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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.c113
1 files changed, 94 insertions, 19 deletions
diff --git a/drivers/bluetooth/btintel.c b/drivers/bluetooth/btintel.c
index 438b92967bc3..d496cf2c3411 100644
--- a/drivers/bluetooth/btintel.c
+++ b/drivers/bluetooth/btintel.c
@@ -1040,7 +1040,7 @@ static int btintel_download_firmware_payload(struct hci_dev *hdev,
* as needed.
*
* Send set of commands with 4 byte alignment from the
- * firmware data buffer as a single Data fragement.
+ * firmware data buffer as a single Data fragment.
*/
if (!(frag_len % 4)) {
err = btintel_secure_send(hdev, 0x01, frag_len, fw_ptr);
@@ -1252,6 +1252,12 @@ static void btintel_reset_to_bootloader(struct hci_dev *hdev)
struct intel_reset params;
struct sk_buff *skb;
+ /* PCIe transport uses shared hardware reset mechanism for recovery
+ * which gets triggered in pcie *setup* function on error.
+ */
+ if (hdev->bus == HCI_PCI)
+ return;
+
/* Send Intel Reset command. This will result in
* re-enumeration of BT controller.
*
@@ -1267,6 +1273,7 @@ static void btintel_reset_to_bootloader(struct hci_dev *hdev)
* boot_param: Boot address
*
*/
+
params.reset_type = 0x01;
params.patch_enable = 0x01;
params.ddc_reload = 0x01;
@@ -1841,6 +1848,37 @@ static int btintel_boot_wait(struct hci_dev *hdev, ktime_t calltime, int msec)
return 0;
}
+static int btintel_boot_wait_d0(struct hci_dev *hdev, ktime_t calltime,
+ int msec)
+{
+ ktime_t delta, rettime;
+ unsigned long long duration;
+ int err;
+
+ bt_dev_info(hdev, "Waiting for device transition to d0");
+
+ err = btintel_wait_on_flag_timeout(hdev, INTEL_WAIT_FOR_D0,
+ TASK_INTERRUPTIBLE,
+ msecs_to_jiffies(msec));
+ if (err == -EINTR) {
+ bt_dev_err(hdev, "Device d0 move interrupted");
+ return -EINTR;
+ }
+
+ if (err) {
+ bt_dev_err(hdev, "Device d0 move timeout");
+ return -ETIMEDOUT;
+ }
+
+ rettime = ktime_get();
+ delta = ktime_sub(rettime, calltime);
+ duration = (unsigned long long)ktime_to_ns(delta) >> 10;
+
+ bt_dev_info(hdev, "Device moved to D0 in %llu usecs", duration);
+
+ return 0;
+}
+
static int btintel_boot(struct hci_dev *hdev, u32 boot_addr)
{
ktime_t calltime;
@@ -1849,6 +1887,7 @@ static int btintel_boot(struct hci_dev *hdev, u32 boot_addr)
calltime = ktime_get();
btintel_set_flag(hdev, INTEL_BOOTING);
+ btintel_set_flag(hdev, INTEL_WAIT_FOR_D0);
err = btintel_send_intel_reset(hdev, boot_addr);
if (err) {
@@ -1861,13 +1900,28 @@ static int btintel_boot(struct hci_dev *hdev, u32 boot_addr)
* is done by the operational firmware sending bootup notification.
*
* Booting into operational firmware should not take longer than
- * 1 second. However if that happens, then just fail the setup
+ * 5 second. However if that happens, then just fail the setup
* since something went wrong.
*/
- err = btintel_boot_wait(hdev, calltime, 1000);
- if (err == -ETIMEDOUT)
+ err = btintel_boot_wait(hdev, calltime, 5000);
+ if (err == -ETIMEDOUT) {
btintel_reset_to_bootloader(hdev);
+ goto exit_error;
+ }
+
+ if (hdev->bus == HCI_PCI) {
+ /* In case of PCIe, after receiving bootup event, driver performs
+ * D0 entry by writing 0 to sleep control register (check
+ * btintel_pcie_recv_event())
+ * Firmware acks with alive interrupt indicating host is full ready to
+ * perform BT operation. Lets wait here till INTEL_WAIT_FOR_D0
+ * bit is cleared.
+ */
+ calltime = ktime_get();
+ err = btintel_boot_wait_d0(hdev, calltime, 2000);
+ }
+exit_error:
return err;
}
@@ -2693,20 +2747,32 @@ static int btintel_set_dsbr(struct hci_dev *hdev, struct intel_version_tlv *ver)
struct btintel_dsbr_cmd cmd;
struct sk_buff *skb;
+ u32 dsbr, cnvi;
u8 status;
- u32 dsbr;
- bool apply_dsbr;
int err;
- /* DSBR command needs to be sent for BlazarI + B0 step product after
- * downloading IML image.
+ cnvi = ver->cnvi_top & 0xfff;
+ /* DSBR command needs to be sent for,
+ * 1. BlazarI or BlazarIW + B0 step product in IML image.
+ * 2. Gale Peak2 or BlazarU in OP image.
*/
- apply_dsbr = (ver->img_type == BTINTEL_IMG_IML &&
- ((ver->cnvi_top & 0xfff) == BTINTEL_CNVI_BLAZARI) &&
- INTEL_CNVX_TOP_STEP(ver->cnvi_top) == 0x01);
- if (!apply_dsbr)
+ switch (cnvi) {
+ case BTINTEL_CNVI_BLAZARI:
+ case BTINTEL_CNVI_BLAZARIW:
+ if (ver->img_type == BTINTEL_IMG_IML &&
+ INTEL_CNVX_TOP_STEP(ver->cnvi_top) == 0x01)
+ break;
return 0;
+ case BTINTEL_CNVI_GAP:
+ case BTINTEL_CNVI_BLAZARU:
+ if (ver->img_type == BTINTEL_IMG_OP &&
+ hdev->bus == HCI_USB)
+ break;
+ return 0;
+ default:
+ return 0;
+ }
dsbr = 0;
err = btintel_uefi_get_dsbr(&dsbr);
@@ -2749,6 +2815,13 @@ int btintel_bootloader_setup_tlv(struct hci_dev *hdev,
*/
boot_param = 0x00000000;
+ /* In case of PCIe, this function might get called multiple times with
+ * same hdev instance if there is any error on firmware download.
+ * Need to clear stale bits of previous firmware download attempt.
+ */
+ for (int i = 0; i < __INTEL_NUM_FLAGS; i++)
+ btintel_clear_flag(hdev, i);
+
btintel_set_flag(hdev, INTEL_BOOTLOADER);
err = btintel_prepare_fw_download_tlv(hdev, ver, &boot_param);
@@ -2835,7 +2908,7 @@ void btintel_set_msft_opcode(struct hci_dev *hdev, u8 hw_variant)
case 0x12: /* ThP */
case 0x13: /* HrP */
case 0x14: /* CcP */
- /* All Intel new genration controllers support the Microsoft vendor
+ /* All Intel new generation controllers support the Microsoft vendor
* extension are using 0xFC1E for VsMsftOpCode.
*/
case 0x17:
@@ -3273,7 +3346,7 @@ int btintel_configure_setup(struct hci_dev *hdev, const char *driver_name)
}
EXPORT_SYMBOL_GPL(btintel_configure_setup);
-static int btintel_diagnostics(struct hci_dev *hdev, struct sk_buff *skb)
+int btintel_diagnostics(struct hci_dev *hdev, struct sk_buff *skb)
{
struct intel_tlv *tlv = (void *)&skb->data[5];
@@ -3288,13 +3361,12 @@ static int btintel_diagnostics(struct hci_dev *hdev, struct sk_buff *skb)
case INTEL_TLV_TEST_EXCEPTION:
/* Generate devcoredump from exception */
if (!hci_devcd_init(hdev, skb->len)) {
- hci_devcd_append(hdev, skb);
+ hci_devcd_append(hdev, skb_clone(skb, GFP_ATOMIC));
hci_devcd_complete(hdev);
} else {
bt_dev_err(hdev, "Failed to generate devcoredump");
- kfree_skb(skb);
}
- return 0;
+ break;
default:
bt_dev_err(hdev, "Invalid exception type %02X", tlv->val[0]);
}
@@ -3302,6 +3374,7 @@ static int btintel_diagnostics(struct hci_dev *hdev, struct sk_buff *skb)
recv_frame:
return hci_recv_frame(hdev, skb);
}
+EXPORT_SYMBOL_GPL(btintel_diagnostics);
int btintel_recv_event(struct hci_dev *hdev, struct sk_buff *skb)
{
@@ -3321,7 +3394,8 @@ int btintel_recv_event(struct hci_dev *hdev, struct sk_buff *skb)
* indicating that the bootup completed.
*/
btintel_bootup(hdev, ptr, len);
- break;
+ kfree_skb(skb);
+ return 0;
case 0x06:
/* When the firmware loading completes the
* device sends out a vendor specific event
@@ -3329,7 +3403,8 @@ int btintel_recv_event(struct hci_dev *hdev, struct sk_buff *skb)
* loading.
*/
btintel_secure_send_result(hdev, ptr, len);
- break;
+ kfree_skb(skb);
+ return 0;
}
}
generated by cgit (git 2.34.1) at 2025-05-29 22:11:10 +0000