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| author | Takashi Iwai <tiwai@suse.de> | 2006-08-23 12:14:25 +0200 |
|---|---|---|
| committer | Jaroslav Kysela <perex@suse.cz> | 2006-09-23 10:43:05 +0200 |
| commit | 9f6ab25063f04597e02968ae8393e8f4703c1563 (patch) | |
| tree | 279423663dc11dd50d3246a9d3073ded4d706645 /sound/pci/cs4281.c | |
| parent | 9107226d2ca8a15534da96313a1d370fb1eb8f9e (diff) | |
| download | lwn-9f6ab25063f04597e02968ae8393e8f4703c1563.tar.gz lwn-9f6ab25063f04597e02968ae8393e8f4703c1563.zip | |
[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/pci/cs4281.c')
| -rw-r--r-- | sound/pci/cs4281.c | 5 |
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) |