projects / linux-2.6-block.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
nvme: fix Kconfig description for BLK_DEV_NVME_SCSI
[linux-2.6-block.git] / drivers / bluetooth / btmrvl_sdio.c
CommitLineData
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>
dc759613 27#include <linux/devcoredump.h>
789221ec
BZ		 28
29#include <net/bluetooth/bluetooth.h>
30#include <net/bluetooth/hci_core.h>
31
32#include "btmrvl_drv.h"
33#include "btmrvl_sdio.h"
34
35#define VERSION "1.0"
36
dc759613
XH		 37static struct memory_type_mapping mem_type_mapping_tbl[] = {
38 {"ITCM", NULL, 0, 0xF0},
39 {"DTCM", NULL, 0, 0xF1},
40 {"SQRAM", NULL, 0, 0xF2},
41 {"APU", NULL, 0, 0xF3},
42 {"CIU", NULL, 0, 0xF4},
43 {"ICU", NULL, 0, 0xF5},
44 {"MAC", NULL, 0, 0xF6},
45 {"EXT7", NULL, 0, 0xF7},
46 {"EXT8", NULL, 0, 0xF8},
47 {"EXT9", NULL, 0, 0xF9},
48 {"EXT10", NULL, 0, 0xFA},
49 {"EXT11", NULL, 0, 0xFB},
50 {"EXT12", NULL, 0, 0xFC},
51 {"EXT13", NULL, 0, 0xFD},
52 {"EXTLAST", NULL, 0, 0xFE},
53};
54
789221ec
BZ		 55/* The btmrvl_sdio_remove() callback function is called
56 * when user removes this module from kernel space or ejects
57 * the card from the slot. The driver handles these 2 cases
58 * differently.
59 * If the user is removing the module, a MODULE_SHUTDOWN_REQ
60 * command is sent to firmware and interrupt will be disabled.
61 * If the card is removed, there is no need to send command
62 * or disable interrupt.
63 *
64 * The variable 'user_rmmod' is used to distinguish these two
65 * scenarios. This flag is initialized as FALSE in case the card
66 * is removed, and will be set to TRUE for module removal when
67 * module_exit function is called.
68 */
69static u8 user_rmmod;
d1d10d78 70static u8 sdio_ireg;
789221ec 71
9f72c1d9
KG		 72static const struct btmrvl_sdio_card_reg btmrvl_reg_8688 = {
73 .cfg = 0x03,
74 .host_int_mask = 0x04,
75 .host_intstatus = 0x05,
76 .card_status = 0x20,
77 .sq_read_base_addr_a0 = 0x10,
78 .sq_read_base_addr_a1 = 0x11,
79 .card_fw_status0 = 0x40,
80 .card_fw_status1 = 0x41,
81 .card_rx_len = 0x42,
82 .card_rx_unit = 0x43,
83 .io_port_0 = 0x00,
84 .io_port_1 = 0x01,
85 .io_port_2 = 0x02,
0d367408 86 .int_read_to_clear = false,
9f72c1d9 87};
2ac654f7 88static const struct btmrvl_sdio_card_reg btmrvl_reg_87xx = {
9f72c1d9
KG		 89 .cfg = 0x00,
90 .host_int_mask = 0x02,
91 .host_intstatus = 0x03,
92 .card_status = 0x30,
93 .sq_read_base_addr_a0 = 0x40,
94 .sq_read_base_addr_a1 = 0x41,
95 .card_revision = 0x5c,
96 .card_fw_status0 = 0x60,
97 .card_fw_status1 = 0x61,
98 .card_rx_len = 0x62,
99 .card_rx_unit = 0x63,
100 .io_port_0 = 0x78,
101 .io_port_1 = 0x79,
102 .io_port_2 = 0x7a,
0d367408 103 .int_read_to_clear = false,
9f72c1d9
KG		 104};
105
3907d558
XH		 106static const struct btmrvl_sdio_card_reg btmrvl_reg_8887 = {
107 .cfg = 0x00,
108 .host_int_mask = 0x08,
109 .host_intstatus = 0x0C,
110 .card_status = 0x5C,
111 .sq_read_base_addr_a0 = 0x6C,
112 .sq_read_base_addr_a1 = 0x6D,
113 .card_revision = 0xC8,
114 .card_fw_status0 = 0x88,
115 .card_fw_status1 = 0x89,
116 .card_rx_len = 0x8A,
117 .card_rx_unit = 0x8B,
118 .io_port_0 = 0xE4,
119 .io_port_1 = 0xE5,
120 .io_port_2 = 0xE6,
121 .int_read_to_clear = true,
122 .host_int_rsr = 0x04,
123 .card_misc_cfg = 0xD8,
124};
125
1e3e492c 126static const struct btmrvl_sdio_card_reg btmrvl_reg_8897 = {
22f2efed
BZ		 127 .cfg = 0x00,
128 .host_int_mask = 0x02,
129 .host_intstatus = 0x03,
130 .card_status = 0x50,
131 .sq_read_base_addr_a0 = 0x60,
132 .sq_read_base_addr_a1 = 0x61,
133 .card_revision = 0xbc,
134 .card_fw_status0 = 0xc0,
135 .card_fw_status1 = 0xc1,
136 .card_rx_len = 0xc2,
137 .card_rx_unit = 0xc3,
138 .io_port_0 = 0xd8,
139 .io_port_1 = 0xd9,
140 .io_port_2 = 0xda,
0d367408
BZ		 141 .int_read_to_clear = true,
142 .host_int_rsr = 0x01,
143 .card_misc_cfg = 0xcc,
dc759613
XH		 144 .fw_dump_ctrl = 0xe2,
145 .fw_dump_start = 0xe3,
146 .fw_dump_end = 0xea,
22f2efed
BZ		 147};
148
f0ef6748
AK		 149static const struct btmrvl_sdio_card_reg btmrvl_reg_8997 = {
150 .cfg = 0x00,
151 .host_int_mask = 0x08,
152 .host_intstatus = 0x0c,
153 .card_status = 0x5c,
154 .sq_read_base_addr_a0 = 0xf8,
155 .sq_read_base_addr_a1 = 0xf9,
156 .card_revision = 0xc8,
157 .card_fw_status0 = 0xe8,
158 .card_fw_status1 = 0xe9,
159 .card_rx_len = 0xea,
160 .card_rx_unit = 0xeb,
161 .io_port_0 = 0xe4,
162 .io_port_1 = 0xe5,
163 .io_port_2 = 0xe6,
164 .int_read_to_clear = true,
165 .host_int_rsr = 0x04,
166 .card_misc_cfg = 0xD8,
167 .fw_dump_ctrl = 0xf0,
168 .fw_dump_start = 0xf1,
169 .fw_dump_end = 0xf8,
170};
171
c675786a 172static const struct btmrvl_sdio_device btmrvl_sdio_sd8688 = {
77189df4
LR		 173 .helper = "mrvl/sd8688_helper.bin",
174 .firmware = "mrvl/sd8688.bin",
9f72c1d9 175 .reg = &btmrvl_reg_8688,
4df82b59 176 .support_pscan_win_report = false,
9f72c1d9 177 .sd_blksz_fw_dl = 64,
dc759613 178 .supports_fw_dump = false,
9f72c1d9
KG		 179};
180
181static const struct btmrvl_sdio_device btmrvl_sdio_sd8787 = {
182 .helper = NULL,
183 .firmware = "mrvl/sd8787_uapsta.bin",
2ac654f7 184 .reg = &btmrvl_reg_87xx,
4df82b59 185 .support_pscan_win_report = false,
2ac654f7 186 .sd_blksz_fw_dl = 256,
dc759613 187 .supports_fw_dump = false,
2ac654f7
BZ		 188};
189
190static const struct btmrvl_sdio_device btmrvl_sdio_sd8797 = {
191 .helper = NULL,
192 .firmware = "mrvl/sd8797_uapsta.bin",
193 .reg = &btmrvl_reg_87xx,
4df82b59 194 .support_pscan_win_report = false,
9f72c1d9 195 .sd_blksz_fw_dl = 256,
dc759613 196 .supports_fw_dump = false,
789221ec
BZ		 197};
198
3907d558
XH		 199static const struct btmrvl_sdio_device btmrvl_sdio_sd8887 = {
200 .helper = NULL,
201 .firmware = "mrvl/sd8887_uapsta.bin",
202 .reg = &btmrvl_reg_8887,
203 .support_pscan_win_report = true,
204 .sd_blksz_fw_dl = 256,
dc759613 205 .supports_fw_dump = false,
3907d558
XH		 206};
207
22f2efed
BZ		 208static const struct btmrvl_sdio_device btmrvl_sdio_sd8897 = {
209 .helper = NULL,
210 .firmware = "mrvl/sd8897_uapsta.bin",
1e3e492c 211 .reg = &btmrvl_reg_8897,
4df82b59 212 .support_pscan_win_report = true,
22f2efed 213 .sd_blksz_fw_dl = 256,
dc759613 214 .supports_fw_dump = true,
22f2efed
BZ		 215};
216
f0ef6748
AK		 217static const struct btmrvl_sdio_device btmrvl_sdio_sd8997 = {
218 .helper = NULL,
219 .firmware = "mrvl/sd8997_uapsta.bin",
220 .reg = &btmrvl_reg_8997,
221 .support_pscan_win_report = true,
222 .sd_blksz_fw_dl = 256,
223 .supports_fw_dump = true,
224};
225
dcf47f3b
MH		 226static const struct sdio_device_id btmrvl_sdio_ids[] = {
227 /* Marvell SD8688 Bluetooth device */
228 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x9105),
53d6cfa5 229 .driver_data = (unsigned long)&btmrvl_sdio_sd8688 },
9f72c1d9
KG		 230 /* Marvell SD8787 Bluetooth device */
231 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x911A),
53d6cfa5 232 .driver_data = (unsigned long)&btmrvl_sdio_sd8787 },
37ed561e
BZ		 233 /* Marvell SD8787 Bluetooth AMP device */
234 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x911B),
53d6cfa5 235 .driver_data = (unsigned long)&btmrvl_sdio_sd8787 },
2ac654f7
BZ		 236 /* Marvell SD8797 Bluetooth device */
237 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x912A),
53d6cfa5 238 .driver_data = (unsigned long)&btmrvl_sdio_sd8797 },
3907d558
XH		 239 /* Marvell SD8887 Bluetooth device */
240 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x9136),
241 .driver_data = (unsigned long)&btmrvl_sdio_sd8887 },
22f2efed
BZ		 242 /* Marvell SD8897 Bluetooth device */
243 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x912E),
53d6cfa5 244 .driver_data = (unsigned long)&btmrvl_sdio_sd8897 },
f0ef6748
AK		 245 /* Marvell SD8997 Bluetooth device */
246 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x9142),
247 .driver_data = (unsigned long)&btmrvl_sdio_sd8997 },
789221ec 248
dcf47f3b 249 { } /* Terminating entry */
789221ec
BZ		 250};
251
dcf47f3b
MH		 252MODULE_DEVICE_TABLE(sdio, btmrvl_sdio_ids);
253
789221ec
BZ		 254static int btmrvl_sdio_get_rx_unit(struct btmrvl_sdio_card *card)
255{
256 u8 reg;
257 int ret;
258
9f72c1d9 259 reg = sdio_readb(card->func, card->reg->card_rx_unit, &ret);
789221ec
BZ		 260 if (!ret)
261 card->rx_unit = reg;
262
789221ec
BZ		 263 return ret;
264}
265
266static int btmrvl_sdio_read_fw_status(struct btmrvl_sdio_card *card, u16 *dat)
267{
789221ec 268 u8 fws0, fws1;
9374253f 269 int ret;
789221ec
BZ		 270
271 *dat = 0;
272
9f72c1d9 273 fws0 = sdio_readb(card->func, card->reg->card_fw_status0, &ret);
278be27f
KV		 274 if (ret)
275 return -EIO;
789221ec 276
9f72c1d9 277 fws1 = sdio_readb(card->func, card->reg->card_fw_status1, &ret);
9374253f 278 if (ret)
789221ec 279 return -EIO;
789221ec
BZ		 280
281 *dat = (((u16) fws1) << 8) | fws0;
282
789221ec
BZ		 283 return 0;
284}
285
286static int btmrvl_sdio_read_rx_len(struct btmrvl_sdio_card *card, u16 *dat)
287{
789221ec 288 u8 reg;
9374253f 289 int ret;
789221ec 290
9f72c1d9 291 reg = sdio_readb(card->func, card->reg->card_rx_len, &ret);
789221ec
BZ		 292 if (!ret)
293 *dat = (u16) reg << card->rx_unit;
294
789221ec
BZ		 295 return ret;
296}
297
298static int btmrvl_sdio_enable_host_int_mask(struct btmrvl_sdio_card *card,
dcf47f3b 299 u8 mask)
789221ec
BZ		 300{
301 int ret;
302
9f72c1d9 303 sdio_writeb(card->func, mask, card->reg->host_int_mask, &ret);
789221ec
BZ		 304 if (ret) {
305 BT_ERR("Unable to enable the host interrupt!");
306 ret = -EIO;
307 }
308
789221ec
BZ		 309 return ret;
310}
311
312static int btmrvl_sdio_disable_host_int_mask(struct btmrvl_sdio_card *card,
dcf47f3b 313 u8 mask)
789221ec 314{
789221ec 315 u8 host_int_mask;
9374253f 316 int ret;
789221ec 317
9f72c1d9 318 host_int_mask = sdio_readb(card->func, card->reg->host_int_mask, &ret);
9374253f
MH		 319 if (ret)
320 return -EIO;
789221ec
BZ		 321
322 host_int_mask &= ~mask;
323
9f72c1d9 324 sdio_writeb(card->func, host_int_mask, card->reg->host_int_mask, &ret);
789221ec
BZ		 325 if (ret < 0) {
326 BT_ERR("Unable to disable the host interrupt!");
9374253f 327 return -EIO;
789221ec
BZ		 328 }
329
9374253f 330 return 0;
789221ec
BZ		 331}
332
333static int btmrvl_sdio_poll_card_status(struct btmrvl_sdio_card *card, u8 bits)
334{
335 unsigned int tries;
789221ec 336 u8 status;
9374253f 337 int ret;
789221ec
BZ		 338
339 for (tries = 0; tries < MAX_POLL_TRIES * 1000; tries++) {
9f72c1d9 340 status = sdio_readb(card->func, card->reg->card_status, &ret);
789221ec
BZ		 341 if (ret)
342 goto failed;
343 if ((status & bits) == bits)
9374253f 344 return ret;
789221ec
BZ		 345
346 udelay(1);
347 }
348
349 ret = -ETIMEDOUT;
350
351failed:
352 BT_ERR("FAILED! ret=%d", ret);
353
789221ec
BZ		 354 return ret;
355}
356
357static int btmrvl_sdio_verify_fw_download(struct btmrvl_sdio_card *card,
dcf47f3b 358 int pollnum)
789221ec 359{
789221ec 360 u16 firmwarestat;
69676b1c 361 int tries, ret;
789221ec 362
789221ec
BZ		 363 /* Wait for firmware to become ready */
364 for (tries = 0; tries < pollnum; tries++) {
c1c999e2
AF		 365 sdio_claim_host(card->func);
366 ret = btmrvl_sdio_read_fw_status(card, &firmwarestat);
367 sdio_release_host(card->func);
368 if (ret < 0)
789221ec
BZ		 369 continue;
370
69676b1c
AF		 371 if (firmwarestat == FIRMWARE_READY)
372 return 0;
373
374 msleep(10);
789221ec
BZ		 375 }
376
69676b1c 377 return -ETIMEDOUT;
789221ec
BZ		 378}
379
380static int btmrvl_sdio_download_helper(struct btmrvl_sdio_card *card)
381{
382 const struct firmware *fw_helper = NULL;
383 const u8 *helper = NULL;
384 int ret;
385 void *tmphlprbuf = NULL;
386 int tmphlprbufsz, hlprblknow, helperlen;
387 u8 *helperbuf;
388 u32 tx_len;
389
789221ec 390 ret = request_firmware(&fw_helper, card->helper,
dcf47f3b 391 &card->func->dev);
789221ec
BZ		 392 if ((ret < 0) || !fw_helper) {
393 BT_ERR("request_firmware(helper) failed, error code = %d",
dcf47f3b 394 ret);
789221ec
BZ		 395 ret = -ENOENT;
396 goto done;
397 }
398
399 helper = fw_helper->data;
400 helperlen = fw_helper->size;
401
402 BT_DBG("Downloading helper image (%d bytes), block size %d bytes",
dcf47f3b 403 helperlen, SDIO_BLOCK_SIZE);
789221ec
BZ		 404
405 tmphlprbufsz = ALIGN_SZ(BTM_UPLD_SIZE, BTSDIO_DMA_ALIGN);
406
f8df39f1 407 tmphlprbuf = kzalloc(tmphlprbufsz, GFP_KERNEL);
789221ec
BZ		 408 if (!tmphlprbuf) {
409 BT_ERR("Unable to allocate buffer for helper."
410 " Terminating download");
411 ret = -ENOMEM;
412 goto done;
413 }
414
789221ec
BZ		 415 helperbuf = (u8 *) ALIGN_ADDR(tmphlprbuf, BTSDIO_DMA_ALIGN);
416
417 /* Perform helper data transfer */
418 tx_len = (FIRMWARE_TRANSFER_NBLOCK * SDIO_BLOCK_SIZE)
419 - SDIO_HEADER_LEN;
420 hlprblknow = 0;
421
422 do {
423 ret = btmrvl_sdio_poll_card_status(card,
424 CARD_IO_READY | DN_LD_CARD_RDY);
425 if (ret < 0) {
426 BT_ERR("Helper download poll status timeout @ %d",
427 hlprblknow);
428 goto done;
429 }
430
431 /* Check if there is more data? */
432 if (hlprblknow >= helperlen)
433 break;
434
435 if (helperlen - hlprblknow < tx_len)
436 tx_len = helperlen - hlprblknow;
437
438 /* Little-endian */
439 helperbuf[0] = ((tx_len & 0x000000ff) >> 0);
440 helperbuf[1] = ((tx_len & 0x0000ff00) >> 8);
441 helperbuf[2] = ((tx_len & 0x00ff0000) >> 16);
442 helperbuf[3] = ((tx_len & 0xff000000) >> 24);
443
444 memcpy(&helperbuf[SDIO_HEADER_LEN], &helper[hlprblknow],
445 tx_len);
446
447 /* Now send the data */
dcf47f3b
MH		 448 ret = sdio_writesb(card->func, card->ioport, helperbuf,
449 FIRMWARE_TRANSFER_NBLOCK * SDIO_BLOCK_SIZE);
789221ec
BZ		 450 if (ret < 0) {
451 BT_ERR("IO error during helper download @ %d",
452 hlprblknow);
453 goto done;
454 }
455
456 hlprblknow += tx_len;
457 } while (true);
458
459 BT_DBG("Transferring helper image EOF block");
460
461 memset(helperbuf, 0x0, SDIO_BLOCK_SIZE);
462
463 ret = sdio_writesb(card->func, card->ioport, helperbuf,
dcf47f3b 464 SDIO_BLOCK_SIZE);
789221ec
BZ		 465 if (ret < 0) {
466 BT_ERR("IO error in writing helper image EOF block");
467 goto done;
468 }
469
470 ret = 0;
471
472done:
473 kfree(tmphlprbuf);
59f34fb3 474 release_firmware(fw_helper);
789221ec
BZ		 475 return ret;
476}
477
478static int btmrvl_sdio_download_fw_w_helper(struct btmrvl_sdio_card *card)
479{
480 const struct firmware *fw_firmware = NULL;
481 const u8 *firmware = NULL;
482 int firmwarelen, tmpfwbufsz, ret;
483 unsigned int tries, offset;
484 u8 base0, base1;
485 void *tmpfwbuf = NULL;
486 u8 *fwbuf;
9f72c1d9 487 u16 len, blksz_dl = card->sd_blksz_fw_dl;
789221ec
BZ		 488 int txlen = 0, tx_blocks = 0, count = 0;
489
789221ec 490 ret = request_firmware(&fw_firmware, card->firmware,
dcf47f3b 491 &card->func->dev);
789221ec
BZ		 492 if ((ret < 0) || !fw_firmware) {
493 BT_ERR("request_firmware(firmware) failed, error code = %d",
dcf47f3b 494 ret);
789221ec
BZ		 495 ret = -ENOENT;
496 goto done;
497 }
498
499 firmware = fw_firmware->data;
500 firmwarelen = fw_firmware->size;
501
502 BT_DBG("Downloading FW image (%d bytes)", firmwarelen);
503
504 tmpfwbufsz = ALIGN_SZ(BTM_UPLD_SIZE, BTSDIO_DMA_ALIGN);
f8df39f1 505 tmpfwbuf = kzalloc(tmpfwbufsz, GFP_KERNEL);
789221ec
BZ		 506 if (!tmpfwbuf) {
507 BT_ERR("Unable to allocate buffer for firmware."
508 " Terminating download");
509 ret = -ENOMEM;
510 goto done;
511 }
512
789221ec
BZ		 513 /* Ensure aligned firmware buffer */
514 fwbuf = (u8 *) ALIGN_ADDR(tmpfwbuf, BTSDIO_DMA_ALIGN);
515
516 /* Perform firmware data transfer */
517 offset = 0;
518 do {
519 ret = btmrvl_sdio_poll_card_status(card,
dcf47f3b 520 CARD_IO_READY | DN_LD_CARD_RDY);
789221ec
BZ		 521 if (ret < 0) {
522 BT_ERR("FW download with helper poll status"
dcf47f3b 523 " timeout @ %d", offset);
789221ec
BZ		 524 goto done;
525 }
526
527 /* Check if there is more data ? */
528 if (offset >= firmwarelen)
529 break;
530
531 for (tries = 0; tries < MAX_POLL_TRIES; tries++) {
532 base0 = sdio_readb(card->func,
9f72c1d9 533 card->reg->sq_read_base_addr_a0, &ret);
789221ec
BZ		 534 if (ret) {
535 BT_ERR("BASE0 register read failed:"
536 " base0 = 0x%04X(%d)."
537 " Terminating download",
538 base0, base0);
539 ret = -EIO;
540 goto done;
541 }
542 base1 = sdio_readb(card->func,
9f72c1d9 543 card->reg->sq_read_base_addr_a1, &ret);
789221ec
BZ		 544 if (ret) {
545 BT_ERR("BASE1 register read failed:"
546 " base1 = 0x%04X(%d)."
547 " Terminating download",
548 base1, base1);
549 ret = -EIO;
550 goto done;
551 }
552
553 len = (((u16) base1) << 8) | base0;
554 if (len)
555 break;
556
557 udelay(10);
558 }
559
560 if (!len)
561 break;
562 else if (len > BTM_UPLD_SIZE) {
563 BT_ERR("FW download failure @%d, invalid length %d",
dcf47f3b 564 offset, len);
789221ec
BZ		 565 ret = -EINVAL;
566 goto done;
567 }
568
569 txlen = len;
570
571 if (len & BIT(0)) {
572 count++;
573 if (count > MAX_WRITE_IOMEM_RETRY) {
574 BT_ERR("FW download failure @%d, "
575 "over max retry count", offset);
576 ret = -EIO;
577 goto done;
578 }
579 BT_ERR("FW CRC error indicated by the helper: "
580 "len = 0x%04X, txlen = %d", len, txlen);
581 len &= ~BIT(0);
582 /* Set txlen to 0 so as to resend from same offset */
583 txlen = 0;
584 } else {
585 count = 0;
586
587 /* Last block ? */
588 if (firmwarelen - offset < txlen)
589 txlen = firmwarelen - offset;
590
ba34dd3d 591 tx_blocks = DIV_ROUND_UP(txlen, blksz_dl);
789221ec
BZ		 592
593 memcpy(fwbuf, &firmware[offset], txlen);
594 }
595
596 ret = sdio_writesb(card->func, card->ioport, fwbuf,
9f72c1d9 597 tx_blocks * blksz_dl);
789221ec
BZ		 598
599 if (ret < 0) {
600 BT_ERR("FW download, writesb(%d) failed @%d",
dcf47f3b 601 count, offset);
9f72c1d9
KG		 602 sdio_writeb(card->func, HOST_CMD53_FIN,
603 card->reg->cfg, &ret);
789221ec
BZ		 604 if (ret)
605 BT_ERR("writeb failed (CFG)");
606 }
607
608 offset += txlen;
609 } while (true);
610
1c6098eb 611 BT_INFO("FW download over, size %d bytes", offset);
789221ec
BZ		 612
613 ret = 0;
614
615done:
616 kfree(tmpfwbuf);
59f34fb3 617 release_firmware(fw_firmware);
789221ec
BZ		 618 return ret;
619}
620
621static int btmrvl_sdio_card_to_host(struct btmrvl_private *priv)
622{
623 u16 buf_len = 0;
42632805 624 int ret, num_blocks, blksz;
789221ec
BZ		 625 struct sk_buff *skb = NULL;
626 u32 type;
627 u8 *payload = NULL;
628 struct hci_dev *hdev = priv->btmrvl_dev.hcidev;
629 struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
630
789221ec
BZ		 631 if (!card || !card->func) {
632 BT_ERR("card or function is NULL!");
633 ret = -EINVAL;
634 goto exit;
635 }
636
637 /* Read the length of data to be transferred */
638 ret = btmrvl_sdio_read_rx_len(card, &buf_len);
639 if (ret < 0) {
640 BT_ERR("read rx_len failed");
641 ret = -EIO;
642 goto exit;
643 }
644
645 blksz = SDIO_BLOCK_SIZE;
e678bad5 646 num_blocks = DIV_ROUND_UP(buf_len, blksz);
789221ec
BZ		 647
648 if (buf_len <= SDIO_HEADER_LEN
42632805 649 || (num_blocks * blksz) > ALLOC_BUF_SIZE) {
789221ec
BZ		 650 BT_ERR("invalid packet length: %d", buf_len);
651 ret = -EINVAL;
652 goto exit;
653 }
654
655 /* Allocate buffer */
42632805 656 skb = bt_skb_alloc(num_blocks * blksz + BTSDIO_DMA_ALIGN, GFP_ATOMIC);
1f438c61 657 if (!skb) {
789221ec 658 BT_ERR("No free skb");
6ea81c41 659 ret = -ENOMEM;
789221ec
BZ		 660 goto exit;
661 }
662
3318b236
BZ		 663 if ((unsigned long) skb->data & (BTSDIO_DMA_ALIGN - 1)) {
664 skb_put(skb, (unsigned long) skb->data &
665 (BTSDIO_DMA_ALIGN - 1));
666 skb_pull(skb, (unsigned long) skb->data &
667 (BTSDIO_DMA_ALIGN - 1));
789221ec
BZ		 668 }
669
3318b236 670 payload = skb->data;
789221ec
BZ		 671
672 ret = sdio_readsb(card->func, payload, card->ioport,
42632805 673 num_blocks * blksz);
789221ec
BZ		 674 if (ret < 0) {
675 BT_ERR("readsb failed: %d", ret);
676 ret = -EIO;
677 goto exit;
678 }
679
680 /* This is SDIO specific header length: byte[2][1][0], type: byte[3]
681 * (HCI_COMMAND = 1, ACL_DATA = 2, SCO_DATA = 3, 0xFE = Vendor)
682 */
683
684 buf_len = payload[0];
9cb23dd4
AE		 685 buf_len |= payload[1] << 8;
686 buf_len |= payload[2] << 16;
687
688 if (buf_len > blksz * num_blocks) {
689 BT_ERR("Skip incorrect packet: hdrlen %d buffer %d",
690 buf_len, blksz * num_blocks);
691 ret = -EIO;
692 goto exit;
693 }
694
789221ec
BZ		 695 type = payload[3];
696
697 switch (type) {
698 case HCI_ACLDATA_PKT:
699 case HCI_SCODATA_PKT:
700 case HCI_EVENT_PKT:
618e8bc2 701 hci_skb_pkt_type(skb) = type;
789221ec
BZ		 702 skb_put(skb, buf_len);
703 skb_pull(skb, SDIO_HEADER_LEN);
704
ea1e76a3
AE		 705 if (type == HCI_EVENT_PKT) {
706 if (btmrvl_check_evtpkt(priv, skb))
e1a26170 707 hci_recv_frame(hdev, skb);
2c2453f3 708 } else {
e1a26170 709 hci_recv_frame(hdev, skb);
2c2453f3 710 }
789221ec 711
789221ec
BZ		 712 hdev->stat.byte_rx += buf_len;
713 break;
714
715 case MRVL_VENDOR_PKT:
618e8bc2 716 hci_skb_pkt_type(skb) = HCI_VENDOR_PKT;
789221ec
BZ		 717 skb_put(skb, buf_len);
718 skb_pull(skb, SDIO_HEADER_LEN);
719
720 if (btmrvl_process_event(priv, skb))
e1a26170 721 hci_recv_frame(hdev, skb);
789221ec
BZ		 722
723 hdev->stat.byte_rx += buf_len;
724 break;
725
726 default:
af901ca1 727 BT_ERR("Unknown packet type:%d", type);
78c1b8e8 728 BT_ERR("hex: %*ph", blksz * num_blocks, payload);
789221ec
BZ		 729
730 kfree_skb(skb);
731 skb = NULL;
732 break;
733 }
734
735exit:
736 if (ret) {
737 hdev->stat.err_rx++;
7923296f 738 kfree_skb(skb);
789221ec
BZ		 739 }
740
789221ec
BZ		 741 return ret;
742}
743
d1d10d78 744static int btmrvl_sdio_process_int_status(struct btmrvl_private *priv)
789221ec 745{
d1d10d78
AK		 746 ulong flags;
747 u8 ireg;
789221ec
BZ		 748 struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
749
d1d10d78
AK		 750 spin_lock_irqsave(&priv->driver_lock, flags);
751 ireg = sdio_ireg;
752 sdio_ireg = 0;
753 spin_unlock_irqrestore(&priv->driver_lock, flags);
789221ec 754
d1d10d78
AK		 755 sdio_claim_host(card->func);
756 if (ireg & DN_LD_HOST_INT_STATUS) {
789221ec
BZ		 757 if (priv->btmrvl_dev.tx_dnld_rdy)
758 BT_DBG("tx_done already received: "
d1d10d78 759 " int_status=0x%x", ireg);
789221ec
BZ		 760 else
761 priv->btmrvl_dev.tx_dnld_rdy = true;
762 }
763
d1d10d78 764 if (ireg & UP_LD_HOST_INT_STATUS)
789221ec
BZ		 765 btmrvl_sdio_card_to_host(priv);
766
d1d10d78 767 sdio_release_host(card->func);
789221ec 768
d1d10d78 769 return 0;
789221ec
BZ		 770}
771
0d367408
BZ		 772static int btmrvl_sdio_read_to_clear(struct btmrvl_sdio_card *card, u8 *ireg)
773{
774 struct btmrvl_adapter *adapter = card->priv->adapter;
775 int ret;
776
777 ret = sdio_readsb(card->func, adapter->hw_regs, 0, SDIO_BLOCK_SIZE);
778 if (ret) {
779 BT_ERR("sdio_readsb: read int hw_regs failed: %d", ret);
780 return ret;
781 }
782
783 *ireg = adapter->hw_regs[card->reg->host_intstatus];
784 BT_DBG("hw_regs[%#x]=%#x", card->reg->host_intstatus, *ireg);
785
786 return 0;
787}
788
8af4840a
BZ		 789static int btmrvl_sdio_write_to_clear(struct btmrvl_sdio_card *card, u8 *ireg)
790{
791 int ret;
792
793 *ireg = sdio_readb(card->func, card->reg->host_intstatus, &ret);
794 if (ret) {
795 BT_ERR("sdio_readb: read int status failed: %d", ret);
796 return ret;
797 }
798
799 if (*ireg) {
800 /*
801 * DN_LD_HOST_INT_STATUS and/or UP_LD_HOST_INT_STATUS
802 * Clear the interrupt status register and re-enable the
803 * interrupt.
804 */
805 BT_DBG("int_status = 0x%x", *ireg);
806
807 sdio_writeb(card->func, ~(*ireg) & (DN_LD_HOST_INT_STATUS |
808 UP_LD_HOST_INT_STATUS),
809 card->reg->host_intstatus, &ret);
810 if (ret) {
811 BT_ERR("sdio_writeb: clear int status failed: %d", ret);
812 return ret;
813 }
814 }
815
816 return 0;
817}
818
789221ec
BZ		 819static void btmrvl_sdio_interrupt(struct sdio_func *func)
820{
821 struct btmrvl_private *priv;
789221ec 822 struct btmrvl_sdio_card *card;
d1d10d78 823 ulong flags;
789221ec 824 u8 ireg = 0;
d1d10d78 825 int ret;
789221ec 826
789221ec 827 card = sdio_get_drvdata(func);
d1d10d78 828 if (!card || !card->priv) {
7365d475
AK		 829 BT_ERR("sbi_interrupt(%p) card or priv is NULL, card=%p",
830 func, card);
d1d10d78
AK		 831 return;
832 }
789221ec 833
d1d10d78 834 priv = card->priv;
789221ec 835
7b4b8740
AK		 836 if (priv->surprise_removed)
837 return;
838
0d367408
BZ		 839 if (card->reg->int_read_to_clear)
840 ret = btmrvl_sdio_read_to_clear(card, &ireg);
841 else
842 ret = btmrvl_sdio_write_to_clear(card, &ireg);
843
8af4840a 844 if (ret)
d1d10d78 845 return;
d1d10d78
AK		 846
847 spin_lock_irqsave(&priv->driver_lock, flags);
848 sdio_ireg |= ireg;
849 spin_unlock_irqrestore(&priv->driver_lock, flags);
850
851 btmrvl_interrupt(priv);
789221ec
BZ		 852}
853
854static int btmrvl_sdio_register_dev(struct btmrvl_sdio_card *card)
855{
789221ec 856 struct sdio_func *func;
dcf47f3b
MH		 857 u8 reg;
858 int ret = 0;
789221ec 859
789221ec
BZ		 860 if (!card || !card->func) {
861 BT_ERR("Error: card or function is NULL!");
862 ret = -EINVAL;
863 goto failed;
864 }
865
866 func = card->func;
867
789221ec
BZ		 868 sdio_claim_host(func);
869
870 ret = sdio_enable_func(func);
871 if (ret) {
872 BT_ERR("sdio_enable_func() failed: ret=%d", ret);
873 ret = -EIO;
874 goto release_host;
875 }
876
877 ret = sdio_claim_irq(func, btmrvl_sdio_interrupt);
878 if (ret) {
879 BT_ERR("sdio_claim_irq failed: ret=%d", ret);
880 ret = -EIO;
881 goto disable_func;
882 }
883
884 ret = sdio_set_block_size(card->func, SDIO_BLOCK_SIZE);
885 if (ret) {
886 BT_ERR("cannot set SDIO block size");
887 ret = -EIO;
888 goto release_irq;
889 }
890
9f72c1d9 891 reg = sdio_readb(func, card->reg->io_port_0, &ret);
789221ec
BZ		 892 if (ret < 0) {
893 ret = -EIO;
894 goto release_irq;
895 }
896
897 card->ioport = reg;
898
9f72c1d9 899 reg = sdio_readb(func, card->reg->io_port_1, &ret);
789221ec
BZ		 900 if (ret < 0) {
901 ret = -EIO;
902 goto release_irq;
903 }
904
905 card->ioport |= (reg << 8);
906
9f72c1d9 907 reg = sdio_readb(func, card->reg->io_port_2, &ret);
789221ec
BZ		 908 if (ret < 0) {
909 ret = -EIO;
910 goto release_irq;
911 }
912
913 card->ioport |= (reg << 16);
914
915 BT_DBG("SDIO FUNC%d IO port: 0x%x", func->num, card->ioport);
916
0d367408
BZ		 917 if (card->reg->int_read_to_clear) {
918 reg = sdio_readb(func, card->reg->host_int_rsr, &ret);
919 if (ret < 0) {
920 ret = -EIO;
921 goto release_irq;
922 }
923 sdio_writeb(func, reg | 0x3f, card->reg->host_int_rsr, &ret);
924 if (ret < 0) {
925 ret = -EIO;
926 goto release_irq;
927 }
928
929 reg = sdio_readb(func, card->reg->card_misc_cfg, &ret);
930 if (ret < 0) {
931 ret = -EIO;
932 goto release_irq;
933 }
934 sdio_writeb(func, reg | 0x10, card->reg->card_misc_cfg, &ret);
935 if (ret < 0) {
936 ret = -EIO;
937 goto release_irq;
938 }
939 }
940
789221ec
BZ		 941 sdio_set_drvdata(func, card);
942
943 sdio_release_host(func);
944
789221ec
BZ		 945 return 0;
946
947release_irq:
948 sdio_release_irq(func);
949
950disable_func:
951 sdio_disable_func(func);
952
953release_host:
954 sdio_release_host(func);
955
956failed:
789221ec
BZ		 957 return ret;
958}
959
960static int btmrvl_sdio_unregister_dev(struct btmrvl_sdio_card *card)
961{
789221ec
BZ		 962 if (card && card->func) {
963 sdio_claim_host(card->func);
964 sdio_release_irq(card->func);
965 sdio_disable_func(card->func);
966 sdio_release_host(card->func);
967 sdio_set_drvdata(card->func, NULL);
968 }
969
789221ec
BZ		 970 return 0;
971}
972
973static int btmrvl_sdio_enable_host_int(struct btmrvl_sdio_card *card)
974{
975 int ret;
976
9374253f 977 if (!card || !card->func)
789221ec 978 return -EINVAL;
789221ec
BZ		 979
980 sdio_claim_host(card->func);
981
982 ret = btmrvl_sdio_enable_host_int_mask(card, HIM_ENABLE);
983
984 btmrvl_sdio_get_rx_unit(card);
985
986 sdio_release_host(card->func);
987
789221ec
BZ		 988 return ret;
989}
990
991static int btmrvl_sdio_disable_host_int(struct btmrvl_sdio_card *card)
992{
993 int ret;
994
9374253f 995 if (!card || !card->func)
789221ec 996 return -EINVAL;
789221ec
BZ		 997
998 sdio_claim_host(card->func);
999
1000 ret = btmrvl_sdio_disable_host_int_mask(card, HIM_DISABLE);
1001
1002 sdio_release_host(card->func);
1003
789221ec
BZ		 1004 return ret;
1005}
1006
1007static int btmrvl_sdio_host_to_card(struct btmrvl_private *priv,
1008 u8 *payload, u16 nb)
1009{
1010 struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
1011 int ret = 0;
1012 int buf_block_len;
1013 int blksz;
1014 int i = 0;
1015 u8 *buf = NULL;
1016 void *tmpbuf = NULL;
1017 int tmpbufsz;
1018
789221ec
BZ		 1019 if (!card || !card->func) {
1020 BT_ERR("card or function is NULL!");
789221ec
BZ		 1021 return -EINVAL;
1022 }
1023
1024 buf = payload;
3318b236 1025 if ((unsigned long) payload & (BTSDIO_DMA_ALIGN - 1)) {
789221ec 1026 tmpbufsz = ALIGN_SZ(nb, BTSDIO_DMA_ALIGN);
5959809d
JL		 1027 tmpbuf = kzalloc(tmpbufsz, GFP_KERNEL);
1028 if (!tmpbuf)
1029 return -ENOMEM;
789221ec
BZ		 1030 buf = (u8 *) ALIGN_ADDR(tmpbuf, BTSDIO_DMA_ALIGN);
1031 memcpy(buf, payload, nb);
1032 }
1033
1034 blksz = SDIO_BLOCK_SIZE;
ba34dd3d 1035 buf_block_len = DIV_ROUND_UP(nb, blksz);
789221ec
BZ		 1036
1037 sdio_claim_host(card->func);
1038
1039 do {
1040 /* Transfer data to card */
1041 ret = sdio_writesb(card->func, card->ioport, buf,
1042 buf_block_len * blksz);
1043 if (ret < 0) {
1044 i++;
1045 BT_ERR("i=%d writesb failed: %d", i, ret);
78c1b8e8 1046 BT_ERR("hex: %*ph", nb, payload);
789221ec
BZ		 1047 ret = -EIO;
1048 if (i > MAX_WRITE_IOMEM_RETRY)
1049 goto exit;
1050 }
1051 } while (ret);
1052
1053 priv->btmrvl_dev.tx_dnld_rdy = false;
1054
1055exit:
1056 sdio_release_host(card->func);
88d1a0cf 1057 kfree(tmpbuf);
789221ec 1058
789221ec
BZ		 1059 return ret;
1060}
1061
1062static int btmrvl_sdio_download_fw(struct btmrvl_sdio_card *card)
1063{
faff7f74 1064 int ret;
9f72c1d9
KG		 1065 u8 fws0;
1066 int pollnum = MAX_POLL_TRIES;
789221ec 1067
789221ec
BZ		 1068 if (!card || !card->func) {
1069 BT_ERR("card or function is NULL!");
789221ec
BZ		 1070 return -EINVAL;
1071 }
789221ec
BZ		 1072
1073 if (!btmrvl_sdio_verify_fw_download(card, 1)) {
1074 BT_DBG("Firmware already downloaded!");
c1c999e2 1075 return 0;
789221ec
BZ		 1076 }
1077
c1c999e2
AF		 1078 sdio_claim_host(card->func);
1079
9f72c1d9
KG		 1080 /* Check if other function driver is downloading the firmware */
1081 fws0 = sdio_readb(card->func, card->reg->card_fw_status0, &ret);
789221ec 1082 if (ret) {
9f72c1d9 1083 BT_ERR("Failed to read FW downloading status!");
789221ec
BZ		 1084 ret = -EIO;
1085 goto done;
1086 }
9f72c1d9
KG		 1087 if (fws0) {
1088 BT_DBG("BT not the winner (%#x). Skip FW downloading", fws0);
1089
1090 /* Give other function more time to download the firmware */
1091 pollnum *= 10;
1092 } else {
1093 if (card->helper) {
1094 ret = btmrvl_sdio_download_helper(card);
1095 if (ret) {
1096 BT_ERR("Failed to download helper!");
1097 ret = -EIO;
1098 goto done;
1099 }
1100 }
789221ec 1101
9f72c1d9
KG		 1102 if (btmrvl_sdio_download_fw_w_helper(card)) {
1103 BT_ERR("Failed to download firmware!");
1104 ret = -EIO;
1105 goto done;
1106 }
789221ec
BZ		 1107 }
1108
69676b1c
AF		 1109 /*
1110 * winner or not, with this test the FW synchronizes when the
1111 * module can continue its initialization
1112 */
9f72c1d9 1113 if (btmrvl_sdio_verify_fw_download(card, pollnum)) {
789221ec 1114 BT_ERR("FW failed to be active in time!");
86f7ac77
CRL		 1115 ret = -ETIMEDOUT;
1116 goto done;
789221ec
BZ		 1117 }
1118
4863e4cc
AN		 1119 sdio_release_host(card->func);
1120
c1c999e2
AF		 1121 return 0;
1122
789221ec
BZ		 1123done:
1124 sdio_release_host(card->func);
789221ec
BZ		 1125 return ret;
1126}
1127
1128static int btmrvl_sdio_wakeup_fw(struct btmrvl_private *priv)
1129{
1130 struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
1131 int ret = 0;
1132
789221ec
BZ		 1133 if (!card || !card->func) {
1134 BT_ERR("card or function is NULL!");
789221ec
BZ		 1135 return -EINVAL;
1136 }
1137
1138 sdio_claim_host(card->func);
1139
9f72c1d9 1140 sdio_writeb(card->func, HOST_POWER_UP, card->reg->cfg, &ret);
789221ec
BZ		 1141
1142 sdio_release_host(card->func);
1143
1144 BT_DBG("wake up firmware");
1145
789221ec
BZ		 1146 return ret;
1147}
1148
dc759613
XH		 1149static void btmrvl_sdio_dump_regs(struct btmrvl_private *priv)
1150{
1151 struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
1152 int ret = 0;
1153 unsigned int reg, reg_start, reg_end;
1154 char buf[256], *ptr;
1155 u8 loop, func, data;
1156 int MAX_LOOP = 2;
1157
1158 btmrvl_sdio_wakeup_fw(priv);
1159 sdio_claim_host(card->func);
1160
1161 for (loop = 0; loop < MAX_LOOP; loop++) {
1162 memset(buf, 0, sizeof(buf));
1163 ptr = buf;
1164
1165 if (loop == 0) {
1166 /* Read the registers of SDIO function0 */
1167 func = loop;
1168 reg_start = 0;
1169 reg_end = 9;
1170 } else {
1171 func = 2;
1172 reg_start = 0;
1173 reg_end = 0x09;
1174 }
1175
1176 ptr += sprintf(ptr, "SDIO Func%d (%#x-%#x): ",
1177 func, reg_start, reg_end);
1178 for (reg = reg_start; reg <= reg_end; reg++) {
1179 if (func == 0)
1180 data = sdio_f0_readb(card->func, reg, &ret);
1181 else
1182 data = sdio_readb(card->func, reg, &ret);
1183
1184 if (!ret) {
1185 ptr += sprintf(ptr, "%02x ", data);
1186 } else {
1187 ptr += sprintf(ptr, "ERR");
1188 break;
1189 }
1190 }
1191
1192 BT_INFO("%s", buf);
1193 }
1194
1195 sdio_release_host(card->func);
1196}
1197
1198/* This function read/write firmware */
1199static enum
1200rdwr_status btmrvl_sdio_rdwr_firmware(struct btmrvl_private *priv,
1201 u8 doneflag)
1202{
1203 struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
1204 int ret, tries;
1205 u8 ctrl_data = 0;
1206
1207 sdio_writeb(card->func, FW_DUMP_HOST_READY, card->reg->fw_dump_ctrl,
1208 &ret);
1209
1210 if (ret) {
1211 BT_ERR("SDIO write err");
1212 return RDWR_STATUS_FAILURE;
1213 }
1214
1215 for (tries = 0; tries < MAX_POLL_TRIES; tries++) {
1216 ctrl_data = sdio_readb(card->func, card->reg->fw_dump_ctrl,
1217 &ret);
1218
1219 if (ret) {
1220 BT_ERR("SDIO read err");
1221 return RDWR_STATUS_FAILURE;
1222 }
1223
1224 if (ctrl_data == FW_DUMP_DONE)
1225 break;
1226 if (doneflag && ctrl_data == doneflag)
1227 return RDWR_STATUS_DONE;
1228 if (ctrl_data != FW_DUMP_HOST_READY) {
1229 BT_INFO("The ctrl reg was changed, re-try again!");
1230 sdio_writeb(card->func, FW_DUMP_HOST_READY,
1231 card->reg->fw_dump_ctrl, &ret);
1232 if (ret) {
1233 BT_ERR("SDIO write err");
1234 return RDWR_STATUS_FAILURE;
1235 }
1236 }
1237 usleep_range(100, 200);
1238 }
1239
1240 if (ctrl_data == FW_DUMP_HOST_READY) {
1241 BT_ERR("Fail to pull ctrl_data");
1242 return RDWR_STATUS_FAILURE;
1243 }
1244
1245 return RDWR_STATUS_SUCCESS;
1246}
1247
1248/* This function dump sdio register and memory data */
1249static void btmrvl_sdio_dump_firmware(struct btmrvl_private *priv)
1250{
1251 struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
1252 int ret = 0;
1253 unsigned int reg, reg_start, reg_end;
1254 enum rdwr_status stat;
1255 u8 *dbg_ptr, *end_ptr, *fw_dump_data, *fw_dump_ptr;
a1e85f04 1256 u8 dump_num = 0, idx, i, read_reg, doneflag = 0;
dc759613
XH		 1257 u32 memory_size, fw_dump_len = 0;
1258
1259 /* dump sdio register first */
1260 btmrvl_sdio_dump_regs(priv);
1261
1262 if (!card->supports_fw_dump) {
1263 BT_ERR("Firmware dump not supported for this card!");
1264 return;
1265 }
1266
1267 for (idx = 0; idx < ARRAY_SIZE(mem_type_mapping_tbl); idx++) {
1268 struct memory_type_mapping *entry = &mem_type_mapping_tbl[idx];
1269
1270 if (entry->mem_ptr) {
1271 vfree(entry->mem_ptr);
1272 entry->mem_ptr = NULL;
1273 }
1274 entry->mem_size = 0;
1275 }
1276
1277 btmrvl_sdio_wakeup_fw(priv);
1278 sdio_claim_host(card->func);
1279
1280 BT_INFO("== btmrvl firmware dump start ==");
1281
1282 stat = btmrvl_sdio_rdwr_firmware(priv, doneflag);
1283 if (stat == RDWR_STATUS_FAILURE)
1284 goto done;
1285
1286 reg = card->reg->fw_dump_start;
1287 /* Read the number of the memories which will dump */
1288 dump_num = sdio_readb(card->func, reg, &ret);
1289
1290 if (ret) {
1291 BT_ERR("SDIO read memory length err");
1292 goto done;
1293 }
1294
1295 /* Read the length of every memory which will dump */
1296 for (idx = 0; idx < dump_num; idx++) {
1297 struct memory_type_mapping *entry = &mem_type_mapping_tbl[idx];
1298
1299 stat = btmrvl_sdio_rdwr_firmware(priv, doneflag);
1300 if (stat == RDWR_STATUS_FAILURE)
1301 goto done;
1302
1303 memory_size = 0;
1304 reg = card->reg->fw_dump_start;
1305 for (i = 0; i < 4; i++) {
1306 read_reg = sdio_readb(card->func, reg, &ret);
1307 if (ret) {
1308 BT_ERR("SDIO read err");
1309 goto done;
1310 }
1311 memory_size |= (read_reg << i*8);
1312 reg++;
1313 }
1314
1315 if (memory_size == 0) {
1316 BT_INFO("Firmware dump finished!");
475b9eac
NK		 1317 sdio_writeb(card->func, FW_DUMP_READ_DONE,
1318 card->reg->fw_dump_ctrl, &ret);
1319 if (ret) {
1320 BT_ERR("SDIO Write MEMDUMP_FINISH ERR");
1321 goto done;
1322 }
dc759613
XH		 1323 break;
1324 }
1325
1326 BT_INFO("%s_SIZE=0x%x", entry->mem_name, memory_size);
1327 entry->mem_ptr = vzalloc(memory_size + 1);
1328 entry->mem_size = memory_size;
1329 if (!entry->mem_ptr) {
1330 BT_ERR("Vzalloc %s failed", entry->mem_name);
1331 goto done;
1332 }
1333
1334 fw_dump_len += (strlen("========Start dump ") +
1335 strlen(entry->mem_name) +
1336 strlen("========\n") +
1337 (memory_size + 1) +
1338 strlen("\n========End dump========\n"));
1339
1340 dbg_ptr = entry->mem_ptr;
1341 end_ptr = dbg_ptr + memory_size;
1342
1343 doneflag = entry->done_flag;
1344 BT_INFO("Start %s output, please wait...",
1345 entry->mem_name);
1346
1347 do {
1348 stat = btmrvl_sdio_rdwr_firmware(priv, doneflag);
1349 if (stat == RDWR_STATUS_FAILURE)
1350 goto done;
1351
1352 reg_start = card->reg->fw_dump_start;
1353 reg_end = card->reg->fw_dump_end;
1354 for (reg = reg_start; reg <= reg_end; reg++) {
1355 *dbg_ptr = sdio_readb(card->func, reg, &ret);
1356 if (ret) {
1357 BT_ERR("SDIO read err");
1358 goto done;
1359 }
1360 if (dbg_ptr < end_ptr)
1361 dbg_ptr++;
1362 else
1363 BT_ERR("Allocated buffer not enough");
1364 }
1365
1366 if (stat != RDWR_STATUS_DONE) {
1367 continue;
1368 } else {
1369 BT_INFO("%s done: size=0x%tx",
1370 entry->mem_name,
1371 dbg_ptr - entry->mem_ptr);
1372 break;
1373 }
1374 } while (1);
1375 }
1376
1377 BT_INFO("== btmrvl firmware dump end ==");
1378
1379done:
1380 sdio_release_host(card->func);
1381
1382 if (fw_dump_len == 0)
1383 return;
1384
1385 fw_dump_data = vzalloc(fw_dump_len+1);
1386 if (!fw_dump_data) {
1387 BT_ERR("Vzalloc fw_dump_data fail!");
1388 return;
1389 }
1390 fw_dump_ptr = fw_dump_data;
1391
1392 /* Dump all the memory data into single file, a userspace script will
1393 be used to split all the memory data to multiple files*/
1394 BT_INFO("== btmrvl firmware dump to /sys/class/devcoredump start");
1395 for (idx = 0; idx < dump_num; idx++) {
1396 struct memory_type_mapping *entry = &mem_type_mapping_tbl[idx];
1397
1398 if (entry->mem_ptr) {
1399 strcpy(fw_dump_ptr, "========Start dump ");
1400 fw_dump_ptr += strlen("========Start dump ");
1401
1402 strcpy(fw_dump_ptr, entry->mem_name);
1403 fw_dump_ptr += strlen(entry->mem_name);
1404
1405 strcpy(fw_dump_ptr, "========\n");
1406 fw_dump_ptr += strlen("========\n");
1407
1408 memcpy(fw_dump_ptr, entry->mem_ptr, entry->mem_size);
1409 fw_dump_ptr += entry->mem_size;
1410
1411 strcpy(fw_dump_ptr, "\n========End dump========\n");
1412 fw_dump_ptr += strlen("\n========End dump========\n");
1413
1414 vfree(mem_type_mapping_tbl[idx].mem_ptr);
1415 mem_type_mapping_tbl[idx].mem_ptr = NULL;
1416 }
1417 }
1418
1419 /* fw_dump_data will be free in device coredump release function
1420 after 5 min*/
d4902632 1421 dev_coredumpv(&card->func->dev, fw_dump_data, fw_dump_len, GFP_KERNEL);
dc759613
XH		 1422 BT_INFO("== btmrvl firmware dump to /sys/class/devcoredump end");
1423}
1424
789221ec 1425static int btmrvl_sdio_probe(struct sdio_func *func,
dcf47f3b 1426 const struct sdio_device_id *id)
789221ec
BZ		 1427{
1428 int ret = 0;
1429 struct btmrvl_private *priv = NULL;
1430 struct btmrvl_sdio_card *card = NULL;
1431
789221ec
BZ		 1432 BT_INFO("vendor=0x%x, device=0x%x, class=%d, fn=%d",
1433 id->vendor, id->device, id->class, func->num);
1434
eb17ea3b
SK		 1435 card = devm_kzalloc(&func->dev, sizeof(*card), GFP_KERNEL);
1436 if (!card)
1437 return -ENOMEM;
789221ec
BZ		 1438
1439 card->func = func;
1440
dcf47f3b
MH		 1441 if (id->driver_data) {
1442 struct btmrvl_sdio_device *data = (void *) id->driver_data;
9f72c1d9 1443 card->helper = data->helper;
dcf47f3b 1444 card->firmware = data->firmware;
9f72c1d9
KG		 1445 card->reg = data->reg;
1446 card->sd_blksz_fw_dl = data->sd_blksz_fw_dl;
4df82b59 1447 card->support_pscan_win_report = data->support_pscan_win_report;
dc759613 1448 card->supports_fw_dump = data->supports_fw_dump;
dcf47f3b
MH		 1449 }
1450
789221ec
BZ		 1451 if (btmrvl_sdio_register_dev(card) < 0) {
1452 BT_ERR("Failed to register BT device!");
eb17ea3b 1453 return -ENODEV;
789221ec
BZ		 1454 }
1455
1456 /* Disable the interrupts on the card */
1457 btmrvl_sdio_disable_host_int(card);
1458
1459 if (btmrvl_sdio_download_fw(card)) {
1460 BT_ERR("Downloading firmware failed!");
1461 ret = -ENODEV;
1462 goto unreg_dev;
1463 }
1464
789221ec
BZ		 1465 btmrvl_sdio_enable_host_int(card);
1466
1467 priv = btmrvl_add_card(card);
1468 if (!priv) {
1469 BT_ERR("Initializing card failed!");
1470 ret = -ENODEV;
1471 goto disable_host_int;
1472 }
1473
1474 card->priv = priv;
1475
1476 /* Initialize the interface specific function pointers */
1477 priv->hw_host_to_card = btmrvl_sdio_host_to_card;
1478 priv->hw_wakeup_firmware = btmrvl_sdio_wakeup_fw;
d1d10d78 1479 priv->hw_process_int_status = btmrvl_sdio_process_int_status;
dc759613 1480 priv->firmware_dump = btmrvl_sdio_dump_firmware;
789221ec 1481
64061607
BZ		 1482 if (btmrvl_register_hdev(priv)) {
1483 BT_ERR("Register hdev failed!");
1484 ret = -ENODEV;
1485 goto disable_host_int;
1486 }
1487
789221ec
BZ		 1488 return 0;
1489
1490disable_host_int:
1491 btmrvl_sdio_disable_host_int(card);
1492unreg_dev:
1493 btmrvl_sdio_unregister_dev(card);
789221ec
BZ		 1494 return ret;
1495}
1496
1497static void btmrvl_sdio_remove(struct sdio_func *func)
1498{
1499 struct btmrvl_sdio_card *card;
1500
789221ec
BZ		 1501 if (func) {
1502 card = sdio_get_drvdata(func);
1503 if (card) {
1504 /* Send SHUTDOWN command & disable interrupt
1505 * if user removes the module.
1506 */
1507 if (user_rmmod) {
1508 btmrvl_send_module_cfg_cmd(card->priv,
1509 MODULE_SHUTDOWN_REQ);
1510 btmrvl_sdio_disable_host_int(card);
1511 }
1512 BT_DBG("unregester dev");
7b4b8740 1513 card->priv->surprise_removed = true;
789221ec
BZ		 1514 btmrvl_sdio_unregister_dev(card);
1515 btmrvl_remove_card(card->priv);
789221ec
BZ		 1516 }
1517 }
789221ec
BZ		 1518}
1519
ba54a16f
AK		 1520static int btmrvl_sdio_suspend(struct device *dev)
1521{
1522 struct sdio_func *func = dev_to_sdio_func(dev);
1523 struct btmrvl_sdio_card *card;
1524 struct btmrvl_private *priv;
1525 mmc_pm_flag_t pm_flags;
1526 struct hci_dev *hcidev;
1527
1528 if (func) {
1529 pm_flags = sdio_get_host_pm_caps(func);
1530 BT_DBG("%s: suspend: PM flags = 0x%x", sdio_func_id(func),
1531 pm_flags);
1532 if (!(pm_flags & MMC_PM_KEEP_POWER)) {
1533 BT_ERR("%s: cannot remain alive while suspended",
1534 sdio_func_id(func));
1535 return -ENOSYS;
1536 }
1537 card = sdio_get_drvdata(func);
1538 if (!card || !card->priv) {
1539 BT_ERR("card or priv structure is not valid");
1540 return 0;
1541 }
1542 } else {
1543 BT_ERR("sdio_func is not specified");
1544 return 0;
1545 }
1546
1547 priv = card->priv;
8cf60cf2 1548 priv->adapter->is_suspending = true;
5bf8a748
CRL		 1549 hcidev = priv->btmrvl_dev.hcidev;
1550 BT_DBG("%s: SDIO suspend", hcidev->name);
1551 hci_suspend_dev(hcidev);
ba54a16f
AK		 1552
1553 if (priv->adapter->hs_state != HS_ACTIVATED) {
1554 if (btmrvl_enable_hs(priv)) {
1555 BT_ERR("HS not actived, suspend failed!");
1556 return -EBUSY;
1557 }
1558 }
ba54a16f 1559
8cf60cf2 1560 priv->adapter->is_suspending = false;
ba54a16f
AK		 1561 priv->adapter->is_suspended = true;
1562
1563 /* We will keep the power when hs enabled successfully */
1564 if (priv->adapter->hs_state == HS_ACTIVATED) {
1565 BT_DBG("suspend with MMC_PM_KEEP_POWER");
1566 return sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER);
1567 } else {
1568 BT_DBG("suspend without MMC_PM_KEEP_POWER");
1569 return 0;
1570 }
1571}
1572
1573static int btmrvl_sdio_resume(struct device *dev)
1574{
1575 struct sdio_func *func = dev_to_sdio_func(dev);
1576 struct btmrvl_sdio_card *card;
1577 struct btmrvl_private *priv;
1578 mmc_pm_flag_t pm_flags;
1579 struct hci_dev *hcidev;
1580
1581 if (func) {
1582 pm_flags = sdio_get_host_pm_caps(func);
1583 BT_DBG("%s: resume: PM flags = 0x%x", sdio_func_id(func),
1584 pm_flags);
1585 card = sdio_get_drvdata(func);
1586 if (!card || !card->priv) {
1587 BT_ERR("card or priv structure is not valid");
1588 return 0;
1589 }
1590 } else {
1591 BT_ERR("sdio_func is not specified");
1592 return 0;
1593 }
1594 priv = card->priv;
1595
1596 if (!priv->adapter->is_suspended) {
1597 BT_DBG("device already resumed");
1598 return 0;
1599 }
1600
ba54a16f
AK		 1601 priv->hw_wakeup_firmware(priv);
1602 priv->adapter->hs_state = HS_DEACTIVATED;
5bf8a748 1603 hcidev = priv->btmrvl_dev.hcidev;
ba54a16f 1604 BT_DBG("%s: HS DEACTIVATED in resume!", hcidev->name);
5bf8a748
CRL		 1605 priv->adapter->is_suspended = false;
1606 BT_DBG("%s: SDIO resume", hcidev->name);
1607 hci_resume_dev(hcidev);
ba54a16f
AK		 1608
1609 return 0;
1610}
1611
1612static const struct dev_pm_ops btmrvl_sdio_pm_ops = {
1613 .suspend = btmrvl_sdio_suspend,
1614 .resume = btmrvl_sdio_resume,
1615};
1616
789221ec
BZ		 1617static struct sdio_driver bt_mrvl_sdio = {
1618 .name = "btmrvl_sdio",
1619 .id_table = btmrvl_sdio_ids,
1620 .probe = btmrvl_sdio_probe,
1621 .remove = btmrvl_sdio_remove,
ba54a16f
AK		 1622 .drv = {
1623 .owner = THIS_MODULE,
1624 .pm = &btmrvl_sdio_pm_ops,
1625 }
789221ec
BZ		 1626};
1627
8e5b2308 1628static int __init btmrvl_sdio_init_module(void)
789221ec 1629{
789221ec
BZ		 1630 if (sdio_register_driver(&bt_mrvl_sdio) != 0) {
1631 BT_ERR("SDIO Driver Registration Failed");
789221ec
BZ		 1632 return -ENODEV;
1633 }
1634
1635 /* Clear the flag in case user removes the card. */
1636 user_rmmod = 0;
1637
789221ec
BZ		 1638 return 0;
1639}
1640
8e5b2308 1641static void __exit btmrvl_sdio_exit_module(void)
789221ec 1642{
789221ec
BZ		 1643 /* Set the flag as user is removing this module. */
1644 user_rmmod = 1;
1645
1646 sdio_unregister_driver(&bt_mrvl_sdio);
789221ec
BZ		 1647}
1648
1649module_init(btmrvl_sdio_init_module);
1650module_exit(btmrvl_sdio_exit_module);
1651
1652MODULE_AUTHOR("Marvell International Ltd.");
9666fb35 1653MODULE_DESCRIPTION("Marvell BT-over-SDIO driver ver " VERSION);
789221ec
BZ		 1654MODULE_VERSION(VERSION);
1655MODULE_LICENSE("GPL v2");
77189df4
LR		 1656MODULE_FIRMWARE("mrvl/sd8688_helper.bin");
1657MODULE_FIRMWARE("mrvl/sd8688.bin");
9f72c1d9 1658MODULE_FIRMWARE("mrvl/sd8787_uapsta.bin");
2ac654f7 1659MODULE_FIRMWARE("mrvl/sd8797_uapsta.bin");
3907d558 1660MODULE_FIRMWARE("mrvl/sd8887_uapsta.bin");
22f2efed 1661MODULE_FIRMWARE("mrvl/sd8897_uapsta.bin");
f0ef6748 1662MODULE_FIRMWARE("mrvl/sd8997_uapsta.bin");
Linux 6.x block layer and io_uring tree(s)