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authorTakashi Iwai <tiwai@suse.de>2006-08-23 12:14:25 +0200
committerJaroslav Kysela <perex@suse.cz>2006-09-23 10:43:05 +0200
commit9f6ab25063f04597e02968ae8393e8f4703c1563 (patch)
tree279423663dc11dd50d3246a9d3073ded4d706645 /sound
parent9107226d2ca8a15534da96313a1d370fb1eb8f9e (diff)
[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>
Diffstat (limited to 'sound')
-rw-r--r--sound/pci/cs4281.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/sound/pci/cs4281.c b/sound/pci/cs4281.c
index 9631456ec3de..1990430a21c1 100644
--- a/sound/pci/cs4281.c
+++ b/sound/pci/cs4281.c
@@ -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)