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// license:BSD-3-Clause
// copyright-holders:Aaron Giles
/***************************************************************************
Atari CAGE Audio Board
****************************************************************************/
#ifndef MAME_AUDIO_CAGE_H
#define MAME_AUDIO_CAGE_H
#pragma once
#include "machine/gen_latch.h"
#include "machine/timer.h"
#include "sound/dmadac.h"
#define CAGE_IRQ_REASON_DATA_READY (1)
#define CAGE_IRQ_REASON_BUFFER_EMPTY (2)
#define MCFG_ATARI_CAGE_IRQ_CALLBACK(_write) \
devcb = &downcast<atari_cage_device &>(*device).set_irqhandler_callback(DEVCB_##_write);
#define MCFG_ATARI_CAGE_SPEEDUP(_speedup) \
downcast<atari_cage_device &>(*device).set_speedup(_speedup);
class atari_cage_device : public device_t
{
public:
// construction/destruction
atari_cage_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
void set_speedup(offs_t speedup) { m_speedup = speedup; }
template <class Object> devcb_base &set_irqhandler_callback(Object &&cb) { return m_irqhandler.set_callback(std::forward<Object>(cb)); }
void reset_w(int state);
uint16_t main_r();
void main_w(uint16_t data);
uint16_t control_r();
void control_w(uint16_t data);
void update_dma_state(address_space &space);
void update_timer(int which);
void update_serial();
READ32_MEMBER( tms32031_io_r );
WRITE32_MEMBER( tms32031_io_w );
void update_control_lines();
READ32_MEMBER( cage_from_main_r );
WRITE32_MEMBER( cage_from_main_ack_w );
WRITE32_MEMBER( cage_to_main_w );
READ32_MEMBER( cage_io_status_r );
TIMER_CALLBACK_MEMBER( cage_deferred_w );
WRITE32_MEMBER( speedup_w );
void cage_map(address_map &map);
protected:
atari_cage_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_add_mconfig(machine_config &config) override;
TIMER_DEVICE_CALLBACK_MEMBER( dma_timer_callback );
TIMER_DEVICE_CALLBACK_MEMBER( cage_timer_callback );
private:
required_shared_ptr<uint32_t> m_cageram;
cpu_device *m_cpu;
required_device<generic_latch_16_device> m_soundlatch;
attotime m_cpu_h1_clock_period;
uint8_t m_cpu_to_cage_ready;
uint8_t m_cage_to_cpu_ready;
devcb_write8 m_irqhandler;
attotime m_serial_period_per_word;
uint8_t m_dma_enabled;
uint8_t m_dma_timer_enabled;
timer_device *m_dma_timer;
uint8_t m_timer_enabled[2];
timer_device *m_timer[2];
uint32_t m_tms32031_io_regs[0x100];
uint16_t m_from_main;
uint16_t m_control;
uint32_t *m_speedup_ram;
dmadac_sound_device *m_dmadac[4];
offs_t m_speedup;
};
// device type definition
DECLARE_DEVICE_TYPE(ATARI_CAGE, atari_cage_device)
class atari_cage_seattle_device : public atari_cage_device
{
public:
// construction/destruction
atari_cage_seattle_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
void cage_map_seattle(address_map &map);
protected:
// optional information overrides
virtual void device_add_mconfig(machine_config &config) override;
};
// device type definition
DECLARE_DEVICE_TYPE(ATARI_CAGE_SEATTLE, atari_cage_seattle_device)
#endif // MAME_AUDIO_CAGE_H
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