/*
 * 86Box	A hypervisor and IBM PC system emulator that specializes in
 *		running old operating systems and software designed for IBM
 *		PC systems and compatibles from 1981 through fairly recent
 *		system designs based on the PCI bus.
 *
 *		This file is part of the 86Box distribution.
 *
  *		Definitions for the generic PIIX4-compatible SMBus host controller.
 *
 *
 *
 * Authors:	RichardG, <richardg867@gmail.com>
 *
 *		Copyright 2020 RichardG.
 */
#ifndef EMU_SMBUS_PIIX4_H
# define EMU_SMBUS_PIIX4_H


#define SMBUS_PIIX4_BLOCK_DATA_SIZE	32


typedef struct
{
    uint16_t	io_base;
    uint8_t	stat, next_stat, ctl, cmd, addr,
		data0, data1,
		index,
		data[SMBUS_PIIX4_BLOCK_DATA_SIZE];
    pc_timer_t	response_timer;
} smbus_piix4_t;


extern void	smbus_piix4_remap(smbus_piix4_t *dev, uint16_t new_io_base, uint8_t enable);


#ifdef EMU_DEVICE_H
extern const device_t piix4_smbus_device;
#endif


#endif	/*EMU_SMBUS_PIIX4_H*/