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/***************************************************************************
Z80 PIO implementation
Copyright Nicola Salmoria and the MAME Team.
Visit http://mamedev.org for licensing and usage restrictions.
***************************************************************************/
#ifndef __Z80PIO_H__
#define __Z80PIO_H__
/***************************************************************************
TYPE DEFINITIONS
***************************************************************************/
typedef struct _z80pio_interface z80pio_interface;
struct _z80pio_interface
{
void (*intr)(const device_config *device, int which); /* callback when change interrupt status */
read8_device_func portAread; /* port A read callback */
read8_device_func portBread; /* port B read callback */
write8_device_func portAwrite; /* port A write callback */
write8_device_func portBwrite; /* port B write callback */
void (*rdyA)(int data); /* portA ready active callback (do not support yet)*/
void (*rdyB)(int data); /* portB ready active callback (do not support yet)*/
};
/***************************************************************************
DEVICE CONFIGURATION MACROS
***************************************************************************/
#define MDRV_Z80PIO_ADD(_tag, _intrf) \
MDRV_DEVICE_ADD(_tag, Z80PIO) \
MDRV_DEVICE_CONFIG(_intrf)
#define MDRV_Z80PIO_REMOVE(_tag) \
MDRV_DEVICE_REMOVE(_tag, Z80PIO)
/***************************************************************************
CONTROL REGISTER READ/WRITE
***************************************************************************/
WRITE8_DEVICE_HANDLER( z80pio_c_w );
READ8_DEVICE_HANDLER( z80pio_c_r );
/***************************************************************************
DATA REGISTER READ/WRITE
***************************************************************************/
WRITE8_DEVICE_HANDLER( z80pio_d_w );
READ8_DEVICE_HANDLER( z80pio_d_r );
/***************************************************************************
PORT I/O
***************************************************************************/
WRITE8_DEVICE_HANDLER( z80pio_p_w );
READ8_DEVICE_HANDLER( z80pio_p_r );
/***************************************************************************
STROBE STATE MANAGEMENT
***************************************************************************/
void z80pio_astb_w(const device_config *device, int state);
void z80pio_bstb_w(const device_config *device, int state);
/***************************************************************************
READ/WRITE HANDLERS
***************************************************************************/
READ8_DEVICE_HANDLER(z80pio_r);
WRITE8_DEVICE_HANDLER(z80pio_w);
/* ----- device interface ----- */
#define Z80PIO DEVICE_GET_INFO_NAME(z80pio)
DEVICE_GET_INFO( z80pio );
#endif
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