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root/sound/isa/sb/sb_mixer.c

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DEFINITIONS

This source file includes following definitions.
  1. snd_sbmixer_write
  2. snd_sbmixer_read
  3. snd_sbmixer_info_single
  4. snd_sbmixer_get_single
  5. snd_sbmixer_put_single
  6. snd_sbmixer_info_double
  7. snd_sbmixer_get_double
  8. snd_sbmixer_put_double
  9. snd_dt019x_input_sw_info
  10. snd_dt019x_input_sw_get
  11. snd_dt019x_input_sw_put
  12. snd_sb8mixer_info_mux
  13. snd_sb8mixer_get_mux
  14. snd_sb8mixer_put_mux
  15. snd_sb16mixer_info_input_sw
  16. snd_sb16mixer_get_input_sw
  17. snd_sb16mixer_put_input_sw
  18. snd_sbmixer_add_ctl
  19. snd_sbmixer_init
  20. snd_sbmixer_new
  21. save_mixer
  22. restore_mixer
  23. snd_sbmixer_suspend
  24. snd_sbmixer_resume

/*
 *  Copyright (c) by Jaroslav Kysela <perex@perex.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 <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(struct snd_sb *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(KERN_DEBUG "mixer_write 0x%x 0x%x\n", reg, data);
#endif
}

unsigned char snd_sbmixer_read(struct snd_sb *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(KERN_DEBUG "mixer_read 0x%x 0x%x\n", reg, result);
#endif
        return result;
}

/*
 * Single channel mixer element
 */

static int snd_sbmixer_info_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *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(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
        struct snd_sb *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(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
        struct snd_sb *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(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *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(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
        struct snd_sb *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(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
        struct snd_sb *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(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *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(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
        struct snd_sb *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(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
        struct snd_sb *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(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *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(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
        struct snd_sb *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(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
        struct snd_sb *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(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *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(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
        struct snd_sb *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(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
        struct snd_sb *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(struct snd_sb *chip, const char *name, int index, int type, unsigned long value)
{
        static struct snd_kcontrol_new 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,
                },
        };
        struct snd_kcontrol *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)
                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_master_mono_playback_switch =
        SB_SINGLE("Master Mono Playback Switch", SB_ALS4000_MONO_IO_CTRL, 5, 1);
static struct sbmix_elem snd_als4000_ctl_master_mono_capture_route =
        SB_SINGLE("Master Mono Capture Route", SB_ALS4000_MONO_IO_CTRL, 6, 0x03);
/* FIXME: mono playback switch also available on DT019X? */
static struct sbmix_elem snd_als4000_ctl_mono_playback_switch =
        SB_SINGLE("Mono Playback 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_loopback =
        SB_SINGLE("Analog Loopback", SB_ALS4000_MIC_IN_GAIN, 7, 0x01);
/* FIXME: functionality of 3D controls might be swapped, I didn't find
 * a description of how to identify what is supposed to be what */
static struct sbmix_elem snd_als4000_3d_control_switch =
        SB_SINGLE("3D Control - Switch", SB_ALS4000_3D_SND_FX, 6, 0x01);
static struct sbmix_elem snd_als4000_3d_control_ratio =
        SB_SINGLE("3D Control - Level", SB_ALS4000_3D_SND_FX, 0, 0x07);
static struct sbmix_elem snd_als4000_3d_control_freq =
        /* FIXME: maybe there's actually some standard 3D ctrl name for it?? */
        SB_SINGLE("3D Control - Freq", SB_ALS4000_3D_SND_FX, 4, 0x03);
static struct sbmix_elem snd_als4000_3d_control_delay =
        /* FIXME: ALS4000a.pdf mentions BBD (Bucket Brigade Device) time delay,
         * but what ALSA 3D attribute is that actually? "Center", "Depth",
         * "Wide" or "Space" or even "Level"? Assuming "Wide" for now... */
        SB_SINGLE("3D Control - Wide", SB_ALS4000_3D_TIME_DELAY, 0, 0x0f);
static struct sbmix_elem snd_als4000_3d_control_poweroff_switch =
        SB_SINGLE("3D PowerOff Switch", SB_ALS4000_3D_TIME_DELAY, 4, 0x01);
#ifdef 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_master_mono_playback_switch,
        &snd_als4000_ctl_master_mono_capture_route,
        &snd_als4000_ctl_mono_playback_switch,
        &snd_als4000_ctl_mixer_loopback,
        &snd_als4000_3d_control_switch,
        &snd_als4000_3d_control_ratio,
        &snd_als4000_3d_control_freq,
        &snd_als4000_3d_control_delay,
        &snd_als4000_3d_control_poweroff_switch,
#ifdef 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(struct snd_sb *chip,
                            struct sbmix_elem **controls,
                            int controls_count,
                            unsigned char map[][2],
                            int map_count,
                            char *name)
{
        unsigned long flags;
        struct snd_card *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(struct snd_sb *chip)
{
        struct snd_card *card;
        int err;

        if (snd_BUG_ON(!chip || !chip->card))
                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:
        case SB_HW_CS5530:
                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;
}

#ifdef CONFIG_PM
static unsigned char sb20_saved_regs[] = {
        SB_DSP20_MASTER_DEV,
        SB_DSP20_PCM_DEV,
        SB_DSP20_FM_DEV,
        SB_DSP20_CD_DEV,
};

static unsigned char sbpro_saved_regs[] = {
        SB_DSP_MASTER_DEV,
        SB_DSP_PCM_DEV,
        SB_DSP_PLAYBACK_FILT,
        SB_DSP_FM_DEV,
        SB_DSP_CD_DEV,
        SB_DSP_LINE_DEV,
        SB_DSP_MIC_DEV,
        SB_DSP_CAPTURE_SOURCE,
        SB_DSP_CAPTURE_FILT,
};

static unsigned char sb16_saved_regs[] = {
        SB_DSP4_MASTER_DEV, SB_DSP4_MASTER_DEV + 1,
        SB_DSP4_3DSE,
        SB_DSP4_BASS_DEV, SB_DSP4_BASS_DEV + 1,
        SB_DSP4_TREBLE_DEV, SB_DSP4_TREBLE_DEV + 1,
        SB_DSP4_PCM_DEV, SB_DSP4_PCM_DEV + 1,
        SB_DSP4_INPUT_LEFT, SB_DSP4_INPUT_RIGHT,
        SB_DSP4_SYNTH_DEV, SB_DSP4_SYNTH_DEV + 1,
        SB_DSP4_OUTPUT_SW,
        SB_DSP4_CD_DEV, SB_DSP4_CD_DEV + 1,
        SB_DSP4_LINE_DEV, SB_DSP4_LINE_DEV + 1,
        SB_DSP4_MIC_DEV,
        SB_DSP4_SPEAKER_DEV,
        SB_DSP4_IGAIN_DEV, SB_DSP4_IGAIN_DEV + 1,
        SB_DSP4_OGAIN_DEV, SB_DSP4_OGAIN_DEV + 1,
        SB_DSP4_MIC_AGC
};

static unsigned char dt019x_saved_regs[] = {
        SB_DT019X_MASTER_DEV,
        SB_DT019X_PCM_DEV,
        SB_DT019X_SYNTH_DEV,
        SB_DT019X_CD_DEV,
        SB_DT019X_MIC_DEV,
        SB_DT019X_SPKR_DEV,
        SB_DT019X_LINE_DEV,
        SB_DSP4_OUTPUT_SW,
        SB_DT019X_OUTPUT_SW2,
        SB_DT019X_CAPTURE_SW,
};

static unsigned char als4000_saved_regs[] = {
        SB_DSP4_MASTER_DEV, SB_DSP4_MASTER_DEV + 1,
        SB_DSP4_OUTPUT_SW,
        SB_DSP4_PCM_DEV, SB_DSP4_PCM_DEV + 1,
        SB_DSP4_INPUT_LEFT, SB_DSP4_INPUT_RIGHT,
        SB_DSP4_SYNTH_DEV, SB_DSP4_SYNTH_DEV + 1,
        SB_DSP4_CD_DEV, SB_DSP4_CD_DEV + 1,
        SB_DSP4_MIC_AGC,
        SB_DSP4_MIC_DEV,
        SB_DSP4_SPEAKER_DEV,
        SB_DSP4_IGAIN_DEV, SB_DSP4_IGAIN_DEV + 1,
        SB_DSP4_OGAIN_DEV, SB_DSP4_OGAIN_DEV + 1,
        SB_DT019X_OUTPUT_SW2,
        SB_ALS4000_MONO_IO_CTRL,
        SB_ALS4000_MIC_IN_GAIN,
        SB_ALS4000_3D_SND_FX,
        SB_ALS4000_3D_TIME_DELAY,
};

static void save_mixer(struct snd_sb *chip, unsigned char *regs, int num_regs)
{
        unsigned char *val = chip->saved_regs;
        if (snd_BUG_ON(num_regs > ARRAY_SIZE(chip->saved_regs)))
                return;
        for (; num_regs; num_regs--)
                *val++ = snd_sbmixer_read(chip, *regs++);
}

static void restore_mixer(struct snd_sb *chip, unsigned char *regs, int num_regs)
{
        unsigned char *val = chip->saved_regs;
        if (snd_BUG_ON(num_regs > ARRAY_SIZE(chip->saved_regs)))
                return;
        for (; num_regs; num_regs--)
                snd_sbmixer_write(chip, *regs++, *val++);
}

void snd_sbmixer_suspend(struct snd_sb *chip)
{
        switch (chip->hardware) {
        case SB_HW_20:
        case SB_HW_201:
                save_mixer(chip, sb20_saved_regs, ARRAY_SIZE(sb20_saved_regs));
                break;
        case SB_HW_PRO:
                save_mixer(chip, sbpro_saved_regs, ARRAY_SIZE(sbpro_saved_regs));
                break;
        case SB_HW_16:
        case SB_HW_ALS100:
        case SB_HW_CS5530:
                save_mixer(chip, sb16_saved_regs, ARRAY_SIZE(sb16_saved_regs));
                break;
        case SB_HW_ALS4000:
                save_mixer(chip, als4000_saved_regs, ARRAY_SIZE(als4000_saved_regs));
                break;
        case SB_HW_DT019X:
                save_mixer(chip, dt019x_saved_regs, ARRAY_SIZE(dt019x_saved_regs));
                break;
        default:
                break;
        }
}

void snd_sbmixer_resume(struct snd_sb *chip)
{
        switch (chip->hardware) {
        case SB_HW_20:
        case SB_HW_201:
                restore_mixer(chip, sb20_saved_regs, ARRAY_SIZE(sb20_saved_regs));
                break;
        case SB_HW_PRO:
                restore_mixer(chip, sbpro_saved_regs, ARRAY_SIZE(sbpro_saved_regs));
                break;
        case SB_HW_16:
        case SB_HW_ALS100:
        case SB_HW_CS5530:
                restore_mixer(chip, sb16_saved_regs, ARRAY_SIZE(sb16_saved_regs));
                break;
        case SB_HW_ALS4000:
                restore_mixer(chip, als4000_saved_regs, ARRAY_SIZE(als4000_saved_regs));
                break;
        case SB_HW_DT019X:
                restore_mixer(chip, dt019x_saved_regs, ARRAY_SIZE(dt019x_saved_regs));
                break;
        default:
                break;
        }
}
#endif

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