release/src-rt-6.x.4708/linux/linux-2.6.36/sound/isa/gus/gus_mixer.c

   1 /*
   2  *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
   3  *  Routines for control of ICS 2101 chip and "mixer" in GF1 chip
   4  *
   5  *
   6  *   This program is free software; you can redistribute it and/or modify
   7  *   it under the terms of the GNU General Public License as published by
   8  *   the Free Software Foundation; either version 2 of the License, or
   9  *   (at your option) any later version.
  10  *
  11  *   This program is distributed in the hope that it will be useful,
  12  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *   GNU General Public License for more details.
  15  *
  16  *   You should have received a copy of the GNU General Public License
  17  *   along with this program; if not, write to the Free Software
  18  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  19  *
  20  */
  21
  22 #include <linux/time.h>
  23 #include <linux/wait.h>
  24 #include <sound/core.h>
  25 #include <sound/control.h>
  26 #include <sound/gus.h>
  27
  28 /*
  29  *
  30  */
  31
  32 #define GF1_SINGLE(xname, xindex, shift, invert) \
  33 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
  34   .info = snd_gf1_info_single, \
  35   .get = snd_gf1_get_single, .put = snd_gf1_put_single, \
  36   .private_value = shift | (invert << 8) }
  37
  38 #define snd_gf1_info_single     snd_ctl_boolean_mono_info
  39
  40 static int snd_gf1_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
  41 {
  42         struct snd_gus_card *gus = snd_kcontrol_chip(kcontrol);
  43         int shift = kcontrol->private_value & 0xff;
  44         int invert = (kcontrol->private_value >> 8) & 1;
  45
  46         ucontrol->value.integer.value[0] = (gus->mix_cntrl_reg >> shift) & 1;
  47         if (invert)
  48                 ucontrol->value.integer.value[0] ^= 1;
  49         return 0;
  50 }
  51
  52 static int snd_gf1_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
  53 {
  54         struct snd_gus_card *gus = snd_kcontrol_chip(kcontrol);
  55         unsigned long flags;
  56         int shift = kcontrol->private_value & 0xff;
  57         int invert = (kcontrol->private_value >> 8) & 1;
  58         int change;
  59         unsigned char oval, nval;
  60
  61         nval = ucontrol->value.integer.value[0] & 1;
  62         if (invert)
  63                 nval ^= 1;
  64         nval <<= shift;
  65         spin_lock_irqsave(&gus->reg_lock, flags);
  66         oval = gus->mix_cntrl_reg;
  67         nval = (oval & ~(1 << shift)) | nval;
  68         change = nval != oval;
  69         outb(gus->mix_cntrl_reg = nval, GUSP(gus, MIXCNTRLREG));
  70         outb(gus->gf1.active_voice = 0, GUSP(gus, GF1PAGE));
  71         spin_unlock_irqrestore(&gus->reg_lock, flags);
  72         return change;
  73 }
  74
  75 #define ICS_DOUBLE(xname, xindex, addr) \
  76 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
  77   .info = snd_ics_info_double, \
  78   .get = snd_ics_get_double, .put = snd_ics_put_double, \
  79   .private_value = addr }
  80
  81 static int snd_ics_info_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
  82 {
  83         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
  84         uinfo->count = 2;
  85         uinfo->value.integer.min = 0;
  86         uinfo->value.integer.max = 127;
  87         return 0;
  88 }
  89
  90 static int snd_ics_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
  91 {
  92         struct snd_gus_card *gus = snd_kcontrol_chip(kcontrol);
  93         unsigned long flags;
  94         int addr = kcontrol->private_value & 0xff;
  95         unsigned char left, right;
  96
  97         spin_lock_irqsave(&gus->reg_lock, flags);
  98         left = gus->gf1.ics_regs[addr][0];
  99         right = gus->gf1.ics_regs[addr][1];
 100         spin_unlock_irqrestore(&gus->reg_lock, flags);
 101         ucontrol->value.integer.value[0] = left & 127;
 102         ucontrol->value.integer.value[1] = right & 127;
 103         return 0;
 104 }
 105
 106 static int snd_ics_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 107 {
 108         struct snd_gus_card *gus = snd_kcontrol_chip(kcontrol);
 109         unsigned long flags;
 110         int addr = kcontrol->private_value & 0xff;
 111         int change;
 112         unsigned char val1, val2, oval1, oval2, tmp;
 113
 114         val1 = ucontrol->value.integer.value[0] & 127;
 115         val2 = ucontrol->value.integer.value[1] & 127;
 116         spin_lock_irqsave(&gus->reg_lock, flags);
 117         oval1 = gus->gf1.ics_regs[addr][0];
 118         oval2 = gus->gf1.ics_regs[addr][1];
 119         change = val1 != oval1 || val2 != oval2;
 120         gus->gf1.ics_regs[addr][0] = val1;
 121         gus->gf1.ics_regs[addr][1] = val2;
 122         if (gus->ics_flag && gus->ics_flipped &&
 123             (addr == SNDRV_ICS_GF1_DEV || addr == SNDRV_ICS_MASTER_DEV)) {
 124                 tmp = val1;
 125                 val1 = val2;
 126                 val2 = tmp;
 127         }
 128         addr <<= 3;
 129         outb(addr | 0, GUSP(gus, MIXCNTRLPORT));
 130         outb(1, GUSP(gus, MIXDATAPORT));
 131         outb(addr | 2, GUSP(gus, MIXCNTRLPORT));
 132         outb((unsigned char) val1, GUSP(gus, MIXDATAPORT));
 133         outb(addr | 1, GUSP(gus, MIXCNTRLPORT));
 134         outb(2, GUSP(gus, MIXDATAPORT));
 135         outb(addr | 3, GUSP(gus, MIXCNTRLPORT));
 136         outb((unsigned char) val2, GUSP(gus, MIXDATAPORT));
 137         spin_unlock_irqrestore(&gus->reg_lock, flags);
 138         return change;
 139 }
 140
 141 static struct snd_kcontrol_new snd_gf1_controls[] = {
 142 GF1_SINGLE("Master Playback Switch", 0, 1, 1),
 143 GF1_SINGLE("Line Switch", 0, 0, 1),
 144 GF1_SINGLE("Mic Switch", 0, 2, 0)
 145 };
 146
 147 static struct snd_kcontrol_new snd_ics_controls[] = {
 148 GF1_SINGLE("Master Playback Switch", 0, 1, 1),
 149 ICS_DOUBLE("Master Playback Volume", 0, SNDRV_ICS_MASTER_DEV),
 150 ICS_DOUBLE("Synth Playback Volume", 0, SNDRV_ICS_GF1_DEV),
 151 GF1_SINGLE("Line Switch", 0, 0, 1),
 152 ICS_DOUBLE("Line Playback Volume", 0, SNDRV_ICS_LINE_DEV),
 153 GF1_SINGLE("Mic Switch", 0, 2, 0),
 154 ICS_DOUBLE("Mic Playback Volume", 0, SNDRV_ICS_MIC_DEV),
 155 ICS_DOUBLE("CD Playback Volume", 0, SNDRV_ICS_CD_DEV)
 156 };
 157
 158 int snd_gf1_new_mixer(struct snd_gus_card * gus)
 159 {
 160         struct snd_card *card;
 161         unsigned int idx, max;
 162         int err;
 163
 164         if (snd_BUG_ON(!gus))
 165                 return -EINVAL;
 166         card = gus->card;
 167         if (snd_BUG_ON(!card))
 168                 return -EINVAL;
 169
 170         if (gus->ics_flag)
 171                 snd_component_add(card, "ICS2101");
 172         if (card->mixername[0] == '\0') {
 173                 strcpy(card->mixername, gus->ics_flag ? "GF1,ICS2101" : "GF1");
 174         } else {
 175                 if (gus->ics_flag)
 176                         strcat(card->mixername, ",ICS2101");
 177                 strcat(card->mixername, ",GF1");
 178         }
 179
 180         if (!gus->ics_flag) {
 181                 max = gus->ess_flag ? 1 : ARRAY_SIZE(snd_gf1_controls);
 182                 for (idx = 0; idx < max; idx++) {
 183                         if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_gf1_controls[idx], gus))) < 0)
 184                                 return err;
 185                 }
 186         } else {
 187                 for (idx = 0; idx < ARRAY_SIZE(snd_ics_controls); idx++) {
 188                         if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_ics_controls[idx], gus))) < 0)
 189                                 return err;
 190                 }
 191         }
 192         return 0;
 193 }