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authorJaya Kumar <jayakumar.alsa@gmail.com>2006-06-23 17:18:41 +0400
committerJaroslav Kysela <perex@suse.cz>2006-06-28 21:30:45 +0400
commit02856b5684677b74095069c3be4774c2992e4fdc (patch)
tree557b1e5936e025ab7713788156a5a24ae4d8995a /include/sound/ac97_codec.h
parent02ada9c112eb00ecb9d2c04b6132f48ade534dbf (diff)
downloadlinux-02856b5684677b74095069c3be4774c2992e4fdc.tar.xz
[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>
Diffstat (limited to 'include/sound/ac97_codec.h')
-rw-r--r--include/sound/ac97_codec.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/sound/ac97_codec.h b/include/sound/ac97_codec.h
index 446afc3ea27f..758f8bf133c7 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 */