Loading...
1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Marvell BT-over-SDIO driver: SDIO interface related functions.
4 *
5 * Copyright (C) 2009, Marvell International Ltd.
6 **/
7
8#include <linux/firmware.h>
9#include <linux/slab.h>
10#include <linux/suspend.h>
11
12#include <linux/mmc/sdio_ids.h>
13#include <linux/mmc/sdio_func.h>
14#include <linux/module.h>
15#include <linux/devcoredump.h>
16
17#include <net/bluetooth/bluetooth.h>
18#include <net/bluetooth/hci_core.h>
19
20#include "btmrvl_drv.h"
21#include "btmrvl_sdio.h"
22
23#define VERSION "1.0"
24
25static struct memory_type_mapping mem_type_mapping_tbl[] = {
26 {"ITCM", NULL, 0, 0xF0},
27 {"DTCM", NULL, 0, 0xF1},
28 {"SQRAM", NULL, 0, 0xF2},
29 {"APU", NULL, 0, 0xF3},
30 {"CIU", NULL, 0, 0xF4},
31 {"ICU", NULL, 0, 0xF5},
32 {"MAC", NULL, 0, 0xF6},
33 {"EXT7", NULL, 0, 0xF7},
34 {"EXT8", NULL, 0, 0xF8},
35 {"EXT9", NULL, 0, 0xF9},
36 {"EXT10", NULL, 0, 0xFA},
37 {"EXT11", NULL, 0, 0xFB},
38 {"EXT12", NULL, 0, 0xFC},
39 {"EXT13", NULL, 0, 0xFD},
40 {"EXTLAST", NULL, 0, 0xFE},
41};
42
43static const struct of_device_id btmrvl_sdio_of_match_table[] __maybe_unused = {
44 { .compatible = "marvell,sd8897-bt" },
45 { .compatible = "marvell,sd8997-bt" },
46 { }
47};
48
49static irqreturn_t btmrvl_wake_irq_bt(int irq, void *priv)
50{
51 struct btmrvl_sdio_card *card = priv;
52 struct device *dev = &card->func->dev;
53 struct btmrvl_plt_wake_cfg *cfg = card->plt_wake_cfg;
54
55 dev_info(dev, "wake by bt\n");
56 cfg->wake_by_bt = true;
57 disable_irq_nosync(irq);
58
59 pm_wakeup_event(dev, 0);
60 pm_system_wakeup();
61
62 return IRQ_HANDLED;
63}
64
65/* This function parses device tree node using mmc subnode devicetree API.
66 * The device node is saved in card->plt_of_node.
67 * If the device tree node exists and includes interrupts attributes, this
68 * function will request platform specific wakeup interrupt.
69 */
70static int btmrvl_sdio_probe_of(struct device *dev,
71 struct btmrvl_sdio_card *card)
72{
73 struct btmrvl_plt_wake_cfg *cfg;
74 int ret;
75
76 if (!dev->of_node ||
77 !of_match_node(btmrvl_sdio_of_match_table, dev->of_node)) {
78 dev_info(dev, "sdio device tree data not available\n");
79 return -1;
80 }
81
82 card->plt_of_node = dev->of_node;
83
84 card->plt_wake_cfg = devm_kzalloc(dev, sizeof(*card->plt_wake_cfg),
85 GFP_KERNEL);
86 cfg = card->plt_wake_cfg;
87 if (cfg && card->plt_of_node) {
88 cfg->irq_bt = irq_of_parse_and_map(card->plt_of_node, 0);
89 if (!cfg->irq_bt) {
90 dev_err(dev, "fail to parse irq_bt from device tree\n");
91 cfg->irq_bt = -1;
92 } else {
93 ret = devm_request_irq(dev, cfg->irq_bt,
94 btmrvl_wake_irq_bt,
95 IRQF_NO_AUTOEN, "bt_wake", card);
96 if (ret) {
97 dev_err(dev,
98 "Failed to request irq_bt %d (%d)\n",
99 cfg->irq_bt, ret);
100 }
101
102 /* Configure wakeup (enabled by default) */
103 device_init_wakeup(dev, true);
104 }
105 }
106
107 return 0;
108}
109
110/* The btmrvl_sdio_remove() callback function is called
111 * when user removes this module from kernel space or ejects
112 * the card from the slot. The driver handles these 2 cases
113 * differently.
114 * If the user is removing the module, a MODULE_SHUTDOWN_REQ
115 * command is sent to firmware and interrupt will be disabled.
116 * If the card is removed, there is no need to send command
117 * or disable interrupt.
118 *
119 * The variable 'user_rmmod' is used to distinguish these two
120 * scenarios. This flag is initialized as FALSE in case the card
121 * is removed, and will be set to TRUE for module removal when
122 * module_exit function is called.
123 */
124static u8 user_rmmod;
125static u8 sdio_ireg;
126
127static const struct btmrvl_sdio_card_reg btmrvl_reg_8688 = {
128 .cfg = 0x03,
129 .host_int_mask = 0x04,
130 .host_intstatus = 0x05,
131 .card_status = 0x20,
132 .sq_read_base_addr_a0 = 0x10,
133 .sq_read_base_addr_a1 = 0x11,
134 .card_fw_status0 = 0x40,
135 .card_fw_status1 = 0x41,
136 .card_rx_len = 0x42,
137 .card_rx_unit = 0x43,
138 .io_port_0 = 0x00,
139 .io_port_1 = 0x01,
140 .io_port_2 = 0x02,
141 .int_read_to_clear = false,
142};
143static const struct btmrvl_sdio_card_reg btmrvl_reg_87xx = {
144 .cfg = 0x00,
145 .host_int_mask = 0x02,
146 .host_intstatus = 0x03,
147 .card_status = 0x30,
148 .sq_read_base_addr_a0 = 0x40,
149 .sq_read_base_addr_a1 = 0x41,
150 .card_revision = 0x5c,
151 .card_fw_status0 = 0x60,
152 .card_fw_status1 = 0x61,
153 .card_rx_len = 0x62,
154 .card_rx_unit = 0x63,
155 .io_port_0 = 0x78,
156 .io_port_1 = 0x79,
157 .io_port_2 = 0x7a,
158 .int_read_to_clear = false,
159};
160
161static const struct btmrvl_sdio_card_reg btmrvl_reg_8887 = {
162 .cfg = 0x00,
163 .host_int_mask = 0x08,
164 .host_intstatus = 0x0C,
165 .card_status = 0x5C,
166 .sq_read_base_addr_a0 = 0x6C,
167 .sq_read_base_addr_a1 = 0x6D,
168 .card_revision = 0xC8,
169 .card_fw_status0 = 0x88,
170 .card_fw_status1 = 0x89,
171 .card_rx_len = 0x8A,
172 .card_rx_unit = 0x8B,
173 .io_port_0 = 0xE4,
174 .io_port_1 = 0xE5,
175 .io_port_2 = 0xE6,
176 .int_read_to_clear = true,
177 .host_int_rsr = 0x04,
178 .card_misc_cfg = 0xD8,
179};
180
181static const struct btmrvl_sdio_card_reg btmrvl_reg_8897 = {
182 .cfg = 0x00,
183 .host_int_mask = 0x02,
184 .host_intstatus = 0x03,
185 .card_status = 0x50,
186 .sq_read_base_addr_a0 = 0x60,
187 .sq_read_base_addr_a1 = 0x61,
188 .card_revision = 0xbc,
189 .card_fw_status0 = 0xc0,
190 .card_fw_status1 = 0xc1,
191 .card_rx_len = 0xc2,
192 .card_rx_unit = 0xc3,
193 .io_port_0 = 0xd8,
194 .io_port_1 = 0xd9,
195 .io_port_2 = 0xda,
196 .int_read_to_clear = true,
197 .host_int_rsr = 0x01,
198 .card_misc_cfg = 0xcc,
199 .fw_dump_ctrl = 0xe2,
200 .fw_dump_start = 0xe3,
201 .fw_dump_end = 0xea,
202};
203
204static const struct btmrvl_sdio_card_reg btmrvl_reg_89xx = {
205 .cfg = 0x00,
206 .host_int_mask = 0x08,
207 .host_intstatus = 0x0c,
208 .card_status = 0x5c,
209 .sq_read_base_addr_a0 = 0xf8,
210 .sq_read_base_addr_a1 = 0xf9,
211 .card_revision = 0xc8,
212 .card_fw_status0 = 0xe8,
213 .card_fw_status1 = 0xe9,
214 .card_rx_len = 0xea,
215 .card_rx_unit = 0xeb,
216 .io_port_0 = 0xe4,
217 .io_port_1 = 0xe5,
218 .io_port_2 = 0xe6,
219 .int_read_to_clear = true,
220 .host_int_rsr = 0x04,
221 .card_misc_cfg = 0xd8,
222 .fw_dump_ctrl = 0xf0,
223 .fw_dump_start = 0xf1,
224 .fw_dump_end = 0xf8,
225};
226
227static const struct btmrvl_sdio_device btmrvl_sdio_sd8688 = {
228 .helper = "mrvl/sd8688_helper.bin",
229 .firmware = "mrvl/sd8688.bin",
230 .reg = &btmrvl_reg_8688,
231 .support_pscan_win_report = false,
232 .sd_blksz_fw_dl = 64,
233 .supports_fw_dump = false,
234};
235
236static const struct btmrvl_sdio_device btmrvl_sdio_sd8787 = {
237 .helper = NULL,
238 .firmware = "mrvl/sd8787_uapsta.bin",
239 .reg = &btmrvl_reg_87xx,
240 .support_pscan_win_report = false,
241 .sd_blksz_fw_dl = 256,
242 .supports_fw_dump = false,
243};
244
245static const struct btmrvl_sdio_device btmrvl_sdio_sd8797 = {
246 .helper = NULL,
247 .firmware = "mrvl/sd8797_uapsta.bin",
248 .reg = &btmrvl_reg_87xx,
249 .support_pscan_win_report = false,
250 .sd_blksz_fw_dl = 256,
251 .supports_fw_dump = false,
252};
253
254static const struct btmrvl_sdio_device btmrvl_sdio_sd8887 = {
255 .helper = NULL,
256 .firmware = "mrvl/sd8887_uapsta.bin",
257 .reg = &btmrvl_reg_8887,
258 .support_pscan_win_report = true,
259 .sd_blksz_fw_dl = 256,
260 .supports_fw_dump = false,
261};
262
263static const struct btmrvl_sdio_device btmrvl_sdio_sd8897 = {
264 .helper = NULL,
265 .firmware = "mrvl/sd8897_uapsta.bin",
266 .reg = &btmrvl_reg_8897,
267 .support_pscan_win_report = true,
268 .sd_blksz_fw_dl = 256,
269 .supports_fw_dump = true,
270};
271
272static const struct btmrvl_sdio_device btmrvl_sdio_sd8977 = {
273 .helper = NULL,
274 .firmware = "mrvl/sdsd8977_combo_v2.bin",
275 .reg = &btmrvl_reg_89xx,
276 .support_pscan_win_report = true,
277 .sd_blksz_fw_dl = 256,
278 .supports_fw_dump = true,
279};
280
281static const struct btmrvl_sdio_device btmrvl_sdio_sd8987 = {
282 .helper = NULL,
283 .firmware = "mrvl/sd8987_uapsta.bin",
284 .reg = &btmrvl_reg_89xx,
285 .support_pscan_win_report = true,
286 .sd_blksz_fw_dl = 256,
287 .supports_fw_dump = true,
288};
289
290static const struct btmrvl_sdio_device btmrvl_sdio_sd8997 = {
291 .helper = NULL,
292 .firmware = "mrvl/sdsd8997_combo_v4.bin",
293 .reg = &btmrvl_reg_89xx,
294 .support_pscan_win_report = true,
295 .sd_blksz_fw_dl = 256,
296 .supports_fw_dump = true,
297};
298
299static const struct sdio_device_id btmrvl_sdio_ids[] = {
300 /* Marvell SD8688 Bluetooth device */
301 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8688_BT),
302 .driver_data = (unsigned long)&btmrvl_sdio_sd8688 },
303 /* Marvell SD8787 Bluetooth device */
304 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8787_BT),
305 .driver_data = (unsigned long)&btmrvl_sdio_sd8787 },
306 /* Marvell SD8787 Bluetooth AMP device */
307 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8787_BT_AMP),
308 .driver_data = (unsigned long)&btmrvl_sdio_sd8787 },
309 /* Marvell SD8797 Bluetooth device */
310 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8797_BT),
311 .driver_data = (unsigned long)&btmrvl_sdio_sd8797 },
312 /* Marvell SD8887 Bluetooth device */
313 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8887_BT),
314 .driver_data = (unsigned long)&btmrvl_sdio_sd8887 },
315 /* Marvell SD8897 Bluetooth device */
316 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8897_BT),
317 .driver_data = (unsigned long)&btmrvl_sdio_sd8897 },
318 /* Marvell SD8977 Bluetooth device */
319 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8977_BT),
320 .driver_data = (unsigned long)&btmrvl_sdio_sd8977 },
321 /* Marvell SD8987 Bluetooth device */
322 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8987_BT),
323 .driver_data = (unsigned long)&btmrvl_sdio_sd8987 },
324 /* Marvell SD8997 Bluetooth device */
325 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8997_BT),
326 .driver_data = (unsigned long)&btmrvl_sdio_sd8997 },
327
328 { } /* Terminating entry */
329};
330
331MODULE_DEVICE_TABLE(sdio, btmrvl_sdio_ids);
332
333static int btmrvl_sdio_get_rx_unit(struct btmrvl_sdio_card *card)
334{
335 u8 reg;
336 int ret;
337
338 reg = sdio_readb(card->func, card->reg->card_rx_unit, &ret);
339 if (!ret)
340 card->rx_unit = reg;
341
342 return ret;
343}
344
345static int btmrvl_sdio_read_fw_status(struct btmrvl_sdio_card *card, u16 *dat)
346{
347 u8 fws0, fws1;
348 int ret;
349
350 *dat = 0;
351
352 fws0 = sdio_readb(card->func, card->reg->card_fw_status0, &ret);
353 if (ret)
354 return -EIO;
355
356 fws1 = sdio_readb(card->func, card->reg->card_fw_status1, &ret);
357 if (ret)
358 return -EIO;
359
360 *dat = (((u16) fws1) << 8) | fws0;
361
362 return 0;
363}
364
365static int btmrvl_sdio_read_rx_len(struct btmrvl_sdio_card *card, u16 *dat)
366{
367 u8 reg;
368 int ret;
369
370 reg = sdio_readb(card->func, card->reg->card_rx_len, &ret);
371 if (!ret)
372 *dat = (u16) reg << card->rx_unit;
373
374 return ret;
375}
376
377static int btmrvl_sdio_enable_host_int_mask(struct btmrvl_sdio_card *card,
378 u8 mask)
379{
380 int ret;
381
382 sdio_writeb(card->func, mask, card->reg->host_int_mask, &ret);
383 if (ret) {
384 BT_ERR("Unable to enable the host interrupt!");
385 ret = -EIO;
386 }
387
388 return ret;
389}
390
391static int btmrvl_sdio_disable_host_int_mask(struct btmrvl_sdio_card *card,
392 u8 mask)
393{
394 u8 host_int_mask;
395 int ret;
396
397 host_int_mask = sdio_readb(card->func, card->reg->host_int_mask, &ret);
398 if (ret)
399 return -EIO;
400
401 host_int_mask &= ~mask;
402
403 sdio_writeb(card->func, host_int_mask, card->reg->host_int_mask, &ret);
404 if (ret < 0) {
405 BT_ERR("Unable to disable the host interrupt!");
406 return -EIO;
407 }
408
409 return 0;
410}
411
412static int btmrvl_sdio_poll_card_status(struct btmrvl_sdio_card *card, u8 bits)
413{
414 unsigned int tries;
415 u8 status;
416 int ret;
417
418 for (tries = 0; tries < MAX_POLL_TRIES * 1000; tries++) {
419 status = sdio_readb(card->func, card->reg->card_status, &ret);
420 if (ret)
421 goto failed;
422 if ((status & bits) == bits)
423 return ret;
424
425 udelay(1);
426 }
427
428 ret = -ETIMEDOUT;
429
430failed:
431 BT_ERR("FAILED! ret=%d", ret);
432
433 return ret;
434}
435
436static int btmrvl_sdio_verify_fw_download(struct btmrvl_sdio_card *card,
437 int pollnum)
438{
439 u16 firmwarestat;
440 int tries, ret;
441
442 /* Wait for firmware to become ready */
443 for (tries = 0; tries < pollnum; tries++) {
444 sdio_claim_host(card->func);
445 ret = btmrvl_sdio_read_fw_status(card, &firmwarestat);
446 sdio_release_host(card->func);
447 if (ret < 0)
448 continue;
449
450 if (firmwarestat == FIRMWARE_READY)
451 return 0;
452
453 msleep(100);
454 }
455
456 return -ETIMEDOUT;
457}
458
459static int btmrvl_sdio_download_helper(struct btmrvl_sdio_card *card)
460{
461 const struct firmware *fw_helper = NULL;
462 const u8 *helper = NULL;
463 int ret;
464 void *tmphlprbuf = NULL;
465 int tmphlprbufsz, hlprblknow, helperlen;
466 u8 *helperbuf;
467 u32 tx_len;
468
469 ret = request_firmware(&fw_helper, card->helper,
470 &card->func->dev);
471 if ((ret < 0) || !fw_helper) {
472 BT_ERR("request_firmware(helper) failed, error code = %d",
473 ret);
474 ret = -ENOENT;
475 goto done;
476 }
477
478 helper = fw_helper->data;
479 helperlen = fw_helper->size;
480
481 BT_DBG("Downloading helper image (%d bytes), block size %d bytes",
482 helperlen, SDIO_BLOCK_SIZE);
483
484 tmphlprbufsz = ALIGN_SZ(BTM_UPLD_SIZE, BTSDIO_DMA_ALIGN);
485
486 tmphlprbuf = kzalloc(tmphlprbufsz, GFP_KERNEL);
487 if (!tmphlprbuf) {
488 BT_ERR("Unable to allocate buffer for helper."
489 " Terminating download");
490 ret = -ENOMEM;
491 goto done;
492 }
493
494 helperbuf = (u8 *) ALIGN_ADDR(tmphlprbuf, BTSDIO_DMA_ALIGN);
495
496 /* Perform helper data transfer */
497 tx_len = (FIRMWARE_TRANSFER_NBLOCK * SDIO_BLOCK_SIZE)
498 - SDIO_HEADER_LEN;
499 hlprblknow = 0;
500
501 do {
502 ret = btmrvl_sdio_poll_card_status(card,
503 CARD_IO_READY | DN_LD_CARD_RDY);
504 if (ret < 0) {
505 BT_ERR("Helper download poll status timeout @ %d",
506 hlprblknow);
507 goto done;
508 }
509
510 /* Check if there is more data? */
511 if (hlprblknow >= helperlen)
512 break;
513
514 if (helperlen - hlprblknow < tx_len)
515 tx_len = helperlen - hlprblknow;
516
517 /* Little-endian */
518 helperbuf[0] = ((tx_len & 0x000000ff) >> 0);
519 helperbuf[1] = ((tx_len & 0x0000ff00) >> 8);
520 helperbuf[2] = ((tx_len & 0x00ff0000) >> 16);
521 helperbuf[3] = ((tx_len & 0xff000000) >> 24);
522
523 memcpy(&helperbuf[SDIO_HEADER_LEN], &helper[hlprblknow],
524 tx_len);
525
526 /* Now send the data */
527 ret = sdio_writesb(card->func, card->ioport, helperbuf,
528 FIRMWARE_TRANSFER_NBLOCK * SDIO_BLOCK_SIZE);
529 if (ret < 0) {
530 BT_ERR("IO error during helper download @ %d",
531 hlprblknow);
532 goto done;
533 }
534
535 hlprblknow += tx_len;
536 } while (true);
537
538 BT_DBG("Transferring helper image EOF block");
539
540 memset(helperbuf, 0x0, SDIO_BLOCK_SIZE);
541
542 ret = sdio_writesb(card->func, card->ioport, helperbuf,
543 SDIO_BLOCK_SIZE);
544 if (ret < 0) {
545 BT_ERR("IO error in writing helper image EOF block");
546 goto done;
547 }
548
549 ret = 0;
550
551done:
552 kfree(tmphlprbuf);
553 release_firmware(fw_helper);
554 return ret;
555}
556
557static int btmrvl_sdio_download_fw_w_helper(struct btmrvl_sdio_card *card)
558{
559 const struct firmware *fw_firmware = NULL;
560 const u8 *firmware = NULL;
561 int firmwarelen, tmpfwbufsz, ret;
562 unsigned int tries, offset;
563 u8 base0, base1;
564 void *tmpfwbuf = NULL;
565 u8 *fwbuf;
566 u16 len, blksz_dl = card->sd_blksz_fw_dl;
567 int txlen = 0, tx_blocks = 0, count = 0;
568
569 ret = request_firmware(&fw_firmware, card->firmware,
570 &card->func->dev);
571 if ((ret < 0) || !fw_firmware) {
572 BT_ERR("request_firmware(firmware) failed, error code = %d",
573 ret);
574 ret = -ENOENT;
575 goto done;
576 }
577
578 firmware = fw_firmware->data;
579 firmwarelen = fw_firmware->size;
580
581 BT_DBG("Downloading FW image (%d bytes)", firmwarelen);
582
583 tmpfwbufsz = ALIGN_SZ(BTM_UPLD_SIZE, BTSDIO_DMA_ALIGN);
584 tmpfwbuf = kzalloc(tmpfwbufsz, GFP_KERNEL);
585 if (!tmpfwbuf) {
586 BT_ERR("Unable to allocate buffer for firmware."
587 " Terminating download");
588 ret = -ENOMEM;
589 goto done;
590 }
591
592 /* Ensure aligned firmware buffer */
593 fwbuf = (u8 *) ALIGN_ADDR(tmpfwbuf, BTSDIO_DMA_ALIGN);
594
595 /* Perform firmware data transfer */
596 offset = 0;
597 do {
598 ret = btmrvl_sdio_poll_card_status(card,
599 CARD_IO_READY | DN_LD_CARD_RDY);
600 if (ret < 0) {
601 BT_ERR("FW download with helper poll status"
602 " timeout @ %d", offset);
603 goto done;
604 }
605
606 /* Check if there is more data ? */
607 if (offset >= firmwarelen)
608 break;
609
610 for (tries = 0; tries < MAX_POLL_TRIES; tries++) {
611 base0 = sdio_readb(card->func,
612 card->reg->sq_read_base_addr_a0, &ret);
613 if (ret) {
614 BT_ERR("BASE0 register read failed:"
615 " base0 = 0x%04X(%d)."
616 " Terminating download",
617 base0, base0);
618 ret = -EIO;
619 goto done;
620 }
621 base1 = sdio_readb(card->func,
622 card->reg->sq_read_base_addr_a1, &ret);
623 if (ret) {
624 BT_ERR("BASE1 register read failed:"
625 " base1 = 0x%04X(%d)."
626 " Terminating download",
627 base1, base1);
628 ret = -EIO;
629 goto done;
630 }
631
632 len = (((u16) base1) << 8) | base0;
633 if (len)
634 break;
635
636 udelay(10);
637 }
638
639 if (!len)
640 break;
641 else if (len > BTM_UPLD_SIZE) {
642 BT_ERR("FW download failure @%d, invalid length %d",
643 offset, len);
644 ret = -EINVAL;
645 goto done;
646 }
647
648 txlen = len;
649
650 if (len & BIT(0)) {
651 count++;
652 if (count > MAX_WRITE_IOMEM_RETRY) {
653 BT_ERR("FW download failure @%d, "
654 "over max retry count", offset);
655 ret = -EIO;
656 goto done;
657 }
658 BT_ERR("FW CRC error indicated by the helper: "
659 "len = 0x%04X, txlen = %d", len, txlen);
660 len &= ~BIT(0);
661 /* Set txlen to 0 so as to resend from same offset */
662 txlen = 0;
663 } else {
664 count = 0;
665
666 /* Last block ? */
667 if (firmwarelen - offset < txlen)
668 txlen = firmwarelen - offset;
669
670 tx_blocks = DIV_ROUND_UP(txlen, blksz_dl);
671
672 memcpy(fwbuf, &firmware[offset], txlen);
673 }
674
675 ret = sdio_writesb(card->func, card->ioport, fwbuf,
676 tx_blocks * blksz_dl);
677
678 if (ret < 0) {
679 BT_ERR("FW download, writesb(%d) failed @%d",
680 count, offset);
681 sdio_writeb(card->func, HOST_CMD53_FIN,
682 card->reg->cfg, &ret);
683 if (ret)
684 BT_ERR("writeb failed (CFG)");
685 }
686
687 offset += txlen;
688 } while (true);
689
690 BT_INFO("FW download over, size %d bytes", offset);
691
692 ret = 0;
693
694done:
695 kfree(tmpfwbuf);
696 release_firmware(fw_firmware);
697 return ret;
698}
699
700static int btmrvl_sdio_card_to_host(struct btmrvl_private *priv)
701{
702 u16 buf_len = 0;
703 int ret, num_blocks, blksz;
704 struct sk_buff *skb = NULL;
705 u32 type;
706 u8 *payload;
707 struct hci_dev *hdev = priv->btmrvl_dev.hcidev;
708 struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
709
710 if (!card || !card->func) {
711 BT_ERR("card or function is NULL!");
712 ret = -EINVAL;
713 goto exit;
714 }
715
716 /* Read the length of data to be transferred */
717 ret = btmrvl_sdio_read_rx_len(card, &buf_len);
718 if (ret < 0) {
719 BT_ERR("read rx_len failed");
720 ret = -EIO;
721 goto exit;
722 }
723
724 blksz = SDIO_BLOCK_SIZE;
725 num_blocks = DIV_ROUND_UP(buf_len, blksz);
726
727 if (buf_len <= SDIO_HEADER_LEN
728 || (num_blocks * blksz) > ALLOC_BUF_SIZE) {
729 BT_ERR("invalid packet length: %d", buf_len);
730 ret = -EINVAL;
731 goto exit;
732 }
733
734 /* Allocate buffer */
735 skb = bt_skb_alloc(num_blocks * blksz + BTSDIO_DMA_ALIGN, GFP_KERNEL);
736 if (!skb) {
737 BT_ERR("No free skb");
738 ret = -ENOMEM;
739 goto exit;
740 }
741
742 if ((unsigned long) skb->data & (BTSDIO_DMA_ALIGN - 1)) {
743 skb_put(skb, (unsigned long) skb->data &
744 (BTSDIO_DMA_ALIGN - 1));
745 skb_pull(skb, (unsigned long) skb->data &
746 (BTSDIO_DMA_ALIGN - 1));
747 }
748
749 payload = skb->data;
750
751 ret = sdio_readsb(card->func, payload, card->ioport,
752 num_blocks * blksz);
753 if (ret < 0) {
754 BT_ERR("readsb failed: %d", ret);
755 ret = -EIO;
756 goto exit;
757 }
758
759 /* This is SDIO specific header length: byte[2][1][0], type: byte[3]
760 * (HCI_COMMAND = 1, ACL_DATA = 2, SCO_DATA = 3, 0xFE = Vendor)
761 */
762
763 buf_len = payload[0];
764 buf_len |= payload[1] << 8;
765 buf_len |= payload[2] << 16;
766
767 if (buf_len > blksz * num_blocks) {
768 BT_ERR("Skip incorrect packet: hdrlen %d buffer %d",
769 buf_len, blksz * num_blocks);
770 ret = -EIO;
771 goto exit;
772 }
773
774 type = payload[3];
775
776 switch (type) {
777 case HCI_ACLDATA_PKT:
778 case HCI_SCODATA_PKT:
779 case HCI_EVENT_PKT:
780 hci_skb_pkt_type(skb) = type;
781 skb_put(skb, buf_len);
782 skb_pull(skb, SDIO_HEADER_LEN);
783
784 if (type == HCI_EVENT_PKT) {
785 if (btmrvl_check_evtpkt(priv, skb))
786 hci_recv_frame(hdev, skb);
787 } else {
788 hci_recv_frame(hdev, skb);
789 }
790
791 hdev->stat.byte_rx += buf_len;
792 break;
793
794 case MRVL_VENDOR_PKT:
795 hci_skb_pkt_type(skb) = HCI_VENDOR_PKT;
796 skb_put(skb, buf_len);
797 skb_pull(skb, SDIO_HEADER_LEN);
798
799 if (btmrvl_process_event(priv, skb))
800 hci_recv_frame(hdev, skb);
801
802 hdev->stat.byte_rx += buf_len;
803 break;
804
805 default:
806 BT_ERR("Unknown packet type:%d", type);
807 BT_ERR("hex: %*ph", blksz * num_blocks, payload);
808
809 kfree_skb(skb);
810 skb = NULL;
811 break;
812 }
813
814exit:
815 if (ret) {
816 hdev->stat.err_rx++;
817 kfree_skb(skb);
818 }
819
820 return ret;
821}
822
823static int btmrvl_sdio_process_int_status(struct btmrvl_private *priv)
824{
825 ulong flags;
826 u8 ireg;
827 struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
828
829 spin_lock_irqsave(&priv->driver_lock, flags);
830 ireg = sdio_ireg;
831 sdio_ireg = 0;
832 spin_unlock_irqrestore(&priv->driver_lock, flags);
833
834 sdio_claim_host(card->func);
835 if (ireg & DN_LD_HOST_INT_STATUS) {
836 if (priv->btmrvl_dev.tx_dnld_rdy)
837 BT_DBG("tx_done already received: "
838 " int_status=0x%x", ireg);
839 else
840 priv->btmrvl_dev.tx_dnld_rdy = true;
841 }
842
843 if (ireg & UP_LD_HOST_INT_STATUS)
844 btmrvl_sdio_card_to_host(priv);
845
846 sdio_release_host(card->func);
847
848 return 0;
849}
850
851static int btmrvl_sdio_read_to_clear(struct btmrvl_sdio_card *card, u8 *ireg)
852{
853 struct btmrvl_adapter *adapter = card->priv->adapter;
854 int ret;
855
856 ret = sdio_readsb(card->func, adapter->hw_regs, 0, SDIO_BLOCK_SIZE);
857 if (ret) {
858 BT_ERR("sdio_readsb: read int hw_regs failed: %d", ret);
859 return ret;
860 }
861
862 *ireg = adapter->hw_regs[card->reg->host_intstatus];
863 BT_DBG("hw_regs[%#x]=%#x", card->reg->host_intstatus, *ireg);
864
865 return 0;
866}
867
868static int btmrvl_sdio_write_to_clear(struct btmrvl_sdio_card *card, u8 *ireg)
869{
870 int ret;
871
872 *ireg = sdio_readb(card->func, card->reg->host_intstatus, &ret);
873 if (ret) {
874 BT_ERR("sdio_readb: read int status failed: %d", ret);
875 return ret;
876 }
877
878 if (*ireg) {
879 /*
880 * DN_LD_HOST_INT_STATUS and/or UP_LD_HOST_INT_STATUS
881 * Clear the interrupt status register and re-enable the
882 * interrupt.
883 */
884 BT_DBG("int_status = 0x%x", *ireg);
885
886 sdio_writeb(card->func, ~(*ireg) & (DN_LD_HOST_INT_STATUS |
887 UP_LD_HOST_INT_STATUS),
888 card->reg->host_intstatus, &ret);
889 if (ret) {
890 BT_ERR("sdio_writeb: clear int status failed: %d", ret);
891 return ret;
892 }
893 }
894
895 return 0;
896}
897
898static void btmrvl_sdio_interrupt(struct sdio_func *func)
899{
900 struct btmrvl_private *priv;
901 struct btmrvl_sdio_card *card;
902 ulong flags;
903 u8 ireg = 0;
904 int ret;
905
906 card = sdio_get_drvdata(func);
907 if (!card || !card->priv) {
908 BT_ERR("sbi_interrupt(%p) card or priv is NULL, card=%p",
909 func, card);
910 return;
911 }
912
913 priv = card->priv;
914
915 if (priv->surprise_removed)
916 return;
917
918 if (card->reg->int_read_to_clear)
919 ret = btmrvl_sdio_read_to_clear(card, &ireg);
920 else
921 ret = btmrvl_sdio_write_to_clear(card, &ireg);
922
923 if (ret)
924 return;
925
926 spin_lock_irqsave(&priv->driver_lock, flags);
927 sdio_ireg |= ireg;
928 spin_unlock_irqrestore(&priv->driver_lock, flags);
929
930 btmrvl_interrupt(priv);
931}
932
933static int btmrvl_sdio_register_dev(struct btmrvl_sdio_card *card)
934{
935 struct sdio_func *func;
936 u8 reg;
937 int ret;
938
939 if (!card || !card->func) {
940 BT_ERR("Error: card or function is NULL!");
941 ret = -EINVAL;
942 goto failed;
943 }
944
945 func = card->func;
946
947 sdio_claim_host(func);
948
949 ret = sdio_enable_func(func);
950 if (ret) {
951 BT_ERR("sdio_enable_func() failed: ret=%d", ret);
952 ret = -EIO;
953 goto release_host;
954 }
955
956 ret = sdio_claim_irq(func, btmrvl_sdio_interrupt);
957 if (ret) {
958 BT_ERR("sdio_claim_irq failed: ret=%d", ret);
959 ret = -EIO;
960 goto disable_func;
961 }
962
963 ret = sdio_set_block_size(card->func, SDIO_BLOCK_SIZE);
964 if (ret) {
965 BT_ERR("cannot set SDIO block size");
966 ret = -EIO;
967 goto release_irq;
968 }
969
970 reg = sdio_readb(func, card->reg->io_port_0, &ret);
971 if (ret < 0) {
972 ret = -EIO;
973 goto release_irq;
974 }
975
976 card->ioport = reg;
977
978 reg = sdio_readb(func, card->reg->io_port_1, &ret);
979 if (ret < 0) {
980 ret = -EIO;
981 goto release_irq;
982 }
983
984 card->ioport |= (reg << 8);
985
986 reg = sdio_readb(func, card->reg->io_port_2, &ret);
987 if (ret < 0) {
988 ret = -EIO;
989 goto release_irq;
990 }
991
992 card->ioport |= (reg << 16);
993
994 BT_DBG("SDIO FUNC%d IO port: 0x%x", func->num, card->ioport);
995
996 if (card->reg->int_read_to_clear) {
997 reg = sdio_readb(func, card->reg->host_int_rsr, &ret);
998 if (ret < 0) {
999 ret = -EIO;
1000 goto release_irq;
1001 }
1002 sdio_writeb(func, reg | 0x3f, card->reg->host_int_rsr, &ret);
1003 if (ret < 0) {
1004 ret = -EIO;
1005 goto release_irq;
1006 }
1007
1008 reg = sdio_readb(func, card->reg->card_misc_cfg, &ret);
1009 if (ret < 0) {
1010 ret = -EIO;
1011 goto release_irq;
1012 }
1013 sdio_writeb(func, reg | 0x10, card->reg->card_misc_cfg, &ret);
1014 if (ret < 0) {
1015 ret = -EIO;
1016 goto release_irq;
1017 }
1018 }
1019
1020 sdio_set_drvdata(func, card);
1021
1022 sdio_release_host(func);
1023
1024 return 0;
1025
1026release_irq:
1027 sdio_release_irq(func);
1028
1029disable_func:
1030 sdio_disable_func(func);
1031
1032release_host:
1033 sdio_release_host(func);
1034
1035failed:
1036 return ret;
1037}
1038
1039static int btmrvl_sdio_unregister_dev(struct btmrvl_sdio_card *card)
1040{
1041 if (card && card->func) {
1042 sdio_claim_host(card->func);
1043 sdio_release_irq(card->func);
1044 sdio_disable_func(card->func);
1045 sdio_release_host(card->func);
1046 sdio_set_drvdata(card->func, NULL);
1047 }
1048
1049 return 0;
1050}
1051
1052static int btmrvl_sdio_enable_host_int(struct btmrvl_sdio_card *card)
1053{
1054 int ret;
1055
1056 if (!card || !card->func)
1057 return -EINVAL;
1058
1059 sdio_claim_host(card->func);
1060
1061 ret = btmrvl_sdio_enable_host_int_mask(card, HIM_ENABLE);
1062
1063 btmrvl_sdio_get_rx_unit(card);
1064
1065 sdio_release_host(card->func);
1066
1067 return ret;
1068}
1069
1070static int btmrvl_sdio_disable_host_int(struct btmrvl_sdio_card *card)
1071{
1072 int ret;
1073
1074 if (!card || !card->func)
1075 return -EINVAL;
1076
1077 sdio_claim_host(card->func);
1078
1079 ret = btmrvl_sdio_disable_host_int_mask(card, HIM_DISABLE);
1080
1081 sdio_release_host(card->func);
1082
1083 return ret;
1084}
1085
1086static int btmrvl_sdio_host_to_card(struct btmrvl_private *priv,
1087 u8 *payload, u16 nb)
1088{
1089 struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
1090 int ret = 0;
1091 int blksz;
1092 int i = 0;
1093 u8 *buf = NULL;
1094 void *tmpbuf = NULL;
1095 int tmpbufsz;
1096
1097 if (!card || !card->func) {
1098 BT_ERR("card or function is NULL!");
1099 return -EINVAL;
1100 }
1101
1102 blksz = DIV_ROUND_UP(nb, SDIO_BLOCK_SIZE) * SDIO_BLOCK_SIZE;
1103
1104 buf = payload;
1105 if ((unsigned long) payload & (BTSDIO_DMA_ALIGN - 1) ||
1106 nb < blksz) {
1107 tmpbufsz = ALIGN_SZ(blksz, BTSDIO_DMA_ALIGN) +
1108 BTSDIO_DMA_ALIGN;
1109 tmpbuf = kzalloc(tmpbufsz, GFP_KERNEL);
1110 if (!tmpbuf)
1111 return -ENOMEM;
1112 buf = (u8 *) ALIGN_ADDR(tmpbuf, BTSDIO_DMA_ALIGN);
1113 memcpy(buf, payload, nb);
1114 }
1115
1116 sdio_claim_host(card->func);
1117
1118 do {
1119 /* Transfer data to card */
1120 ret = sdio_writesb(card->func, card->ioport, buf,
1121 blksz);
1122 if (ret < 0) {
1123 i++;
1124 BT_ERR("i=%d writesb failed: %d", i, ret);
1125 BT_ERR("hex: %*ph", nb, payload);
1126 ret = -EIO;
1127 if (i > MAX_WRITE_IOMEM_RETRY)
1128 goto exit;
1129 }
1130 } while (ret);
1131
1132 priv->btmrvl_dev.tx_dnld_rdy = false;
1133
1134exit:
1135 sdio_release_host(card->func);
1136 kfree(tmpbuf);
1137
1138 return ret;
1139}
1140
1141static int btmrvl_sdio_download_fw(struct btmrvl_sdio_card *card)
1142{
1143 int ret;
1144 u8 fws0;
1145 int pollnum = MAX_POLL_TRIES;
1146
1147 if (!card || !card->func) {
1148 BT_ERR("card or function is NULL!");
1149 return -EINVAL;
1150 }
1151
1152 if (!btmrvl_sdio_verify_fw_download(card, 1)) {
1153 BT_DBG("Firmware already downloaded!");
1154 return 0;
1155 }
1156
1157 sdio_claim_host(card->func);
1158
1159 /* Check if other function driver is downloading the firmware */
1160 fws0 = sdio_readb(card->func, card->reg->card_fw_status0, &ret);
1161 if (ret) {
1162 BT_ERR("Failed to read FW downloading status!");
1163 ret = -EIO;
1164 goto done;
1165 }
1166 if (fws0) {
1167 BT_DBG("BT not the winner (%#x). Skip FW downloading", fws0);
1168
1169 /* Give other function more time to download the firmware */
1170 pollnum *= 10;
1171 } else {
1172 if (card->helper) {
1173 ret = btmrvl_sdio_download_helper(card);
1174 if (ret) {
1175 BT_ERR("Failed to download helper!");
1176 ret = -EIO;
1177 goto done;
1178 }
1179 }
1180
1181 if (btmrvl_sdio_download_fw_w_helper(card)) {
1182 BT_ERR("Failed to download firmware!");
1183 ret = -EIO;
1184 goto done;
1185 }
1186 }
1187
1188 /*
1189 * winner or not, with this test the FW synchronizes when the
1190 * module can continue its initialization
1191 */
1192 if (btmrvl_sdio_verify_fw_download(card, pollnum)) {
1193 BT_ERR("FW failed to be active in time!");
1194 ret = -ETIMEDOUT;
1195 goto done;
1196 }
1197
1198 sdio_release_host(card->func);
1199
1200 return 0;
1201
1202done:
1203 sdio_release_host(card->func);
1204 return ret;
1205}
1206
1207static int btmrvl_sdio_wakeup_fw(struct btmrvl_private *priv)
1208{
1209 struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
1210 int ret = 0;
1211
1212 if (!card || !card->func) {
1213 BT_ERR("card or function is NULL!");
1214 return -EINVAL;
1215 }
1216
1217 sdio_claim_host(card->func);
1218
1219 sdio_writeb(card->func, HOST_POWER_UP, card->reg->cfg, &ret);
1220
1221 sdio_release_host(card->func);
1222
1223 BT_DBG("wake up firmware");
1224
1225 return ret;
1226}
1227
1228static void btmrvl_sdio_dump_regs(struct btmrvl_private *priv)
1229{
1230 struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
1231 int ret = 0;
1232 unsigned int reg, reg_start, reg_end;
1233 char buf[256], *ptr;
1234 u8 loop, func, data;
1235 int MAX_LOOP = 2;
1236
1237 btmrvl_sdio_wakeup_fw(priv);
1238 sdio_claim_host(card->func);
1239
1240 for (loop = 0; loop < MAX_LOOP; loop++) {
1241 memset(buf, 0, sizeof(buf));
1242 ptr = buf;
1243
1244 if (loop == 0) {
1245 /* Read the registers of SDIO function0 */
1246 func = loop;
1247 reg_start = 0;
1248 reg_end = 9;
1249 } else {
1250 func = 2;
1251 reg_start = 0;
1252 reg_end = 0x09;
1253 }
1254
1255 ptr += sprintf(ptr, "SDIO Func%d (%#x-%#x): ",
1256 func, reg_start, reg_end);
1257 for (reg = reg_start; reg <= reg_end; reg++) {
1258 if (func == 0)
1259 data = sdio_f0_readb(card->func, reg, &ret);
1260 else
1261 data = sdio_readb(card->func, reg, &ret);
1262
1263 if (!ret) {
1264 ptr += sprintf(ptr, "%02x ", data);
1265 } else {
1266 ptr += sprintf(ptr, "ERR");
1267 break;
1268 }
1269 }
1270
1271 BT_INFO("%s", buf);
1272 }
1273
1274 sdio_release_host(card->func);
1275}
1276
1277/* This function read/write firmware */
1278static enum
1279rdwr_status btmrvl_sdio_rdwr_firmware(struct btmrvl_private *priv,
1280 u8 doneflag)
1281{
1282 struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
1283 int ret, tries;
1284 u8 ctrl_data = 0;
1285
1286 sdio_writeb(card->func, FW_DUMP_HOST_READY, card->reg->fw_dump_ctrl,
1287 &ret);
1288
1289 if (ret) {
1290 BT_ERR("SDIO write err");
1291 return RDWR_STATUS_FAILURE;
1292 }
1293
1294 for (tries = 0; tries < MAX_POLL_TRIES; tries++) {
1295 ctrl_data = sdio_readb(card->func, card->reg->fw_dump_ctrl,
1296 &ret);
1297
1298 if (ret) {
1299 BT_ERR("SDIO read err");
1300 return RDWR_STATUS_FAILURE;
1301 }
1302
1303 if (ctrl_data == FW_DUMP_DONE)
1304 break;
1305 if (doneflag && ctrl_data == doneflag)
1306 return RDWR_STATUS_DONE;
1307 if (ctrl_data != FW_DUMP_HOST_READY) {
1308 BT_INFO("The ctrl reg was changed, re-try again!");
1309 sdio_writeb(card->func, FW_DUMP_HOST_READY,
1310 card->reg->fw_dump_ctrl, &ret);
1311 if (ret) {
1312 BT_ERR("SDIO write err");
1313 return RDWR_STATUS_FAILURE;
1314 }
1315 }
1316 usleep_range(100, 200);
1317 }
1318
1319 if (ctrl_data == FW_DUMP_HOST_READY) {
1320 BT_ERR("Fail to pull ctrl_data");
1321 return RDWR_STATUS_FAILURE;
1322 }
1323
1324 return RDWR_STATUS_SUCCESS;
1325}
1326
1327/* This function dump sdio register and memory data */
1328static void btmrvl_sdio_coredump(struct device *dev)
1329{
1330 struct sdio_func *func = dev_to_sdio_func(dev);
1331 struct btmrvl_sdio_card *card;
1332 struct btmrvl_private *priv;
1333 int ret = 0;
1334 unsigned int reg, reg_start, reg_end;
1335 enum rdwr_status stat;
1336 u8 *dbg_ptr, *end_ptr, *fw_dump_data, *fw_dump_ptr;
1337 u8 dump_num = 0, idx, i, read_reg, doneflag = 0;
1338 u32 memory_size, fw_dump_len = 0;
1339 int size = 0;
1340
1341 card = sdio_get_drvdata(func);
1342 priv = card->priv;
1343
1344 /* dump sdio register first */
1345 btmrvl_sdio_dump_regs(priv);
1346
1347 if (!card->supports_fw_dump) {
1348 BT_ERR("Firmware dump not supported for this card!");
1349 return;
1350 }
1351
1352 for (idx = 0; idx < ARRAY_SIZE(mem_type_mapping_tbl); idx++) {
1353 struct memory_type_mapping *entry = &mem_type_mapping_tbl[idx];
1354
1355 if (entry->mem_ptr) {
1356 vfree(entry->mem_ptr);
1357 entry->mem_ptr = NULL;
1358 }
1359 entry->mem_size = 0;
1360 }
1361
1362 btmrvl_sdio_wakeup_fw(priv);
1363 sdio_claim_host(card->func);
1364
1365 BT_INFO("== btmrvl firmware dump start ==");
1366
1367 stat = btmrvl_sdio_rdwr_firmware(priv, doneflag);
1368 if (stat == RDWR_STATUS_FAILURE)
1369 goto done;
1370
1371 reg = card->reg->fw_dump_start;
1372 /* Read the number of the memories which will dump */
1373 dump_num = sdio_readb(card->func, reg, &ret);
1374
1375 if (ret) {
1376 BT_ERR("SDIO read memory length err");
1377 goto done;
1378 }
1379
1380 /* Read the length of every memory which will dump */
1381 for (idx = 0; idx < dump_num; idx++) {
1382 struct memory_type_mapping *entry = &mem_type_mapping_tbl[idx];
1383
1384 stat = btmrvl_sdio_rdwr_firmware(priv, doneflag);
1385 if (stat == RDWR_STATUS_FAILURE)
1386 goto done;
1387
1388 memory_size = 0;
1389 reg = card->reg->fw_dump_start;
1390 for (i = 0; i < 4; i++) {
1391 read_reg = sdio_readb(card->func, reg, &ret);
1392 if (ret) {
1393 BT_ERR("SDIO read err");
1394 goto done;
1395 }
1396 memory_size |= (read_reg << i*8);
1397 reg++;
1398 }
1399
1400 if (memory_size == 0) {
1401 BT_INFO("Firmware dump finished!");
1402 sdio_writeb(card->func, FW_DUMP_READ_DONE,
1403 card->reg->fw_dump_ctrl, &ret);
1404 if (ret) {
1405 BT_ERR("SDIO Write MEMDUMP_FINISH ERR");
1406 goto done;
1407 }
1408 break;
1409 }
1410
1411 BT_INFO("%s_SIZE=0x%x", entry->mem_name, memory_size);
1412 entry->mem_ptr = vzalloc(memory_size + 1);
1413 entry->mem_size = memory_size;
1414 if (!entry->mem_ptr) {
1415 BT_ERR("Vzalloc %s failed", entry->mem_name);
1416 goto done;
1417 }
1418
1419 fw_dump_len += (strlen("========Start dump ") +
1420 strlen(entry->mem_name) +
1421 strlen("========\n") +
1422 (memory_size + 1) +
1423 strlen("\n========End dump========\n"));
1424
1425 dbg_ptr = entry->mem_ptr;
1426 end_ptr = dbg_ptr + memory_size;
1427
1428 doneflag = entry->done_flag;
1429 BT_INFO("Start %s output, please wait...",
1430 entry->mem_name);
1431
1432 do {
1433 stat = btmrvl_sdio_rdwr_firmware(priv, doneflag);
1434 if (stat == RDWR_STATUS_FAILURE)
1435 goto done;
1436
1437 reg_start = card->reg->fw_dump_start;
1438 reg_end = card->reg->fw_dump_end;
1439 for (reg = reg_start; reg <= reg_end; reg++) {
1440 *dbg_ptr = sdio_readb(card->func, reg, &ret);
1441 if (ret) {
1442 BT_ERR("SDIO read err");
1443 goto done;
1444 }
1445 if (dbg_ptr < end_ptr)
1446 dbg_ptr++;
1447 else
1448 BT_ERR("Allocated buffer not enough");
1449 }
1450
1451 if (stat == RDWR_STATUS_DONE) {
1452 BT_INFO("%s done: size=0x%tx",
1453 entry->mem_name,
1454 dbg_ptr - entry->mem_ptr);
1455 break;
1456 }
1457 } while (1);
1458 }
1459
1460 BT_INFO("== btmrvl firmware dump end ==");
1461
1462done:
1463 sdio_release_host(card->func);
1464
1465 if (fw_dump_len == 0)
1466 return;
1467
1468 fw_dump_data = vzalloc(fw_dump_len + 1);
1469 if (!fw_dump_data) {
1470 BT_ERR("Vzalloc fw_dump_data fail!");
1471 return;
1472 }
1473 fw_dump_ptr = fw_dump_data;
1474
1475 /* Dump all the memory data into single file, a userspace script will
1476 * be used to split all the memory data to multiple files
1477 */
1478 BT_INFO("== btmrvl firmware dump to /sys/class/devcoredump start");
1479 for (idx = 0; idx < dump_num; idx++) {
1480 struct memory_type_mapping *entry = &mem_type_mapping_tbl[idx];
1481
1482 if (entry->mem_ptr) {
1483 size += scnprintf(fw_dump_ptr + size,
1484 fw_dump_len + 1 - size,
1485 "========Start dump %s========\n",
1486 entry->mem_name);
1487
1488 memcpy(fw_dump_ptr + size, entry->mem_ptr,
1489 entry->mem_size);
1490 size += entry->mem_size;
1491
1492 size += scnprintf(fw_dump_ptr + size,
1493 fw_dump_len + 1 - size,
1494 "\n========End dump========\n");
1495
1496 vfree(mem_type_mapping_tbl[idx].mem_ptr);
1497 mem_type_mapping_tbl[idx].mem_ptr = NULL;
1498 }
1499 }
1500
1501 /* fw_dump_data will be free in device coredump release function
1502 * after 5 min
1503 */
1504 dev_coredumpv(&card->func->dev, fw_dump_data, fw_dump_len, GFP_KERNEL);
1505 BT_INFO("== btmrvl firmware dump to /sys/class/devcoredump end");
1506}
1507
1508static int btmrvl_sdio_probe(struct sdio_func *func,
1509 const struct sdio_device_id *id)
1510{
1511 int ret = 0;
1512 struct btmrvl_private *priv = NULL;
1513 struct btmrvl_sdio_card *card = NULL;
1514
1515 BT_INFO("vendor=0x%x, device=0x%x, class=%d, fn=%d",
1516 id->vendor, id->device, id->class, func->num);
1517
1518 card = devm_kzalloc(&func->dev, sizeof(*card), GFP_KERNEL);
1519 if (!card)
1520 return -ENOMEM;
1521
1522 card->func = func;
1523
1524 if (id->driver_data) {
1525 struct btmrvl_sdio_device *data = (void *) id->driver_data;
1526 card->helper = data->helper;
1527 card->firmware = data->firmware;
1528 card->reg = data->reg;
1529 card->sd_blksz_fw_dl = data->sd_blksz_fw_dl;
1530 card->support_pscan_win_report = data->support_pscan_win_report;
1531 card->supports_fw_dump = data->supports_fw_dump;
1532 }
1533
1534 if (btmrvl_sdio_register_dev(card) < 0) {
1535 BT_ERR("Failed to register BT device!");
1536 return -ENODEV;
1537 }
1538
1539 /* Disable the interrupts on the card */
1540 btmrvl_sdio_disable_host_int(card);
1541
1542 if (btmrvl_sdio_download_fw(card)) {
1543 BT_ERR("Downloading firmware failed!");
1544 ret = -ENODEV;
1545 goto unreg_dev;
1546 }
1547
1548 btmrvl_sdio_enable_host_int(card);
1549
1550 /* Device tree node parsing and platform specific configuration*/
1551 btmrvl_sdio_probe_of(&func->dev, card);
1552
1553 priv = btmrvl_add_card(card);
1554 if (!priv) {
1555 BT_ERR("Initializing card failed!");
1556 ret = -ENODEV;
1557 goto disable_host_int;
1558 }
1559
1560 card->priv = priv;
1561
1562 /* Initialize the interface specific function pointers */
1563 priv->hw_host_to_card = btmrvl_sdio_host_to_card;
1564 priv->hw_wakeup_firmware = btmrvl_sdio_wakeup_fw;
1565 priv->hw_process_int_status = btmrvl_sdio_process_int_status;
1566
1567 if (btmrvl_register_hdev(priv)) {
1568 BT_ERR("Register hdev failed!");
1569 ret = -ENODEV;
1570 goto disable_host_int;
1571 }
1572
1573 return 0;
1574
1575disable_host_int:
1576 btmrvl_sdio_disable_host_int(card);
1577unreg_dev:
1578 btmrvl_sdio_unregister_dev(card);
1579 return ret;
1580}
1581
1582static void btmrvl_sdio_remove(struct sdio_func *func)
1583{
1584 struct btmrvl_sdio_card *card;
1585
1586 if (func) {
1587 card = sdio_get_drvdata(func);
1588 if (card) {
1589 /* Send SHUTDOWN command & disable interrupt
1590 * if user removes the module.
1591 */
1592 if (user_rmmod) {
1593 btmrvl_send_module_cfg_cmd(card->priv,
1594 MODULE_SHUTDOWN_REQ);
1595 btmrvl_sdio_disable_host_int(card);
1596 }
1597
1598 BT_DBG("unregister dev");
1599 card->priv->surprise_removed = true;
1600 btmrvl_sdio_unregister_dev(card);
1601 btmrvl_remove_card(card->priv);
1602 }
1603 }
1604}
1605
1606static int btmrvl_sdio_suspend(struct device *dev)
1607{
1608 struct sdio_func *func = dev_to_sdio_func(dev);
1609 struct btmrvl_sdio_card *card;
1610 struct btmrvl_private *priv;
1611 mmc_pm_flag_t pm_flags;
1612 struct hci_dev *hcidev;
1613
1614 if (func) {
1615 pm_flags = sdio_get_host_pm_caps(func);
1616 BT_DBG("%s: suspend: PM flags = 0x%x", sdio_func_id(func),
1617 pm_flags);
1618 if (!(pm_flags & MMC_PM_KEEP_POWER)) {
1619 BT_ERR("%s: cannot remain alive while suspended",
1620 sdio_func_id(func));
1621 return -ENOSYS;
1622 }
1623 card = sdio_get_drvdata(func);
1624 if (!card || !card->priv) {
1625 BT_ERR("card or priv structure is not valid");
1626 return 0;
1627 }
1628 } else {
1629 BT_ERR("sdio_func is not specified");
1630 return 0;
1631 }
1632
1633 /* Enable platform specific wakeup interrupt */
1634 if (card->plt_wake_cfg && card->plt_wake_cfg->irq_bt >= 0 &&
1635 device_may_wakeup(dev)) {
1636 card->plt_wake_cfg->wake_by_bt = false;
1637 enable_irq(card->plt_wake_cfg->irq_bt);
1638 enable_irq_wake(card->plt_wake_cfg->irq_bt);
1639 }
1640
1641 priv = card->priv;
1642 priv->adapter->is_suspending = true;
1643 hcidev = priv->btmrvl_dev.hcidev;
1644 BT_DBG("%s: SDIO suspend", hcidev->name);
1645 hci_suspend_dev(hcidev);
1646
1647 if (priv->adapter->hs_state != HS_ACTIVATED) {
1648 if (btmrvl_enable_hs(priv)) {
1649 BT_ERR("HS not activated, suspend failed!");
1650 /* Disable platform specific wakeup interrupt */
1651 if (card->plt_wake_cfg &&
1652 card->plt_wake_cfg->irq_bt >= 0 &&
1653 device_may_wakeup(dev)) {
1654 disable_irq_wake(card->plt_wake_cfg->irq_bt);
1655 disable_irq(card->plt_wake_cfg->irq_bt);
1656 }
1657
1658 priv->adapter->is_suspending = false;
1659 return -EBUSY;
1660 }
1661 }
1662
1663 priv->adapter->is_suspending = false;
1664 priv->adapter->is_suspended = true;
1665
1666 /* We will keep the power when hs enabled successfully */
1667 if (priv->adapter->hs_state == HS_ACTIVATED) {
1668 BT_DBG("suspend with MMC_PM_KEEP_POWER");
1669 return sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER);
1670 }
1671
1672 BT_DBG("suspend without MMC_PM_KEEP_POWER");
1673 return 0;
1674}
1675
1676static int btmrvl_sdio_resume(struct device *dev)
1677{
1678 struct sdio_func *func = dev_to_sdio_func(dev);
1679 struct btmrvl_sdio_card *card;
1680 struct btmrvl_private *priv;
1681 mmc_pm_flag_t pm_flags;
1682 struct hci_dev *hcidev;
1683
1684 if (func) {
1685 pm_flags = sdio_get_host_pm_caps(func);
1686 BT_DBG("%s: resume: PM flags = 0x%x", sdio_func_id(func),
1687 pm_flags);
1688 card = sdio_get_drvdata(func);
1689 if (!card || !card->priv) {
1690 BT_ERR("card or priv structure is not valid");
1691 return 0;
1692 }
1693 } else {
1694 BT_ERR("sdio_func is not specified");
1695 return 0;
1696 }
1697 priv = card->priv;
1698
1699 if (!priv->adapter->is_suspended) {
1700 BT_DBG("device already resumed");
1701 return 0;
1702 }
1703
1704 priv->hw_wakeup_firmware(priv);
1705 priv->adapter->hs_state = HS_DEACTIVATED;
1706 hcidev = priv->btmrvl_dev.hcidev;
1707 BT_DBG("%s: HS DEACTIVATED in resume!", hcidev->name);
1708 priv->adapter->is_suspended = false;
1709 BT_DBG("%s: SDIO resume", hcidev->name);
1710 hci_resume_dev(hcidev);
1711
1712 /* Disable platform specific wakeup interrupt */
1713 if (card->plt_wake_cfg && card->plt_wake_cfg->irq_bt >= 0 &&
1714 device_may_wakeup(dev)) {
1715 disable_irq_wake(card->plt_wake_cfg->irq_bt);
1716 disable_irq(card->plt_wake_cfg->irq_bt);
1717 if (card->plt_wake_cfg->wake_by_bt)
1718 /* Undo our disable, since interrupt handler already
1719 * did this.
1720 */
1721 enable_irq(card->plt_wake_cfg->irq_bt);
1722 }
1723
1724 return 0;
1725}
1726
1727static const struct dev_pm_ops btmrvl_sdio_pm_ops = {
1728 .suspend = btmrvl_sdio_suspend,
1729 .resume = btmrvl_sdio_resume,
1730};
1731
1732static struct sdio_driver bt_mrvl_sdio = {
1733 .name = "btmrvl_sdio",
1734 .id_table = btmrvl_sdio_ids,
1735 .probe = btmrvl_sdio_probe,
1736 .remove = btmrvl_sdio_remove,
1737 .drv = {
1738 .coredump = btmrvl_sdio_coredump,
1739 .pm = &btmrvl_sdio_pm_ops,
1740 }
1741};
1742
1743static int __init btmrvl_sdio_init_module(void)
1744{
1745 if (sdio_register_driver(&bt_mrvl_sdio) != 0) {
1746 BT_ERR("SDIO Driver Registration Failed");
1747 return -ENODEV;
1748 }
1749
1750 /* Clear the flag in case user removes the card. */
1751 user_rmmod = 0;
1752
1753 return 0;
1754}
1755
1756static void __exit btmrvl_sdio_exit_module(void)
1757{
1758 /* Set the flag as user is removing this module. */
1759 user_rmmod = 1;
1760
1761 sdio_unregister_driver(&bt_mrvl_sdio);
1762}
1763
1764module_init(btmrvl_sdio_init_module);
1765module_exit(btmrvl_sdio_exit_module);
1766
1767MODULE_AUTHOR("Marvell International Ltd.");
1768MODULE_DESCRIPTION("Marvell BT-over-SDIO driver ver " VERSION);
1769MODULE_VERSION(VERSION);
1770MODULE_LICENSE("GPL v2");
1771MODULE_FIRMWARE("mrvl/sd8688_helper.bin");
1772MODULE_FIRMWARE("mrvl/sd8688.bin");
1773MODULE_FIRMWARE("mrvl/sd8787_uapsta.bin");
1774MODULE_FIRMWARE("mrvl/sd8797_uapsta.bin");
1775MODULE_FIRMWARE("mrvl/sd8887_uapsta.bin");
1776MODULE_FIRMWARE("mrvl/sd8897_uapsta.bin");
1777MODULE_FIRMWARE("mrvl/sdsd8977_combo_v2.bin");
1778MODULE_FIRMWARE("mrvl/sd8987_uapsta.bin");
1779MODULE_FIRMWARE("mrvl/sdsd8997_combo_v4.bin");
1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Marvell BT-over-SDIO driver: SDIO interface related functions.
4 *
5 * Copyright (C) 2009, Marvell International Ltd.
6 **/
7
8#include <linux/firmware.h>
9#include <linux/slab.h>
10#include <linux/suspend.h>
11
12#include <linux/mmc/sdio_ids.h>
13#include <linux/mmc/sdio_func.h>
14#include <linux/module.h>
15#include <linux/devcoredump.h>
16
17#include <net/bluetooth/bluetooth.h>
18#include <net/bluetooth/hci_core.h>
19
20#include "btmrvl_drv.h"
21#include "btmrvl_sdio.h"
22
23#define VERSION "1.0"
24
25static struct memory_type_mapping mem_type_mapping_tbl[] = {
26 {"ITCM", NULL, 0, 0xF0},
27 {"DTCM", NULL, 0, 0xF1},
28 {"SQRAM", NULL, 0, 0xF2},
29 {"APU", NULL, 0, 0xF3},
30 {"CIU", NULL, 0, 0xF4},
31 {"ICU", NULL, 0, 0xF5},
32 {"MAC", NULL, 0, 0xF6},
33 {"EXT7", NULL, 0, 0xF7},
34 {"EXT8", NULL, 0, 0xF8},
35 {"EXT9", NULL, 0, 0xF9},
36 {"EXT10", NULL, 0, 0xFA},
37 {"EXT11", NULL, 0, 0xFB},
38 {"EXT12", NULL, 0, 0xFC},
39 {"EXT13", NULL, 0, 0xFD},
40 {"EXTLAST", NULL, 0, 0xFE},
41};
42
43static const struct of_device_id btmrvl_sdio_of_match_table[] __maybe_unused = {
44 { .compatible = "marvell,sd8897-bt" },
45 { .compatible = "marvell,sd8997-bt" },
46 { }
47};
48
49static irqreturn_t btmrvl_wake_irq_bt(int irq, void *priv)
50{
51 struct btmrvl_sdio_card *card = priv;
52 struct device *dev = &card->func->dev;
53 struct btmrvl_plt_wake_cfg *cfg = card->plt_wake_cfg;
54
55 dev_info(dev, "wake by bt\n");
56 cfg->wake_by_bt = true;
57 disable_irq_nosync(irq);
58
59 pm_wakeup_event(dev, 0);
60 pm_system_wakeup();
61
62 return IRQ_HANDLED;
63}
64
65/* This function parses device tree node using mmc subnode devicetree API.
66 * The device node is saved in card->plt_of_node.
67 * If the device tree node exists and includes interrupts attributes, this
68 * function will request platform specific wakeup interrupt.
69 */
70static int btmrvl_sdio_probe_of(struct device *dev,
71 struct btmrvl_sdio_card *card)
72{
73 struct btmrvl_plt_wake_cfg *cfg;
74 int ret;
75
76 if (!dev->of_node ||
77 !of_match_node(btmrvl_sdio_of_match_table, dev->of_node)) {
78 dev_info(dev, "sdio device tree data not available\n");
79 return -1;
80 }
81
82 card->plt_of_node = dev->of_node;
83
84 card->plt_wake_cfg = devm_kzalloc(dev, sizeof(*card->plt_wake_cfg),
85 GFP_KERNEL);
86 cfg = card->plt_wake_cfg;
87 if (cfg && card->plt_of_node) {
88 cfg->irq_bt = irq_of_parse_and_map(card->plt_of_node, 0);
89 if (!cfg->irq_bt) {
90 dev_err(dev, "fail to parse irq_bt from device tree\n");
91 cfg->irq_bt = -1;
92 } else {
93 ret = devm_request_irq(dev, cfg->irq_bt,
94 btmrvl_wake_irq_bt,
95 0, "bt_wake", card);
96 if (ret) {
97 dev_err(dev,
98 "Failed to request irq_bt %d (%d)\n",
99 cfg->irq_bt, ret);
100 }
101
102 /* Configure wakeup (enabled by default) */
103 device_init_wakeup(dev, true);
104 disable_irq(cfg->irq_bt);
105 }
106 }
107
108 return 0;
109}
110
111/* The btmrvl_sdio_remove() callback function is called
112 * when user removes this module from kernel space or ejects
113 * the card from the slot. The driver handles these 2 cases
114 * differently.
115 * If the user is removing the module, a MODULE_SHUTDOWN_REQ
116 * command is sent to firmware and interrupt will be disabled.
117 * If the card is removed, there is no need to send command
118 * or disable interrupt.
119 *
120 * The variable 'user_rmmod' is used to distinguish these two
121 * scenarios. This flag is initialized as FALSE in case the card
122 * is removed, and will be set to TRUE for module removal when
123 * module_exit function is called.
124 */
125static u8 user_rmmod;
126static u8 sdio_ireg;
127
128static const struct btmrvl_sdio_card_reg btmrvl_reg_8688 = {
129 .cfg = 0x03,
130 .host_int_mask = 0x04,
131 .host_intstatus = 0x05,
132 .card_status = 0x20,
133 .sq_read_base_addr_a0 = 0x10,
134 .sq_read_base_addr_a1 = 0x11,
135 .card_fw_status0 = 0x40,
136 .card_fw_status1 = 0x41,
137 .card_rx_len = 0x42,
138 .card_rx_unit = 0x43,
139 .io_port_0 = 0x00,
140 .io_port_1 = 0x01,
141 .io_port_2 = 0x02,
142 .int_read_to_clear = false,
143};
144static const struct btmrvl_sdio_card_reg btmrvl_reg_87xx = {
145 .cfg = 0x00,
146 .host_int_mask = 0x02,
147 .host_intstatus = 0x03,
148 .card_status = 0x30,
149 .sq_read_base_addr_a0 = 0x40,
150 .sq_read_base_addr_a1 = 0x41,
151 .card_revision = 0x5c,
152 .card_fw_status0 = 0x60,
153 .card_fw_status1 = 0x61,
154 .card_rx_len = 0x62,
155 .card_rx_unit = 0x63,
156 .io_port_0 = 0x78,
157 .io_port_1 = 0x79,
158 .io_port_2 = 0x7a,
159 .int_read_to_clear = false,
160};
161
162static const struct btmrvl_sdio_card_reg btmrvl_reg_8887 = {
163 .cfg = 0x00,
164 .host_int_mask = 0x08,
165 .host_intstatus = 0x0C,
166 .card_status = 0x5C,
167 .sq_read_base_addr_a0 = 0x6C,
168 .sq_read_base_addr_a1 = 0x6D,
169 .card_revision = 0xC8,
170 .card_fw_status0 = 0x88,
171 .card_fw_status1 = 0x89,
172 .card_rx_len = 0x8A,
173 .card_rx_unit = 0x8B,
174 .io_port_0 = 0xE4,
175 .io_port_1 = 0xE5,
176 .io_port_2 = 0xE6,
177 .int_read_to_clear = true,
178 .host_int_rsr = 0x04,
179 .card_misc_cfg = 0xD8,
180};
181
182static const struct btmrvl_sdio_card_reg btmrvl_reg_8897 = {
183 .cfg = 0x00,
184 .host_int_mask = 0x02,
185 .host_intstatus = 0x03,
186 .card_status = 0x50,
187 .sq_read_base_addr_a0 = 0x60,
188 .sq_read_base_addr_a1 = 0x61,
189 .card_revision = 0xbc,
190 .card_fw_status0 = 0xc0,
191 .card_fw_status1 = 0xc1,
192 .card_rx_len = 0xc2,
193 .card_rx_unit = 0xc3,
194 .io_port_0 = 0xd8,
195 .io_port_1 = 0xd9,
196 .io_port_2 = 0xda,
197 .int_read_to_clear = true,
198 .host_int_rsr = 0x01,
199 .card_misc_cfg = 0xcc,
200 .fw_dump_ctrl = 0xe2,
201 .fw_dump_start = 0xe3,
202 .fw_dump_end = 0xea,
203};
204
205static const struct btmrvl_sdio_card_reg btmrvl_reg_89xx = {
206 .cfg = 0x00,
207 .host_int_mask = 0x08,
208 .host_intstatus = 0x0c,
209 .card_status = 0x5c,
210 .sq_read_base_addr_a0 = 0xf8,
211 .sq_read_base_addr_a1 = 0xf9,
212 .card_revision = 0xc8,
213 .card_fw_status0 = 0xe8,
214 .card_fw_status1 = 0xe9,
215 .card_rx_len = 0xea,
216 .card_rx_unit = 0xeb,
217 .io_port_0 = 0xe4,
218 .io_port_1 = 0xe5,
219 .io_port_2 = 0xe6,
220 .int_read_to_clear = true,
221 .host_int_rsr = 0x04,
222 .card_misc_cfg = 0xd8,
223 .fw_dump_ctrl = 0xf0,
224 .fw_dump_start = 0xf1,
225 .fw_dump_end = 0xf8,
226};
227
228static const struct btmrvl_sdio_device btmrvl_sdio_sd8688 = {
229 .helper = "mrvl/sd8688_helper.bin",
230 .firmware = "mrvl/sd8688.bin",
231 .reg = &btmrvl_reg_8688,
232 .support_pscan_win_report = false,
233 .sd_blksz_fw_dl = 64,
234 .supports_fw_dump = false,
235};
236
237static const struct btmrvl_sdio_device btmrvl_sdio_sd8787 = {
238 .helper = NULL,
239 .firmware = "mrvl/sd8787_uapsta.bin",
240 .reg = &btmrvl_reg_87xx,
241 .support_pscan_win_report = false,
242 .sd_blksz_fw_dl = 256,
243 .supports_fw_dump = false,
244};
245
246static const struct btmrvl_sdio_device btmrvl_sdio_sd8797 = {
247 .helper = NULL,
248 .firmware = "mrvl/sd8797_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
255static const struct btmrvl_sdio_device btmrvl_sdio_sd8887 = {
256 .helper = NULL,
257 .firmware = "mrvl/sd8887_uapsta.bin",
258 .reg = &btmrvl_reg_8887,
259 .support_pscan_win_report = true,
260 .sd_blksz_fw_dl = 256,
261 .supports_fw_dump = false,
262};
263
264static const struct btmrvl_sdio_device btmrvl_sdio_sd8897 = {
265 .helper = NULL,
266 .firmware = "mrvl/sd8897_uapsta.bin",
267 .reg = &btmrvl_reg_8897,
268 .support_pscan_win_report = true,
269 .sd_blksz_fw_dl = 256,
270 .supports_fw_dump = true,
271};
272
273static const struct btmrvl_sdio_device btmrvl_sdio_sd8977 = {
274 .helper = NULL,
275 .firmware = "mrvl/sdsd8977_combo_v2.bin",
276 .reg = &btmrvl_reg_89xx,
277 .support_pscan_win_report = true,
278 .sd_blksz_fw_dl = 256,
279 .supports_fw_dump = true,
280};
281
282static const struct btmrvl_sdio_device btmrvl_sdio_sd8987 = {
283 .helper = NULL,
284 .firmware = "mrvl/sd8987_uapsta.bin",
285 .reg = &btmrvl_reg_89xx,
286 .support_pscan_win_report = true,
287 .sd_blksz_fw_dl = 256,
288 .supports_fw_dump = true,
289};
290
291static const struct btmrvl_sdio_device btmrvl_sdio_sd8997 = {
292 .helper = NULL,
293 .firmware = "mrvl/sdsd8997_combo_v4.bin",
294 .reg = &btmrvl_reg_89xx,
295 .support_pscan_win_report = true,
296 .sd_blksz_fw_dl = 256,
297 .supports_fw_dump = true,
298};
299
300static const struct sdio_device_id btmrvl_sdio_ids[] = {
301 /* Marvell SD8688 Bluetooth device */
302 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8688_BT),
303 .driver_data = (unsigned long)&btmrvl_sdio_sd8688 },
304 /* Marvell SD8787 Bluetooth device */
305 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8787_BT),
306 .driver_data = (unsigned long)&btmrvl_sdio_sd8787 },
307 /* Marvell SD8787 Bluetooth AMP device */
308 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8787_BT_AMP),
309 .driver_data = (unsigned long)&btmrvl_sdio_sd8787 },
310 /* Marvell SD8797 Bluetooth device */
311 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8797_BT),
312 .driver_data = (unsigned long)&btmrvl_sdio_sd8797 },
313 /* Marvell SD8887 Bluetooth device */
314 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8887_BT),
315 .driver_data = (unsigned long)&btmrvl_sdio_sd8887 },
316 /* Marvell SD8897 Bluetooth device */
317 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8897_BT),
318 .driver_data = (unsigned long)&btmrvl_sdio_sd8897 },
319 /* Marvell SD8977 Bluetooth device */
320 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8977_BT),
321 .driver_data = (unsigned long)&btmrvl_sdio_sd8977 },
322 /* Marvell SD8987 Bluetooth device */
323 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8987_BT),
324 .driver_data = (unsigned long)&btmrvl_sdio_sd8987 },
325 /* Marvell SD8997 Bluetooth device */
326 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8997_BT),
327 .driver_data = (unsigned long)&btmrvl_sdio_sd8997 },
328
329 { } /* Terminating entry */
330};
331
332MODULE_DEVICE_TABLE(sdio, btmrvl_sdio_ids);
333
334static int btmrvl_sdio_get_rx_unit(struct btmrvl_sdio_card *card)
335{
336 u8 reg;
337 int ret;
338
339 reg = sdio_readb(card->func, card->reg->card_rx_unit, &ret);
340 if (!ret)
341 card->rx_unit = reg;
342
343 return ret;
344}
345
346static int btmrvl_sdio_read_fw_status(struct btmrvl_sdio_card *card, u16 *dat)
347{
348 u8 fws0, fws1;
349 int ret;
350
351 *dat = 0;
352
353 fws0 = sdio_readb(card->func, card->reg->card_fw_status0, &ret);
354 if (ret)
355 return -EIO;
356
357 fws1 = sdio_readb(card->func, card->reg->card_fw_status1, &ret);
358 if (ret)
359 return -EIO;
360
361 *dat = (((u16) fws1) << 8) | fws0;
362
363 return 0;
364}
365
366static int btmrvl_sdio_read_rx_len(struct btmrvl_sdio_card *card, u16 *dat)
367{
368 u8 reg;
369 int ret;
370
371 reg = sdio_readb(card->func, card->reg->card_rx_len, &ret);
372 if (!ret)
373 *dat = (u16) reg << card->rx_unit;
374
375 return ret;
376}
377
378static int btmrvl_sdio_enable_host_int_mask(struct btmrvl_sdio_card *card,
379 u8 mask)
380{
381 int ret;
382
383 sdio_writeb(card->func, mask, card->reg->host_int_mask, &ret);
384 if (ret) {
385 BT_ERR("Unable to enable the host interrupt!");
386 ret = -EIO;
387 }
388
389 return ret;
390}
391
392static int btmrvl_sdio_disable_host_int_mask(struct btmrvl_sdio_card *card,
393 u8 mask)
394{
395 u8 host_int_mask;
396 int ret;
397
398 host_int_mask = sdio_readb(card->func, card->reg->host_int_mask, &ret);
399 if (ret)
400 return -EIO;
401
402 host_int_mask &= ~mask;
403
404 sdio_writeb(card->func, host_int_mask, card->reg->host_int_mask, &ret);
405 if (ret < 0) {
406 BT_ERR("Unable to disable the host interrupt!");
407 return -EIO;
408 }
409
410 return 0;
411}
412
413static int btmrvl_sdio_poll_card_status(struct btmrvl_sdio_card *card, u8 bits)
414{
415 unsigned int tries;
416 u8 status;
417 int ret;
418
419 for (tries = 0; tries < MAX_POLL_TRIES * 1000; tries++) {
420 status = sdio_readb(card->func, card->reg->card_status, &ret);
421 if (ret)
422 goto failed;
423 if ((status & bits) == bits)
424 return ret;
425
426 udelay(1);
427 }
428
429 ret = -ETIMEDOUT;
430
431failed:
432 BT_ERR("FAILED! ret=%d", ret);
433
434 return ret;
435}
436
437static int btmrvl_sdio_verify_fw_download(struct btmrvl_sdio_card *card,
438 int pollnum)
439{
440 u16 firmwarestat;
441 int tries, ret;
442
443 /* Wait for firmware to become ready */
444 for (tries = 0; tries < pollnum; tries++) {
445 sdio_claim_host(card->func);
446 ret = btmrvl_sdio_read_fw_status(card, &firmwarestat);
447 sdio_release_host(card->func);
448 if (ret < 0)
449 continue;
450
451 if (firmwarestat == FIRMWARE_READY)
452 return 0;
453
454 msleep(100);
455 }
456
457 return -ETIMEDOUT;
458}
459
460static int btmrvl_sdio_download_helper(struct btmrvl_sdio_card *card)
461{
462 const struct firmware *fw_helper = NULL;
463 const u8 *helper = NULL;
464 int ret;
465 void *tmphlprbuf = NULL;
466 int tmphlprbufsz, hlprblknow, helperlen;
467 u8 *helperbuf;
468 u32 tx_len;
469
470 ret = request_firmware(&fw_helper, card->helper,
471 &card->func->dev);
472 if ((ret < 0) || !fw_helper) {
473 BT_ERR("request_firmware(helper) failed, error code = %d",
474 ret);
475 ret = -ENOENT;
476 goto done;
477 }
478
479 helper = fw_helper->data;
480 helperlen = fw_helper->size;
481
482 BT_DBG("Downloading helper image (%d bytes), block size %d bytes",
483 helperlen, SDIO_BLOCK_SIZE);
484
485 tmphlprbufsz = ALIGN_SZ(BTM_UPLD_SIZE, BTSDIO_DMA_ALIGN);
486
487 tmphlprbuf = kzalloc(tmphlprbufsz, GFP_KERNEL);
488 if (!tmphlprbuf) {
489 BT_ERR("Unable to allocate buffer for helper."
490 " Terminating download");
491 ret = -ENOMEM;
492 goto done;
493 }
494
495 helperbuf = (u8 *) ALIGN_ADDR(tmphlprbuf, BTSDIO_DMA_ALIGN);
496
497 /* Perform helper data transfer */
498 tx_len = (FIRMWARE_TRANSFER_NBLOCK * SDIO_BLOCK_SIZE)
499 - SDIO_HEADER_LEN;
500 hlprblknow = 0;
501
502 do {
503 ret = btmrvl_sdio_poll_card_status(card,
504 CARD_IO_READY | DN_LD_CARD_RDY);
505 if (ret < 0) {
506 BT_ERR("Helper download poll status timeout @ %d",
507 hlprblknow);
508 goto done;
509 }
510
511 /* Check if there is more data? */
512 if (hlprblknow >= helperlen)
513 break;
514
515 if (helperlen - hlprblknow < tx_len)
516 tx_len = helperlen - hlprblknow;
517
518 /* Little-endian */
519 helperbuf[0] = ((tx_len & 0x000000ff) >> 0);
520 helperbuf[1] = ((tx_len & 0x0000ff00) >> 8);
521 helperbuf[2] = ((tx_len & 0x00ff0000) >> 16);
522 helperbuf[3] = ((tx_len & 0xff000000) >> 24);
523
524 memcpy(&helperbuf[SDIO_HEADER_LEN], &helper[hlprblknow],
525 tx_len);
526
527 /* Now send the data */
528 ret = sdio_writesb(card->func, card->ioport, helperbuf,
529 FIRMWARE_TRANSFER_NBLOCK * SDIO_BLOCK_SIZE);
530 if (ret < 0) {
531 BT_ERR("IO error during helper download @ %d",
532 hlprblknow);
533 goto done;
534 }
535
536 hlprblknow += tx_len;
537 } while (true);
538
539 BT_DBG("Transferring helper image EOF block");
540
541 memset(helperbuf, 0x0, SDIO_BLOCK_SIZE);
542
543 ret = sdio_writesb(card->func, card->ioport, helperbuf,
544 SDIO_BLOCK_SIZE);
545 if (ret < 0) {
546 BT_ERR("IO error in writing helper image EOF block");
547 goto done;
548 }
549
550 ret = 0;
551
552done:
553 kfree(tmphlprbuf);
554 release_firmware(fw_helper);
555 return ret;
556}
557
558static int btmrvl_sdio_download_fw_w_helper(struct btmrvl_sdio_card *card)
559{
560 const struct firmware *fw_firmware = NULL;
561 const u8 *firmware = NULL;
562 int firmwarelen, tmpfwbufsz, ret;
563 unsigned int tries, offset;
564 u8 base0, base1;
565 void *tmpfwbuf = NULL;
566 u8 *fwbuf;
567 u16 len, blksz_dl = card->sd_blksz_fw_dl;
568 int txlen = 0, tx_blocks = 0, count = 0;
569
570 ret = request_firmware(&fw_firmware, card->firmware,
571 &card->func->dev);
572 if ((ret < 0) || !fw_firmware) {
573 BT_ERR("request_firmware(firmware) failed, error code = %d",
574 ret);
575 ret = -ENOENT;
576 goto done;
577 }
578
579 firmware = fw_firmware->data;
580 firmwarelen = fw_firmware->size;
581
582 BT_DBG("Downloading FW image (%d bytes)", firmwarelen);
583
584 tmpfwbufsz = ALIGN_SZ(BTM_UPLD_SIZE, BTSDIO_DMA_ALIGN);
585 tmpfwbuf = kzalloc(tmpfwbufsz, GFP_KERNEL);
586 if (!tmpfwbuf) {
587 BT_ERR("Unable to allocate buffer for firmware."
588 " Terminating download");
589 ret = -ENOMEM;
590 goto done;
591 }
592
593 /* Ensure aligned firmware buffer */
594 fwbuf = (u8 *) ALIGN_ADDR(tmpfwbuf, BTSDIO_DMA_ALIGN);
595
596 /* Perform firmware data transfer */
597 offset = 0;
598 do {
599 ret = btmrvl_sdio_poll_card_status(card,
600 CARD_IO_READY | DN_LD_CARD_RDY);
601 if (ret < 0) {
602 BT_ERR("FW download with helper poll status"
603 " timeout @ %d", offset);
604 goto done;
605 }
606
607 /* Check if there is more data ? */
608 if (offset >= firmwarelen)
609 break;
610
611 for (tries = 0; tries < MAX_POLL_TRIES; tries++) {
612 base0 = sdio_readb(card->func,
613 card->reg->sq_read_base_addr_a0, &ret);
614 if (ret) {
615 BT_ERR("BASE0 register read failed:"
616 " base0 = 0x%04X(%d)."
617 " Terminating download",
618 base0, base0);
619 ret = -EIO;
620 goto done;
621 }
622 base1 = sdio_readb(card->func,
623 card->reg->sq_read_base_addr_a1, &ret);
624 if (ret) {
625 BT_ERR("BASE1 register read failed:"
626 " base1 = 0x%04X(%d)."
627 " Terminating download",
628 base1, base1);
629 ret = -EIO;
630 goto done;
631 }
632
633 len = (((u16) base1) << 8) | base0;
634 if (len)
635 break;
636
637 udelay(10);
638 }
639
640 if (!len)
641 break;
642 else if (len > BTM_UPLD_SIZE) {
643 BT_ERR("FW download failure @%d, invalid length %d",
644 offset, len);
645 ret = -EINVAL;
646 goto done;
647 }
648
649 txlen = len;
650
651 if (len & BIT(0)) {
652 count++;
653 if (count > MAX_WRITE_IOMEM_RETRY) {
654 BT_ERR("FW download failure @%d, "
655 "over max retry count", offset);
656 ret = -EIO;
657 goto done;
658 }
659 BT_ERR("FW CRC error indicated by the helper: "
660 "len = 0x%04X, txlen = %d", len, txlen);
661 len &= ~BIT(0);
662 /* Set txlen to 0 so as to resend from same offset */
663 txlen = 0;
664 } else {
665 count = 0;
666
667 /* Last block ? */
668 if (firmwarelen - offset < txlen)
669 txlen = firmwarelen - offset;
670
671 tx_blocks = DIV_ROUND_UP(txlen, blksz_dl);
672
673 memcpy(fwbuf, &firmware[offset], txlen);
674 }
675
676 ret = sdio_writesb(card->func, card->ioport, fwbuf,
677 tx_blocks * blksz_dl);
678
679 if (ret < 0) {
680 BT_ERR("FW download, writesb(%d) failed @%d",
681 count, offset);
682 sdio_writeb(card->func, HOST_CMD53_FIN,
683 card->reg->cfg, &ret);
684 if (ret)
685 BT_ERR("writeb failed (CFG)");
686 }
687
688 offset += txlen;
689 } while (true);
690
691 BT_INFO("FW download over, size %d bytes", offset);
692
693 ret = 0;
694
695done:
696 kfree(tmpfwbuf);
697 release_firmware(fw_firmware);
698 return ret;
699}
700
701static int btmrvl_sdio_card_to_host(struct btmrvl_private *priv)
702{
703 u16 buf_len = 0;
704 int ret, num_blocks, blksz;
705 struct sk_buff *skb = NULL;
706 u32 type;
707 u8 *payload;
708 struct hci_dev *hdev = priv->btmrvl_dev.hcidev;
709 struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
710
711 if (!card || !card->func) {
712 BT_ERR("card or function is NULL!");
713 ret = -EINVAL;
714 goto exit;
715 }
716
717 /* Read the length of data to be transferred */
718 ret = btmrvl_sdio_read_rx_len(card, &buf_len);
719 if (ret < 0) {
720 BT_ERR("read rx_len failed");
721 ret = -EIO;
722 goto exit;
723 }
724
725 blksz = SDIO_BLOCK_SIZE;
726 num_blocks = DIV_ROUND_UP(buf_len, blksz);
727
728 if (buf_len <= SDIO_HEADER_LEN
729 || (num_blocks * blksz) > ALLOC_BUF_SIZE) {
730 BT_ERR("invalid packet length: %d", buf_len);
731 ret = -EINVAL;
732 goto exit;
733 }
734
735 /* Allocate buffer */
736 skb = bt_skb_alloc(num_blocks * blksz + BTSDIO_DMA_ALIGN, GFP_KERNEL);
737 if (!skb) {
738 BT_ERR("No free skb");
739 ret = -ENOMEM;
740 goto exit;
741 }
742
743 if ((unsigned long) skb->data & (BTSDIO_DMA_ALIGN - 1)) {
744 skb_put(skb, (unsigned long) skb->data &
745 (BTSDIO_DMA_ALIGN - 1));
746 skb_pull(skb, (unsigned long) skb->data &
747 (BTSDIO_DMA_ALIGN - 1));
748 }
749
750 payload = skb->data;
751
752 ret = sdio_readsb(card->func, payload, card->ioport,
753 num_blocks * blksz);
754 if (ret < 0) {
755 BT_ERR("readsb failed: %d", ret);
756 ret = -EIO;
757 goto exit;
758 }
759
760 /* This is SDIO specific header length: byte[2][1][0], type: byte[3]
761 * (HCI_COMMAND = 1, ACL_DATA = 2, SCO_DATA = 3, 0xFE = Vendor)
762 */
763
764 buf_len = payload[0];
765 buf_len |= payload[1] << 8;
766 buf_len |= payload[2] << 16;
767
768 if (buf_len > blksz * num_blocks) {
769 BT_ERR("Skip incorrect packet: hdrlen %d buffer %d",
770 buf_len, blksz * num_blocks);
771 ret = -EIO;
772 goto exit;
773 }
774
775 type = payload[3];
776
777 switch (type) {
778 case HCI_ACLDATA_PKT:
779 case HCI_SCODATA_PKT:
780 case HCI_EVENT_PKT:
781 hci_skb_pkt_type(skb) = type;
782 skb_put(skb, buf_len);
783 skb_pull(skb, SDIO_HEADER_LEN);
784
785 if (type == HCI_EVENT_PKT) {
786 if (btmrvl_check_evtpkt(priv, skb))
787 hci_recv_frame(hdev, skb);
788 } else {
789 hci_recv_frame(hdev, skb);
790 }
791
792 hdev->stat.byte_rx += buf_len;
793 break;
794
795 case MRVL_VENDOR_PKT:
796 hci_skb_pkt_type(skb) = HCI_VENDOR_PKT;
797 skb_put(skb, buf_len);
798 skb_pull(skb, SDIO_HEADER_LEN);
799
800 if (btmrvl_process_event(priv, skb))
801 hci_recv_frame(hdev, skb);
802
803 hdev->stat.byte_rx += buf_len;
804 break;
805
806 default:
807 BT_ERR("Unknown packet type:%d", type);
808 BT_ERR("hex: %*ph", blksz * num_blocks, payload);
809
810 kfree_skb(skb);
811 skb = NULL;
812 break;
813 }
814
815exit:
816 if (ret) {
817 hdev->stat.err_rx++;
818 kfree_skb(skb);
819 }
820
821 return ret;
822}
823
824static int btmrvl_sdio_process_int_status(struct btmrvl_private *priv)
825{
826 ulong flags;
827 u8 ireg;
828 struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
829
830 spin_lock_irqsave(&priv->driver_lock, flags);
831 ireg = sdio_ireg;
832 sdio_ireg = 0;
833 spin_unlock_irqrestore(&priv->driver_lock, flags);
834
835 sdio_claim_host(card->func);
836 if (ireg & DN_LD_HOST_INT_STATUS) {
837 if (priv->btmrvl_dev.tx_dnld_rdy)
838 BT_DBG("tx_done already received: "
839 " int_status=0x%x", ireg);
840 else
841 priv->btmrvl_dev.tx_dnld_rdy = true;
842 }
843
844 if (ireg & UP_LD_HOST_INT_STATUS)
845 btmrvl_sdio_card_to_host(priv);
846
847 sdio_release_host(card->func);
848
849 return 0;
850}
851
852static int btmrvl_sdio_read_to_clear(struct btmrvl_sdio_card *card, u8 *ireg)
853{
854 struct btmrvl_adapter *adapter = card->priv->adapter;
855 int ret;
856
857 ret = sdio_readsb(card->func, adapter->hw_regs, 0, SDIO_BLOCK_SIZE);
858 if (ret) {
859 BT_ERR("sdio_readsb: read int hw_regs failed: %d", ret);
860 return ret;
861 }
862
863 *ireg = adapter->hw_regs[card->reg->host_intstatus];
864 BT_DBG("hw_regs[%#x]=%#x", card->reg->host_intstatus, *ireg);
865
866 return 0;
867}
868
869static int btmrvl_sdio_write_to_clear(struct btmrvl_sdio_card *card, u8 *ireg)
870{
871 int ret;
872
873 *ireg = sdio_readb(card->func, card->reg->host_intstatus, &ret);
874 if (ret) {
875 BT_ERR("sdio_readb: read int status failed: %d", ret);
876 return ret;
877 }
878
879 if (*ireg) {
880 /*
881 * DN_LD_HOST_INT_STATUS and/or UP_LD_HOST_INT_STATUS
882 * Clear the interrupt status register and re-enable the
883 * interrupt.
884 */
885 BT_DBG("int_status = 0x%x", *ireg);
886
887 sdio_writeb(card->func, ~(*ireg) & (DN_LD_HOST_INT_STATUS |
888 UP_LD_HOST_INT_STATUS),
889 card->reg->host_intstatus, &ret);
890 if (ret) {
891 BT_ERR("sdio_writeb: clear int status failed: %d", ret);
892 return ret;
893 }
894 }
895
896 return 0;
897}
898
899static void btmrvl_sdio_interrupt(struct sdio_func *func)
900{
901 struct btmrvl_private *priv;
902 struct btmrvl_sdio_card *card;
903 ulong flags;
904 u8 ireg = 0;
905 int ret;
906
907 card = sdio_get_drvdata(func);
908 if (!card || !card->priv) {
909 BT_ERR("sbi_interrupt(%p) card or priv is NULL, card=%p",
910 func, card);
911 return;
912 }
913
914 priv = card->priv;
915
916 if (priv->surprise_removed)
917 return;
918
919 if (card->reg->int_read_to_clear)
920 ret = btmrvl_sdio_read_to_clear(card, &ireg);
921 else
922 ret = btmrvl_sdio_write_to_clear(card, &ireg);
923
924 if (ret)
925 return;
926
927 spin_lock_irqsave(&priv->driver_lock, flags);
928 sdio_ireg |= ireg;
929 spin_unlock_irqrestore(&priv->driver_lock, flags);
930
931 btmrvl_interrupt(priv);
932}
933
934static int btmrvl_sdio_register_dev(struct btmrvl_sdio_card *card)
935{
936 struct sdio_func *func;
937 u8 reg;
938 int ret;
939
940 if (!card || !card->func) {
941 BT_ERR("Error: card or function is NULL!");
942 ret = -EINVAL;
943 goto failed;
944 }
945
946 func = card->func;
947
948 sdio_claim_host(func);
949
950 ret = sdio_enable_func(func);
951 if (ret) {
952 BT_ERR("sdio_enable_func() failed: ret=%d", ret);
953 ret = -EIO;
954 goto release_host;
955 }
956
957 ret = sdio_claim_irq(func, btmrvl_sdio_interrupt);
958 if (ret) {
959 BT_ERR("sdio_claim_irq failed: ret=%d", ret);
960 ret = -EIO;
961 goto disable_func;
962 }
963
964 ret = sdio_set_block_size(card->func, SDIO_BLOCK_SIZE);
965 if (ret) {
966 BT_ERR("cannot set SDIO block size");
967 ret = -EIO;
968 goto release_irq;
969 }
970
971 reg = sdio_readb(func, card->reg->io_port_0, &ret);
972 if (ret < 0) {
973 ret = -EIO;
974 goto release_irq;
975 }
976
977 card->ioport = reg;
978
979 reg = sdio_readb(func, card->reg->io_port_1, &ret);
980 if (ret < 0) {
981 ret = -EIO;
982 goto release_irq;
983 }
984
985 card->ioport |= (reg << 8);
986
987 reg = sdio_readb(func, card->reg->io_port_2, &ret);
988 if (ret < 0) {
989 ret = -EIO;
990 goto release_irq;
991 }
992
993 card->ioport |= (reg << 16);
994
995 BT_DBG("SDIO FUNC%d IO port: 0x%x", func->num, card->ioport);
996
997 if (card->reg->int_read_to_clear) {
998 reg = sdio_readb(func, card->reg->host_int_rsr, &ret);
999 if (ret < 0) {
1000 ret = -EIO;
1001 goto release_irq;
1002 }
1003 sdio_writeb(func, reg | 0x3f, card->reg->host_int_rsr, &ret);
1004 if (ret < 0) {
1005 ret = -EIO;
1006 goto release_irq;
1007 }
1008
1009 reg = sdio_readb(func, card->reg->card_misc_cfg, &ret);
1010 if (ret < 0) {
1011 ret = -EIO;
1012 goto release_irq;
1013 }
1014 sdio_writeb(func, reg | 0x10, card->reg->card_misc_cfg, &ret);
1015 if (ret < 0) {
1016 ret = -EIO;
1017 goto release_irq;
1018 }
1019 }
1020
1021 sdio_set_drvdata(func, card);
1022
1023 sdio_release_host(func);
1024
1025 return 0;
1026
1027release_irq:
1028 sdio_release_irq(func);
1029
1030disable_func:
1031 sdio_disable_func(func);
1032
1033release_host:
1034 sdio_release_host(func);
1035
1036failed:
1037 return ret;
1038}
1039
1040static int btmrvl_sdio_unregister_dev(struct btmrvl_sdio_card *card)
1041{
1042 if (card && card->func) {
1043 sdio_claim_host(card->func);
1044 sdio_release_irq(card->func);
1045 sdio_disable_func(card->func);
1046 sdio_release_host(card->func);
1047 sdio_set_drvdata(card->func, NULL);
1048 }
1049
1050 return 0;
1051}
1052
1053static int btmrvl_sdio_enable_host_int(struct btmrvl_sdio_card *card)
1054{
1055 int ret;
1056
1057 if (!card || !card->func)
1058 return -EINVAL;
1059
1060 sdio_claim_host(card->func);
1061
1062 ret = btmrvl_sdio_enable_host_int_mask(card, HIM_ENABLE);
1063
1064 btmrvl_sdio_get_rx_unit(card);
1065
1066 sdio_release_host(card->func);
1067
1068 return ret;
1069}
1070
1071static int btmrvl_sdio_disable_host_int(struct btmrvl_sdio_card *card)
1072{
1073 int ret;
1074
1075 if (!card || !card->func)
1076 return -EINVAL;
1077
1078 sdio_claim_host(card->func);
1079
1080 ret = btmrvl_sdio_disable_host_int_mask(card, HIM_DISABLE);
1081
1082 sdio_release_host(card->func);
1083
1084 return ret;
1085}
1086
1087static int btmrvl_sdio_host_to_card(struct btmrvl_private *priv,
1088 u8 *payload, u16 nb)
1089{
1090 struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
1091 int ret = 0;
1092 int blksz;
1093 int i = 0;
1094 u8 *buf = NULL;
1095 void *tmpbuf = NULL;
1096 int tmpbufsz;
1097
1098 if (!card || !card->func) {
1099 BT_ERR("card or function is NULL!");
1100 return -EINVAL;
1101 }
1102
1103 blksz = DIV_ROUND_UP(nb, SDIO_BLOCK_SIZE) * SDIO_BLOCK_SIZE;
1104
1105 buf = payload;
1106 if ((unsigned long) payload & (BTSDIO_DMA_ALIGN - 1) ||
1107 nb < blksz) {
1108 tmpbufsz = ALIGN_SZ(blksz, BTSDIO_DMA_ALIGN) +
1109 BTSDIO_DMA_ALIGN;
1110 tmpbuf = kzalloc(tmpbufsz, GFP_KERNEL);
1111 if (!tmpbuf)
1112 return -ENOMEM;
1113 buf = (u8 *) ALIGN_ADDR(tmpbuf, BTSDIO_DMA_ALIGN);
1114 memcpy(buf, payload, nb);
1115 }
1116
1117 sdio_claim_host(card->func);
1118
1119 do {
1120 /* Transfer data to card */
1121 ret = sdio_writesb(card->func, card->ioport, buf,
1122 blksz);
1123 if (ret < 0) {
1124 i++;
1125 BT_ERR("i=%d writesb failed: %d", i, ret);
1126 BT_ERR("hex: %*ph", nb, payload);
1127 ret = -EIO;
1128 if (i > MAX_WRITE_IOMEM_RETRY)
1129 goto exit;
1130 }
1131 } while (ret);
1132
1133 priv->btmrvl_dev.tx_dnld_rdy = false;
1134
1135exit:
1136 sdio_release_host(card->func);
1137 kfree(tmpbuf);
1138
1139 return ret;
1140}
1141
1142static int btmrvl_sdio_download_fw(struct btmrvl_sdio_card *card)
1143{
1144 int ret;
1145 u8 fws0;
1146 int pollnum = MAX_POLL_TRIES;
1147
1148 if (!card || !card->func) {
1149 BT_ERR("card or function is NULL!");
1150 return -EINVAL;
1151 }
1152
1153 if (!btmrvl_sdio_verify_fw_download(card, 1)) {
1154 BT_DBG("Firmware already downloaded!");
1155 return 0;
1156 }
1157
1158 sdio_claim_host(card->func);
1159
1160 /* Check if other function driver is downloading the firmware */
1161 fws0 = sdio_readb(card->func, card->reg->card_fw_status0, &ret);
1162 if (ret) {
1163 BT_ERR("Failed to read FW downloading status!");
1164 ret = -EIO;
1165 goto done;
1166 }
1167 if (fws0) {
1168 BT_DBG("BT not the winner (%#x). Skip FW downloading", fws0);
1169
1170 /* Give other function more time to download the firmware */
1171 pollnum *= 10;
1172 } else {
1173 if (card->helper) {
1174 ret = btmrvl_sdio_download_helper(card);
1175 if (ret) {
1176 BT_ERR("Failed to download helper!");
1177 ret = -EIO;
1178 goto done;
1179 }
1180 }
1181
1182 if (btmrvl_sdio_download_fw_w_helper(card)) {
1183 BT_ERR("Failed to download firmware!");
1184 ret = -EIO;
1185 goto done;
1186 }
1187 }
1188
1189 /*
1190 * winner or not, with this test the FW synchronizes when the
1191 * module can continue its initialization
1192 */
1193 if (btmrvl_sdio_verify_fw_download(card, pollnum)) {
1194 BT_ERR("FW failed to be active in time!");
1195 ret = -ETIMEDOUT;
1196 goto done;
1197 }
1198
1199 sdio_release_host(card->func);
1200
1201 return 0;
1202
1203done:
1204 sdio_release_host(card->func);
1205 return ret;
1206}
1207
1208static int btmrvl_sdio_wakeup_fw(struct btmrvl_private *priv)
1209{
1210 struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
1211 int ret = 0;
1212
1213 if (!card || !card->func) {
1214 BT_ERR("card or function is NULL!");
1215 return -EINVAL;
1216 }
1217
1218 sdio_claim_host(card->func);
1219
1220 sdio_writeb(card->func, HOST_POWER_UP, card->reg->cfg, &ret);
1221
1222 sdio_release_host(card->func);
1223
1224 BT_DBG("wake up firmware");
1225
1226 return ret;
1227}
1228
1229static void btmrvl_sdio_dump_regs(struct btmrvl_private *priv)
1230{
1231 struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
1232 int ret = 0;
1233 unsigned int reg, reg_start, reg_end;
1234 char buf[256], *ptr;
1235 u8 loop, func, data;
1236 int MAX_LOOP = 2;
1237
1238 btmrvl_sdio_wakeup_fw(priv);
1239 sdio_claim_host(card->func);
1240
1241 for (loop = 0; loop < MAX_LOOP; loop++) {
1242 memset(buf, 0, sizeof(buf));
1243 ptr = buf;
1244
1245 if (loop == 0) {
1246 /* Read the registers of SDIO function0 */
1247 func = loop;
1248 reg_start = 0;
1249 reg_end = 9;
1250 } else {
1251 func = 2;
1252 reg_start = 0;
1253 reg_end = 0x09;
1254 }
1255
1256 ptr += sprintf(ptr, "SDIO Func%d (%#x-%#x): ",
1257 func, reg_start, reg_end);
1258 for (reg = reg_start; reg <= reg_end; reg++) {
1259 if (func == 0)
1260 data = sdio_f0_readb(card->func, reg, &ret);
1261 else
1262 data = sdio_readb(card->func, reg, &ret);
1263
1264 if (!ret) {
1265 ptr += sprintf(ptr, "%02x ", data);
1266 } else {
1267 ptr += sprintf(ptr, "ERR");
1268 break;
1269 }
1270 }
1271
1272 BT_INFO("%s", buf);
1273 }
1274
1275 sdio_release_host(card->func);
1276}
1277
1278/* This function read/write firmware */
1279static enum
1280rdwr_status btmrvl_sdio_rdwr_firmware(struct btmrvl_private *priv,
1281 u8 doneflag)
1282{
1283 struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
1284 int ret, tries;
1285 u8 ctrl_data = 0;
1286
1287 sdio_writeb(card->func, FW_DUMP_HOST_READY, card->reg->fw_dump_ctrl,
1288 &ret);
1289
1290 if (ret) {
1291 BT_ERR("SDIO write err");
1292 return RDWR_STATUS_FAILURE;
1293 }
1294
1295 for (tries = 0; tries < MAX_POLL_TRIES; tries++) {
1296 ctrl_data = sdio_readb(card->func, card->reg->fw_dump_ctrl,
1297 &ret);
1298
1299 if (ret) {
1300 BT_ERR("SDIO read err");
1301 return RDWR_STATUS_FAILURE;
1302 }
1303
1304 if (ctrl_data == FW_DUMP_DONE)
1305 break;
1306 if (doneflag && ctrl_data == doneflag)
1307 return RDWR_STATUS_DONE;
1308 if (ctrl_data != FW_DUMP_HOST_READY) {
1309 BT_INFO("The ctrl reg was changed, re-try again!");
1310 sdio_writeb(card->func, FW_DUMP_HOST_READY,
1311 card->reg->fw_dump_ctrl, &ret);
1312 if (ret) {
1313 BT_ERR("SDIO write err");
1314 return RDWR_STATUS_FAILURE;
1315 }
1316 }
1317 usleep_range(100, 200);
1318 }
1319
1320 if (ctrl_data == FW_DUMP_HOST_READY) {
1321 BT_ERR("Fail to pull ctrl_data");
1322 return RDWR_STATUS_FAILURE;
1323 }
1324
1325 return RDWR_STATUS_SUCCESS;
1326}
1327
1328/* This function dump sdio register and memory data */
1329static void btmrvl_sdio_coredump(struct device *dev)
1330{
1331 struct sdio_func *func = dev_to_sdio_func(dev);
1332 struct btmrvl_sdio_card *card;
1333 struct btmrvl_private *priv;
1334 int ret = 0;
1335 unsigned int reg, reg_start, reg_end;
1336 enum rdwr_status stat;
1337 u8 *dbg_ptr, *end_ptr, *fw_dump_data, *fw_dump_ptr;
1338 u8 dump_num = 0, idx, i, read_reg, doneflag = 0;
1339 u32 memory_size, fw_dump_len = 0;
1340 int size = 0;
1341
1342 card = sdio_get_drvdata(func);
1343 priv = card->priv;
1344
1345 /* dump sdio register first */
1346 btmrvl_sdio_dump_regs(priv);
1347
1348 if (!card->supports_fw_dump) {
1349 BT_ERR("Firmware dump not supported for this card!");
1350 return;
1351 }
1352
1353 for (idx = 0; idx < ARRAY_SIZE(mem_type_mapping_tbl); idx++) {
1354 struct memory_type_mapping *entry = &mem_type_mapping_tbl[idx];
1355
1356 if (entry->mem_ptr) {
1357 vfree(entry->mem_ptr);
1358 entry->mem_ptr = NULL;
1359 }
1360 entry->mem_size = 0;
1361 }
1362
1363 btmrvl_sdio_wakeup_fw(priv);
1364 sdio_claim_host(card->func);
1365
1366 BT_INFO("== btmrvl firmware dump start ==");
1367
1368 stat = btmrvl_sdio_rdwr_firmware(priv, doneflag);
1369 if (stat == RDWR_STATUS_FAILURE)
1370 goto done;
1371
1372 reg = card->reg->fw_dump_start;
1373 /* Read the number of the memories which will dump */
1374 dump_num = sdio_readb(card->func, reg, &ret);
1375
1376 if (ret) {
1377 BT_ERR("SDIO read memory length err");
1378 goto done;
1379 }
1380
1381 /* Read the length of every memory which will dump */
1382 for (idx = 0; idx < dump_num; idx++) {
1383 struct memory_type_mapping *entry = &mem_type_mapping_tbl[idx];
1384
1385 stat = btmrvl_sdio_rdwr_firmware(priv, doneflag);
1386 if (stat == RDWR_STATUS_FAILURE)
1387 goto done;
1388
1389 memory_size = 0;
1390 reg = card->reg->fw_dump_start;
1391 for (i = 0; i < 4; i++) {
1392 read_reg = sdio_readb(card->func, reg, &ret);
1393 if (ret) {
1394 BT_ERR("SDIO read err");
1395 goto done;
1396 }
1397 memory_size |= (read_reg << i*8);
1398 reg++;
1399 }
1400
1401 if (memory_size == 0) {
1402 BT_INFO("Firmware dump finished!");
1403 sdio_writeb(card->func, FW_DUMP_READ_DONE,
1404 card->reg->fw_dump_ctrl, &ret);
1405 if (ret) {
1406 BT_ERR("SDIO Write MEMDUMP_FINISH ERR");
1407 goto done;
1408 }
1409 break;
1410 }
1411
1412 BT_INFO("%s_SIZE=0x%x", entry->mem_name, memory_size);
1413 entry->mem_ptr = vzalloc(memory_size + 1);
1414 entry->mem_size = memory_size;
1415 if (!entry->mem_ptr) {
1416 BT_ERR("Vzalloc %s failed", entry->mem_name);
1417 goto done;
1418 }
1419
1420 fw_dump_len += (strlen("========Start dump ") +
1421 strlen(entry->mem_name) +
1422 strlen("========\n") +
1423 (memory_size + 1) +
1424 strlen("\n========End dump========\n"));
1425
1426 dbg_ptr = entry->mem_ptr;
1427 end_ptr = dbg_ptr + memory_size;
1428
1429 doneflag = entry->done_flag;
1430 BT_INFO("Start %s output, please wait...",
1431 entry->mem_name);
1432
1433 do {
1434 stat = btmrvl_sdio_rdwr_firmware(priv, doneflag);
1435 if (stat == RDWR_STATUS_FAILURE)
1436 goto done;
1437
1438 reg_start = card->reg->fw_dump_start;
1439 reg_end = card->reg->fw_dump_end;
1440 for (reg = reg_start; reg <= reg_end; reg++) {
1441 *dbg_ptr = sdio_readb(card->func, reg, &ret);
1442 if (ret) {
1443 BT_ERR("SDIO read err");
1444 goto done;
1445 }
1446 if (dbg_ptr < end_ptr)
1447 dbg_ptr++;
1448 else
1449 BT_ERR("Allocated buffer not enough");
1450 }
1451
1452 if (stat == RDWR_STATUS_DONE) {
1453 BT_INFO("%s done: size=0x%tx",
1454 entry->mem_name,
1455 dbg_ptr - entry->mem_ptr);
1456 break;
1457 }
1458 } while (1);
1459 }
1460
1461 BT_INFO("== btmrvl firmware dump end ==");
1462
1463done:
1464 sdio_release_host(card->func);
1465
1466 if (fw_dump_len == 0)
1467 return;
1468
1469 fw_dump_data = vzalloc(fw_dump_len + 1);
1470 if (!fw_dump_data) {
1471 BT_ERR("Vzalloc fw_dump_data fail!");
1472 return;
1473 }
1474 fw_dump_ptr = fw_dump_data;
1475
1476 /* Dump all the memory data into single file, a userspace script will
1477 * be used to split all the memory data to multiple files
1478 */
1479 BT_INFO("== btmrvl firmware dump to /sys/class/devcoredump start");
1480 for (idx = 0; idx < dump_num; idx++) {
1481 struct memory_type_mapping *entry = &mem_type_mapping_tbl[idx];
1482
1483 if (entry->mem_ptr) {
1484 size += scnprintf(fw_dump_ptr + size,
1485 fw_dump_len + 1 - size,
1486 "========Start dump %s========\n",
1487 entry->mem_name);
1488
1489 memcpy(fw_dump_ptr + size, entry->mem_ptr,
1490 entry->mem_size);
1491 size += entry->mem_size;
1492
1493 size += scnprintf(fw_dump_ptr + size,
1494 fw_dump_len + 1 - size,
1495 "\n========End dump========\n");
1496
1497 vfree(mem_type_mapping_tbl[idx].mem_ptr);
1498 mem_type_mapping_tbl[idx].mem_ptr = NULL;
1499 }
1500 }
1501
1502 /* fw_dump_data will be free in device coredump release function
1503 * after 5 min
1504 */
1505 dev_coredumpv(&card->func->dev, fw_dump_data, fw_dump_len, GFP_KERNEL);
1506 BT_INFO("== btmrvl firmware dump to /sys/class/devcoredump end");
1507}
1508
1509static int btmrvl_sdio_probe(struct sdio_func *func,
1510 const struct sdio_device_id *id)
1511{
1512 int ret = 0;
1513 struct btmrvl_private *priv = NULL;
1514 struct btmrvl_sdio_card *card = NULL;
1515
1516 BT_INFO("vendor=0x%x, device=0x%x, class=%d, fn=%d",
1517 id->vendor, id->device, id->class, func->num);
1518
1519 card = devm_kzalloc(&func->dev, sizeof(*card), GFP_KERNEL);
1520 if (!card)
1521 return -ENOMEM;
1522
1523 card->func = func;
1524
1525 if (id->driver_data) {
1526 struct btmrvl_sdio_device *data = (void *) id->driver_data;
1527 card->helper = data->helper;
1528 card->firmware = data->firmware;
1529 card->reg = data->reg;
1530 card->sd_blksz_fw_dl = data->sd_blksz_fw_dl;
1531 card->support_pscan_win_report = data->support_pscan_win_report;
1532 card->supports_fw_dump = data->supports_fw_dump;
1533 }
1534
1535 if (btmrvl_sdio_register_dev(card) < 0) {
1536 BT_ERR("Failed to register BT device!");
1537 return -ENODEV;
1538 }
1539
1540 /* Disable the interrupts on the card */
1541 btmrvl_sdio_disable_host_int(card);
1542
1543 if (btmrvl_sdio_download_fw(card)) {
1544 BT_ERR("Downloading firmware failed!");
1545 ret = -ENODEV;
1546 goto unreg_dev;
1547 }
1548
1549 btmrvl_sdio_enable_host_int(card);
1550
1551 /* Device tree node parsing and platform specific configuration*/
1552 btmrvl_sdio_probe_of(&func->dev, card);
1553
1554 priv = btmrvl_add_card(card);
1555 if (!priv) {
1556 BT_ERR("Initializing card failed!");
1557 ret = -ENODEV;
1558 goto disable_host_int;
1559 }
1560
1561 card->priv = priv;
1562
1563 /* Initialize the interface specific function pointers */
1564 priv->hw_host_to_card = btmrvl_sdio_host_to_card;
1565 priv->hw_wakeup_firmware = btmrvl_sdio_wakeup_fw;
1566 priv->hw_process_int_status = btmrvl_sdio_process_int_status;
1567
1568 if (btmrvl_register_hdev(priv)) {
1569 BT_ERR("Register hdev failed!");
1570 ret = -ENODEV;
1571 goto disable_host_int;
1572 }
1573
1574 return 0;
1575
1576disable_host_int:
1577 btmrvl_sdio_disable_host_int(card);
1578unreg_dev:
1579 btmrvl_sdio_unregister_dev(card);
1580 return ret;
1581}
1582
1583static void btmrvl_sdio_remove(struct sdio_func *func)
1584{
1585 struct btmrvl_sdio_card *card;
1586
1587 if (func) {
1588 card = sdio_get_drvdata(func);
1589 if (card) {
1590 /* Send SHUTDOWN command & disable interrupt
1591 * if user removes the module.
1592 */
1593 if (user_rmmod) {
1594 btmrvl_send_module_cfg_cmd(card->priv,
1595 MODULE_SHUTDOWN_REQ);
1596 btmrvl_sdio_disable_host_int(card);
1597 }
1598
1599 BT_DBG("unregister dev");
1600 card->priv->surprise_removed = true;
1601 btmrvl_sdio_unregister_dev(card);
1602 btmrvl_remove_card(card->priv);
1603 }
1604 }
1605}
1606
1607static int btmrvl_sdio_suspend(struct device *dev)
1608{
1609 struct sdio_func *func = dev_to_sdio_func(dev);
1610 struct btmrvl_sdio_card *card;
1611 struct btmrvl_private *priv;
1612 mmc_pm_flag_t pm_flags;
1613 struct hci_dev *hcidev;
1614
1615 if (func) {
1616 pm_flags = sdio_get_host_pm_caps(func);
1617 BT_DBG("%s: suspend: PM flags = 0x%x", sdio_func_id(func),
1618 pm_flags);
1619 if (!(pm_flags & MMC_PM_KEEP_POWER)) {
1620 BT_ERR("%s: cannot remain alive while suspended",
1621 sdio_func_id(func));
1622 return -ENOSYS;
1623 }
1624 card = sdio_get_drvdata(func);
1625 if (!card || !card->priv) {
1626 BT_ERR("card or priv structure is not valid");
1627 return 0;
1628 }
1629 } else {
1630 BT_ERR("sdio_func is not specified");
1631 return 0;
1632 }
1633
1634 /* Enable platform specific wakeup interrupt */
1635 if (card->plt_wake_cfg && card->plt_wake_cfg->irq_bt >= 0 &&
1636 device_may_wakeup(dev)) {
1637 card->plt_wake_cfg->wake_by_bt = false;
1638 enable_irq(card->plt_wake_cfg->irq_bt);
1639 enable_irq_wake(card->plt_wake_cfg->irq_bt);
1640 }
1641
1642 priv = card->priv;
1643 priv->adapter->is_suspending = true;
1644 hcidev = priv->btmrvl_dev.hcidev;
1645 BT_DBG("%s: SDIO suspend", hcidev->name);
1646 hci_suspend_dev(hcidev);
1647
1648 if (priv->adapter->hs_state != HS_ACTIVATED) {
1649 if (btmrvl_enable_hs(priv)) {
1650 BT_ERR("HS not activated, suspend failed!");
1651 /* Disable platform specific wakeup interrupt */
1652 if (card->plt_wake_cfg &&
1653 card->plt_wake_cfg->irq_bt >= 0 &&
1654 device_may_wakeup(dev)) {
1655 disable_irq_wake(card->plt_wake_cfg->irq_bt);
1656 disable_irq(card->plt_wake_cfg->irq_bt);
1657 }
1658
1659 priv->adapter->is_suspending = false;
1660 return -EBUSY;
1661 }
1662 }
1663
1664 priv->adapter->is_suspending = false;
1665 priv->adapter->is_suspended = true;
1666
1667 /* We will keep the power when hs enabled successfully */
1668 if (priv->adapter->hs_state == HS_ACTIVATED) {
1669 BT_DBG("suspend with MMC_PM_KEEP_POWER");
1670 return sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER);
1671 }
1672
1673 BT_DBG("suspend without MMC_PM_KEEP_POWER");
1674 return 0;
1675}
1676
1677static int btmrvl_sdio_resume(struct device *dev)
1678{
1679 struct sdio_func *func = dev_to_sdio_func(dev);
1680 struct btmrvl_sdio_card *card;
1681 struct btmrvl_private *priv;
1682 mmc_pm_flag_t pm_flags;
1683 struct hci_dev *hcidev;
1684
1685 if (func) {
1686 pm_flags = sdio_get_host_pm_caps(func);
1687 BT_DBG("%s: resume: PM flags = 0x%x", sdio_func_id(func),
1688 pm_flags);
1689 card = sdio_get_drvdata(func);
1690 if (!card || !card->priv) {
1691 BT_ERR("card or priv structure is not valid");
1692 return 0;
1693 }
1694 } else {
1695 BT_ERR("sdio_func is not specified");
1696 return 0;
1697 }
1698 priv = card->priv;
1699
1700 if (!priv->adapter->is_suspended) {
1701 BT_DBG("device already resumed");
1702 return 0;
1703 }
1704
1705 priv->hw_wakeup_firmware(priv);
1706 priv->adapter->hs_state = HS_DEACTIVATED;
1707 hcidev = priv->btmrvl_dev.hcidev;
1708 BT_DBG("%s: HS DEACTIVATED in resume!", hcidev->name);
1709 priv->adapter->is_suspended = false;
1710 BT_DBG("%s: SDIO resume", hcidev->name);
1711 hci_resume_dev(hcidev);
1712
1713 /* Disable platform specific wakeup interrupt */
1714 if (card->plt_wake_cfg && card->plt_wake_cfg->irq_bt >= 0 &&
1715 device_may_wakeup(dev)) {
1716 disable_irq_wake(card->plt_wake_cfg->irq_bt);
1717 disable_irq(card->plt_wake_cfg->irq_bt);
1718 if (card->plt_wake_cfg->wake_by_bt)
1719 /* Undo our disable, since interrupt handler already
1720 * did this.
1721 */
1722 enable_irq(card->plt_wake_cfg->irq_bt);
1723 }
1724
1725 return 0;
1726}
1727
1728static const struct dev_pm_ops btmrvl_sdio_pm_ops = {
1729 .suspend = btmrvl_sdio_suspend,
1730 .resume = btmrvl_sdio_resume,
1731};
1732
1733static struct sdio_driver bt_mrvl_sdio = {
1734 .name = "btmrvl_sdio",
1735 .id_table = btmrvl_sdio_ids,
1736 .probe = btmrvl_sdio_probe,
1737 .remove = btmrvl_sdio_remove,
1738 .drv = {
1739 .owner = THIS_MODULE,
1740 .coredump = btmrvl_sdio_coredump,
1741 .pm = &btmrvl_sdio_pm_ops,
1742 }
1743};
1744
1745static int __init btmrvl_sdio_init_module(void)
1746{
1747 if (sdio_register_driver(&bt_mrvl_sdio) != 0) {
1748 BT_ERR("SDIO Driver Registration Failed");
1749 return -ENODEV;
1750 }
1751
1752 /* Clear the flag in case user removes the card. */
1753 user_rmmod = 0;
1754
1755 return 0;
1756}
1757
1758static void __exit btmrvl_sdio_exit_module(void)
1759{
1760 /* Set the flag as user is removing this module. */
1761 user_rmmod = 1;
1762
1763 sdio_unregister_driver(&bt_mrvl_sdio);
1764}
1765
1766module_init(btmrvl_sdio_init_module);
1767module_exit(btmrvl_sdio_exit_module);
1768
1769MODULE_AUTHOR("Marvell International Ltd.");
1770MODULE_DESCRIPTION("Marvell BT-over-SDIO driver ver " VERSION);
1771MODULE_VERSION(VERSION);
1772MODULE_LICENSE("GPL v2");
1773MODULE_FIRMWARE("mrvl/sd8688_helper.bin");
1774MODULE_FIRMWARE("mrvl/sd8688.bin");
1775MODULE_FIRMWARE("mrvl/sd8787_uapsta.bin");
1776MODULE_FIRMWARE("mrvl/sd8797_uapsta.bin");
1777MODULE_FIRMWARE("mrvl/sd8887_uapsta.bin");
1778MODULE_FIRMWARE("mrvl/sd8897_uapsta.bin");
1779MODULE_FIRMWARE("mrvl/sdsd8977_combo_v2.bin");
1780MODULE_FIRMWARE("mrvl/sd8987_uapsta.bin");
1781MODULE_FIRMWARE("mrvl/sdsd8997_combo_v4.bin");