]> git.proxmox.com Git - mirror_ubuntu-artful-kernel.git/blame - drivers/net/wireless/brcm80211/brcmfmac/usb.c
projects / mirror_ubuntu-artful-kernel.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
brcmfmac: error messages should not be suppressed
[mirror_ubuntu-artful-kernel.git] / drivers / net / wireless / brcm80211 / brcmfmac / usb.c
CommitLineData
71bb244b
AS		 1/*
2 * Copyright (c) 2011 Broadcom Corporation
3 *
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
11 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
13 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
14 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 */
16
71bb244b
AS		 17#include <linux/kernel.h>
18#include <linux/module.h>
71bb244b
AS		 19#include <linux/firmware.h>
20#include <linux/usb.h>
e2ff0498 21#include <linux/vmalloc.h>
71bb244b 22
71bb244b
AS		 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
83bc9c31
HM		 33#define BRCMF_USB_RESET_GETVER_SPINWAIT 100 /* in unit of ms */
34#define BRCMF_USB_RESET_GETVER_LOOP_CNT 10
71bb244b
AS		 35
36#define BRCMF_POSTBOOT_ID 0xA123 /* ID to detect if dongle
37 has boot up */
71bb244b
AS		 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
70f0822c 54#define BRCMF_USB_43143_FW_NAME "brcm/brcmfmac43143.bin"
fda82417 55#define BRCMF_USB_43236_FW_NAME "brcm/brcmfmac43236b.bin"
1212d370 56#define BRCMF_USB_43242_FW_NAME "brcm/brcmfmac43242a.bin"
71bb244b 57
71bb244b 58struct brcmf_usb_image {
803599d4
HM		 59 struct list_head list;
60 s8 *fwname;
61 u8 *image;
62 int image_len;
71bb244b 63};
803599d4 64static struct list_head fw_image_list;
71bb244b
AS		 65
66struct intr_transfer_buf {
67 u32 notification;
68 u32 reserved;
69};
70
71struct brcmf_usbdev_info {
72 struct brcmf_usbdev bus_pub; /* MUST BE FIRST */
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;
71bb244b
AS		 78 uint rx_pipe, tx_pipe, intr_pipe, rx_pipe2;
79
71bb244b
AS		 80 int rx_low_watermark;
81 int tx_low_watermark;
82 int tx_high_watermark;
c6ab4294
HM		 83 int tx_freecount;
84 bool tx_flowblock;
71bb244b
AS		 85
86 struct brcmf_usbreq *tx_reqs;
87 struct brcmf_usbreq *rx_reqs;
88
89 u8 *image; /* buffer for combine fw and nvram */
90 int image_len;
91
71bb244b
AS		 92 struct usb_device *usbdev;
93 struct device *dev;
71bb244b
AS		 94
95 int ctl_in_pipe, ctl_out_pipe;
96 struct urb *ctl_urb; /* URB for control endpoint */
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;
71bb244b
AS		 103 ulong ctl_op;
104
71bb244b
AS		 105 struct urb *bulk_urb; /* used for FW download */
106 struct urb *intr_urb; /* URB for interrupt endpoint */
107 int intr_size; /* Size of interrupt message */
108 int interval; /* Interrupt polling interval */
109 struct intr_transfer_buf intr; /* Data buffer for interrupt endpoint */
71bb244b
AS		 110};
111
112static void brcmf_usb_rx_refill(struct brcmf_usbdev_info *devinfo,
113 struct brcmf_usbreq *req);
114
115MODULE_AUTHOR("Broadcom Corporation");
116MODULE_DESCRIPTION("Broadcom 802.11n wireless LAN fullmac usb driver.");
117MODULE_SUPPORTED_DEVICE("Broadcom 802.11n WLAN fullmac usb cards");
118MODULE_LICENSE("Dual BSD/GPL");
119
120static struct brcmf_usbdev *brcmf_usb_get_buspub(struct device *dev)
121{
122 struct brcmf_bus *bus_if = dev_get_drvdata(dev);
123 return bus_if->bus_priv.usb;
124}
125
126static struct brcmf_usbdev_info *brcmf_usb_get_businfo(struct device *dev)
127{
128 return brcmf_usb_get_buspub(dev)->devinfo;
129}
130
70398a59 131static int brcmf_usb_ioctl_resp_wait(struct brcmf_usbdev_info *devinfo)
71bb244b 132{
70398a59
HM		 133 return wait_event_timeout(devinfo->ioctl_resp_wait,
134 devinfo->ctl_completed,
135 msecs_to_jiffies(IOCTL_RESP_TIMEOUT));
71bb244b
AS		 136}
137
70398a59 138static void brcmf_usb_ioctl_resp_wake(struct brcmf_usbdev_info *devinfo)
71bb244b
AS		 139{
140 if (waitqueue_active(&devinfo->ioctl_resp_wait))
70398a59 141 wake_up(&devinfo->ioctl_resp_wait);
71bb244b
AS		 142}
143
144static void
145brcmf_usb_ctl_complete(struct brcmf_usbdev_info *devinfo, int type, int status)
146{
cb8b73da 147 brcmf_dbg(USB, "Enter, status=%d\n", status);
71bb244b
AS		 148
149 if (unlikely(devinfo == NULL))
150 return;
151
152 if (type == BRCMF_USB_CBCTL_READ) {
153 if (status == 0)
154 devinfo->bus_pub.stats.rx_ctlpkts++;
155 else
156 devinfo->bus_pub.stats.rx_ctlerrs++;
157 } else if (type == BRCMF_USB_CBCTL_WRITE) {
158 if (status == 0)
159 devinfo->bus_pub.stats.tx_ctlpkts++;
160 else
161 devinfo->bus_pub.stats.tx_ctlerrs++;
162 }
163
164 devinfo->ctl_urb_status = status;
165 devinfo->ctl_completed = true;
166 brcmf_usb_ioctl_resp_wake(devinfo);
167}
168
169static void
170brcmf_usb_ctlread_complete(struct urb *urb)
171{
172 struct brcmf_usbdev_info *devinfo =
173 (struct brcmf_usbdev_info *)urb->context;
174
cb8b73da 175 brcmf_dbg(USB, "Enter\n");
71bb244b
AS		 176 devinfo->ctl_urb_actual_length = urb->actual_length;
177 brcmf_usb_ctl_complete(devinfo, BRCMF_USB_CBCTL_READ,
178 urb->status);
179}
180
181static void
182brcmf_usb_ctlwrite_complete(struct urb *urb)
183{
184 struct brcmf_usbdev_info *devinfo =
185 (struct brcmf_usbdev_info *)urb->context;
186
cb8b73da 187 brcmf_dbg(USB, "Enter\n");
71bb244b
AS		 188 brcmf_usb_ctl_complete(devinfo, BRCMF_USB_CBCTL_WRITE,
189 urb->status);
190}
191
71bb244b
AS		 192static int
193brcmf_usb_send_ctl(struct brcmf_usbdev_info *devinfo, u8 *buf, int len)
194{
195 int ret;
196 u16 size;
197
cb8b73da 198 brcmf_dbg(USB, "Enter\n");
71bb244b
AS		 199 if (devinfo == NULL || buf == NULL ||
200 len == 0 || devinfo->ctl_urb == NULL)
201 return -EINVAL;
202
71bb244b
AS		 203 size = len;
204 devinfo->ctl_write.wLength = cpu_to_le16p(&size);
205 devinfo->ctl_urb->transfer_buffer_length = size;
206 devinfo->ctl_urb_status = 0;
207 devinfo->ctl_urb_actual_length = 0;
208
209 usb_fill_control_urb(devinfo->ctl_urb,
210 devinfo->usbdev,
211 devinfo->ctl_out_pipe,
212 (unsigned char *) &devinfo->ctl_write,
213 buf, size,
214 (usb_complete_t)brcmf_usb_ctlwrite_complete,
215 devinfo);
216
217 ret = usb_submit_urb(devinfo->ctl_urb, GFP_ATOMIC);
218 if (ret < 0)
5e8149f5 219 brcmf_err("usb_submit_urb failed %d\n", ret);
71bb244b
AS		 220
221 return ret;
222}
223
224static int
225brcmf_usb_recv_ctl(struct brcmf_usbdev_info *devinfo, u8 *buf, int len)
226{
227 int ret;
228 u16 size;
229
cb8b73da 230 brcmf_dbg(USB, "Enter\n");
71bb244b
AS		 231 if ((devinfo == NULL) || (buf == NULL) || (len == 0)
232 || (devinfo->ctl_urb == NULL))
233 return -EINVAL;
234
235 size = len;
236 devinfo->ctl_read.wLength = cpu_to_le16p(&size);
237 devinfo->ctl_urb->transfer_buffer_length = size;
238
81643292
HM		 239 devinfo->ctl_read.bRequestType = USB_DIR_IN
240 | USB_TYPE_CLASS | USB_RECIP_INTERFACE;
241 devinfo->ctl_read.bRequest = 1;
71bb244b
AS		 242
243 usb_fill_control_urb(devinfo->ctl_urb,
244 devinfo->usbdev,
245 devinfo->ctl_in_pipe,
246 (unsigned char *) &devinfo->ctl_read,
247 buf, size,
248 (usb_complete_t)brcmf_usb_ctlread_complete,
249 devinfo);
250
251 ret = usb_submit_urb(devinfo->ctl_urb, GFP_ATOMIC);
252 if (ret < 0)
5e8149f5 253 brcmf_err("usb_submit_urb failed %d\n", ret);
71bb244b
AS		 254
255 return ret;
256}
257
258static int brcmf_usb_tx_ctlpkt(struct device *dev, u8 *buf, u32 len)
259{
260 int err = 0;
261 int timeout = 0;
71bb244b
AS		 262 struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(dev);
263
cb8b73da 264 brcmf_dbg(USB, "Enter\n");
7c38e698 265 if (devinfo->bus_pub.state != BRCMFMAC_USB_STATE_UP)
71bb244b 266 return -EIO;
71bb244b
AS		 267
268 if (test_and_set_bit(0, &devinfo->ctl_op))
269 return -EIO;
270
a77f5747 271 devinfo->ctl_completed = false;
71bb244b
AS		 272 err = brcmf_usb_send_ctl(devinfo, buf, len);
273 if (err) {
5e8149f5 274 brcmf_err("fail %d bytes: %d\n", err, len);
6385df2d 275 clear_bit(0, &devinfo->ctl_op);
71bb244b
AS		 276 return err;
277 }
70398a59 278 timeout = brcmf_usb_ioctl_resp_wait(devinfo);
71bb244b
AS		 279 clear_bit(0, &devinfo->ctl_op);
280 if (!timeout) {
5e8149f5 281 brcmf_err("Txctl wait timed out\n");
71bb244b
AS		 282 err = -EIO;
283 }
284 return err;
285}
286
287static int brcmf_usb_rx_ctlpkt(struct device *dev, u8 *buf, u32 len)
288{
289 int err = 0;
290 int timeout = 0;
71bb244b
AS		 291 struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(dev);
292
cb8b73da 293 brcmf_dbg(USB, "Enter\n");
7c38e698 294 if (devinfo->bus_pub.state != BRCMFMAC_USB_STATE_UP)
71bb244b 295 return -EIO;
7c38e698 296
71bb244b
AS		 297 if (test_and_set_bit(0, &devinfo->ctl_op))
298 return -EIO;
299
70398a59 300 devinfo->ctl_completed = false;
71bb244b
AS		 301 err = brcmf_usb_recv_ctl(devinfo, buf, len);
302 if (err) {
5e8149f5 303 brcmf_err("fail %d bytes: %d\n", err, len);
6385df2d 304 clear_bit(0, &devinfo->ctl_op);
71bb244b
AS		 305 return err;
306 }
70398a59 307 timeout = brcmf_usb_ioctl_resp_wait(devinfo);
71bb244b
AS		 308 err = devinfo->ctl_urb_status;
309 clear_bit(0, &devinfo->ctl_op);
310 if (!timeout) {
5e8149f5 311 brcmf_err("rxctl wait timed out\n");
71bb244b
AS		 312 err = -EIO;
313 }
314 if (!err)
315 return devinfo->ctl_urb_actual_length;
316 else
317 return err;
318}
319
320static struct brcmf_usbreq *brcmf_usb_deq(struct brcmf_usbdev_info *devinfo,
c6ab4294 321 struct list_head *q, int *counter)
71bb244b
AS		 322{
323 unsigned long flags;
324 struct brcmf_usbreq *req;
325 spin_lock_irqsave(&devinfo->qlock, flags);
326 if (list_empty(q)) {
327 spin_unlock_irqrestore(&devinfo->qlock, flags);
328 return NULL;
329 }
330 req = list_entry(q->next, struct brcmf_usbreq, list);
331 list_del_init(q->next);
c6ab4294
HM		 332 if (counter)
333 (*counter)--;
71bb244b
AS		 334 spin_unlock_irqrestore(&devinfo->qlock, flags);
335 return req;
336
337}
338
339static void brcmf_usb_enq(struct brcmf_usbdev_info *devinfo,
c6ab4294
HM		 340 struct list_head *q, struct brcmf_usbreq *req,
341 int *counter)
71bb244b
AS		 342{
343 unsigned long flags;
344 spin_lock_irqsave(&devinfo->qlock, flags);
345 list_add_tail(&req->list, q);
c6ab4294
HM		 346 if (counter)
347 (*counter)++;
71bb244b
AS		 348 spin_unlock_irqrestore(&devinfo->qlock, flags);
349}
350
351static struct brcmf_usbreq *
352brcmf_usbdev_qinit(struct list_head *q, int qsize)
353{
354 int i;
355 struct brcmf_usbreq *req, *reqs;
356
357 reqs = kzalloc(sizeof(struct brcmf_usbreq) * qsize, GFP_ATOMIC);
358 if (reqs == NULL) {
5e8149f5 359 brcmf_err("fail to allocate memory!\n");
71bb244b
AS		 360 return NULL;
361 }
362 req = reqs;
363
364 for (i = 0; i < qsize; i++) {
365 req->urb = usb_alloc_urb(0, GFP_ATOMIC);
366 if (!req->urb)
367 goto fail;
368
369 INIT_LIST_HEAD(&req->list);
370 list_add_tail(&req->list, q);
371 req++;
372 }
373 return reqs;
374fail:
5e8149f5 375 brcmf_err("fail!\n");
71bb244b
AS		 376 while (!list_empty(q)) {
377 req = list_entry(q->next, struct brcmf_usbreq, list);
378 if (req && req->urb)
379 usb_free_urb(req->urb);
380 list_del(q->next);
381 }
382 return NULL;
383
384}
385
386static void brcmf_usb_free_q(struct list_head *q, bool pending)
387{
388 struct brcmf_usbreq *req, *next;
389 int i = 0;
390 list_for_each_entry_safe(req, next, q, list) {
d4ca0099 391 if (!req->urb) {
5e8149f5 392 brcmf_err("bad req\n");
71bb244b
AS		 393 break;
394 }
395 i++;
396 if (pending) {
397 usb_kill_urb(req->urb);
398 } else {
399 usb_free_urb(req->urb);
400 list_del_init(&req->list);
401 }
402 }
403}
404
405static void brcmf_usb_del_fromq(struct brcmf_usbdev_info *devinfo,
406 struct brcmf_usbreq *req)
407{
408 unsigned long flags;
409
410 spin_lock_irqsave(&devinfo->qlock, flags);
411 list_del_init(&req->list);
412 spin_unlock_irqrestore(&devinfo->qlock, flags);
413}
414
415
416static void brcmf_usb_tx_complete(struct urb *urb)
417{
418 struct brcmf_usbreq *req = (struct brcmf_usbreq *)urb->context;
419 struct brcmf_usbdev_info *devinfo = req->devinfo;
420
cb8b73da
HM		 421 brcmf_dbg(USB, "Enter, urb->status=%d, skb=%p\n", urb->status,
422 req->skb);
71bb244b
AS		 423 brcmf_usb_del_fromq(devinfo, req);
424 if (urb->status == 0)
1d9c1796 425 devinfo->bus_pub.bus->dstats.tx_packets++;
71bb244b 426 else
1d9c1796 427 devinfo->bus_pub.bus->dstats.tx_errors++;
71bb244b 428
1e2d958b
HM		 429 brcmf_txcomplete(devinfo->dev, req->skb, urb->status == 0);
430
01e3331b 431 brcmu_pkt_buf_free_skb(req->skb);
71bb244b 432 req->skb = NULL;
c6ab4294
HM		 433 brcmf_usb_enq(devinfo, &devinfo->tx_freeq, req, &devinfo->tx_freecount);
434 if (devinfo->tx_freecount > devinfo->tx_high_watermark &&
435 devinfo->tx_flowblock) {
436 brcmf_txflowblock(devinfo->dev, false);
437 devinfo->tx_flowblock = false;
438 }
71bb244b
AS		 439}
440
441static void brcmf_usb_rx_complete(struct urb *urb)
442{
443 struct brcmf_usbreq *req = (struct brcmf_usbreq *)urb->context;
444 struct brcmf_usbdev_info *devinfo = req->devinfo;
445 struct sk_buff *skb;
446 int ifidx = 0;
447
cb8b73da 448 brcmf_dbg(USB, "Enter, urb->status=%d\n", urb->status);
71bb244b
AS		 449 brcmf_usb_del_fromq(devinfo, req);
450 skb = req->skb;
451 req->skb = NULL;
452
453 if (urb->status == 0) {
1d9c1796 454 devinfo->bus_pub.bus->dstats.rx_packets++;
71bb244b 455 } else {
1d9c1796 456 devinfo->bus_pub.bus->dstats.rx_errors++;
01e3331b 457 brcmu_pkt_buf_free_skb(skb);
c6ab4294 458 brcmf_usb_enq(devinfo, &devinfo->rx_freeq, req, NULL);
71bb244b
AS		 459 return;
460 }
461
7c38e698 462 if (devinfo->bus_pub.state == BRCMFMAC_USB_STATE_UP) {
71bb244b
AS		 463 skb_put(skb, urb->actual_length);
464 if (brcmf_proto_hdrpull(devinfo->dev, &ifidx, skb) != 0) {
5e8149f5 465 brcmf_err("rx protocol error\n");
71bb244b
AS		 466 brcmu_pkt_buf_free_skb(skb);
467 devinfo->bus_pub.bus->dstats.rx_errors++;
64477ebc 468 } else
71bb244b 469 brcmf_rx_packet(devinfo->dev, ifidx, skb);
64477ebc 470 brcmf_usb_rx_refill(devinfo, req);
71bb244b 471 } else {
01e3331b 472 brcmu_pkt_buf_free_skb(skb);
c6ab4294 473 brcmf_usb_enq(devinfo, &devinfo->rx_freeq, req, NULL);
71bb244b
AS		 474 }
475 return;
476
477}
478
479static void brcmf_usb_rx_refill(struct brcmf_usbdev_info *devinfo,
480 struct brcmf_usbreq *req)
481{
482 struct sk_buff *skb;
483 int ret;
484
485 if (!req || !devinfo)
486 return;
487
488 skb = dev_alloc_skb(devinfo->bus_pub.bus_mtu);
489 if (!skb) {
c6ab4294 490 brcmf_usb_enq(devinfo, &devinfo->rx_freeq, req, NULL);
71bb244b
AS		 491 return;
492 }
493 req->skb = skb;
494
495 usb_fill_bulk_urb(req->urb, devinfo->usbdev, devinfo->rx_pipe,
496 skb->data, skb_tailroom(skb), brcmf_usb_rx_complete,
497 req);
71bb244b 498 req->devinfo = devinfo;
c6ab4294 499 brcmf_usb_enq(devinfo, &devinfo->rx_postq, req, NULL);
71bb244b
AS		 500
501 ret = usb_submit_urb(req->urb, GFP_ATOMIC);
2e875acd
HM		 502 if (ret) {
503 brcmf_usb_del_fromq(devinfo, req);
01e3331b 504 brcmu_pkt_buf_free_skb(req->skb);
71bb244b 505 req->skb = NULL;
c6ab4294 506 brcmf_usb_enq(devinfo, &devinfo->rx_freeq, req, NULL);
71bb244b
AS		 507 }
508 return;
509}
510
511static void brcmf_usb_rx_fill_all(struct brcmf_usbdev_info *devinfo)
512{
513 struct brcmf_usbreq *req;
514
7c38e698 515 if (devinfo->bus_pub.state != BRCMFMAC_USB_STATE_UP) {
5e8149f5 516 brcmf_err("bus is not up=%d\n", devinfo->bus_pub.state);
71bb244b
AS		 517 return;
518 }
c6ab4294 519 while ((req = brcmf_usb_deq(devinfo, &devinfo->rx_freeq, NULL)) != NULL)
71bb244b
AS		 520 brcmf_usb_rx_refill(devinfo, req);
521}
522
523static void
524brcmf_usb_state_change(struct brcmf_usbdev_info *devinfo, int state)
525{
526 struct brcmf_bus *bcmf_bus = devinfo->bus_pub.bus;
527 int old_state;
528
cb8b73da
HM		 529 brcmf_dbg(USB, "Enter, current state=%d, new state=%d\n",
530 devinfo->bus_pub.state, state);
71bb244b
AS		 531
532 if (devinfo->bus_pub.state == state)
533 return;
534
535 old_state = devinfo->bus_pub.state;
7c38e698 536 devinfo->bus_pub.state = state;
71bb244b
AS		 537
538 /* update state of upper layer */
7c38e698 539 if (state == BRCMFMAC_USB_STATE_DOWN) {
cb8b73da 540 brcmf_dbg(USB, "DBUS is down\n");
71bb244b 541 bcmf_bus->state = BRCMF_BUS_DOWN;
7c38e698
HM		 542 } else if (state == BRCMFMAC_USB_STATE_UP) {
543 brcmf_dbg(USB, "DBUS is up\n");
544 bcmf_bus->state = BRCMF_BUS_DATA;
71bb244b 545 } else {
cb8b73da 546 brcmf_dbg(USB, "DBUS current state=%d\n", state);
71bb244b
AS		 547 }
548}
549
550static void
551brcmf_usb_intr_complete(struct urb *urb)
552{
553 struct brcmf_usbdev_info *devinfo =
554 (struct brcmf_usbdev_info *)urb->context;
7c38e698 555 int err;
71bb244b 556
cb8b73da
HM		 557 brcmf_dbg(USB, "Enter, urb->status=%d\n", urb->status);
558
71bb244b
AS		 559 if (devinfo == NULL)
560 return;
561
562 if (unlikely(urb->status)) {
7c38e698
HM		 563 if (urb->status == -ENOENT ||
564 urb->status == -ESHUTDOWN ||
565 urb->status == -ENODEV) {
566 brcmf_usb_state_change(devinfo,
567 BRCMFMAC_USB_STATE_DOWN);
71bb244b
AS		 568 }
569 }
570
7c38e698 571 if (devinfo->bus_pub.state == BRCMFMAC_USB_STATE_DOWN) {
5e8149f5 572 brcmf_err("intr cb when DBUS down, ignoring\n");
71bb244b
AS		 573 return;
574 }
575
7c38e698
HM		 576 if (devinfo->bus_pub.state == BRCMFMAC_USB_STATE_UP) {
577 err = usb_submit_urb(devinfo->intr_urb, GFP_ATOMIC);
578 if (err)
5e8149f5 579 brcmf_err("usb_submit_urb, err=%d\n", err);
7c38e698 580 }
71bb244b
AS		 581}
582
583static int brcmf_usb_tx(struct device *dev, struct sk_buff *skb)
584{
585 struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(dev);
586 struct brcmf_usbreq *req;
587 int ret;
588
cb8b73da 589 brcmf_dbg(USB, "Enter, skb=%p\n", skb);
7c38e698 590 if (devinfo->bus_pub.state != BRCMFMAC_USB_STATE_UP)
71bb244b 591 return -EIO;
71bb244b 592
c6ab4294
HM		 593 req = brcmf_usb_deq(devinfo, &devinfo->tx_freeq,
594 &devinfo->tx_freecount);
71bb244b 595 if (!req) {
2e875acd 596 brcmu_pkt_buf_free_skb(skb);
5e8149f5 597 brcmf_err("no req to send\n");
71bb244b
AS		 598 return -ENOMEM;
599 }
71bb244b
AS		 600
601 req->skb = skb;
602 req->devinfo = devinfo;
603 usb_fill_bulk_urb(req->urb, devinfo->usbdev, devinfo->tx_pipe,
604 skb->data, skb->len, brcmf_usb_tx_complete, req);
605 req->urb->transfer_flags |= URB_ZERO_PACKET;
c6ab4294 606 brcmf_usb_enq(devinfo, &devinfo->tx_postq, req, NULL);
71bb244b 607 ret = usb_submit_urb(req->urb, GFP_ATOMIC);
2e875acd 608 if (ret) {
5e8149f5 609 brcmf_err("brcmf_usb_tx usb_submit_urb FAILED\n");
2e875acd
HM		 610 brcmf_usb_del_fromq(devinfo, req);
611 brcmu_pkt_buf_free_skb(req->skb);
71bb244b 612 req->skb = NULL;
c6ab4294
HM		 613 brcmf_usb_enq(devinfo, &devinfo->tx_freeq, req,
614 &devinfo->tx_freecount);
615 } else {
616 if (devinfo->tx_freecount < devinfo->tx_low_watermark &&
617 !devinfo->tx_flowblock) {
618 brcmf_txflowblock(dev, true);
619 devinfo->tx_flowblock = true;
620 }
71bb244b
AS		 621 }
622
623 return ret;
624}
625
626
627static int brcmf_usb_up(struct device *dev)
628{
629 struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(dev);
630 u16 ifnum;
7c38e698 631 int ret;
71bb244b 632
cb8b73da 633 brcmf_dbg(USB, "Enter\n");
7c38e698 634 if (devinfo->bus_pub.state == BRCMFMAC_USB_STATE_UP)
d4ca0099
DC		 635 return 0;
636
71bb244b 637 /* Success, indicate devinfo is fully up */
7c38e698 638 brcmf_usb_state_change(devinfo, BRCMFMAC_USB_STATE_UP);
71bb244b
AS		 639
640 if (devinfo->intr_urb) {
71bb244b
AS		 641 usb_fill_int_urb(devinfo->intr_urb, devinfo->usbdev,
642 devinfo->intr_pipe,
643 &devinfo->intr,
644 devinfo->intr_size,
645 (usb_complete_t)brcmf_usb_intr_complete,
646 devinfo,
647 devinfo->interval);
648
649 ret = usb_submit_urb(devinfo->intr_urb, GFP_ATOMIC);
650 if (ret) {
5e8149f5 651 brcmf_err("USB_SUBMIT_URB failed with status %d\n",
71bb244b
AS		 652 ret);
653 return -EINVAL;
654 }
655 }
656
657 if (devinfo->ctl_urb) {
658 devinfo->ctl_in_pipe = usb_rcvctrlpipe(devinfo->usbdev, 0);
659 devinfo->ctl_out_pipe = usb_sndctrlpipe(devinfo->usbdev, 0);
660
661 ifnum = IFDESC(devinfo->usbdev, CONTROL_IF).bInterfaceNumber;
662
663 /* CTL Write */
664 devinfo->ctl_write.bRequestType =
665 USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE;
666 devinfo->ctl_write.bRequest = 0;
667 devinfo->ctl_write.wValue = cpu_to_le16(0);
668 devinfo->ctl_write.wIndex = cpu_to_le16p(&ifnum);
669
670 /* CTL Read */
671 devinfo->ctl_read.bRequestType =
672 USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE;
673 devinfo->ctl_read.bRequest = 1;
674 devinfo->ctl_read.wValue = cpu_to_le16(0);
675 devinfo->ctl_read.wIndex = cpu_to_le16p(&ifnum);
676 }
677 brcmf_usb_rx_fill_all(devinfo);
678 return 0;
679}
680
681static void brcmf_usb_down(struct device *dev)
682{
683 struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(dev);
684
cb8b73da 685 brcmf_dbg(USB, "Enter\n");
71bb244b
AS		 686 if (devinfo == NULL)
687 return;
688
7c38e698 689 if (devinfo->bus_pub.state == BRCMFMAC_USB_STATE_DOWN)
71bb244b
AS		 690 return;
691
7c38e698 692 brcmf_usb_state_change(devinfo, BRCMFMAC_USB_STATE_DOWN);
71bb244b
AS		 693 if (devinfo->intr_urb)
694 usb_kill_urb(devinfo->intr_urb);
695
696 if (devinfo->ctl_urb)
697 usb_kill_urb(devinfo->ctl_urb);
698
699 if (devinfo->bulk_urb)
700 usb_kill_urb(devinfo->bulk_urb);
701 brcmf_usb_free_q(&devinfo->tx_postq, true);
702
703 brcmf_usb_free_q(&devinfo->rx_postq, true);
704}
705
71bb244b
AS		 706static void
707brcmf_usb_sync_complete(struct urb *urb)
708{
709 struct brcmf_usbdev_info *devinfo =
710 (struct brcmf_usbdev_info *)urb->context;
711
1e271c95
HM		 712 devinfo->ctl_completed = true;
713 brcmf_usb_ioctl_resp_wake(devinfo);
71bb244b
AS		 714}
715
716static bool brcmf_usb_dl_cmd(struct brcmf_usbdev_info *devinfo, u8 cmd,
717 void *buffer, int buflen)
718{
719 int ret = 0;
720 char *tmpbuf;
721 u16 size;
722
723 if ((!devinfo) || (devinfo->ctl_urb == NULL))
724 return false;
725
726 tmpbuf = kmalloc(buflen, GFP_ATOMIC);
727 if (!tmpbuf)
728 return false;
729
730 size = buflen;
731 devinfo->ctl_urb->transfer_buffer_length = size;
732
733 devinfo->ctl_read.wLength = cpu_to_le16p(&size);
734 devinfo->ctl_read.bRequestType = USB_DIR_IN | USB_TYPE_VENDOR |
735 USB_RECIP_INTERFACE;
736 devinfo->ctl_read.bRequest = cmd;
737
738 usb_fill_control_urb(devinfo->ctl_urb,
739 devinfo->usbdev,
740 usb_rcvctrlpipe(devinfo->usbdev, 0),
741 (unsigned char *) &devinfo->ctl_read,
742 (void *) tmpbuf, size,
743 (usb_complete_t)brcmf_usb_sync_complete, devinfo);
744
1e271c95 745 devinfo->ctl_completed = false;
71bb244b
AS		 746 ret = usb_submit_urb(devinfo->ctl_urb, GFP_ATOMIC);
747 if (ret < 0) {
5e8149f5 748 brcmf_err("usb_submit_urb failed %d\n", ret);
71bb244b
AS		 749 kfree(tmpbuf);
750 return false;
751 }
752
1e271c95 753 ret = brcmf_usb_ioctl_resp_wait(devinfo);
71bb244b
AS		 754 memcpy(buffer, tmpbuf, buflen);
755 kfree(tmpbuf);
756
1e271c95 757 return ret;
71bb244b
AS		 758}
759
760static bool
761brcmf_usb_dlneeded(struct brcmf_usbdev_info *devinfo)
762{
763 struct bootrom_id_le id;
764 u32 chipid, chiprev;
765
cb8b73da 766 brcmf_dbg(USB, "Enter\n");
71bb244b
AS		 767
768 if (devinfo == NULL)
769 return false;
770
771 /* Check if firmware downloaded already by querying runtime ID */
772 id.chip = cpu_to_le32(0xDEAD);
83bc9c31 773 brcmf_usb_dl_cmd(devinfo, DL_GETVER, &id, sizeof(id));
71bb244b
AS		 774
775 chipid = le32_to_cpu(id.chip);
776 chiprev = le32_to_cpu(id.chiprev);
777
778 if ((chipid & 0x4300) == 0x4300)
cb8b73da 779 brcmf_dbg(USB, "chip %x rev 0x%x\n", chipid, chiprev);
71bb244b 780 else
cb8b73da 781 brcmf_dbg(USB, "chip %d rev 0x%x\n", chipid, chiprev);
71bb244b 782 if (chipid == BRCMF_POSTBOOT_ID) {
cb8b73da 783 brcmf_dbg(USB, "firmware already downloaded\n");
83bc9c31 784 brcmf_usb_dl_cmd(devinfo, DL_RESETCFG, &id, sizeof(id));
71bb244b
AS		 785 return false;
786 } else {
ac94f196
AS		 787 devinfo->bus_pub.devid = chipid;
788 devinfo->bus_pub.chiprev = chiprev;
71bb244b
AS		 789 }
790 return true;
791}
792
793static int
794brcmf_usb_resetcfg(struct brcmf_usbdev_info *devinfo)
795{
796 struct bootrom_id_le id;
83bc9c31 797 u32 loop_cnt;
71bb244b 798
cb8b73da 799 brcmf_dbg(USB, "Enter\n");
71bb244b 800
83bc9c31
HM		 801 loop_cnt = 0;
802 do {
803 mdelay(BRCMF_USB_RESET_GETVER_SPINWAIT);
804 loop_cnt++;
71bb244b 805 id.chip = cpu_to_le32(0xDEAD); /* Get the ID */
83bc9c31 806 brcmf_usb_dl_cmd(devinfo, DL_GETVER, &id, sizeof(id));
71bb244b
AS		 807 if (id.chip == cpu_to_le32(BRCMF_POSTBOOT_ID))
808 break;
83bc9c31 809 } while (loop_cnt < BRCMF_USB_RESET_GETVER_LOOP_CNT);
71bb244b
AS		 810
811 if (id.chip == cpu_to_le32(BRCMF_POSTBOOT_ID)) {
83bc9c31
HM		 812 brcmf_dbg(USB, "postboot chip 0x%x/rev 0x%x\n",
813 le32_to_cpu(id.chip), le32_to_cpu(id.chiprev));
71bb244b 814
83bc9c31 815 brcmf_usb_dl_cmd(devinfo, DL_RESETCFG, &id, sizeof(id));
71bb244b
AS		 816 return 0;
817 } else {
5e8149f5 818 brcmf_err("Cannot talk to Dongle. Firmware is not UP, %d ms\n",
83bc9c31 819 BRCMF_USB_RESET_GETVER_SPINWAIT * loop_cnt);
71bb244b
AS		 820 return -EINVAL;
821 }
822}
823
824
825static int
826brcmf_usb_dl_send_bulk(struct brcmf_usbdev_info *devinfo, void *buffer, int len)
827{
828 int ret;
829
830 if ((devinfo == NULL) || (devinfo->bulk_urb == NULL))
831 return -EINVAL;
832
833 /* Prepare the URB */
834 usb_fill_bulk_urb(devinfo->bulk_urb, devinfo->usbdev,
835 devinfo->tx_pipe, buffer, len,
836 (usb_complete_t)brcmf_usb_sync_complete, devinfo);
837
838 devinfo->bulk_urb->transfer_flags |= URB_ZERO_PACKET;
839
1e271c95 840 devinfo->ctl_completed = false;
71bb244b
AS		 841 ret = usb_submit_urb(devinfo->bulk_urb, GFP_ATOMIC);
842 if (ret) {
5e8149f5 843 brcmf_err("usb_submit_urb failed %d\n", ret);
71bb244b
AS		 844 return ret;
845 }
1e271c95
HM		 846 ret = brcmf_usb_ioctl_resp_wait(devinfo);
847 return (ret == 0);
71bb244b
AS		 848}
849
850static int
851brcmf_usb_dl_writeimage(struct brcmf_usbdev_info *devinfo, u8 *fw, int fwlen)
852{
853 unsigned int sendlen, sent, dllen;
854 char *bulkchunk = NULL, *dlpos;
855 struct rdl_state_le state;
856 u32 rdlstate, rdlbytes;
857 int err = 0;
cb8b73da
HM		 858
859 brcmf_dbg(USB, "Enter, fw %p, len %d\n", fw, fwlen);
71bb244b
AS		 860
861 bulkchunk = kmalloc(RDL_CHUNK, GFP_ATOMIC);
862 if (bulkchunk == NULL) {
863 err = -ENOMEM;
864 goto fail;
865 }
866
867 /* 1) Prepare USB boot loader for runtime image */
868 brcmf_usb_dl_cmd(devinfo, DL_START, &state,
869 sizeof(struct rdl_state_le));
870
871 rdlstate = le32_to_cpu(state.state);
872 rdlbytes = le32_to_cpu(state.bytes);
873
874 /* 2) Check we are in the Waiting state */
875 if (rdlstate != DL_WAITING) {
5e8149f5 876 brcmf_err("Failed to DL_START\n");
71bb244b
AS		 877 err = -EINVAL;
878 goto fail;
879 }
880 sent = 0;
881 dlpos = fw;
882 dllen = fwlen;
883
884 /* Get chip id and rev */
885 while (rdlbytes != dllen) {
886 /* Wait until the usb device reports it received all
887 * the bytes we sent */
888 if ((rdlbytes == sent) && (rdlbytes != dllen)) {
889 if ((dllen-sent) < RDL_CHUNK)
890 sendlen = dllen-sent;
891 else
892 sendlen = RDL_CHUNK;
893
894 /* simply avoid having to send a ZLP by ensuring we
895 * never have an even
896 * multiple of 64
897 */
898 if (!(sendlen % 64))
899 sendlen -= 4;
900
901 /* send data */
902 memcpy(bulkchunk, dlpos, sendlen);
903 if (brcmf_usb_dl_send_bulk(devinfo, bulkchunk,
904 sendlen)) {
5e8149f5 905 brcmf_err("send_bulk failed\n");
71bb244b
AS		 906 err = -EINVAL;
907 goto fail;
908 }
909
910 dlpos += sendlen;
911 sent += sendlen;
912 }
913 if (!brcmf_usb_dl_cmd(devinfo, DL_GETSTATE, &state,
914 sizeof(struct rdl_state_le))) {
5e8149f5 915 brcmf_err("DL_GETSTATE Failed xxxx\n");
71bb244b
AS		 916 err = -EINVAL;
917 goto fail;
918 }
919
920 rdlstate = le32_to_cpu(state.state);
921 rdlbytes = le32_to_cpu(state.bytes);
922
923 /* restart if an error is reported */
924 if (rdlstate == DL_BAD_HDR || rdlstate == DL_BAD_CRC) {
5e8149f5 925 brcmf_err("Bad Hdr or Bad CRC state %d\n",
71bb244b
AS		 926 rdlstate);
927 err = -EINVAL;
928 goto fail;
929 }
930 }
931
932fail:
933 kfree(bulkchunk);
cb8b73da 934 brcmf_dbg(USB, "Exit, err=%d\n", err);
71bb244b
AS		 935 return err;
936}
937
938static int brcmf_usb_dlstart(struct brcmf_usbdev_info *devinfo, u8 *fw, int len)
939{
940 int err;
941
cb8b73da 942 brcmf_dbg(USB, "Enter\n");
71bb244b
AS		 943
944 if (devinfo == NULL)
945 return -EINVAL;
946
ac94f196 947 if (devinfo->bus_pub.devid == 0xDEAD)
71bb244b
AS		 948 return -EINVAL;
949
950 err = brcmf_usb_dl_writeimage(devinfo, fw, len);
951 if (err == 0)
7c38e698 952 devinfo->bus_pub.state = BRCMFMAC_USB_STATE_DL_DONE;
71bb244b 953 else
7c38e698 954 devinfo->bus_pub.state = BRCMFMAC_USB_STATE_DL_FAIL;
cb8b73da 955 brcmf_dbg(USB, "Exit, err=%d\n", err);
71bb244b
AS		 956
957 return err;
958}
959
960static int brcmf_usb_dlrun(struct brcmf_usbdev_info *devinfo)
961{
962 struct rdl_state_le state;
963
cb8b73da 964 brcmf_dbg(USB, "Enter\n");
71bb244b
AS		 965 if (!devinfo)
966 return -EINVAL;
967
ac94f196 968 if (devinfo->bus_pub.devid == 0xDEAD)
71bb244b
AS		 969 return -EINVAL;
970
971 /* Check we are runnable */
972 brcmf_usb_dl_cmd(devinfo, DL_GETSTATE, &state,
973 sizeof(struct rdl_state_le));
974
975 /* Start the image */
976 if (state.state == cpu_to_le32(DL_RUNNABLE)) {
977 if (!brcmf_usb_dl_cmd(devinfo, DL_GO, &state,
978 sizeof(struct rdl_state_le)))
979 return -ENODEV;
980 if (brcmf_usb_resetcfg(devinfo))
981 return -ENODEV;
982 /* The Dongle may go for re-enumeration. */
983 } else {
5e8149f5 984 brcmf_err("Dongle not runnable\n");
71bb244b
AS		 985 return -EINVAL;
986 }
cb8b73da 987 brcmf_dbg(USB, "Exit\n");
71bb244b
AS		 988 return 0;
989}
990
991static bool brcmf_usb_chip_support(int chipid, int chiprev)
992{
993 switch(chipid) {
70f0822c
HM		 994 case 43143:
995 return true;
71bb244b
AS		 996 case 43235:
997 case 43236:
998 case 43238:
999 return (chiprev == 3);
1212d370
HM		 1000 case 43242:
1001 return true;
71bb244b
AS		 1002 default:
1003 break;
1004 }
1005 return false;
1006}
1007
1008static int
1009brcmf_usb_fw_download(struct brcmf_usbdev_info *devinfo)
1010{
ac94f196 1011 int devid, chiprev;
71bb244b
AS		 1012 int err;
1013
cb8b73da 1014 brcmf_dbg(USB, "Enter\n");
71bb244b
AS		 1015 if (devinfo == NULL)
1016 return -ENODEV;
1017
ac94f196
AS		 1018 devid = devinfo->bus_pub.devid;
1019 chiprev = devinfo->bus_pub.chiprev;
71bb244b 1020
ac94f196 1021 if (!brcmf_usb_chip_support(devid, chiprev)) {
5e8149f5 1022 brcmf_err("unsupported chip %d rev %d\n",
ac94f196 1023 devid, chiprev);
71bb244b
AS		 1024 return -EINVAL;
1025 }
1026
1027 if (!devinfo->image) {
5e8149f5 1028 brcmf_err("No firmware!\n");
71bb244b
AS		 1029 return -ENOENT;
1030 }
1031
1032 err = brcmf_usb_dlstart(devinfo,
1033 devinfo->image, devinfo->image_len);
1034 if (err == 0)
1035 err = brcmf_usb_dlrun(devinfo);
1036 return err;
1037}
1038
1039
d74a0b51 1040static void brcmf_usb_detach(struct brcmf_usbdev_info *devinfo)
71bb244b 1041{
cb8b73da 1042 brcmf_dbg(USB, "Enter, devinfo %p\n", devinfo);
71bb244b 1043
71bb244b
AS		 1044 /* free the URBS */
1045 brcmf_usb_free_q(&devinfo->rx_freeq, false);
1046 brcmf_usb_free_q(&devinfo->tx_freeq, false);
1047
1048 usb_free_urb(devinfo->intr_urb);
1049 usb_free_urb(devinfo->ctl_urb);
1050 usb_free_urb(devinfo->bulk_urb);
1051
1052 kfree(devinfo->tx_reqs);
1053 kfree(devinfo->rx_reqs);
71bb244b
AS		 1054}
1055
1056#define TRX_MAGIC 0x30524448 /* "HDR0" */
1057#define TRX_VERSION 1 /* Version 1 */
1058#define TRX_MAX_LEN 0x3B0000 /* Max length */
1059#define TRX_NO_HEADER 1 /* Do not write TRX header */
1060#define TRX_MAX_OFFSET 3 /* Max number of individual files */
1061#define TRX_UNCOMP_IMAGE 0x20 /* Trx contains uncompressed image */
1062
1063struct trx_header_le {
1064 __le32 magic; /* "HDR0" */
1065 __le32 len; /* Length of file including header */
1066 __le32 crc32; /* CRC from flag_version to end of file */
1067 __le32 flag_version; /* 0:15 flags, 16:31 version */
1068 __le32 offsets[TRX_MAX_OFFSET]; /* Offsets of partitions from start of
1069 * header */
1070};
1071
1072static int check_file(const u8 *headers)
1073{
1074 struct trx_header_le *trx;
1075 int actual_len = -1;
1076
cb8b73da 1077 brcmf_dbg(USB, "Enter\n");
71bb244b
AS		 1078 /* Extract trx header */
1079 trx = (struct trx_header_le *) headers;
1080 if (trx->magic != cpu_to_le32(TRX_MAGIC))
1081 return -1;
1082
1083 headers += sizeof(struct trx_header_le);
1084
1085 if (le32_to_cpu(trx->flag_version) & TRX_UNCOMP_IMAGE) {
1086 actual_len = le32_to_cpu(trx->offsets[TRX_OFFSETS_DLFWLEN_IDX]);
1087 return actual_len + sizeof(struct trx_header_le);
1088 }
1089 return -1;
1090}
1091
1092static int brcmf_usb_get_fw(struct brcmf_usbdev_info *devinfo)
1093{
1094 s8 *fwname;
1095 const struct firmware *fw;
803599d4 1096 struct brcmf_usb_image *fw_image;
71bb244b
AS		 1097 int err;
1098
cb8b73da 1099 brcmf_dbg(USB, "Enter\n");
1212d370 1100 switch (devinfo->bus_pub.devid) {
70f0822c
HM		 1101 case 43143:
1102 fwname = BRCMF_USB_43143_FW_NAME;
1103 break;
1212d370
HM		 1104 case 43235:
1105 case 43236:
1106 case 43238:
1107 fwname = BRCMF_USB_43236_FW_NAME;
1108 break;
1109 case 43242:
1110 fwname = BRCMF_USB_43242_FW_NAME;
1111 break;
1112 default:
1113 return -EINVAL;
1114 break;
1115 }
cb8b73da 1116 brcmf_dbg(USB, "Loading FW %s\n", fwname);
803599d4
HM		 1117 list_for_each_entry(fw_image, &fw_image_list, list) {
1118 if (fw_image->fwname == fwname) {
1119 devinfo->image = fw_image->image;
1120 devinfo->image_len = fw_image->image_len;
1121 return 0;
1122 }
1123 }
1124 /* fw image not yet loaded. Load it now and add to list */
71bb244b
AS		 1125 err = request_firmware(&fw, fwname, devinfo->dev);
1126 if (!fw) {
5e8149f5 1127 brcmf_err("fail to request firmware %s\n", fwname);
71bb244b
AS		 1128 return err;
1129 }
1130 if (check_file(fw->data) < 0) {
5e8149f5 1131 brcmf_err("invalid firmware %s\n", fwname);
71bb244b
AS		 1132 return -EINVAL;
1133 }
1134
803599d4
HM		 1135 fw_image = kzalloc(sizeof(*fw_image), GFP_ATOMIC);
1136 if (!fw_image)
1137 return -ENOMEM;
1138 INIT_LIST_HEAD(&fw_image->list);
1139 list_add_tail(&fw_image->list, &fw_image_list);
1140 fw_image->fwname = fwname;
1141 fw_image->image = vmalloc(fw->size);
1142 if (!fw_image->image)
71bb244b
AS		 1143 return -ENOMEM;
1144
803599d4
HM		 1145 memcpy(fw_image->image, fw->data, fw->size);
1146 fw_image->image_len = fw->size;
71bb244b
AS		 1147
1148 release_firmware(fw);
803599d4
HM		 1149
1150 devinfo->image = fw_image->image;
1151 devinfo->image_len = fw_image->image_len;
1152
71bb244b
AS		 1153 return 0;
1154}
1155
1156
1157static
d74a0b51
HM		 1158struct brcmf_usbdev *brcmf_usb_attach(struct brcmf_usbdev_info *devinfo,
1159 int nrxq, int ntxq)
71bb244b 1160{
cb8b73da
HM		 1161 brcmf_dbg(USB, "Enter\n");
1162
71bb244b
AS		 1163 devinfo->bus_pub.nrxq = nrxq;
1164 devinfo->rx_low_watermark = nrxq / 2;
1165 devinfo->bus_pub.devinfo = devinfo;
1166 devinfo->bus_pub.ntxq = ntxq;
7c38e698 1167 devinfo->bus_pub.state = BRCMFMAC_USB_STATE_DOWN;
71bb244b
AS		 1168
1169 /* flow control when too many tx urbs posted */
1170 devinfo->tx_low_watermark = ntxq / 4;
1171 devinfo->tx_high_watermark = devinfo->tx_low_watermark * 3;
71bb244b
AS		 1172 devinfo->bus_pub.bus_mtu = BRCMF_USB_MAX_PKT_SIZE;
1173
1174 /* Initialize other structure content */
1175 init_waitqueue_head(&devinfo->ioctl_resp_wait);
1176
1177 /* Initialize the spinlocks */
1178 spin_lock_init(&devinfo->qlock);
1179
1180 INIT_LIST_HEAD(&devinfo->rx_freeq);
1181 INIT_LIST_HEAD(&devinfo->rx_postq);
1182
1183 INIT_LIST_HEAD(&devinfo->tx_freeq);
1184 INIT_LIST_HEAD(&devinfo->tx_postq);
1185
c6ab4294
HM		 1186 devinfo->tx_flowblock = false;
1187
71bb244b
AS		 1188 devinfo->rx_reqs = brcmf_usbdev_qinit(&devinfo->rx_freeq, nrxq);
1189 if (!devinfo->rx_reqs)
1190 goto error;
1191
1192 devinfo->tx_reqs = brcmf_usbdev_qinit(&devinfo->tx_freeq, ntxq);
1193 if (!devinfo->tx_reqs)
1194 goto error;
c6ab4294 1195 devinfo->tx_freecount = ntxq;
71bb244b
AS		 1196
1197 devinfo->intr_urb = usb_alloc_urb(0, GFP_ATOMIC);
1198 if (!devinfo->intr_urb) {
5e8149f5 1199 brcmf_err("usb_alloc_urb (intr) failed\n");
71bb244b
AS		 1200 goto error;
1201 }
1202 devinfo->ctl_urb = usb_alloc_urb(0, GFP_ATOMIC);
1203 if (!devinfo->ctl_urb) {
5e8149f5 1204 brcmf_err("usb_alloc_urb (ctl) failed\n");
71bb244b
AS		 1205 goto error;
1206 }
71bb244b
AS		 1207 devinfo->bulk_urb = usb_alloc_urb(0, GFP_ATOMIC);
1208 if (!devinfo->bulk_urb) {
5e8149f5 1209 brcmf_err("usb_alloc_urb (bulk) failed\n");
71bb244b
AS		 1210 goto error;
1211 }
1212
71bb244b
AS		 1213 if (!brcmf_usb_dlneeded(devinfo))
1214 return &devinfo->bus_pub;
1215
cb8b73da 1216 brcmf_dbg(USB, "Start fw downloading\n");
71bb244b
AS		 1217 if (brcmf_usb_get_fw(devinfo))
1218 goto error;
1219
1220 if (brcmf_usb_fw_download(devinfo))
1221 goto error;
1222
1223 return &devinfo->bus_pub;
1224
1225error:
5e8149f5 1226 brcmf_err("failed!\n");
d74a0b51 1227 brcmf_usb_detach(devinfo);
71bb244b
AS		 1228 return NULL;
1229}
1230
d9cb2596
AS		 1231static struct brcmf_bus_ops brcmf_usb_bus_ops = {
1232 .txdata = brcmf_usb_tx,
1233 .init = brcmf_usb_up,
1234 .stop = brcmf_usb_down,
1235 .txctl = brcmf_usb_tx_ctlpkt,
1236 .rxctl = brcmf_usb_rx_ctlpkt,
1237};
1238
b87e2c48 1239static int brcmf_usb_probe_cb(struct brcmf_usbdev_info *devinfo)
71bb244b
AS		 1240{
1241 struct brcmf_bus *bus = NULL;
1242 struct brcmf_usbdev *bus_pub = NULL;
1243 int ret;
d74a0b51 1244 struct device *dev = devinfo->dev;
71bb244b 1245
cb8b73da 1246 brcmf_dbg(USB, "Enter\n");
d74a0b51 1247 bus_pub = brcmf_usb_attach(devinfo, BRCMF_USB_NRXQ, BRCMF_USB_NTXQ);
9cd23a71
HM		 1248 if (!bus_pub)
1249 return -ENODEV;
71bb244b
AS		 1250
1251 bus = kzalloc(sizeof(struct brcmf_bus), GFP_ATOMIC);
1252 if (!bus) {
1253 ret = -ENOMEM;
1254 goto fail;
1255 }
1256
d9cb2596 1257 bus->dev = dev;
71bb244b 1258 bus_pub->bus = bus;
71bb244b
AS		 1259 bus->bus_priv.usb = bus_pub;
1260 dev_set_drvdata(dev, bus);
d9cb2596 1261 bus->ops = &brcmf_usb_bus_ops;
71bb244b
AS		 1262
1263 /* Attach to the common driver interface */
b87e2c48 1264 ret = brcmf_attach(0, dev);
71bb244b 1265 if (ret) {
5e8149f5 1266 brcmf_err("brcmf_attach failed\n");
71bb244b
AS		 1267 goto fail;
1268 }
1269
1270 ret = brcmf_bus_start(dev);
e270b302 1271 if (ret) {
5e8149f5 1272 brcmf_err("dongle is not responding\n");
71bb244b
AS		 1273 brcmf_detach(dev);
1274 goto fail;
1275 }
1276
71bb244b
AS		 1277 return 0;
1278fail:
1279 /* Release resources in reverse order */
71bb244b 1280 kfree(bus);
d74a0b51 1281 brcmf_usb_detach(devinfo);
71bb244b
AS		 1282 return ret;
1283}
1284
1285static void
d74a0b51 1286brcmf_usb_disconnect_cb(struct brcmf_usbdev_info *devinfo)
71bb244b 1287{
d74a0b51 1288 if (!devinfo)
71bb244b 1289 return;
cb8b73da 1290 brcmf_dbg(USB, "Enter, bus_pub %p\n", devinfo);
71bb244b 1291
d74a0b51
HM		 1292 brcmf_detach(devinfo->dev);
1293 kfree(devinfo->bus_pub.bus);
1294 brcmf_usb_detach(devinfo);
71bb244b
AS		 1295}
1296
1297static int
1298brcmf_usb_probe(struct usb_interface *intf, const struct usb_device_id *id)
1299{
1300 int ep;
1301 struct usb_endpoint_descriptor *endpoint;
1302 int ret = 0;
1303 struct usb_device *usb = interface_to_usbdev(intf);
1304 int num_of_eps;
1305 u8 endpoint_num;
d74a0b51 1306 struct brcmf_usbdev_info *devinfo;
71bb244b 1307
cb8b73da 1308 brcmf_dbg(USB, "Enter\n");
71bb244b 1309
d74a0b51
HM		 1310 devinfo = kzalloc(sizeof(*devinfo), GFP_ATOMIC);
1311 if (devinfo == NULL)
1312 return -ENOMEM;
71bb244b 1313
d74a0b51
HM		 1314 devinfo->usbdev = usb;
1315 devinfo->dev = &usb->dev;
71bb244b 1316
d74a0b51 1317 usb_set_intfdata(intf, devinfo);
71bb244b
AS		 1318
1319 /* Check that the device supports only one configuration */
1320 if (usb->descriptor.bNumConfigurations != 1) {
1321 ret = -1;
1322 goto fail;
1323 }
1324
1325 if (usb->descriptor.bDeviceClass != USB_CLASS_VENDOR_SPEC) {
1326 ret = -1;
1327 goto fail;
1328 }
1329
1330 /*
1331 * Only the BDC interface configuration is supported:
1332 * Device class: USB_CLASS_VENDOR_SPEC
1333 * if0 class: USB_CLASS_VENDOR_SPEC
1334 * if0/ep0: control
1335 * if0/ep1: bulk in
1336 * if0/ep2: bulk out (ok if swapped with bulk in)
1337 */
1338 if (CONFIGDESC(usb)->bNumInterfaces != 1) {
1339 ret = -1;
1340 goto fail;
1341 }
1342
1343 /* Check interface */
1344 if (IFDESC(usb, CONTROL_IF).bInterfaceClass != USB_CLASS_VENDOR_SPEC ||
1345 IFDESC(usb, CONTROL_IF).bInterfaceSubClass != 2 ||
1346 IFDESC(usb, CONTROL_IF).bInterfaceProtocol != 0xff) {
5e8149f5 1347 brcmf_err("invalid control interface: class %d, subclass %d, proto %d\n",
71bb244b
AS		 1348 IFDESC(usb, CONTROL_IF).bInterfaceClass,
1349 IFDESC(usb, CONTROL_IF).bInterfaceSubClass,
1350 IFDESC(usb, CONTROL_IF).bInterfaceProtocol);
1351 ret = -1;
1352 goto fail;
1353 }
1354
1355 /* Check control endpoint */
1356 endpoint = &IFEPDESC(usb, CONTROL_IF, 0);
1357 if ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
1358 != USB_ENDPOINT_XFER_INT) {
5e8149f5 1359 brcmf_err("invalid control endpoint %d\n",
71bb244b
AS		 1360 endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK);
1361 ret = -1;
1362 goto fail;
1363 }
1364
1365 endpoint_num = endpoint->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK;
d74a0b51 1366 devinfo->intr_pipe = usb_rcvintpipe(usb, endpoint_num);
71bb244b 1367
d74a0b51
HM		 1368 devinfo->rx_pipe = 0;
1369 devinfo->rx_pipe2 = 0;
1370 devinfo->tx_pipe = 0;
71bb244b
AS		 1371 num_of_eps = IFDESC(usb, BULK_IF).bNumEndpoints - 1;
1372
1373 /* Check data endpoints and get pipes */
1374 for (ep = 1; ep <= num_of_eps; ep++) {
1375 endpoint = &IFEPDESC(usb, BULK_IF, ep);
1376 if ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) !=
1377 USB_ENDPOINT_XFER_BULK) {
5e8149f5 1378 brcmf_err("invalid data endpoint %d\n", ep);
71bb244b
AS		 1379 ret = -1;
1380 goto fail;
1381 }
1382
1383 endpoint_num = endpoint->bEndpointAddress &
1384 USB_ENDPOINT_NUMBER_MASK;
1385 if ((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
1386 == USB_DIR_IN) {
d74a0b51
HM		 1387 if (!devinfo->rx_pipe) {
1388 devinfo->rx_pipe =
71bb244b
AS		 1389 usb_rcvbulkpipe(usb, endpoint_num);
1390 } else {
d74a0b51 1391 devinfo->rx_pipe2 =
71bb244b
AS		 1392 usb_rcvbulkpipe(usb, endpoint_num);
1393 }
1394 } else {
d74a0b51 1395 devinfo->tx_pipe = usb_sndbulkpipe(usb, endpoint_num);
71bb244b
AS		 1396 }
1397 }
1398
1399 /* Allocate interrupt URB and data buffer */
1400 /* RNDIS says 8-byte intr, our old drivers used 4-byte */
1401 if (IFEPDESC(usb, CONTROL_IF, 0).wMaxPacketSize == cpu_to_le16(16))
d74a0b51 1402 devinfo->intr_size = 8;
71bb244b 1403 else
d74a0b51 1404 devinfo->intr_size = 4;
71bb244b 1405
d74a0b51 1406 devinfo->interval = IFEPDESC(usb, CONTROL_IF, 0).bInterval;
71bb244b 1407
71bb244b 1408 if (usb->speed == USB_SPEED_HIGH)
cb8b73da 1409 brcmf_dbg(USB, "Broadcom high speed USB wireless device detected\n");
71bb244b 1410 else
cb8b73da 1411 brcmf_dbg(USB, "Broadcom full speed USB wireless device detected\n");
71bb244b 1412
b87e2c48 1413 ret = brcmf_usb_probe_cb(devinfo);
71bb244b
AS		 1414 if (ret)
1415 goto fail;
1416
1417 /* Success */
1418 return 0;
1419
1420fail:
5e8149f5 1421 brcmf_err("failed with errno %d\n", ret);
d74a0b51 1422 kfree(devinfo);
71bb244b
AS		 1423 usb_set_intfdata(intf, NULL);
1424 return ret;
1425
1426}
1427
1428static void
1429brcmf_usb_disconnect(struct usb_interface *intf)
1430{
d74a0b51 1431 struct brcmf_usbdev_info *devinfo;
71bb244b 1432
cb8b73da 1433 brcmf_dbg(USB, "Enter\n");
d74a0b51
HM		 1434 devinfo = (struct brcmf_usbdev_info *)usb_get_intfdata(intf);
1435 brcmf_usb_disconnect_cb(devinfo);
1436 kfree(devinfo);
cb8b73da 1437 brcmf_dbg(USB, "Exit\n");
71bb244b
AS		 1438}
1439
1440/*
7c38e698 1441 * only need to signal the bus being down and update the state.
71bb244b
AS		 1442 */
1443static int brcmf_usb_suspend(struct usb_interface *intf, pm_message_t state)
1444{
1445 struct usb_device *usb = interface_to_usbdev(intf);
1446 struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(&usb->dev);
1447
cb8b73da 1448 brcmf_dbg(USB, "Enter\n");
7c38e698
HM		 1449 devinfo->bus_pub.state = BRCMFMAC_USB_STATE_SLEEP;
1450 brcmf_detach(&usb->dev);
71bb244b
AS		 1451 return 0;
1452}
1453
1454/*
7c38e698 1455 * (re-) start the bus.
71bb244b
AS		 1456 */
1457static int brcmf_usb_resume(struct usb_interface *intf)
1458{
1459 struct usb_device *usb = interface_to_usbdev(intf);
1460 struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(&usb->dev);
1461
cb8b73da 1462 brcmf_dbg(USB, "Enter\n");
7c38e698
HM		 1463 if (!brcmf_attach(0, devinfo->dev))
1464 return brcmf_bus_start(&usb->dev);
1465
71bb244b
AS		 1466 return 0;
1467}
1468
7c38e698
HM		 1469static int brcmf_usb_reset_resume(struct usb_interface *intf)
1470{
1471 struct usb_device *usb = interface_to_usbdev(intf);
1472 struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(&usb->dev);
1473
1474 brcmf_dbg(USB, "Enter\n");
1475
1476 if (!brcmf_usb_fw_download(devinfo))
1477 return brcmf_usb_resume(intf);
1478
1479 return -EIO;
1480}
1481
71bb244b 1482#define BRCMF_USB_VENDOR_ID_BROADCOM 0x0a5c
70f0822c 1483#define BRCMF_USB_DEVICE_ID_43143 0xbd1e
71bb244b 1484#define BRCMF_USB_DEVICE_ID_43236 0xbd17
1212d370 1485#define BRCMF_USB_DEVICE_ID_43242 0xbd1f
71bb244b
AS		 1486#define BRCMF_USB_DEVICE_ID_BCMFW 0x0bdc
1487
1488static struct usb_device_id brcmf_usb_devid_table[] = {
70f0822c 1489 { USB_DEVICE(BRCMF_USB_VENDOR_ID_BROADCOM, BRCMF_USB_DEVICE_ID_43143) },
71bb244b 1490 { USB_DEVICE(BRCMF_USB_VENDOR_ID_BROADCOM, BRCMF_USB_DEVICE_ID_43236) },
1212d370 1491 { USB_DEVICE(BRCMF_USB_VENDOR_ID_BROADCOM, BRCMF_USB_DEVICE_ID_43242) },
71bb244b
AS		 1492 /* special entry for device with firmware loaded and running */
1493 { USB_DEVICE(BRCMF_USB_VENDOR_ID_BROADCOM, BRCMF_USB_DEVICE_ID_BCMFW) },
1494 { }
1495};
1496MODULE_DEVICE_TABLE(usb, brcmf_usb_devid_table);
70f0822c 1497MODULE_FIRMWARE(BRCMF_USB_43143_FW_NAME);
fda82417 1498MODULE_FIRMWARE(BRCMF_USB_43236_FW_NAME);
1212d370 1499MODULE_FIRMWARE(BRCMF_USB_43242_FW_NAME);
71bb244b 1500
71bb244b
AS		 1501static struct usb_driver brcmf_usbdrvr = {
1502 .name = KBUILD_MODNAME,
1503 .probe = brcmf_usb_probe,
1504 .disconnect = brcmf_usb_disconnect,
1505 .id_table = brcmf_usb_devid_table,
1506 .suspend = brcmf_usb_suspend,
1507 .resume = brcmf_usb_resume,
7c38e698 1508 .reset_resume = brcmf_usb_reset_resume,
c51fa668 1509 .supports_autosuspend = 1,
e1f12eb6 1510 .disable_hub_initiated_lpm = 1,
71bb244b
AS		 1511};
1512
803599d4
HM		 1513static void brcmf_release_fw(struct list_head *q)
1514{
1515 struct brcmf_usb_image *fw_image, *next;
1516
1517 list_for_each_entry_safe(fw_image, next, q, list) {
1518 vfree(fw_image->image);
1519 list_del_init(&fw_image->list);
1520 }
1521}
1522
1523
71bb244b
AS		 1524void brcmf_usb_exit(void)
1525{
cb8b73da 1526 brcmf_dbg(USB, "Enter\n");
71bb244b 1527 usb_deregister(&brcmf_usbdrvr);
803599d4 1528 brcmf_release_fw(&fw_image_list);
71bb244b
AS		 1529}
1530
549040ab 1531void brcmf_usb_init(void)
71bb244b 1532{
cb8b73da 1533 brcmf_dbg(USB, "Enter\n");
803599d4 1534 INIT_LIST_HEAD(&fw_image_list);
549040ab 1535 usb_register(&brcmf_usbdrvr);
71bb244b 1536}
Ubuntu Artful kernel mirror