4 * Copyright (c) 2003 Manuel Estrada Sainz
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/
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.
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.
27 * Queueing code based on linux-wlan-ng 0.2.1-pre5
29 * Copyright (C) 1999 AbsoluteValue Systems, Inc. All Rights Reserved.
31 * The license is the same as above.
33 * Initialy based on USB Skeleton driver - 0.7
35 * Copyright (c) 2001 Greg Kroah-Hartman (greg@kroah.com)
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.
42 * NOTE: The original USB Skeleton driver is GPL, but all that code is
43 * gone so MPL/GPL applies.
46 #define DRIVER_NAME "orinoco_usb"
47 #define PFX DRIVER_NAME ": "
49 #include <linux/module.h>
50 #include <linux/kernel.h>
51 #include <linux/sched.h>
52 #include <linux/signal.h>
53 #include <linux/errno.h>
54 #include <linux/poll.h>
55 #include <linux/init.h>
56 #include <linux/slab.h>
57 #include <linux/fcntl.h>
58 #include <linux/spinlock.h>
59 #include <linux/list.h>
60 #include <linux/smp_lock.h>
61 #include <linux/usb.h>
62 #include <linux/timer.h>
64 #include <linux/netdevice.h>
65 #include <linux/if_arp.h>
66 #include <linux/etherdevice.h>
67 #include <linux/wireless.h>
68 #include <linux/firmware.h>
72 #ifndef URB_ASYNC_UNLINK
73 #define URB_ASYNC_UNLINK 0
76 /* 802.2 LLC/SNAP header used for Ethernet encapsulation over 802.11 */
77 static const u8 encaps_hdr
[] = {0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00};
78 #define ENCAPS_OVERHEAD (sizeof(encaps_hdr) + 2)
80 struct header_struct
{
92 } __attribute__ ((packed
));
99 static struct ez_usb_fw firmware
= {
104 #ifdef CONFIG_USB_DEBUG
105 static int debug
= 1;
110 /* Debugging macros */
112 #define dbg(format, arg...) \
113 do { if (debug) printk(KERN_DEBUG PFX "%s: " format "\n", \
114 __func__ , ## arg); } while (0)
116 #define err(format, arg...) \
117 do { printk(KERN_ERR PFX format "\n", ## arg); } while (0)
119 /* Module paramaters */
120 module_param(debug
, int, 0644);
121 MODULE_PARM_DESC(debug
, "Debug enabled or not");
123 MODULE_FIRMWARE("orinoco_ezusb_fw");
126 * Under some conditions, the card gets stuck and stops paying attention
127 * to the world (i.e. data communication stalls) until we do something to
128 * it. Sending an INQ_TALLIES command seems to be enough and should be
129 * harmless otherwise. This behaviour has been observed when using the
130 * driver on a systemimager client during installation. In the past a
131 * timer was used to send INQ_TALLIES commands when there was no other
132 * activity, but it was troublesome and was removed.
135 #define USB_COMPAQ_VENDOR_ID 0x049f /* Compaq Computer Corp. */
136 #define USB_COMPAQ_WL215_ID 0x001f /* Compaq WL215 USB Adapter */
137 #define USB_COMPAQ_W200_ID 0x0076 /* Compaq W200 USB Adapter */
138 #define USB_HP_WL215_ID 0x0082 /* Compaq WL215 USB Adapter */
140 #define USB_MELCO_VENDOR_ID 0x0411
141 #define USB_BUFFALO_L11_ID 0x0006 /* BUFFALO WLI-USB-L11 */
142 #define USB_BUFFALO_L11G_WR_ID 0x000B /* BUFFALO WLI-USB-L11G-WR */
143 #define USB_BUFFALO_L11G_ID 0x000D /* BUFFALO WLI-USB-L11G */
145 #define USB_LUCENT_VENDOR_ID 0x047E /* Lucent Technologies */
146 #define USB_LUCENT_ORINOCO_ID 0x0300 /* Lucent/Agere Orinoco USB Client */
148 #define USB_AVAYA8_VENDOR_ID 0x0D98
149 #define USB_AVAYAE_VENDOR_ID 0x0D9E
150 #define USB_AVAYA_WIRELESS_ID 0x0300 /* Avaya Wireless USB Card */
152 #define USB_AGERE_VENDOR_ID 0x0D4E /* Agere Systems */
153 #define USB_AGERE_MODEL0801_ID 0x1000 /* Wireless USB Card Model 0801 */
154 #define USB_AGERE_MODEL0802_ID 0x1001 /* Wireless USB Card Model 0802 */
155 #define USB_AGERE_REBRANDED_ID 0x047A /* WLAN USB Card */
157 #define USB_ELSA_VENDOR_ID 0x05CC
158 #define USB_ELSA_AIRLANCER_ID 0x3100 /* ELSA AirLancer USB-11 */
160 #define USB_LEGEND_VENDOR_ID 0x0E7C
161 #define USB_LEGEND_JOYNET_ID 0x0300 /* Joynet WLAN USB Card */
163 #define USB_SAMSUNG_VENDOR_ID 0x04E8
164 #define USB_SAMSUNG_SEW2001U1_ID 0x5002 /* Samsung SEW-2001u Card */
165 #define USB_SAMSUNG_SEW2001U2_ID 0x5B11 /* Samsung SEW-2001u Card */
166 #define USB_SAMSUNG_SEW2003U_ID 0x7011 /* Samsung SEW-2003U Card */
168 #define USB_IGATE_VENDOR_ID 0x0681
169 #define USB_IGATE_IGATE_11M_ID 0x0012 /* I-GATE 11M USB Card */
171 #define USB_FUJITSU_VENDOR_ID 0x0BF8
172 #define USB_FUJITSU_E1100_ID 0x1002 /* connect2AIR WLAN E-1100 USB */
174 #define USB_2WIRE_VENDOR_ID 0x1630
175 #define USB_2WIRE_WIRELESS_ID 0xff81 /* 2Wire Wireless USB adapter */
178 #define EZUSB_REQUEST_FW_TRANS 0xA0
179 #define EZUSB_REQUEST_TRIGER 0xAA
180 #define EZUSB_REQUEST_TRIG_AC 0xAC
181 #define EZUSB_CPUCS_REG 0x7F92
183 #define EZUSB_RID_TX 0x0700
184 #define EZUSB_RID_RX 0x0701
185 #define EZUSB_RID_INIT1 0x0702
186 #define EZUSB_RID_ACK 0x0710
187 #define EZUSB_RID_READ_PDA 0x0800
188 #define EZUSB_RID_PROG_INIT 0x0852
189 #define EZUSB_RID_PROG_SET_ADDR 0x0853
190 #define EZUSB_RID_PROG_BYTES 0x0854
191 #define EZUSB_RID_PROG_END 0x0855
192 #define EZUSB_RID_DOCMD 0x0860
194 /* Recognize info frames */
195 #define EZUSB_IS_INFO(id) ((id >= 0xF000) && (id <= 0xF2FF))
197 #define EZUSB_MAGIC 0x0210
199 #define EZUSB_FRAME_DATA 1
200 #define EZUSB_FRAME_CONTROL 2
202 #define DEF_TIMEOUT (3*HZ)
204 #define BULK_BUF_SIZE 2048
206 #define MAX_DL_SIZE (BULK_BUF_SIZE - sizeof(struct ezusb_packet))
208 #define FW_BUF_SIZE 64
209 #define FW_VAR_OFFSET_PTR 0x359
210 #define FW_VAR_VALUE 0
211 #define FW_HOLE_START 0x100
212 #define FW_HOLE_END 0x300
214 struct ezusb_packet
{
215 __le16 magic
; /* 0x0210 */
218 __le16 frame_type
; /* 0x01 for data frames, 0x02 otherwise */
219 __le16 size
; /* transport size */
220 __le16 crc
; /* CRC up to here */
224 } __attribute__ ((packed
));
226 /* Table of devices that work or may work with this driver */
227 static struct usb_device_id ezusb_table
[] = {
228 {USB_DEVICE(USB_COMPAQ_VENDOR_ID
, USB_COMPAQ_WL215_ID
)},
229 {USB_DEVICE(USB_COMPAQ_VENDOR_ID
, USB_HP_WL215_ID
)},
230 {USB_DEVICE(USB_COMPAQ_VENDOR_ID
, USB_COMPAQ_W200_ID
)},
231 {USB_DEVICE(USB_MELCO_VENDOR_ID
, USB_BUFFALO_L11_ID
)},
232 {USB_DEVICE(USB_MELCO_VENDOR_ID
, USB_BUFFALO_L11G_WR_ID
)},
233 {USB_DEVICE(USB_MELCO_VENDOR_ID
, USB_BUFFALO_L11G_ID
)},
234 {USB_DEVICE(USB_LUCENT_VENDOR_ID
, USB_LUCENT_ORINOCO_ID
)},
235 {USB_DEVICE(USB_AVAYA8_VENDOR_ID
, USB_AVAYA_WIRELESS_ID
)},
236 {USB_DEVICE(USB_AVAYAE_VENDOR_ID
, USB_AVAYA_WIRELESS_ID
)},
237 {USB_DEVICE(USB_AGERE_VENDOR_ID
, USB_AGERE_MODEL0801_ID
)},
238 {USB_DEVICE(USB_AGERE_VENDOR_ID
, USB_AGERE_MODEL0802_ID
)},
239 {USB_DEVICE(USB_ELSA_VENDOR_ID
, USB_ELSA_AIRLANCER_ID
)},
240 {USB_DEVICE(USB_LEGEND_VENDOR_ID
, USB_LEGEND_JOYNET_ID
)},
241 {USB_DEVICE_VER(USB_SAMSUNG_VENDOR_ID
, USB_SAMSUNG_SEW2001U1_ID
,
243 {USB_DEVICE(USB_SAMSUNG_VENDOR_ID
, USB_SAMSUNG_SEW2001U2_ID
)},
244 {USB_DEVICE(USB_SAMSUNG_VENDOR_ID
, USB_SAMSUNG_SEW2003U_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 */
252 MODULE_DEVICE_TABLE(usb
, ezusb_table
);
254 /* Structure to hold all of our device specific stuff */
256 struct usb_device
*udev
;
257 struct net_device
*dev
;
260 struct list_head req_pending
;
261 struct list_head req_active
;
262 spinlock_t reply_count_lock
;
263 u16 hermes_reg_fake
[0x40];
265 struct urb
*read_urb
;
274 EZUSB_CTX_REQ_SUBMITTED
,
275 EZUSB_CTX_REQ_COMPLETE
,
276 EZUSB_CTX_RESP_RECEIVED
,
277 EZUSB_CTX_REQ_TIMEOUT
,
278 EZUSB_CTX_REQ_FAILED
,
279 EZUSB_CTX_RESP_TIMEOUT
,
280 EZUSB_CTX_REQSUBMIT_FAIL
,
284 struct request_context
{
285 struct list_head list
;
287 struct completion done
; /* Signals that CTX is dead */
289 struct urb
*outurb
; /* OUT for req pkt */
290 struct ezusb_priv
*upriv
;
291 struct ezusb_packet
*buf
;
293 struct timer_list timer
; /* Timeout handling */
294 enum ezusb_state state
; /* Current state */
295 /* the RID that we will wait for */
301 /* Forward declarations */
302 static void ezusb_ctx_complete(struct request_context
*ctx
);
303 static void ezusb_req_queue_run(struct ezusb_priv
*upriv
);
304 static void ezusb_bulk_in_callback(struct urb
*urb
);
306 static inline u8
ezusb_reply_inc(u8 count
)
314 static void ezusb_request_context_put(struct request_context
*ctx
)
316 if (!atomic_dec_and_test(&ctx
->refcount
))
319 WARN_ON(!ctx
->done
.done
);
320 BUG_ON(ctx
->outurb
->status
== -EINPROGRESS
);
321 BUG_ON(timer_pending(&ctx
->timer
));
322 usb_free_urb(ctx
->outurb
);
327 static inline void ezusb_mod_timer(struct ezusb_priv
*upriv
,
328 struct timer_list
*timer
,
329 unsigned long expire
)
333 mod_timer(timer
, expire
);
336 static void ezusb_request_timerfn(u_long _ctx
)
338 struct request_context
*ctx
= (void *) _ctx
;
340 ctx
->outurb
->transfer_flags
|= URB_ASYNC_UNLINK
;
341 if (usb_unlink_urb(ctx
->outurb
) == -EINPROGRESS
) {
342 ctx
->state
= EZUSB_CTX_REQ_TIMEOUT
;
344 ctx
->state
= EZUSB_CTX_RESP_TIMEOUT
;
345 dbg("couldn't unlink");
346 atomic_inc(&ctx
->refcount
);
348 ezusb_ctx_complete(ctx
);
349 ezusb_request_context_put(ctx
);
353 static struct request_context
*ezusb_alloc_ctx(struct ezusb_priv
*upriv
,
354 u16 out_rid
, u16 in_rid
)
356 struct request_context
*ctx
;
358 ctx
= kmalloc(sizeof(*ctx
), GFP_ATOMIC
);
362 memset(ctx
, 0, sizeof(*ctx
));
364 ctx
->buf
= kmalloc(BULK_BUF_SIZE
, GFP_ATOMIC
);
369 ctx
->outurb
= usb_alloc_urb(0, GFP_ATOMIC
);
377 ctx
->state
= EZUSB_CTX_START
;
378 ctx
->out_rid
= out_rid
;
379 ctx
->in_rid
= in_rid
;
381 atomic_set(&ctx
->refcount
, 1);
382 init_completion(&ctx
->done
);
384 init_timer(&ctx
->timer
);
385 ctx
->timer
.function
= ezusb_request_timerfn
;
386 ctx
->timer
.data
= (u_long
) ctx
;
391 /* Hopefully the real complete_all will soon be exported, in the mean
392 * while this should work. */
393 static inline void ezusb_complete_all(struct completion
*comp
)
401 static void ezusb_ctx_complete(struct request_context
*ctx
)
403 struct ezusb_priv
*upriv
= ctx
->upriv
;
406 spin_lock_irqsave(&upriv
->req_lock
, flags
);
408 list_del_init(&ctx
->list
);
410 spin_unlock_irqrestore(&upriv
->req_lock
, flags
);
411 ezusb_req_queue_run(upriv
);
412 spin_lock_irqsave(&upriv
->req_lock
, flags
);
415 switch (ctx
->state
) {
416 case EZUSB_CTX_COMPLETE
:
417 case EZUSB_CTX_REQSUBMIT_FAIL
:
418 case EZUSB_CTX_REQ_FAILED
:
419 case EZUSB_CTX_REQ_TIMEOUT
:
420 case EZUSB_CTX_RESP_TIMEOUT
:
421 spin_unlock_irqrestore(&upriv
->req_lock
, flags
);
423 if ((ctx
->out_rid
== EZUSB_RID_TX
) && upriv
->dev
) {
424 struct net_device
*dev
= upriv
->dev
;
425 struct orinoco_private
*priv
= ndev_priv(dev
);
426 struct net_device_stats
*stats
= &priv
->stats
;
428 if (ctx
->state
!= EZUSB_CTX_COMPLETE
)
433 netif_wake_queue(dev
);
435 ezusb_complete_all(&ctx
->done
);
436 ezusb_request_context_put(ctx
);
440 spin_unlock_irqrestore(&upriv
->req_lock
, flags
);
442 /* This is normal, as all request contexts get flushed
443 * when the device is disconnected */
444 err("Called, CTX not terminating, but device gone");
445 ezusb_complete_all(&ctx
->done
);
446 ezusb_request_context_put(ctx
);
450 err("Called, CTX not in terminating state.");
451 /* Things are really bad if this happens. Just leak
452 * the CTX because it may still be linked to the
453 * queue or the OUT urb may still be active.
454 * Just leaking at least prevents an Oops or Panic.
461 * ezusb_req_queue_run:
463 * Note: Only one active CTX at any one time, because there's no
464 * other (reliable) way to match the response URB to the correct
467 static void ezusb_req_queue_run(struct ezusb_priv
*upriv
)
470 struct request_context
*ctx
;
473 spin_lock_irqsave(&upriv
->req_lock
, flags
);
475 if (!list_empty(&upriv
->req_active
))
478 if (list_empty(&upriv
->req_pending
))
482 list_entry(upriv
->req_pending
.next
, struct request_context
,
485 if (!ctx
->upriv
->udev
)
488 /* We need to split this off to avoid a race condition */
489 list_move_tail(&ctx
->list
, &upriv
->req_active
);
491 if (ctx
->state
== EZUSB_CTX_QUEUED
) {
492 atomic_inc(&ctx
->refcount
);
493 result
= usb_submit_urb(ctx
->outurb
, GFP_ATOMIC
);
495 ctx
->state
= EZUSB_CTX_REQSUBMIT_FAIL
;
497 spin_unlock_irqrestore(&upriv
->req_lock
, flags
);
499 err("Fatal, failed to submit command urb."
500 " error=%d\n", result
);
502 ezusb_ctx_complete(ctx
);
503 ezusb_request_context_put(ctx
);
507 ctx
->state
= EZUSB_CTX_REQ_SUBMITTED
;
508 ezusb_mod_timer(ctx
->upriv
, &ctx
->timer
,
509 jiffies
+ DEF_TIMEOUT
);
513 spin_unlock_irqrestore(&upriv
->req_lock
, flags
);
519 static void ezusb_req_enqueue_run(struct ezusb_priv
*upriv
,
520 struct request_context
*ctx
)
524 spin_lock_irqsave(&upriv
->req_lock
, flags
);
526 if (!ctx
->upriv
->udev
) {
527 spin_unlock_irqrestore(&upriv
->req_lock
, flags
);
530 atomic_inc(&ctx
->refcount
);
531 list_add_tail(&ctx
->list
, &upriv
->req_pending
);
532 spin_unlock_irqrestore(&upriv
->req_lock
, flags
);
534 ctx
->state
= EZUSB_CTX_QUEUED
;
535 ezusb_req_queue_run(upriv
);
541 static void ezusb_request_out_callback(struct urb
*urb
)
544 enum ezusb_state state
;
545 struct request_context
*ctx
= urb
->context
;
546 struct ezusb_priv
*upriv
= ctx
->upriv
;
548 spin_lock_irqsave(&upriv
->req_lock
, flags
);
550 del_timer(&ctx
->timer
);
553 spin_unlock_irqrestore(&upriv
->req_lock
, flags
);
554 pr_warning("interrupt called with dead ctx");
560 if (urb
->status
== 0) {
562 case EZUSB_CTX_REQ_SUBMITTED
:
564 ctx
->state
= EZUSB_CTX_REQ_COMPLETE
;
565 /* reply URB still pending */
566 ezusb_mod_timer(upriv
, &ctx
->timer
,
567 jiffies
+ DEF_TIMEOUT
);
568 spin_unlock_irqrestore(&upriv
->req_lock
,
573 case EZUSB_CTX_RESP_RECEIVED
:
574 /* IN already received before this OUT-ACK */
575 ctx
->state
= EZUSB_CTX_COMPLETE
;
576 spin_unlock_irqrestore(&upriv
->req_lock
, flags
);
577 ezusb_ctx_complete(ctx
);
581 spin_unlock_irqrestore(&upriv
->req_lock
, flags
);
582 err("Unexpected state(0x%x, %d) in OUT URB",
587 /* If someone cancels the OUT URB then its status
588 * should be either -ECONNRESET or -ENOENT.
591 case EZUSB_CTX_REQ_SUBMITTED
:
592 case EZUSB_CTX_RESP_RECEIVED
:
593 ctx
->state
= EZUSB_CTX_REQ_FAILED
;
596 case EZUSB_CTX_REQ_FAILED
:
597 case EZUSB_CTX_REQ_TIMEOUT
:
598 spin_unlock_irqrestore(&upriv
->req_lock
, flags
);
600 ezusb_ctx_complete(ctx
);
604 spin_unlock_irqrestore(&upriv
->req_lock
, flags
);
606 err("Unexpected state(0x%x, %d) in OUT URB",
612 ezusb_request_context_put(ctx
);
615 static void ezusb_request_in_callback(struct ezusb_priv
*upriv
,
618 struct ezusb_packet
*ans
= urb
->transfer_buffer
;
619 struct request_context
*ctx
= NULL
;
620 enum ezusb_state state
;
623 /* Find the CTX on the active queue that requested this URB */
624 spin_lock_irqsave(&upriv
->req_lock
, flags
);
626 struct list_head
*item
;
628 list_for_each(item
, &upriv
->req_active
) {
629 struct request_context
*c
;
632 c
= list_entry(item
, struct request_context
, list
);
634 ezusb_reply_inc(c
->buf
->req_reply_count
);
635 if ((ans
->ans_reply_count
== reply_count
)
636 && (le16_to_cpu(ans
->hermes_rid
) == c
->in_rid
)) {
640 dbg("Skipped (0x%x/0x%x) (%d/%d)",
641 le16_to_cpu(ans
->hermes_rid
),
642 c
->in_rid
, ans
->ans_reply_count
, reply_count
);
647 spin_unlock_irqrestore(&upriv
->req_lock
, flags
);
648 err("%s: got unexpected RID: 0x%04X", __func__
,
649 le16_to_cpu(ans
->hermes_rid
));
650 ezusb_req_queue_run(upriv
);
654 /* The data we want is in the in buffer, exchange */
655 urb
->transfer_buffer
= ctx
->buf
;
656 ctx
->buf
= (void *) ans
;
657 ctx
->buf_length
= urb
->actual_length
;
661 case EZUSB_CTX_REQ_SUBMITTED
:
662 /* We have received our response URB before
663 * our request has been acknowledged. Do NOT
664 * destroy our CTX yet, because our OUT URB
667 ctx
->state
= EZUSB_CTX_RESP_RECEIVED
;
668 spin_unlock_irqrestore(&upriv
->req_lock
, flags
);
670 /* Let the machine continue running. */
673 case EZUSB_CTX_REQ_COMPLETE
:
674 /* This is the usual path: our request
675 * has already been acknowledged, and
676 * we have now received the reply.
678 ctx
->state
= EZUSB_CTX_COMPLETE
;
680 /* Stop the intimer */
681 del_timer(&ctx
->timer
);
682 spin_unlock_irqrestore(&upriv
->req_lock
, flags
);
684 /* Call the completion handler */
685 ezusb_ctx_complete(ctx
);
689 spin_unlock_irqrestore(&upriv
->req_lock
, flags
);
691 pr_warning("Matched IN URB, unexpected context state(0x%x)",
693 /* Throw this CTX away and try submitting another */
694 del_timer(&ctx
->timer
);
695 ctx
->outurb
->transfer_flags
|= URB_ASYNC_UNLINK
;
696 usb_unlink_urb(ctx
->outurb
);
697 ezusb_req_queue_run(upriv
);
703 static void ezusb_req_ctx_wait(struct ezusb_priv
*upriv
,
704 struct request_context
*ctx
)
706 switch (ctx
->state
) {
707 case EZUSB_CTX_QUEUED
:
708 case EZUSB_CTX_REQ_SUBMITTED
:
709 case EZUSB_CTX_REQ_COMPLETE
:
710 case EZUSB_CTX_RESP_RECEIVED
:
712 /* If we get called from a timer, timeout timers don't
713 * get the chance to run themselves. So we make sure
714 * that we don't sleep for ever */
715 int msecs
= DEF_TIMEOUT
* (1000 / HZ
);
716 while (!ctx
->done
.done
&& msecs
--)
719 wait_event_interruptible(ctx
->done
.wait
,
724 /* Done or failed - nothing to wait for */
729 static inline u16
build_crc(struct ezusb_packet
*data
)
732 u8
*bytes
= (u8
*)data
;
735 for (i
= 0; i
< 8; i
++)
736 crc
= (crc
<< 1) + bytes
[i
];
744 * if data == NULL and length > 0 the data is assumed to be already in
745 * the target buffer and only the header is filled.
748 static int ezusb_fill_req(struct ezusb_packet
*req
, u16 length
, u16 rid
,
749 const void *data
, u16 frame_type
, u8 reply_count
)
751 int total_size
= sizeof(*req
) + length
;
753 BUG_ON(total_size
> BULK_BUF_SIZE
);
755 req
->magic
= cpu_to_le16(EZUSB_MAGIC
);
756 req
->req_reply_count
= reply_count
;
757 req
->ans_reply_count
= 0;
758 req
->frame_type
= cpu_to_le16(frame_type
);
759 req
->size
= cpu_to_le16(length
+ 4);
760 req
->crc
= cpu_to_le16(build_crc(req
));
761 req
->hermes_len
= cpu_to_le16(HERMES_BYTES_TO_RECLEN(length
));
762 req
->hermes_rid
= cpu_to_le16(rid
);
764 memcpy(req
->data
, data
, length
);
768 static int ezusb_submit_in_urb(struct ezusb_priv
*upriv
)
771 void *cur_buf
= upriv
->read_urb
->transfer_buffer
;
773 if (upriv
->read_urb
->status
== -EINPROGRESS
) {
774 dbg("urb busy, not resubmiting");
778 usb_fill_bulk_urb(upriv
->read_urb
, upriv
->udev
, upriv
->read_pipe
,
779 cur_buf
, BULK_BUF_SIZE
,
780 ezusb_bulk_in_callback
, upriv
);
781 upriv
->read_urb
->transfer_flags
= 0;
782 retval
= usb_submit_urb(upriv
->read_urb
, GFP_ATOMIC
);
784 err("%s submit failed %d", __func__
, retval
);
790 static inline int ezusb_8051_cpucs(struct ezusb_priv
*upriv
, int reset
)
792 u8 res_val
= reset
; /* avoid argument promotion */
795 err("%s: !upriv->udev", __func__
);
798 return usb_control_msg(upriv
->udev
,
799 usb_sndctrlpipe(upriv
->udev
, 0),
800 EZUSB_REQUEST_FW_TRANS
,
801 USB_TYPE_VENDOR
| USB_RECIP_DEVICE
|
802 USB_DIR_OUT
, EZUSB_CPUCS_REG
, 0, &res_val
,
803 sizeof(res_val
), DEF_TIMEOUT
);
806 static int ezusb_firmware_download(struct ezusb_priv
*upriv
,
807 struct ez_usb_fw
*fw
)
809 u8 fw_buffer
[FW_BUF_SIZE
];
814 * This byte is 1 and should be replaced with 0. The offset is
815 * 0x10AD in version 0.0.6. The byte in question should follow
816 * the end of the code pointed to by the jump in the beginning
817 * of the firmware. Also, it is read by code located at 0x358.
819 variant_offset
= be16_to_cpup((__be16
*) &fw
->code
[FW_VAR_OFFSET_PTR
]);
820 if (variant_offset
>= fw
->size
) {
821 printk(KERN_ERR PFX
"Invalid firmware variant offset: "
822 "0x%04x\n", variant_offset
);
827 retval
= ezusb_8051_cpucs(upriv
, 1);
830 for (addr
= 0; addr
< fw
->size
; addr
+= FW_BUF_SIZE
) {
831 /* 0x100-0x300 should be left alone, it contains card
832 * specific data, like USB enumeration information */
833 if ((addr
>= FW_HOLE_START
) && (addr
< FW_HOLE_END
))
836 memcpy(fw_buffer
, &fw
->code
[addr
], FW_BUF_SIZE
);
837 if (variant_offset
>= addr
&&
838 variant_offset
< addr
+ FW_BUF_SIZE
) {
839 dbg("Patching card_variant byte at 0x%04X",
841 fw_buffer
[variant_offset
- addr
] = FW_VAR_VALUE
;
843 retval
= usb_control_msg(upriv
->udev
,
844 usb_sndctrlpipe(upriv
->udev
, 0),
845 EZUSB_REQUEST_FW_TRANS
,
846 USB_TYPE_VENDOR
| USB_RECIP_DEVICE
849 fw_buffer
, FW_BUF_SIZE
,
855 retval
= ezusb_8051_cpucs(upriv
, 0);
861 printk(KERN_ERR PFX
"Firmware download failed, error %d\n",
867 static int ezusb_access_ltv(struct ezusb_priv
*upriv
,
868 struct request_context
*ctx
,
869 u16 length
, const void *data
, u16 frame_type
,
870 void *ans_buff
, int ans_size
, u16
*ans_length
)
874 enum ezusb_state state
;
879 dbg("Device disconnected");
883 if (upriv
->read_urb
->status
!= -EINPROGRESS
)
884 err("%s: in urb not pending", __func__
);
886 /* protect upriv->reply_count, guarantee sequential numbers */
887 spin_lock_bh(&upriv
->reply_count_lock
);
888 req_size
= ezusb_fill_req(ctx
->buf
, length
, ctx
->out_rid
, data
,
889 frame_type
, upriv
->reply_count
);
890 usb_fill_bulk_urb(ctx
->outurb
, upriv
->udev
, upriv
->write_pipe
,
892 ezusb_request_out_callback
, ctx
);
895 upriv
->reply_count
= ezusb_reply_inc(upriv
->reply_count
);
897 ezusb_req_enqueue_run(upriv
, ctx
);
899 spin_unlock_bh(&upriv
->reply_count_lock
);
902 ezusb_req_ctx_wait(upriv
, ctx
);
906 case EZUSB_CTX_COMPLETE
:
907 retval
= ctx
->outurb
->status
;
910 case EZUSB_CTX_QUEUED
:
911 case EZUSB_CTX_REQ_SUBMITTED
:
915 err("%s: Unexpected context state %d", __func__
,
918 case EZUSB_CTX_REQ_TIMEOUT
:
919 case EZUSB_CTX_REQ_FAILED
:
920 case EZUSB_CTX_RESP_TIMEOUT
:
921 case EZUSB_CTX_REQSUBMIT_FAIL
:
922 printk(KERN_ERR PFX
"Access failed, resetting (state %d,"
923 " reply_count %d)\n", state
, upriv
->reply_count
);
924 upriv
->reply_count
= 0;
925 if (state
== EZUSB_CTX_REQ_TIMEOUT
926 || state
== EZUSB_CTX_RESP_TIMEOUT
) {
927 printk(KERN_ERR PFX
"ctx timed out\n");
930 printk(KERN_ERR PFX
"ctx failed\n");
937 struct ezusb_packet
*ans
= ctx
->buf
;
940 if (ans
->hermes_len
!= 0)
941 exp_len
= le16_to_cpu(ans
->hermes_len
) * 2 + 12;
945 if (exp_len
!= ctx
->buf_length
) {
946 err("%s: length mismatch for RID 0x%04x: "
947 "expected %d, got %d", __func__
,
948 ctx
->in_rid
, exp_len
, ctx
->buf_length
);
954 memcpy(ans_buff
, ans
->data
,
955 min_t(int, exp_len
, ans_size
));
957 *ans_length
= le16_to_cpu(ans
->hermes_len
);
960 ezusb_request_context_put(ctx
);
964 static int ezusb_write_ltv(hermes_t
*hw
, int bap
, u16 rid
,
965 u16 length
, const void *data
)
967 struct ezusb_priv
*upriv
= hw
->priv
;
969 struct request_context
*ctx
;
974 length
= HERMES_RECLEN_TO_BYTES(length
);
976 /* On memory mapped devices HERMES_RID_CNFGROUPADDRESSES can be
977 * set to be empty, but the USB bridge doesn't like it */
981 ctx
= ezusb_alloc_ctx(upriv
, rid
, EZUSB_RID_ACK
);
985 if (rid
== EZUSB_RID_TX
)
986 frame_type
= EZUSB_FRAME_DATA
;
988 frame_type
= EZUSB_FRAME_CONTROL
;
990 return ezusb_access_ltv(upriv
, ctx
, length
, data
, frame_type
,
994 static int ezusb_read_ltv(hermes_t
*hw
, int bap
, u16 rid
,
995 unsigned bufsize
, u16
*length
, void *buf
)
997 struct ezusb_priv
*upriv
= hw
->priv
;
998 struct request_context
*ctx
;
1000 if ((bufsize
< 0) || (bufsize
% 2))
1003 ctx
= ezusb_alloc_ctx(upriv
, rid
, rid
);
1007 return ezusb_access_ltv(upriv
, ctx
, 0, NULL
, EZUSB_FRAME_CONTROL
,
1008 buf
, bufsize
, length
);
1011 static int ezusb_doicmd_wait(hermes_t
*hw
, u16 cmd
, u16 parm0
, u16 parm1
,
1012 u16 parm2
, struct hermes_response
*resp
)
1014 struct ezusb_priv
*upriv
= hw
->priv
;
1015 struct request_context
*ctx
;
1023 dbg("0x%04X, parm0 0x%04X, parm1 0x%04X, parm2 0x%04X",
1024 cmd
, parm0
, parm1
, parm2
);
1025 ctx
= ezusb_alloc_ctx(upriv
, EZUSB_RID_DOCMD
, EZUSB_RID_ACK
);
1029 return ezusb_access_ltv(upriv
, ctx
, sizeof(data
), &data
,
1030 EZUSB_FRAME_CONTROL
, NULL
, 0, NULL
);
1033 static int ezusb_docmd_wait(hermes_t
*hw
, u16 cmd
, u16 parm0
,
1034 struct hermes_response
*resp
)
1036 struct ezusb_priv
*upriv
= hw
->priv
;
1037 struct request_context
*ctx
;
1045 dbg("0x%04X, parm0 0x%04X", cmd
, parm0
);
1046 ctx
= ezusb_alloc_ctx(upriv
, EZUSB_RID_DOCMD
, EZUSB_RID_ACK
);
1050 return ezusb_access_ltv(upriv
, ctx
, sizeof(data
), &data
,
1051 EZUSB_FRAME_CONTROL
, NULL
, 0, NULL
);
1054 static int ezusb_bap_pread(struct hermes
*hw
, int bap
,
1055 void *buf
, int len
, u16 id
, u16 offset
)
1057 struct ezusb_priv
*upriv
= hw
->priv
;
1058 struct ezusb_packet
*ans
= (void *) upriv
->read_urb
->transfer_buffer
;
1059 int actual_length
= upriv
->read_urb
->actual_length
;
1061 if (id
== EZUSB_RID_RX
) {
1062 if ((sizeof(*ans
) + offset
+ len
) > actual_length
) {
1063 printk(KERN_ERR PFX
"BAP read beyond buffer end "
1067 memcpy(buf
, ans
->data
+ offset
, len
);
1071 if (EZUSB_IS_INFO(id
)) {
1072 /* Include 4 bytes for length/type */
1073 if ((sizeof(*ans
) + offset
+ len
- 4) > actual_length
) {
1074 printk(KERN_ERR PFX
"BAP read beyond buffer end "
1078 memcpy(buf
, ans
->data
+ offset
- 4, len
);
1080 printk(KERN_ERR PFX
"Unexpected fid 0x%04x\n", id
);
1087 static int ezusb_read_pda(struct hermes
*hw
, __le16
*pda
,
1088 u32 pda_addr
, u16 pda_len
)
1090 struct ezusb_priv
*upriv
= hw
->priv
;
1091 struct request_context
*ctx
;
1093 cpu_to_le16(pda_addr
& 0xffff),
1094 cpu_to_le16(pda_len
- 4)
1096 ctx
= ezusb_alloc_ctx(upriv
, EZUSB_RID_READ_PDA
, EZUSB_RID_READ_PDA
);
1100 /* wl_lkm does not include PDA size in the PDA area.
1101 * We will pad the information into pda, so other routines
1102 * don't have to be modified */
1103 pda
[0] = cpu_to_le16(pda_len
- 2);
1104 /* Includes CFG_PROD_DATA but not itself */
1105 pda
[1] = cpu_to_le16(0x0800); /* CFG_PROD_DATA */
1107 return ezusb_access_ltv(upriv
, ctx
, sizeof(data
), &data
,
1108 EZUSB_FRAME_CONTROL
, &pda
[2], pda_len
- 4,
1112 static int ezusb_program_init(struct hermes
*hw
, u32 entry_point
)
1114 struct ezusb_priv
*upriv
= hw
->priv
;
1115 struct request_context
*ctx
;
1116 __le32 data
= cpu_to_le32(entry_point
);
1118 ctx
= ezusb_alloc_ctx(upriv
, EZUSB_RID_PROG_INIT
, EZUSB_RID_ACK
);
1122 return ezusb_access_ltv(upriv
, ctx
, sizeof(data
), &data
,
1123 EZUSB_FRAME_CONTROL
, NULL
, 0, NULL
);
1126 static int ezusb_program_end(struct hermes
*hw
)
1128 struct ezusb_priv
*upriv
= hw
->priv
;
1129 struct request_context
*ctx
;
1131 ctx
= ezusb_alloc_ctx(upriv
, EZUSB_RID_PROG_END
, EZUSB_RID_ACK
);
1135 return ezusb_access_ltv(upriv
, ctx
, 0, NULL
,
1136 EZUSB_FRAME_CONTROL
, NULL
, 0, NULL
);
1139 static int ezusb_program_bytes(struct hermes
*hw
, const char *buf
,
1142 struct ezusb_priv
*upriv
= hw
->priv
;
1143 struct request_context
*ctx
;
1144 __le32 data
= cpu_to_le32(addr
);
1147 ctx
= ezusb_alloc_ctx(upriv
, EZUSB_RID_PROG_SET_ADDR
, EZUSB_RID_ACK
);
1151 err
= ezusb_access_ltv(upriv
, ctx
, sizeof(data
), &data
,
1152 EZUSB_FRAME_CONTROL
, NULL
, 0, NULL
);
1156 ctx
= ezusb_alloc_ctx(upriv
, EZUSB_RID_PROG_BYTES
, EZUSB_RID_ACK
);
1160 return ezusb_access_ltv(upriv
, ctx
, len
, buf
,
1161 EZUSB_FRAME_CONTROL
, NULL
, 0, NULL
);
1164 static int ezusb_program(struct hermes
*hw
, const char *buf
,
1171 /* We can only send 2048 bytes out of the bulk xmit at a time,
1172 * so we have to split any programming into chunks of <2048
1175 ch_len
= (len
< MAX_DL_SIZE
) ? len
: MAX_DL_SIZE
;
1178 while (ch_addr
< (addr
+ len
)) {
1179 pr_debug("Programming subblock of length %d "
1180 "to address 0x%08x. Data @ %p\n",
1181 ch_len
, ch_addr
, &buf
[ch_addr
- addr
]);
1183 err
= ezusb_program_bytes(hw
, &buf
[ch_addr
- addr
],
1189 ch_len
= ((addr
+ len
- ch_addr
) < MAX_DL_SIZE
) ?
1190 (addr
+ len
- ch_addr
) : MAX_DL_SIZE
;
1196 static netdev_tx_t
ezusb_xmit(struct sk_buff
*skb
, struct net_device
*dev
)
1198 struct orinoco_private
*priv
= ndev_priv(dev
);
1199 struct net_device_stats
*stats
= &priv
->stats
;
1200 struct ezusb_priv
*upriv
= priv
->card
;
1204 int len
, data_len
, data_off
;
1206 unsigned long flags
;
1207 struct request_context
*ctx
;
1211 if (!netif_running(dev
)) {
1212 printk(KERN_ERR
"%s: Tx on stopped device!\n",
1214 return NETDEV_TX_BUSY
;
1217 if (netif_queue_stopped(dev
)) {
1218 printk(KERN_DEBUG
"%s: Tx while transmitter busy!\n",
1220 return NETDEV_TX_BUSY
;
1223 if (orinoco_lock(priv
, &flags
) != 0) {
1225 "%s: orinoco_xmit() called while hw_unavailable\n",
1227 return NETDEV_TX_BUSY
;
1230 if (!netif_carrier_ok(dev
) ||
1231 (priv
->iw_mode
== NL80211_IFTYPE_MONITOR
)) {
1232 /* Oops, the firmware hasn't established a connection,
1233 silently drop the packet (this seems to be the
1234 safest approach). */
1236 orinoco_unlock(priv
, &flags
);
1238 return NETDEV_TX_OK
;
1241 ctx
= ezusb_alloc_ctx(upriv
, EZUSB_RID_TX
, 0);
1245 memset(ctx
->buf
, 0, BULK_BUF_SIZE
);
1246 buf
= ctx
->buf
->data
;
1248 /* Length of the packet body */
1249 /* FIXME: what if the skb is smaller than this? */
1250 len
= max_t(int, skb
->len
- ETH_HLEN
, ETH_ZLEN
- ETH_HLEN
);
1252 eh
= (struct ethhdr
*) skb
->data
;
1254 tx_control
= cpu_to_le16(0);
1255 memcpy(buf
, &tx_control
, sizeof(tx_control
));
1256 buf
+= sizeof(tx_control
);
1257 /* Encapsulate Ethernet-II frames */
1258 if (ntohs(eh
->h_proto
) > ETH_DATA_LEN
) { /* Ethernet-II frame */
1259 struct header_struct
*hdr
= (void *) buf
;
1260 buf
+= sizeof(*hdr
);
1262 data_off
= sizeof(tx_control
) + sizeof(*hdr
);
1263 p
= skb
->data
+ ETH_HLEN
;
1266 memcpy(hdr
->dest
, eh
->h_dest
, ETH_ALEN
);
1267 memcpy(hdr
->src
, eh
->h_source
, ETH_ALEN
);
1268 hdr
->len
= htons(data_len
+ ENCAPS_OVERHEAD
);
1271 memcpy(&hdr
->dsap
, &encaps_hdr
, sizeof(encaps_hdr
));
1273 hdr
->ethertype
= eh
->h_proto
;
1274 } else { /* IEEE 802.3 frame */
1275 data_len
= len
+ ETH_HLEN
;
1276 data_off
= sizeof(tx_control
);
1280 memcpy(buf
, p
, data_len
);
1283 /* Finally, we actually initiate the send */
1284 netif_stop_queue(dev
);
1286 /* The card may behave better if we send evenly sized usb transfers */
1287 tx_size
= ALIGN(buf
- ctx
->buf
->data
, 2);
1289 err
= ezusb_access_ltv(upriv
, ctx
, tx_size
, NULL
,
1290 EZUSB_FRAME_DATA
, NULL
, 0, NULL
);
1293 netif_start_queue(dev
);
1294 if (net_ratelimit())
1295 printk(KERN_ERR
"%s: Error %d transmitting packet\n",
1301 dev
->trans_start
= jiffies
;
1302 stats
->tx_bytes
+= data_off
+ data_len
;
1304 orinoco_unlock(priv
, &flags
);
1308 return NETDEV_TX_OK
;
1311 orinoco_unlock(priv
, &flags
);
1312 return NETDEV_TX_BUSY
;
1315 static int ezusb_allocate(struct hermes
*hw
, u16 size
, u16
*fid
)
1317 *fid
= EZUSB_RID_TX
;
1322 static int ezusb_hard_reset(struct orinoco_private
*priv
)
1324 struct ezusb_priv
*upriv
= priv
->card
;
1325 int retval
= ezusb_8051_cpucs(upriv
, 1);
1328 err("Failed to reset");
1332 retval
= ezusb_8051_cpucs(upriv
, 0);
1334 err("Failed to unreset");
1338 dbg("sending control message");
1339 retval
= usb_control_msg(upriv
->udev
,
1340 usb_sndctrlpipe(upriv
->udev
, 0),
1341 EZUSB_REQUEST_TRIGER
,
1342 USB_TYPE_VENDOR
| USB_RECIP_DEVICE
|
1343 USB_DIR_OUT
, 0x0, 0x0, NULL
, 0,
1346 err("EZUSB_REQUEST_TRIGER failed retval %d", retval
);
1350 dbg("Sending EZUSB_REQUEST_TRIG_AC");
1351 retval
= usb_control_msg(upriv
->udev
,
1352 usb_sndctrlpipe(upriv
->udev
, 0),
1353 EZUSB_REQUEST_TRIG_AC
,
1354 USB_TYPE_VENDOR
| USB_RECIP_DEVICE
|
1355 USB_DIR_OUT
, 0x00FA, 0x0, NULL
, 0,
1358 err("EZUSB_REQUEST_TRIG_AC failed retval %d", retval
);
1367 static int ezusb_init(hermes_t
*hw
)
1369 struct ezusb_priv
*upriv
= hw
->priv
;
1372 BUG_ON(in_interrupt());
1375 upriv
->reply_count
= 0;
1376 /* Write the MAGIC number on the simulated registers to keep
1377 * orinoco.c happy */
1378 hermes_write_regn(hw
, SWSUPPORT0
, HERMES_MAGIC
);
1379 hermes_write_regn(hw
, RXFID
, EZUSB_RID_RX
);
1381 usb_kill_urb(upriv
->read_urb
);
1382 ezusb_submit_in_urb(upriv
);
1384 retval
= ezusb_write_ltv(hw
, 0, EZUSB_RID_INIT1
,
1385 HERMES_BYTES_TO_RECLEN(2), "\x10\x00");
1387 printk(KERN_ERR PFX
"EZUSB_RID_INIT1 error %d\n", retval
);
1391 retval
= ezusb_docmd_wait(hw
, HERMES_CMD_INIT
, 0, NULL
);
1393 printk(KERN_ERR PFX
"HERMES_CMD_INIT error %d\n", retval
);
1400 static void ezusb_bulk_in_callback(struct urb
*urb
)
1402 struct ezusb_priv
*upriv
= (struct ezusb_priv
*) urb
->context
;
1403 struct ezusb_packet
*ans
= urb
->transfer_buffer
;
1407 if (upriv
->udev
== NULL
) {
1408 dbg("disconnected");
1412 if (urb
->status
== -ETIMEDOUT
) {
1413 /* When a device gets unplugged we get this every time
1414 * we resubmit, flooding the logs. Since we don't use
1415 * USB timeouts, it shouldn't happen any other time*/
1416 pr_warning("%s: urb timed out, not resubmiting", __func__
);
1419 if (urb
->status
== -ECONNABORTED
) {
1420 pr_warning("%s: connection abort, resubmiting urb",
1424 if ((urb
->status
== -EILSEQ
)
1425 || (urb
->status
== -ENOENT
)
1426 || (urb
->status
== -ECONNRESET
)) {
1427 dbg("status %d, not resubmiting", urb
->status
);
1431 dbg("status: %d length: %d",
1432 urb
->status
, urb
->actual_length
);
1433 if (urb
->actual_length
< sizeof(*ans
)) {
1434 err("%s: short read, ignoring", __func__
);
1437 crc
= build_crc(ans
);
1438 if (le16_to_cpu(ans
->crc
) != crc
) {
1439 err("CRC error, ignoring packet");
1443 hermes_rid
= le16_to_cpu(ans
->hermes_rid
);
1444 if ((hermes_rid
!= EZUSB_RID_RX
) && !EZUSB_IS_INFO(hermes_rid
)) {
1445 ezusb_request_in_callback(upriv
, urb
);
1446 } else if (upriv
->dev
) {
1447 struct net_device
*dev
= upriv
->dev
;
1448 struct orinoco_private
*priv
= ndev_priv(dev
);
1449 hermes_t
*hw
= &priv
->hw
;
1451 if (hermes_rid
== EZUSB_RID_RX
) {
1452 __orinoco_ev_rx(dev
, hw
);
1454 hermes_write_regn(hw
, INFOFID
,
1455 le16_to_cpu(ans
->hermes_rid
));
1456 __orinoco_ev_info(dev
, hw
);
1462 ezusb_submit_in_urb(upriv
);
1465 static inline void ezusb_delete(struct ezusb_priv
*upriv
)
1467 struct net_device
*dev
;
1468 struct list_head
*item
;
1469 struct list_head
*tmp_item
;
1470 unsigned long flags
;
1472 BUG_ON(in_interrupt());
1476 mutex_lock(&upriv
->mtx
);
1478 upriv
->udev
= NULL
; /* No timer will be rearmed from here */
1480 usb_kill_urb(upriv
->read_urb
);
1482 spin_lock_irqsave(&upriv
->req_lock
, flags
);
1483 list_for_each_safe(item
, tmp_item
, &upriv
->req_active
) {
1484 struct request_context
*ctx
;
1487 ctx
= list_entry(item
, struct request_context
, list
);
1488 atomic_inc(&ctx
->refcount
);
1490 ctx
->outurb
->transfer_flags
|= URB_ASYNC_UNLINK
;
1491 err
= usb_unlink_urb(ctx
->outurb
);
1493 spin_unlock_irqrestore(&upriv
->req_lock
, flags
);
1494 if (err
== -EINPROGRESS
)
1495 wait_for_completion(&ctx
->done
);
1497 del_timer_sync(&ctx
->timer
);
1498 /* FIXME: there is an slight chance for the irq handler to
1500 if (!list_empty(&ctx
->list
))
1501 ezusb_ctx_complete(ctx
);
1503 ezusb_request_context_put(ctx
);
1504 spin_lock_irqsave(&upriv
->req_lock
, flags
);
1506 spin_unlock_irqrestore(&upriv
->req_lock
, flags
);
1508 list_for_each_safe(item
, tmp_item
, &upriv
->req_pending
)
1509 ezusb_ctx_complete(list_entry(item
,
1510 struct request_context
, list
));
1512 if (upriv
->read_urb
->status
== -EINPROGRESS
)
1513 printk(KERN_ERR PFX
"Some URB in progress\n");
1515 mutex_unlock(&upriv
->mtx
);
1517 kfree(upriv
->read_urb
->transfer_buffer
);
1518 if (upriv
->bap_buf
!= NULL
)
1519 kfree(upriv
->bap_buf
);
1520 if (upriv
->read_urb
!= NULL
)
1521 usb_free_urb(upriv
->read_urb
);
1523 struct orinoco_private
*priv
= ndev_priv(upriv
->dev
);
1524 orinoco_if_del(priv
);
1525 free_orinocodev(priv
);
1529 static void ezusb_lock_irqsave(spinlock_t
*lock
,
1530 unsigned long *flags
) __acquires(lock
)
1535 static void ezusb_unlock_irqrestore(spinlock_t
*lock
,
1536 unsigned long *flags
) __releases(lock
)
1538 spin_unlock_bh(lock
);
1541 static void ezusb_lock_irq(spinlock_t
*lock
) __acquires(lock
)
1546 static void ezusb_unlock_irq(spinlock_t
*lock
) __releases(lock
)
1548 spin_unlock_bh(lock
);
1551 static const struct hermes_ops ezusb_ops
= {
1553 .cmd_wait
= ezusb_docmd_wait
,
1554 .init_cmd_wait
= ezusb_doicmd_wait
,
1555 .allocate
= ezusb_allocate
,
1556 .read_ltv
= ezusb_read_ltv
,
1557 .write_ltv
= ezusb_write_ltv
,
1558 .bap_pread
= ezusb_bap_pread
,
1559 .read_pda
= ezusb_read_pda
,
1560 .program_init
= ezusb_program_init
,
1561 .program_end
= ezusb_program_end
,
1562 .program
= ezusb_program
,
1563 .lock_irqsave
= ezusb_lock_irqsave
,
1564 .unlock_irqrestore
= ezusb_unlock_irqrestore
,
1565 .lock_irq
= ezusb_lock_irq
,
1566 .unlock_irq
= ezusb_unlock_irq
,
1569 static const struct net_device_ops ezusb_netdev_ops
= {
1570 .ndo_open
= orinoco_open
,
1571 .ndo_stop
= orinoco_stop
,
1572 .ndo_start_xmit
= ezusb_xmit
,
1573 .ndo_set_multicast_list
= orinoco_set_multicast_list
,
1574 .ndo_change_mtu
= orinoco_change_mtu
,
1575 .ndo_set_mac_address
= eth_mac_addr
,
1576 .ndo_validate_addr
= eth_validate_addr
,
1577 .ndo_tx_timeout
= orinoco_tx_timeout
,
1578 .ndo_get_stats
= orinoco_get_stats
,
1581 static int ezusb_probe(struct usb_interface
*interface
,
1582 const struct usb_device_id
*id
)
1584 struct usb_device
*udev
= interface_to_usbdev(interface
);
1585 struct orinoco_private
*priv
;
1587 struct ezusb_priv
*upriv
= NULL
;
1588 struct usb_interface_descriptor
*iface_desc
;
1589 struct usb_endpoint_descriptor
*ep
;
1590 const struct firmware
*fw_entry
;
1594 priv
= alloc_orinocodev(sizeof(*upriv
), &udev
->dev
,
1595 ezusb_hard_reset
, NULL
);
1597 err("Couldn't allocate orinocodev");
1605 mutex_init(&upriv
->mtx
);
1606 spin_lock_init(&upriv
->reply_count_lock
);
1608 spin_lock_init(&upriv
->req_lock
);
1609 INIT_LIST_HEAD(&upriv
->req_pending
);
1610 INIT_LIST_HEAD(&upriv
->req_active
);
1614 hw
->iobase
= (void __force __iomem
*) &upriv
->hermes_reg_fake
;
1615 hw
->reg_spacing
= HERMES_16BIT_REGSPACING
;
1617 hw
->ops
= &ezusb_ops
;
1619 /* set up the endpoint information */
1620 /* check out the endpoints */
1622 iface_desc
= &interface
->altsetting
[0].desc
;
1623 for (i
= 0; i
< iface_desc
->bNumEndpoints
; ++i
) {
1624 ep
= &interface
->altsetting
[0].endpoint
[i
].desc
;
1626 if (((ep
->bEndpointAddress
& USB_ENDPOINT_DIR_MASK
)
1628 ((ep
->bmAttributes
& USB_ENDPOINT_XFERTYPE_MASK
)
1629 == USB_ENDPOINT_XFER_BULK
)) {
1630 /* we found a bulk in endpoint */
1631 if (upriv
->read_urb
!= NULL
) {
1632 pr_warning("Found a second bulk in ep, ignored");
1636 upriv
->read_urb
= usb_alloc_urb(0, GFP_KERNEL
);
1637 if (!upriv
->read_urb
) {
1638 err("No free urbs available");
1641 if (le16_to_cpu(ep
->wMaxPacketSize
) != 64)
1642 pr_warning("bulk in: wMaxPacketSize!= 64");
1643 if (ep
->bEndpointAddress
!= (2 | USB_DIR_IN
))
1644 pr_warning("bulk in: bEndpointAddress: %d",
1645 ep
->bEndpointAddress
);
1646 upriv
->read_pipe
= usb_rcvbulkpipe(udev
,
1649 upriv
->read_urb
->transfer_buffer
=
1650 kmalloc(BULK_BUF_SIZE
, GFP_KERNEL
);
1651 if (!upriv
->read_urb
->transfer_buffer
) {
1652 err("Couldn't allocate IN buffer");
1657 if (((ep
->bEndpointAddress
& USB_ENDPOINT_DIR_MASK
)
1659 ((ep
->bmAttributes
& USB_ENDPOINT_XFERTYPE_MASK
)
1660 == USB_ENDPOINT_XFER_BULK
)) {
1661 /* we found a bulk out endpoint */
1662 if (upriv
->bap_buf
!= NULL
) {
1663 pr_warning("Found a second bulk out ep, ignored");
1667 if (le16_to_cpu(ep
->wMaxPacketSize
) != 64)
1668 pr_warning("bulk out: wMaxPacketSize != 64");
1669 if (ep
->bEndpointAddress
!= 2)
1670 pr_warning("bulk out: bEndpointAddress: %d",
1671 ep
->bEndpointAddress
);
1672 upriv
->write_pipe
= usb_sndbulkpipe(udev
,
1675 upriv
->bap_buf
= kmalloc(BULK_BUF_SIZE
, GFP_KERNEL
);
1676 if (!upriv
->bap_buf
) {
1677 err("Couldn't allocate bulk_out_buffer");
1682 if (!upriv
->bap_buf
|| !upriv
->read_urb
) {
1683 err("Didn't find the required bulk endpoints");
1687 if (request_firmware(&fw_entry
, "orinoco_ezusb_fw",
1688 &interface
->dev
) == 0) {
1689 firmware
.size
= fw_entry
->size
;
1690 firmware
.code
= fw_entry
->data
;
1692 if (firmware
.size
&& firmware
.code
) {
1693 ezusb_firmware_download(upriv
, &firmware
);
1695 err("No firmware to download");
1699 if (ezusb_hard_reset(priv
) < 0) {
1700 err("Cannot reset the device");
1704 /* If the firmware is already downloaded orinoco.c will call
1705 * ezusb_init but if the firmware is not already there, that will make
1706 * the kernel very unstable, so we try initializing here and quit in
1708 if (ezusb_init(hw
) < 0) {
1709 err("Couldn't initialize the device");
1710 err("Firmware may not be downloaded or may be wrong.");
1714 /* Initialise the main driver */
1715 if (orinoco_init(priv
) != 0) {
1716 err("orinoco_init() failed\n");
1720 if (orinoco_if_add(priv
, 0, 0, &ezusb_netdev_ops
) != 0) {
1722 err("%s: orinoco_if_add() failed", __func__
);
1725 upriv
->dev
= priv
->ndev
;
1730 ezusb_delete(upriv
);
1732 /* upriv->dev was 0, so ezusb_delete() didn't free it */
1733 free_orinocodev(priv
);
1739 firmware
.code
= NULL
;
1741 release_firmware(fw_entry
);
1743 usb_set_intfdata(interface
, upriv
);
1748 static void ezusb_disconnect(struct usb_interface
*intf
)
1750 struct ezusb_priv
*upriv
= usb_get_intfdata(intf
);
1751 usb_set_intfdata(intf
, NULL
);
1752 ezusb_delete(upriv
);
1753 printk(KERN_INFO PFX
"Disconnected\n");
1757 /* usb specific object needed to register this driver with the usb subsystem */
1758 static struct usb_driver orinoco_driver
= {
1759 .name
= DRIVER_NAME
,
1760 .probe
= ezusb_probe
,
1761 .disconnect
= ezusb_disconnect
,
1762 .id_table
= ezusb_table
,
1765 /* Can't be declared "const" or the whole __initdata section will
1767 static char version
[] __initdata
= DRIVER_NAME
" " DRIVER_VERSION
1768 " (Manuel Estrada Sainz)";
1770 static int __init
ezusb_module_init(void)
1774 printk(KERN_DEBUG
"%s\n", version
);
1776 /* register this driver with the USB subsystem */
1777 err
= usb_register(&orinoco_driver
);
1779 printk(KERN_ERR PFX
"usb_register failed, error %d\n",
1787 static void __exit
ezusb_module_exit(void)
1789 /* deregister this driver with the USB subsystem */
1790 usb_deregister(&orinoco_driver
);
1794 module_init(ezusb_module_init
);
1795 module_exit(ezusb_module_exit
);
1797 MODULE_AUTHOR("Manuel Estrada Sainz");
1799 ("Driver for Orinoco wireless LAN cards using EZUSB bridge");
1800 MODULE_LICENSE("Dual MPL/GPL");