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revo.c

/*
 *   ALSA driver for ICEnsemble ICE1712 (Envy24)
 *
 *   Lowlevel functions for M-Audio Revolution 7.1
 *
 *    Copyright (c) 2003 Takashi Iwai <tiwai@suse.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.
 *
 *   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/interrupt.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <sound/core.h>

#include "ice1712.h"
#include "envy24ht.h"
#include "revo.h"

static void revo_i2s_mclk_changed(struct snd_ice1712 *ice)
{
      /* assert PRST# to converters; MT05 bit 7 */
      outb(inb(ICEMT1724(ice, AC97_CMD)) | 0x80, ICEMT1724(ice, AC97_CMD));
      mdelay(5);
      /* deassert PRST# */
      outb(inb(ICEMT1724(ice, AC97_CMD)) & ~0x80, ICEMT1724(ice, AC97_CMD));
}

/*
 * change the rate of envy24HT, AK4355 and AK4381
 */
static void revo_set_rate_val(struct snd_akm4xxx *ak, unsigned int rate)
{
      unsigned char old, tmp, dfs;
      int reg, shift;

      if (rate == 0)    /* no hint - S/PDIF input is master, simply return */
            return;

      /* adjust DFS on codecs */
      if (rate > 96000)
            dfs = 2;
      else if (rate > 48000)
            dfs = 1;
      else
            dfs = 0;

      if (ak->type == SND_AK4355 || ak->type == SND_AK4358) {
            reg = 2;
            shift = 4;
      } else {
            reg = 1;
            shift = 3;
      }
      tmp = snd_akm4xxx_get(ak, 0, reg);
      old = (tmp >> shift) & 0x03;
      if (old == dfs)
            return;

      /* reset DFS */
      snd_akm4xxx_reset(ak, 1);
      tmp = snd_akm4xxx_get(ak, 0, reg);
      tmp &= ~(0x03 << shift);
      tmp |= dfs << shift;
      // snd_akm4xxx_write(ak, 0, reg, tmp);
      snd_akm4xxx_set(ak, 0, reg, tmp); /* the value is written in reset(0) */
      snd_akm4xxx_reset(ak, 0);
}

/*
 * initialize the chips on M-Audio Revolution cards
 */

#define AK_DAC(xname,xch) { .name = xname, .num_channels = xch }

static struct snd_akm4xxx_dac_channel revo71_front[] = {
      AK_DAC("PCM Playback Volume", 2)
};

static struct snd_akm4xxx_dac_channel revo71_surround[] = {
      AK_DAC("PCM Center Playback Volume", 1),
      AK_DAC("PCM LFE Playback Volume", 1),
      AK_DAC("PCM Side Playback Volume", 2),
      AK_DAC("PCM Rear Playback Volume", 2),
};

static struct snd_akm4xxx_dac_channel revo51_dac[] = {
      AK_DAC("PCM Playback Volume", 2),
      AK_DAC("PCM Center Playback Volume", 1),
      AK_DAC("PCM LFE Playback Volume", 1),
      AK_DAC("PCM Rear Playback Volume", 2),
};

static struct snd_akm4xxx_adc_channel revo51_adc[] = {
      {
            .name = "PCM Capture Volume",
            .switch_name = "PCM Capture Switch",
            .num_channels = 2
      },
};

static struct snd_akm4xxx akm_revo_front __devinitdata = {
      .type = SND_AK4381,
      .num_dacs = 2,
      .ops = {
            .set_rate_val = revo_set_rate_val
      },
      .dac_info = revo71_front,
};

static struct snd_ak4xxx_private akm_revo_front_priv __devinitdata = {
      .caddr = 1,
      .cif = 0,
      .data_mask = VT1724_REVO_CDOUT,
      .clk_mask = VT1724_REVO_CCLK,
      .cs_mask = VT1724_REVO_CS0 | VT1724_REVO_CS1 | VT1724_REVO_CS2,
      .cs_addr = VT1724_REVO_CS0 | VT1724_REVO_CS2,
      .cs_none = VT1724_REVO_CS0 | VT1724_REVO_CS1 | VT1724_REVO_CS2,
      .add_flags = VT1724_REVO_CCLK, /* high at init */
      .mask_flags = 0,
};

static struct snd_akm4xxx akm_revo_surround __devinitdata = {
      .type = SND_AK4355,
      .idx_offset = 1,
      .num_dacs = 6,
      .ops = {
            .set_rate_val = revo_set_rate_val
      },
      .dac_info = revo71_surround,
};

static struct snd_ak4xxx_private akm_revo_surround_priv __devinitdata = {
      .caddr = 3,
      .cif = 0,
      .data_mask = VT1724_REVO_CDOUT,
      .clk_mask = VT1724_REVO_CCLK,
      .cs_mask = VT1724_REVO_CS0 | VT1724_REVO_CS1 | VT1724_REVO_CS2,
      .cs_addr = VT1724_REVO_CS0 | VT1724_REVO_CS1,
      .cs_none = VT1724_REVO_CS0 | VT1724_REVO_CS1 | VT1724_REVO_CS2,
      .add_flags = VT1724_REVO_CCLK, /* high at init */
      .mask_flags = 0,
};

static struct snd_akm4xxx akm_revo51 __devinitdata = {
      .type = SND_AK4358,
      .num_dacs = 6,
      .ops = {
            .set_rate_val = revo_set_rate_val
      },
      .dac_info = revo51_dac,
};

static struct snd_ak4xxx_private akm_revo51_priv __devinitdata = {
      .caddr = 2,
      .cif = 0,
      .data_mask = VT1724_REVO_CDOUT,
      .clk_mask = VT1724_REVO_CCLK,
      .cs_mask = VT1724_REVO_CS0 | VT1724_REVO_CS1 | VT1724_REVO_CS2,
      .cs_addr = VT1724_REVO_CS1 | VT1724_REVO_CS2,
      .cs_none = VT1724_REVO_CS0 | VT1724_REVO_CS1 | VT1724_REVO_CS2,
      .add_flags = VT1724_REVO_CCLK, /* high at init */
      .mask_flags = 0,
};

static struct snd_akm4xxx akm_revo51_adc __devinitdata = {
      .type = SND_AK5365,
      .num_adcs = 2,
      .adc_info = revo51_adc,
};

static struct snd_ak4xxx_private akm_revo51_adc_priv __devinitdata = {
      .caddr = 2,
      .cif = 0,
      .data_mask = VT1724_REVO_CDOUT,
      .clk_mask = VT1724_REVO_CCLK,
      .cs_mask = VT1724_REVO_CS0 | VT1724_REVO_CS1 | VT1724_REVO_CS2,
      .cs_addr = VT1724_REVO_CS0 | VT1724_REVO_CS2,
      .cs_none = VT1724_REVO_CS0 | VT1724_REVO_CS1 | VT1724_REVO_CS2,
      .add_flags = VT1724_REVO_CCLK, /* high at init */
      .mask_flags = 0,
};

static int __devinit revo_init(struct snd_ice1712 *ice)
{
      struct snd_akm4xxx *ak;
      int err;

      /* determine I2C, DACs and ADCs */
      switch (ice->eeprom.subvendor) {
      case VT1724_SUBDEVICE_REVOLUTION71:
            ice->num_total_dacs = 8;
            ice->num_total_adcs = 2;
            ice->gpio.i2s_mclk_changed = revo_i2s_mclk_changed;
            break;
      case VT1724_SUBDEVICE_REVOLUTION51:
            ice->num_total_dacs = 6;
            ice->num_total_adcs = 2;
            break;
      default:
            snd_BUG();
            return -EINVAL;
      }

      /* second stage of initialization, analog parts and others */
      ak = ice->akm = kcalloc(2, sizeof(struct snd_akm4xxx), GFP_KERNEL);
      if (! ak)
            return -ENOMEM;
      ice->akm_codecs = 2;
      switch (ice->eeprom.subvendor) {
      case VT1724_SUBDEVICE_REVOLUTION71:
            ice->akm_codecs = 2;
            if ((err = snd_ice1712_akm4xxx_init(ak, &akm_revo_front, &akm_revo_front_priv, ice)) < 0)
                  return err;
            if ((err = snd_ice1712_akm4xxx_init(ak + 1, &akm_revo_surround, &akm_revo_surround_priv, ice)) < 0)
                  return err;
            /* unmute all codecs */
            snd_ice1712_gpio_write_bits(ice, VT1724_REVO_MUTE, VT1724_REVO_MUTE);
            break;
      case VT1724_SUBDEVICE_REVOLUTION51:
            ice->akm_codecs = 2;
            if ((err = snd_ice1712_akm4xxx_init(ak, &akm_revo51, &akm_revo51_priv, ice)) < 0)
                  return err;
            err = snd_ice1712_akm4xxx_init(ak + 1, &akm_revo51_adc,
                                     &akm_revo51_adc_priv, ice);
            if (err < 0)
                  return err;
            /* unmute all codecs - needed! */
            snd_ice1712_gpio_write_bits(ice, VT1724_REVO_MUTE, VT1724_REVO_MUTE);
            break;
      }

      return 0;
}


static int __devinit revo_add_controls(struct snd_ice1712 *ice)
{
      int err;

      switch (ice->eeprom.subvendor) {
      case VT1724_SUBDEVICE_REVOLUTION71:
      case VT1724_SUBDEVICE_REVOLUTION51:
            err = snd_ice1712_akm4xxx_build_controls(ice);
            if (err < 0)
                  return err;
      }
      return 0;
}

/* entry point */
struct snd_ice1712_card_info snd_vt1724_revo_cards[] __devinitdata = {
      {
            .subvendor = VT1724_SUBDEVICE_REVOLUTION71,
            .name = "M Audio Revolution-7.1",
            .model = "revo71",
            .chip_init = revo_init,
            .build_controls = revo_add_controls,
      },
      {
            .subvendor = VT1724_SUBDEVICE_REVOLUTION51,
            .name = "M Audio Revolution-5.1",
            .model = "revo51",
            .chip_init = revo_init,
            .build_controls = revo_add_controls,
      },
      { } /* terminator */
};

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