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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 | ||
433a9389 | 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 | ||
22f2efed BZ |
85 | static const struct btmrvl_sdio_card_reg btmrvl_reg_88xx = { |
86 | .cfg = 0x00, | |
87 | .host_int_mask = 0x02, | |
88 | .host_intstatus = 0x03, | |
89 | .card_status = 0x50, | |
90 | .sq_read_base_addr_a0 = 0x60, | |
91 | .sq_read_base_addr_a1 = 0x61, | |
92 | .card_revision = 0xbc, | |
93 | .card_fw_status0 = 0xc0, | |
94 | .card_fw_status1 = 0xc1, | |
95 | .card_rx_len = 0xc2, | |
96 | .card_rx_unit = 0xc3, | |
97 | .io_port_0 = 0xd8, | |
98 | .io_port_1 = 0xd9, | |
99 | .io_port_2 = 0xda, | |
100 | }; | |
101 | ||
c675786a | 102 | static const struct btmrvl_sdio_device btmrvl_sdio_sd8688 = { |
77189df4 LR |
103 | .helper = "mrvl/sd8688_helper.bin", |
104 | .firmware = "mrvl/sd8688.bin", | |
9f72c1d9 KG |
105 | .reg = &btmrvl_reg_8688, |
106 | .sd_blksz_fw_dl = 64, | |
107 | }; | |
108 | ||
109 | static const struct btmrvl_sdio_device btmrvl_sdio_sd8787 = { | |
110 | .helper = NULL, | |
111 | .firmware = "mrvl/sd8787_uapsta.bin", | |
2ac654f7 BZ |
112 | .reg = &btmrvl_reg_87xx, |
113 | .sd_blksz_fw_dl = 256, | |
114 | }; | |
115 | ||
116 | static const struct btmrvl_sdio_device btmrvl_sdio_sd8797 = { | |
117 | .helper = NULL, | |
118 | .firmware = "mrvl/sd8797_uapsta.bin", | |
119 | .reg = &btmrvl_reg_87xx, | |
9f72c1d9 | 120 | .sd_blksz_fw_dl = 256, |
789221ec BZ |
121 | }; |
122 | ||
22f2efed BZ |
123 | static const struct btmrvl_sdio_device btmrvl_sdio_sd8897 = { |
124 | .helper = NULL, | |
125 | .firmware = "mrvl/sd8897_uapsta.bin", | |
126 | .reg = &btmrvl_reg_88xx, | |
127 | .sd_blksz_fw_dl = 256, | |
128 | }; | |
129 | ||
dcf47f3b MH |
130 | static const struct sdio_device_id btmrvl_sdio_ids[] = { |
131 | /* Marvell SD8688 Bluetooth device */ | |
132 | { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x9105), | |
c675786a | 133 | .driver_data = (unsigned long) &btmrvl_sdio_sd8688 }, |
9f72c1d9 KG |
134 | /* Marvell SD8787 Bluetooth device */ |
135 | { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x911A), | |
136 | .driver_data = (unsigned long) &btmrvl_sdio_sd8787 }, | |
37ed561e BZ |
137 | /* Marvell SD8787 Bluetooth AMP device */ |
138 | { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x911B), | |
139 | .driver_data = (unsigned long) &btmrvl_sdio_sd8787 }, | |
2ac654f7 BZ |
140 | /* Marvell SD8797 Bluetooth device */ |
141 | { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x912A), | |
142 | .driver_data = (unsigned long) &btmrvl_sdio_sd8797 }, | |
22f2efed BZ |
143 | /* Marvell SD8897 Bluetooth device */ |
144 | { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x912E), | |
145 | .driver_data = (unsigned long) &btmrvl_sdio_sd8897 }, | |
789221ec | 146 | |
dcf47f3b | 147 | { } /* Terminating entry */ |
789221ec BZ |
148 | }; |
149 | ||
dcf47f3b MH |
150 | MODULE_DEVICE_TABLE(sdio, btmrvl_sdio_ids); |
151 | ||
789221ec BZ |
152 | static int btmrvl_sdio_get_rx_unit(struct btmrvl_sdio_card *card) |
153 | { | |
154 | u8 reg; | |
155 | int ret; | |
156 | ||
9f72c1d9 | 157 | reg = sdio_readb(card->func, card->reg->card_rx_unit, &ret); |
789221ec BZ |
158 | if (!ret) |
159 | card->rx_unit = reg; | |
160 | ||
789221ec BZ |
161 | return ret; |
162 | } | |
163 | ||
164 | static int btmrvl_sdio_read_fw_status(struct btmrvl_sdio_card *card, u16 *dat) | |
165 | { | |
789221ec | 166 | u8 fws0, fws1; |
9374253f | 167 | int ret; |
789221ec BZ |
168 | |
169 | *dat = 0; | |
170 | ||
9f72c1d9 | 171 | fws0 = sdio_readb(card->func, card->reg->card_fw_status0, &ret); |
278be27f KV |
172 | if (ret) |
173 | return -EIO; | |
789221ec | 174 | |
9f72c1d9 | 175 | fws1 = sdio_readb(card->func, card->reg->card_fw_status1, &ret); |
9374253f | 176 | if (ret) |
789221ec | 177 | return -EIO; |
789221ec BZ |
178 | |
179 | *dat = (((u16) fws1) << 8) | fws0; | |
180 | ||
789221ec BZ |
181 | return 0; |
182 | } | |
183 | ||
184 | static int btmrvl_sdio_read_rx_len(struct btmrvl_sdio_card *card, u16 *dat) | |
185 | { | |
789221ec | 186 | u8 reg; |
9374253f | 187 | int ret; |
789221ec | 188 | |
9f72c1d9 | 189 | reg = sdio_readb(card->func, card->reg->card_rx_len, &ret); |
789221ec BZ |
190 | if (!ret) |
191 | *dat = (u16) reg << card->rx_unit; | |
192 | ||
789221ec BZ |
193 | return ret; |
194 | } | |
195 | ||
196 | static int btmrvl_sdio_enable_host_int_mask(struct btmrvl_sdio_card *card, | |
dcf47f3b | 197 | u8 mask) |
789221ec BZ |
198 | { |
199 | int ret; | |
200 | ||
9f72c1d9 | 201 | sdio_writeb(card->func, mask, card->reg->host_int_mask, &ret); |
789221ec BZ |
202 | if (ret) { |
203 | BT_ERR("Unable to enable the host interrupt!"); | |
204 | ret = -EIO; | |
205 | } | |
206 | ||
789221ec BZ |
207 | return ret; |
208 | } | |
209 | ||
210 | static int btmrvl_sdio_disable_host_int_mask(struct btmrvl_sdio_card *card, | |
dcf47f3b | 211 | u8 mask) |
789221ec | 212 | { |
789221ec | 213 | u8 host_int_mask; |
9374253f | 214 | int ret; |
789221ec | 215 | |
9f72c1d9 | 216 | host_int_mask = sdio_readb(card->func, card->reg->host_int_mask, &ret); |
9374253f MH |
217 | if (ret) |
218 | return -EIO; | |
789221ec BZ |
219 | |
220 | host_int_mask &= ~mask; | |
221 | ||
9f72c1d9 | 222 | sdio_writeb(card->func, host_int_mask, card->reg->host_int_mask, &ret); |
789221ec BZ |
223 | if (ret < 0) { |
224 | BT_ERR("Unable to disable the host interrupt!"); | |
9374253f | 225 | return -EIO; |
789221ec BZ |
226 | } |
227 | ||
9374253f | 228 | return 0; |
789221ec BZ |
229 | } |
230 | ||
231 | static int btmrvl_sdio_poll_card_status(struct btmrvl_sdio_card *card, u8 bits) | |
232 | { | |
233 | unsigned int tries; | |
789221ec | 234 | u8 status; |
9374253f | 235 | int ret; |
789221ec BZ |
236 | |
237 | for (tries = 0; tries < MAX_POLL_TRIES * 1000; tries++) { | |
9f72c1d9 | 238 | status = sdio_readb(card->func, card->reg->card_status, &ret); |
789221ec BZ |
239 | if (ret) |
240 | goto failed; | |
241 | if ((status & bits) == bits) | |
9374253f | 242 | return ret; |
789221ec BZ |
243 | |
244 | udelay(1); | |
245 | } | |
246 | ||
247 | ret = -ETIMEDOUT; | |
248 | ||
249 | failed: | |
250 | BT_ERR("FAILED! ret=%d", ret); | |
251 | ||
789221ec BZ |
252 | return ret; |
253 | } | |
254 | ||
255 | static int btmrvl_sdio_verify_fw_download(struct btmrvl_sdio_card *card, | |
dcf47f3b | 256 | int pollnum) |
789221ec | 257 | { |
789221ec | 258 | u16 firmwarestat; |
69676b1c | 259 | int tries, ret; |
789221ec | 260 | |
789221ec BZ |
261 | /* Wait for firmware to become ready */ |
262 | for (tries = 0; tries < pollnum; tries++) { | |
c1c999e2 AF |
263 | sdio_claim_host(card->func); |
264 | ret = btmrvl_sdio_read_fw_status(card, &firmwarestat); | |
265 | sdio_release_host(card->func); | |
266 | if (ret < 0) | |
789221ec BZ |
267 | continue; |
268 | ||
69676b1c AF |
269 | if (firmwarestat == FIRMWARE_READY) |
270 | return 0; | |
271 | ||
272 | msleep(10); | |
789221ec BZ |
273 | } |
274 | ||
69676b1c | 275 | return -ETIMEDOUT; |
789221ec BZ |
276 | } |
277 | ||
278 | static int btmrvl_sdio_download_helper(struct btmrvl_sdio_card *card) | |
279 | { | |
280 | const struct firmware *fw_helper = NULL; | |
281 | const u8 *helper = NULL; | |
282 | int ret; | |
283 | void *tmphlprbuf = NULL; | |
284 | int tmphlprbufsz, hlprblknow, helperlen; | |
285 | u8 *helperbuf; | |
286 | u32 tx_len; | |
287 | ||
789221ec | 288 | ret = request_firmware(&fw_helper, card->helper, |
dcf47f3b | 289 | &card->func->dev); |
789221ec BZ |
290 | if ((ret < 0) || !fw_helper) { |
291 | BT_ERR("request_firmware(helper) failed, error code = %d", | |
dcf47f3b | 292 | ret); |
789221ec BZ |
293 | ret = -ENOENT; |
294 | goto done; | |
295 | } | |
296 | ||
297 | helper = fw_helper->data; | |
298 | helperlen = fw_helper->size; | |
299 | ||
300 | BT_DBG("Downloading helper image (%d bytes), block size %d bytes", | |
dcf47f3b | 301 | helperlen, SDIO_BLOCK_SIZE); |
789221ec BZ |
302 | |
303 | tmphlprbufsz = ALIGN_SZ(BTM_UPLD_SIZE, BTSDIO_DMA_ALIGN); | |
304 | ||
f8df39f1 | 305 | tmphlprbuf = kzalloc(tmphlprbufsz, GFP_KERNEL); |
789221ec BZ |
306 | if (!tmphlprbuf) { |
307 | BT_ERR("Unable to allocate buffer for helper." | |
308 | " Terminating download"); | |
309 | ret = -ENOMEM; | |
310 | goto done; | |
311 | } | |
312 | ||
789221ec BZ |
313 | helperbuf = (u8 *) ALIGN_ADDR(tmphlprbuf, BTSDIO_DMA_ALIGN); |
314 | ||
315 | /* Perform helper data transfer */ | |
316 | tx_len = (FIRMWARE_TRANSFER_NBLOCK * SDIO_BLOCK_SIZE) | |
317 | - SDIO_HEADER_LEN; | |
318 | hlprblknow = 0; | |
319 | ||
320 | do { | |
321 | ret = btmrvl_sdio_poll_card_status(card, | |
322 | CARD_IO_READY | DN_LD_CARD_RDY); | |
323 | if (ret < 0) { | |
324 | BT_ERR("Helper download poll status timeout @ %d", | |
325 | hlprblknow); | |
326 | goto done; | |
327 | } | |
328 | ||
329 | /* Check if there is more data? */ | |
330 | if (hlprblknow >= helperlen) | |
331 | break; | |
332 | ||
333 | if (helperlen - hlprblknow < tx_len) | |
334 | tx_len = helperlen - hlprblknow; | |
335 | ||
336 | /* Little-endian */ | |
337 | helperbuf[0] = ((tx_len & 0x000000ff) >> 0); | |
338 | helperbuf[1] = ((tx_len & 0x0000ff00) >> 8); | |
339 | helperbuf[2] = ((tx_len & 0x00ff0000) >> 16); | |
340 | helperbuf[3] = ((tx_len & 0xff000000) >> 24); | |
341 | ||
342 | memcpy(&helperbuf[SDIO_HEADER_LEN], &helper[hlprblknow], | |
343 | tx_len); | |
344 | ||
345 | /* Now send the data */ | |
dcf47f3b MH |
346 | ret = sdio_writesb(card->func, card->ioport, helperbuf, |
347 | FIRMWARE_TRANSFER_NBLOCK * SDIO_BLOCK_SIZE); | |
789221ec BZ |
348 | if (ret < 0) { |
349 | BT_ERR("IO error during helper download @ %d", | |
350 | hlprblknow); | |
351 | goto done; | |
352 | } | |
353 | ||
354 | hlprblknow += tx_len; | |
355 | } while (true); | |
356 | ||
357 | BT_DBG("Transferring helper image EOF block"); | |
358 | ||
359 | memset(helperbuf, 0x0, SDIO_BLOCK_SIZE); | |
360 | ||
361 | ret = sdio_writesb(card->func, card->ioport, helperbuf, | |
dcf47f3b | 362 | SDIO_BLOCK_SIZE); |
789221ec BZ |
363 | if (ret < 0) { |
364 | BT_ERR("IO error in writing helper image EOF block"); | |
365 | goto done; | |
366 | } | |
367 | ||
368 | ret = 0; | |
369 | ||
370 | done: | |
371 | kfree(tmphlprbuf); | |
59f34fb3 | 372 | release_firmware(fw_helper); |
789221ec BZ |
373 | return ret; |
374 | } | |
375 | ||
376 | static int btmrvl_sdio_download_fw_w_helper(struct btmrvl_sdio_card *card) | |
377 | { | |
378 | const struct firmware *fw_firmware = NULL; | |
379 | const u8 *firmware = NULL; | |
380 | int firmwarelen, tmpfwbufsz, ret; | |
381 | unsigned int tries, offset; | |
382 | u8 base0, base1; | |
383 | void *tmpfwbuf = NULL; | |
384 | u8 *fwbuf; | |
9f72c1d9 | 385 | u16 len, blksz_dl = card->sd_blksz_fw_dl; |
789221ec BZ |
386 | int txlen = 0, tx_blocks = 0, count = 0; |
387 | ||
789221ec | 388 | ret = request_firmware(&fw_firmware, card->firmware, |
dcf47f3b | 389 | &card->func->dev); |
789221ec BZ |
390 | if ((ret < 0) || !fw_firmware) { |
391 | BT_ERR("request_firmware(firmware) failed, error code = %d", | |
dcf47f3b | 392 | ret); |
789221ec BZ |
393 | ret = -ENOENT; |
394 | goto done; | |
395 | } | |
396 | ||
397 | firmware = fw_firmware->data; | |
398 | firmwarelen = fw_firmware->size; | |
399 | ||
400 | BT_DBG("Downloading FW image (%d bytes)", firmwarelen); | |
401 | ||
402 | tmpfwbufsz = ALIGN_SZ(BTM_UPLD_SIZE, BTSDIO_DMA_ALIGN); | |
f8df39f1 | 403 | tmpfwbuf = kzalloc(tmpfwbufsz, GFP_KERNEL); |
789221ec BZ |
404 | if (!tmpfwbuf) { |
405 | BT_ERR("Unable to allocate buffer for firmware." | |
406 | " Terminating download"); | |
407 | ret = -ENOMEM; | |
408 | goto done; | |
409 | } | |
410 | ||
789221ec BZ |
411 | /* Ensure aligned firmware buffer */ |
412 | fwbuf = (u8 *) ALIGN_ADDR(tmpfwbuf, BTSDIO_DMA_ALIGN); | |
413 | ||
414 | /* Perform firmware data transfer */ | |
415 | offset = 0; | |
416 | do { | |
417 | ret = btmrvl_sdio_poll_card_status(card, | |
dcf47f3b | 418 | CARD_IO_READY | DN_LD_CARD_RDY); |
789221ec BZ |
419 | if (ret < 0) { |
420 | BT_ERR("FW download with helper poll status" | |
dcf47f3b | 421 | " timeout @ %d", offset); |
789221ec BZ |
422 | goto done; |
423 | } | |
424 | ||
425 | /* Check if there is more data ? */ | |
426 | if (offset >= firmwarelen) | |
427 | break; | |
428 | ||
429 | for (tries = 0; tries < MAX_POLL_TRIES; tries++) { | |
430 | base0 = sdio_readb(card->func, | |
9f72c1d9 | 431 | card->reg->sq_read_base_addr_a0, &ret); |
789221ec BZ |
432 | if (ret) { |
433 | BT_ERR("BASE0 register read failed:" | |
434 | " base0 = 0x%04X(%d)." | |
435 | " Terminating download", | |
436 | base0, base0); | |
437 | ret = -EIO; | |
438 | goto done; | |
439 | } | |
440 | base1 = sdio_readb(card->func, | |
9f72c1d9 | 441 | card->reg->sq_read_base_addr_a1, &ret); |
789221ec BZ |
442 | if (ret) { |
443 | BT_ERR("BASE1 register read failed:" | |
444 | " base1 = 0x%04X(%d)." | |
445 | " Terminating download", | |
446 | base1, base1); | |
447 | ret = -EIO; | |
448 | goto done; | |
449 | } | |
450 | ||
451 | len = (((u16) base1) << 8) | base0; | |
452 | if (len) | |
453 | break; | |
454 | ||
455 | udelay(10); | |
456 | } | |
457 | ||
458 | if (!len) | |
459 | break; | |
460 | else if (len > BTM_UPLD_SIZE) { | |
461 | BT_ERR("FW download failure @%d, invalid length %d", | |
dcf47f3b | 462 | offset, len); |
789221ec BZ |
463 | ret = -EINVAL; |
464 | goto done; | |
465 | } | |
466 | ||
467 | txlen = len; | |
468 | ||
469 | if (len & BIT(0)) { | |
470 | count++; | |
471 | if (count > MAX_WRITE_IOMEM_RETRY) { | |
472 | BT_ERR("FW download failure @%d, " | |
473 | "over max retry count", offset); | |
474 | ret = -EIO; | |
475 | goto done; | |
476 | } | |
477 | BT_ERR("FW CRC error indicated by the helper: " | |
478 | "len = 0x%04X, txlen = %d", len, txlen); | |
479 | len &= ~BIT(0); | |
480 | /* Set txlen to 0 so as to resend from same offset */ | |
481 | txlen = 0; | |
482 | } else { | |
483 | count = 0; | |
484 | ||
485 | /* Last block ? */ | |
486 | if (firmwarelen - offset < txlen) | |
487 | txlen = firmwarelen - offset; | |
488 | ||
ba34dd3d | 489 | tx_blocks = DIV_ROUND_UP(txlen, blksz_dl); |
789221ec BZ |
490 | |
491 | memcpy(fwbuf, &firmware[offset], txlen); | |
492 | } | |
493 | ||
494 | ret = sdio_writesb(card->func, card->ioport, fwbuf, | |
9f72c1d9 | 495 | tx_blocks * blksz_dl); |
789221ec BZ |
496 | |
497 | if (ret < 0) { | |
498 | BT_ERR("FW download, writesb(%d) failed @%d", | |
dcf47f3b | 499 | count, offset); |
9f72c1d9 KG |
500 | sdio_writeb(card->func, HOST_CMD53_FIN, |
501 | card->reg->cfg, &ret); | |
789221ec BZ |
502 | if (ret) |
503 | BT_ERR("writeb failed (CFG)"); | |
504 | } | |
505 | ||
506 | offset += txlen; | |
507 | } while (true); | |
508 | ||
509 | BT_DBG("FW download over, size %d bytes", offset); | |
510 | ||
511 | ret = 0; | |
512 | ||
513 | done: | |
514 | kfree(tmpfwbuf); | |
59f34fb3 | 515 | release_firmware(fw_firmware); |
789221ec BZ |
516 | return ret; |
517 | } | |
518 | ||
519 | static int btmrvl_sdio_card_to_host(struct btmrvl_private *priv) | |
520 | { | |
521 | u16 buf_len = 0; | |
42632805 | 522 | int ret, num_blocks, blksz; |
789221ec BZ |
523 | struct sk_buff *skb = NULL; |
524 | u32 type; | |
525 | u8 *payload = NULL; | |
526 | struct hci_dev *hdev = priv->btmrvl_dev.hcidev; | |
527 | struct btmrvl_sdio_card *card = priv->btmrvl_dev.card; | |
528 | ||
789221ec BZ |
529 | if (!card || !card->func) { |
530 | BT_ERR("card or function is NULL!"); | |
531 | ret = -EINVAL; | |
532 | goto exit; | |
533 | } | |
534 | ||
535 | /* Read the length of data to be transferred */ | |
536 | ret = btmrvl_sdio_read_rx_len(card, &buf_len); | |
537 | if (ret < 0) { | |
538 | BT_ERR("read rx_len failed"); | |
539 | ret = -EIO; | |
540 | goto exit; | |
541 | } | |
542 | ||
543 | blksz = SDIO_BLOCK_SIZE; | |
e678bad5 | 544 | num_blocks = DIV_ROUND_UP(buf_len, blksz); |
789221ec BZ |
545 | |
546 | if (buf_len <= SDIO_HEADER_LEN | |
42632805 | 547 | || (num_blocks * blksz) > ALLOC_BUF_SIZE) { |
789221ec BZ |
548 | BT_ERR("invalid packet length: %d", buf_len); |
549 | ret = -EINVAL; | |
550 | goto exit; | |
551 | } | |
552 | ||
553 | /* Allocate buffer */ | |
42632805 | 554 | skb = bt_skb_alloc(num_blocks * blksz + BTSDIO_DMA_ALIGN, GFP_ATOMIC); |
789221ec BZ |
555 | if (skb == NULL) { |
556 | BT_ERR("No free skb"); | |
6ea81c41 | 557 | ret = -ENOMEM; |
789221ec BZ |
558 | goto exit; |
559 | } | |
560 | ||
3318b236 BZ |
561 | if ((unsigned long) skb->data & (BTSDIO_DMA_ALIGN - 1)) { |
562 | skb_put(skb, (unsigned long) skb->data & | |
563 | (BTSDIO_DMA_ALIGN - 1)); | |
564 | skb_pull(skb, (unsigned long) skb->data & | |
565 | (BTSDIO_DMA_ALIGN - 1)); | |
789221ec BZ |
566 | } |
567 | ||
3318b236 | 568 | payload = skb->data; |
789221ec BZ |
569 | |
570 | ret = sdio_readsb(card->func, payload, card->ioport, | |
42632805 | 571 | num_blocks * blksz); |
789221ec BZ |
572 | if (ret < 0) { |
573 | BT_ERR("readsb failed: %d", ret); | |
574 | ret = -EIO; | |
575 | goto exit; | |
576 | } | |
577 | ||
578 | /* This is SDIO specific header length: byte[2][1][0], type: byte[3] | |
579 | * (HCI_COMMAND = 1, ACL_DATA = 2, SCO_DATA = 3, 0xFE = Vendor) | |
580 | */ | |
581 | ||
582 | buf_len = payload[0]; | |
9cb23dd4 AE |
583 | buf_len |= payload[1] << 8; |
584 | buf_len |= payload[2] << 16; | |
585 | ||
586 | if (buf_len > blksz * num_blocks) { | |
587 | BT_ERR("Skip incorrect packet: hdrlen %d buffer %d", | |
588 | buf_len, blksz * num_blocks); | |
589 | ret = -EIO; | |
590 | goto exit; | |
591 | } | |
592 | ||
789221ec BZ |
593 | type = payload[3]; |
594 | ||
595 | switch (type) { | |
596 | case HCI_ACLDATA_PKT: | |
597 | case HCI_SCODATA_PKT: | |
598 | case HCI_EVENT_PKT: | |
599 | bt_cb(skb)->pkt_type = type; | |
789221ec BZ |
600 | skb_put(skb, buf_len); |
601 | skb_pull(skb, SDIO_HEADER_LEN); | |
602 | ||
ea1e76a3 AE |
603 | if (type == HCI_EVENT_PKT) { |
604 | if (btmrvl_check_evtpkt(priv, skb)) | |
e1a26170 | 605 | hci_recv_frame(hdev, skb); |
2c2453f3 | 606 | } else { |
e1a26170 | 607 | hci_recv_frame(hdev, skb); |
2c2453f3 | 608 | } |
789221ec | 609 | |
789221ec BZ |
610 | hdev->stat.byte_rx += buf_len; |
611 | break; | |
612 | ||
613 | case MRVL_VENDOR_PKT: | |
614 | bt_cb(skb)->pkt_type = HCI_VENDOR_PKT; | |
789221ec BZ |
615 | skb_put(skb, buf_len); |
616 | skb_pull(skb, SDIO_HEADER_LEN); | |
617 | ||
618 | if (btmrvl_process_event(priv, skb)) | |
e1a26170 | 619 | hci_recv_frame(hdev, skb); |
789221ec BZ |
620 | |
621 | hdev->stat.byte_rx += buf_len; | |
622 | break; | |
623 | ||
624 | default: | |
af901ca1 | 625 | BT_ERR("Unknown packet type:%d", type); |
78c1b8e8 | 626 | BT_ERR("hex: %*ph", blksz * num_blocks, payload); |
789221ec BZ |
627 | |
628 | kfree_skb(skb); | |
629 | skb = NULL; | |
630 | break; | |
631 | } | |
632 | ||
633 | exit: | |
634 | if (ret) { | |
635 | hdev->stat.err_rx++; | |
7923296f | 636 | kfree_skb(skb); |
789221ec BZ |
637 | } |
638 | ||
789221ec BZ |
639 | return ret; |
640 | } | |
641 | ||
d1d10d78 | 642 | static int btmrvl_sdio_process_int_status(struct btmrvl_private *priv) |
789221ec | 643 | { |
d1d10d78 AK |
644 | ulong flags; |
645 | u8 ireg; | |
789221ec BZ |
646 | struct btmrvl_sdio_card *card = priv->btmrvl_dev.card; |
647 | ||
d1d10d78 AK |
648 | spin_lock_irqsave(&priv->driver_lock, flags); |
649 | ireg = sdio_ireg; | |
650 | sdio_ireg = 0; | |
651 | spin_unlock_irqrestore(&priv->driver_lock, flags); | |
789221ec | 652 | |
d1d10d78 AK |
653 | sdio_claim_host(card->func); |
654 | if (ireg & DN_LD_HOST_INT_STATUS) { | |
789221ec BZ |
655 | if (priv->btmrvl_dev.tx_dnld_rdy) |
656 | BT_DBG("tx_done already received: " | |
d1d10d78 | 657 | " int_status=0x%x", ireg); |
789221ec BZ |
658 | else |
659 | priv->btmrvl_dev.tx_dnld_rdy = true; | |
660 | } | |
661 | ||
d1d10d78 | 662 | if (ireg & UP_LD_HOST_INT_STATUS) |
789221ec BZ |
663 | btmrvl_sdio_card_to_host(priv); |
664 | ||
d1d10d78 | 665 | sdio_release_host(card->func); |
789221ec | 666 | |
d1d10d78 | 667 | return 0; |
789221ec BZ |
668 | } |
669 | ||
670 | static void btmrvl_sdio_interrupt(struct sdio_func *func) | |
671 | { | |
672 | struct btmrvl_private *priv; | |
789221ec | 673 | struct btmrvl_sdio_card *card; |
d1d10d78 | 674 | ulong flags; |
789221ec | 675 | u8 ireg = 0; |
d1d10d78 | 676 | int ret; |
789221ec | 677 | |
789221ec | 678 | card = sdio_get_drvdata(func); |
d1d10d78 AK |
679 | if (!card || !card->priv) { |
680 | BT_ERR("sbi_interrupt(%p) card or priv is " | |
681 | "NULL, card=%p\n", func, card); | |
682 | return; | |
683 | } | |
789221ec | 684 | |
d1d10d78 | 685 | priv = card->priv; |
789221ec | 686 | |
9f72c1d9 | 687 | ireg = sdio_readb(card->func, card->reg->host_intstatus, &ret); |
d1d10d78 AK |
688 | if (ret) { |
689 | BT_ERR("sdio_readb: read int status register failed"); | |
690 | return; | |
789221ec | 691 | } |
d1d10d78 AK |
692 | |
693 | if (ireg != 0) { | |
694 | /* | |
695 | * DN_LD_HOST_INT_STATUS and/or UP_LD_HOST_INT_STATUS | |
696 | * Clear the interrupt status register and re-enable the | |
697 | * interrupt. | |
698 | */ | |
699 | BT_DBG("ireg = 0x%x", ireg); | |
700 | ||
701 | sdio_writeb(card->func, ~(ireg) & (DN_LD_HOST_INT_STATUS | | |
702 | UP_LD_HOST_INT_STATUS), | |
9f72c1d9 | 703 | card->reg->host_intstatus, &ret); |
d1d10d78 AK |
704 | if (ret) { |
705 | BT_ERR("sdio_writeb: clear int status register failed"); | |
706 | return; | |
707 | } | |
708 | } | |
709 | ||
710 | spin_lock_irqsave(&priv->driver_lock, flags); | |
711 | sdio_ireg |= ireg; | |
712 | spin_unlock_irqrestore(&priv->driver_lock, flags); | |
713 | ||
714 | btmrvl_interrupt(priv); | |
789221ec BZ |
715 | } |
716 | ||
717 | static int btmrvl_sdio_register_dev(struct btmrvl_sdio_card *card) | |
718 | { | |
789221ec | 719 | struct sdio_func *func; |
dcf47f3b MH |
720 | u8 reg; |
721 | int ret = 0; | |
789221ec | 722 | |
789221ec BZ |
723 | if (!card || !card->func) { |
724 | BT_ERR("Error: card or function is NULL!"); | |
725 | ret = -EINVAL; | |
726 | goto failed; | |
727 | } | |
728 | ||
729 | func = card->func; | |
730 | ||
789221ec BZ |
731 | sdio_claim_host(func); |
732 | ||
733 | ret = sdio_enable_func(func); | |
734 | if (ret) { | |
735 | BT_ERR("sdio_enable_func() failed: ret=%d", ret); | |
736 | ret = -EIO; | |
737 | goto release_host; | |
738 | } | |
739 | ||
740 | ret = sdio_claim_irq(func, btmrvl_sdio_interrupt); | |
741 | if (ret) { | |
742 | BT_ERR("sdio_claim_irq failed: ret=%d", ret); | |
743 | ret = -EIO; | |
744 | goto disable_func; | |
745 | } | |
746 | ||
747 | ret = sdio_set_block_size(card->func, SDIO_BLOCK_SIZE); | |
748 | if (ret) { | |
749 | BT_ERR("cannot set SDIO block size"); | |
750 | ret = -EIO; | |
751 | goto release_irq; | |
752 | } | |
753 | ||
9f72c1d9 | 754 | reg = sdio_readb(func, card->reg->io_port_0, &ret); |
789221ec BZ |
755 | if (ret < 0) { |
756 | ret = -EIO; | |
757 | goto release_irq; | |
758 | } | |
759 | ||
760 | card->ioport = reg; | |
761 | ||
9f72c1d9 | 762 | reg = sdio_readb(func, card->reg->io_port_1, &ret); |
789221ec BZ |
763 | if (ret < 0) { |
764 | ret = -EIO; | |
765 | goto release_irq; | |
766 | } | |
767 | ||
768 | card->ioport |= (reg << 8); | |
769 | ||
9f72c1d9 | 770 | reg = sdio_readb(func, card->reg->io_port_2, &ret); |
789221ec BZ |
771 | if (ret < 0) { |
772 | ret = -EIO; | |
773 | goto release_irq; | |
774 | } | |
775 | ||
776 | card->ioport |= (reg << 16); | |
777 | ||
778 | BT_DBG("SDIO FUNC%d IO port: 0x%x", func->num, card->ioport); | |
779 | ||
780 | sdio_set_drvdata(func, card); | |
781 | ||
782 | sdio_release_host(func); | |
783 | ||
789221ec BZ |
784 | return 0; |
785 | ||
786 | release_irq: | |
787 | sdio_release_irq(func); | |
788 | ||
789 | disable_func: | |
790 | sdio_disable_func(func); | |
791 | ||
792 | release_host: | |
793 | sdio_release_host(func); | |
794 | ||
795 | failed: | |
789221ec BZ |
796 | return ret; |
797 | } | |
798 | ||
799 | static int btmrvl_sdio_unregister_dev(struct btmrvl_sdio_card *card) | |
800 | { | |
789221ec BZ |
801 | if (card && card->func) { |
802 | sdio_claim_host(card->func); | |
803 | sdio_release_irq(card->func); | |
804 | sdio_disable_func(card->func); | |
805 | sdio_release_host(card->func); | |
806 | sdio_set_drvdata(card->func, NULL); | |
807 | } | |
808 | ||
789221ec BZ |
809 | return 0; |
810 | } | |
811 | ||
812 | static int btmrvl_sdio_enable_host_int(struct btmrvl_sdio_card *card) | |
813 | { | |
814 | int ret; | |
815 | ||
9374253f | 816 | if (!card || !card->func) |
789221ec | 817 | return -EINVAL; |
789221ec BZ |
818 | |
819 | sdio_claim_host(card->func); | |
820 | ||
821 | ret = btmrvl_sdio_enable_host_int_mask(card, HIM_ENABLE); | |
822 | ||
823 | btmrvl_sdio_get_rx_unit(card); | |
824 | ||
825 | sdio_release_host(card->func); | |
826 | ||
789221ec BZ |
827 | return ret; |
828 | } | |
829 | ||
830 | static int btmrvl_sdio_disable_host_int(struct btmrvl_sdio_card *card) | |
831 | { | |
832 | int ret; | |
833 | ||
9374253f | 834 | if (!card || !card->func) |
789221ec | 835 | return -EINVAL; |
789221ec BZ |
836 | |
837 | sdio_claim_host(card->func); | |
838 | ||
839 | ret = btmrvl_sdio_disable_host_int_mask(card, HIM_DISABLE); | |
840 | ||
841 | sdio_release_host(card->func); | |
842 | ||
789221ec BZ |
843 | return ret; |
844 | } | |
845 | ||
846 | static int btmrvl_sdio_host_to_card(struct btmrvl_private *priv, | |
847 | u8 *payload, u16 nb) | |
848 | { | |
849 | struct btmrvl_sdio_card *card = priv->btmrvl_dev.card; | |
850 | int ret = 0; | |
851 | int buf_block_len; | |
852 | int blksz; | |
853 | int i = 0; | |
854 | u8 *buf = NULL; | |
855 | void *tmpbuf = NULL; | |
856 | int tmpbufsz; | |
857 | ||
789221ec BZ |
858 | if (!card || !card->func) { |
859 | BT_ERR("card or function is NULL!"); | |
789221ec BZ |
860 | return -EINVAL; |
861 | } | |
862 | ||
863 | buf = payload; | |
3318b236 | 864 | if ((unsigned long) payload & (BTSDIO_DMA_ALIGN - 1)) { |
789221ec | 865 | tmpbufsz = ALIGN_SZ(nb, BTSDIO_DMA_ALIGN); |
5959809d JL |
866 | tmpbuf = kzalloc(tmpbufsz, GFP_KERNEL); |
867 | if (!tmpbuf) | |
868 | return -ENOMEM; | |
789221ec BZ |
869 | buf = (u8 *) ALIGN_ADDR(tmpbuf, BTSDIO_DMA_ALIGN); |
870 | memcpy(buf, payload, nb); | |
871 | } | |
872 | ||
873 | blksz = SDIO_BLOCK_SIZE; | |
ba34dd3d | 874 | buf_block_len = DIV_ROUND_UP(nb, blksz); |
789221ec BZ |
875 | |
876 | sdio_claim_host(card->func); | |
877 | ||
878 | do { | |
879 | /* Transfer data to card */ | |
880 | ret = sdio_writesb(card->func, card->ioport, buf, | |
881 | buf_block_len * blksz); | |
882 | if (ret < 0) { | |
883 | i++; | |
884 | BT_ERR("i=%d writesb failed: %d", i, ret); | |
78c1b8e8 | 885 | BT_ERR("hex: %*ph", nb, payload); |
789221ec BZ |
886 | ret = -EIO; |
887 | if (i > MAX_WRITE_IOMEM_RETRY) | |
888 | goto exit; | |
889 | } | |
890 | } while (ret); | |
891 | ||
892 | priv->btmrvl_dev.tx_dnld_rdy = false; | |
893 | ||
894 | exit: | |
895 | sdio_release_host(card->func); | |
88d1a0cf | 896 | kfree(tmpbuf); |
789221ec | 897 | |
789221ec BZ |
898 | return ret; |
899 | } | |
900 | ||
901 | static int btmrvl_sdio_download_fw(struct btmrvl_sdio_card *card) | |
902 | { | |
faff7f74 | 903 | int ret; |
9f72c1d9 KG |
904 | u8 fws0; |
905 | int pollnum = MAX_POLL_TRIES; | |
789221ec | 906 | |
789221ec BZ |
907 | if (!card || !card->func) { |
908 | BT_ERR("card or function is NULL!"); | |
789221ec BZ |
909 | return -EINVAL; |
910 | } | |
789221ec BZ |
911 | |
912 | if (!btmrvl_sdio_verify_fw_download(card, 1)) { | |
913 | BT_DBG("Firmware already downloaded!"); | |
c1c999e2 | 914 | return 0; |
789221ec BZ |
915 | } |
916 | ||
c1c999e2 AF |
917 | sdio_claim_host(card->func); |
918 | ||
9f72c1d9 KG |
919 | /* Check if other function driver is downloading the firmware */ |
920 | fws0 = sdio_readb(card->func, card->reg->card_fw_status0, &ret); | |
789221ec | 921 | if (ret) { |
9f72c1d9 | 922 | BT_ERR("Failed to read FW downloading status!"); |
789221ec BZ |
923 | ret = -EIO; |
924 | goto done; | |
925 | } | |
9f72c1d9 KG |
926 | if (fws0) { |
927 | BT_DBG("BT not the winner (%#x). Skip FW downloading", fws0); | |
928 | ||
929 | /* Give other function more time to download the firmware */ | |
930 | pollnum *= 10; | |
931 | } else { | |
932 | if (card->helper) { | |
933 | ret = btmrvl_sdio_download_helper(card); | |
934 | if (ret) { | |
935 | BT_ERR("Failed to download helper!"); | |
936 | ret = -EIO; | |
937 | goto done; | |
938 | } | |
939 | } | |
789221ec | 940 | |
9f72c1d9 KG |
941 | if (btmrvl_sdio_download_fw_w_helper(card)) { |
942 | BT_ERR("Failed to download firmware!"); | |
943 | ret = -EIO; | |
944 | goto done; | |
945 | } | |
789221ec BZ |
946 | } |
947 | ||
c1c999e2 AF |
948 | sdio_release_host(card->func); |
949 | ||
69676b1c AF |
950 | /* |
951 | * winner or not, with this test the FW synchronizes when the | |
952 | * module can continue its initialization | |
953 | */ | |
9f72c1d9 | 954 | if (btmrvl_sdio_verify_fw_download(card, pollnum)) { |
789221ec | 955 | BT_ERR("FW failed to be active in time!"); |
c1c999e2 | 956 | return -ETIMEDOUT; |
789221ec BZ |
957 | } |
958 | ||
c1c999e2 AF |
959 | return 0; |
960 | ||
789221ec BZ |
961 | done: |
962 | sdio_release_host(card->func); | |
789221ec BZ |
963 | return ret; |
964 | } | |
965 | ||
966 | static int btmrvl_sdio_wakeup_fw(struct btmrvl_private *priv) | |
967 | { | |
968 | struct btmrvl_sdio_card *card = priv->btmrvl_dev.card; | |
969 | int ret = 0; | |
970 | ||
789221ec BZ |
971 | if (!card || !card->func) { |
972 | BT_ERR("card or function is NULL!"); | |
789221ec BZ |
973 | return -EINVAL; |
974 | } | |
975 | ||
976 | sdio_claim_host(card->func); | |
977 | ||
9f72c1d9 | 978 | sdio_writeb(card->func, HOST_POWER_UP, card->reg->cfg, &ret); |
789221ec BZ |
979 | |
980 | sdio_release_host(card->func); | |
981 | ||
982 | BT_DBG("wake up firmware"); | |
983 | ||
789221ec BZ |
984 | return ret; |
985 | } | |
986 | ||
987 | static int btmrvl_sdio_probe(struct sdio_func *func, | |
dcf47f3b | 988 | const struct sdio_device_id *id) |
789221ec BZ |
989 | { |
990 | int ret = 0; | |
991 | struct btmrvl_private *priv = NULL; | |
992 | struct btmrvl_sdio_card *card = NULL; | |
993 | ||
789221ec BZ |
994 | BT_INFO("vendor=0x%x, device=0x%x, class=%d, fn=%d", |
995 | id->vendor, id->device, id->class, func->num); | |
996 | ||
eb17ea3b SK |
997 | card = devm_kzalloc(&func->dev, sizeof(*card), GFP_KERNEL); |
998 | if (!card) | |
999 | return -ENOMEM; | |
789221ec BZ |
1000 | |
1001 | card->func = func; | |
1002 | ||
dcf47f3b MH |
1003 | if (id->driver_data) { |
1004 | struct btmrvl_sdio_device *data = (void *) id->driver_data; | |
9f72c1d9 | 1005 | card->helper = data->helper; |
dcf47f3b | 1006 | card->firmware = data->firmware; |
9f72c1d9 KG |
1007 | card->reg = data->reg; |
1008 | card->sd_blksz_fw_dl = data->sd_blksz_fw_dl; | |
dcf47f3b MH |
1009 | } |
1010 | ||
789221ec BZ |
1011 | if (btmrvl_sdio_register_dev(card) < 0) { |
1012 | BT_ERR("Failed to register BT device!"); | |
eb17ea3b | 1013 | return -ENODEV; |
789221ec BZ |
1014 | } |
1015 | ||
1016 | /* Disable the interrupts on the card */ | |
1017 | btmrvl_sdio_disable_host_int(card); | |
1018 | ||
1019 | if (btmrvl_sdio_download_fw(card)) { | |
1020 | BT_ERR("Downloading firmware failed!"); | |
1021 | ret = -ENODEV; | |
1022 | goto unreg_dev; | |
1023 | } | |
1024 | ||
789221ec BZ |
1025 | btmrvl_sdio_enable_host_int(card); |
1026 | ||
1027 | priv = btmrvl_add_card(card); | |
1028 | if (!priv) { | |
1029 | BT_ERR("Initializing card failed!"); | |
1030 | ret = -ENODEV; | |
1031 | goto disable_host_int; | |
1032 | } | |
1033 | ||
1034 | card->priv = priv; | |
1035 | ||
1036 | /* Initialize the interface specific function pointers */ | |
1037 | priv->hw_host_to_card = btmrvl_sdio_host_to_card; | |
1038 | priv->hw_wakeup_firmware = btmrvl_sdio_wakeup_fw; | |
d1d10d78 | 1039 | priv->hw_process_int_status = btmrvl_sdio_process_int_status; |
789221ec | 1040 | |
64061607 BZ |
1041 | if (btmrvl_register_hdev(priv)) { |
1042 | BT_ERR("Register hdev failed!"); | |
1043 | ret = -ENODEV; | |
1044 | goto disable_host_int; | |
1045 | } | |
1046 | ||
789221ec BZ |
1047 | return 0; |
1048 | ||
1049 | disable_host_int: | |
1050 | btmrvl_sdio_disable_host_int(card); | |
1051 | unreg_dev: | |
1052 | btmrvl_sdio_unregister_dev(card); | |
789221ec BZ |
1053 | return ret; |
1054 | } | |
1055 | ||
1056 | static void btmrvl_sdio_remove(struct sdio_func *func) | |
1057 | { | |
1058 | struct btmrvl_sdio_card *card; | |
1059 | ||
789221ec BZ |
1060 | if (func) { |
1061 | card = sdio_get_drvdata(func); | |
1062 | if (card) { | |
1063 | /* Send SHUTDOWN command & disable interrupt | |
1064 | * if user removes the module. | |
1065 | */ | |
1066 | if (user_rmmod) { | |
1067 | btmrvl_send_module_cfg_cmd(card->priv, | |
1068 | MODULE_SHUTDOWN_REQ); | |
1069 | btmrvl_sdio_disable_host_int(card); | |
1070 | } | |
1071 | BT_DBG("unregester dev"); | |
1072 | btmrvl_sdio_unregister_dev(card); | |
1073 | btmrvl_remove_card(card->priv); | |
789221ec BZ |
1074 | } |
1075 | } | |
789221ec BZ |
1076 | } |
1077 | ||
ba54a16f AK |
1078 | static int btmrvl_sdio_suspend(struct device *dev) |
1079 | { | |
1080 | struct sdio_func *func = dev_to_sdio_func(dev); | |
1081 | struct btmrvl_sdio_card *card; | |
1082 | struct btmrvl_private *priv; | |
1083 | mmc_pm_flag_t pm_flags; | |
1084 | struct hci_dev *hcidev; | |
1085 | ||
1086 | if (func) { | |
1087 | pm_flags = sdio_get_host_pm_caps(func); | |
1088 | BT_DBG("%s: suspend: PM flags = 0x%x", sdio_func_id(func), | |
1089 | pm_flags); | |
1090 | if (!(pm_flags & MMC_PM_KEEP_POWER)) { | |
1091 | BT_ERR("%s: cannot remain alive while suspended", | |
1092 | sdio_func_id(func)); | |
1093 | return -ENOSYS; | |
1094 | } | |
1095 | card = sdio_get_drvdata(func); | |
1096 | if (!card || !card->priv) { | |
1097 | BT_ERR("card or priv structure is not valid"); | |
1098 | return 0; | |
1099 | } | |
1100 | } else { | |
1101 | BT_ERR("sdio_func is not specified"); | |
1102 | return 0; | |
1103 | } | |
1104 | ||
1105 | priv = card->priv; | |
1106 | ||
1107 | if (priv->adapter->hs_state != HS_ACTIVATED) { | |
1108 | if (btmrvl_enable_hs(priv)) { | |
1109 | BT_ERR("HS not actived, suspend failed!"); | |
1110 | return -EBUSY; | |
1111 | } | |
1112 | } | |
1113 | hcidev = priv->btmrvl_dev.hcidev; | |
1114 | BT_DBG("%s: SDIO suspend", hcidev->name); | |
1115 | hci_suspend_dev(hcidev); | |
1116 | skb_queue_purge(&priv->adapter->tx_queue); | |
1117 | ||
1118 | priv->adapter->is_suspended = true; | |
1119 | ||
1120 | /* We will keep the power when hs enabled successfully */ | |
1121 | if (priv->adapter->hs_state == HS_ACTIVATED) { | |
1122 | BT_DBG("suspend with MMC_PM_KEEP_POWER"); | |
1123 | return sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER); | |
1124 | } else { | |
1125 | BT_DBG("suspend without MMC_PM_KEEP_POWER"); | |
1126 | return 0; | |
1127 | } | |
1128 | } | |
1129 | ||
1130 | static int btmrvl_sdio_resume(struct device *dev) | |
1131 | { | |
1132 | struct sdio_func *func = dev_to_sdio_func(dev); | |
1133 | struct btmrvl_sdio_card *card; | |
1134 | struct btmrvl_private *priv; | |
1135 | mmc_pm_flag_t pm_flags; | |
1136 | struct hci_dev *hcidev; | |
1137 | ||
1138 | if (func) { | |
1139 | pm_flags = sdio_get_host_pm_caps(func); | |
1140 | BT_DBG("%s: resume: PM flags = 0x%x", sdio_func_id(func), | |
1141 | pm_flags); | |
1142 | card = sdio_get_drvdata(func); | |
1143 | if (!card || !card->priv) { | |
1144 | BT_ERR("card or priv structure is not valid"); | |
1145 | return 0; | |
1146 | } | |
1147 | } else { | |
1148 | BT_ERR("sdio_func is not specified"); | |
1149 | return 0; | |
1150 | } | |
1151 | priv = card->priv; | |
1152 | ||
1153 | if (!priv->adapter->is_suspended) { | |
1154 | BT_DBG("device already resumed"); | |
1155 | return 0; | |
1156 | } | |
1157 | ||
1158 | priv->adapter->is_suspended = false; | |
1159 | hcidev = priv->btmrvl_dev.hcidev; | |
1160 | BT_DBG("%s: SDIO resume", hcidev->name); | |
1161 | hci_resume_dev(hcidev); | |
1162 | priv->hw_wakeup_firmware(priv); | |
1163 | priv->adapter->hs_state = HS_DEACTIVATED; | |
1164 | BT_DBG("%s: HS DEACTIVATED in resume!", hcidev->name); | |
1165 | ||
1166 | return 0; | |
1167 | } | |
1168 | ||
1169 | static const struct dev_pm_ops btmrvl_sdio_pm_ops = { | |
1170 | .suspend = btmrvl_sdio_suspend, | |
1171 | .resume = btmrvl_sdio_resume, | |
1172 | }; | |
1173 | ||
789221ec BZ |
1174 | static struct sdio_driver bt_mrvl_sdio = { |
1175 | .name = "btmrvl_sdio", | |
1176 | .id_table = btmrvl_sdio_ids, | |
1177 | .probe = btmrvl_sdio_probe, | |
1178 | .remove = btmrvl_sdio_remove, | |
ba54a16f AK |
1179 | .drv = { |
1180 | .owner = THIS_MODULE, | |
1181 | .pm = &btmrvl_sdio_pm_ops, | |
1182 | } | |
789221ec BZ |
1183 | }; |
1184 | ||
8e5b2308 | 1185 | static int __init btmrvl_sdio_init_module(void) |
789221ec | 1186 | { |
789221ec BZ |
1187 | if (sdio_register_driver(&bt_mrvl_sdio) != 0) { |
1188 | BT_ERR("SDIO Driver Registration Failed"); | |
789221ec BZ |
1189 | return -ENODEV; |
1190 | } | |
1191 | ||
1192 | /* Clear the flag in case user removes the card. */ | |
1193 | user_rmmod = 0; | |
1194 | ||
789221ec BZ |
1195 | return 0; |
1196 | } | |
1197 | ||
8e5b2308 | 1198 | static void __exit btmrvl_sdio_exit_module(void) |
789221ec | 1199 | { |
789221ec BZ |
1200 | /* Set the flag as user is removing this module. */ |
1201 | user_rmmod = 1; | |
1202 | ||
1203 | sdio_unregister_driver(&bt_mrvl_sdio); | |
789221ec BZ |
1204 | } |
1205 | ||
1206 | module_init(btmrvl_sdio_init_module); | |
1207 | module_exit(btmrvl_sdio_exit_module); | |
1208 | ||
1209 | MODULE_AUTHOR("Marvell International Ltd."); | |
9666fb35 | 1210 | MODULE_DESCRIPTION("Marvell BT-over-SDIO driver ver " VERSION); |
789221ec BZ |
1211 | MODULE_VERSION(VERSION); |
1212 | MODULE_LICENSE("GPL v2"); | |
77189df4 LR |
1213 | MODULE_FIRMWARE("mrvl/sd8688_helper.bin"); |
1214 | MODULE_FIRMWARE("mrvl/sd8688.bin"); | |
9f72c1d9 | 1215 | MODULE_FIRMWARE("mrvl/sd8787_uapsta.bin"); |
2ac654f7 | 1216 | MODULE_FIRMWARE("mrvl/sd8797_uapsta.bin"); |
22f2efed | 1217 | MODULE_FIRMWARE("mrvl/sd8897_uapsta.bin"); |