diff options
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/sof/control.c | 22 | ||||
| -rw-r--r-- | sound/soc/sof/sof-audio.h | 2 | ||||
| -rw-r--r-- | sound/soc/sof/topology.c | 9 |
3 files changed, 33 insertions, 0 deletions
diff --git a/sound/soc/sof/control.c b/sound/soc/sof/control.c index 056c86ad5a47..a5dd728c580a 100644 --- a/sound/soc/sof/control.c +++ b/sound/soc/sof/control.c @@ -114,6 +114,28 @@ int snd_sof_volume_put(struct snd_kcontrol *kcontrol, return change; } +int snd_sof_volume_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) +{ + struct soc_mixer_control *sm = (struct soc_mixer_control *)kcontrol->private_value; + struct snd_sof_control *scontrol = sm->dobj.private; + unsigned int channels = scontrol->num_channels; + int platform_max; + + if (!sm->platform_max) + sm->platform_max = sm->max; + platform_max = sm->platform_max; + + if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume")) + uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; + else + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + + uinfo->count = channels; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = platform_max - sm->min; + return 0; +} + int snd_sof_switch_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { diff --git a/sound/soc/sof/sof-audio.h b/sound/soc/sof/sof-audio.h index 9f645a2e5a6c..ddcfd46617f8 100644 --- a/sound/soc/sof/sof-audio.h +++ b/sound/soc/sof/sof-audio.h @@ -124,6 +124,8 @@ int snd_sof_volume_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol); int snd_sof_volume_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol); +int snd_sof_volume_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *ucontrol); int snd_sof_switch_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol); int snd_sof_switch_put(struct snd_kcontrol *kcontrol, diff --git a/sound/soc/sof/topology.c b/sound/soc/sof/topology.c index 430d274722ae..b6b32a7a91f8 100644 --- a/sound/soc/sof/topology.c +++ b/sound/soc/sof/topology.c @@ -1041,6 +1041,15 @@ static int sof_control_load_volume(struct snd_soc_component *scomp, goto out; } + /* + * If control has more than 2 channels we need to override the info. This is because even if + * ASoC layer has defined topology's max channel count to SND_SOC_TPLG_MAX_CHAN = 8, the + * pre-defined dapm control types (and related functions) creating the actual control + * restrict the channels only to mono or stereo. + */ + if (le32_to_cpu(mc->num_channels) > 2) + kc->info = snd_sof_volume_info; + /* init the volume get/put data */ scontrol->size = struct_size(scontrol->control_data, chanv, le32_to_cpu(mc->num_channels)); |