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Bluetooth: btmtk: Add reset mechanism if downloading firmware failed

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Add a new flag 'BTMTK_FIRMWARE_DL_RETRY'.
If an error occurs during mt79xx firmware download process, this flag
will be set and cleared after a reset. If the flag is already set and
firmware still cannot be loaded successfully after a reset, no further
reset attempts will be made. In other words, if there is a problem during
firmware download, only one reset will be attempted.

Signed-off-by: Chris Lu <chris.lu@mediatek.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
This commit is contained in:
Chris Lu
2026-02-03 14:25:10 +08:00
committed by Luiz Augusto von Dentz
parent b27a306e9f
commit 679621a767
2 changed files with 7 additions and 0 deletions
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6
drivers/bluetooth/btmtk.c
View File

@@ -1344,6 +1344,9 @@ int btmtk_usb_setup(struct hci_dev *hdev)
err = btmtk_setup_firmware_79xx(hdev, fw_bin_name,
btmtk_usb_hci_wmt_sync);
if (err < 0) {
/* retry once if setup firmware error */
if (!test_and_set_bit(BTMTK_FIRMWARE_DL_RETRY, &btmtk_data->flags))
btmtk_reset_sync(hdev);
bt_dev_err(hdev, "Failed to set up firmware (%d)", err);
return err;
}
@@ -1371,6 +1374,9 @@ int btmtk_usb_setup(struct hci_dev *hdev)
hci_set_msft_opcode(hdev, 0xFD30);
hci_set_aosp_capable(hdev);
/* Clear BTMTK_FIRMWARE_DL_RETRY if setup successfully */
test_and_clear_bit(BTMTK_FIRMWARE_DL_RETRY, &btmtk_data->flags);
/* Set up ISO interface after protocol enabled */
if (test_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags)) {
if (!btmtk_usb_isointf_init(hdev))

1
drivers/bluetooth/btmtk.h
View File

@@ -147,6 +147,7 @@ enum {
BTMTK_HW_RESET_ACTIVE,
BTMTK_ISOPKT_OVER_INTR,
BTMTK_ISOPKT_RUNNING,
BTMTK_FIRMWARE_DL_RETRY,
};
typedef int (*btmtk_reset_sync_func_t)(struct hci_dev *, void *);