1 /*
2  *  Copyright (c) by Jaroslav Kysela <perex@perex.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 */
47 struct 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 */
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,
79 			       const char *suffix);
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,
85 				    const char *dst);
86 #ifdef CONFIG_PM
87 static void snd_ac97_restore_status(struct snd_ac97 *ac97);
88 static void snd_ac97_restore_iec958(struct snd_ac97 *ac97);
89 #endif
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);
96