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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 | ||
5a0e3ad6 | 21 | #include <linux/slab.h> |
789221ec BZ |
22 | |
23 | #include <linux/mmc/sdio_ids.h> | |
24 | #include <linux/mmc/sdio_func.h> | |
a59b968e | 25 | #include <linux/module.h> |
789221ec BZ |
26 | |
27 | #include <net/bluetooth/bluetooth.h> | |
28 | #include <net/bluetooth/hci_core.h> | |
29 | ||
30 | #include "btmrvl_drv.h" | |
31 | #include "btmrvl_sdio.h" | |
32 | ||
33 | #define VERSION "1.0" | |
34 | ||
789221ec BZ |
35 | /* The btmrvl_sdio_remove() callback function is called |
36 | * when user removes this module from kernel space or ejects | |
37 | * the card from the slot. The driver handles these 2 cases | |
38 | * differently. | |
39 | * If the user is removing the module, a MODULE_SHUTDOWN_REQ | |
40 | * command is sent to firmware and interrupt will be disabled. | |
41 | * If the card is removed, there is no need to send command | |
42 | * or disable interrupt. | |
43 | * | |
44 | * The variable 'user_rmmod' is used to distinguish these two | |
45 | * scenarios. This flag is initialized as FALSE in case the card | |
46 | * is removed, and will be set to TRUE for module removal when | |
47 | * module_exit function is called. | |
48 | */ | |
49 | static u8 user_rmmod; | |
d1d10d78 | 50 | static u8 sdio_ireg; |
789221ec | 51 | |
9f72c1d9 KG |
52 | static const struct btmrvl_sdio_card_reg btmrvl_reg_8688 = { |
53 | .cfg = 0x03, | |
54 | .host_int_mask = 0x04, | |
55 | .host_intstatus = 0x05, | |
56 | .card_status = 0x20, | |
57 | .sq_read_base_addr_a0 = 0x10, | |
58 | .sq_read_base_addr_a1 = 0x11, | |
59 | .card_fw_status0 = 0x40, | |
60 | .card_fw_status1 = 0x41, | |
61 | .card_rx_len = 0x42, | |
62 | .card_rx_unit = 0x43, | |
63 | .io_port_0 = 0x00, | |
64 | .io_port_1 = 0x01, | |
65 | .io_port_2 = 0x02, | |
66 | }; | |
2ac654f7 | 67 | static const struct btmrvl_sdio_card_reg btmrvl_reg_87xx = { |
9f72c1d9 KG |
68 | .cfg = 0x00, |
69 | .host_int_mask = 0x02, | |
70 | .host_intstatus = 0x03, | |
71 | .card_status = 0x30, | |
72 | .sq_read_base_addr_a0 = 0x40, | |
73 | .sq_read_base_addr_a1 = 0x41, | |
74 | .card_revision = 0x5c, | |
75 | .card_fw_status0 = 0x60, | |
76 | .card_fw_status1 = 0x61, | |
77 | .card_rx_len = 0x62, | |
78 | .card_rx_unit = 0x63, | |
79 | .io_port_0 = 0x78, | |
80 | .io_port_1 = 0x79, | |
81 | .io_port_2 = 0x7a, | |
82 | }; | |
83 | ||
22f2efed BZ |
84 | static const struct btmrvl_sdio_card_reg btmrvl_reg_88xx = { |
85 | .cfg = 0x00, | |
86 | .host_int_mask = 0x02, | |
87 | .host_intstatus = 0x03, | |
88 | .card_status = 0x50, | |
89 | .sq_read_base_addr_a0 = 0x60, | |
90 | .sq_read_base_addr_a1 = 0x61, | |
91 | .card_revision = 0xbc, | |
92 | .card_fw_status0 = 0xc0, | |
93 | .card_fw_status1 = 0xc1, | |
94 | .card_rx_len = 0xc2, | |
95 | .card_rx_unit = 0xc3, | |
96 | .io_port_0 = 0xd8, | |
97 | .io_port_1 = 0xd9, | |
98 | .io_port_2 = 0xda, | |
99 | }; | |
100 | ||
c675786a | 101 | static const struct btmrvl_sdio_device btmrvl_sdio_sd8688 = { |
77189df4 LR |
102 | .helper = "mrvl/sd8688_helper.bin", |
103 | .firmware = "mrvl/sd8688.bin", | |
2cc86890 | 104 | .cal_data = NULL, |
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", | |
2cc86890 | 112 | .cal_data = NULL, |
2ac654f7 BZ |
113 | .reg = &btmrvl_reg_87xx, |
114 | .sd_blksz_fw_dl = 256, | |
115 | }; | |
116 | ||
117 | static const struct btmrvl_sdio_device btmrvl_sdio_sd8797 = { | |
118 | .helper = NULL, | |
119 | .firmware = "mrvl/sd8797_uapsta.bin", | |
2cc86890 | 120 | .cal_data = "mrvl/sd8797_caldata.conf", |
2ac654f7 | 121 | .reg = &btmrvl_reg_87xx, |
9f72c1d9 | 122 | .sd_blksz_fw_dl = 256, |
789221ec BZ |
123 | }; |
124 | ||
22f2efed BZ |
125 | static const struct btmrvl_sdio_device btmrvl_sdio_sd8897 = { |
126 | .helper = NULL, | |
127 | .firmware = "mrvl/sd8897_uapsta.bin", | |
2cc86890 | 128 | .cal_data = NULL, |
22f2efed BZ |
129 | .reg = &btmrvl_reg_88xx, |
130 | .sd_blksz_fw_dl = 256, | |
131 | }; | |
132 | ||
dcf47f3b MH |
133 | static const struct sdio_device_id btmrvl_sdio_ids[] = { |
134 | /* Marvell SD8688 Bluetooth device */ | |
135 | { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x9105), | |
c675786a | 136 | .driver_data = (unsigned long) &btmrvl_sdio_sd8688 }, |
9f72c1d9 KG |
137 | /* Marvell SD8787 Bluetooth device */ |
138 | { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x911A), | |
139 | .driver_data = (unsigned long) &btmrvl_sdio_sd8787 }, | |
37ed561e BZ |
140 | /* Marvell SD8787 Bluetooth AMP device */ |
141 | { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x911B), | |
142 | .driver_data = (unsigned long) &btmrvl_sdio_sd8787 }, | |
2ac654f7 BZ |
143 | /* Marvell SD8797 Bluetooth device */ |
144 | { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x912A), | |
145 | .driver_data = (unsigned long) &btmrvl_sdio_sd8797 }, | |
22f2efed BZ |
146 | /* Marvell SD8897 Bluetooth device */ |
147 | { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x912E), | |
148 | .driver_data = (unsigned long) &btmrvl_sdio_sd8897 }, | |
789221ec | 149 | |
dcf47f3b | 150 | { } /* Terminating entry */ |
789221ec BZ |
151 | }; |
152 | ||
dcf47f3b MH |
153 | MODULE_DEVICE_TABLE(sdio, btmrvl_sdio_ids); |
154 | ||
789221ec BZ |
155 | static int btmrvl_sdio_get_rx_unit(struct btmrvl_sdio_card *card) |
156 | { | |
157 | u8 reg; | |
158 | int ret; | |
159 | ||
9f72c1d9 | 160 | reg = sdio_readb(card->func, card->reg->card_rx_unit, &ret); |
789221ec BZ |
161 | if (!ret) |
162 | card->rx_unit = reg; | |
163 | ||
789221ec BZ |
164 | return ret; |
165 | } | |
166 | ||
167 | static int btmrvl_sdio_read_fw_status(struct btmrvl_sdio_card *card, u16 *dat) | |
168 | { | |
789221ec | 169 | u8 fws0, fws1; |
9374253f | 170 | int ret; |
789221ec BZ |
171 | |
172 | *dat = 0; | |
173 | ||
9f72c1d9 | 174 | fws0 = sdio_readb(card->func, card->reg->card_fw_status0, &ret); |
278be27f KV |
175 | if (ret) |
176 | return -EIO; | |
789221ec | 177 | |
9f72c1d9 | 178 | fws1 = sdio_readb(card->func, card->reg->card_fw_status1, &ret); |
9374253f | 179 | if (ret) |
789221ec | 180 | return -EIO; |
789221ec BZ |
181 | |
182 | *dat = (((u16) fws1) << 8) | fws0; | |
183 | ||
789221ec BZ |
184 | return 0; |
185 | } | |
186 | ||
187 | static int btmrvl_sdio_read_rx_len(struct btmrvl_sdio_card *card, u16 *dat) | |
188 | { | |
789221ec | 189 | u8 reg; |
9374253f | 190 | int ret; |
789221ec | 191 | |
9f72c1d9 | 192 | reg = sdio_readb(card->func, card->reg->card_rx_len, &ret); |
789221ec BZ |
193 | if (!ret) |
194 | *dat = (u16) reg << card->rx_unit; | |
195 | ||
789221ec BZ |
196 | return ret; |
197 | } | |
198 | ||
199 | static int btmrvl_sdio_enable_host_int_mask(struct btmrvl_sdio_card *card, | |
dcf47f3b | 200 | u8 mask) |
789221ec BZ |
201 | { |
202 | int ret; | |
203 | ||
9f72c1d9 | 204 | sdio_writeb(card->func, mask, card->reg->host_int_mask, &ret); |
789221ec BZ |
205 | if (ret) { |
206 | BT_ERR("Unable to enable the host interrupt!"); | |
207 | ret = -EIO; | |
208 | } | |
209 | ||
789221ec BZ |
210 | return ret; |
211 | } | |
212 | ||
213 | static int btmrvl_sdio_disable_host_int_mask(struct btmrvl_sdio_card *card, | |
dcf47f3b | 214 | u8 mask) |
789221ec | 215 | { |
789221ec | 216 | u8 host_int_mask; |
9374253f | 217 | int ret; |
789221ec | 218 | |
9f72c1d9 | 219 | host_int_mask = sdio_readb(card->func, card->reg->host_int_mask, &ret); |
9374253f MH |
220 | if (ret) |
221 | return -EIO; | |
789221ec BZ |
222 | |
223 | host_int_mask &= ~mask; | |
224 | ||
9f72c1d9 | 225 | sdio_writeb(card->func, host_int_mask, card->reg->host_int_mask, &ret); |
789221ec BZ |
226 | if (ret < 0) { |
227 | BT_ERR("Unable to disable the host interrupt!"); | |
9374253f | 228 | return -EIO; |
789221ec BZ |
229 | } |
230 | ||
9374253f | 231 | return 0; |
789221ec BZ |
232 | } |
233 | ||
234 | static int btmrvl_sdio_poll_card_status(struct btmrvl_sdio_card *card, u8 bits) | |
235 | { | |
236 | unsigned int tries; | |
789221ec | 237 | u8 status; |
9374253f | 238 | int ret; |
789221ec BZ |
239 | |
240 | for (tries = 0; tries < MAX_POLL_TRIES * 1000; tries++) { | |
9f72c1d9 | 241 | status = sdio_readb(card->func, card->reg->card_status, &ret); |
789221ec BZ |
242 | if (ret) |
243 | goto failed; | |
244 | if ((status & bits) == bits) | |
9374253f | 245 | return ret; |
789221ec BZ |
246 | |
247 | udelay(1); | |
248 | } | |
249 | ||
250 | ret = -ETIMEDOUT; | |
251 | ||
252 | failed: | |
253 | BT_ERR("FAILED! ret=%d", ret); | |
254 | ||
789221ec BZ |
255 | return ret; |
256 | } | |
257 | ||
258 | static int btmrvl_sdio_verify_fw_download(struct btmrvl_sdio_card *card, | |
dcf47f3b | 259 | int pollnum) |
789221ec | 260 | { |
789221ec | 261 | u16 firmwarestat; |
69676b1c | 262 | int tries, ret; |
789221ec | 263 | |
789221ec BZ |
264 | /* Wait for firmware to become ready */ |
265 | for (tries = 0; tries < pollnum; tries++) { | |
c1c999e2 AF |
266 | sdio_claim_host(card->func); |
267 | ret = btmrvl_sdio_read_fw_status(card, &firmwarestat); | |
268 | sdio_release_host(card->func); | |
269 | if (ret < 0) | |
789221ec BZ |
270 | continue; |
271 | ||
69676b1c AF |
272 | if (firmwarestat == FIRMWARE_READY) |
273 | return 0; | |
274 | ||
275 | msleep(10); | |
789221ec BZ |
276 | } |
277 | ||
69676b1c | 278 | return -ETIMEDOUT; |
789221ec BZ |
279 | } |
280 | ||
281 | static int btmrvl_sdio_download_helper(struct btmrvl_sdio_card *card) | |
282 | { | |
283 | const struct firmware *fw_helper = NULL; | |
284 | const u8 *helper = NULL; | |
285 | int ret; | |
286 | void *tmphlprbuf = NULL; | |
287 | int tmphlprbufsz, hlprblknow, helperlen; | |
288 | u8 *helperbuf; | |
289 | u32 tx_len; | |
290 | ||
789221ec | 291 | ret = request_firmware(&fw_helper, card->helper, |
dcf47f3b | 292 | &card->func->dev); |
789221ec BZ |
293 | if ((ret < 0) || !fw_helper) { |
294 | BT_ERR("request_firmware(helper) failed, error code = %d", | |
dcf47f3b | 295 | ret); |
789221ec BZ |
296 | ret = -ENOENT; |
297 | goto done; | |
298 | } | |
299 | ||
300 | helper = fw_helper->data; | |
301 | helperlen = fw_helper->size; | |
302 | ||
303 | BT_DBG("Downloading helper image (%d bytes), block size %d bytes", | |
dcf47f3b | 304 | helperlen, SDIO_BLOCK_SIZE); |
789221ec BZ |
305 | |
306 | tmphlprbufsz = ALIGN_SZ(BTM_UPLD_SIZE, BTSDIO_DMA_ALIGN); | |
307 | ||
f8df39f1 | 308 | tmphlprbuf = kzalloc(tmphlprbufsz, GFP_KERNEL); |
789221ec BZ |
309 | if (!tmphlprbuf) { |
310 | BT_ERR("Unable to allocate buffer for helper." | |
311 | " Terminating download"); | |
312 | ret = -ENOMEM; | |
313 | goto done; | |
314 | } | |
315 | ||
789221ec BZ |
316 | helperbuf = (u8 *) ALIGN_ADDR(tmphlprbuf, BTSDIO_DMA_ALIGN); |
317 | ||
318 | /* Perform helper data transfer */ | |
319 | tx_len = (FIRMWARE_TRANSFER_NBLOCK * SDIO_BLOCK_SIZE) | |
320 | - SDIO_HEADER_LEN; | |
321 | hlprblknow = 0; | |
322 | ||
323 | do { | |
324 | ret = btmrvl_sdio_poll_card_status(card, | |
325 | CARD_IO_READY | DN_LD_CARD_RDY); | |
326 | if (ret < 0) { | |
327 | BT_ERR("Helper download poll status timeout @ %d", | |
328 | hlprblknow); | |
329 | goto done; | |
330 | } | |
331 | ||
332 | /* Check if there is more data? */ | |
333 | if (hlprblknow >= helperlen) | |
334 | break; | |
335 | ||
336 | if (helperlen - hlprblknow < tx_len) | |
337 | tx_len = helperlen - hlprblknow; | |
338 | ||
339 | /* Little-endian */ | |
340 | helperbuf[0] = ((tx_len & 0x000000ff) >> 0); | |
341 | helperbuf[1] = ((tx_len & 0x0000ff00) >> 8); | |
342 | helperbuf[2] = ((tx_len & 0x00ff0000) >> 16); | |
343 | helperbuf[3] = ((tx_len & 0xff000000) >> 24); | |
344 | ||
345 | memcpy(&helperbuf[SDIO_HEADER_LEN], &helper[hlprblknow], | |
346 | tx_len); | |
347 | ||
348 | /* Now send the data */ | |
dcf47f3b MH |
349 | ret = sdio_writesb(card->func, card->ioport, helperbuf, |
350 | FIRMWARE_TRANSFER_NBLOCK * SDIO_BLOCK_SIZE); | |
789221ec BZ |
351 | if (ret < 0) { |
352 | BT_ERR("IO error during helper download @ %d", | |
353 | hlprblknow); | |
354 | goto done; | |
355 | } | |
356 | ||
357 | hlprblknow += tx_len; | |
358 | } while (true); | |
359 | ||
360 | BT_DBG("Transferring helper image EOF block"); | |
361 | ||
362 | memset(helperbuf, 0x0, SDIO_BLOCK_SIZE); | |
363 | ||
364 | ret = sdio_writesb(card->func, card->ioport, helperbuf, | |
dcf47f3b | 365 | SDIO_BLOCK_SIZE); |
789221ec BZ |
366 | if (ret < 0) { |
367 | BT_ERR("IO error in writing helper image EOF block"); | |
368 | goto done; | |
369 | } | |
370 | ||
371 | ret = 0; | |
372 | ||
373 | done: | |
374 | kfree(tmphlprbuf); | |
59f34fb3 | 375 | release_firmware(fw_helper); |
789221ec BZ |
376 | return ret; |
377 | } | |
378 | ||
379 | static int btmrvl_sdio_download_fw_w_helper(struct btmrvl_sdio_card *card) | |
380 | { | |
381 | const struct firmware *fw_firmware = NULL; | |
382 | const u8 *firmware = NULL; | |
383 | int firmwarelen, tmpfwbufsz, ret; | |
384 | unsigned int tries, offset; | |
385 | u8 base0, base1; | |
386 | void *tmpfwbuf = NULL; | |
387 | u8 *fwbuf; | |
9f72c1d9 | 388 | u16 len, blksz_dl = card->sd_blksz_fw_dl; |
789221ec BZ |
389 | int txlen = 0, tx_blocks = 0, count = 0; |
390 | ||
789221ec | 391 | ret = request_firmware(&fw_firmware, card->firmware, |
dcf47f3b | 392 | &card->func->dev); |
789221ec BZ |
393 | if ((ret < 0) || !fw_firmware) { |
394 | BT_ERR("request_firmware(firmware) failed, error code = %d", | |
dcf47f3b | 395 | ret); |
789221ec BZ |
396 | ret = -ENOENT; |
397 | goto done; | |
398 | } | |
399 | ||
400 | firmware = fw_firmware->data; | |
401 | firmwarelen = fw_firmware->size; | |
402 | ||
403 | BT_DBG("Downloading FW image (%d bytes)", firmwarelen); | |
404 | ||
405 | tmpfwbufsz = ALIGN_SZ(BTM_UPLD_SIZE, BTSDIO_DMA_ALIGN); | |
f8df39f1 | 406 | tmpfwbuf = kzalloc(tmpfwbufsz, GFP_KERNEL); |
789221ec BZ |
407 | if (!tmpfwbuf) { |
408 | BT_ERR("Unable to allocate buffer for firmware." | |
409 | " Terminating download"); | |
410 | ret = -ENOMEM; | |
411 | goto done; | |
412 | } | |
413 | ||
789221ec BZ |
414 | /* Ensure aligned firmware buffer */ |
415 | fwbuf = (u8 *) ALIGN_ADDR(tmpfwbuf, BTSDIO_DMA_ALIGN); | |
416 | ||
417 | /* Perform firmware data transfer */ | |
418 | offset = 0; | |
419 | do { | |
420 | ret = btmrvl_sdio_poll_card_status(card, | |
dcf47f3b | 421 | CARD_IO_READY | DN_LD_CARD_RDY); |
789221ec BZ |
422 | if (ret < 0) { |
423 | BT_ERR("FW download with helper poll status" | |
dcf47f3b | 424 | " timeout @ %d", offset); |
789221ec BZ |
425 | goto done; |
426 | } | |
427 | ||
428 | /* Check if there is more data ? */ | |
429 | if (offset >= firmwarelen) | |
430 | break; | |
431 | ||
432 | for (tries = 0; tries < MAX_POLL_TRIES; tries++) { | |
433 | base0 = sdio_readb(card->func, | |
9f72c1d9 | 434 | card->reg->sq_read_base_addr_a0, &ret); |
789221ec BZ |
435 | if (ret) { |
436 | BT_ERR("BASE0 register read failed:" | |
437 | " base0 = 0x%04X(%d)." | |
438 | " Terminating download", | |
439 | base0, base0); | |
440 | ret = -EIO; | |
441 | goto done; | |
442 | } | |
443 | base1 = sdio_readb(card->func, | |
9f72c1d9 | 444 | card->reg->sq_read_base_addr_a1, &ret); |
789221ec BZ |
445 | if (ret) { |
446 | BT_ERR("BASE1 register read failed:" | |
447 | " base1 = 0x%04X(%d)." | |
448 | " Terminating download", | |
449 | base1, base1); | |
450 | ret = -EIO; | |
451 | goto done; | |
452 | } | |
453 | ||
454 | len = (((u16) base1) << 8) | base0; | |
455 | if (len) | |
456 | break; | |
457 | ||
458 | udelay(10); | |
459 | } | |
460 | ||
461 | if (!len) | |
462 | break; | |
463 | else if (len > BTM_UPLD_SIZE) { | |
464 | BT_ERR("FW download failure @%d, invalid length %d", | |
dcf47f3b | 465 | offset, len); |
789221ec BZ |
466 | ret = -EINVAL; |
467 | goto done; | |
468 | } | |
469 | ||
470 | txlen = len; | |
471 | ||
472 | if (len & BIT(0)) { | |
473 | count++; | |
474 | if (count > MAX_WRITE_IOMEM_RETRY) { | |
475 | BT_ERR("FW download failure @%d, " | |
476 | "over max retry count", offset); | |
477 | ret = -EIO; | |
478 | goto done; | |
479 | } | |
480 | BT_ERR("FW CRC error indicated by the helper: " | |
481 | "len = 0x%04X, txlen = %d", len, txlen); | |
482 | len &= ~BIT(0); | |
483 | /* Set txlen to 0 so as to resend from same offset */ | |
484 | txlen = 0; | |
485 | } else { | |
486 | count = 0; | |
487 | ||
488 | /* Last block ? */ | |
489 | if (firmwarelen - offset < txlen) | |
490 | txlen = firmwarelen - offset; | |
491 | ||
ba34dd3d | 492 | tx_blocks = DIV_ROUND_UP(txlen, blksz_dl); |
789221ec BZ |
493 | |
494 | memcpy(fwbuf, &firmware[offset], txlen); | |
495 | } | |
496 | ||
497 | ret = sdio_writesb(card->func, card->ioport, fwbuf, | |
9f72c1d9 | 498 | tx_blocks * blksz_dl); |
789221ec BZ |
499 | |
500 | if (ret < 0) { | |
501 | BT_ERR("FW download, writesb(%d) failed @%d", | |
dcf47f3b | 502 | count, offset); |
9f72c1d9 KG |
503 | sdio_writeb(card->func, HOST_CMD53_FIN, |
504 | card->reg->cfg, &ret); | |
789221ec BZ |
505 | if (ret) |
506 | BT_ERR("writeb failed (CFG)"); | |
507 | } | |
508 | ||
509 | offset += txlen; | |
510 | } while (true); | |
511 | ||
512 | BT_DBG("FW download over, size %d bytes", offset); | |
513 | ||
514 | ret = 0; | |
515 | ||
516 | done: | |
517 | kfree(tmpfwbuf); | |
59f34fb3 | 518 | release_firmware(fw_firmware); |
789221ec BZ |
519 | return ret; |
520 | } | |
521 | ||
522 | static int btmrvl_sdio_card_to_host(struct btmrvl_private *priv) | |
523 | { | |
524 | u16 buf_len = 0; | |
42632805 | 525 | int ret, num_blocks, blksz; |
789221ec BZ |
526 | struct sk_buff *skb = NULL; |
527 | u32 type; | |
528 | u8 *payload = NULL; | |
529 | struct hci_dev *hdev = priv->btmrvl_dev.hcidev; | |
530 | struct btmrvl_sdio_card *card = priv->btmrvl_dev.card; | |
531 | ||
789221ec BZ |
532 | if (!card || !card->func) { |
533 | BT_ERR("card or function is NULL!"); | |
534 | ret = -EINVAL; | |
535 | goto exit; | |
536 | } | |
537 | ||
538 | /* Read the length of data to be transferred */ | |
539 | ret = btmrvl_sdio_read_rx_len(card, &buf_len); | |
540 | if (ret < 0) { | |
541 | BT_ERR("read rx_len failed"); | |
542 | ret = -EIO; | |
543 | goto exit; | |
544 | } | |
545 | ||
546 | blksz = SDIO_BLOCK_SIZE; | |
e678bad5 | 547 | num_blocks = DIV_ROUND_UP(buf_len, blksz); |
789221ec BZ |
548 | |
549 | if (buf_len <= SDIO_HEADER_LEN | |
42632805 | 550 | || (num_blocks * blksz) > ALLOC_BUF_SIZE) { |
789221ec BZ |
551 | BT_ERR("invalid packet length: %d", buf_len); |
552 | ret = -EINVAL; | |
553 | goto exit; | |
554 | } | |
555 | ||
556 | /* Allocate buffer */ | |
42632805 | 557 | skb = bt_skb_alloc(num_blocks * blksz + BTSDIO_DMA_ALIGN, GFP_ATOMIC); |
789221ec BZ |
558 | if (skb == NULL) { |
559 | BT_ERR("No free skb"); | |
6ea81c41 | 560 | ret = -ENOMEM; |
789221ec BZ |
561 | goto exit; |
562 | } | |
563 | ||
3318b236 BZ |
564 | if ((unsigned long) skb->data & (BTSDIO_DMA_ALIGN - 1)) { |
565 | skb_put(skb, (unsigned long) skb->data & | |
566 | (BTSDIO_DMA_ALIGN - 1)); | |
567 | skb_pull(skb, (unsigned long) skb->data & | |
568 | (BTSDIO_DMA_ALIGN - 1)); | |
789221ec BZ |
569 | } |
570 | ||
3318b236 | 571 | payload = skb->data; |
789221ec BZ |
572 | |
573 | ret = sdio_readsb(card->func, payload, card->ioport, | |
42632805 | 574 | num_blocks * blksz); |
789221ec BZ |
575 | if (ret < 0) { |
576 | BT_ERR("readsb failed: %d", ret); | |
577 | ret = -EIO; | |
578 | goto exit; | |
579 | } | |
580 | ||
581 | /* This is SDIO specific header length: byte[2][1][0], type: byte[3] | |
582 | * (HCI_COMMAND = 1, ACL_DATA = 2, SCO_DATA = 3, 0xFE = Vendor) | |
583 | */ | |
584 | ||
585 | buf_len = payload[0]; | |
9cb23dd4 AE |
586 | buf_len |= payload[1] << 8; |
587 | buf_len |= payload[2] << 16; | |
588 | ||
589 | if (buf_len > blksz * num_blocks) { | |
590 | BT_ERR("Skip incorrect packet: hdrlen %d buffer %d", | |
591 | buf_len, blksz * num_blocks); | |
592 | ret = -EIO; | |
593 | goto exit; | |
594 | } | |
595 | ||
789221ec BZ |
596 | type = payload[3]; |
597 | ||
598 | switch (type) { | |
599 | case HCI_ACLDATA_PKT: | |
600 | case HCI_SCODATA_PKT: | |
601 | case HCI_EVENT_PKT: | |
602 | bt_cb(skb)->pkt_type = type; | |
603 | skb->dev = (void *)hdev; | |
604 | skb_put(skb, buf_len); | |
605 | skb_pull(skb, SDIO_HEADER_LEN); | |
606 | ||
ea1e76a3 AE |
607 | if (type == HCI_EVENT_PKT) { |
608 | if (btmrvl_check_evtpkt(priv, skb)) | |
609 | hci_recv_frame(skb); | |
2c2453f3 | 610 | } else { |
ea1e76a3 | 611 | hci_recv_frame(skb); |
2c2453f3 | 612 | } |
789221ec | 613 | |
789221ec BZ |
614 | hdev->stat.byte_rx += buf_len; |
615 | break; | |
616 | ||
617 | case MRVL_VENDOR_PKT: | |
618 | bt_cb(skb)->pkt_type = HCI_VENDOR_PKT; | |
619 | skb->dev = (void *)hdev; | |
620 | skb_put(skb, buf_len); | |
621 | skb_pull(skb, SDIO_HEADER_LEN); | |
622 | ||
623 | if (btmrvl_process_event(priv, skb)) | |
624 | hci_recv_frame(skb); | |
625 | ||
626 | hdev->stat.byte_rx += buf_len; | |
627 | break; | |
628 | ||
629 | default: | |
af901ca1 | 630 | BT_ERR("Unknown packet type:%d", type); |
78c1b8e8 | 631 | BT_ERR("hex: %*ph", blksz * num_blocks, payload); |
789221ec BZ |
632 | |
633 | kfree_skb(skb); | |
634 | skb = NULL; | |
635 | break; | |
636 | } | |
637 | ||
638 | exit: | |
639 | if (ret) { | |
640 | hdev->stat.err_rx++; | |
7923296f | 641 | kfree_skb(skb); |
789221ec BZ |
642 | } |
643 | ||
789221ec BZ |
644 | return ret; |
645 | } | |
646 | ||
d1d10d78 | 647 | static int btmrvl_sdio_process_int_status(struct btmrvl_private *priv) |
789221ec | 648 | { |
d1d10d78 AK |
649 | ulong flags; |
650 | u8 ireg; | |
789221ec BZ |
651 | struct btmrvl_sdio_card *card = priv->btmrvl_dev.card; |
652 | ||
d1d10d78 AK |
653 | spin_lock_irqsave(&priv->driver_lock, flags); |
654 | ireg = sdio_ireg; | |
655 | sdio_ireg = 0; | |
656 | spin_unlock_irqrestore(&priv->driver_lock, flags); | |
789221ec | 657 | |
d1d10d78 AK |
658 | sdio_claim_host(card->func); |
659 | if (ireg & DN_LD_HOST_INT_STATUS) { | |
789221ec BZ |
660 | if (priv->btmrvl_dev.tx_dnld_rdy) |
661 | BT_DBG("tx_done already received: " | |
d1d10d78 | 662 | " int_status=0x%x", ireg); |
789221ec BZ |
663 | else |
664 | priv->btmrvl_dev.tx_dnld_rdy = true; | |
665 | } | |
666 | ||
d1d10d78 | 667 | if (ireg & UP_LD_HOST_INT_STATUS) |
789221ec BZ |
668 | btmrvl_sdio_card_to_host(priv); |
669 | ||
d1d10d78 | 670 | sdio_release_host(card->func); |
789221ec | 671 | |
d1d10d78 | 672 | return 0; |
789221ec BZ |
673 | } |
674 | ||
675 | static void btmrvl_sdio_interrupt(struct sdio_func *func) | |
676 | { | |
677 | struct btmrvl_private *priv; | |
789221ec | 678 | struct btmrvl_sdio_card *card; |
d1d10d78 | 679 | ulong flags; |
789221ec | 680 | u8 ireg = 0; |
d1d10d78 | 681 | int ret; |
789221ec | 682 | |
789221ec | 683 | card = sdio_get_drvdata(func); |
d1d10d78 AK |
684 | if (!card || !card->priv) { |
685 | BT_ERR("sbi_interrupt(%p) card or priv is " | |
686 | "NULL, card=%p\n", func, card); | |
687 | return; | |
688 | } | |
789221ec | 689 | |
d1d10d78 | 690 | priv = card->priv; |
789221ec | 691 | |
9f72c1d9 | 692 | ireg = sdio_readb(card->func, card->reg->host_intstatus, &ret); |
d1d10d78 AK |
693 | if (ret) { |
694 | BT_ERR("sdio_readb: read int status register failed"); | |
695 | return; | |
789221ec | 696 | } |
d1d10d78 AK |
697 | |
698 | if (ireg != 0) { | |
699 | /* | |
700 | * DN_LD_HOST_INT_STATUS and/or UP_LD_HOST_INT_STATUS | |
701 | * Clear the interrupt status register and re-enable the | |
702 | * interrupt. | |
703 | */ | |
704 | BT_DBG("ireg = 0x%x", ireg); | |
705 | ||
706 | sdio_writeb(card->func, ~(ireg) & (DN_LD_HOST_INT_STATUS | | |
707 | UP_LD_HOST_INT_STATUS), | |
9f72c1d9 | 708 | card->reg->host_intstatus, &ret); |
d1d10d78 AK |
709 | if (ret) { |
710 | BT_ERR("sdio_writeb: clear int status register failed"); | |
711 | return; | |
712 | } | |
713 | } | |
714 | ||
715 | spin_lock_irqsave(&priv->driver_lock, flags); | |
716 | sdio_ireg |= ireg; | |
717 | spin_unlock_irqrestore(&priv->driver_lock, flags); | |
718 | ||
719 | btmrvl_interrupt(priv); | |
789221ec BZ |
720 | } |
721 | ||
722 | static int btmrvl_sdio_register_dev(struct btmrvl_sdio_card *card) | |
723 | { | |
789221ec | 724 | struct sdio_func *func; |
dcf47f3b MH |
725 | u8 reg; |
726 | int ret = 0; | |
789221ec | 727 | |
789221ec BZ |
728 | if (!card || !card->func) { |
729 | BT_ERR("Error: card or function is NULL!"); | |
730 | ret = -EINVAL; | |
731 | goto failed; | |
732 | } | |
733 | ||
734 | func = card->func; | |
735 | ||
789221ec BZ |
736 | sdio_claim_host(func); |
737 | ||
738 | ret = sdio_enable_func(func); | |
739 | if (ret) { | |
740 | BT_ERR("sdio_enable_func() failed: ret=%d", ret); | |
741 | ret = -EIO; | |
742 | goto release_host; | |
743 | } | |
744 | ||
745 | ret = sdio_claim_irq(func, btmrvl_sdio_interrupt); | |
746 | if (ret) { | |
747 | BT_ERR("sdio_claim_irq failed: ret=%d", ret); | |
748 | ret = -EIO; | |
749 | goto disable_func; | |
750 | } | |
751 | ||
752 | ret = sdio_set_block_size(card->func, SDIO_BLOCK_SIZE); | |
753 | if (ret) { | |
754 | BT_ERR("cannot set SDIO block size"); | |
755 | ret = -EIO; | |
756 | goto release_irq; | |
757 | } | |
758 | ||
9f72c1d9 | 759 | reg = sdio_readb(func, card->reg->io_port_0, &ret); |
789221ec BZ |
760 | if (ret < 0) { |
761 | ret = -EIO; | |
762 | goto release_irq; | |
763 | } | |
764 | ||
765 | card->ioport = reg; | |
766 | ||
9f72c1d9 | 767 | reg = sdio_readb(func, card->reg->io_port_1, &ret); |
789221ec BZ |
768 | if (ret < 0) { |
769 | ret = -EIO; | |
770 | goto release_irq; | |
771 | } | |
772 | ||
773 | card->ioport |= (reg << 8); | |
774 | ||
9f72c1d9 | 775 | reg = sdio_readb(func, card->reg->io_port_2, &ret); |
789221ec BZ |
776 | if (ret < 0) { |
777 | ret = -EIO; | |
778 | goto release_irq; | |
779 | } | |
780 | ||
781 | card->ioport |= (reg << 16); | |
782 | ||
783 | BT_DBG("SDIO FUNC%d IO port: 0x%x", func->num, card->ioport); | |
784 | ||
785 | sdio_set_drvdata(func, card); | |
786 | ||
787 | sdio_release_host(func); | |
788 | ||
789221ec BZ |
789 | return 0; |
790 | ||
791 | release_irq: | |
792 | sdio_release_irq(func); | |
793 | ||
794 | disable_func: | |
795 | sdio_disable_func(func); | |
796 | ||
797 | release_host: | |
798 | sdio_release_host(func); | |
799 | ||
800 | failed: | |
789221ec BZ |
801 | return ret; |
802 | } | |
803 | ||
804 | static int btmrvl_sdio_unregister_dev(struct btmrvl_sdio_card *card) | |
805 | { | |
789221ec BZ |
806 | if (card && card->func) { |
807 | sdio_claim_host(card->func); | |
808 | sdio_release_irq(card->func); | |
809 | sdio_disable_func(card->func); | |
810 | sdio_release_host(card->func); | |
811 | sdio_set_drvdata(card->func, NULL); | |
812 | } | |
813 | ||
789221ec BZ |
814 | return 0; |
815 | } | |
816 | ||
817 | static int btmrvl_sdio_enable_host_int(struct btmrvl_sdio_card *card) | |
818 | { | |
819 | int ret; | |
820 | ||
9374253f | 821 | if (!card || !card->func) |
789221ec | 822 | return -EINVAL; |
789221ec BZ |
823 | |
824 | sdio_claim_host(card->func); | |
825 | ||
826 | ret = btmrvl_sdio_enable_host_int_mask(card, HIM_ENABLE); | |
827 | ||
828 | btmrvl_sdio_get_rx_unit(card); | |
829 | ||
830 | sdio_release_host(card->func); | |
831 | ||
789221ec BZ |
832 | return ret; |
833 | } | |
834 | ||
835 | static int btmrvl_sdio_disable_host_int(struct btmrvl_sdio_card *card) | |
836 | { | |
837 | int ret; | |
838 | ||
9374253f | 839 | if (!card || !card->func) |
789221ec | 840 | return -EINVAL; |
789221ec BZ |
841 | |
842 | sdio_claim_host(card->func); | |
843 | ||
844 | ret = btmrvl_sdio_disable_host_int_mask(card, HIM_DISABLE); | |
845 | ||
846 | sdio_release_host(card->func); | |
847 | ||
789221ec BZ |
848 | return ret; |
849 | } | |
850 | ||
851 | static int btmrvl_sdio_host_to_card(struct btmrvl_private *priv, | |
852 | u8 *payload, u16 nb) | |
853 | { | |
854 | struct btmrvl_sdio_card *card = priv->btmrvl_dev.card; | |
855 | int ret = 0; | |
856 | int buf_block_len; | |
857 | int blksz; | |
858 | int i = 0; | |
859 | u8 *buf = NULL; | |
860 | void *tmpbuf = NULL; | |
861 | int tmpbufsz; | |
862 | ||
789221ec BZ |
863 | if (!card || !card->func) { |
864 | BT_ERR("card or function is NULL!"); | |
789221ec BZ |
865 | return -EINVAL; |
866 | } | |
867 | ||
868 | buf = payload; | |
3318b236 | 869 | if ((unsigned long) payload & (BTSDIO_DMA_ALIGN - 1)) { |
789221ec | 870 | tmpbufsz = ALIGN_SZ(nb, BTSDIO_DMA_ALIGN); |
5959809d JL |
871 | tmpbuf = kzalloc(tmpbufsz, GFP_KERNEL); |
872 | if (!tmpbuf) | |
873 | return -ENOMEM; | |
789221ec BZ |
874 | buf = (u8 *) ALIGN_ADDR(tmpbuf, BTSDIO_DMA_ALIGN); |
875 | memcpy(buf, payload, nb); | |
876 | } | |
877 | ||
878 | blksz = SDIO_BLOCK_SIZE; | |
ba34dd3d | 879 | buf_block_len = DIV_ROUND_UP(nb, blksz); |
789221ec BZ |
880 | |
881 | sdio_claim_host(card->func); | |
882 | ||
883 | do { | |
884 | /* Transfer data to card */ | |
885 | ret = sdio_writesb(card->func, card->ioport, buf, | |
886 | buf_block_len * blksz); | |
887 | if (ret < 0) { | |
888 | i++; | |
889 | BT_ERR("i=%d writesb failed: %d", i, ret); | |
78c1b8e8 | 890 | BT_ERR("hex: %*ph", nb, payload); |
789221ec BZ |
891 | ret = -EIO; |
892 | if (i > MAX_WRITE_IOMEM_RETRY) | |
893 | goto exit; | |
894 | } | |
895 | } while (ret); | |
896 | ||
897 | priv->btmrvl_dev.tx_dnld_rdy = false; | |
898 | ||
899 | exit: | |
900 | sdio_release_host(card->func); | |
88d1a0cf | 901 | kfree(tmpbuf); |
789221ec | 902 | |
789221ec BZ |
903 | return ret; |
904 | } | |
905 | ||
906 | static int btmrvl_sdio_download_fw(struct btmrvl_sdio_card *card) | |
907 | { | |
faff7f74 | 908 | int ret; |
9f72c1d9 KG |
909 | u8 fws0; |
910 | int pollnum = MAX_POLL_TRIES; | |
789221ec | 911 | |
789221ec BZ |
912 | if (!card || !card->func) { |
913 | BT_ERR("card or function is NULL!"); | |
789221ec BZ |
914 | return -EINVAL; |
915 | } | |
789221ec BZ |
916 | |
917 | if (!btmrvl_sdio_verify_fw_download(card, 1)) { | |
918 | BT_DBG("Firmware already downloaded!"); | |
c1c999e2 | 919 | return 0; |
789221ec BZ |
920 | } |
921 | ||
c1c999e2 AF |
922 | sdio_claim_host(card->func); |
923 | ||
9f72c1d9 KG |
924 | /* Check if other function driver is downloading the firmware */ |
925 | fws0 = sdio_readb(card->func, card->reg->card_fw_status0, &ret); | |
789221ec | 926 | if (ret) { |
9f72c1d9 | 927 | BT_ERR("Failed to read FW downloading status!"); |
789221ec BZ |
928 | ret = -EIO; |
929 | goto done; | |
930 | } | |
9f72c1d9 KG |
931 | if (fws0) { |
932 | BT_DBG("BT not the winner (%#x). Skip FW downloading", fws0); | |
933 | ||
934 | /* Give other function more time to download the firmware */ | |
935 | pollnum *= 10; | |
936 | } else { | |
937 | if (card->helper) { | |
938 | ret = btmrvl_sdio_download_helper(card); | |
939 | if (ret) { | |
940 | BT_ERR("Failed to download helper!"); | |
941 | ret = -EIO; | |
942 | goto done; | |
943 | } | |
944 | } | |
789221ec | 945 | |
9f72c1d9 KG |
946 | if (btmrvl_sdio_download_fw_w_helper(card)) { |
947 | BT_ERR("Failed to download firmware!"); | |
948 | ret = -EIO; | |
949 | goto done; | |
950 | } | |
789221ec BZ |
951 | } |
952 | ||
c1c999e2 AF |
953 | sdio_release_host(card->func); |
954 | ||
69676b1c AF |
955 | /* |
956 | * winner or not, with this test the FW synchronizes when the | |
957 | * module can continue its initialization | |
958 | */ | |
9f72c1d9 | 959 | if (btmrvl_sdio_verify_fw_download(card, pollnum)) { |
789221ec | 960 | BT_ERR("FW failed to be active in time!"); |
c1c999e2 | 961 | return -ETIMEDOUT; |
789221ec BZ |
962 | } |
963 | ||
c1c999e2 AF |
964 | return 0; |
965 | ||
789221ec BZ |
966 | done: |
967 | sdio_release_host(card->func); | |
789221ec BZ |
968 | return ret; |
969 | } | |
970 | ||
971 | static int btmrvl_sdio_wakeup_fw(struct btmrvl_private *priv) | |
972 | { | |
973 | struct btmrvl_sdio_card *card = priv->btmrvl_dev.card; | |
974 | int ret = 0; | |
975 | ||
789221ec BZ |
976 | if (!card || !card->func) { |
977 | BT_ERR("card or function is NULL!"); | |
789221ec BZ |
978 | return -EINVAL; |
979 | } | |
980 | ||
981 | sdio_claim_host(card->func); | |
982 | ||
9f72c1d9 | 983 | sdio_writeb(card->func, HOST_POWER_UP, card->reg->cfg, &ret); |
789221ec BZ |
984 | |
985 | sdio_release_host(card->func); | |
986 | ||
987 | BT_DBG("wake up firmware"); | |
988 | ||
789221ec BZ |
989 | return ret; |
990 | } | |
991 | ||
992 | static int btmrvl_sdio_probe(struct sdio_func *func, | |
dcf47f3b | 993 | const struct sdio_device_id *id) |
789221ec BZ |
994 | { |
995 | int ret = 0; | |
996 | struct btmrvl_private *priv = NULL; | |
997 | struct btmrvl_sdio_card *card = NULL; | |
998 | ||
789221ec BZ |
999 | BT_INFO("vendor=0x%x, device=0x%x, class=%d, fn=%d", |
1000 | id->vendor, id->device, id->class, func->num); | |
1001 | ||
eb17ea3b SK |
1002 | card = devm_kzalloc(&func->dev, sizeof(*card), GFP_KERNEL); |
1003 | if (!card) | |
1004 | return -ENOMEM; | |
789221ec BZ |
1005 | |
1006 | card->func = func; | |
1007 | ||
dcf47f3b MH |
1008 | if (id->driver_data) { |
1009 | struct btmrvl_sdio_device *data = (void *) id->driver_data; | |
9f72c1d9 | 1010 | card->helper = data->helper; |
dcf47f3b | 1011 | card->firmware = data->firmware; |
2cc86890 | 1012 | card->cal_data = data->cal_data; |
9f72c1d9 KG |
1013 | card->reg = data->reg; |
1014 | card->sd_blksz_fw_dl = data->sd_blksz_fw_dl; | |
dcf47f3b MH |
1015 | } |
1016 | ||
789221ec BZ |
1017 | if (btmrvl_sdio_register_dev(card) < 0) { |
1018 | BT_ERR("Failed to register BT device!"); | |
eb17ea3b | 1019 | return -ENODEV; |
789221ec BZ |
1020 | } |
1021 | ||
1022 | /* Disable the interrupts on the card */ | |
1023 | btmrvl_sdio_disable_host_int(card); | |
1024 | ||
1025 | if (btmrvl_sdio_download_fw(card)) { | |
1026 | BT_ERR("Downloading firmware failed!"); | |
1027 | ret = -ENODEV; | |
1028 | goto unreg_dev; | |
1029 | } | |
1030 | ||
789221ec BZ |
1031 | btmrvl_sdio_enable_host_int(card); |
1032 | ||
1033 | priv = btmrvl_add_card(card); | |
1034 | if (!priv) { | |
1035 | BT_ERR("Initializing card failed!"); | |
1036 | ret = -ENODEV; | |
1037 | goto disable_host_int; | |
1038 | } | |
1039 | ||
1040 | card->priv = priv; | |
2cc86890 AK |
1041 | priv->btmrvl_dev.dev = &card->func->dev; |
1042 | priv->btmrvl_dev.cal_data = card->cal_data; | |
789221ec BZ |
1043 | |
1044 | /* Initialize the interface specific function pointers */ | |
1045 | priv->hw_host_to_card = btmrvl_sdio_host_to_card; | |
1046 | priv->hw_wakeup_firmware = btmrvl_sdio_wakeup_fw; | |
d1d10d78 | 1047 | priv->hw_process_int_status = btmrvl_sdio_process_int_status; |
789221ec | 1048 | |
64061607 BZ |
1049 | if (btmrvl_register_hdev(priv)) { |
1050 | BT_ERR("Register hdev failed!"); | |
1051 | ret = -ENODEV; | |
1052 | goto disable_host_int; | |
1053 | } | |
1054 | ||
789221ec BZ |
1055 | return 0; |
1056 | ||
1057 | disable_host_int: | |
1058 | btmrvl_sdio_disable_host_int(card); | |
1059 | unreg_dev: | |
1060 | btmrvl_sdio_unregister_dev(card); | |
789221ec BZ |
1061 | return ret; |
1062 | } | |
1063 | ||
1064 | static void btmrvl_sdio_remove(struct sdio_func *func) | |
1065 | { | |
1066 | struct btmrvl_sdio_card *card; | |
1067 | ||
789221ec BZ |
1068 | if (func) { |
1069 | card = sdio_get_drvdata(func); | |
1070 | if (card) { | |
1071 | /* Send SHUTDOWN command & disable interrupt | |
1072 | * if user removes the module. | |
1073 | */ | |
1074 | if (user_rmmod) { | |
1075 | btmrvl_send_module_cfg_cmd(card->priv, | |
1076 | MODULE_SHUTDOWN_REQ); | |
1077 | btmrvl_sdio_disable_host_int(card); | |
1078 | } | |
1079 | BT_DBG("unregester dev"); | |
1080 | btmrvl_sdio_unregister_dev(card); | |
1081 | btmrvl_remove_card(card->priv); | |
789221ec BZ |
1082 | } |
1083 | } | |
789221ec BZ |
1084 | } |
1085 | ||
ba54a16f AK |
1086 | static int btmrvl_sdio_suspend(struct device *dev) |
1087 | { | |
1088 | struct sdio_func *func = dev_to_sdio_func(dev); | |
1089 | struct btmrvl_sdio_card *card; | |
1090 | struct btmrvl_private *priv; | |
1091 | mmc_pm_flag_t pm_flags; | |
1092 | struct hci_dev *hcidev; | |
1093 | ||
1094 | if (func) { | |
1095 | pm_flags = sdio_get_host_pm_caps(func); | |
1096 | BT_DBG("%s: suspend: PM flags = 0x%x", sdio_func_id(func), | |
1097 | pm_flags); | |
1098 | if (!(pm_flags & MMC_PM_KEEP_POWER)) { | |
1099 | BT_ERR("%s: cannot remain alive while suspended", | |
1100 | sdio_func_id(func)); | |
1101 | return -ENOSYS; | |
1102 | } | |
1103 | card = sdio_get_drvdata(func); | |
1104 | if (!card || !card->priv) { | |
1105 | BT_ERR("card or priv structure is not valid"); | |
1106 | return 0; | |
1107 | } | |
1108 | } else { | |
1109 | BT_ERR("sdio_func is not specified"); | |
1110 | return 0; | |
1111 | } | |
1112 | ||
1113 | priv = card->priv; | |
1114 | ||
1115 | if (priv->adapter->hs_state != HS_ACTIVATED) { | |
1116 | if (btmrvl_enable_hs(priv)) { | |
1117 | BT_ERR("HS not actived, suspend failed!"); | |
1118 | return -EBUSY; | |
1119 | } | |
1120 | } | |
1121 | hcidev = priv->btmrvl_dev.hcidev; | |
1122 | BT_DBG("%s: SDIO suspend", hcidev->name); | |
1123 | hci_suspend_dev(hcidev); | |
1124 | skb_queue_purge(&priv->adapter->tx_queue); | |
1125 | ||
1126 | priv->adapter->is_suspended = true; | |
1127 | ||
1128 | /* We will keep the power when hs enabled successfully */ | |
1129 | if (priv->adapter->hs_state == HS_ACTIVATED) { | |
1130 | BT_DBG("suspend with MMC_PM_KEEP_POWER"); | |
1131 | return sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER); | |
1132 | } else { | |
1133 | BT_DBG("suspend without MMC_PM_KEEP_POWER"); | |
1134 | return 0; | |
1135 | } | |
1136 | } | |
1137 | ||
1138 | static int btmrvl_sdio_resume(struct device *dev) | |
1139 | { | |
1140 | struct sdio_func *func = dev_to_sdio_func(dev); | |
1141 | struct btmrvl_sdio_card *card; | |
1142 | struct btmrvl_private *priv; | |
1143 | mmc_pm_flag_t pm_flags; | |
1144 | struct hci_dev *hcidev; | |
1145 | ||
1146 | if (func) { | |
1147 | pm_flags = sdio_get_host_pm_caps(func); | |
1148 | BT_DBG("%s: resume: PM flags = 0x%x", sdio_func_id(func), | |
1149 | pm_flags); | |
1150 | card = sdio_get_drvdata(func); | |
1151 | if (!card || !card->priv) { | |
1152 | BT_ERR("card or priv structure is not valid"); | |
1153 | return 0; | |
1154 | } | |
1155 | } else { | |
1156 | BT_ERR("sdio_func is not specified"); | |
1157 | return 0; | |
1158 | } | |
1159 | priv = card->priv; | |
1160 | ||
1161 | if (!priv->adapter->is_suspended) { | |
1162 | BT_DBG("device already resumed"); | |
1163 | return 0; | |
1164 | } | |
1165 | ||
1166 | priv->adapter->is_suspended = false; | |
1167 | hcidev = priv->btmrvl_dev.hcidev; | |
1168 | BT_DBG("%s: SDIO resume", hcidev->name); | |
1169 | hci_resume_dev(hcidev); | |
1170 | priv->hw_wakeup_firmware(priv); | |
1171 | priv->adapter->hs_state = HS_DEACTIVATED; | |
1172 | BT_DBG("%s: HS DEACTIVATED in resume!", hcidev->name); | |
1173 | ||
1174 | return 0; | |
1175 | } | |
1176 | ||
1177 | static const struct dev_pm_ops btmrvl_sdio_pm_ops = { | |
1178 | .suspend = btmrvl_sdio_suspend, | |
1179 | .resume = btmrvl_sdio_resume, | |
1180 | }; | |
1181 | ||
789221ec BZ |
1182 | static struct sdio_driver bt_mrvl_sdio = { |
1183 | .name = "btmrvl_sdio", | |
1184 | .id_table = btmrvl_sdio_ids, | |
1185 | .probe = btmrvl_sdio_probe, | |
1186 | .remove = btmrvl_sdio_remove, | |
ba54a16f AK |
1187 | .drv = { |
1188 | .owner = THIS_MODULE, | |
1189 | .pm = &btmrvl_sdio_pm_ops, | |
1190 | } | |
789221ec BZ |
1191 | }; |
1192 | ||
8e5b2308 | 1193 | static int __init btmrvl_sdio_init_module(void) |
789221ec | 1194 | { |
789221ec BZ |
1195 | if (sdio_register_driver(&bt_mrvl_sdio) != 0) { |
1196 | BT_ERR("SDIO Driver Registration Failed"); | |
789221ec BZ |
1197 | return -ENODEV; |
1198 | } | |
1199 | ||
1200 | /* Clear the flag in case user removes the card. */ | |
1201 | user_rmmod = 0; | |
1202 | ||
789221ec BZ |
1203 | return 0; |
1204 | } | |
1205 | ||
8e5b2308 | 1206 | static void __exit btmrvl_sdio_exit_module(void) |
789221ec | 1207 | { |
789221ec BZ |
1208 | /* Set the flag as user is removing this module. */ |
1209 | user_rmmod = 1; | |
1210 | ||
1211 | sdio_unregister_driver(&bt_mrvl_sdio); | |
789221ec BZ |
1212 | } |
1213 | ||
1214 | module_init(btmrvl_sdio_init_module); | |
1215 | module_exit(btmrvl_sdio_exit_module); | |
1216 | ||
1217 | MODULE_AUTHOR("Marvell International Ltd."); | |
9666fb35 | 1218 | MODULE_DESCRIPTION("Marvell BT-over-SDIO driver ver " VERSION); |
789221ec BZ |
1219 | MODULE_VERSION(VERSION); |
1220 | MODULE_LICENSE("GPL v2"); | |
77189df4 LR |
1221 | MODULE_FIRMWARE("mrvl/sd8688_helper.bin"); |
1222 | MODULE_FIRMWARE("mrvl/sd8688.bin"); | |
9f72c1d9 | 1223 | MODULE_FIRMWARE("mrvl/sd8787_uapsta.bin"); |
2ac654f7 | 1224 | MODULE_FIRMWARE("mrvl/sd8797_uapsta.bin"); |
2cc86890 | 1225 | MODULE_FIRMWARE("mrvl/sd8797_caldata.conf"); |
22f2efed | 1226 | MODULE_FIRMWARE("mrvl/sd8897_uapsta.bin"); |