2 * Copyright (c) 2010 Atheros Communications Inc.
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.
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.
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"
24 MODULE_FIRMWARE(FIRMWARE_AR7010
);
25 MODULE_FIRMWARE(FIRMWARE_AR7010_1_1
);
26 MODULE_FIRMWARE(FIRMWARE_AR9271
);
28 static struct usb_device_id ath9k_hif_usb_ids
[] = {
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 */
38 { USB_DEVICE(0x04CA, 0x4605) }, /* Liteon */
39 { USB_DEVICE(0x083A, 0xA704) }, /* SMC Networks */
43 MODULE_DEVICE_TABLE(usb
, ath9k_hif_usb_ids
);
45 static int __hif_usb_tx(struct hif_device_usb
*hif_dev
);
47 static void hif_usb_regout_cb(struct urb
*urb
)
49 struct cmd_buf
*cmd
= (struct cmd_buf
*)urb
->context
;
51 switch (urb
->status
) {
64 ath9k_htc_txcompletion_cb(cmd
->hif_dev
->htc_handle
,
75 static int hif_usb_send_regout(struct hif_device_usb
*hif_dev
,
82 urb
= usb_alloc_urb(0, GFP_KERNEL
);
86 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
93 cmd
->hif_dev
= hif_dev
;
95 usb_fill_bulk_urb(urb
, hif_dev
->udev
,
96 usb_sndbulkpipe(hif_dev
->udev
, USB_REG_OUT_PIPE
),
98 hif_usb_regout_cb
, cmd
);
100 usb_anchor_urb(urb
, &hif_dev
->regout_submitted
);
101 ret
= usb_submit_urb(urb
, GFP_KERNEL
);
103 usb_unanchor_urb(urb
);
111 static inline void ath9k_skb_queue_purge(struct hif_device_usb
*hif_dev
,
112 struct sk_buff_head
*list
)
116 while ((skb
= __skb_dequeue(list
)) != NULL
) {
117 dev_kfree_skb_any(skb
);
118 TX_STAT_INC(skb_dropped
);
122 static void hif_usb_tx_cb(struct urb
*urb
)
124 struct tx_buf
*tx_buf
= (struct tx_buf
*) urb
->context
;
125 struct hif_device_usb
*hif_dev
;
128 if (!tx_buf
|| !tx_buf
->hif_dev
)
131 hif_dev
= tx_buf
->hif_dev
;
133 switch (urb
->status
) {
141 * The URB has been killed, free the SKBs
144 ath9k_skb_queue_purge(hif_dev
, &tx_buf
->skb_queue
);
150 /* Check if TX has been stopped */
151 spin_lock(&hif_dev
->tx
.tx_lock
);
152 if (hif_dev
->tx
.flags
& HIF_USB_TX_STOP
) {
153 spin_unlock(&hif_dev
->tx
.tx_lock
);
154 ath9k_skb_queue_purge(hif_dev
, &tx_buf
->skb_queue
);
157 spin_unlock(&hif_dev
->tx
.tx_lock
);
159 /* Complete the queued SKBs. */
160 while ((skb
= __skb_dequeue(&tx_buf
->skb_queue
)) != NULL
) {
161 ath9k_htc_txcompletion_cb(hif_dev
->htc_handle
,
163 TX_STAT_INC(skb_completed
);
167 /* Re-initialize the SKB queue */
168 tx_buf
->len
= tx_buf
->offset
= 0;
169 __skb_queue_head_init(&tx_buf
->skb_queue
);
171 /* Add this TX buffer to the free list */
172 spin_lock(&hif_dev
->tx
.tx_lock
);
173 list_move_tail(&tx_buf
->list
, &hif_dev
->tx
.tx_buf
);
174 hif_dev
->tx
.tx_buf_cnt
++;
175 if (!(hif_dev
->tx
.flags
& HIF_USB_TX_STOP
))
176 __hif_usb_tx(hif_dev
); /* Check for pending SKBs */
177 TX_STAT_INC(buf_completed
);
178 spin_unlock(&hif_dev
->tx
.tx_lock
);
181 /* TX lock has to be taken */
182 static int __hif_usb_tx(struct hif_device_usb
*hif_dev
)
184 struct tx_buf
*tx_buf
= NULL
;
185 struct sk_buff
*nskb
= NULL
;
187 u16
*hdr
, tx_skb_cnt
= 0;
190 if (hif_dev
->tx
.tx_skb_cnt
== 0)
193 /* Check if a free TX buffer is available */
194 if (list_empty(&hif_dev
->tx
.tx_buf
))
197 tx_buf
= list_first_entry(&hif_dev
->tx
.tx_buf
, struct tx_buf
, list
);
198 list_move_tail(&tx_buf
->list
, &hif_dev
->tx
.tx_pending
);
199 hif_dev
->tx
.tx_buf_cnt
--;
201 tx_skb_cnt
= min_t(u16
, hif_dev
->tx
.tx_skb_cnt
, MAX_TX_AGGR_NUM
);
203 for (i
= 0; i
< tx_skb_cnt
; i
++) {
204 nskb
= __skb_dequeue(&hif_dev
->tx
.tx_skb_queue
);
206 /* Should never be NULL */
209 hif_dev
->tx
.tx_skb_cnt
--;
212 buf
+= tx_buf
->offset
;
215 *hdr
++ = ATH_USB_TX_STREAM_MODE_TAG
;
217 memcpy(buf
, nskb
->data
, nskb
->len
);
218 tx_buf
->len
= nskb
->len
+ 4;
220 if (i
< (tx_skb_cnt
- 1))
221 tx_buf
->offset
+= (((tx_buf
->len
- 1) / 4) + 1) * 4;
223 if (i
== (tx_skb_cnt
- 1))
224 tx_buf
->len
+= tx_buf
->offset
;
226 __skb_queue_tail(&tx_buf
->skb_queue
, nskb
);
227 TX_STAT_INC(skb_queued
);
230 usb_fill_bulk_urb(tx_buf
->urb
, hif_dev
->udev
,
231 usb_sndbulkpipe(hif_dev
->udev
, USB_WLAN_TX_PIPE
),
232 tx_buf
->buf
, tx_buf
->len
,
233 hif_usb_tx_cb
, tx_buf
);
235 ret
= usb_submit_urb(tx_buf
->urb
, GFP_ATOMIC
);
237 tx_buf
->len
= tx_buf
->offset
= 0;
238 ath9k_skb_queue_purge(hif_dev
, &tx_buf
->skb_queue
);
239 __skb_queue_head_init(&tx_buf
->skb_queue
);
240 list_move_tail(&tx_buf
->list
, &hif_dev
->tx
.tx_buf
);
241 hif_dev
->tx
.tx_buf_cnt
++;
245 TX_STAT_INC(buf_queued
);
250 static int hif_usb_send_tx(struct hif_device_usb
*hif_dev
, struct sk_buff
*skb
,
251 struct ath9k_htc_tx_ctl
*tx_ctl
)
255 spin_lock_irqsave(&hif_dev
->tx
.tx_lock
, flags
);
257 if (hif_dev
->tx
.flags
& HIF_USB_TX_STOP
) {
258 spin_unlock_irqrestore(&hif_dev
->tx
.tx_lock
, flags
);
262 /* Check if the max queue count has been reached */
263 if (hif_dev
->tx
.tx_skb_cnt
> MAX_TX_BUF_NUM
) {
264 spin_unlock_irqrestore(&hif_dev
->tx
.tx_lock
, flags
);
268 __skb_queue_tail(&hif_dev
->tx
.tx_skb_queue
, skb
);
269 hif_dev
->tx
.tx_skb_cnt
++;
271 /* Send normal frames immediately */
272 if (!tx_ctl
|| (tx_ctl
&& (tx_ctl
->type
== ATH9K_HTC_NORMAL
)))
273 __hif_usb_tx(hif_dev
);
275 /* Check if AMPDUs have to be sent immediately */
276 if (tx_ctl
&& (tx_ctl
->type
== ATH9K_HTC_AMPDU
) &&
277 (hif_dev
->tx
.tx_buf_cnt
== MAX_TX_URB_NUM
) &&
278 (hif_dev
->tx
.tx_skb_cnt
< 2)) {
279 __hif_usb_tx(hif_dev
);
282 spin_unlock_irqrestore(&hif_dev
->tx
.tx_lock
, flags
);
287 static void hif_usb_start(void *hif_handle
, u8 pipe_id
)
289 struct hif_device_usb
*hif_dev
= (struct hif_device_usb
*)hif_handle
;
292 hif_dev
->flags
|= HIF_USB_START
;
294 spin_lock_irqsave(&hif_dev
->tx
.tx_lock
, flags
);
295 hif_dev
->tx
.flags
&= ~HIF_USB_TX_STOP
;
296 spin_unlock_irqrestore(&hif_dev
->tx
.tx_lock
, flags
);
299 static void hif_usb_stop(void *hif_handle
, u8 pipe_id
)
301 struct hif_device_usb
*hif_dev
= (struct hif_device_usb
*)hif_handle
;
304 spin_lock_irqsave(&hif_dev
->tx
.tx_lock
, flags
);
305 ath9k_skb_queue_purge(hif_dev
, &hif_dev
->tx
.tx_skb_queue
);
306 hif_dev
->tx
.tx_skb_cnt
= 0;
307 hif_dev
->tx
.flags
|= HIF_USB_TX_STOP
;
308 spin_unlock_irqrestore(&hif_dev
->tx
.tx_lock
, flags
);
311 static int hif_usb_send(void *hif_handle
, u8 pipe_id
, struct sk_buff
*skb
,
312 struct ath9k_htc_tx_ctl
*tx_ctl
)
314 struct hif_device_usb
*hif_dev
= (struct hif_device_usb
*)hif_handle
;
318 case USB_WLAN_TX_PIPE
:
319 ret
= hif_usb_send_tx(hif_dev
, skb
, tx_ctl
);
321 case USB_REG_OUT_PIPE
:
322 ret
= hif_usb_send_regout(hif_dev
, skb
);
325 dev_err(&hif_dev
->udev
->dev
,
326 "ath9k_htc: Invalid TX pipe: %d\n", pipe_id
);
334 static struct ath9k_htc_hif hif_usb
= {
335 .transport
= ATH9K_HIF_USB
,
336 .name
= "ath9k_hif_usb",
338 .control_ul_pipe
= USB_REG_OUT_PIPE
,
339 .control_dl_pipe
= USB_REG_IN_PIPE
,
341 .start
= hif_usb_start
,
342 .stop
= hif_usb_stop
,
343 .send
= hif_usb_send
,
346 static void ath9k_hif_usb_rx_stream(struct hif_device_usb
*hif_dev
,
349 struct sk_buff
*nskb
, *skb_pool
[MAX_PKT_NUM_IN_TRANSFER
];
350 int index
= 0, i
= 0, chk_idx
, len
= skb
->len
;
351 int rx_remain_len
= 0, rx_pkt_len
= 0;
352 u16 pkt_len
, pkt_tag
, pool_index
= 0;
355 spin_lock(&hif_dev
->rx_lock
);
357 rx_remain_len
= hif_dev
->rx_remain_len
;
358 rx_pkt_len
= hif_dev
->rx_transfer_len
;
360 if (rx_remain_len
!= 0) {
361 struct sk_buff
*remain_skb
= hif_dev
->remain_skb
;
364 ptr
= (u8
*) remain_skb
->data
;
366 index
= rx_remain_len
;
367 rx_remain_len
-= hif_dev
->rx_pad_len
;
370 memcpy(ptr
, skb
->data
, rx_remain_len
);
372 rx_pkt_len
+= rx_remain_len
;
373 hif_dev
->rx_remain_len
= 0;
374 skb_put(remain_skb
, rx_pkt_len
);
376 skb_pool
[pool_index
++] = remain_skb
;
379 index
= rx_remain_len
;
383 spin_unlock(&hif_dev
->rx_lock
);
385 while (index
< len
) {
386 ptr
= (u8
*) skb
->data
;
388 pkt_len
= ptr
[index
] + (ptr
[index
+1] << 8);
389 pkt_tag
= ptr
[index
+2] + (ptr
[index
+3] << 8);
391 if (pkt_tag
== ATH_USB_RX_STREAM_MODE_TAG
) {
394 pad_len
= 4 - (pkt_len
& 0x3);
399 index
= index
+ 4 + pkt_len
+ pad_len
;
401 if (index
> MAX_RX_BUF_SIZE
) {
402 spin_lock(&hif_dev
->rx_lock
);
403 hif_dev
->rx_remain_len
= index
- MAX_RX_BUF_SIZE
;
404 hif_dev
->rx_transfer_len
=
405 MAX_RX_BUF_SIZE
- chk_idx
- 4;
406 hif_dev
->rx_pad_len
= pad_len
;
408 nskb
= __dev_alloc_skb(pkt_len
+ 32,
411 dev_err(&hif_dev
->udev
->dev
,
412 "ath9k_htc: RX memory allocation"
414 spin_unlock(&hif_dev
->rx_lock
);
417 skb_reserve(nskb
, 32);
418 RX_STAT_INC(skb_allocated
);
420 memcpy(nskb
->data
, &(skb
->data
[chk_idx
+4]),
421 hif_dev
->rx_transfer_len
);
423 /* Record the buffer pointer */
424 hif_dev
->remain_skb
= nskb
;
425 spin_unlock(&hif_dev
->rx_lock
);
427 nskb
= __dev_alloc_skb(pkt_len
+ 32, GFP_ATOMIC
);
429 dev_err(&hif_dev
->udev
->dev
,
430 "ath9k_htc: RX memory allocation"
434 skb_reserve(nskb
, 32);
435 RX_STAT_INC(skb_allocated
);
437 memcpy(nskb
->data
, &(skb
->data
[chk_idx
+4]), pkt_len
);
438 skb_put(nskb
, pkt_len
);
439 skb_pool
[pool_index
++] = nskb
;
442 RX_STAT_INC(skb_dropped
);
448 for (i
= 0; i
< pool_index
; i
++) {
449 ath9k_htc_rx_msg(hif_dev
->htc_handle
, skb_pool
[i
],
450 skb_pool
[i
]->len
, USB_WLAN_RX_PIPE
);
451 RX_STAT_INC(skb_completed
);
455 static void ath9k_hif_usb_rx_cb(struct urb
*urb
)
457 struct sk_buff
*skb
= (struct sk_buff
*) urb
->context
;
458 struct hif_device_usb
*hif_dev
= (struct hif_device_usb
*)
459 usb_get_intfdata(usb_ifnum_to_if(urb
->dev
, 0));
468 switch (urb
->status
) {
480 if (likely(urb
->actual_length
!= 0)) {
481 skb_put(skb
, urb
->actual_length
);
482 ath9k_hif_usb_rx_stream(hif_dev
, skb
);
486 skb_reset_tail_pointer(skb
);
489 usb_anchor_urb(urb
, &hif_dev
->rx_submitted
);
490 ret
= usb_submit_urb(urb
, GFP_ATOMIC
);
492 usb_unanchor_urb(urb
);
501 static void ath9k_hif_usb_reg_in_cb(struct urb
*urb
)
503 struct sk_buff
*skb
= (struct sk_buff
*) urb
->context
;
504 struct sk_buff
*nskb
;
505 struct hif_device_usb
*hif_dev
= (struct hif_device_usb
*)
506 usb_get_intfdata(usb_ifnum_to_if(urb
->dev
, 0));
515 switch (urb
->status
) {
527 if (likely(urb
->actual_length
!= 0)) {
528 skb_put(skb
, urb
->actual_length
);
530 /* Process the command first */
531 ath9k_htc_rx_msg(hif_dev
->htc_handle
, skb
,
532 skb
->len
, USB_REG_IN_PIPE
);
535 nskb
= alloc_skb(MAX_REG_IN_BUF_SIZE
, GFP_ATOMIC
);
537 dev_err(&hif_dev
->udev
->dev
,
538 "ath9k_htc: REG_IN memory allocation failure\n");
543 usb_fill_int_urb(urb
, hif_dev
->udev
,
544 usb_rcvbulkpipe(hif_dev
->udev
,
546 nskb
->data
, MAX_REG_IN_BUF_SIZE
,
547 ath9k_hif_usb_reg_in_cb
, nskb
, 1);
549 ret
= usb_submit_urb(urb
, GFP_ATOMIC
);
559 skb_reset_tail_pointer(skb
);
562 ret
= usb_submit_urb(urb
, GFP_ATOMIC
);
572 static void ath9k_hif_usb_dealloc_tx_urbs(struct hif_device_usb
*hif_dev
)
574 struct tx_buf
*tx_buf
= NULL
, *tx_buf_tmp
= NULL
;
576 list_for_each_entry_safe(tx_buf
, tx_buf_tmp
,
577 &hif_dev
->tx
.tx_buf
, list
) {
578 usb_kill_urb(tx_buf
->urb
);
579 list_del(&tx_buf
->list
);
580 usb_free_urb(tx_buf
->urb
);
585 list_for_each_entry_safe(tx_buf
, tx_buf_tmp
,
586 &hif_dev
->tx
.tx_pending
, list
) {
587 usb_kill_urb(tx_buf
->urb
);
588 list_del(&tx_buf
->list
);
589 usb_free_urb(tx_buf
->urb
);
595 static int ath9k_hif_usb_alloc_tx_urbs(struct hif_device_usb
*hif_dev
)
597 struct tx_buf
*tx_buf
;
600 INIT_LIST_HEAD(&hif_dev
->tx
.tx_buf
);
601 INIT_LIST_HEAD(&hif_dev
->tx
.tx_pending
);
602 spin_lock_init(&hif_dev
->tx
.tx_lock
);
603 __skb_queue_head_init(&hif_dev
->tx
.tx_skb_queue
);
605 for (i
= 0; i
< MAX_TX_URB_NUM
; i
++) {
606 tx_buf
= kzalloc(sizeof(struct tx_buf
), GFP_KERNEL
);
610 tx_buf
->buf
= kzalloc(MAX_TX_BUF_SIZE
, GFP_KERNEL
);
614 tx_buf
->urb
= usb_alloc_urb(0, GFP_KERNEL
);
618 tx_buf
->hif_dev
= hif_dev
;
619 __skb_queue_head_init(&tx_buf
->skb_queue
);
621 list_add_tail(&tx_buf
->list
, &hif_dev
->tx
.tx_buf
);
624 hif_dev
->tx
.tx_buf_cnt
= MAX_TX_URB_NUM
;
632 ath9k_hif_usb_dealloc_tx_urbs(hif_dev
);
636 static void ath9k_hif_usb_dealloc_rx_urbs(struct hif_device_usb
*hif_dev
)
638 usb_kill_anchored_urbs(&hif_dev
->rx_submitted
);
641 static int ath9k_hif_usb_alloc_rx_urbs(struct hif_device_usb
*hif_dev
)
643 struct urb
*urb
= NULL
;
644 struct sk_buff
*skb
= NULL
;
647 init_usb_anchor(&hif_dev
->rx_submitted
);
648 spin_lock_init(&hif_dev
->rx_lock
);
650 for (i
= 0; i
< MAX_RX_URB_NUM
; i
++) {
653 urb
= usb_alloc_urb(0, GFP_KERNEL
);
659 /* Allocate buffer */
660 skb
= alloc_skb(MAX_RX_BUF_SIZE
, GFP_KERNEL
);
666 usb_fill_bulk_urb(urb
, hif_dev
->udev
,
667 usb_rcvbulkpipe(hif_dev
->udev
,
669 skb
->data
, MAX_RX_BUF_SIZE
,
670 ath9k_hif_usb_rx_cb
, skb
);
673 usb_anchor_urb(urb
, &hif_dev
->rx_submitted
);
676 ret
= usb_submit_urb(urb
, GFP_KERNEL
);
678 usb_unanchor_urb(urb
);
683 * Drop reference count.
684 * This ensures that the URB is freed when killing them.
696 ath9k_hif_usb_dealloc_rx_urbs(hif_dev
);
700 static void ath9k_hif_usb_dealloc_reg_in_urb(struct hif_device_usb
*hif_dev
)
702 if (hif_dev
->reg_in_urb
) {
703 usb_kill_urb(hif_dev
->reg_in_urb
);
704 if (hif_dev
->reg_in_urb
->context
)
705 kfree_skb((void *)hif_dev
->reg_in_urb
->context
);
706 usb_free_urb(hif_dev
->reg_in_urb
);
707 hif_dev
->reg_in_urb
= NULL
;
711 static int ath9k_hif_usb_alloc_reg_in_urb(struct hif_device_usb
*hif_dev
)
715 hif_dev
->reg_in_urb
= usb_alloc_urb(0, GFP_KERNEL
);
716 if (hif_dev
->reg_in_urb
== NULL
)
719 skb
= alloc_skb(MAX_REG_IN_BUF_SIZE
, GFP_KERNEL
);
723 usb_fill_int_urb(hif_dev
->reg_in_urb
, hif_dev
->udev
,
724 usb_rcvbulkpipe(hif_dev
->udev
,
726 skb
->data
, MAX_REG_IN_BUF_SIZE
,
727 ath9k_hif_usb_reg_in_cb
, skb
, 1);
729 if (usb_submit_urb(hif_dev
->reg_in_urb
, GFP_KERNEL
) != 0)
735 ath9k_hif_usb_dealloc_reg_in_urb(hif_dev
);
739 static int ath9k_hif_usb_alloc_urbs(struct hif_device_usb
*hif_dev
)
742 init_usb_anchor(&hif_dev
->regout_submitted
);
745 if (ath9k_hif_usb_alloc_tx_urbs(hif_dev
) < 0)
749 if (ath9k_hif_usb_alloc_rx_urbs(hif_dev
) < 0)
753 if (ath9k_hif_usb_alloc_reg_in_urb(hif_dev
) < 0)
758 ath9k_hif_usb_dealloc_rx_urbs(hif_dev
);
760 ath9k_hif_usb_dealloc_tx_urbs(hif_dev
);
765 static void ath9k_hif_usb_dealloc_urbs(struct hif_device_usb
*hif_dev
)
767 usb_kill_anchored_urbs(&hif_dev
->regout_submitted
);
768 ath9k_hif_usb_dealloc_reg_in_urb(hif_dev
);
769 ath9k_hif_usb_dealloc_tx_urbs(hif_dev
);
770 ath9k_hif_usb_dealloc_rx_urbs(hif_dev
);
773 static int ath9k_hif_usb_download_fw(struct hif_device_usb
*hif_dev
)
776 const void *data
= hif_dev
->firmware
->data
;
777 size_t len
= hif_dev
->firmware
->size
;
778 u32 addr
= AR9271_FIRMWARE
;
779 u8
*buf
= kzalloc(4096, GFP_KERNEL
);
786 transfer
= min_t(int, len
, 4096);
787 memcpy(buf
, data
, transfer
);
789 err
= usb_control_msg(hif_dev
->udev
,
790 usb_sndctrlpipe(hif_dev
->udev
, 0),
791 FIRMWARE_DOWNLOAD
, 0x40 | USB_DIR_OUT
,
792 addr
>> 8, 0, buf
, transfer
, HZ
);
804 switch (hif_dev
->device_id
) {
808 firm_offset
= AR7010_FIRMWARE_TEXT
;
811 firm_offset
= AR9271_FIRMWARE_TEXT
;
816 * Issue FW download complete command to firmware.
818 err
= usb_control_msg(hif_dev
->udev
, usb_sndctrlpipe(hif_dev
->udev
, 0),
819 FIRMWARE_DOWNLOAD_COMP
,
821 firm_offset
>> 8, 0, NULL
, 0, HZ
);
825 dev_info(&hif_dev
->udev
->dev
, "ath9k_htc: Transferred FW: %s, size: %ld\n",
826 hif_dev
->fw_name
, (unsigned long) hif_dev
->firmware
->size
);
831 static int ath9k_hif_usb_dev_init(struct hif_device_usb
*hif_dev
)
834 struct usb_host_interface
*alt
= &hif_dev
->interface
->altsetting
[0];
835 struct usb_endpoint_descriptor
*endp
;
837 /* Request firmware */
838 ret
= request_firmware(&hif_dev
->firmware
, hif_dev
->fw_name
,
839 &hif_dev
->udev
->dev
);
841 dev_err(&hif_dev
->udev
->dev
,
842 "ath9k_htc: Firmware - %s not found\n", hif_dev
->fw_name
);
847 ret
= ath9k_hif_usb_alloc_urbs(hif_dev
);
849 dev_err(&hif_dev
->udev
->dev
,
850 "ath9k_htc: Unable to allocate URBs\n");
854 /* Download firmware */
855 ret
= ath9k_hif_usb_download_fw(hif_dev
);
857 dev_err(&hif_dev
->udev
->dev
,
858 "ath9k_htc: Firmware - %s download failed\n",
860 goto err_fw_download
;
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.
867 for (idx
= 0; idx
< alt
->desc
.bNumEndpoints
; idx
++) {
868 endp
= &alt
->endpoint
[idx
].desc
;
869 if (((endp
->bEndpointAddress
& USB_ENDPOINT_NUMBER_MASK
)
871 ((endp
->bmAttributes
& USB_ENDPOINT_XFERTYPE_MASK
)
872 == USB_ENDPOINT_XFER_INT
)) {
873 endp
->bmAttributes
&= ~USB_ENDPOINT_XFERTYPE_MASK
;
874 endp
->bmAttributes
|= USB_ENDPOINT_XFER_BULK
;
882 ath9k_hif_usb_dealloc_urbs(hif_dev
);
884 release_firmware(hif_dev
->firmware
);
886 hif_dev
->firmware
= NULL
;
890 static void ath9k_hif_usb_dev_deinit(struct hif_device_usb
*hif_dev
)
892 ath9k_hif_usb_dealloc_urbs(hif_dev
);
893 if (hif_dev
->firmware
)
894 release_firmware(hif_dev
->firmware
);
897 static int ath9k_hif_usb_probe(struct usb_interface
*interface
,
898 const struct usb_device_id
*id
)
900 struct usb_device
*udev
= interface_to_usbdev(interface
);
901 struct hif_device_usb
*hif_dev
;
904 hif_dev
= kzalloc(sizeof(struct hif_device_usb
), GFP_KERNEL
);
911 hif_dev
->udev
= udev
;
912 hif_dev
->interface
= interface
;
913 hif_dev
->device_id
= id
->idProduct
;
915 udev
->reset_resume
= 1;
917 usb_set_intfdata(interface
, hif_dev
);
919 hif_dev
->htc_handle
= ath9k_htc_hw_alloc(hif_dev
, &hif_usb
,
920 &hif_dev
->udev
->dev
);
921 if (hif_dev
->htc_handle
== NULL
) {
923 goto err_htc_hw_alloc
;
926 /* Find out which firmware to load */
928 switch(hif_dev
->device_id
) {
932 if (le16_to_cpu(udev
->descriptor
.bcdDevice
) == 0x0202)
933 hif_dev
->fw_name
= FIRMWARE_AR7010_1_1
;
935 hif_dev
->fw_name
= FIRMWARE_AR7010
;
938 hif_dev
->fw_name
= FIRMWARE_AR9271
;
942 ret
= ath9k_hif_usb_dev_init(hif_dev
);
945 goto err_hif_init_usb
;
948 ret
= ath9k_htc_hw_init(hif_dev
->htc_handle
,
949 &hif_dev
->udev
->dev
, hif_dev
->device_id
,
950 hif_dev
->udev
->product
);
953 goto err_htc_hw_init
;
956 dev_info(&hif_dev
->udev
->dev
, "ath9k_htc: USB layer initialized\n");
961 ath9k_hif_usb_dev_deinit(hif_dev
);
963 ath9k_htc_hw_free(hif_dev
->htc_handle
);
965 usb_set_intfdata(interface
, NULL
);
972 static void ath9k_hif_usb_reboot(struct usb_device
*udev
)
974 u32 reboot_cmd
= 0xffffffff;
978 buf
= kmemdup(&reboot_cmd
, 4, GFP_KERNEL
);
982 ret
= usb_bulk_msg(udev
, usb_sndbulkpipe(udev
, USB_REG_OUT_PIPE
),
985 dev_err(&udev
->dev
, "ath9k_htc: USB reboot failed\n");
990 static void ath9k_hif_usb_disconnect(struct usb_interface
*interface
)
992 struct usb_device
*udev
= interface_to_usbdev(interface
);
993 struct hif_device_usb
*hif_dev
=
994 (struct hif_device_usb
*) usb_get_intfdata(interface
);
997 ath9k_htc_hw_deinit(hif_dev
->htc_handle
,
998 (udev
->state
== USB_STATE_NOTATTACHED
) ? true : false);
999 ath9k_htc_hw_free(hif_dev
->htc_handle
);
1000 ath9k_hif_usb_dev_deinit(hif_dev
);
1001 usb_set_intfdata(interface
, NULL
);
1004 if (hif_dev
->flags
& HIF_USB_START
)
1005 ath9k_hif_usb_reboot(udev
);
1008 dev_info(&udev
->dev
, "ath9k_htc: USB layer deinitialized\n");
1013 static int ath9k_hif_usb_suspend(struct usb_interface
*interface
,
1014 pm_message_t message
)
1016 struct hif_device_usb
*hif_dev
=
1017 (struct hif_device_usb
*) usb_get_intfdata(interface
);
1019 ath9k_hif_usb_dealloc_urbs(hif_dev
);
1024 static int ath9k_hif_usb_resume(struct usb_interface
*interface
)
1026 struct hif_device_usb
*hif_dev
=
1027 (struct hif_device_usb
*) usb_get_intfdata(interface
);
1030 ret
= ath9k_hif_usb_alloc_urbs(hif_dev
);
1034 if (hif_dev
->firmware
) {
1035 ret
= ath9k_hif_usb_download_fw(hif_dev
);
1039 ath9k_hif_usb_dealloc_urbs(hif_dev
);
1045 ret
= ath9k_htc_resume(hif_dev
->htc_handle
);
1053 ath9k_hif_usb_dealloc_urbs(hif_dev
);
1059 static struct usb_driver ath9k_hif_usb_driver
= {
1060 .name
= "ath9k_hif_usb",
1061 .probe
= ath9k_hif_usb_probe
,
1062 .disconnect
= ath9k_hif_usb_disconnect
,
1064 .suspend
= ath9k_hif_usb_suspend
,
1065 .resume
= ath9k_hif_usb_resume
,
1066 .reset_resume
= ath9k_hif_usb_resume
,
1068 .id_table
= ath9k_hif_usb_ids
,
1072 int ath9k_hif_usb_init(void)
1074 return usb_register(&ath9k_hif_usb_driver
);
1077 void ath9k_hif_usb_exit(void)
1079 usb_deregister(&ath9k_hif_usb_driver
);