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Fixed a crash with pcm audio pausing. This should prevent many

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crashes from happening.


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@6954 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Miika Pekkarinen 2005-06-30 20:02:56 +00:00
parent f2af800fcb
commit 87d4d1203c
1 changed files with 10 additions and 2 deletions
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12
firmware/pcm_playback.c
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@ -137,6 +137,7 @@ static void dma_stop(void)
{
pcm_playing = false;
DCR0 = 0;
/* Reset the FIFO */
IIS2CONFIG = 0x800;
}
@ -260,12 +261,19 @@ void pcm_play_pause(bool play)
{
if(pcm_paused && play && pcmbuf_unplayed_bytes)
{
logf("unpause");
/* Reset chunk size so dma has enough data to fill the fifo. */
SAR0 = (unsigned long)next_start;
BCR0 = next_size;
/* Enable the FIFO and force one write to it */
IIS2CONFIG = (pcm_freq << 12) | 0x300;
DCR0 |= DMA_START;
DCR0 |= DMA_EEXT | DMA_START;
}
else if(!pcm_paused && !play)
{
logf("pause");
/* Disable DMA peripheral request. */
DCR0 &= ~DMA_EEXT;
IIS2CONFIG = 0x800;
}
pcm_paused = !play;
@ -283,7 +291,7 @@ void DMA0(void)
int res = DSR0;
DSR0 = 1; /* Clear interrupt */
/* Stop on error */
if(res & 0x70)
{