diff options
Diffstat (limited to 'drivers/bluetooth/btintel.c')
| -rw-r--r-- | drivers/bluetooth/btintel.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/bluetooth/btintel.c b/drivers/bluetooth/btintel.c index 3ff698a0bd25..13bc93a986c7 100644 --- a/drivers/bluetooth/btintel.c +++ b/drivers/bluetooth/btintel.c @@ -958,6 +958,17 @@ int btintel_download_firmware(struct hci_dev *hdev, } } + /* The firmware variant determines if the device is in bootloader + * mode or is running operational firmware. The value 0x06 identifies + * the bootloader and the value 0x23 identifies the operational + * firmware. + * + * If the firmware version has changed that means it needs to be reset + * to bootloader when operational so the new firmware can be loaded. + */ + if (ver->fw_variant == 0x23) + return -EINVAL; + err = btintel_sfi_rsa_header_secure_send(hdev, fw); if (err) return err; @@ -985,6 +996,17 @@ int btintel_download_firmware_newgen(struct hci_dev *hdev, return -EALREADY; } + /* The firmware variant determines if the device is in bootloader + * mode or is running operational firmware. The value 0x01 identifies + * the bootloader and the value 0x03 identifies the operational + * firmware. + * + * If the firmware version has changed that means it needs to be reset + * to bootloader when operational so the new firmware can be loaded. + */ + if (ver->img_type == 0x03) + return -EINVAL; + /* 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. |