2 * Atheros AR9170 driver
6 * Copyright 2008, Johannes Berg <johannes@sipsolutions.net>
7 * Copyright 2009, Christian Lamparter <chunkeey@web.de>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; see the file COPYING. If not, see
21 * http://www.gnu.org/licenses/.
23 * This file incorporates work covered by the following copyright and
25 * Copyright (c) 2007-2008 Atheros Communications, Inc.
27 * Permission to use, copy, modify, and/or distribute this software for any
28 * purpose with or without fee is hereby granted, provided that the above
29 * copyright notice and this permission notice appear in all copies.
31 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
32 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
33 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
34 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
35 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
36 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
37 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
40 #include <linux/module.h>
41 #include <linux/slab.h>
42 #include <linux/usb.h>
43 #include <linux/firmware.h>
44 #include <linux/etherdevice.h>
45 #include <net/mac80211.h>
51 MODULE_AUTHOR("Johannes Berg <johannes@sipsolutions.net>");
52 MODULE_AUTHOR("Christian Lamparter <chunkeey@web.de>");
53 MODULE_LICENSE("GPL");
54 MODULE_DESCRIPTION("Atheros AR9170 802.11n USB wireless");
55 MODULE_FIRMWARE("ar9170.fw");
56 MODULE_FIRMWARE("ar9170-1.fw");
57 MODULE_FIRMWARE("ar9170-2.fw");
59 enum ar9170_requirements
{
60 AR9170_REQ_FW1_ONLY
= 1,
63 static struct usb_device_id ar9170_usb_ids
[] = {
65 { USB_DEVICE(0x0cf3, 0x9170) },
67 { USB_DEVICE(0x0cf3, 0x1001) },
68 /* TP-Link TL-WN821N v2 */
69 { USB_DEVICE(0x0cf3, 0x1002) },
71 { USB_DEVICE(0xcace, 0x0300) },
72 /* D-Link DWA 160 A1 */
73 { USB_DEVICE(0x07d1, 0x3c10) },
74 /* D-Link DWA 160 A2 */
75 { USB_DEVICE(0x07d1, 0x3a09) },
76 /* Netgear WNDA3100 */
77 { USB_DEVICE(0x0846, 0x9010) },
78 /* Netgear WN111 v2 */
79 { USB_DEVICE(0x0846, 0x9001) },
81 { USB_DEVICE(0x0ace, 0x1221) },
83 { USB_DEVICE(0x0586, 0x3417) },
85 { USB_DEVICE(0x0cde, 0x0023) },
87 { USB_DEVICE(0x0cde, 0x0026) },
88 /* Sphairon Homelink 1202 */
89 { USB_DEVICE(0x0cde, 0x0027) },
91 { USB_DEVICE(0x083a, 0xf522) },
93 { USB_DEVICE(0x2019, 0x5304) },
94 /* IO-Data WNGDNUS2 */
95 { USB_DEVICE(0x04bb, 0x093f) },
96 /* AVM FRITZ!WLAN USB Stick N */
97 { USB_DEVICE(0x057C, 0x8401) },
98 /* AVM FRITZ!WLAN USB Stick N 2.4 */
99 { USB_DEVICE(0x057C, 0x8402), .driver_info
= AR9170_REQ_FW1_ONLY
},
104 MODULE_DEVICE_TABLE(usb
, ar9170_usb_ids
);
106 static void ar9170_usb_submit_urb(struct ar9170_usb
*aru
)
112 if (unlikely(!IS_STARTED(&aru
->common
)))
115 spin_lock_irqsave(&aru
->tx_urb_lock
, flags
);
116 if (atomic_read(&aru
->tx_submitted_urbs
) >= AR9170_NUM_TX_URBS
) {
117 spin_unlock_irqrestore(&aru
->tx_urb_lock
, flags
);
120 atomic_inc(&aru
->tx_submitted_urbs
);
122 urb
= usb_get_from_anchor(&aru
->tx_pending
);
124 atomic_dec(&aru
->tx_submitted_urbs
);
125 spin_unlock_irqrestore(&aru
->tx_urb_lock
, flags
);
129 spin_unlock_irqrestore(&aru
->tx_urb_lock
, flags
);
131 aru
->tx_pending_urbs
--;
132 usb_anchor_urb(urb
, &aru
->tx_submitted
);
134 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
136 if (ar9170_nag_limiter(&aru
->common
))
137 dev_err(&aru
->udev
->dev
, "submit_urb failed (%d).\n",
140 usb_unanchor_urb(urb
);
141 atomic_dec(&aru
->tx_submitted_urbs
);
142 ar9170_tx_callback(&aru
->common
, urb
->context
);
148 static void ar9170_usb_tx_urb_complete_frame(struct urb
*urb
)
150 struct sk_buff
*skb
= urb
->context
;
151 struct ar9170_usb
*aru
= (struct ar9170_usb
*)
152 usb_get_intfdata(usb_ifnum_to_if(urb
->dev
, 0));
154 if (unlikely(!aru
)) {
155 dev_kfree_skb_irq(skb
);
159 atomic_dec(&aru
->tx_submitted_urbs
);
161 ar9170_tx_callback(&aru
->common
, skb
);
163 ar9170_usb_submit_urb(aru
);
166 static void ar9170_usb_tx_urb_complete(struct urb
*urb
)
170 static void ar9170_usb_irq_completed(struct urb
*urb
)
172 struct ar9170_usb
*aru
= urb
->context
;
174 switch (urb
->status
) {
175 /* everything is fine */
190 ar9170_handle_command_response(&aru
->common
, urb
->transfer_buffer
,
194 usb_anchor_urb(urb
, &aru
->rx_submitted
);
195 if (usb_submit_urb(urb
, GFP_ATOMIC
)) {
196 usb_unanchor_urb(urb
);
203 usb_buffer_free(aru
->udev
, 64, urb
->transfer_buffer
, urb
->transfer_dma
);
206 static void ar9170_usb_rx_completed(struct urb
*urb
)
208 struct sk_buff
*skb
= urb
->context
;
209 struct ar9170_usb
*aru
= (struct ar9170_usb
*)
210 usb_get_intfdata(usb_ifnum_to_if(urb
->dev
, 0));
216 switch (urb
->status
) {
217 /* everything is fine */
232 skb_put(skb
, urb
->actual_length
);
233 ar9170_rx(&aru
->common
, skb
);
236 skb_reset_tail_pointer(skb
);
239 usb_anchor_urb(urb
, &aru
->rx_submitted
);
240 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
242 usb_unanchor_urb(urb
);
249 dev_kfree_skb_irq(skb
);
252 static int ar9170_usb_prep_rx_urb(struct ar9170_usb
*aru
,
253 struct urb
*urb
, gfp_t gfp
)
257 skb
= __dev_alloc_skb(AR9170_MAX_RX_BUFFER_SIZE
+ 32, gfp
);
261 /* reserve some space for mac80211's radiotap */
262 skb_reserve(skb
, 32);
264 usb_fill_bulk_urb(urb
, aru
->udev
,
265 usb_rcvbulkpipe(aru
->udev
, AR9170_EP_RX
),
266 skb
->data
, min(skb_tailroom(skb
),
267 AR9170_MAX_RX_BUFFER_SIZE
),
268 ar9170_usb_rx_completed
, skb
);
273 static int ar9170_usb_alloc_rx_irq_urb(struct ar9170_usb
*aru
)
275 struct urb
*urb
= NULL
;
279 /* initialize interrupt endpoint */
280 urb
= usb_alloc_urb(0, GFP_KERNEL
);
284 ibuf
= usb_buffer_alloc(aru
->udev
, 64, GFP_KERNEL
, &urb
->transfer_dma
);
288 usb_fill_int_urb(urb
, aru
->udev
,
289 usb_rcvintpipe(aru
->udev
, AR9170_EP_IRQ
), ibuf
,
290 64, ar9170_usb_irq_completed
, aru
, 1);
291 urb
->transfer_flags
|= URB_NO_TRANSFER_DMA_MAP
;
293 usb_anchor_urb(urb
, &aru
->rx_submitted
);
294 err
= usb_submit_urb(urb
, GFP_KERNEL
);
296 usb_unanchor_urb(urb
);
297 usb_buffer_free(aru
->udev
, 64, urb
->transfer_buffer
,
306 static int ar9170_usb_alloc_rx_bulk_urbs(struct ar9170_usb
*aru
)
312 for (i
= 0; i
< AR9170_NUM_RX_URBS
; i
++) {
314 urb
= usb_alloc_urb(0, GFP_KERNEL
);
318 err
= ar9170_usb_prep_rx_urb(aru
, urb
, GFP_KERNEL
);
324 usb_anchor_urb(urb
, &aru
->rx_submitted
);
325 err
= usb_submit_urb(urb
, GFP_KERNEL
);
327 usb_unanchor_urb(urb
);
328 dev_kfree_skb_any((void *) urb
->transfer_buffer
);
335 /* the device now waiting for a firmware. */
336 aru
->common
.state
= AR9170_IDLE
;
341 usb_kill_anchored_urbs(&aru
->rx_submitted
);
345 static int ar9170_usb_flush(struct ar9170
*ar
)
347 struct ar9170_usb
*aru
= (void *) ar
;
352 aru
->common
.state
= AR9170_IDLE
;
354 usb_wait_anchor_empty_timeout(&aru
->tx_pending
,
355 msecs_to_jiffies(800));
356 while ((urb
= usb_get_from_anchor(&aru
->tx_pending
))) {
357 ar9170_tx_callback(&aru
->common
, (void *) urb
->context
);
361 /* lets wait a while until the tx - queues are dried out */
362 ret
= usb_wait_anchor_empty_timeout(&aru
->tx_submitted
,
363 msecs_to_jiffies(100));
367 usb_kill_anchored_urbs(&aru
->tx_submitted
);
369 if (IS_ACCEPTING_CMD(ar
))
370 aru
->common
.state
= AR9170_STARTED
;
375 static void ar9170_usb_cancel_urbs(struct ar9170_usb
*aru
)
379 aru
->common
.state
= AR9170_UNKNOWN_STATE
;
381 err
= ar9170_usb_flush(&aru
->common
);
383 dev_err(&aru
->udev
->dev
, "stuck tx urbs!\n");
385 usb_poison_anchored_urbs(&aru
->tx_submitted
);
386 usb_poison_anchored_urbs(&aru
->rx_submitted
);
389 static int ar9170_usb_exec_cmd(struct ar9170
*ar
, enum ar9170_cmd cmd
,
390 unsigned int plen
, void *payload
,
391 unsigned int outlen
, void *out
)
393 struct ar9170_usb
*aru
= (void *) ar
;
394 struct urb
*urb
= NULL
;
398 if (unlikely(!IS_ACCEPTING_CMD(ar
)))
401 if (WARN_ON(plen
> AR9170_MAX_CMD_LEN
- 4))
404 urb
= usb_alloc_urb(0, GFP_ATOMIC
);
408 ar
->cmdbuf
[0] = cpu_to_le32(plen
);
409 ar
->cmdbuf
[0] |= cpu_to_le32(cmd
<< 8);
410 /* writing multiple regs fills this buffer already */
411 if (plen
&& payload
!= (u8
*)(&ar
->cmdbuf
[1]))
412 memcpy(&ar
->cmdbuf
[1], payload
, plen
);
414 spin_lock_irqsave(&aru
->common
.cmdlock
, flags
);
415 aru
->readbuf
= (u8
*)out
;
416 aru
->readlen
= outlen
;
417 spin_unlock_irqrestore(&aru
->common
.cmdlock
, flags
);
419 usb_fill_int_urb(urb
, aru
->udev
,
420 usb_sndbulkpipe(aru
->udev
, AR9170_EP_CMD
),
421 aru
->common
.cmdbuf
, plen
+ 4,
422 ar9170_usb_tx_urb_complete
, NULL
, 1);
424 usb_anchor_urb(urb
, &aru
->tx_submitted
);
425 err
= usb_submit_urb(urb
, GFP_ATOMIC
);
427 usb_unanchor_urb(urb
);
433 err
= wait_for_completion_timeout(&aru
->cmd_wait
, HZ
);
439 if (aru
->readlen
!= outlen
) {
447 /* Maybe the device was removed in the second we were waiting? */
448 if (IS_STARTED(ar
)) {
449 dev_err(&aru
->udev
->dev
, "no command feedback "
450 "received (%d).\n", err
);
452 /* provide some maybe useful debug information */
453 print_hex_dump_bytes("ar9170 cmd: ", DUMP_PREFIX_NONE
,
454 aru
->common
.cmdbuf
, plen
+ 4);
458 /* invalidate to avoid completing the next prematurely */
459 spin_lock_irqsave(&aru
->common
.cmdlock
, flags
);
462 spin_unlock_irqrestore(&aru
->common
.cmdlock
, flags
);
469 static int ar9170_usb_tx(struct ar9170
*ar
, struct sk_buff
*skb
)
471 struct ar9170_usb
*aru
= (struct ar9170_usb
*) ar
;
474 if (unlikely(!IS_STARTED(ar
))) {
475 /* Seriously, what were you drink... err... thinking!? */
479 urb
= usb_alloc_urb(0, GFP_ATOMIC
);
483 usb_fill_bulk_urb(urb
, aru
->udev
,
484 usb_sndbulkpipe(aru
->udev
, AR9170_EP_TX
),
486 ar9170_usb_tx_urb_complete_frame
, skb
);
487 urb
->transfer_flags
|= URB_ZERO_PACKET
;
489 usb_anchor_urb(urb
, &aru
->tx_pending
);
490 aru
->tx_pending_urbs
++;
494 ar9170_usb_submit_urb(aru
);
498 static void ar9170_usb_callback_cmd(struct ar9170
*ar
, u32 len
, void *buffer
)
500 struct ar9170_usb
*aru
= (void *) ar
;
504 if (unlikely(!buffer
))
507 in
= le32_to_cpup((__le32
*)buffer
);
508 out
= le32_to_cpu(ar
->cmdbuf
[0]);
510 /* mask off length byte */
513 if (aru
->readlen
>= 0) {
514 /* add expected length */
517 /* add obtained length */
522 * Some commands (e.g: AR9170_CMD_FREQUENCY) have a variable response
523 * length and we cannot predict the correct length in advance.
524 * So we only check if we provided enough space for the data.
526 if (unlikely(out
< in
)) {
527 dev_warn(&aru
->udev
->dev
, "received invalid command response "
528 "got %d bytes, instead of %d bytes "
529 "and the resp length is %d bytes\n",
531 print_hex_dump_bytes("ar9170 invalid resp: ",
532 DUMP_PREFIX_OFFSET
, buffer
, len
);
534 * Do not complete, then the command times out,
535 * and we get a stack trace from there.
540 spin_lock_irqsave(&aru
->common
.cmdlock
, flags
);
541 if (aru
->readbuf
&& len
> 0) {
542 memcpy(aru
->readbuf
, buffer
+ 4, len
- 4);
545 complete(&aru
->cmd_wait
);
546 spin_unlock_irqrestore(&aru
->common
.cmdlock
, flags
);
549 static int ar9170_usb_upload(struct ar9170_usb
*aru
, const void *data
,
550 size_t len
, u32 addr
, bool complete
)
553 u8
*buf
= kmalloc(4096, GFP_KERNEL
);
559 transfer
= min_t(int, len
, 4096);
560 memcpy(buf
, data
, transfer
);
562 err
= usb_control_msg(aru
->udev
, usb_sndctrlpipe(aru
->udev
, 0),
563 0x30 /* FW DL */, 0x40 | USB_DIR_OUT
,
564 addr
>> 8, 0, buf
, transfer
, 1000);
578 err
= usb_control_msg(aru
->udev
, usb_sndctrlpipe(aru
->udev
, 0),
579 0x31 /* FW DL COMPLETE */,
580 0x40 | USB_DIR_OUT
, 0, 0, NULL
, 0, 5000);
586 static int ar9170_usb_reset(struct ar9170_usb
*aru
)
588 int ret
, lock
= (aru
->intf
->condition
!= USB_INTERFACE_BINDING
);
591 ret
= usb_lock_device_for_reset(aru
->udev
, aru
->intf
);
593 dev_err(&aru
->udev
->dev
, "unable to lock device "
594 "for reset (%d).\n", ret
);
599 ret
= usb_reset_device(aru
->udev
);
601 usb_unlock_device(aru
->udev
);
603 /* let it rest - for a second - */
609 static int ar9170_usb_upload_firmware(struct ar9170_usb
*aru
)
613 if (!aru
->init_values
)
614 goto upload_fw_start
;
616 /* First, upload initial values to device RAM */
617 err
= ar9170_usb_upload(aru
, aru
->init_values
->data
,
618 aru
->init_values
->size
, 0x102800, false);
620 dev_err(&aru
->udev
->dev
, "firmware part 1 "
621 "upload failed (%d).\n", err
);
627 /* Then, upload the firmware itself and start it */
628 return ar9170_usb_upload(aru
, aru
->firmware
->data
, aru
->firmware
->size
,
632 static int ar9170_usb_init_transport(struct ar9170_usb
*aru
)
634 struct ar9170
*ar
= (void *) &aru
->common
;
637 ar9170_regwrite_begin(ar
);
639 /* Set USB Rx stream mode MAX packet number to 2 */
640 ar9170_regwrite(AR9170_USB_REG_MAX_AGG_UPLOAD
, 0x4);
642 /* Set USB Rx stream mode timeout to 10us */
643 ar9170_regwrite(AR9170_USB_REG_UPLOAD_TIME_CTL
, 0x80);
645 ar9170_regwrite_finish();
647 err
= ar9170_regwrite_result();
649 dev_err(&aru
->udev
->dev
, "USB setup failed (%d).\n", err
);
654 static void ar9170_usb_stop(struct ar9170
*ar
)
656 struct ar9170_usb
*aru
= (void *) ar
;
659 if (IS_ACCEPTING_CMD(ar
))
660 aru
->common
.state
= AR9170_STOPPED
;
662 ret
= ar9170_usb_flush(ar
);
664 dev_err(&aru
->udev
->dev
, "kill pending tx urbs.\n");
666 usb_poison_anchored_urbs(&aru
->tx_submitted
);
670 * So far we freed all tx urbs, but we won't dare to touch any rx urbs.
671 * Else we would end up with a unresponsive device...
675 static int ar9170_usb_open(struct ar9170
*ar
)
677 struct ar9170_usb
*aru
= (void *) ar
;
680 usb_unpoison_anchored_urbs(&aru
->tx_submitted
);
681 err
= ar9170_usb_init_transport(aru
);
683 usb_poison_anchored_urbs(&aru
->tx_submitted
);
687 aru
->common
.state
= AR9170_IDLE
;
691 static int ar9170_usb_init_device(struct ar9170_usb
*aru
)
695 err
= ar9170_usb_alloc_rx_irq_urb(aru
);
699 err
= ar9170_usb_alloc_rx_bulk_urbs(aru
);
703 err
= ar9170_usb_upload_firmware(aru
);
705 err
= ar9170_echo_test(&aru
->common
, 0x60d43110);
707 /* force user invention, by disabling the device */
708 err
= usb_driver_set_configuration(aru
->udev
, -1);
709 dev_err(&aru
->udev
->dev
, "device is in a bad state. "
710 "please reconnect it!\n");
718 ar9170_usb_cancel_urbs(aru
);
724 static void ar9170_usb_firmware_failed(struct ar9170_usb
*aru
)
726 struct device
*parent
= aru
->udev
->dev
.parent
;
728 /* unbind anything failed */
731 device_release_driver(&aru
->udev
->dev
);
736 static void ar9170_usb_firmware_finish(const struct firmware
*fw
, void *context
)
738 struct ar9170_usb
*aru
= context
;
744 dev_err(&aru
->udev
->dev
, "firmware file not found.\n");
748 err
= ar9170_usb_init_device(aru
);
752 err
= ar9170_usb_open(&aru
->common
);
756 err
= ar9170_register(&aru
->common
, &aru
->udev
->dev
);
758 ar9170_usb_stop(&aru
->common
);
765 ar9170_usb_cancel_urbs(aru
);
768 ar9170_usb_firmware_failed(aru
);
771 static void ar9170_usb_firmware_inits(const struct firmware
*fw
,
774 struct ar9170_usb
*aru
= context
;
778 dev_err(&aru
->udev
->dev
, "file with init values not found.\n");
779 ar9170_usb_firmware_failed(aru
);
783 aru
->init_values
= fw
;
785 /* ok so we have the init values -- get code for two-stage */
787 err
= request_firmware_nowait(THIS_MODULE
, 1, "ar9170-2.fw",
788 &aru
->udev
->dev
, GFP_KERNEL
, aru
,
789 ar9170_usb_firmware_finish
);
791 ar9170_usb_firmware_failed(aru
);
794 static void ar9170_usb_firmware_step2(const struct firmware
*fw
, void *context
)
796 struct ar9170_usb
*aru
= context
;
800 ar9170_usb_firmware_finish(fw
, context
);
804 if (aru
->req_one_stage_fw
) {
805 dev_err(&aru
->udev
->dev
, "ar9170.fw firmware file "
806 "not found and is required for this device\n");
807 ar9170_usb_firmware_failed(aru
);
811 dev_err(&aru
->udev
->dev
, "ar9170.fw firmware file "
812 "not found, trying old firmware...\n");
814 err
= request_firmware_nowait(THIS_MODULE
, 1, "ar9170-1.fw",
815 &aru
->udev
->dev
, GFP_KERNEL
, aru
,
816 ar9170_usb_firmware_inits
);
818 ar9170_usb_firmware_failed(aru
);
821 static bool ar9170_requires_one_stage(const struct usb_device_id
*id
)
823 if (!id
->driver_info
)
825 if (id
->driver_info
== AR9170_REQ_FW1_ONLY
)
830 static int ar9170_usb_probe(struct usb_interface
*intf
,
831 const struct usb_device_id
*id
)
833 struct ar9170_usb
*aru
;
835 struct usb_device
*udev
;
838 aru
= ar9170_alloc(sizeof(*aru
));
844 udev
= interface_to_usbdev(intf
);
850 aru
->req_one_stage_fw
= ar9170_requires_one_stage(id
);
852 usb_set_intfdata(intf
, aru
);
853 SET_IEEE80211_DEV(ar
->hw
, &intf
->dev
);
855 init_usb_anchor(&aru
->rx_submitted
);
856 init_usb_anchor(&aru
->tx_pending
);
857 init_usb_anchor(&aru
->tx_submitted
);
858 init_completion(&aru
->cmd_wait
);
859 spin_lock_init(&aru
->tx_urb_lock
);
861 aru
->tx_pending_urbs
= 0;
862 atomic_set(&aru
->tx_submitted_urbs
, 0);
864 aru
->common
.stop
= ar9170_usb_stop
;
865 aru
->common
.flush
= ar9170_usb_flush
;
866 aru
->common
.open
= ar9170_usb_open
;
867 aru
->common
.tx
= ar9170_usb_tx
;
868 aru
->common
.exec_cmd
= ar9170_usb_exec_cmd
;
869 aru
->common
.callback_cmd
= ar9170_usb_callback_cmd
;
872 udev
->reset_resume
= 1;
873 #endif /* CONFIG_PM */
874 err
= ar9170_usb_reset(aru
);
878 return request_firmware_nowait(THIS_MODULE
, 1, "ar9170.fw",
879 &aru
->udev
->dev
, GFP_KERNEL
, aru
,
880 ar9170_usb_firmware_step2
);
882 usb_set_intfdata(intf
, NULL
);
884 ieee80211_free_hw(ar
->hw
);
889 static void ar9170_usb_disconnect(struct usb_interface
*intf
)
891 struct ar9170_usb
*aru
= usb_get_intfdata(intf
);
896 aru
->common
.state
= AR9170_IDLE
;
897 ar9170_unregister(&aru
->common
);
898 ar9170_usb_cancel_urbs(aru
);
900 usb_put_dev(aru
->udev
);
901 usb_set_intfdata(intf
, NULL
);
902 ieee80211_free_hw(aru
->common
.hw
);
904 release_firmware(aru
->init_values
);
905 release_firmware(aru
->firmware
);
909 static int ar9170_suspend(struct usb_interface
*intf
,
910 pm_message_t message
)
912 struct ar9170_usb
*aru
= usb_get_intfdata(intf
);
917 aru
->common
.state
= AR9170_IDLE
;
918 ar9170_usb_cancel_urbs(aru
);
923 static int ar9170_resume(struct usb_interface
*intf
)
925 struct ar9170_usb
*aru
= usb_get_intfdata(intf
);
931 usb_unpoison_anchored_urbs(&aru
->rx_submitted
);
932 usb_unpoison_anchored_urbs(&aru
->tx_submitted
);
934 err
= ar9170_usb_init_device(aru
);
938 err
= ar9170_usb_open(&aru
->common
);
945 aru
->common
.state
= AR9170_IDLE
;
946 ar9170_usb_cancel_urbs(aru
);
950 #endif /* CONFIG_PM */
952 static struct usb_driver ar9170_driver
= {
954 .probe
= ar9170_usb_probe
,
955 .disconnect
= ar9170_usb_disconnect
,
956 .id_table
= ar9170_usb_ids
,
959 .suspend
= ar9170_suspend
,
960 .resume
= ar9170_resume
,
961 .reset_resume
= ar9170_resume
,
962 #endif /* CONFIG_PM */
965 static int __init
ar9170_init(void)
967 return usb_register(&ar9170_driver
);
970 static void __exit
ar9170_exit(void)
972 usb_deregister(&ar9170_driver
);
975 module_init(ar9170_init
);
976 module_exit(ar9170_exit
);