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authorRaymond Yau <superquad.vortex2@gmail.com>2011-05-20 14:32:04 +0800
committerTakashi Iwai <tiwai@suse.de>2011-05-20 09:08:04 +0200
commitbfe9fc8aebc997ce8bcf8ac0586c84a247812064 (patch)
treef6be5e48ad286c09c0cd0df30a1f5f5e01d9ae48 /sound/pci/emu10k1
parentdf1fe13289eca445b77471c204408bec67313be3 (diff)
downloadlinux-linaro-stable-bfe9fc8aebc997ce8bcf8ac0586c84a247812064.tar.gz
ALSA: emu10k1 - Add dB range to Bass and Treble for SB Live!
As the "Wave", "Wave Surround" or "Front" Playback Volume must be changed to 70% (i.e. -12 dB) so that distortion won't occur when increase Bass and Treble from 50% to 100%, so the maximum gain in Bass and Treble are +12 dB. Signed-off-by: Raymond Yau <superquad.vortex2@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/emu10k1')
-rw-r--r--sound/pci/emu10k1/emufx.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/sound/pci/emu10k1/emufx.c b/sound/pci/emu10k1/emufx.c
index 7a9401462c1c..dae4050ede5c 100644
--- a/sound/pci/emu10k1/emufx.c
+++ b/sound/pci/emu10k1/emufx.c
@@ -303,6 +303,9 @@ static const u32 db_table[101] = {
static const DECLARE_TLV_DB_SCALE(snd_emu10k1_db_scale1, -4000, 40, 1);
static const DECLARE_TLV_DB_LINEAR(snd_emu10k1_db_linear, TLV_DB_GAIN_MUTE, 0);
+/* EMU10K1 bass/treble db gain */
+static const DECLARE_TLV_DB_SCALE(snd_emu10k1_bass_treble_db_scale, -1200, 60, 0);
+
static const u32 onoff_table[2] = {
0x00000000, 0x00000001
};
@@ -2163,6 +2166,7 @@ static int __devinit _snd_emu10k1_init_efx(struct snd_emu10k1 *emu)
ctl->min = 0;
ctl->max = 40;
ctl->value[0] = ctl->value[1] = 20;
+ ctl->tlv = snd_emu10k1_bass_treble_db_scale;
ctl->translation = EMU10K1_GPR_TRANSLATION_BASS;
ctl = &controls[i + 1];
ctl->id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
@@ -2172,6 +2176,7 @@ static int __devinit _snd_emu10k1_init_efx(struct snd_emu10k1 *emu)
ctl->min = 0;
ctl->max = 40;
ctl->value[0] = ctl->value[1] = 20;
+ ctl->tlv = snd_emu10k1_bass_treble_db_scale;
ctl->translation = EMU10K1_GPR_TRANSLATION_TREBLE;
#define BASS_GPR 0x8c