1 /* 2 * Copyright (C) 2018 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef ANDROID_HARDWARE_AUDIO_PARAMETERS_UTIL_H_ 18 #define ANDROID_HARDWARE_AUDIO_PARAMETERS_UTIL_H_ 19 20 // clang-format off 21 #include PATH(android/hardware/audio/common/COMMON_TYPES_FILE_VERSION/types.h) 22 #include PATH(android/hardware/audio/CORE_TYPES_FILE_VERSION/types.h) 23 // clang-format on 24 25 #include <functional> 26 #include <memory> 27 28 #include <hidl/HidlSupport.h> 29 #include <media/AudioParameter.h> 30 31 namespace android { 32 namespace hardware { 33 namespace audio { 34 namespace CORE_TYPES_CPP_VERSION { 35 namespace implementation { 36 37 using ::android::hardware::hidl_string; 38 using ::android::hardware::hidl_vec; 39 using namespace ::android::hardware::audio::common::COMMON_TYPES_CPP_VERSION; 40 using namespace ::android::hardware::audio::CORE_TYPES_CPP_VERSION; 41 42 class ParametersUtil { 43 public: 44 Result setParam(const char* name, const char* value); 45 Result getParam(const char* name, bool* value); 46 Result getParam(const char* name, int* value); 47 Result getParam(const char* name, String8* value, AudioParameter context = {}); 48 void getParametersImpl( 49 const hidl_vec<ParameterValue>& context, const hidl_vec<hidl_string>& keys, 50 std::function<void(Result retval, const hidl_vec<ParameterValue>& parameters)> cb); 51 std::unique_ptr<AudioParameter> getParams(const AudioParameter& keys); 52 Result setParam(const char* name, bool value); 53 Result setParam(const char* name, int value); 54 Result setParam(const char* name, float value); 55 Result setParametersImpl(const hidl_vec<ParameterValue>& context, 56 const hidl_vec<ParameterValue>& parameters); 57 Result setParams(const AudioParameter& param); 58 Result setParam(const char* name, const DeviceAddress& address); 59 60 protected: ~ParametersUtil()61 virtual ~ParametersUtil() {} 62 63 virtual char* halGetParameters(const char* keys) = 0; 64 virtual int halSetParameters(const char* keysAndValues) = 0; 65 }; 66 67 } // namespace implementation 68 } // namespace CORE_TYPES_CPP_VERSION 69 } // namespace audio 70 } // namespace hardware 71 } // namespace android 72 73 #endif // ANDROID_HARDWARE_AUDIO_PARAMETERS_UTIL_H_ 74