From bfe9fc8aebc997ce8bcf8ac0586c84a247812064 Mon Sep 17 00:00:00 2001 From: Raymond Yau Date: Fri, 20 May 2011 14:32:04 +0800 Subject: [PATCH] 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 Signed-off-by: Takashi Iwai --- sound/pci/emu10k1/emufx.c | 5 +++++ 1 file changed, 5 insertions(+) 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 -- 2.20.1