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 hci_skb_pkt_type(skb) = 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 hci_skb_pkt_type(skb) = 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 ret = -ETIMEDOUT; 1116 goto done; 1117 } 1118 1119 sdio_release_host(card->func); 1120 1121 return 0; 1122 1123 done: 1124 sdio_release_host(card->func); 1125 return ret; 1126 } 1127 1128 static int btmrvl_sdio_wakeup_fw(struct btmrvl_private *priv) 1129 { 1130 struct btmrvl_sdio_card *card = priv->btmrvl_dev.card; 1131 int ret = 0; 1132 1133 if (!card || !card->func) { 1134 BT_ERR("card or function is NULL!"); 1135 return -EINVAL; 1136 } 1137 1138 sdio_claim_host(card->func); 1139 1140 sdio_writeb(card->func, HOST_POWER_UP, card->reg->cfg, &ret); 1141 1142 sdio_release_host(card->func); 1143 1144 BT_DBG("wake up firmware"); 1145 1146 return ret; 1147 } 1148 1149 static void btmrvl_sdio_dump_regs(struct btmrvl_private *priv) 1150 { 1151 struct btmrvl_sdio_card *card = priv->btmrvl_dev.card; 1152 int ret = 0; 1153 unsigned int reg, reg_start, reg_end; 1154 char buf[256], *ptr; 1155 u8 loop, func, data; 1156 int MAX_LOOP = 2; 1157 1158 btmrvl_sdio_wakeup_fw(priv); 1159 sdio_claim_host(card->func); 1160 1161 for (loop = 0; loop < MAX_LOOP; loop++) { 1162 memset(buf, 0, sizeof(buf)); 1163 ptr = buf; 1164 1165 if (loop == 0) { 1166 /* Read the registers of SDIO function0 */ 1167 func = loop; 1168 reg_start = 0; 1169 reg_end = 9; 1170 } else { 1171 func = 2; 1172 reg_start = 0; 1173 reg_end = 0x09; 1174 } 1175 1176 ptr += sprintf(ptr, "SDIO Func%d (%#x-%#x): ", 1177 func, reg_start, reg_end); 1178 for (reg = reg_start; reg <= reg_end; reg++) { 1179 if (func == 0) 1180 data = sdio_f0_readb(card->func, reg, &ret); 1181 else 1182 data = sdio_readb(card->func, reg, &ret); 1183 1184 if (!ret) { 1185 ptr += sprintf(ptr, "%02x ", data); 1186 } else { 1187 ptr += sprintf(ptr, "ERR"); 1188 break; 1189 } 1190 } 1191 1192 BT_INFO("%s", buf); 1193 } 1194 1195 sdio_release_host(card->func); 1196 } 1197 1198 /* This function read/write firmware */ 1199 static enum 1200 rdwr_status btmrvl_sdio_rdwr_firmware(struct btmrvl_private *priv, 1201 u8 doneflag) 1202 { 1203 struct btmrvl_sdio_card *card = priv->btmrvl_dev.card; 1204 int ret, tries; 1205 u8 ctrl_data = 0; 1206 1207 sdio_writeb(card->func, FW_DUMP_HOST_READY, card->reg->fw_dump_ctrl, 1208 &ret); 1209 1210 if (ret) { 1211 BT_ERR("SDIO write err"); 1212 return RDWR_STATUS_FAILURE; 1213 } 1214 1215 for (tries = 0; tries < MAX_POLL_TRIES; tries++) { 1216 ctrl_data = sdio_readb(card->func, card->reg->fw_dump_ctrl, 1217 &ret); 1218 1219 if (ret) { 1220 BT_ERR("SDIO read err"); 1221 return RDWR_STATUS_FAILURE; 1222 } 1223 1224 if (ctrl_data == FW_DUMP_DONE) 1225 break; 1226 if (doneflag && ctrl_data == doneflag) 1227 return RDWR_STATUS_DONE; 1228 if (ctrl_data != FW_DUMP_HOST_READY) { 1229 BT_INFO("The ctrl reg was changed, re-try again!"); 1230 sdio_writeb(card->func, FW_DUMP_HOST_READY, 1231 card->reg->fw_dump_ctrl, &ret); 1232 if (ret) { 1233 BT_ERR("SDIO write err"); 1234 return RDWR_STATUS_FAILURE; 1235 } 1236 } 1237 usleep_range(100, 200); 1238 } 1239 1240 if (ctrl_data == FW_DUMP_HOST_READY) { 1241 BT_ERR("Fail to pull ctrl_data"); 1242 return RDWR_STATUS_FAILURE; 1243 } 1244 1245 return RDWR_STATUS_SUCCESS; 1246 } 1247 1248 /* This function dump sdio register and memory data */ 1249 static void btmrvl_sdio_dump_firmware(struct btmrvl_private *priv) 1250 { 1251 struct btmrvl_sdio_card *card = priv->btmrvl_dev.card; 1252 int ret = 0; 1253 unsigned int reg, reg_start, reg_end; 1254 enum rdwr_status stat; 1255 u8 *dbg_ptr, *end_ptr, *fw_dump_data, *fw_dump_ptr; 1256 u8 dump_num = 0, idx, i, read_reg, doneflag = 0; 1257 u32 memory_size, fw_dump_len = 0; 1258 1259 /* dump sdio register first */ 1260 btmrvl_sdio_dump_regs(priv); 1261 1262 if (!card->supports_fw_dump) { 1263 BT_ERR("Firmware dump not supported for this card!"); 1264 return; 1265 } 1266 1267 for (idx = 0; idx < ARRAY_SIZE(mem_type_mapping_tbl); idx++) { 1268 struct memory_type_mapping *entry = &mem_type_mapping_tbl[idx]; 1269 1270 if (entry->mem_ptr) { 1271 vfree(entry->mem_ptr); 1272 entry->mem_ptr = NULL; 1273 } 1274 entry->mem_size = 0; 1275 } 1276 1277 btmrvl_sdio_wakeup_fw(priv); 1278 sdio_claim_host(card->func); 1279 1280 BT_INFO("== btmrvl firmware dump start =="); 1281 1282 stat = btmrvl_sdio_rdwr_firmware(priv, doneflag); 1283 if (stat == RDWR_STATUS_FAILURE) 1284 goto done; 1285 1286 reg = card->reg->fw_dump_start; 1287 /* Read the number of the memories which will dump */ 1288 dump_num = sdio_readb(card->func, reg, &ret); 1289 1290 if (ret) { 1291 BT_ERR("SDIO read memory length err"); 1292 goto done; 1293 } 1294 1295 /* Read the length of every memory which will dump */ 1296 for (idx = 0; idx < dump_num; idx++) { 1297 struct memory_type_mapping *entry = &mem_type_mapping_tbl[idx]; 1298 1299 stat = btmrvl_sdio_rdwr_firmware(priv, doneflag); 1300 if (stat == RDWR_STATUS_FAILURE) 1301 goto done; 1302 1303 memory_size = 0; 1304 reg = card->reg->fw_dump_start; 1305 for (i = 0; i < 4; i++) { 1306 read_reg = sdio_readb(card->func, reg, &ret); 1307 if (ret) { 1308 BT_ERR("SDIO read err"); 1309 goto done; 1310 } 1311 memory_size |= (read_reg << i*8); 1312 reg++; 1313 } 1314 1315 if (memory_size == 0) { 1316 BT_INFO("Firmware dump finished!"); 1317 sdio_writeb(card->func, FW_DUMP_READ_DONE, 1318 card->reg->fw_dump_ctrl, &ret); 1319 if (ret) { 1320 BT_ERR("SDIO Write MEMDUMP_FINISH ERR"); 1321 goto done; 1322 } 1323 break; 1324 } 1325 1326 BT_INFO("%s_SIZE=0x%x", entry->mem_name, memory_size); 1327 entry->mem_ptr = vzalloc(memory_size + 1); 1328 entry->mem_size = memory_size; 1329 if (!entry->mem_ptr) { 1330 BT_ERR("Vzalloc %s failed", entry->mem_name); 1331 goto done; 1332 } 1333 1334 fw_dump_len += (strlen("========Start dump ") + 1335 strlen(entry->mem_name) + 1336 strlen("========\n") + 1337 (memory_size + 1) + 1338 strlen("\n========End dump========\n")); 1339 1340 dbg_ptr = entry->mem_ptr; 1341 end_ptr = dbg_ptr + memory_size; 1342 1343 doneflag = entry->done_flag; 1344 BT_INFO("Start %s output, please wait...", 1345 entry->mem_name); 1346 1347 do { 1348 stat = btmrvl_sdio_rdwr_firmware(priv, doneflag); 1349 if (stat == RDWR_STATUS_FAILURE) 1350 goto done; 1351 1352 reg_start = card->reg->fw_dump_start; 1353 reg_end = card->reg->fw_dump_end; 1354 for (reg = reg_start; reg <= reg_end; reg++) { 1355 *dbg_ptr = sdio_readb(card->func, reg, &ret); 1356 if (ret) { 1357 BT_ERR("SDIO read err"); 1358 goto done; 1359 } 1360 if (dbg_ptr < end_ptr) 1361 dbg_ptr++; 1362 else 1363 BT_ERR("Allocated buffer not enough"); 1364 } 1365 1366 if (stat != RDWR_STATUS_DONE) { 1367 continue; 1368 } else { 1369 BT_INFO("%s done: size=0x%tx", 1370 entry->mem_name, 1371 dbg_ptr - entry->mem_ptr); 1372 break; 1373 } 1374 } while (1); 1375 } 1376 1377 BT_INFO("== btmrvl firmware dump end =="); 1378 1379 done: 1380 sdio_release_host(card->func); 1381 1382 if (fw_dump_len == 0) 1383 return; 1384 1385 fw_dump_data = vzalloc(fw_dump_len+1); 1386 if (!fw_dump_data) { 1387 BT_ERR("Vzalloc fw_dump_data fail!"); 1388 return; 1389 } 1390 fw_dump_ptr = fw_dump_data; 1391 1392 /* Dump all the memory data into single file, a userspace script will 1393 be used to split all the memory data to multiple files*/ 1394 BT_INFO("== btmrvl firmware dump to /sys/class/devcoredump start"); 1395 for (idx = 0; idx < dump_num; idx++) { 1396 struct memory_type_mapping *entry = &mem_type_mapping_tbl[idx]; 1397 1398 if (entry->mem_ptr) { 1399 strcpy(fw_dump_ptr, "========Start dump "); 1400 fw_dump_ptr += strlen("========Start dump "); 1401 1402 strcpy(fw_dump_ptr, entry->mem_name); 1403 fw_dump_ptr += strlen(entry->mem_name); 1404 1405 strcpy(fw_dump_ptr, "========\n"); 1406 fw_dump_ptr += strlen("========\n"); 1407 1408 memcpy(fw_dump_ptr, entry->mem_ptr, entry->mem_size); 1409 fw_dump_ptr += entry->mem_size; 1410 1411 strcpy(fw_dump_ptr, "\n========End dump========\n"); 1412 fw_dump_ptr += strlen("\n========End dump========\n"); 1413 1414 vfree(mem_type_mapping_tbl[idx].mem_ptr); 1415 mem_type_mapping_tbl[idx].mem_ptr = NULL; 1416 } 1417 } 1418 1419 /* fw_dump_data will be free in device coredump release function 1420 after 5 min*/ 1421 dev_coredumpv(&card->func->dev, fw_dump_data, fw_dump_len, GFP_KERNEL); 1422 BT_INFO("== btmrvl firmware dump to /sys/class/devcoredump end"); 1423 } 1424 1425 static int btmrvl_sdio_probe(struct sdio_func *func, 1426 const struct sdio_device_id *id) 1427 { 1428 int ret = 0; 1429 struct btmrvl_private *priv = NULL; 1430 struct btmrvl_sdio_card *card = NULL; 1431 1432 BT_INFO("vendor=0x%x, device=0x%x, class=%d, fn=%d", 1433 id->vendor, id->device, id->class, func->num); 1434 1435 card = devm_kzalloc(&func->dev, sizeof(*card), GFP_KERNEL); 1436 if (!card) 1437 return -ENOMEM; 1438 1439 card->func = func; 1440 1441 if (id->driver_data) { 1442 struct btmrvl_sdio_device *data = (void *) id->driver_data; 1443 card->helper = data->helper; 1444 card->firmware = data->firmware; 1445 card->reg = data->reg; 1446 card->sd_blksz_fw_dl = data->sd_blksz_fw_dl; 1447 card->support_pscan_win_report = data->support_pscan_win_report; 1448 card->supports_fw_dump = data->supports_fw_dump; 1449 } 1450 1451 if (btmrvl_sdio_register_dev(card) < 0) { 1452 BT_ERR("Failed to register BT device!"); 1453 return -ENODEV; 1454 } 1455 1456 /* Disable the interrupts on the card */ 1457 btmrvl_sdio_disable_host_int(card); 1458 1459 if (btmrvl_sdio_download_fw(card)) { 1460 BT_ERR("Downloading firmware failed!"); 1461 ret = -ENODEV; 1462 goto unreg_dev; 1463 } 1464 1465 btmrvl_sdio_enable_host_int(card); 1466 1467 priv = btmrvl_add_card(card); 1468 if (!priv) { 1469 BT_ERR("Initializing card failed!"); 1470 ret = -ENODEV; 1471 goto disable_host_int; 1472 } 1473 1474 card->priv = priv; 1475 1476 /* Initialize the interface specific function pointers */ 1477 priv->hw_host_to_card = btmrvl_sdio_host_to_card; 1478 priv->hw_wakeup_firmware = btmrvl_sdio_wakeup_fw; 1479 priv->hw_process_int_status = btmrvl_sdio_process_int_status; 1480 priv->firmware_dump = btmrvl_sdio_dump_firmware; 1481 1482 if (btmrvl_register_hdev(priv)) { 1483 BT_ERR("Register hdev failed!"); 1484 ret = -ENODEV; 1485 goto disable_host_int; 1486 } 1487 1488 return 0; 1489 1490 disable_host_int: 1491 btmrvl_sdio_disable_host_int(card); 1492 unreg_dev: 1493 btmrvl_sdio_unregister_dev(card); 1494 return ret; 1495 } 1496 1497 static void btmrvl_sdio_remove(struct sdio_func *func) 1498 { 1499 struct btmrvl_sdio_card *card; 1500 1501 if (func) { 1502 card = sdio_get_drvdata(func); 1503 if (card) { 1504 /* Send SHUTDOWN command & disable interrupt 1505 * if user removes the module. 1506 */ 1507 if (user_rmmod) { 1508 btmrvl_send_module_cfg_cmd(card->priv, 1509 MODULE_SHUTDOWN_REQ); 1510 btmrvl_sdio_disable_host_int(card); 1511 } 1512 BT_DBG("unregester dev"); 1513 card->priv->surprise_removed = true; 1514 btmrvl_sdio_unregister_dev(card); 1515 btmrvl_remove_card(card->priv); 1516 } 1517 } 1518 } 1519 1520 static int btmrvl_sdio_suspend(struct device *dev) 1521 { 1522 struct sdio_func *func = dev_to_sdio_func(dev); 1523 struct btmrvl_sdio_card *card; 1524 struct btmrvl_private *priv; 1525 mmc_pm_flag_t pm_flags; 1526 struct hci_dev *hcidev; 1527 1528 if (func) { 1529 pm_flags = sdio_get_host_pm_caps(func); 1530 BT_DBG("%s: suspend: PM flags = 0x%x", sdio_func_id(func), 1531 pm_flags); 1532 if (!(pm_flags & MMC_PM_KEEP_POWER)) { 1533 BT_ERR("%s: cannot remain alive while suspended", 1534 sdio_func_id(func)); 1535 return -ENOSYS; 1536 } 1537 card = sdio_get_drvdata(func); 1538 if (!card || !card->priv) { 1539 BT_ERR("card or priv structure is not valid"); 1540 return 0; 1541 } 1542 } else { 1543 BT_ERR("sdio_func is not specified"); 1544 return 0; 1545 } 1546 1547 priv = card->priv; 1548 priv->adapter->is_suspending = true; 1549 hcidev = priv->btmrvl_dev.hcidev; 1550 BT_DBG("%s: SDIO suspend", hcidev->name); 1551 hci_suspend_dev(hcidev); 1552 1553 if (priv->adapter->hs_state != HS_ACTIVATED) { 1554 if (btmrvl_enable_hs(priv)) { 1555 BT_ERR("HS not actived, suspend failed!"); 1556 return -EBUSY; 1557 } 1558 } 1559 1560 priv->adapter->is_suspending = false; 1561 priv->adapter->is_suspended = true; 1562 1563 /* We will keep the power when hs enabled successfully */ 1564 if (priv->adapter->hs_state == HS_ACTIVATED) { 1565 BT_DBG("suspend with MMC_PM_KEEP_POWER"); 1566 return sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER); 1567 } else { 1568 BT_DBG("suspend without MMC_PM_KEEP_POWER"); 1569 return 0; 1570 } 1571 } 1572 1573 static int btmrvl_sdio_resume(struct device *dev) 1574 { 1575 struct sdio_func *func = dev_to_sdio_func(dev); 1576 struct btmrvl_sdio_card *card; 1577 struct btmrvl_private *priv; 1578 mmc_pm_flag_t pm_flags; 1579 struct hci_dev *hcidev; 1580 1581 if (func) { 1582 pm_flags = sdio_get_host_pm_caps(func); 1583 BT_DBG("%s: resume: PM flags = 0x%x", sdio_func_id(func), 1584 pm_flags); 1585 card = sdio_get_drvdata(func); 1586 if (!card || !card->priv) { 1587 BT_ERR("card or priv structure is not valid"); 1588 return 0; 1589 } 1590 } else { 1591 BT_ERR("sdio_func is not specified"); 1592 return 0; 1593 } 1594 priv = card->priv; 1595 1596 if (!priv->adapter->is_suspended) { 1597 BT_DBG("device already resumed"); 1598 return 0; 1599 } 1600 1601 priv->hw_wakeup_firmware(priv); 1602 priv->adapter->hs_state = HS_DEACTIVATED; 1603 hcidev = priv->btmrvl_dev.hcidev; 1604 BT_DBG("%s: HS DEACTIVATED in resume!", hcidev->name); 1605 priv->adapter->is_suspended = false; 1606 BT_DBG("%s: SDIO resume", hcidev->name); 1607 hci_resume_dev(hcidev); 1608 1609 return 0; 1610 } 1611 1612 static const struct dev_pm_ops btmrvl_sdio_pm_ops = { 1613 .suspend = btmrvl_sdio_suspend, 1614 .resume = btmrvl_sdio_resume, 1615 }; 1616 1617 static struct sdio_driver bt_mrvl_sdio = { 1618 .name = "btmrvl_sdio", 1619 .id_table = btmrvl_sdio_ids, 1620 .probe = btmrvl_sdio_probe, 1621 .remove = btmrvl_sdio_remove, 1622 .drv = { 1623 .owner = THIS_MODULE, 1624 .pm = &btmrvl_sdio_pm_ops, 1625 } 1626 }; 1627 1628 static int __init btmrvl_sdio_init_module(void) 1629 { 1630 if (sdio_register_driver(&bt_mrvl_sdio) != 0) { 1631 BT_ERR("SDIO Driver Registration Failed"); 1632 return -ENODEV; 1633 } 1634 1635 /* Clear the flag in case user removes the card. */ 1636 user_rmmod = 0; 1637 1638 return 0; 1639 } 1640 1641 static void __exit btmrvl_sdio_exit_module(void) 1642 { 1643 /* Set the flag as user is removing this module. */ 1644 user_rmmod = 1; 1645 1646 sdio_unregister_driver(&bt_mrvl_sdio); 1647 } 1648 1649 module_init(btmrvl_sdio_init_module); 1650 module_exit(btmrvl_sdio_exit_module); 1651 1652 MODULE_AUTHOR("Marvell International Ltd."); 1653 MODULE_DESCRIPTION("Marvell BT-over-SDIO driver ver " VERSION); 1654 MODULE_VERSION(VERSION); 1655 MODULE_LICENSE("GPL v2"); 1656 MODULE_FIRMWARE("mrvl/sd8688_helper.bin"); 1657 MODULE_FIRMWARE("mrvl/sd8688.bin"); 1658 MODULE_FIRMWARE("mrvl/sd8787_uapsta.bin"); 1659 MODULE_FIRMWARE("mrvl/sd8797_uapsta.bin"); 1660 MODULE_FIRMWARE("mrvl/sd8887_uapsta.bin"); 1661 MODULE_FIRMWARE("mrvl/sd8897_uapsta.bin"); 1662 MODULE_FIRMWARE("mrvl/sd8997_uapsta.bin"); 1663