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[PATCH] libertas: remove unused/superfluous definitions of DEV_NAME_LEN
[linux-2.6-block.git] / drivers / net / wireless / libertas / if_usb.c
CommitLineData
876c9d3a
MT		 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
18static const char usbdriver_name[] = "usb8xxx";
19
20static struct usb_device_id if_usb_table[] = {
21 /* Enter the device signature inside */
22 {
23 USB_DEVICE(USB8388_VID_1, USB8388_PID_1),
24 },
25 {
26 USB_DEVICE(USB8388_VID_2, USB8388_PID_2),
27 },
28 {} /* Terminating entry */
29};
30
31MODULE_DEVICE_TABLE(usb, if_usb_table);
32
33static void if_usb_receive(struct urb *urb);
34static void if_usb_receive_fwload(struct urb *urb);
35
36/**
37 * @brief call back function to handle the status of the URB
38 * @param urb pointer to urb structure
39 * @return N/A
40 */
41static void if_usb_write_bulk_callback(struct urb *urb)
42{
43 wlan_private *priv = (wlan_private *) (urb->context);
44 wlan_adapter *adapter = priv->adapter;
45 struct net_device *dev = priv->wlan_dev.netdev;
46
47 /* handle the transmission complete validations */
48
49 if (urb->status != 0) {
50 /* print the failure status number for debug */
51 lbs_pr_info("URB in failure status\n");
52 } else {
53 lbs_dev_dbg(2, &urb->dev->dev, "URB status is successfull\n");
54 lbs_dev_dbg(2, &urb->dev->dev, "Actual length transmitted %d\n",
55 urb->actual_length);
56 priv->wlan_dev.dnld_sent = DNLD_RES_RECEIVED;
57 /* Wake main thread if commands are pending */
58 if (!adapter->cur_cmd)
59 wake_up_interruptible(&priv->mainthread.waitq);
60 if ((adapter->connect_status == libertas_connected))
61 netif_wake_queue(dev);
62 }
63
64 return;
65}
66
67/**
68 * @brief free tx/rx urb, skb and rx buffer
69 * @param cardp pointer usb_card_rec
70 * @return N/A
71 */
72void if_usb_free(struct usb_card_rec *cardp)
73{
74 ENTER();
75
76 /* Unlink tx & rx urb */
77 usb_kill_urb(cardp->tx_urb);
78 usb_kill_urb(cardp->rx_urb);
79
80 usb_free_urb(cardp->tx_urb);
81 cardp->tx_urb = NULL;
82
83 usb_free_urb(cardp->rx_urb);
84 cardp->rx_urb = NULL;
85
86 kfree(cardp->bulk_out_buffer);
87 cardp->bulk_out_buffer = NULL;
88
89 LEAVE();
90 return;
91}
92
93/**
94 * @brief sets the configuration values
95 * @param ifnum interface number
96 * @param id pointer to usb_device_id
97 * @return 0 on success, error code on failure
98 */
99static int if_usb_probe(struct usb_interface *intf,
100 const struct usb_device_id *id)
101{
102 struct usb_device *udev;
103 struct usb_host_interface *iface_desc;
104 struct usb_endpoint_descriptor *endpoint;
105 wlan_private *pwlanpriv;
106 struct usb_card_rec *usb_cardp;
107 int i;
108
109 udev = interface_to_usbdev(intf);
110
111 usb_cardp = kzalloc(sizeof(struct usb_card_rec), GFP_KERNEL);
112 if (!usb_cardp) {
113 lbs_pr_err("Out of memory allocating private data.\n");
114 goto error;
115 }
116
117 usb_cardp->udev = udev;
118 iface_desc = intf->cur_altsetting;
119
120 lbs_dev_dbg(1, &udev->dev, "bcdUSB = 0x%X bDeviceClass = 0x%X"
121 " bDeviceSubClass = 0x%X, bDeviceProtocol = 0x%X\n",
122 udev->descriptor.bcdUSB,
123 udev->descriptor.bDeviceClass,
124 udev->descriptor.bDeviceSubClass,
125 udev->descriptor.bDeviceProtocol);
126
127 for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) {
128 endpoint = &iface_desc->endpoint[i].desc;
129 if ((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
130 && ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
131 USB_ENDPOINT_XFER_BULK)) {
132 /* we found a bulk in endpoint */
133 lbs_dev_dbg(1, &udev->dev, "Bulk in size is %d\n",
134 endpoint->wMaxPacketSize);
135 if (!
136 (usb_cardp->rx_urb =
137 usb_alloc_urb(0, GFP_KERNEL))) {
138 lbs_dev_dbg(1, &udev->dev,
139 "Rx URB allocation failed\n");
140 goto dealloc;
141 }
142 usb_cardp->rx_urb_recall = 0;
143
144 usb_cardp->bulk_in_size =
145 endpoint->wMaxPacketSize;
146 usb_cardp->bulk_in_endpointAddr =
147 (endpoint->
148 bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
149 lbs_dev_dbg(1, &udev->dev, "in_endpoint = %d\n",
150 endpoint->bEndpointAddress);
151 }
152
153 if (((endpoint->
154 bEndpointAddress & USB_ENDPOINT_DIR_MASK) ==
155 USB_DIR_OUT)
156 && ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
157 USB_ENDPOINT_XFER_BULK)) {
158 /* We found bulk out endpoint */
159 if (!
160 (usb_cardp->tx_urb =
161 usb_alloc_urb(0, GFP_KERNEL))) {
162 lbs_dev_dbg(1,&udev->dev,
163 "Tx URB allocation failed\n");
164 goto dealloc;
165 }
166
167 usb_cardp->bulk_out_size =
168 endpoint->wMaxPacketSize;
169 lbs_dev_dbg(1, &udev->dev,
170 "Bulk out size is %d\n",
171 endpoint->wMaxPacketSize);
172 usb_cardp->bulk_out_endpointAddr =
173 endpoint->bEndpointAddress;
174 lbs_dev_dbg(1, &udev->dev, "out_endpoint = %d\n",
175 endpoint->bEndpointAddress);
176 usb_cardp->bulk_out_buffer =
177 kmalloc(MRVDRV_ETH_TX_PACKET_BUFFER_SIZE,
178 GFP_KERNEL);
179
180 if (!usb_cardp->bulk_out_buffer) {
181 lbs_dev_dbg(1, &udev->dev,
182 "Could not allocate buffer\n");
183 goto dealloc;
184 }
185 }
186 }
187
188
189 /* At this point wlan_add_card() will be called. Don't worry
190 * about keeping pwlanpriv around since it will be set on our
191 * usb device data in -> add() -> libertas_sbi_register_dev().
192 */
193 if (!(pwlanpriv = wlan_add_card(usb_cardp)))
194 goto dealloc;
195
196 usb_get_dev(udev);
197 usb_set_intfdata(intf, usb_cardp);
198
199 /*
200 * return card structure, which can be got back in the
201 * diconnect function as the ptr
202 * argument.
203 */
204 return 0;
205
206dealloc:
207 if_usb_free(usb_cardp);
208
209error:
210 return -ENOMEM;
211}
212
213/**
214 * @brief free resource and cleanup
215 * @param udev pointer to usb_device
216 * @param ptr pointer to usb_cardp
217 * @return N/A
218 */
219static void if_usb_disconnect(struct usb_interface *intf)
220{
221 struct usb_card_rec *cardp = usb_get_intfdata(intf);
222 wlan_private *priv = (wlan_private *) cardp->priv;
223 wlan_adapter *adapter = NULL;
224
225 adapter = priv->adapter;
226
227 /*
228 * Update Surprise removed to TRUE
229 */
230 adapter->surpriseremoved = 1;
231
232 /* card is removed and we can call wlan_remove_card */
233 lbs_dev_dbg(1, &cardp->udev->dev, "call remove card\n");
234 wlan_remove_card(cardp);
235
236 /* Unlink and free urb */
237 if_usb_free(cardp);
238
239 usb_set_intfdata(intf, NULL);
240 usb_put_dev(interface_to_usbdev(intf));
241
242 return;
243}
244
245/**
246 * @brief This function download FW
247 * @param priv pointer to wlan_private
248 * @return 0
249 */
250static int if_prog_firmware(wlan_private * priv)
251{
252 struct usb_card_rec *cardp = priv->wlan_dev.card;
253 struct FWData *fwdata;
254 struct fwheader *fwheader;
255 u8 *firmware = priv->firmware->data;
256
257 fwdata = kmalloc(sizeof(struct FWData), GFP_ATOMIC);
258
259 if (!fwdata)
260 return -1;
261
262 fwheader = &fwdata->fwheader;
263
264 if (!cardp->CRC_OK) {
265 cardp->totalbytes = cardp->fwlastblksent;
266 cardp->fwseqnum = cardp->lastseqnum - 1;
267 }
268
269 lbs_dev_dbg(2, &cardp->udev->dev, "totalbytes = %d\n",
270 cardp->totalbytes);
271
272 memcpy(fwheader, &firmware[cardp->totalbytes],
273 sizeof(struct fwheader));
274
275 cardp->fwlastblksent = cardp->totalbytes;
276 cardp->totalbytes += sizeof(struct fwheader);
277
278 lbs_dev_dbg(2, &cardp->udev->dev,"Copy Data\n");
279 memcpy(fwdata->data, &firmware[cardp->totalbytes],
280 fwdata->fwheader.datalength);
281
282 lbs_dev_dbg(2, &cardp->udev->dev,
283 "Data length = %d\n", fwdata->fwheader.datalength);
284
285 cardp->fwseqnum = cardp->fwseqnum + 1;
286
287 fwdata->seqnum = cardp->fwseqnum;
288 cardp->lastseqnum = fwdata->seqnum;
289 cardp->totalbytes += fwdata->fwheader.datalength;
290
291 if (fwheader->dnldcmd == FW_HAS_DATA_TO_RECV) {
292 lbs_dev_dbg(2, &cardp->udev->dev, "There is data to follow\n");
293 lbs_dev_dbg(2, &cardp->udev->dev,
294 "seqnum = %d totalbytes = %d\n", cardp->fwseqnum,
295 cardp->totalbytes);
296 memcpy(cardp->bulk_out_buffer, fwheader, FW_DATA_XMIT_SIZE);
297 usb_tx_block(priv, cardp->bulk_out_buffer, FW_DATA_XMIT_SIZE);
298
299 } else if (fwdata->fwheader.dnldcmd == FW_HAS_LAST_BLOCK) {
300 lbs_dev_dbg(2, &cardp->udev->dev,
301 "Host has finished FW downloading\n");
302 lbs_dev_dbg(2, &cardp->udev->dev,
303 "Donwloading FW JUMP BLOCK\n");
304 memcpy(cardp->bulk_out_buffer, fwheader, FW_DATA_XMIT_SIZE);
305 usb_tx_block(priv, cardp->bulk_out_buffer, FW_DATA_XMIT_SIZE);
306 cardp->fwfinalblk = 1;
307 }
308
309 lbs_dev_dbg(2, &cardp->udev->dev,
310 "The firmware download is done size is %d\n",
311 cardp->totalbytes);
312
313 kfree(fwdata);
314
315 return 0;
316}
317
318static int libertas_do_reset(wlan_private *priv)
319{
320 int ret;
321 struct usb_card_rec *cardp = priv->wlan_dev.card;
322
323 ret = usb_reset_device(cardp->udev);
324 if (!ret) {
325 msleep(10);
326 reset_device(priv);
327 msleep(10);
328 }
329 return ret;
330}
331
332/**
333 * @brief This function transfer the data to the device.
334 * @param priv pointer to wlan_private
335 * @param payload pointer to payload data
336 * @param nb data length
337 * @return 0 or -1
338 */
339int usb_tx_block(wlan_private * priv, u8 * payload, u16 nb)
340{
341 /* pointer to card structure */
342 struct usb_card_rec *cardp = priv->wlan_dev.card;
343 int ret = -1;
344
345 /* check if device is removed */
346 if (priv->adapter->surpriseremoved) {
347 lbs_dev_dbg(1, &cardp->udev->dev, "Device removed\n");
348 goto tx_ret;
349 }
350
351 usb_fill_bulk_urb(cardp->tx_urb, cardp->udev,
352 usb_sndbulkpipe(cardp->udev,
353 cardp->bulk_out_endpointAddr),
354 payload, nb, if_usb_write_bulk_callback, priv);
355
356 cardp->tx_urb->transfer_flags |= URB_ZERO_PACKET;
357
358 if ((ret = usb_submit_urb(cardp->tx_urb, GFP_ATOMIC))) {
359 /* transfer failed */
360 lbs_dev_dbg(1, &cardp->udev->dev, "usb_submit_urb failed\n");
361 ret = -1;
362 } else {
363 lbs_dev_dbg(2, &cardp->udev->dev, "usb_submit_urb success\n");
364 ret = 0;
365 }
366
367tx_ret:
368 return ret;
369}
370
371static int __if_usb_submit_rx_urb(wlan_private * priv,
372 void (*callbackfn)
373 (struct urb *urb))
374{
375 struct usb_card_rec *cardp = priv->wlan_dev.card;
376 struct sk_buff *skb;
377 struct read_cb_info *rinfo = &cardp->rinfo;
378 int ret = -1;
379
380 if (!(skb = dev_alloc_skb(MRVDRV_ETH_RX_PACKET_BUFFER_SIZE))) {
381 lbs_pr_err("No free skb\n");
382 goto rx_ret;
383 }
384
385 rinfo->skb = skb;
386
387 /* Fill the receive configuration URB and initialise the Rx call back */
388 usb_fill_bulk_urb(cardp->rx_urb, cardp->udev,
389 usb_rcvbulkpipe(cardp->udev,
390 cardp->bulk_in_endpointAddr),
4269e2ad 391 (void *) (skb->tail + (size_t) IPFIELD_ALIGN_OFFSET),
876c9d3a
MT		 392 MRVDRV_ETH_RX_PACKET_BUFFER_SIZE, callbackfn,
393 rinfo);
394
395 cardp->rx_urb->transfer_flags |= URB_ZERO_PACKET;
396
397 lbs_dev_dbg(2, &cardp->udev->dev, "Pointer for rx_urb %p\n", cardp->rx_urb);
398 if ((ret = usb_submit_urb(cardp->rx_urb, GFP_ATOMIC))) {
399 /* handle failure conditions */
400 lbs_dev_dbg(1, &cardp->udev->dev, "Submit Rx URB failed\n");
401 ret = -1;
402 } else {
403 lbs_dev_dbg(2, &cardp->udev->dev, "Submit Rx URB success\n");
404 ret = 0;
405 }
406
407rx_ret:
408 return ret;
409}
410
411static inline int if_usb_submit_rx_urb_fwload(wlan_private * priv)
412{
413 return __if_usb_submit_rx_urb(priv, &if_usb_receive_fwload);
414}
415
416static inline int if_usb_submit_rx_urb(wlan_private * priv)
417{
418 return __if_usb_submit_rx_urb(priv, &if_usb_receive);
419}
420
421static void if_usb_receive_fwload(struct urb *urb)
422{
423 struct read_cb_info *rinfo = (struct read_cb_info *)urb->context;
424 wlan_private *priv = rinfo->priv;
425 struct sk_buff *skb = rinfo->skb;
426 struct usb_card_rec *cardp = (struct usb_card_rec *)priv->wlan_dev.card;
427 struct fwsyncheader *syncfwheader;
428 struct bootcmdrespStr bootcmdresp;
429
430 if (urb->status) {
431 lbs_dev_dbg(1, &cardp->udev->dev,
432 "URB status is failed during fw load\n");
433 kfree_skb(skb);
434 return;
435 }
436
437 if (cardp->bootcmdresp == 0) {
438 memcpy (&bootcmdresp, skb->data + IPFIELD_ALIGN_OFFSET,
439 sizeof(bootcmdresp));
440 if (cardp->udev->descriptor.bcdDevice < 0x3106) {
441 kfree_skb(skb);
442 if_usb_submit_rx_urb_fwload(priv);
443 cardp->bootcmdresp = 1;
444 lbs_dev_dbg(1, &cardp->udev->dev,
445 "Received valid boot command response\n");
446 return;
447 }
448 if (bootcmdresp.u32magicnumber != BOOT_CMD_MAGIC_NUMBER) {
449 lbs_pr_info(
450 "boot cmd response wrong magic number (0x%x)\n",
451 bootcmdresp.u32magicnumber);
452 } else if (bootcmdresp.u8cmd_tag != BOOT_CMD_FW_BY_USB) {
453 lbs_pr_info(
454 "boot cmd response cmd_tag error (%d)\n",
455 bootcmdresp.u8cmd_tag);
456 } else if (bootcmdresp.u8result != BOOT_CMD_RESP_OK) {
457 lbs_pr_info(
458 "boot cmd response result error (%d)\n",
459 bootcmdresp.u8result);
460 } else {
461 cardp->bootcmdresp = 1;
462 lbs_dev_dbg(1, &cardp->udev->dev,
463 "Received valid boot command response\n");
464 }
465 kfree_skb(skb);
466 if_usb_submit_rx_urb_fwload(priv);
467 return;
468 }
469
470 syncfwheader = kmalloc(sizeof(struct fwsyncheader), GFP_ATOMIC);
471 if (!syncfwheader) {
472 lbs_dev_dbg(1, &cardp->udev->dev, "Failure to allocate syncfwheader\n");
473 kfree_skb(skb);
474 return;
475 }
476
477 memcpy(syncfwheader, skb->data + IPFIELD_ALIGN_OFFSET,
478 sizeof(struct fwsyncheader));
479
480 if (!syncfwheader->cmd) {
481 lbs_dev_dbg(2, &cardp->udev->dev,
482 "FW received Blk with correct CRC\n");
483 lbs_dev_dbg(2, &cardp->udev->dev,
484 "FW received Blk seqnum = %d\n",
485 syncfwheader->seqnum);
486 cardp->CRC_OK = 1;
487 } else {
488 lbs_dev_dbg(1, &cardp->udev->dev,
489 "FW received Blk with CRC error\n");
490 cardp->CRC_OK = 0;
491 }
492
493 kfree_skb(skb);
494
495 if (cardp->fwfinalblk) {
496 cardp->fwdnldover = 1;
497 goto exit;
498 }
499
500 if_prog_firmware(priv);
501
502 if_usb_submit_rx_urb_fwload(priv);
503exit:
504 kfree(syncfwheader);
505
506 return;
507
508}
509
510#define MRVDRV_MIN_PKT_LEN 30
511
512static inline void process_cmdtypedata(int recvlength, struct sk_buff *skb,
513 struct usb_card_rec *cardp,
514 wlan_private *priv)
515{
516 if (recvlength > MRVDRV_ETH_RX_PACKET_BUFFER_SIZE +
517 MESSAGE_HEADER_LEN || recvlength < MRVDRV_MIN_PKT_LEN) {
518 lbs_dev_dbg(1, &cardp->udev->dev,
519 "Packet length is Invalid\n");
520 kfree_skb(skb);
521 return;
522 }
523
524 skb_reserve(skb, IPFIELD_ALIGN_OFFSET);
525 skb_put(skb, recvlength);
526 skb_pull(skb, MESSAGE_HEADER_LEN);
527 libertas_process_rxed_packet(priv, skb);
528 priv->wlan_dev.upld_len = (recvlength - MESSAGE_HEADER_LEN);
529}
530
531static inline void process_cmdrequest(int recvlength, u8 *recvbuff,
532 struct sk_buff *skb,
533 struct usb_card_rec *cardp,
534 wlan_private *priv)
535{
536 u8 *cmdbuf;
537 if (recvlength > MRVDRV_SIZE_OF_CMD_BUFFER) {
538 lbs_dev_dbg(1, &cardp->udev->dev,
539 "The receive buffer is too large\n");
540 kfree_skb(skb);
541 return;
542 }
543
544 if (!in_interrupt())
545 BUG();
546
547 spin_lock(&priv->adapter->driver_lock);
548 /* take care of cur_cmd = NULL case by reading the
549 * data to clear the interrupt */
550 if (!priv->adapter->cur_cmd) {
551 cmdbuf = priv->wlan_dev.upld_buf;
552 priv->adapter->hisregcpy &= ~his_cmdupldrdy;
553 } else
554 cmdbuf = priv->adapter->cur_cmd->bufvirtualaddr;
555
556 cardp->usb_int_cause |= his_cmdupldrdy;
557 priv->wlan_dev.upld_len = (recvlength - MESSAGE_HEADER_LEN);
558 memcpy(cmdbuf, recvbuff + MESSAGE_HEADER_LEN,
559 priv->wlan_dev.upld_len);
560
561 kfree_skb(skb);
562 libertas_interrupt(priv->wlan_dev.netdev);
563 spin_unlock(&priv->adapter->driver_lock);
564
565 lbs_dev_dbg(1, &cardp->udev->dev,
566 "Wake up main thread to handle cmd response\n");
567
568 return;
569}
570
571/**
572 * @brief This function reads of the packet into the upload buff,
573 * wake up the main thread and initialise the Rx callack.
574 *
575 * @param urb pointer to struct urb
576 * @return N/A
577 */
578static void if_usb_receive(struct urb *urb)
579{
580 struct read_cb_info *rinfo = (struct read_cb_info *)urb->context;
581 wlan_private *priv = rinfo->priv;
582 struct sk_buff *skb = rinfo->skb;
583 struct usb_card_rec *cardp = (struct usb_card_rec *)priv->wlan_dev.card;
584
585 int recvlength = urb->actual_length;
586 u8 *recvbuff = NULL;
587 u32 recvtype;
588
589 ENTER();
590
591 if (recvlength) {
592 if (urb->status) {
593 lbs_dev_dbg(1, &cardp->udev->dev,
594 "URB status is failed\n");
595 kfree_skb(skb);
596 goto setup_for_next;
597 }
598
599 recvbuff = skb->data + IPFIELD_ALIGN_OFFSET;
600 memcpy(&recvtype, recvbuff, sizeof(u32));
601 lbs_dev_dbg(1, &cardp->udev->dev,
602 "Recv length = 0x%x\n", recvlength);
603 lbs_dev_dbg(1, &cardp->udev->dev,
604 "Receive type = 0x%X\n", recvtype);
605 recvtype = le32_to_cpu(recvtype);
606 lbs_dev_dbg(1, &cardp->udev->dev,
607 "Receive type after = 0x%X\n", recvtype);
608 } else if (urb->status)
609 goto rx_exit;
610
611
612 switch (recvtype) {
613 case CMD_TYPE_DATA:
614 process_cmdtypedata(recvlength, skb, cardp, priv);
615 break;
616
617 case CMD_TYPE_REQUEST:
618 process_cmdrequest(recvlength, recvbuff, skb, cardp, priv);
619 break;
620
621 case CMD_TYPE_INDICATION:
622 /* Event cause handling */
623 spin_lock(&priv->adapter->driver_lock);
624 cardp->usb_event_cause = *(u32 *) (recvbuff + MESSAGE_HEADER_LEN);
625 lbs_dev_dbg(1, &cardp->udev->dev,"**EVENT** 0x%X\n",
626 cardp->usb_event_cause);
627 if (cardp->usb_event_cause & 0xffff0000) {
628 libertas_send_tx_feedback(priv);
12a4d265 629 spin_unlock(&priv->adapter->driver_lock);
876c9d3a
MT		 630 break;
631 }
632 cardp->usb_event_cause = le32_to_cpu(cardp->usb_event_cause) << 3;
633 cardp->usb_int_cause |= his_cardevent;
634 kfree_skb(skb);
635 libertas_interrupt(priv->wlan_dev.netdev);
636 spin_unlock(&priv->adapter->driver_lock);
637 goto rx_exit;
638 default:
639 kfree_skb(skb);
640 break;
641 }
642
643setup_for_next:
644 if_usb_submit_rx_urb(priv);
645rx_exit:
646 LEAVE();
647 return;
648}
649
650/**
651 * @brief This function downloads data to FW
652 * @param priv pointer to wlan_private structure
653 * @param type type of data
654 * @param buf pointer to data buffer
655 * @param len number of bytes
656 * @return 0 or -1
657 */
658int libertas_sbi_host_to_card(wlan_private * priv, u8 type, u8 * payload, u16 nb)
659{
660 int ret = -1;
661 u32 tmp;
662 struct usb_card_rec *cardp = (struct usb_card_rec *)priv->wlan_dev.card;
663
664 lbs_dev_dbg(1, &cardp->udev->dev,"*** type = %u\n", type);
665 lbs_dev_dbg(1, &cardp->udev->dev,"size after = %d\n", nb);
666
667 if (type == MVMS_CMD) {
668 tmp = cpu_to_le32(CMD_TYPE_REQUEST);
669 priv->wlan_dev.dnld_sent = DNLD_CMD_SENT;
670 memcpy(cardp->bulk_out_buffer, (u8 *) & tmp,
671 MESSAGE_HEADER_LEN);
672
673 } else {
674 tmp = cpu_to_le32(CMD_TYPE_DATA);
675 priv->wlan_dev.dnld_sent = DNLD_DATA_SENT;
676 memcpy(cardp->bulk_out_buffer, (u8 *) & tmp,
677 MESSAGE_HEADER_LEN);
678 }
679
680 memcpy((cardp->bulk_out_buffer + MESSAGE_HEADER_LEN), payload, nb);
681
682 ret =
683 usb_tx_block(priv, cardp->bulk_out_buffer, nb + MESSAGE_HEADER_LEN);
684
685 return ret;
686}
687
688/* called with adapter->driver_lock held */
689int libertas_sbi_get_int_status(wlan_private * priv, u8 * ireg)
690{
691 struct usb_card_rec *cardp = priv->wlan_dev.card;
692
693 *ireg = cardp->usb_int_cause;
694 cardp->usb_int_cause = 0;
695
696 lbs_dev_dbg(1, &cardp->udev->dev,"Int cause is 0x%X\n", *ireg);
697
698 return 0;
699}
700
701int libertas_sbi_read_event_cause(wlan_private * priv)
702{
703 struct usb_card_rec *cardp = priv->wlan_dev.card;
704 priv->adapter->eventcause = cardp->usb_event_cause;
705 /* Re-submit rx urb here to avoid event lost issue */
706 if_usb_submit_rx_urb(priv);
707 return 0;
708}
709
710int reset_device(wlan_private *priv)
711{
712 int ret;
713
714 ret = libertas_prepare_and_send_command(priv, cmd_802_11_reset,
715 cmd_act_halt, 0, 0, NULL);
716 msleep_interruptible(10);
717
718 return ret;
719}
720
721int libertas_sbi_unregister_dev(wlan_private * priv)
722{
723 int ret = 0;
724
725 /* Need to send a Reset command to device before USB resources freed
726 * and wlan_remove_card() called, then device can handle FW download
727 * again.
728 */
729 if (priv)
730 reset_device(priv);
731
732 return ret;
733}
734
735
736/**
737 * @brief This function register usb device and initialize parameter
738 * @param priv pointer to wlan_private
739 * @return 0 or -1
740 */
741int libertas_sbi_register_dev(wlan_private * priv)
742{
743
744 struct usb_card_rec *cardp = (struct usb_card_rec *)priv->wlan_dev.card;
745 ENTER();
746
747 cardp->priv = priv;
748 cardp->eth_dev = priv->wlan_dev.netdev;
749 priv->hotplug_device = &(cardp->udev->dev);
750
751 SET_NETDEV_DEV(cardp->eth_dev, &(cardp->udev->dev));
752
753 lbs_dev_dbg(1, &cardp->udev->dev, "udev pointer is at %p\n",
754 cardp->udev);
755
756 LEAVE();
757 return 0;
758}
759
760
761
762int libertas_sbi_prog_firmware(wlan_private * priv)
763{
764 struct usb_card_rec *cardp = priv->wlan_dev.card;
765 int i = 0;
766 static int reset_count = 10;
767
768 ENTER();
769
770 cardp->rinfo.priv = priv;
771
772restart:
773 if (if_usb_submit_rx_urb_fwload(priv) < 0) {
774 lbs_dev_dbg(1, &cardp->udev->dev, "URB submission is failed\n");
775 LEAVE();
776 return -1;
777 }
778
876c9d3a
MT		 779 cardp->bootcmdresp = 0;
780 do {
781 int j = 0;
782 i++;
783 /* Issue Boot command = 1, Boot from Download-FW */
784 if_usb_issue_boot_command(priv, BOOT_CMD_FW_BY_USB);
785 /* wait for command response */
786 do {
787 j++;
788 msleep_interruptible(100);
789 } while (cardp->bootcmdresp == 0 && j < 10);
790 } while (cardp->bootcmdresp == 0 && i < 5);
791
792 if (cardp->bootcmdresp == 0) {
793 if (--reset_count >= 0) {
794 libertas_do_reset(priv);
795 goto restart;
796 }
797 return -1;
798 }
876c9d3a
MT		 799
800 i = 0;
801 priv->adapter->fw_ready = 0;
802
803 cardp->totalbytes = 0;
804 cardp->fwlastblksent = 0;
805 cardp->CRC_OK = 1;
806 cardp->fwdnldover = 0;
807 cardp->fwseqnum = -1;
808 cardp->totalbytes = 0;
809 cardp->fwfinalblk = 0;
810
811 if_prog_firmware(priv);
812
813 do {
814 lbs_dev_dbg(1, &cardp->udev->dev,"Wlan sched timeout\n");
815 i++;
816 msleep_interruptible(100);
817 if (priv->adapter->surpriseremoved || i >= 20)
818 break;
819 } while (!cardp->fwdnldover);
820
821 if (!cardp->fwdnldover) {
822 lbs_pr_info("failed to load fw, resetting device!\n");
823 if (--reset_count >= 0) {
824 libertas_do_reset(priv);
825 goto restart;
826 }
827
828 lbs_pr_info("FW download failure, time = %d ms\n", i * 100);
829 LEAVE();
830 return -1;
831 }
832
833 if_usb_submit_rx_urb(priv);
834
835 /* Delay 200 ms to waiting for the FW ready */
836 msleep_interruptible(200);
837
838 priv->adapter->fw_ready = 1;
839
840 LEAVE();
841 return 0;
842}
843
844/**
845 * @brief Given a usb_card_rec return its wlan_private
846 * @param card pointer to a usb_card_rec
847 * @return pointer to wlan_private
848 */
849wlan_private *libertas_sbi_get_priv(void *card)
850{
851 struct usb_card_rec *cardp = card;
852 return cardp->priv;
853}
854
876c9d3a
MT		 855#ifdef CONFIG_PM
856static int if_usb_suspend(struct usb_interface *intf, pm_message_t message)
857{
858 struct usb_card_rec *cardp = usb_get_intfdata(intf);
859 wlan_private *priv = cardp->priv;
860
861 ENTER();
862
863 if (priv->adapter->psstate != PS_STATE_FULL_POWER)
864 return -1;
865
866 netif_device_detach(cardp->eth_dev);
867
868 /* Unlink tx & rx urb */
869 usb_kill_urb(cardp->tx_urb);
870 usb_kill_urb(cardp->rx_urb);
871
872 cardp->rx_urb_recall = 1;
873
874 LEAVE();
875 return 0;
876}
877
878static int if_usb_resume(struct usb_interface *intf)
879{
880 struct usb_card_rec *cardp = usb_get_intfdata(intf);
881
882 ENTER();
883
884 cardp->rx_urb_recall = 0;
885
886 if_usb_submit_rx_urb(cardp->priv);
887
888 netif_device_attach(cardp->eth_dev);
889
890 LEAVE();
891 return 0;
892}
893#else
894#define if_usb_suspend NULL
895#define if_usb_resume NULL
896#endif
897
898static struct usb_driver if_usb_driver = {
899 /* driver name */
900 .name = usbdriver_name,
901 /* probe function name */
902 .probe = if_usb_probe,
903 /* disconnect function name */
904 .disconnect = if_usb_disconnect,
905 /* device signature table */
906 .id_table = if_usb_table,
907 .suspend = if_usb_suspend,
908 .resume = if_usb_resume,
909};
910
911/**
912 * @brief This function registers driver.
913 * @param add pointer to add_card callback function
914 * @param remove pointer to remove card callback function
915 * @param arg pointer to call back function parameter
916 * @return dummy success variable
917 */
918int libertas_sbi_register(void)
919{
920 /*
921 * API registers the Marvell USB driver
922 * to the USB system
923 */
924 usb_register(&if_usb_driver);
925
926 /* Return success to wlan layer */
927 return 0;
928}
929
930/**
931 * @brief This function removes usb driver.
932 * @return N/A
933 */
934void libertas_sbi_unregister(void)
935{
936 /* API unregisters the driver from USB subsystem */
937 usb_deregister(&if_usb_driver);
938 return;
939}
Linux 6.x block layer and io_uring tree(s)