ALSA: core, oxygen, virtuoso: add an enum control info helper

Introduce the helper function snd_ctl_enum_info() to fill out the
elem_info fields for an enumerated control.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 4 insertions, 21 deletions

diff --git a/sound/pci/oxygen/xonar_wm87x6.c b/sound/pci/oxygen/xonar_wm87x6.c
index ad48356c54e4..42d1ab136217 100644
--- a/sound/pci/oxygen/xonar_wm87x6.c
+++ b/sound/pci/oxygen/xonar_wm87x6.c
@@ -577,11 +577,6 @@ static int wm8776_field_enum_info(struct snd_kcontrol *ctl,
         const char *const *names;
 
         max = (ctl->private_value >> 12) & 0xf;
-        info->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
-        info->count = 1;
-        info->value.enumerated.items = max + 1;
-        if (info->value.enumerated.item > max)
-                info->value.enumerated.item = max;
         switch ((ctl->private_value >> 24) & 0x1f) {
         case WM8776_ALCCTRL2:
                 names = hld;
@@ -605,8 +600,7 @@ static int wm8776_field_enum_info(struct snd_kcontrol *ctl,
         default:
                 return -ENXIO;
         }
-        strcpy(info->value.enumerated.name, names[info->value.enumerated.item]);
-        return 0;
+        return snd_ctl_enum_info(info, 1, max + 1, names);
 }
 
 static int wm8776_field_volume_info(struct snd_kcontrol *ctl,
@@ -863,13 +857,8 @@ static int wm8776_level_control_info(struct snd_kcontrol *ctl,
         static const char *const names[3] = {
                 "None", "Peak Limiter", "Automatic Level Control"
         };
-        info->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
-        info->count = 1;
-        info->value.enumerated.items = 3;
-        if (info->value.enumerated.item >= 3)
-                info->value.enumerated.item = 2;
-        strcpy(info->value.enumerated.name, names[info->value.enumerated.item]);
-        return 0;
+
+        return snd_ctl_enum_info(info, 1, 3, names);
 }
 
 static int wm8776_level_control_get(struct snd_kcontrol *ctl,
@@ -955,13 +944,7 @@ static int hpf_info(struct snd_kcontrol *ctl, struct snd_ctl_elem_info *info)
                 "None", "High-pass Filter"
         };
 
-        info->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
-        info->count = 1;
-        info->value.enumerated.items = 2;
-        if (info->value.enumerated.item >= 2)
-                info->value.enumerated.item = 1;
-        strcpy(info->value.enumerated.name, names[info->value.enumerated.item]);
-        return 0;
+        return snd_ctl_enum_info(info, 1, 2, names);
 }
 
 static int hpf_get(struct snd_kcontrol *ctl, struct snd_ctl_elem_value *value)