diff options
Diffstat (limited to 'sound/soc/sof/control.c')
| -rw-r--r-- | sound/soc/sof/control.c | 22 |
1 files changed, 22 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) { |