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-rw-r--r--src/devices/bus/vtech/memexp/floppy.h66
1 files changed, 66 insertions, 0 deletions
diff --git a/src/devices/bus/vtech/memexp/floppy.h b/src/devices/bus/vtech/memexp/floppy.h
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+++ b/src/devices/bus/vtech/memexp/floppy.h
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+// license:GPL-2.0+
+// copyright-holders:Dirk Best, Olivier Galibert
+/***************************************************************************
+
+ VTech Laser/VZ Floppy Controller Cartridge
+
+ Laser DD 20
+ Dick Smith Electronics X-7304
+
+***************************************************************************/
+
+#pragma once
+
+#ifndef __VTECH_MEMEXP_FLOPPY_H__
+#define __VTECH_MEMEXP_FLOPPY_H__
+
+#include "emu.h"
+#include "memexp.h"
+#include "imagedev/floppy.h"
+
+
+//**************************************************************************
+// TYPE DEFINITIONS
+//**************************************************************************
+
+// ======================> floppy_controller_device
+
+class floppy_controller_device : public device_t, public device_memexp_interface
+{
+public:
+ // construction/destruction
+ floppy_controller_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
+
+ DECLARE_ADDRESS_MAP(map, 8);
+
+ DECLARE_WRITE8_MEMBER(latch_w);
+ DECLARE_READ8_MEMBER(shifter_r);
+ DECLARE_READ8_MEMBER(rd_r);
+ DECLARE_READ8_MEMBER(wpt_r);
+
+protected:
+ virtual const rom_entry *device_rom_region() const;
+ virtual machine_config_constructor device_mconfig_additions() const;
+ virtual void device_start();
+ virtual void device_reset();
+
+ required_device<memexp_slot_device> m_memexp;
+ required_device<floppy_connector> m_floppy0, m_floppy1;
+ floppy_image_device *m_floppy;
+
+ UINT8 m_latch, m_shifter;
+ bool m_latching_inverter;
+ int m_current_cyl;
+ attotime m_last_latching_inverter_update_time;
+ attotime m_write_start_time, m_write_buffer[32];
+ int m_write_position;
+
+ void index_callback(floppy_image_device *floppy, int state);
+ void update_latching_inverter();
+ void flush_writes(bool keep_margin = false);
+};
+
+// device type definition
+extern const device_type FLOPPY_CONTROLLER;
+
+#endif // __VTECH_MEMEXP_FLOPPY_H__