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96 lines
3.2 KiB
96 lines
3.2 KiB
/*
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* Copyright (C) 2016 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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#include <string.h>
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#define LOG_TAG "DevicesFactoryHalHidl"
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//#define LOG_NDEBUG 0
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#include <android/hardware/audio/2.0/IDevice.h>
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#include <media/audiohal/hidl/HalDeathHandler.h>
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#include <utils/Log.h>
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#include "ConversionHelperHidl.h"
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#include "DeviceHalHidl.h"
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#include "DevicesFactoryHalHidl.h"
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using ::android::hardware::audio::V2_0::IDevice;
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using ::android::hardware::audio::V2_0::Result;
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using ::android::hardware::Return;
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namespace android {
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DevicesFactoryHalHidl::DevicesFactoryHalHidl() {
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mDevicesFactory = IDevicesFactory::getService();
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if (mDevicesFactory != 0) {
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// It is assumed that DevicesFactory is owned by AudioFlinger
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// and thus have the same lifespan.
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mDevicesFactory->linkToDeath(HalDeathHandler::getInstance(), 0 /*cookie*/);
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} else {
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ALOGE("Failed to obtain IDevicesFactory service, terminating process.");
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exit(1);
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}
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}
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DevicesFactoryHalHidl::~DevicesFactoryHalHidl() {
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}
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// static
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status_t DevicesFactoryHalHidl::nameFromHal(const char *name, IDevicesFactory::Device *device) {
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if (strcmp(name, AUDIO_HARDWARE_MODULE_ID_PRIMARY) == 0) {
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*device = IDevicesFactory::Device::PRIMARY;
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return OK;
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} else if(strcmp(name, AUDIO_HARDWARE_MODULE_ID_A2DP) == 0) {
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*device = IDevicesFactory::Device::A2DP;
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return OK;
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} else if(strcmp(name, AUDIO_HARDWARE_MODULE_ID_USB) == 0) {
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*device = IDevicesFactory::Device::USB;
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return OK;
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} else if(strcmp(name, AUDIO_HARDWARE_MODULE_ID_REMOTE_SUBMIX) == 0) {
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*device = IDevicesFactory::Device::R_SUBMIX;
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return OK;
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} else if(strcmp(name, AUDIO_HARDWARE_MODULE_ID_STUB) == 0) {
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*device = IDevicesFactory::Device::STUB;
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return OK;
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}
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ALOGE("Invalid device name %s", name);
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return BAD_VALUE;
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}
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status_t DevicesFactoryHalHidl::openDevice(const char *name, sp<DeviceHalInterface> *device) {
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if (mDevicesFactory == 0) return NO_INIT;
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IDevicesFactory::Device hidlDevice;
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status_t status = nameFromHal(name, &hidlDevice);
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if (status != OK) return status;
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Result retval = Result::NOT_INITIALIZED;
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Return<void> ret = mDevicesFactory->openDevice(
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hidlDevice,
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[&](Result r, const sp<IDevice>& result) {
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retval = r;
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if (retval == Result::OK) {
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*device = new DeviceHalHidl(result);
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}
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});
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if (ret.isOk()) {
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if (retval == Result::OK) return OK;
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else if (retval == Result::INVALID_ARGUMENTS) return BAD_VALUE;
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else return NO_INIT;
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}
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return FAILED_TRANSACTION;
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}
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} // namespace android
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