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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 <brcm_hw_ids.h>
25#include <brcmu_wifi.h>
26#include "bus.h"
27#include "debug.h"
28#include "firmware.h"
29#include "usb.h"
30#include "core.h"
31#include "common.h"
32#include "bcdc.h"
33
34
35#define IOCTL_RESP_TIMEOUT msecs_to_jiffies(2000)
36
37#define BRCMF_USB_RESET_GETVER_SPINWAIT 100
38#define BRCMF_USB_RESET_GETVER_LOOP_CNT 10
39
40#define BRCMF_POSTBOOT_ID 0xA123
41
42#define BRCMF_USB_NRXQ 50
43#define BRCMF_USB_NTXQ 50
44
45#define BRCMF_USB_CBCTL_WRITE 0
46#define BRCMF_USB_CBCTL_READ 1
47#define BRCMF_USB_MAX_PKT_SIZE 1600
48
49BRCMF_FW_DEF(43143, "brcmfmac43143");
50BRCMF_FW_DEF(43236B, "brcmfmac43236b");
51BRCMF_FW_DEF(43242A, "brcmfmac43242a");
52BRCMF_FW_DEF(43569, "brcmfmac43569");
53BRCMF_FW_DEF(4373, "brcmfmac4373");
54
55static const struct brcmf_firmware_mapping brcmf_usb_fwnames[] = {
56 BRCMF_FW_ENTRY(BRCM_CC_43143_CHIP_ID, 0xFFFFFFFF, 43143),
57 BRCMF_FW_ENTRY(BRCM_CC_43235_CHIP_ID, 0x00000008, 43236B),
58 BRCMF_FW_ENTRY(BRCM_CC_43236_CHIP_ID, 0x00000008, 43236B),
59 BRCMF_FW_ENTRY(BRCM_CC_43238_CHIP_ID, 0x00000008, 43236B),
60 BRCMF_FW_ENTRY(BRCM_CC_43242_CHIP_ID, 0xFFFFFFFF, 43242A),
61 BRCMF_FW_ENTRY(BRCM_CC_43566_CHIP_ID, 0xFFFFFFFF, 43569),
62 BRCMF_FW_ENTRY(BRCM_CC_43569_CHIP_ID, 0xFFFFFFFF, 43569),
63 BRCMF_FW_ENTRY(CY_CC_4373_CHIP_ID, 0xFFFFFFFF, 4373)
64};
65
66#define TRX_MAGIC 0x30524448
67#define TRX_MAX_OFFSET 3
68#define TRX_UNCOMP_IMAGE 0x20
69#define TRX_RDL_CHUNK 1500
70#define TRX_OFFSETS_DLFWLEN_IDX 0
71
72
73#define DL_GETSTATE 0
74#define DL_CHECK_CRC 1
75#define DL_GO 2
76#define DL_START 3
77#define DL_REBOOT 4
78#define DL_GETVER 5
79#define DL_GO_PROTECTED 6
80
81
82
83
84#define DL_EXEC 7
85#define DL_RESETCFG 8
86
87
88#define DL_DEFER_RESP_OK 9
89
90
91
92
93#define DL_WAITING 0
94#define DL_READY 1
95
96
97#define DL_BAD_HDR 2
98#define DL_BAD_CRC 3
99#define DL_RUNNABLE 4
100#define DL_START_FAIL 5
101#define DL_NVRAM_TOOBIG 6
102
103
104#define DL_IMAGE_TOOBIG 7
105
106
107struct trx_header_le {
108 __le32 magic;
109 __le32 len;
110 __le32 crc32;
111 __le32 flag_version;
112 __le32 offsets[TRX_MAX_OFFSET];
113
114
115};
116
117struct rdl_state_le {
118 __le32 state;
119 __le32 bytes;
120};
121
122struct bootrom_id_le {
123 __le32 chip;
124 __le32 chiprev;
125 __le32 ramsize;
126 __le32 remapbase;
127 __le32 boardtype;
128 __le32 boardrev;
129};
130
131struct brcmf_usb_image {
132 struct list_head list;
133 s8 *fwname;
134 u8 *image;
135 int image_len;
136};
137
138struct brcmf_usbdev_info {
139 struct brcmf_usbdev bus_pub;
140 spinlock_t qlock;
141 struct list_head rx_freeq;
142 struct list_head rx_postq;
143 struct list_head tx_freeq;
144 struct list_head tx_postq;
145 uint rx_pipe, tx_pipe;
146
147 int rx_low_watermark;
148 int tx_low_watermark;
149 int tx_high_watermark;
150 int tx_freecount;
151 bool tx_flowblock;
152 spinlock_t tx_flowblock_lock;
153
154 struct brcmf_usbreq *tx_reqs;
155 struct brcmf_usbreq *rx_reqs;
156
157 char fw_name[BRCMF_FW_NAME_LEN];
158 const u8 *image;
159 int image_len;
160
161 struct usb_device *usbdev;
162 struct device *dev;
163 struct completion dev_init_done;
164
165 int ctl_in_pipe, ctl_out_pipe;
166 struct urb *ctl_urb;
167 struct usb_ctrlrequest ctl_write;
168 struct usb_ctrlrequest ctl_read;
169 u32 ctl_urb_actual_length;
170 int ctl_urb_status;
171 int ctl_completed;
172 wait_queue_head_t ioctl_resp_wait;
173 ulong ctl_op;
174 u8 ifnum;
175
176 struct urb *bulk_urb;
177
178 bool wowl_enabled;
179 struct brcmf_mp_device *settings;
180};
181
182static void brcmf_usb_rx_refill(struct brcmf_usbdev_info *devinfo,
183 struct brcmf_usbreq *req);
184
185static struct brcmf_usbdev *brcmf_usb_get_buspub(struct device *dev)
186{
187 struct brcmf_bus *bus_if = dev_get_drvdata(dev);
188 return bus_if->bus_priv.usb;
189}
190
191static struct brcmf_usbdev_info *brcmf_usb_get_businfo(struct device *dev)
192{
193 return brcmf_usb_get_buspub(dev)->devinfo;
194}
195
196static int brcmf_usb_ioctl_resp_wait(struct brcmf_usbdev_info *devinfo)
197{
198 return wait_event_timeout(devinfo->ioctl_resp_wait,
199 devinfo->ctl_completed, IOCTL_RESP_TIMEOUT);
200}
201
202static void brcmf_usb_ioctl_resp_wake(struct brcmf_usbdev_info *devinfo)
203{
204 wake_up(&devinfo->ioctl_resp_wait);
205}
206
207static void
208brcmf_usb_ctl_complete(struct brcmf_usbdev_info *devinfo, int type, int status)
209{
210 brcmf_dbg(USB, "Enter, status=%d\n", status);
211
212 if (unlikely(devinfo == NULL))
213 return;
214
215 if (type == BRCMF_USB_CBCTL_READ) {
216 if (status == 0)
217 devinfo->bus_pub.stats.rx_ctlpkts++;
218 else
219 devinfo->bus_pub.stats.rx_ctlerrs++;
220 } else if (type == BRCMF_USB_CBCTL_WRITE) {
221 if (status == 0)
222 devinfo->bus_pub.stats.tx_ctlpkts++;
223 else
224 devinfo->bus_pub.stats.tx_ctlerrs++;
225 }
226
227 devinfo->ctl_urb_status = status;
228 devinfo->ctl_completed = true;
229 brcmf_usb_ioctl_resp_wake(devinfo);
230}
231
232static void
233brcmf_usb_ctlread_complete(struct urb *urb)
234{
235 struct brcmf_usbdev_info *devinfo =
236 (struct brcmf_usbdev_info *)urb->context;
237
238 brcmf_dbg(USB, "Enter\n");
239 devinfo->ctl_urb_actual_length = urb->actual_length;
240 brcmf_usb_ctl_complete(devinfo, BRCMF_USB_CBCTL_READ,
241 urb->status);
242}
243
244static void
245brcmf_usb_ctlwrite_complete(struct urb *urb)
246{
247 struct brcmf_usbdev_info *devinfo =
248 (struct brcmf_usbdev_info *)urb->context;
249
250 brcmf_dbg(USB, "Enter\n");
251 brcmf_usb_ctl_complete(devinfo, BRCMF_USB_CBCTL_WRITE,
252 urb->status);
253}
254
255static int
256brcmf_usb_send_ctl(struct brcmf_usbdev_info *devinfo, u8 *buf, int len)
257{
258 int ret;
259 u16 size;
260
261 brcmf_dbg(USB, "Enter\n");
262 if (devinfo == NULL || buf == NULL ||
263 len == 0 || devinfo->ctl_urb == NULL)
264 return -EINVAL;
265
266 size = len;
267 devinfo->ctl_write.wLength = cpu_to_le16p(&size);
268 devinfo->ctl_urb->transfer_buffer_length = size;
269 devinfo->ctl_urb_status = 0;
270 devinfo->ctl_urb_actual_length = 0;
271
272 usb_fill_control_urb(devinfo->ctl_urb,
273 devinfo->usbdev,
274 devinfo->ctl_out_pipe,
275 (unsigned char *) &devinfo->ctl_write,
276 buf, size,
277 (usb_complete_t)brcmf_usb_ctlwrite_complete,
278 devinfo);
279
280 ret = usb_submit_urb(devinfo->ctl_urb, GFP_ATOMIC);
281 if (ret < 0)
282 brcmf_err("usb_submit_urb failed %d\n", ret);
283
284 return ret;
285}
286
287static int
288brcmf_usb_recv_ctl(struct brcmf_usbdev_info *devinfo, u8 *buf, int len)
289{
290 int ret;
291 u16 size;
292
293 brcmf_dbg(USB, "Enter\n");
294 if ((devinfo == NULL) || (buf == NULL) || (len == 0)
295 || (devinfo->ctl_urb == NULL))
296 return -EINVAL;
297
298 size = len;
299 devinfo->ctl_read.wLength = cpu_to_le16p(&size);
300 devinfo->ctl_urb->transfer_buffer_length = size;
301
302 devinfo->ctl_read.bRequestType = USB_DIR_IN
303 | USB_TYPE_CLASS | USB_RECIP_INTERFACE;
304 devinfo->ctl_read.bRequest = 1;
305
306 usb_fill_control_urb(devinfo->ctl_urb,
307 devinfo->usbdev,
308 devinfo->ctl_in_pipe,
309 (unsigned char *) &devinfo->ctl_read,
310 buf, size,
311 (usb_complete_t)brcmf_usb_ctlread_complete,
312 devinfo);
313
314 ret = usb_submit_urb(devinfo->ctl_urb, GFP_ATOMIC);
315 if (ret < 0)
316 brcmf_err("usb_submit_urb failed %d\n", ret);
317
318 return ret;
319}
320
321static int brcmf_usb_tx_ctlpkt(struct device *dev, u8 *buf, u32 len)
322{
323 int err = 0;
324 int timeout = 0;
325 struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(dev);
326
327 brcmf_dbg(USB, "Enter\n");
328 if (devinfo->bus_pub.state != BRCMFMAC_USB_STATE_UP)
329 return -EIO;
330
331 if (test_and_set_bit(0, &devinfo->ctl_op))
332 return -EIO;
333
334 devinfo->ctl_completed = false;
335 err = brcmf_usb_send_ctl(devinfo, buf, len);
336 if (err) {
337 brcmf_err("fail %d bytes: %d\n", err, len);
338 clear_bit(0, &devinfo->ctl_op);
339 return err;
340 }
341 timeout = brcmf_usb_ioctl_resp_wait(devinfo);
342 clear_bit(0, &devinfo->ctl_op);
343 if (!timeout) {
344 brcmf_err("Txctl wait timed out\n");
345 err = -EIO;
346 }
347 return err;
348}
349
350static int brcmf_usb_rx_ctlpkt(struct device *dev, u8 *buf, u32 len)
351{
352 int err = 0;
353 int timeout = 0;
354 struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(dev);
355
356 brcmf_dbg(USB, "Enter\n");
357 if (devinfo->bus_pub.state != BRCMFMAC_USB_STATE_UP)
358 return -EIO;
359
360 if (test_and_set_bit(0, &devinfo->ctl_op))
361 return -EIO;
362
363 devinfo->ctl_completed = false;
364 err = brcmf_usb_recv_ctl(devinfo, buf, len);
365 if (err) {
366 brcmf_err("fail %d bytes: %d\n", err, len);
367 clear_bit(0, &devinfo->ctl_op);
368 return err;
369 }
370 timeout = brcmf_usb_ioctl_resp_wait(devinfo);
371 err = devinfo->ctl_urb_status;
372 clear_bit(0, &devinfo->ctl_op);
373 if (!timeout) {
374 brcmf_err("rxctl wait timed out\n");
375 err = -EIO;
376 }
377 if (!err)
378 return devinfo->ctl_urb_actual_length;
379 else
380 return err;
381}
382
383static struct brcmf_usbreq *brcmf_usb_deq(struct brcmf_usbdev_info *devinfo,
384 struct list_head *q, int *counter)
385{
386 unsigned long flags;
387 struct brcmf_usbreq *req;
388 spin_lock_irqsave(&devinfo->qlock, flags);
389 if (list_empty(q)) {
390 spin_unlock_irqrestore(&devinfo->qlock, flags);
391 return NULL;
392 }
393 req = list_entry(q->next, struct brcmf_usbreq, list);
394 list_del_init(q->next);
395 if (counter)
396 (*counter)--;
397 spin_unlock_irqrestore(&devinfo->qlock, flags);
398 return req;
399
400}
401
402static void brcmf_usb_enq(struct brcmf_usbdev_info *devinfo,
403 struct list_head *q, struct brcmf_usbreq *req,
404 int *counter)
405{
406 unsigned long flags;
407 spin_lock_irqsave(&devinfo->qlock, flags);
408 list_add_tail(&req->list, q);
409 if (counter)
410 (*counter)++;
411 spin_unlock_irqrestore(&devinfo->qlock, flags);
412}
413
414static struct brcmf_usbreq *
415brcmf_usbdev_qinit(struct list_head *q, int qsize)
416{
417 int i;
418 struct brcmf_usbreq *req, *reqs;
419
420 reqs = kcalloc(qsize, sizeof(struct brcmf_usbreq), GFP_ATOMIC);
421 if (reqs == NULL)
422 return NULL;
423
424 req = reqs;
425
426 for (i = 0; i < qsize; i++) {
427 req->urb = usb_alloc_urb(0, GFP_ATOMIC);
428 if (!req->urb)
429 goto fail;
430
431 INIT_LIST_HEAD(&req->list);
432 list_add_tail(&req->list, q);
433 req++;
434 }
435 return reqs;
436fail:
437 brcmf_err("fail!\n");
438 while (!list_empty(q)) {
439 req = list_entry(q->next, struct brcmf_usbreq, list);
440 if (req)
441 usb_free_urb(req->urb);
442 list_del(q->next);
443 }
444 return NULL;
445
446}
447
448static void brcmf_usb_free_q(struct list_head *q)
449{
450 struct brcmf_usbreq *req, *next;
451
452 list_for_each_entry_safe(req, next, q, list) {
453 if (!req->urb) {
454 brcmf_err("bad req\n");
455 break;
456 }
457 usb_free_urb(req->urb);
458 list_del_init(&req->list);
459 }
460}
461
462static void brcmf_usb_del_fromq(struct brcmf_usbdev_info *devinfo,
463 struct brcmf_usbreq *req)
464{
465 unsigned long flags;
466
467 spin_lock_irqsave(&devinfo->qlock, flags);
468 list_del_init(&req->list);
469 spin_unlock_irqrestore(&devinfo->qlock, flags);
470}
471
472
473static void brcmf_usb_tx_complete(struct urb *urb)
474{
475 struct brcmf_usbreq *req = (struct brcmf_usbreq *)urb->context;
476 struct brcmf_usbdev_info *devinfo = req->devinfo;
477 unsigned long flags;
478
479 brcmf_dbg(USB, "Enter, urb->status=%d, skb=%p\n", urb->status,
480 req->skb);
481 brcmf_usb_del_fromq(devinfo, req);
482
483 brcmf_proto_bcdc_txcomplete(devinfo->dev, req->skb, urb->status == 0);
484 req->skb = NULL;
485 brcmf_usb_enq(devinfo, &devinfo->tx_freeq, req, &devinfo->tx_freecount);
486 spin_lock_irqsave(&devinfo->tx_flowblock_lock, flags);
487 if (devinfo->tx_freecount > devinfo->tx_high_watermark &&
488 devinfo->tx_flowblock) {
489 brcmf_proto_bcdc_txflowblock(devinfo->dev, false);
490 devinfo->tx_flowblock = false;
491 }
492 spin_unlock_irqrestore(&devinfo->tx_flowblock_lock, flags);
493}
494
495static void brcmf_usb_rx_complete(struct urb *urb)
496{
497 struct brcmf_usbreq *req = (struct brcmf_usbreq *)urb->context;
498 struct brcmf_usbdev_info *devinfo = req->devinfo;
499 struct sk_buff *skb;
500
501 brcmf_dbg(USB, "Enter, urb->status=%d\n", urb->status);
502 brcmf_usb_del_fromq(devinfo, req);
503 skb = req->skb;
504 req->skb = NULL;
505
506
507 if (urb->status != 0 || !urb->actual_length) {
508 brcmu_pkt_buf_free_skb(skb);
509 brcmf_usb_enq(devinfo, &devinfo->rx_freeq, req, NULL);
510 return;
511 }
512
513 if (devinfo->bus_pub.state == BRCMFMAC_USB_STATE_UP) {
514 skb_put(skb, urb->actual_length);
515 brcmf_rx_frame(devinfo->dev, skb, true);
516 brcmf_usb_rx_refill(devinfo, req);
517 } else {
518 brcmu_pkt_buf_free_skb(skb);
519 brcmf_usb_enq(devinfo, &devinfo->rx_freeq, req, NULL);
520 }
521 return;
522
523}
524
525static void brcmf_usb_rx_refill(struct brcmf_usbdev_info *devinfo,
526 struct brcmf_usbreq *req)
527{
528 struct sk_buff *skb;
529 int ret;
530
531 if (!req || !devinfo)
532 return;
533
534 skb = dev_alloc_skb(devinfo->bus_pub.bus_mtu);
535 if (!skb) {
536 brcmf_usb_enq(devinfo, &devinfo->rx_freeq, req, NULL);
537 return;
538 }
539 req->skb = skb;
540
541 usb_fill_bulk_urb(req->urb, devinfo->usbdev, devinfo->rx_pipe,
542 skb->data, skb_tailroom(skb), brcmf_usb_rx_complete,
543 req);
544 req->devinfo = devinfo;
545 brcmf_usb_enq(devinfo, &devinfo->rx_postq, req, NULL);
546
547 ret = usb_submit_urb(req->urb, GFP_ATOMIC);
548 if (ret) {
549 brcmf_usb_del_fromq(devinfo, req);
550 brcmu_pkt_buf_free_skb(req->skb);
551 req->skb = NULL;
552 brcmf_usb_enq(devinfo, &devinfo->rx_freeq, req, NULL);
553 }
554 return;
555}
556
557static void brcmf_usb_rx_fill_all(struct brcmf_usbdev_info *devinfo)
558{
559 struct brcmf_usbreq *req;
560
561 if (devinfo->bus_pub.state != BRCMFMAC_USB_STATE_UP) {
562 brcmf_err("bus is not up=%d\n", devinfo->bus_pub.state);
563 return;
564 }
565 while ((req = brcmf_usb_deq(devinfo, &devinfo->rx_freeq, NULL)) != NULL)
566 brcmf_usb_rx_refill(devinfo, req);
567}
568
569static void
570brcmf_usb_state_change(struct brcmf_usbdev_info *devinfo, int state)
571{
572 struct brcmf_bus *bcmf_bus = devinfo->bus_pub.bus;
573
574 brcmf_dbg(USB, "Enter, current state=%d, new state=%d\n",
575 devinfo->bus_pub.state, state);
576
577 if (devinfo->bus_pub.state == state)
578 return;
579
580 devinfo->bus_pub.state = state;
581
582
583 if (state == BRCMFMAC_USB_STATE_DOWN) {
584 brcmf_dbg(USB, "DBUS is down\n");
585 brcmf_bus_change_state(bcmf_bus, BRCMF_BUS_DOWN);
586 } else if (state == BRCMFMAC_USB_STATE_UP) {
587 brcmf_dbg(USB, "DBUS is up\n");
588 brcmf_bus_change_state(bcmf_bus, BRCMF_BUS_UP);
589 } else {
590 brcmf_dbg(USB, "DBUS current state=%d\n", state);
591 }
592}
593
594static int brcmf_usb_tx(struct device *dev, struct sk_buff *skb)
595{
596 struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(dev);
597 struct brcmf_usbreq *req;
598 int ret;
599 unsigned long flags;
600
601 brcmf_dbg(USB, "Enter, skb=%p\n", skb);
602 if (devinfo->bus_pub.state != BRCMFMAC_USB_STATE_UP) {
603 ret = -EIO;
604 goto fail;
605 }
606
607 req = brcmf_usb_deq(devinfo, &devinfo->tx_freeq,
608 &devinfo->tx_freecount);
609 if (!req) {
610 brcmf_err("no req to send\n");
611 ret = -ENOMEM;
612 goto fail;
613 }
614
615 req->skb = skb;
616 req->devinfo = devinfo;
617 usb_fill_bulk_urb(req->urb, devinfo->usbdev, devinfo->tx_pipe,
618 skb->data, skb->len, brcmf_usb_tx_complete, req);
619 req->urb->transfer_flags |= URB_ZERO_PACKET;
620 brcmf_usb_enq(devinfo, &devinfo->tx_postq, req, NULL);
621 ret = usb_submit_urb(req->urb, GFP_ATOMIC);
622 if (ret) {
623 brcmf_err("brcmf_usb_tx usb_submit_urb FAILED\n");
624 brcmf_usb_del_fromq(devinfo, req);
625 req->skb = NULL;
626 brcmf_usb_enq(devinfo, &devinfo->tx_freeq, req,
627 &devinfo->tx_freecount);
628 goto fail;
629 }
630
631 spin_lock_irqsave(&devinfo->tx_flowblock_lock, flags);
632 if (devinfo->tx_freecount < devinfo->tx_low_watermark &&
633 !devinfo->tx_flowblock) {
634 brcmf_proto_bcdc_txflowblock(dev, true);
635 devinfo->tx_flowblock = true;
636 }
637 spin_unlock_irqrestore(&devinfo->tx_flowblock_lock, flags);
638 return 0;
639
640fail:
641 return ret;
642}
643
644
645static int brcmf_usb_up(struct device *dev)
646{
647 struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(dev);
648
649 brcmf_dbg(USB, "Enter\n");
650 if (devinfo->bus_pub.state == BRCMFMAC_USB_STATE_UP)
651 return 0;
652
653
654 brcmf_usb_state_change(devinfo, BRCMFMAC_USB_STATE_UP);
655
656 if (devinfo->ctl_urb) {
657 devinfo->ctl_in_pipe = usb_rcvctrlpipe(devinfo->usbdev, 0);
658 devinfo->ctl_out_pipe = usb_sndctrlpipe(devinfo->usbdev, 0);
659
660
661 devinfo->ctl_write.bRequestType =
662 USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE;
663 devinfo->ctl_write.bRequest = 0;
664 devinfo->ctl_write.wValue = cpu_to_le16(0);
665 devinfo->ctl_write.wIndex = cpu_to_le16(devinfo->ifnum);
666
667
668 devinfo->ctl_read.bRequestType =
669 USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE;
670 devinfo->ctl_read.bRequest = 1;
671 devinfo->ctl_read.wValue = cpu_to_le16(0);
672 devinfo->ctl_read.wIndex = cpu_to_le16(devinfo->ifnum);
673 }
674 brcmf_usb_rx_fill_all(devinfo);
675 return 0;
676}
677
678static void brcmf_cancel_all_urbs(struct brcmf_usbdev_info *devinfo)
679{
680 int i;
681
682 if (devinfo->ctl_urb)
683 usb_kill_urb(devinfo->ctl_urb);
684 if (devinfo->bulk_urb)
685 usb_kill_urb(devinfo->bulk_urb);
686 if (devinfo->tx_reqs)
687 for (i = 0; i < devinfo->bus_pub.ntxq; i++)
688 usb_kill_urb(devinfo->tx_reqs[i].urb);
689 if (devinfo->rx_reqs)
690 for (i = 0; i < devinfo->bus_pub.nrxq; i++)
691 usb_kill_urb(devinfo->rx_reqs[i].urb);
692}
693
694static void brcmf_usb_down(struct device *dev)
695{
696 struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(dev);
697
698 brcmf_dbg(USB, "Enter\n");
699 if (devinfo == NULL)
700 return;
701
702 if (devinfo->bus_pub.state == BRCMFMAC_USB_STATE_DOWN)
703 return;
704
705 brcmf_usb_state_change(devinfo, BRCMFMAC_USB_STATE_DOWN);
706
707 brcmf_cancel_all_urbs(devinfo);
708}
709
710static void
711brcmf_usb_sync_complete(struct urb *urb)
712{
713 struct brcmf_usbdev_info *devinfo =
714 (struct brcmf_usbdev_info *)urb->context;
715
716 devinfo->ctl_completed = true;
717 brcmf_usb_ioctl_resp_wake(devinfo);
718}
719
720static int brcmf_usb_dl_cmd(struct brcmf_usbdev_info *devinfo, u8 cmd,
721 void *buffer, int buflen)
722{
723 int ret;
724 char *tmpbuf;
725 u16 size;
726
727 if ((!devinfo) || (devinfo->ctl_urb == NULL))
728 return -EINVAL;
729
730 tmpbuf = kmalloc(buflen, GFP_ATOMIC);
731 if (!tmpbuf)
732 return -ENOMEM;
733
734 size = buflen;
735 devinfo->ctl_urb->transfer_buffer_length = size;
736
737 devinfo->ctl_read.wLength = cpu_to_le16p(&size);
738 devinfo->ctl_read.bRequestType = USB_DIR_IN | USB_TYPE_VENDOR |
739 USB_RECIP_INTERFACE;
740 devinfo->ctl_read.bRequest = cmd;
741
742 usb_fill_control_urb(devinfo->ctl_urb,
743 devinfo->usbdev,
744 usb_rcvctrlpipe(devinfo->usbdev, 0),
745 (unsigned char *) &devinfo->ctl_read,
746 (void *) tmpbuf, size,
747 (usb_complete_t)brcmf_usb_sync_complete, devinfo);
748
749 devinfo->ctl_completed = false;
750 ret = usb_submit_urb(devinfo->ctl_urb, GFP_ATOMIC);
751 if (ret < 0) {
752 brcmf_err("usb_submit_urb failed %d\n", ret);
753 goto finalize;
754 }
755
756 if (!brcmf_usb_ioctl_resp_wait(devinfo)) {
757 usb_kill_urb(devinfo->ctl_urb);
758 ret = -ETIMEDOUT;
759 } else {
760 memcpy(buffer, tmpbuf, buflen);
761 }
762
763finalize:
764 kfree(tmpbuf);
765 return ret;
766}
767
768static bool
769brcmf_usb_dlneeded(struct brcmf_usbdev_info *devinfo)
770{
771 struct bootrom_id_le id;
772 u32 chipid, chiprev;
773
774 brcmf_dbg(USB, "Enter\n");
775
776 if (devinfo == NULL)
777 return false;
778
779
780 id.chip = cpu_to_le32(0xDEAD);
781 brcmf_usb_dl_cmd(devinfo, DL_GETVER, &id, sizeof(id));
782
783 chipid = le32_to_cpu(id.chip);
784 chiprev = le32_to_cpu(id.chiprev);
785
786 if ((chipid & 0x4300) == 0x4300)
787 brcmf_dbg(USB, "chip %x rev 0x%x\n", chipid, chiprev);
788 else
789 brcmf_dbg(USB, "chip %d rev 0x%x\n", chipid, chiprev);
790 if (chipid == BRCMF_POSTBOOT_ID) {
791 brcmf_dbg(USB, "firmware already downloaded\n");
792 brcmf_usb_dl_cmd(devinfo, DL_RESETCFG, &id, sizeof(id));
793 return false;
794 } else {
795 devinfo->bus_pub.devid = chipid;
796 devinfo->bus_pub.chiprev = chiprev;
797 }
798 return true;
799}
800
801static int
802brcmf_usb_resetcfg(struct brcmf_usbdev_info *devinfo)
803{
804 struct bootrom_id_le id;
805 u32 loop_cnt;
806 int err;
807
808 brcmf_dbg(USB, "Enter\n");
809
810 loop_cnt = 0;
811 do {
812 mdelay(BRCMF_USB_RESET_GETVER_SPINWAIT);
813 loop_cnt++;
814 id.chip = cpu_to_le32(0xDEAD);
815 err = brcmf_usb_dl_cmd(devinfo, DL_GETVER, &id, sizeof(id));
816 if ((err) && (err != -ETIMEDOUT))
817 return err;
818 if (id.chip == cpu_to_le32(BRCMF_POSTBOOT_ID))
819 break;
820 } while (loop_cnt < BRCMF_USB_RESET_GETVER_LOOP_CNT);
821
822 if (id.chip == cpu_to_le32(BRCMF_POSTBOOT_ID)) {
823 brcmf_dbg(USB, "postboot chip 0x%x/rev 0x%x\n",
824 le32_to_cpu(id.chip), le32_to_cpu(id.chiprev));
825
826 brcmf_usb_dl_cmd(devinfo, DL_RESETCFG, &id, sizeof(id));
827 return 0;
828 } else {
829 brcmf_err("Cannot talk to Dongle. Firmware is not UP, %d ms\n",
830 BRCMF_USB_RESET_GETVER_SPINWAIT * loop_cnt);
831 return -EINVAL;
832 }
833}
834
835
836static int
837brcmf_usb_dl_send_bulk(struct brcmf_usbdev_info *devinfo, void *buffer, int len)
838{
839 int ret;
840
841 if ((devinfo == NULL) || (devinfo->bulk_urb == NULL))
842 return -EINVAL;
843
844
845 usb_fill_bulk_urb(devinfo->bulk_urb, devinfo->usbdev,
846 devinfo->tx_pipe, buffer, len,
847 (usb_complete_t)brcmf_usb_sync_complete, devinfo);
848
849 devinfo->bulk_urb->transfer_flags |= URB_ZERO_PACKET;
850
851 devinfo->ctl_completed = false;
852 ret = usb_submit_urb(devinfo->bulk_urb, GFP_ATOMIC);
853 if (ret) {
854 brcmf_err("usb_submit_urb failed %d\n", ret);
855 return ret;
856 }
857 ret = brcmf_usb_ioctl_resp_wait(devinfo);
858 return (ret == 0);
859}
860
861static int
862brcmf_usb_dl_writeimage(struct brcmf_usbdev_info *devinfo, u8 *fw, int fwlen)
863{
864 unsigned int sendlen, sent, dllen;
865 char *bulkchunk = NULL, *dlpos;
866 struct rdl_state_le state;
867 u32 rdlstate, rdlbytes;
868 int err = 0;
869
870 brcmf_dbg(USB, "Enter, fw %p, len %d\n", fw, fwlen);
871
872 bulkchunk = kmalloc(TRX_RDL_CHUNK, GFP_ATOMIC);
873 if (bulkchunk == NULL) {
874 err = -ENOMEM;
875 goto fail;
876 }
877
878
879 brcmf_usb_dl_cmd(devinfo, DL_START, &state, sizeof(state));
880
881 rdlstate = le32_to_cpu(state.state);
882 rdlbytes = le32_to_cpu(state.bytes);
883
884
885 if (rdlstate != DL_WAITING) {
886 brcmf_err("Failed to DL_START\n");
887 err = -EINVAL;
888 goto fail;
889 }
890 sent = 0;
891 dlpos = fw;
892 dllen = fwlen;
893
894
895 while (rdlbytes != dllen) {
896
897
898 if ((rdlbytes == sent) && (rdlbytes != dllen)) {
899 if ((dllen-sent) < TRX_RDL_CHUNK)
900 sendlen = dllen-sent;
901 else
902 sendlen = TRX_RDL_CHUNK;
903
904
905
906
907
908 if (!(sendlen % 64))
909 sendlen -= 4;
910
911
912 memcpy(bulkchunk, dlpos, sendlen);
913 if (brcmf_usb_dl_send_bulk(devinfo, bulkchunk,
914 sendlen)) {
915 brcmf_err("send_bulk failed\n");
916 err = -EINVAL;
917 goto fail;
918 }
919
920 dlpos += sendlen;
921 sent += sendlen;
922 }
923 err = brcmf_usb_dl_cmd(devinfo, DL_GETSTATE, &state,
924 sizeof(state));
925 if (err) {
926 brcmf_err("DL_GETSTATE Failed\n");
927 goto fail;
928 }
929
930 rdlstate = le32_to_cpu(state.state);
931 rdlbytes = le32_to_cpu(state.bytes);
932
933
934 if (rdlstate == DL_BAD_HDR || rdlstate == DL_BAD_CRC) {
935 brcmf_err("Bad Hdr or Bad CRC state %d\n",
936 rdlstate);
937 err = -EINVAL;
938 goto fail;
939 }
940 }
941
942fail:
943 kfree(bulkchunk);
944 brcmf_dbg(USB, "Exit, err=%d\n", err);
945 return err;
946}
947
948static int brcmf_usb_dlstart(struct brcmf_usbdev_info *devinfo, u8 *fw, int len)
949{
950 int err;
951
952 brcmf_dbg(USB, "Enter\n");
953
954 if (devinfo == NULL)
955 return -EINVAL;
956
957 if (devinfo->bus_pub.devid == 0xDEAD)
958 return -EINVAL;
959
960 err = brcmf_usb_dl_writeimage(devinfo, fw, len);
961 if (err == 0)
962 devinfo->bus_pub.state = BRCMFMAC_USB_STATE_DL_DONE;
963 else
964 devinfo->bus_pub.state = BRCMFMAC_USB_STATE_DL_FAIL;
965 brcmf_dbg(USB, "Exit, err=%d\n", err);
966
967 return err;
968}
969
970static int brcmf_usb_dlrun(struct brcmf_usbdev_info *devinfo)
971{
972 struct rdl_state_le state;
973
974 brcmf_dbg(USB, "Enter\n");
975 if (!devinfo)
976 return -EINVAL;
977
978 if (devinfo->bus_pub.devid == 0xDEAD)
979 return -EINVAL;
980
981
982 state.state = 0;
983 brcmf_usb_dl_cmd(devinfo, DL_GETSTATE, &state, sizeof(state));
984
985
986 if (state.state == cpu_to_le32(DL_RUNNABLE)) {
987 if (brcmf_usb_dl_cmd(devinfo, DL_GO, &state, sizeof(state)))
988 return -ENODEV;
989 if (brcmf_usb_resetcfg(devinfo))
990 return -ENODEV;
991
992 } else {
993 brcmf_err("Dongle not runnable\n");
994 return -EINVAL;
995 }
996 brcmf_dbg(USB, "Exit\n");
997 return 0;
998}
999
1000static int
1001brcmf_usb_fw_download(struct brcmf_usbdev_info *devinfo)
1002{
1003 int err;
1004
1005 brcmf_dbg(USB, "Enter\n");
1006 if (devinfo == NULL)
1007 return -ENODEV;
1008
1009 if (!devinfo->image) {
1010 brcmf_err("No firmware!\n");
1011 return -ENOENT;
1012 }
1013
1014 err = brcmf_usb_dlstart(devinfo,
1015 (u8 *)devinfo->image, devinfo->image_len);
1016 if (err == 0)
1017 err = brcmf_usb_dlrun(devinfo);
1018 return err;
1019}
1020
1021
1022static void brcmf_usb_detach(struct brcmf_usbdev_info *devinfo)
1023{
1024 brcmf_dbg(USB, "Enter, devinfo %p\n", devinfo);
1025
1026
1027 brcmf_usb_free_q(&devinfo->rx_freeq);
1028 brcmf_usb_free_q(&devinfo->tx_freeq);
1029
1030 usb_free_urb(devinfo->ctl_urb);
1031 usb_free_urb(devinfo->bulk_urb);
1032
1033 kfree(devinfo->tx_reqs);
1034 kfree(devinfo->rx_reqs);
1035
1036 if (devinfo->settings)
1037 brcmf_release_module_param(devinfo->settings);
1038}
1039
1040
1041static int check_file(const u8 *headers)
1042{
1043 struct trx_header_le *trx;
1044 int actual_len = -1;
1045
1046 brcmf_dbg(USB, "Enter\n");
1047
1048 trx = (struct trx_header_le *) headers;
1049 if (trx->magic != cpu_to_le32(TRX_MAGIC))
1050 return -1;
1051
1052 headers += sizeof(struct trx_header_le);
1053
1054 if (le32_to_cpu(trx->flag_version) & TRX_UNCOMP_IMAGE) {
1055 actual_len = le32_to_cpu(trx->offsets[TRX_OFFSETS_DLFWLEN_IDX]);
1056 return actual_len + sizeof(struct trx_header_le);
1057 }
1058 return -1;
1059}
1060
1061
1062static
1063struct brcmf_usbdev *brcmf_usb_attach(struct brcmf_usbdev_info *devinfo,
1064 int nrxq, int ntxq)
1065{
1066 brcmf_dbg(USB, "Enter\n");
1067
1068 devinfo->bus_pub.nrxq = nrxq;
1069 devinfo->rx_low_watermark = nrxq / 2;
1070 devinfo->bus_pub.devinfo = devinfo;
1071 devinfo->bus_pub.ntxq = ntxq;
1072 devinfo->bus_pub.state = BRCMFMAC_USB_STATE_DOWN;
1073
1074
1075 devinfo->tx_low_watermark = ntxq / 4;
1076 devinfo->tx_high_watermark = devinfo->tx_low_watermark * 3;
1077 devinfo->bus_pub.bus_mtu = BRCMF_USB_MAX_PKT_SIZE;
1078
1079
1080 init_waitqueue_head(&devinfo->ioctl_resp_wait);
1081
1082
1083 spin_lock_init(&devinfo->qlock);
1084 spin_lock_init(&devinfo->tx_flowblock_lock);
1085
1086 INIT_LIST_HEAD(&devinfo->rx_freeq);
1087 INIT_LIST_HEAD(&devinfo->rx_postq);
1088
1089 INIT_LIST_HEAD(&devinfo->tx_freeq);
1090 INIT_LIST_HEAD(&devinfo->tx_postq);
1091
1092 devinfo->tx_flowblock = false;
1093
1094 devinfo->rx_reqs = brcmf_usbdev_qinit(&devinfo->rx_freeq, nrxq);
1095 if (!devinfo->rx_reqs)
1096 goto error;
1097
1098 devinfo->tx_reqs = brcmf_usbdev_qinit(&devinfo->tx_freeq, ntxq);
1099 if (!devinfo->tx_reqs)
1100 goto error;
1101 devinfo->tx_freecount = ntxq;
1102
1103 devinfo->ctl_urb = usb_alloc_urb(0, GFP_ATOMIC);
1104 if (!devinfo->ctl_urb)
1105 goto error;
1106 devinfo->bulk_urb = usb_alloc_urb(0, GFP_ATOMIC);
1107 if (!devinfo->bulk_urb)
1108 goto error;
1109
1110 return &devinfo->bus_pub;
1111
1112error:
1113 brcmf_err("failed!\n");
1114 brcmf_usb_detach(devinfo);
1115 return NULL;
1116}
1117
1118static void brcmf_usb_wowl_config(struct device *dev, bool enabled)
1119{
1120 struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(dev);
1121
1122 brcmf_dbg(USB, "Configuring WOWL, enabled=%d\n", enabled);
1123 devinfo->wowl_enabled = enabled;
1124 if (enabled)
1125 device_set_wakeup_enable(devinfo->dev, true);
1126 else
1127 device_set_wakeup_enable(devinfo->dev, false);
1128}
1129
1130static
1131int brcmf_usb_get_fwname(struct device *dev, const char *ext, u8 *fw_name)
1132{
1133 struct brcmf_bus *bus = dev_get_drvdata(dev);
1134 struct brcmf_fw_request *fwreq;
1135 struct brcmf_fw_name fwnames[] = {
1136 { ext, fw_name },
1137 };
1138
1139 fwreq = brcmf_fw_alloc_request(bus->chip, bus->chiprev,
1140 brcmf_usb_fwnames,
1141 ARRAY_SIZE(brcmf_usb_fwnames),
1142 fwnames, ARRAY_SIZE(fwnames));
1143 if (!fwreq)
1144 return -ENOMEM;
1145
1146 kfree(fwreq);
1147 return 0;
1148}
1149
1150static const struct brcmf_bus_ops brcmf_usb_bus_ops = {
1151 .preinit = brcmf_usb_up,
1152 .stop = brcmf_usb_down,
1153 .txdata = brcmf_usb_tx,
1154 .txctl = brcmf_usb_tx_ctlpkt,
1155 .rxctl = brcmf_usb_rx_ctlpkt,
1156 .wowl_config = brcmf_usb_wowl_config,
1157 .get_fwname = brcmf_usb_get_fwname,
1158};
1159
1160#define BRCMF_USB_FW_CODE 0
1161
1162static void brcmf_usb_probe_phase2(struct device *dev, int ret,
1163 struct brcmf_fw_request *fwreq)
1164{
1165 struct brcmf_bus *bus = dev_get_drvdata(dev);
1166 struct brcmf_usbdev_info *devinfo = bus->bus_priv.usb->devinfo;
1167 const struct firmware *fw;
1168
1169 if (ret)
1170 goto error;
1171
1172 brcmf_dbg(USB, "Start fw downloading\n");
1173
1174 fw = fwreq->items[BRCMF_USB_FW_CODE].binary;
1175 kfree(fwreq);
1176
1177 ret = check_file(fw->data);
1178 if (ret < 0) {
1179 brcmf_err("invalid firmware\n");
1180 release_firmware(fw);
1181 goto error;
1182 }
1183
1184 devinfo->image = fw->data;
1185 devinfo->image_len = fw->size;
1186
1187 ret = brcmf_usb_fw_download(devinfo);
1188 release_firmware(fw);
1189 if (ret)
1190 goto error;
1191
1192
1193 ret = brcmf_attach(devinfo->dev, devinfo->settings);
1194 if (ret)
1195 goto error;
1196
1197 complete(&devinfo->dev_init_done);
1198 return;
1199error:
1200 brcmf_dbg(TRACE, "failed: dev=%s, err=%d\n", dev_name(dev), ret);
1201 complete(&devinfo->dev_init_done);
1202 device_release_driver(dev);
1203}
1204
1205static struct brcmf_fw_request *
1206brcmf_usb_prepare_fw_request(struct brcmf_usbdev_info *devinfo)
1207{
1208 struct brcmf_fw_request *fwreq;
1209 struct brcmf_fw_name fwnames[] = {
1210 { ".bin", devinfo->fw_name },
1211 };
1212
1213 fwreq = brcmf_fw_alloc_request(devinfo->bus_pub.devid,
1214 devinfo->bus_pub.chiprev,
1215 brcmf_usb_fwnames,
1216 ARRAY_SIZE(brcmf_usb_fwnames),
1217 fwnames, ARRAY_SIZE(fwnames));
1218 if (!fwreq)
1219 return NULL;
1220
1221 fwreq->items[BRCMF_USB_FW_CODE].type = BRCMF_FW_TYPE_BINARY;
1222
1223 return fwreq;
1224}
1225
1226static int brcmf_usb_probe_cb(struct brcmf_usbdev_info *devinfo)
1227{
1228 struct brcmf_bus *bus = NULL;
1229 struct brcmf_usbdev *bus_pub = NULL;
1230 struct device *dev = devinfo->dev;
1231 struct brcmf_fw_request *fwreq;
1232 int ret;
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->proto_type = BRCMF_PROTO_BCDC;
1251 bus->always_use_fws_queue = true;
1252#ifdef CONFIG_PM
1253 bus->wowl_supported = true;
1254#endif
1255
1256 devinfo->settings = brcmf_get_module_param(bus->dev, BRCMF_BUSTYPE_USB,
1257 bus_pub->devid,
1258 bus_pub->chiprev);
1259 if (!devinfo->settings) {
1260 ret = -ENOMEM;
1261 goto fail;
1262 }
1263
1264 if (!brcmf_usb_dlneeded(devinfo)) {
1265 ret = brcmf_attach(devinfo->dev, devinfo->settings);
1266 if (ret)
1267 goto fail;
1268
1269 complete(&devinfo->dev_init_done);
1270 return 0;
1271 }
1272 bus->chip = bus_pub->devid;
1273 bus->chiprev = bus_pub->chiprev;
1274
1275 fwreq = brcmf_usb_prepare_fw_request(devinfo);
1276 if (!fwreq) {
1277 ret = -ENOMEM;
1278 goto fail;
1279 }
1280
1281
1282 ret = brcmf_fw_get_firmwares(dev, fwreq, brcmf_usb_probe_phase2);
1283 if (ret) {
1284 brcmf_err("firmware request failed: %d\n", ret);
1285 kfree(fwreq);
1286 goto fail;
1287 }
1288
1289 return 0;
1290
1291fail:
1292
1293 kfree(bus);
1294 brcmf_usb_detach(devinfo);
1295 return ret;
1296}
1297
1298static void
1299brcmf_usb_disconnect_cb(struct brcmf_usbdev_info *devinfo)
1300{
1301 if (!devinfo)
1302 return;
1303 brcmf_dbg(USB, "Enter, bus_pub %p\n", devinfo);
1304
1305 brcmf_detach(devinfo->dev);
1306 kfree(devinfo->bus_pub.bus);
1307 brcmf_usb_detach(devinfo);
1308}
1309
1310static int
1311brcmf_usb_probe(struct usb_interface *intf, const struct usb_device_id *id)
1312{
1313 struct usb_device *usb = interface_to_usbdev(intf);
1314 struct brcmf_usbdev_info *devinfo;
1315 struct usb_interface_descriptor *desc;
1316 struct usb_endpoint_descriptor *endpoint;
1317 int ret = 0;
1318 u32 num_of_eps;
1319 u8 endpoint_num, ep;
1320
1321 brcmf_dbg(USB, "Enter 0x%04x:0x%04x\n", id->idVendor, id->idProduct);
1322
1323 devinfo = kzalloc(sizeof(*devinfo), GFP_ATOMIC);
1324 if (devinfo == NULL)
1325 return -ENOMEM;
1326
1327 devinfo->usbdev = usb;
1328 devinfo->dev = &usb->dev;
1329
1330
1331
1332 init_completion(&devinfo->dev_init_done);
1333
1334 usb_set_intfdata(intf, devinfo);
1335
1336
1337 if (usb->descriptor.bNumConfigurations != 1) {
1338 brcmf_err("Number of configurations: %d not supported\n",
1339 usb->descriptor.bNumConfigurations);
1340 ret = -ENODEV;
1341 goto fail;
1342 }
1343
1344 if ((usb->descriptor.bDeviceClass != USB_CLASS_VENDOR_SPEC) &&
1345 (usb->descriptor.bDeviceClass != USB_CLASS_MISC) &&
1346 (usb->descriptor.bDeviceClass != USB_CLASS_WIRELESS_CONTROLLER)) {
1347 brcmf_err("Device class: 0x%x not supported\n",
1348 usb->descriptor.bDeviceClass);
1349 ret = -ENODEV;
1350 goto fail;
1351 }
1352
1353 desc = &intf->altsetting[0].desc;
1354 if ((desc->bInterfaceClass != USB_CLASS_VENDOR_SPEC) ||
1355 (desc->bInterfaceSubClass != 2) ||
1356 (desc->bInterfaceProtocol != 0xff)) {
1357 brcmf_err("non WLAN interface %d: 0x%x:0x%x:0x%x\n",
1358 desc->bInterfaceNumber, desc->bInterfaceClass,
1359 desc->bInterfaceSubClass, desc->bInterfaceProtocol);
1360 ret = -ENODEV;
1361 goto fail;
1362 }
1363
1364 num_of_eps = desc->bNumEndpoints;
1365 for (ep = 0; ep < num_of_eps; ep++) {
1366 endpoint = &intf->altsetting[0].endpoint[ep].desc;
1367 endpoint_num = usb_endpoint_num(endpoint);
1368 if (!usb_endpoint_xfer_bulk(endpoint))
1369 continue;
1370 if (usb_endpoint_dir_in(endpoint)) {
1371 if (!devinfo->rx_pipe)
1372 devinfo->rx_pipe =
1373 usb_rcvbulkpipe(usb, endpoint_num);
1374 } else {
1375 if (!devinfo->tx_pipe)
1376 devinfo->tx_pipe =
1377 usb_sndbulkpipe(usb, endpoint_num);
1378 }
1379 }
1380 if (devinfo->rx_pipe == 0) {
1381 brcmf_err("No RX (in) Bulk EP found\n");
1382 ret = -ENODEV;
1383 goto fail;
1384 }
1385 if (devinfo->tx_pipe == 0) {
1386 brcmf_err("No TX (out) Bulk EP found\n");
1387 ret = -ENODEV;
1388 goto fail;
1389 }
1390
1391 devinfo->ifnum = desc->bInterfaceNumber;
1392
1393 if (usb->speed == USB_SPEED_SUPER_PLUS)
1394 brcmf_dbg(USB, "Broadcom super speed plus USB WLAN interface detected\n");
1395 else if (usb->speed == USB_SPEED_SUPER)
1396 brcmf_dbg(USB, "Broadcom super speed USB WLAN interface detected\n");
1397 else if (usb->speed == USB_SPEED_HIGH)
1398 brcmf_dbg(USB, "Broadcom high speed USB WLAN interface detected\n");
1399 else
1400 brcmf_dbg(USB, "Broadcom full speed USB WLAN interface detected\n");
1401
1402 ret = brcmf_usb_probe_cb(devinfo);
1403 if (ret)
1404 goto fail;
1405
1406
1407 return 0;
1408
1409fail:
1410 complete(&devinfo->dev_init_done);
1411 kfree(devinfo);
1412 usb_set_intfdata(intf, NULL);
1413 return ret;
1414}
1415
1416static void
1417brcmf_usb_disconnect(struct usb_interface *intf)
1418{
1419 struct brcmf_usbdev_info *devinfo;
1420
1421 brcmf_dbg(USB, "Enter\n");
1422 devinfo = (struct brcmf_usbdev_info *)usb_get_intfdata(intf);
1423
1424 if (devinfo) {
1425 wait_for_completion(&devinfo->dev_init_done);
1426
1427
1428
1429 if (!usb_get_intfdata(intf))
1430 goto done;
1431
1432 brcmf_usb_disconnect_cb(devinfo);
1433 kfree(devinfo);
1434 }
1435done:
1436 brcmf_dbg(USB, "Exit\n");
1437}
1438
1439
1440
1441
1442static int brcmf_usb_suspend(struct usb_interface *intf, pm_message_t state)
1443{
1444 struct usb_device *usb = interface_to_usbdev(intf);
1445 struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(&usb->dev);
1446
1447 brcmf_dbg(USB, "Enter\n");
1448 devinfo->bus_pub.state = BRCMFMAC_USB_STATE_SLEEP;
1449 if (devinfo->wowl_enabled)
1450 brcmf_cancel_all_urbs(devinfo);
1451 else
1452 brcmf_detach(&usb->dev);
1453 return 0;
1454}
1455
1456
1457
1458
1459static int brcmf_usb_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 if (!devinfo->wowl_enabled)
1466 return brcmf_attach(devinfo->dev, devinfo->settings);
1467
1468 devinfo->bus_pub.state = BRCMFMAC_USB_STATE_UP;
1469 brcmf_usb_rx_fill_all(devinfo);
1470 return 0;
1471}
1472
1473static int brcmf_usb_reset_resume(struct usb_interface *intf)
1474{
1475 struct usb_device *usb = interface_to_usbdev(intf);
1476 struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(&usb->dev);
1477 struct brcmf_fw_request *fwreq;
1478 int ret;
1479
1480 brcmf_dbg(USB, "Enter\n");
1481
1482 fwreq = brcmf_usb_prepare_fw_request(devinfo);
1483 if (!fwreq)
1484 return -ENOMEM;
1485
1486 ret = brcmf_fw_get_firmwares(&usb->dev, fwreq, brcmf_usb_probe_phase2);
1487 if (ret < 0)
1488 kfree(fwreq);
1489
1490 return ret;
1491}
1492
1493#define BRCMF_USB_DEVICE(dev_id) \
1494 { USB_DEVICE(BRCM_USB_VENDOR_ID_BROADCOM, dev_id) }
1495
1496#define LINKSYS_USB_DEVICE(dev_id) \
1497 { USB_DEVICE(BRCM_USB_VENDOR_ID_LINKSYS, dev_id) }
1498
1499#define CYPRESS_USB_DEVICE(dev_id) \
1500 { USB_DEVICE(CY_USB_VENDOR_ID_CYPRESS, dev_id) }
1501
1502static const struct usb_device_id brcmf_usb_devid_table[] = {
1503 BRCMF_USB_DEVICE(BRCM_USB_43143_DEVICE_ID),
1504 BRCMF_USB_DEVICE(BRCM_USB_43236_DEVICE_ID),
1505 BRCMF_USB_DEVICE(BRCM_USB_43242_DEVICE_ID),
1506 BRCMF_USB_DEVICE(BRCM_USB_43569_DEVICE_ID),
1507 LINKSYS_USB_DEVICE(BRCM_USB_43235_LINKSYS_DEVICE_ID),
1508 CYPRESS_USB_DEVICE(CY_USB_4373_DEVICE_ID),
1509 { USB_DEVICE(BRCM_USB_VENDOR_ID_LG, BRCM_USB_43242_LG_DEVICE_ID) },
1510
1511 BRCMF_USB_DEVICE(BRCM_USB_BCMFW_DEVICE_ID),
1512 CYPRESS_USB_DEVICE(BRCM_USB_BCMFW_DEVICE_ID),
1513 { }
1514};
1515
1516MODULE_DEVICE_TABLE(usb, brcmf_usb_devid_table);
1517
1518static struct usb_driver brcmf_usbdrvr = {
1519 .name = KBUILD_MODNAME,
1520 .probe = brcmf_usb_probe,
1521 .disconnect = brcmf_usb_disconnect,
1522 .id_table = brcmf_usb_devid_table,
1523 .suspend = brcmf_usb_suspend,
1524 .resume = brcmf_usb_resume,
1525 .reset_resume = brcmf_usb_reset_resume,
1526 .disable_hub_initiated_lpm = 1,
1527};
1528
1529static int brcmf_usb_reset_device(struct device *dev, void *notused)
1530{
1531
1532
1533
1534 brcmf_dev_reset(dev->parent);
1535 return 0;
1536}
1537
1538void brcmf_usb_exit(void)
1539{
1540 struct device_driver *drv = &brcmf_usbdrvr.drvwrap.driver;
1541 int ret;
1542
1543 brcmf_dbg(USB, "Enter\n");
1544 ret = driver_for_each_device(drv, NULL, NULL,
1545 brcmf_usb_reset_device);
1546 usb_deregister(&brcmf_usbdrvr);
1547}
1548
1549void brcmf_usb_register(void)
1550{
1551 int ret;
1552
1553 brcmf_dbg(USB, "Enter\n");
1554 ret = usb_register(&brcmf_usbdrvr);
1555 if (ret)
1556 brcmf_err("usb_register failed %d\n", ret);
1557}
1558
