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/*
* Copyright (C) 2016 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.
*/
#ifndef ANDROID_HARDWARE_CONVERSION_HELPER_HIDL_H
#define ANDROID_HARDWARE_CONVERSION_HELPER_HIDL_H
#include PATH(android/hardware/audio/FILE_VERSION/types.h)
#include <hidl/HidlSupport.h>
#include <system/audio.h>
#include <utils/String8.h>
using ::android::hardware::audio::CPP_VERSION::ParameterValue;
using CoreResult = ::android::hardware::audio::CPP_VERSION::Result;
using ::android::hardware::Return;
using ::android::hardware::hidl_string;
using ::android::hardware::hidl_vec;
namespace android {
namespace CPP_VERSION {
class ConversionHelperHidl {
protected:
static status_t keysFromHal(const String8& keys, hidl_vec<hidl_string> *hidlKeys);
static status_t parametersFromHal(const String8& kvPairs, hidl_vec<ParameterValue> *hidlParams);
static void parametersToHal(const hidl_vec<ParameterValue>& parameters, String8 *values);
ConversionHelperHidl(const char* className);
template<typename R, typename T>
status_t processReturn(const char* funcName, const Return<R>& ret, T *retval) {
if (ret.isOk()) {
// This way it also works for enum class to unscoped enum conversion.
*retval = static_cast<T>(static_cast<R>(ret));
return OK;
}
return processReturn(funcName, ret);
}
template<typename T>
status_t processReturn(const char* funcName, const Return<T>& ret) {
if (!ret.isOk()) {
emitError(funcName, ret.description().c_str());
}
return ret.isOk() ? OK : FAILED_TRANSACTION;
}
status_t processReturn(const char* funcName, const Return<CoreResult>& ret) {
if (!ret.isOk()) {
emitError(funcName, ret.description().c_str());
}
return ret.isOk() ? analyzeResult(ret) : FAILED_TRANSACTION;
}
template<typename T>
status_t processReturn(
const char* funcName, const Return<T>& ret, CoreResult retval) {
if (!ret.isOk()) {
emitError(funcName, ret.description().c_str());
}
return ret.isOk() ? analyzeResult(retval) : FAILED_TRANSACTION;
}
private:
const char* mClassName;
static status_t analyzeResult(const CoreResult& result);
void emitError(const char* funcName, const char* description);
};
#if MAJOR_VERSION >= 4
using ::android::hardware::audio::CPP_VERSION::MicrophoneInfo;
void microphoneInfoToHal(const MicrophoneInfo& src,
audio_microphone_characteristic_t *pDst);
#endif
} // namespace CPP_VERSION
} // namespace android
#endif // ANDROID_HARDWARE_CONVERSION_HELPER_HIDL_H
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