1 /* 2 * Copyright (C) 2010 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 #include <stdint.h> 18 #include <sys/types.h> 19 20 #include <utils/Errors.h> 21 #include <utils/RefBase.h> 22 #include <utils/Timers.h> 23 24 #include <binder/Parcel.h> 25 #include <binder/IInterface.h> 26 27 #include <gui/ISensorEventConnection.h> 28 #include <gui/BitTube.h> 29 30 namespace android { 31 // ---------------------------------------------------------------------------- 32 33 enum { 34 GET_SENSOR_CHANNEL = IBinder::FIRST_CALL_TRANSACTION, 35 ENABLE_DISABLE, 36 SET_EVENT_RATE 37 }; 38 39 class BpSensorEventConnection : public BpInterface<ISensorEventConnection> 40 { 41 public: 42 BpSensorEventConnection(const sp<IBinder>& impl) 43 : BpInterface<ISensorEventConnection>(impl) 44 { 45 } 46 47 virtual sp<BitTube> getSensorChannel() const 48 { 49 Parcel data, reply; 50 data.writeInterfaceToken(ISensorEventConnection::getInterfaceDescriptor()); 51 remote()->transact(GET_SENSOR_CHANNEL, data, &reply); 52 return new BitTube(reply); 53 } 54 55 virtual status_t enableDisable(int handle, bool enabled) 56 { 57 Parcel data, reply; 58 data.writeInterfaceToken(ISensorEventConnection::getInterfaceDescriptor()); 59 data.writeInt32(handle); 60 data.writeInt32(enabled); 61 remote()->transact(ENABLE_DISABLE, data, &reply); 62 return reply.readInt32(); 63 } 64 65 virtual status_t setEventRate(int handle, nsecs_t ns) 66 { 67 Parcel data, reply; 68 data.writeInterfaceToken(ISensorEventConnection::getInterfaceDescriptor()); 69 data.writeInt32(handle); 70 data.writeInt64(ns); 71 remote()->transact(SET_EVENT_RATE, data, &reply); 72 return reply.readInt32(); 73 } 74 }; 75 76 IMPLEMENT_META_INTERFACE(SensorEventConnection, "android.gui.SensorEventConnection"); 77 78 // ---------------------------------------------------------------------------- 79 80 status_t BnSensorEventConnection::onTransact( 81 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) 82 { 83 switch(code) { 84 case GET_SENSOR_CHANNEL: { 85 CHECK_INTERFACE(ISensorEventConnection, data, reply); 86 sp<BitTube> channel(getSensorChannel()); 87 channel->writeToParcel(reply); 88 return NO_ERROR; 89 } break; 90 case ENABLE_DISABLE: { 91 CHECK_INTERFACE(ISensorEventConnection, data, reply); 92 int handle = data.readInt32(); 93 int enabled = data.readInt32(); 94 status_t result = enableDisable(handle, enabled); 95 reply->writeInt32(result); 96 return NO_ERROR; 97 } break; 98 case SET_EVENT_RATE: { 99 CHECK_INTERFACE(ISensorEventConnection, data, reply); 100 int handle = data.readInt32(); 101 int ns = data.readInt64(); 102 status_t result = setEventRate(handle, ns); 103 reply->writeInt32(result); 104 return NO_ERROR; 105 } break; 106 } 107 return BBinder::onTransact(code, data, reply, flags); 108 } 109 110 // ---------------------------------------------------------------------------- 111 }; // namespace android 112
