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[ALSA] Add dB scale information to cs4281 driver 

Added the dB scale information to cs4281 driver.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
This commit is contained in:
Takashi Iwai 2006-08-23 12:14:25 +02:00 committed by Jaroslav Kysela
parent 9107226d2c
commit 9f6ab25063
1 changed files with 5 additions and 0 deletions
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5
sound/pci/cs4281.c
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@ -33,6 +33,7 @@
#include <sound/pcm.h>
#include <sound/rawmidi.h>
#include <sound/ac97_codec.h>
#include <sound/tlv.h>
#include <sound/opl3.h>
#include <sound/initval.h>
@ -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)