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Diffstat (limited to 'src/mess/machine/egret.h')
-rw-r--r-- | src/mess/machine/egret.h | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/src/mess/machine/egret.h b/src/mess/machine/egret.h new file mode 100644 index 00000000000..0d5581e32db --- /dev/null +++ b/src/mess/machine/egret.h @@ -0,0 +1,117 @@ +#pragma once + +#ifndef __EGRET_H__ +#define __EGRET_H__ + +#include "emu.h" + + + +//************************************************************************** +// MACROS / CONSTANTS +//************************************************************************** + +#define EGRET_TAG "egret" + +#define EGRET_341S0851 0x1100 +#define EGRET_341S0850 0x2200 +#define EGRET_344S0100 0x3300 + +//************************************************************************** +// INTERFACE CONFIGURATION MACROS +//************************************************************************** + +#define MCFG_EGRET_ADD(_type) \ + MCFG_DEVICE_ADD(EGRET_TAG, EGRET, 0) \ + MCFG_EGRET_TYPE(_type) + +#define MCFG_EGRET_REPLACE(_type) \ + MCFG_DEVICE_REPLACE(EGRET_TAG, EGRET, 0) \ + MCFG_EGRET_TYPE(_type) + +#define MCFG_EGRET_TYPE(_type) \ + egret_device::static_set_type(*device, _type); + +#define MCFG_EGRET_REMOVE() \ + MCFG_DEVICE_REMOVE(EGRET_TAG) + +//************************************************************************** +// 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, UINT32 clock); + + // inline configuration helpers + static void static_set_type(device_t &device, int type); + + // device_config_nvram_interface overrides + virtual void nvram_default(); + virtual void nvram_read(emu_file &file); + virtual void nvram_write(emu_file &file); + + DECLARE_READ8_MEMBER( ddr_r ); + DECLARE_WRITE8_MEMBER( ddr_w ); + DECLARE_READ8_MEMBER( ports_r ); + DECLARE_WRITE8_MEMBER( ports_w ); + DECLARE_READ8_MEMBER( pll_r ); + DECLARE_WRITE8_MEMBER( pll_w ); + DECLARE_READ8_MEMBER( timer_ctrl_r ); + DECLARE_WRITE8_MEMBER( timer_ctrl_w ); + DECLARE_READ8_MEMBER( timer_counter_r ); + DECLARE_WRITE8_MEMBER( timer_counter_w ); + DECLARE_READ8_MEMBER( onesec_r ); + DECLARE_WRITE8_MEMBER( onesec_w ); + DECLARE_READ8_MEMBER( pram_r ); + DECLARE_WRITE8_MEMBER( pram_w ); + + // interface routines + UINT8 get_xcvr_session() { return xcvr_session; } + void set_via_full(UINT8 val) { via_full = val; } + void set_sys_session(UINT8 val) { sys_session = val; } + UINT8 get_via_data() { return via_data; } + void set_via_data(UINT8 dat) { via_data = dat; } + UINT8 get_via_clock() { return via_clock; } + + int rom_offset; + +protected: + // device-level overrides + virtual void device_start(); + virtual void device_reset(); + virtual void device_config_complete() { m_shortname = "egret"; } + virtual machine_config_constructor device_mconfig_additions() const; + virtual const rom_entry *device_rom_region() const; + + required_device<cpu_device> m_maincpu; + + virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr); + +private: + UINT8 ddrs[3]; + UINT8 ports[3]; + UINT8 pll_ctrl; + UINT8 timer_ctrl; + UINT8 timer_counter; + UINT8 onesec; + UINT8 xcvr_session, via_full, sys_session, via_data, via_clock, last_adb; + UINT64 last_adb_time; + bool egret_controls_power; + bool adb_in; + int reset_line; + emu_timer *m_timer; + UINT8 pram[0x100], disk_pram[0x100]; + bool pram_loaded; + + void send_port(address_space &space, UINT8 offset, UINT8 data); +}; + +// device type definition +extern const device_type EGRET; + +#endif |