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