camera/device/3.5/ICameraDevice.hal

/*
 * Copyright (C) 2018 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package android.hardware.camera.device@3.5;

import android.hardware.camera.common@1.0::Status;
import @3.2::CameraMetadata;
import @3.2::ICameraDevice;

/**
 * Camera device interface
 *
 * Supports the android.hardware.Camera API, and the android.hardware.camera2
 * API at LIMITED or better hardware level.
 *
 */
interface ICameraDevice extends @3.2::ICameraDevice {

    /**
     * getPhysicalCameraCharacteristics:
     *
     * Return the static camera information for a physical camera ID backing
     * this logical camera device. This information may not change between consecutive calls.
     *
     * Note that HAL must support this function for physical camera IDs that are
     * not exposed via ICameraProvider::getCameraIdList().
     *
     * @return status Status code for the operation, one of:
     *     OK:
     *         On a successful query of the camera device characteristics
     *     INTERNAL_ERROR:
     *         The camera device cannot be opened due to an internal
     *         error.
     *     CAMERA_DISCONNECTED:
     *         An external camera device has been disconnected, and is no longer
     *         available. This camera device interface is now stale, and a new
     *         instance must be acquired if the device is reconnected. All
     *         subsequent calls on this interface must return
     *         CAMERA_DISCONNECTED.
     *
     * @return cameraCharacteristics
     *     The static metadata for this logical camera device's physical device, or an empty
     *     metadata structure if status is not OK.
     *
     */
    getPhysicalCameraCharacteristics(string physicalCameraId)
            generates (Status status, CameraMetadata cameraCharacteristics);

};