1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * 4 * Bluetooth support for Broadcom devices 5 * 6 * Copyright (C) 2015 Intel Corporation 7 */ 8 9 #include <linux/module.h> 10 #include <linux/firmware.h> 11 #include <linux/dmi.h> 12 #include <linux/of.h> 13 #include <asm/unaligned.h> 14 15 #include <net/bluetooth/bluetooth.h> 16 #include <net/bluetooth/hci_core.h> 17 18 #include "btbcm.h" 19 20 #define VERSION "0.1" 21 22 #define BDADDR_BCM20702A0 (&(bdaddr_t) {{0x00, 0xa0, 0x02, 0x70, 0x20, 0x00}}) 23 #define BDADDR_BCM20702A1 (&(bdaddr_t) {{0x00, 0x00, 0xa0, 0x02, 0x70, 0x20}}) 24 #define BDADDR_BCM2076B1 (&(bdaddr_t) {{0x79, 0x56, 0x00, 0xa0, 0x76, 0x20}}) 25 #define BDADDR_BCM43430A0 (&(bdaddr_t) {{0xac, 0x1f, 0x12, 0xa0, 0x43, 0x43}}) 26 #define BDADDR_BCM4324B3 (&(bdaddr_t) {{0x00, 0x00, 0x00, 0xb3, 0x24, 0x43}}) 27 #define BDADDR_BCM4330B1 (&(bdaddr_t) {{0x00, 0x00, 0x00, 0xb1, 0x30, 0x43}}) 28 #define BDADDR_BCM4334B0 (&(bdaddr_t) {{0x00, 0x00, 0x00, 0xb0, 0x34, 0x43}}) 29 #define BDADDR_BCM4345C5 (&(bdaddr_t) {{0xac, 0x1f, 0x00, 0xc5, 0x45, 0x43}}) 30 #define BDADDR_BCM43341B (&(bdaddr_t) {{0xac, 0x1f, 0x00, 0x1b, 0x34, 0x43}}) 31 32 #define BCM_FW_NAME_LEN 64 33 #define BCM_FW_NAME_COUNT_MAX 4 34 /* For kmalloc-ing the fw-name array instead of putting it on the stack */ 35 typedef char bcm_fw_name[BCM_FW_NAME_LEN]; 36 37 int btbcm_check_bdaddr(struct hci_dev *hdev) 38 { 39 struct hci_rp_read_bd_addr *bda; 40 struct sk_buff *skb; 41 42 skb = __hci_cmd_sync(hdev, HCI_OP_READ_BD_ADDR, 0, NULL, 43 HCI_INIT_TIMEOUT); 44 if (IS_ERR(skb)) { 45 int err = PTR_ERR(skb); 46 47 bt_dev_err(hdev, "BCM: Reading device address failed (%d)", err); 48 return err; 49 } 50 51 if (skb->len != sizeof(*bda)) { 52 bt_dev_err(hdev, "BCM: Device address length mismatch"); 53 kfree_skb(skb); 54 return -EIO; 55 } 56 57 bda = (struct hci_rp_read_bd_addr *)skb->data; 58 59 /* Check if the address indicates a controller with either an 60 * invalid or default address. In both cases the device needs 61 * to be marked as not having a valid address. 62 * 63 * The address 00:20:70:02:A0:00 indicates a BCM20702A0 controller 64 * with no configured address. 65 * 66 * The address 20:70:02:A0:00:00 indicates a BCM20702A1 controller 67 * with no configured address. 68 * 69 * The address 20:76:A0:00:56:79 indicates a BCM2076B1 controller 70 * with no configured address. 71 * 72 * The address 43:24:B3:00:00:00 indicates a BCM4324B3 controller 73 * with waiting for configuration state. 74 * 75 * The address 43:30:B1:00:00:00 indicates a BCM4330B1 controller 76 * with waiting for configuration state. 77 * 78 * The address 43:43:A0:12:1F:AC indicates a BCM43430A0 controller 79 * with no configured address. 80 */ 81 if (!bacmp(&bda->bdaddr, BDADDR_BCM20702A0) || 82 !bacmp(&bda->bdaddr, BDADDR_BCM20702A1) || 83 !bacmp(&bda->bdaddr, BDADDR_BCM2076B1) || 84 !bacmp(&bda->bdaddr, BDADDR_BCM4324B3) || 85 !bacmp(&bda->bdaddr, BDADDR_BCM4330B1) || 86 !bacmp(&bda->bdaddr, BDADDR_BCM4334B0) || 87 !bacmp(&bda->bdaddr, BDADDR_BCM4345C5) || 88 !bacmp(&bda->bdaddr, BDADDR_BCM43430A0) || 89 !bacmp(&bda->bdaddr, BDADDR_BCM43341B)) { 90 bt_dev_info(hdev, "BCM: Using default device address (%pMR)", 91 &bda->bdaddr); 92 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks); 93 } 94 95 kfree_skb(skb); 96 97 return 0; 98 } 99 EXPORT_SYMBOL_GPL(btbcm_check_bdaddr); 100 101 int btbcm_set_bdaddr(struct hci_dev *hdev, const bdaddr_t *bdaddr) 102 { 103 struct sk_buff *skb; 104 int err; 105 106 skb = __hci_cmd_sync(hdev, 0xfc01, 6, bdaddr, HCI_INIT_TIMEOUT); 107 if (IS_ERR(skb)) { 108 err = PTR_ERR(skb); 109 bt_dev_err(hdev, "BCM: Change address command failed (%d)", err); 110 return err; 111 } 112 kfree_skb(skb); 113 114 return 0; 115 } 116 EXPORT_SYMBOL_GPL(btbcm_set_bdaddr); 117 118 int btbcm_read_pcm_int_params(struct hci_dev *hdev, 119 struct bcm_set_pcm_int_params *params) 120 { 121 struct sk_buff *skb; 122 int err = 0; 123 124 skb = __hci_cmd_sync(hdev, 0xfc1d, 0, NULL, HCI_INIT_TIMEOUT); 125 if (IS_ERR(skb)) { 126 err = PTR_ERR(skb); 127 bt_dev_err(hdev, "BCM: Read PCM int params failed (%d)", err); 128 return err; 129 } 130 131 if (skb->len != 6 || skb->data[0]) { 132 bt_dev_err(hdev, "BCM: Read PCM int params length mismatch"); 133 kfree_skb(skb); 134 return -EIO; 135 } 136 137 if (params) 138 memcpy(params, skb->data + 1, 5); 139 140 kfree_skb(skb); 141 142 return 0; 143 } 144 EXPORT_SYMBOL_GPL(btbcm_read_pcm_int_params); 145 146 int btbcm_write_pcm_int_params(struct hci_dev *hdev, 147 const struct bcm_set_pcm_int_params *params) 148 { 149 struct sk_buff *skb; 150 int err; 151 152 skb = __hci_cmd_sync(hdev, 0xfc1c, 5, params, HCI_INIT_TIMEOUT); 153 if (IS_ERR(skb)) { 154 err = PTR_ERR(skb); 155 bt_dev_err(hdev, "BCM: Write PCM int params failed (%d)", err); 156 return err; 157 } 158 kfree_skb(skb); 159 160 return 0; 161 } 162 EXPORT_SYMBOL_GPL(btbcm_write_pcm_int_params); 163 164 int btbcm_patchram(struct hci_dev *hdev, const struct firmware *fw) 165 { 166 const struct hci_command_hdr *cmd; 167 const u8 *fw_ptr; 168 size_t fw_size; 169 struct sk_buff *skb; 170 u16 opcode; 171 int err = 0; 172 173 /* Start Download */ 174 skb = __hci_cmd_sync(hdev, 0xfc2e, 0, NULL, HCI_INIT_TIMEOUT); 175 if (IS_ERR(skb)) { 176 err = PTR_ERR(skb); 177 bt_dev_err(hdev, "BCM: Download Minidrv command failed (%d)", 178 err); 179 goto done; 180 } 181 kfree_skb(skb); 182 183 /* 50 msec delay after Download Minidrv completes */ 184 msleep(50); 185 186 fw_ptr = fw->data; 187 fw_size = fw->size; 188 189 while (fw_size >= sizeof(*cmd)) { 190 const u8 *cmd_param; 191 192 cmd = (struct hci_command_hdr *)fw_ptr; 193 fw_ptr += sizeof(*cmd); 194 fw_size -= sizeof(*cmd); 195 196 if (fw_size < cmd->plen) { 197 bt_dev_err(hdev, "BCM: Patch is corrupted"); 198 err = -EINVAL; 199 goto done; 200 } 201 202 cmd_param = fw_ptr; 203 fw_ptr += cmd->plen; 204 fw_size -= cmd->plen; 205 206 opcode = le16_to_cpu(cmd->opcode); 207 208 skb = __hci_cmd_sync(hdev, opcode, cmd->plen, cmd_param, 209 HCI_INIT_TIMEOUT); 210 if (IS_ERR(skb)) { 211 err = PTR_ERR(skb); 212 bt_dev_err(hdev, "BCM: Patch command %04x failed (%d)", 213 opcode, err); 214 goto done; 215 } 216 kfree_skb(skb); 217 } 218 219 /* 250 msec delay after Launch Ram completes */ 220 msleep(250); 221 222 done: 223 return err; 224 } 225 EXPORT_SYMBOL(btbcm_patchram); 226 227 static int btbcm_reset(struct hci_dev *hdev) 228 { 229 struct sk_buff *skb; 230 231 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT); 232 if (IS_ERR(skb)) { 233 int err = PTR_ERR(skb); 234 235 bt_dev_err(hdev, "BCM: Reset failed (%d)", err); 236 return err; 237 } 238 kfree_skb(skb); 239 240 /* 100 msec delay for module to complete reset process */ 241 msleep(100); 242 243 return 0; 244 } 245 246 static struct sk_buff *btbcm_read_local_name(struct hci_dev *hdev) 247 { 248 struct sk_buff *skb; 249 250 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_NAME, 0, NULL, 251 HCI_INIT_TIMEOUT); 252 if (IS_ERR(skb)) { 253 bt_dev_err(hdev, "BCM: Reading local name failed (%ld)", 254 PTR_ERR(skb)); 255 return skb; 256 } 257 258 if (skb->len != sizeof(struct hci_rp_read_local_name)) { 259 bt_dev_err(hdev, "BCM: Local name length mismatch"); 260 kfree_skb(skb); 261 return ERR_PTR(-EIO); 262 } 263 264 return skb; 265 } 266 267 static struct sk_buff *btbcm_read_local_version(struct hci_dev *hdev) 268 { 269 struct sk_buff *skb; 270 271 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL, 272 HCI_INIT_TIMEOUT); 273 if (IS_ERR(skb)) { 274 bt_dev_err(hdev, "BCM: Reading local version info failed (%ld)", 275 PTR_ERR(skb)); 276 return skb; 277 } 278 279 if (skb->len != sizeof(struct hci_rp_read_local_version)) { 280 bt_dev_err(hdev, "BCM: Local version length mismatch"); 281 kfree_skb(skb); 282 return ERR_PTR(-EIO); 283 } 284 285 return skb; 286 } 287 288 static struct sk_buff *btbcm_read_verbose_config(struct hci_dev *hdev) 289 { 290 struct sk_buff *skb; 291 292 skb = __hci_cmd_sync(hdev, 0xfc79, 0, NULL, HCI_INIT_TIMEOUT); 293 if (IS_ERR(skb)) { 294 bt_dev_err(hdev, "BCM: Read verbose config info failed (%ld)", 295 PTR_ERR(skb)); 296 return skb; 297 } 298 299 if (skb->len != 7) { 300 bt_dev_err(hdev, "BCM: Verbose config length mismatch"); 301 kfree_skb(skb); 302 return ERR_PTR(-EIO); 303 } 304 305 return skb; 306 } 307 308 static struct sk_buff *btbcm_read_controller_features(struct hci_dev *hdev) 309 { 310 struct sk_buff *skb; 311 312 skb = __hci_cmd_sync(hdev, 0xfc6e, 0, NULL, HCI_INIT_TIMEOUT); 313 if (IS_ERR(skb)) { 314 bt_dev_err(hdev, "BCM: Read controller features failed (%ld)", 315 PTR_ERR(skb)); 316 return skb; 317 } 318 319 if (skb->len != 9) { 320 bt_dev_err(hdev, "BCM: Controller features length mismatch"); 321 kfree_skb(skb); 322 return ERR_PTR(-EIO); 323 } 324 325 return skb; 326 } 327 328 static struct sk_buff *btbcm_read_usb_product(struct hci_dev *hdev) 329 { 330 struct sk_buff *skb; 331 332 skb = __hci_cmd_sync(hdev, 0xfc5a, 0, NULL, HCI_INIT_TIMEOUT); 333 if (IS_ERR(skb)) { 334 bt_dev_err(hdev, "BCM: Read USB product info failed (%ld)", 335 PTR_ERR(skb)); 336 return skb; 337 } 338 339 if (skb->len != 5) { 340 bt_dev_err(hdev, "BCM: USB product length mismatch"); 341 kfree_skb(skb); 342 return ERR_PTR(-EIO); 343 } 344 345 return skb; 346 } 347 348 static const struct dmi_system_id disable_broken_read_transmit_power[] = { 349 { 350 .matches = { 351 DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."), 352 DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro16,1"), 353 }, 354 }, 355 { 356 .matches = { 357 DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."), 358 DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro16,2"), 359 }, 360 }, 361 { 362 .matches = { 363 DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."), 364 DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro16,4"), 365 }, 366 }, 367 { 368 .matches = { 369 DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."), 370 DMI_MATCH(DMI_PRODUCT_NAME, "MacBookAir8,1"), 371 }, 372 }, 373 { 374 .matches = { 375 DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."), 376 DMI_MATCH(DMI_PRODUCT_NAME, "MacBookAir8,2"), 377 }, 378 }, 379 { 380 .matches = { 381 DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."), 382 DMI_MATCH(DMI_PRODUCT_NAME, "iMac20,1"), 383 }, 384 }, 385 { 386 .matches = { 387 DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."), 388 DMI_MATCH(DMI_PRODUCT_NAME, "iMac20,2"), 389 }, 390 }, 391 { } 392 }; 393 394 static int btbcm_read_info(struct hci_dev *hdev) 395 { 396 struct sk_buff *skb; 397 398 /* Read Verbose Config Version Info */ 399 skb = btbcm_read_verbose_config(hdev); 400 if (IS_ERR(skb)) 401 return PTR_ERR(skb); 402 403 bt_dev_info(hdev, "BCM: chip id %u", skb->data[1]); 404 kfree_skb(skb); 405 406 return 0; 407 } 408 409 static int btbcm_print_controller_features(struct hci_dev *hdev) 410 { 411 struct sk_buff *skb; 412 413 /* Read Controller Features */ 414 skb = btbcm_read_controller_features(hdev); 415 if (IS_ERR(skb)) 416 return PTR_ERR(skb); 417 418 bt_dev_info(hdev, "BCM: features 0x%2.2x", skb->data[1]); 419 kfree_skb(skb); 420 421 /* Read DMI and disable broken Read LE Min/Max Tx Power */ 422 if (dmi_first_match(disable_broken_read_transmit_power)) 423 set_bit(HCI_QUIRK_BROKEN_READ_TRANSMIT_POWER, &hdev->quirks); 424 425 return 0; 426 } 427 428 static int btbcm_print_local_name(struct hci_dev *hdev) 429 { 430 struct sk_buff *skb; 431 432 /* Read Local Name */ 433 skb = btbcm_read_local_name(hdev); 434 if (IS_ERR(skb)) 435 return PTR_ERR(skb); 436 437 bt_dev_info(hdev, "%s", (char *)(skb->data + 1)); 438 kfree_skb(skb); 439 440 return 0; 441 } 442 443 struct bcm_subver_table { 444 u16 subver; 445 const char *name; 446 }; 447 448 static const struct bcm_subver_table bcm_uart_subver_table[] = { 449 { 0x1111, "BCM4362A2" }, /* 000.017.017 */ 450 { 0x4103, "BCM4330B1" }, /* 002.001.003 */ 451 { 0x410d, "BCM4334B0" }, /* 002.001.013 */ 452 { 0x410e, "BCM43341B0" }, /* 002.001.014 */ 453 { 0x4204, "BCM2076B1" }, /* 002.002.004 */ 454 { 0x4406, "BCM4324B3" }, /* 002.004.006 */ 455 { 0x4606, "BCM4324B5" }, /* 002.006.006 */ 456 { 0x6109, "BCM4335C0" }, /* 003.001.009 */ 457 { 0x610c, "BCM4354" }, /* 003.001.012 */ 458 { 0x2122, "BCM4343A0" }, /* 001.001.034 */ 459 { 0x2209, "BCM43430A1" }, /* 001.002.009 */ 460 { 0x6119, "BCM4345C0" }, /* 003.001.025 */ 461 { 0x6606, "BCM4345C5" }, /* 003.006.006 */ 462 { 0x230f, "BCM4356A2" }, /* 001.003.015 */ 463 { 0x220e, "BCM20702A1" }, /* 001.002.014 */ 464 { 0x4217, "BCM4329B1" }, /* 002.002.023 */ 465 { 0x6106, "BCM4359C0" }, /* 003.001.006 */ 466 { 0x4106, "BCM4335A0" }, /* 002.001.006 */ 467 { 0x410c, "BCM43430B0" }, /* 002.001.012 */ 468 { 0x2119, "BCM4373A0" }, /* 001.001.025 */ 469 { } 470 }; 471 472 static const struct bcm_subver_table bcm_usb_subver_table[] = { 473 { 0x2105, "BCM20703A1" }, /* 001.001.005 */ 474 { 0x210b, "BCM43142A0" }, /* 001.001.011 */ 475 { 0x2112, "BCM4314A0" }, /* 001.001.018 */ 476 { 0x2118, "BCM20702A0" }, /* 001.001.024 */ 477 { 0x2126, "BCM4335A0" }, /* 001.001.038 */ 478 { 0x220e, "BCM20702A1" }, /* 001.002.014 */ 479 { 0x230f, "BCM4356A2" }, /* 001.003.015 */ 480 { 0x4106, "BCM4335B0" }, /* 002.001.006 */ 481 { 0x410e, "BCM20702B0" }, /* 002.001.014 */ 482 { 0x6109, "BCM4335C0" }, /* 003.001.009 */ 483 { 0x610c, "BCM4354" }, /* 003.001.012 */ 484 { 0x6607, "BCM4350C5" }, /* 003.006.007 */ 485 { } 486 }; 487 488 /* 489 * This currently only looks up the device tree board appendix, 490 * but can be expanded to other mechanisms. 491 */ 492 static const char *btbcm_get_board_name(struct device *dev) 493 { 494 #ifdef CONFIG_OF 495 struct device_node *root; 496 char *board_type; 497 const char *tmp; 498 int len; 499 int i; 500 501 root = of_find_node_by_path("/"); 502 if (!root) 503 return NULL; 504 505 if (of_property_read_string_index(root, "compatible", 0, &tmp)) 506 return NULL; 507 508 /* get rid of any '/' in the compatible string */ 509 len = strlen(tmp) + 1; 510 board_type = devm_kzalloc(dev, len, GFP_KERNEL); 511 strscpy(board_type, tmp, len); 512 for (i = 0; i < board_type[i]; i++) { 513 if (board_type[i] == '/') 514 board_type[i] = '-'; 515 } 516 of_node_put(root); 517 518 return board_type; 519 #else 520 return NULL; 521 #endif 522 } 523 524 int btbcm_initialize(struct hci_dev *hdev, bool *fw_load_done, bool use_autobaud_mode) 525 { 526 u16 subver, rev, pid, vid; 527 struct sk_buff *skb; 528 struct hci_rp_read_local_version *ver; 529 const struct bcm_subver_table *bcm_subver_table; 530 const char *hw_name = NULL; 531 const char *board_name; 532 char postfix[16] = ""; 533 int fw_name_count = 0; 534 bcm_fw_name *fw_name; 535 const struct firmware *fw; 536 int i, err; 537 538 board_name = btbcm_get_board_name(&hdev->dev); 539 540 /* Reset */ 541 err = btbcm_reset(hdev); 542 if (err) 543 return err; 544 545 /* Read Local Version Info */ 546 skb = btbcm_read_local_version(hdev); 547 if (IS_ERR(skb)) 548 return PTR_ERR(skb); 549 550 ver = (struct hci_rp_read_local_version *)skb->data; 551 rev = le16_to_cpu(ver->hci_rev); 552 subver = le16_to_cpu(ver->lmp_subver); 553 kfree_skb(skb); 554 555 /* Read controller information */ 556 if (!(*fw_load_done)) { 557 err = btbcm_read_info(hdev); 558 if (err) 559 return err; 560 } 561 562 if (!use_autobaud_mode) { 563 err = btbcm_print_controller_features(hdev); 564 if (err) 565 return err; 566 567 err = btbcm_print_local_name(hdev); 568 if (err) 569 return err; 570 } 571 572 bcm_subver_table = (hdev->bus == HCI_USB) ? bcm_usb_subver_table : 573 bcm_uart_subver_table; 574 575 for (i = 0; bcm_subver_table[i].name; i++) { 576 if (subver == bcm_subver_table[i].subver) { 577 hw_name = bcm_subver_table[i].name; 578 break; 579 } 580 } 581 582 bt_dev_info(hdev, "%s (%3.3u.%3.3u.%3.3u) build %4.4u", 583 hw_name ? hw_name : "BCM", (subver & 0xe000) >> 13, 584 (subver & 0x1f00) >> 8, (subver & 0x00ff), rev & 0x0fff); 585 586 if (*fw_load_done) 587 return 0; 588 589 if (hdev->bus == HCI_USB) { 590 /* Read USB Product Info */ 591 skb = btbcm_read_usb_product(hdev); 592 if (IS_ERR(skb)) 593 return PTR_ERR(skb); 594 595 vid = get_unaligned_le16(skb->data + 1); 596 pid = get_unaligned_le16(skb->data + 3); 597 kfree_skb(skb); 598 599 snprintf(postfix, sizeof(postfix), "-%4.4x-%4.4x", vid, pid); 600 } 601 602 fw_name = kmalloc(BCM_FW_NAME_COUNT_MAX * BCM_FW_NAME_LEN, GFP_KERNEL); 603 if (!fw_name) 604 return -ENOMEM; 605 606 if (hw_name) { 607 if (board_name) { 608 snprintf(fw_name[fw_name_count], BCM_FW_NAME_LEN, 609 "brcm/%s%s.%s.hcd", hw_name, postfix, board_name); 610 fw_name_count++; 611 } 612 snprintf(fw_name[fw_name_count], BCM_FW_NAME_LEN, 613 "brcm/%s%s.hcd", hw_name, postfix); 614 fw_name_count++; 615 } 616 617 if (board_name) { 618 snprintf(fw_name[fw_name_count], BCM_FW_NAME_LEN, 619 "brcm/BCM%s.%s.hcd", postfix, board_name); 620 fw_name_count++; 621 } 622 snprintf(fw_name[fw_name_count], BCM_FW_NAME_LEN, 623 "brcm/BCM%s.hcd", postfix); 624 fw_name_count++; 625 626 for (i = 0; i < fw_name_count; i++) { 627 err = firmware_request_nowarn(&fw, fw_name[i], &hdev->dev); 628 if (err == 0) { 629 bt_dev_info(hdev, "%s '%s' Patch", 630 hw_name ? hw_name : "BCM", fw_name[i]); 631 *fw_load_done = true; 632 break; 633 } 634 } 635 636 if (*fw_load_done) { 637 err = btbcm_patchram(hdev, fw); 638 if (err) 639 bt_dev_info(hdev, "BCM: Patch failed (%d)", err); 640 641 release_firmware(fw); 642 } else { 643 bt_dev_err(hdev, "BCM: firmware Patch file not found, tried:"); 644 for (i = 0; i < fw_name_count; i++) 645 bt_dev_err(hdev, "BCM: '%s'", fw_name[i]); 646 } 647 648 kfree(fw_name); 649 return 0; 650 } 651 EXPORT_SYMBOL_GPL(btbcm_initialize); 652 653 int btbcm_finalize(struct hci_dev *hdev, bool *fw_load_done, bool use_autobaud_mode) 654 { 655 int err; 656 657 /* Re-initialize if necessary */ 658 if (*fw_load_done) { 659 err = btbcm_initialize(hdev, fw_load_done, use_autobaud_mode); 660 if (err) 661 return err; 662 } 663 664 btbcm_check_bdaddr(hdev); 665 666 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks); 667 668 return 0; 669 } 670 EXPORT_SYMBOL_GPL(btbcm_finalize); 671 672 int btbcm_setup_patchram(struct hci_dev *hdev) 673 { 674 bool fw_load_done = false; 675 bool use_autobaud_mode = false; 676 int err; 677 678 /* Initialize */ 679 err = btbcm_initialize(hdev, &fw_load_done, use_autobaud_mode); 680 if (err) 681 return err; 682 683 /* Re-initialize after loading Patch */ 684 return btbcm_finalize(hdev, &fw_load_done, use_autobaud_mode); 685 } 686 EXPORT_SYMBOL_GPL(btbcm_setup_patchram); 687 688 int btbcm_setup_apple(struct hci_dev *hdev) 689 { 690 struct sk_buff *skb; 691 int err; 692 693 /* Reset */ 694 err = btbcm_reset(hdev); 695 if (err) 696 return err; 697 698 /* Read Verbose Config Version Info */ 699 skb = btbcm_read_verbose_config(hdev); 700 if (!IS_ERR(skb)) { 701 bt_dev_info(hdev, "BCM: chip id %u build %4.4u", 702 skb->data[1], get_unaligned_le16(skb->data + 5)); 703 kfree_skb(skb); 704 } 705 706 /* Read USB Product Info */ 707 skb = btbcm_read_usb_product(hdev); 708 if (!IS_ERR(skb)) { 709 bt_dev_info(hdev, "BCM: product %4.4x:%4.4x", 710 get_unaligned_le16(skb->data + 1), 711 get_unaligned_le16(skb->data + 3)); 712 kfree_skb(skb); 713 } 714 715 /* Read Controller Features */ 716 skb = btbcm_read_controller_features(hdev); 717 if (!IS_ERR(skb)) { 718 bt_dev_info(hdev, "BCM: features 0x%2.2x", skb->data[1]); 719 kfree_skb(skb); 720 } 721 722 /* Read Local Name */ 723 skb = btbcm_read_local_name(hdev); 724 if (!IS_ERR(skb)) { 725 bt_dev_info(hdev, "%s", (char *)(skb->data + 1)); 726 kfree_skb(skb); 727 } 728 729 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks); 730 731 return 0; 732 } 733 EXPORT_SYMBOL_GPL(btbcm_setup_apple); 734 735 MODULE_AUTHOR("Marcel Holtmann <[email protected]>"); 736 MODULE_DESCRIPTION("Bluetooth support for Broadcom devices ver " VERSION); 737 MODULE_VERSION(VERSION); 738 MODULE_LICENSE("GPL"); 739