1 |
/* |
2 |
* USB Orinoco driver |
3 |
* |
4 |
* Copyright (c) 2003 Manuel Estrada Sainz <ranty@debian.org> |
5 |
* |
6 |
* The contents of this file are subject to the Mozilla Public License |
7 |
* Version 1.1 (the "License"); you may not use this file except in |
8 |
* compliance with the License. You may obtain a copy of the License |
9 |
* at http://www.mozilla.org/MPL/ |
10 |
* |
11 |
* Software distributed under the License is distributed on an "AS IS" |
12 |
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See |
13 |
* the License for the specific language governing rights and |
14 |
* limitations under the License. |
15 |
* |
16 |
* Alternatively, the contents of this file may be used under the |
17 |
* terms of the GNU General Public License version 2 (the "GPL"), in |
18 |
* which case the provisions of the GPL are applicable instead of the |
19 |
* above. If you wish to allow the use of your version of this file |
20 |
* only under the terms of the GPL and not to allow others to use your |
21 |
* version of this file under the MPL, indicate your decision by |
22 |
* deleting the provisions above and replace them with the notice and |
23 |
* other provisions required by the GPL. If you do not delete the |
24 |
* provisions above, a recipient may use your version of this file |
25 |
* under either the MPL or the GPL. |
26 |
* |
27 |
* Queueing code based on linux-wlan-ng 0.2.1-pre5 |
28 |
* |
29 |
* Copyright (C) 1999 AbsoluteValue Systems, Inc. All Rights Reserved. |
30 |
* |
31 |
* The license is the same as above. |
32 |
* |
33 |
* Initialy based on USB Skeleton driver - 0.7 |
34 |
* |
35 |
* Copyright (c) 2001 Greg Kroah-Hartman (greg@kroah.com) |
36 |
* |
37 |
* This program is free software; you can redistribute it and/or |
38 |
* modify it under the terms of the GNU General Public License as |
39 |
* published by the Free Software Foundation; either version 2 of |
40 |
* the License, or (at your option) any later version. |
41 |
* |
42 |
* NOTE: The original USB Skeleton driver is GPL, but all that code is |
43 |
* gone so MPL/GPL applies. |
44 |
*/ |
45 |
|
46 |
#define DRIVER_NAME "orinoco_usb" |
47 |
#define PFX DRIVER_NAME ": " |
48 |
|
49 |
#include <linux/config.h> |
50 |
#include <linux/module.h> |
51 |
#include <linux/kernel.h> |
52 |
#include <linux/sched.h> |
53 |
#include <linux/signal.h> |
54 |
#include <linux/errno.h> |
55 |
#include <linux/poll.h> |
56 |
#include <linux/init.h> |
57 |
#include <linux/slab.h> |
58 |
#include <linux/fcntl.h> |
59 |
#include <linux/module.h> |
60 |
#include <linux/spinlock.h> |
61 |
#include <linux/list.h> |
62 |
#include <linux/smp_lock.h> |
63 |
#include <linux/usb.h> |
64 |
#include <linux/timer.h> |
65 |
#include <asm/io.h> |
66 |
|
67 |
#include <linux/netdevice.h> |
68 |
#include <linux/if_arp.h> |
69 |
#include <linux/etherdevice.h> |
70 |
#include <linux/wireless.h> |
71 |
|
72 |
#include "firmware.h" |
73 |
#include "orinoco.h" |
74 |
|
75 |
/* Forward compatibility macros */ |
76 |
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 5, 0) |
77 |
# define return_probe(priv_data, retval) return retval |
78 |
# define usb_get_desc(iface) (iface.desc) |
79 |
# define fw_dev_param (&interface->dev) |
80 |
#endif |
81 |
|
82 |
struct ez_usb_fw { |
83 |
u16 size; |
84 |
u16 card_variant_offset; |
85 |
u8 *code; |
86 |
}; |
87 |
|
88 |
/* |
89 |
* If EZUSB_FW_INCLUDED is defined, the firmware is hardcoded into |
90 |
* the driver. Use get_ezusb_fw script to generate orinoco_usb_fw.h and |
91 |
* copy it to the same directory as orinoco_usb.c. |
92 |
* |
93 |
* If EZUSB_FW_INCLUDED is not defined, the firmware is loaded at the |
94 |
* runtime using hotplug. Use the same get_ezusb_fw script to generate |
95 |
* file orinoco_ezusb_fw, copy it to the hotplug firmware directory |
96 |
* (typically /usr/lib/hotplug/firmware) and make sure that you have |
97 |
* hotplug installed and enabled in the kernel. |
98 |
*/ |
99 |
/* #define EZUSB_FW_INCLUDED 1 */ |
100 |
|
101 |
#ifdef EZUSB_FW_INCLUDED |
102 |
/* Header with the firmware */ |
103 |
#include "orinoco_usb_fw.h" |
104 |
static struct ez_usb_fw firmware = { |
105 |
.size = sizeof(ezusb_fw), |
106 |
.code = ezusb_fw, |
107 |
}; |
108 |
#else /* !EZUSB_FW_INCLUDED */ |
109 |
static struct ez_usb_fw firmware = { |
110 |
.size = 0, |
111 |
.code = NULL, |
112 |
}; |
113 |
#endif /* !EZUSB_FW_INCLUDED */ |
114 |
|
115 |
#ifdef CONFIG_USB_DEBUG |
116 |
static int debug = 1; |
117 |
#else |
118 |
static int debug; |
119 |
#endif |
120 |
|
121 |
/* Debugging macros */ |
122 |
#undef dbg |
123 |
#define dbg(format, arg...) \ |
124 |
do { if (debug) printk(KERN_DEBUG PFX "%s: " format "\n", \ |
125 |
__FUNCTION__ , ## arg); } while (0) |
126 |
#undef err |
127 |
#define err(format, arg...) \ |
128 |
do { printk(KERN_ERR PFX format "\n", ## arg); } while (0) |
129 |
|
130 |
/* Module paramaters */ |
131 |
module_param(debug, int, 0644); |
132 |
MODULE_PARM_DESC(debug, "Debug enabled or not"); |
133 |
|
134 |
/* |
135 |
* Under some conditions, the card gets stuck and stops paying attention |
136 |
* to the world (i.e. data communication stalls) until we do something to |
137 |
* it. Sending an INQ_TALLIES command seems to be enough and should be |
138 |
* harmless otherwise. This behaviour has been observed when using the |
139 |
* driver on a systemimager client during installation. In the past a |
140 |
* timer was used to send INQ_TALLIES commands when there was no other |
141 |
* activity, but it was troublesome and was removed. |
142 |
*/ |
143 |
|
144 |
static int force_unsupported = 0; |
145 |
module_param(force_unsupported, int, 0644); |
146 |
MODULE_PARM_DESC(force_unsupported, "Try to handle untested hardware."); |
147 |
|
148 |
static int default_card_variant = 0; |
149 |
module_param(default_card_variant, int, 0644); |
150 |
MODULE_PARM_DESC(default_card_variant, |
151 |
"Card variant to use as a first guess"); |
152 |
/* Most of this Device/Vendor pairs are untested */ |
153 |
|
154 |
#define USB_COMPAQ_VENDOR_ID 0x049f /* Compaq Computer Corp. */ |
155 |
#define USB_COMPAQ_WL215_ID 0x001f /* Compaq WL215 USB Adapter */ |
156 |
#define USB_HP_WL215_ID 0x0082 /* Compaq WL215 USB Adapter */ |
157 |
#define USB_COMPAQ_W200_ID 0x0076 /* Compaq W200 USB Adapter */ |
158 |
|
159 |
#define USB_MELCO_VENDOR_ID 0x0411 |
160 |
#define USB_BUFFALO_AIRSTA_ID 0x000B /* Buffalo airstation usb */ |
161 |
|
162 |
#define USB_LUCENT_VENDOR_ID 0x047E /* Lucent Technologies */ |
163 |
#define USB_LUCENT_ORINOCO_ID 0x0300 /* Lucent/Agere Orinoco USB |
164 |
Client */ |
165 |
#define USB_AVAYA8_VENDOR_ID 0x0D98 |
166 |
#define USB_AVAYAE_VENDOR_ID 0x0D9E |
167 |
#define USB_AVAYA_WIRELESS_ID 0x0300 /* Avaya Wireless USB Card */ |
168 |
|
169 |
#define USB_AGERE_VENDOR_ID 0x0D4E /* Agere Systems */ |
170 |
#define USB_AGERE_ORINOCO_ID 0x1000 /*Wireless USB Card Model 0801 */ |
171 |
#define USB_AGERE_REBRANDED_ID 0x047A /* WLAN USB Card */ |
172 |
|
173 |
#define USB_ELSA_VERNDOR_ID 0x05CC |
174 |
#define USB_ELSA_AIRLANCER_ID 0x3100 /* ELSA AirLancer USB-11 */ |
175 |
|
176 |
#define USB_LEGEND_VENDOR_ID 0x0E7C |
177 |
#define USB_LEGEND_JOYNET_ID 0x0300 /* LEGEND Joynet WLAN USB Card */ |
178 |
|
179 |
#define USB_SAMSUNG_VENDOR_ID 0x04E8 |
180 |
#define USB_SAMSUNG_SEW2001U_ID 0x5002 /* Samsung SEW-2001u Card */ |
181 |
#define USB_SANSUNG_SEW2001U2_ID 0x5B11 /* Samsung SEW-2001u Card */ |
182 |
|
183 |
#define USB_IGATE_VENDOR_ID 0x0681 |
184 |
#define USB_IGATE_IGATE_11M_ID 0x0012 /* I-GATE 11M USB Card */ |
185 |
|
186 |
#define USB_FUJITSU_VENDOR_ID 0x0BF |
187 |
#define USB_FUJITSU_E1100_ID 0x1002 /* Fujitsu Siemens Computers |
188 |
connect2AIR WLAN E-1100 USB */ |
189 |
#define USB_2WIRE_VENDOR_ID 0x1630 |
190 |
#define USB_2WIRE_WIRELESS_ID 0xff81 /* 2Wire Wireless USB adapter */ |
191 |
|
192 |
|
193 |
#define EZUSB_REQUEST_FW_TRANS 0xA0 |
194 |
#define EZUSB_REQUEST_TRIGER 0xAA |
195 |
#define EZUSB_REQUEST_TRIG_AC 0xAC |
196 |
#define EZUSB_CPUCS_REG 0x7F92 |
197 |
|
198 |
#define EZUSB_RID_TX 0x0700 |
199 |
#define EZUSB_RID_RX 0x0701 |
200 |
#define EZUSB_RID_INIT1 0x0702 |
201 |
#define EZUSB_RID_ACK 0x0710 |
202 |
#define EZUSB_RID_DOCMD 0x0860 |
203 |
|
204 |
/* Recognize info frames */ |
205 |
#define EZUSB_IS_INFO(id) ((id >= 0xF000) && (id <= 0xF2FF)) |
206 |
|
207 |
#define EZUSB_MAGIC 0x0210 |
208 |
|
209 |
#define EZUSB_FRAME_DATA 1 |
210 |
#define EZUSB_FRAME_CONTROL 2 |
211 |
|
212 |
#define DEF_TIMEOUT (3*HZ) |
213 |
|
214 |
#define BULK_BUF_SIZE 2048 |
215 |
|
216 |
struct ezusb_packet { |
217 |
u16 magic; /* 0x0210 */ |
218 |
u8 req_reply_count; |
219 |
u8 ans_reply_count; |
220 |
u16 frame_type; /* 0x01 for data frames, 0x02 otherwise */ |
221 |
u16 size; /* transport size */ |
222 |
u16 crc; /* CRC up to here */ |
223 |
u16 hermes_len; |
224 |
u16 hermes_rid; |
225 |
u8 data[0]; |
226 |
} __attribute__ ((packed)); |
227 |
|
228 |
/* table of devices that may work with this driver */ |
229 |
/* We will refuse to touch any untested device unless force_unsupported is set |
230 |
*/ |
231 |
static struct usb_device_id ezusb_table[] = { |
232 |
{USB_DEVICE(USB_COMPAQ_VENDOR_ID, USB_COMPAQ_WL215_ID)}, |
233 |
{USB_DEVICE(USB_COMPAQ_VENDOR_ID, USB_HP_WL215_ID)}, |
234 |
{USB_DEVICE(USB_COMPAQ_VENDOR_ID, USB_COMPAQ_W200_ID)}, |
235 |
{USB_DEVICE(USB_MELCO_VENDOR_ID, USB_BUFFALO_AIRSTA_ID)}, |
236 |
{USB_DEVICE(USB_LUCENT_VENDOR_ID, USB_LUCENT_ORINOCO_ID)}, |
237 |
{USB_DEVICE(USB_AVAYA8_VENDOR_ID, USB_AVAYA_WIRELESS_ID)}, |
238 |
{USB_DEVICE(USB_AVAYAE_VENDOR_ID, USB_AVAYA_WIRELESS_ID)}, |
239 |
{USB_DEVICE(USB_AGERE_VENDOR_ID, USB_AGERE_ORINOCO_ID)}, |
240 |
{USB_DEVICE(USB_ELSA_VERNDOR_ID, USB_ELSA_AIRLANCER_ID)}, |
241 |
{USB_DEVICE(USB_LEGEND_VENDOR_ID, USB_LEGEND_JOYNET_ID)}, |
242 |
{USB_DEVICE_VER(USB_SAMSUNG_VENDOR_ID, USB_SAMSUNG_SEW2001U_ID, |
243 |
0, 0)}, |
244 |
{USB_DEVICE(USB_SAMSUNG_VENDOR_ID, USB_SANSUNG_SEW2001U2_ID)}, |
245 |
{USB_DEVICE(USB_IGATE_VENDOR_ID, USB_IGATE_IGATE_11M_ID)}, |
246 |
{USB_DEVICE(USB_FUJITSU_VENDOR_ID, USB_FUJITSU_E1100_ID)}, |
247 |
{USB_DEVICE(USB_2WIRE_VENDOR_ID, USB_2WIRE_WIRELESS_ID)}, |
248 |
{USB_DEVICE(USB_AGERE_VENDOR_ID, USB_AGERE_REBRANDED_ID)}, |
249 |
{} /* Terminating entry */ |
250 |
}; |
251 |
|
252 |
MODULE_DEVICE_TABLE(usb, ezusb_table); |
253 |
|
254 |
/* Devices should be added to 'ezusb_table' and one of |
255 |
* ezusb_varian1_table or ezusb_varian2_table. Devices on the |
256 |
* 'ezusb_table' but not on any of 'ezusb_varian1_table' or |
257 |
* 'ezusb_varian2_table' will require force_unsupported=1. */ |
258 |
|
259 |
/* Variant 1 has a PCMCIA card inside */ |
260 |
static struct usb_device_id ezusb_varian1_table[] = { |
261 |
{USB_DEVICE(USB_COMPAQ_VENDOR_ID, USB_COMPAQ_WL215_ID)}, |
262 |
{USB_DEVICE(USB_COMPAQ_VENDOR_ID, USB_HP_WL215_ID)}, |
263 |
{USB_DEVICE(USB_COMPAQ_VENDOR_ID, USB_COMPAQ_W200_ID)}, |
264 |
{USB_DEVICE(USB_LUCENT_VENDOR_ID, USB_LUCENT_ORINOCO_ID)}, |
265 |
{USB_DEVICE(USB_AVAYA8_VENDOR_ID, USB_AVAYA_WIRELESS_ID)}, |
266 |
{USB_DEVICE(USB_MELCO_VENDOR_ID, USB_BUFFALO_AIRSTA_ID)}, |
267 |
{USB_DEVICE(USB_AGERE_VENDOR_ID, USB_AGERE_ORINOCO_ID)}, |
268 |
{USB_DEVICE(USB_AGERE_VENDOR_ID, USB_AGERE_REBRANDED_ID)}, |
269 |
{} |
270 |
}; |
271 |
|
272 |
/* Variant 2 is all build in a single board */ |
273 |
static struct usb_device_id ezusb_varian2_table[] = { |
274 |
{} |
275 |
}; |
276 |
|
277 |
/* Structure to hold all of our device specific stuff */ |
278 |
struct ezusb_priv { |
279 |
struct usb_device *udev; |
280 |
struct net_device *net_dev; |
281 |
struct semaphore sem; |
282 |
spinlock_t req_lock; |
283 |
struct list_head req_pending; |
284 |
struct list_head req_active; |
285 |
spinlock_t reply_count_lock; |
286 |
u16 hermes_reg_fake[0x40]; |
287 |
u8 *bap_buf; |
288 |
struct urb *read_urb; |
289 |
int read_pipe; |
290 |
int write_pipe; |
291 |
u8 reply_count; |
292 |
u8 card_variant; |
293 |
}; |
294 |
|
295 |
typedef enum { |
296 |
EZUSB_CTX_START, |
297 |
EZUSB_CTX_QUEUED, |
298 |
EZUSB_CTX_REQ_SUBMITTED, |
299 |
EZUSB_CTX_REQ_COMPLETE, |
300 |
EZUSB_CTX_RESP_RECEIVED, |
301 |
EZUSB_CTX_REQ_TIMEOUT, |
302 |
EZUSB_CTX_REQ_FAILED, |
303 |
EZUSB_CTX_RESP_TIMEOUT, |
304 |
EZUSB_CTX_REQSUBMIT_FAIL, |
305 |
EZUSB_CTX_COMPLETE, |
306 |
} ezusb_state_t; |
307 |
|
308 |
struct request_context { |
309 |
struct list_head list; |
310 |
atomic_t refcount; |
311 |
struct completion done; /* Signals that CTLX is dead */ |
312 |
int killed; |
313 |
struct urb *outurb; /* OUT for req pkt */ |
314 |
struct ezusb_priv *dev; |
315 |
struct ezusb_packet *buf; |
316 |
int buf_length; |
317 |
struct timer_list timer; /* Timeout handling */ |
318 |
ezusb_state_t state; /* Current state */ |
319 |
/* the RID that we will wait for */ |
320 |
u16 out_rid; |
321 |
u16 in_rid; |
322 |
}; |
323 |
|
324 |
|
325 |
/* Forward declarations */ |
326 |
static void ezusb_ctx_complete(struct request_context *ctx); |
327 |
static void ezusb_req_queue_run(struct ezusb_priv *dev); |
328 |
static void ezusb_bulk_in_callback(struct urb *urb, struct pt_regs *); |
329 |
|
330 |
|
331 |
/* Debug functions */ |
332 |
static inline void hex_dump(const void *data_p, int size) |
333 |
{ |
334 |
int i; |
335 |
const u8 *data = data_p; |
336 |
|
337 |
printk(KERN_DEBUG "Dump at %p, length: %d\n", data, size); |
338 |
|
339 |
for (i = 0; i < size; i++) { |
340 |
if ((i & 0xf) == 0) |
341 |
printk(KERN_DEBUG "0x%04X: ", i); |
342 |
if ((i & 3) == 0) |
343 |
printk(" "); |
344 |
printk("%02X ", data[i]); |
345 |
if ((i & 0xf) == 0xf) |
346 |
printk("\n"); |
347 |
} |
348 |
if ((i & 0xf) != 0) |
349 |
printk("\n"); |
350 |
} |
351 |
|
352 |
|
353 |
static inline u8 ezusb_reply_inc(u8 count) |
354 |
{ |
355 |
if (count < 0x7F) |
356 |
return count + 1; |
357 |
else |
358 |
return 1; |
359 |
} |
360 |
|
361 |
static void ezusb_request_context_put(struct request_context *ctx) |
362 |
{ |
363 |
if (!atomic_dec_and_test(&ctx->refcount)) |
364 |
return; |
365 |
|
366 |
WARN_ON(!ctx->done.done); |
367 |
BUG_ON(ctx->outurb->status == -EINPROGRESS); |
368 |
BUG_ON(timer_pending(&ctx->timer)); |
369 |
usb_free_urb(ctx->outurb); |
370 |
kfree(ctx->buf); |
371 |
kfree(ctx); |
372 |
} |
373 |
|
374 |
static inline void ezusb_mod_timer(struct ezusb_priv *dev, |
375 |
struct timer_list *timer, |
376 |
unsigned long expire) |
377 |
{ |
378 |
if (!dev->udev) |
379 |
return; |
380 |
mod_timer(timer, expire); |
381 |
} |
382 |
|
383 |
static void ezusb_request_timerfn(u_long _ctx) |
384 |
{ |
385 |
struct request_context *ctx = (void *) _ctx; |
386 |
|
387 |
ctx->outurb->transfer_flags |= URB_ASYNC_UNLINK; |
388 |
if (usb_unlink_urb(ctx->outurb) == -EINPROGRESS) { |
389 |
ctx->state = EZUSB_CTX_REQ_TIMEOUT; |
390 |
} else { |
391 |
ctx->state = EZUSB_CTX_RESP_TIMEOUT; |
392 |
dbg("couldn't unlink"); |
393 |
atomic_inc(&ctx->refcount); |
394 |
ctx->killed = 1; |
395 |
ezusb_ctx_complete(ctx); |
396 |
ezusb_request_context_put(ctx); |
397 |
} |
398 |
}; |
399 |
|
400 |
struct request_context *ezusb_alloc_ctx(struct ezusb_priv *dev, |
401 |
u16 out_rid, u16 in_rid) |
402 |
{ |
403 |
struct request_context *ctx; |
404 |
|
405 |
ctx = kmalloc(sizeof(*ctx), GFP_ATOMIC); |
406 |
if (!ctx) { |
407 |
return NULL; |
408 |
} |
409 |
memset(ctx, 0, sizeof(*ctx)); |
410 |
|
411 |
ctx->buf = kmalloc(BULK_BUF_SIZE, GFP_ATOMIC); |
412 |
if (!ctx->buf) { |
413 |
kfree(ctx); |
414 |
return NULL; |
415 |
} |
416 |
ctx->outurb = usb_alloc_urb(0, GFP_ATOMIC); |
417 |
if (!ctx->outurb) { |
418 |
kfree(ctx->buf); |
419 |
kfree(ctx); |
420 |
return NULL; |
421 |
} |
422 |
|
423 |
ctx->dev = dev; |
424 |
ctx->state = EZUSB_CTX_START; |
425 |
ctx->out_rid = out_rid; |
426 |
ctx->in_rid = in_rid; |
427 |
|
428 |
atomic_set(&ctx->refcount, 1); |
429 |
init_completion(&ctx->done); |
430 |
|
431 |
init_timer(&ctx->timer); |
432 |
ctx->timer.function = ezusb_request_timerfn; |
433 |
ctx->timer.data = (u_long) ctx; |
434 |
return ctx; |
435 |
} |
436 |
|
437 |
|
438 |
/* Hopefully the real complete_all will soon be exported, in the mean |
439 |
* while this should work. */ |
440 |
static inline void ezusb_complete_all(struct completion *comp) |
441 |
{ |
442 |
complete(comp); |
443 |
complete(comp); |
444 |
complete(comp); |
445 |
complete(comp); |
446 |
} |
447 |
|
448 |
static void ezusb_ctx_complete(struct request_context *ctx) |
449 |
{ |
450 |
struct ezusb_priv *dev = ctx->dev; |
451 |
unsigned long flags; |
452 |
|
453 |
spin_lock_irqsave(&dev->req_lock, flags); |
454 |
|
455 |
list_del_init(&ctx->list); |
456 |
if (dev->udev) { |
457 |
spin_unlock_irqrestore(&dev->req_lock, flags); |
458 |
ezusb_req_queue_run(dev); |
459 |
spin_lock_irqsave(&dev->req_lock, flags); |
460 |
} |
461 |
|
462 |
switch (ctx->state) { |
463 |
case EZUSB_CTX_COMPLETE: |
464 |
case EZUSB_CTX_REQSUBMIT_FAIL: |
465 |
case EZUSB_CTX_REQ_FAILED: |
466 |
case EZUSB_CTX_REQ_TIMEOUT: |
467 |
case EZUSB_CTX_RESP_TIMEOUT: |
468 |
spin_unlock_irqrestore(&dev->req_lock, flags); |
469 |
|
470 |
if ((ctx->out_rid == EZUSB_RID_TX) && dev->net_dev) { |
471 |
struct net_device *net_dev = dev->net_dev; |
472 |
struct orinoco_private *priv = netdev_priv(net_dev); |
473 |
struct net_device_stats *stats = &priv->stats; |
474 |
|
475 |
if (ctx->state != EZUSB_CTX_COMPLETE) |
476 |
stats->tx_errors++; |
477 |
else |
478 |
stats->tx_packets++; |
479 |
|
480 |
netif_wake_queue(net_dev); |
481 |
} |
482 |
ezusb_complete_all(&ctx->done); |
483 |
ezusb_request_context_put(ctx); |
484 |
break; |
485 |
|
486 |
default: |
487 |
spin_unlock_irqrestore(&dev->req_lock, flags); |
488 |
if (!dev->udev) { |
489 |
/* This is normal, as all request contexts get flushed |
490 |
* when the device is disconnected */ |
491 |
err("Called, CTLX not terminating, but device gone"); |
492 |
ezusb_complete_all(&ctx->done); |
493 |
ezusb_request_context_put(ctx); |
494 |
break; |
495 |
} |
496 |
|
497 |
err("Called, CTLX not in terminating state."); |
498 |
/* Things are really bad if this happens. Just leak |
499 |
* the CTLX because it may still be linked to the |
500 |
* queue or the OUT urb may still be active. |
501 |
* Just leaking at least prevents an Oops or Panic. |
502 |
*/ |
503 |
break; |
504 |
} |
505 |
} |
506 |
|
507 |
/** |
508 |
* ezusb_req_queue_run: |
509 |
* Description: |
510 |
* Note: Only one active CTX at any one time, because there's no |
511 |
* other (reliable) way to match the response URB to the correct |
512 |
* CTX. |
513 |
**/ |
514 |
static void ezusb_req_queue_run(struct ezusb_priv *dev) |
515 |
{ |
516 |
unsigned long flags; |
517 |
struct request_context *ctx; |
518 |
int result; |
519 |
|
520 |
spin_lock_irqsave(&dev->req_lock, flags); |
521 |
|
522 |
if (!list_empty(&dev->req_active)) |
523 |
goto unlock; |
524 |
|
525 |
if (list_empty(&dev->req_pending)) |
526 |
goto unlock; |
527 |
|
528 |
ctx = |
529 |
list_entry(dev->req_pending.next, struct request_context, |
530 |
list); |
531 |
|
532 |
if (!ctx->dev->udev) |
533 |
goto unlock; |
534 |
|
535 |
/* We need to split this off to avoid a race condition */ |
536 |
list_move_tail(&ctx->list, &dev->req_active); |
537 |
|
538 |
if (ctx->state == EZUSB_CTX_QUEUED) { |
539 |
atomic_inc(&ctx->refcount); |
540 |
result = usb_submit_urb(ctx->outurb, GFP_ATOMIC); |
541 |
if (result) { |
542 |
ctx->state = EZUSB_CTX_REQSUBMIT_FAIL; |
543 |
|
544 |
spin_unlock_irqrestore(&dev->req_lock, flags); |
545 |
|
546 |
err("Fatal, failed to submit command urb." |
547 |
" error=%d\n", result); |
548 |
|
549 |
ezusb_ctx_complete(ctx); |
550 |
ezusb_request_context_put(ctx); |
551 |
goto done; |
552 |
} |
553 |
|
554 |
ctx->state = EZUSB_CTX_REQ_SUBMITTED; |
555 |
ezusb_mod_timer(ctx->dev, &ctx->timer, |
556 |
jiffies + DEF_TIMEOUT); |
557 |
} |
558 |
|
559 |
unlock: |
560 |
spin_unlock_irqrestore(&dev->req_lock, flags); |
561 |
|
562 |
done: |
563 |
return; |
564 |
} |
565 |
|
566 |
static void ezusb_req_enqueue_run(struct ezusb_priv *dev, |
567 |
struct request_context *ctx) |
568 |
{ |
569 |
unsigned long flags; |
570 |
|
571 |
spin_lock_irqsave(&dev->req_lock, flags); |
572 |
|
573 |
if (!ctx->dev->udev) { |
574 |
spin_unlock_irqrestore(&dev->req_lock, flags); |
575 |
goto done; |
576 |
} |
577 |
atomic_inc(&ctx->refcount); |
578 |
list_add_tail(&ctx->list, &dev->req_pending); |
579 |
spin_unlock_irqrestore(&dev->req_lock, flags); |
580 |
|
581 |
ctx->state = EZUSB_CTX_QUEUED; |
582 |
ezusb_req_queue_run(dev); |
583 |
|
584 |
done: |
585 |
return; |
586 |
} |
587 |
|
588 |
static void ezusb_request_out_callback(struct urb *urb, |
589 |
struct pt_regs *pt_regs) |
590 |
{ |
591 |
unsigned long flags; |
592 |
ezusb_state_t state; |
593 |
struct request_context *ctx = urb->context; |
594 |
struct ezusb_priv *dev = ctx->dev; |
595 |
|
596 |
spin_lock_irqsave(&dev->req_lock, flags); |
597 |
|
598 |
del_timer(&ctx->timer); |
599 |
|
600 |
if (ctx->killed) { |
601 |
spin_unlock_irqrestore(&dev->req_lock, flags); |
602 |
warn("interrupt called with dead ctx"); |
603 |
goto out; |
604 |
} |
605 |
|
606 |
state = ctx->state; |
607 |
|
608 |
if (urb->status == 0) { |
609 |
switch (state) { |
610 |
case EZUSB_CTX_REQ_SUBMITTED: |
611 |
if (ctx->in_rid) { |
612 |
ctx->state = EZUSB_CTX_REQ_COMPLETE; |
613 |
/* reply URB still pending */ |
614 |
ezusb_mod_timer(dev, &ctx->timer, |
615 |
jiffies + DEF_TIMEOUT); |
616 |
spin_unlock_irqrestore(&dev->req_lock, |
617 |
flags); |
618 |
break; |
619 |
} |
620 |
/* fall through */ |
621 |
case EZUSB_CTX_RESP_RECEIVED: |
622 |
/* IN already received before this OUT-ACK */ |
623 |
ctx->state = EZUSB_CTX_COMPLETE; |
624 |
spin_unlock_irqrestore(&dev->req_lock, flags); |
625 |
ezusb_ctx_complete(ctx); |
626 |
break; |
627 |
|
628 |
default: |
629 |
spin_unlock_irqrestore(&dev->req_lock, flags); |
630 |
err("Unexpected state(0x%x, %d) in OUT URB", |
631 |
state, urb->status); |
632 |
break; |
633 |
} |
634 |
} else { |
635 |
/* If someone cancels the OUT URB then its status |
636 |
* should be either -ECONNRESET or -ENOENT. |
637 |
*/ |
638 |
switch (state) { |
639 |
case EZUSB_CTX_REQ_SUBMITTED: |
640 |
case EZUSB_CTX_RESP_RECEIVED: |
641 |
ctx->state = EZUSB_CTX_REQ_FAILED; |
642 |
/* fall through */ |
643 |
|
644 |
case EZUSB_CTX_REQ_FAILED: |
645 |
case EZUSB_CTX_REQ_TIMEOUT: |
646 |
spin_unlock_irqrestore(&dev->req_lock, flags); |
647 |
|
648 |
ezusb_ctx_complete(ctx); |
649 |
break; |
650 |
|
651 |
default: |
652 |
spin_unlock_irqrestore(&dev->req_lock, flags); |
653 |
|
654 |
err("Unexpected state(0x%x, %d) in OUT URB", |
655 |
state, urb->status); |
656 |
break; |
657 |
} |
658 |
} |
659 |
out: |
660 |
ezusb_request_context_put(ctx); |
661 |
} |
662 |
|
663 |
static void ezusb_request_in_callback(struct ezusb_priv *dev, |
664 |
struct urb *urb) |
665 |
{ |
666 |
struct ezusb_packet *ans = urb->transfer_buffer; |
667 |
struct request_context *ctx = NULL; |
668 |
ezusb_state_t state; |
669 |
unsigned long flags; |
670 |
|
671 |
/* Find the CTLX on the active queue that requested this URB */ |
672 |
spin_lock_irqsave(&dev->req_lock, flags); |
673 |
if (dev->udev) { |
674 |
struct list_head *item; |
675 |
|
676 |
list_for_each(item, &dev->req_active) { |
677 |
struct request_context *c; |
678 |
int reply_count; |
679 |
|
680 |
c = list_entry(item, struct request_context, list); |
681 |
reply_count = |
682 |
ezusb_reply_inc(c->buf->req_reply_count); |
683 |
if ((ans->ans_reply_count == reply_count) |
684 |
&& (le16_to_cpu(ans->hermes_rid) == c->in_rid)) { |
685 |
ctx = c; |
686 |
break; |
687 |
} |
688 |
dbg("Skipped (0x%x/0x%x) (%d/%d)", |
689 |
le16_to_cpu(ans->hermes_rid), |
690 |
c->in_rid, ans->ans_reply_count, reply_count); |
691 |
} |
692 |
} |
693 |
|
694 |
if (ctx == NULL) { |
695 |
spin_unlock_irqrestore(&dev->req_lock, flags); |
696 |
err("%s: got unexpected RID: 0x%04X", __FUNCTION__, |
697 |
le16_to_cpu(ans->hermes_rid)); |
698 |
ezusb_req_queue_run(dev); |
699 |
return; |
700 |
} |
701 |
|
702 |
/* The data we want is in the in buffer, exchange */ |
703 |
urb->transfer_buffer = ctx->buf; |
704 |
ctx->buf = (void *) ans; |
705 |
ctx->buf_length = urb->actual_length; |
706 |
|
707 |
state = ctx->state; |
708 |
switch (state) { |
709 |
case EZUSB_CTX_REQ_SUBMITTED: |
710 |
/* We have received our response URB before |
711 |
* our request has been acknowledged. Do NOT |
712 |
* destroy our CTX yet, because our OUT URB |
713 |
* is still alive ... |
714 |
*/ |
715 |
ctx->state = EZUSB_CTX_RESP_RECEIVED; |
716 |
spin_unlock_irqrestore(&dev->req_lock, flags); |
717 |
|
718 |
/* Let the machine continue running. */ |
719 |
break; |
720 |
|
721 |
case EZUSB_CTX_REQ_COMPLETE: |
722 |
/* This is the usual path: our request |
723 |
* has already been acknowledged, and |
724 |
* we have now received the reply. |
725 |
*/ |
726 |
ctx->state = EZUSB_CTX_COMPLETE; |
727 |
|
728 |
/* Stop the intimer */ |
729 |
del_timer(&ctx->timer); |
730 |
spin_unlock_irqrestore(&dev->req_lock, flags); |
731 |
|
732 |
/* Call the completion handler */ |
733 |
ezusb_ctx_complete(ctx); |
734 |
break; |
735 |
|
736 |
default: |
737 |
spin_unlock_irqrestore(&dev->req_lock, flags); |
738 |
|
739 |
warn("Matched IN URB, unexpected context state(0x%x)", |
740 |
state); |
741 |
/* Throw this CTX away and try submitting another */ |
742 |
del_timer(&ctx->timer); |
743 |
ctx->outurb->transfer_flags |= URB_ASYNC_UNLINK; |
744 |
usb_unlink_urb(ctx->outurb); |
745 |
ezusb_req_queue_run(dev); |
746 |
break; |
747 |
} /* switch */ |
748 |
} |
749 |
|
750 |
|
751 |
static void ezusb_req_ctx_wait(struct ezusb_priv *dev, |
752 |
struct request_context *ctx) |
753 |
{ |
754 |
switch (ctx->state) { |
755 |
case EZUSB_CTX_QUEUED: |
756 |
case EZUSB_CTX_REQ_SUBMITTED: |
757 |
case EZUSB_CTX_REQ_COMPLETE: |
758 |
case EZUSB_CTX_RESP_RECEIVED: |
759 |
if (in_atomic()) { |
760 |
/* If we get called from a timer, timeout timers don't |
761 |
* get the chance to run themselfs. So we make sure |
762 |
* that we don't sleep for ever */ |
763 |
int msecs = DEF_TIMEOUT * (1000 / HZ); |
764 |
while (!ctx->done.done && msecs--) |
765 |
udelay(1000); |
766 |
} else { |
767 |
wait_event_interruptible(ctx->done.wait, |
768 |
ctx->done.done); |
769 |
} |
770 |
break; |
771 |
default: |
772 |
/* Done or failed - nothing to wait for */ |
773 |
break; |
774 |
} |
775 |
} |
776 |
|
777 |
static inline u16 build_crc(u8 *data) |
778 |
{ |
779 |
u16 crc = 0; |
780 |
int i; |
781 |
for (i = 0; i < 8; i++) { |
782 |
crc = (crc << 1) + data[i]; |
783 |
} |
784 |
return crc; |
785 |
} |
786 |
|
787 |
static inline void ezusb_req_le_to_cpu(struct ezusb_packet *req) |
788 |
{ |
789 |
le16_to_cpus(&req->magic); |
790 |
le16_to_cpus(&req->frame_type); |
791 |
le16_to_cpus(&req->size); |
792 |
le16_to_cpus(&req->crc); |
793 |
/* don't translate req->hermes_len and req->hermes_rid, |
794 |
orinoco.c expects them to be little endian */ |
795 |
} |
796 |
|
797 |
/** |
798 |
* ezusb_fill_req: |
799 |
* |
800 |
* if data == NULL and length > 0 the data is assumed to be already in |
801 |
* the target buffer and only the header is filled. |
802 |
* |
803 |
*/ |
804 |
static int ezusb_fill_req(struct ezusb_packet *req, u16 length, u16 rid, |
805 |
const void *data, u16 frame_type, u8 reply_count) |
806 |
{ |
807 |
int total_size = sizeof(*req) + length; |
808 |
|
809 |
BUG_ON(total_size > BULK_BUF_SIZE); |
810 |
|
811 |
req->magic = cpu_to_le16(EZUSB_MAGIC); |
812 |
req->req_reply_count = reply_count; |
813 |
req->ans_reply_count = 0; |
814 |
req->frame_type = cpu_to_le16(frame_type); |
815 |
req->size = cpu_to_le16(length + 4); |
816 |
req->crc = cpu_to_le16(build_crc((u8 *) req)); |
817 |
req->hermes_len = cpu_to_le16(HERMES_BYTES_TO_RECLEN(length)); |
818 |
req->hermes_rid = cpu_to_le16(rid); |
819 |
if (data) |
820 |
memcpy(req->data, data, length); |
821 |
return total_size; |
822 |
} |
823 |
|
824 |
static int ezusb_submit_in_urb(struct ezusb_priv *dev) |
825 |
{ |
826 |
int retval = 0; |
827 |
void *cur_buf = dev->read_urb->transfer_buffer; |
828 |
|
829 |
if (dev->read_urb->status == -EINPROGRESS) { |
830 |
dbg("urb busy, not resubmiting"); |
831 |
retval = -EBUSY; |
832 |
goto exit; |
833 |
} |
834 |
usb_fill_bulk_urb(dev->read_urb, dev->udev, dev->read_pipe, |
835 |
cur_buf, BULK_BUF_SIZE, |
836 |
ezusb_bulk_in_callback, dev); |
837 |
dev->read_urb->transfer_flags = 0; |
838 |
retval = usb_submit_urb(dev->read_urb, GFP_ATOMIC); |
839 |
if (retval) |
840 |
err("%s submit failed %d", __FUNCTION__, retval); |
841 |
|
842 |
exit: |
843 |
return retval; |
844 |
} |
845 |
|
846 |
static int ezusb_remove_in_urb(struct ezusb_priv *dev) |
847 |
{ |
848 |
int retval = 0; |
849 |
|
850 |
if (dev->read_urb->status != -EINPROGRESS) { |
851 |
dbg("no urb to remove"); |
852 |
retval = -ENOENT; |
853 |
goto exit; |
854 |
} |
855 |
retval = usb_unlink_urb(dev->read_urb); |
856 |
exit: |
857 |
return retval; |
858 |
} |
859 |
|
860 |
static inline int ezusb_8051_cpucs(struct ezusb_priv *dev, int reset) |
861 |
{ |
862 |
u8 res_val = reset; /* avoid argument promotion */ |
863 |
|
864 |
if (!dev->udev) { |
865 |
err("%s: !dev->udev", __FUNCTION__); |
866 |
return -EFAULT; |
867 |
} |
868 |
return usb_control_msg(dev->udev, |
869 |
usb_sndctrlpipe(dev->udev, 0), |
870 |
EZUSB_REQUEST_FW_TRANS, |
871 |
USB_TYPE_VENDOR | USB_RECIP_DEVICE | |
872 |
USB_DIR_OUT, EZUSB_CPUCS_REG, 0, &res_val, |
873 |
sizeof(res_val), DEF_TIMEOUT); |
874 |
} |
875 |
|
876 |
static int find_fw_variant_offset(struct ez_usb_fw *fw) |
877 |
{ |
878 |
int offset; |
879 |
offset = *(short *) (fw->code + 1); |
880 |
offset = be16_to_cpu(offset); |
881 |
for (; offset < fw->size; offset++) { |
882 |
if (memcmp("\x02\x03\x58", &fw->code[offset], 3) == 0) |
883 |
break; |
884 |
} |
885 |
if (offset > (fw->size - 4)) { |
886 |
dbg("couldn't find card_variant_offset"); |
887 |
return -1; |
888 |
} |
889 |
fw->card_variant_offset = offset + 3; |
890 |
dbg("card_variant_offset = 0x%04X", fw->card_variant_offset); |
891 |
return 0; |
892 |
} |
893 |
|
894 |
static int ezusb_firmware_download(struct ezusb_priv *dev, |
895 |
struct ez_usb_fw *fw) |
896 |
{ |
897 |
int retval, addr; |
898 |
int packet_size = dev->udev->descriptor.bMaxPacketSize0; |
899 |
int variant_offset = fw->card_variant_offset % packet_size; |
900 |
int variant_base = fw->card_variant_offset - variant_offset; |
901 |
u8 *transfer_buffer = kmalloc(packet_size, GFP_KERNEL); |
902 |
|
903 |
if (!transfer_buffer) { |
904 |
printk(KERN_ERR PFX "kmalloc(%d) failed\n", packet_size); |
905 |
retval = -ENOMEM; |
906 |
goto fail; |
907 |
} |
908 |
|
909 |
retval = ezusb_8051_cpucs(dev, 1); |
910 |
if (retval < 0) |
911 |
goto fail; |
912 |
for (addr = 0; addr < fw->size; addr += packet_size) { |
913 |
/* 0x100-0x300 should be left alone, it contains card |
914 |
* specific data, like USB enumeration information */ |
915 |
if ((addr >= 0x100) && (addr < 0x300)) |
916 |
continue; |
917 |
|
918 |
memcpy(transfer_buffer, &fw->code[addr], packet_size); |
919 |
if (addr == variant_base) { |
920 |
dbg("Patching card_variant byte 0x%02X at 0x%04X", |
921 |
dev->card_variant, fw->card_variant_offset); |
922 |
transfer_buffer[variant_offset] = |
923 |
dev->card_variant; |
924 |
} |
925 |
retval = usb_control_msg(dev->udev, |
926 |
usb_sndctrlpipe(dev->udev, 0), |
927 |
EZUSB_REQUEST_FW_TRANS, |
928 |
USB_TYPE_VENDOR | USB_RECIP_DEVICE |
929 |
| USB_DIR_OUT, |
930 |
addr, 0x0, |
931 |
transfer_buffer, packet_size, |
932 |
DEF_TIMEOUT); |
933 |
|
934 |
if (retval < 0) |
935 |
goto fail; |
936 |
} |
937 |
retval = ezusb_8051_cpucs(dev, 0); |
938 |
if (retval < 0) |
939 |
goto fail; |
940 |
|
941 |
goto exit; |
942 |
fail: |
943 |
printk(KERN_ERR PFX "Firmware download failed, error %d\n", |
944 |
retval); |
945 |
exit: |
946 |
if (transfer_buffer) |
947 |
kfree(transfer_buffer); |
948 |
return retval; |
949 |
} |
950 |
|
951 |
static int ezusb_access_ltv(struct ezusb_priv *dev, |
952 |
struct request_context *ctx, |
953 |
u16 length, const void *data, u16 frame_type, |
954 |
void *ans_buff, int ans_size, u16 *ans_length) |
955 |
{ |
956 |
int req_size; |
957 |
int retval = 0; |
958 |
ezusb_state_t state; |
959 |
|
960 |
BUG_ON(in_irq()); |
961 |
|
962 |
if (!dev->udev) { |
963 |
dbg("Device disconnected"); |
964 |
return -ENODEV; |
965 |
} |
966 |
|
967 |
if (dev->read_urb->status != -EINPROGRESS) { |
968 |
err("%s: in urb not pending", __FUNCTION__); |
969 |
} |
970 |
|
971 |
/* protect dev->reply_count, guarantee sequential numbers */ |
972 |
spin_lock_bh(&dev->reply_count_lock); |
973 |
req_size = ezusb_fill_req(ctx->buf, length, ctx->out_rid, data, |
974 |
frame_type, dev->reply_count); |
975 |
usb_fill_bulk_urb(ctx->outurb, dev->udev, dev->write_pipe, |
976 |
ctx->buf, req_size, |
977 |
ezusb_request_out_callback, ctx); |
978 |
|
979 |
if (ctx->in_rid) |
980 |
dev->reply_count = ezusb_reply_inc(dev->reply_count); |
981 |
|
982 |
ezusb_req_enqueue_run(dev, ctx); |
983 |
|
984 |
spin_unlock_bh(&dev->reply_count_lock); |
985 |
|
986 |
if (ctx->in_rid) |
987 |
ezusb_req_ctx_wait(dev, ctx); |
988 |
|
989 |
state = ctx->state; |
990 |
switch (state) { |
991 |
case EZUSB_CTX_COMPLETE: |
992 |
retval = ctx->outurb->status; |
993 |
break; |
994 |
|
995 |
case EZUSB_CTX_QUEUED: |
996 |
case EZUSB_CTX_REQ_SUBMITTED: |
997 |
if (!ctx->in_rid) |
998 |
break; |
999 |
default: |
1000 |
err("%s: Unexpected context state %d", __FUNCTION__, |
1001 |
state); |
1002 |
/* fall though */ |
1003 |
case EZUSB_CTX_REQ_TIMEOUT: |
1004 |
case EZUSB_CTX_REQ_FAILED: |
1005 |
case EZUSB_CTX_RESP_TIMEOUT: |
1006 |
case EZUSB_CTX_REQSUBMIT_FAIL: |
1007 |
printk(KERN_ERR PFX "Access failed, resetting (state %d," |
1008 |
" reply_count %d)\n", state, dev->reply_count); |
1009 |
dev->reply_count = 0; |
1010 |
if (state == EZUSB_CTX_REQ_TIMEOUT |
1011 |
|| state == EZUSB_CTX_RESP_TIMEOUT) { |
1012 |
printk(KERN_ERR PFX "ctx timed out\n"); |
1013 |
retval = -ETIMEDOUT; |
1014 |
} else { |
1015 |
printk(KERN_ERR PFX "ctx failed\n"); |
1016 |
retval = -EFAULT; |
1017 |
} |
1018 |
goto exit; |
1019 |
break; |
1020 |
} |
1021 |
if (ctx->in_rid) { |
1022 |
struct ezusb_packet *ans = ctx->buf; |
1023 |
int exp_len; |
1024 |
|
1025 |
if (ans->hermes_len != 0) |
1026 |
exp_len = le16_to_cpu(ans->hermes_len) * 2 + 12; |
1027 |
else |
1028 |
exp_len = 14; |
1029 |
|
1030 |
if (exp_len != ctx->buf_length) { |
1031 |
err("%s: lenght mismatch for RID 0x%04x: " |
1032 |
"expected %d, got %d", __FUNCTION__, |
1033 |
ctx->in_rid, exp_len, ctx->buf_length); |
1034 |
retval = -EIO; |
1035 |
goto exit; |
1036 |
} |
1037 |
|
1038 |
if (ans_buff) |
1039 |
memcpy(ans_buff, ans->data, |
1040 |
min_t(int, exp_len, ans_size)); |
1041 |
if (ans_length) |
1042 |
*ans_length = le16_to_cpu(ans->hermes_len); |
1043 |
} |
1044 |
exit: |
1045 |
ezusb_request_context_put(ctx); |
1046 |
return retval; |
1047 |
} |
1048 |
|
1049 |
static int ezusb_write_ltv(hermes_t *hw, int bap, u16 rid, |
1050 |
u16 length, const void *data) |
1051 |
{ |
1052 |
struct ezusb_priv *dev = hw->priv; |
1053 |
u16 frame_type; |
1054 |
struct request_context *ctx; |
1055 |
|
1056 |
if (length == 0) |
1057 |
return -EINVAL; |
1058 |
|
1059 |
length = HERMES_RECLEN_TO_BYTES(length); |
1060 |
|
1061 |
/* On memory mapped devices HERMES_RID_CNFGROUPADDRESSES can be |
1062 |
* set to be empty, but the USB bridge doesn't like it */ |
1063 |
if (length == 0) |
1064 |
return 0; |
1065 |
|
1066 |
ctx = ezusb_alloc_ctx(dev, rid, EZUSB_RID_ACK); |
1067 |
if (!ctx) |
1068 |
return -ENOMEM; |
1069 |
|
1070 |
if (rid == EZUSB_RID_TX) |
1071 |
frame_type = EZUSB_FRAME_DATA; |
1072 |
else |
1073 |
frame_type = EZUSB_FRAME_CONTROL; |
1074 |
|
1075 |
return ezusb_access_ltv(dev, ctx, length, data, frame_type, |
1076 |
NULL, 0, NULL); |
1077 |
} |
1078 |
|
1079 |
static int ezusb_read_ltv(hermes_t *hw, int bap, u16 rid, |
1080 |
unsigned bufsize, u16 *length, void *buf) |
1081 |
{ |
1082 |
struct ezusb_priv *dev = hw->priv; |
1083 |
struct request_context *ctx; |
1084 |
|
1085 |
if ((bufsize < 0) || (bufsize % 2)) |
1086 |
return -EINVAL; |
1087 |
|
1088 |
ctx = ezusb_alloc_ctx(dev, rid, rid); |
1089 |
if (!ctx) |
1090 |
return -ENOMEM; |
1091 |
|
1092 |
return ezusb_access_ltv(dev, ctx, 0, NULL, EZUSB_FRAME_CONTROL, |
1093 |
buf, bufsize, length); |
1094 |
} |
1095 |
|
1096 |
static int ezusb_docmd_wait(hermes_t *hw, u16 cmd, u16 parm0, |
1097 |
struct hermes_response *resp) |
1098 |
{ |
1099 |
struct ezusb_priv *dev = hw->priv; |
1100 |
struct request_context *ctx; |
1101 |
|
1102 |
u16 data[4] = { |
1103 |
cpu_to_le16(cmd), |
1104 |
cpu_to_le16(parm0), |
1105 |
0, |
1106 |
0, |
1107 |
}; |
1108 |
dbg("0x%04X, parm0 0x%04X", cmd, parm0); |
1109 |
ctx = ezusb_alloc_ctx(dev, EZUSB_RID_DOCMD, EZUSB_RID_ACK); |
1110 |
if (!ctx) |
1111 |
return -ENOMEM; |
1112 |
|
1113 |
return ezusb_access_ltv(dev, ctx, sizeof(data), &data, |
1114 |
EZUSB_FRAME_CONTROL, NULL, 0, NULL); |
1115 |
} |
1116 |
|
1117 |
static int ezusb_bap_pread(struct hermes *hw, int bap, |
1118 |
void *buf, unsigned len, u16 id, u16 offset) |
1119 |
{ |
1120 |
struct ezusb_priv *dev = hw->priv; |
1121 |
struct ezusb_packet *ans = (void *) dev->read_urb->transfer_buffer; |
1122 |
int actual_length = dev->read_urb->actual_length; |
1123 |
|
1124 |
if (id == EZUSB_RID_RX) { |
1125 |
if ((sizeof(*ans) + offset + len) > actual_length) { |
1126 |
printk(KERN_ERR PFX "BAP read beyond buffer end " |
1127 |
"in rx frame\n"); |
1128 |
return -EINVAL; |
1129 |
} |
1130 |
memcpy(buf, ans->data + offset, len); |
1131 |
return 0; |
1132 |
} |
1133 |
|
1134 |
if (EZUSB_IS_INFO(id)) { |
1135 |
/* Include 4 bytes for length/type */ |
1136 |
if ((sizeof(*ans) + offset + len - 4) > actual_length) { |
1137 |
printk(KERN_ERR PFX "BAP read beyond buffer end " |
1138 |
"in info frame\n"); |
1139 |
return -EFAULT; |
1140 |
} |
1141 |
memcpy(buf, ans->data + offset - 4, len); |
1142 |
} else { |
1143 |
printk(KERN_ERR PFX "Unexpected fid 0x%04x\n", id); |
1144 |
return -EINVAL; |
1145 |
} |
1146 |
|
1147 |
return 0; |
1148 |
} |
1149 |
|
1150 |
static int ezusb_xmit(struct sk_buff *skb, struct net_device *net_dev) |
1151 |
{ |
1152 |
struct orinoco_private *priv = |
1153 |
(struct orinoco_private *) netdev_priv(net_dev); |
1154 |
struct net_device_stats *stats = &priv->stats; |
1155 |
struct ezusb_priv *dev = priv->card; |
1156 |
int err = 0; |
1157 |
char *p; |
1158 |
struct ethhdr *eh; |
1159 |
int len, data_len, data_off; |
1160 |
u16 tx_control; |
1161 |
unsigned long flags; |
1162 |
struct request_context *ctx; |
1163 |
u8 *buf; |
1164 |
int tx_size; |
1165 |
|
1166 |
TRACE_ENTER(net_dev->name); |
1167 |
|
1168 |
if (!netif_running(net_dev)) { |
1169 |
printk(KERN_ERR "%s: Tx on stopped device!\n", |
1170 |
net_dev->name); |
1171 |
TRACE_EXIT(net_dev->name); |
1172 |
return 1; |
1173 |
} |
1174 |
|
1175 |
if (netif_queue_stopped(net_dev)) { |
1176 |
printk(KERN_DEBUG "%s: Tx while transmitter busy!\n", |
1177 |
net_dev->name); |
1178 |
TRACE_EXIT(net_dev->name); |
1179 |
return 1; |
1180 |
} |
1181 |
|
1182 |
if (orinoco_lock(priv, &flags) != 0) { |
1183 |
printk(KERN_ERR |
1184 |
"%s: orinoco_xmit() called while hw_unavailable\n", |
1185 |
net_dev->name); |
1186 |
TRACE_EXIT(net_dev->name); |
1187 |
return 1; |
1188 |
} |
1189 |
|
1190 |
if (!netif_carrier_ok(net_dev) || |
1191 |
(priv->iw_mode == IW_MODE_MONITOR)) { |
1192 |
/* Oops, the firmware hasn't established a connection, |
1193 |
silently drop the packet (this seems to be the |
1194 |
safest approach). */ |
1195 |
stats->tx_errors++; |
1196 |
orinoco_unlock(priv, &flags); |
1197 |
dev_kfree_skb(skb); |
1198 |
TRACE_EXIT(net_dev->name); |
1199 |
return 0; |
1200 |
} |
1201 |
|
1202 |
ctx = ezusb_alloc_ctx(dev, EZUSB_RID_TX, 0); |
1203 |
if (!ctx) { |
1204 |
err = -ENOMEM; |
1205 |
goto fail; |
1206 |
} |
1207 |
memset(ctx->buf, 0, BULK_BUF_SIZE); |
1208 |
buf = ctx->buf->data; |
1209 |
|
1210 |
/* Length of the packet body */ |
1211 |
/* FIXME: what if the skb is smaller than this? */ |
1212 |
len = max_t(int, skb->len - ETH_HLEN, ETH_ZLEN - ETH_HLEN); |
1213 |
|
1214 |
eh = (struct ethhdr *) skb->data; |
1215 |
|
1216 |
tx_control = cpu_to_le16(0); |
1217 |
memcpy(buf, &tx_control, sizeof(tx_control)); |
1218 |
buf += sizeof(tx_control); |
1219 |
/* Encapsulate Ethernet-II frames */ |
1220 |
if (ntohs(eh->h_proto) > ETH_DATA_LEN) { /* Ethernet-II frame */ |
1221 |
struct header_struct *hdr = (void *) buf; |
1222 |
buf += sizeof(*hdr); |
1223 |
data_len = len; |
1224 |
data_off = sizeof(tx_control) + sizeof(*hdr); |
1225 |
p = skb->data + ETH_HLEN; |
1226 |
|
1227 |
/* 802.3 header */ |
1228 |
memcpy(hdr->dest, eh->h_dest, ETH_ALEN); |
1229 |
memcpy(hdr->src, eh->h_source, ETH_ALEN); |
1230 |
hdr->len = htons(data_len + ENCAPS_OVERHEAD); |
1231 |
|
1232 |
/* 802.2 header */ |
1233 |
memcpy(&hdr->dsap, &encaps_hdr, sizeof(encaps_hdr)); |
1234 |
|
1235 |
hdr->ethertype = eh->h_proto; |
1236 |
} else { /* IEEE 802.3 frame */ |
1237 |
data_len = len + ETH_HLEN; |
1238 |
data_off = sizeof(tx_control); |
1239 |
p = skb->data; |
1240 |
} |
1241 |
|
1242 |
memcpy(buf, p, data_len); |
1243 |
buf += data_len; |
1244 |
|
1245 |
/* Finally, we actually initiate the send */ |
1246 |
netif_stop_queue(net_dev); |
1247 |
|
1248 |
/* The card may behave better if we send evenly sized usb transfers */ |
1249 |
tx_size = ALIGN(buf - ctx->buf->data, 2); |
1250 |
|
1251 |
err = ezusb_access_ltv(dev, ctx, tx_size, NULL, |
1252 |
EZUSB_FRAME_DATA, NULL, 0, NULL); |
1253 |
|
1254 |
if (err) { |
1255 |
netif_start_queue(net_dev); |
1256 |
printk(KERN_ERR "%s: Error %d transmitting packet\n", |
1257 |
net_dev->name, err); |
1258 |
stats->tx_errors++; |
1259 |
goto fail; |
1260 |
} |
1261 |
|
1262 |
net_dev->trans_start = jiffies; |
1263 |
stats->tx_bytes += data_off + data_len; |
1264 |
|
1265 |
orinoco_unlock(priv, &flags); |
1266 |
|
1267 |
dev_kfree_skb(skb); |
1268 |
|
1269 |
TRACE_EXIT(net_dev->name); |
1270 |
|
1271 |
return 0; |
1272 |
fail: |
1273 |
TRACE_EXIT(net_dev->name); |
1274 |
|
1275 |
orinoco_unlock(priv, &flags); |
1276 |
return err; |
1277 |
} |
1278 |
|
1279 |
static int ezusb_allocate(struct hermes *hw, u16 size, u16 *fid) |
1280 |
{ |
1281 |
*fid = EZUSB_RID_TX; |
1282 |
return 0; |
1283 |
} |
1284 |
|
1285 |
|
1286 |
static int ezusb_hard_reset(struct orinoco_private *priv) |
1287 |
{ |
1288 |
struct ezusb_priv *dev = priv->card; |
1289 |
int retval = ezusb_8051_cpucs(dev, 1); |
1290 |
|
1291 |
if (retval < 0) { |
1292 |
err("Failed to reset"); |
1293 |
return retval; |
1294 |
} |
1295 |
|
1296 |
retval = ezusb_8051_cpucs(dev, 0); |
1297 |
if (retval < 0) { |
1298 |
err("Failed to unreset"); |
1299 |
return retval; |
1300 |
} |
1301 |
|
1302 |
dbg("sending control message"); |
1303 |
retval = usb_control_msg(dev->udev, |
1304 |
usb_sndctrlpipe(dev->udev, 0), |
1305 |
EZUSB_REQUEST_TRIGER, |
1306 |
USB_TYPE_VENDOR | USB_RECIP_DEVICE | |
1307 |
USB_DIR_OUT, 0x0, 0x0, NULL, 0, |
1308 |
DEF_TIMEOUT); |
1309 |
if (retval < 0) { |
1310 |
err("EZUSB_REQUEST_TRIGER failed retval %d", retval); |
1311 |
return retval; |
1312 |
} |
1313 |
#if 0 |
1314 |
dbg("Sending EZUSB_REQUEST_TRIG_AC"); |
1315 |
retval = usb_control_msg(dev->udev, |
1316 |
usb_sndctrlpipe(dev->udev, 0), |
1317 |
EZUSB_REQUEST_TRIG_AC, |
1318 |
USB_TYPE_VENDOR | USB_RECIP_DEVICE | |
1319 |
USB_DIR_OUT, 0x00FA, 0x0, NULL, 0, |
1320 |
DEF_TIMEOUT); |
1321 |
if (retval < 0) { |
1322 |
err("EZUSB_REQUEST_TRIG_AC failed retval %d", retval); |
1323 |
return retval; |
1324 |
} |
1325 |
#endif |
1326 |
|
1327 |
return 0; |
1328 |
} |
1329 |
|
1330 |
|
1331 |
static int ezusb_init(hermes_t *hw) |
1332 |
{ |
1333 |
struct ezusb_priv *dev = hw->priv; |
1334 |
int retval; |
1335 |
|
1336 |
BUG_ON(in_interrupt()); |
1337 |
BUG_ON(!dev); |
1338 |
|
1339 |
dev->reply_count = 0; |
1340 |
/* Write the MAGIC number on the simulated registers to keep |
1341 |
* orinoco.c happy */ |
1342 |
hermes_write_regn(hw, SWSUPPORT0, HERMES_MAGIC); |
1343 |
hermes_write_regn(hw, RXFID, EZUSB_RID_RX); |
1344 |
|
1345 |
ezusb_remove_in_urb(dev); |
1346 |
ezusb_submit_in_urb(dev); |
1347 |
|
1348 |
retval = ezusb_write_ltv(hw, 0, EZUSB_RID_INIT1, |
1349 |
HERMES_BYTES_TO_RECLEN(2), "\x10\x00"); |
1350 |
if (retval < 0) { |
1351 |
printk(KERN_ERR PFX "EZUSB_RID_INIT1 error %d\n", retval); |
1352 |
return retval; |
1353 |
} |
1354 |
|
1355 |
retval = ezusb_docmd_wait(hw, HERMES_CMD_INIT, 0, NULL); |
1356 |
if (retval < 0) { |
1357 |
printk(KERN_ERR PFX "HERMES_CMD_INIT error %d\n", retval); |
1358 |
return retval; |
1359 |
} |
1360 |
|
1361 |
return 0; |
1362 |
} |
1363 |
|
1364 |
static void ezusb_bulk_in_callback(struct urb *urb, struct pt_regs *regs) |
1365 |
{ |
1366 |
struct ezusb_priv *dev = (struct ezusb_priv *) urb->context; |
1367 |
struct ezusb_packet *ans = urb->transfer_buffer; |
1368 |
u16 crc; |
1369 |
u16 hermes_rid; |
1370 |
|
1371 |
if (dev->udev == NULL) { |
1372 |
dbg("disconnected"); |
1373 |
return; |
1374 |
} |
1375 |
|
1376 |
if (urb->status == -ETIMEDOUT) { |
1377 |
/* When a device gets unplugged we get this every time |
1378 |
* we resubmit, flooding the logs. Since we don't use |
1379 |
* USB timeouts, it shouldn't happen any other time*/ |
1380 |
warn("%s: urb timed out, not resubmiting", __FUNCTION__); |
1381 |
return; |
1382 |
} |
1383 |
if (urb->status == -ECONNABORTED) { |
1384 |
warn("%s: connection abort, resubmiting urb", |
1385 |
__FUNCTION__); |
1386 |
goto resubmit; |
1387 |
} |
1388 |
if ((urb->status == -EILSEQ) |
1389 |
|| (urb->status == -ENOENT) |
1390 |
|| (urb->status == -ECONNRESET)) { |
1391 |
dbg("status %d, not resubmiting", urb->status); |
1392 |
return; |
1393 |
} |
1394 |
if (urb->status) |
1395 |
dbg("status: %d length: %d", |
1396 |
urb->status, urb->actual_length); |
1397 |
if (urb->actual_length < sizeof(*ans)) { |
1398 |
err("%s: short read, ignoring", __FUNCTION__); |
1399 |
goto resubmit; |
1400 |
} |
1401 |
crc = build_crc((u8 *) ans); |
1402 |
ezusb_req_le_to_cpu(ans); |
1403 |
if (ans->crc != crc) { |
1404 |
err("CRC error, ignoring packet"); |
1405 |
goto resubmit; |
1406 |
} |
1407 |
|
1408 |
hermes_rid = le16_to_cpu(ans->hermes_rid); |
1409 |
if ((hermes_rid != EZUSB_RID_RX) && !EZUSB_IS_INFO(hermes_rid)) { |
1410 |
ezusb_request_in_callback(dev, urb); |
1411 |
} else if (dev->net_dev) { |
1412 |
struct net_device *net_dev = dev->net_dev; |
1413 |
struct orinoco_private *priv = netdev_priv(net_dev); |
1414 |
hermes_t *hw = &priv->hw; |
1415 |
|
1416 |
if (hermes_rid == EZUSB_RID_RX) { |
1417 |
__orinoco_ev_rx(net_dev, hw); |
1418 |
} else { |
1419 |
hermes_write_regn(hw, INFOFID, |
1420 |
le16_to_cpu(ans->hermes_rid)); |
1421 |
__orinoco_ev_info(net_dev, hw); |
1422 |
} |
1423 |
} |
1424 |
|
1425 |
resubmit: |
1426 |
if (dev->udev) |
1427 |
ezusb_submit_in_urb(dev); |
1428 |
} |
1429 |
|
1430 |
static inline void ezusb_delete(struct ezusb_priv *dev) |
1431 |
{ |
1432 |
struct net_device *net_dev; |
1433 |
struct list_head *item; |
1434 |
struct list_head *tmp_item; |
1435 |
unsigned long flags; |
1436 |
int retval; |
1437 |
|
1438 |
BUG_ON(in_interrupt()); |
1439 |
BUG_ON(!dev); |
1440 |
|
1441 |
net_dev = dev->net_dev; |
1442 |
down(&dev->sem); |
1443 |
|
1444 |
dev->udev = NULL; /* No timer will be rearmed from here */ |
1445 |
|
1446 |
retval = ezusb_remove_in_urb(dev); |
1447 |
if (retval) { |
1448 |
dbg("retval %d status %d", retval, dev->read_urb->status); |
1449 |
} |
1450 |
|
1451 |
restart_list: |
1452 |
spin_lock_irqsave(&dev->req_lock, flags); |
1453 |
list_for_each_safe(item, tmp_item, &dev->req_active) { |
1454 |
struct request_context *ctx; |
1455 |
|
1456 |
ctx = list_entry(item, struct request_context, list); |
1457 |
atomic_inc(&ctx->refcount); |
1458 |
|
1459 |
ctx->outurb->transfer_flags |= URB_ASYNC_UNLINK; |
1460 |
if (usb_unlink_urb(ctx->outurb) == -EINPROGRESS) { |
1461 |
spin_unlock_irqrestore(&dev->req_lock, flags); |
1462 |
wait_for_completion(&ctx->done); |
1463 |
} else { |
1464 |
spin_unlock_irqrestore(&dev->req_lock, flags); |
1465 |
} |
1466 |
del_timer_sync(&ctx->timer); |
1467 |
/* FIXME: there is an slight chance for the irq handler to |
1468 |
* be running */ |
1469 |
if (!list_empty(&ctx->list)) |
1470 |
ezusb_ctx_complete(ctx); |
1471 |
|
1472 |
ezusb_request_context_put(ctx); |
1473 |
goto restart_list; |
1474 |
} |
1475 |
spin_unlock_irqrestore(&dev->req_lock, flags); |
1476 |
|
1477 |
list_for_each_safe(item, tmp_item, &dev->req_pending) |
1478 |
ezusb_ctx_complete(list_entry(item, |
1479 |
struct request_context, list)); |
1480 |
|
1481 |
if (dev->read_urb->status == -EINPROGRESS) { |
1482 |
printk(KERN_ERR PFX "Some URB in progress\n"); |
1483 |
} |
1484 |
up(&dev->sem); |
1485 |
|
1486 |
kfree(dev->read_urb->transfer_buffer); |
1487 |
if (dev->bap_buf != NULL) |
1488 |
kfree(dev->bap_buf); |
1489 |
if (dev->read_urb != NULL) |
1490 |
usb_free_urb(dev->read_urb); |
1491 |
if (dev->net_dev) { |
1492 |
unregister_netdev(dev->net_dev); |
1493 |
free_orinocodev(dev->net_dev); |
1494 |
} |
1495 |
} |
1496 |
|
1497 |
static const struct hermes_ops ezusb_ops = { |
1498 |
.init = ezusb_init, |
1499 |
.docmd_wait = ezusb_docmd_wait, |
1500 |
.allocate = ezusb_allocate, |
1501 |
.read_ltv = ezusb_read_ltv, |
1502 |
.write_ltv = ezusb_write_ltv, |
1503 |
.bap_pread = ezusb_bap_pread |
1504 |
}; |
1505 |
|
1506 |
#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 5, 0) |
1507 |
static void *ezusb_probe(struct usb_device *udev, unsigned int ifnum, |
1508 |
const struct usb_device_id *id) |
1509 |
{ |
1510 |
struct usb_interface *interface = |
1511 |
&udev->actconfig->interface[ifnum]; |
1512 |
#else |
1513 |
static int ezusb_probe(struct usb_interface *interface, |
1514 |
const struct usb_device_id *id) |
1515 |
{ |
1516 |
struct usb_device *udev = interface_to_usbdev(interface); |
1517 |
#endif |
1518 |
struct orinoco_private *priv; |
1519 |
struct net_device *net_dev; |
1520 |
hermes_t *hw; |
1521 |
struct ezusb_priv *dev = NULL; |
1522 |
struct usb_interface_descriptor *iface_desc; |
1523 |
struct usb_endpoint_descriptor *ep; |
1524 |
int card_variant = -1; |
1525 |
const struct firmware *fw_entry; |
1526 |
int retval = 0; |
1527 |
int i; |
1528 |
|
1529 |
/* See if the device offered us matches what we can accept */ |
1530 |
|
1531 |
if (usb_match_id(interface, ezusb_varian1_table)) |
1532 |
card_variant = 0; |
1533 |
if (usb_match_id(interface, ezusb_varian2_table)) |
1534 |
card_variant = 1; |
1535 |
|
1536 |
if (force_unsupported) |
1537 |
card_variant = -1; |
1538 |
|
1539 |
if (card_variant == -1) { |
1540 |
err("Device is not supported (you may want to set" |
1541 |
" force_unsupported=1)"); |
1542 |
if (!force_unsupported) |
1543 |
return_probe(NULL, -ENODEV); |
1544 |
err("Trying to handle device anyway as requested"); |
1545 |
} |
1546 |
|
1547 |
net_dev = alloc_orinocodev(sizeof(*dev), ezusb_hard_reset); |
1548 |
if (!net_dev) { |
1549 |
err("Couldn't allocate net_dev"); |
1550 |
goto exit; |
1551 |
} |
1552 |
|
1553 |
priv = netdev_priv(net_dev); |
1554 |
hw = &priv->hw; |
1555 |
|
1556 |
dev = priv->card; |
1557 |
|
1558 |
init_MUTEX(&dev->sem); |
1559 |
spin_lock_init(&dev->reply_count_lock); |
1560 |
|
1561 |
spin_lock_init(&dev->req_lock); |
1562 |
INIT_LIST_HEAD(&dev->req_pending); |
1563 |
INIT_LIST_HEAD(&dev->req_active); |
1564 |
|
1565 |
dev->udev = udev; |
1566 |
|
1567 |
hw->iobase = (unsigned long) &dev->hermes_reg_fake; |
1568 |
hw->io_space = HERMES_MEM; |
1569 |
hw->reg_spacing = HERMES_16BIT_REGSPACING; |
1570 |
hw->priv = dev; |
1571 |
hw->ops = &ezusb_ops; |
1572 |
net_dev->hard_start_xmit = ezusb_xmit; |
1573 |
|
1574 |
priv->irq_no_disable = 1; |
1575 |
|
1576 |
/* set up the endpoint information */ |
1577 |
/* check out the endpoints */ |
1578 |
|
1579 |
iface_desc = &usb_get_desc(interface->altsetting[0]); |
1580 |
for (i = 0; i < iface_desc->bNumEndpoints; ++i) { |
1581 |
ep = &usb_get_desc(interface->altsetting[0].endpoint[i]); |
1582 |
|
1583 |
if (((ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK) |
1584 |
== USB_DIR_IN) && |
1585 |
((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) |
1586 |
== USB_ENDPOINT_XFER_BULK)) { |
1587 |
/* we found a bulk in endpoint */ |
1588 |
if (dev->read_urb != NULL) { |
1589 |
warn("Found a second bulk in ep, ignored"); |
1590 |
continue; |
1591 |
} |
1592 |
|
1593 |
dev->read_urb = usb_alloc_urb(0, GFP_KERNEL); |
1594 |
if (!dev->read_urb) { |
1595 |
err("No free urbs available"); |
1596 |
goto error; |
1597 |
} |
1598 |
if (ep->wMaxPacketSize != 64) |
1599 |
warn("bulk in: wMaxPacketSize!= 64"); |
1600 |
if (ep->bEndpointAddress != (2 | USB_DIR_IN)) |
1601 |
warn("bulk in: bEndpointAddress: %d", |
1602 |
ep->bEndpointAddress); |
1603 |
dev->read_pipe = usb_rcvbulkpipe(udev, |
1604 |
ep-> |
1605 |
bEndpointAddress); |
1606 |
dev->read_urb->transfer_buffer = |
1607 |
kmalloc(BULK_BUF_SIZE, GFP_KERNEL); |
1608 |
if (!dev->read_urb->transfer_buffer) { |
1609 |
err("Couldn't allocate IN buffer"); |
1610 |
goto error; |
1611 |
} |
1612 |
} |
1613 |
|
1614 |
if (((ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK) |
1615 |
== USB_DIR_OUT) && |
1616 |
((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) |
1617 |
== USB_ENDPOINT_XFER_BULK)) { |
1618 |
/* we found a bulk out endpoint */ |
1619 |
if (dev->bap_buf != NULL) { |
1620 |
warn("Found a second bulk out ep, ignored"); |
1621 |
continue; |
1622 |
} |
1623 |
|
1624 |
if (ep->wMaxPacketSize != 64) |
1625 |
warn("bulk out: wMaxPacketSize != 64"); |
1626 |
if (ep->bEndpointAddress != 2) |
1627 |
warn("bulk out: bEndpointAddress: %d", |
1628 |
ep->bEndpointAddress); |
1629 |
dev->write_pipe = usb_sndbulkpipe(udev, |
1630 |
ep-> |
1631 |
bEndpointAddress); |
1632 |
dev->bap_buf = kmalloc(BULK_BUF_SIZE, GFP_KERNEL); |
1633 |
if (!dev->bap_buf) { |
1634 |
err("Couldn't allocate bulk_out_buffer"); |
1635 |
goto error; |
1636 |
} |
1637 |
} |
1638 |
} |
1639 |
if (!dev->bap_buf || !dev->read_urb) { |
1640 |
err("Didn't find the required bulk endpoints"); |
1641 |
goto error; |
1642 |
} |
1643 |
|
1644 |
if (card_variant != -1) |
1645 |
dev->card_variant = card_variant; |
1646 |
else |
1647 |
dev->card_variant = default_card_variant; |
1648 |
|
1649 |
if (request_firmware(&fw_entry, "orinoco_ezusb_fw", |
1650 |
fw_dev_param) == 0) { |
1651 |
firmware.size = fw_entry->size; |
1652 |
firmware.code = fw_entry->data; |
1653 |
find_fw_variant_offset(&firmware); |
1654 |
} |
1655 |
if (firmware.size && firmware.code) { |
1656 |
ezusb_firmware_download(dev, &firmware); |
1657 |
} else { |
1658 |
err("No firmware to download"); |
1659 |
goto error; |
1660 |
} |
1661 |
|
1662 |
if (ezusb_hard_reset(priv) < 0) { |
1663 |
err("Cannot reset the device"); |
1664 |
goto error; |
1665 |
} |
1666 |
|
1667 |
/* If the firmware is already downloaded orinoco.c will call |
1668 |
* ezusb_init but if the firmware is not already there, that will make |
1669 |
* the kernel very unstable, so we try initializing here and quit in |
1670 |
* case of error */ |
1671 |
if (ezusb_init(hw) < 0) { |
1672 |
err("Couldn't initialize the device"); |
1673 |
err("Firmware may not be downloaded or may be wrong."); |
1674 |
if (card_variant == -1) { |
1675 |
err("Replug the device to pretend it is the other" |
1676 |
" variant"); |
1677 |
default_card_variant = !default_card_variant; |
1678 |
} |
1679 |
goto error; |
1680 |
} |
1681 |
if (card_variant == -1) { |
1682 |
printk(KERN_NOTICE PFX "Your device variant seems to be " |
1683 |
"0x%02X, please send this message and the output " |
1684 |
"of 'lsusb -v' to orinoco-usb-devel@ranty.ddts.net", |
1685 |
dev->card_variant); |
1686 |
} |
1687 |
|
1688 |
SET_MODULE_OWNER(net_dev); |
1689 |
SET_NETDEV_DEV(net_dev, &interface->dev); |
1690 |
dev->net_dev = net_dev; |
1691 |
if (register_netdev(net_dev) != 0) { |
1692 |
dev->net_dev = NULL; |
1693 |
err("%s: register_netdev() failed", __FUNCTION__); |
1694 |
goto error; |
1695 |
} |
1696 |
goto exit; |
1697 |
|
1698 |
error: |
1699 |
ezusb_delete(dev); |
1700 |
if (net_dev) { |
1701 |
/* dev->net_dev was 0, so ezusb_delete() didn't free it */ |
1702 |
free_orinocodev(net_dev); |
1703 |
} |
1704 |
dev = NULL; |
1705 |
retval = -EFAULT; |
1706 |
exit: |
1707 |
if (fw_entry) { |
1708 |
firmware.code = NULL; |
1709 |
firmware.size = 0; |
1710 |
release_firmware(fw_entry); |
1711 |
} |
1712 |
usb_set_intfdata(interface, dev); |
1713 |
return_probe(dev, retval); |
1714 |
} |
1715 |
|
1716 |
|
1717 |
#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 5, 0) |
1718 |
static void ezusb_disconnect(struct usb_device *udev, void *ptr) |
1719 |
{ |
1720 |
struct ezusb_priv *dev = ptr; |
1721 |
#else |
1722 |
static void ezusb_disconnect(struct usb_interface *intf) |
1723 |
{ |
1724 |
struct ezusb_priv *dev = usb_get_intfdata(intf); |
1725 |
usb_set_intfdata(intf, NULL); |
1726 |
#endif |
1727 |
ezusb_delete(dev); |
1728 |
printk(KERN_INFO PFX "Disconnected\n"); |
1729 |
} |
1730 |
|
1731 |
|
1732 |
/* usb specific object needed to register this driver with the usb subsystem */ |
1733 |
static struct usb_driver orinoco_driver = { |
1734 |
#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,4,19)) |
1735 |
.owner = THIS_MODULE, |
1736 |
#endif |
1737 |
.name = DRIVER_NAME, |
1738 |
.probe = ezusb_probe, |
1739 |
.disconnect = ezusb_disconnect, |
1740 |
.id_table = ezusb_table, |
1741 |
}; |
1742 |
|
1743 |
/* Can't be declared "const" or the whole __initdata section will |
1744 |
* become const */ |
1745 |
static char version[] __initdata = DRIVER_NAME " " DRIVER_VERSION |
1746 |
" (Manuel Estrada Sainz <ranty@debian.org>)"; |
1747 |
|
1748 |
static int __init ezusb_module_init(void) |
1749 |
{ |
1750 |
int err; |
1751 |
|
1752 |
printk(KERN_DEBUG "%s\n", version); |
1753 |
|
1754 |
if (firmware.size) { |
1755 |
find_fw_variant_offset(&firmware); |
1756 |
register_firmware("orinoco_ezusb_fw", firmware.code, |
1757 |
firmware.size); |
1758 |
} |
1759 |
|
1760 |
/* register this driver with the USB subsystem */ |
1761 |
err = usb_register(&orinoco_driver); |
1762 |
if (err < 0) { |
1763 |
printk(KERN_ERR PFX "usb_register failed, error %d\n", |
1764 |
err); |
1765 |
return err; |
1766 |
} |
1767 |
|
1768 |
return 0; |
1769 |
} |
1770 |
|
1771 |
static void __exit ezusb_module_exit(void) |
1772 |
{ |
1773 |
/* deregister this driver with the USB subsystem */ |
1774 |
usb_deregister(&orinoco_driver); |
1775 |
} |
1776 |
|
1777 |
|
1778 |
module_init(ezusb_module_init); |
1779 |
module_exit(ezusb_module_exit); |
1780 |
|
1781 |
MODULE_AUTHOR("Manuel Estrada Sainz <ranty@debian.org>"); |
1782 |
MODULE_DESCRIPTION |
1783 |
("Driver for Orinoco wireless LAN cards using EZUSB bridge"); |
1784 |
MODULE_LICENSE("Dual MPL/GPL"); |