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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_dbg(adapter, FATAL,
648 "%s: removing card\n", __func__);
649 mwifiex_remove_card(adapter);
650
651 usb_put_dev(interface_to_usbdev(intf));
652}
653
654static void mwifiex_usb_coredump(struct device *dev)
655{
656 struct usb_interface *intf = to_usb_interface(dev);
657 struct usb_card_rec *card = usb_get_intfdata(intf);
658
659 mwifiex_fw_dump_event(mwifiex_get_priv(card->adapter,
660 MWIFIEX_BSS_ROLE_ANY));
661}
662
663static struct usb_driver mwifiex_usb_driver = {
664 .name = "mwifiex_usb",
665 .probe = mwifiex_usb_probe,
666 .disconnect = mwifiex_usb_disconnect,
667 .id_table = mwifiex_usb_table,
668 .suspend = mwifiex_usb_suspend,
669 .resume = mwifiex_usb_resume,
670 .soft_unbind = 1,
671 .drvwrap.driver = {
672 .coredump = mwifiex_usb_coredump,
673 },
674};
675
676static int mwifiex_write_data_sync(struct mwifiex_adapter *adapter, u8 *pbuf,
677 u32 *len, u8 ep, u32 timeout)
678{
679 struct usb_card_rec *card = adapter->card;
680 int actual_length, ret;
681
682 if (!(*len % card->bulk_out_maxpktsize))
683 (*len)++;
684
685
686 ret = usb_bulk_msg(card->udev, usb_sndbulkpipe(card->udev, ep), pbuf,
687 *len, &actual_length, timeout);
688 if (ret) {
689 mwifiex_dbg(adapter, ERROR,
690 "usb_bulk_msg for tx failed: %d\n", ret);
691 return ret;
692 }
693
694 *len = actual_length;
695
696 return ret;
697}
698
699static int mwifiex_read_data_sync(struct mwifiex_adapter *adapter, u8 *pbuf,
700 u32 *len, u8 ep, u32 timeout)
701{
702 struct usb_card_rec *card = adapter->card;
703 int actual_length, ret;
704
705
706 ret = usb_bulk_msg(card->udev, usb_rcvbulkpipe(card->udev, ep), pbuf,
707 *len, &actual_length, timeout);
708 if (ret) {
709 mwifiex_dbg(adapter, ERROR,
710 "usb_bulk_msg for rx failed: %d\n", ret);
711 return ret;
712 }
713
714 *len = actual_length;
715
716 return ret;
717}
718
719static void mwifiex_usb_port_resync(struct mwifiex_adapter *adapter)
720{
721 struct usb_card_rec *card = adapter->card;
722 u8 active_port = MWIFIEX_USB_EP_DATA;
723 struct mwifiex_private *priv = NULL;
724 int i;
725
726 if (adapter->usb_mc_status) {
727 for (i = 0; i < adapter->priv_num; i++) {
728 priv = adapter->priv[i];
729 if (!priv)
730 continue;
731 if ((priv->bss_role == MWIFIEX_BSS_ROLE_UAP &&
732 !priv->bss_started) ||
733 (priv->bss_role == MWIFIEX_BSS_ROLE_STA &&
734 !priv->media_connected))
735 priv->usb_port = MWIFIEX_USB_EP_DATA;
736 }
737 for (i = 0; i < MWIFIEX_TX_DATA_PORT; i++)
738 card->port[i].block_status = false;
739 } else {
740 for (i = 0; i < adapter->priv_num; i++) {
741 priv = adapter->priv[i];
742 if (!priv)
743 continue;
744 if ((priv->bss_role == MWIFIEX_BSS_ROLE_UAP &&
745 priv->bss_started) ||
746 (priv->bss_role == MWIFIEX_BSS_ROLE_STA &&
747 priv->media_connected)) {
748 active_port = priv->usb_port;
749 break;
750 }
751 }
752 for (i = 0; i < adapter->priv_num; i++) {
753 priv = adapter->priv[i];
754 if (priv)
755 priv->usb_port = active_port;
756 }
757 for (i = 0; i < MWIFIEX_TX_DATA_PORT; i++) {
758 if (active_port == card->port[i].tx_data_ep)
759 card->port[i].block_status = false;
760 else
761 card->port[i].block_status = true;
762 }
763 }
764}
765
766static bool mwifiex_usb_is_port_ready(struct mwifiex_private *priv)
767{
768 struct usb_card_rec *card = priv->adapter->card;
769 int idx;
770
771 for (idx = 0; idx < MWIFIEX_TX_DATA_PORT; idx++) {
772 if (priv->usb_port == card->port[idx].tx_data_ep)
773 return !card->port[idx].block_status;
774 }
775
776 return false;
777}
778
779static inline u8 mwifiex_usb_data_sent(struct mwifiex_adapter *adapter)
780{
781 struct usb_card_rec *card = adapter->card;
782 int i;
783
784 for (i = 0; i < MWIFIEX_TX_DATA_PORT; i++)
785 if (!card->port[i].block_status)
786 return false;
787
788 return true;
789}
790
791static int mwifiex_usb_construct_send_urb(struct mwifiex_adapter *adapter,
792 struct usb_tx_data_port *port, u8 ep,
793 struct urb_context *context,
794 struct sk_buff *skb_send)
795{
796 struct usb_card_rec *card = adapter->card;
797 int ret = -EINPROGRESS;
798 struct urb *tx_urb;
799
800 context->adapter = adapter;
801 context->ep = ep;
802 context->skb = skb_send;
803 tx_urb = context->urb;
804
805 if (ep == card->tx_cmd_ep &&
806 card->tx_cmd_ep_type == USB_ENDPOINT_XFER_INT)
807 usb_fill_int_urb(tx_urb, card->udev,
808 usb_sndintpipe(card->udev, ep), skb_send->data,
809 skb_send->len, mwifiex_usb_tx_complete,
810 (void *)context, card->tx_cmd_interval);
811 else
812 usb_fill_bulk_urb(tx_urb, card->udev,
813 usb_sndbulkpipe(card->udev, ep),
814 skb_send->data, skb_send->len,
815 mwifiex_usb_tx_complete, (void *)context);
816
817 tx_urb->transfer_flags |= URB_ZERO_PACKET;
818
819 if (ep == card->tx_cmd_ep)
820 atomic_inc(&card->tx_cmd_urb_pending);
821 else
822 atomic_inc(&port->tx_data_urb_pending);
823
824 if (ep != card->tx_cmd_ep &&
825 atomic_read(&port->tx_data_urb_pending) ==
826 MWIFIEX_TX_DATA_URB) {
827 port->block_status = true;
828 adapter->data_sent = mwifiex_usb_data_sent(adapter);
829 ret = -ENOSR;
830 }
831
832 if (usb_submit_urb(tx_urb, GFP_ATOMIC)) {
833 mwifiex_dbg(adapter, ERROR,
834 "%s: usb_submit_urb failed\n", __func__);
835 if (ep == card->tx_cmd_ep) {
836 atomic_dec(&card->tx_cmd_urb_pending);
837 } else {
838 atomic_dec(&port->tx_data_urb_pending);
839 port->block_status = false;
840 adapter->data_sent = false;
841 if (port->tx_data_ix)
842 port->tx_data_ix--;
843 else
844 port->tx_data_ix = MWIFIEX_TX_DATA_URB;
845 }
846 ret = -1;
847 }
848
849 return ret;
850}
851
852static int mwifiex_usb_prepare_tx_aggr_skb(struct mwifiex_adapter *adapter,
853 struct usb_tx_data_port *port,
854 struct sk_buff **skb_send)
855{
856 struct sk_buff *skb_aggr, *skb_tmp;
857 u8 *payload, pad;
858 u16 align = adapter->bus_aggr.tx_aggr_align;
859 struct mwifiex_txinfo *tx_info = NULL;
860 bool is_txinfo_set = false;
861
862
863
864
865 if (port->tx_aggr.timer_cnxt.is_hold_timer_set) {
866 del_timer(&port->tx_aggr.timer_cnxt.hold_timer);
867 port->tx_aggr.timer_cnxt.is_hold_timer_set = false;
868 port->tx_aggr.timer_cnxt.hold_tmo_msecs = 0;
869 }
870
871 skb_aggr = mwifiex_alloc_dma_align_buf(port->tx_aggr.aggr_len,
872 GFP_ATOMIC);
873 if (!skb_aggr) {
874 mwifiex_dbg(adapter, ERROR,
875 "%s: alloc skb_aggr failed\n", __func__);
876
877 while ((skb_tmp = skb_dequeue(&port->tx_aggr.aggr_list)))
878 mwifiex_write_data_complete(adapter, skb_tmp, 0, -1);
879
880 port->tx_aggr.aggr_num = 0;
881 port->tx_aggr.aggr_len = 0;
882 return -EBUSY;
883 }
884
885 tx_info = MWIFIEX_SKB_TXCB(skb_aggr);
886 memset(tx_info, 0, sizeof(*tx_info));
887
888 while ((skb_tmp = skb_dequeue(&port->tx_aggr.aggr_list))) {
889
890 pad = (align - (skb_tmp->len & (align - 1))) % align;
891 payload = skb_put(skb_aggr, skb_tmp->len + pad);
892 memcpy(payload, skb_tmp->data, skb_tmp->len);
893 if (skb_queue_empty(&port->tx_aggr.aggr_list)) {
894
895 *(u16 *)payload = cpu_to_le16(skb_tmp->len);
896 *(u16 *)&payload[2] =
897 cpu_to_le16(MWIFIEX_TYPE_AGGR_DATA_V2 | 0x80);
898 skb_trim(skb_aggr, skb_aggr->len - pad);
899 } else {
900
901 *(u16 *)payload = cpu_to_le16(skb_tmp->len + pad);
902 *(u16 *)&payload[2] =
903 cpu_to_le16(MWIFIEX_TYPE_AGGR_DATA_V2);
904 }
905
906 if (!is_txinfo_set) {
907 tx_info->bss_num = MWIFIEX_SKB_TXCB(skb_tmp)->bss_num;
908 tx_info->bss_type = MWIFIEX_SKB_TXCB(skb_tmp)->bss_type;
909 is_txinfo_set = true;
910 }
911
912 port->tx_aggr.aggr_num--;
913 port->tx_aggr.aggr_len -= (skb_tmp->len + pad);
914 mwifiex_write_data_complete(adapter, skb_tmp, 0, 0);
915 }
916
917 tx_info->pkt_len = skb_aggr->len -
918 (sizeof(struct txpd) + adapter->intf_hdr_len);
919 tx_info->flags |= MWIFIEX_BUF_FLAG_AGGR_PKT;
920
921 port->tx_aggr.aggr_num = 0;
922 port->tx_aggr.aggr_len = 0;
923 *skb_send = skb_aggr;
924
925 return 0;
926}
927
928
929
930
931
932
933
934
935
936
937static int mwifiex_usb_aggr_tx_data(struct mwifiex_adapter *adapter, u8 ep,
938 struct sk_buff *skb,
939 struct mwifiex_tx_param *tx_param,
940 struct usb_tx_data_port *port)
941{
942 u8 *payload, pad;
943 u16 align = adapter->bus_aggr.tx_aggr_align;
944 struct sk_buff *skb_send = NULL;
945 struct urb_context *context = NULL;
946 struct txpd *local_tx_pd =
947 (struct txpd *)((u8 *)skb->data + adapter->intf_hdr_len);
948 u8 f_send_aggr_buf = 0;
949 u8 f_send_cur_buf = 0;
950 u8 f_precopy_cur_buf = 0;
951 u8 f_postcopy_cur_buf = 0;
952 u32 timeout;
953 int ret;
954
955
956 pad = (align - (skb->len & (align - 1))) % align;
957
958 if (tx_param && tx_param->next_pkt_len) {
959
960 if (port->tx_aggr.aggr_len + skb->len + pad >
961 adapter->bus_aggr.tx_aggr_max_size) {
962 f_send_aggr_buf = 1;
963 f_postcopy_cur_buf = 1;
964 } else {
965
966 f_precopy_cur_buf = 1;
967
968 if (port->tx_aggr.aggr_len + skb->len + pad +
969 tx_param->next_pkt_len >
970 adapter->bus_aggr.tx_aggr_max_size ||
971 port->tx_aggr.aggr_num + 2 >
972 adapter->bus_aggr.tx_aggr_max_num) {
973
974
975
976 f_send_aggr_buf = 1;
977 }
978 }
979 } else {
980
981 if (port->tx_aggr.aggr_num > 0) {
982
983 if (port->tx_aggr.aggr_len + skb->len + pad >
984 adapter->bus_aggr.tx_aggr_max_size) {
985
986
987
988 f_send_cur_buf = 1;
989 } else {
990
991 f_precopy_cur_buf = 1;
992 }
993
994 f_send_aggr_buf = 1;
995 } else {
996
997
998
999 f_send_cur_buf = 1;
1000 }
1001 }
1002
1003 if (local_tx_pd->flags & MWIFIEX_TxPD_POWER_MGMT_NULL_PACKET) {
1004
1005 if (f_precopy_cur_buf) {
1006 if (skb_queue_empty(&port->tx_aggr.aggr_list)) {
1007 f_precopy_cur_buf = 0;
1008 f_send_aggr_buf = 0;
1009 f_send_cur_buf = 1;
1010 } else {
1011 f_send_aggr_buf = 1;
1012 }
1013 } else if (f_postcopy_cur_buf) {
1014 f_send_cur_buf = 1;
1015 f_postcopy_cur_buf = 0;
1016 }
1017 }
1018
1019 if (f_precopy_cur_buf) {
1020 skb_queue_tail(&port->tx_aggr.aggr_list, skb);
1021 port->tx_aggr.aggr_len += (skb->len + pad);
1022 port->tx_aggr.aggr_num++;
1023 if (f_send_aggr_buf)
1024 goto send_aggr_buf;
1025
1026
1027
1028
1029
1030
1031 if (!port->tx_aggr.timer_cnxt.is_hold_timer_set) {
1032 port->tx_aggr.timer_cnxt.hold_tmo_msecs =
1033 MWIFIEX_USB_TX_AGGR_TMO_MIN;
1034 timeout =
1035 port->tx_aggr.timer_cnxt.hold_tmo_msecs;
1036 mod_timer(&port->tx_aggr.timer_cnxt.hold_timer,
1037 jiffies + msecs_to_jiffies(timeout));
1038 port->tx_aggr.timer_cnxt.is_hold_timer_set = true;
1039 } else {
1040 if (port->tx_aggr.timer_cnxt.hold_tmo_msecs <
1041 MWIFIEX_USB_TX_AGGR_TMO_MAX) {
1042
1043 timeout =
1044 ++port->tx_aggr.timer_cnxt.hold_tmo_msecs;
1045 mod_timer(&port->tx_aggr.timer_cnxt.hold_timer,
1046 jiffies + msecs_to_jiffies(timeout));
1047 }
1048 }
1049 }
1050
1051send_aggr_buf:
1052 if (f_send_aggr_buf) {
1053 ret = mwifiex_usb_prepare_tx_aggr_skb(adapter, port, &skb_send);
1054 if (!ret) {
1055 context = &port->tx_data_list[port->tx_data_ix++];
1056 ret = mwifiex_usb_construct_send_urb(adapter, port, ep,
1057 context, skb_send);
1058 if (ret == -1)
1059 mwifiex_write_data_complete(adapter, skb_send,
1060 0, -1);
1061 }
1062 }
1063
1064 if (f_send_cur_buf) {
1065 if (f_send_aggr_buf) {
1066 if (atomic_read(&port->tx_data_urb_pending) >=
1067 MWIFIEX_TX_DATA_URB) {
1068 port->block_status = true;
1069 adapter->data_sent =
1070 mwifiex_usb_data_sent(adapter);
1071
1072 f_postcopy_cur_buf = 1;
1073 goto postcopy_cur_buf;
1074 }
1075
1076 if (port->tx_data_ix >= MWIFIEX_TX_DATA_URB)
1077 port->tx_data_ix = 0;
1078 }
1079
1080 payload = skb->data;
1081 *(u16 *)&payload[2] =
1082 cpu_to_le16(MWIFIEX_TYPE_AGGR_DATA_V2 | 0x80);
1083 *(u16 *)payload = cpu_to_le16(skb->len);
1084 skb_send = skb;
1085 context = &port->tx_data_list[port->tx_data_ix++];
1086 return mwifiex_usb_construct_send_urb(adapter, port, ep,
1087 context, skb_send);
1088 }
1089
1090postcopy_cur_buf:
1091 if (f_postcopy_cur_buf) {
1092 skb_queue_tail(&port->tx_aggr.aggr_list, skb);
1093 port->tx_aggr.aggr_len += (skb->len + pad);
1094 port->tx_aggr.aggr_num++;
1095
1096 if (!port->tx_aggr.timer_cnxt.is_hold_timer_set) {
1097 port->tx_aggr.timer_cnxt.hold_tmo_msecs =
1098 MWIFIEX_USB_TX_AGGR_TMO_MIN;
1099 timeout = port->tx_aggr.timer_cnxt.hold_tmo_msecs;
1100 mod_timer(&port->tx_aggr.timer_cnxt.hold_timer,
1101 jiffies + msecs_to_jiffies(timeout));
1102 port->tx_aggr.timer_cnxt.is_hold_timer_set = true;
1103 }
1104 }
1105
1106 return -EINPROGRESS;
1107}
1108
1109static void mwifiex_usb_tx_aggr_tmo(struct timer_list *t)
1110{
1111 struct urb_context *urb_cnxt = NULL;
1112 struct sk_buff *skb_send = NULL;
1113 struct tx_aggr_tmr_cnxt *timer_context =
1114 from_timer(timer_context, t, hold_timer);
1115 struct mwifiex_adapter *adapter = timer_context->adapter;
1116 struct usb_tx_data_port *port = timer_context->port;
1117 unsigned long flags;
1118 int err = 0;
1119
1120 spin_lock_irqsave(&port->tx_aggr_lock, flags);
1121 err = mwifiex_usb_prepare_tx_aggr_skb(adapter, port, &skb_send);
1122 if (err) {
1123 mwifiex_dbg(adapter, ERROR,
1124 "prepare tx aggr skb failed, err=%d\n", err);
1125 goto unlock;
1126 }
1127
1128 if (atomic_read(&port->tx_data_urb_pending) >=
1129 MWIFIEX_TX_DATA_URB) {
1130 port->block_status = true;
1131 adapter->data_sent =
1132 mwifiex_usb_data_sent(adapter);
1133 err = -1;
1134 goto done;
1135 }
1136
1137 if (port->tx_data_ix >= MWIFIEX_TX_DATA_URB)
1138 port->tx_data_ix = 0;
1139
1140 urb_cnxt = &port->tx_data_list[port->tx_data_ix++];
1141 err = mwifiex_usb_construct_send_urb(adapter, port, port->tx_data_ep,
1142 urb_cnxt, skb_send);
1143done:
1144 if (err == -1)
1145 mwifiex_write_data_complete(adapter, skb_send, 0, -1);
1146unlock:
1147 spin_unlock_irqrestore(&port->tx_aggr_lock, flags);
1148}
1149
1150
1151static int mwifiex_usb_host_to_card(struct mwifiex_adapter *adapter, u8 ep,
1152 struct sk_buff *skb,
1153 struct mwifiex_tx_param *tx_param)
1154{
1155 struct usb_card_rec *card = adapter->card;
1156 struct urb_context *context = NULL;
1157 struct usb_tx_data_port *port = NULL;
1158 unsigned long flags;
1159 int idx, ret;
1160
1161 if (adapter->is_suspended) {
1162 mwifiex_dbg(adapter, ERROR,
1163 "%s: not allowed while suspended\n", __func__);
1164 return -1;
1165 }
1166
1167 if (adapter->surprise_removed) {
1168 mwifiex_dbg(adapter, ERROR, "%s: device removed\n", __func__);
1169 return -1;
1170 }
1171
1172 mwifiex_dbg(adapter, INFO, "%s: ep=%d\n", __func__, ep);
1173
1174 if (ep == card->tx_cmd_ep) {
1175 context = &card->tx_cmd;
1176 } else {
1177
1178 for (idx = 0; idx < MWIFIEX_TX_DATA_PORT; idx++) {
1179 if (ep == card->port[idx].tx_data_ep) {
1180 port = &card->port[idx];
1181 if (atomic_read(&port->tx_data_urb_pending)
1182 >= MWIFIEX_TX_DATA_URB) {
1183 port->block_status = true;
1184 adapter->data_sent =
1185 mwifiex_usb_data_sent(adapter);
1186 return -EBUSY;
1187 }
1188 if (port->tx_data_ix >= MWIFIEX_TX_DATA_URB)
1189 port->tx_data_ix = 0;
1190 break;
1191 }
1192 }
1193
1194 if (!port) {
1195 mwifiex_dbg(adapter, ERROR, "Wrong usb tx data port\n");
1196 return -1;
1197 }
1198
1199 if (adapter->bus_aggr.enable) {
1200 spin_lock_irqsave(&port->tx_aggr_lock, flags);
1201 ret = mwifiex_usb_aggr_tx_data(adapter, ep, skb,
1202 tx_param, port);
1203 spin_unlock_irqrestore(&port->tx_aggr_lock, flags);
1204 return ret;
1205 }
1206
1207 context = &port->tx_data_list[port->tx_data_ix++];
1208 }
1209
1210 return mwifiex_usb_construct_send_urb(adapter, port, ep, context, skb);
1211}
1212
1213static int mwifiex_usb_tx_init(struct mwifiex_adapter *adapter)
1214{
1215 struct usb_card_rec *card = (struct usb_card_rec *)adapter->card;
1216 struct usb_tx_data_port *port;
1217 int i, j;
1218
1219 card->tx_cmd.adapter = adapter;
1220 card->tx_cmd.ep = card->tx_cmd_ep;
1221
1222 card->tx_cmd.urb = usb_alloc_urb(0, GFP_KERNEL);
1223 if (!card->tx_cmd.urb)
1224 return -ENOMEM;
1225
1226 for (i = 0; i < MWIFIEX_TX_DATA_PORT; i++) {
1227 port = &card->port[i];
1228 if (!port->tx_data_ep)
1229 continue;
1230 port->tx_data_ix = 0;
1231 skb_queue_head_init(&port->tx_aggr.aggr_list);
1232 if (port->tx_data_ep == MWIFIEX_USB_EP_DATA)
1233 port->block_status = false;
1234 else
1235 port->block_status = true;
1236 for (j = 0; j < MWIFIEX_TX_DATA_URB; j++) {
1237 port->tx_data_list[j].adapter = adapter;
1238 port->tx_data_list[j].ep = port->tx_data_ep;
1239 port->tx_data_list[j].urb =
1240 usb_alloc_urb(0, GFP_KERNEL);
1241 if (!port->tx_data_list[j].urb)
1242 return -ENOMEM;
1243 }
1244
1245 port->tx_aggr.timer_cnxt.adapter = adapter;
1246 port->tx_aggr.timer_cnxt.port = port;
1247 port->tx_aggr.timer_cnxt.is_hold_timer_set = false;
1248 port->tx_aggr.timer_cnxt.hold_tmo_msecs = 0;
1249 timer_setup(&port->tx_aggr.timer_cnxt.hold_timer,
1250 mwifiex_usb_tx_aggr_tmo, 0);
1251 }
1252
1253 return 0;
1254}
1255
1256static int mwifiex_usb_rx_init(struct mwifiex_adapter *adapter)
1257{
1258 struct usb_card_rec *card = (struct usb_card_rec *)adapter->card;
1259 int i;
1260
1261 card->rx_cmd.adapter = adapter;
1262 card->rx_cmd.ep = card->rx_cmd_ep;
1263
1264 card->rx_cmd.urb = usb_alloc_urb(0, GFP_KERNEL);
1265 if (!card->rx_cmd.urb)
1266 return -ENOMEM;
1267
1268 card->rx_cmd.skb = dev_alloc_skb(MWIFIEX_RX_CMD_BUF_SIZE);
1269 if (!card->rx_cmd.skb)
1270 return -ENOMEM;
1271
1272 if (mwifiex_usb_submit_rx_urb(&card->rx_cmd, MWIFIEX_RX_CMD_BUF_SIZE))
1273 return -1;
1274
1275 for (i = 0; i < MWIFIEX_RX_DATA_URB; i++) {
1276 card->rx_data_list[i].adapter = adapter;
1277 card->rx_data_list[i].ep = card->rx_data_ep;
1278
1279 card->rx_data_list[i].urb = usb_alloc_urb(0, GFP_KERNEL);
1280 if (!card->rx_data_list[i].urb)
1281 return -1;
1282 if (mwifiex_usb_submit_rx_urb(&card->rx_data_list[i],
1283 MWIFIEX_RX_DATA_BUF_SIZE))
1284 return -1;
1285 }
1286
1287 return 0;
1288}
1289
1290
1291static int mwifiex_register_dev(struct mwifiex_adapter *adapter)
1292{
1293 struct usb_card_rec *card = (struct usb_card_rec *)adapter->card;
1294
1295 card->adapter = adapter;
1296
1297 switch (le16_to_cpu(card->udev->descriptor.idProduct)) {
1298 case USB8997_PID_1:
1299 case USB8997_PID_2:
1300 adapter->tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_4K;
1301 strcpy(adapter->fw_name, USB8997_DEFAULT_FW_NAME);
1302 adapter->ext_scan = true;
1303 break;
1304 case USB8766_PID_1:
1305 case USB8766_PID_2:
1306 adapter->tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K;
1307 strcpy(adapter->fw_name, USB8766_DEFAULT_FW_NAME);
1308 adapter->ext_scan = true;
1309 break;
1310 case USB8801_PID_1:
1311 case USB8801_PID_2:
1312 adapter->tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K;
1313 strcpy(adapter->fw_name, USB8801_DEFAULT_FW_NAME);
1314 adapter->ext_scan = false;
1315 break;
1316 case USB8797_PID_1:
1317 case USB8797_PID_2:
1318 default:
1319 adapter->tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K;
1320 strcpy(adapter->fw_name, USB8797_DEFAULT_FW_NAME);
1321 break;
1322 }
1323
1324 adapter->usb_mc_status = false;
1325 adapter->usb_mc_setup = false;
1326
1327 return 0;
1328}
1329
1330static void mwifiex_usb_cleanup_tx_aggr(struct mwifiex_adapter *adapter)
1331{
1332 struct usb_card_rec *card = (struct usb_card_rec *)adapter->card;
1333 struct usb_tx_data_port *port;
1334 struct sk_buff *skb_tmp;
1335 int idx;
1336
1337 for (idx = 0; idx < MWIFIEX_TX_DATA_PORT; idx++) {
1338 port = &card->port[idx];
1339 if (adapter->bus_aggr.enable)
1340 while ((skb_tmp =
1341 skb_dequeue(&port->tx_aggr.aggr_list)))
1342 mwifiex_write_data_complete(adapter, skb_tmp,
1343 0, -1);
1344 del_timer_sync(&port->tx_aggr.timer_cnxt.hold_timer);
1345 port->tx_aggr.timer_cnxt.is_hold_timer_set = false;
1346 port->tx_aggr.timer_cnxt.hold_tmo_msecs = 0;
1347 }
1348}
1349
1350static void mwifiex_unregister_dev(struct mwifiex_adapter *adapter)
1351{
1352 struct usb_card_rec *card = (struct usb_card_rec *)adapter->card;
1353
1354 mwifiex_usb_free(card);
1355
1356 mwifiex_usb_cleanup_tx_aggr(adapter);
1357
1358 card->adapter = NULL;
1359}
1360
1361static int mwifiex_prog_fw_w_helper(struct mwifiex_adapter *adapter,
1362 struct mwifiex_fw_image *fw)
1363{
1364 int ret = 0;
1365 u8 *firmware = fw->fw_buf, *recv_buff;
1366 u32 retries = USB8XXX_FW_MAX_RETRY + 1;
1367 u32 dlen;
1368 u32 fw_seqnum = 0, tlen = 0, dnld_cmd = 0;
1369 struct fw_data *fwdata;
1370 struct fw_sync_header sync_fw;
1371 u8 check_winner = 1;
1372
1373 if (!firmware) {
1374 mwifiex_dbg(adapter, ERROR,
1375 "No firmware image found! Terminating download\n");
1376 ret = -1;
1377 goto fw_exit;
1378 }
1379
1380
1381 fwdata = kzalloc(FW_DNLD_TX_BUF_SIZE, GFP_KERNEL);
1382 if (!fwdata) {
1383 ret = -ENOMEM;
1384 goto fw_exit;
1385 }
1386
1387
1388 recv_buff = kzalloc(FW_DNLD_RX_BUF_SIZE, GFP_KERNEL);
1389 if (!recv_buff) {
1390 ret = -ENOMEM;
1391 goto cleanup;
1392 }
1393
1394 do {
1395
1396 if (check_winner) {
1397 memset(&fwdata->fw_hdr, 0, sizeof(struct fw_header));
1398 dlen = 0;
1399 } else {
1400
1401 memcpy(&fwdata->fw_hdr, &firmware[tlen],
1402 sizeof(struct fw_header));
1403
1404 dlen = le32_to_cpu(fwdata->fw_hdr.data_len);
1405 dnld_cmd = le32_to_cpu(fwdata->fw_hdr.dnld_cmd);
1406 tlen += sizeof(struct fw_header);
1407
1408
1409 if (dnld_cmd == FW_CMD_7)
1410 dlen = 0;
1411
1412 memcpy(fwdata->data, &firmware[tlen], dlen);
1413
1414 fwdata->seq_num = cpu_to_le32(fw_seqnum);
1415 tlen += dlen;
1416 }
1417
1418
1419 while (--retries) {
1420 u8 *buf = (u8 *)fwdata;
1421 u32 len = FW_DATA_XMIT_SIZE;
1422
1423
1424 ret = mwifiex_write_data_sync(adapter, buf, &len,
1425 MWIFIEX_USB_EP_CMD_EVENT,
1426 MWIFIEX_USB_TIMEOUT);
1427 if (ret) {
1428 mwifiex_dbg(adapter, ERROR,
1429 "write_data_sync: failed: %d\n",
1430 ret);
1431 continue;
1432 }
1433
1434 buf = recv_buff;
1435 len = FW_DNLD_RX_BUF_SIZE;
1436
1437
1438 ret = mwifiex_read_data_sync(adapter, buf, &len,
1439 MWIFIEX_USB_EP_CMD_EVENT,
1440 MWIFIEX_USB_TIMEOUT);
1441 if (ret) {
1442 mwifiex_dbg(adapter, ERROR,
1443 "read_data_sync: failed: %d\n",
1444 ret);
1445 continue;
1446 }
1447
1448 memcpy(&sync_fw, recv_buff,
1449 sizeof(struct fw_sync_header));
1450
1451
1452 if (check_winner) {
1453 if (le32_to_cpu(sync_fw.cmd) & 0x80000000) {
1454 mwifiex_dbg(adapter, WARN,
1455 "USB is not the winner %#x\n",
1456 sync_fw.cmd);
1457
1458
1459 ret = 0;
1460 goto cleanup;
1461 }
1462
1463 mwifiex_dbg(adapter, MSG,
1464 "start to download FW...\n");
1465
1466 check_winner = 0;
1467 break;
1468 }
1469
1470
1471 if (sync_fw.cmd) {
1472 mwifiex_dbg(adapter, ERROR,
1473 "FW received block with CRC %#x\n",
1474 sync_fw.cmd);
1475 ret = -1;
1476 continue;
1477 }
1478
1479 retries = USB8XXX_FW_MAX_RETRY + 1;
1480 break;
1481 }
1482 fw_seqnum++;
1483 } while ((dnld_cmd != FW_HAS_LAST_BLOCK) && retries);
1484
1485cleanup:
1486 mwifiex_dbg(adapter, MSG,
1487 "info: FW download over, size %d bytes\n", tlen);
1488
1489 kfree(recv_buff);
1490 kfree(fwdata);
1491
1492 if (retries)
1493 ret = 0;
1494fw_exit:
1495 return ret;
1496}
1497
1498static int mwifiex_usb_dnld_fw(struct mwifiex_adapter *adapter,
1499 struct mwifiex_fw_image *fw)
1500{
1501 int ret;
1502 struct usb_card_rec *card = (struct usb_card_rec *)adapter->card;
1503
1504 if (card->usb_boot_state == USB8XXX_FW_DNLD) {
1505 ret = mwifiex_prog_fw_w_helper(adapter, fw);
1506 if (ret)
1507 return -1;
1508
1509
1510 if (card->usb_boot_state == USB8XXX_FW_DNLD)
1511 return -1;
1512 }
1513
1514 ret = mwifiex_usb_rx_init(adapter);
1515 if (!ret)
1516 ret = mwifiex_usb_tx_init(adapter);
1517
1518 return ret;
1519}
1520
1521static void mwifiex_submit_rx_urb(struct mwifiex_adapter *adapter, u8 ep)
1522{
1523 struct usb_card_rec *card = (struct usb_card_rec *)adapter->card;
1524
1525 skb_push(card->rx_cmd.skb, INTF_HEADER_LEN);
1526 if ((ep == card->rx_cmd_ep) &&
1527 (!atomic_read(&card->rx_cmd_urb_pending)))
1528 mwifiex_usb_submit_rx_urb(&card->rx_cmd,
1529 MWIFIEX_RX_CMD_BUF_SIZE);
1530
1531 return;
1532}
1533
1534static int mwifiex_usb_cmd_event_complete(struct mwifiex_adapter *adapter,
1535 struct sk_buff *skb)
1536{
1537 mwifiex_submit_rx_urb(adapter, MWIFIEX_USB_EP_CMD_EVENT);
1538
1539 return 0;
1540}
1541
1542
1543static int mwifiex_pm_wakeup_card(struct mwifiex_adapter *adapter)
1544{
1545
1546 adapter->pm_wakeup_fw_try = false;
1547 del_timer(&adapter->wakeup_timer);
1548 adapter->pm_wakeup_card_req = false;
1549 adapter->ps_state = PS_STATE_AWAKE;
1550
1551 return 0;
1552}
1553
1554static void mwifiex_usb_submit_rem_rx_urbs(struct mwifiex_adapter *adapter)
1555{
1556 struct usb_card_rec *card = (struct usb_card_rec *)adapter->card;
1557 int i;
1558 struct urb_context *ctx;
1559
1560 for (i = 0; i < MWIFIEX_RX_DATA_URB; i++) {
1561 if (card->rx_data_list[i].skb)
1562 continue;
1563 ctx = &card->rx_data_list[i];
1564 mwifiex_usb_submit_rx_urb(ctx, MWIFIEX_RX_DATA_BUF_SIZE);
1565 }
1566}
1567
1568
1569static inline int
1570mwifiex_pm_wakeup_card_complete(struct mwifiex_adapter *adapter)
1571{
1572 return 0;
1573}
1574
1575static struct mwifiex_if_ops usb_ops = {
1576 .register_dev = mwifiex_register_dev,
1577 .unregister_dev = mwifiex_unregister_dev,
1578 .wakeup = mwifiex_pm_wakeup_card,
1579 .wakeup_complete = mwifiex_pm_wakeup_card_complete,
1580
1581
1582 .dnld_fw = mwifiex_usb_dnld_fw,
1583 .cmdrsp_complete = mwifiex_usb_cmd_event_complete,
1584 .event_complete = mwifiex_usb_cmd_event_complete,
1585 .host_to_card = mwifiex_usb_host_to_card,
1586 .submit_rem_rx_urbs = mwifiex_usb_submit_rem_rx_urbs,
1587 .multi_port_resync = mwifiex_usb_port_resync,
1588 .is_port_ready = mwifiex_usb_is_port_ready,
1589};
1590
1591module_usb_driver(mwifiex_usb_driver);
1592
1593MODULE_AUTHOR("Marvell International Ltd.");
1594MODULE_DESCRIPTION("Marvell WiFi-Ex USB Driver version" USB_VERSION);
1595MODULE_VERSION(USB_VERSION);
1596MODULE_LICENSE("GPL v2");
1597MODULE_FIRMWARE(USB8766_DEFAULT_FW_NAME);
1598MODULE_FIRMWARE(USB8797_DEFAULT_FW_NAME);
1599MODULE_FIRMWARE(USB8801_DEFAULT_FW_NAME);
1600MODULE_FIRMWARE(USB8997_DEFAULT_FW_NAME);
1601
