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 <linux/device.h>
46 #include <net/mac80211.h>
52 MODULE_AUTHOR("Johannes Berg <johannes@sipsolutions.net>");
53 MODULE_AUTHOR("Christian Lamparter <chunkeey@web.de>");
54 MODULE_LICENSE("GPL");
55 MODULE_DESCRIPTION("Atheros AR9170 802.11n USB wireless");
56 MODULE_FIRMWARE("ar9170.fw");
57 MODULE_FIRMWARE("ar9170-1.fw");
58 MODULE_FIRMWARE("ar9170-2.fw");
60 enum ar9170_requirements {
61 AR9170_REQ_FW1_ONLY = 1,
64 static struct usb_device_id ar9170_usb_ids[] = {
66 { USB_DEVICE(0x0cf3, 0x9170) },
68 { USB_DEVICE(0x0cf3, 0x1001) },
69 /* TP-Link TL-WN821N v2 */
70 { USB_DEVICE(0x0cf3, 0x1002) },
71 /* 3Com Dual Band 802.11n USB Adapter */
72 { USB_DEVICE(0x0cf3, 0x1010) },
73 /* H3C Dual Band 802.11n USB Adapter */
74 { USB_DEVICE(0x0cf3, 0x1011) },
76 { USB_DEVICE(0xcace, 0x0300) },
77 /* D-Link DWA 160 A1 */
78 { USB_DEVICE(0x07d1, 0x3c10) },
79 /* D-Link DWA 160 A2 */
80 { USB_DEVICE(0x07d1, 0x3a09) },
82 { USB_DEVICE(0x0846, 0x9040) },
83 /* Netgear WNDA3100 */
84 { USB_DEVICE(0x0846, 0x9010) },
85 /* Netgear WN111 v2 */
86 { USB_DEVICE(0x0846, 0x9001) },
88 { USB_DEVICE(0x0ace, 0x1221) },
89 /* Proxim ORiNOCO 802.11n USB */
90 { USB_DEVICE(0x1435, 0x0804) },
91 /* WNC Generic 11n USB Dongle */
92 { USB_DEVICE(0x1435, 0x0326) },
94 { USB_DEVICE(0x0586, 0x3417) },
96 { USB_DEVICE(0x0cde, 0x0023) },
98 { USB_DEVICE(0x0cde, 0x0026) },
99 /* Sphairon Homelink 1202 */
100 { USB_DEVICE(0x0cde, 0x0027) },
101 /* Arcadyan WN7512 */
102 { USB_DEVICE(0x083a, 0xf522) },
104 { USB_DEVICE(0x2019, 0x5304) },
105 /* IO-Data WNGDNUS2 */
106 { USB_DEVICE(0x04bb, 0x093f) },
107 /* AVM FRITZ!WLAN USB Stick N */
108 { USB_DEVICE(0x057C, 0x8401) },
110 { USB_DEVICE(0x0409, 0x0249) },
111 /* AVM FRITZ!WLAN USB Stick N 2.4 */
112 { USB_DEVICE(0x057C, 0x8402), .driver_info = AR9170_REQ_FW1_ONLY },
113 /* Qwest/Actiontec 802AIN Wireless N USB Network Adapter */
114 { USB_DEVICE(0x1668, 0x1200) },
119 MODULE_DEVICE_TABLE(usb, ar9170_usb_ids);
121 static void ar9170_usb_submit_urb(struct ar9170_usb *aru)
127 if (unlikely(!IS_STARTED(&aru->common)))
130 spin_lock_irqsave(&aru->tx_urb_lock, flags);
131 if (atomic_read(&aru->tx_submitted_urbs) >= AR9170_NUM_TX_URBS) {
132 spin_unlock_irqrestore(&aru->tx_urb_lock, flags);
135 atomic_inc(&aru->tx_submitted_urbs);
137 urb = usb_get_from_anchor(&aru->tx_pending);
139 atomic_dec(&aru->tx_submitted_urbs);
140 spin_unlock_irqrestore(&aru->tx_urb_lock, flags);
144 spin_unlock_irqrestore(&aru->tx_urb_lock, flags);
146 aru->tx_pending_urbs--;
147 usb_anchor_urb(urb, &aru->tx_submitted);
149 err = usb_submit_urb(urb, GFP_ATOMIC);
151 if (ar9170_nag_limiter(&aru->common))
152 dev_err(&aru->udev->dev, "submit_urb failed (%d).\n",
155 usb_unanchor_urb(urb);
156 atomic_dec(&aru->tx_submitted_urbs);
157 ar9170_tx_callback(&aru->common, urb->context);
163 static void ar9170_usb_tx_urb_complete_frame(struct urb *urb)
165 struct sk_buff *skb = urb->context;
166 struct ar9170_usb *aru = (struct ar9170_usb *)
167 usb_get_intfdata(usb_ifnum_to_if(urb->dev, 0));
169 if (unlikely(!aru)) {
170 dev_kfree_skb_irq(skb);
174 atomic_dec(&aru->tx_submitted_urbs);
176 ar9170_tx_callback(&aru->common, skb);
178 ar9170_usb_submit_urb(aru);
181 static void ar9170_usb_tx_urb_complete(struct urb *urb)
185 static void ar9170_usb_irq_completed(struct urb *urb)
187 struct ar9170_usb *aru = urb->context;
189 switch (urb->status) {
190 /* everything is fine */
205 ar9170_handle_command_response(&aru->common, urb->transfer_buffer,
209 usb_anchor_urb(urb, &aru->rx_submitted);
210 if (usb_submit_urb(urb, GFP_ATOMIC)) {
211 usb_unanchor_urb(urb);
218 usb_free_coherent(aru->udev, 64, urb->transfer_buffer, urb->transfer_dma);
221 static void ar9170_usb_rx_completed(struct urb *urb)
223 struct sk_buff *skb = urb->context;
224 struct ar9170_usb *aru = (struct ar9170_usb *)
225 usb_get_intfdata(usb_ifnum_to_if(urb->dev, 0));
231 switch (urb->status) {
232 /* everything is fine */
247 skb_put(skb, urb->actual_length);
248 ar9170_rx(&aru->common, skb);
251 skb_reset_tail_pointer(skb);
254 usb_anchor_urb(urb, &aru->rx_submitted);
255 err = usb_submit_urb(urb, GFP_ATOMIC);
257 usb_unanchor_urb(urb);
264 dev_kfree_skb_irq(skb);
267 static int ar9170_usb_prep_rx_urb(struct ar9170_usb *aru,
268 struct urb *urb, gfp_t gfp)
272 skb = __dev_alloc_skb(AR9170_MAX_RX_BUFFER_SIZE + 32, gfp);
276 /* reserve some space for mac80211's radiotap */
277 skb_reserve(skb, 32);
279 usb_fill_bulk_urb(urb, aru->udev,
280 usb_rcvbulkpipe(aru->udev, AR9170_EP_RX),
281 skb->data, min(skb_tailroom(skb),
282 AR9170_MAX_RX_BUFFER_SIZE),
283 ar9170_usb_rx_completed, skb);
288 static int ar9170_usb_alloc_rx_irq_urb(struct ar9170_usb *aru)
290 struct urb *urb = NULL;
294 /* initialize interrupt endpoint */
295 urb = usb_alloc_urb(0, GFP_KERNEL);
299 ibuf = usb_alloc_coherent(aru->udev, 64, GFP_KERNEL, &urb->transfer_dma);
303 usb_fill_int_urb(urb, aru->udev,
304 usb_rcvintpipe(aru->udev, AR9170_EP_IRQ), ibuf,
305 64, ar9170_usb_irq_completed, aru, 1);
306 urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
308 usb_anchor_urb(urb, &aru->rx_submitted);
309 err = usb_submit_urb(urb, GFP_KERNEL);
311 usb_unanchor_urb(urb);
312 usb_free_coherent(aru->udev, 64, urb->transfer_buffer,
321 static int ar9170_usb_alloc_rx_bulk_urbs(struct ar9170_usb *aru)
327 for (i = 0; i < AR9170_NUM_RX_URBS; i++) {
329 urb = usb_alloc_urb(0, GFP_KERNEL);
333 err = ar9170_usb_prep_rx_urb(aru, urb, GFP_KERNEL);
339 usb_anchor_urb(urb, &aru->rx_submitted);
340 err = usb_submit_urb(urb, GFP_KERNEL);
342 usb_unanchor_urb(urb);
343 dev_kfree_skb_any((void *) urb->transfer_buffer);
350 /* the device now waiting for a firmware. */
351 aru->common.state = AR9170_IDLE;
356 usb_kill_anchored_urbs(&aru->rx_submitted);
360 static int ar9170_usb_flush(struct ar9170 *ar)
362 struct ar9170_usb *aru = (void *) ar;
367 aru->common.state = AR9170_IDLE;
369 usb_wait_anchor_empty_timeout(&aru->tx_pending,
370 msecs_to_jiffies(800));
371 while ((urb = usb_get_from_anchor(&aru->tx_pending))) {
372 ar9170_tx_callback(&aru->common, (void *) urb->context);
376 /* lets wait a while until the tx - queues are dried out */
377 ret = usb_wait_anchor_empty_timeout(&aru->tx_submitted,
378 msecs_to_jiffies(100));
382 usb_kill_anchored_urbs(&aru->tx_submitted);
384 if (IS_ACCEPTING_CMD(ar))
385 aru->common.state = AR9170_STARTED;
390 static void ar9170_usb_cancel_urbs(struct ar9170_usb *aru)
394 aru->common.state = AR9170_UNKNOWN_STATE;
396 err = ar9170_usb_flush(&aru->common);
398 dev_err(&aru->udev->dev, "stuck tx urbs!\n");
400 usb_poison_anchored_urbs(&aru->tx_submitted);
401 usb_poison_anchored_urbs(&aru->rx_submitted);
404 static int ar9170_usb_exec_cmd(struct ar9170 *ar, enum ar9170_cmd cmd,
405 unsigned int plen, void *payload,
406 unsigned int outlen, void *out)
408 struct ar9170_usb *aru = (void *) ar;
409 struct urb *urb = NULL;
413 if (unlikely(!IS_ACCEPTING_CMD(ar)))
416 if (WARN_ON(plen > AR9170_MAX_CMD_LEN - 4))
419 urb = usb_alloc_urb(0, GFP_ATOMIC);
423 ar->cmdbuf[0] = cpu_to_le32(plen);
424 ar->cmdbuf[0] |= cpu_to_le32(cmd << 8);
425 /* writing multiple regs fills this buffer already */
426 if (plen && payload != (u8 *)(&ar->cmdbuf[1]))
427 memcpy(&ar->cmdbuf[1], payload, plen);
429 spin_lock_irqsave(&aru->common.cmdlock, flags);
430 aru->readbuf = (u8 *)out;
431 aru->readlen = outlen;
432 spin_unlock_irqrestore(&aru->common.cmdlock, flags);
434 usb_fill_int_urb(urb, aru->udev,
435 usb_sndintpipe(aru->udev, AR9170_EP_CMD),
436 aru->common.cmdbuf, plen + 4,
437 ar9170_usb_tx_urb_complete, NULL, 1);
439 usb_anchor_urb(urb, &aru->tx_submitted);
440 err = usb_submit_urb(urb, GFP_ATOMIC);
442 usb_unanchor_urb(urb);
448 err = wait_for_completion_timeout(&aru->cmd_wait, HZ);
454 if (aru->readlen != outlen) {
462 /* Maybe the device was removed in the second we were waiting? */
463 if (IS_STARTED(ar)) {
464 dev_err(&aru->udev->dev, "no command feedback "
465 "received (%d).\n", err);
467 /* provide some maybe useful debug information */
468 print_hex_dump_bytes("ar9170 cmd: ", DUMP_PREFIX_NONE,
469 aru->common.cmdbuf, plen + 4);
473 /* invalidate to avoid completing the next prematurely */
474 spin_lock_irqsave(&aru->common.cmdlock, flags);
477 spin_unlock_irqrestore(&aru->common.cmdlock, flags);
484 static int ar9170_usb_tx(struct ar9170 *ar, struct sk_buff *skb)
486 struct ar9170_usb *aru = (struct ar9170_usb *) ar;
489 if (unlikely(!IS_STARTED(ar))) {
490 /* Seriously, what were you drink... err... thinking!? */
494 urb = usb_alloc_urb(0, GFP_ATOMIC);
498 usb_fill_bulk_urb(urb, aru->udev,
499 usb_sndbulkpipe(aru->udev, AR9170_EP_TX),
501 ar9170_usb_tx_urb_complete_frame, skb);
502 urb->transfer_flags |= URB_ZERO_PACKET;
504 usb_anchor_urb(urb, &aru->tx_pending);
505 aru->tx_pending_urbs++;
509 ar9170_usb_submit_urb(aru);
513 static void ar9170_usb_callback_cmd(struct ar9170 *ar, u32 len , void *buffer)
515 struct ar9170_usb *aru = (void *) ar;
519 if (unlikely(!buffer))
522 in = le32_to_cpup((__le32 *)buffer);
523 out = le32_to_cpu(ar->cmdbuf[0]);
525 /* mask off length byte */
528 if (aru->readlen >= 0) {
529 /* add expected length */
532 /* add obtained length */
537 * Some commands (e.g: AR9170_CMD_FREQUENCY) have a variable response
538 * length and we cannot predict the correct length in advance.
539 * So we only check if we provided enough space for the data.
541 if (unlikely(out < in)) {
542 dev_warn(&aru->udev->dev, "received invalid command response "
543 "got %d bytes, instead of %d bytes "
544 "and the resp length is %d bytes\n",
546 print_hex_dump_bytes("ar9170 invalid resp: ",
547 DUMP_PREFIX_OFFSET, buffer, len);
549 * Do not complete, then the command times out,
550 * and we get a stack trace from there.
555 spin_lock_irqsave(&aru->common.cmdlock, flags);
556 if (aru->readbuf && len > 0) {
557 memcpy(aru->readbuf, buffer + 4, len - 4);
560 complete(&aru->cmd_wait);
561 spin_unlock_irqrestore(&aru->common.cmdlock, flags);
564 static int ar9170_usb_upload(struct ar9170_usb *aru, const void *data,
565 size_t len, u32 addr, bool complete)
568 u8 *buf = kmalloc(4096, GFP_KERNEL);
574 transfer = min_t(int, len, 4096);
575 memcpy(buf, data, transfer);
577 err = usb_control_msg(aru->udev, usb_sndctrlpipe(aru->udev, 0),
578 0x30 /* FW DL */, 0x40 | USB_DIR_OUT,
579 addr >> 8, 0, buf, transfer, 1000);
593 err = usb_control_msg(aru->udev, usb_sndctrlpipe(aru->udev, 0),
594 0x31 /* FW DL COMPLETE */,
595 0x40 | USB_DIR_OUT, 0, 0, NULL, 0, 5000);
601 static int ar9170_usb_reset(struct ar9170_usb *aru)
603 int ret, lock = (aru->intf->condition != USB_INTERFACE_BINDING);
606 ret = usb_lock_device_for_reset(aru->udev, aru->intf);
608 dev_err(&aru->udev->dev, "unable to lock device "
609 "for reset (%d).\n", ret);
614 ret = usb_reset_device(aru->udev);
616 usb_unlock_device(aru->udev);
618 /* let it rest - for a second - */
624 static int ar9170_usb_upload_firmware(struct ar9170_usb *aru)
628 if (!aru->init_values)
629 goto upload_fw_start;
631 /* First, upload initial values to device RAM */
632 err = ar9170_usb_upload(aru, aru->init_values->data,
633 aru->init_values->size, 0x102800, false);
635 dev_err(&aru->udev->dev, "firmware part 1 "
636 "upload failed (%d).\n", err);
642 /* Then, upload the firmware itself and start it */
643 return ar9170_usb_upload(aru, aru->firmware->data, aru->firmware->size,
647 static int ar9170_usb_init_transport(struct ar9170_usb *aru)
649 struct ar9170 *ar = (void *) &aru->common;
652 ar9170_regwrite_begin(ar);
654 /* Set USB Rx stream mode MAX packet number to 2 */
655 ar9170_regwrite(AR9170_USB_REG_MAX_AGG_UPLOAD, 0x4);
657 /* Set USB Rx stream mode timeout to 10us */
658 ar9170_regwrite(AR9170_USB_REG_UPLOAD_TIME_CTL, 0x80);
660 ar9170_regwrite_finish();
662 err = ar9170_regwrite_result();
664 dev_err(&aru->udev->dev, "USB setup failed (%d).\n", err);
669 static void ar9170_usb_stop(struct ar9170 *ar)
671 struct ar9170_usb *aru = (void *) ar;
674 if (IS_ACCEPTING_CMD(ar))
675 aru->common.state = AR9170_STOPPED;
677 ret = ar9170_usb_flush(ar);
679 dev_err(&aru->udev->dev, "kill pending tx urbs.\n");
681 usb_poison_anchored_urbs(&aru->tx_submitted);
685 * So far we freed all tx urbs, but we won't dare to touch any rx urbs.
686 * Else we would end up with a unresponsive device...
690 static int ar9170_usb_open(struct ar9170 *ar)
692 struct ar9170_usb *aru = (void *) ar;
695 usb_unpoison_anchored_urbs(&aru->tx_submitted);
696 err = ar9170_usb_init_transport(aru);
698 usb_poison_anchored_urbs(&aru->tx_submitted);
702 aru->common.state = AR9170_IDLE;
706 static int ar9170_usb_init_device(struct ar9170_usb *aru)
710 err = ar9170_usb_alloc_rx_irq_urb(aru);
714 err = ar9170_usb_alloc_rx_bulk_urbs(aru);
718 err = ar9170_usb_upload_firmware(aru);
720 err = ar9170_echo_test(&aru->common, 0x60d43110);
722 /* force user invention, by disabling the device */
723 err = usb_driver_set_configuration(aru->udev, -1);
724 dev_err(&aru->udev->dev, "device is in a bad state. "
725 "please reconnect it!\n");
733 ar9170_usb_cancel_urbs(aru);
739 static void ar9170_usb_firmware_failed(struct ar9170_usb *aru)
741 struct device *parent = aru->udev->dev.parent;
742 struct usb_device *udev;
745 * Store a copy of the usb_device pointer locally.
746 * This is because device_release_driver initiates
747 * ar9170_usb_disconnect, which in turn frees our
748 * driver context (aru).
752 complete(&aru->firmware_loading_complete);
754 /* unbind anything failed */
758 device_release_driver(&udev->dev);
760 device_unlock(parent);
765 static void ar9170_usb_firmware_finish(const struct firmware *fw, void *context)
767 struct ar9170_usb *aru = context;
773 dev_err(&aru->udev->dev, "firmware file not found.\n");
777 err = ar9170_usb_init_device(aru);
781 err = ar9170_usb_open(&aru->common);
785 err = ar9170_register(&aru->common, &aru->udev->dev);
787 ar9170_usb_stop(&aru->common);
791 complete(&aru->firmware_loading_complete);
792 usb_put_dev(aru->udev);
796 ar9170_usb_cancel_urbs(aru);
799 ar9170_usb_firmware_failed(aru);
802 static void ar9170_usb_firmware_inits(const struct firmware *fw,
805 struct ar9170_usb *aru = context;
809 dev_err(&aru->udev->dev, "file with init values not found.\n");
810 ar9170_usb_firmware_failed(aru);
814 aru->init_values = fw;
816 /* ok so we have the init values -- get code for two-stage */
818 err = request_firmware_nowait(THIS_MODULE, 1, "ar9170-2.fw",
819 &aru->udev->dev, GFP_KERNEL, aru,
820 ar9170_usb_firmware_finish);
822 ar9170_usb_firmware_failed(aru);
825 static void ar9170_usb_firmware_step2(const struct firmware *fw, void *context)
827 struct ar9170_usb *aru = context;
831 ar9170_usb_firmware_finish(fw, context);
835 if (aru->req_one_stage_fw) {
836 dev_err(&aru->udev->dev, "ar9170.fw firmware file "
837 "not found and is required for this device\n");
838 ar9170_usb_firmware_failed(aru);
842 dev_err(&aru->udev->dev, "ar9170.fw firmware file "
843 "not found, trying old firmware...\n");
845 err = request_firmware_nowait(THIS_MODULE, 1, "ar9170-1.fw",
846 &aru->udev->dev, GFP_KERNEL, aru,
847 ar9170_usb_firmware_inits);
849 ar9170_usb_firmware_failed(aru);
852 static bool ar9170_requires_one_stage(const struct usb_device_id *id)
854 if (!id->driver_info)
856 if (id->driver_info == AR9170_REQ_FW1_ONLY)
861 static int ar9170_usb_probe(struct usb_interface *intf,
862 const struct usb_device_id *id)
864 struct ar9170_usb *aru;
866 struct usb_device *udev;
869 aru = ar9170_alloc(sizeof(*aru));
875 udev = interface_to_usbdev(intf);
881 aru->req_one_stage_fw = ar9170_requires_one_stage(id);
883 usb_set_intfdata(intf, aru);
884 SET_IEEE80211_DEV(ar->hw, &intf->dev);
886 init_usb_anchor(&aru->rx_submitted);
887 init_usb_anchor(&aru->tx_pending);
888 init_usb_anchor(&aru->tx_submitted);
889 init_completion(&aru->cmd_wait);
890 init_completion(&aru->firmware_loading_complete);
891 spin_lock_init(&aru->tx_urb_lock);
893 aru->tx_pending_urbs = 0;
894 atomic_set(&aru->tx_submitted_urbs, 0);
896 aru->common.stop = ar9170_usb_stop;
897 aru->common.flush = ar9170_usb_flush;
898 aru->common.open = ar9170_usb_open;
899 aru->common.tx = ar9170_usb_tx;
900 aru->common.exec_cmd = ar9170_usb_exec_cmd;
901 aru->common.callback_cmd = ar9170_usb_callback_cmd;
904 udev->reset_resume = 1;
905 #endif /* CONFIG_PM */
906 err = ar9170_usb_reset(aru);
910 usb_get_dev(aru->udev);
911 return request_firmware_nowait(THIS_MODULE, 1, "ar9170.fw",
912 &aru->udev->dev, GFP_KERNEL, aru,
913 ar9170_usb_firmware_step2);
915 usb_set_intfdata(intf, NULL);
917 ieee80211_free_hw(ar->hw);
922 static void ar9170_usb_disconnect(struct usb_interface *intf)
924 struct ar9170_usb *aru = usb_get_intfdata(intf);
929 aru->common.state = AR9170_IDLE;
931 wait_for_completion(&aru->firmware_loading_complete);
933 ar9170_unregister(&aru->common);
934 ar9170_usb_cancel_urbs(aru);
936 usb_put_dev(aru->udev);
937 usb_set_intfdata(intf, NULL);
938 ieee80211_free_hw(aru->common.hw);
940 release_firmware(aru->init_values);
941 release_firmware(aru->firmware);
945 static int ar9170_suspend(struct usb_interface *intf,
946 pm_message_t message)
948 struct ar9170_usb *aru = usb_get_intfdata(intf);
953 aru->common.state = AR9170_IDLE;
954 ar9170_usb_cancel_urbs(aru);
959 static int ar9170_resume(struct usb_interface *intf)
961 struct ar9170_usb *aru = usb_get_intfdata(intf);
967 usb_unpoison_anchored_urbs(&aru->rx_submitted);
968 usb_unpoison_anchored_urbs(&aru->tx_submitted);
970 err = ar9170_usb_init_device(aru);
974 err = ar9170_usb_open(&aru->common);
981 aru->common.state = AR9170_IDLE;
982 ar9170_usb_cancel_urbs(aru);
986 #endif /* CONFIG_PM */
988 static struct usb_driver ar9170_driver = {
990 .probe = ar9170_usb_probe,
991 .disconnect = ar9170_usb_disconnect,
992 .id_table = ar9170_usb_ids,
995 .suspend = ar9170_suspend,
996 .resume = ar9170_resume,
997 .reset_resume = ar9170_resume,
998 #endif /* CONFIG_PM */
1001 static int __init ar9170_init(void)
1003 return usb_register(&ar9170_driver);
1006 static void __exit ar9170_exit(void)
1008 usb_deregister(&ar9170_driver);
1011 module_init(ar9170_init);
1012 module_exit(ar9170_exit);