On Tue, 8 Aug 2023 08:26:16 +0000
Christophe Leroy <christophe.le...@csgroup.eu> wrote:
> Le 26/07/2023 à 17:02, Herve Codina a écrit :
> > The framer codec interracts with a framer.
> > It allows to use some of the framer timeslots as audio channels to
> > transport audio data over the framer E1/T1/J1 lines.
> > It also reports line carrier detection events through the ALSA jack
> > detection feature.
> >
> > Signed-off-by: Herve Codina <herve.cod...@bootlin.com>
>
> Reviewed-by: Christophe Leroy <christophe.le...@csgroup.eu>
>
> See below
>
> > +static int framer_dai_hw_rule_channels_by_format(struct snd_soc_dai *dai,
> > + struct snd_pcm_hw_params
> > *params,
> > + unsigned int nb_ts)
> > +{
> > + struct snd_interval *c = hw_param_interval(params,
> > SNDRV_PCM_HW_PARAM_CHANNELS);
> > + snd_pcm_format_t format = params_format(params);
> > + struct snd_interval ch = {0};
> > +
> > + switch (snd_pcm_format_physical_width(format)) {
> > + case 8:
> > + ch.max = nb_ts;
> > + break;
> > + case 16:
> > + ch.max = nb_ts / 2;
> > + break;
> > + case 32:
> > + ch.max = nb_ts / 4;
> > + break;
> > + case 64:
> > + ch.max = nb_ts / 8;
> > + break;
> > + default:
> > + dev_err(dai->dev, "format physical width %u not supported\n",
> > + snd_pcm_format_physical_width(format));
> > + return -EINVAL;
> > + }
>
> What about
>
> width = snd_pcm_format_physical_width(format);
>
> if (width == 8 || width == 16 || width == 32 || width == 64) {
> ch.max = nb_ts * 8 / width;
> } else {
> dev_err(dai->dev, "format physical width %u not supported\n",
> width);
> return -EINVAL;
> }
>
Yes, indeed.
Will be changed in the next iteration.
Regards,
Hervé
