Add libAudioHal AIDL interface placeholder
Add cpp backend only and ndk backend only conversion.
Add placeholder for DeviceHalInterface and EffectHalInterface.
Add several EffectHalInterface test cases to help testing.
Bug: 261129656
Test: Flash to Cuttlefish and run cts
Test: Flash to Panther and run audio use cases.
Merged-In: Ieaf5d7d72bd7d3e1897964b7abe211456766f443
Change-Id: Ieaf5d7d72bd7d3e1897964b7abe211456766f443
diff --git a/media/libaudiohal/impl/DeviceHalAidl.h b/media/libaudiohal/impl/DeviceHalAidl.h
new file mode 100644
index 0000000..5e8a8dd
--- /dev/null
+++ b/media/libaudiohal/impl/DeviceHalAidl.h
@@ -0,0 +1,130 @@
+/*
+ * Copyright (C) 2022 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.
+ */
+
+#pragma once
+
+#include <media/audiohal/DeviceHalInterface.h>
+#include <media/audiohal/EffectHalInterface.h>
+
+#include <aidl/android/hardware/audio/core/BpModule.h>
+
+namespace android {
+
+class DeviceHalAidl : public DeviceHalInterface {
+ public:
+ // Sets the value of 'devices' to a bitmask of 1 or more values of audio_devices_t.
+ status_t getSupportedDevices(uint32_t *devices) override;
+
+ // Check to see if the audio hardware interface has been initialized.
+ status_t initCheck() override;
+
+ // Set the audio volume of a voice call. Range is between 0.0 and 1.0.
+ status_t setVoiceVolume(float volume) override;
+
+ // Set the audio volume for all audio activities other than voice call.
+ status_t setMasterVolume(float volume) override;
+
+ // Get the current master volume value for the HAL.
+ status_t getMasterVolume(float *volume) override;
+
+ // Called when the audio mode changes.
+ status_t setMode(audio_mode_t mode) override;
+
+ // Muting control.
+ status_t setMicMute(bool state) override;
+
+ status_t getMicMute(bool* state) override;
+
+ status_t setMasterMute(bool state) override;
+
+ status_t getMasterMute(bool *state) override;
+
+ // Set global audio parameters.
+ status_t setParameters(const String8& kvPairs) override;
+
+ // Get global audio parameters.
+ status_t getParameters(const String8& keys, String8 *values) override;
+
+ // Returns audio input buffer size according to parameters passed.
+ status_t getInputBufferSize(const struct audio_config* config, size_t* size) override;
+
+ // Creates and opens the audio hardware output stream. The stream is closed
+ // by releasing all references to the returned object.
+ status_t openOutputStream(audio_io_handle_t handle, audio_devices_t devices,
+ audio_output_flags_t flags, struct audio_config* config,
+ const char* address, sp<StreamOutHalInterface>* outStream) override;
+
+ // Creates and opens the audio hardware input stream. The stream is closed
+ // by releasing all references to the returned object.
+ status_t openInputStream(audio_io_handle_t handle, audio_devices_t devices,
+ struct audio_config* config, audio_input_flags_t flags,
+ const char* address, audio_source_t source,
+ audio_devices_t outputDevice, const char* outputDeviceAddress,
+ sp<StreamInHalInterface>* inStream) override;
+
+ // Returns whether createAudioPatch and releaseAudioPatch operations are supported.
+ status_t supportsAudioPatches(bool* supportsPatches) override;
+
+ // Creates an audio patch between several source and sink ports.
+ status_t createAudioPatch(unsigned int num_sources, const struct audio_port_config* sources,
+ unsigned int num_sinks, const struct audio_port_config* sinks,
+ audio_patch_handle_t* patch) override;
+
+ // Releases an audio patch.
+ status_t releaseAudioPatch(audio_patch_handle_t patch) override;
+
+ // Set audio port configuration.
+ status_t setAudioPortConfig(const struct audio_port_config* config) override;
+
+ // List microphones
+ status_t getMicrophones(std::vector<audio_microphone_characteristic_t>* microphones);
+
+ status_t addDeviceEffect(audio_port_handle_t device, sp<EffectHalInterface> effect) override;
+
+ status_t removeDeviceEffect(audio_port_handle_t device, sp<EffectHalInterface> effect) override;
+
+ status_t getMmapPolicyInfos(media::audio::common::AudioMMapPolicyType policyType __unused,
+ std::vector<media::audio::common::AudioMMapPolicyInfo>* policyInfos
+ __unused) override;
+
+ int32_t getAAudioMixerBurstCount() override;
+
+ int32_t getAAudioHardwareBurstMinUsec() override;
+
+ error::Result<audio_hw_sync_t> getHwAvSync() override;
+
+ status_t dump(int __unused, const Vector<String16>& __unused) override;
+
+ int32_t supportsBluetoothVariableLatency(bool* supports __unused) override;
+
+ private:
+ friend class DevicesFactoryHalAidl;
+ const std::shared_ptr<::aidl::android::hardware::audio::core::IModule> mCore;
+ float mMasterVolume = 0.0f;
+ float mVoiceVolume = 0.0f;
+ bool mMasterMute = false;
+ bool mMicMute = false;
+
+ // Can not be constructed directly by clients.
+ explicit DeviceHalAidl(
+ const std::shared_ptr<::aidl::android::hardware::audio::core::IModule>& core)
+ : mCore(core) {}
+
+ // The destructor automatically closes the device.
+ ~DeviceHalAidl();
+};
+
+} // namespace android