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Better handling for cpu_boost(). Small buffering fix.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@6647 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Miika Pekkarinen 2005-06-10 10:58:45 +00:00
parent b945fe84aa
commit 2ed0b195be
3 changed files with 28 additions and 20 deletions
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28
firmware/pcm_playback.c
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@ -99,15 +99,6 @@ static void dma_start(const void *addr, long size)
DCR0 = DMA_INT | DMA_EEXT | DMA_CS | DMA_SINC | DMA_START;
}
/* Stops the DMA transfer and interrupt */
static void dma_stop(void)
{
pcm_playing = false;
/* Reset the FIFO */
IIS2CONFIG = 0x800;
}
void pcm_boost(bool state)
{
static bool boost_state = false;
@ -121,6 +112,16 @@ void pcm_boost(bool state)
}
}
/* Stops the DMA transfer and interrupt */
static void dma_stop(void)
{
pcm_playing = false;
/* Reset the FIFO */
IIS2CONFIG = 0x800;
pcm_boost(false);
}
/* set volume of the main channel */
void pcm_set_volume(int volume)
{
@ -385,6 +386,7 @@ bool pcm_is_lowdata(void)
void pcm_crossfade_start(void)
{
//logf("cf:%d", audiobuffer_free / CHUNK_SIZE);
if (audiobuffer_free > CHUNK_SIZE * 4 || !crossfade_enabled) {
return ;
}
@ -493,6 +495,7 @@ void pcm_play_init(void)
pcmbuf_read_index = 0;
pcmbuf_write_index = 0;
pcmbuf_unplayed_bytes = 0;
crossfade_enabled = false;
pcm_play_set_watermark(PCM_WATERMARK, pcm_watermark_callback);
/* Play a small chunk of zeroes to initialize the playback system. */
@ -501,9 +504,7 @@ void pcm_play_init(void)
memset(&audiobuffer[0], 0, audiobuffer_pos);
pcm_play_add_chunk(&audiobuffer[0], audiobuffer_pos, NULL);
pcm_play_start();
cpu_boost(false);
crossfade_enabled = false;
}
void pcm_crossfade_enable(bool on_off)
@ -511,6 +512,11 @@ void pcm_crossfade_enable(bool on_off)
crossfade_enabled = on_off;
}
bool pcm_is_crossfade_enabled(void)
{
return crossfade_enabled;
}
void pcm_play_start(void)
{
struct pcmbufdesc *desc = &pcmbuffers[pcmbuf_read_index];