/* * Copyright (C) 2004-2010 NXP Software * Copyright (C) 2010 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ /****************************************************************************************/ /* INCLUDE FILES */ /****************************************************************************************/ #include "LVM_Timer.h" #include "LVM_Timer_Private.h" #include "LVM_Macros.h" /****************************************************************************************/ /* DEFINITIONS */ /****************************************************************************************/ #define OneOverThousandInQ24 16777 /****************************************************************************************/ /* INIT FUNCTION */ /****************************************************************************************/ void LVM_Timer_Init ( LVM_Timer_Instance_t *pInstance, LVM_Timer_Params_t *pParams ){ LVM_Timer_Instance_Private_t *pInstancePr; pInstancePr = (LVM_Timer_Instance_Private_t *)pInstance; pInstancePr->CallBackParam = pParams->CallBackParam; pInstancePr->pCallBackParams = pParams->pCallBackParams; pInstancePr->pCallbackInstance = pParams->pCallbackInstance; pInstancePr->pCallBack = pParams->pCallBack; pInstancePr->TimerArmed = 1; MUL32x16INTO32(pParams->SamplingRate,OneOverThousandInQ24,pInstancePr->RemainingTimeInSamples,16); /* (Q0 * Q24) >>16 into Q8*/ MUL32x16INTO32(pInstancePr->RemainingTimeInSamples,pParams->TimeInMs,pInstancePr->RemainingTimeInSamples,8); /* (Q8 * Q0) >>8 into Q0*/ } /****************************************************************************************/ /* END OF FILE */ /****************************************************************************************/