ALSA: hdspm - Remove duplicate code from ALSA controls

Considerably shorten the code by using a macro. Though this won't lower
the binary size, it makes the source more readable.
Signed-off-by: Adrian Knoth <adi@drcomp.erfurt.thur.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/pci/rme9652/hdspm.c

@@ -2175,6 +2175,16 @@ static int hdspm_get_s1_sample_rate(struct hdspm *hdspm, unsigned int idx)
 	return (status >> (idx*4)) & 0xF;
 }
 
+#define ENUMERATED_CTL_INFO(info, texts) \
+{ \
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; \
+	uinfo->count = 1; \
+	uinfo->value.enumerated.items = ARRAY_SIZE(texts); \
+	if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items) \
+		uinfo->value.enumerated.item =	uinfo->value.enumerated.items - 1; \
+	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]); \
+}
+
 
 
 #define HDSPM_AUTOSYNC_SAMPLE_RATE(xname, xindex) \
@@ -2190,14 +2200,7 @@ static int hdspm_get_s1_sample_rate(struct hdspm *hdspm, unsigned int idx)
 static int snd_hdspm_info_autosync_sample_rate(struct snd_kcontrol *kcontrol,
 					       struct snd_ctl_elem_info *uinfo)
 {
-	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
-	uinfo->count = 1;
-	uinfo->value.enumerated.items = 10;
-
-	if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
-		uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;
-	strcpy(uinfo->value.enumerated.name,
-			texts_freq[uinfo->value.enumerated.item]);
+	ENUMERATED_CTL_INFO(uinfo, texts_freq);
 	return 0;
 }
 
@@ -2363,15 +2366,7 @@ static int snd_hdspm_info_system_clock_mode(struct snd_kcontrol *kcontrol,
 					    struct snd_ctl_elem_info *uinfo)
 {
 	static char *texts[] = { "Master", "AutoSync" };
-
-	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
-	uinfo->count = 1;
-	uinfo->value.enumerated.items = 2;
-	if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
-		uinfo->value.enumerated.item =
-		    uinfo->value.enumerated.items - 1;
-	strcpy(uinfo->value.enumerated.name,
-	       texts[uinfo->value.enumerated.item]);
+	ENUMERATED_CTL_INFO(uinfo, texts);
 	return 0;
 }
 
@@ -3021,17 +3016,7 @@ static int snd_hdspm_info_input_select(struct snd_kcontrol *kcontrol,
 				       struct snd_ctl_elem_info *uinfo)
 {
 	static char *texts[] = { "optical", "coaxial" };
-
-	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
-	uinfo->count = 1;
-	uinfo->value.enumerated.items = 2;
-
-	if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
-		uinfo->value.enumerated.item =
-		    uinfo->value.enumerated.items - 1;
-	strcpy(uinfo->value.enumerated.name,
-	       texts[uinfo->value.enumerated.item]);
-
+	ENUMERATED_CTL_INFO(uinfo, texts);
 	return 0;
 }
 
@@ -3093,17 +3078,7 @@ static int snd_hdspm_info_ds_wire(struct snd_kcontrol *kcontrol,
 				  struct snd_ctl_elem_info *uinfo)
 {
 	static char *texts[] = { "Single", "Double" };
-
-	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
-	uinfo->count = 1;
-	uinfo->value.enumerated.items = 2;
-
-	if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
-		uinfo->value.enumerated.item =
-		    uinfo->value.enumerated.items - 1;
-	strcpy(uinfo->value.enumerated.name,
-	       texts[uinfo->value.enumerated.item]);
-
+	ENUMERATED_CTL_INFO(uinfo, texts);
 	return 0;
 }
 
@@ -3176,17 +3151,7 @@ static int snd_hdspm_info_qs_wire(struct snd_kcontrol *kcontrol,
 				       struct snd_ctl_elem_info *uinfo)
 {
 	static char *texts[] = { "Single", "Double", "Quad" };
-
-	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
-	uinfo->count = 1;
-	uinfo->value.enumerated.items = 3;
-
-	if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
-		uinfo->value.enumerated.item =
-		    uinfo->value.enumerated.items - 1;
-	strcpy(uinfo->value.enumerated.name,
-	       texts[uinfo->value.enumerated.item]);
-
+	ENUMERATED_CTL_INFO(uinfo, texts);
 	return 0;
 }
 
@@ -3262,17 +3227,7 @@ static int snd_hdspm_info_madi_speedmode(struct snd_kcontrol *kcontrol,
 				       struct snd_ctl_elem_info *uinfo)
 {
 	static char *texts[] = { "Single", "Double", "Quad" };
-
-	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
-	uinfo->count = 1;
-	uinfo->value.enumerated.items = 3;
-
-	if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
-		uinfo->value.enumerated.item =
-		    uinfo->value.enumerated.items - 1;
-	strcpy(uinfo->value.enumerated.name,
-	       texts[uinfo->value.enumerated.item]);
-
+	ENUMERATED_CTL_INFO(uinfo, texts);
 	return 0;
 }
 
@@ -3497,14 +3452,7 @@ static int snd_hdspm_info_sync_check(struct snd_kcontrol *kcontrol,
 				     struct snd_ctl_elem_info *uinfo)
 {
 	static char *texts[] = { "No Lock", "Lock", "Sync", "N/A" };
-	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
-	uinfo->count = 1;
-	uinfo->value.enumerated.items = 4;
-	if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
-		uinfo->value.enumerated.item =
-			uinfo->value.enumerated.items - 1;
-	strcpy(uinfo->value.enumerated.name,
-			texts[uinfo->value.enumerated.item]);
+	ENUMERATED_CTL_INFO(uinfo, texts);
 	return 0;
 }
 
@@ -3860,17 +3808,7 @@ static int snd_hdspm_info_tco_sample_rate(struct snd_kcontrol *kcontrol,
 					  struct snd_ctl_elem_info *uinfo)
 {
 	static char *texts[] = { "44.1 kHz", "48 kHz" };
-	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
-	uinfo->count = 1;
-	uinfo->value.enumerated.items = 2;
-
-	if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
-		uinfo->value.enumerated.item =
-			uinfo->value.enumerated.items - 1;
-
-	strcpy(uinfo->value.enumerated.name,
-			texts[uinfo->value.enumerated.item]);
-
+	ENUMERATED_CTL_INFO(uinfo, texts);
 	return 0;
 }
 
@@ -3916,17 +3854,7 @@ static int snd_hdspm_info_tco_pull(struct snd_kcontrol *kcontrol,
 				   struct snd_ctl_elem_info *uinfo)
 {
 	static char *texts[] = { "0", "+ 0.1 %", "- 0.1 %", "+ 4 %", "- 4 %" };
-	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
-	uinfo->count = 1;
-	uinfo->value.enumerated.items = 5;
-
-	if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
-		uinfo->value.enumerated.item =
-			uinfo->value.enumerated.items - 1;
-
-	strcpy(uinfo->value.enumerated.name,
-			texts[uinfo->value.enumerated.item]);
-
+	ENUMERATED_CTL_INFO(uinfo, texts);
 	return 0;
 }
 
@@ -3971,17 +3899,7 @@ static int snd_hdspm_info_tco_wck_conversion(struct snd_kcontrol *kcontrol,
 					     struct snd_ctl_elem_info *uinfo)
 {
 	static char *texts[] = { "1:1", "44.1 -> 48", "48 -> 44.1" };
-	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
-	uinfo->count = 1;
-	uinfo->value.enumerated.items = 3;
-
-	if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
-		uinfo->value.enumerated.item =
-			uinfo->value.enumerated.items - 1;
-
-	strcpy(uinfo->value.enumerated.name,
-			texts[uinfo->value.enumerated.item]);
-
+	ENUMERATED_CTL_INFO(uinfo, texts);
 	return 0;
 }
 
@@ -4028,17 +3946,7 @@ static int snd_hdspm_info_tco_frame_rate(struct snd_kcontrol *kcontrol,
 {
 	static char *texts[] = { "24 fps", "25 fps", "29.97fps",
 		"29.97 dfps", "30 fps", "30 dfps" };
-	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
-	uinfo->count = 1;
-	uinfo->value.enumerated.items = 6;
-
-	if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
-		uinfo->value.enumerated.item =
-			uinfo->value.enumerated.items - 1;
-
-	strcpy(uinfo->value.enumerated.name,
-			texts[uinfo->value.enumerated.item]);
-
+	ENUMERATED_CTL_INFO(uinfo, texts);
 	return 0;
 }
 
@@ -4084,17 +3992,7 @@ static int snd_hdspm_info_tco_sync_source(struct snd_kcontrol *kcontrol,
 					  struct snd_ctl_elem_info *uinfo)
 {
 	static char *texts[] = { "LTC", "Video", "WCK" };
-	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
-	uinfo->count = 1;
-	uinfo->value.enumerated.items = 3;
-
-	if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
-		uinfo->value.enumerated.item =
-			uinfo->value.enumerated.items - 1;
-
-	strcpy(uinfo->value.enumerated.name,
-			texts[uinfo->value.enumerated.item]);
-
+	ENUMERATED_CTL_INFO(uinfo, texts);
 	return 0;
 }