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-rw-r--r--drivers/usb/net/usbnet.c3226
1 files changed, 105 insertions, 3121 deletions
diff --git a/drivers/usb/net/usbnet.c b/drivers/usb/net/usbnet.c
index a2f67245f6da..6c460918d54f 100644
--- a/drivers/usb/net/usbnet.c
+++ b/drivers/usb/net/usbnet.c
@@ -1,10 +1,7 @@
1/* 1/*
2 * USB Networking Links 2 * USB Network driver infrastructure
3 * Copyright (C) 2000-2005 by David Brownell <dbrownell@users.sourceforge.net> 3 * Copyright (C) 2000-2005 by David Brownell
4 * Copyright (C) 2002 Pavel Machek <pavel@ucw.cz>
5 * Copyright (C) 2003-2005 David Hollis <dhollis@davehollis.com> 4 * Copyright (C) 2003-2005 David Hollis <dhollis@davehollis.com>
6 * Copyright (C) 2005 Phil Chang <pchang23@sbcglobal.net>
7 * Copyright (c) 2002-2003 TiVo Inc.
8 * 5 *
9 * This program is free software; you can redistribute it and/or modify 6 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by 7 * it under the terms of the GNU General Public License as published by
@@ -23,95 +20,15 @@
23 20
24/* 21/*
25 * This is a generic "USB networking" framework that works with several 22 * This is a generic "USB networking" framework that works with several
26 * kinds of full and high speed networking devices: 23 * kinds of full and high speed networking devices: host-to-host cables,
27 * 24 * smart usb peripherals, and actual Ethernet adapters.
28 * + USB host-to-host "network cables", used for IP-over-USB links. 25 *
29 * These are often used for Laplink style connectivity products. 26 * These devices usually differ in terms of control protocols (if they
30 * - AnchorChip 2720 27 * even have one!) and sometimes they define new framing to wrap or batch
31 * - Belkin, eTEK (interops with Win32 drivers) 28 * Ethernet packets. Otherwise, they talk to USB pretty much the same,
32 * - GeneSys GL620USB-A 29 * so interface (un)binding, endpoint I/O queues, fault handling, and other
33 * - NetChip 1080 (interoperates with NetChip Win32 drivers) 30 * issues can usefully be addressed by this framework.
34 * - Prolific PL-2301/2302 (replaces "plusb" driver) 31 */
35 * - KC Technology KC2190
36 *
37 * + Smart USB devices can support such links directly, using Internet
38 * standard protocols instead of proprietary host-to-device links.
39 * - Linux PDAs like iPaq, Yopy, and Zaurus
40 * - The BLOB boot loader (for diskless booting)
41 * - Linux "gadgets", perhaps using PXA-2xx or Net2280 controllers
42 * - Devices using EPSON's sample USB firmware
43 * - CDC-Ethernet class devices, such as many cable modems
44 *
45 * + Adapters to networks such as Ethernet.
46 * - AX8817X based USB 2.0 products
47 *
48 * Links to these devices can be bridged using Linux Ethernet bridging.
49 * With minor exceptions, these all use similar USB framing for network
50 * traffic, but need different protocols for control traffic.
51 *
52 * USB devices can implement their side of this protocol at the cost
53 * of two bulk endpoints; it's not restricted to "cable" applications.
54 * See the SA1110, Zaurus, or EPSON device/client support in this driver;
55 * slave/target drivers such as "usb-eth" (on most SA-1100 PDAs) or
56 * "g_ether" (in the Linux "gadget" framework) implement that behavior
57 * within devices.
58 *
59 *
60 * CHANGELOG:
61 *
62 * 13-sep-2000 experimental, new
63 * 10-oct-2000 usb_device_id table created.
64 * 28-oct-2000 misc fixes; mostly, discard more TTL-mangled rx packets.
65 * 01-nov-2000 usb_device_id table and probing api update by
66 * Adam J. Richter <adam@yggdrasil.com>.
67 * 18-dec-2000 (db) tx watchdog, "net1080" renaming to "usbnet", device_info
68 * and prolific support, isolate net1080-specific bits, cleanup.
69 * fix unlink_urbs oops in D3 PM resume code path.
70 *
71 * 02-feb-2001 (db) fix tx skb sharing, packet length, match_flags, ...
72 * 08-feb-2001 stubbed in "linuxdev", maybe the SA-1100 folk can use it;
73 * AnchorChips 2720 support (from spec) for testing;
74 * fix bit-ordering problem with ethernet multicast addr
75 * 19-feb-2001 Support for clearing halt conditions. SA1100 UDC support
76 * updates. Oleg Drokin (green@iXcelerator.com)
77 * 25-mar-2001 More SA-1100 updates, including workaround for ip problem
78 * expecting cleared skb->cb and framing change to match latest
79 * handhelds.org version (Oleg). Enable device IDs from the
80 * Win32 Belkin driver; other cleanups (db).
81 * 16-jul-2001 Bugfixes for uhci oops-on-unplug, Belkin support, various
82 * cleanups for problems not yet seen in the field. (db)
83 * 17-oct-2001 Handle "Advance USBNET" product, like Belkin/eTEK devices,
84 * from Ioannis Mavroukakis <i.mavroukakis@btinternet.com>;
85 * rx unlinks somehow weren't async; minor cleanup.
86 * 03-nov-2001 Merged GeneSys driver; original code from Jiun-Jie Huang
87 * <huangjj@genesyslogic.com.tw>, updated by Stanislav Brabec
88 * <utx@penguin.cz>. Made framing options (NetChip/GeneSys)
89 * tie mostly to (sub)driver info. Workaround some PL-2302
90 * chips that seem to reject SET_INTERFACE requests.
91 *
92 * 06-apr-2002 Added ethtool support, based on a patch from Brad Hards.
93 * Level of diagnostics is more configurable; they use device
94 * location (usb_device->devpath) instead of address (2.5).
95 * For tx_fixup, memflags can't be NOIO.
96 * 07-may-2002 Generalize/cleanup keventd support, handling rx stalls (mostly
97 * for USB 2.0 TTs) and memory shortages (potential) too. (db)
98 * Use "locally assigned" IEEE802 address space. (Brad Hards)
99 * 18-oct-2002 Support for Zaurus (Pavel Machek), related cleanup (db).
100 * 14-dec-2002 Remove Zaurus-private crc32 code (Pavel); 2.5 oops fix,
101 * cleanups and stubbed PXA-250 support (db), fix for framing
102 * issues on Z, net1080, and gl620a (Toby Milne)
103 *
104 * 31-mar-2003 Use endpoint descriptors: high speed support, simpler sa1100
105 * vs pxa25x, and CDC Ethernet. Throttle down log floods on
106 * disconnect; other cleanups. (db) Flush net1080 fifos
107 * after several sequential framing errors. (Johannes Erdfelt)
108 * 22-aug-2003 AX8817X support (Dave Hollis).
109 * 14-jun-2004 Trivial patch for AX8817X based Buffalo LUA-U2-KTX in Japan
110 * (Neil Bortnak)
111 * 03-nov-2004 Trivial patch for KC2190 (KC-190) chip. (Jonathan McDowell)
112 *
113 * 01-feb-2005 AX88772 support (Phil Chang & Dave Hollis)
114 *-------------------------------------------------------------------------*/
115 32
116// #define DEBUG // error path messages, extra info 33// #define DEBUG // error path messages, extra info
117// #define VERBOSE // more; success messages 34// #define VERBOSE // more; success messages
@@ -121,24 +38,18 @@
121# define DEBUG 38# define DEBUG
122#endif 39#endif
123#include <linux/module.h> 40#include <linux/module.h>
124#include <linux/kmod.h>
125#include <linux/sched.h> 41#include <linux/sched.h>
126#include <linux/init.h> 42#include <linux/init.h>
127#include <linux/netdevice.h> 43#include <linux/netdevice.h>
128#include <linux/etherdevice.h> 44#include <linux/etherdevice.h>
129#include <linux/random.h>
130#include <linux/ethtool.h> 45#include <linux/ethtool.h>
131#include <linux/workqueue.h> 46#include <linux/workqueue.h>
132#include <linux/mii.h> 47#include <linux/mii.h>
133#include <asm/uaccess.h>
134#include <asm/unaligned.h>
135#include <linux/usb.h> 48#include <linux/usb.h>
136#include <asm/io.h>
137#include <asm/scatterlist.h>
138#include <linux/mm.h>
139#include <linux/dma-mapping.h>
140 49
141#define DRIVER_VERSION "03-Nov-2004" 50#include "usbnet.h"
51
52#define DRIVER_VERSION "22-Aug-2005"
142 53
143 54
144/*-------------------------------------------------------------------------*/ 55/*-------------------------------------------------------------------------*/
@@ -149,15 +60,14 @@
149 * One maximum size Ethernet packet takes twenty four of them. 60 * One maximum size Ethernet packet takes twenty four of them.
150 * For high speed, each frame comfortably fits almost 36 max size 61 * For high speed, each frame comfortably fits almost 36 max size
151 * Ethernet packets (so queues should be bigger). 62 * Ethernet packets (so queues should be bigger).
63 *
64 * REVISIT qlens should be members of 'struct usbnet'; the goal is to
65 * let the USB host controller be busy for 5msec or more before an irq
66 * is required, under load. Jumbograms change the equation.
152 */ 67 */
153#define RX_QLEN(dev) (((dev)->udev->speed == USB_SPEED_HIGH) ? 60 : 4) 68#define RX_QLEN(dev) (((dev)->udev->speed == USB_SPEED_HIGH) ? 60 : 4)
154#define TX_QLEN(dev) (((dev)->udev->speed == USB_SPEED_HIGH) ? 60 : 4) 69#define TX_QLEN(dev) (((dev)->udev->speed == USB_SPEED_HIGH) ? 60 : 4)
155 70
156// packets are always ethernet inside
157// ... except they can be bigger (limit of 64K with NetChip framing)
158#define MIN_PACKET sizeof(struct ethhdr)
159#define MAX_PACKET 32768
160
161// reawaken network queue this soon after stopping; else watchdog barks 71// reawaken network queue this soon after stopping; else watchdog barks
162#define TX_TIMEOUT_JIFFIES (5*HZ) 72#define TX_TIMEOUT_JIFFIES (5*HZ)
163 73
@@ -165,9 +75,6 @@
165// us (it polls at HZ/4 usually) before we report too many false errors. 75// us (it polls at HZ/4 usually) before we report too many false errors.
166#define THROTTLE_JIFFIES (HZ/8) 76#define THROTTLE_JIFFIES (HZ/8)
167 77
168// for vendor-specific control operations
169#define CONTROL_TIMEOUT_MS 500
170
171// between wakeups 78// between wakeups
172#define UNLINK_TIMEOUT_MS 3 79#define UNLINK_TIMEOUT_MS 3
173 80
@@ -176,109 +83,6 @@
176// randomly generated ethernet address 83// randomly generated ethernet address
177static u8 node_id [ETH_ALEN]; 84static u8 node_id [ETH_ALEN];
178 85
179// state we keep for each device we handle
180struct usbnet {
181 // housekeeping
182 struct usb_device *udev;
183 struct driver_info *driver_info;
184 wait_queue_head_t *wait;
185
186 // i/o info: pipes etc
187 unsigned in, out;
188 struct usb_host_endpoint *status;
189 unsigned maxpacket;
190 struct timer_list delay;
191
192 // protocol/interface state
193 struct net_device *net;
194 struct net_device_stats stats;
195 int msg_enable;
196 unsigned long data [5];
197
198 struct mii_if_info mii;
199
200 // various kinds of pending driver work
201 struct sk_buff_head rxq;
202 struct sk_buff_head txq;
203 struct sk_buff_head done;
204 struct urb *interrupt;
205 struct tasklet_struct bh;
206
207 struct work_struct kevent;
208 unsigned long flags;
209# define EVENT_TX_HALT 0
210# define EVENT_RX_HALT 1
211# define EVENT_RX_MEMORY 2
212# define EVENT_STS_SPLIT 3
213# define EVENT_LINK_RESET 4
214};
215
216// device-specific info used by the driver
217struct driver_info {
218 char *description;
219
220 int flags;
221/* framing is CDC Ethernet, not writing ZLPs (hw issues), or optionally: */
222#define FLAG_FRAMING_NC 0x0001 /* guard against device dropouts */
223#define FLAG_FRAMING_GL 0x0002 /* genelink batches packets */
224#define FLAG_FRAMING_Z 0x0004 /* zaurus adds a trailer */
225#define FLAG_FRAMING_RN 0x0008 /* RNDIS batches, plus huge header */
226
227#define FLAG_NO_SETINT 0x0010 /* device can't set_interface() */
228#define FLAG_ETHER 0x0020 /* maybe use "eth%d" names */
229
230#define FLAG_FRAMING_AX 0x0040 /* AX88772/178 packets */
231
232 /* init device ... can sleep, or cause probe() failure */
233 int (*bind)(struct usbnet *, struct usb_interface *);
234
235 /* cleanup device ... can sleep, but can't fail */
236 void (*unbind)(struct usbnet *, struct usb_interface *);
237
238 /* reset device ... can sleep */
239 int (*reset)(struct usbnet *);
240
241 /* see if peer is connected ... can sleep */
242 int (*check_connect)(struct usbnet *);
243
244 /* for status polling */
245 void (*status)(struct usbnet *, struct urb *);
246
247 /* link reset handling, called from defer_kevent */
248 int (*link_reset)(struct usbnet *);
249
250 /* fixup rx packet (strip framing) */
251 int (*rx_fixup)(struct usbnet *dev, struct sk_buff *skb);
252
253 /* fixup tx packet (add framing) */
254 struct sk_buff *(*tx_fixup)(struct usbnet *dev,
255 struct sk_buff *skb, int flags);
256
257 // FIXME -- also an interrupt mechanism
258 // useful for at least PL2301/2302 and GL620USB-A
259 // and CDC use them to report 'is it connected' changes
260
261 /* for new devices, use the descriptor-reading code instead */
262 int in; /* rx endpoint */
263 int out; /* tx endpoint */
264
265 unsigned long data; /* Misc driver specific data */
266};
267
268// we record the state for each of our queued skbs
269enum skb_state {
270 illegal = 0,
271 tx_start, tx_done,
272 rx_start, rx_done, rx_cleanup
273};
274
275struct skb_data { // skb->cb is one of these
276 struct urb *urb;
277 struct usbnet *dev;
278 enum skb_state state;
279 size_t length;
280};
281
282static const char driver_name [] = "usbnet"; 86static const char driver_name [] = "usbnet";
283 87
284/* use ethtool to change the level for any given device */ 88/* use ethtool to change the level for any given device */
@@ -286,39 +90,10 @@ static int msg_level = -1;
286module_param (msg_level, int, 0); 90module_param (msg_level, int, 0);
287MODULE_PARM_DESC (msg_level, "Override default message level"); 91MODULE_PARM_DESC (msg_level, "Override default message level");
288 92
289
290#ifdef DEBUG
291#define devdbg(usbnet, fmt, arg...) \
292 printk(KERN_DEBUG "%s: " fmt "\n" , (usbnet)->net->name , ## arg)
293#else
294#define devdbg(usbnet, fmt, arg...) do {} while(0)
295#endif
296
297#define deverr(usbnet, fmt, arg...) \
298 printk(KERN_ERR "%s: " fmt "\n" , (usbnet)->net->name , ## arg)
299#define devwarn(usbnet, fmt, arg...) \
300 printk(KERN_WARNING "%s: " fmt "\n" , (usbnet)->net->name , ## arg)
301
302#define devinfo(usbnet, fmt, arg...) \
303 printk(KERN_INFO "%s: " fmt "\n" , (usbnet)->net->name , ## arg); \
304
305/*-------------------------------------------------------------------------*/ 93/*-------------------------------------------------------------------------*/
306 94
307static void usbnet_get_drvinfo (struct net_device *, struct ethtool_drvinfo *);
308static u32 usbnet_get_link (struct net_device *);
309static u32 usbnet_get_msglevel (struct net_device *);
310static void usbnet_set_msglevel (struct net_device *, u32);
311static void defer_kevent (struct usbnet *, int);
312
313/* mostly for PDA style devices, which are always connected if present */
314static int always_connected (struct usbnet *dev)
315{
316 return 0;
317}
318
319/* handles CDC Ethernet and many other network "bulk data" interfaces */ 95/* handles CDC Ethernet and many other network "bulk data" interfaces */
320static int 96int usbnet_get_endpoints(struct usbnet *dev, struct usb_interface *intf)
321get_endpoints (struct usbnet *dev, struct usb_interface *intf)
322{ 97{
323 int tmp; 98 int tmp;
324 struct usb_host_interface *alt = NULL; 99 struct usb_host_interface *alt = NULL;
@@ -382,6 +157,7 @@ get_endpoints (struct usbnet *dev, struct usb_interface *intf)
382 dev->status = status; 157 dev->status = status;
383 return 0; 158 return 0;
384} 159}
160EXPORT_SYMBOL_GPL(usbnet_get_endpoints);
385 161
386static void intr_complete (struct urb *urb, struct pt_regs *regs); 162static void intr_complete (struct urb *urb, struct pt_regs *regs);
387 163
@@ -421,7 +197,11 @@ static int init_status (struct usbnet *dev, struct usb_interface *intf)
421 return 0; 197 return 0;
422} 198}
423 199
424static void skb_return (struct usbnet *dev, struct sk_buff *skb) 200/* Passes this packet up the stack, updating its accounting.
201 * Some link protocols batch packets, so their rx_fixup paths
202 * can return clones as well as just modify the original skb.
203 */
204void usbnet_skb_return (struct usbnet *dev, struct sk_buff *skb)
425{ 205{
426 int status; 206 int status;
427 207
@@ -438,2425 +218,7 @@ static void skb_return (struct usbnet *dev, struct sk_buff *skb)
438 if (status != NET_RX_SUCCESS && netif_msg_rx_err (dev)) 218 if (status != NET_RX_SUCCESS && netif_msg_rx_err (dev))
439 devdbg (dev, "netif_rx status %d", status); 219 devdbg (dev, "netif_rx status %d", status);
440} 220}
441 221EXPORT_SYMBOL_GPL(usbnet_skb_return);
442
443#ifdef CONFIG_USB_ALI_M5632
444#define HAVE_HARDWARE
445
446/*-------------------------------------------------------------------------
447 *
448 * ALi M5632 driver ... does high speed
449 *
450 *-------------------------------------------------------------------------*/
451
452static const struct driver_info ali_m5632_info = {
453 .description = "ALi M5632",
454};
455
456
457#endif
458
459
460#ifdef CONFIG_USB_AN2720
461#define HAVE_HARDWARE
462
463/*-------------------------------------------------------------------------
464 *
465 * AnchorChips 2720 driver ... http://www.cypress.com
466 *
467 * This doesn't seem to have a way to detect whether the peer is
468 * connected, or need any reset handshaking. It's got pretty big
469 * internal buffers (handles most of a frame's worth of data).
470 * Chip data sheets don't describe any vendor control messages.
471 *
472 *-------------------------------------------------------------------------*/
473
474static const struct driver_info an2720_info = {
475 .description = "AnchorChips/Cypress 2720",
476 // no reset available!
477 // no check_connect available!
478
479 .in = 2, .out = 2, // direction distinguishes these
480};
481
482#endif /* CONFIG_USB_AN2720 */
483
484
485#ifdef CONFIG_USB_AX8817X
486/* ASIX AX8817X based USB 2.0 Ethernet Devices */
487
488#define HAVE_HARDWARE
489#define NEED_MII
490
491#include <linux/crc32.h>
492
493#define AX_CMD_SET_SW_MII 0x06
494#define AX_CMD_READ_MII_REG 0x07
495#define AX_CMD_WRITE_MII_REG 0x08
496#define AX_CMD_SET_HW_MII 0x0a
497#define AX_CMD_READ_EEPROM 0x0b
498#define AX_CMD_WRITE_EEPROM 0x0c
499#define AX_CMD_WRITE_ENABLE 0x0d
500#define AX_CMD_WRITE_DISABLE 0x0e
501#define AX_CMD_WRITE_RX_CTL 0x10
502#define AX_CMD_READ_IPG012 0x11
503#define AX_CMD_WRITE_IPG0 0x12
504#define AX_CMD_WRITE_IPG1 0x13
505#define AX_CMD_WRITE_IPG2 0x14
506#define AX_CMD_WRITE_MULTI_FILTER 0x16
507#define AX_CMD_READ_NODE_ID 0x17
508#define AX_CMD_READ_PHY_ID 0x19
509#define AX_CMD_READ_MEDIUM_STATUS 0x1a
510#define AX_CMD_WRITE_MEDIUM_MODE 0x1b
511#define AX_CMD_READ_MONITOR_MODE 0x1c
512#define AX_CMD_WRITE_MONITOR_MODE 0x1d
513#define AX_CMD_WRITE_GPIOS 0x1f
514#define AX_CMD_SW_RESET 0x20
515#define AX_CMD_SW_PHY_STATUS 0x21
516#define AX_CMD_SW_PHY_SELECT 0x22
517#define AX88772_CMD_READ_NODE_ID 0x13
518
519#define AX_MONITOR_MODE 0x01
520#define AX_MONITOR_LINK 0x02
521#define AX_MONITOR_MAGIC 0x04
522#define AX_MONITOR_HSFS 0x10
523
524/* AX88172 Medium Status Register values */
525#define AX_MEDIUM_FULL_DUPLEX 0x02
526#define AX_MEDIUM_TX_ABORT_ALLOW 0x04
527#define AX_MEDIUM_FLOW_CONTROL_EN 0x10
528
529#define AX_MCAST_FILTER_SIZE 8
530#define AX_MAX_MCAST 64
531
532#define AX_EEPROM_LEN 0x40
533
534#define AX_SWRESET_CLEAR 0x00
535#define AX_SWRESET_RR 0x01
536#define AX_SWRESET_RT 0x02
537#define AX_SWRESET_PRTE 0x04
538#define AX_SWRESET_PRL 0x08
539#define AX_SWRESET_BZ 0x10
540#define AX_SWRESET_IPRL 0x20
541#define AX_SWRESET_IPPD 0x40
542
543#define AX88772_IPG0_DEFAULT 0x15
544#define AX88772_IPG1_DEFAULT 0x0c
545#define AX88772_IPG2_DEFAULT 0x12
546
547#define AX88772_MEDIUM_FULL_DUPLEX 0x0002
548#define AX88772_MEDIUM_RESERVED 0x0004
549#define AX88772_MEDIUM_RX_FC_ENABLE 0x0010
550#define AX88772_MEDIUM_TX_FC_ENABLE 0x0020
551#define AX88772_MEDIUM_PAUSE_FORMAT 0x0080
552#define AX88772_MEDIUM_RX_ENABLE 0x0100
553#define AX88772_MEDIUM_100MB 0x0200
554#define AX88772_MEDIUM_DEFAULT \
555 (AX88772_MEDIUM_FULL_DUPLEX | AX88772_MEDIUM_RX_FC_ENABLE | \
556 AX88772_MEDIUM_TX_FC_ENABLE | AX88772_MEDIUM_100MB | \
557 AX88772_MEDIUM_RESERVED | AX88772_MEDIUM_RX_ENABLE )
558
559#define AX_EEPROM_MAGIC 0xdeadbeef
560
561/* This structure cannot exceed sizeof(unsigned long [5]) AKA 20 bytes */
562struct ax8817x_data {
563 u8 multi_filter[AX_MCAST_FILTER_SIZE];
564};
565
566struct ax88172_int_data {
567 u16 res1;
568 u8 link;
569 u16 res2;
570 u8 status;
571 u16 res3;
572} __attribute__ ((packed));
573
574static int ax8817x_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
575 u16 size, void *data)
576{
577 return usb_control_msg(
578 dev->udev,
579 usb_rcvctrlpipe(dev->udev, 0),
580 cmd,
581 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
582 value,
583 index,
584 data,
585 size,
586 CONTROL_TIMEOUT_MS);
587}
588
589static int ax8817x_write_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
590 u16 size, void *data)
591{
592 return usb_control_msg(
593 dev->udev,
594 usb_sndctrlpipe(dev->udev, 0),
595 cmd,
596 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
597 value,
598 index,
599 data,
600 size,
601 CONTROL_TIMEOUT_MS);
602}
603
604static void ax8817x_async_cmd_callback(struct urb *urb, struct pt_regs *regs)
605{
606 struct usb_ctrlrequest *req = (struct usb_ctrlrequest *)urb->context;
607
608 if (urb->status < 0)
609 printk(KERN_DEBUG "ax8817x_async_cmd_callback() failed with %d",
610 urb->status);
611
612 kfree(req);
613 usb_free_urb(urb);
614}
615
616static void ax8817x_status(struct usbnet *dev, struct urb *urb)
617{
618 struct ax88172_int_data *event;
619 int link;
620
621 if (urb->actual_length < 8)
622 return;
623
624 event = urb->transfer_buffer;
625 link = event->link & 0x01;
626 if (netif_carrier_ok(dev->net) != link) {
627 if (link) {
628 netif_carrier_on(dev->net);
629 defer_kevent (dev, EVENT_LINK_RESET );
630 } else
631 netif_carrier_off(dev->net);
632 devdbg(dev, "ax8817x - Link Status is: %d", link);
633 }
634}
635
636static void ax8817x_write_cmd_async(struct usbnet *dev, u8 cmd, u16 value, u16 index,
637 u16 size, void *data)
638{
639 struct usb_ctrlrequest *req;
640 int status;
641 struct urb *urb;
642
643 if ((urb = usb_alloc_urb(0, GFP_ATOMIC)) == NULL) {
644 devdbg(dev, "Error allocating URB in write_cmd_async!");
645 return;
646 }
647
648 if ((req = kmalloc(sizeof(struct usb_ctrlrequest), GFP_ATOMIC)) == NULL) {
649 deverr(dev, "Failed to allocate memory for control request");
650 usb_free_urb(urb);
651 return;
652 }
653
654 req->bRequestType = USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE;
655 req->bRequest = cmd;
656 req->wValue = cpu_to_le16(value);
657 req->wIndex = cpu_to_le16(index);
658 req->wLength = cpu_to_le16(size);
659
660 usb_fill_control_urb(urb, dev->udev,
661 usb_sndctrlpipe(dev->udev, 0),
662 (void *)req, data, size,
663 ax8817x_async_cmd_callback, req);
664
665 if((status = usb_submit_urb(urb, GFP_ATOMIC)) < 0) {
666 deverr(dev, "Error submitting the control message: status=%d", status);
667 kfree(req);
668 usb_free_urb(urb);
669 }
670}
671
672static void ax8817x_set_multicast(struct net_device *net)
673{
674 struct usbnet *dev = netdev_priv(net);
675 struct ax8817x_data *data = (struct ax8817x_data *)&dev->data;
676 u8 rx_ctl = 0x8c;
677
678 if (net->flags & IFF_PROMISC) {
679 rx_ctl |= 0x01;
680 } else if (net->flags & IFF_ALLMULTI
681 || net->mc_count > AX_MAX_MCAST) {
682 rx_ctl |= 0x02;
683 } else if (net->mc_count == 0) {
684 /* just broadcast and directed */
685 } else {
686 /* We use the 20 byte dev->data
687 * for our 8 byte filter buffer
688 * to avoid allocating memory that
689 * is tricky to free later */
690 struct dev_mc_list *mc_list = net->mc_list;
691 u32 crc_bits;
692 int i;
693
694 memset(data->multi_filter, 0, AX_MCAST_FILTER_SIZE);
695
696 /* Build the multicast hash filter. */
697 for (i = 0; i < net->mc_count; i++) {
698 crc_bits =
699 ether_crc(ETH_ALEN,
700 mc_list->dmi_addr) >> 26;
701 data->multi_filter[crc_bits >> 3] |=
702 1 << (crc_bits & 7);
703 mc_list = mc_list->next;
704 }
705
706 ax8817x_write_cmd_async(dev, AX_CMD_WRITE_MULTI_FILTER, 0, 0,
707 AX_MCAST_FILTER_SIZE, data->multi_filter);
708
709 rx_ctl |= 0x10;
710 }
711
712 ax8817x_write_cmd_async(dev, AX_CMD_WRITE_RX_CTL, rx_ctl, 0, 0, NULL);
713}
714
715static int ax8817x_mdio_read(struct net_device *netdev, int phy_id, int loc)
716{
717 struct usbnet *dev = netdev_priv(netdev);
718 u16 res;
719 u8 buf[1];
720
721 ax8817x_write_cmd(dev, AX_CMD_SET_SW_MII, 0, 0, 0, &buf);
722 ax8817x_read_cmd(dev, AX_CMD_READ_MII_REG, phy_id, (__u16)loc, 2, (u16 *)&res);
723 ax8817x_write_cmd(dev, AX_CMD_SET_HW_MII, 0, 0, 0, &buf);
724
725 return res & 0xffff;
726}
727
728static void ax8817x_mdio_write(struct net_device *netdev, int phy_id, int loc, int val)
729{
730 struct usbnet *dev = netdev_priv(netdev);
731 u16 res = val;
732 u8 buf[1];
733
734 ax8817x_write_cmd(dev, AX_CMD_SET_SW_MII, 0, 0, 0, &buf);
735 ax8817x_write_cmd(dev, AX_CMD_WRITE_MII_REG, phy_id, (__u16)loc, 2, (u16 *)&res);
736 ax8817x_write_cmd(dev, AX_CMD_SET_HW_MII, 0, 0, 0, &buf);
737}
738
739static int ax88172_link_reset(struct usbnet *dev)
740{
741 u16 lpa;
742 u8 mode;
743
744 mode = AX_MEDIUM_TX_ABORT_ALLOW | AX_MEDIUM_FLOW_CONTROL_EN;
745 lpa = ax8817x_mdio_read(dev->net, dev->mii.phy_id, MII_LPA);
746 if (lpa & LPA_DUPLEX)
747 mode |= AX_MEDIUM_FULL_DUPLEX;
748 ax8817x_write_cmd(dev, AX_CMD_WRITE_MEDIUM_MODE, mode, 0, 0, NULL);
749
750 return 0;
751}
752
753static void ax8817x_get_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo)
754{
755 struct usbnet *dev = netdev_priv(net);
756 u8 opt;
757
758 if (ax8817x_read_cmd(dev, AX_CMD_READ_MONITOR_MODE, 0, 0, 1, &opt) < 0) {
759 wolinfo->supported = 0;
760 wolinfo->wolopts = 0;
761 return;
762 }
763 wolinfo->supported = WAKE_PHY | WAKE_MAGIC;
764 wolinfo->wolopts = 0;
765 if (opt & AX_MONITOR_MODE) {
766 if (opt & AX_MONITOR_LINK)
767 wolinfo->wolopts |= WAKE_PHY;
768 if (opt & AX_MONITOR_MAGIC)
769 wolinfo->wolopts |= WAKE_MAGIC;
770 }
771}
772
773static int ax8817x_set_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo)
774{
775 struct usbnet *dev = netdev_priv(net);
776 u8 opt = 0;
777 u8 buf[1];
778
779 if (wolinfo->wolopts & WAKE_PHY)
780 opt |= AX_MONITOR_LINK;
781 if (wolinfo->wolopts & WAKE_MAGIC)
782 opt |= AX_MONITOR_MAGIC;
783 if (opt != 0)
784 opt |= AX_MONITOR_MODE;
785
786 if (ax8817x_write_cmd(dev, AX_CMD_WRITE_MONITOR_MODE,
787 opt, 0, 0, &buf) < 0)
788 return -EINVAL;
789
790 return 0;
791}
792
793static int ax8817x_get_eeprom_len(struct net_device *net)
794{
795 return AX_EEPROM_LEN;
796}
797
798static int ax8817x_get_eeprom(struct net_device *net,
799 struct ethtool_eeprom *eeprom, u8 *data)
800{
801 struct usbnet *dev = netdev_priv(net);
802 u16 *ebuf = (u16 *)data;
803 int i;
804
805 /* Crude hack to ensure that we don't overwrite memory
806 * if an odd length is supplied
807 */
808 if (eeprom->len % 2)
809 return -EINVAL;
810
811 eeprom->magic = AX_EEPROM_MAGIC;
812
813 /* ax8817x returns 2 bytes from eeprom on read */
814 for (i=0; i < eeprom->len / 2; i++) {
815 if (ax8817x_read_cmd(dev, AX_CMD_READ_EEPROM,
816 eeprom->offset + i, 0, 2, &ebuf[i]) < 0)
817 return -EINVAL;
818 }
819 return 0;
820}
821
822static void ax8817x_get_drvinfo (struct net_device *net,
823 struct ethtool_drvinfo *info)
824{
825 /* Inherit standard device info */
826 usbnet_get_drvinfo(net, info);
827 info->eedump_len = 0x3e;
828}
829
830static int ax8817x_get_settings(struct net_device *net, struct ethtool_cmd *cmd)
831{
832 struct usbnet *dev = netdev_priv(net);
833
834 return mii_ethtool_gset(&dev->mii,cmd);
835}
836
837static int ax8817x_set_settings(struct net_device *net, struct ethtool_cmd *cmd)
838{
839 struct usbnet *dev = netdev_priv(net);
840
841 return mii_ethtool_sset(&dev->mii,cmd);
842}
843
844/* We need to override some ethtool_ops so we require our
845 own structure so we don't interfere with other usbnet
846 devices that may be connected at the same time. */
847static struct ethtool_ops ax8817x_ethtool_ops = {
848 .get_drvinfo = ax8817x_get_drvinfo,
849 .get_link = ethtool_op_get_link,
850 .get_msglevel = usbnet_get_msglevel,
851 .set_msglevel = usbnet_set_msglevel,
852 .get_wol = ax8817x_get_wol,
853 .set_wol = ax8817x_set_wol,
854 .get_eeprom_len = ax8817x_get_eeprom_len,
855 .get_eeprom = ax8817x_get_eeprom,
856 .get_settings = ax8817x_get_settings,
857 .set_settings = ax8817x_set_settings,
858};
859
860static int ax8817x_bind(struct usbnet *dev, struct usb_interface *intf)
861{
862 int ret = 0;
863 void *buf;
864 int i;
865 unsigned long gpio_bits = dev->driver_info->data;
866
867 get_endpoints(dev,intf);
868
869 buf = kmalloc(ETH_ALEN, GFP_KERNEL);
870 if(!buf) {
871 ret = -ENOMEM;
872 goto out1;
873 }
874
875 /* Toggle the GPIOs in a manufacturer/model specific way */
876 for (i = 2; i >= 0; i--) {
877 if ((ret = ax8817x_write_cmd(dev, AX_CMD_WRITE_GPIOS,
878 (gpio_bits >> (i * 8)) & 0xff, 0, 0,
879 buf)) < 0)
880 goto out2;
881 msleep(5);
882 }
883
884 if ((ret = ax8817x_write_cmd(dev, AX_CMD_WRITE_RX_CTL, 0x80, 0, 0, buf)) < 0) {
885 dbg("send AX_CMD_WRITE_RX_CTL failed: %d", ret);
886 goto out2;
887 }
888
889 /* Get the MAC address */
890 memset(buf, 0, ETH_ALEN);
891 if ((ret = ax8817x_read_cmd(dev, AX_CMD_READ_NODE_ID, 0, 0, 6, buf)) < 0) {
892 dbg("read AX_CMD_READ_NODE_ID failed: %d", ret);
893 goto out2;
894 }
895 memcpy(dev->net->dev_addr, buf, ETH_ALEN);
896
897 /* Get the PHY id */
898 if ((ret = ax8817x_read_cmd(dev, AX_CMD_READ_PHY_ID, 0, 0, 2, buf)) < 0) {
899 dbg("error on read AX_CMD_READ_PHY_ID: %02x", ret);
900 goto out2;
901 } else if (ret < 2) {
902 /* this should always return 2 bytes */
903 dbg("AX_CMD_READ_PHY_ID returned less than 2 bytes: ret=%02x", ret);
904 ret = -EIO;
905 goto out2;
906 }
907
908 /* Initialize MII structure */
909 dev->mii.dev = dev->net;
910 dev->mii.mdio_read = ax8817x_mdio_read;
911 dev->mii.mdio_write = ax8817x_mdio_write;
912 dev->mii.phy_id_mask = 0x3f;
913 dev->mii.reg_num_mask = 0x1f;
914 dev->mii.phy_id = *((u8 *)buf + 1);
915
916 dev->net->set_multicast_list = ax8817x_set_multicast;
917 dev->net->ethtool_ops = &ax8817x_ethtool_ops;
918
919 ax8817x_mdio_write(dev->net, dev->mii.phy_id, MII_BMCR, BMCR_RESET);
920 ax8817x_mdio_write(dev->net, dev->mii.phy_id, MII_ADVERTISE,
921 ADVERTISE_ALL | ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP);
922 mii_nway_restart(&dev->mii);
923
924 return 0;
925out2:
926 kfree(buf);
927out1:
928 return ret;
929}
930
931static struct ethtool_ops ax88772_ethtool_ops = {
932 .get_drvinfo = ax8817x_get_drvinfo,
933 .get_link = ethtool_op_get_link,
934 .get_msglevel = usbnet_get_msglevel,
935 .set_msglevel = usbnet_set_msglevel,
936 .get_wol = ax8817x_get_wol,
937 .set_wol = ax8817x_set_wol,
938 .get_eeprom_len = ax8817x_get_eeprom_len,
939 .get_eeprom = ax8817x_get_eeprom,
940 .get_settings = ax8817x_get_settings,
941 .set_settings = ax8817x_set_settings,
942};
943
944static int ax88772_bind(struct usbnet *dev, struct usb_interface *intf)
945{
946 int ret;
947 void *buf;
948
949 get_endpoints(dev,intf);
950
951 buf = kmalloc(6, GFP_KERNEL);
952 if(!buf) {
953 dbg ("Cannot allocate memory for buffer");
954 ret = -ENOMEM;
955 goto out1;
956 }
957
958 if ((ret = ax8817x_write_cmd(dev, AX_CMD_WRITE_GPIOS,
959 0x00B0, 0, 0, buf)) < 0)
960 goto out2;
961
962 msleep(5);
963 if ((ret = ax8817x_write_cmd(dev, AX_CMD_SW_PHY_SELECT, 0x0001, 0, 0, buf)) < 0) {
964 dbg("Select PHY #1 failed: %d", ret);
965 goto out2;
966 }
967
968 if ((ret =
969 ax8817x_write_cmd(dev, AX_CMD_SW_RESET, AX_SWRESET_IPPD, 0, 0, buf)) < 0) {
970 dbg("Failed to power down internal PHY: %d", ret);
971 goto out2;
972 }
973
974 msleep(150);
975 if ((ret =
976 ax8817x_write_cmd(dev, AX_CMD_SW_RESET, AX_SWRESET_CLEAR, 0, 0, buf)) < 0) {
977 dbg("Failed to perform software reset: %d", ret);
978 goto out2;
979 }
980
981 msleep(150);
982 if ((ret =
983 ax8817x_write_cmd(dev, AX_CMD_SW_RESET, AX_SWRESET_IPRL | AX_SWRESET_PRL, 0, 0, buf)) < 0) {
984 dbg("Failed to set Internal/External PHY reset control: %d", ret);
985 goto out2;
986 }
987
988 msleep(150);
989 if ((ret =
990 ax8817x_write_cmd(dev, AX_CMD_WRITE_RX_CTL, 0x0000, 0, 0,
991 buf)) < 0) {
992 dbg("Failed to reset RX_CTL: %d", ret);
993 goto out2;
994 }
995
996 /* Get the MAC address */
997 memset(buf, 0, ETH_ALEN);
998 if ((ret = ax8817x_read_cmd(dev, AX88772_CMD_READ_NODE_ID, 0, 0, ETH_ALEN, buf)) < 0) {
999 dbg("Failed to read MAC address: %d", ret);
1000 goto out2;
1001 }
1002 memcpy(dev->net->dev_addr, buf, ETH_ALEN);
1003
1004 if ((ret = ax8817x_write_cmd(dev, AX_CMD_SET_SW_MII, 0, 0, 0, buf)) < 0) {
1005 dbg("Enabling software MII failed: %d", ret);
1006 goto out2;
1007 }
1008
1009 if (((ret =
1010 ax8817x_read_cmd(dev, AX_CMD_READ_MII_REG, 0x0010, 2, 2, buf)) < 0)
1011 || (*((u16 *)buf) != 0x003b)) {
1012 dbg("Read PHY register 2 must be 0x3b00: %d", ret);
1013 goto out2;
1014 }
1015
1016 /* Initialize MII structure */
1017 dev->mii.dev = dev->net;
1018 dev->mii.mdio_read = ax8817x_mdio_read;
1019 dev->mii.mdio_write = ax8817x_mdio_write;
1020 dev->mii.phy_id_mask = 0xff;
1021 dev->mii.reg_num_mask = 0xff;
1022
1023 /* Get the PHY id */
1024 if ((ret = ax8817x_read_cmd(dev, AX_CMD_READ_PHY_ID, 0, 0, 2, buf)) < 0) {
1025 dbg("Error reading PHY ID: %02x", ret);
1026 goto out2;
1027 } else if (ret < 2) {
1028 /* this should always return 2 bytes */
1029 dbg("AX_CMD_READ_PHY_ID returned less than 2 bytes: ret=%02x",
1030 ret);
1031 ret = -EIO;
1032 goto out2;
1033 }
1034 dev->mii.phy_id = *((u8 *)buf + 1);
1035
1036 if ((ret =
1037 ax8817x_write_cmd(dev, AX_CMD_SW_RESET, AX_SWRESET_PRL, 0, 0, buf)) < 0) {
1038 dbg("Set external PHY reset pin level: %d", ret);
1039 goto out2;
1040 }
1041 msleep(150);
1042 if ((ret =
1043 ax8817x_write_cmd(dev, AX_CMD_SW_RESET, AX_SWRESET_IPRL | AX_SWRESET_PRL, 0, 0, buf)) < 0) {
1044 dbg("Set Internal/External PHY reset control: %d", ret);
1045 goto out2;
1046 }
1047 msleep(150);
1048
1049
1050 dev->net->set_multicast_list = ax8817x_set_multicast;
1051 dev->net->ethtool_ops = &ax88772_ethtool_ops;
1052
1053 ax8817x_mdio_write(dev->net, dev->mii.phy_id, MII_BMCR, BMCR_RESET);
1054 ax8817x_mdio_write(dev->net, dev->mii.phy_id, MII_ADVERTISE,
1055 ADVERTISE_ALL | ADVERTISE_CSMA);
1056 mii_nway_restart(&dev->mii);
1057
1058 if ((ret = ax8817x_write_cmd(dev, AX_CMD_WRITE_MEDIUM_MODE, AX88772_MEDIUM_DEFAULT, 0, 0, buf)) < 0) {
1059 dbg("Write medium mode register: %d", ret);
1060 goto out2;
1061 }
1062
1063 if ((ret = ax8817x_write_cmd(dev, AX_CMD_WRITE_IPG0, AX88772_IPG0_DEFAULT | AX88772_IPG1_DEFAULT,AX88772_IPG2_DEFAULT, 0, buf)) < 0) {
1064 dbg("Write IPG,IPG1,IPG2 failed: %d", ret);
1065 goto out2;
1066 }
1067 if ((ret =
1068 ax8817x_write_cmd(dev, AX_CMD_SET_HW_MII, 0, 0, 0, &buf)) < 0) {
1069 dbg("Failed to set hardware MII: %02x", ret);
1070 goto out2;
1071 }
1072
1073 /* Set RX_CTL to default values with 2k buffer, and enable cactus */
1074 if ((ret =
1075 ax8817x_write_cmd(dev, AX_CMD_WRITE_RX_CTL, 0x0088, 0, 0,
1076 buf)) < 0) {
1077 dbg("Reset RX_CTL failed: %d", ret);
1078 goto out2;
1079 }
1080
1081 kfree(buf);
1082
1083 return 0;
1084
1085out2:
1086 kfree(buf);
1087out1:
1088 return ret;
1089}
1090
1091static int ax88772_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
1092{
1093 u32 *header;
1094 char *packet;
1095 struct sk_buff *ax_skb;
1096 u16 size;
1097
1098 header = (u32 *) skb->data;
1099 le32_to_cpus(header);
1100 packet = (char *)(header + 1);
1101
1102 skb_pull(skb, 4);
1103
1104 while (skb->len > 0) {
1105 if ((short)(*header & 0x0000ffff) !=
1106 ~((short)((*header & 0xffff0000) >> 16))) {
1107 devdbg(dev,"header length data is error");
1108 }
1109 /* get the packet length */
1110 size = (u16) (*header & 0x0000ffff);
1111
1112 if ((skb->len) - ((size + 1) & 0xfffe) == 0)
1113 return 2;
1114 if (size > ETH_FRAME_LEN) {
1115 devdbg(dev,"invalid rx length %d", size);
1116 return 0;
1117 }
1118 ax_skb = skb_clone(skb, GFP_ATOMIC);
1119 if (ax_skb) {
1120 ax_skb->len = size;
1121 ax_skb->data = packet;
1122 ax_skb->tail = packet + size;
1123 skb_return(dev, ax_skb);
1124 } else {
1125 return 0;
1126 }
1127
1128 skb_pull(skb, (size + 1) & 0xfffe);
1129
1130 if (skb->len == 0)
1131 break;
1132
1133 header = (u32 *) skb->data;
1134 le32_to_cpus(header);
1135 packet = (char *)(header + 1);
1136 skb_pull(skb, 4);
1137 }
1138
1139 if (skb->len < 0) {
1140 devdbg(dev,"invalid rx length %d", skb->len);
1141 return 0;
1142 }
1143 return 1;
1144}
1145
1146static struct sk_buff *ax88772_tx_fixup(struct usbnet *dev, struct sk_buff *skb,
1147 int flags)
1148{
1149 int padlen;
1150 int headroom = skb_headroom(skb);
1151 int tailroom = skb_tailroom(skb);
1152 u32 *packet_len;
1153 u32 *padbytes_ptr;
1154
1155 padlen = ((skb->len + 4) % 512) ? 0 : 4;
1156
1157 if ((!skb_cloned(skb))
1158 && ((headroom + tailroom) >= (4 + padlen))) {
1159 if ((headroom < 4) || (tailroom < padlen)) {
1160 skb->data = memmove(skb->head + 4, skb->data, skb->len);
1161 skb->tail = skb->data + skb->len;
1162 }
1163 } else {
1164 struct sk_buff *skb2;
1165 skb2 = skb_copy_expand(skb, 4, padlen, flags);
1166 dev_kfree_skb_any(skb);
1167 skb = skb2;
1168 if (!skb)
1169 return NULL;
1170 }
1171
1172 packet_len = (u32 *) skb_push(skb, 4);
1173
1174 packet_len = (u32 *) skb->data;
1175 *packet_len = (((skb->len - 4) ^ 0x0000ffff) << 16) + (skb->len - 4);
1176
1177 if ((skb->len % 512) == 0) {
1178 padbytes_ptr = (u32 *) skb->tail;
1179 *padbytes_ptr = 0xffff0000;
1180 skb_put(skb, padlen);
1181 }
1182 return skb;
1183}
1184
1185static int ax88772_link_reset(struct usbnet *dev)
1186{
1187 u16 lpa;
1188 u16 mode;
1189
1190 mode = AX88772_MEDIUM_DEFAULT;
1191 lpa = ax8817x_mdio_read(dev->net, dev->mii.phy_id, MII_LPA);
1192
1193 if ((lpa & LPA_DUPLEX) == 0)
1194 mode &= ~AX88772_MEDIUM_FULL_DUPLEX;
1195 if ((lpa & LPA_100) == 0)
1196 mode &= ~AX88772_MEDIUM_100MB;
1197 ax8817x_write_cmd(dev, AX_CMD_WRITE_MEDIUM_MODE, mode, 0, 0, NULL);
1198
1199 return 0;
1200}
1201
1202static const struct driver_info ax8817x_info = {
1203 .description = "ASIX AX8817x USB 2.0 Ethernet",
1204 .bind = ax8817x_bind,
1205 .status = ax8817x_status,
1206 .link_reset = ax88172_link_reset,
1207 .reset = ax88172_link_reset,
1208 .flags = FLAG_ETHER,
1209 .data = 0x00130103,
1210};
1211
1212static const struct driver_info dlink_dub_e100_info = {
1213 .description = "DLink DUB-E100 USB Ethernet",
1214 .bind = ax8817x_bind,
1215 .status = ax8817x_status,
1216 .link_reset = ax88172_link_reset,
1217 .reset = ax88172_link_reset,
1218 .flags = FLAG_ETHER,
1219 .data = 0x009f9d9f,
1220};
1221
1222static const struct driver_info netgear_fa120_info = {
1223 .description = "Netgear FA-120 USB Ethernet",
1224 .bind = ax8817x_bind,
1225 .status = ax8817x_status,
1226 .link_reset = ax88172_link_reset,
1227 .reset = ax88172_link_reset,
1228 .flags = FLAG_ETHER,
1229 .data = 0x00130103,
1230};
1231
1232static const struct driver_info hawking_uf200_info = {
1233 .description = "Hawking UF200 USB Ethernet",
1234 .bind = ax8817x_bind,
1235 .status = ax8817x_status,
1236 .link_reset = ax88172_link_reset,
1237 .reset = ax88172_link_reset,
1238 .flags = FLAG_ETHER,
1239 .data = 0x001f1d1f,
1240};
1241
1242static const struct driver_info ax88772_info = {
1243 .description = "ASIX AX88772 USB 2.0 Ethernet",
1244 .bind = ax88772_bind,
1245 .status = ax8817x_status,
1246 .link_reset = ax88772_link_reset,
1247 .reset = ax88772_link_reset,
1248 .flags = FLAG_ETHER | FLAG_FRAMING_AX,
1249 .rx_fixup = ax88772_rx_fixup,
1250 .tx_fixup = ax88772_tx_fixup,
1251 .data = 0x00130103,
1252};
1253
1254#endif /* CONFIG_USB_AX8817X */
1255
1256
1257
1258#ifdef CONFIG_USB_BELKIN
1259#define HAVE_HARDWARE
1260
1261/*-------------------------------------------------------------------------
1262 *
1263 * Belkin F5U104 ... two NetChip 2280 devices + Atmel microcontroller
1264 *
1265 * ... also two eTEK designs, including one sold as "Advance USBNET"
1266 *
1267 *-------------------------------------------------------------------------*/
1268
1269static const struct driver_info belkin_info = {
1270 .description = "Belkin, eTEK, or compatible",
1271};
1272
1273#endif /* CONFIG_USB_BELKIN */
1274
1275
1276
1277/*-------------------------------------------------------------------------
1278 *
1279 * Communications Device Class declarations.
1280 * Used by CDC Ethernet, and some CDC variants
1281 *
1282 *-------------------------------------------------------------------------*/
1283
1284#ifdef CONFIG_USB_CDCETHER
1285#define NEED_GENERIC_CDC
1286#endif
1287
1288#ifdef CONFIG_USB_ZAURUS
1289/* Ethernet variant uses funky framing, broken ethernet addressing */
1290#define NEED_GENERIC_CDC
1291#endif
1292
1293#ifdef CONFIG_USB_RNDIS
1294/* ACM variant uses even funkier framing, complex control RPC scheme */
1295#define NEED_GENERIC_CDC
1296#endif
1297
1298
1299#ifdef NEED_GENERIC_CDC
1300
1301#include <linux/usb_cdc.h>
1302
1303struct cdc_state {
1304 struct usb_cdc_header_desc *header;
1305 struct usb_cdc_union_desc *u;
1306 struct usb_cdc_ether_desc *ether;
1307 struct usb_interface *control;
1308 struct usb_interface *data;
1309};
1310
1311static struct usb_driver usbnet_driver;
1312
1313/*
1314 * probes control interface, claims data interface, collects the bulk
1315 * endpoints, activates data interface (if needed), maybe sets MTU.
1316 * all pure cdc, except for certain firmware workarounds.
1317 */
1318static int generic_cdc_bind (struct usbnet *dev, struct usb_interface *intf)
1319{
1320 u8 *buf = intf->cur_altsetting->extra;
1321 int len = intf->cur_altsetting->extralen;
1322 struct usb_interface_descriptor *d;
1323 struct cdc_state *info = (void *) &dev->data;
1324 int status;
1325 int rndis;
1326
1327 if (sizeof dev->data < sizeof *info)
1328 return -EDOM;
1329
1330 /* expect strict spec conformance for the descriptors, but
1331 * cope with firmware which stores them in the wrong place
1332 */
1333 if (len == 0 && dev->udev->actconfig->extralen) {
1334 /* Motorola SB4100 (and others: Brad Hards says it's
1335 * from a Broadcom design) put CDC descriptors here
1336 */
1337 buf = dev->udev->actconfig->extra;
1338 len = dev->udev->actconfig->extralen;
1339 if (len)
1340 dev_dbg (&intf->dev,
1341 "CDC descriptors on config\n");
1342 }
1343
1344 /* this assumes that if there's a non-RNDIS vendor variant
1345 * of cdc-acm, it'll fail RNDIS requests cleanly.
1346 */
1347 rndis = (intf->cur_altsetting->desc.bInterfaceProtocol == 0xff);
1348
1349 memset (info, 0, sizeof *info);
1350 info->control = intf;
1351 while (len > 3) {
1352 if (buf [1] != USB_DT_CS_INTERFACE)
1353 goto next_desc;
1354
1355 /* use bDescriptorSubType to identify the CDC descriptors.
1356 * We expect devices with CDC header and union descriptors.
1357 * For CDC Ethernet we need the ethernet descriptor.
1358 * For RNDIS, ignore two (pointless) CDC modem descriptors
1359 * in favor of a complicated OID-based RPC scheme doing what
1360 * CDC Ethernet achieves with a simple descriptor.
1361 */
1362 switch (buf [2]) {
1363 case USB_CDC_HEADER_TYPE:
1364 if (info->header) {
1365 dev_dbg (&intf->dev, "extra CDC header\n");
1366 goto bad_desc;
1367 }
1368 info->header = (void *) buf;
1369 if (info->header->bLength != sizeof *info->header) {
1370 dev_dbg (&intf->dev, "CDC header len %u\n",
1371 info->header->bLength);
1372 goto bad_desc;
1373 }
1374 break;
1375 case USB_CDC_UNION_TYPE:
1376 if (info->u) {
1377 dev_dbg (&intf->dev, "extra CDC union\n");
1378 goto bad_desc;
1379 }
1380 info->u = (void *) buf;
1381 if (info->u->bLength != sizeof *info->u) {
1382 dev_dbg (&intf->dev, "CDC union len %u\n",
1383 info->u->bLength);
1384 goto bad_desc;
1385 }
1386
1387 /* we need a master/control interface (what we're
1388 * probed with) and a slave/data interface; union
1389 * descriptors sort this all out.
1390 */
1391 info->control = usb_ifnum_to_if(dev->udev,
1392 info->u->bMasterInterface0);
1393 info->data = usb_ifnum_to_if(dev->udev,
1394 info->u->bSlaveInterface0);
1395 if (!info->control || !info->data) {
1396 dev_dbg (&intf->dev,
1397 "master #%u/%p slave #%u/%p\n",
1398 info->u->bMasterInterface0,
1399 info->control,
1400 info->u->bSlaveInterface0,
1401 info->data);
1402 goto bad_desc;
1403 }
1404 if (info->control != intf) {
1405 dev_dbg (&intf->dev, "bogus CDC Union\n");
1406 /* Ambit USB Cable Modem (and maybe others)
1407 * interchanges master and slave interface.
1408 */
1409 if (info->data == intf) {
1410 info->data = info->control;
1411 info->control = intf;
1412 } else
1413 goto bad_desc;
1414 }
1415
1416 /* a data interface altsetting does the real i/o */
1417 d = &info->data->cur_altsetting->desc;
1418 if (d->bInterfaceClass != USB_CLASS_CDC_DATA) {
1419 dev_dbg (&intf->dev, "slave class %u\n",
1420 d->bInterfaceClass);
1421 goto bad_desc;
1422 }
1423 break;
1424 case USB_CDC_ETHERNET_TYPE:
1425 if (info->ether) {
1426 dev_dbg (&intf->dev, "extra CDC ether\n");
1427 goto bad_desc;
1428 }
1429 info->ether = (void *) buf;
1430 if (info->ether->bLength != sizeof *info->ether) {
1431 dev_dbg (&intf->dev, "CDC ether len %u\n",
1432 info->ether->bLength);
1433 goto bad_desc;
1434 }
1435 dev->net->mtu = le16_to_cpup (
1436 &info->ether->wMaxSegmentSize)
1437 - ETH_HLEN;
1438 /* because of Zaurus, we may be ignoring the host
1439 * side link address we were given.
1440 */
1441 break;
1442 }
1443next_desc:
1444 len -= buf [0]; /* bLength */
1445 buf += buf [0];
1446 }
1447
1448 if (!info->header || !info->u || (!rndis && !info->ether)) {
1449 dev_dbg (&intf->dev, "missing cdc %s%s%sdescriptor\n",
1450 info->header ? "" : "header ",
1451 info->u ? "" : "union ",
1452 info->ether ? "" : "ether ");
1453 goto bad_desc;
1454 }
1455
1456 /* claim data interface and set it up ... with side effects.
1457 * network traffic can't flow until an altsetting is enabled.
1458 */
1459 status = usb_driver_claim_interface (&usbnet_driver, info->data, dev);
1460 if (status < 0)
1461 return status;
1462 status = get_endpoints (dev, info->data);
1463 if (status < 0) {
1464 /* ensure immediate exit from usbnet_disconnect */
1465 usb_set_intfdata(info->data, NULL);
1466 usb_driver_release_interface (&usbnet_driver, info->data);
1467 return status;
1468 }
1469
1470 /* status endpoint: optional for CDC Ethernet, not RNDIS (or ACM) */
1471 dev->status = NULL;
1472 if (info->control->cur_altsetting->desc.bNumEndpoints == 1) {
1473 struct usb_endpoint_descriptor *desc;
1474
1475 dev->status = &info->control->cur_altsetting->endpoint [0];
1476 desc = &dev->status->desc;
1477 if (desc->bmAttributes != USB_ENDPOINT_XFER_INT
1478 || !(desc->bEndpointAddress & USB_DIR_IN)
1479 || (le16_to_cpu(desc->wMaxPacketSize)
1480 < sizeof (struct usb_cdc_notification))
1481 || !desc->bInterval) {
1482 dev_dbg (&intf->dev, "bad notification endpoint\n");
1483 dev->status = NULL;
1484 }
1485 }
1486 if (rndis && !dev->status) {
1487 dev_dbg (&intf->dev, "missing RNDIS status endpoint\n");
1488 usb_set_intfdata(info->data, NULL);
1489 usb_driver_release_interface (&usbnet_driver, info->data);
1490 return -ENODEV;
1491 }
1492 return 0;
1493
1494bad_desc:
1495 dev_info (&dev->udev->dev, "bad CDC descriptors\n");
1496 return -ENODEV;
1497}
1498
1499static void cdc_unbind (struct usbnet *dev, struct usb_interface *intf)
1500{
1501 struct cdc_state *info = (void *) &dev->data;
1502
1503 /* disconnect master --> disconnect slave */
1504 if (intf == info->control && info->data) {
1505 /* ensure immediate exit from usbnet_disconnect */
1506 usb_set_intfdata(info->data, NULL);
1507 usb_driver_release_interface (&usbnet_driver, info->data);
1508 info->data = NULL;
1509 }
1510
1511 /* and vice versa (just in case) */
1512 else if (intf == info->data && info->control) {
1513 /* ensure immediate exit from usbnet_disconnect */
1514 usb_set_intfdata(info->control, NULL);
1515 usb_driver_release_interface (&usbnet_driver, info->control);
1516 info->control = NULL;
1517 }
1518}
1519
1520#endif /* NEED_GENERIC_CDC */
1521
1522
1523#ifdef CONFIG_USB_CDCETHER
1524#define HAVE_HARDWARE
1525
1526/*-------------------------------------------------------------------------
1527 *
1528 * Communications Device Class, Ethernet Control model
1529 *
1530 * Takes two interfaces. The DATA interface is inactive till an altsetting
1531 * is selected. Configuration data includes class descriptors.
1532 *
1533 * This should interop with whatever the 2.4 "CDCEther.c" driver
1534 * (by Brad Hards) talked with.
1535 *
1536 *-------------------------------------------------------------------------*/
1537
1538#include <linux/ctype.h>
1539
1540
1541static void dumpspeed (struct usbnet *dev, __le32 *speeds)
1542{
1543 if (netif_msg_timer (dev))
1544 devinfo (dev, "link speeds: %u kbps up, %u kbps down",
1545 __le32_to_cpu(speeds[0]) / 1000,
1546 __le32_to_cpu(speeds[1]) / 1000);
1547}
1548
1549static void cdc_status (struct usbnet *dev, struct urb *urb)
1550{
1551 struct usb_cdc_notification *event;
1552
1553 if (urb->actual_length < sizeof *event)
1554 return;
1555
1556 /* SPEED_CHANGE can get split into two 8-byte packets */
1557 if (test_and_clear_bit (EVENT_STS_SPLIT, &dev->flags)) {
1558 dumpspeed (dev, (__le32 *) urb->transfer_buffer);
1559 return;
1560 }
1561
1562 event = urb->transfer_buffer;
1563 switch (event->bNotificationType) {
1564 case USB_CDC_NOTIFY_NETWORK_CONNECTION:
1565 if (netif_msg_timer (dev))
1566 devdbg (dev, "CDC: carrier %s",
1567 event->wValue ? "on" : "off");
1568 if (event->wValue)
1569 netif_carrier_on(dev->net);
1570 else
1571 netif_carrier_off(dev->net);
1572 break;
1573 case USB_CDC_NOTIFY_SPEED_CHANGE: /* tx/rx rates */
1574 if (netif_msg_timer (dev))
1575 devdbg (dev, "CDC: speed change (len %d)",
1576 urb->actual_length);
1577 if (urb->actual_length != (sizeof *event + 8))
1578 set_bit (EVENT_STS_SPLIT, &dev->flags);
1579 else
1580 dumpspeed (dev, (__le32 *) &event[1]);
1581 break;
1582 // case USB_CDC_NOTIFY_RESPONSE_AVAILABLE: /* RNDIS; or unsolicited */
1583 default:
1584 deverr (dev, "CDC: unexpected notification %02x!",
1585 event->bNotificationType);
1586 break;
1587 }
1588}
1589
1590static u8 nibble (unsigned char c)
1591{
1592 if (likely (isdigit (c)))
1593 return c - '0';
1594 c = toupper (c);
1595 if (likely (isxdigit (c)))
1596 return 10 + c - 'A';
1597 return 0;
1598}
1599
1600static inline int
1601get_ethernet_addr (struct usbnet *dev, struct usb_cdc_ether_desc *e)
1602{
1603 int tmp, i;
1604 unsigned char buf [13];
1605
1606 tmp = usb_string (dev->udev, e->iMACAddress, buf, sizeof buf);
1607 if (tmp != 12) {
1608 dev_dbg (&dev->udev->dev,
1609 "bad MAC string %d fetch, %d\n", e->iMACAddress, tmp);
1610 if (tmp >= 0)
1611 tmp = -EINVAL;
1612 return tmp;
1613 }
1614 for (i = tmp = 0; i < 6; i++, tmp += 2)
1615 dev->net->dev_addr [i] =
1616 (nibble (buf [tmp]) << 4) + nibble (buf [tmp + 1]);
1617 return 0;
1618}
1619
1620static int cdc_bind (struct usbnet *dev, struct usb_interface *intf)
1621{
1622 int status;
1623 struct cdc_state *info = (void *) &dev->data;
1624
1625 status = generic_cdc_bind (dev, intf);
1626 if (status < 0)
1627 return status;
1628
1629 status = get_ethernet_addr (dev, info->ether);
1630 if (status < 0) {
1631 usb_set_intfdata(info->data, NULL);
1632 usb_driver_release_interface (&usbnet_driver, info->data);
1633 return status;
1634 }
1635
1636 /* FIXME cdc-ether has some multicast code too, though it complains
1637 * in routine cases. info->ether describes the multicast support.
1638 */
1639 return 0;
1640}
1641
1642static const struct driver_info cdc_info = {
1643 .description = "CDC Ethernet Device",
1644 .flags = FLAG_ETHER,
1645 // .check_connect = cdc_check_connect,
1646 .bind = cdc_bind,
1647 .unbind = cdc_unbind,
1648 .status = cdc_status,
1649};
1650
1651#endif /* CONFIG_USB_CDCETHER */
1652
1653
1654
1655#ifdef CONFIG_USB_EPSON2888
1656#define HAVE_HARDWARE
1657
1658/*-------------------------------------------------------------------------
1659 *
1660 * EPSON USB clients
1661 *
1662 * This is the same idea as Linux PDAs (below) except the firmware in the
1663 * device might not be Tux-powered. Epson provides reference firmware that
1664 * implements this interface. Product developers can reuse or modify that
1665 * code, such as by using their own product and vendor codes.
1666 *
1667 * Support was from Juro Bystricky <bystricky.juro@erd.epson.com>
1668 *
1669 *-------------------------------------------------------------------------*/
1670
1671static const struct driver_info epson2888_info = {
1672 .description = "Epson USB Device",
1673 .check_connect = always_connected,
1674
1675 .in = 4, .out = 3,
1676};
1677
1678#endif /* CONFIG_USB_EPSON2888 */
1679
1680
1681#ifdef CONFIG_USB_GENESYS
1682#define HAVE_HARDWARE
1683
1684/*-------------------------------------------------------------------------
1685 *
1686 * GeneSys GL620USB-A (www.genesyslogic.com.tw)
1687 *
1688 * ... should partially interop with the Win32 driver for this hardware
1689 * The GeneSys docs imply there's some NDIS issue motivating this framing.
1690 *
1691 * Some info from GeneSys:
1692 * - GL620USB-A is full duplex; GL620USB is only half duplex for bulk.
1693 * (Some cables, like the BAFO-100c, use the half duplex version.)
1694 * - For the full duplex model, the low bit of the version code says
1695 * which side is which ("left/right").
1696 * - For the half duplex type, a control/interrupt handshake settles
1697 * the transfer direction. (That's disabled here, partially coded.)
1698 * A control URB would block until other side writes an interrupt.
1699 *
1700 * Original code from Jiun-Jie Huang <huangjj@genesyslogic.com.tw>
1701 * and merged into "usbnet" by Stanislav Brabec <utx@penguin.cz>.
1702 *
1703 *-------------------------------------------------------------------------*/
1704
1705// control msg write command
1706#define GENELINK_CONNECT_WRITE 0xF0
1707// interrupt pipe index
1708#define GENELINK_INTERRUPT_PIPE 0x03
1709// interrupt read buffer size
1710#define INTERRUPT_BUFSIZE 0x08
1711// interrupt pipe interval value
1712#define GENELINK_INTERRUPT_INTERVAL 0x10
1713// max transmit packet number per transmit
1714#define GL_MAX_TRANSMIT_PACKETS 32
1715// max packet length
1716#define GL_MAX_PACKET_LEN 1514
1717// max receive buffer size
1718#define GL_RCV_BUF_SIZE \
1719 (((GL_MAX_PACKET_LEN + 4) * GL_MAX_TRANSMIT_PACKETS) + 4)
1720
1721struct gl_packet {
1722 u32 packet_length;
1723 char packet_data [1];
1724};
1725
1726struct gl_header {
1727 u32 packet_count;
1728 struct gl_packet packets;
1729};
1730
1731#ifdef GENELINK_ACK
1732
1733// FIXME: this code is incomplete, not debugged; it doesn't
1734// handle interrupts correctly. interrupts should be generic
1735// code like all other device I/O, anyway.
1736
1737struct gl_priv {
1738 struct urb *irq_urb;
1739 char irq_buf [INTERRUPT_BUFSIZE];
1740};
1741
1742static inline int gl_control_write (struct usbnet *dev, u8 request, u16 value)
1743{
1744 int retval;
1745
1746 retval = usb_control_msg (dev->udev,
1747 usb_sndctrlpipe (dev->udev, 0),
1748 request,
1749 USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE,
1750 value,
1751 0, // index
1752 0, // data buffer
1753 0, // size
1754 CONTROL_TIMEOUT_MS);
1755 return retval;
1756}
1757
1758static void gl_interrupt_complete (struct urb *urb, struct pt_regs *regs)
1759{
1760 int status = urb->status;
1761
1762 switch (status) {
1763 case 0:
1764 /* success */
1765 break;
1766 case -ECONNRESET:
1767 case -ENOENT:
1768 case -ESHUTDOWN:
1769 /* this urb is terminated, clean up */
1770 dbg("%s - urb shutting down with status: %d",
1771 __FUNCTION__, status);
1772 return;
1773 default:
1774 dbg("%s - nonzero urb status received: %d",
1775 __FUNCTION__, urb->status);
1776 }
1777
1778 status = usb_submit_urb (urb, GFP_ATOMIC);
1779 if (status)
1780 err ("%s - usb_submit_urb failed with result %d",
1781 __FUNCTION__, status);
1782}
1783
1784static int gl_interrupt_read (struct usbnet *dev)
1785{
1786 struct gl_priv *priv = dev->priv_data;
1787 int retval;
1788
1789 // issue usb interrupt read
1790 if (priv && priv->irq_urb) {
1791 // submit urb
1792 if ((retval = usb_submit_urb (priv->irq_urb, GFP_KERNEL)) != 0)
1793 dbg ("gl_interrupt_read: submit fail - %X...", retval);
1794 else
1795 dbg ("gl_interrupt_read: submit success...");
1796 }
1797
1798 return 0;
1799}
1800
1801// check whether another side is connected
1802static int genelink_check_connect (struct usbnet *dev)
1803{
1804 int retval;
1805
1806 dbg ("genelink_check_connect...");
1807
1808 // detect whether another side is connected
1809 if ((retval = gl_control_write (dev, GENELINK_CONNECT_WRITE, 0)) != 0) {
1810 dbg ("%s: genelink_check_connect write fail - %X",
1811 dev->net->name, retval);
1812 return retval;
1813 }
1814
1815 // usb interrupt read to ack another side
1816 if ((retval = gl_interrupt_read (dev)) != 0) {
1817 dbg ("%s: genelink_check_connect read fail - %X",
1818 dev->net->name, retval);
1819 return retval;
1820 }
1821
1822 dbg ("%s: genelink_check_connect read success", dev->net->name);
1823 return 0;
1824}
1825
1826// allocate and initialize the private data for genelink
1827static int genelink_init (struct usbnet *dev)
1828{
1829 struct gl_priv *priv;
1830
1831 // allocate the private data structure
1832 if ((priv = kmalloc (sizeof *priv, GFP_KERNEL)) == 0) {
1833 dbg ("%s: cannot allocate private data per device",
1834 dev->net->name);
1835 return -ENOMEM;
1836 }
1837
1838 // allocate irq urb
1839 if ((priv->irq_urb = usb_alloc_urb (0, GFP_KERNEL)) == 0) {
1840 dbg ("%s: cannot allocate private irq urb per device",
1841 dev->net->name);
1842 kfree (priv);
1843 return -ENOMEM;
1844 }
1845
1846 // fill irq urb
1847 usb_fill_int_urb (priv->irq_urb, dev->udev,
1848 usb_rcvintpipe (dev->udev, GENELINK_INTERRUPT_PIPE),
1849 priv->irq_buf, INTERRUPT_BUFSIZE,
1850 gl_interrupt_complete, 0,
1851 GENELINK_INTERRUPT_INTERVAL);
1852
1853 // set private data pointer
1854 dev->priv_data = priv;
1855
1856 return 0;
1857}
1858
1859// release the private data
1860static int genelink_free (struct usbnet *dev)
1861{
1862 struct gl_priv *priv = dev->priv_data;
1863
1864 if (!priv)
1865 return 0;
1866
1867// FIXME: can't cancel here; it's synchronous, and
1868// should have happened earlier in any case (interrupt
1869// handling needs to be generic)
1870
1871 // cancel irq urb first
1872 usb_kill_urb (priv->irq_urb);
1873
1874 // free irq urb
1875 usb_free_urb (priv->irq_urb);
1876
1877 // free the private data structure
1878 kfree (priv);
1879
1880 return 0;
1881}
1882
1883#endif
1884
1885static int genelink_rx_fixup (struct usbnet *dev, struct sk_buff *skb)
1886{
1887 struct gl_header *header;
1888 struct gl_packet *packet;
1889 struct sk_buff *gl_skb;
1890 u32 size;
1891
1892 header = (struct gl_header *) skb->data;
1893
1894 // get the packet count of the received skb
1895 le32_to_cpus (&header->packet_count);
1896 if ((header->packet_count > GL_MAX_TRANSMIT_PACKETS)
1897 || (header->packet_count < 0)) {
1898 dbg ("genelink: invalid received packet count %d",
1899 header->packet_count);
1900 return 0;
1901 }
1902
1903 // set the current packet pointer to the first packet
1904 packet = &header->packets;
1905
1906 // decrement the length for the packet count size 4 bytes
1907 skb_pull (skb, 4);
1908
1909 while (header->packet_count > 1) {
1910 // get the packet length
1911 size = packet->packet_length;
1912
1913 // this may be a broken packet
1914 if (size > GL_MAX_PACKET_LEN) {
1915 dbg ("genelink: invalid rx length %d", size);
1916 return 0;
1917 }
1918
1919 // allocate the skb for the individual packet
1920 gl_skb = alloc_skb (size, GFP_ATOMIC);
1921 if (gl_skb) {
1922
1923 // copy the packet data to the new skb
1924 memcpy(skb_put(gl_skb, size), packet->packet_data, size);
1925 skb_return (dev, gl_skb);
1926 }
1927
1928 // advance to the next packet
1929 packet = (struct gl_packet *)
1930 &packet->packet_data [size];
1931 header->packet_count--;
1932
1933 // shift the data pointer to the next gl_packet
1934 skb_pull (skb, size + 4);
1935 }
1936
1937 // skip the packet length field 4 bytes
1938 skb_pull (skb, 4);
1939
1940 if (skb->len > GL_MAX_PACKET_LEN) {
1941 dbg ("genelink: invalid rx length %d", skb->len);
1942 return 0;
1943 }
1944 return 1;
1945}
1946
1947static struct sk_buff *
1948genelink_tx_fixup (struct usbnet *dev, struct sk_buff *skb, int flags)
1949{
1950 int padlen;
1951 int length = skb->len;
1952 int headroom = skb_headroom (skb);
1953 int tailroom = skb_tailroom (skb);
1954 u32 *packet_count;
1955 u32 *packet_len;
1956
1957 // FIXME: magic numbers, bleech
1958 padlen = ((skb->len + (4 + 4*1)) % 64) ? 0 : 1;
1959
1960 if ((!skb_cloned (skb))
1961 && ((headroom + tailroom) >= (padlen + (4 + 4*1)))) {
1962 if ((headroom < (4 + 4*1)) || (tailroom < padlen)) {
1963 skb->data = memmove (skb->head + (4 + 4*1),
1964 skb->data, skb->len);
1965 skb->tail = skb->data + skb->len;
1966 }
1967 } else {
1968 struct sk_buff *skb2;
1969 skb2 = skb_copy_expand (skb, (4 + 4*1) , padlen, flags);
1970 dev_kfree_skb_any (skb);
1971 skb = skb2;
1972 if (!skb)
1973 return NULL;
1974 }
1975
1976 // attach the packet count to the header
1977 packet_count = (u32 *) skb_push (skb, (4 + 4*1));
1978 packet_len = packet_count + 1;
1979
1980 // FIXME little endian?
1981 *packet_count = 1;
1982 *packet_len = length;
1983
1984 // add padding byte
1985 if ((skb->len % dev->maxpacket) == 0)
1986 skb_put (skb, 1);
1987
1988 return skb;
1989}
1990
1991static const struct driver_info genelink_info = {
1992 .description = "Genesys GeneLink",
1993 .flags = FLAG_FRAMING_GL | FLAG_NO_SETINT,
1994 .rx_fixup = genelink_rx_fixup,
1995 .tx_fixup = genelink_tx_fixup,
1996
1997 .in = 1, .out = 2,
1998
1999#ifdef GENELINK_ACK
2000 .check_connect =genelink_check_connect,
2001#endif
2002};
2003
2004#endif /* CONFIG_USB_GENESYS */
2005
2006
2007
2008#ifdef CONFIG_USB_NET1080
2009#define HAVE_HARDWARE
2010
2011/*-------------------------------------------------------------------------
2012 *
2013 * Netchip 1080 driver ... http://www.netchip.com
2014 * Used in LapLink cables
2015 *
2016 *-------------------------------------------------------------------------*/
2017
2018#define dev_packet_id data[0]
2019#define frame_errors data[1]
2020
2021/*
2022 * NetChip framing of ethernet packets, supporting additional error
2023 * checks for links that may drop bulk packets from inside messages.
2024 * Odd USB length == always short read for last usb packet.
2025 * - nc_header
2026 * - Ethernet header (14 bytes)
2027 * - payload
2028 * - (optional padding byte, if needed so length becomes odd)
2029 * - nc_trailer
2030 *
2031 * This framing is to be avoided for non-NetChip devices.
2032 */
2033
2034struct nc_header { // packed:
2035 __le16 hdr_len; // sizeof nc_header (LE, all)
2036 __le16 packet_len; // payload size (including ethhdr)
2037 __le16 packet_id; // detects dropped packets
2038#define MIN_HEADER 6
2039
2040 // all else is optional, and must start with:
2041 // u16 vendorId; // from usb-if
2042 // u16 productId;
2043} __attribute__((__packed__));
2044
2045#define PAD_BYTE ((unsigned char)0xAC)
2046
2047struct nc_trailer {
2048 __le16 packet_id;
2049} __attribute__((__packed__));
2050
2051// packets may use FLAG_FRAMING_NC and optional pad
2052#define FRAMED_SIZE(mtu) (sizeof (struct nc_header) \
2053 + sizeof (struct ethhdr) \
2054 + (mtu) \
2055 + 1 \
2056 + sizeof (struct nc_trailer))
2057
2058#define MIN_FRAMED FRAMED_SIZE(0)
2059
2060
2061/*
2062 * Zero means no timeout; else, how long a 64 byte bulk packet may be queued
2063 * before the hardware drops it. If that's done, the driver will need to
2064 * frame network packets to guard against the dropped USB packets. The win32
2065 * driver sets this for both sides of the link.
2066 */
2067#define NC_READ_TTL_MS ((u8)255) // ms
2068
2069/*
2070 * We ignore most registers and EEPROM contents.
2071 */
2072#define REG_USBCTL ((u8)0x04)
2073#define REG_TTL ((u8)0x10)
2074#define REG_STATUS ((u8)0x11)
2075
2076/*
2077 * Vendor specific requests to read/write data
2078 */
2079#define REQUEST_REGISTER ((u8)0x10)
2080#define REQUEST_EEPROM ((u8)0x11)
2081
2082static int
2083nc_vendor_read (struct usbnet *dev, u8 req, u8 regnum, u16 *retval_ptr)
2084{
2085 int status = usb_control_msg (dev->udev,
2086 usb_rcvctrlpipe (dev->udev, 0),
2087 req,
2088 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
2089 0, regnum,
2090 retval_ptr, sizeof *retval_ptr,
2091 CONTROL_TIMEOUT_MS);
2092 if (status > 0)
2093 status = 0;
2094 if (!status)
2095 le16_to_cpus (retval_ptr);
2096 return status;
2097}
2098
2099static inline int
2100nc_register_read (struct usbnet *dev, u8 regnum, u16 *retval_ptr)
2101{
2102 return nc_vendor_read (dev, REQUEST_REGISTER, regnum, retval_ptr);
2103}
2104
2105// no retval ... can become async, usable in_interrupt()
2106static void
2107nc_vendor_write (struct usbnet *dev, u8 req, u8 regnum, u16 value)
2108{
2109 usb_control_msg (dev->udev,
2110 usb_sndctrlpipe (dev->udev, 0),
2111 req,
2112 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
2113 value, regnum,
2114 NULL, 0, // data is in setup packet
2115 CONTROL_TIMEOUT_MS);
2116}
2117
2118static inline void
2119nc_register_write (struct usbnet *dev, u8 regnum, u16 value)
2120{
2121 nc_vendor_write (dev, REQUEST_REGISTER, regnum, value);
2122}
2123
2124
2125#if 0
2126static void nc_dump_registers (struct usbnet *dev)
2127{
2128 u8 reg;
2129 u16 *vp = kmalloc (sizeof (u16));
2130
2131 if (!vp) {
2132 dbg ("no memory?");
2133 return;
2134 }
2135
2136 dbg ("%s registers:", dev->net->name);
2137 for (reg = 0; reg < 0x20; reg++) {
2138 int retval;
2139
2140 // reading some registers is trouble
2141 if (reg >= 0x08 && reg <= 0xf)
2142 continue;
2143 if (reg >= 0x12 && reg <= 0x1e)
2144 continue;
2145
2146 retval = nc_register_read (dev, reg, vp);
2147 if (retval < 0)
2148 dbg ("%s reg [0x%x] ==> error %d",
2149 dev->net->name, reg, retval);
2150 else
2151 dbg ("%s reg [0x%x] = 0x%x",
2152 dev->net->name, reg, *vp);
2153 }
2154 kfree (vp);
2155}
2156#endif
2157
2158
2159/*-------------------------------------------------------------------------*/
2160
2161/*
2162 * Control register
2163 */
2164
2165#define USBCTL_WRITABLE_MASK 0x1f0f
2166// bits 15-13 reserved, r/o
2167#define USBCTL_ENABLE_LANG (1 << 12)
2168#define USBCTL_ENABLE_MFGR (1 << 11)
2169#define USBCTL_ENABLE_PROD (1 << 10)
2170#define USBCTL_ENABLE_SERIAL (1 << 9)
2171#define USBCTL_ENABLE_DEFAULTS (1 << 8)
2172// bits 7-4 reserved, r/o
2173#define USBCTL_FLUSH_OTHER (1 << 3)
2174#define USBCTL_FLUSH_THIS (1 << 2)
2175#define USBCTL_DISCONN_OTHER (1 << 1)
2176#define USBCTL_DISCONN_THIS (1 << 0)
2177
2178static inline void nc_dump_usbctl (struct usbnet *dev, u16 usbctl)
2179{
2180 if (!netif_msg_link (dev))
2181 return;
2182 devdbg (dev, "net1080 %s-%s usbctl 0x%x:%s%s%s%s%s;"
2183 " this%s%s;"
2184 " other%s%s; r/o 0x%x",
2185 dev->udev->bus->bus_name, dev->udev->devpath,
2186 usbctl,
2187 (usbctl & USBCTL_ENABLE_LANG) ? " lang" : "",
2188 (usbctl & USBCTL_ENABLE_MFGR) ? " mfgr" : "",
2189 (usbctl & USBCTL_ENABLE_PROD) ? " prod" : "",
2190 (usbctl & USBCTL_ENABLE_SERIAL) ? " serial" : "",
2191 (usbctl & USBCTL_ENABLE_DEFAULTS) ? " defaults" : "",
2192
2193 (usbctl & USBCTL_FLUSH_OTHER) ? " FLUSH" : "",
2194 (usbctl & USBCTL_DISCONN_OTHER) ? " DIS" : "",
2195 (usbctl & USBCTL_FLUSH_THIS) ? " FLUSH" : "",
2196 (usbctl & USBCTL_DISCONN_THIS) ? " DIS" : "",
2197 usbctl & ~USBCTL_WRITABLE_MASK
2198 );
2199}
2200
2201/*-------------------------------------------------------------------------*/
2202
2203/*
2204 * Status register
2205 */
2206
2207#define STATUS_PORT_A (1 << 15)
2208
2209#define STATUS_CONN_OTHER (1 << 14)
2210#define STATUS_SUSPEND_OTHER (1 << 13)
2211#define STATUS_MAILBOX_OTHER (1 << 12)
2212#define STATUS_PACKETS_OTHER(n) (((n) >> 8) && 0x03)
2213
2214#define STATUS_CONN_THIS (1 << 6)
2215#define STATUS_SUSPEND_THIS (1 << 5)
2216#define STATUS_MAILBOX_THIS (1 << 4)
2217#define STATUS_PACKETS_THIS(n) (((n) >> 0) && 0x03)
2218
2219#define STATUS_UNSPEC_MASK 0x0c8c
2220#define STATUS_NOISE_MASK ((u16)~(0x0303|STATUS_UNSPEC_MASK))
2221
2222
2223static inline void nc_dump_status (struct usbnet *dev, u16 status)
2224{
2225 if (!netif_msg_link (dev))
2226 return;
2227 devdbg (dev, "net1080 %s-%s status 0x%x:"
2228 " this (%c) PKT=%d%s%s%s;"
2229 " other PKT=%d%s%s%s; unspec 0x%x",
2230 dev->udev->bus->bus_name, dev->udev->devpath,
2231 status,
2232
2233 // XXX the packet counts don't seem right
2234 // (1 at reset, not 0); maybe UNSPEC too
2235
2236 (status & STATUS_PORT_A) ? 'A' : 'B',
2237 STATUS_PACKETS_THIS (status),
2238 (status & STATUS_CONN_THIS) ? " CON" : "",
2239 (status & STATUS_SUSPEND_THIS) ? " SUS" : "",
2240 (status & STATUS_MAILBOX_THIS) ? " MBOX" : "",
2241
2242 STATUS_PACKETS_OTHER (status),
2243 (status & STATUS_CONN_OTHER) ? " CON" : "",
2244 (status & STATUS_SUSPEND_OTHER) ? " SUS" : "",
2245 (status & STATUS_MAILBOX_OTHER) ? " MBOX" : "",
2246
2247 status & STATUS_UNSPEC_MASK
2248 );
2249}
2250
2251/*-------------------------------------------------------------------------*/
2252
2253/*
2254 * TTL register
2255 */
2256
2257#define TTL_THIS(ttl) (0x00ff & ttl)
2258#define TTL_OTHER(ttl) (0x00ff & (ttl >> 8))
2259#define MK_TTL(this,other) ((u16)(((other)<<8)|(0x00ff&(this))))
2260
2261static inline void nc_dump_ttl (struct usbnet *dev, u16 ttl)
2262{
2263 if (netif_msg_link (dev))
2264 devdbg (dev, "net1080 %s-%s ttl 0x%x this = %d, other = %d",
2265 dev->udev->bus->bus_name, dev->udev->devpath,
2266 ttl, TTL_THIS (ttl), TTL_OTHER (ttl));
2267}
2268
2269/*-------------------------------------------------------------------------*/
2270
2271static int net1080_reset (struct usbnet *dev)
2272{
2273 u16 usbctl, status, ttl;
2274 u16 *vp = kmalloc (sizeof (u16), GFP_KERNEL);
2275 int retval;
2276
2277 if (!vp)
2278 return -ENOMEM;
2279
2280 // nc_dump_registers (dev);
2281
2282 if ((retval = nc_register_read (dev, REG_STATUS, vp)) < 0) {
2283 dbg ("can't read %s-%s status: %d",
2284 dev->udev->bus->bus_name, dev->udev->devpath, retval);
2285 goto done;
2286 }
2287 status = *vp;
2288 nc_dump_status (dev, status);
2289
2290 if ((retval = nc_register_read (dev, REG_USBCTL, vp)) < 0) {
2291 dbg ("can't read USBCTL, %d", retval);
2292 goto done;
2293 }
2294 usbctl = *vp;
2295 nc_dump_usbctl (dev, usbctl);
2296
2297 nc_register_write (dev, REG_USBCTL,
2298 USBCTL_FLUSH_THIS | USBCTL_FLUSH_OTHER);
2299
2300 if ((retval = nc_register_read (dev, REG_TTL, vp)) < 0) {
2301 dbg ("can't read TTL, %d", retval);
2302 goto done;
2303 }
2304 ttl = *vp;
2305 // nc_dump_ttl (dev, ttl);
2306
2307 nc_register_write (dev, REG_TTL,
2308 MK_TTL (NC_READ_TTL_MS, TTL_OTHER (ttl)) );
2309 dbg ("%s: assigned TTL, %d ms", dev->net->name, NC_READ_TTL_MS);
2310
2311 if (netif_msg_link (dev))
2312 devinfo (dev, "port %c, peer %sconnected",
2313 (status & STATUS_PORT_A) ? 'A' : 'B',
2314 (status & STATUS_CONN_OTHER) ? "" : "dis"
2315 );
2316 retval = 0;
2317
2318done:
2319 kfree (vp);
2320 return retval;
2321}
2322
2323static int net1080_check_connect (struct usbnet *dev)
2324{
2325 int retval;
2326 u16 status;
2327 u16 *vp = kmalloc (sizeof (u16), GFP_KERNEL);
2328
2329 if (!vp)
2330 return -ENOMEM;
2331 retval = nc_register_read (dev, REG_STATUS, vp);
2332 status = *vp;
2333 kfree (vp);
2334 if (retval != 0) {
2335 dbg ("%s net1080_check_conn read - %d", dev->net->name, retval);
2336 return retval;
2337 }
2338 if ((status & STATUS_CONN_OTHER) != STATUS_CONN_OTHER)
2339 return -ENOLINK;
2340 return 0;
2341}
2342
2343static void nc_flush_complete (struct urb *urb, struct pt_regs *regs)
2344{
2345 kfree (urb->context);
2346 usb_free_urb(urb);
2347}
2348
2349static void nc_ensure_sync (struct usbnet *dev)
2350{
2351 dev->frame_errors++;
2352 if (dev->frame_errors > 5) {
2353 struct urb *urb;
2354 struct usb_ctrlrequest *req;
2355 int status;
2356
2357 /* Send a flush */
2358 urb = usb_alloc_urb (0, SLAB_ATOMIC);
2359 if (!urb)
2360 return;
2361
2362 req = kmalloc (sizeof *req, GFP_ATOMIC);
2363 if (!req) {
2364 usb_free_urb (urb);
2365 return;
2366 }
2367
2368 req->bRequestType = USB_DIR_OUT
2369 | USB_TYPE_VENDOR
2370 | USB_RECIP_DEVICE;
2371 req->bRequest = REQUEST_REGISTER;
2372 req->wValue = cpu_to_le16 (USBCTL_FLUSH_THIS
2373 | USBCTL_FLUSH_OTHER);
2374 req->wIndex = cpu_to_le16 (REG_USBCTL);
2375 req->wLength = cpu_to_le16 (0);
2376
2377 /* queue an async control request, we don't need
2378 * to do anything when it finishes except clean up.
2379 */
2380 usb_fill_control_urb (urb, dev->udev,
2381 usb_sndctrlpipe (dev->udev, 0),
2382 (unsigned char *) req,
2383 NULL, 0,
2384 nc_flush_complete, req);
2385 status = usb_submit_urb (urb, GFP_ATOMIC);
2386 if (status) {
2387 kfree (req);
2388 usb_free_urb (urb);
2389 return;
2390 }
2391
2392 if (netif_msg_rx_err (dev))
2393 devdbg (dev, "flush net1080; too many framing errors");
2394 dev->frame_errors = 0;
2395 }
2396}
2397
2398static int net1080_rx_fixup (struct usbnet *dev, struct sk_buff *skb)
2399{
2400 struct nc_header *header;
2401 struct nc_trailer *trailer;
2402 u16 hdr_len, packet_len;
2403
2404 if (!(skb->len & 0x01)
2405 || MIN_FRAMED > skb->len
2406 || skb->len > FRAMED_SIZE (dev->net->mtu)) {
2407 dev->stats.rx_frame_errors++;
2408 dbg ("rx framesize %d range %d..%d mtu %d", skb->len,
2409 (int)MIN_FRAMED, (int)FRAMED_SIZE (dev->net->mtu),
2410 dev->net->mtu);
2411 nc_ensure_sync (dev);
2412 return 0;
2413 }
2414
2415 header = (struct nc_header *) skb->data;
2416 hdr_len = le16_to_cpup (&header->hdr_len);
2417 packet_len = le16_to_cpup (&header->packet_len);
2418 if (FRAMED_SIZE (packet_len) > MAX_PACKET) {
2419 dev->stats.rx_frame_errors++;
2420 dbg ("packet too big, %d", packet_len);
2421 nc_ensure_sync (dev);
2422 return 0;
2423 } else if (hdr_len < MIN_HEADER) {
2424 dev->stats.rx_frame_errors++;
2425 dbg ("header too short, %d", hdr_len);
2426 nc_ensure_sync (dev);
2427 return 0;
2428 } else if (hdr_len > MIN_HEADER) {
2429 // out of band data for us?
2430 dbg ("header OOB, %d bytes", hdr_len - MIN_HEADER);
2431 nc_ensure_sync (dev);
2432 // switch (vendor/product ids) { ... }
2433 }
2434 skb_pull (skb, hdr_len);
2435
2436 trailer = (struct nc_trailer *)
2437 (skb->data + skb->len - sizeof *trailer);
2438 skb_trim (skb, skb->len - sizeof *trailer);
2439
2440 if ((packet_len & 0x01) == 0) {
2441 if (skb->data [packet_len] != PAD_BYTE) {
2442 dev->stats.rx_frame_errors++;
2443 dbg ("bad pad");
2444 return 0;
2445 }
2446 skb_trim (skb, skb->len - 1);
2447 }
2448 if (skb->len != packet_len) {
2449 dev->stats.rx_frame_errors++;
2450 dbg ("bad packet len %d (expected %d)",
2451 skb->len, packet_len);
2452 nc_ensure_sync (dev);
2453 return 0;
2454 }
2455 if (header->packet_id != get_unaligned (&trailer->packet_id)) {
2456 dev->stats.rx_fifo_errors++;
2457 dbg ("(2+ dropped) rx packet_id mismatch 0x%x 0x%x",
2458 le16_to_cpu (header->packet_id),
2459 le16_to_cpu (trailer->packet_id));
2460 return 0;
2461 }
2462#if 0
2463 devdbg (dev, "frame <rx h %d p %d id %d", header->hdr_len,
2464 header->packet_len, header->packet_id);
2465#endif
2466 dev->frame_errors = 0;
2467 return 1;
2468}
2469
2470static struct sk_buff *
2471net1080_tx_fixup (struct usbnet *dev, struct sk_buff *skb, int flags)
2472{
2473 int padlen;
2474 struct sk_buff *skb2;
2475
2476 padlen = ((skb->len + sizeof (struct nc_header)
2477 + sizeof (struct nc_trailer)) & 0x01) ? 0 : 1;
2478 if (!skb_cloned (skb)) {
2479 int headroom = skb_headroom (skb);
2480 int tailroom = skb_tailroom (skb);
2481
2482 if ((padlen + sizeof (struct nc_trailer)) <= tailroom
2483 && sizeof (struct nc_header) <= headroom)
2484 /* There's enough head and tail room */
2485 return skb;
2486
2487 if ((sizeof (struct nc_header) + padlen
2488 + sizeof (struct nc_trailer)) <
2489 (headroom + tailroom)) {
2490 /* There's enough total room, so just readjust */
2491 skb->data = memmove (skb->head
2492 + sizeof (struct nc_header),
2493 skb->data, skb->len);
2494 skb->tail = skb->data + skb->len;
2495 return skb;
2496 }
2497 }
2498
2499 /* Create a new skb to use with the correct size */
2500 skb2 = skb_copy_expand (skb,
2501 sizeof (struct nc_header),
2502 sizeof (struct nc_trailer) + padlen,
2503 flags);
2504 dev_kfree_skb_any (skb);
2505 return skb2;
2506}
2507
2508static const struct driver_info net1080_info = {
2509 .description = "NetChip TurboCONNECT",
2510 .flags = FLAG_FRAMING_NC,
2511 .reset = net1080_reset,
2512 .check_connect =net1080_check_connect,
2513 .rx_fixup = net1080_rx_fixup,
2514 .tx_fixup = net1080_tx_fixup,
2515};
2516
2517#endif /* CONFIG_USB_NET1080 */
2518
2519
2520
2521#ifdef CONFIG_USB_PL2301
2522#define HAVE_HARDWARE
2523
2524/*-------------------------------------------------------------------------
2525 *
2526 * Prolific PL-2301/PL-2302 driver ... http://www.prolifictech.com
2527 *
2528 * The protocol and handshaking used here should be bug-compatible
2529 * with the Linux 2.2 "plusb" driver, by Deti Fliegl.
2530 *
2531 *-------------------------------------------------------------------------*/
2532
2533/*
2534 * Bits 0-4 can be used for software handshaking; they're set from
2535 * one end, cleared from the other, "read" with the interrupt byte.
2536 */
2537#define PL_S_EN (1<<7) /* (feature only) suspend enable */
2538/* reserved bit -- rx ready (6) ? */
2539#define PL_TX_READY (1<<5) /* (interrupt only) transmit ready */
2540#define PL_RESET_OUT (1<<4) /* reset output pipe */
2541#define PL_RESET_IN (1<<3) /* reset input pipe */
2542#define PL_TX_C (1<<2) /* transmission complete */
2543#define PL_TX_REQ (1<<1) /* transmission received */
2544#define PL_PEER_E (1<<0) /* peer exists */
2545
2546static inline int
2547pl_vendor_req (struct usbnet *dev, u8 req, u8 val, u8 index)
2548{
2549 return usb_control_msg (dev->udev,
2550 usb_rcvctrlpipe (dev->udev, 0),
2551 req,
2552 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
2553 val, index,
2554 NULL, 0,
2555 CONTROL_TIMEOUT_MS);
2556}
2557
2558static inline int
2559pl_clear_QuickLink_features (struct usbnet *dev, int val)
2560{
2561 return pl_vendor_req (dev, 1, (u8) val, 0);
2562}
2563
2564static inline int
2565pl_set_QuickLink_features (struct usbnet *dev, int val)
2566{
2567 return pl_vendor_req (dev, 3, (u8) val, 0);
2568}
2569
2570/*-------------------------------------------------------------------------*/
2571
2572static int pl_reset (struct usbnet *dev)
2573{
2574 /* some units seem to need this reset, others reject it utterly.
2575 * FIXME be more like "naplink" or windows drivers.
2576 */
2577 (void) pl_set_QuickLink_features (dev,
2578 PL_S_EN|PL_RESET_OUT|PL_RESET_IN|PL_PEER_E);
2579 return 0;
2580}
2581
2582static const struct driver_info prolific_info = {
2583 .description = "Prolific PL-2301/PL-2302",
2584 .flags = FLAG_NO_SETINT,
2585 /* some PL-2302 versions seem to fail usb_set_interface() */
2586 .reset = pl_reset,
2587};
2588
2589#endif /* CONFIG_USB_PL2301 */
2590
2591
2592#ifdef CONFIG_USB_KC2190
2593#define HAVE_HARDWARE
2594static const struct driver_info kc2190_info = {
2595 .description = "KC Technology KC-190",
2596};
2597#endif /* CONFIG_USB_KC2190 */
2598
2599
2600#ifdef CONFIG_USB_ARMLINUX
2601#define HAVE_HARDWARE
2602
2603/*-------------------------------------------------------------------------
2604 *
2605 * Intel's SA-1100 chip integrates basic USB support, and is used
2606 * in PDAs like some iPaqs, the Yopy, some Zaurus models, and more.
2607 * When they run Linux, arch/arm/mach-sa1100/usb-eth.c may be used to
2608 * network using minimal USB framing data.
2609 *
2610 * This describes the driver currently in standard ARM Linux kernels.
2611 * The Zaurus uses a different driver (see later).
2612 *
2613 * PXA25x and PXA210 use XScale cores (ARM v5TE) with better USB support
2614 * and different USB endpoint numbering than the SA1100 devices. The
2615 * mach-pxa/usb-eth.c driver re-uses the device ids from mach-sa1100
2616 * so we rely on the endpoint descriptors.
2617 *
2618 *-------------------------------------------------------------------------*/
2619
2620static const struct driver_info linuxdev_info = {
2621 .description = "Linux Device",
2622 .check_connect = always_connected,
2623};
2624
2625static const struct driver_info yopy_info = {
2626 .description = "Yopy",
2627 .check_connect = always_connected,
2628};
2629
2630static const struct driver_info blob_info = {
2631 .description = "Boot Loader OBject",
2632 .check_connect = always_connected,
2633};
2634
2635#endif /* CONFIG_USB_ARMLINUX */
2636
2637
2638#ifdef CONFIG_USB_ZAURUS
2639#define HAVE_HARDWARE
2640
2641#include <linux/crc32.h>
2642
2643/*-------------------------------------------------------------------------
2644 *
2645 * Zaurus is also a SA-1110 based PDA, but one using a different driver
2646 * (and framing) for its USB slave/gadget controller than the case above.
2647 *
2648 * For the current version of that driver, the main way that framing is
2649 * nonstandard (also from perspective of the CDC ethernet model!) is a
2650 * crc32, added to help detect when some sa1100 usb-to-memory DMA errata
2651 * haven't been fully worked around. Also, all Zaurii use the same
2652 * default Ethernet address.
2653 *
2654 * PXA based models use the same framing, and also can't implement
2655 * set_interface properly.
2656 *
2657 * All known Zaurii lie about their standards conformance. Most lie by
2658 * saying they support CDC Ethernet. Some lie and say they support CDC
2659 * MDLM (as if for access to cell phone modems). Someone, please beat
2660 * on Sharp (and other such vendors) for a while with a cluestick.
2661 *
2662 *-------------------------------------------------------------------------*/
2663
2664static struct sk_buff *
2665zaurus_tx_fixup (struct usbnet *dev, struct sk_buff *skb, int flags)
2666{
2667 int padlen;
2668 struct sk_buff *skb2;
2669
2670 padlen = 2;
2671 if (!skb_cloned (skb)) {
2672 int tailroom = skb_tailroom (skb);
2673 if ((padlen + 4) <= tailroom)
2674 goto done;
2675 }
2676 skb2 = skb_copy_expand (skb, 0, 4 + padlen, flags);
2677 dev_kfree_skb_any (skb);
2678 skb = skb2;
2679 if (skb) {
2680 u32 fcs;
2681done:
2682 fcs = crc32_le (~0, skb->data, skb->len);
2683 fcs = ~fcs;
2684
2685 *skb_put (skb, 1) = fcs & 0xff;
2686 *skb_put (skb, 1) = (fcs>> 8) & 0xff;
2687 *skb_put (skb, 1) = (fcs>>16) & 0xff;
2688 *skb_put (skb, 1) = (fcs>>24) & 0xff;
2689 }
2690 return skb;
2691}
2692
2693static const struct driver_info zaurus_sl5x00_info = {
2694 .description = "Sharp Zaurus SL-5x00",
2695 .flags = FLAG_FRAMING_Z,
2696 .check_connect = always_connected,
2697 .bind = generic_cdc_bind,
2698 .unbind = cdc_unbind,
2699 .tx_fixup = zaurus_tx_fixup,
2700};
2701#define ZAURUS_STRONGARM_INFO ((unsigned long)&zaurus_sl5x00_info)
2702
2703static const struct driver_info zaurus_pxa_info = {
2704 .description = "Sharp Zaurus, PXA-2xx based",
2705 .flags = FLAG_FRAMING_Z,
2706 .check_connect = always_connected,
2707 .bind = generic_cdc_bind,
2708 .unbind = cdc_unbind,
2709 .tx_fixup = zaurus_tx_fixup,
2710};
2711#define ZAURUS_PXA_INFO ((unsigned long)&zaurus_pxa_info)
2712
2713static const struct driver_info olympus_mxl_info = {
2714 .description = "Olympus R1000",
2715 .flags = FLAG_FRAMING_Z,
2716 .check_connect = always_connected,
2717 .bind = generic_cdc_bind,
2718 .unbind = cdc_unbind,
2719 .tx_fixup = zaurus_tx_fixup,
2720};
2721#define OLYMPUS_MXL_INFO ((unsigned long)&olympus_mxl_info)
2722
2723
2724/* Some more recent products using Lineo/Belcarra code will wrongly claim
2725 * CDC MDLM conformance. They aren't conformant: data endpoints live
2726 * in the control interface, there's no data interface, and it's not used
2727 * to talk to a cell phone radio. But at least we can detect these two
2728 * pseudo-classes, rather than growing this product list with entries for
2729 * each new nonconformant product (sigh).
2730 */
2731static const u8 safe_guid[16] = {
2732 0x5d, 0x34, 0xcf, 0x66, 0x11, 0x18, 0x11, 0xd6,
2733 0xa2, 0x1a, 0x00, 0x01, 0x02, 0xca, 0x9a, 0x7f,
2734};
2735static const u8 blan_guid[16] = {
2736 0x74, 0xf0, 0x3d, 0xbd, 0x1e, 0xc1, 0x44, 0x70,
2737 0xa3, 0x67, 0x71, 0x34, 0xc9, 0xf5, 0x54, 0x37,
2738};
2739
2740static int blan_mdlm_bind (struct usbnet *dev, struct usb_interface *intf)
2741{
2742 u8 *buf = intf->cur_altsetting->extra;
2743 int len = intf->cur_altsetting->extralen;
2744 struct usb_cdc_mdlm_desc *desc = NULL;
2745 struct usb_cdc_mdlm_detail_desc *detail = NULL;
2746
2747 while (len > 3) {
2748 if (buf [1] != USB_DT_CS_INTERFACE)
2749 goto next_desc;
2750
2751 /* use bDescriptorSubType, and just verify that we get a
2752 * "BLAN" (or "SAFE") descriptor.
2753 */
2754 switch (buf [2]) {
2755 case USB_CDC_MDLM_TYPE:
2756 if (desc) {
2757 dev_dbg (&intf->dev, "extra MDLM\n");
2758 goto bad_desc;
2759 }
2760 desc = (void *) buf;
2761 if (desc->bLength != sizeof *desc) {
2762 dev_dbg (&intf->dev, "MDLM len %u\n",
2763 desc->bLength);
2764 goto bad_desc;
2765 }
2766 /* expect bcdVersion 1.0, ignore */
2767 if (memcmp(&desc->bGUID, blan_guid, 16)
2768 && memcmp(&desc->bGUID, safe_guid, 16) ) {
2769 /* hey, this one might _really_ be MDLM! */
2770 dev_dbg (&intf->dev, "MDLM guid\n");
2771 goto bad_desc;
2772 }
2773 break;
2774 case USB_CDC_MDLM_DETAIL_TYPE:
2775 if (detail) {
2776 dev_dbg (&intf->dev, "extra MDLM detail\n");
2777 goto bad_desc;
2778 }
2779 detail = (void *) buf;
2780 switch (detail->bGuidDescriptorType) {
2781 case 0: /* "SAFE" */
2782 if (detail->bLength != (sizeof *detail + 2))
2783 goto bad_detail;
2784 break;
2785 case 1: /* "BLAN" */
2786 if (detail->bLength != (sizeof *detail + 3))
2787 goto bad_detail;
2788 break;
2789 default:
2790 goto bad_detail;
2791 }
2792
2793 /* assuming we either noticed BLAN already, or will
2794 * find it soon, there are some data bytes here:
2795 * - bmNetworkCapabilities (unused)
2796 * - bmDataCapabilities (bits, see below)
2797 * - bPad (ignored, for PADAFTER -- BLAN-only)
2798 * bits are:
2799 * - 0x01 -- Zaurus framing (add CRC)
2800 * - 0x02 -- PADBEFORE (CRC includes some padding)
2801 * - 0x04 -- PADAFTER (some padding after CRC)
2802 * - 0x08 -- "fermat" packet mangling (for hw bugs)
2803 * the PADBEFORE appears not to matter; we interop
2804 * with devices that use it and those that don't.
2805 */
2806 if ((detail->bDetailData[1] & ~02) != 0x01) {
2807 /* bmDataCapabilites == 0 would be fine too,
2808 * but framing is minidriver-coupled for now.
2809 */
2810bad_detail:
2811 dev_dbg (&intf->dev,
2812 "bad MDLM detail, %d %d %d\n",
2813 detail->bLength,
2814 detail->bDetailData[0],
2815 detail->bDetailData[2]);
2816 goto bad_desc;
2817 }
2818 break;
2819 }
2820next_desc:
2821 len -= buf [0]; /* bLength */
2822 buf += buf [0];
2823 }
2824
2825 if (!desc || !detail) {
2826 dev_dbg (&intf->dev, "missing cdc mdlm %s%sdescriptor\n",
2827 desc ? "" : "func ",
2828 detail ? "" : "detail ");
2829 goto bad_desc;
2830 }
2831
2832 /* There's probably a CDC Ethernet descriptor there, but we can't
2833 * rely on the Ethernet address it provides since not all vendors
2834 * bother to make it unique. Likewise there's no point in tracking
2835 * of the CDC event notifications.
2836 */
2837 return get_endpoints (dev, intf);
2838
2839bad_desc:
2840 dev_info (&dev->udev->dev, "unsupported MDLM descriptors\n");
2841 return -ENODEV;
2842}
2843
2844static const struct driver_info bogus_mdlm_info = {
2845 .description = "pseudo-MDLM (BLAN) device",
2846 .flags = FLAG_FRAMING_Z,
2847 .check_connect = always_connected,
2848 .tx_fixup = zaurus_tx_fixup,
2849 .bind = blan_mdlm_bind,
2850};
2851
2852#else
2853
2854/* blacklist all those devices */
2855#define ZAURUS_STRONGARM_INFO 0
2856#define ZAURUS_PXA_INFO 0
2857#define OLYMPUS_MXL_INFO 0
2858
2859#endif
2860 222
2861 223
2862/*------------------------------------------------------------------------- 224/*-------------------------------------------------------------------------
@@ -2868,22 +230,12 @@ static const struct driver_info bogus_mdlm_info = {
2868static int usbnet_change_mtu (struct net_device *net, int new_mtu) 230static int usbnet_change_mtu (struct net_device *net, int new_mtu)
2869{ 231{
2870 struct usbnet *dev = netdev_priv(net); 232 struct usbnet *dev = netdev_priv(net);
233 int ll_mtu = new_mtu + net->hard_header_len;
2871 234
2872 if (new_mtu <= MIN_PACKET || new_mtu > MAX_PACKET) 235 if (new_mtu <= 0 || ll_mtu > dev->hard_mtu)
2873 return -EINVAL; 236 return -EINVAL;
2874#ifdef CONFIG_USB_NET1080
2875 if (((dev->driver_info->flags) & FLAG_FRAMING_NC)) {
2876 if (FRAMED_SIZE (new_mtu) > MAX_PACKET)
2877 return -EINVAL;
2878 }
2879#endif
2880#ifdef CONFIG_USB_GENESYS
2881 if (((dev->driver_info->flags) & FLAG_FRAMING_GL)
2882 && new_mtu > GL_MAX_PACKET_LEN)
2883 return -EINVAL;
2884#endif
2885 // no second zero-length packet read wanted after mtu-sized packets 237 // no second zero-length packet read wanted after mtu-sized packets
2886 if (((new_mtu + sizeof (struct ethhdr)) % dev->maxpacket) == 0) 238 if ((ll_mtu % dev->maxpacket) == 0)
2887 return -EDOM; 239 return -EDOM;
2888 net->mtu = new_mtu; 240 net->mtu = new_mtu;
2889 return 0; 241 return 0;
@@ -2922,7 +274,7 @@ static void defer_bh(struct usbnet *dev, struct sk_buff *skb, struct sk_buff_hea
2922 * NOTE: annoying asymmetry: if it's active, schedule_work() fails, 274 * NOTE: annoying asymmetry: if it's active, schedule_work() fails,
2923 * but tasklet_schedule() doesn't. hope the failure is rare. 275 * but tasklet_schedule() doesn't. hope the failure is rare.
2924 */ 276 */
2925static void defer_kevent (struct usbnet *dev, int work) 277void usbnet_defer_kevent (struct usbnet *dev, int work)
2926{ 278{
2927 set_bit (work, &dev->flags); 279 set_bit (work, &dev->flags);
2928 if (!schedule_work (&dev->kevent)) 280 if (!schedule_work (&dev->kevent))
@@ -2930,50 +282,24 @@ static void defer_kevent (struct usbnet *dev, int work)
2930 else 282 else
2931 devdbg (dev, "kevent %d scheduled", work); 283 devdbg (dev, "kevent %d scheduled", work);
2932} 284}
285EXPORT_SYMBOL_GPL(usbnet_defer_kevent);
2933 286
2934/*-------------------------------------------------------------------------*/ 287/*-------------------------------------------------------------------------*/
2935 288
2936static void rx_complete (struct urb *urb, struct pt_regs *regs); 289static void rx_complete (struct urb *urb, struct pt_regs *regs);
2937 290
2938static void rx_submit (struct usbnet *dev, struct urb *urb, int flags) 291static void rx_submit (struct usbnet *dev, struct urb *urb, unsigned flags)
2939{ 292{
2940 struct sk_buff *skb; 293 struct sk_buff *skb;
2941 struct skb_data *entry; 294 struct skb_data *entry;
2942 int retval = 0; 295 int retval = 0;
2943 unsigned long lockflags; 296 unsigned long lockflags;
2944 size_t size; 297 size_t size = dev->rx_urb_size;
2945
2946#ifdef CONFIG_USB_NET1080
2947 if (dev->driver_info->flags & FLAG_FRAMING_NC)
2948 size = FRAMED_SIZE (dev->net->mtu);
2949 else
2950#endif
2951#ifdef CONFIG_USB_GENESYS
2952 if (dev->driver_info->flags & FLAG_FRAMING_GL)
2953 size = GL_RCV_BUF_SIZE;
2954 else
2955#endif
2956#ifdef CONFIG_USB_ZAURUS
2957 if (dev->driver_info->flags & FLAG_FRAMING_Z)
2958 size = 6 + (sizeof (struct ethhdr) + dev->net->mtu);
2959 else
2960#endif
2961#ifdef CONFIG_USB_RNDIS
2962 if (dev->driver_info->flags & FLAG_FRAMING_RN)
2963 size = RNDIS_MAX_TRANSFER;
2964 else
2965#endif
2966#ifdef CONFIG_USB_AX8817X
2967 if (dev->driver_info->flags & FLAG_FRAMING_AX)
2968 size = 2048;
2969 else
2970#endif
2971 size = (sizeof (struct ethhdr) + dev->net->mtu);
2972 298
2973 if ((skb = alloc_skb (size + NET_IP_ALIGN, flags)) == NULL) { 299 if ((skb = alloc_skb (size + NET_IP_ALIGN, flags)) == NULL) {
2974 if (netif_msg_rx_err (dev)) 300 if (netif_msg_rx_err (dev))
2975 devdbg (dev, "no rx skb"); 301 devdbg (dev, "no rx skb");
2976 defer_kevent (dev, EVENT_RX_MEMORY); 302 usbnet_defer_kevent (dev, EVENT_RX_MEMORY);
2977 usb_free_urb (urb); 303 usb_free_urb (urb);
2978 return; 304 return;
2979 } 305 }
@@ -2987,7 +313,6 @@ static void rx_submit (struct usbnet *dev, struct urb *urb, int flags)
2987 313
2988 usb_fill_bulk_urb (urb, dev->udev, dev->in, 314 usb_fill_bulk_urb (urb, dev->udev, dev->in,
2989 skb->data, size, rx_complete, skb); 315 skb->data, size, rx_complete, skb);
2990 urb->transfer_flags |= URB_ASYNC_UNLINK;
2991 316
2992 spin_lock_irqsave (&dev->rxq.lock, lockflags); 317 spin_lock_irqsave (&dev->rxq.lock, lockflags);
2993 318
@@ -2996,10 +321,10 @@ static void rx_submit (struct usbnet *dev, struct urb *urb, int flags)
2996 && !test_bit (EVENT_RX_HALT, &dev->flags)) { 321 && !test_bit (EVENT_RX_HALT, &dev->flags)) {
2997 switch (retval = usb_submit_urb (urb, GFP_ATOMIC)){ 322 switch (retval = usb_submit_urb (urb, GFP_ATOMIC)){
2998 case -EPIPE: 323 case -EPIPE:
2999 defer_kevent (dev, EVENT_RX_HALT); 324 usbnet_defer_kevent (dev, EVENT_RX_HALT);
3000 break; 325 break;
3001 case -ENOMEM: 326 case -ENOMEM:
3002 defer_kevent (dev, EVENT_RX_MEMORY); 327 usbnet_defer_kevent (dev, EVENT_RX_MEMORY);
3003 break; 328 break;
3004 case -ENODEV: 329 case -ENODEV:
3005 if (netif_msg_ifdown (dev)) 330 if (netif_msg_ifdown (dev))
@@ -3037,7 +362,7 @@ static inline void rx_process (struct usbnet *dev, struct sk_buff *skb)
3037 // else network stack removes extra byte if we forced a short packet 362 // else network stack removes extra byte if we forced a short packet
3038 363
3039 if (skb->len) 364 if (skb->len)
3040 skb_return (dev, skb); 365 usbnet_skb_return (dev, skb);
3041 else { 366 else {
3042 if (netif_msg_rx_err (dev)) 367 if (netif_msg_rx_err (dev))
3043 devdbg (dev, "drop"); 368 devdbg (dev, "drop");
@@ -3063,7 +388,7 @@ static void rx_complete (struct urb *urb, struct pt_regs *regs)
3063 switch (urb_status) { 388 switch (urb_status) {
3064 // success 389 // success
3065 case 0: 390 case 0:
3066 if (MIN_PACKET > skb->len || skb->len > MAX_PACKET) { 391 if (skb->len < dev->net->hard_header_len) {
3067 entry->state = rx_cleanup; 392 entry->state = rx_cleanup;
3068 dev->stats.rx_errors++; 393 dev->stats.rx_errors++;
3069 dev->stats.rx_length_errors++; 394 dev->stats.rx_length_errors++;
@@ -3078,7 +403,7 @@ static void rx_complete (struct urb *urb, struct pt_regs *regs)
3078 // storm, recovering as needed. 403 // storm, recovering as needed.
3079 case -EPIPE: 404 case -EPIPE:
3080 dev->stats.rx_errors++; 405 dev->stats.rx_errors++;
3081 defer_kevent (dev, EVENT_RX_HALT); 406 usbnet_defer_kevent (dev, EVENT_RX_HALT);
3082 // FALLTHROUGH 407 // FALLTHROUGH
3083 408
3084 // software-driven interface shutdown 409 // software-driven interface shutdown
@@ -3320,55 +645,58 @@ done:
3320 645
3321/*-------------------------------------------------------------------------*/ 646/*-------------------------------------------------------------------------*/
3322 647
3323static void usbnet_get_drvinfo (struct net_device *net, struct ethtool_drvinfo *info) 648/* ethtool methods; minidrivers may need to add some more, but
649 * they'll probably want to use this base set.
650 */
651
652void usbnet_get_drvinfo (struct net_device *net, struct ethtool_drvinfo *info)
3324{ 653{
3325 struct usbnet *dev = netdev_priv(net); 654 struct usbnet *dev = netdev_priv(net);
3326 655
656 /* REVISIT don't always return "usbnet" */
3327 strncpy (info->driver, driver_name, sizeof info->driver); 657 strncpy (info->driver, driver_name, sizeof info->driver);
3328 strncpy (info->version, DRIVER_VERSION, sizeof info->version); 658 strncpy (info->version, DRIVER_VERSION, sizeof info->version);
3329 strncpy (info->fw_version, dev->driver_info->description, 659 strncpy (info->fw_version, dev->driver_info->description,
3330 sizeof info->fw_version); 660 sizeof info->fw_version);
3331 usb_make_path (dev->udev, info->bus_info, sizeof info->bus_info); 661 usb_make_path (dev->udev, info->bus_info, sizeof info->bus_info);
3332} 662}
663EXPORT_SYMBOL_GPL(usbnet_get_drvinfo);
3333 664
3334static u32 usbnet_get_link (struct net_device *net) 665static u32 usbnet_get_link (struct net_device *net)
3335{ 666{
3336 struct usbnet *dev = netdev_priv(net); 667 struct usbnet *dev = netdev_priv(net);
3337 668
3338 /* If a check_connect is defined, return it's results */ 669 /* If a check_connect is defined, return its result */
3339 if (dev->driver_info->check_connect) 670 if (dev->driver_info->check_connect)
3340 return dev->driver_info->check_connect (dev) == 0; 671 return dev->driver_info->check_connect (dev) == 0;
3341 672
3342 /* Otherwise, we're up to avoid breaking scripts */ 673 /* Otherwise, say we're up (to avoid breaking scripts) */
3343 return 1; 674 return 1;
3344} 675}
3345 676
3346static u32 usbnet_get_msglevel (struct net_device *net) 677u32 usbnet_get_msglevel (struct net_device *net)
3347{ 678{
3348 struct usbnet *dev = netdev_priv(net); 679 struct usbnet *dev = netdev_priv(net);
3349 680
3350 return dev->msg_enable; 681 return dev->msg_enable;
3351} 682}
683EXPORT_SYMBOL_GPL(usbnet_get_msglevel);
3352 684
3353static void usbnet_set_msglevel (struct net_device *net, u32 level) 685void usbnet_set_msglevel (struct net_device *net, u32 level)
3354{ 686{
3355 struct usbnet *dev = netdev_priv(net); 687 struct usbnet *dev = netdev_priv(net);
3356 688
3357 dev->msg_enable = level; 689 dev->msg_enable = level;
3358} 690}
691EXPORT_SYMBOL_GPL(usbnet_set_msglevel);
3359 692
3360static int usbnet_ioctl (struct net_device *net, struct ifreq *rq, int cmd) 693/* drivers may override default ethtool_ops in their bind() routine */
3361{ 694static struct ethtool_ops usbnet_ethtool_ops = {
3362#ifdef NEED_MII 695 .get_drvinfo = usbnet_get_drvinfo,
3363 { 696 .get_link = usbnet_get_link,
3364 struct usbnet *dev = netdev_priv(net); 697 .get_msglevel = usbnet_get_msglevel,
3365 698 .set_msglevel = usbnet_set_msglevel,
3366 if (dev->mii.mdio_read != NULL && dev->mii.mdio_write != NULL) 699};
3367 return generic_mii_ioctl(&dev->mii, if_mii(rq), cmd, NULL);
3368 }
3369#endif
3370 return -EOPNOTSUPP;
3371}
3372 700
3373/*-------------------------------------------------------------------------*/ 701/*-------------------------------------------------------------------------*/
3374 702
@@ -3387,19 +715,24 @@ kevent (void *data)
3387 if (test_bit (EVENT_TX_HALT, &dev->flags)) { 715 if (test_bit (EVENT_TX_HALT, &dev->flags)) {
3388 unlink_urbs (dev, &dev->txq); 716 unlink_urbs (dev, &dev->txq);
3389 status = usb_clear_halt (dev->udev, dev->out); 717 status = usb_clear_halt (dev->udev, dev->out);
3390 if (status < 0 && status != -EPIPE) { 718 if (status < 0
719 && status != -EPIPE
720 && status != -ESHUTDOWN) {
3391 if (netif_msg_tx_err (dev)) 721 if (netif_msg_tx_err (dev))
3392 deverr (dev, "can't clear tx halt, status %d", 722 deverr (dev, "can't clear tx halt, status %d",
3393 status); 723 status);
3394 } else { 724 } else {
3395 clear_bit (EVENT_TX_HALT, &dev->flags); 725 clear_bit (EVENT_TX_HALT, &dev->flags);
3396 netif_wake_queue (dev->net); 726 if (status != -ESHUTDOWN)
727 netif_wake_queue (dev->net);
3397 } 728 }
3398 } 729 }
3399 if (test_bit (EVENT_RX_HALT, &dev->flags)) { 730 if (test_bit (EVENT_RX_HALT, &dev->flags)) {
3400 unlink_urbs (dev, &dev->rxq); 731 unlink_urbs (dev, &dev->rxq);
3401 status = usb_clear_halt (dev->udev, dev->in); 732 status = usb_clear_halt (dev->udev, dev->in);
3402 if (status < 0 && status != -EPIPE) { 733 if (status < 0
734 && status != -EPIPE
735 && status != -ESHUTDOWN) {
3403 if (netif_msg_rx_err (dev)) 736 if (netif_msg_rx_err (dev))
3404 deverr (dev, "can't clear rx halt, status %d", 737 deverr (dev, "can't clear rx halt, status %d",
3405 status); 738 status);
@@ -3458,7 +791,7 @@ static void tx_complete (struct urb *urb, struct pt_regs *regs)
3458 791
3459 switch (urb->status) { 792 switch (urb->status) {
3460 case -EPIPE: 793 case -EPIPE:
3461 defer_kevent (dev, EVENT_TX_HALT); 794 usbnet_defer_kevent (dev, EVENT_TX_HALT);
3462 break; 795 break;
3463 796
3464 /* software-driven interface shutdown */ 797 /* software-driven interface shutdown */
@@ -3515,10 +848,6 @@ static int usbnet_start_xmit (struct sk_buff *skb, struct net_device *net)
3515 struct skb_data *entry; 848 struct skb_data *entry;
3516 struct driver_info *info = dev->driver_info; 849 struct driver_info *info = dev->driver_info;
3517 unsigned long flags; 850 unsigned long flags;
3518#ifdef CONFIG_USB_NET1080
3519 struct nc_header *header = NULL;
3520 struct nc_trailer *trailer = NULL;
3521#endif /* CONFIG_USB_NET1080 */
3522 851
3523 // some devices want funky USB-level framing, for 852 // some devices want funky USB-level framing, for
3524 // win32 driver (usually) and/or hardware quirks 853 // win32 driver (usually) and/or hardware quirks
@@ -3544,24 +873,8 @@ static int usbnet_start_xmit (struct sk_buff *skb, struct net_device *net)
3544 entry->state = tx_start; 873 entry->state = tx_start;
3545 entry->length = length; 874 entry->length = length;
3546 875
3547 // FIXME: reorganize a bit, so that fixup() fills out NetChip
3548 // framing too. (Packet ID update needs the spinlock...)
3549 // [ BETTER: we already own net->xmit_lock, that's enough ]
3550
3551#ifdef CONFIG_USB_NET1080
3552 if (info->flags & FLAG_FRAMING_NC) {
3553 header = (struct nc_header *) skb_push (skb, sizeof *header);
3554 header->hdr_len = cpu_to_le16 (sizeof (*header));
3555 header->packet_len = cpu_to_le16 (length);
3556 if (!((skb->len + sizeof *trailer) & 0x01))
3557 *skb_put (skb, 1) = PAD_BYTE;
3558 trailer = (struct nc_trailer *) skb_put (skb, sizeof *trailer);
3559 }
3560#endif /* CONFIG_USB_NET1080 */
3561
3562 usb_fill_bulk_urb (urb, dev->udev, dev->out, 876 usb_fill_bulk_urb (urb, dev->udev, dev->out,
3563 skb->data, skb->len, tx_complete, skb); 877 skb->data, skb->len, tx_complete, skb);
3564 urb->transfer_flags |= URB_ASYNC_UNLINK;
3565 878
3566 /* don't assume the hardware handles USB_ZERO_PACKET 879 /* don't assume the hardware handles USB_ZERO_PACKET
3567 * NOTE: strictly conforming cdc-ether devices should expect 880 * NOTE: strictly conforming cdc-ether devices should expect
@@ -3574,22 +887,10 @@ static int usbnet_start_xmit (struct sk_buff *skb, struct net_device *net)
3574 887
3575 spin_lock_irqsave (&dev->txq.lock, flags); 888 spin_lock_irqsave (&dev->txq.lock, flags);
3576 889
3577#ifdef CONFIG_USB_NET1080
3578 if (info->flags & FLAG_FRAMING_NC) {
3579 header->packet_id = cpu_to_le16 ((u16)dev->dev_packet_id++);
3580 put_unaligned (header->packet_id, &trailer->packet_id);
3581#if 0
3582 devdbg (dev, "frame >tx h %d p %d id %d",
3583 header->hdr_len, header->packet_len,
3584 header->packet_id);
3585#endif
3586 }
3587#endif /* CONFIG_USB_NET1080 */
3588
3589 switch ((retval = usb_submit_urb (urb, GFP_ATOMIC))) { 890 switch ((retval = usb_submit_urb (urb, GFP_ATOMIC))) {
3590 case -EPIPE: 891 case -EPIPE:
3591 netif_stop_queue (net); 892 netif_stop_queue (net);
3592 defer_kevent (dev, EVENT_TX_HALT); 893 usbnet_defer_kevent (dev, EVENT_TX_HALT);
3593 break; 894 break;
3594 default: 895 default:
3595 if (netif_msg_tx_err (dev)) 896 if (netif_msg_tx_err (dev))
@@ -3692,7 +993,7 @@ static void usbnet_bh (unsigned long param)
3692 993
3693// precondition: never called in_interrupt 994// precondition: never called in_interrupt
3694 995
3695static void usbnet_disconnect (struct usb_interface *intf) 996void usbnet_disconnect (struct usb_interface *intf)
3696{ 997{
3697 struct usbnet *dev; 998 struct usbnet *dev;
3698 struct usb_device *xdev; 999 struct usb_device *xdev;
@@ -3706,7 +1007,8 @@ static void usbnet_disconnect (struct usb_interface *intf)
3706 xdev = interface_to_usbdev (intf); 1007 xdev = interface_to_usbdev (intf);
3707 1008
3708 if (netif_msg_probe (dev)) 1009 if (netif_msg_probe (dev))
3709 devinfo (dev, "unregister usbnet usb-%s-%s, %s", 1010 devinfo (dev, "unregister '%s' usb-%s-%s, %s",
1011 intf->dev.driver->name,
3710 xdev->bus->bus_name, xdev->devpath, 1012 xdev->bus->bus_name, xdev->devpath,
3711 dev->driver_info->description); 1013 dev->driver_info->description);
3712 1014
@@ -3722,15 +1024,14 @@ static void usbnet_disconnect (struct usb_interface *intf)
3722 free_netdev(net); 1024 free_netdev(net);
3723 usb_put_dev (xdev); 1025 usb_put_dev (xdev);
3724} 1026}
1027EXPORT_SYMBOL_GPL(usbnet_disconnect);
3725 1028
3726 1029
3727/*-------------------------------------------------------------------------*/ 1030/*-------------------------------------------------------------------------*/
3728 1031
3729static struct ethtool_ops usbnet_ethtool_ops;
3730
3731// precondition: never called in_interrupt 1032// precondition: never called in_interrupt
3732 1033
3733static int 1034int
3734usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod) 1035usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod)
3735{ 1036{
3736 struct usbnet *dev; 1037 struct usbnet *dev;
@@ -3779,6 +1080,10 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod)
3779 strcpy (net->name, "usb%d"); 1080 strcpy (net->name, "usb%d");
3780 memcpy (net->dev_addr, node_id, sizeof node_id); 1081 memcpy (net->dev_addr, node_id, sizeof node_id);
3781 1082
1083 /* rx and tx sides can use different message sizes;
1084 * bind() should set rx_urb_size in that case.
1085 */
1086 dev->hard_mtu = net->mtu + net->hard_header_len;
3782#if 0 1087#if 0
3783// dma_supported() is deeply broken on almost all architectures 1088// dma_supported() is deeply broken on almost all architectures
3784 // possible with some EHCI controllers 1089 // possible with some EHCI controllers
@@ -3793,7 +1098,6 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod)
3793 net->stop = usbnet_stop; 1098 net->stop = usbnet_stop;
3794 net->watchdog_timeo = TX_TIMEOUT_JIFFIES; 1099 net->watchdog_timeo = TX_TIMEOUT_JIFFIES;
3795 net->tx_timeout = usbnet_tx_timeout; 1100 net->tx_timeout = usbnet_tx_timeout;
3796 net->do_ioctl = usbnet_ioctl;
3797 net->ethtool_ops = &usbnet_ethtool_ops; 1101 net->ethtool_ops = &usbnet_ethtool_ops;
3798 1102
3799 // allow device-specific bind/init procedures 1103 // allow device-specific bind/init procedures
@@ -3806,8 +1110,12 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod)
3806 if ((dev->driver_info->flags & FLAG_ETHER) != 0 1110 if ((dev->driver_info->flags & FLAG_ETHER) != 0
3807 && (net->dev_addr [0] & 0x02) == 0) 1111 && (net->dev_addr [0] & 0x02) == 0)
3808 strcpy (net->name, "eth%d"); 1112 strcpy (net->name, "eth%d");
3809 } else if (!info->in || info->out) 1113
3810 status = get_endpoints (dev, udev); 1114 /* maybe the remote can't receive an Ethernet MTU */
1115 if (net->mtu > (dev->hard_mtu - net->hard_header_len))
1116 net->mtu = dev->hard_mtu - net->hard_header_len;
1117 } else if (!info->in || !info->out)
1118 status = usbnet_get_endpoints (dev, udev);
3811 else { 1119 else {
3812 dev->in = usb_rcvbulkpipe (xdev, info->in); 1120 dev->in = usb_rcvbulkpipe (xdev, info->in);
3813 dev->out = usb_sndbulkpipe (xdev, info->out); 1121 dev->out = usb_sndbulkpipe (xdev, info->out);
@@ -3819,12 +1127,13 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod)
3819 status = 0; 1127 status = 0;
3820 1128
3821 } 1129 }
3822
3823 if (status == 0 && dev->status) 1130 if (status == 0 && dev->status)
3824 status = init_status (dev, udev); 1131 status = init_status (dev, udev);
3825 if (status < 0) 1132 if (status < 0)
3826 goto out1; 1133 goto out1;
3827 1134
1135 if (!dev->rx_urb_size)
1136 dev->rx_urb_size = dev->hard_mtu;
3828 dev->maxpacket = usb_maxpacket (dev->udev, dev->out, 1); 1137 dev->maxpacket = usb_maxpacket (dev->udev, dev->out, 1);
3829 1138
3830 SET_NETDEV_DEV(net, &udev->dev); 1139 SET_NETDEV_DEV(net, &udev->dev);
@@ -3832,8 +1141,9 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod)
3832 if (status) 1141 if (status)
3833 goto out3; 1142 goto out3;
3834 if (netif_msg_probe (dev)) 1143 if (netif_msg_probe (dev))
3835 devinfo (dev, "register usbnet at usb-%s-%s, %s, " 1144 devinfo (dev, "register '%s' at usb-%s-%s, %s, "
3836 "%02x:%02x:%02x:%02x:%02x:%02x", 1145 "%02x:%02x:%02x:%02x:%02x:%02x",
1146 udev->dev.driver->name,
3837 xdev->bus->bus_name, xdev->devpath, 1147 xdev->bus->bus_name, xdev->devpath,
3838 dev->driver_info->description, 1148 dev->driver_info->description,
3839 net->dev_addr [0], net->dev_addr [1], 1149 net->dev_addr [0], net->dev_addr [1],
@@ -3857,12 +1167,15 @@ out:
3857 usb_put_dev(xdev); 1167 usb_put_dev(xdev);
3858 return status; 1168 return status;
3859} 1169}
1170EXPORT_SYMBOL_GPL(usbnet_probe);
3860 1171
3861/*-------------------------------------------------------------------------*/ 1172/*-------------------------------------------------------------------------*/
3862 1173
3863#ifdef CONFIG_PM 1174/* FIXME these suspend/resume methods assume non-CDC style
1175 * devices, with only one interface.
1176 */
3864 1177
3865static int usbnet_suspend (struct usb_interface *intf, pm_message_t message) 1178int usbnet_suspend (struct usb_interface *intf, pm_message_t message)
3866{ 1179{
3867 struct usbnet *dev = usb_get_intfdata(intf); 1180 struct usbnet *dev = usb_get_intfdata(intf);
3868 1181
@@ -3875,8 +1188,9 @@ static int usbnet_suspend (struct usb_interface *intf, pm_message_t message)
3875 intf->dev.power.power_state = PMSG_SUSPEND; 1188 intf->dev.power.power_state = PMSG_SUSPEND;
3876 return 0; 1189 return 0;
3877} 1190}
1191EXPORT_SYMBOL_GPL(usbnet_suspend);
3878 1192
3879static int usbnet_resume (struct usb_interface *intf) 1193int usbnet_resume (struct usb_interface *intf)
3880{ 1194{
3881 struct usbnet *dev = usb_get_intfdata(intf); 1195 struct usbnet *dev = usb_get_intfdata(intf);
3882 1196
@@ -3885,357 +1199,27 @@ static int usbnet_resume (struct usb_interface *intf)
3885 tasklet_schedule (&dev->bh); 1199 tasklet_schedule (&dev->bh);
3886 return 0; 1200 return 0;
3887} 1201}
1202EXPORT_SYMBOL_GPL(usbnet_resume);
3888 1203
3889#else /* !CONFIG_PM */
3890
3891#define usbnet_suspend NULL
3892#define usbnet_resume NULL
3893
3894#endif /* CONFIG_PM */
3895
3896/*-------------------------------------------------------------------------*/
3897
3898#ifndef HAVE_HARDWARE
3899#error You need to configure some hardware for this driver
3900#endif
3901
3902/*
3903 * chip vendor names won't normally be on the cables, and
3904 * may not be on the device.
3905 */
3906
3907static const struct usb_device_id products [] = {
3908
3909#ifdef CONFIG_USB_ALI_M5632
3910{
3911 USB_DEVICE (0x0402, 0x5632), // ALi defaults
3912 .driver_info = (unsigned long) &ali_m5632_info,
3913},
3914#endif
3915
3916#ifdef CONFIG_USB_AN2720
3917{
3918 USB_DEVICE (0x0547, 0x2720), // AnchorChips defaults
3919 .driver_info = (unsigned long) &an2720_info,
3920}, {
3921 USB_DEVICE (0x0547, 0x2727), // Xircom PGUNET
3922 .driver_info = (unsigned long) &an2720_info,
3923},
3924#endif
3925
3926#ifdef CONFIG_USB_BELKIN
3927{
3928 USB_DEVICE (0x050d, 0x0004), // Belkin
3929 .driver_info = (unsigned long) &belkin_info,
3930}, {
3931 USB_DEVICE (0x056c, 0x8100), // eTEK
3932 .driver_info = (unsigned long) &belkin_info,
3933}, {
3934 USB_DEVICE (0x0525, 0x9901), // Advance USBNET (eTEK)
3935 .driver_info = (unsigned long) &belkin_info,
3936},
3937#endif
3938
3939#ifdef CONFIG_USB_AX8817X
3940{
3941 // Linksys USB200M
3942 USB_DEVICE (0x077b, 0x2226),
3943 .driver_info = (unsigned long) &ax8817x_info,
3944}, {
3945 // Netgear FA120
3946 USB_DEVICE (0x0846, 0x1040),
3947 .driver_info = (unsigned long) &netgear_fa120_info,
3948}, {
3949 // DLink DUB-E100
3950 USB_DEVICE (0x2001, 0x1a00),
3951 .driver_info = (unsigned long) &dlink_dub_e100_info,
3952}, {
3953 // Intellinet, ST Lab USB Ethernet
3954 USB_DEVICE (0x0b95, 0x1720),
3955 .driver_info = (unsigned long) &ax8817x_info,
3956}, {
3957 // Hawking UF200, TrendNet TU2-ET100
3958 USB_DEVICE (0x07b8, 0x420a),
3959 .driver_info = (unsigned long) &hawking_uf200_info,
3960}, {
3961 // Billionton Systems, USB2AR
3962 USB_DEVICE (0x08dd, 0x90ff),
3963 .driver_info = (unsigned long) &ax8817x_info,
3964}, {
3965 // ATEN UC210T
3966 USB_DEVICE (0x0557, 0x2009),
3967 .driver_info = (unsigned long) &ax8817x_info,
3968}, {
3969 // Buffalo LUA-U2-KTX
3970 USB_DEVICE (0x0411, 0x003d),
3971 .driver_info = (unsigned long) &ax8817x_info,
3972}, {
3973 // Sitecom LN-029 "USB 2.0 10/100 Ethernet adapter"
3974 USB_DEVICE (0x6189, 0x182d),
3975 .driver_info = (unsigned long) &ax8817x_info,
3976}, {
3977 // corega FEther USB2-TX
3978 USB_DEVICE (0x07aa, 0x0017),
3979 .driver_info = (unsigned long) &ax8817x_info,
3980}, {
3981 // Surecom EP-1427X-2
3982 USB_DEVICE (0x1189, 0x0893),
3983 .driver_info = (unsigned long) &ax8817x_info,
3984}, {
3985 // goodway corp usb gwusb2e
3986 USB_DEVICE (0x1631, 0x6200),
3987 .driver_info = (unsigned long) &ax8817x_info,
3988}, {
3989 // ASIX AX88772 10/100
3990 USB_DEVICE (0x0b95, 0x7720),
3991 .driver_info = (unsigned long) &ax88772_info,
3992},
3993#endif
3994
3995#ifdef CONFIG_USB_EPSON2888
3996{
3997 USB_DEVICE (0x0525, 0x2888), // EPSON USB client
3998 .driver_info = (unsigned long) &epson2888_info,
3999},
4000#endif
4001
4002#ifdef CONFIG_USB_GENESYS
4003{
4004 USB_DEVICE (0x05e3, 0x0502), // GL620USB-A
4005 .driver_info = (unsigned long) &genelink_info,
4006},
4007 /* NOT: USB_DEVICE (0x05e3, 0x0501), // GL620USB
4008 * that's half duplex, not currently supported
4009 */
4010#endif
4011
4012#ifdef CONFIG_USB_NET1080
4013{
4014 USB_DEVICE (0x0525, 0x1080), // NetChip ref design
4015 .driver_info = (unsigned long) &net1080_info,
4016}, {
4017 USB_DEVICE (0x06D0, 0x0622), // Laplink Gold
4018 .driver_info = (unsigned long) &net1080_info,
4019},
4020#endif
4021
4022#ifdef CONFIG_USB_PL2301
4023{
4024 USB_DEVICE (0x067b, 0x0000), // PL-2301
4025 .driver_info = (unsigned long) &prolific_info,
4026}, {
4027 USB_DEVICE (0x067b, 0x0001), // PL-2302
4028 .driver_info = (unsigned long) &prolific_info,
4029},
4030#endif
4031
4032#ifdef CONFIG_USB_KC2190
4033{
4034 USB_DEVICE (0x050f, 0x0190), // KC-190
4035 .driver_info = (unsigned long) &kc2190_info,
4036},
4037#endif
4038
4039#ifdef CONFIG_USB_RNDIS
4040{
4041 /* RNDIS is MSFT's un-official variant of CDC ACM */
4042 USB_INTERFACE_INFO (USB_CLASS_COMM, 2 /* ACM */, 0x0ff),
4043 .driver_info = (unsigned long) &rndis_info,
4044},
4045#endif
4046
4047#ifdef CONFIG_USB_ARMLINUX
4048/*
4049 * SA-1100 using standard ARM Linux kernels, or compatible.
4050 * Often used when talking to Linux PDAs (iPaq, Yopy, etc).
4051 * The sa-1100 "usb-eth" driver handles the basic framing.
4052 *
4053 * PXA25x or PXA210 ... these use a "usb-eth" driver much like
4054 * the sa1100 one, but hardware uses different endpoint numbers.
4055 *
4056 * Or the Linux "Ethernet" gadget on hardware that can't talk
4057 * CDC Ethernet (e.g., no altsettings), in either of two modes:
4058 * - acting just like the old "usb-eth" firmware, though
4059 * the implementation is different
4060 * - supporting RNDIS as the first/default configuration for
4061 * MS-Windows interop; Linux needs to use the other config
4062 */
4063{
4064 // 1183 = 0x049F, both used as hex values?
4065 // Compaq "Itsy" vendor/product id
4066 USB_DEVICE (0x049F, 0x505A), // usb-eth, or compatible
4067 .driver_info = (unsigned long) &linuxdev_info,
4068}, {
4069 USB_DEVICE (0x0E7E, 0x1001), // G.Mate "Yopy"
4070 .driver_info = (unsigned long) &yopy_info,
4071}, {
4072 USB_DEVICE (0x8086, 0x07d3), // "blob" bootloader
4073 .driver_info = (unsigned long) &blob_info,
4074}, {
4075 // Linux Ethernet/RNDIS gadget on pxa210/25x/26x
4076 // e.g. Gumstix, current OpenZaurus, ...
4077 USB_DEVICE_VER (0x0525, 0xa4a2, 0x0203, 0x0203),
4078 .driver_info = (unsigned long) &linuxdev_info,
4079},
4080#endif
4081
4082#if defined(CONFIG_USB_ZAURUS) || defined(CONFIG_USB_CDCETHER)
4083/*
4084 * SA-1100 based Sharp Zaurus ("collie"), or compatible.
4085 * Same idea as above, but different framing.
4086 *
4087 * PXA-2xx based models are also lying-about-cdc.
4088 * Some models don't even tell the same lies ...
4089 *
4090 * NOTE: OpenZaurus versions with 2.6 kernels won't use these entries,
4091 * unlike the older ones with 2.4 "embedix" kernels.
4092 *
4093 * NOTE: These entries do double-duty, serving as blacklist entries
4094 * whenever Zaurus support isn't enabled, but CDC Ethernet is.
4095 */
4096#define ZAURUS_MASTER_INTERFACE \
4097 .bInterfaceClass = USB_CLASS_COMM, \
4098 .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET, \
4099 .bInterfaceProtocol = USB_CDC_PROTO_NONE
4100{
4101 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
4102 | USB_DEVICE_ID_MATCH_DEVICE,
4103 .idVendor = 0x04DD,
4104 .idProduct = 0x8004,
4105 ZAURUS_MASTER_INTERFACE,
4106 .driver_info = ZAURUS_STRONGARM_INFO,
4107}, {
4108 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
4109 | USB_DEVICE_ID_MATCH_DEVICE,
4110 .idVendor = 0x04DD,
4111 .idProduct = 0x8005, /* A-300 */
4112 ZAURUS_MASTER_INTERFACE,
4113 .driver_info = ZAURUS_PXA_INFO,
4114}, {
4115 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
4116 | USB_DEVICE_ID_MATCH_DEVICE,
4117 .idVendor = 0x04DD,
4118 .idProduct = 0x8006, /* B-500/SL-5600 */
4119 ZAURUS_MASTER_INTERFACE,
4120 .driver_info = ZAURUS_PXA_INFO,
4121}, {
4122 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
4123 | USB_DEVICE_ID_MATCH_DEVICE,
4124 .idVendor = 0x04DD,
4125 .idProduct = 0x8007, /* C-700 */
4126 ZAURUS_MASTER_INTERFACE,
4127 .driver_info = ZAURUS_PXA_INFO,
4128}, {
4129 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
4130 | USB_DEVICE_ID_MATCH_DEVICE,
4131 .idVendor = 0x04DD,
4132 .idProduct = 0x9031, /* C-750 C-760 */
4133 ZAURUS_MASTER_INTERFACE,
4134 .driver_info = ZAURUS_PXA_INFO,
4135}, {
4136 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
4137 | USB_DEVICE_ID_MATCH_DEVICE,
4138 .idVendor = 0x04DD,
4139 .idProduct = 0x9032, /* SL-6000 */
4140 ZAURUS_MASTER_INTERFACE,
4141 .driver_info = ZAURUS_PXA_INFO,
4142}, {
4143 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
4144 | USB_DEVICE_ID_MATCH_DEVICE,
4145 .idVendor = 0x04DD,
4146 /* reported with some C860 units */
4147 .idProduct = 0x9050, /* C-860 */
4148 ZAURUS_MASTER_INTERFACE,
4149 .driver_info = ZAURUS_PXA_INFO,
4150},
4151
4152#ifdef CONFIG_USB_ZAURUS
4153 /* At least some (reports vary) PXA units have very different lies
4154 * about their standards support: they claim to be cell phones with
4155 * direct access to their radios. (They don't conform to CDC MDLM.)
4156 */
4157{
4158 USB_INTERFACE_INFO (USB_CLASS_COMM, USB_CDC_SUBCLASS_MDLM,
4159 USB_CDC_PROTO_NONE),
4160 .driver_info = (unsigned long) &bogus_mdlm_info,
4161},
4162#endif
4163
4164/* Olympus has some models with a Zaurus-compatible option.
4165 * R-1000 uses a FreeScale i.MXL cpu (ARMv4T)
4166 */
4167{
4168 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
4169 | USB_DEVICE_ID_MATCH_DEVICE,
4170 .idVendor = 0x07B4,
4171 .idProduct = 0x0F02, /* R-1000 */
4172 ZAURUS_MASTER_INTERFACE,
4173 .driver_info = OLYMPUS_MXL_INFO,
4174},
4175#endif
4176
4177#ifdef CONFIG_USB_CDCETHER
4178{
4179 /* CDC Ether uses two interfaces, not necessarily consecutive.
4180 * We match the main interface, ignoring the optional device
4181 * class so we could handle devices that aren't exclusively
4182 * CDC ether.
4183 *
4184 * NOTE: this match must come AFTER entries working around
4185 * bugs/quirks in a given product (like Zaurus, above).
4186 */
4187 USB_INTERFACE_INFO (USB_CLASS_COMM, USB_CDC_SUBCLASS_ETHERNET,
4188 USB_CDC_PROTO_NONE),
4189 .driver_info = (unsigned long) &cdc_info,
4190},
4191#endif
4192
4193 { }, // END
4194};
4195MODULE_DEVICE_TABLE (usb, products);
4196
4197static struct usb_driver usbnet_driver = {
4198 .owner = THIS_MODULE,
4199 .name = driver_name,
4200 .id_table = products,
4201 .probe = usbnet_probe,
4202 .disconnect = usbnet_disconnect,
4203 .suspend = usbnet_suspend,
4204 .resume = usbnet_resume,
4205};
4206
4207/* Default ethtool_ops assigned. Devices can override in their bind() routine */
4208static struct ethtool_ops usbnet_ethtool_ops = {
4209 .get_drvinfo = usbnet_get_drvinfo,
4210 .get_link = usbnet_get_link,
4211 .get_msglevel = usbnet_get_msglevel,
4212 .set_msglevel = usbnet_set_msglevel,
4213};
4214 1204
4215/*-------------------------------------------------------------------------*/ 1205/*-------------------------------------------------------------------------*/
4216 1206
4217static int __init usbnet_init (void) 1207static int __init usbnet_init(void)
4218{ 1208{
4219 // compiler should optimize these out 1209 /* compiler should optimize this out */
4220 BUG_ON (sizeof (((struct sk_buff *)0)->cb) 1210 BUG_ON (sizeof (((struct sk_buff *)0)->cb)
4221 < sizeof (struct skb_data)); 1211 < sizeof (struct skb_data));
4222#ifdef CONFIG_USB_CDCETHER
4223 BUG_ON ((sizeof (((struct usbnet *)0)->data)
4224 < sizeof (struct cdc_state)));
4225#endif
4226 1212
4227 random_ether_addr(node_id); 1213 random_ether_addr(node_id);
4228 1214 return 0;
4229 return usb_register(&usbnet_driver);
4230} 1215}
4231module_init (usbnet_init); 1216module_init(usbnet_init);
4232 1217
4233static void __exit usbnet_exit (void) 1218static void __exit usbnet_exit(void)
4234{ 1219{
4235 usb_deregister (&usbnet_driver);
4236} 1220}
4237module_exit (usbnet_exit); 1221module_exit(usbnet_exit);
4238 1222
4239MODULE_AUTHOR ("David Brownell <dbrownell@users.sourceforge.net>"); 1223MODULE_AUTHOR("David Brownell");
4240MODULE_DESCRIPTION ("USB Host-to-Host Link Drivers (numerous vendors)"); 1224MODULE_DESCRIPTION("USB network driver framework");
4241MODULE_LICENSE ("GPL"); 1225MODULE_LICENSE("GPL");
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-21 08:17:10 -0500