kselftest/alsa: Log card names during startup

It can be helpful to know which card numbers apply to which cards in a
multi-card system so log the card names when we start the test programs.
People looking at the logs may not have direct access to the systems being
tested.
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20230223-alsa-log-ctl-name-v1-2-ac0f10cc4db2@kernel.orgSigned-off-by: Takashi Iwai <tiwai@suse.de>

tools/testing/selftests/alsa/mixer-test.c

@@ -63,6 +63,7 @@ static void find_controls(void)
 	struct card_data *card_data;
 	struct ctl_data *ctl_data;
 	snd_config_t *config;
+	char *card_name, *card_longname;
 
 	card = -1;
 	if (snd_card_next(&card) < 0 || card < 0)
@@ -84,6 +85,15 @@ static void find_controls(void)
 			goto next_card;
 		}
 
+		err = snd_card_get_name(card, &card_name);
+		if (err != 0)
+			card_name = "Unknown";
+		err = snd_card_get_longname(card, &card_longname);
+		if (err != 0)
+			card_longname = "Unknown";
+		ksft_print_msg("Card %d - %s (%s)\n", card,
+			       card_name, card_longname);
+
 		/* Count controls */
 		snd_ctl_elem_list_malloc(&card_data->ctls);
 		snd_ctl_elem_list(card_data->handle, card_data->ctls);

tools/testing/selftests/alsa/pcm-test.c

@@ -149,6 +149,7 @@ static void missing_devices(int card, snd_config_t *card_config)
 static void find_pcms(void)
 {
 	char name[32], key[64];
+	char *card_name, *card_longname;
 	int card, dev, subdev, count, direction, err;
 	snd_pcm_stream_t stream;
 	struct pcm_data *pcm_data;
@@ -175,6 +176,15 @@ static void find_pcms(void)
 			goto next_card;
 		}
 
+		err = snd_card_get_name(card, &card_name);
+		if (err != 0)
+			card_name = "Unknown";
+		err = snd_card_get_longname(card, &card_longname);
+		if (err != 0)
+			card_longname = "Unknown";
+		ksft_print_msg("Card %d - %s (%s)\n", card,
+			       card_name, card_longname);
+
 		card_config = conf_by_card(card);
 
 		card_data = calloc(1, sizeof(*card_data));