diff options
| author | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2011-04-02 06:20:12 -0700 |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2011-08-10 19:54:25 -0700 |
| commit | 644570b830266ff33ff5f3542b9c838f93a55ea6 (patch) | |
| tree | b19c680ce1b1e4cd15465c74aa335459068c033f /drivers/net/ethernet/8390 | |
| parent | b955f6ca776f3bab3d1e2c5fb1d247b203cbda14 (diff) | |
8390: Move the 8390 related drivers
Moves the drivers for the National Semi-conductor 8390 chipset into
drivers/net/ethernet/8390/ and the necessary Kconfig and Makefile
changes.
CC: Donald Becker <becker@scyld.com>
CC: Paul Gortmaker <paul.gortmaker@windriver.com>
CC: Alain Malek <alain.malek@cryogen.com>
CC: Peter De Schrijver <p2@mind.be>
CC: "David Huggins-Daines" <dhd@debian.org>
CC: Wim Dumon <wimpie@kotnet.org>
CC: Yoshinori Sato <ysato@users.sourceforge.jp>
CC: David Hinds <dahinds@users.sourceforge.net>
CC: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/ethernet/8390')
32 files changed, 19131 insertions, 0 deletions
diff --git a/drivers/net/ethernet/8390/3c503.c b/drivers/net/ethernet/8390/3c503.c new file mode 100644 index 000000000000..84e68f1b9adf --- /dev/null +++ b/drivers/net/ethernet/8390/3c503.c @@ -0,0 +1,778 @@ +/* 3c503.c: A shared-memory NS8390 ethernet driver for linux. */ +/* + Written 1992-94 by Donald Becker. + + Copyright 1993 United States Government as represented by the + Director, National Security Agency. This software may be used and + distributed according to the terms of the GNU General Public License, + incorporated herein by reference. + + The author may be reached as becker@scyld.com, or C/O + Scyld Computing Corporation + 410 Severn Ave., Suite 210 + Annapolis MD 21403 + + + This driver should work with the 3c503 and 3c503/16. It should be used + in shared memory mode for best performance, although it may also work + in programmed-I/O mode. + + Sources: + EtherLink II Technical Reference Manual, + EtherLink II/16 Technical Reference Manual Supplement, + 3Com Corporation, 5400 Bayfront Plaza, Santa Clara CA 95052-8145 + + The Crynwr 3c503 packet driver. + + Changelog: + + Paul Gortmaker : add support for the 2nd 8kB of RAM on 16 bit cards. + Paul Gortmaker : multiple card support for module users. + rjohnson@analogic.com : Fix up PIO interface for efficient operation. + Jeff Garzik : ethtool support + +*/ + +#define DRV_NAME "3c503" +#define DRV_VERSION "1.10a" +#define DRV_RELDATE "11/17/2001" + + +static const char version[] = + DRV_NAME ".c:v" DRV_VERSION " " DRV_RELDATE " Donald Becker (becker@scyld.com)\n"; + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/string.h> +#include <linux/delay.h> +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/ethtool.h> + +#include <asm/uaccess.h> +#include <asm/io.h> +#include <asm/system.h> +#include <asm/byteorder.h> + +#include "8390.h" +#include "3c503.h" +#define WRD_COUNT 4 + +static int el2_pio_probe(struct net_device *dev); +static int el2_probe1(struct net_device *dev, int ioaddr); + +/* A zero-terminated list of I/O addresses to be probed in PIO mode. */ +static unsigned int netcard_portlist[] __initdata = + { 0x300,0x310,0x330,0x350,0x250,0x280,0x2a0,0x2e0,0}; + +#define EL2_IO_EXTENT 16 + +static int el2_open(struct net_device *dev); +static int el2_close(struct net_device *dev); +static void el2_reset_8390(struct net_device *dev); +static void el2_init_card(struct net_device *dev); +static void el2_block_output(struct net_device *dev, int count, + const unsigned char *buf, int start_page); +static void el2_block_input(struct net_device *dev, int count, struct sk_buff *skb, + int ring_offset); +static void el2_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, + int ring_page); +static const struct ethtool_ops netdev_ethtool_ops; + + +/* This routine probes for a memory-mapped 3c503 board by looking for + the "location register" at the end of the jumpered boot PROM space. + This works even if a PROM isn't there. + + If the ethercard isn't found there is an optional probe for + ethercard jumpered to programmed-I/O mode. + */ +static int __init do_el2_probe(struct net_device *dev) +{ + int *addr, addrs[] = { 0xddffe, 0xd9ffe, 0xcdffe, 0xc9ffe, 0}; + int base_addr = dev->base_addr; + int irq = dev->irq; + + if (base_addr > 0x1ff) /* Check a single specified location. */ + return el2_probe1(dev, base_addr); + else if (base_addr != 0) /* Don't probe at all. */ + return -ENXIO; + + for (addr = addrs; *addr; addr++) { + void __iomem *p = ioremap(*addr, 1); + unsigned base_bits; + int i; + + if (!p) + continue; + base_bits = readb(p); + iounmap(p); + i = ffs(base_bits) - 1; + if (i == -1 || base_bits != (1 << i)) + continue; + if (el2_probe1(dev, netcard_portlist[i]) == 0) + return 0; + dev->irq = irq; + } +#if ! defined(no_probe_nonshared_memory) + return el2_pio_probe(dev); +#else + return -ENODEV; +#endif +} + +/* Try all of the locations that aren't obviously empty. This touches + a lot of locations, and is much riskier than the code above. */ +static int __init +el2_pio_probe(struct net_device *dev) +{ + int i; + int base_addr = dev->base_addr; + int irq = dev->irq; + + if (base_addr > 0x1ff) /* Check a single specified location. */ + return el2_probe1(dev, base_addr); + else if (base_addr != 0) /* Don't probe at all. */ + return -ENXIO; + + for (i = 0; netcard_portlist[i]; i++) { + if (el2_probe1(dev, netcard_portlist[i]) == 0) + return 0; + dev->irq = irq; + } + + return -ENODEV; +} + +#ifndef MODULE +struct net_device * __init el2_probe(int unit) +{ + struct net_device *dev = alloc_eip_netdev(); + int err; + + if (!dev) + return ERR_PTR(-ENOMEM); + + sprintf(dev->name, "eth%d", unit); + netdev_boot_setup_check(dev); + + err = do_el2_probe(dev); + if (err) + goto out; + return dev; +out: + free_netdev(dev); + return ERR_PTR(err); +} +#endif + +static const struct net_device_ops el2_netdev_ops = { + .ndo_open = el2_open, + .ndo_stop = el2_close, + + .ndo_start_xmit = eip_start_xmit, + .ndo_tx_timeout = eip_tx_timeout, + .ndo_get_stats = eip_get_stats, + .ndo_set_multicast_list = eip_set_multicast_list, + .ndo_validate_addr = eth_validate_addr, + .ndo_set_mac_address = eth_mac_addr, + .ndo_change_mtu = eth_change_mtu, +#ifdef CONFIG_NET_POLL_CONTROLLER + .ndo_poll_controller = eip_poll, +#endif +}; + +/* Probe for the Etherlink II card at I/O port base IOADDR, + returning non-zero on success. If found, set the station + address and memory parameters in DEVICE. */ +static int __init +el2_probe1(struct net_device *dev, int ioaddr) +{ + int i, iobase_reg, membase_reg, saved_406, wordlength, retval; + static unsigned version_printed; + unsigned long vendor_id; + + if (!request_region(ioaddr, EL2_IO_EXTENT, DRV_NAME)) + return -EBUSY; + + if (!request_region(ioaddr + 0x400, 8, DRV_NAME)) { + retval = -EBUSY; + goto out; + } + + /* Reset and/or avoid any lurking NE2000 */ + if (inb(ioaddr + 0x408) == 0xff) { + mdelay(1); + retval = -ENODEV; + goto out1; + } + + /* We verify that it's a 3C503 board by checking the first three octets + of its ethernet address. */ + iobase_reg = inb(ioaddr+0x403); + membase_reg = inb(ioaddr+0x404); + /* ASIC location registers should be 0 or have only a single bit set. */ + if ((iobase_reg & (iobase_reg - 1)) || + (membase_reg & (membase_reg - 1))) { + retval = -ENODEV; + goto out1; + } + saved_406 = inb_p(ioaddr + 0x406); + outb_p(ECNTRL_RESET|ECNTRL_THIN, ioaddr + 0x406); /* Reset it... */ + outb_p(ECNTRL_THIN, ioaddr + 0x406); + /* Map the station addr PROM into the lower I/O ports. We now check + for both the old and new 3Com prefix */ + outb(ECNTRL_SAPROM|ECNTRL_THIN, ioaddr + 0x406); + vendor_id = inb(ioaddr)*0x10000 + inb(ioaddr + 1)*0x100 + inb(ioaddr + 2); + if ((vendor_id != OLD_3COM_ID) && (vendor_id != NEW_3COM_ID)) { + /* Restore the register we frobbed. */ + outb(saved_406, ioaddr + 0x406); + retval = -ENODEV; + goto out1; + } + + if (ei_debug && version_printed++ == 0) + pr_debug("%s", version); + + dev->base_addr = ioaddr; + + pr_info("%s: 3c503 at i/o base %#3x, node ", dev->name, ioaddr); + + /* Retrieve and print the ethernet address. */ + for (i = 0; i < 6; i++) + dev->dev_addr[i] = inb(ioaddr + i); + pr_cont("%pM", dev->dev_addr); + + /* Map the 8390 back into the window. */ + outb(ECNTRL_THIN, ioaddr + 0x406); + + /* Check for EL2/16 as described in tech. man. */ + outb_p(E8390_PAGE0, ioaddr + E8390_CMD); + outb_p(0, ioaddr + EN0_DCFG); + outb_p(E8390_PAGE2, ioaddr + E8390_CMD); + wordlength = inb_p(ioaddr + EN0_DCFG) & ENDCFG_WTS; + outb_p(E8390_PAGE0, ioaddr + E8390_CMD); + + /* Probe for, turn on and clear the board's shared memory. */ + if (ei_debug > 2) + pr_cont(" memory jumpers %2.2x ", membase_reg); + outb(EGACFR_NORM, ioaddr + 0x405); /* Enable RAM */ + + /* This should be probed for (or set via an ioctl()) at run-time. + Right now we use a sleazy hack to pass in the interface number + at boot-time via the low bits of the mem_end field. That value is + unused, and the low bits would be discarded even if it was used. */ +#if defined(EI8390_THICK) || defined(EL2_AUI) + ei_status.interface_num = 1; +#else + ei_status.interface_num = dev->mem_end & 0xf; +#endif + pr_cont(", using %sternal xcvr.\n", ei_status.interface_num == 0 ? "in" : "ex"); + + if ((membase_reg & 0xf0) == 0) { + dev->mem_start = 0; + ei_status.name = "3c503-PIO"; + ei_status.mem = NULL; + } else { + dev->mem_start = ((membase_reg & 0xc0) ? 0xD8000 : 0xC8000) + + ((membase_reg & 0xA0) ? 0x4000 : 0); +#define EL2_MEMSIZE (EL2_MB1_STOP_PG - EL2_MB1_START_PG)*256 + ei_status.mem = ioremap(dev->mem_start, EL2_MEMSIZE); + +#ifdef EL2MEMTEST + /* This has never found an error, but someone might care. + Note that it only tests the 2nd 8kB on 16kB 3c503/16 + cards between card addr. 0x2000 and 0x3fff. */ + { /* Check the card's memory. */ + void __iomem *mem_base = ei_status.mem; + unsigned int test_val = 0xbbadf00d; + writel(0xba5eba5e, mem_base); + for (i = sizeof(test_val); i < EL2_MEMSIZE; i+=sizeof(test_val)) { + writel(test_val, mem_base + i); + if (readl(mem_base) != 0xba5eba5e || + readl(mem_base + i) != test_val) { + pr_warning("3c503: memory failure or memory address conflict.\n"); + dev->mem_start = 0; + ei_status.name = "3c503-PIO"; + iounmap(mem_base); + ei_status.mem = NULL; + break; + } + test_val += 0x55555555; + writel(0, mem_base + i); + } + } +#endif /* EL2MEMTEST */ + + if (dev->mem_start) + dev->mem_end = dev->mem_start + EL2_MEMSIZE; + + if (wordlength) { /* No Tx pages to skip over to get to Rx */ + ei_status.priv = 0; + ei_status.name = "3c503/16"; + } else { + ei_status.priv = TX_PAGES * 256; + ei_status.name = "3c503"; + } + } + + /* + Divide up the memory on the card. This is the same regardless of + whether shared-mem or PIO is used. For 16 bit cards (16kB RAM), + we use the entire 8k of bank1 for an Rx ring. We only use 3k + of the bank0 for 2 full size Tx packet slots. For 8 bit cards, + (8kB RAM) we use 3kB of bank1 for two Tx slots, and the remaining + 5kB for an Rx ring. */ + + if (wordlength) { + ei_status.tx_start_page = EL2_MB0_START_PG; + ei_status.rx_start_page = EL2_MB1_START_PG; + } else { + ei_status.tx_start_page = EL2_MB1_START_PG; + ei_status.rx_start_page = EL2_MB1_START_PG + TX_PAGES; + } + + /* Finish setting the board's parameters. */ + ei_status.stop_page = EL2_MB1_STOP_PG; + ei_status.word16 = wordlength; + ei_status.reset_8390 = el2_reset_8390; + ei_status.get_8390_hdr = el2_get_8390_hdr; + ei_status.block_input = el2_block_input; + ei_status.block_output = el2_block_output; + + if (dev->irq == 2) + dev->irq = 9; + else if (dev->irq > 5 && dev->irq != 9) { + pr_warning("3c503: configured interrupt %d invalid, will use autoIRQ.\n", + dev->irq); + dev->irq = 0; + } + + ei_status.saved_irq = dev->irq; + + dev->netdev_ops = &el2_netdev_ops; + dev->ethtool_ops = &netdev_ethtool_ops; + + retval = register_netdev(dev); + if (retval) + goto out1; + + if (dev->mem_start) + pr_info("%s: %s - %dkB RAM, 8kB shared mem window at %#6lx-%#6lx.\n", + dev->name, ei_status.name, (wordlength+1)<<3, + dev->mem_start, dev->mem_end-1); + + else + { + ei_status.tx_start_page = EL2_MB1_START_PG; + ei_status.rx_start_page = EL2_MB1_START_PG + TX_PAGES; + pr_info("%s: %s, %dkB RAM, using programmed I/O (REJUMPER for SHARED MEMORY).\n", + dev->name, ei_status.name, (wordlength+1)<<3); + } + release_region(ioaddr + 0x400, 8); + return 0; +out1: + release_region(ioaddr + 0x400, 8); +out: + release_region(ioaddr, EL2_IO_EXTENT); + return retval; +} + +static irqreturn_t el2_probe_interrupt(int irq, void *seen) +{ + *(bool *)seen = true; + return IRQ_HANDLED; +} + +static int +el2_open(struct net_device *dev) +{ + int retval; + + if (dev->irq < 2) { + static const int irqlist[] = {5, 9, 3, 4, 0}; + const int *irqp = irqlist; + + outb(EGACFR_NORM, E33G_GACFR); /* Enable RAM and interrupts. */ + do { + bool seen; + + retval = request_irq(*irqp, el2_probe_interrupt, 0, + dev->name, &seen); + if (retval == -EBUSY) + continue; + if (retval < 0) + goto err_disable; + + /* Twinkle the interrupt, and check if it's seen. */ + seen = false; + smp_wmb(); + outb_p(0x04 << ((*irqp == 9) ? 2 : *irqp), E33G_IDCFR); + outb_p(0x00, E33G_IDCFR); + msleep(1); + free_irq(*irqp, &seen); + if (!seen) + continue; + + retval = request_irq(dev->irq = *irqp, eip_interrupt, 0, + dev->name, dev); + if (retval == -EBUSY) + continue; + if (retval < 0) + goto err_disable; + break; + } while (*++irqp); + + if (*irqp == 0) { + err_disable: + outb(EGACFR_IRQOFF, E33G_GACFR); /* disable interrupts. */ + return -EAGAIN; + } + } else { + if ((retval = request_irq(dev->irq, eip_interrupt, 0, dev->name, dev))) { + return retval; + } + } + + el2_init_card(dev); + eip_open(dev); + return 0; +} + +static int +el2_close(struct net_device *dev) +{ + free_irq(dev->irq, dev); + dev->irq = ei_status.saved_irq; + outb(EGACFR_IRQOFF, E33G_GACFR); /* disable interrupts. */ + + eip_close(dev); + return 0; +} + +/* This is called whenever we have a unrecoverable failure: + transmit timeout + Bad ring buffer packet header + */ +static void +el2_reset_8390(struct net_device *dev) +{ + if (ei_debug > 1) { + pr_debug("%s: Resetting the 3c503 board...", dev->name); + pr_cont(" %#lx=%#02x %#lx=%#02x %#lx=%#02x...", E33G_IDCFR, inb(E33G_IDCFR), + E33G_CNTRL, inb(E33G_CNTRL), E33G_GACFR, inb(E33G_GACFR)); + } + outb_p(ECNTRL_RESET|ECNTRL_THIN, E33G_CNTRL); + ei_status.txing = 0; + outb_p(ei_status.interface_num==0 ? ECNTRL_THIN : ECNTRL_AUI, E33G_CNTRL); + el2_init_card(dev); + if (ei_debug > 1) + pr_cont("done\n"); +} + +/* Initialize the 3c503 GA registers after a reset. */ +static void +el2_init_card(struct net_device *dev) +{ + /* Unmap the station PROM and select the DIX or BNC connector. */ + outb_p(ei_status.interface_num==0 ? ECNTRL_THIN : ECNTRL_AUI, E33G_CNTRL); + + /* Set ASIC copy of rx's first and last+1 buffer pages */ + /* These must be the same as in the 8390. */ + outb(ei_status.rx_start_page, E33G_STARTPG); + outb(ei_status.stop_page, E33G_STOPPG); + + /* Point the vector pointer registers somewhere ?harmless?. */ + outb(0xff, E33G_VP2); /* Point at the ROM restart location 0xffff0 */ + outb(0xff, E33G_VP1); + outb(0x00, E33G_VP0); + /* Turn off all interrupts until we're opened. */ + outb_p(0x00, dev->base_addr + EN0_IMR); + /* Enable IRQs iff started. */ + outb(EGACFR_NORM, E33G_GACFR); + + /* Set the interrupt line. */ + outb_p((0x04 << (dev->irq == 9 ? 2 : dev->irq)), E33G_IDCFR); + outb_p((WRD_COUNT << 1), E33G_DRQCNT); /* Set burst size to 8 */ + outb_p(0x20, E33G_DMAAH); /* Put a valid addr in the GA DMA */ + outb_p(0x00, E33G_DMAAL); + return; /* We always succeed */ +} + +/* + * Either use the shared memory (if enabled on the board) or put the packet + * out through the ASIC FIFO. + */ +static void +el2_block_output(struct net_device *dev, int count, + const unsigned char *buf, int start_page) +{ + unsigned short int *wrd; + int boguscount; /* timeout counter */ + unsigned short word; /* temporary for better machine code */ + void __iomem *base = ei_status.mem; + + if (ei_status.word16) /* Tx packets go into bank 0 on EL2/16 card */ + outb(EGACFR_RSEL|EGACFR_TCM, E33G_GACFR); + else + outb(EGACFR_NORM, E33G_GACFR); + + if (base) { /* Shared memory transfer */ + memcpy_toio(base + ((start_page - ei_status.tx_start_page) << 8), + buf, count); + outb(EGACFR_NORM, E33G_GACFR); /* Back to bank1 in case on bank0 */ + return; + } + +/* + * No shared memory, put the packet out the other way. + * Set up then start the internal memory transfer to Tx Start Page + */ + + word = (unsigned short)start_page; + outb(word&0xFF, E33G_DMAAH); + outb(word>>8, E33G_DMAAL); + + outb_p((ei_status.interface_num ? ECNTRL_AUI : ECNTRL_THIN ) | ECNTRL_OUTPUT + | ECNTRL_START, E33G_CNTRL); + +/* + * Here I am going to write data to the FIFO as quickly as possible. + * Note that E33G_FIFOH is defined incorrectly. It is really + * E33G_FIFOL, the lowest port address for both the byte and + * word write. Variable 'count' is NOT checked. Caller must supply a + * valid count. Note that I may write a harmless extra byte to the + * 8390 if the byte-count was not even. + */ + wrd = (unsigned short int *) buf; + count = (count + 1) >> 1; + for(;;) + { + boguscount = 0x1000; + while ((inb(E33G_STATUS) & ESTAT_DPRDY) == 0) + { + if(!boguscount--) + { + pr_notice("%s: FIFO blocked in el2_block_output.\n", dev->name); + el2_reset_8390(dev); + goto blocked; + } + } + if(count > WRD_COUNT) + { + outsw(E33G_FIFOH, wrd, WRD_COUNT); + wrd += WRD_COUNT; + count -= WRD_COUNT; + } + else + { + outsw(E33G_FIFOH, wrd, count); + break; + } + } + blocked:; + outb_p(ei_status.interface_num==0 ? ECNTRL_THIN : ECNTRL_AUI, E33G_CNTRL); +} + +/* Read the 4 byte, page aligned 8390 specific header. */ +static void +el2_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page) +{ + int boguscount; + void __iomem *base = ei_status.mem; + unsigned short word; + + if (base) { /* Use the shared memory. */ + void __iomem *hdr_start = base + ((ring_page - EL2_MB1_START_PG)<<8); + memcpy_fromio(hdr, hdr_start, sizeof(struct e8390_pkt_hdr)); + hdr->count = le16_to_cpu(hdr->count); + return; + } + +/* + * No shared memory, use programmed I/O. + */ + + word = (unsigned short)ring_page; + outb(word&0xFF, E33G_DMAAH); + outb(word>>8, E33G_DMAAL); + + outb_p((ei_status.interface_num == 0 ? ECNTRL_THIN : ECNTRL_AUI) | ECNTRL_INPUT + | ECNTRL_START, E33G_CNTRL); + boguscount = 0x1000; + while ((inb(E33G_STATUS) & ESTAT_DPRDY) == 0) + { + if(!boguscount--) + { + pr_notice("%s: FIFO blocked in el2_get_8390_hdr.\n", dev->name); + memset(hdr, 0x00, sizeof(struct e8390_pkt_hdr)); + el2_reset_8390(dev); + goto blocked; + } + } + insw(E33G_FIFOH, hdr, (sizeof(struct e8390_pkt_hdr))>> 1); + blocked:; + outb_p(ei_status.interface_num == 0 ? ECNTRL_THIN : ECNTRL_AUI, E33G_CNTRL); +} + + +static void +el2_block_input(struct net_device *dev, int count, struct sk_buff *skb, int ring_offset) +{ + int boguscount = 0; + void __iomem *base = ei_status.mem; + unsigned short int *buf; + unsigned short word; + + /* Maybe enable shared memory just be to be safe... nahh.*/ + if (base) { /* Use the shared memory. */ + ring_offset -= (EL2_MB1_START_PG<<8); + if (ring_offset + count > EL2_MEMSIZE) { + /* We must wrap the input move. */ + int semi_count = EL2_MEMSIZE - ring_offset; + memcpy_fromio(skb->data, base + ring_offset, semi_count); + count -= semi_count; + memcpy_fromio(skb->data + semi_count, base + ei_status.priv, count); + } else { + memcpy_fromio(skb->data, base + ring_offset, count); + } + return; + } + +/* + * No shared memory, use programmed I/O. + */ + word = (unsigned short) ring_offset; + outb(word>>8, E33G_DMAAH); + outb(word&0xFF, E33G_DMAAL); + + outb_p((ei_status.interface_num == 0 ? ECNTRL_THIN : ECNTRL_AUI) | ECNTRL_INPUT + | ECNTRL_START, E33G_CNTRL); + +/* + * Here I also try to get data as fast as possible. I am betting that I + * can read one extra byte without clobbering anything in the kernel because + * this would only occur on an odd byte-count and allocation of skb->data + * is word-aligned. Variable 'count' is NOT checked. Caller must check + * for a valid count. + * [This is currently quite safe.... but if one day the 3c503 explodes + * you know where to come looking ;)] + */ + + buf = (unsigned short int *) skb->data; + count = (count + 1) >> 1; + for(;;) + { + boguscount = 0x1000; + while ((inb(E33G_STATUS) & ESTAT_DPRDY) == 0) + { + if(!boguscount--) + { + pr_notice("%s: FIFO blocked in el2_block_input.\n", dev->name); + el2_reset_8390(dev); + goto blocked; + } + } + if(count > WRD_COUNT) + { + insw(E33G_FIFOH, buf, WRD_COUNT); + buf += WRD_COUNT; + count -= WRD_COUNT; + } + else + { + insw(E33G_FIFOH, buf, count); + break; + } + } + blocked:; + outb_p(ei_status.interface_num == 0 ? ECNTRL_THIN : ECNTRL_AUI, E33G_CNTRL); +} + + +static void netdev_get_drvinfo(struct net_device *dev, + struct ethtool_drvinfo *info) +{ + strcpy(info->driver, DRV_NAME); + strcpy(info->version, DRV_VERSION); + sprintf(info->bus_info, "ISA 0x%lx", dev->base_addr); +} + +static const struct ethtool_ops netdev_ethtool_ops = { + .get_drvinfo = netdev_get_drvinfo, +}; + +#ifdef MODULE +#define MAX_EL2_CARDS 4 /* Max number of EL2 cards per module */ + +static struct net_device *dev_el2[MAX_EL2_CARDS]; +static int io[MAX_EL2_CARDS]; +static int irq[MAX_EL2_CARDS]; +static int xcvr[MAX_EL2_CARDS]; /* choose int. or ext. xcvr */ +module_param_array(io, int, NULL, 0); +module_param_array(irq, int, NULL, 0); +module_param_array(xcvr, int, NULL, 0); +MODULE_PARM_DESC(io, "I/O base address(es)"); +MODULE_PARM_DESC(irq, "IRQ number(s) (assigned)"); +MODULE_PARM_DESC(xcvr, "transceiver(s) (0=internal, 1=external)"); +MODULE_DESCRIPTION("3Com ISA EtherLink II, II/16 (3c503, 3c503/16) driver"); +MODULE_LICENSE("GPL"); + +/* This is set up so that only a single autoprobe takes place per call. +ISA device autoprobes on a running machine are not recommended. */ +int __init +init_module(void) +{ + struct net_device *dev; + int this_dev, found = 0; + + for (this_dev = 0; this_dev < MAX_EL2_CARDS; this_dev++) { + if (io[this_dev] == 0) { + if (this_dev != 0) break; /* only autoprobe 1st one */ + pr_notice("3c503.c: Presently autoprobing (not recommended) for a single card.\n"); + } + dev = alloc_eip_netdev(); + if (!dev) + break; + dev->irq = irq[this_dev]; + dev->base_addr = io[this_dev]; + dev->mem_end = xcvr[this_dev]; /* low 4bits = xcvr sel. */ + if (do_el2_probe(dev) == 0) { + dev_el2[found++] = dev; + continue; + } + free_netdev(dev); + pr_warning("3c503.c: No 3c503 card found (i/o = 0x%x).\n", io[this_dev]); + break; + } + if (found) + return 0; + return -ENXIO; +} + +static void cleanup_card(struct net_device *dev) +{ + /* NB: el2_close() handles free_irq */ + release_region(dev->base_addr, EL2_IO_EXTENT); + if (ei_status.mem) + iounmap(ei_status.mem); +} + +void __exit +cleanup_module(void) +{ + int this_dev; + + for (this_dev = 0; this_dev < MAX_EL2_CARDS; this_dev++) { + struct net_device *dev = dev_el2[this_dev]; + if (dev) { + unregister_netdev(dev); + cleanup_card(dev); + free_netdev(dev); + } + } +} +#endif /* MODULE */ diff --git a/drivers/net/ethernet/8390/3c503.h b/drivers/net/ethernet/8390/3c503.h new file mode 100644 index 000000000000..e2367b82a2ec --- /dev/null +++ b/drivers/net/ethernet/8390/3c503.h @@ -0,0 +1,91 @@ +/* Definitions for the 3Com 3c503 Etherlink 2. */ +/* This file is distributed under the GPL. + Many of these names and comments are directly from the Crynwr packet + drivers, which are released under the GPL. */ + +#define EL2H (dev->base_addr + 0x400) +#define EL2L (dev->base_addr) + +/* Vendor unique hardware addr. prefix. 3Com has 2 because they ran + out of available addresses on the first one... */ + +#define OLD_3COM_ID 0x02608c +#define NEW_3COM_ID 0x0020af + +/* Shared memory management parameters. NB: The 8 bit cards have only + one bank (MB1) which serves both Tx and Rx packet space. The 16bit + cards have 2 banks, MB0 for Tx packets, and MB1 for Rx packets. + You choose which bank appears in the sh. mem window with EGACFR_MBSn */ + +#define EL2_MB0_START_PG (0x00) /* EL2/16 Tx packets go in bank 0 */ +#define EL2_MB1_START_PG (0x20) /* First page of bank 1 */ +#define EL2_MB1_STOP_PG (0x40) /* Last page +1 of bank 1 */ + +/* 3Com 3c503 ASIC registers */ +#define E33G_STARTPG (EL2H+0) /* Start page, matching EN0_STARTPG */ +#define E33G_STOPPG (EL2H+1) /* Stop page, must match EN0_STOPPG */ +#define E33G_DRQCNT (EL2H+2) /* DMA burst count */ +#define E33G_IOBASE (EL2H+3) /* Read of I/O base jumpers. */ + /* (non-useful, but it also appears at the end of EPROM space) */ +#define E33G_ROMBASE (EL2H+4) /* Read of memory base jumpers. */ +#define E33G_GACFR (EL2H+5) /* Config/setup bits for the ASIC GA */ +#define E33G_CNTRL (EL2H+6) /* Board's main control register */ +#define E33G_STATUS (EL2H+7) /* Status on completions. */ +#define E33G_IDCFR (EL2H+8) /* Interrupt/DMA config register */ + /* (Which IRQ to assert, DMA chan to use) */ +#define E33G_DMAAH (EL2H+9) /* High byte of DMA address reg */ +#define E33G_DMAAL (EL2H+10) /* Low byte of DMA address reg */ +/* "Vector pointer" - if this address matches a read, the EPROM (rather than + shared RAM) is mapped into memory space. */ +#define E33G_VP2 (EL2H+11) +#define E33G_VP1 (EL2H+12) +#define E33G_VP0 (EL2H+13) +#define E33G_FIFOH (EL2H+14) /* FIFO for programmed I/O moves */ +#define E33G_FIFOL (EL2H+15) /* ... low byte of above. */ + +/* Bits in E33G_CNTRL register: */ + +#define ECNTRL_RESET (0x01) /* Software reset of the ASIC and 8390 */ +#define ECNTRL_THIN (0x02) /* Onboard xcvr enable, AUI disable */ +#define ECNTRL_AUI (0x00) /* Onboard xcvr disable, AUI enable */ +#define ECNTRL_SAPROM (0x04) /* Map the station address prom */ +#define ECNTRL_DBLBFR (0x20) /* FIFO configuration bit */ +#define ECNTRL_OUTPUT (0x40) /* PC-to-3C503 direction if 1 */ +#define ECNTRL_INPUT (0x00) /* 3C503-to-PC direction if 0 */ +#define ECNTRL_START (0x80) /* Start the DMA logic */ + +/* Bits in E33G_STATUS register: */ + +#define ESTAT_DPRDY (0x80) /* Data port (of FIFO) ready */ +#define ESTAT_UFLW (0x40) /* Tried to read FIFO when it was empty */ +#define ESTAT_OFLW (0x20) /* Tried to write FIFO when it was full */ +#define ESTAT_DTC (0x10) /* Terminal Count from PC bus DMA logic */ +#define ESTAT_DIP (0x08) /* DMA In Progress */ + +/* Bits in E33G_GACFR register: */ + +#define EGACFR_NIM (0x80) /* NIC interrupt mask */ +#define EGACFR_TCM (0x40) /* DMA term. count interrupt mask */ +#define EGACFR_RSEL (0x08) /* Map a bank of card mem into system mem */ +#define EGACFR_MBS2 (0x04) /* Memory bank select, bit 2. */ +#define EGACFR_MBS1 (0x02) /* Memory bank select, bit 1. */ +#define EGACFR_MBS0 (0x01) /* Memory bank select, bit 0. */ + +#define EGACFR_NORM (0x49) /* TCM | RSEL | MBS0 */ +#define EGACFR_IRQOFF (0xc9) /* TCM | RSEL | MBS0 | NIM */ + +/* + MBS2 MBS1 MBS0 Sh. mem windows card mem at: + ---- ---- ---- ----------------------------- + 0 0 0 0x0000 -- bank 0 + 0 0 1 0x2000 -- bank 1 (only choice for 8bit card) + 0 1 0 0x4000 -- bank 2, not used + 0 1 1 0x6000 -- bank 3, not used + +There was going to be a 32k card that used bank 2 and 3, but it +never got produced. + +*/ + + +/* End of 3C503 parameter definitions */ diff --git a/drivers/net/ethernet/8390/8390.c b/drivers/net/ethernet/8390/8390.c new file mode 100644 index 000000000000..7c7518be1756 --- /dev/null +++ b/drivers/net/ethernet/8390/8390.c @@ -0,0 +1,103 @@ +/* 8390 core for usual drivers */ + +static const char version[] = + "8390.c:v1.10cvs 9/23/94 Donald Becker (becker@cesdis.gsfc.nasa.gov)\n"; + +#include "lib8390.c" + +int ei_open(struct net_device *dev) +{ + return __ei_open(dev); +} +EXPORT_SYMBOL(ei_open); + +int ei_close(struct net_device *dev) +{ + return __ei_close(dev); +} +EXPORT_SYMBOL(ei_close); + +netdev_tx_t ei_start_xmit(struct sk_buff *skb, struct net_device *dev) +{ + return __ei_start_xmit(skb, dev); +} +EXPORT_SYMBOL(ei_start_xmit); + +struct net_device_stats *ei_get_stats(struct net_device *dev) +{ + return __ei_get_stats(dev); +} +EXPORT_SYMBOL(ei_get_stats); + +void ei_set_multicast_list(struct net_device *dev) +{ + __ei_set_multicast_list(dev); +} +EXPORT_SYMBOL(ei_set_multicast_list); + +void ei_tx_timeout(struct net_device *dev) +{ + __ei_tx_timeout(dev); +} +EXPORT_SYMBOL(ei_tx_timeout); + +irqreturn_t ei_interrupt(int irq, void *dev_id) +{ + return __ei_interrupt(irq, dev_id); +} +EXPORT_SYMBOL(ei_interrupt); + +#ifdef CONFIG_NET_POLL_CONTROLLER +void ei_poll(struct net_device *dev) +{ + __ei_poll(dev); +} +EXPORT_SYMBOL(ei_poll); +#endif + +const struct net_device_ops ei_netdev_ops = { + .ndo_open = ei_open, + .ndo_stop = ei_close, + .ndo_start_xmit = ei_start_xmit, + .ndo_tx_timeout = ei_tx_timeout, + .ndo_get_stats = ei_get_stats, + .ndo_set_multicast_list = ei_set_multicast_list, + .ndo_validate_addr = eth_validate_addr, + .ndo_set_mac_address = eth_mac_addr, + .ndo_change_mtu = eth_change_mtu, +#ifdef CONFIG_NET_POLL_CONTROLLER + .ndo_poll_controller = ei_poll, +#endif +}; +EXPORT_SYMBOL(ei_netdev_ops); + +struct net_device *__alloc_ei_netdev(int size) +{ + struct net_device *dev = ____alloc_ei_netdev(size); + if (dev) + dev->netdev_ops = &ei_netdev_ops; + return dev; +} +EXPORT_SYMBOL(__alloc_ei_netdev); + +void NS8390_init(struct net_device *dev, int startp) +{ + __NS8390_init(dev, startp); +} +EXPORT_SYMBOL(NS8390_init); + +#if defined(MODULE) + +static int __init ns8390_module_init(void) +{ + return 0; +} + +static void __exit ns8390_module_exit(void) +{ +} + +module_init(ns8390_module_init); +module_exit(ns8390_module_exit); +#endif /* MODULE */ +MODULE_LICENSE("GPL"); diff --git a/drivers/net/ethernet/8390/8390.h b/drivers/net/ethernet/8390/8390.h new file mode 100644 index 000000000000..58a12e4c78f9 --- /dev/null +++ b/drivers/net/ethernet/8390/8390.h @@ -0,0 +1,232 @@ +/* Generic NS8390 register definitions. */ +/* This file is part of Donald Becker's 8390 drivers, and is distributed + under the same license. Auto-loading of 8390.o only in v2.2 - Paul G. + Some of these names and comments originated from the Crynwr + packet drivers, which are distributed under the GPL. */ + +#ifndef _8390_h +#define _8390_h + +#include <linux/if_ether.h> +#include <linux/ioport.h> +#include <linux/irqreturn.h> +#include <linux/skbuff.h> + +#define TX_PAGES 12 /* Two Tx slots */ + +#define ETHER_ADDR_LEN 6 + +/* The 8390 specific per-packet-header format. */ +struct e8390_pkt_hdr { + unsigned char status; /* status */ + unsigned char next; /* pointer to next packet. */ + unsigned short count; /* header + packet length in bytes */ +}; + +#ifdef notdef +extern int ei_debug; +#else +#define ei_debug 1 +#endif + +#ifdef CONFIG_NET_POLL_CONTROLLER +extern void ei_poll(struct net_device *dev); +extern void eip_poll(struct net_device *dev); +#endif + + +/* Without I/O delay - non ISA or later chips */ +extern void NS8390_init(struct net_device *dev, int startp); +extern int ei_open(struct net_device *dev); +extern int ei_close(struct net_device *dev); +extern irqreturn_t ei_interrupt(int irq, void *dev_id); +extern void ei_tx_timeout(struct net_device *dev); +extern netdev_tx_t ei_start_xmit(struct sk_buff *skb, struct net_device *dev); +extern void ei_set_multicast_list(struct net_device *dev); +extern struct net_device_stats *ei_get_stats(struct net_device *dev); + +extern const struct net_device_ops ei_netdev_ops; + +extern struct net_device *__alloc_ei_netdev(int size); +static inline struct net_device *alloc_ei_netdev(void) +{ + return __alloc_ei_netdev(0); +} + +/* With I/O delay form */ +extern void NS8390p_init(struct net_device *dev, int startp); +extern int eip_open(struct net_device *dev); +extern int eip_close(struct net_device *dev); +extern irqreturn_t eip_interrupt(int irq, void *dev_id); +extern void eip_tx_timeout(struct net_device *dev); +extern netdev_tx_t eip_start_xmit(struct sk_buff *skb, struct net_device *dev); +extern void eip_set_multicast_list(struct net_device *dev); +extern struct net_device_stats *eip_get_stats(struct net_device *dev); + +extern const struct net_device_ops eip_netdev_ops; + +extern struct net_device *__alloc_eip_netdev(int size); +static inline struct net_device *alloc_eip_netdev(void) +{ + return __alloc_eip_netdev(0); +} + +/* You have one of these per-board */ +struct ei_device { + const char *name; + void (*reset_8390)(struct net_device *); + void (*get_8390_hdr)(struct net_device *, struct e8390_pkt_hdr *, int); + void (*block_output)(struct net_device *, int, const unsigned char *, int); + void (*block_input)(struct net_device *, int, struct sk_buff *, int); + unsigned long rmem_start; + unsigned long rmem_end; + void __iomem *mem; + unsigned char mcfilter[8]; + unsigned open:1; + unsigned word16:1; /* We have the 16-bit (vs 8-bit) version of the card. */ + unsigned bigendian:1; /* 16-bit big endian mode. Do NOT */ + /* set this on random 8390 clones! */ + unsigned txing:1; /* Transmit Active */ + unsigned irqlock:1; /* 8390's intrs disabled when '1'. */ + unsigned dmaing:1; /* Remote DMA Active */ + unsigned char tx_start_page, rx_start_page, stop_page; + unsigned char current_page; /* Read pointer in buffer */ + unsigned char interface_num; /* Net port (AUI, 10bT.) to use. */ + unsigned char txqueue; /* Tx Packet buffer queue length. */ + short tx1, tx2; /* Packet lengths for ping-pong tx. */ + short lasttx; /* Alpha version consistency check. */ + unsigned char reg0; /* Register '0' in a WD8013 */ + unsigned char reg5; /* Register '5' in a WD8013 */ + unsigned char saved_irq; /* Original dev->irq value. */ + u32 *reg_offset; /* Register mapping table */ + spinlock_t page_lock; /* Page register locks */ + unsigned long priv; /* Private field to store bus IDs etc. */ +#ifdef AX88796_PLATFORM + unsigned char rxcr_base; /* default value for RXCR */ +#endif +}; + +/* The maximum number of 8390 interrupt service routines called per IRQ. */ +#define MAX_SERVICE 12 + +/* The maximum time waited (in jiffies) before assuming a Tx failed. (20ms) */ +#define TX_TIMEOUT (20*HZ/100) + +#define ei_status (*(struct ei_device *)netdev_priv(dev)) + +/* Some generic ethernet register configurations. */ +#define E8390_TX_IRQ_MASK 0xa /* For register EN0_ISR */ +#define E8390_RX_IRQ_MASK 0x5 + +#ifdef AX88796_PLATFORM +#define E8390_RXCONFIG (ei_status.rxcr_base | 0x04) +#define E8390_RXOFF (ei_status.rxcr_base | 0x20) +#else +#define E8390_RXCONFIG 0x4 /* EN0_RXCR: broadcasts, no multicast,errors */ +#define E8390_RXOFF 0x20 /* EN0_RXCR: Accept no packets */ +#endif + +#define E8390_TXCONFIG 0x00 /* EN0_TXCR: Normal transmit mode */ +#define E8390_TXOFF 0x02 /* EN0_TXCR: Transmitter off */ + + +/* Register accessed at EN_CMD, the 8390 base addr. */ +#define E8390_STOP 0x01 /* Stop and reset the chip */ +#define E8390_START 0x02 /* Start the chip, clear reset */ +#define E8390_TRANS 0x04 /* Transmit a frame */ +#define E8390_RREAD 0x08 /* Remote read */ +#define E8390_RWRITE 0x10 /* Remote write */ +#define E8390_NODMA 0x20 /* Remote DMA */ +#define E8390_PAGE0 0x00 /* Select page chip registers */ +#define E8390_PAGE1 0x40 /* using the two high-order bits */ +#define E8390_PAGE2 0x80 /* Page 3 is invalid. */ + +/* + * Only generate indirect loads given a machine that needs them. + * - removed AMIGA_PCMCIA from this list, handled as ISA io now + * - the _p for generates no delay by default 8390p.c overrides this. + */ + +#ifndef ei_inb +#define ei_inb(_p) inb(_p) +#define ei_outb(_v,_p) outb(_v,_p) +#define ei_inb_p(_p) inb(_p) +#define ei_outb_p(_v,_p) outb(_v,_p) +#endif + +#ifndef EI_SHIFT +#define EI_SHIFT(x) (x) +#endif + +#define E8390_CMD EI_SHIFT(0x00) /* The command register (for all pages) */ +/* Page 0 register offsets. */ +#define EN0_CLDALO EI_SHIFT(0x01) /* Low byte of current local dma addr RD */ +#define EN0_STARTPG EI_SHIFT(0x01) /* Starting page of ring bfr WR */ +#define EN0_CLDAHI EI_SHIFT(0x02) /* High byte of current local dma addr RD */ +#define EN0_STOPPG EI_SHIFT(0x02) /* Ending page +1 of ring bfr WR */ +#define EN0_BOUNDARY EI_SHIFT(0x03) /* Boundary page of ring bfr RD WR */ +#define EN0_TSR EI_SHIFT(0x04) /* Transmit status reg RD */ +#define EN0_TPSR EI_SHIFT(0x04) /* Transmit starting page WR */ +#define EN0_NCR EI_SHIFT(0x05) /* Number of collision reg RD */ +#define EN0_TCNTLO EI_SHIFT(0x05) /* Low byte of tx byte count WR */ +#define EN0_FIFO EI_SHIFT(0x06) /* FIFO RD */ +#define EN0_TCNTHI EI_SHIFT(0x06) /* High byte of tx byte count WR */ +#define EN0_ISR EI_SHIFT(0x07) /* Interrupt status reg RD WR */ +#define EN0_CRDALO EI_SHIFT(0x08) /* low byte of current remote dma address RD */ +#define EN0_RSARLO EI_SHIFT(0x08) /* Remote start address reg 0 */ +#define EN0_CRDAHI EI_SHIFT(0x09) /* high byte, current remote dma address RD */ +#define EN0_RSARHI EI_SHIFT(0x09) /* Remote start address reg 1 */ +#define EN0_RCNTLO EI_SHIFT(0x0a) /* Remote byte count reg WR */ +#define EN0_RCNTHI EI_SHIFT(0x0b) /* Remote byte count reg WR */ +#define EN0_RSR EI_SHIFT(0x0c) /* rx status reg RD */ +#define EN0_RXCR EI_SHIFT(0x0c) /* RX configuration reg WR */ +#define EN0_TXCR EI_SHIFT(0x0d) /* TX configuration reg WR */ +#define EN0_COUNTER0 EI_SHIFT(0x0d) /* Rcv alignment error counter RD */ +#define EN0_DCFG EI_SHIFT(0x0e) /* Data configuration reg WR */ +#define EN0_COUNTER1 EI_SHIFT(0x0e) /* Rcv CRC error counter RD */ +#define EN0_IMR EI_SHIFT(0x0f) /* Interrupt mask reg WR */ +#define EN0_COUNTER2 EI_SHIFT(0x0f) /* Rcv missed frame error counter RD */ + +/* Bits in EN0_ISR - Interrupt status register */ +#define ENISR_RX 0x01 /* Receiver, no error */ +#define ENISR_TX 0x02 /* Transmitter, no error */ +#define ENISR_RX_ERR 0x04 /* Receiver, with error */ +#define ENISR_TX_ERR 0x08 /* Transmitter, with error */ +#define ENISR_OVER 0x10 /* Receiver overwrote the ring */ +#define ENISR_COUNTERS 0x20 /* Counters need emptying */ +#define ENISR_RDC 0x40 /* remote dma complete */ +#define ENISR_RESET 0x80 /* Reset completed */ +#define ENISR_ALL 0x3f /* Interrupts we will enable */ + +/* Bits in EN0_DCFG - Data config register */ +#define ENDCFG_WTS 0x01 /* word transfer mode selection */ +#define ENDCFG_BOS 0x02 /* byte order selection */ + +/* Page 1 register offsets. */ +#define EN1_PHYS EI_SHIFT(0x01) /* This board's physical enet addr RD WR */ +#define EN1_PHYS_SHIFT(i) EI_SHIFT(i+1) /* Get and set mac address */ +#define EN1_CURPAG EI_SHIFT(0x07) /* Current memory page RD WR */ +#define EN1_MULT EI_SHIFT(0x08) /* Multicast filter mask array (8 bytes) RD WR */ +#define EN1_MULT_SHIFT(i) EI_SHIFT(8+i) /* Get and set multicast filter */ + +/* Bits in received packet status byte and EN0_RSR*/ +#define ENRSR_RXOK 0x01 /* Received a good packet */ +#define ENRSR_CRC 0x02 /* CRC error */ +#define ENRSR_FAE 0x04 /* frame alignment error */ +#define ENRSR_FO 0x08 /* FIFO overrun */ +#define ENRSR_MPA 0x10 /* missed pkt */ +#define ENRSR_PHY 0x20 /* physical/multicast address */ +#define ENRSR_DIS 0x40 /* receiver disable. set in monitor mode */ +#define ENRSR_DEF 0x80 /* deferring */ + +/* Transmitted packet status, EN0_TSR. */ +#define ENTSR_PTX 0x01 /* Packet transmitted without error */ +#define ENTSR_ND 0x02 /* The transmit wasn't deferred. */ +#define ENTSR_COL 0x04 /* The transmit collided at least once. */ +#define ENTSR_ABT 0x08 /* The transmit collided 16 times, and was deferred. */ +#define ENTSR_CRS 0x10 /* The carrier sense was lost. */ +#define ENTSR_FU 0x20 /* A "FIFO underrun" occurred during transmit. */ +#define ENTSR_CDH 0x40 /* The collision detect "heartbeat" signal was lost. */ +#define ENTSR_OWC 0x80 /* There was an out-of-window collision. */ + +#endif /* _8390_h */ diff --git a/drivers/net/ethernet/8390/8390p.c b/drivers/net/ethernet/8390/8390p.c new file mode 100644 index 000000000000..a2a64ea0b691 --- /dev/null +++ b/drivers/net/ethernet/8390/8390p.c @@ -0,0 +1,105 @@ +/* 8390 core for ISA devices needing bus delays */ + +static const char version[] = + "8390p.c:v1.10cvs 9/23/94 Donald Becker (becker@cesdis.gsfc.nasa.gov)\n"; + +#define ei_inb(_p) inb(_p) +#define ei_outb(_v, _p) outb(_v, _p) +#define ei_inb_p(_p) inb_p(_p) +#define ei_outb_p(_v, _p) outb_p(_v, _p) + +#include "lib8390.c" + +int eip_open(struct net_device *dev) +{ + return __ei_open(dev); +} +EXPORT_SYMBOL(eip_open); + +int eip_close(struct net_device *dev) +{ + return __ei_close(dev); +} +EXPORT_SYMBOL(eip_close); + +netdev_tx_t eip_start_xmit(struct sk_buff *skb, struct net_device *dev) +{ + return __ei_start_xmit(skb, dev); +} +EXPORT_SYMBOL(eip_start_xmit); + +struct net_device_stats *eip_get_stats(struct net_device *dev) +{ + return __ei_get_stats(dev); +} +EXPORT_SYMBOL(eip_get_stats); + +void eip_set_multicast_list(struct net_device *dev) +{ + __ei_set_multicast_list(dev); +} +EXPORT_SYMBOL(eip_set_multicast_list); + +void eip_tx_timeout(struct net_device *dev) +{ + __ei_tx_timeout(dev); +} +EXPORT_SYMBOL(eip_tx_timeout); + +irqreturn_t eip_interrupt(int irq, void *dev_id) +{ + return __ei_interrupt(irq, dev_id); +} +EXPORT_SYMBOL(eip_interrupt); + +#ifdef CONFIG_NET_POLL_CONTROLLER +void eip_poll(struct net_device *dev) +{ + __ei_poll(dev); +} +EXPORT_SYMBOL(eip_poll); +#endif + +const struct net_device_ops eip_netdev_ops = { + .ndo_open = eip_open, + .ndo_stop = eip_close, + .ndo_start_xmit = eip_start_xmit, + .ndo_tx_timeout = eip_tx_timeout, + .ndo_get_stats = eip_get_stats, + .ndo_set_multicast_list = eip_set_multicast_list, + .ndo_validate_addr = eth_validate_addr, + .ndo_set_mac_address = eth_mac_addr, + .ndo_change_mtu = eth_change_mtu, +#ifdef CONFIG_NET_POLL_CONTROLLER + .ndo_poll_controller = eip_poll, +#endif +}; +EXPORT_SYMBOL(eip_netdev_ops); + +struct net_device *__alloc_eip_netdev(int size) +{ + struct net_device *dev = ____alloc_ei_netdev(size); + if (dev) + dev->netdev_ops = &eip_netdev_ops; + return dev; +} +EXPORT_SYMBOL(__alloc_eip_netdev); + +void NS8390p_init(struct net_device *dev, int startp) +{ + __NS8390_init(dev, startp); +} +EXPORT_SYMBOL(NS8390p_init); + +static int __init NS8390p_init_module(void) +{ + return 0; +} + +static void __exit NS8390p_cleanup_module(void) +{ +} + +module_init(NS8390p_init_module); +module_exit(NS8390p_cleanup_module); +MODULE_LICENSE("GPL"); diff --git a/drivers/net/ethernet/8390/Kconfig b/drivers/net/ethernet/8390/Kconfig new file mode 100644 index 000000000000..5cd53f1b84d3 --- /dev/null +++ b/drivers/net/ethernet/8390/Kconfig @@ -0,0 +1,348 @@ +# +# 8390 device configuration +# + +config NET_VENDOR_8390 + bool "National Semi-conductor 8390 devices" + depends on AMIGA_PCMCIA || PCI || SUPERH || ISA || MCA || EISA || \ + MAC || M32R || MACH_TX49XX || MCA_LEGACY || H8300 || \ + ARM || MIPS || ZORRO || PCMCIA || EXPERIMENTAL + ---help--- + If you have a network (Ethernet) card belonging to this class, say Y + and read the Ethernet-HOWTO, available from + <http://www.tldp.org/docs.html#howto>. + + Note that the answer to this question doesn't directly affect the + kernel: saying N will just cause the configurator to skip all + the questions about Western Digital cards. If you say Y, you will be + asked for your specific card in the following questions. + +if NET_VENDOR_8390 + +config EL2 + tristate "3c503 \"EtherLink II\" support" + depends on ISA + select CRC32 + ---help--- + If you have a network (Ethernet) card of this type, say Y and read + the Ethernet-HOWTO, available from + <http://www.tldp.org/docs.html#howto>. + + To compile this driver as a module, choose M here. The module + will be called 3c503. + +config AC3200 + tristate "Ansel Communications EISA 3200 support (EXPERIMENTAL)" + depends on PCI && (ISA || EISA) && EXPERIMENTAL + select CRC32 + ---help--- + If you have a network (Ethernet) card of this type, say Y and read + the Ethernet-HOWTO, available from + <http://www.tldp.org/docs.html#howto>. + + To compile this driver as a module, choose M here. The module + will be called ac3200. + +config PCMCIA_AXNET + tristate "Asix AX88190 PCMCIA support" + depends on PCMCIA + ---help--- + Say Y here if you intend to attach an Asix AX88190-based PCMCIA + (PC-card) Fast Ethernet card to your computer. These cards are + nearly NE2000 compatible but need a separate driver due to a few + misfeatures. + + To compile this driver as a module, choose M here: the module will be + called axnet_cs. If unsure, say N. + +config AX88796 + tristate "ASIX AX88796 NE2000 clone support" + depends on (ARM || MIPS || SUPERH) + select PHYLIB + select MDIO_BITBANG + ---help--- + AX88796 driver, using platform bus to provide + chip detection and resources + +config AX88796_93CX6 + bool "ASIX AX88796 external 93CX6 eeprom support" + depends on AX88796 + select EEPROM_93CX6 + ---help--- + Select this if your platform comes with an external 93CX6 eeprom. + +config E2100 + tristate "Cabletron E21xx support" + depends on ISA + select CRC32 + ---help--- + If you have a network (Ethernet) card of this type, say Y and read + the Ethernet-HOWTO, available from + <http://www.tldp.org/docs.html#howto>. + + To compile this driver as a module, choose M here. The module + will be called e2100. + +config ES3210 + tristate "Racal-Interlan EISA ES3210 support (EXPERIMENTAL)" + depends on PCI && EISA && EXPERIMENTAL + select CRC32 + ---help--- + If you have a network (Ethernet) card of this type, say Y and read + the Ethernet-HOWTO, available from + <http://www.tldp.org/docs.html#howto>. + + To compile this driver as a module, choose M here. The module + will be called es3210. + +config HPLAN_PLUS + tristate "HP PCLAN+ (27247B and 27252A) support" + depends on ISA + select CRC32 + ---help--- + If you have a network (Ethernet) card of this type, say Y and read + the Ethernet-HOWTO, available from + <http://www.tldp.org/docs.html#howto>. + + To compile this driver as a module, choose M here. The module + will be called hp-plus. + +config HPLAN + tristate "HP PCLAN (27245 and other 27xxx series) support" + depends on ISA + select CRC32 + ---help--- + If you have a network (Ethernet) card of this type, say Y and read + the Ethernet-HOWTO, available from + <http://www.tldp.org/docs.html#howto>. + + To compile this driver as a module, choose M here. The module + will be called hp. + +config HYDRA + tristate "Hydra support" + depends on ZORRO + select CRC32 + ---help--- + If you have a Hydra Ethernet adapter, say Y. Otherwise, say N. + + To compile this driver as a module, choose M here: the module + will be called hydra. + +config ARM_ETHERH + tristate "I-cubed EtherH/ANT EtherM support" + depends on ARM && ARCH_ACORN + select CRC32 + ---help--- + If you have an Acorn system with one of these network cards, you + should say Y to this option if you wish to use it with Linux. + +config LNE390 + tristate "Mylex EISA LNE390A/B support (EXPERIMENTAL)" + depends on PCI && EISA && EXPERIMENTAL + select CRC32 + ---help--- + If you have a network (Ethernet) card of this type, say Y and read + the Ethernet-HOWTO, available from + <http://www.tldp.org/docs.html#howto>. + + To compile this driver as a module, choose M here. The module + will be called lne390. + +config MAC8390 + bool "Macintosh NS 8390 based ethernet cards" + depends on MAC + select CRC32 + ---help--- + If you want to include a driver to support Nubus or LC-PDS + Ethernet cards using an NS8390 chipset or its equivalent, say Y + and read the Ethernet-HOWTO, available from + <http://www.tldp.org/docs.html#howto>. + +config NE2000 + tristate "NE2000/NE1000 support" + depends on (ISA || (Q40 && m) || M32R || MACH_TX49XX) + select CRC32 + ---help--- + If you have a network (Ethernet) card of this type, say Y and read + the Ethernet-HOWTO, available from + <http://www.tldp.org/docs.html#howto>. Many Ethernet cards + without a specific driver are compatible with NE2000. + + If you have a PCI NE2000 card however, say N here and Y to "PCI + NE2000 and clone support" under "EISA, VLB, PCI and on board + controllers" below. If you have a NE2000 card and are running on + an MCA system (a bus system used on some IBM PS/2 computers and + laptops), say N here and Y to "NE/2 (ne2000 MCA version) support", + below. + + To compile this driver as a module, choose M here. The module + will be called ne. + +config NE2_MCA + tristate "NE/2 (ne2000 MCA version) support" + depends on MCA_LEGACY + select CRC32 + ---help--- + If you have a network (Ethernet) card of this type, say Y and read + the Ethernet-HOWTO, available from + <http://www.tldp.org/docs.html#howto>. + + To compile this driver as a module, choose M here. The module + will be called ne2. + +config NE2K_PCI + tristate "PCI NE2000 and clones support (see help)" + depends on PCI + select CRC32 + ---help--- + This driver is for NE2000 compatible PCI cards. It will not work + with ISA NE2000 cards (they have their own driver, "NE2000/NE1000 + support" below). If you have a PCI NE2000 network (Ethernet) card, + say Y and read the Ethernet-HOWTO, available from + <http://www.tldp.org/docs.html#howto>. + + This driver also works for the following NE2000 clone cards: + RealTek RTL-8029 Winbond 89C940 Compex RL2000 KTI ET32P2 + NetVin NV5000SC Via 86C926 SureCom NE34 Winbond + Holtek HT80232 Holtek HT80229 + + To compile this driver as a module, choose M here. The module + will be called ne2k-pci. + +config APNE + tristate "PCMCIA NE2000 support" + depends on AMIGA_PCMCIA + select CRC32 + ---help--- + If you have a PCMCIA NE2000 compatible adapter, say Y. Otherwise, + say N. + + To compile this driver as a module, choose M here: the module + will be called apne. + +config NE3210 + tristate "Novell/Eagle/Microdyne NE3210 EISA support (EXPERIMENTAL)" + depends on PCI && EISA && EXPERIMENTAL + select CRC32 + ---help--- + If you have a network (Ethernet) card of this type, say Y and read + the Ethernet-HOWTO, available from + <http://www.tldp.org/docs.html#howto>. Note that this driver + will NOT WORK for NE3200 cards as they are completely different. + + To compile this driver as a module, choose M here. The module + will be called ne3210. + +config PCMCIA_PCNET + tristate "NE2000 compatible PCMCIA support" + depends on PCMCIA + select CRC32 + ---help--- + Say Y here if you intend to attach an NE2000 compatible PCMCIA + (PC-card) Ethernet or Fast Ethernet card to your computer. + + To compile this driver as a module, choose M here: the module will be + called pcnet_cs. If unsure, say N. + +config NE_H8300 + tristate "NE2000 compatible support for H8/300" + depends on H8300 + ---help--- + Say Y here if you want to use the NE2000 compatible + controller on the Renesas H8/300 processor. + +config STNIC + tristate "National DP83902AV support" + depends on SUPERH + select CRC32 + ---help--- + Support for cards based on the National Semiconductor DP83902AV + ST-NIC Serial Network Interface Controller for Twisted Pair. This + is a 10Mbit/sec Ethernet controller. Product overview and specs at + <http://www.national.com/pf/DP/DP83902A.html>. + + If unsure, say N. + +config NET_VENDOR_SMC + bool "Western Digital/SMC cards" + depends on (ISA || MCA || EISA || MAC) + ---help--- + If you have a network (Ethernet) card belonging to this class, say Y + and read the Ethernet-HOWTO, available from + <http://www.tldp.org/docs.html#howto>. + + Note that the answer to this question doesn't directly affect the + kernel: saying N will just cause the configurator to skip all + the questions about Western Digital cards. If you say Y, you will be + asked for your specific card in the following questions. + +config ULTRAMCA + tristate "SMC Ultra MCA support" + depends on NET_VENDOR_SMC && MCA + select CRC32 + ---help--- + If you have a network (Ethernet) card of this type and are running + an MCA based system (PS/2), say Y and read the Ethernet-HOWTO, + available from <http://www.tldp.org/docs.html#howto>. + + To compile this driver as a module, choose M here. The module + will be called smc-mca. + +config ULTRA + tristate "SMC Ultra support" + depends on NET_VENDOR_SMC && ISA + select CRC32 + ---help--- + If you have a network (Ethernet) card of this type, say Y and read + the Ethernet-HOWTO, available from + <http://www.tldp.org/docs.html#howto>. + + Important: There have been many reports that, with some motherboards + mixing an SMC Ultra and an Adaptec AHA154x SCSI card (or compatible, + such as some BusLogic models) causes corruption problems with many + operating systems. The Linux smc-ultra driver has a work-around for + this but keep it in mind if you have such a SCSI card and have + problems. + + To compile this driver as a module, choose M here. The module + will be called smc-ultra. + +config ULTRA32 + tristate "SMC Ultra32 EISA support" + depends on NET_VENDOR_SMC && EISA + select CRC32 + ---help--- + If you have a network (Ethernet) card of this type, say Y and read + the Ethernet-HOWTO, available from + <http://www.tldp.org/docs.html#howto>. + + To compile this driver as a module, choose M here. The module + will be called smc-ultra32. + +config WD80x3 + tristate "WD80*3 support" + depends on NET_VENDOR_SMC && ISA + select CRC32 + ---help--- + If you have a network (Ethernet) card of this type, say Y and read + the Ethernet-HOWTO, available from + <http://www.tldp.org/docs.html#howto>. + + To compile this driver as a module, choose M here. The module + will be called wd. + +config ZORRO8390 + tristate "Zorro NS8390-based Ethernet support" + depends on ZORRO + select CRC32 + ---help--- + This driver is for Zorro Ethernet cards using an NS8390-compatible + chipset, like the Village Tronic Ariadne II and the Individual + Computers X-Surf Ethernet cards. If you have such a card, say Y. + Otherwise, say N. + + To compile this driver as a module, choose M here: the module + will be called zorro8390. + +endif # NET_VENDOR_8390 diff --git a/drivers/net/ethernet/8390/Makefile b/drivers/net/ethernet/8390/Makefile new file mode 100644 index 000000000000..3337d7fb4344 --- /dev/null +++ b/drivers/net/ethernet/8390/Makefile @@ -0,0 +1,29 @@ +# +# Makefile for the 8390 network device drivers. +# + +obj-$(CONFIG_MAC8390) += mac8390.o +obj-$(CONFIG_AC3200) += ac3200.o 8390.o +obj-$(CONFIG_APNE) += apne.o 8390.o +obj-$(CONFIG_ARM_ETHERH) += etherh.o +obj-$(CONFIG_AX88796) += ax88796.o +obj-$(CONFIG_E2100) += e2100.o 8390.o +obj-$(CONFIG_EL2) += 3c503.o 8390p.o +obj-$(CONFIG_ES3210) += es3210.o 8390.o +obj-$(CONFIG_HPLAN_PLUS) += hp-plus.o 8390p.o +obj-$(CONFIG_HPLAN) += hp.o 8390p.o +obj-$(CONFIG_HYDRA) += hydra.o 8390.o +obj-$(CONFIG_LNE390) += lne390.o 8390.o +obj-$(CONFIG_NE2000) += ne.o 8390p.o +obj-$(CONFIG_NE2_MCA) += ne2.o 8390p.o +obj-$(CONFIG_NE2K_PCI) += ne2k-pci.o 8390.o +obj-$(CONFIG_NE3210) += ne3210.o 8390.o +obj-$(CONFIG_NE_H8300) += ne-h8300.o 8390.o +obj-$(CONFIG_PCMCIA_AXNET) += axnet_cs.o 8390.o +obj-$(CONFIG_PCMCIA_PCNET) += pcnet_cs.o 8390.o +obj-$(CONFIG_STNIC) += stnic.o 8390.o +obj-$(CONFIG_ULTRA) += smc-ultra.o 8390.o +obj-$(CONFIG_ULTRA32) += smc-ultra32.o 8390.o +obj-$(CONFIG_ULTRAMCA) += smc-mca.o 8390.o +obj-$(CONFIG_WD80x3) += wd.o 8390.o +obj-$(CONFIG_ZORRO8390) += zorro8390.o 8390.o diff --git a/drivers/net/ethernet/8390/ac3200.c b/drivers/net/ethernet/8390/ac3200.c new file mode 100644 index 000000000000..f07b2e980fbc --- /dev/null +++ b/drivers/net/ethernet/8390/ac3200.c @@ -0,0 +1,432 @@ +/* ac3200.c: A driver for the Ansel Communications EISA ethernet adaptor. */ +/* + Written 1993, 1994 by Donald Becker. + Copyright 1993 United States Government as represented by the Director, + National Security Agency. This software may only be used and distributed + according to the terms of the GNU General Public License as modified by SRC, + incorporated herein by reference. + + The author may be reached as becker@scyld.com, or C/O + Scyld Computing Corporation + 410 Severn Ave., Suite 210 + Annapolis MD 21403 + + This is driver for the Ansel Communications Model 3200 EISA Ethernet LAN + Adapter. The programming information is from the users manual, as related + by glee@ardnassak.math.clemson.edu. + + Changelog: + + Paul Gortmaker 05/98 : add support for shared mem above 1MB. + + */ + +static const char version[] = + "ac3200.c:v1.01 7/1/94 Donald Becker (becker@cesdis.gsfc.nasa.gov)\n"; + +#include <linux/module.h> +#include <linux/eisa.h> +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/string.h> +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/init.h> +#include <linux/interrupt.h> + +#include <asm/system.h> +#include <asm/io.h> +#include <asm/irq.h> + +#include "8390.h" + +#define DRV_NAME "ac3200" + +/* Offsets from the base address. */ +#define AC_NIC_BASE 0x00 +#define AC_SA_PROM 0x16 /* The station address PROM. */ +#define AC_ADDR0 0x00 /* Prefix station address values. */ +#define AC_ADDR1 0x40 +#define AC_ADDR2 0x90 +#define AC_ID_PORT 0xC80 +#define AC_EISA_ID 0x0110d305 +#define AC_RESET_PORT 0xC84 +#define AC_RESET 0x00 +#define AC_ENABLE 0x01 +#define AC_CONFIG 0xC90 /* The configuration port. */ + +#define AC_IO_EXTENT 0x20 + /* Actually accessed is: + * AC_NIC_BASE (0-15) + * AC_SA_PROM (0-5) + * AC_ID_PORT (0-3) + * AC_RESET_PORT + * AC_CONFIG + */ + +/* Decoding of the configuration register. */ +static unsigned char config2irqmap[8] __initdata = {15, 12, 11, 10, 9, 7, 5, 3}; +static int addrmap[8] = +{0xFF0000, 0xFE0000, 0xFD0000, 0xFFF0000, 0xFFE0000, 0xFFC0000, 0xD0000, 0 }; +static const char *port_name[4] = { "10baseT", "invalid", "AUI", "10base2"}; + +#define config2irq(configval) config2irqmap[((configval) >> 3) & 7] +#define config2mem(configval) addrmap[(configval) & 7] +#define config2name(configval) port_name[((configval) >> 6) & 3] + +/* First and last 8390 pages. */ +#define AC_START_PG 0x00 /* First page of 8390 TX buffer */ +#define AC_STOP_PG 0x80 /* Last page +1 of the 8390 RX ring */ + +static int ac_probe1(int ioaddr, struct net_device *dev); + +static int ac_open(struct net_device *dev); +static void ac_reset_8390(struct net_device *dev); +static void ac_block_input(struct net_device *dev, int count, + struct sk_buff *skb, int ring_offset); +static void ac_block_output(struct net_device *dev, const int count, + const unsigned char *buf, const int start_page); +static void ac_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, + int ring_page); + +static int ac_close_card(struct net_device *dev); + + +/* Probe for the AC3200. + + The AC3200 can be identified by either the EISA configuration registers, + or the unique value in the station address PROM. + */ + +static int __init do_ac3200_probe(struct net_device *dev) +{ + unsigned short ioaddr = dev->base_addr; + int irq = dev->irq; + int mem_start = dev->mem_start; + + if (ioaddr > 0x1ff) /* Check a single specified location. */ + return ac_probe1(ioaddr, dev); + else if (ioaddr > 0) /* Don't probe at all. */ + return -ENXIO; + + if ( ! EISA_bus) + return -ENXIO; + + for (ioaddr = 0x1000; ioaddr < 0x9000; ioaddr += 0x1000) { + if (ac_probe1(ioaddr, dev) == 0) + return 0; + dev->irq = irq; + dev->mem_start = mem_start; + } + + return -ENODEV; +} + +#ifndef MODULE +struct net_device * __init ac3200_probe(int unit) +{ + struct net_device *dev = alloc_ei_netdev(); + int err; + + if (!dev) + return ERR_PTR(-ENOMEM); + + sprintf(dev->name, "eth%d", unit); + netdev_boot_setup_check(dev); + + err = do_ac3200_probe(dev); + if (err) + goto out; + return dev; +out: + free_netdev(dev); + return ERR_PTR(err); +} +#endif + +static const struct net_device_ops ac_netdev_ops = { + .ndo_open = ac_open, + .ndo_stop = ac_close_card, + + .ndo_start_xmit = ei_start_xmit, + .ndo_tx_timeout = ei_tx_timeout, + .ndo_get_stats = ei_get_stats, + .ndo_set_multicast_list = ei_set_multicast_list, + .ndo_validate_addr = eth_validate_addr, + .ndo_set_mac_address = eth_mac_addr, + .ndo_change_mtu = eth_change_mtu, +#ifdef CONFIG_NET_POLL_CONTROLLER + .ndo_poll_controller = ei_poll, +#endif +}; + +static int __init ac_probe1(int ioaddr, struct net_device *dev) +{ + int i, retval; + + if (!request_region(ioaddr, AC_IO_EXTENT, DRV_NAME)) + return -EBUSY; + + if (inb_p(ioaddr + AC_ID_PORT) == 0xff) { + retval = -ENODEV; + goto out; + } + + if (inl(ioaddr + AC_ID_PORT) != AC_EISA_ID) { + retval = -ENODEV; + goto out; + } + +#ifndef final_version + printk(KERN_DEBUG "AC3200 ethercard configuration register is %#02x," + " EISA ID %02x %02x %02x %02x.\n", inb(ioaddr + AC_CONFIG), + inb(ioaddr + AC_ID_PORT + 0), inb(ioaddr + AC_ID_PORT + 1), + inb(ioaddr + AC_ID_PORT + 2), inb(ioaddr + AC_ID_PORT + 3)); +#endif + + for (i = 0; i < 6; i++) + dev->dev_addr[i] = inb(ioaddr + AC_SA_PROM + i); + + printk(KERN_DEBUG "AC3200 in EISA slot %d, node %pM", + ioaddr/0x1000, dev->dev_addr); +#if 0 + /* Check the vendor ID/prefix. Redundant after checking the EISA ID */ + if (inb(ioaddr + AC_SA_PROM + 0) != AC_ADDR0 + || inb(ioaddr + AC_SA_PROM + 1) != AC_ADDR1 + || inb(ioaddr + AC_SA_PROM + 2) != AC_ADDR2 ) { + printk(", not found (invalid prefix).\n"); + retval = -ENODEV; + goto out; + } +#endif + + /* Assign and allocate the interrupt now. */ + if (dev->irq == 0) { + dev->irq = config2irq(inb(ioaddr + AC_CONFIG)); + printk(", using"); + } else { + dev->irq = irq_canonicalize(dev->irq); + printk(", assigning"); + } + + retval = request_irq(dev->irq, ei_interrupt, 0, DRV_NAME, dev); + if (retval) { + printk (" nothing! Unable to get IRQ %d.\n", dev->irq); + goto out; + } + + printk(" IRQ %d, %s port\n", dev->irq, port_name[dev->if_port]); + + dev->base_addr = ioaddr; + +#ifdef notyet + if (dev->mem_start) { /* Override the value from the board. */ + for (i = 0; i < 7; i++) + if (addrmap[i] == dev->mem_start) + break; + if (i >= 7) + i = 0; + outb((inb(ioaddr + AC_CONFIG) & ~7) | i, ioaddr + AC_CONFIG); + } +#endif + + dev->if_port = inb(ioaddr + AC_CONFIG) >> 6; + dev->mem_start = config2mem(inb(ioaddr + AC_CONFIG)); + + printk("%s: AC3200 at %#3x with %dkB memory at physical address %#lx.\n", + dev->name, ioaddr, AC_STOP_PG/4, dev->mem_start); + + /* + * BEWARE!! Some dain-bramaged EISA SCUs will allow you to put + * the card mem within the region covered by `normal' RAM !!! + * + * ioremap() will fail in that case. + */ + ei_status.mem = ioremap(dev->mem_start, AC_STOP_PG*0x100); + if (!ei_status.mem) { + printk(KERN_ERR "ac3200.c: Unable to remap card memory above 1MB !!\n"); + printk(KERN_ERR "ac3200.c: Try using EISA SCU to set memory below 1MB.\n"); + printk(KERN_ERR "ac3200.c: Driver NOT installed.\n"); + retval = -EINVAL; + goto out1; + } + printk("ac3200.c: remapped %dkB card memory to virtual address %p\n", + AC_STOP_PG/4, ei_status.mem); + + dev->mem_start = (unsigned long)ei_status.mem; + dev->mem_end = dev->mem_start + (AC_STOP_PG - AC_START_PG)*256; + + ei_status.name = "AC3200"; + ei_status.tx_start_page = AC_START_PG; + ei_status.rx_start_page = AC_START_PG + TX_PAGES; + ei_status.stop_page = AC_STOP_PG; + ei_status.word16 = 1; + + if (ei_debug > 0) + printk(version); + + ei_status.reset_8390 = &ac_reset_8390; + ei_status.block_input = &ac_block_input; + ei_status.block_output = &ac_block_output; + ei_status.get_8390_hdr = &ac_get_8390_hdr; + + dev->netdev_ops = &ac_netdev_ops; + NS8390_init(dev, 0); + + retval = register_netdev(dev); + if (retval) + goto out2; + return 0; +out2: + if (ei_status.reg0) + iounmap(ei_status.mem); +out1: + free_irq(dev->irq, dev); +out: + release_region(ioaddr, AC_IO_EXTENT); + return retval; +} + +static int ac_open(struct net_device *dev) +{ +#ifdef notyet + /* Someday we may enable the IRQ and shared memory here. */ + int ioaddr = dev->base_addr; +#endif + + ei_open(dev); + return 0; +} + +static void ac_reset_8390(struct net_device *dev) +{ + ushort ioaddr = dev->base_addr; + + outb(AC_RESET, ioaddr + AC_RESET_PORT); + if (ei_debug > 1) printk("resetting AC3200, t=%ld...", jiffies); + + ei_status.txing = 0; + outb(AC_ENABLE, ioaddr + AC_RESET_PORT); + if (ei_debug > 1) printk("reset done\n"); +} + +/* Grab the 8390 specific header. Similar to the block_input routine, but + we don't need to be concerned with ring wrap as the header will be at + the start of a page, so we optimize accordingly. */ + +static void +ac_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page) +{ + void __iomem *hdr_start = ei_status.mem + ((ring_page - AC_START_PG)<<8); + memcpy_fromio(hdr, hdr_start, sizeof(struct e8390_pkt_hdr)); +} + +/* Block input and output are easy on shared memory ethercards, the only + complication is when the ring buffer wraps. */ + +static void ac_block_input(struct net_device *dev, int count, struct sk_buff *skb, + int ring_offset) +{ + void __iomem *start = ei_status.mem + ring_offset - AC_START_PG*256; + + if (ring_offset + count > AC_STOP_PG*256) { + /* We must wrap the input move. */ + int semi_count = AC_STOP_PG*256 - ring_offset; + memcpy_fromio(skb->data, start, semi_count); + count -= semi_count; + memcpy_fromio(skb->data + semi_count, + ei_status.mem + TX_PAGES*256, count); + } else { + memcpy_fromio(skb->data, start, count); + } +} + +static void ac_block_output(struct net_device *dev, int count, + const unsigned char *buf, int start_page) +{ + void __iomem *shmem = ei_status.mem + ((start_page - AC_START_PG)<<8); + + memcpy_toio(shmem, buf, count); +} + +static int ac_close_card(struct net_device *dev) +{ + if (ei_debug > 1) + printk("%s: Shutting down ethercard.\n", dev->name); + +#ifdef notyet + /* We should someday disable shared memory and interrupts. */ + outb(0x00, ioaddr + 6); /* Disable interrupts. */ + free_irq(dev->irq, dev); +#endif + + ei_close(dev); + return 0; +} + +#ifdef MODULE +#define MAX_AC32_CARDS 4 /* Max number of AC32 cards per module */ +static struct net_device *dev_ac32[MAX_AC32_CARDS]; +static int io[MAX_AC32_CARDS]; +static int irq[MAX_AC32_CARDS]; +static int mem[MAX_AC32_CARDS]; +module_param_array(io, int, NULL, 0); +module_param_array(irq, int, NULL, 0); +module_param_array(mem, int, NULL, 0); +MODULE_PARM_DESC(io, "I/O base address(es)"); +MODULE_PARM_DESC(irq, "IRQ number(s)"); +MODULE_PARM_DESC(mem, "Memory base address(es)"); +MODULE_DESCRIPTION("Ansel AC3200 EISA ethernet driver"); +MODULE_LICENSE("GPL"); + +static int __init ac3200_module_init(void) +{ + struct net_device *dev; + int this_dev, found = 0; + + for (this_dev = 0; this_dev < MAX_AC32_CARDS; this_dev++) { + if (io[this_dev] == 0 && this_dev != 0) + break; + dev = alloc_ei_netdev(); + if (!dev) + break; + dev->irq = irq[this_dev]; + dev->base_addr = io[this_dev]; + dev->mem_start = mem[this_dev]; /* Currently ignored by driver */ + if (do_ac3200_probe(dev) == 0) { + dev_ac32[found++] = dev; + continue; + } + free_netdev(dev); + printk(KERN_WARNING "ac3200.c: No ac3200 card found (i/o = 0x%x).\n", io[this_dev]); + break; + } + if (found) + return 0; + return -ENXIO; +} + +static void cleanup_card(struct net_device *dev) +{ + /* Someday free_irq may be in ac_close_card() */ + free_irq(dev->irq, dev); + release_region(dev->base_addr, AC_IO_EXTENT); + iounmap(ei_status.mem); +} + +static void __exit ac3200_module_exit(void) +{ + int this_dev; + + for (this_dev = 0; this_dev < MAX_AC32_CARDS; this_dev++) { + struct net_device *dev = dev_ac32[this_dev]; + if (dev) { + unregister_netdev(dev); + cleanup_card(dev); + free_netdev(dev); + } + } +} +module_init(ac3200_module_init); +module_exit(ac3200_module_exit); +#endif /* MODULE */ diff --git a/drivers/net/ethernet/8390/apne.c b/drivers/net/ethernet/8390/apne.c new file mode 100644 index 000000000000..547737340cbb --- /dev/null +++ b/drivers/net/ethernet/8390/apne.c @@ -0,0 +1,620 @@ +/* + * Amiga Linux/68k 8390 based PCMCIA Ethernet Driver for the Amiga 1200 + * + * (C) Copyright 1997 Alain Malek + * (Alain.Malek@cryogen.com) + * + * ---------------------------------------------------------------------------- + * + * This program is based on + * + * ne.c: A general non-shared-memory NS8390 ethernet driver for linux + * Written 1992-94 by Donald Becker. + * + * 8390.c: A general NS8390 ethernet driver core for linux. + * Written 1992-94 by Donald Becker. + * + * cnetdevice: A Sana-II ethernet driver for AmigaOS + * Written by Bruce Abbott (bhabbott@inhb.co.nz) + * + * ---------------------------------------------------------------------------- + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of the Linux + * distribution for more details. + * + * ---------------------------------------------------------------------------- + * + */ + + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/pci.h> +#include <linux/init.h> +#include <linux/delay.h> +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/interrupt.h> +#include <linux/jiffies.h> + +#include <asm/system.h> +#include <asm/io.h> +#include <asm/setup.h> +#include <asm/amigaints.h> +#include <asm/amigahw.h> +#include <asm/amigayle.h> +#include <asm/amipcmcia.h> + +#include "8390.h" + +/* ---- No user-serviceable parts below ---- */ + +#define DRV_NAME "apne" + +#define NE_BASE (dev->base_addr) +#define NE_CMD 0x00 +#define NE_DATAPORT 0x10 /* NatSemi-defined port window offset. */ +#define NE_RESET 0x1f /* Issue a read to reset, a write to clear. */ +#define NE_IO_EXTENT 0x20 + +#define NE_EN0_ISR 0x07 +#define NE_EN0_DCFG 0x0e + +#define NE_EN0_RSARLO 0x08 +#define NE_EN0_RSARHI 0x09 +#define NE_EN0_RCNTLO 0x0a +#define NE_EN0_RXCR 0x0c +#define NE_EN0_TXCR 0x0d +#define NE_EN0_RCNTHI 0x0b +#define NE_EN0_IMR 0x0f + +#define NE1SM_START_PG 0x20 /* First page of TX buffer */ +#define NE1SM_STOP_PG 0x40 /* Last page +1 of RX ring */ +#define NESM_START_PG 0x40 /* First page of TX buffer */ +#define NESM_STOP_PG 0x80 /* Last page +1 of RX ring */ + + +struct net_device * __init apne_probe(int unit); +static int apne_probe1(struct net_device *dev, int ioaddr); + +static void apne_reset_8390(struct net_device *dev); +static void apne_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, + int ring_page); +static void apne_block_input(struct net_device *dev, int count, + struct sk_buff *skb, int ring_offset); +static void apne_block_output(struct net_device *dev, const int count, + const unsigned char *buf, const int start_page); +static irqreturn_t apne_interrupt(int irq, void *dev_id); + +static int init_pcmcia(void); + +/* IO base address used for nic */ + +#define IOBASE 0x300 + +/* + use MANUAL_CONFIG and MANUAL_OFFSET for enabling IO by hand + you can find the values to use by looking at the cnet.device + config file example (the default values are for the CNET40BC card) +*/ + +/* +#define MANUAL_CONFIG 0x20 +#define MANUAL_OFFSET 0x3f8 + +#define MANUAL_HWADDR0 0x00 +#define MANUAL_HWADDR1 0x12 +#define MANUAL_HWADDR2 0x34 +#define MANUAL_HWADDR3 0x56 +#define MANUAL_HWADDR4 0x78 +#define MANUAL_HWADDR5 0x9a +*/ + +static const char version[] = + "apne.c:v1.1 7/10/98 Alain Malek (Alain.Malek@cryogen.ch)\n"; + +static int apne_owned; /* signal if card already owned */ + +struct net_device * __init apne_probe(int unit) +{ + struct net_device *dev; +#ifndef MANUAL_CONFIG + char tuple[8]; +#endif + int err; + + if (!MACH_IS_AMIGA) + return ERR_PTR(-ENODEV); + + if (apne_owned) + return ERR_PTR(-ENODEV); + + if ( !(AMIGAHW_PRESENT(PCMCIA)) ) + return ERR_PTR(-ENODEV); + + printk("Looking for PCMCIA ethernet card : "); + + /* check if a card is inserted */ + if (!(PCMCIA_INSERTED)) { + printk("NO PCMCIA card inserted\n"); + return ERR_PTR(-ENODEV); + } + + dev = alloc_ei_netdev(); + if (!dev) + return ERR_PTR(-ENOMEM); + if (unit >= 0) { + sprintf(dev->name, "eth%d", unit); + netdev_boot_setup_check(dev); + } + + /* disable pcmcia irq for readtuple */ + pcmcia_disable_irq(); + +#ifndef MANUAL_CONFIG + if ((pcmcia_copy_tuple(CISTPL_FUNCID, tuple, 8) < 3) || + (tuple[2] != CISTPL_FUNCID_NETWORK)) { + printk("not an ethernet card\n"); + /* XXX: shouldn't we re-enable irq here? */ + free_netdev(dev); + return ERR_PTR(-ENODEV); + } +#endif + + printk("ethernet PCMCIA card inserted\n"); + + if (!init_pcmcia()) { + /* XXX: shouldn't we re-enable irq here? */ + free_netdev(dev); + return ERR_PTR(-ENODEV); + } + + if (!request_region(IOBASE, 0x20, DRV_NAME)) { + free_netdev(dev); + return ERR_PTR(-EBUSY); + } + + err = apne_probe1(dev, IOBASE); + if (err) { + release_region(IOBASE, 0x20); + free_netdev(dev); + return ERR_PTR(err); + } + err = register_netdev(dev); + if (!err) + return dev; + + pcmcia_disable_irq(); + free_irq(IRQ_AMIGA_PORTS, dev); + pcmcia_reset(); + release_region(IOBASE, 0x20); + free_netdev(dev); + return ERR_PTR(err); +} + +static int __init apne_probe1(struct net_device *dev, int ioaddr) +{ + int i; + unsigned char SA_prom[32]; + int wordlength = 2; + const char *name = NULL; + int start_page, stop_page; +#ifndef MANUAL_HWADDR0 + int neX000, ctron; +#endif + static unsigned version_printed; + + if (ei_debug && version_printed++ == 0) + printk(version); + + printk("PCMCIA NE*000 ethercard probe"); + + /* Reset card. Who knows what dain-bramaged state it was left in. */ + { unsigned long reset_start_time = jiffies; + + outb(inb(ioaddr + NE_RESET), ioaddr + NE_RESET); + + while ((inb(ioaddr + NE_EN0_ISR) & ENISR_RESET) == 0) + if (time_after(jiffies, reset_start_time + 2*HZ/100)) { + printk(" not found (no reset ack).\n"); + return -ENODEV; + } + + outb(0xff, ioaddr + NE_EN0_ISR); /* Ack all intr. */ + } + +#ifndef MANUAL_HWADDR0 + + /* Read the 16 bytes of station address PROM. + We must first initialize registers, similar to NS8390_init(eifdev, 0). + We can't reliably read the SAPROM address without this. + (I learned the hard way!). */ + { + struct {unsigned long value, offset; } program_seq[] = { + {E8390_NODMA+E8390_PAGE0+E8390_STOP, NE_CMD}, /* Select page 0*/ + {0x48, NE_EN0_DCFG}, /* Set byte-wide (0x48) access. */ + {0x00, NE_EN0_RCNTLO}, /* Clear the count regs. */ + {0x00, NE_EN0_RCNTHI}, + {0x00, NE_EN0_IMR}, /* Mask completion irq. */ + {0xFF, NE_EN0_ISR}, + {E8390_RXOFF, NE_EN0_RXCR}, /* 0x20 Set to monitor */ + {E8390_TXOFF, NE_EN0_TXCR}, /* 0x02 and loopback mode. */ + {32, NE_EN0_RCNTLO}, + {0x00, NE_EN0_RCNTHI}, + {0x00, NE_EN0_RSARLO}, /* DMA starting at 0x0000. */ + {0x00, NE_EN0_RSARHI}, + {E8390_RREAD+E8390_START, NE_CMD}, + }; + for (i = 0; i < ARRAY_SIZE(program_seq); i++) { + outb(program_seq[i].value, ioaddr + program_seq[i].offset); + } + + } + for(i = 0; i < 32 /*sizeof(SA_prom)*/; i+=2) { + SA_prom[i] = inb(ioaddr + NE_DATAPORT); + SA_prom[i+1] = inb(ioaddr + NE_DATAPORT); + if (SA_prom[i] != SA_prom[i+1]) + wordlength = 1; + } + + /* At this point, wordlength *only* tells us if the SA_prom is doubled + up or not because some broken PCI cards don't respect the byte-wide + request in program_seq above, and hence don't have doubled up values. + These broken cards would otherwise be detected as an ne1000. */ + + if (wordlength == 2) + for (i = 0; i < 16; i++) + SA_prom[i] = SA_prom[i+i]; + + if (wordlength == 2) { + /* We must set the 8390 for word mode. */ + outb(0x49, ioaddr + NE_EN0_DCFG); + start_page = NESM_START_PG; + stop_page = NESM_STOP_PG; + } else { + start_page = NE1SM_START_PG; + stop_page = NE1SM_STOP_PG; + } + + neX000 = (SA_prom[14] == 0x57 && SA_prom[15] == 0x57); + ctron = (SA_prom[0] == 0x00 && SA_prom[1] == 0x00 && SA_prom[2] == 0x1d); + + /* Set up the rest of the parameters. */ + if (neX000) { + name = (wordlength == 2) ? "NE2000" : "NE1000"; + } else if (ctron) { + name = (wordlength == 2) ? "Ctron-8" : "Ctron-16"; + start_page = 0x01; + stop_page = (wordlength == 2) ? 0x40 : 0x20; + } else { + printk(" not found.\n"); + return -ENXIO; + + } + +#else + wordlength = 2; + /* We must set the 8390 for word mode. */ + outb(0x49, ioaddr + NE_EN0_DCFG); + start_page = NESM_START_PG; + stop_page = NESM_STOP_PG; + + SA_prom[0] = MANUAL_HWADDR0; + SA_prom[1] = MANUAL_HWADDR1; + SA_prom[2] = MANUAL_HWADDR2; + SA_prom[3] = MANUAL_HWADDR3; + SA_prom[4] = MANUAL_HWADDR4; + SA_prom[5] = MANUAL_HWADDR5; + name = "NE2000"; +#endif + + dev->base_addr = ioaddr; + dev->irq = IRQ_AMIGA_PORTS; + dev->netdev_ops = &ei_netdev_ops; + + /* Install the Interrupt handler */ + i = request_irq(dev->irq, apne_interrupt, IRQF_SHARED, DRV_NAME, dev); + if (i) return i; + + for(i = 0; i < ETHER_ADDR_LEN; i++) + dev->dev_addr[i] = SA_prom[i]; + + printk(" %pM\n", dev->dev_addr); + + printk("%s: %s found.\n", dev->name, name); + + ei_status.name = name; + ei_status.tx_start_page = start_page; + ei_status.stop_page = stop_page; + ei_status.word16 = (wordlength == 2); + + ei_status.rx_start_page = start_page + TX_PAGES; + + ei_status.reset_8390 = &apne_reset_8390; + ei_status.block_input = &apne_block_input; + ei_status.block_output = &apne_block_output; + ei_status.get_8390_hdr = &apne_get_8390_hdr; + + NS8390_init(dev, 0); + + pcmcia_ack_int(pcmcia_get_intreq()); /* ack PCMCIA int req */ + pcmcia_enable_irq(); + + apne_owned = 1; + + return 0; +} + +/* Hard reset the card. This used to pause for the same period that a + 8390 reset command required, but that shouldn't be necessary. */ +static void +apne_reset_8390(struct net_device *dev) +{ + unsigned long reset_start_time = jiffies; + + init_pcmcia(); + + if (ei_debug > 1) printk("resetting the 8390 t=%ld...", jiffies); + + outb(inb(NE_BASE + NE_RESET), NE_BASE + NE_RESET); + + ei_status.txing = 0; + ei_status.dmaing = 0; + + /* This check _should_not_ be necessary, omit eventually. */ + while ((inb(NE_BASE+NE_EN0_ISR) & ENISR_RESET) == 0) + if (time_after(jiffies, reset_start_time + 2*HZ/100)) { + printk("%s: ne_reset_8390() did not complete.\n", dev->name); + break; + } + outb(ENISR_RESET, NE_BASE + NE_EN0_ISR); /* Ack intr. */ +} + +/* Grab the 8390 specific header. Similar to the block_input routine, but + we don't need to be concerned with ring wrap as the header will be at + the start of a page, so we optimize accordingly. */ + +static void +apne_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page) +{ + + int nic_base = dev->base_addr; + int cnt; + char *ptrc; + short *ptrs; + + /* This *shouldn't* happen. If it does, it's the last thing you'll see */ + if (ei_status.dmaing) { + printk("%s: DMAing conflict in ne_get_8390_hdr " + "[DMAstat:%d][irqlock:%d][intr:%d].\n", + dev->name, ei_status.dmaing, ei_status.irqlock, dev->irq); + return; + } + + ei_status.dmaing |= 0x01; + outb(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base+ NE_CMD); + outb(ENISR_RDC, nic_base + NE_EN0_ISR); + outb(sizeof(struct e8390_pkt_hdr), nic_base + NE_EN0_RCNTLO); + outb(0, nic_base + NE_EN0_RCNTHI); + outb(0, nic_base + NE_EN0_RSARLO); /* On page boundary */ + outb(ring_page, nic_base + NE_EN0_RSARHI); + outb(E8390_RREAD+E8390_START, nic_base + NE_CMD); + + if (ei_status.word16) { + ptrs = (short*)hdr; + for(cnt = 0; cnt < (sizeof(struct e8390_pkt_hdr)>>1); cnt++) + *ptrs++ = inw(NE_BASE + NE_DATAPORT); + } else { + ptrc = (char*)hdr; + for(cnt = 0; cnt < sizeof(struct e8390_pkt_hdr); cnt++) + *ptrc++ = inb(NE_BASE + NE_DATAPORT); + } + + outb(ENISR_RDC, nic_base + NE_EN0_ISR); /* Ack intr. */ + ei_status.dmaing &= ~0x01; + + le16_to_cpus(&hdr->count); +} + +/* Block input and output, similar to the Crynwr packet driver. If you + are porting to a new ethercard, look at the packet driver source for hints. + The NEx000 doesn't share the on-board packet memory -- you have to put + the packet out through the "remote DMA" dataport using outb. */ + +static void +apne_block_input(struct net_device *dev, int count, struct sk_buff *skb, int ring_offset) +{ + int nic_base = dev->base_addr; + char *buf = skb->data; + char *ptrc; + short *ptrs; + int cnt; + + /* This *shouldn't* happen. If it does, it's the last thing you'll see */ + if (ei_status.dmaing) { + printk("%s: DMAing conflict in ne_block_input " + "[DMAstat:%d][irqlock:%d][intr:%d].\n", + dev->name, ei_status.dmaing, ei_status.irqlock, dev->irq); + return; + } + ei_status.dmaing |= 0x01; + outb(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base+ NE_CMD); + outb(ENISR_RDC, nic_base + NE_EN0_ISR); + outb(count & 0xff, nic_base + NE_EN0_RCNTLO); + outb(count >> 8, nic_base + NE_EN0_RCNTHI); + outb(ring_offset & 0xff, nic_base + NE_EN0_RSARLO); + outb(ring_offset >> 8, nic_base + NE_EN0_RSARHI); + outb(E8390_RREAD+E8390_START, nic_base + NE_CMD); + if (ei_status.word16) { + ptrs = (short*)buf; + for (cnt = 0; cnt < (count>>1); cnt++) + *ptrs++ = inw(NE_BASE + NE_DATAPORT); + if (count & 0x01) { + buf[count-1] = inb(NE_BASE + NE_DATAPORT); + } + } else { + ptrc = (char*)buf; + for (cnt = 0; cnt < count; cnt++) + *ptrc++ = inb(NE_BASE + NE_DATAPORT); + } + + outb(ENISR_RDC, nic_base + NE_EN0_ISR); /* Ack intr. */ + ei_status.dmaing &= ~0x01; +} + +static void +apne_block_output(struct net_device *dev, int count, + const unsigned char *buf, const int start_page) +{ + int nic_base = NE_BASE; + unsigned long dma_start; + char *ptrc; + short *ptrs; + int cnt; + + /* Round the count up for word writes. Do we need to do this? + What effect will an odd byte count have on the 8390? + I should check someday. */ + if (ei_status.word16 && (count & 0x01)) + count++; + + /* This *shouldn't* happen. If it does, it's the last thing you'll see */ + if (ei_status.dmaing) { + printk("%s: DMAing conflict in ne_block_output." + "[DMAstat:%d][irqlock:%d][intr:%d]\n", + dev->name, ei_status.dmaing, ei_status.irqlock, dev->irq); + return; + } + ei_status.dmaing |= 0x01; + /* We should already be in page 0, but to be safe... */ + outb(E8390_PAGE0+E8390_START+E8390_NODMA, nic_base + NE_CMD); + + outb(ENISR_RDC, nic_base + NE_EN0_ISR); + + /* Now the normal output. */ + outb(count & 0xff, nic_base + NE_EN0_RCNTLO); + outb(count >> 8, nic_base + NE_EN0_RCNTHI); + outb(0x00, nic_base + NE_EN0_RSARLO); + outb(start_page, nic_base + NE_EN0_RSARHI); + + outb(E8390_RWRITE+E8390_START, nic_base + NE_CMD); + if (ei_status.word16) { + ptrs = (short*)buf; + for (cnt = 0; cnt < count>>1; cnt++) + outw(*ptrs++, NE_BASE+NE_DATAPORT); + } else { + ptrc = (char*)buf; + for (cnt = 0; cnt < count; cnt++) + outb(*ptrc++, NE_BASE + NE_DATAPORT); + } + + dma_start = jiffies; + + while ((inb(NE_BASE + NE_EN0_ISR) & ENISR_RDC) == 0) + if (time_after(jiffies, dma_start + 2*HZ/100)) { /* 20ms */ + printk("%s: timeout waiting for Tx RDC.\n", dev->name); + apne_reset_8390(dev); + NS8390_init(dev,1); + break; + } + + outb(ENISR_RDC, nic_base + NE_EN0_ISR); /* Ack intr. */ + ei_status.dmaing &= ~0x01; +} + +static irqreturn_t apne_interrupt(int irq, void *dev_id) +{ + unsigned char pcmcia_intreq; + + if (!(gayle.inten & GAYLE_IRQ_IRQ)) + return IRQ_NONE; + + pcmcia_intreq = pcmcia_get_intreq(); + + if (!(pcmcia_intreq & GAYLE_IRQ_IRQ)) { + pcmcia_ack_int(pcmcia_intreq); + return IRQ_NONE; + } + if (ei_debug > 3) + printk("pcmcia intreq = %x\n", pcmcia_intreq); + pcmcia_disable_irq(); /* to get rid of the sti() within ei_interrupt */ + ei_interrupt(irq, dev_id); + pcmcia_ack_int(pcmcia_get_intreq()); + pcmcia_enable_irq(); + return IRQ_HANDLED; +} + +#ifdef MODULE +static struct net_device *apne_dev; + +static int __init apne_module_init(void) +{ + apne_dev = apne_probe(-1); + if (IS_ERR(apne_dev)) + return PTR_ERR(apne_dev); + return 0; +} + +static void __exit apne_module_exit(void) +{ + unregister_netdev(apne_dev); + + pcmcia_disable_irq(); + + free_irq(IRQ_AMIGA_PORTS, apne_dev); + + pcmcia_reset(); + + release_region(IOBASE, 0x20); + + free_netdev(apne_dev); +} +module_init(apne_module_init); +module_exit(apne_module_exit); +#endif + +static int init_pcmcia(void) +{ + u_char config; +#ifndef MANUAL_CONFIG + u_char tuple[32]; + int offset_len; +#endif + u_long offset; + + pcmcia_reset(); + pcmcia_program_voltage(PCMCIA_0V); + pcmcia_access_speed(PCMCIA_SPEED_250NS); + pcmcia_write_enable(); + +#ifdef MANUAL_CONFIG + config = MANUAL_CONFIG; +#else + /* get and write config byte to enable IO port */ + + if (pcmcia_copy_tuple(CISTPL_CFTABLE_ENTRY, tuple, 32) < 3) + return 0; + + config = tuple[2] & 0x3f; +#endif +#ifdef MANUAL_OFFSET + offset = MANUAL_OFFSET; +#else + if (pcmcia_copy_tuple(CISTPL_CONFIG, tuple, 32) < 6) + return 0; + + offset_len = (tuple[2] & 0x3) + 1; + offset = 0; + while(offset_len--) { + offset = (offset << 8) | tuple[4+offset_len]; + } +#endif + + out_8(GAYLE_ATTRIBUTE+offset, config); + + return 1; +} + +MODULE_LICENSE("GPL"); diff --git a/drivers/net/ethernet/8390/ax88796.c b/drivers/net/ethernet/8390/ax88796.c new file mode 100644 index 000000000000..e7cb8c8b9776 --- /dev/null +++ b/drivers/net/ethernet/8390/ax88796.c @@ -0,0 +1,1010 @@ +/* drivers/net/ax88796.c + * + * Copyright 2005,2007 Simtec Electronics + * Ben Dooks <ben@simtec.co.uk> + * + * Asix AX88796 10/100 Ethernet controller support + * Based on ne.c, by Donald Becker, et-al. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/isapnp.h> +#include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/io.h> +#include <linux/platform_device.h> +#include <linux/delay.h> +#include <linux/timer.h> +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/ethtool.h> +#include <linux/mdio-bitbang.h> +#include <linux/phy.h> +#include <linux/eeprom_93cx6.h> +#include <linux/slab.h> + +#include <net/ax88796.h> + +#include <asm/system.h> + +/* Rename the lib8390.c functions to show that they are in this driver */ +#define __ei_open ax_ei_open +#define __ei_close ax_ei_close +#define __ei_poll ax_ei_poll +#define __ei_start_xmit ax_ei_start_xmit +#define __ei_tx_timeout ax_ei_tx_timeout +#define __ei_get_stats ax_ei_get_stats +#define __ei_set_multicast_list ax_ei_set_multicast_list +#define __ei_interrupt ax_ei_interrupt +#define ____alloc_ei_netdev ax__alloc_ei_netdev +#define __NS8390_init ax_NS8390_init + +/* force unsigned long back to 'void __iomem *' */ +#define ax_convert_addr(_a) ((void __force __iomem *)(_a)) + +#define ei_inb(_a) readb(ax_convert_addr(_a)) +#define ei_outb(_v, _a) writeb(_v, ax_convert_addr(_a)) + +#define ei_inb_p(_a) ei_inb(_a) +#define ei_outb_p(_v, _a) ei_outb(_v, _a) + +/* define EI_SHIFT() to take into account our register offsets */ +#define EI_SHIFT(x) (ei_local->reg_offset[(x)]) + +/* Ensure we have our RCR base value */ +#define AX88796_PLATFORM + +static unsigned char version[] = "ax88796.c: Copyright 2005,2007 Simtec Electronics\n"; + +#include "lib8390.c" + +#define DRV_NAME "ax88796" +#define DRV_VERSION "1.00" + +/* from ne.c */ +#define NE_CMD EI_SHIFT(0x00) +#define NE_RESET EI_SHIFT(0x1f) +#define NE_DATAPORT EI_SHIFT(0x10) + +#define NE1SM_START_PG 0x20 /* First page of TX buffer */ +#define NE1SM_STOP_PG 0x40 /* Last page +1 of RX ring */ +#define NESM_START_PG 0x40 /* First page of TX buffer */ +#define NESM_STOP_PG 0x80 /* Last page +1 of RX ring */ + +#define AX_GPOC_PPDSET BIT(6) + +/* device private data */ + +struct ax_device { + struct mii_bus *mii_bus; + struct mdiobb_ctrl bb_ctrl; + struct phy_device *phy_dev; + void __iomem *addr_memr; + u8 reg_memr; + int link; + int speed; + int duplex; + + void __iomem *map2; + const struct ax_plat_data *plat; + + unsigned char running; + unsigned char resume_open; + unsigned int irqflags; + + u32 reg_offsets[0x20]; +}; + +static inline struct ax_device *to_ax_dev(struct net_device *dev) +{ + struct ei_device *ei_local = netdev_priv(dev); + return (struct ax_device *)(ei_local + 1); +} + +/* + * ax_initial_check + * + * do an initial probe for the card to check wether it exists + * and is functional + */ +static int ax_initial_check(struct net_device *dev) +{ + struct ei_device *ei_local = netdev_priv(dev); + void __iomem *ioaddr = ei_local->mem; + int reg0; + int regd; + + reg0 = ei_inb(ioaddr); + if (reg0 == 0xFF) + return -ENODEV; + + ei_outb(E8390_NODMA + E8390_PAGE1 + E8390_STOP, ioaddr + E8390_CMD); + regd = ei_inb(ioaddr + 0x0d); + ei_outb(0xff, ioaddr + 0x0d); + ei_outb(E8390_NODMA + E8390_PAGE0, ioaddr + E8390_CMD); + ei_inb(ioaddr + EN0_COUNTER0); /* Clear the counter by reading. */ + if (ei_inb(ioaddr + EN0_COUNTER0) != 0) { + ei_outb(reg0, ioaddr); + ei_outb(regd, ioaddr + 0x0d); /* Restore the old values. */ + return -ENODEV; + } + + return 0; +} + +/* + * Hard reset the card. This used to pause for the same period that a + * 8390 reset command required, but that shouldn't be necessary. + */ +static void ax_reset_8390(struct net_device *dev) +{ + struct ei_device *ei_local = netdev_priv(dev); + unsigned long reset_start_time = jiffies; + void __iomem *addr = (void __iomem *)dev->base_addr; + + if (ei_debug > 1) + netdev_dbg(dev, "resetting the 8390 t=%ld\n", jiffies); + + ei_outb(ei_inb(addr + NE_RESET), addr + NE_RESET); + + ei_local->txing = 0; + ei_local->dmaing = 0; + + /* This check _should_not_ be necessary, omit eventually. */ + while ((ei_inb(addr + EN0_ISR) & ENISR_RESET) == 0) { + if (jiffies - reset_start_time > 2 * HZ / 100) { + netdev_warn(dev, "%s: did not complete.\n", __func__); + break; + } + } + + ei_outb(ENISR_RESET, addr + EN0_ISR); /* Ack intr. */ +} + + +static void ax_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, + int ring_page) +{ + struct ei_device *ei_local = netdev_priv(dev); + void __iomem *nic_base = ei_local->mem; + + /* This *shouldn't* happen. If it does, it's the last thing you'll see */ + if (ei_local->dmaing) { + netdev_err(dev, "DMAing conflict in %s " + "[DMAstat:%d][irqlock:%d].\n", + __func__, + ei_local->dmaing, ei_local->irqlock); + return; + } + + ei_local->dmaing |= 0x01; + ei_outb(E8390_NODMA + E8390_PAGE0 + E8390_START, nic_base + NE_CMD); + ei_outb(sizeof(struct e8390_pkt_hdr), nic_base + EN0_RCNTLO); + ei_outb(0, nic_base + EN0_RCNTHI); + ei_outb(0, nic_base + EN0_RSARLO); /* On page boundary */ + ei_outb(ring_page, nic_base + EN0_RSARHI); + ei_outb(E8390_RREAD+E8390_START, nic_base + NE_CMD); + + if (ei_local->word16) + readsw(nic_base + NE_DATAPORT, hdr, + sizeof(struct e8390_pkt_hdr) >> 1); + else + readsb(nic_base + NE_DATAPORT, hdr, + sizeof(struct e8390_pkt_hdr)); + + ei_outb(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */ + ei_local->dmaing &= ~0x01; + + le16_to_cpus(&hdr->count); +} + + +/* + * Block input and output, similar to the Crynwr packet driver. If + * you are porting to a new ethercard, look at the packet driver + * source for hints. The NEx000 doesn't share the on-board packet + * memory -- you have to put the packet out through the "remote DMA" + * dataport using ei_outb. + */ +static void ax_block_input(struct net_device *dev, int count, + struct sk_buff *skb, int ring_offset) +{ + struct ei_device *ei_local = netdev_priv(dev); + void __iomem *nic_base = ei_local->mem; + char *buf = skb->data; + + if (ei_local->dmaing) { + netdev_err(dev, + "DMAing conflict in %s " + "[DMAstat:%d][irqlock:%d].\n", + __func__, + ei_local->dmaing, ei_local->irqlock); + return; + } + + ei_local->dmaing |= 0x01; + + ei_outb(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base + NE_CMD); + ei_outb(count & 0xff, nic_base + EN0_RCNTLO); + ei_outb(count >> 8, nic_base + EN0_RCNTHI); + ei_outb(ring_offset & 0xff, nic_base + EN0_RSARLO); + ei_outb(ring_offset >> 8, nic_base + EN0_RSARHI); + ei_outb(E8390_RREAD+E8390_START, nic_base + NE_CMD); + + if (ei_local->word16) { + readsw(nic_base + NE_DATAPORT, buf, count >> 1); + if (count & 0x01) + buf[count-1] = ei_inb(nic_base + NE_DATAPORT); + + } else { + readsb(nic_base + NE_DATAPORT, buf, count); + } + + ei_local->dmaing &= ~1; +} + +static void ax_block_output(struct net_device *dev, int count, + const unsigned char *buf, const int start_page) +{ + struct ei_device *ei_local = netdev_priv(dev); + void __iomem *nic_base = ei_local->mem; + unsigned long dma_start; + + /* + * Round the count up for word writes. Do we need to do this? + * What effect will an odd byte count have on the 8390? I + * should check someday. + */ + if (ei_local->word16 && (count & 0x01)) + count++; + + /* This *shouldn't* happen. If it does, it's the last thing you'll see */ + if (ei_local->dmaing) { + netdev_err(dev, "DMAing conflict in %s." + "[DMAstat:%d][irqlock:%d]\n", + __func__, + ei_local->dmaing, ei_local->irqlock); + return; + } + + ei_local->dmaing |= 0x01; + /* We should already be in page 0, but to be safe... */ + ei_outb(E8390_PAGE0+E8390_START+E8390_NODMA, nic_base + NE_CMD); + + ei_outb(ENISR_RDC, nic_base + EN0_ISR); + + /* Now the normal output. */ + ei_outb(count & 0xff, nic_base + EN0_RCNTLO); + ei_outb(count >> 8, nic_base + EN0_RCNTHI); + ei_outb(0x00, nic_base + EN0_RSARLO); + ei_outb(start_page, nic_base + EN0_RSARHI); + + ei_outb(E8390_RWRITE+E8390_START, nic_base + NE_CMD); + if (ei_local->word16) + writesw(nic_base + NE_DATAPORT, buf, count >> 1); + else + writesb(nic_base + NE_DATAPORT, buf, count); + + dma_start = jiffies; + + while ((ei_inb(nic_base + EN0_ISR) & ENISR_RDC) == 0) { + if (jiffies - dma_start > 2 * HZ / 100) { /* 20ms */ + netdev_warn(dev, "timeout waiting for Tx RDC.\n"); + ax_reset_8390(dev); + ax_NS8390_init(dev, 1); + break; + } + } + + ei_outb(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */ + ei_local->dmaing &= ~0x01; +} + +/* definitions for accessing MII/EEPROM interface */ + +#define AX_MEMR EI_SHIFT(0x14) +#define AX_MEMR_MDC BIT(0) +#define AX_MEMR_MDIR BIT(1) +#define AX_MEMR_MDI BIT(2) +#define AX_MEMR_MDO BIT(3) +#define AX_MEMR_EECS BIT(4) +#define AX_MEMR_EEI BIT(5) +#define AX_MEMR_EEO BIT(6) +#define AX_MEMR_EECLK BIT(7) + +static void ax_handle_link_change(struct net_device *dev) +{ + struct ax_device *ax = to_ax_dev(dev); + struct phy_device *phy_dev = ax->phy_dev; + int status_change = 0; + + if (phy_dev->link && ((ax->speed != phy_dev->speed) || + (ax->duplex != phy_dev->duplex))) { + + ax->speed = phy_dev->speed; + ax->duplex = phy_dev->duplex; + status_change = 1; + } + + if (phy_dev->link != ax->link) { + if (!phy_dev->link) { + ax->speed = 0; + ax->duplex = -1; + } + ax->link = phy_dev->link; + + status_change = 1; + } + + if (status_change) + phy_print_status(phy_dev); +} + +static int ax_mii_probe(struct net_device *dev) +{ + struct ax_device *ax = to_ax_dev(dev); + struct phy_device *phy_dev = NULL; + int ret; + + /* find the first phy */ + phy_dev = phy_find_first(ax->mii_bus); + if (!phy_dev) { + netdev_err(dev, "no PHY found\n"); + return -ENODEV; + } + + ret = phy_connect_direct(dev, phy_dev, ax_handle_link_change, 0, + PHY_INTERFACE_MODE_MII); + if (ret) { + netdev_err(dev, "Could not attach to PHY\n"); + return ret; + } + + /* mask with MAC supported features */ + phy_dev->supported &= PHY_BASIC_FEATURES; + phy_dev->advertising = phy_dev->supported; + + ax->phy_dev = phy_dev; + + netdev_info(dev, "PHY driver [%s] (mii_bus:phy_addr=%s, irq=%d)\n", + phy_dev->drv->name, dev_name(&phy_dev->dev), phy_dev->irq); + + return 0; +} + +static void ax_phy_switch(struct net_device *dev, int on) +{ + struct ei_device *ei_local = netdev_priv(dev); + struct ax_device *ax = to_ax_dev(dev); + + u8 reg_gpoc = ax->plat->gpoc_val; + + if (!!on) + reg_gpoc &= ~AX_GPOC_PPDSET; + else + reg_gpoc |= AX_GPOC_PPDSET; + + ei_outb(reg_gpoc, ei_local->mem + EI_SHIFT(0x17)); +} + +static int ax_open(struct net_device *dev) +{ + struct ax_device *ax = to_ax_dev(dev); + int ret; + + netdev_dbg(dev, "open\n"); + + ret = request_irq(dev->irq, ax_ei_interrupt, ax->irqflags, + dev->name, dev); + if (ret) + goto failed_request_irq; + + /* turn the phy on (if turned off) */ + ax_phy_switch(dev, 1); + + ret = ax_mii_probe(dev); + if (ret) + goto failed_mii_probe; + phy_start(ax->phy_dev); + + ret = ax_ei_open(dev); + if (ret) + goto failed_ax_ei_open; + + ax->running = 1; + + return 0; + + failed_ax_ei_open: + phy_disconnect(ax->phy_dev); + failed_mii_probe: + ax_phy_switch(dev, 0); + free_irq(dev->irq, dev); + failed_request_irq: + return ret; +} + +static int ax_close(struct net_device *dev) +{ + struct ax_device *ax = to_ax_dev(dev); + + netdev_dbg(dev, "close\n"); + + ax->running = 0; + wmb(); + + ax_ei_close(dev); + + /* turn the phy off */ + ax_phy_switch(dev, 0); + phy_disconnect(ax->phy_dev); + + free_irq(dev->irq, dev); + return 0; +} + +static int ax_ioctl(struct net_device *dev, struct ifreq *req, int cmd) +{ + struct ax_device *ax = to_ax_dev(dev); + struct phy_device *phy_dev = ax->phy_dev; + + if (!netif_running(dev)) + return -EINVAL; + + if (!phy_dev) + return -ENODEV; + + return phy_mii_ioctl(phy_dev, req, cmd); +} + +/* ethtool ops */ + +static void ax_get_drvinfo(struct net_device *dev, + struct ethtool_drvinfo *info) +{ + struct platform_device *pdev = to_platform_device(dev->dev.parent); + + strcpy(info->driver, DRV_NAME); + strcpy(info->version, DRV_VERSION); + strcpy(info->bus_info, pdev->name); +} + +static int ax_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) +{ + struct ax_device *ax = to_ax_dev(dev); + struct phy_device *phy_dev = ax->phy_dev; + + if (!phy_dev) + return -ENODEV; + + return phy_ethtool_gset(phy_dev, cmd); +} + +static int ax_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) +{ + struct ax_device *ax = to_ax_dev(dev); + struct phy_device *phy_dev = ax->phy_dev; + + if (!phy_dev) + return -ENODEV; + + return phy_ethtool_sset(phy_dev, cmd); +} + +static const struct ethtool_ops ax_ethtool_ops = { + .get_drvinfo = ax_get_drvinfo, + .get_settings = ax_get_settings, + .set_settings = ax_set_settings, + .get_link = ethtool_op_get_link, +}; + +#ifdef CONFIG_AX88796_93CX6 +static void ax_eeprom_register_read(struct eeprom_93cx6 *eeprom) +{ + struct ei_device *ei_local = eeprom->data; + u8 reg = ei_inb(ei_local->mem + AX_MEMR); + + eeprom->reg_data_in = reg & AX_MEMR_EEI; + eeprom->reg_data_out = reg & AX_MEMR_EEO; /* Input pin */ + eeprom->reg_data_clock = reg & AX_MEMR_EECLK; + eeprom->reg_chip_select = reg & AX_MEMR_EECS; +} + +static void ax_eeprom_register_write(struct eeprom_93cx6 *eeprom) +{ + struct ei_device *ei_local = eeprom->data; + u8 reg = ei_inb(ei_local->mem + AX_MEMR); + + reg &= ~(AX_MEMR_EEI | AX_MEMR_EECLK | AX_MEMR_EECS); + + if (eeprom->reg_data_in) + reg |= AX_MEMR_EEI; + if (eeprom->reg_data_clock) + reg |= AX_MEMR_EECLK; + if (eeprom->reg_chip_select) + reg |= AX_MEMR_EECS; + + ei_outb(reg, ei_local->mem + AX_MEMR); + udelay(10); +} +#endif + +static const struct net_device_ops ax_netdev_ops = { + .ndo_open = ax_open, + .ndo_stop = ax_close, + .ndo_do_ioctl = ax_ioctl, + + .ndo_start_xmit = ax_ei_start_xmit, + .ndo_tx_timeout = ax_ei_tx_timeout, + .ndo_get_stats = ax_ei_get_stats, + .ndo_set_multicast_list = ax_ei_set_multicast_list, + .ndo_validate_addr = eth_validate_addr, + .ndo_set_mac_address = eth_mac_addr, + .ndo_change_mtu = eth_change_mtu, +#ifdef CONFIG_NET_POLL_CONTROLLER + .ndo_poll_controller = ax_ei_poll, +#endif +}; + +static void ax_bb_mdc(struct mdiobb_ctrl *ctrl, int level) +{ + struct ax_device *ax = container_of(ctrl, struct ax_device, bb_ctrl); + + if (level) + ax->reg_memr |= AX_MEMR_MDC; + else + ax->reg_memr &= ~AX_MEMR_MDC; + + ei_outb(ax->reg_memr, ax->addr_memr); +} + +static void ax_bb_dir(struct mdiobb_ctrl *ctrl, int output) +{ + struct ax_device *ax = container_of(ctrl, struct ax_device, bb_ctrl); + + if (output) + ax->reg_memr &= ~AX_MEMR_MDIR; + else + ax->reg_memr |= AX_MEMR_MDIR; + + ei_outb(ax->reg_memr, ax->addr_memr); +} + +static void ax_bb_set_data(struct mdiobb_ctrl *ctrl, int value) +{ + struct ax_device *ax = container_of(ctrl, struct ax_device, bb_ctrl); + + if (value) + ax->reg_memr |= AX_MEMR_MDO; + else + ax->reg_memr &= ~AX_MEMR_MDO; + + ei_outb(ax->reg_memr, ax->addr_memr); +} + +static int ax_bb_get_data(struct mdiobb_ctrl *ctrl) +{ + struct ax_device *ax = container_of(ctrl, struct ax_device, bb_ctrl); + int reg_memr = ei_inb(ax->addr_memr); + + return reg_memr & AX_MEMR_MDI ? 1 : 0; +} + +static struct mdiobb_ops bb_ops = { + .owner = THIS_MODULE, + .set_mdc = ax_bb_mdc, + .set_mdio_dir = ax_bb_dir, + .set_mdio_data = ax_bb_set_data, + .get_mdio_data = ax_bb_get_data, +}; + +/* setup code */ + +static int ax_mii_init(struct net_device *dev) +{ + struct platform_device *pdev = to_platform_device(dev->dev.parent); + struct ei_device *ei_local = netdev_priv(dev); + struct ax_device *ax = to_ax_dev(dev); + int err, i; + + ax->bb_ctrl.ops = &bb_ops; + ax->addr_memr = ei_local->mem + AX_MEMR; + ax->mii_bus = alloc_mdio_bitbang(&ax->bb_ctrl); + if (!ax->mii_bus) { + err = -ENOMEM; + goto out; + } + + ax->mii_bus->name = "ax88796_mii_bus"; + ax->mii_bus->parent = dev->dev.parent; + snprintf(ax->mii_bus->id, MII_BUS_ID_SIZE, "%x", pdev->id); + + ax->mii_bus->irq = kmalloc(sizeof(int) * PHY_MAX_ADDR, GFP_KERNEL); + if (!ax->mii_bus->irq) { + err = -ENOMEM; + goto out_free_mdio_bitbang; + } + + for (i = 0; i < PHY_MAX_ADDR; i++) + ax->mii_bus->irq[i] = PHY_POLL; + + err = mdiobus_register(ax->mii_bus); + if (err) + goto out_free_irq; + + return 0; + + out_free_irq: + kfree(ax->mii_bus->irq); + out_free_mdio_bitbang: + free_mdio_bitbang(ax->mii_bus); + out: + return err; +} + +static void ax_initial_setup(struct net_device *dev, struct ei_device *ei_local) +{ + void __iomem *ioaddr = ei_local->mem; + struct ax_device *ax = to_ax_dev(dev); + + /* Select page 0 */ + ei_outb(E8390_NODMA + E8390_PAGE0 + E8390_STOP, ioaddr + E8390_CMD); + + /* set to byte access */ + ei_outb(ax->plat->dcr_val & ~1, ioaddr + EN0_DCFG); + ei_outb(ax->plat->gpoc_val, ioaddr + EI_SHIFT(0x17)); +} + +/* + * ax_init_dev + * + * initialise the specified device, taking care to note the MAC + * address it may already have (if configured), ensure + * the device is ready to be used by lib8390.c and registerd with + * the network layer. + */ +static int ax_init_dev(struct net_device *dev) +{ + struct ei_device *ei_local = netdev_priv(dev); + struct ax_device *ax = to_ax_dev(dev); + void __iomem *ioaddr = ei_local->mem; + unsigned int start_page; + unsigned int stop_page; + int ret; + int i; + + ret = ax_initial_check(dev); + if (ret) + goto err_out; + + /* setup goes here */ + + ax_initial_setup(dev, ei_local); + + /* read the mac from the card prom if we need it */ + + if (ax->plat->flags & AXFLG_HAS_EEPROM) { + unsigned char SA_prom[32]; + + for (i = 0; i < sizeof(SA_prom); i += 2) { + SA_prom[i] = ei_inb(ioaddr + NE_DATAPORT); + SA_prom[i + 1] = ei_inb(ioaddr + NE_DATAPORT); + } + + if (ax->plat->wordlength == 2) + for (i = 0; i < 16; i++) + SA_prom[i] = SA_prom[i+i]; + + memcpy(dev->dev_addr, SA_prom, 6); + } + +#ifdef CONFIG_AX88796_93CX6 + if (ax->plat->flags & AXFLG_HAS_93CX6) { + unsigned char mac_addr[6]; + struct eeprom_93cx6 eeprom; + + eeprom.data = ei_local; + eeprom.register_read = ax_eeprom_register_read; + eeprom.register_write = ax_eeprom_register_write; + eeprom.width = PCI_EEPROM_WIDTH_93C56; + + eeprom_93cx6_multiread(&eeprom, 0, + (__le16 __force *)mac_addr, + sizeof(mac_addr) >> 1); + + memcpy(dev->dev_addr, mac_addr, 6); + } +#endif + if (ax->plat->wordlength == 2) { + /* We must set the 8390 for word mode. */ + ei_outb(ax->plat->dcr_val, ei_local->mem + EN0_DCFG); + start_page = NESM_START_PG; + stop_page = NESM_STOP_PG; + } else { + start_page = NE1SM_START_PG; + stop_page = NE1SM_STOP_PG; + } + + /* load the mac-address from the device */ + if (ax->plat->flags & AXFLG_MAC_FROMDEV) { + ei_outb(E8390_NODMA + E8390_PAGE1 + E8390_STOP, + ei_local->mem + E8390_CMD); /* 0x61 */ + for (i = 0; i < ETHER_ADDR_LEN; i++) + dev->dev_addr[i] = + ei_inb(ioaddr + EN1_PHYS_SHIFT(i)); + } + + if ((ax->plat->flags & AXFLG_MAC_FROMPLATFORM) && + ax->plat->mac_addr) + memcpy(dev->dev_addr, ax->plat->mac_addr, + ETHER_ADDR_LEN); + + ax_reset_8390(dev); + + ei_local->name = "AX88796"; + ei_local->tx_start_page = start_page; + ei_local->stop_page = stop_page; + ei_local->word16 = (ax->plat->wordlength == 2); + ei_local->rx_start_page = start_page + TX_PAGES; + +#ifdef PACKETBUF_MEMSIZE + /* Allow the packet buffer size to be overridden by know-it-alls. */ + ei_local->stop_page = ei_local->tx_start_page + PACKETBUF_MEMSIZE; +#endif + + ei_local->reset_8390 = &ax_reset_8390; + ei_local->block_input = &ax_block_input; + ei_local->block_output = &ax_block_output; + ei_local->get_8390_hdr = &ax_get_8390_hdr; + ei_local->priv = 0; + + dev->netdev_ops = &ax_netdev_ops; + dev->ethtool_ops = &ax_ethtool_ops; + + ret = ax_mii_init(dev); + if (ret) + goto out_irq; + + ax_NS8390_init(dev, 0); + + ret = register_netdev(dev); + if (ret) + goto out_irq; + + netdev_info(dev, "%dbit, irq %d, %lx, MAC: %pM\n", + ei_local->word16 ? 16 : 8, dev->irq, dev->base_addr, + dev->dev_addr); + + return 0; + + out_irq: + /* cleanup irq */ + free_irq(dev->irq, dev); + err_out: + return ret; +} + +static int ax_remove(struct platform_device *pdev) +{ + struct net_device *dev = platform_get_drvdata(pdev); + struct ei_device *ei_local = netdev_priv(dev); + struct ax_device *ax = to_ax_dev(dev); + struct resource *mem; + + unregister_netdev(dev); + free_irq(dev->irq, dev); + + iounmap(ei_local->mem); + mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); + release_mem_region(mem->start, resource_size(mem)); + + if (ax->map2) { + iounmap(ax->map2); + mem = platform_get_resource(pdev, IORESOURCE_MEM, 1); + release_mem_region(mem->start, resource_size(mem)); + } + + free_netdev(dev); + + return 0; +} + +/* + * ax_probe + * + * This is the entry point when the platform device system uses to + * notify us of a new device to attach to. Allocate memory, find the + * resources and information passed, and map the necessary registers. + */ +static int ax_probe(struct platform_device *pdev) +{ + struct net_device *dev; + struct ei_device *ei_local; + struct ax_device *ax; + struct resource *irq, *mem, *mem2; + resource_size_t mem_size, mem2_size = 0; + int ret = 0; + + dev = ax__alloc_ei_netdev(sizeof(struct ax_device)); + if (dev == NULL) + return -ENOMEM; + + /* ok, let's setup our device */ + SET_NETDEV_DEV(dev, &pdev->dev); + ei_local = netdev_priv(dev); + ax = to_ax_dev(dev); + + ax->plat = pdev->dev.platform_data; + platform_set_drvdata(pdev, dev); + + ei_local->rxcr_base = ax->plat->rcr_val; + + /* find the platform resources */ + irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0); + if (!irq) { + dev_err(&pdev->dev, "no IRQ specified\n"); + ret = -ENXIO; + goto exit_mem; + } + + dev->irq = irq->start; + ax->irqflags = irq->flags & IRQF_TRIGGER_MASK; + + mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!mem) { + dev_err(&pdev->dev, "no MEM specified\n"); + ret = -ENXIO; + goto exit_mem; + } + + mem_size = resource_size(mem); + + /* + * setup the register offsets from either the platform data or + * by using the size of the resource provided + */ + if (ax->plat->reg_offsets) + ei_local->reg_offset = ax->plat->reg_offsets; + else { + ei_local->reg_offset = ax->reg_offsets; + for (ret = 0; ret < 0x18; ret++) + ax->reg_offsets[ret] = (mem_size / 0x18) * ret; + } + + if (!request_mem_region(mem->start, mem_size, pdev->name)) { + dev_err(&pdev->dev, "cannot reserve registers\n"); + ret = -ENXIO; + goto exit_mem; + } + + ei_local->mem = ioremap(mem->start, mem_size); + dev->base_addr = (unsigned long)ei_local->mem; + + if (ei_local->mem == NULL) { + dev_err(&pdev->dev, "Cannot ioremap area %pR\n", mem); + + ret = -ENXIO; + goto exit_req; + } + + /* look for reset area */ + mem2 = platform_get_resource(pdev, IORESOURCE_MEM, 1); + if (!mem2) { + if (!ax->plat->reg_offsets) { + for (ret = 0; ret < 0x20; ret++) + ax->reg_offsets[ret] = (mem_size / 0x20) * ret; + } + } else { + mem2_size = resource_size(mem2); + + if (!request_mem_region(mem2->start, mem2_size, pdev->name)) { + dev_err(&pdev->dev, "cannot reserve registers\n"); + ret = -ENXIO; + goto exit_mem1; + } + + ax->map2 = ioremap(mem2->start, mem2_size); + if (!ax->map2) { + dev_err(&pdev->dev, "cannot map reset register\n"); + ret = -ENXIO; + goto exit_mem2; + } + + ei_local->reg_offset[0x1f] = ax->map2 - ei_local->mem; + } + + /* got resources, now initialise and register device */ + ret = ax_init_dev(dev); + if (!ret) + return 0; + + if (!ax->map2) + goto exit_mem1; + + iounmap(ax->map2); + + exit_mem2: + release_mem_region(mem2->start, mem2_size); + + exit_mem1: + iounmap(ei_local->mem); + + exit_req: + release_mem_region(mem->start, mem_size); + + exit_mem: + free_netdev(dev); + + return ret; +} + +/* suspend and resume */ + +#ifdef CONFIG_PM +static int ax_suspend(struct platform_device *dev, pm_message_t state) +{ + struct net_device *ndev = platform_get_drvdata(dev); + struct ax_device *ax = to_ax_dev(ndev); + + ax->resume_open = ax->running; + + netif_device_detach(ndev); + ax_close(ndev); + + return 0; +} + +static int ax_resume(struct platform_device *pdev) +{ + struct net_device *ndev = platform_get_drvdata(pdev); + struct ax_device *ax = to_ax_dev(ndev); + + ax_initial_setup(ndev, netdev_priv(ndev)); + ax_NS8390_init(ndev, ax->resume_open); + netif_device_attach(ndev); + + if (ax->resume_open) + ax_open(ndev); + + return 0; +} + +#else +#define ax_suspend NULL +#define ax_resume NULL +#endif + +static struct platform_driver axdrv = { + .driver = { + .name = "ax88796", + .owner = THIS_MODULE, + }, + .probe = ax_probe, + .remove = ax_remove, + .suspend = ax_suspend, + .resume = ax_resume, +}; + +static int __init axdrv_init(void) +{ + return platform_driver_register(&axdrv); +} + +static void __exit axdrv_exit(void) +{ + platform_driver_unregister(&axdrv); +} + +module_init(axdrv_init); +module_exit(axdrv_exit); + +MODULE_DESCRIPTION("AX88796 10/100 Ethernet platform driver"); +MODULE_AUTHOR("Ben Dooks, <ben@simtec.co.uk>"); +MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("platform:ax88796"); diff --git a/drivers/net/ethernet/8390/axnet_cs.c b/drivers/net/ethernet/8390/axnet_cs.c new file mode 100644 index 000000000000..3e4b926c30dc --- /dev/null +++ b/drivers/net/ethernet/8390/axnet_cs.c @@ -0,0 +1,1725 @@ +/*====================================================================== + + A PCMCIA ethernet driver for Asix AX88190-based cards + + The Asix AX88190 is a NS8390-derived chipset with a few nasty + idiosyncracies that make it very inconvenient to support with a + standard 8390 driver. This driver is based on pcnet_cs, with the + tweaked 8390 code grafted on the end. Much of what I did was to + clean up and update a similar driver supplied by Asix, which was + adapted by William Lee, william@asix.com.tw. + + Copyright (C) 2001 David A. Hinds -- dahinds@users.sourceforge.net + + axnet_cs.c 1.28 2002/06/29 06:27:37 + + The network driver code is based on Donald Becker's NE2000 code: + + Written 1992,1993 by Donald Becker. + Copyright 1993 United States Government as represented by the + Director, National Security Agency. This software may be used and + distributed according to the terms of the GNU General Public License, + incorporated herein by reference. + Donald Becker may be reached at becker@scyld.com + +======================================================================*/ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/ptrace.h> +#include <linux/string.h> +#include <linux/timer.h> +#include <linux/delay.h> +#include <linux/spinlock.h> +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/crc32.h> +#include <linux/mii.h> +#include "8390.h" + +#include <pcmcia/cistpl.h> +#include <pcmcia/ciscode.h> +#include <pcmcia/ds.h> +#include <pcmcia/cisreg.h> + +#include <asm/io.h> +#include <asm/system.h> +#include <asm/byteorder.h> +#include <asm/uaccess.h> + +#define AXNET_CMD 0x00 +#define AXNET_DATAPORT 0x10 /* NatSemi-defined port window offset. */ +#define AXNET_RESET 0x1f /* Issue a read to reset, a write to clear. */ +#define AXNET_MII_EEP 0x14 /* Offset of MII access port */ +#define AXNET_TEST 0x15 /* Offset of TEST Register port */ +#define AXNET_GPIO 0x17 /* Offset of General Purpose Register Port */ + +#define AXNET_START_PG 0x40 /* First page of TX buffer */ +#define AXNET_STOP_PG 0x80 /* Last page +1 of RX ring */ + +#define AXNET_RDC_TIMEOUT 0x02 /* Max wait in jiffies for Tx RDC */ + +#define IS_AX88190 0x0001 +#define IS_AX88790 0x0002 + +/*====================================================================*/ + +/* Module parameters */ + +MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>"); +MODULE_DESCRIPTION("Asix AX88190 PCMCIA ethernet driver"); +MODULE_LICENSE("GPL"); + + +/*====================================================================*/ + +static int axnet_config(struct pcmcia_device *link); +static void axnet_release(struct pcmcia_device *link); +static int axnet_open(struct net_device *dev); +static int axnet_close(struct net_device *dev); +static int axnet_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); +static netdev_tx_t axnet_start_xmit(struct sk_buff *skb, + struct net_device *dev); +static struct net_device_stats *get_stats(struct net_device *dev); +static void set_multicast_list(struct net_device *dev); +static void axnet_tx_timeout(struct net_device *dev); +static irqreturn_t ei_irq_wrapper(int irq, void *dev_id); +static void ei_watchdog(u_long arg); +static void axnet_reset_8390(struct net_device *dev); + +static int mdio_read(unsigned int addr, int phy_id, int loc); +static void mdio_write(unsigned int addr, int phy_id, int loc, int value); + +static void get_8390_hdr(struct net_device *, + struct e8390_pkt_hdr *, int); +static void block_input(struct net_device *dev, int count, + struct sk_buff *skb, int ring_offset); +static void block_output(struct net_device *dev, int count, + const u_char *buf, const int start_page); + +static void axnet_detach(struct pcmcia_device *p_dev); + +static void AX88190_init(struct net_device *dev, int startp); +static int ax_open(struct net_device *dev); +static int ax_close(struct net_device *dev); +static irqreturn_t ax_interrupt(int irq, void *dev_id); + +/*====================================================================*/ + +typedef struct axnet_dev_t { + struct pcmcia_device *p_dev; + caddr_t base; + struct timer_list watchdog; + int stale, fast_poll; + u_short link_status; + u_char duplex_flag; + int phy_id; + int flags; + int active_low; +} axnet_dev_t; + +static inline axnet_dev_t *PRIV(struct net_device *dev) +{ + void *p = (char *)netdev_priv(dev) + sizeof(struct ei_device); + return p; +} + +static const struct net_device_ops axnet_netdev_ops = { + .ndo_open = axnet_open, + .ndo_stop = axnet_close, + .ndo_do_ioctl = axnet_ioctl, + .ndo_start_xmit = axnet_start_xmit, + .ndo_tx_timeout = axnet_tx_timeout, + .ndo_get_stats = get_stats, + .ndo_set_multicast_list = set_multicast_list, + .ndo_change_mtu = eth_change_mtu, + .ndo_set_mac_address = eth_mac_addr, + .ndo_validate_addr = eth_validate_addr, +}; + +static int axnet_probe(struct pcmcia_device *link) +{ + axnet_dev_t *info; + struct net_device *dev; + struct ei_device *ei_local; + + dev_dbg(&link->dev, "axnet_attach()\n"); + + dev = alloc_etherdev(sizeof(struct ei_device) + sizeof(axnet_dev_t)); + if (!dev) + return -ENOMEM; + + ei_local = netdev_priv(dev); + spin_lock_init(&ei_local->page_lock); + + info = PRIV(dev); + info->p_dev = link; + link->priv = dev; + link->config_flags |= CONF_ENABLE_IRQ; + + dev->netdev_ops = &axnet_netdev_ops; + + dev->watchdog_timeo = TX_TIMEOUT; + + return axnet_config(link); +} /* axnet_attach */ + +static void axnet_detach(struct pcmcia_device *link) +{ + struct net_device *dev = link->priv; + + dev_dbg(&link->dev, "axnet_detach(0x%p)\n", link); + + unregister_netdev(dev); + + axnet_release(link); + + free_netdev(dev); +} /* axnet_detach */ + +/*====================================================================== + + This probes for a card's hardware address by reading the PROM. + +======================================================================*/ + +static int get_prom(struct pcmcia_device *link) +{ + struct net_device *dev = link->priv; + unsigned int ioaddr = dev->base_addr; + int i, j; + + /* This is based on drivers/net/ne.c */ + struct { + u_char value, offset; + } program_seq[] = { + {E8390_NODMA+E8390_PAGE0+E8390_STOP, E8390_CMD}, /* Select page 0*/ + {0x01, EN0_DCFG}, /* Set word-wide access. */ + {0x00, EN0_RCNTLO}, /* Clear the count regs. */ + {0x00, EN0_RCNTHI}, + {0x00, EN0_IMR}, /* Mask completion irq. */ + {0xFF, EN0_ISR}, + {E8390_RXOFF|0x40, EN0_RXCR}, /* 0x60 Set to monitor */ + {E8390_TXOFF, EN0_TXCR}, /* 0x02 and loopback mode. */ + {0x10, EN0_RCNTLO}, + {0x00, EN0_RCNTHI}, + {0x00, EN0_RSARLO}, /* DMA starting at 0x0400. */ + {0x04, EN0_RSARHI}, + {E8390_RREAD+E8390_START, E8390_CMD}, + }; + + /* Not much of a test, but the alternatives are messy */ + if (link->config_base != 0x03c0) + return 0; + + axnet_reset_8390(dev); + mdelay(10); + + for (i = 0; i < ARRAY_SIZE(program_seq); i++) + outb_p(program_seq[i].value, ioaddr + program_seq[i].offset); + + for (i = 0; i < 6; i += 2) { + j = inw(ioaddr + AXNET_DATAPORT); + dev->dev_addr[i] = j & 0xff; + dev->dev_addr[i+1] = j >> 8; + } + return 1; +} /* get_prom */ + +static int try_io_port(struct pcmcia_device *link) +{ + int j, ret; + link->resource[0]->flags &= ~IO_DATA_PATH_WIDTH; + link->resource[1]->flags &= ~IO_DATA_PATH_WIDTH; + if (link->resource[0]->end == 32) { + link->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO; + /* for master/slave multifunction cards */ + if (link->resource[1]->end > 0) + link->resource[1]->flags |= IO_DATA_PATH_WIDTH_8; + } else { + /* This should be two 16-port windows */ + link->resource[0]->flags |= IO_DATA_PATH_WIDTH_8; + link->resource[1]->flags |= IO_DATA_PATH_WIDTH_16; + } + if (link->resource[0]->start == 0) { + for (j = 0; j < 0x400; j += 0x20) { + link->resource[0]->start = j ^ 0x300; + link->resource[1]->start = (j ^ 0x300) + 0x10; + link->io_lines = 16; + ret = pcmcia_request_io(link); + if (ret == 0) + return ret; + } + return ret; + } else { + return pcmcia_request_io(link); + } +} + +static int axnet_configcheck(struct pcmcia_device *p_dev, void *priv_data) +{ + if (p_dev->config_index == 0) + return -EINVAL; + + p_dev->config_index = 0x05; + if (p_dev->resource[0]->end + p_dev->resource[1]->end < 32) + return -ENODEV; + + return try_io_port(p_dev); +} + +static int axnet_config(struct pcmcia_device *link) +{ + struct net_device *dev = link->priv; + axnet_dev_t *info = PRIV(dev); + int i, j, j2, ret; + + dev_dbg(&link->dev, "axnet_config(0x%p)\n", link); + + /* don't trust the CIS on this; Linksys got it wrong */ + link->config_regs = 0x63; + link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IO; + ret = pcmcia_loop_config(link, axnet_configcheck, NULL); + if (ret != 0) + goto failed; + + if (!link->irq) + goto failed; + + if (resource_size(link->resource[1]) == 8) + link->config_flags |= CONF_ENABLE_SPKR; + + ret = pcmcia_enable_device(link); + if (ret) + goto failed; + + dev->irq = link->irq; + dev->base_addr = link->resource[0]->start; + + if (!get_prom(link)) { + pr_notice("this is not an AX88190 card!\n"); + pr_notice("use pcnet_cs instead.\n"); + goto failed; + } + + ei_status.name = "AX88190"; + ei_status.word16 = 1; + ei_status.tx_start_page = AXNET_START_PG; + ei_status.rx_start_page = AXNET_START_PG + TX_PAGES; + ei_status.stop_page = AXNET_STOP_PG; + ei_status.reset_8390 = axnet_reset_8390; + ei_status.get_8390_hdr = get_8390_hdr; + ei_status.block_input = block_input; + ei_status.block_output = block_output; + + if (inb(dev->base_addr + AXNET_TEST) != 0) + info->flags |= IS_AX88790; + else + info->flags |= IS_AX88190; + + if (info->flags & IS_AX88790) + outb(0x10, dev->base_addr + AXNET_GPIO); /* select Internal PHY */ + + info->active_low = 0; + + for (i = 0; i < 32; i++) { + j = mdio_read(dev->base_addr + AXNET_MII_EEP, i, 1); + j2 = mdio_read(dev->base_addr + AXNET_MII_EEP, i, 2); + if (j == j2) continue; + if ((j != 0) && (j != 0xffff)) break; + } + + if (i == 32) { + /* Maybe PHY is in power down mode. (PPD_SET = 1) + Bit 2 of CCSR is active low. */ + pcmcia_write_config_byte(link, CISREG_CCSR, 0x04); + for (i = 0; i < 32; i++) { + j = mdio_read(dev->base_addr + AXNET_MII_EEP, i, 1); + j2 = mdio_read(dev->base_addr + AXNET_MII_EEP, i, 2); + if (j == j2) continue; + if ((j != 0) && (j != 0xffff)) { + info->active_low = 1; + break; + } + } + } + + info->phy_id = (i < 32) ? i : -1; + SET_NETDEV_DEV(dev, &link->dev); + + if (register_netdev(dev) != 0) { + pr_notice("register_netdev() failed\n"); + goto failed; + } + + netdev_info(dev, "Asix AX88%d90: io %#3lx, irq %d, hw_addr %pM\n", + ((info->flags & IS_AX88790) ? 7 : 1), + dev->base_addr, dev->irq, dev->dev_addr); + if (info->phy_id != -1) { + netdev_dbg(dev, " MII transceiver at index %d, status %x\n", + info->phy_id, j); + } else { + netdev_notice(dev, " No MII transceivers found!\n"); + } + return 0; + +failed: + axnet_release(link); + return -ENODEV; +} /* axnet_config */ + +static void axnet_release(struct pcmcia_device *link) +{ + pcmcia_disable_device(link); +} + +static int axnet_suspend(struct pcmcia_device *link) +{ + struct net_device *dev = link->priv; + + if (link->open) + netif_device_detach(dev); + + return 0; +} + +static int axnet_resume(struct pcmcia_device *link) +{ + struct net_device *dev = link->priv; + axnet_dev_t *info = PRIV(dev); + + if (link->open) { + if (info->active_low == 1) + pcmcia_write_config_byte(link, CISREG_CCSR, 0x04); + + axnet_reset_8390(dev); + AX88190_init(dev, 1); + netif_device_attach(dev); + } + + return 0; +} + + +/*====================================================================== + + MII interface support + +======================================================================*/ + +#define MDIO_SHIFT_CLK 0x01 +#define MDIO_DATA_WRITE0 0x00 +#define MDIO_DATA_WRITE1 0x08 +#define MDIO_DATA_READ 0x04 +#define MDIO_MASK 0x0f +#define MDIO_ENB_IN 0x02 + +static void mdio_sync(unsigned int addr) +{ + int bits; + for (bits = 0; bits < 32; bits++) { + outb_p(MDIO_DATA_WRITE1, addr); + outb_p(MDIO_DATA_WRITE1 | MDIO_SHIFT_CLK, addr); + } +} + +static int mdio_read(unsigned int addr, int phy_id, int loc) +{ + u_int cmd = (0xf6<<10)|(phy_id<<5)|loc; + int i, retval = 0; + + mdio_sync(addr); + for (i = 14; i >= 0; i--) { + int dat = (cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0; + outb_p(dat, addr); + outb_p(dat | MDIO_SHIFT_CLK, addr); + } + for (i = 19; i > 0; i--) { + outb_p(MDIO_ENB_IN, addr); + retval = (retval << 1) | ((inb_p(addr) & MDIO_DATA_READ) != 0); + outb_p(MDIO_ENB_IN | MDIO_SHIFT_CLK, addr); + } + return (retval>>1) & 0xffff; +} + +static void mdio_write(unsigned int addr, int phy_id, int loc, int value) +{ + u_int cmd = (0x05<<28)|(phy_id<<23)|(loc<<18)|(1<<17)|value; + int i; + + mdio_sync(addr); + for (i = 31; i >= 0; i--) { + int dat = (cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0; + outb_p(dat, addr); + outb_p(dat | MDIO_SHIFT_CLK, addr); + } + for (i = 1; i >= 0; i--) { + outb_p(MDIO_ENB_IN, addr); + outb_p(MDIO_ENB_IN | MDIO_SHIFT_CLK, addr); + } +} + +/*====================================================================*/ + +static int axnet_open(struct net_device *dev) +{ + int ret; + axnet_dev_t *info = PRIV(dev); + struct pcmcia_device *link = info->p_dev; + unsigned int nic_base = dev->base_addr; + + dev_dbg(&link->dev, "axnet_open('%s')\n", dev->name); + + if (!pcmcia_dev_present(link)) + return -ENODEV; + + outb_p(0xFF, nic_base + EN0_ISR); /* Clear bogus intr. */ + ret = request_irq(dev->irq, ei_irq_wrapper, IRQF_SHARED, "axnet_cs", dev); + if (ret) + return ret; + + link->open++; + + info->link_status = 0x00; + init_timer(&info->watchdog); + info->watchdog.function = ei_watchdog; + info->watchdog.data = (u_long)dev; + info->watchdog.expires = jiffies + HZ; + add_timer(&info->watchdog); + + return ax_open(dev); +} /* axnet_open */ + +/*====================================================================*/ + +static int axnet_close(struct net_device *dev) +{ + axnet_dev_t *info = PRIV(dev); + struct pcmcia_device *link = info->p_dev; + + dev_dbg(&link->dev, "axnet_close('%s')\n", dev->name); + + ax_close(dev); + free_irq(dev->irq, dev); + + link->open--; + netif_stop_queue(dev); + del_timer_sync(&info->watchdog); + + return 0; +} /* axnet_close */ + +/*====================================================================== + + Hard reset the card. This used to pause for the same period that + a 8390 reset command required, but that shouldn't be necessary. + +======================================================================*/ + +static void axnet_reset_8390(struct net_device *dev) +{ + unsigned int nic_base = dev->base_addr; + int i; + + ei_status.txing = ei_status.dmaing = 0; + + outb_p(E8390_NODMA+E8390_PAGE0+E8390_STOP, nic_base + E8390_CMD); + + outb(inb(nic_base + AXNET_RESET), nic_base + AXNET_RESET); + + for (i = 0; i < 100; i++) { + if ((inb_p(nic_base+EN0_ISR) & ENISR_RESET) != 0) + break; + udelay(100); + } + outb_p(ENISR_RESET, nic_base + EN0_ISR); /* Ack intr. */ + + if (i == 100) + netdev_err(dev, "axnet_reset_8390() did not complete\n"); + +} /* axnet_reset_8390 */ + +/*====================================================================*/ + +static irqreturn_t ei_irq_wrapper(int irq, void *dev_id) +{ + struct net_device *dev = dev_id; + PRIV(dev)->stale = 0; + return ax_interrupt(irq, dev_id); +} + +static void ei_watchdog(u_long arg) +{ + struct net_device *dev = (struct net_device *)(arg); + axnet_dev_t *info = PRIV(dev); + unsigned int nic_base = dev->base_addr; + unsigned int mii_addr = nic_base + AXNET_MII_EEP; + u_short link; + + if (!netif_device_present(dev)) goto reschedule; + + /* Check for pending interrupt with expired latency timer: with + this, we can limp along even if the interrupt is blocked */ + if (info->stale++ && (inb_p(nic_base + EN0_ISR) & ENISR_ALL)) { + if (!info->fast_poll) + netdev_info(dev, "interrupt(s) dropped!\n"); + ei_irq_wrapper(dev->irq, dev); + info->fast_poll = HZ; + } + if (info->fast_poll) { + info->fast_poll--; + info->watchdog.expires = jiffies + 1; + add_timer(&info->watchdog); + return; + } + + if (info->phy_id < 0) + goto reschedule; + link = mdio_read(mii_addr, info->phy_id, 1); + if (!link || (link == 0xffff)) { + netdev_info(dev, "MII is missing!\n"); + info->phy_id = -1; + goto reschedule; + } + + link &= 0x0004; + if (link != info->link_status) { + u_short p = mdio_read(mii_addr, info->phy_id, 5); + netdev_info(dev, "%s link beat\n", link ? "found" : "lost"); + if (link) { + info->duplex_flag = (p & 0x0140) ? 0x80 : 0x00; + if (p) + netdev_info(dev, "autonegotiation complete: %dbaseT-%cD selected\n", + (p & 0x0180) ? 100 : 10, (p & 0x0140) ? 'F' : 'H'); + else + netdev_info(dev, "link partner did not autonegotiate\n"); + AX88190_init(dev, 1); + } + info->link_status = link; + } + +reschedule: + info->watchdog.expires = jiffies + HZ; + add_timer(&info->watchdog); +} + +/*====================================================================*/ + +static int axnet_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) +{ + axnet_dev_t *info = PRIV(dev); + struct mii_ioctl_data *data = if_mii(rq); + unsigned int mii_addr = dev->base_addr + AXNET_MII_EEP; + switch (cmd) { + case SIOCGMIIPHY: + data->phy_id = info->phy_id; + case SIOCGMIIREG: /* Read MII PHY register. */ + data->val_out = mdio_read(mii_addr, data->phy_id, data->reg_num & 0x1f); + return 0; + case SIOCSMIIREG: /* Write MII PHY register. */ + mdio_write(mii_addr, data->phy_id, data->reg_num & 0x1f, data->val_in); + return 0; + } + return -EOPNOTSUPP; +} + +/*====================================================================*/ + +static void get_8390_hdr(struct net_device *dev, + struct e8390_pkt_hdr *hdr, + int ring_page) +{ + unsigned int nic_base = dev->base_addr; + + outb_p(0, nic_base + EN0_RSARLO); /* On page boundary */ + outb_p(ring_page, nic_base + EN0_RSARHI); + outb_p(E8390_RREAD+E8390_START, nic_base + AXNET_CMD); + + insw(nic_base + AXNET_DATAPORT, hdr, + sizeof(struct e8390_pkt_hdr)>>1); + /* Fix for big endian systems */ + hdr->count = le16_to_cpu(hdr->count); + +} + +/*====================================================================*/ + +static void block_input(struct net_device *dev, int count, + struct sk_buff *skb, int ring_offset) +{ + unsigned int nic_base = dev->base_addr; + int xfer_count = count; + char *buf = skb->data; + + if ((ei_debug > 4) && (count != 4)) + pr_debug("%s: [bi=%d]\n", dev->name, count+4); + outb_p(ring_offset & 0xff, nic_base + EN0_RSARLO); + outb_p(ring_offset >> 8, nic_base + EN0_RSARHI); + outb_p(E8390_RREAD+E8390_START, nic_base + AXNET_CMD); + + insw(nic_base + AXNET_DATAPORT,buf,count>>1); + if (count & 0x01) + buf[count-1] = inb(nic_base + AXNET_DATAPORT), xfer_count++; + +} + +/*====================================================================*/ + +static void block_output(struct net_device *dev, int count, + const u_char *buf, const int start_page) +{ + unsigned int nic_base = dev->base_addr; + + pr_debug("%s: [bo=%d]\n", dev->name, count); + + /* Round the count up for word writes. Do we need to do this? + What effect will an odd byte count have on the 8390? + I should check someday. */ + if (count & 0x01) + count++; + + outb_p(0x00, nic_base + EN0_RSARLO); + outb_p(start_page, nic_base + EN0_RSARHI); + outb_p(E8390_RWRITE+E8390_START, nic_base + AXNET_CMD); + outsw(nic_base + AXNET_DATAPORT, buf, count>>1); +} + +static const struct pcmcia_device_id axnet_ids[] = { + PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x016c, 0x0081), + PCMCIA_DEVICE_MANF_CARD(0x018a, 0x0301), + PCMCIA_DEVICE_MANF_CARD(0x01bf, 0x2328), + PCMCIA_DEVICE_MANF_CARD(0x026f, 0x0301), + PCMCIA_DEVICE_MANF_CARD(0x026f, 0x0303), + PCMCIA_DEVICE_MANF_CARD(0x026f, 0x0309), + PCMCIA_DEVICE_MANF_CARD(0x0274, 0x1106), + PCMCIA_DEVICE_MANF_CARD(0x8a01, 0xc1ab), + PCMCIA_DEVICE_MANF_CARD(0x021b, 0x0202), + PCMCIA_DEVICE_MANF_CARD(0xffff, 0x1090), + PCMCIA_DEVICE_PROD_ID12("AmbiCom,Inc.", "Fast Ethernet PC Card(AMB8110)", 0x49b020a7, 0x119cc9fc), + PCMCIA_DEVICE_PROD_ID124("Fast Ethernet", "16-bit PC Card", "AX88190", 0xb4be14e3, 0x9a12eb6a, 0xab9be5ef), + PCMCIA_DEVICE_PROD_ID12("ASIX", "AX88190", 0x0959823b, 0xab9be5ef), + PCMCIA_DEVICE_PROD_ID12("Billionton", "LNA-100B", 0x552ab682, 0xbc3b87e1), + PCMCIA_DEVICE_PROD_ID12("CHEETAH ETHERCARD", "EN2228", 0x00fa7bc8, 0x00e990cc), + PCMCIA_DEVICE_PROD_ID12("CNet", "CNF301", 0xbc477dde, 0x78c5f40b), + PCMCIA_DEVICE_PROD_ID12("corega K.K.", "corega FEther PCC-TXD", 0x5261440f, 0x436768c5), + PCMCIA_DEVICE_PROD_ID12("corega K.K.", "corega FEtherII PCC-TXD", 0x5261440f, 0x730df72e), + PCMCIA_DEVICE_PROD_ID12("corega K.K.", "corega FEther PCC-TXM", 0x5261440f, 0x3abbd061), + PCMCIA_DEVICE_PROD_ID12("Dynalink", "L100C16", 0x55632fd5, 0x66bc2a90), + PCMCIA_DEVICE_PROD_ID12("IO DATA", "ETXPCM", 0x547e66dc, 0x233adac2), + PCMCIA_DEVICE_PROD_ID12("Linksys", "EtherFast 10/100 PC Card (PCMPC100 V3)", 0x0733cc81, 0x232019a8), + PCMCIA_DEVICE_PROD_ID12("MELCO", "LPC3-TX", 0x481e0094, 0xf91af609), + PCMCIA_DEVICE_PROD_ID12("NETGEAR", "FA411", 0x9aa79dc3, 0x40fad875), + PCMCIA_DEVICE_PROD_ID12("PCMCIA", "100BASE", 0x281f1c5d, 0x7c2add04), + PCMCIA_DEVICE_PROD_ID12("PCMCIA", "FastEtherCard", 0x281f1c5d, 0x7ef26116), + PCMCIA_DEVICE_PROD_ID12("PCMCIA", "FEP501", 0x281f1c5d, 0x2e272058), + PCMCIA_DEVICE_PROD_ID14("Network Everywhere", "AX88190", 0x820a67b6, 0xab9be5ef), + PCMCIA_DEVICE_NULL, +}; +MODULE_DEVICE_TABLE(pcmcia, axnet_ids); + +static struct pcmcia_driver axnet_cs_driver = { + .owner = THIS_MODULE, + .name = "axnet_cs", + .probe = axnet_probe, + .remove = axnet_detach, + .id_table = axnet_ids, + .suspend = axnet_suspend, + .resume = axnet_resume, +}; + +static int __init init_axnet_cs(void) +{ + return pcmcia_register_driver(&axnet_cs_driver); +} + +static void __exit exit_axnet_cs(void) +{ + pcmcia_unregister_driver(&axnet_cs_driver); +} + +module_init(init_axnet_cs); +module_exit(exit_axnet_cs); + +/*====================================================================*/ + +/* 8390.c: A general NS8390 ethernet driver core for linux. */ +/* + Written 1992-94 by Donald Becker. + + Copyright 1993 United States Government as represented by the + Director, National Security Agency. + + This software may be used and distributed according to the terms + of the GNU General Public License, incorporated herein by reference. + + The author may be reached as becker@scyld.com, or C/O + Scyld Computing Corporation + 410 Severn Ave., Suite 210 + Annapolis MD 21403 + + This is the chip-specific code for many 8390-based ethernet adaptors. + This is not a complete driver, it must be combined with board-specific + code such as ne.c, wd.c, 3c503.c, etc. + + Seeing how at least eight drivers use this code, (not counting the + PCMCIA ones either) it is easy to break some card by what seems like + a simple innocent change. Please contact me or Donald if you think + you have found something that needs changing. -- PG + + Changelog: + + Paul Gortmaker : remove set_bit lock, other cleanups. + Paul Gortmaker : add ei_get_8390_hdr() so we can pass skb's to + ei_block_input() for eth_io_copy_and_sum(). + Paul Gortmaker : exchange static int ei_pingpong for a #define, + also add better Tx error handling. + Paul Gortmaker : rewrite Rx overrun handling as per NS specs. + Alexey Kuznetsov : use the 8390's six bit hash multicast filter. + Paul Gortmaker : tweak ANK's above multicast changes a bit. + Paul Gortmaker : update packet statistics for v2.1.x + Alan Cox : support arbitrary stupid port mappings on the + 68K Macintosh. Support >16bit I/O spaces + Paul Gortmaker : add kmod support for auto-loading of the 8390 + module by all drivers that require it. + Alan Cox : Spinlocking work, added 'BUG_83C690' + Paul Gortmaker : Separate out Tx timeout code from Tx path. + + Sources: + The National Semiconductor LAN Databook, and the 3Com 3c503 databook. + + */ + +#include <linux/bitops.h> +#include <asm/irq.h> +#include <linux/fcntl.h> +#include <linux/in.h> +#include <linux/interrupt.h> + +#define BUG_83C690 + +/* These are the operational function interfaces to board-specific + routines. + void reset_8390(struct net_device *dev) + Resets the board associated with DEV, including a hardware reset of + the 8390. This is only called when there is a transmit timeout, and + it is always followed by 8390_init(). + void block_output(struct net_device *dev, int count, const unsigned char *buf, + int start_page) + Write the COUNT bytes of BUF to the packet buffer at START_PAGE. The + "page" value uses the 8390's 256-byte pages. + void get_8390_hdr(struct net_device *dev, struct e8390_hdr *hdr, int ring_page) + Read the 4 byte, page aligned 8390 header. *If* there is a + subsequent read, it will be of the rest of the packet. + void block_input(struct net_device *dev, int count, struct sk_buff *skb, int ring_offset) + Read COUNT bytes from the packet buffer into the skb data area. Start + reading from RING_OFFSET, the address as the 8390 sees it. This will always + follow the read of the 8390 header. +*/ +#define ei_reset_8390 (ei_local->reset_8390) +#define ei_block_output (ei_local->block_output) +#define ei_block_input (ei_local->block_input) +#define ei_get_8390_hdr (ei_local->get_8390_hdr) + +/* use 0 for production, 1 for verification, >2 for debug */ +#ifndef ei_debug +int ei_debug = 1; +#endif + +/* Index to functions. */ +static void ei_tx_intr(struct net_device *dev); +static void ei_tx_err(struct net_device *dev); +static void ei_receive(struct net_device *dev); +static void ei_rx_overrun(struct net_device *dev); + +/* Routines generic to NS8390-based boards. */ +static void NS8390_trigger_send(struct net_device *dev, unsigned int length, + int start_page); +static void do_set_multicast_list(struct net_device *dev); + +/* + * SMP and the 8390 setup. + * + * The 8390 isn't exactly designed to be multithreaded on RX/TX. There is + * a page register that controls bank and packet buffer access. We guard + * this with ei_local->page_lock. Nobody should assume or set the page other + * than zero when the lock is not held. Lock holders must restore page 0 + * before unlocking. Even pure readers must take the lock to protect in + * page 0. + * + * To make life difficult the chip can also be very slow. We therefore can't + * just use spinlocks. For the longer lockups we disable the irq the device + * sits on and hold the lock. We must hold the lock because there is a dual + * processor case other than interrupts (get stats/set multicast list in + * parallel with each other and transmit). + * + * Note: in theory we can just disable the irq on the card _but_ there is + * a latency on SMP irq delivery. So we can easily go "disable irq" "sync irqs" + * enter lock, take the queued irq. So we waddle instead of flying. + * + * Finally by special arrangement for the purpose of being generally + * annoying the transmit function is called bh atomic. That places + * restrictions on the user context callers as disable_irq won't save + * them. + */ + +/** + * ax_open - Open/initialize the board. + * @dev: network device to initialize + * + * This routine goes all-out, setting everything + * up anew at each open, even though many of these registers should only + * need to be set once at boot. + */ +static int ax_open(struct net_device *dev) +{ + unsigned long flags; + struct ei_device *ei_local = netdev_priv(dev); + + /* + * Grab the page lock so we own the register set, then call + * the init function. + */ + + spin_lock_irqsave(&ei_local->page_lock, flags); + AX88190_init(dev, 1); + /* Set the flag before we drop the lock, That way the IRQ arrives + after its set and we get no silly warnings */ + netif_start_queue(dev); + spin_unlock_irqrestore(&ei_local->page_lock, flags); + ei_local->irqlock = 0; + return 0; +} + +#define dev_lock(dev) (((struct ei_device *)netdev_priv(dev))->page_lock) + +/** + * ax_close - shut down network device + * @dev: network device to close + * + * Opposite of ax_open(). Only used when "ifconfig <devname> down" is done. + */ +static int ax_close(struct net_device *dev) +{ + unsigned long flags; + + /* + * Hold the page lock during close + */ + + spin_lock_irqsave(&dev_lock(dev), flags); + AX88190_init(dev, 0); + spin_unlock_irqrestore(&dev_lock(dev), flags); + netif_stop_queue(dev); + return 0; +} + +/** + * axnet_tx_timeout - handle transmit time out condition + * @dev: network device which has apparently fallen asleep + * + * Called by kernel when device never acknowledges a transmit has + * completed (or failed) - i.e. never posted a Tx related interrupt. + */ + +static void axnet_tx_timeout(struct net_device *dev) +{ + long e8390_base = dev->base_addr; + struct ei_device *ei_local = netdev_priv(dev); + int txsr, isr, tickssofar = jiffies - dev_trans_start(dev); + unsigned long flags; + + dev->stats.tx_errors++; + + spin_lock_irqsave(&ei_local->page_lock, flags); + txsr = inb(e8390_base+EN0_TSR); + isr = inb(e8390_base+EN0_ISR); + spin_unlock_irqrestore(&ei_local->page_lock, flags); + + netdev_printk(KERN_DEBUG, dev, + "Tx timed out, %s TSR=%#2x, ISR=%#2x, t=%d.\n", + (txsr & ENTSR_ABT) ? "excess collisions." : + (isr) ? "lost interrupt?" : "cable problem?", + txsr, isr, tickssofar); + + if (!isr && !dev->stats.tx_packets) + { + /* The 8390 probably hasn't gotten on the cable yet. */ + ei_local->interface_num ^= 1; /* Try a different xcvr. */ + } + + /* Ugly but a reset can be slow, yet must be protected */ + + spin_lock_irqsave(&ei_local->page_lock, flags); + + /* Try to restart the card. Perhaps the user has fixed something. */ + ei_reset_8390(dev); + AX88190_init(dev, 1); + + spin_unlock_irqrestore(&ei_local->page_lock, flags); + netif_wake_queue(dev); +} + +/** + * axnet_start_xmit - begin packet transmission + * @skb: packet to be sent + * @dev: network device to which packet is sent + * + * Sends a packet to an 8390 network device. + */ + +static netdev_tx_t axnet_start_xmit(struct sk_buff *skb, + struct net_device *dev) +{ + long e8390_base = dev->base_addr; + struct ei_device *ei_local = netdev_priv(dev); + int length, send_length, output_page; + unsigned long flags; + u8 packet[ETH_ZLEN]; + + netif_stop_queue(dev); + + length = skb->len; + + /* Mask interrupts from the ethercard. + SMP: We have to grab the lock here otherwise the IRQ handler + on another CPU can flip window and race the IRQ mask set. We end + up trashing the mcast filter not disabling irqs if we don't lock */ + + spin_lock_irqsave(&ei_local->page_lock, flags); + outb_p(0x00, e8390_base + EN0_IMR); + + /* + * Slow phase with lock held. + */ + + ei_local->irqlock = 1; + + send_length = max(length, ETH_ZLEN); + + /* + * We have two Tx slots available for use. Find the first free + * slot, and then perform some sanity checks. With two Tx bufs, + * you get very close to transmitting back-to-back packets. With + * only one Tx buf, the transmitter sits idle while you reload the + * card, leaving a substantial gap between each transmitted packet. + */ + + if (ei_local->tx1 == 0) + { + output_page = ei_local->tx_start_page; + ei_local->tx1 = send_length; + if (ei_debug && ei_local->tx2 > 0) + netdev_printk(KERN_DEBUG, dev, + "idle transmitter tx2=%d, lasttx=%d, txing=%d\n", + ei_local->tx2, ei_local->lasttx, + ei_local->txing); + } + else if (ei_local->tx2 == 0) + { + output_page = ei_local->tx_start_page + TX_PAGES/2; + ei_local->tx2 = send_length; + if (ei_debug && ei_local->tx1 > 0) + netdev_printk(KERN_DEBUG, dev, + "idle transmitter, tx1=%d, lasttx=%d, txing=%d\n", + ei_local->tx1, ei_local->lasttx, + ei_local->txing); + } + else + { /* We should never get here. */ + if (ei_debug) + netdev_printk(KERN_DEBUG, dev, + "No Tx buffers free! tx1=%d tx2=%d last=%d\n", + ei_local->tx1, ei_local->tx2, + ei_local->lasttx); + ei_local->irqlock = 0; + netif_stop_queue(dev); + outb_p(ENISR_ALL, e8390_base + EN0_IMR); + spin_unlock_irqrestore(&ei_local->page_lock, flags); + dev->stats.tx_errors++; + return NETDEV_TX_BUSY; + } + + /* + * Okay, now upload the packet and trigger a send if the transmitter + * isn't already sending. If it is busy, the interrupt handler will + * trigger the send later, upon receiving a Tx done interrupt. + */ + + if (length == skb->len) + ei_block_output(dev, length, skb->data, output_page); + else { + memset(packet, 0, ETH_ZLEN); + skb_copy_from_linear_data(skb, packet, skb->len); + ei_block_output(dev, length, packet, output_page); + } + + if (! ei_local->txing) + { + ei_local->txing = 1; + NS8390_trigger_send(dev, send_length, output_page); + dev->trans_start = jiffies; + if (output_page == ei_local->tx_start_page) + { + ei_local->tx1 = -1; + ei_local->lasttx = -1; + } + else + { + ei_local->tx2 = -1; + ei_local->lasttx = -2; + } + } + else ei_local->txqueue++; + + if (ei_local->tx1 && ei_local->tx2) + netif_stop_queue(dev); + else + netif_start_queue(dev); + + /* Turn 8390 interrupts back on. */ + ei_local->irqlock = 0; + outb_p(ENISR_ALL, e8390_base + EN0_IMR); + + spin_unlock_irqrestore(&ei_local->page_lock, flags); + + dev_kfree_skb (skb); + dev->stats.tx_bytes += send_length; + + return NETDEV_TX_OK; +} + +/** + * ax_interrupt - handle the interrupts from an 8390 + * @irq: interrupt number + * @dev_id: a pointer to the net_device + * + * Handle the ether interface interrupts. We pull packets from + * the 8390 via the card specific functions and fire them at the networking + * stack. We also handle transmit completions and wake the transmit path if + * necessary. We also update the counters and do other housekeeping as + * needed. + */ + +static irqreturn_t ax_interrupt(int irq, void *dev_id) +{ + struct net_device *dev = dev_id; + long e8390_base; + int interrupts, nr_serviced = 0, i; + struct ei_device *ei_local; + int handled = 0; + unsigned long flags; + + e8390_base = dev->base_addr; + ei_local = netdev_priv(dev); + + /* + * Protect the irq test too. + */ + + spin_lock_irqsave(&ei_local->page_lock, flags); + + if (ei_local->irqlock) { +#if 1 /* This might just be an interrupt for a PCI device sharing this line */ + const char *msg; + /* The "irqlock" check is only for testing. */ + if (ei_local->irqlock) + msg = "Interrupted while interrupts are masked!"; + else + msg = "Reentering the interrupt handler!"; + netdev_info(dev, "%s, isr=%#2x imr=%#2x\n", + msg, + inb_p(e8390_base + EN0_ISR), + inb_p(e8390_base + EN0_IMR)); +#endif + spin_unlock_irqrestore(&ei_local->page_lock, flags); + return IRQ_NONE; + } + + if (ei_debug > 3) + netdev_printk(KERN_DEBUG, dev, "interrupt(isr=%#2.2x)\n", + inb_p(e8390_base + EN0_ISR)); + + outb_p(0x00, e8390_base + EN0_ISR); + ei_local->irqlock = 1; + + /* !!Assumption!! -- we stay in page 0. Don't break this. */ + while ((interrupts = inb_p(e8390_base + EN0_ISR)) != 0 && + ++nr_serviced < MAX_SERVICE) + { + if (!netif_running(dev) || (interrupts == 0xff)) { + if (ei_debug > 1) + netdev_warn(dev, + "interrupt from stopped card\n"); + outb_p(interrupts, e8390_base + EN0_ISR); + interrupts = 0; + break; + } + handled = 1; + + /* AX88190 bug fix. */ + outb_p(interrupts, e8390_base + EN0_ISR); + for (i = 0; i < 10; i++) { + if (!(inb(e8390_base + EN0_ISR) & interrupts)) + break; + outb_p(0, e8390_base + EN0_ISR); + outb_p(interrupts, e8390_base + EN0_ISR); + } + if (interrupts & ENISR_OVER) + ei_rx_overrun(dev); + else if (interrupts & (ENISR_RX+ENISR_RX_ERR)) + { + /* Got a good (?) packet. */ + ei_receive(dev); + } + /* Push the next to-transmit packet through. */ + if (interrupts & ENISR_TX) + ei_tx_intr(dev); + else if (interrupts & ENISR_TX_ERR) + ei_tx_err(dev); + + if (interrupts & ENISR_COUNTERS) + { + dev->stats.rx_frame_errors += inb_p(e8390_base + EN0_COUNTER0); + dev->stats.rx_crc_errors += inb_p(e8390_base + EN0_COUNTER1); + dev->stats.rx_missed_errors+= inb_p(e8390_base + EN0_COUNTER2); + } + } + + if (interrupts && ei_debug > 3) + { + handled = 1; + if (nr_serviced >= MAX_SERVICE) + { + /* 0xFF is valid for a card removal */ + if(interrupts!=0xFF) + netdev_warn(dev, "Too much work at interrupt, status %#2.2x\n", + interrupts); + outb_p(ENISR_ALL, e8390_base + EN0_ISR); /* Ack. most intrs. */ + } else { + netdev_warn(dev, "unknown interrupt %#2x\n", + interrupts); + outb_p(0xff, e8390_base + EN0_ISR); /* Ack. all intrs. */ + } + } + + /* Turn 8390 interrupts back on. */ + ei_local->irqlock = 0; + outb_p(ENISR_ALL, e8390_base + EN0_IMR); + + spin_unlock_irqrestore(&ei_local->page_lock, flags); + return IRQ_RETVAL(handled); +} + +/** + * ei_tx_err - handle transmitter error + * @dev: network device which threw the exception + * + * A transmitter error has happened. Most likely excess collisions (which + * is a fairly normal condition). If the error is one where the Tx will + * have been aborted, we try and send another one right away, instead of + * letting the failed packet sit and collect dust in the Tx buffer. This + * is a much better solution as it avoids kernel based Tx timeouts, and + * an unnecessary card reset. + * + * Called with lock held. + */ + +static void ei_tx_err(struct net_device *dev) +{ + long e8390_base = dev->base_addr; + unsigned char txsr = inb_p(e8390_base+EN0_TSR); + unsigned char tx_was_aborted = txsr & (ENTSR_ABT+ENTSR_FU); + +#ifdef VERBOSE_ERROR_DUMP + netdev_printk(KERN_DEBUG, dev, + "transmitter error (%#2x):", txsr); + if (txsr & ENTSR_ABT) + pr_cont(" excess-collisions"); + if (txsr & ENTSR_ND) + pr_cont(" non-deferral"); + if (txsr & ENTSR_CRS) + pr_cont(" lost-carrier"); + if (txsr & ENTSR_FU) + pr_cont(" FIFO-underrun"); + if (txsr & ENTSR_CDH) + pr_cont(" lost-heartbeat"); + pr_cont("\n"); +#endif + + if (tx_was_aborted) + ei_tx_intr(dev); + else + { + dev->stats.tx_errors++; + if (txsr & ENTSR_CRS) dev->stats.tx_carrier_errors++; + if (txsr & ENTSR_CDH) dev->stats.tx_heartbeat_errors++; + if (txsr & ENTSR_OWC) dev->stats.tx_window_errors++; + } +} + +/** + * ei_tx_intr - transmit interrupt handler + * @dev: network device for which tx intr is handled + * + * We have finished a transmit: check for errors and then trigger the next + * packet to be sent. Called with lock held. + */ + +static void ei_tx_intr(struct net_device *dev) +{ + long e8390_base = dev->base_addr; + struct ei_device *ei_local = netdev_priv(dev); + int status = inb(e8390_base + EN0_TSR); + + /* + * There are two Tx buffers, see which one finished, and trigger + * the send of another one if it exists. + */ + ei_local->txqueue--; + + if (ei_local->tx1 < 0) + { + if (ei_local->lasttx != 1 && ei_local->lasttx != -1) + netdev_err(dev, "%s: bogus last_tx_buffer %d, tx1=%d\n", + ei_local->name, ei_local->lasttx, + ei_local->tx1); + ei_local->tx1 = 0; + if (ei_local->tx2 > 0) + { + ei_local->txing = 1; + NS8390_trigger_send(dev, ei_local->tx2, ei_local->tx_start_page + 6); + dev->trans_start = jiffies; + ei_local->tx2 = -1, + ei_local->lasttx = 2; + } + else ei_local->lasttx = 20, ei_local->txing = 0; + } + else if (ei_local->tx2 < 0) + { + if (ei_local->lasttx != 2 && ei_local->lasttx != -2) + netdev_info(dev, "%s: bogus last_tx_buffer %d, tx2=%d\n", + ei_local->name, ei_local->lasttx, + ei_local->tx2); + ei_local->tx2 = 0; + if (ei_local->tx1 > 0) + { + ei_local->txing = 1; + NS8390_trigger_send(dev, ei_local->tx1, ei_local->tx_start_page); + dev->trans_start = jiffies; + ei_local->tx1 = -1; + ei_local->lasttx = 1; + } + else + ei_local->lasttx = 10, ei_local->txing = 0; + } +// else +// netdev_warn(dev, "unexpected TX-done interrupt, lasttx=%d\n", +// ei_local->lasttx); + + /* Minimize Tx latency: update the statistics after we restart TXing. */ + if (status & ENTSR_COL) + dev->stats.collisions++; + if (status & ENTSR_PTX) + dev->stats.tx_packets++; + else + { + dev->stats.tx_errors++; + if (status & ENTSR_ABT) + { + dev->stats.tx_aborted_errors++; + dev->stats.collisions += 16; + } + if (status & ENTSR_CRS) + dev->stats.tx_carrier_errors++; + if (status & ENTSR_FU) + dev->stats.tx_fifo_errors++; + if (status & ENTSR_CDH) + dev->stats.tx_heartbeat_errors++; + if (status & ENTSR_OWC) + dev->stats.tx_window_errors++; + } + netif_wake_queue(dev); +} + +/** + * ei_receive - receive some packets + * @dev: network device with which receive will be run + * + * We have a good packet(s), get it/them out of the buffers. + * Called with lock held. + */ + +static void ei_receive(struct net_device *dev) +{ + long e8390_base = dev->base_addr; + struct ei_device *ei_local = netdev_priv(dev); + unsigned char rxing_page, this_frame, next_frame; + unsigned short current_offset; + int rx_pkt_count = 0; + struct e8390_pkt_hdr rx_frame; + + while (++rx_pkt_count < 10) + { + int pkt_len, pkt_stat; + + /* Get the rx page (incoming packet pointer). */ + rxing_page = inb_p(e8390_base + EN1_CURPAG -1); + + /* Remove one frame from the ring. Boundary is always a page behind. */ + this_frame = inb_p(e8390_base + EN0_BOUNDARY) + 1; + if (this_frame >= ei_local->stop_page) + this_frame = ei_local->rx_start_page; + + /* Someday we'll omit the previous, iff we never get this message. + (There is at least one clone claimed to have a problem.) + + Keep quiet if it looks like a card removal. One problem here + is that some clones crash in roughly the same way. + */ + if (ei_debug > 0 && this_frame != ei_local->current_page && (this_frame!=0x0 || rxing_page!=0xFF)) + netdev_err(dev, "mismatched read page pointers %2x vs %2x\n", + this_frame, ei_local->current_page); + + if (this_frame == rxing_page) /* Read all the frames? */ + break; /* Done for now */ + + current_offset = this_frame << 8; + ei_get_8390_hdr(dev, &rx_frame, this_frame); + + pkt_len = rx_frame.count - sizeof(struct e8390_pkt_hdr); + pkt_stat = rx_frame.status; + + next_frame = this_frame + 1 + ((pkt_len+4)>>8); + + if (pkt_len < 60 || pkt_len > 1518) + { + if (ei_debug) + netdev_printk(KERN_DEBUG, dev, + "bogus packet size: %d, status=%#2x nxpg=%#2x\n", + rx_frame.count, rx_frame.status, + rx_frame.next); + dev->stats.rx_errors++; + dev->stats.rx_length_errors++; + } + else if ((pkt_stat & 0x0F) == ENRSR_RXOK) + { + struct sk_buff *skb; + + skb = dev_alloc_skb(pkt_len+2); + if (skb == NULL) + { + if (ei_debug > 1) + netdev_printk(KERN_DEBUG, dev, + "Couldn't allocate a sk_buff of size %d\n", + pkt_len); + dev->stats.rx_dropped++; + break; + } + else + { + skb_reserve(skb,2); /* IP headers on 16 byte boundaries */ + skb_put(skb, pkt_len); /* Make room */ + ei_block_input(dev, pkt_len, skb, current_offset + sizeof(rx_frame)); + skb->protocol=eth_type_trans(skb,dev); + netif_rx(skb); + dev->stats.rx_packets++; + dev->stats.rx_bytes += pkt_len; + if (pkt_stat & ENRSR_PHY) + dev->stats.multicast++; + } + } + else + { + if (ei_debug) + netdev_printk(KERN_DEBUG, dev, + "bogus packet: status=%#2x nxpg=%#2x size=%d\n", + rx_frame.status, rx_frame.next, + rx_frame.count); + dev->stats.rx_errors++; + /* NB: The NIC counts CRC, frame and missed errors. */ + if (pkt_stat & ENRSR_FO) + dev->stats.rx_fifo_errors++; + } + next_frame = rx_frame.next; + + /* This _should_ never happen: it's here for avoiding bad clones. */ + if (next_frame >= ei_local->stop_page) { + netdev_info(dev, "next frame inconsistency, %#2x\n", + next_frame); + next_frame = ei_local->rx_start_page; + } + ei_local->current_page = next_frame; + outb_p(next_frame-1, e8390_base+EN0_BOUNDARY); + } +} + +/** + * ei_rx_overrun - handle receiver overrun + * @dev: network device which threw exception + * + * We have a receiver overrun: we have to kick the 8390 to get it started + * again. Problem is that you have to kick it exactly as NS prescribes in + * the updated datasheets, or "the NIC may act in an unpredictable manner." + * This includes causing "the NIC to defer indefinitely when it is stopped + * on a busy network." Ugh. + * Called with lock held. Don't call this with the interrupts off or your + * computer will hate you - it takes 10ms or so. + */ + +static void ei_rx_overrun(struct net_device *dev) +{ + axnet_dev_t *info = PRIV(dev); + long e8390_base = dev->base_addr; + unsigned char was_txing, must_resend = 0; + + /* + * Record whether a Tx was in progress and then issue the + * stop command. + */ + was_txing = inb_p(e8390_base+E8390_CMD) & E8390_TRANS; + outb_p(E8390_NODMA+E8390_PAGE0+E8390_STOP, e8390_base+E8390_CMD); + + if (ei_debug > 1) + netdev_printk(KERN_DEBUG, dev, "Receiver overrun\n"); + dev->stats.rx_over_errors++; + + /* + * Wait a full Tx time (1.2ms) + some guard time, NS says 1.6ms total. + * We wait at least 2ms. + */ + + mdelay(2); + + /* + * Reset RBCR[01] back to zero as per magic incantation. + */ + outb_p(0x00, e8390_base+EN0_RCNTLO); + outb_p(0x00, e8390_base+EN0_RCNTHI); + + /* + * See if any Tx was interrupted or not. According to NS, this + * step is vital, and skipping it will cause no end of havoc. + */ + + if (was_txing) + { + unsigned char tx_completed = inb_p(e8390_base+EN0_ISR) & (ENISR_TX+ENISR_TX_ERR); + if (!tx_completed) + must_resend = 1; + } + + /* + * Have to enter loopback mode and then restart the NIC before + * you are allowed to slurp packets up off the ring. + */ + outb_p(E8390_TXOFF, e8390_base + EN0_TXCR); + outb_p(E8390_NODMA + E8390_PAGE0 + E8390_START, e8390_base + E8390_CMD); + + /* + * Clear the Rx ring of all the debris, and ack the interrupt. + */ + ei_receive(dev); + + /* + * Leave loopback mode, and resend any packet that got stopped. + */ + outb_p(E8390_TXCONFIG | info->duplex_flag, e8390_base + EN0_TXCR); + if (must_resend) + outb_p(E8390_NODMA + E8390_PAGE0 + E8390_START + E8390_TRANS, e8390_base + E8390_CMD); +} + +/* + * Collect the stats. This is called unlocked and from several contexts. + */ + +static struct net_device_stats *get_stats(struct net_device *dev) +{ + long ioaddr = dev->base_addr; + struct ei_device *ei_local = netdev_priv(dev); + unsigned long flags; + + /* If the card is stopped, just return the present stats. */ + if (!netif_running(dev)) + return &dev->stats; + + spin_lock_irqsave(&ei_local->page_lock,flags); + /* Read the counter registers, assuming we are in page 0. */ + dev->stats.rx_frame_errors += inb_p(ioaddr + EN0_COUNTER0); + dev->stats.rx_crc_errors += inb_p(ioaddr + EN0_COUNTER1); + dev->stats.rx_missed_errors+= inb_p(ioaddr + EN0_COUNTER2); + spin_unlock_irqrestore(&ei_local->page_lock, flags); + + return &dev->stats; +} + +/* + * Form the 64 bit 8390 multicast table from the linked list of addresses + * associated with this dev structure. + */ + +static inline void make_mc_bits(u8 *bits, struct net_device *dev) +{ + struct netdev_hw_addr *ha; + u32 crc; + + netdev_for_each_mc_addr(ha, dev) { + crc = ether_crc(ETH_ALEN, ha->addr); + /* + * The 8390 uses the 6 most significant bits of the + * CRC to index the multicast table. + */ + bits[crc>>29] |= (1<<((crc>>26)&7)); + } +} + +/** + * do_set_multicast_list - set/clear multicast filter + * @dev: net device for which multicast filter is adjusted + * + * Set or clear the multicast filter for this adaptor. + * Must be called with lock held. + */ + +static void do_set_multicast_list(struct net_device *dev) +{ + long e8390_base = dev->base_addr; + int i; + struct ei_device *ei_local = netdev_priv(dev); + + if (!(dev->flags&(IFF_PROMISC|IFF_ALLMULTI))) { + memset(ei_local->mcfilter, 0, 8); + if (!netdev_mc_empty(dev)) + make_mc_bits(ei_local->mcfilter, dev); + } else { + /* set to accept-all */ + memset(ei_local->mcfilter, 0xFF, 8); + } + + outb_p(E8390_NODMA + E8390_PAGE1, e8390_base + E8390_CMD); + for(i = 0; i < 8; i++) + { + outb_p(ei_local->mcfilter[i], e8390_base + EN1_MULT_SHIFT(i)); + } + outb_p(E8390_NODMA + E8390_PAGE0, e8390_base + E8390_CMD); + + if(dev->flags&IFF_PROMISC) + outb_p(E8390_RXCONFIG | 0x58, e8390_base + EN0_RXCR); + else if (dev->flags & IFF_ALLMULTI || !netdev_mc_empty(dev)) + outb_p(E8390_RXCONFIG | 0x48, e8390_base + EN0_RXCR); + else + outb_p(E8390_RXCONFIG | 0x40, e8390_base + EN0_RXCR); + + outb_p(E8390_NODMA+E8390_PAGE0+E8390_START, e8390_base+E8390_CMD); +} + +/* + * Called without lock held. This is invoked from user context and may + * be parallel to just about everything else. Its also fairly quick and + * not called too often. Must protect against both bh and irq users + */ + +static void set_multicast_list(struct net_device *dev) +{ + unsigned long flags; + + spin_lock_irqsave(&dev_lock(dev), flags); + do_set_multicast_list(dev); + spin_unlock_irqrestore(&dev_lock(dev), flags); +} + +/* This page of functions should be 8390 generic */ +/* Follow National Semi's recommendations for initializing the "NIC". */ + +/** + * AX88190_init - initialize 8390 hardware + * @dev: network device to initialize + * @startp: boolean. non-zero value to initiate chip processing + * + * Must be called with lock held. + */ + +static void AX88190_init(struct net_device *dev, int startp) +{ + axnet_dev_t *info = PRIV(dev); + long e8390_base = dev->base_addr; + struct ei_device *ei_local = netdev_priv(dev); + int i; + int endcfg = ei_local->word16 ? (0x48 | ENDCFG_WTS) : 0x48; + + if(sizeof(struct e8390_pkt_hdr)!=4) + panic("8390.c: header struct mispacked\n"); + /* Follow National Semi's recommendations for initing the DP83902. */ + outb_p(E8390_NODMA+E8390_PAGE0+E8390_STOP, e8390_base+E8390_CMD); /* 0x21 */ + outb_p(endcfg, e8390_base + EN0_DCFG); /* 0x48 or 0x49 */ + /* Clear the remote byte count registers. */ + outb_p(0x00, e8390_base + EN0_RCNTLO); + outb_p(0x00, e8390_base + EN0_RCNTHI); + /* Set to monitor and loopback mode -- this is vital!. */ + outb_p(E8390_RXOFF|0x40, e8390_base + EN0_RXCR); /* 0x60 */ + outb_p(E8390_TXOFF, e8390_base + EN0_TXCR); /* 0x02 */ + /* Set the transmit page and receive ring. */ + outb_p(ei_local->tx_start_page, e8390_base + EN0_TPSR); + ei_local->tx1 = ei_local->tx2 = 0; + outb_p(ei_local->rx_start_page, e8390_base + EN0_STARTPG); + outb_p(ei_local->stop_page-1, e8390_base + EN0_BOUNDARY); /* 3c503 says 0x3f,NS0x26*/ + ei_local->current_page = ei_local->rx_start_page; /* assert boundary+1 */ + outb_p(ei_local->stop_page, e8390_base + EN0_STOPPG); + /* Clear the pending interrupts and mask. */ + outb_p(0xFF, e8390_base + EN0_ISR); + outb_p(0x00, e8390_base + EN0_IMR); + + /* Copy the station address into the DS8390 registers. */ + + outb_p(E8390_NODMA + E8390_PAGE1 + E8390_STOP, e8390_base+E8390_CMD); /* 0x61 */ + for(i = 0; i < 6; i++) + { + outb_p(dev->dev_addr[i], e8390_base + EN1_PHYS_SHIFT(i)); + if(inb_p(e8390_base + EN1_PHYS_SHIFT(i))!=dev->dev_addr[i]) + netdev_err(dev, "Hw. address read/write mismap %d\n", i); + } + + outb_p(ei_local->rx_start_page, e8390_base + EN1_CURPAG); + outb_p(E8390_NODMA+E8390_PAGE0+E8390_STOP, e8390_base+E8390_CMD); + + netif_start_queue(dev); + ei_local->tx1 = ei_local->tx2 = 0; + ei_local->txing = 0; + + if (info->flags & IS_AX88790) /* select Internal PHY */ + outb(0x10, e8390_base + AXNET_GPIO); + + if (startp) + { + outb_p(0xff, e8390_base + EN0_ISR); + outb_p(ENISR_ALL, e8390_base + EN0_IMR); + outb_p(E8390_NODMA+E8390_PAGE0+E8390_START, e8390_base+E8390_CMD); + outb_p(E8390_TXCONFIG | info->duplex_flag, + e8390_base + EN0_TXCR); /* xmit on. */ + /* 3c503 TechMan says rxconfig only after the NIC is started. */ + outb_p(E8390_RXCONFIG | 0x40, e8390_base + EN0_RXCR); /* rx on, */ + do_set_multicast_list(dev); /* (re)load the mcast table */ + } +} + +/* Trigger a transmit start, assuming the length is valid. + Always called with the page lock held */ + +static void NS8390_trigger_send(struct net_device *dev, unsigned int length, + int start_page) +{ + long e8390_base = dev->base_addr; + struct ei_device *ei_local __attribute((unused)) = netdev_priv(dev); + + if (inb_p(e8390_base) & E8390_TRANS) + { + netdev_warn(dev, "trigger_send() called with the transmitter busy\n"); + return; + } + outb_p(length & 0xff, e8390_base + EN0_TCNTLO); + outb_p(length >> 8, e8390_base + EN0_TCNTHI); + outb_p(start_page, e8390_base + EN0_TPSR); + outb_p(E8390_NODMA+E8390_TRANS+E8390_START, e8390_base+E8390_CMD); +} diff --git a/drivers/net/ethernet/8390/e2100.c b/drivers/net/ethernet/8390/e2100.c new file mode 100644 index 000000000000..d50a9998ae77 --- /dev/null +++ b/drivers/net/ethernet/8390/e2100.c @@ -0,0 +1,490 @@ +/* e2100.c: A Cabletron E2100 series ethernet driver for linux. */ +/* + Written 1993-1994 by Donald Becker. + + Copyright 1994 by Donald Becker. + Copyright 1993 United States Government as represented by the + Director, National Security Agency. This software may be used and + distributed according to the terms of the GNU General Public License, + incorporated herein by reference. + + This is a driver for the Cabletron E2100 series ethercards. + + The Author may be reached as becker@scyld.com, or C/O + Scyld Computing Corporation + 410 Severn Ave., Suite 210 + Annapolis MD 21403 + + The E2100 series ethercard is a fairly generic shared memory 8390 + implementation. The only unusual aspect is the way the shared memory + registers are set: first you do an inb() in what is normally the + station address region, and the low three bits of next outb() *address* + is used as the write value for that register. Either someone wasn't + too used to dem bit en bites, or they were trying to obfuscate the + programming interface. + + There is an additional complication when setting the window on the packet + buffer. You must first do a read into the packet buffer region with the + low 8 address bits the address setting the page for the start of the packet + buffer window, and then do the above operation. See mem_on() for details. + + One bug on the chip is that even a hard reset won't disable the memory + window, usually resulting in a hung machine if mem_off() isn't called. + If this happens, you must power down the machine for about 30 seconds. +*/ + +static const char version[] = + "e2100.c:v1.01 7/21/94 Donald Becker (becker@cesdis.gsfc.nasa.gov)\n"; + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/string.h> +#include <linux/ioport.h> +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/delay.h> + +#include <asm/io.h> +#include <asm/system.h> + +#include "8390.h" + +#define DRV_NAME "e2100" + +static int e21_probe_list[] = {0x300, 0x280, 0x380, 0x220, 0}; + +/* Offsets from the base_addr. + Read from the ASIC register, and the low three bits of the next outb() + address is used to set the corresponding register. */ +#define E21_NIC_OFFSET 0 /* Offset to the 8390 NIC. */ +#define E21_ASIC 0x10 +#define E21_MEM_ENABLE 0x10 +#define E21_MEM_ON 0x05 /* Enable memory in 16 bit mode. */ +#define E21_MEM_ON_8 0x07 /* Enable memory in 8 bit mode. */ +#define E21_MEM_BASE 0x11 +#define E21_IRQ_LOW 0x12 /* The low three bits of the IRQ number. */ +#define E21_IRQ_HIGH 0x14 /* The high IRQ bit and media select ... */ +#define E21_MEDIA 0x14 /* (alias). */ +#define E21_ALT_IFPORT 0x02 /* Set to use the other (BNC,AUI) port. */ +#define E21_BIG_MEM 0x04 /* Use a bigger (64K) buffer (we don't) */ +#define E21_SAPROM 0x10 /* Offset to station address data. */ +#define E21_IO_EXTENT 0x20 + +static inline void mem_on(short port, volatile char __iomem *mem_base, + unsigned char start_page ) +{ + /* This is a little weird: set the shared memory window by doing a + read. The low address bits specify the starting page. */ + readb(mem_base+start_page); + inb(port + E21_MEM_ENABLE); + outb(E21_MEM_ON, port + E21_MEM_ENABLE + E21_MEM_ON); +} + +static inline void mem_off(short port) +{ + inb(port + E21_MEM_ENABLE); + outb(0x00, port + E21_MEM_ENABLE); +} + +/* In other drivers I put the TX pages first, but the E2100 window circuitry + is designed to have a 4K Tx region last. The windowing circuitry wraps the + window at 0x2fff->0x0000 so that the packets at e.g. 0x2f00 in the RX ring + appear contiguously in the window. */ +#define E21_RX_START_PG 0x00 /* First page of RX buffer */ +#define E21_RX_STOP_PG 0x30 /* Last page +1 of RX ring */ +#define E21_BIG_RX_STOP_PG 0xF0 /* Last page +1 of RX ring */ +#define E21_TX_START_PG E21_RX_STOP_PG /* First page of TX buffer */ + +static int e21_probe1(struct net_device *dev, int ioaddr); + +static int e21_open(struct net_device *dev); +static void e21_reset_8390(struct net_device *dev); +static void e21_block_input(struct net_device *dev, int count, + struct sk_buff *skb, int ring_offset); +static void e21_block_output(struct net_device *dev, int count, + const unsigned char *buf, int start_page); +static void e21_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, + int ring_page); +static int e21_open(struct net_device *dev); +static int e21_close(struct net_device *dev); + + +/* Probe for the E2100 series ethercards. These cards have an 8390 at the + base address and the station address at both offset 0x10 and 0x18. I read + the station address from offset 0x18 to avoid the dataport of NE2000 + ethercards, and look for Ctron's unique ID (first three octets of the + station address). + */ + +static int __init do_e2100_probe(struct net_device *dev) +{ + int *port; + int base_addr = dev->base_addr; + int irq = dev->irq; + + if (base_addr > 0x1ff) /* Check a single specified location. */ + return e21_probe1(dev, base_addr); + else if (base_addr != 0) /* Don't probe at all. */ + return -ENXIO; + + for (port = e21_probe_list; *port; port++) { + dev->irq = irq; + if (e21_probe1(dev, *port) == 0) + return 0; + } + + return -ENODEV; +} + +#ifndef MODULE +struct net_device * __init e2100_probe(int unit) +{ + struct net_device *dev = alloc_ei_netdev(); + int err; + + if (!dev) + return ERR_PTR(-ENOMEM); + + sprintf(dev->name, "eth%d", unit); + netdev_boot_setup_check(dev); + + err = do_e2100_probe(dev); + if (err) + goto out; + return dev; +out: + free_netdev(dev); + return ERR_PTR(err); +} +#endif + +static const struct net_device_ops e21_netdev_ops = { + .ndo_open = e21_open, + .ndo_stop = e21_close, + + .ndo_start_xmit = ei_start_xmit, + .ndo_tx_timeout = ei_tx_timeout, + .ndo_get_stats = ei_get_stats, + .ndo_set_multicast_list = ei_set_multicast_list, + .ndo_validate_addr = eth_validate_addr, + .ndo_set_mac_address = eth_mac_addr, + .ndo_change_mtu = eth_change_mtu, +#ifdef CONFIG_NET_POLL_CONTROLLER + .ndo_poll_controller = ei_poll, +#endif +}; + +static int __init e21_probe1(struct net_device *dev, int ioaddr) +{ + int i, status, retval; + unsigned char *station_addr = dev->dev_addr; + static unsigned version_printed; + + if (!request_region(ioaddr, E21_IO_EXTENT, DRV_NAME)) + return -EBUSY; + + /* First check the station address for the Ctron prefix. */ + if (inb(ioaddr + E21_SAPROM + 0) != 0x00 || + inb(ioaddr + E21_SAPROM + 1) != 0x00 || + inb(ioaddr + E21_SAPROM + 2) != 0x1d) { + retval = -ENODEV; + goto out; + } + + /* Verify by making certain that there is a 8390 at there. */ + outb(E8390_NODMA + E8390_STOP, ioaddr); + udelay(1); /* we want to delay one I/O cycle - which is 2MHz */ + status = inb(ioaddr); + if (status != 0x21 && status != 0x23) { + retval = -ENODEV; + goto out; + } + + /* Read the station address PROM. */ + for (i = 0; i < 6; i++) + station_addr[i] = inb(ioaddr + E21_SAPROM + i); + + inb(ioaddr + E21_MEDIA); /* Point to media selection. */ + outb(0, ioaddr + E21_ASIC); /* and disable the secondary interface. */ + + if (ei_debug && version_printed++ == 0) + printk(version); + + for (i = 0; i < 6; i++) + printk(" %02X", station_addr[i]); + + if (dev->irq < 2) { + static const int irqlist[] = {15, 11, 10, 12, 5, 9, 3, 4}; + for (i = 0; i < ARRAY_SIZE(irqlist); i++) + if (request_irq (irqlist[i], NULL, 0, "bogus", NULL) != -EBUSY) { + dev->irq = irqlist[i]; + break; + } + if (i >= ARRAY_SIZE(irqlist)) { + printk(" unable to get IRQ %d.\n", dev->irq); + retval = -EAGAIN; + goto out; + } + } else if (dev->irq == 2) /* Fixup luser bogosity: IRQ2 is really IRQ9 */ + dev->irq = 9; + + /* The 8390 is at the base address. */ + dev->base_addr = ioaddr; + + ei_status.name = "E2100"; + ei_status.word16 = 1; + ei_status.tx_start_page = E21_TX_START_PG; + ei_status.rx_start_page = E21_RX_START_PG; + ei_status.stop_page = E21_RX_STOP_PG; + ei_status.saved_irq = dev->irq; + + /* Check the media port used. The port can be passed in on the + low mem_end bits. */ + if (dev->mem_end & 15) + dev->if_port = dev->mem_end & 7; + else { + dev->if_port = 0; + inb(ioaddr + E21_MEDIA); /* Turn automatic media detection on. */ + for(i = 0; i < 6; i++) + if (station_addr[i] != inb(ioaddr + E21_SAPROM + 8 + i)) { + dev->if_port = 1; + break; + } + } + + /* Never map in the E21 shared memory unless you are actively using it. + Also, the shared memory has effective only one setting -- spread all + over the 128K region! */ + if (dev->mem_start == 0) + dev->mem_start = 0xd0000; + + ei_status.mem = ioremap(dev->mem_start, 2*1024); + if (!ei_status.mem) { + printk("unable to remap memory\n"); + retval = -EAGAIN; + goto out; + } + +#ifdef notdef + /* These values are unused. The E2100 has a 2K window into the packet + buffer. The window can be set to start on any page boundary. */ + ei_status.rmem_start = dev->mem_start + TX_PAGES*256; + dev->mem_end = ei_status.rmem_end = dev->mem_start + 2*1024; +#endif + + printk(", IRQ %d, %s media, memory @ %#lx.\n", dev->irq, + dev->if_port ? "secondary" : "primary", dev->mem_start); + + ei_status.reset_8390 = &e21_reset_8390; + ei_status.block_input = &e21_block_input; + ei_status.block_output = &e21_block_output; + ei_status.get_8390_hdr = &e21_get_8390_hdr; + + dev->netdev_ops = &e21_netdev_ops; + NS8390_init(dev, 0); + + retval = register_netdev(dev); + if (retval) + goto out; + return 0; +out: + release_region(ioaddr, E21_IO_EXTENT); + return retval; +} + +static int +e21_open(struct net_device *dev) +{ + short ioaddr = dev->base_addr; + int retval; + + if ((retval = request_irq(dev->irq, ei_interrupt, 0, dev->name, dev))) + return retval; + + /* Set the interrupt line and memory base on the hardware. */ + inb(ioaddr + E21_IRQ_LOW); + outb(0, ioaddr + E21_ASIC + (dev->irq & 7)); + inb(ioaddr + E21_IRQ_HIGH); /* High IRQ bit, and if_port. */ + outb(0, ioaddr + E21_ASIC + (dev->irq > 7 ? 1:0) + + (dev->if_port ? E21_ALT_IFPORT : 0)); + inb(ioaddr + E21_MEM_BASE); + outb(0, ioaddr + E21_ASIC + ((dev->mem_start >> 17) & 7)); + + ei_open(dev); + return 0; +} + +static void +e21_reset_8390(struct net_device *dev) +{ + short ioaddr = dev->base_addr; + + outb(0x01, ioaddr); + if (ei_debug > 1) printk("resetting the E2180x3 t=%ld...", jiffies); + ei_status.txing = 0; + + /* Set up the ASIC registers, just in case something changed them. */ + + if (ei_debug > 1) printk("reset done\n"); +} + +/* Grab the 8390 specific header. We put the 2k window so the header page + appears at the start of the shared memory. */ + +static void +e21_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page) +{ + + short ioaddr = dev->base_addr; + char __iomem *shared_mem = ei_status.mem; + + mem_on(ioaddr, shared_mem, ring_page); + +#ifdef notdef + /* Officially this is what we are doing, but the readl() is faster */ + memcpy_fromio(hdr, shared_mem, sizeof(struct e8390_pkt_hdr)); +#else + ((unsigned int*)hdr)[0] = readl(shared_mem); +#endif + + /* Turn off memory access: we would need to reprogram the window anyway. */ + mem_off(ioaddr); + +} + +/* Block input and output are easy on shared memory ethercards. + The E21xx makes block_input() especially easy by wrapping the top + ring buffer to the bottom automatically. */ +static void +e21_block_input(struct net_device *dev, int count, struct sk_buff *skb, int ring_offset) +{ + short ioaddr = dev->base_addr; + char __iomem *shared_mem = ei_status.mem; + + mem_on(ioaddr, shared_mem, (ring_offset>>8)); + + memcpy_fromio(skb->data, ei_status.mem + (ring_offset & 0xff), count); + + mem_off(ioaddr); +} + +static void +e21_block_output(struct net_device *dev, int count, const unsigned char *buf, + int start_page) +{ + short ioaddr = dev->base_addr; + volatile char __iomem *shared_mem = ei_status.mem; + + /* Set the shared memory window start by doing a read, with the low address + bits specifying the starting page. */ + readb(shared_mem + start_page); + mem_on(ioaddr, shared_mem, start_page); + + memcpy_toio(shared_mem, buf, count); + mem_off(ioaddr); +} + +static int +e21_close(struct net_device *dev) +{ + short ioaddr = dev->base_addr; + + if (ei_debug > 1) + printk("%s: Shutting down ethercard.\n", dev->name); + + free_irq(dev->irq, dev); + dev->irq = ei_status.saved_irq; + + /* Shut off the interrupt line and secondary interface. */ + inb(ioaddr + E21_IRQ_LOW); + outb(0, ioaddr + E21_ASIC); + inb(ioaddr + E21_IRQ_HIGH); /* High IRQ bit, and if_port. */ + outb(0, ioaddr + E21_ASIC); + + ei_close(dev); + + /* Double-check that the memory has been turned off, because really + really bad things happen if it isn't. */ + mem_off(ioaddr); + + return 0; +} + + +#ifdef MODULE +#define MAX_E21_CARDS 4 /* Max number of E21 cards per module */ +static struct net_device *dev_e21[MAX_E21_CARDS]; +static int io[MAX_E21_CARDS]; +static int irq[MAX_E21_CARDS]; +static int mem[MAX_E21_CARDS]; +static int xcvr[MAX_E21_CARDS]; /* choose int. or ext. xcvr */ + +module_param_array(io, int, NULL, 0); +module_param_array(irq, int, NULL, 0); +module_param_array(mem, int, NULL, 0); +module_param_array(xcvr, int, NULL, 0); +MODULE_PARM_DESC(io, "I/O base address(es)"); +MODULE_PARM_DESC(irq, "IRQ number(s)"); +MODULE_PARM_DESC(mem, " memory base address(es)"); +MODULE_PARM_DESC(xcvr, "transceiver(s) (0=internal, 1=external)"); +MODULE_DESCRIPTION("Cabletron E2100 ISA ethernet driver"); +MODULE_LICENSE("GPL"); + +/* This is set up so that only a single autoprobe takes place per call. +ISA device autoprobes on a running machine are not recommended. */ + +int __init init_module(void) +{ + struct net_device *dev; + int this_dev, found = 0; + + for (this_dev = 0; this_dev < MAX_E21_CARDS; this_dev++) { + if (io[this_dev] == 0) { + if (this_dev != 0) break; /* only autoprobe 1st one */ + printk(KERN_NOTICE "e2100.c: Presently autoprobing (not recommended) for a single card.\n"); + } + dev = alloc_ei_netdev(); + if (!dev) + break; + dev->irq = irq[this_dev]; + dev->base_addr = io[this_dev]; + dev->mem_start = mem[this_dev]; + dev->mem_end = xcvr[this_dev]; /* low 4bits = xcvr sel. */ + if (do_e2100_probe(dev) == 0) { + dev_e21[found++] = dev; + continue; + } + free_netdev(dev); + printk(KERN_WARNING "e2100.c: No E2100 card found (i/o = 0x%x).\n", io[this_dev]); + break; + } + if (found) + return 0; + return -ENXIO; +} + +static void cleanup_card(struct net_device *dev) +{ + /* NB: e21_close() handles free_irq */ + iounmap(ei_status.mem); + release_region(dev->base_addr, E21_IO_EXTENT); +} + +void __exit +cleanup_module(void) +{ + int this_dev; + + for (this_dev = 0; this_dev < MAX_E21_CARDS; this_dev++) { + struct net_device *dev = dev_e21[this_dev]; + if (dev) { + unregister_netdev(dev); + cleanup_card(dev); + free_netdev(dev); + } + } +} +#endif /* MODULE */ diff --git a/drivers/net/ethernet/8390/es3210.c b/drivers/net/ethernet/8390/es3210.c new file mode 100644 index 000000000000..7a09575ecff0 --- /dev/null +++ b/drivers/net/ethernet/8390/es3210.c @@ -0,0 +1,446 @@ +/* + es3210.c + + Linux driver for Racal-Interlan ES3210 EISA Network Adapter + + Copyright (C) 1996, Paul Gortmaker. + + This software may be used and distributed according to the terms + of the GNU General Public License, incorporated herein by reference. + + Information and Code Sources: + + 1) The existing myriad of Linux 8390 drivers written by Donald Becker. + + 2) Once again Russ Nelson's asm packet driver provided additional info. + + 3) Info for getting IRQ and sh-mem gleaned from the EISA cfg files. + Too bad it doesn't work -- see below. + + The ES3210 is an EISA shared memory NS8390 implementation. Note + that all memory copies to/from the board must be 32bit transfers. + Which rules out using eth_io_copy_and_sum() in this driver. + + Apparently there are two slightly different revisions of the + card, since there are two distinct EISA cfg files (!rii0101.cfg + and !rii0102.cfg) One has media select in the cfg file and the + other doesn't. Hopefully this will work with either. + + That is about all I can tell you about it, having never actually + even seen one of these cards. :) Try http://www.interlan.com + if you want more info. + + Thanks go to Mark Salazar for testing v0.02 of this driver. + + Bugs, to-fix, etc: + + 1) The EISA cfg ports that are *supposed* to have the IRQ and shared + mem values just read 0xff all the time. Hrrmpf. Apparently the + same happens with the packet driver as the code for reading + these registers is disabled there. In the meantime, boot with: + ether=<IRQ>,0,0x<shared_mem_addr>,eth0 to override the IRQ and + shared memory detection. (The i/o port detection is okay.) + + 2) Module support currently untested. Probably works though. + +*/ + +static const char version[] = + "es3210.c: Driver revision v0.03, 14/09/96\n"; + +#include <linux/module.h> +#include <linux/eisa.h> +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/string.h> +#include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/netdevice.h> +#include <linux/etherdevice.h> + +#include <asm/io.h> +#include <asm/system.h> + +#include "8390.h" + +static int es_probe1(struct net_device *dev, int ioaddr); + +static void es_reset_8390(struct net_device *dev); + +static void es_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page); +static void es_block_input(struct net_device *dev, int count, struct sk_buff *skb, int ring_offset); +static void es_block_output(struct net_device *dev, int count, const unsigned char *buf, int start_page); + +#define ES_START_PG 0x00 /* First page of TX buffer */ +#define ES_STOP_PG 0x40 /* Last page +1 of RX ring */ + +#define ES_IO_EXTENT 0x37 /* The cfg file says 0xc90 -> 0xcc7 */ +#define ES_ID_PORT 0xc80 /* Same for all EISA cards */ +#define ES_SA_PROM 0xc90 /* Start of e'net addr. */ +#define ES_RESET_PORT 0xc84 /* From the packet driver source */ +#define ES_NIC_OFFSET 0xca0 /* Hello, the 8390 is *here* */ + +#define ES_ADDR0 0x02 /* 3 byte vendor prefix */ +#define ES_ADDR1 0x07 +#define ES_ADDR2 0x01 + +/* + * Two card revisions. EISA ID's are always rev. minor, rev. major,, and + * then the three vendor letters stored in 5 bits each, with an "a" = 1. + * For eg: "rii" = 10010 01001 01001 = 0x4929, which is how the EISA + * config utility determines automagically what config file(s) to use. + */ +#define ES_EISA_ID1 0x01012949 /* !rii0101.cfg */ +#define ES_EISA_ID2 0x02012949 /* !rii0102.cfg */ + +#define ES_CFG1 0xcc0 /* IOPORT(1) --> IOPORT(6) in cfg file */ +#define ES_CFG2 0xcc1 +#define ES_CFG3 0xcc2 +#define ES_CFG4 0xcc3 +#define ES_CFG5 0xcc4 +#define ES_CFG6 0xc84 /* NB: 0xc84 is also "reset" port. */ + +/* + * You can OR any of the following bits together and assign it + * to ES_DEBUG to get verbose driver info during operation. + * Some of these don't do anything yet. + */ + +#define ES_D_PROBE 0x01 +#define ES_D_RX_PKT 0x02 +#define ES_D_TX_PKT 0x04 +#define ED_D_IRQ 0x08 + +#define ES_DEBUG 0 + +static unsigned char lo_irq_map[] __initdata = {3, 4, 5, 6, 7, 9, 10}; +static unsigned char hi_irq_map[] __initdata = {11, 12, 0, 14, 0, 0, 0, 15}; + +/* + * Probe for the card. The best way is to read the EISA ID if it + * is known. Then we check the prefix of the station address + * PROM for a match against the Racal-Interlan assigned value. + */ + +static int __init do_es_probe(struct net_device *dev) +{ + unsigned short ioaddr = dev->base_addr; + int irq = dev->irq; + int mem_start = dev->mem_start; + + if (ioaddr > 0x1ff) /* Check a single specified location. */ + return es_probe1(dev, ioaddr); + else if (ioaddr > 0) /* Don't probe at all. */ + return -ENXIO; + + if (!EISA_bus) { +#if ES_DEBUG & ES_D_PROBE + printk("es3210.c: Not EISA bus. Not probing high ports.\n"); +#endif + return -ENXIO; + } + + /* EISA spec allows for up to 16 slots, but 8 is typical. */ + for (ioaddr = 0x1000; ioaddr < 0x9000; ioaddr += 0x1000) { + if (es_probe1(dev, ioaddr) == 0) + return 0; + dev->irq = irq; + dev->mem_start = mem_start; + } + + return -ENODEV; +} + +#ifndef MODULE +struct net_device * __init es_probe(int unit) +{ + struct net_device *dev = alloc_ei_netdev(); + int err; + + if (!dev) + return ERR_PTR(-ENOMEM); + + sprintf(dev->name, "eth%d", unit); + netdev_boot_setup_check(dev); + + err = do_es_probe(dev); + if (err) + goto out; + return dev; +out: + free_netdev(dev); + return ERR_PTR(err); +} +#endif + +static int __init es_probe1(struct net_device *dev, int ioaddr) +{ + int i, retval; + unsigned long eisa_id; + + if (!request_region(ioaddr + ES_SA_PROM, ES_IO_EXTENT, "es3210")) + return -ENODEV; + +#if ES_DEBUG & ES_D_PROBE + printk("es3210.c: probe at %#x, ID %#8x\n", ioaddr, inl(ioaddr + ES_ID_PORT)); + printk("es3210.c: config regs: %#x %#x %#x %#x %#x %#x\n", + inb(ioaddr + ES_CFG1), inb(ioaddr + ES_CFG2), inb(ioaddr + ES_CFG3), + inb(ioaddr + ES_CFG4), inb(ioaddr + ES_CFG5), inb(ioaddr + ES_CFG6)); +#endif + +/* Check the EISA ID of the card. */ + eisa_id = inl(ioaddr + ES_ID_PORT); + if ((eisa_id != ES_EISA_ID1) && (eisa_id != ES_EISA_ID2)) { + retval = -ENODEV; + goto out; + } + + for (i = 0; i < ETHER_ADDR_LEN ; i++) + dev->dev_addr[i] = inb(ioaddr + ES_SA_PROM + i); + +/* Check the Racal vendor ID as well. */ + if (dev->dev_addr[0] != ES_ADDR0 || + dev->dev_addr[1] != ES_ADDR1 || + dev->dev_addr[2] != ES_ADDR2) { + printk("es3210.c: card not found %pM (invalid_prefix).\n", + dev->dev_addr); + retval = -ENODEV; + goto out; + } + + printk("es3210.c: ES3210 rev. %ld at %#x, node %pM", + eisa_id>>24, ioaddr, dev->dev_addr); + + /* Snarf the interrupt now. */ + if (dev->irq == 0) { + unsigned char hi_irq = inb(ioaddr + ES_CFG2) & 0x07; + unsigned char lo_irq = inb(ioaddr + ES_CFG1) & 0xfe; + + if (hi_irq != 0) { + dev->irq = hi_irq_map[hi_irq - 1]; + } else { + int i = 0; + while (lo_irq > (1<<i)) i++; + dev->irq = lo_irq_map[i]; + } + printk(" using IRQ %d", dev->irq); +#if ES_DEBUG & ES_D_PROBE + printk("es3210.c: hi_irq %#x, lo_irq %#x, dev->irq = %d\n", + hi_irq, lo_irq, dev->irq); +#endif + } else { + if (dev->irq == 2) + dev->irq = 9; /* Doh! */ + printk(" assigning IRQ %d", dev->irq); + } + + if (request_irq(dev->irq, ei_interrupt, 0, "es3210", dev)) { + printk (" unable to get IRQ %d.\n", dev->irq); + retval = -EAGAIN; + goto out; + } + + if (dev->mem_start == 0) { + unsigned char mem_enabled = inb(ioaddr + ES_CFG2) & 0xc0; + unsigned char mem_bits = inb(ioaddr + ES_CFG3) & 0x07; + + if (mem_enabled != 0x80) { + printk(" shared mem disabled - giving up\n"); + retval = -ENXIO; + goto out1; + } + dev->mem_start = 0xC0000 + mem_bits*0x4000; + printk(" using "); + } else { + printk(" assigning "); + } + + ei_status.mem = ioremap(dev->mem_start, (ES_STOP_PG - ES_START_PG)*256); + if (!ei_status.mem) { + printk("ioremap failed - giving up\n"); + retval = -ENXIO; + goto out1; + } + + dev->mem_end = dev->mem_start + (ES_STOP_PG - ES_START_PG)*256; + + printk("mem %#lx-%#lx\n", dev->mem_start, dev->mem_end-1); + +#if ES_DEBUG & ES_D_PROBE + if (inb(ioaddr + ES_CFG5)) + printk("es3210: Warning - DMA channel enabled, but not used here.\n"); +#endif + /* Note, point at the 8390, and not the card... */ + dev->base_addr = ioaddr + ES_NIC_OFFSET; + + ei_status.name = "ES3210"; + ei_status.tx_start_page = ES_START_PG; + ei_status.rx_start_page = ES_START_PG + TX_PAGES; + ei_status.stop_page = ES_STOP_PG; + ei_status.word16 = 1; + + if (ei_debug > 0) + printk(version); + + ei_status.reset_8390 = &es_reset_8390; + ei_status.block_input = &es_block_input; + ei_status.block_output = &es_block_output; + ei_status.get_8390_hdr = &es_get_8390_hdr; + + dev->netdev_ops = &ei_netdev_ops; + NS8390_init(dev, 0); + + retval = register_netdev(dev); + if (retval) + goto out1; + return 0; +out1: + free_irq(dev->irq, dev); +out: + release_region(ioaddr + ES_SA_PROM, ES_IO_EXTENT); + return retval; +} + +/* + * Reset as per the packet driver method. Judging by the EISA cfg + * file, this just toggles the "Board Enable" bits (bit 2 and 0). + */ + +static void es_reset_8390(struct net_device *dev) +{ + unsigned short ioaddr = dev->base_addr; + unsigned long end; + + outb(0x04, ioaddr + ES_RESET_PORT); + if (ei_debug > 1) printk("%s: resetting the ES3210...", dev->name); + + end = jiffies + 2*HZ/100; + while ((signed)(end - jiffies) > 0) continue; + + ei_status.txing = 0; + outb(0x01, ioaddr + ES_RESET_PORT); + if (ei_debug > 1) printk("reset done\n"); +} + +/* + * Note: In the following three functions is the implicit assumption + * that the associated memcpy will only use "rep; movsl" as long as + * we keep the counts as some multiple of doublewords. This is a + * requirement of the hardware, and also prevents us from using + * eth_io_copy_and_sum() since we can't guarantee it will limit + * itself to doubleword access. + */ + +/* + * Grab the 8390 specific header. Similar to the block_input routine, but + * we don't need to be concerned with ring wrap as the header will be at + * the start of a page, so we optimize accordingly. (A single doubleword.) + */ + +static void +es_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page) +{ + void __iomem *hdr_start = ei_status.mem + ((ring_page - ES_START_PG)<<8); + memcpy_fromio(hdr, hdr_start, sizeof(struct e8390_pkt_hdr)); + hdr->count = (hdr->count + 3) & ~3; /* Round up allocation. */ +} + +/* + * Block input and output are easy on shared memory ethercards, the only + * complication is when the ring buffer wraps. The count will already + * be rounded up to a doubleword value via es_get_8390_hdr() above. + */ + +static void es_block_input(struct net_device *dev, int count, struct sk_buff *skb, + int ring_offset) +{ + void __iomem *xfer_start = ei_status.mem + ring_offset - ES_START_PG*256; + + if (ring_offset + count > ES_STOP_PG*256) { + /* Packet wraps over end of ring buffer. */ + int semi_count = ES_STOP_PG*256 - ring_offset; + memcpy_fromio(skb->data, xfer_start, semi_count); + count -= semi_count; + memcpy_fromio(skb->data + semi_count, ei_status.mem, count); + } else { + /* Packet is in one chunk. */ + memcpy_fromio(skb->data, xfer_start, count); + } +} + +static void es_block_output(struct net_device *dev, int count, + const unsigned char *buf, int start_page) +{ + void __iomem *shmem = ei_status.mem + ((start_page - ES_START_PG)<<8); + + count = (count + 3) & ~3; /* Round up to doubleword */ + memcpy_toio(shmem, buf, count); +} + +#ifdef MODULE +#define MAX_ES_CARDS 4 /* Max number of ES3210 cards per module */ +#define NAMELEN 8 /* # of chars for storing dev->name */ +static struct net_device *dev_es3210[MAX_ES_CARDS]; +static int io[MAX_ES_CARDS]; +static int irq[MAX_ES_CARDS]; +static int mem[MAX_ES_CARDS]; + +module_param_array(io, int, NULL, 0); +module_param_array(irq, int, NULL, 0); +module_param_array(mem, int, NULL, 0); +MODULE_PARM_DESC(io, "I/O base address(es)"); +MODULE_PARM_DESC(irq, "IRQ number(s)"); +MODULE_PARM_DESC(mem, "memory base address(es)"); +MODULE_DESCRIPTION("Racal-Interlan ES3210 EISA ethernet driver"); +MODULE_LICENSE("GPL"); + +int __init init_module(void) +{ + struct net_device *dev; + int this_dev, found = 0; + + for (this_dev = 0; this_dev < MAX_ES_CARDS; this_dev++) { + if (io[this_dev] == 0 && this_dev != 0) + break; + dev = alloc_ei_netdev(); + if (!dev) + break; + dev->irq = irq[this_dev]; + dev->base_addr = io[this_dev]; + dev->mem_start = mem[this_dev]; + if (do_es_probe(dev) == 0) { + dev_es3210[found++] = dev; + continue; + } + free_netdev(dev); + printk(KERN_WARNING "es3210.c: No es3210 card found (i/o = 0x%x).\n", io[this_dev]); + break; + } + if (found) + return 0; + return -ENXIO; +} + +static void cleanup_card(struct net_device *dev) +{ + free_irq(dev->irq, dev); + release_region(dev->base_addr, ES_IO_EXTENT); + iounmap(ei_status.mem); +} + +void __exit +cleanup_module(void) +{ + int this_dev; + + for (this_dev = 0; this_dev < MAX_ES_CARDS; this_dev++) { + struct net_device *dev = dev_es3210[this_dev]; + if (dev) { + unregister_netdev(dev); + cleanup_card(dev); + free_netdev(dev); + } + } +} +#endif /* MODULE */ + diff --git a/drivers/net/ethernet/8390/etherh.c b/drivers/net/ethernet/8390/etherh.c new file mode 100644 index 000000000000..cf851faef311 --- /dev/null +++ b/drivers/net/ethernet/8390/etherh.c @@ -0,0 +1,866 @@ +/* + * linux/drivers/acorn/net/etherh.c + * + * Copyright (C) 2000-2002 Russell King + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * NS8390 I-cubed EtherH and ANT EtherM specific driver + * Thanks to I-Cubed for information on their cards. + * EtherM conversion (C) 1999 Chris Kemp and Tim Watterton + * EtherM integration (C) 2000 Aleph One Ltd (Tak-Shing Chan) + * EtherM integration re-engineered by Russell King. + * + * Changelog: + * 08-12-1996 RMK 1.00 Created + * RMK 1.03 Added support for EtherLan500 cards + * 23-11-1997 RMK 1.04 Added media autodetection + * 16-04-1998 RMK 1.05 Improved media autodetection + * 10-02-2000 RMK 1.06 Updated for 2.3.43 + * 13-05-2000 RMK 1.07 Updated for 2.3.99-pre8 + * 12-10-1999 CK/TEW EtherM driver first release + * 21-12-2000 TTC EtherH/EtherM integration + * 25-12-2000 RMK 1.08 Clean integration of EtherM into this driver. + * 03-01-2002 RMK 1.09 Always enable IRQs if we're in the nic slot. + */ + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/fcntl.h> +#include <linux/interrupt.h> +#include <linux/ioport.h> +#include <linux/in.h> +#include <linux/string.h> +#include <linux/errno.h> +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/ethtool.h> +#include <linux/skbuff.h> +#include <linux/delay.h> +#include <linux/device.h> +#include <linux/init.h> +#include <linux/bitops.h> +#include <linux/jiffies.h> + +#include <asm/system.h> +#include <asm/ecard.h> +#include <asm/io.h> + +#define EI_SHIFT(x) (ei_local->reg_offset[x]) + +#define ei_inb(_p) readb((void __iomem *)_p) +#define ei_outb(_v,_p) writeb(_v,(void __iomem *)_p) +#define ei_inb_p(_p) readb((void __iomem *)_p) +#define ei_outb_p(_v,_p) writeb(_v,(void __iomem *)_p) + +#define NET_DEBUG 0 +#define DEBUG_INIT 2 + +#define DRV_NAME "etherh" +#define DRV_VERSION "1.11" + +static char version[] __initdata = + "EtherH/EtherM Driver (c) 2002-2004 Russell King " DRV_VERSION "\n"; + +#include "lib8390.c" + +static unsigned int net_debug = NET_DEBUG; + +struct etherh_priv { + void __iomem *ioc_fast; + void __iomem *memc; + void __iomem *dma_base; + unsigned int id; + void __iomem *ctrl_port; + unsigned char ctrl; + u32 supported; +}; + +struct etherh_data { + unsigned long ns8390_offset; + unsigned long dataport_offset; + unsigned long ctrlport_offset; + int ctrl_ioc; + const char name[16]; + u32 supported; + unsigned char tx_start_page; + unsigned char stop_page; +}; + +MODULE_AUTHOR("Russell King"); +MODULE_DESCRIPTION("EtherH/EtherM driver"); +MODULE_LICENSE("GPL"); + +#define ETHERH500_DATAPORT 0x800 /* MEMC */ +#define ETHERH500_NS8390 0x000 /* MEMC */ +#define ETHERH500_CTRLPORT 0x800 /* IOC */ + +#define ETHERH600_DATAPORT 0x040 /* MEMC */ +#define ETHERH600_NS8390 0x800 /* MEMC */ +#define ETHERH600_CTRLPORT 0x200 /* MEMC */ + +#define ETHERH_CP_IE 1 +#define ETHERH_CP_IF 2 +#define ETHERH_CP_HEARTBEAT 2 + +#define ETHERH_TX_START_PAGE 1 +#define ETHERH_STOP_PAGE 127 + +/* + * These came from CK/TEW + */ +#define ETHERM_DATAPORT 0x200 /* MEMC */ +#define ETHERM_NS8390 0x800 /* MEMC */ +#define ETHERM_CTRLPORT 0x23c /* MEMC */ + +#define ETHERM_TX_START_PAGE 64 +#define ETHERM_STOP_PAGE 127 + +/* ------------------------------------------------------------------------ */ + +#define etherh_priv(dev) \ + ((struct etherh_priv *)(((char *)netdev_priv(dev)) + sizeof(struct ei_device))) + +static inline void etherh_set_ctrl(struct etherh_priv *eh, unsigned char mask) +{ + unsigned char ctrl = eh->ctrl | mask; + eh->ctrl = ctrl; + writeb(ctrl, eh->ctrl_port); +} + +static inline void etherh_clr_ctrl(struct etherh_priv *eh, unsigned char mask) +{ + unsigned char ctrl = eh->ctrl & ~mask; + eh->ctrl = ctrl; + writeb(ctrl, eh->ctrl_port); +} + +static inline unsigned int etherh_get_stat(struct etherh_priv *eh) +{ + return readb(eh->ctrl_port); +} + + + + +static void etherh_irq_enable(ecard_t *ec, int irqnr) +{ + struct etherh_priv *eh = ec->irq_data; + + etherh_set_ctrl(eh, ETHERH_CP_IE); +} + +static void etherh_irq_disable(ecard_t *ec, int irqnr) +{ + struct etherh_priv *eh = ec->irq_data; + + etherh_clr_ctrl(eh, ETHERH_CP_IE); +} + +static expansioncard_ops_t etherh_ops = { + .irqenable = etherh_irq_enable, + .irqdisable = etherh_irq_disable, +}; + + + + +static void +etherh_setif(struct net_device *dev) +{ + struct ei_device *ei_local = netdev_priv(dev); + unsigned long flags; + void __iomem *addr; + + local_irq_save(flags); + + /* set the interface type */ + switch (etherh_priv(dev)->id) { + case PROD_I3_ETHERLAN600: + case PROD_I3_ETHERLAN600A: + addr = (void __iomem *)dev->base_addr + EN0_RCNTHI; + + switch (dev->if_port) { + case IF_PORT_10BASE2: + writeb((readb(addr) & 0xf8) | 1, addr); + break; + case IF_PORT_10BASET: + writeb((readb(addr) & 0xf8), addr); + break; + } + break; + + case PROD_I3_ETHERLAN500: + switch (dev->if_port) { + case IF_PORT_10BASE2: + etherh_clr_ctrl(etherh_priv(dev), ETHERH_CP_IF); + break; + + case IF_PORT_10BASET: + etherh_set_ctrl(etherh_priv(dev), ETHERH_CP_IF); + break; + } + break; + + default: + break; + } + + local_irq_restore(flags); +} + +static int +etherh_getifstat(struct net_device *dev) +{ + struct ei_device *ei_local = netdev_priv(dev); + void __iomem *addr; + int stat = 0; + + switch (etherh_priv(dev)->id) { + case PROD_I3_ETHERLAN600: + case PROD_I3_ETHERLAN600A: + addr = (void __iomem *)dev->base_addr + EN0_RCNTHI; + switch (dev->if_port) { + case IF_PORT_10BASE2: + stat = 1; + break; + case IF_PORT_10BASET: + stat = readb(addr) & 4; + break; + } + break; + + case PROD_I3_ETHERLAN500: + switch (dev->if_port) { + case IF_PORT_10BASE2: + stat = 1; + break; + case IF_PORT_10BASET: + stat = etherh_get_stat(etherh_priv(dev)) & ETHERH_CP_HEARTBEAT; + break; + } + break; + + default: + stat = 0; + break; + } + + return stat != 0; +} + +/* + * Configure the interface. Note that we ignore the other + * parts of ifmap, since its mostly meaningless for this driver. + */ +static int etherh_set_config(struct net_device *dev, struct ifmap *map) +{ + switch (map->port) { + case IF_PORT_10BASE2: + case IF_PORT_10BASET: + /* + * If the user explicitly sets the interface + * media type, turn off automedia detection. + */ + dev->flags &= ~IFF_AUTOMEDIA; + dev->if_port = map->port; + break; + + default: + return -EINVAL; + } + + etherh_setif(dev); + + return 0; +} + +/* + * Reset the 8390 (hard reset). Note that we can't actually do this. + */ +static void +etherh_reset(struct net_device *dev) +{ + struct ei_device *ei_local = netdev_priv(dev); + void __iomem *addr = (void __iomem *)dev->base_addr; + + writeb(E8390_NODMA+E8390_PAGE0+E8390_STOP, addr); + + /* + * See if we need to change the interface type. + * Note that we use 'interface_num' as a flag + * to indicate that we need to change the media. + */ + if (dev->flags & IFF_AUTOMEDIA && ei_local->interface_num) { + ei_local->interface_num = 0; + + if (dev->if_port == IF_PORT_10BASET) + dev->if_port = IF_PORT_10BASE2; + else + dev->if_port = IF_PORT_10BASET; + + etherh_setif(dev); + } +} + +/* + * Write a block of data out to the 8390 + */ +static void +etherh_block_output (struct net_device *dev, int count, const unsigned char *buf, int start_page) +{ + struct ei_device *ei_local = netdev_priv(dev); + unsigned long dma_start; + void __iomem *dma_base, *addr; + + if (ei_local->dmaing) { + printk(KERN_ERR "%s: DMAing conflict in etherh_block_input: " + " DMAstat %d irqlock %d\n", dev->name, + ei_local->dmaing, ei_local->irqlock); + return; + } + + /* + * Make sure we have a round number of bytes if we're in word mode. + */ + if (count & 1 && ei_local->word16) + count++; + + ei_local->dmaing = 1; + + addr = (void __iomem *)dev->base_addr; + dma_base = etherh_priv(dev)->dma_base; + + count = (count + 1) & ~1; + writeb (E8390_NODMA | E8390_PAGE0 | E8390_START, addr + E8390_CMD); + + writeb (0x42, addr + EN0_RCNTLO); + writeb (0x00, addr + EN0_RCNTHI); + writeb (0x42, addr + EN0_RSARLO); + writeb (0x00, addr + EN0_RSARHI); + writeb (E8390_RREAD | E8390_START, addr + E8390_CMD); + + udelay (1); + + writeb (ENISR_RDC, addr + EN0_ISR); + writeb (count, addr + EN0_RCNTLO); + writeb (count >> 8, addr + EN0_RCNTHI); + writeb (0, addr + EN0_RSARLO); + writeb (start_page, addr + EN0_RSARHI); + writeb (E8390_RWRITE | E8390_START, addr + E8390_CMD); + + if (ei_local->word16) + writesw (dma_base, buf, count >> 1); + else + writesb (dma_base, buf, count); + + dma_start = jiffies; + + while ((readb (addr + EN0_ISR) & ENISR_RDC) == 0) + if (time_after(jiffies, dma_start + 2*HZ/100)) { /* 20ms */ + printk(KERN_ERR "%s: timeout waiting for TX RDC\n", + dev->name); + etherh_reset (dev); + __NS8390_init (dev, 1); + break; + } + + writeb (ENISR_RDC, addr + EN0_ISR); + ei_local->dmaing = 0; +} + +/* + * Read a block of data from the 8390 + */ +static void +etherh_block_input (struct net_device *dev, int count, struct sk_buff *skb, int ring_offset) +{ + struct ei_device *ei_local = netdev_priv(dev); + unsigned char *buf; + void __iomem *dma_base, *addr; + + if (ei_local->dmaing) { + printk(KERN_ERR "%s: DMAing conflict in etherh_block_input: " + " DMAstat %d irqlock %d\n", dev->name, + ei_local->dmaing, ei_local->irqlock); + return; + } + + ei_local->dmaing = 1; + + addr = (void __iomem *)dev->base_addr; + dma_base = etherh_priv(dev)->dma_base; + + buf = skb->data; + writeb (E8390_NODMA | E8390_PAGE0 | E8390_START, addr + E8390_CMD); + writeb (count, addr + EN0_RCNTLO); + writeb (count >> 8, addr + EN0_RCNTHI); + writeb (ring_offset, addr + EN0_RSARLO); + writeb (ring_offset >> 8, addr + EN0_RSARHI); + writeb (E8390_RREAD | E8390_START, addr + E8390_CMD); + + if (ei_local->word16) { + readsw (dma_base, buf, count >> 1); + if (count & 1) + buf[count - 1] = readb (dma_base); + } else + readsb (dma_base, buf, count); + + writeb (ENISR_RDC, addr + EN0_ISR); + ei_local->dmaing = 0; +} + +/* + * Read a header from the 8390 + */ +static void +etherh_get_header (struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page) +{ + struct ei_device *ei_local = netdev_priv(dev); + void __iomem *dma_base, *addr; + + if (ei_local->dmaing) { + printk(KERN_ERR "%s: DMAing conflict in etherh_get_header: " + " DMAstat %d irqlock %d\n", dev->name, + ei_local->dmaing, ei_local->irqlock); + return; + } + + ei_local->dmaing = 1; + + addr = (void __iomem *)dev->base_addr; + dma_base = etherh_priv(dev)->dma_base; + + writeb (E8390_NODMA | E8390_PAGE0 | E8390_START, addr + E8390_CMD); + writeb (sizeof (*hdr), addr + EN0_RCNTLO); + writeb (0, addr + EN0_RCNTHI); + writeb (0, addr + EN0_RSARLO); + writeb (ring_page, addr + EN0_RSARHI); + writeb (E8390_RREAD | E8390_START, addr + E8390_CMD); + + if (ei_local->word16) + readsw (dma_base, hdr, sizeof (*hdr) >> 1); + else + readsb (dma_base, hdr, sizeof (*hdr)); + + writeb (ENISR_RDC, addr + EN0_ISR); + ei_local->dmaing = 0; +} + +/* + * Open/initialize the board. This is called (in the current kernel) + * sometime after booting when the 'ifconfig' program is run. + * + * This routine should set everything up anew at each open, even + * registers that "should" only need to be set once at boot, so that + * there is non-reboot way to recover if something goes wrong. + */ +static int +etherh_open(struct net_device *dev) +{ + struct ei_device *ei_local = netdev_priv(dev); + + if (!is_valid_ether_addr(dev->dev_addr)) { + printk(KERN_WARNING "%s: invalid ethernet MAC address\n", + dev->name); + return -EINVAL; + } + + if (request_irq(dev->irq, __ei_interrupt, 0, dev->name, dev)) + return -EAGAIN; + + /* + * Make sure that we aren't going to change the + * media type on the next reset - we are about to + * do automedia manually now. + */ + ei_local->interface_num = 0; + + /* + * If we are doing automedia detection, do it now. + * This is more reliable than the 8390's detection. + */ + if (dev->flags & IFF_AUTOMEDIA) { + dev->if_port = IF_PORT_10BASET; + etherh_setif(dev); + mdelay(1); + if (!etherh_getifstat(dev)) { + dev->if_port = IF_PORT_10BASE2; + etherh_setif(dev); + } + } else + etherh_setif(dev); + + etherh_reset(dev); + __ei_open(dev); + + return 0; +} + +/* + * The inverse routine to etherh_open(). + */ +static int +etherh_close(struct net_device *dev) +{ + __ei_close (dev); + free_irq (dev->irq, dev); + return 0; +} + +/* + * Initialisation + */ + +static void __init etherh_banner(void) +{ + static int version_printed; + + if (net_debug && version_printed++ == 0) + printk(KERN_INFO "%s", version); +} + +/* + * Read the ethernet address string from the on board rom. + * This is an ascii string... + */ +static int __devinit etherh_addr(char *addr, struct expansion_card *ec) +{ + struct in_chunk_dir cd; + char *s; + + if (!ecard_readchunk(&cd, ec, 0xf5, 0)) { + printk(KERN_ERR "%s: unable to read podule description string\n", + dev_name(&ec->dev)); + goto no_addr; + } + + s = strchr(cd.d.string, '('); + if (s) { + int i; + + for (i = 0; i < 6; i++) { + addr[i] = simple_strtoul(s + 1, &s, 0x10); + if (*s != (i == 5? ')' : ':')) + break; + } + + if (i == 6) + return 0; + } + + printk(KERN_ERR "%s: unable to parse MAC address: %s\n", + dev_name(&ec->dev), cd.d.string); + + no_addr: + return -ENODEV; +} + +/* + * Create an ethernet address from the system serial number. + */ +static int __init etherm_addr(char *addr) +{ + unsigned int serial; + + if (system_serial_low == 0 && system_serial_high == 0) + return -ENODEV; + + serial = system_serial_low | system_serial_high; + + addr[0] = 0; + addr[1] = 0; + addr[2] = 0xa4; + addr[3] = 0x10 + (serial >> 24); + addr[4] = serial >> 16; + addr[5] = serial >> 8; + return 0; +} + +static void etherh_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) +{ + strlcpy(info->driver, DRV_NAME, sizeof(info->driver)); + strlcpy(info->version, DRV_VERSION, sizeof(info->version)); + strlcpy(info->bus_info, dev_name(dev->dev.parent), + sizeof(info->bus_info)); +} + +static int etherh_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) +{ + cmd->supported = etherh_priv(dev)->supported; + ethtool_cmd_speed_set(cmd, SPEED_10); + cmd->duplex = DUPLEX_HALF; + cmd->port = dev->if_port == IF_PORT_10BASET ? PORT_TP : PORT_BNC; + cmd->autoneg = (dev->flags & IFF_AUTOMEDIA ? + AUTONEG_ENABLE : AUTONEG_DISABLE); + return 0; +} + +static int etherh_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) +{ + switch (cmd->autoneg) { + case AUTONEG_ENABLE: + dev->flags |= IFF_AUTOMEDIA; + break; + + case AUTONEG_DISABLE: + switch (cmd->port) { + case PORT_TP: + dev->if_port = IF_PORT_10BASET; + break; + + case PORT_BNC: + dev->if_port = IF_PORT_10BASE2; + break; + + default: + return -EINVAL; + } + dev->flags &= ~IFF_AUTOMEDIA; + break; + + default: + return -EINVAL; + } + + etherh_setif(dev); + + return 0; +} + +static const struct ethtool_ops etherh_ethtool_ops = { + .get_settings = etherh_get_settings, + .set_settings = etherh_set_settings, + .get_drvinfo = etherh_get_drvinfo, +}; + +static const struct net_device_ops etherh_netdev_ops = { + .ndo_open = etherh_open, + .ndo_stop = etherh_close, + .ndo_set_config = etherh_set_config, + .ndo_start_xmit = __ei_start_xmit, + .ndo_tx_timeout = __ei_tx_timeout, + .ndo_get_stats = __ei_get_stats, + .ndo_set_multicast_list = __ei_set_multicast_list, + .ndo_validate_addr = eth_validate_addr, + .ndo_set_mac_address = eth_mac_addr, + .ndo_change_mtu = eth_change_mtu, +#ifdef CONFIG_NET_POLL_CONTROLLER + .ndo_poll_controller = __ei_poll, +#endif +}; + +static u32 etherh_regoffsets[16]; +static u32 etherm_regoffsets[16]; + +static int __devinit +etherh_probe(struct expansion_card *ec, const struct ecard_id *id) +{ + const struct etherh_data *data = id->data; + struct ei_device *ei_local; + struct net_device *dev; + struct etherh_priv *eh; + int ret; + + etherh_banner(); + + ret = ecard_request_resources(ec); + if (ret) + goto out; + + dev = ____alloc_ei_netdev(sizeof(struct etherh_priv)); + if (!dev) { + ret = -ENOMEM; + goto release; + } + + SET_NETDEV_DEV(dev, &ec->dev); + + dev->netdev_ops = ðerh_netdev_ops; + dev->irq = ec->irq; + dev->ethtool_ops = ðerh_ethtool_ops; + + if (data->supported & SUPPORTED_Autoneg) + dev->flags |= IFF_AUTOMEDIA; + if (data->supported & SUPPORTED_TP) { + dev->flags |= IFF_PORTSEL; + dev->if_port = IF_PORT_10BASET; + } else if (data->supported & SUPPORTED_BNC) { + dev->flags |= IFF_PORTSEL; + dev->if_port = IF_PORT_10BASE2; + } else + dev->if_port = IF_PORT_UNKNOWN; + + eh = etherh_priv(dev); + eh->supported = data->supported; + eh->ctrl = 0; + eh->id = ec->cid.product; + eh->memc = ecardm_iomap(ec, ECARD_RES_MEMC, 0, PAGE_SIZE); + if (!eh->memc) { + ret = -ENOMEM; + goto free; + } + + eh->ctrl_port = eh->memc; + if (data->ctrl_ioc) { + eh->ioc_fast = ecardm_iomap(ec, ECARD_RES_IOCFAST, 0, PAGE_SIZE); + if (!eh->ioc_fast) { + ret = -ENOMEM; + goto free; + } + eh->ctrl_port = eh->ioc_fast; + } + + dev->base_addr = (unsigned long)eh->memc + data->ns8390_offset; + eh->dma_base = eh->memc + data->dataport_offset; + eh->ctrl_port += data->ctrlport_offset; + + /* + * IRQ and control port handling - only for non-NIC slot cards. + */ + if (ec->slot_no != 8) { + ecard_setirq(ec, ðerh_ops, eh); + } else { + /* + * If we're in the NIC slot, make sure the IRQ is enabled + */ + etherh_set_ctrl(eh, ETHERH_CP_IE); + } + + ei_local = netdev_priv(dev); + spin_lock_init(&ei_local->page_lock); + + if (ec->cid.product == PROD_ANT_ETHERM) { + etherm_addr(dev->dev_addr); + ei_local->reg_offset = etherm_regoffsets; + } else { + etherh_addr(dev->dev_addr, ec); + ei_local->reg_offset = etherh_regoffsets; + } + + ei_local->name = dev->name; + ei_local->word16 = 1; + ei_local->tx_start_page = data->tx_start_page; + ei_local->rx_start_page = ei_local->tx_start_page + TX_PAGES; + ei_local->stop_page = data->stop_page; + ei_local->reset_8390 = etherh_reset; + ei_local->block_input = etherh_block_input; + ei_local->block_output = etherh_block_output; + ei_local->get_8390_hdr = etherh_get_header; + ei_local->interface_num = 0; + + etherh_reset(dev); + __NS8390_init(dev, 0); + + ret = register_netdev(dev); + if (ret) + goto free; + + printk(KERN_INFO "%s: %s in slot %d, %pM\n", + dev->name, data->name, ec->slot_no, dev->dev_addr); + + ecard_set_drvdata(ec, dev); + + return 0; + + free: + free_netdev(dev); + release: + ecard_release_resources(ec); + out: + return ret; +} + +static void __devexit etherh_remove(struct expansion_card *ec) +{ + struct net_device *dev = ecard_get_drvdata(ec); + + ecard_set_drvdata(ec, NULL); + + unregister_netdev(dev); + + free_netdev(dev); + + ecard_release_resources(ec); +} + +static struct etherh_data etherm_data = { + .ns8390_offset = ETHERM_NS8390, + .dataport_offset = ETHERM_NS8390 + ETHERM_DATAPORT, + .ctrlport_offset = ETHERM_NS8390 + ETHERM_CTRLPORT, + .name = "ANT EtherM", + .supported = SUPPORTED_10baseT_Half, + .tx_start_page = ETHERM_TX_START_PAGE, + .stop_page = ETHERM_STOP_PAGE, +}; + +static struct etherh_data etherlan500_data = { + .ns8390_offset = ETHERH500_NS8390, + .dataport_offset = ETHERH500_NS8390 + ETHERH500_DATAPORT, + .ctrlport_offset = ETHERH500_CTRLPORT, + .ctrl_ioc = 1, + .name = "i3 EtherH 500", + .supported = SUPPORTED_10baseT_Half, + .tx_start_page = ETHERH_TX_START_PAGE, + .stop_page = ETHERH_STOP_PAGE, +}; + +static struct etherh_data etherlan600_data = { + .ns8390_offset = ETHERH600_NS8390, + .dataport_offset = ETHERH600_NS8390 + ETHERH600_DATAPORT, + .ctrlport_offset = ETHERH600_NS8390 + ETHERH600_CTRLPORT, + .name = "i3 EtherH 600", + .supported = SUPPORTED_10baseT_Half | SUPPORTED_TP | SUPPORTED_BNC | SUPPORTED_Autoneg, + .tx_start_page = ETHERH_TX_START_PAGE, + .stop_page = ETHERH_STOP_PAGE, +}; + +static struct etherh_data etherlan600a_data = { + .ns8390_offset = ETHERH600_NS8390, + .dataport_offset = ETHERH600_NS8390 + ETHERH600_DATAPORT, + .ctrlport_offset = ETHERH600_NS8390 + ETHERH600_CTRLPORT, + .name = "i3 EtherH 600A", + .supported = SUPPORTED_10baseT_Half | SUPPORTED_TP | SUPPORTED_BNC | SUPPORTED_Autoneg, + .tx_start_page = ETHERH_TX_START_PAGE, + .stop_page = ETHERH_STOP_PAGE, +}; + +static const struct ecard_id etherh_ids[] = { + { MANU_ANT, PROD_ANT_ETHERM, ðerm_data }, + { MANU_I3, PROD_I3_ETHERLAN500, ðerlan500_data }, + { MANU_I3, PROD_I3_ETHERLAN600, ðerlan600_data }, + { MANU_I3, PROD_I3_ETHERLAN600A, ðerlan600a_data }, + { 0xffff, 0xffff } +}; + +static struct ecard_driver etherh_driver = { + .probe = etherh_probe, + .remove = __devexit_p(etherh_remove), + .id_table = etherh_ids, + .drv = { + .name = DRV_NAME, + }, +}; + +static int __init etherh_init(void) +{ + int i; + + for (i = 0; i < 16; i++) { + etherh_regoffsets[i] = i << 2; + etherm_regoffsets[i] = i << 5; + } + + return ecard_register_driver(ðerh_driver); +} + +static void __exit etherh_exit(void) +{ + ecard_remove_driver(ðerh_driver); +} + +module_init(etherh_init); +module_exit(etherh_exit); diff --git a/drivers/net/ethernet/8390/hp-plus.c b/drivers/net/ethernet/8390/hp-plus.c new file mode 100644 index 000000000000..29917363ebfb --- /dev/null +++ b/drivers/net/ethernet/8390/hp-plus.c @@ -0,0 +1,506 @@ +/* hp-plus.c: A HP PCLAN/plus ethernet driver for linux. */ +/* + Written 1994 by Donald Becker. + + This driver is for the Hewlett Packard PC LAN (27***) plus ethercards. + These cards are sold under several model numbers, usually 2724*. + + This software may be used and distributed according to the terms + of the GNU General Public License, incorporated herein by reference. + + The author may be reached as becker@scyld.com, or C/O + Scyld Computing Corporation + 410 Severn Ave., Suite 210 + Annapolis MD 21403 + + As is often the case, a great deal of credit is owed to Russ Nelson. + The Crynwr packet driver was my primary source of HP-specific + programming information. +*/ + +static const char version[] = +"hp-plus.c:v1.10 9/24/94 Donald Becker (becker@cesdis.gsfc.nasa.gov)\n"; + +#include <linux/module.h> + +#include <linux/string.h> /* Important -- this inlines word moves. */ +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/ioport.h> +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/delay.h> + +#include <asm/system.h> +#include <asm/io.h> + +#include "8390.h" + +#define DRV_NAME "hp-plus" + +/* A zero-terminated list of I/O addresses to be probed. */ +static unsigned int hpplus_portlist[] __initdata = +{0x200, 0x240, 0x280, 0x2C0, 0x300, 0x320, 0x340, 0}; + +/* + The HP EtherTwist chip implementation is a fairly routine DP8390 + implementation. It allows both shared memory and programmed-I/O buffer + access, using a custom interface for both. The programmed-I/O mode is + entirely implemented in the HP EtherTwist chip, bypassing the problem + ridden built-in 8390 facilities used on NE2000 designs. The shared + memory mode is likewise special, with an offset register used to make + packets appear at the shared memory base. Both modes use a base and bounds + page register to hide the Rx ring buffer wrap -- a packet that spans the + end of physical buffer memory appears continuous to the driver. (c.f. the + 3c503 and Cabletron E2100) + + A special note: the internal buffer of the board is only 8 bits wide. + This lays several nasty traps for the unaware: + - the 8390 must be programmed for byte-wide operations + - all I/O and memory operations must work on whole words (the access + latches are serially preloaded and have no byte-swapping ability). + + This board is laid out in I/O space much like the earlier HP boards: + the first 16 locations are for the board registers, and the second 16 are + for the 8390. The board is easy to identify, with both a dedicated 16 bit + ID register and a constant 0x530* value in the upper bits of the paging + register. +*/ + +#define HP_ID 0x00 /* ID register, always 0x4850. */ +#define HP_PAGING 0x02 /* Registers visible @ 8-f, see PageName. */ +#define HPP_OPTION 0x04 /* Bitmapped options, see HP_Option. */ +#define HPP_OUT_ADDR 0x08 /* I/O output location in Perf_Page. */ +#define HPP_IN_ADDR 0x0A /* I/O input location in Perf_Page. */ +#define HP_DATAPORT 0x0c /* I/O data transfer in Perf_Page. */ +#define NIC_OFFSET 0x10 /* Offset to the 8390 registers. */ +#define HP_IO_EXTENT 32 + +#define HP_START_PG 0x00 /* First page of TX buffer */ +#define HP_STOP_PG 0x80 /* Last page +1 of RX ring */ + +/* The register set selected in HP_PAGING. */ +enum PageName { + Perf_Page = 0, /* Normal operation. */ + MAC_Page = 1, /* The ethernet address (+checksum). */ + HW_Page = 2, /* EEPROM-loaded hardware parameters. */ + LAN_Page = 4, /* Transceiver selection, testing, etc. */ + ID_Page = 6 }; + +/* The bit definitions for the HPP_OPTION register. */ +enum HP_Option { + NICReset = 1, ChipReset = 2, /* Active low, really UNreset. */ + EnableIRQ = 4, FakeIntr = 8, BootROMEnb = 0x10, IOEnb = 0x20, + MemEnable = 0x40, ZeroWait = 0x80, MemDisable = 0x1000, }; + +static int hpp_probe1(struct net_device *dev, int ioaddr); + +static void hpp_reset_8390(struct net_device *dev); +static int hpp_open(struct net_device *dev); +static int hpp_close(struct net_device *dev); +static void hpp_mem_block_input(struct net_device *dev, int count, + struct sk_buff *skb, int ring_offset); +static void hpp_mem_block_output(struct net_device *dev, int count, + const unsigned char *buf, int start_page); +static void hpp_mem_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, + int ring_page); +static void hpp_io_block_input(struct net_device *dev, int count, + struct sk_buff *skb, int ring_offset); +static void hpp_io_block_output(struct net_device *dev, int count, + const unsigned char *buf, int start_page); +static void hpp_io_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, + int ring_page); + + +/* Probe a list of addresses for an HP LAN+ adaptor. + This routine is almost boilerplate. */ + +static int __init do_hpp_probe(struct net_device *dev) +{ + int i; + int base_addr = dev->base_addr; + int irq = dev->irq; + + if (base_addr > 0x1ff) /* Check a single specified location. */ + return hpp_probe1(dev, base_addr); + else if (base_addr != 0) /* Don't probe at all. */ + return -ENXIO; + + for (i = 0; hpplus_portlist[i]; i++) { + if (hpp_probe1(dev, hpplus_portlist[i]) == 0) + return 0; + dev->irq = irq; + } + + return -ENODEV; +} + +#ifndef MODULE +struct net_device * __init hp_plus_probe(int unit) +{ + struct net_device *dev = alloc_eip_netdev(); + int err; + + if (!dev) + return ERR_PTR(-ENOMEM); + + sprintf(dev->name, "eth%d", unit); + netdev_boot_setup_check(dev); + + err = do_hpp_probe(dev); + if (err) + goto out; + return dev; +out: + free_netdev(dev); + return ERR_PTR(err); +} +#endif + +static const struct net_device_ops hpp_netdev_ops = { + .ndo_open = hpp_open, + .ndo_stop = hpp_close, + .ndo_start_xmit = eip_start_xmit, + .ndo_tx_timeout = eip_tx_timeout, + .ndo_get_stats = eip_get_stats, + .ndo_set_multicast_list = eip_set_multicast_list, + .ndo_validate_addr = eth_validate_addr, + .ndo_set_mac_address = eth_mac_addr, + .ndo_change_mtu = eth_change_mtu, +#ifdef CONFIG_NET_POLL_CONTROLLER + .ndo_poll_controller = eip_poll, +#endif +}; + + +/* Do the interesting part of the probe at a single address. */ +static int __init hpp_probe1(struct net_device *dev, int ioaddr) +{ + int i, retval; + unsigned char checksum = 0; + const char name[] = "HP-PC-LAN+"; + int mem_start; + static unsigned version_printed; + + if (!request_region(ioaddr, HP_IO_EXTENT, DRV_NAME)) + return -EBUSY; + + /* Check for the HP+ signature, 50 48 0x 53. */ + if (inw(ioaddr + HP_ID) != 0x4850 || + (inw(ioaddr + HP_PAGING) & 0xfff0) != 0x5300) { + retval = -ENODEV; + goto out; + } + + if (ei_debug && version_printed++ == 0) + printk(version); + + printk("%s: %s at %#3x, ", dev->name, name, ioaddr); + + /* Retrieve and checksum the station address. */ + outw(MAC_Page, ioaddr + HP_PAGING); + + for(i = 0; i < ETHER_ADDR_LEN; i++) { + unsigned char inval = inb(ioaddr + 8 + i); + dev->dev_addr[i] = inval; + checksum += inval; + } + checksum += inb(ioaddr + 14); + + printk("%pM", dev->dev_addr); + + if (checksum != 0xff) { + printk(" bad checksum %2.2x.\n", checksum); + retval = -ENODEV; + goto out; + } else { + /* Point at the Software Configuration Flags. */ + outw(ID_Page, ioaddr + HP_PAGING); + printk(" ID %4.4x", inw(ioaddr + 12)); + } + + /* Read the IRQ line. */ + outw(HW_Page, ioaddr + HP_PAGING); + { + int irq = inb(ioaddr + 13) & 0x0f; + int option = inw(ioaddr + HPP_OPTION); + + dev->irq = irq; + if (option & MemEnable) { + mem_start = inw(ioaddr + 9) << 8; + printk(", IRQ %d, memory address %#x.\n", irq, mem_start); + } else { + mem_start = 0; + printk(", IRQ %d, programmed-I/O mode.\n", irq); + } + } + + /* Set the wrap registers for string I/O reads. */ + outw((HP_START_PG + TX_PAGES/2) | ((HP_STOP_PG - 1) << 8), ioaddr + 14); + + /* Set the base address to point to the NIC, not the "real" base! */ + dev->base_addr = ioaddr + NIC_OFFSET; + + dev->netdev_ops = &hpp_netdev_ops; + + ei_status.name = name; + ei_status.word16 = 0; /* Agggghhhhh! Debug time: 2 days! */ + ei_status.tx_start_page = HP_START_PG; + ei_status.rx_start_page = HP_START_PG + TX_PAGES/2; + ei_status.stop_page = HP_STOP_PG; + + ei_status.reset_8390 = &hpp_reset_8390; + ei_status.block_input = &hpp_io_block_input; + ei_status.block_output = &hpp_io_block_output; + ei_status.get_8390_hdr = &hpp_io_get_8390_hdr; + + /* Check if the memory_enable flag is set in the option register. */ + if (mem_start) { + ei_status.block_input = &hpp_mem_block_input; + ei_status.block_output = &hpp_mem_block_output; + ei_status.get_8390_hdr = &hpp_mem_get_8390_hdr; + dev->mem_start = mem_start; + ei_status.mem = ioremap(mem_start, + (HP_STOP_PG - HP_START_PG)*256); + if (!ei_status.mem) { + retval = -ENOMEM; + goto out; + } + ei_status.rmem_start = dev->mem_start + TX_PAGES/2*256; + dev->mem_end = ei_status.rmem_end + = dev->mem_start + (HP_STOP_PG - HP_START_PG)*256; + } + + outw(Perf_Page, ioaddr + HP_PAGING); + NS8390p_init(dev, 0); + /* Leave the 8390 and HP chip reset. */ + outw(inw(ioaddr + HPP_OPTION) & ~EnableIRQ, ioaddr + HPP_OPTION); + + retval = register_netdev(dev); + if (retval) + goto out1; + return 0; +out1: + iounmap(ei_status.mem); +out: + release_region(ioaddr, HP_IO_EXTENT); + return retval; +} + +static int +hpp_open(struct net_device *dev) +{ + int ioaddr = dev->base_addr - NIC_OFFSET; + int option_reg; + int retval; + + if ((retval = request_irq(dev->irq, eip_interrupt, 0, dev->name, dev))) { + return retval; + } + + /* Reset the 8390 and HP chip. */ + option_reg = inw(ioaddr + HPP_OPTION); + outw(option_reg & ~(NICReset + ChipReset), ioaddr + HPP_OPTION); + udelay(5); + /* Unreset the board and enable interrupts. */ + outw(option_reg | (EnableIRQ + NICReset + ChipReset), ioaddr + HPP_OPTION); + + /* Set the wrap registers for programmed-I/O operation. */ + outw(HW_Page, ioaddr + HP_PAGING); + outw((HP_START_PG + TX_PAGES/2) | ((HP_STOP_PG - 1) << 8), ioaddr + 14); + + /* Select the operational page. */ + outw(Perf_Page, ioaddr + HP_PAGING); + + return eip_open(dev); +} + +static int +hpp_close(struct net_device *dev) +{ + int ioaddr = dev->base_addr - NIC_OFFSET; + int option_reg = inw(ioaddr + HPP_OPTION); + + free_irq(dev->irq, dev); + eip_close(dev); + outw((option_reg & ~EnableIRQ) | MemDisable | NICReset | ChipReset, + ioaddr + HPP_OPTION); + + return 0; +} + +static void +hpp_reset_8390(struct net_device *dev) +{ + int ioaddr = dev->base_addr - NIC_OFFSET; + int option_reg = inw(ioaddr + HPP_OPTION); + + if (ei_debug > 1) printk("resetting the 8390 time=%ld...", jiffies); + + outw(option_reg & ~(NICReset + ChipReset), ioaddr + HPP_OPTION); + /* Pause a few cycles for the hardware reset to take place. */ + udelay(5); + ei_status.txing = 0; + outw(option_reg | (EnableIRQ + NICReset + ChipReset), ioaddr + HPP_OPTION); + + udelay(5); + + + if ((inb_p(ioaddr+NIC_OFFSET+EN0_ISR) & ENISR_RESET) == 0) + printk("%s: hp_reset_8390() did not complete.\n", dev->name); + + if (ei_debug > 1) printk("8390 reset done (%ld).", jiffies); +} + +/* The programmed-I/O version of reading the 4 byte 8390 specific header. + Note that transfer with the EtherTwist+ must be on word boundaries. */ + +static void +hpp_io_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page) +{ + int ioaddr = dev->base_addr - NIC_OFFSET; + + outw((ring_page<<8), ioaddr + HPP_IN_ADDR); + insw(ioaddr + HP_DATAPORT, hdr, sizeof(struct e8390_pkt_hdr)>>1); +} + +/* Block input and output, similar to the Crynwr packet driver. */ + +static void +hpp_io_block_input(struct net_device *dev, int count, struct sk_buff *skb, int ring_offset) +{ + int ioaddr = dev->base_addr - NIC_OFFSET; + char *buf = skb->data; + + outw(ring_offset, ioaddr + HPP_IN_ADDR); + insw(ioaddr + HP_DATAPORT, buf, count>>1); + if (count & 0x01) + buf[count-1] = inw(ioaddr + HP_DATAPORT); +} + +/* The corresponding shared memory versions of the above 2 functions. */ + +static void +hpp_mem_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page) +{ + int ioaddr = dev->base_addr - NIC_OFFSET; + int option_reg = inw(ioaddr + HPP_OPTION); + + outw((ring_page<<8), ioaddr + HPP_IN_ADDR); + outw(option_reg & ~(MemDisable + BootROMEnb), ioaddr + HPP_OPTION); + memcpy_fromio(hdr, ei_status.mem, sizeof(struct e8390_pkt_hdr)); + outw(option_reg, ioaddr + HPP_OPTION); + hdr->count = (le16_to_cpu(hdr->count) + 3) & ~3; /* Round up allocation. */ +} + +static void +hpp_mem_block_input(struct net_device *dev, int count, struct sk_buff *skb, int ring_offset) +{ + int ioaddr = dev->base_addr - NIC_OFFSET; + int option_reg = inw(ioaddr + HPP_OPTION); + + outw(ring_offset, ioaddr + HPP_IN_ADDR); + + outw(option_reg & ~(MemDisable + BootROMEnb), ioaddr + HPP_OPTION); + + /* Caution: this relies on get_8390_hdr() rounding up count! + Also note that we *can't* use eth_io_copy_and_sum() because + it will not always copy "count" bytes (e.g. padded IP). */ + + memcpy_fromio(skb->data, ei_status.mem, count); + outw(option_reg, ioaddr + HPP_OPTION); +} + +/* A special note: we *must* always transfer >=16 bit words. + It's always safe to round up, so we do. */ +static void +hpp_io_block_output(struct net_device *dev, int count, + const unsigned char *buf, int start_page) +{ + int ioaddr = dev->base_addr - NIC_OFFSET; + outw(start_page << 8, ioaddr + HPP_OUT_ADDR); + outsl(ioaddr + HP_DATAPORT, buf, (count+3)>>2); +} + +static void +hpp_mem_block_output(struct net_device *dev, int count, + const unsigned char *buf, int start_page) +{ + int ioaddr = dev->base_addr - NIC_OFFSET; + int option_reg = inw(ioaddr + HPP_OPTION); + + outw(start_page << 8, ioaddr + HPP_OUT_ADDR); + outw(option_reg & ~(MemDisable + BootROMEnb), ioaddr + HPP_OPTION); + memcpy_toio(ei_status.mem, buf, (count + 3) & ~3); + outw(option_reg, ioaddr + HPP_OPTION); +} + + +#ifdef MODULE +#define MAX_HPP_CARDS 4 /* Max number of HPP cards per module */ +static struct net_device *dev_hpp[MAX_HPP_CARDS]; +static int io[MAX_HPP_CARDS]; +static int irq[MAX_HPP_CARDS]; + +module_param_array(io, int, NULL, 0); +module_param_array(irq, int, NULL, 0); +MODULE_PARM_DESC(io, "I/O port address(es)"); +MODULE_PARM_DESC(irq, "IRQ number(s); ignored if properly detected"); +MODULE_DESCRIPTION("HP PC-LAN+ ISA ethernet driver"); +MODULE_LICENSE("GPL"); + +/* This is set up so that only a single autoprobe takes place per call. +ISA device autoprobes on a running machine are not recommended. */ +int __init +init_module(void) +{ + struct net_device *dev; + int this_dev, found = 0; + + for (this_dev = 0; this_dev < MAX_HPP_CARDS; this_dev++) { + if (io[this_dev] == 0) { + if (this_dev != 0) break; /* only autoprobe 1st one */ + printk(KERN_NOTICE "hp-plus.c: Presently autoprobing (not recommended) for a single card.\n"); + } + dev = alloc_eip_netdev(); + if (!dev) + break; + dev->irq = irq[this_dev]; + dev->base_addr = io[this_dev]; + if (do_hpp_probe(dev) == 0) { + dev_hpp[found++] = dev; + continue; + } + free_netdev(dev); + printk(KERN_WARNING "hp-plus.c: No HP-Plus card found (i/o = 0x%x).\n", io[this_dev]); + break; + } + if (found) + return 0; + return -ENXIO; +} + +static void cleanup_card(struct net_device *dev) +{ + /* NB: hpp_close() handles free_irq */ + iounmap(ei_status.mem); + release_region(dev->base_addr - NIC_OFFSET, HP_IO_EXTENT); +} + +void __exit +cleanup_module(void) +{ + int this_dev; + + for (this_dev = 0; this_dev < MAX_HPP_CARDS; this_dev++) { + struct net_device *dev = dev_hpp[this_dev]; + if (dev) { + unregister_netdev(dev); + cleanup_card(dev); + free_netdev(dev); + } + } +} +#endif /* MODULE */ diff --git a/drivers/net/ethernet/8390/hp.c b/drivers/net/ethernet/8390/hp.c new file mode 100644 index 000000000000..18564d4a7c04 --- /dev/null +++ b/drivers/net/ethernet/8390/hp.c @@ -0,0 +1,439 @@ +/* hp.c: A HP LAN ethernet driver for linux. */ +/* + Written 1993-94 by Donald Becker. + + Copyright 1993 United States Government as represented by the + Director, National Security Agency. + + This software may be used and distributed according to the terms + of the GNU General Public License, incorporated herein by reference. + + The author may be reached as becker@scyld.com, or C/O + Scyld Computing Corporation + 410 Severn Ave., Suite 210 + Annapolis MD 21403 + + This is a driver for the HP PC-LAN adaptors. + + Sources: + The Crynwr packet driver. +*/ + +static const char version[] = + "hp.c:v1.10 9/23/94 Donald Becker (becker@cesdis.gsfc.nasa.gov)\n"; + + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/ioport.h> +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/delay.h> + +#include <asm/system.h> +#include <asm/io.h> + +#include "8390.h" + +#define DRV_NAME "hp" + +/* A zero-terminated list of I/O addresses to be probed. */ +static unsigned int hppclan_portlist[] __initdata = +{ 0x300, 0x320, 0x340, 0x280, 0x2C0, 0x200, 0x240, 0}; + +#define HP_IO_EXTENT 32 + +#define HP_DATAPORT 0x0c /* "Remote DMA" data port. */ +#define HP_ID 0x07 +#define HP_CONFIGURE 0x08 /* Configuration register. */ +#define HP_RUN 0x01 /* 1 == Run, 0 == reset. */ +#define HP_IRQ 0x0E /* Mask for software-configured IRQ line. */ +#define HP_DATAON 0x10 /* Turn on dataport */ +#define NIC_OFFSET 0x10 /* Offset the 8390 registers. */ + +#define HP_START_PG 0x00 /* First page of TX buffer */ +#define HP_8BSTOP_PG 0x80 /* Last page +1 of RX ring */ +#define HP_16BSTOP_PG 0xFF /* Same, for 16 bit cards. */ + +static int hp_probe1(struct net_device *dev, int ioaddr); + +static void hp_reset_8390(struct net_device *dev); +static void hp_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, + int ring_page); +static void hp_block_input(struct net_device *dev, int count, + struct sk_buff *skb , int ring_offset); +static void hp_block_output(struct net_device *dev, int count, + const unsigned char *buf, int start_page); + +static void hp_init_card(struct net_device *dev); + +/* The map from IRQ number to HP_CONFIGURE register setting. */ +/* My default is IRQ5 0 1 2 3 4 5 6 7 8 9 10 11 */ +static char irqmap[16] __initdata= { 0, 0, 4, 6, 8,10, 0,14, 0, 4, 2,12,0,0,0,0}; + + +/* Probe for an HP LAN adaptor. + Also initialize the card and fill in STATION_ADDR with the station + address. */ + +static int __init do_hp_probe(struct net_device *dev) +{ + int i; + int base_addr = dev->base_addr; + int irq = dev->irq; + + if (base_addr > 0x1ff) /* Check a single specified location. */ + return hp_probe1(dev, base_addr); + else if (base_addr != 0) /* Don't probe at all. */ + return -ENXIO; + + for (i = 0; hppclan_portlist[i]; i++) { + if (hp_probe1(dev, hppclan_portlist[i]) == 0) + return 0; + dev->irq = irq; + } + + return -ENODEV; +} + +#ifndef MODULE +struct net_device * __init hp_probe(int unit) +{ + struct net_device *dev = alloc_eip_netdev(); + int err; + + if (!dev) + return ERR_PTR(-ENOMEM); + + sprintf(dev->name, "eth%d", unit); + netdev_boot_setup_check(dev); + + err = do_hp_probe(dev); + if (err) + goto out; + return dev; +out: + free_netdev(dev); + return ERR_PTR(err); +} +#endif + +static int __init hp_probe1(struct net_device *dev, int ioaddr) +{ + int i, retval, board_id, wordmode; + const char *name; + static unsigned version_printed; + + if (!request_region(ioaddr, HP_IO_EXTENT, DRV_NAME)) + return -EBUSY; + + /* Check for the HP physical address, 08 00 09 xx xx xx. */ + /* This really isn't good enough: we may pick up HP LANCE boards + also! Avoid the lance 0x5757 signature. */ + if (inb(ioaddr) != 0x08 + || inb(ioaddr+1) != 0x00 + || inb(ioaddr+2) != 0x09 + || inb(ioaddr+14) == 0x57) { + retval = -ENODEV; + goto out; + } + + /* Set up the parameters based on the board ID. + If you have additional mappings, please mail them to me -djb. */ + if ((board_id = inb(ioaddr + HP_ID)) & 0x80) { + name = "HP27247"; + wordmode = 1; + } else { + name = "HP27250"; + wordmode = 0; + } + + if (ei_debug && version_printed++ == 0) + printk(version); + + printk("%s: %s (ID %02x) at %#3x,", dev->name, name, board_id, ioaddr); + + for(i = 0; i < ETHER_ADDR_LEN; i++) + dev->dev_addr[i] = inb(ioaddr + i); + + printk(" %pM", dev->dev_addr); + + /* Snarf the interrupt now. Someday this could be moved to open(). */ + if (dev->irq < 2) { + static const int irq_16list[] = { 11, 10, 5, 3, 4, 7, 9, 0}; + static const int irq_8list[] = { 7, 5, 3, 4, 9, 0}; + const int *irqp = wordmode ? irq_16list : irq_8list; + do { + int irq = *irqp; + if (request_irq (irq, NULL, 0, "bogus", NULL) != -EBUSY) { + unsigned long cookie = probe_irq_on(); + /* Twinkle the interrupt, and check if it's seen. */ + outb_p(irqmap[irq] | HP_RUN, ioaddr + HP_CONFIGURE); + outb_p( 0x00 | HP_RUN, ioaddr + HP_CONFIGURE); + if (irq == probe_irq_off(cookie) /* It's a good IRQ line! */ + && request_irq (irq, eip_interrupt, 0, DRV_NAME, dev) == 0) { + printk(" selecting IRQ %d.\n", irq); + dev->irq = *irqp; + break; + } + } + } while (*++irqp); + if (*irqp == 0) { + printk(" no free IRQ lines.\n"); + retval = -EBUSY; + goto out; + } + } else { + if (dev->irq == 2) + dev->irq = 9; + if ((retval = request_irq(dev->irq, eip_interrupt, 0, DRV_NAME, dev))) { + printk (" unable to get IRQ %d.\n", dev->irq); + goto out; + } + } + + /* Set the base address to point to the NIC, not the "real" base! */ + dev->base_addr = ioaddr + NIC_OFFSET; + dev->netdev_ops = &eip_netdev_ops; + + ei_status.name = name; + ei_status.word16 = wordmode; + ei_status.tx_start_page = HP_START_PG; + ei_status.rx_start_page = HP_START_PG + TX_PAGES; + ei_status.stop_page = wordmode ? HP_16BSTOP_PG : HP_8BSTOP_PG; + + ei_status.reset_8390 = hp_reset_8390; + ei_status.get_8390_hdr = hp_get_8390_hdr; + ei_status.block_input = hp_block_input; + ei_status.block_output = hp_block_output; + hp_init_card(dev); + + retval = register_netdev(dev); + if (retval) + goto out1; + return 0; +out1: + free_irq(dev->irq, dev); +out: + release_region(ioaddr, HP_IO_EXTENT); + return retval; +} + +static void +hp_reset_8390(struct net_device *dev) +{ + int hp_base = dev->base_addr - NIC_OFFSET; + int saved_config = inb_p(hp_base + HP_CONFIGURE); + + if (ei_debug > 1) printk("resetting the 8390 time=%ld...", jiffies); + outb_p(0x00, hp_base + HP_CONFIGURE); + ei_status.txing = 0; + /* Pause just a few cycles for the hardware reset to take place. */ + udelay(5); + + outb_p(saved_config, hp_base + HP_CONFIGURE); + udelay(5); + + if ((inb_p(hp_base+NIC_OFFSET+EN0_ISR) & ENISR_RESET) == 0) + printk("%s: hp_reset_8390() did not complete.\n", dev->name); + + if (ei_debug > 1) printk("8390 reset done (%ld).", jiffies); +} + +static void +hp_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page) +{ + int nic_base = dev->base_addr; + int saved_config = inb_p(nic_base - NIC_OFFSET + HP_CONFIGURE); + + outb_p(saved_config | HP_DATAON, nic_base - NIC_OFFSET + HP_CONFIGURE); + outb_p(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base); + outb_p(sizeof(struct e8390_pkt_hdr), nic_base + EN0_RCNTLO); + outb_p(0, nic_base + EN0_RCNTHI); + outb_p(0, nic_base + EN0_RSARLO); /* On page boundary */ + outb_p(ring_page, nic_base + EN0_RSARHI); + outb_p(E8390_RREAD+E8390_START, nic_base); + + if (ei_status.word16) + insw(nic_base - NIC_OFFSET + HP_DATAPORT, hdr, sizeof(struct e8390_pkt_hdr)>>1); + else + insb(nic_base - NIC_OFFSET + HP_DATAPORT, hdr, sizeof(struct e8390_pkt_hdr)); + + outb_p(saved_config & (~HP_DATAON), nic_base - NIC_OFFSET + HP_CONFIGURE); +} + +/* Block input and output, similar to the Crynwr packet driver. If you are + porting to a new ethercard look at the packet driver source for hints. + The HP LAN doesn't use shared memory -- we put the packet + out through the "remote DMA" dataport. */ + +static void +hp_block_input(struct net_device *dev, int count, struct sk_buff *skb, int ring_offset) +{ + int nic_base = dev->base_addr; + int saved_config = inb_p(nic_base - NIC_OFFSET + HP_CONFIGURE); + int xfer_count = count; + char *buf = skb->data; + + outb_p(saved_config | HP_DATAON, nic_base - NIC_OFFSET + HP_CONFIGURE); + outb_p(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base); + outb_p(count & 0xff, nic_base + EN0_RCNTLO); + outb_p(count >> 8, nic_base + EN0_RCNTHI); + outb_p(ring_offset & 0xff, nic_base + EN0_RSARLO); + outb_p(ring_offset >> 8, nic_base + EN0_RSARHI); + outb_p(E8390_RREAD+E8390_START, nic_base); + if (ei_status.word16) { + insw(nic_base - NIC_OFFSET + HP_DATAPORT,buf,count>>1); + if (count & 0x01) + buf[count-1] = inb(nic_base - NIC_OFFSET + HP_DATAPORT), xfer_count++; + } else { + insb(nic_base - NIC_OFFSET + HP_DATAPORT, buf, count); + } + /* This is for the ALPHA version only, remove for later releases. */ + if (ei_debug > 0) { /* DMA termination address check... */ + int high = inb_p(nic_base + EN0_RSARHI); + int low = inb_p(nic_base + EN0_RSARLO); + int addr = (high << 8) + low; + /* Check only the lower 8 bits so we can ignore ring wrap. */ + if (((ring_offset + xfer_count) & 0xff) != (addr & 0xff)) + printk("%s: RX transfer address mismatch, %#4.4x vs. %#4.4x (actual).\n", + dev->name, ring_offset + xfer_count, addr); + } + outb_p(saved_config & (~HP_DATAON), nic_base - NIC_OFFSET + HP_CONFIGURE); +} + +static void +hp_block_output(struct net_device *dev, int count, + const unsigned char *buf, int start_page) +{ + int nic_base = dev->base_addr; + int saved_config = inb_p(nic_base - NIC_OFFSET + HP_CONFIGURE); + + outb_p(saved_config | HP_DATAON, nic_base - NIC_OFFSET + HP_CONFIGURE); + /* Round the count up for word writes. Do we need to do this? + What effect will an odd byte count have on the 8390? + I should check someday. */ + if (ei_status.word16 && (count & 0x01)) + count++; + /* We should already be in page 0, but to be safe... */ + outb_p(E8390_PAGE0+E8390_START+E8390_NODMA, nic_base); + +#ifdef NE8390_RW_BUGFIX + /* Handle the read-before-write bug the same way as the + Crynwr packet driver -- the NatSemi method doesn't work. */ + outb_p(0x42, nic_base + EN0_RCNTLO); + outb_p(0, nic_base + EN0_RCNTHI); + outb_p(0xff, nic_base + EN0_RSARLO); + outb_p(0x00, nic_base + EN0_RSARHI); +#define NE_CMD 0x00 + outb_p(E8390_RREAD+E8390_START, nic_base + NE_CMD); + /* Make certain that the dummy read has occurred. */ + inb_p(0x61); + inb_p(0x61); +#endif + + outb_p(count & 0xff, nic_base + EN0_RCNTLO); + outb_p(count >> 8, nic_base + EN0_RCNTHI); + outb_p(0x00, nic_base + EN0_RSARLO); + outb_p(start_page, nic_base + EN0_RSARHI); + + outb_p(E8390_RWRITE+E8390_START, nic_base); + if (ei_status.word16) { + /* Use the 'rep' sequence for 16 bit boards. */ + outsw(nic_base - NIC_OFFSET + HP_DATAPORT, buf, count>>1); + } else { + outsb(nic_base - NIC_OFFSET + HP_DATAPORT, buf, count); + } + + /* DON'T check for 'inb_p(EN0_ISR) & ENISR_RDC' here -- it's broken! */ + + /* This is for the ALPHA version only, remove for later releases. */ + if (ei_debug > 0) { /* DMA termination address check... */ + int high = inb_p(nic_base + EN0_RSARHI); + int low = inb_p(nic_base + EN0_RSARLO); + int addr = (high << 8) + low; + if ((start_page << 8) + count != addr) + printk("%s: TX Transfer address mismatch, %#4.4x vs. %#4.4x.\n", + dev->name, (start_page << 8) + count, addr); + } + outb_p(saved_config & (~HP_DATAON), nic_base - NIC_OFFSET + HP_CONFIGURE); +} + +/* This function resets the ethercard if something screws up. */ +static void __init +hp_init_card(struct net_device *dev) +{ + int irq = dev->irq; + NS8390p_init(dev, 0); + outb_p(irqmap[irq&0x0f] | HP_RUN, + dev->base_addr - NIC_OFFSET + HP_CONFIGURE); +} + +#ifdef MODULE +#define MAX_HP_CARDS 4 /* Max number of HP cards per module */ +static struct net_device *dev_hp[MAX_HP_CARDS]; +static int io[MAX_HP_CARDS]; +static int irq[MAX_HP_CARDS]; + +module_param_array(io, int, NULL, 0); +module_param_array(irq, int, NULL, 0); +MODULE_PARM_DESC(io, "I/O base address(es)"); +MODULE_PARM_DESC(irq, "IRQ number(s) (assigned)"); +MODULE_DESCRIPTION("HP PC-LAN ISA ethernet driver"); +MODULE_LICENSE("GPL"); + +/* This is set up so that only a single autoprobe takes place per call. +ISA device autoprobes on a running machine are not recommended. */ +int __init +init_module(void) +{ + struct net_device *dev; + int this_dev, found = 0; + + for (this_dev = 0; this_dev < MAX_HP_CARDS; this_dev++) { + if (io[this_dev] == 0) { + if (this_dev != 0) break; /* only autoprobe 1st one */ + printk(KERN_NOTICE "hp.c: Presently autoprobing (not recommended) for a single card.\n"); + } + dev = alloc_eip_netdev(); + if (!dev) + break; + dev->irq = irq[this_dev]; + dev->base_addr = io[this_dev]; + if (do_hp_probe(dev) == 0) { + dev_hp[found++] = dev; + continue; + } + free_netdev(dev); + printk(KERN_WARNING "hp.c: No HP card found (i/o = 0x%x).\n", io[this_dev]); + break; + } + if (found) + return 0; + return -ENXIO; +} + +static void cleanup_card(struct net_device *dev) +{ + free_irq(dev->irq, dev); + release_region(dev->base_addr - NIC_OFFSET, HP_IO_EXTENT); +} + +void __exit +cleanup_module(void) +{ + int this_dev; + + for (this_dev = 0; this_dev < MAX_HP_CARDS; this_dev++) { + struct net_device *dev = dev_hp[this_dev]; + if (dev) { + unregister_netdev(dev); + cleanup_card(dev); + free_netdev(dev); + } + } +} +#endif /* MODULE */ diff --git a/drivers/net/ethernet/8390/hydra.c b/drivers/net/ethernet/8390/hydra.c new file mode 100644 index 000000000000..1cd481c04202 --- /dev/null +++ b/drivers/net/ethernet/8390/hydra.c @@ -0,0 +1,273 @@ +/* New Hydra driver using generic 8390 core */ +/* Based on old hydra driver by Topi Kanerva (topi@susanna.oulu.fi) */ + +/* This file is subject to the terms and conditions of the GNU General */ +/* Public License. See the file COPYING in the main directory of the */ +/* Linux distribution for more details. */ + +/* Peter De Schrijver (p2@mind.be) */ +/* Oldenburg 2000 */ + +/* The Amiganet is a Zorro-II board made by Hydra Systems. It contains a */ +/* NS8390 NIC (network interface controller) clone, 16 or 64K on-board RAM */ +/* and 10BASE-2 (thin coax) and AUI connectors. */ + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/string.h> +#include <linux/errno.h> +#include <linux/ioport.h> +#include <linux/interrupt.h> +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/skbuff.h> +#include <linux/init.h> +#include <linux/bitops.h> + +#include <asm/io.h> +#include <asm/irq.h> +#include <asm/amigaints.h> +#include <asm/amigahw.h> +#include <linux/zorro.h> + +#define EI_SHIFT(x) (ei_local->reg_offset[x]) +#define ei_inb(port) in_8(port) +#define ei_outb(val,port) out_8(port,val) +#define ei_inb_p(port) in_8(port) +#define ei_outb_p(val,port) out_8(port,val) + +static const char version[] = + "8390.c:v1.10cvs 9/23/94 Donald Becker (becker@cesdis.gsfc.nasa.gov)\n"; + +#include "lib8390.c" + +#define NE_EN0_DCFG (0x0e*2) + +#define NESM_START_PG 0x0 /* First page of TX buffer */ +#define NESM_STOP_PG 0x40 /* Last page +1 of RX ring */ + +#define HYDRA_NIC_BASE 0xffe1 +#define HYDRA_ADDRPROM 0xffc0 +#define HYDRA_VERSION "v3.0alpha" + +#define WORDSWAP(a) ((((a)>>8)&0xff) | ((a)<<8)) + + +static int __devinit hydra_init_one(struct zorro_dev *z, + const struct zorro_device_id *ent); +static int __devinit hydra_init(struct zorro_dev *z); +static int hydra_open(struct net_device *dev); +static int hydra_close(struct net_device *dev); +static void hydra_reset_8390(struct net_device *dev); +static void hydra_get_8390_hdr(struct net_device *dev, + struct e8390_pkt_hdr *hdr, int ring_page); +static void hydra_block_input(struct net_device *dev, int count, + struct sk_buff *skb, int ring_offset); +static void hydra_block_output(struct net_device *dev, int count, + const unsigned char *buf, int start_page); +static void __devexit hydra_remove_one(struct zorro_dev *z); + +static struct zorro_device_id hydra_zorro_tbl[] __devinitdata = { + { ZORRO_PROD_HYDRA_SYSTEMS_AMIGANET }, + { 0 } +}; +MODULE_DEVICE_TABLE(zorro, hydra_zorro_tbl); + +static struct zorro_driver hydra_driver = { + .name = "hydra", + .id_table = hydra_zorro_tbl, + .probe = hydra_init_one, + .remove = __devexit_p(hydra_remove_one), +}; + +static int __devinit hydra_init_one(struct zorro_dev *z, + const struct zorro_device_id *ent) +{ + int err; + + if (!request_mem_region(z->resource.start, 0x10000, "Hydra")) + return -EBUSY; + if ((err = hydra_init(z))) { + release_mem_region(z->resource.start, 0x10000); + return -EBUSY; + } + return 0; +} + +static const struct net_device_ops hydra_netdev_ops = { + .ndo_open = hydra_open, + .ndo_stop = hydra_close, + + .ndo_start_xmit = __ei_start_xmit, + .ndo_tx_timeout = __ei_tx_timeout, + .ndo_get_stats = __ei_get_stats, + .ndo_set_multicast_list = __ei_set_multicast_list, + .ndo_validate_addr = eth_validate_addr, + .ndo_set_mac_address = eth_mac_addr, + .ndo_change_mtu = eth_change_mtu, +#ifdef CONFIG_NET_POLL_CONTROLLER + .ndo_poll_controller = __ei_poll, +#endif +}; + +static int __devinit hydra_init(struct zorro_dev *z) +{ + struct net_device *dev; + unsigned long board = ZTWO_VADDR(z->resource.start); + unsigned long ioaddr = board+HYDRA_NIC_BASE; + const char name[] = "NE2000"; + int start_page, stop_page; + int j; + int err; + + static u32 hydra_offsets[16] = { + 0x00, 0x02, 0x04, 0x06, 0x08, 0x0a, 0x0c, 0x0e, + 0x10, 0x12, 0x14, 0x16, 0x18, 0x1a, 0x1c, 0x1e, + }; + + dev = ____alloc_ei_netdev(0); + if (!dev) + return -ENOMEM; + + for(j = 0; j < ETHER_ADDR_LEN; j++) + dev->dev_addr[j] = *((u8 *)(board + HYDRA_ADDRPROM + 2*j)); + + /* We must set the 8390 for word mode. */ + z_writeb(0x4b, ioaddr + NE_EN0_DCFG); + start_page = NESM_START_PG; + stop_page = NESM_STOP_PG; + + dev->base_addr = ioaddr; + dev->irq = IRQ_AMIGA_PORTS; + + /* Install the Interrupt handler */ + if (request_irq(IRQ_AMIGA_PORTS, __ei_interrupt, IRQF_SHARED, "Hydra Ethernet", + dev)) { + free_netdev(dev); + return -EAGAIN; + } + + ei_status.name = name; + ei_status.tx_start_page = start_page; + ei_status.stop_page = stop_page; + ei_status.word16 = 1; + ei_status.bigendian = 1; + + ei_status.rx_start_page = start_page + TX_PAGES; + + ei_status.reset_8390 = hydra_reset_8390; + ei_status.block_input = hydra_block_input; + ei_status.block_output = hydra_block_output; + ei_status.get_8390_hdr = hydra_get_8390_hdr; + ei_status.reg_offset = hydra_offsets; + + dev->netdev_ops = &hydra_netdev_ops; + __NS8390_init(dev, 0); + + err = register_netdev(dev); + if (err) { + free_irq(IRQ_AMIGA_PORTS, dev); + free_netdev(dev); + return err; + } + + zorro_set_drvdata(z, dev); + + pr_info("%s: Hydra at %pR, address %pM (hydra.c " HYDRA_VERSION ")\n", + dev->name, &z->resource, dev->dev_addr); + + return 0; +} + +static int hydra_open(struct net_device *dev) +{ + __ei_open(dev); + return 0; +} + +static int hydra_close(struct net_device *dev) +{ + if (ei_debug > 1) + printk(KERN_DEBUG "%s: Shutting down ethercard.\n", dev->name); + __ei_close(dev); + return 0; +} + +static void hydra_reset_8390(struct net_device *dev) +{ + printk(KERN_INFO "Hydra hw reset not there\n"); +} + +static void hydra_get_8390_hdr(struct net_device *dev, + struct e8390_pkt_hdr *hdr, int ring_page) +{ + int nic_base = dev->base_addr; + short *ptrs; + unsigned long hdr_start= (nic_base-HYDRA_NIC_BASE) + + ((ring_page - NESM_START_PG)<<8); + ptrs = (short *)hdr; + + *(ptrs++) = z_readw(hdr_start); + *((short *)hdr) = WORDSWAP(*((short *)hdr)); + hdr_start += 2; + *(ptrs++) = z_readw(hdr_start); + *((short *)hdr+1) = WORDSWAP(*((short *)hdr+1)); +} + +static void hydra_block_input(struct net_device *dev, int count, + struct sk_buff *skb, int ring_offset) +{ + unsigned long nic_base = dev->base_addr; + unsigned long mem_base = nic_base - HYDRA_NIC_BASE; + unsigned long xfer_start = mem_base + ring_offset - (NESM_START_PG<<8); + + if (count&1) + count++; + + if (xfer_start+count > mem_base + (NESM_STOP_PG<<8)) { + int semi_count = (mem_base + (NESM_STOP_PG<<8)) - xfer_start; + + z_memcpy_fromio(skb->data,xfer_start,semi_count); + count -= semi_count; + z_memcpy_fromio(skb->data+semi_count, mem_base, count); + } else + z_memcpy_fromio(skb->data, xfer_start,count); + +} + +static void hydra_block_output(struct net_device *dev, int count, + const unsigned char *buf, int start_page) +{ + unsigned long nic_base = dev->base_addr; + unsigned long mem_base = nic_base - HYDRA_NIC_BASE; + + if (count&1) + count++; + + z_memcpy_toio(mem_base+((start_page - NESM_START_PG)<<8), buf, count); +} + +static void __devexit hydra_remove_one(struct zorro_dev *z) +{ + struct net_device *dev = zorro_get_drvdata(z); + + unregister_netdev(dev); + free_irq(IRQ_AMIGA_PORTS, dev); + release_mem_region(ZTWO_PADDR(dev->base_addr)-HYDRA_NIC_BASE, 0x10000); + free_netdev(dev); +} + +static int __init hydra_init_module(void) +{ + return zorro_register_driver(&hydra_driver); +} + +static void __exit hydra_cleanup_module(void) +{ + zorro_unregister_driver(&hydra_driver); +} + +module_init(hydra_init_module); +module_exit(hydra_cleanup_module); + +MODULE_LICENSE("GPL"); diff --git a/drivers/net/ethernet/8390/lib8390.c b/drivers/net/ethernet/8390/lib8390.c new file mode 100644 index 000000000000..05ae21435bfd --- /dev/null +++ b/drivers/net/ethernet/8390/lib8390.c @@ -0,0 +1,1080 @@ +/* 8390.c: A general NS8390 ethernet driver core for linux. */ +/* + Written 1992-94 by Donald Becker. + + Copyright 1993 United States Government as represented by the + Director, National Security Agency. + + This software may be used and distributed according to the terms + of the GNU General Public License, incorporated herein by reference. + + The author may be reached as becker@scyld.com, or C/O + Scyld Computing Corporation + 410 Severn Ave., Suite 210 + Annapolis MD 21403 + + + This is the chip-specific code for many 8390-based ethernet adaptors. + This is not a complete driver, it must be combined with board-specific + code such as ne.c, wd.c, 3c503.c, etc. + + Seeing how at least eight drivers use this code, (not counting the + PCMCIA ones either) it is easy to break some card by what seems like + a simple innocent change. Please contact me or Donald if you think + you have found something that needs changing. -- PG + + + Changelog: + + Paul Gortmaker : remove set_bit lock, other cleanups. + Paul Gortmaker : add ei_get_8390_hdr() so we can pass skb's to + ei_block_input() for eth_io_copy_and_sum(). + Paul Gortmaker : exchange static int ei_pingpong for a #define, + also add better Tx error handling. + Paul Gortmaker : rewrite Rx overrun handling as per NS specs. + Alexey Kuznetsov : use the 8390's six bit hash multicast filter. + Paul Gortmaker : tweak ANK's above multicast changes a bit. + Paul Gortmaker : update packet statistics for v2.1.x + Alan Cox : support arbitrary stupid port mappings on the + 68K Macintosh. Support >16bit I/O spaces + Paul Gortmaker : add kmod support for auto-loading of the 8390 + module by all drivers that require it. + Alan Cox : Spinlocking work, added 'BUG_83C690' + Paul Gortmaker : Separate out Tx timeout code from Tx path. + Paul Gortmaker : Remove old unused single Tx buffer code. + Hayato Fujiwara : Add m32r support. + Paul Gortmaker : use skb_padto() instead of stack scratch area + + Sources: + The National Semiconductor LAN Databook, and the 3Com 3c503 databook. + + */ + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/jiffies.h> +#include <linux/fs.h> +#include <linux/types.h> +#include <linux/string.h> +#include <linux/bitops.h> +#include <asm/system.h> +#include <linux/uaccess.h> +#include <linux/io.h> +#include <asm/irq.h> +#include <linux/delay.h> +#include <linux/errno.h> +#include <linux/fcntl.h> +#include <linux/in.h> +#include <linux/interrupt.h> +#include <linux/init.h> +#include <linux/crc32.h> + +#include <linux/netdevice.h> +#include <linux/etherdevice.h> + +#define NS8390_CORE +#include "8390.h" + +#define BUG_83C690 + +/* These are the operational function interfaces to board-specific + routines. + void reset_8390(struct net_device *dev) + Resets the board associated with DEV, including a hardware reset of + the 8390. This is only called when there is a transmit timeout, and + it is always followed by 8390_init(). + void block_output(struct net_device *dev, int count, const unsigned char *buf, + int start_page) + Write the COUNT bytes of BUF to the packet buffer at START_PAGE. The + "page" value uses the 8390's 256-byte pages. + void get_8390_hdr(struct net_device *dev, struct e8390_hdr *hdr, int ring_page) + Read the 4 byte, page aligned 8390 header. *If* there is a + subsequent read, it will be of the rest of the packet. + void block_input(struct net_device *dev, int count, struct sk_buff *skb, int ring_offset) + Read COUNT bytes from the packet buffer into the skb data area. Start + reading from RING_OFFSET, the address as the 8390 sees it. This will always + follow the read of the 8390 header. +*/ +#define ei_reset_8390 (ei_local->reset_8390) +#define ei_block_output (ei_local->block_output) +#define ei_block_input (ei_local->block_input) +#define ei_get_8390_hdr (ei_local->get_8390_hdr) + +/* use 0 for production, 1 for verification, >2 for debug */ +#ifndef ei_debug +int ei_debug = 1; +#endif + +/* Index to functions. */ +static void ei_tx_intr(struct net_device *dev); +static void ei_tx_err(struct net_device *dev); +static void ei_receive(struct net_device *dev); +static void ei_rx_overrun(struct net_device *dev); + +/* Routines generic to NS8390-based boards. */ +static void NS8390_trigger_send(struct net_device *dev, unsigned int length, + int start_page); +static void do_set_multicast_list(struct net_device *dev); +static void __NS8390_init(struct net_device *dev, int startp); + +/* + * SMP and the 8390 setup. + * + * The 8390 isn't exactly designed to be multithreaded on RX/TX. There is + * a page register that controls bank and packet buffer access. We guard + * this with ei_local->page_lock. Nobody should assume or set the page other + * than zero when the lock is not held. Lock holders must restore page 0 + * before unlocking. Even pure readers must take the lock to protect in + * page 0. + * + * To make life difficult the chip can also be very slow. We therefore can't + * just use spinlocks. For the longer lockups we disable the irq the device + * sits on and hold the lock. We must hold the lock because there is a dual + * processor case other than interrupts (get stats/set multicast list in + * parallel with each other and transmit). + * + * Note: in theory we can just disable the irq on the card _but_ there is + * a latency on SMP irq delivery. So we can easily go "disable irq" "sync irqs" + * enter lock, take the queued irq. So we waddle instead of flying. + * + * Finally by special arrangement for the purpose of being generally + * annoying the transmit function is called bh atomic. That places + * restrictions on the user context callers as disable_irq won't save + * them. + * + * Additional explanation of problems with locking by Alan Cox: + * + * "The author (me) didn't use spin_lock_irqsave because the slowness of the + * card means that approach caused horrible problems like losing serial data + * at 38400 baud on some chips. Remember many 8390 nics on PCI were ISA + * chips with FPGA front ends. + * + * Ok the logic behind the 8390 is very simple: + * + * Things to know + * - IRQ delivery is asynchronous to the PCI bus + * - Blocking the local CPU IRQ via spin locks was too slow + * - The chip has register windows needing locking work + * + * So the path was once (I say once as people appear to have changed it + * in the mean time and it now looks rather bogus if the changes to use + * disable_irq_nosync_irqsave are disabling the local IRQ) + * + * + * Take the page lock + * Mask the IRQ on chip + * Disable the IRQ (but not mask locally- someone seems to have + * broken this with the lock validator stuff) + * [This must be _nosync as the page lock may otherwise + * deadlock us] + * Drop the page lock and turn IRQs back on + * + * At this point an existing IRQ may still be running but we can't + * get a new one + * + * Take the lock (so we know the IRQ has terminated) but don't mask + * the IRQs on the processor + * Set irqlock [for debug] + * + * Transmit (slow as ****) + * + * re-enable the IRQ + * + * + * We have to use disable_irq because otherwise you will get delayed + * interrupts on the APIC bus deadlocking the transmit path. + * + * Quite hairy but the chip simply wasn't designed for SMP and you can't + * even ACK an interrupt without risking corrupting other parallel + * activities on the chip." [lkml, 25 Jul 2007] + */ + + + +/** + * ei_open - Open/initialize the board. + * @dev: network device to initialize + * + * This routine goes all-out, setting everything + * up anew at each open, even though many of these registers should only + * need to be set once at boot. + */ +static int __ei_open(struct net_device *dev) +{ + unsigned long flags; + struct ei_device *ei_local = netdev_priv(dev); + + if (dev->watchdog_timeo <= 0) + dev->watchdog_timeo = TX_TIMEOUT; + + /* + * Grab the page lock so we own the register set, then call + * the init function. + */ + + spin_lock_irqsave(&ei_local->page_lock, flags); + __NS8390_init(dev, 1); + /* Set the flag before we drop the lock, That way the IRQ arrives + after its set and we get no silly warnings */ + netif_start_queue(dev); + spin_unlock_irqrestore(&ei_local->page_lock, flags); + ei_local->irqlock = 0; + return 0; +} + +/** + * ei_close - shut down network device + * @dev: network device to close + * + * Opposite of ei_open(). Only used when "ifconfig <devname> down" is done. + */ +static int __ei_close(struct net_device *dev) +{ + struct ei_device *ei_local = netdev_priv(dev); + unsigned long flags; + + /* + * Hold the page lock during close + */ + + spin_lock_irqsave(&ei_local->page_lock, flags); + __NS8390_init(dev, 0); + spin_unlock_irqrestore(&ei_local->page_lock, flags); + netif_stop_queue(dev); + return 0; +} + +/** + * ei_tx_timeout - handle transmit time out condition + * @dev: network device which has apparently fallen asleep + * + * Called by kernel when device never acknowledges a transmit has + * completed (or failed) - i.e. never posted a Tx related interrupt. + */ + +static void __ei_tx_timeout(struct net_device *dev) +{ + unsigned long e8390_base = dev->base_addr; + struct ei_device *ei_local = netdev_priv(dev); + int txsr, isr, tickssofar = jiffies - dev_trans_start(dev); + unsigned long flags; + + dev->stats.tx_errors++; + + spin_lock_irqsave(&ei_local->page_lock, flags); + txsr = ei_inb(e8390_base+EN0_TSR); + isr = ei_inb(e8390_base+EN0_ISR); + spin_unlock_irqrestore(&ei_local->page_lock, flags); + + netdev_dbg(dev, "Tx timed out, %s TSR=%#2x, ISR=%#2x, t=%d\n", + (txsr & ENTSR_ABT) ? "excess collisions." : + (isr) ? "lost interrupt?" : "cable problem?", + txsr, isr, tickssofar); + + if (!isr && !dev->stats.tx_packets) { + /* The 8390 probably hasn't gotten on the cable yet. */ + ei_local->interface_num ^= 1; /* Try a different xcvr. */ + } + + /* Ugly but a reset can be slow, yet must be protected */ + + disable_irq_nosync_lockdep(dev->irq); + spin_lock(&ei_local->page_lock); + + /* Try to restart the card. Perhaps the user has fixed something. */ + ei_reset_8390(dev); + __NS8390_init(dev, 1); + + spin_unlock(&ei_local->page_lock); + enable_irq_lockdep(dev->irq); + netif_wake_queue(dev); +} + +/** + * ei_start_xmit - begin packet transmission + * @skb: packet to be sent + * @dev: network device to which packet is sent + * + * Sends a packet to an 8390 network device. + */ + +static netdev_tx_t __ei_start_xmit(struct sk_buff *skb, + struct net_device *dev) +{ + unsigned long e8390_base = dev->base_addr; + struct ei_device *ei_local = netdev_priv(dev); + int send_length = skb->len, output_page; + unsigned long flags; + char buf[ETH_ZLEN]; + char *data = skb->data; + + if (skb->len < ETH_ZLEN) { + memset(buf, 0, ETH_ZLEN); /* more efficient than doing just the needed bits */ + memcpy(buf, data, skb->len); + send_length = ETH_ZLEN; + data = buf; + } + + /* Mask interrupts from the ethercard. + SMP: We have to grab the lock here otherwise the IRQ handler + on another CPU can flip window and race the IRQ mask set. We end + up trashing the mcast filter not disabling irqs if we don't lock */ + + spin_lock_irqsave(&ei_local->page_lock, flags); + ei_outb_p(0x00, e8390_base + EN0_IMR); + spin_unlock_irqrestore(&ei_local->page_lock, flags); + + + /* + * Slow phase with lock held. + */ + + disable_irq_nosync_lockdep_irqsave(dev->irq, &flags); + + spin_lock(&ei_local->page_lock); + + ei_local->irqlock = 1; + + /* + * We have two Tx slots available for use. Find the first free + * slot, and then perform some sanity checks. With two Tx bufs, + * you get very close to transmitting back-to-back packets. With + * only one Tx buf, the transmitter sits idle while you reload the + * card, leaving a substantial gap between each transmitted packet. + */ + + if (ei_local->tx1 == 0) { + output_page = ei_local->tx_start_page; + ei_local->tx1 = send_length; + if (ei_debug && ei_local->tx2 > 0) + netdev_dbg(dev, "idle transmitter tx2=%d, lasttx=%d, txing=%d\n", + ei_local->tx2, ei_local->lasttx, ei_local->txing); + } else if (ei_local->tx2 == 0) { + output_page = ei_local->tx_start_page + TX_PAGES/2; + ei_local->tx2 = send_length; + if (ei_debug && ei_local->tx1 > 0) + netdev_dbg(dev, "idle transmitter, tx1=%d, lasttx=%d, txing=%d\n", + ei_local->tx1, ei_local->lasttx, ei_local->txing); + } else { /* We should never get here. */ + if (ei_debug) + netdev_dbg(dev, "No Tx buffers free! tx1=%d tx2=%d last=%d\n", + ei_local->tx1, ei_local->tx2, ei_local->lasttx); + ei_local->irqlock = 0; + netif_stop_queue(dev); + ei_outb_p(ENISR_ALL, e8390_base + EN0_IMR); + spin_unlock(&ei_local->page_lock); + enable_irq_lockdep_irqrestore(dev->irq, &flags); + dev->stats.tx_errors++; + return NETDEV_TX_BUSY; + } + + /* + * Okay, now upload the packet and trigger a send if the transmitter + * isn't already sending. If it is busy, the interrupt handler will + * trigger the send later, upon receiving a Tx done interrupt. + */ + + ei_block_output(dev, send_length, data, output_page); + + if (!ei_local->txing) { + ei_local->txing = 1; + NS8390_trigger_send(dev, send_length, output_page); + if (output_page == ei_local->tx_start_page) { + ei_local->tx1 = -1; + ei_local->lasttx = -1; + } else { + ei_local->tx2 = -1; + ei_local->lasttx = -2; + } + } else + ei_local->txqueue++; + + if (ei_local->tx1 && ei_local->tx2) + netif_stop_queue(dev); + else + netif_start_queue(dev); + + /* Turn 8390 interrupts back on. */ + ei_local->irqlock = 0; + ei_outb_p(ENISR_ALL, e8390_base + EN0_IMR); + + spin_unlock(&ei_local->page_lock); + enable_irq_lockdep_irqrestore(dev->irq, &flags); + skb_tx_timestamp(skb); + dev_kfree_skb(skb); + dev->stats.tx_bytes += send_length; + + return NETDEV_TX_OK; +} + +/** + * ei_interrupt - handle the interrupts from an 8390 + * @irq: interrupt number + * @dev_id: a pointer to the net_device + * + * Handle the ether interface interrupts. We pull packets from + * the 8390 via the card specific functions and fire them at the networking + * stack. We also handle transmit completions and wake the transmit path if + * necessary. We also update the counters and do other housekeeping as + * needed. + */ + +static irqreturn_t __ei_interrupt(int irq, void *dev_id) +{ + struct net_device *dev = dev_id; + unsigned long e8390_base = dev->base_addr; + int interrupts, nr_serviced = 0; + struct ei_device *ei_local = netdev_priv(dev); + + /* + * Protect the irq test too. + */ + + spin_lock(&ei_local->page_lock); + + if (ei_local->irqlock) { + /* + * This might just be an interrupt for a PCI device sharing + * this line + */ + netdev_err(dev, "Interrupted while interrupts are masked! isr=%#2x imr=%#2x\n", + ei_inb_p(e8390_base + EN0_ISR), + ei_inb_p(e8390_base + EN0_IMR)); + spin_unlock(&ei_local->page_lock); + return IRQ_NONE; + } + + /* Change to page 0 and read the intr status reg. */ + ei_outb_p(E8390_NODMA+E8390_PAGE0, e8390_base + E8390_CMD); + if (ei_debug > 3) + netdev_dbg(dev, "interrupt(isr=%#2.2x)\n", + ei_inb_p(e8390_base + EN0_ISR)); + + /* !!Assumption!! -- we stay in page 0. Don't break this. */ + while ((interrupts = ei_inb_p(e8390_base + EN0_ISR)) != 0 && + ++nr_serviced < MAX_SERVICE) { + if (!netif_running(dev)) { + netdev_warn(dev, "interrupt from stopped card\n"); + /* rmk - acknowledge the interrupts */ + ei_outb_p(interrupts, e8390_base + EN0_ISR); + interrupts = 0; + break; + } + if (interrupts & ENISR_OVER) + ei_rx_overrun(dev); + else if (interrupts & (ENISR_RX+ENISR_RX_ERR)) { + /* Got a good (?) packet. */ + ei_receive(dev); + } + /* Push the next to-transmit packet through. */ + if (interrupts & ENISR_TX) + ei_tx_intr(dev); + else if (interrupts & ENISR_TX_ERR) + ei_tx_err(dev); + + if (interrupts & ENISR_COUNTERS) { + dev->stats.rx_frame_errors += ei_inb_p(e8390_base + EN0_COUNTER0); + dev->stats.rx_crc_errors += ei_inb_p(e8390_base + EN0_COUNTER1); + dev->stats.rx_missed_errors += ei_inb_p(e8390_base + EN0_COUNTER2); + ei_outb_p(ENISR_COUNTERS, e8390_base + EN0_ISR); /* Ack intr. */ + } + + /* Ignore any RDC interrupts that make it back to here. */ + if (interrupts & ENISR_RDC) + ei_outb_p(ENISR_RDC, e8390_base + EN0_ISR); + + ei_outb_p(E8390_NODMA+E8390_PAGE0+E8390_START, e8390_base + E8390_CMD); + } + + if (interrupts && ei_debug) { + ei_outb_p(E8390_NODMA+E8390_PAGE0+E8390_START, e8390_base + E8390_CMD); + if (nr_serviced >= MAX_SERVICE) { + /* 0xFF is valid for a card removal */ + if (interrupts != 0xFF) + netdev_warn(dev, "Too much work at interrupt, status %#2.2x\n", + interrupts); + ei_outb_p(ENISR_ALL, e8390_base + EN0_ISR); /* Ack. most intrs. */ + } else { + netdev_warn(dev, "unknown interrupt %#2x\n", interrupts); + ei_outb_p(0xff, e8390_base + EN0_ISR); /* Ack. all intrs. */ + } + } + spin_unlock(&ei_local->page_lock); + return IRQ_RETVAL(nr_serviced > 0); +} + +#ifdef CONFIG_NET_POLL_CONTROLLER +static void __ei_poll(struct net_device *dev) +{ + disable_irq(dev->irq); + __ei_interrupt(dev->irq, dev); + enable_irq(dev->irq); +} +#endif + +/** + * ei_tx_err - handle transmitter error + * @dev: network device which threw the exception + * + * A transmitter error has happened. Most likely excess collisions (which + * is a fairly normal condition). If the error is one where the Tx will + * have been aborted, we try and send another one right away, instead of + * letting the failed packet sit and collect dust in the Tx buffer. This + * is a much better solution as it avoids kernel based Tx timeouts, and + * an unnecessary card reset. + * + * Called with lock held. + */ + +static void ei_tx_err(struct net_device *dev) +{ + unsigned long e8390_base = dev->base_addr; + /* ei_local is used on some platforms via the EI_SHIFT macro */ + struct ei_device *ei_local __maybe_unused = netdev_priv(dev); + unsigned char txsr = ei_inb_p(e8390_base+EN0_TSR); + unsigned char tx_was_aborted = txsr & (ENTSR_ABT+ENTSR_FU); + +#ifdef VERBOSE_ERROR_DUMP + netdev_dbg(dev, "transmitter error (%#2x):", txsr); + if (txsr & ENTSR_ABT) + pr_cont(" excess-collisions "); + if (txsr & ENTSR_ND) + pr_cont(" non-deferral "); + if (txsr & ENTSR_CRS) + pr_cont(" lost-carrier "); + if (txsr & ENTSR_FU) + pr_cont(" FIFO-underrun "); + if (txsr & ENTSR_CDH) + pr_cont(" lost-heartbeat "); + pr_cont("\n"); +#endif + + ei_outb_p(ENISR_TX_ERR, e8390_base + EN0_ISR); /* Ack intr. */ + + if (tx_was_aborted) + ei_tx_intr(dev); + else { + dev->stats.tx_errors++; + if (txsr & ENTSR_CRS) + dev->stats.tx_carrier_errors++; + if (txsr & ENTSR_CDH) + dev->stats.tx_heartbeat_errors++; + if (txsr & ENTSR_OWC) + dev->stats.tx_window_errors++; + } +} + +/** + * ei_tx_intr - transmit interrupt handler + * @dev: network device for which tx intr is handled + * + * We have finished a transmit: check for errors and then trigger the next + * packet to be sent. Called with lock held. + */ + +static void ei_tx_intr(struct net_device *dev) +{ + unsigned long e8390_base = dev->base_addr; + struct ei_device *ei_local = netdev_priv(dev); + int status = ei_inb(e8390_base + EN0_TSR); + + ei_outb_p(ENISR_TX, e8390_base + EN0_ISR); /* Ack intr. */ + + /* + * There are two Tx buffers, see which one finished, and trigger + * the send of another one if it exists. + */ + ei_local->txqueue--; + + if (ei_local->tx1 < 0) { + if (ei_local->lasttx != 1 && ei_local->lasttx != -1) + pr_err("%s: bogus last_tx_buffer %d, tx1=%d\n", + ei_local->name, ei_local->lasttx, ei_local->tx1); + ei_local->tx1 = 0; + if (ei_local->tx2 > 0) { + ei_local->txing = 1; + NS8390_trigger_send(dev, ei_local->tx2, ei_local->tx_start_page + 6); + dev->trans_start = jiffies; + ei_local->tx2 = -1, + ei_local->lasttx = 2; + } else + ei_local->lasttx = 20, ei_local->txing = 0; + } else if (ei_local->tx2 < 0) { + if (ei_local->lasttx != 2 && ei_local->lasttx != -2) + pr_err("%s: bogus last_tx_buffer %d, tx2=%d\n", + ei_local->name, ei_local->lasttx, ei_local->tx2); + ei_local->tx2 = 0; + if (ei_local->tx1 > 0) { + ei_local->txing = 1; + NS8390_trigger_send(dev, ei_local->tx1, ei_local->tx_start_page); + dev->trans_start = jiffies; + ei_local->tx1 = -1; + ei_local->lasttx = 1; + } else + ei_local->lasttx = 10, ei_local->txing = 0; + } /* else + netdev_warn(dev, "unexpected TX-done interrupt, lasttx=%d\n", + ei_local->lasttx); +*/ + + /* Minimize Tx latency: update the statistics after we restart TXing. */ + if (status & ENTSR_COL) + dev->stats.collisions++; + if (status & ENTSR_PTX) + dev->stats.tx_packets++; + else { + dev->stats.tx_errors++; + if (status & ENTSR_ABT) { + dev->stats.tx_aborted_errors++; + dev->stats.collisions += 16; + } + if (status & ENTSR_CRS) + dev->stats.tx_carrier_errors++; + if (status & ENTSR_FU) + dev->stats.tx_fifo_errors++; + if (status & ENTSR_CDH) + dev->stats.tx_heartbeat_errors++; + if (status & ENTSR_OWC) + dev->stats.tx_window_errors++; + } + netif_wake_queue(dev); +} + +/** + * ei_receive - receive some packets + * @dev: network device with which receive will be run + * + * We have a good packet(s), get it/them out of the buffers. + * Called with lock held. + */ + +static void ei_receive(struct net_device *dev) +{ + unsigned long e8390_base = dev->base_addr; + struct ei_device *ei_local = netdev_priv(dev); + unsigned char rxing_page, this_frame, next_frame; + unsigned short current_offset; + int rx_pkt_count = 0; + struct e8390_pkt_hdr rx_frame; + int num_rx_pages = ei_local->stop_page-ei_local->rx_start_page; + + while (++rx_pkt_count < 10) { + int pkt_len, pkt_stat; + + /* Get the rx page (incoming packet pointer). */ + ei_outb_p(E8390_NODMA+E8390_PAGE1, e8390_base + E8390_CMD); + rxing_page = ei_inb_p(e8390_base + EN1_CURPAG); + ei_outb_p(E8390_NODMA+E8390_PAGE0, e8390_base + E8390_CMD); + + /* Remove one frame from the ring. Boundary is always a page behind. */ + this_frame = ei_inb_p(e8390_base + EN0_BOUNDARY) + 1; + if (this_frame >= ei_local->stop_page) + this_frame = ei_local->rx_start_page; + + /* Someday we'll omit the previous, iff we never get this message. + (There is at least one clone claimed to have a problem.) + + Keep quiet if it looks like a card removal. One problem here + is that some clones crash in roughly the same way. + */ + if (ei_debug > 0 && + this_frame != ei_local->current_page && + (this_frame != 0x0 || rxing_page != 0xFF)) + netdev_err(dev, "mismatched read page pointers %2x vs %2x\n", + this_frame, ei_local->current_page); + + if (this_frame == rxing_page) /* Read all the frames? */ + break; /* Done for now */ + + current_offset = this_frame << 8; + ei_get_8390_hdr(dev, &rx_frame, this_frame); + + pkt_len = rx_frame.count - sizeof(struct e8390_pkt_hdr); + pkt_stat = rx_frame.status; + + next_frame = this_frame + 1 + ((pkt_len+4)>>8); + + /* Check for bogosity warned by 3c503 book: the status byte is never + written. This happened a lot during testing! This code should be + cleaned up someday. */ + if (rx_frame.next != next_frame && + rx_frame.next != next_frame + 1 && + rx_frame.next != next_frame - num_rx_pages && + rx_frame.next != next_frame + 1 - num_rx_pages) { + ei_local->current_page = rxing_page; + ei_outb(ei_local->current_page-1, e8390_base+EN0_BOUNDARY); + dev->stats.rx_errors++; + continue; + } + + if (pkt_len < 60 || pkt_len > 1518) { + if (ei_debug) + netdev_dbg(dev, "bogus packet size: %d, status=%#2x nxpg=%#2x\n", + rx_frame.count, rx_frame.status, + rx_frame.next); + dev->stats.rx_errors++; + dev->stats.rx_length_errors++; + } else if ((pkt_stat & 0x0F) == ENRSR_RXOK) { + struct sk_buff *skb; + + skb = dev_alloc_skb(pkt_len+2); + if (skb == NULL) { + if (ei_debug > 1) + netdev_dbg(dev, "Couldn't allocate a sk_buff of size %d\n", + pkt_len); + dev->stats.rx_dropped++; + break; + } else { + skb_reserve(skb, 2); /* IP headers on 16 byte boundaries */ + skb_put(skb, pkt_len); /* Make room */ + ei_block_input(dev, pkt_len, skb, current_offset + sizeof(rx_frame)); + skb->protocol = eth_type_trans(skb, dev); + if (!skb_defer_rx_timestamp(skb)) + netif_rx(skb); + dev->stats.rx_packets++; + dev->stats.rx_bytes += pkt_len; + if (pkt_stat & ENRSR_PHY) + dev->stats.multicast++; + } + } else { + if (ei_debug) + netdev_dbg(dev, "bogus packet: status=%#2x nxpg=%#2x size=%d\n", + rx_frame.status, rx_frame.next, + rx_frame.count); + dev->stats.rx_errors++; + /* NB: The NIC counts CRC, frame and missed errors. */ + if (pkt_stat & ENRSR_FO) + dev->stats.rx_fifo_errors++; + } + next_frame = rx_frame.next; + + /* This _should_ never happen: it's here for avoiding bad clones. */ + if (next_frame >= ei_local->stop_page) { + netdev_notice(dev, "next frame inconsistency, %#2x\n", + next_frame); + next_frame = ei_local->rx_start_page; + } + ei_local->current_page = next_frame; + ei_outb_p(next_frame-1, e8390_base+EN0_BOUNDARY); + } + + /* We used to also ack ENISR_OVER here, but that would sometimes mask + a real overrun, leaving the 8390 in a stopped state with rec'vr off. */ + ei_outb_p(ENISR_RX+ENISR_RX_ERR, e8390_base+EN0_ISR); +} + +/** + * ei_rx_overrun - handle receiver overrun + * @dev: network device which threw exception + * + * We have a receiver overrun: we have to kick the 8390 to get it started + * again. Problem is that you have to kick it exactly as NS prescribes in + * the updated datasheets, or "the NIC may act in an unpredictable manner." + * This includes causing "the NIC to defer indefinitely when it is stopped + * on a busy network." Ugh. + * Called with lock held. Don't call this with the interrupts off or your + * computer will hate you - it takes 10ms or so. + */ + +static void ei_rx_overrun(struct net_device *dev) +{ + unsigned long e8390_base = dev->base_addr; + unsigned char was_txing, must_resend = 0; + /* ei_local is used on some platforms via the EI_SHIFT macro */ + struct ei_device *ei_local __maybe_unused = netdev_priv(dev); + + /* + * Record whether a Tx was in progress and then issue the + * stop command. + */ + was_txing = ei_inb_p(e8390_base+E8390_CMD) & E8390_TRANS; + ei_outb_p(E8390_NODMA+E8390_PAGE0+E8390_STOP, e8390_base+E8390_CMD); + + if (ei_debug > 1) + netdev_dbg(dev, "Receiver overrun\n"); + dev->stats.rx_over_errors++; + + /* + * Wait a full Tx time (1.2ms) + some guard time, NS says 1.6ms total. + * Early datasheets said to poll the reset bit, but now they say that + * it "is not a reliable indicator and subsequently should be ignored." + * We wait at least 10ms. + */ + + mdelay(10); + + /* + * Reset RBCR[01] back to zero as per magic incantation. + */ + ei_outb_p(0x00, e8390_base+EN0_RCNTLO); + ei_outb_p(0x00, e8390_base+EN0_RCNTHI); + + /* + * See if any Tx was interrupted or not. According to NS, this + * step is vital, and skipping it will cause no end of havoc. + */ + + if (was_txing) { + unsigned char tx_completed = ei_inb_p(e8390_base+EN0_ISR) & (ENISR_TX+ENISR_TX_ERR); + if (!tx_completed) + must_resend = 1; + } + + /* + * Have to enter loopback mode and then restart the NIC before + * you are allowed to slurp packets up off the ring. + */ + ei_outb_p(E8390_TXOFF, e8390_base + EN0_TXCR); + ei_outb_p(E8390_NODMA + E8390_PAGE0 + E8390_START, e8390_base + E8390_CMD); + + /* + * Clear the Rx ring of all the debris, and ack the interrupt. + */ + ei_receive(dev); + ei_outb_p(ENISR_OVER, e8390_base+EN0_ISR); + + /* + * Leave loopback mode, and resend any packet that got stopped. + */ + ei_outb_p(E8390_TXCONFIG, e8390_base + EN0_TXCR); + if (must_resend) + ei_outb_p(E8390_NODMA + E8390_PAGE0 + E8390_START + E8390_TRANS, e8390_base + E8390_CMD); +} + +/* + * Collect the stats. This is called unlocked and from several contexts. + */ + +static struct net_device_stats *__ei_get_stats(struct net_device *dev) +{ + unsigned long ioaddr = dev->base_addr; + struct ei_device *ei_local = netdev_priv(dev); + unsigned long flags; + + /* If the card is stopped, just return the present stats. */ + if (!netif_running(dev)) + return &dev->stats; + + spin_lock_irqsave(&ei_local->page_lock, flags); + /* Read the counter registers, assuming we are in page 0. */ + dev->stats.rx_frame_errors += ei_inb_p(ioaddr + EN0_COUNTER0); + dev->stats.rx_crc_errors += ei_inb_p(ioaddr + EN0_COUNTER1); + dev->stats.rx_missed_errors += ei_inb_p(ioaddr + EN0_COUNTER2); + spin_unlock_irqrestore(&ei_local->page_lock, flags); + + return &dev->stats; +} + +/* + * Form the 64 bit 8390 multicast table from the linked list of addresses + * associated with this dev structure. + */ + +static inline void make_mc_bits(u8 *bits, struct net_device *dev) +{ + struct netdev_hw_addr *ha; + + netdev_for_each_mc_addr(ha, dev) { + u32 crc = ether_crc(ETH_ALEN, ha->addr); + /* + * The 8390 uses the 6 most significant bits of the + * CRC to index the multicast table. + */ + bits[crc>>29] |= (1<<((crc>>26)&7)); + } +} + +/** + * do_set_multicast_list - set/clear multicast filter + * @dev: net device for which multicast filter is adjusted + * + * Set or clear the multicast filter for this adaptor. May be called + * from a BH in 2.1.x. Must be called with lock held. + */ + +static void do_set_multicast_list(struct net_device *dev) +{ + unsigned long e8390_base = dev->base_addr; + int i; + struct ei_device *ei_local = netdev_priv(dev); + + if (!(dev->flags&(IFF_PROMISC|IFF_ALLMULTI))) { + memset(ei_local->mcfilter, 0, 8); + if (!netdev_mc_empty(dev)) + make_mc_bits(ei_local->mcfilter, dev); + } else + memset(ei_local->mcfilter, 0xFF, 8); /* mcast set to accept-all */ + + /* + * DP8390 manuals don't specify any magic sequence for altering + * the multicast regs on an already running card. To be safe, we + * ensure multicast mode is off prior to loading up the new hash + * table. If this proves to be not enough, we can always resort + * to stopping the NIC, loading the table and then restarting. + * + * Bug Alert! The MC regs on the SMC 83C690 (SMC Elite and SMC + * Elite16) appear to be write-only. The NS 8390 data sheet lists + * them as r/w so this is a bug. The SMC 83C790 (SMC Ultra and + * Ultra32 EISA) appears to have this bug fixed. + */ + + if (netif_running(dev)) + ei_outb_p(E8390_RXCONFIG, e8390_base + EN0_RXCR); + ei_outb_p(E8390_NODMA + E8390_PAGE1, e8390_base + E8390_CMD); + for (i = 0; i < 8; i++) { + ei_outb_p(ei_local->mcfilter[i], e8390_base + EN1_MULT_SHIFT(i)); +#ifndef BUG_83C690 + if (ei_inb_p(e8390_base + EN1_MULT_SHIFT(i)) != ei_local->mcfilter[i]) + netdev_err(dev, "Multicast filter read/write mismap %d\n", + i); +#endif + } + ei_outb_p(E8390_NODMA + E8390_PAGE0, e8390_base + E8390_CMD); + + if (dev->flags&IFF_PROMISC) + ei_outb_p(E8390_RXCONFIG | 0x18, e8390_base + EN0_RXCR); + else if (dev->flags & IFF_ALLMULTI || !netdev_mc_empty(dev)) + ei_outb_p(E8390_RXCONFIG | 0x08, e8390_base + EN0_RXCR); + else + ei_outb_p(E8390_RXCONFIG, e8390_base + EN0_RXCR); +} + +/* + * Called without lock held. This is invoked from user context and may + * be parallel to just about everything else. Its also fairly quick and + * not called too often. Must protect against both bh and irq users + */ + +static void __ei_set_multicast_list(struct net_device *dev) +{ + unsigned long flags; + struct ei_device *ei_local = netdev_priv(dev); + + spin_lock_irqsave(&ei_local->page_lock, flags); + do_set_multicast_list(dev); + spin_unlock_irqrestore(&ei_local->page_lock, flags); +} + +/** + * ethdev_setup - init rest of 8390 device struct + * @dev: network device structure to init + * + * Initialize the rest of the 8390 device structure. Do NOT __init + * this, as it is used by 8390 based modular drivers too. + */ + +static void ethdev_setup(struct net_device *dev) +{ + struct ei_device *ei_local = netdev_priv(dev); + if (ei_debug > 1) + printk(version); + + ether_setup(dev); + + spin_lock_init(&ei_local->page_lock); +} + +/** + * alloc_ei_netdev - alloc_etherdev counterpart for 8390 + * @size: extra bytes to allocate + * + * Allocate 8390-specific net_device. + */ +static struct net_device *____alloc_ei_netdev(int size) +{ + return alloc_netdev(sizeof(struct ei_device) + size, "eth%d", + ethdev_setup); +} + + + + +/* This page of functions should be 8390 generic */ +/* Follow National Semi's recommendations for initializing the "NIC". */ + +/** + * NS8390_init - initialize 8390 hardware + * @dev: network device to initialize + * @startp: boolean. non-zero value to initiate chip processing + * + * Must be called with lock held. + */ + +static void __NS8390_init(struct net_device *dev, int startp) +{ + unsigned long e8390_base = dev->base_addr; + struct ei_device *ei_local = netdev_priv(dev); + int i; + int endcfg = ei_local->word16 + ? (0x48 | ENDCFG_WTS | (ei_local->bigendian ? ENDCFG_BOS : 0)) + : 0x48; + + if (sizeof(struct e8390_pkt_hdr) != 4) + panic("8390.c: header struct mispacked\n"); + /* Follow National Semi's recommendations for initing the DP83902. */ + ei_outb_p(E8390_NODMA+E8390_PAGE0+E8390_STOP, e8390_base+E8390_CMD); /* 0x21 */ + ei_outb_p(endcfg, e8390_base + EN0_DCFG); /* 0x48 or 0x49 */ + /* Clear the remote byte count registers. */ + ei_outb_p(0x00, e8390_base + EN0_RCNTLO); + ei_outb_p(0x00, e8390_base + EN0_RCNTHI); + /* Set to monitor and loopback mode -- this is vital!. */ + ei_outb_p(E8390_RXOFF, e8390_base + EN0_RXCR); /* 0x20 */ + ei_outb_p(E8390_TXOFF, e8390_base + EN0_TXCR); /* 0x02 */ + /* Set the transmit page and receive ring. */ + ei_outb_p(ei_local->tx_start_page, e8390_base + EN0_TPSR); + ei_local->tx1 = ei_local->tx2 = 0; + ei_outb_p(ei_local->rx_start_page, e8390_base + EN0_STARTPG); + ei_outb_p(ei_local->stop_page-1, e8390_base + EN0_BOUNDARY); /* 3c503 says 0x3f,NS0x26*/ + ei_local->current_page = ei_local->rx_start_page; /* assert boundary+1 */ + ei_outb_p(ei_local->stop_page, e8390_base + EN0_STOPPG); + /* Clear the pending interrupts and mask. */ + ei_outb_p(0xFF, e8390_base + EN0_ISR); + ei_outb_p(0x00, e8390_base + EN0_IMR); + + /* Copy the station address into the DS8390 registers. */ + + ei_outb_p(E8390_NODMA + E8390_PAGE1 + E8390_STOP, e8390_base+E8390_CMD); /* 0x61 */ + for (i = 0; i < 6; i++) { + ei_outb_p(dev->dev_addr[i], e8390_base + EN1_PHYS_SHIFT(i)); + if (ei_debug > 1 && + ei_inb_p(e8390_base + EN1_PHYS_SHIFT(i)) != dev->dev_addr[i]) + netdev_err(dev, "Hw. address read/write mismap %d\n", i); + } + + ei_outb_p(ei_local->rx_start_page, e8390_base + EN1_CURPAG); + ei_outb_p(E8390_NODMA+E8390_PAGE0+E8390_STOP, e8390_base+E8390_CMD); + + ei_local->tx1 = ei_local->tx2 = 0; + ei_local->txing = 0; + + if (startp) { + ei_outb_p(0xff, e8390_base + EN0_ISR); + ei_outb_p(ENISR_ALL, e8390_base + EN0_IMR); + ei_outb_p(E8390_NODMA+E8390_PAGE0+E8390_START, e8390_base+E8390_CMD); + ei_outb_p(E8390_TXCONFIG, e8390_base + EN0_TXCR); /* xmit on. */ + /* 3c503 TechMan says rxconfig only after the NIC is started. */ + ei_outb_p(E8390_RXCONFIG, e8390_base + EN0_RXCR); /* rx on, */ + do_set_multicast_list(dev); /* (re)load the mcast table */ + } +} + +/* Trigger a transmit start, assuming the length is valid. + Always called with the page lock held */ + +static void NS8390_trigger_send(struct net_device *dev, unsigned int length, + int start_page) +{ + unsigned long e8390_base = dev->base_addr; + struct ei_device *ei_local __attribute((unused)) = netdev_priv(dev); + + ei_outb_p(E8390_NODMA+E8390_PAGE0, e8390_base+E8390_CMD); + + if (ei_inb_p(e8390_base + E8390_CMD) & E8390_TRANS) { + netdev_warn(dev, "trigger_send() called with the transmitter busy\n"); + return; + } + ei_outb_p(length & 0xff, e8390_base + EN0_TCNTLO); + ei_outb_p(length >> 8, e8390_base + EN0_TCNTHI); + ei_outb_p(start_page, e8390_base + EN0_TPSR); + ei_outb_p(E8390_NODMA+E8390_TRANS+E8390_START, e8390_base+E8390_CMD); +} diff --git a/drivers/net/ethernet/8390/lne390.c b/drivers/net/ethernet/8390/lne390.c new file mode 100644 index 000000000000..f9888d20177b --- /dev/null +++ b/drivers/net/ethernet/8390/lne390.c @@ -0,0 +1,434 @@ +/* + lne390.c + + Linux driver for Mylex LNE390 EISA Network Adapter + + Copyright (C) 1996-1998, Paul Gortmaker. + + This software may be used and distributed according to the terms + of the GNU General Public License, incorporated herein by reference. + + Information and Code Sources: + + 1) Based upon framework of es3210 driver. + 2) The existing myriad of other Linux 8390 drivers by Donald Becker. + 3) Russ Nelson's asm packet driver provided additional info. + 4) Info for getting IRQ and sh-mem gleaned from the EISA cfg files. + + The LNE390 is an EISA shared memory NS8390 implementation. Note + that all memory copies to/from the board must be 32bit transfers. + There are two versions of the card: the lne390a and the lne390b. + Going by the EISA cfg files, the "a" has jumpers to select between + BNC/AUI, but the "b" also has RJ-45 and selection is via the SCU. + The shared memory address selection is also slightly different. + Note that shared memory address > 1MB are supported with this driver. + + You can try <http://www.mylex.com> if you want more info, as I've + never even seen one of these cards. :) + + Arnaldo Carvalho de Melo <acme@conectiva.com.br> - 2000/09/01 + - get rid of check_region + - no need to check if dev == NULL in lne390_probe1 +*/ + +static const char *version = + "lne390.c: Driver revision v0.99.1, 01/09/2000\n"; + +#include <linux/module.h> +#include <linux/eisa.h> +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/string.h> +#include <linux/delay.h> +#include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/netdevice.h> +#include <linux/etherdevice.h> + +#include <asm/io.h> +#include <asm/system.h> + +#include "8390.h" + +#define DRV_NAME "lne390" + +static int lne390_probe1(struct net_device *dev, int ioaddr); + +static void lne390_reset_8390(struct net_device *dev); + +static void lne390_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page); +static void lne390_block_input(struct net_device *dev, int count, struct sk_buff *skb, int ring_offset); +static void lne390_block_output(struct net_device *dev, int count, const unsigned char *buf, const int start_page); + +#define LNE390_START_PG 0x00 /* First page of TX buffer */ +#define LNE390_STOP_PG 0x80 /* Last page +1 of RX ring */ + +#define LNE390_ID_PORT 0xc80 /* Same for all EISA cards */ +#define LNE390_IO_EXTENT 0x20 +#define LNE390_SA_PROM 0x16 /* Start of e'net addr. */ +#define LNE390_RESET_PORT 0xc84 /* From the pkt driver source */ +#define LNE390_NIC_OFFSET 0x00 /* Hello, the 8390 is *here* */ + +#define LNE390_ADDR0 0x00 /* 3 byte vendor prefix */ +#define LNE390_ADDR1 0x80 +#define LNE390_ADDR2 0xe5 + +#define LNE390_ID0 0x10009835 /* 0x3598 = 01101 01100 11000 = mlx */ +#define LNE390_ID1 0x11009835 /* above is the 390A, this is 390B */ + +#define LNE390_CFG1 0xc84 /* NB: 0xc84 is also "reset" port. */ +#define LNE390_CFG2 0xc90 + +/* + * You can OR any of the following bits together and assign it + * to LNE390_DEBUG to get verbose driver info during operation. + * Currently only the probe one is implemented. + */ + +#define LNE390_D_PROBE 0x01 +#define LNE390_D_RX_PKT 0x02 +#define LNE390_D_TX_PKT 0x04 +#define LNE390_D_IRQ 0x08 + +#define LNE390_DEBUG 0 + +static unsigned char irq_map[] __initdata = {15, 12, 11, 10, 9, 7, 5, 3}; +static unsigned int shmem_mapA[] __initdata = {0xff, 0xfe, 0xfd, 0xfff, 0xffe, 0xffc, 0x0d, 0x0}; +static unsigned int shmem_mapB[] __initdata = {0xff, 0xfe, 0x0e, 0xfff, 0xffe, 0xffc, 0x0d, 0x0}; + +/* + * Probe for the card. The best way is to read the EISA ID if it + * is known. Then we can check the prefix of the station address + * PROM for a match against the value assigned to Mylex. + */ + +static int __init do_lne390_probe(struct net_device *dev) +{ + unsigned short ioaddr = dev->base_addr; + int irq = dev->irq; + int mem_start = dev->mem_start; + int ret; + + if (ioaddr > 0x1ff) { /* Check a single specified location. */ + if (!request_region(ioaddr, LNE390_IO_EXTENT, DRV_NAME)) + return -EBUSY; + ret = lne390_probe1(dev, ioaddr); + if (ret) + release_region(ioaddr, LNE390_IO_EXTENT); + return ret; + } + else if (ioaddr > 0) /* Don't probe at all. */ + return -ENXIO; + + if (!EISA_bus) { +#if LNE390_DEBUG & LNE390_D_PROBE + printk("lne390-debug: Not an EISA bus. Not probing high ports.\n"); +#endif + return -ENXIO; + } + + /* EISA spec allows for up to 16 slots, but 8 is typical. */ + for (ioaddr = 0x1000; ioaddr < 0x9000; ioaddr += 0x1000) { + if (!request_region(ioaddr, LNE390_IO_EXTENT, DRV_NAME)) + continue; + if (lne390_probe1(dev, ioaddr) == 0) + return 0; + release_region(ioaddr, LNE390_IO_EXTENT); + dev->irq = irq; + dev->mem_start = mem_start; + } + + return -ENODEV; +} + +#ifndef MODULE +struct net_device * __init lne390_probe(int unit) +{ + struct net_device *dev = alloc_ei_netdev(); + int err; + + if (!dev) + return ERR_PTR(-ENOMEM); + + sprintf(dev->name, "eth%d", unit); + netdev_boot_setup_check(dev); + + err = do_lne390_probe(dev); + if (err) + goto out; + return dev; +out: + free_netdev(dev); + return ERR_PTR(err); +} +#endif + +static int __init lne390_probe1(struct net_device *dev, int ioaddr) +{ + int i, revision, ret; + unsigned long eisa_id; + + if (inb_p(ioaddr + LNE390_ID_PORT) == 0xff) return -ENODEV; + +#if LNE390_DEBUG & LNE390_D_PROBE + printk("lne390-debug: probe at %#x, ID %#8x\n", ioaddr, inl(ioaddr + LNE390_ID_PORT)); + printk("lne390-debug: config regs: %#x %#x\n", + inb(ioaddr + LNE390_CFG1), inb(ioaddr + LNE390_CFG2)); +#endif + + +/* Check the EISA ID of the card. */ + eisa_id = inl(ioaddr + LNE390_ID_PORT); + if ((eisa_id != LNE390_ID0) && (eisa_id != LNE390_ID1)) { + return -ENODEV; + } + + revision = (eisa_id >> 24) & 0x01; /* 0 = rev A, 1 rev B */ + +#if 0 +/* Check the Mylex vendor ID as well. Not really required. */ + if (inb(ioaddr + LNE390_SA_PROM + 0) != LNE390_ADDR0 + || inb(ioaddr + LNE390_SA_PROM + 1) != LNE390_ADDR1 + || inb(ioaddr + LNE390_SA_PROM + 2) != LNE390_ADDR2 ) { + printk("lne390.c: card not found"); + for(i = 0; i < ETHER_ADDR_LEN; i++) + printk(" %02x", inb(ioaddr + LNE390_SA_PROM + i)); + printk(" (invalid prefix).\n"); + return -ENODEV; + } +#endif + + for(i = 0; i < ETHER_ADDR_LEN; i++) + dev->dev_addr[i] = inb(ioaddr + LNE390_SA_PROM + i); + printk("lne390.c: LNE390%X in EISA slot %d, address %pM.\n", + 0xa+revision, ioaddr/0x1000, dev->dev_addr); + + printk("lne390.c: "); + + /* Snarf the interrupt now. CFG file has them all listed as `edge' with share=NO */ + if (dev->irq == 0) { + unsigned char irq_reg = inb(ioaddr + LNE390_CFG2) >> 3; + dev->irq = irq_map[irq_reg & 0x07]; + printk("using"); + } else { + /* This is useless unless we reprogram the card here too */ + if (dev->irq == 2) dev->irq = 9; /* Doh! */ + printk("assigning"); + } + printk(" IRQ %d,", dev->irq); + + if ((ret = request_irq(dev->irq, ei_interrupt, 0, DRV_NAME, dev))) { + printk (" unable to get IRQ %d.\n", dev->irq); + return ret; + } + + if (dev->mem_start == 0) { + unsigned char mem_reg = inb(ioaddr + LNE390_CFG2) & 0x07; + + if (revision) /* LNE390B */ + dev->mem_start = shmem_mapB[mem_reg] * 0x10000; + else /* LNE390A */ + dev->mem_start = shmem_mapA[mem_reg] * 0x10000; + printk(" using "); + } else { + /* Should check for value in shmem_map and reprogram the card to use it */ + dev->mem_start &= 0xfff0000; + printk(" assigning "); + } + + printk("%dkB memory at physical address %#lx\n", + LNE390_STOP_PG/4, dev->mem_start); + + /* + BEWARE!! Some dain-bramaged EISA SCUs will allow you to put + the card mem within the region covered by `normal' RAM !!! + + ioremap() will fail in that case. + */ + ei_status.mem = ioremap(dev->mem_start, LNE390_STOP_PG*0x100); + if (!ei_status.mem) { + printk(KERN_ERR "lne390.c: Unable to remap card memory above 1MB !!\n"); + printk(KERN_ERR "lne390.c: Try using EISA SCU to set memory below 1MB.\n"); + printk(KERN_ERR "lne390.c: Driver NOT installed.\n"); + ret = -EAGAIN; + goto cleanup; + } + printk("lne390.c: remapped %dkB card memory to virtual address %p\n", + LNE390_STOP_PG/4, ei_status.mem); + + dev->mem_start = (unsigned long)ei_status.mem; + dev->mem_end = dev->mem_start + (LNE390_STOP_PG - LNE390_START_PG)*256; + + /* The 8390 offset is zero for the LNE390 */ + dev->base_addr = ioaddr; + + ei_status.name = "LNE390"; + ei_status.tx_start_page = LNE390_START_PG; + ei_status.rx_start_page = LNE390_START_PG + TX_PAGES; + ei_status.stop_page = LNE390_STOP_PG; + ei_status.word16 = 1; + + if (ei_debug > 0) + printk(version); + + ei_status.reset_8390 = &lne390_reset_8390; + ei_status.block_input = &lne390_block_input; + ei_status.block_output = &lne390_block_output; + ei_status.get_8390_hdr = &lne390_get_8390_hdr; + + dev->netdev_ops = &ei_netdev_ops; + NS8390_init(dev, 0); + + ret = register_netdev(dev); + if (ret) + goto unmap; + return 0; +unmap: + if (ei_status.reg0) + iounmap(ei_status.mem); +cleanup: + free_irq(dev->irq, dev); + return ret; +} + +/* + * Reset as per the packet driver method. Judging by the EISA cfg + * file, this just toggles the "Board Enable" bits (bit 2 and 0). + */ + +static void lne390_reset_8390(struct net_device *dev) +{ + unsigned short ioaddr = dev->base_addr; + + outb(0x04, ioaddr + LNE390_RESET_PORT); + if (ei_debug > 1) printk("%s: resetting the LNE390...", dev->name); + + mdelay(2); + + ei_status.txing = 0; + outb(0x01, ioaddr + LNE390_RESET_PORT); + if (ei_debug > 1) printk("reset done\n"); +} + +/* + * Note: In the following three functions is the implicit assumption + * that the associated memcpy will only use "rep; movsl" as long as + * we keep the counts as some multiple of doublewords. This is a + * requirement of the hardware, and also prevents us from using + * eth_io_copy_and_sum() since we can't guarantee it will limit + * itself to doubleword access. + */ + +/* + * Grab the 8390 specific header. Similar to the block_input routine, but + * we don't need to be concerned with ring wrap as the header will be at + * the start of a page, so we optimize accordingly. (A single doubleword.) + */ + +static void +lne390_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page) +{ + void __iomem *hdr_start = ei_status.mem + ((ring_page - LNE390_START_PG)<<8); + memcpy_fromio(hdr, hdr_start, sizeof(struct e8390_pkt_hdr)); + hdr->count = (hdr->count + 3) & ~3; /* Round up allocation. */ +} + +/* + * Block input and output are easy on shared memory ethercards, the only + * complication is when the ring buffer wraps. The count will already + * be rounded up to a doubleword value via lne390_get_8390_hdr() above. + */ + +static void lne390_block_input(struct net_device *dev, int count, struct sk_buff *skb, + int ring_offset) +{ + void __iomem *xfer_start = ei_status.mem + ring_offset - (LNE390_START_PG<<8); + + if (ring_offset + count > (LNE390_STOP_PG<<8)) { + /* Packet wraps over end of ring buffer. */ + int semi_count = (LNE390_STOP_PG<<8) - ring_offset; + memcpy_fromio(skb->data, xfer_start, semi_count); + count -= semi_count; + memcpy_fromio(skb->data + semi_count, + ei_status.mem + (TX_PAGES<<8), count); + } else { + /* Packet is in one chunk. */ + memcpy_fromio(skb->data, xfer_start, count); + } +} + +static void lne390_block_output(struct net_device *dev, int count, + const unsigned char *buf, int start_page) +{ + void __iomem *shmem = ei_status.mem + ((start_page - LNE390_START_PG)<<8); + + count = (count + 3) & ~3; /* Round up to doubleword */ + memcpy_toio(shmem, buf, count); +} + + +#ifdef MODULE +#define MAX_LNE_CARDS 4 /* Max number of LNE390 cards per module */ +static struct net_device *dev_lne[MAX_LNE_CARDS]; +static int io[MAX_LNE_CARDS]; +static int irq[MAX_LNE_CARDS]; +static int mem[MAX_LNE_CARDS]; + +module_param_array(io, int, NULL, 0); +module_param_array(irq, int, NULL, 0); +module_param_array(mem, int, NULL, 0); +MODULE_PARM_DESC(io, "I/O base address(es)"); +MODULE_PARM_DESC(irq, "IRQ number(s)"); +MODULE_PARM_DESC(mem, "memory base address(es)"); +MODULE_DESCRIPTION("Mylex LNE390A/B EISA Ethernet driver"); +MODULE_LICENSE("GPL"); + +int __init init_module(void) +{ + struct net_device *dev; + int this_dev, found = 0; + + for (this_dev = 0; this_dev < MAX_LNE_CARDS; this_dev++) { + if (io[this_dev] == 0 && this_dev != 0) + break; + dev = alloc_ei_netdev(); + if (!dev) + break; + dev->irq = irq[this_dev]; + dev->base_addr = io[this_dev]; + dev->mem_start = mem[this_dev]; + if (do_lne390_probe(dev) == 0) { + dev_lne[found++] = dev; + continue; + } + free_netdev(dev); + printk(KERN_WARNING "lne390.c: No LNE390 card found (i/o = 0x%x).\n", io[this_dev]); + break; + } + if (found) + return 0; + return -ENXIO; +} + +static void cleanup_card(struct net_device *dev) +{ + free_irq(dev->irq, dev); + release_region(dev->base_addr, LNE390_IO_EXTENT); + iounmap(ei_status.mem); +} + +void __exit cleanup_module(void) +{ + int this_dev; + + for (this_dev = 0; this_dev < MAX_LNE_CARDS; this_dev++) { + struct net_device *dev = dev_lne[this_dev]; + if (dev) { + unregister_netdev(dev); + cleanup_card(dev); + free_netdev(dev); + } + } +} +#endif /* MODULE */ + diff --git a/drivers/net/ethernet/8390/mac8390.c b/drivers/net/ethernet/8390/mac8390.c new file mode 100644 index 000000000000..f84f5e6ededb --- /dev/null +++ b/drivers/net/ethernet/8390/mac8390.c @@ -0,0 +1,874 @@ +/* mac8390.c: New driver for 8390-based Nubus (or Nubus-alike) + Ethernet cards on Linux */ +/* Based on the former daynaport.c driver, by Alan Cox. Some code + taken from or inspired by skeleton.c by Donald Becker, acenic.c by + Jes Sorensen, and ne2k-pci.c by Donald Becker and Paul Gortmaker. + + This software may be used and distributed according to the terms of + the GNU Public License, incorporated herein by reference. */ + +/* 2000-02-28: support added for Dayna and Kinetics cards by + A.G.deWijn@phys.uu.nl */ +/* 2000-04-04: support added for Dayna2 by bart@etpmod.phys.tue.nl */ +/* 2001-04-18: support for DaynaPort E/LC-M by rayk@knightsmanor.org */ +/* 2001-05-15: support for Cabletron ported from old daynaport driver + * and fixed access to Sonic Sys card which masquerades as a Farallon + * by rayk@knightsmanor.org */ +/* 2002-12-30: Try to support more cards, some clues from NetBSD driver */ +/* 2003-12-26: Make sure Asante cards always work. */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/fcntl.h> +#include <linux/interrupt.h> +#include <linux/ptrace.h> +#include <linux/ioport.h> +#include <linux/nubus.h> +#include <linux/in.h> +#include <linux/string.h> +#include <linux/errno.h> +#include <linux/init.h> +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/skbuff.h> +#include <linux/bitops.h> +#include <linux/io.h> + +#include <asm/system.h> +#include <asm/dma.h> +#include <asm/hwtest.h> +#include <asm/macints.h> + +static char version[] = + "v0.4 2001-05-15 David Huggins-Daines <dhd@debian.org> and others\n"; + +#define EI_SHIFT(x) (ei_local->reg_offset[x]) +#define ei_inb(port) in_8(port) +#define ei_outb(val, port) out_8(port, val) +#define ei_inb_p(port) in_8(port) +#define ei_outb_p(val, port) out_8(port, val) + +#include "lib8390.c" + +#define WD_START_PG 0x00 /* First page of TX buffer */ +#define CABLETRON_RX_START_PG 0x00 /* First page of RX buffer */ +#define CABLETRON_RX_STOP_PG 0x30 /* Last page +1 of RX ring */ +#define CABLETRON_TX_START_PG CABLETRON_RX_STOP_PG + /* First page of TX buffer */ + +/* + * Unfortunately it seems we have to hardcode these for the moment + * Shouldn't the card know about this? + * Does anyone know where to read it off the card? + * Do we trust the data provided by the card? + */ + +#define DAYNA_8390_BASE 0x80000 +#define DAYNA_8390_MEM 0x00000 + +#define CABLETRON_8390_BASE 0x90000 +#define CABLETRON_8390_MEM 0x00000 + +#define INTERLAN_8390_BASE 0xE0000 +#define INTERLAN_8390_MEM 0xD0000 + +enum mac8390_type { + MAC8390_NONE = -1, + MAC8390_APPLE, + MAC8390_ASANTE, + MAC8390_FARALLON, + MAC8390_CABLETRON, + MAC8390_DAYNA, + MAC8390_INTERLAN, + MAC8390_KINETICS, +}; + +static const char *cardname[] = { + "apple", + "asante", + "farallon", + "cabletron", + "dayna", + "interlan", + "kinetics", +}; + +static const int word16[] = { + 1, /* apple */ + 1, /* asante */ + 1, /* farallon */ + 1, /* cabletron */ + 0, /* dayna */ + 1, /* interlan */ + 0, /* kinetics */ +}; + +/* on which cards do we use NuBus resources? */ +static const int useresources[] = { + 1, /* apple */ + 1, /* asante */ + 1, /* farallon */ + 0, /* cabletron */ + 0, /* dayna */ + 0, /* interlan */ + 0, /* kinetics */ +}; + +enum mac8390_access { + ACCESS_UNKNOWN = 0, + ACCESS_32, + ACCESS_16, +}; + +extern int mac8390_memtest(struct net_device *dev); +static int mac8390_initdev(struct net_device *dev, struct nubus_dev *ndev, + enum mac8390_type type); + +static int mac8390_open(struct net_device *dev); +static int mac8390_close(struct net_device *dev); +static void mac8390_no_reset(struct net_device *dev); +static void interlan_reset(struct net_device *dev); + +/* Sane (32-bit chunk memory read/write) - Some Farallon and Apple do this*/ +static void sane_get_8390_hdr(struct net_device *dev, + struct e8390_pkt_hdr *hdr, int ring_page); +static void sane_block_input(struct net_device *dev, int count, + struct sk_buff *skb, int ring_offset); +static void sane_block_output(struct net_device *dev, int count, + const unsigned char *buf, const int start_page); + +/* dayna_memcpy to and from card */ +static void dayna_memcpy_fromcard(struct net_device *dev, void *to, + int from, int count); +static void dayna_memcpy_tocard(struct net_device *dev, int to, + const void *from, int count); + +/* Dayna - Dayna/Kinetics use this */ +static void dayna_get_8390_hdr(struct net_device *dev, + struct e8390_pkt_hdr *hdr, int ring_page); +static void dayna_block_input(struct net_device *dev, int count, + struct sk_buff *skb, int ring_offset); +static void dayna_block_output(struct net_device *dev, int count, + const unsigned char *buf, int start_page); + +#define memcpy_fromio(a, b, c) memcpy((a), (void *)(b), (c)) +#define memcpy_toio(a, b, c) memcpy((void *)(a), (b), (c)) + +#define memcmp_withio(a, b, c) memcmp((a), (void *)(b), (c)) + +/* Slow Sane (16-bit chunk memory read/write) Cabletron uses this */ +static void slow_sane_get_8390_hdr(struct net_device *dev, + struct e8390_pkt_hdr *hdr, int ring_page); +static void slow_sane_block_input(struct net_device *dev, int count, + struct sk_buff *skb, int ring_offset); +static void slow_sane_block_output(struct net_device *dev, int count, + const unsigned char *buf, int start_page); +static void word_memcpy_tocard(unsigned long tp, const void *fp, int count); +static void word_memcpy_fromcard(void *tp, unsigned long fp, int count); + +static enum mac8390_type __init mac8390_ident(struct nubus_dev *dev) +{ + switch (dev->dr_sw) { + case NUBUS_DRSW_3COM: + switch (dev->dr_hw) { + case NUBUS_DRHW_APPLE_SONIC_NB: + case NUBUS_DRHW_APPLE_SONIC_LC: + case NUBUS_DRHW_SONNET: + return MAC8390_NONE; + break; + default: + return MAC8390_APPLE; + break; + } + break; + + case NUBUS_DRSW_APPLE: + switch (dev->dr_hw) { + case NUBUS_DRHW_ASANTE_LC: + return MAC8390_NONE; + break; + case NUBUS_DRHW_CABLETRON: + return MAC8390_CABLETRON; + break; + default: + return MAC8390_APPLE; + break; + } + break; + + case NUBUS_DRSW_ASANTE: + return MAC8390_ASANTE; + break; + + case NUBUS_DRSW_TECHWORKS: + case NUBUS_DRSW_DAYNA2: + case NUBUS_DRSW_DAYNA_LC: + if (dev->dr_hw == NUBUS_DRHW_CABLETRON) + return MAC8390_CABLETRON; + else + return MAC8390_APPLE; + break; + + case NUBUS_DRSW_FARALLON: + return MAC8390_FARALLON; + break; + + case NUBUS_DRSW_KINETICS: + switch (dev->dr_hw) { + case NUBUS_DRHW_INTERLAN: + return MAC8390_INTERLAN; + break; + default: + return MAC8390_KINETICS; + break; + } + break; + + case NUBUS_DRSW_DAYNA: + /* + * These correspond to Dayna Sonic cards + * which use the macsonic driver + */ + if (dev->dr_hw == NUBUS_DRHW_SMC9194 || + dev->dr_hw == NUBUS_DRHW_INTERLAN) + return MAC8390_NONE; + else + return MAC8390_DAYNA; + break; + } + return MAC8390_NONE; +} + +static enum mac8390_access __init mac8390_testio(volatile unsigned long membase) +{ + unsigned long outdata = 0xA5A0B5B0; + unsigned long indata = 0x00000000; + /* Try writing 32 bits */ + memcpy_toio(membase, &outdata, 4); + /* Now compare them */ + if (memcmp_withio(&outdata, membase, 4) == 0) + return ACCESS_32; + /* Write 16 bit output */ + word_memcpy_tocard(membase, &outdata, 4); + /* Now read it back */ + word_memcpy_fromcard(&indata, membase, 4); + if (outdata == indata) + return ACCESS_16; + return ACCESS_UNKNOWN; +} + +static int __init mac8390_memsize(unsigned long membase) +{ + unsigned long flags; + int i, j; + + local_irq_save(flags); + /* Check up to 32K in 4K increments */ + for (i = 0; i < 8; i++) { + volatile unsigned short *m = (unsigned short *)(membase + (i * 0x1000)); + + /* Unwriteable - we have a fully decoded card and the + RAM end located */ + if (hwreg_present(m) == 0) + break; + + /* write a distinctive byte */ + *m = 0xA5A0 | i; + /* check that we read back what we wrote */ + if (*m != (0xA5A0 | i)) + break; + + /* check for partial decode and wrap */ + for (j = 0; j < i; j++) { + volatile unsigned short *p = (unsigned short *)(membase + (j * 0x1000)); + if (*p != (0xA5A0 | j)) + break; + } + } + local_irq_restore(flags); + /* + * in any case, we stopped once we tried one block too many, + * or once we reached 32K + */ + return i * 0x1000; +} + +static bool __init mac8390_init(struct net_device *dev, struct nubus_dev *ndev, + enum mac8390_type cardtype) +{ + struct nubus_dir dir; + struct nubus_dirent ent; + int offset; + volatile unsigned short *i; + + printk_once(KERN_INFO pr_fmt("%s"), version); + + dev->irq = SLOT2IRQ(ndev->board->slot); + /* This is getting to be a habit */ + dev->base_addr = (ndev->board->slot_addr | + ((ndev->board->slot & 0xf) << 20)); + + /* + * Get some Nubus info - we will trust the card's idea + * of where its memory and registers are. + */ + + if (nubus_get_func_dir(ndev, &dir) == -1) { + pr_err("%s: Unable to get Nubus functional directory for slot %X!\n", + dev->name, ndev->board->slot); + return false; + } + + /* Get the MAC address */ + if (nubus_find_rsrc(&dir, NUBUS_RESID_MAC_ADDRESS, &ent) == -1) { + pr_info("%s: Couldn't get MAC address!\n", dev->name); + return false; + } + + nubus_get_rsrc_mem(dev->dev_addr, &ent, 6); + + if (useresources[cardtype] == 1) { + nubus_rewinddir(&dir); + if (nubus_find_rsrc(&dir, NUBUS_RESID_MINOR_BASEOS, + &ent) == -1) { + pr_err("%s: Memory offset resource for slot %X not found!\n", + dev->name, ndev->board->slot); + return false; + } + nubus_get_rsrc_mem(&offset, &ent, 4); + dev->mem_start = dev->base_addr + offset; + /* yes, this is how the Apple driver does it */ + dev->base_addr = dev->mem_start + 0x10000; + nubus_rewinddir(&dir); + if (nubus_find_rsrc(&dir, NUBUS_RESID_MINOR_LENGTH, + &ent) == -1) { + pr_info("%s: Memory length resource for slot %X not found, probing\n", + dev->name, ndev->board->slot); + offset = mac8390_memsize(dev->mem_start); + } else { + nubus_get_rsrc_mem(&offset, &ent, 4); + } + dev->mem_end = dev->mem_start + offset; + } else { + switch (cardtype) { + case MAC8390_KINETICS: + case MAC8390_DAYNA: /* it's the same */ + dev->base_addr = (int)(ndev->board->slot_addr + + DAYNA_8390_BASE); + dev->mem_start = (int)(ndev->board->slot_addr + + DAYNA_8390_MEM); + dev->mem_end = dev->mem_start + + mac8390_memsize(dev->mem_start); + break; + case MAC8390_INTERLAN: + dev->base_addr = (int)(ndev->board->slot_addr + + INTERLAN_8390_BASE); + dev->mem_start = (int)(ndev->board->slot_addr + + INTERLAN_8390_MEM); + dev->mem_end = dev->mem_start + + mac8390_memsize(dev->mem_start); + break; + case MAC8390_CABLETRON: + dev->base_addr = (int)(ndev->board->slot_addr + + CABLETRON_8390_BASE); + dev->mem_start = (int)(ndev->board->slot_addr + + CABLETRON_8390_MEM); + /* The base address is unreadable if 0x00 + * has been written to the command register + * Reset the chip by writing E8390_NODMA + + * E8390_PAGE0 + E8390_STOP just to be + * sure + */ + i = (void *)dev->base_addr; + *i = 0x21; + dev->mem_end = dev->mem_start + + mac8390_memsize(dev->mem_start); + break; + + default: + pr_err("Card type %s is unsupported, sorry\n", + ndev->board->name); + return false; + } + } + + return true; +} + +struct net_device * __init mac8390_probe(int unit) +{ + struct net_device *dev; + struct nubus_dev *ndev = NULL; + int err = -ENODEV; + + static unsigned int slots; + + enum mac8390_type cardtype; + + /* probably should check for Nubus instead */ + + if (!MACH_IS_MAC) + return ERR_PTR(-ENODEV); + + dev = ____alloc_ei_netdev(0); + if (!dev) + return ERR_PTR(-ENOMEM); + + if (unit >= 0) + sprintf(dev->name, "eth%d", unit); + + while ((ndev = nubus_find_type(NUBUS_CAT_NETWORK, NUBUS_TYPE_ETHERNET, + ndev))) { + /* Have we seen it already? */ + if (slots & (1 << ndev->board->slot)) + continue; + slots |= 1 << ndev->board->slot; + + cardtype = mac8390_ident(ndev); + if (cardtype == MAC8390_NONE) + continue; + + if (!mac8390_init(dev, ndev, cardtype)) + continue; + + /* Do the nasty 8390 stuff */ + if (!mac8390_initdev(dev, ndev, cardtype)) + break; + } + + if (!ndev) + goto out; + err = register_netdev(dev); + if (err) + goto out; + return dev; + +out: + free_netdev(dev); + return ERR_PTR(err); +} + +#ifdef MODULE +MODULE_AUTHOR("David Huggins-Daines <dhd@debian.org> and others"); +MODULE_DESCRIPTION("Macintosh NS8390-based Nubus Ethernet driver"); +MODULE_LICENSE("GPL"); + +/* overkill, of course */ +static struct net_device *dev_mac8390[15]; +int init_module(void) +{ + int i; + for (i = 0; i < 15; i++) { + struct net_device *dev = mac8390_probe(-1); + if (IS_ERR(dev)) + break; + dev_mac890[i] = dev; + } + if (!i) { + pr_notice("No useable cards found, driver NOT installed.\n"); + return -ENODEV; + } + return 0; +} + +void cleanup_module(void) +{ + int i; + for (i = 0; i < 15; i++) { + struct net_device *dev = dev_mac890[i]; + if (dev) { + unregister_netdev(dev); + free_netdev(dev); + } + } +} + +#endif /* MODULE */ + +static const struct net_device_ops mac8390_netdev_ops = { + .ndo_open = mac8390_open, + .ndo_stop = mac8390_close, + .ndo_start_xmit = __ei_start_xmit, + .ndo_tx_timeout = __ei_tx_timeout, + .ndo_get_stats = __ei_get_stats, + .ndo_set_multicast_list = __ei_set_multicast_list, + .ndo_validate_addr = eth_validate_addr, + .ndo_set_mac_address = eth_mac_addr, + .ndo_change_mtu = eth_change_mtu, +#ifdef CONFIG_NET_POLL_CONTROLLER + .ndo_poll_controller = __ei_poll, +#endif +}; + +static int __init mac8390_initdev(struct net_device *dev, + struct nubus_dev *ndev, + enum mac8390_type type) +{ + static u32 fwrd4_offsets[16] = { + 0, 4, 8, 12, + 16, 20, 24, 28, + 32, 36, 40, 44, + 48, 52, 56, 60 + }; + static u32 back4_offsets[16] = { + 60, 56, 52, 48, + 44, 40, 36, 32, + 28, 24, 20, 16, + 12, 8, 4, 0 + }; + static u32 fwrd2_offsets[16] = { + 0, 2, 4, 6, + 8, 10, 12, 14, + 16, 18, 20, 22, + 24, 26, 28, 30 + }; + + int access_bitmode = 0; + + /* Now fill in our stuff */ + dev->netdev_ops = &mac8390_netdev_ops; + + /* GAR, ei_status is actually a macro even though it looks global */ + ei_status.name = cardname[type]; + ei_status.word16 = word16[type]; + + /* Cabletron's TX/RX buffers are backwards */ + if (type == MAC8390_CABLETRON) { + ei_status.tx_start_page = CABLETRON_TX_START_PG; + ei_status.rx_start_page = CABLETRON_RX_START_PG; + ei_status.stop_page = CABLETRON_RX_STOP_PG; + ei_status.rmem_start = dev->mem_start; + ei_status.rmem_end = dev->mem_start + CABLETRON_RX_STOP_PG*256; + } else { + ei_status.tx_start_page = WD_START_PG; + ei_status.rx_start_page = WD_START_PG + TX_PAGES; + ei_status.stop_page = (dev->mem_end - dev->mem_start)/256; + ei_status.rmem_start = dev->mem_start + TX_PAGES*256; + ei_status.rmem_end = dev->mem_end; + } + + /* Fill in model-specific information and functions */ + switch (type) { + case MAC8390_FARALLON: + case MAC8390_APPLE: + switch (mac8390_testio(dev->mem_start)) { + case ACCESS_UNKNOWN: + pr_err("Don't know how to access card memory!\n"); + return -ENODEV; + break; + + case ACCESS_16: + /* 16 bit card, register map is reversed */ + ei_status.reset_8390 = mac8390_no_reset; + ei_status.block_input = slow_sane_block_input; + ei_status.block_output = slow_sane_block_output; + ei_status.get_8390_hdr = slow_sane_get_8390_hdr; + ei_status.reg_offset = back4_offsets; + break; + + case ACCESS_32: + /* 32 bit card, register map is reversed */ + ei_status.reset_8390 = mac8390_no_reset; + ei_status.block_input = sane_block_input; + ei_status.block_output = sane_block_output; + ei_status.get_8390_hdr = sane_get_8390_hdr; + ei_status.reg_offset = back4_offsets; + access_bitmode = 1; + break; + } + break; + + case MAC8390_ASANTE: + /* Some Asante cards pass the 32 bit test + * but overwrite system memory when run at 32 bit. + * so we run them all at 16 bit. + */ + ei_status.reset_8390 = mac8390_no_reset; + ei_status.block_input = slow_sane_block_input; + ei_status.block_output = slow_sane_block_output; + ei_status.get_8390_hdr = slow_sane_get_8390_hdr; + ei_status.reg_offset = back4_offsets; + break; + + case MAC8390_CABLETRON: + /* 16 bit card, register map is short forward */ + ei_status.reset_8390 = mac8390_no_reset; + ei_status.block_input = slow_sane_block_input; + ei_status.block_output = slow_sane_block_output; + ei_status.get_8390_hdr = slow_sane_get_8390_hdr; + ei_status.reg_offset = fwrd2_offsets; + break; + + case MAC8390_DAYNA: + case MAC8390_KINETICS: + /* 16 bit memory, register map is forward */ + /* dayna and similar */ + ei_status.reset_8390 = mac8390_no_reset; + ei_status.block_input = dayna_block_input; + ei_status.block_output = dayna_block_output; + ei_status.get_8390_hdr = dayna_get_8390_hdr; + ei_status.reg_offset = fwrd4_offsets; + break; + + case MAC8390_INTERLAN: + /* 16 bit memory, register map is forward */ + ei_status.reset_8390 = interlan_reset; + ei_status.block_input = slow_sane_block_input; + ei_status.block_output = slow_sane_block_output; + ei_status.get_8390_hdr = slow_sane_get_8390_hdr; + ei_status.reg_offset = fwrd4_offsets; + break; + + default: + pr_err("Card type %s is unsupported, sorry\n", + ndev->board->name); + return -ENODEV; + } + + __NS8390_init(dev, 0); + + /* Good, done, now spit out some messages */ + pr_info("%s: %s in slot %X (type %s)\n", + dev->name, ndev->board->name, ndev->board->slot, + cardname[type]); + pr_info("MAC %pM IRQ %d, %d KB shared memory at %#lx, %d-bit access.\n", + dev->dev_addr, dev->irq, + (unsigned int)(dev->mem_end - dev->mem_start) >> 10, + dev->mem_start, access_bitmode ? 32 : 16); + return 0; +} + +static int mac8390_open(struct net_device *dev) +{ + int err; + + __ei_open(dev); + err = request_irq(dev->irq, __ei_interrupt, 0, "8390 Ethernet", dev); + if (err) + pr_err("%s: unable to get IRQ %d\n", dev->name, dev->irq); + return err; +} + +static int mac8390_close(struct net_device *dev) +{ + free_irq(dev->irq, dev); + __ei_close(dev); + return 0; +} + +static void mac8390_no_reset(struct net_device *dev) +{ + ei_status.txing = 0; + if (ei_debug > 1) + pr_info("reset not supported\n"); +} + +static void interlan_reset(struct net_device *dev) +{ + unsigned char *target = nubus_slot_addr(IRQ2SLOT(dev->irq)); + if (ei_debug > 1) + pr_info("Need to reset the NS8390 t=%lu...", jiffies); + ei_status.txing = 0; + target[0xC0000] = 0; + if (ei_debug > 1) + pr_cont("reset complete\n"); +} + +/* dayna_memcpy_fromio/dayna_memcpy_toio */ +/* directly from daynaport.c by Alan Cox */ +static void dayna_memcpy_fromcard(struct net_device *dev, void *to, int from, + int count) +{ + volatile unsigned char *ptr; + unsigned char *target = to; + from <<= 1; /* word, skip overhead */ + ptr = (unsigned char *)(dev->mem_start+from); + /* Leading byte? */ + if (from & 2) { + *target++ = ptr[-1]; + ptr += 2; + count--; + } + while (count >= 2) { + *(unsigned short *)target = *(unsigned short volatile *)ptr; + ptr += 4; /* skip cruft */ + target += 2; + count -= 2; + } + /* Trailing byte? */ + if (count) + *target = *ptr; +} + +static void dayna_memcpy_tocard(struct net_device *dev, int to, + const void *from, int count) +{ + volatile unsigned short *ptr; + const unsigned char *src = from; + to <<= 1; /* word, skip overhead */ + ptr = (unsigned short *)(dev->mem_start+to); + /* Leading byte? */ + if (to & 2) { /* avoid a byte write (stomps on other data) */ + ptr[-1] = (ptr[-1]&0xFF00)|*src++; + ptr++; + count--; + } + while (count >= 2) { + *ptr++ = *(unsigned short *)src; /* Copy and */ + ptr++; /* skip cruft */ + src += 2; + count -= 2; + } + /* Trailing byte? */ + if (count) { + /* card doesn't like byte writes */ + *ptr = (*ptr & 0x00FF) | (*src << 8); + } +} + +/* sane block input/output */ +static void sane_get_8390_hdr(struct net_device *dev, + struct e8390_pkt_hdr *hdr, int ring_page) +{ + unsigned long hdr_start = (ring_page - WD_START_PG)<<8; + memcpy_fromio(hdr, dev->mem_start + hdr_start, 4); + /* Fix endianness */ + hdr->count = swab16(hdr->count); +} + +static void sane_block_input(struct net_device *dev, int count, + struct sk_buff *skb, int ring_offset) +{ + unsigned long xfer_base = ring_offset - (WD_START_PG<<8); + unsigned long xfer_start = xfer_base + dev->mem_start; + + if (xfer_start + count > ei_status.rmem_end) { + /* We must wrap the input move. */ + int semi_count = ei_status.rmem_end - xfer_start; + memcpy_fromio(skb->data, dev->mem_start + xfer_base, + semi_count); + count -= semi_count; + memcpy_fromio(skb->data + semi_count, ei_status.rmem_start, + count); + } else { + memcpy_fromio(skb->data, dev->mem_start + xfer_base, count); + } +} + +static void sane_block_output(struct net_device *dev, int count, + const unsigned char *buf, int start_page) +{ + long shmem = (start_page - WD_START_PG)<<8; + + memcpy_toio(dev->mem_start + shmem, buf, count); +} + +/* dayna block input/output */ +static void dayna_get_8390_hdr(struct net_device *dev, + struct e8390_pkt_hdr *hdr, int ring_page) +{ + unsigned long hdr_start = (ring_page - WD_START_PG)<<8; + + dayna_memcpy_fromcard(dev, hdr, hdr_start, 4); + /* Fix endianness */ + hdr->count = (hdr->count & 0xFF) << 8 | (hdr->count >> 8); +} + +static void dayna_block_input(struct net_device *dev, int count, + struct sk_buff *skb, int ring_offset) +{ + unsigned long xfer_base = ring_offset - (WD_START_PG<<8); + unsigned long xfer_start = xfer_base+dev->mem_start; + + /* Note the offset math is done in card memory space which is word + per long onto our space. */ + + if (xfer_start + count > ei_status.rmem_end) { + /* We must wrap the input move. */ + int semi_count = ei_status.rmem_end - xfer_start; + dayna_memcpy_fromcard(dev, skb->data, xfer_base, semi_count); + count -= semi_count; + dayna_memcpy_fromcard(dev, skb->data + semi_count, + ei_status.rmem_start - dev->mem_start, + count); + } else { + dayna_memcpy_fromcard(dev, skb->data, xfer_base, count); + } +} + +static void dayna_block_output(struct net_device *dev, int count, + const unsigned char *buf, + int start_page) +{ + long shmem = (start_page - WD_START_PG)<<8; + + dayna_memcpy_tocard(dev, shmem, buf, count); +} + +/* Cabletron block I/O */ +static void slow_sane_get_8390_hdr(struct net_device *dev, + struct e8390_pkt_hdr *hdr, + int ring_page) +{ + unsigned long hdr_start = (ring_page - WD_START_PG)<<8; + word_memcpy_fromcard(hdr, dev->mem_start + hdr_start, 4); + /* Register endianism - fix here rather than 8390.c */ + hdr->count = (hdr->count&0xFF)<<8|(hdr->count>>8); +} + +static void slow_sane_block_input(struct net_device *dev, int count, + struct sk_buff *skb, int ring_offset) +{ + unsigned long xfer_base = ring_offset - (WD_START_PG<<8); + unsigned long xfer_start = xfer_base+dev->mem_start; + + if (xfer_start + count > ei_status.rmem_end) { + /* We must wrap the input move. */ + int semi_count = ei_status.rmem_end - xfer_start; + word_memcpy_fromcard(skb->data, dev->mem_start + xfer_base, + semi_count); + count -= semi_count; + word_memcpy_fromcard(skb->data + semi_count, + ei_status.rmem_start, count); + } else { + word_memcpy_fromcard(skb->data, dev->mem_start + xfer_base, + count); + } +} + +static void slow_sane_block_output(struct net_device *dev, int count, + const unsigned char *buf, int start_page) +{ + long shmem = (start_page - WD_START_PG)<<8; + + word_memcpy_tocard(dev->mem_start + shmem, buf, count); +} + +static void word_memcpy_tocard(unsigned long tp, const void *fp, int count) +{ + volatile unsigned short *to = (void *)tp; + const unsigned short *from = fp; + + count++; + count /= 2; + + while (count--) + *to++ = *from++; +} + +static void word_memcpy_fromcard(void *tp, unsigned long fp, int count) +{ + unsigned short *to = tp; + const volatile unsigned short *from = (const void *)fp; + + count++; + count /= 2; + + while (count--) + *to++ = *from++; +} + + diff --git a/drivers/net/ethernet/8390/ne-h8300.c b/drivers/net/ethernet/8390/ne-h8300.c new file mode 100644 index 000000000000..7298a34bc795 --- /dev/null +++ b/drivers/net/ethernet/8390/ne-h8300.c @@ -0,0 +1,685 @@ +/* ne-h8300.c: A NE2000 clone on H8/300 driver for linux. */ +/* + original ne.c + Written 1992-94 by Donald Becker. + + Copyright 1993 United States Government as represented by the + Director, National Security Agency. + + This software may be used and distributed according to the terms + of the GNU General Public License, incorporated herein by reference. + + The author may be reached as becker@scyld.com, or C/O + Scyld Computing Corporation, 410 Severn Ave., Suite 210, Annapolis MD 21403 + + H8/300 modified + Yoshinori Sato <ysato@users.sourceforge.jp> +*/ + +static const char version1[] = +"ne-h8300.c:v1.00 2004/04/11 ysato\n"; + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/delay.h> +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/jiffies.h> + +#include <asm/system.h> +#include <asm/io.h> +#include <asm/irq.h> + +#define EI_SHIFT(x) (ei_local->reg_offset[x]) + +#include "8390.h" + +#define DRV_NAME "ne-h8300" + +/* Some defines that people can play with if so inclined. */ + +/* Do we perform extra sanity checks on stuff ? */ +/* #define NE_SANITY_CHECK */ + +/* Do we implement the read before write bugfix ? */ +/* #define NE_RW_BUGFIX */ + +/* Do we have a non std. amount of memory? (in units of 256 byte pages) */ +/* #define PACKETBUF_MEMSIZE 0x40 */ + +/* A zero-terminated list of I/O addresses to be probed at boot. */ + +/* ---- No user-serviceable parts below ---- */ + +static const char version[] = + "8390.c:v1.10cvs 9/23/94 Donald Becker (becker@cesdis.gsfc.nasa.gov)\n"; + +#include "lib8390.c" + +#define NE_BASE (dev->base_addr) +#define NE_CMD 0x00 +#define NE_DATAPORT (ei_status.word16?0x20:0x10) /* NatSemi-defined port window offset. */ +#define NE_RESET (ei_status.word16?0x3f:0x1f) /* Issue a read to reset, a write to clear. */ +#define NE_IO_EXTENT (ei_status.word16?0x40:0x20) + +#define NESM_START_PG 0x40 /* First page of TX buffer */ +#define NESM_STOP_PG 0x80 /* Last page +1 of RX ring */ + +static int ne_probe1(struct net_device *dev, int ioaddr); + +static int ne_open(struct net_device *dev); +static int ne_close(struct net_device *dev); + +static void ne_reset_8390(struct net_device *dev); +static void ne_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, + int ring_page); +static void ne_block_input(struct net_device *dev, int count, + struct sk_buff *skb, int ring_offset); +static void ne_block_output(struct net_device *dev, const int count, + const unsigned char *buf, const int start_page); + + +static u32 reg_offset[16]; + +static int __init init_reg_offset(struct net_device *dev,unsigned long base_addr) +{ + struct ei_device *ei_local = netdev_priv(dev); + int i; + unsigned char bus_width; + + bus_width = *(volatile unsigned char *)ABWCR; + bus_width &= 1 << ((base_addr >> 21) & 7); + + for (i = 0; i < ARRAY_SIZE(reg_offset); i++) + if (bus_width == 0) + reg_offset[i] = i * 2 + 1; + else + reg_offset[i] = i; + + ei_local->reg_offset = reg_offset; + return 0; +} + +static int __initdata h8300_ne_count = 0; +#ifdef CONFIG_H8300H_H8MAX +static unsigned long __initdata h8300_ne_base[] = { 0x800600 }; +static int h8300_ne_irq[] = {EXT_IRQ4}; +#endif +#ifdef CONFIG_H8300H_AKI3068NET +static unsigned long __initdata h8300_ne_base[] = { 0x200000 }; +static int h8300_ne_irq[] = {EXT_IRQ5}; +#endif + +static inline int init_dev(struct net_device *dev) +{ + if (h8300_ne_count < ARRAY_SIZE(h8300_ne_base)) { + dev->base_addr = h8300_ne_base[h8300_ne_count]; + dev->irq = h8300_ne_irq[h8300_ne_count]; + h8300_ne_count++; + return 0; + } else + return -ENODEV; +} + +/* Probe for various non-shared-memory ethercards. + + NEx000-clone boards have a Station Address PROM (SAPROM) in the packet + buffer memory space. NE2000 clones have 0x57,0x57 in bytes 0x0e,0x0f of + the SAPROM, while other supposed NE2000 clones must be detected by their + SA prefix. + + Reading the SAPROM from a word-wide card with the 8390 set in byte-wide + mode results in doubled values, which can be detected and compensated for. + + The probe is also responsible for initializing the card and filling + in the 'dev' and 'ei_status' structures. + + We use the minimum memory size for some ethercard product lines, iff we can't + distinguish models. You can increase the packet buffer size by setting + PACKETBUF_MEMSIZE. Reported Cabletron packet buffer locations are: + E1010 starts at 0x100 and ends at 0x2000. + E1010-x starts at 0x100 and ends at 0x8000. ("-x" means "more memory") + E2010 starts at 0x100 and ends at 0x4000. + E2010-x starts at 0x100 and ends at 0xffff. */ + +static int __init do_ne_probe(struct net_device *dev) +{ + unsigned int base_addr = dev->base_addr; + + /* First check any supplied i/o locations. User knows best. <cough> */ + if (base_addr > 0x1ff) /* Check a single specified location. */ + return ne_probe1(dev, base_addr); + else if (base_addr != 0) /* Don't probe at all. */ + return -ENXIO; + + return -ENODEV; +} + +static void cleanup_card(struct net_device *dev) +{ + free_irq(dev->irq, dev); + release_region(dev->base_addr, NE_IO_EXTENT); +} + +#ifndef MODULE +struct net_device * __init ne_probe(int unit) +{ + struct net_device *dev = ____alloc_ei_netdev(0); + int err; + + if (!dev) + return ERR_PTR(-ENOMEM); + + if (init_dev(dev)) + return ERR_PTR(-ENODEV); + + sprintf(dev->name, "eth%d", unit); + netdev_boot_setup_check(dev); + + err = init_reg_offset(dev, dev->base_addr); + if (err) + goto out; + + err = do_ne_probe(dev); + if (err) + goto out; + return dev; +out: + free_netdev(dev); + return ERR_PTR(err); +} +#endif + +static const struct net_device_ops ne_netdev_ops = { + .ndo_open = ne_open, + .ndo_stop = ne_close, + + .ndo_start_xmit = __ei_start_xmit, + .ndo_tx_timeout = __ei_tx_timeout, + .ndo_get_stats = __ei_get_stats, + .ndo_set_multicast_list = __ei_set_multicast_list, + .ndo_validate_addr = eth_validate_addr, + .ndo_set_mac_address = eth_mac_addr, + .ndo_change_mtu = eth_change_mtu, +#ifdef CONFIG_NET_POLL_CONTROLLER + .ndo_poll_controller = __ei_poll, +#endif +}; + +static int __init ne_probe1(struct net_device *dev, int ioaddr) +{ + int i; + unsigned char SA_prom[16]; + int wordlength = 2; + const char *name = NULL; + int start_page, stop_page; + int reg0, ret; + static unsigned version_printed; + struct ei_device *ei_local = netdev_priv(dev); + unsigned char bus_width; + + if (!request_region(ioaddr, NE_IO_EXTENT, DRV_NAME)) + return -EBUSY; + + reg0 = inb_p(ioaddr); + if (reg0 == 0xFF) { + ret = -ENODEV; + goto err_out; + } + + /* Do a preliminary verification that we have a 8390. */ + { + int regd; + outb_p(E8390_NODMA+E8390_PAGE1+E8390_STOP, ioaddr + E8390_CMD); + regd = inb_p(ioaddr + EI_SHIFT(0x0d)); + outb_p(0xff, ioaddr + EI_SHIFT(0x0d)); + outb_p(E8390_NODMA+E8390_PAGE0, ioaddr + E8390_CMD); + inb_p(ioaddr + EN0_COUNTER0); /* Clear the counter by reading. */ + if (inb_p(ioaddr + EN0_COUNTER0) != 0) { + outb_p(reg0, ioaddr + EI_SHIFT(0)); + outb_p(regd, ioaddr + EI_SHIFT(0x0d)); /* Restore the old values. */ + ret = -ENODEV; + goto err_out; + } + } + + if (ei_debug && version_printed++ == 0) + printk(KERN_INFO "%s", version1); + + printk(KERN_INFO "NE*000 ethercard probe at %08x:", ioaddr); + + /* Read the 16 bytes of station address PROM. + We must first initialize registers, similar to NS8390_init(eifdev, 0). + We can't reliably read the SAPROM address without this. + (I learned the hard way!). */ + { + struct {unsigned char value, offset; } program_seq[] = + { + {E8390_NODMA+E8390_PAGE0+E8390_STOP, E8390_CMD}, /* Select page 0*/ + {0x48, EN0_DCFG}, /* Set byte-wide (0x48) access. */ + {0x00, EN0_RCNTLO}, /* Clear the count regs. */ + {0x00, EN0_RCNTHI}, + {0x00, EN0_IMR}, /* Mask completion irq. */ + {0xFF, EN0_ISR}, + {E8390_RXOFF, EN0_RXCR}, /* 0x20 Set to monitor */ + {E8390_TXOFF, EN0_TXCR}, /* 0x02 and loopback mode. */ + {32, EN0_RCNTLO}, + {0x00, EN0_RCNTHI}, + {0x00, EN0_RSARLO}, /* DMA starting at 0x0000. */ + {0x00, EN0_RSARHI}, + {E8390_RREAD+E8390_START, E8390_CMD}, + }; + + for (i = 0; i < ARRAY_SIZE(program_seq); i++) + outb_p(program_seq[i].value, ioaddr + program_seq[i].offset); + + } + bus_width = *(volatile unsigned char *)ABWCR; + bus_width &= 1 << ((ioaddr >> 21) & 7); + ei_status.word16 = (bus_width == 0); /* temporary setting */ + for(i = 0; i < 16 /*sizeof(SA_prom)*/; i++) { + SA_prom[i] = inb_p(ioaddr + NE_DATAPORT); + inb_p(ioaddr + NE_DATAPORT); /* dummy read */ + } + + start_page = NESM_START_PG; + stop_page = NESM_STOP_PG; + + if (bus_width) + wordlength = 1; + else + outb_p(0x49, ioaddr + EN0_DCFG); + + /* Set up the rest of the parameters. */ + name = (wordlength == 2) ? "NE2000" : "NE1000"; + + if (! dev->irq) { + printk(" failed to detect IRQ line.\n"); + ret = -EAGAIN; + goto err_out; + } + + /* Snarf the interrupt now. There's no point in waiting since we cannot + share and the board will usually be enabled. */ + ret = request_irq(dev->irq, __ei_interrupt, 0, name, dev); + if (ret) { + printk (" unable to get IRQ %d (errno=%d).\n", dev->irq, ret); + goto err_out; + } + + dev->base_addr = ioaddr; + + for(i = 0; i < ETHER_ADDR_LEN; i++) + dev->dev_addr[i] = SA_prom[i]; + printk(" %pM\n", dev->dev_addr); + + printk("%s: %s found at %#x, using IRQ %d.\n", + dev->name, name, ioaddr, dev->irq); + + ei_status.name = name; + ei_status.tx_start_page = start_page; + ei_status.stop_page = stop_page; + ei_status.word16 = (wordlength == 2); + + ei_status.rx_start_page = start_page + TX_PAGES; +#ifdef PACKETBUF_MEMSIZE + /* Allow the packet buffer size to be overridden by know-it-alls. */ + ei_status.stop_page = ei_status.tx_start_page + PACKETBUF_MEMSIZE; +#endif + + ei_status.reset_8390 = &ne_reset_8390; + ei_status.block_input = &ne_block_input; + ei_status.block_output = &ne_block_output; + ei_status.get_8390_hdr = &ne_get_8390_hdr; + ei_status.priv = 0; + + dev->netdev_ops = &ne_netdev_ops; + + __NS8390_init(dev, 0); + + ret = register_netdev(dev); + if (ret) + goto out_irq; + return 0; +out_irq: + free_irq(dev->irq, dev); +err_out: + release_region(ioaddr, NE_IO_EXTENT); + return ret; +} + +static int ne_open(struct net_device *dev) +{ + __ei_open(dev); + return 0; +} + +static int ne_close(struct net_device *dev) +{ + if (ei_debug > 1) + printk(KERN_DEBUG "%s: Shutting down ethercard.\n", dev->name); + __ei_close(dev); + return 0; +} + +/* Hard reset the card. This used to pause for the same period that a + 8390 reset command required, but that shouldn't be necessary. */ + +static void ne_reset_8390(struct net_device *dev) +{ + unsigned long reset_start_time = jiffies; + struct ei_device *ei_local = netdev_priv(dev); + + if (ei_debug > 1) + printk(KERN_DEBUG "resetting the 8390 t=%ld...", jiffies); + + /* DON'T change these to inb_p/outb_p or reset will fail on clones. */ + outb(inb(NE_BASE + NE_RESET), NE_BASE + NE_RESET); + + ei_status.txing = 0; + ei_status.dmaing = 0; + + /* This check _should_not_ be necessary, omit eventually. */ + while ((inb_p(NE_BASE+EN0_ISR) & ENISR_RESET) == 0) + if (time_after(jiffies, reset_start_time + 2*HZ/100)) { + printk(KERN_WARNING "%s: ne_reset_8390() did not complete.\n", dev->name); + break; + } + outb_p(ENISR_RESET, NE_BASE + EN0_ISR); /* Ack intr. */ +} + +/* Grab the 8390 specific header. Similar to the block_input routine, but + we don't need to be concerned with ring wrap as the header will be at + the start of a page, so we optimize accordingly. */ + +static void ne_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page) +{ + struct ei_device *ei_local = netdev_priv(dev); + /* This *shouldn't* happen. If it does, it's the last thing you'll see */ + + if (ei_status.dmaing) + { + printk(KERN_EMERG "%s: DMAing conflict in ne_get_8390_hdr " + "[DMAstat:%d][irqlock:%d].\n", + dev->name, ei_status.dmaing, ei_status.irqlock); + return; + } + + ei_status.dmaing |= 0x01; + outb_p(E8390_NODMA+E8390_PAGE0+E8390_START, NE_BASE + NE_CMD); + outb_p(sizeof(struct e8390_pkt_hdr), NE_BASE + EN0_RCNTLO); + outb_p(0, NE_BASE + EN0_RCNTHI); + outb_p(0, NE_BASE + EN0_RSARLO); /* On page boundary */ + outb_p(ring_page, NE_BASE + EN0_RSARHI); + outb_p(E8390_RREAD+E8390_START, NE_BASE + NE_CMD); + + if (ei_status.word16) { + int len; + unsigned short *p = (unsigned short *)hdr; + for (len = sizeof(struct e8390_pkt_hdr)>>1; len > 0; len--) + *p++ = inw(NE_BASE + NE_DATAPORT); + } else + insb(NE_BASE + NE_DATAPORT, hdr, sizeof(struct e8390_pkt_hdr)); + + outb_p(ENISR_RDC, NE_BASE + EN0_ISR); /* Ack intr. */ + ei_status.dmaing &= ~0x01; + + le16_to_cpus(&hdr->count); +} + +/* Block input and output, similar to the Crynwr packet driver. If you + are porting to a new ethercard, look at the packet driver source for hints. + The NEx000 doesn't share the on-board packet memory -- you have to put + the packet out through the "remote DMA" dataport using outb. */ + +static void ne_block_input(struct net_device *dev, int count, struct sk_buff *skb, int ring_offset) +{ + struct ei_device *ei_local = netdev_priv(dev); +#ifdef NE_SANITY_CHECK + int xfer_count = count; +#endif + char *buf = skb->data; + + /* This *shouldn't* happen. If it does, it's the last thing you'll see */ + if (ei_status.dmaing) + { + printk(KERN_EMERG "%s: DMAing conflict in ne_block_input " + "[DMAstat:%d][irqlock:%d].\n", + dev->name, ei_status.dmaing, ei_status.irqlock); + return; + } + ei_status.dmaing |= 0x01; + outb_p(E8390_NODMA+E8390_PAGE0+E8390_START, NE_BASE + NE_CMD); + outb_p(count & 0xff, NE_BASE + EN0_RCNTLO); + outb_p(count >> 8, NE_BASE + EN0_RCNTHI); + outb_p(ring_offset & 0xff, NE_BASE + EN0_RSARLO); + outb_p(ring_offset >> 8, NE_BASE + EN0_RSARHI); + outb_p(E8390_RREAD+E8390_START, NE_BASE + NE_CMD); + if (ei_status.word16) + { + int len; + unsigned short *p = (unsigned short *)buf; + for (len = count>>1; len > 0; len--) + *p++ = inw(NE_BASE + NE_DATAPORT); + if (count & 0x01) + { + buf[count-1] = inb(NE_BASE + NE_DATAPORT); +#ifdef NE_SANITY_CHECK + xfer_count++; +#endif + } + } else { + insb(NE_BASE + NE_DATAPORT, buf, count); + } + +#ifdef NE_SANITY_CHECK + /* This was for the ALPHA version only, but enough people have + been encountering problems so it is still here. If you see + this message you either 1) have a slightly incompatible clone + or 2) have noise/speed problems with your bus. */ + + if (ei_debug > 1) + { + /* DMA termination address check... */ + int addr, tries = 20; + do { + /* DON'T check for 'inb_p(EN0_ISR) & ENISR_RDC' here + -- it's broken for Rx on some cards! */ + int high = inb_p(NE_BASE + EN0_RSARHI); + int low = inb_p(NE_BASE + EN0_RSARLO); + addr = (high << 8) + low; + if (((ring_offset + xfer_count) & 0xff) == low) + break; + } while (--tries > 0); + if (tries <= 0) + printk(KERN_WARNING "%s: RX transfer address mismatch," + "%#4.4x (expected) vs. %#4.4x (actual).\n", + dev->name, ring_offset + xfer_count, addr); + } +#endif + outb_p(ENISR_RDC, NE_BASE + EN0_ISR); /* Ack intr. */ + ei_status.dmaing &= ~0x01; +} + +static void ne_block_output(struct net_device *dev, int count, + const unsigned char *buf, const int start_page) +{ + struct ei_device *ei_local = netdev_priv(dev); + unsigned long dma_start; +#ifdef NE_SANITY_CHECK + int retries = 0; +#endif + + /* Round the count up for word writes. Do we need to do this? + What effect will an odd byte count have on the 8390? + I should check someday. */ + + if (ei_status.word16 && (count & 0x01)) + count++; + + /* This *shouldn't* happen. If it does, it's the last thing you'll see */ + if (ei_status.dmaing) + { + printk(KERN_EMERG "%s: DMAing conflict in ne_block_output." + "[DMAstat:%d][irqlock:%d]\n", + dev->name, ei_status.dmaing, ei_status.irqlock); + return; + } + ei_status.dmaing |= 0x01; + /* We should already be in page 0, but to be safe... */ + outb_p(E8390_PAGE0+E8390_START+E8390_NODMA, NE_BASE + NE_CMD); + +#ifdef NE_SANITY_CHECK +retry: +#endif + +#ifdef NE8390_RW_BUGFIX + /* Handle the read-before-write bug the same way as the + Crynwr packet driver -- the NatSemi method doesn't work. + Actually this doesn't always work either, but if you have + problems with your NEx000 this is better than nothing! */ + + outb_p(0x42, NE_BASE + EN0_RCNTLO); + outb_p(0x00, NE_BASE + EN0_RCNTHI); + outb_p(0x42, NE_BASE + EN0_RSARLO); + outb_p(0x00, NE_BASE + EN0_RSARHI); + outb_p(E8390_RREAD+E8390_START, NE_BASE + NE_CMD); + /* Make certain that the dummy read has occurred. */ + udelay(6); +#endif + + outb_p(ENISR_RDC, NE_BASE + EN0_ISR); + + /* Now the normal output. */ + outb_p(count & 0xff, NE_BASE + EN0_RCNTLO); + outb_p(count >> 8, NE_BASE + EN0_RCNTHI); + outb_p(0x00, NE_BASE + EN0_RSARLO); + outb_p(start_page, NE_BASE + EN0_RSARHI); + + outb_p(E8390_RWRITE+E8390_START, NE_BASE + NE_CMD); + if (ei_status.word16) { + int len; + unsigned short *p = (unsigned short *)buf; + for (len = count>>1; len > 0; len--) + outw(*p++, NE_BASE + NE_DATAPORT); + } else { + outsb(NE_BASE + NE_DATAPORT, buf, count); + } + + dma_start = jiffies; + +#ifdef NE_SANITY_CHECK + /* This was for the ALPHA version only, but enough people have + been encountering problems so it is still here. */ + + if (ei_debug > 1) + { + /* DMA termination address check... */ + int addr, tries = 20; + do { + int high = inb_p(NE_BASE + EN0_RSARHI); + int low = inb_p(NE_BASE + EN0_RSARLO); + addr = (high << 8) + low; + if ((start_page << 8) + count == addr) + break; + } while (--tries > 0); + + if (tries <= 0) + { + printk(KERN_WARNING "%s: Tx packet transfer address mismatch," + "%#4.4x (expected) vs. %#4.4x (actual).\n", + dev->name, (start_page << 8) + count, addr); + if (retries++ == 0) + goto retry; + } + } +#endif + + while ((inb_p(NE_BASE + EN0_ISR) & ENISR_RDC) == 0) + if (time_after(jiffies, dma_start + 2*HZ/100)) { /* 20ms */ + printk(KERN_WARNING "%s: timeout waiting for Tx RDC.\n", dev->name); + ne_reset_8390(dev); + __NS8390_init(dev,1); + break; + } + + outb_p(ENISR_RDC, NE_BASE + EN0_ISR); /* Ack intr. */ + ei_status.dmaing &= ~0x01; +} + + +#ifdef MODULE +#define MAX_NE_CARDS 1 /* Max number of NE cards per module */ +static struct net_device *dev_ne[MAX_NE_CARDS]; +static int io[MAX_NE_CARDS]; +static int irq[MAX_NE_CARDS]; +static int bad[MAX_NE_CARDS]; /* 0xbad = bad sig or no reset ack */ + +module_param_array(io, int, NULL, 0); +module_param_array(irq, int, NULL, 0); +module_param_array(bad, int, NULL, 0); +MODULE_PARM_DESC(io, "I/O base address(es)"); +MODULE_PARM_DESC(irq, "IRQ number(s)"); +MODULE_DESCRIPTION("H8/300 NE2000 Ethernet driver"); +MODULE_LICENSE("GPL"); + +/* This is set up so that no ISA autoprobe takes place. We can't guarantee +that the ne2k probe is the last 8390 based probe to take place (as it +is at boot) and so the probe will get confused by any other 8390 cards. +ISA device autoprobes on a running machine are not recommended anyway. */ + +int init_module(void) +{ + int this_dev, found = 0; + int err; + + for (this_dev = 0; this_dev < MAX_NE_CARDS; this_dev++) { + struct net_device *dev = ____alloc_ei_netdev(0); + if (!dev) + break; + if (io[this_dev]) { + dev->irq = irq[this_dev]; + dev->mem_end = bad[this_dev]; + dev->base_addr = io[this_dev]; + } else { + dev->base_addr = h8300_ne_base[this_dev]; + dev->irq = h8300_ne_irq[this_dev]; + } + err = init_reg_offset(dev, dev->base_addr); + if (!err) { + if (do_ne_probe(dev) == 0) { + dev_ne[found++] = dev; + continue; + } + } + free_netdev(dev); + if (found) + break; + if (io[this_dev] != 0) + printk(KERN_WARNING "ne.c: No NE*000 card found at i/o = %#x\n", dev->base_addr); + else + printk(KERN_NOTICE "ne.c: You must supply \"io=0xNNN\" value(s) for ISA cards.\n"); + return -ENXIO; + } + if (found) + return 0; + return -ENODEV; +} + +void cleanup_module(void) +{ + int this_dev; + + for (this_dev = 0; this_dev < MAX_NE_CARDS; this_dev++) { + struct net_device *dev = dev_ne[this_dev]; + if (dev) { + unregister_netdev(dev); + cleanup_card(dev); + free_netdev(dev); + } + } +} +#endif /* MODULE */ diff --git a/drivers/net/ethernet/8390/ne.c b/drivers/net/ethernet/8390/ne.c new file mode 100644 index 000000000000..1063093b3afc --- /dev/null +++ b/drivers/net/ethernet/8390/ne.c @@ -0,0 +1,1008 @@ +/* ne.c: A general non-shared-memory NS8390 ethernet driver for linux. */ +/* + Written 1992-94 by Donald Becker. + + Copyright 1993 United States Government as represented by the + Director, National Security Agency. + + This software may be used and distributed according to the terms + of the GNU General Public License, incorporated herein by reference. + + The author may be reached as becker@scyld.com, or C/O + Scyld Computing Corporation, 410 Severn Ave., Suite 210, Annapolis MD 21403 + + This driver should work with many programmed-I/O 8390-based ethernet + boards. Currently it supports the NE1000, NE2000, many clones, + and some Cabletron products. + + Changelog: + + Paul Gortmaker : use ENISR_RDC to monitor Tx PIO uploads, made + sanity checks and bad clone support optional. + Paul Gortmaker : new reset code, reset card after probe at boot. + Paul Gortmaker : multiple card support for module users. + Paul Gortmaker : Support for PCI ne2k clones, similar to lance.c + Paul Gortmaker : Allow users with bad cards to avoid full probe. + Paul Gortmaker : PCI probe changes, more PCI cards supported. + rjohnson@analogic.com : Changed init order so an interrupt will only + occur after memory is allocated for dev->priv. Deallocated memory + last in cleanup_modue() + Richard Guenther : Added support for ISAPnP cards + Paul Gortmaker : Discontinued PCI support - use ne2k-pci.c instead. + Hayato Fujiwara : Add m32r support. + +*/ + +/* Routines for the NatSemi-based designs (NE[12]000). */ + +static const char version1[] = +"ne.c:v1.10 9/23/94 Donald Becker (becker@scyld.com)\n"; +static const char version2[] = +"Last modified Nov 1, 2000 by Paul Gortmaker\n"; + + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/isapnp.h> +#include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/delay.h> +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/jiffies.h> +#include <linux/platform_device.h> + +#include <asm/system.h> +#include <asm/io.h> + +#include "8390.h" + +#define DRV_NAME "ne" + +/* Some defines that people can play with if so inclined. */ + +/* Do we support clones that don't adhere to 14,15 of the SAprom ? */ +#define SUPPORT_NE_BAD_CLONES +/* 0xbad = bad sig or no reset ack */ +#define BAD 0xbad + +#define MAX_NE_CARDS 4 /* Max number of NE cards per module */ +static struct platform_device *pdev_ne[MAX_NE_CARDS]; +static int io[MAX_NE_CARDS]; +static int irq[MAX_NE_CARDS]; +static int bad[MAX_NE_CARDS]; + +#ifdef MODULE +module_param_array(io, int, NULL, 0); +module_param_array(irq, int, NULL, 0); +module_param_array(bad, int, NULL, 0); +MODULE_PARM_DESC(io, "I/O base address(es),required"); +MODULE_PARM_DESC(irq, "IRQ number(s)"); +MODULE_PARM_DESC(bad, "Accept card(s) with bad signatures"); +MODULE_DESCRIPTION("NE1000/NE2000 ISA/PnP Ethernet driver"); +MODULE_LICENSE("GPL"); +#endif /* MODULE */ + +/* Do we perform extra sanity checks on stuff ? */ +/* #define NE_SANITY_CHECK */ + +/* Do we implement the read before write bugfix ? */ +/* #define NE_RW_BUGFIX */ + +/* Do we have a non std. amount of memory? (in units of 256 byte pages) */ +/* #define PACKETBUF_MEMSIZE 0x40 */ + +/* This is set up so that no ISA autoprobe takes place. We can't guarantee +that the ne2k probe is the last 8390 based probe to take place (as it +is at boot) and so the probe will get confused by any other 8390 cards. +ISA device autoprobes on a running machine are not recommended anyway. */ +#if !defined(MODULE) && (defined(CONFIG_ISA) || defined(CONFIG_M32R)) +/* Do we need a portlist for the ISA auto-probe ? */ +#define NEEDS_PORTLIST +#endif + +/* A zero-terminated list of I/O addresses to be probed at boot. */ +#ifdef NEEDS_PORTLIST +static unsigned int netcard_portlist[] __initdata = { + 0x300, 0x280, 0x320, 0x340, 0x360, 0x380, 0 +}; +#endif + +static struct isapnp_device_id isapnp_clone_list[] __initdata = { + { ISAPNP_CARD_ID('A','X','E',0x2011), + ISAPNP_VENDOR('A','X','E'), ISAPNP_FUNCTION(0x2011), + (long) "NetGear EA201" }, + { ISAPNP_ANY_ID, ISAPNP_ANY_ID, + ISAPNP_VENDOR('E','D','I'), ISAPNP_FUNCTION(0x0216), + (long) "NN NE2000" }, + { ISAPNP_ANY_ID, ISAPNP_ANY_ID, + ISAPNP_VENDOR('P','N','P'), ISAPNP_FUNCTION(0x80d6), + (long) "Generic PNP" }, + { } /* terminate list */ +}; + +MODULE_DEVICE_TABLE(isapnp, isapnp_clone_list); + +#ifdef SUPPORT_NE_BAD_CLONES +/* A list of bad clones that we none-the-less recognize. */ +static struct { const char *name8, *name16; unsigned char SAprefix[4];} +bad_clone_list[] __initdata = { + {"DE100", "DE200", {0x00, 0xDE, 0x01,}}, + {"DE120", "DE220", {0x00, 0x80, 0xc8,}}, + {"DFI1000", "DFI2000", {'D', 'F', 'I',}}, /* Original, eh? */ + {"EtherNext UTP8", "EtherNext UTP16", {0x00, 0x00, 0x79}}, + {"NE1000","NE2000-invalid", {0x00, 0x00, 0xd8}}, /* Ancient real NE1000. */ + {"NN1000", "NN2000", {0x08, 0x03, 0x08}}, /* Outlaw no-name clone. */ + {"4-DIM8","4-DIM16", {0x00,0x00,0x4d,}}, /* Outlaw 4-Dimension cards. */ + {"Con-Intl_8", "Con-Intl_16", {0x00, 0x00, 0x24}}, /* Connect Int'nl */ + {"ET-100","ET-200", {0x00, 0x45, 0x54}}, /* YANG and YA clone */ + {"COMPEX","COMPEX16",{0x00,0x80,0x48}}, /* Broken ISA Compex cards */ + {"E-LAN100", "E-LAN200", {0x00, 0x00, 0x5d}}, /* Broken ne1000 clones */ + {"PCM-4823", "PCM-4823", {0x00, 0xc0, 0x6c}}, /* Broken Advantech MoBo */ + {"REALTEK", "RTL8019", {0x00, 0x00, 0xe8}}, /* no-name with Realtek chip */ +#ifdef CONFIG_MACH_TX49XX + {"RBHMA4X00-RTL8019", "RBHMA4X00-RTL8019", {0x00, 0x60, 0x0a}}, /* Toshiba built-in */ +#endif + {"LCS-8834", "LCS-8836", {0x04, 0x04, 0x37}}, /* ShinyNet (SET) */ + {NULL,} +}; +#endif + +/* ---- No user-serviceable parts below ---- */ + +#define NE_BASE (dev->base_addr) +#define NE_CMD 0x00 +#define NE_DATAPORT 0x10 /* NatSemi-defined port window offset. */ +#define NE_RESET 0x1f /* Issue a read to reset, a write to clear. */ +#define NE_IO_EXTENT 0x20 + +#define NE1SM_START_PG 0x20 /* First page of TX buffer */ +#define NE1SM_STOP_PG 0x40 /* Last page +1 of RX ring */ +#define NESM_START_PG 0x40 /* First page of TX buffer */ +#define NESM_STOP_PG 0x80 /* Last page +1 of RX ring */ + +#if defined(CONFIG_PLAT_MAPPI) +# define DCR_VAL 0x4b +#elif defined(CONFIG_PLAT_OAKS32R) || \ + defined(CONFIG_MACH_TX49XX) +# define DCR_VAL 0x48 /* 8-bit mode */ +#else +# define DCR_VAL 0x49 +#endif + +static int ne_probe1(struct net_device *dev, unsigned long ioaddr); +static int ne_probe_isapnp(struct net_device *dev); + +static void ne_reset_8390(struct net_device *dev); +static void ne_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, + int ring_page); +static void ne_block_input(struct net_device *dev, int count, + struct sk_buff *skb, int ring_offset); +static void ne_block_output(struct net_device *dev, const int count, + const unsigned char *buf, const int start_page); + + +/* Probe for various non-shared-memory ethercards. + + NEx000-clone boards have a Station Address PROM (SAPROM) in the packet + buffer memory space. NE2000 clones have 0x57,0x57 in bytes 0x0e,0x0f of + the SAPROM, while other supposed NE2000 clones must be detected by their + SA prefix. + + Reading the SAPROM from a word-wide card with the 8390 set in byte-wide + mode results in doubled values, which can be detected and compensated for. + + The probe is also responsible for initializing the card and filling + in the 'dev' and 'ei_status' structures. + + We use the minimum memory size for some ethercard product lines, iff we can't + distinguish models. You can increase the packet buffer size by setting + PACKETBUF_MEMSIZE. Reported Cabletron packet buffer locations are: + E1010 starts at 0x100 and ends at 0x2000. + E1010-x starts at 0x100 and ends at 0x8000. ("-x" means "more memory") + E2010 starts at 0x100 and ends at 0x4000. + E2010-x starts at 0x100 and ends at 0xffff. */ + +static int __init do_ne_probe(struct net_device *dev) +{ + unsigned long base_addr = dev->base_addr; +#ifdef NEEDS_PORTLIST + int orig_irq = dev->irq; +#endif + + /* First check any supplied i/o locations. User knows best. <cough> */ + if (base_addr > 0x1ff) { /* Check a single specified location. */ + int ret = ne_probe1(dev, base_addr); + if (ret) + printk(KERN_WARNING "ne.c: No NE*000 card found at " + "i/o = %#lx\n", base_addr); + return ret; + } + else if (base_addr != 0) /* Don't probe at all. */ + return -ENXIO; + + /* Then look for any installed ISAPnP clones */ + if (isapnp_present() && (ne_probe_isapnp(dev) == 0)) + return 0; + +#ifdef NEEDS_PORTLIST + /* Last resort. The semi-risky ISA auto-probe. */ + for (base_addr = 0; netcard_portlist[base_addr] != 0; base_addr++) { + int ioaddr = netcard_portlist[base_addr]; + dev->irq = orig_irq; + if (ne_probe1(dev, ioaddr) == 0) + return 0; + } +#endif + + return -ENODEV; +} + +static int __init ne_probe_isapnp(struct net_device *dev) +{ + int i; + + for (i = 0; isapnp_clone_list[i].vendor != 0; i++) { + struct pnp_dev *idev = NULL; + + while ((idev = pnp_find_dev(NULL, + isapnp_clone_list[i].vendor, + isapnp_clone_list[i].function, + idev))) { + /* Avoid already found cards from previous calls */ + if (pnp_device_attach(idev) < 0) + continue; + if (pnp_activate_dev(idev) < 0) { + pnp_device_detach(idev); + continue; + } + /* if no io and irq, search for next */ + if (!pnp_port_valid(idev, 0) || !pnp_irq_valid(idev, 0)) { + pnp_device_detach(idev); + continue; + } + /* found it */ + dev->base_addr = pnp_port_start(idev, 0); + dev->irq = pnp_irq(idev, 0); + printk(KERN_INFO "ne.c: ISAPnP reports %s at i/o %#lx, irq %d.\n", + (char *) isapnp_clone_list[i].driver_data, + dev->base_addr, dev->irq); + if (ne_probe1(dev, dev->base_addr) != 0) { /* Shouldn't happen. */ + printk(KERN_ERR "ne.c: Probe of ISAPnP card at %#lx failed.\n", dev->base_addr); + pnp_device_detach(idev); + return -ENXIO; + } + ei_status.priv = (unsigned long)idev; + break; + } + if (!idev) + continue; + return 0; + } + + return -ENODEV; +} + +static int __init ne_probe1(struct net_device *dev, unsigned long ioaddr) +{ + int i; + unsigned char SA_prom[32]; + int wordlength = 2; + const char *name = NULL; + int start_page, stop_page; + int neX000, ctron, copam, bad_card; + int reg0, ret; + static unsigned version_printed; + + if (!request_region(ioaddr, NE_IO_EXTENT, DRV_NAME)) + return -EBUSY; + + reg0 = inb_p(ioaddr); + if (reg0 == 0xFF) { + ret = -ENODEV; + goto err_out; + } + + /* Do a preliminary verification that we have a 8390. */ + { + int regd; + outb_p(E8390_NODMA+E8390_PAGE1+E8390_STOP, ioaddr + E8390_CMD); + regd = inb_p(ioaddr + 0x0d); + outb_p(0xff, ioaddr + 0x0d); + outb_p(E8390_NODMA+E8390_PAGE0, ioaddr + E8390_CMD); + inb_p(ioaddr + EN0_COUNTER0); /* Clear the counter by reading. */ + if (inb_p(ioaddr + EN0_COUNTER0) != 0) { + outb_p(reg0, ioaddr); + outb_p(regd, ioaddr + 0x0d); /* Restore the old values. */ + ret = -ENODEV; + goto err_out; + } + } + + if (ei_debug && version_printed++ == 0) + printk(KERN_INFO "%s%s", version1, version2); + + printk(KERN_INFO "NE*000 ethercard probe at %#3lx:", ioaddr); + + /* A user with a poor card that fails to ack the reset, or that + does not have a valid 0x57,0x57 signature can still use this + without having to recompile. Specifying an i/o address along + with an otherwise unused dev->mem_end value of "0xBAD" will + cause the driver to skip these parts of the probe. */ + + bad_card = ((dev->base_addr != 0) && (dev->mem_end == BAD)); + + /* Reset card. Who knows what dain-bramaged state it was left in. */ + + { + unsigned long reset_start_time = jiffies; + + /* DON'T change these to inb_p/outb_p or reset will fail on clones. */ + outb(inb(ioaddr + NE_RESET), ioaddr + NE_RESET); + + while ((inb_p(ioaddr + EN0_ISR) & ENISR_RESET) == 0) + if (time_after(jiffies, reset_start_time + 2*HZ/100)) { + if (bad_card) { + printk(" (warning: no reset ack)"); + break; + } else { + printk(" not found (no reset ack).\n"); + ret = -ENODEV; + goto err_out; + } + } + + outb_p(0xff, ioaddr + EN0_ISR); /* Ack all intr. */ + } + + /* Read the 16 bytes of station address PROM. + We must first initialize registers, similar to NS8390p_init(eifdev, 0). + We can't reliably read the SAPROM address without this. + (I learned the hard way!). */ + { + struct {unsigned char value, offset; } program_seq[] = + { + {E8390_NODMA+E8390_PAGE0+E8390_STOP, E8390_CMD}, /* Select page 0*/ + {0x48, EN0_DCFG}, /* Set byte-wide (0x48) access. */ + {0x00, EN0_RCNTLO}, /* Clear the count regs. */ + {0x00, EN0_RCNTHI}, + {0x00, EN0_IMR}, /* Mask completion irq. */ + {0xFF, EN0_ISR}, + {E8390_RXOFF, EN0_RXCR}, /* 0x20 Set to monitor */ + {E8390_TXOFF, EN0_TXCR}, /* 0x02 and loopback mode. */ + {32, EN0_RCNTLO}, + {0x00, EN0_RCNTHI}, + {0x00, EN0_RSARLO}, /* DMA starting at 0x0000. */ + {0x00, EN0_RSARHI}, + {E8390_RREAD+E8390_START, E8390_CMD}, + }; + + for (i = 0; i < ARRAY_SIZE(program_seq); i++) + outb_p(program_seq[i].value, ioaddr + program_seq[i].offset); + + } + for(i = 0; i < 32 /*sizeof(SA_prom)*/; i+=2) { + SA_prom[i] = inb(ioaddr + NE_DATAPORT); + SA_prom[i+1] = inb(ioaddr + NE_DATAPORT); + if (SA_prom[i] != SA_prom[i+1]) + wordlength = 1; + } + + if (wordlength == 2) + { + for (i = 0; i < 16; i++) + SA_prom[i] = SA_prom[i+i]; + /* We must set the 8390 for word mode. */ + outb_p(DCR_VAL, ioaddr + EN0_DCFG); + start_page = NESM_START_PG; + + /* + * Realtek RTL8019AS datasheet says that the PSTOP register + * shouldn't exceed 0x60 in 8-bit mode. + * This chip can be identified by reading the signature from + * the remote byte count registers (otherwise write-only)... + */ + if ((DCR_VAL & 0x01) == 0 && /* 8-bit mode */ + inb(ioaddr + EN0_RCNTLO) == 0x50 && + inb(ioaddr + EN0_RCNTHI) == 0x70) + stop_page = 0x60; + else + stop_page = NESM_STOP_PG; + } else { + start_page = NE1SM_START_PG; + stop_page = NE1SM_STOP_PG; + } + +#if defined(CONFIG_PLAT_MAPPI) || defined(CONFIG_PLAT_OAKS32R) + neX000 = ((SA_prom[14] == 0x57 && SA_prom[15] == 0x57) + || (SA_prom[14] == 0x42 && SA_prom[15] == 0x42)); +#else + neX000 = (SA_prom[14] == 0x57 && SA_prom[15] == 0x57); +#endif + ctron = (SA_prom[0] == 0x00 && SA_prom[1] == 0x00 && SA_prom[2] == 0x1d); + copam = (SA_prom[14] == 0x49 && SA_prom[15] == 0x00); + + /* Set up the rest of the parameters. */ + if (neX000 || bad_card || copam) { + name = (wordlength == 2) ? "NE2000" : "NE1000"; + } + else if (ctron) + { + name = (wordlength == 2) ? "Ctron-8" : "Ctron-16"; + start_page = 0x01; + stop_page = (wordlength == 2) ? 0x40 : 0x20; + } + else + { +#ifdef SUPPORT_NE_BAD_CLONES + /* Ack! Well, there might be a *bad* NE*000 clone there. + Check for total bogus addresses. */ + for (i = 0; bad_clone_list[i].name8; i++) + { + if (SA_prom[0] == bad_clone_list[i].SAprefix[0] && + SA_prom[1] == bad_clone_list[i].SAprefix[1] && + SA_prom[2] == bad_clone_list[i].SAprefix[2]) + { + if (wordlength == 2) + { + name = bad_clone_list[i].name16; + } else { + name = bad_clone_list[i].name8; + } + break; + } + } + if (bad_clone_list[i].name8 == NULL) + { + printk(" not found (invalid signature %2.2x %2.2x).\n", + SA_prom[14], SA_prom[15]); + ret = -ENXIO; + goto err_out; + } +#else + printk(" not found.\n"); + ret = -ENXIO; + goto err_out; +#endif + } + + if (dev->irq < 2) + { + unsigned long cookie = probe_irq_on(); + outb_p(0x50, ioaddr + EN0_IMR); /* Enable one interrupt. */ + outb_p(0x00, ioaddr + EN0_RCNTLO); + outb_p(0x00, ioaddr + EN0_RCNTHI); + outb_p(E8390_RREAD+E8390_START, ioaddr); /* Trigger it... */ + mdelay(10); /* wait 10ms for interrupt to propagate */ + outb_p(0x00, ioaddr + EN0_IMR); /* Mask it again. */ + dev->irq = probe_irq_off(cookie); + if (ei_debug > 2) + printk(" autoirq is %d\n", dev->irq); + } else if (dev->irq == 2) + /* Fixup for users that don't know that IRQ 2 is really IRQ 9, + or don't know which one to set. */ + dev->irq = 9; + + if (! dev->irq) { + printk(" failed to detect IRQ line.\n"); + ret = -EAGAIN; + goto err_out; + } + + /* Snarf the interrupt now. There's no point in waiting since we cannot + share and the board will usually be enabled. */ + ret = request_irq(dev->irq, eip_interrupt, 0, name, dev); + if (ret) { + printk (" unable to get IRQ %d (errno=%d).\n", dev->irq, ret); + goto err_out; + } + + dev->base_addr = ioaddr; + +#ifdef CONFIG_PLAT_MAPPI + outb_p(E8390_NODMA + E8390_PAGE1 + E8390_STOP, + ioaddr + E8390_CMD); /* 0x61 */ + for (i = 0 ; i < ETHER_ADDR_LEN ; i++) { + dev->dev_addr[i] = SA_prom[i] + = inb_p(ioaddr + EN1_PHYS_SHIFT(i)); + } +#else + for(i = 0; i < ETHER_ADDR_LEN; i++) { + dev->dev_addr[i] = SA_prom[i]; + } +#endif + + printk("%pM\n", dev->dev_addr); + + ei_status.name = name; + ei_status.tx_start_page = start_page; + ei_status.stop_page = stop_page; + + /* Use 16-bit mode only if this wasn't overridden by DCR_VAL */ + ei_status.word16 = (wordlength == 2 && (DCR_VAL & 0x01)); + + ei_status.rx_start_page = start_page + TX_PAGES; +#ifdef PACKETBUF_MEMSIZE + /* Allow the packet buffer size to be overridden by know-it-alls. */ + ei_status.stop_page = ei_status.tx_start_page + PACKETBUF_MEMSIZE; +#endif + + ei_status.reset_8390 = &ne_reset_8390; + ei_status.block_input = &ne_block_input; + ei_status.block_output = &ne_block_output; + ei_status.get_8390_hdr = &ne_get_8390_hdr; + ei_status.priv = 0; + + dev->netdev_ops = &eip_netdev_ops; + NS8390p_init(dev, 0); + + ret = register_netdev(dev); + if (ret) + goto out_irq; + printk(KERN_INFO "%s: %s found at %#lx, using IRQ %d.\n", + dev->name, name, ioaddr, dev->irq); + return 0; + +out_irq: + free_irq(dev->irq, dev); +err_out: + release_region(ioaddr, NE_IO_EXTENT); + return ret; +} + +/* Hard reset the card. This used to pause for the same period that a + 8390 reset command required, but that shouldn't be necessary. */ + +static void ne_reset_8390(struct net_device *dev) +{ + unsigned long reset_start_time = jiffies; + + if (ei_debug > 1) + printk(KERN_DEBUG "resetting the 8390 t=%ld...", jiffies); + + /* DON'T change these to inb_p/outb_p or reset will fail on clones. */ + outb(inb(NE_BASE + NE_RESET), NE_BASE + NE_RESET); + + ei_status.txing = 0; + ei_status.dmaing = 0; + + /* This check _should_not_ be necessary, omit eventually. */ + while ((inb_p(NE_BASE+EN0_ISR) & ENISR_RESET) == 0) + if (time_after(jiffies, reset_start_time + 2*HZ/100)) { + printk(KERN_WARNING "%s: ne_reset_8390() did not complete.\n", dev->name); + break; + } + outb_p(ENISR_RESET, NE_BASE + EN0_ISR); /* Ack intr. */ +} + +/* Grab the 8390 specific header. Similar to the block_input routine, but + we don't need to be concerned with ring wrap as the header will be at + the start of a page, so we optimize accordingly. */ + +static void ne_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page) +{ + int nic_base = dev->base_addr; + + /* This *shouldn't* happen. If it does, it's the last thing you'll see */ + + if (ei_status.dmaing) + { + printk(KERN_EMERG "%s: DMAing conflict in ne_get_8390_hdr " + "[DMAstat:%d][irqlock:%d].\n", + dev->name, ei_status.dmaing, ei_status.irqlock); + return; + } + + ei_status.dmaing |= 0x01; + outb_p(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base+ NE_CMD); + outb_p(sizeof(struct e8390_pkt_hdr), nic_base + EN0_RCNTLO); + outb_p(0, nic_base + EN0_RCNTHI); + outb_p(0, nic_base + EN0_RSARLO); /* On page boundary */ + outb_p(ring_page, nic_base + EN0_RSARHI); + outb_p(E8390_RREAD+E8390_START, nic_base + NE_CMD); + + if (ei_status.word16) + insw(NE_BASE + NE_DATAPORT, hdr, sizeof(struct e8390_pkt_hdr)>>1); + else + insb(NE_BASE + NE_DATAPORT, hdr, sizeof(struct e8390_pkt_hdr)); + + outb_p(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */ + ei_status.dmaing &= ~0x01; + + le16_to_cpus(&hdr->count); +} + +/* Block input and output, similar to the Crynwr packet driver. If you + are porting to a new ethercard, look at the packet driver source for hints. + The NEx000 doesn't share the on-board packet memory -- you have to put + the packet out through the "remote DMA" dataport using outb. */ + +static void ne_block_input(struct net_device *dev, int count, struct sk_buff *skb, int ring_offset) +{ +#ifdef NE_SANITY_CHECK + int xfer_count = count; +#endif + int nic_base = dev->base_addr; + char *buf = skb->data; + + /* This *shouldn't* happen. If it does, it's the last thing you'll see */ + if (ei_status.dmaing) + { + printk(KERN_EMERG "%s: DMAing conflict in ne_block_input " + "[DMAstat:%d][irqlock:%d].\n", + dev->name, ei_status.dmaing, ei_status.irqlock); + return; + } + ei_status.dmaing |= 0x01; + outb_p(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base+ NE_CMD); + outb_p(count & 0xff, nic_base + EN0_RCNTLO); + outb_p(count >> 8, nic_base + EN0_RCNTHI); + outb_p(ring_offset & 0xff, nic_base + EN0_RSARLO); + outb_p(ring_offset >> 8, nic_base + EN0_RSARHI); + outb_p(E8390_RREAD+E8390_START, nic_base + NE_CMD); + if (ei_status.word16) + { + insw(NE_BASE + NE_DATAPORT,buf,count>>1); + if (count & 0x01) + { + buf[count-1] = inb(NE_BASE + NE_DATAPORT); +#ifdef NE_SANITY_CHECK + xfer_count++; +#endif + } + } else { + insb(NE_BASE + NE_DATAPORT, buf, count); + } + +#ifdef NE_SANITY_CHECK + /* This was for the ALPHA version only, but enough people have + been encountering problems so it is still here. If you see + this message you either 1) have a slightly incompatible clone + or 2) have noise/speed problems with your bus. */ + + if (ei_debug > 1) + { + /* DMA termination address check... */ + int addr, tries = 20; + do { + /* DON'T check for 'inb_p(EN0_ISR) & ENISR_RDC' here + -- it's broken for Rx on some cards! */ + int high = inb_p(nic_base + EN0_RSARHI); + int low = inb_p(nic_base + EN0_RSARLO); + addr = (high << 8) + low; + if (((ring_offset + xfer_count) & 0xff) == low) + break; + } while (--tries > 0); + if (tries <= 0) + printk(KERN_WARNING "%s: RX transfer address mismatch," + "%#4.4x (expected) vs. %#4.4x (actual).\n", + dev->name, ring_offset + xfer_count, addr); + } +#endif + outb_p(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */ + ei_status.dmaing &= ~0x01; +} + +static void ne_block_output(struct net_device *dev, int count, + const unsigned char *buf, const int start_page) +{ + int nic_base = NE_BASE; + unsigned long dma_start; +#ifdef NE_SANITY_CHECK + int retries = 0; +#endif + + /* Round the count up for word writes. Do we need to do this? + What effect will an odd byte count have on the 8390? + I should check someday. */ + + if (ei_status.word16 && (count & 0x01)) + count++; + + /* This *shouldn't* happen. If it does, it's the last thing you'll see */ + if (ei_status.dmaing) + { + printk(KERN_EMERG "%s: DMAing conflict in ne_block_output." + "[DMAstat:%d][irqlock:%d]\n", + dev->name, ei_status.dmaing, ei_status.irqlock); + return; + } + ei_status.dmaing |= 0x01; + /* We should already be in page 0, but to be safe... */ + outb_p(E8390_PAGE0+E8390_START+E8390_NODMA, nic_base + NE_CMD); + +#ifdef NE_SANITY_CHECK +retry: +#endif + +#ifdef NE8390_RW_BUGFIX + /* Handle the read-before-write bug the same way as the + Crynwr packet driver -- the NatSemi method doesn't work. + Actually this doesn't always work either, but if you have + problems with your NEx000 this is better than nothing! */ + + outb_p(0x42, nic_base + EN0_RCNTLO); + outb_p(0x00, nic_base + EN0_RCNTHI); + outb_p(0x42, nic_base + EN0_RSARLO); + outb_p(0x00, nic_base + EN0_RSARHI); + outb_p(E8390_RREAD+E8390_START, nic_base + NE_CMD); + /* Make certain that the dummy read has occurred. */ + udelay(6); +#endif + + outb_p(ENISR_RDC, nic_base + EN0_ISR); + + /* Now the normal output. */ + outb_p(count & 0xff, nic_base + EN0_RCNTLO); + outb_p(count >> 8, nic_base + EN0_RCNTHI); + outb_p(0x00, nic_base + EN0_RSARLO); + outb_p(start_page, nic_base + EN0_RSARHI); + + outb_p(E8390_RWRITE+E8390_START, nic_base + NE_CMD); + if (ei_status.word16) { + outsw(NE_BASE + NE_DATAPORT, buf, count>>1); + } else { + outsb(NE_BASE + NE_DATAPORT, buf, count); + } + + dma_start = jiffies; + +#ifdef NE_SANITY_CHECK + /* This was for the ALPHA version only, but enough people have + been encountering problems so it is still here. */ + + if (ei_debug > 1) + { + /* DMA termination address check... */ + int addr, tries = 20; + do { + int high = inb_p(nic_base + EN0_RSARHI); + int low = inb_p(nic_base + EN0_RSARLO); + addr = (high << 8) + low; + if ((start_page << 8) + count == addr) + break; + } while (--tries > 0); + + if (tries <= 0) + { + printk(KERN_WARNING "%s: Tx packet transfer address mismatch," + "%#4.4x (expected) vs. %#4.4x (actual).\n", + dev->name, (start_page << 8) + count, addr); + if (retries++ == 0) + goto retry; + } + } +#endif + + while ((inb_p(nic_base + EN0_ISR) & ENISR_RDC) == 0) + if (time_after(jiffies, dma_start + 2*HZ/100)) { /* 20ms */ + printk(KERN_WARNING "%s: timeout waiting for Tx RDC.\n", dev->name); + ne_reset_8390(dev); + NS8390p_init(dev, 1); + break; + } + + outb_p(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */ + ei_status.dmaing &= ~0x01; +} + +static int __init ne_drv_probe(struct platform_device *pdev) +{ + struct net_device *dev; + int err, this_dev = pdev->id; + struct resource *res; + + dev = alloc_eip_netdev(); + if (!dev) + return -ENOMEM; + + /* ne.c doesn't populate resources in platform_device, but + * rbtx4927_ne_init and rbtx4938_ne_init do register devices + * with resources. + */ + res = platform_get_resource(pdev, IORESOURCE_IO, 0); + if (res) { + dev->base_addr = res->start; + dev->irq = platform_get_irq(pdev, 0); + } else { + if (this_dev < 0 || this_dev >= MAX_NE_CARDS) { + free_netdev(dev); + return -EINVAL; + } + dev->base_addr = io[this_dev]; + dev->irq = irq[this_dev]; + dev->mem_end = bad[this_dev]; + } + err = do_ne_probe(dev); + if (err) { + free_netdev(dev); + return err; + } + platform_set_drvdata(pdev, dev); + + /* Update with any values found by probing, don't update if + * resources were specified. + */ + if (!res) { + io[this_dev] = dev->base_addr; + irq[this_dev] = dev->irq; + } + return 0; +} + +static int ne_drv_remove(struct platform_device *pdev) +{ + struct net_device *dev = platform_get_drvdata(pdev); + + if (dev) { + struct pnp_dev *idev = (struct pnp_dev *)ei_status.priv; + netif_device_detach(dev); + unregister_netdev(dev); + if (idev) + pnp_device_detach(idev); + /* Careful ne_drv_remove can be called twice, once from + * the platform_driver.remove and again when the + * platform_device is being removed. + */ + ei_status.priv = 0; + free_irq(dev->irq, dev); + release_region(dev->base_addr, NE_IO_EXTENT); + free_netdev(dev); + platform_set_drvdata(pdev, NULL); + } + return 0; +} + +/* Remove unused devices or all if true. */ +static void ne_loop_rm_unreg(int all) +{ + int this_dev; + struct platform_device *pdev; + for (this_dev = 0; this_dev < MAX_NE_CARDS; this_dev++) { + pdev = pdev_ne[this_dev]; + /* No network device == unused */ + if (pdev && (!platform_get_drvdata(pdev) || all)) { + ne_drv_remove(pdev); + platform_device_unregister(pdev); + pdev_ne[this_dev] = NULL; + } + } +} + +#ifdef CONFIG_PM +static int ne_drv_suspend(struct platform_device *pdev, pm_message_t state) +{ + struct net_device *dev = platform_get_drvdata(pdev); + + if (netif_running(dev)) { + struct pnp_dev *idev = (struct pnp_dev *)ei_status.priv; + netif_device_detach(dev); + if (idev) + pnp_stop_dev(idev); + } + return 0; +} + +static int ne_drv_resume(struct platform_device *pdev) +{ + struct net_device *dev = platform_get_drvdata(pdev); + + if (netif_running(dev)) { + struct pnp_dev *idev = (struct pnp_dev *)ei_status.priv; + if (idev) + pnp_start_dev(idev); + ne_reset_8390(dev); + NS8390p_init(dev, 1); + netif_device_attach(dev); + } + return 0; +} +#else +#define ne_drv_suspend NULL +#define ne_drv_resume NULL +#endif + +static struct platform_driver ne_driver = { + .remove = ne_drv_remove, + .suspend = ne_drv_suspend, + .resume = ne_drv_resume, + .driver = { + .name = DRV_NAME, + .owner = THIS_MODULE, + }, +}; + +static void __init ne_add_devices(void) +{ + int this_dev; + struct platform_device *pdev; + + for (this_dev = 0; this_dev < MAX_NE_CARDS; this_dev++) { + if (pdev_ne[this_dev]) + continue; + pdev = platform_device_register_simple( + DRV_NAME, this_dev, NULL, 0); + if (IS_ERR(pdev)) + continue; + pdev_ne[this_dev] = pdev; + } +} + +#ifdef MODULE +int __init init_module(void) +{ + int retval; + ne_add_devices(); + retval = platform_driver_probe(&ne_driver, ne_drv_probe); + if (retval) { + if (io[0] == 0) + printk(KERN_NOTICE "ne.c: You must supply \"io=0xNNN\"" + " value(s) for ISA cards.\n"); + ne_loop_rm_unreg(1); + return retval; + } + + /* Unregister unused platform_devices. */ + ne_loop_rm_unreg(0); + return retval; +} +#else /* MODULE */ +static int __init ne_init(void) +{ + int retval = platform_driver_probe(&ne_driver, ne_drv_probe); + + /* Unregister unused platform_devices. */ + ne_loop_rm_unreg(0); + return retval; +} +module_init(ne_init); + +struct net_device * __init ne_probe(int unit) +{ + int this_dev; + struct net_device *dev; + + /* Find an empty slot, that is no net_device and zero io port. */ + this_dev = 0; + while ((pdev_ne[this_dev] && platform_get_drvdata(pdev_ne[this_dev])) || + io[this_dev]) { + if (++this_dev == MAX_NE_CARDS) + return ERR_PTR(-ENOMEM); + } + + /* Get irq, io from kernel command line */ + dev = alloc_eip_netdev(); + if (!dev) + return ERR_PTR(-ENOMEM); + + sprintf(dev->name, "eth%d", unit); + netdev_boot_setup_check(dev); + + io[this_dev] = dev->base_addr; + irq[this_dev] = dev->irq; + bad[this_dev] = dev->mem_end; + + free_netdev(dev); + + ne_add_devices(); + + /* return the first device found */ + for (this_dev = 0; this_dev < MAX_NE_CARDS; this_dev++) { + if (pdev_ne[this_dev]) { + dev = platform_get_drvdata(pdev_ne[this_dev]); + if (dev) + return dev; + } + } + + return ERR_PTR(-ENODEV); +} +#endif /* MODULE */ + +static void __exit ne_exit(void) +{ + platform_driver_unregister(&ne_driver); + ne_loop_rm_unreg(1); +} +module_exit(ne_exit); diff --git a/drivers/net/ethernet/8390/ne2.c b/drivers/net/ethernet/8390/ne2.c new file mode 100644 index 000000000000..70cdc6996342 --- /dev/null +++ b/drivers/net/ethernet/8390/ne2.c @@ -0,0 +1,799 @@ +/* ne2.c: A NE/2 Ethernet Driver for Linux. */ +/* + Based on the NE2000 driver written by Donald Becker (1992-94). + modified by Wim Dumon (Apr 1996) + + This software may be used and distributed according to the terms + of the GNU General Public License, incorporated herein by reference. + + The author may be reached as wimpie@linux.cc.kuleuven.ac.be + + Currently supported: NE/2 + This patch was never tested on other MCA-ethernet adapters, but it + might work. Just give it a try and let me know if you have problems. + Also mail me if it really works, please! + + Changelog: + Mon Feb 3 16:26:02 MET 1997 + - adapted the driver to work with the 2.1.25 kernel + - multiple ne2 support (untested) + - module support (untested) + + Fri Aug 28 00:18:36 CET 1998 (David Weinehall) + - fixed a few minor typos + - made the MODULE_PARM conditional (it only works with the v2.1.x kernels) + - fixed the module support (Now it's working...) + + Mon Sep 7 19:01:44 CET 1998 (David Weinehall) + - added support for Arco Electronics AE/2-card (experimental) + + Mon Sep 14 09:53:42 CET 1998 (David Weinehall) + - added support for Compex ENET-16MC/P (experimental) + + Tue Sep 15 16:21:12 CET 1998 (David Weinehall, Magnus Jonsson, Tomas Ogren) + - Miscellaneous bugfixes + + Tue Sep 19 16:21:12 CET 1998 (Magnus Jonsson) + - Cleanup + + Wed Sep 23 14:33:34 CET 1998 (David Weinehall) + - Restructuring and rewriting for v2.1.x compliance + + Wed Oct 14 17:19:21 CET 1998 (David Weinehall) + - Added code that unregisters irq and proc-info + - Version# bump + + Mon Nov 16 15:28:23 CET 1998 (Wim Dumon) + - pass 'dev' as last parameter of request_irq in stead of 'NULL' + + Wed Feb 7 21:24:00 CET 2001 (Alfred Arnold) + - added support for the D-Link DE-320CT + + * WARNING + ------- + This is alpha-test software. It is not guaranteed to work. As a + matter of fact, I'm quite sure there are *LOTS* of bugs in here. I + would like to hear from you if you use this driver, even if it works. + If it doesn't work, be sure to send me a mail with the problems ! +*/ + +static const char *version = "ne2.c:v0.91 Nov 16 1998 Wim Dumon <wimpie@kotnet.org>\n"; + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/fcntl.h> +#include <linux/interrupt.h> +#include <linux/ioport.h> +#include <linux/in.h> +#include <linux/string.h> +#include <linux/errno.h> +#include <linux/init.h> +#include <linux/mca-legacy.h> +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/skbuff.h> +#include <linux/bitops.h> +#include <linux/jiffies.h> + +#include <asm/system.h> +#include <asm/io.h> +#include <asm/dma.h> + +#include "8390.h" + +#define DRV_NAME "ne2" + +/* Some defines that people can play with if so inclined. */ + +/* Do we perform extra sanity checks on stuff ? */ +/* #define NE_SANITY_CHECK */ + +/* Do we implement the read before write bugfix ? */ +/* #define NE_RW_BUGFIX */ + +/* Do we have a non std. amount of memory? (in units of 256 byte pages) */ +/* #define PACKETBUF_MEMSIZE 0x40 */ + + +/* ---- No user-serviceable parts below ---- */ + +#define NE_BASE (dev->base_addr) +#define NE_CMD 0x00 +#define NE_DATAPORT 0x10 /* NatSemi-defined port window offset. */ +#define NE_RESET 0x20 /* Issue a read to reset, a write to clear. */ +#define NE_IO_EXTENT 0x30 + +#define NE1SM_START_PG 0x20 /* First page of TX buffer */ +#define NE1SM_STOP_PG 0x40 /* Last page +1 of RX ring */ +#define NESM_START_PG 0x40 /* First page of TX buffer */ +#define NESM_STOP_PG 0x80 /* Last page +1 of RX ring */ + +/* From the .ADF file: */ +static unsigned int addresses[7] __initdata = + {0x1000, 0x2020, 0x8020, 0xa0a0, 0xb0b0, 0xc0c0, 0xc3d0}; +static int irqs[4] __initdata = {3, 4, 5, 9}; + +/* From the D-Link ADF file: */ +static unsigned int dlink_addresses[4] __initdata = + {0x300, 0x320, 0x340, 0x360}; +static int dlink_irqs[8] __initdata = {3, 4, 5, 9, 10, 11, 14, 15}; + +struct ne2_adapters_t { + unsigned int id; + char *name; +}; + +static struct ne2_adapters_t ne2_adapters[] __initdata = { + { 0x6354, "Arco Ethernet Adapter AE/2" }, + { 0x70DE, "Compex ENET-16 MC/P" }, + { 0x7154, "Novell Ethernet Adapter NE/2" }, + { 0x56ea, "D-Link DE-320CT" }, + { 0x0000, NULL } +}; + +extern int netcard_probe(struct net_device *dev); + +static int ne2_probe1(struct net_device *dev, int slot); + +static void ne_reset_8390(struct net_device *dev); +static void ne_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, + int ring_page); +static void ne_block_input(struct net_device *dev, int count, + struct sk_buff *skb, int ring_offset); +static void ne_block_output(struct net_device *dev, const int count, + const unsigned char *buf, const int start_page); + + +/* + * special code to read the DE-320's MAC address EEPROM. In contrast to a + * standard NE design, this is a serial EEPROM (93C46) that has to be read + * bit by bit. The EEPROM cotrol port at base + 0x1e has the following + * layout: + * + * Bit 0 = Data out (read from EEPROM) + * Bit 1 = Data in (write to EEPROM) + * Bit 2 = Clock + * Bit 3 = Chip Select + * Bit 7 = ~50 kHz clock for defined delays + * + */ + +static void __init dlink_put_eeprom(unsigned char value, unsigned int addr) +{ + int z; + unsigned char v1, v2; + + /* write the value to the NIC EEPROM register */ + + outb(value, addr + 0x1e); + + /* now wait the clock line to toggle twice. Effectively, we are + waiting (at least) for one clock cycle */ + + for (z = 0; z < 2; z++) { + do { + v1 = inb(addr + 0x1e); + v2 = inb(addr + 0x1e); + } + while (!((v1 ^ v2) & 0x80)); + } +} + +static void __init dlink_send_eeprom_bit(unsigned int bit, unsigned int addr) +{ + /* shift data bit into correct position */ + + bit = bit << 1; + + /* write value, keep clock line high for two cycles */ + + dlink_put_eeprom(0x09 | bit, addr); + dlink_put_eeprom(0x0d | bit, addr); + dlink_put_eeprom(0x0d | bit, addr); + dlink_put_eeprom(0x09 | bit, addr); +} + +static void __init dlink_send_eeprom_word(unsigned int value, unsigned int len, unsigned int addr) +{ + int z; + + /* adjust bits so that they are left-aligned in a 16-bit-word */ + + value = value << (16 - len); + + /* shift bits out to the EEPROM */ + + for (z = 0; z < len; z++) { + dlink_send_eeprom_bit((value & 0x8000) >> 15, addr); + value = value << 1; + } +} + +static unsigned int __init dlink_get_eeprom(unsigned int eeaddr, unsigned int addr) +{ + int z; + unsigned int value = 0; + + /* pull the CS line low for a moment. This resets the EEPROM- + internal logic, and makes it ready for a new command. */ + + dlink_put_eeprom(0x01, addr); + dlink_put_eeprom(0x09, addr); + + /* send one start bit, read command (1 - 0), plus the address to + the EEPROM */ + + dlink_send_eeprom_word(0x0180 | (eeaddr & 0x3f), 9, addr); + + /* get the data word. We clock by sending 0s to the EEPROM, which + get ignored during the read process */ + + for (z = 0; z < 16; z++) { + dlink_send_eeprom_bit(0, addr); + value = (value << 1) | (inb(addr + 0x1e) & 0x01); + } + + return value; +} + +/* + * Note that at boot, this probe only picks up one card at a time. + */ + +static int __init do_ne2_probe(struct net_device *dev) +{ + static int current_mca_slot = -1; + int i; + int adapter_found = 0; + + /* Do not check any supplied i/o locations. + POS registers usually don't fail :) */ + + /* MCA cards have POS registers. + Autodetecting MCA cards is extremely simple. + Just search for the card. */ + + for(i = 0; (ne2_adapters[i].name != NULL) && !adapter_found; i++) { + current_mca_slot = + mca_find_unused_adapter(ne2_adapters[i].id, 0); + + if((current_mca_slot != MCA_NOTFOUND) && !adapter_found) { + int res; + mca_set_adapter_name(current_mca_slot, + ne2_adapters[i].name); + mca_mark_as_used(current_mca_slot); + + res = ne2_probe1(dev, current_mca_slot); + if (res) + mca_mark_as_unused(current_mca_slot); + return res; + } + } + return -ENODEV; +} + +#ifndef MODULE +struct net_device * __init ne2_probe(int unit) +{ + struct net_device *dev = alloc_eip_netdev(); + int err; + + if (!dev) + return ERR_PTR(-ENOMEM); + + sprintf(dev->name, "eth%d", unit); + netdev_boot_setup_check(dev); + + err = do_ne2_probe(dev); + if (err) + goto out; + return dev; +out: + free_netdev(dev); + return ERR_PTR(err); +} +#endif + +static int ne2_procinfo(char *buf, int slot, struct net_device *dev) +{ + int len=0; + + len += sprintf(buf+len, "The NE/2 Ethernet Adapter\n" ); + len += sprintf(buf+len, "Driver written by Wim Dumon "); + len += sprintf(buf+len, "<wimpie@kotnet.org>\n"); + len += sprintf(buf+len, "Modified by "); + len += sprintf(buf+len, "David Weinehall <tao@acc.umu.se>\n"); + len += sprintf(buf+len, "and by Magnus Jonsson <bigfoot@acc.umu.se>\n"); + len += sprintf(buf+len, "Based on the original NE2000 drivers\n" ); + len += sprintf(buf+len, "Base IO: %#x\n", (unsigned int)dev->base_addr); + len += sprintf(buf+len, "IRQ : %d\n", dev->irq); + len += sprintf(buf+len, "HW addr : %pM\n", dev->dev_addr); + + return len; +} + +static int __init ne2_probe1(struct net_device *dev, int slot) +{ + int i, base_addr, irq, retval; + unsigned char POS; + unsigned char SA_prom[32]; + const char *name = "NE/2"; + int start_page, stop_page; + static unsigned version_printed; + + if (ei_debug && version_printed++ == 0) + printk(version); + + printk("NE/2 ethercard found in slot %d:", slot); + + /* Read base IO and IRQ from the POS-registers */ + POS = mca_read_stored_pos(slot, 2); + if(!(POS % 2)) { + printk(" disabled.\n"); + return -ENODEV; + } + + /* handle different POS register structure for D-Link card */ + + if (mca_read_stored_pos(slot, 0) == 0xea) { + base_addr = dlink_addresses[(POS >> 5) & 0x03]; + irq = dlink_irqs[(POS >> 2) & 0x07]; + } + else { + i = (POS & 0xE)>>1; + /* printk("Halleluja sdog, als er na de pijl een 1 staat is 1 - 1 == 0" + " en zou het moeten werken -> %d\n", i); + The above line was for remote testing, thanx to sdog ... */ + base_addr = addresses[i - 1]; + irq = irqs[(POS & 0x60)>>5]; + } + + if (!request_region(base_addr, NE_IO_EXTENT, DRV_NAME)) + return -EBUSY; + +#ifdef DEBUG + printk("POS info : pos 2 = %#x ; base = %#x ; irq = %ld\n", POS, + base_addr, irq); +#endif + +#ifndef CRYNWR_WAY + /* Reset the card the way they do it in the Crynwr packet driver */ + for (i=0; i<8; i++) + outb(0x0, base_addr + NE_RESET); + inb(base_addr + NE_RESET); + outb(0x21, base_addr + NE_CMD); + if (inb(base_addr + NE_CMD) != 0x21) { + printk("NE/2 adapter not responding\n"); + retval = -ENODEV; + goto out; + } + + /* In the crynwr sources they do a RAM-test here. I skip it. I suppose + my RAM is okay. Suppose your memory is broken. Then this test + should fail and you won't be able to use your card. But if I do not + test, you won't be able to use your card, neither. So this test + won't help you. */ + +#else /* _I_ never tested it this way .. Go ahead and try ...*/ + /* Reset card. Who knows what dain-bramaged state it was left in. */ + { + unsigned long reset_start_time = jiffies; + + /* DON'T change these to inb_p/outb_p or reset will fail on + clones.. */ + outb(inb(base_addr + NE_RESET), base_addr + NE_RESET); + + while ((inb_p(base_addr + EN0_ISR) & ENISR_RESET) == 0) + if (time_after(jiffies, reset_start_time + 2*HZ/100)) { + printk(" not found (no reset ack).\n"); + retval = -ENODEV; + goto out; + } + + outb_p(0xff, base_addr + EN0_ISR); /* Ack all intr. */ + } +#endif + + + /* Read the 16 bytes of station address PROM. + We must first initialize registers, similar to + NS8390p_init(eifdev, 0). + We can't reliably read the SAPROM address without this. + (I learned the hard way!). */ + { + struct { + unsigned char value, offset; + } program_seq[] = { + /* Select page 0 */ + {E8390_NODMA+E8390_PAGE0+E8390_STOP, E8390_CMD}, + {0x49, EN0_DCFG}, /* Set WORD-wide (0x49) access. */ + {0x00, EN0_RCNTLO}, /* Clear the count regs. */ + {0x00, EN0_RCNTHI}, + {0x00, EN0_IMR}, /* Mask completion irq. */ + {0xFF, EN0_ISR}, + {E8390_RXOFF, EN0_RXCR}, /* 0x20 Set to monitor */ + {E8390_TXOFF, EN0_TXCR}, /* 0x02 and loopback mode. */ + {32, EN0_RCNTLO}, + {0x00, EN0_RCNTHI}, + {0x00, EN0_RSARLO}, /* DMA starting at 0x0000. */ + {0x00, EN0_RSARHI}, + {E8390_RREAD+E8390_START, E8390_CMD}, + }; + + for (i = 0; i < ARRAY_SIZE(program_seq); i++) + outb_p(program_seq[i].value, base_addr + + program_seq[i].offset); + + } + for(i = 0; i < 6 /*sizeof(SA_prom)*/; i+=1) { + SA_prom[i] = inb(base_addr + NE_DATAPORT); + } + + /* I don't know whether the previous sequence includes the general + board reset procedure, so better don't omit it and just overwrite + the garbage read from a DE-320 with correct stuff. */ + + if (mca_read_stored_pos(slot, 0) == 0xea) { + unsigned int v; + + for (i = 0; i < 3; i++) { + v = dlink_get_eeprom(i, base_addr); + SA_prom[(i << 1) ] = v & 0xff; + SA_prom[(i << 1) + 1] = (v >> 8) & 0xff; + } + } + + start_page = NESM_START_PG; + stop_page = NESM_STOP_PG; + + dev->irq=irq; + + /* Snarf the interrupt now. There's no point in waiting since we cannot + share and the board will usually be enabled. */ + retval = request_irq(dev->irq, eip_interrupt, 0, DRV_NAME, dev); + if (retval) { + printk (" unable to get IRQ %d (irqval=%d).\n", + dev->irq, retval); + goto out; + } + + dev->base_addr = base_addr; + + for(i = 0; i < ETHER_ADDR_LEN; i++) + dev->dev_addr[i] = SA_prom[i]; + + printk(" %pM\n", dev->dev_addr); + + printk("%s: %s found at %#x, using IRQ %d.\n", + dev->name, name, base_addr, dev->irq); + + mca_set_adapter_procfn(slot, (MCA_ProcFn) ne2_procinfo, dev); + + ei_status.name = name; + ei_status.tx_start_page = start_page; + ei_status.stop_page = stop_page; + ei_status.word16 = (2 == 2); + + ei_status.rx_start_page = start_page + TX_PAGES; +#ifdef PACKETBUF_MEMSIZE + /* Allow the packet buffer size to be overridden by know-it-alls. */ + ei_status.stop_page = ei_status.tx_start_page + PACKETBUF_MEMSIZE; +#endif + + ei_status.reset_8390 = &ne_reset_8390; + ei_status.block_input = &ne_block_input; + ei_status.block_output = &ne_block_output; + ei_status.get_8390_hdr = &ne_get_8390_hdr; + + ei_status.priv = slot; + + dev->netdev_ops = &eip_netdev_ops; + NS8390p_init(dev, 0); + + retval = register_netdev(dev); + if (retval) + goto out1; + return 0; +out1: + mca_set_adapter_procfn( ei_status.priv, NULL, NULL); + free_irq(dev->irq, dev); +out: + release_region(base_addr, NE_IO_EXTENT); + return retval; +} + +/* Hard reset the card. This used to pause for the same period that a + 8390 reset command required, but that shouldn't be necessary. */ +static void ne_reset_8390(struct net_device *dev) +{ + unsigned long reset_start_time = jiffies; + + if (ei_debug > 1) + printk("resetting the 8390 t=%ld...", jiffies); + + /* DON'T change these to inb_p/outb_p or reset will fail on clones. */ + outb(inb(NE_BASE + NE_RESET), NE_BASE + NE_RESET); + + ei_status.txing = 0; + ei_status.dmaing = 0; + + /* This check _should_not_ be necessary, omit eventually. */ + while ((inb_p(NE_BASE+EN0_ISR) & ENISR_RESET) == 0) + if (time_after(jiffies, reset_start_time + 2*HZ/100)) { + printk("%s: ne_reset_8390() did not complete.\n", + dev->name); + break; + } + outb_p(ENISR_RESET, NE_BASE + EN0_ISR); /* Ack intr. */ +} + +/* Grab the 8390 specific header. Similar to the block_input routine, but + we don't need to be concerned with ring wrap as the header will be at + the start of a page, so we optimize accordingly. */ + +static void ne_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, + int ring_page) +{ + + int nic_base = dev->base_addr; + + /* This *shouldn't* happen. + If it does, it's the last thing you'll see */ + if (ei_status.dmaing) { + printk("%s: DMAing conflict in ne_get_8390_hdr " + "[DMAstat:%d][irqlock:%d].\n", + dev->name, ei_status.dmaing, ei_status.irqlock); + return; + } + + ei_status.dmaing |= 0x01; + outb_p(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base+ NE_CMD); + outb_p(sizeof(struct e8390_pkt_hdr), nic_base + EN0_RCNTLO); + outb_p(0, nic_base + EN0_RCNTHI); + outb_p(0, nic_base + EN0_RSARLO); /* On page boundary */ + outb_p(ring_page, nic_base + EN0_RSARHI); + outb_p(E8390_RREAD+E8390_START, nic_base + NE_CMD); + + if (ei_status.word16) + insw(NE_BASE + NE_DATAPORT, hdr, + sizeof(struct e8390_pkt_hdr)>>1); + else + insb(NE_BASE + NE_DATAPORT, hdr, + sizeof(struct e8390_pkt_hdr)); + + outb_p(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */ + ei_status.dmaing &= ~0x01; +} + +/* Block input and output, similar to the Crynwr packet driver. If you + are porting to a new ethercard, look at the packet driver source for + hints. The NEx000 doesn't share the on-board packet memory -- you have + to put the packet out through the "remote DMA" dataport using outb. */ + +static void ne_block_input(struct net_device *dev, int count, struct sk_buff *skb, + int ring_offset) +{ +#ifdef NE_SANITY_CHECK + int xfer_count = count; +#endif + int nic_base = dev->base_addr; + char *buf = skb->data; + + /* This *shouldn't* happen. + If it does, it's the last thing you'll see */ + if (ei_status.dmaing) { + printk("%s: DMAing conflict in ne_block_input " + "[DMAstat:%d][irqlock:%d].\n", + dev->name, ei_status.dmaing, ei_status.irqlock); + return; + } + ei_status.dmaing |= 0x01; + outb_p(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base+ NE_CMD); + outb_p(count & 0xff, nic_base + EN0_RCNTLO); + outb_p(count >> 8, nic_base + EN0_RCNTHI); + outb_p(ring_offset & 0xff, nic_base + EN0_RSARLO); + outb_p(ring_offset >> 8, nic_base + EN0_RSARHI); + outb_p(E8390_RREAD+E8390_START, nic_base + NE_CMD); + if (ei_status.word16) { + insw(NE_BASE + NE_DATAPORT,buf,count>>1); + if (count & 0x01) { + buf[count-1] = inb(NE_BASE + NE_DATAPORT); +#ifdef NE_SANITY_CHECK + xfer_count++; +#endif + } + } else { + insb(NE_BASE + NE_DATAPORT, buf, count); + } + +#ifdef NE_SANITY_CHECK + /* This was for the ALPHA version only, but enough people have + been encountering problems so it is still here. If you see + this message you either 1) have a slightly incompatible clone + or 2) have noise/speed problems with your bus. */ + if (ei_debug > 1) { /* DMA termination address check... */ + int addr, tries = 20; + do { + /* DON'T check for 'inb_p(EN0_ISR) & ENISR_RDC' here + -- it's broken for Rx on some cards! */ + int high = inb_p(nic_base + EN0_RSARHI); + int low = inb_p(nic_base + EN0_RSARLO); + addr = (high << 8) + low; + if (((ring_offset + xfer_count) & 0xff) == low) + break; + } while (--tries > 0); + if (tries <= 0) + printk("%s: RX transfer address mismatch," + "%#4.4x (expected) vs. %#4.4x (actual).\n", + dev->name, ring_offset + xfer_count, addr); + } +#endif + outb_p(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */ + ei_status.dmaing &= ~0x01; +} + +static void ne_block_output(struct net_device *dev, int count, + const unsigned char *buf, const int start_page) +{ + int nic_base = NE_BASE; + unsigned long dma_start; +#ifdef NE_SANITY_CHECK + int retries = 0; +#endif + + /* Round the count up for word writes. Do we need to do this? + What effect will an odd byte count have on the 8390? + I should check someday. */ + if (ei_status.word16 && (count & 0x01)) + count++; + + /* This *shouldn't* happen. + If it does, it's the last thing you'll see */ + if (ei_status.dmaing) { + printk("%s: DMAing conflict in ne_block_output." + "[DMAstat:%d][irqlock:%d]\n", + dev->name, ei_status.dmaing, ei_status.irqlock); + return; + } + ei_status.dmaing |= 0x01; + /* We should already be in page 0, but to be safe... */ + outb_p(E8390_PAGE0+E8390_START+E8390_NODMA, nic_base + NE_CMD); + +#ifdef NE_SANITY_CHECK +retry: +#endif + +#ifdef NE8390_RW_BUGFIX + /* Handle the read-before-write bug the same way as the + Crynwr packet driver -- the NatSemi method doesn't work. + Actually this doesn't always work either, but if you have + problems with your NEx000 this is better than nothing! */ + outb_p(0x42, nic_base + EN0_RCNTLO); + outb_p(0x00, nic_base + EN0_RCNTHI); + outb_p(0x42, nic_base + EN0_RSARLO); + outb_p(0x00, nic_base + EN0_RSARHI); + outb_p(E8390_RREAD+E8390_START, nic_base + NE_CMD); + /* Make certain that the dummy read has occurred. */ + SLOW_DOWN_IO; + SLOW_DOWN_IO; + SLOW_DOWN_IO; +#endif + + outb_p(ENISR_RDC, nic_base + EN0_ISR); + + /* Now the normal output. */ + outb_p(count & 0xff, nic_base + EN0_RCNTLO); + outb_p(count >> 8, nic_base + EN0_RCNTHI); + outb_p(0x00, nic_base + EN0_RSARLO); + outb_p(start_page, nic_base + EN0_RSARHI); + + outb_p(E8390_RWRITE+E8390_START, nic_base + NE_CMD); + if (ei_status.word16) { + outsw(NE_BASE + NE_DATAPORT, buf, count>>1); + } else { + outsb(NE_BASE + NE_DATAPORT, buf, count); + } + + dma_start = jiffies; + +#ifdef NE_SANITY_CHECK + /* This was for the ALPHA version only, but enough people have + been encountering problems so it is still here. */ + + if (ei_debug > 1) { /* DMA termination address check... */ + int addr, tries = 20; + do { + int high = inb_p(nic_base + EN0_RSARHI); + int low = inb_p(nic_base + EN0_RSARLO); + addr = (high << 8) + low; + if ((start_page << 8) + count == addr) + break; + } while (--tries > 0); + if (tries <= 0) { + printk("%s: Tx packet transfer address mismatch," + "%#4.4x (expected) vs. %#4.4x (actual).\n", + dev->name, (start_page << 8) + count, addr); + if (retries++ == 0) + goto retry; + } + } +#endif + + while ((inb_p(nic_base + EN0_ISR) & ENISR_RDC) == 0) + if (time_after(jiffies, dma_start + 2*HZ/100)) { /* 20ms */ + printk("%s: timeout waiting for Tx RDC.\n", dev->name); + ne_reset_8390(dev); + NS8390p_init(dev, 1); + break; + } + + outb_p(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */ + ei_status.dmaing &= ~0x01; +} + + +#ifdef MODULE +#define MAX_NE_CARDS 4 /* Max number of NE cards per module */ +static struct net_device *dev_ne[MAX_NE_CARDS]; +static int io[MAX_NE_CARDS]; +static int irq[MAX_NE_CARDS]; +static int bad[MAX_NE_CARDS]; /* 0xbad = bad sig or no reset ack */ +MODULE_LICENSE("GPL"); + +module_param_array(io, int, NULL, 0); +module_param_array(irq, int, NULL, 0); +module_param_array(bad, int, NULL, 0); +MODULE_PARM_DESC(io, "(ignored)"); +MODULE_PARM_DESC(irq, "(ignored)"); +MODULE_PARM_DESC(bad, "(ignored)"); + +/* Module code fixed by David Weinehall */ + +int __init init_module(void) +{ + struct net_device *dev; + int this_dev, found = 0; + + for (this_dev = 0; this_dev < MAX_NE_CARDS; this_dev++) { + dev = alloc_eip_netdev(); + if (!dev) + break; + dev->irq = irq[this_dev]; + dev->mem_end = bad[this_dev]; + dev->base_addr = io[this_dev]; + if (do_ne2_probe(dev) == 0) { + dev_ne[found++] = dev; + continue; + } + free_netdev(dev); + break; + } + if (found) + return 0; + printk(KERN_WARNING "ne2.c: No NE/2 card found\n"); + return -ENXIO; +} + +static void cleanup_card(struct net_device *dev) +{ + mca_mark_as_unused(ei_status.priv); + mca_set_adapter_procfn( ei_status.priv, NULL, NULL); + free_irq(dev->irq, dev); + release_region(dev->base_addr, NE_IO_EXTENT); +} + +void __exit cleanup_module(void) +{ + int this_dev; + + for (this_dev = 0; this_dev < MAX_NE_CARDS; this_dev++) { + struct net_device *dev = dev_ne[this_dev]; + if (dev) { + unregister_netdev(dev); + cleanup_card(dev); + free_netdev(dev); + } + } +} +#endif /* MODULE */ diff --git a/drivers/net/ethernet/8390/ne2k-pci.c b/drivers/net/ethernet/8390/ne2k-pci.c new file mode 100644 index 000000000000..3c333cb5d34e --- /dev/null +++ b/drivers/net/ethernet/8390/ne2k-pci.c @@ -0,0 +1,726 @@ +/* ne2k-pci.c: A NE2000 clone on PCI bus driver for Linux. */ +/* + A Linux device driver for PCI NE2000 clones. + + Authors and other copyright holders: + 1992-2000 by Donald Becker, NE2000 core and various modifications. + 1995-1998 by Paul Gortmaker, core modifications and PCI support. + Copyright 1993 assigned to the United States Government as represented + by the Director, National Security Agency. + + This software may be used and distributed according to the terms of + the GNU General Public License (GPL), incorporated herein by reference. + Drivers based on or derived from this code fall under the GPL and must + retain the authorship, copyright and license notice. This file is not + a complete program and may only be used when the entire operating + system is licensed under the GPL. + + The author may be reached as becker@scyld.com, or C/O + Scyld Computing Corporation + 410 Severn Ave., Suite 210 + Annapolis MD 21403 + + Issues remaining: + People are making PCI ne2000 clones! Oh the horror, the horror... + Limited full-duplex support. +*/ + +#define DRV_NAME "ne2k-pci" +#define DRV_VERSION "1.03" +#define DRV_RELDATE "9/22/2003" + + +/* The user-configurable values. + These may be modified when a driver module is loaded.*/ + +static int debug = 1; /* 1 normal messages, 0 quiet .. 7 verbose. */ + +#define MAX_UNITS 8 /* More are supported, limit only on options */ +/* Used to pass the full-duplex flag, etc. */ +static int full_duplex[MAX_UNITS]; +static int options[MAX_UNITS]; + +/* Force a non std. amount of memory. Units are 256 byte pages. */ +/* #define PACKETBUF_MEMSIZE 0x40 */ + + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/pci.h> +#include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/ethtool.h> +#include <linux/netdevice.h> +#include <linux/etherdevice.h> + +#include <asm/system.h> +#include <asm/io.h> +#include <asm/irq.h> +#include <asm/uaccess.h> + +#include "8390.h" + +/* These identify the driver base version and may not be removed. */ +static const char version[] __devinitconst = + KERN_INFO DRV_NAME ".c:v" DRV_VERSION " " DRV_RELDATE + " D. Becker/P. Gortmaker\n"; + +#if defined(__powerpc__) +#define inl_le(addr) le32_to_cpu(inl(addr)) +#define inw_le(addr) le16_to_cpu(inw(addr)) +#endif + +#define PFX DRV_NAME ": " + +MODULE_AUTHOR("Donald Becker / Paul Gortmaker"); +MODULE_DESCRIPTION("PCI NE2000 clone driver"); +MODULE_LICENSE("GPL"); + +module_param(debug, int, 0); +module_param_array(options, int, NULL, 0); +module_param_array(full_duplex, int, NULL, 0); +MODULE_PARM_DESC(debug, "debug level (1-2)"); +MODULE_PARM_DESC(options, "Bit 5: full duplex"); +MODULE_PARM_DESC(full_duplex, "full duplex setting(s) (1)"); + +/* Some defines that people can play with if so inclined. */ + +/* Use 32 bit data-movement operations instead of 16 bit. */ +#define USE_LONGIO + +/* Do we implement the read before write bugfix ? */ +/* #define NE_RW_BUGFIX */ + +/* Flags. We rename an existing ei_status field to store flags! */ +/* Thus only the low 8 bits are usable for non-init-time flags. */ +#define ne2k_flags reg0 +enum { + ONLY_16BIT_IO=8, ONLY_32BIT_IO=4, /* Chip can do only 16/32-bit xfers. */ + FORCE_FDX=0x20, /* User override. */ + REALTEK_FDX=0x40, HOLTEK_FDX=0x80, + STOP_PG_0x60=0x100, +}; + +enum ne2k_pci_chipsets { + CH_RealTek_RTL_8029 = 0, + CH_Winbond_89C940, + CH_Compex_RL2000, + CH_KTI_ET32P2, + CH_NetVin_NV5000SC, + CH_Via_86C926, + CH_SureCom_NE34, + CH_Winbond_W89C940F, + CH_Holtek_HT80232, + CH_Holtek_HT80229, + CH_Winbond_89C940_8c4a, +}; + + +static struct { + char *name; + int flags; +} pci_clone_list[] __devinitdata = { + {"RealTek RTL-8029", REALTEK_FDX}, + {"Winbond 89C940", 0}, + {"Compex RL2000", 0}, + {"KTI ET32P2", 0}, + {"NetVin NV5000SC", 0}, + {"Via 86C926", ONLY_16BIT_IO}, + {"SureCom NE34", 0}, + {"Winbond W89C940F", 0}, + {"Holtek HT80232", ONLY_16BIT_IO | HOLTEK_FDX}, + {"Holtek HT80229", ONLY_32BIT_IO | HOLTEK_FDX | STOP_PG_0x60 }, + {"Winbond W89C940(misprogrammed)", 0}, + {NULL,} +}; + + +static DEFINE_PCI_DEVICE_TABLE(ne2k_pci_tbl) = { + { 0x10ec, 0x8029, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_RealTek_RTL_8029 }, + { 0x1050, 0x0940, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Winbond_89C940 }, + { 0x11f6, 0x1401, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Compex_RL2000 }, + { 0x8e2e, 0x3000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_KTI_ET32P2 }, + { 0x4a14, 0x5000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_NetVin_NV5000SC }, + { 0x1106, 0x0926, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Via_86C926 }, + { 0x10bd, 0x0e34, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_SureCom_NE34 }, + { 0x1050, 0x5a5a, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Winbond_W89C940F }, + { 0x12c3, 0x0058, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Holtek_HT80232 }, + { 0x12c3, 0x5598, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Holtek_HT80229 }, + { 0x8c4a, 0x1980, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Winbond_89C940_8c4a }, + { 0, } +}; +MODULE_DEVICE_TABLE(pci, ne2k_pci_tbl); + + +/* ---- No user-serviceable parts below ---- */ + +#define NE_BASE (dev->base_addr) +#define NE_CMD 0x00 +#define NE_DATAPORT 0x10 /* NatSemi-defined port window offset. */ +#define NE_RESET 0x1f /* Issue a read to reset, a write to clear. */ +#define NE_IO_EXTENT 0x20 + +#define NESM_START_PG 0x40 /* First page of TX buffer */ +#define NESM_STOP_PG 0x80 /* Last page +1 of RX ring */ + + +static int ne2k_pci_open(struct net_device *dev); +static int ne2k_pci_close(struct net_device *dev); + +static void ne2k_pci_reset_8390(struct net_device *dev); +static void ne2k_pci_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, + int ring_page); +static void ne2k_pci_block_input(struct net_device *dev, int count, + struct sk_buff *skb, int ring_offset); +static void ne2k_pci_block_output(struct net_device *dev, const int count, + const unsigned char *buf, const int start_page); +static const struct ethtool_ops ne2k_pci_ethtool_ops; + + + +/* There is no room in the standard 8390 structure for extra info we need, + so we build a meta/outer-wrapper structure.. */ +struct ne2k_pci_card { + struct net_device *dev; + struct pci_dev *pci_dev; +}; + + + +/* + NEx000-clone boards have a Station Address (SA) PROM (SAPROM) in the packet + buffer memory space. By-the-spec NE2000 clones have 0x57,0x57 in bytes + 0x0e,0x0f of the SAPROM, while other supposed NE2000 clones must be + detected by their SA prefix. + + Reading the SAPROM from a word-wide card with the 8390 set in byte-wide + mode results in doubled values, which can be detected and compensated for. + + The probe is also responsible for initializing the card and filling + in the 'dev' and 'ei_status' structures. +*/ + +static const struct net_device_ops ne2k_netdev_ops = { + .ndo_open = ne2k_pci_open, + .ndo_stop = ne2k_pci_close, + .ndo_start_xmit = ei_start_xmit, + .ndo_tx_timeout = ei_tx_timeout, + .ndo_get_stats = ei_get_stats, + .ndo_set_multicast_list = ei_set_multicast_list, + .ndo_validate_addr = eth_validate_addr, + .ndo_set_mac_address = eth_mac_addr, + .ndo_change_mtu = eth_change_mtu, +#ifdef CONFIG_NET_POLL_CONTROLLER + .ndo_poll_controller = ei_poll, +#endif +}; + +static int __devinit ne2k_pci_init_one (struct pci_dev *pdev, + const struct pci_device_id *ent) +{ + struct net_device *dev; + int i; + unsigned char SA_prom[32]; + int start_page, stop_page; + int irq, reg0, chip_idx = ent->driver_data; + static unsigned int fnd_cnt; + long ioaddr; + int flags = pci_clone_list[chip_idx].flags; + +/* when built into the kernel, we only print version if device is found */ +#ifndef MODULE + static int printed_version; + if (!printed_version++) + printk(version); +#endif + + fnd_cnt++; + + i = pci_enable_device (pdev); + if (i) + return i; + + ioaddr = pci_resource_start (pdev, 0); + irq = pdev->irq; + + if (!ioaddr || ((pci_resource_flags (pdev, 0) & IORESOURCE_IO) == 0)) { + dev_err(&pdev->dev, "no I/O resource at PCI BAR #0\n"); + return -ENODEV; + } + + if (request_region (ioaddr, NE_IO_EXTENT, DRV_NAME) == NULL) { + dev_err(&pdev->dev, "I/O resource 0x%x @ 0x%lx busy\n", + NE_IO_EXTENT, ioaddr); + return -EBUSY; + } + + reg0 = inb(ioaddr); + if (reg0 == 0xFF) + goto err_out_free_res; + + /* Do a preliminary verification that we have a 8390. */ + { + int regd; + outb(E8390_NODMA+E8390_PAGE1+E8390_STOP, ioaddr + E8390_CMD); + regd = inb(ioaddr + 0x0d); + outb(0xff, ioaddr + 0x0d); + outb(E8390_NODMA+E8390_PAGE0, ioaddr + E8390_CMD); + inb(ioaddr + EN0_COUNTER0); /* Clear the counter by reading. */ + if (inb(ioaddr + EN0_COUNTER0) != 0) { + outb(reg0, ioaddr); + outb(regd, ioaddr + 0x0d); /* Restore the old values. */ + goto err_out_free_res; + } + } + + /* Allocate net_device, dev->priv; fill in 8390 specific dev fields. */ + dev = alloc_ei_netdev(); + if (!dev) { + dev_err(&pdev->dev, "cannot allocate ethernet device\n"); + goto err_out_free_res; + } + dev->netdev_ops = &ne2k_netdev_ops; + + SET_NETDEV_DEV(dev, &pdev->dev); + + /* Reset card. Who knows what dain-bramaged state it was left in. */ + { + unsigned long reset_start_time = jiffies; + + outb(inb(ioaddr + NE_RESET), ioaddr + NE_RESET); + + /* This looks like a horrible timing loop, but it should never take + more than a few cycles. + */ + while ((inb(ioaddr + EN0_ISR) & ENISR_RESET) == 0) + /* Limit wait: '2' avoids jiffy roll-over. */ + if (jiffies - reset_start_time > 2) { + dev_err(&pdev->dev, + "Card failure (no reset ack).\n"); + goto err_out_free_netdev; + } + + outb(0xff, ioaddr + EN0_ISR); /* Ack all intr. */ + } + + /* Read the 16 bytes of station address PROM. + We must first initialize registers, similar to NS8390_init(eifdev, 0). + We can't reliably read the SAPROM address without this. + (I learned the hard way!). */ + { + struct {unsigned char value, offset; } program_seq[] = { + {E8390_NODMA+E8390_PAGE0+E8390_STOP, E8390_CMD}, /* Select page 0*/ + {0x49, EN0_DCFG}, /* Set word-wide access. */ + {0x00, EN0_RCNTLO}, /* Clear the count regs. */ + {0x00, EN0_RCNTHI}, + {0x00, EN0_IMR}, /* Mask completion irq. */ + {0xFF, EN0_ISR}, + {E8390_RXOFF, EN0_RXCR}, /* 0x20 Set to monitor */ + {E8390_TXOFF, EN0_TXCR}, /* 0x02 and loopback mode. */ + {32, EN0_RCNTLO}, + {0x00, EN0_RCNTHI}, + {0x00, EN0_RSARLO}, /* DMA starting at 0x0000. */ + {0x00, EN0_RSARHI}, + {E8390_RREAD+E8390_START, E8390_CMD}, + }; + for (i = 0; i < ARRAY_SIZE(program_seq); i++) + outb(program_seq[i].value, ioaddr + program_seq[i].offset); + + } + + /* Note: all PCI cards have at least 16 bit access, so we don't have + to check for 8 bit cards. Most cards permit 32 bit access. */ + if (flags & ONLY_32BIT_IO) { + for (i = 0; i < 4 ; i++) + ((u32 *)SA_prom)[i] = le32_to_cpu(inl(ioaddr + NE_DATAPORT)); + } else + for(i = 0; i < 32 /*sizeof(SA_prom)*/; i++) + SA_prom[i] = inb(ioaddr + NE_DATAPORT); + + /* We always set the 8390 registers for word mode. */ + outb(0x49, ioaddr + EN0_DCFG); + start_page = NESM_START_PG; + + stop_page = flags & STOP_PG_0x60 ? 0x60 : NESM_STOP_PG; + + /* Set up the rest of the parameters. */ + dev->irq = irq; + dev->base_addr = ioaddr; + pci_set_drvdata(pdev, dev); + + ei_status.name = pci_clone_list[chip_idx].name; + ei_status.tx_start_page = start_page; + ei_status.stop_page = stop_page; + ei_status.word16 = 1; + ei_status.ne2k_flags = flags; + if (fnd_cnt < MAX_UNITS) { + if (full_duplex[fnd_cnt] > 0 || (options[fnd_cnt] & FORCE_FDX)) + ei_status.ne2k_flags |= FORCE_FDX; + } + + ei_status.rx_start_page = start_page + TX_PAGES; +#ifdef PACKETBUF_MEMSIZE + /* Allow the packet buffer size to be overridden by know-it-alls. */ + ei_status.stop_page = ei_status.tx_start_page + PACKETBUF_MEMSIZE; +#endif + + ei_status.reset_8390 = &ne2k_pci_reset_8390; + ei_status.block_input = &ne2k_pci_block_input; + ei_status.block_output = &ne2k_pci_block_output; + ei_status.get_8390_hdr = &ne2k_pci_get_8390_hdr; + ei_status.priv = (unsigned long) pdev; + + dev->ethtool_ops = &ne2k_pci_ethtool_ops; + NS8390_init(dev, 0); + + memcpy(dev->dev_addr, SA_prom, dev->addr_len); + memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len); + + i = register_netdev(dev); + if (i) + goto err_out_free_netdev; + + printk("%s: %s found at %#lx, IRQ %d, %pM.\n", + dev->name, pci_clone_list[chip_idx].name, ioaddr, dev->irq, + dev->dev_addr); + + return 0; + +err_out_free_netdev: + free_netdev (dev); +err_out_free_res: + release_region (ioaddr, NE_IO_EXTENT); + pci_set_drvdata (pdev, NULL); + return -ENODEV; + +} + +/* + * Magic incantation sequence for full duplex on the supported cards. + */ +static inline int set_realtek_fdx(struct net_device *dev) +{ + long ioaddr = dev->base_addr; + + outb(0xC0 + E8390_NODMA, ioaddr + NE_CMD); /* Page 3 */ + outb(0xC0, ioaddr + 0x01); /* Enable writes to CONFIG3 */ + outb(0x40, ioaddr + 0x06); /* Enable full duplex */ + outb(0x00, ioaddr + 0x01); /* Disable writes to CONFIG3 */ + outb(E8390_PAGE0 + E8390_NODMA, ioaddr + NE_CMD); /* Page 0 */ + return 0; +} + +static inline int set_holtek_fdx(struct net_device *dev) +{ + long ioaddr = dev->base_addr; + + outb(inb(ioaddr + 0x20) | 0x80, ioaddr + 0x20); + return 0; +} + +static int ne2k_pci_set_fdx(struct net_device *dev) +{ + if (ei_status.ne2k_flags & REALTEK_FDX) + return set_realtek_fdx(dev); + else if (ei_status.ne2k_flags & HOLTEK_FDX) + return set_holtek_fdx(dev); + + return -EOPNOTSUPP; +} + +static int ne2k_pci_open(struct net_device *dev) +{ + int ret = request_irq(dev->irq, ei_interrupt, IRQF_SHARED, dev->name, dev); + if (ret) + return ret; + + if (ei_status.ne2k_flags & FORCE_FDX) + ne2k_pci_set_fdx(dev); + + ei_open(dev); + return 0; +} + +static int ne2k_pci_close(struct net_device *dev) +{ + ei_close(dev); + free_irq(dev->irq, dev); + return 0; +} + +/* Hard reset the card. This used to pause for the same period that a + 8390 reset command required, but that shouldn't be necessary. */ +static void ne2k_pci_reset_8390(struct net_device *dev) +{ + unsigned long reset_start_time = jiffies; + + if (debug > 1) printk("%s: Resetting the 8390 t=%ld...", + dev->name, jiffies); + + outb(inb(NE_BASE + NE_RESET), NE_BASE + NE_RESET); + + ei_status.txing = 0; + ei_status.dmaing = 0; + + /* This check _should_not_ be necessary, omit eventually. */ + while ((inb(NE_BASE+EN0_ISR) & ENISR_RESET) == 0) + if (jiffies - reset_start_time > 2) { + printk("%s: ne2k_pci_reset_8390() did not complete.\n", dev->name); + break; + } + outb(ENISR_RESET, NE_BASE + EN0_ISR); /* Ack intr. */ +} + +/* Grab the 8390 specific header. Similar to the block_input routine, but + we don't need to be concerned with ring wrap as the header will be at + the start of a page, so we optimize accordingly. */ + +static void ne2k_pci_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page) +{ + + long nic_base = dev->base_addr; + + /* This *shouldn't* happen. If it does, it's the last thing you'll see */ + if (ei_status.dmaing) { + printk("%s: DMAing conflict in ne2k_pci_get_8390_hdr " + "[DMAstat:%d][irqlock:%d].\n", + dev->name, ei_status.dmaing, ei_status.irqlock); + return; + } + + ei_status.dmaing |= 0x01; + outb(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base+ NE_CMD); + outb(sizeof(struct e8390_pkt_hdr), nic_base + EN0_RCNTLO); + outb(0, nic_base + EN0_RCNTHI); + outb(0, nic_base + EN0_RSARLO); /* On page boundary */ + outb(ring_page, nic_base + EN0_RSARHI); + outb(E8390_RREAD+E8390_START, nic_base + NE_CMD); + + if (ei_status.ne2k_flags & ONLY_16BIT_IO) { + insw(NE_BASE + NE_DATAPORT, hdr, sizeof(struct e8390_pkt_hdr)>>1); + } else { + *(u32*)hdr = le32_to_cpu(inl(NE_BASE + NE_DATAPORT)); + le16_to_cpus(&hdr->count); + } + + outb(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */ + ei_status.dmaing &= ~0x01; +} + +/* Block input and output, similar to the Crynwr packet driver. If you + are porting to a new ethercard, look at the packet driver source for hints. + The NEx000 doesn't share the on-board packet memory -- you have to put + the packet out through the "remote DMA" dataport using outb. */ + +static void ne2k_pci_block_input(struct net_device *dev, int count, + struct sk_buff *skb, int ring_offset) +{ + long nic_base = dev->base_addr; + char *buf = skb->data; + + /* This *shouldn't* happen. If it does, it's the last thing you'll see */ + if (ei_status.dmaing) { + printk("%s: DMAing conflict in ne2k_pci_block_input " + "[DMAstat:%d][irqlock:%d].\n", + dev->name, ei_status.dmaing, ei_status.irqlock); + return; + } + ei_status.dmaing |= 0x01; + if (ei_status.ne2k_flags & ONLY_32BIT_IO) + count = (count + 3) & 0xFFFC; + outb(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base+ NE_CMD); + outb(count & 0xff, nic_base + EN0_RCNTLO); + outb(count >> 8, nic_base + EN0_RCNTHI); + outb(ring_offset & 0xff, nic_base + EN0_RSARLO); + outb(ring_offset >> 8, nic_base + EN0_RSARHI); + outb(E8390_RREAD+E8390_START, nic_base + NE_CMD); + + if (ei_status.ne2k_flags & ONLY_16BIT_IO) { + insw(NE_BASE + NE_DATAPORT,buf,count>>1); + if (count & 0x01) { + buf[count-1] = inb(NE_BASE + NE_DATAPORT); + } + } else { + insl(NE_BASE + NE_DATAPORT, buf, count>>2); + if (count & 3) { + buf += count & ~3; + if (count & 2) { + __le16 *b = (__le16 *)buf; + + *b++ = cpu_to_le16(inw(NE_BASE + NE_DATAPORT)); + buf = (char *)b; + } + if (count & 1) + *buf = inb(NE_BASE + NE_DATAPORT); + } + } + + outb(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */ + ei_status.dmaing &= ~0x01; +} + +static void ne2k_pci_block_output(struct net_device *dev, int count, + const unsigned char *buf, const int start_page) +{ + long nic_base = NE_BASE; + unsigned long dma_start; + + /* On little-endian it's always safe to round the count up for + word writes. */ + if (ei_status.ne2k_flags & ONLY_32BIT_IO) + count = (count + 3) & 0xFFFC; + else + if (count & 0x01) + count++; + + /* This *shouldn't* happen. If it does, it's the last thing you'll see */ + if (ei_status.dmaing) { + printk("%s: DMAing conflict in ne2k_pci_block_output." + "[DMAstat:%d][irqlock:%d]\n", + dev->name, ei_status.dmaing, ei_status.irqlock); + return; + } + ei_status.dmaing |= 0x01; + /* We should already be in page 0, but to be safe... */ + outb(E8390_PAGE0+E8390_START+E8390_NODMA, nic_base + NE_CMD); + +#ifdef NE8390_RW_BUGFIX + /* Handle the read-before-write bug the same way as the + Crynwr packet driver -- the NatSemi method doesn't work. + Actually this doesn't always work either, but if you have + problems with your NEx000 this is better than nothing! */ + outb(0x42, nic_base + EN0_RCNTLO); + outb(0x00, nic_base + EN0_RCNTHI); + outb(0x42, nic_base + EN0_RSARLO); + outb(0x00, nic_base + EN0_RSARHI); + outb(E8390_RREAD+E8390_START, nic_base + NE_CMD); +#endif + outb(ENISR_RDC, nic_base + EN0_ISR); + + /* Now the normal output. */ + outb(count & 0xff, nic_base + EN0_RCNTLO); + outb(count >> 8, nic_base + EN0_RCNTHI); + outb(0x00, nic_base + EN0_RSARLO); + outb(start_page, nic_base + EN0_RSARHI); + outb(E8390_RWRITE+E8390_START, nic_base + NE_CMD); + if (ei_status.ne2k_flags & ONLY_16BIT_IO) { + outsw(NE_BASE + NE_DATAPORT, buf, count>>1); + } else { + outsl(NE_BASE + NE_DATAPORT, buf, count>>2); + if (count & 3) { + buf += count & ~3; + if (count & 2) { + __le16 *b = (__le16 *)buf; + + outw(le16_to_cpu(*b++), NE_BASE + NE_DATAPORT); + buf = (char *)b; + } + } + } + + dma_start = jiffies; + + while ((inb(nic_base + EN0_ISR) & ENISR_RDC) == 0) + if (jiffies - dma_start > 2) { /* Avoid clock roll-over. */ + printk(KERN_WARNING "%s: timeout waiting for Tx RDC.\n", dev->name); + ne2k_pci_reset_8390(dev); + NS8390_init(dev,1); + break; + } + + outb(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */ + ei_status.dmaing &= ~0x01; +} + +static void ne2k_pci_get_drvinfo(struct net_device *dev, + struct ethtool_drvinfo *info) +{ + struct ei_device *ei = netdev_priv(dev); + struct pci_dev *pci_dev = (struct pci_dev *) ei->priv; + + strcpy(info->driver, DRV_NAME); + strcpy(info->version, DRV_VERSION); + strcpy(info->bus_info, pci_name(pci_dev)); +} + +static const struct ethtool_ops ne2k_pci_ethtool_ops = { + .get_drvinfo = ne2k_pci_get_drvinfo, +}; + +static void __devexit ne2k_pci_remove_one (struct pci_dev *pdev) +{ + struct net_device *dev = pci_get_drvdata(pdev); + + BUG_ON(!dev); + unregister_netdev(dev); + release_region(dev->base_addr, NE_IO_EXTENT); + free_netdev(dev); + pci_disable_device(pdev); + pci_set_drvdata(pdev, NULL); +} + +#ifdef CONFIG_PM +static int ne2k_pci_suspend (struct pci_dev *pdev, pm_message_t state) +{ + struct net_device *dev = pci_get_drvdata (pdev); + + netif_device_detach(dev); + pci_save_state(pdev); + pci_disable_device(pdev); + pci_set_power_state(pdev, pci_choose_state(pdev, state)); + + return 0; +} + +static int ne2k_pci_resume (struct pci_dev *pdev) +{ + struct net_device *dev = pci_get_drvdata (pdev); + int rc; + + pci_set_power_state(pdev, 0); + pci_restore_state(pdev); + + rc = pci_enable_device(pdev); + if (rc) + return rc; + + NS8390_init(dev, 1); + netif_device_attach(dev); + + return 0; +} + +#endif /* CONFIG_PM */ + + +static struct pci_driver ne2k_driver = { + .name = DRV_NAME, + .probe = ne2k_pci_init_one, + .remove = __devexit_p(ne2k_pci_remove_one), + .id_table = ne2k_pci_tbl, +#ifdef CONFIG_PM + .suspend = ne2k_pci_suspend, + .resume = ne2k_pci_resume, +#endif /* CONFIG_PM */ + +}; + + +static int __init ne2k_pci_init(void) +{ +/* when a module, this is printed whether or not devices are found in probe */ +#ifdef MODULE + printk(version); +#endif + return pci_register_driver(&ne2k_driver); +} + + +static void __exit ne2k_pci_cleanup(void) +{ + pci_unregister_driver (&ne2k_driver); +} + +module_init(ne2k_pci_init); +module_exit(ne2k_pci_cleanup); diff --git a/drivers/net/ethernet/8390/ne3210.c b/drivers/net/ethernet/8390/ne3210.c new file mode 100644 index 000000000000..243ed2aee88e --- /dev/null +++ b/drivers/net/ethernet/8390/ne3210.c @@ -0,0 +1,347 @@ +/* + ne3210.c + + Linux driver for Novell NE3210 EISA Network Adapter + + Copyright (C) 1998, Paul Gortmaker. + + This software may be used and distributed according to the terms + of the GNU General Public License, incorporated herein by reference. + + Information and Code Sources: + + 1) Based upon my other EISA 8390 drivers (lne390, es3210, smc-ultra32) + 2) The existing myriad of other Linux 8390 drivers by Donald Becker. + 3) Info for getting IRQ and sh-mem gleaned from the EISA cfg file + + The NE3210 is an EISA shared memory NS8390 implementation. Shared + memory address > 1MB should work with this driver. + + Note that the .cfg file (3/11/93, v1.0) has AUI and BNC switched + around (or perhaps there are some defective/backwards cards ???) + + This driver WILL NOT WORK FOR THE NE3200 - it is completely different + and does not use an 8390 at all. + + Updated to EISA probing API 5/2003 by Marc Zyngier. +*/ + +#include <linux/module.h> +#include <linux/eisa.h> +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/string.h> +#include <linux/delay.h> +#include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/mm.h> + +#include <asm/io.h> +#include <asm/system.h> + +#include "8390.h" + +#define DRV_NAME "ne3210" + +static void ne3210_reset_8390(struct net_device *dev); + +static void ne3210_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page); +static void ne3210_block_input(struct net_device *dev, int count, struct sk_buff *skb, int ring_offset); +static void ne3210_block_output(struct net_device *dev, int count, const unsigned char *buf, const int start_page); + +#define NE3210_START_PG 0x00 /* First page of TX buffer */ +#define NE3210_STOP_PG 0x80 /* Last page +1 of RX ring */ + +#define NE3210_IO_EXTENT 0x20 +#define NE3210_SA_PROM 0x16 /* Start of e'net addr. */ +#define NE3210_RESET_PORT 0xc84 +#define NE3210_NIC_OFFSET 0x00 /* Hello, the 8390 is *here* */ + +#define NE3210_ADDR0 0x00 /* 3 byte vendor prefix */ +#define NE3210_ADDR1 0x00 +#define NE3210_ADDR2 0x1b + +#define NE3210_CFG1 0xc84 /* NB: 0xc84 is also "reset" port. */ +#define NE3210_CFG2 0xc90 +#define NE3210_CFG_EXTENT (NE3210_CFG2 - NE3210_CFG1 + 1) + +/* + * You can OR any of the following bits together and assign it + * to NE3210_DEBUG to get verbose driver info during operation. + * Currently only the probe one is implemented. + */ + +#define NE3210_D_PROBE 0x01 +#define NE3210_D_RX_PKT 0x02 +#define NE3210_D_TX_PKT 0x04 +#define NE3210_D_IRQ 0x08 + +#define NE3210_DEBUG 0x0 + +static unsigned char irq_map[] __initdata = {15, 12, 11, 10, 9, 7, 5, 3}; +static unsigned int shmem_map[] __initdata = {0xff0, 0xfe0, 0xfff0, 0xd8, 0xffe0, 0xffc0, 0xd0, 0x0}; +static const char *ifmap[] __initdata = {"UTP", "?", "BNC", "AUI"}; +static int ifmap_val[] __initdata = { + IF_PORT_10BASET, + IF_PORT_UNKNOWN, + IF_PORT_10BASE2, + IF_PORT_AUI, +}; + +static int __init ne3210_eisa_probe (struct device *device) +{ + unsigned long ioaddr, phys_mem; + int i, retval, port_index; + struct eisa_device *edev = to_eisa_device (device); + struct net_device *dev; + + /* Allocate dev->priv and fill in 8390 specific dev fields. */ + if (!(dev = alloc_ei_netdev ())) { + printk ("ne3210.c: unable to allocate memory for dev!\n"); + return -ENOMEM; + } + + SET_NETDEV_DEV(dev, device); + dev_set_drvdata(device, dev); + ioaddr = edev->base_addr; + + if (!request_region(ioaddr, NE3210_IO_EXTENT, DRV_NAME)) { + retval = -EBUSY; + goto out; + } + + if (!request_region(ioaddr + NE3210_CFG1, + NE3210_CFG_EXTENT, DRV_NAME)) { + retval = -EBUSY; + goto out1; + } + +#if NE3210_DEBUG & NE3210_D_PROBE + printk("ne3210-debug: probe at %#x, ID %s\n", ioaddr, edev->id.sig); + printk("ne3210-debug: config regs: %#x %#x\n", + inb(ioaddr + NE3210_CFG1), inb(ioaddr + NE3210_CFG2)); +#endif + + port_index = inb(ioaddr + NE3210_CFG2) >> 6; + for(i = 0; i < ETHER_ADDR_LEN; i++) + dev->dev_addr[i] = inb(ioaddr + NE3210_SA_PROM + i); + printk("ne3210.c: NE3210 in EISA slot %d, media: %s, addr: %pM.\n", + edev->slot, ifmap[port_index], dev->dev_addr); + + /* Snarf the interrupt now. CFG file has them all listed as `edge' with share=NO */ + dev->irq = irq_map[(inb(ioaddr + NE3210_CFG2) >> 3) & 0x07]; + printk("ne3210.c: using IRQ %d, ", dev->irq); + + retval = request_irq(dev->irq, ei_interrupt, 0, DRV_NAME, dev); + if (retval) { + printk (" unable to get IRQ %d.\n", dev->irq); + goto out2; + } + + phys_mem = shmem_map[inb(ioaddr + NE3210_CFG2) & 0x07] * 0x1000; + + /* + BEWARE!! Some dain-bramaged EISA SCUs will allow you to put + the card mem within the region covered by `normal' RAM !!! + */ + if (phys_mem > 1024*1024) { /* phys addr > 1MB */ + if (phys_mem < virt_to_phys(high_memory)) { + printk(KERN_CRIT "ne3210.c: Card RAM overlaps with normal memory!!!\n"); + printk(KERN_CRIT "ne3210.c: Use EISA SCU to set card memory below 1MB,\n"); + printk(KERN_CRIT "ne3210.c: or to an address above 0x%llx.\n", + (u64)virt_to_phys(high_memory)); + printk(KERN_CRIT "ne3210.c: Driver NOT installed.\n"); + retval = -EINVAL; + goto out3; + } + } + + if (!request_mem_region (phys_mem, NE3210_STOP_PG*0x100, DRV_NAME)) { + printk ("ne3210.c: Unable to request shared memory at physical address %#lx\n", + phys_mem); + goto out3; + } + + printk("%dkB memory at physical address %#lx\n", + NE3210_STOP_PG/4, phys_mem); + + ei_status.mem = ioremap(phys_mem, NE3210_STOP_PG*0x100); + if (!ei_status.mem) { + printk(KERN_ERR "ne3210.c: Unable to remap card memory !!\n"); + printk(KERN_ERR "ne3210.c: Driver NOT installed.\n"); + retval = -EAGAIN; + goto out4; + } + printk("ne3210.c: remapped %dkB card memory to virtual address %p\n", + NE3210_STOP_PG/4, ei_status.mem); + dev->mem_start = (unsigned long)ei_status.mem; + dev->mem_end = dev->mem_start + (NE3210_STOP_PG - NE3210_START_PG)*256; + + /* The 8390 offset is zero for the NE3210 */ + dev->base_addr = ioaddr; + + ei_status.name = "NE3210"; + ei_status.tx_start_page = NE3210_START_PG; + ei_status.rx_start_page = NE3210_START_PG + TX_PAGES; + ei_status.stop_page = NE3210_STOP_PG; + ei_status.word16 = 1; + ei_status.priv = phys_mem; + + if (ei_debug > 0) + printk("ne3210 loaded.\n"); + + ei_status.reset_8390 = &ne3210_reset_8390; + ei_status.block_input = &ne3210_block_input; + ei_status.block_output = &ne3210_block_output; + ei_status.get_8390_hdr = &ne3210_get_8390_hdr; + + dev->netdev_ops = &ei_netdev_ops; + + dev->if_port = ifmap_val[port_index]; + + if ((retval = register_netdev (dev))) + goto out5; + + NS8390_init(dev, 0); + return 0; + + out5: + iounmap(ei_status.mem); + out4: + release_mem_region (phys_mem, NE3210_STOP_PG*0x100); + out3: + free_irq (dev->irq, dev); + out2: + release_region (ioaddr + NE3210_CFG1, NE3210_CFG_EXTENT); + out1: + release_region (ioaddr, NE3210_IO_EXTENT); + out: + free_netdev (dev); + + return retval; +} + +static int __devexit ne3210_eisa_remove (struct device *device) +{ + struct net_device *dev = dev_get_drvdata(device); + unsigned long ioaddr = to_eisa_device (device)->base_addr; + + unregister_netdev (dev); + iounmap(ei_status.mem); + release_mem_region (ei_status.priv, NE3210_STOP_PG*0x100); + free_irq (dev->irq, dev); + release_region (ioaddr + NE3210_CFG1, NE3210_CFG_EXTENT); + release_region (ioaddr, NE3210_IO_EXTENT); + free_netdev (dev); + + return 0; +} + +/* + * Reset by toggling the "Board Enable" bits (bit 2 and 0). + */ + +static void ne3210_reset_8390(struct net_device *dev) +{ + unsigned short ioaddr = dev->base_addr; + + outb(0x04, ioaddr + NE3210_RESET_PORT); + if (ei_debug > 1) printk("%s: resetting the NE3210...", dev->name); + + mdelay(2); + + ei_status.txing = 0; + outb(0x01, ioaddr + NE3210_RESET_PORT); + if (ei_debug > 1) printk("reset done\n"); +} + +/* + * Note: In the following three functions is the implicit assumption + * that the associated memcpy will only use "rep; movsl" as long as + * we keep the counts as some multiple of doublewords. This is a + * requirement of the hardware, and also prevents us from using + * eth_io_copy_and_sum() since we can't guarantee it will limit + * itself to doubleword access. + */ + +/* + * Grab the 8390 specific header. Similar to the block_input routine, but + * we don't need to be concerned with ring wrap as the header will be at + * the start of a page, so we optimize accordingly. (A single doubleword.) + */ + +static void +ne3210_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page) +{ + void __iomem *hdr_start = ei_status.mem + ((ring_page - NE3210_START_PG)<<8); + memcpy_fromio(hdr, hdr_start, sizeof(struct e8390_pkt_hdr)); + hdr->count = (hdr->count + 3) & ~3; /* Round up allocation. */ +} + +/* + * Block input and output are easy on shared memory ethercards, the only + * complication is when the ring buffer wraps. The count will already + * be rounded up to a doubleword value via ne3210_get_8390_hdr() above. + */ + +static void ne3210_block_input(struct net_device *dev, int count, struct sk_buff *skb, + int ring_offset) +{ + void __iomem *start = ei_status.mem + ring_offset - NE3210_START_PG*256; + + if (ring_offset + count > NE3210_STOP_PG*256) { + /* Packet wraps over end of ring buffer. */ + int semi_count = NE3210_STOP_PG*256 - ring_offset; + memcpy_fromio(skb->data, start, semi_count); + count -= semi_count; + memcpy_fromio(skb->data + semi_count, + ei_status.mem + TX_PAGES*256, count); + } else { + /* Packet is in one chunk. */ + memcpy_fromio(skb->data, start, count); + } +} + +static void ne3210_block_output(struct net_device *dev, int count, + const unsigned char *buf, int start_page) +{ + void __iomem *shmem = ei_status.mem + ((start_page - NE3210_START_PG)<<8); + + count = (count + 3) & ~3; /* Round up to doubleword */ + memcpy_toio(shmem, buf, count); +} + +static struct eisa_device_id ne3210_ids[] = { + { "EGL0101" }, + { "NVL1801" }, + { "" }, +}; +MODULE_DEVICE_TABLE(eisa, ne3210_ids); + +static struct eisa_driver ne3210_eisa_driver = { + .id_table = ne3210_ids, + .driver = { + .name = "ne3210", + .probe = ne3210_eisa_probe, + .remove = __devexit_p (ne3210_eisa_remove), + }, +}; + +MODULE_DESCRIPTION("NE3210 EISA Ethernet driver"); +MODULE_LICENSE("GPL"); +MODULE_DEVICE_TABLE(eisa, ne3210_ids); + +static int ne3210_init(void) +{ + return eisa_driver_register (&ne3210_eisa_driver); +} + +static void ne3210_cleanup(void) +{ + eisa_driver_unregister (&ne3210_eisa_driver); +} + +module_init (ne3210_init); +module_exit (ne3210_cleanup); diff --git a/drivers/net/ethernet/8390/pcnet_cs.c b/drivers/net/ethernet/8390/pcnet_cs.c new file mode 100644 index 000000000000..40107614b5dc --- /dev/null +++ b/drivers/net/ethernet/8390/pcnet_cs.c @@ -0,0 +1,1710 @@ +/*====================================================================== + + A PCMCIA ethernet driver for NS8390-based cards + + This driver supports the D-Link DE-650 and Linksys EthernetCard + cards, the newer D-Link and Linksys combo cards, Accton EN2212 + cards, the RPTI EP400, and the PreMax PE-200 in non-shared-memory + mode, and the IBM Credit Card Adapter, the NE4100, the Thomas + Conrad ethernet card, and the Kingston KNE-PCM/x in shared-memory + mode. It will also handle the Socket EA card in either mode. + + Copyright (C) 1999 David A. Hinds -- dahinds@users.sourceforge.net + + pcnet_cs.c 1.153 2003/11/09 18:53:09 + + The network driver code is based on Donald Becker's NE2000 code: + + Written 1992,1993 by Donald Becker. + Copyright 1993 United States Government as represented by the + Director, National Security Agency. This software may be used and + distributed according to the terms of the GNU General Public License, + incorporated herein by reference. + Donald Becker may be reached at becker@scyld.com + + Based also on Keith Moore's changes to Don Becker's code, for IBM + CCAE support. Drivers merged back together, and shared-memory + Socket EA support added, by Ken Raeburn, September 1995. + +======================================================================*/ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/ptrace.h> +#include <linux/string.h> +#include <linux/timer.h> +#include <linux/delay.h> +#include <linux/netdevice.h> +#include <linux/log2.h> +#include <linux/etherdevice.h> +#include <linux/mii.h> +#include "8390.h" + +#include <pcmcia/cistpl.h> +#include <pcmcia/ciscode.h> +#include <pcmcia/ds.h> +#include <pcmcia/cisreg.h> + +#include <asm/io.h> +#include <asm/system.h> +#include <asm/byteorder.h> +#include <asm/uaccess.h> + +#define PCNET_CMD 0x00 +#define PCNET_DATAPORT 0x10 /* NatSemi-defined port window offset. */ +#define PCNET_RESET 0x1f /* Issue a read to reset, a write to clear. */ +#define PCNET_MISC 0x18 /* For IBM CCAE and Socket EA cards */ + +#define PCNET_START_PG 0x40 /* First page of TX buffer */ +#define PCNET_STOP_PG 0x80 /* Last page +1 of RX ring */ + +/* Socket EA cards have a larger packet buffer */ +#define SOCKET_START_PG 0x01 +#define SOCKET_STOP_PG 0xff + +#define PCNET_RDC_TIMEOUT (2*HZ/100) /* Max wait in jiffies for Tx RDC */ + +static const char *if_names[] = { "auto", "10baseT", "10base2"}; + + +/*====================================================================*/ + +/* Module parameters */ + +MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>"); +MODULE_DESCRIPTION("NE2000 compatible PCMCIA ethernet driver"); +MODULE_LICENSE("GPL"); + +#define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0) + +INT_MODULE_PARM(if_port, 1); /* Transceiver type */ +INT_MODULE_PARM(use_big_buf, 1); /* use 64K packet buffer? */ +INT_MODULE_PARM(mem_speed, 0); /* shared mem speed, in ns */ +INT_MODULE_PARM(delay_output, 0); /* pause after xmit? */ +INT_MODULE_PARM(delay_time, 4); /* in usec */ +INT_MODULE_PARM(use_shmem, -1); /* use shared memory? */ +INT_MODULE_PARM(full_duplex, 0); /* full duplex? */ + +/* Ugh! Let the user hardwire the hardware address for queer cards */ +static int hw_addr[6] = { 0, /* ... */ }; +module_param_array(hw_addr, int, NULL, 0); + +/*====================================================================*/ + +static void mii_phy_probe(struct net_device *dev); +static int pcnet_config(struct pcmcia_device *link); +static void pcnet_release(struct pcmcia_device *link); +static int pcnet_open(struct net_device *dev); +static int pcnet_close(struct net_device *dev); +static int ei_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); +static irqreturn_t ei_irq_wrapper(int irq, void *dev_id); +static void ei_watchdog(u_long arg); +static void pcnet_reset_8390(struct net_device *dev); +static int set_config(struct net_device *dev, struct ifmap *map); +static int setup_shmem_window(struct pcmcia_device *link, int start_pg, + int stop_pg, int cm_offset); +static int setup_dma_config(struct pcmcia_device *link, int start_pg, + int stop_pg); + +static void pcnet_detach(struct pcmcia_device *p_dev); + +/*====================================================================*/ + +typedef struct hw_info_t { + u_int offset; + u_char a0, a1, a2; + u_int flags; +} hw_info_t; + +#define DELAY_OUTPUT 0x01 +#define HAS_MISC_REG 0x02 +#define USE_BIG_BUF 0x04 +#define HAS_IBM_MISC 0x08 +#define IS_DL10019 0x10 +#define IS_DL10022 0x20 +#define HAS_MII 0x40 +#define USE_SHMEM 0x80 /* autodetected */ + +#define AM79C9XX_HOME_PHY 0x00006B90 /* HomePNA PHY */ +#define AM79C9XX_ETH_PHY 0x00006B70 /* 10baseT PHY */ +#define MII_PHYID_REV_MASK 0xfffffff0 +#define MII_PHYID_REG1 0x02 +#define MII_PHYID_REG2 0x03 + +static hw_info_t hw_info[] = { + { /* Accton EN2212 */ 0x0ff0, 0x00, 0x00, 0xe8, DELAY_OUTPUT }, + { /* Allied Telesis LA-PCM */ 0x0ff0, 0x00, 0x00, 0xf4, 0 }, + { /* APEX MultiCard */ 0x03f4, 0x00, 0x20, 0xe5, 0 }, + { /* ASANTE FriendlyNet */ 0x4910, 0x00, 0x00, 0x94, + DELAY_OUTPUT | HAS_IBM_MISC }, + { /* Danpex EN-6200P2 */ 0x0110, 0x00, 0x40, 0xc7, 0 }, + { /* DataTrek NetCard */ 0x0ff0, 0x00, 0x20, 0xe8, 0 }, + { /* Dayna CommuniCard E */ 0x0110, 0x00, 0x80, 0x19, 0 }, + { /* D-Link DE-650 */ 0x0040, 0x00, 0x80, 0xc8, 0 }, + { /* EP-210 Ethernet */ 0x0110, 0x00, 0x40, 0x33, 0 }, + { /* EP4000 Ethernet */ 0x01c0, 0x00, 0x00, 0xb4, 0 }, + { /* Epson EEN10B */ 0x0ff0, 0x00, 0x00, 0x48, + HAS_MISC_REG | HAS_IBM_MISC }, + { /* ELECOM Laneed LD-CDWA */ 0xb8, 0x08, 0x00, 0x42, 0 }, + { /* Hypertec Ethernet */ 0x01c0, 0x00, 0x40, 0x4c, 0 }, + { /* IBM CCAE */ 0x0ff0, 0x08, 0x00, 0x5a, + HAS_MISC_REG | HAS_IBM_MISC }, + { /* IBM CCAE */ 0x0ff0, 0x00, 0x04, 0xac, + HAS_MISC_REG | HAS_IBM_MISC }, + { /* IBM CCAE */ 0x0ff0, 0x00, 0x06, 0x29, + HAS_MISC_REG | HAS_IBM_MISC }, + { /* IBM FME */ 0x0374, 0x08, 0x00, 0x5a, + HAS_MISC_REG | HAS_IBM_MISC }, + { /* IBM FME */ 0x0374, 0x00, 0x04, 0xac, + HAS_MISC_REG | HAS_IBM_MISC }, + { /* Kansai KLA-PCM/T */ 0x0ff0, 0x00, 0x60, 0x87, + HAS_MISC_REG | HAS_IBM_MISC }, + { /* NSC DP83903 */ 0x0374, 0x08, 0x00, 0x17, + HAS_MISC_REG | HAS_IBM_MISC }, + { /* NSC DP83903 */ 0x0374, 0x00, 0xc0, 0xa8, + HAS_MISC_REG | HAS_IBM_MISC }, + { /* NSC DP83903 */ 0x0374, 0x00, 0xa0, 0xb0, + HAS_MISC_REG | HAS_IBM_MISC }, + { /* NSC DP83903 */ 0x0198, 0x00, 0x20, 0xe0, + HAS_MISC_REG | HAS_IBM_MISC }, + { /* I-O DATA PCLA/T */ 0x0ff0, 0x00, 0xa0, 0xb0, 0 }, + { /* Katron PE-520 */ 0x0110, 0x00, 0x40, 0xf6, 0 }, + { /* Kingston KNE-PCM/x */ 0x0ff0, 0x00, 0xc0, 0xf0, + HAS_MISC_REG | HAS_IBM_MISC }, + { /* Kingston KNE-PCM/x */ 0x0ff0, 0xe2, 0x0c, 0x0f, + HAS_MISC_REG | HAS_IBM_MISC }, + { /* Kingston KNE-PC2 */ 0x0180, 0x00, 0xc0, 0xf0, 0 }, + { /* Maxtech PCN2000 */ 0x5000, 0x00, 0x00, 0xe8, 0 }, + { /* NDC Instant-Link */ 0x003a, 0x00, 0x80, 0xc6, 0 }, + { /* NE2000 Compatible */ 0x0ff0, 0x00, 0xa0, 0x0c, 0 }, + { /* Network General Sniffer */ 0x0ff0, 0x00, 0x00, 0x65, + HAS_MISC_REG | HAS_IBM_MISC }, + { /* Panasonic VEL211 */ 0x0ff0, 0x00, 0x80, 0x45, + HAS_MISC_REG | HAS_IBM_MISC }, + { /* PreMax PE-200 */ 0x07f0, 0x00, 0x20, 0xe0, 0 }, + { /* RPTI EP400 */ 0x0110, 0x00, 0x40, 0x95, 0 }, + { /* SCM Ethernet */ 0x0ff0, 0x00, 0x20, 0xcb, 0 }, + { /* Socket EA */ 0x4000, 0x00, 0xc0, 0x1b, + DELAY_OUTPUT | HAS_MISC_REG | USE_BIG_BUF }, + { /* Socket LP-E CF+ */ 0x01c0, 0x00, 0xc0, 0x1b, 0 }, + { /* SuperSocket RE450T */ 0x0110, 0x00, 0xe0, 0x98, 0 }, + { /* Volktek NPL-402CT */ 0x0060, 0x00, 0x40, 0x05, 0 }, + { /* NEC PC-9801N-J12 */ 0x0ff0, 0x00, 0x00, 0x4c, 0 }, + { /* PCMCIA Technology OEM */ 0x01c8, 0x00, 0xa0, 0x0c, 0 } +}; + +#define NR_INFO ARRAY_SIZE(hw_info) + +static hw_info_t default_info = { 0, 0, 0, 0, 0 }; +static hw_info_t dl10019_info = { 0, 0, 0, 0, IS_DL10019|HAS_MII }; +static hw_info_t dl10022_info = { 0, 0, 0, 0, IS_DL10022|HAS_MII }; + +typedef struct pcnet_dev_t { + struct pcmcia_device *p_dev; + u_int flags; + void __iomem *base; + struct timer_list watchdog; + int stale, fast_poll; + u_char phy_id; + u_char eth_phy, pna_phy; + u_short link_status; + u_long mii_reset; +} pcnet_dev_t; + +static inline pcnet_dev_t *PRIV(struct net_device *dev) +{ + char *p = netdev_priv(dev); + return (pcnet_dev_t *)(p + sizeof(struct ei_device)); +} + +static const struct net_device_ops pcnet_netdev_ops = { + .ndo_open = pcnet_open, + .ndo_stop = pcnet_close, + .ndo_set_config = set_config, + .ndo_start_xmit = ei_start_xmit, + .ndo_get_stats = ei_get_stats, + .ndo_do_ioctl = ei_ioctl, + .ndo_set_multicast_list = ei_set_multicast_list, + .ndo_tx_timeout = ei_tx_timeout, + .ndo_change_mtu = eth_change_mtu, + .ndo_set_mac_address = eth_mac_addr, + .ndo_validate_addr = eth_validate_addr, +#ifdef CONFIG_NET_POLL_CONTROLLER + .ndo_poll_controller = ei_poll, +#endif +}; + +static int pcnet_probe(struct pcmcia_device *link) +{ + pcnet_dev_t *info; + struct net_device *dev; + + dev_dbg(&link->dev, "pcnet_attach()\n"); + + /* Create new ethernet device */ + dev = __alloc_ei_netdev(sizeof(pcnet_dev_t)); + if (!dev) return -ENOMEM; + info = PRIV(dev); + info->p_dev = link; + link->priv = dev; + + link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IO; + + dev->netdev_ops = &pcnet_netdev_ops; + + return pcnet_config(link); +} /* pcnet_attach */ + +static void pcnet_detach(struct pcmcia_device *link) +{ + struct net_device *dev = link->priv; + + dev_dbg(&link->dev, "pcnet_detach\n"); + + unregister_netdev(dev); + + pcnet_release(link); + + free_netdev(dev); +} /* pcnet_detach */ + +/*====================================================================== + + This probes for a card's hardware address, for card types that + encode this information in their CIS. + +======================================================================*/ + +static hw_info_t *get_hwinfo(struct pcmcia_device *link) +{ + struct net_device *dev = link->priv; + u_char __iomem *base, *virt; + int i, j; + + /* Allocate a small memory window */ + link->resource[2]->flags |= WIN_DATA_WIDTH_8|WIN_MEMORY_TYPE_AM|WIN_ENABLE; + link->resource[2]->start = 0; link->resource[2]->end = 0; + i = pcmcia_request_window(link, link->resource[2], 0); + if (i != 0) + return NULL; + + virt = ioremap(link->resource[2]->start, + resource_size(link->resource[2])); + for (i = 0; i < NR_INFO; i++) { + pcmcia_map_mem_page(link, link->resource[2], + hw_info[i].offset & ~(resource_size(link->resource[2])-1)); + base = &virt[hw_info[i].offset & (resource_size(link->resource[2])-1)]; + if ((readb(base+0) == hw_info[i].a0) && + (readb(base+2) == hw_info[i].a1) && + (readb(base+4) == hw_info[i].a2)) { + for (j = 0; j < 6; j++) + dev->dev_addr[j] = readb(base + (j<<1)); + break; + } + } + + iounmap(virt); + j = pcmcia_release_window(link, link->resource[2]); + return (i < NR_INFO) ? hw_info+i : NULL; +} /* get_hwinfo */ + +/*====================================================================== + + This probes for a card's hardware address by reading the PROM. + It checks the address against a list of known types, then falls + back to a simple NE2000 clone signature check. + +======================================================================*/ + +static hw_info_t *get_prom(struct pcmcia_device *link) +{ + struct net_device *dev = link->priv; + unsigned int ioaddr = dev->base_addr; + u_char prom[32]; + int i, j; + + /* This is lifted straight from drivers/net/ne.c */ + struct { + u_char value, offset; + } program_seq[] = { + {E8390_NODMA+E8390_PAGE0+E8390_STOP, E8390_CMD}, /* Select page 0*/ + {0x48, EN0_DCFG}, /* Set byte-wide (0x48) access. */ + {0x00, EN0_RCNTLO}, /* Clear the count regs. */ + {0x00, EN0_RCNTHI}, + {0x00, EN0_IMR}, /* Mask completion irq. */ + {0xFF, EN0_ISR}, + {E8390_RXOFF, EN0_RXCR}, /* 0x20 Set to monitor */ + {E8390_TXOFF, EN0_TXCR}, /* 0x02 and loopback mode. */ + {32, EN0_RCNTLO}, + {0x00, EN0_RCNTHI}, + {0x00, EN0_RSARLO}, /* DMA starting at 0x0000. */ + {0x00, EN0_RSARHI}, + {E8390_RREAD+E8390_START, E8390_CMD}, + }; + + pcnet_reset_8390(dev); + mdelay(10); + + for (i = 0; i < ARRAY_SIZE(program_seq); i++) + outb_p(program_seq[i].value, ioaddr + program_seq[i].offset); + + for (i = 0; i < 32; i++) + prom[i] = inb(ioaddr + PCNET_DATAPORT); + for (i = 0; i < NR_INFO; i++) { + if ((prom[0] == hw_info[i].a0) && + (prom[2] == hw_info[i].a1) && + (prom[4] == hw_info[i].a2)) + break; + } + if ((i < NR_INFO) || ((prom[28] == 0x57) && (prom[30] == 0x57))) { + for (j = 0; j < 6; j++) + dev->dev_addr[j] = prom[j<<1]; + return (i < NR_INFO) ? hw_info+i : &default_info; + } + return NULL; +} /* get_prom */ + +/*====================================================================== + + For DL10019 based cards, like the Linksys EtherFast + +======================================================================*/ + +static hw_info_t *get_dl10019(struct pcmcia_device *link) +{ + struct net_device *dev = link->priv; + int i; + u_char sum; + + for (sum = 0, i = 0x14; i < 0x1c; i++) + sum += inb_p(dev->base_addr + i); + if (sum != 0xff) + return NULL; + for (i = 0; i < 6; i++) + dev->dev_addr[i] = inb_p(dev->base_addr + 0x14 + i); + i = inb(dev->base_addr + 0x1f); + return ((i == 0x91)||(i == 0x99)) ? &dl10022_info : &dl10019_info; +} + +/*====================================================================== + + For Asix AX88190 based cards + +======================================================================*/ + +static hw_info_t *get_ax88190(struct pcmcia_device *link) +{ + struct net_device *dev = link->priv; + unsigned int ioaddr = dev->base_addr; + int i, j; + + /* Not much of a test, but the alternatives are messy */ + if (link->config_base != 0x03c0) + return NULL; + + outb_p(0x01, ioaddr + EN0_DCFG); /* Set word-wide access. */ + outb_p(0x00, ioaddr + EN0_RSARLO); /* DMA starting at 0x0400. */ + outb_p(0x04, ioaddr + EN0_RSARHI); + outb_p(E8390_RREAD+E8390_START, ioaddr + E8390_CMD); + + for (i = 0; i < 6; i += 2) { + j = inw(ioaddr + PCNET_DATAPORT); + dev->dev_addr[i] = j & 0xff; + dev->dev_addr[i+1] = j >> 8; + } + return NULL; +} + +/*====================================================================== + + This should be totally unnecessary... but when we can't figure + out the hardware address any other way, we'll let the user hard + wire it when the module is initialized. + +======================================================================*/ + +static hw_info_t *get_hwired(struct pcmcia_device *link) +{ + struct net_device *dev = link->priv; + int i; + + for (i = 0; i < 6; i++) + if (hw_addr[i] != 0) break; + if (i == 6) + return NULL; + + for (i = 0; i < 6; i++) + dev->dev_addr[i] = hw_addr[i]; + + return &default_info; +} /* get_hwired */ + +static int try_io_port(struct pcmcia_device *link) +{ + int j, ret; + link->resource[0]->flags &= ~IO_DATA_PATH_WIDTH; + link->resource[1]->flags &= ~IO_DATA_PATH_WIDTH; + if (link->resource[0]->end == 32) { + link->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO; + if (link->resource[1]->end > 0) { + /* for master/slave multifunction cards */ + link->resource[1]->flags |= IO_DATA_PATH_WIDTH_8; + } + } else { + /* This should be two 16-port windows */ + link->resource[0]->flags |= IO_DATA_PATH_WIDTH_8; + link->resource[1]->flags |= IO_DATA_PATH_WIDTH_16; + } + if (link->resource[0]->start == 0) { + for (j = 0; j < 0x400; j += 0x20) { + link->resource[0]->start = j ^ 0x300; + link->resource[1]->start = (j ^ 0x300) + 0x10; + link->io_lines = 16; + ret = pcmcia_request_io(link); + if (ret == 0) + return ret; + } + return ret; + } else { + return pcmcia_request_io(link); + } +} + +static int pcnet_confcheck(struct pcmcia_device *p_dev, void *priv_data) +{ + int *priv = priv_data; + int try = (*priv & 0x1); + + *priv &= (p_dev->resource[2]->end >= 0x4000) ? 0x10 : ~0x10; + + if (p_dev->config_index == 0) + return -EINVAL; + + if (p_dev->resource[0]->end + p_dev->resource[1]->end < 32) + return -EINVAL; + + if (try) + p_dev->io_lines = 16; + return try_io_port(p_dev); +} + +static hw_info_t *pcnet_try_config(struct pcmcia_device *link, + int *has_shmem, int try) +{ + struct net_device *dev = link->priv; + hw_info_t *local_hw_info; + pcnet_dev_t *info = PRIV(dev); + int priv = try; + int ret; + + ret = pcmcia_loop_config(link, pcnet_confcheck, &priv); + if (ret) { + dev_warn(&link->dev, "no useable port range found\n"); + return NULL; + } + *has_shmem = (priv & 0x10); + + if (!link->irq) + return NULL; + + if (resource_size(link->resource[1]) == 8) + link->config_flags |= CONF_ENABLE_SPKR; + + if ((link->manf_id == MANFID_IBM) && + (link->card_id == PRODID_IBM_HOME_AND_AWAY)) + link->config_index |= 0x10; + + ret = pcmcia_enable_device(link); + if (ret) + return NULL; + + dev->irq = link->irq; + dev->base_addr = link->resource[0]->start; + + if (info->flags & HAS_MISC_REG) { + if ((if_port == 1) || (if_port == 2)) + dev->if_port = if_port; + else + dev_notice(&link->dev, "invalid if_port requested\n"); + } else + dev->if_port = 0; + + if ((link->config_base == 0x03c0) && + (link->manf_id == 0x149) && (link->card_id == 0xc1ab)) { + dev_info(&link->dev, + "this is an AX88190 card - use axnet_cs instead.\n"); + return NULL; + } + + local_hw_info = get_hwinfo(link); + if (!local_hw_info) + local_hw_info = get_prom(link); + if (!local_hw_info) + local_hw_info = get_dl10019(link); + if (!local_hw_info) + local_hw_info = get_ax88190(link); + if (!local_hw_info) + local_hw_info = get_hwired(link); + + return local_hw_info; +} + +static int pcnet_config(struct pcmcia_device *link) +{ + struct net_device *dev = link->priv; + pcnet_dev_t *info = PRIV(dev); + int start_pg, stop_pg, cm_offset; + int has_shmem = 0; + hw_info_t *local_hw_info; + + dev_dbg(&link->dev, "pcnet_config\n"); + + local_hw_info = pcnet_try_config(link, &has_shmem, 0); + if (!local_hw_info) { + /* check whether forcing io_lines to 16 helps... */ + pcmcia_disable_device(link); + local_hw_info = pcnet_try_config(link, &has_shmem, 1); + if (local_hw_info == NULL) { + dev_notice(&link->dev, "unable to read hardware net" + " address for io base %#3lx\n", dev->base_addr); + goto failed; + } + } + + info->flags = local_hw_info->flags; + /* Check for user overrides */ + info->flags |= (delay_output) ? DELAY_OUTPUT : 0; + if ((link->manf_id == MANFID_SOCKET) && + ((link->card_id == PRODID_SOCKET_LPE) || + (link->card_id == PRODID_SOCKET_LPE_CF) || + (link->card_id == PRODID_SOCKET_EIO))) + info->flags &= ~USE_BIG_BUF; + if (!use_big_buf) + info->flags &= ~USE_BIG_BUF; + + if (info->flags & USE_BIG_BUF) { + start_pg = SOCKET_START_PG; + stop_pg = SOCKET_STOP_PG; + cm_offset = 0x10000; + } else { + start_pg = PCNET_START_PG; + stop_pg = PCNET_STOP_PG; + cm_offset = 0; + } + + /* has_shmem is ignored if use_shmem != -1 */ + if ((use_shmem == 0) || (!has_shmem && (use_shmem == -1)) || + (setup_shmem_window(link, start_pg, stop_pg, cm_offset) != 0)) + setup_dma_config(link, start_pg, stop_pg); + + ei_status.name = "NE2000"; + ei_status.word16 = 1; + ei_status.reset_8390 = pcnet_reset_8390; + + if (info->flags & (IS_DL10019|IS_DL10022)) + mii_phy_probe(dev); + + SET_NETDEV_DEV(dev, &link->dev); + + if (register_netdev(dev) != 0) { + pr_notice("register_netdev() failed\n"); + goto failed; + } + + if (info->flags & (IS_DL10019|IS_DL10022)) { + u_char id = inb(dev->base_addr + 0x1a); + netdev_info(dev, "NE2000 (DL100%d rev %02x): ", + (info->flags & IS_DL10022) ? 22 : 19, id); + if (info->pna_phy) + pr_cont("PNA, "); + } else { + netdev_info(dev, "NE2000 Compatible: "); + } + pr_cont("io %#3lx, irq %d,", dev->base_addr, dev->irq); + if (info->flags & USE_SHMEM) + pr_cont(" mem %#5lx,", dev->mem_start); + if (info->flags & HAS_MISC_REG) + pr_cont(" %s xcvr,", if_names[dev->if_port]); + pr_cont(" hw_addr %pM\n", dev->dev_addr); + return 0; + +failed: + pcnet_release(link); + return -ENODEV; +} /* pcnet_config */ + +static void pcnet_release(struct pcmcia_device *link) +{ + pcnet_dev_t *info = PRIV(link->priv); + + dev_dbg(&link->dev, "pcnet_release\n"); + + if (info->flags & USE_SHMEM) + iounmap(info->base); + + pcmcia_disable_device(link); +} + +static int pcnet_suspend(struct pcmcia_device *link) +{ + struct net_device *dev = link->priv; + + if (link->open) + netif_device_detach(dev); + + return 0; +} + +static int pcnet_resume(struct pcmcia_device *link) +{ + struct net_device *dev = link->priv; + + if (link->open) { + pcnet_reset_8390(dev); + NS8390_init(dev, 1); + netif_device_attach(dev); + } + + return 0; +} + + +/*====================================================================== + + MII interface support for DL10019 and DL10022 based cards + + On the DL10019, the MII IO direction bit is 0x10; on the DL10022 + it is 0x20. Setting both bits seems to work on both card types. + +======================================================================*/ + +#define DLINK_GPIO 0x1c +#define DLINK_DIAG 0x1d +#define DLINK_EEPROM 0x1e + +#define MDIO_SHIFT_CLK 0x80 +#define MDIO_DATA_OUT 0x40 +#define MDIO_DIR_WRITE 0x30 +#define MDIO_DATA_WRITE0 (MDIO_DIR_WRITE) +#define MDIO_DATA_WRITE1 (MDIO_DIR_WRITE | MDIO_DATA_OUT) +#define MDIO_DATA_READ 0x10 +#define MDIO_MASK 0x0f + +static void mdio_sync(unsigned int addr) +{ + int bits, mask = inb(addr) & MDIO_MASK; + for (bits = 0; bits < 32; bits++) { + outb(mask | MDIO_DATA_WRITE1, addr); + outb(mask | MDIO_DATA_WRITE1 | MDIO_SHIFT_CLK, addr); + } +} + +static int mdio_read(unsigned int addr, int phy_id, int loc) +{ + u_int cmd = (0x06<<10)|(phy_id<<5)|loc; + int i, retval = 0, mask = inb(addr) & MDIO_MASK; + + mdio_sync(addr); + for (i = 13; i >= 0; i--) { + int dat = (cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0; + outb(mask | dat, addr); + outb(mask | dat | MDIO_SHIFT_CLK, addr); + } + for (i = 19; i > 0; i--) { + outb(mask, addr); + retval = (retval << 1) | ((inb(addr) & MDIO_DATA_READ) != 0); + outb(mask | MDIO_SHIFT_CLK, addr); + } + return (retval>>1) & 0xffff; +} + +static void mdio_write(unsigned int addr, int phy_id, int loc, int value) +{ + u_int cmd = (0x05<<28)|(phy_id<<23)|(loc<<18)|(1<<17)|value; + int i, mask = inb(addr) & MDIO_MASK; + + mdio_sync(addr); + for (i = 31; i >= 0; i--) { + int dat = (cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0; + outb(mask | dat, addr); + outb(mask | dat | MDIO_SHIFT_CLK, addr); + } + for (i = 1; i >= 0; i--) { + outb(mask, addr); + outb(mask | MDIO_SHIFT_CLK, addr); + } +} + +/*====================================================================== + + EEPROM access routines for DL10019 and DL10022 based cards + +======================================================================*/ + +#define EE_EEP 0x40 +#define EE_ASIC 0x10 +#define EE_CS 0x08 +#define EE_CK 0x04 +#define EE_DO 0x02 +#define EE_DI 0x01 +#define EE_ADOT 0x01 /* DataOut for ASIC */ +#define EE_READ_CMD 0x06 + +#define DL19FDUPLX 0x0400 /* DL10019 Full duplex mode */ + +static int read_eeprom(unsigned int ioaddr, int location) +{ + int i, retval = 0; + unsigned int ee_addr = ioaddr + DLINK_EEPROM; + int read_cmd = location | (EE_READ_CMD << 8); + + outb(0, ee_addr); + outb(EE_EEP|EE_CS, ee_addr); + + /* Shift the read command bits out. */ + for (i = 10; i >= 0; i--) { + short dataval = (read_cmd & (1 << i)) ? EE_DO : 0; + outb_p(EE_EEP|EE_CS|dataval, ee_addr); + outb_p(EE_EEP|EE_CS|dataval|EE_CK, ee_addr); + } + outb(EE_EEP|EE_CS, ee_addr); + + for (i = 16; i > 0; i--) { + outb_p(EE_EEP|EE_CS | EE_CK, ee_addr); + retval = (retval << 1) | ((inb(ee_addr) & EE_DI) ? 1 : 0); + outb_p(EE_EEP|EE_CS, ee_addr); + } + + /* Terminate the EEPROM access. */ + outb(0, ee_addr); + return retval; +} + +/* + The internal ASIC registers can be changed by EEPROM READ access + with EE_ASIC bit set. + In ASIC mode, EE_ADOT is used to output the data to the ASIC. +*/ + +static void write_asic(unsigned int ioaddr, int location, short asic_data) +{ + int i; + unsigned int ee_addr = ioaddr + DLINK_EEPROM; + short dataval; + int read_cmd = location | (EE_READ_CMD << 8); + + asic_data |= read_eeprom(ioaddr, location); + + outb(0, ee_addr); + outb(EE_ASIC|EE_CS|EE_DI, ee_addr); + + read_cmd = read_cmd >> 1; + + /* Shift the read command bits out. */ + for (i = 9; i >= 0; i--) { + dataval = (read_cmd & (1 << i)) ? EE_DO : 0; + outb_p(EE_ASIC|EE_CS|EE_DI|dataval, ee_addr); + outb_p(EE_ASIC|EE_CS|EE_DI|dataval|EE_CK, ee_addr); + outb_p(EE_ASIC|EE_CS|EE_DI|dataval, ee_addr); + } + // sync + outb(EE_ASIC|EE_CS, ee_addr); + outb(EE_ASIC|EE_CS|EE_CK, ee_addr); + outb(EE_ASIC|EE_CS, ee_addr); + + for (i = 15; i >= 0; i--) { + dataval = (asic_data & (1 << i)) ? EE_ADOT : 0; + outb_p(EE_ASIC|EE_CS|dataval, ee_addr); + outb_p(EE_ASIC|EE_CS|dataval|EE_CK, ee_addr); + outb_p(EE_ASIC|EE_CS|dataval, ee_addr); + } + + /* Terminate the ASIC access. */ + outb(EE_ASIC|EE_DI, ee_addr); + outb(EE_ASIC|EE_DI| EE_CK, ee_addr); + outb(EE_ASIC|EE_DI, ee_addr); + + outb(0, ee_addr); +} + +/*====================================================================*/ + +static void set_misc_reg(struct net_device *dev) +{ + unsigned int nic_base = dev->base_addr; + pcnet_dev_t *info = PRIV(dev); + u_char tmp; + + if (info->flags & HAS_MISC_REG) { + tmp = inb_p(nic_base + PCNET_MISC) & ~3; + if (dev->if_port == 2) + tmp |= 1; + if (info->flags & USE_BIG_BUF) + tmp |= 2; + if (info->flags & HAS_IBM_MISC) + tmp |= 8; + outb_p(tmp, nic_base + PCNET_MISC); + } + if (info->flags & IS_DL10022) { + if (info->flags & HAS_MII) { + /* Advertise 100F, 100H, 10F, 10H */ + mdio_write(nic_base + DLINK_GPIO, info->eth_phy, 4, 0x01e1); + /* Restart MII autonegotiation */ + mdio_write(nic_base + DLINK_GPIO, info->eth_phy, 0, 0x0000); + mdio_write(nic_base + DLINK_GPIO, info->eth_phy, 0, 0x1200); + info->mii_reset = jiffies; + } else { + outb(full_duplex ? 4 : 0, nic_base + DLINK_DIAG); + } + } else if (info->flags & IS_DL10019) { + /* Advertise 100F, 100H, 10F, 10H */ + mdio_write(nic_base + DLINK_GPIO, info->eth_phy, 4, 0x01e1); + /* Restart MII autonegotiation */ + mdio_write(nic_base + DLINK_GPIO, info->eth_phy, 0, 0x0000); + mdio_write(nic_base + DLINK_GPIO, info->eth_phy, 0, 0x1200); + } +} + +/*====================================================================*/ + +static void mii_phy_probe(struct net_device *dev) +{ + pcnet_dev_t *info = PRIV(dev); + unsigned int mii_addr = dev->base_addr + DLINK_GPIO; + int i; + u_int tmp, phyid; + + for (i = 31; i >= 0; i--) { + tmp = mdio_read(mii_addr, i, 1); + if ((tmp == 0) || (tmp == 0xffff)) + continue; + tmp = mdio_read(mii_addr, i, MII_PHYID_REG1); + phyid = tmp << 16; + phyid |= mdio_read(mii_addr, i, MII_PHYID_REG2); + phyid &= MII_PHYID_REV_MASK; + netdev_dbg(dev, "MII at %d is 0x%08x\n", i, phyid); + if (phyid == AM79C9XX_HOME_PHY) { + info->pna_phy = i; + } else if (phyid != AM79C9XX_ETH_PHY) { + info->eth_phy = i; + } + } +} + +static int pcnet_open(struct net_device *dev) +{ + int ret; + pcnet_dev_t *info = PRIV(dev); + struct pcmcia_device *link = info->p_dev; + unsigned int nic_base = dev->base_addr; + + dev_dbg(&link->dev, "pcnet_open('%s')\n", dev->name); + + if (!pcmcia_dev_present(link)) + return -ENODEV; + + set_misc_reg(dev); + + outb_p(0xFF, nic_base + EN0_ISR); /* Clear bogus intr. */ + ret = request_irq(dev->irq, ei_irq_wrapper, IRQF_SHARED, dev->name, dev); + if (ret) + return ret; + + link->open++; + + info->phy_id = info->eth_phy; + info->link_status = 0x00; + init_timer(&info->watchdog); + info->watchdog.function = ei_watchdog; + info->watchdog.data = (u_long)dev; + info->watchdog.expires = jiffies + HZ; + add_timer(&info->watchdog); + + return ei_open(dev); +} /* pcnet_open */ + +/*====================================================================*/ + +static int pcnet_close(struct net_device *dev) +{ + pcnet_dev_t *info = PRIV(dev); + struct pcmcia_device *link = info->p_dev; + + dev_dbg(&link->dev, "pcnet_close('%s')\n", dev->name); + + ei_close(dev); + free_irq(dev->irq, dev); + + link->open--; + netif_stop_queue(dev); + del_timer_sync(&info->watchdog); + + return 0; +} /* pcnet_close */ + +/*====================================================================== + + Hard reset the card. This used to pause for the same period that + a 8390 reset command required, but that shouldn't be necessary. + +======================================================================*/ + +static void pcnet_reset_8390(struct net_device *dev) +{ + unsigned int nic_base = dev->base_addr; + int i; + + ei_status.txing = ei_status.dmaing = 0; + + outb_p(E8390_NODMA+E8390_PAGE0+E8390_STOP, nic_base + E8390_CMD); + + outb(inb(nic_base + PCNET_RESET), nic_base + PCNET_RESET); + + for (i = 0; i < 100; i++) { + if ((inb_p(nic_base+EN0_ISR) & ENISR_RESET) != 0) + break; + udelay(100); + } + outb_p(ENISR_RESET, nic_base + EN0_ISR); /* Ack intr. */ + + if (i == 100) + netdev_err(dev, "pcnet_reset_8390() did not complete.\n"); + + set_misc_reg(dev); + +} /* pcnet_reset_8390 */ + +/*====================================================================*/ + +static int set_config(struct net_device *dev, struct ifmap *map) +{ + pcnet_dev_t *info = PRIV(dev); + if ((map->port != (u_char)(-1)) && (map->port != dev->if_port)) { + if (!(info->flags & HAS_MISC_REG)) + return -EOPNOTSUPP; + else if ((map->port < 1) || (map->port > 2)) + return -EINVAL; + dev->if_port = map->port; + netdev_info(dev, "switched to %s port\n", if_names[dev->if_port]); + NS8390_init(dev, 1); + } + return 0; +} + +/*====================================================================*/ + +static irqreturn_t ei_irq_wrapper(int irq, void *dev_id) +{ + struct net_device *dev = dev_id; + pcnet_dev_t *info; + irqreturn_t ret = ei_interrupt(irq, dev_id); + + if (ret == IRQ_HANDLED) { + info = PRIV(dev); + info->stale = 0; + } + return ret; +} + +static void ei_watchdog(u_long arg) +{ + struct net_device *dev = (struct net_device *)arg; + pcnet_dev_t *info = PRIV(dev); + unsigned int nic_base = dev->base_addr; + unsigned int mii_addr = nic_base + DLINK_GPIO; + u_short link; + + if (!netif_device_present(dev)) goto reschedule; + + /* Check for pending interrupt with expired latency timer: with + this, we can limp along even if the interrupt is blocked */ + if (info->stale++ && (inb_p(nic_base + EN0_ISR) & ENISR_ALL)) { + if (!info->fast_poll) + netdev_info(dev, "interrupt(s) dropped!\n"); + ei_irq_wrapper(dev->irq, dev); + info->fast_poll = HZ; + } + if (info->fast_poll) { + info->fast_poll--; + info->watchdog.expires = jiffies + 1; + add_timer(&info->watchdog); + return; + } + + if (!(info->flags & HAS_MII)) + goto reschedule; + + mdio_read(mii_addr, info->phy_id, 1); + link = mdio_read(mii_addr, info->phy_id, 1); + if (!link || (link == 0xffff)) { + if (info->eth_phy) { + info->phy_id = info->eth_phy = 0; + } else { + netdev_info(dev, "MII is missing!\n"); + info->flags &= ~HAS_MII; + } + goto reschedule; + } + + link &= 0x0004; + if (link != info->link_status) { + u_short p = mdio_read(mii_addr, info->phy_id, 5); + netdev_info(dev, "%s link beat\n", link ? "found" : "lost"); + if (link && (info->flags & IS_DL10022)) { + /* Disable collision detection on full duplex links */ + outb((p & 0x0140) ? 4 : 0, nic_base + DLINK_DIAG); + } else if (link && (info->flags & IS_DL10019)) { + /* Disable collision detection on full duplex links */ + write_asic(dev->base_addr, 4, (p & 0x140) ? DL19FDUPLX : 0); + } + if (link) { + if (info->phy_id == info->eth_phy) { + if (p) + netdev_info(dev, "autonegotiation complete: " + "%sbaseT-%cD selected\n", + ((p & 0x0180) ? "100" : "10"), + ((p & 0x0140) ? 'F' : 'H')); + else + netdev_info(dev, "link partner did not autonegotiate\n"); + } + NS8390_init(dev, 1); + } + info->link_status = link; + } + if (info->pna_phy && time_after(jiffies, info->mii_reset + 6*HZ)) { + link = mdio_read(mii_addr, info->eth_phy, 1) & 0x0004; + if (((info->phy_id == info->pna_phy) && link) || + ((info->phy_id != info->pna_phy) && !link)) { + /* isolate this MII and try flipping to the other one */ + mdio_write(mii_addr, info->phy_id, 0, 0x0400); + info->phy_id ^= info->pna_phy ^ info->eth_phy; + netdev_info(dev, "switched to %s transceiver\n", + (info->phy_id == info->eth_phy) ? "ethernet" : "PNA"); + mdio_write(mii_addr, info->phy_id, 0, + (info->phy_id == info->eth_phy) ? 0x1000 : 0); + info->link_status = 0; + info->mii_reset = jiffies; + } + } + +reschedule: + info->watchdog.expires = jiffies + HZ; + add_timer(&info->watchdog); +} + +/*====================================================================*/ + + +static int ei_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) +{ + pcnet_dev_t *info = PRIV(dev); + struct mii_ioctl_data *data = if_mii(rq); + unsigned int mii_addr = dev->base_addr + DLINK_GPIO; + + if (!(info->flags & (IS_DL10019|IS_DL10022))) + return -EINVAL; + + switch (cmd) { + case SIOCGMIIPHY: + data->phy_id = info->phy_id; + case SIOCGMIIREG: /* Read MII PHY register. */ + data->val_out = mdio_read(mii_addr, data->phy_id, data->reg_num & 0x1f); + return 0; + case SIOCSMIIREG: /* Write MII PHY register. */ + mdio_write(mii_addr, data->phy_id, data->reg_num & 0x1f, data->val_in); + return 0; + } + return -EOPNOTSUPP; +} + +/*====================================================================*/ + +static void dma_get_8390_hdr(struct net_device *dev, + struct e8390_pkt_hdr *hdr, + int ring_page) +{ + unsigned int nic_base = dev->base_addr; + + if (ei_status.dmaing) { + netdev_notice(dev, "DMAing conflict in dma_block_input." + "[DMAstat:%1x][irqlock:%1x]\n", + ei_status.dmaing, ei_status.irqlock); + return; + } + + ei_status.dmaing |= 0x01; + outb_p(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base + PCNET_CMD); + outb_p(sizeof(struct e8390_pkt_hdr), nic_base + EN0_RCNTLO); + outb_p(0, nic_base + EN0_RCNTHI); + outb_p(0, nic_base + EN0_RSARLO); /* On page boundary */ + outb_p(ring_page, nic_base + EN0_RSARHI); + outb_p(E8390_RREAD+E8390_START, nic_base + PCNET_CMD); + + insw(nic_base + PCNET_DATAPORT, hdr, + sizeof(struct e8390_pkt_hdr)>>1); + /* Fix for big endian systems */ + hdr->count = le16_to_cpu(hdr->count); + + outb_p(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */ + ei_status.dmaing &= ~0x01; +} + +/*====================================================================*/ + +static void dma_block_input(struct net_device *dev, int count, + struct sk_buff *skb, int ring_offset) +{ + unsigned int nic_base = dev->base_addr; + int xfer_count = count; + char *buf = skb->data; + + if ((ei_debug > 4) && (count != 4)) + netdev_dbg(dev, "[bi=%d]\n", count+4); + if (ei_status.dmaing) { + netdev_notice(dev, "DMAing conflict in dma_block_input." + "[DMAstat:%1x][irqlock:%1x]\n", + ei_status.dmaing, ei_status.irqlock); + return; + } + ei_status.dmaing |= 0x01; + outb_p(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base + PCNET_CMD); + outb_p(count & 0xff, nic_base + EN0_RCNTLO); + outb_p(count >> 8, nic_base + EN0_RCNTHI); + outb_p(ring_offset & 0xff, nic_base + EN0_RSARLO); + outb_p(ring_offset >> 8, nic_base + EN0_RSARHI); + outb_p(E8390_RREAD+E8390_START, nic_base + PCNET_CMD); + + insw(nic_base + PCNET_DATAPORT,buf,count>>1); + if (count & 0x01) + buf[count-1] = inb(nic_base + PCNET_DATAPORT), xfer_count++; + + /* This was for the ALPHA version only, but enough people have been + encountering problems that it is still here. */ +#ifdef PCMCIA_DEBUG + if (ei_debug > 4) { /* DMA termination address check... */ + int addr, tries = 20; + do { + /* DON'T check for 'inb_p(EN0_ISR) & ENISR_RDC' here + -- it's broken for Rx on some cards! */ + int high = inb_p(nic_base + EN0_RSARHI); + int low = inb_p(nic_base + EN0_RSARLO); + addr = (high << 8) + low; + if (((ring_offset + xfer_count) & 0xff) == (addr & 0xff)) + break; + } while (--tries > 0); + if (tries <= 0) + netdev_notice(dev, "RX transfer address mismatch," + "%#4.4x (expected) vs. %#4.4x (actual).\n", + ring_offset + xfer_count, addr); + } +#endif + outb_p(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */ + ei_status.dmaing &= ~0x01; +} /* dma_block_input */ + +/*====================================================================*/ + +static void dma_block_output(struct net_device *dev, int count, + const u_char *buf, const int start_page) +{ + unsigned int nic_base = dev->base_addr; + pcnet_dev_t *info = PRIV(dev); +#ifdef PCMCIA_DEBUG + int retries = 0; +#endif + u_long dma_start; + +#ifdef PCMCIA_DEBUG + if (ei_debug > 4) + netdev_dbg(dev, "[bo=%d]\n", count); +#endif + + /* Round the count up for word writes. Do we need to do this? + What effect will an odd byte count have on the 8390? + I should check someday. */ + if (count & 0x01) + count++; + if (ei_status.dmaing) { + netdev_notice(dev, "DMAing conflict in dma_block_output." + "[DMAstat:%1x][irqlock:%1x]\n", + ei_status.dmaing, ei_status.irqlock); + return; + } + ei_status.dmaing |= 0x01; + /* We should already be in page 0, but to be safe... */ + outb_p(E8390_PAGE0+E8390_START+E8390_NODMA, nic_base+PCNET_CMD); + +#ifdef PCMCIA_DEBUG + retry: +#endif + + outb_p(ENISR_RDC, nic_base + EN0_ISR); + + /* Now the normal output. */ + outb_p(count & 0xff, nic_base + EN0_RCNTLO); + outb_p(count >> 8, nic_base + EN0_RCNTHI); + outb_p(0x00, nic_base + EN0_RSARLO); + outb_p(start_page, nic_base + EN0_RSARHI); + + outb_p(E8390_RWRITE+E8390_START, nic_base + PCNET_CMD); + outsw(nic_base + PCNET_DATAPORT, buf, count>>1); + + dma_start = jiffies; + +#ifdef PCMCIA_DEBUG + /* This was for the ALPHA version only, but enough people have been + encountering problems that it is still here. */ + if (ei_debug > 4) { /* DMA termination address check... */ + int addr, tries = 20; + do { + int high = inb_p(nic_base + EN0_RSARHI); + int low = inb_p(nic_base + EN0_RSARLO); + addr = (high << 8) + low; + if ((start_page << 8) + count == addr) + break; + } while (--tries > 0); + if (tries <= 0) { + netdev_notice(dev, "Tx packet transfer address mismatch," + "%#4.4x (expected) vs. %#4.4x (actual).\n", + (start_page << 8) + count, addr); + if (retries++ == 0) + goto retry; + } + } +#endif + + while ((inb_p(nic_base + EN0_ISR) & ENISR_RDC) == 0) + if (time_after(jiffies, dma_start + PCNET_RDC_TIMEOUT)) { + netdev_notice(dev, "timeout waiting for Tx RDC.\n"); + pcnet_reset_8390(dev); + NS8390_init(dev, 1); + break; + } + + outb_p(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */ + if (info->flags & DELAY_OUTPUT) + udelay((long)delay_time); + ei_status.dmaing &= ~0x01; +} + +/*====================================================================*/ + +static int setup_dma_config(struct pcmcia_device *link, int start_pg, + int stop_pg) +{ + struct net_device *dev = link->priv; + + ei_status.tx_start_page = start_pg; + ei_status.rx_start_page = start_pg + TX_PAGES; + ei_status.stop_page = stop_pg; + + /* set up block i/o functions */ + ei_status.get_8390_hdr = dma_get_8390_hdr; + ei_status.block_input = dma_block_input; + ei_status.block_output = dma_block_output; + + return 0; +} + +/*====================================================================*/ + +static void copyin(void *dest, void __iomem *src, int c) +{ + u_short *d = dest; + u_short __iomem *s = src; + int odd; + + if (c <= 0) + return; + odd = (c & 1); c >>= 1; + + if (c) { + do { *d++ = __raw_readw(s++); } while (--c); + } + /* get last byte by fetching a word and masking */ + if (odd) + *((u_char *)d) = readw(s) & 0xff; +} + +static void copyout(void __iomem *dest, const void *src, int c) +{ + u_short __iomem *d = dest; + const u_short *s = src; + int odd; + + if (c <= 0) + return; + odd = (c & 1); c >>= 1; + + if (c) { + do { __raw_writew(*s++, d++); } while (--c); + } + /* copy last byte doing a read-modify-write */ + if (odd) + writew((readw(d) & 0xff00) | *(u_char *)s, d); +} + +/*====================================================================*/ + +static void shmem_get_8390_hdr(struct net_device *dev, + struct e8390_pkt_hdr *hdr, + int ring_page) +{ + void __iomem *xfer_start = ei_status.mem + (TX_PAGES<<8) + + (ring_page << 8) + - (ei_status.rx_start_page << 8); + + copyin(hdr, xfer_start, sizeof(struct e8390_pkt_hdr)); + /* Fix for big endian systems */ + hdr->count = le16_to_cpu(hdr->count); +} + +/*====================================================================*/ + +static void shmem_block_input(struct net_device *dev, int count, + struct sk_buff *skb, int ring_offset) +{ + void __iomem *base = ei_status.mem; + unsigned long offset = (TX_PAGES<<8) + ring_offset + - (ei_status.rx_start_page << 8); + char *buf = skb->data; + + if (offset + count > ei_status.priv) { + /* We must wrap the input move. */ + int semi_count = ei_status.priv - offset; + copyin(buf, base + offset, semi_count); + buf += semi_count; + offset = TX_PAGES<<8; + count -= semi_count; + } + copyin(buf, base + offset, count); +} + +/*====================================================================*/ + +static void shmem_block_output(struct net_device *dev, int count, + const u_char *buf, const int start_page) +{ + void __iomem *shmem = ei_status.mem + (start_page << 8); + shmem -= ei_status.tx_start_page << 8; + copyout(shmem, buf, count); +} + +/*====================================================================*/ + +static int setup_shmem_window(struct pcmcia_device *link, int start_pg, + int stop_pg, int cm_offset) +{ + struct net_device *dev = link->priv; + pcnet_dev_t *info = PRIV(dev); + int i, window_size, offset, ret; + + window_size = (stop_pg - start_pg) << 8; + if (window_size > 32 * 1024) + window_size = 32 * 1024; + + /* Make sure it's a power of two. */ + window_size = roundup_pow_of_two(window_size); + + /* Allocate a memory window */ + link->resource[3]->flags |= WIN_DATA_WIDTH_16|WIN_MEMORY_TYPE_CM|WIN_ENABLE; + link->resource[3]->flags |= WIN_USE_WAIT; + link->resource[3]->start = 0; link->resource[3]->end = window_size; + ret = pcmcia_request_window(link, link->resource[3], mem_speed); + if (ret) + goto failed; + + offset = (start_pg << 8) + cm_offset; + offset -= offset % window_size; + ret = pcmcia_map_mem_page(link, link->resource[3], offset); + if (ret) + goto failed; + + /* Try scribbling on the buffer */ + info->base = ioremap(link->resource[3]->start, + resource_size(link->resource[3])); + for (i = 0; i < (TX_PAGES<<8); i += 2) + __raw_writew((i>>1), info->base+offset+i); + udelay(100); + for (i = 0; i < (TX_PAGES<<8); i += 2) + if (__raw_readw(info->base+offset+i) != (i>>1)) break; + pcnet_reset_8390(dev); + if (i != (TX_PAGES<<8)) { + iounmap(info->base); + pcmcia_release_window(link, link->resource[3]); + info->base = NULL; + goto failed; + } + + ei_status.mem = info->base + offset; + ei_status.priv = resource_size(link->resource[3]); + dev->mem_start = (u_long)ei_status.mem; + dev->mem_end = dev->mem_start + resource_size(link->resource[3]); + + ei_status.tx_start_page = start_pg; + ei_status.rx_start_page = start_pg + TX_PAGES; + ei_status.stop_page = start_pg + ( + (resource_size(link->resource[3]) - offset) >> 8); + + /* set up block i/o functions */ + ei_status.get_8390_hdr = shmem_get_8390_hdr; + ei_status.block_input = shmem_block_input; + ei_status.block_output = shmem_block_output; + + info->flags |= USE_SHMEM; + return 0; + +failed: + return 1; +} + +/*====================================================================*/ + +static const struct pcmcia_device_id pcnet_ids[] = { + PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0057, 0x0021), + PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0104, 0x000a), + PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0105, 0xea15), + PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0143, 0x3341), + PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x0143, 0xc0ab), + PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x021b, 0x0101), + PCMCIA_PFC_DEVICE_MANF_CARD(0, 0x08a1, 0xc0ab), + PCMCIA_PFC_DEVICE_PROD_ID12(0, "AnyCom", "Fast Ethernet + 56K COMBO", 0x578ba6e7, 0xb0ac62c4), + PCMCIA_PFC_DEVICE_PROD_ID12(0, "ATKK", "LM33-PCM-T", 0xba9eb7e2, 0x077c174e), + PCMCIA_PFC_DEVICE_PROD_ID12(0, "D-Link", "DME336T", 0x1a424a1c, 0xb23897ff), + PCMCIA_PFC_DEVICE_PROD_ID12(0, "Grey Cell", "GCS3000", 0x2a151fac, 0x48b932ae), + PCMCIA_PFC_DEVICE_PROD_ID12(0, "Linksys", "EtherFast 10&100 + 56K PC Card (PCMLM56)", 0x0733cc81, 0xb3765033), + PCMCIA_PFC_DEVICE_PROD_ID12(0, "LINKSYS", "PCMLM336", 0xf7cb0b07, 0x7a821b58), + PCMCIA_PFC_DEVICE_PROD_ID12(0, "MICRO RESEARCH", "COMBO-L/M-336", 0xb2ced065, 0x3ced0555), + PCMCIA_PFC_DEVICE_PROD_ID12(0, "PCMCIAs", "ComboCard", 0xdcfe12d3, 0xcd8906cc), + PCMCIA_PFC_DEVICE_PROD_ID12(0, "PCMCIAs", "LanModem", 0xdcfe12d3, 0xc67c648f), + PCMCIA_MFC_DEVICE_PROD_ID12(0, "IBM", "Home and Away 28.8 PC Card ", 0xb569a6e5, 0x5bd4ff2c), + PCMCIA_MFC_DEVICE_PROD_ID12(0, "IBM", "Home and Away Credit Card Adapter", 0xb569a6e5, 0x4bdf15c3), + PCMCIA_MFC_DEVICE_PROD_ID12(0, "IBM", "w95 Home and Away Credit Card ", 0xb569a6e5, 0xae911c15), + PCMCIA_MFC_DEVICE_PROD_ID123(0, "APEX DATA", "MULTICARD", "ETHERNET-MODEM", 0x11c2da09, 0x7289dc5d, 0xaad95e1f), + PCMCIA_MFC_DEVICE_PROD_ID2(0, "FAX/Modem/Ethernet Combo Card ", 0x1ed59302), + PCMCIA_DEVICE_MANF_CARD(0x0057, 0x1004), + PCMCIA_DEVICE_MANF_CARD(0x0104, 0x000d), + PCMCIA_DEVICE_MANF_CARD(0x0104, 0x0075), + PCMCIA_DEVICE_MANF_CARD(0x0104, 0x0145), + PCMCIA_DEVICE_MANF_CARD(0x0149, 0x0230), + PCMCIA_DEVICE_MANF_CARD(0x0149, 0x4530), + PCMCIA_DEVICE_MANF_CARD(0x0149, 0xc1ab), + PCMCIA_DEVICE_MANF_CARD(0x0186, 0x0110), + PCMCIA_DEVICE_MANF_CARD(0x01bf, 0x8041), + PCMCIA_DEVICE_MANF_CARD(0x0213, 0x2452), + PCMCIA_DEVICE_MANF_CARD(0x026f, 0x0300), + PCMCIA_DEVICE_MANF_CARD(0x026f, 0x0307), + PCMCIA_DEVICE_MANF_CARD(0x026f, 0x030a), + PCMCIA_DEVICE_MANF_CARD(0x0274, 0x1103), + PCMCIA_DEVICE_MANF_CARD(0x0274, 0x1121), + PCMCIA_DEVICE_PROD_ID12("2408LAN", "Ethernet", 0x352fff7f, 0x00b2e941), + PCMCIA_DEVICE_PROD_ID1234("Socket", "CF 10/100 Ethernet Card", "Revision B", "05/11/06", 0xb38bcc2e, 0x4de88352, 0xeaca6c8d, 0x7e57c22e), + PCMCIA_DEVICE_PROD_ID123("Cardwell", "PCMCIA", "ETHERNET", 0x9533672e, 0x281f1c5d, 0x3ff7175b), + PCMCIA_DEVICE_PROD_ID123("CNet ", "CN30BC", "ETHERNET", 0x9fe55d3d, 0x85601198, 0x3ff7175b), + PCMCIA_DEVICE_PROD_ID123("Digital", "Ethernet", "Adapter", 0x9999ab35, 0x00b2e941, 0x4b0d829e), + PCMCIA_DEVICE_PROD_ID123("Edimax Technology Inc.", "PCMCIA", "Ethernet Card", 0x738a0019, 0x281f1c5d, 0x5e9d92c0), + PCMCIA_DEVICE_PROD_ID123("EFA ", "EFA207", "ETHERNET", 0x3d294be4, 0xeb9aab6c, 0x3ff7175b), + PCMCIA_DEVICE_PROD_ID123("I-O DATA", "PCLA", "ETHERNET", 0x1d55d7ec, 0xe4c64d34, 0x3ff7175b), + PCMCIA_DEVICE_PROD_ID123("IO DATA", "PCLATE", "ETHERNET", 0x547e66dc, 0x6b260753, 0x3ff7175b), + PCMCIA_DEVICE_PROD_ID123("KingMax Technology Inc.", "EN10-T2", "PCMCIA Ethernet Card", 0x932b7189, 0x699e4436, 0x6f6652e0), + PCMCIA_DEVICE_PROD_ID123("PCMCIA", "PCMCIA-ETHERNET-CARD", "UE2216", 0x281f1c5d, 0xd4cd2f20, 0xb87add82), + PCMCIA_DEVICE_PROD_ID123("PCMCIA", "PCMCIA-ETHERNET-CARD", "UE2620", 0x281f1c5d, 0xd4cd2f20, 0x7d3d83a8), + PCMCIA_DEVICE_PROD_ID1("2412LAN", 0x67f236ab), + PCMCIA_DEVICE_PROD_ID12("ACCTON", "EN2212", 0xdfc6b5b2, 0xcb112a11), + PCMCIA_DEVICE_PROD_ID12("ACCTON", "EN2216-PCMCIA-ETHERNET", 0xdfc6b5b2, 0x5542bfff), + PCMCIA_DEVICE_PROD_ID12("Allied Telesis, K.K.", "CentreCOM LA100-PCM-T V2 100/10M LAN PC Card", 0xbb7fbdd7, 0xcd91cc68), + PCMCIA_DEVICE_PROD_ID12("Allied Telesis K.K.", "LA100-PCM V2", 0x36634a66, 0xc6d05997), + PCMCIA_DEVICE_PROD_ID12("Allied Telesis, K.K.", "CentreCOM LA-PCM_V2", 0xbb7fBdd7, 0x28e299f8), + PCMCIA_DEVICE_PROD_ID12("Allied Telesis K.K.", "LA-PCM V3", 0x36634a66, 0x62241d96), + PCMCIA_DEVICE_PROD_ID12("AmbiCom", "AMB8010", 0x5070a7f9, 0x82f96e96), + PCMCIA_DEVICE_PROD_ID12("AmbiCom", "AMB8610", 0x5070a7f9, 0x86741224), + PCMCIA_DEVICE_PROD_ID12("AmbiCom Inc", "AMB8002", 0x93b15570, 0x75ec3efb), + PCMCIA_DEVICE_PROD_ID12("AmbiCom Inc", "AMB8002T", 0x93b15570, 0x461c5247), + PCMCIA_DEVICE_PROD_ID12("AmbiCom Inc", "AMB8010", 0x93b15570, 0x82f96e96), + PCMCIA_DEVICE_PROD_ID12("AnyCom", "ECO Ethernet", 0x578ba6e7, 0x0a9888c1), + PCMCIA_DEVICE_PROD_ID12("AnyCom", "ECO Ethernet 10/100", 0x578ba6e7, 0x939fedbd), + PCMCIA_DEVICE_PROD_ID12("AROWANA", "PCMCIA Ethernet LAN Card", 0x313adbc8, 0x08d9f190), + PCMCIA_DEVICE_PROD_ID12("ASANTE", "FriendlyNet PC Card", 0x3a7ade0f, 0x41c64504), + PCMCIA_DEVICE_PROD_ID12("Billionton", "LNT-10TB", 0x552ab682, 0xeeb1ba6a), + PCMCIA_DEVICE_PROD_ID12("CF", "10Base-Ethernet", 0x44ebf863, 0x93ae4d79), + PCMCIA_DEVICE_PROD_ID12("CNet", "CN40BC Ethernet", 0xbc477dde, 0xfba775a7), + PCMCIA_DEVICE_PROD_ID12("COMPU-SHACK", "BASEline PCMCIA 10 MBit Ethernetadapter", 0xfa2e424d, 0xe9190d8a), + PCMCIA_DEVICE_PROD_ID12("COMPU-SHACK", "FASTline PCMCIA 10/100 Fast-Ethernet", 0xfa2e424d, 0x3953d9b9), + PCMCIA_DEVICE_PROD_ID12("CONTEC", "C-NET(PC)C-10L", 0x21cab552, 0xf6f90722), + PCMCIA_DEVICE_PROD_ID12("corega", "FEther PCC-TXF", 0x0a21501a, 0xa51564a2), + PCMCIA_DEVICE_PROD_ID12("corega", "Ether CF-TD", 0x0a21501a, 0x6589340a), + PCMCIA_DEVICE_PROD_ID12("corega K.K.", "corega Ether CF-TD LAN Card", 0x5261440f, 0x8797663b), + PCMCIA_DEVICE_PROD_ID12("corega K.K.", "corega EtherII PCC-T", 0x5261440f, 0xfa9d85bd), + PCMCIA_DEVICE_PROD_ID12("corega K.K.", "corega EtherII PCC-TD", 0x5261440f, 0xc49bd73d), + PCMCIA_DEVICE_PROD_ID12("Corega K.K.", "corega EtherII PCC-TD", 0xd4fdcbd8, 0xc49bd73d), + PCMCIA_DEVICE_PROD_ID12("corega K.K.", "corega Ether PCC-T", 0x5261440f, 0x6705fcaa), + PCMCIA_DEVICE_PROD_ID12("corega K.K.", "corega Ether PCC-TD", 0x5261440f, 0x47d5ca83), + PCMCIA_DEVICE_PROD_ID12("corega K.K.", "corega FastEther PCC-TX", 0x5261440f, 0x485e85d9), + PCMCIA_DEVICE_PROD_ID12("Corega,K.K.", "Ethernet LAN Card", 0x110d26d9, 0x9fd2f0a2), + PCMCIA_DEVICE_PROD_ID12("corega,K.K.", "Ethernet LAN Card", 0x9791a90e, 0x9fd2f0a2), + PCMCIA_DEVICE_PROD_ID12("corega K.K.", "(CG-LAPCCTXD)", 0x5261440f, 0x73ec0d88), + PCMCIA_DEVICE_PROD_ID12("CouplerlessPCMCIA", "100BASE", 0xee5af0ad, 0x7c2add04), + PCMCIA_DEVICE_PROD_ID12("CyQ've", "ELA-010", 0x77008979, 0x9d8d445d), + PCMCIA_DEVICE_PROD_ID12("CyQ've", "ELA-110E 10/100M LAN Card", 0x77008979, 0xfd184814), + PCMCIA_DEVICE_PROD_ID12("DataTrek.", "NetCard ", 0x5cd66d9d, 0x84697ce0), + PCMCIA_DEVICE_PROD_ID12("Dayna Communications, Inc.", "CommuniCard E", 0x0c629325, 0xb4e7dbaf), + PCMCIA_DEVICE_PROD_ID12("Digicom", "Palladio LAN 10/100", 0x697403d8, 0xe160b995), + PCMCIA_DEVICE_PROD_ID12("Digicom", "Palladio LAN 10/100 Dongless", 0x697403d8, 0xa6d3b233), + PCMCIA_DEVICE_PROD_ID12("DIGITAL", "DEPCM-XX", 0x69616cb3, 0xe600e76e), + PCMCIA_DEVICE_PROD_ID12("D-Link", "DE-650", 0x1a424a1c, 0xf28c8398), + PCMCIA_DEVICE_PROD_ID12("D-Link", "DE-660", 0x1a424a1c, 0xd9a1d05b), + PCMCIA_DEVICE_PROD_ID12("D-Link", "DE-660+", 0x1a424a1c, 0x50dcd0ec), + PCMCIA_DEVICE_PROD_ID12("D-Link", "DFE-650", 0x1a424a1c, 0x0f0073f9), + PCMCIA_DEVICE_PROD_ID12("Dual Speed", "10/100 PC Card", 0x725b842d, 0xf1efee84), + PCMCIA_DEVICE_PROD_ID12("Dual Speed", "10/100 Port Attached PC Card", 0x725b842d, 0x2db1f8e9), + PCMCIA_DEVICE_PROD_ID12("Dynalink", "L10BC", 0x55632fd5, 0xdc65f2b1), + PCMCIA_DEVICE_PROD_ID12("DYNALINK", "L10BC", 0x6a26d1cf, 0xdc65f2b1), + PCMCIA_DEVICE_PROD_ID12("DYNALINK", "L10C", 0x6a26d1cf, 0xc4f84efb), + PCMCIA_DEVICE_PROD_ID12("E-CARD", "E-CARD", 0x6701da11, 0x6701da11), + PCMCIA_DEVICE_PROD_ID12("EIGER Labs Inc.", "Ethernet 10BaseT card", 0x53c864c6, 0xedd059f6), + PCMCIA_DEVICE_PROD_ID12("EIGER Labs Inc.", "Ethernet Combo card", 0x53c864c6, 0x929c486c), + PCMCIA_DEVICE_PROD_ID12("Ethernet", "Adapter", 0x00b2e941, 0x4b0d829e), + PCMCIA_DEVICE_PROD_ID12("Ethernet Adapter", "E2000 PCMCIA Ethernet", 0x96767301, 0x71fbbc61), + PCMCIA_DEVICE_PROD_ID12("Ethernet PCMCIA adapter", "EP-210", 0x8dd86181, 0xf2b52517), + PCMCIA_DEVICE_PROD_ID12("Fast Ethernet", "Adapter", 0xb4be14e3, 0x4b0d829e), + PCMCIA_DEVICE_PROD_ID12("Grey Cell", "GCS2000", 0x2a151fac, 0xf00555cb), + PCMCIA_DEVICE_PROD_ID12("Grey Cell", "GCS2220", 0x2a151fac, 0xc1b7e327), + PCMCIA_DEVICE_PROD_ID12("GVC", "NIC-2000p", 0x76e171bd, 0x6eb1c947), + PCMCIA_DEVICE_PROD_ID12("IBM Corp.", "Ethernet", 0xe3736c88, 0x00b2e941), + PCMCIA_DEVICE_PROD_ID12("IC-CARD", "IC-CARD", 0x60cb09a6, 0x60cb09a6), + PCMCIA_DEVICE_PROD_ID12("IC-CARD+", "IC-CARD+", 0x93693494, 0x93693494), + PCMCIA_DEVICE_PROD_ID12("IO DATA", "PCETTX", 0x547e66dc, 0x6fc5459b), + PCMCIA_DEVICE_PROD_ID12("iPort", "10/100 Ethernet Card", 0x56c538d2, 0x11b0ffc0), + PCMCIA_DEVICE_PROD_ID12("KANSAI ELECTRIC CO.,LTD", "KLA-PCM/T", 0xb18dc3b4, 0xcc51a956), + PCMCIA_DEVICE_PROD_ID12("KENTRONICS", "KEP-230", 0xaf8144c9, 0x868f6616), + PCMCIA_DEVICE_PROD_ID12("KCI", "PE520 PCMCIA Ethernet Adapter", 0xa89b87d3, 0x1eb88e64), + PCMCIA_DEVICE_PROD_ID12("KINGMAX", "EN10T2T", 0x7bcb459a, 0xa5c81fa5), + PCMCIA_DEVICE_PROD_ID12("Kingston", "KNE-PC2", 0x1128e633, 0xce2a89b3), + PCMCIA_DEVICE_PROD_ID12("Kingston Technology Corp.", "EtheRx PC Card Ethernet Adapter", 0x313c7be3, 0x0afb54a2), + PCMCIA_DEVICE_PROD_ID12("Laneed", "LD-10/100CD", 0x1b7827b2, 0xcda71d1c), + PCMCIA_DEVICE_PROD_ID12("Laneed", "LD-CDF", 0x1b7827b2, 0xfec71e40), + PCMCIA_DEVICE_PROD_ID12("Laneed", "LD-CDL/T", 0x1b7827b2, 0x79fba4f7), + PCMCIA_DEVICE_PROD_ID12("Laneed", "LD-CDS", 0x1b7827b2, 0x931afaab), + PCMCIA_DEVICE_PROD_ID12("LEMEL", "LM-N89TX PRO", 0xbbefb52f, 0xd2897a97), + PCMCIA_DEVICE_PROD_ID12("Linksys", "Combo PCMCIA EthernetCard (EC2T)", 0x0733cc81, 0x32ee8c78), + PCMCIA_DEVICE_PROD_ID12("LINKSYS", "E-CARD", 0xf7cb0b07, 0x6701da11), + PCMCIA_DEVICE_PROD_ID12("Linksys", "EtherFast 10/100 Integrated PC Card (PCM100)", 0x0733cc81, 0x453c3f9d), + PCMCIA_DEVICE_PROD_ID12("Linksys", "EtherFast 10/100 PC Card (PCMPC100)", 0x0733cc81, 0x66c5a389), + PCMCIA_DEVICE_PROD_ID12("Linksys", "EtherFast 10/100 PC Card (PCMPC100 V2)", 0x0733cc81, 0x3a3b28e9), + PCMCIA_DEVICE_PROD_ID12("Linksys", "HomeLink Phoneline + 10/100 Network PC Card (PCM100H1)", 0x733cc81, 0x7a3e5c3a), + PCMCIA_DEVICE_PROD_ID12("Logitec", "LPM-LN100TX", 0x88fcdeda, 0x6d772737), + PCMCIA_DEVICE_PROD_ID12("Logitec", "LPM-LN100TE", 0x88fcdeda, 0x0e714bee), + PCMCIA_DEVICE_PROD_ID12("Logitec", "LPM-LN20T", 0x88fcdeda, 0x81090922), + PCMCIA_DEVICE_PROD_ID12("Logitec", "LPM-LN10TE", 0x88fcdeda, 0xc1e2521c), + PCMCIA_DEVICE_PROD_ID12("LONGSHINE", "PCMCIA Ethernet Card", 0xf866b0b0, 0x6f6652e0), + PCMCIA_DEVICE_PROD_ID12("MACNICA", "ME1-JEIDA", 0x20841b68, 0xaf8a3578), + PCMCIA_DEVICE_PROD_ID12("Macsense", "MPC-10", 0xd830297f, 0xd265c307), + PCMCIA_DEVICE_PROD_ID12("Matsushita Electric Industrial Co.,LTD.", "CF-VEL211", 0x44445376, 0x8ded41d4), + PCMCIA_DEVICE_PROD_ID12("MAXTECH", "PCN2000", 0x78d64bc0, 0xca0ca4b8), + PCMCIA_DEVICE_PROD_ID12("MELCO", "LPC2-T", 0x481e0094, 0xa2eb0cf3), + PCMCIA_DEVICE_PROD_ID12("MELCO", "LPC2-TX", 0x481e0094, 0x41a6916c), + PCMCIA_DEVICE_PROD_ID12("Microcom C.E.", "Travel Card LAN 10/100", 0x4b91cec7, 0xe70220d6), + PCMCIA_DEVICE_PROD_ID12("Microdyne", "NE4200", 0x2e6da59b, 0x0478e472), + PCMCIA_DEVICE_PROD_ID12("MIDORI ELEC.", "LT-PCMT", 0x648d55c1, 0xbde526c7), + PCMCIA_DEVICE_PROD_ID12("National Semiconductor", "InfoMover 4100", 0x36e1191f, 0x60c229b9), + PCMCIA_DEVICE_PROD_ID12("National Semiconductor", "InfoMover NE4100", 0x36e1191f, 0xa6617ec8), + PCMCIA_DEVICE_PROD_ID12("NEC", "PC-9801N-J12", 0x18df0ba0, 0xbc912d76), + PCMCIA_DEVICE_PROD_ID12("NETGEAR", "FA410TX", 0x9aa79dc3, 0x60e5bc0e), + PCMCIA_DEVICE_PROD_ID12("Network Everywhere", "Fast Ethernet 10/100 PC Card", 0x820a67b6, 0x31ed1a5f), + PCMCIA_DEVICE_PROD_ID12("NextCom K.K.", "Next Hawk", 0xaedaec74, 0xad050ef1), + PCMCIA_DEVICE_PROD_ID12("PCMCIA", "10/100Mbps Ethernet Card", 0x281f1c5d, 0x6e41773b), + PCMCIA_DEVICE_PROD_ID12("PCMCIA", "Ethernet", 0x281f1c5d, 0x00b2e941), + PCMCIA_DEVICE_PROD_ID12("PCMCIA", "ETHERNET", 0x281f1c5d, 0x3ff7175b), + PCMCIA_DEVICE_PROD_ID12("PCMCIA", "Ethernet 10BaseT Card", 0x281f1c5d, 0x4de2f6c8), + PCMCIA_DEVICE_PROD_ID12("PCMCIA", "Ethernet Card", 0x281f1c5d, 0x5e9d92c0), + PCMCIA_DEVICE_PROD_ID12("PCMCIA", "Ethernet Combo card", 0x281f1c5d, 0x929c486c), + PCMCIA_DEVICE_PROD_ID12("PCMCIA", "ETHERNET V1.0", 0x281f1c5d, 0x4d8817c8), + PCMCIA_DEVICE_PROD_ID12("PCMCIA", "FastEthernet", 0x281f1c5d, 0xfe871eeb), + PCMCIA_DEVICE_PROD_ID12("PCMCIA", "Fast-Ethernet", 0x281f1c5d, 0x45f1f3b4), + PCMCIA_DEVICE_PROD_ID12("PCMCIA", "FAST ETHERNET CARD", 0x281f1c5d, 0xec5dbca7), + PCMCIA_DEVICE_PROD_ID12("PCMCIA LAN", "Ethernet", 0x7500e246, 0x00b2e941), + PCMCIA_DEVICE_PROD_ID12("PCMCIA", "LNT-10TN", 0x281f1c5d, 0xe707f641), + PCMCIA_DEVICE_PROD_ID12("PCMCIAs", "ComboCard", 0xdcfe12d3, 0xcd8906cc), + PCMCIA_DEVICE_PROD_ID12("PCMCIA", "UE2212", 0x281f1c5d, 0xbf17199b), + PCMCIA_DEVICE_PROD_ID12("PCMCIA", " Ethernet NE2000 Compatible", 0x281f1c5d, 0x42d5d7e1), + PCMCIA_DEVICE_PROD_ID12("PRETEC", "Ethernet CompactLAN 10baseT 3.3V", 0xebf91155, 0x30074c80), + PCMCIA_DEVICE_PROD_ID12("PRETEC", "Ethernet CompactLAN 10BaseT 3.3V", 0xebf91155, 0x7f5a4f50), + PCMCIA_DEVICE_PROD_ID12("Psion Dacom", "Gold Card Ethernet", 0xf5f025c2, 0x3a30e110), + PCMCIA_DEVICE_PROD_ID12("=RELIA==", "Ethernet", 0xcdd0644a, 0x00b2e941), + PCMCIA_DEVICE_PROD_ID12("RIOS Systems Co.", "PC CARD3 ETHERNET", 0x7dd33481, 0x10b41826), + PCMCIA_DEVICE_PROD_ID12("RP", "1625B Ethernet NE2000 Compatible", 0xe3e66e22, 0xb96150df), + PCMCIA_DEVICE_PROD_ID12("RPTI", "EP400 Ethernet NE2000 Compatible", 0xdc6f88fd, 0x4a7e2ae0), + PCMCIA_DEVICE_PROD_ID12("RPTI", "EP401 Ethernet NE2000 Compatible", 0xdc6f88fd, 0x4bcbd7fd), + PCMCIA_DEVICE_PROD_ID12("RPTI LTD.", "EP400", 0xc53ac515, 0x81e39388), + PCMCIA_DEVICE_PROD_ID12("SCM", "Ethernet Combo card", 0xbdc3b102, 0x929c486c), + PCMCIA_DEVICE_PROD_ID12("Seiko Epson Corp.", "Ethernet", 0x09928730, 0x00b2e941), + PCMCIA_DEVICE_PROD_ID12("SMC", "EZCard-10-PCMCIA", 0xc4f8b18b, 0xfb21d265), + PCMCIA_DEVICE_PROD_ID12("Socket Communications Inc", "Socket EA PCMCIA LAN Adapter Revision D", 0xc70a4760, 0x2ade483e), + PCMCIA_DEVICE_PROD_ID12("Socket Communications Inc", "Socket EA PCMCIA LAN Adapter Revision E", 0xc70a4760, 0x5dd978a8), + PCMCIA_DEVICE_PROD_ID12("TDK", "LAK-CD031 for PCMCIA", 0x1eae9475, 0x0ed386fa), + PCMCIA_DEVICE_PROD_ID12("Telecom Device K.K.", "SuperSocket RE450T", 0x466b05f0, 0x8b74bc4f), + PCMCIA_DEVICE_PROD_ID12("Telecom Device K.K.", "SuperSocket RE550T", 0x466b05f0, 0x33c8db2a), + PCMCIA_DEVICE_PROD_ID13("Hypertec", "EP401", 0x8787bec7, 0xf6e4a31e), + PCMCIA_DEVICE_PROD_ID13("KingMax Technology Inc.", "Ethernet Card", 0x932b7189, 0x5e9d92c0), + PCMCIA_DEVICE_PROD_ID13("LONGSHINE", "EP401", 0xf866b0b0, 0xf6e4a31e), + PCMCIA_DEVICE_PROD_ID13("Xircom", "CFE-10", 0x2e3ee845, 0x22a49f89), + PCMCIA_DEVICE_PROD_ID1("CyQ've 10 Base-T LAN CARD", 0x94faf360), + PCMCIA_DEVICE_PROD_ID1("EP-210 PCMCIA LAN CARD.", 0x8850b4de), + PCMCIA_DEVICE_PROD_ID1("ETHER-C16", 0x06a8514f), + PCMCIA_DEVICE_PROD_ID1("NE2000 Compatible", 0x75b8ad5a), + PCMCIA_DEVICE_PROD_ID2("EN-6200P2", 0xa996d078), + /* too generic! */ + /* PCMCIA_DEVICE_PROD_ID12("PCMCIA", "10/100 Ethernet Card", 0x281f1c5d, 0x11b0ffc0), */ + PCMCIA_PFC_DEVICE_CIS_PROD_ID12(0, "PCMCIA", "EN2218-LAN/MODEM", 0x281f1c5d, 0x570f348e, "cis/PCMLM28.cis"), + PCMCIA_PFC_DEVICE_CIS_PROD_ID12(0, "PCMCIA", "UE2218-LAN/MODEM", 0x281f1c5d, 0x6fdcacee, "cis/PCMLM28.cis"), + PCMCIA_PFC_DEVICE_CIS_PROD_ID12(0, "Psion Dacom", "Gold Card V34 Ethernet", 0xf5f025c2, 0x338e8155, "cis/PCMLM28.cis"), + PCMCIA_PFC_DEVICE_CIS_PROD_ID12(0, "Psion Dacom", "Gold Card V34 Ethernet GSM", 0xf5f025c2, 0x4ae85d35, "cis/PCMLM28.cis"), + PCMCIA_PFC_DEVICE_CIS_PROD_ID12(0, "LINKSYS", "PCMLM28", 0xf7cb0b07, 0x66881874, "cis/PCMLM28.cis"), + PCMCIA_PFC_DEVICE_CIS_PROD_ID12(0, "TOSHIBA", "Modem/LAN Card", 0xb4585a1a, 0x53f922f8, "cis/PCMLM28.cis"), + PCMCIA_MFC_DEVICE_CIS_PROD_ID12(0, "DAYNA COMMUNICATIONS", "LAN AND MODEM MULTIFUNCTION", 0x8fdf8f89, 0xdd5ed9e8, "cis/DP83903.cis"), + PCMCIA_MFC_DEVICE_CIS_PROD_ID4(0, "NSC MF LAN/Modem", 0x58fc6056, "cis/DP83903.cis"), + PCMCIA_MFC_DEVICE_CIS_MANF_CARD(0, 0x0175, 0x0000, "cis/DP83903.cis"), + PCMCIA_DEVICE_CIS_PROD_ID12("Allied Telesis,K.K", "Ethernet LAN Card", 0x2ad62f3c, 0x9fd2f0a2, "cis/LA-PCM.cis"), + PCMCIA_DEVICE_CIS_PROD_ID12("KTI", "PE520 PLUS", 0xad180345, 0x9d58d392, "cis/PE520.cis"), + PCMCIA_DEVICE_CIS_PROD_ID12("NDC", "Ethernet", 0x01c43ae1, 0x00b2e941, "cis/NE2K.cis"), + PCMCIA_DEVICE_CIS_PROD_ID12("PMX ", "PE-200", 0x34f3f1c8, 0x10b59f8c, "cis/PE-200.cis"), + PCMCIA_DEVICE_CIS_PROD_ID12("TAMARACK", "Ethernet", 0xcf434fba, 0x00b2e941, "cis/tamarack.cis"), + PCMCIA_DEVICE_PROD_ID12("Ethernet", "CF Size PC Card", 0x00b2e941, 0x43ac239b), + PCMCIA_DEVICE_PROD_ID123("Fast Ethernet", "CF Size PC Card", "1.0", + 0xb4be14e3, 0x43ac239b, 0x0877b627), + PCMCIA_DEVICE_NULL +}; +MODULE_DEVICE_TABLE(pcmcia, pcnet_ids); +MODULE_FIRMWARE("cis/PCMLM28.cis"); +MODULE_FIRMWARE("cis/DP83903.cis"); +MODULE_FIRMWARE("cis/LA-PCM.cis"); +MODULE_FIRMWARE("cis/PE520.cis"); +MODULE_FIRMWARE("cis/NE2K.cis"); +MODULE_FIRMWARE("cis/PE-200.cis"); +MODULE_FIRMWARE("cis/tamarack.cis"); + +static struct pcmcia_driver pcnet_driver = { + .name = "pcnet_cs", + .probe = pcnet_probe, + .remove = pcnet_detach, + .owner = THIS_MODULE, + .id_table = pcnet_ids, + .suspend = pcnet_suspend, + .resume = pcnet_resume, +}; + +static int __init init_pcnet_cs(void) +{ + return pcmcia_register_driver(&pcnet_driver); +} + +static void __exit exit_pcnet_cs(void) +{ + pcmcia_unregister_driver(&pcnet_driver); +} + +module_init(init_pcnet_cs); +module_exit(exit_pcnet_cs); diff --git a/drivers/net/ethernet/8390/smc-mca.c b/drivers/net/ethernet/8390/smc-mca.c new file mode 100644 index 000000000000..34934fb23b97 --- /dev/null +++ b/drivers/net/ethernet/8390/smc-mca.c @@ -0,0 +1,576 @@ +/* smc-mca.c: A SMC Ultra ethernet driver for linux. */ +/* + Most of this driver, except for ultramca_probe is nearly + verbatim from smc-ultra.c by Donald Becker. The rest is + written and copyright 1996 by David Weis, weisd3458@uni.edu + + This is a driver for the SMC Ultra and SMC EtherEZ ethercards. + + This driver uses the cards in the 8390-compatible, shared memory mode. + Most of the run-time complexity is handled by the generic code in + 8390.c. + + This driver enables the shared memory only when doing the actual data + transfers to avoid a bug in early version of the card that corrupted + data transferred by a AHA1542. + + This driver does not support the programmed-I/O data transfer mode of + the EtherEZ. That support (if available) is smc-ez.c. Nor does it + use the non-8390-compatible "Altego" mode. (No support currently planned.) + + Changelog: + + Paul Gortmaker : multiple card support for module users. + David Weis : Micro Channel-ized it. + Tom Sightler : Added support for IBM PS/2 Ethernet Adapter/A + Christopher Turcksin : Changed MCA-probe so that multiple adapters are + found correctly (Jul 16, 1997) + Chris Beauregard : Tried to merge the two changes above (Dec 15, 1997) + Tom Sightler : Fixed minor detection bug caused by above merge + Tom Sightler : Added support for three more Western Digital + MCA-adapters + Tom Sightler : Added support for 2.2.x mca_find_unused_adapter + Hartmut Schmidt : - Modified parameter detection to handle each + card differently depending on a switch-list + - 'card_ver' removed from the adapter list + - Some minor bug fixes +*/ + +#include <linux/mca.h> +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/string.h> +#include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/netdevice.h> +#include <linux/etherdevice.h> + +#include <asm/io.h> +#include <asm/system.h> + +#include "8390.h" + +#define DRV_NAME "smc-mca" + +static int ultramca_open(struct net_device *dev); +static void ultramca_reset_8390(struct net_device *dev); +static void ultramca_get_8390_hdr(struct net_device *dev, + struct e8390_pkt_hdr *hdr, + int ring_page); +static void ultramca_block_input(struct net_device *dev, int count, + struct sk_buff *skb, + int ring_offset); +static void ultramca_block_output(struct net_device *dev, int count, + const unsigned char *buf, + const int start_page); +static int ultramca_close_card(struct net_device *dev); + +#define START_PG 0x00 /* First page of TX buffer */ + +#define ULTRA_CMDREG 0 /* Offset to ASIC command register. */ +#define ULTRA_RESET 0x80 /* Board reset, in ULTRA_CMDREG. */ +#define ULTRA_MEMENB 0x40 /* Enable the shared memory. */ +#define ULTRA_NIC_OFFSET 16 /* NIC register offset from the base_addr. */ +#define ULTRA_IO_EXTENT 32 +#define EN0_ERWCNT 0x08 /* Early receive warning count. */ + +#define _61c8_SMC_Ethercard_PLUS_Elite_A_BNC_AUI_WD8013EP_A 0 +#define _61c9_SMC_Ethercard_PLUS_Elite_A_UTP_AUI_WD8013EP_A 1 +#define _6fc0_WD_Ethercard_PLUS_A_WD8003E_A_OR_WD8003ET_A 2 +#define _6fc1_WD_Starcard_PLUS_A_WD8003ST_A 3 +#define _6fc2_WD_Ethercard_PLUS_10T_A_WD8003W_A 4 +#define _efd4_IBM_PS2_Adapter_A_for_Ethernet_UTP_AUI_WD8013WP_A 5 +#define _efd5_IBM_PS2_Adapter_A_for_Ethernet_BNC_AUI_WD8013WP_A 6 +#define _efe5_IBM_PS2_Adapter_A_for_Ethernet 7 + +struct smc_mca_adapters_t { + unsigned int id; + char *name; +}; + +#define MAX_ULTRAMCA_CARDS 4 /* Max number of Ultra cards per module */ + +static int ultra_io[MAX_ULTRAMCA_CARDS]; +static int ultra_irq[MAX_ULTRAMCA_CARDS]; +MODULE_LICENSE("GPL"); + +module_param_array(ultra_io, int, NULL, 0); +module_param_array(ultra_irq, int, NULL, 0); +MODULE_PARM_DESC(ultra_io, "SMC Ultra/EtherEZ MCA I/O base address(es)"); +MODULE_PARM_DESC(ultra_irq, "SMC Ultra/EtherEZ MCA IRQ number(s)"); + +static const struct { + unsigned int base_addr; +} addr_table[] = { + { 0x0800 }, + { 0x1800 }, + { 0x2800 }, + { 0x3800 }, + { 0x4800 }, + { 0x5800 }, + { 0x6800 }, + { 0x7800 }, + { 0x8800 }, + { 0x9800 }, + { 0xa800 }, + { 0xb800 }, + { 0xc800 }, + { 0xd800 }, + { 0xe800 }, + { 0xf800 } +}; + +#define MEM_MASK 64 + +static const struct { + unsigned char mem_index; + unsigned long mem_start; + unsigned char num_pages; +} mem_table[] = { + { 16, 0x0c0000, 40 }, + { 18, 0x0c4000, 40 }, + { 20, 0x0c8000, 40 }, + { 22, 0x0cc000, 40 }, + { 24, 0x0d0000, 40 }, + { 26, 0x0d4000, 40 }, + { 28, 0x0d8000, 40 }, + { 30, 0x0dc000, 40 }, + {144, 0xfc0000, 40 }, + {148, 0xfc8000, 40 }, + {154, 0xfd0000, 40 }, + {156, 0xfd8000, 40 }, + { 0, 0x0c0000, 20 }, + { 1, 0x0c2000, 20 }, + { 2, 0x0c4000, 20 }, + { 3, 0x0c6000, 20 } +}; + +#define IRQ_MASK 243 +static const struct { + unsigned char new_irq; + unsigned char old_irq; +} irq_table[] = { + { 3, 3 }, + { 4, 4 }, + { 10, 10 }, + { 14, 15 } +}; + +static short smc_mca_adapter_ids[] __initdata = { + 0x61c8, + 0x61c9, + 0x6fc0, + 0x6fc1, + 0x6fc2, + 0xefd4, + 0xefd5, + 0xefe5, + 0x0000 +}; + +static char *smc_mca_adapter_names[] __initdata = { + "SMC Ethercard PLUS Elite/A BNC/AUI (WD8013EP/A)", + "SMC Ethercard PLUS Elite/A UTP/AUI (WD8013WP/A)", + "WD Ethercard PLUS/A (WD8003E/A or WD8003ET/A)", + "WD Starcard PLUS/A (WD8003ST/A)", + "WD Ethercard PLUS 10T/A (WD8003W/A)", + "IBM PS/2 Adapter/A for Ethernet UTP/AUI (WD8013WP/A)", + "IBM PS/2 Adapter/A for Ethernet BNC/AUI (WD8013EP/A)", + "IBM PS/2 Adapter/A for Ethernet", + NULL +}; + +static int ultra_found = 0; + + +static const struct net_device_ops ultramca_netdev_ops = { + .ndo_open = ultramca_open, + .ndo_stop = ultramca_close_card, + + .ndo_start_xmit = ei_start_xmit, + .ndo_tx_timeout = ei_tx_timeout, + .ndo_get_stats = ei_get_stats, + .ndo_set_multicast_list = ei_set_multicast_list, + .ndo_validate_addr = eth_validate_addr, + .ndo_set_mac_address = eth_mac_addr, + .ndo_change_mtu = eth_change_mtu, +#ifdef CONFIG_NET_POLL_CONTROLLER + .ndo_poll_controller = ei_poll, +#endif +}; + +static int __init ultramca_probe(struct device *gen_dev) +{ + unsigned short ioaddr; + struct net_device *dev; + unsigned char reg4, num_pages; + struct mca_device *mca_dev = to_mca_device(gen_dev); + char slot = mca_dev->slot; + unsigned char pos2 = 0xff, pos3 = 0xff, pos4 = 0xff, pos5 = 0xff; + int i, rc; + int adapter = mca_dev->index; + int tbase = 0; + int tirq = 0; + int base_addr = ultra_io[ultra_found]; + int irq = ultra_irq[ultra_found]; + + if (base_addr || irq) { + printk(KERN_INFO "Probing for SMC MCA adapter"); + if (base_addr) { + printk(KERN_INFO " at I/O address 0x%04x%c", + base_addr, irq ? ' ' : '\n'); + } + if (irq) { + printk(KERN_INFO "using irq %d\n", irq); + } + } + + tirq = 0; + tbase = 0; + + /* If we're trying to match a specificied irq or io address, + * we'll reject the adapter found unless it's the one we're + * looking for */ + + pos2 = mca_device_read_stored_pos(mca_dev, 2); /* io_addr */ + pos3 = mca_device_read_stored_pos(mca_dev, 3); /* shared mem */ + pos4 = mca_device_read_stored_pos(mca_dev, 4); /* ROM bios addr range */ + pos5 = mca_device_read_stored_pos(mca_dev, 5); /* irq, media and RIPL */ + + /* Test the following conditions: + * - If an irq parameter is supplied, compare it + * with the irq of the adapter we found + * - If a base_addr paramater is given, compare it + * with the base_addr of the adapter we found + * - Check that the irq and the base_addr of the + * adapter we found is not already in use by + * this driver + */ + + switch (mca_dev->index) { + case _61c8_SMC_Ethercard_PLUS_Elite_A_BNC_AUI_WD8013EP_A: + case _61c9_SMC_Ethercard_PLUS_Elite_A_UTP_AUI_WD8013EP_A: + case _efd4_IBM_PS2_Adapter_A_for_Ethernet_UTP_AUI_WD8013WP_A: + case _efd5_IBM_PS2_Adapter_A_for_Ethernet_BNC_AUI_WD8013WP_A: + { + tbase = addr_table[(pos2 & 0xf0) >> 4].base_addr; + tirq = irq_table[(pos5 & 0xc) >> 2].new_irq; + break; + } + case _6fc0_WD_Ethercard_PLUS_A_WD8003E_A_OR_WD8003ET_A: + case _6fc1_WD_Starcard_PLUS_A_WD8003ST_A: + case _6fc2_WD_Ethercard_PLUS_10T_A_WD8003W_A: + case _efe5_IBM_PS2_Adapter_A_for_Ethernet: + { + tbase = ((pos2 & 0x0fe) * 0x10); + tirq = irq_table[(pos5 & 3)].old_irq; + break; + } + } + + if(!tirq || !tbase || + (irq && irq != tirq) || + (base_addr && tbase != base_addr)) + /* FIXME: we're trying to force the ordering of the + * devices here, there should be a way of getting this + * to happen */ + return -ENXIO; + + /* Adapter found. */ + dev = alloc_ei_netdev(); + if(!dev) + return -ENODEV; + + SET_NETDEV_DEV(dev, gen_dev); + mca_device_set_name(mca_dev, smc_mca_adapter_names[adapter]); + mca_device_set_claim(mca_dev, 1); + + printk(KERN_INFO "smc_mca: %s found in slot %d\n", + smc_mca_adapter_names[adapter], slot + 1); + + ultra_found++; + + dev->base_addr = ioaddr = mca_device_transform_ioport(mca_dev, tbase); + dev->irq = mca_device_transform_irq(mca_dev, tirq); + dev->mem_start = 0; + num_pages = 40; + + switch (adapter) { /* card-# in const array above [hs] */ + case _61c8_SMC_Ethercard_PLUS_Elite_A_BNC_AUI_WD8013EP_A: + case _61c9_SMC_Ethercard_PLUS_Elite_A_UTP_AUI_WD8013EP_A: + { + for (i = 0; i < 16; i++) { /* taking 16 counts + * up to 15 [hs] */ + if (mem_table[i].mem_index == (pos3 & ~MEM_MASK)) { + dev->mem_start = (unsigned long) + mca_device_transform_memory(mca_dev, (void *)mem_table[i].mem_start); + num_pages = mem_table[i].num_pages; + } + } + break; + } + case _6fc0_WD_Ethercard_PLUS_A_WD8003E_A_OR_WD8003ET_A: + case _6fc1_WD_Starcard_PLUS_A_WD8003ST_A: + case _6fc2_WD_Ethercard_PLUS_10T_A_WD8003W_A: + case _efe5_IBM_PS2_Adapter_A_for_Ethernet: + { + dev->mem_start = (unsigned long) + mca_device_transform_memory(mca_dev, (void *)((pos3 & 0xfc) * 0x1000)); + num_pages = 0x40; + break; + } + case _efd4_IBM_PS2_Adapter_A_for_Ethernet_UTP_AUI_WD8013WP_A: + case _efd5_IBM_PS2_Adapter_A_for_Ethernet_BNC_AUI_WD8013WP_A: + { + /* courtesy of gamera@quartz.ocn.ne.jp, pos3 indicates + * the index of the 0x2000 step. + * beware different number of pages [hs] + */ + dev->mem_start = (unsigned long) + mca_device_transform_memory(mca_dev, (void *)(0xc0000 + (0x2000 * (pos3 & 0xf)))); + num_pages = 0x20 + (2 * (pos3 & 0x10)); + break; + } + } + + /* sanity check, shouldn't happen */ + if (dev->mem_start == 0) { + rc = -ENODEV; + goto err_unclaim; + } + + if (!request_region(ioaddr, ULTRA_IO_EXTENT, DRV_NAME)) { + rc = -ENODEV; + goto err_unclaim; + } + + reg4 = inb(ioaddr + 4) & 0x7f; + outb(reg4, ioaddr + 4); + + for (i = 0; i < 6; i++) + dev->dev_addr[i] = inb(ioaddr + 8 + i); + + printk(KERN_INFO "smc_mca[%d]: Parameters: %#3x, %pM", + slot + 1, ioaddr, dev->dev_addr); + + /* Switch from the station address to the alternate register set + * and read the useful registers there. + */ + + outb(0x80 | reg4, ioaddr + 4); + + /* Enable FINE16 mode to avoid BIOS ROM width mismatches @ reboot. + */ + + outb(0x80 | inb(ioaddr + 0x0c), ioaddr + 0x0c); + + /* Switch back to the station address register set so that + * the MS-DOS driver can find the card after a warm boot. + */ + + outb(reg4, ioaddr + 4); + + dev_set_drvdata(gen_dev, dev); + + /* The 8390 isn't at the base address, so fake the offset + */ + + dev->base_addr = ioaddr + ULTRA_NIC_OFFSET; + + ei_status.name = "SMC Ultra MCA"; + ei_status.word16 = 1; + ei_status.tx_start_page = START_PG; + ei_status.rx_start_page = START_PG + TX_PAGES; + ei_status.stop_page = num_pages; + + ei_status.mem = ioremap(dev->mem_start, (ei_status.stop_page - START_PG) * 256); + if (!ei_status.mem) { + rc = -ENOMEM; + goto err_release_region; + } + + dev->mem_end = dev->mem_start + (ei_status.stop_page - START_PG) * 256; + + printk(", IRQ %d memory %#lx-%#lx.\n", + dev->irq, dev->mem_start, dev->mem_end - 1); + + ei_status.reset_8390 = &ultramca_reset_8390; + ei_status.block_input = &ultramca_block_input; + ei_status.block_output = &ultramca_block_output; + ei_status.get_8390_hdr = &ultramca_get_8390_hdr; + + ei_status.priv = slot; + + dev->netdev_ops = &ultramca_netdev_ops; + + NS8390_init(dev, 0); + + rc = register_netdev(dev); + if (rc) + goto err_unmap; + + return 0; + +err_unmap: + iounmap(ei_status.mem); +err_release_region: + release_region(ioaddr, ULTRA_IO_EXTENT); +err_unclaim: + mca_device_set_claim(mca_dev, 0); + free_netdev(dev); + return rc; +} + +static int ultramca_open(struct net_device *dev) +{ + int ioaddr = dev->base_addr - ULTRA_NIC_OFFSET; /* ASIC addr */ + int retval; + + if ((retval = request_irq(dev->irq, ei_interrupt, 0, dev->name, dev))) + return retval; + + outb(ULTRA_MEMENB, ioaddr); /* Enable memory */ + outb(0x80, ioaddr + 5); /* ??? */ + outb(0x01, ioaddr + 6); /* Enable interrupts and memory. */ + outb(0x04, ioaddr + 5); /* ??? */ + + /* Set the early receive warning level in window 0 high enough not + * to receive ERW interrupts. + */ + + /* outb_p(E8390_NODMA + E8390_PAGE0, dev->base_addr); + * outb(0xff, dev->base_addr + EN0_ERWCNT); + */ + + ei_open(dev); + return 0; +} + +static void ultramca_reset_8390(struct net_device *dev) +{ + int ioaddr = dev->base_addr - ULTRA_NIC_OFFSET; /* ASIC addr */ + + outb(ULTRA_RESET, ioaddr); + if (ei_debug > 1) + printk("resetting Ultra, t=%ld...", jiffies); + ei_status.txing = 0; + + outb(0x80, ioaddr + 5); /* ??? */ + outb(0x01, ioaddr + 6); /* Enable interrupts and memory. */ + + if (ei_debug > 1) + printk("reset done\n"); +} + +/* Grab the 8390 specific header. Similar to the block_input routine, but + * we don't need to be concerned with ring wrap as the header will be at + * the start of a page, so we optimize accordingly. + */ + +static void ultramca_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page) +{ + void __iomem *hdr_start = ei_status.mem + ((ring_page - START_PG) << 8); + +#ifdef notdef + /* Officially this is what we are doing, but the readl() is faster */ + memcpy_fromio(hdr, hdr_start, sizeof(struct e8390_pkt_hdr)); +#else + ((unsigned int*)hdr)[0] = readl(hdr_start); +#endif +} + +/* Block input and output are easy on shared memory ethercards, the only + * complication is when the ring buffer wraps. + */ + +static void ultramca_block_input(struct net_device *dev, int count, struct sk_buff *skb, int ring_offset) +{ + void __iomem *xfer_start = ei_status.mem + ring_offset - START_PG * 256; + + if (ring_offset + count > ei_status.stop_page * 256) { + /* We must wrap the input move. */ + int semi_count = ei_status.stop_page * 256 - ring_offset; + memcpy_fromio(skb->data, xfer_start, semi_count); + count -= semi_count; + memcpy_fromio(skb->data + semi_count, ei_status.mem + TX_PAGES * 256, count); + } else { + memcpy_fromio(skb->data, xfer_start, count); + } + +} + +static void ultramca_block_output(struct net_device *dev, int count, const unsigned char *buf, + int start_page) +{ + void __iomem *shmem = ei_status.mem + ((start_page - START_PG) << 8); + + memcpy_toio(shmem, buf, count); +} + +static int ultramca_close_card(struct net_device *dev) +{ + int ioaddr = dev->base_addr - ULTRA_NIC_OFFSET; /* ASIC addr */ + + netif_stop_queue(dev); + + if (ei_debug > 1) + printk("%s: Shutting down ethercard.\n", dev->name); + + outb(0x00, ioaddr + 6); /* Disable interrupts. */ + free_irq(dev->irq, dev); + + NS8390_init(dev, 0); + /* We should someday disable shared memory and change to 8-bit mode + * "just in case"... + */ + + return 0; +} + +static int ultramca_remove(struct device *gen_dev) +{ + struct mca_device *mca_dev = to_mca_device(gen_dev); + struct net_device *dev = dev_get_drvdata(gen_dev); + + if (dev) { + /* NB: ultra_close_card() does free_irq */ + int ioaddr = dev->base_addr - ULTRA_NIC_OFFSET; + + unregister_netdev(dev); + mca_device_set_claim(mca_dev, 0); + release_region(ioaddr, ULTRA_IO_EXTENT); + iounmap(ei_status.mem); + free_netdev(dev); + } + return 0; +} + + +static struct mca_driver ultra_driver = { + .id_table = smc_mca_adapter_ids, + .driver = { + .name = "smc-mca", + .bus = &mca_bus_type, + .probe = ultramca_probe, + .remove = ultramca_remove, + } +}; + +static int __init ultramca_init_module(void) +{ + if(!MCA_bus) + return -ENXIO; + + mca_register_driver(&ultra_driver); + + return ultra_found ? 0 : -ENXIO; +} + +static void __exit ultramca_cleanup_module(void) +{ + mca_unregister_driver(&ultra_driver); +} +module_init(ultramca_init_module); +module_exit(ultramca_cleanup_module); + diff --git a/drivers/net/ethernet/8390/smc-ultra.c b/drivers/net/ethernet/8390/smc-ultra.c new file mode 100644 index 000000000000..ba44ede29198 --- /dev/null +++ b/drivers/net/ethernet/8390/smc-ultra.c @@ -0,0 +1,622 @@ +/* smc-ultra.c: A SMC Ultra ethernet driver for linux. */ +/* + This is a driver for the SMC Ultra and SMC EtherEZ ISA ethercards. + + Written 1993-1998 by Donald Becker. + + Copyright 1993 United States Government as represented by the + Director, National Security Agency. + + This software may be used and distributed according to the terms + of the GNU General Public License, incorporated herein by reference. + + The author may be reached as becker@scyld.com, or C/O + Scyld Computing Corporation + 410 Severn Ave., Suite 210 + Annapolis MD 21403 + + This driver uses the cards in the 8390-compatible mode. + Most of the run-time complexity is handled by the generic code in + 8390.c. The code in this file is responsible for + + ultra_probe() Detecting and initializing the card. + ultra_probe1() + ultra_probe_isapnp() + + ultra_open() The card-specific details of starting, stopping + ultra_reset_8390() and resetting the 8390 NIC core. + ultra_close() + + ultra_block_input() Routines for reading and writing blocks of + ultra_block_output() packet buffer memory. + ultra_pio_input() + ultra_pio_output() + + This driver enables the shared memory only when doing the actual data + transfers to avoid a bug in early version of the card that corrupted + data transferred by a AHA1542. + + This driver now supports the programmed-I/O (PIO) data transfer mode of + the EtherEZ. It does not use the non-8390-compatible "Altego" mode. + That support (if available) is in smc-ez.c. + + Changelog: + + Paul Gortmaker : multiple card support for module users. + Donald Becker : 4/17/96 PIO support, minor potential problems avoided. + Donald Becker : 6/6/96 correctly set auto-wrap bit. + Alexander Sotirov : 1/20/01 Added support for ISAPnP cards + + Note about the ISA PnP support: + + This driver can not autoprobe for more than one SMC EtherEZ PnP card. + You have to configure the second card manually through the /proc/isapnp + interface and then load the module with an explicit io=0x___ option. +*/ + +static const char version[] = + "smc-ultra.c:v2.02 2/3/98 Donald Becker (becker@cesdis.gsfc.nasa.gov)\n"; + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/string.h> +#include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/isapnp.h> +#include <linux/netdevice.h> +#include <linux/etherdevice.h> + +#include <asm/io.h> +#include <asm/irq.h> +#include <asm/system.h> + +#include "8390.h" + +#define DRV_NAME "smc-ultra" + +/* A zero-terminated list of I/O addresses to be probed. */ +static unsigned int ultra_portlist[] __initdata = +{0x200, 0x220, 0x240, 0x280, 0x300, 0x340, 0x380, 0}; + +static int ultra_probe1(struct net_device *dev, int ioaddr); + +#ifdef __ISAPNP__ +static int ultra_probe_isapnp(struct net_device *dev); +#endif + +static int ultra_open(struct net_device *dev); +static void ultra_reset_8390(struct net_device *dev); +static void ultra_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, + int ring_page); +static void ultra_block_input(struct net_device *dev, int count, + struct sk_buff *skb, int ring_offset); +static void ultra_block_output(struct net_device *dev, int count, + const unsigned char *buf, const int start_page); +static void ultra_pio_get_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, + int ring_page); +static void ultra_pio_input(struct net_device *dev, int count, + struct sk_buff *skb, int ring_offset); +static void ultra_pio_output(struct net_device *dev, int count, + const unsigned char *buf, const int start_page); +static int ultra_close_card(struct net_device *dev); + +#ifdef __ISAPNP__ +static struct isapnp_device_id ultra_device_ids[] __initdata = { + { ISAPNP_VENDOR('S','M','C'), ISAPNP_FUNCTION(0x8416), + ISAPNP_VENDOR('S','M','C'), ISAPNP_FUNCTION(0x8416), + (long) "SMC EtherEZ (8416)" }, + { } /* terminate list */ +}; + +MODULE_DEVICE_TABLE(isapnp, ultra_device_ids); +#endif + + +#define START_PG 0x00 /* First page of TX buffer */ + +#define ULTRA_CMDREG 0 /* Offset to ASIC command register. */ +#define ULTRA_RESET 0x80 /* Board reset, in ULTRA_CMDREG. */ +#define ULTRA_MEMENB 0x40 /* Enable the shared memory. */ +#define IOPD 0x02 /* I/O Pipe Data (16 bits), PIO operation. */ +#define IOPA 0x07 /* I/O Pipe Address for PIO operation. */ +#define ULTRA_NIC_OFFSET 16 /* NIC register offset from the base_addr. */ +#define ULTRA_IO_EXTENT 32 +#define EN0_ERWCNT 0x08 /* Early receive warning count. */ + +#ifdef CONFIG_NET_POLL_CONTROLLER +static void ultra_poll(struct net_device *dev) +{ + disable_irq(dev->irq); + ei_interrupt(dev->irq, dev); + enable_irq(dev->irq); +} +#endif +/* Probe for the Ultra. This looks like a 8013 with the station + address PROM at I/O ports <base>+8 to <base>+13, with a checksum + following. +*/ + +static int __init do_ultra_probe(struct net_device *dev) +{ + int i; + int base_addr = dev->base_addr; + int irq = dev->irq; + + if (base_addr > 0x1ff) /* Check a single specified location. */ + return ultra_probe1(dev, base_addr); + else if (base_addr != 0) /* Don't probe at all. */ + return -ENXIO; + +#ifdef __ISAPNP__ + /* Look for any installed ISAPnP cards */ + if (isapnp_present() && (ultra_probe_isapnp(dev) == 0)) + return 0; +#endif + + for (i = 0; ultra_portlist[i]; i++) { + dev->irq = irq; + if (ultra_probe1(dev, ultra_portlist[i]) == 0) + return 0; + } + + return -ENODEV; +} + +#ifndef MODULE +struct net_device * __init ultra_probe(int unit) +{ + struct net_device *dev = alloc_ei_netdev(); + int err; + + if (!dev) + return ERR_PTR(-ENOMEM); + + sprintf(dev->name, "eth%d", unit); + netdev_boot_setup_check(dev); + + err = do_ultra_probe(dev); + if (err) + goto out; + return dev; +out: + free_netdev(dev); + return ERR_PTR(err); +} +#endif + +static const struct net_device_ops ultra_netdev_ops = { + .ndo_open = ultra_open, + .ndo_stop = ultra_close_card, + + .ndo_start_xmit = ei_start_xmit, + .ndo_tx_timeout = ei_tx_timeout, + .ndo_get_stats = ei_get_stats, + .ndo_set_multicast_list = ei_set_multicast_list, + .ndo_validate_addr = eth_validate_addr, + .ndo_set_mac_address = eth_mac_addr, + .ndo_change_mtu = eth_change_mtu, +#ifdef CONFIG_NET_POLL_CONTROLLER + .ndo_poll_controller = ultra_poll, +#endif +}; + +static int __init ultra_probe1(struct net_device *dev, int ioaddr) +{ + int i, retval; + int checksum = 0; + const char *model_name; + unsigned char eeprom_irq = 0; + static unsigned version_printed; + /* Values from various config regs. */ + unsigned char num_pages, irqreg, addr, piomode; + unsigned char idreg = inb(ioaddr + 7); + unsigned char reg4 = inb(ioaddr + 4) & 0x7f; + + if (!request_region(ioaddr, ULTRA_IO_EXTENT, DRV_NAME)) + return -EBUSY; + + /* Check the ID nibble. */ + if ((idreg & 0xF0) != 0x20 /* SMC Ultra */ + && (idreg & 0xF0) != 0x40) { /* SMC EtherEZ */ + retval = -ENODEV; + goto out; + } + + /* Select the station address register set. */ + outb(reg4, ioaddr + 4); + + for (i = 0; i < 8; i++) + checksum += inb(ioaddr + 8 + i); + if ((checksum & 0xff) != 0xFF) { + retval = -ENODEV; + goto out; + } + + if (ei_debug && version_printed++ == 0) + printk(version); + + model_name = (idreg & 0xF0) == 0x20 ? "SMC Ultra" : "SMC EtherEZ"; + + for (i = 0; i < 6; i++) + dev->dev_addr[i] = inb(ioaddr + 8 + i); + + printk("%s: %s at %#3x, %pM", dev->name, model_name, + ioaddr, dev->dev_addr); + + /* Switch from the station address to the alternate register set and + read the useful registers there. */ + outb(0x80 | reg4, ioaddr + 4); + + /* Enabled FINE16 mode to avoid BIOS ROM width mismatches @ reboot. */ + outb(0x80 | inb(ioaddr + 0x0c), ioaddr + 0x0c); + piomode = inb(ioaddr + 0x8); + addr = inb(ioaddr + 0xb); + irqreg = inb(ioaddr + 0xd); + + /* Switch back to the station address register set so that the MS-DOS driver + can find the card after a warm boot. */ + outb(reg4, ioaddr + 4); + + if (dev->irq < 2) { + unsigned char irqmap[] = {0, 9, 3, 5, 7, 10, 11, 15}; + int irq; + + /* The IRQ bits are split. */ + irq = irqmap[((irqreg & 0x40) >> 4) + ((irqreg & 0x0c) >> 2)]; + + if (irq == 0) { + printk(", failed to detect IRQ line.\n"); + retval = -EAGAIN; + goto out; + } + dev->irq = irq; + eeprom_irq = 1; + } + + /* The 8390 isn't at the base address, so fake the offset */ + dev->base_addr = ioaddr+ULTRA_NIC_OFFSET; + + { + static const int addr_tbl[4] = { + 0x0C0000, 0x0E0000, 0xFC0000, 0xFE0000 + }; + static const short num_pages_tbl[4] = { + 0x20, 0x40, 0x80, 0xff + }; + + dev->mem_start = ((addr & 0x0f) << 13) + addr_tbl[(addr >> 6) & 3] ; + num_pages = num_pages_tbl[(addr >> 4) & 3]; + } + + ei_status.name = model_name; + ei_status.word16 = 1; + ei_status.tx_start_page = START_PG; + ei_status.rx_start_page = START_PG + TX_PAGES; + ei_status.stop_page = num_pages; + + ei_status.mem = ioremap(dev->mem_start, (ei_status.stop_page - START_PG)*256); + if (!ei_status.mem) { + printk(", failed to ioremap.\n"); + retval = -ENOMEM; + goto out; + } + + dev->mem_end = dev->mem_start + (ei_status.stop_page - START_PG)*256; + + if (piomode) { + printk(",%s IRQ %d programmed-I/O mode.\n", + eeprom_irq ? "EEPROM" : "assigned ", dev->irq); + ei_status.block_input = &ultra_pio_input; + ei_status.block_output = &ultra_pio_output; + ei_status.get_8390_hdr = &ultra_pio_get_hdr; + } else { + printk(",%s IRQ %d memory %#lx-%#lx.\n", eeprom_irq ? "" : "assigned ", + dev->irq, dev->mem_start, dev->mem_end-1); + ei_status.block_input = &ultra_block_input; + ei_status.block_output = &ultra_block_output; + ei_status.get_8390_hdr = &ultra_get_8390_hdr; + } + ei_status.reset_8390 = &ultra_reset_8390; + + dev->netdev_ops = &ultra_netdev_ops; + NS8390_init(dev, 0); + + retval = register_netdev(dev); + if (retval) + goto out; + return 0; +out: + release_region(ioaddr, ULTRA_IO_EXTENT); + return retval; +} + +#ifdef __ISAPNP__ +static int __init ultra_probe_isapnp(struct net_device *dev) +{ + int i; + + for (i = 0; ultra_device_ids[i].vendor != 0; i++) { + struct pnp_dev *idev = NULL; + + while ((idev = pnp_find_dev(NULL, + ultra_device_ids[i].vendor, + ultra_device_ids[i].function, + idev))) { + /* Avoid already found cards from previous calls */ + if (pnp_device_attach(idev) < 0) + continue; + if (pnp_activate_dev(idev) < 0) { + __again: + pnp_device_detach(idev); + continue; + } + /* if no io and irq, search for next */ + if (!pnp_port_valid(idev, 0) || !pnp_irq_valid(idev, 0)) + goto __again; + /* found it */ + dev->base_addr = pnp_port_start(idev, 0); + dev->irq = pnp_irq(idev, 0); + printk(KERN_INFO "smc-ultra.c: ISAPnP reports %s at i/o %#lx, irq %d.\n", + (char *) ultra_device_ids[i].driver_data, + dev->base_addr, dev->irq); + if (ultra_probe1(dev, dev->base_addr) != 0) { /* Shouldn't happen. */ + printk(KERN_ERR "smc-ultra.c: Probe of ISAPnP card at %#lx failed.\n", dev->base_addr); + pnp_device_detach(idev); + return -ENXIO; + } + ei_status.priv = (unsigned long)idev; + break; + } + if (!idev) + continue; + return 0; + } + + return -ENODEV; +} +#endif + +static int +ultra_open(struct net_device *dev) +{ + int retval; + int ioaddr = dev->base_addr - ULTRA_NIC_OFFSET; /* ASIC addr */ + unsigned char irq2reg[] = {0, 0, 0x04, 0x08, 0, 0x0C, 0, 0x40, + 0, 0x04, 0x44, 0x48, 0, 0, 0, 0x4C, }; + + retval = request_irq(dev->irq, ei_interrupt, 0, dev->name, dev); + if (retval) + return retval; + + outb(0x00, ioaddr); /* Disable shared memory for safety. */ + outb(0x80, ioaddr + 5); + /* Set the IRQ line. */ + outb(inb(ioaddr + 4) | 0x80, ioaddr + 4); + outb((inb(ioaddr + 13) & ~0x4C) | irq2reg[dev->irq], ioaddr + 13); + outb(inb(ioaddr + 4) & 0x7f, ioaddr + 4); + + if (ei_status.block_input == &ultra_pio_input) { + outb(0x11, ioaddr + 6); /* Enable interrupts and PIO. */ + outb(0x01, ioaddr + 0x19); /* Enable ring read auto-wrap. */ + } else + outb(0x01, ioaddr + 6); /* Enable interrupts and memory. */ + /* Set the early receive warning level in window 0 high enough not + to receive ERW interrupts. */ + outb_p(E8390_NODMA+E8390_PAGE0, dev->base_addr); + outb(0xff, dev->base_addr + EN0_ERWCNT); + ei_open(dev); + return 0; +} + +static void +ultra_reset_8390(struct net_device *dev) +{ + int cmd_port = dev->base_addr - ULTRA_NIC_OFFSET; /* ASIC base addr */ + + outb(ULTRA_RESET, cmd_port); + if (ei_debug > 1) printk("resetting Ultra, t=%ld...", jiffies); + ei_status.txing = 0; + + outb(0x00, cmd_port); /* Disable shared memory for safety. */ + outb(0x80, cmd_port + 5); + if (ei_status.block_input == &ultra_pio_input) + outb(0x11, cmd_port + 6); /* Enable interrupts and PIO. */ + else + outb(0x01, cmd_port + 6); /* Enable interrupts and memory. */ + + if (ei_debug > 1) printk("reset done\n"); +} + +/* Grab the 8390 specific header. Similar to the block_input routine, but + we don't need to be concerned with ring wrap as the header will be at + the start of a page, so we optimize accordingly. */ + +static void +ultra_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page) +{ + void __iomem *hdr_start = ei_status.mem + ((ring_page - START_PG)<<8); + + outb(ULTRA_MEMENB, dev->base_addr - ULTRA_NIC_OFFSET); /* shmem on */ +#ifdef __BIG_ENDIAN + /* Officially this is what we are doing, but the readl() is faster */ + /* unfortunately it isn't endian aware of the struct */ + memcpy_fromio(hdr, hdr_start, sizeof(struct e8390_pkt_hdr)); + hdr->count = le16_to_cpu(hdr->count); +#else + ((unsigned int*)hdr)[0] = readl(hdr_start); +#endif + outb(0x00, dev->base_addr - ULTRA_NIC_OFFSET); /* shmem off */ +} + +/* Block input and output are easy on shared memory ethercards, the only + complication is when the ring buffer wraps. */ + +static void +ultra_block_input(struct net_device *dev, int count, struct sk_buff *skb, int ring_offset) +{ + void __iomem *xfer_start = ei_status.mem + ring_offset - (START_PG<<8); + + /* Enable shared memory. */ + outb(ULTRA_MEMENB, dev->base_addr - ULTRA_NIC_OFFSET); + + if (ring_offset + count > ei_status.stop_page*256) { + /* We must wrap the input move. */ + int semi_count = ei_status.stop_page*256 - ring_offset; + memcpy_fromio(skb->data, xfer_start, semi_count); + count -= semi_count; + memcpy_fromio(skb->data + semi_count, ei_status.mem + TX_PAGES * 256, count); + } else { + memcpy_fromio(skb->data, xfer_start, count); + } + + outb(0x00, dev->base_addr - ULTRA_NIC_OFFSET); /* Disable memory. */ +} + +static void +ultra_block_output(struct net_device *dev, int count, const unsigned char *buf, + int start_page) +{ + void __iomem *shmem = ei_status.mem + ((start_page - START_PG)<<8); + + /* Enable shared memory. */ + outb(ULTRA_MEMENB, dev->base_addr - ULTRA_NIC_OFFSET); + + memcpy_toio(shmem, buf, count); + + outb(0x00, dev->base_addr - ULTRA_NIC_OFFSET); /* Disable memory. */ +} + +/* The identical operations for programmed I/O cards. + The PIO model is trivial to use: the 16 bit start address is written + byte-sequentially to IOPA, with no intervening I/O operations, and the + data is read or written to the IOPD data port. + The only potential complication is that the address register is shared + and must be always be rewritten between each read/write direction change. + This is no problem for us, as the 8390 code ensures that we are single + threaded. */ +static void ultra_pio_get_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, + int ring_page) +{ + int ioaddr = dev->base_addr - ULTRA_NIC_OFFSET; /* ASIC addr */ + outb(0x00, ioaddr + IOPA); /* Set the address, LSB first. */ + outb(ring_page, ioaddr + IOPA); + insw(ioaddr + IOPD, hdr, sizeof(struct e8390_pkt_hdr)>>1); +} + +static void ultra_pio_input(struct net_device *dev, int count, + struct sk_buff *skb, int ring_offset) +{ + int ioaddr = dev->base_addr - ULTRA_NIC_OFFSET; /* ASIC addr */ + char *buf = skb->data; + + /* For now set the address again, although it should already be correct. */ + outb(ring_offset, ioaddr + IOPA); /* Set the address, LSB first. */ + outb(ring_offset >> 8, ioaddr + IOPA); + /* We know skbuffs are padded to at least word alignment. */ + insw(ioaddr + IOPD, buf, (count+1)>>1); +} + +static void ultra_pio_output(struct net_device *dev, int count, + const unsigned char *buf, const int start_page) +{ + int ioaddr = dev->base_addr - ULTRA_NIC_OFFSET; /* ASIC addr */ + outb(0x00, ioaddr + IOPA); /* Set the address, LSB first. */ + outb(start_page, ioaddr + IOPA); + /* An extra odd byte is OK here as well. */ + outsw(ioaddr + IOPD, buf, (count+1)>>1); +} + +static int +ultra_close_card(struct net_device *dev) +{ + int ioaddr = dev->base_addr - ULTRA_NIC_OFFSET; /* CMDREG */ + + netif_stop_queue(dev); + + if (ei_debug > 1) + printk("%s: Shutting down ethercard.\n", dev->name); + + outb(0x00, ioaddr + 6); /* Disable interrupts. */ + free_irq(dev->irq, dev); + + NS8390_init(dev, 0); + + /* We should someday disable shared memory and change to 8-bit mode + "just in case"... */ + + return 0; +} + + +#ifdef MODULE +#define MAX_ULTRA_CARDS 4 /* Max number of Ultra cards per module */ +static struct net_device *dev_ultra[MAX_ULTRA_CARDS]; +static int io[MAX_ULTRA_CARDS]; +static int irq[MAX_ULTRA_CARDS]; + +module_param_array(io, int, NULL, 0); +module_param_array(irq, int, NULL, 0); +MODULE_PARM_DESC(io, "I/O base address(es)"); +MODULE_PARM_DESC(irq, "IRQ number(s) (assigned)"); +MODULE_DESCRIPTION("SMC Ultra/EtherEZ ISA/PnP Ethernet driver"); +MODULE_LICENSE("GPL"); + +/* This is set up so that only a single autoprobe takes place per call. +ISA device autoprobes on a running machine are not recommended. */ +int __init +init_module(void) +{ + struct net_device *dev; + int this_dev, found = 0; + + for (this_dev = 0; this_dev < MAX_ULTRA_CARDS; this_dev++) { + if (io[this_dev] == 0) { + if (this_dev != 0) break; /* only autoprobe 1st one */ + printk(KERN_NOTICE "smc-ultra.c: Presently autoprobing (not recommended) for a single card.\n"); + } + dev = alloc_ei_netdev(); + if (!dev) + break; + dev->irq = irq[this_dev]; + dev->base_addr = io[this_dev]; + if (do_ultra_probe(dev) == 0) { + dev_ultra[found++] = dev; + continue; + } + free_netdev(dev); + printk(KERN_WARNING "smc-ultra.c: No SMC Ultra card found (i/o = 0x%x).\n", io[this_dev]); + break; + } + if (found) + return 0; + return -ENXIO; +} + +static void cleanup_card(struct net_device *dev) +{ + /* NB: ultra_close_card() does free_irq */ +#ifdef __ISAPNP__ + struct pnp_dev *idev = (struct pnp_dev *)ei_status.priv; + if (idev) + pnp_device_detach(idev); +#endif + release_region(dev->base_addr - ULTRA_NIC_OFFSET, ULTRA_IO_EXTENT); + iounmap(ei_status.mem); +} + +void __exit +cleanup_module(void) +{ + int this_dev; + + for (this_dev = 0; this_dev < MAX_ULTRA_CARDS; this_dev++) { + struct net_device *dev = dev_ultra[this_dev]; + if (dev) { + unregister_netdev(dev); + cleanup_card(dev); + free_netdev(dev); + } + } +} +#endif /* MODULE */ diff --git a/drivers/net/ethernet/8390/smc-ultra32.c b/drivers/net/ethernet/8390/smc-ultra32.c new file mode 100644 index 000000000000..e459c3b2510a --- /dev/null +++ b/drivers/net/ethernet/8390/smc-ultra32.c @@ -0,0 +1,464 @@ +/* smc-ultra32.c: An SMC Ultra32 EISA ethernet driver for linux. + +Sources: + + This driver is based on (cloned from) the ISA SMC Ultra driver + written by Donald Becker. Modifications to support the EISA + version of the card by Paul Gortmaker and Leonard N. Zubkoff. + + This software may be used and distributed according to the terms + of the GNU General Public License, incorporated herein by reference. + +Theory of Operation: + + The SMC Ultra32C card uses the SMC 83c790 chip which is also + found on the ISA SMC Ultra cards. It has a shared memory mode of + operation that makes it similar to the ISA version of the card. + The main difference is that the EISA card has 32KB of RAM, but + only an 8KB window into that memory. The EISA card also can be + set for a bus-mastering mode of operation via the ECU, but that + is not (and probably will never be) supported by this driver. + The ECU should be run to enable shared memory and to disable the + bus-mastering feature for use with linux. + + By programming the 8390 to use only 8KB RAM, the modifications + to the ISA driver can be limited to the probe and initialization + code. This allows easy integration of EISA support into the ISA + driver. However, the driver development kit from SMC provided the + register information for sliding the 8KB window, and hence the 8390 + is programmed to use the full 32KB RAM. + + Unfortunately this required code changes outside the probe/init + routines, and thus we decided to separate the EISA driver from + the ISA one. In this way, ISA users don't end up with a larger + driver due to the EISA code, and EISA users don't end up with a + larger driver due to the ISA EtherEZ PIO code. The driver is + similar to the 3c503/16 driver, in that the window must be set + back to the 1st 8KB of space for access to the two 8390 Tx slots. + + In testing, using only 8KB RAM (3 Tx / 5 Rx) didn't appear to + be a limiting factor, since the EISA bus could get packets off + the card fast enough, but having the use of lots of RAM as Rx + space is extra insurance if interrupt latencies become excessive. + +*/ + +static const char *version = "smc-ultra32.c: 06/97 v1.00\n"; + + +#include <linux/module.h> +#include <linux/eisa.h> +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/string.h> +#include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/netdevice.h> +#include <linux/etherdevice.h> + +#include <asm/io.h> +#include <asm/system.h> + +#include "8390.h" + +#define DRV_NAME "smc-ultra32" + +static int ultra32_probe1(struct net_device *dev, int ioaddr); +static int ultra32_open(struct net_device *dev); +static void ultra32_reset_8390(struct net_device *dev); +static void ultra32_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, + int ring_page); +static void ultra32_block_input(struct net_device *dev, int count, + struct sk_buff *skb, int ring_offset); +static void ultra32_block_output(struct net_device *dev, int count, + const unsigned char *buf, + const int start_page); +static int ultra32_close(struct net_device *dev); + +#define ULTRA32_CMDREG 0 /* Offset to ASIC command register. */ +#define ULTRA32_RESET 0x80 /* Board reset, in ULTRA32_CMDREG. */ +#define ULTRA32_MEMENB 0x40 /* Enable the shared memory. */ +#define ULTRA32_NIC_OFFSET 16 /* NIC register offset from the base_addr. */ +#define ULTRA32_IO_EXTENT 32 +#define EN0_ERWCNT 0x08 /* Early receive warning count. */ + +/* + * Defines that apply only to the Ultra32 EISA card. Note that + * "smc" = 10011 01101 00011 = 0x4da3, and hence !smc8010.cfg translates + * into an EISA ID of 0x1080A34D + */ +#define ULTRA32_BASE 0xca0 +#define ULTRA32_ID 0x1080a34d +#define ULTRA32_IDPORT (-0x20) /* 0xc80 */ +/* Config regs 1->7 from the EISA !SMC8010.CFG file. */ +#define ULTRA32_CFG1 0x04 /* 0xca4 */ +#define ULTRA32_CFG2 0x05 /* 0xca5 */ +#define ULTRA32_CFG3 (-0x18) /* 0xc88 */ +#define ULTRA32_CFG4 (-0x17) /* 0xc89 */ +#define ULTRA32_CFG5 (-0x16) /* 0xc8a */ +#define ULTRA32_CFG6 (-0x15) /* 0xc8b */ +#define ULTRA32_CFG7 0x0d /* 0xcad */ + +static void cleanup_card(struct net_device *dev) +{ + int ioaddr = dev->base_addr - ULTRA32_NIC_OFFSET; + /* NB: ultra32_close_card() does free_irq */ + release_region(ioaddr, ULTRA32_IO_EXTENT); + iounmap(ei_status.mem); +} + +/* Probe for the Ultra32. This looks like a 8013 with the station + address PROM at I/O ports <base>+8 to <base>+13, with a checksum + following. +*/ + +struct net_device * __init ultra32_probe(int unit) +{ + struct net_device *dev; + int base; + int irq; + int err = -ENODEV; + + if (!EISA_bus) + return ERR_PTR(-ENODEV); + + dev = alloc_ei_netdev(); + + if (!dev) + return ERR_PTR(-ENOMEM); + + if (unit >= 0) { + sprintf(dev->name, "eth%d", unit); + netdev_boot_setup_check(dev); + } + + irq = dev->irq; + + /* EISA spec allows for up to 16 slots, but 8 is typical. */ + for (base = 0x1000 + ULTRA32_BASE; base < 0x9000; base += 0x1000) { + if (ultra32_probe1(dev, base) == 0) + break; + dev->irq = irq; + } + if (base >= 0x9000) + goto out; + err = register_netdev(dev); + if (err) + goto out1; + return dev; +out1: + cleanup_card(dev); +out: + free_netdev(dev); + return ERR_PTR(err); +} + + +static const struct net_device_ops ultra32_netdev_ops = { + .ndo_open = ultra32_open, + .ndo_stop = ultra32_close, + .ndo_start_xmit = ei_start_xmit, + .ndo_tx_timeout = ei_tx_timeout, + .ndo_get_stats = ei_get_stats, + .ndo_set_multicast_list = ei_set_multicast_list, + .ndo_validate_addr = eth_validate_addr, + .ndo_set_mac_address = eth_mac_addr, + .ndo_change_mtu = eth_change_mtu, +#ifdef CONFIG_NET_POLL_CONTROLLER + .ndo_poll_controller = ei_poll, +#endif +}; + +static int __init ultra32_probe1(struct net_device *dev, int ioaddr) +{ + int i, edge, media, retval; + int checksum = 0; + const char *model_name; + static unsigned version_printed; + /* Values from various config regs. */ + unsigned char idreg; + unsigned char reg4; + const char *ifmap[] = {"UTP No Link", "", "UTP/AUI", "UTP/BNC"}; + + if (!request_region(ioaddr, ULTRA32_IO_EXTENT, DRV_NAME)) + return -EBUSY; + + if (inb(ioaddr + ULTRA32_IDPORT) == 0xff || + inl(ioaddr + ULTRA32_IDPORT) != ULTRA32_ID) { + retval = -ENODEV; + goto out; + } + + media = inb(ioaddr + ULTRA32_CFG7) & 0x03; + edge = inb(ioaddr + ULTRA32_CFG5) & 0x08; + printk("SMC Ultra32 in EISA Slot %d, Media: %s, %s IRQs.\n", + ioaddr >> 12, ifmap[media], + (edge ? "Edge Triggered" : "Level Sensitive")); + + idreg = inb(ioaddr + 7); + reg4 = inb(ioaddr + 4) & 0x7f; + + /* Check the ID nibble. */ + if ((idreg & 0xf0) != 0x20) { /* SMC Ultra */ + retval = -ENODEV; + goto out; + } + + /* Select the station address register set. */ + outb(reg4, ioaddr + 4); + + for (i = 0; i < 8; i++) + checksum += inb(ioaddr + 8 + i); + if ((checksum & 0xff) != 0xff) { + retval = -ENODEV; + goto out; + } + + if (ei_debug && version_printed++ == 0) + printk(version); + + model_name = "SMC Ultra32"; + + for (i = 0; i < 6; i++) + dev->dev_addr[i] = inb(ioaddr + 8 + i); + + printk("%s: %s at 0x%X, %pM", + dev->name, model_name, ioaddr, dev->dev_addr); + + /* Switch from the station address to the alternate register set and + read the useful registers there. */ + outb(0x80 | reg4, ioaddr + 4); + + /* Enable FINE16 mode to avoid BIOS ROM width mismatches @ reboot. */ + outb(0x80 | inb(ioaddr + 0x0c), ioaddr + 0x0c); + + /* Reset RAM addr. */ + outb(0x00, ioaddr + 0x0b); + + /* Switch back to the station address register set so that the + MS-DOS driver can find the card after a warm boot. */ + outb(reg4, ioaddr + 4); + + if ((inb(ioaddr + ULTRA32_CFG5) & 0x40) == 0) { + printk("\nsmc-ultra32: Card RAM is disabled! " + "Run EISA config utility.\n"); + retval = -ENODEV; + goto out; + } + if ((inb(ioaddr + ULTRA32_CFG2) & 0x04) == 0) + printk("\nsmc-ultra32: Ignoring Bus-Master enable bit. " + "Run EISA config utility.\n"); + + if (dev->irq < 2) { + unsigned char irqmap[] = {0, 9, 3, 5, 7, 10, 11, 15}; + int irq = irqmap[inb(ioaddr + ULTRA32_CFG5) & 0x07]; + if (irq == 0) { + printk(", failed to detect IRQ line.\n"); + retval = -EAGAIN; + goto out; + } + dev->irq = irq; + } + + /* The 8390 isn't at the base address, so fake the offset */ + dev->base_addr = ioaddr + ULTRA32_NIC_OFFSET; + + /* Save RAM address in the unused reg0 to avoid excess inb's. */ + ei_status.reg0 = inb(ioaddr + ULTRA32_CFG3) & 0xfc; + + dev->mem_start = 0xc0000 + ((ei_status.reg0 & 0x7c) << 11); + + ei_status.name = model_name; + ei_status.word16 = 1; + ei_status.tx_start_page = 0; + ei_status.rx_start_page = TX_PAGES; + /* All Ultra32 cards have 32KB memory with an 8KB window. */ + ei_status.stop_page = 128; + + ei_status.mem = ioremap(dev->mem_start, 0x2000); + if (!ei_status.mem) { + printk(", failed to ioremap.\n"); + retval = -ENOMEM; + goto out; + } + dev->mem_end = dev->mem_start + 0x1fff; + + printk(", IRQ %d, 32KB memory, 8KB window at 0x%lx-0x%lx.\n", + dev->irq, dev->mem_start, dev->mem_end); + ei_status.block_input = &ultra32_block_input; + ei_status.block_output = &ultra32_block_output; + ei_status.get_8390_hdr = &ultra32_get_8390_hdr; + ei_status.reset_8390 = &ultra32_reset_8390; + + dev->netdev_ops = &ultra32_netdev_ops; + NS8390_init(dev, 0); + + return 0; +out: + release_region(ioaddr, ULTRA32_IO_EXTENT); + return retval; +} + +static int ultra32_open(struct net_device *dev) +{ + int ioaddr = dev->base_addr - ULTRA32_NIC_OFFSET; /* ASIC addr */ + int irq_flags = (inb(ioaddr + ULTRA32_CFG5) & 0x08) ? 0 : IRQF_SHARED; + int retval; + + retval = request_irq(dev->irq, ei_interrupt, irq_flags, dev->name, dev); + if (retval) + return retval; + + outb(ULTRA32_MEMENB, ioaddr); /* Enable Shared Memory. */ + outb(0x80, ioaddr + ULTRA32_CFG6); /* Enable Interrupts. */ + outb(0x84, ioaddr + 5); /* Enable MEM16 & Disable Bus Master. */ + outb(0x01, ioaddr + 6); /* Enable Interrupts. */ + /* Set the early receive warning level in window 0 high enough not + to receive ERW interrupts. */ + outb_p(E8390_NODMA+E8390_PAGE0, dev->base_addr); + outb(0xff, dev->base_addr + EN0_ERWCNT); + ei_open(dev); + return 0; +} + +static int ultra32_close(struct net_device *dev) +{ + int ioaddr = dev->base_addr - ULTRA32_NIC_OFFSET; /* CMDREG */ + + netif_stop_queue(dev); + + if (ei_debug > 1) + printk("%s: Shutting down ethercard.\n", dev->name); + + outb(0x00, ioaddr + ULTRA32_CFG6); /* Disable Interrupts. */ + outb(0x00, ioaddr + 6); /* Disable interrupts. */ + free_irq(dev->irq, dev); + + NS8390_init(dev, 0); + + return 0; +} + +static void ultra32_reset_8390(struct net_device *dev) +{ + int ioaddr = dev->base_addr - ULTRA32_NIC_OFFSET; /* ASIC base addr */ + + outb(ULTRA32_RESET, ioaddr); + if (ei_debug > 1) printk("resetting Ultra32, t=%ld...", jiffies); + ei_status.txing = 0; + + outb(ULTRA32_MEMENB, ioaddr); /* Enable Shared Memory. */ + outb(0x80, ioaddr + ULTRA32_CFG6); /* Enable Interrupts. */ + outb(0x84, ioaddr + 5); /* Enable MEM16 & Disable Bus Master. */ + outb(0x01, ioaddr + 6); /* Enable Interrupts. */ + if (ei_debug > 1) printk("reset done\n"); +} + +/* Grab the 8390 specific header. Similar to the block_input routine, but + we don't need to be concerned with ring wrap as the header will be at + the start of a page, so we optimize accordingly. */ + +static void ultra32_get_8390_hdr(struct net_device *dev, + struct e8390_pkt_hdr *hdr, + int ring_page) +{ + void __iomem *hdr_start = ei_status.mem + ((ring_page & 0x1f) << 8); + unsigned int RamReg = dev->base_addr - ULTRA32_NIC_OFFSET + ULTRA32_CFG3; + + /* Select correct 8KB Window. */ + outb(ei_status.reg0 | ((ring_page & 0x60) >> 5), RamReg); + +#ifdef __BIG_ENDIAN + /* Officially this is what we are doing, but the readl() is faster */ + /* unfortunately it isn't endian aware of the struct */ + memcpy_fromio(hdr, hdr_start, sizeof(struct e8390_pkt_hdr)); + hdr->count = le16_to_cpu(hdr->count); +#else + ((unsigned int*)hdr)[0] = readl(hdr_start); +#endif +} + +/* Block input and output are easy on shared memory ethercards, the only + complication is when the ring buffer wraps, or in this case, when a + packet spans an 8KB boundary. Note that the current 8KB segment is + already set by the get_8390_hdr routine. */ + +static void ultra32_block_input(struct net_device *dev, + int count, + struct sk_buff *skb, + int ring_offset) +{ + void __iomem *xfer_start = ei_status.mem + (ring_offset & 0x1fff); + unsigned int RamReg = dev->base_addr - ULTRA32_NIC_OFFSET + ULTRA32_CFG3; + + if ((ring_offset & ~0x1fff) != ((ring_offset + count - 1) & ~0x1fff)) { + int semi_count = 8192 - (ring_offset & 0x1FFF); + memcpy_fromio(skb->data, xfer_start, semi_count); + count -= semi_count; + if (ring_offset < 96*256) { + /* Select next 8KB Window. */ + ring_offset += semi_count; + outb(ei_status.reg0 | ((ring_offset & 0x6000) >> 13), RamReg); + memcpy_fromio(skb->data + semi_count, ei_status.mem, count); + } else { + /* Select first 8KB Window. */ + outb(ei_status.reg0, RamReg); + memcpy_fromio(skb->data + semi_count, ei_status.mem + TX_PAGES * 256, count); + } + } else { + memcpy_fromio(skb->data, xfer_start, count); + } +} + +static void ultra32_block_output(struct net_device *dev, + int count, + const unsigned char *buf, + int start_page) +{ + void __iomem *xfer_start = ei_status.mem + (start_page<<8); + unsigned int RamReg = dev->base_addr - ULTRA32_NIC_OFFSET + ULTRA32_CFG3; + + /* Select first 8KB Window. */ + outb(ei_status.reg0, RamReg); + + memcpy_toio(xfer_start, buf, count); +} + +#ifdef MODULE +#define MAX_ULTRA32_CARDS 4 /* Max number of Ultra cards per module */ +static struct net_device *dev_ultra[MAX_ULTRA32_CARDS]; + +MODULE_DESCRIPTION("SMC Ultra32 EISA ethernet driver"); +MODULE_LICENSE("GPL"); + +int __init init_module(void) +{ + int this_dev, found = 0; + + for (this_dev = 0; this_dev < MAX_ULTRA32_CARDS; this_dev++) { + struct net_device *dev = ultra32_probe(-1); + if (IS_ERR(dev)) + break; + dev_ultra[found++] = dev; + } + if (found) + return 0; + printk(KERN_WARNING "smc-ultra32.c: No SMC Ultra32 found.\n"); + return -ENXIO; +} + +void __exit cleanup_module(void) +{ + int this_dev; + + for (this_dev = 0; this_dev < MAX_ULTRA32_CARDS; this_dev++) { + struct net_device *dev = dev_ultra[this_dev]; + if (dev) { + unregister_netdev(dev); + cleanup_card(dev); + free_netdev(dev); + } + } +} +#endif /* MODULE */ + diff --git a/drivers/net/ethernet/8390/stnic.c b/drivers/net/ethernet/8390/stnic.c new file mode 100644 index 000000000000..d85f0a84bc7b --- /dev/null +++ b/drivers/net/ethernet/8390/stnic.c @@ -0,0 +1,294 @@ +/* stnic.c : A SH7750 specific part of driver for NS DP83902A ST-NIC. + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Copyright (C) 1999 kaz Kojima + */ + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/interrupt.h> +#include <linux/ioport.h> +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/init.h> +#include <linux/delay.h> + +#include <asm/system.h> +#include <asm/io.h> +#include <mach-se/mach/se.h> +#include <asm/machvec.h> +#ifdef CONFIG_SH_STANDARD_BIOS +#include <asm/sh_bios.h> +#endif + +#include "8390.h" + +#define DRV_NAME "stnic" + +#define byte unsigned char +#define half unsigned short +#define word unsigned int +#define vbyte volatile unsigned char +#define vhalf volatile unsigned short +#define vword volatile unsigned int + +#define STNIC_RUN 0x01 /* 1 == Run, 0 == reset. */ + +#define START_PG 0 /* First page of TX buffer */ +#define STOP_PG 128 /* Last page +1 of RX ring */ + +/* Alias */ +#define STNIC_CR E8390_CMD +#define PG0_RSAR0 EN0_RSARLO +#define PG0_RSAR1 EN0_RSARHI +#define PG0_RBCR0 EN0_RCNTLO +#define PG0_RBCR1 EN0_RCNTHI + +#define CR_RRD E8390_RREAD +#define CR_RWR E8390_RWRITE +#define CR_PG0 E8390_PAGE0 +#define CR_STA E8390_START +#define CR_RDMA E8390_NODMA + +/* FIXME! YOU MUST SET YOUR OWN ETHER ADDRESS. */ +static byte stnic_eadr[6] = +{0x00, 0xc0, 0x6e, 0x00, 0x00, 0x07}; + +static struct net_device *stnic_dev; + +static void stnic_reset (struct net_device *dev); +static void stnic_get_hdr (struct net_device *dev, struct e8390_pkt_hdr *hdr, + int ring_page); +static void stnic_block_input (struct net_device *dev, int count, + struct sk_buff *skb , int ring_offset); +static void stnic_block_output (struct net_device *dev, int count, + const unsigned char *buf, int start_page); + +static void stnic_init (struct net_device *dev); + +/* SH7750 specific read/write io. */ +static inline void +STNIC_DELAY (void) +{ + vword trash; + trash = *(vword *) 0xa0000000; + trash = *(vword *) 0xa0000000; + trash = *(vword *) 0xa0000000; +} + +static inline byte +STNIC_READ (int reg) +{ + byte val; + + val = (*(vhalf *) (PA_83902 + ((reg) << 1)) >> 8) & 0xff; + STNIC_DELAY (); + return val; +} + +static inline void +STNIC_WRITE (int reg, byte val) +{ + *(vhalf *) (PA_83902 + ((reg) << 1)) = ((half) (val) << 8); + STNIC_DELAY (); +} + +static int __init stnic_probe(void) +{ + struct net_device *dev; + int i, err; + + /* If we are not running on a SolutionEngine, give up now */ + if (! MACH_SE) + return -ENODEV; + + /* New style probing API */ + dev = alloc_ei_netdev(); + if (!dev) + return -ENOMEM; + +#ifdef CONFIG_SH_STANDARD_BIOS + sh_bios_get_node_addr (stnic_eadr); +#endif + for (i = 0; i < ETHER_ADDR_LEN; i++) + dev->dev_addr[i] = stnic_eadr[i]; + + /* Set the base address to point to the NIC, not the "real" base! */ + dev->base_addr = 0x1000; + dev->irq = IRQ_STNIC; + dev->netdev_ops = &ei_netdev_ops; + + /* Snarf the interrupt now. There's no point in waiting since we cannot + share and the board will usually be enabled. */ + err = request_irq (dev->irq, ei_interrupt, 0, DRV_NAME, dev); + if (err) { + printk (KERN_EMERG " unable to get IRQ %d.\n", dev->irq); + free_netdev(dev); + return err; + } + + ei_status.name = dev->name; + ei_status.word16 = 1; +#ifdef __LITTLE_ENDIAN__ + ei_status.bigendian = 0; +#else + ei_status.bigendian = 1; +#endif + ei_status.tx_start_page = START_PG; + ei_status.rx_start_page = START_PG + TX_PAGES; + ei_status.stop_page = STOP_PG; + + ei_status.reset_8390 = &stnic_reset; + ei_status.get_8390_hdr = &stnic_get_hdr; + ei_status.block_input = &stnic_block_input; + ei_status.block_output = &stnic_block_output; + + stnic_init (dev); + + err = register_netdev(dev); + if (err) { + free_irq(dev->irq, dev); + free_netdev(dev); + return err; + } + stnic_dev = dev; + + printk (KERN_INFO "NS ST-NIC 83902A\n"); + + return 0; +} + +static void +stnic_reset (struct net_device *dev) +{ + *(vhalf *) PA_83902_RST = 0; + udelay (5); + if (ei_debug > 1) + printk (KERN_WARNING "8390 reset done (%ld).\n", jiffies); + *(vhalf *) PA_83902_RST = ~0; + udelay (5); +} + +static void +stnic_get_hdr (struct net_device *dev, struct e8390_pkt_hdr *hdr, + int ring_page) +{ + half buf[2]; + + STNIC_WRITE (PG0_RSAR0, 0); + STNIC_WRITE (PG0_RSAR1, ring_page); + STNIC_WRITE (PG0_RBCR0, 4); + STNIC_WRITE (PG0_RBCR1, 0); + STNIC_WRITE (STNIC_CR, CR_RRD | CR_PG0 | CR_STA); + + buf[0] = *(vhalf *) PA_83902_IF; + STNIC_DELAY (); + buf[1] = *(vhalf *) PA_83902_IF; + STNIC_DELAY (); + hdr->next = buf[0] >> 8; + hdr->status = buf[0] & 0xff; +#ifdef __LITTLE_ENDIAN__ + hdr->count = buf[1]; +#else + hdr->count = ((buf[1] >> 8) & 0xff) | (buf[1] << 8); +#endif + + if (ei_debug > 1) + printk (KERN_DEBUG "ring %x status %02x next %02x count %04x.\n", + ring_page, hdr->status, hdr->next, hdr->count); + + STNIC_WRITE (STNIC_CR, CR_RDMA | CR_PG0 | CR_STA); +} + +/* Block input and output, similar to the Crynwr packet driver. If you are + porting to a new ethercard look at the packet driver source for hints. + The HP LAN doesn't use shared memory -- we put the packet + out through the "remote DMA" dataport. */ + +static void +stnic_block_input (struct net_device *dev, int length, struct sk_buff *skb, + int offset) +{ + char *buf = skb->data; + half val; + + STNIC_WRITE (PG0_RSAR0, offset & 0xff); + STNIC_WRITE (PG0_RSAR1, offset >> 8); + STNIC_WRITE (PG0_RBCR0, length & 0xff); + STNIC_WRITE (PG0_RBCR1, length >> 8); + STNIC_WRITE (STNIC_CR, CR_RRD | CR_PG0 | CR_STA); + + if (length & 1) + length++; + + while (length > 0) + { + val = *(vhalf *) PA_83902_IF; +#ifdef __LITTLE_ENDIAN__ + *buf++ = val & 0xff; + *buf++ = val >> 8; +#else + *buf++ = val >> 8; + *buf++ = val & 0xff; +#endif + STNIC_DELAY (); + length -= sizeof (half); + } + + STNIC_WRITE (STNIC_CR, CR_RDMA | CR_PG0 | CR_STA); +} + +static void +stnic_block_output (struct net_device *dev, int length, + const unsigned char *buf, int output_page) +{ + STNIC_WRITE (PG0_RBCR0, 1); /* Write non-zero value */ + STNIC_WRITE (STNIC_CR, CR_RRD | CR_PG0 | CR_STA); + STNIC_DELAY (); + + STNIC_WRITE (PG0_RBCR0, length & 0xff); + STNIC_WRITE (PG0_RBCR1, length >> 8); + STNIC_WRITE (PG0_RSAR0, 0); + STNIC_WRITE (PG0_RSAR1, output_page); + STNIC_WRITE (STNIC_CR, CR_RWR | CR_PG0 | CR_STA); + + if (length & 1) + length++; + + while (length > 0) + { +#ifdef __LITTLE_ENDIAN__ + *(vhalf *) PA_83902_IF = ((half) buf[1] << 8) | buf[0]; +#else + *(vhalf *) PA_83902_IF = ((half) buf[0] << 8) | buf[1]; +#endif + STNIC_DELAY (); + buf += sizeof (half); + length -= sizeof (half); + } + + STNIC_WRITE (STNIC_CR, CR_RDMA | CR_PG0 | CR_STA); +} + +/* This function resets the STNIC if something screws up. */ +static void +stnic_init (struct net_device *dev) +{ + stnic_reset (dev); + NS8390_init (dev, 0); +} + +static void __exit stnic_cleanup(void) +{ + unregister_netdev(stnic_dev); + free_irq(stnic_dev->irq, stnic_dev); + free_netdev(stnic_dev); +} + +module_init(stnic_probe); +module_exit(stnic_cleanup); +MODULE_LICENSE("GPL"); diff --git a/drivers/net/ethernet/8390/wd.c b/drivers/net/ethernet/8390/wd.c new file mode 100644 index 000000000000..8831a3393ecf --- /dev/null +++ b/drivers/net/ethernet/8390/wd.c @@ -0,0 +1,567 @@ +/* wd.c: A WD80x3 ethernet driver for linux. */ +/* + Written 1993-94 by Donald Becker. + + Copyright 1993 United States Government as represented by the + Director, National Security Agency. + + This software may be used and distributed according to the terms + of the GNU General Public License, incorporated herein by reference. + + The author may be reached as becker@scyld.com, or C/O + Scyld Computing Corporation + 410 Severn Ave., Suite 210 + Annapolis MD 21403 + + This is a driver for WD8003 and WD8013 "compatible" ethercards. + + Thanks to Russ Nelson (nelson@crnwyr.com) for loaning me a WD8013. + + Changelog: + + Paul Gortmaker : multiple card support for module users, support + for non-standard memory sizes. + + +*/ + +static const char version[] = + "wd.c:v1.10 9/23/94 Donald Becker (becker@cesdis.gsfc.nasa.gov)\n"; + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/string.h> +#include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/delay.h> +#include <linux/netdevice.h> +#include <linux/etherdevice.h> + +#include <asm/io.h> +#include <asm/system.h> + +#include "8390.h" + +#define DRV_NAME "wd" + +/* A zero-terminated list of I/O addresses to be probed. */ +static unsigned int wd_portlist[] __initdata = +{0x300, 0x280, 0x380, 0x240, 0}; + +static int wd_probe1(struct net_device *dev, int ioaddr); + +static int wd_open(struct net_device *dev); +static void wd_reset_8390(struct net_device *dev); +static void wd_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, + int ring_page); +static void wd_block_input(struct net_device *dev, int count, + struct sk_buff *skb, int ring_offset); +static void wd_block_output(struct net_device *dev, int count, + const unsigned char *buf, int start_page); +static int wd_close(struct net_device *dev); + + +#define WD_START_PG 0x00 /* First page of TX buffer */ +#define WD03_STOP_PG 0x20 /* Last page +1 of RX ring */ +#define WD13_STOP_PG 0x40 /* Last page +1 of RX ring */ + +#define WD_CMDREG 0 /* Offset to ASIC command register. */ +#define WD_RESET 0x80 /* Board reset, in WD_CMDREG. */ +#define WD_MEMENB 0x40 /* Enable the shared memory. */ +#define WD_CMDREG5 5 /* Offset to 16-bit-only ASIC register 5. */ +#define ISA16 0x80 /* Enable 16 bit access from the ISA bus. */ +#define NIC16 0x40 /* Enable 16 bit access from the 8390. */ +#define WD_NIC_OFFSET 16 /* Offset to the 8390 from the base_addr. */ +#define WD_IO_EXTENT 32 + + +/* Probe for the WD8003 and WD8013. These cards have the station + address PROM at I/O ports <base>+8 to <base>+13, with a checksum + following. A Soundblaster can have the same checksum as an WDethercard, + so we have an extra exclusionary check for it. + + The wd_probe1() routine initializes the card and fills the + station address field. */ + +static int __init do_wd_probe(struct net_device *dev) +{ + int i; + struct resource *r; + int base_addr = dev->base_addr; + int irq = dev->irq; + int mem_start = dev->mem_start; + int mem_end = dev->mem_end; + + if (base_addr > 0x1ff) { /* Check a user specified location. */ + r = request_region(base_addr, WD_IO_EXTENT, "wd-probe"); + if ( r == NULL) + return -EBUSY; + i = wd_probe1(dev, base_addr); + if (i != 0) + release_region(base_addr, WD_IO_EXTENT); + else + r->name = dev->name; + return i; + } + else if (base_addr != 0) /* Don't probe at all. */ + return -ENXIO; + + for (i = 0; wd_portlist[i]; i++) { + int ioaddr = wd_portlist[i]; + r = request_region(ioaddr, WD_IO_EXTENT, "wd-probe"); + if (r == NULL) + continue; + if (wd_probe1(dev, ioaddr) == 0) { + r->name = dev->name; + return 0; + } + release_region(ioaddr, WD_IO_EXTENT); + dev->irq = irq; + dev->mem_start = mem_start; + dev->mem_end = mem_end; + } + + return -ENODEV; +} + +#ifndef MODULE +struct net_device * __init wd_probe(int unit) +{ + struct net_device *dev = alloc_ei_netdev(); + int err; + + if (!dev) + return ERR_PTR(-ENOMEM); + + sprintf(dev->name, "eth%d", unit); + netdev_boot_setup_check(dev); + + err = do_wd_probe(dev); + if (err) + goto out; + return dev; +out: + free_netdev(dev); + return ERR_PTR(err); +} +#endif + +static const struct net_device_ops wd_netdev_ops = { + .ndo_open = wd_open, + .ndo_stop = wd_close, + .ndo_start_xmit = ei_start_xmit, + .ndo_tx_timeout = ei_tx_timeout, + .ndo_get_stats = ei_get_stats, + .ndo_set_multicast_list = ei_set_multicast_list, + .ndo_validate_addr = eth_validate_addr, + .ndo_set_mac_address = eth_mac_addr, + .ndo_change_mtu = eth_change_mtu, +#ifdef CONFIG_NET_POLL_CONTROLLER + .ndo_poll_controller = ei_poll, +#endif +}; + +static int __init wd_probe1(struct net_device *dev, int ioaddr) +{ + int i; + int err; + int checksum = 0; + int ancient = 0; /* An old card without config registers. */ + int word16 = 0; /* 0 = 8 bit, 1 = 16 bit */ + const char *model_name; + static unsigned version_printed; + + for (i = 0; i < 8; i++) + checksum += inb(ioaddr + 8 + i); + if (inb(ioaddr + 8) == 0xff /* Extra check to avoid soundcard. */ + || inb(ioaddr + 9) == 0xff + || (checksum & 0xff) != 0xFF) + return -ENODEV; + + /* Check for semi-valid mem_start/end values if supplied. */ + if ((dev->mem_start % 0x2000) || (dev->mem_end % 0x2000)) { + printk(KERN_WARNING "wd.c: user supplied mem_start or mem_end not on 8kB boundary - ignored.\n"); + dev->mem_start = 0; + dev->mem_end = 0; + } + + if (ei_debug && version_printed++ == 0) + printk(version); + + for (i = 0; i < 6; i++) + dev->dev_addr[i] = inb(ioaddr + 8 + i); + + printk("%s: WD80x3 at %#3x, %pM", + dev->name, ioaddr, dev->dev_addr); + + /* The following PureData probe code was contributed by + Mike Jagdis <jaggy@purplet.demon.co.uk>. Puredata does software + configuration differently from others so we have to check for them. + This detects an 8 bit, 16 bit or dumb (Toshiba, jumpered) card. + */ + if (inb(ioaddr+0) == 'P' && inb(ioaddr+1) == 'D') { + unsigned char reg5 = inb(ioaddr+5); + + switch (inb(ioaddr+2)) { + case 0x03: word16 = 0; model_name = "PDI8023-8"; break; + case 0x05: word16 = 0; model_name = "PDUC8023"; break; + case 0x0a: word16 = 1; model_name = "PDI8023-16"; break; + /* Either 0x01 (dumb) or they've released a new version. */ + default: word16 = 0; model_name = "PDI8023"; break; + } + dev->mem_start = ((reg5 & 0x1c) + 0xc0) << 12; + dev->irq = (reg5 & 0xe0) == 0xe0 ? 10 : (reg5 >> 5) + 1; + } else { /* End of PureData probe */ + /* This method of checking for a 16-bit board is borrowed from the + we.c driver. A simpler method is just to look in ASIC reg. 0x03. + I'm comparing the two method in alpha test to make certain they + return the same result. */ + /* Check for the old 8 bit board - it has register 0/8 aliasing. + Do NOT check i>=6 here -- it hangs the old 8003 boards! */ + for (i = 0; i < 6; i++) + if (inb(ioaddr+i) != inb(ioaddr+8+i)) + break; + if (i >= 6) { + ancient = 1; + model_name = "WD8003-old"; + word16 = 0; + } else { + int tmp = inb(ioaddr+1); /* fiddle with 16bit bit */ + outb( tmp ^ 0x01, ioaddr+1 ); /* attempt to clear 16bit bit */ + if (((inb( ioaddr+1) & 0x01) == 0x01) /* A 16 bit card */ + && (tmp & 0x01) == 0x01 ) { /* In a 16 slot. */ + int asic_reg5 = inb(ioaddr+WD_CMDREG5); + /* Magic to set ASIC to word-wide mode. */ + outb( NIC16 | (asic_reg5&0x1f), ioaddr+WD_CMDREG5); + outb(tmp, ioaddr+1); + model_name = "WD8013"; + word16 = 1; /* We have a 16bit board here! */ + } else { + model_name = "WD8003"; + word16 = 0; + } + outb(tmp, ioaddr+1); /* Restore original reg1 value. */ + } +#ifndef final_version + if ( !ancient && (inb(ioaddr+1) & 0x01) != (word16 & 0x01)) + printk("\nWD80?3: Bus width conflict, %d (probe) != %d (reg report).", + word16 ? 16 : 8, (inb(ioaddr+1) & 0x01) ? 16 : 8); +#endif + } + +#if defined(WD_SHMEM) && WD_SHMEM > 0x80000 + /* Allow a compile-time override. */ + dev->mem_start = WD_SHMEM; +#else + if (dev->mem_start == 0) { + /* Sanity and old 8003 check */ + int reg0 = inb(ioaddr); + if (reg0 == 0xff || reg0 == 0) { + /* Future plan: this could check a few likely locations first. */ + dev->mem_start = 0xd0000; + printk(" assigning address %#lx", dev->mem_start); + } else { + int high_addr_bits = inb(ioaddr+WD_CMDREG5) & 0x1f; + /* Some boards don't have the register 5 -- it returns 0xff. */ + if (high_addr_bits == 0x1f || word16 == 0) + high_addr_bits = 0x01; + dev->mem_start = ((reg0&0x3f) << 13) + (high_addr_bits << 19); + } + } +#endif + + /* The 8390 isn't at the base address -- the ASIC regs are there! */ + dev->base_addr = ioaddr+WD_NIC_OFFSET; + + if (dev->irq < 2) { + static const int irqmap[] = {9, 3, 5, 7, 10, 11, 15, 4}; + int reg1 = inb(ioaddr+1); + int reg4 = inb(ioaddr+4); + if (ancient || reg1 == 0xff) { /* Ack!! No way to read the IRQ! */ + short nic_addr = ioaddr+WD_NIC_OFFSET; + unsigned long irq_mask; + + /* We have an old-style ethercard that doesn't report its IRQ + line. Do autoirq to find the IRQ line. Note that this IS NOT + a reliable way to trigger an interrupt. */ + outb_p(E8390_NODMA + E8390_STOP, nic_addr); + outb(0x00, nic_addr+EN0_IMR); /* Disable all intrs. */ + + irq_mask = probe_irq_on(); + outb_p(0xff, nic_addr + EN0_IMR); /* Enable all interrupts. */ + outb_p(0x00, nic_addr + EN0_RCNTLO); + outb_p(0x00, nic_addr + EN0_RCNTHI); + outb(E8390_RREAD+E8390_START, nic_addr); /* Trigger it... */ + mdelay(20); + dev->irq = probe_irq_off(irq_mask); + + outb_p(0x00, nic_addr+EN0_IMR); /* Mask all intrs. again. */ + + if (ei_debug > 2) + printk(" autoirq is %d", dev->irq); + if (dev->irq < 2) + dev->irq = word16 ? 10 : 5; + } else + dev->irq = irqmap[((reg4 >> 5) & 0x03) + (reg1 & 0x04)]; + } else if (dev->irq == 2) /* Fixup bogosity: IRQ2 is really IRQ9 */ + dev->irq = 9; + + /* Snarf the interrupt now. There's no point in waiting since we cannot + share and the board will usually be enabled. */ + i = request_irq(dev->irq, ei_interrupt, 0, DRV_NAME, dev); + if (i) { + printk (" unable to get IRQ %d.\n", dev->irq); + return i; + } + + /* OK, were are certain this is going to work. Setup the device. */ + ei_status.name = model_name; + ei_status.word16 = word16; + ei_status.tx_start_page = WD_START_PG; + ei_status.rx_start_page = WD_START_PG + TX_PAGES; + + /* Don't map in the shared memory until the board is actually opened. */ + + /* Some cards (eg WD8003EBT) can be jumpered for more (32k!) memory. */ + if (dev->mem_end != 0) { + ei_status.stop_page = (dev->mem_end - dev->mem_start)/256; + ei_status.priv = dev->mem_end - dev->mem_start; + } else { + ei_status.stop_page = word16 ? WD13_STOP_PG : WD03_STOP_PG; + dev->mem_end = dev->mem_start + (ei_status.stop_page - WD_START_PG)*256; + ei_status.priv = (ei_status.stop_page - WD_START_PG)*256; + } + + ei_status.mem = ioremap(dev->mem_start, ei_status.priv); + if (!ei_status.mem) { + free_irq(dev->irq, dev); + return -ENOMEM; + } + + printk(" %s, IRQ %d, shared memory at %#lx-%#lx.\n", + model_name, dev->irq, dev->mem_start, dev->mem_end-1); + + ei_status.reset_8390 = wd_reset_8390; + ei_status.block_input = wd_block_input; + ei_status.block_output = wd_block_output; + ei_status.get_8390_hdr = wd_get_8390_hdr; + + dev->netdev_ops = &wd_netdev_ops; + NS8390_init(dev, 0); + +#if 1 + /* Enable interrupt generation on softconfig cards -- M.U */ + /* .. but possibly potentially unsafe - Donald */ + if (inb(ioaddr+14) & 0x20) + outb(inb(ioaddr+4)|0x80, ioaddr+4); +#endif + + err = register_netdev(dev); + if (err) { + free_irq(dev->irq, dev); + iounmap(ei_status.mem); + } + return err; +} + +static int +wd_open(struct net_device *dev) +{ + int ioaddr = dev->base_addr - WD_NIC_OFFSET; /* WD_CMDREG */ + + /* Map in the shared memory. Always set register 0 last to remain + compatible with very old boards. */ + ei_status.reg0 = ((dev->mem_start>>13) & 0x3f) | WD_MEMENB; + ei_status.reg5 = ((dev->mem_start>>19) & 0x1f) | NIC16; + + if (ei_status.word16) + outb(ei_status.reg5, ioaddr+WD_CMDREG5); + outb(ei_status.reg0, ioaddr); /* WD_CMDREG */ + + return ei_open(dev); +} + +static void +wd_reset_8390(struct net_device *dev) +{ + int wd_cmd_port = dev->base_addr - WD_NIC_OFFSET; /* WD_CMDREG */ + + outb(WD_RESET, wd_cmd_port); + if (ei_debug > 1) printk("resetting the WD80x3 t=%lu...", jiffies); + ei_status.txing = 0; + + /* Set up the ASIC registers, just in case something changed them. */ + outb((((dev->mem_start>>13) & 0x3f)|WD_MEMENB), wd_cmd_port); + if (ei_status.word16) + outb(NIC16 | ((dev->mem_start>>19) & 0x1f), wd_cmd_port+WD_CMDREG5); + + if (ei_debug > 1) printk("reset done\n"); +} + +/* Grab the 8390 specific header. Similar to the block_input routine, but + we don't need to be concerned with ring wrap as the header will be at + the start of a page, so we optimize accordingly. */ + +static void +wd_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page) +{ + + int wd_cmdreg = dev->base_addr - WD_NIC_OFFSET; /* WD_CMDREG */ + void __iomem *hdr_start = ei_status.mem + ((ring_page - WD_START_PG)<<8); + + /* We'll always get a 4 byte header read followed by a packet read, so + we enable 16 bit mode before the header, and disable after the body. */ + if (ei_status.word16) + outb(ISA16 | ei_status.reg5, wd_cmdreg+WD_CMDREG5); + +#ifdef __BIG_ENDIAN + /* Officially this is what we are doing, but the readl() is faster */ + /* unfortunately it isn't endian aware of the struct */ + memcpy_fromio(hdr, hdr_start, sizeof(struct e8390_pkt_hdr)); + hdr->count = le16_to_cpu(hdr->count); +#else + ((unsigned int*)hdr)[0] = readl(hdr_start); +#endif +} + +/* Block input and output are easy on shared memory ethercards, and trivial + on the Western digital card where there is no choice of how to do it. + The only complications are that the ring buffer wraps, and need to map + switch between 8- and 16-bit modes. */ + +static void +wd_block_input(struct net_device *dev, int count, struct sk_buff *skb, int ring_offset) +{ + int wd_cmdreg = dev->base_addr - WD_NIC_OFFSET; /* WD_CMDREG */ + unsigned long offset = ring_offset - (WD_START_PG<<8); + void __iomem *xfer_start = ei_status.mem + offset; + + if (offset + count > ei_status.priv) { + /* We must wrap the input move. */ + int semi_count = ei_status.priv - offset; + memcpy_fromio(skb->data, xfer_start, semi_count); + count -= semi_count; + memcpy_fromio(skb->data + semi_count, ei_status.mem + TX_PAGES * 256, count); + } else { + /* Packet is in one chunk -- we can copy + cksum. */ + memcpy_fromio(skb->data, xfer_start, count); + } + + /* Turn off 16 bit access so that reboot works. ISA brain-damage */ + if (ei_status.word16) + outb(ei_status.reg5, wd_cmdreg+WD_CMDREG5); +} + +static void +wd_block_output(struct net_device *dev, int count, const unsigned char *buf, + int start_page) +{ + int wd_cmdreg = dev->base_addr - WD_NIC_OFFSET; /* WD_CMDREG */ + void __iomem *shmem = ei_status.mem + ((start_page - WD_START_PG)<<8); + + + if (ei_status.word16) { + /* Turn on and off 16 bit access so that reboot works. */ + outb(ISA16 | ei_status.reg5, wd_cmdreg+WD_CMDREG5); + memcpy_toio(shmem, buf, count); + outb(ei_status.reg5, wd_cmdreg+WD_CMDREG5); + } else + memcpy_toio(shmem, buf, count); +} + + +static int +wd_close(struct net_device *dev) +{ + int wd_cmdreg = dev->base_addr - WD_NIC_OFFSET; /* WD_CMDREG */ + + if (ei_debug > 1) + printk("%s: Shutting down ethercard.\n", dev->name); + ei_close(dev); + + /* Change from 16-bit to 8-bit shared memory so reboot works. */ + if (ei_status.word16) + outb(ei_status.reg5, wd_cmdreg + WD_CMDREG5 ); + + /* And disable the shared memory. */ + outb(ei_status.reg0 & ~WD_MEMENB, wd_cmdreg); + + return 0; +} + + +#ifdef MODULE +#define MAX_WD_CARDS 4 /* Max number of wd cards per module */ +static struct net_device *dev_wd[MAX_WD_CARDS]; +static int io[MAX_WD_CARDS]; +static int irq[MAX_WD_CARDS]; +static int mem[MAX_WD_CARDS]; +static int mem_end[MAX_WD_CARDS]; /* for non std. mem size */ + +module_param_array(io, int, NULL, 0); +module_param_array(irq, int, NULL, 0); +module_param_array(mem, int, NULL, 0); +module_param_array(mem_end, int, NULL, 0); +MODULE_PARM_DESC(io, "I/O base address(es)"); +MODULE_PARM_DESC(irq, "IRQ number(s) (ignored for PureData boards)"); +MODULE_PARM_DESC(mem, "memory base address(es)(ignored for PureData boards)"); +MODULE_PARM_DESC(mem_end, "memory end address(es)"); +MODULE_DESCRIPTION("ISA Western Digital wd8003/wd8013 ; SMC Elite, Elite16 ethernet driver"); +MODULE_LICENSE("GPL"); + +/* This is set up so that only a single autoprobe takes place per call. +ISA device autoprobes on a running machine are not recommended. */ + +int __init init_module(void) +{ + struct net_device *dev; + int this_dev, found = 0; + + for (this_dev = 0; this_dev < MAX_WD_CARDS; this_dev++) { + if (io[this_dev] == 0) { + if (this_dev != 0) break; /* only autoprobe 1st one */ + printk(KERN_NOTICE "wd.c: Presently autoprobing (not recommended) for a single card.\n"); + } + dev = alloc_ei_netdev(); + if (!dev) + break; + dev->irq = irq[this_dev]; + dev->base_addr = io[this_dev]; + dev->mem_start = mem[this_dev]; + dev->mem_end = mem_end[this_dev]; + if (do_wd_probe(dev) == 0) { + dev_wd[found++] = dev; + continue; + } + free_netdev(dev); + printk(KERN_WARNING "wd.c: No wd80x3 card found (i/o = 0x%x).\n", io[this_dev]); + break; + } + if (found) + return 0; + return -ENXIO; +} + +static void cleanup_card(struct net_device *dev) +{ + free_irq(dev->irq, dev); + release_region(dev->base_addr - WD_NIC_OFFSET, WD_IO_EXTENT); + iounmap(ei_status.mem); +} + +void __exit +cleanup_module(void) +{ + int this_dev; + + for (this_dev = 0; this_dev < MAX_WD_CARDS; this_dev++) { + struct net_device *dev = dev_wd[this_dev]; + if (dev) { + unregister_netdev(dev); + cleanup_card(dev); + free_netdev(dev); + } + } +} +#endif /* MODULE */ diff --git a/drivers/net/ethernet/8390/zorro8390.c b/drivers/net/ethernet/8390/zorro8390.c new file mode 100644 index 000000000000..15e7751a273c --- /dev/null +++ b/drivers/net/ethernet/8390/zorro8390.c @@ -0,0 +1,452 @@ +/* + * Amiga Linux/m68k and Linux/PPC Zorro NS8390 Ethernet Driver + * + * (C) Copyright 1998-2000 by some Elitist 680x0 Users(TM) + * + * --------------------------------------------------------------------------- + * + * This program is based on all the other NE2000 drivers for Linux + * + * --------------------------------------------------------------------------- + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of the Linux + * distribution for more details. + * + * --------------------------------------------------------------------------- + * + * The Ariadne II and X-Surf are Zorro-II boards containing Realtek RTL8019AS + * Ethernet Controllers. + */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/init.h> +#include <linux/delay.h> +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/zorro.h> +#include <linux/jiffies.h> + +#include <asm/system.h> +#include <asm/irq.h> +#include <asm/amigaints.h> +#include <asm/amigahw.h> + +#define EI_SHIFT(x) (ei_local->reg_offset[x]) +#define ei_inb(port) in_8(port) +#define ei_outb(val, port) out_8(port, val) +#define ei_inb_p(port) in_8(port) +#define ei_outb_p(val, port) out_8(port, val) + +static const char version[] = + "8390.c:v1.10cvs 9/23/94 Donald Becker (becker@cesdis.gsfc.nasa.gov)\n"; + +#include "lib8390.c" + +#define DRV_NAME "zorro8390" + +#define NE_BASE (dev->base_addr) +#define NE_CMD (0x00 * 2) +#define NE_DATAPORT (0x10 * 2) /* NatSemi-defined port window offset */ +#define NE_RESET (0x1f * 2) /* Issue a read to reset, + * a write to clear. */ +#define NE_IO_EXTENT (0x20 * 2) + +#define NE_EN0_ISR (0x07 * 2) +#define NE_EN0_DCFG (0x0e * 2) + +#define NE_EN0_RSARLO (0x08 * 2) +#define NE_EN0_RSARHI (0x09 * 2) +#define NE_EN0_RCNTLO (0x0a * 2) +#define NE_EN0_RXCR (0x0c * 2) +#define NE_EN0_TXCR (0x0d * 2) +#define NE_EN0_RCNTHI (0x0b * 2) +#define NE_EN0_IMR (0x0f * 2) + +#define NESM_START_PG 0x40 /* First page of TX buffer */ +#define NESM_STOP_PG 0x80 /* Last page +1 of RX ring */ + +#define WORDSWAP(a) ((((a) >> 8) & 0xff) | ((a) << 8)) + +static struct card_info { + zorro_id id; + const char *name; + unsigned int offset; +} cards[] __devinitdata = { + { ZORRO_PROD_VILLAGE_TRONIC_ARIADNE2, "Ariadne II", 0x0600 }, + { ZORRO_PROD_INDIVIDUAL_COMPUTERS_X_SURF, "X-Surf", 0x8600 }, +}; + +/* Hard reset the card. This used to pause for the same period that a + * 8390 reset command required, but that shouldn't be necessary. + */ +static void zorro8390_reset_8390(struct net_device *dev) +{ + unsigned long reset_start_time = jiffies; + + if (ei_debug > 1) + netdev_dbg(dev, "resetting - t=%ld...\n", jiffies); + + z_writeb(z_readb(NE_BASE + NE_RESET), NE_BASE + NE_RESET); + + ei_status.txing = 0; + ei_status.dmaing = 0; + + /* This check _should_not_ be necessary, omit eventually. */ + while ((z_readb(NE_BASE + NE_EN0_ISR) & ENISR_RESET) == 0) + if (time_after(jiffies, reset_start_time + 2 * HZ / 100)) { + netdev_warn(dev, "%s: did not complete\n", __func__); + break; + } + z_writeb(ENISR_RESET, NE_BASE + NE_EN0_ISR); /* Ack intr */ +} + +/* Grab the 8390 specific header. Similar to the block_input routine, but + * we don't need to be concerned with ring wrap as the header will be at + * the start of a page, so we optimize accordingly. + */ +static void zorro8390_get_8390_hdr(struct net_device *dev, + struct e8390_pkt_hdr *hdr, int ring_page) +{ + int nic_base = dev->base_addr; + int cnt; + short *ptrs; + + /* This *shouldn't* happen. + * If it does, it's the last thing you'll see + */ + if (ei_status.dmaing) { + netdev_err(dev, "%s: DMAing conflict [DMAstat:%d][irqlock:%d]\n", + __func__, ei_status.dmaing, ei_status.irqlock); + return; + } + + ei_status.dmaing |= 0x01; + z_writeb(E8390_NODMA + E8390_PAGE0 + E8390_START, nic_base + NE_CMD); + z_writeb(ENISR_RDC, nic_base + NE_EN0_ISR); + z_writeb(sizeof(struct e8390_pkt_hdr), nic_base + NE_EN0_RCNTLO); + z_writeb(0, nic_base + NE_EN0_RCNTHI); + z_writeb(0, nic_base + NE_EN0_RSARLO); /* On page boundary */ + z_writeb(ring_page, nic_base + NE_EN0_RSARHI); + z_writeb(E8390_RREAD+E8390_START, nic_base + NE_CMD); + + ptrs = (short *)hdr; + for (cnt = 0; cnt < sizeof(struct e8390_pkt_hdr) >> 1; cnt++) + *ptrs++ = z_readw(NE_BASE + NE_DATAPORT); + + z_writeb(ENISR_RDC, nic_base + NE_EN0_ISR); /* Ack intr */ + + hdr->count = WORDSWAP(hdr->count); + + ei_status.dmaing &= ~0x01; +} + +/* Block input and output, similar to the Crynwr packet driver. + * If you are porting to a new ethercard, look at the packet driver source + * for hints. The NEx000 doesn't share the on-board packet memory -- + * you have to put the packet out through the "remote DMA" dataport + * using z_writeb. + */ +static void zorro8390_block_input(struct net_device *dev, int count, + struct sk_buff *skb, int ring_offset) +{ + int nic_base = dev->base_addr; + char *buf = skb->data; + short *ptrs; + int cnt; + + /* This *shouldn't* happen. + * If it does, it's the last thing you'll see + */ + if (ei_status.dmaing) { + netdev_err(dev, "%s: DMAing conflict [DMAstat:%d][irqlock:%d]\n", + __func__, ei_status.dmaing, ei_status.irqlock); + return; + } + ei_status.dmaing |= 0x01; + z_writeb(E8390_NODMA + E8390_PAGE0 + E8390_START, nic_base + NE_CMD); + z_writeb(ENISR_RDC, nic_base + NE_EN0_ISR); + z_writeb(count & 0xff, nic_base + NE_EN0_RCNTLO); + z_writeb(count >> 8, nic_base + NE_EN0_RCNTHI); + z_writeb(ring_offset & 0xff, nic_base + NE_EN0_RSARLO); + z_writeb(ring_offset >> 8, nic_base + NE_EN0_RSARHI); + z_writeb(E8390_RREAD+E8390_START, nic_base + NE_CMD); + ptrs = (short *)buf; + for (cnt = 0; cnt < count >> 1; cnt++) + *ptrs++ = z_readw(NE_BASE + NE_DATAPORT); + if (count & 0x01) + buf[count - 1] = z_readb(NE_BASE + NE_DATAPORT); + + z_writeb(ENISR_RDC, nic_base + NE_EN0_ISR); /* Ack intr */ + ei_status.dmaing &= ~0x01; +} + +static void zorro8390_block_output(struct net_device *dev, int count, + const unsigned char *buf, + const int start_page) +{ + int nic_base = NE_BASE; + unsigned long dma_start; + short *ptrs; + int cnt; + + /* Round the count up for word writes. Do we need to do this? + * What effect will an odd byte count have on the 8390? + * I should check someday. + */ + if (count & 0x01) + count++; + + /* This *shouldn't* happen. + * If it does, it's the last thing you'll see + */ + if (ei_status.dmaing) { + netdev_err(dev, "%s: DMAing conflict [DMAstat:%d][irqlock:%d]\n", + __func__, ei_status.dmaing, ei_status.irqlock); + return; + } + ei_status.dmaing |= 0x01; + /* We should already be in page 0, but to be safe... */ + z_writeb(E8390_PAGE0+E8390_START+E8390_NODMA, nic_base + NE_CMD); + + z_writeb(ENISR_RDC, nic_base + NE_EN0_ISR); + + /* Now the normal output. */ + z_writeb(count & 0xff, nic_base + NE_EN0_RCNTLO); + z_writeb(count >> 8, nic_base + NE_EN0_RCNTHI); + z_writeb(0x00, nic_base + NE_EN0_RSARLO); + z_writeb(start_page, nic_base + NE_EN0_RSARHI); + + z_writeb(E8390_RWRITE + E8390_START, nic_base + NE_CMD); + ptrs = (short *)buf; + for (cnt = 0; cnt < count >> 1; cnt++) + z_writew(*ptrs++, NE_BASE + NE_DATAPORT); + + dma_start = jiffies; + + while ((z_readb(NE_BASE + NE_EN0_ISR) & ENISR_RDC) == 0) + if (time_after(jiffies, dma_start + 2 * HZ / 100)) { + /* 20ms */ + netdev_err(dev, "timeout waiting for Tx RDC\n"); + zorro8390_reset_8390(dev); + __NS8390_init(dev, 1); + break; + } + + z_writeb(ENISR_RDC, nic_base + NE_EN0_ISR); /* Ack intr */ + ei_status.dmaing &= ~0x01; +} + +static int zorro8390_open(struct net_device *dev) +{ + __ei_open(dev); + return 0; +} + +static int zorro8390_close(struct net_device *dev) +{ + if (ei_debug > 1) + netdev_dbg(dev, "Shutting down ethercard\n"); + __ei_close(dev); + return 0; +} + +static void __devexit zorro8390_remove_one(struct zorro_dev *z) +{ + struct net_device *dev = zorro_get_drvdata(z); + + unregister_netdev(dev); + free_irq(IRQ_AMIGA_PORTS, dev); + release_mem_region(ZTWO_PADDR(dev->base_addr), NE_IO_EXTENT * 2); + free_netdev(dev); +} + +static struct zorro_device_id zorro8390_zorro_tbl[] __devinitdata = { + { ZORRO_PROD_VILLAGE_TRONIC_ARIADNE2, }, + { ZORRO_PROD_INDIVIDUAL_COMPUTERS_X_SURF, }, + { 0 } +}; +MODULE_DEVICE_TABLE(zorro, zorro8390_zorro_tbl); + +static const struct net_device_ops zorro8390_netdev_ops = { + .ndo_open = zorro8390_open, + .ndo_stop = zorro8390_close, + .ndo_start_xmit = __ei_start_xmit, + .ndo_tx_timeout = __ei_tx_timeout, + .ndo_get_stats = __ei_get_stats, + .ndo_set_multicast_list = __ei_set_multicast_list, + .ndo_validate_addr = eth_validate_addr, + .ndo_set_mac_address = eth_mac_addr, + .ndo_change_mtu = eth_change_mtu, +#ifdef CONFIG_NET_POLL_CONTROLLER + .ndo_poll_controller = __ei_poll, +#endif +}; + +static int __devinit zorro8390_init(struct net_device *dev, + unsigned long board, const char *name, + unsigned long ioaddr) +{ + int i; + int err; + unsigned char SA_prom[32]; + int start_page, stop_page; + static u32 zorro8390_offsets[16] = { + 0x00, 0x02, 0x04, 0x06, 0x08, 0x0a, 0x0c, 0x0e, + 0x10, 0x12, 0x14, 0x16, 0x18, 0x1a, 0x1c, 0x1e, + }; + + /* Reset card. Who knows what dain-bramaged state it was left in. */ + { + unsigned long reset_start_time = jiffies; + + z_writeb(z_readb(ioaddr + NE_RESET), ioaddr + NE_RESET); + + while ((z_readb(ioaddr + NE_EN0_ISR) & ENISR_RESET) == 0) + if (time_after(jiffies, + reset_start_time + 2 * HZ / 100)) { + netdev_warn(dev, "not found (no reset ack)\n"); + return -ENODEV; + } + + z_writeb(0xff, ioaddr + NE_EN0_ISR); /* Ack all intr. */ + } + + /* Read the 16 bytes of station address PROM. + * We must first initialize registers, + * similar to NS8390_init(eifdev, 0). + * We can't reliably read the SAPROM address without this. + * (I learned the hard way!). + */ + { + static const struct { + u32 value; + u32 offset; + } program_seq[] = { + {E8390_NODMA + E8390_PAGE0 + E8390_STOP, NE_CMD}, + /* Select page 0 */ + {0x48, NE_EN0_DCFG}, /* 0x48: Set byte-wide access */ + {0x00, NE_EN0_RCNTLO}, /* Clear the count regs */ + {0x00, NE_EN0_RCNTHI}, + {0x00, NE_EN0_IMR}, /* Mask completion irq */ + {0xFF, NE_EN0_ISR}, + {E8390_RXOFF, NE_EN0_RXCR}, /* 0x20 Set to monitor */ + {E8390_TXOFF, NE_EN0_TXCR}, /* 0x02 and loopback mode */ + {32, NE_EN0_RCNTLO}, + {0x00, NE_EN0_RCNTHI}, + {0x00, NE_EN0_RSARLO}, /* DMA starting at 0x0000 */ + {0x00, NE_EN0_RSARHI}, + {E8390_RREAD + E8390_START, NE_CMD}, + }; + for (i = 0; i < ARRAY_SIZE(program_seq); i++) + z_writeb(program_seq[i].value, + ioaddr + program_seq[i].offset); + } + for (i = 0; i < 16; i++) { + SA_prom[i] = z_readb(ioaddr + NE_DATAPORT); + (void)z_readb(ioaddr + NE_DATAPORT); + } + + /* We must set the 8390 for word mode. */ + z_writeb(0x49, ioaddr + NE_EN0_DCFG); + start_page = NESM_START_PG; + stop_page = NESM_STOP_PG; + + dev->base_addr = ioaddr; + dev->irq = IRQ_AMIGA_PORTS; + + /* Install the Interrupt handler */ + i = request_irq(IRQ_AMIGA_PORTS, __ei_interrupt, + IRQF_SHARED, DRV_NAME, dev); + if (i) + return i; + + for (i = 0; i < ETHER_ADDR_LEN; i++) + dev->dev_addr[i] = SA_prom[i]; + + pr_debug("Found ethernet address: %pM\n", dev->dev_addr); + + ei_status.name = name; + ei_status.tx_start_page = start_page; + ei_status.stop_page = stop_page; + ei_status.word16 = 1; + + ei_status.rx_start_page = start_page + TX_PAGES; + + ei_status.reset_8390 = zorro8390_reset_8390; + ei_status.block_input = zorro8390_block_input; + ei_status.block_output = zorro8390_block_output; + ei_status.get_8390_hdr = zorro8390_get_8390_hdr; + ei_status.reg_offset = zorro8390_offsets; + + dev->netdev_ops = &zorro8390_netdev_ops; + __NS8390_init(dev, 0); + err = register_netdev(dev); + if (err) { + free_irq(IRQ_AMIGA_PORTS, dev); + return err; + } + + netdev_info(dev, "%s at 0x%08lx, Ethernet Address %pM\n", + name, board, dev->dev_addr); + + return 0; +} + +static int __devinit zorro8390_init_one(struct zorro_dev *z, + const struct zorro_device_id *ent) +{ + struct net_device *dev; + unsigned long board, ioaddr; + int err, i; + + for (i = ARRAY_SIZE(cards) - 1; i >= 0; i--) + if (z->id == cards[i].id) + break; + if (i < 0) + return -ENODEV; + + board = z->resource.start; + ioaddr = board + cards[i].offset; + dev = ____alloc_ei_netdev(0); + if (!dev) + return -ENOMEM; + if (!request_mem_region(ioaddr, NE_IO_EXTENT * 2, DRV_NAME)) { + free_netdev(dev); + return -EBUSY; + } + err = zorro8390_init(dev, board, cards[i].name, ZTWO_VADDR(ioaddr)); + if (err) { + release_mem_region(ioaddr, NE_IO_EXTENT * 2); + free_netdev(dev); + return err; + } + zorro_set_drvdata(z, dev); + return 0; +} + +static struct zorro_driver zorro8390_driver = { + .name = "zorro8390", + .id_table = zorro8390_zorro_tbl, + .probe = zorro8390_init_one, + .remove = __devexit_p(zorro8390_remove_one), +}; + +static int __init zorro8390_init_module(void) +{ + return zorro_register_driver(&zorro8390_driver); +} + +static void __exit zorro8390_cleanup_module(void) +{ + zorro_unregister_driver(&zorro8390_driver); +} + +module_init(zorro8390_init_module); +module_exit(zorro8390_cleanup_module); + +MODULE_LICENSE("GPL"); |