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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
115static struct brcmf_usbdev *brcmf_usb_get_buspub(struct device *dev)
116{
117 struct brcmf_bus *bus_if = dev_get_drvdata(dev);
118 return bus_if->bus_priv.usb;
119}
120
121static struct brcmf_usbdev_info *brcmf_usb_get_businfo(struct device *dev)
122{
123 return brcmf_usb_get_buspub(dev)->devinfo;
124}
125
126static int brcmf_usb_ioctl_resp_wait(struct brcmf_usbdev_info *devinfo)
127{
128 return wait_event_timeout(devinfo->ioctl_resp_wait,
129 devinfo->ctl_completed,
130 msecs_to_jiffies(IOCTL_RESP_TIMEOUT));
131}
132
133static void brcmf_usb_ioctl_resp_wake(struct brcmf_usbdev_info *devinfo)
134{
135 if (waitqueue_active(&devinfo->ioctl_resp_wait))
136 wake_up(&devinfo->ioctl_resp_wait);
137}
138
139static void
140brcmf_usb_ctl_complete(struct brcmf_usbdev_info *devinfo, int type, int status)
141{
142 brcmf_dbg(USB, "Enter, status=%d\n", status);
143
144 if (unlikely(devinfo == NULL))
145 return;
146
147 if (type == BRCMF_USB_CBCTL_READ) {
148 if (status == 0)
149 devinfo->bus_pub.stats.rx_ctlpkts++;
150 else
151 devinfo->bus_pub.stats.rx_ctlerrs++;
152 } else if (type == BRCMF_USB_CBCTL_WRITE) {
153 if (status == 0)
154 devinfo->bus_pub.stats.tx_ctlpkts++;
155 else
156 devinfo->bus_pub.stats.tx_ctlerrs++;
157 }
158
159 devinfo->ctl_urb_status = status;
160 devinfo->ctl_completed = true;
161 brcmf_usb_ioctl_resp_wake(devinfo);
162}
163
164static void
165brcmf_usb_ctlread_complete(struct urb *urb)
166{
167 struct brcmf_usbdev_info *devinfo =
168 (struct brcmf_usbdev_info *)urb->context;
169
170 brcmf_dbg(USB, "Enter\n");
171 devinfo->ctl_urb_actual_length = urb->actual_length;
172 brcmf_usb_ctl_complete(devinfo, BRCMF_USB_CBCTL_READ,
173 urb->status);
174}
175
176static void
177brcmf_usb_ctlwrite_complete(struct urb *urb)
178{
179 struct brcmf_usbdev_info *devinfo =
180 (struct brcmf_usbdev_info *)urb->context;
181
182 brcmf_dbg(USB, "Enter\n");
183 brcmf_usb_ctl_complete(devinfo, BRCMF_USB_CBCTL_WRITE,
184 urb->status);
185}
186
187static int
188brcmf_usb_send_ctl(struct brcmf_usbdev_info *devinfo, u8 *buf, int len)
189{
190 int ret;
191 u16 size;
192
193 brcmf_dbg(USB, "Enter\n");
194 if (devinfo == NULL || buf == NULL ||
195 len == 0 || devinfo->ctl_urb == NULL)
196 return -EINVAL;
197
198 size = len;
199 devinfo->ctl_write.wLength = cpu_to_le16p(&size);
200 devinfo->ctl_urb->transfer_buffer_length = size;
201 devinfo->ctl_urb_status = 0;
202 devinfo->ctl_urb_actual_length = 0;
203
204 usb_fill_control_urb(devinfo->ctl_urb,
205 devinfo->usbdev,
206 devinfo->ctl_out_pipe,
207 (unsigned char *) &devinfo->ctl_write,
208 buf, size,
209 (usb_complete_t)brcmf_usb_ctlwrite_complete,
210 devinfo);
211
212 ret = usb_submit_urb(devinfo->ctl_urb, GFP_ATOMIC);
213 if (ret < 0)
214 brcmf_err("usb_submit_urb failed %d\n", ret);
215
216 return ret;
217}
218
219static int
220brcmf_usb_recv_ctl(struct brcmf_usbdev_info *devinfo, u8 *buf, int len)
221{
222 int ret;
223 u16 size;
224
225 brcmf_dbg(USB, "Enter\n");
226 if ((devinfo == NULL) || (buf == NULL) || (len == 0)
227 || (devinfo->ctl_urb == NULL))
228 return -EINVAL;
229
230 size = len;
231 devinfo->ctl_read.wLength = cpu_to_le16p(&size);
232 devinfo->ctl_urb->transfer_buffer_length = size;
233
234 devinfo->ctl_read.bRequestType = USB_DIR_IN
235 | USB_TYPE_CLASS | USB_RECIP_INTERFACE;
236 devinfo->ctl_read.bRequest = 1;
237
238 usb_fill_control_urb(devinfo->ctl_urb,
239 devinfo->usbdev,
240 devinfo->ctl_in_pipe,
241 (unsigned char *) &devinfo->ctl_read,
242 buf, size,
243 (usb_complete_t)brcmf_usb_ctlread_complete,
244 devinfo);
245
246 ret = usb_submit_urb(devinfo->ctl_urb, GFP_ATOMIC);
247 if (ret < 0)
248 brcmf_err("usb_submit_urb failed %d\n", ret);
249
250 return ret;
251}
252
253static int brcmf_usb_tx_ctlpkt(struct device *dev, u8 *buf, u32 len)
254{
255 int err = 0;
256 int timeout = 0;
257 struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(dev);
258
259 brcmf_dbg(USB, "Enter\n");
260 if (devinfo->bus_pub.state != BRCMFMAC_USB_STATE_UP)
261 return -EIO;
262
263 if (test_and_set_bit(0, &devinfo->ctl_op))
264 return -EIO;
265
266 devinfo->ctl_completed = false;
267 err = brcmf_usb_send_ctl(devinfo, buf, len);
268 if (err) {
269 brcmf_err("fail %d bytes: %d\n", err, len);
270 clear_bit(0, &devinfo->ctl_op);
271 return err;
272 }
273 timeout = brcmf_usb_ioctl_resp_wait(devinfo);
274 clear_bit(0, &devinfo->ctl_op);
275 if (!timeout) {
276 brcmf_err("Txctl wait timed out\n");
277 err = -EIO;
278 }
279 return err;
280}
281
282static int brcmf_usb_rx_ctlpkt(struct device *dev, u8 *buf, u32 len)
283{
284 int err = 0;
285 int timeout = 0;
286 struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(dev);
287
288 brcmf_dbg(USB, "Enter\n");
289 if (devinfo->bus_pub.state != BRCMFMAC_USB_STATE_UP)
290 return -EIO;
291
292 if (test_and_set_bit(0, &devinfo->ctl_op))
293 return -EIO;
294
295 devinfo->ctl_completed = false;
296 err = brcmf_usb_recv_ctl(devinfo, buf, len);
297 if (err) {
298 brcmf_err("fail %d bytes: %d\n", err, len);
299 clear_bit(0, &devinfo->ctl_op);
300 return err;
301 }
302 timeout = brcmf_usb_ioctl_resp_wait(devinfo);
303 err = devinfo->ctl_urb_status;
304 clear_bit(0, &devinfo->ctl_op);
305 if (!timeout) {
306 brcmf_err("rxctl wait timed out\n");
307 err = -EIO;
308 }
309 if (!err)
310 return devinfo->ctl_urb_actual_length;
311 else
312 return err;
313}
314
315static struct brcmf_usbreq *brcmf_usb_deq(struct brcmf_usbdev_info *devinfo,
316 struct list_head *q, int *counter)
317{
318 unsigned long flags;
319 struct brcmf_usbreq *req;
320 spin_lock_irqsave(&devinfo->qlock, flags);
321 if (list_empty(q)) {
322 spin_unlock_irqrestore(&devinfo->qlock, flags);
323 return NULL;
324 }
325 req = list_entry(q->next, struct brcmf_usbreq, list);
326 list_del_init(q->next);
327 if (counter)
328 (*counter)--;
329 spin_unlock_irqrestore(&devinfo->qlock, flags);
330 return req;
331
332}
333
334static void brcmf_usb_enq(struct brcmf_usbdev_info *devinfo,
335 struct list_head *q, struct brcmf_usbreq *req,
336 int *counter)
337{
338 unsigned long flags;
339 spin_lock_irqsave(&devinfo->qlock, flags);
340 list_add_tail(&req->list, q);
341 if (counter)
342 (*counter)++;
343 spin_unlock_irqrestore(&devinfo->qlock, flags);
344}
345
346static struct brcmf_usbreq *
347brcmf_usbdev_qinit(struct list_head *q, int qsize)
348{
349 int i;
350 struct brcmf_usbreq *req, *reqs;
351
352 reqs = kcalloc(qsize, sizeof(struct brcmf_usbreq), GFP_ATOMIC);
353 if (reqs == NULL)
354 return NULL;
355
356 req = reqs;
357
358 for (i = 0; i < qsize; i++) {
359 req->urb = usb_alloc_urb(0, GFP_ATOMIC);
360 if (!req->urb)
361 goto fail;
362
363 INIT_LIST_HEAD(&req->list);
364 list_add_tail(&req->list, q);
365 req++;
366 }
367 return reqs;
368fail:
369 brcmf_err("fail!\n");
370 while (!list_empty(q)) {
371 req = list_entry(q->next, struct brcmf_usbreq, list);
372 if (req && req->urb)
373 usb_free_urb(req->urb);
374 list_del(q->next);
375 }
376 return NULL;
377
378}
379
380static void brcmf_usb_free_q(struct list_head *q, bool pending)
381{
382 struct brcmf_usbreq *req, *next;
383 int i = 0;
384 list_for_each_entry_safe(req, next, q, list) {
385 if (!req->urb) {
386 brcmf_err("bad req\n");
387 break;
388 }
389 i++;
390 if (pending) {
391 usb_kill_urb(req->urb);
392 } else {
393 usb_free_urb(req->urb);
394 list_del_init(&req->list);
395 }
396 }
397}
398
399static void brcmf_usb_del_fromq(struct brcmf_usbdev_info *devinfo,
400 struct brcmf_usbreq *req)
401{
402 unsigned long flags;
403
404 spin_lock_irqsave(&devinfo->qlock, flags);
405 list_del_init(&req->list);
406 spin_unlock_irqrestore(&devinfo->qlock, flags);
407}
408
409
410static void brcmf_usb_tx_complete(struct urb *urb)
411{
412 struct brcmf_usbreq *req = (struct brcmf_usbreq *)urb->context;
413 struct brcmf_usbdev_info *devinfo = req->devinfo;
414
415 brcmf_dbg(USB, "Enter, urb->status=%d, skb=%p\n", urb->status,
416 req->skb);
417 brcmf_usb_del_fromq(devinfo, req);
418
419 brcmf_txcomplete(devinfo->dev, req->skb, urb->status == 0);
420 req->skb = NULL;
421 brcmf_usb_enq(devinfo, &devinfo->tx_freeq, req, &devinfo->tx_freecount);
422 if (devinfo->tx_freecount > devinfo->tx_high_watermark &&
423 devinfo->tx_flowblock) {
424 brcmf_txflowblock(devinfo->dev, false);
425 devinfo->tx_flowblock = false;
426 }
427}
428
429static void brcmf_usb_rx_complete(struct urb *urb)
430{
431 struct brcmf_usbreq *req = (struct brcmf_usbreq *)urb->context;
432 struct brcmf_usbdev_info *devinfo = req->devinfo;
433 struct sk_buff *skb;
434 struct sk_buff_head skbq;
435
436 brcmf_dbg(USB, "Enter, urb->status=%d\n", urb->status);
437 brcmf_usb_del_fromq(devinfo, req);
438 skb = req->skb;
439 req->skb = NULL;
440
441
442 if (urb->status != 0 || !urb->actual_length) {
443 brcmu_pkt_buf_free_skb(skb);
444 brcmf_usb_enq(devinfo, &devinfo->rx_freeq, req, NULL);
445 return;
446 }
447
448 if (devinfo->bus_pub.state == BRCMFMAC_USB_STATE_UP) {
449 skb_queue_head_init(&skbq);
450 skb_queue_tail(&skbq, skb);
451 skb_put(skb, urb->actual_length);
452 brcmf_rx_frames(devinfo->dev, &skbq);
453 brcmf_usb_rx_refill(devinfo, req);
454 } else {
455 brcmu_pkt_buf_free_skb(skb);
456 brcmf_usb_enq(devinfo, &devinfo->rx_freeq, req, NULL);
457 }
458 return;
459
460}
461
462static void brcmf_usb_rx_refill(struct brcmf_usbdev_info *devinfo,
463 struct brcmf_usbreq *req)
464{
465 struct sk_buff *skb;
466 int ret;
467
468 if (!req || !devinfo)
469 return;
470
471 skb = dev_alloc_skb(devinfo->bus_pub.bus_mtu);
472 if (!skb) {
473 brcmf_usb_enq(devinfo, &devinfo->rx_freeq, req, NULL);
474 return;
475 }
476 req->skb = skb;
477
478 usb_fill_bulk_urb(req->urb, devinfo->usbdev, devinfo->rx_pipe,
479 skb->data, skb_tailroom(skb), brcmf_usb_rx_complete,
480 req);
481 req->devinfo = devinfo;
482 brcmf_usb_enq(devinfo, &devinfo->rx_postq, req, NULL);
483
484 ret = usb_submit_urb(req->urb, GFP_ATOMIC);
485 if (ret) {
486 brcmf_usb_del_fromq(devinfo, req);
487 brcmu_pkt_buf_free_skb(req->skb);
488 req->skb = NULL;
489 brcmf_usb_enq(devinfo, &devinfo->rx_freeq, req, NULL);
490 }
491 return;
492}
493
494static void brcmf_usb_rx_fill_all(struct brcmf_usbdev_info *devinfo)
495{
496 struct brcmf_usbreq *req;
497
498 if (devinfo->bus_pub.state != BRCMFMAC_USB_STATE_UP) {
499 brcmf_err("bus is not up=%d\n", devinfo->bus_pub.state);
500 return;
501 }
502 while ((req = brcmf_usb_deq(devinfo, &devinfo->rx_freeq, NULL)) != NULL)
503 brcmf_usb_rx_refill(devinfo, req);
504}
505
506static void
507brcmf_usb_state_change(struct brcmf_usbdev_info *devinfo, int state)
508{
509 struct brcmf_bus *bcmf_bus = devinfo->bus_pub.bus;
510 int old_state;
511
512 brcmf_dbg(USB, "Enter, current state=%d, new state=%d\n",
513 devinfo->bus_pub.state, state);
514
515 if (devinfo->bus_pub.state == state)
516 return;
517
518 old_state = devinfo->bus_pub.state;
519 devinfo->bus_pub.state = state;
520
521
522 if (state == BRCMFMAC_USB_STATE_DOWN) {
523 brcmf_dbg(USB, "DBUS is down\n");
524 bcmf_bus->state = BRCMF_BUS_DOWN;
525 } else if (state == BRCMFMAC_USB_STATE_UP) {
526 brcmf_dbg(USB, "DBUS is up\n");
527 bcmf_bus->state = BRCMF_BUS_DATA;
528 } else {
529 brcmf_dbg(USB, "DBUS current state=%d\n", state);
530 }
531}
532
533static void
534brcmf_usb_intr_complete(struct urb *urb)
535{
536 struct brcmf_usbdev_info *devinfo =
537 (struct brcmf_usbdev_info *)urb->context;
538 int err;
539
540 brcmf_dbg(USB, "Enter, urb->status=%d\n", urb->status);
541
542 if (devinfo == NULL)
543 return;
544
545 if (unlikely(urb->status)) {
546 if (urb->status == -ENOENT ||
547 urb->status == -ESHUTDOWN ||
548 urb->status == -ENODEV) {
549 brcmf_usb_state_change(devinfo,
550 BRCMFMAC_USB_STATE_DOWN);
551 }
552 }
553
554 if (devinfo->bus_pub.state == BRCMFMAC_USB_STATE_DOWN) {
555 brcmf_err("intr cb when DBUS down, ignoring\n");
556 return;
557 }
558
559 if (devinfo->bus_pub.state == BRCMFMAC_USB_STATE_UP) {
560 err = usb_submit_urb(devinfo->intr_urb, GFP_ATOMIC);
561 if (err)
562 brcmf_err("usb_submit_urb, err=%d\n", err);
563 }
564}
565
566static int brcmf_usb_tx(struct device *dev, struct sk_buff *skb)
567{
568 struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(dev);
569 struct brcmf_usbreq *req;
570 int ret;
571
572 brcmf_dbg(USB, "Enter, skb=%p\n", skb);
573 if (devinfo->bus_pub.state != BRCMFMAC_USB_STATE_UP) {
574 ret = -EIO;
575 goto fail;
576 }
577
578 req = brcmf_usb_deq(devinfo, &devinfo->tx_freeq,
579 &devinfo->tx_freecount);
580 if (!req) {
581 brcmf_err("no req to send\n");
582 ret = -ENOMEM;
583 goto fail;
584 }
585
586 req->skb = skb;
587 req->devinfo = devinfo;
588 usb_fill_bulk_urb(req->urb, devinfo->usbdev, devinfo->tx_pipe,
589 skb->data, skb->len, brcmf_usb_tx_complete, req);
590 req->urb->transfer_flags |= URB_ZERO_PACKET;
591 brcmf_usb_enq(devinfo, &devinfo->tx_postq, req, NULL);
592 ret = usb_submit_urb(req->urb, GFP_ATOMIC);
593 if (ret) {
594 brcmf_err("brcmf_usb_tx usb_submit_urb FAILED\n");
595 brcmf_usb_del_fromq(devinfo, req);
596 req->skb = NULL;
597 brcmf_usb_enq(devinfo, &devinfo->tx_freeq, req,
598 &devinfo->tx_freecount);
599 goto fail;
600 }
601
602 if (devinfo->tx_freecount < devinfo->tx_low_watermark &&
603 !devinfo->tx_flowblock) {
604 brcmf_txflowblock(dev, true);
605 devinfo->tx_flowblock = true;
606 }
607 return 0;
608
609fail:
610 brcmf_txcomplete(dev, skb, false);
611 return ret;
612}
613
614
615static int brcmf_usb_up(struct device *dev)
616{
617 struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(dev);
618 u16 ifnum;
619 int ret;
620
621 brcmf_dbg(USB, "Enter\n");
622 if (devinfo->bus_pub.state == BRCMFMAC_USB_STATE_UP)
623 return 0;
624
625
626 brcmf_usb_state_change(devinfo, BRCMFMAC_USB_STATE_UP);
627
628 if (devinfo->intr_urb) {
629 usb_fill_int_urb(devinfo->intr_urb, devinfo->usbdev,
630 devinfo->intr_pipe,
631 &devinfo->intr,
632 devinfo->intr_size,
633 (usb_complete_t)brcmf_usb_intr_complete,
634 devinfo,
635 devinfo->interval);
636
637 ret = usb_submit_urb(devinfo->intr_urb, GFP_ATOMIC);
638 if (ret) {
639 brcmf_err("USB_SUBMIT_URB failed with status %d\n",
640 ret);
641 return -EINVAL;
642 }
643 }
644
645 if (devinfo->ctl_urb) {
646 devinfo->ctl_in_pipe = usb_rcvctrlpipe(devinfo->usbdev, 0);
647 devinfo->ctl_out_pipe = usb_sndctrlpipe(devinfo->usbdev, 0);
648
649 ifnum = IFDESC(devinfo->usbdev, CONTROL_IF).bInterfaceNumber;
650
651
652 devinfo->ctl_write.bRequestType =
653 USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE;
654 devinfo->ctl_write.bRequest = 0;
655 devinfo->ctl_write.wValue = cpu_to_le16(0);
656 devinfo->ctl_write.wIndex = cpu_to_le16p(&ifnum);
657
658
659 devinfo->ctl_read.bRequestType =
660 USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE;
661 devinfo->ctl_read.bRequest = 1;
662 devinfo->ctl_read.wValue = cpu_to_le16(0);
663 devinfo->ctl_read.wIndex = cpu_to_le16p(&ifnum);
664 }
665 brcmf_usb_rx_fill_all(devinfo);
666 return 0;
667}
668
669static void brcmf_usb_down(struct device *dev)
670{
671 struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(dev);
672
673 brcmf_dbg(USB, "Enter\n");
674 if (devinfo == NULL)
675 return;
676
677 if (devinfo->bus_pub.state == BRCMFMAC_USB_STATE_DOWN)
678 return;
679
680 brcmf_usb_state_change(devinfo, BRCMFMAC_USB_STATE_DOWN);
681 if (devinfo->intr_urb)
682 usb_kill_urb(devinfo->intr_urb);
683
684 if (devinfo->ctl_urb)
685 usb_kill_urb(devinfo->ctl_urb);
686
687 if (devinfo->bulk_urb)
688 usb_kill_urb(devinfo->bulk_urb);
689 brcmf_usb_free_q(&devinfo->tx_postq, true);
690
691 brcmf_usb_free_q(&devinfo->rx_postq, true);
692}
693
694static void
695brcmf_usb_sync_complete(struct urb *urb)
696{
697 struct brcmf_usbdev_info *devinfo =
698 (struct brcmf_usbdev_info *)urb->context;
699
700 devinfo->ctl_completed = true;
701 brcmf_usb_ioctl_resp_wake(devinfo);
702}
703
704static bool brcmf_usb_dl_cmd(struct brcmf_usbdev_info *devinfo, u8 cmd,
705 void *buffer, int buflen)
706{
707 int ret = 0;
708 char *tmpbuf;
709 u16 size;
710
711 if ((!devinfo) || (devinfo->ctl_urb == NULL))
712 return false;
713
714 tmpbuf = kmalloc(buflen, GFP_ATOMIC);
715 if (!tmpbuf)
716 return false;
717
718 size = buflen;
719 devinfo->ctl_urb->transfer_buffer_length = size;
720
721 devinfo->ctl_read.wLength = cpu_to_le16p(&size);
722 devinfo->ctl_read.bRequestType = USB_DIR_IN | USB_TYPE_VENDOR |
723 USB_RECIP_INTERFACE;
724 devinfo->ctl_read.bRequest = cmd;
725
726 usb_fill_control_urb(devinfo->ctl_urb,
727 devinfo->usbdev,
728 usb_rcvctrlpipe(devinfo->usbdev, 0),
729 (unsigned char *) &devinfo->ctl_read,
730 (void *) tmpbuf, size,
731 (usb_complete_t)brcmf_usb_sync_complete, devinfo);
732
733 devinfo->ctl_completed = false;
734 ret = usb_submit_urb(devinfo->ctl_urb, GFP_ATOMIC);
735 if (ret < 0) {
736 brcmf_err("usb_submit_urb failed %d\n", ret);
737 kfree(tmpbuf);
738 return false;
739 }
740
741 ret = brcmf_usb_ioctl_resp_wait(devinfo);
742 memcpy(buffer, tmpbuf, buflen);
743 kfree(tmpbuf);
744
745 return ret;
746}
747
748static bool
749brcmf_usb_dlneeded(struct brcmf_usbdev_info *devinfo)
750{
751 struct bootrom_id_le id;
752 u32 chipid, chiprev;
753
754 brcmf_dbg(USB, "Enter\n");
755
756 if (devinfo == NULL)
757 return false;
758
759
760 id.chip = cpu_to_le32(0xDEAD);
761 brcmf_usb_dl_cmd(devinfo, DL_GETVER, &id, sizeof(id));
762
763 chipid = le32_to_cpu(id.chip);
764 chiprev = le32_to_cpu(id.chiprev);
765
766 if ((chipid & 0x4300) == 0x4300)
767 brcmf_dbg(USB, "chip %x rev 0x%x\n", chipid, chiprev);
768 else
769 brcmf_dbg(USB, "chip %d rev 0x%x\n", chipid, chiprev);
770 if (chipid == BRCMF_POSTBOOT_ID) {
771 brcmf_dbg(USB, "firmware already downloaded\n");
772 brcmf_usb_dl_cmd(devinfo, DL_RESETCFG, &id, sizeof(id));
773 return false;
774 } else {
775 devinfo->bus_pub.devid = chipid;
776 devinfo->bus_pub.chiprev = chiprev;
777 }
778 return true;
779}
780
781static int
782brcmf_usb_resetcfg(struct brcmf_usbdev_info *devinfo)
783{
784 struct bootrom_id_le id;
785 u32 loop_cnt;
786
787 brcmf_dbg(USB, "Enter\n");
788
789 loop_cnt = 0;
790 do {
791 mdelay(BRCMF_USB_RESET_GETVER_SPINWAIT);
792 loop_cnt++;
793 id.chip = cpu_to_le32(0xDEAD);
794 brcmf_usb_dl_cmd(devinfo, DL_GETVER, &id, sizeof(id));
795 if (id.chip == cpu_to_le32(BRCMF_POSTBOOT_ID))
796 break;
797 } while (loop_cnt < BRCMF_USB_RESET_GETVER_LOOP_CNT);
798
799 if (id.chip == cpu_to_le32(BRCMF_POSTBOOT_ID)) {
800 brcmf_dbg(USB, "postboot chip 0x%x/rev 0x%x\n",
801 le32_to_cpu(id.chip), le32_to_cpu(id.chiprev));
802
803 brcmf_usb_dl_cmd(devinfo, DL_RESETCFG, &id, sizeof(id));
804 return 0;
805 } else {
806 brcmf_err("Cannot talk to Dongle. Firmware is not UP, %d ms\n",
807 BRCMF_USB_RESET_GETVER_SPINWAIT * loop_cnt);
808 return -EINVAL;
809 }
810}
811
812
813static int
814brcmf_usb_dl_send_bulk(struct brcmf_usbdev_info *devinfo, void *buffer, int len)
815{
816 int ret;
817
818 if ((devinfo == NULL) || (devinfo->bulk_urb == NULL))
819 return -EINVAL;
820
821
822 usb_fill_bulk_urb(devinfo->bulk_urb, devinfo->usbdev,
823 devinfo->tx_pipe, buffer, len,
824 (usb_complete_t)brcmf_usb_sync_complete, devinfo);
825
826 devinfo->bulk_urb->transfer_flags |= URB_ZERO_PACKET;
827
828 devinfo->ctl_completed = false;
829 ret = usb_submit_urb(devinfo->bulk_urb, GFP_ATOMIC);
830 if (ret) {
831 brcmf_err("usb_submit_urb failed %d\n", ret);
832 return ret;
833 }
834 ret = brcmf_usb_ioctl_resp_wait(devinfo);
835 return (ret == 0);
836}
837
838static int
839brcmf_usb_dl_writeimage(struct brcmf_usbdev_info *devinfo, u8 *fw, int fwlen)
840{
841 unsigned int sendlen, sent, dllen;
842 char *bulkchunk = NULL, *dlpos;
843 struct rdl_state_le state;
844 u32 rdlstate, rdlbytes;
845 int err = 0;
846
847 brcmf_dbg(USB, "Enter, fw %p, len %d\n", fw, fwlen);
848
849 bulkchunk = kmalloc(RDL_CHUNK, GFP_ATOMIC);
850 if (bulkchunk == NULL) {
851 err = -ENOMEM;
852 goto fail;
853 }
854
855
856 brcmf_usb_dl_cmd(devinfo, DL_START, &state,
857 sizeof(struct rdl_state_le));
858
859 rdlstate = le32_to_cpu(state.state);
860 rdlbytes = le32_to_cpu(state.bytes);
861
862
863 if (rdlstate != DL_WAITING) {
864 brcmf_err("Failed to DL_START\n");
865 err = -EINVAL;
866 goto fail;
867 }
868 sent = 0;
869 dlpos = fw;
870 dllen = fwlen;
871
872
873 while (rdlbytes != dllen) {
874
875
876 if ((rdlbytes == sent) && (rdlbytes != dllen)) {
877 if ((dllen-sent) < RDL_CHUNK)
878 sendlen = dllen-sent;
879 else
880 sendlen = RDL_CHUNK;
881
882
883
884
885
886 if (!(sendlen % 64))
887 sendlen -= 4;
888
889
890 memcpy(bulkchunk, dlpos, sendlen);
891 if (brcmf_usb_dl_send_bulk(devinfo, bulkchunk,
892 sendlen)) {
893 brcmf_err("send_bulk failed\n");
894 err = -EINVAL;
895 goto fail;
896 }
897
898 dlpos += sendlen;
899 sent += sendlen;
900 }
901 if (!brcmf_usb_dl_cmd(devinfo, DL_GETSTATE, &state,
902 sizeof(struct rdl_state_le))) {
903 brcmf_err("DL_GETSTATE Failed xxxx\n");
904 err = -EINVAL;
905 goto fail;
906 }
907
908 rdlstate = le32_to_cpu(state.state);
909 rdlbytes = le32_to_cpu(state.bytes);
910
911
912 if (rdlstate == DL_BAD_HDR || rdlstate == DL_BAD_CRC) {
913 brcmf_err("Bad Hdr or Bad CRC state %d\n",
914 rdlstate);
915 err = -EINVAL;
916 goto fail;
917 }
918 }
919
920fail:
921 kfree(bulkchunk);
922 brcmf_dbg(USB, "Exit, err=%d\n", err);
923 return err;
924}
925
926static int brcmf_usb_dlstart(struct brcmf_usbdev_info *devinfo, u8 *fw, int len)
927{
928 int err;
929
930 brcmf_dbg(USB, "Enter\n");
931
932 if (devinfo == NULL)
933 return -EINVAL;
934
935 if (devinfo->bus_pub.devid == 0xDEAD)
936 return -EINVAL;
937
938 err = brcmf_usb_dl_writeimage(devinfo, fw, len);
939 if (err == 0)
940 devinfo->bus_pub.state = BRCMFMAC_USB_STATE_DL_DONE;
941 else
942 devinfo->bus_pub.state = BRCMFMAC_USB_STATE_DL_FAIL;
943 brcmf_dbg(USB, "Exit, err=%d\n", err);
944
945 return err;
946}
947
948static int brcmf_usb_dlrun(struct brcmf_usbdev_info *devinfo)
949{
950 struct rdl_state_le state;
951
952 brcmf_dbg(USB, "Enter\n");
953 if (!devinfo)
954 return -EINVAL;
955
956 if (devinfo->bus_pub.devid == 0xDEAD)
957 return -EINVAL;
958
959
960 brcmf_usb_dl_cmd(devinfo, DL_GETSTATE, &state,
961 sizeof(struct rdl_state_le));
962
963
964 if (state.state == cpu_to_le32(DL_RUNNABLE)) {
965 if (!brcmf_usb_dl_cmd(devinfo, DL_GO, &state,
966 sizeof(struct rdl_state_le)))
967 return -ENODEV;
968 if (brcmf_usb_resetcfg(devinfo))
969 return -ENODEV;
970
971 } else {
972 brcmf_err("Dongle not runnable\n");
973 return -EINVAL;
974 }
975 brcmf_dbg(USB, "Exit\n");
976 return 0;
977}
978
979static bool brcmf_usb_chip_support(int chipid, int chiprev)
980{
981 switch(chipid) {
982 case 43143:
983 return true;
984 case 43235:
985 case 43236:
986 case 43238:
987 return (chiprev == 3);
988 case 43242:
989 return true;
990 default:
991 break;
992 }
993 return false;
994}
995
996static int
997brcmf_usb_fw_download(struct brcmf_usbdev_info *devinfo)
998{
999 int devid, chiprev;
1000 int err;
1001
1002 brcmf_dbg(USB, "Enter\n");
1003 if (devinfo == NULL)
1004 return -ENODEV;
1005
1006 devid = devinfo->bus_pub.devid;
1007 chiprev = devinfo->bus_pub.chiprev;
1008
1009 if (!brcmf_usb_chip_support(devid, chiprev)) {
1010 brcmf_err("unsupported chip %d rev %d\n",
1011 devid, chiprev);
1012 return -EINVAL;
1013 }
1014
1015 if (!devinfo->image) {
1016 brcmf_err("No firmware!\n");
1017 return -ENOENT;
1018 }
1019
1020 err = brcmf_usb_dlstart(devinfo,
1021 devinfo->image, devinfo->image_len);
1022 if (err == 0)
1023 err = brcmf_usb_dlrun(devinfo);
1024 return err;
1025}
1026
1027
1028static void brcmf_usb_detach(struct brcmf_usbdev_info *devinfo)
1029{
1030 brcmf_dbg(USB, "Enter, devinfo %p\n", devinfo);
1031
1032
1033 brcmf_usb_free_q(&devinfo->rx_freeq, false);
1034 brcmf_usb_free_q(&devinfo->tx_freeq, false);
1035
1036 usb_free_urb(devinfo->intr_urb);
1037 usb_free_urb(devinfo->ctl_urb);
1038 usb_free_urb(devinfo->bulk_urb);
1039
1040 kfree(devinfo->tx_reqs);
1041 kfree(devinfo->rx_reqs);
1042}
1043
1044#define TRX_MAGIC 0x30524448
1045#define TRX_VERSION 1
1046#define TRX_MAX_LEN 0x3B0000
1047#define TRX_NO_HEADER 1
1048#define TRX_MAX_OFFSET 3
1049#define TRX_UNCOMP_IMAGE 0x20
1050
1051struct trx_header_le {
1052 __le32 magic;
1053 __le32 len;
1054 __le32 crc32;
1055 __le32 flag_version;
1056 __le32 offsets[TRX_MAX_OFFSET];
1057
1058};
1059
1060static int check_file(const u8 *headers)
1061{
1062 struct trx_header_le *trx;
1063 int actual_len = -1;
1064
1065 brcmf_dbg(USB, "Enter\n");
1066
1067 trx = (struct trx_header_le *) headers;
1068 if (trx->magic != cpu_to_le32(TRX_MAGIC))
1069 return -1;
1070
1071 headers += sizeof(struct trx_header_le);
1072
1073 if (le32_to_cpu(trx->flag_version) & TRX_UNCOMP_IMAGE) {
1074 actual_len = le32_to_cpu(trx->offsets[TRX_OFFSETS_DLFWLEN_IDX]);
1075 return actual_len + sizeof(struct trx_header_le);
1076 }
1077 return -1;
1078}
1079
1080static int brcmf_usb_get_fw(struct brcmf_usbdev_info *devinfo)
1081{
1082 s8 *fwname;
1083 const struct firmware *fw;
1084 struct brcmf_usb_image *fw_image;
1085 int err;
1086
1087 brcmf_dbg(USB, "Enter\n");
1088 switch (devinfo->bus_pub.devid) {
1089 case 43143:
1090 fwname = BRCMF_USB_43143_FW_NAME;
1091 break;
1092 case 43235:
1093 case 43236:
1094 case 43238:
1095 fwname = BRCMF_USB_43236_FW_NAME;
1096 break;
1097 case 43242:
1098 fwname = BRCMF_USB_43242_FW_NAME;
1099 break;
1100 default:
1101 return -EINVAL;
1102 break;
1103 }
1104 brcmf_dbg(USB, "Loading FW %s\n", fwname);
1105 list_for_each_entry(fw_image, &fw_image_list, list) {
1106 if (fw_image->fwname == fwname) {
1107 devinfo->image = fw_image->image;
1108 devinfo->image_len = fw_image->image_len;
1109 return 0;
1110 }
1111 }
1112
1113 err = request_firmware(&fw, fwname, devinfo->dev);
1114 if (!fw) {
1115 brcmf_err("fail to request firmware %s\n", fwname);
1116 return err;
1117 }
1118 if (check_file(fw->data) < 0) {
1119 brcmf_err("invalid firmware %s\n", fwname);
1120 return -EINVAL;
1121 }
1122
1123 fw_image = kzalloc(sizeof(*fw_image), GFP_ATOMIC);
1124 if (!fw_image)
1125 return -ENOMEM;
1126 INIT_LIST_HEAD(&fw_image->list);
1127 list_add_tail(&fw_image->list, &fw_image_list);
1128 fw_image->fwname = fwname;
1129 fw_image->image = vmalloc(fw->size);
1130 if (!fw_image->image)
1131 return -ENOMEM;
1132
1133 memcpy(fw_image->image, fw->data, fw->size);
1134 fw_image->image_len = fw->size;
1135
1136 release_firmware(fw);
1137
1138 devinfo->image = fw_image->image;
1139 devinfo->image_len = fw_image->image_len;
1140
1141 return 0;
1142}
1143
1144
1145static
1146struct brcmf_usbdev *brcmf_usb_attach(struct brcmf_usbdev_info *devinfo,
1147 int nrxq, int ntxq)
1148{
1149 brcmf_dbg(USB, "Enter\n");
1150
1151 devinfo->bus_pub.nrxq = nrxq;
1152 devinfo->rx_low_watermark = nrxq / 2;
1153 devinfo->bus_pub.devinfo = devinfo;
1154 devinfo->bus_pub.ntxq = ntxq;
1155 devinfo->bus_pub.state = BRCMFMAC_USB_STATE_DOWN;
1156
1157
1158 devinfo->tx_low_watermark = ntxq / 4;
1159 devinfo->tx_high_watermark = devinfo->tx_low_watermark * 3;
1160 devinfo->bus_pub.bus_mtu = BRCMF_USB_MAX_PKT_SIZE;
1161
1162
1163 init_waitqueue_head(&devinfo->ioctl_resp_wait);
1164
1165
1166 spin_lock_init(&devinfo->qlock);
1167
1168 INIT_LIST_HEAD(&devinfo->rx_freeq);
1169 INIT_LIST_HEAD(&devinfo->rx_postq);
1170
1171 INIT_LIST_HEAD(&devinfo->tx_freeq);
1172 INIT_LIST_HEAD(&devinfo->tx_postq);
1173
1174 devinfo->tx_flowblock = false;
1175
1176 devinfo->rx_reqs = brcmf_usbdev_qinit(&devinfo->rx_freeq, nrxq);
1177 if (!devinfo->rx_reqs)
1178 goto error;
1179
1180 devinfo->tx_reqs = brcmf_usbdev_qinit(&devinfo->tx_freeq, ntxq);
1181 if (!devinfo->tx_reqs)
1182 goto error;
1183 devinfo->tx_freecount = ntxq;
1184
1185 devinfo->intr_urb = usb_alloc_urb(0, GFP_ATOMIC);
1186 if (!devinfo->intr_urb) {
1187 brcmf_err("usb_alloc_urb (intr) failed\n");
1188 goto error;
1189 }
1190 devinfo->ctl_urb = usb_alloc_urb(0, GFP_ATOMIC);
1191 if (!devinfo->ctl_urb) {
1192 brcmf_err("usb_alloc_urb (ctl) failed\n");
1193 goto error;
1194 }
1195 devinfo->bulk_urb = usb_alloc_urb(0, GFP_ATOMIC);
1196 if (!devinfo->bulk_urb) {
1197 brcmf_err("usb_alloc_urb (bulk) failed\n");
1198 goto error;
1199 }
1200
1201 if (!brcmf_usb_dlneeded(devinfo))
1202 return &devinfo->bus_pub;
1203
1204 brcmf_dbg(USB, "Start fw downloading\n");
1205 if (brcmf_usb_get_fw(devinfo))
1206 goto error;
1207
1208 if (brcmf_usb_fw_download(devinfo))
1209 goto error;
1210
1211 return &devinfo->bus_pub;
1212
1213error:
1214 brcmf_err("failed!\n");
1215 brcmf_usb_detach(devinfo);
1216 return NULL;
1217}
1218
1219static struct brcmf_bus_ops brcmf_usb_bus_ops = {
1220 .txdata = brcmf_usb_tx,
1221 .init = brcmf_usb_up,
1222 .stop = brcmf_usb_down,
1223 .txctl = brcmf_usb_tx_ctlpkt,
1224 .rxctl = brcmf_usb_rx_ctlpkt,
1225};
1226
1227static int brcmf_usb_probe_cb(struct brcmf_usbdev_info *devinfo)
1228{
1229 struct brcmf_bus *bus = NULL;
1230 struct brcmf_usbdev *bus_pub = NULL;
1231 int ret;
1232 struct device *dev = devinfo->dev;
1233
1234 brcmf_dbg(USB, "Enter\n");
1235 bus_pub = brcmf_usb_attach(devinfo, BRCMF_USB_NRXQ, BRCMF_USB_NTXQ);
1236 if (!bus_pub)
1237 return -ENODEV;
1238
1239 bus = kzalloc(sizeof(struct brcmf_bus), GFP_ATOMIC);
1240 if (!bus) {
1241 ret = -ENOMEM;
1242 goto fail;
1243 }
1244
1245 bus->dev = dev;
1246 bus_pub->bus = bus;
1247 bus->bus_priv.usb = bus_pub;
1248 dev_set_drvdata(dev, bus);
1249 bus->ops = &brcmf_usb_bus_ops;
1250 bus->chip = bus_pub->devid;
1251 bus->chiprev = bus_pub->chiprev;
1252
1253
1254 ret = brcmf_attach(0, dev);
1255 if (ret) {
1256 brcmf_err("brcmf_attach failed\n");
1257 goto fail;
1258 }
1259
1260 ret = brcmf_bus_start(dev);
1261 if (ret) {
1262 brcmf_err("dongle is not responding\n");
1263 brcmf_detach(dev);
1264 goto fail;
1265 }
1266
1267 return 0;
1268fail:
1269
1270 kfree(bus);
1271 brcmf_usb_detach(devinfo);
1272 return ret;
1273}
1274
1275static void
1276brcmf_usb_disconnect_cb(struct brcmf_usbdev_info *devinfo)
1277{
1278 if (!devinfo)
1279 return;
1280 brcmf_dbg(USB, "Enter, bus_pub %p\n", devinfo);
1281
1282 brcmf_detach(devinfo->dev);
1283 kfree(devinfo->bus_pub.bus);
1284 brcmf_usb_detach(devinfo);
1285}
1286
1287static int
1288brcmf_usb_probe(struct usb_interface *intf, const struct usb_device_id *id)
1289{
1290 int ep;
1291 struct usb_endpoint_descriptor *endpoint;
1292 int ret = 0;
1293 struct usb_device *usb = interface_to_usbdev(intf);
1294 int num_of_eps;
1295 u8 endpoint_num;
1296 struct brcmf_usbdev_info *devinfo;
1297
1298 brcmf_dbg(USB, "Enter\n");
1299
1300 devinfo = kzalloc(sizeof(*devinfo), GFP_ATOMIC);
1301 if (devinfo == NULL)
1302 return -ENOMEM;
1303
1304 devinfo->usbdev = usb;
1305 devinfo->dev = &usb->dev;
1306
1307 usb_set_intfdata(intf, devinfo);
1308
1309
1310 if (usb->descriptor.bNumConfigurations != 1) {
1311 ret = -1;
1312 goto fail;
1313 }
1314
1315 if (usb->descriptor.bDeviceClass != USB_CLASS_VENDOR_SPEC) {
1316 ret = -1;
1317 goto fail;
1318 }
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328 if (CONFIGDESC(usb)->bNumInterfaces != 1) {
1329 ret = -1;
1330 goto fail;
1331 }
1332
1333
1334 if (IFDESC(usb, CONTROL_IF).bInterfaceClass != USB_CLASS_VENDOR_SPEC ||
1335 IFDESC(usb, CONTROL_IF).bInterfaceSubClass != 2 ||
1336 IFDESC(usb, CONTROL_IF).bInterfaceProtocol != 0xff) {
1337 brcmf_err("invalid control interface: class %d, subclass %d, proto %d\n",
1338 IFDESC(usb, CONTROL_IF).bInterfaceClass,
1339 IFDESC(usb, CONTROL_IF).bInterfaceSubClass,
1340 IFDESC(usb, CONTROL_IF).bInterfaceProtocol);
1341 ret = -1;
1342 goto fail;
1343 }
1344
1345
1346 endpoint = &IFEPDESC(usb, CONTROL_IF, 0);
1347 if ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
1348 != USB_ENDPOINT_XFER_INT) {
1349 brcmf_err("invalid control endpoint %d\n",
1350 endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK);
1351 ret = -1;
1352 goto fail;
1353 }
1354
1355 endpoint_num = endpoint->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK;
1356 devinfo->intr_pipe = usb_rcvintpipe(usb, endpoint_num);
1357
1358 devinfo->rx_pipe = 0;
1359 devinfo->rx_pipe2 = 0;
1360 devinfo->tx_pipe = 0;
1361 num_of_eps = IFDESC(usb, BULK_IF).bNumEndpoints - 1;
1362
1363
1364 for (ep = 1; ep <= num_of_eps; ep++) {
1365 endpoint = &IFEPDESC(usb, BULK_IF, ep);
1366 if ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) !=
1367 USB_ENDPOINT_XFER_BULK) {
1368 brcmf_err("invalid data endpoint %d\n", ep);
1369 ret = -1;
1370 goto fail;
1371 }
1372
1373 endpoint_num = endpoint->bEndpointAddress &
1374 USB_ENDPOINT_NUMBER_MASK;
1375 if ((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
1376 == USB_DIR_IN) {
1377 if (!devinfo->rx_pipe) {
1378 devinfo->rx_pipe =
1379 usb_rcvbulkpipe(usb, endpoint_num);
1380 } else {
1381 devinfo->rx_pipe2 =
1382 usb_rcvbulkpipe(usb, endpoint_num);
1383 }
1384 } else {
1385 devinfo->tx_pipe = usb_sndbulkpipe(usb, endpoint_num);
1386 }
1387 }
1388
1389
1390
1391 if (IFEPDESC(usb, CONTROL_IF, 0).wMaxPacketSize == cpu_to_le16(16))
1392 devinfo->intr_size = 8;
1393 else
1394 devinfo->intr_size = 4;
1395
1396 devinfo->interval = IFEPDESC(usb, CONTROL_IF, 0).bInterval;
1397
1398 if (usb->speed == USB_SPEED_HIGH)
1399 brcmf_dbg(USB, "Broadcom high speed USB wireless device detected\n");
1400 else
1401 brcmf_dbg(USB, "Broadcom full speed USB wireless device detected\n");
1402
1403 ret = brcmf_usb_probe_cb(devinfo);
1404 if (ret)
1405 goto fail;
1406
1407
1408 return 0;
1409
1410fail:
1411 brcmf_err("failed with errno %d\n", ret);
1412 kfree(devinfo);
1413 usb_set_intfdata(intf, NULL);
1414 return ret;
1415
1416}
1417
1418static void
1419brcmf_usb_disconnect(struct usb_interface *intf)
1420{
1421 struct brcmf_usbdev_info *devinfo;
1422
1423 brcmf_dbg(USB, "Enter\n");
1424 devinfo = (struct brcmf_usbdev_info *)usb_get_intfdata(intf);
1425 brcmf_usb_disconnect_cb(devinfo);
1426 kfree(devinfo);
1427 brcmf_dbg(USB, "Exit\n");
1428}
1429
1430
1431
1432
1433static int brcmf_usb_suspend(struct usb_interface *intf, pm_message_t state)
1434{
1435 struct usb_device *usb = interface_to_usbdev(intf);
1436 struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(&usb->dev);
1437
1438 brcmf_dbg(USB, "Enter\n");
1439 devinfo->bus_pub.state = BRCMFMAC_USB_STATE_SLEEP;
1440 brcmf_detach(&usb->dev);
1441 return 0;
1442}
1443
1444
1445
1446
1447static int brcmf_usb_resume(struct usb_interface *intf)
1448{
1449 struct usb_device *usb = interface_to_usbdev(intf);
1450 struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(&usb->dev);
1451
1452 brcmf_dbg(USB, "Enter\n");
1453 if (!brcmf_attach(0, devinfo->dev))
1454 return brcmf_bus_start(&usb->dev);
1455
1456 return 0;
1457}
1458
1459static int brcmf_usb_reset_resume(struct usb_interface *intf)
1460{
1461 struct usb_device *usb = interface_to_usbdev(intf);
1462 struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(&usb->dev);
1463
1464 brcmf_dbg(USB, "Enter\n");
1465
1466 if (!brcmf_usb_fw_download(devinfo))
1467 return brcmf_usb_resume(intf);
1468
1469 return -EIO;
1470}
1471
1472#define BRCMF_USB_VENDOR_ID_BROADCOM 0x0a5c
1473#define BRCMF_USB_DEVICE_ID_43143 0xbd1e
1474#define BRCMF_USB_DEVICE_ID_43236 0xbd17
1475#define BRCMF_USB_DEVICE_ID_43242 0xbd1f
1476#define BRCMF_USB_DEVICE_ID_BCMFW 0x0bdc
1477
1478static struct usb_device_id brcmf_usb_devid_table[] = {
1479 { USB_DEVICE(BRCMF_USB_VENDOR_ID_BROADCOM, BRCMF_USB_DEVICE_ID_43143) },
1480 { USB_DEVICE(BRCMF_USB_VENDOR_ID_BROADCOM, BRCMF_USB_DEVICE_ID_43236) },
1481 { USB_DEVICE(BRCMF_USB_VENDOR_ID_BROADCOM, BRCMF_USB_DEVICE_ID_43242) },
1482
1483 { USB_DEVICE(BRCMF_USB_VENDOR_ID_BROADCOM, BRCMF_USB_DEVICE_ID_BCMFW) },
1484 { }
1485};
1486
1487MODULE_DEVICE_TABLE(usb, brcmf_usb_devid_table);
1488MODULE_FIRMWARE(BRCMF_USB_43143_FW_NAME);
1489MODULE_FIRMWARE(BRCMF_USB_43236_FW_NAME);
1490MODULE_FIRMWARE(BRCMF_USB_43242_FW_NAME);
1491
1492static struct usb_driver brcmf_usbdrvr = {
1493 .name = KBUILD_MODNAME,
1494 .probe = brcmf_usb_probe,
1495 .disconnect = brcmf_usb_disconnect,
1496 .id_table = brcmf_usb_devid_table,
1497 .suspend = brcmf_usb_suspend,
1498 .resume = brcmf_usb_resume,
1499 .reset_resume = brcmf_usb_reset_resume,
1500 .supports_autosuspend = 1,
1501 .disable_hub_initiated_lpm = 1,
1502};
1503
1504static void brcmf_release_fw(struct list_head *q)
1505{
1506 struct brcmf_usb_image *fw_image, *next;
1507
1508 list_for_each_entry_safe(fw_image, next, q, list) {
1509 vfree(fw_image->image);
1510 list_del_init(&fw_image->list);
1511 }
1512}
1513
1514static int brcmf_usb_reset_device(struct device *dev, void *notused)
1515{
1516
1517
1518
1519 brcmf_dev_reset(dev->parent);
1520 return 0;
1521}
1522
1523void brcmf_usb_exit(void)
1524{
1525 struct device_driver *drv = &brcmf_usbdrvr.drvwrap.driver;
1526 int ret;
1527
1528 brcmf_dbg(USB, "Enter\n");
1529 ret = driver_for_each_device(drv, NULL, NULL,
1530 brcmf_usb_reset_device);
1531 usb_deregister(&brcmf_usbdrvr);
1532 brcmf_release_fw(&fw_image_list);
1533}
1534
1535void brcmf_usb_init(void)
1536{
1537 brcmf_dbg(USB, "Enter\n");
1538 INIT_LIST_HEAD(&fw_image_list);
1539 usb_register(&brcmf_usbdrvr);
1540}
1541
