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Commit bfe9fc8a authored by Raymond Yau's avatar Raymond Yau Committed by Takashi Iwai
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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: default avatarRaymond Yau <superquad.vortex2@gmail.com>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent df1fe132

sound/pci/emu10k1/emufx.c

+5 −0
Original line number Diff line number Diff line
@@ -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