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// license:BSD-3-Clause
// copyright-holders:AJR
/***************************************************************************
Kawasaki Steel (Kawatetsu) KP63(A) Timer/Counter
***************************************************************************/
#ifndef MAME_CPU_Z80_KP63_H
#define MAME_CPU_Z80_KP63_H
#pragma once
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
class kp63_device : public device_t
{
public:
// callback configuration
template <int N> auto outp_callback() { return m_out_pulse_callback[N].bind(); }
template <int N> auto outs_callback() { return m_out_strobe_callback[N].bind(); }
// register interface
u8 read(offs_t offset);
void write(offs_t offset, u8 data);
// input line interface
template <int N> void gate_w(int state) { write_gate(N, state); }
protected:
// construction/destruction
kp63_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, u32 clock, u8 num_counters, u8 mode_mask);
// device_t implementation
virtual void device_start() override ATTR_COLD;
virtual void device_reset() override ATTR_COLD;
private:
static const char *const s_count_modes[4];
// timer callbacks
template <int N> TIMER_CALLBACK_MEMBER(timer_expired);
template <int N> TIMER_CALLBACK_MEMBER(strobe_off);
template <int N> TIMER_CALLBACK_MEMBER(pwm_off);
// internal helpers
void timer_pulse(unsigned n);
void timer_reload(unsigned n);
void timer_resume_count(unsigned n);
u16 timer_get_count(unsigned n) const;
void write_gate(unsigned n, bool state);
// callback objects
devcb_write_line::array<4> m_out_pulse_callback;
devcb_write_line::array<4> m_out_strobe_callback;
// constant parameters
const u8 c_num_counters;
const u8 c_mode_mask;
// internal timers
emu_timer *m_timer[4];
emu_timer *m_strobe_timer[4];
emu_timer *m_pwm_timer[4];
// internal state
u16 m_cr[4];
u16 m_last_count[4];
u8 m_count_tmp[4];
u8 m_status[4];
u8 m_rw_seq;
u8 m_timer_started;
u8 m_gate_input;
};
class kp63_3channel_device : public kp63_device
{
public:
// device type constructor
kp63_3channel_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock);
};
class kp63a_device : public kp63_device
{
public:
// device type constructor
kp63a_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock);
};
// device type declarations
DECLARE_DEVICE_TYPE(KP63_3CHANNEL, kp63_3channel_device)
DECLARE_DEVICE_TYPE(KP63A, kp63a_device)
#endif // MAME_CPU_Z80_KP63_H
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