tpu_pta.h

mpc564 时钟中断 时钟中断

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/**************************************************************************/
/* FILE NAME: tpu_pta.h                       COPYRIGHT (c) MOTOROLA 2002 */
/* VERSION: 1.0                                   All Rights Reserved     */
/*                                                                        */
/* DESCRIPTION: This file defines the interface to the TPU PTA function   */
/* and provides useful #defines.                                          */
/*                                                                        */
/*========================================================================*/
/* HISTORY           ORIGINAL AUTHOR: Stan Ostrum                         */
/*                                                                        */
/* REV     AUTHOR       DATE       DESCRIPTION OF CHANGE                  */
/* ---   -----------  ---------    ---------------------                  */
/* 1.0   Stan Ostrum  31 Aug 02    Initial version of function.           */
/**************************************************************************/
#ifndef _TPU_PTA_H
#define _TPU_PTA_H

#include "m_common.h"
#include "m_tpu3.h"

/* Define HSR values */
#define TPU_PTA_INIT 0x3

/* Define modes (HSQ values) */
#define TPU_PTA_HIGH_TIME_ACCUM     0x0
#define TPU_PTA_LOW_TIME_ACCUM      0x1
#define TPU_PTA_PERIOD_ACCUM_RISE   0x2
#define TPU_PTA_PERIOD_ACCUM_FALL   0x3

/* Define timebases */
#define TPU_PTA_TCR1                1
#define TPU_PTA_TCR2                2

/* Define configuration values for TCR1 timebase */
#define TPU_PTA_HI_LOW_PW           0x0F
#define TPU_PTA_PERIOD_RISING       0x07
#define TPU_PTA_PERIOD_FALLING      0x0B

/* Define parameter RAM locations */
#define TPU_PTA_CHAN_CNTL           0
#define TPU_PTA_MAX_CNT_PRD_CNT     1
#define TPU_PTA_LAST_TIME           2
#define TPU_PTA_ACCUM               3
#define TPU_PTA_HIGH_WORD           4
#define TPU_PTA_LOW_WORD            5

/* TPU PTA function prototypes */

void tpu_pta_init(struct TPU3_tag *tpu, UINT8 channel, UINT8 priority, \
                UINT8 timebase, UINT8 mode, UINT8 max_count);

UINT32 tpu_pta_get_accumulation(struct TPU3_tag *tpu, UINT8 channel);

UINT8 tpu_pta_get_period_count(struct TPU3_tag *tpu, UINT8 channel);


#endif /* ifndef _TPU_PTA_H  */