From 02856b5684677b74095069c3be4774c2992e4fdc Mon Sep 17 00:00:00 2001 From: Jaya Kumar Date: Fri, 23 Jun 2006 15:18:41 +0200 Subject: [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 Signed-off-by: Takashi Iwai Signed-off-by: Jaroslav Kysela --- include/sound/ac97_codec.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/sound/ac97_codec.h') 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 */ -- cgit v1.2.2