From 9f6ab25063f04597e02968ae8393e8f4703c1563 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Wed, 23 Aug 2006 12:14:25 +0200 Subject: [PATCH] [ALSA] Add dB scale information to cs4281 driver Added the dB scale information to cs4281 driver. Signed-off-by: Takashi Iwai Signed-off-by: Jaroslav Kysela --- sound/pci/cs4281.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/sound/pci/cs4281.c b/sound/pci/cs4281.c index 9631456..1990430 100644 --- a/sound/pci/cs4281.c +++ b/sound/pci/cs4281.c @@ -33,6 +33,7 @@ #include #include #include +#include #include #include @@ -1054,6 +1055,8 @@ static int snd_cs4281_put_volume(struct snd_kcontrol *kcontrol, return change; } +static DECLARE_TLV_DB_SCALE(db_scale_dsp, -4650, 150, 0); + static struct snd_kcontrol_new snd_cs4281_fm_vol = { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, @@ -1062,6 +1065,7 @@ static struct snd_kcontrol_new snd_cs4281_fm_vol = .get = snd_cs4281_get_volume, .put = snd_cs4281_put_volume, .private_value = ((BA0_FMLVC << 16) | BA0_FMRVC), + .tlv = { .p = db_scale_dsp }, }; static struct snd_kcontrol_new snd_cs4281_pcm_vol = @@ -1072,6 +1076,7 @@ static struct snd_kcontrol_new snd_cs4281_pcm_vol = .get = snd_cs4281_get_volume, .put = snd_cs4281_put_volume, .private_value = ((BA0_PPLVC << 16) | BA0_PPRVC), + .tlv = { .p = db_scale_dsp }, }; static void snd_cs4281_mixer_free_ac97_bus(struct snd_ac97_bus *bus) -- 2.7.4