[alsa-devel] [PATCH 1/2] ASoC: DaVinci: McASP driver enhacements

[chaithrika]

On Sat, Aug 08, 2009 at 01:29:05, Troy Kisky wrote:
> Chaithrika U S wrote:
> > ---
> >  sound/soc/davinci/davinci-mcasp.c |  113
++++++++++++++++++++++++++++++++++--
> >  sound/soc/davinci/davinci-mcasp.h |    5 ++
> >  sound/soc/davinci/davinci-pcm.c   |    4 +-
> >  sound/soc/davinci/davinci-pcm.h   |    1 +
> >  4 files changed, 115 insertions(+), 8 deletions(-)
> 
> .....
> > diff --git a/sound/soc/davinci/davinci-pcm.c
b/sound/soc/davinci/davinci-pcm.c
> > index 8fd0c3c..1e2dfd0 100644
> > --- a/sound/soc/davinci/davinci-pcm.c
> > +++ b/sound/soc/davinci/davinci-pcm.c
> > @@ -67,6 +67,7 @@ static void davinci_pcm_enqueue_dma(struct
snd_pcm_substream *substream)
> >  	dma_addr_t src, dst;
> >  	unsigned short src_bidx, dst_bidx;
> >  	unsigned int data_type;
> > +	unsigned short acnt;
> >  	unsigned int count;
> >  
> >  	period_size = snd_pcm_lib_period_bytes(substream);
> > @@ -91,11 +92,12 @@ static void davinci_pcm_enqueue_dma(struct
snd_pcm_substream *substream)
> >  		dst_bidx = data_type;
> >  	}
> >  
> > +	acnt = prtd->params->acnt;
> >  	edma_set_src(lch, src, INCR, W8BIT);
> >  	edma_set_dest(lch, dst, INCR, W8BIT);
> >  	edma_set_src_index(lch, src_bidx, 0);
> >  	edma_set_dest_index(lch, dst_bidx, 0);
> > -	edma_set_transfer_params(lch, data_type, count, 1, 0, ASYNC);
> > +	edma_set_transfer_params(lch, acnt, count, 1, 0, ASYNC);
> 
> Since I see no change to davinci-i2s, I think this will break any platform
which
> uses davinci-i2s.
> 
Yes, I agree. I have missed out the changes got davinci-i2s.
I will submit a patch for this.

Thanks,
Chaithrika


> >  
> >  	prtd->period++;
> >  	if (unlikely(prtd->period >= runtime->periods))
> > diff --git a/sound/soc/davinci/davinci-pcm.h
b/sound/soc/davinci/davinci-pcm.h
> > index eb4287f..63d9625 100644
> > --- a/sound/soc/davinci/davinci-pcm.h
> > +++ b/sound/soc/davinci/davinci-pcm.h
> > @@ -19,6 +19,7 @@
> >  struct davinci_pcm_dma_params {
> >  	char *name;			/* stream identifier */
> >  	int channel;			/* sync dma channel ID */
> > +	unsigned short acnt;
> >  	dma_addr_t dma_addr;		/* device physical address for DMA
*/
> >  	enum dma_event_q eventq_no;	/* event queue number */
> >  	unsigned char data_type;	/* xfer data type */
> 
>