linux/sound/isa/gus/gus_mixer.c
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   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
  40static 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
  52static 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
  81static 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
  90static 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
 106static 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
 141static struct snd_kcontrol_new snd_gf1_controls[] = {
 142GF1_SINGLE("Master Playback Switch", 0, 1, 1),
 143GF1_SINGLE("Line Switch", 0, 0, 1),
 144GF1_SINGLE("Mic Switch", 0, 2, 0)
 145};
 146
 147static struct snd_kcontrol_new snd_ics_controls[] = {
 148GF1_SINGLE("Master Playback Switch", 0, 1, 1),
 149ICS_DOUBLE("Master Playback Volume", 0, SNDRV_ICS_MASTER_DEV),
 150ICS_DOUBLE("Synth Playback Volume", 0, SNDRV_ICS_GF1_DEV),
 151GF1_SINGLE("Line Switch", 0, 0, 1),
 152ICS_DOUBLE("Line Playback Volume", 0, SNDRV_ICS_LINE_DEV),
 153GF1_SINGLE("Mic Switch", 0, 2, 0),
 154ICS_DOUBLE("Mic Playback Volume", 0, SNDRV_ICS_MIC_DEV),
 155ICS_DOUBLE("CD Playback Volume", 0, SNDRV_ICS_CD_DEV)
 156};
 157
 158int 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}
 194