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awilliam
GitHub Repository: awilliam/linux-vfio
 Path: blob/master/sound/pci/ac97/ac97_patch.h
10817 views
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/*

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 *  Copyright (c) by Jaroslav Kysela <[email protected]>

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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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