[alsa-devel] [RFC PATCH 5/5] ASoC: omap-mcbsp: Place correct constraints for streams
Peter Ujfalusi
peter.ujfalusi at nokia.com
Mon May 31 13:57:22 CEST 2010
On Monday 31 May 2010 13:00:21 ext Liam Girdwood wrote:
...
> > +static int hw_rule_bsize_by_channels(struct snd_pcm_hw_params *params,
> > + struct snd_pcm_hw_rule *rule)
> > +{
> > + struct snd_interval *bs = hw_param_interval(params,
> > + SNDRV_PCM_HW_PARAM_BUFFER_SIZE);
> > + struct snd_interval *c = hw_param_interval(params,
> > + SNDRV_PCM_HW_PARAM_CHANNELS);
>
> Best to make these variable names more meaningful.
Sure, I can change that. I have picked these, since all code, which adds hw_rule
(and the writing an ALSA driver manual) are using variables like this.
In Here I mean:
bs == Buffer Size
c == Channels
>
> > + struct omap_mcbsp_data *mcbsp_data = rule->private;
> > + struct snd_interval frames;
> > + int size;
> > +
> > + snd_interval_any(&frames);
> > + size = omap_mcbsp_get_fifo_size(mcbsp_data->bus_id);
> > +
> > + frames.min = size / c->min;
> > + frames.integer = 1;
> > + return snd_interval_refine(bs, &frames);
> > +
> > +}
> > +
> > +static int hw_rule_psize_by_channels(struct snd_pcm_hw_params *params,
> > + struct snd_pcm_hw_rule *rule)
> > +{
> > + struct snd_interval *ps = hw_param_interval(params,
> > + SNDRV_PCM_HW_PARAM_PERIOD_SIZE);
> > + struct snd_interval *c = hw_param_interval(params,
> > + SNDRV_PCM_HW_PARAM_CHANNELS);
>
> ditto
Same here:
I mean:
ps == Period Size
c == Channels
>
> Thanks
>
> Liam
Never the less, I can change them,
Thanks,
Péter
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