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// license:BSD-3-Clause
// copyright-holders:Ernesto Corvi
#ifndef MAME_SOUND_8950INTF_H
#define MAME_SOUND_8950INTF_H
#pragma once
#include "dirom.h"
class y8950_device : public device_t,
public device_sound_interface,
public device_rom_interface<21>
{
public:
y8950_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
// configuration helpers
auto irq() { return m_irq_handler.bind(); }
auto keyboard_read() { return m_keyboard_read_handler.bind(); }
auto keyboard_write() { return m_keyboard_write_handler.bind(); }
auto io_read() { return m_io_read_handler.bind(); }
auto io_write() { return m_io_write_handler.bind(); }
u8 read(offs_t offset);
void write(offs_t offset, u8 data);
u8 status_port_r();
u8 read_port_r();
void control_port_w(u8 data);
void write_port_w(u8 data);
protected:
// device-level overrides
virtual void device_start() override;
virtual void device_clock_changed() override;
virtual void device_stop() override;
virtual void device_reset() override;
virtual void rom_bank_updated() override;
virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override;
// sound stream update overrides
virtual void sound_stream_update(sound_stream &stream, std::vector<read_stream_view> const &inputs, std::vector<write_stream_view> &outputs) override;
private:
void irq_handler(int irq);
void timer_handler(int c, const attotime &period);
void update_request() { m_stream->update(); }
unsigned char port_handler_r() { return m_io_read_handler(0); }
void port_handler_w(unsigned char data) { m_io_write_handler(offs_t(0), data); }
unsigned char keyboard_handler_r() { return m_keyboard_read_handler(0); }
void keyboard_handler_w(unsigned char data) { m_keyboard_write_handler(offs_t(0), data); }
static uint8_t static_read_byte(device_t *param, offs_t offset) { return downcast<y8950_device *>(param)->read_byte(offset); }
static void static_write_byte(device_t *param, offs_t offset, uint8_t data) { return downcast<y8950_device *>(param)->space().write_byte(offset, data); }
static void static_irq_handler(device_t *param, int irq) { downcast<y8950_device *>(param)->irq_handler(irq); }
static void static_timer_handler(device_t *param, int c, const attotime &period) { downcast<y8950_device *>(param)->timer_handler(c, period); }
static void static_update_request(device_t *param, int interval) { downcast<y8950_device *>(param)->update_request(); }
static unsigned char static_port_handler_r(device_t *param) { return downcast<y8950_device *>(param)->port_handler_r(); }
static void static_port_handler_w(device_t *param, unsigned char data) { downcast<y8950_device *>(param)->port_handler_w(data); }
static unsigned char static_keyboard_handler_r(device_t *param) { return downcast<y8950_device *>(param)->keyboard_handler_r(); }
static void static_keyboard_handler_w(device_t *param, unsigned char data) { downcast<y8950_device *>(param)->keyboard_handler_w(data); }
// internal state
sound_stream * m_stream;
emu_timer * m_timer[2];
void * m_chip;
devcb_write_line m_irq_handler;
devcb_read8 m_keyboard_read_handler;
devcb_write8 m_keyboard_write_handler;
devcb_read8 m_io_read_handler;
devcb_write8 m_io_write_handler;
};
DECLARE_DEVICE_TYPE(Y8950, y8950_device)
#endif // MAME_SOUND_8950INTF_H
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