1
2
3
4
5
6#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
7
8#include <linux/delay.h>
9#include <linux/module.h>
10#include <linux/firmware.h>
11#include <linux/netdevice.h>
12#include <linux/slab.h>
13#include <linux/usb.h>
14#include <linux/olpc-ec.h>
15
16#ifdef CONFIG_OLPC
17#include <asm/olpc.h>
18#endif
19
20#define DRV_NAME "usb8xxx"
21
22#include "host.h"
23#include "decl.h"
24#include "defs.h"
25#include "dev.h"
26#include "cmd.h"
27#include "if_usb.h"
28
29#define INSANEDEBUG 0
30#define lbs_deb_usb2(...) do { if (INSANEDEBUG) lbs_deb_usbd(__VA_ARGS__); } while (0)
31
32#define MESSAGE_HEADER_LEN 4
33
34MODULE_FIRMWARE("libertas/usb8388_v9.bin");
35MODULE_FIRMWARE("libertas/usb8388_v5.bin");
36MODULE_FIRMWARE("libertas/usb8388.bin");
37MODULE_FIRMWARE("libertas/usb8682.bin");
38MODULE_FIRMWARE("usb8388.bin");
39
40enum {
41 MODEL_UNKNOWN = 0x0,
42 MODEL_8388 = 0x1,
43 MODEL_8682 = 0x2
44};
45
46
47static const struct lbs_fw_table fw_table[] = {
48 { MODEL_8388, "libertas/usb8388_olpc.bin", NULL },
49 { MODEL_8388, "libertas/usb8388_v9.bin", NULL },
50 { MODEL_8388, "libertas/usb8388_v5.bin", NULL },
51 { MODEL_8388, "libertas/usb8388.bin", NULL },
52 { MODEL_8388, "usb8388.bin", NULL },
53 { MODEL_8682, "libertas/usb8682.bin", NULL },
54 { 0, NULL, NULL }
55};
56
57static const struct usb_device_id if_usb_table[] = {
58
59 { USB_DEVICE(0x1286, 0x2001), .driver_info = MODEL_8388 },
60 { USB_DEVICE(0x05a3, 0x8388), .driver_info = MODEL_8388 },
61 {}
62};
63
64MODULE_DEVICE_TABLE(usb, if_usb_table);
65
66static void if_usb_receive(struct urb *urb);
67static void if_usb_receive_fwload(struct urb *urb);
68static void if_usb_prog_firmware(struct lbs_private *priv, int ret,
69 const struct firmware *fw,
70 const struct firmware *unused);
71static int if_usb_host_to_card(struct lbs_private *priv, uint8_t type,
72 uint8_t *payload, uint16_t nb);
73static int usb_tx_block(struct if_usb_card *cardp, uint8_t *payload,
74 uint16_t nb);
75static void if_usb_free(struct if_usb_card *cardp);
76static int if_usb_submit_rx_urb(struct if_usb_card *cardp);
77static int if_usb_reset_device(struct if_usb_card *cardp);
78
79
80
81
82
83
84
85static void if_usb_write_bulk_callback(struct urb *urb)
86{
87 struct if_usb_card *cardp = (struct if_usb_card *) urb->context;
88
89
90
91 if (urb->status == 0) {
92 struct lbs_private *priv = cardp->priv;
93
94 lbs_deb_usb2(&urb->dev->dev, "URB status is successful\n");
95 lbs_deb_usb2(&urb->dev->dev, "Actual length transmitted %d\n",
96 urb->actual_length);
97
98
99
100
101 if (priv && priv->dnld_sent != DNLD_BOOTCMD_SENT)
102 lbs_host_to_card_done(priv);
103 } else {
104
105 pr_info("URB in failure status: %d\n", urb->status);
106 }
107}
108
109
110
111
112
113
114static void if_usb_free(struct if_usb_card *cardp)
115{
116
117 usb_kill_urb(cardp->tx_urb);
118 usb_kill_urb(cardp->rx_urb);
119
120 usb_free_urb(cardp->tx_urb);
121 cardp->tx_urb = NULL;
122
123 usb_free_urb(cardp->rx_urb);
124 cardp->rx_urb = NULL;
125
126 kfree(cardp->ep_out_buf);
127 cardp->ep_out_buf = NULL;
128}
129
130static void if_usb_setup_firmware(struct lbs_private *priv)
131{
132 struct if_usb_card *cardp = priv->card;
133 struct cmd_ds_set_boot2_ver b2_cmd;
134 struct cmd_ds_802_11_fw_wake_method wake_method;
135
136 b2_cmd.hdr.size = cpu_to_le16(sizeof(b2_cmd));
137 b2_cmd.action = 0;
138 b2_cmd.version = cardp->boot2_version;
139
140 if (lbs_cmd_with_response(priv, CMD_SET_BOOT2_VER, &b2_cmd))
141 lbs_deb_usb("Setting boot2 version failed\n");
142
143 priv->wol_gpio = 2;
144 priv->wol_gap = 20;
145 lbs_host_sleep_cfg(priv, EHS_WAKE_ON_UNICAST_DATA,
146 (struct wol_config *) NULL);
147
148 wake_method.hdr.size = cpu_to_le16(sizeof(wake_method));
149 wake_method.action = cpu_to_le16(CMD_ACT_GET);
150 if (lbs_cmd_with_response(priv, CMD_802_11_FW_WAKE_METHOD, &wake_method)) {
151 netdev_info(priv->dev, "Firmware does not seem to support PS mode\n");
152 priv->fwcapinfo &= ~FW_CAPINFO_PS;
153 } else {
154 if (le16_to_cpu(wake_method.method) == CMD_WAKE_METHOD_COMMAND_INT) {
155 lbs_deb_usb("Firmware seems to support PS with wake-via-command\n");
156 } else {
157
158
159 priv->fwcapinfo &= ~FW_CAPINFO_PS;
160 netdev_info(priv->dev,
161 "Firmware doesn't wake via command interrupt; disabling PS mode\n");
162 }
163 }
164}
165
166static void if_usb_fw_timeo(struct timer_list *t)
167{
168 struct if_usb_card *cardp = from_timer(cardp, t, fw_timeout);
169
170 if (cardp->fwdnldover) {
171 lbs_deb_usb("Download complete, no event. Assuming success\n");
172 } else {
173 pr_err("Download timed out\n");
174 cardp->surprise_removed = 1;
175 }
176 wake_up(&cardp->fw_wq);
177}
178
179#ifdef CONFIG_OLPC
180static void if_usb_reset_olpc_card(struct lbs_private *priv)
181{
182 printk(KERN_CRIT "Resetting OLPC wireless via EC...\n");
183 olpc_ec_cmd(0x25, NULL, 0, NULL, 0);
184}
185#endif
186
187
188
189
190
191
192
193static int if_usb_probe(struct usb_interface *intf,
194 const struct usb_device_id *id)
195{
196 struct usb_device *udev;
197 struct usb_host_interface *iface_desc;
198 struct usb_endpoint_descriptor *endpoint;
199 struct lbs_private *priv;
200 struct if_usb_card *cardp;
201 int r = -ENOMEM;
202 int i;
203
204 udev = interface_to_usbdev(intf);
205
206 cardp = kzalloc(sizeof(struct if_usb_card), GFP_KERNEL);
207 if (!cardp)
208 goto error;
209
210 timer_setup(&cardp->fw_timeout, if_usb_fw_timeo, 0);
211 init_waitqueue_head(&cardp->fw_wq);
212
213 cardp->udev = udev;
214 cardp->model = (uint32_t) id->driver_info;
215 iface_desc = intf->cur_altsetting;
216
217 lbs_deb_usbd(&udev->dev, "bcdUSB = 0x%X bDeviceClass = 0x%X"
218 " bDeviceSubClass = 0x%X, bDeviceProtocol = 0x%X\n",
219 le16_to_cpu(udev->descriptor.bcdUSB),
220 udev->descriptor.bDeviceClass,
221 udev->descriptor.bDeviceSubClass,
222 udev->descriptor.bDeviceProtocol);
223
224 for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) {
225 endpoint = &iface_desc->endpoint[i].desc;
226 if (usb_endpoint_is_bulk_in(endpoint)) {
227 cardp->ep_in_size = le16_to_cpu(endpoint->wMaxPacketSize);
228 cardp->ep_in = usb_endpoint_num(endpoint);
229
230 lbs_deb_usbd(&udev->dev, "in_endpoint = %d\n", cardp->ep_in);
231 lbs_deb_usbd(&udev->dev, "Bulk in size is %d\n", cardp->ep_in_size);
232
233 } else if (usb_endpoint_is_bulk_out(endpoint)) {
234 cardp->ep_out_size = le16_to_cpu(endpoint->wMaxPacketSize);
235 cardp->ep_out = usb_endpoint_num(endpoint);
236
237 lbs_deb_usbd(&udev->dev, "out_endpoint = %d\n", cardp->ep_out);
238 lbs_deb_usbd(&udev->dev, "Bulk out size is %d\n", cardp->ep_out_size);
239 }
240 }
241 if (!cardp->ep_out_size || !cardp->ep_in_size) {
242 lbs_deb_usbd(&udev->dev, "Endpoints not found\n");
243 goto dealloc;
244 }
245 if (!(cardp->rx_urb = usb_alloc_urb(0, GFP_KERNEL))) {
246 lbs_deb_usbd(&udev->dev, "Rx URB allocation failed\n");
247 goto dealloc;
248 }
249 if (!(cardp->tx_urb = usb_alloc_urb(0, GFP_KERNEL))) {
250 lbs_deb_usbd(&udev->dev, "Tx URB allocation failed\n");
251 goto dealloc;
252 }
253 cardp->ep_out_buf = kmalloc(MRVDRV_ETH_TX_PACKET_BUFFER_SIZE, GFP_KERNEL);
254 if (!cardp->ep_out_buf) {
255 lbs_deb_usbd(&udev->dev, "Could not allocate buffer\n");
256 goto dealloc;
257 }
258
259 priv = lbs_add_card(cardp, &intf->dev);
260 if (IS_ERR(priv)) {
261 r = PTR_ERR(priv);
262 goto err_add_card;
263 }
264
265 cardp->priv = priv;
266
267 priv->hw_host_to_card = if_usb_host_to_card;
268 priv->enter_deep_sleep = NULL;
269 priv->exit_deep_sleep = NULL;
270 priv->reset_deep_sleep_wakeup = NULL;
271 priv->is_polling = false;
272#ifdef CONFIG_OLPC
273 if (machine_is_olpc())
274 priv->reset_card = if_usb_reset_olpc_card;
275#endif
276
277 cardp->boot2_version = udev->descriptor.bcdDevice;
278
279 usb_get_dev(udev);
280 usb_set_intfdata(intf, cardp);
281
282 r = lbs_get_firmware_async(priv, &udev->dev, cardp->model,
283 fw_table, if_usb_prog_firmware);
284 if (r)
285 goto err_get_fw;
286
287 return 0;
288
289err_get_fw:
290 lbs_remove_card(priv);
291err_add_card:
292 if_usb_reset_device(cardp);
293dealloc:
294 if_usb_free(cardp);
295 kfree(cardp);
296
297error:
298 return r;
299}
300
301
302
303
304
305
306static void if_usb_disconnect(struct usb_interface *intf)
307{
308 struct if_usb_card *cardp = usb_get_intfdata(intf);
309 struct lbs_private *priv = cardp->priv;
310
311 cardp->surprise_removed = 1;
312
313 if (priv) {
314 lbs_stop_card(priv);
315 lbs_remove_card(priv);
316 }
317
318
319 if_usb_free(cardp);
320 kfree(cardp);
321
322 usb_set_intfdata(intf, NULL);
323 usb_put_dev(interface_to_usbdev(intf));
324}
325
326
327
328
329
330
331static int if_usb_send_fw_pkt(struct if_usb_card *cardp)
332{
333 struct fwdata *fwdata = cardp->ep_out_buf;
334 const uint8_t *firmware = cardp->fw->data;
335
336
337
338 if (!cardp->CRC_OK) {
339 cardp->totalbytes = cardp->fwlastblksent;
340 cardp->fwseqnum--;
341 }
342
343 lbs_deb_usb2(&cardp->udev->dev, "totalbytes = %d\n",
344 cardp->totalbytes);
345
346
347
348
349
350 memcpy(&fwdata->hdr, &firmware[cardp->totalbytes],
351 sizeof(struct fwheader));
352
353 cardp->fwlastblksent = cardp->totalbytes;
354 cardp->totalbytes += sizeof(struct fwheader);
355
356 memcpy(fwdata->data, &firmware[cardp->totalbytes],
357 le32_to_cpu(fwdata->hdr.datalength));
358
359 lbs_deb_usb2(&cardp->udev->dev, "Data length = %d\n",
360 le32_to_cpu(fwdata->hdr.datalength));
361
362 fwdata->seqnum = cpu_to_le32(++cardp->fwseqnum);
363 cardp->totalbytes += le32_to_cpu(fwdata->hdr.datalength);
364
365 usb_tx_block(cardp, cardp->ep_out_buf, sizeof(struct fwdata) +
366 le32_to_cpu(fwdata->hdr.datalength));
367
368 if (fwdata->hdr.dnldcmd == cpu_to_le32(FW_HAS_DATA_TO_RECV)) {
369 lbs_deb_usb2(&cardp->udev->dev, "There are data to follow\n");
370 lbs_deb_usb2(&cardp->udev->dev, "seqnum = %d totalbytes = %d\n",
371 cardp->fwseqnum, cardp->totalbytes);
372 } else if (fwdata->hdr.dnldcmd == cpu_to_le32(FW_HAS_LAST_BLOCK)) {
373 lbs_deb_usb2(&cardp->udev->dev, "Host has finished FW downloading\n");
374 lbs_deb_usb2(&cardp->udev->dev, "Downloading FW JUMP BLOCK\n");
375
376 cardp->fwfinalblk = 1;
377 }
378
379 lbs_deb_usb2(&cardp->udev->dev, "Firmware download done; size %d\n",
380 cardp->totalbytes);
381
382 return 0;
383}
384
385static int if_usb_reset_device(struct if_usb_card *cardp)
386{
387 struct cmd_header *cmd = cardp->ep_out_buf + 4;
388 int ret;
389
390 *(__le32 *)cardp->ep_out_buf = cpu_to_le32(CMD_TYPE_REQUEST);
391
392 cmd->command = cpu_to_le16(CMD_802_11_RESET);
393 cmd->size = cpu_to_le16(sizeof(cmd));
394 cmd->result = cpu_to_le16(0);
395 cmd->seqnum = cpu_to_le16(0x5a5a);
396 usb_tx_block(cardp, cardp->ep_out_buf, 4 + sizeof(struct cmd_header));
397
398 msleep(100);
399 ret = usb_reset_device(cardp->udev);
400 msleep(100);
401
402#ifdef CONFIG_OLPC
403 if (ret && machine_is_olpc())
404 if_usb_reset_olpc_card(NULL);
405#endif
406
407 return ret;
408}
409
410
411
412
413
414
415
416
417static int usb_tx_block(struct if_usb_card *cardp, uint8_t *payload, uint16_t nb)
418{
419 int ret;
420
421
422 if (cardp->surprise_removed) {
423 lbs_deb_usbd(&cardp->udev->dev, "Device removed\n");
424 ret = -ENODEV;
425 goto tx_ret;
426 }
427
428 usb_fill_bulk_urb(cardp->tx_urb, cardp->udev,
429 usb_sndbulkpipe(cardp->udev,
430 cardp->ep_out),
431 payload, nb, if_usb_write_bulk_callback, cardp);
432
433 cardp->tx_urb->transfer_flags |= URB_ZERO_PACKET;
434
435 if ((ret = usb_submit_urb(cardp->tx_urb, GFP_ATOMIC))) {
436 lbs_deb_usbd(&cardp->udev->dev, "usb_submit_urb failed: %d\n", ret);
437 } else {
438 lbs_deb_usb2(&cardp->udev->dev, "usb_submit_urb success\n");
439 ret = 0;
440 }
441
442tx_ret:
443 return ret;
444}
445
446static int __if_usb_submit_rx_urb(struct if_usb_card *cardp,
447 void (*callbackfn)(struct urb *urb))
448{
449 struct sk_buff *skb;
450 int ret = -1;
451
452 if (!(skb = dev_alloc_skb(MRVDRV_ETH_RX_PACKET_BUFFER_SIZE))) {
453 pr_err("No free skb\n");
454 goto rx_ret;
455 }
456
457 cardp->rx_skb = skb;
458
459
460 usb_fill_bulk_urb(cardp->rx_urb, cardp->udev,
461 usb_rcvbulkpipe(cardp->udev, cardp->ep_in),
462 skb->data + IPFIELD_ALIGN_OFFSET,
463 MRVDRV_ETH_RX_PACKET_BUFFER_SIZE, callbackfn,
464 cardp);
465
466 lbs_deb_usb2(&cardp->udev->dev, "Pointer for rx_urb %p\n", cardp->rx_urb);
467 if ((ret = usb_submit_urb(cardp->rx_urb, GFP_ATOMIC))) {
468 lbs_deb_usbd(&cardp->udev->dev, "Submit Rx URB failed: %d\n", ret);
469 kfree_skb(skb);
470 cardp->rx_skb = NULL;
471 ret = -1;
472 } else {
473 lbs_deb_usb2(&cardp->udev->dev, "Submit Rx URB success\n");
474 ret = 0;
475 }
476
477rx_ret:
478 return ret;
479}
480
481static int if_usb_submit_rx_urb_fwload(struct if_usb_card *cardp)
482{
483 return __if_usb_submit_rx_urb(cardp, &if_usb_receive_fwload);
484}
485
486static int if_usb_submit_rx_urb(struct if_usb_card *cardp)
487{
488 return __if_usb_submit_rx_urb(cardp, &if_usb_receive);
489}
490
491static void if_usb_receive_fwload(struct urb *urb)
492{
493 struct if_usb_card *cardp = urb->context;
494 struct sk_buff *skb = cardp->rx_skb;
495 struct fwsyncheader *syncfwheader;
496 struct bootcmdresp bootcmdresp;
497
498 if (urb->status) {
499 lbs_deb_usbd(&cardp->udev->dev,
500 "URB status is failed during fw load\n");
501 kfree_skb(skb);
502 return;
503 }
504
505 if (cardp->fwdnldover) {
506 __le32 *tmp = (__le32 *)(skb->data + IPFIELD_ALIGN_OFFSET);
507
508 if (tmp[0] == cpu_to_le32(CMD_TYPE_INDICATION) &&
509 tmp[1] == cpu_to_le32(MACREG_INT_CODE_FIRMWARE_READY)) {
510 pr_info("Firmware ready event received\n");
511 wake_up(&cardp->fw_wq);
512 } else {
513 lbs_deb_usb("Waiting for confirmation; got %x %x\n",
514 le32_to_cpu(tmp[0]), le32_to_cpu(tmp[1]));
515 if_usb_submit_rx_urb_fwload(cardp);
516 }
517 kfree_skb(skb);
518 return;
519 }
520 if (cardp->bootcmdresp <= 0) {
521 memcpy (&bootcmdresp, skb->data + IPFIELD_ALIGN_OFFSET,
522 sizeof(bootcmdresp));
523
524 if (le16_to_cpu(cardp->udev->descriptor.bcdDevice) < 0x3106) {
525 kfree_skb(skb);
526 if_usb_submit_rx_urb_fwload(cardp);
527 cardp->bootcmdresp = BOOT_CMD_RESP_OK;
528 lbs_deb_usbd(&cardp->udev->dev,
529 "Received valid boot command response\n");
530 return;
531 }
532 if (bootcmdresp.magic != cpu_to_le32(BOOT_CMD_MAGIC_NUMBER)) {
533 if (bootcmdresp.magic == cpu_to_le32(CMD_TYPE_REQUEST) ||
534 bootcmdresp.magic == cpu_to_le32(CMD_TYPE_DATA) ||
535 bootcmdresp.magic == cpu_to_le32(CMD_TYPE_INDICATION)) {
536 if (!cardp->bootcmdresp)
537 pr_info("Firmware already seems alive; resetting\n");
538 cardp->bootcmdresp = -1;
539 } else {
540 pr_info("boot cmd response wrong magic number (0x%x)\n",
541 le32_to_cpu(bootcmdresp.magic));
542 }
543 } else if ((bootcmdresp.cmd != BOOT_CMD_FW_BY_USB) &&
544 (bootcmdresp.cmd != BOOT_CMD_UPDATE_FW) &&
545 (bootcmdresp.cmd != BOOT_CMD_UPDATE_BOOT2)) {
546 pr_info("boot cmd response cmd_tag error (%d)\n",
547 bootcmdresp.cmd);
548 } else if (bootcmdresp.result != BOOT_CMD_RESP_OK) {
549 pr_info("boot cmd response result error (%d)\n",
550 bootcmdresp.result);
551 } else {
552 cardp->bootcmdresp = 1;
553 lbs_deb_usbd(&cardp->udev->dev,
554 "Received valid boot command response\n");
555 }
556 kfree_skb(skb);
557 if_usb_submit_rx_urb_fwload(cardp);
558 return;
559 }
560
561 syncfwheader = kmemdup(skb->data + IPFIELD_ALIGN_OFFSET,
562 sizeof(struct fwsyncheader), GFP_ATOMIC);
563 if (!syncfwheader) {
564 lbs_deb_usbd(&cardp->udev->dev, "Failure to allocate syncfwheader\n");
565 kfree_skb(skb);
566 return;
567 }
568
569 if (!syncfwheader->cmd) {
570 lbs_deb_usb2(&cardp->udev->dev, "FW received Blk with correct CRC\n");
571 lbs_deb_usb2(&cardp->udev->dev, "FW received Blk seqnum = %d\n",
572 le32_to_cpu(syncfwheader->seqnum));
573 cardp->CRC_OK = 1;
574 } else {
575 lbs_deb_usbd(&cardp->udev->dev, "FW received Blk with CRC error\n");
576 cardp->CRC_OK = 0;
577 }
578
579 kfree_skb(skb);
580
581
582 mod_timer(&cardp->fw_timeout, jiffies + (HZ*5));
583
584 if (cardp->fwfinalblk) {
585 cardp->fwdnldover = 1;
586 goto exit;
587 }
588
589 if_usb_send_fw_pkt(cardp);
590
591 exit:
592 if_usb_submit_rx_urb_fwload(cardp);
593
594 kfree(syncfwheader);
595}
596
597#define MRVDRV_MIN_PKT_LEN 30
598
599static inline void process_cmdtypedata(int recvlength, struct sk_buff *skb,
600 struct if_usb_card *cardp,
601 struct lbs_private *priv)
602{
603 if (recvlength > MRVDRV_ETH_RX_PACKET_BUFFER_SIZE + MESSAGE_HEADER_LEN
604 || recvlength < MRVDRV_MIN_PKT_LEN) {
605 lbs_deb_usbd(&cardp->udev->dev, "Packet length is Invalid\n");
606 kfree_skb(skb);
607 return;
608 }
609
610 skb_reserve(skb, IPFIELD_ALIGN_OFFSET);
611 skb_put(skb, recvlength);
612 skb_pull(skb, MESSAGE_HEADER_LEN);
613
614 lbs_process_rxed_packet(priv, skb);
615}
616
617static inline void process_cmdrequest(int recvlength, uint8_t *recvbuff,
618 struct sk_buff *skb,
619 struct if_usb_card *cardp,
620 struct lbs_private *priv)
621{
622 unsigned long flags;
623 u8 i;
624
625 if (recvlength > LBS_CMD_BUFFER_SIZE) {
626 lbs_deb_usbd(&cardp->udev->dev,
627 "The receive buffer is too large\n");
628 kfree_skb(skb);
629 return;
630 }
631
632 spin_lock_irqsave(&priv->driver_lock, flags);
633
634 i = (priv->resp_idx == 0) ? 1 : 0;
635 BUG_ON(priv->resp_len[i]);
636 priv->resp_len[i] = (recvlength - MESSAGE_HEADER_LEN);
637 memcpy(priv->resp_buf[i], recvbuff + MESSAGE_HEADER_LEN,
638 priv->resp_len[i]);
639 kfree_skb(skb);
640 lbs_notify_command_response(priv, i);
641
642 spin_unlock_irqrestore(&priv->driver_lock, flags);
643
644 lbs_deb_usbd(&cardp->udev->dev,
645 "Wake up main thread to handle cmd response\n");
646}
647
648
649
650
651
652
653
654
655static void if_usb_receive(struct urb *urb)
656{
657 struct if_usb_card *cardp = urb->context;
658 struct sk_buff *skb = cardp->rx_skb;
659 struct lbs_private *priv = cardp->priv;
660 int recvlength = urb->actual_length;
661 uint8_t *recvbuff = NULL;
662 uint32_t recvtype = 0;
663 __le32 *pkt = (__le32 *)(skb->data + IPFIELD_ALIGN_OFFSET);
664 uint32_t event;
665
666 if (recvlength) {
667 if (urb->status) {
668 lbs_deb_usbd(&cardp->udev->dev, "RX URB failed: %d\n",
669 urb->status);
670 kfree_skb(skb);
671 goto setup_for_next;
672 }
673
674 recvbuff = skb->data + IPFIELD_ALIGN_OFFSET;
675 recvtype = le32_to_cpu(pkt[0]);
676 lbs_deb_usbd(&cardp->udev->dev,
677 "Recv length = 0x%x, Recv type = 0x%X\n",
678 recvlength, recvtype);
679 } else if (urb->status) {
680 kfree_skb(skb);
681 return;
682 }
683
684 switch (recvtype) {
685 case CMD_TYPE_DATA:
686 process_cmdtypedata(recvlength, skb, cardp, priv);
687 break;
688
689 case CMD_TYPE_REQUEST:
690 process_cmdrequest(recvlength, recvbuff, skb, cardp, priv);
691 break;
692
693 case CMD_TYPE_INDICATION:
694
695 event = le32_to_cpu(pkt[1]);
696 lbs_deb_usbd(&cardp->udev->dev, "**EVENT** 0x%X\n", event);
697 kfree_skb(skb);
698
699
700 if (event & 0xffff0000) {
701 u32 trycount = (event & 0xffff0000) >> 16;
702
703 lbs_send_tx_feedback(priv, trycount);
704 } else
705 lbs_queue_event(priv, event & 0xFF);
706 break;
707
708 default:
709 lbs_deb_usbd(&cardp->udev->dev, "Unknown command type 0x%X\n",
710 recvtype);
711 kfree_skb(skb);
712 break;
713 }
714
715setup_for_next:
716 if_usb_submit_rx_urb(cardp);
717}
718
719
720
721
722
723
724
725
726
727static int if_usb_host_to_card(struct lbs_private *priv, uint8_t type,
728 uint8_t *payload, uint16_t nb)
729{
730 struct if_usb_card *cardp = priv->card;
731
732 lbs_deb_usbd(&cardp->udev->dev,"*** type = %u\n", type);
733 lbs_deb_usbd(&cardp->udev->dev,"size after = %d\n", nb);
734
735 if (type == MVMS_CMD) {
736 *(__le32 *)cardp->ep_out_buf = cpu_to_le32(CMD_TYPE_REQUEST);
737 priv->dnld_sent = DNLD_CMD_SENT;
738 } else {
739 *(__le32 *)cardp->ep_out_buf = cpu_to_le32(CMD_TYPE_DATA);
740 priv->dnld_sent = DNLD_DATA_SENT;
741 }
742
743 memcpy((cardp->ep_out_buf + MESSAGE_HEADER_LEN), payload, nb);
744
745 return usb_tx_block(cardp, cardp->ep_out_buf, nb + MESSAGE_HEADER_LEN);
746}
747
748
749
750
751
752
753
754
755static int if_usb_issue_boot_command(struct if_usb_card *cardp, int ivalue)
756{
757 struct bootcmd *bootcmd = cardp->ep_out_buf;
758
759
760 bootcmd->magic = cpu_to_le32(BOOT_CMD_MAGIC_NUMBER);
761 bootcmd->cmd = ivalue;
762 memset(bootcmd->pad, 0, sizeof(bootcmd->pad));
763
764
765 usb_tx_block(cardp, cardp->ep_out_buf, sizeof(*bootcmd));
766
767 return 0;
768}
769
770
771
772
773
774
775
776
777
778static int check_fwfile_format(const uint8_t *data, uint32_t totlen)
779{
780 uint32_t bincmd, exit;
781 uint32_t blksize, offset, len;
782 int ret;
783
784 ret = 1;
785 exit = len = 0;
786
787 do {
788 struct fwheader *fwh = (void *)data;
789
790 bincmd = le32_to_cpu(fwh->dnldcmd);
791 blksize = le32_to_cpu(fwh->datalength);
792 switch (bincmd) {
793 case FW_HAS_DATA_TO_RECV:
794 offset = sizeof(struct fwheader) + blksize;
795 data += offset;
796 len += offset;
797 if (len >= totlen)
798 exit = 1;
799 break;
800 case FW_HAS_LAST_BLOCK:
801 exit = 1;
802 ret = 0;
803 break;
804 default:
805 exit = 1;
806 break;
807 }
808 } while (!exit);
809
810 if (ret)
811 pr_err("firmware file format check FAIL\n");
812 else
813 lbs_deb_fw("firmware file format check PASS\n");
814
815 return ret;
816}
817
818static void if_usb_prog_firmware(struct lbs_private *priv, int ret,
819 const struct firmware *fw,
820 const struct firmware *unused)
821{
822 struct if_usb_card *cardp = priv->card;
823 int i = 0;
824 static int reset_count = 10;
825
826 if (ret) {
827 pr_err("failed to find firmware (%d)\n", ret);
828 goto done;
829 }
830
831 cardp->fw = fw;
832 if (check_fwfile_format(cardp->fw->data, cardp->fw->size)) {
833 ret = -EINVAL;
834 goto done;
835 }
836
837
838 usb_kill_urb(cardp->rx_urb);
839 usb_kill_urb(cardp->tx_urb);
840
841 cardp->fwlastblksent = 0;
842 cardp->fwdnldover = 0;
843 cardp->totalbytes = 0;
844 cardp->fwfinalblk = 0;
845 cardp->bootcmdresp = 0;
846
847restart:
848 if (if_usb_submit_rx_urb_fwload(cardp) < 0) {
849 lbs_deb_usbd(&cardp->udev->dev, "URB submission is failed\n");
850 ret = -EIO;
851 goto done;
852 }
853
854 cardp->bootcmdresp = 0;
855 do {
856 int j = 0;
857 i++;
858 if_usb_issue_boot_command(cardp, BOOT_CMD_FW_BY_USB);
859
860 do {
861 j++;
862 msleep_interruptible(100);
863 } while (cardp->bootcmdresp == 0 && j < 10);
864 } while (cardp->bootcmdresp == 0 && i < 5);
865
866 if (cardp->bootcmdresp == BOOT_CMD_RESP_NOT_SUPPORTED) {
867
868 ret = -EOPNOTSUPP;
869 usb_kill_urb(cardp->rx_urb);
870 usb_kill_urb(cardp->tx_urb);
871 if (if_usb_submit_rx_urb(cardp) < 0)
872 ret = -EIO;
873 goto done;
874 } else if (cardp->bootcmdresp <= 0) {
875 if (--reset_count >= 0) {
876 if_usb_reset_device(cardp);
877 goto restart;
878 }
879 ret = -EIO;
880 goto done;
881 }
882
883 i = 0;
884
885 cardp->totalbytes = 0;
886 cardp->fwlastblksent = 0;
887 cardp->CRC_OK = 1;
888 cardp->fwdnldover = 0;
889 cardp->fwseqnum = -1;
890 cardp->totalbytes = 0;
891 cardp->fwfinalblk = 0;
892
893
894 if_usb_send_fw_pkt(cardp);
895
896
897 wait_event_interruptible(cardp->fw_wq, cardp->surprise_removed || cardp->fwdnldover);
898
899 del_timer_sync(&cardp->fw_timeout);
900 usb_kill_urb(cardp->rx_urb);
901
902 if (!cardp->fwdnldover) {
903 pr_info("failed to load fw, resetting device!\n");
904 if (--reset_count >= 0) {
905 if_usb_reset_device(cardp);
906 goto restart;
907 }
908
909 pr_info("FW download failure, time = %d ms\n", i * 100);
910 ret = -EIO;
911 goto done;
912 }
913
914 cardp->priv->fw_ready = 1;
915 if_usb_submit_rx_urb(cardp);
916
917 if (lbs_start_card(priv))
918 goto done;
919
920 if_usb_setup_firmware(priv);
921
922
923
924
925 priv->wol_criteria = EHS_REMOVE_WAKEUP;
926 if (lbs_host_sleep_cfg(priv, priv->wol_criteria, NULL))
927 priv->ehs_remove_supported = false;
928
929 done:
930 cardp->fw = NULL;
931}
932
933
934#ifdef CONFIG_PM
935static int if_usb_suspend(struct usb_interface *intf, pm_message_t message)
936{
937 struct if_usb_card *cardp = usb_get_intfdata(intf);
938 struct lbs_private *priv = cardp->priv;
939 int ret;
940
941 if (priv->psstate != PS_STATE_FULL_POWER) {
942 ret = -1;
943 goto out;
944 }
945
946#ifdef CONFIG_OLPC
947 if (machine_is_olpc()) {
948 if (priv->wol_criteria == EHS_REMOVE_WAKEUP)
949 olpc_ec_wakeup_clear(EC_SCI_SRC_WLAN);
950 else
951 olpc_ec_wakeup_set(EC_SCI_SRC_WLAN);
952 }
953#endif
954
955 ret = lbs_suspend(priv);
956 if (ret)
957 goto out;
958
959
960 usb_kill_urb(cardp->tx_urb);
961 usb_kill_urb(cardp->rx_urb);
962
963 out:
964 return ret;
965}
966
967static int if_usb_resume(struct usb_interface *intf)
968{
969 struct if_usb_card *cardp = usb_get_intfdata(intf);
970 struct lbs_private *priv = cardp->priv;
971
972 if_usb_submit_rx_urb(cardp);
973
974 lbs_resume(priv);
975
976 return 0;
977}
978#else
979#define if_usb_suspend NULL
980#define if_usb_resume NULL
981#endif
982
983static struct usb_driver if_usb_driver = {
984 .name = DRV_NAME,
985 .probe = if_usb_probe,
986 .disconnect = if_usb_disconnect,
987 .id_table = if_usb_table,
988 .suspend = if_usb_suspend,
989 .resume = if_usb_resume,
990 .reset_resume = if_usb_resume,
991 .disable_hub_initiated_lpm = 1,
992};
993
994module_usb_driver(if_usb_driver);
995
996MODULE_DESCRIPTION("8388 USB WLAN Driver");
997MODULE_AUTHOR("Marvell International Ltd. and Red Hat, Inc.");
998MODULE_LICENSE("GPL");
999
