[PATCH 11/13] ASoC: soc-core: add soc_setup_card_name()

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From: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx>

ALSA needs to setup shortname, longname, and driver.
These methods are very similar.
This patch adds new soc_setup_card_name() and setup these.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx>
---
 sound/soc/soc-core.c | 60 ++++++++++++++++++++++++++++++++++++----------------
 1 file changed, 42 insertions(+), 18 deletions(-)

diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 4110114..ce7793a 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -1894,6 +1894,42 @@ static void soc_check_tplg_fes(struct snd_soc_card *card)
 	}
 }
 
+#define soc_setup_card_name(name, name1, name2, norm)		\
+	__soc_setup_card_name(name, sizeof(name), name1, name2, norm)
+static void __soc_setup_card_name(char *name, int len,
+				  const char *name1, const char *name2,
+				  int normalization)
+{
+	int i;
+
+	snprintf(name, len, "%s", name1 ? name1 : name2);
+
+	if (!normalization)
+		return;
+
+	/*
+	 * Name normalization
+	 *
+	 * The driver name is somewhat special, as it's used as a key for
+	 * searches in the user-space.
+	 *
+	 * ex)
+	 *	"abcd??efg" -> "abcd__efg"
+	 */
+	for (i = 0; i < len; i++) {
+		switch (name[i]) {
+		case '_':
+		case '-':
+		case '\0':
+			break;
+		default:
+			if (!isalnum(name[i]))
+				name[i] = '_';
+			break;
+		}
+	}
+}
+
 static void soc_cleanup_card_resources(struct snd_soc_card *card)
 {
 	struct snd_soc_dai_link *link, *_link;
@@ -2059,24 +2095,12 @@ static int snd_soc_instantiate_card(struct snd_soc_card *card)
 	/* try to set some sane longname if DMI is available */
 	snd_soc_set_dmi_name(card, NULL);
 
-	snprintf(card->snd_card->shortname, sizeof(card->snd_card->shortname),
-		 "%s", card->name);
-	snprintf(card->snd_card->longname, sizeof(card->snd_card->longname),
-		 "%s", card->long_name ? card->long_name : card->name);
-	snprintf(card->snd_card->driver, sizeof(card->snd_card->driver),
-		 "%s", card->driver_name ? card->driver_name : card->name);
-	for (i = 0; i < ARRAY_SIZE(card->snd_card->driver); i++) {
-		switch (card->snd_card->driver[i]) {
-		case '_':
-		case '-':
-		case '\0':
-			break;
-		default:
-			if (!isalnum(card->snd_card->driver[i]))
-				card->snd_card->driver[i] = '_';
-			break;
-		}
-	}
+	soc_setup_card_name(card->snd_card->shortname,
+			    card->name, NULL, 0);
+	soc_setup_card_name(card->snd_card->longname,
+			    card->long_name, card->name, 0);
+	soc_setup_card_name(card->snd_card->driver,
+			    card->driver_name, card->name, 1);
 
 	if (card->late_probe) {
 		ret = card->late_probe(card);
-- 
2.7.4

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