leandrof/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

ASoC: hdmi-codec: Rework to support more controls

Browse Source 
We're going to add more controls to support the IEC958 output, so let's
rework the control registration a bit to support more of them.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Acked-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20210525132354.297468-4-maxime@cerno.tech
This commit is contained in:
Maxime Ripard 2021-05-25 15:23:45 +02:00
parent 9eafc11f92
commit 366b45b974
No known key found for this signature in database
GPG Key ID: E3EF0D6F671851C5
1 changed files with 26 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

41
sound/soc/codecs/hdmi-codec.c
View File

@ -620,21 +620,23 @@ static const struct snd_soc_dai_ops hdmi_codec_spdif_dai_ops = {
SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE |\
SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE)
struct snd_kcontrol_new hdmi_codec_controls[] = {
{
.access = (SNDRV_CTL_ELEM_ACCESS_READ |
SNDRV_CTL_ELEM_ACCESS_VOLATILE),
.iface = SNDRV_CTL_ELEM_IFACE_PCM,
.name = "ELD",
.info = hdmi_eld_ctl_info,
.get = hdmi_eld_ctl_get,
},
};
static int hdmi_codec_pcm_new(struct snd_soc_pcm_runtime *rtd,
struct snd_soc_dai *dai)
{
struct snd_soc_dai_driver *drv = dai->driver;
struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai);
struct snd_kcontrol *kctl;
struct snd_kcontrol_new hdmi_eld_ctl = {
.access = SNDRV_CTL_ELEM_ACCESS_READ |
SNDRV_CTL_ELEM_ACCESS_VOLATILE,
.iface = SNDRV_CTL_ELEM_IFACE_PCM,
.name = "ELD",
.info = hdmi_eld_ctl_info,
.get = hdmi_eld_ctl_get,
.device = rtd->pcm->device,
};
unsigned int i;
int ret;
ret = snd_pcm_add_chmap_ctls(rtd->pcm, SNDRV_PCM_STREAM_PLAYBACK,
@ -651,12 +653,21 @@ static int hdmi_codec_pcm_new(struct snd_soc_pcm_runtime *rtd,
hcp->chmap_info->chmap = hdmi_codec_stereo_chmaps;
hcp->chmap_idx = HDMI_CODEC_CHMAP_IDX_UNKNOWN;
/* add ELD ctl with the device number corresponding to the PCM stream */
kctl = snd_ctl_new1(&hdmi_eld_ctl, dai->component);
if (!kctl)
return -ENOMEM;
for (i = 0; i < ARRAY_SIZE(hdmi_codec_controls); i++) {
struct snd_kcontrol *kctl;
return snd_ctl_add(rtd->card->snd_card, kctl);
/* add ELD ctl with the device number corresponding to the PCM stream */
kctl = snd_ctl_new1(&hdmi_codec_controls[i], dai->component);
if (!kctl)
return -ENOMEM;
kctl->id.device = rtd->pcm->device;
ret = snd_ctl_add(rtd->card->snd_card, kctl);
if (ret < 0)
return ret;
}
return 0;
}
static int hdmi_dai_probe(struct snd_soc_dai *dai)