AHAL: support volume control for USB audio HAL.
Use mixer control to support master mute, master volume and hardware
volume for USB audio HAL.
Bug: 266216550
Test: atest VtsHalAudioCoreTargetTest
Change-Id: Iad544ba517cbfc778ebdf96dd161944886383b73
diff --git a/audio/aidl/default/usb/StreamUsb.cpp b/audio/aidl/default/usb/StreamUsb.cpp
index bd53a0e..d6f757c 100644
--- a/audio/aidl/default/usb/StreamUsb.cpp
+++ b/audio/aidl/default/usb/StreamUsb.cpp
@@ -17,6 +17,9 @@
#define LOG_TAG "AHAL_StreamUsb"
#include <android-base/logging.h>
+#include <Utils.h>
+
+#include "UsbAlsaMixerControl.h"
#include "UsbAlsaUtils.h"
#include "core-impl/Module.h"
#include "core-impl/StreamUsb.h"
@@ -30,8 +33,12 @@
using aidl::android::media::audio::common::AudioDevice;
using aidl::android::media::audio::common::AudioDeviceAddress;
using aidl::android::media::audio::common::AudioOffloadInfo;
+using aidl::android::media::audio::common::AudioPortExt;
using aidl::android::media::audio::common::MicrophoneDynamicInfo;
using aidl::android::media::audio::common::MicrophoneInfo;
+using android::OK;
+using android::status_t;
+using android::hardware::audio::common::getChannelCount;
namespace aidl::android::hardware::audio::core {
@@ -239,6 +246,31 @@
// The default worker implementation is used.
return new StreamOutWorker(ctx, driver);
},
- offloadInfo) {}
+ offloadInfo) {
+ mChannelCount = getChannelCount(mContext.getChannelLayout());
+}
+
+ndk::ScopedAStatus StreamOutUsb::getHwVolume(std::vector<float>* _aidl_return) {
+ *_aidl_return = mHwVolumes;
+ return ndk::ScopedAStatus::ok();
+}
+
+ndk::ScopedAStatus StreamOutUsb::setHwVolume(const std::vector<float>& in_channelVolumes) {
+ for (const auto& device : mConnectedDevices) {
+ if (device.address.getTag() != AudioDeviceAddress::alsa) {
+ LOG(DEBUG) << __func__ << ": skip as the device address is not alsa";
+ continue;
+ }
+ const int card = device.address.get<AudioDeviceAddress::alsa>()[0];
+ if (auto result =
+ usb::UsbAlsaMixerControl::getInstance().setVolumes(card, in_channelVolumes);
+ !result.isOk()) {
+ LOG(ERROR) << __func__ << ": failed to set volume for device, card=" << card;
+ return result;
+ }
+ }
+ mHwVolumes = in_channelVolumes;
+ return ndk::ScopedAStatus::ok();
+}
} // namespace aidl::android::hardware::audio::core