/**********************************************************************

	PC-style floppy disk controller emulation

**********************************************************************/

#ifndef PC_FDC_H
#define PC_FDC_H

#include "driver.h"
#include "machine/nec765.h"

/* interface has been seperated, so that it can be used in the super i/o chip */

#define PC_FDC_STATUS_REGISTER_A 0
#define PC_FDC_STATUS_REGISTER_B 1
#define PC_FDC_DIGITAL_OUTPUT_REGISTER 2
#define PC_FDC_TAPE_DRIVE_REGISTER 3
#define PC_FDC_MAIN_STATUS_REGISTER 4
#define PC_FDC_DATA_RATE_REGISTER 4
#define PC_FDC_DATA_REGISTER 5
#define PC_FDC_RESERVED_REGISTER 6
#define PC_FDC_DIGITIAL_INPUT_REGISTER 7
#define PC_FDC_CONFIGURATION_CONTROL_REGISTER 8

/* main interface */
struct pc_fdc_interface
{
	NEC765_VERSION nec765_type;
	void (*pc_fdc_interrupt)(int);
	void (*pc_fdc_dma_drq)(int,int);
	mess_image *(*get_image)(int floppy_index);
};


void pc_fdc_init(const struct pc_fdc_interface *iface);
void pc_fdc_set_tc_state(int state);
int	pc_fdc_dack_r(void);
void pc_fdc_dack_w(int);

READ8_HANDLER(pc_fdc_r);
WRITE8_HANDLER(pc_fdc_w);

READ16_HANDLER(pc16le_fdc_r);
WRITE16_HANDLER(pc16le_fdc_w);

READ32_HANDLER(pc32le_fdc_r);
WRITE32_HANDLER(pc32le_fdc_w);

READ64_HANDLER(pc64be_fdc_r);
WRITE64_HANDLER(pc64be_fdc_w);

#endif /* PC_FDC_H */