mirror of
https://github.com/Evolution-X/hardware_interfaces
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5d2bfbac33
alsa_device_proxy keeps a pointer to alsa_device_proxy, but does not own it. Thus, the lifetime of the proxy must be no less than of the proxy. In the legacy USB HAL impl they were stored together (struct alsa_device_info). Implement an equivalent class (DeviceProxy) in ALSA utils. Bug: 264712385 Bug: 298712227 Test: atest VtsHalAudioCoreTargetTest Change-Id: I4e36701752afb3f35664b6f2ad1acda5719be1ea
89 lines
3.5 KiB
C++
89 lines
3.5 KiB
C++
/*
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* Copyright (C) 2023 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#pragma once
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#include <functional>
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#include <iostream>
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#include <memory>
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#include <optional>
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#include <vector>
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#include <aidl/android/media/audio/common/AudioChannelLayout.h>
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#include <aidl/android/media/audio/common/AudioFormatDescription.h>
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#include <aidl/android/media/audio/common/AudioPort.h>
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#include "core-impl/Stream.h"
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extern "C" {
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#include <tinyalsa/pcm.h>
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#include "alsa_device_profile.h"
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#include "alsa_device_proxy.h"
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}
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namespace aidl::android::hardware::audio::core::alsa {
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struct DeviceProfile {
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int card;
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int device;
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int direction; /* PCM_OUT or PCM_IN */
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bool isExternal;
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};
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std::ostream& operator<<(std::ostream& os, const DeviceProfile& device);
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class DeviceProxy {
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public:
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DeviceProxy(); // Constructs a "null" proxy.
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explicit DeviceProxy(const DeviceProfile& deviceProfile);
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alsa_device_profile* getProfile() { return mProfile.get(); }
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alsa_device_proxy* get() { return mProxy.get(); }
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private:
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static void alsaProxyDeleter(alsa_device_proxy* proxy);
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using AlsaProxy = std::unique_ptr<alsa_device_proxy, decltype(alsaProxyDeleter)*>;
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std::unique_ptr<alsa_device_profile> mProfile;
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AlsaProxy mProxy;
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};
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::aidl::android::media::audio::common::AudioChannelLayout getChannelLayoutMaskFromChannelCount(
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unsigned int channelCount, int isInput);
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::aidl::android::media::audio::common::AudioChannelLayout getChannelIndexMaskFromChannelCount(
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unsigned int channelCount);
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unsigned int getChannelCountFromChannelMask(
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const ::aidl::android::media::audio::common::AudioChannelLayout& channelMask, bool isInput);
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std::vector<::aidl::android::media::audio::common::AudioChannelLayout> getChannelMasksFromProfile(
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const alsa_device_profile* profile);
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std::optional<DeviceProfile> getDeviceProfile(
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const ::aidl::android::media::audio::common::AudioDevice& audioDevice, bool isInput);
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std::optional<DeviceProfile> getDeviceProfile(
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const ::aidl::android::media::audio::common::AudioPort& audioPort);
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std::optional<struct pcm_config> getPcmConfig(const StreamContext& context, bool isInput);
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std::vector<int> getSampleRatesFromProfile(const alsa_device_profile* profile);
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DeviceProxy openProxyForAttachedDevice(const DeviceProfile& deviceProfile,
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struct pcm_config* pcmConfig, size_t bufferFrameCount);
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DeviceProxy openProxyForExternalDevice(const DeviceProfile& deviceProfile,
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struct pcm_config* pcmConfig, bool requireExactMatch);
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DeviceProxy readAlsaDeviceInfo(const DeviceProfile& deviceProfile);
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void resetTransferredFrames(DeviceProxy& proxy, uint64_t frames);
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::aidl::android::media::audio::common::AudioFormatDescription
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c2aidl_pcm_format_AudioFormatDescription(enum pcm_format legacy);
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pcm_format aidl2c_AudioFormatDescription_pcm_format(
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const ::aidl::android::media::audio::common::AudioFormatDescription& aidl);
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} // namespace aidl::android::hardware::audio::core::alsa
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