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789221ec BZ |
1 | /** |
2 | * Marvell BT-over-SDIO driver: SDIO interface related functions. | |
3 | * | |
4 | * Copyright (C) 2009, Marvell International Ltd. | |
5 | * | |
6 | * This software file (the "File") is distributed by Marvell International | |
7 | * Ltd. under the terms of the GNU General Public License Version 2, June 1991 | |
8 | * (the "License"). You may use, redistribute and/or modify this File in | |
9 | * accordance with the terms and conditions of the License, a copy of which | |
10 | * is available by writing to the Free Software Foundation, Inc., | |
11 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the | |
12 | * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt. | |
13 | * | |
14 | * | |
15 | * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE | |
16 | * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE | |
17 | * ARE EXPRESSLY DISCLAIMED. The License provides additional details about | |
18 | * this warranty disclaimer. | |
19 | **/ | |
20 | ||
21 | #include <linux/firmware.h> | |
5a0e3ad6 | 22 | #include <linux/slab.h> |
789221ec BZ |
23 | |
24 | #include <linux/mmc/sdio_ids.h> | |
25 | #include <linux/mmc/sdio_func.h> | |
a59b968e | 26 | #include <linux/module.h> |
789221ec BZ |
27 | |
28 | #include <net/bluetooth/bluetooth.h> | |
29 | #include <net/bluetooth/hci_core.h> | |
30 | ||
31 | #include "btmrvl_drv.h" | |
32 | #include "btmrvl_sdio.h" | |
33 | ||
34 | #define VERSION "1.0" | |
35 | ||
789221ec BZ |
36 | /* The btmrvl_sdio_remove() callback function is called |
37 | * when user removes this module from kernel space or ejects | |
38 | * the card from the slot. The driver handles these 2 cases | |
39 | * differently. | |
40 | * If the user is removing the module, a MODULE_SHUTDOWN_REQ | |
41 | * command is sent to firmware and interrupt will be disabled. | |
42 | * If the card is removed, there is no need to send command | |
43 | * or disable interrupt. | |
44 | * | |
45 | * The variable 'user_rmmod' is used to distinguish these two | |
46 | * scenarios. This flag is initialized as FALSE in case the card | |
47 | * is removed, and will be set to TRUE for module removal when | |
48 | * module_exit function is called. | |
49 | */ | |
50 | static u8 user_rmmod; | |
d1d10d78 | 51 | static u8 sdio_ireg; |
789221ec | 52 | |
9f72c1d9 KG |
53 | static const struct btmrvl_sdio_card_reg btmrvl_reg_8688 = { |
54 | .cfg = 0x03, | |
55 | .host_int_mask = 0x04, | |
56 | .host_intstatus = 0x05, | |
57 | .card_status = 0x20, | |
58 | .sq_read_base_addr_a0 = 0x10, | |
59 | .sq_read_base_addr_a1 = 0x11, | |
60 | .card_fw_status0 = 0x40, | |
61 | .card_fw_status1 = 0x41, | |
62 | .card_rx_len = 0x42, | |
63 | .card_rx_unit = 0x43, | |
64 | .io_port_0 = 0x00, | |
65 | .io_port_1 = 0x01, | |
66 | .io_port_2 = 0x02, | |
67 | }; | |
2ac654f7 | 68 | static const struct btmrvl_sdio_card_reg btmrvl_reg_87xx = { |
9f72c1d9 KG |
69 | .cfg = 0x00, |
70 | .host_int_mask = 0x02, | |
71 | .host_intstatus = 0x03, | |
72 | .card_status = 0x30, | |
73 | .sq_read_base_addr_a0 = 0x40, | |
74 | .sq_read_base_addr_a1 = 0x41, | |
75 | .card_revision = 0x5c, | |
76 | .card_fw_status0 = 0x60, | |
77 | .card_fw_status1 = 0x61, | |
78 | .card_rx_len = 0x62, | |
79 | .card_rx_unit = 0x63, | |
80 | .io_port_0 = 0x78, | |
81 | .io_port_1 = 0x79, | |
82 | .io_port_2 = 0x7a, | |
83 | }; | |
84 | ||
c675786a | 85 | static const struct btmrvl_sdio_device btmrvl_sdio_sd8688 = { |
dcf47f3b MH |
86 | .helper = "sd8688_helper.bin", |
87 | .firmware = "sd8688.bin", | |
9f72c1d9 KG |
88 | .reg = &btmrvl_reg_8688, |
89 | .sd_blksz_fw_dl = 64, | |
90 | }; | |
91 | ||
92 | static const struct btmrvl_sdio_device btmrvl_sdio_sd8787 = { | |
93 | .helper = NULL, | |
94 | .firmware = "mrvl/sd8787_uapsta.bin", | |
2ac654f7 BZ |
95 | .reg = &btmrvl_reg_87xx, |
96 | .sd_blksz_fw_dl = 256, | |
97 | }; | |
98 | ||
99 | static const struct btmrvl_sdio_device btmrvl_sdio_sd8797 = { | |
100 | .helper = NULL, | |
101 | .firmware = "mrvl/sd8797_uapsta.bin", | |
102 | .reg = &btmrvl_reg_87xx, | |
9f72c1d9 | 103 | .sd_blksz_fw_dl = 256, |
789221ec BZ |
104 | }; |
105 | ||
dcf47f3b MH |
106 | static const struct sdio_device_id btmrvl_sdio_ids[] = { |
107 | /* Marvell SD8688 Bluetooth device */ | |
108 | { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x9105), | |
c675786a | 109 | .driver_data = (unsigned long) &btmrvl_sdio_sd8688 }, |
9f72c1d9 KG |
110 | /* Marvell SD8787 Bluetooth device */ |
111 | { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x911A), | |
112 | .driver_data = (unsigned long) &btmrvl_sdio_sd8787 }, | |
37ed561e BZ |
113 | /* Marvell SD8787 Bluetooth AMP device */ |
114 | { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x911B), | |
115 | .driver_data = (unsigned long) &btmrvl_sdio_sd8787 }, | |
2ac654f7 BZ |
116 | /* Marvell SD8797 Bluetooth device */ |
117 | { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x912A), | |
118 | .driver_data = (unsigned long) &btmrvl_sdio_sd8797 }, | |
789221ec | 119 | |
dcf47f3b | 120 | { } /* Terminating entry */ |
789221ec BZ |
121 | }; |
122 | ||
dcf47f3b MH |
123 | MODULE_DEVICE_TABLE(sdio, btmrvl_sdio_ids); |
124 | ||
789221ec BZ |
125 | static int btmrvl_sdio_get_rx_unit(struct btmrvl_sdio_card *card) |
126 | { | |
127 | u8 reg; | |
128 | int ret; | |
129 | ||
9f72c1d9 | 130 | reg = sdio_readb(card->func, card->reg->card_rx_unit, &ret); |
789221ec BZ |
131 | if (!ret) |
132 | card->rx_unit = reg; | |
133 | ||
789221ec BZ |
134 | return ret; |
135 | } | |
136 | ||
137 | static int btmrvl_sdio_read_fw_status(struct btmrvl_sdio_card *card, u16 *dat) | |
138 | { | |
789221ec | 139 | u8 fws0, fws1; |
9374253f | 140 | int ret; |
789221ec BZ |
141 | |
142 | *dat = 0; | |
143 | ||
9f72c1d9 | 144 | fws0 = sdio_readb(card->func, card->reg->card_fw_status0, &ret); |
278be27f KV |
145 | if (ret) |
146 | return -EIO; | |
789221ec | 147 | |
9f72c1d9 | 148 | fws1 = sdio_readb(card->func, card->reg->card_fw_status1, &ret); |
9374253f | 149 | if (ret) |
789221ec | 150 | return -EIO; |
789221ec BZ |
151 | |
152 | *dat = (((u16) fws1) << 8) | fws0; | |
153 | ||
789221ec BZ |
154 | return 0; |
155 | } | |
156 | ||
157 | static int btmrvl_sdio_read_rx_len(struct btmrvl_sdio_card *card, u16 *dat) | |
158 | { | |
789221ec | 159 | u8 reg; |
9374253f | 160 | int ret; |
789221ec | 161 | |
9f72c1d9 | 162 | reg = sdio_readb(card->func, card->reg->card_rx_len, &ret); |
789221ec BZ |
163 | if (!ret) |
164 | *dat = (u16) reg << card->rx_unit; | |
165 | ||
789221ec BZ |
166 | return ret; |
167 | } | |
168 | ||
169 | static int btmrvl_sdio_enable_host_int_mask(struct btmrvl_sdio_card *card, | |
dcf47f3b | 170 | u8 mask) |
789221ec BZ |
171 | { |
172 | int ret; | |
173 | ||
9f72c1d9 | 174 | sdio_writeb(card->func, mask, card->reg->host_int_mask, &ret); |
789221ec BZ |
175 | if (ret) { |
176 | BT_ERR("Unable to enable the host interrupt!"); | |
177 | ret = -EIO; | |
178 | } | |
179 | ||
789221ec BZ |
180 | return ret; |
181 | } | |
182 | ||
183 | static int btmrvl_sdio_disable_host_int_mask(struct btmrvl_sdio_card *card, | |
dcf47f3b | 184 | u8 mask) |
789221ec | 185 | { |
789221ec | 186 | u8 host_int_mask; |
9374253f | 187 | int ret; |
789221ec | 188 | |
9f72c1d9 | 189 | host_int_mask = sdio_readb(card->func, card->reg->host_int_mask, &ret); |
9374253f MH |
190 | if (ret) |
191 | return -EIO; | |
789221ec BZ |
192 | |
193 | host_int_mask &= ~mask; | |
194 | ||
9f72c1d9 | 195 | sdio_writeb(card->func, host_int_mask, card->reg->host_int_mask, &ret); |
789221ec BZ |
196 | if (ret < 0) { |
197 | BT_ERR("Unable to disable the host interrupt!"); | |
9374253f | 198 | return -EIO; |
789221ec BZ |
199 | } |
200 | ||
9374253f | 201 | return 0; |
789221ec BZ |
202 | } |
203 | ||
204 | static int btmrvl_sdio_poll_card_status(struct btmrvl_sdio_card *card, u8 bits) | |
205 | { | |
206 | unsigned int tries; | |
789221ec | 207 | u8 status; |
9374253f | 208 | int ret; |
789221ec BZ |
209 | |
210 | for (tries = 0; tries < MAX_POLL_TRIES * 1000; tries++) { | |
9f72c1d9 | 211 | status = sdio_readb(card->func, card->reg->card_status, &ret); |
789221ec BZ |
212 | if (ret) |
213 | goto failed; | |
214 | if ((status & bits) == bits) | |
9374253f | 215 | return ret; |
789221ec BZ |
216 | |
217 | udelay(1); | |
218 | } | |
219 | ||
220 | ret = -ETIMEDOUT; | |
221 | ||
222 | failed: | |
223 | BT_ERR("FAILED! ret=%d", ret); | |
224 | ||
789221ec BZ |
225 | return ret; |
226 | } | |
227 | ||
228 | static int btmrvl_sdio_verify_fw_download(struct btmrvl_sdio_card *card, | |
dcf47f3b | 229 | int pollnum) |
789221ec BZ |
230 | { |
231 | int ret = -ETIMEDOUT; | |
232 | u16 firmwarestat; | |
233 | unsigned int tries; | |
234 | ||
789221ec BZ |
235 | /* Wait for firmware to become ready */ |
236 | for (tries = 0; tries < pollnum; tries++) { | |
237 | if (btmrvl_sdio_read_fw_status(card, &firmwarestat) < 0) | |
238 | continue; | |
239 | ||
240 | if (firmwarestat == FIRMWARE_READY) { | |
241 | ret = 0; | |
242 | break; | |
243 | } else { | |
244 | msleep(10); | |
245 | } | |
246 | } | |
247 | ||
789221ec BZ |
248 | return ret; |
249 | } | |
250 | ||
251 | static int btmrvl_sdio_download_helper(struct btmrvl_sdio_card *card) | |
252 | { | |
253 | const struct firmware *fw_helper = NULL; | |
254 | const u8 *helper = NULL; | |
255 | int ret; | |
256 | void *tmphlprbuf = NULL; | |
257 | int tmphlprbufsz, hlprblknow, helperlen; | |
258 | u8 *helperbuf; | |
259 | u32 tx_len; | |
260 | ||
789221ec | 261 | ret = request_firmware(&fw_helper, card->helper, |
dcf47f3b | 262 | &card->func->dev); |
789221ec BZ |
263 | if ((ret < 0) || !fw_helper) { |
264 | BT_ERR("request_firmware(helper) failed, error code = %d", | |
dcf47f3b | 265 | ret); |
789221ec BZ |
266 | ret = -ENOENT; |
267 | goto done; | |
268 | } | |
269 | ||
270 | helper = fw_helper->data; | |
271 | helperlen = fw_helper->size; | |
272 | ||
273 | BT_DBG("Downloading helper image (%d bytes), block size %d bytes", | |
dcf47f3b | 274 | helperlen, SDIO_BLOCK_SIZE); |
789221ec BZ |
275 | |
276 | tmphlprbufsz = ALIGN_SZ(BTM_UPLD_SIZE, BTSDIO_DMA_ALIGN); | |
277 | ||
f8df39f1 | 278 | tmphlprbuf = kzalloc(tmphlprbufsz, GFP_KERNEL); |
789221ec BZ |
279 | if (!tmphlprbuf) { |
280 | BT_ERR("Unable to allocate buffer for helper." | |
281 | " Terminating download"); | |
282 | ret = -ENOMEM; | |
283 | goto done; | |
284 | } | |
285 | ||
789221ec BZ |
286 | helperbuf = (u8 *) ALIGN_ADDR(tmphlprbuf, BTSDIO_DMA_ALIGN); |
287 | ||
288 | /* Perform helper data transfer */ | |
289 | tx_len = (FIRMWARE_TRANSFER_NBLOCK * SDIO_BLOCK_SIZE) | |
290 | - SDIO_HEADER_LEN; | |
291 | hlprblknow = 0; | |
292 | ||
293 | do { | |
294 | ret = btmrvl_sdio_poll_card_status(card, | |
295 | CARD_IO_READY | DN_LD_CARD_RDY); | |
296 | if (ret < 0) { | |
297 | BT_ERR("Helper download poll status timeout @ %d", | |
298 | hlprblknow); | |
299 | goto done; | |
300 | } | |
301 | ||
302 | /* Check if there is more data? */ | |
303 | if (hlprblknow >= helperlen) | |
304 | break; | |
305 | ||
306 | if (helperlen - hlprblknow < tx_len) | |
307 | tx_len = helperlen - hlprblknow; | |
308 | ||
309 | /* Little-endian */ | |
310 | helperbuf[0] = ((tx_len & 0x000000ff) >> 0); | |
311 | helperbuf[1] = ((tx_len & 0x0000ff00) >> 8); | |
312 | helperbuf[2] = ((tx_len & 0x00ff0000) >> 16); | |
313 | helperbuf[3] = ((tx_len & 0xff000000) >> 24); | |
314 | ||
315 | memcpy(&helperbuf[SDIO_HEADER_LEN], &helper[hlprblknow], | |
316 | tx_len); | |
317 | ||
318 | /* Now send the data */ | |
dcf47f3b MH |
319 | ret = sdio_writesb(card->func, card->ioport, helperbuf, |
320 | FIRMWARE_TRANSFER_NBLOCK * SDIO_BLOCK_SIZE); | |
789221ec BZ |
321 | if (ret < 0) { |
322 | BT_ERR("IO error during helper download @ %d", | |
323 | hlprblknow); | |
324 | goto done; | |
325 | } | |
326 | ||
327 | hlprblknow += tx_len; | |
328 | } while (true); | |
329 | ||
330 | BT_DBG("Transferring helper image EOF block"); | |
331 | ||
332 | memset(helperbuf, 0x0, SDIO_BLOCK_SIZE); | |
333 | ||
334 | ret = sdio_writesb(card->func, card->ioport, helperbuf, | |
dcf47f3b | 335 | SDIO_BLOCK_SIZE); |
789221ec BZ |
336 | if (ret < 0) { |
337 | BT_ERR("IO error in writing helper image EOF block"); | |
338 | goto done; | |
339 | } | |
340 | ||
341 | ret = 0; | |
342 | ||
343 | done: | |
344 | kfree(tmphlprbuf); | |
59f34fb3 | 345 | release_firmware(fw_helper); |
789221ec BZ |
346 | return ret; |
347 | } | |
348 | ||
349 | static int btmrvl_sdio_download_fw_w_helper(struct btmrvl_sdio_card *card) | |
350 | { | |
351 | const struct firmware *fw_firmware = NULL; | |
352 | const u8 *firmware = NULL; | |
353 | int firmwarelen, tmpfwbufsz, ret; | |
354 | unsigned int tries, offset; | |
355 | u8 base0, base1; | |
356 | void *tmpfwbuf = NULL; | |
357 | u8 *fwbuf; | |
9f72c1d9 | 358 | u16 len, blksz_dl = card->sd_blksz_fw_dl; |
789221ec BZ |
359 | int txlen = 0, tx_blocks = 0, count = 0; |
360 | ||
789221ec | 361 | ret = request_firmware(&fw_firmware, card->firmware, |
dcf47f3b | 362 | &card->func->dev); |
789221ec BZ |
363 | if ((ret < 0) || !fw_firmware) { |
364 | BT_ERR("request_firmware(firmware) failed, error code = %d", | |
dcf47f3b | 365 | ret); |
789221ec BZ |
366 | ret = -ENOENT; |
367 | goto done; | |
368 | } | |
369 | ||
370 | firmware = fw_firmware->data; | |
371 | firmwarelen = fw_firmware->size; | |
372 | ||
373 | BT_DBG("Downloading FW image (%d bytes)", firmwarelen); | |
374 | ||
375 | tmpfwbufsz = ALIGN_SZ(BTM_UPLD_SIZE, BTSDIO_DMA_ALIGN); | |
f8df39f1 | 376 | tmpfwbuf = kzalloc(tmpfwbufsz, GFP_KERNEL); |
789221ec BZ |
377 | if (!tmpfwbuf) { |
378 | BT_ERR("Unable to allocate buffer for firmware." | |
379 | " Terminating download"); | |
380 | ret = -ENOMEM; | |
381 | goto done; | |
382 | } | |
383 | ||
789221ec BZ |
384 | /* Ensure aligned firmware buffer */ |
385 | fwbuf = (u8 *) ALIGN_ADDR(tmpfwbuf, BTSDIO_DMA_ALIGN); | |
386 | ||
387 | /* Perform firmware data transfer */ | |
388 | offset = 0; | |
389 | do { | |
390 | ret = btmrvl_sdio_poll_card_status(card, | |
dcf47f3b | 391 | CARD_IO_READY | DN_LD_CARD_RDY); |
789221ec BZ |
392 | if (ret < 0) { |
393 | BT_ERR("FW download with helper poll status" | |
dcf47f3b | 394 | " timeout @ %d", offset); |
789221ec BZ |
395 | goto done; |
396 | } | |
397 | ||
398 | /* Check if there is more data ? */ | |
399 | if (offset >= firmwarelen) | |
400 | break; | |
401 | ||
402 | for (tries = 0; tries < MAX_POLL_TRIES; tries++) { | |
403 | base0 = sdio_readb(card->func, | |
9f72c1d9 | 404 | card->reg->sq_read_base_addr_a0, &ret); |
789221ec BZ |
405 | if (ret) { |
406 | BT_ERR("BASE0 register read failed:" | |
407 | " base0 = 0x%04X(%d)." | |
408 | " Terminating download", | |
409 | base0, base0); | |
410 | ret = -EIO; | |
411 | goto done; | |
412 | } | |
413 | base1 = sdio_readb(card->func, | |
9f72c1d9 | 414 | card->reg->sq_read_base_addr_a1, &ret); |
789221ec BZ |
415 | if (ret) { |
416 | BT_ERR("BASE1 register read failed:" | |
417 | " base1 = 0x%04X(%d)." | |
418 | " Terminating download", | |
419 | base1, base1); | |
420 | ret = -EIO; | |
421 | goto done; | |
422 | } | |
423 | ||
424 | len = (((u16) base1) << 8) | base0; | |
425 | if (len) | |
426 | break; | |
427 | ||
428 | udelay(10); | |
429 | } | |
430 | ||
431 | if (!len) | |
432 | break; | |
433 | else if (len > BTM_UPLD_SIZE) { | |
434 | BT_ERR("FW download failure @%d, invalid length %d", | |
dcf47f3b | 435 | offset, len); |
789221ec BZ |
436 | ret = -EINVAL; |
437 | goto done; | |
438 | } | |
439 | ||
440 | txlen = len; | |
441 | ||
442 | if (len & BIT(0)) { | |
443 | count++; | |
444 | if (count > MAX_WRITE_IOMEM_RETRY) { | |
445 | BT_ERR("FW download failure @%d, " | |
446 | "over max retry count", offset); | |
447 | ret = -EIO; | |
448 | goto done; | |
449 | } | |
450 | BT_ERR("FW CRC error indicated by the helper: " | |
451 | "len = 0x%04X, txlen = %d", len, txlen); | |
452 | len &= ~BIT(0); | |
453 | /* Set txlen to 0 so as to resend from same offset */ | |
454 | txlen = 0; | |
455 | } else { | |
456 | count = 0; | |
457 | ||
458 | /* Last block ? */ | |
459 | if (firmwarelen - offset < txlen) | |
460 | txlen = firmwarelen - offset; | |
461 | ||
9f72c1d9 | 462 | tx_blocks = (txlen + blksz_dl - 1) / blksz_dl; |
789221ec BZ |
463 | |
464 | memcpy(fwbuf, &firmware[offset], txlen); | |
465 | } | |
466 | ||
467 | ret = sdio_writesb(card->func, card->ioport, fwbuf, | |
9f72c1d9 | 468 | tx_blocks * blksz_dl); |
789221ec BZ |
469 | |
470 | if (ret < 0) { | |
471 | BT_ERR("FW download, writesb(%d) failed @%d", | |
dcf47f3b | 472 | count, offset); |
9f72c1d9 KG |
473 | sdio_writeb(card->func, HOST_CMD53_FIN, |
474 | card->reg->cfg, &ret); | |
789221ec BZ |
475 | if (ret) |
476 | BT_ERR("writeb failed (CFG)"); | |
477 | } | |
478 | ||
479 | offset += txlen; | |
480 | } while (true); | |
481 | ||
482 | BT_DBG("FW download over, size %d bytes", offset); | |
483 | ||
484 | ret = 0; | |
485 | ||
486 | done: | |
487 | kfree(tmpfwbuf); | |
59f34fb3 | 488 | release_firmware(fw_firmware); |
789221ec BZ |
489 | return ret; |
490 | } | |
491 | ||
492 | static int btmrvl_sdio_card_to_host(struct btmrvl_private *priv) | |
493 | { | |
494 | u16 buf_len = 0; | |
42632805 | 495 | int ret, num_blocks, blksz; |
789221ec BZ |
496 | struct sk_buff *skb = NULL; |
497 | u32 type; | |
498 | u8 *payload = NULL; | |
499 | struct hci_dev *hdev = priv->btmrvl_dev.hcidev; | |
500 | struct btmrvl_sdio_card *card = priv->btmrvl_dev.card; | |
501 | ||
789221ec BZ |
502 | if (!card || !card->func) { |
503 | BT_ERR("card or function is NULL!"); | |
504 | ret = -EINVAL; | |
505 | goto exit; | |
506 | } | |
507 | ||
508 | /* Read the length of data to be transferred */ | |
509 | ret = btmrvl_sdio_read_rx_len(card, &buf_len); | |
510 | if (ret < 0) { | |
511 | BT_ERR("read rx_len failed"); | |
512 | ret = -EIO; | |
513 | goto exit; | |
514 | } | |
515 | ||
516 | blksz = SDIO_BLOCK_SIZE; | |
e678bad5 | 517 | num_blocks = DIV_ROUND_UP(buf_len, blksz); |
789221ec BZ |
518 | |
519 | if (buf_len <= SDIO_HEADER_LEN | |
42632805 | 520 | || (num_blocks * blksz) > ALLOC_BUF_SIZE) { |
789221ec BZ |
521 | BT_ERR("invalid packet length: %d", buf_len); |
522 | ret = -EINVAL; | |
523 | goto exit; | |
524 | } | |
525 | ||
526 | /* Allocate buffer */ | |
42632805 | 527 | skb = bt_skb_alloc(num_blocks * blksz + BTSDIO_DMA_ALIGN, GFP_ATOMIC); |
789221ec BZ |
528 | if (skb == NULL) { |
529 | BT_ERR("No free skb"); | |
530 | goto exit; | |
531 | } | |
532 | ||
3318b236 BZ |
533 | if ((unsigned long) skb->data & (BTSDIO_DMA_ALIGN - 1)) { |
534 | skb_put(skb, (unsigned long) skb->data & | |
535 | (BTSDIO_DMA_ALIGN - 1)); | |
536 | skb_pull(skb, (unsigned long) skb->data & | |
537 | (BTSDIO_DMA_ALIGN - 1)); | |
789221ec BZ |
538 | } |
539 | ||
3318b236 | 540 | payload = skb->data; |
789221ec BZ |
541 | |
542 | ret = sdio_readsb(card->func, payload, card->ioport, | |
42632805 | 543 | num_blocks * blksz); |
789221ec BZ |
544 | if (ret < 0) { |
545 | BT_ERR("readsb failed: %d", ret); | |
546 | ret = -EIO; | |
547 | goto exit; | |
548 | } | |
549 | ||
550 | /* This is SDIO specific header length: byte[2][1][0], type: byte[3] | |
551 | * (HCI_COMMAND = 1, ACL_DATA = 2, SCO_DATA = 3, 0xFE = Vendor) | |
552 | */ | |
553 | ||
554 | buf_len = payload[0]; | |
9cb23dd4 AE |
555 | buf_len |= payload[1] << 8; |
556 | buf_len |= payload[2] << 16; | |
557 | ||
558 | if (buf_len > blksz * num_blocks) { | |
559 | BT_ERR("Skip incorrect packet: hdrlen %d buffer %d", | |
560 | buf_len, blksz * num_blocks); | |
561 | ret = -EIO; | |
562 | goto exit; | |
563 | } | |
564 | ||
789221ec BZ |
565 | type = payload[3]; |
566 | ||
567 | switch (type) { | |
568 | case HCI_ACLDATA_PKT: | |
569 | case HCI_SCODATA_PKT: | |
570 | case HCI_EVENT_PKT: | |
571 | bt_cb(skb)->pkt_type = type; | |
572 | skb->dev = (void *)hdev; | |
573 | skb_put(skb, buf_len); | |
574 | skb_pull(skb, SDIO_HEADER_LEN); | |
575 | ||
ea1e76a3 AE |
576 | if (type == HCI_EVENT_PKT) { |
577 | if (btmrvl_check_evtpkt(priv, skb)) | |
578 | hci_recv_frame(skb); | |
2c2453f3 | 579 | } else { |
ea1e76a3 | 580 | hci_recv_frame(skb); |
2c2453f3 | 581 | } |
789221ec | 582 | |
789221ec BZ |
583 | hdev->stat.byte_rx += buf_len; |
584 | break; | |
585 | ||
586 | case MRVL_VENDOR_PKT: | |
587 | bt_cb(skb)->pkt_type = HCI_VENDOR_PKT; | |
588 | skb->dev = (void *)hdev; | |
589 | skb_put(skb, buf_len); | |
590 | skb_pull(skb, SDIO_HEADER_LEN); | |
591 | ||
592 | if (btmrvl_process_event(priv, skb)) | |
593 | hci_recv_frame(skb); | |
594 | ||
595 | hdev->stat.byte_rx += buf_len; | |
596 | break; | |
597 | ||
598 | default: | |
af901ca1 | 599 | BT_ERR("Unknown packet type:%d", type); |
78c1b8e8 | 600 | BT_ERR("hex: %*ph", blksz * num_blocks, payload); |
789221ec BZ |
601 | |
602 | kfree_skb(skb); | |
603 | skb = NULL; | |
604 | break; | |
605 | } | |
606 | ||
607 | exit: | |
608 | if (ret) { | |
609 | hdev->stat.err_rx++; | |
7923296f | 610 | kfree_skb(skb); |
789221ec BZ |
611 | } |
612 | ||
789221ec BZ |
613 | return ret; |
614 | } | |
615 | ||
d1d10d78 | 616 | static int btmrvl_sdio_process_int_status(struct btmrvl_private *priv) |
789221ec | 617 | { |
d1d10d78 AK |
618 | ulong flags; |
619 | u8 ireg; | |
789221ec BZ |
620 | struct btmrvl_sdio_card *card = priv->btmrvl_dev.card; |
621 | ||
d1d10d78 AK |
622 | spin_lock_irqsave(&priv->driver_lock, flags); |
623 | ireg = sdio_ireg; | |
624 | sdio_ireg = 0; | |
625 | spin_unlock_irqrestore(&priv->driver_lock, flags); | |
789221ec | 626 | |
d1d10d78 AK |
627 | sdio_claim_host(card->func); |
628 | if (ireg & DN_LD_HOST_INT_STATUS) { | |
789221ec BZ |
629 | if (priv->btmrvl_dev.tx_dnld_rdy) |
630 | BT_DBG("tx_done already received: " | |
d1d10d78 | 631 | " int_status=0x%x", ireg); |
789221ec BZ |
632 | else |
633 | priv->btmrvl_dev.tx_dnld_rdy = true; | |
634 | } | |
635 | ||
d1d10d78 | 636 | if (ireg & UP_LD_HOST_INT_STATUS) |
789221ec BZ |
637 | btmrvl_sdio_card_to_host(priv); |
638 | ||
d1d10d78 | 639 | sdio_release_host(card->func); |
789221ec | 640 | |
d1d10d78 | 641 | return 0; |
789221ec BZ |
642 | } |
643 | ||
644 | static void btmrvl_sdio_interrupt(struct sdio_func *func) | |
645 | { | |
646 | struct btmrvl_private *priv; | |
789221ec | 647 | struct btmrvl_sdio_card *card; |
d1d10d78 | 648 | ulong flags; |
789221ec | 649 | u8 ireg = 0; |
d1d10d78 | 650 | int ret; |
789221ec | 651 | |
789221ec | 652 | card = sdio_get_drvdata(func); |
d1d10d78 AK |
653 | if (!card || !card->priv) { |
654 | BT_ERR("sbi_interrupt(%p) card or priv is " | |
655 | "NULL, card=%p\n", func, card); | |
656 | return; | |
657 | } | |
789221ec | 658 | |
d1d10d78 | 659 | priv = card->priv; |
789221ec | 660 | |
9f72c1d9 | 661 | ireg = sdio_readb(card->func, card->reg->host_intstatus, &ret); |
d1d10d78 AK |
662 | if (ret) { |
663 | BT_ERR("sdio_readb: read int status register failed"); | |
664 | return; | |
789221ec | 665 | } |
d1d10d78 AK |
666 | |
667 | if (ireg != 0) { | |
668 | /* | |
669 | * DN_LD_HOST_INT_STATUS and/or UP_LD_HOST_INT_STATUS | |
670 | * Clear the interrupt status register and re-enable the | |
671 | * interrupt. | |
672 | */ | |
673 | BT_DBG("ireg = 0x%x", ireg); | |
674 | ||
675 | sdio_writeb(card->func, ~(ireg) & (DN_LD_HOST_INT_STATUS | | |
676 | UP_LD_HOST_INT_STATUS), | |
9f72c1d9 | 677 | card->reg->host_intstatus, &ret); |
d1d10d78 AK |
678 | if (ret) { |
679 | BT_ERR("sdio_writeb: clear int status register failed"); | |
680 | return; | |
681 | } | |
682 | } | |
683 | ||
684 | spin_lock_irqsave(&priv->driver_lock, flags); | |
685 | sdio_ireg |= ireg; | |
686 | spin_unlock_irqrestore(&priv->driver_lock, flags); | |
687 | ||
688 | btmrvl_interrupt(priv); | |
789221ec BZ |
689 | } |
690 | ||
691 | static int btmrvl_sdio_register_dev(struct btmrvl_sdio_card *card) | |
692 | { | |
789221ec | 693 | struct sdio_func *func; |
dcf47f3b MH |
694 | u8 reg; |
695 | int ret = 0; | |
789221ec | 696 | |
789221ec BZ |
697 | if (!card || !card->func) { |
698 | BT_ERR("Error: card or function is NULL!"); | |
699 | ret = -EINVAL; | |
700 | goto failed; | |
701 | } | |
702 | ||
703 | func = card->func; | |
704 | ||
789221ec BZ |
705 | sdio_claim_host(func); |
706 | ||
707 | ret = sdio_enable_func(func); | |
708 | if (ret) { | |
709 | BT_ERR("sdio_enable_func() failed: ret=%d", ret); | |
710 | ret = -EIO; | |
711 | goto release_host; | |
712 | } | |
713 | ||
714 | ret = sdio_claim_irq(func, btmrvl_sdio_interrupt); | |
715 | if (ret) { | |
716 | BT_ERR("sdio_claim_irq failed: ret=%d", ret); | |
717 | ret = -EIO; | |
718 | goto disable_func; | |
719 | } | |
720 | ||
721 | ret = sdio_set_block_size(card->func, SDIO_BLOCK_SIZE); | |
722 | if (ret) { | |
723 | BT_ERR("cannot set SDIO block size"); | |
724 | ret = -EIO; | |
725 | goto release_irq; | |
726 | } | |
727 | ||
9f72c1d9 | 728 | reg = sdio_readb(func, card->reg->io_port_0, &ret); |
789221ec BZ |
729 | if (ret < 0) { |
730 | ret = -EIO; | |
731 | goto release_irq; | |
732 | } | |
733 | ||
734 | card->ioport = reg; | |
735 | ||
9f72c1d9 | 736 | reg = sdio_readb(func, card->reg->io_port_1, &ret); |
789221ec BZ |
737 | if (ret < 0) { |
738 | ret = -EIO; | |
739 | goto release_irq; | |
740 | } | |
741 | ||
742 | card->ioport |= (reg << 8); | |
743 | ||
9f72c1d9 | 744 | reg = sdio_readb(func, card->reg->io_port_2, &ret); |
789221ec BZ |
745 | if (ret < 0) { |
746 | ret = -EIO; | |
747 | goto release_irq; | |
748 | } | |
749 | ||
750 | card->ioport |= (reg << 16); | |
751 | ||
752 | BT_DBG("SDIO FUNC%d IO port: 0x%x", func->num, card->ioport); | |
753 | ||
754 | sdio_set_drvdata(func, card); | |
755 | ||
756 | sdio_release_host(func); | |
757 | ||
789221ec BZ |
758 | return 0; |
759 | ||
760 | release_irq: | |
761 | sdio_release_irq(func); | |
762 | ||
763 | disable_func: | |
764 | sdio_disable_func(func); | |
765 | ||
766 | release_host: | |
767 | sdio_release_host(func); | |
768 | ||
769 | failed: | |
789221ec BZ |
770 | return ret; |
771 | } | |
772 | ||
773 | static int btmrvl_sdio_unregister_dev(struct btmrvl_sdio_card *card) | |
774 | { | |
789221ec BZ |
775 | if (card && card->func) { |
776 | sdio_claim_host(card->func); | |
777 | sdio_release_irq(card->func); | |
778 | sdio_disable_func(card->func); | |
779 | sdio_release_host(card->func); | |
780 | sdio_set_drvdata(card->func, NULL); | |
781 | } | |
782 | ||
789221ec BZ |
783 | return 0; |
784 | } | |
785 | ||
786 | static int btmrvl_sdio_enable_host_int(struct btmrvl_sdio_card *card) | |
787 | { | |
788 | int ret; | |
789 | ||
9374253f | 790 | if (!card || !card->func) |
789221ec | 791 | return -EINVAL; |
789221ec BZ |
792 | |
793 | sdio_claim_host(card->func); | |
794 | ||
795 | ret = btmrvl_sdio_enable_host_int_mask(card, HIM_ENABLE); | |
796 | ||
797 | btmrvl_sdio_get_rx_unit(card); | |
798 | ||
799 | sdio_release_host(card->func); | |
800 | ||
789221ec BZ |
801 | return ret; |
802 | } | |
803 | ||
804 | static int btmrvl_sdio_disable_host_int(struct btmrvl_sdio_card *card) | |
805 | { | |
806 | int ret; | |
807 | ||
9374253f | 808 | if (!card || !card->func) |
789221ec | 809 | return -EINVAL; |
789221ec BZ |
810 | |
811 | sdio_claim_host(card->func); | |
812 | ||
813 | ret = btmrvl_sdio_disable_host_int_mask(card, HIM_DISABLE); | |
814 | ||
815 | sdio_release_host(card->func); | |
816 | ||
789221ec BZ |
817 | return ret; |
818 | } | |
819 | ||
820 | static int btmrvl_sdio_host_to_card(struct btmrvl_private *priv, | |
821 | u8 *payload, u16 nb) | |
822 | { | |
823 | struct btmrvl_sdio_card *card = priv->btmrvl_dev.card; | |
824 | int ret = 0; | |
825 | int buf_block_len; | |
826 | int blksz; | |
827 | int i = 0; | |
828 | u8 *buf = NULL; | |
829 | void *tmpbuf = NULL; | |
830 | int tmpbufsz; | |
831 | ||
789221ec BZ |
832 | if (!card || !card->func) { |
833 | BT_ERR("card or function is NULL!"); | |
789221ec BZ |
834 | return -EINVAL; |
835 | } | |
836 | ||
837 | buf = payload; | |
3318b236 | 838 | if ((unsigned long) payload & (BTSDIO_DMA_ALIGN - 1)) { |
789221ec | 839 | tmpbufsz = ALIGN_SZ(nb, BTSDIO_DMA_ALIGN); |
5959809d JL |
840 | tmpbuf = kzalloc(tmpbufsz, GFP_KERNEL); |
841 | if (!tmpbuf) | |
842 | return -ENOMEM; | |
789221ec BZ |
843 | buf = (u8 *) ALIGN_ADDR(tmpbuf, BTSDIO_DMA_ALIGN); |
844 | memcpy(buf, payload, nb); | |
845 | } | |
846 | ||
847 | blksz = SDIO_BLOCK_SIZE; | |
848 | buf_block_len = (nb + blksz - 1) / blksz; | |
849 | ||
850 | sdio_claim_host(card->func); | |
851 | ||
852 | do { | |
853 | /* Transfer data to card */ | |
854 | ret = sdio_writesb(card->func, card->ioport, buf, | |
855 | buf_block_len * blksz); | |
856 | if (ret < 0) { | |
857 | i++; | |
858 | BT_ERR("i=%d writesb failed: %d", i, ret); | |
78c1b8e8 | 859 | BT_ERR("hex: %*ph", nb, payload); |
789221ec BZ |
860 | ret = -EIO; |
861 | if (i > MAX_WRITE_IOMEM_RETRY) | |
862 | goto exit; | |
863 | } | |
864 | } while (ret); | |
865 | ||
866 | priv->btmrvl_dev.tx_dnld_rdy = false; | |
867 | ||
868 | exit: | |
869 | sdio_release_host(card->func); | |
88d1a0cf | 870 | kfree(tmpbuf); |
789221ec | 871 | |
789221ec BZ |
872 | return ret; |
873 | } | |
874 | ||
875 | static int btmrvl_sdio_download_fw(struct btmrvl_sdio_card *card) | |
876 | { | |
877 | int ret = 0; | |
9f72c1d9 KG |
878 | u8 fws0; |
879 | int pollnum = MAX_POLL_TRIES; | |
789221ec | 880 | |
789221ec BZ |
881 | if (!card || !card->func) { |
882 | BT_ERR("card or function is NULL!"); | |
789221ec BZ |
883 | return -EINVAL; |
884 | } | |
885 | sdio_claim_host(card->func); | |
886 | ||
887 | if (!btmrvl_sdio_verify_fw_download(card, 1)) { | |
888 | BT_DBG("Firmware already downloaded!"); | |
889 | goto done; | |
890 | } | |
891 | ||
9f72c1d9 KG |
892 | /* Check if other function driver is downloading the firmware */ |
893 | fws0 = sdio_readb(card->func, card->reg->card_fw_status0, &ret); | |
789221ec | 894 | if (ret) { |
9f72c1d9 | 895 | BT_ERR("Failed to read FW downloading status!"); |
789221ec BZ |
896 | ret = -EIO; |
897 | goto done; | |
898 | } | |
9f72c1d9 KG |
899 | if (fws0) { |
900 | BT_DBG("BT not the winner (%#x). Skip FW downloading", fws0); | |
901 | ||
902 | /* Give other function more time to download the firmware */ | |
903 | pollnum *= 10; | |
904 | } else { | |
905 | if (card->helper) { | |
906 | ret = btmrvl_sdio_download_helper(card); | |
907 | if (ret) { | |
908 | BT_ERR("Failed to download helper!"); | |
909 | ret = -EIO; | |
910 | goto done; | |
911 | } | |
912 | } | |
789221ec | 913 | |
9f72c1d9 KG |
914 | if (btmrvl_sdio_download_fw_w_helper(card)) { |
915 | BT_ERR("Failed to download firmware!"); | |
916 | ret = -EIO; | |
917 | goto done; | |
918 | } | |
789221ec BZ |
919 | } |
920 | ||
9f72c1d9 | 921 | if (btmrvl_sdio_verify_fw_download(card, pollnum)) { |
789221ec BZ |
922 | BT_ERR("FW failed to be active in time!"); |
923 | ret = -ETIMEDOUT; | |
924 | goto done; | |
925 | } | |
926 | ||
927 | done: | |
928 | sdio_release_host(card->func); | |
929 | ||
789221ec BZ |
930 | return ret; |
931 | } | |
932 | ||
933 | static int btmrvl_sdio_wakeup_fw(struct btmrvl_private *priv) | |
934 | { | |
935 | struct btmrvl_sdio_card *card = priv->btmrvl_dev.card; | |
936 | int ret = 0; | |
937 | ||
789221ec BZ |
938 | if (!card || !card->func) { |
939 | BT_ERR("card or function is NULL!"); | |
789221ec BZ |
940 | return -EINVAL; |
941 | } | |
942 | ||
943 | sdio_claim_host(card->func); | |
944 | ||
9f72c1d9 | 945 | sdio_writeb(card->func, HOST_POWER_UP, card->reg->cfg, &ret); |
789221ec BZ |
946 | |
947 | sdio_release_host(card->func); | |
948 | ||
949 | BT_DBG("wake up firmware"); | |
950 | ||
789221ec BZ |
951 | return ret; |
952 | } | |
953 | ||
954 | static int btmrvl_sdio_probe(struct sdio_func *func, | |
dcf47f3b | 955 | const struct sdio_device_id *id) |
789221ec BZ |
956 | { |
957 | int ret = 0; | |
958 | struct btmrvl_private *priv = NULL; | |
959 | struct btmrvl_sdio_card *card = NULL; | |
960 | ||
789221ec BZ |
961 | BT_INFO("vendor=0x%x, device=0x%x, class=%d, fn=%d", |
962 | id->vendor, id->device, id->class, func->num); | |
963 | ||
eb17ea3b SK |
964 | card = devm_kzalloc(&func->dev, sizeof(*card), GFP_KERNEL); |
965 | if (!card) | |
966 | return -ENOMEM; | |
789221ec BZ |
967 | |
968 | card->func = func; | |
969 | ||
dcf47f3b MH |
970 | if (id->driver_data) { |
971 | struct btmrvl_sdio_device *data = (void *) id->driver_data; | |
9f72c1d9 | 972 | card->helper = data->helper; |
dcf47f3b | 973 | card->firmware = data->firmware; |
9f72c1d9 KG |
974 | card->reg = data->reg; |
975 | card->sd_blksz_fw_dl = data->sd_blksz_fw_dl; | |
dcf47f3b MH |
976 | } |
977 | ||
789221ec BZ |
978 | if (btmrvl_sdio_register_dev(card) < 0) { |
979 | BT_ERR("Failed to register BT device!"); | |
eb17ea3b | 980 | return -ENODEV; |
789221ec BZ |
981 | } |
982 | ||
983 | /* Disable the interrupts on the card */ | |
984 | btmrvl_sdio_disable_host_int(card); | |
985 | ||
986 | if (btmrvl_sdio_download_fw(card)) { | |
987 | BT_ERR("Downloading firmware failed!"); | |
988 | ret = -ENODEV; | |
989 | goto unreg_dev; | |
990 | } | |
991 | ||
992 | msleep(100); | |
993 | ||
994 | btmrvl_sdio_enable_host_int(card); | |
995 | ||
996 | priv = btmrvl_add_card(card); | |
997 | if (!priv) { | |
998 | BT_ERR("Initializing card failed!"); | |
999 | ret = -ENODEV; | |
1000 | goto disable_host_int; | |
1001 | } | |
1002 | ||
1003 | card->priv = priv; | |
1004 | ||
1005 | /* Initialize the interface specific function pointers */ | |
1006 | priv->hw_host_to_card = btmrvl_sdio_host_to_card; | |
1007 | priv->hw_wakeup_firmware = btmrvl_sdio_wakeup_fw; | |
d1d10d78 | 1008 | priv->hw_process_int_status = btmrvl_sdio_process_int_status; |
789221ec | 1009 | |
64061607 BZ |
1010 | if (btmrvl_register_hdev(priv)) { |
1011 | BT_ERR("Register hdev failed!"); | |
1012 | ret = -ENODEV; | |
1013 | goto disable_host_int; | |
1014 | } | |
1015 | ||
32fd6398 AK |
1016 | priv->btmrvl_dev.psmode = 1; |
1017 | btmrvl_enable_ps(priv); | |
789221ec | 1018 | |
2a8ff611 AK |
1019 | priv->btmrvl_dev.gpio_gap = 0xffff; |
1020 | btmrvl_send_hscfg_cmd(priv); | |
1021 | ||
789221ec BZ |
1022 | return 0; |
1023 | ||
1024 | disable_host_int: | |
1025 | btmrvl_sdio_disable_host_int(card); | |
1026 | unreg_dev: | |
1027 | btmrvl_sdio_unregister_dev(card); | |
789221ec BZ |
1028 | return ret; |
1029 | } | |
1030 | ||
1031 | static void btmrvl_sdio_remove(struct sdio_func *func) | |
1032 | { | |
1033 | struct btmrvl_sdio_card *card; | |
1034 | ||
789221ec BZ |
1035 | if (func) { |
1036 | card = sdio_get_drvdata(func); | |
1037 | if (card) { | |
1038 | /* Send SHUTDOWN command & disable interrupt | |
1039 | * if user removes the module. | |
1040 | */ | |
1041 | if (user_rmmod) { | |
1042 | btmrvl_send_module_cfg_cmd(card->priv, | |
1043 | MODULE_SHUTDOWN_REQ); | |
1044 | btmrvl_sdio_disable_host_int(card); | |
1045 | } | |
1046 | BT_DBG("unregester dev"); | |
1047 | btmrvl_sdio_unregister_dev(card); | |
1048 | btmrvl_remove_card(card->priv); | |
789221ec BZ |
1049 | } |
1050 | } | |
789221ec BZ |
1051 | } |
1052 | ||
ba54a16f AK |
1053 | static int btmrvl_sdio_suspend(struct device *dev) |
1054 | { | |
1055 | struct sdio_func *func = dev_to_sdio_func(dev); | |
1056 | struct btmrvl_sdio_card *card; | |
1057 | struct btmrvl_private *priv; | |
1058 | mmc_pm_flag_t pm_flags; | |
1059 | struct hci_dev *hcidev; | |
1060 | ||
1061 | if (func) { | |
1062 | pm_flags = sdio_get_host_pm_caps(func); | |
1063 | BT_DBG("%s: suspend: PM flags = 0x%x", sdio_func_id(func), | |
1064 | pm_flags); | |
1065 | if (!(pm_flags & MMC_PM_KEEP_POWER)) { | |
1066 | BT_ERR("%s: cannot remain alive while suspended", | |
1067 | sdio_func_id(func)); | |
1068 | return -ENOSYS; | |
1069 | } | |
1070 | card = sdio_get_drvdata(func); | |
1071 | if (!card || !card->priv) { | |
1072 | BT_ERR("card or priv structure is not valid"); | |
1073 | return 0; | |
1074 | } | |
1075 | } else { | |
1076 | BT_ERR("sdio_func is not specified"); | |
1077 | return 0; | |
1078 | } | |
1079 | ||
1080 | priv = card->priv; | |
1081 | ||
1082 | if (priv->adapter->hs_state != HS_ACTIVATED) { | |
1083 | if (btmrvl_enable_hs(priv)) { | |
1084 | BT_ERR("HS not actived, suspend failed!"); | |
1085 | return -EBUSY; | |
1086 | } | |
1087 | } | |
1088 | hcidev = priv->btmrvl_dev.hcidev; | |
1089 | BT_DBG("%s: SDIO suspend", hcidev->name); | |
1090 | hci_suspend_dev(hcidev); | |
1091 | skb_queue_purge(&priv->adapter->tx_queue); | |
1092 | ||
1093 | priv->adapter->is_suspended = true; | |
1094 | ||
1095 | /* We will keep the power when hs enabled successfully */ | |
1096 | if (priv->adapter->hs_state == HS_ACTIVATED) { | |
1097 | BT_DBG("suspend with MMC_PM_KEEP_POWER"); | |
1098 | return sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER); | |
1099 | } else { | |
1100 | BT_DBG("suspend without MMC_PM_KEEP_POWER"); | |
1101 | return 0; | |
1102 | } | |
1103 | } | |
1104 | ||
1105 | static int btmrvl_sdio_resume(struct device *dev) | |
1106 | { | |
1107 | struct sdio_func *func = dev_to_sdio_func(dev); | |
1108 | struct btmrvl_sdio_card *card; | |
1109 | struct btmrvl_private *priv; | |
1110 | mmc_pm_flag_t pm_flags; | |
1111 | struct hci_dev *hcidev; | |
1112 | ||
1113 | if (func) { | |
1114 | pm_flags = sdio_get_host_pm_caps(func); | |
1115 | BT_DBG("%s: resume: PM flags = 0x%x", sdio_func_id(func), | |
1116 | pm_flags); | |
1117 | card = sdio_get_drvdata(func); | |
1118 | if (!card || !card->priv) { | |
1119 | BT_ERR("card or priv structure is not valid"); | |
1120 | return 0; | |
1121 | } | |
1122 | } else { | |
1123 | BT_ERR("sdio_func is not specified"); | |
1124 | return 0; | |
1125 | } | |
1126 | priv = card->priv; | |
1127 | ||
1128 | if (!priv->adapter->is_suspended) { | |
1129 | BT_DBG("device already resumed"); | |
1130 | return 0; | |
1131 | } | |
1132 | ||
1133 | priv->adapter->is_suspended = false; | |
1134 | hcidev = priv->btmrvl_dev.hcidev; | |
1135 | BT_DBG("%s: SDIO resume", hcidev->name); | |
1136 | hci_resume_dev(hcidev); | |
1137 | priv->hw_wakeup_firmware(priv); | |
1138 | priv->adapter->hs_state = HS_DEACTIVATED; | |
1139 | BT_DBG("%s: HS DEACTIVATED in resume!", hcidev->name); | |
1140 | ||
1141 | return 0; | |
1142 | } | |
1143 | ||
1144 | static const struct dev_pm_ops btmrvl_sdio_pm_ops = { | |
1145 | .suspend = btmrvl_sdio_suspend, | |
1146 | .resume = btmrvl_sdio_resume, | |
1147 | }; | |
1148 | ||
789221ec BZ |
1149 | static struct sdio_driver bt_mrvl_sdio = { |
1150 | .name = "btmrvl_sdio", | |
1151 | .id_table = btmrvl_sdio_ids, | |
1152 | .probe = btmrvl_sdio_probe, | |
1153 | .remove = btmrvl_sdio_remove, | |
ba54a16f AK |
1154 | .drv = { |
1155 | .owner = THIS_MODULE, | |
1156 | .pm = &btmrvl_sdio_pm_ops, | |
1157 | } | |
789221ec BZ |
1158 | }; |
1159 | ||
8e5b2308 | 1160 | static int __init btmrvl_sdio_init_module(void) |
789221ec | 1161 | { |
789221ec BZ |
1162 | if (sdio_register_driver(&bt_mrvl_sdio) != 0) { |
1163 | BT_ERR("SDIO Driver Registration Failed"); | |
789221ec BZ |
1164 | return -ENODEV; |
1165 | } | |
1166 | ||
1167 | /* Clear the flag in case user removes the card. */ | |
1168 | user_rmmod = 0; | |
1169 | ||
789221ec BZ |
1170 | return 0; |
1171 | } | |
1172 | ||
8e5b2308 | 1173 | static void __exit btmrvl_sdio_exit_module(void) |
789221ec | 1174 | { |
789221ec BZ |
1175 | /* Set the flag as user is removing this module. */ |
1176 | user_rmmod = 1; | |
1177 | ||
1178 | sdio_unregister_driver(&bt_mrvl_sdio); | |
789221ec BZ |
1179 | } |
1180 | ||
1181 | module_init(btmrvl_sdio_init_module); | |
1182 | module_exit(btmrvl_sdio_exit_module); | |
1183 | ||
1184 | MODULE_AUTHOR("Marvell International Ltd."); | |
9666fb35 | 1185 | MODULE_DESCRIPTION("Marvell BT-over-SDIO driver ver " VERSION); |
789221ec BZ |
1186 | MODULE_VERSION(VERSION); |
1187 | MODULE_LICENSE("GPL v2"); | |
2861453b BH |
1188 | MODULE_FIRMWARE("sd8688_helper.bin"); |
1189 | MODULE_FIRMWARE("sd8688.bin"); | |
9f72c1d9 | 1190 | MODULE_FIRMWARE("mrvl/sd8787_uapsta.bin"); |
2ac654f7 | 1191 | MODULE_FIRMWARE("mrvl/sd8797_uapsta.bin"); |