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Commit | Line | Data |
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fb9987d0 S |
1 | /* |
2 | * Copyright (c) 2010 Atheros Communications Inc. | |
3 | * | |
4 | * Permission to use, copy, modify, and/or distribute this software for any | |
5 | * purpose with or without fee is hereby granted, provided that the above | |
6 | * copyright notice and this permission notice appear in all copies. | |
7 | * | |
8 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES | |
9 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF | |
10 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR | |
11 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES | |
12 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN | |
13 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF | |
14 | * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | |
15 | */ | |
16 | ||
17 | #include "htc.h" | |
18 | ||
d0ee0ebe JL |
19 | /* identify firmware images */ |
20 | #define FIRMWARE_AR7010 "ar7010.fw" | |
21 | #define FIRMWARE_AR7010_1_1 "ar7010_1_1.fw" | |
22 | #define FIRMWARE_AR9271 "ar9271.fw" | |
23 | ||
24 | MODULE_FIRMWARE(FIRMWARE_AR7010); | |
25 | MODULE_FIRMWARE(FIRMWARE_AR7010_1_1); | |
26 | MODULE_FIRMWARE(FIRMWARE_AR9271); | |
27 | ||
fb9987d0 | 28 | static struct usb_device_id ath9k_hif_usb_ids[] = { |
4e63f768 S |
29 | { USB_DEVICE(0x0cf3, 0x9271) }, /* Atheros */ |
30 | { USB_DEVICE(0x0cf3, 0x1006) }, /* Atheros */ | |
31 | { USB_DEVICE(0x0cf3, 0x7010) }, /* Atheros */ | |
32 | { USB_DEVICE(0x0cf3, 0x7015) }, /* Atheros */ | |
33 | { USB_DEVICE(0x0846, 0x9030) }, /* Netgear N150 */ | |
34 | { USB_DEVICE(0x0846, 0x9018) }, /* Netgear WNDA3200 */ | |
35 | { USB_DEVICE(0x07D1, 0x3A10) }, /* Dlink Wireless 150 */ | |
36 | { USB_DEVICE(0x13D3, 0x3327) }, /* Azurewave */ | |
37 | { USB_DEVICE(0x13D3, 0x3328) }, /* Azurewave */ | |
ac618d70 | 38 | { USB_DEVICE(0x13D3, 0x3346) }, /* IMC Networks */ |
32b08955 RM |
39 | { USB_DEVICE(0x13D3, 0x3348) }, /* Azurewave */ |
40 | { USB_DEVICE(0x13D3, 0x3349) }, /* Azurewave */ | |
41 | { USB_DEVICE(0x13D3, 0x3350) }, /* Azurewave */ | |
4e63f768 S |
42 | { USB_DEVICE(0x04CA, 0x4605) }, /* Liteon */ |
43 | { USB_DEVICE(0x083A, 0xA704) }, /* SMC Networks */ | |
32b08955 RM |
44 | { USB_DEVICE(0x040D, 0x3801) }, /* VIA */ |
45 | { USB_DEVICE(0x1668, 0x1200) }, /* Verizon */ | |
fb9987d0 S |
46 | { }, |
47 | }; | |
48 | ||
49 | MODULE_DEVICE_TABLE(usb, ath9k_hif_usb_ids); | |
50 | ||
51 | static int __hif_usb_tx(struct hif_device_usb *hif_dev); | |
52 | ||
53 | static void hif_usb_regout_cb(struct urb *urb) | |
54 | { | |
55 | struct cmd_buf *cmd = (struct cmd_buf *)urb->context; | |
fb9987d0 S |
56 | |
57 | switch (urb->status) { | |
58 | case 0: | |
59 | break; | |
60 | case -ENOENT: | |
61 | case -ECONNRESET: | |
fb9987d0 S |
62 | case -ENODEV: |
63 | case -ESHUTDOWN: | |
6f0f2669 | 64 | goto free; |
fb9987d0 S |
65 | default: |
66 | break; | |
67 | } | |
68 | ||
69 | if (cmd) { | |
70 | ath9k_htc_txcompletion_cb(cmd->hif_dev->htc_handle, | |
71 | cmd->skb, 1); | |
72 | kfree(cmd); | |
fb9987d0 | 73 | } |
6f0f2669 S |
74 | |
75 | return; | |
76 | free: | |
0fa35a58 | 77 | kfree_skb(cmd->skb); |
6f0f2669 | 78 | kfree(cmd); |
fb9987d0 S |
79 | } |
80 | ||
81 | static int hif_usb_send_regout(struct hif_device_usb *hif_dev, | |
82 | struct sk_buff *skb) | |
83 | { | |
84 | struct urb *urb; | |
85 | struct cmd_buf *cmd; | |
86 | int ret = 0; | |
87 | ||
88 | urb = usb_alloc_urb(0, GFP_KERNEL); | |
89 | if (urb == NULL) | |
90 | return -ENOMEM; | |
91 | ||
92 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
93 | if (cmd == NULL) { | |
94 | usb_free_urb(urb); | |
95 | return -ENOMEM; | |
96 | } | |
97 | ||
98 | cmd->skb = skb; | |
99 | cmd->hif_dev = hif_dev; | |
100 | ||
4a0e8ecc RM |
101 | usb_fill_bulk_urb(urb, hif_dev->udev, |
102 | usb_sndbulkpipe(hif_dev->udev, USB_REG_OUT_PIPE), | |
fb9987d0 | 103 | skb->data, skb->len, |
4a0e8ecc | 104 | hif_usb_regout_cb, cmd); |
fb9987d0 | 105 | |
6f0f2669 | 106 | usb_anchor_urb(urb, &hif_dev->regout_submitted); |
fb9987d0 S |
107 | ret = usb_submit_urb(urb, GFP_KERNEL); |
108 | if (ret) { | |
6f0f2669 | 109 | usb_unanchor_urb(urb); |
fb9987d0 S |
110 | kfree(cmd); |
111 | } | |
6f0f2669 | 112 | usb_free_urb(urb); |
fb9987d0 S |
113 | |
114 | return ret; | |
115 | } | |
116 | ||
c11d8f89 S |
117 | static inline void ath9k_skb_queue_purge(struct hif_device_usb *hif_dev, |
118 | struct sk_buff_head *list) | |
119 | { | |
120 | struct sk_buff *skb; | |
121 | ||
122 | while ((skb = __skb_dequeue(list)) != NULL) { | |
123 | dev_kfree_skb_any(skb); | |
124 | TX_STAT_INC(skb_dropped); | |
125 | } | |
126 | } | |
127 | ||
fb9987d0 S |
128 | static void hif_usb_tx_cb(struct urb *urb) |
129 | { | |
130 | struct tx_buf *tx_buf = (struct tx_buf *) urb->context; | |
690e781c | 131 | struct hif_device_usb *hif_dev; |
fb9987d0 | 132 | struct sk_buff *skb; |
fb9987d0 | 133 | |
690e781c | 134 | if (!tx_buf || !tx_buf->hif_dev) |
fb9987d0 S |
135 | return; |
136 | ||
690e781c DC |
137 | hif_dev = tx_buf->hif_dev; |
138 | ||
fb9987d0 S |
139 | switch (urb->status) { |
140 | case 0: | |
141 | break; | |
142 | case -ENOENT: | |
143 | case -ECONNRESET: | |
fb9987d0 S |
144 | case -ENODEV: |
145 | case -ESHUTDOWN: | |
c11d8f89 S |
146 | /* |
147 | * The URB has been killed, free the SKBs | |
148 | * and return. | |
149 | */ | |
150 | ath9k_skb_queue_purge(hif_dev, &tx_buf->skb_queue); | |
fb9987d0 S |
151 | return; |
152 | default: | |
153 | break; | |
154 | } | |
155 | ||
c11d8f89 S |
156 | /* Check if TX has been stopped */ |
157 | spin_lock(&hif_dev->tx.tx_lock); | |
158 | if (hif_dev->tx.flags & HIF_USB_TX_STOP) { | |
fb9987d0 | 159 | spin_unlock(&hif_dev->tx.tx_lock); |
c11d8f89 S |
160 | ath9k_skb_queue_purge(hif_dev, &tx_buf->skb_queue); |
161 | goto add_free; | |
fb9987d0 | 162 | } |
c11d8f89 | 163 | spin_unlock(&hif_dev->tx.tx_lock); |
fb9987d0 | 164 | |
c11d8f89 S |
165 | /* Complete the queued SKBs. */ |
166 | while ((skb = __skb_dequeue(&tx_buf->skb_queue)) != NULL) { | |
167 | ath9k_htc_txcompletion_cb(hif_dev->htc_handle, | |
168 | skb, 1); | |
169 | TX_STAT_INC(skb_completed); | |
eac8e385 | 170 | } |
c11d8f89 S |
171 | |
172 | add_free: | |
173 | /* Re-initialize the SKB queue */ | |
174 | tx_buf->len = tx_buf->offset = 0; | |
175 | __skb_queue_head_init(&tx_buf->skb_queue); | |
176 | ||
177 | /* Add this TX buffer to the free list */ | |
178 | spin_lock(&hif_dev->tx.tx_lock); | |
179 | list_move_tail(&tx_buf->list, &hif_dev->tx.tx_buf); | |
180 | hif_dev->tx.tx_buf_cnt++; | |
181 | if (!(hif_dev->tx.flags & HIF_USB_TX_STOP)) | |
182 | __hif_usb_tx(hif_dev); /* Check for pending SKBs */ | |
183 | TX_STAT_INC(buf_completed); | |
184 | spin_unlock(&hif_dev->tx.tx_lock); | |
f8e1d080 ML |
185 | } |
186 | ||
fb9987d0 S |
187 | /* TX lock has to be taken */ |
188 | static int __hif_usb_tx(struct hif_device_usb *hif_dev) | |
189 | { | |
190 | struct tx_buf *tx_buf = NULL; | |
191 | struct sk_buff *nskb = NULL; | |
192 | int ret = 0, i; | |
193 | u16 *hdr, tx_skb_cnt = 0; | |
194 | u8 *buf; | |
195 | ||
196 | if (hif_dev->tx.tx_skb_cnt == 0) | |
197 | return 0; | |
198 | ||
199 | /* Check if a free TX buffer is available */ | |
200 | if (list_empty(&hif_dev->tx.tx_buf)) | |
201 | return 0; | |
202 | ||
203 | tx_buf = list_first_entry(&hif_dev->tx.tx_buf, struct tx_buf, list); | |
c11d8f89 | 204 | list_move_tail(&tx_buf->list, &hif_dev->tx.tx_pending); |
fb9987d0 S |
205 | hif_dev->tx.tx_buf_cnt--; |
206 | ||
207 | tx_skb_cnt = min_t(u16, hif_dev->tx.tx_skb_cnt, MAX_TX_AGGR_NUM); | |
208 | ||
209 | for (i = 0; i < tx_skb_cnt; i++) { | |
210 | nskb = __skb_dequeue(&hif_dev->tx.tx_skb_queue); | |
211 | ||
212 | /* Should never be NULL */ | |
213 | BUG_ON(!nskb); | |
214 | ||
215 | hif_dev->tx.tx_skb_cnt--; | |
216 | ||
217 | buf = tx_buf->buf; | |
218 | buf += tx_buf->offset; | |
219 | hdr = (u16 *)buf; | |
220 | *hdr++ = nskb->len; | |
221 | *hdr++ = ATH_USB_TX_STREAM_MODE_TAG; | |
222 | buf += 4; | |
223 | memcpy(buf, nskb->data, nskb->len); | |
224 | tx_buf->len = nskb->len + 4; | |
225 | ||
226 | if (i < (tx_skb_cnt - 1)) | |
227 | tx_buf->offset += (((tx_buf->len - 1) / 4) + 1) * 4; | |
228 | ||
229 | if (i == (tx_skb_cnt - 1)) | |
230 | tx_buf->len += tx_buf->offset; | |
231 | ||
232 | __skb_queue_tail(&tx_buf->skb_queue, nskb); | |
233 | TX_STAT_INC(skb_queued); | |
234 | } | |
235 | ||
236 | usb_fill_bulk_urb(tx_buf->urb, hif_dev->udev, | |
237 | usb_sndbulkpipe(hif_dev->udev, USB_WLAN_TX_PIPE), | |
238 | tx_buf->buf, tx_buf->len, | |
239 | hif_usb_tx_cb, tx_buf); | |
240 | ||
241 | ret = usb_submit_urb(tx_buf->urb, GFP_ATOMIC); | |
242 | if (ret) { | |
243 | tx_buf->len = tx_buf->offset = 0; | |
eac8e385 | 244 | ath9k_skb_queue_purge(hif_dev, &tx_buf->skb_queue); |
fb9987d0 S |
245 | __skb_queue_head_init(&tx_buf->skb_queue); |
246 | list_move_tail(&tx_buf->list, &hif_dev->tx.tx_buf); | |
247 | hif_dev->tx.tx_buf_cnt++; | |
248 | } | |
249 | ||
250 | if (!ret) | |
251 | TX_STAT_INC(buf_queued); | |
252 | ||
253 | return ret; | |
254 | } | |
255 | ||
256 | static int hif_usb_send_tx(struct hif_device_usb *hif_dev, struct sk_buff *skb, | |
257 | struct ath9k_htc_tx_ctl *tx_ctl) | |
258 | { | |
259 | unsigned long flags; | |
260 | ||
261 | spin_lock_irqsave(&hif_dev->tx.tx_lock, flags); | |
262 | ||
263 | if (hif_dev->tx.flags & HIF_USB_TX_STOP) { | |
264 | spin_unlock_irqrestore(&hif_dev->tx.tx_lock, flags); | |
265 | return -ENODEV; | |
266 | } | |
267 | ||
268 | /* Check if the max queue count has been reached */ | |
269 | if (hif_dev->tx.tx_skb_cnt > MAX_TX_BUF_NUM) { | |
270 | spin_unlock_irqrestore(&hif_dev->tx.tx_lock, flags); | |
271 | return -ENOMEM; | |
272 | } | |
273 | ||
274 | __skb_queue_tail(&hif_dev->tx.tx_skb_queue, skb); | |
275 | hif_dev->tx.tx_skb_cnt++; | |
276 | ||
277 | /* Send normal frames immediately */ | |
278 | if (!tx_ctl || (tx_ctl && (tx_ctl->type == ATH9K_HTC_NORMAL))) | |
279 | __hif_usb_tx(hif_dev); | |
280 | ||
281 | /* Check if AMPDUs have to be sent immediately */ | |
282 | if (tx_ctl && (tx_ctl->type == ATH9K_HTC_AMPDU) && | |
283 | (hif_dev->tx.tx_buf_cnt == MAX_TX_URB_NUM) && | |
284 | (hif_dev->tx.tx_skb_cnt < 2)) { | |
285 | __hif_usb_tx(hif_dev); | |
286 | } | |
287 | ||
288 | spin_unlock_irqrestore(&hif_dev->tx.tx_lock, flags); | |
289 | ||
290 | return 0; | |
291 | } | |
292 | ||
293 | static void hif_usb_start(void *hif_handle, u8 pipe_id) | |
294 | { | |
295 | struct hif_device_usb *hif_dev = (struct hif_device_usb *)hif_handle; | |
296 | unsigned long flags; | |
297 | ||
298 | hif_dev->flags |= HIF_USB_START; | |
299 | ||
300 | spin_lock_irqsave(&hif_dev->tx.tx_lock, flags); | |
301 | hif_dev->tx.flags &= ~HIF_USB_TX_STOP; | |
302 | spin_unlock_irqrestore(&hif_dev->tx.tx_lock, flags); | |
303 | } | |
304 | ||
305 | static void hif_usb_stop(void *hif_handle, u8 pipe_id) | |
306 | { | |
307 | struct hif_device_usb *hif_dev = (struct hif_device_usb *)hif_handle; | |
308 | unsigned long flags; | |
309 | ||
310 | spin_lock_irqsave(&hif_dev->tx.tx_lock, flags); | |
eac8e385 | 311 | ath9k_skb_queue_purge(hif_dev, &hif_dev->tx.tx_skb_queue); |
fb9987d0 S |
312 | hif_dev->tx.tx_skb_cnt = 0; |
313 | hif_dev->tx.flags |= HIF_USB_TX_STOP; | |
314 | spin_unlock_irqrestore(&hif_dev->tx.tx_lock, flags); | |
315 | } | |
316 | ||
317 | static int hif_usb_send(void *hif_handle, u8 pipe_id, struct sk_buff *skb, | |
318 | struct ath9k_htc_tx_ctl *tx_ctl) | |
319 | { | |
320 | struct hif_device_usb *hif_dev = (struct hif_device_usb *)hif_handle; | |
321 | int ret = 0; | |
322 | ||
323 | switch (pipe_id) { | |
324 | case USB_WLAN_TX_PIPE: | |
325 | ret = hif_usb_send_tx(hif_dev, skb, tx_ctl); | |
326 | break; | |
327 | case USB_REG_OUT_PIPE: | |
328 | ret = hif_usb_send_regout(hif_dev, skb); | |
329 | break; | |
330 | default: | |
6335ed0f S |
331 | dev_err(&hif_dev->udev->dev, |
332 | "ath9k_htc: Invalid TX pipe: %d\n", pipe_id); | |
fb9987d0 S |
333 | ret = -EINVAL; |
334 | break; | |
335 | } | |
336 | ||
337 | return ret; | |
338 | } | |
339 | ||
340 | static struct ath9k_htc_hif hif_usb = { | |
341 | .transport = ATH9K_HIF_USB, | |
342 | .name = "ath9k_hif_usb", | |
343 | ||
344 | .control_ul_pipe = USB_REG_OUT_PIPE, | |
345 | .control_dl_pipe = USB_REG_IN_PIPE, | |
346 | ||
347 | .start = hif_usb_start, | |
348 | .stop = hif_usb_stop, | |
349 | .send = hif_usb_send, | |
350 | }; | |
351 | ||
352 | static void ath9k_hif_usb_rx_stream(struct hif_device_usb *hif_dev, | |
353 | struct sk_buff *skb) | |
354 | { | |
c503269a | 355 | struct sk_buff *nskb, *skb_pool[MAX_PKT_NUM_IN_TRANSFER]; |
fb9987d0 S |
356 | int index = 0, i = 0, chk_idx, len = skb->len; |
357 | int rx_remain_len = 0, rx_pkt_len = 0; | |
358 | u16 pkt_len, pkt_tag, pool_index = 0; | |
359 | u8 *ptr; | |
360 | ||
46baa1a2 S |
361 | spin_lock(&hif_dev->rx_lock); |
362 | ||
fb9987d0 S |
363 | rx_remain_len = hif_dev->rx_remain_len; |
364 | rx_pkt_len = hif_dev->rx_transfer_len; | |
365 | ||
366 | if (rx_remain_len != 0) { | |
367 | struct sk_buff *remain_skb = hif_dev->remain_skb; | |
368 | ||
369 | if (remain_skb) { | |
370 | ptr = (u8 *) remain_skb->data; | |
371 | ||
372 | index = rx_remain_len; | |
373 | rx_remain_len -= hif_dev->rx_pad_len; | |
374 | ptr += rx_pkt_len; | |
375 | ||
376 | memcpy(ptr, skb->data, rx_remain_len); | |
377 | ||
378 | rx_pkt_len += rx_remain_len; | |
379 | hif_dev->rx_remain_len = 0; | |
380 | skb_put(remain_skb, rx_pkt_len); | |
381 | ||
382 | skb_pool[pool_index++] = remain_skb; | |
383 | ||
384 | } else { | |
385 | index = rx_remain_len; | |
386 | } | |
387 | } | |
388 | ||
46baa1a2 S |
389 | spin_unlock(&hif_dev->rx_lock); |
390 | ||
fb9987d0 S |
391 | while (index < len) { |
392 | ptr = (u8 *) skb->data; | |
393 | ||
394 | pkt_len = ptr[index] + (ptr[index+1] << 8); | |
395 | pkt_tag = ptr[index+2] + (ptr[index+3] << 8); | |
396 | ||
397 | if (pkt_tag == ATH_USB_RX_STREAM_MODE_TAG) { | |
398 | u16 pad_len; | |
399 | ||
400 | pad_len = 4 - (pkt_len & 0x3); | |
401 | if (pad_len == 4) | |
402 | pad_len = 0; | |
403 | ||
404 | chk_idx = index; | |
405 | index = index + 4 + pkt_len + pad_len; | |
406 | ||
407 | if (index > MAX_RX_BUF_SIZE) { | |
46baa1a2 | 408 | spin_lock(&hif_dev->rx_lock); |
fb9987d0 S |
409 | hif_dev->rx_remain_len = index - MAX_RX_BUF_SIZE; |
410 | hif_dev->rx_transfer_len = | |
411 | MAX_RX_BUF_SIZE - chk_idx - 4; | |
412 | hif_dev->rx_pad_len = pad_len; | |
413 | ||
414 | nskb = __dev_alloc_skb(pkt_len + 32, | |
415 | GFP_ATOMIC); | |
416 | if (!nskb) { | |
417 | dev_err(&hif_dev->udev->dev, | |
418 | "ath9k_htc: RX memory allocation" | |
419 | " error\n"); | |
46baa1a2 | 420 | spin_unlock(&hif_dev->rx_lock); |
fb9987d0 S |
421 | goto err; |
422 | } | |
423 | skb_reserve(nskb, 32); | |
424 | RX_STAT_INC(skb_allocated); | |
425 | ||
426 | memcpy(nskb->data, &(skb->data[chk_idx+4]), | |
427 | hif_dev->rx_transfer_len); | |
428 | ||
429 | /* Record the buffer pointer */ | |
430 | hif_dev->remain_skb = nskb; | |
46baa1a2 | 431 | spin_unlock(&hif_dev->rx_lock); |
fb9987d0 S |
432 | } else { |
433 | nskb = __dev_alloc_skb(pkt_len + 32, GFP_ATOMIC); | |
434 | if (!nskb) { | |
435 | dev_err(&hif_dev->udev->dev, | |
436 | "ath9k_htc: RX memory allocation" | |
437 | " error\n"); | |
438 | goto err; | |
439 | } | |
440 | skb_reserve(nskb, 32); | |
441 | RX_STAT_INC(skb_allocated); | |
442 | ||
443 | memcpy(nskb->data, &(skb->data[chk_idx+4]), pkt_len); | |
444 | skb_put(nskb, pkt_len); | |
445 | skb_pool[pool_index++] = nskb; | |
446 | } | |
447 | } else { | |
448 | RX_STAT_INC(skb_dropped); | |
fb9987d0 S |
449 | return; |
450 | } | |
451 | } | |
452 | ||
453 | err: | |
fb9987d0 S |
454 | for (i = 0; i < pool_index; i++) { |
455 | ath9k_htc_rx_msg(hif_dev->htc_handle, skb_pool[i], | |
456 | skb_pool[i]->len, USB_WLAN_RX_PIPE); | |
457 | RX_STAT_INC(skb_completed); | |
458 | } | |
459 | } | |
460 | ||
461 | static void ath9k_hif_usb_rx_cb(struct urb *urb) | |
462 | { | |
463 | struct sk_buff *skb = (struct sk_buff *) urb->context; | |
fb9987d0 S |
464 | struct hif_device_usb *hif_dev = (struct hif_device_usb *) |
465 | usb_get_intfdata(usb_ifnum_to_if(urb->dev, 0)); | |
466 | int ret; | |
467 | ||
6335ed0f S |
468 | if (!skb) |
469 | return; | |
470 | ||
fb9987d0 S |
471 | if (!hif_dev) |
472 | goto free; | |
473 | ||
474 | switch (urb->status) { | |
475 | case 0: | |
476 | break; | |
477 | case -ENOENT: | |
478 | case -ECONNRESET: | |
479 | case -ENODEV: | |
480 | case -ESHUTDOWN: | |
481 | goto free; | |
482 | default: | |
483 | goto resubmit; | |
484 | } | |
485 | ||
486 | if (likely(urb->actual_length != 0)) { | |
487 | skb_put(skb, urb->actual_length); | |
fb9987d0 | 488 | ath9k_hif_usb_rx_stream(hif_dev, skb); |
fb9987d0 S |
489 | } |
490 | ||
491 | resubmit: | |
492 | skb_reset_tail_pointer(skb); | |
493 | skb_trim(skb, 0); | |
494 | ||
6335ed0f | 495 | usb_anchor_urb(urb, &hif_dev->rx_submitted); |
fb9987d0 | 496 | ret = usb_submit_urb(urb, GFP_ATOMIC); |
6335ed0f S |
497 | if (ret) { |
498 | usb_unanchor_urb(urb); | |
fb9987d0 | 499 | goto free; |
6335ed0f | 500 | } |
fb9987d0 S |
501 | |
502 | return; | |
503 | free: | |
f28a7b30 | 504 | kfree_skb(skb); |
fb9987d0 S |
505 | } |
506 | ||
507 | static void ath9k_hif_usb_reg_in_cb(struct urb *urb) | |
508 | { | |
509 | struct sk_buff *skb = (struct sk_buff *) urb->context; | |
510 | struct sk_buff *nskb; | |
511 | struct hif_device_usb *hif_dev = (struct hif_device_usb *) | |
512 | usb_get_intfdata(usb_ifnum_to_if(urb->dev, 0)); | |
513 | int ret; | |
514 | ||
6335ed0f S |
515 | if (!skb) |
516 | return; | |
517 | ||
fb9987d0 S |
518 | if (!hif_dev) |
519 | goto free; | |
520 | ||
521 | switch (urb->status) { | |
522 | case 0: | |
523 | break; | |
524 | case -ENOENT: | |
525 | case -ECONNRESET: | |
526 | case -ENODEV: | |
527 | case -ESHUTDOWN: | |
528 | goto free; | |
529 | default: | |
530 | goto resubmit; | |
531 | } | |
532 | ||
533 | if (likely(urb->actual_length != 0)) { | |
534 | skb_put(skb, urb->actual_length); | |
535 | ||
5ab0af32 S |
536 | /* Process the command first */ |
537 | ath9k_htc_rx_msg(hif_dev->htc_handle, skb, | |
538 | skb->len, USB_REG_IN_PIPE); | |
539 | ||
540 | ||
e6c6d33c | 541 | nskb = alloc_skb(MAX_REG_IN_BUF_SIZE, GFP_ATOMIC); |
5ab0af32 S |
542 | if (!nskb) { |
543 | dev_err(&hif_dev->udev->dev, | |
544 | "ath9k_htc: REG_IN memory allocation failure\n"); | |
545 | urb->context = NULL; | |
546 | return; | |
547 | } | |
fb9987d0 | 548 | |
490b3f4e | 549 | usb_fill_bulk_urb(urb, hif_dev->udev, |
0f529e98 RM |
550 | usb_rcvbulkpipe(hif_dev->udev, |
551 | USB_REG_IN_PIPE), | |
fb9987d0 | 552 | nskb->data, MAX_REG_IN_BUF_SIZE, |
490b3f4e | 553 | ath9k_hif_usb_reg_in_cb, nskb); |
fb9987d0 S |
554 | |
555 | ret = usb_submit_urb(urb, GFP_ATOMIC); | |
556 | if (ret) { | |
e6c6d33c | 557 | kfree_skb(nskb); |
5ab0af32 | 558 | urb->context = NULL; |
fb9987d0 S |
559 | } |
560 | ||
fb9987d0 S |
561 | return; |
562 | } | |
563 | ||
564 | resubmit: | |
565 | skb_reset_tail_pointer(skb); | |
566 | skb_trim(skb, 0); | |
567 | ||
568 | ret = usb_submit_urb(urb, GFP_ATOMIC); | |
569 | if (ret) | |
570 | goto free; | |
571 | ||
572 | return; | |
573 | free: | |
e6c6d33c | 574 | kfree_skb(skb); |
6335ed0f | 575 | urb->context = NULL; |
fb9987d0 S |
576 | } |
577 | ||
578 | static void ath9k_hif_usb_dealloc_tx_urbs(struct hif_device_usb *hif_dev) | |
579 | { | |
fb9987d0 S |
580 | struct tx_buf *tx_buf = NULL, *tx_buf_tmp = NULL; |
581 | ||
c11d8f89 S |
582 | list_for_each_entry_safe(tx_buf, tx_buf_tmp, |
583 | &hif_dev->tx.tx_buf, list) { | |
584 | usb_kill_urb(tx_buf->urb); | |
fb9987d0 S |
585 | list_del(&tx_buf->list); |
586 | usb_free_urb(tx_buf->urb); | |
587 | kfree(tx_buf->buf); | |
588 | kfree(tx_buf); | |
589 | } | |
590 | ||
fb9987d0 S |
591 | list_for_each_entry_safe(tx_buf, tx_buf_tmp, |
592 | &hif_dev->tx.tx_pending, list) { | |
593 | usb_kill_urb(tx_buf->urb); | |
594 | list_del(&tx_buf->list); | |
595 | usb_free_urb(tx_buf->urb); | |
596 | kfree(tx_buf->buf); | |
597 | kfree(tx_buf); | |
598 | } | |
fb9987d0 S |
599 | } |
600 | ||
601 | static int ath9k_hif_usb_alloc_tx_urbs(struct hif_device_usb *hif_dev) | |
602 | { | |
603 | struct tx_buf *tx_buf; | |
604 | int i; | |
605 | ||
606 | INIT_LIST_HEAD(&hif_dev->tx.tx_buf); | |
607 | INIT_LIST_HEAD(&hif_dev->tx.tx_pending); | |
608 | spin_lock_init(&hif_dev->tx.tx_lock); | |
609 | __skb_queue_head_init(&hif_dev->tx.tx_skb_queue); | |
610 | ||
611 | for (i = 0; i < MAX_TX_URB_NUM; i++) { | |
612 | tx_buf = kzalloc(sizeof(struct tx_buf), GFP_KERNEL); | |
613 | if (!tx_buf) | |
614 | goto err; | |
615 | ||
616 | tx_buf->buf = kzalloc(MAX_TX_BUF_SIZE, GFP_KERNEL); | |
617 | if (!tx_buf->buf) | |
618 | goto err; | |
619 | ||
620 | tx_buf->urb = usb_alloc_urb(0, GFP_KERNEL); | |
621 | if (!tx_buf->urb) | |
622 | goto err; | |
623 | ||
624 | tx_buf->hif_dev = hif_dev; | |
625 | __skb_queue_head_init(&tx_buf->skb_queue); | |
626 | ||
627 | list_add_tail(&tx_buf->list, &hif_dev->tx.tx_buf); | |
628 | } | |
629 | ||
630 | hif_dev->tx.tx_buf_cnt = MAX_TX_URB_NUM; | |
631 | ||
632 | return 0; | |
633 | err: | |
7606688a DC |
634 | if (tx_buf) { |
635 | kfree(tx_buf->buf); | |
636 | kfree(tx_buf); | |
637 | } | |
fb9987d0 S |
638 | ath9k_hif_usb_dealloc_tx_urbs(hif_dev); |
639 | return -ENOMEM; | |
640 | } | |
641 | ||
fb9987d0 S |
642 | static void ath9k_hif_usb_dealloc_rx_urbs(struct hif_device_usb *hif_dev) |
643 | { | |
6335ed0f | 644 | usb_kill_anchored_urbs(&hif_dev->rx_submitted); |
fb9987d0 S |
645 | } |
646 | ||
647 | static int ath9k_hif_usb_alloc_rx_urbs(struct hif_device_usb *hif_dev) | |
648 | { | |
6335ed0f S |
649 | struct urb *urb = NULL; |
650 | struct sk_buff *skb = NULL; | |
fb9987d0 S |
651 | int i, ret; |
652 | ||
6335ed0f | 653 | init_usb_anchor(&hif_dev->rx_submitted); |
46baa1a2 | 654 | spin_lock_init(&hif_dev->rx_lock); |
6335ed0f | 655 | |
fb9987d0 S |
656 | for (i = 0; i < MAX_RX_URB_NUM; i++) { |
657 | ||
658 | /* Allocate URB */ | |
6335ed0f S |
659 | urb = usb_alloc_urb(0, GFP_KERNEL); |
660 | if (urb == NULL) { | |
fb9987d0 | 661 | ret = -ENOMEM; |
6335ed0f | 662 | goto err_urb; |
fb9987d0 S |
663 | } |
664 | ||
665 | /* Allocate buffer */ | |
f28a7b30 | 666 | skb = alloc_skb(MAX_RX_BUF_SIZE, GFP_KERNEL); |
6335ed0f S |
667 | if (!skb) { |
668 | ret = -ENOMEM; | |
669 | goto err_skb; | |
670 | } | |
fb9987d0 | 671 | |
6335ed0f S |
672 | usb_fill_bulk_urb(urb, hif_dev->udev, |
673 | usb_rcvbulkpipe(hif_dev->udev, | |
674 | USB_WLAN_RX_PIPE), | |
675 | skb->data, MAX_RX_BUF_SIZE, | |
676 | ath9k_hif_usb_rx_cb, skb); | |
677 | ||
678 | /* Anchor URB */ | |
679 | usb_anchor_urb(urb, &hif_dev->rx_submitted); | |
fb9987d0 | 680 | |
6335ed0f S |
681 | /* Submit URB */ |
682 | ret = usb_submit_urb(urb, GFP_KERNEL); | |
683 | if (ret) { | |
684 | usb_unanchor_urb(urb); | |
685 | goto err_submit; | |
686 | } | |
66b10e33 S |
687 | |
688 | /* | |
689 | * Drop reference count. | |
690 | * This ensures that the URB is freed when killing them. | |
691 | */ | |
692 | usb_free_urb(urb); | |
fb9987d0 S |
693 | } |
694 | ||
695 | return 0; | |
696 | ||
6335ed0f | 697 | err_submit: |
f28a7b30 | 698 | kfree_skb(skb); |
6335ed0f S |
699 | err_skb: |
700 | usb_free_urb(urb); | |
701 | err_urb: | |
fb9987d0 S |
702 | ath9k_hif_usb_dealloc_rx_urbs(hif_dev); |
703 | return ret; | |
704 | } | |
705 | ||
706 | static void ath9k_hif_usb_dealloc_reg_in_urb(struct hif_device_usb *hif_dev) | |
707 | { | |
708 | if (hif_dev->reg_in_urb) { | |
709 | usb_kill_urb(hif_dev->reg_in_urb); | |
6335ed0f | 710 | if (hif_dev->reg_in_urb->context) |
e6c6d33c | 711 | kfree_skb((void *)hif_dev->reg_in_urb->context); |
fb9987d0 S |
712 | usb_free_urb(hif_dev->reg_in_urb); |
713 | hif_dev->reg_in_urb = NULL; | |
714 | } | |
715 | } | |
716 | ||
717 | static int ath9k_hif_usb_alloc_reg_in_urb(struct hif_device_usb *hif_dev) | |
718 | { | |
719 | struct sk_buff *skb; | |
720 | ||
721 | hif_dev->reg_in_urb = usb_alloc_urb(0, GFP_KERNEL); | |
722 | if (hif_dev->reg_in_urb == NULL) | |
723 | return -ENOMEM; | |
724 | ||
e6c6d33c | 725 | skb = alloc_skb(MAX_REG_IN_BUF_SIZE, GFP_KERNEL); |
fb9987d0 S |
726 | if (!skb) |
727 | goto err; | |
728 | ||
490b3f4e | 729 | usb_fill_bulk_urb(hif_dev->reg_in_urb, hif_dev->udev, |
0f529e98 RM |
730 | usb_rcvbulkpipe(hif_dev->udev, |
731 | USB_REG_IN_PIPE), | |
fb9987d0 | 732 | skb->data, MAX_REG_IN_BUF_SIZE, |
490b3f4e | 733 | ath9k_hif_usb_reg_in_cb, skb); |
fb9987d0 S |
734 | |
735 | if (usb_submit_urb(hif_dev->reg_in_urb, GFP_KERNEL) != 0) | |
6335ed0f | 736 | goto err; |
fb9987d0 S |
737 | |
738 | return 0; | |
739 | ||
fb9987d0 S |
740 | err: |
741 | ath9k_hif_usb_dealloc_reg_in_urb(hif_dev); | |
742 | return -ENOMEM; | |
743 | } | |
744 | ||
745 | static int ath9k_hif_usb_alloc_urbs(struct hif_device_usb *hif_dev) | |
746 | { | |
6f0f2669 S |
747 | /* Register Write */ |
748 | init_usb_anchor(&hif_dev->regout_submitted); | |
749 | ||
fb9987d0 S |
750 | /* TX */ |
751 | if (ath9k_hif_usb_alloc_tx_urbs(hif_dev) < 0) | |
752 | goto err; | |
753 | ||
754 | /* RX */ | |
755 | if (ath9k_hif_usb_alloc_rx_urbs(hif_dev) < 0) | |
f8036965 | 756 | goto err_rx; |
fb9987d0 | 757 | |
6f0f2669 | 758 | /* Register Read */ |
fb9987d0 | 759 | if (ath9k_hif_usb_alloc_reg_in_urb(hif_dev) < 0) |
f8036965 | 760 | goto err_reg; |
fb9987d0 S |
761 | |
762 | return 0; | |
f8036965 RM |
763 | err_reg: |
764 | ath9k_hif_usb_dealloc_rx_urbs(hif_dev); | |
765 | err_rx: | |
766 | ath9k_hif_usb_dealloc_tx_urbs(hif_dev); | |
fb9987d0 S |
767 | err: |
768 | return -ENOMEM; | |
769 | } | |
770 | ||
1d8af8ca SM |
771 | static void ath9k_hif_usb_dealloc_urbs(struct hif_device_usb *hif_dev) |
772 | { | |
773 | usb_kill_anchored_urbs(&hif_dev->regout_submitted); | |
774 | ath9k_hif_usb_dealloc_reg_in_urb(hif_dev); | |
775 | ath9k_hif_usb_dealloc_tx_urbs(hif_dev); | |
776 | ath9k_hif_usb_dealloc_rx_urbs(hif_dev); | |
777 | } | |
778 | ||
fb9987d0 S |
779 | static int ath9k_hif_usb_download_fw(struct hif_device_usb *hif_dev) |
780 | { | |
781 | int transfer, err; | |
782 | const void *data = hif_dev->firmware->data; | |
783 | size_t len = hif_dev->firmware->size; | |
784 | u32 addr = AR9271_FIRMWARE; | |
785 | u8 *buf = kzalloc(4096, GFP_KERNEL); | |
b1762862 | 786 | u32 firm_offset; |
fb9987d0 S |
787 | |
788 | if (!buf) | |
789 | return -ENOMEM; | |
790 | ||
791 | while (len) { | |
792 | transfer = min_t(int, len, 4096); | |
793 | memcpy(buf, data, transfer); | |
794 | ||
795 | err = usb_control_msg(hif_dev->udev, | |
796 | usb_sndctrlpipe(hif_dev->udev, 0), | |
797 | FIRMWARE_DOWNLOAD, 0x40 | USB_DIR_OUT, | |
798 | addr >> 8, 0, buf, transfer, HZ); | |
799 | if (err < 0) { | |
800 | kfree(buf); | |
801 | return err; | |
802 | } | |
803 | ||
804 | len -= transfer; | |
805 | data += transfer; | |
806 | addr += transfer; | |
807 | } | |
808 | kfree(buf); | |
809 | ||
d654567d RM |
810 | switch (hif_dev->device_id) { |
811 | case 0x7010: | |
812 | case 0x7015: | |
813 | case 0x9018: | |
7cbf2611 RM |
814 | case 0xA704: |
815 | case 0x1200: | |
b1762862 | 816 | firm_offset = AR7010_FIRMWARE_TEXT; |
d654567d RM |
817 | break; |
818 | default: | |
b1762862 | 819 | firm_offset = AR9271_FIRMWARE_TEXT; |
d654567d RM |
820 | break; |
821 | } | |
b1762862 | 822 | |
fb9987d0 S |
823 | /* |
824 | * Issue FW download complete command to firmware. | |
825 | */ | |
826 | err = usb_control_msg(hif_dev->udev, usb_sndctrlpipe(hif_dev->udev, 0), | |
827 | FIRMWARE_DOWNLOAD_COMP, | |
828 | 0x40 | USB_DIR_OUT, | |
b1762862 | 829 | firm_offset >> 8, 0, NULL, 0, HZ); |
fb9987d0 S |
830 | if (err) |
831 | return -EIO; | |
832 | ||
833 | dev_info(&hif_dev->udev->dev, "ath9k_htc: Transferred FW: %s, size: %ld\n", | |
ce43cee5 | 834 | hif_dev->fw_name, (unsigned long) hif_dev->firmware->size); |
fb9987d0 S |
835 | |
836 | return 0; | |
837 | } | |
838 | ||
ce43cee5 | 839 | static int ath9k_hif_usb_dev_init(struct hif_device_usb *hif_dev) |
fb9987d0 | 840 | { |
4a0e8ecc RM |
841 | int ret, idx; |
842 | struct usb_host_interface *alt = &hif_dev->interface->altsetting[0]; | |
843 | struct usb_endpoint_descriptor *endp; | |
fb9987d0 S |
844 | |
845 | /* Request firmware */ | |
ce43cee5 S |
846 | ret = request_firmware(&hif_dev->firmware, hif_dev->fw_name, |
847 | &hif_dev->udev->dev); | |
fb9987d0 S |
848 | if (ret) { |
849 | dev_err(&hif_dev->udev->dev, | |
ce43cee5 | 850 | "ath9k_htc: Firmware - %s not found\n", hif_dev->fw_name); |
fb9987d0 S |
851 | goto err_fw_req; |
852 | } | |
853 | ||
1d8af8ca SM |
854 | /* Download firmware */ |
855 | ret = ath9k_hif_usb_download_fw(hif_dev); | |
856 | if (ret) { | |
857 | dev_err(&hif_dev->udev->dev, | |
ce43cee5 S |
858 | "ath9k_htc: Firmware - %s download failed\n", |
859 | hif_dev->fw_name); | |
1d8af8ca SM |
860 | goto err_fw_download; |
861 | } | |
862 | ||
4a0e8ecc RM |
863 | /* On downloading the firmware to the target, the USB descriptor of EP4 |
864 | * is 'patched' to change the type of the endpoint to Bulk. This will | |
865 | * bring down CPU usage during the scan period. | |
866 | */ | |
867 | for (idx = 0; idx < alt->desc.bNumEndpoints; idx++) { | |
868 | endp = &alt->endpoint[idx].desc; | |
490b3f4e RM |
869 | if ((endp->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) |
870 | == USB_ENDPOINT_XFER_INT) { | |
4a0e8ecc RM |
871 | endp->bmAttributes &= ~USB_ENDPOINT_XFERTYPE_MASK; |
872 | endp->bmAttributes |= USB_ENDPOINT_XFER_BULK; | |
873 | endp->bInterval = 0; | |
874 | } | |
875 | } | |
876 | ||
490b3f4e RM |
877 | /* Alloc URBs */ |
878 | ret = ath9k_hif_usb_alloc_urbs(hif_dev); | |
879 | if (ret) { | |
880 | dev_err(&hif_dev->udev->dev, | |
881 | "ath9k_htc: Unable to allocate URBs\n"); | |
882 | goto err_urb; | |
883 | } | |
884 | ||
fb9987d0 S |
885 | return 0; |
886 | ||
fb9987d0 | 887 | err_fw_download: |
1d8af8ca SM |
888 | ath9k_hif_usb_dealloc_urbs(hif_dev); |
889 | err_urb: | |
fb9987d0 S |
890 | release_firmware(hif_dev->firmware); |
891 | err_fw_req: | |
892 | hif_dev->firmware = NULL; | |
893 | return ret; | |
894 | } | |
895 | ||
fb9987d0 S |
896 | static void ath9k_hif_usb_dev_deinit(struct hif_device_usb *hif_dev) |
897 | { | |
898 | ath9k_hif_usb_dealloc_urbs(hif_dev); | |
899 | if (hif_dev->firmware) | |
900 | release_firmware(hif_dev->firmware); | |
901 | } | |
902 | ||
903 | static int ath9k_hif_usb_probe(struct usb_interface *interface, | |
904 | const struct usb_device_id *id) | |
905 | { | |
906 | struct usb_device *udev = interface_to_usbdev(interface); | |
907 | struct hif_device_usb *hif_dev; | |
fb9987d0 S |
908 | int ret = 0; |
909 | ||
910 | hif_dev = kzalloc(sizeof(struct hif_device_usb), GFP_KERNEL); | |
911 | if (!hif_dev) { | |
912 | ret = -ENOMEM; | |
913 | goto err_alloc; | |
914 | } | |
915 | ||
916 | usb_get_dev(udev); | |
917 | hif_dev->udev = udev; | |
918 | hif_dev->interface = interface; | |
919 | hif_dev->device_id = id->idProduct; | |
920 | #ifdef CONFIG_PM | |
921 | udev->reset_resume = 1; | |
922 | #endif | |
923 | usb_set_intfdata(interface, hif_dev); | |
924 | ||
47fce026 SM |
925 | hif_dev->htc_handle = ath9k_htc_hw_alloc(hif_dev, &hif_usb, |
926 | &hif_dev->udev->dev); | |
927 | if (hif_dev->htc_handle == NULL) { | |
928 | ret = -ENOMEM; | |
929 | goto err_htc_hw_alloc; | |
930 | } | |
931 | ||
ce43cee5 S |
932 | /* Find out which firmware to load */ |
933 | ||
934 | switch(hif_dev->device_id) { | |
b1762862 | 935 | case 0x7010: |
ca6cff1f | 936 | case 0x7015: |
4e63f768 | 937 | case 0x9018: |
7cbf2611 RM |
938 | case 0xA704: |
939 | case 0x1200: | |
b1762862 | 940 | if (le16_to_cpu(udev->descriptor.bcdDevice) == 0x0202) |
d0ee0ebe | 941 | hif_dev->fw_name = FIRMWARE_AR7010_1_1; |
b1762862 | 942 | else |
d0ee0ebe | 943 | hif_dev->fw_name = FIRMWARE_AR7010; |
b1762862 | 944 | break; |
ce43cee5 | 945 | default: |
d0ee0ebe | 946 | hif_dev->fw_name = FIRMWARE_AR9271; |
ce43cee5 S |
947 | break; |
948 | } | |
949 | ||
ce43cee5 | 950 | ret = ath9k_hif_usb_dev_init(hif_dev); |
fb9987d0 S |
951 | if (ret) { |
952 | ret = -EINVAL; | |
953 | goto err_hif_init_usb; | |
954 | } | |
955 | ||
47fce026 | 956 | ret = ath9k_htc_hw_init(hif_dev->htc_handle, |
21cb9879 VN |
957 | &hif_dev->udev->dev, hif_dev->device_id, |
958 | hif_dev->udev->product); | |
fb9987d0 S |
959 | if (ret) { |
960 | ret = -EINVAL; | |
961 | goto err_htc_hw_init; | |
962 | } | |
963 | ||
964 | dev_info(&hif_dev->udev->dev, "ath9k_htc: USB layer initialized\n"); | |
965 | ||
966 | return 0; | |
967 | ||
968 | err_htc_hw_init: | |
fb9987d0 S |
969 | ath9k_hif_usb_dev_deinit(hif_dev); |
970 | err_hif_init_usb: | |
47fce026 SM |
971 | ath9k_htc_hw_free(hif_dev->htc_handle); |
972 | err_htc_hw_alloc: | |
fb9987d0 S |
973 | usb_set_intfdata(interface, NULL); |
974 | kfree(hif_dev); | |
975 | usb_put_dev(udev); | |
976 | err_alloc: | |
977 | return ret; | |
978 | } | |
979 | ||
62e4716a S |
980 | static void ath9k_hif_usb_reboot(struct usb_device *udev) |
981 | { | |
982 | u32 reboot_cmd = 0xffffffff; | |
983 | void *buf; | |
984 | int ret; | |
985 | ||
a465a2cc | 986 | buf = kmemdup(&reboot_cmd, 4, GFP_KERNEL); |
62e4716a S |
987 | if (!buf) |
988 | return; | |
989 | ||
62e4716a S |
990 | ret = usb_bulk_msg(udev, usb_sndbulkpipe(udev, USB_REG_OUT_PIPE), |
991 | buf, 4, NULL, HZ); | |
992 | if (ret) | |
993 | dev_err(&udev->dev, "ath9k_htc: USB reboot failed\n"); | |
994 | ||
995 | kfree(buf); | |
996 | } | |
997 | ||
fb9987d0 S |
998 | static void ath9k_hif_usb_disconnect(struct usb_interface *interface) |
999 | { | |
1000 | struct usb_device *udev = interface_to_usbdev(interface); | |
1001 | struct hif_device_usb *hif_dev = | |
1002 | (struct hif_device_usb *) usb_get_intfdata(interface); | |
1003 | ||
1004 | if (hif_dev) { | |
d8f996f6 S |
1005 | ath9k_htc_hw_deinit(hif_dev->htc_handle, |
1006 | (udev->state == USB_STATE_NOTATTACHED) ? true : false); | |
fb9987d0 S |
1007 | ath9k_htc_hw_free(hif_dev->htc_handle); |
1008 | ath9k_hif_usb_dev_deinit(hif_dev); | |
1009 | usb_set_intfdata(interface, NULL); | |
1010 | } | |
1011 | ||
1012 | if (hif_dev->flags & HIF_USB_START) | |
62e4716a | 1013 | ath9k_hif_usb_reboot(udev); |
fb9987d0 S |
1014 | |
1015 | kfree(hif_dev); | |
1016 | dev_info(&udev->dev, "ath9k_htc: USB layer deinitialized\n"); | |
1017 | usb_put_dev(udev); | |
1018 | } | |
1019 | ||
1020 | #ifdef CONFIG_PM | |
1021 | static int ath9k_hif_usb_suspend(struct usb_interface *interface, | |
1022 | pm_message_t message) | |
1023 | { | |
1024 | struct hif_device_usb *hif_dev = | |
1025 | (struct hif_device_usb *) usb_get_intfdata(interface); | |
1026 | ||
1027 | ath9k_hif_usb_dealloc_urbs(hif_dev); | |
1028 | ||
1029 | return 0; | |
1030 | } | |
1031 | ||
1032 | static int ath9k_hif_usb_resume(struct usb_interface *interface) | |
1033 | { | |
1034 | struct hif_device_usb *hif_dev = | |
1035 | (struct hif_device_usb *) usb_get_intfdata(interface); | |
1036 | int ret; | |
1037 | ||
1038 | ret = ath9k_hif_usb_alloc_urbs(hif_dev); | |
1039 | if (ret) | |
1040 | return ret; | |
1041 | ||
1042 | if (hif_dev->firmware) { | |
1043 | ret = ath9k_hif_usb_download_fw(hif_dev); | |
1044 | if (ret) | |
1045 | goto fail_resume; | |
1046 | } else { | |
1047 | ath9k_hif_usb_dealloc_urbs(hif_dev); | |
1048 | return -EIO; | |
1049 | } | |
1050 | ||
1051 | mdelay(100); | |
1052 | ||
1053 | ret = ath9k_htc_resume(hif_dev->htc_handle); | |
1054 | ||
1055 | if (ret) | |
1056 | goto fail_resume; | |
1057 | ||
1058 | return 0; | |
1059 | ||
1060 | fail_resume: | |
1061 | ath9k_hif_usb_dealloc_urbs(hif_dev); | |
1062 | ||
1063 | return ret; | |
1064 | } | |
1065 | #endif | |
1066 | ||
1067 | static struct usb_driver ath9k_hif_usb_driver = { | |
1068 | .name = "ath9k_hif_usb", | |
1069 | .probe = ath9k_hif_usb_probe, | |
1070 | .disconnect = ath9k_hif_usb_disconnect, | |
1071 | #ifdef CONFIG_PM | |
1072 | .suspend = ath9k_hif_usb_suspend, | |
1073 | .resume = ath9k_hif_usb_resume, | |
1074 | .reset_resume = ath9k_hif_usb_resume, | |
1075 | #endif | |
1076 | .id_table = ath9k_hif_usb_ids, | |
1077 | .soft_unbind = 1, | |
1078 | }; | |
1079 | ||
1080 | int ath9k_hif_usb_init(void) | |
1081 | { | |
1082 | return usb_register(&ath9k_hif_usb_driver); | |
1083 | } | |
1084 | ||
1085 | void ath9k_hif_usb_exit(void) | |
1086 | { | |
1087 | usb_deregister(&ath9k_hif_usb_driver); | |
1088 | } |