// license:BSD-3-Clause
// copyright-holders:James Wallace
///////////////////////////////////////////////////////////////////////////
// //
// Electro mechanical meters //
// //
// //
///////////////////////////////////////////////////////////////////////////
#include "emu.h"
#include "meters.h"
/*****************************************************************************
DEVICE INTERFACE
*****************************************************************************/
DEFINE_DEVICE_TYPE(METERS, meters_device, "meters", "Electromechanical meters")
meters_device::meters_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
: device_t(mconfig, METERS, tag, owner, clock)
, m_number_mtr(0)
{
memset(m_meter_info, 0, sizeof(m_meter_info));
}
//-------------------------------------------------
// device_start - device-specific startup
//-------------------------------------------------
void meters_device::device_start()
{
if ( m_number_mtr > MAXMECHMETERS )
m_number_mtr = MAXMECHMETERS;
for ( int i = 0; i < m_number_mtr; i++ )
{
m_meter_info[i].reacttime = METERREACTTIME;
m_meter_info[i].state = 0;
m_meter_info[i].count = 0;
m_meter_info[i].on = 0;
m_meter_info[i].meter_timer = timer_alloc(i);
m_meter_info[i].meter_timer->reset();
//save_item(NAME(m_meter_info[i].reacttime), i); //enable if void ReactTime(int id, int32_t cycles) gets used
save_item(NAME(m_meter_info[i].state), i);
save_item(NAME(m_meter_info[i].count), i);
save_item(NAME(m_meter_info[i].on), i);
}
}
//-------------------------------------------------
// device_reset - device-specific reset
//-------------------------------------------------
void meters_device::device_reset()
{
}
//-------------------------------------------------
// device_timer - device-specific timer events
//-------------------------------------------------
void meters_device::device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr)
{
if (id >= m_number_mtr)
assert_always(false, "Unknown id in meters_device::device_timer");
m_meter_info[param].count++;
}
///////////////////////////////////////////////////////////////////////////
int meters_device::GetNumberMeters(void) // currently unused
{
return m_number_mtr;
}
///////////////////////////////////////////////////////////////////////////
void meters_device::Setcount(int id, int32_t count) // currently unused
{
if ( id >= m_number_mtr )
return;
m_meter_info[id].count = count;
}
///////////////////////////////////////////////////////////////////////////
int32_t meters_device::Getcount(int id) // currently unused
{
int32_t result = 0;
if ( id < m_number_mtr )
result = m_meter_info[id].count;
return result;
}
///////////////////////////////////////////////////////////////////////////
void meters_device::ReactTime(int id, int32_t cycles) // currently unused
{
if ( id >= m_number_mtr )
return;
m_meter_info[id].reacttime = cycles;
}
///////////////////////////////////////////////////////////////////////////
int meters_device::GetActivity(int id)
{
return m_meter_info[id].on;
}
///////////////////////////////////////////////////////////////////////////
int meters_device::update(int id, int state)
{
int res = 0;
if ( id >= m_number_mtr )
return res;
state = state?1:0;
if ( m_meter_info[id].state != state )
{ // meter state is changing
m_meter_info[id].state = state;
if ( state )
{
m_meter_info[id].on =1;
m_meter_info[id].meter_timer->adjust(attotime::from_seconds(m_meter_info[id].reacttime), id);
}
else
{
m_meter_info[id].on =0;
m_meter_info[id].meter_timer->adjust(attotime::never, id);
}
}
return m_meter_info[id].on;
}