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| author | Raymond Yau <superquad.vortex2@gmail.com> | 2011-05-20 14:32:04 +0800 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2011-05-20 09:08:04 +0200 |
| commit | bfe9fc8aebc997ce8bcf8ac0586c84a247812064 (patch) | |
| tree | f6be5e48ad286c09c0cd0df30a1f5f5e01d9ae48 | |
| parent | df1fe13289eca445b77471c204408bec67313be3 (diff) | |
| download | op-kernel-dev-bfe9fc8aebc997ce8bcf8ac0586c84a247812064.zip op-kernel-dev-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>
| -rw-r--r-- | sound/pci/emu10k1/emufx.c | 5 |
1 files changed, 5 insertions, 0 deletions
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 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 |
