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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[] = {
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 btmrvl_plt_wake_cfg *cfg = card->plt_wake_cfg;
66
67 pr_info("%s: wake by bt\n", __func__);
68 cfg->wake_by_bt = true;
69 disable_irq_nosync(irq);
70
71 pm_wakeup_event(&card->func->dev, 0);
72 pm_system_wakeup();
73
74 return IRQ_HANDLED;
75}
76
77/* This function parses device tree node using mmc subnode devicetree API.
78 * The device node is saved in card->plt_of_node.
79 * If the device tree node exists and includes interrupts attributes, this
80 * function will request platform specific wakeup interrupt.
81 */
82static int btmrvl_sdio_probe_of(struct device *dev,
83 struct btmrvl_sdio_card *card)
84{
85 struct btmrvl_plt_wake_cfg *cfg;
86 int ret;
87
88 if (!dev->of_node ||
89 !of_match_node(btmrvl_sdio_of_match_table, dev->of_node)) {
90 pr_err("sdio platform data not available\n");
91 return -1;
92 }
93
94 card->plt_of_node = dev->of_node;
95
96 card->plt_wake_cfg = devm_kzalloc(dev, sizeof(*card->plt_wake_cfg),
97 GFP_KERNEL);
98 cfg = card->plt_wake_cfg;
99 if (cfg && card->plt_of_node) {
100 cfg->irq_bt = irq_of_parse_and_map(card->plt_of_node, 0);
101 if (!cfg->irq_bt) {
102 dev_err(dev, "fail to parse irq_bt from device tree\n");
103 cfg->irq_bt = -1;
104 } else {
105 ret = devm_request_irq(dev, cfg->irq_bt,
106 btmrvl_wake_irq_bt,
107 0, "bt_wake", card);
108 if (ret) {
109 dev_err(dev,
110 "Failed to request irq_bt %d (%d)\n",
111 cfg->irq_bt, ret);
112 }
113 disable_irq(cfg->irq_bt);
114 }
115 }
116
117 return 0;
118}
119
120/* The btmrvl_sdio_remove() callback function is called
121 * when user removes this module from kernel space or ejects
122 * the card from the slot. The driver handles these 2 cases
123 * differently.
124 * If the user is removing the module, a MODULE_SHUTDOWN_REQ
125 * command is sent to firmware and interrupt will be disabled.
126 * If the card is removed, there is no need to send command
127 * or disable interrupt.
128 *
129 * The variable 'user_rmmod' is used to distinguish these two
130 * scenarios. This flag is initialized as FALSE in case the card
131 * is removed, and will be set to TRUE for module removal when
132 * module_exit function is called.
133 */
134static u8 user_rmmod;
135static u8 sdio_ireg;
136
137static const struct btmrvl_sdio_card_reg btmrvl_reg_8688 = {
138 .cfg = 0x03,
139 .host_int_mask = 0x04,
140 .host_intstatus = 0x05,
141 .card_status = 0x20,
142 .sq_read_base_addr_a0 = 0x10,
143 .sq_read_base_addr_a1 = 0x11,
144 .card_fw_status0 = 0x40,
145 .card_fw_status1 = 0x41,
146 .card_rx_len = 0x42,
147 .card_rx_unit = 0x43,
148 .io_port_0 = 0x00,
149 .io_port_1 = 0x01,
150 .io_port_2 = 0x02,
151 .int_read_to_clear = false,
152};
153static const struct btmrvl_sdio_card_reg btmrvl_reg_87xx = {
154 .cfg = 0x00,
155 .host_int_mask = 0x02,
156 .host_intstatus = 0x03,
157 .card_status = 0x30,
158 .sq_read_base_addr_a0 = 0x40,
159 .sq_read_base_addr_a1 = 0x41,
160 .card_revision = 0x5c,
161 .card_fw_status0 = 0x60,
162 .card_fw_status1 = 0x61,
163 .card_rx_len = 0x62,
164 .card_rx_unit = 0x63,
165 .io_port_0 = 0x78,
166 .io_port_1 = 0x79,
167 .io_port_2 = 0x7a,
168 .int_read_to_clear = false,
169};
170
171static const struct btmrvl_sdio_card_reg btmrvl_reg_8887 = {
172 .cfg = 0x00,
173 .host_int_mask = 0x08,
174 .host_intstatus = 0x0C,
175 .card_status = 0x5C,
176 .sq_read_base_addr_a0 = 0x6C,
177 .sq_read_base_addr_a1 = 0x6D,
178 .card_revision = 0xC8,
179 .card_fw_status0 = 0x88,
180 .card_fw_status1 = 0x89,
181 .card_rx_len = 0x8A,
182 .card_rx_unit = 0x8B,
183 .io_port_0 = 0xE4,
184 .io_port_1 = 0xE5,
185 .io_port_2 = 0xE6,
186 .int_read_to_clear = true,
187 .host_int_rsr = 0x04,
188 .card_misc_cfg = 0xD8,
189};
190
191static const struct btmrvl_sdio_card_reg btmrvl_reg_8897 = {
192 .cfg = 0x00,
193 .host_int_mask = 0x02,
194 .host_intstatus = 0x03,
195 .card_status = 0x50,
196 .sq_read_base_addr_a0 = 0x60,
197 .sq_read_base_addr_a1 = 0x61,
198 .card_revision = 0xbc,
199 .card_fw_status0 = 0xc0,
200 .card_fw_status1 = 0xc1,
201 .card_rx_len = 0xc2,
202 .card_rx_unit = 0xc3,
203 .io_port_0 = 0xd8,
204 .io_port_1 = 0xd9,
205 .io_port_2 = 0xda,
206 .int_read_to_clear = true,
207 .host_int_rsr = 0x01,
208 .card_misc_cfg = 0xcc,
209 .fw_dump_ctrl = 0xe2,
210 .fw_dump_start = 0xe3,
211 .fw_dump_end = 0xea,
212};
213
214static const struct btmrvl_sdio_card_reg btmrvl_reg_8997 = {
215 .cfg = 0x00,
216 .host_int_mask = 0x08,
217 .host_intstatus = 0x0c,
218 .card_status = 0x5c,
219 .sq_read_base_addr_a0 = 0xf8,
220 .sq_read_base_addr_a1 = 0xf9,
221 .card_revision = 0xc8,
222 .card_fw_status0 = 0xe8,
223 .card_fw_status1 = 0xe9,
224 .card_rx_len = 0xea,
225 .card_rx_unit = 0xeb,
226 .io_port_0 = 0xe4,
227 .io_port_1 = 0xe5,
228 .io_port_2 = 0xe6,
229 .int_read_to_clear = true,
230 .host_int_rsr = 0x04,
231 .card_misc_cfg = 0xD8,
232 .fw_dump_ctrl = 0xf0,
233 .fw_dump_start = 0xf1,
234 .fw_dump_end = 0xf8,
235};
236
237static const struct btmrvl_sdio_device btmrvl_sdio_sd8688 = {
238 .helper = "mrvl/sd8688_helper.bin",
239 .firmware = "mrvl/sd8688.bin",
240 .reg = &btmrvl_reg_8688,
241 .support_pscan_win_report = false,
242 .sd_blksz_fw_dl = 64,
243 .supports_fw_dump = false,
244};
245
246static const struct btmrvl_sdio_device btmrvl_sdio_sd8787 = {
247 .helper = NULL,
248 .firmware = "mrvl/sd8787_uapsta.bin",
249 .reg = &btmrvl_reg_87xx,
250 .support_pscan_win_report = false,
251 .sd_blksz_fw_dl = 256,
252 .supports_fw_dump = false,
253};
254
255static const struct btmrvl_sdio_device btmrvl_sdio_sd8797 = {
256 .helper = NULL,
257 .firmware = "mrvl/sd8797_uapsta.bin",
258 .reg = &btmrvl_reg_87xx,
259 .support_pscan_win_report = false,
260 .sd_blksz_fw_dl = 256,
261 .supports_fw_dump = false,
262};
263
264static const struct btmrvl_sdio_device btmrvl_sdio_sd8887 = {
265 .helper = NULL,
266 .firmware = "mrvl/sd8887_uapsta.bin",
267 .reg = &btmrvl_reg_8887,
268 .support_pscan_win_report = true,
269 .sd_blksz_fw_dl = 256,
270 .supports_fw_dump = false,
271};
272
273static const struct btmrvl_sdio_device btmrvl_sdio_sd8897 = {
274 .helper = NULL,
275 .firmware = "mrvl/sd8897_uapsta.bin",
276 .reg = &btmrvl_reg_8897,
277 .support_pscan_win_report = true,
278 .sd_blksz_fw_dl = 256,
279 .supports_fw_dump = true,
280};
281
282static const struct btmrvl_sdio_device btmrvl_sdio_sd8997 = {
283 .helper = NULL,
284 .firmware = "mrvl/sd8997_uapsta.bin",
285 .reg = &btmrvl_reg_8997,
286 .support_pscan_win_report = true,
287 .sd_blksz_fw_dl = 256,
288 .supports_fw_dump = true,
289};
290
291static const struct sdio_device_id btmrvl_sdio_ids[] = {
292 /* Marvell SD8688 Bluetooth device */
293 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x9105),
294 .driver_data = (unsigned long)&btmrvl_sdio_sd8688 },
295 /* Marvell SD8787 Bluetooth device */
296 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x911A),
297 .driver_data = (unsigned long)&btmrvl_sdio_sd8787 },
298 /* Marvell SD8787 Bluetooth AMP device */
299 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x911B),
300 .driver_data = (unsigned long)&btmrvl_sdio_sd8787 },
301 /* Marvell SD8797 Bluetooth device */
302 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x912A),
303 .driver_data = (unsigned long)&btmrvl_sdio_sd8797 },
304 /* Marvell SD8887 Bluetooth device */
305 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x9136),
306 .driver_data = (unsigned long)&btmrvl_sdio_sd8887 },
307 /* Marvell SD8897 Bluetooth device */
308 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x912E),
309 .driver_data = (unsigned long)&btmrvl_sdio_sd8897 },
310 /* Marvell SD8997 Bluetooth device */
311 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x9142),
312 .driver_data = (unsigned long)&btmrvl_sdio_sd8997 },
313
314 { } /* Terminating entry */
315};
316
317MODULE_DEVICE_TABLE(sdio, btmrvl_sdio_ids);
318
319static int btmrvl_sdio_get_rx_unit(struct btmrvl_sdio_card *card)
320{
321 u8 reg;
322 int ret;
323
324 reg = sdio_readb(card->func, card->reg->card_rx_unit, &ret);
325 if (!ret)
326 card->rx_unit = reg;
327
328 return ret;
329}
330
331static int btmrvl_sdio_read_fw_status(struct btmrvl_sdio_card *card, u16 *dat)
332{
333 u8 fws0, fws1;
334 int ret;
335
336 *dat = 0;
337
338 fws0 = sdio_readb(card->func, card->reg->card_fw_status0, &ret);
339 if (ret)
340 return -EIO;
341
342 fws1 = sdio_readb(card->func, card->reg->card_fw_status1, &ret);
343 if (ret)
344 return -EIO;
345
346 *dat = (((u16) fws1) << 8) | fws0;
347
348 return 0;
349}
350
351static int btmrvl_sdio_read_rx_len(struct btmrvl_sdio_card *card, u16 *dat)
352{
353 u8 reg;
354 int ret;
355
356 reg = sdio_readb(card->func, card->reg->card_rx_len, &ret);
357 if (!ret)
358 *dat = (u16) reg << card->rx_unit;
359
360 return ret;
361}
362
363static int btmrvl_sdio_enable_host_int_mask(struct btmrvl_sdio_card *card,
364 u8 mask)
365{
366 int ret;
367
368 sdio_writeb(card->func, mask, card->reg->host_int_mask, &ret);
369 if (ret) {
370 BT_ERR("Unable to enable the host interrupt!");
371 ret = -EIO;
372 }
373
374 return ret;
375}
376
377static int btmrvl_sdio_disable_host_int_mask(struct btmrvl_sdio_card *card,
378 u8 mask)
379{
380 u8 host_int_mask;
381 int ret;
382
383 host_int_mask = sdio_readb(card->func, card->reg->host_int_mask, &ret);
384 if (ret)
385 return -EIO;
386
387 host_int_mask &= ~mask;
388
389 sdio_writeb(card->func, host_int_mask, card->reg->host_int_mask, &ret);
390 if (ret < 0) {
391 BT_ERR("Unable to disable the host interrupt!");
392 return -EIO;
393 }
394
395 return 0;
396}
397
398static int btmrvl_sdio_poll_card_status(struct btmrvl_sdio_card *card, u8 bits)
399{
400 unsigned int tries;
401 u8 status;
402 int ret;
403
404 for (tries = 0; tries < MAX_POLL_TRIES * 1000; tries++) {
405 status = sdio_readb(card->func, card->reg->card_status, &ret);
406 if (ret)
407 goto failed;
408 if ((status & bits) == bits)
409 return ret;
410
411 udelay(1);
412 }
413
414 ret = -ETIMEDOUT;
415
416failed:
417 BT_ERR("FAILED! ret=%d", ret);
418
419 return ret;
420}
421
422static int btmrvl_sdio_verify_fw_download(struct btmrvl_sdio_card *card,
423 int pollnum)
424{
425 u16 firmwarestat;
426 int tries, ret;
427
428 /* Wait for firmware to become ready */
429 for (tries = 0; tries < pollnum; tries++) {
430 sdio_claim_host(card->func);
431 ret = btmrvl_sdio_read_fw_status(card, &firmwarestat);
432 sdio_release_host(card->func);
433 if (ret < 0)
434 continue;
435
436 if (firmwarestat == FIRMWARE_READY)
437 return 0;
438
439 msleep(100);
440 }
441
442 return -ETIMEDOUT;
443}
444
445static int btmrvl_sdio_download_helper(struct btmrvl_sdio_card *card)
446{
447 const struct firmware *fw_helper = NULL;
448 const u8 *helper = NULL;
449 int ret;
450 void *tmphlprbuf = NULL;
451 int tmphlprbufsz, hlprblknow, helperlen;
452 u8 *helperbuf;
453 u32 tx_len;
454
455 ret = request_firmware(&fw_helper, card->helper,
456 &card->func->dev);
457 if ((ret < 0) || !fw_helper) {
458 BT_ERR("request_firmware(helper) failed, error code = %d",
459 ret);
460 ret = -ENOENT;
461 goto done;
462 }
463
464 helper = fw_helper->data;
465 helperlen = fw_helper->size;
466
467 BT_DBG("Downloading helper image (%d bytes), block size %d bytes",
468 helperlen, SDIO_BLOCK_SIZE);
469
470 tmphlprbufsz = ALIGN_SZ(BTM_UPLD_SIZE, BTSDIO_DMA_ALIGN);
471
472 tmphlprbuf = kzalloc(tmphlprbufsz, GFP_KERNEL);
473 if (!tmphlprbuf) {
474 BT_ERR("Unable to allocate buffer for helper."
475 " Terminating download");
476 ret = -ENOMEM;
477 goto done;
478 }
479
480 helperbuf = (u8 *) ALIGN_ADDR(tmphlprbuf, BTSDIO_DMA_ALIGN);
481
482 /* Perform helper data transfer */
483 tx_len = (FIRMWARE_TRANSFER_NBLOCK * SDIO_BLOCK_SIZE)
484 - SDIO_HEADER_LEN;
485 hlprblknow = 0;
486
487 do {
488 ret = btmrvl_sdio_poll_card_status(card,
489 CARD_IO_READY | DN_LD_CARD_RDY);
490 if (ret < 0) {
491 BT_ERR("Helper download poll status timeout @ %d",
492 hlprblknow);
493 goto done;
494 }
495
496 /* Check if there is more data? */
497 if (hlprblknow >= helperlen)
498 break;
499
500 if (helperlen - hlprblknow < tx_len)
501 tx_len = helperlen - hlprblknow;
502
503 /* Little-endian */
504 helperbuf[0] = ((tx_len & 0x000000ff) >> 0);
505 helperbuf[1] = ((tx_len & 0x0000ff00) >> 8);
506 helperbuf[2] = ((tx_len & 0x00ff0000) >> 16);
507 helperbuf[3] = ((tx_len & 0xff000000) >> 24);
508
509 memcpy(&helperbuf[SDIO_HEADER_LEN], &helper[hlprblknow],
510 tx_len);
511
512 /* Now send the data */
513 ret = sdio_writesb(card->func, card->ioport, helperbuf,
514 FIRMWARE_TRANSFER_NBLOCK * SDIO_BLOCK_SIZE);
515 if (ret < 0) {
516 BT_ERR("IO error during helper download @ %d",
517 hlprblknow);
518 goto done;
519 }
520
521 hlprblknow += tx_len;
522 } while (true);
523
524 BT_DBG("Transferring helper image EOF block");
525
526 memset(helperbuf, 0x0, SDIO_BLOCK_SIZE);
527
528 ret = sdio_writesb(card->func, card->ioport, helperbuf,
529 SDIO_BLOCK_SIZE);
530 if (ret < 0) {
531 BT_ERR("IO error in writing helper image EOF block");
532 goto done;
533 }
534
535 ret = 0;
536
537done:
538 kfree(tmphlprbuf);
539 release_firmware(fw_helper);
540 return ret;
541}
542
543static int btmrvl_sdio_download_fw_w_helper(struct btmrvl_sdio_card *card)
544{
545 const struct firmware *fw_firmware = NULL;
546 const u8 *firmware = NULL;
547 int firmwarelen, tmpfwbufsz, ret;
548 unsigned int tries, offset;
549 u8 base0, base1;
550 void *tmpfwbuf = NULL;
551 u8 *fwbuf;
552 u16 len, blksz_dl = card->sd_blksz_fw_dl;
553 int txlen = 0, tx_blocks = 0, count = 0;
554
555 ret = request_firmware(&fw_firmware, card->firmware,
556 &card->func->dev);
557 if ((ret < 0) || !fw_firmware) {
558 BT_ERR("request_firmware(firmware) failed, error code = %d",
559 ret);
560 ret = -ENOENT;
561 goto done;
562 }
563
564 firmware = fw_firmware->data;
565 firmwarelen = fw_firmware->size;
566
567 BT_DBG("Downloading FW image (%d bytes)", firmwarelen);
568
569 tmpfwbufsz = ALIGN_SZ(BTM_UPLD_SIZE, BTSDIO_DMA_ALIGN);
570 tmpfwbuf = kzalloc(tmpfwbufsz, GFP_KERNEL);
571 if (!tmpfwbuf) {
572 BT_ERR("Unable to allocate buffer for firmware."
573 " Terminating download");
574 ret = -ENOMEM;
575 goto done;
576 }
577
578 /* Ensure aligned firmware buffer */
579 fwbuf = (u8 *) ALIGN_ADDR(tmpfwbuf, BTSDIO_DMA_ALIGN);
580
581 /* Perform firmware data transfer */
582 offset = 0;
583 do {
584 ret = btmrvl_sdio_poll_card_status(card,
585 CARD_IO_READY | DN_LD_CARD_RDY);
586 if (ret < 0) {
587 BT_ERR("FW download with helper poll status"
588 " timeout @ %d", offset);
589 goto done;
590 }
591
592 /* Check if there is more data ? */
593 if (offset >= firmwarelen)
594 break;
595
596 for (tries = 0; tries < MAX_POLL_TRIES; tries++) {
597 base0 = sdio_readb(card->func,
598 card->reg->sq_read_base_addr_a0, &ret);
599 if (ret) {
600 BT_ERR("BASE0 register read failed:"
601 " base0 = 0x%04X(%d)."
602 " Terminating download",
603 base0, base0);
604 ret = -EIO;
605 goto done;
606 }
607 base1 = sdio_readb(card->func,
608 card->reg->sq_read_base_addr_a1, &ret);
609 if (ret) {
610 BT_ERR("BASE1 register read failed:"
611 " base1 = 0x%04X(%d)."
612 " Terminating download",
613 base1, base1);
614 ret = -EIO;
615 goto done;
616 }
617
618 len = (((u16) base1) << 8) | base0;
619 if (len)
620 break;
621
622 udelay(10);
623 }
624
625 if (!len)
626 break;
627 else if (len > BTM_UPLD_SIZE) {
628 BT_ERR("FW download failure @%d, invalid length %d",
629 offset, len);
630 ret = -EINVAL;
631 goto done;
632 }
633
634 txlen = len;
635
636 if (len & BIT(0)) {
637 count++;
638 if (count > MAX_WRITE_IOMEM_RETRY) {
639 BT_ERR("FW download failure @%d, "
640 "over max retry count", offset);
641 ret = -EIO;
642 goto done;
643 }
644 BT_ERR("FW CRC error indicated by the helper: "
645 "len = 0x%04X, txlen = %d", len, txlen);
646 len &= ~BIT(0);
647 /* Set txlen to 0 so as to resend from same offset */
648 txlen = 0;
649 } else {
650 count = 0;
651
652 /* Last block ? */
653 if (firmwarelen - offset < txlen)
654 txlen = firmwarelen - offset;
655
656 tx_blocks = DIV_ROUND_UP(txlen, blksz_dl);
657
658 memcpy(fwbuf, &firmware[offset], txlen);
659 }
660
661 ret = sdio_writesb(card->func, card->ioport, fwbuf,
662 tx_blocks * blksz_dl);
663
664 if (ret < 0) {
665 BT_ERR("FW download, writesb(%d) failed @%d",
666 count, offset);
667 sdio_writeb(card->func, HOST_CMD53_FIN,
668 card->reg->cfg, &ret);
669 if (ret)
670 BT_ERR("writeb failed (CFG)");
671 }
672
673 offset += txlen;
674 } while (true);
675
676 BT_INFO("FW download over, size %d bytes", offset);
677
678 ret = 0;
679
680done:
681 kfree(tmpfwbuf);
682 release_firmware(fw_firmware);
683 return ret;
684}
685
686static int btmrvl_sdio_card_to_host(struct btmrvl_private *priv)
687{
688 u16 buf_len = 0;
689 int ret, num_blocks, blksz;
690 struct sk_buff *skb = NULL;
691 u32 type;
692 u8 *payload;
693 struct hci_dev *hdev = priv->btmrvl_dev.hcidev;
694 struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
695
696 if (!card || !card->func) {
697 BT_ERR("card or function is NULL!");
698 ret = -EINVAL;
699 goto exit;
700 }
701
702 /* Read the length of data to be transferred */
703 ret = btmrvl_sdio_read_rx_len(card, &buf_len);
704 if (ret < 0) {
705 BT_ERR("read rx_len failed");
706 ret = -EIO;
707 goto exit;
708 }
709
710 blksz = SDIO_BLOCK_SIZE;
711 num_blocks = DIV_ROUND_UP(buf_len, blksz);
712
713 if (buf_len <= SDIO_HEADER_LEN
714 || (num_blocks * blksz) > ALLOC_BUF_SIZE) {
715 BT_ERR("invalid packet length: %d", buf_len);
716 ret = -EINVAL;
717 goto exit;
718 }
719
720 /* Allocate buffer */
721 skb = bt_skb_alloc(num_blocks * blksz + BTSDIO_DMA_ALIGN, GFP_ATOMIC);
722 if (!skb) {
723 BT_ERR("No free skb");
724 ret = -ENOMEM;
725 goto exit;
726 }
727
728 if ((unsigned long) skb->data & (BTSDIO_DMA_ALIGN - 1)) {
729 skb_put(skb, (unsigned long) skb->data &
730 (BTSDIO_DMA_ALIGN - 1));
731 skb_pull(skb, (unsigned long) skb->data &
732 (BTSDIO_DMA_ALIGN - 1));
733 }
734
735 payload = skb->data;
736
737 ret = sdio_readsb(card->func, payload, card->ioport,
738 num_blocks * blksz);
739 if (ret < 0) {
740 BT_ERR("readsb failed: %d", ret);
741 ret = -EIO;
742 goto exit;
743 }
744
745 /* This is SDIO specific header length: byte[2][1][0], type: byte[3]
746 * (HCI_COMMAND = 1, ACL_DATA = 2, SCO_DATA = 3, 0xFE = Vendor)
747 */
748
749 buf_len = payload[0];
750 buf_len |= payload[1] << 8;
751 buf_len |= payload[2] << 16;
752
753 if (buf_len > blksz * num_blocks) {
754 BT_ERR("Skip incorrect packet: hdrlen %d buffer %d",
755 buf_len, blksz * num_blocks);
756 ret = -EIO;
757 goto exit;
758 }
759
760 type = payload[3];
761
762 switch (type) {
763 case HCI_ACLDATA_PKT:
764 case HCI_SCODATA_PKT:
765 case HCI_EVENT_PKT:
766 hci_skb_pkt_type(skb) = type;
767 skb_put(skb, buf_len);
768 skb_pull(skb, SDIO_HEADER_LEN);
769
770 if (type == HCI_EVENT_PKT) {
771 if (btmrvl_check_evtpkt(priv, skb))
772 hci_recv_frame(hdev, skb);
773 } else {
774 hci_recv_frame(hdev, skb);
775 }
776
777 hdev->stat.byte_rx += buf_len;
778 break;
779
780 case MRVL_VENDOR_PKT:
781 hci_skb_pkt_type(skb) = HCI_VENDOR_PKT;
782 skb_put(skb, buf_len);
783 skb_pull(skb, SDIO_HEADER_LEN);
784
785 if (btmrvl_process_event(priv, skb))
786 hci_recv_frame(hdev, skb);
787
788 hdev->stat.byte_rx += buf_len;
789 break;
790
791 default:
792 BT_ERR("Unknown packet type:%d", type);
793 BT_ERR("hex: %*ph", blksz * num_blocks, payload);
794
795 kfree_skb(skb);
796 skb = NULL;
797 break;
798 }
799
800exit:
801 if (ret) {
802 hdev->stat.err_rx++;
803 kfree_skb(skb);
804 }
805
806 return ret;
807}
808
809static int btmrvl_sdio_process_int_status(struct btmrvl_private *priv)
810{
811 ulong flags;
812 u8 ireg;
813 struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
814
815 spin_lock_irqsave(&priv->driver_lock, flags);
816 ireg = sdio_ireg;
817 sdio_ireg = 0;
818 spin_unlock_irqrestore(&priv->driver_lock, flags);
819
820 sdio_claim_host(card->func);
821 if (ireg & DN_LD_HOST_INT_STATUS) {
822 if (priv->btmrvl_dev.tx_dnld_rdy)
823 BT_DBG("tx_done already received: "
824 " int_status=0x%x", ireg);
825 else
826 priv->btmrvl_dev.tx_dnld_rdy = true;
827 }
828
829 if (ireg & UP_LD_HOST_INT_STATUS)
830 btmrvl_sdio_card_to_host(priv);
831
832 sdio_release_host(card->func);
833
834 return 0;
835}
836
837static int btmrvl_sdio_read_to_clear(struct btmrvl_sdio_card *card, u8 *ireg)
838{
839 struct btmrvl_adapter *adapter = card->priv->adapter;
840 int ret;
841
842 ret = sdio_readsb(card->func, adapter->hw_regs, 0, SDIO_BLOCK_SIZE);
843 if (ret) {
844 BT_ERR("sdio_readsb: read int hw_regs failed: %d", ret);
845 return ret;
846 }
847
848 *ireg = adapter->hw_regs[card->reg->host_intstatus];
849 BT_DBG("hw_regs[%#x]=%#x", card->reg->host_intstatus, *ireg);
850
851 return 0;
852}
853
854static int btmrvl_sdio_write_to_clear(struct btmrvl_sdio_card *card, u8 *ireg)
855{
856 int ret;
857
858 *ireg = sdio_readb(card->func, card->reg->host_intstatus, &ret);
859 if (ret) {
860 BT_ERR("sdio_readb: read int status failed: %d", ret);
861 return ret;
862 }
863
864 if (*ireg) {
865 /*
866 * DN_LD_HOST_INT_STATUS and/or UP_LD_HOST_INT_STATUS
867 * Clear the interrupt status register and re-enable the
868 * interrupt.
869 */
870 BT_DBG("int_status = 0x%x", *ireg);
871
872 sdio_writeb(card->func, ~(*ireg) & (DN_LD_HOST_INT_STATUS |
873 UP_LD_HOST_INT_STATUS),
874 card->reg->host_intstatus, &ret);
875 if (ret) {
876 BT_ERR("sdio_writeb: clear int status failed: %d", ret);
877 return ret;
878 }
879 }
880
881 return 0;
882}
883
884static void btmrvl_sdio_interrupt(struct sdio_func *func)
885{
886 struct btmrvl_private *priv;
887 struct btmrvl_sdio_card *card;
888 ulong flags;
889 u8 ireg = 0;
890 int ret;
891
892 card = sdio_get_drvdata(func);
893 if (!card || !card->priv) {
894 BT_ERR("sbi_interrupt(%p) card or priv is NULL, card=%p",
895 func, card);
896 return;
897 }
898
899 priv = card->priv;
900
901 if (priv->surprise_removed)
902 return;
903
904 if (card->reg->int_read_to_clear)
905 ret = btmrvl_sdio_read_to_clear(card, &ireg);
906 else
907 ret = btmrvl_sdio_write_to_clear(card, &ireg);
908
909 if (ret)
910 return;
911
912 spin_lock_irqsave(&priv->driver_lock, flags);
913 sdio_ireg |= ireg;
914 spin_unlock_irqrestore(&priv->driver_lock, flags);
915
916 btmrvl_interrupt(priv);
917}
918
919static int btmrvl_sdio_register_dev(struct btmrvl_sdio_card *card)
920{
921 struct sdio_func *func;
922 u8 reg;
923 int ret;
924
925 if (!card || !card->func) {
926 BT_ERR("Error: card or function is NULL!");
927 ret = -EINVAL;
928 goto failed;
929 }
930
931 func = card->func;
932
933 sdio_claim_host(func);
934
935 ret = sdio_enable_func(func);
936 if (ret) {
937 BT_ERR("sdio_enable_func() failed: ret=%d", ret);
938 ret = -EIO;
939 goto release_host;
940 }
941
942 ret = sdio_claim_irq(func, btmrvl_sdio_interrupt);
943 if (ret) {
944 BT_ERR("sdio_claim_irq failed: ret=%d", ret);
945 ret = -EIO;
946 goto disable_func;
947 }
948
949 ret = sdio_set_block_size(card->func, SDIO_BLOCK_SIZE);
950 if (ret) {
951 BT_ERR("cannot set SDIO block size");
952 ret = -EIO;
953 goto release_irq;
954 }
955
956 reg = sdio_readb(func, card->reg->io_port_0, &ret);
957 if (ret < 0) {
958 ret = -EIO;
959 goto release_irq;
960 }
961
962 card->ioport = reg;
963
964 reg = sdio_readb(func, card->reg->io_port_1, &ret);
965 if (ret < 0) {
966 ret = -EIO;
967 goto release_irq;
968 }
969
970 card->ioport |= (reg << 8);
971
972 reg = sdio_readb(func, card->reg->io_port_2, &ret);
973 if (ret < 0) {
974 ret = -EIO;
975 goto release_irq;
976 }
977
978 card->ioport |= (reg << 16);
979
980 BT_DBG("SDIO FUNC%d IO port: 0x%x", func->num, card->ioport);
981
982 if (card->reg->int_read_to_clear) {
983 reg = sdio_readb(func, card->reg->host_int_rsr, &ret);
984 if (ret < 0) {
985 ret = -EIO;
986 goto release_irq;
987 }
988 sdio_writeb(func, reg | 0x3f, card->reg->host_int_rsr, &ret);
989 if (ret < 0) {
990 ret = -EIO;
991 goto release_irq;
992 }
993
994 reg = sdio_readb(func, card->reg->card_misc_cfg, &ret);
995 if (ret < 0) {
996 ret = -EIO;
997 goto release_irq;
998 }
999 sdio_writeb(func, reg | 0x10, card->reg->card_misc_cfg, &ret);
1000 if (ret < 0) {
1001 ret = -EIO;
1002 goto release_irq;
1003 }
1004 }
1005
1006 sdio_set_drvdata(func, card);
1007
1008 sdio_release_host(func);
1009
1010 return 0;
1011
1012release_irq:
1013 sdio_release_irq(func);
1014
1015disable_func:
1016 sdio_disable_func(func);
1017
1018release_host:
1019 sdio_release_host(func);
1020
1021failed:
1022 return ret;
1023}
1024
1025static int btmrvl_sdio_unregister_dev(struct btmrvl_sdio_card *card)
1026{
1027 if (card && card->func) {
1028 sdio_claim_host(card->func);
1029 sdio_release_irq(card->func);
1030 sdio_disable_func(card->func);
1031 sdio_release_host(card->func);
1032 sdio_set_drvdata(card->func, NULL);
1033 }
1034
1035 return 0;
1036}
1037
1038static int btmrvl_sdio_enable_host_int(struct btmrvl_sdio_card *card)
1039{
1040 int ret;
1041
1042 if (!card || !card->func)
1043 return -EINVAL;
1044
1045 sdio_claim_host(card->func);
1046
1047 ret = btmrvl_sdio_enable_host_int_mask(card, HIM_ENABLE);
1048
1049 btmrvl_sdio_get_rx_unit(card);
1050
1051 sdio_release_host(card->func);
1052
1053 return ret;
1054}
1055
1056static int btmrvl_sdio_disable_host_int(struct btmrvl_sdio_card *card)
1057{
1058 int ret;
1059
1060 if (!card || !card->func)
1061 return -EINVAL;
1062
1063 sdio_claim_host(card->func);
1064
1065 ret = btmrvl_sdio_disable_host_int_mask(card, HIM_DISABLE);
1066
1067 sdio_release_host(card->func);
1068
1069 return ret;
1070}
1071
1072static int btmrvl_sdio_host_to_card(struct btmrvl_private *priv,
1073 u8 *payload, u16 nb)
1074{
1075 struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
1076 int ret = 0;
1077 int blksz;
1078 int i = 0;
1079 u8 *buf = NULL;
1080 void *tmpbuf = NULL;
1081 int tmpbufsz;
1082
1083 if (!card || !card->func) {
1084 BT_ERR("card or function is NULL!");
1085 return -EINVAL;
1086 }
1087
1088 blksz = DIV_ROUND_UP(nb, SDIO_BLOCK_SIZE) * SDIO_BLOCK_SIZE;
1089
1090 buf = payload;
1091 if ((unsigned long) payload & (BTSDIO_DMA_ALIGN - 1) ||
1092 nb < blksz) {
1093 tmpbufsz = ALIGN_SZ(blksz, BTSDIO_DMA_ALIGN) +
1094 BTSDIO_DMA_ALIGN;
1095 tmpbuf = kzalloc(tmpbufsz, GFP_KERNEL);
1096 if (!tmpbuf)
1097 return -ENOMEM;
1098 buf = (u8 *) ALIGN_ADDR(tmpbuf, BTSDIO_DMA_ALIGN);
1099 memcpy(buf, payload, nb);
1100 }
1101
1102 sdio_claim_host(card->func);
1103
1104 do {
1105 /* Transfer data to card */
1106 ret = sdio_writesb(card->func, card->ioport, buf,
1107 blksz);
1108 if (ret < 0) {
1109 i++;
1110 BT_ERR("i=%d writesb failed: %d", i, ret);
1111 BT_ERR("hex: %*ph", nb, payload);
1112 ret = -EIO;
1113 if (i > MAX_WRITE_IOMEM_RETRY)
1114 goto exit;
1115 }
1116 } while (ret);
1117
1118 priv->btmrvl_dev.tx_dnld_rdy = false;
1119
1120exit:
1121 sdio_release_host(card->func);
1122 kfree(tmpbuf);
1123
1124 return ret;
1125}
1126
1127static int btmrvl_sdio_download_fw(struct btmrvl_sdio_card *card)
1128{
1129 int ret;
1130 u8 fws0;
1131 int pollnum = MAX_POLL_TRIES;
1132
1133 if (!card || !card->func) {
1134 BT_ERR("card or function is NULL!");
1135 return -EINVAL;
1136 }
1137
1138 if (!btmrvl_sdio_verify_fw_download(card, 1)) {
1139 BT_DBG("Firmware already downloaded!");
1140 return 0;
1141 }
1142
1143 sdio_claim_host(card->func);
1144
1145 /* Check if other function driver is downloading the firmware */
1146 fws0 = sdio_readb(card->func, card->reg->card_fw_status0, &ret);
1147 if (ret) {
1148 BT_ERR("Failed to read FW downloading status!");
1149 ret = -EIO;
1150 goto done;
1151 }
1152 if (fws0) {
1153 BT_DBG("BT not the winner (%#x). Skip FW downloading", fws0);
1154
1155 /* Give other function more time to download the firmware */
1156 pollnum *= 10;
1157 } else {
1158 if (card->helper) {
1159 ret = btmrvl_sdio_download_helper(card);
1160 if (ret) {
1161 BT_ERR("Failed to download helper!");
1162 ret = -EIO;
1163 goto done;
1164 }
1165 }
1166
1167 if (btmrvl_sdio_download_fw_w_helper(card)) {
1168 BT_ERR("Failed to download firmware!");
1169 ret = -EIO;
1170 goto done;
1171 }
1172 }
1173
1174 /*
1175 * winner or not, with this test the FW synchronizes when the
1176 * module can continue its initialization
1177 */
1178 if (btmrvl_sdio_verify_fw_download(card, pollnum)) {
1179 BT_ERR("FW failed to be active in time!");
1180 ret = -ETIMEDOUT;
1181 goto done;
1182 }
1183
1184 sdio_release_host(card->func);
1185
1186 return 0;
1187
1188done:
1189 sdio_release_host(card->func);
1190 return ret;
1191}
1192
1193static int btmrvl_sdio_wakeup_fw(struct btmrvl_private *priv)
1194{
1195 struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
1196 int ret = 0;
1197
1198 if (!card || !card->func) {
1199 BT_ERR("card or function is NULL!");
1200 return -EINVAL;
1201 }
1202
1203 sdio_claim_host(card->func);
1204
1205 sdio_writeb(card->func, HOST_POWER_UP, card->reg->cfg, &ret);
1206
1207 sdio_release_host(card->func);
1208
1209 BT_DBG("wake up firmware");
1210
1211 return ret;
1212}
1213
1214static void btmrvl_sdio_dump_regs(struct btmrvl_private *priv)
1215{
1216 struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
1217 int ret = 0;
1218 unsigned int reg, reg_start, reg_end;
1219 char buf[256], *ptr;
1220 u8 loop, func, data;
1221 int MAX_LOOP = 2;
1222
1223 btmrvl_sdio_wakeup_fw(priv);
1224 sdio_claim_host(card->func);
1225
1226 for (loop = 0; loop < MAX_LOOP; loop++) {
1227 memset(buf, 0, sizeof(buf));
1228 ptr = buf;
1229
1230 if (loop == 0) {
1231 /* Read the registers of SDIO function0 */
1232 func = loop;
1233 reg_start = 0;
1234 reg_end = 9;
1235 } else {
1236 func = 2;
1237 reg_start = 0;
1238 reg_end = 0x09;
1239 }
1240
1241 ptr += sprintf(ptr, "SDIO Func%d (%#x-%#x): ",
1242 func, reg_start, reg_end);
1243 for (reg = reg_start; reg <= reg_end; reg++) {
1244 if (func == 0)
1245 data = sdio_f0_readb(card->func, reg, &ret);
1246 else
1247 data = sdio_readb(card->func, reg, &ret);
1248
1249 if (!ret) {
1250 ptr += sprintf(ptr, "%02x ", data);
1251 } else {
1252 ptr += sprintf(ptr, "ERR");
1253 break;
1254 }
1255 }
1256
1257 BT_INFO("%s", buf);
1258 }
1259
1260 sdio_release_host(card->func);
1261}
1262
1263/* This function read/write firmware */
1264static enum
1265rdwr_status btmrvl_sdio_rdwr_firmware(struct btmrvl_private *priv,
1266 u8 doneflag)
1267{
1268 struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
1269 int ret, tries;
1270 u8 ctrl_data = 0;
1271
1272 sdio_writeb(card->func, FW_DUMP_HOST_READY, card->reg->fw_dump_ctrl,
1273 &ret);
1274
1275 if (ret) {
1276 BT_ERR("SDIO write err");
1277 return RDWR_STATUS_FAILURE;
1278 }
1279
1280 for (tries = 0; tries < MAX_POLL_TRIES; tries++) {
1281 ctrl_data = sdio_readb(card->func, card->reg->fw_dump_ctrl,
1282 &ret);
1283
1284 if (ret) {
1285 BT_ERR("SDIO read err");
1286 return RDWR_STATUS_FAILURE;
1287 }
1288
1289 if (ctrl_data == FW_DUMP_DONE)
1290 break;
1291 if (doneflag && ctrl_data == doneflag)
1292 return RDWR_STATUS_DONE;
1293 if (ctrl_data != FW_DUMP_HOST_READY) {
1294 BT_INFO("The ctrl reg was changed, re-try again!");
1295 sdio_writeb(card->func, FW_DUMP_HOST_READY,
1296 card->reg->fw_dump_ctrl, &ret);
1297 if (ret) {
1298 BT_ERR("SDIO write err");
1299 return RDWR_STATUS_FAILURE;
1300 }
1301 }
1302 usleep_range(100, 200);
1303 }
1304
1305 if (ctrl_data == FW_DUMP_HOST_READY) {
1306 BT_ERR("Fail to pull ctrl_data");
1307 return RDWR_STATUS_FAILURE;
1308 }
1309
1310 return RDWR_STATUS_SUCCESS;
1311}
1312
1313/* This function dump sdio register and memory data */
1314static void btmrvl_sdio_dump_firmware(struct btmrvl_private *priv)
1315{
1316 struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
1317 int ret = 0;
1318 unsigned int reg, reg_start, reg_end;
1319 enum rdwr_status stat;
1320 u8 *dbg_ptr, *end_ptr, *fw_dump_data, *fw_dump_ptr;
1321 u8 dump_num = 0, idx, i, read_reg, doneflag = 0;
1322 u32 memory_size, fw_dump_len = 0;
1323
1324 /* dump sdio register first */
1325 btmrvl_sdio_dump_regs(priv);
1326
1327 if (!card->supports_fw_dump) {
1328 BT_ERR("Firmware dump not supported for this card!");
1329 return;
1330 }
1331
1332 for (idx = 0; idx < ARRAY_SIZE(mem_type_mapping_tbl); idx++) {
1333 struct memory_type_mapping *entry = &mem_type_mapping_tbl[idx];
1334
1335 if (entry->mem_ptr) {
1336 vfree(entry->mem_ptr);
1337 entry->mem_ptr = NULL;
1338 }
1339 entry->mem_size = 0;
1340 }
1341
1342 btmrvl_sdio_wakeup_fw(priv);
1343 sdio_claim_host(card->func);
1344
1345 BT_INFO("== btmrvl firmware dump start ==");
1346
1347 stat = btmrvl_sdio_rdwr_firmware(priv, doneflag);
1348 if (stat == RDWR_STATUS_FAILURE)
1349 goto done;
1350
1351 reg = card->reg->fw_dump_start;
1352 /* Read the number of the memories which will dump */
1353 dump_num = sdio_readb(card->func, reg, &ret);
1354
1355 if (ret) {
1356 BT_ERR("SDIO read memory length err");
1357 goto done;
1358 }
1359
1360 /* Read the length of every memory which will dump */
1361 for (idx = 0; idx < dump_num; idx++) {
1362 struct memory_type_mapping *entry = &mem_type_mapping_tbl[idx];
1363
1364 stat = btmrvl_sdio_rdwr_firmware(priv, doneflag);
1365 if (stat == RDWR_STATUS_FAILURE)
1366 goto done;
1367
1368 memory_size = 0;
1369 reg = card->reg->fw_dump_start;
1370 for (i = 0; i < 4; i++) {
1371 read_reg = sdio_readb(card->func, reg, &ret);
1372 if (ret) {
1373 BT_ERR("SDIO read err");
1374 goto done;
1375 }
1376 memory_size |= (read_reg << i*8);
1377 reg++;
1378 }
1379
1380 if (memory_size == 0) {
1381 BT_INFO("Firmware dump finished!");
1382 sdio_writeb(card->func, FW_DUMP_READ_DONE,
1383 card->reg->fw_dump_ctrl, &ret);
1384 if (ret) {
1385 BT_ERR("SDIO Write MEMDUMP_FINISH ERR");
1386 goto done;
1387 }
1388 break;
1389 }
1390
1391 BT_INFO("%s_SIZE=0x%x", entry->mem_name, memory_size);
1392 entry->mem_ptr = vzalloc(memory_size + 1);
1393 entry->mem_size = memory_size;
1394 if (!entry->mem_ptr) {
1395 BT_ERR("Vzalloc %s failed", entry->mem_name);
1396 goto done;
1397 }
1398
1399 fw_dump_len += (strlen("========Start dump ") +
1400 strlen(entry->mem_name) +
1401 strlen("========\n") +
1402 (memory_size + 1) +
1403 strlen("\n========End dump========\n"));
1404
1405 dbg_ptr = entry->mem_ptr;
1406 end_ptr = dbg_ptr + memory_size;
1407
1408 doneflag = entry->done_flag;
1409 BT_INFO("Start %s output, please wait...",
1410 entry->mem_name);
1411
1412 do {
1413 stat = btmrvl_sdio_rdwr_firmware(priv, doneflag);
1414 if (stat == RDWR_STATUS_FAILURE)
1415 goto done;
1416
1417 reg_start = card->reg->fw_dump_start;
1418 reg_end = card->reg->fw_dump_end;
1419 for (reg = reg_start; reg <= reg_end; reg++) {
1420 *dbg_ptr = sdio_readb(card->func, reg, &ret);
1421 if (ret) {
1422 BT_ERR("SDIO read err");
1423 goto done;
1424 }
1425 if (dbg_ptr < end_ptr)
1426 dbg_ptr++;
1427 else
1428 BT_ERR("Allocated buffer not enough");
1429 }
1430
1431 if (stat != RDWR_STATUS_DONE) {
1432 continue;
1433 } else {
1434 BT_INFO("%s done: size=0x%tx",
1435 entry->mem_name,
1436 dbg_ptr - entry->mem_ptr);
1437 break;
1438 }
1439 } while (1);
1440 }
1441
1442 BT_INFO("== btmrvl firmware dump end ==");
1443
1444done:
1445 sdio_release_host(card->func);
1446
1447 if (fw_dump_len == 0)
1448 return;
1449
1450 fw_dump_data = vzalloc(fw_dump_len+1);
1451 if (!fw_dump_data) {
1452 BT_ERR("Vzalloc fw_dump_data fail!");
1453 return;
1454 }
1455 fw_dump_ptr = fw_dump_data;
1456
1457 /* Dump all the memory data into single file, a userspace script will
1458 * be used to split all the memory data to multiple files
1459 */
1460 BT_INFO("== btmrvl firmware dump to /sys/class/devcoredump start");
1461 for (idx = 0; idx < dump_num; idx++) {
1462 struct memory_type_mapping *entry = &mem_type_mapping_tbl[idx];
1463
1464 if (entry->mem_ptr) {
1465 strcpy(fw_dump_ptr, "========Start dump ");
1466 fw_dump_ptr += strlen("========Start dump ");
1467
1468 strcpy(fw_dump_ptr, entry->mem_name);
1469 fw_dump_ptr += strlen(entry->mem_name);
1470
1471 strcpy(fw_dump_ptr, "========\n");
1472 fw_dump_ptr += strlen("========\n");
1473
1474 memcpy(fw_dump_ptr, entry->mem_ptr, entry->mem_size);
1475 fw_dump_ptr += entry->mem_size;
1476
1477 strcpy(fw_dump_ptr, "\n========End dump========\n");
1478 fw_dump_ptr += strlen("\n========End dump========\n");
1479
1480 vfree(mem_type_mapping_tbl[idx].mem_ptr);
1481 mem_type_mapping_tbl[idx].mem_ptr = NULL;
1482 }
1483 }
1484
1485 /* fw_dump_data will be free in device coredump release function
1486 * after 5 min
1487 */
1488 dev_coredumpv(&card->func->dev, fw_dump_data, fw_dump_len, GFP_KERNEL);
1489 BT_INFO("== btmrvl firmware dump to /sys/class/devcoredump end");
1490}
1491
1492static int btmrvl_sdio_probe(struct sdio_func *func,
1493 const struct sdio_device_id *id)
1494{
1495 int ret = 0;
1496 struct btmrvl_private *priv = NULL;
1497 struct btmrvl_sdio_card *card = NULL;
1498
1499 BT_INFO("vendor=0x%x, device=0x%x, class=%d, fn=%d",
1500 id->vendor, id->device, id->class, func->num);
1501
1502 card = devm_kzalloc(&func->dev, sizeof(*card), GFP_KERNEL);
1503 if (!card)
1504 return -ENOMEM;
1505
1506 card->func = func;
1507
1508 if (id->driver_data) {
1509 struct btmrvl_sdio_device *data = (void *) id->driver_data;
1510 card->helper = data->helper;
1511 card->firmware = data->firmware;
1512 card->reg = data->reg;
1513 card->sd_blksz_fw_dl = data->sd_blksz_fw_dl;
1514 card->support_pscan_win_report = data->support_pscan_win_report;
1515 card->supports_fw_dump = data->supports_fw_dump;
1516 }
1517
1518 if (btmrvl_sdio_register_dev(card) < 0) {
1519 BT_ERR("Failed to register BT device!");
1520 return -ENODEV;
1521 }
1522
1523 /* Disable the interrupts on the card */
1524 btmrvl_sdio_disable_host_int(card);
1525
1526 if (btmrvl_sdio_download_fw(card)) {
1527 BT_ERR("Downloading firmware failed!");
1528 ret = -ENODEV;
1529 goto unreg_dev;
1530 }
1531
1532 btmrvl_sdio_enable_host_int(card);
1533
1534 /* Device tree node parsing and platform specific configuration*/
1535 btmrvl_sdio_probe_of(&func->dev, card);
1536
1537 priv = btmrvl_add_card(card);
1538 if (!priv) {
1539 BT_ERR("Initializing card failed!");
1540 ret = -ENODEV;
1541 goto disable_host_int;
1542 }
1543
1544 card->priv = priv;
1545
1546 /* Initialize the interface specific function pointers */
1547 priv->hw_host_to_card = btmrvl_sdio_host_to_card;
1548 priv->hw_wakeup_firmware = btmrvl_sdio_wakeup_fw;
1549 priv->hw_process_int_status = btmrvl_sdio_process_int_status;
1550 priv->firmware_dump = btmrvl_sdio_dump_firmware;
1551
1552 if (btmrvl_register_hdev(priv)) {
1553 BT_ERR("Register hdev failed!");
1554 ret = -ENODEV;
1555 goto disable_host_int;
1556 }
1557
1558 return 0;
1559
1560disable_host_int:
1561 btmrvl_sdio_disable_host_int(card);
1562unreg_dev:
1563 btmrvl_sdio_unregister_dev(card);
1564 return ret;
1565}
1566
1567static void btmrvl_sdio_remove(struct sdio_func *func)
1568{
1569 struct btmrvl_sdio_card *card;
1570
1571 if (func) {
1572 card = sdio_get_drvdata(func);
1573 if (card) {
1574 /* Send SHUTDOWN command & disable interrupt
1575 * if user removes the module.
1576 */
1577 if (user_rmmod) {
1578 btmrvl_send_module_cfg_cmd(card->priv,
1579 MODULE_SHUTDOWN_REQ);
1580 btmrvl_sdio_disable_host_int(card);
1581 }
1582 BT_DBG("unregister dev");
1583 card->priv->surprise_removed = true;
1584 btmrvl_sdio_unregister_dev(card);
1585 btmrvl_remove_card(card->priv);
1586 }
1587 }
1588}
1589
1590static int btmrvl_sdio_suspend(struct device *dev)
1591{
1592 struct sdio_func *func = dev_to_sdio_func(dev);
1593 struct btmrvl_sdio_card *card;
1594 struct btmrvl_private *priv;
1595 mmc_pm_flag_t pm_flags;
1596 struct hci_dev *hcidev;
1597
1598 if (func) {
1599 pm_flags = sdio_get_host_pm_caps(func);
1600 BT_DBG("%s: suspend: PM flags = 0x%x", sdio_func_id(func),
1601 pm_flags);
1602 if (!(pm_flags & MMC_PM_KEEP_POWER)) {
1603 BT_ERR("%s: cannot remain alive while suspended",
1604 sdio_func_id(func));
1605 return -ENOSYS;
1606 }
1607 card = sdio_get_drvdata(func);
1608 if (!card || !card->priv) {
1609 BT_ERR("card or priv structure is not valid");
1610 return 0;
1611 }
1612 } else {
1613 BT_ERR("sdio_func is not specified");
1614 return 0;
1615 }
1616
1617 /* Enable platform specific wakeup interrupt */
1618 if (card->plt_wake_cfg && card->plt_wake_cfg->irq_bt >= 0) {
1619 card->plt_wake_cfg->wake_by_bt = false;
1620 enable_irq(card->plt_wake_cfg->irq_bt);
1621 enable_irq_wake(card->plt_wake_cfg->irq_bt);
1622 }
1623
1624 priv = card->priv;
1625 priv->adapter->is_suspending = true;
1626 hcidev = priv->btmrvl_dev.hcidev;
1627 BT_DBG("%s: SDIO suspend", hcidev->name);
1628 hci_suspend_dev(hcidev);
1629
1630 if (priv->adapter->hs_state != HS_ACTIVATED) {
1631 if (btmrvl_enable_hs(priv)) {
1632 BT_ERR("HS not activated, suspend failed!");
1633 /* Disable platform specific wakeup interrupt */
1634 if (card->plt_wake_cfg &&
1635 card->plt_wake_cfg->irq_bt >= 0) {
1636 disable_irq_wake(card->plt_wake_cfg->irq_bt);
1637 disable_irq(card->plt_wake_cfg->irq_bt);
1638 }
1639
1640 priv->adapter->is_suspending = false;
1641 return -EBUSY;
1642 }
1643 }
1644
1645 priv->adapter->is_suspending = false;
1646 priv->adapter->is_suspended = true;
1647
1648 /* We will keep the power when hs enabled successfully */
1649 if (priv->adapter->hs_state == HS_ACTIVATED) {
1650 BT_DBG("suspend with MMC_PM_KEEP_POWER");
1651 return sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER);
1652 }
1653
1654 BT_DBG("suspend without MMC_PM_KEEP_POWER");
1655 return 0;
1656}
1657
1658static int btmrvl_sdio_resume(struct device *dev)
1659{
1660 struct sdio_func *func = dev_to_sdio_func(dev);
1661 struct btmrvl_sdio_card *card;
1662 struct btmrvl_private *priv;
1663 mmc_pm_flag_t pm_flags;
1664 struct hci_dev *hcidev;
1665
1666 if (func) {
1667 pm_flags = sdio_get_host_pm_caps(func);
1668 BT_DBG("%s: resume: PM flags = 0x%x", sdio_func_id(func),
1669 pm_flags);
1670 card = sdio_get_drvdata(func);
1671 if (!card || !card->priv) {
1672 BT_ERR("card or priv structure is not valid");
1673 return 0;
1674 }
1675 } else {
1676 BT_ERR("sdio_func is not specified");
1677 return 0;
1678 }
1679 priv = card->priv;
1680
1681 if (!priv->adapter->is_suspended) {
1682 BT_DBG("device already resumed");
1683 return 0;
1684 }
1685
1686 priv->hw_wakeup_firmware(priv);
1687 priv->adapter->hs_state = HS_DEACTIVATED;
1688 hcidev = priv->btmrvl_dev.hcidev;
1689 BT_DBG("%s: HS DEACTIVATED in resume!", hcidev->name);
1690 priv->adapter->is_suspended = false;
1691 BT_DBG("%s: SDIO resume", hcidev->name);
1692 hci_resume_dev(hcidev);
1693
1694 /* Disable platform specific wakeup interrupt */
1695 if (card->plt_wake_cfg && card->plt_wake_cfg->irq_bt >= 0) {
1696 disable_irq_wake(card->plt_wake_cfg->irq_bt);
1697 disable_irq(card->plt_wake_cfg->irq_bt);
1698 if (card->plt_wake_cfg->wake_by_bt)
1699 /* Undo our disable, since interrupt handler already
1700 * did this.
1701 */
1702 enable_irq(card->plt_wake_cfg->irq_bt);
1703 }
1704
1705 return 0;
1706}
1707
1708static const struct dev_pm_ops btmrvl_sdio_pm_ops = {
1709 .suspend = btmrvl_sdio_suspend,
1710 .resume = btmrvl_sdio_resume,
1711};
1712
1713static struct sdio_driver bt_mrvl_sdio = {
1714 .name = "btmrvl_sdio",
1715 .id_table = btmrvl_sdio_ids,
1716 .probe = btmrvl_sdio_probe,
1717 .remove = btmrvl_sdio_remove,
1718 .drv = {
1719 .owner = THIS_MODULE,
1720 .pm = &btmrvl_sdio_pm_ops,
1721 }
1722};
1723
1724static int __init btmrvl_sdio_init_module(void)
1725{
1726 if (sdio_register_driver(&bt_mrvl_sdio) != 0) {
1727 BT_ERR("SDIO Driver Registration Failed");
1728 return -ENODEV;
1729 }
1730
1731 /* Clear the flag in case user removes the card. */
1732 user_rmmod = 0;
1733
1734 return 0;
1735}
1736
1737static void __exit btmrvl_sdio_exit_module(void)
1738{
1739 /* Set the flag as user is removing this module. */
1740 user_rmmod = 1;
1741
1742 sdio_unregister_driver(&bt_mrvl_sdio);
1743}
1744
1745module_init(btmrvl_sdio_init_module);
1746module_exit(btmrvl_sdio_exit_module);
1747
1748MODULE_AUTHOR("Marvell International Ltd.");
1749MODULE_DESCRIPTION("Marvell BT-over-SDIO driver ver " VERSION);
1750MODULE_VERSION(VERSION);
1751MODULE_LICENSE("GPL v2");
1752MODULE_FIRMWARE("mrvl/sd8688_helper.bin");
1753MODULE_FIRMWARE("mrvl/sd8688.bin");
1754MODULE_FIRMWARE("mrvl/sd8787_uapsta.bin");
1755MODULE_FIRMWARE("mrvl/sd8797_uapsta.bin");
1756MODULE_FIRMWARE("mrvl/sd8887_uapsta.bin");
1757MODULE_FIRMWARE("mrvl/sd8897_uapsta.bin");
1758MODULE_FIRMWARE("mrvl/sd8997_uapsta.bin");