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