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Flush DMA buffers for DMA

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11905 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Greg White 2007-01-04 11:36:25 +00:00
parent 6eb81e2dc8
commit dd7b75bd2c
1 changed files with 18 additions and 11 deletions
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7
firmware/target/arm/gigabeat/meg-fx/pcm-meg-fx.c
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@ -22,6 +22,7 @@
#include "audio.h" #include "audio.h"
#include "wm8975.h" #include "wm8975.h"
#include "file.h" #include "file.h"
#include "mmu-meg-fx.h"
static int pcm_freq = HW_SAMPR_DEFAULT; /* 44.1 is default */ static int pcm_freq = HW_SAMPR_DEFAULT; /* 44.1 is default */
@ -61,6 +62,9 @@ void fiq(void)
if (p_size) if (p_size)
{ {
/* Flush any pending cache writes */
clean_dcache_range(p, p_size);
/* set the new DMA values */ /* set the new DMA values */
DCON2 = DMA_CONTROL_SETUP | (p_size >> 1); DCON2 = DMA_CONTROL_SETUP | (p_size >> 1);
DISRC2 = (int)p + 0x30000000; DISRC2 = (int)p + 0x30000000;
@ -152,6 +156,9 @@ void pcm_play_dma_start(const void *addr, size_t size)
/* unmask the DMA interrupt */ /* unmask the DMA interrupt */
INTMSK &= ~(1<<19); INTMSK &= ~(1<<19);
/* Flush any pending writes */
clean_dcache_range(addr, size);
/* Activate the channel */ /* Activate the channel */
DMASKTRIG2 = 0x2; DMASKTRIG2 = 0x2;