Quelle  burgundy.c   Sprache: C

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * PMac Burgundy lowlevel functions
 *
 * Copyright (c) by Takashi Iwai <tiwai@suse.de>
 * code based on dmasound.c.
 */

#include <linux/io.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/of.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\n");
}

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\n");
 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\n");
}

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 const struct snd_kcontrol_new snd_pmac_burgundy_mixers[] = {
 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),
 */
   MASK_ADDR_BURGUNDY_HOSTIFEH, 0x01, 0, 0)
};
static const struct snd_kcontrol_new snd_pmac_burgundy_mixers_imac[] = {
 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 const struct snd_kcontrol_new snd_pmac_burgundy_mixers_pmac[] = {
 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 const struct snd_kcontrol_new snd_pmac_burgundy_master_sw_imac =
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 const struct snd_kcontrol_new snd_pmac_burgundy_master_sw_pmac =
BURGUNDY_SWITCH_B("Master Playback Switch", 0,
 MASK_ADDR_BURGUNDY_MORE_OUTPUTENABLES,
 BURGUNDY_OUTPUT_INTERN
 | BURGUNDY_OUTPUT_LEFT, BURGUNDY_OUTPUT_RIGHT, 1);
static const struct snd_kcontrol_new snd_pmac_burgundy_speaker_sw_imac =
BURGUNDY_SWITCH_B("Speaker Playback Switch", 0,
 MASK_ADDR_BURGUNDY_MORE_OUTPUTENABLES,
 BURGUNDY_OUTPUT_LEFT, BURGUNDY_OUTPUT_RIGHT, 1);
static const struct snd_kcontrol_new snd_pmac_burgundy_speaker_sw_pmac =
BURGUNDY_SWITCH_B("Speaker Playback Switch", 0,
 MASK_ADDR_BURGUNDY_MORE_OUTPUTENABLES,
 BURGUNDY_OUTPUT_INTERN, 0, 0);
static const struct snd_kcontrol_new snd_pmac_burgundy_line_sw_imac =
BURGUNDY_SWITCH_B("Line out Playback Switch", 0,
 MASK_ADDR_BURGUNDY_MORE_OUTPUTENABLES,
 BURGUNDY_LINEOUT_LEFT, BURGUNDY_LINEOUT_RIGHT, 1);
static const struct snd_kcontrol_new snd_pmac_burgundy_line_sw_pmac =
BURGUNDY_SWITCH_B("Line out Playback Switch", 0,
 MASK_ADDR_BURGUNDY_MORE_OUTPUTENABLES,
 BURGUNDY_OUTPUT_LEFT, BURGUNDY_OUTPUT_RIGHT, 1);
static const struct snd_kcontrol_new snd_pmac_burgundy_hp_sw_imac =
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 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 :-(\n");
  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
 */
 strscpy(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;
}