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>

1 files changed, 11 insertions, 0 deletions

diff --git a/sound/pci/hda/Kconfig b/sound/pci/hda/Kconfig
index 55545e0818b5..25ae10e16f59 100644
--- a/sound/pci/hda/Kconfig
+++ b/sound/pci/hda/Kconfig
@@ -38,6 +38,17 @@ config SND_HDA_INPUT_BEEP
           Say Y here to build a digital beep interface for HD-audio
           driver. This interface is used to generate digital beeps.
 
+config SND_HDA_INPUT_BEEP_MODE
+        int "Digital beep registration mode (0=off, 1=on, 2=mute sw on/off)"
+        depends on SND_HDA_INPUT_BEEP=y
+        default "1"
+        range 0 2
+        help
+          Set 0 to disable the digital beep interface for HD-audio by default.
+          Set 1 to always enable the digital beep interface for HD-audio by
+          default. Set 2 to control the beep device registration to input
+          layer using a "Beep Switch" in mixer applications.
+
 config SND_HDA_INPUT_JACK
         bool "Support jack plugging notification via input layer"
         depends on INPUT=y || INPUT=SND_HDA_INTEL