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>
diff --git a/sound/pci/emu10k1/emufx.c b/sound/pci/emu10k1/emufx.c
index 7a94014..dae4050 100644
--- a/sound/pci/emu10k1/emufx.c
+++ b/sound/pci/emu10k1/emufx.c
@@ -303,6 +303,9 @@
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 @@
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 @@
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