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// license:BSD-3-Clause
// copyright-holders:Aaron Giles
/***************************************************************************
williams.h
Functions to emulate general the various Williams/Midway sound cards.
****************************************************************************/
#include "machine/6821pia.h"
#include "cpu/m6809/m6809.h"
#include "sound/ym2151.h"
#include "sound/okim6295.h"
#include "sound/hc55516.h"
//**************************************************************************
// GLOBAL VARIABLES
//**************************************************************************
DECLARE_DEVICE_TYPE(WILLIAMS_CVSD_SOUND, williams_cvsd_sound_device)
DECLARE_DEVICE_TYPE(WILLIAMS_NARC_SOUND, williams_narc_sound_device)
DECLARE_DEVICE_TYPE(WILLIAMS_ADPCM_SOUND, williams_adpcm_sound_device)
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> williams_cvsd_sound_device
class williams_cvsd_sound_device : public device_t,
public device_mixer_interface
{
public:
// construction/destruction
williams_cvsd_sound_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock = 0);
// read/write
void write(u16 data);
DECLARE_WRITE_LINE_MEMBER(reset_write);
// internal communications
void bank_select_w(u8 data);
void cvsd_digit_clock_clear_w(u8 data);
void cvsd_clock_set_w(u8 data);
void williams_cvsd_map(address_map &map);
mc6809e_device *get_cpu() { return m_cpu; }
protected:
// device-level overrides
virtual void device_add_mconfig(machine_config &config) override;
virtual void device_start() override;
virtual void device_reset() override;
virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override;
private:
// devices
required_device<mc6809e_device> m_cpu;
required_device<pia6821_device> m_pia;
required_device<hc55516_device> m_hc55516;
required_memory_bank m_rombank;
// internal state
u8 m_talkback;
void talkback_w(u8 data);
};
// ======================> williams_narc_sound_device
class williams_narc_sound_device : public device_t,
public device_mixer_interface
{
public:
// construction/destruction
williams_narc_sound_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock = 0);
// read/write
u16 read();
void write(u16 data);
DECLARE_WRITE_LINE_MEMBER(reset_write);
// internal communications
void master_bank_select_w(u8 data);
void slave_bank_select_w(u8 data);
u8 command_r();
void command2_w(u8 data);
u8 command2_r();
void master_talkback_w(u8 data);
void master_sync_w(u8 data);
void slave_talkback_w(u8 data);
void slave_sync_w(u8 data);
void cvsd_digit_clock_clear_w(u8 data);
void cvsd_clock_set_w(u8 data);
void williams_narc_master_map(address_map &map);
void williams_narc_slave_map(address_map &map);
mc6809e_device *get_cpu() { return m_cpu[0]; }
protected:
// device-level overrides
virtual void device_add_mconfig(machine_config &config) override;
virtual void device_start() override;
virtual void device_reset() override;
virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override;
private:
// timer IDs
enum
{
TID_MASTER_COMMAND,
TID_SLAVE_COMMAND,
TID_SYNC_CLEAR
};
// devices
required_device_array<mc6809e_device, 2> m_cpu;
required_device<hc55516_device> m_hc55516;
required_memory_bank m_masterbank;
required_memory_bank m_slavebank;
// internal state
u8 m_latch;
u8 m_latch2;
u8 m_talkback;
u8 m_audio_sync;
u8 m_sound_int_state;
};
// ======================> williams_adpcm_sound_device
class williams_adpcm_sound_device : public device_t,
public device_mixer_interface
{
public:
// construction/destruction
williams_adpcm_sound_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock = 0);
// read/write
void write(u16 data);
DECLARE_WRITE_LINE_MEMBER(reset_write);
DECLARE_READ_LINE_MEMBER(irq_read);
// internal communications
void bank_select_w(u8 data);
void oki6295_bank_select_w(u8 data);
u8 command_r();
void talkback_w(u8 data);
void williams_adpcm_map(address_map &map);
void williams_adpcm_oki_map(address_map &map);
mc6809e_device *get_cpu() { return m_cpu; }
protected:
// timer IDs
enum
{
TID_COMMAND,
TID_IRQ_CLEAR
};
// device-level overrides
virtual void device_add_mconfig(machine_config &config) override;
virtual void device_start() override;
virtual void device_reset() override;
virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override;
private:
// devices
required_device<mc6809e_device> m_cpu;
required_memory_bank m_rombank;
required_memory_bank m_okibank;
// internal state
u8 m_latch;
u8 m_talkback;
u8 m_sound_int_state;
};
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