ALSA: hdspm - Introduce hdspm_external_rate_to_enum() helper function

This patch refactors the code to query the external sample rate and its
translation into the corresponding enum into a helper function to
prevent future code duplication.

A later commit will make use of this new helper function.

Signed-off-by: Adrian Knoth <adi@drcomp.erfurt.thur.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 17 insertions, 11 deletions

diff --git a/sound/pci/rme9652/hdspm.c b/sound/pci/rme9652/hdspm.c
index f6e922cf3fd3..26f10fdbfcd6 100644
--- a/sound/pci/rme9652/hdspm.c
+++ b/sound/pci/rme9652/hdspm.c
@@ -2303,6 +2303,21 @@ static void snd_hdspm_set_infotext(struct snd_ctl_elem_info *uinfo,
         snd_hdspm_set_infotext(info, texts, ARRAY_SIZE(texts))
 
 
+/* Helper function to query the external sample rate and return the
+ * corresponding enum to be returned to userspace.
+ */
+static int hdspm_external_rate_to_enum(struct hdspm *hdspm)
+{
+        int rate = hdspm_external_sample_rate(hdspm);
+        int i, selected_rate = 0;
+        for (i = 1; i < 10; i++)
+                if (HDSPM_bit2freq(i) == rate) {
+                        selected_rate = i;
+                        break;
+                }
+        return selected_rate;
+}
+
 
 #define HDSPM_AUTOSYNC_SAMPLE_RATE(xname, xindex) \
 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
@@ -2396,18 +2411,9 @@ static int snd_hdspm_get_autosync_sample_rate(struct snd_kcontrol *kcontrol,
 
         case MADI:
         case MADIface:
-                {
-                        int rate = hdspm_external_sample_rate(hdspm);
-                        int i, selected_rate = 0;
-                        for (i = 1; i < 10; i++)
-                                if (HDSPM_bit2freq(i) == rate) {
-                                        selected_rate = i;
-                                        break;
-                                }
-                        ucontrol->value.enumerated.item[0] = selected_rate;
-                }
+                ucontrol->value.enumerated.item[0] =
+                        hdspm_external_rate_to_enum(hdspm);
                 break;
-
         default:
                 break;
         }