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[mirror_ubuntu-artful-kernel.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>
17e41ea6 23#include <linux/suspend.h>
789221ec
BZ		 24
25#include <linux/mmc/sdio_ids.h>
26#include <linux/mmc/sdio_func.h>
a59b968e 27#include <linux/module.h>
dc759613 28#include <linux/devcoredump.h>
789221ec
BZ		 29
30#include <net/bluetooth/bluetooth.h>
31#include <net/bluetooth/hci_core.h>
32
33#include "btmrvl_drv.h"
34#include "btmrvl_sdio.h"
35
36#define VERSION "1.0"
37
dc759613
XH		 38static struct memory_type_mapping mem_type_mapping_tbl[] = {
39 {"ITCM", NULL, 0, 0xF0},
40 {"DTCM", NULL, 0, 0xF1},
41 {"SQRAM", NULL, 0, 0xF2},
42 {"APU", NULL, 0, 0xF3},
43 {"CIU", NULL, 0, 0xF4},
44 {"ICU", NULL, 0, 0xF5},
45 {"MAC", NULL, 0, 0xF6},
46 {"EXT7", NULL, 0, 0xF7},
47 {"EXT8", NULL, 0, 0xF8},
48 {"EXT9", NULL, 0, 0xF9},
49 {"EXT10", NULL, 0, 0xFA},
50 {"EXT11", NULL, 0, 0xFB},
51 {"EXT12", NULL, 0, 0xFC},
52 {"EXT13", NULL, 0, 0xFD},
53 {"EXTLAST", NULL, 0, 0xFE},
54};
55
bb7f4f0b
XH		 56static const struct of_device_id btmrvl_sdio_of_match_table[] = {
57 { .compatible = "marvell,sd8897-bt" },
58 { .compatible = "marvell,sd8997-bt" },
59 { }
60};
61
62static irqreturn_t btmrvl_wake_irq_bt(int irq, void *priv)
63{
17e41ea6
JC		 64 struct btmrvl_sdio_card *card = priv;
65 struct btmrvl_plt_wake_cfg *cfg = card->plt_wake_cfg;
bb7f4f0b 66
c8ba8044
XH		 67 pr_info("%s: wake by bt", __func__);
68 cfg->wake_by_bt = true;
69 disable_irq_nosync(irq);
bb7f4f0b 70
17e41ea6
JC		 71 pm_wakeup_event(&card->func->dev, 0);
72 pm_system_wakeup();
73
bb7f4f0b
XH		 74 return IRQ_HANDLED;
75}
76
77/* This function parses device tree node using mmc subnode devicetree API.
78 * The device node is saved in card->plt_of_node.
79 * If the device tree node exists and includes interrupts attributes, this
80 * function will request platform specific wakeup interrupt.
81 */
82static int btmrvl_sdio_probe_of(struct device *dev,
83 struct btmrvl_sdio_card *card)
84{
85 struct btmrvl_plt_wake_cfg *cfg;
86 int ret;
87
88 if (!dev->of_node ||
89 !of_match_node(btmrvl_sdio_of_match_table, dev->of_node)) {
90 pr_err("sdio platform data not available");
91 return -1;
92 }
93
94 card->plt_of_node = dev->of_node;
95
96 card->plt_wake_cfg = devm_kzalloc(dev, sizeof(*card->plt_wake_cfg),
97 GFP_KERNEL);
98 cfg = card->plt_wake_cfg;
99 if (cfg && card->plt_of_node) {
100 cfg->irq_bt = irq_of_parse_and_map(card->plt_of_node, 0);
101 if (!cfg->irq_bt) {
102 dev_err(dev, "fail to parse irq_bt from device tree");
fd1a88da 103 cfg->irq_bt = -1;
bb7f4f0b
XH		 104 } else {
105 ret = devm_request_irq(dev, cfg->irq_bt,
106 btmrvl_wake_irq_bt,
17e41ea6 107 0, "bt_wake", card);
bb7f4f0b
XH		 108 if (ret) {
109 dev_err(dev,
110 "Failed to request irq_bt %d (%d)\n",
111 cfg->irq_bt, ret);
112 }
113 disable_irq(cfg->irq_bt);
114 }
115 }
116
117 return 0;
118}
119
789221ec
BZ		 120/* The btmrvl_sdio_remove() callback function is called
121 * when user removes this module from kernel space or ejects
122 * the card from the slot. The driver handles these 2 cases
123 * differently.
124 * If the user is removing the module, a MODULE_SHUTDOWN_REQ
125 * command is sent to firmware and interrupt will be disabled.
126 * If the card is removed, there is no need to send command
127 * or disable interrupt.
128 *
129 * The variable 'user_rmmod' is used to distinguish these two
130 * scenarios. This flag is initialized as FALSE in case the card
131 * is removed, and will be set to TRUE for module removal when
132 * module_exit function is called.
133 */
134static u8 user_rmmod;
d1d10d78 135static u8 sdio_ireg;
789221ec 136
9f72c1d9
KG		 137static const struct btmrvl_sdio_card_reg btmrvl_reg_8688 = {
138 .cfg = 0x03,
139 .host_int_mask = 0x04,
140 .host_intstatus = 0x05,
141 .card_status = 0x20,
142 .sq_read_base_addr_a0 = 0x10,
143 .sq_read_base_addr_a1 = 0x11,
144 .card_fw_status0 = 0x40,
145 .card_fw_status1 = 0x41,
146 .card_rx_len = 0x42,
147 .card_rx_unit = 0x43,
148 .io_port_0 = 0x00,
149 .io_port_1 = 0x01,
150 .io_port_2 = 0x02,
0d367408 151 .int_read_to_clear = false,
9f72c1d9 152};
2ac654f7 153static const struct btmrvl_sdio_card_reg btmrvl_reg_87xx = {
9f72c1d9
KG		 154 .cfg = 0x00,
155 .host_int_mask = 0x02,
156 .host_intstatus = 0x03,
157 .card_status = 0x30,
158 .sq_read_base_addr_a0 = 0x40,
159 .sq_read_base_addr_a1 = 0x41,
160 .card_revision = 0x5c,
161 .card_fw_status0 = 0x60,
162 .card_fw_status1 = 0x61,
163 .card_rx_len = 0x62,
164 .card_rx_unit = 0x63,
165 .io_port_0 = 0x78,
166 .io_port_1 = 0x79,
167 .io_port_2 = 0x7a,
0d367408 168 .int_read_to_clear = false,
9f72c1d9
KG		 169};
170
3907d558
XH		 171static const struct btmrvl_sdio_card_reg btmrvl_reg_8887 = {
172 .cfg = 0x00,
173 .host_int_mask = 0x08,
174 .host_intstatus = 0x0C,
175 .card_status = 0x5C,
176 .sq_read_base_addr_a0 = 0x6C,
177 .sq_read_base_addr_a1 = 0x6D,
178 .card_revision = 0xC8,
179 .card_fw_status0 = 0x88,
180 .card_fw_status1 = 0x89,
181 .card_rx_len = 0x8A,
182 .card_rx_unit = 0x8B,
183 .io_port_0 = 0xE4,
184 .io_port_1 = 0xE5,
185 .io_port_2 = 0xE6,
186 .int_read_to_clear = true,
187 .host_int_rsr = 0x04,
188 .card_misc_cfg = 0xD8,
189};
190
1e3e492c 191static const struct btmrvl_sdio_card_reg btmrvl_reg_8897 = {
22f2efed
BZ		 192 .cfg = 0x00,
193 .host_int_mask = 0x02,
194 .host_intstatus = 0x03,
195 .card_status = 0x50,
196 .sq_read_base_addr_a0 = 0x60,
197 .sq_read_base_addr_a1 = 0x61,
198 .card_revision = 0xbc,
199 .card_fw_status0 = 0xc0,
200 .card_fw_status1 = 0xc1,
201 .card_rx_len = 0xc2,
202 .card_rx_unit = 0xc3,
203 .io_port_0 = 0xd8,
204 .io_port_1 = 0xd9,
205 .io_port_2 = 0xda,
0d367408
BZ		 206 .int_read_to_clear = true,
207 .host_int_rsr = 0x01,
208 .card_misc_cfg = 0xcc,
dc759613
XH		 209 .fw_dump_ctrl = 0xe2,
210 .fw_dump_start = 0xe3,
211 .fw_dump_end = 0xea,
22f2efed
BZ		 212};
213
f0ef6748
AK		 214static const struct btmrvl_sdio_card_reg btmrvl_reg_8997 = {
215 .cfg = 0x00,
216 .host_int_mask = 0x08,
217 .host_intstatus = 0x0c,
218 .card_status = 0x5c,
219 .sq_read_base_addr_a0 = 0xf8,
220 .sq_read_base_addr_a1 = 0xf9,
221 .card_revision = 0xc8,
222 .card_fw_status0 = 0xe8,
223 .card_fw_status1 = 0xe9,
224 .card_rx_len = 0xea,
225 .card_rx_unit = 0xeb,
226 .io_port_0 = 0xe4,
227 .io_port_1 = 0xe5,
228 .io_port_2 = 0xe6,
229 .int_read_to_clear = true,
230 .host_int_rsr = 0x04,
231 .card_misc_cfg = 0xD8,
232 .fw_dump_ctrl = 0xf0,
233 .fw_dump_start = 0xf1,
234 .fw_dump_end = 0xf8,
235};
236
c675786a 237static const struct btmrvl_sdio_device btmrvl_sdio_sd8688 = {
77189df4
LR		 238 .helper = "mrvl/sd8688_helper.bin",
239 .firmware = "mrvl/sd8688.bin",
9f72c1d9 240 .reg = &btmrvl_reg_8688,
4df82b59 241 .support_pscan_win_report = false,
9f72c1d9 242 .sd_blksz_fw_dl = 64,
dc759613 243 .supports_fw_dump = false,
9f72c1d9
KG		 244};
245
246static const struct btmrvl_sdio_device btmrvl_sdio_sd8787 = {
247 .helper = NULL,
248 .firmware = "mrvl/sd8787_uapsta.bin",
2ac654f7 249 .reg = &btmrvl_reg_87xx,
4df82b59 250 .support_pscan_win_report = false,
2ac654f7 251 .sd_blksz_fw_dl = 256,
dc759613 252 .supports_fw_dump = false,
2ac654f7
BZ		 253};
254
255static const struct btmrvl_sdio_device btmrvl_sdio_sd8797 = {
256 .helper = NULL,
257 .firmware = "mrvl/sd8797_uapsta.bin",
258 .reg = &btmrvl_reg_87xx,
4df82b59 259 .support_pscan_win_report = false,
9f72c1d9 260 .sd_blksz_fw_dl = 256,
dc759613 261 .supports_fw_dump = false,
789221ec
BZ		 262};
263
3907d558
XH		 264static const struct btmrvl_sdio_device btmrvl_sdio_sd8887 = {
265 .helper = NULL,
266 .firmware = "mrvl/sd8887_uapsta.bin",
267 .reg = &btmrvl_reg_8887,
268 .support_pscan_win_report = true,
269 .sd_blksz_fw_dl = 256,
dc759613 270 .supports_fw_dump = false,
3907d558
XH		 271};
272
22f2efed
BZ		 273static const struct btmrvl_sdio_device btmrvl_sdio_sd8897 = {
274 .helper = NULL,
275 .firmware = "mrvl/sd8897_uapsta.bin",
1e3e492c 276 .reg = &btmrvl_reg_8897,
4df82b59 277 .support_pscan_win_report = true,
22f2efed 278 .sd_blksz_fw_dl = 256,
dc759613 279 .supports_fw_dump = true,
22f2efed
BZ		 280};
281
f0ef6748
AK		 282static const struct btmrvl_sdio_device btmrvl_sdio_sd8997 = {
283 .helper = NULL,
284 .firmware = "mrvl/sd8997_uapsta.bin",
285 .reg = &btmrvl_reg_8997,
286 .support_pscan_win_report = true,
287 .sd_blksz_fw_dl = 256,
288 .supports_fw_dump = true,
289};
290
dcf47f3b
MH		 291static const struct sdio_device_id btmrvl_sdio_ids[] = {
292 /* Marvell SD8688 Bluetooth device */
293 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x9105),
53d6cfa5 294 .driver_data = (unsigned long)&btmrvl_sdio_sd8688 },
9f72c1d9
KG		 295 /* Marvell SD8787 Bluetooth device */
296 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x911A),
53d6cfa5 297 .driver_data = (unsigned long)&btmrvl_sdio_sd8787 },
37ed561e
BZ		 298 /* Marvell SD8787 Bluetooth AMP device */
299 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x911B),
53d6cfa5 300 .driver_data = (unsigned long)&btmrvl_sdio_sd8787 },
2ac654f7
BZ		 301 /* Marvell SD8797 Bluetooth device */
302 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x912A),
53d6cfa5 303 .driver_data = (unsigned long)&btmrvl_sdio_sd8797 },
3907d558
XH		 304 /* Marvell SD8887 Bluetooth device */
305 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x9136),
306 .driver_data = (unsigned long)&btmrvl_sdio_sd8887 },
22f2efed
BZ		 307 /* Marvell SD8897 Bluetooth device */
308 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x912E),
53d6cfa5 309 .driver_data = (unsigned long)&btmrvl_sdio_sd8897 },
f0ef6748
AK		 310 /* Marvell SD8997 Bluetooth device */
311 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x9142),
312 .driver_data = (unsigned long)&btmrvl_sdio_sd8997 },
789221ec 313
dcf47f3b 314 { } /* Terminating entry */
789221ec
BZ		 315};
316
dcf47f3b
MH		 317MODULE_DEVICE_TABLE(sdio, btmrvl_sdio_ids);
318
789221ec
BZ		 319static int btmrvl_sdio_get_rx_unit(struct btmrvl_sdio_card *card)
320{
321 u8 reg;
322 int ret;
323
9f72c1d9 324 reg = sdio_readb(card->func, card->reg->card_rx_unit, &ret);
789221ec
BZ		 325 if (!ret)
326 card->rx_unit = reg;
327
789221ec
BZ		 328 return ret;
329}
330
331static int btmrvl_sdio_read_fw_status(struct btmrvl_sdio_card *card, u16 *dat)
332{
789221ec 333 u8 fws0, fws1;
9374253f 334 int ret;
789221ec
BZ		 335
336 *dat = 0;
337
9f72c1d9 338 fws0 = sdio_readb(card->func, card->reg->card_fw_status0, &ret);
278be27f
KV		 339 if (ret)
340 return -EIO;
789221ec 341
9f72c1d9 342 fws1 = sdio_readb(card->func, card->reg->card_fw_status1, &ret);
9374253f 343 if (ret)
789221ec 344 return -EIO;
789221ec
BZ		 345
346 *dat = (((u16) fws1) << 8) | fws0;
347
789221ec
BZ		 348 return 0;
349}
350
351static int btmrvl_sdio_read_rx_len(struct btmrvl_sdio_card *card, u16 *dat)
352{
789221ec 353 u8 reg;
9374253f 354 int ret;
789221ec 355
9f72c1d9 356 reg = sdio_readb(card->func, card->reg->card_rx_len, &ret);
789221ec
BZ		 357 if (!ret)
358 *dat = (u16) reg << card->rx_unit;
359
789221ec
BZ		 360 return ret;
361}
362
363static int btmrvl_sdio_enable_host_int_mask(struct btmrvl_sdio_card *card,
dcf47f3b 364 u8 mask)
789221ec
BZ		 365{
366 int ret;
367
9f72c1d9 368 sdio_writeb(card->func, mask, card->reg->host_int_mask, &ret);
789221ec
BZ		 369 if (ret) {
370 BT_ERR("Unable to enable the host interrupt!");
371 ret = -EIO;
372 }
373
789221ec
BZ		 374 return ret;
375}
376
377static int btmrvl_sdio_disable_host_int_mask(struct btmrvl_sdio_card *card,
dcf47f3b 378 u8 mask)
789221ec 379{
789221ec 380 u8 host_int_mask;
9374253f 381 int ret;
789221ec 382
9f72c1d9 383 host_int_mask = sdio_readb(card->func, card->reg->host_int_mask, &ret);
9374253f
MH		 384 if (ret)
385 return -EIO;
789221ec
BZ		 386
387 host_int_mask &= ~mask;
388
9f72c1d9 389 sdio_writeb(card->func, host_int_mask, card->reg->host_int_mask, &ret);
789221ec
BZ		 390 if (ret < 0) {
391 BT_ERR("Unable to disable the host interrupt!");
9374253f 392 return -EIO;
789221ec
BZ		 393 }
394
9374253f 395 return 0;
789221ec
BZ		 396}
397
398static int btmrvl_sdio_poll_card_status(struct btmrvl_sdio_card *card, u8 bits)
399{
400 unsigned int tries;
789221ec 401 u8 status;
9374253f 402 int ret;
789221ec
BZ		 403
404 for (tries = 0; tries < MAX_POLL_TRIES * 1000; tries++) {
9f72c1d9 405 status = sdio_readb(card->func, card->reg->card_status, &ret);
789221ec
BZ		 406 if (ret)
407 goto failed;
408 if ((status & bits) == bits)
9374253f 409 return ret;
789221ec
BZ		 410
411 udelay(1);
412 }
413
414 ret = -ETIMEDOUT;
415
416failed:
417 BT_ERR("FAILED! ret=%d", ret);
418
789221ec
BZ		 419 return ret;
420}
421
422static int btmrvl_sdio_verify_fw_download(struct btmrvl_sdio_card *card,
dcf47f3b 423 int pollnum)
789221ec 424{
789221ec 425 u16 firmwarestat;
69676b1c 426 int tries, ret;
789221ec 427
789221ec
BZ		 428 /* Wait for firmware to become ready */
429 for (tries = 0; tries < pollnum; tries++) {
c1c999e2
AF		 430 sdio_claim_host(card->func);
431 ret = btmrvl_sdio_read_fw_status(card, &firmwarestat);
432 sdio_release_host(card->func);
433 if (ret < 0)
789221ec
BZ		 434 continue;
435
69676b1c
AF		 436 if (firmwarestat == FIRMWARE_READY)
437 return 0;
438
9a01242d 439 msleep(100);
789221ec
BZ		 440 }
441
69676b1c 442 return -ETIMEDOUT;
789221ec
BZ		 443}
444
445static int btmrvl_sdio_download_helper(struct btmrvl_sdio_card *card)
446{
447 const struct firmware *fw_helper = NULL;
448 const u8 *helper = NULL;
449 int ret;
450 void *tmphlprbuf = NULL;
451 int tmphlprbufsz, hlprblknow, helperlen;
452 u8 *helperbuf;
453 u32 tx_len;
454
789221ec 455 ret = request_firmware(&fw_helper, card->helper,
dcf47f3b 456 &card->func->dev);
789221ec
BZ		 457 if ((ret < 0) || !fw_helper) {
458 BT_ERR("request_firmware(helper) failed, error code = %d",
dcf47f3b 459 ret);
789221ec
BZ		 460 ret = -ENOENT;
461 goto done;
462 }
463
464 helper = fw_helper->data;
465 helperlen = fw_helper->size;
466
467 BT_DBG("Downloading helper image (%d bytes), block size %d bytes",
dcf47f3b 468 helperlen, SDIO_BLOCK_SIZE);
789221ec
BZ		 469
470 tmphlprbufsz = ALIGN_SZ(BTM_UPLD_SIZE, BTSDIO_DMA_ALIGN);
471
f8df39f1 472 tmphlprbuf = kzalloc(tmphlprbufsz, GFP_KERNEL);
789221ec
BZ		 473 if (!tmphlprbuf) {
474 BT_ERR("Unable to allocate buffer for helper."
475 " Terminating download");
476 ret = -ENOMEM;
477 goto done;
478 }
479
789221ec
BZ		 480 helperbuf = (u8 *) ALIGN_ADDR(tmphlprbuf, BTSDIO_DMA_ALIGN);
481
482 /* Perform helper data transfer */
483 tx_len = (FIRMWARE_TRANSFER_NBLOCK * SDIO_BLOCK_SIZE)
484 - SDIO_HEADER_LEN;
485 hlprblknow = 0;
486
487 do {
488 ret = btmrvl_sdio_poll_card_status(card,
489 CARD_IO_READY | DN_LD_CARD_RDY);
490 if (ret < 0) {
491 BT_ERR("Helper download poll status timeout @ %d",
492 hlprblknow);
493 goto done;
494 }
495
496 /* Check if there is more data? */
497 if (hlprblknow >= helperlen)
498 break;
499
500 if (helperlen - hlprblknow < tx_len)
501 tx_len = helperlen - hlprblknow;
502
503 /* Little-endian */
504 helperbuf[0] = ((tx_len & 0x000000ff) >> 0);
505 helperbuf[1] = ((tx_len & 0x0000ff00) >> 8);
506 helperbuf[2] = ((tx_len & 0x00ff0000) >> 16);
507 helperbuf[3] = ((tx_len & 0xff000000) >> 24);
508
509 memcpy(&helperbuf[SDIO_HEADER_LEN], &helper[hlprblknow],
510 tx_len);
511
512 /* Now send the data */
dcf47f3b
MH		 513 ret = sdio_writesb(card->func, card->ioport, helperbuf,
514 FIRMWARE_TRANSFER_NBLOCK * SDIO_BLOCK_SIZE);
789221ec
BZ		 515 if (ret < 0) {
516 BT_ERR("IO error during helper download @ %d",
517 hlprblknow);
518 goto done;
519 }
520
521 hlprblknow += tx_len;
522 } while (true);
523
524 BT_DBG("Transferring helper image EOF block");
525
526 memset(helperbuf, 0x0, SDIO_BLOCK_SIZE);
527
528 ret = sdio_writesb(card->func, card->ioport, helperbuf,
dcf47f3b 529 SDIO_BLOCK_SIZE);
789221ec
BZ		 530 if (ret < 0) {
531 BT_ERR("IO error in writing helper image EOF block");
532 goto done;
533 }
534
535 ret = 0;
536
537done:
538 kfree(tmphlprbuf);
59f34fb3 539 release_firmware(fw_helper);
789221ec
BZ		 540 return ret;
541}
542
543static int btmrvl_sdio_download_fw_w_helper(struct btmrvl_sdio_card *card)
544{
545 const struct firmware *fw_firmware = NULL;
546 const u8 *firmware = NULL;
547 int firmwarelen, tmpfwbufsz, ret;
548 unsigned int tries, offset;
549 u8 base0, base1;
550 void *tmpfwbuf = NULL;
551 u8 *fwbuf;
9f72c1d9 552 u16 len, blksz_dl = card->sd_blksz_fw_dl;
789221ec
BZ		 553 int txlen = 0, tx_blocks = 0, count = 0;
554
789221ec 555 ret = request_firmware(&fw_firmware, card->firmware,
dcf47f3b 556 &card->func->dev);
789221ec
BZ		 557 if ((ret < 0) || !fw_firmware) {
558 BT_ERR("request_firmware(firmware) failed, error code = %d",
dcf47f3b 559 ret);
789221ec
BZ		 560 ret = -ENOENT;
561 goto done;
562 }
563
564 firmware = fw_firmware->data;
565 firmwarelen = fw_firmware->size;
566
567 BT_DBG("Downloading FW image (%d bytes)", firmwarelen);
568
569 tmpfwbufsz = ALIGN_SZ(BTM_UPLD_SIZE, BTSDIO_DMA_ALIGN);
f8df39f1 570 tmpfwbuf = kzalloc(tmpfwbufsz, GFP_KERNEL);
789221ec
BZ		 571 if (!tmpfwbuf) {
572 BT_ERR("Unable to allocate buffer for firmware."
573 " Terminating download");
574 ret = -ENOMEM;
575 goto done;
576 }
577
789221ec
BZ		 578 /* Ensure aligned firmware buffer */
579 fwbuf = (u8 *) ALIGN_ADDR(tmpfwbuf, BTSDIO_DMA_ALIGN);
580
581 /* Perform firmware data transfer */
582 offset = 0;
583 do {
584 ret = btmrvl_sdio_poll_card_status(card,
dcf47f3b 585 CARD_IO_READY | DN_LD_CARD_RDY);
789221ec
BZ		 586 if (ret < 0) {
587 BT_ERR("FW download with helper poll status"
dcf47f3b 588 " timeout @ %d", offset);
789221ec
BZ		 589 goto done;
590 }
591
592 /* Check if there is more data ? */
593 if (offset >= firmwarelen)
594 break;
595
596 for (tries = 0; tries < MAX_POLL_TRIES; tries++) {
597 base0 = sdio_readb(card->func,
9f72c1d9 598 card->reg->sq_read_base_addr_a0, &ret);
789221ec
BZ		 599 if (ret) {
600 BT_ERR("BASE0 register read failed:"
601 " base0 = 0x%04X(%d)."
602 " Terminating download",
603 base0, base0);
604 ret = -EIO;
605 goto done;
606 }
607 base1 = sdio_readb(card->func,
9f72c1d9 608 card->reg->sq_read_base_addr_a1, &ret);
789221ec
BZ		 609 if (ret) {
610 BT_ERR("BASE1 register read failed:"
611 " base1 = 0x%04X(%d)."
612 " Terminating download",
613 base1, base1);
614 ret = -EIO;
615 goto done;
616 }
617
618 len = (((u16) base1) << 8) | base0;
619 if (len)
620 break;
621
622 udelay(10);
623 }
624
625 if (!len)
626 break;
627 else if (len > BTM_UPLD_SIZE) {
628 BT_ERR("FW download failure @%d, invalid length %d",
dcf47f3b 629 offset, len);
789221ec
BZ		 630 ret = -EINVAL;
631 goto done;
632 }
633
634 txlen = len;
635
636 if (len & BIT(0)) {
637 count++;
638 if (count > MAX_WRITE_IOMEM_RETRY) {
639 BT_ERR("FW download failure @%d, "
640 "over max retry count", offset);
641 ret = -EIO;
642 goto done;
643 }
644 BT_ERR("FW CRC error indicated by the helper: "
645 "len = 0x%04X, txlen = %d", len, txlen);
646 len &= ~BIT(0);
647 /* Set txlen to 0 so as to resend from same offset */
648 txlen = 0;
649 } else {
650 count = 0;
651
652 /* Last block ? */
653 if (firmwarelen - offset < txlen)
654 txlen = firmwarelen - offset;
655
ba34dd3d 656 tx_blocks = DIV_ROUND_UP(txlen, blksz_dl);
789221ec
BZ		 657
658 memcpy(fwbuf, &firmware[offset], txlen);
659 }
660
661 ret = sdio_writesb(card->func, card->ioport, fwbuf,
9f72c1d9 662 tx_blocks * blksz_dl);
789221ec
BZ		 663
664 if (ret < 0) {
665 BT_ERR("FW download, writesb(%d) failed @%d",
dcf47f3b 666 count, offset);
9f72c1d9
KG		 667 sdio_writeb(card->func, HOST_CMD53_FIN,
668 card->reg->cfg, &ret);
789221ec
BZ		 669 if (ret)
670 BT_ERR("writeb failed (CFG)");
671 }
672
673 offset += txlen;
674 } while (true);
675
1c6098eb 676 BT_INFO("FW download over, size %d bytes", offset);
789221ec
BZ		 677
678 ret = 0;
679
680done:
681 kfree(tmpfwbuf);
59f34fb3 682 release_firmware(fw_firmware);
789221ec
BZ		 683 return ret;
684}
685
686static int btmrvl_sdio_card_to_host(struct btmrvl_private *priv)
687{
688 u16 buf_len = 0;
42632805 689 int ret, num_blocks, blksz;
789221ec
BZ		 690 struct sk_buff *skb = NULL;
691 u32 type;
692 u8 *payload = NULL;
693 struct hci_dev *hdev = priv->btmrvl_dev.hcidev;
694 struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
695
789221ec
BZ		 696 if (!card || !card->func) {
697 BT_ERR("card or function is NULL!");
698 ret = -EINVAL;
699 goto exit;
700 }
701
702 /* Read the length of data to be transferred */
703 ret = btmrvl_sdio_read_rx_len(card, &buf_len);
704 if (ret < 0) {
705 BT_ERR("read rx_len failed");
706 ret = -EIO;
707 goto exit;
708 }
709
710 blksz = SDIO_BLOCK_SIZE;
e678bad5 711 num_blocks = DIV_ROUND_UP(buf_len, blksz);
789221ec
BZ		 712
713 if (buf_len <= SDIO_HEADER_LEN
42632805 714 || (num_blocks * blksz) > ALLOC_BUF_SIZE) {
789221ec
BZ		 715 BT_ERR("invalid packet length: %d", buf_len);
716 ret = -EINVAL;
717 goto exit;
718 }
719
720 /* Allocate buffer */
42632805 721 skb = bt_skb_alloc(num_blocks * blksz + BTSDIO_DMA_ALIGN, GFP_ATOMIC);
1f438c61 722 if (!skb) {
789221ec 723 BT_ERR("No free skb");
6ea81c41 724 ret = -ENOMEM;
789221ec
BZ		 725 goto exit;
726 }
727
3318b236
BZ		 728 if ((unsigned long) skb->data & (BTSDIO_DMA_ALIGN - 1)) {
729 skb_put(skb, (unsigned long) skb->data &
730 (BTSDIO_DMA_ALIGN - 1));
731 skb_pull(skb, (unsigned long) skb->data &
732 (BTSDIO_DMA_ALIGN - 1));
789221ec
BZ		 733 }
734
3318b236 735 payload = skb->data;
789221ec
BZ		 736
737 ret = sdio_readsb(card->func, payload, card->ioport,
42632805 738 num_blocks * blksz);
789221ec
BZ		 739 if (ret < 0) {
740 BT_ERR("readsb failed: %d", ret);
741 ret = -EIO;
742 goto exit;
743 }
744
745 /* This is SDIO specific header length: byte[2][1][0], type: byte[3]
746 * (HCI_COMMAND = 1, ACL_DATA = 2, SCO_DATA = 3, 0xFE = Vendor)
747 */
748
749 buf_len = payload[0];
9cb23dd4
AE		 750 buf_len |= payload[1] << 8;
751 buf_len |= payload[2] << 16;
752
753 if (buf_len > blksz * num_blocks) {
754 BT_ERR("Skip incorrect packet: hdrlen %d buffer %d",
755 buf_len, blksz * num_blocks);
756 ret = -EIO;
757 goto exit;
758 }
759
789221ec
BZ		 760 type = payload[3];
761
762 switch (type) {
763 case HCI_ACLDATA_PKT:
764 case HCI_SCODATA_PKT:
765 case HCI_EVENT_PKT:
618e8bc2 766 hci_skb_pkt_type(skb) = type;
789221ec
BZ		 767 skb_put(skb, buf_len);
768 skb_pull(skb, SDIO_HEADER_LEN);
769
ea1e76a3
AE		 770 if (type == HCI_EVENT_PKT) {
771 if (btmrvl_check_evtpkt(priv, skb))
e1a26170 772 hci_recv_frame(hdev, skb);
2c2453f3 773 } else {
e1a26170 774 hci_recv_frame(hdev, skb);
2c2453f3 775 }
789221ec 776
789221ec
BZ		 777 hdev->stat.byte_rx += buf_len;
778 break;
779
780 case MRVL_VENDOR_PKT:
618e8bc2 781 hci_skb_pkt_type(skb) = HCI_VENDOR_PKT;
789221ec
BZ		 782 skb_put(skb, buf_len);
783 skb_pull(skb, SDIO_HEADER_LEN);
784
785 if (btmrvl_process_event(priv, skb))
e1a26170 786 hci_recv_frame(hdev, skb);
789221ec
BZ		 787
788 hdev->stat.byte_rx += buf_len;
789 break;
790
791 default:
af901ca1 792 BT_ERR("Unknown packet type:%d", type);
78c1b8e8 793 BT_ERR("hex: %*ph", blksz * num_blocks, payload);
789221ec
BZ		 794
795 kfree_skb(skb);
796 skb = NULL;
797 break;
798 }
799
800exit:
801 if (ret) {
802 hdev->stat.err_rx++;
7923296f 803 kfree_skb(skb);
789221ec
BZ		 804 }
805
789221ec
BZ		 806 return ret;
807}
808
d1d10d78 809static int btmrvl_sdio_process_int_status(struct btmrvl_private *priv)
789221ec 810{
d1d10d78
AK		 811 ulong flags;
812 u8 ireg;
789221ec
BZ		 813 struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
814
d1d10d78
AK		 815 spin_lock_irqsave(&priv->driver_lock, flags);
816 ireg = sdio_ireg;
817 sdio_ireg = 0;
818 spin_unlock_irqrestore(&priv->driver_lock, flags);
789221ec 819
d1d10d78
AK		 820 sdio_claim_host(card->func);
821 if (ireg & DN_LD_HOST_INT_STATUS) {
789221ec
BZ		 822 if (priv->btmrvl_dev.tx_dnld_rdy)
823 BT_DBG("tx_done already received: "
d1d10d78 824 " int_status=0x%x", ireg);
789221ec
BZ		 825 else
826 priv->btmrvl_dev.tx_dnld_rdy = true;
827 }
828
d1d10d78 829 if (ireg & UP_LD_HOST_INT_STATUS)
789221ec
BZ		 830 btmrvl_sdio_card_to_host(priv);
831
d1d10d78 832 sdio_release_host(card->func);
789221ec 833
d1d10d78 834 return 0;
789221ec
BZ		 835}
836
0d367408
BZ		 837static int btmrvl_sdio_read_to_clear(struct btmrvl_sdio_card *card, u8 *ireg)
838{
839 struct btmrvl_adapter *adapter = card->priv->adapter;
840 int ret;
841
842 ret = sdio_readsb(card->func, adapter->hw_regs, 0, SDIO_BLOCK_SIZE);
843 if (ret) {
844 BT_ERR("sdio_readsb: read int hw_regs failed: %d", ret);
845 return ret;
846 }
847
848 *ireg = adapter->hw_regs[card->reg->host_intstatus];
849 BT_DBG("hw_regs[%#x]=%#x", card->reg->host_intstatus, *ireg);
850
851 return 0;
852}
853
8af4840a
BZ		 854static int btmrvl_sdio_write_to_clear(struct btmrvl_sdio_card *card, u8 *ireg)
855{
856 int ret;
857
858 *ireg = sdio_readb(card->func, card->reg->host_intstatus, &ret);
859 if (ret) {
860 BT_ERR("sdio_readb: read int status failed: %d", ret);
861 return ret;
862 }
863
864 if (*ireg) {
865 /*
866 * DN_LD_HOST_INT_STATUS and/or UP_LD_HOST_INT_STATUS
867 * Clear the interrupt status register and re-enable the
868 * interrupt.
869 */
870 BT_DBG("int_status = 0x%x", *ireg);
871
872 sdio_writeb(card->func, ~(*ireg) & (DN_LD_HOST_INT_STATUS |
873 UP_LD_HOST_INT_STATUS),
874 card->reg->host_intstatus, &ret);
875 if (ret) {
876 BT_ERR("sdio_writeb: clear int status failed: %d", ret);
877 return ret;
878 }
879 }
880
881 return 0;
882}
883
789221ec
BZ		 884static void btmrvl_sdio_interrupt(struct sdio_func *func)
885{
886 struct btmrvl_private *priv;
789221ec 887 struct btmrvl_sdio_card *card;
d1d10d78 888 ulong flags;
789221ec 889 u8 ireg = 0;
d1d10d78 890 int ret;
789221ec 891
789221ec 892 card = sdio_get_drvdata(func);
d1d10d78 893 if (!card || !card->priv) {
7365d475
AK		 894 BT_ERR("sbi_interrupt(%p) card or priv is NULL, card=%p",
895 func, card);
d1d10d78
AK		 896 return;
897 }
789221ec 898
d1d10d78 899 priv = card->priv;
789221ec 900
7b4b8740
AK		 901 if (priv->surprise_removed)
902 return;
903
0d367408
BZ		 904 if (card->reg->int_read_to_clear)
905 ret = btmrvl_sdio_read_to_clear(card, &ireg);
906 else
907 ret = btmrvl_sdio_write_to_clear(card, &ireg);
908
8af4840a 909 if (ret)
d1d10d78 910 return;
d1d10d78
AK		 911
912 spin_lock_irqsave(&priv->driver_lock, flags);
913 sdio_ireg |= ireg;
914 spin_unlock_irqrestore(&priv->driver_lock, flags);
915
916 btmrvl_interrupt(priv);
789221ec
BZ		 917}
918
919static int btmrvl_sdio_register_dev(struct btmrvl_sdio_card *card)
920{
789221ec 921 struct sdio_func *func;
dcf47f3b
MH		 922 u8 reg;
923 int ret = 0;
789221ec 924
789221ec
BZ		 925 if (!card || !card->func) {
926 BT_ERR("Error: card or function is NULL!");
927 ret = -EINVAL;
928 goto failed;
929 }
930
931 func = card->func;
932
789221ec
BZ		 933 sdio_claim_host(func);
934
935 ret = sdio_enable_func(func);
936 if (ret) {
937 BT_ERR("sdio_enable_func() failed: ret=%d", ret);
938 ret = -EIO;
939 goto release_host;
940 }
941
942 ret = sdio_claim_irq(func, btmrvl_sdio_interrupt);
943 if (ret) {
944 BT_ERR("sdio_claim_irq failed: ret=%d", ret);
945 ret = -EIO;
946 goto disable_func;
947 }
948
949 ret = sdio_set_block_size(card->func, SDIO_BLOCK_SIZE);
950 if (ret) {
951 BT_ERR("cannot set SDIO block size");
952 ret = -EIO;
953 goto release_irq;
954 }
955
9f72c1d9 956 reg = sdio_readb(func, card->reg->io_port_0, &ret);
789221ec
BZ		 957 if (ret < 0) {
958 ret = -EIO;
959 goto release_irq;
960 }
961
962 card->ioport = reg;
963
9f72c1d9 964 reg = sdio_readb(func, card->reg->io_port_1, &ret);
789221ec
BZ		 965 if (ret < 0) {
966 ret = -EIO;
967 goto release_irq;
968 }
969
970 card->ioport |= (reg << 8);
971
9f72c1d9 972 reg = sdio_readb(func, card->reg->io_port_2, &ret);
789221ec
BZ		 973 if (ret < 0) {
974 ret = -EIO;
975 goto release_irq;
976 }
977
978 card->ioport |= (reg << 16);
979
980 BT_DBG("SDIO FUNC%d IO port: 0x%x", func->num, card->ioport);
981
0d367408
BZ		 982 if (card->reg->int_read_to_clear) {
983 reg = sdio_readb(func, card->reg->host_int_rsr, &ret);
984 if (ret < 0) {
985 ret = -EIO;
986 goto release_irq;
987 }
988 sdio_writeb(func, reg | 0x3f, card->reg->host_int_rsr, &ret);
989 if (ret < 0) {
990 ret = -EIO;
991 goto release_irq;
992 }
993
994 reg = sdio_readb(func, card->reg->card_misc_cfg, &ret);
995 if (ret < 0) {
996 ret = -EIO;
997 goto release_irq;
998 }
999 sdio_writeb(func, reg | 0x10, card->reg->card_misc_cfg, &ret);
1000 if (ret < 0) {
1001 ret = -EIO;
1002 goto release_irq;
1003 }
1004 }
1005
789221ec
BZ		 1006 sdio_set_drvdata(func, card);
1007
1008 sdio_release_host(func);
1009
789221ec
BZ		 1010 return 0;
1011
1012release_irq:
1013 sdio_release_irq(func);
1014
1015disable_func:
1016 sdio_disable_func(func);
1017
1018release_host:
1019 sdio_release_host(func);
1020
1021failed:
789221ec
BZ		 1022 return ret;
1023}
1024
1025static int btmrvl_sdio_unregister_dev(struct btmrvl_sdio_card *card)
1026{
789221ec
BZ		 1027 if (card && card->func) {
1028 sdio_claim_host(card->func);
1029 sdio_release_irq(card->func);
1030 sdio_disable_func(card->func);
1031 sdio_release_host(card->func);
1032 sdio_set_drvdata(card->func, NULL);
1033 }
1034
789221ec
BZ		 1035 return 0;
1036}
1037
1038static int btmrvl_sdio_enable_host_int(struct btmrvl_sdio_card *card)
1039{
1040 int ret;
1041
9374253f 1042 if (!card || !card->func)
789221ec 1043 return -EINVAL;
789221ec
BZ		 1044
1045 sdio_claim_host(card->func);
1046
1047 ret = btmrvl_sdio_enable_host_int_mask(card, HIM_ENABLE);
1048
1049 btmrvl_sdio_get_rx_unit(card);
1050
1051 sdio_release_host(card->func);
1052
789221ec
BZ		 1053 return ret;
1054}
1055
1056static int btmrvl_sdio_disable_host_int(struct btmrvl_sdio_card *card)
1057{
1058 int ret;
1059
9374253f 1060 if (!card || !card->func)
789221ec 1061 return -EINVAL;
789221ec
BZ		 1062
1063 sdio_claim_host(card->func);
1064
1065 ret = btmrvl_sdio_disable_host_int_mask(card, HIM_DISABLE);
1066
1067 sdio_release_host(card->func);
1068
789221ec
BZ		 1069 return ret;
1070}
1071
1072static int btmrvl_sdio_host_to_card(struct btmrvl_private *priv,
1073 u8 *payload, u16 nb)
1074{
1075 struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
1076 int ret = 0;
789221ec
BZ		 1077 int blksz;
1078 int i = 0;
1079 u8 *buf = NULL;
1080 void *tmpbuf = NULL;
1081 int tmpbufsz;
1082
789221ec
BZ		 1083 if (!card || !card->func) {
1084 BT_ERR("card or function is NULL!");
789221ec
BZ		 1085 return -EINVAL;
1086 }
1087
d2f30240
RL		 1088 blksz = DIV_ROUND_UP(nb, SDIO_BLOCK_SIZE) * SDIO_BLOCK_SIZE;
1089
789221ec 1090 buf = payload;
d2f30240
RL		 1091 if ((unsigned long) payload & (BTSDIO_DMA_ALIGN - 1) ||
1092 nb < blksz) {
1093 tmpbufsz = ALIGN_SZ(blksz, BTSDIO_DMA_ALIGN) +
1094 BTSDIO_DMA_ALIGN;
5959809d
JL		 1095 tmpbuf = kzalloc(tmpbufsz, GFP_KERNEL);
1096 if (!tmpbuf)
1097 return -ENOMEM;
789221ec
BZ		 1098 buf = (u8 *) ALIGN_ADDR(tmpbuf, BTSDIO_DMA_ALIGN);
1099 memcpy(buf, payload, nb);
1100 }
1101
789221ec
BZ		 1102 sdio_claim_host(card->func);
1103
1104 do {
1105 /* Transfer data to card */
1106 ret = sdio_writesb(card->func, card->ioport, buf,
d2f30240 1107 blksz);
789221ec
BZ		 1108 if (ret < 0) {
1109 i++;
1110 BT_ERR("i=%d writesb failed: %d", i, ret);
78c1b8e8 1111 BT_ERR("hex: %*ph", nb, payload);
789221ec
BZ		 1112 ret = -EIO;
1113 if (i > MAX_WRITE_IOMEM_RETRY)
1114 goto exit;
1115 }
1116 } while (ret);
1117
1118 priv->btmrvl_dev.tx_dnld_rdy = false;
1119
1120exit:
1121 sdio_release_host(card->func);
88d1a0cf 1122 kfree(tmpbuf);
789221ec 1123
789221ec
BZ		 1124 return ret;
1125}
1126
1127static int btmrvl_sdio_download_fw(struct btmrvl_sdio_card *card)
1128{
faff7f74 1129 int ret;
9f72c1d9
KG		 1130 u8 fws0;
1131 int pollnum = MAX_POLL_TRIES;
789221ec 1132
789221ec
BZ		 1133 if (!card || !card->func) {
1134 BT_ERR("card or function is NULL!");
789221ec
BZ		 1135 return -EINVAL;
1136 }
789221ec
BZ		 1137
1138 if (!btmrvl_sdio_verify_fw_download(card, 1)) {
1139 BT_DBG("Firmware already downloaded!");
c1c999e2 1140 return 0;
789221ec
BZ		 1141 }
1142
c1c999e2
AF		 1143 sdio_claim_host(card->func);
1144
9f72c1d9
KG		 1145 /* Check if other function driver is downloading the firmware */
1146 fws0 = sdio_readb(card->func, card->reg->card_fw_status0, &ret);
789221ec 1147 if (ret) {
9f72c1d9 1148 BT_ERR("Failed to read FW downloading status!");
789221ec
BZ		 1149 ret = -EIO;
1150 goto done;
1151 }
9f72c1d9
KG		 1152 if (fws0) {
1153 BT_DBG("BT not the winner (%#x). Skip FW downloading", fws0);
1154
1155 /* Give other function more time to download the firmware */
1156 pollnum *= 10;
1157 } else {
1158 if (card->helper) {
1159 ret = btmrvl_sdio_download_helper(card);
1160 if (ret) {
1161 BT_ERR("Failed to download helper!");
1162 ret = -EIO;
1163 goto done;
1164 }
1165 }
789221ec 1166
9f72c1d9
KG		 1167 if (btmrvl_sdio_download_fw_w_helper(card)) {
1168 BT_ERR("Failed to download firmware!");
1169 ret = -EIO;
1170 goto done;
1171 }
789221ec
BZ		 1172 }
1173
69676b1c
AF		 1174 /*
1175 * winner or not, with this test the FW synchronizes when the
1176 * module can continue its initialization
1177 */
9f72c1d9 1178 if (btmrvl_sdio_verify_fw_download(card, pollnum)) {
789221ec 1179 BT_ERR("FW failed to be active in time!");
86f7ac77
CRL		 1180 ret = -ETIMEDOUT;
1181 goto done;
789221ec
BZ		 1182 }
1183
4863e4cc
AN		 1184 sdio_release_host(card->func);
1185
c1c999e2
AF		 1186 return 0;
1187
789221ec
BZ		 1188done:
1189 sdio_release_host(card->func);
789221ec
BZ		 1190 return ret;
1191}
1192
1193static int btmrvl_sdio_wakeup_fw(struct btmrvl_private *priv)
1194{
1195 struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
1196 int ret = 0;
1197
789221ec
BZ		 1198 if (!card || !card->func) {
1199 BT_ERR("card or function is NULL!");
789221ec
BZ		 1200 return -EINVAL;
1201 }
1202
1203 sdio_claim_host(card->func);
1204
9f72c1d9 1205 sdio_writeb(card->func, HOST_POWER_UP, card->reg->cfg, &ret);
789221ec
BZ		 1206
1207 sdio_release_host(card->func);
1208
1209 BT_DBG("wake up firmware");
1210
789221ec
BZ		 1211 return ret;
1212}
1213
dc759613
XH		 1214static void btmrvl_sdio_dump_regs(struct btmrvl_private *priv)
1215{
1216 struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
1217 int ret = 0;
1218 unsigned int reg, reg_start, reg_end;
1219 char buf[256], *ptr;
1220 u8 loop, func, data;
1221 int MAX_LOOP = 2;
1222
1223 btmrvl_sdio_wakeup_fw(priv);
1224 sdio_claim_host(card->func);
1225
1226 for (loop = 0; loop < MAX_LOOP; loop++) {
1227 memset(buf, 0, sizeof(buf));
1228 ptr = buf;
1229
1230 if (loop == 0) {
1231 /* Read the registers of SDIO function0 */
1232 func = loop;
1233 reg_start = 0;
1234 reg_end = 9;
1235 } else {
1236 func = 2;
1237 reg_start = 0;
1238 reg_end = 0x09;
1239 }
1240
1241 ptr += sprintf(ptr, "SDIO Func%d (%#x-%#x): ",
1242 func, reg_start, reg_end);
1243 for (reg = reg_start; reg <= reg_end; reg++) {
1244 if (func == 0)
1245 data = sdio_f0_readb(card->func, reg, &ret);
1246 else
1247 data = sdio_readb(card->func, reg, &ret);
1248
1249 if (!ret) {
1250 ptr += sprintf(ptr, "%02x ", data);
1251 } else {
1252 ptr += sprintf(ptr, "ERR");
1253 break;
1254 }
1255 }
1256
1257 BT_INFO("%s", buf);
1258 }
1259
1260 sdio_release_host(card->func);
1261}
1262
1263/* This function read/write firmware */
1264static enum
1265rdwr_status btmrvl_sdio_rdwr_firmware(struct btmrvl_private *priv,
1266 u8 doneflag)
1267{
1268 struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
1269 int ret, tries;
1270 u8 ctrl_data = 0;
1271
1272 sdio_writeb(card->func, FW_DUMP_HOST_READY, card->reg->fw_dump_ctrl,
1273 &ret);
1274
1275 if (ret) {
1276 BT_ERR("SDIO write err");
1277 return RDWR_STATUS_FAILURE;
1278 }
1279
1280 for (tries = 0; tries < MAX_POLL_TRIES; tries++) {
1281 ctrl_data = sdio_readb(card->func, card->reg->fw_dump_ctrl,
1282 &ret);
1283
1284 if (ret) {
1285 BT_ERR("SDIO read err");
1286 return RDWR_STATUS_FAILURE;
1287 }
1288
1289 if (ctrl_data == FW_DUMP_DONE)
1290 break;
1291 if (doneflag && ctrl_data == doneflag)
1292 return RDWR_STATUS_DONE;
1293 if (ctrl_data != FW_DUMP_HOST_READY) {
1294 BT_INFO("The ctrl reg was changed, re-try again!");
1295 sdio_writeb(card->func, FW_DUMP_HOST_READY,
1296 card->reg->fw_dump_ctrl, &ret);
1297 if (ret) {
1298 BT_ERR("SDIO write err");
1299 return RDWR_STATUS_FAILURE;
1300 }
1301 }
1302 usleep_range(100, 200);
1303 }
1304
1305 if (ctrl_data == FW_DUMP_HOST_READY) {
1306 BT_ERR("Fail to pull ctrl_data");
1307 return RDWR_STATUS_FAILURE;
1308 }
1309
1310 return RDWR_STATUS_SUCCESS;
1311}
1312
1313/* This function dump sdio register and memory data */
1314static void btmrvl_sdio_dump_firmware(struct btmrvl_private *priv)
1315{
1316 struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
1317 int ret = 0;
1318 unsigned int reg, reg_start, reg_end;
1319 enum rdwr_status stat;
1320 u8 *dbg_ptr, *end_ptr, *fw_dump_data, *fw_dump_ptr;
a1e85f04 1321 u8 dump_num = 0, idx, i, read_reg, doneflag = 0;
dc759613
XH		 1322 u32 memory_size, fw_dump_len = 0;
1323
1324 /* dump sdio register first */
1325 btmrvl_sdio_dump_regs(priv);
1326
1327 if (!card->supports_fw_dump) {
1328 BT_ERR("Firmware dump not supported for this card!");
1329 return;
1330 }
1331
1332 for (idx = 0; idx < ARRAY_SIZE(mem_type_mapping_tbl); idx++) {
1333 struct memory_type_mapping *entry = &mem_type_mapping_tbl[idx];
1334
1335 if (entry->mem_ptr) {
1336 vfree(entry->mem_ptr);
1337 entry->mem_ptr = NULL;
1338 }
1339 entry->mem_size = 0;
1340 }
1341
1342 btmrvl_sdio_wakeup_fw(priv);
1343 sdio_claim_host(card->func);
1344
1345 BT_INFO("== btmrvl firmware dump start ==");
1346
1347 stat = btmrvl_sdio_rdwr_firmware(priv, doneflag);
1348 if (stat == RDWR_STATUS_FAILURE)
1349 goto done;
1350
1351 reg = card->reg->fw_dump_start;
1352 /* Read the number of the memories which will dump */
1353 dump_num = sdio_readb(card->func, reg, &ret);
1354
1355 if (ret) {
1356 BT_ERR("SDIO read memory length err");
1357 goto done;
1358 }
1359
1360 /* Read the length of every memory which will dump */
1361 for (idx = 0; idx < dump_num; idx++) {
1362 struct memory_type_mapping *entry = &mem_type_mapping_tbl[idx];
1363
1364 stat = btmrvl_sdio_rdwr_firmware(priv, doneflag);
1365 if (stat == RDWR_STATUS_FAILURE)
1366 goto done;
1367
1368 memory_size = 0;
1369 reg = card->reg->fw_dump_start;
1370 for (i = 0; i < 4; i++) {
1371 read_reg = sdio_readb(card->func, reg, &ret);
1372 if (ret) {
1373 BT_ERR("SDIO read err");
1374 goto done;
1375 }
1376 memory_size |= (read_reg << i*8);
1377 reg++;
1378 }
1379
1380 if (memory_size == 0) {
1381 BT_INFO("Firmware dump finished!");
475b9eac
NK		 1382 sdio_writeb(card->func, FW_DUMP_READ_DONE,
1383 card->reg->fw_dump_ctrl, &ret);
1384 if (ret) {
1385 BT_ERR("SDIO Write MEMDUMP_FINISH ERR");
1386 goto done;
1387 }
dc759613
XH		 1388 break;
1389 }
1390
1391 BT_INFO("%s_SIZE=0x%x", entry->mem_name, memory_size);
1392 entry->mem_ptr = vzalloc(memory_size + 1);
1393 entry->mem_size = memory_size;
1394 if (!entry->mem_ptr) {
1395 BT_ERR("Vzalloc %s failed", entry->mem_name);
1396 goto done;
1397 }
1398
1399 fw_dump_len += (strlen("========Start dump ") +
1400 strlen(entry->mem_name) +
1401 strlen("========\n") +
1402 (memory_size + 1) +
1403 strlen("\n========End dump========\n"));
1404
1405 dbg_ptr = entry->mem_ptr;
1406 end_ptr = dbg_ptr + memory_size;
1407
1408 doneflag = entry->done_flag;
1409 BT_INFO("Start %s output, please wait...",
1410 entry->mem_name);
1411
1412 do {
1413 stat = btmrvl_sdio_rdwr_firmware(priv, doneflag);
1414 if (stat == RDWR_STATUS_FAILURE)
1415 goto done;
1416
1417 reg_start = card->reg->fw_dump_start;
1418 reg_end = card->reg->fw_dump_end;
1419 for (reg = reg_start; reg <= reg_end; reg++) {
1420 *dbg_ptr = sdio_readb(card->func, reg, &ret);
1421 if (ret) {
1422 BT_ERR("SDIO read err");
1423 goto done;
1424 }
1425 if (dbg_ptr < end_ptr)
1426 dbg_ptr++;
1427 else
1428 BT_ERR("Allocated buffer not enough");
1429 }
1430
1431 if (stat != RDWR_STATUS_DONE) {
1432 continue;
1433 } else {
1434 BT_INFO("%s done: size=0x%tx",
1435 entry->mem_name,
1436 dbg_ptr - entry->mem_ptr);
1437 break;
1438 }
1439 } while (1);
1440 }
1441
1442 BT_INFO("== btmrvl firmware dump end ==");
1443
1444done:
1445 sdio_release_host(card->func);
1446
1447 if (fw_dump_len == 0)
1448 return;
1449
1450 fw_dump_data = vzalloc(fw_dump_len+1);
1451 if (!fw_dump_data) {
1452 BT_ERR("Vzalloc fw_dump_data fail!");
1453 return;
1454 }
1455 fw_dump_ptr = fw_dump_data;
1456
1457 /* Dump all the memory data into single file, a userspace script will
1458 be used to split all the memory data to multiple files*/
1459 BT_INFO("== btmrvl firmware dump to /sys/class/devcoredump start");
1460 for (idx = 0; idx < dump_num; idx++) {
1461 struct memory_type_mapping *entry = &mem_type_mapping_tbl[idx];
1462
1463 if (entry->mem_ptr) {
1464 strcpy(fw_dump_ptr, "========Start dump ");
1465 fw_dump_ptr += strlen("========Start dump ");
1466
1467 strcpy(fw_dump_ptr, entry->mem_name);
1468 fw_dump_ptr += strlen(entry->mem_name);
1469
1470 strcpy(fw_dump_ptr, "========\n");
1471 fw_dump_ptr += strlen("========\n");
1472
1473 memcpy(fw_dump_ptr, entry->mem_ptr, entry->mem_size);
1474 fw_dump_ptr += entry->mem_size;
1475
1476 strcpy(fw_dump_ptr, "\n========End dump========\n");
1477 fw_dump_ptr += strlen("\n========End dump========\n");
1478
1479 vfree(mem_type_mapping_tbl[idx].mem_ptr);
1480 mem_type_mapping_tbl[idx].mem_ptr = NULL;
1481 }
1482 }
1483
1484 /* fw_dump_data will be free in device coredump release function
1485 after 5 min*/
d4902632 1486 dev_coredumpv(&card->func->dev, fw_dump_data, fw_dump_len, GFP_KERNEL);
dc759613
XH		 1487 BT_INFO("== btmrvl firmware dump to /sys/class/devcoredump end");
1488}
1489
789221ec 1490static int btmrvl_sdio_probe(struct sdio_func *func,
dcf47f3b 1491 const struct sdio_device_id *id)
789221ec
BZ		 1492{
1493 int ret = 0;
1494 struct btmrvl_private *priv = NULL;
1495 struct btmrvl_sdio_card *card = NULL;
1496
789221ec
BZ		 1497 BT_INFO("vendor=0x%x, device=0x%x, class=%d, fn=%d",
1498 id->vendor, id->device, id->class, func->num);
1499
eb17ea3b
SK		 1500 card = devm_kzalloc(&func->dev, sizeof(*card), GFP_KERNEL);
1501 if (!card)
1502 return -ENOMEM;
789221ec
BZ		 1503
1504 card->func = func;
1505
dcf47f3b
MH		 1506 if (id->driver_data) {
1507 struct btmrvl_sdio_device *data = (void *) id->driver_data;
9f72c1d9 1508 card->helper = data->helper;
dcf47f3b 1509 card->firmware = data->firmware;
9f72c1d9
KG		 1510 card->reg = data->reg;
1511 card->sd_blksz_fw_dl = data->sd_blksz_fw_dl;
4df82b59 1512 card->support_pscan_win_report = data->support_pscan_win_report;
dc759613 1513 card->supports_fw_dump = data->supports_fw_dump;
dcf47f3b
MH		 1514 }
1515
789221ec
BZ		 1516 if (btmrvl_sdio_register_dev(card) < 0) {
1517 BT_ERR("Failed to register BT device!");
eb17ea3b 1518 return -ENODEV;
789221ec
BZ		 1519 }
1520
1521 /* Disable the interrupts on the card */
1522 btmrvl_sdio_disable_host_int(card);
1523
1524 if (btmrvl_sdio_download_fw(card)) {
1525 BT_ERR("Downloading firmware failed!");
1526 ret = -ENODEV;
1527 goto unreg_dev;
1528 }
1529
789221ec
BZ		 1530 btmrvl_sdio_enable_host_int(card);
1531
bb7f4f0b
XH		 1532 /* Device tree node parsing and platform specific configuration*/
1533 btmrvl_sdio_probe_of(&func->dev, card);
1534
789221ec
BZ		 1535 priv = btmrvl_add_card(card);
1536 if (!priv) {
1537 BT_ERR("Initializing card failed!");
1538 ret = -ENODEV;
1539 goto disable_host_int;
1540 }
1541
1542 card->priv = priv;
1543
1544 /* Initialize the interface specific function pointers */
1545 priv->hw_host_to_card = btmrvl_sdio_host_to_card;
1546 priv->hw_wakeup_firmware = btmrvl_sdio_wakeup_fw;
d1d10d78 1547 priv->hw_process_int_status = btmrvl_sdio_process_int_status;
dc759613 1548 priv->firmware_dump = btmrvl_sdio_dump_firmware;
789221ec 1549
64061607
BZ		 1550 if (btmrvl_register_hdev(priv)) {
1551 BT_ERR("Register hdev failed!");
1552 ret = -ENODEV;
1553 goto disable_host_int;
1554 }
1555
789221ec
BZ		 1556 return 0;
1557
1558disable_host_int:
1559 btmrvl_sdio_disable_host_int(card);
1560unreg_dev:
1561 btmrvl_sdio_unregister_dev(card);
789221ec
BZ		 1562 return ret;
1563}
1564
1565static void btmrvl_sdio_remove(struct sdio_func *func)
1566{
1567 struct btmrvl_sdio_card *card;
1568
789221ec
BZ		 1569 if (func) {
1570 card = sdio_get_drvdata(func);
1571 if (card) {
1572 /* Send SHUTDOWN command & disable interrupt
1573 * if user removes the module.
1574 */
1575 if (user_rmmod) {
1576 btmrvl_send_module_cfg_cmd(card->priv,
1577 MODULE_SHUTDOWN_REQ);
1578 btmrvl_sdio_disable_host_int(card);
1579 }
92322599 1580 BT_DBG("unregister dev");
7b4b8740 1581 card->priv->surprise_removed = true;
789221ec
BZ		 1582 btmrvl_sdio_unregister_dev(card);
1583 btmrvl_remove_card(card->priv);
789221ec
BZ		 1584 }
1585 }
789221ec
BZ		 1586}
1587
ba54a16f
AK		 1588static int btmrvl_sdio_suspend(struct device *dev)
1589{
1590 struct sdio_func *func = dev_to_sdio_func(dev);
1591 struct btmrvl_sdio_card *card;
1592 struct btmrvl_private *priv;
1593 mmc_pm_flag_t pm_flags;
1594 struct hci_dev *hcidev;
1595
1596 if (func) {
1597 pm_flags = sdio_get_host_pm_caps(func);
1598 BT_DBG("%s: suspend: PM flags = 0x%x", sdio_func_id(func),
1599 pm_flags);
1600 if (!(pm_flags & MMC_PM_KEEP_POWER)) {
1601 BT_ERR("%s: cannot remain alive while suspended",
1602 sdio_func_id(func));
1603 return -ENOSYS;
1604 }
1605 card = sdio_get_drvdata(func);
1606 if (!card || !card->priv) {
1607 BT_ERR("card or priv structure is not valid");
1608 return 0;
1609 }
1610 } else {
1611 BT_ERR("sdio_func is not specified");
1612 return 0;
1613 }
1614
bb7f4f0b
XH		 1615 /* Enable platform specific wakeup interrupt */
1616 if (card->plt_wake_cfg && card->plt_wake_cfg->irq_bt >= 0) {
1617 card->plt_wake_cfg->wake_by_bt = false;
1618 enable_irq(card->plt_wake_cfg->irq_bt);
1619 enable_irq_wake(card->plt_wake_cfg->irq_bt);
1620 }
1621
ba54a16f 1622 priv = card->priv;
8cf60cf2 1623 priv->adapter->is_suspending = true;
5bf8a748
CRL		 1624 hcidev = priv->btmrvl_dev.hcidev;
1625 BT_DBG("%s: SDIO suspend", hcidev->name);
1626 hci_suspend_dev(hcidev);
ba54a16f
AK		 1627
1628 if (priv->adapter->hs_state != HS_ACTIVATED) {
1629 if (btmrvl_enable_hs(priv)) {
8f91566f 1630 BT_ERR("HS not activated, suspend failed!");
6eb7bd66
XH		 1631 /* Disable platform specific wakeup interrupt */
1632 if (card->plt_wake_cfg &&
1633 card->plt_wake_cfg->irq_bt >= 0) {
1634 disable_irq_wake(card->plt_wake_cfg->irq_bt);
1635 disable_irq(card->plt_wake_cfg->irq_bt);
1636 }
1637
e7acf430 1638 priv->adapter->is_suspending = false;
ba54a16f
AK		 1639 return -EBUSY;
1640 }
1641 }
ba54a16f 1642
8cf60cf2 1643 priv->adapter->is_suspending = false;
ba54a16f
AK		 1644 priv->adapter->is_suspended = true;
1645
1646 /* We will keep the power when hs enabled successfully */
1647 if (priv->adapter->hs_state == HS_ACTIVATED) {
1648 BT_DBG("suspend with MMC_PM_KEEP_POWER");
1649 return sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER);
ba54a16f 1650 }
f1554b7b 1651
1652 BT_DBG("suspend without MMC_PM_KEEP_POWER");
1653 return 0;
ba54a16f
AK		 1654}
1655
1656static int btmrvl_sdio_resume(struct device *dev)
1657{
1658 struct sdio_func *func = dev_to_sdio_func(dev);
1659 struct btmrvl_sdio_card *card;
1660 struct btmrvl_private *priv;
1661 mmc_pm_flag_t pm_flags;
1662 struct hci_dev *hcidev;
1663
1664 if (func) {
1665 pm_flags = sdio_get_host_pm_caps(func);
1666 BT_DBG("%s: resume: PM flags = 0x%x", sdio_func_id(func),
1667 pm_flags);
1668 card = sdio_get_drvdata(func);
1669 if (!card || !card->priv) {
1670 BT_ERR("card or priv structure is not valid");
1671 return 0;
1672 }
1673 } else {
1674 BT_ERR("sdio_func is not specified");
1675 return 0;
1676 }
1677 priv = card->priv;
1678
1679 if (!priv->adapter->is_suspended) {
1680 BT_DBG("device already resumed");
1681 return 0;
1682 }
1683
ba54a16f
AK		 1684 priv->hw_wakeup_firmware(priv);
1685 priv->adapter->hs_state = HS_DEACTIVATED;
5bf8a748 1686 hcidev = priv->btmrvl_dev.hcidev;
ba54a16f 1687 BT_DBG("%s: HS DEACTIVATED in resume!", hcidev->name);
5bf8a748
CRL		 1688 priv->adapter->is_suspended = false;
1689 BT_DBG("%s: SDIO resume", hcidev->name);
1690 hci_resume_dev(hcidev);
ba54a16f 1691
bb7f4f0b
XH		 1692 /* Disable platform specific wakeup interrupt */
1693 if (card->plt_wake_cfg && card->plt_wake_cfg->irq_bt >= 0) {
1694 disable_irq_wake(card->plt_wake_cfg->irq_bt);
9af02d86
JC		 1695 disable_irq(card->plt_wake_cfg->irq_bt);
1696 if (card->plt_wake_cfg->wake_by_bt)
1697 /* Undo our disable, since interrupt handler already
1698 * did this.
1699 */
1700 enable_irq(card->plt_wake_cfg->irq_bt);
bb7f4f0b
XH		 1701 }
1702
ba54a16f
AK		 1703 return 0;
1704}
1705
1706static const struct dev_pm_ops btmrvl_sdio_pm_ops = {
1707 .suspend = btmrvl_sdio_suspend,
1708 .resume = btmrvl_sdio_resume,
1709};
1710
789221ec
BZ		 1711static struct sdio_driver bt_mrvl_sdio = {
1712 .name = "btmrvl_sdio",
1713 .id_table = btmrvl_sdio_ids,
1714 .probe = btmrvl_sdio_probe,
1715 .remove = btmrvl_sdio_remove,
ba54a16f
AK		 1716 .drv = {
1717 .owner = THIS_MODULE,
1718 .pm = &btmrvl_sdio_pm_ops,
1719 }
789221ec
BZ		 1720};
1721
8e5b2308 1722static int __init btmrvl_sdio_init_module(void)
789221ec 1723{
789221ec
BZ		 1724 if (sdio_register_driver(&bt_mrvl_sdio) != 0) {
1725 BT_ERR("SDIO Driver Registration Failed");
789221ec
BZ		 1726 return -ENODEV;
1727 }
1728
1729 /* Clear the flag in case user removes the card. */
1730 user_rmmod = 0;
1731
789221ec
BZ		 1732 return 0;
1733}
1734
8e5b2308 1735static void __exit btmrvl_sdio_exit_module(void)
789221ec 1736{
789221ec
BZ		 1737 /* Set the flag as user is removing this module. */
1738 user_rmmod = 1;
1739
1740 sdio_unregister_driver(&bt_mrvl_sdio);
789221ec
BZ		 1741}
1742
1743module_init(btmrvl_sdio_init_module);
1744module_exit(btmrvl_sdio_exit_module);
1745
1746MODULE_AUTHOR("Marvell International Ltd.");
9666fb35 1747MODULE_DESCRIPTION("Marvell BT-over-SDIO driver ver " VERSION);
789221ec
BZ		 1748MODULE_VERSION(VERSION);
1749MODULE_LICENSE("GPL v2");
77189df4
LR		 1750MODULE_FIRMWARE("mrvl/sd8688_helper.bin");
1751MODULE_FIRMWARE("mrvl/sd8688.bin");
9f72c1d9 1752MODULE_FIRMWARE("mrvl/sd8787_uapsta.bin");
2ac654f7 1753MODULE_FIRMWARE("mrvl/sd8797_uapsta.bin");
3907d558 1754MODULE_FIRMWARE("mrvl/sd8887_uapsta.bin");
22f2efed 1755MODULE_FIRMWARE("mrvl/sd8897_uapsta.bin");
f0ef6748 1756MODULE_FIRMWARE("mrvl/sd8997_uapsta.bin");
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