1 /* 2 * Copyright (C) 2013 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 #define LOG_TAG "IBatteryPropertiesRegistrar" 18 //#define LOG_NDEBUG 0 19 #include <utils/Log.h> 20 21 #include <batteryservice/IBatteryPropertiesListener.h> 22 #include <batteryservice/IBatteryPropertiesRegistrar.h> 23 #include <stdint.h> 24 #include <sys/types.h> 25 #include <binder/Parcel.h> 26 27 namespace android { 28 29 class BpBatteryPropertiesRegistrar : public BpInterface<IBatteryPropertiesRegistrar> { 30 public: 31 explicit BpBatteryPropertiesRegistrar(const sp<IBinder>& impl) 32 : BpInterface<IBatteryPropertiesRegistrar>(impl) {} 33 34 void registerListener(const sp<IBatteryPropertiesListener>& listener) { 35 Parcel data; 36 data.writeInterfaceToken(IBatteryPropertiesRegistrar::getInterfaceDescriptor()); 37 data.writeStrongBinder(IInterface::asBinder(listener)); 38 remote()->transact(REGISTER_LISTENER, data, NULL); 39 } 40 41 void unregisterListener(const sp<IBatteryPropertiesListener>& listener) { 42 Parcel data; 43 data.writeInterfaceToken(IBatteryPropertiesRegistrar::getInterfaceDescriptor()); 44 data.writeStrongBinder(IInterface::asBinder(listener)); 45 remote()->transact(UNREGISTER_LISTENER, data, NULL); 46 } 47 48 status_t getProperty(int id, struct BatteryProperty *val) { 49 Parcel data, reply; 50 data.writeInterfaceToken(IBatteryPropertiesRegistrar::getInterfaceDescriptor()); 51 data.writeInt32(id); 52 remote()->transact(GET_PROPERTY, data, &reply); 53 int32_t ret = reply.readExceptionCode(); 54 if (ret != 0) { 55 return ret; 56 } 57 ret = reply.readInt32(); 58 int parcelpresent = reply.readInt32(); 59 if (parcelpresent) 60 val->readFromParcel(&reply); 61 return ret; 62 } 63 64 void scheduleUpdate() { 65 Parcel data; 66 data.writeInterfaceToken(IBatteryPropertiesRegistrar::getInterfaceDescriptor()); 67 remote()->transact(SCHEDULE_UPDATE, data, NULL); 68 } 69 }; 70 71 IMPLEMENT_META_INTERFACE(BatteryPropertiesRegistrar, "android.os.IBatteryPropertiesRegistrar"); 72 73 status_t BnBatteryPropertiesRegistrar::onTransact(uint32_t code, 74 const Parcel& data, 75 Parcel* reply, 76 uint32_t flags) 77 { 78 switch(code) { 79 case REGISTER_LISTENER: { 80 CHECK_INTERFACE(IBatteryPropertiesRegistrar, data, reply); 81 sp<IBatteryPropertiesListener> listener = 82 interface_cast<IBatteryPropertiesListener>(data.readStrongBinder()); 83 registerListener(listener); 84 return OK; 85 } 86 87 case UNREGISTER_LISTENER: { 88 CHECK_INTERFACE(IBatteryPropertiesRegistrar, data, reply); 89 sp<IBatteryPropertiesListener> listener = 90 interface_cast<IBatteryPropertiesListener>(data.readStrongBinder()); 91 unregisterListener(listener); 92 return OK; 93 } 94 95 case GET_PROPERTY: { 96 CHECK_INTERFACE(IBatteryPropertiesRegistrar, data, reply); 97 int id = data.readInt32(); 98 struct BatteryProperty val; 99 status_t result = getProperty(id, &val); 100 reply->writeNoException(); 101 reply->writeInt32(result); 102 reply->writeInt32(1); 103 val.writeToParcel(reply); 104 return OK; 105 } 106 107 case SCHEDULE_UPDATE: { 108 CHECK_INTERFACE(IBatteryPropertiesRegistrar, data, reply); 109 scheduleUpdate(); 110 return OK; 111 } 112 } 113 return BBinder::onTransact(code, data, reply, flags); 114 }; 115 116 // ---------------------------------------------------------------------------- 117 118 }; // namespace android 119
