2 * Copyright (c) by Jaroslav Kysela <perex@perex.cz>
3 * Universal interface for Audio Codec '97
5 * For more details look to AC '97 component specification revision 2.2
6 * by Intel Corporation (http://developer.intel.com).
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
25 #define AC97_SINGLE_VALUE(reg,shift,mask,invert) \
26 ((reg) | ((shift) << 8) | ((shift) << 12) | ((mask) << 16) | \
28 #define AC97_PAGE_SINGLE_VALUE(reg,shift,mask,invert,page) \
29 (AC97_SINGLE_VALUE(reg,shift,mask,invert) | (1<<25) | ((page) << 26))
30 #define AC97_SINGLE(xname, reg, shift, mask, invert) \
31 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
32 .info = snd_ac97_info_volsw, \
33 .get = snd_ac97_get_volsw, .put = snd_ac97_put_volsw, \
34 .private_value = AC97_SINGLE_VALUE(reg, shift, mask, invert) }
35 #define AC97_PAGE_SINGLE(xname, reg, shift, mask, invert, page) \
36 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
37 .info = snd_ac97_info_volsw, \
38 .get = snd_ac97_get_volsw, .put = snd_ac97_put_volsw, \
39 .private_value = AC97_PAGE_SINGLE_VALUE(reg, shift, mask, invert, page) }
40 #define AC97_DOUBLE(xname, reg, shift_left, shift_right, mask, invert) \
41 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
42 .info = snd_ac97_info_volsw, \
43 .get = snd_ac97_get_volsw, .put = snd_ac97_put_volsw, \
44 .private_value = (reg) | ((shift_left) << 8) | ((shift_right) << 12) | ((mask) << 16) | ((invert) << 24) }
49 unsigned char shift_l;
50 unsigned char shift_r;
55 #define AC97_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xmask, xtexts) \
56 { .reg = xreg, .shift_l = xshift_l, .shift_r = xshift_r, \
57 .mask = xmask, .texts = xtexts }
58 #define AC97_ENUM_SINGLE(xreg, xshift, xmask, xtexts) \
59 AC97_ENUM_DOUBLE(xreg, xshift, xshift, xmask, xtexts)
60 #define AC97_ENUM(xname, xenum) \
61 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
62 .info = snd_ac97_info_enum_double, \
63 .get = snd_ac97_get_enum_double, .put = snd_ac97_put_enum_double, \
64 .private_value = (unsigned long)&xenum }
67 static const struct snd_kcontrol_new snd_ac97_controls_3d[];
68 static const struct snd_kcontrol_new snd_ac97_controls_spdif[];
69 static struct snd_kcontrol *snd_ac97_cnew(const struct snd_kcontrol_new *_template,
70 struct snd_ac97 * ac97);
71 static int snd_ac97_info_volsw(struct snd_kcontrol *kcontrol,
72 struct snd_ctl_elem_info *uinfo);
73 static int snd_ac97_get_volsw(struct snd_kcontrol *kcontrol,
74 struct snd_ctl_elem_value *ucontrol);
75 static int snd_ac97_put_volsw(struct snd_kcontrol *kcontrol,
76 struct snd_ctl_elem_value *ucontrol);
77 static int snd_ac97_try_bit(struct snd_ac97 * ac97, int reg, int bit);
78 static int snd_ac97_remove_ctl(struct snd_ac97 *ac97, const char *name,
80 static int snd_ac97_rename_ctl(struct snd_ac97 *ac97, const char *src,
81 const char *dst, const char *suffix);
82 static int snd_ac97_swap_ctl(struct snd_ac97 *ac97, const char *s1,
83 const char *s2, const char *suffix);
84 static void snd_ac97_rename_vol_ctl(struct snd_ac97 *ac97, const char *src,
87 static void snd_ac97_restore_status(struct snd_ac97 *ac97);
88 static void snd_ac97_restore_iec958(struct snd_ac97 *ac97);
90 static int snd_ac97_info_enum_double(struct snd_kcontrol *kcontrol,
91 struct snd_ctl_elem_info *uinfo);
92 static int snd_ac97_get_enum_double(struct snd_kcontrol *kcontrol,
93 struct snd_ctl_elem_value *ucontrol);
94 static int snd_ac97_put_enum_double(struct snd_kcontrol *kcontrol,
95 struct snd_ctl_elem_value *ucontrol);