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Diffstat (limited to 'src/devices/bus/a2bus/a2hsscsi.h')
-rw-r--r--src/devices/bus/a2bus/a2hsscsi.h65
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diff --git a/src/devices/bus/a2bus/a2hsscsi.h b/src/devices/bus/a2bus/a2hsscsi.h
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+// license:BSD-3-Clause
+// copyright-holders:R. Belmont
+/*********************************************************************
+
+ a2hsscsi.h
+
+ Implementation of the Apple II High Speed SCSI Card
+
+*********************************************************************/
+
+#ifndef __A2BUS_HSSCSI__
+#define __A2BUS_HSSCSI__
+
+#include "emu.h"
+#include "a2bus.h"
+#include "machine/ncr5380n.h"
+
+//**************************************************************************
+// TYPE DEFINITIONS
+//**************************************************************************
+
+class a2bus_hsscsi_device:
+ public device_t,
+ public device_a2bus_card_interface
+{
+public:
+ // construction/destruction
+ a2bus_hsscsi_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock, const char *shortname, const char *source);
+ a2bus_hsscsi_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
+
+ // optional information overrides
+ virtual machine_config_constructor device_mconfig_additions() const;
+ virtual const rom_entry *device_rom_region() const;
+
+ required_device<ncr5380n_device> m_ncr5380;
+ required_device<nscsi_bus_device> m_scsibus;
+
+ DECLARE_WRITE_LINE_MEMBER( drq_w );
+
+protected:
+ virtual void device_start();
+ virtual void device_reset();
+
+ // overrides of standard a2bus slot functions
+ virtual UINT8 read_c0nx(address_space &space, UINT8 offset);
+ virtual void write_c0nx(address_space &space, UINT8 offset, UINT8 data);
+ virtual UINT8 read_cnxx(address_space &space, UINT8 offset);
+ virtual void write_cnxx(address_space &space, UINT8 offset, UINT8 data);
+ virtual UINT8 read_c800(address_space &space, UINT16 offset);
+ virtual void write_c800(address_space &space, UINT16 offset, UINT8 data);
+
+private:
+ UINT8 *m_rom;
+ UINT8 m_ram[8192]; // 8 banks of 1024 bytes
+ int m_rambank, m_rombank;
+ UINT8 m_drq;
+ UINT8 m_bank;
+ bool m_816block;
+ UINT8 m_c0ne, m_c0nf;
+};
+
+// device type definition
+extern const device_type A2BUS_HSSCSI;
+
+#endif /* __A2BUS_HSSCSI__ */