1 // Copyright 2016 The Android Open Source Project 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 // 15 16 // Handler for input events in /dev/input. AudioDaemonHandler is the base class 17 // that other handlers inherit. 18 19 #ifndef BRILLO_AUDIO_AUDIOSERVICE_AUDIO_DAEMON_HANDLER_H_ 20 #define BRILLO_AUDIO_AUDIOSERVICE_AUDIO_DAEMON_HANDLER_H_ 21 22 #include <linux/input.h> 23 #include <media/IAudioPolicyService.h> 24 25 namespace brillo { 26 27 class AudioDaemonHandler { 28 public: 29 virtual ~AudioDaemonHandler(){}; 30 31 // Initialize the handler. 32 // 33 // |aps| is a pointer to the binder object. 34 virtual void Init(android::sp<android::IAudioPolicyService> aps) = 0; 35 36 // Process input events from the kernel. 37 // 38 // |event| is a pointer to an input_event. This function should be able to 39 // gracefully handle input events that are not relevant to the functionality 40 // provided by this class. 41 virtual void ProcessEvent(const struct input_event& event) = 0; 42 43 // Inform the handler that the audio policy service has been disconnected. 44 virtual void APSDisconnect() = 0; 45 46 // Inform the handler that the audio policy service is reconnected. 47 // 48 // |aps| is a pointer to the binder object. 49 virtual void APSConnect(android::sp<android::IAudioPolicyService> aps) = 0; 50 51 protected: 52 // Pointer to the audio policy service. 53 android::sp<android::IAudioPolicyService> aps_; 54 }; 55 56 } // namespace brillo 57 58 #endif // BRILLO_AUDIO_AUDIOSERVICE_AUDIO_DAEMON_HANDLER_H_ 59
