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irqchip/s3c24xx: Mark init_eint as __maybe_unused
[linux/fpc-iii.git] / drivers / bluetooth / btmrvl_sdio.c
blob71ea2a3af29340b09ed1a44ccd3f22f840b8e25f
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
24 #include <linux/mmc/sdio_ids.h>
25 #include <linux/mmc/sdio_func.h>
26 #include <linux/module.h>
27 #include <linux/devcoredump.h>
28
29 #include <net/bluetooth/bluetooth.h>
30 #include <net/bluetooth/hci_core.h>
31
32 #include "btmrvl_drv.h"
33 #include "btmrvl_sdio.h"
34
35 #define VERSION "1.0"
36
37 static struct memory_type_mapping mem_type_mapping_tbl[] = {
38 {"ITCM", NULL, 0, 0xF0},
39 {"DTCM", NULL, 0, 0xF1},
40 {"SQRAM", NULL, 0, 0xF2},
41 {"APU", NULL, 0, 0xF3},
42 {"CIU", NULL, 0, 0xF4},
43 {"ICU", NULL, 0, 0xF5},
44 {"MAC", NULL, 0, 0xF6},
45 {"EXT7", NULL, 0, 0xF7},
46 {"EXT8", NULL, 0, 0xF8},
47 {"EXT9", NULL, 0, 0xF9},
48 {"EXT10", NULL, 0, 0xFA},
49 {"EXT11", NULL, 0, 0xFB},
50 {"EXT12", NULL, 0, 0xFC},
51 {"EXT13", NULL, 0, 0xFD},
52 {"EXTLAST", NULL, 0, 0xFE},
53 };
54
55 /* The btmrvl_sdio_remove() callback function is called
56 * when user removes this module from kernel space or ejects
57 * the card from the slot. The driver handles these 2 cases
58 * differently.
59 * If the user is removing the module, a MODULE_SHUTDOWN_REQ
60 * command is sent to firmware and interrupt will be disabled.
61 * If the card is removed, there is no need to send command
62 * or disable interrupt.
63 *
64 * The variable 'user_rmmod' is used to distinguish these two
65 * scenarios. This flag is initialized as FALSE in case the card
66 * is removed, and will be set to TRUE for module removal when
67 * module_exit function is called.
68 */
69 static u8 user_rmmod;
70 static u8 sdio_ireg;
71
72 static const struct btmrvl_sdio_card_reg btmrvl_reg_8688 = {
73 .cfg = 0x03,
74 .host_int_mask = 0x04,
75 .host_intstatus = 0x05,
76 .card_status = 0x20,
77 .sq_read_base_addr_a0 = 0x10,
78 .sq_read_base_addr_a1 = 0x11,
79 .card_fw_status0 = 0x40,
80 .card_fw_status1 = 0x41,
81 .card_rx_len = 0x42,
82 .card_rx_unit = 0x43,
83 .io_port_0 = 0x00,
84 .io_port_1 = 0x01,
85 .io_port_2 = 0x02,
86 .int_read_to_clear = false,
87 };
88 static const struct btmrvl_sdio_card_reg btmrvl_reg_87xx = {
89 .cfg = 0x00,
90 .host_int_mask = 0x02,
91 .host_intstatus = 0x03,
92 .card_status = 0x30,
93 .sq_read_base_addr_a0 = 0x40,
94 .sq_read_base_addr_a1 = 0x41,
95 .card_revision = 0x5c,
96 .card_fw_status0 = 0x60,
97 .card_fw_status1 = 0x61,
98 .card_rx_len = 0x62,
99 .card_rx_unit = 0x63,
100 .io_port_0 = 0x78,
101 .io_port_1 = 0x79,
102 .io_port_2 = 0x7a,
103 .int_read_to_clear = false,
104 };
105
106 static const struct btmrvl_sdio_card_reg btmrvl_reg_8887 = {
107 .cfg = 0x00,
108 .host_int_mask = 0x08,
109 .host_intstatus = 0x0C,
110 .card_status = 0x5C,
111 .sq_read_base_addr_a0 = 0x6C,
112 .sq_read_base_addr_a1 = 0x6D,
113 .card_revision = 0xC8,
114 .card_fw_status0 = 0x88,
115 .card_fw_status1 = 0x89,
116 .card_rx_len = 0x8A,
117 .card_rx_unit = 0x8B,
118 .io_port_0 = 0xE4,
119 .io_port_1 = 0xE5,
120 .io_port_2 = 0xE6,
121 .int_read_to_clear = true,
122 .host_int_rsr = 0x04,
123 .card_misc_cfg = 0xD8,
124 };
125
126 static const struct btmrvl_sdio_card_reg btmrvl_reg_8897 = {
127 .cfg = 0x00,
128 .host_int_mask = 0x02,
129 .host_intstatus = 0x03,
130 .card_status = 0x50,
131 .sq_read_base_addr_a0 = 0x60,
132 .sq_read_base_addr_a1 = 0x61,
133 .card_revision = 0xbc,
134 .card_fw_status0 = 0xc0,
135 .card_fw_status1 = 0xc1,
136 .card_rx_len = 0xc2,
137 .card_rx_unit = 0xc3,
138 .io_port_0 = 0xd8,
139 .io_port_1 = 0xd9,
140 .io_port_2 = 0xda,
141 .int_read_to_clear = true,
142 .host_int_rsr = 0x01,
143 .card_misc_cfg = 0xcc,
144 .fw_dump_ctrl = 0xe2,
145 .fw_dump_start = 0xe3,
146 .fw_dump_end = 0xea,
147 };
148
149 static const struct btmrvl_sdio_card_reg btmrvl_reg_8997 = {
150 .cfg = 0x00,
151 .host_int_mask = 0x08,
152 .host_intstatus = 0x0c,
153 .card_status = 0x5c,
154 .sq_read_base_addr_a0 = 0xf8,
155 .sq_read_base_addr_a1 = 0xf9,
156 .card_revision = 0xc8,
157 .card_fw_status0 = 0xe8,
158 .card_fw_status1 = 0xe9,
159 .card_rx_len = 0xea,
160 .card_rx_unit = 0xeb,
161 .io_port_0 = 0xe4,
162 .io_port_1 = 0xe5,
163 .io_port_2 = 0xe6,
164 .int_read_to_clear = true,
165 .host_int_rsr = 0x04,
166 .card_misc_cfg = 0xD8,
167 .fw_dump_ctrl = 0xf0,
168 .fw_dump_start = 0xf1,
169 .fw_dump_end = 0xf8,
170 };
171
172 static const struct btmrvl_sdio_device btmrvl_sdio_sd8688 = {
173 .helper = "mrvl/sd8688_helper.bin",
174 .firmware = "mrvl/sd8688.bin",
175 .reg = &btmrvl_reg_8688,
176 .support_pscan_win_report = false,
177 .sd_blksz_fw_dl = 64,
178 .supports_fw_dump = false,
179 };
180
181 static const struct btmrvl_sdio_device btmrvl_sdio_sd8787 = {
182 .helper = NULL,
183 .firmware = "mrvl/sd8787_uapsta.bin",
184 .reg = &btmrvl_reg_87xx,
185 .support_pscan_win_report = false,
186 .sd_blksz_fw_dl = 256,
187 .supports_fw_dump = false,
188 };
189
190 static const struct btmrvl_sdio_device btmrvl_sdio_sd8797 = {
191 .helper = NULL,
192 .firmware = "mrvl/sd8797_uapsta.bin",
193 .reg = &btmrvl_reg_87xx,
194 .support_pscan_win_report = false,
195 .sd_blksz_fw_dl = 256,
196 .supports_fw_dump = false,
197 };
198
199 static const struct btmrvl_sdio_device btmrvl_sdio_sd8887 = {
200 .helper = NULL,
201 .firmware = "mrvl/sd8887_uapsta.bin",
202 .reg = &btmrvl_reg_8887,
203 .support_pscan_win_report = true,
204 .sd_blksz_fw_dl = 256,
205 .supports_fw_dump = false,
206 };
207
208 static const struct btmrvl_sdio_device btmrvl_sdio_sd8897 = {
209 .helper = NULL,
210 .firmware = "mrvl/sd8897_uapsta.bin",
211 .reg = &btmrvl_reg_8897,
212 .support_pscan_win_report = true,
213 .sd_blksz_fw_dl = 256,
214 .supports_fw_dump = true,
215 };
216
217 static const struct btmrvl_sdio_device btmrvl_sdio_sd8997 = {
218 .helper = NULL,
219 .firmware = "mrvl/sd8997_uapsta.bin",
220 .reg = &btmrvl_reg_8997,
221 .support_pscan_win_report = true,
222 .sd_blksz_fw_dl = 256,
223 .supports_fw_dump = true,
224 };
225
226 static const struct sdio_device_id btmrvl_sdio_ids[] = {
227 /* Marvell SD8688 Bluetooth device */
228 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x9105),
229 .driver_data = (unsigned long)&btmrvl_sdio_sd8688 },
230 /* Marvell SD8787 Bluetooth device */
231 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x911A),
232 .driver_data = (unsigned long)&btmrvl_sdio_sd8787 },
233 /* Marvell SD8787 Bluetooth AMP device */
234 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x911B),
235 .driver_data = (unsigned long)&btmrvl_sdio_sd8787 },
236 /* Marvell SD8797 Bluetooth device */
237 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x912A),
238 .driver_data = (unsigned long)&btmrvl_sdio_sd8797 },
239 /* Marvell SD8887 Bluetooth device */
240 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x9136),
241 .driver_data = (unsigned long)&btmrvl_sdio_sd8887 },
242 /* Marvell SD8897 Bluetooth device */
243 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x912E),
244 .driver_data = (unsigned long)&btmrvl_sdio_sd8897 },
245 /* Marvell SD8997 Bluetooth device */
246 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x9142),
247 .driver_data = (unsigned long)&btmrvl_sdio_sd8997 },
248
249 { } /* Terminating entry */
250 };
251
252 MODULE_DEVICE_TABLE(sdio, btmrvl_sdio_ids);
253
254 static int btmrvl_sdio_get_rx_unit(struct btmrvl_sdio_card *card)
255 {
256 u8 reg;
257 int ret;
258
259 reg = sdio_readb(card->func, card->reg->card_rx_unit, &ret);
260 if (!ret)
261 card->rx_unit = reg;
262
263 return ret;
264 }
265
266 static int btmrvl_sdio_read_fw_status(struct btmrvl_sdio_card *card, u16 *dat)
267 {
268 u8 fws0, fws1;
269 int ret;
270
271 *dat = 0;
272
273 fws0 = sdio_readb(card->func, card->reg->card_fw_status0, &ret);
274 if (ret)
275 return -EIO;
276
277 fws1 = sdio_readb(card->func, card->reg->card_fw_status1, &ret);
278 if (ret)
279 return -EIO;
280
281 *dat = (((u16) fws1) << 8) | fws0;
282
283 return 0;
284 }
285
286 static int btmrvl_sdio_read_rx_len(struct btmrvl_sdio_card *card, u16 *dat)
287 {
288 u8 reg;
289 int ret;
290
291 reg = sdio_readb(card->func, card->reg->card_rx_len, &ret);
292 if (!ret)
293 *dat = (u16) reg << card->rx_unit;
294
295 return ret;
296 }
297
298 static int btmrvl_sdio_enable_host_int_mask(struct btmrvl_sdio_card *card,
299 u8 mask)
300 {
301 int ret;
302
303 sdio_writeb(card->func, mask, card->reg->host_int_mask, &ret);
304 if (ret) {
305 BT_ERR("Unable to enable the host interrupt!");
306 ret = -EIO;
307 }
308
309 return ret;
310 }
311
312 static int btmrvl_sdio_disable_host_int_mask(struct btmrvl_sdio_card *card,
313 u8 mask)
314 {
315 u8 host_int_mask;
316 int ret;
317
318 host_int_mask = sdio_readb(card->func, card->reg->host_int_mask, &ret);
319 if (ret)
320 return -EIO;
321
322 host_int_mask &= ~mask;
323
324 sdio_writeb(card->func, host_int_mask, card->reg->host_int_mask, &ret);
325 if (ret < 0) {
326 BT_ERR("Unable to disable the host interrupt!");
327 return -EIO;
328 }
329
330 return 0;
331 }
332
333 static int btmrvl_sdio_poll_card_status(struct btmrvl_sdio_card *card, u8 bits)
334 {
335 unsigned int tries;
336 u8 status;
337 int ret;
338
339 for (tries = 0; tries < MAX_POLL_TRIES * 1000; tries++) {
340 status = sdio_readb(card->func, card->reg->card_status, &ret);
341 if (ret)
342 goto failed;
343 if ((status & bits) == bits)
344 return ret;
345
346 udelay(1);
347 }
348
349 ret = -ETIMEDOUT;
350
351 failed:
352 BT_ERR("FAILED! ret=%d", ret);
353
354 return ret;
355 }
356
357 static int btmrvl_sdio_verify_fw_download(struct btmrvl_sdio_card *card,
358 int pollnum)
359 {
360 u16 firmwarestat;
361 int tries, ret;
362
363 /* Wait for firmware to become ready */
364 for (tries = 0; tries < pollnum; tries++) {
365 sdio_claim_host(card->func);
366 ret = btmrvl_sdio_read_fw_status(card, &firmwarestat);
367 sdio_release_host(card->func);
368 if (ret < 0)
369 continue;
370
371 if (firmwarestat == FIRMWARE_READY)
372 return 0;
373
374 msleep(10);
375 }
376
377 return -ETIMEDOUT;
378 }
379
380 static int btmrvl_sdio_download_helper(struct btmrvl_sdio_card *card)
381 {
382 const struct firmware *fw_helper = NULL;
383 const u8 *helper = NULL;
384 int ret;
385 void *tmphlprbuf = NULL;
386 int tmphlprbufsz, hlprblknow, helperlen;
387 u8 *helperbuf;
388 u32 tx_len;
389
390 ret = request_firmware(&fw_helper, card->helper,
391 &card->func->dev);
392 if ((ret < 0) || !fw_helper) {
393 BT_ERR("request_firmware(helper) failed, error code = %d",
394 ret);
395 ret = -ENOENT;
396 goto done;
397 }
398
399 helper = fw_helper->data;
400 helperlen = fw_helper->size;
401
402 BT_DBG("Downloading helper image (%d bytes), block size %d bytes",
403 helperlen, SDIO_BLOCK_SIZE);
404
405 tmphlprbufsz = ALIGN_SZ(BTM_UPLD_SIZE, BTSDIO_DMA_ALIGN);
406
407 tmphlprbuf = kzalloc(tmphlprbufsz, GFP_KERNEL);
408 if (!tmphlprbuf) {
409 BT_ERR("Unable to allocate buffer for helper."
410 " Terminating download");
411 ret = -ENOMEM;
412 goto done;
413 }
414
415 helperbuf = (u8 *) ALIGN_ADDR(tmphlprbuf, BTSDIO_DMA_ALIGN);
416
417 /* Perform helper data transfer */
418 tx_len = (FIRMWARE_TRANSFER_NBLOCK * SDIO_BLOCK_SIZE)
419 - SDIO_HEADER_LEN;
420 hlprblknow = 0;
421
422 do {
423 ret = btmrvl_sdio_poll_card_status(card,
424 CARD_IO_READY | DN_LD_CARD_RDY);
425 if (ret < 0) {
426 BT_ERR("Helper download poll status timeout @ %d",
427 hlprblknow);
428 goto done;
429 }
430
431 /* Check if there is more data? */
432 if (hlprblknow >= helperlen)
433 break;
434
435 if (helperlen - hlprblknow < tx_len)
436 tx_len = helperlen - hlprblknow;
437
438 /* Little-endian */
439 helperbuf[0] = ((tx_len & 0x000000ff) >> 0);
440 helperbuf[1] = ((tx_len & 0x0000ff00) >> 8);
441 helperbuf[2] = ((tx_len & 0x00ff0000) >> 16);
442 helperbuf[3] = ((tx_len & 0xff000000) >> 24);
443
444 memcpy(&helperbuf[SDIO_HEADER_LEN], &helper[hlprblknow],
445 tx_len);
446
447 /* Now send the data */
448 ret = sdio_writesb(card->func, card->ioport, helperbuf,
449 FIRMWARE_TRANSFER_NBLOCK * SDIO_BLOCK_SIZE);
450 if (ret < 0) {
451 BT_ERR("IO error during helper download @ %d",
452 hlprblknow);
453 goto done;
454 }
455
456 hlprblknow += tx_len;
457 } while (true);
458
459 BT_DBG("Transferring helper image EOF block");
460
461 memset(helperbuf, 0x0, SDIO_BLOCK_SIZE);
462
463 ret = sdio_writesb(card->func, card->ioport, helperbuf,
464 SDIO_BLOCK_SIZE);
465 if (ret < 0) {
466 BT_ERR("IO error in writing helper image EOF block");
467 goto done;
468 }
469
470 ret = 0;
471
472 done:
473 kfree(tmphlprbuf);
474 release_firmware(fw_helper);
475 return ret;
476 }
477
478 static int btmrvl_sdio_download_fw_w_helper(struct btmrvl_sdio_card *card)
479 {
480 const struct firmware *fw_firmware = NULL;
481 const u8 *firmware = NULL;
482 int firmwarelen, tmpfwbufsz, ret;
483 unsigned int tries, offset;
484 u8 base0, base1;
485 void *tmpfwbuf = NULL;
486 u8 *fwbuf;
487 u16 len, blksz_dl = card->sd_blksz_fw_dl;
488 int txlen = 0, tx_blocks = 0, count = 0;
489
490 ret = request_firmware(&fw_firmware, card->firmware,
491 &card->func->dev);
492 if ((ret < 0) || !fw_firmware) {
493 BT_ERR("request_firmware(firmware) failed, error code = %d",
494 ret);
495 ret = -ENOENT;
496 goto done;
497 }
498
499 firmware = fw_firmware->data;
500 firmwarelen = fw_firmware->size;
501
502 BT_DBG("Downloading FW image (%d bytes)", firmwarelen);
503
504 tmpfwbufsz = ALIGN_SZ(BTM_UPLD_SIZE, BTSDIO_DMA_ALIGN);
505 tmpfwbuf = kzalloc(tmpfwbufsz, GFP_KERNEL);
506 if (!tmpfwbuf) {
507 BT_ERR("Unable to allocate buffer for firmware."
508 " Terminating download");
509 ret = -ENOMEM;
510 goto done;
511 }
512
513 /* Ensure aligned firmware buffer */
514 fwbuf = (u8 *) ALIGN_ADDR(tmpfwbuf, BTSDIO_DMA_ALIGN);
515
516 /* Perform firmware data transfer */
517 offset = 0;
518 do {
519 ret = btmrvl_sdio_poll_card_status(card,
520 CARD_IO_READY | DN_LD_CARD_RDY);
521 if (ret < 0) {
522 BT_ERR("FW download with helper poll status"
523 " timeout @ %d", offset);
524 goto done;
525 }
526
527 /* Check if there is more data ? */
528 if (offset >= firmwarelen)
529 break;
530
531 for (tries = 0; tries < MAX_POLL_TRIES; tries++) {
532 base0 = sdio_readb(card->func,
533 card->reg->sq_read_base_addr_a0, &ret);
534 if (ret) {
535 BT_ERR("BASE0 register read failed:"
536 " base0 = 0x%04X(%d)."
537 " Terminating download",
538 base0, base0);
539 ret = -EIO;
540 goto done;
541 }
542 base1 = sdio_readb(card->func,
543 card->reg->sq_read_base_addr_a1, &ret);
544 if (ret) {
545 BT_ERR("BASE1 register read failed:"
546 " base1 = 0x%04X(%d)."
547 " Terminating download",
548 base1, base1);
549 ret = -EIO;
550 goto done;
551 }
552
553 len = (((u16) base1) << 8) | base0;
554 if (len)
555 break;
556
557 udelay(10);
558 }
559
560 if (!len)
561 break;
562 else if (len > BTM_UPLD_SIZE) {
563 BT_ERR("FW download failure @%d, invalid length %d",
564 offset, len);
565 ret = -EINVAL;
566 goto done;
567 }
568
569 txlen = len;
570
571 if (len & BIT(0)) {
572 count++;
573 if (count > MAX_WRITE_IOMEM_RETRY) {
574 BT_ERR("FW download failure @%d, "
575 "over max retry count", offset);
576 ret = -EIO;
577 goto done;
578 }
579 BT_ERR("FW CRC error indicated by the helper: "
580 "len = 0x%04X, txlen = %d", len, txlen);
581 len &= ~BIT(0);
582 /* Set txlen to 0 so as to resend from same offset */
583 txlen = 0;
584 } else {
585 count = 0;
586
587 /* Last block ? */
588 if (firmwarelen - offset < txlen)
589 txlen = firmwarelen - offset;
590
591 tx_blocks = DIV_ROUND_UP(txlen, blksz_dl);
592
593 memcpy(fwbuf, &firmware[offset], txlen);
594 }
595
596 ret = sdio_writesb(card->func, card->ioport, fwbuf,
597 tx_blocks * blksz_dl);
598
599 if (ret < 0) {
600 BT_ERR("FW download, writesb(%d) failed @%d",
601 count, offset);
602 sdio_writeb(card->func, HOST_CMD53_FIN,
603 card->reg->cfg, &ret);
604 if (ret)
605 BT_ERR("writeb failed (CFG)");
606 }
607
608 offset += txlen;
609 } while (true);
610
611 BT_INFO("FW download over, size %d bytes", offset);
612
613 ret = 0;
614
615 done:
616 kfree(tmpfwbuf);
617 release_firmware(fw_firmware);
618 return ret;
619 }
620
621 static int btmrvl_sdio_card_to_host(struct btmrvl_private *priv)
622 {
623 u16 buf_len = 0;
624 int ret, num_blocks, blksz;
625 struct sk_buff *skb = NULL;
626 u32 type;
627 u8 *payload = NULL;
628 struct hci_dev *hdev = priv->btmrvl_dev.hcidev;
629 struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
630
631 if (!card || !card->func) {
632 BT_ERR("card or function is NULL!");
633 ret = -EINVAL;
634 goto exit;
635 }
636
637 /* Read the length of data to be transferred */
638 ret = btmrvl_sdio_read_rx_len(card, &buf_len);
639 if (ret < 0) {
640 BT_ERR("read rx_len failed");
641 ret = -EIO;
642 goto exit;
643 }
644
645 blksz = SDIO_BLOCK_SIZE;
646 num_blocks = DIV_ROUND_UP(buf_len, blksz);
647
648 if (buf_len <= SDIO_HEADER_LEN
649 || (num_blocks * blksz) > ALLOC_BUF_SIZE) {
650 BT_ERR("invalid packet length: %d", buf_len);
651 ret = -EINVAL;
652 goto exit;
653 }
654
655 /* Allocate buffer */
656 skb = bt_skb_alloc(num_blocks * blksz + BTSDIO_DMA_ALIGN, GFP_ATOMIC);
657 if (!skb) {
658 BT_ERR("No free skb");
659 ret = -ENOMEM;
660 goto exit;
661 }
662
663 if ((unsigned long) skb->data & (BTSDIO_DMA_ALIGN - 1)) {
664 skb_put(skb, (unsigned long) skb->data &
665 (BTSDIO_DMA_ALIGN - 1));
666 skb_pull(skb, (unsigned long) skb->data &
667 (BTSDIO_DMA_ALIGN - 1));
668 }
669
670 payload = skb->data;
671
672 ret = sdio_readsb(card->func, payload, card->ioport,
673 num_blocks * blksz);
674 if (ret < 0) {
675 BT_ERR("readsb failed: %d", ret);
676 ret = -EIO;
677 goto exit;
678 }
679
680 /* This is SDIO specific header length: byte[2][1][0], type: byte[3]
681 * (HCI_COMMAND = 1, ACL_DATA = 2, SCO_DATA = 3, 0xFE = Vendor)
682 */
683
684 buf_len = payload[0];
685 buf_len |= payload[1] << 8;
686 buf_len |= payload[2] << 16;
687
688 if (buf_len > blksz * num_blocks) {
689 BT_ERR("Skip incorrect packet: hdrlen %d buffer %d",
690 buf_len, blksz * num_blocks);
691 ret = -EIO;
692 goto exit;
693 }
694
695 type = payload[3];
696
697 switch (type) {
698 case HCI_ACLDATA_PKT:
699 case HCI_SCODATA_PKT:
700 case HCI_EVENT_PKT:
701 bt_cb(skb)->pkt_type = type;
702 skb_put(skb, buf_len);
703 skb_pull(skb, SDIO_HEADER_LEN);
704
705 if (type == HCI_EVENT_PKT) {
706 if (btmrvl_check_evtpkt(priv, skb))
707 hci_recv_frame(hdev, skb);
708 } else {
709 hci_recv_frame(hdev, skb);
710 }
711
712 hdev->stat.byte_rx += buf_len;
713 break;
714
715 case MRVL_VENDOR_PKT:
716 bt_cb(skb)->pkt_type = HCI_VENDOR_PKT;
717 skb_put(skb, buf_len);
718 skb_pull(skb, SDIO_HEADER_LEN);
719
720 if (btmrvl_process_event(priv, skb))
721 hci_recv_frame(hdev, skb);
722
723 hdev->stat.byte_rx += buf_len;
724 break;
725
726 default:
727 BT_ERR("Unknown packet type:%d", type);
728 BT_ERR("hex: %*ph", blksz * num_blocks, payload);
729
730 kfree_skb(skb);
731 skb = NULL;
732 break;
733 }
734
735 exit:
736 if (ret) {
737 hdev->stat.err_rx++;
738 kfree_skb(skb);
739 }
740
741 return ret;
742 }
743
744 static int btmrvl_sdio_process_int_status(struct btmrvl_private *priv)
745 {
746 ulong flags;
747 u8 ireg;
748 struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
749
750 spin_lock_irqsave(&priv->driver_lock, flags);
751 ireg = sdio_ireg;
752 sdio_ireg = 0;
753 spin_unlock_irqrestore(&priv->driver_lock, flags);
754
755 sdio_claim_host(card->func);
756 if (ireg & DN_LD_HOST_INT_STATUS) {
757 if (priv->btmrvl_dev.tx_dnld_rdy)
758 BT_DBG("tx_done already received: "
759 " int_status=0x%x", ireg);
760 else
761 priv->btmrvl_dev.tx_dnld_rdy = true;
762 }
763
764 if (ireg & UP_LD_HOST_INT_STATUS)
765 btmrvl_sdio_card_to_host(priv);
766
767 sdio_release_host(card->func);
768
769 return 0;
770 }
771
772 static int btmrvl_sdio_read_to_clear(struct btmrvl_sdio_card *card, u8 *ireg)
773 {
774 struct btmrvl_adapter *adapter = card->priv->adapter;
775 int ret;
776
777 ret = sdio_readsb(card->func, adapter->hw_regs, 0, SDIO_BLOCK_SIZE);
778 if (ret) {
779 BT_ERR("sdio_readsb: read int hw_regs failed: %d", ret);
780 return ret;
781 }
782
783 *ireg = adapter->hw_regs[card->reg->host_intstatus];
784 BT_DBG("hw_regs[%#x]=%#x", card->reg->host_intstatus, *ireg);
785
786 return 0;
787 }
788
789 static int btmrvl_sdio_write_to_clear(struct btmrvl_sdio_card *card, u8 *ireg)
790 {
791 int ret;
792
793 *ireg = sdio_readb(card->func, card->reg->host_intstatus, &ret);
794 if (ret) {
795 BT_ERR("sdio_readb: read int status failed: %d", ret);
796 return ret;
797 }
798
799 if (*ireg) {
800 /*
801 * DN_LD_HOST_INT_STATUS and/or UP_LD_HOST_INT_STATUS
802 * Clear the interrupt status register and re-enable the
803 * interrupt.
804 */
805 BT_DBG("int_status = 0x%x", *ireg);
806
807 sdio_writeb(card->func, ~(*ireg) & (DN_LD_HOST_INT_STATUS |
808 UP_LD_HOST_INT_STATUS),
809 card->reg->host_intstatus, &ret);
810 if (ret) {
811 BT_ERR("sdio_writeb: clear int status failed: %d", ret);
812 return ret;
813 }
814 }
815
816 return 0;
817 }
818
819 static void btmrvl_sdio_interrupt(struct sdio_func *func)
820 {
821 struct btmrvl_private *priv;
822 struct btmrvl_sdio_card *card;
823 ulong flags;
824 u8 ireg = 0;
825 int ret;
826
827 card = sdio_get_drvdata(func);
828 if (!card || !card->priv) {
829 BT_ERR("sbi_interrupt(%p) card or priv is NULL, card=%p",
830 func, card);
831 return;
832 }
833
834 priv = card->priv;
835
836 if (priv->surprise_removed)
837 return;
838
839 if (card->reg->int_read_to_clear)
840 ret = btmrvl_sdio_read_to_clear(card, &ireg);
841 else
842 ret = btmrvl_sdio_write_to_clear(card, &ireg);
843
844 if (ret)
845 return;
846
847 spin_lock_irqsave(&priv->driver_lock, flags);
848 sdio_ireg |= ireg;
849 spin_unlock_irqrestore(&priv->driver_lock, flags);
850
851 btmrvl_interrupt(priv);
852 }
853
854 static int btmrvl_sdio_register_dev(struct btmrvl_sdio_card *card)
855 {
856 struct sdio_func *func;
857 u8 reg;
858 int ret = 0;
859
860 if (!card || !card->func) {
861 BT_ERR("Error: card or function is NULL!");
862 ret = -EINVAL;
863 goto failed;
864 }
865
866 func = card->func;
867
868 sdio_claim_host(func);
869
870 ret = sdio_enable_func(func);
871 if (ret) {
872 BT_ERR("sdio_enable_func() failed: ret=%d", ret);
873 ret = -EIO;
874 goto release_host;
875 }
876
877 ret = sdio_claim_irq(func, btmrvl_sdio_interrupt);
878 if (ret) {
879 BT_ERR("sdio_claim_irq failed: ret=%d", ret);
880 ret = -EIO;
881 goto disable_func;
882 }
883
884 ret = sdio_set_block_size(card->func, SDIO_BLOCK_SIZE);
885 if (ret) {
886 BT_ERR("cannot set SDIO block size");
887 ret = -EIO;
888 goto release_irq;
889 }
890
891 reg = sdio_readb(func, card->reg->io_port_0, &ret);
892 if (ret < 0) {
893 ret = -EIO;
894 goto release_irq;
895 }
896
897 card->ioport = reg;
898
899 reg = sdio_readb(func, card->reg->io_port_1, &ret);
900 if (ret < 0) {
901 ret = -EIO;
902 goto release_irq;
903 }
904
905 card->ioport |= (reg << 8);
906
907 reg = sdio_readb(func, card->reg->io_port_2, &ret);
908 if (ret < 0) {
909 ret = -EIO;
910 goto release_irq;
911 }
912
913 card->ioport |= (reg << 16);
914
915 BT_DBG("SDIO FUNC%d IO port: 0x%x", func->num, card->ioport);
916
917 if (card->reg->int_read_to_clear) {
918 reg = sdio_readb(func, card->reg->host_int_rsr, &ret);
919 if (ret < 0) {
920 ret = -EIO;
921 goto release_irq;
922 }
923 sdio_writeb(func, reg | 0x3f, card->reg->host_int_rsr, &ret);
924 if (ret < 0) {
925 ret = -EIO;
926 goto release_irq;
927 }
928
929 reg = sdio_readb(func, card->reg->card_misc_cfg, &ret);
930 if (ret < 0) {
931 ret = -EIO;
932 goto release_irq;
933 }
934 sdio_writeb(func, reg | 0x10, card->reg->card_misc_cfg, &ret);
935 if (ret < 0) {
936 ret = -EIO;
937 goto release_irq;
938 }
939 }
940
941 sdio_set_drvdata(func, card);
942
943 sdio_release_host(func);
944
945 return 0;
946
947 release_irq:
948 sdio_release_irq(func);
949
950 disable_func:
951 sdio_disable_func(func);
952
953 release_host:
954 sdio_release_host(func);
955
956 failed:
957 return ret;
958 }
959
960 static int btmrvl_sdio_unregister_dev(struct btmrvl_sdio_card *card)
961 {
962 if (card && card->func) {
963 sdio_claim_host(card->func);
964 sdio_release_irq(card->func);
965 sdio_disable_func(card->func);
966 sdio_release_host(card->func);
967 sdio_set_drvdata(card->func, NULL);
968 }
969
970 return 0;
971 }
972
973 static int btmrvl_sdio_enable_host_int(struct btmrvl_sdio_card *card)
974 {
975 int ret;
976
977 if (!card || !card->func)
978 return -EINVAL;
979
980 sdio_claim_host(card->func);
981
982 ret = btmrvl_sdio_enable_host_int_mask(card, HIM_ENABLE);
983
984 btmrvl_sdio_get_rx_unit(card);
985
986 sdio_release_host(card->func);
987
988 return ret;
989 }
990
991 static int btmrvl_sdio_disable_host_int(struct btmrvl_sdio_card *card)
992 {
993 int ret;
994
995 if (!card || !card->func)
996 return -EINVAL;
997
998 sdio_claim_host(card->func);
999
1000 ret = btmrvl_sdio_disable_host_int_mask(card, HIM_DISABLE);
1001
1002 sdio_release_host(card->func);
1003
1004 return ret;
1005 }
1006
1007 static int btmrvl_sdio_host_to_card(struct btmrvl_private *priv,
1008 u8 *payload, u16 nb)
1009 {
1010 struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
1011 int ret = 0;
1012 int buf_block_len;
1013 int blksz;
1014 int i = 0;
1015 u8 *buf = NULL;
1016 void *tmpbuf = NULL;
1017 int tmpbufsz;
1018
1019 if (!card || !card->func) {
1020 BT_ERR("card or function is NULL!");
1021 return -EINVAL;
1022 }
1023
1024 buf = payload;
1025 if ((unsigned long) payload & (BTSDIO_DMA_ALIGN - 1)) {
1026 tmpbufsz = ALIGN_SZ(nb, BTSDIO_DMA_ALIGN);
1027 tmpbuf = kzalloc(tmpbufsz, GFP_KERNEL);
1028 if (!tmpbuf)
1029 return -ENOMEM;
1030 buf = (u8 *) ALIGN_ADDR(tmpbuf, BTSDIO_DMA_ALIGN);
1031 memcpy(buf, payload, nb);
1032 }
1033
1034 blksz = SDIO_BLOCK_SIZE;
1035 buf_block_len = DIV_ROUND_UP(nb, blksz);
1036
1037 sdio_claim_host(card->func);
1038
1039 do {
1040 /* Transfer data to card */
1041 ret = sdio_writesb(card->func, card->ioport, buf,
1042 buf_block_len * blksz);
1043 if (ret < 0) {
1044 i++;
1045 BT_ERR("i=%d writesb failed: %d", i, ret);
1046 BT_ERR("hex: %*ph", nb, payload);
1047 ret = -EIO;
1048 if (i > MAX_WRITE_IOMEM_RETRY)
1049 goto exit;
1050 }
1051 } while (ret);
1052
1053 priv->btmrvl_dev.tx_dnld_rdy = false;
1054
1055 exit:
1056 sdio_release_host(card->func);
1057 kfree(tmpbuf);
1058
1059 return ret;
1060 }
1061
1062 static int btmrvl_sdio_download_fw(struct btmrvl_sdio_card *card)
1063 {
1064 int ret;
1065 u8 fws0;
1066 int pollnum = MAX_POLL_TRIES;
1067
1068 if (!card || !card->func) {
1069 BT_ERR("card or function is NULL!");
1070 return -EINVAL;
1071 }
1072
1073 if (!btmrvl_sdio_verify_fw_download(card, 1)) {
1074 BT_DBG("Firmware already downloaded!");
1075 return 0;
1076 }
1077
1078 sdio_claim_host(card->func);
1079
1080 /* Check if other function driver is downloading the firmware */
1081 fws0 = sdio_readb(card->func, card->reg->card_fw_status0, &ret);
1082 if (ret) {
1083 BT_ERR("Failed to read FW downloading status!");
1084 ret = -EIO;
1085 goto done;
1086 }
1087 if (fws0) {
1088 BT_DBG("BT not the winner (%#x). Skip FW downloading", fws0);
1089
1090 /* Give other function more time to download the firmware */
1091 pollnum *= 10;
1092 } else {
1093 if (card->helper) {
1094 ret = btmrvl_sdio_download_helper(card);
1095 if (ret) {
1096 BT_ERR("Failed to download helper!");
1097 ret = -EIO;
1098 goto done;
1099 }
1100 }
1101
1102 if (btmrvl_sdio_download_fw_w_helper(card)) {
1103 BT_ERR("Failed to download firmware!");
1104 ret = -EIO;
1105 goto done;
1106 }
1107 }
1108
1109 /*
1110 * winner or not, with this test the FW synchronizes when the
1111 * module can continue its initialization
1112 */
1113 if (btmrvl_sdio_verify_fw_download(card, pollnum)) {
1114 BT_ERR("FW failed to be active in time!");
1115 return -ETIMEDOUT;
1116 }
1117
1118 sdio_release_host(card->func);
1119
1120 return 0;
1121
1122 done:
1123 sdio_release_host(card->func);
1124 return ret;
1125 }
1126
1127 static int btmrvl_sdio_wakeup_fw(struct btmrvl_private *priv)
1128 {
1129 struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
1130 int ret = 0;
1131
1132 if (!card || !card->func) {
1133 BT_ERR("card or function is NULL!");
1134 return -EINVAL;
1135 }
1136
1137 sdio_claim_host(card->func);
1138
1139 sdio_writeb(card->func, HOST_POWER_UP, card->reg->cfg, &ret);
1140
1141 sdio_release_host(card->func);
1142
1143 BT_DBG("wake up firmware");
1144
1145 return ret;
1146 }
1147
1148 static void btmrvl_sdio_dump_regs(struct btmrvl_private *priv)
1149 {
1150 struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
1151 int ret = 0;
1152 unsigned int reg, reg_start, reg_end;
1153 char buf[256], *ptr;
1154 u8 loop, func, data;
1155 int MAX_LOOP = 2;
1156
1157 btmrvl_sdio_wakeup_fw(priv);
1158 sdio_claim_host(card->func);
1159
1160 for (loop = 0; loop < MAX_LOOP; loop++) {
1161 memset(buf, 0, sizeof(buf));
1162 ptr = buf;
1163
1164 if (loop == 0) {
1165 /* Read the registers of SDIO function0 */
1166 func = loop;
1167 reg_start = 0;
1168 reg_end = 9;
1169 } else {
1170 func = 2;
1171 reg_start = 0;
1172 reg_end = 0x09;
1173 }
1174
1175 ptr += sprintf(ptr, "SDIO Func%d (%#x-%#x): ",
1176 func, reg_start, reg_end);
1177 for (reg = reg_start; reg <= reg_end; reg++) {
1178 if (func == 0)
1179 data = sdio_f0_readb(card->func, reg, &ret);
1180 else
1181 data = sdio_readb(card->func, reg, &ret);
1182
1183 if (!ret) {
1184 ptr += sprintf(ptr, "%02x ", data);
1185 } else {
1186 ptr += sprintf(ptr, "ERR");
1187 break;
1188 }
1189 }
1190
1191 BT_INFO("%s", buf);
1192 }
1193
1194 sdio_release_host(card->func);
1195 }
1196
1197 /* This function read/write firmware */
1198 static enum
1199 rdwr_status btmrvl_sdio_rdwr_firmware(struct btmrvl_private *priv,
1200 u8 doneflag)
1201 {
1202 struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
1203 int ret, tries;
1204 u8 ctrl_data = 0;
1205
1206 sdio_writeb(card->func, FW_DUMP_HOST_READY, card->reg->fw_dump_ctrl,
1207 &ret);
1208
1209 if (ret) {
1210 BT_ERR("SDIO write err");
1211 return RDWR_STATUS_FAILURE;
1212 }
1213
1214 for (tries = 0; tries < MAX_POLL_TRIES; tries++) {
1215 ctrl_data = sdio_readb(card->func, card->reg->fw_dump_ctrl,
1216 &ret);
1217
1218 if (ret) {
1219 BT_ERR("SDIO read err");
1220 return RDWR_STATUS_FAILURE;
1221 }
1222
1223 if (ctrl_data == FW_DUMP_DONE)
1224 break;
1225 if (doneflag && ctrl_data == doneflag)
1226 return RDWR_STATUS_DONE;
1227 if (ctrl_data != FW_DUMP_HOST_READY) {
1228 BT_INFO("The ctrl reg was changed, re-try again!");
1229 sdio_writeb(card->func, FW_DUMP_HOST_READY,
1230 card->reg->fw_dump_ctrl, &ret);
1231 if (ret) {
1232 BT_ERR("SDIO write err");
1233 return RDWR_STATUS_FAILURE;
1234 }
1235 }
1236 usleep_range(100, 200);
1237 }
1238
1239 if (ctrl_data == FW_DUMP_HOST_READY) {
1240 BT_ERR("Fail to pull ctrl_data");
1241 return RDWR_STATUS_FAILURE;
1242 }
1243
1244 return RDWR_STATUS_SUCCESS;
1245 }
1246
1247 /* This function dump sdio register and memory data */
1248 static void btmrvl_sdio_dump_firmware(struct btmrvl_private *priv)
1249 {
1250 struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
1251 int ret = 0;
1252 unsigned int reg, reg_start, reg_end;
1253 enum rdwr_status stat;
1254 u8 *dbg_ptr, *end_ptr, *fw_dump_data, *fw_dump_ptr;
1255 u8 dump_num = 0, idx, i, read_reg, doneflag = 0;
1256 u32 memory_size, fw_dump_len = 0;
1257
1258 /* dump sdio register first */
1259 btmrvl_sdio_dump_regs(priv);
1260
1261 if (!card->supports_fw_dump) {
1262 BT_ERR("Firmware dump not supported for this card!");
1263 return;
1264 }
1265
1266 for (idx = 0; idx < ARRAY_SIZE(mem_type_mapping_tbl); idx++) {
1267 struct memory_type_mapping *entry = &mem_type_mapping_tbl[idx];
1268
1269 if (entry->mem_ptr) {
1270 vfree(entry->mem_ptr);
1271 entry->mem_ptr = NULL;
1272 }
1273 entry->mem_size = 0;
1274 }
1275
1276 btmrvl_sdio_wakeup_fw(priv);
1277 sdio_claim_host(card->func);
1278
1279 BT_INFO("== btmrvl firmware dump start ==");
1280
1281 stat = btmrvl_sdio_rdwr_firmware(priv, doneflag);
1282 if (stat == RDWR_STATUS_FAILURE)
1283 goto done;
1284
1285 reg = card->reg->fw_dump_start;
1286 /* Read the number of the memories which will dump */
1287 dump_num = sdio_readb(card->func, reg, &ret);
1288
1289 if (ret) {
1290 BT_ERR("SDIO read memory length err");
1291 goto done;
1292 }
1293
1294 /* Read the length of every memory which will dump */
1295 for (idx = 0; idx < dump_num; idx++) {
1296 struct memory_type_mapping *entry = &mem_type_mapping_tbl[idx];
1297
1298 stat = btmrvl_sdio_rdwr_firmware(priv, doneflag);
1299 if (stat == RDWR_STATUS_FAILURE)
1300 goto done;
1301
1302 memory_size = 0;
1303 reg = card->reg->fw_dump_start;
1304 for (i = 0; i < 4; i++) {
1305 read_reg = sdio_readb(card->func, reg, &ret);
1306 if (ret) {
1307 BT_ERR("SDIO read err");
1308 goto done;
1309 }
1310 memory_size |= (read_reg << i*8);
1311 reg++;
1312 }
1313
1314 if (memory_size == 0) {
1315 BT_INFO("Firmware dump finished!");
1316 sdio_writeb(card->func, FW_DUMP_READ_DONE,
1317 card->reg->fw_dump_ctrl, &ret);
1318 if (ret) {
1319 BT_ERR("SDIO Write MEMDUMP_FINISH ERR");
1320 goto done;
1321 }
1322 break;
1323 }
1324
1325 BT_INFO("%s_SIZE=0x%x", entry->mem_name, memory_size);
1326 entry->mem_ptr = vzalloc(memory_size + 1);
1327 entry->mem_size = memory_size;
1328 if (!entry->mem_ptr) {
1329 BT_ERR("Vzalloc %s failed", entry->mem_name);
1330 goto done;
1331 }
1332
1333 fw_dump_len += (strlen("========Start dump ") +
1334 strlen(entry->mem_name) +
1335 strlen("========\n") +
1336 (memory_size + 1) +
1337 strlen("\n========End dump========\n"));
1338
1339 dbg_ptr = entry->mem_ptr;
1340 end_ptr = dbg_ptr + memory_size;
1341
1342 doneflag = entry->done_flag;
1343 BT_INFO("Start %s output, please wait...",
1344 entry->mem_name);
1345
1346 do {
1347 stat = btmrvl_sdio_rdwr_firmware(priv, doneflag);
1348 if (stat == RDWR_STATUS_FAILURE)
1349 goto done;
1350
1351 reg_start = card->reg->fw_dump_start;
1352 reg_end = card->reg->fw_dump_end;
1353 for (reg = reg_start; reg <= reg_end; reg++) {
1354 *dbg_ptr = sdio_readb(card->func, reg, &ret);
1355 if (ret) {
1356 BT_ERR("SDIO read err");
1357 goto done;
1358 }
1359 if (dbg_ptr < end_ptr)
1360 dbg_ptr++;
1361 else
1362 BT_ERR("Allocated buffer not enough");
1363 }
1364
1365 if (stat != RDWR_STATUS_DONE) {
1366 continue;
1367 } else {
1368 BT_INFO("%s done: size=0x%tx",
1369 entry->mem_name,
1370 dbg_ptr - entry->mem_ptr);
1371 break;
1372 }
1373 } while (1);
1374 }
1375
1376 BT_INFO("== btmrvl firmware dump end ==");
1377
1378 done:
1379 sdio_release_host(card->func);
1380
1381 if (fw_dump_len == 0)
1382 return;
1383
1384 fw_dump_data = vzalloc(fw_dump_len+1);
1385 if (!fw_dump_data) {
1386 BT_ERR("Vzalloc fw_dump_data fail!");
1387 return;
1388 }
1389 fw_dump_ptr = fw_dump_data;
1390
1391 /* Dump all the memory data into single file, a userspace script will
1392 be used to split all the memory data to multiple files*/
1393 BT_INFO("== btmrvl firmware dump to /sys/class/devcoredump start");
1394 for (idx = 0; idx < dump_num; idx++) {
1395 struct memory_type_mapping *entry = &mem_type_mapping_tbl[idx];
1396
1397 if (entry->mem_ptr) {
1398 strcpy(fw_dump_ptr, "========Start dump ");
1399 fw_dump_ptr += strlen("========Start dump ");
1400
1401 strcpy(fw_dump_ptr, entry->mem_name);
1402 fw_dump_ptr += strlen(entry->mem_name);
1403
1404 strcpy(fw_dump_ptr, "========\n");
1405 fw_dump_ptr += strlen("========\n");
1406
1407 memcpy(fw_dump_ptr, entry->mem_ptr, entry->mem_size);
1408 fw_dump_ptr += entry->mem_size;
1409
1410 strcpy(fw_dump_ptr, "\n========End dump========\n");
1411 fw_dump_ptr += strlen("\n========End dump========\n");
1412
1413 vfree(mem_type_mapping_tbl[idx].mem_ptr);
1414 mem_type_mapping_tbl[idx].mem_ptr = NULL;
1415 }
1416 }
1417
1418 /* fw_dump_data will be free in device coredump release function
1419 after 5 min*/
1420 dev_coredumpv(&card->func->dev, fw_dump_data, fw_dump_len, GFP_KERNEL);
1421 BT_INFO("== btmrvl firmware dump to /sys/class/devcoredump end");
1422 }
1423
1424 static int btmrvl_sdio_probe(struct sdio_func *func,
1425 const struct sdio_device_id *id)
1426 {
1427 int ret = 0;
1428 struct btmrvl_private *priv = NULL;
1429 struct btmrvl_sdio_card *card = NULL;
1430
1431 BT_INFO("vendor=0x%x, device=0x%x, class=%d, fn=%d",
1432 id->vendor, id->device, id->class, func->num);
1433
1434 card = devm_kzalloc(&func->dev, sizeof(*card), GFP_KERNEL);
1435 if (!card)
1436 return -ENOMEM;
1437
1438 card->func = func;
1439
1440 if (id->driver_data) {
1441 struct btmrvl_sdio_device *data = (void *) id->driver_data;
1442 card->helper = data->helper;
1443 card->firmware = data->firmware;
1444 card->reg = data->reg;
1445 card->sd_blksz_fw_dl = data->sd_blksz_fw_dl;
1446 card->support_pscan_win_report = data->support_pscan_win_report;
1447 card->supports_fw_dump = data->supports_fw_dump;
1448 }
1449
1450 if (btmrvl_sdio_register_dev(card) < 0) {
1451 BT_ERR("Failed to register BT device!");
1452 return -ENODEV;
1453 }
1454
1455 /* Disable the interrupts on the card */
1456 btmrvl_sdio_disable_host_int(card);
1457
1458 if (btmrvl_sdio_download_fw(card)) {
1459 BT_ERR("Downloading firmware failed!");
1460 ret = -ENODEV;
1461 goto unreg_dev;
1462 }
1463
1464 btmrvl_sdio_enable_host_int(card);
1465
1466 priv = btmrvl_add_card(card);
1467 if (!priv) {
1468 BT_ERR("Initializing card failed!");
1469 ret = -ENODEV;
1470 goto disable_host_int;
1471 }
1472
1473 card->priv = priv;
1474
1475 /* Initialize the interface specific function pointers */
1476 priv->hw_host_to_card = btmrvl_sdio_host_to_card;
1477 priv->hw_wakeup_firmware = btmrvl_sdio_wakeup_fw;
1478 priv->hw_process_int_status = btmrvl_sdio_process_int_status;
1479 priv->firmware_dump = btmrvl_sdio_dump_firmware;
1480
1481 if (btmrvl_register_hdev(priv)) {
1482 BT_ERR("Register hdev failed!");
1483 ret = -ENODEV;
1484 goto disable_host_int;
1485 }
1486
1487 return 0;
1488
1489 disable_host_int:
1490 btmrvl_sdio_disable_host_int(card);
1491 unreg_dev:
1492 btmrvl_sdio_unregister_dev(card);
1493 return ret;
1494 }
1495
1496 static void btmrvl_sdio_remove(struct sdio_func *func)
1497 {
1498 struct btmrvl_sdio_card *card;
1499
1500 if (func) {
1501 card = sdio_get_drvdata(func);
1502 if (card) {
1503 /* Send SHUTDOWN command & disable interrupt
1504 * if user removes the module.
1505 */
1506 if (user_rmmod) {
1507 btmrvl_send_module_cfg_cmd(card->priv,
1508 MODULE_SHUTDOWN_REQ);
1509 btmrvl_sdio_disable_host_int(card);
1510 }
1511 BT_DBG("unregester dev");
1512 card->priv->surprise_removed = true;
1513 btmrvl_sdio_unregister_dev(card);
1514 btmrvl_remove_card(card->priv);
1515 }
1516 }
1517 }
1518
1519 static int btmrvl_sdio_suspend(struct device *dev)
1520 {
1521 struct sdio_func *func = dev_to_sdio_func(dev);
1522 struct btmrvl_sdio_card *card;
1523 struct btmrvl_private *priv;
1524 mmc_pm_flag_t pm_flags;
1525 struct hci_dev *hcidev;
1526
1527 if (func) {
1528 pm_flags = sdio_get_host_pm_caps(func);
1529 BT_DBG("%s: suspend: PM flags = 0x%x", sdio_func_id(func),
1530 pm_flags);
1531 if (!(pm_flags & MMC_PM_KEEP_POWER)) {
1532 BT_ERR("%s: cannot remain alive while suspended",
1533 sdio_func_id(func));
1534 return -ENOSYS;
1535 }
1536 card = sdio_get_drvdata(func);
1537 if (!card || !card->priv) {
1538 BT_ERR("card or priv structure is not valid");
1539 return 0;
1540 }
1541 } else {
1542 BT_ERR("sdio_func is not specified");
1543 return 0;
1544 }
1545
1546 priv = card->priv;
1547 hcidev = priv->btmrvl_dev.hcidev;
1548 BT_DBG("%s: SDIO suspend", hcidev->name);
1549 hci_suspend_dev(hcidev);
1550 skb_queue_purge(&priv->adapter->tx_queue);
1551
1552 if (priv->adapter->hs_state != HS_ACTIVATED) {
1553 if (btmrvl_enable_hs(priv)) {
1554 BT_ERR("HS not actived, suspend failed!");
1555 return -EBUSY;
1556 }
1557 }
1558
1559 priv->adapter->is_suspended = true;
1560
1561 /* We will keep the power when hs enabled successfully */
1562 if (priv->adapter->hs_state == HS_ACTIVATED) {
1563 BT_DBG("suspend with MMC_PM_KEEP_POWER");
1564 return sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER);
1565 } else {
1566 BT_DBG("suspend without MMC_PM_KEEP_POWER");
1567 return 0;
1568 }
1569 }
1570
1571 static int btmrvl_sdio_resume(struct device *dev)
1572 {
1573 struct sdio_func *func = dev_to_sdio_func(dev);
1574 struct btmrvl_sdio_card *card;
1575 struct btmrvl_private *priv;
1576 mmc_pm_flag_t pm_flags;
1577 struct hci_dev *hcidev;
1578
1579 if (func) {
1580 pm_flags = sdio_get_host_pm_caps(func);
1581 BT_DBG("%s: resume: PM flags = 0x%x", sdio_func_id(func),
1582 pm_flags);
1583 card = sdio_get_drvdata(func);
1584 if (!card || !card->priv) {
1585 BT_ERR("card or priv structure is not valid");
1586 return 0;
1587 }
1588 } else {
1589 BT_ERR("sdio_func is not specified");
1590 return 0;
1591 }
1592 priv = card->priv;
1593
1594 if (!priv->adapter->is_suspended) {
1595 BT_DBG("device already resumed");
1596 return 0;
1597 }
1598
1599 priv->hw_wakeup_firmware(priv);
1600 priv->adapter->hs_state = HS_DEACTIVATED;
1601 hcidev = priv->btmrvl_dev.hcidev;
1602 BT_DBG("%s: HS DEACTIVATED in resume!", hcidev->name);
1603 priv->adapter->is_suspended = false;
1604 BT_DBG("%s: SDIO resume", hcidev->name);
1605 hci_resume_dev(hcidev);
1606
1607 return 0;
1608 }
1609
1610 static const struct dev_pm_ops btmrvl_sdio_pm_ops = {
1611 .suspend = btmrvl_sdio_suspend,
1612 .resume = btmrvl_sdio_resume,
1613 };
1614
1615 static struct sdio_driver bt_mrvl_sdio = {
1616 .name = "btmrvl_sdio",
1617 .id_table = btmrvl_sdio_ids,
1618 .probe = btmrvl_sdio_probe,
1619 .remove = btmrvl_sdio_remove,
1620 .drv = {
1621 .owner = THIS_MODULE,
1622 .pm = &btmrvl_sdio_pm_ops,
1623 }
1624 };
1625
1626 static int __init btmrvl_sdio_init_module(void)
1627 {
1628 if (sdio_register_driver(&bt_mrvl_sdio) != 0) {
1629 BT_ERR("SDIO Driver Registration Failed");
1630 return -ENODEV;
1631 }
1632
1633 /* Clear the flag in case user removes the card. */
1634 user_rmmod = 0;
1635
1636 return 0;
1637 }
1638
1639 static void __exit btmrvl_sdio_exit_module(void)
1640 {
1641 /* Set the flag as user is removing this module. */
1642 user_rmmod = 1;
1643
1644 sdio_unregister_driver(&bt_mrvl_sdio);
1645 }
1646
1647 module_init(btmrvl_sdio_init_module);
1648 module_exit(btmrvl_sdio_exit_module);
1649
1650 MODULE_AUTHOR("Marvell International Ltd.");
1651 MODULE_DESCRIPTION("Marvell BT-over-SDIO driver ver " VERSION);
1652 MODULE_VERSION(VERSION);
1653 MODULE_LICENSE("GPL v2");
1654 MODULE_FIRMWARE("mrvl/sd8688_helper.bin");
1655 MODULE_FIRMWARE("mrvl/sd8688.bin");
1656 MODULE_FIRMWARE("mrvl/sd8787_uapsta.bin");
1657 MODULE_FIRMWARE("mrvl/sd8797_uapsta.bin");
1658 MODULE_FIRMWARE("mrvl/sd8887_uapsta.bin");
1659 MODULE_FIRMWARE("mrvl/sd8897_uapsta.bin");
1660 MODULE_FIRMWARE("mrvl/sd8997_uapsta.bin");
Linux with added FPC-III support