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+/**********************************************************************
+
+ Commodore 1551 Single Disk Drive emulation
+
+ Copyright MESS Team.
+ Visit http://mamedev.org for licensing and usage restrictions.
+
+**********************************************************************/
+
+#pragma once
+
+#ifndef __C1551__
+#define __C1551__
+
+
+#include "emu.h"
+#include "cpu/m6502/m6502.h"
+#include "imagedev/flopdrv.h"
+#include "formats/d64_dsk.h"
+#include "formats/g64_dsk.h"
+#include "machine/64h156.h"
+#include "machine/6525tpi.h"
+#include "machine/pls100.h"
+#include "machine/plus4exp.h"
+
+
+
+//**************************************************************************
+// TYPE DEFINITIONS
+//**************************************************************************
+
+// ======================> c1551_device
+
+class c1551_device : public device_t,
+ public device_plus4_expansion_card_interface
+{
+public:
+ // construction/destruction
+ c1551_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;
+
+ // not really public
+ static void on_disk_change(device_image_interface &image);
+
+ DECLARE_READ8_MEMBER( port_r );
+ DECLARE_WRITE8_MEMBER( port_w );
+ DECLARE_READ8_MEMBER( tcbm_data_r );
+ DECLARE_WRITE8_MEMBER( tcbm_data_w );
+ DECLARE_READ8_MEMBER( yb_r );
+ DECLARE_WRITE8_MEMBER( yb_w );
+ DECLARE_READ8_MEMBER( tpi0_pc_r );
+ DECLARE_WRITE8_MEMBER( tpi0_pc_w );
+ DECLARE_READ8_MEMBER( tpi1_pa_r );
+ DECLARE_WRITE8_MEMBER( tpi1_pa_w );
+ DECLARE_READ8_MEMBER( tpi1_pb_r );
+ DECLARE_READ8_MEMBER( tpi1_pc_r );
+ DECLARE_WRITE8_MEMBER( tpi1_pc_w );
+
+protected:
+ // device-level overrides
+ virtual void device_config_complete() { m_shortname = "c1551"; }
+ virtual void device_start();
+ virtual void device_reset();
+ virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr);
+
+ // device_plus4_expansion_card_interface overrides
+ virtual UINT8 plus4_cd_r(address_space &space, offs_t offset, int ba, int cs0, int c1l, int c2l, int cs1, int c1h, int c2h);
+ virtual void plus4_cd_w(address_space &space, offs_t offset, UINT8 data, int ba, int cs0, int c1l, int c2l, int cs1, int c1h, int c2h);
+ virtual void plus4_breset_w(int state);
+
+private:
+ required_device<cpu_device> m_maincpu;
+ required_device<device_t> m_tpi0;
+ required_device<device_t> m_tpi1;
+ required_device<c64h156_device> m_ga;
+ required_device<legacy_floppy_image_device> m_image;
+
+ // TCBM bus
+ UINT8 m_tcbm_data; // data
+ int m_status; // status
+ int m_dav; // data valid
+ int m_ack; // acknowledge
+ int m_dev; // device number
+
+ // timers
+ emu_timer *m_irq_timer;
+};
+
+
+
+// device type definition
+extern const device_type C1551;
+
+
+
+#endif