1/*
2 *  Copyright (c) by Jaroslav Kysela <perex@suse.cz>
3 *  Universal interface for Audio Codec '97
4 *
5 *  For more details look to AC '97 component specification revision 2.2
6 *  by Intel Corporation (http://developer.intel.com).
7 *
8 *
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.
13 *
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.
18 *
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
22 *
23 */
24
25#define AC97_SINGLE_VALUE(reg,shift,mask,invert) \
26	((reg) | ((shift) << 8) | ((shift) << 12) | ((mask) << 16) | \
27	 ((invert) << 24))
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) }
45
46/* enum control */
47struct ac97_enum {
48	unsigned char reg;
49	unsigned char shift_l;
50	unsigned char shift_r;
51	unsigned short mask;
52	const char **texts;
53};
54
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 }
65
66/* ac97_codec.c */
67static const struct snd_kcontrol_new snd_ac97_controls_3d[];
68static const struct snd_kcontrol_new snd_ac97_controls_spdif[];
69static struct snd_kcontrol *snd_ac97_cnew(const struct snd_kcontrol_new *_template,
70					  struct snd_ac97 * ac97);
71static int snd_ac97_info_volsw(struct snd_kcontrol *kcontrol,
72			       struct snd_ctl_elem_info *uinfo);
73static int snd_ac97_get_volsw(struct snd_kcontrol *kcontrol,
74			      struct snd_ctl_elem_value *ucontrol);
75static int snd_ac97_put_volsw(struct snd_kcontrol *kcontrol,
76			      struct snd_ctl_elem_value *ucontrol);
77static int snd_ac97_try_bit(struct snd_ac97 * ac97, int reg, int bit);
78static int snd_ac97_remove_ctl(struct snd_ac97 *ac97, const char *name,
79			       const char *suffix);
80static int snd_ac97_rename_ctl(struct snd_ac97 *ac97, const char *src,
81			       const char *dst, const char *suffix);
82static int snd_ac97_swap_ctl(struct snd_ac97 *ac97, const char *s1,
83			     const char *s2, const char *suffix);
84static void snd_ac97_rename_vol_ctl(struct snd_ac97 *ac97, const char *src,
85				    const char *dst);
86static void snd_ac97_restore_status(struct snd_ac97 *ac97);
87static void snd_ac97_restore_iec958(struct snd_ac97 *ac97);
88static int snd_ac97_info_enum_double(struct snd_kcontrol *kcontrol,
89				     struct snd_ctl_elem_info *uinfo);
90static int snd_ac97_get_enum_double(struct snd_kcontrol *kcontrol,
91				    struct snd_ctl_elem_value *ucontrol);
92static int snd_ac97_put_enum_double(struct snd_kcontrol *kcontrol,
93				    struct snd_ctl_elem_value *ucontrol);
94