summaryrefslogtreecommitdiff
path: root/drivers/bluetooth
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/bluetooth')
-rw-r--r--drivers/bluetooth/btintel.c291
-rw-r--r--drivers/bluetooth/btintel.h91
-rw-r--r--drivers/bluetooth/btmrvl_sdio.c54
-rw-r--r--drivers/bluetooth/btmtksdio.c4
-rw-r--r--drivers/bluetooth/btusb.c129
-rw-r--r--drivers/bluetooth/hci_h5.c2
-rw-r--r--drivers/bluetooth/hci_intel.c54
-rw-r--r--drivers/bluetooth/hci_ldisc.c1
-rw-r--r--drivers/bluetooth/hci_qca.c8
-rw-r--r--drivers/bluetooth/hci_serdev.c36
10 files changed, 533 insertions, 137 deletions
diff --git a/drivers/bluetooth/btintel.c b/drivers/bluetooth/btintel.c
index 5fa5be3c5598..88ce5f0ffc4b 100644
--- a/drivers/bluetooth/btintel.c
+++ b/drivers/bluetooth/btintel.c
@@ -18,7 +18,11 @@
#define VERSION "0.1"
-#define BDADDR_INTEL (&(bdaddr_t) {{0x00, 0x8b, 0x9e, 0x19, 0x03, 0x00}})
+#define BDADDR_INTEL (&(bdaddr_t){{0x00, 0x8b, 0x9e, 0x19, 0x03, 0x00}})
+#define RSA_HEADER_LEN 644
+#define CSS_HEADER_OFFSET 8
+#define ECDSA_OFFSET 644
+#define ECDSA_HEADER_LEN 320
int btintel_check_bdaddr(struct hci_dev *hdev)
{
@@ -360,6 +364,144 @@ int btintel_read_version(struct hci_dev *hdev, struct intel_version *ver)
}
EXPORT_SYMBOL_GPL(btintel_read_version);
+void btintel_version_info_tlv(struct hci_dev *hdev, struct intel_version_tlv *version)
+{
+ const char *variant;
+
+ switch (version->img_type) {
+ case 0x01:
+ variant = "Bootloader";
+ bt_dev_info(hdev, "Device revision is %u", version->dev_rev_id);
+ bt_dev_info(hdev, "Secure boot is %s",
+ version->secure_boot ? "enabled" : "disabled");
+ bt_dev_info(hdev, "OTP lock is %s",
+ version->otp_lock ? "enabled" : "disabled");
+ bt_dev_info(hdev, "API lock is %s",
+ version->api_lock ? "enabled" : "disabled");
+ bt_dev_info(hdev, "Debug lock is %s",
+ version->debug_lock ? "enabled" : "disabled");
+ bt_dev_info(hdev, "Minimum firmware build %u week %u %u",
+ version->min_fw_build_nn, version->min_fw_build_cw,
+ 2000 + version->min_fw_build_yy);
+ break;
+ case 0x03:
+ variant = "Firmware";
+ break;
+ default:
+ bt_dev_err(hdev, "Unsupported image type(%02x)", version->img_type);
+ goto done;
+ }
+
+ bt_dev_info(hdev, "%s timestamp %u.%u buildtype %u build %u", variant,
+ 2000 + (version->timestamp >> 8), version->timestamp & 0xff,
+ version->build_type, version->build_num);
+
+done:
+ return;
+}
+EXPORT_SYMBOL_GPL(btintel_version_info_tlv);
+
+int btintel_read_version_tlv(struct hci_dev *hdev, struct intel_version_tlv *version)
+{
+ struct sk_buff *skb;
+ const u8 param[1] = { 0xFF };
+
+ if (!version)
+ return -EINVAL;
+
+ skb = __hci_cmd_sync(hdev, 0xfc05, 1, param, HCI_CMD_TIMEOUT);
+ if (IS_ERR(skb)) {
+ bt_dev_err(hdev, "Reading Intel version information failed (%ld)",
+ PTR_ERR(skb));
+ return PTR_ERR(skb);
+ }
+
+ if (skb->data[0]) {
+ bt_dev_err(hdev, "Intel Read Version command failed (%02x)",
+ skb->data[0]);
+ kfree_skb(skb);
+ return -EIO;
+ }
+
+ /* Consume Command Complete Status field */
+ skb_pull(skb, 1);
+
+ /* Event parameters contatin multiple TLVs. Read each of them
+ * and only keep the required data. Also, it use existing legacy
+ * version field like hw_platform, hw_variant, and fw_variant
+ * to keep the existing setup flow
+ */
+ while (skb->len) {
+ struct intel_tlv *tlv;
+
+ tlv = (struct intel_tlv *)skb->data;
+ switch (tlv->type) {
+ case INTEL_TLV_CNVI_TOP:
+ version->cnvi_top = get_unaligned_le32(tlv->val);
+ break;
+ case INTEL_TLV_CNVR_TOP:
+ version->cnvr_top = get_unaligned_le32(tlv->val);
+ break;
+ case INTEL_TLV_CNVI_BT:
+ version->cnvi_bt = get_unaligned_le32(tlv->val);
+ break;
+ case INTEL_TLV_CNVR_BT:
+ version->cnvr_bt = get_unaligned_le32(tlv->val);
+ break;
+ case INTEL_TLV_DEV_REV_ID:
+ version->dev_rev_id = get_unaligned_le16(tlv->val);
+ break;
+ case INTEL_TLV_IMAGE_TYPE:
+ version->img_type = tlv->val[0];
+ break;
+ case INTEL_TLV_TIME_STAMP:
+ version->timestamp = get_unaligned_le16(tlv->val);
+ break;
+ case INTEL_TLV_BUILD_TYPE:
+ version->build_type = tlv->val[0];
+ break;
+ case INTEL_TLV_BUILD_NUM:
+ version->build_num = get_unaligned_le32(tlv->val);
+ break;
+ case INTEL_TLV_SECURE_BOOT:
+ version->secure_boot = tlv->val[0];
+ break;
+ case INTEL_TLV_OTP_LOCK:
+ version->otp_lock = tlv->val[0];
+ break;
+ case INTEL_TLV_API_LOCK:
+ version->api_lock = tlv->val[0];
+ break;
+ case INTEL_TLV_DEBUG_LOCK:
+ version->debug_lock = tlv->val[0];
+ break;
+ case INTEL_TLV_MIN_FW:
+ version->min_fw_build_nn = tlv->val[0];
+ version->min_fw_build_cw = tlv->val[1];
+ version->min_fw_build_yy = tlv->val[2];
+ break;
+ case INTEL_TLV_LIMITED_CCE:
+ version->limited_cce = tlv->val[0];
+ break;
+ case INTEL_TLV_SBE_TYPE:
+ version->sbe_type = tlv->val[0];
+ break;
+ case INTEL_TLV_OTP_BDADDR:
+ memcpy(&version->otp_bd_addr, tlv->val, tlv->len);
+ break;
+ default:
+ /* Ignore rest of information */
+ break;
+ }
+ /* consume the current tlv and move to next*/
+ skb_pull(skb, tlv->len + sizeof(*tlv));
+ }
+
+ kfree_skb(skb);
+ return 0;
+}
+EXPORT_SYMBOL_GPL(btintel_read_version_tlv);
+
/* ------- REGMAP IBT SUPPORT ------- */
#define IBT_REG_MODE_8BIT 0x00
@@ -626,12 +768,10 @@ int btintel_read_boot_params(struct hci_dev *hdev,
}
EXPORT_SYMBOL_GPL(btintel_read_boot_params);
-int btintel_download_firmware(struct hci_dev *hdev, const struct firmware *fw,
- u32 *boot_param)
+static int btintel_sfi_rsa_header_secure_send(struct hci_dev *hdev,
+ const struct firmware *fw)
{
int err;
- const u8 *fw_ptr;
- u32 frag_len;
/* Start the firmware download transaction with the Init fragment
* represented by the 128 bytes of CSS header.
@@ -660,8 +800,56 @@ int btintel_download_firmware(struct hci_dev *hdev, const struct firmware *fw,
goto done;
}
- fw_ptr = fw->data + 644;
+done:
+ return err;
+}
+
+static int btintel_sfi_ecdsa_header_secure_send(struct hci_dev *hdev,
+ const struct firmware *fw)
+{
+ int err;
+
+ /* Start the firmware download transaction with the Init fragment
+ * represented by the 128 bytes of CSS header.
+ */
+ err = btintel_secure_send(hdev, 0x00, 128, fw->data + 644);
+ if (err < 0) {
+ bt_dev_err(hdev, "Failed to send firmware header (%d)", err);
+ return err;
+ }
+
+ /* Send the 96 bytes of public key information from the firmware
+ * as the PKey fragment.
+ */
+ err = btintel_secure_send(hdev, 0x03, 96, fw->data + 644 + 128);
+ if (err < 0) {
+ bt_dev_err(hdev, "Failed to send firmware pkey (%d)", err);
+ return err;
+ }
+
+ /* Send the 96 bytes of signature information from the firmware
+ * as the Sign fragment
+ */
+ err = btintel_secure_send(hdev, 0x02, 96, fw->data + 644 + 224);
+ if (err < 0) {
+ bt_dev_err(hdev, "Failed to send firmware signature (%d)",
+ err);
+ return err;
+ }
+ return 0;
+}
+
+static int btintel_download_firmware_payload(struct hci_dev *hdev,
+ const struct firmware *fw,
+ u32 *boot_param, size_t offset)
+{
+ int err;
+ const u8 *fw_ptr;
+ u32 frag_len;
+
+ fw_ptr = fw->data + offset;
frag_len = 0;
+ err = -EINVAL;
while (fw_ptr - fw->data < fw->size) {
struct hci_command_hdr *cmd = (void *)(fw_ptr + frag_len);
@@ -707,8 +895,99 @@ int btintel_download_firmware(struct hci_dev *hdev, const struct firmware *fw,
done:
return err;
}
+
+int btintel_download_firmware(struct hci_dev *hdev,
+ const struct firmware *fw,
+ u32 *boot_param)
+{
+ int err;
+
+ err = btintel_sfi_rsa_header_secure_send(hdev, fw);
+ if (err)
+ return err;
+
+ return btintel_download_firmware_payload(hdev, fw, boot_param,
+ RSA_HEADER_LEN);
+}
EXPORT_SYMBOL_GPL(btintel_download_firmware);
+int btintel_download_firmware_newgen(struct hci_dev *hdev,
+ const struct firmware *fw, u32 *boot_param,
+ u8 hw_variant, u8 sbe_type)
+{
+ int err;
+ u32 css_header_ver;
+
+ /* iBT hardware variants 0x0b, 0x0c, 0x11, 0x12, 0x13, 0x14 support
+ * only RSA secure boot engine. Hence, the corresponding sfi file will
+ * have RSA header of 644 bytes followed by Command Buffer.
+ *
+ * iBT hardware variants 0x17, 0x18 onwards support both RSA and ECDSA
+ * secure boot engine. As a result, the corresponding sfi file will
+ * have RSA header of 644, ECDSA header of 320 bytes followed by
+ * Command Buffer.
+ *
+ * CSS Header byte positions 0x08 to 0x0B represent the CSS Header
+ * version: RSA(0x00010000) , ECDSA (0x00020000)
+ */
+ css_header_ver = get_unaligned_le32(fw->data + CSS_HEADER_OFFSET);
+ if (css_header_ver != 0x00010000) {
+ bt_dev_err(hdev, "Invalid CSS Header version");
+ return -EINVAL;
+ }
+
+ if (hw_variant <= 0x14) {
+ if (sbe_type != 0x00) {
+ bt_dev_err(hdev, "Invalid SBE type for hardware variant (%d)",
+ hw_variant);
+ return -EINVAL;
+ }
+
+ err = btintel_sfi_rsa_header_secure_send(hdev, fw);
+ if (err)
+ return err;
+
+ err = btintel_download_firmware_payload(hdev, fw, boot_param, RSA_HEADER_LEN);
+ if (err)
+ return err;
+ } else if (hw_variant >= 0x17) {
+ /* Check if CSS header for ECDSA follows the RSA header */
+ if (fw->data[ECDSA_OFFSET] != 0x06)
+ return -EINVAL;
+
+ /* Check if the CSS Header version is ECDSA(0x00020000) */
+ css_header_ver = get_unaligned_le32(fw->data + ECDSA_OFFSET + CSS_HEADER_OFFSET);
+ if (css_header_ver != 0x00020000) {
+ bt_dev_err(hdev, "Invalid CSS Header version");
+ return -EINVAL;
+ }
+
+ if (sbe_type == 0x00) {
+ err = btintel_sfi_rsa_header_secure_send(hdev, fw);
+ if (err)
+ return err;
+
+ err = btintel_download_firmware_payload(hdev, fw,
+ boot_param,
+ RSA_HEADER_LEN + ECDSA_HEADER_LEN);
+ if (err)
+ return err;
+ } else if (sbe_type == 0x01) {
+ err = btintel_sfi_ecdsa_header_secure_send(hdev, fw);
+ if (err)
+ return err;
+
+ err = btintel_download_firmware_payload(hdev, fw,
+ boot_param,
+ RSA_HEADER_LEN + ECDSA_HEADER_LEN);
+ if (err)
+ return err;
+ }
+ }
+ return 0;
+}
+EXPORT_SYMBOL_GPL(btintel_download_firmware_newgen);
+
void btintel_reset_to_bootloader(struct hci_dev *hdev)
{
struct intel_reset params;
diff --git a/drivers/bluetooth/btintel.h b/drivers/bluetooth/btintel.h
index 08e20606fb58..09346ae308eb 100644
--- a/drivers/bluetooth/btintel.h
+++ b/drivers/bluetooth/btintel.h
@@ -6,6 +6,72 @@
* Copyright (C) 2015 Intel Corporation
*/
+/* List of tlv type */
+enum {
+ INTEL_TLV_CNVI_TOP = 0x10,
+ INTEL_TLV_CNVR_TOP,
+ INTEL_TLV_CNVI_BT,
+ INTEL_TLV_CNVR_BT,
+ INTEL_TLV_CNVI_OTP,
+ INTEL_TLV_CNVR_OTP,
+ INTEL_TLV_DEV_REV_ID,
+ INTEL_TLV_USB_VENDOR_ID,
+ INTEL_TLV_USB_PRODUCT_ID,
+ INTEL_TLV_PCIE_VENDOR_ID,
+ INTEL_TLV_PCIE_DEVICE_ID,
+ INTEL_TLV_PCIE_SUBSYSTEM_ID,
+ INTEL_TLV_IMAGE_TYPE,
+ INTEL_TLV_TIME_STAMP,
+ INTEL_TLV_BUILD_TYPE,
+ INTEL_TLV_BUILD_NUM,
+ INTEL_TLV_FW_BUILD_PRODUCT,
+ INTEL_TLV_FW_BUILD_HW,
+ INTEL_TLV_FW_STEP,
+ INTEL_TLV_BT_SPEC,
+ INTEL_TLV_MFG_NAME,
+ INTEL_TLV_HCI_REV,
+ INTEL_TLV_LMP_SUBVER,
+ INTEL_TLV_OTP_PATCH_VER,
+ INTEL_TLV_SECURE_BOOT,
+ INTEL_TLV_KEY_FROM_HDR,
+ INTEL_TLV_OTP_LOCK,
+ INTEL_TLV_API_LOCK,
+ INTEL_TLV_DEBUG_LOCK,
+ INTEL_TLV_MIN_FW,
+ INTEL_TLV_LIMITED_CCE,
+ INTEL_TLV_SBE_TYPE,
+ INTEL_TLV_OTP_BDADDR,
+ INTEL_TLV_UNLOCKED_STATE
+};
+
+struct intel_tlv {
+ u8 type;
+ u8 len;
+ u8 val[0];
+} __packed;
+
+struct intel_version_tlv {
+ u32 cnvi_top;
+ u32 cnvr_top;
+ u32 cnvi_bt;
+ u32 cnvr_bt;
+ u16 dev_rev_id;
+ u8 img_type;
+ u16 timestamp;
+ u8 build_type;
+ u32 build_num;
+ u8 secure_boot;
+ u8 otp_lock;
+ u8 api_lock;
+ u8 debug_lock;
+ u8 min_fw_build_nn;
+ u8 min_fw_build_cw;
+ u8 min_fw_build_yy;
+ u8 limited_cce;
+ u8 sbe_type;
+ bdaddr_t otp_bd_addr;
+};
+
struct intel_version {
u8 status;
u8 hw_platform;
@@ -77,12 +143,14 @@ int btintel_set_diag_mfg(struct hci_dev *hdev, bool enable);
void btintel_hw_error(struct hci_dev *hdev, u8 code);
void btintel_version_info(struct hci_dev *hdev, struct intel_version *ver);
+void btintel_version_info_tlv(struct hci_dev *hdev, struct intel_version_tlv *version);
int btintel_secure_send(struct hci_dev *hdev, u8 fragment_type, u32 plen,
const void *param);
int btintel_load_ddc_config(struct hci_dev *hdev, const char *ddc_name);
int btintel_set_event_mask(struct hci_dev *hdev, bool debug);
int btintel_set_event_mask_mfg(struct hci_dev *hdev, bool debug);
int btintel_read_version(struct hci_dev *hdev, struct intel_version *ver);
+int btintel_read_version_tlv(struct hci_dev *hdev, struct intel_version_tlv *ver);
struct regmap *btintel_regmap_init(struct hci_dev *hdev, u16 opcode_read,
u16 opcode_write);
@@ -91,6 +159,10 @@ int btintel_read_boot_params(struct hci_dev *hdev,
struct intel_boot_params *params);
int btintel_download_firmware(struct hci_dev *dev, const struct firmware *fw,
u32 *boot_param);
+int btintel_download_firmware_newgen(struct hci_dev *hdev,
+ const struct firmware *fw,
+ u32 *boot_param, u8 hw_variant,
+ u8 sbe_type);
void btintel_reset_to_bootloader(struct hci_dev *hdev);
int btintel_read_debug_features(struct hci_dev *hdev,
struct intel_debug_features *features);
@@ -137,6 +209,11 @@ static inline void btintel_version_info(struct hci_dev *hdev,
{
}
+static inline void btintel_version_info_tlv(struct hci_dev *hdev,
+ struct intel_version_tlv *version)
+{
+}
+
static inline int btintel_secure_send(struct hci_dev *hdev, u8 fragment_type,
u32 plen, const void *param)
{
@@ -165,6 +242,12 @@ static inline int btintel_read_version(struct hci_dev *hdev,
return -EOPNOTSUPP;
}
+static inline int btintel_read_version_tlv(struct hci_dev *hdev,
+ struct intel_version_tlv *ver)
+{
+ return -EOPNOTSUPP;
+}
+
static inline struct regmap *btintel_regmap_init(struct hci_dev *hdev,
u16 opcode_read,
u16 opcode_write)
@@ -191,6 +274,14 @@ static inline int btintel_download_firmware(struct hci_dev *dev,
return -EOPNOTSUPP;
}
+static inline int btintel_download_firmware_newgen(struct hci_dev *hdev,
+ const struct firmware *fw,
+ u32 *boot_param,
+ u8 hw_variant, u8 sbe_type)
+{
+ return -EOPNOTSUPP;
+}
+
static inline void btintel_reset_to_bootloader(struct hci_dev *hdev)
{
}
diff --git a/drivers/bluetooth/btmrvl_sdio.c b/drivers/bluetooth/btmrvl_sdio.c
index d15fd5be0216..33d58b30c5ac 100644
--- a/drivers/bluetooth/btmrvl_sdio.c
+++ b/drivers/bluetooth/btmrvl_sdio.c
@@ -215,30 +215,7 @@ static const struct btmrvl_sdio_card_reg btmrvl_reg_8897 = {
.fw_dump_end = 0xea,
};
-static const struct btmrvl_sdio_card_reg btmrvl_reg_8977 = {
- .cfg = 0x00,
- .host_int_mask = 0x08,
- .host_intstatus = 0x0c,
- .card_status = 0x5c,
- .sq_read_base_addr_a0 = 0xf8,
- .sq_read_base_addr_a1 = 0xf9,
- .card_revision = 0xc8,
- .card_fw_status0 = 0xe8,
- .card_fw_status1 = 0xe9,
- .card_rx_len = 0xea,
- .card_rx_unit = 0xeb,
- .io_port_0 = 0xe4,
- .io_port_1 = 0xe5,
- .io_port_2 = 0xe6,
- .int_read_to_clear = true,
- .host_int_rsr = 0x04,
- .card_misc_cfg = 0xD8,
- .fw_dump_ctrl = 0xf0,
- .fw_dump_start = 0xf1,
- .fw_dump_end = 0xf8,
-};
-
-static const struct btmrvl_sdio_card_reg btmrvl_reg_8987 = {
+static const struct btmrvl_sdio_card_reg btmrvl_reg_89xx = {
.cfg = 0x00,
.host_int_mask = 0x08,
.host_intstatus = 0x0c,
@@ -261,29 +238,6 @@ static const struct btmrvl_sdio_card_reg btmrvl_reg_8987 = {
.fw_dump_end = 0xf8,
};
-static const struct btmrvl_sdio_card_reg btmrvl_reg_8997 = {
- .cfg = 0x00,
- .host_int_mask = 0x08,
- .host_intstatus = 0x0c,
- .card_status = 0x5c,
- .sq_read_base_addr_a0 = 0xf8,
- .sq_read_base_addr_a1 = 0xf9,
- .card_revision = 0xc8,
- .card_fw_status0 = 0xe8,
- .card_fw_status1 = 0xe9,
- .card_rx_len = 0xea,
- .card_rx_unit = 0xeb,
- .io_port_0 = 0xe4,
- .io_port_1 = 0xe5,
- .io_port_2 = 0xe6,
- .int_read_to_clear = true,
- .host_int_rsr = 0x04,
- .card_misc_cfg = 0xD8,
- .fw_dump_ctrl = 0xf0,
- .fw_dump_start = 0xf1,
- .fw_dump_end = 0xf8,
-};
-
static const struct btmrvl_sdio_device btmrvl_sdio_sd8688 = {
.helper = "mrvl/sd8688_helper.bin",
.firmware = "mrvl/sd8688.bin",
@@ -332,7 +286,7 @@ static const struct btmrvl_sdio_device btmrvl_sdio_sd8897 = {
static const struct btmrvl_sdio_device btmrvl_sdio_sd8977 = {
.helper = NULL,
.firmware = "mrvl/sdsd8977_combo_v2.bin",
- .reg = &btmrvl_reg_8977,
+ .reg = &btmrvl_reg_89xx,
.support_pscan_win_report = true,
.sd_blksz_fw_dl = 256,
.supports_fw_dump = true,
@@ -341,7 +295,7 @@ static const struct btmrvl_sdio_device btmrvl_sdio_sd8977 = {
static const struct btmrvl_sdio_device btmrvl_sdio_sd8987 = {
.helper = NULL,
.firmware = "mrvl/sd8987_uapsta.bin",
- .reg = &btmrvl_reg_8987,
+ .reg = &btmrvl_reg_89xx,
.support_pscan_win_report = true,
.sd_blksz_fw_dl = 256,
.supports_fw_dump = true,
@@ -350,7 +304,7 @@ static const struct btmrvl_sdio_device btmrvl_sdio_sd8987 = {
static const struct btmrvl_sdio_device btmrvl_sdio_sd8997 = {
.helper = NULL,
.firmware = "mrvl/sdsd8997_combo_v4.bin",
- .reg = &btmrvl_reg_8997,
+ .reg = &btmrvl_reg_89xx,
.support_pscan_win_report = true,
.sd_blksz_fw_dl = 256,
.supports_fw_dump = true,
diff --git a/drivers/bluetooth/btmtksdio.c b/drivers/bluetooth/btmtksdio.c
index c7ab7a23bd67..ba45c59bd9f3 100644
--- a/drivers/bluetooth/btmtksdio.c
+++ b/drivers/bluetooth/btmtksdio.c
@@ -496,7 +496,7 @@ static void btmtksdio_interrupt(struct sdio_func *func)
sdio_claim_host(bdev->func);
/* Disable interrupt */
- sdio_writel(func, C_INT_EN_CLR, MTK_REG_CHLPCR, 0);
+ sdio_writel(func, C_INT_EN_CLR, MTK_REG_CHLPCR, NULL);
int_status = sdio_readl(func, MTK_REG_CHISR, NULL);
@@ -530,7 +530,7 @@ static void btmtksdio_interrupt(struct sdio_func *func)
}
/* Enable interrupt */
- sdio_writel(func, C_INT_EN_SET, MTK_REG_CHLPCR, 0);
+ sdio_writel(func, C_INT_EN_SET, MTK_REG_CHLPCR, NULL);
pm_runtime_mark_last_busy(bdev->dev);
pm_runtime_put_autosuspend(bdev->dev);
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index 8d2608ddfd08..1005b6e8ff74 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -59,6 +59,7 @@ static struct usb_driver btusb_driver;
#define BTUSB_MEDIATEK 0x200000
#define BTUSB_WIDEBAND_SPEECH 0x400000
#define BTUSB_VALID_LE_STATES 0x800000
+#define BTUSB_QCA_WCN6855 0x1000000
static const struct usb_device_id btusb_table[] = {
/* Generic Bluetooth USB device */
@@ -254,24 +255,46 @@ static const struct usb_device_id blacklist_table[] = {
{ USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
/* QCA ROME chipset */
- { USB_DEVICE(0x0cf3, 0x535b), .driver_info = BTUSB_QCA_ROME },
- { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME },
- { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME },
- { USB_DEVICE(0x0cf3, 0xe010), .driver_info = BTUSB_QCA_ROME },
- { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME },
- { USB_DEVICE(0x0cf3, 0xe301), .driver_info = BTUSB_QCA_ROME },
- { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME },
- { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME },
- { USB_DEVICE(0x0489, 0xe09f), .driver_info = BTUSB_QCA_ROME },
- { USB_DEVICE(0x0489, 0xe0a2), .driver_info = BTUSB_QCA_ROME },
- { USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME },
- { USB_DEVICE(0x04ca, 0x3015), .driver_info = BTUSB_QCA_ROME },
- { USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME },
- { USB_DEVICE(0x04ca, 0x301a), .driver_info = BTUSB_QCA_ROME },
- { USB_DEVICE(0x04ca, 0x3021), .driver_info = BTUSB_QCA_ROME },
- { USB_DEVICE(0x13d3, 0x3491), .driver_info = BTUSB_QCA_ROME },
- { USB_DEVICE(0x13d3, 0x3496), .driver_info = BTUSB_QCA_ROME },
- { USB_DEVICE(0x13d3, 0x3501), .driver_info = BTUSB_QCA_ROME },
+ { USB_DEVICE(0x0cf3, 0x535b), .driver_info = BTUSB_QCA_ROME |
+ BTUSB_WIDEBAND_SPEECH },
+ { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME |
+ BTUSB_WIDEBAND_SPEECH },
+ { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME |
+ BTUSB_WIDEBAND_SPEECH },
+ { USB_DEVICE(0x0cf3, 0xe010), .driver_info = BTUSB_QCA_ROME |
+ BTUSB_WIDEBAND_SPEECH },
+ { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME |
+ BTUSB_WIDEBAND_SPEECH },
+ { USB_DEVICE(0x0cf3, 0xe301), .driver_info = BTUSB_QCA_ROME |
+ BTUSB_WIDEBAND_SPEECH },
+ { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME |
+ BTUSB_WIDEBAND_SPEECH },
+ { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME |
+ BTUSB_WIDEBAND_SPEECH },
+ { USB_DEVICE(0x0489, 0xe09f), .driver_info = BTUSB_QCA_ROME |
+ BTUSB_WIDEBAND_SPEECH },
+ { USB_DEVICE(0x0489, 0xe0a2), .driver_info = BTUSB_QCA_ROME |
+ BTUSB_WIDEBAND_SPEECH },
+ { USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME |
+ BTUSB_WIDEBAND_SPEECH },
+ { USB_DEVICE(0x04ca, 0x3015), .driver_info = BTUSB_QCA_ROME |
+ BTUSB_WIDEBAND_SPEECH },
+ { USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME |
+ BTUSB_WIDEBAND_SPEECH },
+ { USB_DEVICE(0x04ca, 0x301a), .driver_info = BTUSB_QCA_ROME |
+ BTUSB_WIDEBAND_SPEECH },
+ { USB_DEVICE(0x04ca, 0x3021), .driver_info = BTUSB_QCA_ROME |
+ BTUSB_WIDEBAND_SPEECH },
+ { USB_DEVICE(0x13d3, 0x3491), .driver_info = BTUSB_QCA_ROME |
+ BTUSB_WIDEBAND_SPEECH },
+ { USB_DEVICE(0x13d3, 0x3496), .driver_info = BTUSB_QCA_ROME |
+ BTUSB_WIDEBAND_SPEECH },
+ { USB_DEVICE(0x13d3, 0x3501), .driver_info = BTUSB_QCA_ROME |
+ BTUSB_WIDEBAND_SPEECH },
+
+ /* QCA WCN6855 chipset */
+ { USB_DEVICE(0x0cf3, 0xe600), .driver_info = BTUSB_QCA_WCN6855 |
+ BTUSB_WIDEBAND_SPEECH },
/* Broadcom BCM2035 */
{ USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
@@ -2338,10 +2361,10 @@ static bool btusb_setup_intel_new_get_fw_name(struct intel_version *ver,
static int btusb_intel_download_firmware(struct hci_dev *hdev,
struct intel_version *ver,
- struct intel_boot_params *params)
+ struct intel_boot_params *params,
+ u32 *boot_param)
{
const struct firmware *fw;
- u32 boot_param;
char fwname[64];
int err;
struct btusb_data *data = hci_get_drvdata(hdev);
@@ -2479,7 +2502,7 @@ static int btusb_intel_download_firmware(struct hci_dev *hdev,
set_bit(BTUSB_DOWNLOADING, &data->flags);
/* Start firmware downloading and get boot parameter */
- err = btintel_download_firmware(hdev, fw, &boot_param);
+ err = btintel_download_firmware(hdev, fw, boot_param);
if (err < 0) {
/* When FW download fails, send Intel Reset to retry
* FW download.
@@ -2561,7 +2584,7 @@ static int btusb_setup_intel_new(struct hci_dev *hdev)
return err;
}
- err = btusb_intel_download_firmware(hdev, &ver, &params);
+ err = btusb_intel_download_firmware(hdev, &ver, &params, &boot_param);
if (err)
return err;
@@ -2896,6 +2919,7 @@ static int btusb_mtk_submit_wmt_recv_urb(struct hci_dev *hdev)
buf = kmalloc(size, GFP_KERNEL);
if (!buf) {
kfree(dr);
+ usb_free_urb(urb);
return -ENOMEM;
}
@@ -3390,6 +3414,27 @@ static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
return 0;
}
+static int btusb_set_bdaddr_wcn6855(struct hci_dev *hdev,
+ const bdaddr_t *bdaddr)
+{
+ struct sk_buff *skb;
+ u8 buf[6];
+ long ret;
+
+ memcpy(buf, bdaddr, sizeof(bdaddr_t));
+
+ skb = __hci_cmd_sync_ev(hdev, 0xfc14, sizeof(buf), buf,
+ HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT);
+ if (IS_ERR(skb)) {
+ ret = PTR_ERR(skb);
+ bt_dev_err(hdev, "Change address command failed (%ld)", ret);
+ return ret;
+ }
+ kfree_skb(skb);
+
+ return 0;
+}
+
#define QCA_DFU_PACKET_LEN 4096
#define QCA_GET_TARGET_VERSION 0x09
@@ -3409,7 +3454,8 @@ struct qca_version {
} __packed;
struct qca_rampatch_version {
- __le16 rom_version;
+ __le16 rom_version_high;
+ __le16 rom_version_low;
__le16 patch_version;
} __packed;
@@ -3421,12 +3467,14 @@ struct qca_device_info {
};
static const struct qca_device_info qca_devices_table[] = {
- { 0x00000100, 20, 4, 10 }, /* Rome 1.0 */
- { 0x00000101, 20, 4, 10 }, /* Rome 1.1 */
- { 0x00000200, 28, 4, 18 }, /* Rome 2.0 */
- { 0x00000201, 28, 4, 18 }, /* Rome 2.1 */
- { 0x00000300, 28, 4, 18 }, /* Rome 3.0 */
- { 0x00000302, 28, 4, 18 }, /* Rome 3.2 */
+ { 0x00000100, 20, 4, 8 }, /* Rome 1.0 */
+ { 0x00000101, 20, 4, 8 }, /* Rome 1.1 */
+ { 0x00000200, 28, 4, 16 }, /* Rome 2.0 */
+ { 0x00000201, 28, 4, 16 }, /* Rome 2.1 */
+ { 0x00000300, 28, 4, 16 }, /* Rome 3.0 */
+ { 0x00000302, 28, 4, 16 }, /* Rome 3.2 */
+ { 0x00130100, 40, 4, 16 }, /* WCN6855 1.0 */
+ { 0x00130200, 40, 4, 16 }, /* WCN6855 2.0 */
};
static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request,
@@ -3528,8 +3576,8 @@ static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
{
struct qca_rampatch_version *rver;
const struct firmware *fw;
- u32 ver_rom, ver_patch;
- u16 rver_rom, rver_patch;
+ u32 ver_rom, ver_patch, rver_rom;
+ u16 rver_rom_low, rver_rom_high, rver_patch;
char fwname[64];
int err;
@@ -3548,9 +3596,16 @@ static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
bt_dev_info(hdev, "using rampatch file: %s", fwname);
rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
- rver_rom = le16_to_cpu(rver->rom_version);
+ rver_rom_low = le16_to_cpu(rver->rom_version_low);
rver_patch = le16_to_cpu(rver->patch_version);
+ if (ver_rom & ~0xffffU) {
+ rver_rom_high = le16_to_cpu(rver->rom_version_high);
+ rver_rom = le32_to_cpu(rver_rom_high << 16 | rver_rom_low);
+ } else {
+ rver_rom = rver_rom_low;
+ }
+
bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, "
"firmware rome 0x%x build 0x%x",
rver_rom, rver_patch, ver_rom, ver_patch);
@@ -3624,9 +3679,6 @@ static int btusb_setup_qca(struct hci_dev *hdev)
return err;
ver_rom = le32_to_cpu(ver.rom_version);
- /* Don't care about high ROM versions */
- if (ver_rom & ~0xffffU)
- return 0;
for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
if (ver_rom == qca_devices_table[i].rom_version)
@@ -4062,6 +4114,13 @@ static int btusb_probe(struct usb_interface *intf,
btusb_check_needs_reset_resume(intf);
}
+ if (id->driver_info & BTUSB_QCA_WCN6855) {
+ data->setup_on_usb = btusb_setup_qca;
+ hdev->set_bdaddr = btusb_set_bdaddr_wcn6855;
+ hdev->cmd_timeout = btusb_qca_cmd_timeout;
+ set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
+ }
+
if (id->driver_info & BTUSB_AMP) {
/* AMP controllers do not support SCO packets */
data->isoc = NULL;
diff --git a/drivers/bluetooth/hci_h5.c b/drivers/bluetooth/hci_h5.c
index e41854e0d79a..981d96cc7695 100644
--- a/drivers/bluetooth/hci_h5.c
+++ b/drivers/bluetooth/hci_h5.c
@@ -793,8 +793,6 @@ static int h5_serdev_probe(struct serdev_device *serdev)
if (!h5)
return -ENOMEM;
- set_bit(HCI_UART_RESET_ON_INIT, &h5->serdev_hu.hdev_flags);
-
h5->hu = &h5->serdev_hu;
h5->serdev_hu.serdev = serdev;
serdev_device_set_drvdata(serdev, h5);
diff --git a/drivers/bluetooth/hci_intel.c b/drivers/bluetooth/hci_intel.c
index f1299da6eed8..b20a40fab83e 100644
--- a/drivers/bluetooth/hci_intel.c
+++ b/drivers/bluetooth/hci_intel.c
@@ -288,7 +288,7 @@ static irqreturn_t intel_irq(int irq, void *dev_id)
static int intel_set_power(struct hci_uart *hu, bool powered)
{
- struct list_head *p;
+ struct intel_device *idev;
int err = -ENODEV;
if (!hu->tty->dev)
@@ -296,10 +296,7 @@ static int intel_set_power(struct hci_uart *hu, bool powered)
mutex_lock(&intel_device_list_lock);
- list_for_each(p, &intel_device_list) {
- struct intel_device *idev = list_entry(p, struct intel_device,
- list);
-
+ list_for_each_entry(idev, &intel_device_list, list) {
/* tty device and pdev device should share the same parent
* which is the UART port.
*/
@@ -362,19 +359,16 @@ static int intel_set_power(struct hci_uart *hu, bool powered)
static void intel_busy_work(struct work_struct *work)
{
- struct list_head *p;
struct intel_data *intel = container_of(work, struct intel_data,
busy_work);
+ struct intel_device *idev;
if (!intel->hu->tty->dev)
return;
/* Link is busy, delay the suspend */
mutex_lock(&intel_device_list_lock);
- list_for_each(p, &intel_device_list) {
- struct intel_device *idev = list_entry(p, struct intel_device,
- list);
-
+ list_for_each_entry(idev, &intel_device_list, list) {
if (intel->hu->tty->dev->parent == idev->pdev->dev.parent) {
pm_runtime_get(&idev->pdev->dev);
pm_runtime_mark_last_busy(&idev->pdev->dev);
@@ -533,7 +527,7 @@ static int intel_setup(struct hci_uart *hu)
struct sk_buff *skb;
struct intel_version ver;
struct intel_boot_params params;
- struct list_head *p;
+ struct intel_device *idev;
const struct firmware *fw;
char fwname[64];
u32 boot_param;
@@ -693,14 +687,11 @@ static int intel_setup(struct hci_uart *hu)
case 0x0b: /* SfP */
case 0x0c: /* WsP */
snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u.sfi",
- le16_to_cpu(ver.hw_variant),
- le16_to_cpu(params.dev_revid));
+ ver.hw_variant, le16_to_cpu(params.dev_revid));
break;
case 0x12: /* ThP */
snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u-%u.sfi",
- le16_to_cpu(ver.hw_variant),
- le16_to_cpu(ver.hw_revision),
- le16_to_cpu(ver.fw_revision));
+ ver.hw_variant, ver.hw_revision, ver.fw_revision);
break;
default:
bt_dev_err(hdev, "Unsupported Intel hardware variant (%u)",
@@ -722,14 +713,11 @@ static int intel_setup(struct hci_uart *hu)
case 0x0b: /* SfP */
case 0x0c: /* WsP */
snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u.ddc",
- le16_to_cpu(ver.hw_variant),
- le16_to_cpu(params.dev_revid));
+ ver.hw_variant, le16_to_cpu(params.dev_revid));
break;
case 0x12: /* ThP */
snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u-%u.ddc",
- le16_to_cpu(ver.hw_variant),
- le16_to_cpu(ver.hw_revision),
- le16_to_cpu(ver.fw_revision));
+ ver.hw_variant, ver.hw_revision, ver.fw_revision);
break;
default:
bt_dev_err(hdev, "Unsupported Intel hardware variant (%u)",
@@ -839,13 +827,11 @@ done:
* until further LPM TX notification.
*/
mutex_lock(&intel_device_list_lock);
- list_for_each(p, &intel_device_list) {
- struct intel_device *dev = list_entry(p, struct intel_device,
- list);
+ list_for_each_entry(idev, &intel_device_list, list) {
if (!hu->tty->dev)
break;
- if (hu->tty->dev->parent == dev->pdev->dev.parent) {
- if (device_may_wakeup(&dev->pdev->dev)) {
+ if (hu->tty->dev->parent == idev->pdev->dev.parent) {
+ if (device_may_wakeup(&idev->pdev->dev)) {
set_bit(STATE_LPM_ENABLED, &intel->flags);
set_bit(STATE_TX_ACTIVE, &intel->flags);
}
@@ -999,7 +985,7 @@ static int intel_recv(struct hci_uart *hu, const void *data, int count)
static int intel_enqueue(struct hci_uart *hu, struct sk_buff *skb)
{
struct intel_data *intel = hu->priv;
- struct list_head *p;
+ struct intel_device *idev;
BT_DBG("hu %p skb %p", hu, skb);
@@ -1010,10 +996,7 @@ static int intel_enqueue(struct hci_uart *hu, struct sk_buff *skb)
* completed before enqueuing any packet.
*/
mutex_lock(&intel_device_list_lock);
- list_for_each(p, &intel_device_list) {
- struct intel_device *idev = list_entry(p, struct intel_device,
- list);
-
+ list_for_each_entry(idev, &intel_device_list, list) {
if (hu->tty->dev->parent == idev->pdev->dev.parent) {
pm_runtime_get_sync(&idev->pdev->dev);
pm_runtime_mark_last_busy(&idev->pdev->dev);
@@ -1076,7 +1059,8 @@ static const struct hci_uart_proto intel_proto = {
#ifdef CONFIG_ACPI
static const struct acpi_device_id intel_acpi_match[] = {
{ "INT33E1", 0 },
- { },
+ { "INT33E3", 0 },
+ { }
};
MODULE_DEVICE_TABLE(acpi, intel_acpi_match);
#endif
@@ -1138,9 +1122,9 @@ static const struct acpi_gpio_params reset_gpios = { 0, 0, false };
static const struct acpi_gpio_params host_wake_gpios = { 1, 0, false };
static const struct acpi_gpio_mapping acpi_hci_intel_gpios[] = {
- { "reset-gpios", &reset_gpios, 1 },
- { "host-wake-gpios", &host_wake_gpios, 1 },
- { },
+ { "reset-gpios", &reset_gpios, 1, ACPI_GPIO_QUIRK_ONLY_GPIOIO },
+ { "host-wake-gpios", &host_wake_gpios, 1, ACPI_GPIO_QUIRK_ONLY_GPIOIO },
+ { }
};
static int intel_probe(struct platform_device *pdev)
diff --git a/drivers/bluetooth/hci_ldisc.c b/drivers/bluetooth/hci_ldisc.c
index 85a30fb9177b..f83d67eafc9f 100644
--- a/drivers/bluetooth/hci_ldisc.c
+++ b/drivers/bluetooth/hci_ldisc.c
@@ -538,6 +538,7 @@ static void hci_uart_tty_close(struct tty_struct *tty)
clear_bit(HCI_UART_PROTO_READY, &hu->flags);
percpu_up_write(&hu->proto_lock);
+ cancel_work_sync(&hu->init_ready);
cancel_work_sync(&hu->write_work);
if (hdev) {
diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
index 20e1dedbc58c..244b8feba523 100644
--- a/drivers/bluetooth/hci_qca.c
+++ b/drivers/bluetooth/hci_qca.c
@@ -693,8 +693,6 @@ static int qca_close(struct hci_uart *hu)
destroy_workqueue(qca->workqueue);
qca->hu = NULL;
- qca_power_shutdown(hu);
-
kfree_skb(qca->rx_skb);
hu->priv = NULL;
@@ -2007,8 +2005,7 @@ static int qca_serdev_probe(struct serdev_device *serdev)
err = hci_uart_register_device(&qcadev->serdev_hu, &qca_proto);
if (err) {
BT_ERR("Rome serdev registration failed");
- if (qcadev->susclk)
- clk_disable_unprepare(qcadev->susclk);
+ clk_disable_unprepare(qcadev->susclk);
return err;
}
}
@@ -2032,8 +2029,9 @@ static int qca_serdev_probe(struct serdev_device *serdev)
static void qca_serdev_remove(struct serdev_device *serdev)
{
struct qca_serdev *qcadev = serdev_device_get_drvdata(serdev);
+ struct qca_power *power = qcadev->bt_power;
- if (qca_is_wcn399x(qcadev->btsoc_type))
+ if (qca_is_wcn399x(qcadev->btsoc_type) && power->vregs_on)
qca_power_shutdown(&qcadev->serdev_hu);
else if (qcadev->susclk)
clk_disable_unprepare(qcadev->susclk);
diff --git a/drivers/bluetooth/hci_serdev.c b/drivers/bluetooth/hci_serdev.c
index 7b233312e723..ef96ad06fa54 100644
--- a/drivers/bluetooth/hci_serdev.c
+++ b/drivers/bluetooth/hci_serdev.c
@@ -113,8 +113,22 @@ static int hci_uart_flush(struct hci_dev *hdev)
/* Initialize device */
static int hci_uart_open(struct hci_dev *hdev)
{
+ struct hci_uart *hu = hci_get_drvdata(hdev);
+ int err;
+
BT_DBG("%s %p", hdev->name, hdev);
+ /* When Quirk HCI_QUIRK_NON_PERSISTENT_SETUP is set by
+ * driver, BT SoC is completely turned OFF during
+ * BT OFF. Upon next BT ON UART port should be opened.
+ */
+ if (!test_bit(HCI_UART_PROTO_READY, &hu->flags)) {
+ err = serdev_device_open(hu->serdev);
+ if (err)
+ return err;
+ set_bit(HCI_UART_PROTO_READY, &hu->flags);
+ }
+
/* Undo clearing this from hci_uart_close() */
hdev->flush = hci_uart_flush;
@@ -124,11 +138,25 @@ static int hci_uart_open(struct hci_dev *hdev)
/* Close device */
static int hci_uart_close(struct hci_dev *hdev)
{
+ struct hci_uart *hu = hci_get_drvdata(hdev);
+
BT_DBG("hdev %p", hdev);
+ if (!test_bit(HCI_UART_PROTO_READY, &hu->flags))
+ return 0;
+
hci_uart_flush(hdev);
hdev->flush = NULL;
+ /* When QUIRK HCI_QUIRK_NON_PERSISTENT_SETUP is set by driver,
+ * BT SOC is completely powered OFF during BT OFF, holding port
+ * open may drain the battery.
+ */
+ if (test_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks)) {
+ clear_bit(HCI_UART_PROTO_READY, &hu->flags);
+ serdev_device_close(hu->serdev);
+ }
+
return 0;
}
@@ -354,7 +382,7 @@ void hci_uart_unregister_device(struct hci_uart *hu)
{
struct hci_dev *hdev = hu->hdev;
- clear_bit(HCI_UART_PROTO_READY, &hu->flags);
+ cancel_work_sync(&hu->init_ready);
if (test_bit(HCI_UART_REGISTERED, &hu->flags))
hci_unregister_dev(hdev);
hci_free_dev(hdev);
@@ -362,6 +390,10 @@ void hci_uart_unregister_device(struct hci_uart *hu)
cancel_work_sync(&hu->write_work);
hu->proto->close(hu);
- serdev_device_close(hu->serdev);
+
+ if (test_bit(HCI_UART_PROTO_READY, &hu->flags)) {
+ clear_bit(HCI_UART_PROTO_READY, &hu->flags);
+ serdev_device_close(hu->serdev);
+ }
}
EXPORT_SYMBOL_GPL(hci_uart_unregister_device);