[alsa-devel] [PATCH] topology: Add support for widget byte controls

[Takashi Iwai]

On Mon, 14 Mar 2016 09:07:38 +0100,
Liam Girdwood wrote:
> 
> Add support for DAPM widgets to include bytes controls.
> 
> Signed-off-by: Liam Girdwood <liam.r.girdwood at linux.intel.com>

Applied, thanks.


Takashi


> ---
>  src/topology/dapm.c | 30 ++++++++++++++++++++++++++++++
>  1 file changed, 30 insertions(+)
> 
> diff --git a/src/topology/dapm.c b/src/topology/dapm.c
> index 14969ee..278d605 100644
> --- a/src/topology/dapm.c
> +++ b/src/topology/dapm.c
> @@ -103,6 +103,28 @@ static int tplg_parse_dapm_enums(snd_config_t *cfg, struct tplg_elem *elem)
>  	return 0;
>  }
>  
> +static int tplg_parse_dapm_bytes(snd_config_t *cfg, struct tplg_elem *elem)
> +{
> +	snd_config_iterator_t i, next;
> +	snd_config_t *n;
> +	const char *value = NULL;
> +
> +	tplg_dbg(" DAPM Bytes Controls: %s\n", elem->id);
> +
> +	snd_config_for_each(i, next, cfg) {
> +		n = snd_config_iterator_entry(i);
> +
> +		/* get value */
> +		if (snd_config_get_string(n, &value) < 0)
> +			continue;
> +
> +		tplg_ref_add(elem, SND_TPLG_TYPE_BYTES, value);
> +		tplg_dbg("\t\t %s\n", value);
> +	}
> +
> +	return 0;
> +}
> +
>  /* move referenced controls to the widget */
>  static int copy_dapm_control(struct tplg_elem *elem, struct tplg_elem *ref)
>  {
> @@ -567,6 +589,14 @@ int tplg_parse_dapm_widget(snd_tplg_t *tplg,
>  			continue;
>  		}
>  
> +		if (strcmp(id, "bytes") == 0) {
> +			err = tplg_parse_dapm_bytes(n, elem);
> +			if (err < 0)
> +				return err;
> +
> +			continue;
> +		}
> +
>  		if (strcmp(id, "data") == 0) {
>  			if (snd_config_get_string(n, &val) < 0)
>  				return -EINVAL;
> -- 
> 2.5.0
>