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[PATCH] libertas: move vendor & product id's into if_usb.c
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / net / wireless / libertas / if_usb.c
blob38063de9da43467b9cc4dbf79f4d3c12086894d6
1 /**
2 * This file contains functions used in USB interface module.
3 */
4 #include <linux/delay.h>
5 #include <linux/firmware.h>
6 #include <linux/netdevice.h>
7 #include <linux/usb.h>
8
9 #include "host.h"
10 #include "sbi.h"
11 #include "decl.h"
12 #include "defs.h"
13 #include "dev.h"
14 #include "if_usb.h"
15
16 #define MESSAGE_HEADER_LEN 4
17
18 static const char usbdriver_name[] = "usb8xxx";
19
20 static struct usb_device_id if_usb_table[] = {
21 /* Enter the device signature inside */
22 { USB_DEVICE(0x1286, 0x2001) },
23 { USB_DEVICE(0x05a3, 0x8388) },
24 {} /* Terminating entry */
25 };
26
27 MODULE_DEVICE_TABLE(usb, if_usb_table);
28
29 static void if_usb_receive(struct urb *urb);
30 static void if_usb_receive_fwload(struct urb *urb);
31
32 /**
33 * @brief call back function to handle the status of the URB
34 * @param urb pointer to urb structure
35 * @return N/A
36 */
37 static void if_usb_write_bulk_callback(struct urb *urb)
38 {
39 wlan_private *priv = (wlan_private *) (urb->context);
40 wlan_adapter *adapter = priv->adapter;
41 struct net_device *dev = priv->wlan_dev.netdev;
42
43 /* handle the transmission complete validations */
44
45 if (urb->status != 0) {
46 /* print the failure status number for debug */
47 lbs_pr_info("URB in failure status\n");
48 } else {
49 lbs_dev_dbg(2, &urb->dev->dev, "URB status is successfull\n");
50 lbs_dev_dbg(2, &urb->dev->dev, "Actual length transmitted %d\n",
51 urb->actual_length);
52 priv->wlan_dev.dnld_sent = DNLD_RES_RECEIVED;
53 /* Wake main thread if commands are pending */
54 if (!adapter->cur_cmd)
55 wake_up_interruptible(&priv->mainthread.waitq);
56 if ((adapter->connect_status == libertas_connected))
57 netif_wake_queue(dev);
58 }
59
60 return;
61 }
62
63 /**
64 * @brief free tx/rx urb, skb and rx buffer
65 * @param cardp pointer usb_card_rec
66 * @return N/A
67 */
68 void if_usb_free(struct usb_card_rec *cardp)
69 {
70 ENTER();
71
72 /* Unlink tx & rx urb */
73 usb_kill_urb(cardp->tx_urb);
74 usb_kill_urb(cardp->rx_urb);
75
76 usb_free_urb(cardp->tx_urb);
77 cardp->tx_urb = NULL;
78
79 usb_free_urb(cardp->rx_urb);
80 cardp->rx_urb = NULL;
81
82 kfree(cardp->bulk_out_buffer);
83 cardp->bulk_out_buffer = NULL;
84
85 LEAVE();
86 return;
87 }
88
89 /**
90 * @brief sets the configuration values
91 * @param ifnum interface number
92 * @param id pointer to usb_device_id
93 * @return 0 on success, error code on failure
94 */
95 static int if_usb_probe(struct usb_interface *intf,
96 const struct usb_device_id *id)
97 {
98 struct usb_device *udev;
99 struct usb_host_interface *iface_desc;
100 struct usb_endpoint_descriptor *endpoint;
101 wlan_private *pwlanpriv;
102 struct usb_card_rec *usb_cardp;
103 int i;
104
105 udev = interface_to_usbdev(intf);
106
107 usb_cardp = kzalloc(sizeof(struct usb_card_rec), GFP_KERNEL);
108 if (!usb_cardp) {
109 lbs_pr_err("Out of memory allocating private data.\n");
110 goto error;
111 }
112
113 usb_cardp->udev = udev;
114 iface_desc = intf->cur_altsetting;
115
116 lbs_dev_dbg(1, &udev->dev, "bcdUSB = 0x%X bDeviceClass = 0x%X"
117 " bDeviceSubClass = 0x%X, bDeviceProtocol = 0x%X\n",
118 udev->descriptor.bcdUSB,
119 udev->descriptor.bDeviceClass,
120 udev->descriptor.bDeviceSubClass,
121 udev->descriptor.bDeviceProtocol);
122
123 for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) {
124 endpoint = &iface_desc->endpoint[i].desc;
125 if ((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
126 && ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
127 USB_ENDPOINT_XFER_BULK)) {
128 /* we found a bulk in endpoint */
129 lbs_dev_dbg(1, &udev->dev, "Bulk in size is %d\n",
130 endpoint->wMaxPacketSize);
131 if (!
132 (usb_cardp->rx_urb =
133 usb_alloc_urb(0, GFP_KERNEL))) {
134 lbs_dev_dbg(1, &udev->dev,
135 "Rx URB allocation failed\n");
136 goto dealloc;
137 }
138 usb_cardp->rx_urb_recall = 0;
139
140 usb_cardp->bulk_in_size =
141 endpoint->wMaxPacketSize;
142 usb_cardp->bulk_in_endpointAddr =
143 (endpoint->
144 bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
145 lbs_dev_dbg(1, &udev->dev, "in_endpoint = %d\n",
146 endpoint->bEndpointAddress);
147 }
148
149 if (((endpoint->
150 bEndpointAddress & USB_ENDPOINT_DIR_MASK) ==
151 USB_DIR_OUT)
152 && ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
153 USB_ENDPOINT_XFER_BULK)) {
154 /* We found bulk out endpoint */
155 if (!
156 (usb_cardp->tx_urb =
157 usb_alloc_urb(0, GFP_KERNEL))) {
158 lbs_dev_dbg(1,&udev->dev,
159 "Tx URB allocation failed\n");
160 goto dealloc;
161 }
162
163 usb_cardp->bulk_out_size =
164 endpoint->wMaxPacketSize;
165 lbs_dev_dbg(1, &udev->dev,
166 "Bulk out size is %d\n",
167 endpoint->wMaxPacketSize);
168 usb_cardp->bulk_out_endpointAddr =
169 endpoint->bEndpointAddress;
170 lbs_dev_dbg(1, &udev->dev, "out_endpoint = %d\n",
171 endpoint->bEndpointAddress);
172 usb_cardp->bulk_out_buffer =
173 kmalloc(MRVDRV_ETH_TX_PACKET_BUFFER_SIZE,
174 GFP_KERNEL);
175
176 if (!usb_cardp->bulk_out_buffer) {
177 lbs_dev_dbg(1, &udev->dev,
178 "Could not allocate buffer\n");
179 goto dealloc;
180 }
181 }
182 }
183
184
185 /* At this point wlan_add_card() will be called. Don't worry
186 * about keeping pwlanpriv around since it will be set on our
187 * usb device data in -> add() -> libertas_sbi_register_dev().
188 */
189 if (!(pwlanpriv = wlan_add_card(usb_cardp)))
190 goto dealloc;
191
192 usb_get_dev(udev);
193 usb_set_intfdata(intf, usb_cardp);
194
195 /*
196 * return card structure, which can be got back in the
197 * diconnect function as the ptr
198 * argument.
199 */
200 return 0;
201
202 dealloc:
203 if_usb_free(usb_cardp);
204
205 error:
206 return -ENOMEM;
207 }
208
209 /**
210 * @brief free resource and cleanup
211 * @param udev pointer to usb_device
212 * @param ptr pointer to usb_cardp
213 * @return N/A
214 */
215 static void if_usb_disconnect(struct usb_interface *intf)
216 {
217 struct usb_card_rec *cardp = usb_get_intfdata(intf);
218 wlan_private *priv = (wlan_private *) cardp->priv;
219 wlan_adapter *adapter = NULL;
220
221 adapter = priv->adapter;
222
223 /*
224 * Update Surprise removed to TRUE
225 */
226 adapter->surpriseremoved = 1;
227
228 /* card is removed and we can call wlan_remove_card */
229 lbs_dev_dbg(1, &cardp->udev->dev, "call remove card\n");
230 wlan_remove_card(cardp);
231
232 /* Unlink and free urb */
233 if_usb_free(cardp);
234
235 usb_set_intfdata(intf, NULL);
236 usb_put_dev(interface_to_usbdev(intf));
237
238 return;
239 }
240
241 /**
242 * @brief This function download FW
243 * @param priv pointer to wlan_private
244 * @return 0
245 */
246 static int if_prog_firmware(wlan_private * priv)
247 {
248 struct usb_card_rec *cardp = priv->wlan_dev.card;
249 struct FWData *fwdata;
250 struct fwheader *fwheader;
251 u8 *firmware = priv->firmware->data;
252
253 fwdata = kmalloc(sizeof(struct FWData), GFP_ATOMIC);
254
255 if (!fwdata)
256 return -1;
257
258 fwheader = &fwdata->fwheader;
259
260 if (!cardp->CRC_OK) {
261 cardp->totalbytes = cardp->fwlastblksent;
262 cardp->fwseqnum = cardp->lastseqnum - 1;
263 }
264
265 lbs_dev_dbg(2, &cardp->udev->dev, "totalbytes = %d\n",
266 cardp->totalbytes);
267
268 memcpy(fwheader, &firmware[cardp->totalbytes],
269 sizeof(struct fwheader));
270
271 cardp->fwlastblksent = cardp->totalbytes;
272 cardp->totalbytes += sizeof(struct fwheader);
273
274 lbs_dev_dbg(2, &cardp->udev->dev,"Copy Data\n");
275 memcpy(fwdata->data, &firmware[cardp->totalbytes],
276 fwdata->fwheader.datalength);
277
278 lbs_dev_dbg(2, &cardp->udev->dev,
279 "Data length = %d\n", fwdata->fwheader.datalength);
280
281 cardp->fwseqnum = cardp->fwseqnum + 1;
282
283 fwdata->seqnum = cardp->fwseqnum;
284 cardp->lastseqnum = fwdata->seqnum;
285 cardp->totalbytes += fwdata->fwheader.datalength;
286
287 if (fwheader->dnldcmd == FW_HAS_DATA_TO_RECV) {
288 lbs_dev_dbg(2, &cardp->udev->dev, "There is data to follow\n");
289 lbs_dev_dbg(2, &cardp->udev->dev,
290 "seqnum = %d totalbytes = %d\n", cardp->fwseqnum,
291 cardp->totalbytes);
292 memcpy(cardp->bulk_out_buffer, fwheader, FW_DATA_XMIT_SIZE);
293 usb_tx_block(priv, cardp->bulk_out_buffer, FW_DATA_XMIT_SIZE);
294
295 } else if (fwdata->fwheader.dnldcmd == FW_HAS_LAST_BLOCK) {
296 lbs_dev_dbg(2, &cardp->udev->dev,
297 "Host has finished FW downloading\n");
298 lbs_dev_dbg(2, &cardp->udev->dev,
299 "Donwloading FW JUMP BLOCK\n");
300 memcpy(cardp->bulk_out_buffer, fwheader, FW_DATA_XMIT_SIZE);
301 usb_tx_block(priv, cardp->bulk_out_buffer, FW_DATA_XMIT_SIZE);
302 cardp->fwfinalblk = 1;
303 }
304
305 lbs_dev_dbg(2, &cardp->udev->dev,
306 "The firmware download is done size is %d\n",
307 cardp->totalbytes);
308
309 kfree(fwdata);
310
311 return 0;
312 }
313
314 static int libertas_do_reset(wlan_private *priv)
315 {
316 int ret;
317 struct usb_card_rec *cardp = priv->wlan_dev.card;
318
319 ret = usb_reset_device(cardp->udev);
320 if (!ret) {
321 msleep(10);
322 reset_device(priv);
323 msleep(10);
324 }
325 return ret;
326 }
327
328 /**
329 * @brief This function transfer the data to the device.
330 * @param priv pointer to wlan_private
331 * @param payload pointer to payload data
332 * @param nb data length
333 * @return 0 or -1
334 */
335 int usb_tx_block(wlan_private * priv, u8 * payload, u16 nb)
336 {
337 /* pointer to card structure */
338 struct usb_card_rec *cardp = priv->wlan_dev.card;
339 int ret = -1;
340
341 /* check if device is removed */
342 if (priv->adapter->surpriseremoved) {
343 lbs_dev_dbg(1, &cardp->udev->dev, "Device removed\n");
344 goto tx_ret;
345 }
346
347 usb_fill_bulk_urb(cardp->tx_urb, cardp->udev,
348 usb_sndbulkpipe(cardp->udev,
349 cardp->bulk_out_endpointAddr),
350 payload, nb, if_usb_write_bulk_callback, priv);
351
352 cardp->tx_urb->transfer_flags |= URB_ZERO_PACKET;
353
354 if ((ret = usb_submit_urb(cardp->tx_urb, GFP_ATOMIC))) {
355 /* transfer failed */
356 lbs_dev_dbg(1, &cardp->udev->dev, "usb_submit_urb failed\n");
357 ret = -1;
358 } else {
359 lbs_dev_dbg(2, &cardp->udev->dev, "usb_submit_urb success\n");
360 ret = 0;
361 }
362
363 tx_ret:
364 return ret;
365 }
366
367 static int __if_usb_submit_rx_urb(wlan_private * priv,
368 void (*callbackfn)
369 (struct urb *urb))
370 {
371 struct usb_card_rec *cardp = priv->wlan_dev.card;
372 struct sk_buff *skb;
373 struct read_cb_info *rinfo = &cardp->rinfo;
374 int ret = -1;
375
376 if (!(skb = dev_alloc_skb(MRVDRV_ETH_RX_PACKET_BUFFER_SIZE))) {
377 lbs_pr_err("No free skb\n");
378 goto rx_ret;
379 }
380
381 rinfo->skb = skb;
382
383 /* Fill the receive configuration URB and initialise the Rx call back */
384 usb_fill_bulk_urb(cardp->rx_urb, cardp->udev,
385 usb_rcvbulkpipe(cardp->udev,
386 cardp->bulk_in_endpointAddr),
387 (void *) (skb->tail + (size_t) IPFIELD_ALIGN_OFFSET),
388 MRVDRV_ETH_RX_PACKET_BUFFER_SIZE, callbackfn,
389 rinfo);
390
391 cardp->rx_urb->transfer_flags |= URB_ZERO_PACKET;
392
393 lbs_dev_dbg(2, &cardp->udev->dev, "Pointer for rx_urb %p\n", cardp->rx_urb);
394 if ((ret = usb_submit_urb(cardp->rx_urb, GFP_ATOMIC))) {
395 /* handle failure conditions */
396 lbs_dev_dbg(1, &cardp->udev->dev, "Submit Rx URB failed\n");
397 ret = -1;
398 } else {
399 lbs_dev_dbg(2, &cardp->udev->dev, "Submit Rx URB success\n");
400 ret = 0;
401 }
402
403 rx_ret:
404 return ret;
405 }
406
407 static inline int if_usb_submit_rx_urb_fwload(wlan_private * priv)
408 {
409 return __if_usb_submit_rx_urb(priv, &if_usb_receive_fwload);
410 }
411
412 static inline int if_usb_submit_rx_urb(wlan_private * priv)
413 {
414 return __if_usb_submit_rx_urb(priv, &if_usb_receive);
415 }
416
417 static void if_usb_receive_fwload(struct urb *urb)
418 {
419 struct read_cb_info *rinfo = (struct read_cb_info *)urb->context;
420 wlan_private *priv = rinfo->priv;
421 struct sk_buff *skb = rinfo->skb;
422 struct usb_card_rec *cardp = (struct usb_card_rec *)priv->wlan_dev.card;
423 struct fwsyncheader *syncfwheader;
424 struct bootcmdrespStr bootcmdresp;
425
426 if (urb->status) {
427 lbs_dev_dbg(1, &cardp->udev->dev,
428 "URB status is failed during fw load\n");
429 kfree_skb(skb);
430 return;
431 }
432
433 if (cardp->bootcmdresp == 0) {
434 memcpy (&bootcmdresp, skb->data + IPFIELD_ALIGN_OFFSET,
435 sizeof(bootcmdresp));
436 if (cardp->udev->descriptor.bcdDevice < 0x3106) {
437 kfree_skb(skb);
438 if_usb_submit_rx_urb_fwload(priv);
439 cardp->bootcmdresp = 1;
440 lbs_dev_dbg(1, &cardp->udev->dev,
441 "Received valid boot command response\n");
442 return;
443 }
444 if (bootcmdresp.u32magicnumber != BOOT_CMD_MAGIC_NUMBER) {
445 lbs_pr_info(
446 "boot cmd response wrong magic number (0x%x)\n",
447 bootcmdresp.u32magicnumber);
448 } else if (bootcmdresp.u8cmd_tag != BOOT_CMD_FW_BY_USB) {
449 lbs_pr_info(
450 "boot cmd response cmd_tag error (%d)\n",
451 bootcmdresp.u8cmd_tag);
452 } else if (bootcmdresp.u8result != BOOT_CMD_RESP_OK) {
453 lbs_pr_info(
454 "boot cmd response result error (%d)\n",
455 bootcmdresp.u8result);
456 } else {
457 cardp->bootcmdresp = 1;
458 lbs_dev_dbg(1, &cardp->udev->dev,
459 "Received valid boot command response\n");
460 }
461 kfree_skb(skb);
462 if_usb_submit_rx_urb_fwload(priv);
463 return;
464 }
465
466 syncfwheader = kmalloc(sizeof(struct fwsyncheader), GFP_ATOMIC);
467 if (!syncfwheader) {
468 lbs_dev_dbg(1, &cardp->udev->dev, "Failure to allocate syncfwheader\n");
469 kfree_skb(skb);
470 return;
471 }
472
473 memcpy(syncfwheader, skb->data + IPFIELD_ALIGN_OFFSET,
474 sizeof(struct fwsyncheader));
475
476 if (!syncfwheader->cmd) {
477 lbs_dev_dbg(2, &cardp->udev->dev,
478 "FW received Blk with correct CRC\n");
479 lbs_dev_dbg(2, &cardp->udev->dev,
480 "FW received Blk seqnum = %d\n",
481 syncfwheader->seqnum);
482 cardp->CRC_OK = 1;
483 } else {
484 lbs_dev_dbg(1, &cardp->udev->dev,
485 "FW received Blk with CRC error\n");
486 cardp->CRC_OK = 0;
487 }
488
489 kfree_skb(skb);
490
491 if (cardp->fwfinalblk) {
492 cardp->fwdnldover = 1;
493 goto exit;
494 }
495
496 if_prog_firmware(priv);
497
498 if_usb_submit_rx_urb_fwload(priv);
499 exit:
500 kfree(syncfwheader);
501
502 return;
503
504 }
505
506 #define MRVDRV_MIN_PKT_LEN 30
507
508 static inline void process_cmdtypedata(int recvlength, struct sk_buff *skb,
509 struct usb_card_rec *cardp,
510 wlan_private *priv)
511 {
512 if (recvlength > MRVDRV_ETH_RX_PACKET_BUFFER_SIZE +
513 MESSAGE_HEADER_LEN || recvlength < MRVDRV_MIN_PKT_LEN) {
514 lbs_dev_dbg(1, &cardp->udev->dev,
515 "Packet length is Invalid\n");
516 kfree_skb(skb);
517 return;
518 }
519
520 skb_reserve(skb, IPFIELD_ALIGN_OFFSET);
521 skb_put(skb, recvlength);
522 skb_pull(skb, MESSAGE_HEADER_LEN);
523 libertas_process_rxed_packet(priv, skb);
524 priv->wlan_dev.upld_len = (recvlength - MESSAGE_HEADER_LEN);
525 }
526
527 static inline void process_cmdrequest(int recvlength, u8 *recvbuff,
528 struct sk_buff *skb,
529 struct usb_card_rec *cardp,
530 wlan_private *priv)
531 {
532 u8 *cmdbuf;
533 if (recvlength > MRVDRV_SIZE_OF_CMD_BUFFER) {
534 lbs_dev_dbg(1, &cardp->udev->dev,
535 "The receive buffer is too large\n");
536 kfree_skb(skb);
537 return;
538 }
539
540 if (!in_interrupt())
541 BUG();
542
543 spin_lock(&priv->adapter->driver_lock);
544 /* take care of cur_cmd = NULL case by reading the
545 * data to clear the interrupt */
546 if (!priv->adapter->cur_cmd) {
547 cmdbuf = priv->wlan_dev.upld_buf;
548 priv->adapter->hisregcpy &= ~his_cmdupldrdy;
549 } else
550 cmdbuf = priv->adapter->cur_cmd->bufvirtualaddr;
551
552 cardp->usb_int_cause |= his_cmdupldrdy;
553 priv->wlan_dev.upld_len = (recvlength - MESSAGE_HEADER_LEN);
554 memcpy(cmdbuf, recvbuff + MESSAGE_HEADER_LEN,
555 priv->wlan_dev.upld_len);
556
557 kfree_skb(skb);
558 libertas_interrupt(priv->wlan_dev.netdev);
559 spin_unlock(&priv->adapter->driver_lock);
560
561 lbs_dev_dbg(1, &cardp->udev->dev,
562 "Wake up main thread to handle cmd response\n");
563
564 return;
565 }
566
567 /**
568 * @brief This function reads of the packet into the upload buff,
569 * wake up the main thread and initialise the Rx callack.
570 *
571 * @param urb pointer to struct urb
572 * @return N/A
573 */
574 static void if_usb_receive(struct urb *urb)
575 {
576 struct read_cb_info *rinfo = (struct read_cb_info *)urb->context;
577 wlan_private *priv = rinfo->priv;
578 struct sk_buff *skb = rinfo->skb;
579 struct usb_card_rec *cardp = (struct usb_card_rec *)priv->wlan_dev.card;
580
581 int recvlength = urb->actual_length;
582 u8 *recvbuff = NULL;
583 u32 recvtype;
584
585 ENTER();
586
587 if (recvlength) {
588 if (urb->status) {
589 lbs_dev_dbg(1, &cardp->udev->dev,
590 "URB status is failed\n");
591 kfree_skb(skb);
592 goto setup_for_next;
593 }
594
595 recvbuff = skb->data + IPFIELD_ALIGN_OFFSET;
596 memcpy(&recvtype, recvbuff, sizeof(u32));
597 lbs_dev_dbg(1, &cardp->udev->dev,
598 "Recv length = 0x%x\n", recvlength);
599 lbs_dev_dbg(1, &cardp->udev->dev,
600 "Receive type = 0x%X\n", recvtype);
601 recvtype = le32_to_cpu(recvtype);
602 lbs_dev_dbg(1, &cardp->udev->dev,
603 "Receive type after = 0x%X\n", recvtype);
604 } else if (urb->status)
605 goto rx_exit;
606
607
608 switch (recvtype) {
609 case CMD_TYPE_DATA:
610 process_cmdtypedata(recvlength, skb, cardp, priv);
611 break;
612
613 case CMD_TYPE_REQUEST:
614 process_cmdrequest(recvlength, recvbuff, skb, cardp, priv);
615 break;
616
617 case CMD_TYPE_INDICATION:
618 /* Event cause handling */
619 spin_lock(&priv->adapter->driver_lock);
620 cardp->usb_event_cause = *(u32 *) (recvbuff + MESSAGE_HEADER_LEN);
621 lbs_dev_dbg(1, &cardp->udev->dev,"**EVENT** 0x%X\n",
622 cardp->usb_event_cause);
623 if (cardp->usb_event_cause & 0xffff0000) {
624 libertas_send_tx_feedback(priv);
625 spin_unlock(&priv->adapter->driver_lock);
626 break;
627 }
628 cardp->usb_event_cause = le32_to_cpu(cardp->usb_event_cause) << 3;
629 cardp->usb_int_cause |= his_cardevent;
630 kfree_skb(skb);
631 libertas_interrupt(priv->wlan_dev.netdev);
632 spin_unlock(&priv->adapter->driver_lock);
633 goto rx_exit;
634 default:
635 kfree_skb(skb);
636 break;
637 }
638
639 setup_for_next:
640 if_usb_submit_rx_urb(priv);
641 rx_exit:
642 LEAVE();
643 return;
644 }
645
646 /**
647 * @brief This function downloads data to FW
648 * @param priv pointer to wlan_private structure
649 * @param type type of data
650 * @param buf pointer to data buffer
651 * @param len number of bytes
652 * @return 0 or -1
653 */
654 int libertas_sbi_host_to_card(wlan_private * priv, u8 type, u8 * payload, u16 nb)
655 {
656 int ret = -1;
657 u32 tmp;
658 struct usb_card_rec *cardp = (struct usb_card_rec *)priv->wlan_dev.card;
659
660 lbs_dev_dbg(1, &cardp->udev->dev,"*** type = %u\n", type);
661 lbs_dev_dbg(1, &cardp->udev->dev,"size after = %d\n", nb);
662
663 if (type == MVMS_CMD) {
664 tmp = cpu_to_le32(CMD_TYPE_REQUEST);
665 priv->wlan_dev.dnld_sent = DNLD_CMD_SENT;
666 memcpy(cardp->bulk_out_buffer, (u8 *) & tmp,
667 MESSAGE_HEADER_LEN);
668
669 } else {
670 tmp = cpu_to_le32(CMD_TYPE_DATA);
671 priv->wlan_dev.dnld_sent = DNLD_DATA_SENT;
672 memcpy(cardp->bulk_out_buffer, (u8 *) & tmp,
673 MESSAGE_HEADER_LEN);
674 }
675
676 memcpy((cardp->bulk_out_buffer + MESSAGE_HEADER_LEN), payload, nb);
677
678 ret =
679 usb_tx_block(priv, cardp->bulk_out_buffer, nb + MESSAGE_HEADER_LEN);
680
681 return ret;
682 }
683
684 /* called with adapter->driver_lock held */
685 int libertas_sbi_get_int_status(wlan_private * priv, u8 * ireg)
686 {
687 struct usb_card_rec *cardp = priv->wlan_dev.card;
688
689 *ireg = cardp->usb_int_cause;
690 cardp->usb_int_cause = 0;
691
692 lbs_dev_dbg(1, &cardp->udev->dev,"Int cause is 0x%X\n", *ireg);
693
694 return 0;
695 }
696
697 int libertas_sbi_read_event_cause(wlan_private * priv)
698 {
699 struct usb_card_rec *cardp = priv->wlan_dev.card;
700 priv->adapter->eventcause = cardp->usb_event_cause;
701 /* Re-submit rx urb here to avoid event lost issue */
702 if_usb_submit_rx_urb(priv);
703 return 0;
704 }
705
706 int reset_device(wlan_private *priv)
707 {
708 int ret;
709
710 ret = libertas_prepare_and_send_command(priv, cmd_802_11_reset,
711 cmd_act_halt, 0, 0, NULL);
712 msleep_interruptible(10);
713
714 return ret;
715 }
716
717 int libertas_sbi_unregister_dev(wlan_private * priv)
718 {
719 int ret = 0;
720
721 /* Need to send a Reset command to device before USB resources freed
722 * and wlan_remove_card() called, then device can handle FW download
723 * again.
724 */
725 if (priv)
726 reset_device(priv);
727
728 return ret;
729 }
730
731
732 /**
733 * @brief This function register usb device and initialize parameter
734 * @param priv pointer to wlan_private
735 * @return 0 or -1
736 */
737 int libertas_sbi_register_dev(wlan_private * priv)
738 {
739
740 struct usb_card_rec *cardp = (struct usb_card_rec *)priv->wlan_dev.card;
741 ENTER();
742
743 cardp->priv = priv;
744 cardp->eth_dev = priv->wlan_dev.netdev;
745 priv->hotplug_device = &(cardp->udev->dev);
746
747 SET_NETDEV_DEV(cardp->eth_dev, &(cardp->udev->dev));
748
749 lbs_dev_dbg(1, &cardp->udev->dev, "udev pointer is at %p\n",
750 cardp->udev);
751
752 LEAVE();
753 return 0;
754 }
755
756
757
758 int libertas_sbi_prog_firmware(wlan_private * priv)
759 {
760 struct usb_card_rec *cardp = priv->wlan_dev.card;
761 int i = 0;
762 static int reset_count = 10;
763
764 ENTER();
765
766 cardp->rinfo.priv = priv;
767
768 restart:
769 if (if_usb_submit_rx_urb_fwload(priv) < 0) {
770 lbs_dev_dbg(1, &cardp->udev->dev, "URB submission is failed\n");
771 LEAVE();
772 return -1;
773 }
774
775 cardp->bootcmdresp = 0;
776 do {
777 int j = 0;
778 i++;
779 /* Issue Boot command = 1, Boot from Download-FW */
780 if_usb_issue_boot_command(priv, BOOT_CMD_FW_BY_USB);
781 /* wait for command response */
782 do {
783 j++;
784 msleep_interruptible(100);
785 } while (cardp->bootcmdresp == 0 && j < 10);
786 } while (cardp->bootcmdresp == 0 && i < 5);
787
788 if (cardp->bootcmdresp == 0) {
789 if (--reset_count >= 0) {
790 libertas_do_reset(priv);
791 goto restart;
792 }
793 return -1;
794 }
795
796 i = 0;
797 priv->adapter->fw_ready = 0;
798
799 cardp->totalbytes = 0;
800 cardp->fwlastblksent = 0;
801 cardp->CRC_OK = 1;
802 cardp->fwdnldover = 0;
803 cardp->fwseqnum = -1;
804 cardp->totalbytes = 0;
805 cardp->fwfinalblk = 0;
806
807 if_prog_firmware(priv);
808
809 do {
810 lbs_dev_dbg(1, &cardp->udev->dev,"Wlan sched timeout\n");
811 i++;
812 msleep_interruptible(100);
813 if (priv->adapter->surpriseremoved || i >= 20)
814 break;
815 } while (!cardp->fwdnldover);
816
817 if (!cardp->fwdnldover) {
818 lbs_pr_info("failed to load fw, resetting device!\n");
819 if (--reset_count >= 0) {
820 libertas_do_reset(priv);
821 goto restart;
822 }
823
824 lbs_pr_info("FW download failure, time = %d ms\n", i * 100);
825 LEAVE();
826 return -1;
827 }
828
829 if_usb_submit_rx_urb(priv);
830
831 /* Delay 200 ms to waiting for the FW ready */
832 msleep_interruptible(200);
833
834 priv->adapter->fw_ready = 1;
835
836 LEAVE();
837 return 0;
838 }
839
840 /**
841 * @brief Given a usb_card_rec return its wlan_private
842 * @param card pointer to a usb_card_rec
843 * @return pointer to wlan_private
844 */
845 wlan_private *libertas_sbi_get_priv(void *card)
846 {
847 struct usb_card_rec *cardp = card;
848 return cardp->priv;
849 }
850
851 #ifdef CONFIG_PM
852 static int if_usb_suspend(struct usb_interface *intf, pm_message_t message)
853 {
854 struct usb_card_rec *cardp = usb_get_intfdata(intf);
855 wlan_private *priv = cardp->priv;
856
857 ENTER();
858
859 if (priv->adapter->psstate != PS_STATE_FULL_POWER)
860 return -1;
861
862 netif_device_detach(cardp->eth_dev);
863
864 /* Unlink tx & rx urb */
865 usb_kill_urb(cardp->tx_urb);
866 usb_kill_urb(cardp->rx_urb);
867
868 cardp->rx_urb_recall = 1;
869
870 LEAVE();
871 return 0;
872 }
873
874 static int if_usb_resume(struct usb_interface *intf)
875 {
876 struct usb_card_rec *cardp = usb_get_intfdata(intf);
877
878 ENTER();
879
880 cardp->rx_urb_recall = 0;
881
882 if_usb_submit_rx_urb(cardp->priv);
883
884 netif_device_attach(cardp->eth_dev);
885
886 LEAVE();
887 return 0;
888 }
889 #else
890 #define if_usb_suspend NULL
891 #define if_usb_resume NULL
892 #endif
893
894 static struct usb_driver if_usb_driver = {
895 /* driver name */
896 .name = usbdriver_name,
897 /* probe function name */
898 .probe = if_usb_probe,
899 /* disconnect function name */
900 .disconnect = if_usb_disconnect,
901 /* device signature table */
902 .id_table = if_usb_table,
903 .suspend = if_usb_suspend,
904 .resume = if_usb_resume,
905 };
906
907 /**
908 * @brief This function registers driver.
909 * @param add pointer to add_card callback function
910 * @param remove pointer to remove card callback function
911 * @param arg pointer to call back function parameter
912 * @return dummy success variable
913 */
914 int libertas_sbi_register(void)
915 {
916 /*
917 * API registers the Marvell USB driver
918 * to the USB system
919 */
920 usb_register(&if_usb_driver);
921
922 /* Return success to wlan layer */
923 return 0;
924 }
925
926 /**
927 * @brief This function removes usb driver.
928 * @return N/A
929 */
930 void libertas_sbi_unregister(void)
931 {
932 /* API unregisters the driver from USB subsystem */
933 usb_deregister(&if_usb_driver);
934 return;
935 }
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree