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pcm: Further cleanup of unused bits of the PCM ACPI:

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* pcm_get_bytes_remaining()
 * pcm_calculate_peaks()
 * pcm_get_peak_buffer()

Nothing in-tree uses these at all (except for the lua plugin wrapper)

Change-Id: I971b7beed6760250c8b1ce58f401a601e1e2d585
This commit is contained in:
Solomon Peachy 2020-11-11 23:20:19 -05:00
parent 1a68856f52
commit 388adff3cc
29 changed files with 5 additions and 231 deletions
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24
firmware/target/arm/imx31/gigabeat-s/pcm-gigabeat-s.c
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@ -224,30 +224,6 @@ void pcm_play_dma_stop(void)
play_stop_pcm();
}
/* Return the number of bytes waiting - full L-R sample pairs only */
size_t pcm_get_bytes_waiting(void)
{
static unsigned long dsa NOCACHEBSS_ATTR;
long offs, size;
int oldstatus;
/* read burst dma source address register in channel context */
sdma_read_words(&dsa, CHANNEL_CONTEXT_ADDR(DMA_PLAY_CH_NUM)+0x0b, 1);
oldstatus = disable_irq_save();
offs = dsa - (unsigned long)dma_play_bd.buf_addr;
size = dma_play_bd.mode.count;
restore_irq(oldstatus);
/* Be addresses are coherent (no buffer change during read) */
if (offs >= 0 && offs < size)
{
return (size - offs) & ~3;
}
return 0;
}
/* Return a pointer to the samples and the number of them in *count */
const void * pcm_play_dma_get_peak_buffer(int *count)
{