diff options
Diffstat (limited to 'firmware/target/arm/s3c2440/mini2440')
| -rw-r--r-- | firmware/target/arm/s3c2440/mini2440/pcm-mini2440.c | 34 |
1 files changed, 13 insertions, 21 deletions
diff --git a/firmware/target/arm/s3c2440/mini2440/pcm-mini2440.c b/firmware/target/arm/s3c2440/mini2440/pcm-mini2440.c index 486a235614..30db29c42c 100644 --- a/firmware/target/arm/s3c2440/mini2440/pcm-mini2440.c +++ b/firmware/target/arm/s3c2440/mini2440/pcm-mini2440.c @@ -254,35 +254,27 @@ void pcm_play_dma_pause(bool pause) void fiq_handler(void) { - static unsigned char *start; - static size_t size; - register pcm_more_callback_type get_more; /* No stack for this */ + static void *start; + static size_t size; /* clear any pending interrupt */ SRCPND = DMA2_MASK; /* Buffer empty. Try to get more. */ - get_more = pcm_callback_for_more; - size = 0; + pcm_play_get_more_callback(&start, &size); - if (get_more == NULL || (get_more(&start, &size), size == 0)) - { - /* Callback missing or no more DMA to do */ - pcm_play_dma_stop(); - pcm_play_dma_stopped_callback(); - } - else - { - /* Flush any pending cache writes */ - clean_dcache_range(start, size); + if (size == 0) + return; - /* set the new DMA values */ - DCON2 = DMA_CONTROL_SETUP | (size >> 1); - DISRC2 = (unsigned int)start + 0x30000000; + /* Flush any pending cache writes */ + clean_dcache_range(start, size); - /* Re-Activate the channel */ - DMASKTRIG2 = 0x2; - } + /* set the new DMA values */ + DCON2 = DMA_CONTROL_SETUP | (size >> 1); + DISRC2 = (unsigned int)start + 0x30000000; + + /* Re-Activate the channel */ + DMASKTRIG2 = 0x2; } size_t pcm_get_bytes_waiting(void) |