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[ALSA] soc - ASoC 0.13 AT91xxxx DMA 

This patch updates the AT91xxxx audio DMA driver to the new API in ASoC
0.13.
Changes:-
o Updated to use new 0.13 data structures.
o Suspend and Resume now conditionally compiled.
o #include guard around at91-pcm.h header.

Signed-off-by: Frank Mandarino <fmandarino@endrelia.com>
Signed-off-by: Liam Girdwood <lg@opensource.wolfsonmicro.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
This commit is contained in:
Frank Mandarino 2007-02-02 17:19:24 +01:00 committed by Jaroslav Kysela
parent 171eb8f81d
commit 6297027629
2 changed files with 11 additions and 5 deletions
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7
sound/soc/at91/at91-pcm.c
View File

@ -125,7 +125,7 @@ static int at91_pcm_hw_params(struct snd_pcm_substream *substream,
snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer);
runtime->dma_bytes = params_buffer_bytes(params);
prtd->params = rtd->cpu_dai->dma_data;
prtd->params = rtd->dai->cpu_dai->dma_data;
prtd->params->dma_intr_handler = at91_pcm_dma_irq;
prtd->dma_buffer = runtime->dma_addr;
@ -363,6 +363,7 @@ static void at91_pcm_free_dma_buffers(struct snd_pcm *pcm)
}
}
#ifdef CONFIG_PM
static int at91_pcm_suspend(struct platform_device *pdev,
struct snd_soc_cpu_dai *dai)
{
@ -410,6 +411,10 @@ static int at91_pcm_resume(struct platform_device *pdev,
at91_ssc_write(params->ssc_base + AT91_PDC_PTCR, params->mask->pdc_enable);
return 0;
}
#else
#define at91_pcm_suspend NULL
#define at91_pcm_resume NULL
#endif
struct snd_soc_platform at91_soc_platform = {
.name = "at91-audio",

9
sound/soc/at91/at91-pcm.h
View File

@ -16,6 +16,9 @@
* published by the Free Software Foundation.
*/
#ifndef _AT91_PCM_H
#define _AT91_PCM_H
#include <asm/arch/hardware.h>
struct at91_ssc_periph {
@ -23,7 +26,6 @@ struct at91_ssc_periph {
u32 pid;
};
/*
* Registers and status bits that are required by the PCM driver.
*/
@ -44,7 +46,6 @@ struct at91_ssc_mask {
u32 pdc_disable; /* PDC recv/trans disable */
};
/*
* This structure, shared between the PCM driver and the interface,
* contains all information required by the PCM driver to perform the
@ -63,9 +64,9 @@ struct at91_pcm_dma_params {
void (*dma_intr_handler)(u32, struct snd_pcm_substream *);
};
extern struct snd_soc_cpu_dai at91_i2s_dai[3];
extern struct snd_soc_platform at91_soc_platform;
#define at91_ssc_read(a) ((unsigned long) __raw_readl(a))
#define at91_ssc_write(a,v) __raw_writel((v),(a))
#endif /* _AT91_PCM_H */