ALSA: hda - Create beep control on ALC269 codec

ALC269 codec has a beep, but it was not used, so far.
Create a beep control appropriately.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>

sound/pci/hda/patch_realtek.c

@@ -11068,6 +11068,8 @@ static struct snd_kcontrol_new alc269_base_mixer[] = {
 	HDA_CODEC_MUTE("Line Playback Switch", 0x0b, 0x02, HDA_INPUT),
 	HDA_CODEC_VOLUME("Mic Playback Volume", 0x0b, 0x0, HDA_INPUT),
 	HDA_CODEC_MUTE("Mic Playback Switch", 0x0b, 0x0, HDA_INPUT),
+	HDA_CODEC_VOLUME("Beep Playback Volume", 0x0b, 0x4, HDA_INPUT),
+	HDA_CODEC_MUTE("Beep Playback Switch", 0x0b, 0x4, HDA_INPUT),
 	HDA_CODEC_VOLUME("Mic Boost", 0x18, 0, HDA_INPUT),
 	HDA_CODEC_VOLUME("Front Mic Playback Volume", 0x0b, 0x01, HDA_INPUT),
 	HDA_CODEC_MUTE("Front Mic Playback Switch", 0x0b, 0x01, HDA_INPUT),
@@ -11120,6 +11122,13 @@ static struct snd_kcontrol_new alc269_epc_capture_mixer[] = {
 	{ } /* end */
 };
 
+/* beep control */
+static struct snd_kcontrol_new alc269_beep_mixer[] = {
+	HDA_CODEC_VOLUME("Beep Playback Volume", 0x0b, 0x4, HDA_INPUT),
+	HDA_CODEC_MUTE("Beep Playback Switch", 0x0b, 0x4, HDA_INPUT),
+	{ } /* end */
+};
+
 /*
  * generic initialization of ADC, input mixers and output mixers
  */
@@ -11382,7 +11391,7 @@ static int alc269_auto_create_multi_out_ctls(struct alc_spec *spec,
 static int alc269_parse_auto_config(struct hda_codec *codec)
 {
 	struct alc_spec *spec = codec->spec;
-	int err;
+	int i, err;
 	static hda_nid_t alc269_ignore[] = { 0x1d, 0 };
 
 	err = snd_hda_parse_pin_def_config(codec, &spec->autocfg,
@@ -11405,6 +11414,13 @@ static int alc269_parse_auto_config(struct hda_codec *codec)
 	if (spec->kctl_alloc)
 		spec->mixers[spec->num_mixers++] = spec->kctl_alloc;
 
+	/* create a beep mixer control if the pin 0x1d isn't assigned */
+	for (i = 0; i < ARRAY_SIZE(spec->autocfg.input_pins); i++)
+		if (spec->autocfg.input_pins[i] == 0x1d)
+			break;
+	if (i >= ARRAY_SIZE(spec->autocfg.input_pins))
+		spec->mixers[spec->num_mixers++] = alc269_beep_mixer;
+
 	spec->init_verbs[spec->num_init_verbs++] = alc269_init_verbs;
 	spec->num_mux_defs = 1;
 	spec->input_mux = &spec->private_imux;