1 /* 2 * Copyright (C) 2016 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_EFFECT_HAL_HIDL_4_0_H 18 #define ANDROID_HARDWARE_EFFECT_HAL_HIDL_4_0_H 19 20 #include <android/hardware/audio/effect/4.0/IEffect.h> 21 #include <media/audiohal/EffectHalInterface.h> 22 #include <fmq/EventFlag.h> 23 #include <fmq/MessageQueue.h> 24 #include <system/audio_effect.h> 25 26 using ::android::hardware::audio::effect::V4_0::EffectBufferConfig; 27 using ::android::hardware::audio::effect::V4_0::EffectConfig; 28 using ::android::hardware::audio::effect::V4_0::EffectDescriptor; 29 using ::android::hardware::audio::effect::V4_0::IEffect; 30 using ::android::hardware::EventFlag; 31 using ::android::hardware::MessageQueue; 32 33 namespace android { 34 namespace V4_0 { 35 36 class EffectHalHidl : public EffectHalInterface 37 { 38 public: 39 // Set the input buffer. 40 virtual status_t setInBuffer(const sp<EffectBufferHalInterface>& buffer); 41 42 // Set the output buffer. 43 virtual status_t setOutBuffer(const sp<EffectBufferHalInterface>& buffer); 44 45 // Effect process function. 46 virtual status_t process(); 47 48 // Process reverse stream function. This function is used to pass 49 // a reference stream to the effect engine. 50 virtual status_t processReverse(); 51 52 // Send a command and receive a response to/from effect engine. 53 virtual status_t command(uint32_t cmdCode, uint32_t cmdSize, void *pCmdData, 54 uint32_t *replySize, void *pReplyData); 55 56 // Returns the effect descriptor. 57 virtual status_t getDescriptor(effect_descriptor_t *pDescriptor); 58 59 // Free resources on the remote side. 60 virtual status_t close(); 61 62 // Whether it's a local implementation. isLocal()63 virtual bool isLocal() const { return false; } 64 effectId()65 uint64_t effectId() const { return mEffectId; } 66 67 static void effectDescriptorToHal( 68 const EffectDescriptor& descriptor, effect_descriptor_t* halDescriptor); 69 70 private: 71 friend class EffectsFactoryHalHidl; 72 typedef MessageQueue< 73 hardware::audio::effect::V4_0::Result, hardware::kSynchronizedReadWrite> StatusMQ; 74 75 sp<IEffect> mEffect; 76 const uint64_t mEffectId; 77 sp<EffectBufferHalInterface> mInBuffer; 78 sp<EffectBufferHalInterface> mOutBuffer; 79 bool mBuffersChanged; 80 std::unique_ptr<StatusMQ> mStatusMQ; 81 EventFlag* mEfGroup; 82 83 static status_t analyzeResult(const hardware::audio::effect::V4_0::Result& result); 84 static void effectBufferConfigFromHal( 85 const buffer_config_t& halConfig, EffectBufferConfig* config); 86 static void effectBufferConfigToHal( 87 const EffectBufferConfig& config, buffer_config_t* halConfig); 88 static void effectConfigFromHal(const effect_config_t& halConfig, EffectConfig* config); 89 static void effectConfigToHal(const EffectConfig& config, effect_config_t* halConfig); 90 91 // Can not be constructed directly by clients. 92 EffectHalHidl(const sp<IEffect>& effect, uint64_t effectId); 93 94 // The destructor automatically releases the effect. 95 virtual ~EffectHalHidl(); 96 97 status_t getConfigImpl(uint32_t cmdCode, uint32_t *replySize, void *pReplyData); 98 status_t prepareForProcessing(); 99 bool needToResetBuffers(); 100 status_t processImpl(uint32_t mqFlag); 101 status_t setConfigImpl( 102 uint32_t cmdCode, uint32_t cmdSize, void *pCmdData, 103 uint32_t *replySize, void *pReplyData); 104 status_t setProcessBuffers(); 105 }; 106 107 } // namespace V4_0 108 } // namespace android 109 110 #endif // ANDROID_HARDWARE_EFFECT_HAL_HIDL_4_0_H 111