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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");
1/**
2 * Marvell BT-over-SDIO driver: SDIO interface related functions.
3 *
4 * Copyright (C) 2009, Marvell International Ltd.
5 *
6 * This software file (the "File") is distributed by Marvell International
7 * Ltd. under the terms of the GNU General Public License Version 2, June 1991
8 * (the "License"). You may use, redistribute and/or modify this File in
9 * accordance with the terms and conditions of the License, a copy of which
10 * is available by writing to the Free Software Foundation, Inc.,
11 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
12 * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
13 *
14 *
15 * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
17 * ARE EXPRESSLY DISCLAIMED. The License provides additional details about
18 * this warranty disclaimer.
19 **/
20
21#include <linux/firmware.h>
22#include <linux/slab.h>
23#include <linux/suspend.h>
24
25#include <linux/mmc/sdio_ids.h>
26#include <linux/mmc/sdio_func.h>
27#include <linux/module.h>
28#include <linux/devcoredump.h>
29
30#include <net/bluetooth/bluetooth.h>
31#include <net/bluetooth/hci_core.h>
32
33#include "btmrvl_drv.h"
34#include "btmrvl_sdio.h"
35
36#define VERSION "1.0"
37
38static struct memory_type_mapping mem_type_mapping_tbl[] = {
39 {"ITCM", NULL, 0, 0xF0},
40 {"DTCM", NULL, 0, 0xF1},
41 {"SQRAM", NULL, 0, 0xF2},
42 {"APU", NULL, 0, 0xF3},
43 {"CIU", NULL, 0, 0xF4},
44 {"ICU", NULL, 0, 0xF5},
45 {"MAC", NULL, 0, 0xF6},
46 {"EXT7", NULL, 0, 0xF7},
47 {"EXT8", NULL, 0, 0xF8},
48 {"EXT9", NULL, 0, 0xF9},
49 {"EXT10", NULL, 0, 0xFA},
50 {"EXT11", NULL, 0, 0xFB},
51 {"EXT12", NULL, 0, 0xFC},
52 {"EXT13", NULL, 0, 0xFD},
53 {"EXTLAST", NULL, 0, 0xFE},
54};
55
56static const struct of_device_id btmrvl_sdio_of_match_table[] = {
57 { .compatible = "marvell,sd8897-bt" },
58 { .compatible = "marvell,sd8997-bt" },
59 { }
60};
61
62static irqreturn_t btmrvl_wake_irq_bt(int irq, void *priv)
63{
64 struct btmrvl_sdio_card *card = priv;
65 struct device *dev = &card->func->dev;
66 struct btmrvl_plt_wake_cfg *cfg = card->plt_wake_cfg;
67
68 dev_info(dev, "wake by bt\n");
69 cfg->wake_by_bt = true;
70 disable_irq_nosync(irq);
71
72 pm_wakeup_event(dev, 0);
73 pm_system_wakeup();
74
75 return IRQ_HANDLED;
76}
77
78/* This function parses device tree node using mmc subnode devicetree API.
79 * The device node is saved in card->plt_of_node.
80 * If the device tree node exists and includes interrupts attributes, this
81 * function will request platform specific wakeup interrupt.
82 */
83static int btmrvl_sdio_probe_of(struct device *dev,
84 struct btmrvl_sdio_card *card)
85{
86 struct btmrvl_plt_wake_cfg *cfg;
87 int ret;
88
89 if (!dev->of_node ||
90 !of_match_node(btmrvl_sdio_of_match_table, dev->of_node)) {
91 dev_info(dev, "sdio device tree data not available\n");
92 return -1;
93 }
94
95 card->plt_of_node = dev->of_node;
96
97 card->plt_wake_cfg = devm_kzalloc(dev, sizeof(*card->plt_wake_cfg),
98 GFP_KERNEL);
99 cfg = card->plt_wake_cfg;
100 if (cfg && card->plt_of_node) {
101 cfg->irq_bt = irq_of_parse_and_map(card->plt_of_node, 0);
102 if (!cfg->irq_bt) {
103 dev_err(dev, "fail to parse irq_bt from device tree\n");
104 cfg->irq_bt = -1;
105 } else {
106 ret = devm_request_irq(dev, cfg->irq_bt,
107 btmrvl_wake_irq_bt,
108 0, "bt_wake", card);
109 if (ret) {
110 dev_err(dev,
111 "Failed to request irq_bt %d (%d)\n",
112 cfg->irq_bt, ret);
113 }
114
115 /* Configure wakeup (enabled by default) */
116 device_init_wakeup(dev, true);
117 disable_irq(cfg->irq_bt);
118 }
119 }
120
121 return 0;
122}
123
124/* The btmrvl_sdio_remove() callback function is called
125 * when user removes this module from kernel space or ejects
126 * the card from the slot. The driver handles these 2 cases
127 * differently.
128 * If the user is removing the module, a MODULE_SHUTDOWN_REQ
129 * command is sent to firmware and interrupt will be disabled.
130 * If the card is removed, there is no need to send command
131 * or disable interrupt.
132 *
133 * The variable 'user_rmmod' is used to distinguish these two
134 * scenarios. This flag is initialized as FALSE in case the card
135 * is removed, and will be set to TRUE for module removal when
136 * module_exit function is called.
137 */
138static u8 user_rmmod;
139static u8 sdio_ireg;
140
141static const struct btmrvl_sdio_card_reg btmrvl_reg_8688 = {
142 .cfg = 0x03,
143 .host_int_mask = 0x04,
144 .host_intstatus = 0x05,
145 .card_status = 0x20,
146 .sq_read_base_addr_a0 = 0x10,
147 .sq_read_base_addr_a1 = 0x11,
148 .card_fw_status0 = 0x40,
149 .card_fw_status1 = 0x41,
150 .card_rx_len = 0x42,
151 .card_rx_unit = 0x43,
152 .io_port_0 = 0x00,
153 .io_port_1 = 0x01,
154 .io_port_2 = 0x02,
155 .int_read_to_clear = false,
156};
157static const struct btmrvl_sdio_card_reg btmrvl_reg_87xx = {
158 .cfg = 0x00,
159 .host_int_mask = 0x02,
160 .host_intstatus = 0x03,
161 .card_status = 0x30,
162 .sq_read_base_addr_a0 = 0x40,
163 .sq_read_base_addr_a1 = 0x41,
164 .card_revision = 0x5c,
165 .card_fw_status0 = 0x60,
166 .card_fw_status1 = 0x61,
167 .card_rx_len = 0x62,
168 .card_rx_unit = 0x63,
169 .io_port_0 = 0x78,
170 .io_port_1 = 0x79,
171 .io_port_2 = 0x7a,
172 .int_read_to_clear = false,
173};
174
175static const struct btmrvl_sdio_card_reg btmrvl_reg_8887 = {
176 .cfg = 0x00,
177 .host_int_mask = 0x08,
178 .host_intstatus = 0x0C,
179 .card_status = 0x5C,
180 .sq_read_base_addr_a0 = 0x6C,
181 .sq_read_base_addr_a1 = 0x6D,
182 .card_revision = 0xC8,
183 .card_fw_status0 = 0x88,
184 .card_fw_status1 = 0x89,
185 .card_rx_len = 0x8A,
186 .card_rx_unit = 0x8B,
187 .io_port_0 = 0xE4,
188 .io_port_1 = 0xE5,
189 .io_port_2 = 0xE6,
190 .int_read_to_clear = true,
191 .host_int_rsr = 0x04,
192 .card_misc_cfg = 0xD8,
193};
194
195static const struct btmrvl_sdio_card_reg btmrvl_reg_8897 = {
196 .cfg = 0x00,
197 .host_int_mask = 0x02,
198 .host_intstatus = 0x03,
199 .card_status = 0x50,
200 .sq_read_base_addr_a0 = 0x60,
201 .sq_read_base_addr_a1 = 0x61,
202 .card_revision = 0xbc,
203 .card_fw_status0 = 0xc0,
204 .card_fw_status1 = 0xc1,
205 .card_rx_len = 0xc2,
206 .card_rx_unit = 0xc3,
207 .io_port_0 = 0xd8,
208 .io_port_1 = 0xd9,
209 .io_port_2 = 0xda,
210 .int_read_to_clear = true,
211 .host_int_rsr = 0x01,
212 .card_misc_cfg = 0xcc,
213 .fw_dump_ctrl = 0xe2,
214 .fw_dump_start = 0xe3,
215 .fw_dump_end = 0xea,
216};
217
218static const struct btmrvl_sdio_card_reg btmrvl_reg_89xx = {
219 .cfg = 0x00,
220 .host_int_mask = 0x08,
221 .host_intstatus = 0x0c,
222 .card_status = 0x5c,
223 .sq_read_base_addr_a0 = 0xf8,
224 .sq_read_base_addr_a1 = 0xf9,
225 .card_revision = 0xc8,
226 .card_fw_status0 = 0xe8,
227 .card_fw_status1 = 0xe9,
228 .card_rx_len = 0xea,
229 .card_rx_unit = 0xeb,
230 .io_port_0 = 0xe4,
231 .io_port_1 = 0xe5,
232 .io_port_2 = 0xe6,
233 .int_read_to_clear = true,
234 .host_int_rsr = 0x04,
235 .card_misc_cfg = 0xd8,
236 .fw_dump_ctrl = 0xf0,
237 .fw_dump_start = 0xf1,
238 .fw_dump_end = 0xf8,
239};
240
241static const struct btmrvl_sdio_device btmrvl_sdio_sd8688 = {
242 .helper = "mrvl/sd8688_helper.bin",
243 .firmware = "mrvl/sd8688.bin",
244 .reg = &btmrvl_reg_8688,
245 .support_pscan_win_report = false,
246 .sd_blksz_fw_dl = 64,
247 .supports_fw_dump = false,
248};
249
250static const struct btmrvl_sdio_device btmrvl_sdio_sd8787 = {
251 .helper = NULL,
252 .firmware = "mrvl/sd8787_uapsta.bin",
253 .reg = &btmrvl_reg_87xx,
254 .support_pscan_win_report = false,
255 .sd_blksz_fw_dl = 256,
256 .supports_fw_dump = false,
257};
258
259static const struct btmrvl_sdio_device btmrvl_sdio_sd8797 = {
260 .helper = NULL,
261 .firmware = "mrvl/sd8797_uapsta.bin",
262 .reg = &btmrvl_reg_87xx,
263 .support_pscan_win_report = false,
264 .sd_blksz_fw_dl = 256,
265 .supports_fw_dump = false,
266};
267
268static const struct btmrvl_sdio_device btmrvl_sdio_sd8887 = {
269 .helper = NULL,
270 .firmware = "mrvl/sd8887_uapsta.bin",
271 .reg = &btmrvl_reg_8887,
272 .support_pscan_win_report = true,
273 .sd_blksz_fw_dl = 256,
274 .supports_fw_dump = false,
275};
276
277static const struct btmrvl_sdio_device btmrvl_sdio_sd8897 = {
278 .helper = NULL,
279 .firmware = "mrvl/sd8897_uapsta.bin",
280 .reg = &btmrvl_reg_8897,
281 .support_pscan_win_report = true,
282 .sd_blksz_fw_dl = 256,
283 .supports_fw_dump = true,
284};
285
286static const struct btmrvl_sdio_device btmrvl_sdio_sd8977 = {
287 .helper = NULL,
288 .firmware = "mrvl/sdsd8977_combo_v2.bin",
289 .reg = &btmrvl_reg_89xx,
290 .support_pscan_win_report = true,
291 .sd_blksz_fw_dl = 256,
292 .supports_fw_dump = true,
293};
294
295static const struct btmrvl_sdio_device btmrvl_sdio_sd8987 = {
296 .helper = NULL,
297 .firmware = "mrvl/sd8987_uapsta.bin",
298 .reg = &btmrvl_reg_89xx,
299 .support_pscan_win_report = true,
300 .sd_blksz_fw_dl = 256,
301 .supports_fw_dump = true,
302};
303
304static const struct btmrvl_sdio_device btmrvl_sdio_sd8997 = {
305 .helper = NULL,
306 .firmware = "mrvl/sdsd8997_combo_v4.bin",
307 .reg = &btmrvl_reg_89xx,
308 .support_pscan_win_report = true,
309 .sd_blksz_fw_dl = 256,
310 .supports_fw_dump = true,
311};
312
313static const struct sdio_device_id btmrvl_sdio_ids[] = {
314 /* Marvell SD8688 Bluetooth device */
315 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8688_BT),
316 .driver_data = (unsigned long)&btmrvl_sdio_sd8688 },
317 /* Marvell SD8787 Bluetooth device */
318 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8787_BT),
319 .driver_data = (unsigned long)&btmrvl_sdio_sd8787 },
320 /* Marvell SD8787 Bluetooth AMP device */
321 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8787_BT_AMP),
322 .driver_data = (unsigned long)&btmrvl_sdio_sd8787 },
323 /* Marvell SD8797 Bluetooth device */
324 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8797_BT),
325 .driver_data = (unsigned long)&btmrvl_sdio_sd8797 },
326 /* Marvell SD8887 Bluetooth device */
327 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8887_BT),
328 .driver_data = (unsigned long)&btmrvl_sdio_sd8887 },
329 /* Marvell SD8897 Bluetooth device */
330 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8897_BT),
331 .driver_data = (unsigned long)&btmrvl_sdio_sd8897 },
332 /* Marvell SD8977 Bluetooth device */
333 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8977_BT),
334 .driver_data = (unsigned long)&btmrvl_sdio_sd8977 },
335 /* Marvell SD8987 Bluetooth device */
336 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8987_BT),
337 .driver_data = (unsigned long)&btmrvl_sdio_sd8987 },
338 /* Marvell SD8997 Bluetooth device */
339 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8997_BT),
340 .driver_data = (unsigned long)&btmrvl_sdio_sd8997 },
341
342 { } /* Terminating entry */
343};
344
345MODULE_DEVICE_TABLE(sdio, btmrvl_sdio_ids);
346
347static int btmrvl_sdio_get_rx_unit(struct btmrvl_sdio_card *card)
348{
349 u8 reg;
350 int ret;
351
352 reg = sdio_readb(card->func, card->reg->card_rx_unit, &ret);
353 if (!ret)
354 card->rx_unit = reg;
355
356 return ret;
357}
358
359static int btmrvl_sdio_read_fw_status(struct btmrvl_sdio_card *card, u16 *dat)
360{
361 u8 fws0, fws1;
362 int ret;
363
364 *dat = 0;
365
366 fws0 = sdio_readb(card->func, card->reg->card_fw_status0, &ret);
367 if (ret)
368 return -EIO;
369
370 fws1 = sdio_readb(card->func, card->reg->card_fw_status1, &ret);
371 if (ret)
372 return -EIO;
373
374 *dat = (((u16) fws1) << 8) | fws0;
375
376 return 0;
377}
378
379static int btmrvl_sdio_read_rx_len(struct btmrvl_sdio_card *card, u16 *dat)
380{
381 u8 reg;
382 int ret;
383
384 reg = sdio_readb(card->func, card->reg->card_rx_len, &ret);
385 if (!ret)
386 *dat = (u16) reg << card->rx_unit;
387
388 return ret;
389}
390
391static int btmrvl_sdio_enable_host_int_mask(struct btmrvl_sdio_card *card,
392 u8 mask)
393{
394 int ret;
395
396 sdio_writeb(card->func, mask, card->reg->host_int_mask, &ret);
397 if (ret) {
398 BT_ERR("Unable to enable the host interrupt!");
399 ret = -EIO;
400 }
401
402 return ret;
403}
404
405static int btmrvl_sdio_disable_host_int_mask(struct btmrvl_sdio_card *card,
406 u8 mask)
407{
408 u8 host_int_mask;
409 int ret;
410
411 host_int_mask = sdio_readb(card->func, card->reg->host_int_mask, &ret);
412 if (ret)
413 return -EIO;
414
415 host_int_mask &= ~mask;
416
417 sdio_writeb(card->func, host_int_mask, card->reg->host_int_mask, &ret);
418 if (ret < 0) {
419 BT_ERR("Unable to disable the host interrupt!");
420 return -EIO;
421 }
422
423 return 0;
424}
425
426static int btmrvl_sdio_poll_card_status(struct btmrvl_sdio_card *card, u8 bits)
427{
428 unsigned int tries;
429 u8 status;
430 int ret;
431
432 for (tries = 0; tries < MAX_POLL_TRIES * 1000; tries++) {
433 status = sdio_readb(card->func, card->reg->card_status, &ret);
434 if (ret)
435 goto failed;
436 if ((status & bits) == bits)
437 return ret;
438
439 udelay(1);
440 }
441
442 ret = -ETIMEDOUT;
443
444failed:
445 BT_ERR("FAILED! ret=%d", ret);
446
447 return ret;
448}
449
450static int btmrvl_sdio_verify_fw_download(struct btmrvl_sdio_card *card,
451 int pollnum)
452{
453 u16 firmwarestat;
454 int tries, ret;
455
456 /* Wait for firmware to become ready */
457 for (tries = 0; tries < pollnum; tries++) {
458 sdio_claim_host(card->func);
459 ret = btmrvl_sdio_read_fw_status(card, &firmwarestat);
460 sdio_release_host(card->func);
461 if (ret < 0)
462 continue;
463
464 if (firmwarestat == FIRMWARE_READY)
465 return 0;
466
467 msleep(100);
468 }
469
470 return -ETIMEDOUT;
471}
472
473static int btmrvl_sdio_download_helper(struct btmrvl_sdio_card *card)
474{
475 const struct firmware *fw_helper = NULL;
476 const u8 *helper = NULL;
477 int ret;
478 void *tmphlprbuf = NULL;
479 int tmphlprbufsz, hlprblknow, helperlen;
480 u8 *helperbuf;
481 u32 tx_len;
482
483 ret = request_firmware(&fw_helper, card->helper,
484 &card->func->dev);
485 if ((ret < 0) || !fw_helper) {
486 BT_ERR("request_firmware(helper) failed, error code = %d",
487 ret);
488 ret = -ENOENT;
489 goto done;
490 }
491
492 helper = fw_helper->data;
493 helperlen = fw_helper->size;
494
495 BT_DBG("Downloading helper image (%d bytes), block size %d bytes",
496 helperlen, SDIO_BLOCK_SIZE);
497
498 tmphlprbufsz = ALIGN_SZ(BTM_UPLD_SIZE, BTSDIO_DMA_ALIGN);
499
500 tmphlprbuf = kzalloc(tmphlprbufsz, GFP_KERNEL);
501 if (!tmphlprbuf) {
502 BT_ERR("Unable to allocate buffer for helper."
503 " Terminating download");
504 ret = -ENOMEM;
505 goto done;
506 }
507
508 helperbuf = (u8 *) ALIGN_ADDR(tmphlprbuf, BTSDIO_DMA_ALIGN);
509
510 /* Perform helper data transfer */
511 tx_len = (FIRMWARE_TRANSFER_NBLOCK * SDIO_BLOCK_SIZE)
512 - SDIO_HEADER_LEN;
513 hlprblknow = 0;
514
515 do {
516 ret = btmrvl_sdio_poll_card_status(card,
517 CARD_IO_READY | DN_LD_CARD_RDY);
518 if (ret < 0) {
519 BT_ERR("Helper download poll status timeout @ %d",
520 hlprblknow);
521 goto done;
522 }
523
524 /* Check if there is more data? */
525 if (hlprblknow >= helperlen)
526 break;
527
528 if (helperlen - hlprblknow < tx_len)
529 tx_len = helperlen - hlprblknow;
530
531 /* Little-endian */
532 helperbuf[0] = ((tx_len & 0x000000ff) >> 0);
533 helperbuf[1] = ((tx_len & 0x0000ff00) >> 8);
534 helperbuf[2] = ((tx_len & 0x00ff0000) >> 16);
535 helperbuf[3] = ((tx_len & 0xff000000) >> 24);
536
537 memcpy(&helperbuf[SDIO_HEADER_LEN], &helper[hlprblknow],
538 tx_len);
539
540 /* Now send the data */
541 ret = sdio_writesb(card->func, card->ioport, helperbuf,
542 FIRMWARE_TRANSFER_NBLOCK * SDIO_BLOCK_SIZE);
543 if (ret < 0) {
544 BT_ERR("IO error during helper download @ %d",
545 hlprblknow);
546 goto done;
547 }
548
549 hlprblknow += tx_len;
550 } while (true);
551
552 BT_DBG("Transferring helper image EOF block");
553
554 memset(helperbuf, 0x0, SDIO_BLOCK_SIZE);
555
556 ret = sdio_writesb(card->func, card->ioport, helperbuf,
557 SDIO_BLOCK_SIZE);
558 if (ret < 0) {
559 BT_ERR("IO error in writing helper image EOF block");
560 goto done;
561 }
562
563 ret = 0;
564
565done:
566 kfree(tmphlprbuf);
567 release_firmware(fw_helper);
568 return ret;
569}
570
571static int btmrvl_sdio_download_fw_w_helper(struct btmrvl_sdio_card *card)
572{
573 const struct firmware *fw_firmware = NULL;
574 const u8 *firmware = NULL;
575 int firmwarelen, tmpfwbufsz, ret;
576 unsigned int tries, offset;
577 u8 base0, base1;
578 void *tmpfwbuf = NULL;
579 u8 *fwbuf;
580 u16 len, blksz_dl = card->sd_blksz_fw_dl;
581 int txlen = 0, tx_blocks = 0, count = 0;
582
583 ret = request_firmware(&fw_firmware, card->firmware,
584 &card->func->dev);
585 if ((ret < 0) || !fw_firmware) {
586 BT_ERR("request_firmware(firmware) failed, error code = %d",
587 ret);
588 ret = -ENOENT;
589 goto done;
590 }
591
592 firmware = fw_firmware->data;
593 firmwarelen = fw_firmware->size;
594
595 BT_DBG("Downloading FW image (%d bytes)", firmwarelen);
596
597 tmpfwbufsz = ALIGN_SZ(BTM_UPLD_SIZE, BTSDIO_DMA_ALIGN);
598 tmpfwbuf = kzalloc(tmpfwbufsz, GFP_KERNEL);
599 if (!tmpfwbuf) {
600 BT_ERR("Unable to allocate buffer for firmware."
601 " Terminating download");
602 ret = -ENOMEM;
603 goto done;
604 }
605
606 /* Ensure aligned firmware buffer */
607 fwbuf = (u8 *) ALIGN_ADDR(tmpfwbuf, BTSDIO_DMA_ALIGN);
608
609 /* Perform firmware data transfer */
610 offset = 0;
611 do {
612 ret = btmrvl_sdio_poll_card_status(card,
613 CARD_IO_READY | DN_LD_CARD_RDY);
614 if (ret < 0) {
615 BT_ERR("FW download with helper poll status"
616 " timeout @ %d", offset);
617 goto done;
618 }
619
620 /* Check if there is more data ? */
621 if (offset >= firmwarelen)
622 break;
623
624 for (tries = 0; tries < MAX_POLL_TRIES; tries++) {
625 base0 = sdio_readb(card->func,
626 card->reg->sq_read_base_addr_a0, &ret);
627 if (ret) {
628 BT_ERR("BASE0 register read failed:"
629 " base0 = 0x%04X(%d)."
630 " Terminating download",
631 base0, base0);
632 ret = -EIO;
633 goto done;
634 }
635 base1 = sdio_readb(card->func,
636 card->reg->sq_read_base_addr_a1, &ret);
637 if (ret) {
638 BT_ERR("BASE1 register read failed:"
639 " base1 = 0x%04X(%d)."
640 " Terminating download",
641 base1, base1);
642 ret = -EIO;
643 goto done;
644 }
645
646 len = (((u16) base1) << 8) | base0;
647 if (len)
648 break;
649
650 udelay(10);
651 }
652
653 if (!len)
654 break;
655 else if (len > BTM_UPLD_SIZE) {
656 BT_ERR("FW download failure @%d, invalid length %d",
657 offset, len);
658 ret = -EINVAL;
659 goto done;
660 }
661
662 txlen = len;
663
664 if (len & BIT(0)) {
665 count++;
666 if (count > MAX_WRITE_IOMEM_RETRY) {
667 BT_ERR("FW download failure @%d, "
668 "over max retry count", offset);
669 ret = -EIO;
670 goto done;
671 }
672 BT_ERR("FW CRC error indicated by the helper: "
673 "len = 0x%04X, txlen = %d", len, txlen);
674 len &= ~BIT(0);
675 /* Set txlen to 0 so as to resend from same offset */
676 txlen = 0;
677 } else {
678 count = 0;
679
680 /* Last block ? */
681 if (firmwarelen - offset < txlen)
682 txlen = firmwarelen - offset;
683
684 tx_blocks = DIV_ROUND_UP(txlen, blksz_dl);
685
686 memcpy(fwbuf, &firmware[offset], txlen);
687 }
688
689 ret = sdio_writesb(card->func, card->ioport, fwbuf,
690 tx_blocks * blksz_dl);
691
692 if (ret < 0) {
693 BT_ERR("FW download, writesb(%d) failed @%d",
694 count, offset);
695 sdio_writeb(card->func, HOST_CMD53_FIN,
696 card->reg->cfg, &ret);
697 if (ret)
698 BT_ERR("writeb failed (CFG)");
699 }
700
701 offset += txlen;
702 } while (true);
703
704 BT_INFO("FW download over, size %d bytes", offset);
705
706 ret = 0;
707
708done:
709 kfree(tmpfwbuf);
710 release_firmware(fw_firmware);
711 return ret;
712}
713
714static int btmrvl_sdio_card_to_host(struct btmrvl_private *priv)
715{
716 u16 buf_len = 0;
717 int ret, num_blocks, blksz;
718 struct sk_buff *skb = NULL;
719 u32 type;
720 u8 *payload;
721 struct hci_dev *hdev = priv->btmrvl_dev.hcidev;
722 struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
723
724 if (!card || !card->func) {
725 BT_ERR("card or function is NULL!");
726 ret = -EINVAL;
727 goto exit;
728 }
729
730 /* Read the length of data to be transferred */
731 ret = btmrvl_sdio_read_rx_len(card, &buf_len);
732 if (ret < 0) {
733 BT_ERR("read rx_len failed");
734 ret = -EIO;
735 goto exit;
736 }
737
738 blksz = SDIO_BLOCK_SIZE;
739 num_blocks = DIV_ROUND_UP(buf_len, blksz);
740
741 if (buf_len <= SDIO_HEADER_LEN
742 || (num_blocks * blksz) > ALLOC_BUF_SIZE) {
743 BT_ERR("invalid packet length: %d", buf_len);
744 ret = -EINVAL;
745 goto exit;
746 }
747
748 /* Allocate buffer */
749 skb = bt_skb_alloc(num_blocks * blksz + BTSDIO_DMA_ALIGN, GFP_KERNEL);
750 if (!skb) {
751 BT_ERR("No free skb");
752 ret = -ENOMEM;
753 goto exit;
754 }
755
756 if ((unsigned long) skb->data & (BTSDIO_DMA_ALIGN - 1)) {
757 skb_put(skb, (unsigned long) skb->data &
758 (BTSDIO_DMA_ALIGN - 1));
759 skb_pull(skb, (unsigned long) skb->data &
760 (BTSDIO_DMA_ALIGN - 1));
761 }
762
763 payload = skb->data;
764
765 ret = sdio_readsb(card->func, payload, card->ioport,
766 num_blocks * blksz);
767 if (ret < 0) {
768 BT_ERR("readsb failed: %d", ret);
769 ret = -EIO;
770 goto exit;
771 }
772
773 /* This is SDIO specific header length: byte[2][1][0], type: byte[3]
774 * (HCI_COMMAND = 1, ACL_DATA = 2, SCO_DATA = 3, 0xFE = Vendor)
775 */
776
777 buf_len = payload[0];
778 buf_len |= payload[1] << 8;
779 buf_len |= payload[2] << 16;
780
781 if (buf_len > blksz * num_blocks) {
782 BT_ERR("Skip incorrect packet: hdrlen %d buffer %d",
783 buf_len, blksz * num_blocks);
784 ret = -EIO;
785 goto exit;
786 }
787
788 type = payload[3];
789
790 switch (type) {
791 case HCI_ACLDATA_PKT:
792 case HCI_SCODATA_PKT:
793 case HCI_EVENT_PKT:
794 hci_skb_pkt_type(skb) = type;
795 skb_put(skb, buf_len);
796 skb_pull(skb, SDIO_HEADER_LEN);
797
798 if (type == HCI_EVENT_PKT) {
799 if (btmrvl_check_evtpkt(priv, skb))
800 hci_recv_frame(hdev, skb);
801 } else {
802 hci_recv_frame(hdev, skb);
803 }
804
805 hdev->stat.byte_rx += buf_len;
806 break;
807
808 case MRVL_VENDOR_PKT:
809 hci_skb_pkt_type(skb) = HCI_VENDOR_PKT;
810 skb_put(skb, buf_len);
811 skb_pull(skb, SDIO_HEADER_LEN);
812
813 if (btmrvl_process_event(priv, skb))
814 hci_recv_frame(hdev, skb);
815
816 hdev->stat.byte_rx += buf_len;
817 break;
818
819 default:
820 BT_ERR("Unknown packet type:%d", type);
821 BT_ERR("hex: %*ph", blksz * num_blocks, payload);
822
823 kfree_skb(skb);
824 skb = NULL;
825 break;
826 }
827
828exit:
829 if (ret) {
830 hdev->stat.err_rx++;
831 kfree_skb(skb);
832 }
833
834 return ret;
835}
836
837static int btmrvl_sdio_process_int_status(struct btmrvl_private *priv)
838{
839 ulong flags;
840 u8 ireg;
841 struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
842
843 spin_lock_irqsave(&priv->driver_lock, flags);
844 ireg = sdio_ireg;
845 sdio_ireg = 0;
846 spin_unlock_irqrestore(&priv->driver_lock, flags);
847
848 sdio_claim_host(card->func);
849 if (ireg & DN_LD_HOST_INT_STATUS) {
850 if (priv->btmrvl_dev.tx_dnld_rdy)
851 BT_DBG("tx_done already received: "
852 " int_status=0x%x", ireg);
853 else
854 priv->btmrvl_dev.tx_dnld_rdy = true;
855 }
856
857 if (ireg & UP_LD_HOST_INT_STATUS)
858 btmrvl_sdio_card_to_host(priv);
859
860 sdio_release_host(card->func);
861
862 return 0;
863}
864
865static int btmrvl_sdio_read_to_clear(struct btmrvl_sdio_card *card, u8 *ireg)
866{
867 struct btmrvl_adapter *adapter = card->priv->adapter;
868 int ret;
869
870 ret = sdio_readsb(card->func, adapter->hw_regs, 0, SDIO_BLOCK_SIZE);
871 if (ret) {
872 BT_ERR("sdio_readsb: read int hw_regs failed: %d", ret);
873 return ret;
874 }
875
876 *ireg = adapter->hw_regs[card->reg->host_intstatus];
877 BT_DBG("hw_regs[%#x]=%#x", card->reg->host_intstatus, *ireg);
878
879 return 0;
880}
881
882static int btmrvl_sdio_write_to_clear(struct btmrvl_sdio_card *card, u8 *ireg)
883{
884 int ret;
885
886 *ireg = sdio_readb(card->func, card->reg->host_intstatus, &ret);
887 if (ret) {
888 BT_ERR("sdio_readb: read int status failed: %d", ret);
889 return ret;
890 }
891
892 if (*ireg) {
893 /*
894 * DN_LD_HOST_INT_STATUS and/or UP_LD_HOST_INT_STATUS
895 * Clear the interrupt status register and re-enable the
896 * interrupt.
897 */
898 BT_DBG("int_status = 0x%x", *ireg);
899
900 sdio_writeb(card->func, ~(*ireg) & (DN_LD_HOST_INT_STATUS |
901 UP_LD_HOST_INT_STATUS),
902 card->reg->host_intstatus, &ret);
903 if (ret) {
904 BT_ERR("sdio_writeb: clear int status failed: %d", ret);
905 return ret;
906 }
907 }
908
909 return 0;
910}
911
912static void btmrvl_sdio_interrupt(struct sdio_func *func)
913{
914 struct btmrvl_private *priv;
915 struct btmrvl_sdio_card *card;
916 ulong flags;
917 u8 ireg = 0;
918 int ret;
919
920 card = sdio_get_drvdata(func);
921 if (!card || !card->priv) {
922 BT_ERR("sbi_interrupt(%p) card or priv is NULL, card=%p",
923 func, card);
924 return;
925 }
926
927 priv = card->priv;
928
929 if (priv->surprise_removed)
930 return;
931
932 if (card->reg->int_read_to_clear)
933 ret = btmrvl_sdio_read_to_clear(card, &ireg);
934 else
935 ret = btmrvl_sdio_write_to_clear(card, &ireg);
936
937 if (ret)
938 return;
939
940 spin_lock_irqsave(&priv->driver_lock, flags);
941 sdio_ireg |= ireg;
942 spin_unlock_irqrestore(&priv->driver_lock, flags);
943
944 btmrvl_interrupt(priv);
945}
946
947static int btmrvl_sdio_register_dev(struct btmrvl_sdio_card *card)
948{
949 struct sdio_func *func;
950 u8 reg;
951 int ret;
952
953 if (!card || !card->func) {
954 BT_ERR("Error: card or function is NULL!");
955 ret = -EINVAL;
956 goto failed;
957 }
958
959 func = card->func;
960
961 sdio_claim_host(func);
962
963 ret = sdio_enable_func(func);
964 if (ret) {
965 BT_ERR("sdio_enable_func() failed: ret=%d", ret);
966 ret = -EIO;
967 goto release_host;
968 }
969
970 ret = sdio_claim_irq(func, btmrvl_sdio_interrupt);
971 if (ret) {
972 BT_ERR("sdio_claim_irq failed: ret=%d", ret);
973 ret = -EIO;
974 goto disable_func;
975 }
976
977 ret = sdio_set_block_size(card->func, SDIO_BLOCK_SIZE);
978 if (ret) {
979 BT_ERR("cannot set SDIO block size");
980 ret = -EIO;
981 goto release_irq;
982 }
983
984 reg = sdio_readb(func, card->reg->io_port_0, &ret);
985 if (ret < 0) {
986 ret = -EIO;
987 goto release_irq;
988 }
989
990 card->ioport = reg;
991
992 reg = sdio_readb(func, card->reg->io_port_1, &ret);
993 if (ret < 0) {
994 ret = -EIO;
995 goto release_irq;
996 }
997
998 card->ioport |= (reg << 8);
999
1000 reg = sdio_readb(func, card->reg->io_port_2, &ret);
1001 if (ret < 0) {
1002 ret = -EIO;
1003 goto release_irq;
1004 }
1005
1006 card->ioport |= (reg << 16);
1007
1008 BT_DBG("SDIO FUNC%d IO port: 0x%x", func->num, card->ioport);
1009
1010 if (card->reg->int_read_to_clear) {
1011 reg = sdio_readb(func, card->reg->host_int_rsr, &ret);
1012 if (ret < 0) {
1013 ret = -EIO;
1014 goto release_irq;
1015 }
1016 sdio_writeb(func, reg | 0x3f, card->reg->host_int_rsr, &ret);
1017 if (ret < 0) {
1018 ret = -EIO;
1019 goto release_irq;
1020 }
1021
1022 reg = sdio_readb(func, card->reg->card_misc_cfg, &ret);
1023 if (ret < 0) {
1024 ret = -EIO;
1025 goto release_irq;
1026 }
1027 sdio_writeb(func, reg | 0x10, card->reg->card_misc_cfg, &ret);
1028 if (ret < 0) {
1029 ret = -EIO;
1030 goto release_irq;
1031 }
1032 }
1033
1034 sdio_set_drvdata(func, card);
1035
1036 sdio_release_host(func);
1037
1038 return 0;
1039
1040release_irq:
1041 sdio_release_irq(func);
1042
1043disable_func:
1044 sdio_disable_func(func);
1045
1046release_host:
1047 sdio_release_host(func);
1048
1049failed:
1050 return ret;
1051}
1052
1053static int btmrvl_sdio_unregister_dev(struct btmrvl_sdio_card *card)
1054{
1055 if (card && card->func) {
1056 sdio_claim_host(card->func);
1057 sdio_release_irq(card->func);
1058 sdio_disable_func(card->func);
1059 sdio_release_host(card->func);
1060 sdio_set_drvdata(card->func, NULL);
1061 }
1062
1063 return 0;
1064}
1065
1066static int btmrvl_sdio_enable_host_int(struct btmrvl_sdio_card *card)
1067{
1068 int ret;
1069
1070 if (!card || !card->func)
1071 return -EINVAL;
1072
1073 sdio_claim_host(card->func);
1074
1075 ret = btmrvl_sdio_enable_host_int_mask(card, HIM_ENABLE);
1076
1077 btmrvl_sdio_get_rx_unit(card);
1078
1079 sdio_release_host(card->func);
1080
1081 return ret;
1082}
1083
1084static int btmrvl_sdio_disable_host_int(struct btmrvl_sdio_card *card)
1085{
1086 int ret;
1087
1088 if (!card || !card->func)
1089 return -EINVAL;
1090
1091 sdio_claim_host(card->func);
1092
1093 ret = btmrvl_sdio_disable_host_int_mask(card, HIM_DISABLE);
1094
1095 sdio_release_host(card->func);
1096
1097 return ret;
1098}
1099
1100static int btmrvl_sdio_host_to_card(struct btmrvl_private *priv,
1101 u8 *payload, u16 nb)
1102{
1103 struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
1104 int ret = 0;
1105 int blksz;
1106 int i = 0;
1107 u8 *buf = NULL;
1108 void *tmpbuf = NULL;
1109 int tmpbufsz;
1110
1111 if (!card || !card->func) {
1112 BT_ERR("card or function is NULL!");
1113 return -EINVAL;
1114 }
1115
1116 blksz = DIV_ROUND_UP(nb, SDIO_BLOCK_SIZE) * SDIO_BLOCK_SIZE;
1117
1118 buf = payload;
1119 if ((unsigned long) payload & (BTSDIO_DMA_ALIGN - 1) ||
1120 nb < blksz) {
1121 tmpbufsz = ALIGN_SZ(blksz, BTSDIO_DMA_ALIGN) +
1122 BTSDIO_DMA_ALIGN;
1123 tmpbuf = kzalloc(tmpbufsz, GFP_KERNEL);
1124 if (!tmpbuf)
1125 return -ENOMEM;
1126 buf = (u8 *) ALIGN_ADDR(tmpbuf, BTSDIO_DMA_ALIGN);
1127 memcpy(buf, payload, nb);
1128 }
1129
1130 sdio_claim_host(card->func);
1131
1132 do {
1133 /* Transfer data to card */
1134 ret = sdio_writesb(card->func, card->ioport, buf,
1135 blksz);
1136 if (ret < 0) {
1137 i++;
1138 BT_ERR("i=%d writesb failed: %d", i, ret);
1139 BT_ERR("hex: %*ph", nb, payload);
1140 ret = -EIO;
1141 if (i > MAX_WRITE_IOMEM_RETRY)
1142 goto exit;
1143 }
1144 } while (ret);
1145
1146 priv->btmrvl_dev.tx_dnld_rdy = false;
1147
1148exit:
1149 sdio_release_host(card->func);
1150 kfree(tmpbuf);
1151
1152 return ret;
1153}
1154
1155static int btmrvl_sdio_download_fw(struct btmrvl_sdio_card *card)
1156{
1157 int ret;
1158 u8 fws0;
1159 int pollnum = MAX_POLL_TRIES;
1160
1161 if (!card || !card->func) {
1162 BT_ERR("card or function is NULL!");
1163 return -EINVAL;
1164 }
1165
1166 if (!btmrvl_sdio_verify_fw_download(card, 1)) {
1167 BT_DBG("Firmware already downloaded!");
1168 return 0;
1169 }
1170
1171 sdio_claim_host(card->func);
1172
1173 /* Check if other function driver is downloading the firmware */
1174 fws0 = sdio_readb(card->func, card->reg->card_fw_status0, &ret);
1175 if (ret) {
1176 BT_ERR("Failed to read FW downloading status!");
1177 ret = -EIO;
1178 goto done;
1179 }
1180 if (fws0) {
1181 BT_DBG("BT not the winner (%#x). Skip FW downloading", fws0);
1182
1183 /* Give other function more time to download the firmware */
1184 pollnum *= 10;
1185 } else {
1186 if (card->helper) {
1187 ret = btmrvl_sdio_download_helper(card);
1188 if (ret) {
1189 BT_ERR("Failed to download helper!");
1190 ret = -EIO;
1191 goto done;
1192 }
1193 }
1194
1195 if (btmrvl_sdio_download_fw_w_helper(card)) {
1196 BT_ERR("Failed to download firmware!");
1197 ret = -EIO;
1198 goto done;
1199 }
1200 }
1201
1202 /*
1203 * winner or not, with this test the FW synchronizes when the
1204 * module can continue its initialization
1205 */
1206 if (btmrvl_sdio_verify_fw_download(card, pollnum)) {
1207 BT_ERR("FW failed to be active in time!");
1208 ret = -ETIMEDOUT;
1209 goto done;
1210 }
1211
1212 sdio_release_host(card->func);
1213
1214 return 0;
1215
1216done:
1217 sdio_release_host(card->func);
1218 return ret;
1219}
1220
1221static int btmrvl_sdio_wakeup_fw(struct btmrvl_private *priv)
1222{
1223 struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
1224 int ret = 0;
1225
1226 if (!card || !card->func) {
1227 BT_ERR("card or function is NULL!");
1228 return -EINVAL;
1229 }
1230
1231 sdio_claim_host(card->func);
1232
1233 sdio_writeb(card->func, HOST_POWER_UP, card->reg->cfg, &ret);
1234
1235 sdio_release_host(card->func);
1236
1237 BT_DBG("wake up firmware");
1238
1239 return ret;
1240}
1241
1242static void btmrvl_sdio_dump_regs(struct btmrvl_private *priv)
1243{
1244 struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
1245 int ret = 0;
1246 unsigned int reg, reg_start, reg_end;
1247 char buf[256], *ptr;
1248 u8 loop, func, data;
1249 int MAX_LOOP = 2;
1250
1251 btmrvl_sdio_wakeup_fw(priv);
1252 sdio_claim_host(card->func);
1253
1254 for (loop = 0; loop < MAX_LOOP; loop++) {
1255 memset(buf, 0, sizeof(buf));
1256 ptr = buf;
1257
1258 if (loop == 0) {
1259 /* Read the registers of SDIO function0 */
1260 func = loop;
1261 reg_start = 0;
1262 reg_end = 9;
1263 } else {
1264 func = 2;
1265 reg_start = 0;
1266 reg_end = 0x09;
1267 }
1268
1269 ptr += sprintf(ptr, "SDIO Func%d (%#x-%#x): ",
1270 func, reg_start, reg_end);
1271 for (reg = reg_start; reg <= reg_end; reg++) {
1272 if (func == 0)
1273 data = sdio_f0_readb(card->func, reg, &ret);
1274 else
1275 data = sdio_readb(card->func, reg, &ret);
1276
1277 if (!ret) {
1278 ptr += sprintf(ptr, "%02x ", data);
1279 } else {
1280 ptr += sprintf(ptr, "ERR");
1281 break;
1282 }
1283 }
1284
1285 BT_INFO("%s", buf);
1286 }
1287
1288 sdio_release_host(card->func);
1289}
1290
1291/* This function read/write firmware */
1292static enum
1293rdwr_status btmrvl_sdio_rdwr_firmware(struct btmrvl_private *priv,
1294 u8 doneflag)
1295{
1296 struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
1297 int ret, tries;
1298 u8 ctrl_data = 0;
1299
1300 sdio_writeb(card->func, FW_DUMP_HOST_READY, card->reg->fw_dump_ctrl,
1301 &ret);
1302
1303 if (ret) {
1304 BT_ERR("SDIO write err");
1305 return RDWR_STATUS_FAILURE;
1306 }
1307
1308 for (tries = 0; tries < MAX_POLL_TRIES; tries++) {
1309 ctrl_data = sdio_readb(card->func, card->reg->fw_dump_ctrl,
1310 &ret);
1311
1312 if (ret) {
1313 BT_ERR("SDIO read err");
1314 return RDWR_STATUS_FAILURE;
1315 }
1316
1317 if (ctrl_data == FW_DUMP_DONE)
1318 break;
1319 if (doneflag && ctrl_data == doneflag)
1320 return RDWR_STATUS_DONE;
1321 if (ctrl_data != FW_DUMP_HOST_READY) {
1322 BT_INFO("The ctrl reg was changed, re-try again!");
1323 sdio_writeb(card->func, FW_DUMP_HOST_READY,
1324 card->reg->fw_dump_ctrl, &ret);
1325 if (ret) {
1326 BT_ERR("SDIO write err");
1327 return RDWR_STATUS_FAILURE;
1328 }
1329 }
1330 usleep_range(100, 200);
1331 }
1332
1333 if (ctrl_data == FW_DUMP_HOST_READY) {
1334 BT_ERR("Fail to pull ctrl_data");
1335 return RDWR_STATUS_FAILURE;
1336 }
1337
1338 return RDWR_STATUS_SUCCESS;
1339}
1340
1341/* This function dump sdio register and memory data */
1342static void btmrvl_sdio_coredump(struct device *dev)
1343{
1344 struct sdio_func *func = dev_to_sdio_func(dev);
1345 struct btmrvl_sdio_card *card;
1346 struct btmrvl_private *priv;
1347 int ret = 0;
1348 unsigned int reg, reg_start, reg_end;
1349 enum rdwr_status stat;
1350 u8 *dbg_ptr, *end_ptr, *fw_dump_data, *fw_dump_ptr;
1351 u8 dump_num = 0, idx, i, read_reg, doneflag = 0;
1352 u32 memory_size, fw_dump_len = 0;
1353
1354 card = sdio_get_drvdata(func);
1355 priv = card->priv;
1356
1357 /* dump sdio register first */
1358 btmrvl_sdio_dump_regs(priv);
1359
1360 if (!card->supports_fw_dump) {
1361 BT_ERR("Firmware dump not supported for this card!");
1362 return;
1363 }
1364
1365 for (idx = 0; idx < ARRAY_SIZE(mem_type_mapping_tbl); idx++) {
1366 struct memory_type_mapping *entry = &mem_type_mapping_tbl[idx];
1367
1368 if (entry->mem_ptr) {
1369 vfree(entry->mem_ptr);
1370 entry->mem_ptr = NULL;
1371 }
1372 entry->mem_size = 0;
1373 }
1374
1375 btmrvl_sdio_wakeup_fw(priv);
1376 sdio_claim_host(card->func);
1377
1378 BT_INFO("== btmrvl firmware dump start ==");
1379
1380 stat = btmrvl_sdio_rdwr_firmware(priv, doneflag);
1381 if (stat == RDWR_STATUS_FAILURE)
1382 goto done;
1383
1384 reg = card->reg->fw_dump_start;
1385 /* Read the number of the memories which will dump */
1386 dump_num = sdio_readb(card->func, reg, &ret);
1387
1388 if (ret) {
1389 BT_ERR("SDIO read memory length err");
1390 goto done;
1391 }
1392
1393 /* Read the length of every memory which will dump */
1394 for (idx = 0; idx < dump_num; idx++) {
1395 struct memory_type_mapping *entry = &mem_type_mapping_tbl[idx];
1396
1397 stat = btmrvl_sdio_rdwr_firmware(priv, doneflag);
1398 if (stat == RDWR_STATUS_FAILURE)
1399 goto done;
1400
1401 memory_size = 0;
1402 reg = card->reg->fw_dump_start;
1403 for (i = 0; i < 4; i++) {
1404 read_reg = sdio_readb(card->func, reg, &ret);
1405 if (ret) {
1406 BT_ERR("SDIO read err");
1407 goto done;
1408 }
1409 memory_size |= (read_reg << i*8);
1410 reg++;
1411 }
1412
1413 if (memory_size == 0) {
1414 BT_INFO("Firmware dump finished!");
1415 sdio_writeb(card->func, FW_DUMP_READ_DONE,
1416 card->reg->fw_dump_ctrl, &ret);
1417 if (ret) {
1418 BT_ERR("SDIO Write MEMDUMP_FINISH ERR");
1419 goto done;
1420 }
1421 break;
1422 }
1423
1424 BT_INFO("%s_SIZE=0x%x", entry->mem_name, memory_size);
1425 entry->mem_ptr = vzalloc(memory_size + 1);
1426 entry->mem_size = memory_size;
1427 if (!entry->mem_ptr) {
1428 BT_ERR("Vzalloc %s failed", entry->mem_name);
1429 goto done;
1430 }
1431
1432 fw_dump_len += (strlen("========Start dump ") +
1433 strlen(entry->mem_name) +
1434 strlen("========\n") +
1435 (memory_size + 1) +
1436 strlen("\n========End dump========\n"));
1437
1438 dbg_ptr = entry->mem_ptr;
1439 end_ptr = dbg_ptr + memory_size;
1440
1441 doneflag = entry->done_flag;
1442 BT_INFO("Start %s output, please wait...",
1443 entry->mem_name);
1444
1445 do {
1446 stat = btmrvl_sdio_rdwr_firmware(priv, doneflag);
1447 if (stat == RDWR_STATUS_FAILURE)
1448 goto done;
1449
1450 reg_start = card->reg->fw_dump_start;
1451 reg_end = card->reg->fw_dump_end;
1452 for (reg = reg_start; reg <= reg_end; reg++) {
1453 *dbg_ptr = sdio_readb(card->func, reg, &ret);
1454 if (ret) {
1455 BT_ERR("SDIO read err");
1456 goto done;
1457 }
1458 if (dbg_ptr < end_ptr)
1459 dbg_ptr++;
1460 else
1461 BT_ERR("Allocated buffer not enough");
1462 }
1463
1464 if (stat == RDWR_STATUS_DONE) {
1465 BT_INFO("%s done: size=0x%tx",
1466 entry->mem_name,
1467 dbg_ptr - entry->mem_ptr);
1468 break;
1469 }
1470 } while (1);
1471 }
1472
1473 BT_INFO("== btmrvl firmware dump end ==");
1474
1475done:
1476 sdio_release_host(card->func);
1477
1478 if (fw_dump_len == 0)
1479 return;
1480
1481 fw_dump_data = vzalloc(fw_dump_len+1);
1482 if (!fw_dump_data) {
1483 BT_ERR("Vzalloc fw_dump_data fail!");
1484 return;
1485 }
1486 fw_dump_ptr = fw_dump_data;
1487
1488 /* Dump all the memory data into single file, a userspace script will
1489 * be used to split all the memory data to multiple files
1490 */
1491 BT_INFO("== btmrvl firmware dump to /sys/class/devcoredump start");
1492 for (idx = 0; idx < dump_num; idx++) {
1493 struct memory_type_mapping *entry = &mem_type_mapping_tbl[idx];
1494
1495 if (entry->mem_ptr) {
1496 strcpy(fw_dump_ptr, "========Start dump ");
1497 fw_dump_ptr += strlen("========Start dump ");
1498
1499 strcpy(fw_dump_ptr, entry->mem_name);
1500 fw_dump_ptr += strlen(entry->mem_name);
1501
1502 strcpy(fw_dump_ptr, "========\n");
1503 fw_dump_ptr += strlen("========\n");
1504
1505 memcpy(fw_dump_ptr, entry->mem_ptr, entry->mem_size);
1506 fw_dump_ptr += entry->mem_size;
1507
1508 strcpy(fw_dump_ptr, "\n========End dump========\n");
1509 fw_dump_ptr += strlen("\n========End dump========\n");
1510
1511 vfree(mem_type_mapping_tbl[idx].mem_ptr);
1512 mem_type_mapping_tbl[idx].mem_ptr = NULL;
1513 }
1514 }
1515
1516 /* fw_dump_data will be free in device coredump release function
1517 * after 5 min
1518 */
1519 dev_coredumpv(&card->func->dev, fw_dump_data, fw_dump_len, GFP_KERNEL);
1520 BT_INFO("== btmrvl firmware dump to /sys/class/devcoredump end");
1521}
1522
1523static int btmrvl_sdio_probe(struct sdio_func *func,
1524 const struct sdio_device_id *id)
1525{
1526 int ret = 0;
1527 struct btmrvl_private *priv = NULL;
1528 struct btmrvl_sdio_card *card = NULL;
1529
1530 BT_INFO("vendor=0x%x, device=0x%x, class=%d, fn=%d",
1531 id->vendor, id->device, id->class, func->num);
1532
1533 card = devm_kzalloc(&func->dev, sizeof(*card), GFP_KERNEL);
1534 if (!card)
1535 return -ENOMEM;
1536
1537 card->func = func;
1538
1539 if (id->driver_data) {
1540 struct btmrvl_sdio_device *data = (void *) id->driver_data;
1541 card->helper = data->helper;
1542 card->firmware = data->firmware;
1543 card->reg = data->reg;
1544 card->sd_blksz_fw_dl = data->sd_blksz_fw_dl;
1545 card->support_pscan_win_report = data->support_pscan_win_report;
1546 card->supports_fw_dump = data->supports_fw_dump;
1547 }
1548
1549 if (btmrvl_sdio_register_dev(card) < 0) {
1550 BT_ERR("Failed to register BT device!");
1551 return -ENODEV;
1552 }
1553
1554 /* Disable the interrupts on the card */
1555 btmrvl_sdio_disable_host_int(card);
1556
1557 if (btmrvl_sdio_download_fw(card)) {
1558 BT_ERR("Downloading firmware failed!");
1559 ret = -ENODEV;
1560 goto unreg_dev;
1561 }
1562
1563 btmrvl_sdio_enable_host_int(card);
1564
1565 /* Device tree node parsing and platform specific configuration*/
1566 btmrvl_sdio_probe_of(&func->dev, card);
1567
1568 priv = btmrvl_add_card(card);
1569 if (!priv) {
1570 BT_ERR("Initializing card failed!");
1571 ret = -ENODEV;
1572 goto disable_host_int;
1573 }
1574
1575 card->priv = priv;
1576
1577 /* Initialize the interface specific function pointers */
1578 priv->hw_host_to_card = btmrvl_sdio_host_to_card;
1579 priv->hw_wakeup_firmware = btmrvl_sdio_wakeup_fw;
1580 priv->hw_process_int_status = btmrvl_sdio_process_int_status;
1581
1582 if (btmrvl_register_hdev(priv)) {
1583 BT_ERR("Register hdev failed!");
1584 ret = -ENODEV;
1585 goto disable_host_int;
1586 }
1587
1588 return 0;
1589
1590disable_host_int:
1591 btmrvl_sdio_disable_host_int(card);
1592unreg_dev:
1593 btmrvl_sdio_unregister_dev(card);
1594 return ret;
1595}
1596
1597static void btmrvl_sdio_remove(struct sdio_func *func)
1598{
1599 struct btmrvl_sdio_card *card;
1600
1601 if (func) {
1602 card = sdio_get_drvdata(func);
1603 if (card) {
1604 /* Send SHUTDOWN command & disable interrupt
1605 * if user removes the module.
1606 */
1607 if (user_rmmod) {
1608 btmrvl_send_module_cfg_cmd(card->priv,
1609 MODULE_SHUTDOWN_REQ);
1610 btmrvl_sdio_disable_host_int(card);
1611 }
1612
1613 BT_DBG("unregister dev");
1614 card->priv->surprise_removed = true;
1615 btmrvl_sdio_unregister_dev(card);
1616 btmrvl_remove_card(card->priv);
1617 }
1618 }
1619}
1620
1621static int btmrvl_sdio_suspend(struct device *dev)
1622{
1623 struct sdio_func *func = dev_to_sdio_func(dev);
1624 struct btmrvl_sdio_card *card;
1625 struct btmrvl_private *priv;
1626 mmc_pm_flag_t pm_flags;
1627 struct hci_dev *hcidev;
1628
1629 if (func) {
1630 pm_flags = sdio_get_host_pm_caps(func);
1631 BT_DBG("%s: suspend: PM flags = 0x%x", sdio_func_id(func),
1632 pm_flags);
1633 if (!(pm_flags & MMC_PM_KEEP_POWER)) {
1634 BT_ERR("%s: cannot remain alive while suspended",
1635 sdio_func_id(func));
1636 return -ENOSYS;
1637 }
1638 card = sdio_get_drvdata(func);
1639 if (!card || !card->priv) {
1640 BT_ERR("card or priv structure is not valid");
1641 return 0;
1642 }
1643 } else {
1644 BT_ERR("sdio_func is not specified");
1645 return 0;
1646 }
1647
1648 /* Enable platform specific wakeup interrupt */
1649 if (card->plt_wake_cfg && card->plt_wake_cfg->irq_bt >= 0 &&
1650 device_may_wakeup(dev)) {
1651 card->plt_wake_cfg->wake_by_bt = false;
1652 enable_irq(card->plt_wake_cfg->irq_bt);
1653 enable_irq_wake(card->plt_wake_cfg->irq_bt);
1654 }
1655
1656 priv = card->priv;
1657 priv->adapter->is_suspending = true;
1658 hcidev = priv->btmrvl_dev.hcidev;
1659 BT_DBG("%s: SDIO suspend", hcidev->name);
1660 hci_suspend_dev(hcidev);
1661
1662 if (priv->adapter->hs_state != HS_ACTIVATED) {
1663 if (btmrvl_enable_hs(priv)) {
1664 BT_ERR("HS not activated, suspend failed!");
1665 /* Disable platform specific wakeup interrupt */
1666 if (card->plt_wake_cfg &&
1667 card->plt_wake_cfg->irq_bt >= 0 &&
1668 device_may_wakeup(dev)) {
1669 disable_irq_wake(card->plt_wake_cfg->irq_bt);
1670 disable_irq(card->plt_wake_cfg->irq_bt);
1671 }
1672
1673 priv->adapter->is_suspending = false;
1674 return -EBUSY;
1675 }
1676 }
1677
1678 priv->adapter->is_suspending = false;
1679 priv->adapter->is_suspended = true;
1680
1681 /* We will keep the power when hs enabled successfully */
1682 if (priv->adapter->hs_state == HS_ACTIVATED) {
1683 BT_DBG("suspend with MMC_PM_KEEP_POWER");
1684 return sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER);
1685 }
1686
1687 BT_DBG("suspend without MMC_PM_KEEP_POWER");
1688 return 0;
1689}
1690
1691static int btmrvl_sdio_resume(struct device *dev)
1692{
1693 struct sdio_func *func = dev_to_sdio_func(dev);
1694 struct btmrvl_sdio_card *card;
1695 struct btmrvl_private *priv;
1696 mmc_pm_flag_t pm_flags;
1697 struct hci_dev *hcidev;
1698
1699 if (func) {
1700 pm_flags = sdio_get_host_pm_caps(func);
1701 BT_DBG("%s: resume: PM flags = 0x%x", sdio_func_id(func),
1702 pm_flags);
1703 card = sdio_get_drvdata(func);
1704 if (!card || !card->priv) {
1705 BT_ERR("card or priv structure is not valid");
1706 return 0;
1707 }
1708 } else {
1709 BT_ERR("sdio_func is not specified");
1710 return 0;
1711 }
1712 priv = card->priv;
1713
1714 if (!priv->adapter->is_suspended) {
1715 BT_DBG("device already resumed");
1716 return 0;
1717 }
1718
1719 priv->hw_wakeup_firmware(priv);
1720 priv->adapter->hs_state = HS_DEACTIVATED;
1721 hcidev = priv->btmrvl_dev.hcidev;
1722 BT_DBG("%s: HS DEACTIVATED in resume!", hcidev->name);
1723 priv->adapter->is_suspended = false;
1724 BT_DBG("%s: SDIO resume", hcidev->name);
1725 hci_resume_dev(hcidev);
1726
1727 /* Disable platform specific wakeup interrupt */
1728 if (card->plt_wake_cfg && card->plt_wake_cfg->irq_bt >= 0 &&
1729 device_may_wakeup(dev)) {
1730 disable_irq_wake(card->plt_wake_cfg->irq_bt);
1731 disable_irq(card->plt_wake_cfg->irq_bt);
1732 if (card->plt_wake_cfg->wake_by_bt)
1733 /* Undo our disable, since interrupt handler already
1734 * did this.
1735 */
1736 enable_irq(card->plt_wake_cfg->irq_bt);
1737 }
1738
1739 return 0;
1740}
1741
1742static const struct dev_pm_ops btmrvl_sdio_pm_ops = {
1743 .suspend = btmrvl_sdio_suspend,
1744 .resume = btmrvl_sdio_resume,
1745};
1746
1747static struct sdio_driver bt_mrvl_sdio = {
1748 .name = "btmrvl_sdio",
1749 .id_table = btmrvl_sdio_ids,
1750 .probe = btmrvl_sdio_probe,
1751 .remove = btmrvl_sdio_remove,
1752 .drv = {
1753 .owner = THIS_MODULE,
1754 .coredump = btmrvl_sdio_coredump,
1755 .pm = &btmrvl_sdio_pm_ops,
1756 }
1757};
1758
1759static int __init btmrvl_sdio_init_module(void)
1760{
1761 if (sdio_register_driver(&bt_mrvl_sdio) != 0) {
1762 BT_ERR("SDIO Driver Registration Failed");
1763 return -ENODEV;
1764 }
1765
1766 /* Clear the flag in case user removes the card. */
1767 user_rmmod = 0;
1768
1769 return 0;
1770}
1771
1772static void __exit btmrvl_sdio_exit_module(void)
1773{
1774 /* Set the flag as user is removing this module. */
1775 user_rmmod = 1;
1776
1777 sdio_unregister_driver(&bt_mrvl_sdio);
1778}
1779
1780module_init(btmrvl_sdio_init_module);
1781module_exit(btmrvl_sdio_exit_module);
1782
1783MODULE_AUTHOR("Marvell International Ltd.");
1784MODULE_DESCRIPTION("Marvell BT-over-SDIO driver ver " VERSION);
1785MODULE_VERSION(VERSION);
1786MODULE_LICENSE("GPL v2");
1787MODULE_FIRMWARE("mrvl/sd8688_helper.bin");
1788MODULE_FIRMWARE("mrvl/sd8688.bin");
1789MODULE_FIRMWARE("mrvl/sd8787_uapsta.bin");
1790MODULE_FIRMWARE("mrvl/sd8797_uapsta.bin");
1791MODULE_FIRMWARE("mrvl/sd8887_uapsta.bin");
1792MODULE_FIRMWARE("mrvl/sd8897_uapsta.bin");
1793MODULE_FIRMWARE("mrvl/sdsd8977_combo_v2.bin");
1794MODULE_FIRMWARE("mrvl/sd8987_uapsta.bin");
1795MODULE_FIRMWARE("mrvl/sdsd8997_combo_v4.bin");