diff options
Diffstat (limited to 'drivers/bluetooth/btusb.c')
-rw-r--r-- | drivers/bluetooth/btusb.c | 68 |
1 files changed, 24 insertions, 44 deletions
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index de220ab7f231..a30f7ea9be36 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -2402,11 +2402,17 @@ static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb) return -EILSEQ; } -static bool btusb_setup_intel_new_get_fw_name(struct intel_version *ver, +static int btusb_setup_intel_new_get_fw_name(struct intel_version *ver, struct intel_boot_params *params, char *fw_name, size_t len, const char *suffix) { + /* The hardware platform number has a fixed value of 0x37 and + * for now only accept this single value. + */ + if (ver->hw_platform != 0x37) + return -EINVAL; + switch (ver->hw_variant) { case 0x0b: /* SfP */ case 0x0c: /* WsP */ @@ -2426,9 +2432,10 @@ static bool btusb_setup_intel_new_get_fw_name(struct intel_version *ver, suffix); break; default: - return false; + return -EINVAL; } - return true; + + return 0; } static void btusb_setup_intel_newgen_get_fw_name(const struct intel_version_tlv *ver_tlv, @@ -2483,7 +2490,6 @@ static int btusb_intel_download_firmware_newgen(struct hci_dev *hdev, if (ver->img_type == 0x03) { clear_bit(BTUSB_BOOTLOADER, &data->flags); btintel_check_bdaddr(hdev); - return 0; } /* Check for supported iBT hardware variants of this firmware @@ -2628,35 +2634,6 @@ static int btusb_intel_download_firmware(struct hci_dev *hdev, if (!ver || !params) return -EINVAL; - /* The hardware platform number has a fixed value of 0x37 and - * for now only accept this single value. - */ - if (ver->hw_platform != 0x37) { - bt_dev_err(hdev, "Unsupported Intel hardware platform (%u)", - ver->hw_platform); - return -EINVAL; - } - - /* Check for supported iBT hardware variants of this firmware - * loading method. - * - * This check has been put in place to ensure correct forward - * compatibility options when newer hardware variants come along. - */ - switch (ver->hw_variant) { - case 0x0b: /* SfP */ - case 0x0c: /* WsP */ - case 0x11: /* JfP */ - case 0x12: /* ThP */ - case 0x13: /* HrP */ - case 0x14: /* CcP */ - break; - default: - bt_dev_err(hdev, "Unsupported Intel hardware variant (%u)", - ver->hw_variant); - return -EINVAL; - } - btintel_version_info(hdev, ver); /* The firmware variant determines if the device is in bootloader @@ -2675,16 +2652,18 @@ static int btusb_intel_download_firmware(struct hci_dev *hdev, if (ver->fw_variant == 0x23) { clear_bit(BTUSB_BOOTLOADER, &data->flags); btintel_check_bdaddr(hdev); - return 0; - } - /* If the device is not in bootloader mode, then the only possible - * choice is to return an error and abort the device initialization. - */ - if (ver->fw_variant != 0x06) { - bt_dev_err(hdev, "Unsupported Intel firmware variant (%u)", - ver->fw_variant); - return -ENODEV; + /* SfP and WsP don't seem to update the firmware version on file + * so version checking is currently possible. + */ + switch (ver->hw_variant) { + case 0x0b: /* SfP */ + case 0x0c: /* WsP */ + return 0; + } + + /* Proceed to download to check if the version matches */ + goto download; } /* Read the secure boot parameters to identify the operating @@ -2712,6 +2691,7 @@ static int btusb_intel_download_firmware(struct hci_dev *hdev, set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks); } +download: /* With this Intel bootloader only the hardware variant and device * revision information are used to select the right firmware for SfP * and WsP. @@ -2735,7 +2715,7 @@ static int btusb_intel_download_firmware(struct hci_dev *hdev, */ err = btusb_setup_intel_new_get_fw_name(ver, params, fwname, sizeof(fwname), "sfi"); - if (!err) { + if (err < 0) { bt_dev_err(hdev, "Unsupported Intel firmware naming"); return -EINVAL; } @@ -2908,7 +2888,7 @@ static int btusb_setup_intel_new(struct hci_dev *hdev) err = btusb_setup_intel_new_get_fw_name(&ver, ¶ms, ddcname, sizeof(ddcname), "ddc"); - if (!err) { + if (err < 0) { bt_dev_err(hdev, "Unsupported Intel firmware naming"); } else { /* Once the device is running in operational mode, it needs to |