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-rw-r--r--src/mess/machine/comx_fd.h82
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diff --git a/src/mess/machine/comx_fd.h b/src/mess/machine/comx_fd.h
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+/**********************************************************************
+
+ COMX-35 Disk Controller Card emulation
+
+ Copyright MESS Team.
+ Visit http://mamedev.org for licensing and usage restrictions.
+
+**********************************************************************/
+
+#pragma once
+
+#ifndef __COMX_FD__
+#define __COMX_FD__
+
+
+#include "emu.h"
+#include "formats/basicdsk.h"
+#include "formats/comx35_dsk.h"
+#include "imagedev/flopdrv.h"
+#include "machine/comxexp.h"
+#include "machine/wd17xx.h"
+
+
+
+//**************************************************************************
+// TYPE DEFINITIONS
+//**************************************************************************
+
+// ======================> comx_fd_device
+
+class comx_fd_device : public device_t,
+ public device_comx_expansion_card_interface
+{
+public:
+ // construction/destruction
+ comx_fd_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;
+
+ // not really public
+ DECLARE_WRITE_LINE_MEMBER( intrq_w );
+ DECLARE_WRITE_LINE_MEMBER( drq_w );
+
+protected:
+ // device-level overrides
+ virtual void device_start();
+ virtual void device_reset();
+ virtual void device_config_complete() { m_shortname = "comx_fd"; }
+
+ // device_comx_expansion_card_interface overrides
+ virtual void comx_ds_w(int state);
+ virtual void comx_q_w(int state);
+ virtual UINT8 comx_mrd_r(offs_t offset, int *extrom);
+ virtual UINT8 comx_io_r(offs_t offset);
+ virtual void comx_io_w(offs_t offset, UINT8 data);
+
+private:
+ inline void update_ef4();
+
+ // internal state
+ required_device<device_t> m_fdc;
+ required_device<device_t> m_floppy0;
+ required_device<device_t> m_floppy1;
+
+ // floppy state
+ int m_ds; // device select
+ UINT8 *m_rom;
+ int m_q; // FDC register select
+ int m_addr; // FDC address
+ int m_intrq; // interrupt request
+ int m_drq; // data request
+ int m_disb; // data request disable
+};
+
+
+// device type definition
+extern const device_type COMX_FD;
+
+
+#endif