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20#include "main.h"
21#include "usb.h"
22
23#define USB_VERSION "1.0"
24
25static struct mwifiex_if_ops usb_ops;
26
27static const struct usb_device_id mwifiex_usb_table[] = {
28
29 {USB_DEVICE(USB8XXX_VID, USB8766_PID_1)},
30 {USB_DEVICE_AND_INTERFACE_INFO(USB8XXX_VID, USB8766_PID_2,
31 USB_CLASS_VENDOR_SPEC,
32 USB_SUBCLASS_VENDOR_SPEC, 0xff)},
33
34 {USB_DEVICE(USB8XXX_VID, USB8797_PID_1)},
35 {USB_DEVICE_AND_INTERFACE_INFO(USB8XXX_VID, USB8797_PID_2,
36 USB_CLASS_VENDOR_SPEC,
37 USB_SUBCLASS_VENDOR_SPEC, 0xff)},
38
39 {USB_DEVICE(USB8XXX_VID, USB8801_PID_1)},
40 {USB_DEVICE_AND_INTERFACE_INFO(USB8XXX_VID, USB8801_PID_2,
41 USB_CLASS_VENDOR_SPEC,
42 USB_SUBCLASS_VENDOR_SPEC, 0xff)},
43
44 {USB_DEVICE(USB8XXX_VID, USB8997_PID_1)},
45 {USB_DEVICE_AND_INTERFACE_INFO(USB8XXX_VID, USB8997_PID_2,
46 USB_CLASS_VENDOR_SPEC,
47 USB_SUBCLASS_VENDOR_SPEC, 0xff)},
48 { }
49};
50
51MODULE_DEVICE_TABLE(usb, mwifiex_usb_table);
52
53static int mwifiex_usb_submit_rx_urb(struct urb_context *ctx, int size);
54
55
56
57
58static int mwifiex_usb_recv(struct mwifiex_adapter *adapter,
59 struct sk_buff *skb, u8 ep)
60{
61 u32 recv_type;
62 __le32 tmp;
63 int ret;
64
65 if (adapter->hs_activated)
66 mwifiex_process_hs_config(adapter);
67
68 if (skb->len < INTF_HEADER_LEN) {
69 mwifiex_dbg(adapter, ERROR,
70 "%s: invalid skb->len\n", __func__);
71 return -1;
72 }
73
74 switch (ep) {
75 case MWIFIEX_USB_EP_CMD_EVENT:
76 mwifiex_dbg(adapter, EVENT,
77 "%s: EP_CMD_EVENT\n", __func__);
78 skb_copy_from_linear_data(skb, &tmp, INTF_HEADER_LEN);
79 recv_type = le32_to_cpu(tmp);
80 skb_pull(skb, INTF_HEADER_LEN);
81
82 switch (recv_type) {
83 case MWIFIEX_USB_TYPE_CMD:
84 if (skb->len > MWIFIEX_SIZE_OF_CMD_BUFFER) {
85 mwifiex_dbg(adapter, ERROR,
86 "CMD: skb->len too large\n");
87 ret = -1;
88 goto exit_restore_skb;
89 } else if (!adapter->curr_cmd) {
90 mwifiex_dbg(adapter, WARN, "CMD: no curr_cmd\n");
91 if (adapter->ps_state == PS_STATE_SLEEP_CFM) {
92 mwifiex_process_sleep_confirm_resp(
93 adapter, skb->data,
94 skb->len);
95 ret = 0;
96 goto exit_restore_skb;
97 }
98 ret = -1;
99 goto exit_restore_skb;
100 }
101
102 adapter->curr_cmd->resp_skb = skb;
103 adapter->cmd_resp_received = true;
104 break;
105 case MWIFIEX_USB_TYPE_EVENT:
106 if (skb->len < sizeof(u32)) {
107 mwifiex_dbg(adapter, ERROR,
108 "EVENT: skb->len too small\n");
109 ret = -1;
110 goto exit_restore_skb;
111 }
112 skb_copy_from_linear_data(skb, &tmp, sizeof(u32));
113 adapter->event_cause = le32_to_cpu(tmp);
114 mwifiex_dbg(adapter, EVENT,
115 "event_cause %#x\n", adapter->event_cause);
116
117 if (skb->len > MAX_EVENT_SIZE) {
118 mwifiex_dbg(adapter, ERROR,
119 "EVENT: event body too large\n");
120 ret = -1;
121 goto exit_restore_skb;
122 }
123
124 memcpy(adapter->event_body, skb->data +
125 MWIFIEX_EVENT_HEADER_LEN, skb->len);
126
127 adapter->event_received = true;
128 adapter->event_skb = skb;
129 break;
130 default:
131 mwifiex_dbg(adapter, ERROR,
132 "unknown recv_type %#x\n", recv_type);
133 return -1;
134 }
135 break;
136 case MWIFIEX_USB_EP_DATA:
137 mwifiex_dbg(adapter, DATA, "%s: EP_DATA\n", __func__);
138 if (skb->len > MWIFIEX_RX_DATA_BUF_SIZE) {
139 mwifiex_dbg(adapter, ERROR,
140 "DATA: skb->len too large\n");
141 return -1;
142 }
143
144 skb_queue_tail(&adapter->rx_data_q, skb);
145 adapter->data_received = true;
146 atomic_inc(&adapter->rx_pending);
147 break;
148 default:
149 mwifiex_dbg(adapter, ERROR,
150 "%s: unknown endport %#x\n", __func__, ep);
151 return -1;
152 }
153
154 return -EINPROGRESS;
155
156exit_restore_skb:
157
158 skb_push(skb, INTF_HEADER_LEN);
159
160 return ret;
161}
162
163static void mwifiex_usb_rx_complete(struct urb *urb)
164{
165 struct urb_context *context = (struct urb_context *)urb->context;
166 struct mwifiex_adapter *adapter = context->adapter;
167 struct sk_buff *skb = context->skb;
168 struct usb_card_rec *card;
169 int recv_length = urb->actual_length;
170 int size, status;
171
172 if (!adapter || !adapter->card) {
173 pr_err("mwifiex adapter or card structure is not valid\n");
174 return;
175 }
176
177 card = (struct usb_card_rec *)adapter->card;
178 if (card->rx_cmd_ep == context->ep)
179 atomic_dec(&card->rx_cmd_urb_pending);
180 else
181 atomic_dec(&card->rx_data_urb_pending);
182
183 if (recv_length) {
184 if (urb->status || (adapter->surprise_removed)) {
185 mwifiex_dbg(adapter, ERROR,
186 "URB status is failed: %d\n", urb->status);
187
188 if (card->rx_cmd_ep != context->ep)
189 dev_kfree_skb_any(skb);
190 goto setup_for_next;
191 }
192 if (skb->len > recv_length)
193 skb_trim(skb, recv_length);
194 else
195 skb_put(skb, recv_length - skb->len);
196
197 status = mwifiex_usb_recv(adapter, skb, context->ep);
198
199 mwifiex_dbg(adapter, INFO,
200 "info: recv_length=%d, status=%d\n",
201 recv_length, status);
202 if (status == -EINPROGRESS) {
203 mwifiex_queue_main_work(adapter);
204
205
206
207
208
209 if (card->rx_cmd_ep == context->ep)
210 return;
211 } else {
212 if (status == -1)
213 mwifiex_dbg(adapter, ERROR,
214 "received data processing failed!\n");
215
216
217 if (card->rx_cmd_ep != context->ep)
218 dev_kfree_skb_any(skb);
219 }
220 } else if (urb->status) {
221 if (!adapter->is_suspended) {
222 mwifiex_dbg(adapter, FATAL,
223 "Card is removed: %d\n", urb->status);
224 adapter->surprise_removed = true;
225 }
226 dev_kfree_skb_any(skb);
227 return;
228 } else {
229
230 if (card->rx_cmd_ep != context->ep)
231 dev_kfree_skb_any(skb);
232
233
234 }
235
236setup_for_next:
237 if (card->rx_cmd_ep == context->ep)
238 size = MWIFIEX_RX_CMD_BUF_SIZE;
239 else
240 size = MWIFIEX_RX_DATA_BUF_SIZE;
241
242 if (card->rx_cmd_ep == context->ep) {
243 mwifiex_usb_submit_rx_urb(context, size);
244 } else {
245 if (atomic_read(&adapter->rx_pending) <= HIGH_RX_PENDING) {
246 mwifiex_usb_submit_rx_urb(context, size);
247 } else {
248 context->skb = NULL;
249 }
250 }
251
252 return;
253}
254
255static void mwifiex_usb_tx_complete(struct urb *urb)
256{
257 struct urb_context *context = (struct urb_context *)(urb->context);
258 struct mwifiex_adapter *adapter = context->adapter;
259 struct usb_card_rec *card = adapter->card;
260 struct usb_tx_data_port *port;
261 int i;
262
263 mwifiex_dbg(adapter, INFO,
264 "%s: status: %d\n", __func__, urb->status);
265
266 if (context->ep == card->tx_cmd_ep) {
267 mwifiex_dbg(adapter, CMD,
268 "%s: CMD\n", __func__);
269 atomic_dec(&card->tx_cmd_urb_pending);
270 adapter->cmd_sent = false;
271 } else {
272 mwifiex_dbg(adapter, DATA,
273 "%s: DATA\n", __func__);
274 mwifiex_write_data_complete(adapter, context->skb, 0,
275 urb->status ? -1 : 0);
276 for (i = 0; i < MWIFIEX_TX_DATA_PORT; i++) {
277 port = &card->port[i];
278 if (context->ep == port->tx_data_ep) {
279 atomic_dec(&port->tx_data_urb_pending);
280 port->block_status = false;
281 break;
282 }
283 }
284 adapter->data_sent = false;
285 }
286
287 if (card->mc_resync_flag)
288 mwifiex_multi_chan_resync(adapter);
289
290 mwifiex_queue_main_work(adapter);
291
292 return;
293}
294
295static int mwifiex_usb_submit_rx_urb(struct urb_context *ctx, int size)
296{
297 struct mwifiex_adapter *adapter = ctx->adapter;
298 struct usb_card_rec *card = (struct usb_card_rec *)adapter->card;
299
300 if (card->rx_cmd_ep != ctx->ep) {
301 ctx->skb = dev_alloc_skb(size);
302 if (!ctx->skb) {
303 mwifiex_dbg(adapter, ERROR,
304 "%s: dev_alloc_skb failed\n", __func__);
305 return -ENOMEM;
306 }
307 }
308
309 if (card->rx_cmd_ep == ctx->ep &&
310 card->rx_cmd_ep_type == USB_ENDPOINT_XFER_INT)
311 usb_fill_int_urb(ctx->urb, card->udev,
312 usb_rcvintpipe(card->udev, ctx->ep),
313 ctx->skb->data, size, mwifiex_usb_rx_complete,
314 (void *)ctx, card->rx_cmd_interval);
315 else
316 usb_fill_bulk_urb(ctx->urb, card->udev,
317 usb_rcvbulkpipe(card->udev, ctx->ep),
318 ctx->skb->data, size, mwifiex_usb_rx_complete,
319 (void *)ctx);
320
321 if (card->rx_cmd_ep == ctx->ep)
322 atomic_inc(&card->rx_cmd_urb_pending);
323 else
324 atomic_inc(&card->rx_data_urb_pending);
325
326 if (usb_submit_urb(ctx->urb, GFP_ATOMIC)) {
327 mwifiex_dbg(adapter, ERROR, "usb_submit_urb failed\n");
328 dev_kfree_skb_any(ctx->skb);
329 ctx->skb = NULL;
330
331 if (card->rx_cmd_ep == ctx->ep)
332 atomic_dec(&card->rx_cmd_urb_pending);
333 else
334 atomic_dec(&card->rx_data_urb_pending);
335
336 return -1;
337 }
338
339 return 0;
340}
341
342static void mwifiex_usb_free(struct usb_card_rec *card)
343{
344 struct usb_tx_data_port *port;
345 int i, j;
346
347 if (atomic_read(&card->rx_cmd_urb_pending) && card->rx_cmd.urb)
348 usb_kill_urb(card->rx_cmd.urb);
349
350 usb_free_urb(card->rx_cmd.urb);
351 card->rx_cmd.urb = NULL;
352
353 if (atomic_read(&card->rx_data_urb_pending))
354 for (i = 0; i < MWIFIEX_RX_DATA_URB; i++)
355 if (card->rx_data_list[i].urb)
356 usb_kill_urb(card->rx_data_list[i].urb);
357
358 for (i = 0; i < MWIFIEX_RX_DATA_URB; i++) {
359 usb_free_urb(card->rx_data_list[i].urb);
360 card->rx_data_list[i].urb = NULL;
361 }
362
363 for (i = 0; i < MWIFIEX_TX_DATA_PORT; i++) {
364 port = &card->port[i];
365 for (j = 0; j < MWIFIEX_TX_DATA_URB; j++) {
366 usb_kill_urb(port->tx_data_list[j].urb);
367 usb_free_urb(port->tx_data_list[j].urb);
368 port->tx_data_list[j].urb = NULL;
369 }
370 }
371
372 usb_free_urb(card->tx_cmd.urb);
373 card->tx_cmd.urb = NULL;
374
375 return;
376}
377
378
379
380
381
382static int mwifiex_usb_probe(struct usb_interface *intf,
383 const struct usb_device_id *id)
384{
385 struct usb_device *udev = interface_to_usbdev(intf);
386 struct usb_host_interface *iface_desc = intf->cur_altsetting;
387 struct usb_endpoint_descriptor *epd;
388 int ret, i;
389 struct usb_card_rec *card;
390 u16 id_vendor, id_product, bcd_device;
391
392 card = devm_kzalloc(&intf->dev, sizeof(*card), GFP_KERNEL);
393 if (!card)
394 return -ENOMEM;
395
396 init_completion(&card->fw_done);
397
398 id_vendor = le16_to_cpu(udev->descriptor.idVendor);
399 id_product = le16_to_cpu(udev->descriptor.idProduct);
400 bcd_device = le16_to_cpu(udev->descriptor.bcdDevice);
401 pr_debug("info: VID/PID = %X/%X, Boot2 version = %X\n",
402 id_vendor, id_product, bcd_device);
403
404
405 switch (id_product) {
406 case USB8766_PID_1:
407 case USB8797_PID_1:
408 case USB8801_PID_1:
409 case USB8997_PID_1:
410 card->usb_boot_state = USB8XXX_FW_DNLD;
411 break;
412 case USB8766_PID_2:
413 case USB8797_PID_2:
414 case USB8801_PID_2:
415 case USB8997_PID_2:
416 card->usb_boot_state = USB8XXX_FW_READY;
417 break;
418 default:
419 pr_warn("unknown id_product %#x\n", id_product);
420 card->usb_boot_state = USB8XXX_FW_DNLD;
421 break;
422 }
423
424 card->udev = udev;
425 card->intf = intf;
426
427 pr_debug("info: bcdUSB=%#x Device Class=%#x SubClass=%#x Protocol=%#x\n",
428 le16_to_cpu(udev->descriptor.bcdUSB),
429 udev->descriptor.bDeviceClass,
430 udev->descriptor.bDeviceSubClass,
431 udev->descriptor.bDeviceProtocol);
432
433 for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) {
434 epd = &iface_desc->endpoint[i].desc;
435 if (usb_endpoint_dir_in(epd) &&
436 usb_endpoint_num(epd) == MWIFIEX_USB_EP_CMD_EVENT &&
437 (usb_endpoint_xfer_bulk(epd) ||
438 usb_endpoint_xfer_int(epd))) {
439 card->rx_cmd_ep_type = usb_endpoint_type(epd);
440 card->rx_cmd_interval = epd->bInterval;
441 pr_debug("info: Rx CMD/EVT:: max pkt size: %d, addr: %d, ep_type: %d\n",
442 le16_to_cpu(epd->wMaxPacketSize),
443 epd->bEndpointAddress, card->rx_cmd_ep_type);
444 card->rx_cmd_ep = usb_endpoint_num(epd);
445 atomic_set(&card->rx_cmd_urb_pending, 0);
446 }
447 if (usb_endpoint_dir_in(epd) &&
448 usb_endpoint_num(epd) == MWIFIEX_USB_EP_DATA &&
449 usb_endpoint_xfer_bulk(epd)) {
450 pr_debug("info: bulk IN: max pkt size: %d, addr: %d\n",
451 le16_to_cpu(epd->wMaxPacketSize),
452 epd->bEndpointAddress);
453 card->rx_data_ep = usb_endpoint_num(epd);
454 atomic_set(&card->rx_data_urb_pending, 0);
455 }
456 if (usb_endpoint_dir_out(epd) &&
457 usb_endpoint_num(epd) == MWIFIEX_USB_EP_DATA &&
458 usb_endpoint_xfer_bulk(epd)) {
459 pr_debug("info: bulk OUT: max pkt size: %d, addr: %d\n",
460 le16_to_cpu(epd->wMaxPacketSize),
461 epd->bEndpointAddress);
462 card->port[0].tx_data_ep = usb_endpoint_num(epd);
463 atomic_set(&card->port[0].tx_data_urb_pending, 0);
464 }
465 if (usb_endpoint_dir_out(epd) &&
466 usb_endpoint_num(epd) == MWIFIEX_USB_EP_DATA_CH2 &&
467 usb_endpoint_xfer_bulk(epd)) {
468 pr_debug("info: bulk OUT chan2:\t"
469 "max pkt size: %d, addr: %d\n",
470 le16_to_cpu(epd->wMaxPacketSize),
471 epd->bEndpointAddress);
472 card->port[1].tx_data_ep = usb_endpoint_num(epd);
473 atomic_set(&card->port[1].tx_data_urb_pending, 0);
474 }
475 if (usb_endpoint_dir_out(epd) &&
476 usb_endpoint_num(epd) == MWIFIEX_USB_EP_CMD_EVENT &&
477 (usb_endpoint_xfer_bulk(epd) ||
478 usb_endpoint_xfer_int(epd))) {
479 card->tx_cmd_ep_type = usb_endpoint_type(epd);
480 card->tx_cmd_interval = epd->bInterval;
481 pr_debug("info: bulk OUT: max pkt size: %d, addr: %d\n",
482 le16_to_cpu(epd->wMaxPacketSize),
483 epd->bEndpointAddress);
484 pr_debug("info: Tx CMD:: max pkt size: %d, addr: %d, ep_type: %d\n",
485 le16_to_cpu(epd->wMaxPacketSize),
486 epd->bEndpointAddress, card->tx_cmd_ep_type);
487 card->tx_cmd_ep = usb_endpoint_num(epd);
488 atomic_set(&card->tx_cmd_urb_pending, 0);
489 card->bulk_out_maxpktsize =
490 le16_to_cpu(epd->wMaxPacketSize);
491 }
492 }
493
494 usb_set_intfdata(intf, card);
495
496 ret = mwifiex_add_card(card, &card->fw_done, &usb_ops,
497 MWIFIEX_USB, &card->udev->dev);
498 if (ret) {
499 pr_err("%s: mwifiex_add_card failed: %d\n", __func__, ret);
500 usb_reset_device(udev);
501 return ret;
502 }
503
504 usb_get_dev(udev);
505
506 return 0;
507}
508
509
510
511
512
513
514
515
516static int mwifiex_usb_suspend(struct usb_interface *intf, pm_message_t message)
517{
518 struct usb_card_rec *card = usb_get_intfdata(intf);
519 struct mwifiex_adapter *adapter;
520 struct usb_tx_data_port *port;
521 int i, j;
522
523
524 wait_for_completion(&card->fw_done);
525
526 adapter = card->adapter;
527 if (!adapter) {
528 dev_err(&intf->dev, "card is not valid\n");
529 return 0;
530 }
531
532 if (unlikely(adapter->is_suspended))
533 mwifiex_dbg(adapter, WARN,
534 "Device already suspended\n");
535
536
537 if (!mwifiex_enable_hs(adapter)) {
538 mwifiex_dbg(adapter, ERROR,
539 "cmd: failed to suspend\n");
540 adapter->hs_enabling = false;
541 return -EFAULT;
542 }
543
544
545
546
547
548
549
550
551 adapter->is_suspended = true;
552 adapter->hs_enabling = false;
553
554 if (atomic_read(&card->rx_cmd_urb_pending) && card->rx_cmd.urb)
555 usb_kill_urb(card->rx_cmd.urb);
556
557 if (atomic_read(&card->rx_data_urb_pending))
558 for (i = 0; i < MWIFIEX_RX_DATA_URB; i++)
559 if (card->rx_data_list[i].urb)
560 usb_kill_urb(card->rx_data_list[i].urb);
561
562 for (i = 0; i < MWIFIEX_TX_DATA_PORT; i++) {
563 port = &card->port[i];
564 for (j = 0; j < MWIFIEX_TX_DATA_URB; j++) {
565 if (port->tx_data_list[j].urb)
566 usb_kill_urb(port->tx_data_list[j].urb);
567 }
568 }
569
570 if (card->tx_cmd.urb)
571 usb_kill_urb(card->tx_cmd.urb);
572
573 return 0;
574}
575
576
577
578
579
580
581
582
583static int mwifiex_usb_resume(struct usb_interface *intf)
584{
585 struct usb_card_rec *card = usb_get_intfdata(intf);
586 struct mwifiex_adapter *adapter;
587 int i;
588
589 if (!card->adapter) {
590 dev_err(&intf->dev, "%s: card->adapter is NULL\n",
591 __func__);
592 return 0;
593 }
594 adapter = card->adapter;
595
596 if (unlikely(!adapter->is_suspended)) {
597 mwifiex_dbg(adapter, WARN,
598 "Device already resumed\n");
599 return 0;
600 }
601
602
603
604
605 adapter->is_suspended = false;
606
607 if (!atomic_read(&card->rx_data_urb_pending))
608 for (i = 0; i < MWIFIEX_RX_DATA_URB; i++)
609 mwifiex_usb_submit_rx_urb(&card->rx_data_list[i],
610 MWIFIEX_RX_DATA_BUF_SIZE);
611
612 if (!atomic_read(&card->rx_cmd_urb_pending)) {
613 card->rx_cmd.skb = dev_alloc_skb(MWIFIEX_RX_CMD_BUF_SIZE);
614 if (card->rx_cmd.skb)
615 mwifiex_usb_submit_rx_urb(&card->rx_cmd,
616 MWIFIEX_RX_CMD_BUF_SIZE);
617 }
618
619
620 if (adapter->hs_activated)
621 mwifiex_cancel_hs(mwifiex_get_priv(adapter,
622 MWIFIEX_BSS_ROLE_ANY),
623 MWIFIEX_ASYNC_CMD);
624
625 return 0;
626}
627
628static void mwifiex_usb_disconnect(struct usb_interface *intf)
629{
630 struct usb_card_rec *card = usb_get_intfdata(intf);
631 struct mwifiex_adapter *adapter;
632
633 wait_for_completion(&card->fw_done);
634
635 adapter = card->adapter;
636 if (!adapter || !adapter->priv_num)
637 return;
638
639 if (card->udev->state != USB_STATE_NOTATTACHED && !adapter->mfg_mode) {
640 mwifiex_deauthenticate_all(adapter);
641
642 mwifiex_init_shutdown_fw(mwifiex_get_priv(adapter,
643 MWIFIEX_BSS_ROLE_ANY),
644 MWIFIEX_FUNC_SHUTDOWN);
645 }
646
647 mwifiex_usb_free(card);
648
649 mwifiex_dbg(adapter, FATAL,
650 "%s: removing card\n", __func__);
651 mwifiex_remove_card(adapter);
652
653 usb_put_dev(interface_to_usbdev(intf));
654}
655
656static struct usb_driver mwifiex_usb_driver = {
657 .name = "mwifiex_usb",
658 .probe = mwifiex_usb_probe,
659 .disconnect = mwifiex_usb_disconnect,
660 .id_table = mwifiex_usb_table,
661 .suspend = mwifiex_usb_suspend,
662 .resume = mwifiex_usb_resume,
663 .soft_unbind = 1,
664};
665
666static int mwifiex_write_data_sync(struct mwifiex_adapter *adapter, u8 *pbuf,
667 u32 *len, u8 ep, u32 timeout)
668{
669 struct usb_card_rec *card = adapter->card;
670 int actual_length, ret;
671
672 if (!(*len % card->bulk_out_maxpktsize))
673 (*len)++;
674
675
676 ret = usb_bulk_msg(card->udev, usb_sndbulkpipe(card->udev, ep), pbuf,
677 *len, &actual_length, timeout);
678 if (ret) {
679 mwifiex_dbg(adapter, ERROR,
680 "usb_bulk_msg for tx failed: %d\n", ret);
681 return ret;
682 }
683
684 *len = actual_length;
685
686 return ret;
687}
688
689static int mwifiex_read_data_sync(struct mwifiex_adapter *adapter, u8 *pbuf,
690 u32 *len, u8 ep, u32 timeout)
691{
692 struct usb_card_rec *card = adapter->card;
693 int actual_length, ret;
694
695
696 ret = usb_bulk_msg(card->udev, usb_rcvbulkpipe(card->udev, ep), pbuf,
697 *len, &actual_length, timeout);
698 if (ret) {
699 mwifiex_dbg(adapter, ERROR,
700 "usb_bulk_msg for rx failed: %d\n", ret);
701 return ret;
702 }
703
704 *len = actual_length;
705
706 return ret;
707}
708
709static void mwifiex_usb_port_resync(struct mwifiex_adapter *adapter)
710{
711 struct usb_card_rec *card = adapter->card;
712 u8 active_port = MWIFIEX_USB_EP_DATA;
713 struct mwifiex_private *priv = NULL;
714 int i;
715
716 if (adapter->usb_mc_status) {
717 for (i = 0; i < adapter->priv_num; i++) {
718 priv = adapter->priv[i];
719 if (!priv)
720 continue;
721 if ((priv->bss_role == MWIFIEX_BSS_ROLE_UAP &&
722 !priv->bss_started) ||
723 (priv->bss_role == MWIFIEX_BSS_ROLE_STA &&
724 !priv->media_connected))
725 priv->usb_port = MWIFIEX_USB_EP_DATA;
726 }
727 for (i = 0; i < MWIFIEX_TX_DATA_PORT; i++)
728 card->port[i].block_status = false;
729 } else {
730 for (i = 0; i < adapter->priv_num; i++) {
731 priv = adapter->priv[i];
732 if (!priv)
733 continue;
734 if ((priv->bss_role == MWIFIEX_BSS_ROLE_UAP &&
735 priv->bss_started) ||
736 (priv->bss_role == MWIFIEX_BSS_ROLE_STA &&
737 priv->media_connected)) {
738 active_port = priv->usb_port;
739 break;
740 }
741 }
742 for (i = 0; i < adapter->priv_num; i++) {
743 priv = adapter->priv[i];
744 if (priv)
745 priv->usb_port = active_port;
746 }
747 for (i = 0; i < MWIFIEX_TX_DATA_PORT; i++) {
748 if (active_port == card->port[i].tx_data_ep)
749 card->port[i].block_status = false;
750 else
751 card->port[i].block_status = true;
752 }
753 }
754}
755
756static bool mwifiex_usb_is_port_ready(struct mwifiex_private *priv)
757{
758 struct usb_card_rec *card = priv->adapter->card;
759 int idx;
760
761 for (idx = 0; idx < MWIFIEX_TX_DATA_PORT; idx++) {
762 if (priv->usb_port == card->port[idx].tx_data_ep)
763 return !card->port[idx].block_status;
764 }
765
766 return false;
767}
768
769static inline u8 mwifiex_usb_data_sent(struct mwifiex_adapter *adapter)
770{
771 struct usb_card_rec *card = adapter->card;
772 int i;
773
774 for (i = 0; i < MWIFIEX_TX_DATA_PORT; i++)
775 if (!card->port[i].block_status)
776 return false;
777
778 return true;
779}
780
781static int mwifiex_usb_construct_send_urb(struct mwifiex_adapter *adapter,
782 struct usb_tx_data_port *port, u8 ep,
783 struct urb_context *context,
784 struct sk_buff *skb_send)
785{
786 struct usb_card_rec *card = adapter->card;
787 int ret = -EINPROGRESS;
788 struct urb *tx_urb;
789
790 context->adapter = adapter;
791 context->ep = ep;
792 context->skb = skb_send;
793 tx_urb = context->urb;
794
795 if (ep == card->tx_cmd_ep &&
796 card->tx_cmd_ep_type == USB_ENDPOINT_XFER_INT)
797 usb_fill_int_urb(tx_urb, card->udev,
798 usb_sndintpipe(card->udev, ep), skb_send->data,
799 skb_send->len, mwifiex_usb_tx_complete,
800 (void *)context, card->tx_cmd_interval);
801 else
802 usb_fill_bulk_urb(tx_urb, card->udev,
803 usb_sndbulkpipe(card->udev, ep),
804 skb_send->data, skb_send->len,
805 mwifiex_usb_tx_complete, (void *)context);
806
807 tx_urb->transfer_flags |= URB_ZERO_PACKET;
808
809 if (ep == card->tx_cmd_ep)
810 atomic_inc(&card->tx_cmd_urb_pending);
811 else
812 atomic_inc(&port->tx_data_urb_pending);
813
814 if (ep != card->tx_cmd_ep &&
815 atomic_read(&port->tx_data_urb_pending) ==
816 MWIFIEX_TX_DATA_URB) {
817 port->block_status = true;
818 adapter->data_sent = mwifiex_usb_data_sent(adapter);
819 ret = -ENOSR;
820 }
821
822 if (usb_submit_urb(tx_urb, GFP_ATOMIC)) {
823 mwifiex_dbg(adapter, ERROR,
824 "%s: usb_submit_urb failed\n", __func__);
825 if (ep == card->tx_cmd_ep) {
826 atomic_dec(&card->tx_cmd_urb_pending);
827 } else {
828 atomic_dec(&port->tx_data_urb_pending);
829 port->block_status = false;
830 adapter->data_sent = false;
831 if (port->tx_data_ix)
832 port->tx_data_ix--;
833 else
834 port->tx_data_ix = MWIFIEX_TX_DATA_URB;
835 }
836 ret = -1;
837 }
838
839 return ret;
840}
841
842static int mwifiex_usb_prepare_tx_aggr_skb(struct mwifiex_adapter *adapter,
843 struct usb_tx_data_port *port,
844 struct sk_buff **skb_send)
845{
846 struct sk_buff *skb_aggr, *skb_tmp;
847 u8 *payload, pad;
848 u16 align = adapter->bus_aggr.tx_aggr_align;
849 struct mwifiex_txinfo *tx_info = NULL;
850 bool is_txinfo_set = false;
851
852
853
854
855 if (port->tx_aggr.timer_cnxt.is_hold_timer_set) {
856 del_timer(&port->tx_aggr.timer_cnxt.hold_timer);
857 port->tx_aggr.timer_cnxt.is_hold_timer_set = false;
858 port->tx_aggr.timer_cnxt.hold_tmo_msecs = 0;
859 }
860
861 skb_aggr = mwifiex_alloc_dma_align_buf(port->tx_aggr.aggr_len,
862 GFP_ATOMIC);
863 if (!skb_aggr) {
864 mwifiex_dbg(adapter, ERROR,
865 "%s: alloc skb_aggr failed\n", __func__);
866
867 while ((skb_tmp = skb_dequeue(&port->tx_aggr.aggr_list)))
868 mwifiex_write_data_complete(adapter, skb_tmp, 0, -1);
869
870 port->tx_aggr.aggr_num = 0;
871 port->tx_aggr.aggr_len = 0;
872 return -EBUSY;
873 }
874
875 tx_info = MWIFIEX_SKB_TXCB(skb_aggr);
876 memset(tx_info, 0, sizeof(*tx_info));
877
878 while ((skb_tmp = skb_dequeue(&port->tx_aggr.aggr_list))) {
879
880 pad = (align - (skb_tmp->len & (align - 1))) % align;
881 payload = skb_put(skb_aggr, skb_tmp->len + pad);
882 memcpy(payload, skb_tmp->data, skb_tmp->len);
883 if (skb_queue_empty(&port->tx_aggr.aggr_list)) {
884
885 *(u16 *)payload = cpu_to_le16(skb_tmp->len);
886 *(u16 *)&payload[2] =
887 cpu_to_le16(MWIFIEX_TYPE_AGGR_DATA_V2 | 0x80);
888 skb_trim(skb_aggr, skb_aggr->len - pad);
889 } else {
890
891 *(u16 *)payload = cpu_to_le16(skb_tmp->len + pad);
892 *(u16 *)&payload[2] =
893 cpu_to_le16(MWIFIEX_TYPE_AGGR_DATA_V2);
894 }
895
896 if (!is_txinfo_set) {
897 tx_info->bss_num = MWIFIEX_SKB_TXCB(skb_tmp)->bss_num;
898 tx_info->bss_type = MWIFIEX_SKB_TXCB(skb_tmp)->bss_type;
899 is_txinfo_set = true;
900 }
901
902 port->tx_aggr.aggr_num--;
903 port->tx_aggr.aggr_len -= (skb_tmp->len + pad);
904 mwifiex_write_data_complete(adapter, skb_tmp, 0, 0);
905 }
906
907 tx_info->pkt_len = skb_aggr->len -
908 (sizeof(struct txpd) + adapter->intf_hdr_len);
909 tx_info->flags |= MWIFIEX_BUF_FLAG_AGGR_PKT;
910
911 port->tx_aggr.aggr_num = 0;
912 port->tx_aggr.aggr_len = 0;
913 *skb_send = skb_aggr;
914
915 return 0;
916}
917
918
919
920
921
922
923
924
925
926
927static int mwifiex_usb_aggr_tx_data(struct mwifiex_adapter *adapter, u8 ep,
928 struct sk_buff *skb,
929 struct mwifiex_tx_param *tx_param,
930 struct usb_tx_data_port *port)
931{
932 u8 *payload, pad;
933 u16 align = adapter->bus_aggr.tx_aggr_align;
934 struct sk_buff *skb_send = NULL;
935 struct urb_context *context = NULL;
936 struct txpd *local_tx_pd =
937 (struct txpd *)((u8 *)skb->data + adapter->intf_hdr_len);
938 u8 f_send_aggr_buf = 0;
939 u8 f_send_cur_buf = 0;
940 u8 f_precopy_cur_buf = 0;
941 u8 f_postcopy_cur_buf = 0;
942 u32 timeout;
943 int ret;
944
945
946 pad = (align - (skb->len & (align - 1))) % align;
947
948 if (tx_param && tx_param->next_pkt_len) {
949
950 if (port->tx_aggr.aggr_len + skb->len + pad >
951 adapter->bus_aggr.tx_aggr_max_size) {
952 f_send_aggr_buf = 1;
953 f_postcopy_cur_buf = 1;
954 } else {
955
956 f_precopy_cur_buf = 1;
957
958 if (port->tx_aggr.aggr_len + skb->len + pad +
959 tx_param->next_pkt_len >
960 adapter->bus_aggr.tx_aggr_max_size ||
961 port->tx_aggr.aggr_num + 2 >
962 adapter->bus_aggr.tx_aggr_max_num) {
963
964
965
966 f_send_aggr_buf = 1;
967 }
968 }
969 } else {
970
971 if (port->tx_aggr.aggr_num > 0) {
972
973 if (port->tx_aggr.aggr_len + skb->len + pad >
974 adapter->bus_aggr.tx_aggr_max_size) {
975
976
977
978 f_send_cur_buf = 1;
979 } else {
980
981 f_precopy_cur_buf = 1;
982 }
983
984 f_send_aggr_buf = 1;
985 } else {
986
987
988
989 f_send_cur_buf = 1;
990 }
991 }
992
993 if (local_tx_pd->flags & MWIFIEX_TxPD_POWER_MGMT_NULL_PACKET) {
994
995 if (f_precopy_cur_buf) {
996 if (skb_queue_empty(&port->tx_aggr.aggr_list)) {
997 f_precopy_cur_buf = 0;
998 f_send_aggr_buf = 0;
999 f_send_cur_buf = 1;
1000 } else {
1001 f_send_aggr_buf = 1;
1002 }
1003 } else if (f_postcopy_cur_buf) {
1004 f_send_cur_buf = 1;
1005 f_postcopy_cur_buf = 0;
1006 }
1007 }
1008
1009 if (f_precopy_cur_buf) {
1010 skb_queue_tail(&port->tx_aggr.aggr_list, skb);
1011 port->tx_aggr.aggr_len += (skb->len + pad);
1012 port->tx_aggr.aggr_num++;
1013 if (f_send_aggr_buf)
1014 goto send_aggr_buf;
1015
1016
1017
1018
1019
1020
1021 if (!port->tx_aggr.timer_cnxt.is_hold_timer_set) {
1022 port->tx_aggr.timer_cnxt.hold_tmo_msecs =
1023 MWIFIEX_USB_TX_AGGR_TMO_MIN;
1024 timeout =
1025 port->tx_aggr.timer_cnxt.hold_tmo_msecs;
1026 mod_timer(&port->tx_aggr.timer_cnxt.hold_timer,
1027 jiffies + msecs_to_jiffies(timeout));
1028 port->tx_aggr.timer_cnxt.is_hold_timer_set = true;
1029 } else {
1030 if (port->tx_aggr.timer_cnxt.hold_tmo_msecs <
1031 MWIFIEX_USB_TX_AGGR_TMO_MAX) {
1032
1033 timeout =
1034 ++port->tx_aggr.timer_cnxt.hold_tmo_msecs;
1035 mod_timer(&port->tx_aggr.timer_cnxt.hold_timer,
1036 jiffies + msecs_to_jiffies(timeout));
1037 }
1038 }
1039 }
1040
1041send_aggr_buf:
1042 if (f_send_aggr_buf) {
1043 ret = mwifiex_usb_prepare_tx_aggr_skb(adapter, port, &skb_send);
1044 if (!ret) {
1045 context = &port->tx_data_list[port->tx_data_ix++];
1046 ret = mwifiex_usb_construct_send_urb(adapter, port, ep,
1047 context, skb_send);
1048 if (ret == -1)
1049 mwifiex_write_data_complete(adapter, skb_send,
1050 0, -1);
1051 }
1052 }
1053
1054 if (f_send_cur_buf) {
1055 if (f_send_aggr_buf) {
1056 if (atomic_read(&port->tx_data_urb_pending) >=
1057 MWIFIEX_TX_DATA_URB) {
1058 port->block_status = true;
1059 adapter->data_sent =
1060 mwifiex_usb_data_sent(adapter);
1061
1062 f_postcopy_cur_buf = 1;
1063 goto postcopy_cur_buf;
1064 }
1065
1066 if (port->tx_data_ix >= MWIFIEX_TX_DATA_URB)
1067 port->tx_data_ix = 0;
1068 }
1069
1070 payload = skb->data;
1071 *(u16 *)&payload[2] =
1072 cpu_to_le16(MWIFIEX_TYPE_AGGR_DATA_V2 | 0x80);
1073 *(u16 *)payload = cpu_to_le16(skb->len);
1074 skb_send = skb;
1075 context = &port->tx_data_list[port->tx_data_ix++];
1076 return mwifiex_usb_construct_send_urb(adapter, port, ep,
1077 context, skb_send);
1078 }
1079
1080postcopy_cur_buf:
1081 if (f_postcopy_cur_buf) {
1082 skb_queue_tail(&port->tx_aggr.aggr_list, skb);
1083 port->tx_aggr.aggr_len += (skb->len + pad);
1084 port->tx_aggr.aggr_num++;
1085
1086 if (!port->tx_aggr.timer_cnxt.is_hold_timer_set) {
1087 port->tx_aggr.timer_cnxt.hold_tmo_msecs =
1088 MWIFIEX_USB_TX_AGGR_TMO_MIN;
1089 timeout = port->tx_aggr.timer_cnxt.hold_tmo_msecs;
1090 mod_timer(&port->tx_aggr.timer_cnxt.hold_timer,
1091 jiffies + msecs_to_jiffies(timeout));
1092 port->tx_aggr.timer_cnxt.is_hold_timer_set = true;
1093 }
1094 }
1095
1096 return -EINPROGRESS;
1097}
1098
1099static void mwifiex_usb_tx_aggr_tmo(unsigned long context)
1100{
1101 struct urb_context *urb_cnxt = NULL;
1102 struct sk_buff *skb_send = NULL;
1103 struct tx_aggr_tmr_cnxt *timer_context =
1104 (struct tx_aggr_tmr_cnxt *)context;
1105 struct mwifiex_adapter *adapter = timer_context->adapter;
1106 struct usb_tx_data_port *port = timer_context->port;
1107 unsigned long flags;
1108 int err = 0;
1109
1110 spin_lock_irqsave(&port->tx_aggr_lock, flags);
1111 err = mwifiex_usb_prepare_tx_aggr_skb(adapter, port, &skb_send);
1112 if (err) {
1113 mwifiex_dbg(adapter, ERROR,
1114 "prepare tx aggr skb failed, err=%d\n", err);
1115 goto unlock;
1116 }
1117
1118 if (atomic_read(&port->tx_data_urb_pending) >=
1119 MWIFIEX_TX_DATA_URB) {
1120 port->block_status = true;
1121 adapter->data_sent =
1122 mwifiex_usb_data_sent(adapter);
1123 err = -1;
1124 goto done;
1125 }
1126
1127 if (port->tx_data_ix >= MWIFIEX_TX_DATA_URB)
1128 port->tx_data_ix = 0;
1129
1130 urb_cnxt = &port->tx_data_list[port->tx_data_ix++];
1131 err = mwifiex_usb_construct_send_urb(adapter, port, port->tx_data_ep,
1132 urb_cnxt, skb_send);
1133done:
1134 if (err == -1)
1135 mwifiex_write_data_complete(adapter, skb_send, 0, -1);
1136unlock:
1137 spin_unlock_irqrestore(&port->tx_aggr_lock, flags);
1138}
1139
1140
1141static int mwifiex_usb_host_to_card(struct mwifiex_adapter *adapter, u8 ep,
1142 struct sk_buff *skb,
1143 struct mwifiex_tx_param *tx_param)
1144{
1145 struct usb_card_rec *card = adapter->card;
1146 struct urb_context *context = NULL;
1147 struct usb_tx_data_port *port = NULL;
1148 unsigned long flags;
1149 int idx, ret;
1150
1151 if (adapter->is_suspended) {
1152 mwifiex_dbg(adapter, ERROR,
1153 "%s: not allowed while suspended\n", __func__);
1154 return -1;
1155 }
1156
1157 if (adapter->surprise_removed) {
1158 mwifiex_dbg(adapter, ERROR, "%s: device removed\n", __func__);
1159 return -1;
1160 }
1161
1162 mwifiex_dbg(adapter, INFO, "%s: ep=%d\n", __func__, ep);
1163
1164 if (ep == card->tx_cmd_ep) {
1165 context = &card->tx_cmd;
1166 } else {
1167
1168 for (idx = 0; idx < MWIFIEX_TX_DATA_PORT; idx++) {
1169 if (ep == card->port[idx].tx_data_ep) {
1170 port = &card->port[idx];
1171 if (atomic_read(&port->tx_data_urb_pending)
1172 >= MWIFIEX_TX_DATA_URB) {
1173 port->block_status = true;
1174 adapter->data_sent =
1175 mwifiex_usb_data_sent(adapter);
1176 return -EBUSY;
1177 }
1178 if (port->tx_data_ix >= MWIFIEX_TX_DATA_URB)
1179 port->tx_data_ix = 0;
1180 break;
1181 }
1182 }
1183
1184 if (!port) {
1185 mwifiex_dbg(adapter, ERROR, "Wrong usb tx data port\n");
1186 return -1;
1187 }
1188
1189 if (adapter->bus_aggr.enable) {
1190 spin_lock_irqsave(&port->tx_aggr_lock, flags);
1191 ret = mwifiex_usb_aggr_tx_data(adapter, ep, skb,
1192 tx_param, port);
1193 spin_unlock_irqrestore(&port->tx_aggr_lock, flags);
1194 return ret;
1195 }
1196
1197 context = &port->tx_data_list[port->tx_data_ix++];
1198 }
1199
1200 return mwifiex_usb_construct_send_urb(adapter, port, ep, context, skb);
1201}
1202
1203static int mwifiex_usb_tx_init(struct mwifiex_adapter *adapter)
1204{
1205 struct usb_card_rec *card = (struct usb_card_rec *)adapter->card;
1206 struct usb_tx_data_port *port;
1207 int i, j;
1208
1209 card->tx_cmd.adapter = adapter;
1210 card->tx_cmd.ep = card->tx_cmd_ep;
1211
1212 card->tx_cmd.urb = usb_alloc_urb(0, GFP_KERNEL);
1213 if (!card->tx_cmd.urb)
1214 return -ENOMEM;
1215
1216 for (i = 0; i < MWIFIEX_TX_DATA_PORT; i++) {
1217 port = &card->port[i];
1218 if (!port->tx_data_ep)
1219 continue;
1220 port->tx_data_ix = 0;
1221 skb_queue_head_init(&port->tx_aggr.aggr_list);
1222 if (port->tx_data_ep == MWIFIEX_USB_EP_DATA)
1223 port->block_status = false;
1224 else
1225 port->block_status = true;
1226 for (j = 0; j < MWIFIEX_TX_DATA_URB; j++) {
1227 port->tx_data_list[j].adapter = adapter;
1228 port->tx_data_list[j].ep = port->tx_data_ep;
1229 port->tx_data_list[j].urb =
1230 usb_alloc_urb(0, GFP_KERNEL);
1231 if (!port->tx_data_list[j].urb)
1232 return -ENOMEM;
1233 }
1234
1235 port->tx_aggr.timer_cnxt.adapter = adapter;
1236 port->tx_aggr.timer_cnxt.port = port;
1237 port->tx_aggr.timer_cnxt.is_hold_timer_set = false;
1238 port->tx_aggr.timer_cnxt.hold_tmo_msecs = 0;
1239 setup_timer(&port->tx_aggr.timer_cnxt.hold_timer,
1240 mwifiex_usb_tx_aggr_tmo,
1241 (unsigned long)&port->tx_aggr.timer_cnxt);
1242 }
1243
1244 return 0;
1245}
1246
1247static int mwifiex_usb_rx_init(struct mwifiex_adapter *adapter)
1248{
1249 struct usb_card_rec *card = (struct usb_card_rec *)adapter->card;
1250 int i;
1251
1252 card->rx_cmd.adapter = adapter;
1253 card->rx_cmd.ep = card->rx_cmd_ep;
1254
1255 card->rx_cmd.urb = usb_alloc_urb(0, GFP_KERNEL);
1256 if (!card->rx_cmd.urb)
1257 return -ENOMEM;
1258
1259 card->rx_cmd.skb = dev_alloc_skb(MWIFIEX_RX_CMD_BUF_SIZE);
1260 if (!card->rx_cmd.skb)
1261 return -ENOMEM;
1262
1263 if (mwifiex_usb_submit_rx_urb(&card->rx_cmd, MWIFIEX_RX_CMD_BUF_SIZE))
1264 return -1;
1265
1266 for (i = 0; i < MWIFIEX_RX_DATA_URB; i++) {
1267 card->rx_data_list[i].adapter = adapter;
1268 card->rx_data_list[i].ep = card->rx_data_ep;
1269
1270 card->rx_data_list[i].urb = usb_alloc_urb(0, GFP_KERNEL);
1271 if (!card->rx_data_list[i].urb)
1272 return -1;
1273 if (mwifiex_usb_submit_rx_urb(&card->rx_data_list[i],
1274 MWIFIEX_RX_DATA_BUF_SIZE))
1275 return -1;
1276 }
1277
1278 return 0;
1279}
1280
1281
1282static int mwifiex_register_dev(struct mwifiex_adapter *adapter)
1283{
1284 struct usb_card_rec *card = (struct usb_card_rec *)adapter->card;
1285
1286 card->adapter = adapter;
1287
1288 switch (le16_to_cpu(card->udev->descriptor.idProduct)) {
1289 case USB8997_PID_1:
1290 case USB8997_PID_2:
1291 adapter->tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_4K;
1292 strcpy(adapter->fw_name, USB8997_DEFAULT_FW_NAME);
1293 adapter->ext_scan = true;
1294 break;
1295 case USB8766_PID_1:
1296 case USB8766_PID_2:
1297 adapter->tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K;
1298 strcpy(adapter->fw_name, USB8766_DEFAULT_FW_NAME);
1299 adapter->ext_scan = true;
1300 break;
1301 case USB8801_PID_1:
1302 case USB8801_PID_2:
1303 adapter->tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K;
1304 strcpy(adapter->fw_name, USB8801_DEFAULT_FW_NAME);
1305 adapter->ext_scan = false;
1306 break;
1307 case USB8797_PID_1:
1308 case USB8797_PID_2:
1309 default:
1310 adapter->tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K;
1311 strcpy(adapter->fw_name, USB8797_DEFAULT_FW_NAME);
1312 break;
1313 }
1314
1315 adapter->usb_mc_status = false;
1316 adapter->usb_mc_setup = false;
1317
1318 return 0;
1319}
1320
1321static void mwifiex_usb_cleanup_tx_aggr(struct mwifiex_adapter *adapter)
1322{
1323 struct usb_card_rec *card = (struct usb_card_rec *)adapter->card;
1324 struct usb_tx_data_port *port;
1325 struct sk_buff *skb_tmp;
1326 int idx;
1327
1328 for (idx = 0; idx < MWIFIEX_TX_DATA_PORT; idx++) {
1329 port = &card->port[idx];
1330 if (adapter->bus_aggr.enable)
1331 while ((skb_tmp =
1332 skb_dequeue(&port->tx_aggr.aggr_list)))
1333 mwifiex_write_data_complete(adapter, skb_tmp,
1334 0, -1);
1335 del_timer_sync(&port->tx_aggr.timer_cnxt.hold_timer);
1336 port->tx_aggr.timer_cnxt.is_hold_timer_set = false;
1337 port->tx_aggr.timer_cnxt.hold_tmo_msecs = 0;
1338 }
1339}
1340
1341static void mwifiex_unregister_dev(struct mwifiex_adapter *adapter)
1342{
1343 struct usb_card_rec *card = (struct usb_card_rec *)adapter->card;
1344
1345 mwifiex_usb_cleanup_tx_aggr(adapter);
1346
1347 card->adapter = NULL;
1348}
1349
1350static int mwifiex_prog_fw_w_helper(struct mwifiex_adapter *adapter,
1351 struct mwifiex_fw_image *fw)
1352{
1353 int ret = 0;
1354 u8 *firmware = fw->fw_buf, *recv_buff;
1355 u32 retries = USB8XXX_FW_MAX_RETRY + 1;
1356 u32 dlen;
1357 u32 fw_seqnum = 0, tlen = 0, dnld_cmd = 0;
1358 struct fw_data *fwdata;
1359 struct fw_sync_header sync_fw;
1360 u8 check_winner = 1;
1361
1362 if (!firmware) {
1363 mwifiex_dbg(adapter, ERROR,
1364 "No firmware image found! Terminating download\n");
1365 ret = -1;
1366 goto fw_exit;
1367 }
1368
1369
1370 fwdata = kzalloc(FW_DNLD_TX_BUF_SIZE, GFP_KERNEL);
1371 if (!fwdata) {
1372 ret = -ENOMEM;
1373 goto fw_exit;
1374 }
1375
1376
1377 recv_buff = kzalloc(FW_DNLD_RX_BUF_SIZE, GFP_KERNEL);
1378 if (!recv_buff) {
1379 ret = -ENOMEM;
1380 goto cleanup;
1381 }
1382
1383 do {
1384
1385 if (check_winner) {
1386 memset(&fwdata->fw_hdr, 0, sizeof(struct fw_header));
1387 dlen = 0;
1388 } else {
1389
1390 memcpy(&fwdata->fw_hdr, &firmware[tlen],
1391 sizeof(struct fw_header));
1392
1393 dlen = le32_to_cpu(fwdata->fw_hdr.data_len);
1394 dnld_cmd = le32_to_cpu(fwdata->fw_hdr.dnld_cmd);
1395 tlen += sizeof(struct fw_header);
1396
1397
1398 if (dnld_cmd == FW_CMD_7)
1399 dlen = 0;
1400
1401 memcpy(fwdata->data, &firmware[tlen], dlen);
1402
1403 fwdata->seq_num = cpu_to_le32(fw_seqnum);
1404 tlen += dlen;
1405 }
1406
1407
1408 while (--retries) {
1409 u8 *buf = (u8 *)fwdata;
1410 u32 len = FW_DATA_XMIT_SIZE;
1411
1412
1413 ret = mwifiex_write_data_sync(adapter, buf, &len,
1414 MWIFIEX_USB_EP_CMD_EVENT,
1415 MWIFIEX_USB_TIMEOUT);
1416 if (ret) {
1417 mwifiex_dbg(adapter, ERROR,
1418 "write_data_sync: failed: %d\n",
1419 ret);
1420 continue;
1421 }
1422
1423 buf = recv_buff;
1424 len = FW_DNLD_RX_BUF_SIZE;
1425
1426
1427 ret = mwifiex_read_data_sync(adapter, buf, &len,
1428 MWIFIEX_USB_EP_CMD_EVENT,
1429 MWIFIEX_USB_TIMEOUT);
1430 if (ret) {
1431 mwifiex_dbg(adapter, ERROR,
1432 "read_data_sync: failed: %d\n",
1433 ret);
1434 continue;
1435 }
1436
1437 memcpy(&sync_fw, recv_buff,
1438 sizeof(struct fw_sync_header));
1439
1440
1441 if (check_winner) {
1442 if (le32_to_cpu(sync_fw.cmd) & 0x80000000) {
1443 mwifiex_dbg(adapter, WARN,
1444 "USB is not the winner %#x\n",
1445 sync_fw.cmd);
1446
1447
1448 ret = 0;
1449 goto cleanup;
1450 }
1451
1452 mwifiex_dbg(adapter, MSG,
1453 "start to download FW...\n");
1454
1455 check_winner = 0;
1456 break;
1457 }
1458
1459
1460 if (sync_fw.cmd) {
1461 mwifiex_dbg(adapter, ERROR,
1462 "FW received block with CRC %#x\n",
1463 sync_fw.cmd);
1464 ret = -1;
1465 continue;
1466 }
1467
1468 retries = USB8XXX_FW_MAX_RETRY + 1;
1469 break;
1470 }
1471 fw_seqnum++;
1472 } while ((dnld_cmd != FW_HAS_LAST_BLOCK) && retries);
1473
1474cleanup:
1475 mwifiex_dbg(adapter, MSG,
1476 "info: FW download over, size %d bytes\n", tlen);
1477
1478 kfree(recv_buff);
1479 kfree(fwdata);
1480
1481 if (retries)
1482 ret = 0;
1483fw_exit:
1484 return ret;
1485}
1486
1487static int mwifiex_usb_dnld_fw(struct mwifiex_adapter *adapter,
1488 struct mwifiex_fw_image *fw)
1489{
1490 int ret;
1491 struct usb_card_rec *card = (struct usb_card_rec *)adapter->card;
1492
1493 if (card->usb_boot_state == USB8XXX_FW_DNLD) {
1494 ret = mwifiex_prog_fw_w_helper(adapter, fw);
1495 if (ret)
1496 return -1;
1497
1498
1499 if (card->usb_boot_state == USB8XXX_FW_DNLD)
1500 return -1;
1501 }
1502
1503 ret = mwifiex_usb_rx_init(adapter);
1504 if (!ret)
1505 ret = mwifiex_usb_tx_init(adapter);
1506
1507 return ret;
1508}
1509
1510static void mwifiex_submit_rx_urb(struct mwifiex_adapter *adapter, u8 ep)
1511{
1512 struct usb_card_rec *card = (struct usb_card_rec *)adapter->card;
1513
1514 skb_push(card->rx_cmd.skb, INTF_HEADER_LEN);
1515 if ((ep == card->rx_cmd_ep) &&
1516 (!atomic_read(&card->rx_cmd_urb_pending)))
1517 mwifiex_usb_submit_rx_urb(&card->rx_cmd,
1518 MWIFIEX_RX_CMD_BUF_SIZE);
1519
1520 return;
1521}
1522
1523static int mwifiex_usb_cmd_event_complete(struct mwifiex_adapter *adapter,
1524 struct sk_buff *skb)
1525{
1526 mwifiex_submit_rx_urb(adapter, MWIFIEX_USB_EP_CMD_EVENT);
1527
1528 return 0;
1529}
1530
1531
1532static int mwifiex_pm_wakeup_card(struct mwifiex_adapter *adapter)
1533{
1534
1535 adapter->pm_wakeup_fw_try = false;
1536 del_timer(&adapter->wakeup_timer);
1537 adapter->pm_wakeup_card_req = false;
1538 adapter->ps_state = PS_STATE_AWAKE;
1539
1540 return 0;
1541}
1542
1543static void mwifiex_usb_submit_rem_rx_urbs(struct mwifiex_adapter *adapter)
1544{
1545 struct usb_card_rec *card = (struct usb_card_rec *)adapter->card;
1546 int i;
1547 struct urb_context *ctx;
1548
1549 for (i = 0; i < MWIFIEX_RX_DATA_URB; i++) {
1550 if (card->rx_data_list[i].skb)
1551 continue;
1552 ctx = &card->rx_data_list[i];
1553 mwifiex_usb_submit_rx_urb(ctx, MWIFIEX_RX_DATA_BUF_SIZE);
1554 }
1555}
1556
1557
1558static inline int
1559mwifiex_pm_wakeup_card_complete(struct mwifiex_adapter *adapter)
1560{
1561 return 0;
1562}
1563
1564static struct mwifiex_if_ops usb_ops = {
1565 .register_dev = mwifiex_register_dev,
1566 .unregister_dev = mwifiex_unregister_dev,
1567 .wakeup = mwifiex_pm_wakeup_card,
1568 .wakeup_complete = mwifiex_pm_wakeup_card_complete,
1569
1570
1571 .dnld_fw = mwifiex_usb_dnld_fw,
1572 .cmdrsp_complete = mwifiex_usb_cmd_event_complete,
1573 .event_complete = mwifiex_usb_cmd_event_complete,
1574 .host_to_card = mwifiex_usb_host_to_card,
1575 .submit_rem_rx_urbs = mwifiex_usb_submit_rem_rx_urbs,
1576 .multi_port_resync = mwifiex_usb_port_resync,
1577 .is_port_ready = mwifiex_usb_is_port_ready,
1578};
1579
1580module_usb_driver(mwifiex_usb_driver);
1581
1582MODULE_AUTHOR("Marvell International Ltd.");
1583MODULE_DESCRIPTION("Marvell WiFi-Ex USB Driver version" USB_VERSION);
1584MODULE_VERSION(USB_VERSION);
1585MODULE_LICENSE("GPL v2");
1586MODULE_FIRMWARE(USB8766_DEFAULT_FW_NAME);
1587MODULE_FIRMWARE(USB8797_DEFAULT_FW_NAME);
1588MODULE_FIRMWARE(USB8801_DEFAULT_FW_NAME);
1589MODULE_FIRMWARE(USB8997_DEFAULT_FW_NAME);
1590
