Commit | Line | Data |
---|---|---|
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 | 19 | /* identify firmware images */ |
ce18f391 SM |
20 | #define FIRMWARE_AR7010_1_1 "htc_7010.fw" |
21 | #define FIRMWARE_AR9271 "htc_9271.fw" | |
d0ee0ebe | 22 | |
d0ee0ebe JL |
23 | MODULE_FIRMWARE(FIRMWARE_AR7010_1_1); |
24 | MODULE_FIRMWARE(FIRMWARE_AR9271); | |
25 | ||
fb9987d0 | 26 | static struct usb_device_id ath9k_hif_usb_ids[] = { |
4e63f768 S |
27 | { USB_DEVICE(0x0cf3, 0x9271) }, /* Atheros */ |
28 | { USB_DEVICE(0x0cf3, 0x1006) }, /* Atheros */ | |
4e63f768 | 29 | { USB_DEVICE(0x0846, 0x9030) }, /* Netgear N150 */ |
4e63f768 S |
30 | { USB_DEVICE(0x07D1, 0x3A10) }, /* Dlink Wireless 150 */ |
31 | { USB_DEVICE(0x13D3, 0x3327) }, /* Azurewave */ | |
32 | { USB_DEVICE(0x13D3, 0x3328) }, /* Azurewave */ | |
ac618d70 | 33 | { USB_DEVICE(0x13D3, 0x3346) }, /* IMC Networks */ |
32b08955 RM |
34 | { USB_DEVICE(0x13D3, 0x3348) }, /* Azurewave */ |
35 | { USB_DEVICE(0x13D3, 0x3349) }, /* Azurewave */ | |
36 | { USB_DEVICE(0x13D3, 0x3350) }, /* Azurewave */ | |
4e63f768 | 37 | { USB_DEVICE(0x04CA, 0x4605) }, /* Liteon */ |
32b08955 | 38 | { USB_DEVICE(0x040D, 0x3801) }, /* VIA */ |
452d7dd8 | 39 | { USB_DEVICE(0x0cf3, 0xb003) }, /* Ubiquiti WifiStation Ext */ |
0b5ead91 SM |
40 | |
41 | { USB_DEVICE(0x0cf3, 0x7015), | |
42 | .driver_info = AR9287_USB }, /* Atheros */ | |
64f12170 | 43 | { USB_DEVICE(0x1668, 0x1200), |
0b5ead91 SM |
44 | .driver_info = AR9287_USB }, /* Verizon */ |
45 | ||
46 | { USB_DEVICE(0x0cf3, 0x7010), | |
47 | .driver_info = AR9280_USB }, /* Atheros */ | |
48 | { USB_DEVICE(0x0846, 0x9018), | |
49 | .driver_info = AR9280_USB }, /* Netgear WNDA3200 */ | |
50 | { USB_DEVICE(0x083A, 0xA704), | |
51 | .driver_info = AR9280_USB }, /* SMC Networks */ | |
52 | ||
36bcce43 SM |
53 | { USB_DEVICE(0x0cf3, 0x20ff), |
54 | .driver_info = STORAGE_DEVICE }, | |
55 | ||
fb9987d0 S |
56 | { }, |
57 | }; | |
58 | ||
59 | MODULE_DEVICE_TABLE(usb, ath9k_hif_usb_ids); | |
60 | ||
61 | static int __hif_usb_tx(struct hif_device_usb *hif_dev); | |
62 | ||
63 | static void hif_usb_regout_cb(struct urb *urb) | |
64 | { | |
65 | struct cmd_buf *cmd = (struct cmd_buf *)urb->context; | |
fb9987d0 S |
66 | |
67 | switch (urb->status) { | |
68 | case 0: | |
69 | break; | |
70 | case -ENOENT: | |
71 | case -ECONNRESET: | |
fb9987d0 S |
72 | case -ENODEV: |
73 | case -ESHUTDOWN: | |
6f0f2669 | 74 | goto free; |
fb9987d0 S |
75 | default: |
76 | break; | |
77 | } | |
78 | ||
79 | if (cmd) { | |
80 | ath9k_htc_txcompletion_cb(cmd->hif_dev->htc_handle, | |
2f80194c | 81 | cmd->skb, true); |
fb9987d0 | 82 | kfree(cmd); |
fb9987d0 | 83 | } |
6f0f2669 S |
84 | |
85 | return; | |
86 | free: | |
0fa35a58 | 87 | kfree_skb(cmd->skb); |
6f0f2669 | 88 | kfree(cmd); |
fb9987d0 S |
89 | } |
90 | ||
91 | static int hif_usb_send_regout(struct hif_device_usb *hif_dev, | |
92 | struct sk_buff *skb) | |
93 | { | |
94 | struct urb *urb; | |
95 | struct cmd_buf *cmd; | |
96 | int ret = 0; | |
97 | ||
98 | urb = usb_alloc_urb(0, GFP_KERNEL); | |
99 | if (urb == NULL) | |
100 | return -ENOMEM; | |
101 | ||
102 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
103 | if (cmd == NULL) { | |
104 | usb_free_urb(urb); | |
105 | return -ENOMEM; | |
106 | } | |
107 | ||
108 | cmd->skb = skb; | |
109 | cmd->hif_dev = hif_dev; | |
110 | ||
4a0e8ecc RM |
111 | usb_fill_bulk_urb(urb, hif_dev->udev, |
112 | usb_sndbulkpipe(hif_dev->udev, USB_REG_OUT_PIPE), | |
fb9987d0 | 113 | skb->data, skb->len, |
4a0e8ecc | 114 | hif_usb_regout_cb, cmd); |
fb9987d0 | 115 | |
6f0f2669 | 116 | usb_anchor_urb(urb, &hif_dev->regout_submitted); |
fb9987d0 S |
117 | ret = usb_submit_urb(urb, GFP_KERNEL); |
118 | if (ret) { | |
6f0f2669 | 119 | usb_unanchor_urb(urb); |
fb9987d0 S |
120 | kfree(cmd); |
121 | } | |
6f0f2669 | 122 | usb_free_urb(urb); |
fb9987d0 S |
123 | |
124 | return ret; | |
125 | } | |
126 | ||
2f80194c SM |
127 | static void hif_usb_mgmt_cb(struct urb *urb) |
128 | { | |
129 | struct cmd_buf *cmd = (struct cmd_buf *)urb->context; | |
130 | struct hif_device_usb *hif_dev = cmd->hif_dev; | |
131 | bool txok = true; | |
132 | ||
133 | if (!cmd || !cmd->skb || !cmd->hif_dev) | |
134 | return; | |
135 | ||
136 | switch (urb->status) { | |
137 | case 0: | |
138 | break; | |
139 | case -ENOENT: | |
140 | case -ECONNRESET: | |
141 | case -ENODEV: | |
142 | case -ESHUTDOWN: | |
143 | txok = false; | |
144 | ||
145 | /* | |
146 | * If the URBs are being flushed, no need to complete | |
147 | * this packet. | |
148 | */ | |
149 | spin_lock(&hif_dev->tx.tx_lock); | |
150 | if (hif_dev->tx.flags & HIF_USB_TX_FLUSH) { | |
151 | spin_unlock(&hif_dev->tx.tx_lock); | |
152 | dev_kfree_skb_any(cmd->skb); | |
153 | kfree(cmd); | |
154 | return; | |
155 | } | |
156 | spin_unlock(&hif_dev->tx.tx_lock); | |
157 | ||
158 | break; | |
159 | default: | |
160 | txok = false; | |
161 | break; | |
162 | } | |
163 | ||
164 | skb_pull(cmd->skb, 4); | |
165 | ath9k_htc_txcompletion_cb(cmd->hif_dev->htc_handle, | |
166 | cmd->skb, txok); | |
167 | kfree(cmd); | |
168 | } | |
169 | ||
170 | static int hif_usb_send_mgmt(struct hif_device_usb *hif_dev, | |
171 | struct sk_buff *skb) | |
172 | { | |
173 | struct urb *urb; | |
174 | struct cmd_buf *cmd; | |
175 | int ret = 0; | |
176 | __le16 *hdr; | |
177 | ||
178 | urb = usb_alloc_urb(0, GFP_ATOMIC); | |
179 | if (urb == NULL) | |
180 | return -ENOMEM; | |
181 | ||
182 | cmd = kzalloc(sizeof(*cmd), GFP_ATOMIC); | |
183 | if (cmd == NULL) { | |
184 | usb_free_urb(urb); | |
185 | return -ENOMEM; | |
186 | } | |
187 | ||
188 | cmd->skb = skb; | |
189 | cmd->hif_dev = hif_dev; | |
190 | ||
191 | hdr = (__le16 *) skb_push(skb, 4); | |
192 | *hdr++ = cpu_to_le16(skb->len - 4); | |
193 | *hdr++ = cpu_to_le16(ATH_USB_TX_STREAM_MODE_TAG); | |
194 | ||
195 | usb_fill_bulk_urb(urb, hif_dev->udev, | |
196 | usb_sndbulkpipe(hif_dev->udev, USB_WLAN_TX_PIPE), | |
197 | skb->data, skb->len, | |
198 | hif_usb_mgmt_cb, cmd); | |
199 | ||
200 | usb_anchor_urb(urb, &hif_dev->mgmt_submitted); | |
201 | ret = usb_submit_urb(urb, GFP_ATOMIC); | |
202 | if (ret) { | |
203 | usb_unanchor_urb(urb); | |
204 | kfree(cmd); | |
205 | } | |
206 | usb_free_urb(urb); | |
207 | ||
208 | return ret; | |
209 | } | |
210 | ||
c11d8f89 S |
211 | static inline void ath9k_skb_queue_purge(struct hif_device_usb *hif_dev, |
212 | struct sk_buff_head *list) | |
213 | { | |
214 | struct sk_buff *skb; | |
215 | ||
216 | while ((skb = __skb_dequeue(list)) != NULL) { | |
217 | dev_kfree_skb_any(skb); | |
b587fc81 SM |
218 | } |
219 | } | |
220 | ||
221 | static inline void ath9k_skb_queue_complete(struct hif_device_usb *hif_dev, | |
222 | struct sk_buff_head *queue, | |
223 | bool txok) | |
224 | { | |
225 | struct sk_buff *skb; | |
226 | ||
227 | while ((skb = __skb_dequeue(queue)) != NULL) { | |
228 | ath9k_htc_txcompletion_cb(hif_dev->htc_handle, | |
229 | skb, txok); | |
dfa8fc69 JL |
230 | if (txok) |
231 | TX_STAT_INC(skb_success); | |
232 | else | |
233 | TX_STAT_INC(skb_failed); | |
c11d8f89 S |
234 | } |
235 | } | |
236 | ||
fb9987d0 S |
237 | static void hif_usb_tx_cb(struct urb *urb) |
238 | { | |
239 | struct tx_buf *tx_buf = (struct tx_buf *) urb->context; | |
690e781c | 240 | struct hif_device_usb *hif_dev; |
b587fc81 | 241 | bool txok = true; |
fb9987d0 | 242 | |
690e781c | 243 | if (!tx_buf || !tx_buf->hif_dev) |
fb9987d0 S |
244 | return; |
245 | ||
690e781c DC |
246 | hif_dev = tx_buf->hif_dev; |
247 | ||
fb9987d0 S |
248 | switch (urb->status) { |
249 | case 0: | |
250 | break; | |
251 | case -ENOENT: | |
252 | case -ECONNRESET: | |
fb9987d0 S |
253 | case -ENODEV: |
254 | case -ESHUTDOWN: | |
b587fc81 | 255 | txok = false; |
ff8f59b5 SM |
256 | |
257 | /* | |
258 | * If the URBs are being flushed, no need to add this | |
259 | * URB to the free list. | |
260 | */ | |
261 | spin_lock(&hif_dev->tx.tx_lock); | |
262 | if (hif_dev->tx.flags & HIF_USB_TX_FLUSH) { | |
263 | spin_unlock(&hif_dev->tx.tx_lock); | |
b587fc81 | 264 | ath9k_skb_queue_purge(hif_dev, &tx_buf->skb_queue); |
ff8f59b5 SM |
265 | return; |
266 | } | |
267 | spin_unlock(&hif_dev->tx.tx_lock); | |
268 | ||
b587fc81 | 269 | break; |
fb9987d0 | 270 | default: |
b587fc81 | 271 | txok = false; |
fb9987d0 S |
272 | break; |
273 | } | |
274 | ||
b587fc81 | 275 | ath9k_skb_queue_complete(hif_dev, &tx_buf->skb_queue, txok); |
c11d8f89 | 276 | |
c11d8f89 S |
277 | /* Re-initialize the SKB queue */ |
278 | tx_buf->len = tx_buf->offset = 0; | |
279 | __skb_queue_head_init(&tx_buf->skb_queue); | |
280 | ||
281 | /* Add this TX buffer to the free list */ | |
282 | spin_lock(&hif_dev->tx.tx_lock); | |
283 | list_move_tail(&tx_buf->list, &hif_dev->tx.tx_buf); | |
284 | hif_dev->tx.tx_buf_cnt++; | |
285 | if (!(hif_dev->tx.flags & HIF_USB_TX_STOP)) | |
286 | __hif_usb_tx(hif_dev); /* Check for pending SKBs */ | |
287 | TX_STAT_INC(buf_completed); | |
288 | spin_unlock(&hif_dev->tx.tx_lock); | |
f8e1d080 ML |
289 | } |
290 | ||
fb9987d0 S |
291 | /* TX lock has to be taken */ |
292 | static int __hif_usb_tx(struct hif_device_usb *hif_dev) | |
293 | { | |
294 | struct tx_buf *tx_buf = NULL; | |
295 | struct sk_buff *nskb = NULL; | |
296 | int ret = 0, i; | |
2c27392d | 297 | u16 tx_skb_cnt = 0; |
fb9987d0 | 298 | u8 *buf; |
2c27392d | 299 | __le16 *hdr; |
fb9987d0 S |
300 | |
301 | if (hif_dev->tx.tx_skb_cnt == 0) | |
302 | return 0; | |
303 | ||
304 | /* Check if a free TX buffer is available */ | |
305 | if (list_empty(&hif_dev->tx.tx_buf)) | |
306 | return 0; | |
307 | ||
308 | tx_buf = list_first_entry(&hif_dev->tx.tx_buf, struct tx_buf, list); | |
c11d8f89 | 309 | list_move_tail(&tx_buf->list, &hif_dev->tx.tx_pending); |
fb9987d0 S |
310 | hif_dev->tx.tx_buf_cnt--; |
311 | ||
312 | tx_skb_cnt = min_t(u16, hif_dev->tx.tx_skb_cnt, MAX_TX_AGGR_NUM); | |
313 | ||
314 | for (i = 0; i < tx_skb_cnt; i++) { | |
315 | nskb = __skb_dequeue(&hif_dev->tx.tx_skb_queue); | |
316 | ||
317 | /* Should never be NULL */ | |
318 | BUG_ON(!nskb); | |
319 | ||
320 | hif_dev->tx.tx_skb_cnt--; | |
321 | ||
322 | buf = tx_buf->buf; | |
323 | buf += tx_buf->offset; | |
2c27392d SM |
324 | hdr = (__le16 *)buf; |
325 | *hdr++ = cpu_to_le16(nskb->len); | |
326 | *hdr++ = cpu_to_le16(ATH_USB_TX_STREAM_MODE_TAG); | |
fb9987d0 S |
327 | buf += 4; |
328 | memcpy(buf, nskb->data, nskb->len); | |
329 | tx_buf->len = nskb->len + 4; | |
330 | ||
331 | if (i < (tx_skb_cnt - 1)) | |
332 | tx_buf->offset += (((tx_buf->len - 1) / 4) + 1) * 4; | |
333 | ||
334 | if (i == (tx_skb_cnt - 1)) | |
335 | tx_buf->len += tx_buf->offset; | |
336 | ||
337 | __skb_queue_tail(&tx_buf->skb_queue, nskb); | |
338 | TX_STAT_INC(skb_queued); | |
339 | } | |
340 | ||
341 | usb_fill_bulk_urb(tx_buf->urb, hif_dev->udev, | |
342 | usb_sndbulkpipe(hif_dev->udev, USB_WLAN_TX_PIPE), | |
343 | tx_buf->buf, tx_buf->len, | |
344 | hif_usb_tx_cb, tx_buf); | |
345 | ||
346 | ret = usb_submit_urb(tx_buf->urb, GFP_ATOMIC); | |
347 | if (ret) { | |
348 | tx_buf->len = tx_buf->offset = 0; | |
b587fc81 | 349 | ath9k_skb_queue_complete(hif_dev, &tx_buf->skb_queue, false); |
fb9987d0 S |
350 | __skb_queue_head_init(&tx_buf->skb_queue); |
351 | list_move_tail(&tx_buf->list, &hif_dev->tx.tx_buf); | |
352 | hif_dev->tx.tx_buf_cnt++; | |
353 | } | |
354 | ||
355 | if (!ret) | |
356 | TX_STAT_INC(buf_queued); | |
357 | ||
358 | return ret; | |
359 | } | |
360 | ||
40dc9e4b | 361 | static int hif_usb_send_tx(struct hif_device_usb *hif_dev, struct sk_buff *skb) |
fb9987d0 | 362 | { |
40dc9e4b | 363 | struct ath9k_htc_tx_ctl *tx_ctl; |
fb9987d0 | 364 | unsigned long flags; |
2f80194c | 365 | int ret = 0; |
fb9987d0 S |
366 | |
367 | spin_lock_irqsave(&hif_dev->tx.tx_lock, flags); | |
368 | ||
369 | if (hif_dev->tx.flags & HIF_USB_TX_STOP) { | |
370 | spin_unlock_irqrestore(&hif_dev->tx.tx_lock, flags); | |
371 | return -ENODEV; | |
372 | } | |
373 | ||
374 | /* Check if the max queue count has been reached */ | |
375 | if (hif_dev->tx.tx_skb_cnt > MAX_TX_BUF_NUM) { | |
376 | spin_unlock_irqrestore(&hif_dev->tx.tx_lock, flags); | |
377 | return -ENOMEM; | |
378 | } | |
379 | ||
2f80194c | 380 | spin_unlock_irqrestore(&hif_dev->tx.tx_lock, flags); |
fb9987d0 | 381 | |
40dc9e4b SM |
382 | tx_ctl = HTC_SKB_CB(skb); |
383 | ||
2f80194c SM |
384 | /* Mgmt/Beacon frames don't use the TX buffer pool */ |
385 | if ((tx_ctl->type == ATH9K_HTC_MGMT) || | |
386 | (tx_ctl->type == ATH9K_HTC_BEACON)) { | |
387 | ret = hif_usb_send_mgmt(hif_dev, skb); | |
388 | } | |
389 | ||
390 | spin_lock_irqsave(&hif_dev->tx.tx_lock, flags); | |
391 | ||
392 | if ((tx_ctl->type == ATH9K_HTC_NORMAL) || | |
393 | (tx_ctl->type == ATH9K_HTC_AMPDU)) { | |
394 | __skb_queue_tail(&hif_dev->tx.tx_skb_queue, skb); | |
395 | hif_dev->tx.tx_skb_cnt++; | |
396 | } | |
fb9987d0 S |
397 | |
398 | /* Check if AMPDUs have to be sent immediately */ | |
2f80194c | 399 | if ((hif_dev->tx.tx_buf_cnt == MAX_TX_URB_NUM) && |
fb9987d0 S |
400 | (hif_dev->tx.tx_skb_cnt < 2)) { |
401 | __hif_usb_tx(hif_dev); | |
402 | } | |
403 | ||
404 | spin_unlock_irqrestore(&hif_dev->tx.tx_lock, flags); | |
405 | ||
2f80194c | 406 | return ret; |
fb9987d0 S |
407 | } |
408 | ||
e1fe7c38 | 409 | static void hif_usb_start(void *hif_handle) |
fb9987d0 S |
410 | { |
411 | struct hif_device_usb *hif_dev = (struct hif_device_usb *)hif_handle; | |
412 | unsigned long flags; | |
413 | ||
414 | hif_dev->flags |= HIF_USB_START; | |
415 | ||
416 | spin_lock_irqsave(&hif_dev->tx.tx_lock, flags); | |
417 | hif_dev->tx.flags &= ~HIF_USB_TX_STOP; | |
418 | spin_unlock_irqrestore(&hif_dev->tx.tx_lock, flags); | |
419 | } | |
420 | ||
e1fe7c38 | 421 | static void hif_usb_stop(void *hif_handle) |
fb9987d0 S |
422 | { |
423 | struct hif_device_usb *hif_dev = (struct hif_device_usb *)hif_handle; | |
ff8f59b5 | 424 | struct tx_buf *tx_buf = NULL, *tx_buf_tmp = NULL; |
fb9987d0 S |
425 | unsigned long flags; |
426 | ||
427 | spin_lock_irqsave(&hif_dev->tx.tx_lock, flags); | |
b587fc81 | 428 | ath9k_skb_queue_complete(hif_dev, &hif_dev->tx.tx_skb_queue, false); |
fb9987d0 S |
429 | hif_dev->tx.tx_skb_cnt = 0; |
430 | hif_dev->tx.flags |= HIF_USB_TX_STOP; | |
431 | spin_unlock_irqrestore(&hif_dev->tx.tx_lock, flags); | |
ff8f59b5 SM |
432 | |
433 | /* The pending URBs have to be canceled. */ | |
434 | list_for_each_entry_safe(tx_buf, tx_buf_tmp, | |
435 | &hif_dev->tx.tx_pending, list) { | |
436 | usb_kill_urb(tx_buf->urb); | |
437 | } | |
2f80194c SM |
438 | |
439 | usb_kill_anchored_urbs(&hif_dev->mgmt_submitted); | |
fb9987d0 S |
440 | } |
441 | ||
40dc9e4b | 442 | static int hif_usb_send(void *hif_handle, u8 pipe_id, struct sk_buff *skb) |
fb9987d0 S |
443 | { |
444 | struct hif_device_usb *hif_dev = (struct hif_device_usb *)hif_handle; | |
445 | int ret = 0; | |
446 | ||
447 | switch (pipe_id) { | |
448 | case USB_WLAN_TX_PIPE: | |
40dc9e4b | 449 | ret = hif_usb_send_tx(hif_dev, skb); |
fb9987d0 S |
450 | break; |
451 | case USB_REG_OUT_PIPE: | |
452 | ret = hif_usb_send_regout(hif_dev, skb); | |
453 | break; | |
454 | default: | |
6335ed0f S |
455 | dev_err(&hif_dev->udev->dev, |
456 | "ath9k_htc: Invalid TX pipe: %d\n", pipe_id); | |
fb9987d0 S |
457 | ret = -EINVAL; |
458 | break; | |
459 | } | |
460 | ||
461 | return ret; | |
462 | } | |
463 | ||
84c9e164 SM |
464 | static inline bool check_index(struct sk_buff *skb, u8 idx) |
465 | { | |
466 | struct ath9k_htc_tx_ctl *tx_ctl; | |
467 | ||
468 | tx_ctl = HTC_SKB_CB(skb); | |
469 | ||
470 | if ((tx_ctl->type == ATH9K_HTC_AMPDU) && | |
471 | (tx_ctl->sta_idx == idx)) | |
472 | return true; | |
473 | ||
474 | return false; | |
475 | } | |
476 | ||
477 | static void hif_usb_sta_drain(void *hif_handle, u8 idx) | |
478 | { | |
479 | struct hif_device_usb *hif_dev = (struct hif_device_usb *)hif_handle; | |
480 | struct sk_buff *skb, *tmp; | |
481 | unsigned long flags; | |
482 | ||
483 | spin_lock_irqsave(&hif_dev->tx.tx_lock, flags); | |
484 | ||
485 | skb_queue_walk_safe(&hif_dev->tx.tx_skb_queue, skb, tmp) { | |
486 | if (check_index(skb, idx)) { | |
487 | __skb_unlink(skb, &hif_dev->tx.tx_skb_queue); | |
488 | ath9k_htc_txcompletion_cb(hif_dev->htc_handle, | |
489 | skb, false); | |
490 | hif_dev->tx.tx_skb_cnt--; | |
491 | TX_STAT_INC(skb_failed); | |
492 | } | |
493 | } | |
494 | ||
495 | spin_unlock_irqrestore(&hif_dev->tx.tx_lock, flags); | |
496 | } | |
497 | ||
fb9987d0 S |
498 | static struct ath9k_htc_hif hif_usb = { |
499 | .transport = ATH9K_HIF_USB, | |
500 | .name = "ath9k_hif_usb", | |
501 | ||
502 | .control_ul_pipe = USB_REG_OUT_PIPE, | |
503 | .control_dl_pipe = USB_REG_IN_PIPE, | |
504 | ||
505 | .start = hif_usb_start, | |
506 | .stop = hif_usb_stop, | |
84c9e164 | 507 | .sta_drain = hif_usb_sta_drain, |
fb9987d0 S |
508 | .send = hif_usb_send, |
509 | }; | |
510 | ||
511 | static void ath9k_hif_usb_rx_stream(struct hif_device_usb *hif_dev, | |
512 | struct sk_buff *skb) | |
513 | { | |
c503269a | 514 | struct sk_buff *nskb, *skb_pool[MAX_PKT_NUM_IN_TRANSFER]; |
44b23b48 JP |
515 | int index = 0, i = 0, len = skb->len; |
516 | int rx_remain_len, rx_pkt_len; | |
517 | u16 pool_index = 0; | |
fb9987d0 S |
518 | u8 *ptr; |
519 | ||
46baa1a2 S |
520 | spin_lock(&hif_dev->rx_lock); |
521 | ||
fb9987d0 S |
522 | rx_remain_len = hif_dev->rx_remain_len; |
523 | rx_pkt_len = hif_dev->rx_transfer_len; | |
524 | ||
525 | if (rx_remain_len != 0) { | |
526 | struct sk_buff *remain_skb = hif_dev->remain_skb; | |
527 | ||
528 | if (remain_skb) { | |
529 | ptr = (u8 *) remain_skb->data; | |
530 | ||
531 | index = rx_remain_len; | |
532 | rx_remain_len -= hif_dev->rx_pad_len; | |
533 | ptr += rx_pkt_len; | |
534 | ||
535 | memcpy(ptr, skb->data, rx_remain_len); | |
536 | ||
537 | rx_pkt_len += rx_remain_len; | |
538 | hif_dev->rx_remain_len = 0; | |
539 | skb_put(remain_skb, rx_pkt_len); | |
540 | ||
541 | skb_pool[pool_index++] = remain_skb; | |
542 | ||
543 | } else { | |
544 | index = rx_remain_len; | |
545 | } | |
546 | } | |
547 | ||
46baa1a2 S |
548 | spin_unlock(&hif_dev->rx_lock); |
549 | ||
fb9987d0 | 550 | while (index < len) { |
44b23b48 JP |
551 | u16 pkt_len; |
552 | u16 pkt_tag; | |
553 | u16 pad_len; | |
554 | int chk_idx; | |
555 | ||
fb9987d0 S |
556 | ptr = (u8 *) skb->data; |
557 | ||
558 | pkt_len = ptr[index] + (ptr[index+1] << 8); | |
559 | pkt_tag = ptr[index+2] + (ptr[index+3] << 8); | |
560 | ||
44b23b48 JP |
561 | if (pkt_tag != ATH_USB_RX_STREAM_MODE_TAG) { |
562 | RX_STAT_INC(skb_dropped); | |
563 | return; | |
564 | } | |
565 | ||
566 | pad_len = 4 - (pkt_len & 0x3); | |
567 | if (pad_len == 4) | |
568 | pad_len = 0; | |
569 | ||
570 | chk_idx = index; | |
571 | index = index + 4 + pkt_len + pad_len; | |
572 | ||
573 | if (index > MAX_RX_BUF_SIZE) { | |
574 | spin_lock(&hif_dev->rx_lock); | |
575 | hif_dev->rx_remain_len = index - MAX_RX_BUF_SIZE; | |
576 | hif_dev->rx_transfer_len = | |
577 | MAX_RX_BUF_SIZE - chk_idx - 4; | |
578 | hif_dev->rx_pad_len = pad_len; | |
579 | ||
580 | nskb = __dev_alloc_skb(pkt_len + 32, GFP_ATOMIC); | |
581 | if (!nskb) { | |
582 | dev_err(&hif_dev->udev->dev, | |
583 | "ath9k_htc: RX memory allocation error\n"); | |
46baa1a2 | 584 | spin_unlock(&hif_dev->rx_lock); |
44b23b48 | 585 | goto err; |
fb9987d0 | 586 | } |
44b23b48 JP |
587 | skb_reserve(nskb, 32); |
588 | RX_STAT_INC(skb_allocated); | |
589 | ||
590 | memcpy(nskb->data, &(skb->data[chk_idx+4]), | |
591 | hif_dev->rx_transfer_len); | |
592 | ||
593 | /* Record the buffer pointer */ | |
594 | hif_dev->remain_skb = nskb; | |
595 | spin_unlock(&hif_dev->rx_lock); | |
fb9987d0 | 596 | } else { |
44b23b48 JP |
597 | nskb = __dev_alloc_skb(pkt_len + 32, GFP_ATOMIC); |
598 | if (!nskb) { | |
599 | dev_err(&hif_dev->udev->dev, | |
600 | "ath9k_htc: RX memory allocation error\n"); | |
601 | goto err; | |
602 | } | |
603 | skb_reserve(nskb, 32); | |
604 | RX_STAT_INC(skb_allocated); | |
605 | ||
606 | memcpy(nskb->data, &(skb->data[chk_idx+4]), pkt_len); | |
607 | skb_put(nskb, pkt_len); | |
608 | skb_pool[pool_index++] = nskb; | |
fb9987d0 S |
609 | } |
610 | } | |
611 | ||
612 | err: | |
fb9987d0 S |
613 | for (i = 0; i < pool_index; i++) { |
614 | ath9k_htc_rx_msg(hif_dev->htc_handle, skb_pool[i], | |
615 | skb_pool[i]->len, USB_WLAN_RX_PIPE); | |
616 | RX_STAT_INC(skb_completed); | |
617 | } | |
618 | } | |
619 | ||
620 | static void ath9k_hif_usb_rx_cb(struct urb *urb) | |
621 | { | |
622 | struct sk_buff *skb = (struct sk_buff *) urb->context; | |
b2767363 | 623 | struct hif_device_usb *hif_dev = |
fb9987d0 S |
624 | usb_get_intfdata(usb_ifnum_to_if(urb->dev, 0)); |
625 | int ret; | |
626 | ||
6335ed0f S |
627 | if (!skb) |
628 | return; | |
629 | ||
fb9987d0 S |
630 | if (!hif_dev) |
631 | goto free; | |
632 | ||
633 | switch (urb->status) { | |
634 | case 0: | |
635 | break; | |
636 | case -ENOENT: | |
637 | case -ECONNRESET: | |
638 | case -ENODEV: | |
639 | case -ESHUTDOWN: | |
640 | goto free; | |
641 | default: | |
642 | goto resubmit; | |
643 | } | |
644 | ||
645 | if (likely(urb->actual_length != 0)) { | |
646 | skb_put(skb, urb->actual_length); | |
fb9987d0 | 647 | ath9k_hif_usb_rx_stream(hif_dev, skb); |
fb9987d0 S |
648 | } |
649 | ||
650 | resubmit: | |
651 | skb_reset_tail_pointer(skb); | |
652 | skb_trim(skb, 0); | |
653 | ||
6335ed0f | 654 | usb_anchor_urb(urb, &hif_dev->rx_submitted); |
fb9987d0 | 655 | ret = usb_submit_urb(urb, GFP_ATOMIC); |
6335ed0f S |
656 | if (ret) { |
657 | usb_unanchor_urb(urb); | |
fb9987d0 | 658 | goto free; |
6335ed0f | 659 | } |
fb9987d0 S |
660 | |
661 | return; | |
662 | free: | |
f28a7b30 | 663 | kfree_skb(skb); |
fb9987d0 S |
664 | } |
665 | ||
666 | static void ath9k_hif_usb_reg_in_cb(struct urb *urb) | |
667 | { | |
668 | struct sk_buff *skb = (struct sk_buff *) urb->context; | |
669 | struct sk_buff *nskb; | |
b2767363 | 670 | struct hif_device_usb *hif_dev = |
fb9987d0 S |
671 | usb_get_intfdata(usb_ifnum_to_if(urb->dev, 0)); |
672 | int ret; | |
673 | ||
6335ed0f S |
674 | if (!skb) |
675 | return; | |
676 | ||
fb9987d0 S |
677 | if (!hif_dev) |
678 | goto free; | |
679 | ||
680 | switch (urb->status) { | |
681 | case 0: | |
682 | break; | |
683 | case -ENOENT: | |
684 | case -ECONNRESET: | |
685 | case -ENODEV: | |
686 | case -ESHUTDOWN: | |
687 | goto free; | |
688 | default: | |
3deff760 SM |
689 | skb_reset_tail_pointer(skb); |
690 | skb_trim(skb, 0); | |
691 | ||
fb9987d0 S |
692 | goto resubmit; |
693 | } | |
694 | ||
695 | if (likely(urb->actual_length != 0)) { | |
696 | skb_put(skb, urb->actual_length); | |
697 | ||
5ab0af32 S |
698 | /* Process the command first */ |
699 | ath9k_htc_rx_msg(hif_dev->htc_handle, skb, | |
700 | skb->len, USB_REG_IN_PIPE); | |
701 | ||
702 | ||
e6c6d33c | 703 | nskb = alloc_skb(MAX_REG_IN_BUF_SIZE, GFP_ATOMIC); |
5ab0af32 S |
704 | if (!nskb) { |
705 | dev_err(&hif_dev->udev->dev, | |
706 | "ath9k_htc: REG_IN memory allocation failure\n"); | |
707 | urb->context = NULL; | |
708 | return; | |
709 | } | |
fb9987d0 | 710 | |
490b3f4e | 711 | usb_fill_bulk_urb(urb, hif_dev->udev, |
0f529e98 RM |
712 | usb_rcvbulkpipe(hif_dev->udev, |
713 | USB_REG_IN_PIPE), | |
fb9987d0 | 714 | nskb->data, MAX_REG_IN_BUF_SIZE, |
490b3f4e | 715 | ath9k_hif_usb_reg_in_cb, nskb); |
fb9987d0 S |
716 | } |
717 | ||
718 | resubmit: | |
3deff760 | 719 | usb_anchor_urb(urb, &hif_dev->reg_in_submitted); |
fb9987d0 | 720 | ret = usb_submit_urb(urb, GFP_ATOMIC); |
3deff760 SM |
721 | if (ret) { |
722 | usb_unanchor_urb(urb); | |
fb9987d0 | 723 | goto free; |
3deff760 | 724 | } |
fb9987d0 S |
725 | |
726 | return; | |
727 | free: | |
e6c6d33c | 728 | kfree_skb(skb); |
6335ed0f | 729 | urb->context = NULL; |
fb9987d0 S |
730 | } |
731 | ||
732 | static void ath9k_hif_usb_dealloc_tx_urbs(struct hif_device_usb *hif_dev) | |
733 | { | |
fb9987d0 | 734 | struct tx_buf *tx_buf = NULL, *tx_buf_tmp = NULL; |
ff8f59b5 | 735 | unsigned long flags; |
fb9987d0 | 736 | |
c11d8f89 S |
737 | list_for_each_entry_safe(tx_buf, tx_buf_tmp, |
738 | &hif_dev->tx.tx_buf, list) { | |
739 | usb_kill_urb(tx_buf->urb); | |
fb9987d0 S |
740 | list_del(&tx_buf->list); |
741 | usb_free_urb(tx_buf->urb); | |
742 | kfree(tx_buf->buf); | |
743 | kfree(tx_buf); | |
744 | } | |
745 | ||
ff8f59b5 SM |
746 | spin_lock_irqsave(&hif_dev->tx.tx_lock, flags); |
747 | hif_dev->tx.flags |= HIF_USB_TX_FLUSH; | |
748 | spin_unlock_irqrestore(&hif_dev->tx.tx_lock, flags); | |
749 | ||
fb9987d0 S |
750 | list_for_each_entry_safe(tx_buf, tx_buf_tmp, |
751 | &hif_dev->tx.tx_pending, list) { | |
752 | usb_kill_urb(tx_buf->urb); | |
753 | list_del(&tx_buf->list); | |
754 | usb_free_urb(tx_buf->urb); | |
755 | kfree(tx_buf->buf); | |
756 | kfree(tx_buf); | |
757 | } | |
2f80194c SM |
758 | |
759 | usb_kill_anchored_urbs(&hif_dev->mgmt_submitted); | |
fb9987d0 S |
760 | } |
761 | ||
762 | static int ath9k_hif_usb_alloc_tx_urbs(struct hif_device_usb *hif_dev) | |
763 | { | |
764 | struct tx_buf *tx_buf; | |
765 | int i; | |
766 | ||
767 | INIT_LIST_HEAD(&hif_dev->tx.tx_buf); | |
768 | INIT_LIST_HEAD(&hif_dev->tx.tx_pending); | |
769 | spin_lock_init(&hif_dev->tx.tx_lock); | |
770 | __skb_queue_head_init(&hif_dev->tx.tx_skb_queue); | |
2f80194c | 771 | init_usb_anchor(&hif_dev->mgmt_submitted); |
fb9987d0 S |
772 | |
773 | for (i = 0; i < MAX_TX_URB_NUM; i++) { | |
774 | tx_buf = kzalloc(sizeof(struct tx_buf), GFP_KERNEL); | |
775 | if (!tx_buf) | |
776 | goto err; | |
777 | ||
778 | tx_buf->buf = kzalloc(MAX_TX_BUF_SIZE, GFP_KERNEL); | |
779 | if (!tx_buf->buf) | |
780 | goto err; | |
781 | ||
782 | tx_buf->urb = usb_alloc_urb(0, GFP_KERNEL); | |
783 | if (!tx_buf->urb) | |
784 | goto err; | |
785 | ||
786 | tx_buf->hif_dev = hif_dev; | |
787 | __skb_queue_head_init(&tx_buf->skb_queue); | |
788 | ||
789 | list_add_tail(&tx_buf->list, &hif_dev->tx.tx_buf); | |
790 | } | |
791 | ||
792 | hif_dev->tx.tx_buf_cnt = MAX_TX_URB_NUM; | |
793 | ||
794 | return 0; | |
795 | err: | |
7606688a DC |
796 | if (tx_buf) { |
797 | kfree(tx_buf->buf); | |
798 | kfree(tx_buf); | |
799 | } | |
fb9987d0 S |
800 | ath9k_hif_usb_dealloc_tx_urbs(hif_dev); |
801 | return -ENOMEM; | |
802 | } | |
803 | ||
fb9987d0 S |
804 | static void ath9k_hif_usb_dealloc_rx_urbs(struct hif_device_usb *hif_dev) |
805 | { | |
6335ed0f | 806 | usb_kill_anchored_urbs(&hif_dev->rx_submitted); |
fb9987d0 S |
807 | } |
808 | ||
809 | static int ath9k_hif_usb_alloc_rx_urbs(struct hif_device_usb *hif_dev) | |
810 | { | |
6335ed0f S |
811 | struct urb *urb = NULL; |
812 | struct sk_buff *skb = NULL; | |
fb9987d0 S |
813 | int i, ret; |
814 | ||
6335ed0f | 815 | init_usb_anchor(&hif_dev->rx_submitted); |
46baa1a2 | 816 | spin_lock_init(&hif_dev->rx_lock); |
6335ed0f | 817 | |
fb9987d0 S |
818 | for (i = 0; i < MAX_RX_URB_NUM; i++) { |
819 | ||
820 | /* Allocate URB */ | |
6335ed0f S |
821 | urb = usb_alloc_urb(0, GFP_KERNEL); |
822 | if (urb == NULL) { | |
fb9987d0 | 823 | ret = -ENOMEM; |
6335ed0f | 824 | goto err_urb; |
fb9987d0 S |
825 | } |
826 | ||
827 | /* Allocate buffer */ | |
f28a7b30 | 828 | skb = alloc_skb(MAX_RX_BUF_SIZE, GFP_KERNEL); |
6335ed0f S |
829 | if (!skb) { |
830 | ret = -ENOMEM; | |
831 | goto err_skb; | |
832 | } | |
fb9987d0 | 833 | |
6335ed0f S |
834 | usb_fill_bulk_urb(urb, hif_dev->udev, |
835 | usb_rcvbulkpipe(hif_dev->udev, | |
836 | USB_WLAN_RX_PIPE), | |
837 | skb->data, MAX_RX_BUF_SIZE, | |
838 | ath9k_hif_usb_rx_cb, skb); | |
839 | ||
840 | /* Anchor URB */ | |
841 | usb_anchor_urb(urb, &hif_dev->rx_submitted); | |
fb9987d0 | 842 | |
6335ed0f S |
843 | /* Submit URB */ |
844 | ret = usb_submit_urb(urb, GFP_KERNEL); | |
845 | if (ret) { | |
846 | usb_unanchor_urb(urb); | |
847 | goto err_submit; | |
848 | } | |
66b10e33 S |
849 | |
850 | /* | |
851 | * Drop reference count. | |
852 | * This ensures that the URB is freed when killing them. | |
853 | */ | |
854 | usb_free_urb(urb); | |
fb9987d0 S |
855 | } |
856 | ||
857 | return 0; | |
858 | ||
6335ed0f | 859 | err_submit: |
f28a7b30 | 860 | kfree_skb(skb); |
6335ed0f S |
861 | err_skb: |
862 | usb_free_urb(urb); | |
863 | err_urb: | |
fb9987d0 S |
864 | ath9k_hif_usb_dealloc_rx_urbs(hif_dev); |
865 | return ret; | |
866 | } | |
867 | ||
3deff760 | 868 | static void ath9k_hif_usb_dealloc_reg_in_urbs(struct hif_device_usb *hif_dev) |
fb9987d0 | 869 | { |
3deff760 | 870 | usb_kill_anchored_urbs(&hif_dev->reg_in_submitted); |
fb9987d0 S |
871 | } |
872 | ||
3deff760 | 873 | static int ath9k_hif_usb_alloc_reg_in_urbs(struct hif_device_usb *hif_dev) |
fb9987d0 | 874 | { |
3deff760 SM |
875 | struct urb *urb = NULL; |
876 | struct sk_buff *skb = NULL; | |
877 | int i, ret; | |
fb9987d0 | 878 | |
3deff760 | 879 | init_usb_anchor(&hif_dev->reg_in_submitted); |
fb9987d0 | 880 | |
3deff760 | 881 | for (i = 0; i < MAX_REG_IN_URB_NUM; i++) { |
fb9987d0 | 882 | |
3deff760 SM |
883 | /* Allocate URB */ |
884 | urb = usb_alloc_urb(0, GFP_KERNEL); | |
885 | if (urb == NULL) { | |
886 | ret = -ENOMEM; | |
887 | goto err_urb; | |
888 | } | |
fb9987d0 | 889 | |
3deff760 SM |
890 | /* Allocate buffer */ |
891 | skb = alloc_skb(MAX_REG_IN_BUF_SIZE, GFP_KERNEL); | |
892 | if (!skb) { | |
893 | ret = -ENOMEM; | |
894 | goto err_skb; | |
895 | } | |
896 | ||
897 | usb_fill_bulk_urb(urb, hif_dev->udev, | |
898 | usb_rcvbulkpipe(hif_dev->udev, | |
899 | USB_REG_IN_PIPE), | |
900 | skb->data, MAX_REG_IN_BUF_SIZE, | |
901 | ath9k_hif_usb_reg_in_cb, skb); | |
902 | ||
903 | /* Anchor URB */ | |
904 | usb_anchor_urb(urb, &hif_dev->reg_in_submitted); | |
905 | ||
906 | /* Submit URB */ | |
907 | ret = usb_submit_urb(urb, GFP_KERNEL); | |
908 | if (ret) { | |
909 | usb_unanchor_urb(urb); | |
910 | goto err_submit; | |
911 | } | |
912 | ||
913 | /* | |
914 | * Drop reference count. | |
915 | * This ensures that the URB is freed when killing them. | |
916 | */ | |
917 | usb_free_urb(urb); | |
918 | } | |
fb9987d0 S |
919 | |
920 | return 0; | |
921 | ||
3deff760 SM |
922 | err_submit: |
923 | kfree_skb(skb); | |
924 | err_skb: | |
925 | usb_free_urb(urb); | |
926 | err_urb: | |
927 | ath9k_hif_usb_dealloc_reg_in_urbs(hif_dev); | |
928 | return ret; | |
fb9987d0 S |
929 | } |
930 | ||
931 | static int ath9k_hif_usb_alloc_urbs(struct hif_device_usb *hif_dev) | |
932 | { | |
6f0f2669 S |
933 | /* Register Write */ |
934 | init_usb_anchor(&hif_dev->regout_submitted); | |
935 | ||
fb9987d0 S |
936 | /* TX */ |
937 | if (ath9k_hif_usb_alloc_tx_urbs(hif_dev) < 0) | |
938 | goto err; | |
939 | ||
940 | /* RX */ | |
941 | if (ath9k_hif_usb_alloc_rx_urbs(hif_dev) < 0) | |
f8036965 | 942 | goto err_rx; |
fb9987d0 | 943 | |
6f0f2669 | 944 | /* Register Read */ |
3deff760 | 945 | if (ath9k_hif_usb_alloc_reg_in_urbs(hif_dev) < 0) |
f8036965 | 946 | goto err_reg; |
fb9987d0 S |
947 | |
948 | return 0; | |
f8036965 RM |
949 | err_reg: |
950 | ath9k_hif_usb_dealloc_rx_urbs(hif_dev); | |
951 | err_rx: | |
952 | ath9k_hif_usb_dealloc_tx_urbs(hif_dev); | |
fb9987d0 S |
953 | err: |
954 | return -ENOMEM; | |
955 | } | |
956 | ||
1d8af8ca SM |
957 | static void ath9k_hif_usb_dealloc_urbs(struct hif_device_usb *hif_dev) |
958 | { | |
959 | usb_kill_anchored_urbs(&hif_dev->regout_submitted); | |
3deff760 | 960 | ath9k_hif_usb_dealloc_reg_in_urbs(hif_dev); |
1d8af8ca SM |
961 | ath9k_hif_usb_dealloc_tx_urbs(hif_dev); |
962 | ath9k_hif_usb_dealloc_rx_urbs(hif_dev); | |
963 | } | |
964 | ||
fa6e15e0 RM |
965 | static int ath9k_hif_usb_download_fw(struct hif_device_usb *hif_dev, |
966 | u32 drv_info) | |
fb9987d0 S |
967 | { |
968 | int transfer, err; | |
969 | const void *data = hif_dev->firmware->data; | |
970 | size_t len = hif_dev->firmware->size; | |
971 | u32 addr = AR9271_FIRMWARE; | |
972 | u8 *buf = kzalloc(4096, GFP_KERNEL); | |
b1762862 | 973 | u32 firm_offset; |
fb9987d0 S |
974 | |
975 | if (!buf) | |
976 | return -ENOMEM; | |
977 | ||
978 | while (len) { | |
979 | transfer = min_t(int, len, 4096); | |
980 | memcpy(buf, data, transfer); | |
981 | ||
982 | err = usb_control_msg(hif_dev->udev, | |
983 | usb_sndctrlpipe(hif_dev->udev, 0), | |
984 | FIRMWARE_DOWNLOAD, 0x40 | USB_DIR_OUT, | |
985 | addr >> 8, 0, buf, transfer, HZ); | |
986 | if (err < 0) { | |
987 | kfree(buf); | |
988 | return err; | |
989 | } | |
990 | ||
991 | len -= transfer; | |
992 | data += transfer; | |
993 | addr += transfer; | |
994 | } | |
995 | kfree(buf); | |
996 | ||
0b5ead91 | 997 | if (IS_AR7010_DEVICE(drv_info)) |
b1762862 | 998 | firm_offset = AR7010_FIRMWARE_TEXT; |
fa6e15e0 | 999 | else |
b1762862 S |
1000 | firm_offset = AR9271_FIRMWARE_TEXT; |
1001 | ||
fb9987d0 S |
1002 | /* |
1003 | * Issue FW download complete command to firmware. | |
1004 | */ | |
1005 | err = usb_control_msg(hif_dev->udev, usb_sndctrlpipe(hif_dev->udev, 0), | |
1006 | FIRMWARE_DOWNLOAD_COMP, | |
1007 | 0x40 | USB_DIR_OUT, | |
b1762862 | 1008 | firm_offset >> 8, 0, NULL, 0, HZ); |
fb9987d0 S |
1009 | if (err) |
1010 | return -EIO; | |
1011 | ||
1012 | dev_info(&hif_dev->udev->dev, "ath9k_htc: Transferred FW: %s, size: %ld\n", | |
ce43cee5 | 1013 | hif_dev->fw_name, (unsigned long) hif_dev->firmware->size); |
fb9987d0 S |
1014 | |
1015 | return 0; | |
1016 | } | |
1017 | ||
fa6e15e0 | 1018 | static int ath9k_hif_usb_dev_init(struct hif_device_usb *hif_dev, u32 drv_info) |
fb9987d0 | 1019 | { |
4a0e8ecc RM |
1020 | int ret, idx; |
1021 | struct usb_host_interface *alt = &hif_dev->interface->altsetting[0]; | |
1022 | struct usb_endpoint_descriptor *endp; | |
fb9987d0 S |
1023 | |
1024 | /* Request firmware */ | |
ce43cee5 S |
1025 | ret = request_firmware(&hif_dev->firmware, hif_dev->fw_name, |
1026 | &hif_dev->udev->dev); | |
fb9987d0 S |
1027 | if (ret) { |
1028 | dev_err(&hif_dev->udev->dev, | |
ce43cee5 | 1029 | "ath9k_htc: Firmware - %s not found\n", hif_dev->fw_name); |
fb9987d0 S |
1030 | goto err_fw_req; |
1031 | } | |
1032 | ||
1d8af8ca | 1033 | /* Download firmware */ |
fa6e15e0 | 1034 | ret = ath9k_hif_usb_download_fw(hif_dev, drv_info); |
1d8af8ca SM |
1035 | if (ret) { |
1036 | dev_err(&hif_dev->udev->dev, | |
ce43cee5 S |
1037 | "ath9k_htc: Firmware - %s download failed\n", |
1038 | hif_dev->fw_name); | |
1d8af8ca SM |
1039 | goto err_fw_download; |
1040 | } | |
1041 | ||
4a0e8ecc RM |
1042 | /* On downloading the firmware to the target, the USB descriptor of EP4 |
1043 | * is 'patched' to change the type of the endpoint to Bulk. This will | |
1044 | * bring down CPU usage during the scan period. | |
1045 | */ | |
1046 | for (idx = 0; idx < alt->desc.bNumEndpoints; idx++) { | |
1047 | endp = &alt->endpoint[idx].desc; | |
490b3f4e RM |
1048 | if ((endp->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) |
1049 | == USB_ENDPOINT_XFER_INT) { | |
4a0e8ecc RM |
1050 | endp->bmAttributes &= ~USB_ENDPOINT_XFERTYPE_MASK; |
1051 | endp->bmAttributes |= USB_ENDPOINT_XFER_BULK; | |
1052 | endp->bInterval = 0; | |
1053 | } | |
1054 | } | |
1055 | ||
490b3f4e RM |
1056 | /* Alloc URBs */ |
1057 | ret = ath9k_hif_usb_alloc_urbs(hif_dev); | |
1058 | if (ret) { | |
1059 | dev_err(&hif_dev->udev->dev, | |
1060 | "ath9k_htc: Unable to allocate URBs\n"); | |
512c044a | 1061 | goto err_fw_download; |
490b3f4e RM |
1062 | } |
1063 | ||
fb9987d0 S |
1064 | return 0; |
1065 | ||
caa0a99a | 1066 | err_fw_download: |
fb9987d0 S |
1067 | release_firmware(hif_dev->firmware); |
1068 | err_fw_req: | |
1069 | hif_dev->firmware = NULL; | |
1070 | return ret; | |
1071 | } | |
1072 | ||
fb9987d0 S |
1073 | static void ath9k_hif_usb_dev_deinit(struct hif_device_usb *hif_dev) |
1074 | { | |
1075 | ath9k_hif_usb_dealloc_urbs(hif_dev); | |
1076 | if (hif_dev->firmware) | |
1077 | release_firmware(hif_dev->firmware); | |
1078 | } | |
1079 | ||
36bcce43 SM |
1080 | /* |
1081 | * An exact copy of the function from zd1211rw. | |
1082 | */ | |
1083 | static int send_eject_command(struct usb_interface *interface) | |
1084 | { | |
1085 | struct usb_device *udev = interface_to_usbdev(interface); | |
1086 | struct usb_host_interface *iface_desc = &interface->altsetting[0]; | |
1087 | struct usb_endpoint_descriptor *endpoint; | |
1088 | unsigned char *cmd; | |
1089 | u8 bulk_out_ep; | |
1090 | int r; | |
1091 | ||
1092 | /* Find bulk out endpoint */ | |
1093 | for (r = 1; r >= 0; r--) { | |
1094 | endpoint = &iface_desc->endpoint[r].desc; | |
1095 | if (usb_endpoint_dir_out(endpoint) && | |
1096 | usb_endpoint_xfer_bulk(endpoint)) { | |
1097 | bulk_out_ep = endpoint->bEndpointAddress; | |
1098 | break; | |
1099 | } | |
1100 | } | |
1101 | if (r == -1) { | |
1102 | dev_err(&udev->dev, | |
1103 | "ath9k_htc: Could not find bulk out endpoint\n"); | |
1104 | return -ENODEV; | |
1105 | } | |
1106 | ||
1107 | cmd = kzalloc(31, GFP_KERNEL); | |
1108 | if (cmd == NULL) | |
1109 | return -ENODEV; | |
1110 | ||
1111 | /* USB bulk command block */ | |
1112 | cmd[0] = 0x55; /* bulk command signature */ | |
1113 | cmd[1] = 0x53; /* bulk command signature */ | |
1114 | cmd[2] = 0x42; /* bulk command signature */ | |
1115 | cmd[3] = 0x43; /* bulk command signature */ | |
1116 | cmd[14] = 6; /* command length */ | |
1117 | ||
1118 | cmd[15] = 0x1b; /* SCSI command: START STOP UNIT */ | |
1119 | cmd[19] = 0x2; /* eject disc */ | |
1120 | ||
1121 | dev_info(&udev->dev, "Ejecting storage device...\n"); | |
1122 | r = usb_bulk_msg(udev, usb_sndbulkpipe(udev, bulk_out_ep), | |
1123 | cmd, 31, NULL, 2000); | |
1124 | kfree(cmd); | |
1125 | if (r) | |
1126 | return r; | |
1127 | ||
1128 | /* At this point, the device disconnects and reconnects with the real | |
1129 | * ID numbers. */ | |
1130 | ||
1131 | usb_set_intfdata(interface, NULL); | |
1132 | return 0; | |
1133 | } | |
1134 | ||
fb9987d0 S |
1135 | static int ath9k_hif_usb_probe(struct usb_interface *interface, |
1136 | const struct usb_device_id *id) | |
1137 | { | |
1138 | struct usb_device *udev = interface_to_usbdev(interface); | |
1139 | struct hif_device_usb *hif_dev; | |
fb9987d0 S |
1140 | int ret = 0; |
1141 | ||
36bcce43 SM |
1142 | if (id->driver_info == STORAGE_DEVICE) |
1143 | return send_eject_command(interface); | |
1144 | ||
fb9987d0 S |
1145 | hif_dev = kzalloc(sizeof(struct hif_device_usb), GFP_KERNEL); |
1146 | if (!hif_dev) { | |
1147 | ret = -ENOMEM; | |
1148 | goto err_alloc; | |
1149 | } | |
1150 | ||
1151 | usb_get_dev(udev); | |
1152 | hif_dev->udev = udev; | |
1153 | hif_dev->interface = interface; | |
1154 | hif_dev->device_id = id->idProduct; | |
1155 | #ifdef CONFIG_PM | |
1156 | udev->reset_resume = 1; | |
1157 | #endif | |
1158 | usb_set_intfdata(interface, hif_dev); | |
1159 | ||
47fce026 SM |
1160 | hif_dev->htc_handle = ath9k_htc_hw_alloc(hif_dev, &hif_usb, |
1161 | &hif_dev->udev->dev); | |
1162 | if (hif_dev->htc_handle == NULL) { | |
1163 | ret = -ENOMEM; | |
1164 | goto err_htc_hw_alloc; | |
1165 | } | |
1166 | ||
ce43cee5 S |
1167 | /* Find out which firmware to load */ |
1168 | ||
0b5ead91 | 1169 | if (IS_AR7010_DEVICE(id->driver_info)) |
9efabad2 | 1170 | hif_dev->fw_name = FIRMWARE_AR7010_1_1; |
fa6e15e0 | 1171 | else |
d0ee0ebe | 1172 | hif_dev->fw_name = FIRMWARE_AR9271; |
ce43cee5 | 1173 | |
fa6e15e0 | 1174 | ret = ath9k_hif_usb_dev_init(hif_dev, id->driver_info); |
fb9987d0 S |
1175 | if (ret) { |
1176 | ret = -EINVAL; | |
1177 | goto err_hif_init_usb; | |
1178 | } | |
1179 | ||
47fce026 | 1180 | ret = ath9k_htc_hw_init(hif_dev->htc_handle, |
50f68712 | 1181 | &interface->dev, hif_dev->device_id, |
fa6e15e0 | 1182 | hif_dev->udev->product, id->driver_info); |
fb9987d0 S |
1183 | if (ret) { |
1184 | ret = -EINVAL; | |
1185 | goto err_htc_hw_init; | |
1186 | } | |
1187 | ||
1188 | dev_info(&hif_dev->udev->dev, "ath9k_htc: USB layer initialized\n"); | |
1189 | ||
1190 | return 0; | |
1191 | ||
1192 | err_htc_hw_init: | |
fb9987d0 S |
1193 | ath9k_hif_usb_dev_deinit(hif_dev); |
1194 | err_hif_init_usb: | |
47fce026 SM |
1195 | ath9k_htc_hw_free(hif_dev->htc_handle); |
1196 | err_htc_hw_alloc: | |
fb9987d0 S |
1197 | usb_set_intfdata(interface, NULL); |
1198 | kfree(hif_dev); | |
1199 | usb_put_dev(udev); | |
1200 | err_alloc: | |
1201 | return ret; | |
1202 | } | |
1203 | ||
62e4716a S |
1204 | static void ath9k_hif_usb_reboot(struct usb_device *udev) |
1205 | { | |
1206 | u32 reboot_cmd = 0xffffffff; | |
1207 | void *buf; | |
1208 | int ret; | |
1209 | ||
a465a2cc | 1210 | buf = kmemdup(&reboot_cmd, 4, GFP_KERNEL); |
62e4716a S |
1211 | if (!buf) |
1212 | return; | |
1213 | ||
62e4716a S |
1214 | ret = usb_bulk_msg(udev, usb_sndbulkpipe(udev, USB_REG_OUT_PIPE), |
1215 | buf, 4, NULL, HZ); | |
1216 | if (ret) | |
1217 | dev_err(&udev->dev, "ath9k_htc: USB reboot failed\n"); | |
1218 | ||
1219 | kfree(buf); | |
1220 | } | |
1221 | ||
fb9987d0 S |
1222 | static void ath9k_hif_usb_disconnect(struct usb_interface *interface) |
1223 | { | |
1224 | struct usb_device *udev = interface_to_usbdev(interface); | |
b2767363 | 1225 | struct hif_device_usb *hif_dev = usb_get_intfdata(interface); |
97dcec57 | 1226 | bool unplugged = (udev->state == USB_STATE_NOTATTACHED) ? true : false; |
fb9987d0 | 1227 | |
36bcce43 SM |
1228 | if (!hif_dev) |
1229 | return; | |
1230 | ||
1231 | ath9k_htc_hw_deinit(hif_dev->htc_handle, unplugged); | |
1232 | ath9k_htc_hw_free(hif_dev->htc_handle); | |
1233 | ath9k_hif_usb_dev_deinit(hif_dev); | |
1234 | usb_set_intfdata(interface, NULL); | |
fb9987d0 | 1235 | |
97dcec57 | 1236 | if (!unplugged && (hif_dev->flags & HIF_USB_START)) |
62e4716a | 1237 | ath9k_hif_usb_reboot(udev); |
fb9987d0 S |
1238 | |
1239 | kfree(hif_dev); | |
1240 | dev_info(&udev->dev, "ath9k_htc: USB layer deinitialized\n"); | |
1241 | usb_put_dev(udev); | |
1242 | } | |
1243 | ||
1244 | #ifdef CONFIG_PM | |
1245 | static int ath9k_hif_usb_suspend(struct usb_interface *interface, | |
1246 | pm_message_t message) | |
1247 | { | |
b2767363 | 1248 | struct hif_device_usb *hif_dev = usb_get_intfdata(interface); |
fb9987d0 | 1249 | |
f933ebed SM |
1250 | /* |
1251 | * The device has to be set to FULLSLEEP mode in case no | |
1252 | * interface is up. | |
1253 | */ | |
1254 | if (!(hif_dev->flags & HIF_USB_START)) | |
1255 | ath9k_htc_suspend(hif_dev->htc_handle); | |
1256 | ||
fb9987d0 S |
1257 | ath9k_hif_usb_dealloc_urbs(hif_dev); |
1258 | ||
1259 | return 0; | |
1260 | } | |
1261 | ||
1262 | static int ath9k_hif_usb_resume(struct usb_interface *interface) | |
1263 | { | |
b2767363 | 1264 | struct hif_device_usb *hif_dev = usb_get_intfdata(interface); |
fa6e15e0 | 1265 | struct htc_target *htc_handle = hif_dev->htc_handle; |
fb9987d0 S |
1266 | int ret; |
1267 | ||
1268 | ret = ath9k_hif_usb_alloc_urbs(hif_dev); | |
1269 | if (ret) | |
1270 | return ret; | |
1271 | ||
1272 | if (hif_dev->firmware) { | |
fa6e15e0 | 1273 | ret = ath9k_hif_usb_download_fw(hif_dev, |
0b5ead91 | 1274 | htc_handle->drv_priv->ah->hw_version.usbdev); |
fb9987d0 S |
1275 | if (ret) |
1276 | goto fail_resume; | |
1277 | } else { | |
1278 | ath9k_hif_usb_dealloc_urbs(hif_dev); | |
1279 | return -EIO; | |
1280 | } | |
1281 | ||
1282 | mdelay(100); | |
1283 | ||
fa6e15e0 | 1284 | ret = ath9k_htc_resume(htc_handle); |
fb9987d0 S |
1285 | |
1286 | if (ret) | |
1287 | goto fail_resume; | |
1288 | ||
1289 | return 0; | |
1290 | ||
1291 | fail_resume: | |
1292 | ath9k_hif_usb_dealloc_urbs(hif_dev); | |
1293 | ||
1294 | return ret; | |
1295 | } | |
1296 | #endif | |
1297 | ||
1298 | static struct usb_driver ath9k_hif_usb_driver = { | |
50f68712 | 1299 | .name = KBUILD_MODNAME, |
fb9987d0 S |
1300 | .probe = ath9k_hif_usb_probe, |
1301 | .disconnect = ath9k_hif_usb_disconnect, | |
1302 | #ifdef CONFIG_PM | |
1303 | .suspend = ath9k_hif_usb_suspend, | |
1304 | .resume = ath9k_hif_usb_resume, | |
1305 | .reset_resume = ath9k_hif_usb_resume, | |
1306 | #endif | |
1307 | .id_table = ath9k_hif_usb_ids, | |
1308 | .soft_unbind = 1, | |
1309 | }; | |
1310 | ||
1311 | int ath9k_hif_usb_init(void) | |
1312 | { | |
1313 | return usb_register(&ath9k_hif_usb_driver); | |
1314 | } | |
1315 | ||
1316 | void ath9k_hif_usb_exit(void) | |
1317 | { | |
1318 | usb_deregister(&ath9k_hif_usb_driver); | |
1319 | } |