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77 lines
2.4 KiB
Diff
77 lines
2.4 KiB
Diff
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From 0ddc79efb48c97f0e678807fbe2471f122fd41f6 Mon Sep 17 00:00:00 2001
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From: Maxime Ripard <maxime@cerno.tech>
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Date: Wed, 28 Apr 2021 11:56:26 +0200
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Subject: [PATCH] ASoC: hdmi-codec: Rework to support more controls
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We're going to add more controls to support the IEC958 output, so let's
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rework the control registration a bit to support more of them.
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Signed-off-by: Maxime Ripard <maxime@cerno.tech>
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---
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sound/soc/codecs/hdmi-codec.c | 41 ++++++++++++++++++++++-------------
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1 file changed, 26 insertions(+), 15 deletions(-)
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--- a/sound/soc/codecs/hdmi-codec.c
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+++ b/sound/soc/codecs/hdmi-codec.c
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@@ -619,21 +619,23 @@ static const struct snd_soc_dai_ops hdmi
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SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE |\
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SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE)
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+struct snd_kcontrol_new hdmi_codec_controls[] = {
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+ {
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+ .access = (SNDRV_CTL_ELEM_ACCESS_READ |
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+ SNDRV_CTL_ELEM_ACCESS_VOLATILE),
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+ .iface = SNDRV_CTL_ELEM_IFACE_PCM,
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+ .name = "ELD",
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+ .info = hdmi_eld_ctl_info,
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+ .get = hdmi_eld_ctl_get,
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+ },
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+};
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+
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static int hdmi_codec_pcm_new(struct snd_soc_pcm_runtime *rtd,
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struct snd_soc_dai *dai)
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{
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struct snd_soc_dai_driver *drv = dai->driver;
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struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai);
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- struct snd_kcontrol *kctl;
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- struct snd_kcontrol_new hdmi_eld_ctl = {
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- .access = SNDRV_CTL_ELEM_ACCESS_READ |
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- SNDRV_CTL_ELEM_ACCESS_VOLATILE,
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- .iface = SNDRV_CTL_ELEM_IFACE_PCM,
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- .name = "ELD",
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- .info = hdmi_eld_ctl_info,
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- .get = hdmi_eld_ctl_get,
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- .device = rtd->pcm->device,
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- };
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+ unsigned int i;
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int ret;
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ret = snd_pcm_add_chmap_ctls(rtd->pcm, SNDRV_PCM_STREAM_PLAYBACK,
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@@ -650,12 +652,21 @@ static int hdmi_codec_pcm_new(struct snd
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hcp->chmap_info->chmap = hdmi_codec_stereo_chmaps;
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hcp->chmap_idx = HDMI_CODEC_CHMAP_IDX_UNKNOWN;
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- /* add ELD ctl with the device number corresponding to the PCM stream */
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- kctl = snd_ctl_new1(&hdmi_eld_ctl, dai->component);
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- if (!kctl)
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- return -ENOMEM;
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+ for (i = 0; i < ARRAY_SIZE(hdmi_codec_controls); i++) {
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+ struct snd_kcontrol *kctl;
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+
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+ /* add ELD ctl with the device number corresponding to the PCM stream */
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+ kctl = snd_ctl_new1(&hdmi_codec_controls[i], dai->component);
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+ if (!kctl)
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+ return -ENOMEM;
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+
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+ kctl->id.device = rtd->pcm->device;
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+ ret = snd_ctl_add(rtd->card->snd_card, kctl);
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+ if (ret < 0)
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+ return ret;
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+ }
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- return snd_ctl_add(rtd->card->snd_card, kctl);
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+ return 0;
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}
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static int hdmi_dai_probe(struct snd_soc_dai *dai)
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