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/**********************************************************************
Copyright (C) Antoine Mine' 2007
Motorola 6843 Floppy Disk Controller emulation.
**********************************************************************/
#ifndef MC6843_H
#define MC6843_H
class mc6843_device : public device_t
{
public:
mc6843_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
~mc6843_device() { global_free(m_token); }
// access to legacy token
void *token() const { assert(m_token != NULL); return m_token; }
protected:
// device-level overrides
virtual void device_config_complete();
virtual void device_start();
virtual void device_reset();
private:
// internal state
void *m_token;
};
extern const device_type MC6843;
/* ---------- configuration ------------ */
struct mc6843_interface
{
void ( * irq_func ) ( device_t *device, int state );
};
#define MCFG_MC6843_ADD(_tag, _intrf) \
MCFG_DEVICE_ADD(_tag, MC6843, 0) \
MCFG_DEVICE_CONFIG(_intrf)
#define MCFG_MC6843_REMOVE(_tag) \
MCFG_DEVICE_REMOVE(_tag)
/* ---------- functions ------------ */
extern DECLARE_READ8_DEVICE_HANDLER ( mc6843_r );
extern DECLARE_WRITE8_DEVICE_HANDLER ( mc6843_w );
extern void mc6843_set_drive ( device_t *device, int drive );
extern void mc6843_set_side ( device_t *device, int side );
extern void mc6843_set_index_pulse ( device_t *device, int index_pulse );
#endif
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