// license:BSD-3-Clause
// copyright-holders:R. Belmont
#ifndef MAME_MACHINE_EGRET_H
#define MAME_MACHINE_EGRET_H
#pragma once
#define USE_BUS_ADB (0)
#if USE_BUS_ADB
#include "bus/adb/adb.h"
#endif
//**************************************************************************
// MACROS / CONSTANTS
//**************************************************************************
#define EGRET_TAG "egret"
#define EGRET_341S0851 0x1100
#define EGRET_341S0850 0x2200
#define EGRET_344S0100 0x3300
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> egret_device
class egret_device : public device_t, public device_nvram_interface
{
public:
// construction/destruction
egret_device(const machine_config &mconfig, const char *tag, device_t *owner, int type)
: egret_device(mconfig, tag, owner, (uint32_t)0)
{
set_type(type);
}
egret_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
// inline configuration helpers
void set_type(int type) { rom_offset = type; }
// device_config_nvram_interface overrides
virtual void nvram_default() override;
virtual void nvram_read(emu_file &file) override;
virtual void nvram_write(emu_file &file) override;
uint8_t ddr_r(offs_t offset);
void ddr_w(offs_t offset, uint8_t data);
uint8_t ports_r(offs_t offset);
void ports_w(offs_t offset, uint8_t data);
uint8_t pll_r();
void pll_w(uint8_t data);
uint8_t timer_ctrl_r();
void timer_ctrl_w(uint8_t data);
uint8_t timer_counter_r();
void timer_counter_w(uint8_t data);
uint8_t onesec_r();
void onesec_w(uint8_t data);
uint8_t pram_r(offs_t offset);
void pram_w(offs_t offset, uint8_t data);
#if USE_BUS_ADB
void adb_w(int id, int state);
void adb_poweron_w(int id, int state);
void adb_change();
#endif
// interface routines
uint8_t get_xcvr_session() { return xcvr_session; }
void set_via_full(uint8_t val) { via_full = val; }
void set_sys_session(uint8_t val) { sys_session = val; }
uint8_t get_via_data() { return via_data; }
void set_via_data(uint8_t dat) { via_data = dat; }
uint8_t get_via_clock() { return via_clock; }
void set_adb_line(int linestate) { adb_in = (linestate == ASSERT_LINE) ? true : false; }
int rom_offset;
auto reset_callback() { return write_reset.bind(); }
auto linechange_callback() { return write_linechange.bind(); }
auto via_clock_callback() { return write_via_clock.bind(); }
auto via_data_callback() { return write_via_data.bind(); }
devcb_write_line write_reset, write_linechange;
devcb_write_line write_via_clock, write_via_data;
void egret_map(address_map &map);
protected:
// device-level overrides
virtual void device_start() override;
virtual void device_reset() override;
virtual void device_add_mconfig(machine_config &config) override;
virtual const tiny_rom_entry *device_rom_region() const override;
required_device<cpu_device> m_maincpu;
virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override;
private:
uint8_t ddrs[3];
uint8_t ports[3];
uint8_t pll_ctrl;
uint8_t timer_ctrl;
uint8_t timer_counter;
uint8_t onesec;
uint8_t xcvr_session, via_full, sys_session, via_data, via_clock, last_adb;
uint64_t last_adb_time;
bool egret_controls_power;
bool adb_in;
int reset_line;
int m_adb_dtime;
emu_timer *m_timer;
uint8_t pram[0x100], disk_pram[0x100];
bool pram_loaded;
#if USE_BUS_ADB
optional_device <adb_connector> m_adb_connector[2];
adb_device *m_adb_device[2];
bool m_adb_device_out[2];
bool m_adb_device_poweron[2];
bool m_adb_out;
#endif
void send_port(uint8_t offset, uint8_t data);
};
// device type definition
DECLARE_DEVICE_TYPE(EGRET, egret_device)
#endif // MAME_MACHINE_EGRET_H