osAiSetNextBuffer.c File Reference

#include "libultra_internal.h"
#include "osAi.h"
#include "hardware.h"

Include dependency graph for osAiSetNextBuffer.c:

Functions
s32	osAiSetNextBuffer (void *buff, u32 len)

Variables
u8	hdwrBugFlag = 0

Function Documentation

osAiSetNextBuffer()

s32 osAiSetNextBuffer	(	void *	buff,
		u32	len )

It is worth noting that a previous hardware bug has been fixed by a software patch in osAiSetNextBuffer. This bug occurred when the address of the end of the buffer specified by osAiSetNextBuffer was at a specific value. This value occurred when the following was true:

(vaddr + nbytes) & 0x00003FFF == 0x00002000

(when the buffer ends with address of lower 14 bits 0x2000) In this case, the DMA transfer does not complete successfully. This can cause clicks and pops in the audio output. This bug no longer requires special handling by the application because it is now patched by osAiSetNextBuffer.

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Variable Documentation

hdwrBugFlag

u8 hdwrBugFlag = 0