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20#include "main.h"
21#include "usb.h"
22
23#define USB_VERSION "1.0"
24
25static u8 user_rmmod;
26static struct mwifiex_if_ops usb_ops;
27static struct semaphore add_remove_card_sem;
28
29static struct usb_device_id mwifiex_usb_table[] = {
30
31 {USB_DEVICE(USB8XXX_VID, USB8766_PID_1)},
32 {USB_DEVICE_AND_INTERFACE_INFO(USB8XXX_VID, USB8766_PID_2,
33 USB_CLASS_VENDOR_SPEC,
34 USB_SUBCLASS_VENDOR_SPEC, 0xff)},
35
36 {USB_DEVICE(USB8XXX_VID, USB8797_PID_1)},
37 {USB_DEVICE_AND_INTERFACE_INFO(USB8XXX_VID, USB8797_PID_2,
38 USB_CLASS_VENDOR_SPEC,
39 USB_SUBCLASS_VENDOR_SPEC, 0xff)},
40
41 {USB_DEVICE(USB8XXX_VID, USB8801_PID_1)},
42 {USB_DEVICE_AND_INTERFACE_INFO(USB8XXX_VID, USB8801_PID_2,
43 USB_CLASS_VENDOR_SPEC,
44 USB_SUBCLASS_VENDOR_SPEC, 0xff)},
45
46 {USB_DEVICE(USB8XXX_VID, USB8897_PID_1)},
47 {USB_DEVICE_AND_INTERFACE_INFO(USB8XXX_VID, USB8897_PID_2,
48 USB_CLASS_VENDOR_SPEC,
49 USB_SUBCLASS_VENDOR_SPEC, 0xff)},
50
51 {USB_DEVICE(USB8XXX_VID, USB8997_PID_1)},
52 {USB_DEVICE_AND_INTERFACE_INFO(USB8XXX_VID, USB8997_PID_2,
53 USB_CLASS_VENDOR_SPEC,
54 USB_SUBCLASS_VENDOR_SPEC, 0xff)},
55 { }
56};
57
58MODULE_DEVICE_TABLE(usb, mwifiex_usb_table);
59
60static int mwifiex_usb_submit_rx_urb(struct urb_context *ctx, int size);
61
62
63
64
65static int mwifiex_usb_recv(struct mwifiex_adapter *adapter,
66 struct sk_buff *skb, u8 ep)
67{
68 u32 recv_type;
69 __le32 tmp;
70 int ret;
71
72 if (adapter->hs_activated)
73 mwifiex_process_hs_config(adapter);
74
75 if (skb->len < INTF_HEADER_LEN) {
76 mwifiex_dbg(adapter, ERROR,
77 "%s: invalid skb->len\n", __func__);
78 return -1;
79 }
80
81 switch (ep) {
82 case MWIFIEX_USB_EP_CMD_EVENT:
83 mwifiex_dbg(adapter, EVENT,
84 "%s: EP_CMD_EVENT\n", __func__);
85 skb_copy_from_linear_data(skb, &tmp, INTF_HEADER_LEN);
86 recv_type = le32_to_cpu(tmp);
87 skb_pull(skb, INTF_HEADER_LEN);
88
89 switch (recv_type) {
90 case MWIFIEX_USB_TYPE_CMD:
91 if (skb->len > MWIFIEX_SIZE_OF_CMD_BUFFER) {
92 mwifiex_dbg(adapter, ERROR,
93 "CMD: skb->len too large\n");
94 ret = -1;
95 goto exit_restore_skb;
96 } else if (!adapter->curr_cmd) {
97 mwifiex_dbg(adapter, WARN, "CMD: no curr_cmd\n");
98 if (adapter->ps_state == PS_STATE_SLEEP_CFM) {
99 mwifiex_process_sleep_confirm_resp(
100 adapter, skb->data,
101 skb->len);
102 ret = 0;
103 goto exit_restore_skb;
104 }
105 ret = -1;
106 goto exit_restore_skb;
107 }
108
109 adapter->curr_cmd->resp_skb = skb;
110 adapter->cmd_resp_received = true;
111 break;
112 case MWIFIEX_USB_TYPE_EVENT:
113 if (skb->len < sizeof(u32)) {
114 mwifiex_dbg(adapter, ERROR,
115 "EVENT: skb->len too small\n");
116 ret = -1;
117 goto exit_restore_skb;
118 }
119 skb_copy_from_linear_data(skb, &tmp, sizeof(u32));
120 adapter->event_cause = le32_to_cpu(tmp);
121 mwifiex_dbg(adapter, EVENT,
122 "event_cause %#x\n", adapter->event_cause);
123
124 if (skb->len > MAX_EVENT_SIZE) {
125 mwifiex_dbg(adapter, ERROR,
126 "EVENT: event body too large\n");
127 ret = -1;
128 goto exit_restore_skb;
129 }
130
131 memcpy(adapter->event_body, skb->data +
132 MWIFIEX_EVENT_HEADER_LEN, skb->len);
133
134 adapter->event_received = true;
135 adapter->event_skb = skb;
136 break;
137 default:
138 mwifiex_dbg(adapter, ERROR,
139 "unknown recv_type %#x\n", recv_type);
140 return -1;
141 }
142 break;
143 case MWIFIEX_USB_EP_DATA:
144 mwifiex_dbg(adapter, DATA, "%s: EP_DATA\n", __func__);
145 if (skb->len > MWIFIEX_RX_DATA_BUF_SIZE) {
146 mwifiex_dbg(adapter, ERROR,
147 "DATA: skb->len too large\n");
148 return -1;
149 }
150
151 skb_queue_tail(&adapter->rx_data_q, skb);
152 adapter->data_received = true;
153 atomic_inc(&adapter->rx_pending);
154 break;
155 default:
156 mwifiex_dbg(adapter, ERROR,
157 "%s: unknown endport %#x\n", __func__, ep);
158 return -1;
159 }
160
161 return -EINPROGRESS;
162
163exit_restore_skb:
164
165 skb_push(skb, INTF_HEADER_LEN);
166
167 return ret;
168}
169
170static void mwifiex_usb_rx_complete(struct urb *urb)
171{
172 struct urb_context *context = (struct urb_context *)urb->context;
173 struct mwifiex_adapter *adapter = context->adapter;
174 struct sk_buff *skb = context->skb;
175 struct usb_card_rec *card;
176 int recv_length = urb->actual_length;
177 int size, status;
178
179 if (!adapter || !adapter->card) {
180 pr_err("mwifiex adapter or card structure is not valid\n");
181 return;
182 }
183
184 card = (struct usb_card_rec *)adapter->card;
185 if (card->rx_cmd_ep == context->ep)
186 atomic_dec(&card->rx_cmd_urb_pending);
187 else
188 atomic_dec(&card->rx_data_urb_pending);
189
190 if (recv_length) {
191 if (urb->status || (adapter->surprise_removed)) {
192 mwifiex_dbg(adapter, ERROR,
193 "URB status is failed: %d\n", urb->status);
194
195 if (card->rx_cmd_ep != context->ep)
196 dev_kfree_skb_any(skb);
197 goto setup_for_next;
198 }
199 if (skb->len > recv_length)
200 skb_trim(skb, recv_length);
201 else
202 skb_put(skb, recv_length - skb->len);
203
204 status = mwifiex_usb_recv(adapter, skb, context->ep);
205
206 mwifiex_dbg(adapter, INFO,
207 "info: recv_length=%d, status=%d\n",
208 recv_length, status);
209 if (status == -EINPROGRESS) {
210 mwifiex_queue_main_work(adapter);
211
212
213
214
215
216 if (card->rx_cmd_ep == context->ep)
217 return;
218 } else {
219 if (status == -1)
220 mwifiex_dbg(adapter, ERROR,
221 "received data processing failed!\n");
222
223
224 if (card->rx_cmd_ep != context->ep)
225 dev_kfree_skb_any(skb);
226 }
227 } else if (urb->status) {
228 if (!adapter->is_suspended) {
229 mwifiex_dbg(adapter, FATAL,
230 "Card is removed: %d\n", urb->status);
231 adapter->surprise_removed = true;
232 }
233 dev_kfree_skb_any(skb);
234 return;
235 } else {
236
237 if (card->rx_cmd_ep != context->ep)
238 dev_kfree_skb_any(skb);
239
240
241 }
242
243setup_for_next:
244 if (card->rx_cmd_ep == context->ep)
245 size = MWIFIEX_RX_CMD_BUF_SIZE;
246 else
247 size = MWIFIEX_RX_DATA_BUF_SIZE;
248
249 if (card->rx_cmd_ep == context->ep) {
250 mwifiex_usb_submit_rx_urb(context, size);
251 } else {
252 if (atomic_read(&adapter->rx_pending) <= HIGH_RX_PENDING){
253 mwifiex_usb_submit_rx_urb(context, size);
254 }else{
255 context->skb = NULL;
256 }
257 }
258
259 return;
260}
261
262static void mwifiex_usb_tx_complete(struct urb *urb)
263{
264 struct urb_context *context = (struct urb_context *)(urb->context);
265 struct mwifiex_adapter *adapter = context->adapter;
266 struct usb_card_rec *card = adapter->card;
267
268 mwifiex_dbg(adapter, INFO,
269 "%s: status: %d\n", __func__, urb->status);
270
271 if (context->ep == card->tx_cmd_ep) {
272 mwifiex_dbg(adapter, CMD,
273 "%s: CMD\n", __func__);
274 atomic_dec(&card->tx_cmd_urb_pending);
275 adapter->cmd_sent = false;
276 } else {
277 mwifiex_dbg(adapter, DATA,
278 "%s: DATA\n", __func__);
279 atomic_dec(&card->tx_data_urb_pending);
280 mwifiex_write_data_complete(adapter, context->skb, 0,
281 urb->status ? -1 : 0);
282 }
283
284 mwifiex_queue_main_work(adapter);
285
286 return;
287}
288
289static int mwifiex_usb_submit_rx_urb(struct urb_context *ctx, int size)
290{
291 struct mwifiex_adapter *adapter = ctx->adapter;
292 struct usb_card_rec *card = (struct usb_card_rec *)adapter->card;
293
294 if (card->rx_cmd_ep != ctx->ep) {
295 ctx->skb = dev_alloc_skb(size);
296 if (!ctx->skb) {
297 mwifiex_dbg(adapter, ERROR,
298 "%s: dev_alloc_skb failed\n", __func__);
299 return -ENOMEM;
300 }
301 }
302
303 usb_fill_bulk_urb(ctx->urb, card->udev,
304 usb_rcvbulkpipe(card->udev, ctx->ep), ctx->skb->data,
305 size, mwifiex_usb_rx_complete, (void *)ctx);
306
307 if (card->rx_cmd_ep == ctx->ep)
308 atomic_inc(&card->rx_cmd_urb_pending);
309 else
310 atomic_inc(&card->rx_data_urb_pending);
311
312 if (usb_submit_urb(ctx->urb, GFP_ATOMIC)) {
313 mwifiex_dbg(adapter, ERROR, "usb_submit_urb failed\n");
314 dev_kfree_skb_any(ctx->skb);
315 ctx->skb = NULL;
316
317 if (card->rx_cmd_ep == ctx->ep)
318 atomic_dec(&card->rx_cmd_urb_pending);
319 else
320 atomic_dec(&card->rx_data_urb_pending);
321
322 return -1;
323 }
324
325 return 0;
326}
327
328static void mwifiex_usb_free(struct usb_card_rec *card)
329{
330 int i;
331
332 if (atomic_read(&card->rx_cmd_urb_pending) && card->rx_cmd.urb)
333 usb_kill_urb(card->rx_cmd.urb);
334
335 usb_free_urb(card->rx_cmd.urb);
336 card->rx_cmd.urb = NULL;
337
338 if (atomic_read(&card->rx_data_urb_pending))
339 for (i = 0; i < MWIFIEX_RX_DATA_URB; i++)
340 if (card->rx_data_list[i].urb)
341 usb_kill_urb(card->rx_data_list[i].urb);
342
343 for (i = 0; i < MWIFIEX_RX_DATA_URB; i++) {
344 usb_free_urb(card->rx_data_list[i].urb);
345 card->rx_data_list[i].urb = NULL;
346 }
347
348 for (i = 0; i < MWIFIEX_TX_DATA_URB; i++) {
349 usb_free_urb(card->tx_data_list[i].urb);
350 card->tx_data_list[i].urb = NULL;
351 }
352
353 usb_free_urb(card->tx_cmd.urb);
354 card->tx_cmd.urb = NULL;
355
356 return;
357}
358
359
360
361
362
363static int mwifiex_usb_probe(struct usb_interface *intf,
364 const struct usb_device_id *id)
365{
366 struct usb_device *udev = interface_to_usbdev(intf);
367 struct usb_host_interface *iface_desc = intf->cur_altsetting;
368 struct usb_endpoint_descriptor *epd;
369 int ret, i;
370 struct usb_card_rec *card;
371 u16 id_vendor, id_product, bcd_device, bcd_usb;
372
373 card = kzalloc(sizeof(struct usb_card_rec), GFP_KERNEL);
374 if (!card)
375 return -ENOMEM;
376
377 id_vendor = le16_to_cpu(udev->descriptor.idVendor);
378 id_product = le16_to_cpu(udev->descriptor.idProduct);
379 bcd_device = le16_to_cpu(udev->descriptor.bcdDevice);
380 bcd_usb = le16_to_cpu(udev->descriptor.bcdUSB);
381 pr_debug("info: VID/PID = %X/%X, Boot2 version = %X\n",
382 id_vendor, id_product, bcd_device);
383
384
385 switch (id_product) {
386 case USB8766_PID_1:
387 case USB8797_PID_1:
388 case USB8801_PID_1:
389 case USB8897_PID_1:
390 case USB8997_PID_1:
391 card->usb_boot_state = USB8XXX_FW_DNLD;
392 break;
393 case USB8766_PID_2:
394 case USB8797_PID_2:
395 case USB8801_PID_2:
396 case USB8897_PID_2:
397 case USB8997_PID_2:
398 card->usb_boot_state = USB8XXX_FW_READY;
399 break;
400 default:
401 pr_warn("unknown id_product %#x\n", id_product);
402 card->usb_boot_state = USB8XXX_FW_DNLD;
403 break;
404 }
405
406 card->udev = udev;
407 card->intf = intf;
408
409 pr_debug("info: bcdUSB=%#x Device Class=%#x SubClass=%#x Protocol=%#x\n",
410 udev->descriptor.bcdUSB, udev->descriptor.bDeviceClass,
411 udev->descriptor.bDeviceSubClass,
412 udev->descriptor.bDeviceProtocol);
413
414 for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) {
415 epd = &iface_desc->endpoint[i].desc;
416 if (usb_endpoint_dir_in(epd) &&
417 usb_endpoint_num(epd) == MWIFIEX_USB_EP_CMD_EVENT &&
418 usb_endpoint_xfer_bulk(epd)) {
419 pr_debug("info: bulk IN: max pkt size: %d, addr: %d\n",
420 le16_to_cpu(epd->wMaxPacketSize),
421 epd->bEndpointAddress);
422 card->rx_cmd_ep = usb_endpoint_num(epd);
423 atomic_set(&card->rx_cmd_urb_pending, 0);
424 }
425 if (usb_endpoint_dir_in(epd) &&
426 usb_endpoint_num(epd) == MWIFIEX_USB_EP_DATA &&
427 usb_endpoint_xfer_bulk(epd)) {
428 pr_debug("info: bulk IN: max pkt size: %d, addr: %d\n",
429 le16_to_cpu(epd->wMaxPacketSize),
430 epd->bEndpointAddress);
431 card->rx_data_ep = usb_endpoint_num(epd);
432 atomic_set(&card->rx_data_urb_pending, 0);
433 }
434 if (usb_endpoint_dir_out(epd) &&
435 usb_endpoint_num(epd) == MWIFIEX_USB_EP_DATA &&
436 usb_endpoint_xfer_bulk(epd)) {
437 pr_debug("info: bulk OUT: max pkt size: %d, addr: %d\n",
438 le16_to_cpu(epd->wMaxPacketSize),
439 epd->bEndpointAddress);
440 card->tx_data_ep = usb_endpoint_num(epd);
441 atomic_set(&card->tx_data_urb_pending, 0);
442 }
443 if (usb_endpoint_dir_out(epd) &&
444 usb_endpoint_num(epd) == MWIFIEX_USB_EP_CMD_EVENT &&
445 usb_endpoint_xfer_bulk(epd)) {
446 pr_debug("info: bulk OUT: max pkt size: %d, addr: %d\n",
447 le16_to_cpu(epd->wMaxPacketSize),
448 epd->bEndpointAddress);
449 card->tx_cmd_ep = usb_endpoint_num(epd);
450 atomic_set(&card->tx_cmd_urb_pending, 0);
451 card->bulk_out_maxpktsize =
452 le16_to_cpu(epd->wMaxPacketSize);
453 }
454 }
455
456 usb_set_intfdata(intf, card);
457
458 ret = mwifiex_add_card(card, &add_remove_card_sem, &usb_ops,
459 MWIFIEX_USB);
460 if (ret) {
461 pr_err("%s: mwifiex_add_card failed: %d\n", __func__, ret);
462 usb_reset_device(udev);
463 kfree(card);
464 return ret;
465 }
466
467 usb_get_dev(udev);
468
469 return 0;
470}
471
472
473
474
475
476
477
478
479static int mwifiex_usb_suspend(struct usb_interface *intf, pm_message_t message)
480{
481 struct usb_card_rec *card = usb_get_intfdata(intf);
482 struct mwifiex_adapter *adapter;
483 int i;
484
485 if (!card || !card->adapter) {
486 pr_err("%s: card or card->adapter is NULL\n", __func__);
487 return 0;
488 }
489 adapter = card->adapter;
490
491 if (unlikely(adapter->is_suspended))
492 mwifiex_dbg(adapter, WARN,
493 "Device already suspended\n");
494
495 mwifiex_enable_hs(adapter);
496
497
498
499
500
501
502
503 adapter->is_suspended = true;
504 adapter->hs_enabling = false;
505
506 if (atomic_read(&card->rx_cmd_urb_pending) && card->rx_cmd.urb)
507 usb_kill_urb(card->rx_cmd.urb);
508
509 if (atomic_read(&card->rx_data_urb_pending))
510 for (i = 0; i < MWIFIEX_RX_DATA_URB; i++)
511 if (card->rx_data_list[i].urb)
512 usb_kill_urb(card->rx_data_list[i].urb);
513
514 for (i = 0; i < MWIFIEX_TX_DATA_URB; i++)
515 if (card->tx_data_list[i].urb)
516 usb_kill_urb(card->tx_data_list[i].urb);
517
518 if (card->tx_cmd.urb)
519 usb_kill_urb(card->tx_cmd.urb);
520
521 return 0;
522}
523
524
525
526
527
528
529
530
531static int mwifiex_usb_resume(struct usb_interface *intf)
532{
533 struct usb_card_rec *card = usb_get_intfdata(intf);
534 struct mwifiex_adapter *adapter;
535 int i;
536
537 if (!card || !card->adapter) {
538 pr_err("%s: card or card->adapter is NULL\n", __func__);
539 return 0;
540 }
541 adapter = card->adapter;
542
543 if (unlikely(!adapter->is_suspended)) {
544 mwifiex_dbg(adapter, WARN,
545 "Device already resumed\n");
546 return 0;
547 }
548
549
550
551
552 adapter->is_suspended = false;
553
554 if (!atomic_read(&card->rx_data_urb_pending))
555 for (i = 0; i < MWIFIEX_RX_DATA_URB; i++)
556 mwifiex_usb_submit_rx_urb(&card->rx_data_list[i],
557 MWIFIEX_RX_DATA_BUF_SIZE);
558
559 if (!atomic_read(&card->rx_cmd_urb_pending)) {
560 card->rx_cmd.skb = dev_alloc_skb(MWIFIEX_RX_CMD_BUF_SIZE);
561 if (card->rx_cmd.skb)
562 mwifiex_usb_submit_rx_urb(&card->rx_cmd,
563 MWIFIEX_RX_CMD_BUF_SIZE);
564 }
565
566
567 if (adapter->hs_activated)
568 mwifiex_cancel_hs(mwifiex_get_priv(adapter,
569 MWIFIEX_BSS_ROLE_ANY),
570 MWIFIEX_ASYNC_CMD);
571
572 return 0;
573}
574
575static void mwifiex_usb_disconnect(struct usb_interface *intf)
576{
577 struct usb_card_rec *card = usb_get_intfdata(intf);
578 struct mwifiex_adapter *adapter;
579
580 if (!card || !card->adapter) {
581 pr_err("%s: card or card->adapter is NULL\n", __func__);
582 return;
583 }
584
585 adapter = card->adapter;
586 if (!adapter->priv_num)
587 return;
588
589 if (user_rmmod) {
590#ifdef CONFIG_PM
591 if (adapter->is_suspended)
592 mwifiex_usb_resume(intf);
593#endif
594
595 mwifiex_deauthenticate_all(adapter);
596
597 mwifiex_init_shutdown_fw(mwifiex_get_priv(adapter,
598 MWIFIEX_BSS_ROLE_ANY),
599 MWIFIEX_FUNC_SHUTDOWN);
600 }
601
602 mwifiex_usb_free(card);
603
604 mwifiex_dbg(adapter, FATAL,
605 "%s: removing card\n", __func__);
606 mwifiex_remove_card(adapter, &add_remove_card_sem);
607
608 usb_set_intfdata(intf, NULL);
609 usb_put_dev(interface_to_usbdev(intf));
610 kfree(card);
611
612 return;
613}
614
615static struct usb_driver mwifiex_usb_driver = {
616 .name = "mwifiex_usb",
617 .probe = mwifiex_usb_probe,
618 .disconnect = mwifiex_usb_disconnect,
619 .id_table = mwifiex_usb_table,
620 .suspend = mwifiex_usb_suspend,
621 .resume = mwifiex_usb_resume,
622 .soft_unbind = 1,
623};
624
625static int mwifiex_usb_tx_init(struct mwifiex_adapter *adapter)
626{
627 struct usb_card_rec *card = (struct usb_card_rec *)adapter->card;
628 int i;
629
630 card->tx_cmd.adapter = adapter;
631 card->tx_cmd.ep = card->tx_cmd_ep;
632
633 card->tx_cmd.urb = usb_alloc_urb(0, GFP_KERNEL);
634 if (!card->tx_cmd.urb) {
635 mwifiex_dbg(adapter, ERROR,
636 "tx_cmd.urb allocation failed\n");
637 return -ENOMEM;
638 }
639
640 card->tx_data_ix = 0;
641
642 for (i = 0; i < MWIFIEX_TX_DATA_URB; i++) {
643 card->tx_data_list[i].adapter = adapter;
644 card->tx_data_list[i].ep = card->tx_data_ep;
645
646 card->tx_data_list[i].urb = usb_alloc_urb(0, GFP_KERNEL);
647 if (!card->tx_data_list[i].urb) {
648 mwifiex_dbg(adapter, ERROR,
649 "tx_data_list[] urb allocation failed\n");
650 return -ENOMEM;
651 }
652 }
653
654 return 0;
655}
656
657static int mwifiex_usb_rx_init(struct mwifiex_adapter *adapter)
658{
659 struct usb_card_rec *card = (struct usb_card_rec *)adapter->card;
660 int i;
661
662 card->rx_cmd.adapter = adapter;
663 card->rx_cmd.ep = card->rx_cmd_ep;
664
665 card->rx_cmd.urb = usb_alloc_urb(0, GFP_KERNEL);
666 if (!card->rx_cmd.urb) {
667 mwifiex_dbg(adapter, ERROR, "rx_cmd.urb allocation failed\n");
668 return -ENOMEM;
669 }
670
671 card->rx_cmd.skb = dev_alloc_skb(MWIFIEX_RX_CMD_BUF_SIZE);
672 if (!card->rx_cmd.skb)
673 return -ENOMEM;
674
675 if (mwifiex_usb_submit_rx_urb(&card->rx_cmd, MWIFIEX_RX_CMD_BUF_SIZE))
676 return -1;
677
678 for (i = 0; i < MWIFIEX_RX_DATA_URB; i++) {
679 card->rx_data_list[i].adapter = adapter;
680 card->rx_data_list[i].ep = card->rx_data_ep;
681
682 card->rx_data_list[i].urb = usb_alloc_urb(0, GFP_KERNEL);
683 if (!card->rx_data_list[i].urb) {
684 mwifiex_dbg(adapter, ERROR,
685 "rx_data_list[] urb allocation failed\n");
686 return -1;
687 }
688 if (mwifiex_usb_submit_rx_urb(&card->rx_data_list[i],
689 MWIFIEX_RX_DATA_BUF_SIZE))
690 return -1;
691 }
692
693 return 0;
694}
695
696static int mwifiex_write_data_sync(struct mwifiex_adapter *adapter, u8 *pbuf,
697 u32 *len, u8 ep, u32 timeout)
698{
699 struct usb_card_rec *card = adapter->card;
700 int actual_length, ret;
701
702 if (!(*len % card->bulk_out_maxpktsize))
703 (*len)++;
704
705
706 ret = usb_bulk_msg(card->udev, usb_sndbulkpipe(card->udev, ep), pbuf,
707 *len, &actual_length, timeout);
708 if (ret) {
709 mwifiex_dbg(adapter, ERROR,
710 "usb_bulk_msg for tx failed: %d\n", ret);
711 return ret;
712 }
713
714 *len = actual_length;
715
716 return ret;
717}
718
719static int mwifiex_read_data_sync(struct mwifiex_adapter *adapter, u8 *pbuf,
720 u32 *len, u8 ep, u32 timeout)
721{
722 struct usb_card_rec *card = adapter->card;
723 int actual_length, ret;
724
725
726 ret = usb_bulk_msg(card->udev, usb_rcvbulkpipe(card->udev, ep), pbuf,
727 *len, &actual_length, timeout);
728 if (ret) {
729 mwifiex_dbg(adapter, ERROR,
730 "usb_bulk_msg for rx failed: %d\n", ret);
731 return ret;
732 }
733
734 *len = actual_length;
735
736 return ret;
737}
738
739
740static int mwifiex_usb_host_to_card(struct mwifiex_adapter *adapter, u8 ep,
741 struct sk_buff *skb,
742 struct mwifiex_tx_param *tx_param)
743{
744 struct usb_card_rec *card = adapter->card;
745 struct urb_context *context;
746 u8 *data = (u8 *)skb->data;
747 struct urb *tx_urb;
748
749 if (adapter->is_suspended) {
750 mwifiex_dbg(adapter, ERROR,
751 "%s: not allowed while suspended\n", __func__);
752 return -1;
753 }
754
755 if (adapter->surprise_removed) {
756 mwifiex_dbg(adapter, ERROR, "%s: device removed\n", __func__);
757 return -1;
758 }
759
760 if (ep == card->tx_data_ep &&
761 atomic_read(&card->tx_data_urb_pending) >= MWIFIEX_TX_DATA_URB) {
762 return -EBUSY;
763 }
764
765 mwifiex_dbg(adapter, INFO, "%s: ep=%d\n", __func__, ep);
766
767 if (ep == card->tx_cmd_ep) {
768 context = &card->tx_cmd;
769 } else {
770 if (card->tx_data_ix >= MWIFIEX_TX_DATA_URB)
771 card->tx_data_ix = 0;
772 context = &card->tx_data_list[card->tx_data_ix++];
773 }
774
775 context->adapter = adapter;
776 context->ep = ep;
777 context->skb = skb;
778 tx_urb = context->urb;
779
780 usb_fill_bulk_urb(tx_urb, card->udev, usb_sndbulkpipe(card->udev, ep),
781 data, skb->len, mwifiex_usb_tx_complete,
782 (void *)context);
783
784 tx_urb->transfer_flags |= URB_ZERO_PACKET;
785
786 if (ep == card->tx_cmd_ep)
787 atomic_inc(&card->tx_cmd_urb_pending);
788 else
789 atomic_inc(&card->tx_data_urb_pending);
790
791 if (usb_submit_urb(tx_urb, GFP_ATOMIC)) {
792 mwifiex_dbg(adapter, ERROR,
793 "%s: usb_submit_urb failed\n", __func__);
794 if (ep == card->tx_cmd_ep) {
795 atomic_dec(&card->tx_cmd_urb_pending);
796 } else {
797 atomic_dec(&card->tx_data_urb_pending);
798 if (card->tx_data_ix)
799 card->tx_data_ix--;
800 else
801 card->tx_data_ix = MWIFIEX_TX_DATA_URB;
802 }
803
804 return -1;
805 } else {
806 if (ep == card->tx_data_ep &&
807 atomic_read(&card->tx_data_urb_pending) ==
808 MWIFIEX_TX_DATA_URB)
809 return -ENOSR;
810 }
811
812 return -EINPROGRESS;
813}
814
815
816static int mwifiex_register_dev(struct mwifiex_adapter *adapter)
817{
818 struct usb_card_rec *card = (struct usb_card_rec *)adapter->card;
819
820 card->adapter = adapter;
821 adapter->dev = &card->udev->dev;
822
823 switch (le16_to_cpu(card->udev->descriptor.idProduct)) {
824 case USB8997_PID_1:
825 case USB8997_PID_2:
826 adapter->tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_4K;
827 strcpy(adapter->fw_name, USB8997_DEFAULT_FW_NAME);
828 adapter->ext_scan = true;
829 break;
830 case USB8897_PID_1:
831 case USB8897_PID_2:
832 adapter->tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_4K;
833 strcpy(adapter->fw_name, USB8897_DEFAULT_FW_NAME);
834 adapter->ext_scan = true;
835 break;
836 case USB8766_PID_1:
837 case USB8766_PID_2:
838 adapter->tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K;
839 strcpy(adapter->fw_name, USB8766_DEFAULT_FW_NAME);
840 adapter->ext_scan = true;
841 break;
842 case USB8801_PID_1:
843 case USB8801_PID_2:
844 adapter->tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K;
845 strcpy(adapter->fw_name, USB8801_DEFAULT_FW_NAME);
846 adapter->ext_scan = false;
847 break;
848 case USB8797_PID_1:
849 case USB8797_PID_2:
850 default:
851 adapter->tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K;
852 strcpy(adapter->fw_name, USB8797_DEFAULT_FW_NAME);
853 break;
854 }
855
856 return 0;
857}
858
859static void mwifiex_unregister_dev(struct mwifiex_adapter *adapter)
860{
861 struct usb_card_rec *card = (struct usb_card_rec *)adapter->card;
862
863 card->adapter = NULL;
864}
865
866static int mwifiex_prog_fw_w_helper(struct mwifiex_adapter *adapter,
867 struct mwifiex_fw_image *fw)
868{
869 int ret = 0;
870 u8 *firmware = fw->fw_buf, *recv_buff;
871 u32 retries = USB8XXX_FW_MAX_RETRY, dlen;
872 u32 fw_seqnum = 0, tlen = 0, dnld_cmd = 0;
873 struct fw_data *fwdata;
874 struct fw_sync_header sync_fw;
875 u8 check_winner = 1;
876
877 if (!firmware) {
878 mwifiex_dbg(adapter, ERROR,
879 "No firmware image found! Terminating download\n");
880 ret = -1;
881 goto fw_exit;
882 }
883
884
885 fwdata = kzalloc(FW_DNLD_TX_BUF_SIZE, GFP_KERNEL);
886 if (!fwdata) {
887 ret = -ENOMEM;
888 goto fw_exit;
889 }
890
891
892 recv_buff = kzalloc(FW_DNLD_RX_BUF_SIZE, GFP_KERNEL);
893 if (!recv_buff)
894 goto cleanup;
895
896 do {
897
898 if (check_winner) {
899 memset(&fwdata->fw_hdr, 0, sizeof(struct fw_header));
900 dlen = 0;
901 } else {
902
903 memcpy(&fwdata->fw_hdr, &firmware[tlen],
904 sizeof(struct fw_header));
905
906 dlen = le32_to_cpu(fwdata->fw_hdr.data_len);
907 dnld_cmd = le32_to_cpu(fwdata->fw_hdr.dnld_cmd);
908 tlen += sizeof(struct fw_header);
909
910 memcpy(fwdata->data, &firmware[tlen], dlen);
911
912 fwdata->seq_num = cpu_to_le32(fw_seqnum);
913 tlen += dlen;
914 }
915
916
917 while (retries--) {
918 u8 *buf = (u8 *)fwdata;
919 u32 len = FW_DATA_XMIT_SIZE;
920
921
922 ret = mwifiex_write_data_sync(adapter, buf, &len,
923 MWIFIEX_USB_EP_CMD_EVENT,
924 MWIFIEX_USB_TIMEOUT);
925 if (ret) {
926 mwifiex_dbg(adapter, ERROR,
927 "write_data_sync: failed: %d\n",
928 ret);
929 continue;
930 }
931
932 buf = recv_buff;
933 len = FW_DNLD_RX_BUF_SIZE;
934
935
936 ret = mwifiex_read_data_sync(adapter, buf, &len,
937 MWIFIEX_USB_EP_CMD_EVENT,
938 MWIFIEX_USB_TIMEOUT);
939 if (ret) {
940 mwifiex_dbg(adapter, ERROR,
941 "read_data_sync: failed: %d\n",
942 ret);
943 continue;
944 }
945
946 memcpy(&sync_fw, recv_buff,
947 sizeof(struct fw_sync_header));
948
949
950 if (check_winner) {
951 if (le32_to_cpu(sync_fw.cmd) & 0x80000000) {
952 mwifiex_dbg(adapter, WARN,
953 "USB is not the winner %#x\n",
954 sync_fw.cmd);
955
956
957 ret = 0;
958 goto cleanup;
959 }
960
961 mwifiex_dbg(adapter, MSG,
962 "start to download FW...\n");
963
964 check_winner = 0;
965 break;
966 }
967
968
969 if (sync_fw.cmd) {
970 mwifiex_dbg(adapter, ERROR,
971 "FW received block with CRC %#x\n",
972 sync_fw.cmd);
973 ret = -1;
974 continue;
975 }
976
977 retries = USB8XXX_FW_MAX_RETRY;
978 break;
979 }
980 fw_seqnum++;
981 } while ((dnld_cmd != FW_HAS_LAST_BLOCK) && retries);
982
983cleanup:
984 mwifiex_dbg(adapter, MSG,
985 "info: FW download over, size %d bytes\n", tlen);
986
987 kfree(recv_buff);
988 kfree(fwdata);
989
990 if (retries)
991 ret = 0;
992fw_exit:
993 return ret;
994}
995
996static int mwifiex_usb_dnld_fw(struct mwifiex_adapter *adapter,
997 struct mwifiex_fw_image *fw)
998{
999 int ret;
1000 struct usb_card_rec *card = (struct usb_card_rec *)adapter->card;
1001
1002 if (card->usb_boot_state == USB8XXX_FW_DNLD) {
1003 ret = mwifiex_prog_fw_w_helper(adapter, fw);
1004 if (ret)
1005 return -1;
1006
1007
1008 if (card->usb_boot_state == USB8XXX_FW_DNLD)
1009 return -1;
1010 }
1011
1012 ret = mwifiex_usb_rx_init(adapter);
1013 if (!ret)
1014 ret = mwifiex_usb_tx_init(adapter);
1015
1016 return ret;
1017}
1018
1019static void mwifiex_submit_rx_urb(struct mwifiex_adapter *adapter, u8 ep)
1020{
1021 struct usb_card_rec *card = (struct usb_card_rec *)adapter->card;
1022
1023 skb_push(card->rx_cmd.skb, INTF_HEADER_LEN);
1024 if ((ep == card->rx_cmd_ep) &&
1025 (!atomic_read(&card->rx_cmd_urb_pending)))
1026 mwifiex_usb_submit_rx_urb(&card->rx_cmd,
1027 MWIFIEX_RX_CMD_BUF_SIZE);
1028
1029 return;
1030}
1031
1032static int mwifiex_usb_cmd_event_complete(struct mwifiex_adapter *adapter,
1033 struct sk_buff *skb)
1034{
1035 mwifiex_submit_rx_urb(adapter, MWIFIEX_USB_EP_CMD_EVENT);
1036
1037 return 0;
1038}
1039
1040
1041static int mwifiex_pm_wakeup_card(struct mwifiex_adapter *adapter)
1042{
1043
1044 adapter->pm_wakeup_fw_try = false;
1045 del_timer(&adapter->wakeup_timer);
1046 adapter->pm_wakeup_card_req = false;
1047 adapter->ps_state = PS_STATE_AWAKE;
1048
1049 return 0;
1050}
1051
1052static void mwifiex_usb_submit_rem_rx_urbs(struct mwifiex_adapter *adapter)
1053{
1054 struct usb_card_rec *card = (struct usb_card_rec *)adapter->card;
1055 int i;
1056 struct urb_context *ctx;
1057
1058 for (i = 0; i < MWIFIEX_RX_DATA_URB; i++) {
1059 if (card->rx_data_list[i].skb)
1060 continue;
1061 ctx = &card->rx_data_list[i];
1062 mwifiex_usb_submit_rx_urb(ctx, MWIFIEX_RX_DATA_BUF_SIZE);
1063 }
1064}
1065
1066
1067static inline int
1068mwifiex_pm_wakeup_card_complete(struct mwifiex_adapter *adapter)
1069{
1070 return 0;
1071}
1072
1073static struct mwifiex_if_ops usb_ops = {
1074 .register_dev = mwifiex_register_dev,
1075 .unregister_dev = mwifiex_unregister_dev,
1076 .wakeup = mwifiex_pm_wakeup_card,
1077 .wakeup_complete = mwifiex_pm_wakeup_card_complete,
1078
1079
1080 .dnld_fw = mwifiex_usb_dnld_fw,
1081 .cmdrsp_complete = mwifiex_usb_cmd_event_complete,
1082 .event_complete = mwifiex_usb_cmd_event_complete,
1083 .host_to_card = mwifiex_usb_host_to_card,
1084 .submit_rem_rx_urbs = mwifiex_usb_submit_rem_rx_urbs,
1085};
1086
1087
1088
1089
1090
1091
1092static int mwifiex_usb_init_module(void)
1093{
1094 int ret;
1095
1096 pr_debug("Marvell USB8797 Driver\n");
1097
1098 sema_init(&add_remove_card_sem, 1);
1099
1100 ret = usb_register(&mwifiex_usb_driver);
1101 if (ret)
1102 pr_err("Driver register failed!\n");
1103 else
1104 pr_debug("info: Driver registered successfully!\n");
1105
1106 return ret;
1107}
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117static void mwifiex_usb_cleanup_module(void)
1118{
1119 if (!down_interruptible(&add_remove_card_sem))
1120 up(&add_remove_card_sem);
1121
1122
1123 user_rmmod = 1;
1124
1125 usb_deregister(&mwifiex_usb_driver);
1126}
1127
1128module_init(mwifiex_usb_init_module);
1129module_exit(mwifiex_usb_cleanup_module);
1130
1131MODULE_AUTHOR("Marvell International Ltd.");
1132MODULE_DESCRIPTION("Marvell WiFi-Ex USB Driver version" USB_VERSION);
1133MODULE_VERSION(USB_VERSION);
1134MODULE_LICENSE("GPL v2");
1135MODULE_FIRMWARE(USB8766_DEFAULT_FW_NAME);
1136MODULE_FIRMWARE(USB8797_DEFAULT_FW_NAME);
1137MODULE_FIRMWARE(USB8801_DEFAULT_FW_NAME);
1138MODULE_FIRMWARE(USB8897_DEFAULT_FW_NAME);
1139MODULE_FIRMWARE(USB8997_DEFAULT_FW_NAME);
1140
