FIFO

API for checking FIFO statuses More...

Files
file	fifo.h
	Macros to assess FIFO status.

Macros
#define	FIFO_STATUS   (*(volatile uint32_t 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

API for checking FIFO statuses

Macro Definition Documentation

FIFO_AICA

#define FIFO_AICA   (1 << 0) /** \brief AICA FIFO status mask. */

FIFO_BBA

#define FIFO_BBA   (1 << 1) /** \brief BBA FIFO status mask. */

FIFO_EXT2

#define FIFO_EXT2   (1 << 2) /** \brief EXT2 FIFO status mask. */

FIFO_EXTDEV

#define FIFO_EXTDEV   (1 << 3) /** \brief EXTDEV FIFO status mask. */

FIFO_G2

#define FIFO_G2   (1 << 4) /** \brief G2 FIFO status mask. */

Referenced by g2_lock().

FIFO_SH4

#define FIFO_SH4   (1 << 5) /** \brief SH4 FIFO status mask. */

Referenced by g2_lock().

FIFO_STATUS

#define FIFO_STATUS   (*(volatile uint32_t const *)0xa05f688c)

Address of the FIFO status register.

Accessing this value provides the current status of all FIFOs.

Referenced by g2_lock().