Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 2410 insertions, 0 deletions

diff --git a/drivers/net/tokenring/tms380tr.c b/drivers/net/tokenring/tms380tr.c
new file mode 100644
index 000000000000..df43b449e429
--- /dev/null
+++ b/drivers/net/tokenring/tms380tr.c
@@ -0,0 +1,2410 @@
+/*
+ *  tms380tr.c: A network driver library for Texas Instruments TMS380-based
+ *              Token Ring Adapters.
+ *
+ *  Originally sktr.c: Written 1997 by Christoph Goos
+ *
+ *  A fine result of the Linux Systems Network Architecture Project.
+ *  http://www.linux-sna.org
+ *
+ *  This software may be used and distributed according to the terms
+ *  of the GNU General Public License, incorporated herein by reference.
+ *
+ *  The following modules are currently available for card support:
+ *	- tmspci (Generic PCI card support)
+ *	- abyss (Madge PCI support)
+ *      - tmsisa (SysKonnect TR4/16 ISA)
+ *
+ *  Sources:
+ *  	- The hardware related parts of this driver are take from
+ *  	  the SysKonnect Token Ring driver for Windows NT.
+ *  	- I used the IBM Token Ring driver 'ibmtr.c' as a base for this
+ *  	  driver, as well as the 'skeleton.c' driver by Donald Becker.
+ *  	- Also various other drivers in the linux source tree were taken
+ *  	  as samples for some tasks.
+ *      - TI TMS380 Second-Generation Token Ring User's Guide
+ *  	- TI datasheets for respective chips
+ *  	- David Hein at Texas Instruments 
+ *  	- Various Madge employees
+ *
+ *  Maintainer(s):
+ *    JS	Jay Schulist		jschlst@samba.org
+ *    CG	Christoph Goos		cgoos@syskonnect.de
+ *    AF	Adam Fritzler		mid@auk.cx
+ *    MLP       Mike Phillips           phillim@amtrak.com
+ *    JF	Jochen Friedrich	jochen@scram.de
+ *     
+ *  Modification History:
+ *	29-Aug-97	CG	Created
+ *	04-Apr-98	CG	Fixed problems caused by tok_timer_check
+ *	10-Apr-98	CG	Fixed lockups at cable disconnection
+ *	27-May-98	JS	Formated to Linux Kernel Format
+ *	31-May-98	JS	Hacked in PCI support
+ *	16-Jun-98	JS	Modulized for multiple cards with one driver
+ *	   Sep-99	AF	Renamed to tms380tr (supports more than SK's)
+ *      23-Sep-99	AF      Added Compaq and Thomas-Conrad PCI support
+ *				Fixed a bug causing double copies on PCI
+ *				Fixed for new multicast stuff (2.2/2.3)
+ *	25-Sep-99	AF	Uped TPL_NUM from 3 to 9
+ *				Removed extraneous 'No free TPL'
+ *	22-Dec-99	AF	Added Madge PCI Mk2 support and generalized
+ *				parts of the initilization procedure.
+ *	30-Dec-99	AF	Turned tms380tr into a library ala 8390.
+ *				Madge support is provided in the abyss module
+ *				Generic PCI support is in the tmspci module.
+ *	30-Nov-00	JF	Updated PCI code to support IO MMU via
+ *				pci_map_static(). Alpha uses this MMU for ISA
+ *				as well.
+ *      14-Jan-01	JF	Fix DMA on ifdown/ifup sequences. Some 
+ *      			cleanup.
+ *	13-Jan-02	JF	Add spinlock to fix race condition.
+ *	09-Nov-02	JF	Fixed printks to not SPAM the console during
+ *				normal operation.
+ *	30-Dec-02	JF	Removed incorrect __init from 
+ *				tms380tr_init_card.
+ *      			
+ *  To do:
+ *    1. Multi/Broadcast packet handling (this may have fixed itself)
+ *    2. Write a sktrisa module that includes the old ISA support (done)
+ *    3. Allow modules to load their own microcode
+ *    4. Speed up the BUD process -- freezing the kernel for 3+sec is
+ *         quite unacceptable.
+ *    5. Still a few remaining stalls when the cable is unplugged.
+ */
+
+#ifdef MODULE
+static const char version[] = "tms380tr.c: v1.10 30/12/2002 by Christoph Goos, Adam Fritzler\n";
+#endif
+
+#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/in.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <linux/time.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <linux/delay.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+#include <linux/trdevice.h>
+#include <linux/firmware.h>
+#include <linux/bitops.h>
+
+#include <asm/system.h>
+#include <asm/io.h>
+#include <asm/dma.h>
+#include <asm/irq.h>
+#include <asm/uaccess.h>
+
+#include "tms380tr.h"		/* Our Stuff */
+
+/* Use 0 for production, 1 for verification, 2 for debug, and
+ * 3 for very verbose debug.
+ */
+#ifndef TMS380TR_DEBUG
+#define TMS380TR_DEBUG 0
+#endif
+static unsigned int tms380tr_debug = TMS380TR_DEBUG;
+
+static struct device tms_device;
+
+/* Index to functions, as function prototypes.
+ * Alphabetical by function name.
+ */
+
+/* "A" */
+/* "B" */
+static int      tms380tr_bringup_diags(struct net_device *dev);
+/* "C" */
+static void	tms380tr_cancel_tx_queue(struct net_local* tp);
+static int 	tms380tr_chipset_init(struct net_device *dev);
+static void 	tms380tr_chk_irq(struct net_device *dev);
+static void 	tms380tr_chk_outstanding_cmds(struct net_device *dev);
+static void 	tms380tr_chk_src_addr(unsigned char *frame, unsigned char *hw_addr);
+static unsigned char tms380tr_chk_ssb(struct net_local *tp, unsigned short IrqType);
+int	 	tms380tr_close(struct net_device *dev);
+static void 	tms380tr_cmd_status_irq(struct net_device *dev);
+/* "D" */
+static void 	tms380tr_disable_interrupts(struct net_device *dev);
+#if TMS380TR_DEBUG > 0
+static void 	tms380tr_dump(unsigned char *Data, int length);
+#endif
+/* "E" */
+static void 	tms380tr_enable_interrupts(struct net_device *dev);
+static void 	tms380tr_exec_cmd(struct net_device *dev, unsigned short Command);
+static void 	tms380tr_exec_sifcmd(struct net_device *dev, unsigned int WriteValue);
+/* "F" */
+/* "G" */
+static struct net_device_stats *tms380tr_get_stats(struct net_device *dev);
+/* "H" */
+static int 	tms380tr_hardware_send_packet(struct sk_buff *skb,
+			struct net_device *dev);
+/* "I" */
+static int 	tms380tr_init_adapter(struct net_device *dev);
+static void 	tms380tr_init_ipb(struct net_local *tp);
+static void 	tms380tr_init_net_local(struct net_device *dev);
+static void 	tms380tr_init_opb(struct net_device *dev);
+/* "M" */
+/* "O" */
+int		tms380tr_open(struct net_device *dev);
+static void	tms380tr_open_adapter(struct net_device *dev);
+/* "P" */
+/* "R" */
+static void 	tms380tr_rcv_status_irq(struct net_device *dev);
+static int 	tms380tr_read_ptr(struct net_device *dev);
+static void 	tms380tr_read_ram(struct net_device *dev, unsigned char *Data,
+			unsigned short Address, int Length);
+static int 	tms380tr_reset_adapter(struct net_device *dev);
+static void 	tms380tr_reset_interrupt(struct net_device *dev);
+static void 	tms380tr_ring_status_irq(struct net_device *dev);
+/* "S" */
+static int 	tms380tr_send_packet(struct sk_buff *skb, struct net_device *dev);
+static void 	tms380tr_set_multicast_list(struct net_device *dev);
+static int	tms380tr_set_mac_address(struct net_device *dev, void *addr);
+/* "T" */
+static void 	tms380tr_timer_chk(unsigned long data);
+static void 	tms380tr_timer_end_wait(unsigned long data);
+static void 	tms380tr_tx_status_irq(struct net_device *dev);
+/* "U" */
+static void 	tms380tr_update_rcv_stats(struct net_local *tp,
+			unsigned char DataPtr[], unsigned int Length);
+/* "W" */
+void	 	tms380tr_wait(unsigned long time);
+static void 	tms380tr_write_rpl_status(RPL *rpl, unsigned int Status);
+static void 	tms380tr_write_tpl_status(TPL *tpl, unsigned int Status);
+
+#define SIFREADB(reg) (((struct net_local *)dev->priv)->sifreadb(dev, reg))
+#define SIFWRITEB(val, reg) (((struct net_local *)dev->priv)->sifwriteb(dev, val, reg))
+#define SIFREADW(reg) (((struct net_local *)dev->priv)->sifreadw(dev, reg))
+#define SIFWRITEW(val, reg) (((struct net_local *)dev->priv)->sifwritew(dev, val, reg))
+
+
+
+#if 0 /* TMS380TR_DEBUG > 0 */
+static int madgemc_sifprobe(struct net_device *dev)
+{
+        unsigned char old, chk1, chk2;
+	
+	old = SIFREADB(SIFADR);  /* Get the old SIFADR value */
+
+        chk1 = 0;       /* Begin with check value 0 */
+        do {
+		madgemc_setregpage(dev, 0);
+                /* Write new SIFADR value */
+		SIFWRITEB(chk1, SIFADR);
+		chk2 = SIFREADB(SIFADR);
+		if (chk2 != chk1)
+			return -1;
+		
+		madgemc_setregpage(dev, 1);
+                /* Read, invert and write */
+		chk2 = SIFREADB(SIFADD);
+		if (chk2 != chk1)
+			return -1;
+
+		madgemc_setregpage(dev, 0);
+                chk2 ^= 0x0FE;
+		SIFWRITEB(chk2, SIFADR);
+
+                /* Read, invert and compare */
+		madgemc_setregpage(dev, 1);
+		chk2 = SIFREADB(SIFADD);
+		madgemc_setregpage(dev, 0);
+                chk2 ^= 0x0FE;
+
+                if(chk1 != chk2)
+                        return (-1);    /* No adapter */
+                chk1 -= 2;
+        } while(chk1 != 0);     /* Repeat 128 times (all byte values) */
+
+	madgemc_setregpage(dev, 0); /* sanity */
+        /* Restore the SIFADR value */
+	SIFWRITEB(old, SIFADR);
+
+        return (0);
+}
+#endif
+
+/*
+ * Open/initialize the board. This is called 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.
+ */
+int tms380tr_open(struct net_device *dev)
+{
+	struct net_local *tp = netdev_priv(dev);
+	int err;
+	
+	/* init the spinlock */
+	spin_lock_init(&tp->lock);
+	init_timer(&tp->timer);
+
+	/* Reset the hardware here. Don't forget to set the station address. */
+
+#ifdef CONFIG_ISA
+	if(dev->dma > 0) 
+	{
+		unsigned long flags=claim_dma_lock();
+		disable_dma(dev->dma);
+		set_dma_mode(dev->dma, DMA_MODE_CASCADE);
+		enable_dma(dev->dma);
+		release_dma_lock(flags);
+	}
+#endif
+	
+	err = tms380tr_chipset_init(dev);
+  	if(err)
+	{
+		printk(KERN_INFO "%s: Chipset initialization error\n", 
+			dev->name);
+		return (-1);
+	}
+
+	tp->timer.expires	= jiffies + 30*HZ;
+	tp->timer.function	= tms380tr_timer_end_wait;
+	tp->timer.data		= (unsigned long)dev;
+	add_timer(&tp->timer);
+
+	printk(KERN_DEBUG "%s: Adapter RAM size: %dK\n", 
+	       dev->name, tms380tr_read_ptr(dev));
+
+	tms380tr_enable_interrupts(dev);
+	tms380tr_open_adapter(dev);
+
+	netif_start_queue(dev);
+	
+	/* Wait for interrupt from hardware. If interrupt does not come,
+	 * there will be a timeout from the timer.
+	 */
+	tp->Sleeping = 1;
+	interruptible_sleep_on(&tp->wait_for_tok_int);
+	del_timer(&tp->timer);
+
+	/* If AdapterVirtOpenFlag is 1, the adapter is now open for use */
+	if(tp->AdapterVirtOpenFlag == 0)
+	{
+		tms380tr_disable_interrupts(dev);
+		return (-1);
+	}
+
+	tp->StartTime = jiffies;
+
+	/* Start function control timer */
+	tp->timer.expires	= jiffies + 2*HZ;
+	tp->timer.function	= tms380tr_timer_chk;
+	tp->timer.data		= (unsigned long)dev;
+	add_timer(&tp->timer);
+
+	return (0);
+}
+
+/*
+ * Timeout function while waiting for event
+ */
+static void tms380tr_timer_end_wait(unsigned long data)
+{
+	struct net_device *dev = (struct net_device*)data;
+	struct net_local *tp = netdev_priv(dev);
+
+	if(tp->Sleeping)
+	{
+		tp->Sleeping = 0;
+		wake_up_interruptible(&tp->wait_for_tok_int);
+	}
+
+	return;
+}
+
+/*
+ * Initialize the chipset
+ */
+static int tms380tr_chipset_init(struct net_device *dev)
+{
+	struct net_local *tp = netdev_priv(dev);
+	int err;
+
+	tms380tr_init_ipb(tp);
+	tms380tr_init_opb(dev);
+	tms380tr_init_net_local(dev);
+
+	if(tms380tr_debug > 3)
+		printk(KERN_DEBUG "%s: Resetting adapter...\n", dev->name);
+	err = tms380tr_reset_adapter(dev);
+	if(err < 0)
+		return (-1);
+
+	if(tms380tr_debug > 3)
+		printk(KERN_DEBUG "%s: Bringup diags...\n", dev->name);
+	err = tms380tr_bringup_diags(dev);
+	if(err < 0)
+		return (-1);
+
+	if(tms380tr_debug > 3)
+		printk(KERN_DEBUG "%s: Init adapter...\n", dev->name);
+	err = tms380tr_init_adapter(dev);
+	if(err < 0)
+		return (-1);
+
+	if(tms380tr_debug > 3)
+		printk(KERN_DEBUG "%s: Done!\n", dev->name);
+	return (0);
+}
+
+/*
+ * Initializes the net_local structure.
+ */
+static void tms380tr_init_net_local(struct net_device *dev)
+{
+	struct net_local *tp = netdev_priv(dev);
+	int i;
+	dma_addr_t dmabuf;
+
+	tp->scb.CMD	= 0;
+	tp->scb.Parm[0] = 0;
+	tp->scb.Parm[1] = 0;
+
+	tp->ssb.STS	= 0;
+	tp->ssb.Parm[0] = 0;
+	tp->ssb.Parm[1] = 0;
+	tp->ssb.Parm[2] = 0;
+
+	tp->CMDqueue	= 0;
+
+	tp->AdapterOpenFlag	= 0;
+	tp->AdapterVirtOpenFlag = 0;
+	tp->ScbInUse		= 0;
+	tp->OpenCommandIssued	= 0;
+	tp->ReOpenInProgress	= 0;
+	tp->HaltInProgress	= 0;
+	tp->TransmitHaltScheduled = 0;
+	tp->LobeWireFaultLogged	= 0;
+	tp->LastOpenStatus	= 0;
+	tp->MaxPacketSize	= DEFAULT_PACKET_SIZE;
+
+	/* Create circular chain of transmit lists */
+	for (i = 0; i < TPL_NUM; i++)
+	{
+		tp->Tpl[i].NextTPLAddr = htonl(((char *)(&tp->Tpl[(i+1) % TPL_NUM]) - (char *)tp) + tp->dmabuffer); /* DMA buffer may be MMU driven */
+		tp->Tpl[i].Status	= 0;
+		tp->Tpl[i].FrameSize	= 0;
+		tp->Tpl[i].FragList[0].DataCount	= 0;
+		tp->Tpl[i].FragList[0].DataAddr		= 0;
+		tp->Tpl[i].NextTPLPtr	= &tp->Tpl[(i+1) % TPL_NUM];
+		tp->Tpl[i].MData	= NULL;
+		tp->Tpl[i].TPLIndex	= i;
+		tp->Tpl[i].DMABuff	= 0;
+		tp->Tpl[i].BusyFlag	= 0;
+	}
+
+	tp->TplFree = tp->TplBusy = &tp->Tpl[0];
+
+	/* Create circular chain of receive lists */
+	for (i = 0; i < RPL_NUM; i++)
+	{
+		tp->Rpl[i].NextRPLAddr = htonl(((char *)(&tp->Rpl[(i+1) % RPL_NUM]) - (char *)tp) + tp->dmabuffer); /* DMA buffer may be MMU driven */
+		tp->Rpl[i].Status = (RX_VALID | RX_START_FRAME | RX_END_FRAME | RX_FRAME_IRQ);
+		tp->Rpl[i].FrameSize = 0;
+		tp->Rpl[i].FragList[0].DataCount = cpu_to_be16((unsigned short)tp->MaxPacketSize);
+
+		/* Alloc skb and point adapter to data area */
+		tp->Rpl[i].Skb = dev_alloc_skb(tp->MaxPacketSize);
+			tp->Rpl[i].DMABuff = 0;
+
+		/* skb == NULL ? then use local buffer */
+		if(tp->Rpl[i].Skb == NULL)
+		{
+			tp->Rpl[i].SkbStat = SKB_UNAVAILABLE;
+			tp->Rpl[i].FragList[0].DataAddr = htonl(((char *)tp->LocalRxBuffers[i] - (char *)tp) + tp->dmabuffer);
+			tp->Rpl[i].MData = tp->LocalRxBuffers[i];
+		}
+		else	/* SKB != NULL */
+		{
+			tp->Rpl[i].Skb->dev = dev;
+			skb_put(tp->Rpl[i].Skb, tp->MaxPacketSize);
+
+			/* data unreachable for DMA ? then use local buffer */
+			dmabuf = pci_map_single(tp->pdev, tp->Rpl[i].Skb->data, tp->MaxPacketSize, PCI_DMA_FROMDEVICE);
+			if(tp->dmalimit && (dmabuf + tp->MaxPacketSize > tp->dmalimit))
+			{
+				tp->Rpl[i].SkbStat = SKB_DATA_COPY;
+				tp->Rpl[i].FragList[0].DataAddr = htonl(((char *)tp->LocalRxBuffers[i] - (char *)tp) + tp->dmabuffer);
+				tp->Rpl[i].MData = tp->LocalRxBuffers[i];
+			}
+			else	/* DMA directly in skb->data */
+			{
+				tp->Rpl[i].SkbStat = SKB_DMA_DIRECT;
+				tp->Rpl[i].FragList[0].DataAddr = htonl(dmabuf);
+				tp->Rpl[i].MData = tp->Rpl[i].Skb->data;
+				tp->Rpl[i].DMABuff = dmabuf;
+			}
+		}
+
+		tp->Rpl[i].NextRPLPtr = &tp->Rpl[(i+1) % RPL_NUM];
+		tp->Rpl[i].RPLIndex = i;
+	}
+
+	tp->RplHead = &tp->Rpl[0];
+	tp->RplTail = &tp->Rpl[RPL_NUM-1];
+	tp->RplTail->Status = (RX_START_FRAME | RX_END_FRAME | RX_FRAME_IRQ);
+
+	return;
+}
+
+/*
+ * Initializes the initialisation parameter block.
+ */
+static void tms380tr_init_ipb(struct net_local *tp)
+{
+	tp->ipb.Init_Options	= BURST_MODE;
+	tp->ipb.CMD_Status_IV	= 0;
+	tp->ipb.TX_IV		= 0;
+	tp->ipb.RX_IV		= 0;
+	tp->ipb.Ring_Status_IV	= 0;
+	tp->ipb.SCB_Clear_IV	= 0;
+	tp->ipb.Adapter_CHK_IV	= 0;
+	tp->ipb.RX_Burst_Size	= BURST_SIZE;
+	tp->ipb.TX_Burst_Size	= BURST_SIZE;
+	tp->ipb.DMA_Abort_Thrhld = DMA_RETRIES;
+	tp->ipb.SCB_Addr	= 0;
+	tp->ipb.SSB_Addr	= 0;
+
+	return;
+}
+
+/*
+ * Initializes the open parameter block.
+ */
+static void tms380tr_init_opb(struct net_device *dev)
+{
+	struct net_local *tp;
+	unsigned long Addr;
+	unsigned short RplSize    = RPL_SIZE;
+	unsigned short TplSize    = TPL_SIZE;
+	unsigned short BufferSize = BUFFER_SIZE;
+	int i;
+
+	tp = netdev_priv(dev);
+
+	tp->ocpl.OPENOptions 	 = 0;
+	tp->ocpl.OPENOptions 	|= ENABLE_FULL_DUPLEX_SELECTION;
+	tp->ocpl.FullDuplex 	 = 0;
+	tp->ocpl.FullDuplex 	|= OPEN_FULL_DUPLEX_OFF;
+
+        /* 
+	 * Set node address 
+	 *
+	 * We go ahead and put it in the OPB even though on
+	 * most of the generic adapters this isn't required.
+	 * Its simpler this way.  -- ASF
+	 */
+        for (i=0;i<6;i++)
+                tp->ocpl.NodeAddr[i] = ((unsigned char *)dev->dev_addr)[i];
+
+	tp->ocpl.GroupAddr	 = 0;
+	tp->ocpl.FunctAddr	 = 0;
+	tp->ocpl.RxListSize	 = cpu_to_be16((unsigned short)RplSize);
+	tp->ocpl.TxListSize	 = cpu_to_be16((unsigned short)TplSize);
+	tp->ocpl.BufSize	 = cpu_to_be16((unsigned short)BufferSize);
+	tp->ocpl.Reserved	 = 0;
+	tp->ocpl.TXBufMin	 = TX_BUF_MIN;
+	tp->ocpl.TXBufMax	 = TX_BUF_MAX;
+
+	Addr = htonl(((char *)tp->ProductID - (char *)tp) + tp->dmabuffer);
+
+	tp->ocpl.ProdIDAddr[0]	 = LOWORD(Addr);
+	tp->ocpl.ProdIDAddr[1]	 = HIWORD(Addr);
+
+	return;
+}
+
+/*
+ * Send OPEN command to adapter
+ */
+static void tms380tr_open_adapter(struct net_device *dev)
+{
+	struct net_local *tp = netdev_priv(dev);
+
+	if(tp->OpenCommandIssued)
+		return;
+
+	tp->OpenCommandIssued = 1;
+	tms380tr_exec_cmd(dev, OC_OPEN);
+
+	return;
+}
+
+/*
+ * Clear the adapter's interrupt flag. Clear system interrupt enable
+ * (SINTEN): disable adapter to system interrupts.
+ */
+static void tms380tr_disable_interrupts(struct net_device *dev)
+{
+	SIFWRITEB(0, SIFACL);
+
+	return;
+}
+
+/*
+ * Set the adapter's interrupt flag. Set system interrupt enable
+ * (SINTEN): enable adapter to system interrupts.
+ */
+static void tms380tr_enable_interrupts(struct net_device *dev)
+{
+	SIFWRITEB(ACL_SINTEN, SIFACL);
+
+	return;
+}
+
+/*
+ * Put command in command queue, try to execute it.
+ */
+static void tms380tr_exec_cmd(struct net_device *dev, unsigned short Command)
+{
+	struct net_local *tp = netdev_priv(dev);
+
+	tp->CMDqueue |= Command;
+	tms380tr_chk_outstanding_cmds(dev);
+
+	return;
+}
+
+static void tms380tr_timeout(struct net_device *dev)
+{
+	/*
+	 * If we get here, some higher level has decided we are broken.
+	 * There should really be a "kick me" function call instead.
+	 *
+	 * Resetting the token ring adapter takes a long time so just
+	 * fake transmission time and go on trying. Our own timeout
+	 * routine is in tms380tr_timer_chk()
+	 */
+	dev->trans_start = jiffies;
+	netif_wake_queue(dev);
+}
+
+/*
+ * Gets skb from system, queues it and checks if it can be sent
+ */
+static int tms380tr_send_packet(struct sk_buff *skb, struct net_device *dev)
+{
+	struct net_local *tp = netdev_priv(dev);
+	int err;
+
+	err = tms380tr_hardware_send_packet(skb, dev);
+	if(tp->TplFree->NextTPLPtr->BusyFlag)
+		netif_stop_queue(dev);
+	return (err);
+}
+
+/*
+ * Move frames into adapter tx queue
+ */
+static int tms380tr_hardware_send_packet(struct sk_buff *skb, struct net_device *dev)
+{
+	TPL *tpl;
+	short length;
+	unsigned char *buf;
+	unsigned long flags;
+	int i;
+	dma_addr_t dmabuf, newbuf;
+	struct net_local *tp = netdev_priv(dev);
+   
+	/* Try to get a free TPL from the chain.
+	 *
+	 * NOTE: We *must* always leave one unused TPL in the chain,
+	 * because otherwise the adapter might send frames twice.
+	 */
+	spin_lock_irqsave(&tp->lock, flags);
+	if(tp->TplFree->NextTPLPtr->BusyFlag)  { /* No free TPL */
+		if (tms380tr_debug > 0)
+			printk(KERN_DEBUG "%s: No free TPL\n", dev->name);
+		spin_unlock_irqrestore(&tp->lock, flags);
+		return 1;
+	}
+
+	dmabuf = 0;
+
+	/* Is buffer reachable for Busmaster-DMA? */
+
+	length	= skb->len;
+	dmabuf = pci_map_single(tp->pdev, skb->data, length, PCI_DMA_TODEVICE);
+	if(tp->dmalimit && (dmabuf + length > tp->dmalimit)) {
+		/* Copy frame to local buffer */
+		pci_unmap_single(tp->pdev, dmabuf, length, PCI_DMA_TODEVICE);
+		dmabuf  = 0;
+		i 	= tp->TplFree->TPLIndex;
+		buf 	= tp->LocalTxBuffers[i];
+		memcpy(buf, skb->data, length);
+		newbuf 	= ((char *)buf - (char *)tp) + tp->dmabuffer;
+	}
+	else {
+		/* Send direct from skb->data */
+		newbuf	= dmabuf;
+		buf	= skb->data;
+	}
+	/* Source address in packet? */
+	tms380tr_chk_src_addr(buf, dev->dev_addr);
+	tp->LastSendTime	= jiffies;
+	tpl 			= tp->TplFree;	/* Get the "free" TPL */
+	tpl->BusyFlag 		= 1;		/* Mark TPL as busy */
+	tp->TplFree 		= tpl->NextTPLPtr;
+    
+	/* Save the skb for delayed return of skb to system */
+	tpl->Skb = skb;
+	tpl->DMABuff = dmabuf;
+	tpl->FragList[0].DataCount = cpu_to_be16((unsigned short)length);
+	tpl->FragList[0].DataAddr  = htonl(newbuf);
+
+	/* Write the data length in the transmit list. */
+	tpl->FrameSize 	= cpu_to_be16((unsigned short)length);
+	tpl->MData 	= buf;
+
+	/* Transmit the frame and set the status values. */
+	tms380tr_write_tpl_status(tpl, TX_VALID | TX_START_FRAME
+				| TX_END_FRAME | TX_PASS_SRC_ADDR
+				| TX_FRAME_IRQ);
+
+	/* Let adapter send the frame. */
+	tms380tr_exec_sifcmd(dev, CMD_TX_VALID);
+	spin_unlock_irqrestore(&tp->lock, flags);
+
+	return 0;
+}
+
+/*
+ * Write the given value to the 'Status' field of the specified TPL.
+ * NOTE: This function should be used whenever the status of any TPL must be
+ * modified by the driver, because the compiler may otherwise change the
+ * order of instructions such that writing the TPL status may be executed at
+ * an undesireable time. When this function is used, the status is always
+ * written when the function is called.
+ */
+static void tms380tr_write_tpl_status(TPL *tpl, unsigned int Status)
+{
+	tpl->Status = Status;
+}
+
+static void tms380tr_chk_src_addr(unsigned char *frame, unsigned char *hw_addr)
+{
+	unsigned char SRBit;
+
+	if((((unsigned long)frame[8]) & ~0x80) != 0)	/* Compare 4 bytes */
+		return;
+	if((unsigned short)frame[12] != 0)		/* Compare 2 bytes */
+		return;
+
+	SRBit = frame[8] & 0x80;
+	memcpy(&frame[8], hw_addr, 6);
+	frame[8] |= SRBit;
+
+	return;
+}
+
+/*
+ * The timer routine: Check if adapter still open and working, reopen if not. 
+ */
+static void tms380tr_timer_chk(unsigned long data)
+{
+	struct net_device *dev = (struct net_device*)data;
+	struct net_local *tp = netdev_priv(dev);
+
+	if(tp->HaltInProgress)
+		return;
+
+	tms380tr_chk_outstanding_cmds(dev);
+	if(time_before(tp->LastSendTime + SEND_TIMEOUT, jiffies)
+		&& (tp->TplFree != tp->TplBusy))
+	{
+		/* Anything to send, but stalled too long */
+		tp->LastSendTime = jiffies;
+		tms380tr_exec_cmd(dev, OC_CLOSE);	/* Does reopen automatically */
+	}
+
+	tp->timer.expires = jiffies + 2*HZ;
+	add_timer(&tp->timer);
+
+	if(tp->AdapterOpenFlag || tp->ReOpenInProgress)
+		return;
+	tp->ReOpenInProgress = 1;
+	tms380tr_open_adapter(dev);
+
+	return;
+}
+
+/*
+ * The typical workload of the driver: Handle the network interface interrupts.
+ */
+irqreturn_t tms380tr_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+{
+	struct net_device *dev = dev_id;
+	struct net_local *tp;
+	unsigned short irq_type;
+	int handled = 0;
+
+	if(dev == NULL) {
+		printk(KERN_INFO "%s: irq %d for unknown device.\n", dev->name, irq);
+		return IRQ_NONE;
+	}
+
+	tp = netdev_priv(dev);
+
+	irq_type = SIFREADW(SIFSTS);
+
+	while(irq_type & STS_SYSTEM_IRQ) {
+		handled = 1;
+		irq_type &= STS_IRQ_MASK;
+
+		if(!tms380tr_chk_ssb(tp, irq_type)) {
+			printk(KERN_DEBUG "%s: DATA LATE occurred\n", dev->name);
+			break;
+		}
+
+		switch(irq_type) {
+		case STS_IRQ_RECEIVE_STATUS:
+			tms380tr_reset_interrupt(dev);
+			tms380tr_rcv_status_irq(dev);
+			break;
+
+		case STS_IRQ_TRANSMIT_STATUS:
+			/* Check if TRANSMIT.HALT command is complete */
+			if(tp->ssb.Parm[0] & COMMAND_COMPLETE) {
+				tp->TransmitCommandActive = 0;
+					tp->TransmitHaltScheduled = 0;
+
+					/* Issue a new transmit command. */
+					tms380tr_exec_cmd(dev, OC_TRANSMIT);
+				}
+
+				tms380tr_reset_interrupt(dev);
+				tms380tr_tx_status_irq(dev);
+				break;
+
+		case STS_IRQ_COMMAND_STATUS:
+			/* The SSB contains status of last command
+			 * other than receive/transmit.
+			 */
+			tms380tr_cmd_status_irq(dev);
+			break;
+			
+		case STS_IRQ_SCB_CLEAR:
+			/* The SCB is free for another command. */
+			tp->ScbInUse = 0;
+			tms380tr_chk_outstanding_cmds(dev);
+			break;
+			
+		case STS_IRQ_RING_STATUS:
+			tms380tr_ring_status_irq(dev);
+			break;
+
+		case STS_IRQ_ADAPTER_CHECK:
+			tms380tr_chk_irq(dev);
+			break;
+
+		case STS_IRQ_LLC_STATUS:
+			printk(KERN_DEBUG "tms380tr: unexpected LLC status IRQ\n");
+			break;
+			
+		case STS_IRQ_TIMER:
+			printk(KERN_DEBUG "tms380tr: unexpected Timer IRQ\n");
+			break;
+			
+		case STS_IRQ_RECEIVE_PENDING:
+			printk(KERN_DEBUG "tms380tr: unexpected Receive Pending IRQ\n");
+			break;
+			
+		default:
+			printk(KERN_DEBUG "Unknown Token Ring IRQ (0x%04x)\n", irq_type);
+			break;
+		}
+
+		/* Reset system interrupt if not already done. */
+		if(irq_type != STS_IRQ_TRANSMIT_STATUS
+			&& irq_type != STS_IRQ_RECEIVE_STATUS) {
+			tms380tr_reset_interrupt(dev);
+		}
+
+		irq_type = SIFREADW(SIFSTS);
+	}
+
+	return IRQ_RETVAL(handled);
+}
+
+/*
+ *  Reset the INTERRUPT SYSTEM bit and issue SSB CLEAR command.
+ */
+static void tms380tr_reset_interrupt(struct net_device *dev)
+{
+	struct net_local *tp = netdev_priv(dev);
+	SSB *ssb = &tp->ssb;
+
+	/*
+	 * [Workaround for "Data Late"]
+	 * Set all fields of the SSB to well-defined values so we can
+	 * check if the adapter has written the SSB.
+	 */
+
+	ssb->STS	= (unsigned short) -1;
+	ssb->Parm[0] 	= (unsigned short) -1;
+	ssb->Parm[1] 	= (unsigned short) -1;
+	ssb->Parm[2] 	= (unsigned short) -1;
+
+	/* Free SSB by issuing SSB_CLEAR command after reading IRQ code
+	 * and clear STS_SYSTEM_IRQ bit: enable adapter for further interrupts.
+	 */
+	tms380tr_exec_sifcmd(dev, CMD_SSB_CLEAR | CMD_CLEAR_SYSTEM_IRQ);
+
+	return;
+}
+
+/*
+ * Check if the SSB has actually been written by the adapter.
+ */
+static unsigned char tms380tr_chk_ssb(struct net_local *tp, unsigned short IrqType)
+{
+	SSB *ssb = &tp->ssb;	/* The address of the SSB. */
+
+	/* C 0 1 2 INTERRUPT CODE
+	 * - - - - --------------
+	 * 1 1 1 1 TRANSMIT STATUS
+	 * 1 1 1 1 RECEIVE STATUS
+	 * 1 ? ? 0 COMMAND STATUS
+	 * 0 0 0 0 SCB CLEAR
+	 * 1 1 0 0 RING STATUS
+	 * 0 0 0 0 ADAPTER CHECK
+	 *
+	 * 0 = SSB field not affected by interrupt
+	 * 1 = SSB field is affected by interrupt
+	 *
+	 * C = SSB ADDRESS +0: COMMAND
+	 * 0 = SSB ADDRESS +2: STATUS 0
+	 * 1 = SSB ADDRESS +4: STATUS 1
+	 * 2 = SSB ADDRESS +6: STATUS 2
+	 */
+
+	/* Check if this interrupt does use the SSB. */
+
+	if(IrqType != STS_IRQ_TRANSMIT_STATUS
+		&& IrqType != STS_IRQ_RECEIVE_STATUS
+		&& IrqType != STS_IRQ_COMMAND_STATUS
+		&& IrqType != STS_IRQ_RING_STATUS)
+	{
+		return (1);	/* SSB not involved. */
+	}
+
+	/* Note: All fields of the SSB have been set to all ones (-1) after it
+	 * has last been used by the software (see DriverIsr()).
+	 *
+	 * Check if the affected SSB fields are still unchanged.
+	 */
+
+	if(ssb->STS == (unsigned short) -1)
+		return (0);	/* Command field not yet available. */
+	if(IrqType == STS_IRQ_COMMAND_STATUS)
+		return (1);	/* Status fields not always affected. */
+	if(ssb->Parm[0] == (unsigned short) -1)
+		return (0);	/* Status 1 field not yet available. */
+	if(IrqType == STS_IRQ_RING_STATUS)
+		return (1);	/* Status 2 & 3 fields not affected. */
+
+	/* Note: At this point, the interrupt is either TRANSMIT or RECEIVE. */
+	if(ssb->Parm[1] == (unsigned short) -1)
+		return (0);	/* Status 2 field not yet available. */
+	if(ssb->Parm[2] == (unsigned short) -1)
+		return (0);	/* Status 3 field not yet available. */
+
+	return (1);	/* All SSB fields have been written by the adapter. */
+}
+
+/*
+ * Evaluates the command results status in the SSB status field.
+ */
+static void tms380tr_cmd_status_irq(struct net_device *dev)
+{
+	struct net_local *tp = netdev_priv(dev);
+	unsigned short ssb_cmd, ssb_parm_0;
+	unsigned short ssb_parm_1;
+	char *open_err = "Open error -";
+	char *code_err = "Open code -";
+
+	/* Copy the ssb values to local variables */
+	ssb_cmd    = tp->ssb.STS;
+	ssb_parm_0 = tp->ssb.Parm[0];
+	ssb_parm_1 = tp->ssb.Parm[1];
+
+	if(ssb_cmd == OPEN)
+	{
+		tp->Sleeping = 0;
+		if(!tp->ReOpenInProgress)
+	    		wake_up_interruptible(&tp->wait_for_tok_int);
+
+		tp->OpenCommandIssued = 0;
+		tp->ScbInUse = 0;
+
+		if((ssb_parm_0 & 0x00FF) == GOOD_COMPLETION)
+		{
+			/* Success, the adapter is open. */
+			tp->LobeWireFaultLogged	= 0;
+			tp->AdapterOpenFlag 	= 1;
+			tp->AdapterVirtOpenFlag = 1;
+			tp->TransmitCommandActive = 0;
+			tms380tr_exec_cmd(dev, OC_TRANSMIT);
+			tms380tr_exec_cmd(dev, OC_RECEIVE);
+
+			if(tp->ReOpenInProgress)
+				tp->ReOpenInProgress = 0;
+
+			return;
+		}
+		else 	/* The adapter did not open. */
+		{
+	    		if(ssb_parm_0 & NODE_ADDR_ERROR)
+				printk(KERN_INFO "%s: Node address error\n",
+					dev->name);
+	    		if(ssb_parm_0 & LIST_SIZE_ERROR)
+				printk(KERN_INFO "%s: List size error\n",
+					dev->name);
+	    		if(ssb_parm_0 & BUF_SIZE_ERROR)
+				printk(KERN_INFO "%s: Buffer size error\n",
+					dev->name);
+	    		if(ssb_parm_0 & TX_BUF_COUNT_ERROR)
+				printk(KERN_INFO "%s: Tx buffer count error\n",
+					dev->name);
+	    		if(ssb_parm_0 & INVALID_OPEN_OPTION)
+				printk(KERN_INFO "%s: Invalid open option\n",
+					dev->name);
+	    		if(ssb_parm_0 & OPEN_ERROR)
+			{
+				/* Show the open phase. */
+				switch(ssb_parm_0 & OPEN_PHASES_MASK)
+				{
+					case LOBE_MEDIA_TEST:
+						if(!tp->LobeWireFaultLogged)
+						{
+							tp->LobeWireFaultLogged = 1;
+							printk(KERN_INFO "%s: %s Lobe wire fault (check cable !).\n", dev->name, open_err);
+		    				}
+						tp->ReOpenInProgress	= 1;
+						tp->AdapterOpenFlag 	= 0;
+						tp->AdapterVirtOpenFlag = 1;
+						tms380tr_open_adapter(dev);
+						return;
+
+					case PHYSICAL_INSERTION:
+						printk(KERN_INFO "%s: %s Physical insertion.\n", dev->name, open_err);
+						break;
+
+					case ADDRESS_VERIFICATION:
+						printk(KERN_INFO "%s: %s Address verification.\n", dev->name, open_err);
+						break;
+
+					case PARTICIPATION_IN_RING_POLL:
+						printk(KERN_INFO "%s: %s Participation in ring poll.\n", dev->name, open_err);
+						break;
+
+					case REQUEST_INITIALISATION:
+						printk(KERN_INFO "%s: %s Request initialisation.\n", dev->name, open_err);
+						break;
+
+					case FULLDUPLEX_CHECK:
+						printk(KERN_INFO "%s: %s Full duplex check.\n", dev->name, open_err);
+						break;
+
+					default:
+						printk(KERN_INFO "%s: %s Unknown open phase\n", dev->name, open_err);
+						break;
+				}
+
+				/* Show the open errors. */
+				switch(ssb_parm_0 & OPEN_ERROR_CODES_MASK)
+				{
+					case OPEN_FUNCTION_FAILURE:
+						printk(KERN_INFO "%s: %s OPEN_FUNCTION_FAILURE", dev->name, code_err);
+						tp->LastOpenStatus =
+							OPEN_FUNCTION_FAILURE;
+						break;
+
+					case OPEN_SIGNAL_LOSS:
+						printk(KERN_INFO "%s: %s OPEN_SIGNAL_LOSS\n", dev->name, code_err);
+						tp->LastOpenStatus =
+							OPEN_SIGNAL_LOSS;
+						break;
+
+					case OPEN_TIMEOUT:
+						printk(KERN_INFO "%s: %s OPEN_TIMEOUT\n", dev->name, code_err);
+						tp->LastOpenStatus =
+							OPEN_TIMEOUT;
+						break;
+
+					case OPEN_RING_FAILURE:
+						printk(KERN_INFO "%s: %s OPEN_RING_FAILURE\n", dev->name, code_err);
+						tp->LastOpenStatus =
+							OPEN_RING_FAILURE;
+						break;
+
+					case OPEN_RING_BEACONING:
+						printk(KERN_INFO "%s: %s OPEN_RING_BEACONING\n", dev->name, code_err);
+						tp->LastOpenStatus =
+							OPEN_RING_BEACONING;
+						break;
+
+					case OPEN_DUPLICATE_NODEADDR:
+						printk(KERN_INFO "%s: %s OPEN_DUPLICATE_NODEADDR\n", dev->name, code_err);
+						tp->LastOpenStatus =
+							OPEN_DUPLICATE_NODEADDR;
+						break;
+
+					case OPEN_REQUEST_INIT:
+						printk(KERN_INFO "%s: %s OPEN_REQUEST_INIT\n", dev->name, code_err);
+						tp->LastOpenStatus =
+							OPEN_REQUEST_INIT;
+						break;
+
+					case OPEN_REMOVE_RECEIVED:
+						printk(KERN_INFO "%s: %s OPEN_REMOVE_RECEIVED", dev->name, code_err);
+						tp->LastOpenStatus =
+							OPEN_REMOVE_RECEIVED;
+						break;
+
+					case OPEN_FULLDUPLEX_SET:
+						printk(KERN_INFO "%s: %s OPEN_FULLDUPLEX_SET\n", dev->name, code_err);
+						tp->LastOpenStatus =
+							OPEN_FULLDUPLEX_SET;
+						break;
+
+					default:
+						printk(KERN_INFO "%s: %s Unknown open err code", dev->name, code_err);
+						tp->LastOpenStatus =
+							OPEN_FUNCTION_FAILURE;
+						break;
+				}
+			}
+
+			tp->AdapterOpenFlag 	= 0;
+			tp->AdapterVirtOpenFlag = 0;
+
+			return;
+		}
+	}
+	else
+	{
+		if(ssb_cmd != READ_ERROR_LOG)
+			return;
+
+		/* Add values from the error log table to the MAC
+		 * statistics counters and update the errorlogtable
+		 * memory.
+		 */
+		tp->MacStat.line_errors += tp->errorlogtable.Line_Error;
+		tp->MacStat.burst_errors += tp->errorlogtable.Burst_Error;
+		tp->MacStat.A_C_errors += tp->errorlogtable.ARI_FCI_Error;
+		tp->MacStat.lost_frames += tp->errorlogtable.Lost_Frame_Error;
+		tp->MacStat.recv_congest_count += tp->errorlogtable.Rx_Congest_Error;
+		tp->MacStat.rx_errors += tp->errorlogtable.Rx_Congest_Error;
+		tp->MacStat.frame_copied_errors += tp->errorlogtable.Frame_Copied_Error;
+		tp->MacStat.token_errors += tp->errorlogtable.Token_Error;
+		tp->MacStat.dummy1 += tp->errorlogtable.DMA_Bus_Error;
+		tp->MacStat.dummy1 += tp->errorlogtable.DMA_Parity_Error;
+		tp->MacStat.abort_delimiters += tp->errorlogtable.AbortDelimeters;
+		tp->MacStat.frequency_errors += tp->errorlogtable.Frequency_Error;
+		tp->MacStat.internal_errors += tp->errorlogtable.Internal_Error;
+	}
+
+	return;
+}
+
+/*
+ * The inverse routine to tms380tr_open().
+ */
+int tms380tr_close(struct net_device *dev)
+{
+	struct net_local *tp = netdev_priv(dev);
+	netif_stop_queue(dev);
+	
+	del_timer(&tp->timer);
+
+	/* Flush the Tx and disable Rx here. */
+
+	tp->HaltInProgress 	= 1;
+	tms380tr_exec_cmd(dev, OC_CLOSE);
+	tp->timer.expires	= jiffies + 1*HZ;
+	tp->timer.function 	= tms380tr_timer_end_wait;
+	tp->timer.data 		= (unsigned long)dev;
+	add_timer(&tp->timer);
+
+	tms380tr_enable_interrupts(dev);
+
+	tp->Sleeping = 1;
+	interruptible_sleep_on(&tp->wait_for_tok_int);
+	tp->TransmitCommandActive = 0;
+    
+	del_timer(&tp->timer);
+	tms380tr_disable_interrupts(dev);
+   
+#ifdef CONFIG_ISA
+	if(dev->dma > 0) 
+	{
+		unsigned long flags=claim_dma_lock();
+		disable_dma(dev->dma);
+		release_dma_lock(flags);
+	}
+#endif
+	
+	SIFWRITEW(0xFF00, SIFCMD);
+#if 0
+	if(dev->dma > 0) /* what the? */
+		SIFWRITEB(0xff, POSREG);
+#endif
+	tms380tr_cancel_tx_queue(tp);
+
+	return (0);
+}
+
+/*
+ * Get the current statistics. This may be called with the card open
+ * or closed.
+ */
+static struct net_device_stats *tms380tr_get_stats(struct net_device *dev)
+{
+	struct net_local *tp = netdev_priv(dev);
+
+	return ((struct net_device_stats *)&tp->MacStat);
+}
+
+/*
+ * Set or clear the multicast filter for this adapter.
+ */
+static void tms380tr_set_multicast_list(struct net_device *dev)
+{
+	struct net_local *tp = netdev_priv(dev);
+	unsigned int OpenOptions;
+	
+	OpenOptions = tp->ocpl.OPENOptions &
+		~(PASS_ADAPTER_MAC_FRAMES
+		  | PASS_ATTENTION_FRAMES
+		  | PASS_BEACON_MAC_FRAMES
+		  | COPY_ALL_MAC_FRAMES
+		  | COPY_ALL_NON_MAC_FRAMES);
+	
+	tp->ocpl.FunctAddr = 0;
+	
+	if(dev->flags & IFF_PROMISC)
+		/* Enable promiscuous mode */
+		OpenOptions |= COPY_ALL_NON_MAC_FRAMES |
+			COPY_ALL_MAC_FRAMES;
+	else
+	{
+		if(dev->flags & IFF_ALLMULTI)
+		{
+			/* Disable promiscuous mode, use normal mode. */
+			tp->ocpl.FunctAddr = 0xFFFFFFFF;
+		}
+		else
+		{
+			int i;
+			struct dev_mc_list *mclist = dev->mc_list;
+			for (i=0; i< dev->mc_count; i++)
+			{
+				((char *)(&tp->ocpl.FunctAddr))[0] |=
+					mclist->dmi_addr[2];
+				((char *)(&tp->ocpl.FunctAddr))[1] |=
+					mclist->dmi_addr[3];
+				((char *)(&tp->ocpl.FunctAddr))[2] |=
+					mclist->dmi_addr[4];
+				((char *)(&tp->ocpl.FunctAddr))[3] |=
+					mclist->dmi_addr[5];
+				mclist = mclist->next;
+			}
+		}
+		tms380tr_exec_cmd(dev, OC_SET_FUNCT_ADDR);
+	}
+	
+	tp->ocpl.OPENOptions = OpenOptions;
+	tms380tr_exec_cmd(dev, OC_MODIFY_OPEN_PARMS);
+	return;
+}
+
+/*
+ * Wait for some time (microseconds)
+ */
+void tms380tr_wait(unsigned long time)
+{
+#if 0
+	long tmp;
+	
+	tmp = jiffies + time/(1000000/HZ);
+	do {
+  		current->state 		= TASK_INTERRUPTIBLE;
+		tmp = schedule_timeout(tmp);
+	} while(time_after(tmp, jiffies));
+#else
+	udelay(time);
+#endif
+	return;
+}
+
+/*
+ * Write a command value to the SIFCMD register
+ */
+static void tms380tr_exec_sifcmd(struct net_device *dev, unsigned int WriteValue)
+{
+	unsigned short cmd;
+	unsigned short SifStsValue;
+	unsigned long loop_counter;
+
+	WriteValue = ((WriteValue ^ CMD_SYSTEM_IRQ) | CMD_INTERRUPT_ADAPTER);
+	cmd = (unsigned short)WriteValue;
+	loop_counter = 0,5 * 800000;
+	do {
+		SifStsValue = SIFREADW(SIFSTS);
+	} while((SifStsValue & CMD_INTERRUPT_ADAPTER) && loop_counter--);
+	SIFWRITEW(cmd, SIFCMD);
+
+	return;
+}
+
+/*
+ * Processes adapter hardware reset, halts adapter and downloads firmware,
+ * clears the halt bit.
+ */
+static int tms380tr_reset_adapter(struct net_device *dev)
+{
+	struct net_local *tp = netdev_priv(dev);
+	unsigned short *fw_ptr;
+	unsigned short count, c, count2;
+	const struct firmware *fw_entry = NULL;
+
+	strncpy(tms_device.bus_id,dev->name, BUS_ID_SIZE);
+
+	if (request_firmware(&fw_entry, "tms380tr.bin", &tms_device) != 0) {
+		printk(KERN_ALERT "%s: firmware %s is missing, cannot start.\n",
+			dev->name, "tms380tr.bin");
+		return (-1);
+	}
+
+	fw_ptr = (unsigned short *)fw_entry->data;
+	count2 = fw_entry->size / 2;
+
+	/* Hardware adapter reset */
+	SIFWRITEW(ACL_ARESET, SIFACL);
+	tms380tr_wait(40);
+	
+	c = SIFREADW(SIFACL);
+	tms380tr_wait(20);
+
+	if(dev->dma == 0)	/* For PCI adapters */
+	{
+		c &= ~(ACL_NSELOUT0 | ACL_NSELOUT1);	/* Clear bits */
+		if(tp->setnselout)
+		  c |= (*tp->setnselout)(dev);
+	}
+
+	/* In case a command is pending - forget it */
+	tp->ScbInUse = 0;
+
+	c &= ~ACL_ARESET;		/* Clear adapter reset bit */
+	c |=  ACL_CPHALT;		/* Halt adapter CPU, allow download */
+	c |= ACL_BOOT;
+	c |= ACL_SINTEN;
+	c &= ~ACL_PSDMAEN;		/* Clear pseudo dma bit */
+	SIFWRITEW(c, SIFACL);
+	tms380tr_wait(40);
+
+	count = 0;
+	/* Download firmware via DIO interface: */
+	do {
+		if (count2 < 3) continue;
+
+		/* Download first address part */
+		SIFWRITEW(*fw_ptr, SIFADX);
+		fw_ptr++;
+		count2--;
+		/* Download second address part */
+		SIFWRITEW(*fw_ptr, SIFADD);
+		fw_ptr++;
+		count2--;
+
+		if((count = *fw_ptr) != 0)	/* Load loop counter */
+		{
+			fw_ptr++;	/* Download block data */
+			count2--;
+			if (count > count2) continue;
+
+			for(; count > 0; count--)
+			{
+				SIFWRITEW(*fw_ptr, SIFINC);
+				fw_ptr++;
+				count2--;
+			}
+		}
+		else	/* Stop, if last block downloaded */
+		{
+			c = SIFREADW(SIFACL);
+			c &= (~ACL_CPHALT | ACL_SINTEN);
+
+			/* Clear CPHALT and start BUD */
+			SIFWRITEW(c, SIFACL);
+			if (fw_entry)
+				release_firmware(fw_entry);
+			return (1);
+		}
+	} while(count == 0);
+
+	if (fw_entry)
+		release_firmware(fw_entry);
+	printk(KERN_INFO "%s: Adapter Download Failed\n", dev->name);
+	return (-1);
+}
+
+/*
+ * Starts bring up diagnostics of token ring adapter and evaluates
+ * diagnostic results.
+ */
+static int tms380tr_bringup_diags(struct net_device *dev)
+{
+	int loop_cnt, retry_cnt;
+	unsigned short Status;
+
+	tms380tr_wait(HALF_SECOND);
+	tms380tr_exec_sifcmd(dev, EXEC_SOFT_RESET);
+	tms380tr_wait(HALF_SECOND);
+
+	retry_cnt = BUD_MAX_RETRIES;	/* maximal number of retrys */
+
+	do {
+		retry_cnt--;
+		if(tms380tr_debug > 3)
+			printk(KERN_DEBUG "BUD-Status: ");
+		loop_cnt = BUD_MAX_LOOPCNT;	/* maximum: three seconds*/
+		do {			/* Inspect BUD results */
+			loop_cnt--;
+			tms380tr_wait(HALF_SECOND);
+			Status = SIFREADW(SIFSTS);
+			Status &= STS_MASK;
+
+			if(tms380tr_debug > 3)
+				printk(KERN_DEBUG " %04X \n", Status);
+			/* BUD successfully completed */
+			if(Status == STS_INITIALIZE)
+				return (1);
+		/* Unrecoverable hardware error, BUD not completed? */
+		} while((loop_cnt > 0) && ((Status & (STS_ERROR | STS_TEST))
+			!= (STS_ERROR | STS_TEST)));
+
+		/* Error preventing completion of BUD */
+		if(retry_cnt > 0)
+		{
+			printk(KERN_INFO "%s: Adapter Software Reset.\n", 
+				dev->name);
+			tms380tr_exec_sifcmd(dev, EXEC_SOFT_RESET);
+			tms380tr_wait(HALF_SECOND);
+		}
+	} while(retry_cnt > 0);
+
+	Status = SIFREADW(SIFSTS);
+	
+	printk(KERN_INFO "%s: Hardware error\n", dev->name);
+	/* Hardware error occurred! */
+	Status &= 0x001f;
+	if (Status & 0x0010)
+		printk(KERN_INFO "%s: BUD Error: Timeout\n", dev->name);
+	else if ((Status & 0x000f) > 6)
+		printk(KERN_INFO "%s: BUD Error: Illegal Failure\n", dev->name);
+	else
+		printk(KERN_INFO "%s: Bring Up Diagnostics Error (%04X) occurred\n", dev->name, Status & 0x000f);
+
+	return (-1);
+}
+
+/*
+ * Copy initialisation data to adapter memory, beginning at address
+ * 1:0A00; Starting DMA test and evaluating result bits.
+ */
+static int tms380tr_init_adapter(struct net_device *dev)
+{
+	struct net_local *tp = netdev_priv(dev);
+
+	const unsigned char SCB_Test[6] = {0x00, 0x00, 0xC1, 0xE2, 0xD4, 0x8B};
+	const unsigned char SSB_Test[8] = {0xFF, 0xFF, 0xD1, 0xD7,
+						0xC5, 0xD9, 0xC3, 0xD4};
+	void *ptr = (void *)&tp->ipb;
+	unsigned short *ipb_ptr = (unsigned short *)ptr;
+	unsigned char *cb_ptr = (unsigned char *) &tp->scb;
+	unsigned char *sb_ptr = (unsigned char *) &tp->ssb;
+	unsigned short Status;
+	int i, loop_cnt, retry_cnt;
+
+	/* Normalize: byte order low/high, word order high/low! (only IPB!) */
+	tp->ipb.SCB_Addr = SWAPW(((char *)&tp->scb - (char *)tp) + tp->dmabuffer);
+	tp->ipb.SSB_Addr = SWAPW(((char *)&tp->ssb - (char *)tp) + tp->dmabuffer);
+
+	if(tms380tr_debug > 3)
+	{
+		printk(KERN_DEBUG "%s: buffer (real): %lx\n", dev->name, (long) &tp->scb);
+		printk(KERN_DEBUG "%s: buffer (virt): %lx\n", dev->name, (long) ((char *)&tp->scb - (char *)tp) + (long) tp->dmabuffer);
+		printk(KERN_DEBUG "%s: buffer (DMA) : %lx\n", dev->name, (long) tp->dmabuffer);
+		printk(KERN_DEBUG "%s: buffer (tp)  : %lx\n", dev->name, (long) tp);
+	}
+	/* Maximum: three initialization retries */
+	retry_cnt = INIT_MAX_RETRIES;
+
+	do {
+		retry_cnt--;
+
+		/* Transfer initialization block */
+		SIFWRITEW(0x0001, SIFADX);
+
+		/* To address 0001:0A00 of adapter RAM */
+		SIFWRITEW(0x0A00, SIFADD);
+
+		/* Write 11 words to adapter RAM */
+		for(i = 0; i < 11; i++)
+			SIFWRITEW(ipb_ptr[i], SIFINC);
+
+		/* Execute SCB adapter command */
+		tms380tr_exec_sifcmd(dev, CMD_EXECUTE);
+
+		loop_cnt = INIT_MAX_LOOPCNT;	/* Maximum: 11 seconds */
+
+		/* While remaining retries, no error and not completed */
+		do {
+			Status = 0;
+			loop_cnt--;
+			tms380tr_wait(HALF_SECOND);
+
+			/* Mask interesting status bits */
+			Status = SIFREADW(SIFSTS);
+			Status &= STS_MASK;
+		} while(((Status &(STS_INITIALIZE | STS_ERROR | STS_TEST)) != 0)
+			&& ((Status & STS_ERROR) == 0) && (loop_cnt != 0));
+
+		if((Status & (STS_INITIALIZE | STS_ERROR | STS_TEST)) == 0)
+		{
+			/* Initialization completed without error */
+			i = 0;
+			do {	/* Test if contents of SCB is valid */
+				if(SCB_Test[i] != *(cb_ptr + i))
+				{
+					printk(KERN_INFO "%s: DMA failed\n", dev->name);
+					/* DMA data error: wrong data in SCB */
+					return (-1);
+				}
+				i++;
+			} while(i < 6);
+
+			i = 0;
+			do {	/* Test if contents of SSB is valid */
+				if(SSB_Test[i] != *(sb_ptr + i))
+					/* DMA data error: wrong data in SSB */
+					return (-1);
+				i++;
+			} while (i < 8);
+
+			return (1);	/* Adapter successfully initialized */
+		}
+		else
+		{
+			if((Status & STS_ERROR) != 0)
+			{
+				/* Initialization error occurred */
+				Status = SIFREADW(SIFSTS);
+				Status &= STS_ERROR_MASK;
+				/* ShowInitialisationErrorCode(Status); */
+				printk(KERN_INFO "%s: Status error: %d\n", dev->name, Status);
+				return (-1); /* Unrecoverable error */
+			}
+			else
+			{
+				if(retry_cnt > 0)
+				{
+					/* Reset adapter and try init again */
+					tms380tr_exec_sifcmd(dev, EXEC_SOFT_RESET);
+					tms380tr_wait(HALF_SECOND);
+				}
+			}
+		}
+	} while(retry_cnt > 0);
+
+	printk(KERN_INFO "%s: Retry exceeded\n", dev->name);
+	return (-1);
+}
+
+/*
+ * Check for outstanding commands in command queue and tries to execute
+ * command immediately. Corresponding command flag in command queue is cleared.
+ */
+static void tms380tr_chk_outstanding_cmds(struct net_device *dev)
+{
+	struct net_local *tp = netdev_priv(dev);
+	unsigned long Addr = 0;
+
+	if(tp->CMDqueue == 0)
+		return;		/* No command execution */
+
+	/* If SCB in use: no command */
+	if(tp->ScbInUse == 1)
+		return;
+
+	/* Check if adapter is opened, avoiding COMMAND_REJECT
+	 * interrupt by the adapter!
+	 */
+	if(tp->AdapterOpenFlag == 0)
+	{
+		if(tp->CMDqueue & OC_OPEN)
+		{
+			/* Execute OPEN command	*/
+			tp->CMDqueue ^= OC_OPEN;
+
+			Addr = htonl(((char *)&tp->ocpl - (char *)tp) + tp->dmabuffer);
+			tp->scb.Parm[0] = LOWORD(Addr);
+			tp->scb.Parm[1] = HIWORD(Addr);
+			tp->scb.CMD = OPEN;
+		}
+		else
+			/* No OPEN command queued, but adapter closed. Note:
+			 * We'll try to re-open the adapter in DriverPoll()
+			 */
+			return;		/* No adapter command issued */
+	}
+	else
+	{
+		/* Adapter is open; evaluate command queue: try to execute
+		 * outstanding commands (depending on priority!) CLOSE
+		 * command queued
+		 */
+		if(tp->CMDqueue & OC_CLOSE)
+		{
+			tp->CMDqueue ^= OC_CLOSE;
+			tp->AdapterOpenFlag = 0;
+			tp->scb.Parm[0] = 0; /* Parm[0], Parm[1] are ignored */
+			tp->scb.Parm[1] = 0; /* but should be set to zero! */
+			tp->scb.CMD = CLOSE;
+			if(!tp->HaltInProgress)
+				tp->CMDqueue |= OC_OPEN; /* re-open adapter */
+			else
+				tp->CMDqueue = 0;	/* no more commands */
+		}
+		else
+		{
+			if(tp->CMDqueue & OC_RECEIVE)
+			{
+				tp->CMDqueue ^= OC_RECEIVE;
+				Addr = htonl(((char *)tp->RplHead - (char *)tp) + tp->dmabuffer);
+				tp->scb.Parm[0] = LOWORD(Addr);
+				tp->scb.Parm[1] = HIWORD(Addr);
+				tp->scb.CMD = RECEIVE;
+			}
+			else
+			{
+				if(tp->CMDqueue & OC_TRANSMIT_HALT)
+				{
+					/* NOTE: TRANSMIT.HALT must be checked 
+					 * before TRANSMIT.
+					 */
+					tp->CMDqueue ^= OC_TRANSMIT_HALT;
+					tp->scb.CMD = TRANSMIT_HALT;
+
+					/* Parm[0] and Parm[1] are ignored
+					 * but should be set to zero!
+					 */
+					tp->scb.Parm[0] = 0;
+					tp->scb.Parm[1] = 0;
+				}
+				else
+				{
+					if(tp->CMDqueue & OC_TRANSMIT)
+					{
+						/* NOTE: TRANSMIT must be 
+						 * checked after TRANSMIT.HALT
+						 */
+						if(tp->TransmitCommandActive)
+						{
+							if(!tp->TransmitHaltScheduled)
+							{
+								tp->TransmitHaltScheduled = 1;
+								tms380tr_exec_cmd(dev, OC_TRANSMIT_HALT) ;
+							}
+							tp->TransmitCommandActive = 0;
+							return;
+						}
+
+						tp->CMDqueue ^= OC_TRANSMIT;
+						tms380tr_cancel_tx_queue(tp);
+						Addr = htonl(((char *)tp->TplBusy - (char *)tp) + tp->dmabuffer);
+						tp->scb.Parm[0] = LOWORD(Addr);
+						tp->scb.Parm[1] = HIWORD(Addr);
+						tp->scb.CMD = TRANSMIT;
+						tp->TransmitCommandActive = 1;
+					}
+					else
+					{
+						if(tp->CMDqueue & OC_MODIFY_OPEN_PARMS)
+						{
+							tp->CMDqueue ^= OC_MODIFY_OPEN_PARMS;
+							tp->scb.Parm[0] = tp->ocpl.OPENOptions; /* new OPEN options*/
+							tp->scb.Parm[0] |= ENABLE_FULL_DUPLEX_SELECTION;
+							tp->scb.Parm[1] = 0; /* is ignored but should be zero */
+							tp->scb.CMD = MODIFY_OPEN_PARMS;
+						}
+						else
+						{
+							if(tp->CMDqueue & OC_SET_FUNCT_ADDR)
+							{
+								tp->CMDqueue ^= OC_SET_FUNCT_ADDR;
+								tp->scb.Parm[0] = LOWORD(tp->ocpl.FunctAddr);
+								tp->scb.Parm[1] = HIWORD(tp->ocpl.FunctAddr);
+								tp->scb.CMD = SET_FUNCT_ADDR;
+							}
+							else
+							{
+								if(tp->CMDqueue & OC_SET_GROUP_ADDR)
+								{
+									tp->CMDqueue ^= OC_SET_GROUP_ADDR;
+									tp->scb.Parm[0] = LOWORD(tp->ocpl.GroupAddr);
+									tp->scb.Parm[1] = HIWORD(tp->ocpl.GroupAddr);
+									tp->scb.CMD = SET_GROUP_ADDR;
+								}
+								else
+								{
+									if(tp->CMDqueue & OC_READ_ERROR_LOG)
+									{
+										tp->CMDqueue ^= OC_READ_ERROR_LOG;
+										Addr = htonl(((char *)&tp->errorlogtable - (char *)tp) + tp->dmabuffer);
+										tp->scb.Parm[0] = LOWORD(Addr);
+										tp->scb.Parm[1] = HIWORD(Addr);
+										tp->scb.CMD = READ_ERROR_LOG;
+									}
+									else
+									{
+										printk(KERN_WARNING "CheckForOutstandingCommand: unknown Command\n");
+										tp->CMDqueue = 0;
+										return;
+									}
+								}
+							}
+						}
+					}
+				}
+			}
+		}
+	}
+
+	tp->ScbInUse = 1;	/* Set semaphore: SCB in use. */
+
+	/* Execute SCB and generate IRQ when done. */
+	tms380tr_exec_sifcmd(dev, CMD_EXECUTE | CMD_SCB_REQUEST);
+
+	return;
+}
+
+/*
+ * IRQ conditions: signal loss on the ring, transmit or receive of beacon
+ * frames (disabled if bit 1 of OPEN option is set); report error MAC
+ * frame transmit (disabled if bit 2 of OPEN option is set); open or short
+ * circuit fault on the lobe is detected; remove MAC frame received;
+ * error counter overflow (255); opened adapter is the only station in ring.
+ * After some of the IRQs the adapter is closed!
+ */
+static void tms380tr_ring_status_irq(struct net_device *dev)
+{
+	struct net_local *tp = netdev_priv(dev);
+
+	tp->CurrentRingStatus = be16_to_cpu((unsigned short)tp->ssb.Parm[0]);
+
+	/* First: fill up statistics */
+	if(tp->ssb.Parm[0] & SIGNAL_LOSS)
+	{
+		printk(KERN_INFO "%s: Signal Loss\n", dev->name);
+		tp->MacStat.line_errors++;
+	}
+
+	/* Adapter is closed, but initialized */
+	if(tp->ssb.Parm[0] & LOBE_WIRE_FAULT)
+	{
+		printk(KERN_INFO "%s: Lobe Wire Fault, Reopen Adapter\n", 
+			dev->name);
+		tp->MacStat.line_errors++;
+	}
+
+	if(tp->ssb.Parm[0] & RING_RECOVERY)
+		printk(KERN_INFO "%s: Ring Recovery\n", dev->name);
+
+	/* Counter overflow: read error log */
+	if(tp->ssb.Parm[0] & COUNTER_OVERFLOW)
+	{
+		printk(KERN_INFO "%s: Counter Overflow\n", dev->name);
+		tms380tr_exec_cmd(dev, OC_READ_ERROR_LOG);
+	}
+
+	/* Adapter is closed, but initialized */
+	if(tp->ssb.Parm[0] & REMOVE_RECEIVED)
+		printk(KERN_INFO "%s: Remove Received, Reopen Adapter\n", 
+			dev->name);
+
+	/* Adapter is closed, but initialized */
+	if(tp->ssb.Parm[0] & AUTO_REMOVAL_ERROR)
+		printk(KERN_INFO "%s: Auto Removal Error, Reopen Adapter\n", 
+			dev->name);
+
+	if(tp->ssb.Parm[0] & HARD_ERROR)
+		printk(KERN_INFO "%s: Hard Error\n", dev->name);
+
+	if(tp->ssb.Parm[0] & SOFT_ERROR)
+		printk(KERN_INFO "%s: Soft Error\n", dev->name);
+
+	if(tp->ssb.Parm[0] & TRANSMIT_BEACON)
+		printk(KERN_INFO "%s: Transmit Beacon\n", dev->name);
+
+	if(tp->ssb.Parm[0] & SINGLE_STATION)
+		printk(KERN_INFO "%s: Single Station\n", dev->name);
+
+	/* Check if adapter has been closed */
+	if(tp->ssb.Parm[0] & ADAPTER_CLOSED)
+	{
+		printk(KERN_INFO "%s: Adapter closed (Reopening)," 
+			"CurrentRingStat %x\n",
+			dev->name, tp->CurrentRingStatus);
+		tp->AdapterOpenFlag = 0;
+		tms380tr_open_adapter(dev);
+	}
+
+	return;
+}
+
+/*
+ * Issued if adapter has encountered an unrecoverable hardware
+ * or software error.
+ */
+static void tms380tr_chk_irq(struct net_device *dev)
+{
+	int i;
+	unsigned short AdapterCheckBlock[4];
+	struct net_local *tp = netdev_priv(dev);
+
+	tp->AdapterOpenFlag = 0;	/* Adapter closed now */
+
+	/* Page number of adapter memory */
+	SIFWRITEW(0x0001, SIFADX);
+	/* Address offset */
+	SIFWRITEW(CHECKADDR, SIFADR);
+
+	/* Reading 8 byte adapter check block. */
+	for(i = 0; i < 4; i++)
+		AdapterCheckBlock[i] = SIFREADW(SIFINC);
+
+	if(tms380tr_debug > 3)
+	{
+		printk(KERN_DEBUG "%s: AdapterCheckBlock: ", dev->name);
+		for (i = 0; i < 4; i++)
+			printk("%04X", AdapterCheckBlock[i]);
+		printk("\n");
+	}
+
+	switch(AdapterCheckBlock[0])
+	{
+		case DIO_PARITY:
+			printk(KERN_INFO "%s: DIO parity error\n", dev->name);
+			break;
+
+		case DMA_READ_ABORT:
+			printk(KERN_INFO "%s DMA read operation aborted:\n",
+				dev->name);
+			switch (AdapterCheckBlock[1])
+			{
+				case 0:
+					printk(KERN_INFO "Timeout\n");
+					printk(KERN_INFO "Address: %04X %04X\n",
+						AdapterCheckBlock[2],
+						AdapterCheckBlock[3]);
+					break;
+
+				case 1:
+					printk(KERN_INFO "Parity error\n");
+					printk(KERN_INFO "Address: %04X %04X\n",
+						AdapterCheckBlock[2], 
+						AdapterCheckBlock[3]);
+					break;
+
+				case 2: 
+					printk(KERN_INFO "Bus error\n");
+					printk(KERN_INFO "Address: %04X %04X\n",
+						AdapterCheckBlock[2], 
+						AdapterCheckBlock[3]);
+					break;
+
+				default:
+					printk(KERN_INFO "Unknown error.\n");
+					break;
+			}
+			break;
+
+		case DMA_WRITE_ABORT:
+			printk(KERN_INFO "%s: DMA write operation aborted: \n",
+				dev->name);
+			switch (AdapterCheckBlock[1])
+			{
+				case 0: 
+					printk(KERN_INFO "Timeout\n");
+					printk(KERN_INFO "Address: %04X %04X\n",
+						AdapterCheckBlock[2], 
+						AdapterCheckBlock[3]);
+					break;
+
+				case 1: 
+					printk(KERN_INFO "Parity error\n");
+					printk(KERN_INFO "Address: %04X %04X\n",
+						AdapterCheckBlock[2], 
+						AdapterCheckBlock[3]);
+					break;
+
+				case 2: 
+					printk(KERN_INFO "Bus error\n");
+					printk(KERN_INFO "Address: %04X %04X\n",
+						AdapterCheckBlock[2], 
+						AdapterCheckBlock[3]);
+					break;
+
+				default:
+					printk(KERN_INFO "Unknown error.\n");
+					break;
+			}
+			break;
+
+		case ILLEGAL_OP_CODE:
+			printk(KERN_INFO "%s: Illegal operation code in firmware\n",
+				dev->name);
+			/* Parm[0-3]: adapter internal register R13-R15 */
+			break;
+
+		case PARITY_ERRORS:
+			printk(KERN_INFO "%s: Adapter internal bus parity error\n",
+				dev->name);
+			/* Parm[0-3]: adapter internal register R13-R15 */
+			break;
+
+		case RAM_DATA_ERROR:
+			printk(KERN_INFO "%s: RAM data error\n", dev->name);
+			/* Parm[0-1]: MSW/LSW address of RAM location. */
+			break;
+
+		case RAM_PARITY_ERROR:
+			printk(KERN_INFO "%s: RAM parity error\n", dev->name);
+			/* Parm[0-1]: MSW/LSW address of RAM location. */
+			break;
+
+		case RING_UNDERRUN:
+			printk(KERN_INFO "%s: Internal DMA underrun detected\n",
+				dev->name);
+			break;
+
+		case INVALID_IRQ:
+			printk(KERN_INFO "%s: Unrecognized interrupt detected\n",
+				dev->name);
+			/* Parm[0-3]: adapter internal register R13-R15 */
+			break;
+
+		case INVALID_ERROR_IRQ:
+			printk(KERN_INFO "%s: Unrecognized error interrupt detected\n",
+				dev->name);
+			/* Parm[0-3]: adapter internal register R13-R15 */
+			break;
+
+		case INVALID_XOP:
+			printk(KERN_INFO "%s: Unrecognized XOP request detected\n",
+				dev->name);
+			/* Parm[0-3]: adapter internal register R13-R15 */
+			break;
+
+		default:
+			printk(KERN_INFO "%s: Unknown status", dev->name);
+			break;
+	}
+
+	if(tms380tr_chipset_init(dev) == 1)
+	{
+		/* Restart of firmware successful */
+		tp->AdapterOpenFlag = 1;
+	}
+
+	return;
+}
+
+/*
+ * Internal adapter pointer to RAM data are copied from adapter into
+ * host system.
+ */
+static int tms380tr_read_ptr(struct net_device *dev)
+{
+	struct net_local *tp = netdev_priv(dev);
+	unsigned short adapterram;
+
+	tms380tr_read_ram(dev, (unsigned char *)&tp->intptrs.BurnedInAddrPtr,
+			ADAPTER_INT_PTRS, 16);
+	tms380tr_read_ram(dev, (unsigned char *)&adapterram,
+			cpu_to_be16((unsigned short)tp->intptrs.AdapterRAMPtr), 2);
+	return be16_to_cpu(adapterram); 
+}
+
+/*
+ * Reads a number of bytes from adapter to system memory.
+ */
+static void tms380tr_read_ram(struct net_device *dev, unsigned char *Data,
+				unsigned short Address, int Length)
+{
+	int i;
+	unsigned short old_sifadx, old_sifadr, InWord;
+
+	/* Save the current values */
+	old_sifadx = SIFREADW(SIFADX);
+	old_sifadr = SIFREADW(SIFADR);
+
+	/* Page number of adapter memory */
+	SIFWRITEW(0x0001, SIFADX);
+	/* Address offset in adapter RAM */
+        SIFWRITEW(Address, SIFADR);
+
+	/* Copy len byte from adapter memory to system data area. */
+	i = 0;
+	for(;;)
+	{
+		InWord = SIFREADW(SIFINC);
+
+		*(Data + i) = HIBYTE(InWord);	/* Write first byte */
+		if(++i == Length)		/* All is done break */
+			break;
+
+		*(Data + i) = LOBYTE(InWord);	/* Write second byte */
+		if (++i == Length)		/* All is done break */
+			break;
+	}
+
+	/* Restore original values */
+	SIFWRITEW(old_sifadx, SIFADX);
+	SIFWRITEW(old_sifadr, SIFADR);
+
+	return;
+}
+
+/*
+ * Cancel all queued packets in the transmission queue.
+ */
+static void tms380tr_cancel_tx_queue(struct net_local* tp)
+{
+	TPL *tpl;
+
+	/*
+	 * NOTE: There must not be an active TRANSMIT command pending, when
+	 * this function is called.
+	 */
+	if(tp->TransmitCommandActive)
+		return;
+
+	for(;;)
+	{
+		tpl = tp->TplBusy;
+		if(!tpl->BusyFlag)
+			break;
+		/* "Remove" TPL from busy list. */
+		tp->TplBusy = tpl->NextTPLPtr;
+		tms380tr_write_tpl_status(tpl, 0);	/* Clear VALID bit */
+		tpl->BusyFlag = 0;		/* "free" TPL */
+
+		printk(KERN_INFO "Cancel tx (%08lXh).\n", (unsigned long)tpl);
+		if (tpl->DMABuff)
+			pci_unmap_single(tp->pdev, tpl->DMABuff, tpl->Skb->len, PCI_DMA_TODEVICE);
+		dev_kfree_skb_any(tpl->Skb);
+	}
+
+	return;
+}
+
+/*
+ * This function is called whenever a transmit interrupt is generated by the
+ * adapter. For a command complete interrupt, it is checked if we have to
+ * issue a new transmit command or not.
+ */
+static void tms380tr_tx_status_irq(struct net_device *dev)
+{
+	struct net_local *tp = netdev_priv(dev);
+	unsigned char HighByte, HighAc, LowAc;
+	TPL *tpl;
+
+	/* NOTE: At this point the SSB from TRANSMIT STATUS is no longer
+	 * available, because the CLEAR SSB command has already been issued.
+	 *
+	 * Process all complete transmissions.
+	 */
+
+	for(;;)
+	{
+		tpl = tp->TplBusy;
+		if(!tpl->BusyFlag || (tpl->Status
+			& (TX_VALID | TX_FRAME_COMPLETE))
+			!= TX_FRAME_COMPLETE)
+		{
+			break;
+		}
+
+		/* "Remove" TPL from busy list. */
+		tp->TplBusy = tpl->NextTPLPtr ;
+
+		/* Check the transmit status field only for directed frames*/
+		if(DIRECTED_FRAME(tpl) && (tpl->Status & TX_ERROR) == 0)
+		{
+			HighByte = GET_TRANSMIT_STATUS_HIGH_BYTE(tpl->Status);
+			HighAc   = GET_FRAME_STATUS_HIGH_AC(HighByte);
+			LowAc    = GET_FRAME_STATUS_LOW_AC(HighByte);
+
+			if((HighAc != LowAc) || (HighAc == AC_NOT_RECOGNIZED))
+			{
+				printk(KERN_DEBUG "%s: (DA=%08lX not recognized)\n",
+					dev->name,
+					*(unsigned long *)&tpl->MData[2+2]);
+			}
+			else
+			{
+				if(tms380tr_debug > 3)
+					printk(KERN_DEBUG "%s: Directed frame tx'd\n", 
+						dev->name);
+			}
+		}
+		else
+		{
+			if(!DIRECTED_FRAME(tpl))
+			{
+				if(tms380tr_debug > 3)
+					printk(KERN_DEBUG "%s: Broadcast frame tx'd\n",
+						dev->name);
+			}
+		}
+
+		tp->MacStat.tx_packets++;
+		if (tpl->DMABuff)
+			pci_unmap_single(tp->pdev, tpl->DMABuff, tpl->Skb->len, PCI_DMA_TODEVICE);
+		dev_kfree_skb_irq(tpl->Skb);
+		tpl->BusyFlag = 0;	/* "free" TPL */
+	}
+
+	if(!tp->TplFree->NextTPLPtr->BusyFlag)
+		netif_wake_queue(dev);
+	return;
+}
+
+/*
+ * Called if a frame receive interrupt is generated by the adapter.
+ * Check if the frame is valid and indicate it to system.
+ */
+static void tms380tr_rcv_status_irq(struct net_device *dev)
+{
+	struct net_local *tp = netdev_priv(dev);
+	unsigned char *ReceiveDataPtr;
+	struct sk_buff *skb;
+	unsigned int Length, Length2;
+	RPL *rpl;
+	RPL *SaveHead;
+	dma_addr_t dmabuf;
+
+	/* NOTE: At this point the SSB from RECEIVE STATUS is no longer
+	 * available, because the CLEAR SSB command has already been issued.
+	 *
+	 * Process all complete receives.
+	 */
+
+	for(;;)
+	{
+		rpl = tp->RplHead;
+		if(rpl->Status & RX_VALID)
+			break;		/* RPL still in use by adapter */
+
+		/* Forward RPLHead pointer to next list. */
+		SaveHead = tp->RplHead;
+		tp->RplHead = rpl->NextRPLPtr;
+
+		/* Get the frame size (Byte swap for Intel).
+		 * Do this early (see workaround comment below)
+		 */
+		Length = be16_to_cpu((unsigned short)rpl->FrameSize);
+
+		/* Check if the Frame_Start, Frame_End and
+		 * Frame_Complete bits are set.
+		 */
+		if((rpl->Status & VALID_SINGLE_BUFFER_FRAME)
+			== VALID_SINGLE_BUFFER_FRAME)
+		{
+			ReceiveDataPtr = rpl->MData;
+
+			/* Workaround for delayed write of FrameSize on ISA
+			 * (FrameSize is false but valid-bit is reset)
+			 * Frame size is set to zero when the RPL is freed.
+			 * Length2 is there because there have also been
+			 * cases where the FrameSize was partially written
+			 */
+			Length2 = be16_to_cpu((unsigned short)rpl->FrameSize);
+
+			if(Length == 0 || Length != Length2)
+			{
+				tp->RplHead = SaveHead;
+				break;	/* Return to tms380tr_interrupt */
+			}
+			tms380tr_update_rcv_stats(tp,ReceiveDataPtr,Length);
+			  
+			if(tms380tr_debug > 3)
+				printk(KERN_DEBUG "%s: Packet Length %04X (%d)\n",
+					dev->name, Length, Length);
+			  
+			/* Indicate the received frame to system the
+			 * adapter does the Source-Routing padding for 
+			 * us. See: OpenOptions in tms380tr_init_opb()
+			 */
+			skb = rpl->Skb;
+			if(rpl->SkbStat == SKB_UNAVAILABLE)
+			{
+				/* Try again to allocate skb */
+				skb = dev_alloc_skb(tp->MaxPacketSize);
+				if(skb == NULL)
+				{
+					/* Update Stats ?? */
+				}
+				else
+				{
+					skb->dev	= dev;
+					skb_put(skb, tp->MaxPacketSize);
+					rpl->SkbStat 	= SKB_DATA_COPY;
+					ReceiveDataPtr 	= rpl->MData;
+				}
+			}
+
+			if(skb && (rpl->SkbStat == SKB_DATA_COPY
+				|| rpl->SkbStat == SKB_DMA_DIRECT))
+			{
+				if(rpl->SkbStat == SKB_DATA_COPY)
+					memcpy(skb->data, ReceiveDataPtr, Length);
+
+				/* Deliver frame to system */
+				rpl->Skb = NULL;
+				skb_trim(skb,Length);
+				skb->protocol = tr_type_trans(skb,dev);
+				netif_rx(skb);
+				dev->last_rx = jiffies;
+			}
+		}
+		else	/* Invalid frame */
+		{
+			if(rpl->Skb != NULL)
+				dev_kfree_skb_irq(rpl->Skb);
+
+			/* Skip list. */
+			if(rpl->Status & RX_START_FRAME)
+				/* Frame start bit is set -> overflow. */
+				tp->MacStat.rx_errors++;
+		}
+		if (rpl->DMABuff)
+			pci_unmap_single(tp->pdev, rpl->DMABuff, tp->MaxPacketSize, PCI_DMA_TODEVICE);
+		rpl->DMABuff = 0;
+
+		/* Allocate new skb for rpl */
+		rpl->Skb = dev_alloc_skb(tp->MaxPacketSize);
+		/* skb == NULL ? then use local buffer */
+		if(rpl->Skb == NULL)
+		{
+			rpl->SkbStat = SKB_UNAVAILABLE;
+			rpl->FragList[0].DataAddr = htonl(((char *)tp->LocalRxBuffers[rpl->RPLIndex] - (char *)tp) + tp->dmabuffer);
+			rpl->MData = tp->LocalRxBuffers[rpl->RPLIndex];
+		}
+		else	/* skb != NULL */
+		{
+			rpl->Skb->dev = dev;
+			skb_put(rpl->Skb, tp->MaxPacketSize);
+
+			/* Data unreachable for DMA ? then use local buffer */
+			dmabuf = pci_map_single(tp->pdev, rpl->Skb->data, tp->MaxPacketSize, PCI_DMA_FROMDEVICE);
+			if(tp->dmalimit && (dmabuf + tp->MaxPacketSize > tp->dmalimit))
+			{
+				rpl->SkbStat = SKB_DATA_COPY;
+				rpl->FragList[0].DataAddr = htonl(((char *)tp->LocalRxBuffers[rpl->RPLIndex] - (char *)tp) + tp->dmabuffer);
+				rpl->MData = tp->LocalRxBuffers[rpl->RPLIndex];
+			}
+			else
+			{
+				/* DMA directly in skb->data */
+				rpl->SkbStat = SKB_DMA_DIRECT;
+				rpl->FragList[0].DataAddr = htonl(dmabuf);
+				rpl->MData = rpl->Skb->data;
+				rpl->DMABuff = dmabuf;
+			}
+		}
+
+		rpl->FragList[0].DataCount = cpu_to_be16((unsigned short)tp->MaxPacketSize);
+		rpl->FrameSize = 0;
+
+		/* Pass the last RPL back to the adapter */
+		tp->RplTail->FrameSize = 0;
+
+		/* Reset the CSTAT field in the list. */
+		tms380tr_write_rpl_status(tp->RplTail, RX_VALID | RX_FRAME_IRQ);
+
+		/* Current RPL becomes last one in list. */
+		tp->RplTail = tp->RplTail->NextRPLPtr;
+
+		/* Inform adapter about RPL valid. */
+		tms380tr_exec_sifcmd(dev, CMD_RX_VALID);
+	}
+
+	return;
+}
+
+/*
+ * This function should be used whenever the status of any RPL must be
+ * modified by the driver, because the compiler may otherwise change the
+ * order of instructions such that writing the RPL status may be executed
+ * at an undesireable time. When this function is used, the status is
+ * always written when the function is called.
+ */
+static void tms380tr_write_rpl_status(RPL *rpl, unsigned int Status)
+{
+	rpl->Status = Status;
+
+	return;
+}
+
+/*
+ * The function updates the statistic counters in mac->MacStat.
+ * It differtiates between directed and broadcast/multicast ( ==functional)
+ * frames.
+ */
+static void tms380tr_update_rcv_stats(struct net_local *tp, unsigned char DataPtr[],
+					unsigned int Length)
+{
+	tp->MacStat.rx_packets++;
+	tp->MacStat.rx_bytes += Length;
+	
+	/* Test functional bit */
+	if(DataPtr[2] & GROUP_BIT)
+		tp->MacStat.multicast++;
+
+	return;
+}
+
+static int tms380tr_set_mac_address(struct net_device *dev, void *addr)
+{
+	struct net_local *tp = netdev_priv(dev);
+	struct sockaddr *saddr = addr;
+	
+	if (tp->AdapterOpenFlag || tp->AdapterVirtOpenFlag) {
+		printk(KERN_WARNING "%s: Cannot set MAC/LAA address while card is open\n", dev->name);
+		return -EIO;
+	}
+	memcpy(dev->dev_addr, saddr->sa_data, dev->addr_len);
+	return 0;
+}
+
+#if TMS380TR_DEBUG > 0
+/*
+ * Dump Packet (data)
+ */
+static void tms380tr_dump(unsigned char *Data, int length)
+{
+	int i, j;
+
+	for (i = 0, j = 0; i < length / 8; i++, j += 8)
+	{
+		printk(KERN_DEBUG "%02x %02x %02x %02x %02x %02x %02x %02x\n",
+		       Data[j+0],Data[j+1],Data[j+2],Data[j+3],
+		       Data[j+4],Data[j+5],Data[j+6],Data[j+7]);
+	}
+
+	return;
+}
+#endif
+
+void tmsdev_term(struct net_device *dev)
+{
+	struct net_local *tp;
+
+	tp = netdev_priv(dev);
+	pci_unmap_single(tp->pdev, tp->dmabuffer, sizeof(struct net_local),
+		PCI_DMA_BIDIRECTIONAL);
+}
+
+int tmsdev_init(struct net_device *dev, unsigned long dmalimit, 
+		struct pci_dev *pdev)
+{
+	struct net_local *tms_local;
+
+	memset(dev->priv, 0, sizeof(struct net_local));
+	tms_local = netdev_priv(dev);
+	init_waitqueue_head(&tms_local->wait_for_tok_int);
+	tms_local->dmalimit = dmalimit;
+	tms_local->pdev = pdev;
+	tms_local->dmabuffer = pci_map_single(pdev, (void *)tms_local,
+	    sizeof(struct net_local), PCI_DMA_BIDIRECTIONAL);
+	if (tms_local->dmabuffer + sizeof(struct net_local) > dmalimit)
+	{
+		printk(KERN_INFO "%s: Memory not accessible for DMA\n",
+			dev->name);
+		tmsdev_term(dev);
+		return -ENOMEM;
+	}
+	
+	/* These can be overridden by the card driver if needed */
+	dev->open		= tms380tr_open;
+	dev->stop		= tms380tr_close;
+	dev->do_ioctl		= NULL; 
+	dev->hard_start_xmit	= tms380tr_send_packet;
+	dev->tx_timeout		= tms380tr_timeout;
+	dev->watchdog_timeo	= HZ;
+	dev->get_stats		= tms380tr_get_stats;
+	dev->set_multicast_list = &tms380tr_set_multicast_list;
+	dev->set_mac_address	= tms380tr_set_mac_address;
+
+	return 0;
+}
+
+#ifdef MODULE
+
+EXPORT_SYMBOL(tms380tr_open);
+EXPORT_SYMBOL(tms380tr_close);
+EXPORT_SYMBOL(tms380tr_interrupt);
+EXPORT_SYMBOL(tmsdev_init);
+EXPORT_SYMBOL(tmsdev_term);
+EXPORT_SYMBOL(tms380tr_wait);
+
+struct module *TMS380_module = NULL;
+
+int init_module(void)
+{
+	printk(KERN_DEBUG "%s", version);
+	
+	TMS380_module = &__this_module;
+	return 0;
+}
+
+void cleanup_module(void)
+{
+	TMS380_module = NULL;
+}
+#endif
+
+MODULE_LICENSE("GPL");
+
+
+/*
+ * Local variables:
+ *  compile-command: "gcc -DMODVERSIONS  -DMODULE -D__KERNEL__ -Wall -Wstrict-prototypes -O6 -fomit-frame-pointer -I/usr/src/linux/drivers/net/tokenring/ -c tms380tr.c"
+ *  alt-compile-command: "gcc -DMODULE -D__KERNEL__ -Wall -Wstrict-prototypes -O6 -fomit-frame-pointer -I/usr/src/linux/drivers/net/tokenring/ -c tms380tr.c"
+ *  c-set-style "K&R"
+ *  c-indent-level: 8
+ *  c-basic-offset: 8
+ *  tab-width: 8
+ * End:
+ */