781 lines · c
1// SPDX-License-Identifier: GPL-2.0-or-later2/*3 *4 * Bluetooth support for Broadcom devices5 *6 * Copyright (C) 2015 Intel Corporation7 */8 9#include <linux/efi.h>10#include <linux/module.h>11#include <linux/firmware.h>12#include <linux/dmi.h>13#include <linux/of.h>14#include <linux/string.h>15#include <linux/unaligned.h>16 17#include <net/bluetooth/bluetooth.h>18#include <net/bluetooth/hci_core.h>19 20#include "btbcm.h"21 22#define VERSION "0.1"23 24#define BDADDR_BCM20702A0 (&(bdaddr_t) {{0x00, 0xa0, 0x02, 0x70, 0x20, 0x00}})25#define BDADDR_BCM20702A1 (&(bdaddr_t) {{0x00, 0x00, 0xa0, 0x02, 0x70, 0x20}})26#define BDADDR_BCM2076B1 (&(bdaddr_t) {{0x79, 0x56, 0x00, 0xa0, 0x76, 0x20}})27#define BDADDR_BCM43430A0 (&(bdaddr_t) {{0xac, 0x1f, 0x12, 0xa0, 0x43, 0x43}})28#define BDADDR_BCM43430A1 (&(bdaddr_t) {{0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa}})29#define BDADDR_BCM4324B3 (&(bdaddr_t) {{0x00, 0x00, 0x00, 0xb3, 0x24, 0x43}})30#define BDADDR_BCM4330B1 (&(bdaddr_t) {{0x00, 0x00, 0x00, 0xb1, 0x30, 0x43}})31#define BDADDR_BCM4334B0 (&(bdaddr_t) {{0x00, 0x00, 0x00, 0xb0, 0x34, 0x43}})32#define BDADDR_BCM4345C5 (&(bdaddr_t) {{0xac, 0x1f, 0x00, 0xc5, 0x45, 0x43}})33#define BDADDR_BCM43341B (&(bdaddr_t) {{0xac, 0x1f, 0x00, 0x1b, 0x34, 0x43}})34 35#define BCM_FW_NAME_LEN 6436#define BCM_FW_NAME_COUNT_MAX 437/* For kmalloc-ing the fw-name array instead of putting it on the stack */38typedef char bcm_fw_name[BCM_FW_NAME_LEN];39 40#ifdef CONFIG_EFI41static int btbcm_set_bdaddr_from_efi(struct hci_dev *hdev)42{43 efi_guid_t guid = EFI_GUID(0x74b00bd9, 0x805a, 0x4d61, 0xb5, 0x1f,44 0x43, 0x26, 0x81, 0x23, 0xd1, 0x13);45 bdaddr_t efi_bdaddr, bdaddr;46 efi_status_t status;47 unsigned long len;48 int ret;49 50 if (!efi_rt_services_supported(EFI_RT_SUPPORTED_GET_VARIABLE))51 return -EOPNOTSUPP;52 53 len = sizeof(efi_bdaddr);54 status = efi.get_variable(L"BDADDR", &guid, NULL, &len, &efi_bdaddr);55 if (status != EFI_SUCCESS)56 return -ENXIO;57 58 if (len != sizeof(efi_bdaddr))59 return -EIO;60 61 baswap(&bdaddr, &efi_bdaddr);62 63 ret = btbcm_set_bdaddr(hdev, &bdaddr);64 if (ret)65 return ret;66 67 bt_dev_info(hdev, "BCM: Using EFI device address (%pMR)", &bdaddr);68 return 0;69}70#else71static int btbcm_set_bdaddr_from_efi(struct hci_dev *hdev)72{73 return -EOPNOTSUPP;74}75#endif76 77int btbcm_check_bdaddr(struct hci_dev *hdev)78{79 struct hci_rp_read_bd_addr *bda;80 struct sk_buff *skb;81 82 skb = __hci_cmd_sync(hdev, HCI_OP_READ_BD_ADDR, 0, NULL,83 HCI_INIT_TIMEOUT);84 if (IS_ERR(skb)) {85 int err = PTR_ERR(skb);86 87 bt_dev_err(hdev, "BCM: Reading device address failed (%d)", err);88 return err;89 }90 91 if (skb->len != sizeof(*bda)) {92 bt_dev_err(hdev, "BCM: Device address length mismatch");93 kfree_skb(skb);94 return -EIO;95 }96 97 bda = (struct hci_rp_read_bd_addr *)skb->data;98 99 /* Check if the address indicates a controller with either an100 * invalid or default address. In both cases the device needs101 * to be marked as not having a valid address.102 *103 * The address 00:20:70:02:A0:00 indicates a BCM20702A0 controller104 * with no configured address.105 *106 * The address 20:70:02:A0:00:00 indicates a BCM20702A1 controller107 * with no configured address.108 *109 * The address 20:76:A0:00:56:79 indicates a BCM2076B1 controller110 * with no configured address.111 *112 * The address 43:24:B3:00:00:00 indicates a BCM4324B3 controller113 * with waiting for configuration state.114 *115 * The address 43:30:B1:00:00:00 indicates a BCM4330B1 controller116 * with waiting for configuration state.117 *118 * The address 43:43:A0:12:1F:AC indicates a BCM43430A0 controller119 * with no configured address.120 *121 * The address AA:AA:AA:AA:AA:AA indicates a BCM43430A1 controller122 * with no configured address.123 */124 if (!bacmp(&bda->bdaddr, BDADDR_BCM20702A0) ||125 !bacmp(&bda->bdaddr, BDADDR_BCM20702A1) ||126 !bacmp(&bda->bdaddr, BDADDR_BCM2076B1) ||127 !bacmp(&bda->bdaddr, BDADDR_BCM4324B3) ||128 !bacmp(&bda->bdaddr, BDADDR_BCM4330B1) ||129 !bacmp(&bda->bdaddr, BDADDR_BCM4334B0) ||130 !bacmp(&bda->bdaddr, BDADDR_BCM4345C5) ||131 !bacmp(&bda->bdaddr, BDADDR_BCM43430A0) ||132 !bacmp(&bda->bdaddr, BDADDR_BCM43430A1) ||133 !bacmp(&bda->bdaddr, BDADDR_BCM43341B)) {134 /* Try falling back to BDADDR EFI variable */135 if (btbcm_set_bdaddr_from_efi(hdev) != 0) {136 bt_dev_info(hdev, "BCM: Using default device address (%pMR)",137 &bda->bdaddr);138 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);139 }140 }141 142 kfree_skb(skb);143 144 return 0;145}146EXPORT_SYMBOL_GPL(btbcm_check_bdaddr);147 148int btbcm_set_bdaddr(struct hci_dev *hdev, const bdaddr_t *bdaddr)149{150 struct sk_buff *skb;151 int err;152 153 skb = __hci_cmd_sync(hdev, 0xfc01, 6, bdaddr, HCI_INIT_TIMEOUT);154 if (IS_ERR(skb)) {155 err = PTR_ERR(skb);156 bt_dev_err(hdev, "BCM: Change address command failed (%d)", err);157 return err;158 }159 kfree_skb(skb);160 161 return 0;162}163EXPORT_SYMBOL_GPL(btbcm_set_bdaddr);164 165int btbcm_read_pcm_int_params(struct hci_dev *hdev,166 struct bcm_set_pcm_int_params *params)167{168 struct sk_buff *skb;169 int err = 0;170 171 skb = __hci_cmd_sync(hdev, 0xfc1d, 0, NULL, HCI_INIT_TIMEOUT);172 if (IS_ERR(skb)) {173 err = PTR_ERR(skb);174 bt_dev_err(hdev, "BCM: Read PCM int params failed (%d)", err);175 return err;176 }177 178 if (skb->len != 6 || skb->data[0]) {179 bt_dev_err(hdev, "BCM: Read PCM int params length mismatch");180 kfree_skb(skb);181 return -EIO;182 }183 184 if (params)185 memcpy(params, skb->data + 1, 5);186 187 kfree_skb(skb);188 189 return 0;190}191EXPORT_SYMBOL_GPL(btbcm_read_pcm_int_params);192 193int btbcm_write_pcm_int_params(struct hci_dev *hdev,194 const struct bcm_set_pcm_int_params *params)195{196 struct sk_buff *skb;197 int err;198 199 skb = __hci_cmd_sync(hdev, 0xfc1c, 5, params, HCI_INIT_TIMEOUT);200 if (IS_ERR(skb)) {201 err = PTR_ERR(skb);202 bt_dev_err(hdev, "BCM: Write PCM int params failed (%d)", err);203 return err;204 }205 kfree_skb(skb);206 207 return 0;208}209EXPORT_SYMBOL_GPL(btbcm_write_pcm_int_params);210 211int btbcm_patchram(struct hci_dev *hdev, const struct firmware *fw)212{213 const struct hci_command_hdr *cmd;214 const u8 *fw_ptr;215 size_t fw_size;216 struct sk_buff *skb;217 u16 opcode;218 int err = 0;219 220 /* Start Download */221 skb = __hci_cmd_sync(hdev, 0xfc2e, 0, NULL, HCI_INIT_TIMEOUT);222 if (IS_ERR(skb)) {223 err = PTR_ERR(skb);224 bt_dev_err(hdev, "BCM: Download Minidrv command failed (%d)",225 err);226 goto done;227 }228 kfree_skb(skb);229 230 /* 50 msec delay after Download Minidrv completes */231 msleep(50);232 233 fw_ptr = fw->data;234 fw_size = fw->size;235 236 while (fw_size >= sizeof(*cmd)) {237 const u8 *cmd_param;238 239 cmd = (struct hci_command_hdr *)fw_ptr;240 fw_ptr += sizeof(*cmd);241 fw_size -= sizeof(*cmd);242 243 if (fw_size < cmd->plen) {244 bt_dev_err(hdev, "BCM: Patch is corrupted");245 err = -EINVAL;246 goto done;247 }248 249 cmd_param = fw_ptr;250 fw_ptr += cmd->plen;251 fw_size -= cmd->plen;252 253 opcode = le16_to_cpu(cmd->opcode);254 255 skb = __hci_cmd_sync(hdev, opcode, cmd->plen, cmd_param,256 HCI_INIT_TIMEOUT);257 if (IS_ERR(skb)) {258 err = PTR_ERR(skb);259 bt_dev_err(hdev, "BCM: Patch command %04x failed (%d)",260 opcode, err);261 goto done;262 }263 kfree_skb(skb);264 }265 266 /* 250 msec delay after Launch Ram completes */267 msleep(250);268 269done:270 return err;271}272EXPORT_SYMBOL(btbcm_patchram);273 274static int btbcm_reset(struct hci_dev *hdev)275{276 struct sk_buff *skb;277 278 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);279 if (IS_ERR(skb)) {280 int err = PTR_ERR(skb);281 282 bt_dev_err(hdev, "BCM: Reset failed (%d)", err);283 return err;284 }285 kfree_skb(skb);286 287 /* 100 msec delay for module to complete reset process */288 msleep(100);289 290 return 0;291}292 293static struct sk_buff *btbcm_read_local_name(struct hci_dev *hdev)294{295 struct sk_buff *skb;296 297 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_NAME, 0, NULL,298 HCI_INIT_TIMEOUT);299 if (IS_ERR(skb)) {300 bt_dev_err(hdev, "BCM: Reading local name failed (%ld)",301 PTR_ERR(skb));302 return skb;303 }304 305 if (skb->len != sizeof(struct hci_rp_read_local_name)) {306 bt_dev_err(hdev, "BCM: Local name length mismatch");307 kfree_skb(skb);308 return ERR_PTR(-EIO);309 }310 311 return skb;312}313 314static struct sk_buff *btbcm_read_local_version(struct hci_dev *hdev)315{316 struct sk_buff *skb;317 318 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,319 HCI_INIT_TIMEOUT);320 if (IS_ERR(skb)) {321 bt_dev_err(hdev, "BCM: Reading local version info failed (%ld)",322 PTR_ERR(skb));323 return skb;324 }325 326 if (skb->len != sizeof(struct hci_rp_read_local_version)) {327 bt_dev_err(hdev, "BCM: Local version length mismatch");328 kfree_skb(skb);329 return ERR_PTR(-EIO);330 }331 332 return skb;333}334 335static struct sk_buff *btbcm_read_verbose_config(struct hci_dev *hdev)336{337 struct sk_buff *skb;338 339 skb = __hci_cmd_sync(hdev, 0xfc79, 0, NULL, HCI_INIT_TIMEOUT);340 if (IS_ERR(skb)) {341 bt_dev_err(hdev, "BCM: Read verbose config info failed (%ld)",342 PTR_ERR(skb));343 return skb;344 }345 346 if (skb->len != 7) {347 bt_dev_err(hdev, "BCM: Verbose config length mismatch");348 kfree_skb(skb);349 return ERR_PTR(-EIO);350 }351 352 return skb;353}354 355static struct sk_buff *btbcm_read_controller_features(struct hci_dev *hdev)356{357 struct sk_buff *skb;358 359 skb = __hci_cmd_sync(hdev, 0xfc6e, 0, NULL, HCI_INIT_TIMEOUT);360 if (IS_ERR(skb)) {361 bt_dev_err(hdev, "BCM: Read controller features failed (%ld)",362 PTR_ERR(skb));363 return skb;364 }365 366 if (skb->len != 9) {367 bt_dev_err(hdev, "BCM: Controller features length mismatch");368 kfree_skb(skb);369 return ERR_PTR(-EIO);370 }371 372 return skb;373}374 375static struct sk_buff *btbcm_read_usb_product(struct hci_dev *hdev)376{377 struct sk_buff *skb;378 379 skb = __hci_cmd_sync(hdev, 0xfc5a, 0, NULL, HCI_INIT_TIMEOUT);380 if (IS_ERR(skb)) {381 bt_dev_err(hdev, "BCM: Read USB product info failed (%ld)",382 PTR_ERR(skb));383 return skb;384 }385 386 if (skb->len != 5) {387 bt_dev_err(hdev, "BCM: USB product length mismatch");388 kfree_skb(skb);389 return ERR_PTR(-EIO);390 }391 392 return skb;393}394 395static const struct dmi_system_id disable_broken_read_transmit_power[] = {396 {397 .matches = {398 DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."),399 DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro16,1"),400 },401 },402 {403 .matches = {404 DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."),405 DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro16,2"),406 },407 },408 {409 .matches = {410 DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."),411 DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro16,4"),412 },413 },414 {415 .matches = {416 DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."),417 DMI_MATCH(DMI_PRODUCT_NAME, "MacBookAir8,1"),418 },419 },420 {421 .matches = {422 DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."),423 DMI_MATCH(DMI_PRODUCT_NAME, "MacBookAir8,2"),424 },425 },426 {427 .matches = {428 DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."),429 DMI_MATCH(DMI_PRODUCT_NAME, "iMac20,1"),430 },431 },432 {433 .matches = {434 DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."),435 DMI_MATCH(DMI_PRODUCT_NAME, "iMac20,2"),436 },437 },438 { }439};440 441static int btbcm_read_info(struct hci_dev *hdev)442{443 struct sk_buff *skb;444 445 /* Read Verbose Config Version Info */446 skb = btbcm_read_verbose_config(hdev);447 if (IS_ERR(skb))448 return PTR_ERR(skb);449 450 bt_dev_info(hdev, "BCM: chip id %u", skb->data[1]);451 kfree_skb(skb);452 453 return 0;454}455 456static int btbcm_print_controller_features(struct hci_dev *hdev)457{458 struct sk_buff *skb;459 460 /* Read Controller Features */461 skb = btbcm_read_controller_features(hdev);462 if (IS_ERR(skb))463 return PTR_ERR(skb);464 465 bt_dev_info(hdev, "BCM: features 0x%2.2x", skb->data[1]);466 kfree_skb(skb);467 468 /* Read DMI and disable broken Read LE Min/Max Tx Power */469 if (dmi_first_match(disable_broken_read_transmit_power))470 set_bit(HCI_QUIRK_BROKEN_READ_TRANSMIT_POWER, &hdev->quirks);471 472 return 0;473}474 475static int btbcm_print_local_name(struct hci_dev *hdev)476{477 struct sk_buff *skb;478 479 /* Read Local Name */480 skb = btbcm_read_local_name(hdev);481 if (IS_ERR(skb))482 return PTR_ERR(skb);483 484 bt_dev_info(hdev, "%s", (char *)(skb->data + 1));485 kfree_skb(skb);486 487 return 0;488}489 490struct bcm_subver_table {491 u16 subver;492 const char *name;493};494 495static const struct bcm_subver_table bcm_uart_subver_table[] = {496 { 0x1111, "BCM4362A2" }, /* 000.017.017 */497 { 0x4103, "BCM4330B1" }, /* 002.001.003 */498 { 0x410d, "BCM4334B0" }, /* 002.001.013 */499 { 0x410e, "BCM43341B0" }, /* 002.001.014 */500 { 0x4204, "BCM2076B1" }, /* 002.002.004 */501 { 0x4406, "BCM4324B3" }, /* 002.004.006 */502 { 0x4606, "BCM4324B5" }, /* 002.006.006 */503 { 0x6109, "BCM4335C0" }, /* 003.001.009 */504 { 0x610c, "BCM4354" }, /* 003.001.012 */505 { 0x2122, "BCM4343A0" }, /* 001.001.034 */506 { 0x2209, "BCM43430A1" }, /* 001.002.009 */507 { 0x6119, "BCM4345C0" }, /* 003.001.025 */508 { 0x6606, "BCM4345C5" }, /* 003.006.006 */509 { 0x230f, "BCM4356A2" }, /* 001.003.015 */510 { 0x220e, "BCM20702A1" }, /* 001.002.014 */511 { 0x420d, "BCM4349B1" }, /* 002.002.013 */512 { 0x420e, "BCM4349B1" }, /* 002.002.014 */513 { 0x4217, "BCM4329B1" }, /* 002.002.023 */514 { 0x6106, "BCM4359C0" }, /* 003.001.006 */515 { 0x4106, "BCM4335A0" }, /* 002.001.006 */516 { 0x410c, "BCM43430B0" }, /* 002.001.012 */517 { 0x2119, "BCM4373A0" }, /* 001.001.025 */518 { }519};520 521static const struct bcm_subver_table bcm_usb_subver_table[] = {522 { 0x2105, "BCM20703A1" }, /* 001.001.005 */523 { 0x210b, "BCM43142A0" }, /* 001.001.011 */524 { 0x2112, "BCM4314A0" }, /* 001.001.018 */525 { 0x2118, "BCM20702A0" }, /* 001.001.024 */526 { 0x2126, "BCM4335A0" }, /* 001.001.038 */527 { 0x220e, "BCM20702A1" }, /* 001.002.014 */528 { 0x230f, "BCM4356A2" }, /* 001.003.015 */529 { 0x4106, "BCM4335B0" }, /* 002.001.006 */530 { 0x410e, "BCM20702B0" }, /* 002.001.014 */531 { 0x6109, "BCM4335C0" }, /* 003.001.009 */532 { 0x610c, "BCM4354" }, /* 003.001.012 */533 { 0x6607, "BCM4350C5" }, /* 003.006.007 */534 { }535};536 537/*538 * This currently only looks up the device tree board appendix,539 * but can be expanded to other mechanisms.540 */541static const char *btbcm_get_board_name(struct device *dev)542{543#ifdef CONFIG_OF544 struct device_node *root;545 char *board_type;546 const char *tmp;547 548 root = of_find_node_by_path("/");549 if (!root)550 return NULL;551 552 if (of_property_read_string_index(root, "compatible", 0, &tmp))553 return NULL;554 555 /* get rid of any '/' in the compatible string */556 board_type = devm_kstrdup(dev, tmp, GFP_KERNEL);557 strreplace(board_type, '/', '-');558 of_node_put(root);559 560 return board_type;561#else562 return NULL;563#endif564}565 566int btbcm_initialize(struct hci_dev *hdev, bool *fw_load_done, bool use_autobaud_mode)567{568 u16 subver, rev, pid, vid;569 struct sk_buff *skb;570 struct hci_rp_read_local_version *ver;571 const struct bcm_subver_table *bcm_subver_table;572 const char *hw_name = NULL;573 const char *board_name;574 char postfix[16] = "";575 int fw_name_count = 0;576 bcm_fw_name *fw_name;577 const struct firmware *fw;578 int i, err;579 580 board_name = btbcm_get_board_name(&hdev->dev);581 582 /* Reset */583 err = btbcm_reset(hdev);584 if (err)585 return err;586 587 /* Read Local Version Info */588 skb = btbcm_read_local_version(hdev);589 if (IS_ERR(skb))590 return PTR_ERR(skb);591 592 ver = (struct hci_rp_read_local_version *)skb->data;593 rev = le16_to_cpu(ver->hci_rev);594 subver = le16_to_cpu(ver->lmp_subver);595 kfree_skb(skb);596 597 /* Read controller information */598 if (!(*fw_load_done)) {599 err = btbcm_read_info(hdev);600 if (err)601 return err;602 }603 604 if (!use_autobaud_mode) {605 err = btbcm_print_controller_features(hdev);606 if (err)607 return err;608 609 err = btbcm_print_local_name(hdev);610 if (err)611 return err;612 }613 614 bcm_subver_table = (hdev->bus == HCI_USB) ? bcm_usb_subver_table :615 bcm_uart_subver_table;616 617 for (i = 0; bcm_subver_table[i].name; i++) {618 if (subver == bcm_subver_table[i].subver) {619 hw_name = bcm_subver_table[i].name;620 break;621 }622 }623 624 bt_dev_info(hdev, "%s (%3.3u.%3.3u.%3.3u) build %4.4u",625 hw_name ? hw_name : "BCM", (subver & 0xe000) >> 13,626 (subver & 0x1f00) >> 8, (subver & 0x00ff), rev & 0x0fff);627 628 if (*fw_load_done)629 return 0;630 631 if (hdev->bus == HCI_USB) {632 /* Read USB Product Info */633 skb = btbcm_read_usb_product(hdev);634 if (IS_ERR(skb))635 return PTR_ERR(skb);636 637 vid = get_unaligned_le16(skb->data + 1);638 pid = get_unaligned_le16(skb->data + 3);639 kfree_skb(skb);640 641 snprintf(postfix, sizeof(postfix), "-%4.4x-%4.4x", vid, pid);642 }643 644 fw_name = kmalloc(BCM_FW_NAME_COUNT_MAX * BCM_FW_NAME_LEN, GFP_KERNEL);645 if (!fw_name)646 return -ENOMEM;647 648 if (hw_name) {649 if (board_name) {650 snprintf(fw_name[fw_name_count], BCM_FW_NAME_LEN,651 "brcm/%s%s.%s.hcd", hw_name, postfix, board_name);652 fw_name_count++;653 }654 snprintf(fw_name[fw_name_count], BCM_FW_NAME_LEN,655 "brcm/%s%s.hcd", hw_name, postfix);656 fw_name_count++;657 }658 659 if (board_name) {660 snprintf(fw_name[fw_name_count], BCM_FW_NAME_LEN,661 "brcm/BCM%s.%s.hcd", postfix, board_name);662 fw_name_count++;663 }664 snprintf(fw_name[fw_name_count], BCM_FW_NAME_LEN,665 "brcm/BCM%s.hcd", postfix);666 fw_name_count++;667 668 for (i = 0; i < fw_name_count; i++) {669 err = firmware_request_nowarn(&fw, fw_name[i], &hdev->dev);670 if (err == 0) {671 bt_dev_info(hdev, "%s '%s' Patch",672 hw_name ? hw_name : "BCM", fw_name[i]);673 *fw_load_done = true;674 break;675 }676 }677 678 if (*fw_load_done) {679 err = btbcm_patchram(hdev, fw);680 if (err)681 bt_dev_info(hdev, "BCM: Patch failed (%d)", err);682 683 release_firmware(fw);684 } else {685 bt_dev_err(hdev, "BCM: firmware Patch file not found, tried:");686 for (i = 0; i < fw_name_count; i++)687 bt_dev_err(hdev, "BCM: '%s'", fw_name[i]);688 }689 690 kfree(fw_name);691 return 0;692}693EXPORT_SYMBOL_GPL(btbcm_initialize);694 695int btbcm_finalize(struct hci_dev *hdev, bool *fw_load_done, bool use_autobaud_mode)696{697 int err;698 699 /* Re-initialize if necessary */700 if (*fw_load_done) {701 err = btbcm_initialize(hdev, fw_load_done, use_autobaud_mode);702 if (err)703 return err;704 }705 706 btbcm_check_bdaddr(hdev);707 708 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);709 710 return 0;711}712EXPORT_SYMBOL_GPL(btbcm_finalize);713 714int btbcm_setup_patchram(struct hci_dev *hdev)715{716 bool fw_load_done = false;717 bool use_autobaud_mode = false;718 int err;719 720 /* Initialize */721 err = btbcm_initialize(hdev, &fw_load_done, use_autobaud_mode);722 if (err)723 return err;724 725 /* Re-initialize after loading Patch */726 return btbcm_finalize(hdev, &fw_load_done, use_autobaud_mode);727}728EXPORT_SYMBOL_GPL(btbcm_setup_patchram);729 730int btbcm_setup_apple(struct hci_dev *hdev)731{732 struct sk_buff *skb;733 int err;734 735 /* Reset */736 err = btbcm_reset(hdev);737 if (err)738 return err;739 740 /* Read Verbose Config Version Info */741 skb = btbcm_read_verbose_config(hdev);742 if (!IS_ERR(skb)) {743 bt_dev_info(hdev, "BCM: chip id %u build %4.4u",744 skb->data[1], get_unaligned_le16(skb->data + 5));745 kfree_skb(skb);746 }747 748 /* Read USB Product Info */749 skb = btbcm_read_usb_product(hdev);750 if (!IS_ERR(skb)) {751 bt_dev_info(hdev, "BCM: product %4.4x:%4.4x",752 get_unaligned_le16(skb->data + 1),753 get_unaligned_le16(skb->data + 3));754 kfree_skb(skb);755 }756 757 /* Read Controller Features */758 skb = btbcm_read_controller_features(hdev);759 if (!IS_ERR(skb)) {760 bt_dev_info(hdev, "BCM: features 0x%2.2x", skb->data[1]);761 kfree_skb(skb);762 }763 764 /* Read Local Name */765 skb = btbcm_read_local_name(hdev);766 if (!IS_ERR(skb)) {767 bt_dev_info(hdev, "%s", (char *)(skb->data + 1));768 kfree_skb(skb);769 }770 771 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);772 773 return 0;774}775EXPORT_SYMBOL_GPL(btbcm_setup_apple);776 777MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");778MODULE_DESCRIPTION("Bluetooth support for Broadcom devices ver " VERSION);779MODULE_VERSION(VERSION);780MODULE_LICENSE("GPL");781