msnd_pinnacle_mixer.c

/***************************************************************************
                          msnd_pinnacle_mixer.c  -  description
                             -------------------
    begin                : Fre Jun 7 2002
    copyright            : (C) 2002 by karsten wiese
    email                : annabellesgarden@yahoo.de
 ***************************************************************************/

/***************************************************************************
 *                                                                         *
 *   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.                                   *
 *                                                                         *
 ***************************************************************************/
#define __NO_VERSION__
#include <sound/driver.h>
#include <linux/init.h>
#include <asm/io.h>
#include <sound/core.h>
#include <sound/control.h>
#include "msnd.h"
#include "msnd_pinnacle.h"


#define MSND_MIXER_VOLUME     0
#define MSND_MIXER_PCM        1
#define MSND_MIXER_AUX        2     /* Input source 1  (aux1) */
#define MSND_MIXER_IMIX       3     /*  Recording monitor  */
#define MSND_MIXER_SYNTH      4
#define MSND_MIXER_SPEAKER    5
#define MSND_MIXER_LINE       6
#define MSND_MIXER_MIC        7
#define MSND_MIXER_RECLEV     11    /* Recording level */
#define MSND_MIXER_IGAIN      12    /* Input gain */
#define MSND_MIXER_OGAIN      13    /* Output gain */
#define MSND_MIXER_DIGITAL    17    /* Digital (input) 1 */

/*    Device mask bits  */

#define MSND_MASK_VOLUME      (1 << MSND_MIXER_VOLUME)
#define MSND_MASK_SYNTH       (1 << MSND_MIXER_SYNTH)
#define MSND_MASK_PCM         (1 << MSND_MIXER_PCM)
#define MSND_MASK_SPEAKER     (1 << MSND_MIXER_SPEAKER)
#define MSND_MASK_LINE        (1 << MSND_MIXER_LINE)
#define MSND_MASK_MIC         (1 << MSND_MIXER_MIC)
#define MSND_MASK_IMIX        (1 << MSND_MIXER_IMIX)
#define MSND_MASK_RECLEV      (1 << MSND_MIXER_RECLEV)
#define MSND_MASK_IGAIN       (1 << MSND_MIXER_IGAIN)
#define MSND_MASK_OGAIN       (1 << MSND_MIXER_OGAIN)
#define MSND_MASK_AUX         (1 << MSND_MIXER_AUX)
#define MSND_MASK_DIGITAL     (1 << MSND_MIXER_DIGITAL)





static int snd_msndmix_info_mux(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
{
      static char *texts[3] = {
            "Analog", "SPDIF", "MASS"
      };

      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_msndmix_get_mux(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
{
      multisound_dev_t *      msnd =      snd_kcontrol_chip(kcontrol);
      ucontrol->value.enumerated.item[0] = 0;

/*    if (msnd->recsrc & MSND_MASK_IMIX) {             this is the default
            ucontrol->value.enumerated.item[0] = 0;
      }
      else */if (msnd->recsrc & MSND_MASK_SYNTH) {
            ucontrol->value.enumerated.item[0] = 2;
      }
      else if ((msnd->recsrc & MSND_MASK_DIGITAL) && test_bit(F_HAVEDIGITAL, &msnd->flags)) {
            ucontrol->value.enumerated.item[0] = 1;
      }

      return 0;
}


static int snd_msndmix_set_mux( multisound_dev_t * msnd, int val)
{
      unsigned newrecsrc;
      int change;
      unsigned char msndbyte;
      
      //snd_printd( "   snd_msndmix_set_mux(, %i)\n", val);
      switch ( val){
      case 0:
            newrecsrc = MSND_MASK_IMIX;
            msndbyte = HDEXAR_SET_ANA_IN;
            break;
      case 1:
            newrecsrc = MSND_MASK_DIGITAL;
            msndbyte = HDEXAR_SET_DAT_IN;
            break;
      case 2:
            newrecsrc = MSND_MASK_SYNTH;
            msndbyte = HDEXAR_SET_SYNTH_IN;
            break;
      default:
            return -EINVAL;
      }
      if ( ( change  = ( newrecsrc != msnd->recsrc))){
            if ( 0 == snd_msnd_send_word( msnd, 0, 0, msndbyte))
                  if( 0 == snd_msnd_send_dsp_cmd_chk( msnd, HDEX_AUX_REQ))
                        msnd->recsrc = newrecsrc;
      }
      return change;
}


static int snd_msndmix_put_mux(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
{
      multisound_dev_t *      msnd =      snd_kcontrol_chip( kcontrol);
      return snd_msndmix_set_mux( msnd, ucontrol->value.enumerated.item[ 0]);
}


static int snd_msndmix_volume_info(snd_kcontrol_t * kcontrol, snd_ctl_elem_info_t * uinfo)
{
      uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
      uinfo->count = 2;
      uinfo->value.integer.min = 0;
      uinfo->value.integer.max = 100;
      return 0;
}

static int snd_msndmix_volume_get(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
{
      multisound_dev_t *      msnd =      snd_kcontrol_chip(kcontrol);
      int               addr =      kcontrol->private_value;

      ucontrol->value.integer.value[0] = ( msnd->left_levels[ addr] * 100) / 0xFFFF;
      ucontrol->value.integer.value[1] = ( msnd->right_levels[ addr] * 100) / 0xFFFF;
      return 0;
}


#define update_volm(a,b)                                    \
      isa_writew((dev->left_levels[a] >> 1) *                     \
             isa_readw(dev->SMA + SMA_wCurrMastVolLeft) / 0xffff, \
             dev->SMA + SMA_##b##Left);                     \
      isa_writew((dev->right_levels[a] >> 1)  *             \
             isa_readw(dev->SMA + SMA_wCurrMastVolRight) / 0xffff,      \
             dev->SMA + SMA_##b##Right);

#define update_potm(d,s,ar)                                 \
      isa_writeb((dev->left_levels[d] >> 8) *                     \
             isa_readw(dev->SMA + SMA_wCurrMastVolLeft) / 0xffff, \
             dev->SMA + SMA_##s##Left);                     \
      isa_writeb((dev->right_levels[d] >> 8) *                    \
             isa_readw(dev->SMA + SMA_wCurrMastVolRight) / 0xffff,      \
             dev->SMA + SMA_##s##Right);                    \
      if (snd_msnd_send_word( dev, 0, 0, ar) == 0)                \
            snd_msnd_send_dsp_cmd_chk( dev, HDEX_AUX_REQ);

#define update_pot(d,s,ar)                      \
      isa_writeb(dev->left_levels[d] >> 8,            \
             dev->SMA + SMA_##s##Left);         \
      isa_writeb(dev->right_levels[d] >> 8,           \
             dev->SMA + SMA_##s##Right);        \
      if (snd_msnd_send_word( dev, 0, 0, ar) == 0)    \
            snd_msnd_send_dsp_cmd_chk( dev, HDEX_AUX_REQ);


static int snd_msndmix_set( multisound_dev_t * dev, int d, int left, int right)
{
      int bLeft, bRight;
      int wLeft, wRight;
      int updatemaster = 0;

      //snd_printd( "mixer_set( multisound_dev_t * %X, d=%i, left=%i, right=%i\n",
      //          (unsigned)dev, d, left, right);

      if( d >= LEVEL_ENTRIES)
            return -EINVAL;

      bLeft = left * 0xff / 100;
      wLeft = left * 0xffff / 100;

      bRight = right * 0xff / 100;
      wRight = right * 0xffff / 100;

      dev->left_levels[d] = wLeft;
      dev->right_levels[d] = wRight;

      switch (d) {
            /* master volume unscaled controls */
      case MSND_MIXER_LINE:               /* line pot control */
            /* scaled by IMIX in digital mix */
            isa_writeb(bLeft, dev->SMA + SMA_bInPotPosLeft);
            isa_writeb(bRight, dev->SMA + SMA_bInPotPosRight);
            if (snd_msnd_send_word( dev, 0, 0, HDEXAR_IN_SET_POTS) == 0)
                  snd_msnd_send_dsp_cmd_chk( dev, HDEX_AUX_REQ);
            break;
#ifndef MSND_CLASSIC
      case MSND_MIXER_MIC:                /* mic pot control */
            /* scaled by IMIX in digital mix */
            isa_writeb(bLeft, dev->SMA + SMA_bMicPotPosLeft);
            isa_writeb(bRight, dev->SMA + SMA_bMicPotPosRight);
            if (snd_msnd_send_word( dev, 0, 0, HDEXAR_MIC_SET_POTS) == 0)
                  snd_msnd_send_dsp_cmd_chk( dev, HDEX_AUX_REQ);
            break;
#endif
      case MSND_MIXER_VOLUME:       /* master volume */
            isa_writew(wLeft, dev->SMA + SMA_wCurrMastVolLeft);
            isa_writew(wRight, dev->SMA + SMA_wCurrMastVolRight);
            /* fall through */

      case MSND_MIXER_AUX:                /* aux pot control */
            /* scaled by master volume */
            /* fall through */

            /* digital controls */
      case MSND_MIXER_SYNTH:              /* synth vol (dsp mix) */
      case MSND_MIXER_PCM:                /* pcm vol (dsp mix) */
      case MSND_MIXER_IMIX:               /* input monitor (dsp mix) */
            /* scaled by master volume */
            updatemaster = 1;
            break;

      default:
            return 0;
      }

      if (updatemaster) {
            /* update master volume scaled controls */
            update_volm(MSND_MIXER_PCM, wCurrPlayVol);
            update_volm(MSND_MIXER_IMIX, wCurrInVol);
#ifndef MSND_CLASSIC
            update_volm(MSND_MIXER_SYNTH, wCurrMHdrVol);
#endif
            update_potm(MSND_MIXER_AUX, bAuxPotPos, HDEXAR_AUX_SET_POTS);
      }

      return 0;
}


static int snd_msndmix_volume_put(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
{
      multisound_dev_t *msnd = snd_kcontrol_chip(kcontrol);
      int change, addr = kcontrol->private_value;
      int left, right;
      // unsigned long flags;
      //snd_printd( "snd_msndmix_volume_put( addr=%i, l=%i, r=%i)\n", addr, (int)ucontrol->value.integer.value[0], (int)ucontrol->value.integer.value[1]);

      left = ucontrol->value.integer.value[0] % 101;
      right = ucontrol->value.integer.value[1] % 101;
      // spin_lock_irqsave(&msnd->mixer_lock, flags);
      change =    msnd->left_levels[ addr] != left
            ||      msnd->right_levels[ addr] != right;
      snd_msndmix_set( msnd, addr, left, right);
      // spin_unlock__irqrestore(&msnd->mixer_lock, flags);
      return change;
}


#define DUMMY_VOLUME(xname, xindex, addr) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
  .info = snd_msndmix_volume_info, \
  .get = snd_msndmix_volume_get, .put = snd_msndmix_volume_put, \
  .private_value = addr }


static snd_kcontrol_new_t snd_msnd_controls[] = {
DUMMY_VOLUME(     "Master Volume",0, MSND_MIXER_VOLUME),
DUMMY_VOLUME(     "PCM Volume",     0, MSND_MIXER_PCM),
DUMMY_VOLUME(     "Aux Volume",     0, MSND_MIXER_AUX),
DUMMY_VOLUME(     "Line Volume",    0, MSND_MIXER_LINE),
DUMMY_VOLUME(     "Mic Volume",     0, MSND_MIXER_MIC),
DUMMY_VOLUME(     "Monitor",  0, MSND_MIXER_IMIX),
{
      .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
      .name = "Capture Source",
      .info = snd_msndmix_info_mux,
      .get = snd_msndmix_get_mux,
      .put = snd_msndmix_put_mux,
}
};



int __init snd_msndmix_new( multisound_dev_t * msnd)
{
      snd_card_t *card = msnd->card;
      unsigned int idx;
      int err;

      snd_assert(msnd != NULL, return -EINVAL);
      // spin_lock_init(&msnd->mixer_lock);
      strcpy(card->mixername, "MSND Pinnacle Mixer");

      for (idx = 0; idx < ARRAY_SIZE(snd_msnd_controls); idx++)
            if ( ( err = snd_ctl_add( card, snd_ctl_new1( snd_msnd_controls + idx, msnd))) < 0)
                  return err;

#ifndef MSND_CLASSIC
      //    snd_msndmix_force_recsrc( msnd, 0);
#endif

      return 0;
}



void snd_msndmix_setup( multisound_dev_t * dev)
{
      update_pot(MSND_MIXER_LINE, bInPotPos, HDEXAR_IN_SET_POTS);
      update_potm(MSND_MIXER_AUX, bAuxPotPos, HDEXAR_AUX_SET_POTS);
      update_volm(MSND_MIXER_PCM, wCurrPlayVol);
      update_volm(MSND_MIXER_IMIX, wCurrInVol);
#ifndef MSND_CLASSIC
      update_pot(MSND_MIXER_MIC, bMicPotPos, HDEXAR_MIC_SET_POTS);
      update_volm(MSND_MIXER_SYNTH, wCurrMHdrVol);
#endif

}


unsigned long snd_msndmix_force_recsrc( multisound_dev_t * dev, int recsrc)
{
//    snd_msndmix_set( dev, MSND_MIXER_VOLUME, 100, 100);
//    snd_msndmix_set( dev, MSND_MIXER_LINE, 70, 70);
//    snd_msndmix_set( dev, MSND_MIXER_IMIX, 100, 100);
      dev->recsrc = -1;
      return snd_msndmix_set_mux( dev, recsrc);
}