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GUI: Fix Tomato RAF theme for all builds. Compilation typo.
[tomato.git] / release / src-rt-6.x.4708 / linux / linux-2.6.36 / drivers / net / wireless / libertas_tf / if_usb.c
blob41a4f214ade1271e66b526cc4c936daf2059736a
1 /*
2 * Copyright (C) 2008, cozybit Inc.
3 * Copyright (C) 2003-2006, Marvell International Ltd.
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or (at
8 * your option) any later version.
9 */
10 #define DRV_NAME "lbtf_usb"
11
12 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
13
14 #include "libertas_tf.h"
15 #include "if_usb.h"
16
17 #include <linux/delay.h>
18 #include <linux/moduleparam.h>
19 #include <linux/firmware.h>
20 #include <linux/netdevice.h>
21 #include <linux/slab.h>
22 #include <linux/usb.h>
23
24 #define INSANEDEBUG 0
25 #define lbtf_deb_usb2(...) do { if (INSANEDEBUG) lbtf_deb_usbd(__VA_ARGS__); } while (0)
26
27 #define MESSAGE_HEADER_LEN 4
28
29 static char *lbtf_fw_name = "lbtf_usb.bin";
30 module_param_named(fw_name, lbtf_fw_name, charp, 0644);
31
32 MODULE_FIRMWARE("lbtf_usb.bin");
33
34 static struct usb_device_id if_usb_table[] = {
35 /* Enter the device signature inside */
36 { USB_DEVICE(0x1286, 0x2001) },
37 { USB_DEVICE(0x05a3, 0x8388) },
38 {} /* Terminating entry */
39 };
40
41 MODULE_DEVICE_TABLE(usb, if_usb_table);
42
43 static void if_usb_receive(struct urb *urb);
44 static void if_usb_receive_fwload(struct urb *urb);
45 static int if_usb_prog_firmware(struct if_usb_card *cardp);
46 static int if_usb_host_to_card(struct lbtf_private *priv, uint8_t type,
47 uint8_t *payload, uint16_t nb);
48 static int usb_tx_block(struct if_usb_card *cardp, uint8_t *payload,
49 uint16_t nb, u8 data);
50 static void if_usb_free(struct if_usb_card *cardp);
51 static int if_usb_submit_rx_urb(struct if_usb_card *cardp);
52 static int if_usb_reset_device(struct if_usb_card *cardp);
53
54 /**
55 * if_usb_wrike_bulk_callback - call back to handle URB status
56 *
57 * @param urb pointer to urb structure
58 */
59 static void if_usb_write_bulk_callback(struct urb *urb)
60 {
61 if (urb->status != 0) {
62 /* print the failure status number for debug */
63 pr_info("URB in failure status: %d\n", urb->status);
64 } else {
65 lbtf_deb_usb2(&urb->dev->dev, "URB status is successful\n");
66 lbtf_deb_usb2(&urb->dev->dev, "Actual length transmitted %d\n",
67 urb->actual_length);
68 }
69 }
70
71 /**
72 * if_usb_free - free tx/rx urb, skb and rx buffer
73 *
74 * @param cardp pointer if_usb_card
75 */
76 static void if_usb_free(struct if_usb_card *cardp)
77 {
78 lbtf_deb_enter(LBTF_DEB_USB);
79
80 /* Unlink tx & rx urb */
81 usb_kill_urb(cardp->tx_urb);
82 usb_kill_urb(cardp->rx_urb);
83 usb_kill_urb(cardp->cmd_urb);
84
85 usb_free_urb(cardp->tx_urb);
86 cardp->tx_urb = NULL;
87
88 usb_free_urb(cardp->rx_urb);
89 cardp->rx_urb = NULL;
90
91 usb_free_urb(cardp->cmd_urb);
92 cardp->cmd_urb = NULL;
93
94 kfree(cardp->ep_out_buf);
95 cardp->ep_out_buf = NULL;
96
97 lbtf_deb_leave(LBTF_DEB_USB);
98 }
99
100 static void if_usb_setup_firmware(struct lbtf_private *priv)
101 {
102 struct if_usb_card *cardp = priv->card;
103 struct cmd_ds_set_boot2_ver b2_cmd;
104
105 lbtf_deb_enter(LBTF_DEB_USB);
106
107 if_usb_submit_rx_urb(cardp);
108 b2_cmd.hdr.size = cpu_to_le16(sizeof(b2_cmd));
109 b2_cmd.action = 0;
110 b2_cmd.version = cardp->boot2_version;
111
112 if (lbtf_cmd_with_response(priv, CMD_SET_BOOT2_VER, &b2_cmd))
113 lbtf_deb_usb("Setting boot2 version failed\n");
114
115 lbtf_deb_leave(LBTF_DEB_USB);
116 }
117
118 static void if_usb_fw_timeo(unsigned long priv)
119 {
120 struct if_usb_card *cardp = (void *)priv;
121
122 lbtf_deb_enter(LBTF_DEB_USB);
123 if (!cardp->fwdnldover) {
124 /* Download timed out */
125 cardp->priv->surpriseremoved = 1;
126 pr_err("Download timed out\n");
127 } else {
128 lbtf_deb_usb("Download complete, no event. Assuming success\n");
129 }
130 wake_up(&cardp->fw_wq);
131 lbtf_deb_leave(LBTF_DEB_USB);
132 }
133
134 /**
135 * if_usb_probe - sets the configuration values
136 *
137 * @ifnum interface number
138 * @id pointer to usb_device_id
139 *
140 * Returns: 0 on success, error code on failure
141 */
142 static int if_usb_probe(struct usb_interface *intf,
143 const struct usb_device_id *id)
144 {
145 struct usb_device *udev;
146 struct usb_host_interface *iface_desc;
147 struct usb_endpoint_descriptor *endpoint;
148 struct lbtf_private *priv;
149 struct if_usb_card *cardp;
150 int i;
151
152 lbtf_deb_enter(LBTF_DEB_USB);
153 udev = interface_to_usbdev(intf);
154
155 cardp = kzalloc(sizeof(struct if_usb_card), GFP_KERNEL);
156 if (!cardp) {
157 pr_err("Out of memory allocating private data.\n");
158 goto error;
159 }
160
161 setup_timer(&cardp->fw_timeout, if_usb_fw_timeo, (unsigned long)cardp);
162 init_waitqueue_head(&cardp->fw_wq);
163
164 cardp->udev = udev;
165 iface_desc = intf->cur_altsetting;
166
167 lbtf_deb_usbd(&udev->dev, "bcdUSB = 0x%X bDeviceClass = 0x%X"
168 " bDeviceSubClass = 0x%X, bDeviceProtocol = 0x%X\n",
169 le16_to_cpu(udev->descriptor.bcdUSB),
170 udev->descriptor.bDeviceClass,
171 udev->descriptor.bDeviceSubClass,
172 udev->descriptor.bDeviceProtocol);
173
174 for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) {
175 endpoint = &iface_desc->endpoint[i].desc;
176 if (usb_endpoint_is_bulk_in(endpoint)) {
177 cardp->ep_in_size =
178 le16_to_cpu(endpoint->wMaxPacketSize);
179 cardp->ep_in = usb_endpoint_num(endpoint);
180
181 lbtf_deb_usbd(&udev->dev, "in_endpoint = %d\n", cardp->ep_in);
182 lbtf_deb_usbd(&udev->dev, "Bulk in size is %d\n", cardp->ep_in_size);
183 } else if (usb_endpoint_is_bulk_out(endpoint)) {
184 cardp->ep_out_size =
185 le16_to_cpu(endpoint->wMaxPacketSize);
186 cardp->ep_out = usb_endpoint_num(endpoint);
187
188 lbtf_deb_usbd(&udev->dev, "out_endpoint = %d\n", cardp->ep_out);
189 lbtf_deb_usbd(&udev->dev, "Bulk out size is %d\n",
190 cardp->ep_out_size);
191 }
192 }
193 if (!cardp->ep_out_size || !cardp->ep_in_size) {
194 lbtf_deb_usbd(&udev->dev, "Endpoints not found\n");
195 /* Endpoints not found */
196 goto dealloc;
197 }
198
199 cardp->rx_urb = usb_alloc_urb(0, GFP_KERNEL);
200 if (!cardp->rx_urb) {
201 lbtf_deb_usbd(&udev->dev, "Rx URB allocation failed\n");
202 goto dealloc;
203 }
204
205 cardp->tx_urb = usb_alloc_urb(0, GFP_KERNEL);
206 if (!cardp->tx_urb) {
207 lbtf_deb_usbd(&udev->dev, "Tx URB allocation failed\n");
208 goto dealloc;
209 }
210
211 cardp->cmd_urb = usb_alloc_urb(0, GFP_KERNEL);
212 if (!cardp->cmd_urb) {
213 lbtf_deb_usbd(&udev->dev, "Cmd URB allocation failed\n");
214 goto dealloc;
215 }
216
217 cardp->ep_out_buf = kmalloc(MRVDRV_ETH_TX_PACKET_BUFFER_SIZE,
218 GFP_KERNEL);
219 if (!cardp->ep_out_buf) {
220 lbtf_deb_usbd(&udev->dev, "Could not allocate buffer\n");
221 goto dealloc;
222 }
223
224 priv = lbtf_add_card(cardp, &udev->dev);
225 if (!priv)
226 goto dealloc;
227
228 cardp->priv = priv;
229
230 priv->hw_host_to_card = if_usb_host_to_card;
231 priv->hw_prog_firmware = if_usb_prog_firmware;
232 priv->hw_reset_device = if_usb_reset_device;
233 cardp->boot2_version = udev->descriptor.bcdDevice;
234
235 usb_get_dev(udev);
236 usb_set_intfdata(intf, cardp);
237
238 return 0;
239
240 dealloc:
241 if_usb_free(cardp);
242 error:
243 lbtf_deb_leave(LBTF_DEB_MAIN);
244 return -ENOMEM;
245 }
246
247 /**
248 * if_usb_disconnect - free resource and cleanup
249 *
250 * @intf USB interface structure
251 */
252 static void if_usb_disconnect(struct usb_interface *intf)
253 {
254 struct if_usb_card *cardp = usb_get_intfdata(intf);
255 struct lbtf_private *priv = (struct lbtf_private *) cardp->priv;
256
257 lbtf_deb_enter(LBTF_DEB_MAIN);
258
259 if_usb_reset_device(cardp);
260
261 if (priv)
262 lbtf_remove_card(priv);
263
264 /* Unlink and free urb */
265 if_usb_free(cardp);
266
267 usb_set_intfdata(intf, NULL);
268 usb_put_dev(interface_to_usbdev(intf));
269
270 lbtf_deb_leave(LBTF_DEB_MAIN);
271 }
272
273 /**
274 * if_usb_send_fw_pkt - This function downloads the FW
275 *
276 * @priv pointer to struct lbtf_private
277 *
278 * Returns: 0
279 */
280 static int if_usb_send_fw_pkt(struct if_usb_card *cardp)
281 {
282 struct fwdata *fwdata = cardp->ep_out_buf;
283 u8 *firmware = (u8 *) cardp->fw->data;
284
285 lbtf_deb_enter(LBTF_DEB_FW);
286
287 /* If we got a CRC failure on the last block, back
288 up and retry it */
289 if (!cardp->CRC_OK) {
290 cardp->totalbytes = cardp->fwlastblksent;
291 cardp->fwseqnum--;
292 }
293
294 lbtf_deb_usb2(&cardp->udev->dev, "totalbytes = %d\n",
295 cardp->totalbytes);
296
297 /* struct fwdata (which we sent to the card) has an
298 extra __le32 field in between the header and the data,
299 which is not in the struct fwheader in the actual
300 firmware binary. Insert the seqnum in the middle... */
301 memcpy(&fwdata->hdr, &firmware[cardp->totalbytes],
302 sizeof(struct fwheader));
303
304 cardp->fwlastblksent = cardp->totalbytes;
305 cardp->totalbytes += sizeof(struct fwheader);
306
307 memcpy(fwdata->data, &firmware[cardp->totalbytes],
308 le32_to_cpu(fwdata->hdr.datalength));
309
310 lbtf_deb_usb2(&cardp->udev->dev, "Data length = %d\n",
311 le32_to_cpu(fwdata->hdr.datalength));
312
313 fwdata->seqnum = cpu_to_le32(++cardp->fwseqnum);
314 cardp->totalbytes += le32_to_cpu(fwdata->hdr.datalength);
315
316 usb_tx_block(cardp, cardp->ep_out_buf, sizeof(struct fwdata) +
317 le32_to_cpu(fwdata->hdr.datalength), 0);
318
319 if (fwdata->hdr.dnldcmd == cpu_to_le32(FW_HAS_DATA_TO_RECV)) {
320 lbtf_deb_usb2(&cardp->udev->dev, "There are data to follow\n");
321 lbtf_deb_usb2(&cardp->udev->dev, "seqnum = %d totalbytes = %d\n",
322 cardp->fwseqnum, cardp->totalbytes);
323 } else if (fwdata->hdr.dnldcmd == cpu_to_le32(FW_HAS_LAST_BLOCK)) {
324 lbtf_deb_usb2(&cardp->udev->dev, "Host has finished FW downloading\n");
325 lbtf_deb_usb2(&cardp->udev->dev, "Donwloading FW JUMP BLOCK\n");
326
327 /* Host has finished FW downloading
328 * Donwloading FW JUMP BLOCK
329 */
330 cardp->fwfinalblk = 1;
331 }
332
333 lbtf_deb_usb2(&cardp->udev->dev, "Firmware download done; size %d\n",
334 cardp->totalbytes);
335
336 lbtf_deb_leave(LBTF_DEB_FW);
337 return 0;
338 }
339
340 static int if_usb_reset_device(struct if_usb_card *cardp)
341 {
342 struct cmd_ds_802_11_reset *cmd = cardp->ep_out_buf + 4;
343 int ret;
344
345 lbtf_deb_enter(LBTF_DEB_USB);
346
347 *(__le32 *)cardp->ep_out_buf = cpu_to_le32(CMD_TYPE_REQUEST);
348
349 cmd->hdr.command = cpu_to_le16(CMD_802_11_RESET);
350 cmd->hdr.size = cpu_to_le16(sizeof(struct cmd_ds_802_11_reset));
351 cmd->hdr.result = cpu_to_le16(0);
352 cmd->hdr.seqnum = cpu_to_le16(0x5a5a);
353 cmd->action = cpu_to_le16(CMD_ACT_HALT);
354 usb_tx_block(cardp, cardp->ep_out_buf,
355 4 + sizeof(struct cmd_ds_802_11_reset), 0);
356
357 msleep(100);
358 ret = usb_reset_device(cardp->udev);
359 msleep(100);
360
361 lbtf_deb_leave_args(LBTF_DEB_USB, "ret %d", ret);
362
363 return ret;
364 }
365 EXPORT_SYMBOL_GPL(if_usb_reset_device);
366
367 /**
368 * usb_tx_block - transfer data to the device
369 *
370 * @priv pointer to struct lbtf_private
371 * @payload pointer to payload data
372 * @nb data length
373 * @data non-zero for data, zero for commands
374 *
375 * Returns: 0 on success, nonzero otherwise.
376 */
377 static int usb_tx_block(struct if_usb_card *cardp, uint8_t *payload,
378 uint16_t nb, u8 data)
379 {
380 int ret = -1;
381 struct urb *urb;
382
383 lbtf_deb_enter(LBTF_DEB_USB);
384 /* check if device is removed */
385 if (cardp->priv->surpriseremoved) {
386 lbtf_deb_usbd(&cardp->udev->dev, "Device removed\n");
387 goto tx_ret;
388 }
389
390 if (data)
391 urb = cardp->tx_urb;
392 else
393 urb = cardp->cmd_urb;
394
395 usb_fill_bulk_urb(urb, cardp->udev,
396 usb_sndbulkpipe(cardp->udev,
397 cardp->ep_out),
398 payload, nb, if_usb_write_bulk_callback, cardp);
399
400 urb->transfer_flags |= URB_ZERO_PACKET;
401
402 if (usb_submit_urb(urb, GFP_ATOMIC)) {
403 lbtf_deb_usbd(&cardp->udev->dev, "usb_submit_urb failed: %d\n", ret);
404 goto tx_ret;
405 }
406
407 lbtf_deb_usb2(&cardp->udev->dev, "usb_submit_urb success\n");
408
409 ret = 0;
410
411 tx_ret:
412 lbtf_deb_leave(LBTF_DEB_USB);
413 return ret;
414 }
415
416 static int __if_usb_submit_rx_urb(struct if_usb_card *cardp,
417 void (*callbackfn)(struct urb *urb))
418 {
419 struct sk_buff *skb;
420 int ret = -1;
421
422 lbtf_deb_enter(LBTF_DEB_USB);
423
424 skb = dev_alloc_skb(MRVDRV_ETH_RX_PACKET_BUFFER_SIZE);
425 if (!skb) {
426 pr_err("No free skb\n");
427 lbtf_deb_leave(LBTF_DEB_USB);
428 return -1;
429 }
430
431 cardp->rx_skb = skb;
432
433 /* Fill the receive configuration URB and initialise the Rx call back */
434 usb_fill_bulk_urb(cardp->rx_urb, cardp->udev,
435 usb_rcvbulkpipe(cardp->udev, cardp->ep_in),
436 skb_tail_pointer(skb),
437 MRVDRV_ETH_RX_PACKET_BUFFER_SIZE, callbackfn, cardp);
438
439 cardp->rx_urb->transfer_flags |= URB_ZERO_PACKET;
440
441 lbtf_deb_usb2(&cardp->udev->dev, "Pointer for rx_urb %p\n", cardp->rx_urb);
442 ret = usb_submit_urb(cardp->rx_urb, GFP_ATOMIC);
443 if (ret) {
444 lbtf_deb_usbd(&cardp->udev->dev, "Submit Rx URB failed: %d\n", ret);
445 kfree_skb(skb);
446 cardp->rx_skb = NULL;
447 lbtf_deb_leave(LBTF_DEB_USB);
448 return -1;
449 } else {
450 lbtf_deb_usb2(&cardp->udev->dev, "Submit Rx URB success\n");
451 lbtf_deb_leave(LBTF_DEB_USB);
452 return 0;
453 }
454 }
455
456 static int if_usb_submit_rx_urb_fwload(struct if_usb_card *cardp)
457 {
458 return __if_usb_submit_rx_urb(cardp, &if_usb_receive_fwload);
459 }
460
461 static int if_usb_submit_rx_urb(struct if_usb_card *cardp)
462 {
463 return __if_usb_submit_rx_urb(cardp, &if_usb_receive);
464 }
465
466 static void if_usb_receive_fwload(struct urb *urb)
467 {
468 struct if_usb_card *cardp = urb->context;
469 struct sk_buff *skb = cardp->rx_skb;
470 struct fwsyncheader *syncfwheader;
471 struct bootcmdresp bcmdresp;
472
473 lbtf_deb_enter(LBTF_DEB_USB);
474 if (urb->status) {
475 lbtf_deb_usbd(&cardp->udev->dev,
476 "URB status is failed during fw load\n");
477 kfree_skb(skb);
478 lbtf_deb_leave(LBTF_DEB_USB);
479 return;
480 }
481
482 if (cardp->fwdnldover) {
483 __le32 *tmp = (__le32 *)(skb->data);
484
485 if (tmp[0] == cpu_to_le32(CMD_TYPE_INDICATION) &&
486 tmp[1] == cpu_to_le32(MACREG_INT_CODE_FIRMWARE_READY)) {
487 /* Firmware ready event received */
488 pr_info("Firmware ready event received\n");
489 wake_up(&cardp->fw_wq);
490 } else {
491 lbtf_deb_usb("Waiting for confirmation; got %x %x\n",
492 le32_to_cpu(tmp[0]), le32_to_cpu(tmp[1]));
493 if_usb_submit_rx_urb_fwload(cardp);
494 }
495 kfree_skb(skb);
496 lbtf_deb_leave(LBTF_DEB_USB);
497 return;
498 }
499 if (cardp->bootcmdresp <= 0) {
500 memcpy(&bcmdresp, skb->data, sizeof(bcmdresp));
501
502 if (le16_to_cpu(cardp->udev->descriptor.bcdDevice) < 0x3106) {
503 kfree_skb(skb);
504 if_usb_submit_rx_urb_fwload(cardp);
505 cardp->bootcmdresp = 1;
506 /* Received valid boot command response */
507 lbtf_deb_usbd(&cardp->udev->dev,
508 "Received valid boot command response\n");
509 lbtf_deb_leave(LBTF_DEB_USB);
510 return;
511 }
512 if (bcmdresp.magic != cpu_to_le32(BOOT_CMD_MAGIC_NUMBER)) {
513 if (bcmdresp.magic == cpu_to_le32(CMD_TYPE_REQUEST) ||
514 bcmdresp.magic == cpu_to_le32(CMD_TYPE_DATA) ||
515 bcmdresp.magic == cpu_to_le32(CMD_TYPE_INDICATION)) {
516 if (!cardp->bootcmdresp)
517 pr_info("Firmware already seems alive; resetting\n");
518 cardp->bootcmdresp = -1;
519 } else {
520 pr_info("boot cmd response wrong magic number (0x%x)\n",
521 le32_to_cpu(bcmdresp.magic));
522 }
523 } else if (bcmdresp.cmd != BOOT_CMD_FW_BY_USB) {
524 pr_info("boot cmd response cmd_tag error (%d)\n",
525 bcmdresp.cmd);
526 } else if (bcmdresp.result != BOOT_CMD_RESP_OK) {
527 pr_info("boot cmd response result error (%d)\n",
528 bcmdresp.result);
529 } else {
530 cardp->bootcmdresp = 1;
531 lbtf_deb_usbd(&cardp->udev->dev,
532 "Received valid boot command response\n");
533 }
534
535 kfree_skb(skb);
536 if_usb_submit_rx_urb_fwload(cardp);
537 lbtf_deb_leave(LBTF_DEB_USB);
538 return;
539 }
540
541 syncfwheader = kmemdup(skb->data, sizeof(struct fwsyncheader),
542 GFP_ATOMIC);
543 if (!syncfwheader) {
544 lbtf_deb_usbd(&cardp->udev->dev, "Failure to allocate syncfwheader\n");
545 kfree_skb(skb);
546 lbtf_deb_leave(LBTF_DEB_USB);
547 return;
548 }
549
550 if (!syncfwheader->cmd) {
551 lbtf_deb_usb2(&cardp->udev->dev, "FW received Blk with correct CRC\n");
552 lbtf_deb_usb2(&cardp->udev->dev, "FW received Blk seqnum = %d\n",
553 le32_to_cpu(syncfwheader->seqnum));
554 cardp->CRC_OK = 1;
555 } else {
556 lbtf_deb_usbd(&cardp->udev->dev, "FW received Blk with CRC error\n");
557 cardp->CRC_OK = 0;
558 }
559
560 kfree_skb(skb);
561
562 /* reschedule timer for 200ms hence */
563 mod_timer(&cardp->fw_timeout, jiffies + (HZ/5));
564
565 if (cardp->fwfinalblk) {
566 cardp->fwdnldover = 1;
567 goto exit;
568 }
569
570 if_usb_send_fw_pkt(cardp);
571
572 exit:
573 if_usb_submit_rx_urb_fwload(cardp);
574
575 kfree(syncfwheader);
576
577 lbtf_deb_leave(LBTF_DEB_USB);
578 }
579
580 #define MRVDRV_MIN_PKT_LEN 30
581
582 static inline void process_cmdtypedata(int recvlength, struct sk_buff *skb,
583 struct if_usb_card *cardp,
584 struct lbtf_private *priv)
585 {
586 if (recvlength > MRVDRV_ETH_RX_PACKET_BUFFER_SIZE + MESSAGE_HEADER_LEN
587 || recvlength < MRVDRV_MIN_PKT_LEN) {
588 lbtf_deb_usbd(&cardp->udev->dev, "Packet length is Invalid\n");
589 kfree_skb(skb);
590 return;
591 }
592
593 skb_put(skb, recvlength);
594 skb_pull(skb, MESSAGE_HEADER_LEN);
595 lbtf_rx(priv, skb);
596 }
597
598 static inline void process_cmdrequest(int recvlength, uint8_t *recvbuff,
599 struct sk_buff *skb,
600 struct if_usb_card *cardp,
601 struct lbtf_private *priv)
602 {
603 if (recvlength > LBS_CMD_BUFFER_SIZE) {
604 lbtf_deb_usbd(&cardp->udev->dev,
605 "The receive buffer is too large\n");
606 kfree_skb(skb);
607 return;
608 }
609
610 BUG_ON(!in_interrupt());
611
612 spin_lock(&priv->driver_lock);
613 memcpy(priv->cmd_resp_buff, recvbuff + MESSAGE_HEADER_LEN,
614 recvlength - MESSAGE_HEADER_LEN);
615 kfree_skb(skb);
616 lbtf_cmd_response_rx(priv);
617 spin_unlock(&priv->driver_lock);
618 }
619
620 /**
621 * if_usb_receive - read data received from the device.
622 *
623 * @urb pointer to struct urb
624 */
625 static void if_usb_receive(struct urb *urb)
626 {
627 struct if_usb_card *cardp = urb->context;
628 struct sk_buff *skb = cardp->rx_skb;
629 struct lbtf_private *priv = cardp->priv;
630 int recvlength = urb->actual_length;
631 uint8_t *recvbuff = NULL;
632 uint32_t recvtype = 0;
633 __le32 *pkt = (__le32 *) skb->data;
634
635 lbtf_deb_enter(LBTF_DEB_USB);
636
637 if (recvlength) {
638 if (urb->status) {
639 lbtf_deb_usbd(&cardp->udev->dev, "RX URB failed: %d\n",
640 urb->status);
641 kfree_skb(skb);
642 goto setup_for_next;
643 }
644
645 recvbuff = skb->data;
646 recvtype = le32_to_cpu(pkt[0]);
647 lbtf_deb_usbd(&cardp->udev->dev,
648 "Recv length = 0x%x, Recv type = 0x%X\n",
649 recvlength, recvtype);
650 } else if (urb->status) {
651 kfree_skb(skb);
652 lbtf_deb_leave(LBTF_DEB_USB);
653 return;
654 }
655
656 switch (recvtype) {
657 case CMD_TYPE_DATA:
658 process_cmdtypedata(recvlength, skb, cardp, priv);
659 break;
660
661 case CMD_TYPE_REQUEST:
662 process_cmdrequest(recvlength, recvbuff, skb, cardp, priv);
663 break;
664
665 case CMD_TYPE_INDICATION:
666 {
667 /* Event cause handling */
668 u32 event_cause = le32_to_cpu(pkt[1]);
669 lbtf_deb_usbd(&cardp->udev->dev, "**EVENT** 0x%X\n", event_cause);
670
671 /* Icky undocumented magic special case */
672 if (event_cause & 0xffff0000) {
673 u16 tmp;
674 u8 retrycnt;
675 u8 failure;
676
677 tmp = event_cause >> 16;
678 retrycnt = tmp & 0x00ff;
679 failure = (tmp & 0xff00) >> 8;
680 lbtf_send_tx_feedback(priv, retrycnt, failure);
681 } else if (event_cause == LBTF_EVENT_BCN_SENT)
682 lbtf_bcn_sent(priv);
683 else
684 lbtf_deb_usbd(&cardp->udev->dev,
685 "Unsupported notification %d received\n",
686 event_cause);
687 kfree_skb(skb);
688 break;
689 }
690 default:
691 lbtf_deb_usbd(&cardp->udev->dev,
692 "libertastf: unknown command type 0x%X\n", recvtype);
693 kfree_skb(skb);
694 break;
695 }
696
697 setup_for_next:
698 if_usb_submit_rx_urb(cardp);
699 lbtf_deb_leave(LBTF_DEB_USB);
700 }
701
702 /**
703 * if_usb_host_to_card - Download data to the device
704 *
705 * @priv pointer to struct lbtf_private structure
706 * @type type of data
707 * @buf pointer to data buffer
708 * @len number of bytes
709 *
710 * Returns: 0 on success, nonzero otherwise
711 */
712 static int if_usb_host_to_card(struct lbtf_private *priv, uint8_t type,
713 uint8_t *payload, uint16_t nb)
714 {
715 struct if_usb_card *cardp = priv->card;
716 u8 data = 0;
717
718 lbtf_deb_usbd(&cardp->udev->dev, "*** type = %u\n", type);
719 lbtf_deb_usbd(&cardp->udev->dev, "size after = %d\n", nb);
720
721 if (type == MVMS_CMD) {
722 *(__le32 *)cardp->ep_out_buf = cpu_to_le32(CMD_TYPE_REQUEST);
723 } else {
724 *(__le32 *)cardp->ep_out_buf = cpu_to_le32(CMD_TYPE_DATA);
725 data = 1;
726 }
727
728 memcpy((cardp->ep_out_buf + MESSAGE_HEADER_LEN), payload, nb);
729
730 return usb_tx_block(cardp, cardp->ep_out_buf, nb + MESSAGE_HEADER_LEN,
731 data);
732 }
733
734 /**
735 * if_usb_issue_boot_command - Issue boot command to Boot2.
736 *
737 * @ivalue 1 boots from FW by USB-Download, 2 boots from FW in EEPROM.
738 *
739 * Returns: 0
740 */
741 static int if_usb_issue_boot_command(struct if_usb_card *cardp, int ivalue)
742 {
743 struct bootcmd *bootcmd = cardp->ep_out_buf;
744
745 /* Prepare command */
746 bootcmd->magic = cpu_to_le32(BOOT_CMD_MAGIC_NUMBER);
747 bootcmd->cmd = ivalue;
748 memset(bootcmd->pad, 0, sizeof(bootcmd->pad));
749
750 /* Issue command */
751 usb_tx_block(cardp, cardp->ep_out_buf, sizeof(*bootcmd), 0);
752
753 return 0;
754 }
755
756
757 /**
758 * check_fwfile_format - Check the validity of Boot2/FW image.
759 *
760 * @data pointer to image
761 * @totlen image length
762 *
763 * Returns: 0 if the image is valid, nonzero otherwise.
764 */
765 static int check_fwfile_format(const u8 *data, u32 totlen)
766 {
767 u32 bincmd, exit;
768 u32 blksize, offset, len;
769 int ret;
770
771 ret = 1;
772 exit = len = 0;
773
774 do {
775 struct fwheader *fwh = (void *) data;
776
777 bincmd = le32_to_cpu(fwh->dnldcmd);
778 blksize = le32_to_cpu(fwh->datalength);
779 switch (bincmd) {
780 case FW_HAS_DATA_TO_RECV:
781 offset = sizeof(struct fwheader) + blksize;
782 data += offset;
783 len += offset;
784 if (len >= totlen)
785 exit = 1;
786 break;
787 case FW_HAS_LAST_BLOCK:
788 exit = 1;
789 ret = 0;
790 break;
791 default:
792 exit = 1;
793 break;
794 }
795 } while (!exit);
796
797 if (ret)
798 pr_err("firmware file format check FAIL\n");
799 else
800 lbtf_deb_fw("firmware file format check PASS\n");
801
802 return ret;
803 }
804
805
806 static int if_usb_prog_firmware(struct if_usb_card *cardp)
807 {
808 int i = 0;
809 static int reset_count = 10;
810 int ret = 0;
811
812 lbtf_deb_enter(LBTF_DEB_USB);
813
814 kparam_block_sysfs_write(fw_name);
815 ret = request_firmware(&cardp->fw, lbtf_fw_name, &cardp->udev->dev);
816 if (ret < 0) {
817 pr_err("request_firmware() failed with %#x\n", ret);
818 pr_err("firmware %s not found\n", lbtf_fw_name);
819 kparam_unblock_sysfs_write(fw_name);
820 goto done;
821 }
822 kparam_unblock_sysfs_write(fw_name);
823
824 if (check_fwfile_format(cardp->fw->data, cardp->fw->size))
825 goto release_fw;
826
827 restart:
828 if (if_usb_submit_rx_urb_fwload(cardp) < 0) {
829 lbtf_deb_usbd(&cardp->udev->dev, "URB submission is failed\n");
830 ret = -1;
831 goto release_fw;
832 }
833
834 cardp->bootcmdresp = 0;
835 do {
836 int j = 0;
837 i++;
838 /* Issue Boot command = 1, Boot from Download-FW */
839 if_usb_issue_boot_command(cardp, BOOT_CMD_FW_BY_USB);
840 /* wait for command response */
841 do {
842 j++;
843 msleep_interruptible(100);
844 } while (cardp->bootcmdresp == 0 && j < 10);
845 } while (cardp->bootcmdresp == 0 && i < 5);
846
847 if (cardp->bootcmdresp <= 0) {
848 if (--reset_count >= 0) {
849 if_usb_reset_device(cardp);
850 goto restart;
851 }
852 return -1;
853 }
854
855 i = 0;
856
857 cardp->totalbytes = 0;
858 cardp->fwlastblksent = 0;
859 cardp->CRC_OK = 1;
860 cardp->fwdnldover = 0;
861 cardp->fwseqnum = -1;
862 cardp->totalbytes = 0;
863 cardp->fwfinalblk = 0;
864
865 /* Send the first firmware packet... */
866 if_usb_send_fw_pkt(cardp);
867
868 /* ... and wait for the process to complete */
869 wait_event_interruptible(cardp->fw_wq, cardp->priv->surpriseremoved ||
870 cardp->fwdnldover);
871
872 del_timer_sync(&cardp->fw_timeout);
873 usb_kill_urb(cardp->rx_urb);
874
875 if (!cardp->fwdnldover) {
876 pr_info("failed to load fw, resetting device!\n");
877 if (--reset_count >= 0) {
878 if_usb_reset_device(cardp);
879 goto restart;
880 }
881
882 pr_info("FW download failure, time = %d ms\n", i * 100);
883 ret = -1;
884 goto release_fw;
885 }
886
887 cardp->priv->fw_ready = 1;
888
889 release_fw:
890 release_firmware(cardp->fw);
891 cardp->fw = NULL;
892
893 if_usb_setup_firmware(cardp->priv);
894
895 done:
896 lbtf_deb_leave_args(LBTF_DEB_USB, "ret %d", ret);
897 return ret;
898 }
899 EXPORT_SYMBOL_GPL(if_usb_prog_firmware);
900
901
902 #define if_usb_suspend NULL
903 #define if_usb_resume NULL
904
905 static struct usb_driver if_usb_driver = {
906 .name = DRV_NAME,
907 .probe = if_usb_probe,
908 .disconnect = if_usb_disconnect,
909 .id_table = if_usb_table,
910 .suspend = if_usb_suspend,
911 .resume = if_usb_resume,
912 };
913
914 static int __init if_usb_init_module(void)
915 {
916 int ret = 0;
917
918 lbtf_deb_enter(LBTF_DEB_MAIN);
919
920 ret = usb_register(&if_usb_driver);
921
922 lbtf_deb_leave_args(LBTF_DEB_MAIN, "ret %d", ret);
923 return ret;
924 }
925
926 static void __exit if_usb_exit_module(void)
927 {
928 lbtf_deb_enter(LBTF_DEB_MAIN);
929 usb_deregister(&if_usb_driver);
930 lbtf_deb_leave(LBTF_DEB_MAIN);
931 }
932
933 module_init(if_usb_init_module);
934 module_exit(if_usb_exit_module);
935
936 MODULE_DESCRIPTION("8388 USB WLAN Thinfirm Driver");
937 MODULE_AUTHOR("Cozybit Inc.");
938 MODULE_LICENSE("GPL");
Tomato firmware and modifications.