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727c26ed PO |
1 | /* |
2 | * linux/drivers/net/wireless/libertas/if_sdio.c | |
3 | * | |
ad3868b2 | 4 | * Copyright 2007-2008 Pierre Ossman |
727c26ed PO |
5 | * |
6 | * Inspired by if_cs.c, Copyright 2007 Holger Schurig | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2 of the License, or (at | |
11 | * your option) any later version. | |
12 | * | |
13 | * This hardware has more or less no CMD53 support, so all registers | |
14 | * must be accessed using sdio_readb()/sdio_writeb(). | |
15 | * | |
16 | * Transfers must be in one transaction or the firmware goes bonkers. | |
17 | * This means that the transfer must either be small enough to do a | |
18 | * byte based transfer or it must be padded to a multiple of the | |
19 | * current block size. | |
20 | * | |
21 | * As SDIO is still new to the kernel, it is unfortunately common with | |
7e226272 | 22 | * bugs in the host controllers related to that. One such bug is that |
727c26ed PO |
23 | * controllers cannot do transfers that aren't a multiple of 4 bytes. |
24 | * If you don't have time to fix the host controller driver, you can | |
25 | * work around the problem by modifying if_sdio_host_to_card() and | |
26 | * if_sdio_card_to_host() to pad the data. | |
27 | */ | |
28 | ||
23827926 | 29 | #include <linux/kernel.h> |
727c26ed PO |
30 | #include <linux/moduleparam.h> |
31 | #include <linux/firmware.h> | |
32 | #include <linux/netdevice.h> | |
33 | #include <linux/delay.h> | |
34 | #include <linux/mmc/card.h> | |
35 | #include <linux/mmc/sdio_func.h> | |
36 | #include <linux/mmc/sdio_ids.h> | |
37 | ||
38 | #include "host.h" | |
39 | #include "decl.h" | |
40 | #include "defs.h" | |
41 | #include "dev.h" | |
6bc61f4d | 42 | #include "cmd.h" |
727c26ed PO |
43 | #include "if_sdio.h" |
44 | ||
6bc61f4d BZ |
45 | /* The if_sdio_remove() callback function is called when |
46 | * user removes this module from kernel space or ejects | |
47 | * the card from the slot. The driver handles these 2 cases | |
48 | * differently for SD8688 combo chip. | |
49 | * If the user is removing the module, the FUNC_SHUTDOWN | |
50 | * command for SD8688 is sent to the firmware. | |
51 | * If the card is removed, there is no need to send this command. | |
52 | * | |
53 | * The variable 'user_rmmod' is used to distinguish these two | |
54 | * scenarios. This flag is initialized as FALSE in case the card | |
55 | * is removed, and will be set to TRUE for module removal when | |
56 | * module_exit function is called. | |
57 | */ | |
58 | static u8 user_rmmod; | |
59 | ||
10078321 HS |
60 | static char *lbs_helper_name = NULL; |
61 | module_param_named(helper_name, lbs_helper_name, charp, 0644); | |
727c26ed | 62 | |
10078321 HS |
63 | static char *lbs_fw_name = NULL; |
64 | module_param_named(fw_name, lbs_fw_name, charp, 0644); | |
727c26ed PO |
65 | |
66 | static const struct sdio_device_id if_sdio_ids[] = { | |
e45d8e53 BZ |
67 | { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, |
68 | SDIO_DEVICE_ID_MARVELL_LIBERTAS) }, | |
69 | { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, | |
70 | SDIO_DEVICE_ID_MARVELL_8688WLAN) }, | |
71 | { /* end: all zeroes */ }, | |
727c26ed PO |
72 | }; |
73 | ||
74 | MODULE_DEVICE_TABLE(sdio, if_sdio_ids); | |
75 | ||
76 | struct if_sdio_model { | |
77 | int model; | |
78 | const char *helper; | |
79 | const char *firmware; | |
80 | }; | |
81 | ||
82 | static struct if_sdio_model if_sdio_models[] = { | |
83 | { | |
84 | /* 8385 */ | |
e70a5ac5 | 85 | .model = IF_SDIO_MODEL_8385, |
727c26ed PO |
86 | .helper = "sd8385_helper.bin", |
87 | .firmware = "sd8385.bin", | |
88 | }, | |
89 | { | |
90 | /* 8686 */ | |
e70a5ac5 | 91 | .model = IF_SDIO_MODEL_8686, |
727c26ed PO |
92 | .helper = "sd8686_helper.bin", |
93 | .firmware = "sd8686.bin", | |
94 | }, | |
e45d8e53 BZ |
95 | { |
96 | /* 8688 */ | |
e70a5ac5 | 97 | .model = IF_SDIO_MODEL_8688, |
e45d8e53 BZ |
98 | .helper = "sd8688_helper.bin", |
99 | .firmware = "sd8688.bin", | |
100 | }, | |
727c26ed PO |
101 | }; |
102 | ||
103 | struct if_sdio_packet { | |
104 | struct if_sdio_packet *next; | |
105 | u16 nb; | |
106 | u8 buffer[0] __attribute__((aligned(4))); | |
107 | }; | |
108 | ||
109 | struct if_sdio_card { | |
110 | struct sdio_func *func; | |
69f9032d | 111 | struct lbs_private *priv; |
727c26ed PO |
112 | |
113 | int model; | |
114 | unsigned long ioport; | |
2c7e5798 | 115 | unsigned int scratch_reg; |
727c26ed PO |
116 | |
117 | const char *helper; | |
118 | const char *firmware; | |
119 | ||
120 | u8 buffer[65536]; | |
727c26ed PO |
121 | |
122 | spinlock_t lock; | |
123 | struct if_sdio_packet *packets; | |
9b02f419 DW |
124 | |
125 | struct workqueue_struct *workqueue; | |
727c26ed | 126 | struct work_struct packet_worker; |
b136a141 BZ |
127 | |
128 | u8 rx_unit; | |
727c26ed PO |
129 | }; |
130 | ||
131 | /********************************************************************/ | |
132 | /* I/O */ | |
133 | /********************************************************************/ | |
134 | ||
2c7e5798 BZ |
135 | /* |
136 | * For SD8385/SD8686, this function reads firmware status after | |
137 | * the image is downloaded, or reads RX packet length when | |
138 | * interrupt (with IF_SDIO_H_INT_UPLD bit set) is received. | |
139 | * For SD8688, this function reads firmware status only. | |
140 | */ | |
727c26ed PO |
141 | static u16 if_sdio_read_scratch(struct if_sdio_card *card, int *err) |
142 | { | |
2c7e5798 | 143 | int ret; |
727c26ed PO |
144 | u16 scratch; |
145 | ||
2c7e5798 | 146 | scratch = sdio_readb(card->func, card->scratch_reg, &ret); |
727c26ed | 147 | if (!ret) |
2c7e5798 BZ |
148 | scratch |= sdio_readb(card->func, card->scratch_reg + 1, |
149 | &ret) << 8; | |
727c26ed PO |
150 | |
151 | if (err) | |
152 | *err = ret; | |
153 | ||
154 | if (ret) | |
155 | return 0xffff; | |
156 | ||
157 | return scratch; | |
158 | } | |
159 | ||
b136a141 BZ |
160 | static u8 if_sdio_read_rx_unit(struct if_sdio_card *card) |
161 | { | |
162 | int ret; | |
163 | u8 rx_unit; | |
164 | ||
165 | rx_unit = sdio_readb(card->func, IF_SDIO_RX_UNIT, &ret); | |
166 | ||
167 | if (ret) | |
168 | rx_unit = 0; | |
169 | ||
170 | return rx_unit; | |
171 | } | |
172 | ||
173 | static u16 if_sdio_read_rx_len(struct if_sdio_card *card, int *err) | |
174 | { | |
175 | int ret; | |
176 | u16 rx_len; | |
177 | ||
178 | switch (card->model) { | |
179 | case IF_SDIO_MODEL_8385: | |
180 | case IF_SDIO_MODEL_8686: | |
181 | rx_len = if_sdio_read_scratch(card, &ret); | |
182 | break; | |
183 | case IF_SDIO_MODEL_8688: | |
184 | default: /* for newer chipsets */ | |
185 | rx_len = sdio_readb(card->func, IF_SDIO_RX_LEN, &ret); | |
186 | if (!ret) | |
187 | rx_len <<= card->rx_unit; | |
188 | else | |
189 | rx_len = 0xffff; /* invalid length */ | |
190 | ||
191 | break; | |
192 | } | |
193 | ||
194 | if (err) | |
195 | *err = ret; | |
196 | ||
197 | return rx_len; | |
198 | } | |
199 | ||
727c26ed PO |
200 | static int if_sdio_handle_cmd(struct if_sdio_card *card, |
201 | u8 *buffer, unsigned size) | |
202 | { | |
7919b89c | 203 | struct lbs_private *priv = card->priv; |
727c26ed PO |
204 | int ret; |
205 | unsigned long flags; | |
7919b89c | 206 | u8 i; |
727c26ed PO |
207 | |
208 | lbs_deb_enter(LBS_DEB_SDIO); | |
209 | ||
ddac4526 | 210 | if (size > LBS_CMD_BUFFER_SIZE) { |
727c26ed PO |
211 | lbs_deb_sdio("response packet too large (%d bytes)\n", |
212 | (int)size); | |
213 | ret = -E2BIG; | |
214 | goto out; | |
215 | } | |
216 | ||
7919b89c | 217 | spin_lock_irqsave(&priv->driver_lock, flags); |
727c26ed | 218 | |
7919b89c HS |
219 | i = (priv->resp_idx == 0) ? 1 : 0; |
220 | BUG_ON(priv->resp_len[i]); | |
221 | priv->resp_len[i] = size; | |
222 | memcpy(priv->resp_buf[i], buffer, size); | |
223 | lbs_notify_command_response(priv, i); | |
727c26ed | 224 | |
7919b89c | 225 | spin_unlock_irqrestore(&card->priv->driver_lock, flags); |
727c26ed PO |
226 | |
227 | ret = 0; | |
228 | ||
229 | out: | |
727c26ed | 230 | lbs_deb_leave_args(LBS_DEB_SDIO, "ret %d", ret); |
727c26ed PO |
231 | return ret; |
232 | } | |
233 | ||
234 | static int if_sdio_handle_data(struct if_sdio_card *card, | |
235 | u8 *buffer, unsigned size) | |
236 | { | |
237 | int ret; | |
238 | struct sk_buff *skb; | |
239 | char *data; | |
240 | ||
241 | lbs_deb_enter(LBS_DEB_SDIO); | |
242 | ||
243 | if (size > MRVDRV_ETH_RX_PACKET_BUFFER_SIZE) { | |
244 | lbs_deb_sdio("response packet too large (%d bytes)\n", | |
245 | (int)size); | |
246 | ret = -E2BIG; | |
247 | goto out; | |
248 | } | |
249 | ||
51e6b712 | 250 | skb = dev_alloc_skb(MRVDRV_ETH_RX_PACKET_BUFFER_SIZE + NET_IP_ALIGN); |
727c26ed PO |
251 | if (!skb) { |
252 | ret = -ENOMEM; | |
253 | goto out; | |
254 | } | |
255 | ||
51e6b712 PO |
256 | skb_reserve(skb, NET_IP_ALIGN); |
257 | ||
727c26ed PO |
258 | data = skb_put(skb, size); |
259 | ||
260 | memcpy(data, buffer, size); | |
261 | ||
10078321 | 262 | lbs_process_rxed_packet(card->priv, skb); |
727c26ed PO |
263 | |
264 | ret = 0; | |
265 | ||
266 | out: | |
267 | lbs_deb_leave_args(LBS_DEB_SDIO, "ret %d", ret); | |
268 | ||
269 | return ret; | |
270 | } | |
271 | ||
272 | static int if_sdio_handle_event(struct if_sdio_card *card, | |
273 | u8 *buffer, unsigned size) | |
274 | { | |
275 | int ret; | |
727c26ed PO |
276 | u32 event; |
277 | ||
278 | lbs_deb_enter(LBS_DEB_SDIO); | |
279 | ||
e70a5ac5 | 280 | if (card->model == IF_SDIO_MODEL_8385) { |
727c26ed PO |
281 | event = sdio_readb(card->func, IF_SDIO_EVENT, &ret); |
282 | if (ret) | |
283 | goto out; | |
f5ac2b9e BZ |
284 | |
285 | /* right shift 3 bits to get the event id */ | |
286 | event >>= 3; | |
727c26ed PO |
287 | } else { |
288 | if (size < 4) { | |
289 | lbs_deb_sdio("event packet too small (%d bytes)\n", | |
290 | (int)size); | |
291 | ret = -EINVAL; | |
292 | goto out; | |
293 | } | |
294 | event = buffer[3] << 24; | |
295 | event |= buffer[2] << 16; | |
296 | event |= buffer[1] << 8; | |
297 | event |= buffer[0] << 0; | |
727c26ed PO |
298 | } |
299 | ||
7919b89c | 300 | lbs_queue_event(card->priv, event & 0xFF); |
727c26ed PO |
301 | ret = 0; |
302 | ||
303 | out: | |
304 | lbs_deb_leave_args(LBS_DEB_SDIO, "ret %d", ret); | |
305 | ||
306 | return ret; | |
307 | } | |
308 | ||
309 | static int if_sdio_card_to_host(struct if_sdio_card *card) | |
310 | { | |
311 | int ret; | |
312 | u8 status; | |
313 | u16 size, type, chunk; | |
314 | unsigned long timeout; | |
315 | ||
316 | lbs_deb_enter(LBS_DEB_SDIO); | |
317 | ||
b136a141 | 318 | size = if_sdio_read_rx_len(card, &ret); |
727c26ed PO |
319 | if (ret) |
320 | goto out; | |
321 | ||
322 | if (size < 4) { | |
323 | lbs_deb_sdio("invalid packet size (%d bytes) from firmware\n", | |
324 | (int)size); | |
325 | ret = -EINVAL; | |
326 | goto out; | |
327 | } | |
328 | ||
329 | timeout = jiffies + HZ; | |
330 | while (1) { | |
331 | status = sdio_readb(card->func, IF_SDIO_STATUS, &ret); | |
332 | if (ret) | |
333 | goto out; | |
334 | if (status & IF_SDIO_IO_RDY) | |
335 | break; | |
336 | if (time_after(jiffies, timeout)) { | |
337 | ret = -ETIMEDOUT; | |
338 | goto out; | |
339 | } | |
340 | mdelay(1); | |
341 | } | |
342 | ||
343 | /* | |
344 | * The transfer must be in one transaction or the firmware | |
ad3868b2 PO |
345 | * goes suicidal. There's no way to guarantee that for all |
346 | * controllers, but we can at least try. | |
727c26ed | 347 | */ |
ad3868b2 | 348 | chunk = sdio_align_size(card->func, size); |
727c26ed PO |
349 | |
350 | ret = sdio_readsb(card->func, card->buffer, card->ioport, chunk); | |
351 | if (ret) | |
352 | goto out; | |
353 | ||
354 | chunk = card->buffer[0] | (card->buffer[1] << 8); | |
355 | type = card->buffer[2] | (card->buffer[3] << 8); | |
356 | ||
357 | lbs_deb_sdio("packet of type %d and size %d bytes\n", | |
358 | (int)type, (int)chunk); | |
359 | ||
360 | if (chunk > size) { | |
361 | lbs_deb_sdio("packet fragment (%d > %d)\n", | |
362 | (int)chunk, (int)size); | |
363 | ret = -EINVAL; | |
364 | goto out; | |
365 | } | |
366 | ||
367 | if (chunk < size) { | |
368 | lbs_deb_sdio("packet fragment (%d < %d)\n", | |
369 | (int)chunk, (int)size); | |
370 | } | |
371 | ||
372 | switch (type) { | |
373 | case MVMS_CMD: | |
374 | ret = if_sdio_handle_cmd(card, card->buffer + 4, chunk - 4); | |
375 | if (ret) | |
376 | goto out; | |
377 | break; | |
378 | case MVMS_DAT: | |
379 | ret = if_sdio_handle_data(card, card->buffer + 4, chunk - 4); | |
380 | if (ret) | |
381 | goto out; | |
382 | break; | |
383 | case MVMS_EVENT: | |
384 | ret = if_sdio_handle_event(card, card->buffer + 4, chunk - 4); | |
385 | if (ret) | |
386 | goto out; | |
387 | break; | |
388 | default: | |
389 | lbs_deb_sdio("invalid type (%d) from firmware\n", | |
390 | (int)type); | |
391 | ret = -EINVAL; | |
392 | goto out; | |
393 | } | |
394 | ||
395 | out: | |
396 | if (ret) | |
397 | lbs_pr_err("problem fetching packet from firmware\n"); | |
398 | ||
399 | lbs_deb_leave_args(LBS_DEB_SDIO, "ret %d", ret); | |
400 | ||
401 | return ret; | |
402 | } | |
403 | ||
404 | static void if_sdio_host_to_card_worker(struct work_struct *work) | |
405 | { | |
406 | struct if_sdio_card *card; | |
407 | struct if_sdio_packet *packet; | |
408 | unsigned long timeout; | |
409 | u8 status; | |
410 | int ret; | |
411 | unsigned long flags; | |
412 | ||
413 | lbs_deb_enter(LBS_DEB_SDIO); | |
414 | ||
415 | card = container_of(work, struct if_sdio_card, packet_worker); | |
416 | ||
417 | while (1) { | |
418 | spin_lock_irqsave(&card->lock, flags); | |
419 | packet = card->packets; | |
420 | if (packet) | |
421 | card->packets = packet->next; | |
422 | spin_unlock_irqrestore(&card->lock, flags); | |
423 | ||
424 | if (!packet) | |
425 | break; | |
426 | ||
427 | sdio_claim_host(card->func); | |
428 | ||
429 | timeout = jiffies + HZ; | |
430 | while (1) { | |
431 | status = sdio_readb(card->func, IF_SDIO_STATUS, &ret); | |
432 | if (ret) | |
433 | goto release; | |
434 | if (status & IF_SDIO_IO_RDY) | |
435 | break; | |
436 | if (time_after(jiffies, timeout)) { | |
437 | ret = -ETIMEDOUT; | |
438 | goto release; | |
439 | } | |
440 | mdelay(1); | |
441 | } | |
442 | ||
443 | ret = sdio_writesb(card->func, card->ioport, | |
444 | packet->buffer, packet->nb); | |
445 | if (ret) | |
446 | goto release; | |
447 | release: | |
448 | sdio_release_host(card->func); | |
449 | ||
450 | kfree(packet); | |
451 | } | |
452 | ||
453 | lbs_deb_leave(LBS_DEB_SDIO); | |
454 | } | |
455 | ||
456 | /********************************************************************/ | |
457 | /* Firmware */ | |
458 | /********************************************************************/ | |
459 | ||
460 | static int if_sdio_prog_helper(struct if_sdio_card *card) | |
461 | { | |
462 | int ret; | |
463 | u8 status; | |
464 | const struct firmware *fw; | |
465 | unsigned long timeout; | |
466 | u8 *chunk_buffer; | |
467 | u32 chunk_size; | |
6dfff895 | 468 | const u8 *firmware; |
727c26ed PO |
469 | size_t size; |
470 | ||
471 | lbs_deb_enter(LBS_DEB_SDIO); | |
472 | ||
473 | ret = request_firmware(&fw, card->helper, &card->func->dev); | |
474 | if (ret) { | |
475 | lbs_pr_err("can't load helper firmware\n"); | |
476 | goto out; | |
477 | } | |
478 | ||
479 | chunk_buffer = kzalloc(64, GFP_KERNEL); | |
480 | if (!chunk_buffer) { | |
481 | ret = -ENOMEM; | |
482 | goto release_fw; | |
483 | } | |
484 | ||
485 | sdio_claim_host(card->func); | |
486 | ||
487 | ret = sdio_set_block_size(card->func, 32); | |
488 | if (ret) | |
489 | goto release; | |
490 | ||
491 | firmware = fw->data; | |
492 | size = fw->size; | |
493 | ||
494 | while (size) { | |
495 | timeout = jiffies + HZ; | |
496 | while (1) { | |
497 | status = sdio_readb(card->func, IF_SDIO_STATUS, &ret); | |
498 | if (ret) | |
499 | goto release; | |
500 | if ((status & IF_SDIO_IO_RDY) && | |
501 | (status & IF_SDIO_DL_RDY)) | |
502 | break; | |
503 | if (time_after(jiffies, timeout)) { | |
504 | ret = -ETIMEDOUT; | |
505 | goto release; | |
506 | } | |
507 | mdelay(1); | |
508 | } | |
509 | ||
510 | chunk_size = min(size, (size_t)60); | |
511 | ||
c2df2efe | 512 | *((__le32*)chunk_buffer) = cpu_to_le32(chunk_size); |
727c26ed PO |
513 | memcpy(chunk_buffer + 4, firmware, chunk_size); |
514 | /* | |
515 | lbs_deb_sdio("sending %d bytes chunk\n", chunk_size); | |
516 | */ | |
517 | ret = sdio_writesb(card->func, card->ioport, | |
518 | chunk_buffer, 64); | |
519 | if (ret) | |
520 | goto release; | |
521 | ||
522 | firmware += chunk_size; | |
523 | size -= chunk_size; | |
524 | } | |
525 | ||
526 | /* an empty block marks the end of the transfer */ | |
527 | memset(chunk_buffer, 0, 4); | |
528 | ret = sdio_writesb(card->func, card->ioport, chunk_buffer, 64); | |
529 | if (ret) | |
530 | goto release; | |
531 | ||
532 | lbs_deb_sdio("waiting for helper to boot...\n"); | |
533 | ||
534 | /* wait for the helper to boot by looking at the size register */ | |
535 | timeout = jiffies + HZ; | |
536 | while (1) { | |
537 | u16 req_size; | |
538 | ||
539 | req_size = sdio_readb(card->func, IF_SDIO_RD_BASE, &ret); | |
540 | if (ret) | |
541 | goto release; | |
542 | ||
543 | req_size |= sdio_readb(card->func, IF_SDIO_RD_BASE + 1, &ret) << 8; | |
544 | if (ret) | |
545 | goto release; | |
546 | ||
547 | if (req_size != 0) | |
548 | break; | |
549 | ||
550 | if (time_after(jiffies, timeout)) { | |
551 | ret = -ETIMEDOUT; | |
552 | goto release; | |
553 | } | |
554 | ||
555 | msleep(10); | |
556 | } | |
557 | ||
558 | ret = 0; | |
559 | ||
560 | release: | |
727c26ed PO |
561 | sdio_release_host(card->func); |
562 | kfree(chunk_buffer); | |
563 | release_fw: | |
564 | release_firmware(fw); | |
565 | ||
566 | out: | |
567 | if (ret) | |
568 | lbs_pr_err("failed to load helper firmware\n"); | |
569 | ||
570 | lbs_deb_leave_args(LBS_DEB_SDIO, "ret %d", ret); | |
571 | ||
572 | return ret; | |
573 | } | |
574 | ||
575 | static int if_sdio_prog_real(struct if_sdio_card *card) | |
576 | { | |
577 | int ret; | |
578 | u8 status; | |
579 | const struct firmware *fw; | |
580 | unsigned long timeout; | |
581 | u8 *chunk_buffer; | |
582 | u32 chunk_size; | |
6dfff895 | 583 | const u8 *firmware; |
727c26ed PO |
584 | size_t size, req_size; |
585 | ||
586 | lbs_deb_enter(LBS_DEB_SDIO); | |
587 | ||
588 | ret = request_firmware(&fw, card->firmware, &card->func->dev); | |
589 | if (ret) { | |
590 | lbs_pr_err("can't load firmware\n"); | |
591 | goto out; | |
592 | } | |
593 | ||
594 | chunk_buffer = kzalloc(512, GFP_KERNEL); | |
595 | if (!chunk_buffer) { | |
596 | ret = -ENOMEM; | |
597 | goto release_fw; | |
598 | } | |
599 | ||
600 | sdio_claim_host(card->func); | |
601 | ||
602 | ret = sdio_set_block_size(card->func, 32); | |
603 | if (ret) | |
604 | goto release; | |
605 | ||
606 | firmware = fw->data; | |
607 | size = fw->size; | |
608 | ||
609 | while (size) { | |
610 | timeout = jiffies + HZ; | |
611 | while (1) { | |
612 | status = sdio_readb(card->func, IF_SDIO_STATUS, &ret); | |
613 | if (ret) | |
614 | goto release; | |
615 | if ((status & IF_SDIO_IO_RDY) && | |
616 | (status & IF_SDIO_DL_RDY)) | |
617 | break; | |
618 | if (time_after(jiffies, timeout)) { | |
619 | ret = -ETIMEDOUT; | |
620 | goto release; | |
621 | } | |
622 | mdelay(1); | |
623 | } | |
624 | ||
625 | req_size = sdio_readb(card->func, IF_SDIO_RD_BASE, &ret); | |
626 | if (ret) | |
627 | goto release; | |
628 | ||
629 | req_size |= sdio_readb(card->func, IF_SDIO_RD_BASE + 1, &ret) << 8; | |
630 | if (ret) | |
631 | goto release; | |
632 | /* | |
633 | lbs_deb_sdio("firmware wants %d bytes\n", (int)req_size); | |
634 | */ | |
635 | if (req_size == 0) { | |
636 | lbs_deb_sdio("firmware helper gave up early\n"); | |
637 | ret = -EIO; | |
638 | goto release; | |
639 | } | |
640 | ||
641 | if (req_size & 0x01) { | |
642 | lbs_deb_sdio("firmware helper signalled error\n"); | |
643 | ret = -EIO; | |
644 | goto release; | |
645 | } | |
646 | ||
647 | if (req_size > size) | |
648 | req_size = size; | |
649 | ||
650 | while (req_size) { | |
651 | chunk_size = min(req_size, (size_t)512); | |
652 | ||
653 | memcpy(chunk_buffer, firmware, chunk_size); | |
654 | /* | |
655 | lbs_deb_sdio("sending %d bytes (%d bytes) chunk\n", | |
656 | chunk_size, (chunk_size + 31) / 32 * 32); | |
657 | */ | |
658 | ret = sdio_writesb(card->func, card->ioport, | |
23827926 | 659 | chunk_buffer, roundup(chunk_size, 32)); |
727c26ed PO |
660 | if (ret) |
661 | goto release; | |
662 | ||
663 | firmware += chunk_size; | |
664 | size -= chunk_size; | |
665 | req_size -= chunk_size; | |
666 | } | |
667 | } | |
668 | ||
669 | ret = 0; | |
670 | ||
671 | lbs_deb_sdio("waiting for firmware to boot...\n"); | |
672 | ||
673 | /* wait for the firmware to boot */ | |
674 | timeout = jiffies + HZ; | |
675 | while (1) { | |
676 | u16 scratch; | |
677 | ||
678 | scratch = if_sdio_read_scratch(card, &ret); | |
679 | if (ret) | |
680 | goto release; | |
681 | ||
682 | if (scratch == IF_SDIO_FIRMWARE_OK) | |
683 | break; | |
684 | ||
685 | if (time_after(jiffies, timeout)) { | |
686 | ret = -ETIMEDOUT; | |
687 | goto release; | |
688 | } | |
689 | ||
690 | msleep(10); | |
691 | } | |
692 | ||
693 | ret = 0; | |
694 | ||
695 | release: | |
727c26ed PO |
696 | sdio_release_host(card->func); |
697 | kfree(chunk_buffer); | |
698 | release_fw: | |
699 | release_firmware(fw); | |
700 | ||
701 | out: | |
702 | if (ret) | |
703 | lbs_pr_err("failed to load firmware\n"); | |
704 | ||
705 | lbs_deb_leave_args(LBS_DEB_SDIO, "ret %d", ret); | |
706 | ||
707 | return ret; | |
708 | } | |
709 | ||
710 | static int if_sdio_prog_firmware(struct if_sdio_card *card) | |
711 | { | |
712 | int ret; | |
713 | u16 scratch; | |
714 | ||
715 | lbs_deb_enter(LBS_DEB_SDIO); | |
716 | ||
717 | sdio_claim_host(card->func); | |
718 | scratch = if_sdio_read_scratch(card, &ret); | |
719 | sdio_release_host(card->func); | |
720 | ||
721 | if (ret) | |
722 | goto out; | |
723 | ||
2c7e5798 BZ |
724 | lbs_deb_sdio("firmware status = %#x\n", scratch); |
725 | ||
727c26ed PO |
726 | if (scratch == IF_SDIO_FIRMWARE_OK) { |
727 | lbs_deb_sdio("firmware already loaded\n"); | |
728 | goto success; | |
729 | } | |
730 | ||
731 | ret = if_sdio_prog_helper(card); | |
732 | if (ret) | |
733 | goto out; | |
734 | ||
735 | ret = if_sdio_prog_real(card); | |
736 | if (ret) | |
737 | goto out; | |
738 | ||
739 | success: | |
d26285f8 BZ |
740 | sdio_claim_host(card->func); |
741 | sdio_set_block_size(card->func, IF_SDIO_BLOCK_SIZE); | |
742 | sdio_release_host(card->func); | |
727c26ed PO |
743 | ret = 0; |
744 | ||
745 | out: | |
746 | lbs_deb_leave_args(LBS_DEB_SDIO, "ret %d", ret); | |
747 | ||
748 | return ret; | |
749 | } | |
750 | ||
751 | /*******************************************************************/ | |
752 | /* Libertas callbacks */ | |
753 | /*******************************************************************/ | |
754 | ||
69f9032d HS |
755 | static int if_sdio_host_to_card(struct lbs_private *priv, |
756 | u8 type, u8 *buf, u16 nb) | |
727c26ed PO |
757 | { |
758 | int ret; | |
759 | struct if_sdio_card *card; | |
760 | struct if_sdio_packet *packet, *cur; | |
761 | u16 size; | |
762 | unsigned long flags; | |
763 | ||
764 | lbs_deb_enter_args(LBS_DEB_SDIO, "type %d, bytes %d", type, nb); | |
765 | ||
766 | card = priv->card; | |
767 | ||
768 | if (nb > (65536 - sizeof(struct if_sdio_packet) - 4)) { | |
769 | ret = -EINVAL; | |
770 | goto out; | |
771 | } | |
772 | ||
773 | /* | |
774 | * The transfer must be in one transaction or the firmware | |
ad3868b2 PO |
775 | * goes suicidal. There's no way to guarantee that for all |
776 | * controllers, but we can at least try. | |
727c26ed | 777 | */ |
ad3868b2 | 778 | size = sdio_align_size(card->func, nb + 4); |
727c26ed PO |
779 | |
780 | packet = kzalloc(sizeof(struct if_sdio_packet) + size, | |
781 | GFP_ATOMIC); | |
782 | if (!packet) { | |
783 | ret = -ENOMEM; | |
784 | goto out; | |
785 | } | |
786 | ||
787 | packet->next = NULL; | |
788 | packet->nb = size; | |
789 | ||
790 | /* | |
791 | * SDIO specific header. | |
792 | */ | |
793 | packet->buffer[0] = (nb + 4) & 0xff; | |
794 | packet->buffer[1] = ((nb + 4) >> 8) & 0xff; | |
795 | packet->buffer[2] = type; | |
796 | packet->buffer[3] = 0; | |
797 | ||
798 | memcpy(packet->buffer + 4, buf, nb); | |
799 | ||
800 | spin_lock_irqsave(&card->lock, flags); | |
801 | ||
802 | if (!card->packets) | |
803 | card->packets = packet; | |
804 | else { | |
805 | cur = card->packets; | |
806 | while (cur->next) | |
807 | cur = cur->next; | |
808 | cur->next = packet; | |
809 | } | |
810 | ||
811 | switch (type) { | |
812 | case MVMS_CMD: | |
813 | priv->dnld_sent = DNLD_CMD_SENT; | |
814 | break; | |
815 | case MVMS_DAT: | |
816 | priv->dnld_sent = DNLD_DATA_SENT; | |
817 | break; | |
818 | default: | |
819 | lbs_deb_sdio("unknown packet type %d\n", (int)type); | |
820 | } | |
821 | ||
822 | spin_unlock_irqrestore(&card->lock, flags); | |
823 | ||
9b02f419 | 824 | queue_work(card->workqueue, &card->packet_worker); |
727c26ed PO |
825 | |
826 | ret = 0; | |
827 | ||
828 | out: | |
829 | lbs_deb_leave_args(LBS_DEB_SDIO, "ret %d", ret); | |
830 | ||
831 | return ret; | |
832 | } | |
833 | ||
49125454 AK |
834 | static int if_sdio_enter_deep_sleep(struct lbs_private *priv) |
835 | { | |
836 | int ret = -1; | |
837 | struct cmd_header cmd; | |
838 | ||
839 | memset(&cmd, 0, sizeof(cmd)); | |
840 | ||
841 | lbs_deb_sdio("send DEEP_SLEEP command\n"); | |
842 | ret = __lbs_cmd(priv, CMD_802_11_DEEP_SLEEP, &cmd, sizeof(cmd), | |
843 | lbs_cmd_copyback, (unsigned long) &cmd); | |
844 | if (ret) | |
845 | lbs_pr_err("DEEP_SLEEP cmd failed\n"); | |
846 | ||
847 | mdelay(200); | |
848 | return ret; | |
849 | } | |
850 | ||
851 | static int if_sdio_exit_deep_sleep(struct lbs_private *priv) | |
852 | { | |
853 | struct if_sdio_card *card = priv->card; | |
854 | int ret = -1; | |
855 | ||
856 | lbs_deb_enter(LBS_DEB_SDIO); | |
857 | sdio_claim_host(card->func); | |
858 | ||
859 | sdio_writeb(card->func, HOST_POWER_UP, CONFIGURATION_REG, &ret); | |
860 | if (ret) | |
861 | lbs_pr_err("sdio_writeb failed!\n"); | |
862 | ||
863 | sdio_release_host(card->func); | |
864 | lbs_deb_leave_args(LBS_DEB_SDIO, "ret %d", ret); | |
865 | return ret; | |
866 | } | |
867 | ||
868 | static int if_sdio_reset_deep_sleep_wakeup(struct lbs_private *priv) | |
869 | { | |
870 | struct if_sdio_card *card = priv->card; | |
871 | int ret = -1; | |
872 | ||
873 | lbs_deb_enter(LBS_DEB_SDIO); | |
874 | sdio_claim_host(card->func); | |
875 | ||
876 | sdio_writeb(card->func, 0, CONFIGURATION_REG, &ret); | |
877 | if (ret) | |
878 | lbs_pr_err("sdio_writeb failed!\n"); | |
879 | ||
880 | sdio_release_host(card->func); | |
881 | lbs_deb_leave_args(LBS_DEB_SDIO, "ret %d", ret); | |
882 | return ret; | |
883 | ||
884 | } | |
885 | ||
727c26ed PO |
886 | /*******************************************************************/ |
887 | /* SDIO callbacks */ | |
888 | /*******************************************************************/ | |
889 | ||
890 | static void if_sdio_interrupt(struct sdio_func *func) | |
891 | { | |
892 | int ret; | |
893 | struct if_sdio_card *card; | |
894 | u8 cause; | |
895 | ||
896 | lbs_deb_enter(LBS_DEB_SDIO); | |
897 | ||
898 | card = sdio_get_drvdata(func); | |
899 | ||
900 | cause = sdio_readb(card->func, IF_SDIO_H_INT_STATUS, &ret); | |
901 | if (ret) | |
902 | goto out; | |
903 | ||
904 | lbs_deb_sdio("interrupt: 0x%X\n", (unsigned)cause); | |
905 | ||
906 | sdio_writeb(card->func, ~cause, IF_SDIO_H_INT_STATUS, &ret); | |
907 | if (ret) | |
908 | goto out; | |
909 | ||
910 | /* | |
911 | * Ignore the define name, this really means the card has | |
912 | * successfully received the command. | |
913 | */ | |
49125454 | 914 | card->priv->is_activity_detected = 1; |
e775ed7c DW |
915 | if (cause & IF_SDIO_H_INT_DNLD) |
916 | lbs_host_to_card_done(card->priv); | |
917 | ||
727c26ed PO |
918 | |
919 | if (cause & IF_SDIO_H_INT_UPLD) { | |
920 | ret = if_sdio_card_to_host(card); | |
921 | if (ret) | |
922 | goto out; | |
923 | } | |
924 | ||
925 | ret = 0; | |
926 | ||
927 | out: | |
928 | lbs_deb_leave_args(LBS_DEB_SDIO, "ret %d", ret); | |
929 | } | |
930 | ||
931 | static int if_sdio_probe(struct sdio_func *func, | |
932 | const struct sdio_device_id *id) | |
933 | { | |
934 | struct if_sdio_card *card; | |
69f9032d | 935 | struct lbs_private *priv; |
727c26ed PO |
936 | int ret, i; |
937 | unsigned int model; | |
938 | struct if_sdio_packet *packet; | |
939 | ||
940 | lbs_deb_enter(LBS_DEB_SDIO); | |
941 | ||
942 | for (i = 0;i < func->card->num_info;i++) { | |
943 | if (sscanf(func->card->info[i], | |
944 | "802.11 SDIO ID: %x", &model) == 1) | |
945 | break; | |
946 | if (sscanf(func->card->info[i], | |
947 | "ID: %x", &model) == 1) | |
948 | break; | |
e70a5ac5 BZ |
949 | if (!strcmp(func->card->info[i], "IBIS Wireless SDIO Card")) { |
950 | model = IF_SDIO_MODEL_8385; | |
951 | break; | |
952 | } | |
727c26ed PO |
953 | } |
954 | ||
955 | if (i == func->card->num_info) { | |
956 | lbs_pr_err("unable to identify card model\n"); | |
957 | return -ENODEV; | |
958 | } | |
959 | ||
960 | card = kzalloc(sizeof(struct if_sdio_card), GFP_KERNEL); | |
961 | if (!card) | |
962 | return -ENOMEM; | |
963 | ||
964 | card->func = func; | |
965 | card->model = model; | |
2c7e5798 BZ |
966 | |
967 | switch (card->model) { | |
968 | case IF_SDIO_MODEL_8385: | |
969 | card->scratch_reg = IF_SDIO_SCRATCH_OLD; | |
970 | break; | |
971 | case IF_SDIO_MODEL_8686: | |
972 | card->scratch_reg = IF_SDIO_SCRATCH; | |
973 | break; | |
974 | case IF_SDIO_MODEL_8688: | |
975 | default: /* for newer chipsets */ | |
976 | card->scratch_reg = IF_SDIO_FW_STATUS; | |
977 | break; | |
978 | } | |
979 | ||
727c26ed | 980 | spin_lock_init(&card->lock); |
9b02f419 | 981 | card->workqueue = create_workqueue("libertas_sdio"); |
727c26ed PO |
982 | INIT_WORK(&card->packet_worker, if_sdio_host_to_card_worker); |
983 | ||
984 | for (i = 0;i < ARRAY_SIZE(if_sdio_models);i++) { | |
985 | if (card->model == if_sdio_models[i].model) | |
986 | break; | |
987 | } | |
988 | ||
989 | if (i == ARRAY_SIZE(if_sdio_models)) { | |
990 | lbs_pr_err("unkown card model 0x%x\n", card->model); | |
991 | ret = -ENODEV; | |
992 | goto free; | |
993 | } | |
994 | ||
995 | card->helper = if_sdio_models[i].helper; | |
996 | card->firmware = if_sdio_models[i].firmware; | |
997 | ||
10078321 | 998 | if (lbs_helper_name) { |
727c26ed | 999 | lbs_deb_sdio("overriding helper firmware: %s\n", |
10078321 HS |
1000 | lbs_helper_name); |
1001 | card->helper = lbs_helper_name; | |
727c26ed PO |
1002 | } |
1003 | ||
10078321 HS |
1004 | if (lbs_fw_name) { |
1005 | lbs_deb_sdio("overriding firmware: %s\n", lbs_fw_name); | |
1006 | card->firmware = lbs_fw_name; | |
727c26ed PO |
1007 | } |
1008 | ||
1009 | sdio_claim_host(func); | |
1010 | ||
1011 | ret = sdio_enable_func(func); | |
1012 | if (ret) | |
1013 | goto release; | |
1014 | ||
1015 | ret = sdio_claim_irq(func, if_sdio_interrupt); | |
1016 | if (ret) | |
1017 | goto disable; | |
1018 | ||
1019 | card->ioport = sdio_readb(func, IF_SDIO_IOPORT, &ret); | |
1020 | if (ret) | |
1021 | goto release_int; | |
1022 | ||
1023 | card->ioport |= sdio_readb(func, IF_SDIO_IOPORT + 1, &ret) << 8; | |
1024 | if (ret) | |
1025 | goto release_int; | |
1026 | ||
1027 | card->ioport |= sdio_readb(func, IF_SDIO_IOPORT + 2, &ret) << 16; | |
1028 | if (ret) | |
1029 | goto release_int; | |
1030 | ||
1031 | sdio_release_host(func); | |
1032 | ||
1033 | sdio_set_drvdata(func, card); | |
1034 | ||
1035 | lbs_deb_sdio("class = 0x%X, vendor = 0x%X, " | |
1036 | "device = 0x%X, model = 0x%X, ioport = 0x%X\n", | |
1037 | func->class, func->vendor, func->device, | |
1038 | model, (unsigned)card->ioport); | |
1039 | ||
1040 | ret = if_sdio_prog_firmware(card); | |
1041 | if (ret) | |
1042 | goto reclaim; | |
1043 | ||
10078321 | 1044 | priv = lbs_add_card(card, &func->dev); |
727c26ed PO |
1045 | if (!priv) { |
1046 | ret = -ENOMEM; | |
1047 | goto reclaim; | |
1048 | } | |
1049 | ||
1050 | card->priv = priv; | |
1051 | ||
1052 | priv->card = card; | |
1053 | priv->hw_host_to_card = if_sdio_host_to_card; | |
49125454 AK |
1054 | priv->enter_deep_sleep = if_sdio_enter_deep_sleep; |
1055 | priv->exit_deep_sleep = if_sdio_exit_deep_sleep; | |
1056 | priv->reset_deep_sleep_wakeup = if_sdio_reset_deep_sleep_wakeup; | |
727c26ed | 1057 | |
aa21c004 | 1058 | priv->fw_ready = 1; |
727c26ed | 1059 | |
b136a141 BZ |
1060 | sdio_claim_host(func); |
1061 | ||
1062 | /* | |
1063 | * Get rx_unit if the chip is SD8688 or newer. | |
1064 | * SD8385 & SD8686 do not have rx_unit. | |
1065 | */ | |
1066 | if ((card->model != IF_SDIO_MODEL_8385) | |
1067 | && (card->model != IF_SDIO_MODEL_8686)) | |
1068 | card->rx_unit = if_sdio_read_rx_unit(card); | |
1069 | else | |
1070 | card->rx_unit = 0; | |
1071 | ||
727c26ed PO |
1072 | /* |
1073 | * Enable interrupts now that everything is set up | |
1074 | */ | |
727c26ed PO |
1075 | sdio_writeb(func, 0x0f, IF_SDIO_H_INT_MASK, &ret); |
1076 | sdio_release_host(func); | |
1077 | if (ret) | |
1078 | goto reclaim; | |
1079 | ||
d26285f8 BZ |
1080 | /* |
1081 | * FUNC_INIT is required for SD8688 WLAN/BT multiple functions | |
1082 | */ | |
6bc61f4d BZ |
1083 | if (card->model == IF_SDIO_MODEL_8688) { |
1084 | struct cmd_header cmd; | |
1085 | ||
1086 | memset(&cmd, 0, sizeof(cmd)); | |
1087 | ||
1088 | lbs_deb_sdio("send function INIT command\n"); | |
1089 | if (__lbs_cmd(priv, CMD_FUNC_INIT, &cmd, sizeof(cmd), | |
1090 | lbs_cmd_copyback, (unsigned long) &cmd)) | |
1091 | lbs_pr_alert("CMD_FUNC_INIT cmd failed\n"); | |
1092 | } | |
d26285f8 | 1093 | |
10078321 | 1094 | ret = lbs_start_card(priv); |
727c26ed PO |
1095 | if (ret) |
1096 | goto err_activate_card; | |
1097 | ||
1098 | out: | |
1099 | lbs_deb_leave_args(LBS_DEB_SDIO, "ret %d", ret); | |
1100 | ||
1101 | return ret; | |
1102 | ||
1103 | err_activate_card: | |
9b02f419 DW |
1104 | flush_workqueue(card->workqueue); |
1105 | lbs_remove_card(priv); | |
727c26ed PO |
1106 | reclaim: |
1107 | sdio_claim_host(func); | |
1108 | release_int: | |
1109 | sdio_release_irq(func); | |
1110 | disable: | |
1111 | sdio_disable_func(func); | |
1112 | release: | |
1113 | sdio_release_host(func); | |
1114 | free: | |
9b02f419 | 1115 | destroy_workqueue(card->workqueue); |
727c26ed PO |
1116 | while (card->packets) { |
1117 | packet = card->packets; | |
1118 | card->packets = card->packets->next; | |
1119 | kfree(packet); | |
1120 | } | |
1121 | ||
1122 | kfree(card); | |
1123 | ||
1124 | goto out; | |
1125 | } | |
1126 | ||
1127 | static void if_sdio_remove(struct sdio_func *func) | |
1128 | { | |
1129 | struct if_sdio_card *card; | |
1130 | struct if_sdio_packet *packet; | |
1131 | ||
1132 | lbs_deb_enter(LBS_DEB_SDIO); | |
1133 | ||
1134 | card = sdio_get_drvdata(func); | |
1135 | ||
6bc61f4d BZ |
1136 | if (user_rmmod && (card->model == IF_SDIO_MODEL_8688)) { |
1137 | /* | |
1138 | * FUNC_SHUTDOWN is required for SD8688 WLAN/BT | |
1139 | * multiple functions | |
1140 | */ | |
1141 | struct cmd_header cmd; | |
1142 | ||
1143 | memset(&cmd, 0, sizeof(cmd)); | |
1144 | ||
1145 | lbs_deb_sdio("send function SHUTDOWN command\n"); | |
1146 | if (__lbs_cmd(card->priv, CMD_FUNC_SHUTDOWN, | |
1147 | &cmd, sizeof(cmd), lbs_cmd_copyback, | |
1148 | (unsigned long) &cmd)) | |
1149 | lbs_pr_alert("CMD_FUNC_SHUTDOWN cmd failed\n"); | |
1150 | } | |
d26285f8 | 1151 | |
727c26ed PO |
1152 | |
1153 | lbs_deb_sdio("call remove card\n"); | |
6bc61f4d | 1154 | lbs_stop_card(card->priv); |
10078321 | 1155 | lbs_remove_card(card->priv); |
23b149c1 | 1156 | card->priv->surpriseremoved = 1; |
727c26ed | 1157 | |
9b02f419 DW |
1158 | flush_workqueue(card->workqueue); |
1159 | destroy_workqueue(card->workqueue); | |
727c26ed PO |
1160 | |
1161 | sdio_claim_host(func); | |
1162 | sdio_release_irq(func); | |
1163 | sdio_disable_func(func); | |
1164 | sdio_release_host(func); | |
1165 | ||
1166 | while (card->packets) { | |
1167 | packet = card->packets; | |
1168 | card->packets = card->packets->next; | |
1169 | kfree(packet); | |
1170 | } | |
1171 | ||
1172 | kfree(card); | |
1173 | ||
1174 | lbs_deb_leave(LBS_DEB_SDIO); | |
1175 | } | |
1176 | ||
1177 | static struct sdio_driver if_sdio_driver = { | |
1178 | .name = "libertas_sdio", | |
1179 | .id_table = if_sdio_ids, | |
1180 | .probe = if_sdio_probe, | |
1181 | .remove = if_sdio_remove, | |
1182 | }; | |
1183 | ||
1184 | /*******************************************************************/ | |
1185 | /* Module functions */ | |
1186 | /*******************************************************************/ | |
1187 | ||
4fb910fd | 1188 | static int __init if_sdio_init_module(void) |
727c26ed PO |
1189 | { |
1190 | int ret = 0; | |
1191 | ||
1192 | lbs_deb_enter(LBS_DEB_SDIO); | |
1193 | ||
1194 | printk(KERN_INFO "libertas_sdio: Libertas SDIO driver\n"); | |
1195 | printk(KERN_INFO "libertas_sdio: Copyright Pierre Ossman\n"); | |
1196 | ||
1197 | ret = sdio_register_driver(&if_sdio_driver); | |
1198 | ||
6bc61f4d BZ |
1199 | /* Clear the flag in case user removes the card. */ |
1200 | user_rmmod = 0; | |
1201 | ||
727c26ed PO |
1202 | lbs_deb_leave_args(LBS_DEB_SDIO, "ret %d", ret); |
1203 | ||
1204 | return ret; | |
1205 | } | |
1206 | ||
4fb910fd | 1207 | static void __exit if_sdio_exit_module(void) |
727c26ed PO |
1208 | { |
1209 | lbs_deb_enter(LBS_DEB_SDIO); | |
1210 | ||
6bc61f4d BZ |
1211 | /* Set the flag as user is removing this module. */ |
1212 | user_rmmod = 1; | |
d26285f8 | 1213 | |
727c26ed PO |
1214 | sdio_unregister_driver(&if_sdio_driver); |
1215 | ||
1216 | lbs_deb_leave(LBS_DEB_SDIO); | |
1217 | } | |
1218 | ||
1219 | module_init(if_sdio_init_module); | |
1220 | module_exit(if_sdio_exit_module); | |
1221 | ||
1222 | MODULE_DESCRIPTION("Libertas SDIO WLAN Driver"); | |
1223 | MODULE_AUTHOR("Pierre Ossman"); | |
1224 | MODULE_LICENSE("GPL"); |