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[ALSA] Added TLV support to VIA82xx driver

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Added the TLV support to VIA82xx driver for addition of
dB range information.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
This commit is contained in:
Takashi Iwai 2006-08-21 18:44:54 +02:00 committed by Jaroslav Kysela
parent 2f3482fbbd
commit 7058c04200
1 changed files with 9 additions and 0 deletions
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9
sound/pci/via82xx.c
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@ -59,6 +59,7 @@
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/info.h>
#include <sound/tlv.h>
#include <sound/ac97_codec.h>
#include <sound/mpu401.h>
#include <sound/initval.h>
@ -1698,21 +1699,29 @@ static int snd_via8233_pcmdxs_volume_put(struct snd_kcontrol *kcontrol,
return change;
}
static DECLARE_TLV_DB_SCALE(db_scale_dxs, -9450, 150, 1);
static struct snd_kcontrol_new snd_via8233_pcmdxs_volume_control __devinitdata = {
.name = "PCM Playback Volume",
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
SNDRV_CTL_ELEM_ACCESS_TLV_READ),
.info = snd_via8233_dxs_volume_info,
.get = snd_via8233_pcmdxs_volume_get,
.put = snd_via8233_pcmdxs_volume_put,
.tlv = { .p = db_scale_dxs }
};
static struct snd_kcontrol_new snd_via8233_dxs_volume_control __devinitdata = {
.name = "VIA DXS Playback Volume",
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
SNDRV_CTL_ELEM_ACCESS_TLV_READ),
.count = 4,
.info = snd_via8233_dxs_volume_info,
.get = snd_via8233_dxs_volume_get,
.put = snd_via8233_dxs_volume_put,
.tlv = { .p = db_scale_dxs }
};
/*