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-rw-r--r--src/mess/machine/egret.h117
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