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-rw-r--r--drivers/bluetooth/btbcm.c786
1 files changed, 786 insertions, 0 deletions
diff --git a/drivers/bluetooth/btbcm.c b/drivers/bluetooth/btbcm.c
new file mode 100644
index 000000000..0a5445ac5
--- /dev/null
+++ b/drivers/bluetooth/btbcm.c
@@ -0,0 +1,786 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ *
+ * Bluetooth support for Broadcom devices
+ *
+ * Copyright (C) 2015 Intel Corporation
+ */
+
+#include <linux/efi.h>
+#include <linux/module.h>
+#include <linux/firmware.h>
+#include <linux/dmi.h>
+#include <linux/of.h>
+#include <asm/unaligned.h>
+
+#include <net/bluetooth/bluetooth.h>
+#include <net/bluetooth/hci_core.h>
+
+#include "btbcm.h"
+
+#define VERSION "0.1"
+
+#define BDADDR_BCM20702A0 (&(bdaddr_t) {{0x00, 0xa0, 0x02, 0x70, 0x20, 0x00}})
+#define BDADDR_BCM20702A1 (&(bdaddr_t) {{0x00, 0x00, 0xa0, 0x02, 0x70, 0x20}})
+#define BDADDR_BCM2076B1 (&(bdaddr_t) {{0x79, 0x56, 0x00, 0xa0, 0x76, 0x20}})
+#define BDADDR_BCM43430A0 (&(bdaddr_t) {{0xac, 0x1f, 0x12, 0xa0, 0x43, 0x43}})
+#define BDADDR_BCM43430A1 (&(bdaddr_t) {{0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa}})
+#define BDADDR_BCM4324B3 (&(bdaddr_t) {{0x00, 0x00, 0x00, 0xb3, 0x24, 0x43}})
+#define BDADDR_BCM4330B1 (&(bdaddr_t) {{0x00, 0x00, 0x00, 0xb1, 0x30, 0x43}})
+#define BDADDR_BCM4334B0 (&(bdaddr_t) {{0x00, 0x00, 0x00, 0xb0, 0x34, 0x43}})
+#define BDADDR_BCM4345C5 (&(bdaddr_t) {{0xac, 0x1f, 0x00, 0xc5, 0x45, 0x43}})
+#define BDADDR_BCM43341B (&(bdaddr_t) {{0xac, 0x1f, 0x00, 0x1b, 0x34, 0x43}})
+
+#define BCM_FW_NAME_LEN 64
+#define BCM_FW_NAME_COUNT_MAX 4
+/* For kmalloc-ing the fw-name array instead of putting it on the stack */
+typedef char bcm_fw_name[BCM_FW_NAME_LEN];
+
+#ifdef CONFIG_EFI
+static int btbcm_set_bdaddr_from_efi(struct hci_dev *hdev)
+{
+ efi_guid_t guid = EFI_GUID(0x74b00bd9, 0x805a, 0x4d61, 0xb5, 0x1f,
+ 0x43, 0x26, 0x81, 0x23, 0xd1, 0x13);
+ bdaddr_t efi_bdaddr, bdaddr;
+ efi_status_t status;
+ unsigned long len;
+ int ret;
+
+ if (!efi_rt_services_supported(EFI_RT_SUPPORTED_GET_VARIABLE))
+ return -EOPNOTSUPP;
+
+ len = sizeof(efi_bdaddr);
+ status = efi.get_variable(L"BDADDR", &guid, NULL, &len, &efi_bdaddr);
+ if (status != EFI_SUCCESS)
+ return -ENXIO;
+
+ if (len != sizeof(efi_bdaddr))
+ return -EIO;
+
+ baswap(&bdaddr, &efi_bdaddr);
+
+ ret = btbcm_set_bdaddr(hdev, &bdaddr);
+ if (ret)
+ return ret;
+
+ bt_dev_info(hdev, "BCM: Using EFI device address (%pMR)", &bdaddr);
+ return 0;
+}
+#else
+static int btbcm_set_bdaddr_from_efi(struct hci_dev *hdev)
+{
+ return -EOPNOTSUPP;
+}
+#endif
+
+int btbcm_check_bdaddr(struct hci_dev *hdev)
+{
+ struct hci_rp_read_bd_addr *bda;
+ struct sk_buff *skb;
+
+ skb = __hci_cmd_sync(hdev, HCI_OP_READ_BD_ADDR, 0, NULL,
+ HCI_INIT_TIMEOUT);
+ if (IS_ERR(skb)) {
+ int err = PTR_ERR(skb);
+
+ bt_dev_err(hdev, "BCM: Reading device address failed (%d)", err);
+ return err;
+ }
+
+ if (skb->len != sizeof(*bda)) {
+ bt_dev_err(hdev, "BCM: Device address length mismatch");
+ kfree_skb(skb);
+ return -EIO;
+ }
+
+ bda = (struct hci_rp_read_bd_addr *)skb->data;
+
+ /* Check if the address indicates a controller with either an
+ * invalid or default address. In both cases the device needs
+ * to be marked as not having a valid address.
+ *
+ * The address 00:20:70:02:A0:00 indicates a BCM20702A0 controller
+ * with no configured address.
+ *
+ * The address 20:70:02:A0:00:00 indicates a BCM20702A1 controller
+ * with no configured address.
+ *
+ * The address 20:76:A0:00:56:79 indicates a BCM2076B1 controller
+ * with no configured address.
+ *
+ * The address 43:24:B3:00:00:00 indicates a BCM4324B3 controller
+ * with waiting for configuration state.
+ *
+ * The address 43:30:B1:00:00:00 indicates a BCM4330B1 controller
+ * with waiting for configuration state.
+ *
+ * The address 43:43:A0:12:1F:AC indicates a BCM43430A0 controller
+ * with no configured address.
+ *
+ * The address AA:AA:AA:AA:AA:AA indicates a BCM43430A1 controller
+ * with no configured address.
+ */
+ if (!bacmp(&bda->bdaddr, BDADDR_BCM20702A0) ||
+ !bacmp(&bda->bdaddr, BDADDR_BCM20702A1) ||
+ !bacmp(&bda->bdaddr, BDADDR_BCM2076B1) ||
+ !bacmp(&bda->bdaddr, BDADDR_BCM4324B3) ||
+ !bacmp(&bda->bdaddr, BDADDR_BCM4330B1) ||
+ !bacmp(&bda->bdaddr, BDADDR_BCM4334B0) ||
+ !bacmp(&bda->bdaddr, BDADDR_BCM4345C5) ||
+ !bacmp(&bda->bdaddr, BDADDR_BCM43430A0) ||
+ !bacmp(&bda->bdaddr, BDADDR_BCM43430A1) ||
+ !bacmp(&bda->bdaddr, BDADDR_BCM43341B)) {
+ /* Try falling back to BDADDR EFI variable */
+ if (btbcm_set_bdaddr_from_efi(hdev) != 0) {
+ bt_dev_info(hdev, "BCM: Using default device address (%pMR)",
+ &bda->bdaddr);
+ set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
+ }
+ }
+
+ kfree_skb(skb);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(btbcm_check_bdaddr);
+
+int btbcm_set_bdaddr(struct hci_dev *hdev, const bdaddr_t *bdaddr)
+{
+ struct sk_buff *skb;
+ int err;
+
+ skb = __hci_cmd_sync(hdev, 0xfc01, 6, bdaddr, HCI_INIT_TIMEOUT);
+ if (IS_ERR(skb)) {
+ err = PTR_ERR(skb);
+ bt_dev_err(hdev, "BCM: Change address command failed (%d)", err);
+ return err;
+ }
+ kfree_skb(skb);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(btbcm_set_bdaddr);
+
+int btbcm_read_pcm_int_params(struct hci_dev *hdev,
+ struct bcm_set_pcm_int_params *params)
+{
+ struct sk_buff *skb;
+ int err = 0;
+
+ skb = __hci_cmd_sync(hdev, 0xfc1d, 0, NULL, HCI_INIT_TIMEOUT);
+ if (IS_ERR(skb)) {
+ err = PTR_ERR(skb);
+ bt_dev_err(hdev, "BCM: Read PCM int params failed (%d)", err);
+ return err;
+ }
+
+ if (skb->len != 6 || skb->data[0]) {
+ bt_dev_err(hdev, "BCM: Read PCM int params length mismatch");
+ kfree_skb(skb);
+ return -EIO;
+ }
+
+ if (params)
+ memcpy(params, skb->data + 1, 5);
+
+ kfree_skb(skb);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(btbcm_read_pcm_int_params);
+
+int btbcm_write_pcm_int_params(struct hci_dev *hdev,
+ const struct bcm_set_pcm_int_params *params)
+{
+ struct sk_buff *skb;
+ int err;
+
+ skb = __hci_cmd_sync(hdev, 0xfc1c, 5, params, HCI_INIT_TIMEOUT);
+ if (IS_ERR(skb)) {
+ err = PTR_ERR(skb);
+ bt_dev_err(hdev, "BCM: Write PCM int params failed (%d)", err);
+ return err;
+ }
+ kfree_skb(skb);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(btbcm_write_pcm_int_params);
+
+int btbcm_patchram(struct hci_dev *hdev, const struct firmware *fw)
+{
+ const struct hci_command_hdr *cmd;
+ const u8 *fw_ptr;
+ size_t fw_size;
+ struct sk_buff *skb;
+ u16 opcode;
+ int err = 0;
+
+ /* Start Download */
+ skb = __hci_cmd_sync(hdev, 0xfc2e, 0, NULL, HCI_INIT_TIMEOUT);
+ if (IS_ERR(skb)) {
+ err = PTR_ERR(skb);
+ bt_dev_err(hdev, "BCM: Download Minidrv command failed (%d)",
+ err);
+ goto done;
+ }
+ kfree_skb(skb);
+
+ /* 50 msec delay after Download Minidrv completes */
+ msleep(50);
+
+ fw_ptr = fw->data;
+ fw_size = fw->size;
+
+ while (fw_size >= sizeof(*cmd)) {
+ const u8 *cmd_param;
+
+ cmd = (struct hci_command_hdr *)fw_ptr;
+ fw_ptr += sizeof(*cmd);
+ fw_size -= sizeof(*cmd);
+
+ if (fw_size < cmd->plen) {
+ bt_dev_err(hdev, "BCM: Patch is corrupted");
+ err = -EINVAL;
+ goto done;
+ }
+
+ cmd_param = fw_ptr;
+ fw_ptr += cmd->plen;
+ fw_size -= cmd->plen;
+
+ opcode = le16_to_cpu(cmd->opcode);
+
+ skb = __hci_cmd_sync(hdev, opcode, cmd->plen, cmd_param,
+ HCI_INIT_TIMEOUT);
+ if (IS_ERR(skb)) {
+ err = PTR_ERR(skb);
+ bt_dev_err(hdev, "BCM: Patch command %04x failed (%d)",
+ opcode, err);
+ goto done;
+ }
+ kfree_skb(skb);
+ }
+
+ /* 250 msec delay after Launch Ram completes */
+ msleep(250);
+
+done:
+ return err;
+}
+EXPORT_SYMBOL(btbcm_patchram);
+
+static int btbcm_reset(struct hci_dev *hdev)
+{
+ struct sk_buff *skb;
+
+ skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
+ if (IS_ERR(skb)) {
+ int err = PTR_ERR(skb);
+
+ bt_dev_err(hdev, "BCM: Reset failed (%d)", err);
+ return err;
+ }
+ kfree_skb(skb);
+
+ /* 100 msec delay for module to complete reset process */
+ msleep(100);
+
+ return 0;
+}
+
+static struct sk_buff *btbcm_read_local_name(struct hci_dev *hdev)
+{
+ struct sk_buff *skb;
+
+ skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_NAME, 0, NULL,
+ HCI_INIT_TIMEOUT);
+ if (IS_ERR(skb)) {
+ bt_dev_err(hdev, "BCM: Reading local name failed (%ld)",
+ PTR_ERR(skb));
+ return skb;
+ }
+
+ if (skb->len != sizeof(struct hci_rp_read_local_name)) {
+ bt_dev_err(hdev, "BCM: Local name length mismatch");
+ kfree_skb(skb);
+ return ERR_PTR(-EIO);
+ }
+
+ return skb;
+}
+
+static struct sk_buff *btbcm_read_local_version(struct hci_dev *hdev)
+{
+ struct sk_buff *skb;
+
+ skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
+ HCI_INIT_TIMEOUT);
+ if (IS_ERR(skb)) {
+ bt_dev_err(hdev, "BCM: Reading local version info failed (%ld)",
+ PTR_ERR(skb));
+ return skb;
+ }
+
+ if (skb->len != sizeof(struct hci_rp_read_local_version)) {
+ bt_dev_err(hdev, "BCM: Local version length mismatch");
+ kfree_skb(skb);
+ return ERR_PTR(-EIO);
+ }
+
+ return skb;
+}
+
+static struct sk_buff *btbcm_read_verbose_config(struct hci_dev *hdev)
+{
+ struct sk_buff *skb;
+
+ skb = __hci_cmd_sync(hdev, 0xfc79, 0, NULL, HCI_INIT_TIMEOUT);
+ if (IS_ERR(skb)) {
+ bt_dev_err(hdev, "BCM: Read verbose config info failed (%ld)",
+ PTR_ERR(skb));
+ return skb;
+ }
+
+ if (skb->len != 7) {
+ bt_dev_err(hdev, "BCM: Verbose config length mismatch");
+ kfree_skb(skb);
+ return ERR_PTR(-EIO);
+ }
+
+ return skb;
+}
+
+static struct sk_buff *btbcm_read_controller_features(struct hci_dev *hdev)
+{
+ struct sk_buff *skb;
+
+ skb = __hci_cmd_sync(hdev, 0xfc6e, 0, NULL, HCI_INIT_TIMEOUT);
+ if (IS_ERR(skb)) {
+ bt_dev_err(hdev, "BCM: Read controller features failed (%ld)",
+ PTR_ERR(skb));
+ return skb;
+ }
+
+ if (skb->len != 9) {
+ bt_dev_err(hdev, "BCM: Controller features length mismatch");
+ kfree_skb(skb);
+ return ERR_PTR(-EIO);
+ }
+
+ return skb;
+}
+
+static struct sk_buff *btbcm_read_usb_product(struct hci_dev *hdev)
+{
+ struct sk_buff *skb;
+
+ skb = __hci_cmd_sync(hdev, 0xfc5a, 0, NULL, HCI_INIT_TIMEOUT);
+ if (IS_ERR(skb)) {
+ bt_dev_err(hdev, "BCM: Read USB product info failed (%ld)",
+ PTR_ERR(skb));
+ return skb;
+ }
+
+ if (skb->len != 5) {
+ bt_dev_err(hdev, "BCM: USB product length mismatch");
+ kfree_skb(skb);
+ return ERR_PTR(-EIO);
+ }
+
+ return skb;
+}
+
+static const struct dmi_system_id disable_broken_read_transmit_power[] = {
+ {
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro16,1"),
+ },
+ },
+ {
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro16,2"),
+ },
+ },
+ {
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro16,4"),
+ },
+ },
+ {
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "MacBookAir8,1"),
+ },
+ },
+ {
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "MacBookAir8,2"),
+ },
+ },
+ {
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "iMac20,1"),
+ },
+ },
+ {
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "iMac20,2"),
+ },
+ },
+ { }
+};
+
+static int btbcm_read_info(struct hci_dev *hdev)
+{
+ struct sk_buff *skb;
+
+ /* Read Verbose Config Version Info */
+ skb = btbcm_read_verbose_config(hdev);
+ if (IS_ERR(skb))
+ return PTR_ERR(skb);
+
+ bt_dev_info(hdev, "BCM: chip id %u", skb->data[1]);
+ kfree_skb(skb);
+
+ return 0;
+}
+
+static int btbcm_print_controller_features(struct hci_dev *hdev)
+{
+ struct sk_buff *skb;
+
+ /* Read Controller Features */
+ skb = btbcm_read_controller_features(hdev);
+ if (IS_ERR(skb))
+ return PTR_ERR(skb);
+
+ bt_dev_info(hdev, "BCM: features 0x%2.2x", skb->data[1]);
+ kfree_skb(skb);
+
+ /* Read DMI and disable broken Read LE Min/Max Tx Power */
+ if (dmi_first_match(disable_broken_read_transmit_power))
+ set_bit(HCI_QUIRK_BROKEN_READ_TRANSMIT_POWER, &hdev->quirks);
+
+ return 0;
+}
+
+static int btbcm_print_local_name(struct hci_dev *hdev)
+{
+ struct sk_buff *skb;
+
+ /* Read Local Name */
+ skb = btbcm_read_local_name(hdev);
+ if (IS_ERR(skb))
+ return PTR_ERR(skb);
+
+ bt_dev_info(hdev, "%s", (char *)(skb->data + 1));
+ kfree_skb(skb);
+
+ return 0;
+}
+
+struct bcm_subver_table {
+ u16 subver;
+ const char *name;
+};
+
+static const struct bcm_subver_table bcm_uart_subver_table[] = {
+ { 0x1111, "BCM4362A2" }, /* 000.017.017 */
+ { 0x4103, "BCM4330B1" }, /* 002.001.003 */
+ { 0x410d, "BCM4334B0" }, /* 002.001.013 */
+ { 0x410e, "BCM43341B0" }, /* 002.001.014 */
+ { 0x4204, "BCM2076B1" }, /* 002.002.004 */
+ { 0x4406, "BCM4324B3" }, /* 002.004.006 */
+ { 0x4606, "BCM4324B5" }, /* 002.006.006 */
+ { 0x6109, "BCM4335C0" }, /* 003.001.009 */
+ { 0x610c, "BCM4354" }, /* 003.001.012 */
+ { 0x2122, "BCM4343A0" }, /* 001.001.034 */
+ { 0x2209, "BCM43430A1" }, /* 001.002.009 */
+ { 0x6119, "BCM4345C0" }, /* 003.001.025 */
+ { 0x6606, "BCM4345C5" }, /* 003.006.006 */
+ { 0x230f, "BCM4356A2" }, /* 001.003.015 */
+ { 0x220e, "BCM20702A1" }, /* 001.002.014 */
+ { 0x420d, "BCM4349B1" }, /* 002.002.013 */
+ { 0x420e, "BCM4349B1" }, /* 002.002.014 */
+ { 0x4217, "BCM4329B1" }, /* 002.002.023 */
+ { 0x6106, "BCM4359C0" }, /* 003.001.006 */
+ { 0x4106, "BCM4335A0" }, /* 002.001.006 */
+ { 0x410c, "BCM43430B0" }, /* 002.001.012 */
+ { 0x2119, "BCM4373A0" }, /* 001.001.025 */
+ { }
+};
+
+static const struct bcm_subver_table bcm_usb_subver_table[] = {
+ { 0x2105, "BCM20703A1" }, /* 001.001.005 */
+ { 0x210b, "BCM43142A0" }, /* 001.001.011 */
+ { 0x2112, "BCM4314A0" }, /* 001.001.018 */
+ { 0x2118, "BCM20702A0" }, /* 001.001.024 */
+ { 0x2126, "BCM4335A0" }, /* 001.001.038 */
+ { 0x220e, "BCM20702A1" }, /* 001.002.014 */
+ { 0x230f, "BCM4356A2" }, /* 001.003.015 */
+ { 0x4106, "BCM4335B0" }, /* 002.001.006 */
+ { 0x410e, "BCM20702B0" }, /* 002.001.014 */
+ { 0x6109, "BCM4335C0" }, /* 003.001.009 */
+ { 0x610c, "BCM4354" }, /* 003.001.012 */
+ { 0x6607, "BCM4350C5" }, /* 003.006.007 */
+ { }
+};
+
+/*
+ * This currently only looks up the device tree board appendix,
+ * but can be expanded to other mechanisms.
+ */
+static const char *btbcm_get_board_name(struct device *dev)
+{
+#ifdef CONFIG_OF
+ struct device_node *root;
+ char *board_type;
+ const char *tmp;
+ int len;
+ int i;
+
+ root = of_find_node_by_path("/");
+ if (!root)
+ return NULL;
+
+ if (of_property_read_string_index(root, "compatible", 0, &tmp))
+ return NULL;
+
+ /* get rid of any '/' in the compatible string */
+ len = strlen(tmp) + 1;
+ board_type = devm_kzalloc(dev, len, GFP_KERNEL);
+ strscpy(board_type, tmp, len);
+ for (i = 0; i < len; i++) {
+ if (board_type[i] == '/')
+ board_type[i] = '-';
+ }
+ of_node_put(root);
+
+ return board_type;
+#else
+ return NULL;
+#endif
+}
+
+int btbcm_initialize(struct hci_dev *hdev, bool *fw_load_done, bool use_autobaud_mode)
+{
+ u16 subver, rev, pid, vid;
+ struct sk_buff *skb;
+ struct hci_rp_read_local_version *ver;
+ const struct bcm_subver_table *bcm_subver_table;
+ const char *hw_name = NULL;
+ const char *board_name;
+ char postfix[16] = "";
+ int fw_name_count = 0;
+ bcm_fw_name *fw_name;
+ const struct firmware *fw;
+ int i, err;
+
+ board_name = btbcm_get_board_name(&hdev->dev);
+
+ /* Reset */
+ err = btbcm_reset(hdev);
+ if (err)
+ return err;
+
+ /* Read Local Version Info */
+ skb = btbcm_read_local_version(hdev);
+ if (IS_ERR(skb))
+ return PTR_ERR(skb);
+
+ ver = (struct hci_rp_read_local_version *)skb->data;
+ rev = le16_to_cpu(ver->hci_rev);
+ subver = le16_to_cpu(ver->lmp_subver);
+ kfree_skb(skb);
+
+ /* Read controller information */
+ if (!(*fw_load_done)) {
+ err = btbcm_read_info(hdev);
+ if (err)
+ return err;
+ }
+
+ if (!use_autobaud_mode) {
+ err = btbcm_print_controller_features(hdev);
+ if (err)
+ return err;
+
+ err = btbcm_print_local_name(hdev);
+ if (err)
+ return err;
+ }
+
+ bcm_subver_table = (hdev->bus == HCI_USB) ? bcm_usb_subver_table :
+ bcm_uart_subver_table;
+
+ for (i = 0; bcm_subver_table[i].name; i++) {
+ if (subver == bcm_subver_table[i].subver) {
+ hw_name = bcm_subver_table[i].name;
+ break;
+ }
+ }
+
+ bt_dev_info(hdev, "%s (%3.3u.%3.3u.%3.3u) build %4.4u",
+ hw_name ? hw_name : "BCM", (subver & 0xe000) >> 13,
+ (subver & 0x1f00) >> 8, (subver & 0x00ff), rev & 0x0fff);
+
+ if (*fw_load_done)
+ return 0;
+
+ if (hdev->bus == HCI_USB) {
+ /* Read USB Product Info */
+ skb = btbcm_read_usb_product(hdev);
+ if (IS_ERR(skb))
+ return PTR_ERR(skb);
+
+ vid = get_unaligned_le16(skb->data + 1);
+ pid = get_unaligned_le16(skb->data + 3);
+ kfree_skb(skb);
+
+ snprintf(postfix, sizeof(postfix), "-%4.4x-%4.4x", vid, pid);
+ }
+
+ fw_name = kmalloc(BCM_FW_NAME_COUNT_MAX * BCM_FW_NAME_LEN, GFP_KERNEL);
+ if (!fw_name)
+ return -ENOMEM;
+
+ if (hw_name) {
+ if (board_name) {
+ snprintf(fw_name[fw_name_count], BCM_FW_NAME_LEN,
+ "brcm/%s%s.%s.hcd", hw_name, postfix, board_name);
+ fw_name_count++;
+ }
+ snprintf(fw_name[fw_name_count], BCM_FW_NAME_LEN,
+ "brcm/%s%s.hcd", hw_name, postfix);
+ fw_name_count++;
+ }
+
+ if (board_name) {
+ snprintf(fw_name[fw_name_count], BCM_FW_NAME_LEN,
+ "brcm/BCM%s.%s.hcd", postfix, board_name);
+ fw_name_count++;
+ }
+ snprintf(fw_name[fw_name_count], BCM_FW_NAME_LEN,
+ "brcm/BCM%s.hcd", postfix);
+ fw_name_count++;
+
+ for (i = 0; i < fw_name_count; i++) {
+ err = firmware_request_nowarn(&fw, fw_name[i], &hdev->dev);
+ if (err == 0) {
+ bt_dev_info(hdev, "%s '%s' Patch",
+ hw_name ? hw_name : "BCM", fw_name[i]);
+ *fw_load_done = true;
+ break;
+ }
+ }
+
+ if (*fw_load_done) {
+ err = btbcm_patchram(hdev, fw);
+ if (err)
+ bt_dev_info(hdev, "BCM: Patch failed (%d)", err);
+
+ release_firmware(fw);
+ } else {
+ bt_dev_err(hdev, "BCM: firmware Patch file not found, tried:");
+ for (i = 0; i < fw_name_count; i++)
+ bt_dev_err(hdev, "BCM: '%s'", fw_name[i]);
+ }
+
+ kfree(fw_name);
+ return 0;
+}
+EXPORT_SYMBOL_GPL(btbcm_initialize);
+
+int btbcm_finalize(struct hci_dev *hdev, bool *fw_load_done, bool use_autobaud_mode)
+{
+ int err;
+
+ /* Re-initialize if necessary */
+ if (*fw_load_done) {
+ err = btbcm_initialize(hdev, fw_load_done, use_autobaud_mode);
+ if (err)
+ return err;
+ }
+
+ btbcm_check_bdaddr(hdev);
+
+ set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(btbcm_finalize);
+
+int btbcm_setup_patchram(struct hci_dev *hdev)
+{
+ bool fw_load_done = false;
+ bool use_autobaud_mode = false;
+ int err;
+
+ /* Initialize */
+ err = btbcm_initialize(hdev, &fw_load_done, use_autobaud_mode);
+ if (err)
+ return err;
+
+ /* Re-initialize after loading Patch */
+ return btbcm_finalize(hdev, &fw_load_done, use_autobaud_mode);
+}
+EXPORT_SYMBOL_GPL(btbcm_setup_patchram);
+
+int btbcm_setup_apple(struct hci_dev *hdev)
+{
+ struct sk_buff *skb;
+ int err;
+
+ /* Reset */
+ err = btbcm_reset(hdev);
+ if (err)
+ return err;
+
+ /* Read Verbose Config Version Info */
+ skb = btbcm_read_verbose_config(hdev);
+ if (!IS_ERR(skb)) {
+ bt_dev_info(hdev, "BCM: chip id %u build %4.4u",
+ skb->data[1], get_unaligned_le16(skb->data + 5));
+ kfree_skb(skb);
+ }
+
+ /* Read USB Product Info */
+ skb = btbcm_read_usb_product(hdev);
+ if (!IS_ERR(skb)) {
+ bt_dev_info(hdev, "BCM: product %4.4x:%4.4x",
+ get_unaligned_le16(skb->data + 1),
+ get_unaligned_le16(skb->data + 3));
+ kfree_skb(skb);
+ }
+
+ /* Read Controller Features */
+ skb = btbcm_read_controller_features(hdev);
+ if (!IS_ERR(skb)) {
+ bt_dev_info(hdev, "BCM: features 0x%2.2x", skb->data[1]);
+ kfree_skb(skb);
+ }
+
+ /* Read Local Name */
+ skb = btbcm_read_local_name(hdev);
+ if (!IS_ERR(skb)) {
+ bt_dev_info(hdev, "%s", (char *)(skb->data + 1));
+ kfree_skb(skb);
+ }
+
+ set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(btbcm_setup_apple);
+
+MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
+MODULE_DESCRIPTION("Bluetooth support for Broadcom devices ver " VERSION);
+MODULE_VERSION(VERSION);
+MODULE_LICENSE("GPL");
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-14 13:11:06 +0000