diff options
| -rw-r--r-- | drivers/usb/net/Kconfig | 34 | ||||
| -rw-r--r-- | drivers/usb/net/Makefile | 1 | ||||
| -rw-r--r-- | drivers/usb/net/usbnet.c | 357 | ||||
| -rw-r--r-- | drivers/usb/net/usbnet.h | 22 | ||||
| -rw-r--r-- | drivers/usb/net/zaurus.c | 386 |
5 files changed, 433 insertions, 367 deletions
diff --git a/drivers/usb/net/Kconfig b/drivers/usb/net/Kconfig index 0aafd599d7d4..20de10916a4e 100644 --- a/drivers/usb/net/Kconfig +++ b/drivers/usb/net/Kconfig @@ -140,23 +140,6 @@ config USB_PL2301 comment "Intelligent USB Devices/Gadgets" depends on USB_USBNET -config USB_ZAURUS - boolean "Sharp Zaurus (stock ROMs) and compatible" - depends on USB_USBNET - select CRC32 - default y - help - Choose this option to support the usb networking links used by - Zaurus models like the SL-5000D, SL-5500, SL-5600, A-300, B-500. - This also supports some related device firmware, as used in some - PDAs from Olympus and some cell phones from Motorola. - - If you install an alternate ROM image, such as the Linux 2.6 based - versions of OpenZaurus, you should no longer need to support this - protocol. Only the "eth-fd" or "net_fd" drivers in these devices - really need this non-conformant variant of CDC Ethernet (or in - some cases CDC MDLM) protocol, not "g_ether". - config USB_CDCETHER boolean "CDC Ethernet support (smart devices such as cable modems)" depends on USB_USBNET @@ -294,6 +277,23 @@ config USB_EPSON2888 Choose this option to support the usb networking links used by some sample firmware from Epson. +config USB_NET_ZAURUS + tristate "Sharp Zaurus (stock ROMs) and compatible" + depends on USB_USBNET + select CRC32 + default y + help + Choose this option to support the usb networking links used by + Zaurus models like the SL-5000D, SL-5500, SL-5600, A-300, B-500. + This also supports some related device firmware, as used in some + PDAs from Olympus and some cell phones from Motorola. + + If you install an alternate ROM image, such as the Linux 2.6 based + versions of OpenZaurus, you should no longer need to support this + protocol. Only the "eth-fd" or "net_fd" drivers in these devices + really need this non-conformant variant of CDC Ethernet (or in + some cases CDC MDLM) protocol, not "g_ether". + config USB_ZD1201 tristate "USB ZD1201 based Wireless device support" diff --git a/drivers/usb/net/Makefile b/drivers/usb/net/Makefile index f9b181e91c1f..e13d7af3114b 100644 --- a/drivers/usb/net/Makefile +++ b/drivers/usb/net/Makefile @@ -10,5 +10,6 @@ obj-$(CONFIG_USB_NET_AX8817X) += asix.o obj-$(CONFIG_USB_NET_GL620A) += gl620a.o obj-$(CONFIG_USB_NET_NET1080) += net1080.o obj-$(CONFIG_USB_NET_CDC_SUBSET) += cdc_subset.o +obj-$(CONFIG_USB_NET_ZAURUS) += zaurus.o obj-$(CONFIG_USB_USBNET) += usbnet.o obj-$(CONFIG_USB_ZD1201) += zd1201.o diff --git a/drivers/usb/net/usbnet.c b/drivers/usb/net/usbnet.c index d52480aced80..75a05ab0a642 100644 --- a/drivers/usb/net/usbnet.c +++ b/drivers/usb/net/usbnet.c @@ -1,7 +1,6 @@ /* * USB Networking Links * Copyright (C) 2000-2005 by David Brownell - * Copyright (C) 2002 Pavel Machek <pavel@ucw.cz> * Copyright (C) 2003-2005 David Hollis <dhollis@davehollis.com> * * This program is free software; you can redistribute it and/or modify @@ -173,14 +172,6 @@ MODULE_PARM_DESC (msg_level, "Override default message level"); /*-------------------------------------------------------------------------*/ -static u32 usbnet_get_link (struct net_device *); - -/* mostly for PDA style devices, which are always connected if present */ -static int always_connected (struct usbnet *dev) -{ - return 0; -} - /* handles CDC Ethernet and many other network "bulk data" interfaces */ int usbnet_get_endpoints(struct usbnet *dev, struct usb_interface *intf) { @@ -321,7 +312,7 @@ EXPORT_SYMBOL_GPL(usbnet_skb_return); #define NEED_GENERIC_CDC #endif -#ifdef CONFIG_USB_ZAURUS +#if defined(CONFIG_USB_ZAURUS) || defined(CONFIG_USB_ZAURUS_MODULE) /* Ethernet variant uses funky framing, broken ethernet addressing */ #define NEED_GENERIC_CDC #endif @@ -336,14 +327,6 @@ EXPORT_SYMBOL_GPL(usbnet_skb_return); #include <linux/usb_cdc.h> -struct cdc_state { - struct usb_cdc_header_desc *header; - struct usb_cdc_union_desc *u; - struct usb_cdc_ether_desc *ether; - struct usb_interface *control; - struct usb_interface *data; -}; - static struct usb_driver usbnet_driver; /* @@ -351,7 +334,7 @@ static struct usb_driver usbnet_driver; * endpoints, activates data interface (if needed), maybe sets MTU. * all pure cdc, except for certain firmware workarounds. */ -static int generic_cdc_bind (struct usbnet *dev, struct usb_interface *intf) +int usbnet_generic_cdc_bind (struct usbnet *dev, struct usb_interface *intf) { u8 *buf = intf->cur_altsetting->extra; int len = intf->cur_altsetting->extralen; @@ -530,8 +513,9 @@ bad_desc: dev_info (&dev->udev->dev, "bad CDC descriptors\n"); return -ENODEV; } +EXPORT_SYMBOL_GPL(usbnet_generic_cdc_bind); -static void cdc_unbind (struct usbnet *dev, struct usb_interface *intf) +void usbnet_cdc_unbind (struct usbnet *dev, struct usb_interface *intf) { struct cdc_state *info = (void *) &dev->data; @@ -551,6 +535,7 @@ static void cdc_unbind (struct usbnet *dev, struct usb_interface *intf) info->control = NULL; } } +EXPORT_SYMBOL_GPL(usbnet_cdc_unbind); #endif /* NEED_GENERIC_CDC */ @@ -657,7 +642,7 @@ static int cdc_bind (struct usbnet *dev, struct usb_interface *intf) int status; struct cdc_state *info = (void *) &dev->data; - status = generic_cdc_bind (dev, intf); + status = usbnet_generic_cdc_bind (dev, intf); if (status < 0) return status; @@ -679,7 +664,7 @@ static const struct driver_info cdc_info = { .flags = FLAG_ETHER, // .check_connect = cdc_check_connect, .bind = cdc_bind, - .unbind = cdc_unbind, + .unbind = usbnet_cdc_unbind, .status = cdc_status, }; @@ -758,239 +743,6 @@ static const struct driver_info prolific_info = { #endif /* CONFIG_USB_PL2301 */ -#ifdef CONFIG_USB_ZAURUS -#define HAVE_HARDWARE - -#include <linux/crc32.h> - -/*------------------------------------------------------------------------- - * - * Zaurus is also a SA-1110 based PDA, but one using a different driver - * (and framing) for its USB slave/gadget controller than the case above. - * - * For the current version of that driver, the main way that framing is - * nonstandard (also from perspective of the CDC ethernet model!) is a - * crc32, added to help detect when some sa1100 usb-to-memory DMA errata - * haven't been fully worked around. Also, all Zaurii use the same - * default Ethernet address. - * - * PXA based models use the same framing, and also can't implement - * set_interface properly. - * - * All known Zaurii lie about their standards conformance. Most lie by - * saying they support CDC Ethernet. Some lie and say they support CDC - * MDLM (as if for access to cell phone modems). Someone, please beat - * on Sharp (and other such vendors) for a while with a cluestick. - * - *-------------------------------------------------------------------------*/ - -static struct sk_buff * -zaurus_tx_fixup (struct usbnet *dev, struct sk_buff *skb, unsigned flags) -{ - int padlen; - struct sk_buff *skb2; - - padlen = 2; - if (!skb_cloned (skb)) { - int tailroom = skb_tailroom (skb); - if ((padlen + 4) <= tailroom) - goto done; - } - skb2 = skb_copy_expand (skb, 0, 4 + padlen, flags); - dev_kfree_skb_any (skb); - skb = skb2; - if (skb) { - u32 fcs; -done: - fcs = crc32_le (~0, skb->data, skb->len); - fcs = ~fcs; - - *skb_put (skb, 1) = fcs & 0xff; - *skb_put (skb, 1) = (fcs>> 8) & 0xff; - *skb_put (skb, 1) = (fcs>>16) & 0xff; - *skb_put (skb, 1) = (fcs>>24) & 0xff; - } - return skb; -} - -static int zaurus_bind (struct usbnet *dev, struct usb_interface *intf) -{ - /* Belcarra's funky framing has other options; mostly - * TRAILERS (!) with 4 bytes CRC, and maybe 2 pad bytes. - */ - dev->net->hard_header_len += 6; - return generic_cdc_bind(dev, intf); -} - -static const struct driver_info zaurus_sl5x00_info = { - .description = "Sharp Zaurus SL-5x00", - .flags = FLAG_FRAMING_Z, - .check_connect = always_connected, - .bind = zaurus_bind, - .unbind = cdc_unbind, - .tx_fixup = zaurus_tx_fixup, -}; -#define ZAURUS_STRONGARM_INFO ((unsigned long)&zaurus_sl5x00_info) - -static const struct driver_info zaurus_pxa_info = { - .description = "Sharp Zaurus, PXA-2xx based", - .flags = FLAG_FRAMING_Z, - .check_connect = always_connected, - .bind = zaurus_bind, - .unbind = cdc_unbind, - .tx_fixup = zaurus_tx_fixup, -}; -#define ZAURUS_PXA_INFO ((unsigned long)&zaurus_pxa_info) - -static const struct driver_info olympus_mxl_info = { - .description = "Olympus R1000", - .flags = FLAG_FRAMING_Z, - .check_connect = always_connected, - .bind = zaurus_bind, - .unbind = cdc_unbind, - .tx_fixup = zaurus_tx_fixup, -}; -#define OLYMPUS_MXL_INFO ((unsigned long)&olympus_mxl_info) - - -/* Some more recent products using Lineo/Belcarra code will wrongly claim - * CDC MDLM conformance. They aren't conformant: data endpoints live - * in the control interface, there's no data interface, and it's not used - * to talk to a cell phone radio. But at least we can detect these two - * pseudo-classes, rather than growing this product list with entries for - * each new nonconformant product (sigh). - */ -static const u8 safe_guid[16] = { - 0x5d, 0x34, 0xcf, 0x66, 0x11, 0x18, 0x11, 0xd6, - 0xa2, 0x1a, 0x00, 0x01, 0x02, 0xca, 0x9a, 0x7f, -}; -static const u8 blan_guid[16] = { - 0x74, 0xf0, 0x3d, 0xbd, 0x1e, 0xc1, 0x44, 0x70, - 0xa3, 0x67, 0x71, 0x34, 0xc9, 0xf5, 0x54, 0x37, -}; - -static int blan_mdlm_bind (struct usbnet *dev, struct usb_interface *intf) -{ - u8 *buf = intf->cur_altsetting->extra; - int len = intf->cur_altsetting->extralen; - struct usb_cdc_mdlm_desc *desc = NULL; - struct usb_cdc_mdlm_detail_desc *detail = NULL; - - while (len > 3) { - if (buf [1] != USB_DT_CS_INTERFACE) - goto next_desc; - - /* use bDescriptorSubType, and just verify that we get a - * "BLAN" (or "SAFE") descriptor. - */ - switch (buf [2]) { - case USB_CDC_MDLM_TYPE: - if (desc) { - dev_dbg (&intf->dev, "extra MDLM\n"); - goto bad_desc; - } - desc = (void *) buf; - if (desc->bLength != sizeof *desc) { - dev_dbg (&intf->dev, "MDLM len %u\n", - desc->bLength); - goto bad_desc; - } - /* expect bcdVersion 1.0, ignore */ - if (memcmp(&desc->bGUID, blan_guid, 16) - && memcmp(&desc->bGUID, safe_guid, 16) ) { - /* hey, this one might _really_ be MDLM! */ - dev_dbg (&intf->dev, "MDLM guid\n"); - goto bad_desc; - } - break; - case USB_CDC_MDLM_DETAIL_TYPE: - if (detail) { - dev_dbg (&intf->dev, "extra MDLM detail\n"); - goto bad_desc; - } - detail = (void *) buf; - switch (detail->bGuidDescriptorType) { - case 0: /* "SAFE" */ - if (detail->bLength != (sizeof *detail + 2)) - goto bad_detail; - break; - case 1: /* "BLAN" */ - if (detail->bLength != (sizeof *detail + 3)) - goto bad_detail; - break; - default: - goto bad_detail; - } - - /* assuming we either noticed BLAN already, or will - * find it soon, there are some data bytes here: - * - bmNetworkCapabilities (unused) - * - bmDataCapabilities (bits, see below) - * - bPad (ignored, for PADAFTER -- BLAN-only) - * bits are: - * - 0x01 -- Zaurus framing (add CRC) - * - 0x02 -- PADBEFORE (CRC includes some padding) - * - 0x04 -- PADAFTER (some padding after CRC) - * - 0x08 -- "fermat" packet mangling (for hw bugs) - * the PADBEFORE appears not to matter; we interop - * with devices that use it and those that don't. - */ - if ((detail->bDetailData[1] & ~02) != 0x01) { - /* bmDataCapabilites == 0 would be fine too, - * but framing is minidriver-coupled for now. - */ -bad_detail: - dev_dbg (&intf->dev, - "bad MDLM detail, %d %d %d\n", - detail->bLength, - detail->bDetailData[0], - detail->bDetailData[2]); - goto bad_desc; - } - break; - } -next_desc: - len -= buf [0]; /* bLength */ - buf += buf [0]; - } - - if (!desc || !detail) { - dev_dbg (&intf->dev, "missing cdc mdlm %s%sdescriptor\n", - desc ? "" : "func ", - detail ? "" : "detail "); - goto bad_desc; - } - - /* There's probably a CDC Ethernet descriptor there, but we can't - * rely on the Ethernet address it provides since not all vendors - * bother to make it unique. Likewise there's no point in tracking - * of the CDC event notifications. - */ - return usbnet_get_endpoints (dev, intf); - -bad_desc: - dev_info (&dev->udev->dev, "unsupported MDLM descriptors\n"); - return -ENODEV; -} - -static const struct driver_info bogus_mdlm_info = { - .description = "pseudo-MDLM (BLAN) device", - .flags = FLAG_FRAMING_Z, - .check_connect = always_connected, - .tx_fixup = zaurus_tx_fixup, - .bind = blan_mdlm_bind, -}; - -#else - -/* blacklist all those devices */ -#define ZAURUS_STRONGARM_INFO 0 -#define ZAURUS_PXA_INFO 0 -#define OLYMPUS_MXL_INFO 0 - -#endif - - /*------------------------------------------------------------------------- * * Network Device Driver (peer link to "Host Device", from USB host) @@ -2003,101 +1755,6 @@ static const struct usb_device_id products [] = { }, #endif -#if defined(CONFIG_USB_ZAURUS) || defined(CONFIG_USB_CDCETHER) -/* - * SA-1100 based Sharp Zaurus ("collie"), or compatible. - * Same idea as above, but different framing. - * - * PXA-2xx based models are also lying-about-cdc. - * Some models don't even tell the same lies ... - * - * NOTE: OpenZaurus versions with 2.6 kernels won't use these entries, - * unlike the older ones with 2.4 "embedix" kernels. - * - * NOTE: These entries do double-duty, serving as blacklist entries - * whenever Zaurus support isn't enabled, but CDC Ethernet is. - */ -#define ZAURUS_MASTER_INTERFACE \ - .bInterfaceClass = USB_CLASS_COMM, \ - .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET, \ - .bInterfaceProtocol = USB_CDC_PROTO_NONE -{ - .match_flags = USB_DEVICE_ID_MATCH_INT_INFO - | USB_DEVICE_ID_MATCH_DEVICE, - .idVendor = 0x04DD, - .idProduct = 0x8004, - ZAURUS_MASTER_INTERFACE, - .driver_info = ZAURUS_STRONGARM_INFO, -}, { - .match_flags = USB_DEVICE_ID_MATCH_INT_INFO - | USB_DEVICE_ID_MATCH_DEVICE, - .idVendor = 0x04DD, - .idProduct = 0x8005, /* A-300 */ - ZAURUS_MASTER_INTERFACE, - .driver_info = ZAURUS_PXA_INFO, -}, { - .match_flags = USB_DEVICE_ID_MATCH_INT_INFO - | USB_DEVICE_ID_MATCH_DEVICE, - .idVendor = 0x04DD, - .idProduct = 0x8006, /* B-500/SL-5600 */ - ZAURUS_MASTER_INTERFACE, - .driver_info = ZAURUS_PXA_INFO, -}, { - .match_flags = USB_DEVICE_ID_MATCH_INT_INFO - | USB_DEVICE_ID_MATCH_DEVICE, - .idVendor = 0x04DD, - .idProduct = 0x8007, /* C-700 */ - ZAURUS_MASTER_INTERFACE, - .driver_info = ZAURUS_PXA_INFO, -}, { - .match_flags = USB_DEVICE_ID_MATCH_INT_INFO - | USB_DEVICE_ID_MATCH_DEVICE, - .idVendor = 0x04DD, - .idProduct = 0x9031, /* C-750 C-760 */ - ZAURUS_MASTER_INTERFACE, - .driver_info = ZAURUS_PXA_INFO, -}, { - .match_flags = USB_DEVICE_ID_MATCH_INT_INFO - | USB_DEVICE_ID_MATCH_DEVICE, - .idVendor = 0x04DD, - .idProduct = 0x9032, /* SL-6000 */ - ZAURUS_MASTER_INTERFACE, - .driver_info = ZAURUS_PXA_INFO, -}, { - .match_flags = USB_DEVICE_ID_MATCH_INT_INFO - | USB_DEVICE_ID_MATCH_DEVICE, - .idVendor = 0x04DD, - /* reported with some C860 units */ - .idProduct = 0x9050, /* C-860 */ - ZAURUS_MASTER_INTERFACE, - .driver_info = ZAURUS_PXA_INFO, -}, - -#ifdef CONFIG_USB_ZAURUS - /* At least some (reports vary) PXA units have very different lies - * about their standards support: they claim to be cell phones with - * direct access to their radios. (They don't conform to CDC MDLM.) - */ -{ - USB_INTERFACE_INFO (USB_CLASS_COMM, USB_CDC_SUBCLASS_MDLM, - USB_CDC_PROTO_NONE), - .driver_info = (unsigned long) &bogus_mdlm_info, -}, -#endif - -/* Olympus has some models with a Zaurus-compatible option. - * R-1000 uses a FreeScale i.MXL cpu (ARMv4T) - */ -{ - .match_flags = USB_DEVICE_ID_MATCH_INT_INFO - | USB_DEVICE_ID_MATCH_DEVICE, - .idVendor = 0x07B4, - .idProduct = 0x0F02, /* R-1000 */ - ZAURUS_MASTER_INTERFACE, - .driver_info = OLYMPUS_MXL_INFO, -}, -#endif - #ifdef CONFIG_USB_CDCETHER { /* CDC Ether uses two interfaces, not necessarily consecutive. diff --git a/drivers/usb/net/usbnet.h b/drivers/usb/net/usbnet.h index 21b5feb54fc0..7aa0abd1a9bd 100644 --- a/drivers/usb/net/usbnet.h +++ b/drivers/usb/net/usbnet.h @@ -126,6 +126,28 @@ extern int usbnet_resume (struct usb_interface *); extern void usbnet_disconnect(struct usb_interface *); +/* Drivers that reuse some of the standard USB CDC infrastructure + * (notably, using multiple interfaces according to the the CDC + * union descriptor) get some helper code. + */ +struct cdc_state { + struct usb_cdc_header_desc *header; + struct usb_cdc_union_desc *u; + struct usb_cdc_ether_desc *ether; + struct usb_interface *control; + struct usb_interface *data; +}; + +extern int usbnet_generic_cdc_bind (struct usbnet *, struct usb_interface *); +extern void usbnet_cdc_unbind (struct usbnet *, struct usb_interface *); + +/* CDC and RNDIS support the same host-chosen packet filters for IN transfers */ +#define DEFAULT_FILTER (USB_CDC_PACKET_TYPE_BROADCAST \ + |USB_CDC_PACKET_TYPE_ALL_MULTICAST \ + |USB_CDC_PACKET_TYPE_PROMISCUOUS \ + |USB_CDC_PACKET_TYPE_DIRECTED) + + /* we record the state for each of our queued skbs */ enum skb_state { illegal = 0, diff --git a/drivers/usb/net/zaurus.c b/drivers/usb/net/zaurus.c new file mode 100644 index 000000000000..ee3b892aeabc --- /dev/null +++ b/drivers/usb/net/zaurus.c @@ -0,0 +1,386 @@ +/* + * Copyright (C) 2002 Pavel Machek <pavel@ucw.cz> + * Copyright (C) 2002-2005 by David Brownell + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +// #define DEBUG // error path messages, extra info +// #define VERBOSE // more; success messages + +#include <linux/config.h> +#ifdef CONFIG_USB_DEBUG +# define DEBUG +#endif +#include <linux/module.h> +#include <linux/sched.h> +#include <linux/init.h> +#include <linux/netdevice.h> +#include <linux/ethtool.h> +#include <linux/workqueue.h> +#include <linux/mii.h> +#include <linux/crc32.h> +#include <linux/usb.h> +#include <linux/usb_cdc.h> + +#include "usbnet.h" + + +/* + * All known Zaurii lie about their standards conformance. At least + * the earliest SA-1100 models lie by saying they support CDC Ethernet. + * Some later models (especially PXA-25x and PXA-27x based ones) lie + * and say they support CDC MDLM (for access to cell phone modems). + * + * There are non-Zaurus products that use these same protocols too. + * + * The annoying thing is that at the same time Sharp was developing + * that annoying standards-breaking software, the Linux community had + * a simple "CDC Subset" working reliably on the same SA-1100 hardware. + * That is, the same functionality but not violating standards. + * + * The CDC Ethernet nonconformance points are troublesome to hosts + * with a true CDC Ethernet implementation: + * - Framing appends a CRC, which the spec says drivers "must not" do; + * - Transfers data in altsetting zero, instead of altsetting 1; + * - All these peripherals use the same ethernet address. + * + * The CDC MDLM nonconformance is less immediately troublesome, since all + * MDLM implementations are quasi-proprietary anyway. + */ + +static struct sk_buff * +zaurus_tx_fixup(struct usbnet *dev, struct sk_buff *skb, unsigned flags) +{ + int padlen; + struct sk_buff *skb2; + + padlen = 2; + if (!skb_cloned(skb)) { + int tailroom = skb_tailroom(skb); + if ((padlen + 4) <= tailroom) + goto done; + } + skb2 = skb_copy_expand(skb, 0, 4 + padlen, flags); + dev_kfree_skb_any(skb); + skb = skb2; + if (skb) { + u32 fcs; +done: + fcs = crc32_le(~0, skb->data, skb->len); + fcs = ~fcs; + + *skb_put (skb, 1) = fcs & 0xff; + *skb_put (skb, 1) = (fcs>> 8) & 0xff; + *skb_put (skb, 1) = (fcs>>16) & 0xff; + *skb_put (skb, 1) = (fcs>>24) & 0xff; + } + return skb; +} + +static int zaurus_bind(struct usbnet *dev, struct usb_interface *intf) +{ + /* Belcarra's funky framing has other options; mostly + * TRAILERS (!) with 4 bytes CRC, and maybe 2 pad bytes. + */ + dev->net->hard_header_len += 6; + dev->rx_urb_size = dev->net->hard_header_len + dev->net->mtu; + return usbnet_generic_cdc_bind(dev, intf); +} + +/* PDA style devices are always connected if present */ +static int always_connected (struct usbnet *dev) +{ + return 0; +} + +static const struct driver_info zaurus_sl5x00_info = { + .description = "Sharp Zaurus SL-5x00", + .flags = FLAG_FRAMING_Z, + .check_connect = always_connected, + .bind = zaurus_bind, + .unbind = usbnet_cdc_unbind, + .tx_fixup = zaurus_tx_fixup, +}; +#define ZAURUS_STRONGARM_INFO ((unsigned long)&zaurus_sl5x00_info) + +static const struct driver_info zaurus_pxa_info = { + .description = "Sharp Zaurus, PXA-2xx based", + .flags = FLAG_FRAMING_Z, + .check_connect = always_connected, + .bind = zaurus_bind, + .unbind = usbnet_cdc_unbind, + .tx_fixup = zaurus_tx_fixup, +}; +#define ZAURUS_PXA_INFO ((unsigned long)&zaurus_pxa_info) + +static const struct driver_info olympus_mxl_info = { + .description = "Olympus R1000", + .flags = FLAG_FRAMING_Z, + .check_connect = always_connected, + .bind = zaurus_bind, + .unbind = usbnet_cdc_unbind, + .tx_fixup = zaurus_tx_fixup, +}; +#define OLYMPUS_MXL_INFO ((unsigned long)&olympus_mxl_info) + + +/* Some more recent products using Lineo/Belcarra code will wrongly claim + * CDC MDLM conformance. They aren't conformant: data endpoints live + * in the control interface, there's no data interface, and it's not used + * to talk to a cell phone radio. But at least we can detect these two + * pseudo-classes, rather than growing this product list with entries for + * each new nonconformant product (sigh). + */ +static const u8 safe_guid[16] = { + 0x5d, 0x34, 0xcf, 0x66, 0x11, 0x18, 0x11, 0xd6, + 0xa2, 0x1a, 0x00, 0x01, 0x02, 0xca, 0x9a, 0x7f, +}; +static const u8 blan_guid[16] = { + 0x74, 0xf0, 0x3d, 0xbd, 0x1e, 0xc1, 0x44, 0x70, + 0xa3, 0x67, 0x71, 0x34, 0xc9, 0xf5, 0x54, 0x37, +}; + +static int blan_mdlm_bind(struct usbnet *dev, struct usb_interface *intf) +{ + u8 *buf = intf->cur_altsetting->extra; + int len = intf->cur_altsetting->extralen; + struct usb_cdc_mdlm_desc *desc = NULL; + struct usb_cdc_mdlm_detail_desc *detail = NULL; + + while (len > 3) { + if (buf [1] != USB_DT_CS_INTERFACE) + goto next_desc; + + /* use bDescriptorSubType, and just verify that we get a + * "BLAN" (or "SAFE") descriptor. + */ + switch (buf [2]) { + case USB_CDC_MDLM_TYPE: + if (desc) { + dev_dbg(&intf->dev, "extra MDLM\n"); + goto bad_desc; + } + desc = (void *) buf; + if (desc->bLength != sizeof *desc) { + dev_dbg(&intf->dev, "MDLM len %u\n", + desc->bLength); + goto bad_desc; + } + /* expect bcdVersion 1.0, ignore */ + if (memcmp(&desc->bGUID, blan_guid, 16) + && memcmp(&desc->bGUID, safe_guid, 16) ) { + /* hey, this one might _really_ be MDLM! */ + dev_dbg(&intf->dev, "MDLM guid\n"); + goto bad_desc; + } + break; + case USB_CDC_MDLM_DETAIL_TYPE: + if (detail) { + dev_dbg(&intf->dev, "extra MDLM detail\n"); + goto bad_desc; + } + detail = (void *) buf; + switch (detail->bGuidDescriptorType) { + case 0: /* "SAFE" */ + if (detail->bLength != (sizeof *detail + 2)) + goto bad_detail; + break; + case 1: /* "BLAN" */ + if (detail->bLength != (sizeof *detail + 3)) + goto bad_detail; + break; + default: + goto bad_detail; + } + + /* assuming we either noticed BLAN already, or will + * find it soon, there are some data bytes here: + * - bmNetworkCapabilities (unused) + * - bmDataCapabilities (bits, see below) + * - bPad (ignored, for PADAFTER -- BLAN-only) + * bits are: + * - 0x01 -- Zaurus framing (add CRC) + * - 0x02 -- PADBEFORE (CRC includes some padding) + * - 0x04 -- PADAFTER (some padding after CRC) + * - 0x08 -- "fermat" packet mangling (for hw bugs) + * the PADBEFORE appears not to matter; we interop + * with devices that use it and those that don't. + */ + if ((detail->bDetailData[1] & ~0x02) != 0x01) { + /* bmDataCapabilites == 0 would be fine too, + * but framing is minidriver-coupled for now. + */ +bad_detail: + dev_dbg(&intf->dev, + "bad MDLM detail, %d %d %d\n", + detail->bLength, + detail->bDetailData[0], + detail->bDetailData[2]); + goto bad_desc; + } + break; + } +next_desc: + len -= buf [0]; /* bLength */ + buf += buf [0]; + } + + if (!desc || !detail) { + dev_dbg(&intf->dev, "missing cdc mdlm %s%sdescriptor\n", + desc ? "" : "func ", + detail ? "" : "detail "); + goto bad_desc; + } + + /* There's probably a CDC Ethernet descriptor there, but we can't + * rely on the Ethernet address it provides since not all vendors + * bother to make it unique. Likewise there's no point in tracking + * of the CDC event notifications. + */ + return usbnet_get_endpoints(dev, intf); + +bad_desc: + dev_info(&dev->udev->dev, "unsupported MDLM descriptors\n"); + return -ENODEV; +} + +static const struct driver_info bogus_mdlm_info = { + .description = "pseudo-MDLM (BLAN) device", + .flags = FLAG_FRAMING_Z, + .check_connect = always_connected, + .tx_fixup = zaurus_tx_fixup, + .bind = blan_mdlm_bind, +}; + +static const struct usb_device_id products [] = { +#define ZAURUS_MASTER_INTERFACE \ + .bInterfaceClass = USB_CLASS_COMM, \ + .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET, \ + .bInterfaceProtocol = USB_CDC_PROTO_NONE + +/* SA-1100 based Sharp Zaurus ("collie"), or compatible. */ +{ + .match_flags = USB_DEVICE_ID_MATCH_INT_INFO + | USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = 0x04DD, + .idProduct = 0x8004, + ZAURUS_MASTER_INTERFACE, + .driver_info = ZAURUS_STRONGARM_INFO, +}, + +/* PXA-2xx based models are also lying-about-cdc. If you add any + * more devices that claim to be CDC Ethernet, make sure they get + * added to the blacklist in cdc_ether too. + * + * NOTE: OpenZaurus versions with 2.6 kernels won't use these entries, + * unlike the older ones with 2.4 "embedix" kernels. + */ +{ + .match_flags = USB_DEVICE_ID_MATCH_INT_INFO + | USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = 0x04DD, + .idProduct = 0x8005, /* A-300 */ + ZAURUS_MASTER_INTERFACE, + .driver_info = ZAURUS_PXA_INFO, +}, { + .match_flags = USB_DEVICE_ID_MATCH_INT_INFO + | USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = 0x04DD, + .idProduct = 0x8006, /* B-500/SL-5600 */ + ZAURUS_MASTER_INTERFACE, + .driver_info = ZAURUS_PXA_INFO, +}, { + .match_flags = USB_DEVICE_ID_MATCH_INT_INFO + | USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = 0x04DD, + .idProduct = 0x8007, /* C-700 */ + ZAURUS_MASTER_INTERFACE, + .driver_info = ZAURUS_PXA_INFO, +}, { + .match_flags = USB_DEVICE_ID_MATCH_INT_INFO + | USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = 0x04DD, + .idProduct = 0x9031, /* C-750 C-760 */ + ZAURUS_MASTER_INTERFACE, + .driver_info = ZAURUS_PXA_INFO, +}, { + .match_flags = USB_DEVICE_ID_MATCH_INT_INFO + | USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = 0x04DD, + .idProduct = 0x9032, /* SL-6000 */ + ZAURUS_MASTER_INTERFACE, + .driver_info = ZAURUS_PXA_INFO, +}, { + .match_flags = USB_DEVICE_ID_MATCH_INT_INFO + | USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = 0x04DD, + /* reported with some C860 units */ + .idProduct = 0x9050, /* C-860 */ + ZAURUS_MASTER_INTERFACE, + .driver_info = ZAURUS_PXA_INFO, +}, + + +/* At least some of the newest PXA units have very different lies about + * their standards support: they claim to be cell phones offering + * direct access to their radios! (No, they don't conform to CDC MDLM.) + */ +{ + USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_MDLM, + USB_CDC_PROTO_NONE), + .driver_info = (unsigned long) &bogus_mdlm_info, +}, + +/* Olympus has some models with a Zaurus-compatible option. + * R-1000 uses a FreeScale i.MXL cpu (ARMv4T) + */ +{ + .match_flags = USB_DEVICE_ID_MATCH_INT_INFO + | USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = 0x07B4, + .idProduct = 0x0F02, /* R-1000 */ + ZAURUS_MASTER_INTERFACE, + .driver_info = OLYMPUS_MXL_INFO, +}, + { }, // END +}; +MODULE_DEVICE_TABLE(usb, products); + +static struct usb_driver zaurus_driver = { + .owner = THIS_MODULE, + .name = "zaurus", + .id_table = products, + .probe = usbnet_probe, + .disconnect = usbnet_disconnect, + .suspend = usbnet_suspend, + .resume = usbnet_resume, +}; + +static int __init zaurus_init(void) +{ + return usb_register(&zaurus_driver); +} +module_init(zaurus_init); + +static void __exit zaurus_exit(void) +{ + usb_deregister(&zaurus_driver); +} +module_exit(zaurus_exit); + +MODULE_AUTHOR("Pavel Machek, David Brownell"); +MODULE_DESCRIPTION("Sharp Zaurus PDA, and compatible products"); +MODULE_LICENSE("GPL"); |