ALSA: hda - add beep_mode module parameter

The beep_mode parameter for snd-hda-intel module allows to choose among
different digital beep device registation to the input layer.

0 = do not register to the input layer
1 = register to the input layer all time
2 = use "Beep Switch" control exported to user space mixer applications

Also, introduce CONFIG_SND_HDA_INPUT_BEEP_MODE for default value.

Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/pci/hda/hda_intel.c

@@ -64,6 +64,10 @@ static int enable_msi = -1;
 #ifdef CONFIG_SND_HDA_PATCH_LOADER
 static char *patch[SNDRV_CARDS];
 #endif
+#ifdef CONFIG_SND_HDA_INPUT_BEEP
+static int beep_mode[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] =
+					CONFIG_SND_HDA_INPUT_BEEP_MODE};
+#endif
 
 module_param_array(index, int, NULL, 0444);
 MODULE_PARM_DESC(index, "Index value for Intel HD audio interface.");
@@ -91,6 +95,11 @@ MODULE_PARM_DESC(enable_msi, "Enable Message Signaled Interrupt (MSI)");
 module_param_array(patch, charp, NULL, 0444);
 MODULE_PARM_DESC(patch, "Patch file for Intel HD audio interface.");
 #endif
+#ifdef CONFIG_SND_HDA_INPUT_BEEP
+module_param_array(beep_mode, int, NULL, 0444);
+MODULE_PARM_DESC(beep_mode, "Select HDA Beep registration mode "
+			    "(0=off, 1=on, 2=mute switch on/off) (default=1).");
+#endif
 
 #ifdef CONFIG_SND_HDA_POWER_SAVE
 static int power_save = CONFIG_SND_HDA_POWER_SAVE_DEFAULT;
@@ -404,6 +413,7 @@ struct azx {
 	unsigned short codec_mask;
 	int  codec_probe_mask; /* copied from probe_mask option */
 	struct hda_bus *bus;
+	unsigned int beep_mode;
 
 	/* CORB/RIRB */
 	struct azx_rb corb;
@@ -1404,6 +1414,7 @@ static int __devinit azx_codec_create(struct azx *chip, const char *model)
 			err = snd_hda_codec_new(chip->bus, c, &codec);
 			if (err < 0)
 				continue;
+			codec->beep_mode = chip->beep_mode;
 			codecs++;
 		}
 	}
@@ -2579,6 +2590,10 @@ static int __devinit azx_probe(struct pci_dev *pci,
 		goto out_free;
 	card->private_data = chip;
 
+#ifdef CONFIG_SND_HDA_INPUT_BEEP
+	chip->beep_mode = beep_mode[dev];
+#endif
+
 	/* create codec instances */
 	err = azx_codec_create(chip, model[dev]);
 	if (err < 0)