blob: 8b4cafaf141f6b309d5a02a88a0b2ef156775552 (
plain) (
tree)
|
|
///////////////////////////////////////////////////////////////////////////
// //
// Electro mechanical meters //
// //
// 23-07-2004: Re-Animator //
// //
// TODO: - meter ticks if the signal changes from high to low AND the //
// signal was high for at least 'reacttime' cycles //
// It should tick if the signal goes from low to high AND stays //
// high for at least xxx milliseconds //
// //
///////////////////////////////////////////////////////////////////////////
#include "driver.h"
#include "meters.h"
// local vars /////////////////////////////////////////////////////////////
static struct
{
long timestamp, // time stamp in cycles after which timer will tick
reacttime,
count; // mechmeter value
int state; // state 0/1
} meter_info[MAXMECHMETERS];
static int number_mtr;
///////////////////////////////////////////////////////////////////////////
void Mechmtr_init(int number)
{
int i;
if ( number > MAXMECHMETERS ) number = MAXMECHMETERS;
for ( i = 0; i < number; i++ )
{
meter_info[i].reacttime = METERREACTTIME;
meter_info[i].state = 0;
meter_info[i].count = 0;
meter_info[i].timestamp = 0;
}
number_mtr = number;
}
///////////////////////////////////////////////////////////////////////////
int MechMtr_GetNumberMeters(void)
{
return number_mtr;
}
///////////////////////////////////////////////////////////////////////////
void MechMtr_Setcount(int id, long count)
{
if ( id >= number_mtr ) return;
meter_info[id].count = count;
}
///////////////////////////////////////////////////////////////////////////
long MechMtr_Getcount(int id)
{
long result = 0;
if ( id < number_mtr ) result = meter_info[id].count;
return result;
}
///////////////////////////////////////////////////////////////////////////
void MechMtr_ReactTime(int id, long cycles)
{
if ( id >= number_mtr ) return;
meter_info[id].reacttime = cycles;
}
///////////////////////////////////////////////////////////////////////////
int Mechmtr_update(int id, long cycles, int state)
{
int res = 0;
if ( id >= number_mtr ) return res;
state = state?1:0;
if ( meter_info[id].state != state )
{ // meter state is changing
meter_info[id].state = state;
if ( state )
{
meter_info[id].timestamp = cycles + meter_info[id].reacttime;
}
else
{
if ( cycles > meter_info[id].timestamp )
{ // meter has been active long enough
res = 1;
meter_info[id].count++;
}
}
}
return res;
}
|