1/*
2 * Copyright (C) 2004-2010 NXP Software
3 * Copyright (C) 2010 The Android Open Source Project
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
8 *
9 *      http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17
18/****************************************************************************************/
19/*  INCLUDE FILES                                                                       */
20/****************************************************************************************/
21
22#include "LVM_Timer.h"
23#include "LVM_Timer_Private.h"
24#include "LVM_Macros.h"
25
26/****************************************************************************************/
27/*  DEFINITIONS                                                                         */
28/****************************************************************************************/
29
30#define OneOverThousandInQ24 16777
31
32/****************************************************************************************/
33/*  INIT FUNCTION                                                                       */
34/****************************************************************************************/
35
36void LVM_Timer_Init (   LVM_Timer_Instance_t       *pInstance,
37                        LVM_Timer_Params_t         *pParams     ){
38
39    LVM_Timer_Instance_Private_t *pInstancePr;
40    pInstancePr = (LVM_Timer_Instance_Private_t *)pInstance;
41
42    pInstancePr->CallBackParam     = pParams->CallBackParam;
43    pInstancePr->pCallBackParams   = pParams->pCallBackParams;
44    pInstancePr->pCallbackInstance = pParams->pCallbackInstance;
45    pInstancePr->pCallBack         = pParams->pCallBack;
46    pInstancePr->TimerArmed        = 1;
47
48    MUL32x16INTO32(pParams->SamplingRate,OneOverThousandInQ24,pInstancePr->RemainingTimeInSamples,16);  /* (Q0 * Q24) >>16 into Q8*/
49    MUL32x16INTO32(pInstancePr->RemainingTimeInSamples,pParams->TimeInMs,pInstancePr->RemainingTimeInSamples,8);  /* (Q8 * Q0) >>8 into Q0*/
50}
51
52/****************************************************************************************/
53/*  END OF FILE                                                                         */
54/****************************************************************************************/
55