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authorJaya Kumar <jayakumar.alsa@gmail.com>2006-06-23 15:18:41 +0200
committerJaroslav Kysela <perex@suse.cz>2006-06-28 19:30:45 +0200
commit02856b5684677b74095069c3be4774c2992e4fdc (patch)
tree557b1e5936e025ab7713788156a5a24ae4d8995a
parent02ada9c112eb00ecb9d2c04b6132f48ade534dbf (diff)
[ALSA] AD1888 mixer controls for DC mode
This patch adds two mixer controls. The V_REFOUT enable is a documented register that couples the microphone input lines to the V_REFOUT DC source. The High Pass Filter enable in the AC97_AD_TEST2 (0x5c) is an undocumented register provided by Miller Puckette via Analog Devices that enables the AD codec to apply a high pass filter to the input. Signed-off-by: Jaya Kumar <jayakumar.alsa@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
-rw-r--r--include/sound/ac97_codec.h1
-rw-r--r--sound/pci/ac97/ac97_patch.c2
2 files changed, 3 insertions, 0 deletions
diff --git a/include/sound/ac97_codec.h b/include/sound/ac97_codec.h
index 446afc3ea27..758f8bf133c 100644
--- a/include/sound/ac97_codec.h
+++ b/include/sound/ac97_codec.h
@@ -265,6 +265,7 @@
/* specific - Analog Devices */
#define AC97_AD_TEST 0x5a /* test register */
+#define AC97_AD_TEST2 0x5c /* undocumented test register 2 */
#define AC97_AD_CODEC_CFG 0x70 /* codec configuration */
#define AC97_AD_JACK_SPDIF 0x72 /* Jack Sense & S/PDIF */
#define AC97_AD_SERIAL_CFG 0x74 /* Serial Configuration */
diff --git a/sound/pci/ac97/ac97_patch.c b/sound/pci/ac97/ac97_patch.c
index 7f197c78081..094cfc1f3a1 100644
--- a/sound/pci/ac97/ac97_patch.c
+++ b/sound/pci/ac97/ac97_patch.c
@@ -1824,6 +1824,8 @@ static const struct snd_kcontrol_new snd_ac97_ad1888_controls[] = {
.get = snd_ac97_ad1888_lohpsel_get,
.put = snd_ac97_ad1888_lohpsel_put
},
+ AC97_SINGLE("V_REFOUT Enable", AC97_AD_MISC, 2, 1, 1),
+ AC97_SINGLE("High Pass Filter Enable", AC97_AD_TEST2, 12, 1, 1),
AC97_SINGLE("Spread Front to Surround and Center/LFE", AC97_AD_MISC, 7, 1, 0),
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,