This source file includes following definitions.
- brcmf_usb_get_buspub
- brcmf_usb_get_businfo
- brcmf_usb_ioctl_resp_wait
- brcmf_usb_ioctl_resp_wake
- brcmf_usb_ctl_complete
- brcmf_usb_ctlread_complete
- brcmf_usb_ctlwrite_complete
- brcmf_usb_send_ctl
- brcmf_usb_recv_ctl
- brcmf_usb_tx_ctlpkt
- brcmf_usb_rx_ctlpkt
- brcmf_usb_deq
- brcmf_usb_enq
- brcmf_usbdev_qinit
- brcmf_usb_free_q
- brcmf_usb_del_fromq
- brcmf_usb_tx_complete
- brcmf_usb_rx_complete
- brcmf_usb_rx_refill
- brcmf_usb_rx_fill_all
- brcmf_usb_state_change
- brcmf_usb_tx
- brcmf_usb_up
- brcmf_cancel_all_urbs
- brcmf_usb_down
- brcmf_usb_sync_complete
- brcmf_usb_dl_cmd
- brcmf_usb_dlneeded
- brcmf_usb_resetcfg
- brcmf_usb_dl_send_bulk
- brcmf_usb_dl_writeimage
- brcmf_usb_dlstart
- brcmf_usb_dlrun
- brcmf_usb_fw_download
- brcmf_usb_detach
- check_file
- brcmf_usb_attach
- brcmf_usb_wowl_config
- brcmf_usb_get_fwname
- brcmf_usb_probe_phase2
- brcmf_usb_prepare_fw_request
- brcmf_usb_probe_cb
- brcmf_usb_disconnect_cb
- brcmf_usb_probe
- brcmf_usb_disconnect
- brcmf_usb_suspend
- brcmf_usb_resume
- brcmf_usb_reset_resume
- brcmf_usb_reset_device
- brcmf_usb_exit
- brcmf_usb_register
1
2
3
4
5
6 #include <linux/kernel.h>
7 #include <linux/module.h>
8 #include <linux/firmware.h>
9 #include <linux/usb.h>
10 #include <linux/vmalloc.h>
11
12 #include <brcmu_utils.h>
13 #include <brcm_hw_ids.h>
14 #include <brcmu_wifi.h>
15 #include "bus.h"
16 #include "debug.h"
17 #include "firmware.h"
18 #include "usb.h"
19 #include "core.h"
20 #include "common.h"
21 #include "bcdc.h"
22
23
24 #define IOCTL_RESP_TIMEOUT msecs_to_jiffies(2000)
25
26 #define BRCMF_USB_RESET_GETVER_SPINWAIT 100
27 #define BRCMF_USB_RESET_GETVER_LOOP_CNT 10
28
29 #define BRCMF_POSTBOOT_ID 0xA123
30
31 #define BRCMF_USB_NRXQ 50
32 #define BRCMF_USB_NTXQ 50
33
34 #define BRCMF_USB_CBCTL_WRITE 0
35 #define BRCMF_USB_CBCTL_READ 1
36 #define BRCMF_USB_MAX_PKT_SIZE 1600
37
38 BRCMF_FW_DEF(43143, "brcmfmac43143");
39 BRCMF_FW_DEF(43236B, "brcmfmac43236b");
40 BRCMF_FW_DEF(43242A, "brcmfmac43242a");
41 BRCMF_FW_DEF(43569, "brcmfmac43569");
42 BRCMF_FW_DEF(4373, "brcmfmac4373");
43
44 static const struct brcmf_firmware_mapping brcmf_usb_fwnames[] = {
45 BRCMF_FW_ENTRY(BRCM_CC_43143_CHIP_ID, 0xFFFFFFFF, 43143),
46 BRCMF_FW_ENTRY(BRCM_CC_43235_CHIP_ID, 0x00000008, 43236B),
47 BRCMF_FW_ENTRY(BRCM_CC_43236_CHIP_ID, 0x00000008, 43236B),
48 BRCMF_FW_ENTRY(BRCM_CC_43238_CHIP_ID, 0x00000008, 43236B),
49 BRCMF_FW_ENTRY(BRCM_CC_43242_CHIP_ID, 0xFFFFFFFF, 43242A),
50 BRCMF_FW_ENTRY(BRCM_CC_43566_CHIP_ID, 0xFFFFFFFF, 43569),
51 BRCMF_FW_ENTRY(BRCM_CC_43569_CHIP_ID, 0xFFFFFFFF, 43569),
52 BRCMF_FW_ENTRY(CY_CC_4373_CHIP_ID, 0xFFFFFFFF, 4373)
53 };
54
55 #define TRX_MAGIC 0x30524448
56 #define TRX_MAX_OFFSET 3
57 #define TRX_UNCOMP_IMAGE 0x20
58 #define TRX_RDL_CHUNK 1500
59 #define TRX_OFFSETS_DLFWLEN_IDX 0
60
61
62 #define DL_GETSTATE 0
63 #define DL_CHECK_CRC 1
64 #define DL_GO 2
65 #define DL_START 3
66 #define DL_REBOOT 4
67 #define DL_GETVER 5
68 #define DL_GO_PROTECTED 6
69
70
71
72
73 #define DL_EXEC 7
74 #define DL_RESETCFG 8
75
76
77 #define DL_DEFER_RESP_OK 9
78
79
80
81
82 #define DL_WAITING 0
83 #define DL_READY 1
84
85
86 #define DL_BAD_HDR 2
87 #define DL_BAD_CRC 3
88 #define DL_RUNNABLE 4
89 #define DL_START_FAIL 5
90 #define DL_NVRAM_TOOBIG 6
91
92
93 #define DL_IMAGE_TOOBIG 7
94
95
96 struct trx_header_le {
97 __le32 magic;
98 __le32 len;
99 __le32 crc32;
100 __le32 flag_version;
101 __le32 offsets[TRX_MAX_OFFSET];
102
103
104 };
105
106 struct rdl_state_le {
107 __le32 state;
108 __le32 bytes;
109 };
110
111 struct bootrom_id_le {
112 __le32 chip;
113 __le32 chiprev;
114 __le32 ramsize;
115 __le32 remapbase;
116 __le32 boardtype;
117 __le32 boardrev;
118 };
119
120 struct brcmf_usb_image {
121 struct list_head list;
122 s8 *fwname;
123 u8 *image;
124 int image_len;
125 };
126
127 struct brcmf_usbdev_info {
128 struct brcmf_usbdev bus_pub;
129 spinlock_t qlock;
130 struct list_head rx_freeq;
131 struct list_head rx_postq;
132 struct list_head tx_freeq;
133 struct list_head tx_postq;
134 uint rx_pipe, tx_pipe;
135
136 int rx_low_watermark;
137 int tx_low_watermark;
138 int tx_high_watermark;
139 int tx_freecount;
140 bool tx_flowblock;
141 spinlock_t tx_flowblock_lock;
142
143 struct brcmf_usbreq *tx_reqs;
144 struct brcmf_usbreq *rx_reqs;
145
146 char fw_name[BRCMF_FW_NAME_LEN];
147 const u8 *image;
148 int image_len;
149
150 struct usb_device *usbdev;
151 struct device *dev;
152 struct completion dev_init_done;
153
154 int ctl_in_pipe, ctl_out_pipe;
155 struct urb *ctl_urb;
156 struct usb_ctrlrequest ctl_write;
157 struct usb_ctrlrequest ctl_read;
158 u32 ctl_urb_actual_length;
159 int ctl_urb_status;
160 int ctl_completed;
161 wait_queue_head_t ioctl_resp_wait;
162 ulong ctl_op;
163 u8 ifnum;
164
165 struct urb *bulk_urb;
166
167 bool wowl_enabled;
168 struct brcmf_mp_device *settings;
169 };
170
171 static void brcmf_usb_rx_refill(struct brcmf_usbdev_info *devinfo,
172 struct brcmf_usbreq *req);
173
174 static struct brcmf_usbdev *brcmf_usb_get_buspub(struct device *dev)
175 {
176 struct brcmf_bus *bus_if = dev_get_drvdata(dev);
177 return bus_if->bus_priv.usb;
178 }
179
180 static struct brcmf_usbdev_info *brcmf_usb_get_businfo(struct device *dev)
181 {
182 return brcmf_usb_get_buspub(dev)->devinfo;
183 }
184
185 static int brcmf_usb_ioctl_resp_wait(struct brcmf_usbdev_info *devinfo)
186 {
187 return wait_event_timeout(devinfo->ioctl_resp_wait,
188 devinfo->ctl_completed, IOCTL_RESP_TIMEOUT);
189 }
190
191 static void brcmf_usb_ioctl_resp_wake(struct brcmf_usbdev_info *devinfo)
192 {
193 wake_up(&devinfo->ioctl_resp_wait);
194 }
195
196 static void
197 brcmf_usb_ctl_complete(struct brcmf_usbdev_info *devinfo, int type, int status)
198 {
199 brcmf_dbg(USB, "Enter, status=%d\n", status);
200
201 if (unlikely(devinfo == NULL))
202 return;
203
204 if (type == BRCMF_USB_CBCTL_READ) {
205 if (status == 0)
206 devinfo->bus_pub.stats.rx_ctlpkts++;
207 else
208 devinfo->bus_pub.stats.rx_ctlerrs++;
209 } else if (type == BRCMF_USB_CBCTL_WRITE) {
210 if (status == 0)
211 devinfo->bus_pub.stats.tx_ctlpkts++;
212 else
213 devinfo->bus_pub.stats.tx_ctlerrs++;
214 }
215
216 devinfo->ctl_urb_status = status;
217 devinfo->ctl_completed = true;
218 brcmf_usb_ioctl_resp_wake(devinfo);
219 }
220
221 static void
222 brcmf_usb_ctlread_complete(struct urb *urb)
223 {
224 struct brcmf_usbdev_info *devinfo =
225 (struct brcmf_usbdev_info *)urb->context;
226
227 brcmf_dbg(USB, "Enter\n");
228 devinfo->ctl_urb_actual_length = urb->actual_length;
229 brcmf_usb_ctl_complete(devinfo, BRCMF_USB_CBCTL_READ,
230 urb->status);
231 }
232
233 static void
234 brcmf_usb_ctlwrite_complete(struct urb *urb)
235 {
236 struct brcmf_usbdev_info *devinfo =
237 (struct brcmf_usbdev_info *)urb->context;
238
239 brcmf_dbg(USB, "Enter\n");
240 brcmf_usb_ctl_complete(devinfo, BRCMF_USB_CBCTL_WRITE,
241 urb->status);
242 }
243
244 static int
245 brcmf_usb_send_ctl(struct brcmf_usbdev_info *devinfo, u8 *buf, int len)
246 {
247 int ret;
248 u16 size;
249
250 brcmf_dbg(USB, "Enter\n");
251 if (devinfo == NULL || buf == NULL ||
252 len == 0 || devinfo->ctl_urb == NULL)
253 return -EINVAL;
254
255 size = len;
256 devinfo->ctl_write.wLength = cpu_to_le16p(&size);
257 devinfo->ctl_urb->transfer_buffer_length = size;
258 devinfo->ctl_urb_status = 0;
259 devinfo->ctl_urb_actual_length = 0;
260
261 usb_fill_control_urb(devinfo->ctl_urb,
262 devinfo->usbdev,
263 devinfo->ctl_out_pipe,
264 (unsigned char *) &devinfo->ctl_write,
265 buf, size,
266 (usb_complete_t)brcmf_usb_ctlwrite_complete,
267 devinfo);
268
269 ret = usb_submit_urb(devinfo->ctl_urb, GFP_ATOMIC);
270 if (ret < 0)
271 brcmf_err("usb_submit_urb failed %d\n", ret);
272
273 return ret;
274 }
275
276 static int
277 brcmf_usb_recv_ctl(struct brcmf_usbdev_info *devinfo, u8 *buf, int len)
278 {
279 int ret;
280 u16 size;
281
282 brcmf_dbg(USB, "Enter\n");
283 if ((devinfo == NULL) || (buf == NULL) || (len == 0)
284 || (devinfo->ctl_urb == NULL))
285 return -EINVAL;
286
287 size = len;
288 devinfo->ctl_read.wLength = cpu_to_le16p(&size);
289 devinfo->ctl_urb->transfer_buffer_length = size;
290
291 devinfo->ctl_read.bRequestType = USB_DIR_IN
292 | USB_TYPE_CLASS | USB_RECIP_INTERFACE;
293 devinfo->ctl_read.bRequest = 1;
294
295 usb_fill_control_urb(devinfo->ctl_urb,
296 devinfo->usbdev,
297 devinfo->ctl_in_pipe,
298 (unsigned char *) &devinfo->ctl_read,
299 buf, size,
300 (usb_complete_t)brcmf_usb_ctlread_complete,
301 devinfo);
302
303 ret = usb_submit_urb(devinfo->ctl_urb, GFP_ATOMIC);
304 if (ret < 0)
305 brcmf_err("usb_submit_urb failed %d\n", ret);
306
307 return ret;
308 }
309
310 static int brcmf_usb_tx_ctlpkt(struct device *dev, u8 *buf, u32 len)
311 {
312 int err = 0;
313 int timeout = 0;
314 struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(dev);
315
316 brcmf_dbg(USB, "Enter\n");
317 if (devinfo->bus_pub.state != BRCMFMAC_USB_STATE_UP)
318 return -EIO;
319
320 if (test_and_set_bit(0, &devinfo->ctl_op))
321 return -EIO;
322
323 devinfo->ctl_completed = false;
324 err = brcmf_usb_send_ctl(devinfo, buf, len);
325 if (err) {
326 brcmf_err("fail %d bytes: %d\n", err, len);
327 clear_bit(0, &devinfo->ctl_op);
328 return err;
329 }
330 timeout = brcmf_usb_ioctl_resp_wait(devinfo);
331 clear_bit(0, &devinfo->ctl_op);
332 if (!timeout) {
333 brcmf_err("Txctl wait timed out\n");
334 err = -EIO;
335 }
336 return err;
337 }
338
339 static int brcmf_usb_rx_ctlpkt(struct device *dev, u8 *buf, u32 len)
340 {
341 int err = 0;
342 int timeout = 0;
343 struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(dev);
344
345 brcmf_dbg(USB, "Enter\n");
346 if (devinfo->bus_pub.state != BRCMFMAC_USB_STATE_UP)
347 return -EIO;
348
349 if (test_and_set_bit(0, &devinfo->ctl_op))
350 return -EIO;
351
352 devinfo->ctl_completed = false;
353 err = brcmf_usb_recv_ctl(devinfo, buf, len);
354 if (err) {
355 brcmf_err("fail %d bytes: %d\n", err, len);
356 clear_bit(0, &devinfo->ctl_op);
357 return err;
358 }
359 timeout = brcmf_usb_ioctl_resp_wait(devinfo);
360 err = devinfo->ctl_urb_status;
361 clear_bit(0, &devinfo->ctl_op);
362 if (!timeout) {
363 brcmf_err("rxctl wait timed out\n");
364 err = -EIO;
365 }
366 if (!err)
367 return devinfo->ctl_urb_actual_length;
368 else
369 return err;
370 }
371
372 static struct brcmf_usbreq *brcmf_usb_deq(struct brcmf_usbdev_info *devinfo,
373 struct list_head *q, int *counter)
374 {
375 unsigned long flags;
376 struct brcmf_usbreq *req;
377 spin_lock_irqsave(&devinfo->qlock, flags);
378 if (list_empty(q)) {
379 spin_unlock_irqrestore(&devinfo->qlock, flags);
380 return NULL;
381 }
382 req = list_entry(q->next, struct brcmf_usbreq, list);
383 list_del_init(q->next);
384 if (counter)
385 (*counter)--;
386 spin_unlock_irqrestore(&devinfo->qlock, flags);
387 return req;
388
389 }
390
391 static void brcmf_usb_enq(struct brcmf_usbdev_info *devinfo,
392 struct list_head *q, struct brcmf_usbreq *req,
393 int *counter)
394 {
395 unsigned long flags;
396 spin_lock_irqsave(&devinfo->qlock, flags);
397 list_add_tail(&req->list, q);
398 if (counter)
399 (*counter)++;
400 spin_unlock_irqrestore(&devinfo->qlock, flags);
401 }
402
403 static struct brcmf_usbreq *
404 brcmf_usbdev_qinit(struct list_head *q, int qsize)
405 {
406 int i;
407 struct brcmf_usbreq *req, *reqs;
408
409 reqs = kcalloc(qsize, sizeof(struct brcmf_usbreq), GFP_ATOMIC);
410 if (reqs == NULL)
411 return NULL;
412
413 req = reqs;
414
415 for (i = 0; i < qsize; i++) {
416 req->urb = usb_alloc_urb(0, GFP_ATOMIC);
417 if (!req->urb)
418 goto fail;
419
420 INIT_LIST_HEAD(&req->list);
421 list_add_tail(&req->list, q);
422 req++;
423 }
424 return reqs;
425 fail:
426 brcmf_err("fail!\n");
427 while (!list_empty(q)) {
428 req = list_entry(q->next, struct brcmf_usbreq, list);
429 if (req)
430 usb_free_urb(req->urb);
431 list_del(q->next);
432 }
433 kfree(reqs);
434 return NULL;
435
436 }
437
438 static void brcmf_usb_free_q(struct list_head *q)
439 {
440 struct brcmf_usbreq *req, *next;
441
442 list_for_each_entry_safe(req, next, q, list) {
443 if (!req->urb) {
444 brcmf_err("bad req\n");
445 break;
446 }
447 usb_free_urb(req->urb);
448 list_del_init(&req->list);
449 }
450 }
451
452 static void brcmf_usb_del_fromq(struct brcmf_usbdev_info *devinfo,
453 struct brcmf_usbreq *req)
454 {
455 unsigned long flags;
456
457 spin_lock_irqsave(&devinfo->qlock, flags);
458 list_del_init(&req->list);
459 spin_unlock_irqrestore(&devinfo->qlock, flags);
460 }
461
462
463 static void brcmf_usb_tx_complete(struct urb *urb)
464 {
465 struct brcmf_usbreq *req = (struct brcmf_usbreq *)urb->context;
466 struct brcmf_usbdev_info *devinfo = req->devinfo;
467 unsigned long flags;
468
469 brcmf_dbg(USB, "Enter, urb->status=%d, skb=%p\n", urb->status,
470 req->skb);
471 brcmf_usb_del_fromq(devinfo, req);
472
473 brcmf_proto_bcdc_txcomplete(devinfo->dev, req->skb, urb->status == 0);
474 req->skb = NULL;
475 brcmf_usb_enq(devinfo, &devinfo->tx_freeq, req, &devinfo->tx_freecount);
476 spin_lock_irqsave(&devinfo->tx_flowblock_lock, flags);
477 if (devinfo->tx_freecount > devinfo->tx_high_watermark &&
478 devinfo->tx_flowblock) {
479 brcmf_proto_bcdc_txflowblock(devinfo->dev, false);
480 devinfo->tx_flowblock = false;
481 }
482 spin_unlock_irqrestore(&devinfo->tx_flowblock_lock, flags);
483 }
484
485 static void brcmf_usb_rx_complete(struct urb *urb)
486 {
487 struct brcmf_usbreq *req = (struct brcmf_usbreq *)urb->context;
488 struct brcmf_usbdev_info *devinfo = req->devinfo;
489 struct sk_buff *skb;
490
491 brcmf_dbg(USB, "Enter, urb->status=%d\n", urb->status);
492 brcmf_usb_del_fromq(devinfo, req);
493 skb = req->skb;
494 req->skb = NULL;
495
496
497 if (urb->status != 0 || !urb->actual_length) {
498 brcmu_pkt_buf_free_skb(skb);
499 brcmf_usb_enq(devinfo, &devinfo->rx_freeq, req, NULL);
500 return;
501 }
502
503 if (devinfo->bus_pub.state == BRCMFMAC_USB_STATE_UP) {
504 skb_put(skb, urb->actual_length);
505 brcmf_rx_frame(devinfo->dev, skb, true);
506 brcmf_usb_rx_refill(devinfo, req);
507 } else {
508 brcmu_pkt_buf_free_skb(skb);
509 brcmf_usb_enq(devinfo, &devinfo->rx_freeq, req, NULL);
510 }
511 return;
512
513 }
514
515 static void brcmf_usb_rx_refill(struct brcmf_usbdev_info *devinfo,
516 struct brcmf_usbreq *req)
517 {
518 struct sk_buff *skb;
519 int ret;
520
521 if (!req || !devinfo)
522 return;
523
524 skb = dev_alloc_skb(devinfo->bus_pub.bus_mtu);
525 if (!skb) {
526 brcmf_usb_enq(devinfo, &devinfo->rx_freeq, req, NULL);
527 return;
528 }
529 req->skb = skb;
530
531 usb_fill_bulk_urb(req->urb, devinfo->usbdev, devinfo->rx_pipe,
532 skb->data, skb_tailroom(skb), brcmf_usb_rx_complete,
533 req);
534 req->devinfo = devinfo;
535 brcmf_usb_enq(devinfo, &devinfo->rx_postq, req, NULL);
536
537 ret = usb_submit_urb(req->urb, GFP_ATOMIC);
538 if (ret) {
539 brcmf_usb_del_fromq(devinfo, req);
540 brcmu_pkt_buf_free_skb(req->skb);
541 req->skb = NULL;
542 brcmf_usb_enq(devinfo, &devinfo->rx_freeq, req, NULL);
543 }
544 return;
545 }
546
547 static void brcmf_usb_rx_fill_all(struct brcmf_usbdev_info *devinfo)
548 {
549 struct brcmf_usbreq *req;
550
551 if (devinfo->bus_pub.state != BRCMFMAC_USB_STATE_UP) {
552 brcmf_err("bus is not up=%d\n", devinfo->bus_pub.state);
553 return;
554 }
555 while ((req = brcmf_usb_deq(devinfo, &devinfo->rx_freeq, NULL)) != NULL)
556 brcmf_usb_rx_refill(devinfo, req);
557 }
558
559 static void
560 brcmf_usb_state_change(struct brcmf_usbdev_info *devinfo, int state)
561 {
562 struct brcmf_bus *bcmf_bus = devinfo->bus_pub.bus;
563
564 brcmf_dbg(USB, "Enter, current state=%d, new state=%d\n",
565 devinfo->bus_pub.state, state);
566
567 if (devinfo->bus_pub.state == state)
568 return;
569
570 devinfo->bus_pub.state = state;
571
572
573 if (state == BRCMFMAC_USB_STATE_DOWN) {
574 brcmf_dbg(USB, "DBUS is down\n");
575 brcmf_bus_change_state(bcmf_bus, BRCMF_BUS_DOWN);
576 } else if (state == BRCMFMAC_USB_STATE_UP) {
577 brcmf_dbg(USB, "DBUS is up\n");
578 brcmf_bus_change_state(bcmf_bus, BRCMF_BUS_UP);
579 } else {
580 brcmf_dbg(USB, "DBUS current state=%d\n", state);
581 }
582 }
583
584 static int brcmf_usb_tx(struct device *dev, struct sk_buff *skb)
585 {
586 struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(dev);
587 struct brcmf_usbreq *req;
588 int ret;
589 unsigned long flags;
590
591 brcmf_dbg(USB, "Enter, skb=%p\n", skb);
592 if (devinfo->bus_pub.state != BRCMFMAC_USB_STATE_UP) {
593 ret = -EIO;
594 goto fail;
595 }
596
597 req = brcmf_usb_deq(devinfo, &devinfo->tx_freeq,
598 &devinfo->tx_freecount);
599 if (!req) {
600 brcmf_err("no req to send\n");
601 ret = -ENOMEM;
602 goto fail;
603 }
604
605 req->skb = skb;
606 req->devinfo = devinfo;
607 usb_fill_bulk_urb(req->urb, devinfo->usbdev, devinfo->tx_pipe,
608 skb->data, skb->len, brcmf_usb_tx_complete, req);
609 req->urb->transfer_flags |= URB_ZERO_PACKET;
610 brcmf_usb_enq(devinfo, &devinfo->tx_postq, req, NULL);
611 ret = usb_submit_urb(req->urb, GFP_ATOMIC);
612 if (ret) {
613 brcmf_err("brcmf_usb_tx usb_submit_urb FAILED\n");
614 brcmf_usb_del_fromq(devinfo, req);
615 req->skb = NULL;
616 brcmf_usb_enq(devinfo, &devinfo->tx_freeq, req,
617 &devinfo->tx_freecount);
618 goto fail;
619 }
620
621 spin_lock_irqsave(&devinfo->tx_flowblock_lock, flags);
622 if (devinfo->tx_freecount < devinfo->tx_low_watermark &&
623 !devinfo->tx_flowblock) {
624 brcmf_proto_bcdc_txflowblock(dev, true);
625 devinfo->tx_flowblock = true;
626 }
627 spin_unlock_irqrestore(&devinfo->tx_flowblock_lock, flags);
628 return 0;
629
630 fail:
631 return ret;
632 }
633
634
635 static int brcmf_usb_up(struct device *dev)
636 {
637 struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(dev);
638
639 brcmf_dbg(USB, "Enter\n");
640 if (devinfo->bus_pub.state == BRCMFMAC_USB_STATE_UP)
641 return 0;
642
643
644 brcmf_usb_state_change(devinfo, BRCMFMAC_USB_STATE_UP);
645
646 if (devinfo->ctl_urb) {
647 devinfo->ctl_in_pipe = usb_rcvctrlpipe(devinfo->usbdev, 0);
648 devinfo->ctl_out_pipe = usb_sndctrlpipe(devinfo->usbdev, 0);
649
650
651 devinfo->ctl_write.bRequestType =
652 USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE;
653 devinfo->ctl_write.bRequest = 0;
654 devinfo->ctl_write.wValue = cpu_to_le16(0);
655 devinfo->ctl_write.wIndex = cpu_to_le16(devinfo->ifnum);
656
657
658 devinfo->ctl_read.bRequestType =
659 USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE;
660 devinfo->ctl_read.bRequest = 1;
661 devinfo->ctl_read.wValue = cpu_to_le16(0);
662 devinfo->ctl_read.wIndex = cpu_to_le16(devinfo->ifnum);
663 }
664 brcmf_usb_rx_fill_all(devinfo);
665 return 0;
666 }
667
668 static void brcmf_cancel_all_urbs(struct brcmf_usbdev_info *devinfo)
669 {
670 int i;
671
672 if (devinfo->ctl_urb)
673 usb_kill_urb(devinfo->ctl_urb);
674 if (devinfo->bulk_urb)
675 usb_kill_urb(devinfo->bulk_urb);
676 if (devinfo->tx_reqs)
677 for (i = 0; i < devinfo->bus_pub.ntxq; i++)
678 usb_kill_urb(devinfo->tx_reqs[i].urb);
679 if (devinfo->rx_reqs)
680 for (i = 0; i < devinfo->bus_pub.nrxq; i++)
681 usb_kill_urb(devinfo->rx_reqs[i].urb);
682 }
683
684 static void brcmf_usb_down(struct device *dev)
685 {
686 struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(dev);
687
688 brcmf_dbg(USB, "Enter\n");
689 if (devinfo == NULL)
690 return;
691
692 if (devinfo->bus_pub.state == BRCMFMAC_USB_STATE_DOWN)
693 return;
694
695 brcmf_usb_state_change(devinfo, BRCMFMAC_USB_STATE_DOWN);
696
697 brcmf_cancel_all_urbs(devinfo);
698 }
699
700 static void
701 brcmf_usb_sync_complete(struct urb *urb)
702 {
703 struct brcmf_usbdev_info *devinfo =
704 (struct brcmf_usbdev_info *)urb->context;
705
706 devinfo->ctl_completed = true;
707 brcmf_usb_ioctl_resp_wake(devinfo);
708 }
709
710 static int brcmf_usb_dl_cmd(struct brcmf_usbdev_info *devinfo, u8 cmd,
711 void *buffer, int buflen)
712 {
713 int ret;
714 char *tmpbuf;
715 u16 size;
716
717 if ((!devinfo) || (devinfo->ctl_urb == NULL))
718 return -EINVAL;
719
720 tmpbuf = kmalloc(buflen, GFP_ATOMIC);
721 if (!tmpbuf)
722 return -ENOMEM;
723
724 size = buflen;
725 devinfo->ctl_urb->transfer_buffer_length = size;
726
727 devinfo->ctl_read.wLength = cpu_to_le16p(&size);
728 devinfo->ctl_read.bRequestType = USB_DIR_IN | USB_TYPE_VENDOR |
729 USB_RECIP_INTERFACE;
730 devinfo->ctl_read.bRequest = cmd;
731
732 usb_fill_control_urb(devinfo->ctl_urb,
733 devinfo->usbdev,
734 usb_rcvctrlpipe(devinfo->usbdev, 0),
735 (unsigned char *) &devinfo->ctl_read,
736 (void *) tmpbuf, size,
737 (usb_complete_t)brcmf_usb_sync_complete, devinfo);
738
739 devinfo->ctl_completed = false;
740 ret = usb_submit_urb(devinfo->ctl_urb, GFP_ATOMIC);
741 if (ret < 0) {
742 brcmf_err("usb_submit_urb failed %d\n", ret);
743 goto finalize;
744 }
745
746 if (!brcmf_usb_ioctl_resp_wait(devinfo)) {
747 usb_kill_urb(devinfo->ctl_urb);
748 ret = -ETIMEDOUT;
749 } else {
750 memcpy(buffer, tmpbuf, buflen);
751 }
752
753 finalize:
754 kfree(tmpbuf);
755 return ret;
756 }
757
758 static bool
759 brcmf_usb_dlneeded(struct brcmf_usbdev_info *devinfo)
760 {
761 struct bootrom_id_le id;
762 u32 chipid, chiprev;
763
764 brcmf_dbg(USB, "Enter\n");
765
766 if (devinfo == NULL)
767 return false;
768
769
770 id.chip = cpu_to_le32(0xDEAD);
771 brcmf_usb_dl_cmd(devinfo, DL_GETVER, &id, sizeof(id));
772
773 chipid = le32_to_cpu(id.chip);
774 chiprev = le32_to_cpu(id.chiprev);
775
776 if ((chipid & 0x4300) == 0x4300)
777 brcmf_dbg(USB, "chip %x rev 0x%x\n", chipid, chiprev);
778 else
779 brcmf_dbg(USB, "chip %d rev 0x%x\n", chipid, chiprev);
780 if (chipid == BRCMF_POSTBOOT_ID) {
781 brcmf_dbg(USB, "firmware already downloaded\n");
782 brcmf_usb_dl_cmd(devinfo, DL_RESETCFG, &id, sizeof(id));
783 return false;
784 } else {
785 devinfo->bus_pub.devid = chipid;
786 devinfo->bus_pub.chiprev = chiprev;
787 }
788 return true;
789 }
790
791 static int
792 brcmf_usb_resetcfg(struct brcmf_usbdev_info *devinfo)
793 {
794 struct bootrom_id_le id;
795 u32 loop_cnt;
796 int err;
797
798 brcmf_dbg(USB, "Enter\n");
799
800 loop_cnt = 0;
801 do {
802 mdelay(BRCMF_USB_RESET_GETVER_SPINWAIT);
803 loop_cnt++;
804 id.chip = cpu_to_le32(0xDEAD);
805 err = brcmf_usb_dl_cmd(devinfo, DL_GETVER, &id, sizeof(id));
806 if ((err) && (err != -ETIMEDOUT))
807 return err;
808 if (id.chip == cpu_to_le32(BRCMF_POSTBOOT_ID))
809 break;
810 } while (loop_cnt < BRCMF_USB_RESET_GETVER_LOOP_CNT);
811
812 if (id.chip == cpu_to_le32(BRCMF_POSTBOOT_ID)) {
813 brcmf_dbg(USB, "postboot chip 0x%x/rev 0x%x\n",
814 le32_to_cpu(id.chip), le32_to_cpu(id.chiprev));
815
816 brcmf_usb_dl_cmd(devinfo, DL_RESETCFG, &id, sizeof(id));
817 return 0;
818 } else {
819 brcmf_err("Cannot talk to Dongle. Firmware is not UP, %d ms\n",
820 BRCMF_USB_RESET_GETVER_SPINWAIT * loop_cnt);
821 return -EINVAL;
822 }
823 }
824
825
826 static int
827 brcmf_usb_dl_send_bulk(struct brcmf_usbdev_info *devinfo, void *buffer, int len)
828 {
829 int ret;
830
831 if ((devinfo == NULL) || (devinfo->bulk_urb == NULL))
832 return -EINVAL;
833
834
835 usb_fill_bulk_urb(devinfo->bulk_urb, devinfo->usbdev,
836 devinfo->tx_pipe, buffer, len,
837 (usb_complete_t)brcmf_usb_sync_complete, devinfo);
838
839 devinfo->bulk_urb->transfer_flags |= URB_ZERO_PACKET;
840
841 devinfo->ctl_completed = false;
842 ret = usb_submit_urb(devinfo->bulk_urb, GFP_ATOMIC);
843 if (ret) {
844 brcmf_err("usb_submit_urb failed %d\n", ret);
845 return ret;
846 }
847 ret = brcmf_usb_ioctl_resp_wait(devinfo);
848 return (ret == 0);
849 }
850
851 static int
852 brcmf_usb_dl_writeimage(struct brcmf_usbdev_info *devinfo, u8 *fw, int fwlen)
853 {
854 unsigned int sendlen, sent, dllen;
855 char *bulkchunk = NULL, *dlpos;
856 struct rdl_state_le state;
857 u32 rdlstate, rdlbytes;
858 int err = 0;
859
860 brcmf_dbg(USB, "Enter, fw %p, len %d\n", fw, fwlen);
861
862 bulkchunk = kmalloc(TRX_RDL_CHUNK, GFP_ATOMIC);
863 if (bulkchunk == NULL) {
864 err = -ENOMEM;
865 goto fail;
866 }
867
868
869 brcmf_usb_dl_cmd(devinfo, DL_START, &state, sizeof(state));
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) < TRX_RDL_CHUNK)
890 sendlen = dllen-sent;
891 else
892 sendlen = TRX_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 err = brcmf_usb_dl_cmd(devinfo, DL_GETSTATE, &state,
914 sizeof(state));
915 if (err) {
916 brcmf_err("DL_GETSTATE Failed\n");
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
932 fail:
933 kfree(bulkchunk);
934 brcmf_dbg(USB, "Exit, err=%d\n", err);
935 return err;
936 }
937
938 static 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
960 static 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 state.state = 0;
973 brcmf_usb_dl_cmd(devinfo, DL_GETSTATE, &state, sizeof(state));
974
975
976 if (state.state == cpu_to_le32(DL_RUNNABLE)) {
977 if (brcmf_usb_dl_cmd(devinfo, DL_GO, &state, sizeof(state)))
978 return -ENODEV;
979 if (brcmf_usb_resetcfg(devinfo))
980 return -ENODEV;
981
982 } else {
983 brcmf_err("Dongle not runnable\n");
984 return -EINVAL;
985 }
986 brcmf_dbg(USB, "Exit\n");
987 return 0;
988 }
989
990 static int
991 brcmf_usb_fw_download(struct brcmf_usbdev_info *devinfo)
992 {
993 int err;
994
995 brcmf_dbg(USB, "Enter\n");
996 if (devinfo == NULL)
997 return -ENODEV;
998
999 if (!devinfo->image) {
1000 brcmf_err("No firmware!\n");
1001 return -ENOENT;
1002 }
1003
1004 err = brcmf_usb_dlstart(devinfo,
1005 (u8 *)devinfo->image, devinfo->image_len);
1006 if (err == 0)
1007 err = brcmf_usb_dlrun(devinfo);
1008 return err;
1009 }
1010
1011
1012 static void brcmf_usb_detach(struct brcmf_usbdev_info *devinfo)
1013 {
1014 brcmf_dbg(USB, "Enter, devinfo %p\n", devinfo);
1015
1016
1017 brcmf_usb_free_q(&devinfo->rx_freeq);
1018 brcmf_usb_free_q(&devinfo->tx_freeq);
1019
1020 usb_free_urb(devinfo->ctl_urb);
1021 usb_free_urb(devinfo->bulk_urb);
1022
1023 kfree(devinfo->tx_reqs);
1024 kfree(devinfo->rx_reqs);
1025
1026 if (devinfo->settings)
1027 brcmf_release_module_param(devinfo->settings);
1028 }
1029
1030
1031 static int check_file(const u8 *headers)
1032 {
1033 struct trx_header_le *trx;
1034 int actual_len = -1;
1035
1036 brcmf_dbg(USB, "Enter\n");
1037
1038 trx = (struct trx_header_le *) headers;
1039 if (trx->magic != cpu_to_le32(TRX_MAGIC))
1040 return -1;
1041
1042 headers += sizeof(struct trx_header_le);
1043
1044 if (le32_to_cpu(trx->flag_version) & TRX_UNCOMP_IMAGE) {
1045 actual_len = le32_to_cpu(trx->offsets[TRX_OFFSETS_DLFWLEN_IDX]);
1046 return actual_len + sizeof(struct trx_header_le);
1047 }
1048 return -1;
1049 }
1050
1051
1052 static
1053 struct brcmf_usbdev *brcmf_usb_attach(struct brcmf_usbdev_info *devinfo,
1054 int nrxq, int ntxq)
1055 {
1056 brcmf_dbg(USB, "Enter\n");
1057
1058 devinfo->bus_pub.nrxq = nrxq;
1059 devinfo->rx_low_watermark = nrxq / 2;
1060 devinfo->bus_pub.devinfo = devinfo;
1061 devinfo->bus_pub.ntxq = ntxq;
1062 devinfo->bus_pub.state = BRCMFMAC_USB_STATE_DOWN;
1063
1064
1065 devinfo->tx_low_watermark = ntxq / 4;
1066 devinfo->tx_high_watermark = devinfo->tx_low_watermark * 3;
1067 devinfo->bus_pub.bus_mtu = BRCMF_USB_MAX_PKT_SIZE;
1068
1069
1070 init_waitqueue_head(&devinfo->ioctl_resp_wait);
1071
1072
1073 spin_lock_init(&devinfo->qlock);
1074 spin_lock_init(&devinfo->tx_flowblock_lock);
1075
1076 INIT_LIST_HEAD(&devinfo->rx_freeq);
1077 INIT_LIST_HEAD(&devinfo->rx_postq);
1078
1079 INIT_LIST_HEAD(&devinfo->tx_freeq);
1080 INIT_LIST_HEAD(&devinfo->tx_postq);
1081
1082 devinfo->tx_flowblock = false;
1083
1084 devinfo->rx_reqs = brcmf_usbdev_qinit(&devinfo->rx_freeq, nrxq);
1085 if (!devinfo->rx_reqs)
1086 goto error;
1087
1088 devinfo->tx_reqs = brcmf_usbdev_qinit(&devinfo->tx_freeq, ntxq);
1089 if (!devinfo->tx_reqs)
1090 goto error;
1091 devinfo->tx_freecount = ntxq;
1092
1093 devinfo->ctl_urb = usb_alloc_urb(0, GFP_ATOMIC);
1094 if (!devinfo->ctl_urb)
1095 goto error;
1096 devinfo->bulk_urb = usb_alloc_urb(0, GFP_ATOMIC);
1097 if (!devinfo->bulk_urb)
1098 goto error;
1099
1100 return &devinfo->bus_pub;
1101
1102 error:
1103 brcmf_err("failed!\n");
1104 brcmf_usb_detach(devinfo);
1105 return NULL;
1106 }
1107
1108 static void brcmf_usb_wowl_config(struct device *dev, bool enabled)
1109 {
1110 struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(dev);
1111
1112 brcmf_dbg(USB, "Configuring WOWL, enabled=%d\n", enabled);
1113 devinfo->wowl_enabled = enabled;
1114 if (enabled)
1115 device_set_wakeup_enable(devinfo->dev, true);
1116 else
1117 device_set_wakeup_enable(devinfo->dev, false);
1118 }
1119
1120 static
1121 int brcmf_usb_get_fwname(struct device *dev, const char *ext, u8 *fw_name)
1122 {
1123 struct brcmf_bus *bus = dev_get_drvdata(dev);
1124 struct brcmf_fw_request *fwreq;
1125 struct brcmf_fw_name fwnames[] = {
1126 { ext, fw_name },
1127 };
1128
1129 fwreq = brcmf_fw_alloc_request(bus->chip, bus->chiprev,
1130 brcmf_usb_fwnames,
1131 ARRAY_SIZE(brcmf_usb_fwnames),
1132 fwnames, ARRAY_SIZE(fwnames));
1133 if (!fwreq)
1134 return -ENOMEM;
1135
1136 kfree(fwreq);
1137 return 0;
1138 }
1139
1140 static const struct brcmf_bus_ops brcmf_usb_bus_ops = {
1141 .preinit = brcmf_usb_up,
1142 .stop = brcmf_usb_down,
1143 .txdata = brcmf_usb_tx,
1144 .txctl = brcmf_usb_tx_ctlpkt,
1145 .rxctl = brcmf_usb_rx_ctlpkt,
1146 .wowl_config = brcmf_usb_wowl_config,
1147 .get_fwname = brcmf_usb_get_fwname,
1148 };
1149
1150 #define BRCMF_USB_FW_CODE 0
1151
1152 static void brcmf_usb_probe_phase2(struct device *dev, int ret,
1153 struct brcmf_fw_request *fwreq)
1154 {
1155 struct brcmf_bus *bus = dev_get_drvdata(dev);
1156 struct brcmf_usbdev_info *devinfo = bus->bus_priv.usb->devinfo;
1157 const struct firmware *fw;
1158
1159 if (ret)
1160 goto error;
1161
1162 brcmf_dbg(USB, "Start fw downloading\n");
1163
1164 fw = fwreq->items[BRCMF_USB_FW_CODE].binary;
1165 kfree(fwreq);
1166
1167 ret = check_file(fw->data);
1168 if (ret < 0) {
1169 brcmf_err("invalid firmware\n");
1170 release_firmware(fw);
1171 goto error;
1172 }
1173
1174 devinfo->image = fw->data;
1175 devinfo->image_len = fw->size;
1176
1177 ret = brcmf_usb_fw_download(devinfo);
1178 release_firmware(fw);
1179 if (ret)
1180 goto error;
1181
1182 ret = brcmf_alloc(devinfo->dev, devinfo->settings);
1183 if (ret)
1184 goto error;
1185
1186
1187 ret = brcmf_attach(devinfo->dev);
1188 if (ret)
1189 goto error;
1190
1191 complete(&devinfo->dev_init_done);
1192 return;
1193 error:
1194 brcmf_dbg(TRACE, "failed: dev=%s, err=%d\n", dev_name(dev), ret);
1195 complete(&devinfo->dev_init_done);
1196 device_release_driver(dev);
1197 }
1198
1199 static struct brcmf_fw_request *
1200 brcmf_usb_prepare_fw_request(struct brcmf_usbdev_info *devinfo)
1201 {
1202 struct brcmf_fw_request *fwreq;
1203 struct brcmf_fw_name fwnames[] = {
1204 { ".bin", devinfo->fw_name },
1205 };
1206
1207 fwreq = brcmf_fw_alloc_request(devinfo->bus_pub.devid,
1208 devinfo->bus_pub.chiprev,
1209 brcmf_usb_fwnames,
1210 ARRAY_SIZE(brcmf_usb_fwnames),
1211 fwnames, ARRAY_SIZE(fwnames));
1212 if (!fwreq)
1213 return NULL;
1214
1215 fwreq->items[BRCMF_USB_FW_CODE].type = BRCMF_FW_TYPE_BINARY;
1216
1217 return fwreq;
1218 }
1219
1220 static int brcmf_usb_probe_cb(struct brcmf_usbdev_info *devinfo)
1221 {
1222 struct brcmf_bus *bus = NULL;
1223 struct brcmf_usbdev *bus_pub = NULL;
1224 struct device *dev = devinfo->dev;
1225 struct brcmf_fw_request *fwreq;
1226 int ret;
1227
1228 brcmf_dbg(USB, "Enter\n");
1229 bus_pub = brcmf_usb_attach(devinfo, BRCMF_USB_NRXQ, BRCMF_USB_NTXQ);
1230 if (!bus_pub)
1231 return -ENODEV;
1232
1233 bus = kzalloc(sizeof(struct brcmf_bus), GFP_ATOMIC);
1234 if (!bus) {
1235 ret = -ENOMEM;
1236 goto fail;
1237 }
1238
1239 bus->dev = dev;
1240 bus_pub->bus = bus;
1241 bus->bus_priv.usb = bus_pub;
1242 dev_set_drvdata(dev, bus);
1243 bus->ops = &brcmf_usb_bus_ops;
1244 bus->proto_type = BRCMF_PROTO_BCDC;
1245 bus->always_use_fws_queue = true;
1246 #ifdef CONFIG_PM
1247 bus->wowl_supported = true;
1248 #endif
1249
1250 devinfo->settings = brcmf_get_module_param(bus->dev, BRCMF_BUSTYPE_USB,
1251 bus_pub->devid,
1252 bus_pub->chiprev);
1253 if (!devinfo->settings) {
1254 ret = -ENOMEM;
1255 goto fail;
1256 }
1257
1258 if (!brcmf_usb_dlneeded(devinfo)) {
1259 ret = brcmf_alloc(devinfo->dev, devinfo->settings);
1260 if (ret)
1261 goto fail;
1262 ret = brcmf_attach(devinfo->dev);
1263 if (ret)
1264 goto fail;
1265
1266 complete(&devinfo->dev_init_done);
1267 return 0;
1268 }
1269 bus->chip = bus_pub->devid;
1270 bus->chiprev = bus_pub->chiprev;
1271
1272 fwreq = brcmf_usb_prepare_fw_request(devinfo);
1273 if (!fwreq) {
1274 ret = -ENOMEM;
1275 goto fail;
1276 }
1277
1278
1279 ret = brcmf_fw_get_firmwares(dev, fwreq, brcmf_usb_probe_phase2);
1280 if (ret) {
1281 brcmf_err("firmware request failed: %d\n", ret);
1282 kfree(fwreq);
1283 goto fail;
1284 }
1285
1286 return 0;
1287
1288 fail:
1289
1290 brcmf_free(devinfo->dev);
1291 kfree(bus);
1292 brcmf_usb_detach(devinfo);
1293 return ret;
1294 }
1295
1296 static void
1297 brcmf_usb_disconnect_cb(struct brcmf_usbdev_info *devinfo)
1298 {
1299 if (!devinfo)
1300 return;
1301 brcmf_dbg(USB, "Enter, bus_pub %p\n", devinfo);
1302
1303 brcmf_detach(devinfo->dev);
1304 brcmf_free(devinfo->dev);
1305 kfree(devinfo->bus_pub.bus);
1306 brcmf_usb_detach(devinfo);
1307 }
1308
1309 static int
1310 brcmf_usb_probe(struct usb_interface *intf, const struct usb_device_id *id)
1311 {
1312 struct usb_device *usb = interface_to_usbdev(intf);
1313 struct brcmf_usbdev_info *devinfo;
1314 struct usb_interface_descriptor *desc;
1315 struct usb_endpoint_descriptor *endpoint;
1316 int ret = 0;
1317 u32 num_of_eps;
1318 u8 endpoint_num, ep;
1319
1320 brcmf_dbg(USB, "Enter 0x%04x:0x%04x\n", id->idVendor, id->idProduct);
1321
1322 devinfo = kzalloc(sizeof(*devinfo), GFP_ATOMIC);
1323 if (devinfo == NULL)
1324 return -ENOMEM;
1325
1326 devinfo->usbdev = usb;
1327 devinfo->dev = &usb->dev;
1328
1329
1330
1331 init_completion(&devinfo->dev_init_done);
1332
1333 usb_set_intfdata(intf, devinfo);
1334
1335
1336 if (usb->descriptor.bNumConfigurations != 1) {
1337 brcmf_err("Number of configurations: %d not supported\n",
1338 usb->descriptor.bNumConfigurations);
1339 ret = -ENODEV;
1340 goto fail;
1341 }
1342
1343 if ((usb->descriptor.bDeviceClass != USB_CLASS_VENDOR_SPEC) &&
1344 (usb->descriptor.bDeviceClass != USB_CLASS_MISC) &&
1345 (usb->descriptor.bDeviceClass != USB_CLASS_WIRELESS_CONTROLLER)) {
1346 brcmf_err("Device class: 0x%x not supported\n",
1347 usb->descriptor.bDeviceClass);
1348 ret = -ENODEV;
1349 goto fail;
1350 }
1351
1352 desc = &intf->cur_altsetting->desc;
1353 if ((desc->bInterfaceClass != USB_CLASS_VENDOR_SPEC) ||
1354 (desc->bInterfaceSubClass != 2) ||
1355 (desc->bInterfaceProtocol != 0xff)) {
1356 brcmf_err("non WLAN interface %d: 0x%x:0x%x:0x%x\n",
1357 desc->bInterfaceNumber, desc->bInterfaceClass,
1358 desc->bInterfaceSubClass, desc->bInterfaceProtocol);
1359 ret = -ENODEV;
1360 goto fail;
1361 }
1362
1363 num_of_eps = desc->bNumEndpoints;
1364 for (ep = 0; ep < num_of_eps; ep++) {
1365 endpoint = &intf->cur_altsetting->endpoint[ep].desc;
1366 endpoint_num = usb_endpoint_num(endpoint);
1367 if (!usb_endpoint_xfer_bulk(endpoint))
1368 continue;
1369 if (usb_endpoint_dir_in(endpoint)) {
1370 if (!devinfo->rx_pipe)
1371 devinfo->rx_pipe =
1372 usb_rcvbulkpipe(usb, endpoint_num);
1373 } else {
1374 if (!devinfo->tx_pipe)
1375 devinfo->tx_pipe =
1376 usb_sndbulkpipe(usb, endpoint_num);
1377 }
1378 }
1379 if (devinfo->rx_pipe == 0) {
1380 brcmf_err("No RX (in) Bulk EP found\n");
1381 ret = -ENODEV;
1382 goto fail;
1383 }
1384 if (devinfo->tx_pipe == 0) {
1385 brcmf_err("No TX (out) Bulk EP found\n");
1386 ret = -ENODEV;
1387 goto fail;
1388 }
1389
1390 devinfo->ifnum = desc->bInterfaceNumber;
1391
1392 if (usb->speed == USB_SPEED_SUPER_PLUS)
1393 brcmf_dbg(USB, "Broadcom super speed plus USB WLAN interface detected\n");
1394 else if (usb->speed == USB_SPEED_SUPER)
1395 brcmf_dbg(USB, "Broadcom super speed USB WLAN interface detected\n");
1396 else if (usb->speed == USB_SPEED_HIGH)
1397 brcmf_dbg(USB, "Broadcom high speed USB WLAN interface detected\n");
1398 else
1399 brcmf_dbg(USB, "Broadcom full speed USB WLAN interface detected\n");
1400
1401 ret = brcmf_usb_probe_cb(devinfo);
1402 if (ret)
1403 goto fail;
1404
1405
1406 return 0;
1407
1408 fail:
1409 complete(&devinfo->dev_init_done);
1410 kfree(devinfo);
1411 usb_set_intfdata(intf, NULL);
1412 return ret;
1413 }
1414
1415 static void
1416 brcmf_usb_disconnect(struct usb_interface *intf)
1417 {
1418 struct brcmf_usbdev_info *devinfo;
1419
1420 brcmf_dbg(USB, "Enter\n");
1421 devinfo = (struct brcmf_usbdev_info *)usb_get_intfdata(intf);
1422
1423 if (devinfo) {
1424 wait_for_completion(&devinfo->dev_init_done);
1425
1426
1427
1428 if (!usb_get_intfdata(intf))
1429 goto done;
1430
1431 brcmf_usb_disconnect_cb(devinfo);
1432 kfree(devinfo);
1433 }
1434 done:
1435 brcmf_dbg(USB, "Exit\n");
1436 }
1437
1438
1439
1440
1441 static int brcmf_usb_suspend(struct usb_interface *intf, pm_message_t state)
1442 {
1443 struct usb_device *usb = interface_to_usbdev(intf);
1444 struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(&usb->dev);
1445
1446 brcmf_dbg(USB, "Enter\n");
1447 devinfo->bus_pub.state = BRCMFMAC_USB_STATE_SLEEP;
1448 if (devinfo->wowl_enabled) {
1449 brcmf_cancel_all_urbs(devinfo);
1450 } else {
1451 brcmf_detach(&usb->dev);
1452 brcmf_free(&usb->dev);
1453 }
1454 return 0;
1455 }
1456
1457
1458
1459
1460 static int brcmf_usb_resume(struct usb_interface *intf)
1461 {
1462 struct usb_device *usb = interface_to_usbdev(intf);
1463 struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(&usb->dev);
1464
1465 brcmf_dbg(USB, "Enter\n");
1466 if (!devinfo->wowl_enabled) {
1467 int err;
1468
1469 err = brcmf_alloc(&usb->dev, devinfo->settings);
1470 if (err)
1471 return err;
1472
1473 err = brcmf_attach(devinfo->dev);
1474 if (err) {
1475 brcmf_free(devinfo->dev);
1476 return err;
1477 }
1478 }
1479
1480 devinfo->bus_pub.state = BRCMFMAC_USB_STATE_UP;
1481 brcmf_usb_rx_fill_all(devinfo);
1482 return 0;
1483 }
1484
1485 static int brcmf_usb_reset_resume(struct usb_interface *intf)
1486 {
1487 struct usb_device *usb = interface_to_usbdev(intf);
1488 struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(&usb->dev);
1489 struct brcmf_fw_request *fwreq;
1490 int ret;
1491
1492 brcmf_dbg(USB, "Enter\n");
1493
1494 fwreq = brcmf_usb_prepare_fw_request(devinfo);
1495 if (!fwreq)
1496 return -ENOMEM;
1497
1498 ret = brcmf_fw_get_firmwares(&usb->dev, fwreq, brcmf_usb_probe_phase2);
1499 if (ret < 0)
1500 kfree(fwreq);
1501
1502 return ret;
1503 }
1504
1505 #define BRCMF_USB_DEVICE(dev_id) \
1506 { USB_DEVICE(BRCM_USB_VENDOR_ID_BROADCOM, dev_id) }
1507
1508 #define LINKSYS_USB_DEVICE(dev_id) \
1509 { USB_DEVICE(BRCM_USB_VENDOR_ID_LINKSYS, dev_id) }
1510
1511 #define CYPRESS_USB_DEVICE(dev_id) \
1512 { USB_DEVICE(CY_USB_VENDOR_ID_CYPRESS, dev_id) }
1513
1514 static const struct usb_device_id brcmf_usb_devid_table[] = {
1515 BRCMF_USB_DEVICE(BRCM_USB_43143_DEVICE_ID),
1516 BRCMF_USB_DEVICE(BRCM_USB_43236_DEVICE_ID),
1517 BRCMF_USB_DEVICE(BRCM_USB_43242_DEVICE_ID),
1518 BRCMF_USB_DEVICE(BRCM_USB_43569_DEVICE_ID),
1519 LINKSYS_USB_DEVICE(BRCM_USB_43235_LINKSYS_DEVICE_ID),
1520 CYPRESS_USB_DEVICE(CY_USB_4373_DEVICE_ID),
1521 { USB_DEVICE(BRCM_USB_VENDOR_ID_LG, BRCM_USB_43242_LG_DEVICE_ID) },
1522
1523 BRCMF_USB_DEVICE(BRCM_USB_BCMFW_DEVICE_ID),
1524 CYPRESS_USB_DEVICE(BRCM_USB_BCMFW_DEVICE_ID),
1525 { }
1526 };
1527
1528 MODULE_DEVICE_TABLE(usb, brcmf_usb_devid_table);
1529
1530 static struct usb_driver brcmf_usbdrvr = {
1531 .name = KBUILD_MODNAME,
1532 .probe = brcmf_usb_probe,
1533 .disconnect = brcmf_usb_disconnect,
1534 .id_table = brcmf_usb_devid_table,
1535 .suspend = brcmf_usb_suspend,
1536 .resume = brcmf_usb_resume,
1537 .reset_resume = brcmf_usb_reset_resume,
1538 .disable_hub_initiated_lpm = 1,
1539 };
1540
1541 static int brcmf_usb_reset_device(struct device *dev, void *notused)
1542 {
1543
1544
1545
1546 brcmf_dev_reset(dev->parent);
1547 return 0;
1548 }
1549
1550 void brcmf_usb_exit(void)
1551 {
1552 struct device_driver *drv = &brcmf_usbdrvr.drvwrap.driver;
1553 int ret;
1554
1555 brcmf_dbg(USB, "Enter\n");
1556 ret = driver_for_each_device(drv, NULL, NULL,
1557 brcmf_usb_reset_device);
1558 usb_deregister(&brcmf_usbdrvr);
1559 }
1560
1561 void brcmf_usb_register(void)
1562 {
1563 int ret;
1564
1565 brcmf_dbg(USB, "Enter\n");
1566 ret = usb_register(&brcmf_usbdrvr);
1567 if (ret)
1568 brcmf_err("usb_register failed %d\n", ret);
1569 }