diff options
Diffstat (limited to 'sound/pci/emu10k1')
| -rw-r--r-- | sound/pci/emu10k1/emu10k1_main.c | 2 | ||||
| -rw-r--r-- | sound/pci/emu10k1/tina2.h | 36 |
2 files changed, 38 insertions, 0 deletions
diff --git a/sound/pci/emu10k1/emu10k1_main.c b/sound/pci/emu10k1/emu10k1_main.c index 541aad6c712..2d1ebe8c6b4 100644 --- a/sound/pci/emu10k1/emu10k1_main.c +++ b/sound/pci/emu10k1/emu10k1_main.c @@ -40,6 +40,7 @@ #include <sound/core.h> #include <sound/emu10k1.h> #include "p16v.h" +#include "tina2.h" #if 0 MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>, Creative Labs, Inc."); @@ -600,6 +601,7 @@ static int __devinit snd_emu10k1_cardbus_init(emu10k1_t * emu) outl(0x0090007f, special_port); value = inl(special_port); + snd_emu10k1_ptr20_write(emu, TINA2_VOLUME, 0, 0xfefefefe); /* Defaults to 0x30303030 */ return 0; } diff --git a/sound/pci/emu10k1/tina2.h b/sound/pci/emu10k1/tina2.h new file mode 100644 index 00000000000..5c43abf03e8 --- /dev/null +++ b/sound/pci/emu10k1/tina2.h @@ -0,0 +1,36 @@ +/* + * Copyright (c) by James Courtier-Dutton <James@superbug.demon.co.uk> + * Driver p16v chips + * Version: 0.21 + * + * + * This code was initally based on code from ALSA's emu10k1x.c which is: + * Copyright (c) by Francisco Moraes <fmoraes@nc.rr.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + +/********************************************************************************************************/ +/* Audigy2 Tina2 (notebook) pointer-offset register set, accessed through the PTR2 and DATA2 registers */ +/********************************************************************************************************/ + +#define TINA2_VOLUME 0x71 /* Attenuate playback volume to prevent distortion. */ + /* The windows driver does not use this register, + * so it must use some other attenuation method. + * Without this, the output is 12dB too loud, + * resulting in distortion. + */ + |