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17#include <linux/kernel.h>
18#include <linux/module.h>
19#include <linux/firmware.h>
20#include <linux/usb.h>
21#include <linux/vmalloc.h>
22
23#include <brcmu_utils.h>
24#include <brcmu_wifi.h>
25#include <dhd_bus.h>
26#include <dhd_dbg.h>
27
28#include "usb_rdl.h"
29#include "usb.h"
30
31#define IOCTL_RESP_TIMEOUT 2000
32
33#define BRCMF_USB_RESET_GETVER_SPINWAIT 100
34#define BRCMF_USB_RESET_GETVER_LOOP_CNT 10
35
36#define BRCMF_POSTBOOT_ID 0xA123
37
38#define BRCMF_USB_NRXQ 50
39#define BRCMF_USB_NTXQ 50
40
41#define CONFIGDESC(usb) (&((usb)->actconfig)->desc)
42#define IFPTR(usb, idx) ((usb)->actconfig->interface[(idx)])
43#define IFALTS(usb, idx) (IFPTR((usb), (idx))->altsetting[0])
44#define IFDESC(usb, idx) IFALTS((usb), (idx)).desc
45#define IFEPDESC(usb, idx, ep) (IFALTS((usb), (idx)).endpoint[(ep)]).desc
46
47#define CONTROL_IF 0
48#define BULK_IF 0
49
50#define BRCMF_USB_CBCTL_WRITE 0
51#define BRCMF_USB_CBCTL_READ 1
52#define BRCMF_USB_MAX_PKT_SIZE 1600
53
54#define BRCMF_USB_43143_FW_NAME "brcm/brcmfmac43143.bin"
55#define BRCMF_USB_43236_FW_NAME "brcm/brcmfmac43236b.bin"
56#define BRCMF_USB_43242_FW_NAME "brcm/brcmfmac43242a.bin"
57
58struct brcmf_usb_image {
59 struct list_head list;
60 s8 *fwname;
61 u8 *image;
62 int image_len;
63};
64static struct list_head fw_image_list;
65
66struct intr_transfer_buf {
67 u32 notification;
68 u32 reserved;
69};
70
71struct brcmf_usbdev_info {
72 struct brcmf_usbdev bus_pub;
73 spinlock_t qlock;
74 struct list_head rx_freeq;
75 struct list_head rx_postq;
76 struct list_head tx_freeq;
77 struct list_head tx_postq;
78 uint rx_pipe, tx_pipe, intr_pipe, rx_pipe2;
79
80 int rx_low_watermark;
81 int tx_low_watermark;
82 int tx_high_watermark;
83 int tx_freecount;
84 bool tx_flowblock;
85
86 struct brcmf_usbreq *tx_reqs;
87 struct brcmf_usbreq *rx_reqs;
88
89 u8 *image;
90 int image_len;
91
92 struct usb_device *usbdev;
93 struct device *dev;
94
95 int ctl_in_pipe, ctl_out_pipe;
96 struct urb *ctl_urb;
97 struct usb_ctrlrequest ctl_write;
98 struct usb_ctrlrequest ctl_read;
99 u32 ctl_urb_actual_length;
100 int ctl_urb_status;
101 int ctl_completed;
102 wait_queue_head_t ioctl_resp_wait;
103 ulong ctl_op;
104
105 struct urb *bulk_urb;
106 struct urb *intr_urb;
107 int intr_size;
108 int interval;
109 struct intr_transfer_buf intr;
110};
111
112static void brcmf_usb_rx_refill(struct brcmf_usbdev_info *devinfo,
113 struct brcmf_usbreq *req);
114
115MODULE_AUTHOR("Broadcom Corporation");
116MODULE_DESCRIPTION("Broadcom 802.11n wireless LAN fullmac usb driver.");
117MODULE_SUPPORTED_DEVICE("Broadcom 802.11n WLAN fullmac usb cards");
118MODULE_LICENSE("Dual BSD/GPL");
119
120static struct brcmf_usbdev *brcmf_usb_get_buspub(struct device *dev)
121{
122 struct brcmf_bus *bus_if = dev_get_drvdata(dev);
123 return bus_if->bus_priv.usb;
124}
125
126static struct brcmf_usbdev_info *brcmf_usb_get_businfo(struct device *dev)
127{
128 return brcmf_usb_get_buspub(dev)->devinfo;
129}
130
131static int brcmf_usb_ioctl_resp_wait(struct brcmf_usbdev_info *devinfo)
132{
133 return wait_event_timeout(devinfo->ioctl_resp_wait,
134 devinfo->ctl_completed,
135 msecs_to_jiffies(IOCTL_RESP_TIMEOUT));
136}
137
138static void brcmf_usb_ioctl_resp_wake(struct brcmf_usbdev_info *devinfo)
139{
140 if (waitqueue_active(&devinfo->ioctl_resp_wait))
141 wake_up(&devinfo->ioctl_resp_wait);
142}
143
144static void
145brcmf_usb_ctl_complete(struct brcmf_usbdev_info *devinfo, int type, int status)
146{
147 brcmf_dbg(USB, "Enter, status=%d\n", status);
148
149 if (unlikely(devinfo == NULL))
150 return;
151
152 if (type == BRCMF_USB_CBCTL_READ) {
153 if (status == 0)
154 devinfo->bus_pub.stats.rx_ctlpkts++;
155 else
156 devinfo->bus_pub.stats.rx_ctlerrs++;
157 } else if (type == BRCMF_USB_CBCTL_WRITE) {
158 if (status == 0)
159 devinfo->bus_pub.stats.tx_ctlpkts++;
160 else
161 devinfo->bus_pub.stats.tx_ctlerrs++;
162 }
163
164 devinfo->ctl_urb_status = status;
165 devinfo->ctl_completed = true;
166 brcmf_usb_ioctl_resp_wake(devinfo);
167}
168
169static void
170brcmf_usb_ctlread_complete(struct urb *urb)
171{
172 struct brcmf_usbdev_info *devinfo =
173 (struct brcmf_usbdev_info *)urb->context;
174
175 brcmf_dbg(USB, "Enter\n");
176 devinfo->ctl_urb_actual_length = urb->actual_length;
177 brcmf_usb_ctl_complete(devinfo, BRCMF_USB_CBCTL_READ,
178 urb->status);
179}
180
181static void
182brcmf_usb_ctlwrite_complete(struct urb *urb)
183{
184 struct brcmf_usbdev_info *devinfo =
185 (struct brcmf_usbdev_info *)urb->context;
186
187 brcmf_dbg(USB, "Enter\n");
188 brcmf_usb_ctl_complete(devinfo, BRCMF_USB_CBCTL_WRITE,
189 urb->status);
190}
191
192static int
193brcmf_usb_send_ctl(struct brcmf_usbdev_info *devinfo, u8 *buf, int len)
194{
195 int ret;
196 u16 size;
197
198 brcmf_dbg(USB, "Enter\n");
199 if (devinfo == NULL || buf == NULL ||
200 len == 0 || devinfo->ctl_urb == NULL)
201 return -EINVAL;
202
203 size = len;
204 devinfo->ctl_write.wLength = cpu_to_le16p(&size);
205 devinfo->ctl_urb->transfer_buffer_length = size;
206 devinfo->ctl_urb_status = 0;
207 devinfo->ctl_urb_actual_length = 0;
208
209 usb_fill_control_urb(devinfo->ctl_urb,
210 devinfo->usbdev,
211 devinfo->ctl_out_pipe,
212 (unsigned char *) &devinfo->ctl_write,
213 buf, size,
214 (usb_complete_t)brcmf_usb_ctlwrite_complete,
215 devinfo);
216
217 ret = usb_submit_urb(devinfo->ctl_urb, GFP_ATOMIC);
218 if (ret < 0)
219 brcmf_err("usb_submit_urb failed %d\n", ret);
220
221 return ret;
222}
223
224static int
225brcmf_usb_recv_ctl(struct brcmf_usbdev_info *devinfo, u8 *buf, int len)
226{
227 int ret;
228 u16 size;
229
230 brcmf_dbg(USB, "Enter\n");
231 if ((devinfo == NULL) || (buf == NULL) || (len == 0)
232 || (devinfo->ctl_urb == NULL))
233 return -EINVAL;
234
235 size = len;
236 devinfo->ctl_read.wLength = cpu_to_le16p(&size);
237 devinfo->ctl_urb->transfer_buffer_length = size;
238
239 devinfo->ctl_read.bRequestType = USB_DIR_IN
240 | USB_TYPE_CLASS | USB_RECIP_INTERFACE;
241 devinfo->ctl_read.bRequest = 1;
242
243 usb_fill_control_urb(devinfo->ctl_urb,
244 devinfo->usbdev,
245 devinfo->ctl_in_pipe,
246 (unsigned char *) &devinfo->ctl_read,
247 buf, size,
248 (usb_complete_t)brcmf_usb_ctlread_complete,
249 devinfo);
250
251 ret = usb_submit_urb(devinfo->ctl_urb, GFP_ATOMIC);
252 if (ret < 0)
253 brcmf_err("usb_submit_urb failed %d\n", ret);
254
255 return ret;
256}
257
258static int brcmf_usb_tx_ctlpkt(struct device *dev, u8 *buf, u32 len)
259{
260 int err = 0;
261 int timeout = 0;
262 struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(dev);
263
264 brcmf_dbg(USB, "Enter\n");
265 if (devinfo->bus_pub.state != BRCMFMAC_USB_STATE_UP)
266 return -EIO;
267
268 if (test_and_set_bit(0, &devinfo->ctl_op))
269 return -EIO;
270
271 devinfo->ctl_completed = false;
272 err = brcmf_usb_send_ctl(devinfo, buf, len);
273 if (err) {
274 brcmf_err("fail %d bytes: %d\n", err, len);
275 clear_bit(0, &devinfo->ctl_op);
276 return err;
277 }
278 timeout = brcmf_usb_ioctl_resp_wait(devinfo);
279 clear_bit(0, &devinfo->ctl_op);
280 if (!timeout) {
281 brcmf_err("Txctl wait timed out\n");
282 err = -EIO;
283 }
284 return err;
285}
286
287static int brcmf_usb_rx_ctlpkt(struct device *dev, u8 *buf, u32 len)
288{
289 int err = 0;
290 int timeout = 0;
291 struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(dev);
292
293 brcmf_dbg(USB, "Enter\n");
294 if (devinfo->bus_pub.state != BRCMFMAC_USB_STATE_UP)
295 return -EIO;
296
297 if (test_and_set_bit(0, &devinfo->ctl_op))
298 return -EIO;
299
300 devinfo->ctl_completed = false;
301 err = brcmf_usb_recv_ctl(devinfo, buf, len);
302 if (err) {
303 brcmf_err("fail %d bytes: %d\n", err, len);
304 clear_bit(0, &devinfo->ctl_op);
305 return err;
306 }
307 timeout = brcmf_usb_ioctl_resp_wait(devinfo);
308 err = devinfo->ctl_urb_status;
309 clear_bit(0, &devinfo->ctl_op);
310 if (!timeout) {
311 brcmf_err("rxctl wait timed out\n");
312 err = -EIO;
313 }
314 if (!err)
315 return devinfo->ctl_urb_actual_length;
316 else
317 return err;
318}
319
320static struct brcmf_usbreq *brcmf_usb_deq(struct brcmf_usbdev_info *devinfo,
321 struct list_head *q, int *counter)
322{
323 unsigned long flags;
324 struct brcmf_usbreq *req;
325 spin_lock_irqsave(&devinfo->qlock, flags);
326 if (list_empty(q)) {
327 spin_unlock_irqrestore(&devinfo->qlock, flags);
328 return NULL;
329 }
330 req = list_entry(q->next, struct brcmf_usbreq, list);
331 list_del_init(q->next);
332 if (counter)
333 (*counter)--;
334 spin_unlock_irqrestore(&devinfo->qlock, flags);
335 return req;
336
337}
338
339static void brcmf_usb_enq(struct brcmf_usbdev_info *devinfo,
340 struct list_head *q, struct brcmf_usbreq *req,
341 int *counter)
342{
343 unsigned long flags;
344 spin_lock_irqsave(&devinfo->qlock, flags);
345 list_add_tail(&req->list, q);
346 if (counter)
347 (*counter)++;
348 spin_unlock_irqrestore(&devinfo->qlock, flags);
349}
350
351static struct brcmf_usbreq *
352brcmf_usbdev_qinit(struct list_head *q, int qsize)
353{
354 int i;
355 struct brcmf_usbreq *req, *reqs;
356
357 reqs = kzalloc(sizeof(struct brcmf_usbreq) * qsize, GFP_ATOMIC);
358 if (reqs == NULL) {
359 brcmf_err("fail to allocate memory!\n");
360 return NULL;
361 }
362 req = reqs;
363
364 for (i = 0; i < qsize; i++) {
365 req->urb = usb_alloc_urb(0, GFP_ATOMIC);
366 if (!req->urb)
367 goto fail;
368
369 INIT_LIST_HEAD(&req->list);
370 list_add_tail(&req->list, q);
371 req++;
372 }
373 return reqs;
374fail:
375 brcmf_err("fail!\n");
376 while (!list_empty(q)) {
377 req = list_entry(q->next, struct brcmf_usbreq, list);
378 if (req && req->urb)
379 usb_free_urb(req->urb);
380 list_del(q->next);
381 }
382 return NULL;
383
384}
385
386static void brcmf_usb_free_q(struct list_head *q, bool pending)
387{
388 struct brcmf_usbreq *req, *next;
389 int i = 0;
390 list_for_each_entry_safe(req, next, q, list) {
391 if (!req->urb) {
392 brcmf_err("bad req\n");
393 break;
394 }
395 i++;
396 if (pending) {
397 usb_kill_urb(req->urb);
398 } else {
399 usb_free_urb(req->urb);
400 list_del_init(&req->list);
401 }
402 }
403}
404
405static void brcmf_usb_del_fromq(struct brcmf_usbdev_info *devinfo,
406 struct brcmf_usbreq *req)
407{
408 unsigned long flags;
409
410 spin_lock_irqsave(&devinfo->qlock, flags);
411 list_del_init(&req->list);
412 spin_unlock_irqrestore(&devinfo->qlock, flags);
413}
414
415
416static void brcmf_usb_tx_complete(struct urb *urb)
417{
418 struct brcmf_usbreq *req = (struct brcmf_usbreq *)urb->context;
419 struct brcmf_usbdev_info *devinfo = req->devinfo;
420
421 brcmf_dbg(USB, "Enter, urb->status=%d, skb=%p\n", urb->status,
422 req->skb);
423 brcmf_usb_del_fromq(devinfo, req);
424 if (urb->status == 0)
425 devinfo->bus_pub.bus->dstats.tx_packets++;
426 else
427 devinfo->bus_pub.bus->dstats.tx_errors++;
428
429 brcmf_txcomplete(devinfo->dev, req->skb, urb->status == 0);
430
431 brcmu_pkt_buf_free_skb(req->skb);
432 req->skb = NULL;
433 brcmf_usb_enq(devinfo, &devinfo->tx_freeq, req, &devinfo->tx_freecount);
434 if (devinfo->tx_freecount > devinfo->tx_high_watermark &&
435 devinfo->tx_flowblock) {
436 brcmf_txflowblock(devinfo->dev, false);
437 devinfo->tx_flowblock = false;
438 }
439}
440
441static void brcmf_usb_rx_complete(struct urb *urb)
442{
443 struct brcmf_usbreq *req = (struct brcmf_usbreq *)urb->context;
444 struct brcmf_usbdev_info *devinfo = req->devinfo;
445 struct sk_buff *skb;
446 int ifidx = 0;
447
448 brcmf_dbg(USB, "Enter, urb->status=%d\n", urb->status);
449 brcmf_usb_del_fromq(devinfo, req);
450 skb = req->skb;
451 req->skb = NULL;
452
453 if (urb->status == 0) {
454 devinfo->bus_pub.bus->dstats.rx_packets++;
455 } else {
456 devinfo->bus_pub.bus->dstats.rx_errors++;
457 brcmu_pkt_buf_free_skb(skb);
458 brcmf_usb_enq(devinfo, &devinfo->rx_freeq, req, NULL);
459 return;
460 }
461
462 if (devinfo->bus_pub.state == BRCMFMAC_USB_STATE_UP) {
463 skb_put(skb, urb->actual_length);
464 if (brcmf_proto_hdrpull(devinfo->dev, &ifidx, skb) != 0) {
465 brcmf_err("rx protocol error\n");
466 brcmu_pkt_buf_free_skb(skb);
467 devinfo->bus_pub.bus->dstats.rx_errors++;
468 } else
469 brcmf_rx_packet(devinfo->dev, ifidx, skb);
470 brcmf_usb_rx_refill(devinfo, req);
471 } else {
472 brcmu_pkt_buf_free_skb(skb);
473 brcmf_usb_enq(devinfo, &devinfo->rx_freeq, req, NULL);
474 }
475 return;
476
477}
478
479static void brcmf_usb_rx_refill(struct brcmf_usbdev_info *devinfo,
480 struct brcmf_usbreq *req)
481{
482 struct sk_buff *skb;
483 int ret;
484
485 if (!req || !devinfo)
486 return;
487
488 skb = dev_alloc_skb(devinfo->bus_pub.bus_mtu);
489 if (!skb) {
490 brcmf_usb_enq(devinfo, &devinfo->rx_freeq, req, NULL);
491 return;
492 }
493 req->skb = skb;
494
495 usb_fill_bulk_urb(req->urb, devinfo->usbdev, devinfo->rx_pipe,
496 skb->data, skb_tailroom(skb), brcmf_usb_rx_complete,
497 req);
498 req->devinfo = devinfo;
499 brcmf_usb_enq(devinfo, &devinfo->rx_postq, req, NULL);
500
501 ret = usb_submit_urb(req->urb, GFP_ATOMIC);
502 if (ret) {
503 brcmf_usb_del_fromq(devinfo, req);
504 brcmu_pkt_buf_free_skb(req->skb);
505 req->skb = NULL;
506 brcmf_usb_enq(devinfo, &devinfo->rx_freeq, req, NULL);
507 }
508 return;
509}
510
511static void brcmf_usb_rx_fill_all(struct brcmf_usbdev_info *devinfo)
512{
513 struct brcmf_usbreq *req;
514
515 if (devinfo->bus_pub.state != BRCMFMAC_USB_STATE_UP) {
516 brcmf_err("bus is not up=%d\n", devinfo->bus_pub.state);
517 return;
518 }
519 while ((req = brcmf_usb_deq(devinfo, &devinfo->rx_freeq, NULL)) != NULL)
520 brcmf_usb_rx_refill(devinfo, req);
521}
522
523static void
524brcmf_usb_state_change(struct brcmf_usbdev_info *devinfo, int state)
525{
526 struct brcmf_bus *bcmf_bus = devinfo->bus_pub.bus;
527 int old_state;
528
529 brcmf_dbg(USB, "Enter, current state=%d, new state=%d\n",
530 devinfo->bus_pub.state, state);
531
532 if (devinfo->bus_pub.state == state)
533 return;
534
535 old_state = devinfo->bus_pub.state;
536 devinfo->bus_pub.state = state;
537
538
539 if (state == BRCMFMAC_USB_STATE_DOWN) {
540 brcmf_dbg(USB, "DBUS is down\n");
541 bcmf_bus->state = BRCMF_BUS_DOWN;
542 } else if (state == BRCMFMAC_USB_STATE_UP) {
543 brcmf_dbg(USB, "DBUS is up\n");
544 bcmf_bus->state = BRCMF_BUS_DATA;
545 } else {
546 brcmf_dbg(USB, "DBUS current state=%d\n", state);
547 }
548}
549
550static void
551brcmf_usb_intr_complete(struct urb *urb)
552{
553 struct brcmf_usbdev_info *devinfo =
554 (struct brcmf_usbdev_info *)urb->context;
555 int err;
556
557 brcmf_dbg(USB, "Enter, urb->status=%d\n", urb->status);
558
559 if (devinfo == NULL)
560 return;
561
562 if (unlikely(urb->status)) {
563 if (urb->status == -ENOENT ||
564 urb->status == -ESHUTDOWN ||
565 urb->status == -ENODEV) {
566 brcmf_usb_state_change(devinfo,
567 BRCMFMAC_USB_STATE_DOWN);
568 }
569 }
570
571 if (devinfo->bus_pub.state == BRCMFMAC_USB_STATE_DOWN) {
572 brcmf_err("intr cb when DBUS down, ignoring\n");
573 return;
574 }
575
576 if (devinfo->bus_pub.state == BRCMFMAC_USB_STATE_UP) {
577 err = usb_submit_urb(devinfo->intr_urb, GFP_ATOMIC);
578 if (err)
579 brcmf_err("usb_submit_urb, err=%d\n", err);
580 }
581}
582
583static int brcmf_usb_tx(struct device *dev, struct sk_buff *skb)
584{
585 struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(dev);
586 struct brcmf_usbreq *req;
587 int ret;
588
589 brcmf_dbg(USB, "Enter, skb=%p\n", skb);
590 if (devinfo->bus_pub.state != BRCMFMAC_USB_STATE_UP)
591 return -EIO;
592
593 req = brcmf_usb_deq(devinfo, &devinfo->tx_freeq,
594 &devinfo->tx_freecount);
595 if (!req) {
596 brcmu_pkt_buf_free_skb(skb);
597 brcmf_err("no req to send\n");
598 return -ENOMEM;
599 }
600
601 req->skb = skb;
602 req->devinfo = devinfo;
603 usb_fill_bulk_urb(req->urb, devinfo->usbdev, devinfo->tx_pipe,
604 skb->data, skb->len, brcmf_usb_tx_complete, req);
605 req->urb->transfer_flags |= URB_ZERO_PACKET;
606 brcmf_usb_enq(devinfo, &devinfo->tx_postq, req, NULL);
607 ret = usb_submit_urb(req->urb, GFP_ATOMIC);
608 if (ret) {
609 brcmf_err("brcmf_usb_tx usb_submit_urb FAILED\n");
610 brcmf_usb_del_fromq(devinfo, req);
611 brcmu_pkt_buf_free_skb(req->skb);
612 req->skb = NULL;
613 brcmf_usb_enq(devinfo, &devinfo->tx_freeq, req,
614 &devinfo->tx_freecount);
615 } else {
616 if (devinfo->tx_freecount < devinfo->tx_low_watermark &&
617 !devinfo->tx_flowblock) {
618 brcmf_txflowblock(dev, true);
619 devinfo->tx_flowblock = true;
620 }
621 }
622
623 return ret;
624}
625
626
627static int brcmf_usb_up(struct device *dev)
628{
629 struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(dev);
630 u16 ifnum;
631 int ret;
632
633 brcmf_dbg(USB, "Enter\n");
634 if (devinfo->bus_pub.state == BRCMFMAC_USB_STATE_UP)
635 return 0;
636
637
638 brcmf_usb_state_change(devinfo, BRCMFMAC_USB_STATE_UP);
639
640 if (devinfo->intr_urb) {
641 usb_fill_int_urb(devinfo->intr_urb, devinfo->usbdev,
642 devinfo->intr_pipe,
643 &devinfo->intr,
644 devinfo->intr_size,
645 (usb_complete_t)brcmf_usb_intr_complete,
646 devinfo,
647 devinfo->interval);
648
649 ret = usb_submit_urb(devinfo->intr_urb, GFP_ATOMIC);
650 if (ret) {
651 brcmf_err("USB_SUBMIT_URB failed with status %d\n",
652 ret);
653 return -EINVAL;
654 }
655 }
656
657 if (devinfo->ctl_urb) {
658 devinfo->ctl_in_pipe = usb_rcvctrlpipe(devinfo->usbdev, 0);
659 devinfo->ctl_out_pipe = usb_sndctrlpipe(devinfo->usbdev, 0);
660
661 ifnum = IFDESC(devinfo->usbdev, CONTROL_IF).bInterfaceNumber;
662
663
664 devinfo->ctl_write.bRequestType =
665 USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE;
666 devinfo->ctl_write.bRequest = 0;
667 devinfo->ctl_write.wValue = cpu_to_le16(0);
668 devinfo->ctl_write.wIndex = cpu_to_le16p(&ifnum);
669
670
671 devinfo->ctl_read.bRequestType =
672 USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE;
673 devinfo->ctl_read.bRequest = 1;
674 devinfo->ctl_read.wValue = cpu_to_le16(0);
675 devinfo->ctl_read.wIndex = cpu_to_le16p(&ifnum);
676 }
677 brcmf_usb_rx_fill_all(devinfo);
678 return 0;
679}
680
681static void brcmf_usb_down(struct device *dev)
682{
683 struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(dev);
684
685 brcmf_dbg(USB, "Enter\n");
686 if (devinfo == NULL)
687 return;
688
689 if (devinfo->bus_pub.state == BRCMFMAC_USB_STATE_DOWN)
690 return;
691
692 brcmf_usb_state_change(devinfo, BRCMFMAC_USB_STATE_DOWN);
693 if (devinfo->intr_urb)
694 usb_kill_urb(devinfo->intr_urb);
695
696 if (devinfo->ctl_urb)
697 usb_kill_urb(devinfo->ctl_urb);
698
699 if (devinfo->bulk_urb)
700 usb_kill_urb(devinfo->bulk_urb);
701 brcmf_usb_free_q(&devinfo->tx_postq, true);
702
703 brcmf_usb_free_q(&devinfo->rx_postq, true);
704}
705
706static void
707brcmf_usb_sync_complete(struct urb *urb)
708{
709 struct brcmf_usbdev_info *devinfo =
710 (struct brcmf_usbdev_info *)urb->context;
711
712 devinfo->ctl_completed = true;
713 brcmf_usb_ioctl_resp_wake(devinfo);
714}
715
716static bool brcmf_usb_dl_cmd(struct brcmf_usbdev_info *devinfo, u8 cmd,
717 void *buffer, int buflen)
718{
719 int ret = 0;
720 char *tmpbuf;
721 u16 size;
722
723 if ((!devinfo) || (devinfo->ctl_urb == NULL))
724 return false;
725
726 tmpbuf = kmalloc(buflen, GFP_ATOMIC);
727 if (!tmpbuf)
728 return false;
729
730 size = buflen;
731 devinfo->ctl_urb->transfer_buffer_length = size;
732
733 devinfo->ctl_read.wLength = cpu_to_le16p(&size);
734 devinfo->ctl_read.bRequestType = USB_DIR_IN | USB_TYPE_VENDOR |
735 USB_RECIP_INTERFACE;
736 devinfo->ctl_read.bRequest = cmd;
737
738 usb_fill_control_urb(devinfo->ctl_urb,
739 devinfo->usbdev,
740 usb_rcvctrlpipe(devinfo->usbdev, 0),
741 (unsigned char *) &devinfo->ctl_read,
742 (void *) tmpbuf, size,
743 (usb_complete_t)brcmf_usb_sync_complete, devinfo);
744
745 devinfo->ctl_completed = false;
746 ret = usb_submit_urb(devinfo->ctl_urb, GFP_ATOMIC);
747 if (ret < 0) {
748 brcmf_err("usb_submit_urb failed %d\n", ret);
749 kfree(tmpbuf);
750 return false;
751 }
752
753 ret = brcmf_usb_ioctl_resp_wait(devinfo);
754 memcpy(buffer, tmpbuf, buflen);
755 kfree(tmpbuf);
756
757 return ret;
758}
759
760static bool
761brcmf_usb_dlneeded(struct brcmf_usbdev_info *devinfo)
762{
763 struct bootrom_id_le id;
764 u32 chipid, chiprev;
765
766 brcmf_dbg(USB, "Enter\n");
767
768 if (devinfo == NULL)
769 return false;
770
771
772 id.chip = cpu_to_le32(0xDEAD);
773 brcmf_usb_dl_cmd(devinfo, DL_GETVER, &id, sizeof(id));
774
775 chipid = le32_to_cpu(id.chip);
776 chiprev = le32_to_cpu(id.chiprev);
777
778 if ((chipid & 0x4300) == 0x4300)
779 brcmf_dbg(USB, "chip %x rev 0x%x\n", chipid, chiprev);
780 else
781 brcmf_dbg(USB, "chip %d rev 0x%x\n", chipid, chiprev);
782 if (chipid == BRCMF_POSTBOOT_ID) {
783 brcmf_dbg(USB, "firmware already downloaded\n");
784 brcmf_usb_dl_cmd(devinfo, DL_RESETCFG, &id, sizeof(id));
785 return false;
786 } else {
787 devinfo->bus_pub.devid = chipid;
788 devinfo->bus_pub.chiprev = chiprev;
789 }
790 return true;
791}
792
793static int
794brcmf_usb_resetcfg(struct brcmf_usbdev_info *devinfo)
795{
796 struct bootrom_id_le id;
797 u32 loop_cnt;
798
799 brcmf_dbg(USB, "Enter\n");
800
801 loop_cnt = 0;
802 do {
803 mdelay(BRCMF_USB_RESET_GETVER_SPINWAIT);
804 loop_cnt++;
805 id.chip = cpu_to_le32(0xDEAD);
806 brcmf_usb_dl_cmd(devinfo, DL_GETVER, &id, sizeof(id));
807 if (id.chip == cpu_to_le32(BRCMF_POSTBOOT_ID))
808 break;
809 } while (loop_cnt < BRCMF_USB_RESET_GETVER_LOOP_CNT);
810
811 if (id.chip == cpu_to_le32(BRCMF_POSTBOOT_ID)) {
812 brcmf_dbg(USB, "postboot chip 0x%x/rev 0x%x\n",
813 le32_to_cpu(id.chip), le32_to_cpu(id.chiprev));
814
815 brcmf_usb_dl_cmd(devinfo, DL_RESETCFG, &id, sizeof(id));
816 return 0;
817 } else {
818 brcmf_err("Cannot talk to Dongle. Firmware is not UP, %d ms\n",
819 BRCMF_USB_RESET_GETVER_SPINWAIT * loop_cnt);
820 return -EINVAL;
821 }
822}
823
824
825static int
826brcmf_usb_dl_send_bulk(struct brcmf_usbdev_info *devinfo, void *buffer, int len)
827{
828 int ret;
829
830 if ((devinfo == NULL) || (devinfo->bulk_urb == NULL))
831 return -EINVAL;
832
833
834 usb_fill_bulk_urb(devinfo->bulk_urb, devinfo->usbdev,
835 devinfo->tx_pipe, buffer, len,
836 (usb_complete_t)brcmf_usb_sync_complete, devinfo);
837
838 devinfo->bulk_urb->transfer_flags |= URB_ZERO_PACKET;
839
840 devinfo->ctl_completed = false;
841 ret = usb_submit_urb(devinfo->bulk_urb, GFP_ATOMIC);
842 if (ret) {
843 brcmf_err("usb_submit_urb failed %d\n", ret);
844 return ret;
845 }
846 ret = brcmf_usb_ioctl_resp_wait(devinfo);
847 return (ret == 0);
848}
849
850static int
851brcmf_usb_dl_writeimage(struct brcmf_usbdev_info *devinfo, u8 *fw, int fwlen)
852{
853 unsigned int sendlen, sent, dllen;
854 char *bulkchunk = NULL, *dlpos;
855 struct rdl_state_le state;
856 u32 rdlstate, rdlbytes;
857 int err = 0;
858
859 brcmf_dbg(USB, "Enter, fw %p, len %d\n", fw, fwlen);
860
861 bulkchunk = kmalloc(RDL_CHUNK, GFP_ATOMIC);
862 if (bulkchunk == NULL) {
863 err = -ENOMEM;
864 goto fail;
865 }
866
867
868 brcmf_usb_dl_cmd(devinfo, DL_START, &state,
869 sizeof(struct rdl_state_le));
870
871 rdlstate = le32_to_cpu(state.state);
872 rdlbytes = le32_to_cpu(state.bytes);
873
874
875 if (rdlstate != DL_WAITING) {
876 brcmf_err("Failed to DL_START\n");
877 err = -EINVAL;
878 goto fail;
879 }
880 sent = 0;
881 dlpos = fw;
882 dllen = fwlen;
883
884
885 while (rdlbytes != dllen) {
886
887
888 if ((rdlbytes == sent) && (rdlbytes != dllen)) {
889 if ((dllen-sent) < RDL_CHUNK)
890 sendlen = dllen-sent;
891 else
892 sendlen = RDL_CHUNK;
893
894
895
896
897
898 if (!(sendlen % 64))
899 sendlen -= 4;
900
901
902 memcpy(bulkchunk, dlpos, sendlen);
903 if (brcmf_usb_dl_send_bulk(devinfo, bulkchunk,
904 sendlen)) {
905 brcmf_err("send_bulk failed\n");
906 err = -EINVAL;
907 goto fail;
908 }
909
910 dlpos += sendlen;
911 sent += sendlen;
912 }
913 if (!brcmf_usb_dl_cmd(devinfo, DL_GETSTATE, &state,
914 sizeof(struct rdl_state_le))) {
915 brcmf_err("DL_GETSTATE Failed xxxx\n");
916 err = -EINVAL;
917 goto fail;
918 }
919
920 rdlstate = le32_to_cpu(state.state);
921 rdlbytes = le32_to_cpu(state.bytes);
922
923
924 if (rdlstate == DL_BAD_HDR || rdlstate == DL_BAD_CRC) {
925 brcmf_err("Bad Hdr or Bad CRC state %d\n",
926 rdlstate);
927 err = -EINVAL;
928 goto fail;
929 }
930 }
931
932fail:
933 kfree(bulkchunk);
934 brcmf_dbg(USB, "Exit, err=%d\n", err);
935 return err;
936}
937
938static int brcmf_usb_dlstart(struct brcmf_usbdev_info *devinfo, u8 *fw, int len)
939{
940 int err;
941
942 brcmf_dbg(USB, "Enter\n");
943
944 if (devinfo == NULL)
945 return -EINVAL;
946
947 if (devinfo->bus_pub.devid == 0xDEAD)
948 return -EINVAL;
949
950 err = brcmf_usb_dl_writeimage(devinfo, fw, len);
951 if (err == 0)
952 devinfo->bus_pub.state = BRCMFMAC_USB_STATE_DL_DONE;
953 else
954 devinfo->bus_pub.state = BRCMFMAC_USB_STATE_DL_FAIL;
955 brcmf_dbg(USB, "Exit, err=%d\n", err);
956
957 return err;
958}
959
960static int brcmf_usb_dlrun(struct brcmf_usbdev_info *devinfo)
961{
962 struct rdl_state_le state;
963
964 brcmf_dbg(USB, "Enter\n");
965 if (!devinfo)
966 return -EINVAL;
967
968 if (devinfo->bus_pub.devid == 0xDEAD)
969 return -EINVAL;
970
971
972 brcmf_usb_dl_cmd(devinfo, DL_GETSTATE, &state,
973 sizeof(struct rdl_state_le));
974
975
976 if (state.state == cpu_to_le32(DL_RUNNABLE)) {
977 if (!brcmf_usb_dl_cmd(devinfo, DL_GO, &state,
978 sizeof(struct rdl_state_le)))
979 return -ENODEV;
980 if (brcmf_usb_resetcfg(devinfo))
981 return -ENODEV;
982
983 } else {
984 brcmf_err("Dongle not runnable\n");
985 return -EINVAL;
986 }
987 brcmf_dbg(USB, "Exit\n");
988 return 0;
989}
990
991static bool brcmf_usb_chip_support(int chipid, int chiprev)
992{
993 switch(chipid) {
994 case 43143:
995 return true;
996 case 43235:
997 case 43236:
998 case 43238:
999 return (chiprev == 3);
1000 case 43242:
1001 return true;
1002 default:
1003 break;
1004 }
1005 return false;
1006}
1007
1008static int
1009brcmf_usb_fw_download(struct brcmf_usbdev_info *devinfo)
1010{
1011 int devid, chiprev;
1012 int err;
1013
1014 brcmf_dbg(USB, "Enter\n");
1015 if (devinfo == NULL)
1016 return -ENODEV;
1017
1018 devid = devinfo->bus_pub.devid;
1019 chiprev = devinfo->bus_pub.chiprev;
1020
1021 if (!brcmf_usb_chip_support(devid, chiprev)) {
1022 brcmf_err("unsupported chip %d rev %d\n",
1023 devid, chiprev);
1024 return -EINVAL;
1025 }
1026
1027 if (!devinfo->image) {
1028 brcmf_err("No firmware!\n");
1029 return -ENOENT;
1030 }
1031
1032 err = brcmf_usb_dlstart(devinfo,
1033 devinfo->image, devinfo->image_len);
1034 if (err == 0)
1035 err = brcmf_usb_dlrun(devinfo);
1036 return err;
1037}
1038
1039
1040static void brcmf_usb_detach(struct brcmf_usbdev_info *devinfo)
1041{
1042 brcmf_dbg(USB, "Enter, devinfo %p\n", devinfo);
1043
1044
1045 brcmf_usb_free_q(&devinfo->rx_freeq, false);
1046 brcmf_usb_free_q(&devinfo->tx_freeq, false);
1047
1048 usb_free_urb(devinfo->intr_urb);
1049 usb_free_urb(devinfo->ctl_urb);
1050 usb_free_urb(devinfo->bulk_urb);
1051
1052 kfree(devinfo->tx_reqs);
1053 kfree(devinfo->rx_reqs);
1054}
1055
1056#define TRX_MAGIC 0x30524448
1057#define TRX_VERSION 1
1058#define TRX_MAX_LEN 0x3B0000
1059#define TRX_NO_HEADER 1
1060#define TRX_MAX_OFFSET 3
1061#define TRX_UNCOMP_IMAGE 0x20
1062
1063struct trx_header_le {
1064 __le32 magic;
1065 __le32 len;
1066 __le32 crc32;
1067 __le32 flag_version;
1068 __le32 offsets[TRX_MAX_OFFSET];
1069
1070};
1071
1072static int check_file(const u8 *headers)
1073{
1074 struct trx_header_le *trx;
1075 int actual_len = -1;
1076
1077 brcmf_dbg(USB, "Enter\n");
1078
1079 trx = (struct trx_header_le *) headers;
1080 if (trx->magic != cpu_to_le32(TRX_MAGIC))
1081 return -1;
1082
1083 headers += sizeof(struct trx_header_le);
1084
1085 if (le32_to_cpu(trx->flag_version) & TRX_UNCOMP_IMAGE) {
1086 actual_len = le32_to_cpu(trx->offsets[TRX_OFFSETS_DLFWLEN_IDX]);
1087 return actual_len + sizeof(struct trx_header_le);
1088 }
1089 return -1;
1090}
1091
1092static int brcmf_usb_get_fw(struct brcmf_usbdev_info *devinfo)
1093{
1094 s8 *fwname;
1095 const struct firmware *fw;
1096 struct brcmf_usb_image *fw_image;
1097 int err;
1098
1099 brcmf_dbg(USB, "Enter\n");
1100 switch (devinfo->bus_pub.devid) {
1101 case 43143:
1102 fwname = BRCMF_USB_43143_FW_NAME;
1103 break;
1104 case 43235:
1105 case 43236:
1106 case 43238:
1107 fwname = BRCMF_USB_43236_FW_NAME;
1108 break;
1109 case 43242:
1110 fwname = BRCMF_USB_43242_FW_NAME;
1111 break;
1112 default:
1113 return -EINVAL;
1114 break;
1115 }
1116 brcmf_dbg(USB, "Loading FW %s\n", fwname);
1117 list_for_each_entry(fw_image, &fw_image_list, list) {
1118 if (fw_image->fwname == fwname) {
1119 devinfo->image = fw_image->image;
1120 devinfo->image_len = fw_image->image_len;
1121 return 0;
1122 }
1123 }
1124
1125 err = request_firmware(&fw, fwname, devinfo->dev);
1126 if (!fw) {
1127 brcmf_err("fail to request firmware %s\n", fwname);
1128 return err;
1129 }
1130 if (check_file(fw->data) < 0) {
1131 brcmf_err("invalid firmware %s\n", fwname);
1132 return -EINVAL;
1133 }
1134
1135 fw_image = kzalloc(sizeof(*fw_image), GFP_ATOMIC);
1136 if (!fw_image)
1137 return -ENOMEM;
1138 INIT_LIST_HEAD(&fw_image->list);
1139 list_add_tail(&fw_image->list, &fw_image_list);
1140 fw_image->fwname = fwname;
1141 fw_image->image = vmalloc(fw->size);
1142 if (!fw_image->image)
1143 return -ENOMEM;
1144
1145 memcpy(fw_image->image, fw->data, fw->size);
1146 fw_image->image_len = fw->size;
1147
1148 release_firmware(fw);
1149
1150 devinfo->image = fw_image->image;
1151 devinfo->image_len = fw_image->image_len;
1152
1153 return 0;
1154}
1155
1156
1157static
1158struct brcmf_usbdev *brcmf_usb_attach(struct brcmf_usbdev_info *devinfo,
1159 int nrxq, int ntxq)
1160{
1161 brcmf_dbg(USB, "Enter\n");
1162
1163 devinfo->bus_pub.nrxq = nrxq;
1164 devinfo->rx_low_watermark = nrxq / 2;
1165 devinfo->bus_pub.devinfo = devinfo;
1166 devinfo->bus_pub.ntxq = ntxq;
1167 devinfo->bus_pub.state = BRCMFMAC_USB_STATE_DOWN;
1168
1169
1170 devinfo->tx_low_watermark = ntxq / 4;
1171 devinfo->tx_high_watermark = devinfo->tx_low_watermark * 3;
1172 devinfo->bus_pub.bus_mtu = BRCMF_USB_MAX_PKT_SIZE;
1173
1174
1175 init_waitqueue_head(&devinfo->ioctl_resp_wait);
1176
1177
1178 spin_lock_init(&devinfo->qlock);
1179
1180 INIT_LIST_HEAD(&devinfo->rx_freeq);
1181 INIT_LIST_HEAD(&devinfo->rx_postq);
1182
1183 INIT_LIST_HEAD(&devinfo->tx_freeq);
1184 INIT_LIST_HEAD(&devinfo->tx_postq);
1185
1186 devinfo->tx_flowblock = false;
1187
1188 devinfo->rx_reqs = brcmf_usbdev_qinit(&devinfo->rx_freeq, nrxq);
1189 if (!devinfo->rx_reqs)
1190 goto error;
1191
1192 devinfo->tx_reqs = brcmf_usbdev_qinit(&devinfo->tx_freeq, ntxq);
1193 if (!devinfo->tx_reqs)
1194 goto error;
1195 devinfo->tx_freecount = ntxq;
1196
1197 devinfo->intr_urb = usb_alloc_urb(0, GFP_ATOMIC);
1198 if (!devinfo->intr_urb) {
1199 brcmf_err("usb_alloc_urb (intr) failed\n");
1200 goto error;
1201 }
1202 devinfo->ctl_urb = usb_alloc_urb(0, GFP_ATOMIC);
1203 if (!devinfo->ctl_urb) {
1204 brcmf_err("usb_alloc_urb (ctl) failed\n");
1205 goto error;
1206 }
1207 devinfo->bulk_urb = usb_alloc_urb(0, GFP_ATOMIC);
1208 if (!devinfo->bulk_urb) {
1209 brcmf_err("usb_alloc_urb (bulk) failed\n");
1210 goto error;
1211 }
1212
1213 if (!brcmf_usb_dlneeded(devinfo))
1214 return &devinfo->bus_pub;
1215
1216 brcmf_dbg(USB, "Start fw downloading\n");
1217 if (brcmf_usb_get_fw(devinfo))
1218 goto error;
1219
1220 if (brcmf_usb_fw_download(devinfo))
1221 goto error;
1222
1223 return &devinfo->bus_pub;
1224
1225error:
1226 brcmf_err("failed!\n");
1227 brcmf_usb_detach(devinfo);
1228 return NULL;
1229}
1230
1231static struct brcmf_bus_ops brcmf_usb_bus_ops = {
1232 .txdata = brcmf_usb_tx,
1233 .init = brcmf_usb_up,
1234 .stop = brcmf_usb_down,
1235 .txctl = brcmf_usb_tx_ctlpkt,
1236 .rxctl = brcmf_usb_rx_ctlpkt,
1237};
1238
1239static int brcmf_usb_probe_cb(struct brcmf_usbdev_info *devinfo)
1240{
1241 struct brcmf_bus *bus = NULL;
1242 struct brcmf_usbdev *bus_pub = NULL;
1243 int ret;
1244 struct device *dev = devinfo->dev;
1245
1246 brcmf_dbg(USB, "Enter\n");
1247 bus_pub = brcmf_usb_attach(devinfo, BRCMF_USB_NRXQ, BRCMF_USB_NTXQ);
1248 if (!bus_pub)
1249 return -ENODEV;
1250
1251 bus = kzalloc(sizeof(struct brcmf_bus), GFP_ATOMIC);
1252 if (!bus) {
1253 ret = -ENOMEM;
1254 goto fail;
1255 }
1256
1257 bus->dev = dev;
1258 bus_pub->bus = bus;
1259 bus->bus_priv.usb = bus_pub;
1260 dev_set_drvdata(dev, bus);
1261 bus->ops = &brcmf_usb_bus_ops;
1262
1263
1264 ret = brcmf_attach(0, dev);
1265 if (ret) {
1266 brcmf_err("brcmf_attach failed\n");
1267 goto fail;
1268 }
1269
1270 ret = brcmf_bus_start(dev);
1271 if (ret) {
1272 brcmf_err("dongle is not responding\n");
1273 brcmf_detach(dev);
1274 goto fail;
1275 }
1276
1277 return 0;
1278fail:
1279
1280 kfree(bus);
1281 brcmf_usb_detach(devinfo);
1282 return ret;
1283}
1284
1285static void
1286brcmf_usb_disconnect_cb(struct brcmf_usbdev_info *devinfo)
1287{
1288 if (!devinfo)
1289 return;
1290 brcmf_dbg(USB, "Enter, bus_pub %p\n", devinfo);
1291
1292 brcmf_detach(devinfo->dev);
1293 kfree(devinfo->bus_pub.bus);
1294 brcmf_usb_detach(devinfo);
1295}
1296
1297static int
1298brcmf_usb_probe(struct usb_interface *intf, const struct usb_device_id *id)
1299{
1300 int ep;
1301 struct usb_endpoint_descriptor *endpoint;
1302 int ret = 0;
1303 struct usb_device *usb = interface_to_usbdev(intf);
1304 int num_of_eps;
1305 u8 endpoint_num;
1306 struct brcmf_usbdev_info *devinfo;
1307
1308 brcmf_dbg(USB, "Enter\n");
1309
1310 devinfo = kzalloc(sizeof(*devinfo), GFP_ATOMIC);
1311 if (devinfo == NULL)
1312 return -ENOMEM;
1313
1314 devinfo->usbdev = usb;
1315 devinfo->dev = &usb->dev;
1316
1317 usb_set_intfdata(intf, devinfo);
1318
1319
1320 if (usb->descriptor.bNumConfigurations != 1) {
1321 ret = -1;
1322 goto fail;
1323 }
1324
1325 if (usb->descriptor.bDeviceClass != USB_CLASS_VENDOR_SPEC) {
1326 ret = -1;
1327 goto fail;
1328 }
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338 if (CONFIGDESC(usb)->bNumInterfaces != 1) {
1339 ret = -1;
1340 goto fail;
1341 }
1342
1343
1344 if (IFDESC(usb, CONTROL_IF).bInterfaceClass != USB_CLASS_VENDOR_SPEC ||
1345 IFDESC(usb, CONTROL_IF).bInterfaceSubClass != 2 ||
1346 IFDESC(usb, CONTROL_IF).bInterfaceProtocol != 0xff) {
1347 brcmf_err("invalid control interface: class %d, subclass %d, proto %d\n",
1348 IFDESC(usb, CONTROL_IF).bInterfaceClass,
1349 IFDESC(usb, CONTROL_IF).bInterfaceSubClass,
1350 IFDESC(usb, CONTROL_IF).bInterfaceProtocol);
1351 ret = -1;
1352 goto fail;
1353 }
1354
1355
1356 endpoint = &IFEPDESC(usb, CONTROL_IF, 0);
1357 if ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
1358 != USB_ENDPOINT_XFER_INT) {
1359 brcmf_err("invalid control endpoint %d\n",
1360 endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK);
1361 ret = -1;
1362 goto fail;
1363 }
1364
1365 endpoint_num = endpoint->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK;
1366 devinfo->intr_pipe = usb_rcvintpipe(usb, endpoint_num);
1367
1368 devinfo->rx_pipe = 0;
1369 devinfo->rx_pipe2 = 0;
1370 devinfo->tx_pipe = 0;
1371 num_of_eps = IFDESC(usb, BULK_IF).bNumEndpoints - 1;
1372
1373
1374 for (ep = 1; ep <= num_of_eps; ep++) {
1375 endpoint = &IFEPDESC(usb, BULK_IF, ep);
1376 if ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) !=
1377 USB_ENDPOINT_XFER_BULK) {
1378 brcmf_err("invalid data endpoint %d\n", ep);
1379 ret = -1;
1380 goto fail;
1381 }
1382
1383 endpoint_num = endpoint->bEndpointAddress &
1384 USB_ENDPOINT_NUMBER_MASK;
1385 if ((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
1386 == USB_DIR_IN) {
1387 if (!devinfo->rx_pipe) {
1388 devinfo->rx_pipe =
1389 usb_rcvbulkpipe(usb, endpoint_num);
1390 } else {
1391 devinfo->rx_pipe2 =
1392 usb_rcvbulkpipe(usb, endpoint_num);
1393 }
1394 } else {
1395 devinfo->tx_pipe = usb_sndbulkpipe(usb, endpoint_num);
1396 }
1397 }
1398
1399
1400
1401 if (IFEPDESC(usb, CONTROL_IF, 0).wMaxPacketSize == cpu_to_le16(16))
1402 devinfo->intr_size = 8;
1403 else
1404 devinfo->intr_size = 4;
1405
1406 devinfo->interval = IFEPDESC(usb, CONTROL_IF, 0).bInterval;
1407
1408 if (usb->speed == USB_SPEED_HIGH)
1409 brcmf_dbg(USB, "Broadcom high speed USB wireless device detected\n");
1410 else
1411 brcmf_dbg(USB, "Broadcom full speed USB wireless device detected\n");
1412
1413 ret = brcmf_usb_probe_cb(devinfo);
1414 if (ret)
1415 goto fail;
1416
1417
1418 return 0;
1419
1420fail:
1421 brcmf_err("failed with errno %d\n", ret);
1422 kfree(devinfo);
1423 usb_set_intfdata(intf, NULL);
1424 return ret;
1425
1426}
1427
1428static void
1429brcmf_usb_disconnect(struct usb_interface *intf)
1430{
1431 struct brcmf_usbdev_info *devinfo;
1432
1433 brcmf_dbg(USB, "Enter\n");
1434 devinfo = (struct brcmf_usbdev_info *)usb_get_intfdata(intf);
1435 brcmf_usb_disconnect_cb(devinfo);
1436 kfree(devinfo);
1437 brcmf_dbg(USB, "Exit\n");
1438}
1439
1440
1441
1442
1443static int brcmf_usb_suspend(struct usb_interface *intf, pm_message_t state)
1444{
1445 struct usb_device *usb = interface_to_usbdev(intf);
1446 struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(&usb->dev);
1447
1448 brcmf_dbg(USB, "Enter\n");
1449 devinfo->bus_pub.state = BRCMFMAC_USB_STATE_SLEEP;
1450 brcmf_detach(&usb->dev);
1451 return 0;
1452}
1453
1454
1455
1456
1457static int brcmf_usb_resume(struct usb_interface *intf)
1458{
1459 struct usb_device *usb = interface_to_usbdev(intf);
1460 struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(&usb->dev);
1461
1462 brcmf_dbg(USB, "Enter\n");
1463 if (!brcmf_attach(0, devinfo->dev))
1464 return brcmf_bus_start(&usb->dev);
1465
1466 return 0;
1467}
1468
1469static int brcmf_usb_reset_resume(struct usb_interface *intf)
1470{
1471 struct usb_device *usb = interface_to_usbdev(intf);
1472 struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(&usb->dev);
1473
1474 brcmf_dbg(USB, "Enter\n");
1475
1476 if (!brcmf_usb_fw_download(devinfo))
1477 return brcmf_usb_resume(intf);
1478
1479 return -EIO;
1480}
1481
1482#define BRCMF_USB_VENDOR_ID_BROADCOM 0x0a5c
1483#define BRCMF_USB_DEVICE_ID_43143 0xbd1e
1484#define BRCMF_USB_DEVICE_ID_43236 0xbd17
1485#define BRCMF_USB_DEVICE_ID_43242 0xbd1f
1486#define BRCMF_USB_DEVICE_ID_BCMFW 0x0bdc
1487
1488static struct usb_device_id brcmf_usb_devid_table[] = {
1489 { USB_DEVICE(BRCMF_USB_VENDOR_ID_BROADCOM, BRCMF_USB_DEVICE_ID_43143) },
1490 { USB_DEVICE(BRCMF_USB_VENDOR_ID_BROADCOM, BRCMF_USB_DEVICE_ID_43236) },
1491 { USB_DEVICE(BRCMF_USB_VENDOR_ID_BROADCOM, BRCMF_USB_DEVICE_ID_43242) },
1492
1493 { USB_DEVICE(BRCMF_USB_VENDOR_ID_BROADCOM, BRCMF_USB_DEVICE_ID_BCMFW) },
1494 { }
1495};
1496MODULE_DEVICE_TABLE(usb, brcmf_usb_devid_table);
1497MODULE_FIRMWARE(BRCMF_USB_43143_FW_NAME);
1498MODULE_FIRMWARE(BRCMF_USB_43236_FW_NAME);
1499MODULE_FIRMWARE(BRCMF_USB_43242_FW_NAME);
1500
1501static struct usb_driver brcmf_usbdrvr = {
1502 .name = KBUILD_MODNAME,
1503 .probe = brcmf_usb_probe,
1504 .disconnect = brcmf_usb_disconnect,
1505 .id_table = brcmf_usb_devid_table,
1506 .suspend = brcmf_usb_suspend,
1507 .resume = brcmf_usb_resume,
1508 .reset_resume = brcmf_usb_reset_resume,
1509 .supports_autosuspend = 1,
1510 .disable_hub_initiated_lpm = 1,
1511};
1512
1513static void brcmf_release_fw(struct list_head *q)
1514{
1515 struct brcmf_usb_image *fw_image, *next;
1516
1517 list_for_each_entry_safe(fw_image, next, q, list) {
1518 vfree(fw_image->image);
1519 list_del_init(&fw_image->list);
1520 }
1521}
1522
1523
1524void brcmf_usb_exit(void)
1525{
1526 brcmf_dbg(USB, "Enter\n");
1527 usb_deregister(&brcmf_usbdrvr);
1528 brcmf_release_fw(&fw_image_list);
1529}
1530
1531void brcmf_usb_init(void)
1532{
1533 brcmf_dbg(USB, "Enter\n");
1534 INIT_LIST_HEAD(&fw_image_list);
1535 usb_register(&brcmf_usbdrvr);
1536}
1537
