// license: BSD-3-Clause
// copyright-holders: Dirk Best
/***************************************************************************
ADC0844
A/D Converter With Multiplexer Options
___ ___
/RD 1 |* u | 20 VCC
/CS 2 | | 19 /WR
CH1 3 | | 18 /INTR
CH2 4 | | 17 DB0/MA0
CH3 5 | | 16 DB1/MA1
CH4 6 | | 15 DB2/MA2
AGND 7 | | 14 DB3/MA3
VREF 8 | | 13 DB4
DB7 9 | | 12 DB5
DGND 10 |_______| 11 DB6
***************************************************************************/
#ifndef MAME_DEVICES_MACHINE_ADC0844_H
#define MAME_DEVICES_MACHINE_ADC0844_H
#pragma once
//**************************************************************************
// INTERFACE CONFIGURATION MACROS
//**************************************************************************
#define MCFG_ADC0844_ADD(_tag) \
MCFG_DEVICE_ADD(_tag, ADC0844, 0)
#define MCFG_ADC0844_INTR_CB(_devcb) \
downcast<adc0844_device &>(*device).set_intr_callback(DEVCB_##_devcb);
#define MCFG_ADC0844_CH1_CB(_devcb) \
downcast<adc0844_device &>(*device).set_ch1_callback(DEVCB_##_devcb);
#define MCFG_ADC0844_CH2_CB(_devcb) \
downcast<adc0844_device &>(*device).set_ch2_callback(DEVCB_##_devcb);
#define MCFG_ADC0844_CH3_CB(_devcb) \
downcast<adc0844_device &>(*device).set_ch3_callback(DEVCB_##_devcb);
#define MCFG_ADC0844_CH4_CB(_devcb) \
downcast<adc0844_device &>(*device).set_ch4_callback(DEVCB_##_devcb);
#define MCFG_ADC0848_ADD(_tag) \
MCFG_DEVICE_ADD(_tag, ADC0848, 0)
#define MCFG_ADC0848_INTR_CB MCFG_ADC0844_INTR_CB
#define MCFG_ADC0848_CH1_CB MCFG_ADC0844_CH1_CB
#define MCFG_ADC0848_CH2_CB MCFG_ADC0844_CH2_CB
#define MCFG_ADC0848_CH3_CB MCFG_ADC0844_CH3_CB
#define MCFG_ADC0848_CH4_CB MCFG_ADC0844_CH4_CB
#define MCFG_ADC0848_CH5_CB(_devcb) \
downcast<adc0848_device &>(*device).set_ch5_callback(DEVCB_##_devcb);
#define MCFG_ADC0848_CH6_CB(_devcb) \
downcast<adc0848_device &>(*device).set_ch6_callback(DEVCB_##_devcb);
#define MCFG_ADC0848_CH7_CB(_devcb) \
downcast<adc0848_device &>(*device).set_ch7_callback(DEVCB_##_devcb);
#define MCFG_ADC0848_CH8_CB(_devcb) \
downcast<adc0848_device &>(*device).set_ch8_callback(DEVCB_##_devcb);
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
class adc0844_device : public device_t
{
public:
// construction/destruction
adc0844_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
// configuration
template <class Object> devcb_base &set_intr_callback(Object &&cb) { return m_intr_cb.set_callback(std::forward<Object>(cb)); }
template <class Object> devcb_base &set_ch1_callback(Object &&cb) { return m_ch1_cb.set_callback(std::forward<Object>(cb)); }
template <class Object> devcb_base &set_ch2_callback(Object &&cb) { return m_ch2_cb.set_callback(std::forward<Object>(cb)); }
template <class Object> devcb_base &set_ch3_callback(Object &&cb) { return m_ch3_cb.set_callback(std::forward<Object>(cb)); }
template <class Object> devcb_base &set_ch4_callback(Object &&cb) { return m_ch4_cb.set_callback(std::forward<Object>(cb)); }
DECLARE_READ8_MEMBER(read);
virtual DECLARE_WRITE8_MEMBER(write);
protected:
adc0844_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock);
// device-level overrides
virtual void device_start() override;
virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override;
uint8_t clamp(int value);
// callbacks
devcb_write_line m_intr_cb;
devcb_read8 m_ch1_cb, m_ch2_cb, m_ch3_cb, m_ch4_cb;
emu_timer *m_conversion_timer;
// state
int m_channel;
uint8_t m_result;
};
class adc0848_device : public adc0844_device
{
public:
// construction/destruction
adc0848_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
// configuration
template <class Object> devcb_base &set_ch5_callback(Object &&cb) { return m_ch5_cb.set_callback(std::forward<Object>(cb)); }
template <class Object> devcb_base &set_ch6_callback(Object &&cb) { return m_ch6_cb.set_callback(std::forward<Object>(cb)); }
template <class Object> devcb_base &set_ch7_callback(Object &&cb) { return m_ch7_cb.set_callback(std::forward<Object>(cb)); }
template <class Object> devcb_base &set_ch8_callback(Object &&cb) { return m_ch8_cb.set_callback(std::forward<Object>(cb)); }
virtual DECLARE_WRITE8_MEMBER(write) override;
protected:
// device-level overrides
virtual void device_start() override;
virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override;
private:
devcb_read8 m_ch5_cb, m_ch6_cb, m_ch7_cb, m_ch8_cb;
};
// device type definition
DECLARE_DEVICE_TYPE(ADC0844, adc0844_device)
DECLARE_DEVICE_TYPE(ADC0848, adc0848_device)
#endif // MAME_DEVICES_MACHINE_ADC0844_H