sound/isa/gus/gus_mixer.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
   4  *  Routines for control of ICS 2101 chip and "mixer" in GF1 chip
   5  */
   6
   7 #include <linux/time.h>
   8 #include <linux/wait.h>
   9 #include <sound/core.h>
  10 #include <sound/control.h>
  11 #include <sound/gus.h>
  12
  13 /*
  14  *
  15  */
  16
  17 #define GF1_SINGLE(xname, xindex, shift, invert) \
  18 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
  19   .info = snd_gf1_info_single, \
  20   .get = snd_gf1_get_single, .put = snd_gf1_put_single, \
  21   .private_value = shift | (invert << 8) }
  22
  23 #define snd_gf1_info_single     snd_ctl_boolean_mono_info
  24
  25 static int snd_gf1_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
  26 {
  27         struct snd_gus_card *gus = snd_kcontrol_chip(kcontrol);
  28         int shift = kcontrol->private_value & 0xff;
  29         int invert = (kcontrol->private_value >> 8) & 1;
  30
  31         ucontrol->value.integer.value[0] = (gus->mix_cntrl_reg >> shift) & 1;
  32         if (invert)
  33                 ucontrol->value.integer.value[0] ^= 1;
  34         return 0;
  35 }
  36
  37 static int snd_gf1_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
  38 {
  39         struct snd_gus_card *gus = snd_kcontrol_chip(kcontrol);
  40         unsigned long flags;
  41         int shift = kcontrol->private_value & 0xff;
  42         int invert = (kcontrol->private_value >> 8) & 1;
  43         int change;
  44         unsigned char oval, nval;
  45
  46         nval = ucontrol->value.integer.value[0] & 1;
  47         if (invert)
  48                 nval ^= 1;
  49         nval <<= shift;
  50         spin_lock_irqsave(&gus->reg_lock, flags);
  51         oval = gus->mix_cntrl_reg;
  52         nval = (oval & ~(1 << shift)) | nval;
  53         change = nval != oval;
  54         outb(gus->mix_cntrl_reg = nval, GUSP(gus, MIXCNTRLREG));
  55         outb(gus->gf1.active_voice = 0, GUSP(gus, GF1PAGE));
  56         spin_unlock_irqrestore(&gus->reg_lock, flags);
  57         return change;
  58 }
  59
  60 #define ICS_DOUBLE(xname, xindex, addr) \
  61 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
  62   .info = snd_ics_info_double, \
  63   .get = snd_ics_get_double, .put = snd_ics_put_double, \
  64   .private_value = addr }
  65
  66 static int snd_ics_info_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
  67 {
  68         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
  69         uinfo->count = 2;
  70         uinfo->value.integer.min = 0;
  71         uinfo->value.integer.max = 127;
  72         return 0;
  73 }
  74
  75 static int snd_ics_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
  76 {
  77         struct snd_gus_card *gus = snd_kcontrol_chip(kcontrol);
  78         unsigned long flags;
  79         int addr = kcontrol->private_value & 0xff;
  80         unsigned char left, right;
  81
  82         spin_lock_irqsave(&gus->reg_lock, flags);
  83         left = gus->gf1.ics_regs[addr][0];
  84         right = gus->gf1.ics_regs[addr][1];
  85         spin_unlock_irqrestore(&gus->reg_lock, flags);
  86         ucontrol->value.integer.value[0] = left & 127;
  87         ucontrol->value.integer.value[1] = right & 127;
  88         return 0;
  89 }
  90
  91 static int snd_ics_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
  92 {
  93         struct snd_gus_card *gus = snd_kcontrol_chip(kcontrol);
  94         unsigned long flags;
  95         int addr = kcontrol->private_value & 0xff;
  96         int change;
  97         unsigned char val1, val2, oval1, oval2;
  98
  99         val1 = ucontrol->value.integer.value[0] & 127;
 100         val2 = ucontrol->value.integer.value[1] & 127;
 101         spin_lock_irqsave(&gus->reg_lock, flags);
 102         oval1 = gus->gf1.ics_regs[addr][0];
 103         oval2 = gus->gf1.ics_regs[addr][1];
 104         change = val1 != oval1 || val2 != oval2;
 105         gus->gf1.ics_regs[addr][0] = val1;
 106         gus->gf1.ics_regs[addr][1] = val2;
 107         if (gus->ics_flag && gus->ics_flipped &&
 108             (addr == SNDRV_ICS_GF1_DEV || addr == SNDRV_ICS_MASTER_DEV))
 109                 swap(val1, val2);
 110         addr <<= 3;
 111         outb(addr | 0, GUSP(gus, MIXCNTRLPORT));
 112         outb(1, GUSP(gus, MIXDATAPORT));
 113         outb(addr | 2, GUSP(gus, MIXCNTRLPORT));
 114         outb((unsigned char) val1, GUSP(gus, MIXDATAPORT));
 115         outb(addr | 1, GUSP(gus, MIXCNTRLPORT));
 116         outb(2, GUSP(gus, MIXDATAPORT));
 117         outb(addr | 3, GUSP(gus, MIXCNTRLPORT));
 118         outb((unsigned char) val2, GUSP(gus, MIXDATAPORT));
 119         spin_unlock_irqrestore(&gus->reg_lock, flags);
 120         return change;
 121 }
 122
 123 static const struct snd_kcontrol_new snd_gf1_controls[] = {
 124 GF1_SINGLE("Master Playback Switch", 0, 1, 1),
 125 GF1_SINGLE("Line Switch", 0, 0, 1),
 126 GF1_SINGLE("Mic Switch", 0, 2, 0)
 127 };
 128
 129 static const struct snd_kcontrol_new snd_ics_controls[] = {
 130 GF1_SINGLE("Master Playback Switch", 0, 1, 1),
 131 ICS_DOUBLE("Master Playback Volume", 0, SNDRV_ICS_MASTER_DEV),
 132 ICS_DOUBLE("Synth Playback Volume", 0, SNDRV_ICS_GF1_DEV),
 133 GF1_SINGLE("Line Switch", 0, 0, 1),
 134 ICS_DOUBLE("Line Playback Volume", 0, SNDRV_ICS_LINE_DEV),
 135 GF1_SINGLE("Mic Switch", 0, 2, 0),
 136 ICS_DOUBLE("Mic Playback Volume", 0, SNDRV_ICS_MIC_DEV),
 137 ICS_DOUBLE("CD Playback Volume", 0, SNDRV_ICS_CD_DEV)
 138 };
 139
 140 int snd_gf1_new_mixer(struct snd_gus_card * gus)
 141 {
 142         struct snd_card *card;
 143         unsigned int idx, max;
 144         int err;
 145
 146         if (snd_BUG_ON(!gus))
 147                 return -EINVAL;
 148         card = gus->card;
 149         if (snd_BUG_ON(!card))
 150                 return -EINVAL;
 151
 152         if (gus->ics_flag)
 153                 snd_component_add(card, "ICS2101");
 154         if (card->mixername[0] == '\0') {
 155                 strcpy(card->mixername, gus->ics_flag ? "GF1,ICS2101" : "GF1");
 156         } else {
 157                 if (gus->ics_flag)
 158                         strcat(card->mixername, ",ICS2101");
 159                 strcat(card->mixername, ",GF1");
 160         }
 161
 162         if (!gus->ics_flag) {
 163                 max = gus->ess_flag ? 1 : ARRAY_SIZE(snd_gf1_controls);
 164                 for (idx = 0; idx < max; idx++) {
 165                         if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_gf1_controls[idx], gus))) < 0)
 166                                 return err;
 167                 }
 168         } else {
 169                 for (idx = 0; idx < ARRAY_SIZE(snd_ics_controls); idx++) {
 170                         if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_ics_controls[idx], gus))) < 0)
 171                                 return err;
 172                 }
 173         }
 174         return 0;
 175 }