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Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
[cris-mirror.git] / drivers / bluetooth / btmrvl_sdio.c
blob7dbb4463b53979cffcebd741926c3c2a1b4978a0
1 /**
2 * Marvell BT-over-SDIO driver: SDIO interface related functions.
3 *
4 * Copyright (C) 2009, Marvell International Ltd.
5 *
6 * This software file (the "File") is distributed by Marvell International
7 * Ltd. under the terms of the GNU General Public License Version 2, June 1991
8 * (the "License"). You may use, redistribute and/or modify this File in
9 * accordance with the terms and conditions of the License, a copy of which
10 * is available by writing to the Free Software Foundation, Inc.,
11 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
12 * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
13 *
14 *
15 * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
17 * ARE EXPRESSLY DISCLAIMED. The License provides additional details about
18 * this warranty disclaimer.
19 **/
20
21 #include <linux/firmware.h>
22 #include <linux/slab.h>
23 #include <linux/suspend.h>
24
25 #include <linux/mmc/sdio_ids.h>
26 #include <linux/mmc/sdio_func.h>
27 #include <linux/module.h>
28 #include <linux/devcoredump.h>
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
38 static 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
56 static const struct of_device_id btmrvl_sdio_of_match_table[] = {
57 { .compatible = "marvell,sd8897-bt" },
58 { .compatible = "marvell,sd8997-bt" },
59 { }
60 };
61
62 static irqreturn_t btmrvl_wake_irq_bt(int irq, void *priv)
63 {
64 struct btmrvl_sdio_card *card = priv;
65 struct btmrvl_plt_wake_cfg *cfg = card->plt_wake_cfg;
66
67 pr_info("%s: wake by bt\n", __func__);
68 cfg->wake_by_bt = true;
69 disable_irq_nosync(irq);
70
71 pm_wakeup_event(&card->func->dev, 0);
72 pm_system_wakeup();
73
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 */
82 static 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\n");
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\n");
103 cfg->irq_bt = -1;
104 } else {
105 ret = devm_request_irq(dev, cfg->irq_bt,
106 btmrvl_wake_irq_bt,
107 0, "bt_wake", card);
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
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 */
134 static u8 user_rmmod;
135 static u8 sdio_ireg;
136
137 static 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,
151 .int_read_to_clear = false,
152 };
153 static const struct btmrvl_sdio_card_reg btmrvl_reg_87xx = {
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,
168 .int_read_to_clear = false,
169 };
170
171 static 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
191 static const struct btmrvl_sdio_card_reg btmrvl_reg_8897 = {
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,
206 .int_read_to_clear = true,
207 .host_int_rsr = 0x01,
208 .card_misc_cfg = 0xcc,
209 .fw_dump_ctrl = 0xe2,
210 .fw_dump_start = 0xe3,
211 .fw_dump_end = 0xea,
212 };
213
214 static 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
237 static const struct btmrvl_sdio_device btmrvl_sdio_sd8688 = {
238 .helper = "mrvl/sd8688_helper.bin",
239 .firmware = "mrvl/sd8688.bin",
240 .reg = &btmrvl_reg_8688,
241 .support_pscan_win_report = false,
242 .sd_blksz_fw_dl = 64,
243 .supports_fw_dump = false,
244 };
245
246 static const struct btmrvl_sdio_device btmrvl_sdio_sd8787 = {
247 .helper = NULL,
248 .firmware = "mrvl/sd8787_uapsta.bin",
249 .reg = &btmrvl_reg_87xx,
250 .support_pscan_win_report = false,
251 .sd_blksz_fw_dl = 256,
252 .supports_fw_dump = false,
253 };
254
255 static const struct btmrvl_sdio_device btmrvl_sdio_sd8797 = {
256 .helper = NULL,
257 .firmware = "mrvl/sd8797_uapsta.bin",
258 .reg = &btmrvl_reg_87xx,
259 .support_pscan_win_report = false,
260 .sd_blksz_fw_dl = 256,
261 .supports_fw_dump = false,
262 };
263
264 static 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,
270 .supports_fw_dump = false,
271 };
272
273 static const struct btmrvl_sdio_device btmrvl_sdio_sd8897 = {
274 .helper = NULL,
275 .firmware = "mrvl/sd8897_uapsta.bin",
276 .reg = &btmrvl_reg_8897,
277 .support_pscan_win_report = true,
278 .sd_blksz_fw_dl = 256,
279 .supports_fw_dump = true,
280 };
281
282 static 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
291 static const struct sdio_device_id btmrvl_sdio_ids[] = {
292 /* Marvell SD8688 Bluetooth device */
293 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x9105),
294 .driver_data = (unsigned long)&btmrvl_sdio_sd8688 },
295 /* Marvell SD8787 Bluetooth device */
296 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x911A),
297 .driver_data = (unsigned long)&btmrvl_sdio_sd8787 },
298 /* Marvell SD8787 Bluetooth AMP device */
299 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x911B),
300 .driver_data = (unsigned long)&btmrvl_sdio_sd8787 },
301 /* Marvell SD8797 Bluetooth device */
302 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x912A),
303 .driver_data = (unsigned long)&btmrvl_sdio_sd8797 },
304 /* Marvell SD8887 Bluetooth device */
305 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x9136),
306 .driver_data = (unsigned long)&btmrvl_sdio_sd8887 },
307 /* Marvell SD8897 Bluetooth device */
308 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x912E),
309 .driver_data = (unsigned long)&btmrvl_sdio_sd8897 },
310 /* Marvell SD8997 Bluetooth device */
311 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x9142),
312 .driver_data = (unsigned long)&btmrvl_sdio_sd8997 },
313
314 { } /* Terminating entry */
315 };
316
317 MODULE_DEVICE_TABLE(sdio, btmrvl_sdio_ids);
318
319 static int btmrvl_sdio_get_rx_unit(struct btmrvl_sdio_card *card)
320 {
321 u8 reg;
322 int ret;
323
324 reg = sdio_readb(card->func, card->reg->card_rx_unit, &ret);
325 if (!ret)
326 card->rx_unit = reg;
327
328 return ret;
329 }
330
331 static int btmrvl_sdio_read_fw_status(struct btmrvl_sdio_card *card, u16 *dat)
332 {
333 u8 fws0, fws1;
334 int ret;
335
336 *dat = 0;
337
338 fws0 = sdio_readb(card->func, card->reg->card_fw_status0, &ret);
339 if (ret)
340 return -EIO;
341
342 fws1 = sdio_readb(card->func, card->reg->card_fw_status1, &ret);
343 if (ret)
344 return -EIO;
345
346 *dat = (((u16) fws1) << 8) | fws0;
347
348 return 0;
349 }
350
351 static int btmrvl_sdio_read_rx_len(struct btmrvl_sdio_card *card, u16 *dat)
352 {
353 u8 reg;
354 int ret;
355
356 reg = sdio_readb(card->func, card->reg->card_rx_len, &ret);
357 if (!ret)
358 *dat = (u16) reg << card->rx_unit;
359
360 return ret;
361 }
362
363 static int btmrvl_sdio_enable_host_int_mask(struct btmrvl_sdio_card *card,
364 u8 mask)
365 {
366 int ret;
367
368 sdio_writeb(card->func, mask, card->reg->host_int_mask, &ret);
369 if (ret) {
370 BT_ERR("Unable to enable the host interrupt!");
371 ret = -EIO;
372 }
373
374 return ret;
375 }
376
377 static int btmrvl_sdio_disable_host_int_mask(struct btmrvl_sdio_card *card,
378 u8 mask)
379 {
380 u8 host_int_mask;
381 int ret;
382
383 host_int_mask = sdio_readb(card->func, card->reg->host_int_mask, &ret);
384 if (ret)
385 return -EIO;
386
387 host_int_mask &= ~mask;
388
389 sdio_writeb(card->func, host_int_mask, card->reg->host_int_mask, &ret);
390 if (ret < 0) {
391 BT_ERR("Unable to disable the host interrupt!");
392 return -EIO;
393 }
394
395 return 0;
396 }
397
398 static int btmrvl_sdio_poll_card_status(struct btmrvl_sdio_card *card, u8 bits)
399 {
400 unsigned int tries;
401 u8 status;
402 int ret;
403
404 for (tries = 0; tries < MAX_POLL_TRIES * 1000; tries++) {
405 status = sdio_readb(card->func, card->reg->card_status, &ret);
406 if (ret)
407 goto failed;
408 if ((status & bits) == bits)
409 return ret;
410
411 udelay(1);
412 }
413
414 ret = -ETIMEDOUT;
415
416 failed:
417 BT_ERR("FAILED! ret=%d", ret);
418
419 return ret;
420 }
421
422 static int btmrvl_sdio_verify_fw_download(struct btmrvl_sdio_card *card,
423 int pollnum)
424 {
425 u16 firmwarestat;
426 int tries, ret;
427
428 /* Wait for firmware to become ready */
429 for (tries = 0; tries < pollnum; tries++) {
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)
434 continue;
435
436 if (firmwarestat == FIRMWARE_READY)
437 return 0;
438
439 msleep(100);
440 }
441
442 return -ETIMEDOUT;
443 }
444
445 static 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
455 ret = request_firmware(&fw_helper, card->helper,
456 &card->func->dev);
457 if ((ret < 0) || !fw_helper) {
458 BT_ERR("request_firmware(helper) failed, error code = %d",
459 ret);
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",
468 helperlen, SDIO_BLOCK_SIZE);
469
470 tmphlprbufsz = ALIGN_SZ(BTM_UPLD_SIZE, BTSDIO_DMA_ALIGN);
471
472 tmphlprbuf = kzalloc(tmphlprbufsz, GFP_KERNEL);
473 if (!tmphlprbuf) {
474 BT_ERR("Unable to allocate buffer for helper."
475 " Terminating download");
476 ret = -ENOMEM;
477 goto done;
478 }
479
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 */
513 ret = sdio_writesb(card->func, card->ioport, helperbuf,
514 FIRMWARE_TRANSFER_NBLOCK * SDIO_BLOCK_SIZE);
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,
529 SDIO_BLOCK_SIZE);
530 if (ret < 0) {
531 BT_ERR("IO error in writing helper image EOF block");
532 goto done;
533 }
534
535 ret = 0;
536
537 done:
538 kfree(tmphlprbuf);
539 release_firmware(fw_helper);
540 return ret;
541 }
542
543 static 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;
552 u16 len, blksz_dl = card->sd_blksz_fw_dl;
553 int txlen = 0, tx_blocks = 0, count = 0;
554
555 ret = request_firmware(&fw_firmware, card->firmware,
556 &card->func->dev);
557 if ((ret < 0) || !fw_firmware) {
558 BT_ERR("request_firmware(firmware) failed, error code = %d",
559 ret);
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);
570 tmpfwbuf = kzalloc(tmpfwbufsz, GFP_KERNEL);
571 if (!tmpfwbuf) {
572 BT_ERR("Unable to allocate buffer for firmware."
573 " Terminating download");
574 ret = -ENOMEM;
575 goto done;
576 }
577
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,
585 CARD_IO_READY | DN_LD_CARD_RDY);
586 if (ret < 0) {
587 BT_ERR("FW download with helper poll status"
588 " timeout @ %d", offset);
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,
598 card->reg->sq_read_base_addr_a0, &ret);
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,
608 card->reg->sq_read_base_addr_a1, &ret);
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",
629 offset, len);
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
656 tx_blocks = DIV_ROUND_UP(txlen, blksz_dl);
657
658 memcpy(fwbuf, &firmware[offset], txlen);
659 }
660
661 ret = sdio_writesb(card->func, card->ioport, fwbuf,
662 tx_blocks * blksz_dl);
663
664 if (ret < 0) {
665 BT_ERR("FW download, writesb(%d) failed @%d",
666 count, offset);
667 sdio_writeb(card->func, HOST_CMD53_FIN,
668 card->reg->cfg, &ret);
669 if (ret)
670 BT_ERR("writeb failed (CFG)");
671 }
672
673 offset += txlen;
674 } while (true);
675
676 BT_INFO("FW download over, size %d bytes", offset);
677
678 ret = 0;
679
680 done:
681 kfree(tmpfwbuf);
682 release_firmware(fw_firmware);
683 return ret;
684 }
685
686 static int btmrvl_sdio_card_to_host(struct btmrvl_private *priv)
687 {
688 u16 buf_len = 0;
689 int ret, num_blocks, blksz;
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
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;
711 num_blocks = DIV_ROUND_UP(buf_len, blksz);
712
713 if (buf_len <= SDIO_HEADER_LEN
714 || (num_blocks * blksz) > ALLOC_BUF_SIZE) {
715 BT_ERR("invalid packet length: %d", buf_len);
716 ret = -EINVAL;
717 goto exit;
718 }
719
720 /* Allocate buffer */
721 skb = bt_skb_alloc(num_blocks * blksz + BTSDIO_DMA_ALIGN, GFP_ATOMIC);
722 if (!skb) {
723 BT_ERR("No free skb");
724 ret = -ENOMEM;
725 goto exit;
726 }
727
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));
733 }
734
735 payload = skb->data;
736
737 ret = sdio_readsb(card->func, payload, card->ioport,
738 num_blocks * blksz);
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];
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
760 type = payload[3];
761
762 switch (type) {
763 case HCI_ACLDATA_PKT:
764 case HCI_SCODATA_PKT:
765 case HCI_EVENT_PKT:
766 hci_skb_pkt_type(skb) = type;
767 skb_put(skb, buf_len);
768 skb_pull(skb, SDIO_HEADER_LEN);
769
770 if (type == HCI_EVENT_PKT) {
771 if (btmrvl_check_evtpkt(priv, skb))
772 hci_recv_frame(hdev, skb);
773 } else {
774 hci_recv_frame(hdev, skb);
775 }
776
777 hdev->stat.byte_rx += buf_len;
778 break;
779
780 case MRVL_VENDOR_PKT:
781 hci_skb_pkt_type(skb) = HCI_VENDOR_PKT;
782 skb_put(skb, buf_len);
783 skb_pull(skb, SDIO_HEADER_LEN);
784
785 if (btmrvl_process_event(priv, skb))
786 hci_recv_frame(hdev, skb);
787
788 hdev->stat.byte_rx += buf_len;
789 break;
790
791 default:
792 BT_ERR("Unknown packet type:%d", type);
793 BT_ERR("hex: %*ph", blksz * num_blocks, payload);
794
795 kfree_skb(skb);
796 skb = NULL;
797 break;
798 }
799
800 exit:
801 if (ret) {
802 hdev->stat.err_rx++;
803 kfree_skb(skb);
804 }
805
806 return ret;
807 }
808
809 static int btmrvl_sdio_process_int_status(struct btmrvl_private *priv)
810 {
811 ulong flags;
812 u8 ireg;
813 struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
814
815 spin_lock_irqsave(&priv->driver_lock, flags);
816 ireg = sdio_ireg;
817 sdio_ireg = 0;
818 spin_unlock_irqrestore(&priv->driver_lock, flags);
819
820 sdio_claim_host(card->func);
821 if (ireg & DN_LD_HOST_INT_STATUS) {
822 if (priv->btmrvl_dev.tx_dnld_rdy)
823 BT_DBG("tx_done already received: "
824 " int_status=0x%x", ireg);
825 else
826 priv->btmrvl_dev.tx_dnld_rdy = true;
827 }
828
829 if (ireg & UP_LD_HOST_INT_STATUS)
830 btmrvl_sdio_card_to_host(priv);
831
832 sdio_release_host(card->func);
833
834 return 0;
835 }
836
837 static 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
854 static 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
884 static void btmrvl_sdio_interrupt(struct sdio_func *func)
885 {
886 struct btmrvl_private *priv;
887 struct btmrvl_sdio_card *card;
888 ulong flags;
889 u8 ireg = 0;
890 int ret;
891
892 card = sdio_get_drvdata(func);
893 if (!card || !card->priv) {
894 BT_ERR("sbi_interrupt(%p) card or priv is NULL, card=%p",
895 func, card);
896 return;
897 }
898
899 priv = card->priv;
900
901 if (priv->surprise_removed)
902 return;
903
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
909 if (ret)
910 return;
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);
917 }
918
919 static int btmrvl_sdio_register_dev(struct btmrvl_sdio_card *card)
920 {
921 struct sdio_func *func;
922 u8 reg;
923 int ret = 0;
924
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
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
956 reg = sdio_readb(func, card->reg->io_port_0, &ret);
957 if (ret < 0) {
958 ret = -EIO;
959 goto release_irq;
960 }
961
962 card->ioport = reg;
963
964 reg = sdio_readb(func, card->reg->io_port_1, &ret);
965 if (ret < 0) {
966 ret = -EIO;
967 goto release_irq;
968 }
969
970 card->ioport |= (reg << 8);
971
972 reg = sdio_readb(func, card->reg->io_port_2, &ret);
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
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
1006 sdio_set_drvdata(func, card);
1007
1008 sdio_release_host(func);
1009
1010 return 0;
1011
1012 release_irq:
1013 sdio_release_irq(func);
1014
1015 disable_func:
1016 sdio_disable_func(func);
1017
1018 release_host:
1019 sdio_release_host(func);
1020
1021 failed:
1022 return ret;
1023 }
1024
1025 static int btmrvl_sdio_unregister_dev(struct btmrvl_sdio_card *card)
1026 {
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
1035 return 0;
1036 }
1037
1038 static int btmrvl_sdio_enable_host_int(struct btmrvl_sdio_card *card)
1039 {
1040 int ret;
1041
1042 if (!card || !card->func)
1043 return -EINVAL;
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
1053 return ret;
1054 }
1055
1056 static int btmrvl_sdio_disable_host_int(struct btmrvl_sdio_card *card)
1057 {
1058 int ret;
1059
1060 if (!card || !card->func)
1061 return -EINVAL;
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
1069 return ret;
1070 }
1071
1072 static 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;
1077 int blksz;
1078 int i = 0;
1079 u8 *buf = NULL;
1080 void *tmpbuf = NULL;
1081 int tmpbufsz;
1082
1083 if (!card || !card->func) {
1084 BT_ERR("card or function is NULL!");
1085 return -EINVAL;
1086 }
1087
1088 blksz = DIV_ROUND_UP(nb, SDIO_BLOCK_SIZE) * SDIO_BLOCK_SIZE;
1089
1090 buf = payload;
1091 if ((unsigned long) payload & (BTSDIO_DMA_ALIGN - 1) ||
1092 nb < blksz) {
1093 tmpbufsz = ALIGN_SZ(blksz, BTSDIO_DMA_ALIGN) +
1094 BTSDIO_DMA_ALIGN;
1095 tmpbuf = kzalloc(tmpbufsz, GFP_KERNEL);
1096 if (!tmpbuf)
1097 return -ENOMEM;
1098 buf = (u8 *) ALIGN_ADDR(tmpbuf, BTSDIO_DMA_ALIGN);
1099 memcpy(buf, payload, nb);
1100 }
1101
1102 sdio_claim_host(card->func);
1103
1104 do {
1105 /* Transfer data to card */
1106 ret = sdio_writesb(card->func, card->ioport, buf,
1107 blksz);
1108 if (ret < 0) {
1109 i++;
1110 BT_ERR("i=%d writesb failed: %d", i, ret);
1111 BT_ERR("hex: %*ph", nb, payload);
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
1120 exit:
1121 sdio_release_host(card->func);
1122 kfree(tmpbuf);
1123
1124 return ret;
1125 }
1126
1127 static int btmrvl_sdio_download_fw(struct btmrvl_sdio_card *card)
1128 {
1129 int ret;
1130 u8 fws0;
1131 int pollnum = MAX_POLL_TRIES;
1132
1133 if (!card || !card->func) {
1134 BT_ERR("card or function is NULL!");
1135 return -EINVAL;
1136 }
1137
1138 if (!btmrvl_sdio_verify_fw_download(card, 1)) {
1139 BT_DBG("Firmware already downloaded!");
1140 return 0;
1141 }
1142
1143 sdio_claim_host(card->func);
1144
1145 /* Check if other function driver is downloading the firmware */
1146 fws0 = sdio_readb(card->func, card->reg->card_fw_status0, &ret);
1147 if (ret) {
1148 BT_ERR("Failed to read FW downloading status!");
1149 ret = -EIO;
1150 goto done;
1151 }
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 }
1166
1167 if (btmrvl_sdio_download_fw_w_helper(card)) {
1168 BT_ERR("Failed to download firmware!");
1169 ret = -EIO;
1170 goto done;
1171 }
1172 }
1173
1174 /*
1175 * winner or not, with this test the FW synchronizes when the
1176 * module can continue its initialization
1177 */
1178 if (btmrvl_sdio_verify_fw_download(card, pollnum)) {
1179 BT_ERR("FW failed to be active in time!");
1180 ret = -ETIMEDOUT;
1181 goto done;
1182 }
1183
1184 sdio_release_host(card->func);
1185
1186 return 0;
1187
1188 done:
1189 sdio_release_host(card->func);
1190 return ret;
1191 }
1192
1193 static 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
1198 if (!card || !card->func) {
1199 BT_ERR("card or function is NULL!");
1200 return -EINVAL;
1201 }
1202
1203 sdio_claim_host(card->func);
1204
1205 sdio_writeb(card->func, HOST_POWER_UP, card->reg->cfg, &ret);
1206
1207 sdio_release_host(card->func);
1208
1209 BT_DBG("wake up firmware");
1210
1211 return ret;
1212 }
1213
1214 static 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 */
1264 static enum
1265 rdwr_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 */
1314 static 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;
1321 u8 dump_num = 0, idx, i, read_reg, doneflag = 0;
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!");
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 }
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
1444 done:
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 */
1460 BT_INFO("== btmrvl firmware dump to /sys/class/devcoredump start");
1461 for (idx = 0; idx < dump_num; idx++) {
1462 struct memory_type_mapping *entry = &mem_type_mapping_tbl[idx];
1463
1464 if (entry->mem_ptr) {
1465 strcpy(fw_dump_ptr, "========Start dump ");
1466 fw_dump_ptr += strlen("========Start dump ");
1467
1468 strcpy(fw_dump_ptr, entry->mem_name);
1469 fw_dump_ptr += strlen(entry->mem_name);
1470
1471 strcpy(fw_dump_ptr, "========\n");
1472 fw_dump_ptr += strlen("========\n");
1473
1474 memcpy(fw_dump_ptr, entry->mem_ptr, entry->mem_size);
1475 fw_dump_ptr += entry->mem_size;
1476
1477 strcpy(fw_dump_ptr, "\n========End dump========\n");
1478 fw_dump_ptr += strlen("\n========End dump========\n");
1479
1480 vfree(mem_type_mapping_tbl[idx].mem_ptr);
1481 mem_type_mapping_tbl[idx].mem_ptr = NULL;
1482 }
1483 }
1484
1485 /* fw_dump_data will be free in device coredump release function
1486 * after 5 min
1487 */
1488 dev_coredumpv(&card->func->dev, fw_dump_data, fw_dump_len, GFP_KERNEL);
1489 BT_INFO("== btmrvl firmware dump to /sys/class/devcoredump end");
1490 }
1491
1492 static int btmrvl_sdio_probe(struct sdio_func *func,
1493 const struct sdio_device_id *id)
1494 {
1495 int ret = 0;
1496 struct btmrvl_private *priv = NULL;
1497 struct btmrvl_sdio_card *card = NULL;
1498
1499 BT_INFO("vendor=0x%x, device=0x%x, class=%d, fn=%d",
1500 id->vendor, id->device, id->class, func->num);
1501
1502 card = devm_kzalloc(&func->dev, sizeof(*card), GFP_KERNEL);
1503 if (!card)
1504 return -ENOMEM;
1505
1506 card->func = func;
1507
1508 if (id->driver_data) {
1509 struct btmrvl_sdio_device *data = (void *) id->driver_data;
1510 card->helper = data->helper;
1511 card->firmware = data->firmware;
1512 card->reg = data->reg;
1513 card->sd_blksz_fw_dl = data->sd_blksz_fw_dl;
1514 card->support_pscan_win_report = data->support_pscan_win_report;
1515 card->supports_fw_dump = data->supports_fw_dump;
1516 }
1517
1518 if (btmrvl_sdio_register_dev(card) < 0) {
1519 BT_ERR("Failed to register BT device!");
1520 return -ENODEV;
1521 }
1522
1523 /* Disable the interrupts on the card */
1524 btmrvl_sdio_disable_host_int(card);
1525
1526 if (btmrvl_sdio_download_fw(card)) {
1527 BT_ERR("Downloading firmware failed!");
1528 ret = -ENODEV;
1529 goto unreg_dev;
1530 }
1531
1532 btmrvl_sdio_enable_host_int(card);
1533
1534 /* Device tree node parsing and platform specific configuration*/
1535 btmrvl_sdio_probe_of(&func->dev, card);
1536
1537 priv = btmrvl_add_card(card);
1538 if (!priv) {
1539 BT_ERR("Initializing card failed!");
1540 ret = -ENODEV;
1541 goto disable_host_int;
1542 }
1543
1544 card->priv = priv;
1545
1546 /* Initialize the interface specific function pointers */
1547 priv->hw_host_to_card = btmrvl_sdio_host_to_card;
1548 priv->hw_wakeup_firmware = btmrvl_sdio_wakeup_fw;
1549 priv->hw_process_int_status = btmrvl_sdio_process_int_status;
1550 priv->firmware_dump = btmrvl_sdio_dump_firmware;
1551
1552 if (btmrvl_register_hdev(priv)) {
1553 BT_ERR("Register hdev failed!");
1554 ret = -ENODEV;
1555 goto disable_host_int;
1556 }
1557
1558 return 0;
1559
1560 disable_host_int:
1561 btmrvl_sdio_disable_host_int(card);
1562 unreg_dev:
1563 btmrvl_sdio_unregister_dev(card);
1564 return ret;
1565 }
1566
1567 static void btmrvl_sdio_remove(struct sdio_func *func)
1568 {
1569 struct btmrvl_sdio_card *card;
1570
1571 if (func) {
1572 card = sdio_get_drvdata(func);
1573 if (card) {
1574 /* Send SHUTDOWN command & disable interrupt
1575 * if user removes the module.
1576 */
1577 if (user_rmmod) {
1578 btmrvl_send_module_cfg_cmd(card->priv,
1579 MODULE_SHUTDOWN_REQ);
1580 btmrvl_sdio_disable_host_int(card);
1581 }
1582 BT_DBG("unregister dev");
1583 card->priv->surprise_removed = true;
1584 btmrvl_sdio_unregister_dev(card);
1585 btmrvl_remove_card(card->priv);
1586 }
1587 }
1588 }
1589
1590 static int btmrvl_sdio_suspend(struct device *dev)
1591 {
1592 struct sdio_func *func = dev_to_sdio_func(dev);
1593 struct btmrvl_sdio_card *card;
1594 struct btmrvl_private *priv;
1595 mmc_pm_flag_t pm_flags;
1596 struct hci_dev *hcidev;
1597
1598 if (func) {
1599 pm_flags = sdio_get_host_pm_caps(func);
1600 BT_DBG("%s: suspend: PM flags = 0x%x", sdio_func_id(func),
1601 pm_flags);
1602 if (!(pm_flags & MMC_PM_KEEP_POWER)) {
1603 BT_ERR("%s: cannot remain alive while suspended",
1604 sdio_func_id(func));
1605 return -ENOSYS;
1606 }
1607 card = sdio_get_drvdata(func);
1608 if (!card || !card->priv) {
1609 BT_ERR("card or priv structure is not valid");
1610 return 0;
1611 }
1612 } else {
1613 BT_ERR("sdio_func is not specified");
1614 return 0;
1615 }
1616
1617 /* Enable platform specific wakeup interrupt */
1618 if (card->plt_wake_cfg && card->plt_wake_cfg->irq_bt >= 0) {
1619 card->plt_wake_cfg->wake_by_bt = false;
1620 enable_irq(card->plt_wake_cfg->irq_bt);
1621 enable_irq_wake(card->plt_wake_cfg->irq_bt);
1622 }
1623
1624 priv = card->priv;
1625 priv->adapter->is_suspending = true;
1626 hcidev = priv->btmrvl_dev.hcidev;
1627 BT_DBG("%s: SDIO suspend", hcidev->name);
1628 hci_suspend_dev(hcidev);
1629
1630 if (priv->adapter->hs_state != HS_ACTIVATED) {
1631 if (btmrvl_enable_hs(priv)) {
1632 BT_ERR("HS not activated, suspend failed!");
1633 /* Disable platform specific wakeup interrupt */
1634 if (card->plt_wake_cfg &&
1635 card->plt_wake_cfg->irq_bt >= 0) {
1636 disable_irq_wake(card->plt_wake_cfg->irq_bt);
1637 disable_irq(card->plt_wake_cfg->irq_bt);
1638 }
1639
1640 priv->adapter->is_suspending = false;
1641 return -EBUSY;
1642 }
1643 }
1644
1645 priv->adapter->is_suspending = false;
1646 priv->adapter->is_suspended = true;
1647
1648 /* We will keep the power when hs enabled successfully */
1649 if (priv->adapter->hs_state == HS_ACTIVATED) {
1650 BT_DBG("suspend with MMC_PM_KEEP_POWER");
1651 return sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER);
1652 }
1653
1654 BT_DBG("suspend without MMC_PM_KEEP_POWER");
1655 return 0;
1656 }
1657
1658 static int btmrvl_sdio_resume(struct device *dev)
1659 {
1660 struct sdio_func *func = dev_to_sdio_func(dev);
1661 struct btmrvl_sdio_card *card;
1662 struct btmrvl_private *priv;
1663 mmc_pm_flag_t pm_flags;
1664 struct hci_dev *hcidev;
1665
1666 if (func) {
1667 pm_flags = sdio_get_host_pm_caps(func);
1668 BT_DBG("%s: resume: PM flags = 0x%x", sdio_func_id(func),
1669 pm_flags);
1670 card = sdio_get_drvdata(func);
1671 if (!card || !card->priv) {
1672 BT_ERR("card or priv structure is not valid");
1673 return 0;
1674 }
1675 } else {
1676 BT_ERR("sdio_func is not specified");
1677 return 0;
1678 }
1679 priv = card->priv;
1680
1681 if (!priv->adapter->is_suspended) {
1682 BT_DBG("device already resumed");
1683 return 0;
1684 }
1685
1686 priv->hw_wakeup_firmware(priv);
1687 priv->adapter->hs_state = HS_DEACTIVATED;
1688 hcidev = priv->btmrvl_dev.hcidev;
1689 BT_DBG("%s: HS DEACTIVATED in resume!", hcidev->name);
1690 priv->adapter->is_suspended = false;
1691 BT_DBG("%s: SDIO resume", hcidev->name);
1692 hci_resume_dev(hcidev);
1693
1694 /* Disable platform specific wakeup interrupt */
1695 if (card->plt_wake_cfg && card->plt_wake_cfg->irq_bt >= 0) {
1696 disable_irq_wake(card->plt_wake_cfg->irq_bt);
1697 disable_irq(card->plt_wake_cfg->irq_bt);
1698 if (card->plt_wake_cfg->wake_by_bt)
1699 /* Undo our disable, since interrupt handler already
1700 * did this.
1701 */
1702 enable_irq(card->plt_wake_cfg->irq_bt);
1703 }
1704
1705 return 0;
1706 }
1707
1708 static const struct dev_pm_ops btmrvl_sdio_pm_ops = {
1709 .suspend = btmrvl_sdio_suspend,
1710 .resume = btmrvl_sdio_resume,
1711 };
1712
1713 static struct sdio_driver bt_mrvl_sdio = {
1714 .name = "btmrvl_sdio",
1715 .id_table = btmrvl_sdio_ids,
1716 .probe = btmrvl_sdio_probe,
1717 .remove = btmrvl_sdio_remove,
1718 .drv = {
1719 .owner = THIS_MODULE,
1720 .pm = &btmrvl_sdio_pm_ops,
1721 }
1722 };
1723
1724 static int __init btmrvl_sdio_init_module(void)
1725 {
1726 if (sdio_register_driver(&bt_mrvl_sdio) != 0) {
1727 BT_ERR("SDIO Driver Registration Failed");
1728 return -ENODEV;
1729 }
1730
1731 /* Clear the flag in case user removes the card. */
1732 user_rmmod = 0;
1733
1734 return 0;
1735 }
1736
1737 static void __exit btmrvl_sdio_exit_module(void)
1738 {
1739 /* Set the flag as user is removing this module. */
1740 user_rmmod = 1;
1741
1742 sdio_unregister_driver(&bt_mrvl_sdio);
1743 }
1744
1745 module_init(btmrvl_sdio_init_module);
1746 module_exit(btmrvl_sdio_exit_module);
1747
1748 MODULE_AUTHOR("Marvell International Ltd.");
1749 MODULE_DESCRIPTION("Marvell BT-over-SDIO driver ver " VERSION);
1750 MODULE_VERSION(VERSION);
1751 MODULE_LICENSE("GPL v2");
1752 MODULE_FIRMWARE("mrvl/sd8688_helper.bin");
1753 MODULE_FIRMWARE("mrvl/sd8688.bin");
1754 MODULE_FIRMWARE("mrvl/sd8787_uapsta.bin");
1755 MODULE_FIRMWARE("mrvl/sd8797_uapsta.bin");
1756 MODULE_FIRMWARE("mrvl/sd8887_uapsta.bin");
1757 MODULE_FIRMWARE("mrvl/sd8897_uapsta.bin");
1758 MODULE_FIRMWARE("mrvl/sd8997_uapsta.bin");
CRIS linux kernel tree