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cf824f65c8
Core HAL changes: 1. Add StreamPrimary implemented via StreamAlsa. 2. Align the configuration with the HIDL HAL. 3. Fix position retrieval vs. standby call. 4. Fix sleeps in StreamAlsa. VTS changes: 1. Use several bursts for stream I/O test scenarios that check observable position increase. This is because the position may not be available until a couple of transfers have been made. 2. Do not require position increase for the scenarios that do not make several bursts. As specified above, the position may not have been increased for the ALSA case. Whereas, using multiple bursts in all scenarios will increase test time, and make the state machine transitions graph more complicated. 3. Hook up the test config file to shut down audioserver during VTS tests, fix the test config file. Bug: 286914845 Test: atest VtsHalAudioCoreTargetTest Test: compare APM dumps for AIDL vs. HIDL Change-Id: I85271564c664fa40008d60e82b32eaa66a99c68f
Audio HAL
Directory structure of the audio HAL related code.
Run common/all-versions/copyHAL.sh to create a new version of the audio HAL
based on an existing one.
Directory Structure
2.0— version 2.0 of the core HIDL API. Note that.halfiles can not be moved into thecoredirectory because that would change its namespace and include path.config— the XSD schema for the Audio Policy Manager configuration file.
4.0— version 4.0 of the core HIDL API.- ...
common— common types for audio core and effect HIDL API.2.0— version 2.0 of the common types HIDL API.4.0— version 4.0.- ...
7.0— version 7.0.example— example implementation of the core and effect V7.0 API. It represents a "fake" audio HAL that doesn't actually communicate with hardware.
all-versions— code common to all version of both core and effect API.default— shared code of the default implementation.service— vendor HAL service for hosting the default implementation.
test— utilities used by tests.util— utilities used by both implementation and tests.
core— VTS tests and the default implementation of the core API (not HIDL API, it's inaudio/N.M).7.0— code specific to version V7.0 of the core HIDL APIall-versions— the code is common between all versions, version-specific parts are enclosed into conditional directives of preprocessor or reside in dedicated files.default— code that wraps the legacy API (fromhardware/libhardware).util— utilities for the default implementation.
vtsVTS tests for the core HIDL API.
effect— same for the effect HIDL API.2.0config— the XSD schema for the Audio Effects configuration file.
4.0- ...
all-versionsdefault— code that wraps the legacy API (fromhardware/libhardware).util— utilities for the default implementation.
vtsVTS tests for the effect HIDL API.
policy— Configurable Audio Policy schemes.1.0— note that versions of CAP are not linked to the versions of audio HAL.vts— VTS tests for validating actual configuration files.xml— XSD schemas for CAP configuration files.