96 lines
4.3 KiB
C
96 lines
4.3 KiB
C
/*
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* Copyright (c) by Jaroslav Kysela <perex@perex.cz>
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* Universal interface for Audio Codec '97
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*
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* For more details look to AC '97 component specification revision 2.2
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* by Intel Corporation (http://developer.intel.com).
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*
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#define AC97_SINGLE_VALUE(reg,shift,mask,invert) \
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((reg) | ((shift) << 8) | ((shift) << 12) | ((mask) << 16) | \
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((invert) << 24))
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#define AC97_PAGE_SINGLE_VALUE(reg,shift,mask,invert,page) \
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(AC97_SINGLE_VALUE(reg,shift,mask,invert) | (1<<25) | ((page) << 26))
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#define AC97_SINGLE(xname, reg, shift, mask, invert) \
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{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
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.info = snd_ac97_info_volsw, \
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.get = snd_ac97_get_volsw, .put = snd_ac97_put_volsw, \
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.private_value = AC97_SINGLE_VALUE(reg, shift, mask, invert) }
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#define AC97_PAGE_SINGLE(xname, reg, shift, mask, invert, page) \
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{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
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.info = snd_ac97_info_volsw, \
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.get = snd_ac97_get_volsw, .put = snd_ac97_put_volsw, \
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.private_value = AC97_PAGE_SINGLE_VALUE(reg, shift, mask, invert, page) }
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#define AC97_DOUBLE(xname, reg, shift_left, shift_right, mask, invert) \
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{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
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.info = snd_ac97_info_volsw, \
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.get = snd_ac97_get_volsw, .put = snd_ac97_put_volsw, \
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.private_value = (reg) | ((shift_left) << 8) | ((shift_right) << 12) | ((mask) << 16) | ((invert) << 24) }
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/* enum control */
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struct ac97_enum {
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unsigned char reg;
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unsigned char shift_l;
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unsigned char shift_r;
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unsigned short mask;
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const char **texts;
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};
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#define AC97_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xmask, xtexts) \
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{ .reg = xreg, .shift_l = xshift_l, .shift_r = xshift_r, \
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.mask = xmask, .texts = xtexts }
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#define AC97_ENUM_SINGLE(xreg, xshift, xmask, xtexts) \
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AC97_ENUM_DOUBLE(xreg, xshift, xshift, xmask, xtexts)
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#define AC97_ENUM(xname, xenum) \
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{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
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.info = snd_ac97_info_enum_double, \
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.get = snd_ac97_get_enum_double, .put = snd_ac97_put_enum_double, \
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.private_value = (unsigned long)&xenum }
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/* ac97_codec.c */
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static const struct snd_kcontrol_new snd_ac97_controls_3d[];
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static const struct snd_kcontrol_new snd_ac97_controls_spdif[];
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static struct snd_kcontrol *snd_ac97_cnew(const struct snd_kcontrol_new *_template,
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struct snd_ac97 * ac97);
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static int snd_ac97_info_volsw(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_info *uinfo);
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static int snd_ac97_get_volsw(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol);
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static int snd_ac97_put_volsw(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol);
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static int snd_ac97_try_bit(struct snd_ac97 * ac97, int reg, int bit);
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static int snd_ac97_remove_ctl(struct snd_ac97 *ac97, const char *name,
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const char *suffix);
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static int snd_ac97_rename_ctl(struct snd_ac97 *ac97, const char *src,
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const char *dst, const char *suffix);
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static int snd_ac97_swap_ctl(struct snd_ac97 *ac97, const char *s1,
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const char *s2, const char *suffix);
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static void snd_ac97_rename_vol_ctl(struct snd_ac97 *ac97, const char *src,
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const char *dst);
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#ifdef CONFIG_PM
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static void snd_ac97_restore_status(struct snd_ac97 *ac97);
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static void snd_ac97_restore_iec958(struct snd_ac97 *ac97);
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#endif
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static int snd_ac97_info_enum_double(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_info *uinfo);
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static int snd_ac97_get_enum_double(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol);
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static int snd_ac97_put_enum_double(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol);
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