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path: root/drivers/bluetooth/btintel.c
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Diffstat (limited to 'drivers/bluetooth/btintel.c')
-rw-r--r--drivers/bluetooth/btintel.c128
1 files changed, 106 insertions, 22 deletions
diff --git a/drivers/bluetooth/btintel.c b/drivers/bluetooth/btintel.c
index bede8b005594..d9349ba48281 100644
--- a/drivers/bluetooth/btintel.c
+++ b/drivers/bluetooth/btintel.c
@@ -26,7 +26,14 @@
#define ECDSA_HEADER_LEN 320
#define BTINTEL_PPAG_NAME "PPAG"
-#define BTINTEL_PPAG_PREFIX "\\_SB_.PCI0.XHCI.RHUB"
+
+/* structure to store the PPAG data read from ACPI table */
+struct btintel_ppag {
+ u32 domain;
+ u32 mode;
+ acpi_status status;
+ struct hci_dev *hdev;
+};
#define CMD_WRITE_BOOT_PARAMS 0xfc0e
struct cmd_write_boot_params {
@@ -36,6 +43,12 @@ struct cmd_write_boot_params {
u8 fw_build_yy;
} __packed;
+static struct {
+ const char *driver_name;
+ u8 hw_variant;
+ u32 fw_build_num;
+} coredump_info;
+
int btintel_check_bdaddr(struct hci_dev *hdev)
{
struct hci_rp_read_bd_addr *bda;
@@ -308,6 +321,9 @@ int btintel_version_info(struct hci_dev *hdev, struct intel_version *ver)
return -EINVAL;
}
+ coredump_info.hw_variant = ver->hw_variant;
+ coredump_info.fw_build_num = ver->fw_build_num;
+
bt_dev_info(hdev, "%s revision %u.%u build %u week %u %u",
variant, ver->fw_revision >> 4, ver->fw_revision & 0x0f,
ver->fw_build_num, ver->fw_build_ww,
@@ -502,6 +518,9 @@ static int btintel_version_info_tlv(struct hci_dev *hdev,
return -EINVAL;
}
+ coredump_info.hw_variant = INTEL_HW_VARIANT(version->cnvi_bt);
+ coredump_info.fw_build_num = version->build_num;
+
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);
@@ -1295,17 +1314,16 @@ static acpi_status btintel_ppag_callback(acpi_handle handle, u32 lvl, void *data
status = acpi_get_name(handle, ACPI_FULL_PATHNAME, &string);
if (ACPI_FAILURE(status)) {
- bt_dev_warn(hdev, "ACPI Failure: %s", acpi_format_exception(status));
+ bt_dev_warn(hdev, "PPAG-BT: ACPI Failure: %s", acpi_format_exception(status));
return status;
}
- if (strncmp(BTINTEL_PPAG_PREFIX, string.pointer,
- strlen(BTINTEL_PPAG_PREFIX))) {
+ len = strlen(string.pointer);
+ if (len < strlen(BTINTEL_PPAG_NAME)) {
kfree(string.pointer);
return AE_OK;
}
- len = strlen(string.pointer);
if (strncmp((char *)string.pointer + len - 4, BTINTEL_PPAG_NAME, 4)) {
kfree(string.pointer);
return AE_OK;
@@ -1314,7 +1332,8 @@ static acpi_status btintel_ppag_callback(acpi_handle handle, u32 lvl, void *data
status = acpi_evaluate_object(handle, NULL, NULL, &buffer);
if (ACPI_FAILURE(status)) {
- bt_dev_warn(hdev, "ACPI Failure: %s", acpi_format_exception(status));
+ ppag->status = status;
+ bt_dev_warn(hdev, "PPAG-BT: ACPI Failure: %s", acpi_format_exception(status));
return status;
}
@@ -1323,8 +1342,9 @@ static acpi_status btintel_ppag_callback(acpi_handle handle, u32 lvl, void *data
if (p->type != ACPI_TYPE_PACKAGE || p->package.count != 2) {
kfree(buffer.pointer);
- bt_dev_warn(hdev, "Invalid object type: %d or package count: %d",
+ bt_dev_warn(hdev, "PPAG-BT: Invalid object type: %d or package count: %d",
p->type, p->package.count);
+ ppag->status = AE_ERROR;
return AE_ERROR;
}
@@ -1335,6 +1355,7 @@ static acpi_status btintel_ppag_callback(acpi_handle handle, u32 lvl, void *data
ppag->domain = (u32)p->package.elements[0].integer.value;
ppag->mode = (u32)p->package.elements[1].integer.value;
+ ppag->status = AE_OK;
kfree(buffer.pointer);
return AE_CTRL_TERMINATE;
}
@@ -1453,6 +1474,59 @@ int btintel_set_quality_report(struct hci_dev *hdev, bool enable)
}
EXPORT_SYMBOL_GPL(btintel_set_quality_report);
+static void btintel_coredump(struct hci_dev *hdev)
+{
+ struct sk_buff *skb;
+
+ skb = __hci_cmd_sync(hdev, 0xfc4e, 0, NULL, HCI_CMD_TIMEOUT);
+ if (IS_ERR(skb)) {
+ bt_dev_err(hdev, "Coredump failed (%ld)", PTR_ERR(skb));
+ return;
+ }
+
+ kfree_skb(skb);
+}
+
+static void btintel_dmp_hdr(struct hci_dev *hdev, struct sk_buff *skb)
+{
+ char buf[80];
+
+ snprintf(buf, sizeof(buf), "Controller Name: 0x%X\n",
+ coredump_info.hw_variant);
+ skb_put_data(skb, buf, strlen(buf));
+
+ snprintf(buf, sizeof(buf), "Firmware Version: 0x%X\n",
+ coredump_info.fw_build_num);
+ skb_put_data(skb, buf, strlen(buf));
+
+ snprintf(buf, sizeof(buf), "Driver: %s\n", coredump_info.driver_name);
+ skb_put_data(skb, buf, strlen(buf));
+
+ snprintf(buf, sizeof(buf), "Vendor: Intel\n");
+ skb_put_data(skb, buf, strlen(buf));
+}
+
+static int btintel_register_devcoredump_support(struct hci_dev *hdev)
+{
+ struct intel_debug_features features;
+ int err;
+
+ err = btintel_read_debug_features(hdev, &features);
+ if (err) {
+ bt_dev_info(hdev, "Error reading debug features");
+ return err;
+ }
+
+ if (!(features.page1[0] & 0x3f)) {
+ bt_dev_dbg(hdev, "Telemetry exception format not supported");
+ return -EOPNOTSUPP;
+ }
+
+ hci_devcd_register(hdev, btintel_coredump, btintel_dmp_hdr, NULL);
+
+ return err;
+}
+
static const struct firmware *btintel_legacy_rom_get_fw(struct hci_dev *hdev,
struct intel_version *ver)
{
@@ -2314,12 +2388,12 @@ error:
static void btintel_set_ppag(struct hci_dev *hdev, struct intel_version_tlv *ver)
{
- acpi_status status;
struct btintel_ppag ppag;
struct sk_buff *skb;
struct btintel_loc_aware_reg ppag_cmd;
+ acpi_handle handle;
- /* PPAG is not supported if CRF is HrP2, Jfp2, JfP1 */
+ /* PPAG is not supported if CRF is HrP2, Jfp2, JfP1 */
switch (ver->cnvr_top & 0xFFF) {
case 0x504: /* Hrp2 */
case 0x202: /* Jfp2 */
@@ -2327,29 +2401,35 @@ static void btintel_set_ppag(struct hci_dev *hdev, struct intel_version_tlv *ver
return;
}
+ handle = ACPI_HANDLE(GET_HCIDEV_DEV(hdev));
+ if (!handle) {
+ bt_dev_info(hdev, "No support for BT device in ACPI firmware");
+ return;
+ }
+
memset(&ppag, 0, sizeof(ppag));
ppag.hdev = hdev;
- status = acpi_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,
- ACPI_UINT32_MAX, NULL,
- btintel_ppag_callback, &ppag, NULL);
+ ppag.status = AE_NOT_FOUND;
+ acpi_walk_namespace(ACPI_TYPE_PACKAGE, handle, 1, NULL,
+ btintel_ppag_callback, &ppag, NULL);
- if (ACPI_FAILURE(status)) {
- /* Do not log warning message if ACPI entry is not found */
- if (status == AE_NOT_FOUND)
+ if (ACPI_FAILURE(ppag.status)) {
+ if (ppag.status == AE_NOT_FOUND) {
+ bt_dev_dbg(hdev, "PPAG-BT: ACPI entry not found");
return;
- bt_dev_warn(hdev, "PPAG: ACPI Failure: %s", acpi_format_exception(status));
+ }
return;
}
if (ppag.domain != 0x12) {
- bt_dev_warn(hdev, "PPAG-BT Domain disabled");
+ bt_dev_warn(hdev, "PPAG-BT: domain is not bluetooth");
return;
}
/* PPAG mode, BIT0 = 0 Disabled, BIT0 = 1 Enabled */
if (!(ppag.mode & BIT(0))) {
- bt_dev_dbg(hdev, "PPAG disabled");
+ bt_dev_dbg(hdev, "PPAG-BT: disabled");
return;
}
@@ -2582,6 +2662,7 @@ static int btintel_setup_combined(struct hci_dev *hdev)
btintel_set_msft_opcode(hdev, ver.hw_variant);
err = btintel_bootloader_setup(hdev, &ver);
+ btintel_register_devcoredump_support(hdev);
break;
default:
bt_dev_err(hdev, "Unsupported Intel hw variant (%u)",
@@ -2655,6 +2736,7 @@ static int btintel_setup_combined(struct hci_dev *hdev)
btintel_set_msft_opcode(hdev, ver.hw_variant);
err = btintel_bootloader_setup(hdev, &ver);
+ btintel_register_devcoredump_support(hdev);
break;
case 0x17:
case 0x18:
@@ -2669,15 +2751,15 @@ static int btintel_setup_combined(struct hci_dev *hdev)
*/
set_bit(HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED, &hdev->quirks);
- /* Valid LE States quirk for GfP */
- if (INTEL_HW_VARIANT(ver_tlv.cnvi_bt) == 0x18)
- set_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks);
+ /* Apply LE States quirk from solar onwards */
+ set_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks);
/* Setup MSFT Extension support */
btintel_set_msft_opcode(hdev,
INTEL_HW_VARIANT(ver_tlv.cnvi_bt));
err = btintel_bootloader_setup_tlv(hdev, &ver_tlv);
+ btintel_register_devcoredump_support(hdev);
break;
default:
bt_dev_err(hdev, "Unsupported Intel hw variant (%u)",
@@ -2727,7 +2809,7 @@ static int btintel_shutdown_combined(struct hci_dev *hdev)
return 0;
}
-int btintel_configure_setup(struct hci_dev *hdev)
+int btintel_configure_setup(struct hci_dev *hdev, const char *driver_name)
{
hdev->manufacturer = 2;
hdev->setup = btintel_setup_combined;
@@ -2736,6 +2818,8 @@ int btintel_configure_setup(struct hci_dev *hdev)
hdev->set_diag = btintel_set_diag_combined;
hdev->set_bdaddr = btintel_set_bdaddr;
+ coredump_info.driver_name = driver_name;
+
return 0;
}
EXPORT_SYMBOL_GPL(btintel_configure_setup);
generated by cgit v1.2.3 (git 2.39.0) at 2025-01-01 22:58:29 +0300