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Sansa AMS: disable I2SOUT clocks when playback is stopped

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19343 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Rafaël Carré 2008-12-04 22:54:02 +00:00
parent 6aa807d321
commit 3e4f3fe70e
1 changed files with 8 additions and 2 deletions
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10
firmware/target/arm/as3525/pcm-as3525.c
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@ -66,6 +66,9 @@ static void play_start_pcm(void)
dma_size -= size; dma_size -= size;
dma_start_addr += size; dma_start_addr += size;
CGU_PERI |= CGU_I2SOUT_APB_CLOCK_ENABLE;
CGU_AUDIO |= (1<<11);
dma_enable_channel(1, (void*)addr, (void*)I2SOUT_DATA, DMA_PERI_I2SOUT, dma_enable_channel(1, (void*)addr, (void*)I2SOUT_DATA, DMA_PERI_I2SOUT,
DMAC_FLOWCTRL_DMAC_MEM_TO_PERI, true, false, size >> 2, DMA_S1, DMAC_FLOWCTRL_DMAC_MEM_TO_PERI, true, false, size >> 2, DMA_S1,
dma_callback); dma_callback);
@ -98,6 +101,9 @@ void pcm_play_dma_stop(void)
{ {
dma_disable_channel(1); dma_disable_channel(1);
dma_size = 0; dma_size = 0;
CGU_PERI &= ~CGU_I2SOUT_APB_CLOCK_ENABLE;
CGU_AUDIO &= ~(1<<11);
} }
void pcm_play_dma_pause(bool pause) void pcm_play_dma_pause(bool pause)
@ -112,8 +118,8 @@ void pcm_play_dma_init(void)
{ {
CGU_PERI |= CGU_I2SOUT_APB_CLOCK_ENABLE; CGU_PERI |= CGU_I2SOUT_APB_CLOCK_ENABLE;
/* enable I2SO_MCLK, clock source PLLA, minimal frequency */ /* clock source PLLA, minimal frequency */
CGU_AUDIO |= (1<<11) | (511<<2) | (1<<0); CGU_AUDIO |= (511<<2) | (1<<0);
I2SOUT_CONTROL |= (1<<6) ; /* enable dma */ I2SOUT_CONTROL |= (1<<6) ; /* enable dma */
I2SOUT_CONTROL |= (1<<3) ; /* stereo */ I2SOUT_CONTROL |= (1<<3) ; /* stereo */