blob: 34342ff718db05f5462cd75ab9c65efa2657f6ba [file] [log] [blame]
Arend van Spriel71bb2442012-02-09 21:09:08 +01001/*
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
Arend van Spriel71bb2442012-02-09 21:09:08 +010017#include <linux/kernel.h>
18#include <linux/module.h>
Arend van Spriel71bb2442012-02-09 21:09:08 +010019#include <linux/firmware.h>
20#include <linux/usb.h>
John W. Linvillee2ff0492012-11-19 11:04:28 -050021#include <linux/vmalloc.h>
Arend van Spriel71bb2442012-02-09 21:09:08 +010022
Arend van Spriel71bb2442012-02-09 21:09:08 +010023#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
Hante Meuleman83bc9c312012-11-14 18:46:06 -080033#define BRCMF_USB_RESET_GETVER_SPINWAIT 100 /* in unit of ms */
34#define BRCMF_USB_RESET_GETVER_LOOP_CNT 10
Arend van Spriel71bb2442012-02-09 21:09:08 +010035
36#define BRCMF_POSTBOOT_ID 0xA123 /* ID to detect if dongle
37 has boot up */
Arend van Spriel71bb2442012-02-09 21:09:08 +010038#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
Hante Meuleman70f08222012-08-30 19:43:01 +020054#define BRCMF_USB_43143_FW_NAME "brcm/brcmfmac43143.bin"
Rafał Miłeckifda82412012-02-24 07:22:51 +010055#define BRCMF_USB_43236_FW_NAME "brcm/brcmfmac43236b.bin"
Hante Meuleman1212d372012-08-30 19:43:00 +020056#define BRCMF_USB_43242_FW_NAME "brcm/brcmfmac43242a.bin"
Arend van Spriel71bb2442012-02-09 21:09:08 +010057
Arend van Spriel71bb2442012-02-09 21:09:08 +010058struct brcmf_usb_image {
Hante Meuleman803599d2012-09-19 22:21:10 +020059 struct list_head list;
60 s8 *fwname;
61 u8 *image;
62 int image_len;
Arend van Spriel71bb2442012-02-09 21:09:08 +010063};
Hante Meuleman803599d2012-09-19 22:21:10 +020064static struct list_head fw_image_list;
Arend van Spriel71bb2442012-02-09 21:09:08 +010065
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;
Arend van Spriel71bb2442012-02-09 21:09:08 +010078 uint rx_pipe, tx_pipe, intr_pipe, rx_pipe2;
79
Arend van Spriel71bb2442012-02-09 21:09:08 +010080 int rx_low_watermark;
81 int tx_low_watermark;
82 int tx_high_watermark;
Hante Meulemanc6ab4292012-09-11 21:18:48 +020083 int tx_freecount;
84 bool tx_flowblock;
Arend van Spriel71bb2442012-02-09 21:09:08 +010085
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
Arend van Spriel71bb2442012-02-09 21:09:08 +010092 struct usb_device *usbdev;
93 struct device *dev;
Arend van Spriel71bb2442012-02-09 21:09:08 +010094
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;
Arend van Spriel71bb2442012-02-09 21:09:08 +0100103 ulong ctl_op;
104
Arend van Spriel71bb2442012-02-09 21:09:08 +0100105 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 */
Arend van Spriel71bb2442012-02-09 21:09:08 +0100110};
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
Hante Meuleman70398a52012-09-27 14:17:47 +0200131static int brcmf_usb_ioctl_resp_wait(struct brcmf_usbdev_info *devinfo)
Arend van Spriel71bb2442012-02-09 21:09:08 +0100132{
Hante Meuleman70398a52012-09-27 14:17:47 +0200133 return wait_event_timeout(devinfo->ioctl_resp_wait,
134 devinfo->ctl_completed,
135 msecs_to_jiffies(IOCTL_RESP_TIMEOUT));
Arend van Spriel71bb2442012-02-09 21:09:08 +0100136}
137
Hante Meuleman70398a52012-09-27 14:17:47 +0200138static void brcmf_usb_ioctl_resp_wake(struct brcmf_usbdev_info *devinfo)
Arend van Spriel71bb2442012-02-09 21:09:08 +0100139{
140 if (waitqueue_active(&devinfo->ioctl_resp_wait))
Hante Meuleman70398a52012-09-27 14:17:47 +0200141 wake_up(&devinfo->ioctl_resp_wait);
Arend van Spriel71bb2442012-02-09 21:09:08 +0100142}
143
144static void
145brcmf_usb_ctl_complete(struct brcmf_usbdev_info *devinfo, int type, int status)
146{
Hante Meulemancb8b73d2012-11-05 16:22:31 -0800147 brcmf_dbg(USB, "Enter, status=%d\n", status);
Arend van Spriel71bb2442012-02-09 21:09:08 +0100148
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
Hante Meulemancb8b73d2012-11-05 16:22:31 -0800175 brcmf_dbg(USB, "Enter\n");
Arend van Spriel71bb2442012-02-09 21:09:08 +0100176 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
Hante Meulemancb8b73d2012-11-05 16:22:31 -0800187 brcmf_dbg(USB, "Enter\n");
Arend van Spriel71bb2442012-02-09 21:09:08 +0100188 brcmf_usb_ctl_complete(devinfo, BRCMF_USB_CBCTL_WRITE,
189 urb->status);
190}
191
Arend van Spriel71bb2442012-02-09 21:09:08 +0100192static int
193brcmf_usb_send_ctl(struct brcmf_usbdev_info *devinfo, u8 *buf, int len)
194{
195 int ret;
196 u16 size;
197
Hante Meulemancb8b73d2012-11-05 16:22:31 -0800198 brcmf_dbg(USB, "Enter\n");
Arend van Spriel71bb2442012-02-09 21:09:08 +0100199 if (devinfo == NULL || buf == NULL ||
200 len == 0 || devinfo->ctl_urb == NULL)
201 return -EINVAL;
202
Arend van Spriel71bb2442012-02-09 21:09:08 +0100203 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)
Arend van Spriel5e8149f2012-12-07 10:49:57 +0100219 brcmf_err("usb_submit_urb failed %d\n", ret);
Arend van Spriel71bb2442012-02-09 21:09:08 +0100220
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
Hante Meulemancb8b73d2012-11-05 16:22:31 -0800230 brcmf_dbg(USB, "Enter\n");
Arend van Spriel71bb2442012-02-09 21:09:08 +0100231 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
Hante Meuleman81643292012-09-19 22:21:14 +0200239 devinfo->ctl_read.bRequestType = USB_DIR_IN
240 | USB_TYPE_CLASS | USB_RECIP_INTERFACE;
241 devinfo->ctl_read.bRequest = 1;
Arend van Spriel71bb2442012-02-09 21:09:08 +0100242
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)
Arend van Spriel5e8149f2012-12-07 10:49:57 +0100253 brcmf_err("usb_submit_urb failed %d\n", ret);
Arend van Spriel71bb2442012-02-09 21:09:08 +0100254
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;
Arend van Spriel71bb2442012-02-09 21:09:08 +0100262 struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(dev);
263
Hante Meulemancb8b73d2012-11-05 16:22:31 -0800264 brcmf_dbg(USB, "Enter\n");
Hante Meuleman7c38e692012-11-14 18:46:07 -0800265 if (devinfo->bus_pub.state != BRCMFMAC_USB_STATE_UP)
Arend van Spriel71bb2442012-02-09 21:09:08 +0100266 return -EIO;
Arend van Spriel71bb2442012-02-09 21:09:08 +0100267
268 if (test_and_set_bit(0, &devinfo->ctl_op))
269 return -EIO;
270
Hante Meulemana77f5742012-08-30 19:42:58 +0200271 devinfo->ctl_completed = false;
Arend van Spriel71bb2442012-02-09 21:09:08 +0100272 err = brcmf_usb_send_ctl(devinfo, buf, len);
273 if (err) {
Arend van Spriel5e8149f2012-12-07 10:49:57 +0100274 brcmf_err("fail %d bytes: %d\n", err, len);
Hante Meuleman6385df22012-09-19 22:21:16 +0200275 clear_bit(0, &devinfo->ctl_op);
Arend van Spriel71bb2442012-02-09 21:09:08 +0100276 return err;
277 }
Hante Meuleman70398a52012-09-27 14:17:47 +0200278 timeout = brcmf_usb_ioctl_resp_wait(devinfo);
Arend van Spriel71bb2442012-02-09 21:09:08 +0100279 clear_bit(0, &devinfo->ctl_op);
280 if (!timeout) {
Arend van Spriel5e8149f2012-12-07 10:49:57 +0100281 brcmf_err("Txctl wait timed out\n");
Arend van Spriel71bb2442012-02-09 21:09:08 +0100282 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;
Arend van Spriel71bb2442012-02-09 21:09:08 +0100291 struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(dev);
292
Hante Meulemancb8b73d2012-11-05 16:22:31 -0800293 brcmf_dbg(USB, "Enter\n");
Hante Meuleman7c38e692012-11-14 18:46:07 -0800294 if (devinfo->bus_pub.state != BRCMFMAC_USB_STATE_UP)
Arend van Spriel71bb2442012-02-09 21:09:08 +0100295 return -EIO;
Hante Meuleman7c38e692012-11-14 18:46:07 -0800296
Arend van Spriel71bb2442012-02-09 21:09:08 +0100297 if (test_and_set_bit(0, &devinfo->ctl_op))
298 return -EIO;
299
Hante Meuleman70398a52012-09-27 14:17:47 +0200300 devinfo->ctl_completed = false;
Arend van Spriel71bb2442012-02-09 21:09:08 +0100301 err = brcmf_usb_recv_ctl(devinfo, buf, len);
302 if (err) {
Arend van Spriel5e8149f2012-12-07 10:49:57 +0100303 brcmf_err("fail %d bytes: %d\n", err, len);
Hante Meuleman6385df22012-09-19 22:21:16 +0200304 clear_bit(0, &devinfo->ctl_op);
Arend van Spriel71bb2442012-02-09 21:09:08 +0100305 return err;
306 }
Hante Meuleman70398a52012-09-27 14:17:47 +0200307 timeout = brcmf_usb_ioctl_resp_wait(devinfo);
Arend van Spriel71bb2442012-02-09 21:09:08 +0100308 err = devinfo->ctl_urb_status;
309 clear_bit(0, &devinfo->ctl_op);
310 if (!timeout) {
Arend van Spriel5e8149f2012-12-07 10:49:57 +0100311 brcmf_err("rxctl wait timed out\n");
Arend van Spriel71bb2442012-02-09 21:09:08 +0100312 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,
Hante Meulemanc6ab4292012-09-11 21:18:48 +0200321 struct list_head *q, int *counter)
Arend van Spriel71bb2442012-02-09 21:09:08 +0100322{
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);
Hante Meulemanc6ab4292012-09-11 21:18:48 +0200332 if (counter)
333 (*counter)--;
Arend van Spriel71bb2442012-02-09 21:09:08 +0100334 spin_unlock_irqrestore(&devinfo->qlock, flags);
335 return req;
336
337}
338
339static void brcmf_usb_enq(struct brcmf_usbdev_info *devinfo,
Hante Meulemanc6ab4292012-09-11 21:18:48 +0200340 struct list_head *q, struct brcmf_usbreq *req,
341 int *counter)
Arend van Spriel71bb2442012-02-09 21:09:08 +0100342{
343 unsigned long flags;
344 spin_lock_irqsave(&devinfo->qlock, flags);
345 list_add_tail(&req->list, q);
Hante Meulemanc6ab4292012-09-11 21:18:48 +0200346 if (counter)
347 (*counter)++;
Arend van Spriel71bb2442012-02-09 21:09:08 +0100348 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) {
Arend van Spriel5e8149f2012-12-07 10:49:57 +0100359 brcmf_err("fail to allocate memory!\n");
Arend van Spriel71bb2442012-02-09 21:09:08 +0100360 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:
Arend van Spriel5e8149f2012-12-07 10:49:57 +0100375 brcmf_err("fail!\n");
Arend van Spriel71bb2442012-02-09 21:09:08 +0100376 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) {
Dan Carpenterd4ca0092012-02-24 09:22:27 +0300391 if (!req->urb) {
Arend van Spriel5e8149f2012-12-07 10:49:57 +0100392 brcmf_err("bad req\n");
Arend van Spriel71bb2442012-02-09 21:09:08 +0100393 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
Hante Meulemancb8b73d2012-11-05 16:22:31 -0800421 brcmf_dbg(USB, "Enter, urb->status=%d, skb=%p\n", urb->status,
422 req->skb);
Arend van Spriel71bb2442012-02-09 21:09:08 +0100423 brcmf_usb_del_fromq(devinfo, req);
424 if (urb->status == 0)
Arend van Spriel1d9c1792012-03-02 22:55:47 +0100425 devinfo->bus_pub.bus->dstats.tx_packets++;
Arend van Spriel71bb2442012-02-09 21:09:08 +0100426 else
Arend van Spriel1d9c1792012-03-02 22:55:47 +0100427 devinfo->bus_pub.bus->dstats.tx_errors++;
Arend van Spriel71bb2442012-02-09 21:09:08 +0100428
Hante Meuleman1e2d9582012-09-27 14:17:50 +0200429 brcmf_txcomplete(devinfo->dev, req->skb, urb->status == 0);
430
Arend van Spriel01e33312012-08-30 10:05:34 +0200431 brcmu_pkt_buf_free_skb(req->skb);
Arend van Spriel71bb2442012-02-09 21:09:08 +0100432 req->skb = NULL;
Hante Meulemanc6ab4292012-09-11 21:18:48 +0200433 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 }
Arend van Spriel71bb2442012-02-09 21:09:08 +0100439}
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;
Arend van Spriel3aa7aad2013-01-02 15:22:42 +0100446 struct sk_buff_head skbq;
Arend van Spriel71bb2442012-02-09 21:09:08 +0100447 int ifidx = 0;
448
Hante Meulemancb8b73d2012-11-05 16:22:31 -0800449 brcmf_dbg(USB, "Enter, urb->status=%d\n", urb->status);
Arend van Spriel71bb2442012-02-09 21:09:08 +0100450 brcmf_usb_del_fromq(devinfo, req);
451 skb = req->skb;
452 req->skb = NULL;
453
454 if (urb->status == 0) {
Arend van Spriel1d9c1792012-03-02 22:55:47 +0100455 devinfo->bus_pub.bus->dstats.rx_packets++;
Arend van Spriel71bb2442012-02-09 21:09:08 +0100456 } else {
Arend van Spriel1d9c1792012-03-02 22:55:47 +0100457 devinfo->bus_pub.bus->dstats.rx_errors++;
Arend van Spriel01e33312012-08-30 10:05:34 +0200458 brcmu_pkt_buf_free_skb(skb);
Hante Meulemanc6ab4292012-09-11 21:18:48 +0200459 brcmf_usb_enq(devinfo, &devinfo->rx_freeq, req, NULL);
Arend van Spriel71bb2442012-02-09 21:09:08 +0100460 return;
461 }
462
Hante Meuleman7c38e692012-11-14 18:46:07 -0800463 if (devinfo->bus_pub.state == BRCMFMAC_USB_STATE_UP) {
Arend van Spriel3aa7aad2013-01-02 15:22:42 +0100464 skb_queue_head_init(&skbq);
465 skb_queue_tail(&skbq, skb);
Arend van Spriel71bb2442012-02-09 21:09:08 +0100466 skb_put(skb, urb->actual_length);
467 if (brcmf_proto_hdrpull(devinfo->dev, &ifidx, skb) != 0) {
Arend van Spriel5e8149f2012-12-07 10:49:57 +0100468 brcmf_err("rx protocol error\n");
Arend van Spriel71bb2442012-02-09 21:09:08 +0100469 brcmu_pkt_buf_free_skb(skb);
470 devinfo->bus_pub.bus->dstats.rx_errors++;
Hante Meuleman64477eb2012-09-11 21:18:50 +0200471 } else
Arend van Spriel3aa7aad2013-01-02 15:22:42 +0100472 brcmf_rx_frames(devinfo->dev, ifidx, &skbq);
Hante Meuleman0429a6f2013-01-02 15:22:38 +0100473 /* zero lenght packets indicate usb "failure". Do not refill */
474 if (urb->actual_length)
475 brcmf_usb_rx_refill(devinfo, req);
476 else
477 brcmf_usb_enq(devinfo, &devinfo->rx_freeq, req, NULL);
Arend van Spriel71bb2442012-02-09 21:09:08 +0100478 } else {
Arend van Spriel01e33312012-08-30 10:05:34 +0200479 brcmu_pkt_buf_free_skb(skb);
Hante Meulemanc6ab4292012-09-11 21:18:48 +0200480 brcmf_usb_enq(devinfo, &devinfo->rx_freeq, req, NULL);
Arend van Spriel71bb2442012-02-09 21:09:08 +0100481 }
482 return;
483
484}
485
486static void brcmf_usb_rx_refill(struct brcmf_usbdev_info *devinfo,
487 struct brcmf_usbreq *req)
488{
489 struct sk_buff *skb;
490 int ret;
491
492 if (!req || !devinfo)
493 return;
494
495 skb = dev_alloc_skb(devinfo->bus_pub.bus_mtu);
496 if (!skb) {
Hante Meulemanc6ab4292012-09-11 21:18:48 +0200497 brcmf_usb_enq(devinfo, &devinfo->rx_freeq, req, NULL);
Arend van Spriel71bb2442012-02-09 21:09:08 +0100498 return;
499 }
500 req->skb = skb;
501
502 usb_fill_bulk_urb(req->urb, devinfo->usbdev, devinfo->rx_pipe,
503 skb->data, skb_tailroom(skb), brcmf_usb_rx_complete,
504 req);
Arend van Spriel71bb2442012-02-09 21:09:08 +0100505 req->devinfo = devinfo;
Hante Meulemanc6ab4292012-09-11 21:18:48 +0200506 brcmf_usb_enq(devinfo, &devinfo->rx_postq, req, NULL);
Arend van Spriel71bb2442012-02-09 21:09:08 +0100507
508 ret = usb_submit_urb(req->urb, GFP_ATOMIC);
Hante Meuleman2e875ac2012-08-30 10:05:36 +0200509 if (ret) {
510 brcmf_usb_del_fromq(devinfo, req);
Arend van Spriel01e33312012-08-30 10:05:34 +0200511 brcmu_pkt_buf_free_skb(req->skb);
Arend van Spriel71bb2442012-02-09 21:09:08 +0100512 req->skb = NULL;
Hante Meulemanc6ab4292012-09-11 21:18:48 +0200513 brcmf_usb_enq(devinfo, &devinfo->rx_freeq, req, NULL);
Arend van Spriel71bb2442012-02-09 21:09:08 +0100514 }
515 return;
516}
517
518static void brcmf_usb_rx_fill_all(struct brcmf_usbdev_info *devinfo)
519{
520 struct brcmf_usbreq *req;
521
Hante Meuleman7c38e692012-11-14 18:46:07 -0800522 if (devinfo->bus_pub.state != BRCMFMAC_USB_STATE_UP) {
Arend van Spriel5e8149f2012-12-07 10:49:57 +0100523 brcmf_err("bus is not up=%d\n", devinfo->bus_pub.state);
Arend van Spriel71bb2442012-02-09 21:09:08 +0100524 return;
525 }
Hante Meulemanc6ab4292012-09-11 21:18:48 +0200526 while ((req = brcmf_usb_deq(devinfo, &devinfo->rx_freeq, NULL)) != NULL)
Arend van Spriel71bb2442012-02-09 21:09:08 +0100527 brcmf_usb_rx_refill(devinfo, req);
528}
529
530static void
531brcmf_usb_state_change(struct brcmf_usbdev_info *devinfo, int state)
532{
533 struct brcmf_bus *bcmf_bus = devinfo->bus_pub.bus;
534 int old_state;
535
Hante Meulemancb8b73d2012-11-05 16:22:31 -0800536 brcmf_dbg(USB, "Enter, current state=%d, new state=%d\n",
537 devinfo->bus_pub.state, state);
Arend van Spriel71bb2442012-02-09 21:09:08 +0100538
539 if (devinfo->bus_pub.state == state)
540 return;
541
542 old_state = devinfo->bus_pub.state;
Hante Meuleman7c38e692012-11-14 18:46:07 -0800543 devinfo->bus_pub.state = state;
Arend van Spriel71bb2442012-02-09 21:09:08 +0100544
545 /* update state of upper layer */
Hante Meuleman7c38e692012-11-14 18:46:07 -0800546 if (state == BRCMFMAC_USB_STATE_DOWN) {
Hante Meulemancb8b73d2012-11-05 16:22:31 -0800547 brcmf_dbg(USB, "DBUS is down\n");
Arend van Spriel71bb2442012-02-09 21:09:08 +0100548 bcmf_bus->state = BRCMF_BUS_DOWN;
Hante Meuleman7c38e692012-11-14 18:46:07 -0800549 } else if (state == BRCMFMAC_USB_STATE_UP) {
550 brcmf_dbg(USB, "DBUS is up\n");
551 bcmf_bus->state = BRCMF_BUS_DATA;
Arend van Spriel71bb2442012-02-09 21:09:08 +0100552 } else {
Hante Meulemancb8b73d2012-11-05 16:22:31 -0800553 brcmf_dbg(USB, "DBUS current state=%d\n", state);
Arend van Spriel71bb2442012-02-09 21:09:08 +0100554 }
555}
556
557static void
558brcmf_usb_intr_complete(struct urb *urb)
559{
560 struct brcmf_usbdev_info *devinfo =
561 (struct brcmf_usbdev_info *)urb->context;
Hante Meuleman7c38e692012-11-14 18:46:07 -0800562 int err;
Arend van Spriel71bb2442012-02-09 21:09:08 +0100563
Hante Meulemancb8b73d2012-11-05 16:22:31 -0800564 brcmf_dbg(USB, "Enter, urb->status=%d\n", urb->status);
565
Arend van Spriel71bb2442012-02-09 21:09:08 +0100566 if (devinfo == NULL)
567 return;
568
569 if (unlikely(urb->status)) {
Hante Meuleman7c38e692012-11-14 18:46:07 -0800570 if (urb->status == -ENOENT ||
571 urb->status == -ESHUTDOWN ||
572 urb->status == -ENODEV) {
573 brcmf_usb_state_change(devinfo,
574 BRCMFMAC_USB_STATE_DOWN);
Arend van Spriel71bb2442012-02-09 21:09:08 +0100575 }
576 }
577
Hante Meuleman7c38e692012-11-14 18:46:07 -0800578 if (devinfo->bus_pub.state == BRCMFMAC_USB_STATE_DOWN) {
Arend van Spriel5e8149f2012-12-07 10:49:57 +0100579 brcmf_err("intr cb when DBUS down, ignoring\n");
Arend van Spriel71bb2442012-02-09 21:09:08 +0100580 return;
581 }
582
Hante Meuleman7c38e692012-11-14 18:46:07 -0800583 if (devinfo->bus_pub.state == BRCMFMAC_USB_STATE_UP) {
584 err = usb_submit_urb(devinfo->intr_urb, GFP_ATOMIC);
585 if (err)
Arend van Spriel5e8149f2012-12-07 10:49:57 +0100586 brcmf_err("usb_submit_urb, err=%d\n", err);
Hante Meuleman7c38e692012-11-14 18:46:07 -0800587 }
Arend van Spriel71bb2442012-02-09 21:09:08 +0100588}
589
590static int brcmf_usb_tx(struct device *dev, struct sk_buff *skb)
591{
592 struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(dev);
593 struct brcmf_usbreq *req;
594 int ret;
595
Hante Meulemancb8b73d2012-11-05 16:22:31 -0800596 brcmf_dbg(USB, "Enter, skb=%p\n", skb);
Hante Meuleman7c38e692012-11-14 18:46:07 -0800597 if (devinfo->bus_pub.state != BRCMFMAC_USB_STATE_UP)
Arend van Spriel71bb2442012-02-09 21:09:08 +0100598 return -EIO;
Arend van Spriel71bb2442012-02-09 21:09:08 +0100599
Hante Meulemanc6ab4292012-09-11 21:18:48 +0200600 req = brcmf_usb_deq(devinfo, &devinfo->tx_freeq,
601 &devinfo->tx_freecount);
Arend van Spriel71bb2442012-02-09 21:09:08 +0100602 if (!req) {
Hante Meuleman2e875ac2012-08-30 10:05:36 +0200603 brcmu_pkt_buf_free_skb(skb);
Arend van Spriel5e8149f2012-12-07 10:49:57 +0100604 brcmf_err("no req to send\n");
Arend van Spriel71bb2442012-02-09 21:09:08 +0100605 return -ENOMEM;
606 }
Arend van Spriel71bb2442012-02-09 21:09:08 +0100607
608 req->skb = skb;
609 req->devinfo = devinfo;
610 usb_fill_bulk_urb(req->urb, devinfo->usbdev, devinfo->tx_pipe,
611 skb->data, skb->len, brcmf_usb_tx_complete, req);
612 req->urb->transfer_flags |= URB_ZERO_PACKET;
Hante Meulemanc6ab4292012-09-11 21:18:48 +0200613 brcmf_usb_enq(devinfo, &devinfo->tx_postq, req, NULL);
Arend van Spriel71bb2442012-02-09 21:09:08 +0100614 ret = usb_submit_urb(req->urb, GFP_ATOMIC);
Hante Meuleman2e875ac2012-08-30 10:05:36 +0200615 if (ret) {
Arend van Spriel5e8149f2012-12-07 10:49:57 +0100616 brcmf_err("brcmf_usb_tx usb_submit_urb FAILED\n");
Hante Meuleman2e875ac2012-08-30 10:05:36 +0200617 brcmf_usb_del_fromq(devinfo, req);
618 brcmu_pkt_buf_free_skb(req->skb);
Arend van Spriel71bb2442012-02-09 21:09:08 +0100619 req->skb = NULL;
Hante Meulemanc6ab4292012-09-11 21:18:48 +0200620 brcmf_usb_enq(devinfo, &devinfo->tx_freeq, req,
621 &devinfo->tx_freecount);
622 } else {
623 if (devinfo->tx_freecount < devinfo->tx_low_watermark &&
624 !devinfo->tx_flowblock) {
625 brcmf_txflowblock(dev, true);
626 devinfo->tx_flowblock = true;
627 }
Arend van Spriel71bb2442012-02-09 21:09:08 +0100628 }
629
630 return ret;
631}
632
633
634static int brcmf_usb_up(struct device *dev)
635{
636 struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(dev);
637 u16 ifnum;
Hante Meuleman7c38e692012-11-14 18:46:07 -0800638 int ret;
Arend van Spriel71bb2442012-02-09 21:09:08 +0100639
Hante Meulemancb8b73d2012-11-05 16:22:31 -0800640 brcmf_dbg(USB, "Enter\n");
Hante Meuleman7c38e692012-11-14 18:46:07 -0800641 if (devinfo->bus_pub.state == BRCMFMAC_USB_STATE_UP)
Dan Carpenterd4ca0092012-02-24 09:22:27 +0300642 return 0;
643
Arend van Spriel71bb2442012-02-09 21:09:08 +0100644 /* Success, indicate devinfo is fully up */
Hante Meuleman7c38e692012-11-14 18:46:07 -0800645 brcmf_usb_state_change(devinfo, BRCMFMAC_USB_STATE_UP);
Arend van Spriel71bb2442012-02-09 21:09:08 +0100646
647 if (devinfo->intr_urb) {
Arend van Spriel71bb2442012-02-09 21:09:08 +0100648 usb_fill_int_urb(devinfo->intr_urb, devinfo->usbdev,
649 devinfo->intr_pipe,
650 &devinfo->intr,
651 devinfo->intr_size,
652 (usb_complete_t)brcmf_usb_intr_complete,
653 devinfo,
654 devinfo->interval);
655
656 ret = usb_submit_urb(devinfo->intr_urb, GFP_ATOMIC);
657 if (ret) {
Arend van Spriel5e8149f2012-12-07 10:49:57 +0100658 brcmf_err("USB_SUBMIT_URB failed with status %d\n",
Arend van Spriel71bb2442012-02-09 21:09:08 +0100659 ret);
660 return -EINVAL;
661 }
662 }
663
664 if (devinfo->ctl_urb) {
665 devinfo->ctl_in_pipe = usb_rcvctrlpipe(devinfo->usbdev, 0);
666 devinfo->ctl_out_pipe = usb_sndctrlpipe(devinfo->usbdev, 0);
667
668 ifnum = IFDESC(devinfo->usbdev, CONTROL_IF).bInterfaceNumber;
669
670 /* CTL Write */
671 devinfo->ctl_write.bRequestType =
672 USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE;
673 devinfo->ctl_write.bRequest = 0;
674 devinfo->ctl_write.wValue = cpu_to_le16(0);
675 devinfo->ctl_write.wIndex = cpu_to_le16p(&ifnum);
676
677 /* CTL Read */
678 devinfo->ctl_read.bRequestType =
679 USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE;
680 devinfo->ctl_read.bRequest = 1;
681 devinfo->ctl_read.wValue = cpu_to_le16(0);
682 devinfo->ctl_read.wIndex = cpu_to_le16p(&ifnum);
683 }
684 brcmf_usb_rx_fill_all(devinfo);
685 return 0;
686}
687
688static void brcmf_usb_down(struct device *dev)
689{
690 struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(dev);
691
Hante Meulemancb8b73d2012-11-05 16:22:31 -0800692 brcmf_dbg(USB, "Enter\n");
Arend van Spriel71bb2442012-02-09 21:09:08 +0100693 if (devinfo == NULL)
694 return;
695
Hante Meuleman7c38e692012-11-14 18:46:07 -0800696 if (devinfo->bus_pub.state == BRCMFMAC_USB_STATE_DOWN)
Arend van Spriel71bb2442012-02-09 21:09:08 +0100697 return;
698
Hante Meuleman7c38e692012-11-14 18:46:07 -0800699 brcmf_usb_state_change(devinfo, BRCMFMAC_USB_STATE_DOWN);
Arend van Spriel71bb2442012-02-09 21:09:08 +0100700 if (devinfo->intr_urb)
701 usb_kill_urb(devinfo->intr_urb);
702
703 if (devinfo->ctl_urb)
704 usb_kill_urb(devinfo->ctl_urb);
705
706 if (devinfo->bulk_urb)
707 usb_kill_urb(devinfo->bulk_urb);
708 brcmf_usb_free_q(&devinfo->tx_postq, true);
709
710 brcmf_usb_free_q(&devinfo->rx_postq, true);
711}
712
Arend van Spriel71bb2442012-02-09 21:09:08 +0100713static void
714brcmf_usb_sync_complete(struct urb *urb)
715{
716 struct brcmf_usbdev_info *devinfo =
717 (struct brcmf_usbdev_info *)urb->context;
718
Hante Meuleman1e271c92012-10-22 10:36:18 -0700719 devinfo->ctl_completed = true;
720 brcmf_usb_ioctl_resp_wake(devinfo);
Arend van Spriel71bb2442012-02-09 21:09:08 +0100721}
722
723static bool brcmf_usb_dl_cmd(struct brcmf_usbdev_info *devinfo, u8 cmd,
724 void *buffer, int buflen)
725{
726 int ret = 0;
727 char *tmpbuf;
728 u16 size;
729
730 if ((!devinfo) || (devinfo->ctl_urb == NULL))
731 return false;
732
733 tmpbuf = kmalloc(buflen, GFP_ATOMIC);
734 if (!tmpbuf)
735 return false;
736
737 size = buflen;
738 devinfo->ctl_urb->transfer_buffer_length = size;
739
740 devinfo->ctl_read.wLength = cpu_to_le16p(&size);
741 devinfo->ctl_read.bRequestType = USB_DIR_IN | USB_TYPE_VENDOR |
742 USB_RECIP_INTERFACE;
743 devinfo->ctl_read.bRequest = cmd;
744
745 usb_fill_control_urb(devinfo->ctl_urb,
746 devinfo->usbdev,
747 usb_rcvctrlpipe(devinfo->usbdev, 0),
748 (unsigned char *) &devinfo->ctl_read,
749 (void *) tmpbuf, size,
750 (usb_complete_t)brcmf_usb_sync_complete, devinfo);
751
Hante Meuleman1e271c92012-10-22 10:36:18 -0700752 devinfo->ctl_completed = false;
Arend van Spriel71bb2442012-02-09 21:09:08 +0100753 ret = usb_submit_urb(devinfo->ctl_urb, GFP_ATOMIC);
754 if (ret < 0) {
Arend van Spriel5e8149f2012-12-07 10:49:57 +0100755 brcmf_err("usb_submit_urb failed %d\n", ret);
Arend van Spriel71bb2442012-02-09 21:09:08 +0100756 kfree(tmpbuf);
757 return false;
758 }
759
Hante Meuleman1e271c92012-10-22 10:36:18 -0700760 ret = brcmf_usb_ioctl_resp_wait(devinfo);
Arend van Spriel71bb2442012-02-09 21:09:08 +0100761 memcpy(buffer, tmpbuf, buflen);
762 kfree(tmpbuf);
763
Hante Meuleman1e271c92012-10-22 10:36:18 -0700764 return ret;
Arend van Spriel71bb2442012-02-09 21:09:08 +0100765}
766
767static bool
768brcmf_usb_dlneeded(struct brcmf_usbdev_info *devinfo)
769{
770 struct bootrom_id_le id;
771 u32 chipid, chiprev;
772
Hante Meulemancb8b73d2012-11-05 16:22:31 -0800773 brcmf_dbg(USB, "Enter\n");
Arend van Spriel71bb2442012-02-09 21:09:08 +0100774
775 if (devinfo == NULL)
776 return false;
777
778 /* Check if firmware downloaded already by querying runtime ID */
779 id.chip = cpu_to_le32(0xDEAD);
Hante Meuleman83bc9c312012-11-14 18:46:06 -0800780 brcmf_usb_dl_cmd(devinfo, DL_GETVER, &id, sizeof(id));
Arend van Spriel71bb2442012-02-09 21:09:08 +0100781
782 chipid = le32_to_cpu(id.chip);
783 chiprev = le32_to_cpu(id.chiprev);
784
785 if ((chipid & 0x4300) == 0x4300)
Hante Meulemancb8b73d2012-11-05 16:22:31 -0800786 brcmf_dbg(USB, "chip %x rev 0x%x\n", chipid, chiprev);
Arend van Spriel71bb2442012-02-09 21:09:08 +0100787 else
Hante Meulemancb8b73d2012-11-05 16:22:31 -0800788 brcmf_dbg(USB, "chip %d rev 0x%x\n", chipid, chiprev);
Arend van Spriel71bb2442012-02-09 21:09:08 +0100789 if (chipid == BRCMF_POSTBOOT_ID) {
Hante Meulemancb8b73d2012-11-05 16:22:31 -0800790 brcmf_dbg(USB, "firmware already downloaded\n");
Hante Meuleman83bc9c312012-11-14 18:46:06 -0800791 brcmf_usb_dl_cmd(devinfo, DL_RESETCFG, &id, sizeof(id));
Arend van Spriel71bb2442012-02-09 21:09:08 +0100792 return false;
793 } else {
Arend van Sprielac94f192012-03-02 22:55:46 +0100794 devinfo->bus_pub.devid = chipid;
795 devinfo->bus_pub.chiprev = chiprev;
Arend van Spriel71bb2442012-02-09 21:09:08 +0100796 }
797 return true;
798}
799
800static int
801brcmf_usb_resetcfg(struct brcmf_usbdev_info *devinfo)
802{
803 struct bootrom_id_le id;
Hante Meuleman83bc9c312012-11-14 18:46:06 -0800804 u32 loop_cnt;
Arend van Spriel71bb2442012-02-09 21:09:08 +0100805
Hante Meulemancb8b73d2012-11-05 16:22:31 -0800806 brcmf_dbg(USB, "Enter\n");
Arend van Spriel71bb2442012-02-09 21:09:08 +0100807
Hante Meuleman83bc9c312012-11-14 18:46:06 -0800808 loop_cnt = 0;
809 do {
810 mdelay(BRCMF_USB_RESET_GETVER_SPINWAIT);
811 loop_cnt++;
Arend van Spriel71bb2442012-02-09 21:09:08 +0100812 id.chip = cpu_to_le32(0xDEAD); /* Get the ID */
Hante Meuleman83bc9c312012-11-14 18:46:06 -0800813 brcmf_usb_dl_cmd(devinfo, DL_GETVER, &id, sizeof(id));
Arend van Spriel71bb2442012-02-09 21:09:08 +0100814 if (id.chip == cpu_to_le32(BRCMF_POSTBOOT_ID))
815 break;
Hante Meuleman83bc9c312012-11-14 18:46:06 -0800816 } while (loop_cnt < BRCMF_USB_RESET_GETVER_LOOP_CNT);
Arend van Spriel71bb2442012-02-09 21:09:08 +0100817
818 if (id.chip == cpu_to_le32(BRCMF_POSTBOOT_ID)) {
Hante Meuleman83bc9c312012-11-14 18:46:06 -0800819 brcmf_dbg(USB, "postboot chip 0x%x/rev 0x%x\n",
820 le32_to_cpu(id.chip), le32_to_cpu(id.chiprev));
Arend van Spriel71bb2442012-02-09 21:09:08 +0100821
Hante Meuleman83bc9c312012-11-14 18:46:06 -0800822 brcmf_usb_dl_cmd(devinfo, DL_RESETCFG, &id, sizeof(id));
Arend van Spriel71bb2442012-02-09 21:09:08 +0100823 return 0;
824 } else {
Arend van Spriel5e8149f2012-12-07 10:49:57 +0100825 brcmf_err("Cannot talk to Dongle. Firmware is not UP, %d ms\n",
Hante Meuleman83bc9c312012-11-14 18:46:06 -0800826 BRCMF_USB_RESET_GETVER_SPINWAIT * loop_cnt);
Arend van Spriel71bb2442012-02-09 21:09:08 +0100827 return -EINVAL;
828 }
829}
830
831
832static int
833brcmf_usb_dl_send_bulk(struct brcmf_usbdev_info *devinfo, void *buffer, int len)
834{
835 int ret;
836
837 if ((devinfo == NULL) || (devinfo->bulk_urb == NULL))
838 return -EINVAL;
839
840 /* Prepare the URB */
841 usb_fill_bulk_urb(devinfo->bulk_urb, devinfo->usbdev,
842 devinfo->tx_pipe, buffer, len,
843 (usb_complete_t)brcmf_usb_sync_complete, devinfo);
844
845 devinfo->bulk_urb->transfer_flags |= URB_ZERO_PACKET;
846
Hante Meuleman1e271c92012-10-22 10:36:18 -0700847 devinfo->ctl_completed = false;
Arend van Spriel71bb2442012-02-09 21:09:08 +0100848 ret = usb_submit_urb(devinfo->bulk_urb, GFP_ATOMIC);
849 if (ret) {
Arend van Spriel5e8149f2012-12-07 10:49:57 +0100850 brcmf_err("usb_submit_urb failed %d\n", ret);
Arend van Spriel71bb2442012-02-09 21:09:08 +0100851 return ret;
852 }
Hante Meuleman1e271c92012-10-22 10:36:18 -0700853 ret = brcmf_usb_ioctl_resp_wait(devinfo);
854 return (ret == 0);
Arend van Spriel71bb2442012-02-09 21:09:08 +0100855}
856
857static int
858brcmf_usb_dl_writeimage(struct brcmf_usbdev_info *devinfo, u8 *fw, int fwlen)
859{
860 unsigned int sendlen, sent, dllen;
861 char *bulkchunk = NULL, *dlpos;
862 struct rdl_state_le state;
863 u32 rdlstate, rdlbytes;
864 int err = 0;
Hante Meulemancb8b73d2012-11-05 16:22:31 -0800865
866 brcmf_dbg(USB, "Enter, fw %p, len %d\n", fw, fwlen);
Arend van Spriel71bb2442012-02-09 21:09:08 +0100867
868 bulkchunk = kmalloc(RDL_CHUNK, GFP_ATOMIC);
869 if (bulkchunk == NULL) {
870 err = -ENOMEM;
871 goto fail;
872 }
873
874 /* 1) Prepare USB boot loader for runtime image */
875 brcmf_usb_dl_cmd(devinfo, DL_START, &state,
876 sizeof(struct rdl_state_le));
877
878 rdlstate = le32_to_cpu(state.state);
879 rdlbytes = le32_to_cpu(state.bytes);
880
881 /* 2) Check we are in the Waiting state */
882 if (rdlstate != DL_WAITING) {
Arend van Spriel5e8149f2012-12-07 10:49:57 +0100883 brcmf_err("Failed to DL_START\n");
Arend van Spriel71bb2442012-02-09 21:09:08 +0100884 err = -EINVAL;
885 goto fail;
886 }
887 sent = 0;
888 dlpos = fw;
889 dllen = fwlen;
890
891 /* Get chip id and rev */
892 while (rdlbytes != dllen) {
893 /* Wait until the usb device reports it received all
894 * the bytes we sent */
895 if ((rdlbytes == sent) && (rdlbytes != dllen)) {
896 if ((dllen-sent) < RDL_CHUNK)
897 sendlen = dllen-sent;
898 else
899 sendlen = RDL_CHUNK;
900
901 /* simply avoid having to send a ZLP by ensuring we
902 * never have an even
903 * multiple of 64
904 */
905 if (!(sendlen % 64))
906 sendlen -= 4;
907
908 /* send data */
909 memcpy(bulkchunk, dlpos, sendlen);
910 if (brcmf_usb_dl_send_bulk(devinfo, bulkchunk,
911 sendlen)) {
Arend van Spriel5e8149f2012-12-07 10:49:57 +0100912 brcmf_err("send_bulk failed\n");
Arend van Spriel71bb2442012-02-09 21:09:08 +0100913 err = -EINVAL;
914 goto fail;
915 }
916
917 dlpos += sendlen;
918 sent += sendlen;
919 }
920 if (!brcmf_usb_dl_cmd(devinfo, DL_GETSTATE, &state,
921 sizeof(struct rdl_state_le))) {
Arend van Spriel5e8149f2012-12-07 10:49:57 +0100922 brcmf_err("DL_GETSTATE Failed xxxx\n");
Arend van Spriel71bb2442012-02-09 21:09:08 +0100923 err = -EINVAL;
924 goto fail;
925 }
926
927 rdlstate = le32_to_cpu(state.state);
928 rdlbytes = le32_to_cpu(state.bytes);
929
930 /* restart if an error is reported */
931 if (rdlstate == DL_BAD_HDR || rdlstate == DL_BAD_CRC) {
Arend van Spriel5e8149f2012-12-07 10:49:57 +0100932 brcmf_err("Bad Hdr or Bad CRC state %d\n",
Arend van Spriel71bb2442012-02-09 21:09:08 +0100933 rdlstate);
934 err = -EINVAL;
935 goto fail;
936 }
937 }
938
939fail:
940 kfree(bulkchunk);
Hante Meulemancb8b73d2012-11-05 16:22:31 -0800941 brcmf_dbg(USB, "Exit, err=%d\n", err);
Arend van Spriel71bb2442012-02-09 21:09:08 +0100942 return err;
943}
944
945static int brcmf_usb_dlstart(struct brcmf_usbdev_info *devinfo, u8 *fw, int len)
946{
947 int err;
948
Hante Meulemancb8b73d2012-11-05 16:22:31 -0800949 brcmf_dbg(USB, "Enter\n");
Arend van Spriel71bb2442012-02-09 21:09:08 +0100950
951 if (devinfo == NULL)
952 return -EINVAL;
953
Arend van Sprielac94f192012-03-02 22:55:46 +0100954 if (devinfo->bus_pub.devid == 0xDEAD)
Arend van Spriel71bb2442012-02-09 21:09:08 +0100955 return -EINVAL;
956
957 err = brcmf_usb_dl_writeimage(devinfo, fw, len);
958 if (err == 0)
Hante Meuleman7c38e692012-11-14 18:46:07 -0800959 devinfo->bus_pub.state = BRCMFMAC_USB_STATE_DL_DONE;
Arend van Spriel71bb2442012-02-09 21:09:08 +0100960 else
Hante Meuleman7c38e692012-11-14 18:46:07 -0800961 devinfo->bus_pub.state = BRCMFMAC_USB_STATE_DL_FAIL;
Hante Meulemancb8b73d2012-11-05 16:22:31 -0800962 brcmf_dbg(USB, "Exit, err=%d\n", err);
Arend van Spriel71bb2442012-02-09 21:09:08 +0100963
964 return err;
965}
966
967static int brcmf_usb_dlrun(struct brcmf_usbdev_info *devinfo)
968{
969 struct rdl_state_le state;
970
Hante Meulemancb8b73d2012-11-05 16:22:31 -0800971 brcmf_dbg(USB, "Enter\n");
Arend van Spriel71bb2442012-02-09 21:09:08 +0100972 if (!devinfo)
973 return -EINVAL;
974
Arend van Sprielac94f192012-03-02 22:55:46 +0100975 if (devinfo->bus_pub.devid == 0xDEAD)
Arend van Spriel71bb2442012-02-09 21:09:08 +0100976 return -EINVAL;
977
978 /* Check we are runnable */
979 brcmf_usb_dl_cmd(devinfo, DL_GETSTATE, &state,
980 sizeof(struct rdl_state_le));
981
982 /* Start the image */
983 if (state.state == cpu_to_le32(DL_RUNNABLE)) {
984 if (!brcmf_usb_dl_cmd(devinfo, DL_GO, &state,
985 sizeof(struct rdl_state_le)))
986 return -ENODEV;
987 if (brcmf_usb_resetcfg(devinfo))
988 return -ENODEV;
989 /* The Dongle may go for re-enumeration. */
990 } else {
Arend van Spriel5e8149f2012-12-07 10:49:57 +0100991 brcmf_err("Dongle not runnable\n");
Arend van Spriel71bb2442012-02-09 21:09:08 +0100992 return -EINVAL;
993 }
Hante Meulemancb8b73d2012-11-05 16:22:31 -0800994 brcmf_dbg(USB, "Exit\n");
Arend van Spriel71bb2442012-02-09 21:09:08 +0100995 return 0;
996}
997
998static bool brcmf_usb_chip_support(int chipid, int chiprev)
999{
1000 switch(chipid) {
Hante Meuleman70f08222012-08-30 19:43:01 +02001001 case 43143:
1002 return true;
Arend van Spriel71bb2442012-02-09 21:09:08 +01001003 case 43235:
1004 case 43236:
1005 case 43238:
1006 return (chiprev == 3);
Hante Meuleman1212d372012-08-30 19:43:00 +02001007 case 43242:
1008 return true;
Arend van Spriel71bb2442012-02-09 21:09:08 +01001009 default:
1010 break;
1011 }
1012 return false;
1013}
1014
1015static int
1016brcmf_usb_fw_download(struct brcmf_usbdev_info *devinfo)
1017{
Arend van Sprielac94f192012-03-02 22:55:46 +01001018 int devid, chiprev;
Arend van Spriel71bb2442012-02-09 21:09:08 +01001019 int err;
1020
Hante Meulemancb8b73d2012-11-05 16:22:31 -08001021 brcmf_dbg(USB, "Enter\n");
Arend van Spriel71bb2442012-02-09 21:09:08 +01001022 if (devinfo == NULL)
1023 return -ENODEV;
1024
Arend van Sprielac94f192012-03-02 22:55:46 +01001025 devid = devinfo->bus_pub.devid;
1026 chiprev = devinfo->bus_pub.chiprev;
Arend van Spriel71bb2442012-02-09 21:09:08 +01001027
Arend van Sprielac94f192012-03-02 22:55:46 +01001028 if (!brcmf_usb_chip_support(devid, chiprev)) {
Arend van Spriel5e8149f2012-12-07 10:49:57 +01001029 brcmf_err("unsupported chip %d rev %d\n",
Arend van Sprielac94f192012-03-02 22:55:46 +01001030 devid, chiprev);
Arend van Spriel71bb2442012-02-09 21:09:08 +01001031 return -EINVAL;
1032 }
1033
1034 if (!devinfo->image) {
Arend van Spriel5e8149f2012-12-07 10:49:57 +01001035 brcmf_err("No firmware!\n");
Arend van Spriel71bb2442012-02-09 21:09:08 +01001036 return -ENOENT;
1037 }
1038
1039 err = brcmf_usb_dlstart(devinfo,
1040 devinfo->image, devinfo->image_len);
1041 if (err == 0)
1042 err = brcmf_usb_dlrun(devinfo);
1043 return err;
1044}
1045
1046
Hante Meulemand74a0b52012-09-11 21:18:51 +02001047static void brcmf_usb_detach(struct brcmf_usbdev_info *devinfo)
Arend van Spriel71bb2442012-02-09 21:09:08 +01001048{
Hante Meulemancb8b73d2012-11-05 16:22:31 -08001049 brcmf_dbg(USB, "Enter, devinfo %p\n", devinfo);
Arend van Spriel71bb2442012-02-09 21:09:08 +01001050
Arend van Spriel71bb2442012-02-09 21:09:08 +01001051 /* free the URBS */
1052 brcmf_usb_free_q(&devinfo->rx_freeq, false);
1053 brcmf_usb_free_q(&devinfo->tx_freeq, false);
1054
1055 usb_free_urb(devinfo->intr_urb);
1056 usb_free_urb(devinfo->ctl_urb);
1057 usb_free_urb(devinfo->bulk_urb);
1058
1059 kfree(devinfo->tx_reqs);
1060 kfree(devinfo->rx_reqs);
Arend van Spriel71bb2442012-02-09 21:09:08 +01001061}
1062
1063#define TRX_MAGIC 0x30524448 /* "HDR0" */
1064#define TRX_VERSION 1 /* Version 1 */
1065#define TRX_MAX_LEN 0x3B0000 /* Max length */
1066#define TRX_NO_HEADER 1 /* Do not write TRX header */
1067#define TRX_MAX_OFFSET 3 /* Max number of individual files */
1068#define TRX_UNCOMP_IMAGE 0x20 /* Trx contains uncompressed image */
1069
1070struct trx_header_le {
1071 __le32 magic; /* "HDR0" */
1072 __le32 len; /* Length of file including header */
1073 __le32 crc32; /* CRC from flag_version to end of file */
1074 __le32 flag_version; /* 0:15 flags, 16:31 version */
1075 __le32 offsets[TRX_MAX_OFFSET]; /* Offsets of partitions from start of
1076 * header */
1077};
1078
1079static int check_file(const u8 *headers)
1080{
1081 struct trx_header_le *trx;
1082 int actual_len = -1;
1083
Hante Meulemancb8b73d2012-11-05 16:22:31 -08001084 brcmf_dbg(USB, "Enter\n");
Arend van Spriel71bb2442012-02-09 21:09:08 +01001085 /* Extract trx header */
1086 trx = (struct trx_header_le *) headers;
1087 if (trx->magic != cpu_to_le32(TRX_MAGIC))
1088 return -1;
1089
1090 headers += sizeof(struct trx_header_le);
1091
1092 if (le32_to_cpu(trx->flag_version) & TRX_UNCOMP_IMAGE) {
1093 actual_len = le32_to_cpu(trx->offsets[TRX_OFFSETS_DLFWLEN_IDX]);
1094 return actual_len + sizeof(struct trx_header_le);
1095 }
1096 return -1;
1097}
1098
1099static int brcmf_usb_get_fw(struct brcmf_usbdev_info *devinfo)
1100{
1101 s8 *fwname;
1102 const struct firmware *fw;
Hante Meuleman803599d2012-09-19 22:21:10 +02001103 struct brcmf_usb_image *fw_image;
Arend van Spriel71bb2442012-02-09 21:09:08 +01001104 int err;
1105
Hante Meulemancb8b73d2012-11-05 16:22:31 -08001106 brcmf_dbg(USB, "Enter\n");
Hante Meuleman1212d372012-08-30 19:43:00 +02001107 switch (devinfo->bus_pub.devid) {
Hante Meuleman70f08222012-08-30 19:43:01 +02001108 case 43143:
1109 fwname = BRCMF_USB_43143_FW_NAME;
1110 break;
Hante Meuleman1212d372012-08-30 19:43:00 +02001111 case 43235:
1112 case 43236:
1113 case 43238:
1114 fwname = BRCMF_USB_43236_FW_NAME;
1115 break;
1116 case 43242:
1117 fwname = BRCMF_USB_43242_FW_NAME;
1118 break;
1119 default:
1120 return -EINVAL;
1121 break;
1122 }
Hante Meulemancb8b73d2012-11-05 16:22:31 -08001123 brcmf_dbg(USB, "Loading FW %s\n", fwname);
Hante Meuleman803599d2012-09-19 22:21:10 +02001124 list_for_each_entry(fw_image, &fw_image_list, list) {
1125 if (fw_image->fwname == fwname) {
1126 devinfo->image = fw_image->image;
1127 devinfo->image_len = fw_image->image_len;
1128 return 0;
1129 }
1130 }
1131 /* fw image not yet loaded. Load it now and add to list */
Arend van Spriel71bb2442012-02-09 21:09:08 +01001132 err = request_firmware(&fw, fwname, devinfo->dev);
1133 if (!fw) {
Arend van Spriel5e8149f2012-12-07 10:49:57 +01001134 brcmf_err("fail to request firmware %s\n", fwname);
Arend van Spriel71bb2442012-02-09 21:09:08 +01001135 return err;
1136 }
1137 if (check_file(fw->data) < 0) {
Arend van Spriel5e8149f2012-12-07 10:49:57 +01001138 brcmf_err("invalid firmware %s\n", fwname);
Arend van Spriel71bb2442012-02-09 21:09:08 +01001139 return -EINVAL;
1140 }
1141
Hante Meuleman803599d2012-09-19 22:21:10 +02001142 fw_image = kzalloc(sizeof(*fw_image), GFP_ATOMIC);
1143 if (!fw_image)
1144 return -ENOMEM;
1145 INIT_LIST_HEAD(&fw_image->list);
1146 list_add_tail(&fw_image->list, &fw_image_list);
1147 fw_image->fwname = fwname;
1148 fw_image->image = vmalloc(fw->size);
1149 if (!fw_image->image)
Arend van Spriel71bb2442012-02-09 21:09:08 +01001150 return -ENOMEM;
1151
Hante Meuleman803599d2012-09-19 22:21:10 +02001152 memcpy(fw_image->image, fw->data, fw->size);
1153 fw_image->image_len = fw->size;
Arend van Spriel71bb2442012-02-09 21:09:08 +01001154
1155 release_firmware(fw);
Hante Meuleman803599d2012-09-19 22:21:10 +02001156
1157 devinfo->image = fw_image->image;
1158 devinfo->image_len = fw_image->image_len;
1159
Arend van Spriel71bb2442012-02-09 21:09:08 +01001160 return 0;
1161}
1162
1163
1164static
Hante Meulemand74a0b52012-09-11 21:18:51 +02001165struct brcmf_usbdev *brcmf_usb_attach(struct brcmf_usbdev_info *devinfo,
1166 int nrxq, int ntxq)
Arend van Spriel71bb2442012-02-09 21:09:08 +01001167{
Hante Meulemancb8b73d2012-11-05 16:22:31 -08001168 brcmf_dbg(USB, "Enter\n");
1169
Arend van Spriel71bb2442012-02-09 21:09:08 +01001170 devinfo->bus_pub.nrxq = nrxq;
1171 devinfo->rx_low_watermark = nrxq / 2;
1172 devinfo->bus_pub.devinfo = devinfo;
1173 devinfo->bus_pub.ntxq = ntxq;
Hante Meuleman7c38e692012-11-14 18:46:07 -08001174 devinfo->bus_pub.state = BRCMFMAC_USB_STATE_DOWN;
Arend van Spriel71bb2442012-02-09 21:09:08 +01001175
1176 /* flow control when too many tx urbs posted */
1177 devinfo->tx_low_watermark = ntxq / 4;
1178 devinfo->tx_high_watermark = devinfo->tx_low_watermark * 3;
Arend van Spriel71bb2442012-02-09 21:09:08 +01001179 devinfo->bus_pub.bus_mtu = BRCMF_USB_MAX_PKT_SIZE;
1180
1181 /* Initialize other structure content */
1182 init_waitqueue_head(&devinfo->ioctl_resp_wait);
1183
1184 /* Initialize the spinlocks */
1185 spin_lock_init(&devinfo->qlock);
1186
1187 INIT_LIST_HEAD(&devinfo->rx_freeq);
1188 INIT_LIST_HEAD(&devinfo->rx_postq);
1189
1190 INIT_LIST_HEAD(&devinfo->tx_freeq);
1191 INIT_LIST_HEAD(&devinfo->tx_postq);
1192
Hante Meulemanc6ab4292012-09-11 21:18:48 +02001193 devinfo->tx_flowblock = false;
1194
Arend van Spriel71bb2442012-02-09 21:09:08 +01001195 devinfo->rx_reqs = brcmf_usbdev_qinit(&devinfo->rx_freeq, nrxq);
1196 if (!devinfo->rx_reqs)
1197 goto error;
1198
1199 devinfo->tx_reqs = brcmf_usbdev_qinit(&devinfo->tx_freeq, ntxq);
1200 if (!devinfo->tx_reqs)
1201 goto error;
Hante Meulemanc6ab4292012-09-11 21:18:48 +02001202 devinfo->tx_freecount = ntxq;
Arend van Spriel71bb2442012-02-09 21:09:08 +01001203
1204 devinfo->intr_urb = usb_alloc_urb(0, GFP_ATOMIC);
1205 if (!devinfo->intr_urb) {
Arend van Spriel5e8149f2012-12-07 10:49:57 +01001206 brcmf_err("usb_alloc_urb (intr) failed\n");
Arend van Spriel71bb2442012-02-09 21:09:08 +01001207 goto error;
1208 }
1209 devinfo->ctl_urb = usb_alloc_urb(0, GFP_ATOMIC);
1210 if (!devinfo->ctl_urb) {
Arend van Spriel5e8149f2012-12-07 10:49:57 +01001211 brcmf_err("usb_alloc_urb (ctl) failed\n");
Arend van Spriel71bb2442012-02-09 21:09:08 +01001212 goto error;
1213 }
Arend van Spriel71bb2442012-02-09 21:09:08 +01001214 devinfo->bulk_urb = usb_alloc_urb(0, GFP_ATOMIC);
1215 if (!devinfo->bulk_urb) {
Arend van Spriel5e8149f2012-12-07 10:49:57 +01001216 brcmf_err("usb_alloc_urb (bulk) failed\n");
Arend van Spriel71bb2442012-02-09 21:09:08 +01001217 goto error;
1218 }
1219
Arend van Spriel71bb2442012-02-09 21:09:08 +01001220 if (!brcmf_usb_dlneeded(devinfo))
1221 return &devinfo->bus_pub;
1222
Hante Meulemancb8b73d2012-11-05 16:22:31 -08001223 brcmf_dbg(USB, "Start fw downloading\n");
Arend van Spriel71bb2442012-02-09 21:09:08 +01001224 if (brcmf_usb_get_fw(devinfo))
1225 goto error;
1226
1227 if (brcmf_usb_fw_download(devinfo))
1228 goto error;
1229
1230 return &devinfo->bus_pub;
1231
1232error:
Arend van Spriel5e8149f2012-12-07 10:49:57 +01001233 brcmf_err("failed!\n");
Hante Meulemand74a0b52012-09-11 21:18:51 +02001234 brcmf_usb_detach(devinfo);
Arend van Spriel71bb2442012-02-09 21:09:08 +01001235 return NULL;
1236}
1237
Arend van Sprield9cb2592012-12-05 15:25:54 +01001238static struct brcmf_bus_ops brcmf_usb_bus_ops = {
1239 .txdata = brcmf_usb_tx,
1240 .init = brcmf_usb_up,
1241 .stop = brcmf_usb_down,
1242 .txctl = brcmf_usb_tx_ctlpkt,
1243 .rxctl = brcmf_usb_rx_ctlpkt,
1244};
1245
Hante Meulemanb87e2c42012-11-14 18:46:23 -08001246static int brcmf_usb_probe_cb(struct brcmf_usbdev_info *devinfo)
Arend van Spriel71bb2442012-02-09 21:09:08 +01001247{
1248 struct brcmf_bus *bus = NULL;
1249 struct brcmf_usbdev *bus_pub = NULL;
1250 int ret;
Hante Meulemand74a0b52012-09-11 21:18:51 +02001251 struct device *dev = devinfo->dev;
Arend van Spriel71bb2442012-02-09 21:09:08 +01001252
Hante Meulemancb8b73d2012-11-05 16:22:31 -08001253 brcmf_dbg(USB, "Enter\n");
Hante Meulemand74a0b52012-09-11 21:18:51 +02001254 bus_pub = brcmf_usb_attach(devinfo, BRCMF_USB_NRXQ, BRCMF_USB_NTXQ);
Hante Meuleman9cd23a72012-09-13 21:12:04 +02001255 if (!bus_pub)
1256 return -ENODEV;
Arend van Spriel71bb2442012-02-09 21:09:08 +01001257
1258 bus = kzalloc(sizeof(struct brcmf_bus), GFP_ATOMIC);
1259 if (!bus) {
1260 ret = -ENOMEM;
1261 goto fail;
1262 }
1263
Arend van Sprield9cb2592012-12-05 15:25:54 +01001264 bus->dev = dev;
Arend van Spriel71bb2442012-02-09 21:09:08 +01001265 bus_pub->bus = bus;
Arend van Spriel71bb2442012-02-09 21:09:08 +01001266 bus->bus_priv.usb = bus_pub;
1267 dev_set_drvdata(dev, bus);
Arend van Sprield9cb2592012-12-05 15:25:54 +01001268 bus->ops = &brcmf_usb_bus_ops;
Arend van Spriel71bb2442012-02-09 21:09:08 +01001269
1270 /* Attach to the common driver interface */
Hante Meulemanb87e2c42012-11-14 18:46:23 -08001271 ret = brcmf_attach(0, dev);
Arend van Spriel71bb2442012-02-09 21:09:08 +01001272 if (ret) {
Arend van Spriel5e8149f2012-12-07 10:49:57 +01001273 brcmf_err("brcmf_attach failed\n");
Arend van Spriel71bb2442012-02-09 21:09:08 +01001274 goto fail;
1275 }
1276
1277 ret = brcmf_bus_start(dev);
Hante Meulemane270b302012-10-10 11:13:06 -07001278 if (ret) {
Arend van Spriel5e8149f2012-12-07 10:49:57 +01001279 brcmf_err("dongle is not responding\n");
Arend van Spriel71bb2442012-02-09 21:09:08 +01001280 brcmf_detach(dev);
1281 goto fail;
1282 }
1283
Arend van Spriel71bb2442012-02-09 21:09:08 +01001284 return 0;
1285fail:
1286 /* Release resources in reverse order */
Arend van Spriel71bb2442012-02-09 21:09:08 +01001287 kfree(bus);
Hante Meulemand74a0b52012-09-11 21:18:51 +02001288 brcmf_usb_detach(devinfo);
Arend van Spriel71bb2442012-02-09 21:09:08 +01001289 return ret;
1290}
1291
1292static void
Hante Meulemand74a0b52012-09-11 21:18:51 +02001293brcmf_usb_disconnect_cb(struct brcmf_usbdev_info *devinfo)
Arend van Spriel71bb2442012-02-09 21:09:08 +01001294{
Hante Meulemand74a0b52012-09-11 21:18:51 +02001295 if (!devinfo)
Arend van Spriel71bb2442012-02-09 21:09:08 +01001296 return;
Hante Meulemancb8b73d2012-11-05 16:22:31 -08001297 brcmf_dbg(USB, "Enter, bus_pub %p\n", devinfo);
Arend van Spriel71bb2442012-02-09 21:09:08 +01001298
Hante Meulemand74a0b52012-09-11 21:18:51 +02001299 brcmf_detach(devinfo->dev);
1300 kfree(devinfo->bus_pub.bus);
1301 brcmf_usb_detach(devinfo);
Arend van Spriel71bb2442012-02-09 21:09:08 +01001302}
1303
1304static int
1305brcmf_usb_probe(struct usb_interface *intf, const struct usb_device_id *id)
1306{
1307 int ep;
1308 struct usb_endpoint_descriptor *endpoint;
1309 int ret = 0;
1310 struct usb_device *usb = interface_to_usbdev(intf);
1311 int num_of_eps;
1312 u8 endpoint_num;
Hante Meulemand74a0b52012-09-11 21:18:51 +02001313 struct brcmf_usbdev_info *devinfo;
Arend van Spriel71bb2442012-02-09 21:09:08 +01001314
Hante Meulemancb8b73d2012-11-05 16:22:31 -08001315 brcmf_dbg(USB, "Enter\n");
Arend van Spriel71bb2442012-02-09 21:09:08 +01001316
Hante Meulemand74a0b52012-09-11 21:18:51 +02001317 devinfo = kzalloc(sizeof(*devinfo), GFP_ATOMIC);
1318 if (devinfo == NULL)
1319 return -ENOMEM;
Arend van Spriel71bb2442012-02-09 21:09:08 +01001320
Hante Meulemand74a0b52012-09-11 21:18:51 +02001321 devinfo->usbdev = usb;
1322 devinfo->dev = &usb->dev;
Arend van Spriel71bb2442012-02-09 21:09:08 +01001323
Hante Meulemand74a0b52012-09-11 21:18:51 +02001324 usb_set_intfdata(intf, devinfo);
Arend van Spriel71bb2442012-02-09 21:09:08 +01001325
1326 /* Check that the device supports only one configuration */
1327 if (usb->descriptor.bNumConfigurations != 1) {
1328 ret = -1;
1329 goto fail;
1330 }
1331
1332 if (usb->descriptor.bDeviceClass != USB_CLASS_VENDOR_SPEC) {
1333 ret = -1;
1334 goto fail;
1335 }
1336
1337 /*
1338 * Only the BDC interface configuration is supported:
1339 * Device class: USB_CLASS_VENDOR_SPEC
1340 * if0 class: USB_CLASS_VENDOR_SPEC
1341 * if0/ep0: control
1342 * if0/ep1: bulk in
1343 * if0/ep2: bulk out (ok if swapped with bulk in)
1344 */
1345 if (CONFIGDESC(usb)->bNumInterfaces != 1) {
1346 ret = -1;
1347 goto fail;
1348 }
1349
1350 /* Check interface */
1351 if (IFDESC(usb, CONTROL_IF).bInterfaceClass != USB_CLASS_VENDOR_SPEC ||
1352 IFDESC(usb, CONTROL_IF).bInterfaceSubClass != 2 ||
1353 IFDESC(usb, CONTROL_IF).bInterfaceProtocol != 0xff) {
Arend van Spriel5e8149f2012-12-07 10:49:57 +01001354 brcmf_err("invalid control interface: class %d, subclass %d, proto %d\n",
Arend van Spriel71bb2442012-02-09 21:09:08 +01001355 IFDESC(usb, CONTROL_IF).bInterfaceClass,
1356 IFDESC(usb, CONTROL_IF).bInterfaceSubClass,
1357 IFDESC(usb, CONTROL_IF).bInterfaceProtocol);
1358 ret = -1;
1359 goto fail;
1360 }
1361
1362 /* Check control endpoint */
1363 endpoint = &IFEPDESC(usb, CONTROL_IF, 0);
1364 if ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
1365 != USB_ENDPOINT_XFER_INT) {
Arend van Spriel5e8149f2012-12-07 10:49:57 +01001366 brcmf_err("invalid control endpoint %d\n",
Arend van Spriel71bb2442012-02-09 21:09:08 +01001367 endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK);
1368 ret = -1;
1369 goto fail;
1370 }
1371
1372 endpoint_num = endpoint->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK;
Hante Meulemand74a0b52012-09-11 21:18:51 +02001373 devinfo->intr_pipe = usb_rcvintpipe(usb, endpoint_num);
Arend van Spriel71bb2442012-02-09 21:09:08 +01001374
Hante Meulemand74a0b52012-09-11 21:18:51 +02001375 devinfo->rx_pipe = 0;
1376 devinfo->rx_pipe2 = 0;
1377 devinfo->tx_pipe = 0;
Arend van Spriel71bb2442012-02-09 21:09:08 +01001378 num_of_eps = IFDESC(usb, BULK_IF).bNumEndpoints - 1;
1379
1380 /* Check data endpoints and get pipes */
1381 for (ep = 1; ep <= num_of_eps; ep++) {
1382 endpoint = &IFEPDESC(usb, BULK_IF, ep);
1383 if ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) !=
1384 USB_ENDPOINT_XFER_BULK) {
Arend van Spriel5e8149f2012-12-07 10:49:57 +01001385 brcmf_err("invalid data endpoint %d\n", ep);
Arend van Spriel71bb2442012-02-09 21:09:08 +01001386 ret = -1;
1387 goto fail;
1388 }
1389
1390 endpoint_num = endpoint->bEndpointAddress &
1391 USB_ENDPOINT_NUMBER_MASK;
1392 if ((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
1393 == USB_DIR_IN) {
Hante Meulemand74a0b52012-09-11 21:18:51 +02001394 if (!devinfo->rx_pipe) {
1395 devinfo->rx_pipe =
Arend van Spriel71bb2442012-02-09 21:09:08 +01001396 usb_rcvbulkpipe(usb, endpoint_num);
1397 } else {
Hante Meulemand74a0b52012-09-11 21:18:51 +02001398 devinfo->rx_pipe2 =
Arend van Spriel71bb2442012-02-09 21:09:08 +01001399 usb_rcvbulkpipe(usb, endpoint_num);
1400 }
1401 } else {
Hante Meulemand74a0b52012-09-11 21:18:51 +02001402 devinfo->tx_pipe = usb_sndbulkpipe(usb, endpoint_num);
Arend van Spriel71bb2442012-02-09 21:09:08 +01001403 }
1404 }
1405
1406 /* Allocate interrupt URB and data buffer */
1407 /* RNDIS says 8-byte intr, our old drivers used 4-byte */
1408 if (IFEPDESC(usb, CONTROL_IF, 0).wMaxPacketSize == cpu_to_le16(16))
Hante Meulemand74a0b52012-09-11 21:18:51 +02001409 devinfo->intr_size = 8;
Arend van Spriel71bb2442012-02-09 21:09:08 +01001410 else
Hante Meulemand74a0b52012-09-11 21:18:51 +02001411 devinfo->intr_size = 4;
Arend van Spriel71bb2442012-02-09 21:09:08 +01001412
Hante Meulemand74a0b52012-09-11 21:18:51 +02001413 devinfo->interval = IFEPDESC(usb, CONTROL_IF, 0).bInterval;
Arend van Spriel71bb2442012-02-09 21:09:08 +01001414
Arend van Spriel71bb2442012-02-09 21:09:08 +01001415 if (usb->speed == USB_SPEED_HIGH)
Hante Meulemancb8b73d2012-11-05 16:22:31 -08001416 brcmf_dbg(USB, "Broadcom high speed USB wireless device detected\n");
Arend van Spriel71bb2442012-02-09 21:09:08 +01001417 else
Hante Meulemancb8b73d2012-11-05 16:22:31 -08001418 brcmf_dbg(USB, "Broadcom full speed USB wireless device detected\n");
Arend van Spriel71bb2442012-02-09 21:09:08 +01001419
Hante Meulemanb87e2c42012-11-14 18:46:23 -08001420 ret = brcmf_usb_probe_cb(devinfo);
Arend van Spriel71bb2442012-02-09 21:09:08 +01001421 if (ret)
1422 goto fail;
1423
1424 /* Success */
1425 return 0;
1426
1427fail:
Arend van Spriel5e8149f2012-12-07 10:49:57 +01001428 brcmf_err("failed with errno %d\n", ret);
Hante Meulemand74a0b52012-09-11 21:18:51 +02001429 kfree(devinfo);
Arend van Spriel71bb2442012-02-09 21:09:08 +01001430 usb_set_intfdata(intf, NULL);
1431 return ret;
1432
1433}
1434
1435static void
1436brcmf_usb_disconnect(struct usb_interface *intf)
1437{
Hante Meulemand74a0b52012-09-11 21:18:51 +02001438 struct brcmf_usbdev_info *devinfo;
Arend van Spriel71bb2442012-02-09 21:09:08 +01001439
Hante Meulemancb8b73d2012-11-05 16:22:31 -08001440 brcmf_dbg(USB, "Enter\n");
Hante Meulemand74a0b52012-09-11 21:18:51 +02001441 devinfo = (struct brcmf_usbdev_info *)usb_get_intfdata(intf);
1442 brcmf_usb_disconnect_cb(devinfo);
1443 kfree(devinfo);
Hante Meulemancb8b73d2012-11-05 16:22:31 -08001444 brcmf_dbg(USB, "Exit\n");
Arend van Spriel71bb2442012-02-09 21:09:08 +01001445}
1446
1447/*
Hante Meuleman7c38e692012-11-14 18:46:07 -08001448 * only need to signal the bus being down and update the state.
Arend van Spriel71bb2442012-02-09 21:09:08 +01001449 */
1450static int brcmf_usb_suspend(struct usb_interface *intf, pm_message_t state)
1451{
1452 struct usb_device *usb = interface_to_usbdev(intf);
1453 struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(&usb->dev);
1454
Hante Meulemancb8b73d2012-11-05 16:22:31 -08001455 brcmf_dbg(USB, "Enter\n");
Hante Meuleman7c38e692012-11-14 18:46:07 -08001456 devinfo->bus_pub.state = BRCMFMAC_USB_STATE_SLEEP;
1457 brcmf_detach(&usb->dev);
Arend van Spriel71bb2442012-02-09 21:09:08 +01001458 return 0;
1459}
1460
1461/*
Hante Meuleman7c38e692012-11-14 18:46:07 -08001462 * (re-) start the bus.
Arend van Spriel71bb2442012-02-09 21:09:08 +01001463 */
1464static int brcmf_usb_resume(struct usb_interface *intf)
1465{
1466 struct usb_device *usb = interface_to_usbdev(intf);
1467 struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(&usb->dev);
1468
Hante Meulemancb8b73d2012-11-05 16:22:31 -08001469 brcmf_dbg(USB, "Enter\n");
Hante Meuleman7c38e692012-11-14 18:46:07 -08001470 if (!brcmf_attach(0, devinfo->dev))
1471 return brcmf_bus_start(&usb->dev);
1472
Arend van Spriel71bb2442012-02-09 21:09:08 +01001473 return 0;
1474}
1475
Hante Meuleman7c38e692012-11-14 18:46:07 -08001476static int brcmf_usb_reset_resume(struct usb_interface *intf)
1477{
1478 struct usb_device *usb = interface_to_usbdev(intf);
1479 struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(&usb->dev);
1480
1481 brcmf_dbg(USB, "Enter\n");
1482
1483 if (!brcmf_usb_fw_download(devinfo))
1484 return brcmf_usb_resume(intf);
1485
1486 return -EIO;
1487}
1488
Arend van Spriel71bb2442012-02-09 21:09:08 +01001489#define BRCMF_USB_VENDOR_ID_BROADCOM 0x0a5c
Hante Meuleman70f08222012-08-30 19:43:01 +02001490#define BRCMF_USB_DEVICE_ID_43143 0xbd1e
Arend van Spriel71bb2442012-02-09 21:09:08 +01001491#define BRCMF_USB_DEVICE_ID_43236 0xbd17
Hante Meuleman1212d372012-08-30 19:43:00 +02001492#define BRCMF_USB_DEVICE_ID_43242 0xbd1f
Arend van Spriel71bb2442012-02-09 21:09:08 +01001493#define BRCMF_USB_DEVICE_ID_BCMFW 0x0bdc
1494
1495static struct usb_device_id brcmf_usb_devid_table[] = {
Hante Meuleman70f08222012-08-30 19:43:01 +02001496 { USB_DEVICE(BRCMF_USB_VENDOR_ID_BROADCOM, BRCMF_USB_DEVICE_ID_43143) },
Arend van Spriel71bb2442012-02-09 21:09:08 +01001497 { USB_DEVICE(BRCMF_USB_VENDOR_ID_BROADCOM, BRCMF_USB_DEVICE_ID_43236) },
Hante Meuleman1212d372012-08-30 19:43:00 +02001498 { USB_DEVICE(BRCMF_USB_VENDOR_ID_BROADCOM, BRCMF_USB_DEVICE_ID_43242) },
Arend van Spriel71bb2442012-02-09 21:09:08 +01001499 /* special entry for device with firmware loaded and running */
1500 { USB_DEVICE(BRCMF_USB_VENDOR_ID_BROADCOM, BRCMF_USB_DEVICE_ID_BCMFW) },
1501 { }
1502};
1503MODULE_DEVICE_TABLE(usb, brcmf_usb_devid_table);
Hante Meuleman70f08222012-08-30 19:43:01 +02001504MODULE_FIRMWARE(BRCMF_USB_43143_FW_NAME);
Rafał Miłeckifda82412012-02-24 07:22:51 +01001505MODULE_FIRMWARE(BRCMF_USB_43236_FW_NAME);
Hante Meuleman1212d372012-08-30 19:43:00 +02001506MODULE_FIRMWARE(BRCMF_USB_43242_FW_NAME);
Arend van Spriel71bb2442012-02-09 21:09:08 +01001507
Arend van Spriel71bb2442012-02-09 21:09:08 +01001508static struct usb_driver brcmf_usbdrvr = {
1509 .name = KBUILD_MODNAME,
1510 .probe = brcmf_usb_probe,
1511 .disconnect = brcmf_usb_disconnect,
1512 .id_table = brcmf_usb_devid_table,
1513 .suspend = brcmf_usb_suspend,
1514 .resume = brcmf_usb_resume,
Hante Meuleman7c38e692012-11-14 18:46:07 -08001515 .reset_resume = brcmf_usb_reset_resume,
Sarah Sharpc51fa662012-05-21 05:34:24 -07001516 .supports_autosuspend = 1,
Sarah Sharpe1f12eb2012-04-23 10:08:51 -07001517 .disable_hub_initiated_lpm = 1,
Arend van Spriel71bb2442012-02-09 21:09:08 +01001518};
1519
Hante Meuleman803599d2012-09-19 22:21:10 +02001520static void brcmf_release_fw(struct list_head *q)
1521{
1522 struct brcmf_usb_image *fw_image, *next;
1523
1524 list_for_each_entry_safe(fw_image, next, q, list) {
1525 vfree(fw_image->image);
1526 list_del_init(&fw_image->list);
1527 }
1528}
1529
Arend van Spriel81d5f1b2013-01-02 15:22:40 +01001530static int brcmf_usb_reset_device(struct device *dev, void *notused)
1531{
1532 /* device past is the usb interface so we
1533 * need to use parent here.
1534 */
1535 brcmf_dev_reset(dev->parent);
1536 return 0;
1537}
Hante Meuleman803599d2012-09-19 22:21:10 +02001538
Arend van Spriel71bb2442012-02-09 21:09:08 +01001539void brcmf_usb_exit(void)
1540{
Arend van Spriel81d5f1b2013-01-02 15:22:40 +01001541 struct device_driver *drv = &brcmf_usbdrvr.drvwrap.driver;
1542 int ret;
1543
Hante Meulemancb8b73d2012-11-05 16:22:31 -08001544 brcmf_dbg(USB, "Enter\n");
Arend van Spriel81d5f1b2013-01-02 15:22:40 +01001545 ret = driver_for_each_device(drv, NULL, NULL,
1546 brcmf_usb_reset_device);
Arend van Spriel71bb2442012-02-09 21:09:08 +01001547 usb_deregister(&brcmf_usbdrvr);
Hante Meuleman803599d2012-09-19 22:21:10 +02001548 brcmf_release_fw(&fw_image_list);
Arend van Spriel71bb2442012-02-09 21:09:08 +01001549}
1550
Arend van Spriel549040a2012-03-02 22:55:48 +01001551void brcmf_usb_init(void)
Arend van Spriel71bb2442012-02-09 21:09:08 +01001552{
Hante Meulemancb8b73d2012-11-05 16:22:31 -08001553 brcmf_dbg(USB, "Enter\n");
Hante Meuleman803599d2012-09-19 22:21:10 +02001554 INIT_LIST_HEAD(&fw_image_list);
Arend van Spriel549040a2012-03-02 22:55:48 +01001555 usb_register(&brcmf_usbdrvr);
Arend van Spriel71bb2442012-02-09 21:09:08 +01001556}