spu.h File Reference

Functions related to sound. More...

#include <sys/cdefs.h>
#include <arch/types.h>
#include <arch/memory.h>
#include <dc/g2bus.h>

Go to the source code of this file.

Macros
#define	SPU_RAM_BASE   0x00800000
	Sound ram address from the SH4 side.
#define	SPU_RAM_UNCACHED_BASE   (MEM_AREA_P2_BASE | SPU_RAM_BASE)

Typedefs
typedef g2_dma_callback_t	spu_dma_callback_t
	SPU DMA callback type.

Functions
void	spu_memload (uintptr_t to, void *from, size_t length)
	Copy a block of data to sound RAM.
void	spu_memload_sq (uintptr_t to, void *from, size_t length)
	Copy a block of data to sound RAM by using the Store Queues.
void	spu_memload_dma (uintptr_t to, void *from, size_t length)
	Copy a block of data to sound RAM by using DMA (or SQ on fails).
void	spu_memread (void *to, uintptr_t from, size_t length)
	Copy a block of data from sound RAM.
void	spu_memset (uintptr_t to, uint32_t what, size_t length)
	Set a block of sound RAM to the specified value.
void	spu_memset_sq (uintptr_t to, uint32_t what, size_t length)
	Set a block of sound RAM to the specified value.
int	spu_dma_transfer (void *from, uintptr_t dest, size_t length, int block, spu_dma_callback_t callback, void *cbdata)
	Copy a block of data from SH4 RAM to sound RAM via DMA.
void	spu_enable (void)
	Enable the SPU.
void	spu_disable (void)
	Disable the SPU.
void	spu_cdda_volume (int left_volume, int right_volume)
	Set CDDA volume.
void	spu_cdda_pan (int left_pan, int right_pan)
	Set CDDA panning.
void	spu_master_mixer (int volume, int stereo)
	Set master mixer settings.
int	spu_init (void)
	Initialize the SPU.
int	spu_shutdown (void)
	Shutdown the SPU.
void	spu_reset_chans (void)
	Reset SPU channels.

Detailed Description

Functions related to sound.

This file deals with memory transfers and the like for the sound hardware.

Author

Megan Potter

Ruslan Rostovtsev