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// license:BSD-3-Clause
// copyright-holders:Aaron Giles
/***************************************************************************
timer.h
Timer devices.
***************************************************************************/
#pragma once
#ifndef __EMU_H__
#error Dont include this file directly; include emu.h instead.
#endif
#ifndef __TIMER_H__
#define __TIMER_H__
//**************************************************************************
// MACROS
//**************************************************************************
// macros for a timer callback functions
#define TIMER_DEVICE_CALLBACK_MEMBER(name) void name(timer_device &timer, void *ptr, INT32 param)
//**************************************************************************
// TIMER DEVICE CONFIGURATION MACROS
//**************************************************************************
#define MCFG_TIMER_ADD_NONE(_tag) \
MCFG_DEVICE_ADD(_tag, TIMER, 0) \
timer_device::static_configure_generic(*device, timer_device_expired_delegate());
#define MCFG_TIMER_DRIVER_ADD(_tag, _class, _callback) \
MCFG_DEVICE_ADD(_tag, TIMER, 0) \
timer_device::static_configure_generic(*device, timer_device_expired_delegate(&_class::_callback, #_class "::" #_callback, NULL, (_class *)0));
#define MCFG_TIMER_DEVICE_ADD(_tag, _devtag, _class, _callback) \
MCFG_DEVICE_ADD(_tag, TIMER, 0) \
timer_device::static_configure_generic(*device, timer_device_expired_delegate(&_class::_callback, #_class "::" #_callback, _devtag, (_class *)0));
#define MCFG_TIMER_DRIVER_ADD_PERIODIC(_tag, _class, _callback, _period) \
MCFG_DEVICE_ADD(_tag, TIMER, 0) \
timer_device::static_configure_periodic(*device, timer_device_expired_delegate(&_class::_callback, #_class "::" #_callback, NULL, (_class *)0), _period);
#define MCFG_TIMER_DEVICE_ADD_PERIODIC(_tag, _devtag, _class, _callback, _period) \
MCFG_DEVICE_ADD(_tag, TIMER, 0) \
timer_device::static_configure_periodic(*device, timer_device_expired_delegate(&_class::_callback, #_class "::" #_callback, _devtag, (_class *)0), _period);
#define MCFG_TIMER_DRIVER_ADD_SCANLINE(_tag, _class, _callback, _screen, _first_vpos, _increment) \
MCFG_DEVICE_ADD(_tag, TIMER, 0) \
timer_device::static_configure_scanline(*device, timer_device_expired_delegate(&_class::_callback, #_class "::" #_callback, NULL, (_class *)0), _screen, _first_vpos, _increment);
#define MCFG_TIMER_DEVICE_ADD_SCANLINE(_tag, _devtag, _class, _callback, _screen, _first_vpos, _increment) \
MCFG_DEVICE_ADD(_tag, TIMER, 0) \
timer_device::static_configure_scanline(*device, timer_device_expired_delegate(&_class::_callback, #_class "::" #_callback, _devtag, (_class *)0), _screen, _first_vpos, _increment);
#define MCFG_TIMER_MODIFY(_tag) \
MCFG_DEVICE_MODIFY(_tag)
#define MCFG_TIMER_DRIVER_CALLBACK(_class, _callback) \
timer_device::static_set_callback(*device, timer_device_expired_delegate(&_class::_callback, #_class "::" #_callback, NULL, (_class *)0));
#define MCFG_TIMER_START_DELAY(_start_delay) \
timer_device::static_set_start_delay(*device, _start_delay);
#define MCFG_TIMER_PARAM(_param) \
timer_device::static_set_param(*device, _param);
#define MCFG_TIMER_PTR(_ptr) \
timer_device::static_set_ptr(*device, (void *)(_ptr));
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// forward declarations
class emu_timer;
class timer_device;
// a timer callbacks look like this
typedef device_delegate<void (timer_device &, void *, INT32)> timer_device_expired_delegate;
// ======================> timer_device
class timer_device : public device_t
{
public:
// construction/destruction
timer_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
// inline configuration helpers
static void static_configure_generic(device_t &device, timer_device_expired_delegate callback);
static void static_configure_periodic(device_t &device, timer_device_expired_delegate callback, const attotime &period);
static void static_configure_scanline(device_t &device, timer_device_expired_delegate callback, const char *screen, int first_vpos, int increment);
static void static_set_callback(device_t &device, timer_device_expired_delegate callback);
static void static_set_start_delay(device_t &device, const attotime &delay);
static void static_set_param(device_t &device, int param);
static void static_set_ptr(device_t &device, void *ptr);
// property getters
int param() const { return m_timer->param(); }
void *ptr() const { return m_ptr; }
bool enabled() const { return m_timer->enabled(); }
// property setters
void set_param(int param) { assert(m_type == TIMER_TYPE_GENERIC); m_timer->set_param(param); }
void set_ptr(void *ptr) { m_ptr = ptr; }
void enable(bool enable = true) { m_timer->enable(enable); }
// adjustments
void reset() { adjust(attotime::never, 0, attotime::never); }
void adjust(const attotime &duration, INT32 param = 0, const attotime &period = attotime::never) { assert(m_type == TIMER_TYPE_GENERIC); m_timer->adjust(duration, param, period); }
// timing information
attotime time_elapsed() const { return m_timer->elapsed(); }
attotime time_left() const { return m_timer->remaining(); }
attotime start_time() const { return m_timer->start(); }
attotime fire_time() const { return m_timer->expire(); }
private:
// device-level overrides
virtual void device_validity_check(validity_checker &valid) const;
virtual void device_start();
virtual void device_reset();
virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr);
// timer types
enum timer_type
{
TIMER_TYPE_PERIODIC,
TIMER_TYPE_SCANLINE,
TIMER_TYPE_GENERIC
};
// configuration data
timer_type m_type; // type of timer
timer_device_expired_delegate m_callback; // the timer's callback function
void * m_ptr; // the pointer parameter passed to the timer callback
// periodic timers only
attotime m_start_delay; // delay before the timer fires for the first time
attotime m_period; // period of repeated timer firings
INT32 m_param; // the integer parameter passed to the timer callback
// scanline timers only
const char * m_screen_tag; // the tag of the screen this timer tracks
screen_device * m_screen; // pointer to the screen device
UINT32 m_first_vpos; // the first vertical scanline position the timer fires on
UINT32 m_increment; // the number of scanlines between firings
// internal state
emu_timer * m_timer; // the backing timer
bool m_first_time; // indicates that the system is starting (scanline timers only)
};
//**************************************************************************
// GLOBAL VARIABLES
//**************************************************************************
extern const device_type TIMER;
#endif /* __TIMER_H__ */
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