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sb_mixer.c

/*
 *  Copyright (c) by Jaroslav Kysela <perex@suse.cz>
 *  Routines for Sound Blaster mixer control
 *
 *
 *   This program is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation; either version 2 of the License, or
 *   (at your option) any later version.
 *
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with this program; if not, write to the Free Software
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 *
 */

#include <sound/driver.h>
#include <asm/io.h>
#include <linux/delay.h>
#include <linux/time.h>
#include <sound/core.h>
#include <sound/sb.h>
#include <sound/control.h>

#undef IO_DEBUG

void snd_sbmixer_write(sb_t *chip, unsigned char reg, unsigned char data)
{
      outb(reg, SBP(chip, MIXER_ADDR));
      udelay(10);
      outb(data, SBP(chip, MIXER_DATA));
      udelay(10);
#ifdef IO_DEBUG
      snd_printk("mixer_write 0x%x 0x%x\n", reg, data);
#endif
}

unsigned char snd_sbmixer_read(sb_t *chip, unsigned char reg)
{
      unsigned char result;

      outb(reg, SBP(chip, MIXER_ADDR));
      udelay(10);
      result = inb(SBP(chip, MIXER_DATA));
      udelay(10);
#ifdef IO_DEBUG
      snd_printk("mixer_read 0x%x 0x%x\n", reg, result);
#endif
      return result;
}

/*
 * Single channel mixer element
 */

static int snd_sbmixer_info_single(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
{
      int mask = (kcontrol->private_value >> 24) & 0xff;

      uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
      uinfo->count = 1;
      uinfo->value.integer.min = 0;
      uinfo->value.integer.max = mask;
      return 0;
}

static int snd_sbmixer_get_single(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
{
      sb_t *sb = snd_kcontrol_chip(kcontrol);
      unsigned long flags;
      int reg = kcontrol->private_value & 0xff;
      int shift = (kcontrol->private_value >> 16) & 0xff;
      int mask = (kcontrol->private_value >> 24) & 0xff;
      unsigned char val;

      spin_lock_irqsave(&sb->mixer_lock, flags);
      val = (snd_sbmixer_read(sb, reg) >> shift) & mask;
      spin_unlock_irqrestore(&sb->mixer_lock, flags);
      ucontrol->value.integer.value[0] = val;
      return 0;
}

static int snd_sbmixer_put_single(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
{
      sb_t *sb = snd_kcontrol_chip(kcontrol);
      unsigned long flags;
      int reg = kcontrol->private_value & 0xff;
      int shift = (kcontrol->private_value >> 16) & 0x07;
      int mask = (kcontrol->private_value >> 24) & 0xff;
      int change;
      unsigned char val, oval;

      val = (ucontrol->value.integer.value[0] & mask) << shift;
      spin_lock_irqsave(&sb->mixer_lock, flags);
      oval = snd_sbmixer_read(sb, reg);
      val = (oval & ~(mask << shift)) | val;
      change = val != oval;
      if (change)
            snd_sbmixer_write(sb, reg, val);
      spin_unlock_irqrestore(&sb->mixer_lock, flags);
      return change;
}

/*
 * Double channel mixer element
 */

static int snd_sbmixer_info_double(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
{
      int mask = (kcontrol->private_value >> 24) & 0xff;

      uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
      uinfo->count = 2;
      uinfo->value.integer.min = 0;
      uinfo->value.integer.max = mask;
      return 0;
}

static int snd_sbmixer_get_double(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
{
      sb_t *sb = snd_kcontrol_chip(kcontrol);
      unsigned long flags;
      int left_reg = kcontrol->private_value & 0xff;
      int right_reg = (kcontrol->private_value >> 8) & 0xff;
      int left_shift = (kcontrol->private_value >> 16) & 0x07;
      int right_shift = (kcontrol->private_value >> 19) & 0x07;
      int mask = (kcontrol->private_value >> 24) & 0xff;
      unsigned char left, right;

      spin_lock_irqsave(&sb->mixer_lock, flags);
      left = (snd_sbmixer_read(sb, left_reg) >> left_shift) & mask;
      right = (snd_sbmixer_read(sb, right_reg) >> right_shift) & mask;
      spin_unlock_irqrestore(&sb->mixer_lock, flags);
      ucontrol->value.integer.value[0] = left;
      ucontrol->value.integer.value[1] = right;
      return 0;
}

static int snd_sbmixer_put_double(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
{
      sb_t *sb = snd_kcontrol_chip(kcontrol);
      unsigned long flags;
      int left_reg = kcontrol->private_value & 0xff;
      int right_reg = (kcontrol->private_value >> 8) & 0xff;
      int left_shift = (kcontrol->private_value >> 16) & 0x07;
      int right_shift = (kcontrol->private_value >> 19) & 0x07;
      int mask = (kcontrol->private_value >> 24) & 0xff;
      int change;
      unsigned char left, right, oleft, oright;

      left = (ucontrol->value.integer.value[0] & mask) << left_shift;
      right = (ucontrol->value.integer.value[1] & mask) << right_shift;
      spin_lock_irqsave(&sb->mixer_lock, flags);
      if (left_reg == right_reg) {
            oleft = snd_sbmixer_read(sb, left_reg);
            left = (oleft & ~((mask << left_shift) | (mask << right_shift))) | left | right;
            change = left != oleft;
            if (change)
                  snd_sbmixer_write(sb, left_reg, left);
      } else {
            oleft = snd_sbmixer_read(sb, left_reg);
            oright = snd_sbmixer_read(sb, right_reg);
            left = (oleft & ~(mask << left_shift)) | left;
            right = (oright & ~(mask << right_shift)) | right;
            change = left != oleft || right != oright;
            if (change) {
                  snd_sbmixer_write(sb, left_reg, left);
                  snd_sbmixer_write(sb, right_reg, right);
            }
      }
      spin_unlock_irqrestore(&sb->mixer_lock, flags);
      return change;
}

/*
 * DT-019x / ALS-007 capture/input switch
 */

static int snd_dt019x_input_sw_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
{
      static char *texts[5] = {
            "CD", "Mic", "Line", "Synth", "Master"
      };

      uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
      uinfo->count = 1;
      uinfo->value.enumerated.items = 5;
      if (uinfo->value.enumerated.item > 4)
            uinfo->value.enumerated.item = 4;
      strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
      return 0;
}

static int snd_dt019x_input_sw_get(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
{
      sb_t *sb = snd_kcontrol_chip(kcontrol);
      unsigned long flags;
      unsigned char oval;
      
      spin_lock_irqsave(&sb->mixer_lock, flags);
      oval = snd_sbmixer_read(sb, SB_DT019X_CAPTURE_SW);
      spin_unlock_irqrestore(&sb->mixer_lock, flags);
      switch (oval & 0x07) {
      case SB_DT019X_CAP_CD:
            ucontrol->value.enumerated.item[0] = 0;
            break;
      case SB_DT019X_CAP_MIC:
            ucontrol->value.enumerated.item[0] = 1;
            break;
      case SB_DT019X_CAP_LINE:
            ucontrol->value.enumerated.item[0] = 2;
            break;
      case SB_DT019X_CAP_MAIN:
            ucontrol->value.enumerated.item[0] = 4;
            break;
      /* To record the synth on these cards you must record the main.   */
      /* Thus SB_DT019X_CAP_SYNTH == SB_DT019X_CAP_MAIN and would cause */
      /* duplicate case labels if left uncommented. */
      /* case SB_DT019X_CAP_SYNTH:
       *    ucontrol->value.enumerated.item[0] = 3;
       *    break;
       */
      default:
            ucontrol->value.enumerated.item[0] = 4;
            break;
      }
      return 0;
}

static int snd_dt019x_input_sw_put(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
{
      sb_t *sb = snd_kcontrol_chip(kcontrol);
      unsigned long flags;
      int change;
      unsigned char nval, oval;
      
      if (ucontrol->value.enumerated.item[0] > 4)
            return -EINVAL;
      switch (ucontrol->value.enumerated.item[0]) {
      case 0:
            nval = SB_DT019X_CAP_CD;
            break;
      case 1:
            nval = SB_DT019X_CAP_MIC;
            break;
      case 2:
            nval = SB_DT019X_CAP_LINE;
            break;
      case 3:
            nval = SB_DT019X_CAP_SYNTH;
            break;
      case 4:
            nval = SB_DT019X_CAP_MAIN;
            break;
      default:
            nval = SB_DT019X_CAP_MAIN;
      }
      spin_lock_irqsave(&sb->mixer_lock, flags);
      oval = snd_sbmixer_read(sb, SB_DT019X_CAPTURE_SW);
      change = nval != oval;
      if (change)
            snd_sbmixer_write(sb, SB_DT019X_CAPTURE_SW, nval);
      spin_unlock_irqrestore(&sb->mixer_lock, flags);
      return change;
}

/*
 * SBPRO input multiplexer
 */

static int snd_sb8mixer_info_mux(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
{
      static char *texts[3] = {
            "Mic", "CD", "Line"
      };

      uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
      uinfo->count = 1;
      uinfo->value.enumerated.items = 3;
      if (uinfo->value.enumerated.item > 2)
            uinfo->value.enumerated.item = 2;
      strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
      return 0;
}


static int snd_sb8mixer_get_mux(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
{
      sb_t *sb = snd_kcontrol_chip(kcontrol);
      unsigned long flags;
      unsigned char oval;
      
      spin_lock_irqsave(&sb->mixer_lock, flags);
      oval = snd_sbmixer_read(sb, SB_DSP_CAPTURE_SOURCE);
      spin_unlock_irqrestore(&sb->mixer_lock, flags);
      switch ((oval >> 0x01) & 0x03) {
      case SB_DSP_MIXS_CD:
            ucontrol->value.enumerated.item[0] = 1;
            break;
      case SB_DSP_MIXS_LINE:
            ucontrol->value.enumerated.item[0] = 2;
            break;
      default:
            ucontrol->value.enumerated.item[0] = 0;
            break;
      }
      return 0;
}

static int snd_sb8mixer_put_mux(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
{
      sb_t *sb = snd_kcontrol_chip(kcontrol);
      unsigned long flags;
      int change;
      unsigned char nval, oval;
      
      if (ucontrol->value.enumerated.item[0] > 2)
            return -EINVAL;
      switch (ucontrol->value.enumerated.item[0]) {
      case 1:
            nval = SB_DSP_MIXS_CD;
            break;
      case 2:
            nval = SB_DSP_MIXS_LINE;
            break;
      default:
            nval = SB_DSP_MIXS_MIC;
      }
      nval <<= 1;
      spin_lock_irqsave(&sb->mixer_lock, flags);
      oval = snd_sbmixer_read(sb, SB_DSP_CAPTURE_SOURCE);
      nval |= oval & ~0x06;
      change = nval != oval;
      if (change)
            snd_sbmixer_write(sb, SB_DSP_CAPTURE_SOURCE, nval);
      spin_unlock_irqrestore(&sb->mixer_lock, flags);
      return change;
}

/*
 * SB16 input switch
 */

static int snd_sb16mixer_info_input_sw(snd_kcontrol_t * kcontrol, snd_ctl_elem_info_t * uinfo)
{
      uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
      uinfo->count = 4;
      uinfo->value.integer.min = 0;
      uinfo->value.integer.max = 1;
      return 0;
}

static int snd_sb16mixer_get_input_sw(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
{
      sb_t *sb = snd_kcontrol_chip(kcontrol);
      unsigned long flags;
      int reg1 = kcontrol->private_value & 0xff;
      int reg2 = (kcontrol->private_value >> 8) & 0xff;
      int left_shift = (kcontrol->private_value >> 16) & 0x0f;
      int right_shift = (kcontrol->private_value >> 24) & 0x0f;
      unsigned char val1, val2;

      spin_lock_irqsave(&sb->mixer_lock, flags);
      val1 = snd_sbmixer_read(sb, reg1);
      val2 = snd_sbmixer_read(sb, reg2);
      spin_unlock_irqrestore(&sb->mixer_lock, flags);
      ucontrol->value.integer.value[0] = (val1 >> left_shift) & 0x01;
      ucontrol->value.integer.value[1] = (val2 >> left_shift) & 0x01;
      ucontrol->value.integer.value[2] = (val1 >> right_shift) & 0x01;
      ucontrol->value.integer.value[3] = (val2 >> right_shift) & 0x01;
      return 0;
}                                                                                                                   

static int snd_sb16mixer_put_input_sw(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
{
      sb_t *sb = snd_kcontrol_chip(kcontrol);
      unsigned long flags;
      int reg1 = kcontrol->private_value & 0xff;
      int reg2 = (kcontrol->private_value >> 8) & 0xff;
      int left_shift = (kcontrol->private_value >> 16) & 0x0f;
      int right_shift = (kcontrol->private_value >> 24) & 0x0f;
      int change;
      unsigned char val1, val2, oval1, oval2;

      spin_lock_irqsave(&sb->mixer_lock, flags);
      oval1 = snd_sbmixer_read(sb, reg1);
      oval2 = snd_sbmixer_read(sb, reg2);
      val1 = oval1 & ~((1 << left_shift) | (1 << right_shift));
      val2 = oval2 & ~((1 << left_shift) | (1 << right_shift));
      val1 |= (ucontrol->value.integer.value[0] & 1) << left_shift;
      val2 |= (ucontrol->value.integer.value[1] & 1) << left_shift;
      val1 |= (ucontrol->value.integer.value[2] & 1) << right_shift;
      val2 |= (ucontrol->value.integer.value[3] & 1) << right_shift;
      change = val1 != oval1 || val2 != oval2;
      if (change) {
            snd_sbmixer_write(sb, reg1, val1);
            snd_sbmixer_write(sb, reg2, val2);
      }
      spin_unlock_irqrestore(&sb->mixer_lock, flags);
      return change;
}


/*
 */
/*
 */
int snd_sbmixer_add_ctl(sb_t *chip, const char *name, int index, int type, unsigned long value)
{
      static snd_kcontrol_new_t newctls[] = {
            [SB_MIX_SINGLE] = {
                  .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
                  .info = snd_sbmixer_info_single,
                  .get = snd_sbmixer_get_single,
                  .put = snd_sbmixer_put_single,
            },
            [SB_MIX_DOUBLE] = {
                  .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
                  .info = snd_sbmixer_info_double,
                  .get = snd_sbmixer_get_double,
                  .put = snd_sbmixer_put_double,
            },
            [SB_MIX_INPUT_SW] = {
                  .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
                  .info = snd_sb16mixer_info_input_sw,
                  .get = snd_sb16mixer_get_input_sw,
                  .put = snd_sb16mixer_put_input_sw,
            },
            [SB_MIX_CAPTURE_PRO] = {
                  .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
                  .info = snd_sb8mixer_info_mux,
                  .get = snd_sb8mixer_get_mux,
                  .put = snd_sb8mixer_put_mux,
            },
            [SB_MIX_CAPTURE_DT019X] = {
                  .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
                  .info = snd_dt019x_input_sw_info,
                  .get = snd_dt019x_input_sw_get,
                  .put = snd_dt019x_input_sw_put,
            },
      };
      snd_kcontrol_t *ctl;
      int err;

      ctl = snd_ctl_new1(&newctls[type], chip);
      if (! ctl)
            return -ENOMEM;
      strlcpy(ctl->id.name, name, sizeof(ctl->id.name));
      ctl->id.index = index;
      ctl->private_value = value;
      if ((err = snd_ctl_add(chip->card, ctl)) < 0) {
            snd_ctl_free_one(ctl);
            return err;
      }
      return 0;
}

/*
 * SB 2.0 specific mixer elements
 */

static struct sbmix_elem snd_sb20_ctl_master_play_vol =
      SB_SINGLE("Master Playback Volume", SB_DSP20_MASTER_DEV, 1, 7);
static struct sbmix_elem snd_sb20_ctl_pcm_play_vol =
      SB_SINGLE("PCM Playback Volume", SB_DSP20_PCM_DEV, 1, 3);
static struct sbmix_elem snd_sb20_ctl_synth_play_vol =
      SB_SINGLE("Synth Playback Volume", SB_DSP20_FM_DEV, 1, 7);
static struct sbmix_elem snd_sb20_ctl_cd_play_vol =
      SB_SINGLE("CD Playback Volume", SB_DSP20_CD_DEV, 1, 7);

static struct sbmix_elem *snd_sb20_controls[] = {
      &snd_sb20_ctl_master_play_vol,
      &snd_sb20_ctl_pcm_play_vol,
      &snd_sb20_ctl_synth_play_vol,
      &snd_sb20_ctl_cd_play_vol
};

static unsigned char snd_sb20_init_values[][2] = {
      { SB_DSP20_MASTER_DEV, 0 },
      { SB_DSP20_FM_DEV, 0 },
};

/*
 * SB Pro specific mixer elements
 */
static struct sbmix_elem snd_sbpro_ctl_master_play_vol =
      SB_DOUBLE("Master Playback Volume", SB_DSP_MASTER_DEV, SB_DSP_MASTER_DEV, 5, 1, 7);
static struct sbmix_elem snd_sbpro_ctl_pcm_play_vol =
      SB_DOUBLE("PCM Playback Volume", SB_DSP_PCM_DEV, SB_DSP_PCM_DEV, 5, 1, 7);
static struct sbmix_elem snd_sbpro_ctl_pcm_play_filter =
      SB_SINGLE("PCM Playback Filter", SB_DSP_PLAYBACK_FILT, 5, 1);
static struct sbmix_elem snd_sbpro_ctl_synth_play_vol =
      SB_DOUBLE("Synth Playback Volume", SB_DSP_FM_DEV, SB_DSP_FM_DEV, 5, 1, 7);
static struct sbmix_elem snd_sbpro_ctl_cd_play_vol =
      SB_DOUBLE("CD Playback Volume", SB_DSP_CD_DEV, SB_DSP_CD_DEV, 5, 1, 7);
static struct sbmix_elem snd_sbpro_ctl_line_play_vol =
      SB_DOUBLE("Line Playback Volume", SB_DSP_LINE_DEV, SB_DSP_LINE_DEV, 5, 1, 7);
static struct sbmix_elem snd_sbpro_ctl_mic_play_vol =
      SB_SINGLE("Mic Playback Volume", SB_DSP_MIC_DEV, 1, 3);
static struct sbmix_elem snd_sbpro_ctl_capture_source =
      {
            .name = "Capture Source",
            .type = SB_MIX_CAPTURE_PRO
      };
static struct sbmix_elem snd_sbpro_ctl_capture_filter =
      SB_SINGLE("Capture Filter", SB_DSP_CAPTURE_FILT, 5, 1);
static struct sbmix_elem snd_sbpro_ctl_capture_low_filter =
      SB_SINGLE("Capture Low-Pass Filter", SB_DSP_CAPTURE_FILT, 3, 1);

static struct sbmix_elem *snd_sbpro_controls[] = {
      &snd_sbpro_ctl_master_play_vol,
      &snd_sbpro_ctl_pcm_play_vol,
      &snd_sbpro_ctl_pcm_play_filter,
      &snd_sbpro_ctl_synth_play_vol,
      &snd_sbpro_ctl_cd_play_vol,
      &snd_sbpro_ctl_line_play_vol,
      &snd_sbpro_ctl_mic_play_vol,
      &snd_sbpro_ctl_capture_source,
      &snd_sbpro_ctl_capture_filter,
      &snd_sbpro_ctl_capture_low_filter
};

static unsigned char snd_sbpro_init_values[][2] = {
      { SB_DSP_MASTER_DEV, 0 },
      { SB_DSP_PCM_DEV, 0 },
      { SB_DSP_FM_DEV, 0 },
};

/*
 * SB16 specific mixer elements
 */
static struct sbmix_elem snd_sb16_ctl_master_play_vol =
      SB_DOUBLE("Master Playback Volume", SB_DSP4_MASTER_DEV, (SB_DSP4_MASTER_DEV + 1), 3, 3, 31);
static struct sbmix_elem snd_sb16_ctl_3d_enhance_switch =
      SB_SINGLE("3D Enhancement Switch", SB_DSP4_3DSE, 0, 1);
static struct sbmix_elem snd_sb16_ctl_tone_bass =
      SB_DOUBLE("Tone Control - Bass", SB_DSP4_BASS_DEV, (SB_DSP4_BASS_DEV + 1), 4, 4, 15);
static struct sbmix_elem snd_sb16_ctl_tone_treble =
      SB_DOUBLE("Tone Control - Treble", SB_DSP4_TREBLE_DEV, (SB_DSP4_TREBLE_DEV + 1), 4, 4, 15);
static struct sbmix_elem snd_sb16_ctl_pcm_play_vol =
      SB_DOUBLE("PCM Playback Volume", SB_DSP4_PCM_DEV, (SB_DSP4_PCM_DEV + 1), 3, 3, 31);
static struct sbmix_elem snd_sb16_ctl_synth_capture_route =
      SB16_INPUT_SW("Synth Capture Route", SB_DSP4_INPUT_LEFT, SB_DSP4_INPUT_RIGHT, 6, 5);
static struct sbmix_elem snd_sb16_ctl_synth_play_vol =
      SB_DOUBLE("Synth Playback Volume", SB_DSP4_SYNTH_DEV, (SB_DSP4_SYNTH_DEV + 1), 3, 3, 31);
static struct sbmix_elem snd_sb16_ctl_cd_capture_route =
      SB16_INPUT_SW("CD Capture Route", SB_DSP4_INPUT_LEFT, SB_DSP4_INPUT_RIGHT, 2, 1);
static struct sbmix_elem snd_sb16_ctl_cd_play_switch =
      SB_DOUBLE("CD Playback Switch", SB_DSP4_OUTPUT_SW, SB_DSP4_OUTPUT_SW, 2, 1, 1);
static struct sbmix_elem snd_sb16_ctl_cd_play_vol =
      SB_DOUBLE("CD Playback Volume", SB_DSP4_CD_DEV, (SB_DSP4_CD_DEV + 1), 3, 3, 31);
static struct sbmix_elem snd_sb16_ctl_line_capture_route =
      SB16_INPUT_SW("Line Capture Route", SB_DSP4_INPUT_LEFT, SB_DSP4_INPUT_RIGHT, 4, 3);
static struct sbmix_elem snd_sb16_ctl_line_play_switch =
      SB_DOUBLE("Line Playback Switch", SB_DSP4_OUTPUT_SW, SB_DSP4_OUTPUT_SW, 4, 3, 1);
static struct sbmix_elem snd_sb16_ctl_line_play_vol =
      SB_DOUBLE("Line Playback Volume", SB_DSP4_LINE_DEV, (SB_DSP4_LINE_DEV + 1), 3, 3, 31);
static struct sbmix_elem snd_sb16_ctl_mic_capture_route =
      SB16_INPUT_SW("Mic Capture Route", SB_DSP4_INPUT_LEFT, SB_DSP4_INPUT_RIGHT, 0, 0);
static struct sbmix_elem snd_sb16_ctl_mic_play_switch =
      SB_SINGLE("Mic Playback Switch", SB_DSP4_OUTPUT_SW, 0, 1);
static struct sbmix_elem snd_sb16_ctl_mic_play_vol =
      SB_SINGLE("Mic Playback Volume", SB_DSP4_MIC_DEV, 3, 31);
static struct sbmix_elem snd_sb16_ctl_pc_speaker_vol =
      SB_SINGLE("PC Speaker Volume", SB_DSP4_SPEAKER_DEV, 6, 3);
static struct sbmix_elem snd_sb16_ctl_capture_vol =
      SB_DOUBLE("Capture Volume", SB_DSP4_IGAIN_DEV, (SB_DSP4_IGAIN_DEV + 1), 6, 6, 3);
static struct sbmix_elem snd_sb16_ctl_play_vol =
      SB_DOUBLE("Playback Volume", SB_DSP4_OGAIN_DEV, (SB_DSP4_OGAIN_DEV + 1), 6, 6, 3);
static struct sbmix_elem snd_sb16_ctl_auto_mic_gain =
      SB_SINGLE("Mic Auto Gain", SB_DSP4_MIC_AGC, 0, 1);

static struct sbmix_elem *snd_sb16_controls[] = {
      &snd_sb16_ctl_master_play_vol,
      &snd_sb16_ctl_3d_enhance_switch,
      &snd_sb16_ctl_tone_bass,
      &snd_sb16_ctl_tone_treble,
      &snd_sb16_ctl_pcm_play_vol,
      &snd_sb16_ctl_synth_capture_route,
      &snd_sb16_ctl_synth_play_vol,
      &snd_sb16_ctl_cd_capture_route,
      &snd_sb16_ctl_cd_play_switch,
      &snd_sb16_ctl_cd_play_vol,
      &snd_sb16_ctl_line_capture_route,
      &snd_sb16_ctl_line_play_switch,
      &snd_sb16_ctl_line_play_vol,
      &snd_sb16_ctl_mic_capture_route,
      &snd_sb16_ctl_mic_play_switch,
      &snd_sb16_ctl_mic_play_vol,
      &snd_sb16_ctl_pc_speaker_vol,
      &snd_sb16_ctl_capture_vol,
      &snd_sb16_ctl_play_vol,
      &snd_sb16_ctl_auto_mic_gain
};

static unsigned char snd_sb16_init_values[][2] = {
      { SB_DSP4_MASTER_DEV + 0, 0 },
      { SB_DSP4_MASTER_DEV + 1, 0 },
      { SB_DSP4_PCM_DEV + 0, 0 },
      { SB_DSP4_PCM_DEV + 1, 0 },
      { SB_DSP4_SYNTH_DEV + 0, 0 },
      { SB_DSP4_SYNTH_DEV + 1, 0 },
      { SB_DSP4_INPUT_LEFT, 0 },
      { SB_DSP4_INPUT_RIGHT, 0 },
      { SB_DSP4_OUTPUT_SW, 0 },
      { SB_DSP4_SPEAKER_DEV, 0 },
};

/*
 * DT019x specific mixer elements
 */
static struct sbmix_elem snd_dt019x_ctl_master_play_vol =
      SB_DOUBLE("Master Playback Volume", SB_DT019X_MASTER_DEV, SB_DT019X_MASTER_DEV, 4,0, 15);
static struct sbmix_elem snd_dt019x_ctl_pcm_play_vol =
      SB_DOUBLE("PCM Playback Volume", SB_DT019X_PCM_DEV, SB_DT019X_PCM_DEV, 4,0, 15);
static struct sbmix_elem snd_dt019x_ctl_synth_play_vol =
      SB_DOUBLE("Synth Playback Volume", SB_DT019X_SYNTH_DEV, SB_DT019X_SYNTH_DEV, 4,0, 15);
static struct sbmix_elem snd_dt019x_ctl_cd_play_vol =
      SB_DOUBLE("CD Playback Volume", SB_DT019X_CD_DEV, SB_DT019X_CD_DEV, 4,0, 15);
static struct sbmix_elem snd_dt019x_ctl_mic_play_vol =
      SB_SINGLE("Mic Playback Volume", SB_DT019X_MIC_DEV, 4, 7);
static struct sbmix_elem snd_dt019x_ctl_pc_speaker_vol =
      SB_SINGLE("PC Speaker Volume", SB_DT019X_SPKR_DEV, 0,  7);
static struct sbmix_elem snd_dt019x_ctl_line_play_vol =
      SB_DOUBLE("Line Playback Volume", SB_DT019X_LINE_DEV, SB_DT019X_LINE_DEV, 4,0, 15);
static struct sbmix_elem snd_dt019x_ctl_pcm_play_switch =
      SB_DOUBLE("PCM Playback Switch", SB_DT019X_OUTPUT_SW2, SB_DT019X_OUTPUT_SW2, 2,1, 1);
static struct sbmix_elem snd_dt019x_ctl_synth_play_switch =
      SB_DOUBLE("Synth Playback Switch", SB_DT019X_OUTPUT_SW2, SB_DT019X_OUTPUT_SW2, 4,3, 1);
static struct sbmix_elem snd_dt019x_ctl_capture_source =
      {
            .name = "Capture Source",
            .type = SB_MIX_CAPTURE_DT019X
      };

static struct sbmix_elem *snd_dt019x_controls[] = {
      &snd_dt019x_ctl_master_play_vol,
      &snd_dt019x_ctl_pcm_play_vol,
      &snd_dt019x_ctl_synth_play_vol,
      &snd_dt019x_ctl_cd_play_vol,
      &snd_dt019x_ctl_mic_play_vol,
      &snd_dt019x_ctl_pc_speaker_vol,
      &snd_dt019x_ctl_line_play_vol,
      &snd_sb16_ctl_mic_play_switch,
      &snd_sb16_ctl_cd_play_switch,
      &snd_sb16_ctl_line_play_switch,
      &snd_dt019x_ctl_pcm_play_switch,
      &snd_dt019x_ctl_synth_play_switch,
      &snd_dt019x_ctl_capture_source
};

static unsigned char snd_dt019x_init_values[][2] = {
        { SB_DT019X_MASTER_DEV, 0 },
        { SB_DT019X_PCM_DEV, 0 },
        { SB_DT019X_SYNTH_DEV, 0 },
        { SB_DT019X_CD_DEV, 0 },
        { SB_DT019X_MIC_DEV, 0 },   /* Includes PC-speaker in high nibble */
        { SB_DT019X_LINE_DEV, 0 },
        { SB_DSP4_OUTPUT_SW, 0 },
        { SB_DT019X_OUTPUT_SW2, 0 },
        { SB_DT019X_CAPTURE_SW, 0x06 },
};

/*
 * ALS4000 specific mixer elements
 */
/* FIXME: SB_ALS4000_MONO_IO_CTRL needs output select ctrl ! */
static struct sbmix_elem snd_als4000_ctl_mono_output_switch =
      SB_SINGLE("Mono Output Switch", SB_ALS4000_MONO_IO_CTRL, 5, 1);
/* FIXME: mono input switch also available on DT019X ? */
static struct sbmix_elem snd_als4000_ctl_mono_input_switch =
      SB_SINGLE("Mono Input Switch", SB_DT019X_OUTPUT_SW2, 0, 1);
static struct sbmix_elem snd_als4000_ctl_mic_20db_boost =
      SB_SINGLE("Mic Boost (+20dB)", SB_ALS4000_MIC_IN_GAIN, 0, 0x03);
static struct sbmix_elem snd_als4000_ctl_mixer_out_to_in =
      SB_SINGLE("Mixer Out To In", SB_ALS4000_MIC_IN_GAIN, 7, 0x01);
/* FIXME: 3D needs much more sophisticated controls, many more features ! */
static struct sbmix_elem snd_als4000_ctl_3d_output_switch =
      SB_SINGLE("3D Output Switch", SB_ALS4000_3D_SND_FX, 6, 0x01);
static struct sbmix_elem snd_als4000_ctl_3d_output_ratio =
      SB_SINGLE("3D Output Ratio", SB_ALS4000_3D_SND_FX, 0, 0x07);
static struct sbmix_elem snd_als4000_ctl_3d_poweroff_switch =
      SB_SINGLE("3D PowerOff Switch", SB_ALS4000_3D_TIME_DELAY, 4, 0x01);
static struct sbmix_elem snd_als4000_ctl_3d_delay =
      SB_SINGLE("3D Delay", SB_ALS4000_3D_TIME_DELAY, 0, 0x0f);
#if NOT_AVAILABLE
static struct sbmix_elem snd_als4000_ctl_fmdac =
      SB_SINGLE("FMDAC Switch (Option ?)", SB_ALS4000_FMDAC, 0, 0x01);
static struct sbmix_elem snd_als4000_ctl_qsound =
      SB_SINGLE("QSound Mode", SB_ALS4000_QSOUND, 1, 0x1f);
#endif

static struct sbmix_elem *snd_als4000_controls[] = {
      &snd_sb16_ctl_master_play_vol,
      &snd_dt019x_ctl_pcm_play_switch,
      &snd_sb16_ctl_pcm_play_vol,
      &snd_sb16_ctl_synth_capture_route,
      &snd_dt019x_ctl_synth_play_switch,
      &snd_sb16_ctl_synth_play_vol,
      &snd_sb16_ctl_cd_capture_route,
      &snd_sb16_ctl_cd_play_switch,
      &snd_sb16_ctl_cd_play_vol,
      &snd_sb16_ctl_line_capture_route,
      &snd_sb16_ctl_line_play_switch,
      &snd_sb16_ctl_line_play_vol,
      &snd_sb16_ctl_mic_capture_route,
      &snd_als4000_ctl_mic_20db_boost,
      &snd_sb16_ctl_auto_mic_gain,
      &snd_sb16_ctl_mic_play_switch,
      &snd_sb16_ctl_mic_play_vol,
      &snd_sb16_ctl_pc_speaker_vol,
      &snd_sb16_ctl_capture_vol,
      &snd_sb16_ctl_play_vol,
      &snd_als4000_ctl_mono_output_switch,
      &snd_als4000_ctl_mono_input_switch,
      &snd_als4000_ctl_mixer_out_to_in,
      &snd_als4000_ctl_3d_output_switch,
      &snd_als4000_ctl_3d_output_ratio,
      &snd_als4000_ctl_3d_delay,
      &snd_als4000_ctl_3d_poweroff_switch,
#if NOT_AVAILABLE
      &snd_als4000_ctl_fmdac,
      &snd_als4000_ctl_qsound,
#endif
};

static unsigned char snd_als4000_init_values[][2] = {
      { SB_DSP4_MASTER_DEV + 0, 0 },
      { SB_DSP4_MASTER_DEV + 1, 0 },
      { SB_DSP4_PCM_DEV + 0, 0 },
      { SB_DSP4_PCM_DEV + 1, 0 },
      { SB_DSP4_SYNTH_DEV + 0, 0 },
      { SB_DSP4_SYNTH_DEV + 1, 0 },
      { SB_DSP4_SPEAKER_DEV, 0 },
      { SB_DSP4_OUTPUT_SW, 0 },
      { SB_DSP4_INPUT_LEFT, 0 },
      { SB_DSP4_INPUT_RIGHT, 0 },
      { SB_DT019X_OUTPUT_SW2, 0 },
      { SB_ALS4000_MIC_IN_GAIN, 0 },
};


/*
 */
static int snd_sbmixer_init(sb_t *chip,
                      struct sbmix_elem **controls,
                      int controls_count,
                      unsigned char map[][2],
                      int map_count,
                      char *name)
{
      unsigned long flags;
      snd_card_t *card = chip->card;
      int idx, err;

      /* mixer reset */
      spin_lock_irqsave(&chip->mixer_lock, flags);
      snd_sbmixer_write(chip, 0x00, 0x00);
      spin_unlock_irqrestore(&chip->mixer_lock, flags);

      /* mute and zero volume channels */
      for (idx = 0; idx < map_count; idx++) {
            spin_lock_irqsave(&chip->mixer_lock, flags);
            snd_sbmixer_write(chip, map[idx][0], map[idx][1]);
            spin_unlock_irqrestore(&chip->mixer_lock, flags);
      }

      for (idx = 0; idx < controls_count; idx++) {
            if ((err = snd_sbmixer_add_ctl_elem(chip, controls[idx])) < 0)
                  return err;
      }
      snd_component_add(card, name);
      strcpy(card->mixername, name);
      return 0;
}

int snd_sbmixer_new(sb_t *chip)
{
      snd_card_t * card;
      int err;

      snd_assert(chip != NULL && chip->card != NULL, return -EINVAL);

      card = chip->card;

      switch (chip->hardware) {
      case SB_HW_10:
            return 0; /* no mixer chip on SB1.x */
      case SB_HW_20:
      case SB_HW_201:
            if ((err = snd_sbmixer_init(chip,
                                  snd_sb20_controls,
                                  ARRAY_SIZE(snd_sb20_controls),
                                  snd_sb20_init_values,
                                  ARRAY_SIZE(snd_sb20_init_values),
                                  "CTL1335")) < 0)
                  return err;
            break;
      case SB_HW_PRO:
            if ((err = snd_sbmixer_init(chip,
                                  snd_sbpro_controls,
                                  ARRAY_SIZE(snd_sbpro_controls),
                                  snd_sbpro_init_values,
                                  ARRAY_SIZE(snd_sbpro_init_values),
                                  "CTL1345")) < 0)
                  return err;
            break;
      case SB_HW_16:
      case SB_HW_ALS100:
            if ((err = snd_sbmixer_init(chip,
                                  snd_sb16_controls,
                                  ARRAY_SIZE(snd_sb16_controls),
                                  snd_sb16_init_values,
                                  ARRAY_SIZE(snd_sb16_init_values),
                                  "CTL1745")) < 0)
                  return err;
            break;
      case SB_HW_ALS4000:
            if ((err = snd_sbmixer_init(chip,
                                  snd_als4000_controls,
                                  ARRAY_SIZE(snd_als4000_controls),
                                  snd_als4000_init_values,
                                  ARRAY_SIZE(snd_als4000_init_values),
                                  "ALS4000")) < 0)
                  return err;
            break;
      case SB_HW_DT019X:
            if ((err = snd_sbmixer_init(chip,
                                  snd_dt019x_controls,
                                  ARRAY_SIZE(snd_dt019x_controls),
                                  snd_dt019x_init_values,
                                  ARRAY_SIZE(snd_dt019x_init_values),
                                  "DT019X")) < 0)
            break;
      default:
            strcpy(card->mixername, "???");
      }
      return 0;
}

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