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(0x0846, 0x9030) }, /* Netgear N150 */
32 { USB_DEVICE(0x07D1, 0x3A10) }, /* Dlink Wireless 150 */
33 { USB_DEVICE(0x13D3, 0x3327) }, /* Azurewave */
34 { USB_DEVICE(0x13D3, 0x3328) }, /* Azurewave */
35 { USB_DEVICE(0x13D3, 0x3346) }, /* IMC Networks */
36 { USB_DEVICE(0x13D3, 0x3348) }, /* Azurewave */
37 { USB_DEVICE(0x13D3, 0x3349) }, /* Azurewave */
38 { USB_DEVICE(0x13D3, 0x3350) }, /* Azurewave */
39 { USB_DEVICE(0x04CA, 0x4605) }, /* Liteon */
40 { USB_DEVICE(0x040D, 0x3801) }, /* VIA */
41 { USB_DEVICE(0x0cf3, 0xb003) }, /* Ubiquiti WifiStation Ext */
43 { USB_DEVICE(0x0cf3, 0x7015),
44 .driver_info
= AR9287_USB
}, /* Atheros */
45 { USB_DEVICE(0x1668, 0x1200),
46 .driver_info
= AR9287_USB
}, /* Verizon */
48 { USB_DEVICE(0x0cf3, 0x7010),
49 .driver_info
= AR9280_USB
}, /* Atheros */
50 { USB_DEVICE(0x0846, 0x9018),
51 .driver_info
= AR9280_USB
}, /* Netgear WNDA3200 */
52 { USB_DEVICE(0x083A, 0xA704),
53 .driver_info
= AR9280_USB
}, /* SMC Networks */
58 MODULE_DEVICE_TABLE(usb
, ath9k_hif_usb_ids
);
60 static int __hif_usb_tx(struct hif_device_usb
*hif_dev
);
62 static void hif_usb_regout_cb(struct urb
*urb
)
64 struct cmd_buf
*cmd
= (struct cmd_buf
*)urb
->context
;
66 switch (urb
->status
) {
79 ath9k_htc_txcompletion_cb(cmd
->hif_dev
->htc_handle
,
90 static int hif_usb_send_regout(struct hif_device_usb
*hif_dev
,
97 urb
= usb_alloc_urb(0, GFP_KERNEL
);
101 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
108 cmd
->hif_dev
= hif_dev
;
110 usb_fill_bulk_urb(urb
, hif_dev
->udev
,
111 usb_sndbulkpipe(hif_dev
->udev
, USB_REG_OUT_PIPE
),
113 hif_usb_regout_cb
, cmd
);
115 usb_anchor_urb(urb
, &hif_dev
->regout_submitted
);
116 ret
= usb_submit_urb(urb
, GFP_KERNEL
);
118 usb_unanchor_urb(urb
);
126 static inline void ath9k_skb_queue_purge(struct hif_device_usb
*hif_dev
,
127 struct sk_buff_head
*list
)
131 while ((skb
= __skb_dequeue(list
)) != NULL
) {
132 dev_kfree_skb_any(skb
);
133 TX_STAT_INC(skb_dropped
);
137 static void hif_usb_tx_cb(struct urb
*urb
)
139 struct tx_buf
*tx_buf
= (struct tx_buf
*) urb
->context
;
140 struct hif_device_usb
*hif_dev
;
143 if (!tx_buf
|| !tx_buf
->hif_dev
)
146 hif_dev
= tx_buf
->hif_dev
;
148 switch (urb
->status
) {
156 * The URB has been killed, free the SKBs.
158 ath9k_skb_queue_purge(hif_dev
, &tx_buf
->skb_queue
);
161 * If the URBs are being flushed, no need to add this
162 * URB to the free list.
164 spin_lock(&hif_dev
->tx
.tx_lock
);
165 if (hif_dev
->tx
.flags
& HIF_USB_TX_FLUSH
) {
166 spin_unlock(&hif_dev
->tx
.tx_lock
);
169 spin_unlock(&hif_dev
->tx
.tx_lock
);
172 * In the stop() case, this URB has to be added to
181 * Check if TX has been stopped, this is needed because
182 * this CB could have been invoked just after the TX lock
183 * was released in hif_stop() and kill_urb() hasn't been
186 spin_lock(&hif_dev
->tx
.tx_lock
);
187 if (hif_dev
->tx
.flags
& HIF_USB_TX_STOP
) {
188 spin_unlock(&hif_dev
->tx
.tx_lock
);
189 ath9k_skb_queue_purge(hif_dev
, &tx_buf
->skb_queue
);
192 spin_unlock(&hif_dev
->tx
.tx_lock
);
194 /* Complete the queued SKBs. */
195 while ((skb
= __skb_dequeue(&tx_buf
->skb_queue
)) != NULL
) {
196 ath9k_htc_txcompletion_cb(hif_dev
->htc_handle
,
198 TX_STAT_INC(skb_completed
);
202 /* Re-initialize the SKB queue */
203 tx_buf
->len
= tx_buf
->offset
= 0;
204 __skb_queue_head_init(&tx_buf
->skb_queue
);
206 /* Add this TX buffer to the free list */
207 spin_lock(&hif_dev
->tx
.tx_lock
);
208 list_move_tail(&tx_buf
->list
, &hif_dev
->tx
.tx_buf
);
209 hif_dev
->tx
.tx_buf_cnt
++;
210 if (!(hif_dev
->tx
.flags
& HIF_USB_TX_STOP
))
211 __hif_usb_tx(hif_dev
); /* Check for pending SKBs */
212 TX_STAT_INC(buf_completed
);
213 spin_unlock(&hif_dev
->tx
.tx_lock
);
216 /* TX lock has to be taken */
217 static int __hif_usb_tx(struct hif_device_usb
*hif_dev
)
219 struct tx_buf
*tx_buf
= NULL
;
220 struct sk_buff
*nskb
= NULL
;
222 u16
*hdr
, tx_skb_cnt
= 0;
225 if (hif_dev
->tx
.tx_skb_cnt
== 0)
228 /* Check if a free TX buffer is available */
229 if (list_empty(&hif_dev
->tx
.tx_buf
))
232 tx_buf
= list_first_entry(&hif_dev
->tx
.tx_buf
, struct tx_buf
, list
);
233 list_move_tail(&tx_buf
->list
, &hif_dev
->tx
.tx_pending
);
234 hif_dev
->tx
.tx_buf_cnt
--;
236 tx_skb_cnt
= min_t(u16
, hif_dev
->tx
.tx_skb_cnt
, MAX_TX_AGGR_NUM
);
238 for (i
= 0; i
< tx_skb_cnt
; i
++) {
239 nskb
= __skb_dequeue(&hif_dev
->tx
.tx_skb_queue
);
241 /* Should never be NULL */
244 hif_dev
->tx
.tx_skb_cnt
--;
247 buf
+= tx_buf
->offset
;
250 *hdr
++ = ATH_USB_TX_STREAM_MODE_TAG
;
252 memcpy(buf
, nskb
->data
, nskb
->len
);
253 tx_buf
->len
= nskb
->len
+ 4;
255 if (i
< (tx_skb_cnt
- 1))
256 tx_buf
->offset
+= (((tx_buf
->len
- 1) / 4) + 1) * 4;
258 if (i
== (tx_skb_cnt
- 1))
259 tx_buf
->len
+= tx_buf
->offset
;
261 __skb_queue_tail(&tx_buf
->skb_queue
, nskb
);
262 TX_STAT_INC(skb_queued
);
265 usb_fill_bulk_urb(tx_buf
->urb
, hif_dev
->udev
,
266 usb_sndbulkpipe(hif_dev
->udev
, USB_WLAN_TX_PIPE
),
267 tx_buf
->buf
, tx_buf
->len
,
268 hif_usb_tx_cb
, tx_buf
);
270 ret
= usb_submit_urb(tx_buf
->urb
, GFP_ATOMIC
);
272 tx_buf
->len
= tx_buf
->offset
= 0;
273 ath9k_skb_queue_purge(hif_dev
, &tx_buf
->skb_queue
);
274 __skb_queue_head_init(&tx_buf
->skb_queue
);
275 list_move_tail(&tx_buf
->list
, &hif_dev
->tx
.tx_buf
);
276 hif_dev
->tx
.tx_buf_cnt
++;
280 TX_STAT_INC(buf_queued
);
285 static int hif_usb_send_tx(struct hif_device_usb
*hif_dev
, struct sk_buff
*skb
,
286 struct ath9k_htc_tx_ctl
*tx_ctl
)
290 spin_lock_irqsave(&hif_dev
->tx
.tx_lock
, flags
);
292 if (hif_dev
->tx
.flags
& HIF_USB_TX_STOP
) {
293 spin_unlock_irqrestore(&hif_dev
->tx
.tx_lock
, flags
);
297 /* Check if the max queue count has been reached */
298 if (hif_dev
->tx
.tx_skb_cnt
> MAX_TX_BUF_NUM
) {
299 spin_unlock_irqrestore(&hif_dev
->tx
.tx_lock
, flags
);
303 __skb_queue_tail(&hif_dev
->tx
.tx_skb_queue
, skb
);
304 hif_dev
->tx
.tx_skb_cnt
++;
306 /* Send normal frames immediately */
307 if (!tx_ctl
|| (tx_ctl
&& (tx_ctl
->type
== ATH9K_HTC_NORMAL
)))
308 __hif_usb_tx(hif_dev
);
310 /* Check if AMPDUs have to be sent immediately */
311 if (tx_ctl
&& (tx_ctl
->type
== ATH9K_HTC_AMPDU
) &&
312 (hif_dev
->tx
.tx_buf_cnt
== MAX_TX_URB_NUM
) &&
313 (hif_dev
->tx
.tx_skb_cnt
< 2)) {
314 __hif_usb_tx(hif_dev
);
317 spin_unlock_irqrestore(&hif_dev
->tx
.tx_lock
, flags
);
322 static void hif_usb_start(void *hif_handle
, u8 pipe_id
)
324 struct hif_device_usb
*hif_dev
= (struct hif_device_usb
*)hif_handle
;
327 hif_dev
->flags
|= HIF_USB_START
;
329 spin_lock_irqsave(&hif_dev
->tx
.tx_lock
, flags
);
330 hif_dev
->tx
.flags
&= ~HIF_USB_TX_STOP
;
331 spin_unlock_irqrestore(&hif_dev
->tx
.tx_lock
, flags
);
334 static void hif_usb_stop(void *hif_handle
, u8 pipe_id
)
336 struct hif_device_usb
*hif_dev
= (struct hif_device_usb
*)hif_handle
;
337 struct tx_buf
*tx_buf
= NULL
, *tx_buf_tmp
= NULL
;
340 spin_lock_irqsave(&hif_dev
->tx
.tx_lock
, flags
);
341 ath9k_skb_queue_purge(hif_dev
, &hif_dev
->tx
.tx_skb_queue
);
342 hif_dev
->tx
.tx_skb_cnt
= 0;
343 hif_dev
->tx
.flags
|= HIF_USB_TX_STOP
;
344 spin_unlock_irqrestore(&hif_dev
->tx
.tx_lock
, flags
);
346 /* The pending URBs have to be canceled. */
347 list_for_each_entry_safe(tx_buf
, tx_buf_tmp
,
348 &hif_dev
->tx
.tx_pending
, list
) {
349 usb_kill_urb(tx_buf
->urb
);
353 static int hif_usb_send(void *hif_handle
, u8 pipe_id
, struct sk_buff
*skb
,
354 struct ath9k_htc_tx_ctl
*tx_ctl
)
356 struct hif_device_usb
*hif_dev
= (struct hif_device_usb
*)hif_handle
;
360 case USB_WLAN_TX_PIPE
:
361 ret
= hif_usb_send_tx(hif_dev
, skb
, tx_ctl
);
363 case USB_REG_OUT_PIPE
:
364 ret
= hif_usb_send_regout(hif_dev
, skb
);
367 dev_err(&hif_dev
->udev
->dev
,
368 "ath9k_htc: Invalid TX pipe: %d\n", pipe_id
);
376 static struct ath9k_htc_hif hif_usb
= {
377 .transport
= ATH9K_HIF_USB
,
378 .name
= "ath9k_hif_usb",
380 .control_ul_pipe
= USB_REG_OUT_PIPE
,
381 .control_dl_pipe
= USB_REG_IN_PIPE
,
383 .start
= hif_usb_start
,
384 .stop
= hif_usb_stop
,
385 .send
= hif_usb_send
,
388 static void ath9k_hif_usb_rx_stream(struct hif_device_usb
*hif_dev
,
391 struct sk_buff
*nskb
, *skb_pool
[MAX_PKT_NUM_IN_TRANSFER
];
392 int index
= 0, i
= 0, len
= skb
->len
;
393 int rx_remain_len
, rx_pkt_len
;
397 spin_lock(&hif_dev
->rx_lock
);
399 rx_remain_len
= hif_dev
->rx_remain_len
;
400 rx_pkt_len
= hif_dev
->rx_transfer_len
;
402 if (rx_remain_len
!= 0) {
403 struct sk_buff
*remain_skb
= hif_dev
->remain_skb
;
406 ptr
= (u8
*) remain_skb
->data
;
408 index
= rx_remain_len
;
409 rx_remain_len
-= hif_dev
->rx_pad_len
;
412 memcpy(ptr
, skb
->data
, rx_remain_len
);
414 rx_pkt_len
+= rx_remain_len
;
415 hif_dev
->rx_remain_len
= 0;
416 skb_put(remain_skb
, rx_pkt_len
);
418 skb_pool
[pool_index
++] = remain_skb
;
421 index
= rx_remain_len
;
425 spin_unlock(&hif_dev
->rx_lock
);
427 while (index
< len
) {
433 ptr
= (u8
*) skb
->data
;
435 pkt_len
= ptr
[index
] + (ptr
[index
+1] << 8);
436 pkt_tag
= ptr
[index
+2] + (ptr
[index
+3] << 8);
438 if (pkt_tag
!= ATH_USB_RX_STREAM_MODE_TAG
) {
439 RX_STAT_INC(skb_dropped
);
443 pad_len
= 4 - (pkt_len
& 0x3);
448 index
= index
+ 4 + pkt_len
+ pad_len
;
450 if (index
> MAX_RX_BUF_SIZE
) {
451 spin_lock(&hif_dev
->rx_lock
);
452 hif_dev
->rx_remain_len
= index
- MAX_RX_BUF_SIZE
;
453 hif_dev
->rx_transfer_len
=
454 MAX_RX_BUF_SIZE
- chk_idx
- 4;
455 hif_dev
->rx_pad_len
= pad_len
;
457 nskb
= __dev_alloc_skb(pkt_len
+ 32, GFP_ATOMIC
);
459 dev_err(&hif_dev
->udev
->dev
,
460 "ath9k_htc: RX memory allocation error\n");
461 spin_unlock(&hif_dev
->rx_lock
);
464 skb_reserve(nskb
, 32);
465 RX_STAT_INC(skb_allocated
);
467 memcpy(nskb
->data
, &(skb
->data
[chk_idx
+4]),
468 hif_dev
->rx_transfer_len
);
470 /* Record the buffer pointer */
471 hif_dev
->remain_skb
= nskb
;
472 spin_unlock(&hif_dev
->rx_lock
);
474 nskb
= __dev_alloc_skb(pkt_len
+ 32, GFP_ATOMIC
);
476 dev_err(&hif_dev
->udev
->dev
,
477 "ath9k_htc: RX memory allocation error\n");
480 skb_reserve(nskb
, 32);
481 RX_STAT_INC(skb_allocated
);
483 memcpy(nskb
->data
, &(skb
->data
[chk_idx
+4]), pkt_len
);
484 skb_put(nskb
, pkt_len
);
485 skb_pool
[pool_index
++] = nskb
;
490 for (i
= 0; i
< pool_index
; i
++) {
491 ath9k_htc_rx_msg(hif_dev
->htc_handle
, skb_pool
[i
],
492 skb_pool
[i
]->len
, USB_WLAN_RX_PIPE
);
493 RX_STAT_INC(skb_completed
);
497 static void ath9k_hif_usb_rx_cb(struct urb
*urb
)
499 struct sk_buff
*skb
= (struct sk_buff
*) urb
->context
;
500 struct hif_device_usb
*hif_dev
=
501 usb_get_intfdata(usb_ifnum_to_if(urb
->dev
, 0));
510 switch (urb
->status
) {
522 if (likely(urb
->actual_length
!= 0)) {
523 skb_put(skb
, urb
->actual_length
);
524 ath9k_hif_usb_rx_stream(hif_dev
, skb
);
528 skb_reset_tail_pointer(skb
);
531 usb_anchor_urb(urb
, &hif_dev
->rx_submitted
);
532 ret
= usb_submit_urb(urb
, GFP_ATOMIC
);
534 usb_unanchor_urb(urb
);
543 static void ath9k_hif_usb_reg_in_cb(struct urb
*urb
)
545 struct sk_buff
*skb
= (struct sk_buff
*) urb
->context
;
546 struct sk_buff
*nskb
;
547 struct hif_device_usb
*hif_dev
=
548 usb_get_intfdata(usb_ifnum_to_if(urb
->dev
, 0));
557 switch (urb
->status
) {
569 if (likely(urb
->actual_length
!= 0)) {
570 skb_put(skb
, urb
->actual_length
);
572 /* Process the command first */
573 ath9k_htc_rx_msg(hif_dev
->htc_handle
, skb
,
574 skb
->len
, USB_REG_IN_PIPE
);
577 nskb
= alloc_skb(MAX_REG_IN_BUF_SIZE
, GFP_ATOMIC
);
579 dev_err(&hif_dev
->udev
->dev
,
580 "ath9k_htc: REG_IN memory allocation failure\n");
585 usb_fill_bulk_urb(urb
, hif_dev
->udev
,
586 usb_rcvbulkpipe(hif_dev
->udev
,
588 nskb
->data
, MAX_REG_IN_BUF_SIZE
,
589 ath9k_hif_usb_reg_in_cb
, nskb
);
591 ret
= usb_submit_urb(urb
, GFP_ATOMIC
);
601 skb_reset_tail_pointer(skb
);
604 ret
= usb_submit_urb(urb
, GFP_ATOMIC
);
614 static void ath9k_hif_usb_dealloc_tx_urbs(struct hif_device_usb
*hif_dev
)
616 struct tx_buf
*tx_buf
= NULL
, *tx_buf_tmp
= NULL
;
619 list_for_each_entry_safe(tx_buf
, tx_buf_tmp
,
620 &hif_dev
->tx
.tx_buf
, list
) {
621 usb_kill_urb(tx_buf
->urb
);
622 list_del(&tx_buf
->list
);
623 usb_free_urb(tx_buf
->urb
);
628 spin_lock_irqsave(&hif_dev
->tx
.tx_lock
, flags
);
629 hif_dev
->tx
.flags
|= HIF_USB_TX_FLUSH
;
630 spin_unlock_irqrestore(&hif_dev
->tx
.tx_lock
, flags
);
632 list_for_each_entry_safe(tx_buf
, tx_buf_tmp
,
633 &hif_dev
->tx
.tx_pending
, list
) {
634 usb_kill_urb(tx_buf
->urb
);
635 list_del(&tx_buf
->list
);
636 usb_free_urb(tx_buf
->urb
);
642 static int ath9k_hif_usb_alloc_tx_urbs(struct hif_device_usb
*hif_dev
)
644 struct tx_buf
*tx_buf
;
647 INIT_LIST_HEAD(&hif_dev
->tx
.tx_buf
);
648 INIT_LIST_HEAD(&hif_dev
->tx
.tx_pending
);
649 spin_lock_init(&hif_dev
->tx
.tx_lock
);
650 __skb_queue_head_init(&hif_dev
->tx
.tx_skb_queue
);
652 for (i
= 0; i
< MAX_TX_URB_NUM
; i
++) {
653 tx_buf
= kzalloc(sizeof(struct tx_buf
), GFP_KERNEL
);
657 tx_buf
->buf
= kzalloc(MAX_TX_BUF_SIZE
, GFP_KERNEL
);
661 tx_buf
->urb
= usb_alloc_urb(0, GFP_KERNEL
);
665 tx_buf
->hif_dev
= hif_dev
;
666 __skb_queue_head_init(&tx_buf
->skb_queue
);
668 list_add_tail(&tx_buf
->list
, &hif_dev
->tx
.tx_buf
);
671 hif_dev
->tx
.tx_buf_cnt
= MAX_TX_URB_NUM
;
679 ath9k_hif_usb_dealloc_tx_urbs(hif_dev
);
683 static void ath9k_hif_usb_dealloc_rx_urbs(struct hif_device_usb
*hif_dev
)
685 usb_kill_anchored_urbs(&hif_dev
->rx_submitted
);
688 static int ath9k_hif_usb_alloc_rx_urbs(struct hif_device_usb
*hif_dev
)
690 struct urb
*urb
= NULL
;
691 struct sk_buff
*skb
= NULL
;
694 init_usb_anchor(&hif_dev
->rx_submitted
);
695 spin_lock_init(&hif_dev
->rx_lock
);
697 for (i
= 0; i
< MAX_RX_URB_NUM
; i
++) {
700 urb
= usb_alloc_urb(0, GFP_KERNEL
);
706 /* Allocate buffer */
707 skb
= alloc_skb(MAX_RX_BUF_SIZE
, GFP_KERNEL
);
713 usb_fill_bulk_urb(urb
, hif_dev
->udev
,
714 usb_rcvbulkpipe(hif_dev
->udev
,
716 skb
->data
, MAX_RX_BUF_SIZE
,
717 ath9k_hif_usb_rx_cb
, skb
);
720 usb_anchor_urb(urb
, &hif_dev
->rx_submitted
);
723 ret
= usb_submit_urb(urb
, GFP_KERNEL
);
725 usb_unanchor_urb(urb
);
730 * Drop reference count.
731 * This ensures that the URB is freed when killing them.
743 ath9k_hif_usb_dealloc_rx_urbs(hif_dev
);
747 static void ath9k_hif_usb_dealloc_reg_in_urb(struct hif_device_usb
*hif_dev
)
749 if (hif_dev
->reg_in_urb
) {
750 usb_kill_urb(hif_dev
->reg_in_urb
);
751 if (hif_dev
->reg_in_urb
->context
)
752 kfree_skb((void *)hif_dev
->reg_in_urb
->context
);
753 usb_free_urb(hif_dev
->reg_in_urb
);
754 hif_dev
->reg_in_urb
= NULL
;
758 static int ath9k_hif_usb_alloc_reg_in_urb(struct hif_device_usb
*hif_dev
)
762 hif_dev
->reg_in_urb
= usb_alloc_urb(0, GFP_KERNEL
);
763 if (hif_dev
->reg_in_urb
== NULL
)
766 skb
= alloc_skb(MAX_REG_IN_BUF_SIZE
, GFP_KERNEL
);
770 usb_fill_bulk_urb(hif_dev
->reg_in_urb
, hif_dev
->udev
,
771 usb_rcvbulkpipe(hif_dev
->udev
,
773 skb
->data
, MAX_REG_IN_BUF_SIZE
,
774 ath9k_hif_usb_reg_in_cb
, skb
);
776 if (usb_submit_urb(hif_dev
->reg_in_urb
, GFP_KERNEL
) != 0)
782 ath9k_hif_usb_dealloc_reg_in_urb(hif_dev
);
786 static int ath9k_hif_usb_alloc_urbs(struct hif_device_usb
*hif_dev
)
789 init_usb_anchor(&hif_dev
->regout_submitted
);
792 if (ath9k_hif_usb_alloc_tx_urbs(hif_dev
) < 0)
796 if (ath9k_hif_usb_alloc_rx_urbs(hif_dev
) < 0)
800 if (ath9k_hif_usb_alloc_reg_in_urb(hif_dev
) < 0)
805 ath9k_hif_usb_dealloc_rx_urbs(hif_dev
);
807 ath9k_hif_usb_dealloc_tx_urbs(hif_dev
);
812 static void ath9k_hif_usb_dealloc_urbs(struct hif_device_usb
*hif_dev
)
814 usb_kill_anchored_urbs(&hif_dev
->regout_submitted
);
815 ath9k_hif_usb_dealloc_reg_in_urb(hif_dev
);
816 ath9k_hif_usb_dealloc_tx_urbs(hif_dev
);
817 ath9k_hif_usb_dealloc_rx_urbs(hif_dev
);
820 static int ath9k_hif_usb_download_fw(struct hif_device_usb
*hif_dev
,
824 const void *data
= hif_dev
->firmware
->data
;
825 size_t len
= hif_dev
->firmware
->size
;
826 u32 addr
= AR9271_FIRMWARE
;
827 u8
*buf
= kzalloc(4096, GFP_KERNEL
);
834 transfer
= min_t(int, len
, 4096);
835 memcpy(buf
, data
, transfer
);
837 err
= usb_control_msg(hif_dev
->udev
,
838 usb_sndctrlpipe(hif_dev
->udev
, 0),
839 FIRMWARE_DOWNLOAD
, 0x40 | USB_DIR_OUT
,
840 addr
>> 8, 0, buf
, transfer
, HZ
);
852 if (IS_AR7010_DEVICE(drv_info
))
853 firm_offset
= AR7010_FIRMWARE_TEXT
;
855 firm_offset
= AR9271_FIRMWARE_TEXT
;
858 * Issue FW download complete command to firmware.
860 err
= usb_control_msg(hif_dev
->udev
, usb_sndctrlpipe(hif_dev
->udev
, 0),
861 FIRMWARE_DOWNLOAD_COMP
,
863 firm_offset
>> 8, 0, NULL
, 0, HZ
);
867 dev_info(&hif_dev
->udev
->dev
, "ath9k_htc: Transferred FW: %s, size: %ld\n",
868 hif_dev
->fw_name
, (unsigned long) hif_dev
->firmware
->size
);
873 static int ath9k_hif_usb_dev_init(struct hif_device_usb
*hif_dev
, u32 drv_info
)
876 struct usb_host_interface
*alt
= &hif_dev
->interface
->altsetting
[0];
877 struct usb_endpoint_descriptor
*endp
;
879 /* Request firmware */
880 ret
= request_firmware(&hif_dev
->firmware
, hif_dev
->fw_name
,
881 &hif_dev
->udev
->dev
);
883 dev_err(&hif_dev
->udev
->dev
,
884 "ath9k_htc: Firmware - %s not found\n", hif_dev
->fw_name
);
888 /* Download firmware */
889 ret
= ath9k_hif_usb_download_fw(hif_dev
, drv_info
);
891 dev_err(&hif_dev
->udev
->dev
,
892 "ath9k_htc: Firmware - %s download failed\n",
894 goto err_fw_download
;
897 /* On downloading the firmware to the target, the USB descriptor of EP4
898 * is 'patched' to change the type of the endpoint to Bulk. This will
899 * bring down CPU usage during the scan period.
901 for (idx
= 0; idx
< alt
->desc
.bNumEndpoints
; idx
++) {
902 endp
= &alt
->endpoint
[idx
].desc
;
903 if ((endp
->bmAttributes
& USB_ENDPOINT_XFERTYPE_MASK
)
904 == USB_ENDPOINT_XFER_INT
) {
905 endp
->bmAttributes
&= ~USB_ENDPOINT_XFERTYPE_MASK
;
906 endp
->bmAttributes
|= USB_ENDPOINT_XFER_BULK
;
912 ret
= ath9k_hif_usb_alloc_urbs(hif_dev
);
914 dev_err(&hif_dev
->udev
->dev
,
915 "ath9k_htc: Unable to allocate URBs\n");
922 ath9k_hif_usb_dealloc_urbs(hif_dev
);
924 release_firmware(hif_dev
->firmware
);
926 hif_dev
->firmware
= NULL
;
930 static void ath9k_hif_usb_dev_deinit(struct hif_device_usb
*hif_dev
)
932 ath9k_hif_usb_dealloc_urbs(hif_dev
);
933 if (hif_dev
->firmware
)
934 release_firmware(hif_dev
->firmware
);
937 static int ath9k_hif_usb_probe(struct usb_interface
*interface
,
938 const struct usb_device_id
*id
)
940 struct usb_device
*udev
= interface_to_usbdev(interface
);
941 struct hif_device_usb
*hif_dev
;
944 hif_dev
= kzalloc(sizeof(struct hif_device_usb
), GFP_KERNEL
);
951 hif_dev
->udev
= udev
;
952 hif_dev
->interface
= interface
;
953 hif_dev
->device_id
= id
->idProduct
;
955 udev
->reset_resume
= 1;
957 usb_set_intfdata(interface
, hif_dev
);
959 hif_dev
->htc_handle
= ath9k_htc_hw_alloc(hif_dev
, &hif_usb
,
960 &hif_dev
->udev
->dev
);
961 if (hif_dev
->htc_handle
== NULL
) {
963 goto err_htc_hw_alloc
;
966 /* Find out which firmware to load */
968 if (IS_AR7010_DEVICE(id
->driver_info
))
969 if (le16_to_cpu(udev
->descriptor
.bcdDevice
) == 0x0202)
970 hif_dev
->fw_name
= FIRMWARE_AR7010_1_1
;
972 hif_dev
->fw_name
= FIRMWARE_AR7010
;
974 hif_dev
->fw_name
= FIRMWARE_AR9271
;
976 ret
= ath9k_hif_usb_dev_init(hif_dev
, id
->driver_info
);
979 goto err_hif_init_usb
;
982 ret
= ath9k_htc_hw_init(hif_dev
->htc_handle
,
983 &hif_dev
->udev
->dev
, hif_dev
->device_id
,
984 hif_dev
->udev
->product
, id
->driver_info
);
987 goto err_htc_hw_init
;
990 dev_info(&hif_dev
->udev
->dev
, "ath9k_htc: USB layer initialized\n");
995 ath9k_hif_usb_dev_deinit(hif_dev
);
997 ath9k_htc_hw_free(hif_dev
->htc_handle
);
999 usb_set_intfdata(interface
, NULL
);
1006 static void ath9k_hif_usb_reboot(struct usb_device
*udev
)
1008 u32 reboot_cmd
= 0xffffffff;
1012 buf
= kmemdup(&reboot_cmd
, 4, GFP_KERNEL
);
1016 ret
= usb_bulk_msg(udev
, usb_sndbulkpipe(udev
, USB_REG_OUT_PIPE
),
1019 dev_err(&udev
->dev
, "ath9k_htc: USB reboot failed\n");
1024 static void ath9k_hif_usb_disconnect(struct usb_interface
*interface
)
1026 struct usb_device
*udev
= interface_to_usbdev(interface
);
1027 struct hif_device_usb
*hif_dev
= usb_get_intfdata(interface
);
1028 bool unplugged
= (udev
->state
== USB_STATE_NOTATTACHED
) ? true : false;
1031 ath9k_htc_hw_deinit(hif_dev
->htc_handle
, unplugged
);
1032 ath9k_htc_hw_free(hif_dev
->htc_handle
);
1033 ath9k_hif_usb_dev_deinit(hif_dev
);
1034 usb_set_intfdata(interface
, NULL
);
1037 if (!unplugged
&& (hif_dev
->flags
& HIF_USB_START
))
1038 ath9k_hif_usb_reboot(udev
);
1041 dev_info(&udev
->dev
, "ath9k_htc: USB layer deinitialized\n");
1046 static int ath9k_hif_usb_suspend(struct usb_interface
*interface
,
1047 pm_message_t message
)
1049 struct hif_device_usb
*hif_dev
= usb_get_intfdata(interface
);
1052 * The device has to be set to FULLSLEEP mode in case no
1055 if (!(hif_dev
->flags
& HIF_USB_START
))
1056 ath9k_htc_suspend(hif_dev
->htc_handle
);
1058 ath9k_hif_usb_dealloc_urbs(hif_dev
);
1063 static int ath9k_hif_usb_resume(struct usb_interface
*interface
)
1065 struct hif_device_usb
*hif_dev
= usb_get_intfdata(interface
);
1066 struct htc_target
*htc_handle
= hif_dev
->htc_handle
;
1069 ret
= ath9k_hif_usb_alloc_urbs(hif_dev
);
1073 if (hif_dev
->firmware
) {
1074 ret
= ath9k_hif_usb_download_fw(hif_dev
,
1075 htc_handle
->drv_priv
->ah
->hw_version
.usbdev
);
1079 ath9k_hif_usb_dealloc_urbs(hif_dev
);
1085 ret
= ath9k_htc_resume(htc_handle
);
1093 ath9k_hif_usb_dealloc_urbs(hif_dev
);
1099 static struct usb_driver ath9k_hif_usb_driver
= {
1100 .name
= "ath9k_hif_usb",
1101 .probe
= ath9k_hif_usb_probe
,
1102 .disconnect
= ath9k_hif_usb_disconnect
,
1104 .suspend
= ath9k_hif_usb_suspend
,
1105 .resume
= ath9k_hif_usb_resume
,
1106 .reset_resume
= ath9k_hif_usb_resume
,
1108 .id_table
= ath9k_hif_usb_ids
,
1112 int ath9k_hif_usb_init(void)
1114 return usb_register(&ath9k_hif_usb_driver
);
1117 void ath9k_hif_usb_exit(void)
1119 usb_deregister(&ath9k_hif_usb_driver
);