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Diffstat (limited to 'src/devices/bus/abcbus/lux21056.h')
-rw-r--r--src/devices/bus/abcbus/lux21056.h108
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diff --git a/src/devices/bus/abcbus/lux21056.h b/src/devices/bus/abcbus/lux21056.h
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+++ b/src/devices/bus/abcbus/lux21056.h
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+// license:BSD-3-Clause
+// copyright-holders:Curt Coder
+/**********************************************************************
+
+ Luxor 55 21056-00 Xebec Interface Host Adapter emulation
+
+*********************************************************************/
+
+#pragma once
+
+#ifndef __LUXOR_55_21056__
+#define __LUXOR_55_21056__
+
+#include "emu.h"
+#include "abcbus.h"
+#include "bus/scsi/scsi.h"
+#include "cpu/z80/z80.h"
+#include "cpu/z80/z80daisy.h"
+#include "machine/z80dma.h"
+
+
+
+//**************************************************************************
+// TYPE DEFINITIONS
+//**************************************************************************
+
+// ======================> luxor_55_21056_device
+
+class luxor_55_21056_device : public device_t,
+ public device_abcbus_card_interface
+{
+public:
+ // construction/destruction
+ luxor_55_21056_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
+
+ // optional information overrides
+ virtual const rom_entry *device_rom_region() const;
+ virtual machine_config_constructor device_mconfig_additions() const;
+ virtual ioport_constructor device_input_ports() const;
+
+ DECLARE_READ8_MEMBER( sasi_status_r );
+ DECLARE_WRITE8_MEMBER( stat_w );
+ DECLARE_READ8_MEMBER( out_r );
+ DECLARE_WRITE8_MEMBER( inp_w );
+ DECLARE_READ8_MEMBER( sasi_data_r );
+ DECLARE_WRITE8_MEMBER( sasi_data_w );
+ DECLARE_READ8_MEMBER( rdy_reset_r );
+ DECLARE_WRITE8_MEMBER( rdy_reset_w );
+ DECLARE_READ8_MEMBER( sasi_sel_r );
+ DECLARE_WRITE8_MEMBER( sasi_sel_w );
+ DECLARE_READ8_MEMBER( sasi_rst_r );
+ DECLARE_WRITE8_MEMBER( sasi_rst_w );
+
+ DECLARE_READ8_MEMBER( memory_read_byte );
+ DECLARE_WRITE8_MEMBER( memory_write_byte );
+ DECLARE_READ8_MEMBER( io_read_byte );
+ DECLARE_WRITE8_MEMBER( io_write_byte );
+
+ DECLARE_WRITE_LINE_MEMBER( write_sasi_req );
+ DECLARE_WRITE_LINE_MEMBER( write_sasi_io );
+ DECLARE_WRITE_LINE_MEMBER( write_sasi_cd );
+ DECLARE_WRITE_LINE_MEMBER( write_sasi_msg );
+ DECLARE_WRITE_LINE_MEMBER( write_sasi_bsy );
+
+protected:
+ // device-level overrides
+ virtual void device_start();
+ virtual void device_reset();
+
+ // device_abcbus_interface overrides
+ virtual void abcbus_cs(UINT8 data);
+ virtual UINT8 abcbus_inp();
+ virtual void abcbus_out(UINT8 data);
+ virtual UINT8 abcbus_stat();
+ virtual void abcbus_c1(UINT8 data);
+ virtual void abcbus_c3(UINT8 data);
+
+private:
+ void set_rdy(int state);
+
+ required_device<cpu_device> m_maincpu;
+ required_device<z80dma_device> m_dma;
+ required_device<SCSI_PORT_DEVICE> m_sasibus;
+ required_device<output_latch_device> m_sasi_data_out;
+ required_device<input_buffer_device> m_sasi_data_in;
+ required_ioport m_s1;
+
+ int m_cs;
+ int m_rdy;
+ int m_sasi_req;
+ int m_sasi_io;
+ int m_sasi_cd;
+ int m_sasi_msg;
+ int m_sasi_bsy;
+
+ UINT8 m_inp;
+ UINT8 m_out;
+ UINT8 m_stat;
+ UINT8 m_sasi_data;
+};
+
+
+// device type definition
+extern const device_type LUXOR_55_21056;
+
+
+
+#endif