1 /* 2 * Copyright (C) 2012 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 <android/hardware/power/1.0/IPower.h> 18 #include <stdint.h> 19 #include <sys/types.h> 20 21 #include <android/log.h> 22 #include <utils/Errors.h> 23 24 #include <binder/IServiceManager.h> 25 #include <powermanager/IPowerManager.h> 26 #include <powermanager/PowerManager.h> 27 28 #include "PowerHAL.h" 29 30 using android::hardware::power::V1_0::PowerHint; 31 namespace android { 32 // --------------------------------------------------------------------------- 33 vsyncHint(bool enabled)34status_t PowerHAL::vsyncHint(bool enabled) { 35 Mutex::Autolock _l(mlock); 36 if (mPowerManager == NULL) { 37 const String16 serviceName("power"); 38 sp<IBinder> bs = defaultServiceManager()->checkService(serviceName); 39 if (bs == NULL) { 40 return NAME_NOT_FOUND; 41 } 42 mPowerManager = interface_cast<IPowerManager>(bs); 43 } 44 status_t status; 45 status = mPowerManager->powerHint(static_cast<int>(PowerHint::VSYNC), 46 enabled ? 1 : 0); 47 if(status == DEAD_OBJECT) { 48 mPowerManager = NULL; 49 } 50 return status; 51 } 52 53 // --------------------------------------------------------------------------- 54 }; // namespace android 55 56