sound/pcmcia/vx/vxp_mixer.c

   1 /*
   2  * Driver for Digigram VXpocket soundcards
   3  *
   4  * VX-pocket mixer
   5  *
   6  * Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de>
   7  *
   8  *   This program is free software; you can redistribute it and/or modify
   9  *   it under the terms of the GNU General Public License as published by
  10  *   the Free Software Foundation; either version 2 of the License, or
  11  *   (at your option) any later version.
  12  *
  13  *   This program is distributed in the hope that it will be useful,
  14  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *   GNU General Public License for more details.
  17  *
  18  *   You should have received a copy of the GNU General Public License
  19  *   along with this program; if not, write to the Free Software
  20  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  21  */
  22
  23 #include <sound/core.h>
  24 #include <sound/control.h>
  25 #include <sound/tlv.h>
  26 #include "vxpocket.h"
  27
  28 #define MIC_LEVEL_MIN   0
  29 #define MIC_LEVEL_MAX   8
  30
  31 /*
  32  * mic level control (for VXPocket)
  33  */
  34 static int vx_mic_level_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
  35 {
  36         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
  37         uinfo->count = 1;
  38         uinfo->value.integer.min = 0;
  39         uinfo->value.integer.max = MIC_LEVEL_MAX;
  40         return 0;
  41 }
  42
  43 static int vx_mic_level_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
  44 {
  45         struct vx_core *_chip = snd_kcontrol_chip(kcontrol);
  46         struct snd_vxpocket *chip = (struct snd_vxpocket *)_chip;
  47         ucontrol->value.integer.value[0] = chip->mic_level;
  48         return 0;
  49 }
  50
  51 static int vx_mic_level_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
  52 {
  53         struct vx_core *_chip = snd_kcontrol_chip(kcontrol);
  54         struct snd_vxpocket *chip = (struct snd_vxpocket *)_chip;
  55         unsigned int val = ucontrol->value.integer.value[0];
  56
  57         if (val > MIC_LEVEL_MAX)
  58                 return -EINVAL;
  59         mutex_lock(&_chip->mixer_mutex);
  60         if (chip->mic_level != ucontrol->value.integer.value[0]) {
  61                 vx_set_mic_level(_chip, ucontrol->value.integer.value[0]);
  62                 chip->mic_level = ucontrol->value.integer.value[0];
  63                 mutex_unlock(&_chip->mixer_mutex);
  64                 return 1;
  65         }
  66         mutex_unlock(&_chip->mixer_mutex);
  67         return 0;
  68 }
  69
  70 static const DECLARE_TLV_DB_SCALE(db_scale_mic, -21, 3, 0);
  71
  72 static struct snd_kcontrol_new vx_control_mic_level = {
  73         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
  74         .access =       (SNDRV_CTL_ELEM_ACCESS_READWRITE |
  75                          SNDRV_CTL_ELEM_ACCESS_TLV_READ),
  76         .name =         "Mic Capture Volume",
  77         .info =         vx_mic_level_info,
  78         .get =          vx_mic_level_get,
  79         .put =          vx_mic_level_put,
  80         .tlv = { .p = db_scale_mic },
  81 };
  82
  83 /*
  84  * mic boost level control (for VXP440)
  85  */
  86 #define vx_mic_boost_info               snd_ctl_boolean_mono_info
  87
  88 static int vx_mic_boost_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
  89 {
  90         struct vx_core *_chip = snd_kcontrol_chip(kcontrol);
  91         struct snd_vxpocket *chip = (struct snd_vxpocket *)_chip;
  92         ucontrol->value.integer.value[0] = chip->mic_level;
  93         return 0;
  94 }
  95
  96 static int vx_mic_boost_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
  97 {
  98         struct vx_core *_chip = snd_kcontrol_chip(kcontrol);
  99         struct snd_vxpocket *chip = (struct snd_vxpocket *)_chip;
 100         int val = !!ucontrol->value.integer.value[0];
 101         mutex_lock(&_chip->mixer_mutex);
 102         if (chip->mic_level != val) {
 103                 vx_set_mic_boost(_chip, val);
 104                 chip->mic_level = val;
 105                 mutex_unlock(&_chip->mixer_mutex);
 106                 return 1;
 107         }
 108         mutex_unlock(&_chip->mixer_mutex);
 109         return 0;
 110 }
 111
 112 static struct snd_kcontrol_new vx_control_mic_boost = {
 113         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
 114         .name =         "Mic Boost",
 115         .info =         vx_mic_boost_info,
 116         .get =          vx_mic_boost_get,
 117         .put =          vx_mic_boost_put,
 118 };
 119
 120
 121 int vxp_add_mic_controls(struct vx_core *_chip)
 122 {
 123         struct snd_vxpocket *chip = (struct snd_vxpocket *)_chip;
 124         int err;
 125
 126         /* mute input levels */
 127         chip->mic_level = 0;
 128         switch (_chip->type) {
 129         case VX_TYPE_VXPOCKET:
 130                 vx_set_mic_level(_chip, 0);
 131                 break;
 132         case VX_TYPE_VXP440:
 133                 vx_set_mic_boost(_chip, 0);
 134                 break;
 135         }
 136
 137         /* mic level */
 138         switch (_chip->type) {
 139         case VX_TYPE_VXPOCKET:
 140                 if ((err = snd_ctl_add(_chip->card, snd_ctl_new1(&vx_control_mic_level, chip))) < 0)
 141                         return err;
 142                 break;
 143         case VX_TYPE_VXP440:
 144                 if ((err = snd_ctl_add(_chip->card, snd_ctl_new1(&vx_control_mic_boost, chip))) < 0)
 145                         return err;
 146                 break;
 147         }
 148
 149         return 0;
 150 }
 151