1 // SPDX-License-Identifier: GPL-2.0-or-later
4 * Bluetooth support for Broadcom devices
6 * Copyright (C) 2015 Intel Corporation
9 #include <linux/module.h>
10 #include <linux/firmware.h>
11 #include <asm/unaligned.h>
13 #include <net/bluetooth/bluetooth.h>
14 #include <net/bluetooth/hci_core.h>
20 #define BDADDR_BCM20702A0 (&(bdaddr_t) {{0x00, 0xa0, 0x02, 0x70, 0x20, 0x00}})
21 #define BDADDR_BCM20702A1 (&(bdaddr_t) {{0x00, 0x00, 0xa0, 0x02, 0x70, 0x20}})
22 #define BDADDR_BCM2076B1 (&(bdaddr_t) {{0x79, 0x56, 0x00, 0xa0, 0x76, 0x20}})
23 #define BDADDR_BCM43430A0 (&(bdaddr_t) {{0xac, 0x1f, 0x12, 0xa0, 0x43, 0x43}})
24 #define BDADDR_BCM4324B3 (&(bdaddr_t) {{0x00, 0x00, 0x00, 0xb3, 0x24, 0x43}})
25 #define BDADDR_BCM4330B1 (&(bdaddr_t) {{0x00, 0x00, 0x00, 0xb1, 0x30, 0x43}})
26 #define BDADDR_BCM4334B0 (&(bdaddr_t) {{0x00, 0x00, 0x00, 0xb0, 0x34, 0x43}})
27 #define BDADDR_BCM4345C5 (&(bdaddr_t) {{0xac, 0x1f, 0x00, 0xc5, 0x45, 0x43}})
28 #define BDADDR_BCM43341B (&(bdaddr_t) {{0xac, 0x1f, 0x00, 0x1b, 0x34, 0x43}})
30 #define BCM_FW_NAME_LEN 64
31 #define BCM_FW_NAME_COUNT_MAX 2
32 /* For kmalloc-ing the fw-name array instead of putting it on the stack */
33 typedef char bcm_fw_name[BCM_FW_NAME_LEN];
35 int btbcm_check_bdaddr(struct hci_dev *hdev)
37 struct hci_rp_read_bd_addr *bda;
40 skb = __hci_cmd_sync(hdev, HCI_OP_READ_BD_ADDR, 0, NULL,
43 int err = PTR_ERR(skb);
45 bt_dev_err(hdev, "BCM: Reading device address failed (%d)", err);
49 if (skb->len != sizeof(*bda)) {
50 bt_dev_err(hdev, "BCM: Device address length mismatch");
55 bda = (struct hci_rp_read_bd_addr *)skb->data;
57 /* Check if the address indicates a controller with either an
58 * invalid or default address. In both cases the device needs
59 * to be marked as not having a valid address.
61 * The address 00:20:70:02:A0:00 indicates a BCM20702A0 controller
62 * with no configured address.
64 * The address 20:70:02:A0:00:00 indicates a BCM20702A1 controller
65 * with no configured address.
67 * The address 20:76:A0:00:56:79 indicates a BCM2076B1 controller
68 * with no configured address.
70 * The address 43:24:B3:00:00:00 indicates a BCM4324B3 controller
71 * with waiting for configuration state.
73 * The address 43:30:B1:00:00:00 indicates a BCM4330B1 controller
74 * with waiting for configuration state.
76 * The address 43:43:A0:12:1F:AC indicates a BCM43430A0 controller
77 * with no configured address.
79 if (!bacmp(&bda->bdaddr, BDADDR_BCM20702A0) ||
80 !bacmp(&bda->bdaddr, BDADDR_BCM20702A1) ||
81 !bacmp(&bda->bdaddr, BDADDR_BCM2076B1) ||
82 !bacmp(&bda->bdaddr, BDADDR_BCM4324B3) ||
83 !bacmp(&bda->bdaddr, BDADDR_BCM4330B1) ||
84 !bacmp(&bda->bdaddr, BDADDR_BCM4334B0) ||
85 !bacmp(&bda->bdaddr, BDADDR_BCM4345C5) ||
86 !bacmp(&bda->bdaddr, BDADDR_BCM43430A0) ||
87 !bacmp(&bda->bdaddr, BDADDR_BCM43341B)) {
88 bt_dev_info(hdev, "BCM: Using default device address (%pMR)",
90 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
97 EXPORT_SYMBOL_GPL(btbcm_check_bdaddr);
99 int btbcm_set_bdaddr(struct hci_dev *hdev, const bdaddr_t *bdaddr)
104 skb = __hci_cmd_sync(hdev, 0xfc01, 6, bdaddr, HCI_INIT_TIMEOUT);
107 bt_dev_err(hdev, "BCM: Change address command failed (%d)", err);
114 EXPORT_SYMBOL_GPL(btbcm_set_bdaddr);
116 int btbcm_read_pcm_int_params(struct hci_dev *hdev,
117 struct bcm_set_pcm_int_params *params)
122 skb = __hci_cmd_sync(hdev, 0xfc1d, 0, NULL, HCI_INIT_TIMEOUT);
125 bt_dev_err(hdev, "BCM: Read PCM int params failed (%d)", err);
129 if (skb->len != 6 || skb->data[0]) {
130 bt_dev_err(hdev, "BCM: Read PCM int params length mismatch");
136 memcpy(params, skb->data + 1, 5);
142 EXPORT_SYMBOL_GPL(btbcm_read_pcm_int_params);
144 int btbcm_write_pcm_int_params(struct hci_dev *hdev,
145 const struct bcm_set_pcm_int_params *params)
150 skb = __hci_cmd_sync(hdev, 0xfc1c, 5, params, HCI_INIT_TIMEOUT);
153 bt_dev_err(hdev, "BCM: Write PCM int params failed (%d)", err);
160 EXPORT_SYMBOL_GPL(btbcm_write_pcm_int_params);
162 int btbcm_patchram(struct hci_dev *hdev, const struct firmware *fw)
164 const struct hci_command_hdr *cmd;
172 skb = __hci_cmd_sync(hdev, 0xfc2e, 0, NULL, HCI_INIT_TIMEOUT);
175 bt_dev_err(hdev, "BCM: Download Minidrv command failed (%d)",
181 /* 50 msec delay after Download Minidrv completes */
187 while (fw_size >= sizeof(*cmd)) {
190 cmd = (struct hci_command_hdr *)fw_ptr;
191 fw_ptr += sizeof(*cmd);
192 fw_size -= sizeof(*cmd);
194 if (fw_size < cmd->plen) {
195 bt_dev_err(hdev, "BCM: Patch is corrupted");
202 fw_size -= cmd->plen;
204 opcode = le16_to_cpu(cmd->opcode);
206 skb = __hci_cmd_sync(hdev, opcode, cmd->plen, cmd_param,
210 bt_dev_err(hdev, "BCM: Patch command %04x failed (%d)",
217 /* 250 msec delay after Launch Ram completes */
223 EXPORT_SYMBOL(btbcm_patchram);
225 static int btbcm_reset(struct hci_dev *hdev)
229 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
231 int err = PTR_ERR(skb);
233 bt_dev_err(hdev, "BCM: Reset failed (%d)", err);
238 /* 100 msec delay for module to complete reset process */
244 static struct sk_buff *btbcm_read_local_name(struct hci_dev *hdev)
248 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_NAME, 0, NULL,
251 bt_dev_err(hdev, "BCM: Reading local name failed (%ld)",
256 if (skb->len != sizeof(struct hci_rp_read_local_name)) {
257 bt_dev_err(hdev, "BCM: Local name length mismatch");
259 return ERR_PTR(-EIO);
265 static struct sk_buff *btbcm_read_local_version(struct hci_dev *hdev)
269 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
272 bt_dev_err(hdev, "BCM: Reading local version info failed (%ld)",
277 if (skb->len != sizeof(struct hci_rp_read_local_version)) {
278 bt_dev_err(hdev, "BCM: Local version length mismatch");
280 return ERR_PTR(-EIO);
286 static struct sk_buff *btbcm_read_verbose_config(struct hci_dev *hdev)
290 skb = __hci_cmd_sync(hdev, 0xfc79, 0, NULL, HCI_INIT_TIMEOUT);
292 bt_dev_err(hdev, "BCM: Read verbose config info failed (%ld)",
298 bt_dev_err(hdev, "BCM: Verbose config length mismatch");
300 return ERR_PTR(-EIO);
306 static struct sk_buff *btbcm_read_controller_features(struct hci_dev *hdev)
310 skb = __hci_cmd_sync(hdev, 0xfc6e, 0, NULL, HCI_INIT_TIMEOUT);
312 bt_dev_err(hdev, "BCM: Read controller features failed (%ld)",
318 bt_dev_err(hdev, "BCM: Controller features length mismatch");
320 return ERR_PTR(-EIO);
326 static struct sk_buff *btbcm_read_usb_product(struct hci_dev *hdev)
330 skb = __hci_cmd_sync(hdev, 0xfc5a, 0, NULL, HCI_INIT_TIMEOUT);
332 bt_dev_err(hdev, "BCM: Read USB product info failed (%ld)",
338 bt_dev_err(hdev, "BCM: USB product length mismatch");
340 return ERR_PTR(-EIO);
346 static int btbcm_read_info(struct hci_dev *hdev)
350 /* Read Verbose Config Version Info */
351 skb = btbcm_read_verbose_config(hdev);
355 bt_dev_info(hdev, "BCM: chip id %u", skb->data[1]);
358 /* Read Controller Features */
359 skb = btbcm_read_controller_features(hdev);
363 bt_dev_info(hdev, "BCM: features 0x%2.2x", skb->data[1]);
369 static int btbcm_print_local_name(struct hci_dev *hdev)
373 /* Read Local Name */
374 skb = btbcm_read_local_name(hdev);
378 bt_dev_info(hdev, "%s", (char *)(skb->data + 1));
384 struct bcm_subver_table {
389 static const struct bcm_subver_table bcm_uart_subver_table[] = {
390 { 0x1111, "BCM4362A2" }, /* 000.017.017 */
391 { 0x4103, "BCM4330B1" }, /* 002.001.003 */
392 { 0x410d, "BCM4334B0" }, /* 002.001.013 */
393 { 0x410e, "BCM43341B0" }, /* 002.001.014 */
394 { 0x4204, "BCM2076B1" }, /* 002.002.004 */
395 { 0x4406, "BCM4324B3" }, /* 002.004.006 */
396 { 0x4606, "BCM4324B5" }, /* 002.006.006 */
397 { 0x6109, "BCM4335C0" }, /* 003.001.009 */
398 { 0x610c, "BCM4354" }, /* 003.001.012 */
399 { 0x2122, "BCM4343A0" }, /* 001.001.034 */
400 { 0x2209, "BCM43430A1" }, /* 001.002.009 */
401 { 0x6119, "BCM4345C0" }, /* 003.001.025 */
402 { 0x6606, "BCM4345C5" }, /* 003.006.006 */
403 { 0x230f, "BCM4356A2" }, /* 001.003.015 */
404 { 0x220e, "BCM20702A1" }, /* 001.002.014 */
405 { 0x4217, "BCM4329B1" }, /* 002.002.023 */
406 { 0x6106, "BCM4359C0" }, /* 003.001.006 */
407 { 0x4106, "BCM4335A0" }, /* 002.001.006 */
408 { 0x410c, "BCM43430B0" }, /* 002.001.012 */
412 static const struct bcm_subver_table bcm_usb_subver_table[] = {
413 { 0x2105, "BCM20703A1" }, /* 001.001.005 */
414 { 0x210b, "BCM43142A0" }, /* 001.001.011 */
415 { 0x2112, "BCM4314A0" }, /* 001.001.018 */
416 { 0x2118, "BCM20702A0" }, /* 001.001.024 */
417 { 0x2126, "BCM4335A0" }, /* 001.001.038 */
418 { 0x220e, "BCM20702A1" }, /* 001.002.014 */
419 { 0x230f, "BCM4356A2" }, /* 001.003.015 */
420 { 0x4106, "BCM4335B0" }, /* 002.001.006 */
421 { 0x410e, "BCM20702B0" }, /* 002.001.014 */
422 { 0x6109, "BCM4335C0" }, /* 003.001.009 */
423 { 0x610c, "BCM4354" }, /* 003.001.012 */
424 { 0x6607, "BCM4350C5" }, /* 003.006.007 */
428 int btbcm_initialize(struct hci_dev *hdev, bool *fw_load_done)
430 u16 subver, rev, pid, vid;
432 struct hci_rp_read_local_version *ver;
433 const struct bcm_subver_table *bcm_subver_table;
434 const char *hw_name = NULL;
435 char postfix[16] = "";
436 int fw_name_count = 0;
437 bcm_fw_name *fw_name;
438 const struct firmware *fw;
442 err = btbcm_reset(hdev);
446 /* Read Local Version Info */
447 skb = btbcm_read_local_version(hdev);
451 ver = (struct hci_rp_read_local_version *)skb->data;
452 rev = le16_to_cpu(ver->hci_rev);
453 subver = le16_to_cpu(ver->lmp_subver);
456 /* Read controller information */
457 if (!(*fw_load_done)) {
458 err = btbcm_read_info(hdev);
462 err = btbcm_print_local_name(hdev);
466 bcm_subver_table = (hdev->bus == HCI_USB) ? bcm_usb_subver_table :
467 bcm_uart_subver_table;
469 for (i = 0; bcm_subver_table[i].name; i++) {
470 if (subver == bcm_subver_table[i].subver) {
471 hw_name = bcm_subver_table[i].name;
476 bt_dev_info(hdev, "%s (%3.3u.%3.3u.%3.3u) build %4.4u",
477 hw_name ? hw_name : "BCM", (subver & 0xe000) >> 13,
478 (subver & 0x1f00) >> 8, (subver & 0x00ff), rev & 0x0fff);
483 if (hdev->bus == HCI_USB) {
484 /* Read USB Product Info */
485 skb = btbcm_read_usb_product(hdev);
489 vid = get_unaligned_le16(skb->data + 1);
490 pid = get_unaligned_le16(skb->data + 3);
493 snprintf(postfix, sizeof(postfix), "-%4.4x-%4.4x", vid, pid);
496 fw_name = kmalloc(BCM_FW_NAME_COUNT_MAX * BCM_FW_NAME_LEN, GFP_KERNEL);
501 snprintf(fw_name[fw_name_count], BCM_FW_NAME_LEN,
502 "brcm/%s%s.hcd", hw_name, postfix);
506 snprintf(fw_name[fw_name_count], BCM_FW_NAME_LEN,
507 "brcm/BCM%s.hcd", postfix);
510 for (i = 0; i < fw_name_count; i++) {
511 err = firmware_request_nowarn(&fw, fw_name[i], &hdev->dev);
513 bt_dev_info(hdev, "%s '%s' Patch",
514 hw_name ? hw_name : "BCM", fw_name[i]);
515 *fw_load_done = true;
521 err = btbcm_patchram(hdev, fw);
523 bt_dev_info(hdev, "BCM: Patch failed (%d)", err);
525 release_firmware(fw);
527 bt_dev_err(hdev, "BCM: firmware Patch file not found, tried:");
528 for (i = 0; i < fw_name_count; i++)
529 bt_dev_err(hdev, "BCM: '%s'", fw_name[i]);
535 EXPORT_SYMBOL_GPL(btbcm_initialize);
537 int btbcm_finalize(struct hci_dev *hdev, bool *fw_load_done)
541 /* Re-initialize if necessary */
543 err = btbcm_initialize(hdev, fw_load_done);
548 btbcm_check_bdaddr(hdev);
550 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
554 EXPORT_SYMBOL_GPL(btbcm_finalize);
556 int btbcm_setup_patchram(struct hci_dev *hdev)
558 bool fw_load_done = false;
562 err = btbcm_initialize(hdev, &fw_load_done);
566 /* Re-initialize after loading Patch */
567 return btbcm_finalize(hdev, &fw_load_done);
569 EXPORT_SYMBOL_GPL(btbcm_setup_patchram);
571 int btbcm_setup_apple(struct hci_dev *hdev)
577 err = btbcm_reset(hdev);
581 /* Read Verbose Config Version Info */
582 skb = btbcm_read_verbose_config(hdev);
584 bt_dev_info(hdev, "BCM: chip id %u build %4.4u",
585 skb->data[1], get_unaligned_le16(skb->data + 5));
589 /* Read USB Product Info */
590 skb = btbcm_read_usb_product(hdev);
592 bt_dev_info(hdev, "BCM: product %4.4x:%4.4x",
593 get_unaligned_le16(skb->data + 1),
594 get_unaligned_le16(skb->data + 3));
598 /* Read Controller Features */
599 skb = btbcm_read_controller_features(hdev);
601 bt_dev_info(hdev, "BCM: features 0x%2.2x", skb->data[1]);
605 /* Read Local Name */
606 skb = btbcm_read_local_name(hdev);
608 bt_dev_info(hdev, "%s", (char *)(skb->data + 1));
612 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
616 EXPORT_SYMBOL_GPL(btbcm_setup_apple);
618 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
619 MODULE_DESCRIPTION("Bluetooth support for Broadcom devices ver " VERSION);
620 MODULE_VERSION(VERSION);
621 MODULE_LICENSE("GPL");