// 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 "cpu/tms32031/tms32031.h"
#include "machine/gen_latch.h"
#include "machine/timer.h"
#include "sound/dmadac.h"
class atari_cage_device : public device_t
{
public:
enum
{
CAGE_IRQ_REASON_DATA_READY = 0x01,
CAGE_IRQ_REASON_BUFFER_EMPTY = 0x02
};
// 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; }
auto irq_handler() { return m_irqhandler.bind(); }
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);
TIMER_CALLBACK_MEMBER( cage_deferred_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 );
required_device<tms32031_device> m_cpu;
void update_dma_state();
void update_timer(int which);
void update_serial();
uint32_t tms32031_io_r(offs_t offset);
void tms32031_io_w(offs_t offset, uint32_t data, uint32_t mem_mask = ~0);
void update_control_lines();
uint32_t cage_from_main_r();
void cage_from_main_ack_w(uint32_t data);
void cage_to_main_w(uint32_t data);
uint32_t cage_io_status_r();
void speedup_w(offs_t offset, uint32_t data, uint32_t mem_mask = ~0);
private:
required_shared_ptr<uint32_t> m_cageram;
required_device<generic_latch_16_device> m_soundlatch;
required_device<timer_device> m_dma_timer;
required_device_array<timer_device, 2> m_timer;
optional_device_array<dmadac_sound_device, 4> m_dmadac;
required_memory_bank m_bootbank;
required_memory_bank m_mainbank;
required_memory_region m_bootrom;
required_memory_region m_mainrom;
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;
uint8_t m_timer_enabled[2];
uint32_t m_tms32031_io_regs[0x100];
uint16_t m_from_main;
uint16_t m_control;
uint32_t *m_speedup_ram;
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