fifo.h File Reference

Macros to assess FIFO status. More...

#include <sys/cdefs.h>

Go to the source code of this file.

Macros
#define	FIFO_STATUS   (*(vuint32 const *)0xa05f688c)
	Address of the FIFO status register.
FIFO Status Indicators
Note To determine the empty status of a specific FIFO, AND the desired FIFO status mask with the value returned by FIFO_STATUS. If the resulting value is non-zero, the FIFO is not empty. Otherwise, it is empty.
#define	FIFO_AICA   (1 << 0) /** \brief AICA FIFO status mask. */
#define	FIFO_BBA   (1 << 1) /** \brief BBA FIFO status mask. */
#define	FIFO_EXT2   (1 << 2) /** \brief EXT2 FIFO status mask. */
#define	FIFO_EXTDEV   (1 << 3) /** \brief EXTDEV FIFO status mask. */
#define	FIFO_G2   (1 << 4) /** \brief G2 FIFO status mask. */
#define	FIFO_SH4   (1 << 5) /** \brief SH4 FIFO status mask. */

Detailed Description

Macros to assess FIFO status.

This header provides a set of macros to facilitate checking the status of various FIFOs on the system.

Author

Andy Barajas