release/src-rt-6.x/linux/linux-2.6/sound/isa/gus/gus_mixer.c

   1 /*
   2  *  Copyright (c) by Jaroslav Kysela <perex@suse.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 <sound/driver.h>
  23 #include <linux/time.h>
  24 #include <linux/wait.h>
  25 #include <sound/core.h>
  26 #include <sound/control.h>
  27 #include <sound/gus.h>
  28
  29 /*
  30  *
  31  */
  32
  33 #define GF1_SINGLE(xname, xindex, shift, invert) \
  34 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
  35   .info = snd_gf1_info_single, \
  36   .get = snd_gf1_get_single, .put = snd_gf1_put_single, \
  37   .private_value = shift | (invert << 8) }
  38
  39 static int snd_gf1_info_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
  40 {
  41         uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
  42         uinfo->count = 1;
  43         uinfo->value.integer.min = 0;
  44         uinfo->value.integer.max = 1;
  45         return 0;
  46 }
  47
  48 static int snd_gf1_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
  49 {
  50         struct snd_gus_card *gus = snd_kcontrol_chip(kcontrol);
  51         int shift = kcontrol->private_value & 0xff;
  52         int invert = (kcontrol->private_value >> 8) & 1;
  53
  54         ucontrol->value.integer.value[0] = (gus->mix_cntrl_reg >> shift) & 1;
  55         if (invert)
  56                 ucontrol->value.integer.value[0] ^= 1;
  57         return 0;
  58 }
  59
  60 static int snd_gf1_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
  61 {
  62         struct snd_gus_card *gus = snd_kcontrol_chip(kcontrol);
  63         unsigned long flags;
  64         int shift = kcontrol->private_value & 0xff;
  65         int invert = (kcontrol->private_value >> 8) & 1;
  66         int change;
  67         unsigned char oval, nval;
  68
  69         nval = ucontrol->value.integer.value[0] & 1;
  70         if (invert)
  71                 nval ^= 1;
  72         nval <<= shift;
  73         spin_lock_irqsave(&gus->reg_lock, flags);
  74         oval = gus->mix_cntrl_reg;
  75         nval = (oval & ~(1 << shift)) | nval;
  76         change = nval != oval;
  77         outb(gus->mix_cntrl_reg = nval, GUSP(gus, MIXCNTRLREG));
  78         outb(gus->gf1.active_voice = 0, GUSP(gus, GF1PAGE));
  79         spin_unlock_irqrestore(&gus->reg_lock, flags);
  80         return change;
  81 }
  82
  83 #define ICS_DOUBLE(xname, xindex, addr) \
  84 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
  85   .info = snd_ics_info_double, \
  86   .get = snd_ics_get_double, .put = snd_ics_put_double, \
  87   .private_value = addr }
  88
  89 static int snd_ics_info_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
  90 {
  91         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
  92         uinfo->count = 2;
  93         uinfo->value.integer.min = 0;
  94         uinfo->value.integer.max = 127;
  95         return 0;
  96 }
  97
  98 static int snd_ics_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
  99 {
 100         struct snd_gus_card *gus = snd_kcontrol_chip(kcontrol);
 101         unsigned long flags;
 102         int addr = kcontrol->private_value & 0xff;
 103         unsigned char left, right;
 104
 105         spin_lock_irqsave(&gus->reg_lock, flags);
 106         left = gus->gf1.ics_regs[addr][0];
 107         right = gus->gf1.ics_regs[addr][1];
 108         spin_unlock_irqrestore(&gus->reg_lock, flags);
 109         ucontrol->value.integer.value[0] = left & 127;
 110         ucontrol->value.integer.value[1] = right & 127;
 111         return 0;
 112 }
 113
 114 static int snd_ics_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 115 {
 116         struct snd_gus_card *gus = snd_kcontrol_chip(kcontrol);
 117         unsigned long flags;
 118         int addr = kcontrol->private_value & 0xff;
 119         int change;
 120         unsigned char val1, val2, oval1, oval2, tmp;
 121
 122         val1 = ucontrol->value.integer.value[0] & 127;
 123         val2 = ucontrol->value.integer.value[1] & 127;
 124         spin_lock_irqsave(&gus->reg_lock, flags);
 125         oval1 = gus->gf1.ics_regs[addr][0];
 126         oval2 = gus->gf1.ics_regs[addr][1];
 127         change = val1 != oval1 || val2 != oval2;
 128         gus->gf1.ics_regs[addr][0] = val1;
 129         gus->gf1.ics_regs[addr][1] = val2;
 130         if (gus->ics_flag && gus->ics_flipped &&
 131             (addr == SNDRV_ICS_GF1_DEV || addr == SNDRV_ICS_MASTER_DEV)) {
 132                 tmp = val1;
 133                 val1 = val2;
 134                 val2 = tmp;
 135         }
 136         addr <<= 3;
 137         outb(addr | 0, GUSP(gus, MIXCNTRLPORT));
 138         outb(1, GUSP(gus, MIXDATAPORT));
 139         outb(addr | 2, GUSP(gus, MIXCNTRLPORT));
 140         outb((unsigned char) val1, GUSP(gus, MIXDATAPORT));
 141         outb(addr | 1, GUSP(gus, MIXCNTRLPORT));
 142         outb(2, GUSP(gus, MIXDATAPORT));
 143         outb(addr | 3, GUSP(gus, MIXCNTRLPORT));
 144         outb((unsigned char) val2, GUSP(gus, MIXDATAPORT));
 145         spin_unlock_irqrestore(&gus->reg_lock, flags);
 146         return change;
 147 }
 148
 149 static struct snd_kcontrol_new snd_gf1_controls[] = {
 150 GF1_SINGLE("Master Playback Switch", 0, 1, 1),
 151 GF1_SINGLE("Line Switch", 0, 0, 1),
 152 GF1_SINGLE("Mic Switch", 0, 2, 0)
 153 };
 154
 155 static struct snd_kcontrol_new snd_ics_controls[] = {
 156 GF1_SINGLE("Master Playback Switch", 0, 1, 1),
 157 ICS_DOUBLE("Master Playback Volume", 0, SNDRV_ICS_MASTER_DEV),
 158 ICS_DOUBLE("Synth Playback Volume", 0, SNDRV_ICS_GF1_DEV),
 159 GF1_SINGLE("Line Switch", 0, 0, 1),
 160 ICS_DOUBLE("Line Playback Volume", 0, SNDRV_ICS_LINE_DEV),
 161 GF1_SINGLE("Mic Switch", 0, 2, 0),
 162 ICS_DOUBLE("Mic Playback Volume", 0, SNDRV_ICS_MIC_DEV),
 163 ICS_DOUBLE("CD Playback Volume", 0, SNDRV_ICS_CD_DEV)
 164 };
 165
 166 int snd_gf1_new_mixer(struct snd_gus_card * gus)
 167 {
 168         struct snd_card *card;
 169         unsigned int idx, max;
 170         int err;
 171
 172         snd_assert(gus != NULL, return -EINVAL);
 173         card = gus->card;
 174         snd_assert(card != NULL, return -EINVAL);
 175
 176         if (gus->ics_flag)
 177                 snd_component_add(card, "ICS2101");
 178         if (card->mixername[0] == '\0') {
 179                 strcpy(card->mixername, gus->ics_flag ? "GF1,ICS2101" : "GF1");
 180         } else {
 181                 if (gus->ics_flag)
 182                         strcat(card->mixername, ",ICS2101");
 183                 strcat(card->mixername, ",GF1");
 184         }
 185
 186         if (!gus->ics_flag) {
 187                 max = gus->ess_flag ? 1 : ARRAY_SIZE(snd_gf1_controls);
 188                 for (idx = 0; idx < max; idx++) {
 189                         if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_gf1_controls[idx], gus))) < 0)
 190                                 return err;
 191                 }
 192         } else {
 193                 for (idx = 0; idx < ARRAY_SIZE(snd_ics_controls); idx++) {
 194                         if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_ics_controls[idx], gus))) < 0)
 195                                 return err;
 196                 }
 197         }
 198         return 0;
 199 }