LXR linux/sound/pci/ac97/ac97

   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 */
  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);
  86#ifdef CONFIG_PM
  87static void snd_ac97_restore_status(struct snd_ac97 *ac97);
  88static void snd_ac97_restore_iec958(struct snd_ac97 *ac97);
  89#endif
  90static int snd_ac97_info_enum_double(struct snd_kcontrol *kcontrol,
  91                                     struct snd_ctl_elem_info *uinfo);
  92static int snd_ac97_get_enum_double(struct snd_kcontrol *kcontrol,
  93                                    struct snd_ctl_elem_value *ucontrol);
  94static int snd_ac97_put_enum_double(struct snd_kcontrol *kcontrol,
  95                                    struct snd_ctl_elem_value *ucontrol);
  96