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Commit 47decd1b authored by Kevin Rocard's avatar Kevin Rocard Committed by android-build-merger
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Audio V4: Add its own function to open the primary device

am: 91aa1af9

Change-Id: Icb71449270b031a3d52e7e41c809c1190788805a
parents 2c8c4f7c 91aa1af9
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+18 −2
Original line number Diff line number Diff line
@@ -18,6 +18,7 @@ package android.hardware.audio@4.0;

import android.hardware.audio.common@4.0;
import IDevice;
import IPrimaryDevice;

/** This factory allows a HAL implementation to be split in multiple independent
 *  devices (called module in the pre-treble API).
@@ -28,8 +29,7 @@ import IDevice;
 *  Each device name is arbitrary, provided by the vendor's audio_policy_configuration.xml
 *  and only used to identify a device in this factory.
 *  The framework must not interpret the name, treating it as a vendor opaque data
 *  with the following exceptions:
 *  - the "primary" device must always be present and is the device used by the telephony framework.
 *  with the following exception:
 *  - the "r_submix" device that must be present to support policyMixes (Eg: Android projected).
 *    Note that this Device is included by default in a build derived from AOSP.
 *
@@ -51,4 +51,20 @@ interface IDevicesFactory {
     * @return result the interface for the created device.
     */
    openDevice(string device) generates (Result retval, IDevice result);

    /**
     * Opens the Primary audio device that must be present.
     * This function is not optional and must return successfully the primary device.
     *
     * This device must have the name "primary".
     *
     * The telephony stack uses this device to control the audio during a voice call.
     *
     * @return retval operation completion status. Must be SUCCESS.
     *         For debuging, return INVALID_ARGUMENTS if there is no corresponding
     *         hardware module found, NOT_INITIALIZED if an error occurred
     *         while opening the hardware module.
     * @return result the interface for the created device.
     */
    openPrimaryDevice() generates (Result retval, IPrimaryDevice result);
};