/*
   * PMac Burgundy lowlevel functions
   *
   * Copyright (c) by Takashi Iwai <tiwai@suse.de>
   * code based on dmasound.c.
   *
   *   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/init.h>

  #include <linux/delay.h>
  #include <sound/core.h>
  #include "pmac.h"
  #include "burgundy.h"
  
  
  /* Waits for busy flag to clear */

  static inline void

  snd_pmac_burgundy_busy_wait(struct snd_pmac *chip)

  {
  	int timeout = 50;
  	while ((in_le32(&chip->awacs->codec_ctrl) & MASK_NEWECMD) && timeout--)
  		udelay(1);

  	if (timeout < 0)

  		printk(KERN_DEBUG "burgundy_busy_wait: timeout
  ");
  }

  static inline void

  snd_pmac_burgundy_extend_wait(struct snd_pmac *chip)

  {
  	int timeout;
  	timeout = 50;
  	while (!(in_le32(&chip->awacs->codec_stat) & MASK_EXTEND) && timeout--)
  		udelay(1);

  	if (timeout < 0)

  		printk(KERN_DEBUG "burgundy_extend_wait: timeout #1
  ");
  	timeout = 50;
  	while ((in_le32(&chip->awacs->codec_stat) & MASK_EXTEND) && timeout--)
  		udelay(1);

  	if (timeout < 0)

  		printk(KERN_DEBUG "burgundy_extend_wait: timeout #2
  ");
  }
  
  static void

  snd_pmac_burgundy_wcw(struct snd_pmac *chip, unsigned addr, unsigned val)

  {
  	out_le32(&chip->awacs->codec_ctrl, addr + 0x200c00 + (val & 0xff));
  	snd_pmac_burgundy_busy_wait(chip);
  	out_le32(&chip->awacs->codec_ctrl, addr + 0x200d00 +((val>>8) & 0xff));
  	snd_pmac_burgundy_busy_wait(chip);
  	out_le32(&chip->awacs->codec_ctrl, addr + 0x200e00 +((val>>16) & 0xff));
  	snd_pmac_burgundy_busy_wait(chip);
  	out_le32(&chip->awacs->codec_ctrl, addr + 0x200f00 +((val>>24) & 0xff));
  	snd_pmac_burgundy_busy_wait(chip);
  }
  
  static unsigned

  snd_pmac_burgundy_rcw(struct snd_pmac *chip, unsigned addr)

  {
  	unsigned val = 0;
  	unsigned long flags;
  
  	spin_lock_irqsave(&chip->reg_lock, flags);
  
  	out_le32(&chip->awacs->codec_ctrl, addr + 0x100000);
  	snd_pmac_burgundy_busy_wait(chip);
  	snd_pmac_burgundy_extend_wait(chip);
  	val += (in_le32(&chip->awacs->codec_stat) >> 4) & 0xff;
  
  	out_le32(&chip->awacs->codec_ctrl, addr + 0x100100);
  	snd_pmac_burgundy_busy_wait(chip);
  	snd_pmac_burgundy_extend_wait(chip);
  	val += ((in_le32(&chip->awacs->codec_stat)>>4) & 0xff) <<8;
  
  	out_le32(&chip->awacs->codec_ctrl, addr + 0x100200);
  	snd_pmac_burgundy_busy_wait(chip);
  	snd_pmac_burgundy_extend_wait(chip);
  	val += ((in_le32(&chip->awacs->codec_stat)>>4) & 0xff) <<16;
  
  	out_le32(&chip->awacs->codec_ctrl, addr + 0x100300);
  	snd_pmac_burgundy_busy_wait(chip);
  	snd_pmac_burgundy_extend_wait(chip);
  	val += ((in_le32(&chip->awacs->codec_stat)>>4) & 0xff) <<24;
  
  	spin_unlock_irqrestore(&chip->reg_lock, flags);
  
  	return val;
  }
  
  static void

  snd_pmac_burgundy_wcb(struct snd_pmac *chip, unsigned int addr,
  		      unsigned int val)

  {
  	out_le32(&chip->awacs->codec_ctrl, addr + 0x300000 + (val & 0xff));
  	snd_pmac_burgundy_busy_wait(chip);
  }
  
  static unsigned

  snd_pmac_burgundy_rcb(struct snd_pmac *chip, unsigned int addr)

  {
  	unsigned val = 0;
  	unsigned long flags;
  
  	spin_lock_irqsave(&chip->reg_lock, flags);
  
  	out_le32(&chip->awacs->codec_ctrl, addr + 0x100000);
  	snd_pmac_burgundy_busy_wait(chip);
  	snd_pmac_burgundy_extend_wait(chip);
  	val += (in_le32(&chip->awacs->codec_stat) >> 4) & 0xff;
  
  	spin_unlock_irqrestore(&chip->reg_lock, flags);
  
  	return val;
  }

  #define BASE2ADDR(base)	((base) << 12)
  #define ADDR2BASE(addr)	((addr) >> 12)

  /*

   * Burgundy volume: 0 - 100, stereo, word reg

   */
  static void

  snd_pmac_burgundy_write_volume(struct snd_pmac *chip, unsigned int address,
  			       long *volume, int shift)

  {
  	int hardvolume, lvolume, rvolume;

  	if (volume[0] < 0 || volume[0] > 100 ||
  	    volume[1] < 0 || volume[1] > 100)
  		return; /* -EINVAL */

  	lvolume = volume[0] ? volume[0] + BURGUNDY_VOLUME_OFFSET : 0;
  	rvolume = volume[1] ? volume[1] + BURGUNDY_VOLUME_OFFSET : 0;
  
  	hardvolume = lvolume + (rvolume << shift);
  	if (shift == 8)
  		hardvolume |= hardvolume << 16;
  
  	snd_pmac_burgundy_wcw(chip, address, hardvolume);
  }
  
  static void

  snd_pmac_burgundy_read_volume(struct snd_pmac *chip, unsigned int address,
  			      long *volume, int shift)

  {
  	int wvolume;
  
  	wvolume = snd_pmac_burgundy_rcw(chip, address);
  
  	volume[0] = wvolume & 0xff;
  	if (volume[0] >= BURGUNDY_VOLUME_OFFSET)
  		volume[0] -= BURGUNDY_VOLUME_OFFSET;
  	else
  		volume[0] = 0;
  	volume[1] = (wvolume >> shift) & 0xff;
  	if (volume[1] >= BURGUNDY_VOLUME_OFFSET)
  		volume[1] -= BURGUNDY_VOLUME_OFFSET;
  	else
  		volume[1] = 0;
  }

  static int snd_pmac_burgundy_info_volume(struct snd_kcontrol *kcontrol,
  					 struct snd_ctl_elem_info *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_pmac_burgundy_get_volume(struct snd_kcontrol *kcontrol,
  					struct snd_ctl_elem_value *ucontrol)

  {

  	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);

  	unsigned int addr = BASE2ADDR(kcontrol->private_value & 0xff);
  	int shift = (kcontrol->private_value >> 8) & 0xff;

  	snd_pmac_burgundy_read_volume(chip, addr,
  				      ucontrol->value.integer.value, shift);

  	return 0;
  }

  static int snd_pmac_burgundy_put_volume(struct snd_kcontrol *kcontrol,
  					struct snd_ctl_elem_value *ucontrol)

  {

  	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);

  	unsigned int addr = BASE2ADDR(kcontrol->private_value & 0xff);
  	int shift = (kcontrol->private_value >> 8) & 0xff;
  	long nvoices[2];

  	snd_pmac_burgundy_write_volume(chip, addr,
  				       ucontrol->value.integer.value, shift);

  	snd_pmac_burgundy_read_volume(chip, addr, nvoices, shift);
  	return (nvoices[0] != ucontrol->value.integer.value[0] ||
  		nvoices[1] != ucontrol->value.integer.value[1]);
  }

  #define BURGUNDY_VOLUME_W(xname, xindex, addr, shift) \

  { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex,\
    .info = snd_pmac_burgundy_info_volume,\
    .get = snd_pmac_burgundy_get_volume,\
    .put = snd_pmac_burgundy_put_volume,\
    .private_value = ((ADDR2BASE(addr) & 0xff) | ((shift) << 8)) }

  /*
   * Burgundy volume: 0 - 100, stereo, 2-byte reg
   */
  static void
  snd_pmac_burgundy_write_volume_2b(struct snd_pmac *chip, unsigned int address,
  				  long *volume, int off)
  {
  	int lvolume, rvolume;
  
  	off |= off << 2;
  	lvolume = volume[0] ? volume[0] + BURGUNDY_VOLUME_OFFSET : 0;
  	rvolume = volume[1] ? volume[1] + BURGUNDY_VOLUME_OFFSET : 0;
  
  	snd_pmac_burgundy_wcb(chip, address + off, lvolume);
  	snd_pmac_burgundy_wcb(chip, address + off + 0x500, rvolume);
  }
  
  static void
  snd_pmac_burgundy_read_volume_2b(struct snd_pmac *chip, unsigned int address,
  				 long *volume, int off)
  {
  	volume[0] = snd_pmac_burgundy_rcb(chip, address + off);
  	if (volume[0] >= BURGUNDY_VOLUME_OFFSET)
  		volume[0] -= BURGUNDY_VOLUME_OFFSET;
  	else
  		volume[0] = 0;
  	volume[1] = snd_pmac_burgundy_rcb(chip, address + off + 0x100);
  	if (volume[1] >= BURGUNDY_VOLUME_OFFSET)
  		volume[1] -= BURGUNDY_VOLUME_OFFSET;
  	else
  		volume[1] = 0;
  }
  
  static int snd_pmac_burgundy_info_volume_2b(struct snd_kcontrol *kcontrol,
  					    struct snd_ctl_elem_info *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_pmac_burgundy_get_volume_2b(struct snd_kcontrol *kcontrol,
  					   struct snd_ctl_elem_value *ucontrol)
  {
  	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
  	unsigned int addr = BASE2ADDR(kcontrol->private_value & 0xff);
  	int off = kcontrol->private_value & 0x300;
  	snd_pmac_burgundy_read_volume_2b(chip, addr,
  			ucontrol->value.integer.value, off);
  	return 0;
  }
  
  static int snd_pmac_burgundy_put_volume_2b(struct snd_kcontrol *kcontrol,
  					   struct snd_ctl_elem_value *ucontrol)
  {
  	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
  	unsigned int addr = BASE2ADDR(kcontrol->private_value & 0xff);
  	int off = kcontrol->private_value & 0x300;
  	long nvoices[2];
  
  	snd_pmac_burgundy_write_volume_2b(chip, addr,
  			ucontrol->value.integer.value, off);
  	snd_pmac_burgundy_read_volume_2b(chip, addr, nvoices, off);
  	return (nvoices[0] != ucontrol->value.integer.value[0] ||
  		nvoices[1] != ucontrol->value.integer.value[1]);
  }
  
  #define BURGUNDY_VOLUME_2B(xname, xindex, addr, off) \
  { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex,\
    .info = snd_pmac_burgundy_info_volume_2b,\
    .get = snd_pmac_burgundy_get_volume_2b,\
    .put = snd_pmac_burgundy_put_volume_2b,\
    .private_value = ((ADDR2BASE(addr) & 0xff) | ((off) << 8)) }
  
  /*
   * Burgundy gain/attenuation: 0 - 15, mono/stereo, byte reg
   */
  static int snd_pmac_burgundy_info_gain(struct snd_kcontrol *kcontrol,
  				       struct snd_ctl_elem_info *uinfo)
  {
  	int stereo = (kcontrol->private_value >> 24) & 1;
  	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
  	uinfo->count = stereo + 1;
  	uinfo->value.integer.min = 0;
  	uinfo->value.integer.max = 15;
  	return 0;
  }

  static int snd_pmac_burgundy_get_gain(struct snd_kcontrol *kcontrol,
  				      struct snd_ctl_elem_value *ucontrol)
  {
  	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
  	unsigned int addr = BASE2ADDR(kcontrol->private_value & 0xff);
  	int stereo = (kcontrol->private_value >> 24) & 1;
  	int atten = (kcontrol->private_value >> 25) & 1;
  	int oval;
  
  	oval = snd_pmac_burgundy_rcb(chip, addr);
  	if (atten)
  		oval = ~oval & 0xff;
  	ucontrol->value.integer.value[0] = oval & 0xf;
  	if (stereo)
  		ucontrol->value.integer.value[1] = (oval >> 4) & 0xf;
  	return 0;
  }
  
  static int snd_pmac_burgundy_put_gain(struct snd_kcontrol *kcontrol,
  				      struct snd_ctl_elem_value *ucontrol)
  {
  	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
  	unsigned int addr = BASE2ADDR(kcontrol->private_value & 0xff);
  	int stereo = (kcontrol->private_value >> 24) & 1;
  	int atten = (kcontrol->private_value >> 25) & 1;
  	int oval, val;
  
  	oval = snd_pmac_burgundy_rcb(chip, addr);
  	if (atten)
  		oval = ~oval & 0xff;
  	val = ucontrol->value.integer.value[0];
  	if (stereo)
  		val |= ucontrol->value.integer.value[1] << 4;
  	else
  		val |= ucontrol->value.integer.value[0] << 4;
  	if (atten)
  		val = ~val & 0xff;
  	snd_pmac_burgundy_wcb(chip, addr, val);
  	return val != oval;
  }
  
  #define BURGUNDY_VOLUME_B(xname, xindex, addr, stereo, atten) \
  { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex,\
    .info = snd_pmac_burgundy_info_gain,\
    .get = snd_pmac_burgundy_get_gain,\
    .put = snd_pmac_burgundy_put_gain,\
    .private_value = (ADDR2BASE(addr) | ((stereo) << 24) | ((atten) << 25)) }
  
  /*
   * Burgundy switch: 0/1, mono/stereo, word reg
   */
  static int snd_pmac_burgundy_info_switch_w(struct snd_kcontrol *kcontrol,
  					   struct snd_ctl_elem_info *uinfo)

  {
  	int stereo = (kcontrol->private_value >> 24) & 1;
  	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
  	uinfo->count = stereo + 1;
  	uinfo->value.integer.min = 0;
  	uinfo->value.integer.max = 1;
  	return 0;
  }

  static int snd_pmac_burgundy_get_switch_w(struct snd_kcontrol *kcontrol,
  					  struct snd_ctl_elem_value *ucontrol)

  {

  	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);

  	unsigned int addr = BASE2ADDR((kcontrol->private_value >> 16) & 0xff);
  	int lmask = 1 << (kcontrol->private_value & 0xff);
  	int rmask = 1 << ((kcontrol->private_value >> 8) & 0xff);

  	int stereo = (kcontrol->private_value >> 24) & 1;

  	int val = snd_pmac_burgundy_rcw(chip, addr);

  	ucontrol->value.integer.value[0] = (val & lmask) ? 1 : 0;
  	if (stereo)
  		ucontrol->value.integer.value[1] = (val & rmask) ? 1 : 0;
  	return 0;
  }

  static int snd_pmac_burgundy_put_switch_w(struct snd_kcontrol *kcontrol,
  					  struct snd_ctl_elem_value *ucontrol)

  {

  	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);

  	unsigned int addr = BASE2ADDR((kcontrol->private_value >> 16) & 0xff);
  	int lmask = 1 << (kcontrol->private_value & 0xff);
  	int rmask = 1 << ((kcontrol->private_value >> 8) & 0xff);

  	int stereo = (kcontrol->private_value >> 24) & 1;
  	int val, oval;

  	oval = snd_pmac_burgundy_rcw(chip, addr);
  	val = oval & ~(lmask | (stereo ? rmask : 0));

  	if (ucontrol->value.integer.value[0])
  		val |= lmask;
  	if (stereo && ucontrol->value.integer.value[1])
  		val |= rmask;

  	snd_pmac_burgundy_wcw(chip, addr, val);

  	return val != oval;
  }

  #define BURGUNDY_SWITCH_W(xname, xindex, addr, lbit, rbit, stereo) \

  { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex,\

    .info = snd_pmac_burgundy_info_switch_w,\
    .get = snd_pmac_burgundy_get_switch_w,\
    .put = snd_pmac_burgundy_put_switch_w,\
    .private_value = ((lbit) | ((rbit) << 8)\
  		| (ADDR2BASE(addr) << 16) | ((stereo) << 24)) }
  
  /*
   * Burgundy switch: 0/1, mono/stereo, byte reg, bit mask
   */
  static int snd_pmac_burgundy_info_switch_b(struct snd_kcontrol *kcontrol,
  					   struct snd_ctl_elem_info *uinfo)

  {
  	int stereo = (kcontrol->private_value >> 24) & 1;

  	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;

  	uinfo->count = stereo + 1;
  	uinfo->value.integer.min = 0;

  	uinfo->value.integer.max = 1;

  	return 0;
  }

  static int snd_pmac_burgundy_get_switch_b(struct snd_kcontrol *kcontrol,
  					  struct snd_ctl_elem_value *ucontrol)

  {

  	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);

  	unsigned int addr = BASE2ADDR((kcontrol->private_value >> 16) & 0xff);
  	int lmask = kcontrol->private_value & 0xff;
  	int rmask = (kcontrol->private_value >> 8) & 0xff;

  	int stereo = (kcontrol->private_value >> 24) & 1;

  	int val = snd_pmac_burgundy_rcb(chip, addr);
  	ucontrol->value.integer.value[0] = (val & lmask) ? 1 : 0;

  	if (stereo)

  		ucontrol->value.integer.value[1] = (val & rmask) ? 1 : 0;

  	return 0;
  }

  static int snd_pmac_burgundy_put_switch_b(struct snd_kcontrol *kcontrol,
  					  struct snd_ctl_elem_value *ucontrol)

  {

  	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);

  	unsigned int addr = BASE2ADDR((kcontrol->private_value >> 16) & 0xff);
  	int lmask = kcontrol->private_value & 0xff;
  	int rmask = (kcontrol->private_value >> 8) & 0xff;

  	int stereo = (kcontrol->private_value >> 24) & 1;

  	int val, oval;
  	oval = snd_pmac_burgundy_rcb(chip, addr);
  	val = oval & ~(lmask | rmask);
  	if (ucontrol->value.integer.value[0])
  		val |= lmask;
  	if (stereo && ucontrol->value.integer.value[1])
  		val |= rmask;

  	snd_pmac_burgundy_wcb(chip, addr, val);
  	return val != oval;
  }

  #define BURGUNDY_SWITCH_B(xname, xindex, addr, lmask, rmask, stereo) \

  { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex,\

    .info = snd_pmac_burgundy_info_switch_b,\
    .get = snd_pmac_burgundy_get_switch_b,\
    .put = snd_pmac_burgundy_put_switch_b,\
    .private_value = ((lmask) | ((rmask) << 8)\
  		| (ADDR2BASE(addr) << 16) | ((stereo) << 24)) }

  /*
   * Burgundy mixers
   */

  static struct snd_kcontrol_new snd_pmac_burgundy_mixers[] __devinitdata = {

  	BURGUNDY_VOLUME_W("Master Playback Volume", 0,
  			MASK_ADDR_BURGUNDY_MASTER_VOLUME, 8),
  	BURGUNDY_VOLUME_W("CD Capture Volume", 0,
  			MASK_ADDR_BURGUNDY_VOLCD, 16),
  	BURGUNDY_VOLUME_2B("Input Capture Volume", 0,
  			MASK_ADDR_BURGUNDY_VOLMIX01, 2),
  	BURGUNDY_VOLUME_2B("Mixer Playback Volume", 0,
  			MASK_ADDR_BURGUNDY_VOLMIX23, 0),
  	BURGUNDY_VOLUME_B("CD Gain Capture Volume", 0,
  			MASK_ADDR_BURGUNDY_GAINCD, 1, 0),
  	BURGUNDY_SWITCH_W("Master Capture Switch", 0,
  			MASK_ADDR_BURGUNDY_OUTPUTENABLES, 24, 0, 0),
  	BURGUNDY_SWITCH_W("CD Capture Switch", 0,
  			MASK_ADDR_BURGUNDY_CAPTURESELECTS, 0, 16, 1),
  	BURGUNDY_SWITCH_W("CD Playback Switch", 0,
  			MASK_ADDR_BURGUNDY_OUTPUTSELECTS, 0, 16, 1),
  /*	BURGUNDY_SWITCH_W("Loop Capture Switch", 0,
   *		MASK_ADDR_BURGUNDY_CAPTURESELECTS, 8, 24, 1),
   *	BURGUNDY_SWITCH_B("Mixer out Capture Switch", 0,
   *		MASK_ADDR_BURGUNDY_HOSTIFAD, 0x02, 0, 0),
   *	BURGUNDY_SWITCH_B("Mixer Capture Switch", 0,
   *		MASK_ADDR_BURGUNDY_HOSTIFAD, 0x01, 0, 0),
   *	BURGUNDY_SWITCH_B("PCM out Capture Switch", 0,
   *		MASK_ADDR_BURGUNDY_HOSTIFEH, 0x02, 0, 0),
   */	BURGUNDY_SWITCH_B("PCM Capture Switch", 0,
  			MASK_ADDR_BURGUNDY_HOSTIFEH, 0x01, 0, 0)
  };

  static struct snd_kcontrol_new snd_pmac_burgundy_mixers_imac[] __devinitdata = {

  	BURGUNDY_VOLUME_W("Line in Capture Volume", 0,
  			MASK_ADDR_BURGUNDY_VOLLINE, 16),
  	BURGUNDY_VOLUME_W("Mic Capture Volume", 0,
  			MASK_ADDR_BURGUNDY_VOLMIC, 16),
  	BURGUNDY_VOLUME_B("Line in Gain Capture Volume", 0,
  			MASK_ADDR_BURGUNDY_GAINLINE, 1, 0),
  	BURGUNDY_VOLUME_B("Mic Gain Capture Volume", 0,
  			MASK_ADDR_BURGUNDY_GAINMIC, 1, 0),

  	BURGUNDY_VOLUME_B("Speaker Playback Volume", 0,

  			MASK_ADDR_BURGUNDY_ATTENSPEAKER, 1, 1),
  	BURGUNDY_VOLUME_B("Line out Playback Volume", 0,
  			MASK_ADDR_BURGUNDY_ATTENLINEOUT, 1, 1),
  	BURGUNDY_VOLUME_B("Headphone Playback Volume", 0,
  			MASK_ADDR_BURGUNDY_ATTENHP, 1, 1),
  	BURGUNDY_SWITCH_W("Line in Capture Switch", 0,
  			MASK_ADDR_BURGUNDY_CAPTURESELECTS, 1, 17, 1),
  	BURGUNDY_SWITCH_W("Mic Capture Switch", 0,
  			MASK_ADDR_BURGUNDY_CAPTURESELECTS, 2, 18, 1),
  	BURGUNDY_SWITCH_W("Line in Playback Switch", 0,
  			MASK_ADDR_BURGUNDY_OUTPUTSELECTS, 1, 17, 1),
  	BURGUNDY_SWITCH_W("Mic Playback Switch", 0,
  			MASK_ADDR_BURGUNDY_OUTPUTSELECTS, 2, 18, 1),
  	BURGUNDY_SWITCH_B("Mic Boost Capture Switch", 0,
  			MASK_ADDR_BURGUNDY_INPBOOST, 0x40, 0x80, 1)
  };

  static struct snd_kcontrol_new snd_pmac_burgundy_mixers_pmac[] __devinitdata = {

  	BURGUNDY_VOLUME_W("Line in Capture Volume", 0,
  			MASK_ADDR_BURGUNDY_VOLMIC, 16),
  	BURGUNDY_VOLUME_B("Line in Gain Capture Volume", 0,
  			MASK_ADDR_BURGUNDY_GAINMIC, 1, 0),

  	BURGUNDY_VOLUME_B("Speaker Playback Volume", 0,

  			MASK_ADDR_BURGUNDY_ATTENMONO, 0, 1),
  	BURGUNDY_VOLUME_B("Line out Playback Volume", 0,
  			MASK_ADDR_BURGUNDY_ATTENSPEAKER, 1, 1),
  	BURGUNDY_SWITCH_W("Line in Capture Switch", 0,
  			MASK_ADDR_BURGUNDY_CAPTURESELECTS, 2, 18, 1),
  	BURGUNDY_SWITCH_W("Line in Playback Switch", 0,
  			MASK_ADDR_BURGUNDY_OUTPUTSELECTS, 2, 18, 1),
  /*	BURGUNDY_SWITCH_B("Line in Boost Capture Switch", 0,
   *		MASK_ADDR_BURGUNDY_INPBOOST, 0x40, 0x80, 1) */
  };

  static struct snd_kcontrol_new snd_pmac_burgundy_master_sw_imac __devinitdata =

  BURGUNDY_SWITCH_B("Master Playback Switch", 0,
  	MASK_ADDR_BURGUNDY_MORE_OUTPUTENABLES,
  	BURGUNDY_OUTPUT_LEFT | BURGUNDY_LINEOUT_LEFT | BURGUNDY_HP_LEFT,
  	BURGUNDY_OUTPUT_RIGHT | BURGUNDY_LINEOUT_RIGHT | BURGUNDY_HP_RIGHT, 1);

  static struct snd_kcontrol_new snd_pmac_burgundy_master_sw_pmac __devinitdata =

  BURGUNDY_SWITCH_B("Master Playback Switch", 0,
  	MASK_ADDR_BURGUNDY_MORE_OUTPUTENABLES,
  	BURGUNDY_OUTPUT_INTERN
  	| BURGUNDY_OUTPUT_LEFT, BURGUNDY_OUTPUT_RIGHT, 1);

  static struct snd_kcontrol_new snd_pmac_burgundy_speaker_sw_imac __devinitdata =

  BURGUNDY_SWITCH_B("Speaker Playback Switch", 0,

  	MASK_ADDR_BURGUNDY_MORE_OUTPUTENABLES,
  	BURGUNDY_OUTPUT_LEFT, BURGUNDY_OUTPUT_RIGHT, 1);

  static struct snd_kcontrol_new snd_pmac_burgundy_speaker_sw_pmac __devinitdata =

  BURGUNDY_SWITCH_B("Speaker Playback Switch", 0,

  	MASK_ADDR_BURGUNDY_MORE_OUTPUTENABLES,
  	BURGUNDY_OUTPUT_INTERN, 0, 0);

  static struct snd_kcontrol_new snd_pmac_burgundy_line_sw_imac __devinitdata =

  BURGUNDY_SWITCH_B("Line out Playback Switch", 0,
  	MASK_ADDR_BURGUNDY_MORE_OUTPUTENABLES,
  	BURGUNDY_LINEOUT_LEFT, BURGUNDY_LINEOUT_RIGHT, 1);

  static struct snd_kcontrol_new snd_pmac_burgundy_line_sw_pmac __devinitdata =

  BURGUNDY_SWITCH_B("Line out Playback Switch", 0,
  	MASK_ADDR_BURGUNDY_MORE_OUTPUTENABLES,
  	BURGUNDY_OUTPUT_LEFT, BURGUNDY_OUTPUT_RIGHT, 1);

  static struct snd_kcontrol_new snd_pmac_burgundy_hp_sw_imac __devinitdata =

  BURGUNDY_SWITCH_B("Headphone Playback Switch", 0,
  	MASK_ADDR_BURGUNDY_MORE_OUTPUTENABLES,
  	BURGUNDY_HP_LEFT, BURGUNDY_HP_RIGHT, 1);

  
  
  #ifdef PMAC_SUPPORT_AUTOMUTE
  /*
   * auto-mute stuffs
   */

  static int snd_pmac_burgundy_detect_headphone(struct snd_pmac *chip)

  {
  	return (in_le32(&chip->awacs->codec_stat) & chip->hp_stat_mask) ? 1 : 0;
  }

  static void snd_pmac_burgundy_update_automute(struct snd_pmac *chip, int do_notify)

  {
  	if (chip->auto_mute) {

  		int imac = of_machine_is_compatible("iMac");

  		int reg, oreg;

  		reg = oreg = snd_pmac_burgundy_rcb(chip,
  				MASK_ADDR_BURGUNDY_MORE_OUTPUTENABLES);
  		reg &= imac ? ~(BURGUNDY_OUTPUT_LEFT | BURGUNDY_OUTPUT_RIGHT
  				| BURGUNDY_HP_LEFT | BURGUNDY_HP_RIGHT)
  			: ~(BURGUNDY_OUTPUT_LEFT | BURGUNDY_OUTPUT_RIGHT
  				| BURGUNDY_OUTPUT_INTERN);

  		if (snd_pmac_burgundy_detect_headphone(chip))

  			reg |= imac ? (BURGUNDY_HP_LEFT | BURGUNDY_HP_RIGHT)
  				: (BURGUNDY_OUTPUT_LEFT
  					| BURGUNDY_OUTPUT_RIGHT);

  		else

  			reg |= imac ? (BURGUNDY_OUTPUT_LEFT
  					| BURGUNDY_OUTPUT_RIGHT)
  				: (BURGUNDY_OUTPUT_INTERN);

  		if (do_notify && reg == oreg)
  			return;

  		snd_pmac_burgundy_wcb(chip,
  				MASK_ADDR_BURGUNDY_MORE_OUTPUTENABLES, reg);

  		if (do_notify) {
  			snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
  				       &chip->master_sw_ctl->id);
  			snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
  				       &chip->speaker_sw_ctl->id);
  			snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
  				       &chip->hp_detect_ctl->id);
  		}
  	}
  }
  #endif /* PMAC_SUPPORT_AUTOMUTE */
  
  
  /*
   * initialize burgundy
   */

  int __devinit snd_pmac_burgundy_init(struct snd_pmac *chip)

  {

  	int imac = of_machine_is_compatible("iMac");

  	int i, err;
  
  	/* Checks to see the chip is alive and kicking */
  	if ((in_le32(&chip->awacs->codec_ctrl) & MASK_ERRCODE) == 0xf0000) {
  		printk(KERN_WARNING "pmac burgundy: disabled by MacOS :-(
  ");
  		return 1;
  	}

  	snd_pmac_burgundy_wcw(chip, MASK_ADDR_BURGUNDY_OUTPUTENABLES,

  			   DEF_BURGUNDY_OUTPUTENABLES);
  	snd_pmac_burgundy_wcb(chip, MASK_ADDR_BURGUNDY_MORE_OUTPUTENABLES,
  			   DEF_BURGUNDY_MORE_OUTPUTENABLES);
  	snd_pmac_burgundy_wcw(chip, MASK_ADDR_BURGUNDY_OUTPUTSELECTS,
  			   DEF_BURGUNDY_OUTPUTSELECTS);
  
  	snd_pmac_burgundy_wcb(chip, MASK_ADDR_BURGUNDY_INPSEL21,
  			   DEF_BURGUNDY_INPSEL21);
  	snd_pmac_burgundy_wcb(chip, MASK_ADDR_BURGUNDY_INPSEL3,

  			   imac ? DEF_BURGUNDY_INPSEL3_IMAC
  			   : DEF_BURGUNDY_INPSEL3_PMAC);

  	snd_pmac_burgundy_wcb(chip, MASK_ADDR_BURGUNDY_GAINCD,
  			   DEF_BURGUNDY_GAINCD);
  	snd_pmac_burgundy_wcb(chip, MASK_ADDR_BURGUNDY_GAINLINE,
  			   DEF_BURGUNDY_GAINLINE);
  	snd_pmac_burgundy_wcb(chip, MASK_ADDR_BURGUNDY_GAINMIC,
  			   DEF_BURGUNDY_GAINMIC);
  	snd_pmac_burgundy_wcb(chip, MASK_ADDR_BURGUNDY_GAINMODEM,
  			   DEF_BURGUNDY_GAINMODEM);
  
  	snd_pmac_burgundy_wcb(chip, MASK_ADDR_BURGUNDY_ATTENSPEAKER,
  			   DEF_BURGUNDY_ATTENSPEAKER);
  	snd_pmac_burgundy_wcb(chip, MASK_ADDR_BURGUNDY_ATTENLINEOUT,
  			   DEF_BURGUNDY_ATTENLINEOUT);
  	snd_pmac_burgundy_wcb(chip, MASK_ADDR_BURGUNDY_ATTENHP,
  			   DEF_BURGUNDY_ATTENHP);
  
  	snd_pmac_burgundy_wcw(chip, MASK_ADDR_BURGUNDY_MASTER_VOLUME,
  			   DEF_BURGUNDY_MASTER_VOLUME);
  	snd_pmac_burgundy_wcw(chip, MASK_ADDR_BURGUNDY_VOLCD,
  			   DEF_BURGUNDY_VOLCD);
  	snd_pmac_burgundy_wcw(chip, MASK_ADDR_BURGUNDY_VOLLINE,
  			   DEF_BURGUNDY_VOLLINE);
  	snd_pmac_burgundy_wcw(chip, MASK_ADDR_BURGUNDY_VOLMIC,
  			   DEF_BURGUNDY_VOLMIC);

  	if (chip->hp_stat_mask == 0) {

  		/* set headphone-jack detection bit */

  		if (imac)
  			chip->hp_stat_mask = BURGUNDY_HPDETECT_IMAC_UPPER
  				| BURGUNDY_HPDETECT_IMAC_LOWER
  				| BURGUNDY_HPDETECT_IMAC_SIDE;
  		else
  			chip->hp_stat_mask = BURGUNDY_HPDETECT_PMAC_BACK;
  	}

  	/*
  	 * build burgundy mixers
  	 */
  	strcpy(chip->card->mixername, "PowerMac Burgundy");
  
  	for (i = 0; i < ARRAY_SIZE(snd_pmac_burgundy_mixers); i++) {

  		err = snd_ctl_add(chip->card,
  		    snd_ctl_new1(&snd_pmac_burgundy_mixers[i], chip));
  		if (err < 0)
  			return err;
  	}
  	for (i = 0; i < (imac ? ARRAY_SIZE(snd_pmac_burgundy_mixers_imac)
  			: ARRAY_SIZE(snd_pmac_burgundy_mixers_pmac)); i++) {
  		err = snd_ctl_add(chip->card,
  		    snd_ctl_new1(imac ? &snd_pmac_burgundy_mixers_imac[i]
  		    : &snd_pmac_burgundy_mixers_pmac[i], chip));
  		if (err < 0)

  			return err;
  	}

  	chip->master_sw_ctl = snd_ctl_new1(imac
  			? &snd_pmac_burgundy_master_sw_imac
  			: &snd_pmac_burgundy_master_sw_pmac, chip);

  	err = snd_ctl_add(chip->card, chip->master_sw_ctl);
  	if (err < 0)

  		return err;

  	chip->master_sw_ctl = snd_ctl_new1(imac
  			? &snd_pmac_burgundy_line_sw_imac
  			: &snd_pmac_burgundy_line_sw_pmac, chip);
  	err = snd_ctl_add(chip->card, chip->master_sw_ctl);
  	if (err < 0)
  		return err;
  	if (imac) {
  		chip->master_sw_ctl = snd_ctl_new1(
  				&snd_pmac_burgundy_hp_sw_imac, chip);
  		err = snd_ctl_add(chip->card, chip->master_sw_ctl);
  		if (err < 0)
  			return err;
  	}
  	chip->speaker_sw_ctl = snd_ctl_new1(imac
  			? &snd_pmac_burgundy_speaker_sw_imac
  			: &snd_pmac_burgundy_speaker_sw_pmac, chip);

  	err = snd_ctl_add(chip->card, chip->speaker_sw_ctl);
  	if (err < 0)

  		return err;
  #ifdef PMAC_SUPPORT_AUTOMUTE

  	err = snd_pmac_add_automute(chip);
  	if (err < 0)

  		return err;
  
  	chip->detect_headphone = snd_pmac_burgundy_detect_headphone;
  	chip->update_automute = snd_pmac_burgundy_update_automute;
  	snd_pmac_burgundy_update_automute(chip, 0); /* update the status only */
  #endif
  
  	return 0;
  }