Android Bluetooth hciReason（HCI_ / HCI_ERR_)定義

petercao發表於2024-05-31
Android

https://android.googlesource.com/platform/packages/apps/Bluetooth/+/master/src/com/android/bluetooth/btservice/AdapterService.java

    /**
     * Converts HCI disconnect reasons to Android disconnect reasons.
     * <p>
     * The HCI Error Codes used for ACL disconnect reasons propagated up from native code were
     * copied from: {@link system/bt/stack/include/hci_error_code.h}.
     * <p>
     * These error codes are specified and described in Bluetooth Core Spec v5.1, Vol 2, Part D.
     *
     * @param hciReason is the raw HCI disconnect reason from native.
     * @return the Android disconnect reason for apps.
     */
    static @BluetoothAdapter.BluetoothConnectionCallback.DisconnectReason int
            hciToAndroidDisconnectReason(int hciReason) {
        switch(hciReason) {
            case /*HCI_SUCCESS*/ 0x00:
            case /*HCI_ERR_UNSPECIFIED*/ 0x1F:
            case /*HCI_ERR_UNDEFINED*/ 0xff:
                return BluetoothStatusCodes.ERROR_UNKNOWN;
            case /*HCI_ERR_ILLEGAL_COMMAND*/ 0x01:
            case /*HCI_ERR_NO_CONNECTION*/ 0x02:
            case /*HCI_ERR_HW_FAILURE*/ 0x03:
            case /*HCI_ERR_DIFF_TRANSACTION_COLLISION*/ 0x2A:
            case /*HCI_ERR_ROLE_SWITCH_PENDING*/ 0x32:
            case /*HCI_ERR_ROLE_SWITCH_FAILED*/ 0x35:
                return BluetoothStatusCodes.ERROR_DISCONNECT_REASON_LOCAL;
            case /*HCI_ERR_PAGE_TIMEOUT*/ 0x04:
            case /*HCI_ERR_CONNECTION_TOUT*/ 0x08:
            case /*HCI_ERR_HOST_TIMEOUT*/ 0x10:
            case /*HCI_ERR_LMP_RESPONSE_TIMEOUT*/ 0x22:
            case /*HCI_ERR_ADVERTISING_TIMEOUT*/ 0x3C:
            case /*HCI_ERR_CONN_FAILED_ESTABLISHMENT*/ 0x3E:
                return BluetoothStatusCodes.ERROR_DISCONNECT_REASON_TIMEOUT;
            case /*HCI_ERR_AUTH_FAILURE*/ 0x05:
            case /*HCI_ERR_KEY_MISSING*/ 0x06:
            case /*HCI_ERR_HOST_REJECT_SECURITY*/ 0x0E:
            case /*HCI_ERR_REPEATED_ATTEMPTS*/ 0x17:
            case /*HCI_ERR_PAIRING_NOT_ALLOWED*/ 0x18:
            case /*HCI_ERR_ENCRY_MODE_NOT_ACCEPTABLE*/ 0x25:
            case /*HCI_ERR_UNIT_KEY_USED*/ 0x26:
            case /*HCI_ERR_PAIRING_WITH_UNIT_KEY_NOT_SUPPORTED*/ 0x29:
            case /*HCI_ERR_INSUFFCIENT_SECURITY*/ 0x2F:
            case /*HCI_ERR_HOST_BUSY_PAIRING*/ 0x38:
                return BluetoothStatusCodes.ERROR_DISCONNECT_REASON_SECURITY;
            case /*HCI_ERR_MEMORY_FULL*/ 0x07:
            case /*HCI_ERR_MAX_NUM_OF_CONNECTIONS*/ 0x09:
            case /*HCI_ERR_MAX_NUM_OF_SCOS*/ 0x0A:
            case /*HCI_ERR_COMMAND_DISALLOWED*/ 0x0C:
            case /*HCI_ERR_HOST_REJECT_RESOURCES*/ 0x0D:
            case /*HCI_ERR_LIMIT_REACHED*/ 0x43:
                return BluetoothStatusCodes.ERROR_DISCONNECT_REASON_RESOURCE_LIMIT_REACHED;
            case /*HCI_ERR_CONNECTION_EXISTS*/ 0x0B:
                return BluetoothStatusCodes.ERROR_DISCONNECT_REASON_CONNECTION_ALREADY_EXISTS;
            case /*HCI_ERR_HOST_REJECT_DEVICE*/ 0x0F:
                return BluetoothStatusCodes.ERROR_DISCONNECT_REASON_SYSTEM_POLICY;
            case /*HCI_ERR_ILLEGAL_PARAMETER_FMT*/ 0x12:
                return BluetoothStatusCodes.ERROR_DISCONNECT_REASON_BAD_PARAMETERS;
            case /*HCI_ERR_PEER_USER*/ 0x13:
                return BluetoothStatusCodes.ERROR_DISCONNECT_REASON_REMOTE_REQUEST;
            case /*HCI_ERR_CONN_CAUSE_LOCAL_HOST*/ 0x16:
                return BluetoothStatusCodes.ERROR_DISCONNECT_REASON_LOCAL_REQUEST;
            case /*HCI_ERR_UNSUPPORTED_REM_FEATURE*/ 0x1A:
                return BluetoothStatusCodes.ERROR_DISCONNECT_REASON_REMOTE;
            case /*HCI_ERR_UNACCEPT_CONN_INTERVAL*/ 0x3B:
                return BluetoothStatusCodes.ERROR_DISCONNECT_REASON_BAD_PARAMETERS;
            default:
                Log.e(TAG, "Invalid HCI disconnect reason: " + hciReason);
                return BluetoothStatusCodes.ERROR_UNKNOWN;
        }
    }

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