diff --git a/src/kernel/linux/v4.14/sound/ppc/Kconfig b/src/kernel/linux/v4.14/sound/ppc/Kconfig
new file mode 100644
index 0000000..0519c60
--- /dev/null
+++ b/src/kernel/linux/v4.14/sound/ppc/Kconfig
@@ -0,0 +1,52 @@
+# ALSA PowerMac drivers
+
+menuconfig SND_PPC
+	bool "PowerPC sound devices"
+	depends on PPC
+	default y
+	help
+	  Support for sound devices specific to PowerPC architectures.
+
+if SND_PPC
+
+config SND_POWERMAC
+	tristate "PowerMac (AWACS, DACA, Burgundy, Tumbler, Keywest)"
+	depends on I2C && INPUT && PPC_PMAC
+	select SND_PCM
+	select SND_VMASTER
+	help
+	  Say Y here to include support for the integrated sound device.
+
+	  To compile this driver as a module, choose M here: the module
+	  will be called snd-powermac.
+
+config SND_POWERMAC_AUTO_DRC
+	bool "Toggle DRC automatically at headphone/line plug-in"
+	depends on SND_POWERMAC
+	default y
+	help
+	  Say Y here to enable the automatic toggle of DRC (dynamic
+	  range compression) on Tumbler/Snapper.
+	  If this feature is enabled, DRC is turned off when the
+	  headphone/line jack is plugged, and turned on when unplugged.
+
+	  Note that you can turn on/off DRC manually even without this
+	  option.
+
+config SND_PS3
+	tristate "PS3 Audio support"
+	depends on PS3_PS3AV
+	select SND_PCM
+	default m
+	help
+	  Say Y here to include support for audio on the PS3
+
+	  To compile this driver as a module, choose M here: the module
+	  will be called snd_ps3.
+
+config SND_PS3_DEFAULT_START_DELAY
+	int "Startup delay time in ms"
+	depends on SND_PS3
+	default "2000"
+
+endif	# SND_PPC
diff --git a/src/kernel/linux/v4.14/sound/ppc/Makefile b/src/kernel/linux/v4.14/sound/ppc/Makefile
new file mode 100644
index 0000000..679c45a
--- /dev/null
+++ b/src/kernel/linux/v4.14/sound/ppc/Makefile
@@ -0,0 +1,10 @@
+#
+# Makefile for ALSA
+# Copyright (c) 2001 by Jaroslav Kysela <perex@perex.cz>
+#
+
+snd-powermac-objs := powermac.o pmac.o awacs.o burgundy.o daca.o tumbler.o keywest.o beep.o
+
+# Toplevel Module Dependency
+obj-$(CONFIG_SND_POWERMAC)	+= snd-powermac.o
+obj-$(CONFIG_SND_PS3)		+= snd_ps3.o
diff --git a/src/kernel/linux/v4.14/sound/ppc/awacs.c b/src/kernel/linux/v4.14/sound/ppc/awacs.c
new file mode 100644
index 0000000..d1e4ef1
--- /dev/null
+++ b/src/kernel/linux/v4.14/sound/ppc/awacs.c
@@ -0,0 +1,1147 @@
+/*
+ * PMac AWACS 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 <linux/io.h>
+#include <asm/nvram.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <sound/core.h>
+#include "pmac.h"
+
+
+#ifdef CONFIG_ADB_CUDA
+#define PMAC_AMP_AVAIL
+#endif
+
+#ifdef PMAC_AMP_AVAIL
+struct awacs_amp {
+	unsigned char amp_master;
+	unsigned char amp_vol[2][2];
+	unsigned char amp_tone[2];
+};
+
+#define CHECK_CUDA_AMP() (sys_ctrler == SYS_CTRLER_CUDA)
+
+#endif /* PMAC_AMP_AVAIL */
+
+
+static void snd_pmac_screamer_wait(struct snd_pmac *chip)
+{
+	long timeout = 2000;
+	while (!(in_le32(&chip->awacs->codec_stat) & MASK_VALID)) {
+		mdelay(1);
+		if (! --timeout) {
+			snd_printd("snd_pmac_screamer_wait timeout\n");
+			break;
+		}
+	}
+}
+
+/*
+ * write AWACS register
+ */
+static void
+snd_pmac_awacs_write(struct snd_pmac *chip, int val)
+{
+	long timeout = 5000000;
+
+	if (chip->model == PMAC_SCREAMER)
+		snd_pmac_screamer_wait(chip);
+	out_le32(&chip->awacs->codec_ctrl, val | (chip->subframe << 22));
+	while (in_le32(&chip->awacs->codec_ctrl) & MASK_NEWECMD) {
+		if (! --timeout) {
+			snd_printd("snd_pmac_awacs_write timeout\n");
+			break;
+		}
+	}
+}
+
+static void
+snd_pmac_awacs_write_reg(struct snd_pmac *chip, int reg, int val)
+{
+	snd_pmac_awacs_write(chip, val | (reg << 12));
+	chip->awacs_reg[reg] = val;
+}
+
+static void
+snd_pmac_awacs_write_noreg(struct snd_pmac *chip, int reg, int val)
+{
+	snd_pmac_awacs_write(chip, val | (reg << 12));
+}
+
+#ifdef CONFIG_PM
+/* Recalibrate chip */
+static void screamer_recalibrate(struct snd_pmac *chip)
+{
+	if (chip->model != PMAC_SCREAMER)
+		return;
+
+	/* Sorry for the horrible delays... I hope to get that improved
+	 * by making the whole PM process asynchronous in a future version
+	 */
+	snd_pmac_awacs_write_noreg(chip, 1, chip->awacs_reg[1]);
+	if (chip->manufacturer == 0x1)
+		/* delay for broken crystal part */
+		msleep(750);
+	snd_pmac_awacs_write_noreg(chip, 1,
+				   chip->awacs_reg[1] | MASK_RECALIBRATE |
+				   MASK_CMUTE | MASK_AMUTE);
+	snd_pmac_awacs_write_noreg(chip, 1, chip->awacs_reg[1]);
+	snd_pmac_awacs_write_noreg(chip, 6, chip->awacs_reg[6]);
+}
+
+#else
+#define screamer_recalibrate(chip) /* NOP */
+#endif
+
+
+/*
+ * additional callback to set the pcm format
+ */
+static void snd_pmac_awacs_set_format(struct snd_pmac *chip)
+{
+	chip->awacs_reg[1] &= ~MASK_SAMPLERATE;
+	chip->awacs_reg[1] |= chip->rate_index << 3;
+	snd_pmac_awacs_write_reg(chip, 1, chip->awacs_reg[1]);
+}
+
+
+/*
+ * AWACS volume callbacks
+ */
+/*
+ * volumes: 0-15 stereo
+ */
+static int snd_pmac_awacs_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 = 15;
+	return 0;
+}
+
+static int snd_pmac_awacs_get_volume(struct snd_kcontrol *kcontrol,
+				     struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
+	int reg = kcontrol->private_value & 0xff;
+	int lshift = (kcontrol->private_value >> 8) & 0xff;
+	int inverted = (kcontrol->private_value >> 16) & 1;
+	unsigned long flags;
+	int vol[2];
+
+	spin_lock_irqsave(&chip->reg_lock, flags);
+	vol[0] = (chip->awacs_reg[reg] >> lshift) & 0xf;
+	vol[1] = chip->awacs_reg[reg] & 0xf;
+	spin_unlock_irqrestore(&chip->reg_lock, flags);
+	if (inverted) {
+		vol[0] = 0x0f - vol[0];
+		vol[1] = 0x0f - vol[1];
+	}
+	ucontrol->value.integer.value[0] = vol[0];
+	ucontrol->value.integer.value[1] = vol[1];
+	return 0;
+}
+
+static int snd_pmac_awacs_put_volume(struct snd_kcontrol *kcontrol,
+				     struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
+	int reg = kcontrol->private_value & 0xff;
+	int lshift = (kcontrol->private_value >> 8) & 0xff;
+	int inverted = (kcontrol->private_value >> 16) & 1;
+	int val, oldval;
+	unsigned long flags;
+	unsigned int vol[2];
+
+	vol[0] = ucontrol->value.integer.value[0];
+	vol[1] = ucontrol->value.integer.value[1];
+	if (vol[0] > 0x0f || vol[1] > 0x0f)
+		return -EINVAL;
+	if (inverted) {
+		vol[0] = 0x0f - vol[0];
+		vol[1] = 0x0f - vol[1];
+	}
+	vol[0] &= 0x0f;
+	vol[1] &= 0x0f;
+	spin_lock_irqsave(&chip->reg_lock, flags);
+	oldval = chip->awacs_reg[reg];
+	val = oldval & ~(0xf | (0xf << lshift));
+	val |= vol[0] << lshift;
+	val |= vol[1];
+	if (oldval != val)
+		snd_pmac_awacs_write_reg(chip, reg, val);
+	spin_unlock_irqrestore(&chip->reg_lock, flags);
+	return oldval != reg;
+}
+
+
+#define AWACS_VOLUME(xname, xreg, xshift, xinverted) \
+{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = 0, \
+  .info = snd_pmac_awacs_info_volume, \
+  .get = snd_pmac_awacs_get_volume, \
+  .put = snd_pmac_awacs_put_volume, \
+  .private_value = (xreg) | ((xshift) << 8) | ((xinverted) << 16) }
+
+/*
+ * mute master/ogain for AWACS: mono
+ */
+static int snd_pmac_awacs_get_switch(struct snd_kcontrol *kcontrol,
+				     struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
+	int reg = kcontrol->private_value & 0xff;
+	int shift = (kcontrol->private_value >> 8) & 0xff;
+	int invert = (kcontrol->private_value >> 16) & 1;
+	int val;
+	unsigned long flags;
+
+	spin_lock_irqsave(&chip->reg_lock, flags);
+	val = (chip->awacs_reg[reg] >> shift) & 1;
+	spin_unlock_irqrestore(&chip->reg_lock, flags);
+	if (invert)
+		val = 1 - val;
+	ucontrol->value.integer.value[0] = val;
+	return 0;
+}
+
+static int snd_pmac_awacs_put_switch(struct snd_kcontrol *kcontrol,
+				     struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
+	int reg = kcontrol->private_value & 0xff;
+	int shift = (kcontrol->private_value >> 8) & 0xff;
+	int invert = (kcontrol->private_value >> 16) & 1;
+	int mask = 1 << shift;
+	int val, changed;
+	unsigned long flags;
+
+	spin_lock_irqsave(&chip->reg_lock, flags);
+	val = chip->awacs_reg[reg] & ~mask;
+	if (ucontrol->value.integer.value[0] != invert)
+		val |= mask;
+	changed = chip->awacs_reg[reg] != val;
+	if (changed)
+		snd_pmac_awacs_write_reg(chip, reg, val);
+	spin_unlock_irqrestore(&chip->reg_lock, flags);
+	return changed;
+}
+
+#define AWACS_SWITCH(xname, xreg, xshift, xinvert) \
+{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = 0, \
+  .info = snd_pmac_boolean_mono_info, \
+  .get = snd_pmac_awacs_get_switch, \
+  .put = snd_pmac_awacs_put_switch, \
+  .private_value = (xreg) | ((xshift) << 8) | ((xinvert) << 16) }
+
+
+#ifdef PMAC_AMP_AVAIL
+/*
+ * controls for perch/whisper extension cards, e.g. G3 desktop
+ *
+ * TDA7433 connected via i2c address 0x45 (= 0x8a),
+ * accessed through cuda
+ */
+static void awacs_set_cuda(int reg, int val)
+{
+	struct adb_request req;
+	cuda_request(&req, NULL, 5, CUDA_PACKET, CUDA_GET_SET_IIC, 0x8a,
+			reg, val);
+	while (! req.complete)
+		cuda_poll();
+}
+
+/*
+ * level = 0 - 14, 7 = 0 dB
+ */
+static void awacs_amp_set_tone(struct awacs_amp *amp, int bass, int treble)
+{
+	amp->amp_tone[0] = bass;
+	amp->amp_tone[1] = treble;
+	if (bass > 7)
+		bass = (14 - bass) + 8;
+	if (treble > 7)
+		treble = (14 - treble) + 8;
+	awacs_set_cuda(2, (bass << 4) | treble);
+}
+
+/*
+ * vol = 0 - 31 (attenuation), 32 = mute bit, stereo
+ */
+static int awacs_amp_set_vol(struct awacs_amp *amp, int index,
+			     int lvol, int rvol, int do_check)
+{
+	if (do_check && amp->amp_vol[index][0] == lvol &&
+			amp->amp_vol[index][1] == rvol)
+		return 0;
+	awacs_set_cuda(3 + index, lvol);
+	awacs_set_cuda(5 + index, rvol);
+	amp->amp_vol[index][0] = lvol;
+	amp->amp_vol[index][1] = rvol;
+	return 1;
+}
+
+/*
+ * 0 = -79 dB, 79 = 0 dB, 99 = +20 dB
+ */
+static void awacs_amp_set_master(struct awacs_amp *amp, int vol)
+{
+	amp->amp_master = vol;
+	if (vol <= 79)
+		vol = 32 + (79 - vol);
+	else
+		vol = 32 - (vol - 79);
+	awacs_set_cuda(1, vol);
+}
+
+static void awacs_amp_free(struct snd_pmac *chip)
+{
+	struct awacs_amp *amp = chip->mixer_data;
+	if (!amp)
+		return;
+	kfree(amp);
+	chip->mixer_data = NULL;
+	chip->mixer_free = NULL;
+}
+
+
+/*
+ * mixer controls
+ */
+static int snd_pmac_awacs_info_volume_amp(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 = 31;
+	return 0;
+}
+
+static int snd_pmac_awacs_get_volume_amp(struct snd_kcontrol *kcontrol,
+					 struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
+	int index = kcontrol->private_value;
+	struct awacs_amp *amp = chip->mixer_data;
+
+	ucontrol->value.integer.value[0] = 31 - (amp->amp_vol[index][0] & 31);
+	ucontrol->value.integer.value[1] = 31 - (amp->amp_vol[index][1] & 31);
+	return 0;
+}
+
+static int snd_pmac_awacs_put_volume_amp(struct snd_kcontrol *kcontrol,
+					 struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
+	int index = kcontrol->private_value;
+	int vol[2];
+	struct awacs_amp *amp = chip->mixer_data;
+
+	vol[0] = (31 - (ucontrol->value.integer.value[0] & 31))
+		| (amp->amp_vol[index][0] & 32);
+	vol[1] = (31 - (ucontrol->value.integer.value[1] & 31))
+		| (amp->amp_vol[index][1] & 32);
+	return awacs_amp_set_vol(amp, index, vol[0], vol[1], 1);
+}
+
+static int snd_pmac_awacs_get_switch_amp(struct snd_kcontrol *kcontrol,
+					 struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
+	int index = kcontrol->private_value;
+	struct awacs_amp *amp = chip->mixer_data;
+
+	ucontrol->value.integer.value[0] = (amp->amp_vol[index][0] & 32)
+					? 0 : 1;
+	ucontrol->value.integer.value[1] = (amp->amp_vol[index][1] & 32)
+					? 0 : 1;
+	return 0;
+}
+
+static int snd_pmac_awacs_put_switch_amp(struct snd_kcontrol *kcontrol,
+					 struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
+	int index = kcontrol->private_value;
+	int vol[2];
+	struct awacs_amp *amp = chip->mixer_data;
+
+	vol[0] = (ucontrol->value.integer.value[0] ? 0 : 32)
+		| (amp->amp_vol[index][0] & 31);
+	vol[1] = (ucontrol->value.integer.value[1] ? 0 : 32)
+		| (amp->amp_vol[index][1] & 31);
+	return awacs_amp_set_vol(amp, index, vol[0], vol[1], 1);
+}
+
+static int snd_pmac_awacs_info_tone_amp(struct snd_kcontrol *kcontrol,
+					struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->count = 1;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = 14;
+	return 0;
+}
+
+static int snd_pmac_awacs_get_tone_amp(struct snd_kcontrol *kcontrol,
+				       struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
+	int index = kcontrol->private_value;
+	struct awacs_amp *amp = chip->mixer_data;
+
+	ucontrol->value.integer.value[0] = amp->amp_tone[index];
+	return 0;
+}
+
+static int snd_pmac_awacs_put_tone_amp(struct snd_kcontrol *kcontrol,
+				       struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
+	int index = kcontrol->private_value;
+	struct awacs_amp *amp = chip->mixer_data;
+	unsigned int val;
+
+	val = ucontrol->value.integer.value[0];
+	if (val > 14)
+		return -EINVAL;
+	if (val != amp->amp_tone[index]) {
+		amp->amp_tone[index] = val;
+		awacs_amp_set_tone(amp, amp->amp_tone[0], amp->amp_tone[1]);
+		return 1;
+	}
+	return 0;
+}
+
+static int snd_pmac_awacs_info_master_amp(struct snd_kcontrol *kcontrol,
+					  struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->count = 1;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = 99;
+	return 0;
+}
+
+static int snd_pmac_awacs_get_master_amp(struct snd_kcontrol *kcontrol,
+					 struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
+	struct awacs_amp *amp = chip->mixer_data;
+
+	ucontrol->value.integer.value[0] = amp->amp_master;
+	return 0;
+}
+
+static int snd_pmac_awacs_put_master_amp(struct snd_kcontrol *kcontrol,
+					 struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
+	struct awacs_amp *amp = chip->mixer_data;
+	unsigned int val;
+
+	val = ucontrol->value.integer.value[0];
+	if (val > 99)
+		return -EINVAL;
+	if (val != amp->amp_master) {
+		amp->amp_master = val;
+		awacs_amp_set_master(amp, amp->amp_master);
+		return 1;
+	}
+	return 0;
+}
+
+#define AMP_CH_SPK	0
+#define AMP_CH_HD	1
+
+static struct snd_kcontrol_new snd_pmac_awacs_amp_vol[] = {
+	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+	  .name = "Speaker Playback Volume",
+	  .info = snd_pmac_awacs_info_volume_amp,
+	  .get = snd_pmac_awacs_get_volume_amp,
+	  .put = snd_pmac_awacs_put_volume_amp,
+	  .private_value = AMP_CH_SPK,
+	},
+	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+	  .name = "Headphone Playback Volume",
+	  .info = snd_pmac_awacs_info_volume_amp,
+	  .get = snd_pmac_awacs_get_volume_amp,
+	  .put = snd_pmac_awacs_put_volume_amp,
+	  .private_value = AMP_CH_HD,
+	},
+	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+	  .name = "Tone Control - Bass",
+	  .info = snd_pmac_awacs_info_tone_amp,
+	  .get = snd_pmac_awacs_get_tone_amp,
+	  .put = snd_pmac_awacs_put_tone_amp,
+	  .private_value = 0,
+	},
+	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+	  .name = "Tone Control - Treble",
+	  .info = snd_pmac_awacs_info_tone_amp,
+	  .get = snd_pmac_awacs_get_tone_amp,
+	  .put = snd_pmac_awacs_put_tone_amp,
+	  .private_value = 1,
+	},
+	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+	  .name = "Amp Master Playback Volume",
+	  .info = snd_pmac_awacs_info_master_amp,
+	  .get = snd_pmac_awacs_get_master_amp,
+	  .put = snd_pmac_awacs_put_master_amp,
+	},
+};
+
+static const struct snd_kcontrol_new snd_pmac_awacs_amp_hp_sw = {
+	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+	.name = "Headphone Playback Switch",
+	.info = snd_pmac_boolean_stereo_info,
+	.get = snd_pmac_awacs_get_switch_amp,
+	.put = snd_pmac_awacs_put_switch_amp,
+	.private_value = AMP_CH_HD,
+};
+
+static const struct snd_kcontrol_new snd_pmac_awacs_amp_spk_sw = {
+	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+	.name = "Speaker Playback Switch",
+	.info = snd_pmac_boolean_stereo_info,
+	.get = snd_pmac_awacs_get_switch_amp,
+	.put = snd_pmac_awacs_put_switch_amp,
+	.private_value = AMP_CH_SPK,
+};
+
+#endif /* PMAC_AMP_AVAIL */
+
+
+/*
+ * mic boost for screamer
+ */
+static int snd_pmac_screamer_mic_boost_info(struct snd_kcontrol *kcontrol,
+					    struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->count = 1;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = 3;
+	return 0;
+}
+
+static int snd_pmac_screamer_mic_boost_get(struct snd_kcontrol *kcontrol,
+					   struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
+	int val = 0;
+	unsigned long flags;
+
+	spin_lock_irqsave(&chip->reg_lock, flags);
+	if (chip->awacs_reg[6] & MASK_MIC_BOOST)
+		val |= 2;
+	if (chip->awacs_reg[0] & MASK_GAINLINE)
+		val |= 1;
+	spin_unlock_irqrestore(&chip->reg_lock, flags);
+	ucontrol->value.integer.value[0] = val;
+	return 0;
+}
+
+static int snd_pmac_screamer_mic_boost_put(struct snd_kcontrol *kcontrol,
+					   struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
+	int changed = 0;
+	int val0, val6;
+	unsigned long flags;
+
+	spin_lock_irqsave(&chip->reg_lock, flags);
+	val0 = chip->awacs_reg[0] & ~MASK_GAINLINE;
+	val6 = chip->awacs_reg[6] & ~MASK_MIC_BOOST;
+	if (ucontrol->value.integer.value[0] & 1)
+		val0 |= MASK_GAINLINE;
+	if (ucontrol->value.integer.value[0] & 2)
+		val6 |= MASK_MIC_BOOST;
+	if (val0 != chip->awacs_reg[0]) {
+		snd_pmac_awacs_write_reg(chip, 0, val0);
+		changed = 1;
+	}
+	if (val6 != chip->awacs_reg[6]) {
+		snd_pmac_awacs_write_reg(chip, 6, val6);
+		changed = 1;
+	}
+	spin_unlock_irqrestore(&chip->reg_lock, flags);
+	return changed;
+}
+
+/*
+ * lists of mixer elements
+ */
+static struct snd_kcontrol_new snd_pmac_awacs_mixers[] = {
+	AWACS_SWITCH("Master Capture Switch", 1, SHIFT_LOOPTHRU, 0),
+	AWACS_VOLUME("Master Capture Volume", 0, 4, 0),
+/*	AWACS_SWITCH("Unknown Playback Switch", 6, SHIFT_PAROUT0, 0), */
+};
+
+static struct snd_kcontrol_new snd_pmac_screamer_mixers_beige[] = {
+	AWACS_VOLUME("Master Playback Volume", 2, 6, 1),
+	AWACS_VOLUME("Play-through Playback Volume", 5, 6, 1),
+	AWACS_SWITCH("Line Capture Switch", 0, SHIFT_MUX_MIC, 0),
+	AWACS_SWITCH("CD Capture Switch", 0, SHIFT_MUX_LINE, 0),
+};
+
+static struct snd_kcontrol_new snd_pmac_screamer_mixers_lo[] = {
+	AWACS_VOLUME("Line out Playback Volume", 2, 6, 1),
+};
+
+static struct snd_kcontrol_new snd_pmac_screamer_mixers_imac[] = {
+	AWACS_VOLUME("Play-through Playback Volume", 5, 6, 1),
+	AWACS_SWITCH("CD Capture Switch", 0, SHIFT_MUX_CD, 0),
+};
+
+static struct snd_kcontrol_new snd_pmac_screamer_mixers_g4agp[] = {
+	AWACS_VOLUME("Line out Playback Volume", 2, 6, 1),
+	AWACS_VOLUME("Master Playback Volume", 5, 6, 1),
+	AWACS_SWITCH("CD Capture Switch", 0, SHIFT_MUX_CD, 0),
+	AWACS_SWITCH("Line Capture Switch", 0, SHIFT_MUX_MIC, 0),
+};
+
+static struct snd_kcontrol_new snd_pmac_awacs_mixers_pmac7500[] = {
+	AWACS_VOLUME("Line out Playback Volume", 2, 6, 1),
+	AWACS_SWITCH("CD Capture Switch", 0, SHIFT_MUX_CD, 0),
+	AWACS_SWITCH("Line Capture Switch", 0, SHIFT_MUX_MIC, 0),
+};
+
+static struct snd_kcontrol_new snd_pmac_awacs_mixers_pmac5500[] = {
+	AWACS_VOLUME("Headphone Playback Volume", 2, 6, 1),
+};
+
+static struct snd_kcontrol_new snd_pmac_awacs_mixers_pmac[] = {
+	AWACS_VOLUME("Master Playback Volume", 2, 6, 1),
+	AWACS_SWITCH("CD Capture Switch", 0, SHIFT_MUX_CD, 0),
+};
+
+/* FIXME: is this correct order?
+ * screamer (powerbook G3 pismo) seems to have different bits...
+ */
+static struct snd_kcontrol_new snd_pmac_awacs_mixers2[] = {
+	AWACS_SWITCH("Line Capture Switch", 0, SHIFT_MUX_LINE, 0),
+	AWACS_SWITCH("Mic Capture Switch", 0, SHIFT_MUX_MIC, 0),
+};
+
+static struct snd_kcontrol_new snd_pmac_screamer_mixers2[] = {
+	AWACS_SWITCH("Line Capture Switch", 0, SHIFT_MUX_MIC, 0),
+	AWACS_SWITCH("Mic Capture Switch", 0, SHIFT_MUX_LINE, 0),
+};
+
+static struct snd_kcontrol_new snd_pmac_awacs_mixers2_pmac5500[] = {
+	AWACS_SWITCH("CD Capture Switch", 0, SHIFT_MUX_CD, 0),
+};
+
+static struct snd_kcontrol_new snd_pmac_awacs_master_sw =
+AWACS_SWITCH("Master Playback Switch", 1, SHIFT_HDMUTE, 1);
+
+static struct snd_kcontrol_new snd_pmac_awacs_master_sw_imac =
+AWACS_SWITCH("Line out Playback Switch", 1, SHIFT_HDMUTE, 1);
+
+static struct snd_kcontrol_new snd_pmac_awacs_master_sw_pmac5500 =
+AWACS_SWITCH("Headphone Playback Switch", 1, SHIFT_HDMUTE, 1);
+
+static struct snd_kcontrol_new snd_pmac_awacs_mic_boost[] = {
+	AWACS_SWITCH("Mic Boost Capture Switch", 0, SHIFT_GAINLINE, 0),
+};
+
+static struct snd_kcontrol_new snd_pmac_screamer_mic_boost[] = {
+	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+	  .name = "Mic Boost Capture Volume",
+	  .info = snd_pmac_screamer_mic_boost_info,
+	  .get = snd_pmac_screamer_mic_boost_get,
+	  .put = snd_pmac_screamer_mic_boost_put,
+	},
+};
+
+static struct snd_kcontrol_new snd_pmac_awacs_mic_boost_pmac7500[] =
+{
+	AWACS_SWITCH("Line Boost Capture Switch", 0, SHIFT_GAINLINE, 0),
+};
+
+static struct snd_kcontrol_new snd_pmac_screamer_mic_boost_beige[] =
+{
+	AWACS_SWITCH("Line Boost Capture Switch", 0, SHIFT_GAINLINE, 0),
+	AWACS_SWITCH("CD Boost Capture Switch", 6, SHIFT_MIC_BOOST, 0),
+};
+
+static struct snd_kcontrol_new snd_pmac_screamer_mic_boost_imac[] =
+{
+	AWACS_SWITCH("Line Boost Capture Switch", 0, SHIFT_GAINLINE, 0),
+	AWACS_SWITCH("Mic Boost Capture Switch", 6, SHIFT_MIC_BOOST, 0),
+};
+
+static struct snd_kcontrol_new snd_pmac_awacs_speaker_vol[] = {
+	AWACS_VOLUME("Speaker Playback Volume", 4, 6, 1),
+};
+
+static struct snd_kcontrol_new snd_pmac_awacs_speaker_sw =
+AWACS_SWITCH("Speaker Playback Switch", 1, SHIFT_SPKMUTE, 1);
+
+static struct snd_kcontrol_new snd_pmac_awacs_speaker_sw_imac1 =
+AWACS_SWITCH("Speaker Playback Switch", 1, SHIFT_PAROUT1, 1);
+
+static struct snd_kcontrol_new snd_pmac_awacs_speaker_sw_imac2 =
+AWACS_SWITCH("Speaker Playback Switch", 1, SHIFT_PAROUT1, 0);
+
+
+/*
+ * add new mixer elements to the card
+ */
+static int build_mixers(struct snd_pmac *chip, int nums,
+			struct snd_kcontrol_new *mixers)
+{
+	int i, err;
+
+	for (i = 0; i < nums; i++) {
+		err = snd_ctl_add(chip->card, snd_ctl_new1(&mixers[i], chip));
+		if (err < 0)
+			return err;
+	}
+	return 0;
+}
+
+
+/*
+ * restore all registers
+ */
+static void awacs_restore_all_regs(struct snd_pmac *chip)
+{
+	snd_pmac_awacs_write_noreg(chip, 0, chip->awacs_reg[0]);
+	snd_pmac_awacs_write_noreg(chip, 1, chip->awacs_reg[1]);
+	snd_pmac_awacs_write_noreg(chip, 2, chip->awacs_reg[2]);
+	snd_pmac_awacs_write_noreg(chip, 4, chip->awacs_reg[4]);
+	if (chip->model == PMAC_SCREAMER) {
+		snd_pmac_awacs_write_noreg(chip, 5, chip->awacs_reg[5]);
+		snd_pmac_awacs_write_noreg(chip, 6, chip->awacs_reg[6]);
+		snd_pmac_awacs_write_noreg(chip, 7, chip->awacs_reg[7]);
+	}
+}
+
+#ifdef CONFIG_PM
+static void snd_pmac_awacs_suspend(struct snd_pmac *chip)
+{
+	snd_pmac_awacs_write_noreg(chip, 1, (chip->awacs_reg[1]
+					     | MASK_AMUTE | MASK_CMUTE));
+}
+
+static void snd_pmac_awacs_resume(struct snd_pmac *chip)
+{
+	if (of_machine_is_compatible("PowerBook3,1")
+	    || of_machine_is_compatible("PowerBook3,2")) {
+		msleep(100);
+		snd_pmac_awacs_write_reg(chip, 1,
+			chip->awacs_reg[1] & ~MASK_PAROUT);
+		msleep(300);
+	}
+
+	awacs_restore_all_regs(chip);
+	if (chip->model == PMAC_SCREAMER) {
+		/* reset power bits in reg 6 */
+		mdelay(5);
+		snd_pmac_awacs_write_noreg(chip, 6, chip->awacs_reg[6]);
+	}
+	screamer_recalibrate(chip);
+#ifdef PMAC_AMP_AVAIL
+	if (chip->mixer_data) {
+		struct awacs_amp *amp = chip->mixer_data;
+		awacs_amp_set_vol(amp, 0,
+				  amp->amp_vol[0][0], amp->amp_vol[0][1], 0);
+		awacs_amp_set_vol(amp, 1,
+				  amp->amp_vol[1][0], amp->amp_vol[1][1], 0);
+		awacs_amp_set_tone(amp, amp->amp_tone[0], amp->amp_tone[1]);
+		awacs_amp_set_master(amp, amp->amp_master);
+	}
+#endif
+}
+#endif /* CONFIG_PM */
+
+#define IS_PM7500 (of_machine_is_compatible("AAPL,7500") \
+		|| of_machine_is_compatible("AAPL,8500") \
+		|| of_machine_is_compatible("AAPL,9500"))
+#define IS_PM5500 (of_machine_is_compatible("AAPL,e411"))
+#define IS_BEIGE (of_machine_is_compatible("AAPL,Gossamer"))
+#define IS_IMAC1 (of_machine_is_compatible("PowerMac2,1"))
+#define IS_IMAC2 (of_machine_is_compatible("PowerMac2,2") \
+		|| of_machine_is_compatible("PowerMac4,1"))
+#define IS_G4AGP (of_machine_is_compatible("PowerMac3,1"))
+#define IS_LOMBARD (of_machine_is_compatible("PowerBook1,1"))
+
+static int imac1, imac2;
+
+#ifdef PMAC_SUPPORT_AUTOMUTE
+/*
+ * auto-mute stuffs
+ */
+static int snd_pmac_awacs_detect_headphone(struct snd_pmac *chip)
+{
+	return (in_le32(&chip->awacs->codec_stat) & chip->hp_stat_mask) ? 1 : 0;
+}
+
+#ifdef PMAC_AMP_AVAIL
+static int toggle_amp_mute(struct awacs_amp *amp, int index, int mute)
+{
+	int vol[2];
+	vol[0] = amp->amp_vol[index][0] & 31;
+	vol[1] = amp->amp_vol[index][1] & 31;
+	if (mute) {
+		vol[0] |= 32;
+		vol[1] |= 32;
+	}
+	return awacs_amp_set_vol(amp, index, vol[0], vol[1], 1);
+}
+#endif
+
+static void snd_pmac_awacs_update_automute(struct snd_pmac *chip, int do_notify)
+{
+	if (chip->auto_mute) {
+#ifdef PMAC_AMP_AVAIL
+		if (chip->mixer_data) {
+			struct awacs_amp *amp = chip->mixer_data;
+			int changed;
+			if (snd_pmac_awacs_detect_headphone(chip)) {
+				changed = toggle_amp_mute(amp, AMP_CH_HD, 0);
+				changed |= toggle_amp_mute(amp, AMP_CH_SPK, 1);
+			} else {
+				changed = toggle_amp_mute(amp, AMP_CH_HD, 1);
+				changed |= toggle_amp_mute(amp, AMP_CH_SPK, 0);
+			}
+			if (do_notify && ! changed)
+				return;
+		} else
+#endif
+		{
+			int reg = chip->awacs_reg[1]
+				| (MASK_HDMUTE | MASK_SPKMUTE);
+			if (imac1) {
+				reg &= ~MASK_SPKMUTE;
+				reg |= MASK_PAROUT1;
+			} else if (imac2) {
+				reg &= ~MASK_SPKMUTE;
+				reg &= ~MASK_PAROUT1;
+			}
+			if (snd_pmac_awacs_detect_headphone(chip))
+				reg &= ~MASK_HDMUTE;
+			else if (imac1)
+				reg &= ~MASK_PAROUT1;
+			else if (imac2)
+				reg |= MASK_PAROUT1;
+			else
+				reg &= ~MASK_SPKMUTE;
+			if (do_notify && reg == chip->awacs_reg[1])
+				return;
+			snd_pmac_awacs_write_reg(chip, 1, 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 chip
+ */
+int
+snd_pmac_awacs_init(struct snd_pmac *chip)
+{
+	int pm7500 = IS_PM7500;
+	int pm5500 = IS_PM5500;
+	int beige = IS_BEIGE;
+	int g4agp = IS_G4AGP;
+	int lombard = IS_LOMBARD;
+	int imac;
+	int err, vol;
+	struct snd_kcontrol *vmaster_sw, *vmaster_vol;
+	struct snd_kcontrol *master_vol, *speaker_vol;
+
+	imac1 = IS_IMAC1;
+	imac2 = IS_IMAC2;
+	imac = imac1 || imac2;
+	/* looks like MASK_GAINLINE triggers something, so we set here
+	 * as start-up
+	 */
+	chip->awacs_reg[0] = MASK_MUX_CD | 0xff | MASK_GAINLINE;
+	chip->awacs_reg[1] = MASK_CMUTE | MASK_AMUTE;
+	/* FIXME: Only machines with external SRS module need MASK_PAROUT */
+	if (chip->has_iic || chip->device_id == 0x5 ||
+	    /* chip->_device_id == 0x8 || */
+	    chip->device_id == 0xb)
+		chip->awacs_reg[1] |= MASK_PAROUT;
+	/* get default volume from nvram */
+	// vol = (~nvram_read_byte(0x1308) & 7) << 1;
+	// vol = ((pmac_xpram_read( 8 ) & 7 ) << 1 );
+	vol = 0x0f; /* no, on alsa, muted as default */
+	vol = vol + (vol << 6);
+	chip->awacs_reg[2] = vol;
+	chip->awacs_reg[4] = vol;
+	if (chip->model == PMAC_SCREAMER) {
+		/* FIXME: screamer has loopthru vol control */
+		chip->awacs_reg[5] = vol;
+		/* FIXME: maybe should be vol << 3 for PCMCIA speaker */
+		chip->awacs_reg[6] = MASK_MIC_BOOST;
+		chip->awacs_reg[7] = 0;
+	}
+
+	awacs_restore_all_regs(chip);
+	chip->manufacturer = (in_le32(&chip->awacs->codec_stat) >> 8) & 0xf;
+	screamer_recalibrate(chip);
+
+	chip->revision = (in_le32(&chip->awacs->codec_stat) >> 12) & 0xf;
+#ifdef PMAC_AMP_AVAIL
+	if (chip->revision == 3 && chip->has_iic && CHECK_CUDA_AMP()) {
+		struct awacs_amp *amp = kzalloc(sizeof(*amp), GFP_KERNEL);
+		if (! amp)
+			return -ENOMEM;
+		chip->mixer_data = amp;
+		chip->mixer_free = awacs_amp_free;
+		/* mute and zero vol */
+		awacs_amp_set_vol(amp, 0, 63, 63, 0);
+		awacs_amp_set_vol(amp, 1, 63, 63, 0);
+		awacs_amp_set_tone(amp, 7, 7); /* 0 dB */
+		awacs_amp_set_master(amp, 79); /* 0 dB */
+	}
+#endif /* PMAC_AMP_AVAIL */
+
+	if (chip->hp_stat_mask == 0) {
+		/* set headphone-jack detection bit */
+		switch (chip->model) {
+		case PMAC_AWACS:
+			chip->hp_stat_mask = pm7500 || pm5500 ? MASK_HDPCONN
+				: MASK_LOCONN;
+			break;
+		case PMAC_SCREAMER:
+			switch (chip->device_id) {
+			case 0x08:
+			case 0x0B:
+				chip->hp_stat_mask = imac
+					? MASK_LOCONN_IMAC |
+					MASK_HDPLCONN_IMAC |
+					MASK_HDPRCONN_IMAC
+					: MASK_HDPCONN;
+				break;
+			case 0x00:
+			case 0x05:
+				chip->hp_stat_mask = MASK_LOCONN;
+				break;
+			default:
+				chip->hp_stat_mask = MASK_HDPCONN;
+				break;
+			}
+			break;
+		default:
+			snd_BUG();
+			break;
+		}
+	}
+
+	/*
+	 * build mixers
+	 */
+	strcpy(chip->card->mixername, "PowerMac AWACS");
+
+	err = build_mixers(chip, ARRAY_SIZE(snd_pmac_awacs_mixers),
+				snd_pmac_awacs_mixers);
+	if (err < 0)
+		return err;
+	if (beige || g4agp)
+		;
+	else if (chip->model == PMAC_SCREAMER || pm5500)
+		err = build_mixers(chip, ARRAY_SIZE(snd_pmac_screamer_mixers2),
+				   snd_pmac_screamer_mixers2);
+	else if (!pm7500)
+		err = build_mixers(chip, ARRAY_SIZE(snd_pmac_awacs_mixers2),
+				   snd_pmac_awacs_mixers2);
+	if (err < 0)
+		return err;
+	if (pm5500) {
+		err = build_mixers(chip,
+				   ARRAY_SIZE(snd_pmac_awacs_mixers2_pmac5500),
+				   snd_pmac_awacs_mixers2_pmac5500);
+		if (err < 0)
+			return err;
+	}
+	master_vol = NULL;
+	if (pm7500)
+		err = build_mixers(chip,
+				   ARRAY_SIZE(snd_pmac_awacs_mixers_pmac7500),
+				   snd_pmac_awacs_mixers_pmac7500);
+	else if (pm5500)
+		err = snd_ctl_add(chip->card,
+		    (master_vol = snd_ctl_new1(snd_pmac_awacs_mixers_pmac5500,
+						chip)));
+	else if (beige)
+		err = build_mixers(chip,
+				   ARRAY_SIZE(snd_pmac_screamer_mixers_beige),
+				   snd_pmac_screamer_mixers_beige);
+	else if (imac || lombard) {
+		err = snd_ctl_add(chip->card,
+		    (master_vol = snd_ctl_new1(snd_pmac_screamer_mixers_lo,
+						chip)));
+		if (err < 0)
+			return err;
+		err = build_mixers(chip,
+				   ARRAY_SIZE(snd_pmac_screamer_mixers_imac),
+				   snd_pmac_screamer_mixers_imac);
+	} else if (g4agp)
+		err = build_mixers(chip,
+				   ARRAY_SIZE(snd_pmac_screamer_mixers_g4agp),
+				   snd_pmac_screamer_mixers_g4agp);
+	else
+		err = build_mixers(chip,
+				   ARRAY_SIZE(snd_pmac_awacs_mixers_pmac),
+				   snd_pmac_awacs_mixers_pmac);
+	if (err < 0)
+		return err;
+	chip->master_sw_ctl = snd_ctl_new1((pm7500 || imac || g4agp || lombard)
+			? &snd_pmac_awacs_master_sw_imac
+			: pm5500
+			? &snd_pmac_awacs_master_sw_pmac5500
+			: &snd_pmac_awacs_master_sw, chip);
+	err = snd_ctl_add(chip->card, chip->master_sw_ctl);
+	if (err < 0)
+		return err;
+#ifdef PMAC_AMP_AVAIL
+	if (chip->mixer_data) {
+		/* use amplifier.  the signal is connected from route A
+		 * to the amp.  the amp has its headphone and speaker
+		 * volumes and mute switches, so we use them instead of
+		 * screamer registers.
+		 * in this case, it seems the route C is not used.
+		 */
+		err = build_mixers(chip, ARRAY_SIZE(snd_pmac_awacs_amp_vol),
+					snd_pmac_awacs_amp_vol);
+		if (err < 0)
+			return err;
+		/* overwrite */
+		chip->master_sw_ctl = snd_ctl_new1(&snd_pmac_awacs_amp_hp_sw,
+							chip);
+		err = snd_ctl_add(chip->card, chip->master_sw_ctl);
+		if (err < 0)
+			return err;
+		chip->speaker_sw_ctl = snd_ctl_new1(&snd_pmac_awacs_amp_spk_sw,
+							chip);
+		err = snd_ctl_add(chip->card, chip->speaker_sw_ctl);
+		if (err < 0)
+			return err;
+	} else
+#endif /* PMAC_AMP_AVAIL */
+	{
+		/* route A = headphone, route C = speaker */
+		err = snd_ctl_add(chip->card,
+		    (speaker_vol = snd_ctl_new1(snd_pmac_awacs_speaker_vol,
+						chip)));
+		if (err < 0)
+			return err;
+		chip->speaker_sw_ctl = snd_ctl_new1(imac1
+				? &snd_pmac_awacs_speaker_sw_imac1
+				: imac2
+				? &snd_pmac_awacs_speaker_sw_imac2
+				: &snd_pmac_awacs_speaker_sw, chip);
+		err = snd_ctl_add(chip->card, chip->speaker_sw_ctl);
+		if (err < 0)
+			return err;
+	}
+
+	if (pm5500 || imac || lombard) {
+		vmaster_sw = snd_ctl_make_virtual_master(
+			"Master Playback Switch", (unsigned int *) NULL);
+		err = snd_ctl_add_slave_uncached(vmaster_sw,
+						 chip->master_sw_ctl);
+		if (err < 0)
+			return err;
+		err = snd_ctl_add_slave_uncached(vmaster_sw,
+						  chip->speaker_sw_ctl);
+		if (err < 0)
+			return err;
+		err = snd_ctl_add(chip->card, vmaster_sw);
+		if (err < 0)
+			return err;
+		vmaster_vol = snd_ctl_make_virtual_master(
+			"Master Playback Volume", (unsigned int *) NULL);
+		err = snd_ctl_add_slave(vmaster_vol, master_vol);
+		if (err < 0)
+			return err;
+		err = snd_ctl_add_slave(vmaster_vol, speaker_vol);
+		if (err < 0)
+			return err;
+		err = snd_ctl_add(chip->card, vmaster_vol);
+		if (err < 0)
+			return err;
+	}
+
+	if (beige || g4agp)
+		err = build_mixers(chip,
+				ARRAY_SIZE(snd_pmac_screamer_mic_boost_beige),
+				snd_pmac_screamer_mic_boost_beige);
+	else if (imac)
+		err = build_mixers(chip,
+				ARRAY_SIZE(snd_pmac_screamer_mic_boost_imac),
+				snd_pmac_screamer_mic_boost_imac);
+	else if (chip->model == PMAC_SCREAMER)
+		err = build_mixers(chip,
+				ARRAY_SIZE(snd_pmac_screamer_mic_boost),
+				snd_pmac_screamer_mic_boost);
+	else if (pm7500)
+		err = build_mixers(chip,
+				ARRAY_SIZE(snd_pmac_awacs_mic_boost_pmac7500),
+				snd_pmac_awacs_mic_boost_pmac7500);
+	else
+		err = build_mixers(chip, ARRAY_SIZE(snd_pmac_awacs_mic_boost),
+				snd_pmac_awacs_mic_boost);
+	if (err < 0)
+		return err;
+
+	/*
+	 * set lowlevel callbacks
+	 */
+	chip->set_format = snd_pmac_awacs_set_format;
+#ifdef CONFIG_PM
+	chip->suspend = snd_pmac_awacs_suspend;
+	chip->resume = snd_pmac_awacs_resume;
+#endif
+#ifdef PMAC_SUPPORT_AUTOMUTE
+	err = snd_pmac_add_automute(chip);
+	if (err < 0)
+		return err;
+	chip->detect_headphone = snd_pmac_awacs_detect_headphone;
+	chip->update_automute = snd_pmac_awacs_update_automute;
+	snd_pmac_awacs_update_automute(chip, 0); /* update the status only */
+#endif
+	if (chip->model == PMAC_SCREAMER) {
+		snd_pmac_awacs_write_noreg(chip, 6, chip->awacs_reg[6]);
+		snd_pmac_awacs_write_noreg(chip, 0, chip->awacs_reg[0]);
+	}
+
+	return 0;
+}
diff --git a/src/kernel/linux/v4.14/sound/ppc/awacs.h b/src/kernel/linux/v4.14/sound/ppc/awacs.h
new file mode 100644
index 0000000..c33e6a5
--- /dev/null
+++ b/src/kernel/linux/v4.14/sound/ppc/awacs.h
@@ -0,0 +1,205 @@
+/*
+ * Driver for PowerMac AWACS onboard soundchips
+ * Copyright (c) 2001 by Takashi Iwai <tiwai@suse.de>
+ *   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
+ */
+
+
+#ifndef __AWACS_H
+#define __AWACS_H
+
+/*******************************/
+/* AWACs Audio Register Layout */
+/*******************************/
+
+struct awacs_regs {
+    unsigned	control;	/* Audio control register */
+    unsigned	pad0[3];
+    unsigned	codec_ctrl;	/* Codec control register */
+    unsigned	pad1[3];
+    unsigned	codec_stat;	/* Codec status register */
+    unsigned	pad2[3];
+    unsigned	clip_count;	/* Clipping count register */
+    unsigned	pad3[3];
+    unsigned	byteswap;	/* Data is little-endian if 1 */
+};
+
+/*******************/
+/* Audio Bit Masks */
+/*******************/
+
+/* Audio Control Reg Bit Masks */
+/* ----- ------- --- --- ----- */
+#define MASK_ISFSEL	(0xf)		/* Input SubFrame Select */
+#define MASK_OSFSEL	(0xf << 4)	/* Output SubFrame Select */
+#define MASK_RATE	(0x7 << 8)	/* Sound Rate */
+#define MASK_CNTLERR	(0x1 << 11)	/* Error */
+#define MASK_PORTCHG	(0x1 << 12)	/* Port Change */
+#define MASK_IEE	(0x1 << 13)	/* Enable Interrupt on Error */
+#define MASK_IEPC	(0x1 << 14)	/* Enable Interrupt on Port Change */
+#define MASK_SSFSEL	(0x3 << 15)	/* Status SubFrame Select */
+
+/* Audio Codec Control Reg Bit Masks */
+/* ----- ----- ------- --- --- ----- */
+#define MASK_NEWECMD	(0x1 << 24)	/* Lock: don't write to reg when 1 */
+#define MASK_EMODESEL	(0x3 << 22)	/* Send info out on which frame? */
+#define MASK_EXMODEADDR	(0x3ff << 12)	/* Extended Mode Address -- 10 bits */
+#define MASK_EXMODEDATA	(0xfff)		/* Extended Mode Data -- 12 bits */
+
+/* Audio Codec Control Address Values / Masks */
+/* ----- ----- ------- ------- ------ - ----- */
+#define MASK_ADDR0	(0x0 << 12)	/* Expanded Data Mode Address 0 */
+#define MASK_ADDR_MUX	MASK_ADDR0	/* Mux Control */
+#define MASK_ADDR_GAIN	MASK_ADDR0
+
+#define MASK_ADDR1	(0x1 << 12)	/* Expanded Data Mode Address 1 */
+#define MASK_ADDR_MUTE	MASK_ADDR1
+#define MASK_ADDR_RATE	MASK_ADDR1
+
+#define MASK_ADDR2	(0x2 << 12)	/* Expanded Data Mode Address 2 */
+#define MASK_ADDR_VOLA	MASK_ADDR2	/* Volume Control A -- Headphones */
+#define MASK_ADDR_VOLHD MASK_ADDR2
+
+#define MASK_ADDR4	(0x4 << 12)	/* Expanded Data Mode Address 4 */
+#define MASK_ADDR_VOLC	MASK_ADDR4	/* Volume Control C -- Speaker */
+#define MASK_ADDR_VOLSPK MASK_ADDR4
+
+/* additional registers of screamer */
+#define MASK_ADDR5	(0x5 << 12)	/* Expanded Data Mode Address 5 */
+#define MASK_ADDR6	(0x6 << 12)	/* Expanded Data Mode Address 6 */
+#define MASK_ADDR7	(0x7 << 12)	/* Expanded Data Mode Address 7 */
+
+/* Address 0 Bit Masks & Macros */
+/* ------- - --- ----- - ------ */
+#define MASK_GAINRIGHT	(0xf)		/* Gain Right Mask */
+#define MASK_GAINLEFT	(0xf << 4)	/* Gain Left Mask */
+#define MASK_GAINLINE	(0x1 << 8)	/* Disable Mic preamp */
+#define MASK_GAINMIC	(0x0 << 8)	/* Enable Mic preamp */
+#define MASK_MUX_CD	(0x1 << 9)	/* Select CD in MUX */
+#define MASK_MUX_MIC	(0x1 << 10)	/* Select Mic in MUX */
+#define MASK_MUX_AUDIN	(0x1 << 11)	/* Select Audio In in MUX */
+#define MASK_MUX_LINE	MASK_MUX_AUDIN
+#define SHIFT_GAINLINE	8
+#define SHIFT_MUX_CD	9
+#define SHIFT_MUX_MIC	10
+#define SHIFT_MUX_LINE	11
+
+#define GAINRIGHT(x)	((x) & MASK_GAINRIGHT)
+#define GAINLEFT(x)	(((x) << 4) & MASK_GAINLEFT)
+
+/* Address 1 Bit Masks */
+/* ------- - --- ----- */
+#define MASK_ADDR1RES1	(0x3)		/* Reserved */
+#define MASK_RECALIBRATE (0x1 << 2)	/* Recalibrate */
+#define MASK_SAMPLERATE	(0x7 << 3)	/* Sample Rate: */
+#define MASK_LOOPTHRU	(0x1 << 6)	/* Loopthrough Enable */
+#define SHIFT_LOOPTHRU	6
+#define MASK_CMUTE	(0x1 << 7)	/* Output C (Speaker) Mute when 1 */
+#define MASK_SPKMUTE	MASK_CMUTE
+#define SHIFT_SPKMUTE	7
+#define MASK_ADDR1RES2	(0x1 << 8)	/* Reserved */
+#define MASK_AMUTE	(0x1 << 9)	/* Output A (Headphone) Mute when 1 */
+#define MASK_HDMUTE	MASK_AMUTE
+#define SHIFT_HDMUTE	9
+#define MASK_PAROUT	(0x3 << 10)	/* Parallel Out (???) */
+#define MASK_PAROUT0	(0x1 << 10)	/* Parallel Out (???) */
+#define MASK_PAROUT1	(0x1 << 11)	/* Parallel Out (enable speaker) */
+#define SHIFT_PAROUT	10
+#define SHIFT_PAROUT0	10
+#define SHIFT_PAROUT1	11
+
+#define SAMPLERATE_48000	(0x0 << 3)	/* 48 or 44.1 kHz */
+#define SAMPLERATE_32000	(0x1 << 3)	/* 32 or 29.4 kHz */
+#define SAMPLERATE_24000	(0x2 << 3)	/* 24 or 22.05 kHz */
+#define SAMPLERATE_19200	(0x3 << 3)	/* 19.2 or 17.64 kHz */
+#define SAMPLERATE_16000	(0x4 << 3)	/* 16 or 14.7 kHz */
+#define SAMPLERATE_12000	(0x5 << 3)	/* 12 or 11.025 kHz */
+#define SAMPLERATE_9600		(0x6 << 3)	/* 9.6 or 8.82 kHz */
+#define SAMPLERATE_8000		(0x7 << 3)	/* 8 or 7.35 kHz */
+
+/* Address 2 & 4 Bit Masks & Macros */
+/* ------- - - - --- ----- - ------ */
+#define MASK_OUTVOLRIGHT (0xf)		/* Output Right Volume */
+#define MASK_ADDR2RES1	(0x2 << 4)	/* Reserved */
+#define MASK_ADDR4RES1	MASK_ADDR2RES1
+#define MASK_OUTVOLLEFT	(0xf << 6)	/* Output Left Volume */
+#define MASK_ADDR2RES2	(0x2 << 10)	/* Reserved */
+#define MASK_ADDR4RES2	MASK_ADDR2RES2
+
+#define VOLRIGHT(x)	(((~(x)) & MASK_OUTVOLRIGHT))
+#define VOLLEFT(x)	(((~(x)) << 6) & MASK_OUTVOLLEFT)
+
+/* address 6 */
+#define MASK_MIC_BOOST  (0x4)		/* screamer mic boost */
+#define SHIFT_MIC_BOOST	2
+
+/* Audio Codec Status Reg Bit Masks */
+/* ----- ----- ------ --- --- ----- */
+#define MASK_EXTEND	(0x1 << 23)	/* Extend */
+#define MASK_VALID	(0x1 << 22)	/* Valid Data? */
+#define MASK_OFLEFT	(0x1 << 21)	/* Overflow Left */
+#define MASK_OFRIGHT	(0x1 << 20)	/* Overflow Right */
+#define MASK_ERRCODE	(0xf << 16)	/* Error Code */
+#define MASK_REVISION	(0xf << 12)	/* Revision Number */
+#define MASK_MFGID	(0xf << 8)	/* Mfg. ID */
+#define MASK_CODSTATRES	(0xf << 4)	/* bits 4 - 7 reserved */
+#define MASK_INSENSE	(0xf)		/* port sense bits: */
+#define MASK_HDPCONN		8	/* headphone plugged in */
+#define MASK_LOCONN		4	/* line-out plugged in */
+#define MASK_LICONN		2	/* line-in plugged in */
+#define MASK_MICCONN		1	/* microphone plugged in */
+#define MASK_LICONN_IMAC	8	/* line-in plugged in */
+#define MASK_HDPRCONN_IMAC	4	/* headphone right plugged in */
+#define MASK_HDPLCONN_IMAC	2	/* headphone left plugged in */
+#define MASK_LOCONN_IMAC	1	/* line-out plugged in */
+
+/* Clipping Count Reg Bit Masks */
+/* -------- ----- --- --- ----- */
+#define MASK_CLIPLEFT	(0xff << 7)	/* Clipping Count, Left Channel */
+#define MASK_CLIPRIGHT	(0xff)		/* Clipping Count, Right Channel */
+
+/* DBDMA ChannelStatus Bit Masks */
+/* ----- ------------- --- ----- */
+#define MASK_CSERR	(0x1 << 7)	/* Error */
+#define MASK_EOI	(0x1 << 6)	/* End of Input --
+					   only for Input Channel */
+#define MASK_CSUNUSED	(0x1f << 1)	/* bits 1-5 not used */
+#define MASK_WAIT	(0x1)		/* Wait */
+
+/* Various Rates */
+/* ------- ----- */
+#define RATE_48000	(0x0 << 8)	/* 48 kHz */
+#define RATE_44100	(0x0 << 8)	/* 44.1 kHz */
+#define RATE_32000	(0x1 << 8)	/* 32 kHz */
+#define RATE_29400	(0x1 << 8)	/* 29.4 kHz */
+#define RATE_24000	(0x2 << 8)	/* 24 kHz */
+#define RATE_22050	(0x2 << 8)	/* 22.05 kHz */
+#define RATE_19200	(0x3 << 8)	/* 19.2 kHz */
+#define RATE_17640	(0x3 << 8)	/* 17.64 kHz */
+#define RATE_16000	(0x4 << 8)	/* 16 kHz */
+#define RATE_14700	(0x4 << 8)	/* 14.7 kHz */
+#define RATE_12000	(0x5 << 8)	/* 12 kHz */
+#define RATE_11025	(0x5 << 8)	/* 11.025 kHz */
+#define RATE_9600	(0x6 << 8)	/* 9.6 kHz */
+#define RATE_8820	(0x6 << 8)	/* 8.82 kHz */
+#define RATE_8000	(0x7 << 8)	/* 8 kHz */
+#define RATE_7350	(0x7 << 8)	/* 7.35 kHz */
+
+#define RATE_LOW	1	/* HIGH = 48kHz, etc;  LOW = 44.1kHz, etc. */
+
+
+#endif /* __AWACS_H */
diff --git a/src/kernel/linux/v4.14/sound/ppc/beep.c b/src/kernel/linux/v4.14/sound/ppc/beep.c
new file mode 100644
index 0000000..f19eb3e
--- /dev/null
+++ b/src/kernel/linux/v4.14/sound/ppc/beep.c
@@ -0,0 +1,285 @@
+/*
+ * Beep using pcm
+ *
+ * Copyright (c) by 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 <linux/io.h>
+#include <asm/irq.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/pci.h>
+#include <linux/dma-mapping.h>
+#include <sound/core.h>
+#include <sound/control.h>
+#include "pmac.h"
+
+struct pmac_beep {
+	int running;		/* boolean */
+	int volume;		/* mixer volume: 0-100 */
+	int volume_play;	/* currently playing volume */
+	int hz;
+	int nsamples;
+	short *buf;		/* allocated wave buffer */
+	dma_addr_t addr;	/* physical address of buffer */
+	struct input_dev *dev;
+};
+
+/*
+ * stop beep if running
+ */
+void snd_pmac_beep_stop(struct snd_pmac *chip)
+{
+	struct pmac_beep *beep = chip->beep;
+	if (beep && beep->running) {
+		beep->running = 0;
+		snd_pmac_beep_dma_stop(chip);
+	}
+}
+
+/*
+ * Stuff for outputting a beep.  The values range from -327 to +327
+ * so we can multiply by an amplitude in the range 0..100 to get a
+ * signed short value to put in the output buffer.
+ */
+static short beep_wform[256] = {
+	0,	40,	79,	117,	153,	187,	218,	245,
+	269,	288,	304,	316,	323,	327,	327,	324,
+	318,	310,	299,	288,	275,	262,	249,	236,
+	224,	213,	204,	196,	190,	186,	183,	182,
+	182,	183,	186,	189,	192,	196,	200,	203,
+	206,	208,	209,	209,	209,	207,	204,	201,
+	197,	193,	188,	183,	179,	174,	170,	166,
+	163,	161,	160,	159,	159,	160,	161,	162,
+	164,	166,	168,	169,	171,	171,	171,	170,
+	169,	167,	163,	159,	155,	150,	144,	139,
+	133,	128,	122,	117,	113,	110,	107,	105,
+	103,	103,	103,	103,	104,	104,	105,	105,
+	105,	103,	101,	97,	92,	86,	78,	68,
+	58,	45,	32,	18,	3,	-11,	-26,	-41,
+	-55,	-68,	-79,	-88,	-95,	-100,	-102,	-102,
+	-99,	-93,	-85,	-75,	-62,	-48,	-33,	-16,
+	0,	16,	33,	48,	62,	75,	85,	93,
+	99,	102,	102,	100,	95,	88,	79,	68,
+	55,	41,	26,	11,	-3,	-18,	-32,	-45,
+	-58,	-68,	-78,	-86,	-92,	-97,	-101,	-103,
+	-105,	-105,	-105,	-104,	-104,	-103,	-103,	-103,
+	-103,	-105,	-107,	-110,	-113,	-117,	-122,	-128,
+	-133,	-139,	-144,	-150,	-155,	-159,	-163,	-167,
+	-169,	-170,	-171,	-171,	-171,	-169,	-168,	-166,
+	-164,	-162,	-161,	-160,	-159,	-159,	-160,	-161,
+	-163,	-166,	-170,	-174,	-179,	-183,	-188,	-193,
+	-197,	-201,	-204,	-207,	-209,	-209,	-209,	-208,
+	-206,	-203,	-200,	-196,	-192,	-189,	-186,	-183,
+	-182,	-182,	-183,	-186,	-190,	-196,	-204,	-213,
+	-224,	-236,	-249,	-262,	-275,	-288,	-299,	-310,
+	-318,	-324,	-327,	-327,	-323,	-316,	-304,	-288,
+	-269,	-245,	-218,	-187,	-153,	-117,	-79,	-40,
+};
+
+#define BEEP_SRATE	22050	/* 22050 Hz sample rate */
+#define BEEP_BUFLEN	512
+#define BEEP_VOLUME	15	/* 0 - 100 */
+
+static int snd_pmac_beep_event(struct input_dev *dev, unsigned int type,
+			       unsigned int code, int hz)
+{
+	struct snd_pmac *chip;
+	struct pmac_beep *beep;
+	unsigned long flags;
+	int beep_speed = 0;
+	int srate;
+	int period, ncycles, nsamples;
+	int i, j, f;
+	short *p;
+
+	if (type != EV_SND)
+		return -1;
+
+	switch (code) {
+	case SND_BELL: if (hz) hz = 1000;
+	case SND_TONE: break;
+	default: return -1;
+	}
+
+	chip = input_get_drvdata(dev);
+	if (! chip || (beep = chip->beep) == NULL)
+		return -1;
+
+	if (! hz) {
+		spin_lock_irqsave(&chip->reg_lock, flags);
+		if (beep->running)
+			snd_pmac_beep_stop(chip);
+		spin_unlock_irqrestore(&chip->reg_lock, flags);
+		return 0;
+	}
+
+	beep_speed = snd_pmac_rate_index(chip, &chip->playback, BEEP_SRATE);
+	srate = chip->freq_table[beep_speed];
+
+	if (hz <= srate / BEEP_BUFLEN || hz > srate / 2)
+		hz = 1000;
+
+	spin_lock_irqsave(&chip->reg_lock, flags);
+	if (chip->playback.running || chip->capture.running || beep->running) {
+		spin_unlock_irqrestore(&chip->reg_lock, flags);
+		return 0;
+	}
+	beep->running = 1;
+	spin_unlock_irqrestore(&chip->reg_lock, flags);
+
+	if (hz == beep->hz && beep->volume == beep->volume_play) {
+		nsamples = beep->nsamples;
+	} else {
+		period = srate * 256 / hz;	/* fixed point */
+		ncycles = BEEP_BUFLEN * 256 / period;
+		nsamples = (period * ncycles) >> 8;
+		f = ncycles * 65536 / nsamples;
+		j = 0;
+		p = beep->buf;
+		for (i = 0; i < nsamples; ++i, p += 2) {
+			p[0] = p[1] = beep_wform[j >> 8] * beep->volume;
+			j = (j + f) & 0xffff;
+		}
+		beep->hz = hz;
+		beep->volume_play = beep->volume;
+		beep->nsamples = nsamples;
+	}
+
+	spin_lock_irqsave(&chip->reg_lock, flags);
+	snd_pmac_beep_dma_start(chip, beep->nsamples * 4, beep->addr, beep_speed);
+	spin_unlock_irqrestore(&chip->reg_lock, flags);
+	return 0;
+}
+
+/*
+ * beep volume mixer
+ */
+
+static int snd_pmac_info_beep(struct snd_kcontrol *kcontrol,
+			      struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->count = 1;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = 100;
+	return 0;
+}
+
+static int snd_pmac_get_beep(struct snd_kcontrol *kcontrol,
+			     struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
+	if (snd_BUG_ON(!chip->beep))
+		return -ENXIO;
+	ucontrol->value.integer.value[0] = chip->beep->volume;
+	return 0;
+}
+
+static int snd_pmac_put_beep(struct snd_kcontrol *kcontrol,
+			     struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
+	unsigned int oval, nval;
+	if (snd_BUG_ON(!chip->beep))
+		return -ENXIO;
+	oval = chip->beep->volume;
+	nval = ucontrol->value.integer.value[0];
+	if (nval > 100)
+		return -EINVAL;
+	chip->beep->volume = nval;
+	return oval != chip->beep->volume;
+}
+
+static const struct snd_kcontrol_new snd_pmac_beep_mixer = {
+	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+	.name = "Beep Playback Volume",
+	.info = snd_pmac_info_beep,
+	.get = snd_pmac_get_beep,
+	.put = snd_pmac_put_beep,
+};
+
+/* Initialize beep stuff */
+int snd_pmac_attach_beep(struct snd_pmac *chip)
+{
+	struct pmac_beep *beep;
+	struct input_dev *input_dev;
+	struct snd_kcontrol *beep_ctl;
+	void *dmabuf;
+	int err = -ENOMEM;
+
+	beep = kzalloc(sizeof(*beep), GFP_KERNEL);
+	if (! beep)
+		return -ENOMEM;
+	dmabuf = dma_alloc_coherent(&chip->pdev->dev, BEEP_BUFLEN * 4,
+				    &beep->addr, GFP_KERNEL);
+	input_dev = input_allocate_device();
+	if (! dmabuf || ! input_dev)
+		goto fail1;
+
+	/* FIXME: set more better values */
+	input_dev->name = "PowerMac Beep";
+	input_dev->phys = "powermac/beep";
+	input_dev->id.bustype = BUS_ADB;
+	input_dev->id.vendor = 0x001f;
+	input_dev->id.product = 0x0001;
+	input_dev->id.version = 0x0100;
+
+	input_dev->evbit[0] = BIT_MASK(EV_SND);
+	input_dev->sndbit[0] = BIT_MASK(SND_BELL) | BIT_MASK(SND_TONE);
+	input_dev->event = snd_pmac_beep_event;
+	input_dev->dev.parent = &chip->pdev->dev;
+	input_set_drvdata(input_dev, chip);
+
+	beep->dev = input_dev;
+	beep->buf = dmabuf;
+	beep->volume = BEEP_VOLUME;
+	beep->running = 0;
+
+	beep_ctl = snd_ctl_new1(&snd_pmac_beep_mixer, chip);
+	err = snd_ctl_add(chip->card, beep_ctl);
+	if (err < 0)
+		goto fail1;
+
+	chip->beep = beep;
+
+	err = input_register_device(beep->dev);
+	if (err)
+		goto fail2;
+ 
+ 	return 0;
+ 
+ fail2:	snd_ctl_remove(chip->card, beep_ctl);
+ fail1:	input_free_device(input_dev);
+	if (dmabuf)
+		dma_free_coherent(&chip->pdev->dev, BEEP_BUFLEN * 4,
+				  dmabuf, beep->addr);
+	kfree(beep);
+	return err;
+}
+
+void snd_pmac_detach_beep(struct snd_pmac *chip)
+{
+	if (chip->beep) {
+		input_unregister_device(chip->beep->dev);
+		dma_free_coherent(&chip->pdev->dev, BEEP_BUFLEN * 4,
+				  chip->beep->buf, chip->beep->addr);
+		kfree(chip->beep);
+		chip->beep = NULL;
+	}
+}
diff --git a/src/kernel/linux/v4.14/sound/ppc/burgundy.c b/src/kernel/linux/v4.14/sound/ppc/burgundy.c
new file mode 100644
index 0000000..b86159e
--- /dev/null
+++ b/src/kernel/linux/v4.14/sound/ppc/burgundy.c
@@ -0,0 +1,732 @@
+/*
+ * 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 <linux/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\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 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),
+ */	BURGUNDY_SWITCH_B("PCM Capture Switch", 0,
+			MASK_ADDR_BURGUNDY_HOSTIFEH, 0x01, 0, 0)
+};
+static 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 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 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 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 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 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 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 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 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
+	 */
+	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;
+}
diff --git a/src/kernel/linux/v4.14/sound/ppc/burgundy.h b/src/kernel/linux/v4.14/sound/ppc/burgundy.h
new file mode 100644
index 0000000..7a7f9cf
--- /dev/null
+++ b/src/kernel/linux/v4.14/sound/ppc/burgundy.h
@@ -0,0 +1,114 @@
+/*
+ * Driver for PowerMac Burgundy onboard soundchips
+ * Copyright (c) 2001 by Takashi Iwai <tiwai@suse.de>
+ *   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
+ */
+
+
+#ifndef __BURGUNDY_H
+#define __BURGUNDY_H
+
+#define MASK_ADDR_BURGUNDY_INPBOOST (0x10 << 12)
+#define MASK_ADDR_BURGUNDY_INPSEL21 (0x11 << 12)
+#define MASK_ADDR_BURGUNDY_INPSEL3 (0x12 << 12)
+
+#define MASK_ADDR_BURGUNDY_GAINCH1 (0x13 << 12)
+#define MASK_ADDR_BURGUNDY_GAINCH2 (0x14 << 12)
+#define MASK_ADDR_BURGUNDY_GAINCH3 (0x15 << 12)
+#define MASK_ADDR_BURGUNDY_GAINCH4 (0x16 << 12)
+
+#define MASK_ADDR_BURGUNDY_VOLCH1 (0x20 << 12)
+#define MASK_ADDR_BURGUNDY_VOLCH2 (0x21 << 12)
+#define MASK_ADDR_BURGUNDY_VOLCH3 (0x22 << 12)
+#define MASK_ADDR_BURGUNDY_VOLCH4 (0x23 << 12)
+
+#define MASK_ADDR_BURGUNDY_CAPTURESELECTS (0x2A << 12)
+#define MASK_ADDR_BURGUNDY_OUTPUTSELECTS (0x2B << 12)
+#define MASK_ADDR_BURGUNDY_VOLMIX01 (0x2D << 12)
+#define MASK_ADDR_BURGUNDY_VOLMIX23 (0x2E << 12)
+#define MASK_ADDR_BURGUNDY_OUTPUTENABLES (0x2F << 12)
+
+#define MASK_ADDR_BURGUNDY_MASTER_VOLUME (0x30 << 12)
+
+#define MASK_ADDR_BURGUNDY_MORE_OUTPUTENABLES (0x60 << 12)
+
+#define MASK_ADDR_BURGUNDY_ATTENSPEAKER (0x62 << 12)
+#define MASK_ADDR_BURGUNDY_ATTENLINEOUT (0x63 << 12)
+#define MASK_ADDR_BURGUNDY_ATTENHP (0x64 << 12)
+#define MASK_ADDR_BURGUNDY_ATTENMONO (0x65 << 12)
+
+#define MASK_ADDR_BURGUNDY_HOSTIFAD (0x78 << 12)
+#define MASK_ADDR_BURGUNDY_HOSTIFEH (0x79 << 12)
+
+#define MASK_ADDR_BURGUNDY_VOLCD (MASK_ADDR_BURGUNDY_VOLCH1)
+#define MASK_ADDR_BURGUNDY_VOLLINE (MASK_ADDR_BURGUNDY_VOLCH2)
+#define MASK_ADDR_BURGUNDY_VOLMIC (MASK_ADDR_BURGUNDY_VOLCH3)
+#define MASK_ADDR_BURGUNDY_VOLMODEM (MASK_ADDR_BURGUNDY_VOLCH4)
+
+#define MASK_ADDR_BURGUNDY_GAINCD (MASK_ADDR_BURGUNDY_GAINCH1)
+#define MASK_ADDR_BURGUNDY_GAINLINE (MASK_ADDR_BURGUNDY_GAINCH2)
+#define MASK_ADDR_BURGUNDY_GAINMIC (MASK_ADDR_BURGUNDY_GAINCH3)
+#define MASK_ADDR_BURGUNDY_GAINMODEM (MASK_ADDR_BURGUNDY_VOLCH4)
+
+
+/* These are all default values for the burgundy */
+#define DEF_BURGUNDY_INPSEL21 (0xAA)
+#define DEF_BURGUNDY_INPSEL3_IMAC (0x0A)
+#define DEF_BURGUNDY_INPSEL3_PMAC (0x05)
+
+#define DEF_BURGUNDY_GAINCD (0x33)
+#define DEF_BURGUNDY_GAINLINE (0x44)
+#define DEF_BURGUNDY_GAINMIC (0x44)
+#define DEF_BURGUNDY_GAINMODEM (0x06)
+
+/* Remember: lowest volume here is 0x9B (155) */
+#define DEF_BURGUNDY_VOLCD (0xCCCCCCCC)
+#define DEF_BURGUNDY_VOLLINE (0x00000000)
+#define DEF_BURGUNDY_VOLMIC (0x00000000)
+#define DEF_BURGUNDY_VOLMODEM (0xCCCCCCCC)
+
+#define DEF_BURGUNDY_OUTPUTSELECTS (0x010F010F)
+#define DEF_BURGUNDY_OUTPUTENABLES (0x0100000A)
+
+/* #define DEF_BURGUNDY_MASTER_VOLUME (0xFFFFFFFF) */ /* too loud */
+#define DEF_BURGUNDY_MASTER_VOLUME (0xDDDDDDDD)
+
+#define DEF_BURGUNDY_MORE_OUTPUTENABLES (0x7E)
+
+#define DEF_BURGUNDY_ATTENSPEAKER (0x44)
+#define DEF_BURGUNDY_ATTENLINEOUT (0xCC)
+#define DEF_BURGUNDY_ATTENHP (0xCC)
+
+/* MORE_OUTPUTENABLES bits */
+#define BURGUNDY_OUTPUT_LEFT	0x02
+#define BURGUNDY_OUTPUT_RIGHT	0x04
+#define BURGUNDY_LINEOUT_LEFT	0x08
+#define BURGUNDY_LINEOUT_RIGHT	0x10
+#define BURGUNDY_HP_LEFT	0x20
+#define BURGUNDY_HP_RIGHT	0x40
+#define BURGUNDY_OUTPUT_INTERN	0x80
+
+/* Headphone detection bits */
+#define BURGUNDY_HPDETECT_PMAC_BACK	0x04
+#define BURGUNDY_HPDETECT_IMAC_SIDE	0x04
+#define BURGUNDY_HPDETECT_IMAC_UPPER	0x08
+#define BURGUNDY_HPDETECT_IMAC_LOWER	0x01
+
+/* Volume offset */
+#define BURGUNDY_VOLUME_OFFSET	155
+
+#endif /* __BURGUNDY_H */
diff --git a/src/kernel/linux/v4.14/sound/ppc/daca.c b/src/kernel/linux/v4.14/sound/ppc/daca.c
new file mode 100644
index 0000000..b865262
--- /dev/null
+++ b/src/kernel/linux/v4.14/sound/ppc/daca.c
@@ -0,0 +1,282 @@
+/*
+ * PMac DACA lowlevel functions
+ *
+ * Copyright (c) by 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 <linux/init.h>
+#include <linux/i2c.h>
+#include <linux/kmod.h>
+#include <linux/slab.h>
+#include <sound/core.h>
+#include "pmac.h"
+
+/* i2c address */
+#define DACA_I2C_ADDR	0x4d
+
+/* registers */
+#define DACA_REG_SR	0x01
+#define DACA_REG_AVOL	0x02
+#define DACA_REG_GCFG	0x03
+
+/* maximum volume value */
+#define DACA_VOL_MAX	0x38
+
+
+struct pmac_daca {
+	struct pmac_keywest i2c;
+	int left_vol, right_vol;
+	unsigned int deemphasis : 1;
+	unsigned int amp_on : 1;
+};
+
+
+/*
+ * initialize / detect DACA
+ */
+static int daca_init_client(struct pmac_keywest *i2c)
+{
+	unsigned short wdata = 0x00;
+	/* SR: no swap, 1bit delay, 32-48kHz */
+	/* GCFG: power amp inverted, DAC on */
+	if (i2c_smbus_write_byte_data(i2c->client, DACA_REG_SR, 0x08) < 0 ||
+	    i2c_smbus_write_byte_data(i2c->client, DACA_REG_GCFG, 0x05) < 0)
+		return -EINVAL;
+	return i2c_smbus_write_block_data(i2c->client, DACA_REG_AVOL,
+					  2, (unsigned char*)&wdata);
+}
+
+/*
+ * update volume
+ */
+static int daca_set_volume(struct pmac_daca *mix)
+{
+	unsigned char data[2];
+  
+	if (! mix->i2c.client)
+		return -ENODEV;
+  
+	if (mix->left_vol > DACA_VOL_MAX)
+		data[0] = DACA_VOL_MAX;
+	else
+		data[0] = mix->left_vol;
+	if (mix->right_vol > DACA_VOL_MAX)
+		data[1] = DACA_VOL_MAX;
+	else
+		data[1] = mix->right_vol;
+	data[1] |= mix->deemphasis ? 0x40 : 0;
+	if (i2c_smbus_write_block_data(mix->i2c.client, DACA_REG_AVOL,
+				       2, data) < 0) {
+		snd_printk(KERN_ERR "failed to set volume \n");
+		return -EINVAL;
+	}
+	return 0;
+}
+
+
+/* deemphasis switch */
+#define daca_info_deemphasis		snd_ctl_boolean_mono_info
+
+static int daca_get_deemphasis(struct snd_kcontrol *kcontrol,
+			       struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
+	struct pmac_daca *mix;
+	if (! (mix = chip->mixer_data))
+		return -ENODEV;
+	ucontrol->value.integer.value[0] = mix->deemphasis ? 1 : 0;
+	return 0;
+}
+
+static int daca_put_deemphasis(struct snd_kcontrol *kcontrol,
+			       struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
+	struct pmac_daca *mix;
+	int change;
+
+	if (! (mix = chip->mixer_data))
+		return -ENODEV;
+	change = mix->deemphasis != ucontrol->value.integer.value[0];
+	if (change) {
+		mix->deemphasis = !!ucontrol->value.integer.value[0];
+		daca_set_volume(mix);
+	}
+	return change;
+}
+
+/* output volume */
+static int daca_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 = DACA_VOL_MAX;
+	return 0;
+}
+
+static int daca_get_volume(struct snd_kcontrol *kcontrol,
+			   struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
+	struct pmac_daca *mix;
+	if (! (mix = chip->mixer_data))
+		return -ENODEV;
+	ucontrol->value.integer.value[0] = mix->left_vol;
+	ucontrol->value.integer.value[1] = mix->right_vol;
+	return 0;
+}
+
+static int daca_put_volume(struct snd_kcontrol *kcontrol,
+			   struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
+	struct pmac_daca *mix;
+	unsigned int vol[2];
+	int change;
+
+	if (! (mix = chip->mixer_data))
+		return -ENODEV;
+	vol[0] = ucontrol->value.integer.value[0];
+	vol[1] = ucontrol->value.integer.value[1];
+	if (vol[0] > DACA_VOL_MAX || vol[1] > DACA_VOL_MAX)
+		return -EINVAL;
+	change = mix->left_vol != vol[0] ||
+		mix->right_vol != vol[1];
+	if (change) {
+		mix->left_vol = vol[0];
+		mix->right_vol = vol[1];
+		daca_set_volume(mix);
+	}
+	return change;
+}
+
+/* amplifier switch */
+#define daca_info_amp	daca_info_deemphasis
+
+static int daca_get_amp(struct snd_kcontrol *kcontrol,
+			struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
+	struct pmac_daca *mix;
+	if (! (mix = chip->mixer_data))
+		return -ENODEV;
+	ucontrol->value.integer.value[0] = mix->amp_on ? 1 : 0;
+	return 0;
+}
+
+static int daca_put_amp(struct snd_kcontrol *kcontrol,
+			struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
+	struct pmac_daca *mix;
+	int change;
+
+	if (! (mix = chip->mixer_data))
+		return -ENODEV;
+	change = mix->amp_on != ucontrol->value.integer.value[0];
+	if (change) {
+		mix->amp_on = !!ucontrol->value.integer.value[0];
+		i2c_smbus_write_byte_data(mix->i2c.client, DACA_REG_GCFG,
+					  mix->amp_on ? 0x05 : 0x04);
+	}
+	return change;
+}
+
+static struct snd_kcontrol_new daca_mixers[] = {
+	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+	  .name = "Deemphasis Switch",
+	  .info = daca_info_deemphasis,
+	  .get = daca_get_deemphasis,
+	  .put = daca_put_deemphasis
+	},
+	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+	  .name = "Master Playback Volume",
+	  .info = daca_info_volume,
+	  .get = daca_get_volume,
+	  .put = daca_put_volume
+	},
+	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+	  .name = "Power Amplifier Switch",
+	  .info = daca_info_amp,
+	  .get = daca_get_amp,
+	  .put = daca_put_amp
+	},
+};
+
+
+#ifdef CONFIG_PM
+static void daca_resume(struct snd_pmac *chip)
+{
+	struct pmac_daca *mix = chip->mixer_data;
+	i2c_smbus_write_byte_data(mix->i2c.client, DACA_REG_SR, 0x08);
+	i2c_smbus_write_byte_data(mix->i2c.client, DACA_REG_GCFG,
+				  mix->amp_on ? 0x05 : 0x04);
+	daca_set_volume(mix);
+}
+#endif /* CONFIG_PM */
+
+
+static void daca_cleanup(struct snd_pmac *chip)
+{
+	struct pmac_daca *mix = chip->mixer_data;
+	if (! mix)
+		return;
+	snd_pmac_keywest_cleanup(&mix->i2c);
+	kfree(mix);
+	chip->mixer_data = NULL;
+}
+
+/* exported */
+int snd_pmac_daca_init(struct snd_pmac *chip)
+{
+	int i, err;
+	struct pmac_daca *mix;
+
+	request_module("i2c-powermac");
+
+	mix = kzalloc(sizeof(*mix), GFP_KERNEL);
+	if (! mix)
+		return -ENOMEM;
+	chip->mixer_data = mix;
+	chip->mixer_free = daca_cleanup;
+	mix->amp_on = 1; /* default on */
+
+	mix->i2c.addr = DACA_I2C_ADDR;
+	mix->i2c.init_client = daca_init_client;
+	mix->i2c.name = "DACA";
+	if ((err = snd_pmac_keywest_init(&mix->i2c)) < 0)
+		return err;
+
+	/*
+	 * build mixers
+	 */
+	strcpy(chip->card->mixername, "PowerMac DACA");
+
+	for (i = 0; i < ARRAY_SIZE(daca_mixers); i++) {
+		if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&daca_mixers[i], chip))) < 0)
+			return err;
+	}
+
+#ifdef CONFIG_PM
+	chip->resume = daca_resume;
+#endif
+
+	return 0;
+}
diff --git a/src/kernel/linux/v4.14/sound/ppc/keywest.c b/src/kernel/linux/v4.14/sound/ppc/keywest.c
new file mode 100644
index 0000000..4373615
--- /dev/null
+++ b/src/kernel/linux/v4.14/sound/ppc/keywest.c
@@ -0,0 +1,175 @@
+/*
+ * common keywest i2c layer
+ *
+ * Copyright (c) by 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 <linux/init.h>
+#include <linux/i2c.h>
+#include <linux/delay.h>
+#include <linux/module.h>
+#include <sound/core.h>
+#include "pmac.h"
+
+/*
+ * we have to keep a static variable here since i2c attach_adapter
+ * callback cannot pass a private data.
+ */
+static struct pmac_keywest *keywest_ctx;
+
+static bool keywest_probed;
+
+static int keywest_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id)
+{
+	keywest_probed = true;
+	/* If instantiated via i2c-powermac, we still need to set the client */
+	if (!keywest_ctx->client)
+		keywest_ctx->client = client;
+	i2c_set_clientdata(client, keywest_ctx);
+	return 0;
+}
+
+/*
+ * This is kind of a hack, best would be to turn powermac to fixed i2c
+ * bus numbers and declare the sound device as part of platform
+ * initialization
+ */
+static int keywest_attach_adapter(struct i2c_adapter *adapter)
+{
+	struct i2c_board_info info;
+
+	if (! keywest_ctx)
+		return -EINVAL;
+
+	if (strncmp(adapter->name, "mac-io", 6))
+		return -EINVAL; /* ignored */
+
+	memset(&info, 0, sizeof(struct i2c_board_info));
+	strlcpy(info.type, "keywest", I2C_NAME_SIZE);
+	info.addr = keywest_ctx->addr;
+	keywest_ctx->client = i2c_new_device(adapter, &info);
+	if (!keywest_ctx->client)
+		return -ENODEV;
+	/*
+	 * We know the driver is already loaded, so the device should be
+	 * already bound. If not it means binding failed, and then there
+	 * is no point in keeping the device instantiated.
+	 */
+	if (!keywest_ctx->client->dev.driver) {
+		i2c_unregister_device(keywest_ctx->client);
+		keywest_ctx->client = NULL;
+		return -ENODEV;
+	}
+	
+	/*
+	 * Let i2c-core delete that device on driver removal.
+	 * This is safe because i2c-core holds the core_lock mutex for us.
+	 */
+	list_add_tail(&keywest_ctx->client->detected,
+		      &to_i2c_driver(keywest_ctx->client->dev.driver)->clients);
+	return 0;
+}
+
+static int keywest_remove(struct i2c_client *client)
+{
+	if (! keywest_ctx)
+		return 0;
+	if (client == keywest_ctx->client)
+		keywest_ctx->client = NULL;
+
+	return 0;
+}
+
+
+static const struct i2c_device_id keywest_i2c_id[] = {
+	{ "MAC,tas3004", 0 },		/* instantiated by i2c-powermac */
+	{ "keywest", 0 },		/* instantiated by us if needed */
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, keywest_i2c_id);
+
+static struct i2c_driver keywest_driver = {
+	.driver = {
+		.name = "PMac Keywest Audio",
+	},
+	.probe = keywest_probe,
+	.remove = keywest_remove,
+	.id_table = keywest_i2c_id,
+};
+
+/* exported */
+void snd_pmac_keywest_cleanup(struct pmac_keywest *i2c)
+{
+	if (keywest_ctx && keywest_ctx == i2c) {
+		i2c_del_driver(&keywest_driver);
+		keywest_ctx = NULL;
+	}
+}
+
+int snd_pmac_tumbler_post_init(void)
+{
+	int err;
+	
+	if (!keywest_ctx || !keywest_ctx->client)
+		return -ENXIO;
+
+	if ((err = keywest_ctx->init_client(keywest_ctx)) < 0) {
+		snd_printk(KERN_ERR "tumbler: %i :cannot initialize the MCS\n", err);
+		return err;
+	}
+	return 0;
+}
+
+/* exported */
+int snd_pmac_keywest_init(struct pmac_keywest *i2c)
+{
+	struct i2c_adapter *adap;
+	int err, i = 0;
+
+	if (keywest_ctx)
+		return -EBUSY;
+
+	adap = i2c_get_adapter(0);
+	if (!adap)
+		return -EPROBE_DEFER;
+
+	keywest_ctx = i2c;
+
+	if ((err = i2c_add_driver(&keywest_driver))) {
+		snd_printk(KERN_ERR "cannot register keywest i2c driver\n");
+		i2c_put_adapter(adap);
+		return err;
+	}
+
+	/* There was already a device from i2c-powermac. Great, let's return */
+	if (keywest_probed)
+		return 0;
+
+	/* We assume Macs have consecutive I2C bus numbers starting at 0 */
+	while (adap) {
+		/* Scan for devices to be bound to */
+		err = keywest_attach_adapter(adap);
+		if (!err)
+			return 0;
+		i2c_put_adapter(adap);
+		adap = i2c_get_adapter(++i);
+	}
+
+	return -ENODEV;
+}
diff --git a/src/kernel/linux/v4.14/sound/ppc/pmac.c b/src/kernel/linux/v4.14/sound/ppc/pmac.c
new file mode 100644
index 0000000..48dd44f
--- /dev/null
+++ b/src/kernel/linux/v4.14/sound/ppc/pmac.c
@@ -0,0 +1,1405 @@
+/*
+ * PMac DBDMA 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 <linux/io.h>
+#include <asm/irq.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <linux/pci.h>
+#include <linux/dma-mapping.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
+#include <sound/core.h>
+#include "pmac.h"
+#include <sound/pcm_params.h>
+#include <asm/pmac_feature.h>
+
+
+/* fixed frequency table for awacs, screamer, burgundy, DACA (44100 max) */
+static int awacs_freqs[8] = {
+	44100, 29400, 22050, 17640, 14700, 11025, 8820, 7350
+};
+/* fixed frequency table for tumbler */
+static int tumbler_freqs[1] = {
+	44100
+};
+
+
+/*
+ * we will allocate a single 'emergency' dbdma cmd block to use if the
+ * tx status comes up "DEAD".  This happens on some PowerComputing Pmac
+ * clones, either owing to a bug in dbdma or some interaction between
+ * IDE and sound.  However, this measure would deal with DEAD status if
+ * it appeared elsewhere.
+ */
+static struct pmac_dbdma emergency_dbdma;
+static int emergency_in_use;
+
+
+/*
+ * allocate DBDMA command arrays
+ */
+static int snd_pmac_dbdma_alloc(struct snd_pmac *chip, struct pmac_dbdma *rec, int size)
+{
+	unsigned int rsize = sizeof(struct dbdma_cmd) * (size + 1);
+
+	rec->space = dma_alloc_coherent(&chip->pdev->dev, rsize,
+					&rec->dma_base, GFP_KERNEL);
+	if (rec->space == NULL)
+		return -ENOMEM;
+	rec->size = size;
+	memset(rec->space, 0, rsize);
+	rec->cmds = (void __iomem *)DBDMA_ALIGN(rec->space);
+	rec->addr = rec->dma_base + (unsigned long)((char *)rec->cmds - (char *)rec->space);
+
+	return 0;
+}
+
+static void snd_pmac_dbdma_free(struct snd_pmac *chip, struct pmac_dbdma *rec)
+{
+	if (rec->space) {
+		unsigned int rsize = sizeof(struct dbdma_cmd) * (rec->size + 1);
+
+		dma_free_coherent(&chip->pdev->dev, rsize, rec->space, rec->dma_base);
+	}
+}
+
+
+/*
+ * pcm stuff
+ */
+
+/*
+ * look up frequency table
+ */
+
+unsigned int snd_pmac_rate_index(struct snd_pmac *chip, struct pmac_stream *rec, unsigned int rate)
+{
+	int i, ok, found;
+
+	ok = rec->cur_freqs;
+	if (rate > chip->freq_table[0])
+		return 0;
+	found = 0;
+	for (i = 0; i < chip->num_freqs; i++, ok >>= 1) {
+		if (! (ok & 1)) continue;
+		found = i;
+		if (rate >= chip->freq_table[i])
+			break;
+	}
+	return found;
+}
+
+/*
+ * check whether another stream is active
+ */
+static inline int another_stream(int stream)
+{
+	return (stream == SNDRV_PCM_STREAM_PLAYBACK) ?
+		SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK;
+}
+
+/*
+ * allocate buffers
+ */
+static int snd_pmac_pcm_hw_params(struct snd_pcm_substream *subs,
+				  struct snd_pcm_hw_params *hw_params)
+{
+	return snd_pcm_lib_malloc_pages(subs, params_buffer_bytes(hw_params));
+}
+
+/*
+ * release buffers
+ */
+static int snd_pmac_pcm_hw_free(struct snd_pcm_substream *subs)
+{
+	snd_pcm_lib_free_pages(subs);
+	return 0;
+}
+
+/*
+ * get a stream of the opposite direction
+ */
+static struct pmac_stream *snd_pmac_get_stream(struct snd_pmac *chip, int stream)
+{
+	switch (stream) {
+	case SNDRV_PCM_STREAM_PLAYBACK:
+		return &chip->playback;
+	case SNDRV_PCM_STREAM_CAPTURE:
+		return &chip->capture;
+	default:
+		snd_BUG();
+		return NULL;
+	}
+}
+
+/*
+ * wait while run status is on
+ */
+static inline void
+snd_pmac_wait_ack(struct pmac_stream *rec)
+{
+	int timeout = 50000;
+	while ((in_le32(&rec->dma->status) & RUN) && timeout-- > 0)
+		udelay(1);
+}
+
+/*
+ * set the format and rate to the chip.
+ * call the lowlevel function if defined (e.g. for AWACS).
+ */
+static void snd_pmac_pcm_set_format(struct snd_pmac *chip)
+{
+	/* set up frequency and format */
+	out_le32(&chip->awacs->control, chip->control_mask | (chip->rate_index << 8));
+	out_le32(&chip->awacs->byteswap, chip->format == SNDRV_PCM_FORMAT_S16_LE ? 1 : 0);
+	if (chip->set_format)
+		chip->set_format(chip);
+}
+
+/*
+ * stop the DMA transfer
+ */
+static inline void snd_pmac_dma_stop(struct pmac_stream *rec)
+{
+	out_le32(&rec->dma->control, (RUN|WAKE|FLUSH|PAUSE) << 16);
+	snd_pmac_wait_ack(rec);
+}
+
+/*
+ * set the command pointer address
+ */
+static inline void snd_pmac_dma_set_command(struct pmac_stream *rec, struct pmac_dbdma *cmd)
+{
+	out_le32(&rec->dma->cmdptr, cmd->addr);
+}
+
+/*
+ * start the DMA
+ */
+static inline void snd_pmac_dma_run(struct pmac_stream *rec, int status)
+{
+	out_le32(&rec->dma->control, status | (status << 16));
+}
+
+
+/*
+ * prepare playback/capture stream
+ */
+static int snd_pmac_pcm_prepare(struct snd_pmac *chip, struct pmac_stream *rec, struct snd_pcm_substream *subs)
+{
+	int i;
+	volatile struct dbdma_cmd __iomem *cp;
+	struct snd_pcm_runtime *runtime = subs->runtime;
+	int rate_index;
+	long offset;
+	struct pmac_stream *astr;
+
+	rec->dma_size = snd_pcm_lib_buffer_bytes(subs);
+	rec->period_size = snd_pcm_lib_period_bytes(subs);
+	rec->nperiods = rec->dma_size / rec->period_size;
+	rec->cur_period = 0;
+	rate_index = snd_pmac_rate_index(chip, rec, runtime->rate);
+
+	/* set up constraints */
+	astr = snd_pmac_get_stream(chip, another_stream(rec->stream));
+	if (! astr)
+		return -EINVAL;
+	astr->cur_freqs = 1 << rate_index;
+	astr->cur_formats = 1 << runtime->format;
+	chip->rate_index = rate_index;
+	chip->format = runtime->format;
+
+	/* We really want to execute a DMA stop command, after the AWACS
+	 * is initialized.
+	 * For reasons I don't understand, it stops the hissing noise
+	 * common to many PowerBook G3 systems and random noise otherwise
+	 * captured on iBook2's about every third time. -ReneR
+	 */
+	spin_lock_irq(&chip->reg_lock);
+	snd_pmac_dma_stop(rec);
+	chip->extra_dma.cmds->command = cpu_to_le16(DBDMA_STOP);
+	snd_pmac_dma_set_command(rec, &chip->extra_dma);
+	snd_pmac_dma_run(rec, RUN);
+	spin_unlock_irq(&chip->reg_lock);
+	mdelay(5);
+	spin_lock_irq(&chip->reg_lock);
+	/* continuous DMA memory type doesn't provide the physical address,
+	 * so we need to resolve the address here...
+	 */
+	offset = runtime->dma_addr;
+	for (i = 0, cp = rec->cmd.cmds; i < rec->nperiods; i++, cp++) {
+		cp->phy_addr = cpu_to_le32(offset);
+		cp->req_count = cpu_to_le16(rec->period_size);
+		/*cp->res_count = cpu_to_le16(0);*/
+		cp->xfer_status = cpu_to_le16(0);
+		offset += rec->period_size;
+	}
+	/* make loop */
+	cp->command = cpu_to_le16(DBDMA_NOP + BR_ALWAYS);
+	cp->cmd_dep = cpu_to_le32(rec->cmd.addr);
+
+	snd_pmac_dma_stop(rec);
+	snd_pmac_dma_set_command(rec, &rec->cmd);
+	spin_unlock_irq(&chip->reg_lock);
+
+	return 0;
+}
+
+
+/*
+ * PCM trigger/stop
+ */
+static int snd_pmac_pcm_trigger(struct snd_pmac *chip, struct pmac_stream *rec,
+				struct snd_pcm_substream *subs, int cmd)
+{
+	volatile struct dbdma_cmd __iomem *cp;
+	int i, command;
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+	case SNDRV_PCM_TRIGGER_RESUME:
+		if (rec->running)
+			return -EBUSY;
+		command = (subs->stream == SNDRV_PCM_STREAM_PLAYBACK ?
+			   OUTPUT_MORE : INPUT_MORE) + INTR_ALWAYS;
+		spin_lock(&chip->reg_lock);
+		snd_pmac_beep_stop(chip);
+		snd_pmac_pcm_set_format(chip);
+		for (i = 0, cp = rec->cmd.cmds; i < rec->nperiods; i++, cp++)
+			out_le16(&cp->command, command);
+		snd_pmac_dma_set_command(rec, &rec->cmd);
+		(void)in_le32(&rec->dma->status);
+		snd_pmac_dma_run(rec, RUN|WAKE);
+		rec->running = 1;
+		spin_unlock(&chip->reg_lock);
+		break;
+
+	case SNDRV_PCM_TRIGGER_STOP:
+	case SNDRV_PCM_TRIGGER_SUSPEND:
+		spin_lock(&chip->reg_lock);
+		rec->running = 0;
+		/*printk(KERN_DEBUG "stopped!!\n");*/
+		snd_pmac_dma_stop(rec);
+		for (i = 0, cp = rec->cmd.cmds; i < rec->nperiods; i++, cp++)
+			out_le16(&cp->command, DBDMA_STOP);
+		spin_unlock(&chip->reg_lock);
+		break;
+
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+/*
+ * return the current pointer
+ */
+inline
+static snd_pcm_uframes_t snd_pmac_pcm_pointer(struct snd_pmac *chip,
+					      struct pmac_stream *rec,
+					      struct snd_pcm_substream *subs)
+{
+	int count = 0;
+
+#if 1 /* hmm.. how can we get the current dma pointer?? */
+	int stat;
+	volatile struct dbdma_cmd __iomem *cp = &rec->cmd.cmds[rec->cur_period];
+	stat = le16_to_cpu(cp->xfer_status);
+	if (stat & (ACTIVE|DEAD)) {
+		count = in_le16(&cp->res_count);
+		if (count)
+			count = rec->period_size - count;
+	}
+#endif
+	count += rec->cur_period * rec->period_size;
+	/*printk(KERN_DEBUG "pointer=%d\n", count);*/
+	return bytes_to_frames(subs->runtime, count);
+}
+
+/*
+ * playback
+ */
+
+static int snd_pmac_playback_prepare(struct snd_pcm_substream *subs)
+{
+	struct snd_pmac *chip = snd_pcm_substream_chip(subs);
+	return snd_pmac_pcm_prepare(chip, &chip->playback, subs);
+}
+
+static int snd_pmac_playback_trigger(struct snd_pcm_substream *subs,
+				     int cmd)
+{
+	struct snd_pmac *chip = snd_pcm_substream_chip(subs);
+	return snd_pmac_pcm_trigger(chip, &chip->playback, subs, cmd);
+}
+
+static snd_pcm_uframes_t snd_pmac_playback_pointer(struct snd_pcm_substream *subs)
+{
+	struct snd_pmac *chip = snd_pcm_substream_chip(subs);
+	return snd_pmac_pcm_pointer(chip, &chip->playback, subs);
+}
+
+
+/*
+ * capture
+ */
+
+static int snd_pmac_capture_prepare(struct snd_pcm_substream *subs)
+{
+	struct snd_pmac *chip = snd_pcm_substream_chip(subs);
+	return snd_pmac_pcm_prepare(chip, &chip->capture, subs);
+}
+
+static int snd_pmac_capture_trigger(struct snd_pcm_substream *subs,
+				    int cmd)
+{
+	struct snd_pmac *chip = snd_pcm_substream_chip(subs);
+	return snd_pmac_pcm_trigger(chip, &chip->capture, subs, cmd);
+}
+
+static snd_pcm_uframes_t snd_pmac_capture_pointer(struct snd_pcm_substream *subs)
+{
+	struct snd_pmac *chip = snd_pcm_substream_chip(subs);
+	return snd_pmac_pcm_pointer(chip, &chip->capture, subs);
+}
+
+
+/*
+ * Handle DEAD DMA transfers:
+ * if the TX status comes up "DEAD" - reported on some Power Computing machines
+ * we need to re-start the dbdma - but from a different physical start address
+ * and with a different transfer length.  It would get very messy to do this
+ * with the normal dbdma_cmd blocks - we would have to re-write the buffer start
+ * addresses each time.  So, we will keep a single dbdma_cmd block which can be
+ * fiddled with.
+ * When DEAD status is first reported the content of the faulted dbdma block is
+ * copied into the emergency buffer and we note that the buffer is in use.
+ * we then bump the start physical address by the amount that was successfully
+ * output before it died.
+ * On any subsequent DEAD result we just do the bump-ups (we know that we are
+ * already using the emergency dbdma_cmd).
+ * CHECK: this just tries to "do it".  It is possible that we should abandon
+ * xfers when the number of residual bytes gets below a certain value - I can
+ * see that this might cause a loop-forever if a too small transfer causes
+ * DEAD status.  However this is a TODO for now - we'll see what gets reported.
+ * When we get a successful transfer result with the emergency buffer we just
+ * pretend that it completed using the original dmdma_cmd and carry on.  The
+ * 'next_cmd' field will already point back to the original loop of blocks.
+ */
+static inline void snd_pmac_pcm_dead_xfer(struct pmac_stream *rec,
+					  volatile struct dbdma_cmd __iomem *cp)
+{
+	unsigned short req, res ;
+	unsigned int phy ;
+
+	/* printk(KERN_WARNING "snd-powermac: DMA died - patching it up!\n"); */
+
+	/* to clear DEAD status we must first clear RUN
+	   set it to quiescent to be on the safe side */
+	(void)in_le32(&rec->dma->status);
+	out_le32(&rec->dma->control, (RUN|PAUSE|FLUSH|WAKE) << 16);
+
+	if (!emergency_in_use) { /* new problem */
+		memcpy((void *)emergency_dbdma.cmds, (void *)cp,
+		       sizeof(struct dbdma_cmd));
+		emergency_in_use = 1;
+		cp->xfer_status = cpu_to_le16(0);
+		cp->req_count = cpu_to_le16(rec->period_size);
+		cp = emergency_dbdma.cmds;
+	}
+
+	/* now bump the values to reflect the amount
+	   we haven't yet shifted */
+	req = le16_to_cpu(cp->req_count);
+	res = le16_to_cpu(cp->res_count);
+	phy = le32_to_cpu(cp->phy_addr);
+	phy += (req - res);
+	cp->req_count = cpu_to_le16(res);
+	cp->res_count = cpu_to_le16(0);
+	cp->xfer_status = cpu_to_le16(0);
+	cp->phy_addr = cpu_to_le32(phy);
+
+	cp->cmd_dep = cpu_to_le32(rec->cmd.addr
+		+ sizeof(struct dbdma_cmd)*((rec->cur_period+1)%rec->nperiods));
+
+	cp->command = cpu_to_le16(OUTPUT_MORE | BR_ALWAYS | INTR_ALWAYS);
+
+	/* point at our patched up command block */
+	out_le32(&rec->dma->cmdptr, emergency_dbdma.addr);
+
+	/* we must re-start the controller */
+	(void)in_le32(&rec->dma->status);
+	/* should complete clearing the DEAD status */
+	out_le32(&rec->dma->control, ((RUN|WAKE) << 16) + (RUN|WAKE));
+}
+
+/*
+ * update playback/capture pointer from interrupts
+ */
+static void snd_pmac_pcm_update(struct snd_pmac *chip, struct pmac_stream *rec)
+{
+	volatile struct dbdma_cmd __iomem *cp;
+	int c;
+	int stat;
+
+	spin_lock(&chip->reg_lock);
+	if (rec->running) {
+		for (c = 0; c < rec->nperiods; c++) { /* at most all fragments */
+
+			if (emergency_in_use)   /* already using DEAD xfer? */
+				cp = emergency_dbdma.cmds;
+			else
+				cp = &rec->cmd.cmds[rec->cur_period];
+
+			stat = le16_to_cpu(cp->xfer_status);
+
+			if (stat & DEAD) {
+				snd_pmac_pcm_dead_xfer(rec, cp);
+				break; /* this block is still going */
+			}
+
+			if (emergency_in_use)
+				emergency_in_use = 0 ; /* done that */
+
+			if (! (stat & ACTIVE))
+				break;
+
+			/*printk(KERN_DEBUG "update frag %d\n", rec->cur_period);*/
+			cp->xfer_status = cpu_to_le16(0);
+			cp->req_count = cpu_to_le16(rec->period_size);
+			/*cp->res_count = cpu_to_le16(0);*/
+			rec->cur_period++;
+			if (rec->cur_period >= rec->nperiods) {
+				rec->cur_period = 0;
+			}
+
+			spin_unlock(&chip->reg_lock);
+			snd_pcm_period_elapsed(rec->substream);
+			spin_lock(&chip->reg_lock);
+		}
+	}
+	spin_unlock(&chip->reg_lock);
+}
+
+
+/*
+ * hw info
+ */
+
+static const struct snd_pcm_hardware snd_pmac_playback =
+{
+	.info =			(SNDRV_PCM_INFO_INTERLEAVED |
+				 SNDRV_PCM_INFO_MMAP |
+				 SNDRV_PCM_INFO_MMAP_VALID |
+				 SNDRV_PCM_INFO_RESUME),
+	.formats =		SNDRV_PCM_FMTBIT_S16_BE | SNDRV_PCM_FMTBIT_S16_LE,
+	.rates =		SNDRV_PCM_RATE_8000_44100,
+	.rate_min =		7350,
+	.rate_max =		44100,
+	.channels_min =		2,
+	.channels_max =		2,
+	.buffer_bytes_max =	131072,
+	.period_bytes_min =	256,
+	.period_bytes_max =	16384,
+	.periods_min =		3,
+	.periods_max =		PMAC_MAX_FRAGS,
+};
+
+static const struct snd_pcm_hardware snd_pmac_capture =
+{
+	.info =			(SNDRV_PCM_INFO_INTERLEAVED |
+				 SNDRV_PCM_INFO_MMAP |
+				 SNDRV_PCM_INFO_MMAP_VALID |
+				 SNDRV_PCM_INFO_RESUME),
+	.formats =		SNDRV_PCM_FMTBIT_S16_BE | SNDRV_PCM_FMTBIT_S16_LE,
+	.rates =		SNDRV_PCM_RATE_8000_44100,
+	.rate_min =		7350,
+	.rate_max =		44100,
+	.channels_min =		2,
+	.channels_max =		2,
+	.buffer_bytes_max =	131072,
+	.period_bytes_min =	256,
+	.period_bytes_max =	16384,
+	.periods_min =		3,
+	.periods_max =		PMAC_MAX_FRAGS,
+};
+
+
+#if 0 // NYI
+static int snd_pmac_hw_rule_rate(struct snd_pcm_hw_params *params,
+				 struct snd_pcm_hw_rule *rule)
+{
+	struct snd_pmac *chip = rule->private;
+	struct pmac_stream *rec = snd_pmac_get_stream(chip, rule->deps[0]);
+	int i, freq_table[8], num_freqs;
+
+	if (! rec)
+		return -EINVAL;
+	num_freqs = 0;
+	for (i = chip->num_freqs - 1; i >= 0; i--) {
+		if (rec->cur_freqs & (1 << i))
+			freq_table[num_freqs++] = chip->freq_table[i];
+	}
+
+	return snd_interval_list(hw_param_interval(params, rule->var),
+				 num_freqs, freq_table, 0);
+}
+
+static int snd_pmac_hw_rule_format(struct snd_pcm_hw_params *params,
+				   struct snd_pcm_hw_rule *rule)
+{
+	struct snd_pmac *chip = rule->private;
+	struct pmac_stream *rec = snd_pmac_get_stream(chip, rule->deps[0]);
+
+	if (! rec)
+		return -EINVAL;
+	return snd_mask_refine_set(hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT),
+				   rec->cur_formats);
+}
+#endif // NYI
+
+static int snd_pmac_pcm_open(struct snd_pmac *chip, struct pmac_stream *rec,
+			     struct snd_pcm_substream *subs)
+{
+	struct snd_pcm_runtime *runtime = subs->runtime;
+	int i;
+
+	/* look up frequency table and fill bit mask */
+	runtime->hw.rates = 0;
+	for (i = 0; i < chip->num_freqs; i++)
+		if (chip->freqs_ok & (1 << i))
+			runtime->hw.rates |=
+				snd_pcm_rate_to_rate_bit(chip->freq_table[i]);
+
+	/* check for minimum and maximum rates */
+	for (i = 0; i < chip->num_freqs; i++) {
+		if (chip->freqs_ok & (1 << i)) {
+			runtime->hw.rate_max = chip->freq_table[i];
+			break;
+		}
+	}
+	for (i = chip->num_freqs - 1; i >= 0; i--) {
+		if (chip->freqs_ok & (1 << i)) {
+			runtime->hw.rate_min = chip->freq_table[i];
+			break;
+		}
+	}
+	runtime->hw.formats = chip->formats_ok;
+	if (chip->can_capture) {
+		if (! chip->can_duplex)
+			runtime->hw.info |= SNDRV_PCM_INFO_HALF_DUPLEX;
+		runtime->hw.info |= SNDRV_PCM_INFO_JOINT_DUPLEX;
+	}
+	runtime->private_data = rec;
+	rec->substream = subs;
+
+#if 0 /* FIXME: still under development.. */
+	snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
+			    snd_pmac_hw_rule_rate, chip, rec->stream, -1);
+	snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_FORMAT,
+			    snd_pmac_hw_rule_format, chip, rec->stream, -1);
+#endif
+
+	runtime->hw.periods_max = rec->cmd.size - 1;
+
+	/* constraints to fix choppy sound */
+	snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
+	return 0;
+}
+
+static int snd_pmac_pcm_close(struct snd_pmac *chip, struct pmac_stream *rec,
+			      struct snd_pcm_substream *subs)
+{
+	struct pmac_stream *astr;
+
+	snd_pmac_dma_stop(rec);
+
+	astr = snd_pmac_get_stream(chip, another_stream(rec->stream));
+	if (! astr)
+		return -EINVAL;
+
+	/* reset constraints */
+	astr->cur_freqs = chip->freqs_ok;
+	astr->cur_formats = chip->formats_ok;
+
+	return 0;
+}
+
+static int snd_pmac_playback_open(struct snd_pcm_substream *subs)
+{
+	struct snd_pmac *chip = snd_pcm_substream_chip(subs);
+
+	subs->runtime->hw = snd_pmac_playback;
+	return snd_pmac_pcm_open(chip, &chip->playback, subs);
+}
+
+static int snd_pmac_capture_open(struct snd_pcm_substream *subs)
+{
+	struct snd_pmac *chip = snd_pcm_substream_chip(subs);
+
+	subs->runtime->hw = snd_pmac_capture;
+	return snd_pmac_pcm_open(chip, &chip->capture, subs);
+}
+
+static int snd_pmac_playback_close(struct snd_pcm_substream *subs)
+{
+	struct snd_pmac *chip = snd_pcm_substream_chip(subs);
+
+	return snd_pmac_pcm_close(chip, &chip->playback, subs);
+}
+
+static int snd_pmac_capture_close(struct snd_pcm_substream *subs)
+{
+	struct snd_pmac *chip = snd_pcm_substream_chip(subs);
+
+	return snd_pmac_pcm_close(chip, &chip->capture, subs);
+}
+
+/*
+ */
+
+static const struct snd_pcm_ops snd_pmac_playback_ops = {
+	.open =		snd_pmac_playback_open,
+	.close =	snd_pmac_playback_close,
+	.ioctl =	snd_pcm_lib_ioctl,
+	.hw_params =	snd_pmac_pcm_hw_params,
+	.hw_free =	snd_pmac_pcm_hw_free,
+	.prepare =	snd_pmac_playback_prepare,
+	.trigger =	snd_pmac_playback_trigger,
+	.pointer =	snd_pmac_playback_pointer,
+};
+
+static const struct snd_pcm_ops snd_pmac_capture_ops = {
+	.open =		snd_pmac_capture_open,
+	.close =	snd_pmac_capture_close,
+	.ioctl =	snd_pcm_lib_ioctl,
+	.hw_params =	snd_pmac_pcm_hw_params,
+	.hw_free =	snd_pmac_pcm_hw_free,
+	.prepare =	snd_pmac_capture_prepare,
+	.trigger =	snd_pmac_capture_trigger,
+	.pointer =	snd_pmac_capture_pointer,
+};
+
+int snd_pmac_pcm_new(struct snd_pmac *chip)
+{
+	struct snd_pcm *pcm;
+	int err;
+	int num_captures = 1;
+
+	if (! chip->can_capture)
+		num_captures = 0;
+	err = snd_pcm_new(chip->card, chip->card->driver, 0, 1, num_captures, &pcm);
+	if (err < 0)
+		return err;
+
+	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_pmac_playback_ops);
+	if (chip->can_capture)
+		snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_pmac_capture_ops);
+
+	pcm->private_data = chip;
+	pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX;
+	strcpy(pcm->name, chip->card->shortname);
+	chip->pcm = pcm;
+
+	chip->formats_ok = SNDRV_PCM_FMTBIT_S16_BE;
+	if (chip->can_byte_swap)
+		chip->formats_ok |= SNDRV_PCM_FMTBIT_S16_LE;
+
+	chip->playback.cur_formats = chip->formats_ok;
+	chip->capture.cur_formats = chip->formats_ok;
+	chip->playback.cur_freqs = chip->freqs_ok;
+	chip->capture.cur_freqs = chip->freqs_ok;
+
+	/* preallocate 64k buffer */
+	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
+					      &chip->pdev->dev,
+					      64 * 1024, 64 * 1024);
+
+	return 0;
+}
+
+
+static void snd_pmac_dbdma_reset(struct snd_pmac *chip)
+{
+	out_le32(&chip->playback.dma->control, (RUN|PAUSE|FLUSH|WAKE|DEAD) << 16);
+	snd_pmac_wait_ack(&chip->playback);
+	out_le32(&chip->capture.dma->control, (RUN|PAUSE|FLUSH|WAKE|DEAD) << 16);
+	snd_pmac_wait_ack(&chip->capture);
+}
+
+
+/*
+ * handling beep
+ */
+void snd_pmac_beep_dma_start(struct snd_pmac *chip, int bytes, unsigned long addr, int speed)
+{
+	struct pmac_stream *rec = &chip->playback;
+
+	snd_pmac_dma_stop(rec);
+	chip->extra_dma.cmds->req_count = cpu_to_le16(bytes);
+	chip->extra_dma.cmds->xfer_status = cpu_to_le16(0);
+	chip->extra_dma.cmds->cmd_dep = cpu_to_le32(chip->extra_dma.addr);
+	chip->extra_dma.cmds->phy_addr = cpu_to_le32(addr);
+	chip->extra_dma.cmds->command = cpu_to_le16(OUTPUT_MORE + BR_ALWAYS);
+	out_le32(&chip->awacs->control,
+		 (in_le32(&chip->awacs->control) & ~0x1f00)
+		 | (speed << 8));
+	out_le32(&chip->awacs->byteswap, 0);
+	snd_pmac_dma_set_command(rec, &chip->extra_dma);
+	snd_pmac_dma_run(rec, RUN);
+}
+
+void snd_pmac_beep_dma_stop(struct snd_pmac *chip)
+{
+	snd_pmac_dma_stop(&chip->playback);
+	chip->extra_dma.cmds->command = cpu_to_le16(DBDMA_STOP);
+	snd_pmac_pcm_set_format(chip); /* reset format */
+}
+
+
+/*
+ * interrupt handlers
+ */
+static irqreturn_t
+snd_pmac_tx_intr(int irq, void *devid)
+{
+	struct snd_pmac *chip = devid;
+	snd_pmac_pcm_update(chip, &chip->playback);
+	return IRQ_HANDLED;
+}
+
+
+static irqreturn_t
+snd_pmac_rx_intr(int irq, void *devid)
+{
+	struct snd_pmac *chip = devid;
+	snd_pmac_pcm_update(chip, &chip->capture);
+	return IRQ_HANDLED;
+}
+
+
+static irqreturn_t
+snd_pmac_ctrl_intr(int irq, void *devid)
+{
+	struct snd_pmac *chip = devid;
+	int ctrl = in_le32(&chip->awacs->control);
+
+	/*printk(KERN_DEBUG "pmac: control interrupt.. 0x%x\n", ctrl);*/
+	if (ctrl & MASK_PORTCHG) {
+		/* do something when headphone is plugged/unplugged? */
+		if (chip->update_automute)
+			chip->update_automute(chip, 1);
+	}
+	if (ctrl & MASK_CNTLERR) {
+		int err = (in_le32(&chip->awacs->codec_stat) & MASK_ERRCODE) >> 16;
+		if (err && chip->model <= PMAC_SCREAMER)
+			snd_printk(KERN_DEBUG "error %x\n", err);
+	}
+	/* Writing 1s to the CNTLERR and PORTCHG bits clears them... */
+	out_le32(&chip->awacs->control, ctrl);
+	return IRQ_HANDLED;
+}
+
+
+/*
+ * a wrapper to feature call for compatibility
+ */
+static void snd_pmac_sound_feature(struct snd_pmac *chip, int enable)
+{
+	if (ppc_md.feature_call)
+		ppc_md.feature_call(PMAC_FTR_SOUND_CHIP_ENABLE, chip->node, 0, enable);
+}
+
+/*
+ * release resources
+ */
+
+static int snd_pmac_free(struct snd_pmac *chip)
+{
+	/* stop sounds */
+	if (chip->initialized) {
+		snd_pmac_dbdma_reset(chip);
+		/* disable interrupts from awacs interface */
+		out_le32(&chip->awacs->control, in_le32(&chip->awacs->control) & 0xfff);
+	}
+
+	if (chip->node)
+		snd_pmac_sound_feature(chip, 0);
+
+	/* clean up mixer if any */
+	if (chip->mixer_free)
+		chip->mixer_free(chip);
+
+	snd_pmac_detach_beep(chip);
+
+	/* release resources */
+	if (chip->irq >= 0)
+		free_irq(chip->irq, (void*)chip);
+	if (chip->tx_irq >= 0)
+		free_irq(chip->tx_irq, (void*)chip);
+	if (chip->rx_irq >= 0)
+		free_irq(chip->rx_irq, (void*)chip);
+	snd_pmac_dbdma_free(chip, &chip->playback.cmd);
+	snd_pmac_dbdma_free(chip, &chip->capture.cmd);
+	snd_pmac_dbdma_free(chip, &chip->extra_dma);
+	snd_pmac_dbdma_free(chip, &emergency_dbdma);
+	iounmap(chip->macio_base);
+	iounmap(chip->latch_base);
+	iounmap(chip->awacs);
+	iounmap(chip->playback.dma);
+	iounmap(chip->capture.dma);
+
+	if (chip->node) {
+		int i;
+		for (i = 0; i < 3; i++) {
+			if (chip->requested & (1 << i))
+				release_mem_region(chip->rsrc[i].start,
+						   resource_size(&chip->rsrc[i]));
+		}
+	}
+
+	pci_dev_put(chip->pdev);
+	of_node_put(chip->node);
+	kfree(chip);
+	return 0;
+}
+
+
+/*
+ * free the device
+ */
+static int snd_pmac_dev_free(struct snd_device *device)
+{
+	struct snd_pmac *chip = device->device_data;
+	return snd_pmac_free(chip);
+}
+
+
+/*
+ * check the machine support byteswap (little-endian)
+ */
+
+static void detect_byte_swap(struct snd_pmac *chip)
+{
+	struct device_node *mio;
+
+	/* if seems that Keylargo can't byte-swap  */
+	for (mio = chip->node->parent; mio; mio = mio->parent) {
+		if (strcmp(mio->name, "mac-io") == 0) {
+			if (of_device_is_compatible(mio, "Keylargo"))
+				chip->can_byte_swap = 0;
+			break;
+		}
+	}
+
+	/* it seems the Pismo & iBook can't byte-swap in hardware. */
+	if (of_machine_is_compatible("PowerBook3,1") ||
+	    of_machine_is_compatible("PowerBook2,1"))
+		chip->can_byte_swap = 0 ;
+
+	if (of_machine_is_compatible("PowerBook2,1"))
+		chip->can_duplex = 0;
+}
+
+
+/*
+ * detect a sound chip
+ */
+static int snd_pmac_detect(struct snd_pmac *chip)
+{
+	struct device_node *sound;
+	struct device_node *dn;
+	const unsigned int *prop;
+	unsigned int l;
+	struct macio_chip* macio;
+
+	if (!machine_is(powermac))
+		return -ENODEV;
+
+	chip->subframe = 0;
+	chip->revision = 0;
+	chip->freqs_ok = 0xff; /* all ok */
+	chip->model = PMAC_AWACS;
+	chip->can_byte_swap = 1;
+	chip->can_duplex = 1;
+	chip->can_capture = 1;
+	chip->num_freqs = ARRAY_SIZE(awacs_freqs);
+	chip->freq_table = awacs_freqs;
+	chip->pdev = NULL;
+
+	chip->control_mask = MASK_IEPC | MASK_IEE | 0x11; /* default */
+
+	/* check machine type */
+	if (of_machine_is_compatible("AAPL,3400/2400")
+	    || of_machine_is_compatible("AAPL,3500"))
+		chip->is_pbook_3400 = 1;
+	else if (of_machine_is_compatible("PowerBook1,1")
+		 || of_machine_is_compatible("AAPL,PowerBook1998"))
+		chip->is_pbook_G3 = 1;
+	chip->node = of_find_node_by_name(NULL, "awacs");
+	sound = of_node_get(chip->node);
+
+	/*
+	 * powermac G3 models have a node called "davbus"
+	 * with a child called "sound".
+	 */
+	if (!chip->node)
+		chip->node = of_find_node_by_name(NULL, "davbus");
+	/*
+	 * if we didn't find a davbus device, try 'i2s-a' since
+	 * this seems to be what iBooks have
+	 */
+	if (! chip->node) {
+		chip->node = of_find_node_by_name(NULL, "i2s-a");
+		if (chip->node && chip->node->parent &&
+		    chip->node->parent->parent) {
+			if (of_device_is_compatible(chip->node->parent->parent,
+						 "K2-Keylargo"))
+				chip->is_k2 = 1;
+		}
+	}
+	if (! chip->node)
+		return -ENODEV;
+
+	if (!sound) {
+		for_each_node_by_name(sound, "sound")
+			if (sound->parent == chip->node)
+				break;
+	}
+	if (! sound) {
+		of_node_put(chip->node);
+		chip->node = NULL;
+		return -ENODEV;
+	}
+	prop = of_get_property(sound, "sub-frame", NULL);
+	if (prop && *prop < 16)
+		chip->subframe = *prop;
+	prop = of_get_property(sound, "layout-id", NULL);
+	if (prop) {
+		/* partly deprecate snd-powermac, for those machines
+		 * that have a layout-id property for now */
+		printk(KERN_INFO "snd-powermac no longer handles any "
+				 "machines with a layout-id property "
+				 "in the device-tree, use snd-aoa.\n");
+		of_node_put(sound);
+		of_node_put(chip->node);
+		chip->node = NULL;
+		return -ENODEV;
+	}
+	/* This should be verified on older screamers */
+	if (of_device_is_compatible(sound, "screamer")) {
+		chip->model = PMAC_SCREAMER;
+		// chip->can_byte_swap = 0; /* FIXME: check this */
+	}
+	if (of_device_is_compatible(sound, "burgundy")) {
+		chip->model = PMAC_BURGUNDY;
+		chip->control_mask = MASK_IEPC | 0x11; /* disable IEE */
+	}
+	if (of_device_is_compatible(sound, "daca")) {
+		chip->model = PMAC_DACA;
+		chip->can_capture = 0;  /* no capture */
+		chip->can_duplex = 0;
+		// chip->can_byte_swap = 0; /* FIXME: check this */
+		chip->control_mask = MASK_IEPC | 0x11; /* disable IEE */
+	}
+	if (of_device_is_compatible(sound, "tumbler")) {
+		chip->model = PMAC_TUMBLER;
+		chip->can_capture = of_machine_is_compatible("PowerMac4,2")
+				|| of_machine_is_compatible("PowerBook3,2")
+				|| of_machine_is_compatible("PowerBook3,3")
+				|| of_machine_is_compatible("PowerBook4,1")
+				|| of_machine_is_compatible("PowerBook4,2")
+				|| of_machine_is_compatible("PowerBook4,3");
+		chip->can_duplex = 0;
+		// chip->can_byte_swap = 0; /* FIXME: check this */
+		chip->num_freqs = ARRAY_SIZE(tumbler_freqs);
+		chip->freq_table = tumbler_freqs;
+		chip->control_mask = MASK_IEPC | 0x11; /* disable IEE */
+	}
+	if (of_device_is_compatible(sound, "snapper")) {
+		chip->model = PMAC_SNAPPER;
+		// chip->can_byte_swap = 0; /* FIXME: check this */
+		chip->num_freqs = ARRAY_SIZE(tumbler_freqs);
+		chip->freq_table = tumbler_freqs;
+		chip->control_mask = MASK_IEPC | 0x11; /* disable IEE */
+	}
+	prop = of_get_property(sound, "device-id", NULL);
+	if (prop)
+		chip->device_id = *prop;
+	dn = of_find_node_by_name(NULL, "perch");
+	chip->has_iic = (dn != NULL);
+	of_node_put(dn);
+
+	/* We need the PCI device for DMA allocations, let's use a crude method
+	 * for now ...
+	 */
+	macio = macio_find(chip->node, macio_unknown);
+	if (macio == NULL)
+		printk(KERN_WARNING "snd-powermac: can't locate macio !\n");
+	else {
+		struct pci_dev *pdev = NULL;
+
+		for_each_pci_dev(pdev) {
+			struct device_node *np = pci_device_to_OF_node(pdev);
+			if (np && np == macio->of_node) {
+				chip->pdev = pdev;
+				break;
+			}
+		}
+	}
+	if (chip->pdev == NULL)
+		printk(KERN_WARNING "snd-powermac: can't locate macio PCI"
+		       " device !\n");
+
+	detect_byte_swap(chip);
+
+	/* look for a property saying what sample rates
+	   are available */
+	prop = of_get_property(sound, "sample-rates", &l);
+	if (! prop)
+		prop = of_get_property(sound, "output-frame-rates", &l);
+	if (prop) {
+		int i;
+		chip->freqs_ok = 0;
+		for (l /= sizeof(int); l > 0; --l) {
+			unsigned int r = *prop++;
+			/* Apple 'Fixed' format */
+			if (r >= 0x10000)
+				r >>= 16;
+			for (i = 0; i < chip->num_freqs; ++i) {
+				if (r == chip->freq_table[i]) {
+					chip->freqs_ok |= (1 << i);
+					break;
+				}
+			}
+		}
+	} else {
+		/* assume only 44.1khz */
+		chip->freqs_ok = 1;
+	}
+
+	of_node_put(sound);
+	return 0;
+}
+
+#ifdef PMAC_SUPPORT_AUTOMUTE
+/*
+ * auto-mute
+ */
+static int pmac_auto_mute_get(struct snd_kcontrol *kcontrol,
+			      struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
+	ucontrol->value.integer.value[0] = chip->auto_mute;
+	return 0;
+}
+
+static int pmac_auto_mute_put(struct snd_kcontrol *kcontrol,
+			      struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
+	if (ucontrol->value.integer.value[0] != chip->auto_mute) {
+		chip->auto_mute = !!ucontrol->value.integer.value[0];
+		if (chip->update_automute)
+			chip->update_automute(chip, 1);
+		return 1;
+	}
+	return 0;
+}
+
+static int pmac_hp_detect_get(struct snd_kcontrol *kcontrol,
+			      struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
+	if (chip->detect_headphone)
+		ucontrol->value.integer.value[0] = chip->detect_headphone(chip);
+	else
+		ucontrol->value.integer.value[0] = 0;
+	return 0;
+}
+
+static struct snd_kcontrol_new auto_mute_controls[] = {
+	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+	  .name = "Auto Mute Switch",
+	  .info = snd_pmac_boolean_mono_info,
+	  .get = pmac_auto_mute_get,
+	  .put = pmac_auto_mute_put,
+	},
+	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+	  .name = "Headphone Detection",
+	  .access = SNDRV_CTL_ELEM_ACCESS_READ,
+	  .info = snd_pmac_boolean_mono_info,
+	  .get = pmac_hp_detect_get,
+	},
+};
+
+int snd_pmac_add_automute(struct snd_pmac *chip)
+{
+	int err;
+	chip->auto_mute = 1;
+	err = snd_ctl_add(chip->card, snd_ctl_new1(&auto_mute_controls[0], chip));
+	if (err < 0) {
+		printk(KERN_ERR "snd-powermac: Failed to add automute control\n");
+		return err;
+	}
+	chip->hp_detect_ctl = snd_ctl_new1(&auto_mute_controls[1], chip);
+	return snd_ctl_add(chip->card, chip->hp_detect_ctl);
+}
+#endif /* PMAC_SUPPORT_AUTOMUTE */
+
+/*
+ * create and detect a pmac chip record
+ */
+int snd_pmac_new(struct snd_card *card, struct snd_pmac **chip_return)
+{
+	struct snd_pmac *chip;
+	struct device_node *np;
+	int i, err;
+	unsigned int irq;
+	unsigned long ctrl_addr, txdma_addr, rxdma_addr;
+	static struct snd_device_ops ops = {
+		.dev_free =	snd_pmac_dev_free,
+	};
+
+	*chip_return = NULL;
+
+	chip = kzalloc(sizeof(*chip), GFP_KERNEL);
+	if (chip == NULL)
+		return -ENOMEM;
+	chip->card = card;
+
+	spin_lock_init(&chip->reg_lock);
+	chip->irq = chip->tx_irq = chip->rx_irq = -1;
+
+	chip->playback.stream = SNDRV_PCM_STREAM_PLAYBACK;
+	chip->capture.stream = SNDRV_PCM_STREAM_CAPTURE;
+
+	if ((err = snd_pmac_detect(chip)) < 0)
+		goto __error;
+
+	if (snd_pmac_dbdma_alloc(chip, &chip->playback.cmd, PMAC_MAX_FRAGS + 1) < 0 ||
+	    snd_pmac_dbdma_alloc(chip, &chip->capture.cmd, PMAC_MAX_FRAGS + 1) < 0 ||
+	    snd_pmac_dbdma_alloc(chip, &chip->extra_dma, 2) < 0 ||
+	    snd_pmac_dbdma_alloc(chip, &emergency_dbdma, 2) < 0) {
+		err = -ENOMEM;
+		goto __error;
+	}
+
+	np = chip->node;
+	chip->requested = 0;
+	if (chip->is_k2) {
+		static char *rnames[] = {
+			"Sound Control", "Sound DMA" };
+		for (i = 0; i < 2; i ++) {
+			if (of_address_to_resource(np->parent, i,
+						   &chip->rsrc[i])) {
+				printk(KERN_ERR "snd: can't translate rsrc "
+				       " %d (%s)\n", i, rnames[i]);
+				err = -ENODEV;
+				goto __error;
+			}
+			if (request_mem_region(chip->rsrc[i].start,
+					       resource_size(&chip->rsrc[i]),
+					       rnames[i]) == NULL) {
+				printk(KERN_ERR "snd: can't request rsrc "
+				       " %d (%s: %pR)\n",
+				       i, rnames[i], &chip->rsrc[i]);
+				err = -ENODEV;
+				goto __error;
+			}
+			chip->requested |= (1 << i);
+		}
+		ctrl_addr = chip->rsrc[0].start;
+		txdma_addr = chip->rsrc[1].start;
+		rxdma_addr = txdma_addr + 0x100;
+	} else {
+		static char *rnames[] = {
+			"Sound Control", "Sound Tx DMA", "Sound Rx DMA" };
+		for (i = 0; i < 3; i ++) {
+			if (of_address_to_resource(np, i,
+						   &chip->rsrc[i])) {
+				printk(KERN_ERR "snd: can't translate rsrc "
+				       " %d (%s)\n", i, rnames[i]);
+				err = -ENODEV;
+				goto __error;
+			}
+			if (request_mem_region(chip->rsrc[i].start,
+					       resource_size(&chip->rsrc[i]),
+					       rnames[i]) == NULL) {
+				printk(KERN_ERR "snd: can't request rsrc "
+				       " %d (%s: %pR)\n",
+				       i, rnames[i], &chip->rsrc[i]);
+				err = -ENODEV;
+				goto __error;
+			}
+			chip->requested |= (1 << i);
+		}
+		ctrl_addr = chip->rsrc[0].start;
+		txdma_addr = chip->rsrc[1].start;
+		rxdma_addr = chip->rsrc[2].start;
+	}
+
+	chip->awacs = ioremap(ctrl_addr, 0x1000);
+	chip->playback.dma = ioremap(txdma_addr, 0x100);
+	chip->capture.dma = ioremap(rxdma_addr, 0x100);
+	if (chip->model <= PMAC_BURGUNDY) {
+		irq = irq_of_parse_and_map(np, 0);
+		if (request_irq(irq, snd_pmac_ctrl_intr, 0,
+				"PMac", (void*)chip)) {
+			snd_printk(KERN_ERR "pmac: unable to grab IRQ %d\n",
+				   irq);
+			err = -EBUSY;
+			goto __error;
+		}
+		chip->irq = irq;
+	}
+	irq = irq_of_parse_and_map(np, 1);
+	if (request_irq(irq, snd_pmac_tx_intr, 0, "PMac Output", (void*)chip)){
+		snd_printk(KERN_ERR "pmac: unable to grab IRQ %d\n", irq);
+		err = -EBUSY;
+		goto __error;
+	}
+	chip->tx_irq = irq;
+	irq = irq_of_parse_and_map(np, 2);
+	if (request_irq(irq, snd_pmac_rx_intr, 0, "PMac Input", (void*)chip)) {
+		snd_printk(KERN_ERR "pmac: unable to grab IRQ %d\n", irq);
+		err = -EBUSY;
+		goto __error;
+	}
+	chip->rx_irq = irq;
+
+	snd_pmac_sound_feature(chip, 1);
+
+	/* reset & enable interrupts */
+	if (chip->model <= PMAC_BURGUNDY)
+		out_le32(&chip->awacs->control, chip->control_mask);
+
+	/* Powerbooks have odd ways of enabling inputs such as
+	   an expansion-bay CD or sound from an internal modem
+	   or a PC-card modem. */
+	if (chip->is_pbook_3400) {
+		/* Enable CD and PC-card sound inputs. */
+		/* This is done by reading from address
+		 * f301a000, + 0x10 to enable the expansion-bay
+		 * CD sound input, + 0x80 to enable the PC-card
+		 * sound input.  The 0x100 enables the SCSI bus
+		 * terminator power.
+		 */
+		chip->latch_base = ioremap (0xf301a000, 0x1000);
+		in_8(chip->latch_base + 0x190);
+	} else if (chip->is_pbook_G3) {
+		struct device_node* mio;
+		for (mio = chip->node->parent; mio; mio = mio->parent) {
+			if (strcmp(mio->name, "mac-io") == 0) {
+				struct resource r;
+				if (of_address_to_resource(mio, 0, &r) == 0)
+					chip->macio_base =
+						ioremap(r.start, 0x40);
+				break;
+			}
+		}
+		/* Enable CD sound input. */
+		/* The relevant bits for writing to this byte are 0x8f.
+		 * I haven't found out what the 0x80 bit does.
+		 * For the 0xf bits, writing 3 or 7 enables the CD
+		 * input, any other value disables it.  Values
+		 * 1, 3, 5, 7 enable the microphone.  Values 0, 2,
+		 * 4, 6, 8 - f enable the input from the modem.
+		 */
+		if (chip->macio_base)
+			out_8(chip->macio_base + 0x37, 3);
+	}
+
+	/* Reset dbdma channels */
+	snd_pmac_dbdma_reset(chip);
+
+	if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0)
+		goto __error;
+
+	*chip_return = chip;
+	return 0;
+
+ __error:
+	snd_pmac_free(chip);
+	return err;
+}
+
+
+/*
+ * sleep notify for powerbook
+ */
+
+#ifdef CONFIG_PM
+
+/*
+ * Save state when going to sleep, restore it afterwards.
+ */
+
+void snd_pmac_suspend(struct snd_pmac *chip)
+{
+	unsigned long flags;
+
+	snd_power_change_state(chip->card, SNDRV_CTL_POWER_D3hot);
+	if (chip->suspend)
+		chip->suspend(chip);
+	snd_pcm_suspend_all(chip->pcm);
+	spin_lock_irqsave(&chip->reg_lock, flags);
+	snd_pmac_beep_stop(chip);
+	spin_unlock_irqrestore(&chip->reg_lock, flags);
+	if (chip->irq >= 0)
+		disable_irq(chip->irq);
+	if (chip->tx_irq >= 0)
+		disable_irq(chip->tx_irq);
+	if (chip->rx_irq >= 0)
+		disable_irq(chip->rx_irq);
+	snd_pmac_sound_feature(chip, 0);
+}
+
+void snd_pmac_resume(struct snd_pmac *chip)
+{
+	snd_pmac_sound_feature(chip, 1);
+	if (chip->resume)
+		chip->resume(chip);
+	/* enable CD sound input */
+	if (chip->macio_base && chip->is_pbook_G3)
+		out_8(chip->macio_base + 0x37, 3);
+	else if (chip->is_pbook_3400)
+		in_8(chip->latch_base + 0x190);
+
+	snd_pmac_pcm_set_format(chip);
+
+	if (chip->irq >= 0)
+		enable_irq(chip->irq);
+	if (chip->tx_irq >= 0)
+		enable_irq(chip->tx_irq);
+	if (chip->rx_irq >= 0)
+		enable_irq(chip->rx_irq);
+
+	snd_power_change_state(chip->card, SNDRV_CTL_POWER_D0);
+}
+
+#endif /* CONFIG_PM */
+
diff --git a/src/kernel/linux/v4.14/sound/ppc/pmac.h b/src/kernel/linux/v4.14/sound/ppc/pmac.h
new file mode 100644
index 0000000..25c512c
--- /dev/null
+++ b/src/kernel/linux/v4.14/sound/ppc/pmac.h
@@ -0,0 +1,210 @@
+/*
+ * Driver for PowerMac onboard soundchips
+ * Copyright (c) 2001 by Takashi Iwai <tiwai@suse.de>
+ *   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
+ */
+
+
+#ifndef __PMAC_H
+#define __PMAC_H
+
+#include <sound/control.h>
+#include <sound/pcm.h>
+#include "awacs.h"
+
+#include <linux/adb.h>
+#ifdef CONFIG_ADB_CUDA
+#include <linux/cuda.h>
+#endif
+#ifdef CONFIG_ADB_PMU
+#include <linux/pmu.h>
+#endif
+#include <linux/nvram.h>
+#include <linux/tty.h>
+#include <linux/vt_kern.h>
+#include <asm/dbdma.h>
+#include <asm/prom.h>
+#include <asm/machdep.h>
+
+/* maximum number of fragments */
+#define PMAC_MAX_FRAGS		32
+
+
+#define PMAC_SUPPORT_AUTOMUTE
+
+/*
+ * DBDMA space
+ */
+struct pmac_dbdma {
+	dma_addr_t dma_base;
+	dma_addr_t addr;
+	struct dbdma_cmd __iomem *cmds;
+	void *space;
+	int size;
+};
+
+/*
+ * playback/capture stream
+ */
+struct pmac_stream {
+	int running;	/* boolean */
+
+	int stream;	/* PLAYBACK/CAPTURE */
+
+	int dma_size; /* in bytes */
+	int period_size; /* in bytes */
+	int buffer_size; /* in kbytes */
+	int nperiods, cur_period;
+
+	struct pmac_dbdma cmd;
+	volatile struct dbdma_regs __iomem *dma;
+
+	struct snd_pcm_substream *substream;
+
+	unsigned int cur_freqs;		/* currently available frequencies */
+	unsigned int cur_formats;	/* currently available formats */
+};
+
+
+/*
+ */
+
+enum snd_pmac_model {
+	PMAC_AWACS, PMAC_SCREAMER, PMAC_BURGUNDY, PMAC_DACA, PMAC_TUMBLER,
+	PMAC_SNAPPER
+};
+
+struct snd_pmac {
+	struct snd_card *card;
+
+	/* h/w info */
+	struct device_node *node;
+	struct pci_dev *pdev;
+	unsigned int revision;
+	unsigned int manufacturer;
+	unsigned int subframe;
+	unsigned int device_id;
+	enum snd_pmac_model model;
+
+	unsigned int has_iic : 1;
+	unsigned int is_pbook_3400 : 1;
+	unsigned int is_pbook_G3 : 1;
+	unsigned int is_k2 : 1;
+
+	unsigned int can_byte_swap : 1;
+	unsigned int can_duplex : 1;
+	unsigned int can_capture : 1;
+
+	unsigned int auto_mute : 1;
+	unsigned int initialized : 1;
+	unsigned int feature_is_set : 1;
+
+	unsigned int requested;
+	struct resource rsrc[3];
+
+	int num_freqs;
+	int *freq_table;
+	unsigned int freqs_ok;		/* bit flags */
+	unsigned int formats_ok;	/* pcm hwinfo */
+	int active;
+	int rate_index;
+	int format;			/* current format */
+
+	spinlock_t reg_lock;
+	volatile struct awacs_regs __iomem *awacs;
+	int awacs_reg[8]; /* register cache */
+	unsigned int hp_stat_mask;
+
+	unsigned char __iomem *latch_base;
+	unsigned char __iomem *macio_base;
+
+	struct pmac_stream playback;
+	struct pmac_stream capture;
+
+	struct pmac_dbdma extra_dma;
+
+	int irq, tx_irq, rx_irq;
+
+	struct snd_pcm *pcm;
+
+	struct pmac_beep *beep;
+
+	unsigned int control_mask;	/* control mask */
+
+	/* mixer stuffs */
+	void *mixer_data;
+	void (*mixer_free)(struct snd_pmac *);
+	struct snd_kcontrol *master_sw_ctl;
+	struct snd_kcontrol *speaker_sw_ctl;
+	struct snd_kcontrol *drc_sw_ctl;	/* only used for tumbler -ReneR */
+	struct snd_kcontrol *hp_detect_ctl;
+	struct snd_kcontrol *lineout_sw_ctl;
+
+	/* lowlevel callbacks */
+	void (*set_format)(struct snd_pmac *chip);
+	void (*update_automute)(struct snd_pmac *chip, int do_notify);
+	int (*detect_headphone)(struct snd_pmac *chip);
+#ifdef CONFIG_PM
+	void (*suspend)(struct snd_pmac *chip);
+	void (*resume)(struct snd_pmac *chip);
+#endif
+
+};
+
+
+/* exported functions */
+int snd_pmac_new(struct snd_card *card, struct snd_pmac **chip_return);
+int snd_pmac_pcm_new(struct snd_pmac *chip);
+int snd_pmac_attach_beep(struct snd_pmac *chip);
+void snd_pmac_detach_beep(struct snd_pmac *chip);
+void snd_pmac_beep_stop(struct snd_pmac *chip);
+unsigned int snd_pmac_rate_index(struct snd_pmac *chip, struct pmac_stream *rec, unsigned int rate);
+
+void snd_pmac_beep_dma_start(struct snd_pmac *chip, int bytes, unsigned long addr, int speed);
+void snd_pmac_beep_dma_stop(struct snd_pmac *chip);
+
+#ifdef CONFIG_PM
+void snd_pmac_suspend(struct snd_pmac *chip);
+void snd_pmac_resume(struct snd_pmac *chip);
+#endif
+
+/* initialize mixer */
+int snd_pmac_awacs_init(struct snd_pmac *chip);
+int snd_pmac_burgundy_init(struct snd_pmac *chip);
+int snd_pmac_daca_init(struct snd_pmac *chip);
+int snd_pmac_tumbler_init(struct snd_pmac *chip);
+int snd_pmac_tumbler_post_init(void);
+
+/* i2c functions */
+struct pmac_keywest {
+	int addr;
+	struct i2c_client *client;
+	int id;
+	int (*init_client)(struct pmac_keywest *i2c);
+	char *name;
+};
+
+int snd_pmac_keywest_init(struct pmac_keywest *i2c);
+void snd_pmac_keywest_cleanup(struct pmac_keywest *i2c);
+
+/* misc */
+#define snd_pmac_boolean_stereo_info	snd_ctl_boolean_stereo_info
+#define snd_pmac_boolean_mono_info	snd_ctl_boolean_mono_info
+
+int snd_pmac_add_automute(struct snd_pmac *chip);
+
+#endif /* __PMAC_H */
diff --git a/src/kernel/linux/v4.14/sound/ppc/powermac.c b/src/kernel/linux/v4.14/sound/ppc/powermac.c
new file mode 100644
index 0000000..33c6be9
--- /dev/null
+++ b/src/kernel/linux/v4.14/sound/ppc/powermac.c
@@ -0,0 +1,194 @@
+/*
+ * Driver for PowerMac AWACS
+ * Copyright (c) 2001 by Takashi Iwai <tiwai@suse.de>
+ *   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 <linux/init.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
+#include <linux/module.h>
+#include <sound/core.h>
+#include <sound/initval.h>
+#include "pmac.h"
+#include "awacs.h"
+#include "burgundy.h"
+
+#define CHIP_NAME "PMac"
+
+MODULE_DESCRIPTION("PowerMac");
+MODULE_SUPPORTED_DEVICE("{{Apple,PowerMac}}");
+MODULE_LICENSE("GPL");
+
+static int index = SNDRV_DEFAULT_IDX1;		/* Index 0-MAX */
+static char *id = SNDRV_DEFAULT_STR1;		/* ID for this card */
+static bool enable_beep = 1;
+
+module_param(index, int, 0444);
+MODULE_PARM_DESC(index, "Index value for " CHIP_NAME " soundchip.");
+module_param(id, charp, 0444);
+MODULE_PARM_DESC(id, "ID string for " CHIP_NAME " soundchip.");
+module_param(enable_beep, bool, 0444);
+MODULE_PARM_DESC(enable_beep, "Enable beep using PCM.");
+
+static struct platform_device *device;
+
+
+/*
+ */
+
+static int snd_pmac_probe(struct platform_device *devptr)
+{
+	struct snd_card *card;
+	struct snd_pmac *chip;
+	char *name_ext;
+	int err;
+
+	err = snd_card_new(&devptr->dev, index, id, THIS_MODULE, 0, &card);
+	if (err < 0)
+		return err;
+
+	if ((err = snd_pmac_new(card, &chip)) < 0)
+		goto __error;
+	card->private_data = chip;
+
+	switch (chip->model) {
+	case PMAC_BURGUNDY:
+		strcpy(card->driver, "PMac Burgundy");
+		strcpy(card->shortname, "PowerMac Burgundy");
+		sprintf(card->longname, "%s (Dev %d) Sub-frame %d",
+			card->shortname, chip->device_id, chip->subframe);
+		if ((err = snd_pmac_burgundy_init(chip)) < 0)
+			goto __error;
+		break;
+	case PMAC_DACA:
+		strcpy(card->driver, "PMac DACA");
+		strcpy(card->shortname, "PowerMac DACA");
+		sprintf(card->longname, "%s (Dev %d) Sub-frame %d",
+			card->shortname, chip->device_id, chip->subframe);
+		if ((err = snd_pmac_daca_init(chip)) < 0)
+			goto __error;
+		break;
+	case PMAC_TUMBLER:
+	case PMAC_SNAPPER:
+		name_ext = chip->model == PMAC_TUMBLER ? "Tumbler" : "Snapper";
+		sprintf(card->driver, "PMac %s", name_ext);
+		sprintf(card->shortname, "PowerMac %s", name_ext);
+		sprintf(card->longname, "%s (Dev %d) Sub-frame %d",
+			card->shortname, chip->device_id, chip->subframe);
+		if ( snd_pmac_tumbler_init(chip) < 0 || snd_pmac_tumbler_post_init() < 0)
+			goto __error;
+		break;
+	case PMAC_AWACS:
+	case PMAC_SCREAMER:
+		name_ext = chip->model == PMAC_SCREAMER ? "Screamer" : "AWACS";
+		sprintf(card->driver, "PMac %s", name_ext);
+		sprintf(card->shortname, "PowerMac %s", name_ext);
+		if (chip->is_pbook_3400)
+			name_ext = " [PB3400]";
+		else if (chip->is_pbook_G3)
+			name_ext = " [PBG3]";
+		else
+			name_ext = "";
+		sprintf(card->longname, "%s%s Rev %d",
+			card->shortname, name_ext, chip->revision);
+		if ((err = snd_pmac_awacs_init(chip)) < 0)
+			goto __error;
+		break;
+	default:
+		snd_printk(KERN_ERR "unsupported hardware %d\n", chip->model);
+		err = -EINVAL;
+		goto __error;
+	}
+
+	if ((err = snd_pmac_pcm_new(chip)) < 0)
+		goto __error;
+
+	chip->initialized = 1;
+	if (enable_beep)
+		snd_pmac_attach_beep(chip);
+
+	if ((err = snd_card_register(card)) < 0)
+		goto __error;
+
+	platform_set_drvdata(devptr, card);
+	return 0;
+
+__error:
+	snd_card_free(card);
+	return err;
+}
+
+
+static int snd_pmac_remove(struct platform_device *devptr)
+{
+	snd_card_free(platform_get_drvdata(devptr));
+	return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int snd_pmac_driver_suspend(struct device *dev)
+{
+	struct snd_card *card = dev_get_drvdata(dev);
+	snd_pmac_suspend(card->private_data);
+	return 0;
+}
+
+static int snd_pmac_driver_resume(struct device *dev)
+{
+	struct snd_card *card = dev_get_drvdata(dev);
+	snd_pmac_resume(card->private_data);
+	return 0;
+}
+
+static SIMPLE_DEV_PM_OPS(snd_pmac_pm, snd_pmac_driver_suspend, snd_pmac_driver_resume);
+#define SND_PMAC_PM_OPS	&snd_pmac_pm
+#else
+#define SND_PMAC_PM_OPS	NULL
+#endif
+
+#define SND_PMAC_DRIVER		"snd_powermac"
+
+static struct platform_driver snd_pmac_driver = {
+	.probe		= snd_pmac_probe,
+	.remove		= snd_pmac_remove,
+	.driver		= {
+		.name	= SND_PMAC_DRIVER,
+		.pm	= SND_PMAC_PM_OPS,
+	},
+};
+
+static int __init alsa_card_pmac_init(void)
+{
+	int err;
+
+	if ((err = platform_driver_register(&snd_pmac_driver)) < 0)
+		return err;
+	device = platform_device_register_simple(SND_PMAC_DRIVER, -1, NULL, 0);
+	return 0;
+
+}
+
+static void __exit alsa_card_pmac_exit(void)
+{
+	if (!IS_ERR(device))
+		platform_device_unregister(device);
+	platform_driver_unregister(&snd_pmac_driver);
+}
+
+module_init(alsa_card_pmac_init)
+module_exit(alsa_card_pmac_exit)
diff --git a/src/kernel/linux/v4.14/sound/ppc/snd_ps3.c b/src/kernel/linux/v4.14/sound/ppc/snd_ps3.c
new file mode 100644
index 0000000..36f34f4
--- /dev/null
+++ b/src/kernel/linux/v4.14/sound/ppc/snd_ps3.c
@@ -0,0 +1,1159 @@
+/*
+ * Audio support for PS3
+ * Copyright (C) 2007 Sony Computer Entertainment Inc.
+ * All rights reserved.
+ * Copyright 2006, 2007 Sony Corporation
+ *
+ * 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; version 2 of the Licence.
+ *
+ * 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 <linux/dma-mapping.h>
+#include <linux/dmapool.h>
+#include <linux/gfp.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/module.h>
+
+#include <sound/asound.h>
+#include <sound/control.h>
+#include <sound/core.h>
+#include <sound/initval.h>
+#include <sound/memalloc.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+
+#include <asm/dma.h>
+#include <asm/firmware.h>
+#include <asm/lv1call.h>
+#include <asm/ps3.h>
+#include <asm/ps3av.h>
+
+#include "snd_ps3.h"
+#include "snd_ps3_reg.h"
+
+
+/*
+ * global
+ */
+static struct snd_ps3_card_info the_card;
+
+static int snd_ps3_start_delay = CONFIG_SND_PS3_DEFAULT_START_DELAY;
+
+module_param_named(start_delay, snd_ps3_start_delay, uint, 0644);
+MODULE_PARM_DESC(start_delay, "time to insert silent data in ms");
+
+static int index = SNDRV_DEFAULT_IDX1;
+static char *id = SNDRV_DEFAULT_STR1;
+
+module_param(index, int, 0444);
+MODULE_PARM_DESC(index, "Index value for PS3 soundchip.");
+module_param(id, charp, 0444);
+MODULE_PARM_DESC(id, "ID string for PS3 soundchip.");
+
+
+/*
+ * PS3 audio register access
+ */
+static inline u32 read_reg(unsigned int reg)
+{
+	return in_be32(the_card.mapped_mmio_vaddr + reg);
+}
+static inline void write_reg(unsigned int reg, u32 val)
+{
+	out_be32(the_card.mapped_mmio_vaddr + reg, val);
+}
+static inline void update_reg(unsigned int reg, u32 or_val)
+{
+	u32 newval = read_reg(reg) | or_val;
+	write_reg(reg, newval);
+}
+static inline void update_mask_reg(unsigned int reg, u32 mask, u32 or_val)
+{
+	u32 newval = (read_reg(reg) & mask) | or_val;
+	write_reg(reg, newval);
+}
+
+/*
+ * ALSA defs
+ */
+static const struct snd_pcm_hardware snd_ps3_pcm_hw = {
+	.info = (SNDRV_PCM_INFO_MMAP |
+		 SNDRV_PCM_INFO_NONINTERLEAVED |
+		 SNDRV_PCM_INFO_MMAP_VALID),
+	.formats = (SNDRV_PCM_FMTBIT_S16_BE |
+		    SNDRV_PCM_FMTBIT_S24_BE),
+	.rates = (SNDRV_PCM_RATE_44100 |
+		  SNDRV_PCM_RATE_48000 |
+		  SNDRV_PCM_RATE_88200 |
+		  SNDRV_PCM_RATE_96000),
+	.rate_min = 44100,
+	.rate_max = 96000,
+
+	.channels_min = 2, /* stereo only */
+	.channels_max = 2,
+
+	.buffer_bytes_max = PS3_AUDIO_FIFO_SIZE * 64,
+
+	/* interrupt by four stages */
+	.period_bytes_min = PS3_AUDIO_FIFO_STAGE_SIZE * 4,
+	.period_bytes_max = PS3_AUDIO_FIFO_STAGE_SIZE * 4,
+
+	.periods_min = 16,
+	.periods_max = 32, /* buffer_size_max/ period_bytes_max */
+
+	.fifo_size = PS3_AUDIO_FIFO_SIZE
+};
+
+static int snd_ps3_verify_dma_stop(struct snd_ps3_card_info *card,
+				   int count, int force_stop)
+{
+	int dma_ch, done, retries, stop_forced = 0;
+	uint32_t status;
+
+	for (dma_ch = 0; dma_ch < 8; dma_ch++) {
+		retries = count;
+		do {
+			status = read_reg(PS3_AUDIO_KICK(dma_ch)) &
+				PS3_AUDIO_KICK_STATUS_MASK;
+			switch (status) {
+			case PS3_AUDIO_KICK_STATUS_DONE:
+			case PS3_AUDIO_KICK_STATUS_NOTIFY:
+			case PS3_AUDIO_KICK_STATUS_CLEAR:
+			case PS3_AUDIO_KICK_STATUS_ERROR:
+				done = 1;
+				break;
+			default:
+				done = 0;
+				udelay(10);
+			}
+		} while (!done && --retries);
+		if (!retries && force_stop) {
+			pr_info("%s: DMA ch %d is not stopped.",
+				__func__, dma_ch);
+			/* last resort. force to stop dma.
+			 *  NOTE: this cause DMA done interrupts
+			 */
+			update_reg(PS3_AUDIO_CONFIG, PS3_AUDIO_CONFIG_CLEAR);
+			stop_forced = 1;
+		}
+	}
+	return stop_forced;
+}
+
+/*
+ * wait for all dma is done.
+ * NOTE: caller should reset card->running before call.
+ *       If not, the interrupt handler will re-start DMA,
+ *       then DMA is never stopped.
+ */
+static void snd_ps3_wait_for_dma_stop(struct snd_ps3_card_info *card)
+{
+	int stop_forced;
+	/*
+	 * wait for the last dma is done
+	 */
+
+	/*
+	 * expected maximum DMA done time is 5.7ms + something (DMA itself).
+	 * 5.7ms is from 16bit/sample 2ch 44.1Khz; the time next
+	 * DMA kick event would occur.
+	 */
+	stop_forced = snd_ps3_verify_dma_stop(card, 700, 1);
+
+	/*
+	 * clear outstanding interrupts.
+	 */
+	update_reg(PS3_AUDIO_INTR_0, 0);
+	update_reg(PS3_AUDIO_AX_IS, 0);
+
+	/*
+	 *revert CLEAR bit since it will not reset automatically after DMA stop
+	 */
+	if (stop_forced)
+		update_mask_reg(PS3_AUDIO_CONFIG, ~PS3_AUDIO_CONFIG_CLEAR, 0);
+	/* ensure the hardware sees changes */
+	wmb();
+}
+
+static void snd_ps3_kick_dma(struct snd_ps3_card_info *card)
+{
+
+	update_reg(PS3_AUDIO_KICK(0), PS3_AUDIO_KICK_REQUEST);
+	/* ensure the hardware sees the change */
+	wmb();
+}
+
+/*
+ * convert virtual addr to ioif bus addr.
+ */
+static dma_addr_t v_to_bus(struct snd_ps3_card_info *card, void *paddr, int ch)
+{
+	return card->dma_start_bus_addr[ch] +
+		(paddr - card->dma_start_vaddr[ch]);
+};
+
+
+/*
+ * increment ring buffer pointer.
+ * NOTE: caller must hold write spinlock
+ */
+static void snd_ps3_bump_buffer(struct snd_ps3_card_info *card,
+				enum snd_ps3_ch ch, size_t byte_count,
+				int stage)
+{
+	if (!stage)
+		card->dma_last_transfer_vaddr[ch] =
+			card->dma_next_transfer_vaddr[ch];
+	card->dma_next_transfer_vaddr[ch] += byte_count;
+	if ((card->dma_start_vaddr[ch] + (card->dma_buffer_size / 2)) <=
+	    card->dma_next_transfer_vaddr[ch]) {
+		card->dma_next_transfer_vaddr[ch] = card->dma_start_vaddr[ch];
+	}
+}
+/*
+ * setup dmac to send data to audio and attenuate samples on the ring buffer
+ */
+static int snd_ps3_program_dma(struct snd_ps3_card_info *card,
+			       enum snd_ps3_dma_filltype filltype)
+{
+	/* this dmac does not support over 4G */
+	uint32_t dma_addr;
+	int fill_stages, dma_ch, stage;
+	enum snd_ps3_ch ch;
+	uint32_t ch0_kick_event = 0; /* initialize to mute gcc */
+	void *start_vaddr;
+	unsigned long irqsave;
+	int silent = 0;
+
+	switch (filltype) {
+	case SND_PS3_DMA_FILLTYPE_SILENT_FIRSTFILL:
+		silent = 1;
+		/* intentionally fall thru */
+	case SND_PS3_DMA_FILLTYPE_FIRSTFILL:
+		ch0_kick_event = PS3_AUDIO_KICK_EVENT_ALWAYS;
+		break;
+
+	case SND_PS3_DMA_FILLTYPE_SILENT_RUNNING:
+		silent = 1;
+		/* intentionally fall thru */
+	case SND_PS3_DMA_FILLTYPE_RUNNING:
+		ch0_kick_event = PS3_AUDIO_KICK_EVENT_SERIALOUT0_EMPTY;
+		break;
+	}
+
+	snd_ps3_verify_dma_stop(card, 700, 0);
+	fill_stages = 4;
+	spin_lock_irqsave(&card->dma_lock, irqsave);
+	for (ch = 0; ch < 2; ch++) {
+		start_vaddr = card->dma_next_transfer_vaddr[0];
+		for (stage = 0; stage < fill_stages; stage++) {
+			dma_ch = stage * 2 + ch;
+			if (silent)
+				dma_addr = card->null_buffer_start_dma_addr;
+			else
+				dma_addr =
+				v_to_bus(card,
+					 card->dma_next_transfer_vaddr[ch],
+					 ch);
+
+			write_reg(PS3_AUDIO_SOURCE(dma_ch),
+				  (PS3_AUDIO_SOURCE_TARGET_SYSTEM_MEMORY |
+				   dma_addr));
+
+			/* dst: fixed to 3wire#0 */
+			if (ch == 0)
+				write_reg(PS3_AUDIO_DEST(dma_ch),
+					  (PS3_AUDIO_DEST_TARGET_AUDIOFIFO |
+					   PS3_AUDIO_AO_3W_LDATA(0)));
+			else
+				write_reg(PS3_AUDIO_DEST(dma_ch),
+					  (PS3_AUDIO_DEST_TARGET_AUDIOFIFO |
+					   PS3_AUDIO_AO_3W_RDATA(0)));
+
+			/* count always 1 DMA block (1/2 stage = 128 bytes) */
+			write_reg(PS3_AUDIO_DMASIZE(dma_ch), 0);
+			/* bump pointer if needed */
+			if (!silent)
+				snd_ps3_bump_buffer(card, ch,
+						    PS3_AUDIO_DMAC_BLOCK_SIZE,
+						    stage);
+
+			/* kick event  */
+			if (dma_ch == 0)
+				write_reg(PS3_AUDIO_KICK(dma_ch),
+					  ch0_kick_event);
+			else
+				write_reg(PS3_AUDIO_KICK(dma_ch),
+					  PS3_AUDIO_KICK_EVENT_AUDIO_DMA(dma_ch
+									 - 1) |
+					  PS3_AUDIO_KICK_REQUEST);
+		}
+	}
+	/* ensure the hardware sees the change */
+	wmb();
+	spin_unlock_irqrestore(&card->dma_lock, irqsave);
+
+	return 0;
+}
+
+/*
+ * Interrupt handler
+ */
+static irqreturn_t snd_ps3_interrupt(int irq, void *dev_id)
+{
+
+	uint32_t port_intr;
+	int underflow_occured = 0;
+	struct snd_ps3_card_info *card = dev_id;
+
+	if (!card->running) {
+		update_reg(PS3_AUDIO_AX_IS, 0);
+		update_reg(PS3_AUDIO_INTR_0, 0);
+		return IRQ_HANDLED;
+	}
+
+	port_intr = read_reg(PS3_AUDIO_AX_IS);
+	/*
+	 *serial buffer empty detected (every 4 times),
+	 *program next dma and kick it
+	 */
+	if (port_intr & PS3_AUDIO_AX_IE_ASOBEIE(0)) {
+		write_reg(PS3_AUDIO_AX_IS, PS3_AUDIO_AX_IE_ASOBEIE(0));
+		if (port_intr & PS3_AUDIO_AX_IE_ASOBUIE(0)) {
+			write_reg(PS3_AUDIO_AX_IS, port_intr);
+			underflow_occured = 1;
+		}
+		if (card->silent) {
+			/* we are still in silent time */
+			snd_ps3_program_dma(card,
+				(underflow_occured) ?
+				SND_PS3_DMA_FILLTYPE_SILENT_FIRSTFILL :
+				SND_PS3_DMA_FILLTYPE_SILENT_RUNNING);
+			snd_ps3_kick_dma(card);
+			card->silent--;
+		} else {
+			snd_ps3_program_dma(card,
+				(underflow_occured) ?
+				SND_PS3_DMA_FILLTYPE_FIRSTFILL :
+				SND_PS3_DMA_FILLTYPE_RUNNING);
+			snd_ps3_kick_dma(card);
+			snd_pcm_period_elapsed(card->substream);
+		}
+	} else if (port_intr & PS3_AUDIO_AX_IE_ASOBUIE(0)) {
+		write_reg(PS3_AUDIO_AX_IS, PS3_AUDIO_AX_IE_ASOBUIE(0));
+		/*
+		 * serial out underflow, but buffer empty not detected.
+		 * in this case, fill fifo with 0 to recover.  After
+		 * filling dummy data, serial automatically start to
+		 * consume them and then will generate normal buffer
+		 * empty interrupts.
+		 * If both buffer underflow and buffer empty are occurred,
+		 * it is better to do nomal data transfer than empty one
+		 */
+		snd_ps3_program_dma(card,
+				    SND_PS3_DMA_FILLTYPE_SILENT_FIRSTFILL);
+		snd_ps3_kick_dma(card);
+		snd_ps3_program_dma(card,
+				    SND_PS3_DMA_FILLTYPE_SILENT_FIRSTFILL);
+		snd_ps3_kick_dma(card);
+	}
+	/* clear interrupt cause */
+	return IRQ_HANDLED;
+};
+
+/*
+ * audio mute on/off
+ * mute_on : 0 output enabled
+ *           1 mute
+ */
+static int snd_ps3_mute(int mute_on)
+{
+	return ps3av_audio_mute(mute_on);
+}
+
+/*
+ * av setting
+ * NOTE: calling this function may generate audio interrupt.
+ */
+static int snd_ps3_change_avsetting(struct snd_ps3_card_info *card)
+{
+	int ret, retries, i;
+	pr_debug("%s: start\n", __func__);
+
+	ret = ps3av_set_audio_mode(card->avs.avs_audio_ch,
+				  card->avs.avs_audio_rate,
+				  card->avs.avs_audio_width,
+				  card->avs.avs_audio_format,
+				  card->avs.avs_audio_source);
+	/*
+	 * Reset the following unwanted settings:
+	 */
+
+	/* disable all 3wire buffers */
+	update_mask_reg(PS3_AUDIO_AO_3WMCTRL,
+			~(PS3_AUDIO_AO_3WMCTRL_ASOEN(0) |
+			  PS3_AUDIO_AO_3WMCTRL_ASOEN(1) |
+			  PS3_AUDIO_AO_3WMCTRL_ASOEN(2) |
+			  PS3_AUDIO_AO_3WMCTRL_ASOEN(3)),
+			0);
+	wmb();	/* ensure the hardware sees the change */
+	/* wait for actually stopped */
+	retries = 1000;
+	while ((read_reg(PS3_AUDIO_AO_3WMCTRL) &
+		(PS3_AUDIO_AO_3WMCTRL_ASORUN(0) |
+		 PS3_AUDIO_AO_3WMCTRL_ASORUN(1) |
+		 PS3_AUDIO_AO_3WMCTRL_ASORUN(2) |
+		 PS3_AUDIO_AO_3WMCTRL_ASORUN(3))) &&
+	       --retries) {
+		udelay(1);
+	}
+
+	/* reset buffer pointer */
+	for (i = 0; i < 4; i++) {
+		update_reg(PS3_AUDIO_AO_3WCTRL(i),
+			   PS3_AUDIO_AO_3WCTRL_ASOBRST_RESET);
+		udelay(10);
+	}
+	wmb(); /* ensure the hardware actually start resetting */
+
+	/* enable 3wire#0 buffer */
+	update_reg(PS3_AUDIO_AO_3WMCTRL, PS3_AUDIO_AO_3WMCTRL_ASOEN(0));
+
+
+	/* In 24bit mode,ALSA inserts a zero byte at first byte of per sample */
+	update_mask_reg(PS3_AUDIO_AO_3WCTRL(0),
+			~PS3_AUDIO_AO_3WCTRL_ASODF,
+			PS3_AUDIO_AO_3WCTRL_ASODF_LSB);
+	update_mask_reg(PS3_AUDIO_AO_SPDCTRL(0),
+			~PS3_AUDIO_AO_SPDCTRL_SPODF,
+			PS3_AUDIO_AO_SPDCTRL_SPODF_LSB);
+	/* ensure all the setting above is written back to register */
+	wmb();
+	/* avsetting driver altered AX_IE, caller must reset it if you want */
+	pr_debug("%s: end\n", __func__);
+	return ret;
+}
+
+/*
+ *  set sampling rate according to the substream
+ */
+static int snd_ps3_set_avsetting(struct snd_pcm_substream *substream)
+{
+	struct snd_ps3_card_info *card = snd_pcm_substream_chip(substream);
+	struct snd_ps3_avsetting_info avs;
+	int ret;
+
+	avs = card->avs;
+
+	pr_debug("%s: called freq=%d width=%d\n", __func__,
+		 substream->runtime->rate,
+		 snd_pcm_format_width(substream->runtime->format));
+
+	pr_debug("%s: before freq=%d width=%d\n", __func__,
+		 card->avs.avs_audio_rate, card->avs.avs_audio_width);
+
+	/* sample rate */
+	switch (substream->runtime->rate) {
+	case 44100:
+		avs.avs_audio_rate = PS3AV_CMD_AUDIO_FS_44K;
+		break;
+	case 48000:
+		avs.avs_audio_rate = PS3AV_CMD_AUDIO_FS_48K;
+		break;
+	case 88200:
+		avs.avs_audio_rate = PS3AV_CMD_AUDIO_FS_88K;
+		break;
+	case 96000:
+		avs.avs_audio_rate = PS3AV_CMD_AUDIO_FS_96K;
+		break;
+	default:
+		pr_info("%s: invalid rate %d\n", __func__,
+			substream->runtime->rate);
+		return 1;
+	}
+
+	/* width */
+	switch (snd_pcm_format_width(substream->runtime->format)) {
+	case 16:
+		avs.avs_audio_width = PS3AV_CMD_AUDIO_WORD_BITS_16;
+		break;
+	case 24:
+		avs.avs_audio_width = PS3AV_CMD_AUDIO_WORD_BITS_24;
+		break;
+	default:
+		pr_info("%s: invalid width %d\n", __func__,
+			snd_pcm_format_width(substream->runtime->format));
+		return 1;
+	}
+
+	memcpy(avs.avs_cs_info, ps3av_mode_cs_info, 8);
+
+	if (memcmp(&card->avs, &avs, sizeof(avs))) {
+		pr_debug("%s: after freq=%d width=%d\n", __func__,
+			 card->avs.avs_audio_rate, card->avs.avs_audio_width);
+
+		card->avs = avs;
+		snd_ps3_change_avsetting(card);
+		ret = 0;
+	} else
+		ret = 1;
+
+	/* check CS non-audio bit and mute accordingly */
+	if (avs.avs_cs_info[0] & 0x02)
+		ps3av_audio_mute_analog(1); /* mute if non-audio */
+	else
+		ps3av_audio_mute_analog(0);
+
+	return ret;
+}
+
+/*
+ * PCM operators
+ */
+static int snd_ps3_pcm_open(struct snd_pcm_substream *substream)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct snd_ps3_card_info *card = snd_pcm_substream_chip(substream);
+	int pcm_index;
+
+	pcm_index = substream->pcm->device;
+	/* to retrieve substream/runtime in interrupt handler */
+	card->substream = substream;
+
+	runtime->hw = snd_ps3_pcm_hw;
+
+	card->start_delay = snd_ps3_start_delay;
+
+	/* mute off */
+	snd_ps3_mute(0); /* this function sleep */
+
+	snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
+				   PS3_AUDIO_FIFO_STAGE_SIZE * 4 * 2);
+	return 0;
+};
+
+static int snd_ps3_pcm_close(struct snd_pcm_substream *substream)
+{
+	/* mute on */
+	snd_ps3_mute(1);
+	return 0;
+};
+
+static int snd_ps3_pcm_hw_params(struct snd_pcm_substream *substream,
+				 struct snd_pcm_hw_params *hw_params)
+{
+	size_t size;
+
+	/* alloc transport buffer */
+	size = params_buffer_bytes(hw_params);
+	snd_pcm_lib_malloc_pages(substream, size);
+	return 0;
+};
+
+static int snd_ps3_pcm_hw_free(struct snd_pcm_substream *substream)
+{
+	return snd_pcm_lib_free_pages(substream);
+};
+
+static int snd_ps3_delay_to_bytes(struct snd_pcm_substream *substream,
+				  unsigned int delay_ms)
+{
+	int ret;
+	int rate ;
+
+	rate = substream->runtime->rate;
+	ret = snd_pcm_format_size(substream->runtime->format,
+				  rate * delay_ms / 1000)
+		* substream->runtime->channels;
+
+	pr_debug("%s: time=%d rate=%d bytes=%ld, frames=%d, ret=%d\n",
+		 __func__,
+		 delay_ms,
+		 rate,
+		 snd_pcm_format_size(substream->runtime->format, rate),
+		 rate * delay_ms / 1000,
+		 ret);
+
+	return ret;
+};
+
+static int snd_ps3_pcm_prepare(struct snd_pcm_substream *substream)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct snd_ps3_card_info *card = snd_pcm_substream_chip(substream);
+	unsigned long irqsave;
+
+	if (!snd_ps3_set_avsetting(substream)) {
+		/* some parameter changed */
+		write_reg(PS3_AUDIO_AX_IE,
+			  PS3_AUDIO_AX_IE_ASOBEIE(0) |
+			  PS3_AUDIO_AX_IE_ASOBUIE(0));
+		/*
+		 * let SPDIF device re-lock with SPDIF signal,
+		 * start with some silence
+		 */
+		card->silent = snd_ps3_delay_to_bytes(substream,
+						      card->start_delay) /
+			(PS3_AUDIO_FIFO_STAGE_SIZE * 4); /* every 4 times */
+	}
+
+	/* restart ring buffer pointer */
+	spin_lock_irqsave(&card->dma_lock, irqsave);
+	{
+		card->dma_buffer_size = runtime->dma_bytes;
+
+		card->dma_last_transfer_vaddr[SND_PS3_CH_L] =
+			card->dma_next_transfer_vaddr[SND_PS3_CH_L] =
+			card->dma_start_vaddr[SND_PS3_CH_L] =
+			runtime->dma_area;
+		card->dma_start_bus_addr[SND_PS3_CH_L] = runtime->dma_addr;
+
+		card->dma_last_transfer_vaddr[SND_PS3_CH_R] =
+			card->dma_next_transfer_vaddr[SND_PS3_CH_R] =
+			card->dma_start_vaddr[SND_PS3_CH_R] =
+			runtime->dma_area + (runtime->dma_bytes / 2);
+		card->dma_start_bus_addr[SND_PS3_CH_R] =
+			runtime->dma_addr + (runtime->dma_bytes / 2);
+
+		pr_debug("%s: vaddr=%p bus=%#llx\n", __func__,
+			 card->dma_start_vaddr[SND_PS3_CH_L],
+			 card->dma_start_bus_addr[SND_PS3_CH_L]);
+
+	}
+	spin_unlock_irqrestore(&card->dma_lock, irqsave);
+
+	/* ensure the hardware sees the change */
+	mb();
+
+	return 0;
+};
+
+static int snd_ps3_pcm_trigger(struct snd_pcm_substream *substream,
+			       int cmd)
+{
+	struct snd_ps3_card_info *card = snd_pcm_substream_chip(substream);
+	int ret = 0;
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+		/* clear outstanding interrupts  */
+		update_reg(PS3_AUDIO_AX_IS, 0);
+
+		spin_lock(&card->dma_lock);
+		{
+			card->running = 1;
+		}
+		spin_unlock(&card->dma_lock);
+
+		snd_ps3_program_dma(card,
+				    SND_PS3_DMA_FILLTYPE_SILENT_FIRSTFILL);
+		snd_ps3_kick_dma(card);
+		while (read_reg(PS3_AUDIO_KICK(7)) &
+		       PS3_AUDIO_KICK_STATUS_MASK) {
+			udelay(1);
+		}
+		snd_ps3_program_dma(card, SND_PS3_DMA_FILLTYPE_SILENT_RUNNING);
+		snd_ps3_kick_dma(card);
+		break;
+
+	case SNDRV_PCM_TRIGGER_STOP:
+		spin_lock(&card->dma_lock);
+		{
+			card->running = 0;
+		}
+		spin_unlock(&card->dma_lock);
+		snd_ps3_wait_for_dma_stop(card);
+		break;
+	default:
+		break;
+
+	}
+
+	return ret;
+};
+
+/*
+ * report current pointer
+ */
+static snd_pcm_uframes_t snd_ps3_pcm_pointer(
+	struct snd_pcm_substream *substream)
+{
+	struct snd_ps3_card_info *card = snd_pcm_substream_chip(substream);
+	size_t bytes;
+	snd_pcm_uframes_t ret;
+
+	spin_lock(&card->dma_lock);
+	{
+		bytes = (size_t)(card->dma_last_transfer_vaddr[SND_PS3_CH_L] -
+				 card->dma_start_vaddr[SND_PS3_CH_L]);
+	}
+	spin_unlock(&card->dma_lock);
+
+	ret = bytes_to_frames(substream->runtime, bytes * 2);
+
+	return ret;
+};
+
+/*
+ * SPDIF status bits controls
+ */
+static int snd_ps3_spdif_mask_info(struct snd_kcontrol *kcontrol,
+				   struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
+	uinfo->count = 1;
+	return 0;
+}
+
+/* FIXME: ps3av_set_audio_mode() assumes only consumer mode */
+static int snd_ps3_spdif_cmask_get(struct snd_kcontrol *kcontrol,
+				   struct snd_ctl_elem_value *ucontrol)
+{
+	memset(ucontrol->value.iec958.status, 0xff, 8);
+	return 0;
+}
+
+static int snd_ps3_spdif_pmask_get(struct snd_kcontrol *kcontrol,
+				   struct snd_ctl_elem_value *ucontrol)
+{
+	return 0;
+}
+
+static int snd_ps3_spdif_default_get(struct snd_kcontrol *kcontrol,
+				     struct snd_ctl_elem_value *ucontrol)
+{
+	memcpy(ucontrol->value.iec958.status, ps3av_mode_cs_info, 8);
+	return 0;
+}
+
+static int snd_ps3_spdif_default_put(struct snd_kcontrol *kcontrol,
+				     struct snd_ctl_elem_value *ucontrol)
+{
+	if (memcmp(ps3av_mode_cs_info, ucontrol->value.iec958.status, 8)) {
+		memcpy(ps3av_mode_cs_info, ucontrol->value.iec958.status, 8);
+		return 1;
+	}
+	return 0;
+}
+
+static struct snd_kcontrol_new spdif_ctls[] = {
+	{
+		.access = SNDRV_CTL_ELEM_ACCESS_READ,
+		.iface = SNDRV_CTL_ELEM_IFACE_PCM,
+		.name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, CON_MASK),
+		.info = snd_ps3_spdif_mask_info,
+		.get = snd_ps3_spdif_cmask_get,
+	},
+	{
+		.access = SNDRV_CTL_ELEM_ACCESS_READ,
+		.iface = SNDRV_CTL_ELEM_IFACE_PCM,
+		.name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, PRO_MASK),
+		.info = snd_ps3_spdif_mask_info,
+		.get = snd_ps3_spdif_pmask_get,
+	},
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_PCM,
+		.name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, DEFAULT),
+		.info = snd_ps3_spdif_mask_info,
+		.get = snd_ps3_spdif_default_get,
+		.put = snd_ps3_spdif_default_put,
+	},
+};
+
+static const struct snd_pcm_ops snd_ps3_pcm_spdif_ops = {
+	.open = snd_ps3_pcm_open,
+	.close = snd_ps3_pcm_close,
+	.ioctl = snd_pcm_lib_ioctl,
+	.hw_params = snd_ps3_pcm_hw_params,
+	.hw_free = snd_ps3_pcm_hw_free,
+	.prepare = snd_ps3_pcm_prepare,
+	.trigger = snd_ps3_pcm_trigger,
+	.pointer = snd_ps3_pcm_pointer,
+};
+
+
+static int snd_ps3_map_mmio(void)
+{
+	the_card.mapped_mmio_vaddr =
+		ioremap(the_card.ps3_dev->m_region->bus_addr,
+			the_card.ps3_dev->m_region->len);
+
+	if (!the_card.mapped_mmio_vaddr) {
+		pr_info("%s: ioremap 0 failed p=%#lx l=%#lx \n",
+		       __func__, the_card.ps3_dev->m_region->lpar_addr,
+		       the_card.ps3_dev->m_region->len);
+		return -ENXIO;
+	}
+
+	return 0;
+};
+
+static void snd_ps3_unmap_mmio(void)
+{
+	iounmap(the_card.mapped_mmio_vaddr);
+	the_card.mapped_mmio_vaddr = NULL;
+}
+
+static int snd_ps3_allocate_irq(void)
+{
+	int ret;
+	u64 lpar_addr, lpar_size;
+	u64 __iomem *mapped;
+
+	/* FIXME: move this to device_init (H/W probe) */
+
+	/* get irq outlet */
+	ret = lv1_gpu_device_map(1, &lpar_addr, &lpar_size);
+	if (ret) {
+		pr_info("%s: device map 1 failed %d\n", __func__,
+			ret);
+		return -ENXIO;
+	}
+
+	mapped = ioremap(lpar_addr, lpar_size);
+	if (!mapped) {
+		pr_info("%s: ioremap 1 failed \n", __func__);
+		return -ENXIO;
+	}
+
+	the_card.audio_irq_outlet = in_be64(mapped);
+
+	iounmap(mapped);
+	ret = lv1_gpu_device_unmap(1);
+	if (ret)
+		pr_info("%s: unmap 1 failed\n", __func__);
+
+	/* irq */
+	ret = ps3_irq_plug_setup(PS3_BINDING_CPU_ANY,
+				 the_card.audio_irq_outlet,
+				 &the_card.irq_no);
+	if (ret) {
+		pr_info("%s:ps3_alloc_irq failed (%d)\n", __func__, ret);
+		return ret;
+	}
+
+	ret = request_irq(the_card.irq_no, snd_ps3_interrupt, 0,
+			  SND_PS3_DRIVER_NAME, &the_card);
+	if (ret) {
+		pr_info("%s: request_irq failed (%d)\n", __func__, ret);
+		goto cleanup_irq;
+	}
+
+	return 0;
+
+ cleanup_irq:
+	ps3_irq_plug_destroy(the_card.irq_no);
+	return ret;
+};
+
+static void snd_ps3_free_irq(void)
+{
+	free_irq(the_card.irq_no, &the_card);
+	ps3_irq_plug_destroy(the_card.irq_no);
+}
+
+static void snd_ps3_audio_set_base_addr(uint64_t ioaddr_start)
+{
+	uint64_t val;
+	int ret;
+
+	val = (ioaddr_start & (0x0fUL << 32)) >> (32 - 20) |
+		(0x03UL << 24) |
+		(0x0fUL << 12) |
+		(PS3_AUDIO_IOID);
+
+	ret = lv1_gpu_attribute(0x100, 0x007, val);
+	if (ret)
+		pr_info("%s: gpu_attribute failed %d\n", __func__,
+			ret);
+}
+
+static void snd_ps3_audio_fixup(struct snd_ps3_card_info *card)
+{
+	/*
+	 * avsetting driver seems to never change the following
+	 * so, init them here once
+	 */
+
+	/* no dma interrupt needed */
+	write_reg(PS3_AUDIO_INTR_EN_0, 0);
+
+	/* use every 4 buffer empty interrupt */
+	update_mask_reg(PS3_AUDIO_AX_IC,
+			PS3_AUDIO_AX_IC_AASOIMD_MASK,
+			PS3_AUDIO_AX_IC_AASOIMD_EVERY4);
+
+	/* enable 3wire clocks */
+	update_mask_reg(PS3_AUDIO_AO_3WMCTRL,
+			~(PS3_AUDIO_AO_3WMCTRL_ASOBCLKD_DISABLED |
+			  PS3_AUDIO_AO_3WMCTRL_ASOLRCKD_DISABLED),
+			0);
+	update_reg(PS3_AUDIO_AO_3WMCTRL,
+		   PS3_AUDIO_AO_3WMCTRL_ASOPLRCK_DEFAULT);
+}
+
+static int snd_ps3_init_avsetting(struct snd_ps3_card_info *card)
+{
+	int ret;
+	pr_debug("%s: start\n", __func__);
+	card->avs.avs_audio_ch = PS3AV_CMD_AUDIO_NUM_OF_CH_2;
+	card->avs.avs_audio_rate = PS3AV_CMD_AUDIO_FS_48K;
+	card->avs.avs_audio_width = PS3AV_CMD_AUDIO_WORD_BITS_16;
+	card->avs.avs_audio_format = PS3AV_CMD_AUDIO_FORMAT_PCM;
+	card->avs.avs_audio_source = PS3AV_CMD_AUDIO_SOURCE_SERIAL;
+	memcpy(card->avs.avs_cs_info, ps3av_mode_cs_info, 8);
+
+	ret = snd_ps3_change_avsetting(card);
+
+	snd_ps3_audio_fixup(card);
+
+	/* to start to generate SPDIF signal, fill data */
+	snd_ps3_program_dma(card, SND_PS3_DMA_FILLTYPE_SILENT_FIRSTFILL);
+	snd_ps3_kick_dma(card);
+	pr_debug("%s: end\n", __func__);
+	return ret;
+}
+
+static int snd_ps3_driver_probe(struct ps3_system_bus_device *dev)
+{
+	int i, ret;
+	u64 lpar_addr, lpar_size;
+
+	if (WARN_ON(!firmware_has_feature(FW_FEATURE_PS3_LV1)))
+		return -ENODEV;
+	if (WARN_ON(dev->match_id != PS3_MATCH_ID_SOUND))
+		return -ENODEV;
+
+	the_card.ps3_dev = dev;
+
+	ret = ps3_open_hv_device(dev);
+
+	if (ret)
+		return -ENXIO;
+
+	/* setup MMIO */
+	ret = lv1_gpu_device_map(2, &lpar_addr, &lpar_size);
+	if (ret) {
+		pr_info("%s: device map 2 failed %d\n", __func__, ret);
+		goto clean_open;
+	}
+	ps3_mmio_region_init(dev, dev->m_region, lpar_addr, lpar_size,
+		PAGE_SHIFT);
+
+	ret = snd_ps3_map_mmio();
+	if (ret)
+		goto clean_dev_map;
+
+	/* setup DMA area */
+	ps3_dma_region_init(dev, dev->d_region,
+			    PAGE_SHIFT, /* use system page size */
+			    0, /* dma type; not used */
+			    NULL,
+			    _ALIGN_UP(SND_PS3_DMA_REGION_SIZE, PAGE_SIZE));
+	dev->d_region->ioid = PS3_AUDIO_IOID;
+
+	ret = ps3_dma_region_create(dev->d_region);
+	if (ret) {
+		pr_info("%s: region_create\n", __func__);
+		goto clean_mmio;
+	}
+
+	snd_ps3_audio_set_base_addr(dev->d_region->bus_addr);
+
+	/* CONFIG_SND_PS3_DEFAULT_START_DELAY */
+	the_card.start_delay = snd_ps3_start_delay;
+
+	/* irq */
+	if (snd_ps3_allocate_irq()) {
+		ret = -ENXIO;
+		goto clean_dma_region;
+	}
+
+	/* create card instance */
+	ret = snd_card_new(&dev->core, index, id, THIS_MODULE,
+			   0, &the_card.card);
+	if (ret < 0)
+		goto clean_irq;
+
+	strcpy(the_card.card->driver, "PS3");
+	strcpy(the_card.card->shortname, "PS3");
+	strcpy(the_card.card->longname, "PS3 sound");
+
+	/* create control elements */
+	for (i = 0; i < ARRAY_SIZE(spdif_ctls); i++) {
+		ret = snd_ctl_add(the_card.card,
+				  snd_ctl_new1(&spdif_ctls[i], &the_card));
+		if (ret < 0)
+			goto clean_card;
+	}
+
+	/* create PCM devices instance */
+	/* NOTE:this driver works assuming pcm:substream = 1:1 */
+	ret = snd_pcm_new(the_card.card,
+			  "SPDIF",
+			  0, /* instance index, will be stored pcm.device*/
+			  1, /* output substream */
+			  0, /* input substream */
+			  &(the_card.pcm));
+	if (ret)
+		goto clean_card;
+
+	the_card.pcm->private_data = &the_card;
+	strcpy(the_card.pcm->name, "SPDIF");
+
+	/* set pcm ops */
+	snd_pcm_set_ops(the_card.pcm, SNDRV_PCM_STREAM_PLAYBACK,
+			&snd_ps3_pcm_spdif_ops);
+
+	the_card.pcm->info_flags = SNDRV_PCM_INFO_NONINTERLEAVED;
+	/* pre-alloc PCM DMA buffer*/
+	ret = snd_pcm_lib_preallocate_pages_for_all(the_card.pcm,
+					SNDRV_DMA_TYPE_DEV,
+					&dev->core,
+					SND_PS3_PCM_PREALLOC_SIZE,
+					SND_PS3_PCM_PREALLOC_SIZE);
+	if (ret < 0) {
+		pr_info("%s: prealloc failed\n", __func__);
+		goto clean_card;
+	}
+
+	/*
+	 * allocate null buffer
+	 * its size should be lager than PS3_AUDIO_FIFO_STAGE_SIZE * 2
+	 * PAGE_SIZE is enogh
+	 */
+	the_card.null_buffer_start_vaddr =
+		dma_alloc_coherent(&the_card.ps3_dev->core,
+				   PAGE_SIZE,
+				   &the_card.null_buffer_start_dma_addr,
+				   GFP_KERNEL);
+	if (!the_card.null_buffer_start_vaddr) {
+		pr_info("%s: nullbuffer alloc failed\n", __func__);
+		ret = -ENOMEM;
+		goto clean_card;
+	}
+	pr_debug("%s: null vaddr=%p dma=%#llx\n", __func__,
+		 the_card.null_buffer_start_vaddr,
+		 the_card.null_buffer_start_dma_addr);
+	/* set default sample rate/word width */
+	snd_ps3_init_avsetting(&the_card);
+
+	/* register the card */
+	ret = snd_card_register(the_card.card);
+	if (ret < 0)
+		goto clean_dma_map;
+
+	pr_info("%s started. start_delay=%dms\n",
+		the_card.card->longname, the_card.start_delay);
+	return 0;
+
+clean_dma_map:
+	dma_free_coherent(&the_card.ps3_dev->core,
+			  PAGE_SIZE,
+			  the_card.null_buffer_start_vaddr,
+			  the_card.null_buffer_start_dma_addr);
+clean_card:
+	snd_card_free(the_card.card);
+clean_irq:
+	snd_ps3_free_irq();
+clean_dma_region:
+	ps3_dma_region_free(dev->d_region);
+clean_mmio:
+	snd_ps3_unmap_mmio();
+clean_dev_map:
+	lv1_gpu_device_unmap(2);
+clean_open:
+	ps3_close_hv_device(dev);
+	/*
+	 * there is no destructor function to pcm.
+	 * midlayer automatically releases if the card removed
+	 */
+	return ret;
+}; /* snd_ps3_probe */
+
+/* called when module removal */
+static int snd_ps3_driver_remove(struct ps3_system_bus_device *dev)
+{
+	int ret;
+	pr_info("%s:start id=%d\n", __func__,  dev->match_id);
+	if (dev->match_id != PS3_MATCH_ID_SOUND)
+		return -ENXIO;
+
+	/*
+	 * ctl and preallocate buffer will be freed in
+	 * snd_card_free
+	 */
+	ret = snd_card_free(the_card.card);
+	if (ret)
+		pr_info("%s: ctl freecard=%d\n", __func__, ret);
+
+	dma_free_coherent(&dev->core,
+			  PAGE_SIZE,
+			  the_card.null_buffer_start_vaddr,
+			  the_card.null_buffer_start_dma_addr);
+
+	ps3_dma_region_free(dev->d_region);
+
+	snd_ps3_free_irq();
+	snd_ps3_unmap_mmio();
+
+	lv1_gpu_device_unmap(2);
+	ps3_close_hv_device(dev);
+	pr_info("%s:end id=%d\n", __func__, dev->match_id);
+	return 0;
+} /* snd_ps3_remove */
+
+static struct ps3_system_bus_driver snd_ps3_bus_driver_info = {
+	.match_id = PS3_MATCH_ID_SOUND,
+	.probe = snd_ps3_driver_probe,
+	.remove = snd_ps3_driver_remove,
+	.shutdown = snd_ps3_driver_remove,
+	.core = {
+		.name = SND_PS3_DRIVER_NAME,
+		.owner = THIS_MODULE,
+	},
+};
+
+
+/*
+ * module/subsystem initialize/terminate
+ */
+static int __init snd_ps3_init(void)
+{
+	int ret;
+
+	if (!firmware_has_feature(FW_FEATURE_PS3_LV1))
+		return -ENXIO;
+
+	memset(&the_card, 0, sizeof(the_card));
+	spin_lock_init(&the_card.dma_lock);
+
+	/* register systembus DRIVER, this calls our probe() func */
+	ret = ps3_system_bus_driver_register(&snd_ps3_bus_driver_info);
+
+	return ret;
+}
+module_init(snd_ps3_init);
+
+static void __exit snd_ps3_exit(void)
+{
+	ps3_system_bus_driver_unregister(&snd_ps3_bus_driver_info);
+}
+module_exit(snd_ps3_exit);
+
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("PS3 sound driver");
+MODULE_AUTHOR("Sony Computer Entertainment Inc.");
+MODULE_ALIAS(PS3_MODULE_ALIAS_SOUND);
diff --git a/src/kernel/linux/v4.14/sound/ppc/snd_ps3.h b/src/kernel/linux/v4.14/sound/ppc/snd_ps3.h
new file mode 100644
index 0000000..326fb29
--- /dev/null
+++ b/src/kernel/linux/v4.14/sound/ppc/snd_ps3.h
@@ -0,0 +1,136 @@
+/*
+ * Audio support for PS3
+ * Copyright (C) 2007 Sony Computer Entertainment Inc.
+ * All rights reserved.
+ * Copyright 2006, 2007 Sony Corporation
+ *
+ * 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; version 2 of the Licence.
+ *
+ * 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
+ */
+
+#if !defined(_SND_PS3_H_)
+#define _SND_PS3_H_
+
+#include <linux/irqreturn.h>
+
+#define SND_PS3_DRIVER_NAME "snd_ps3"
+
+enum snd_ps3_out_channel {
+	SND_PS3_OUT_SPDIF_0,
+	SND_PS3_OUT_SPDIF_1,
+	SND_PS3_OUT_SERIAL_0,
+	SND_PS3_OUT_DEVS
+};
+
+enum snd_ps3_dma_filltype {
+	SND_PS3_DMA_FILLTYPE_FIRSTFILL,
+	SND_PS3_DMA_FILLTYPE_RUNNING,
+	SND_PS3_DMA_FILLTYPE_SILENT_FIRSTFILL,
+	SND_PS3_DMA_FILLTYPE_SILENT_RUNNING
+};
+
+enum snd_ps3_ch {
+	SND_PS3_CH_L = 0,
+	SND_PS3_CH_R = 1,
+	SND_PS3_CH_MAX = 2
+};
+
+struct snd_ps3_avsetting_info {
+	uint32_t avs_audio_ch;     /* fixed */
+	uint32_t avs_audio_rate;
+	uint32_t avs_audio_width;
+	uint32_t avs_audio_format; /* fixed */
+	uint32_t avs_audio_source; /* fixed */
+	unsigned char avs_cs_info[8];
+};
+/*
+ * PS3 audio 'card' instance
+ * there should be only ONE hardware.
+ */
+struct snd_ps3_card_info {
+	struct ps3_system_bus_device *ps3_dev;
+	struct snd_card *card;
+
+	struct snd_pcm *pcm;
+	struct snd_pcm_substream *substream;
+
+	/* hvc info */
+	u64 audio_lpar_addr;
+	u64 audio_lpar_size;
+
+	/* registers */
+	void __iomem *mapped_mmio_vaddr;
+
+	/* irq */
+	u64 audio_irq_outlet;
+	unsigned int irq_no;
+
+	/* remember avsetting */
+	struct snd_ps3_avsetting_info avs;
+
+	/* dma buffer management */
+	spinlock_t dma_lock;
+		/* dma_lock start */
+		void * dma_start_vaddr[2]; /* 0 for L, 1 for R */
+		dma_addr_t dma_start_bus_addr[2];
+		size_t dma_buffer_size;
+		void * dma_last_transfer_vaddr[2];
+		void * dma_next_transfer_vaddr[2];
+		int    silent;
+		/* dma_lock end */
+
+	int running;
+
+	/* null buffer */
+	void *null_buffer_start_vaddr;
+	dma_addr_t null_buffer_start_dma_addr;
+
+	/* start delay */
+	unsigned int start_delay;
+
+};
+
+
+/* PS3 audio DMAC block size in bytes */
+#define PS3_AUDIO_DMAC_BLOCK_SIZE (128)
+/* one stage (stereo)  of audio FIFO in bytes */
+#define PS3_AUDIO_FIFO_STAGE_SIZE (256)
+/* how many stages the fifo have */
+#define PS3_AUDIO_FIFO_STAGE_COUNT (8)
+/* fifo size 128 bytes * 8 stages * stereo (2ch) */
+#define PS3_AUDIO_FIFO_SIZE \
+	(PS3_AUDIO_FIFO_STAGE_SIZE * PS3_AUDIO_FIFO_STAGE_COUNT)
+
+/* PS3 audio DMAC max block count in one dma shot = 128 (0x80) blocks*/
+#define PS3_AUDIO_DMAC_MAX_BLOCKS  (PS3_AUDIO_DMASIZE_BLOCKS_MASK + 1)
+
+#define PS3_AUDIO_NORMAL_DMA_START_CH (0)
+#define PS3_AUDIO_NORMAL_DMA_COUNT    (8)
+#define PS3_AUDIO_NULL_DMA_START_CH \
+	(PS3_AUDIO_NORMAL_DMA_START_CH + PS3_AUDIO_NORMAL_DMA_COUNT)
+#define PS3_AUDIO_NULL_DMA_COUNT      (2)
+
+#define SND_PS3_MAX_VOL (0x0F)
+#define SND_PS3_MIN_VOL (0x00)
+#define SND_PS3_MIN_ATT SND_PS3_MIN_VOL
+#define SND_PS3_MAX_ATT SND_PS3_MAX_VOL
+
+#define SND_PS3_PCM_PREALLOC_SIZE \
+	(PS3_AUDIO_DMAC_BLOCK_SIZE * PS3_AUDIO_DMAC_MAX_BLOCKS * 4)
+
+#define SND_PS3_DMA_REGION_SIZE \
+	(SND_PS3_PCM_PREALLOC_SIZE + PAGE_SIZE)
+
+#define PS3_AUDIO_IOID       (1UL)
+
+#endif /* _SND_PS3_H_ */
diff --git a/src/kernel/linux/v4.14/sound/ppc/snd_ps3_reg.h b/src/kernel/linux/v4.14/sound/ppc/snd_ps3_reg.h
new file mode 100644
index 0000000..2e63020
--- /dev/null
+++ b/src/kernel/linux/v4.14/sound/ppc/snd_ps3_reg.h
@@ -0,0 +1,891 @@
+/*
+ * Audio support for PS3
+ * Copyright (C) 2007 Sony Computer Entertainment Inc.
+ * Copyright 2006, 2007 Sony Corporation
+ * All rights reserved.
+ *
+ * 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; version 2 of the License.
+ *
+ * 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
+ */
+
+/*
+ * interrupt / configure registers
+ */
+
+#define PS3_AUDIO_INTR_0                 (0x00000100)
+#define PS3_AUDIO_INTR_EN_0              (0x00000140)
+#define PS3_AUDIO_CONFIG                 (0x00000200)
+
+/*
+ * DMAC registers
+ * n:0..9
+ */
+#define PS3_AUDIO_DMAC_REGBASE(x)         (0x0000210 + 0x20 * (x))
+
+#define PS3_AUDIO_KICK(n)                 (PS3_AUDIO_DMAC_REGBASE(n) + 0x00)
+#define PS3_AUDIO_SOURCE(n)               (PS3_AUDIO_DMAC_REGBASE(n) + 0x04)
+#define PS3_AUDIO_DEST(n)                 (PS3_AUDIO_DMAC_REGBASE(n) + 0x08)
+#define PS3_AUDIO_DMASIZE(n)              (PS3_AUDIO_DMAC_REGBASE(n) + 0x0C)
+
+/*
+ * mute control
+ */
+#define PS3_AUDIO_AX_MCTRL                (0x00004000)
+#define PS3_AUDIO_AX_ISBP                 (0x00004004)
+#define PS3_AUDIO_AX_AOBP                 (0x00004008)
+#define PS3_AUDIO_AX_IC                   (0x00004010)
+#define PS3_AUDIO_AX_IE                   (0x00004014)
+#define PS3_AUDIO_AX_IS                   (0x00004018)
+
+/*
+ * three wire serial
+ * n:0..3
+ */
+#define PS3_AUDIO_AO_MCTRL                (0x00006000)
+#define PS3_AUDIO_AO_3WMCTRL              (0x00006004)
+
+#define PS3_AUDIO_AO_3WCTRL(n)            (0x00006200 + 0x200 * (n))
+
+/*
+ * S/PDIF
+ * n:0..1
+ * x:0..11
+ * y:0..5
+ */
+#define PS3_AUDIO_AO_SPD_REGBASE(n)       (0x00007200 + 0x200 * (n))
+
+#define PS3_AUDIO_AO_SPDCTRL(n) \
+	(PS3_AUDIO_AO_SPD_REGBASE(n) + 0x00)
+#define PS3_AUDIO_AO_SPDUB(n, x) \
+	(PS3_AUDIO_AO_SPD_REGBASE(n) + 0x04 + 0x04 * (x))
+#define PS3_AUDIO_AO_SPDCS(n, y) \
+	(PS3_AUDIO_AO_SPD_REGBASE(n) + 0x34 + 0x04 * (y))
+
+
+/*
+  PS3_AUDIO_INTR_0 register tells an interrupt handler which audio
+  DMA channel triggered the interrupt.  The interrupt status for a channel
+  can be cleared by writing a '1' to the corresponding bit.  A new interrupt
+  cannot be generated until the previous interrupt has been cleared.
+
+  Note that the status reported by PS3_AUDIO_INTR_0 is independent of the
+  value of PS3_AUDIO_INTR_EN_0.
+
+ 31            24 23           16 15            8 7             0
+ +-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-+
+ |0 0 0 0 0 0 0 0 0 0 0 0 0|C|0|C|0|C|0|C|0|C|0|C|0|C|0|C|0|C|0|C| INTR_0
+ +-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-+
+*/
+#define PS3_AUDIO_INTR_0_CHAN(n)	(1 << ((n) * 2))
+#define PS3_AUDIO_INTR_0_CHAN9     PS3_AUDIO_INTR_0_CHAN(9)
+#define PS3_AUDIO_INTR_0_CHAN8     PS3_AUDIO_INTR_0_CHAN(8)
+#define PS3_AUDIO_INTR_0_CHAN7     PS3_AUDIO_INTR_0_CHAN(7)
+#define PS3_AUDIO_INTR_0_CHAN6     PS3_AUDIO_INTR_0_CHAN(6)
+#define PS3_AUDIO_INTR_0_CHAN5     PS3_AUDIO_INTR_0_CHAN(5)
+#define PS3_AUDIO_INTR_0_CHAN4     PS3_AUDIO_INTR_0_CHAN(4)
+#define PS3_AUDIO_INTR_0_CHAN3     PS3_AUDIO_INTR_0_CHAN(3)
+#define PS3_AUDIO_INTR_0_CHAN2     PS3_AUDIO_INTR_0_CHAN(2)
+#define PS3_AUDIO_INTR_0_CHAN1     PS3_AUDIO_INTR_0_CHAN(1)
+#define PS3_AUDIO_INTR_0_CHAN0     PS3_AUDIO_INTR_0_CHAN(0)
+
+/*
+  The PS3_AUDIO_INTR_EN_0 register specifies which DMA channels can generate
+  an interrupt to the PU.  Each bit of PS3_AUDIO_INTR_EN_0 is ANDed with the
+  corresponding bit in PS3_AUDIO_INTR_0.  The resulting bits are OR'd together
+  to generate the Audio interrupt.
+
+ 31            24 23           16 15            8 7             0
+ +-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-+
+ |0 0 0 0 0 0 0 0 0 0 0 0 0|C|0|C|0|C|0|C|0|C|0|C|0|C|0|C|0|C|0|C| INTR_EN_0
+ +-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-+
+
+  Bit assignments are same as PS3_AUDIO_INTR_0
+*/
+
+/*
+  PS3_AUDIO_CONFIG
+  31            24 23           16 15            8 7             0
+ +-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-+
+ |0 0 0 0 0 0 0 0|0 0 0 0 0 0 0 0|0 0 0 0 0 0 0 C|0 0 0 0 0 0 0 0| CONFIG
+ +-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-+
+
+*/
+
+/* The CLEAR field cancels all pending transfers, and stops any running DMA
+   transfers.  Any interrupts associated with the canceled transfers
+   will occur as if the transfer had finished.
+   Since this bit is designed to recover from DMA related issues
+   which are caused by unpredictable situations, it is preferred to wait
+   for normal DMA transfer end without using this bit.
+*/
+#define PS3_AUDIO_CONFIG_CLEAR          (1 << 8)  /* RWIVF */
+
+/*
+  PS3_AUDIO_AX_MCTRL: Audio Port Mute Control Register
+
+ 31            24 23           16 15            8 7             0
+ +-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-+
+ |0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0|A|A|A|0 0 0 0 0 0 0|S|S|A|A|A|A| AX_MCTRL
+ +-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-+
+*/
+
+/* 3 Wire Audio Serial Output Channel Mutes (0..3)  */
+#define PS3_AUDIO_AX_MCTRL_ASOMT(n)     (1 << (3 - (n)))  /* RWIVF */
+#define PS3_AUDIO_AX_MCTRL_ASO3MT       (1 << 0)          /* RWIVF */
+#define PS3_AUDIO_AX_MCTRL_ASO2MT       (1 << 1)          /* RWIVF */
+#define PS3_AUDIO_AX_MCTRL_ASO1MT       (1 << 2)          /* RWIVF */
+#define PS3_AUDIO_AX_MCTRL_ASO0MT       (1 << 3)          /* RWIVF */
+
+/* S/PDIF mutes (0,1)*/
+#define PS3_AUDIO_AX_MCTRL_SPOMT(n)     (1 << (5 - (n)))  /* RWIVF */
+#define PS3_AUDIO_AX_MCTRL_SPO1MT       (1 << 4)          /* RWIVF */
+#define PS3_AUDIO_AX_MCTRL_SPO0MT       (1 << 5)          /* RWIVF */
+
+/* All 3 Wire Serial Outputs Mute */
+#define PS3_AUDIO_AX_MCTRL_AASOMT       (1 << 13)         /* RWIVF */
+
+/* All S/PDIF Mute */
+#define PS3_AUDIO_AX_MCTRL_ASPOMT       (1 << 14)         /* RWIVF */
+
+/* All Audio Outputs Mute */
+#define PS3_AUDIO_AX_MCTRL_AAOMT        (1 << 15)         /* RWIVF */
+
+/*
+  S/PDIF Outputs Buffer Read/Write Pointer Register
+
+ 31            24 23           16 15            8 7             0
+ +-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-+
+ |0 0 0 0 0 0 0 0|0|SPO0B|0|SPO1B|0 0 0 0 0 0 0 0|0|SPO0B|0|SPO1B| AX_ISBP
+ +-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-+
+
+*/
+/*
+ S/PDIF Output Channel Read Buffer Numbers
+ Buffer number is  value of field.
+ Indicates current read access buffer ID from Audio Data
+ Transfer controller of S/PDIF Output
+*/
+
+#define PS3_AUDIO_AX_ISBP_SPOBRN_MASK(n) (0x7 << 4 * (1 - (n))) /* R-IUF */
+#define PS3_AUDIO_AX_ISBP_SPO1BRN_MASK		(0x7 << 0) /* R-IUF */
+#define PS3_AUDIO_AX_ISBP_SPO0BRN_MASK		(0x7 << 4) /* R-IUF */
+
+/*
+S/PDIF Output Channel Buffer Write Numbers
+Indicates current write access buffer ID from bus master.
+*/
+#define PS3_AUDIO_AX_ISBP_SPOBWN_MASK(n) (0x7 <<  4 * (5 - (n))) /* R-IUF */
+#define PS3_AUDIO_AX_ISBP_SPO1BWN_MASK		(0x7 << 16) /* R-IUF */
+#define PS3_AUDIO_AX_ISBP_SPO0BWN_MASK		(0x7 << 20) /* R-IUF */
+
+/*
+  3 Wire Audio Serial Outputs Buffer Read/Write
+  Pointer Register
+  Buffer number is  value of field
+
+ 31            24 23           16 15            8 7             0
+ +-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-+
+ |0|ASO0B|0|ASO1B|0|ASO2B|0|ASO3B|0|ASO0B|0|ASO1B|0|ASO2B|0|ASO3B| AX_AOBP
+ +-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-+
+*/
+
+/*
+3 Wire Audio Serial Output Channel Buffer Read Numbers
+Indicates current read access buffer Id from Audio Data Transfer
+Controller of 3 Wire Audio Serial Output Channels
+*/
+#define PS3_AUDIO_AX_AOBP_ASOBRN_MASK(n) (0x7 << 4 * (3 - (n))) /* R-IUF */
+
+#define PS3_AUDIO_AX_AOBP_ASO3BRN_MASK	(0x7 << 0) /* R-IUF */
+#define PS3_AUDIO_AX_AOBP_ASO2BRN_MASK	(0x7 << 4) /* R-IUF */
+#define PS3_AUDIO_AX_AOBP_ASO1BRN_MASK	(0x7 << 8) /* R-IUF */
+#define PS3_AUDIO_AX_AOBP_ASO0BRN_MASK	(0x7 << 12) /* R-IUF */
+
+/*
+3 Wire Audio Serial Output Channel Buffer Write Numbers
+Indicates current write access buffer ID from bus master.
+*/
+#define PS3_AUDIO_AX_AOBP_ASOBWN_MASK(n) (0x7 << 4 * (7 - (n))) /* R-IUF */
+
+#define PS3_AUDIO_AX_AOBP_ASO3BWN_MASK        (0x7 << 16) /* R-IUF */
+#define PS3_AUDIO_AX_AOBP_ASO2BWN_MASK        (0x7 << 20) /* R-IUF */
+#define PS3_AUDIO_AX_AOBP_ASO1BWN_MASK        (0x7 << 24) /* R-IUF */
+#define PS3_AUDIO_AX_AOBP_ASO0BWN_MASK        (0x7 << 28) /* R-IUF */
+
+
+
+/*
+Audio Port Interrupt Condition Register
+For the fields in this register, the following values apply:
+0 = Interrupt is generated every interrupt event.
+1 = Interrupt is generated every 2 interrupt events.
+2 = Interrupt is generated every 4 interrupt events.
+3 = Reserved
+
+
+ 31            24 23           16 15            8 7             0
+ +-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-+
+ |0 0 0 0 0 0 0 0|0 0|SPO|0 0|SPO|0 0|AAS|0 0 0 0 0 0 0 0 0 0 0 0| AX_IC
+ +-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-+
+*/
+/*
+All 3-Wire Audio Serial Outputs Interrupt Mode
+Configures the Interrupt and Signal Notification
+condition of all 3-wire Audio Serial Outputs.
+*/
+#define PS3_AUDIO_AX_IC_AASOIMD_MASK          (0x3 << 12) /* RWIVF */
+#define PS3_AUDIO_AX_IC_AASOIMD_EVERY1        (0x0 << 12) /* RWI-V */
+#define PS3_AUDIO_AX_IC_AASOIMD_EVERY2        (0x1 << 12) /* RW--V */
+#define PS3_AUDIO_AX_IC_AASOIMD_EVERY4        (0x2 << 12) /* RW--V */
+
+/*
+S/PDIF Output Channel Interrupt Modes
+Configures the Interrupt and signal Notification
+conditions of S/PDIF output channels.
+*/
+#define PS3_AUDIO_AX_IC_SPO1IMD_MASK          (0x3 << 16) /* RWIVF */
+#define PS3_AUDIO_AX_IC_SPO1IMD_EVERY1        (0x0 << 16) /* RWI-V */
+#define PS3_AUDIO_AX_IC_SPO1IMD_EVERY2        (0x1 << 16) /* RW--V */
+#define PS3_AUDIO_AX_IC_SPO1IMD_EVERY4        (0x2 << 16) /* RW--V */
+
+#define PS3_AUDIO_AX_IC_SPO0IMD_MASK          (0x3 << 20) /* RWIVF */
+#define PS3_AUDIO_AX_IC_SPO0IMD_EVERY1        (0x0 << 20) /* RWI-V */
+#define PS3_AUDIO_AX_IC_SPO0IMD_EVERY2        (0x1 << 20) /* RW--V */
+#define PS3_AUDIO_AX_IC_SPO0IMD_EVERY4        (0x2 << 20) /* RW--V */
+
+/*
+Audio Port interrupt Enable Register
+Configures whether to enable or disable each Interrupt Generation.
+
+
+ 31            24 23           16 15            8 7             0
+ +-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-+
+ |0 0 0 0 0 0 0 0|S|S|0 0|A|A|A|A|0 0 0 0|S|S|0 0|S|S|0 0|A|A|A|A| AX_IE
+ +-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-+
+
+*/
+
+/*
+3 Wire Audio Serial Output Channel Buffer Underflow
+Interrupt Enables
+Select enable/disable of Buffer Underflow Interrupts for
+3-Wire Audio Serial Output Channels
+DISABLED=Interrupt generation disabled.
+*/
+#define PS3_AUDIO_AX_IE_ASOBUIE(n)      (1 << (3 - (n))) /* RWIVF */
+#define PS3_AUDIO_AX_IE_ASO3BUIE        (1 << 0) /* RWIVF */
+#define PS3_AUDIO_AX_IE_ASO2BUIE        (1 << 1) /* RWIVF */
+#define PS3_AUDIO_AX_IE_ASO1BUIE        (1 << 2) /* RWIVF */
+#define PS3_AUDIO_AX_IE_ASO0BUIE        (1 << 3) /* RWIVF */
+
+/* S/PDIF Output Channel Buffer Underflow Interrupt Enables */
+
+#define PS3_AUDIO_AX_IE_SPOBUIE(n)      (1 << (7 - (n))) /* RWIVF */
+#define PS3_AUDIO_AX_IE_SPO1BUIE        (1 << 6) /* RWIVF */
+#define PS3_AUDIO_AX_IE_SPO0BUIE        (1 << 7) /* RWIVF */
+
+/* S/PDIF Output Channel One Block Transfer Completion Interrupt Enables */
+
+#define PS3_AUDIO_AX_IE_SPOBTCIE(n)     (1 << (11 - (n))) /* RWIVF */
+#define PS3_AUDIO_AX_IE_SPO1BTCIE       (1 << 10) /* RWIVF */
+#define PS3_AUDIO_AX_IE_SPO0BTCIE       (1 << 11) /* RWIVF */
+
+/* 3-Wire Audio Serial Output Channel Buffer Empty Interrupt Enables */
+
+#define PS3_AUDIO_AX_IE_ASOBEIE(n)      (1 << (19 - (n))) /* RWIVF */
+#define PS3_AUDIO_AX_IE_ASO3BEIE        (1 << 16) /* RWIVF */
+#define PS3_AUDIO_AX_IE_ASO2BEIE        (1 << 17) /* RWIVF */
+#define PS3_AUDIO_AX_IE_ASO1BEIE        (1 << 18) /* RWIVF */
+#define PS3_AUDIO_AX_IE_ASO0BEIE        (1 << 19) /* RWIVF */
+
+/* S/PDIF Output Channel Buffer Empty Interrupt Enables */
+
+#define PS3_AUDIO_AX_IE_SPOBEIE(n)      (1 << (23 - (n))) /* RWIVF */
+#define PS3_AUDIO_AX_IE_SPO1BEIE        (1 << 22) /* RWIVF */
+#define PS3_AUDIO_AX_IE_SPO0BEIE        (1 << 23) /* RWIVF */
+
+/*
+Audio Port Interrupt Status Register
+Indicates Interrupt status, which interrupt has occurred, and can clear
+each interrupt in this register.
+Writing 1b to a field containing 1b clears field and de-asserts interrupt.
+Writing 0b to a field has no effect.
+Field vaules are the following:
+0 - Interrupt hasn't occurred.
+1 - Interrupt has occurred.
+
+
+ 31            24 23           16 15            8 7             0
+ +-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-+
+ |0 0 0 0 0 0 0 0|S|S|0 0|A|A|A|A|0 0 0 0|S|S|0 0|S|S|0 0|A|A|A|A| AX_IS
+ +-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-+
+
+ Bit assignment are same as AX_IE
+*/
+
+/*
+Audio Output Master Control Register
+Configures Master Clock and other master Audio Output Settings
+
+
+ 31            24 23           16 15            8 7             0
+ +-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-+
+ |0|SCKSE|0|SCKSE|  MR0  |  MR1  |MCL|MCL|0 0 0 0|0 0 0 0 0 0 0 0| AO_MCTRL
+ +-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-+
+*/
+
+/*
+MCLK Output Control
+Controls mclko[1] output.
+0 - Disable output (fixed at High)
+1 - Output clock produced by clock selected
+with scksel1 by mr1
+2 - Reserved
+3 - Reserved
+*/
+
+#define PS3_AUDIO_AO_MCTRL_MCLKC1_MASK		(0x3 << 12) /* RWIVF */
+#define PS3_AUDIO_AO_MCTRL_MCLKC1_DISABLED	(0x0 << 12) /* RWI-V */
+#define PS3_AUDIO_AO_MCTRL_MCLKC1_ENABLED	(0x1 << 12) /* RW--V */
+#define PS3_AUDIO_AO_MCTRL_MCLKC1_RESVD2	(0x2 << 12) /* RW--V */
+#define PS3_AUDIO_AO_MCTRL_MCLKC1_RESVD3	(0x3 << 12) /* RW--V */
+
+/*
+MCLK Output Control
+Controls mclko[0] output.
+0 - Disable output (fixed at High)
+1 - Output clock produced by clock selected
+with SCKSEL0 by MR0
+2 - Reserved
+3 - Reserved
+*/
+#define PS3_AUDIO_AO_MCTRL_MCLKC0_MASK		(0x3 << 14) /* RWIVF */
+#define PS3_AUDIO_AO_MCTRL_MCLKC0_DISABLED	(0x0 << 14) /* RWI-V */
+#define PS3_AUDIO_AO_MCTRL_MCLKC0_ENABLED	(0x1 << 14) /* RW--V */
+#define PS3_AUDIO_AO_MCTRL_MCLKC0_RESVD2	(0x2 << 14) /* RW--V */
+#define PS3_AUDIO_AO_MCTRL_MCLKC0_RESVD3	(0x3 << 14) /* RW--V */
+/*
+Master Clock Rate 1
+Sets the divide ration of Master Clock1 (clock output from
+mclko[1] for the input clock selected by scksel1.
+*/
+#define PS3_AUDIO_AO_MCTRL_MR1_MASK	(0xf << 16)
+#define PS3_AUDIO_AO_MCTRL_MR1_DEFAULT	(0x0 << 16) /* RWI-V */
+/*
+Master Clock Rate 0
+Sets the divide ratio of Master Clock0 (clock output from
+mclko[0] for the input clock selected by scksel0).
+*/
+#define PS3_AUDIO_AO_MCTRL_MR0_MASK	(0xf << 20) /* RWIVF */
+#define PS3_AUDIO_AO_MCTRL_MR0_DEFAULT	(0x0 << 20) /* RWI-V */
+/*
+System Clock Select 0/1
+Selects the system clock to be used as Master Clock 0/1
+Input the system clock that is appropriate for the sampling
+rate.
+*/
+#define PS3_AUDIO_AO_MCTRL_SCKSEL1_MASK		(0x7 << 24) /* RWIVF */
+#define PS3_AUDIO_AO_MCTRL_SCKSEL1_DEFAULT	(0x2 << 24) /* RWI-V */
+
+#define PS3_AUDIO_AO_MCTRL_SCKSEL0_MASK		(0x7 << 28) /* RWIVF */
+#define PS3_AUDIO_AO_MCTRL_SCKSEL0_DEFAULT	(0x2 << 28) /* RWI-V */
+
+
+/*
+3-Wire Audio Output Master Control Register
+Configures clock, 3-Wire Audio Serial Output Enable, and
+other 3-Wire Audio Serial Output Master Settings
+
+
+ 31            24 23           16 15            8 7             0
+ +-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-+
+ |A|A|A|A|0 0 0|A| ASOSR |0 0 0 0|A|A|A|A|A|A|0|1|0 0 0 0 0 0 0 0| AO_3WMCTRL
+ +-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-+
+*/
+
+
+/*
+LRCKO Polarity
+0 - Reserved
+1 - default
+*/
+#define PS3_AUDIO_AO_3WMCTRL_ASOPLRCK 		(1 << 8) /* RWIVF */
+#define PS3_AUDIO_AO_3WMCTRL_ASOPLRCK_DEFAULT	(1 << 8) /* RW--V */
+
+/* LRCK Output Disable */
+
+#define PS3_AUDIO_AO_3WMCTRL_ASOLRCKD		(1 << 10) /* RWIVF */
+#define PS3_AUDIO_AO_3WMCTRL_ASOLRCKD_ENABLED	(0 << 10) /* RW--V */
+#define PS3_AUDIO_AO_3WMCTRL_ASOLRCKD_DISABLED	(1 << 10) /* RWI-V */
+
+/* Bit Clock Output Disable */
+
+#define PS3_AUDIO_AO_3WMCTRL_ASOBCLKD		(1 << 11) /* RWIVF */
+#define PS3_AUDIO_AO_3WMCTRL_ASOBCLKD_ENABLED	(0 << 11) /* RW--V */
+#define PS3_AUDIO_AO_3WMCTRL_ASOBCLKD_DISABLED	(1 << 11) /* RWI-V */
+
+/*
+3-Wire Audio Serial Output Channel 0-3 Operational
+Status.  Each bit becomes 1 after each 3-Wire Audio
+Serial Output Channel N is in action by setting 1 to
+asoen.
+Each bit becomes 0 after each 3-Wire Audio Serial Output
+Channel N is out of action by setting 0 to asoen.
+*/
+#define PS3_AUDIO_AO_3WMCTRL_ASORUN(n)		(1 << (15 - (n))) /* R-IVF */
+#define PS3_AUDIO_AO_3WMCTRL_ASORUN_STOPPED(n)	(0 << (15 - (n))) /* R-I-V */
+#define PS3_AUDIO_AO_3WMCTRL_ASORUN_RUNNING(n)	(1 << (15 - (n))) /* R---V */
+#define PS3_AUDIO_AO_3WMCTRL_ASORUN0		\
+	PS3_AUDIO_AO_3WMCTRL_ASORUN(0)
+#define PS3_AUDIO_AO_3WMCTRL_ASORUN0_STOPPED	\
+	PS3_AUDIO_AO_3WMCTRL_ASORUN_STOPPED(0)
+#define PS3_AUDIO_AO_3WMCTRL_ASORUN0_RUNNING	\
+	PS3_AUDIO_AO_3WMCTRL_ASORUN_RUNNING(0)
+#define PS3_AUDIO_AO_3WMCTRL_ASORUN1		\
+	PS3_AUDIO_AO_3WMCTRL_ASORUN(1)
+#define PS3_AUDIO_AO_3WMCTRL_ASORUN1_STOPPED	\
+	PS3_AUDIO_AO_3WMCTRL_ASORUN_STOPPED(1)
+#define PS3_AUDIO_AO_3WMCTRL_ASORUN1_RUNNING	\
+	PS3_AUDIO_AO_3WMCTRL_ASORUN_RUNNING(1)
+#define PS3_AUDIO_AO_3WMCTRL_ASORUN2		\
+	PS3_AUDIO_AO_3WMCTRL_ASORUN(2)
+#define PS3_AUDIO_AO_3WMCTRL_ASORUN2_STOPPED	\
+	PS3_AUDIO_AO_3WMCTRL_ASORUN_STOPPED(2)
+#define PS3_AUDIO_AO_3WMCTRL_ASORUN2_RUNNING	\
+	PS3_AUDIO_AO_3WMCTRL_ASORUN_RUNNING(2)
+#define PS3_AUDIO_AO_3WMCTRL_ASORUN3		\
+	PS3_AUDIO_AO_3WMCTRL_ASORUN(3)
+#define PS3_AUDIO_AO_3WMCTRL_ASORUN3_STOPPED	\
+	PS3_AUDIO_AO_3WMCTRL_ASORUN_STOPPED(3)
+#define PS3_AUDIO_AO_3WMCTRL_ASORUN3_RUNNING	\
+	PS3_AUDIO_AO_3WMCTRL_ASORUN_RUNNING(3)
+
+/*
+Sampling Rate
+Specifies the divide ratio of the bit clock (clock output
+from bclko) used by the 3-wire Audio Output Clock, which
+is applied to the master clock selected by mcksel.
+Data output is synchronized with this clock.
+*/
+#define PS3_AUDIO_AO_3WMCTRL_ASOSR_MASK		(0xf << 20) /* RWIVF */
+#define PS3_AUDIO_AO_3WMCTRL_ASOSR_DIV2		(0x1 << 20) /* RWI-V */
+#define PS3_AUDIO_AO_3WMCTRL_ASOSR_DIV4		(0x2 << 20) /* RW--V */
+#define PS3_AUDIO_AO_3WMCTRL_ASOSR_DIV8		(0x4 << 20) /* RW--V */
+#define PS3_AUDIO_AO_3WMCTRL_ASOSR_DIV12	(0x6 << 20) /* RW--V */
+
+/*
+Master Clock Select
+0 - Master Clock 0
+1 - Master Clock 1
+*/
+#define PS3_AUDIO_AO_3WMCTRL_ASOMCKSEL		(1 << 24) /* RWIVF */
+#define PS3_AUDIO_AO_3WMCTRL_ASOMCKSEL_CLK0	(0 << 24) /* RWI-V */
+#define PS3_AUDIO_AO_3WMCTRL_ASOMCKSEL_CLK1	(1 << 24) /* RW--V */
+
+/*
+Enables and disables 4ch 3-Wire Audio Serial Output
+operation.  Each Bit from 0 to 3 corresponds to an
+output channel, which means that each output channel
+can be enabled or disabled individually.  When
+multiple channels are enabled at the same time, output
+operations are performed in synchronization.
+Bit 0 - Output Channel 0 (SDOUT[0])
+Bit 1 - Output Channel 1 (SDOUT[1])
+Bit 2 - Output Channel 2 (SDOUT[2])
+Bit 3 - Output Channel 3 (SDOUT[3])
+*/
+#define PS3_AUDIO_AO_3WMCTRL_ASOEN(n)		(1 << (31 - (n))) /* RWIVF */
+#define PS3_AUDIO_AO_3WMCTRL_ASOEN_DISABLED(n)	(0 << (31 - (n))) /* RWI-V */
+#define PS3_AUDIO_AO_3WMCTRL_ASOEN_ENABLED(n)	(1 << (31 - (n))) /* RW--V */
+
+#define PS3_AUDIO_AO_3WMCTRL_ASOEN0 \
+	PS3_AUDIO_AO_3WMCTRL_ASOEN(0) /* RWIVF */
+#define PS3_AUDIO_AO_3WMCTRL_ASOEN0_DISABLED \
+	PS3_AUDIO_AO_3WMCTRL_ASOEN_DISABLED(0) /* RWI-V */
+#define PS3_AUDIO_AO_3WMCTRL_ASOEN0_ENABLED \
+	PS3_AUDIO_AO_3WMCTRL_ASOEN_ENABLED(0) /* RW--V */
+#define PS3_AUDIO_A1_3WMCTRL_ASOEN0 \
+	PS3_AUDIO_AO_3WMCTRL_ASOEN(1) /* RWIVF */
+#define PS3_AUDIO_A1_3WMCTRL_ASOEN0_DISABLED \
+	PS3_AUDIO_AO_3WMCTRL_ASOEN_DISABLED(1) /* RWI-V */
+#define PS3_AUDIO_A1_3WMCTRL_ASOEN0_ENABLED \
+	PS3_AUDIO_AO_3WMCTRL_ASOEN_ENABLED(1) /* RW--V */
+#define PS3_AUDIO_A2_3WMCTRL_ASOEN0 \
+	PS3_AUDIO_AO_3WMCTRL_ASOEN(2) /* RWIVF */
+#define PS3_AUDIO_A2_3WMCTRL_ASOEN0_DISABLED \
+	PS3_AUDIO_AO_3WMCTRL_ASOEN_DISABLED(2) /* RWI-V */
+#define PS3_AUDIO_A2_3WMCTRL_ASOEN0_ENABLED \
+	PS3_AUDIO_AO_3WMCTRL_ASOEN_ENABLED(2) /* RW--V */
+#define PS3_AUDIO_A3_3WMCTRL_ASOEN0 \
+	PS3_AUDIO_AO_3WMCTRL_ASOEN(3) /* RWIVF */
+#define PS3_AUDIO_A3_3WMCTRL_ASOEN0_DISABLED \
+	PS3_AUDIO_AO_3WMCTRL_ASOEN_DISABLED(3) /* RWI-V */
+#define PS3_AUDIO_A3_3WMCTRL_ASOEN0_ENABLED \
+	PS3_AUDIO_AO_3WMCTRL_ASOEN_ENABLED(3) /* RW--V */
+
+/*
+3-Wire Audio Serial output Channel 0-3 Control Register
+Configures settings for 3-Wire Serial Audio Output Channel 0-3
+
+
+ 31            24 23           16 15            8 7             0
+ +-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-+
+ |0 0 0 0 0 0 0 0 0 0 0 0 0 0 0|A|0 0 0 0|A|0|ASO|0 0 0|0|0|0|0|0| AO_3WCTRL
+ +-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-+
+
+*/
+/*
+Data Bit Mode
+Specifies the number of data bits
+0 - 16 bits
+1 - reserved
+2 - 20 bits
+3 - 24 bits
+*/
+#define PS3_AUDIO_AO_3WCTRL_ASODB_MASK	(0x3 << 8) /* RWIVF */
+#define PS3_AUDIO_AO_3WCTRL_ASODB_16BIT	(0x0 << 8) /* RWI-V */
+#define PS3_AUDIO_AO_3WCTRL_ASODB_RESVD	(0x1 << 8) /* RWI-V */
+#define PS3_AUDIO_AO_3WCTRL_ASODB_20BIT	(0x2 << 8) /* RW--V */
+#define PS3_AUDIO_AO_3WCTRL_ASODB_24BIT	(0x3 << 8) /* RW--V */
+/*
+Data Format Mode
+Specifies the data format where (LSB side or MSB) the data(in 20 bit
+or 24 bit resolution mode) is put in a 32 bit field.
+0 - Data put on LSB side
+1 - Data put on MSB side
+*/
+#define PS3_AUDIO_AO_3WCTRL_ASODF 	(1 << 11) /* RWIVF */
+#define PS3_AUDIO_AO_3WCTRL_ASODF_LSB	(0 << 11) /* RWI-V */
+#define PS3_AUDIO_AO_3WCTRL_ASODF_MSB	(1 << 11) /* RW--V */
+/*
+Buffer Reset
+Performs buffer reset.  Writing 1 to this bit initializes the
+corresponding 3-Wire Audio Output buffers(both L and R).
+*/
+#define PS3_AUDIO_AO_3WCTRL_ASOBRST 		(1 << 16) /* CWIVF */
+#define PS3_AUDIO_AO_3WCTRL_ASOBRST_IDLE	(0 << 16) /* -WI-V */
+#define PS3_AUDIO_AO_3WCTRL_ASOBRST_RESET	(1 << 16) /* -W--T */
+
+/*
+S/PDIF Audio Output Channel 0/1 Control Register
+Configures settings for S/PDIF Audio Output Channel 0/1.
+
+ 31            24 23           16 15            8 7             0
+ +-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-+
+ |S|0 0 0|S|0 0|S| SPOSR |0 0|SPO|0 0 0 0|S|0|SPO|0 0 0 0 0 0 0|S| AO_SPDCTRL
+ +-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-+
+*/
+/*
+Buffer reset.  Writing 1 to this bit initializes the
+corresponding S/PDIF output buffer pointer.
+*/
+#define PS3_AUDIO_AO_SPDCTRL_SPOBRST		(1 << 0) /* CWIVF */
+#define PS3_AUDIO_AO_SPDCTRL_SPOBRST_IDLE	(0 << 0) /* -WI-V */
+#define PS3_AUDIO_AO_SPDCTRL_SPOBRST_RESET	(1 << 0) /* -W--T */
+
+/*
+Data Bit Mode
+Specifies number of data bits
+0 - 16 bits
+1 - Reserved
+2 - 20 bits
+3 - 24 bits
+*/
+#define PS3_AUDIO_AO_SPDCTRL_SPODB_MASK		(0x3 << 8) /* RWIVF */
+#define PS3_AUDIO_AO_SPDCTRL_SPODB_16BIT	(0x0 << 8) /* RWI-V */
+#define PS3_AUDIO_AO_SPDCTRL_SPODB_RESVD	(0x1 << 8) /* RW--V */
+#define PS3_AUDIO_AO_SPDCTRL_SPODB_20BIT	(0x2 << 8) /* RW--V */
+#define PS3_AUDIO_AO_SPDCTRL_SPODB_24BIT	(0x3 << 8) /* RW--V */
+/*
+Data format Mode
+Specifies the data format, where (LSB side or MSB)
+the data(in 20 or 24 bit resolution) is put in the
+32 bit field.
+0 - LSB Side
+1 - MSB Side
+*/
+#define PS3_AUDIO_AO_SPDCTRL_SPODF	(1 << 11) /* RWIVF */
+#define PS3_AUDIO_AO_SPDCTRL_SPODF_LSB	(0 << 11) /* RWI-V */
+#define PS3_AUDIO_AO_SPDCTRL_SPODF_MSB	(1 << 11) /* RW--V */
+/*
+Source Select
+Specifies the source of the S/PDIF output.  When 0, output
+operation is controlled by 3wen[0] of AO_3WMCTRL register.
+The SR must have the same setting as the a0_3wmctrl reg.
+0 - 3-Wire Audio OUT Ch0 Buffer
+1 - S/PDIF buffer
+*/
+#define PS3_AUDIO_AO_SPDCTRL_SPOSS_MASK		(0x3 << 16) /* RWIVF */
+#define PS3_AUDIO_AO_SPDCTRL_SPOSS_3WEN		(0x0 << 16) /* RWI-V */
+#define PS3_AUDIO_AO_SPDCTRL_SPOSS_SPDIF	(0x1 << 16) /* RW--V */
+/*
+Sampling Rate
+Specifies the divide ratio of the bit clock (clock output
+from bclko) used by the S/PDIF Output Clock, which
+is applied to the master clock selected by mcksel.
+*/
+#define PS3_AUDIO_AO_SPDCTRL_SPOSR		(0xf << 20) /* RWIVF */
+#define PS3_AUDIO_AO_SPDCTRL_SPOSR_DIV2		(0x1 << 20) /* RWI-V */
+#define PS3_AUDIO_AO_SPDCTRL_SPOSR_DIV4		(0x2 << 20) /* RW--V */
+#define PS3_AUDIO_AO_SPDCTRL_SPOSR_DIV8		(0x4 << 20) /* RW--V */
+#define PS3_AUDIO_AO_SPDCTRL_SPOSR_DIV12	(0x6 << 20) /* RW--V */
+/*
+Master Clock Select
+0 - Master Clock 0
+1 - Master Clock 1
+*/
+#define PS3_AUDIO_AO_SPDCTRL_SPOMCKSEL		(1 << 24) /* RWIVF */
+#define PS3_AUDIO_AO_SPDCTRL_SPOMCKSEL_CLK0	(0 << 24) /* RWI-V */
+#define PS3_AUDIO_AO_SPDCTRL_SPOMCKSEL_CLK1	(1 << 24) /* RW--V */
+
+/*
+S/PDIF Output Channel Operational Status
+This bit becomes 1 after S/PDIF Output Channel is in
+action by setting 1 to spoen.  This bit becomes 0
+after S/PDIF Output Channel is out of action by setting
+0 to spoen.
+*/
+#define PS3_AUDIO_AO_SPDCTRL_SPORUN		(1 << 27) /* R-IVF */
+#define PS3_AUDIO_AO_SPDCTRL_SPORUN_STOPPED	(0 << 27) /* R-I-V */
+#define PS3_AUDIO_AO_SPDCTRL_SPORUN_RUNNING	(1 << 27) /* R---V */
+
+/*
+S/PDIF Audio Output Channel Output Enable
+Enables and disables output operation.  This bit is used
+only when sposs = 1
+*/
+#define PS3_AUDIO_AO_SPDCTRL_SPOEN		(1 << 31) /* RWIVF */
+#define PS3_AUDIO_AO_SPDCTRL_SPOEN_DISABLED	(0 << 31) /* RWI-V */
+#define PS3_AUDIO_AO_SPDCTRL_SPOEN_ENABLED	(1 << 31) /* RW--V */
+
+/*
+S/PDIF Audio Output Channel Channel Status
+Setting Registers.
+Configures channel status bit settings for each block
+(192 bits).
+Output is performed from the MSB(AO_SPDCS0 register bit 31).
+The same value is added for subframes within the same frame.
+ 31            24 23           16 15            8 7             0
+ +-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-+
+ |                             SPOCS                             | AO_SPDCS
+ +-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-+
+
+S/PDIF Audio Output Channel User Bit Setting
+Configures user bit settings for each block (384 bits).
+Output is performed from the MSB(ao_spdub0 register bit 31).
+
+
+ 31            24 23           16 15            8 7             0
+ +-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-+
+ |                             SPOUB                             | AO_SPDUB
+ +-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-+
+*/
+/*****************************************************************************
+ *
+ * DMAC register
+ *
+ *****************************************************************************/
+/*
+The PS3_AUDIO_KICK register is used to initiate a DMA transfer and monitor
+its status
+
+ 31            24 23           16 15            8 7             0
+ +-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-+
+ |0 0 0 0 0|STATU|0 0 0|  EVENT  |0 0 0 0 0 0 0 0 0 0 0 0 0 0 0|R| KICK
+ +-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-+
+*/
+/*
+The REQUEST field is written to ACTIVE to initiate a DMA request when EVENT
+occurs.
+It will return to the DONE state when the request is completed.
+The registers for a DMA channel should only be written if REQUEST is IDLE.
+*/
+
+#define PS3_AUDIO_KICK_REQUEST                (1 << 0) /* RWIVF */
+#define PS3_AUDIO_KICK_REQUEST_IDLE           (0 << 0) /* RWI-V */
+#define PS3_AUDIO_KICK_REQUEST_ACTIVE         (1 << 0) /* -W--T */
+
+/*
+ *The EVENT field is used to set the event in which
+ *the DMA request becomes active.
+ */
+#define PS3_AUDIO_KICK_EVENT_MASK             (0x1f << 16) /* RWIVF */
+#define PS3_AUDIO_KICK_EVENT_ALWAYS           (0x00 << 16) /* RWI-V */
+#define PS3_AUDIO_KICK_EVENT_SERIALOUT0_EMPTY (0x01 << 16) /* RW--V */
+#define PS3_AUDIO_KICK_EVENT_SERIALOUT0_UNDERFLOW	(0x02 << 16) /* RW--V */
+#define PS3_AUDIO_KICK_EVENT_SERIALOUT1_EMPTY		(0x03 << 16) /* RW--V */
+#define PS3_AUDIO_KICK_EVENT_SERIALOUT1_UNDERFLOW	(0x04 << 16) /* RW--V */
+#define PS3_AUDIO_KICK_EVENT_SERIALOUT2_EMPTY		(0x05 << 16) /* RW--V */
+#define PS3_AUDIO_KICK_EVENT_SERIALOUT2_UNDERFLOW	(0x06 << 16) /* RW--V */
+#define PS3_AUDIO_KICK_EVENT_SERIALOUT3_EMPTY		(0x07 << 16) /* RW--V */
+#define PS3_AUDIO_KICK_EVENT_SERIALOUT3_UNDERFLOW	(0x08 << 16) /* RW--V */
+#define PS3_AUDIO_KICK_EVENT_SPDIF0_BLOCKTRANSFERCOMPLETE \
+	(0x09 << 16) /* RW--V */
+#define PS3_AUDIO_KICK_EVENT_SPDIF0_UNDERFLOW		(0x0A << 16) /* RW--V */
+#define PS3_AUDIO_KICK_EVENT_SPDIF0_EMPTY		(0x0B << 16) /* RW--V */
+#define PS3_AUDIO_KICK_EVENT_SPDIF1_BLOCKTRANSFERCOMPLETE \
+	(0x0C << 16) /* RW--V */
+#define PS3_AUDIO_KICK_EVENT_SPDIF1_UNDERFLOW		(0x0D << 16) /* RW--V */
+#define PS3_AUDIO_KICK_EVENT_SPDIF1_EMPTY		(0x0E << 16) /* RW--V */
+
+#define PS3_AUDIO_KICK_EVENT_AUDIO_DMA(n) \
+	((0x13 + (n)) << 16) /* RW--V */
+#define PS3_AUDIO_KICK_EVENT_AUDIO_DMA0         (0x13 << 16) /* RW--V */
+#define PS3_AUDIO_KICK_EVENT_AUDIO_DMA1         (0x14 << 16) /* RW--V */
+#define PS3_AUDIO_KICK_EVENT_AUDIO_DMA2         (0x15 << 16) /* RW--V */
+#define PS3_AUDIO_KICK_EVENT_AUDIO_DMA3         (0x16 << 16) /* RW--V */
+#define PS3_AUDIO_KICK_EVENT_AUDIO_DMA4         (0x17 << 16) /* RW--V */
+#define PS3_AUDIO_KICK_EVENT_AUDIO_DMA5         (0x18 << 16) /* RW--V */
+#define PS3_AUDIO_KICK_EVENT_AUDIO_DMA6         (0x19 << 16) /* RW--V */
+#define PS3_AUDIO_KICK_EVENT_AUDIO_DMA7         (0x1A << 16) /* RW--V */
+#define PS3_AUDIO_KICK_EVENT_AUDIO_DMA8         (0x1B << 16) /* RW--V */
+#define PS3_AUDIO_KICK_EVENT_AUDIO_DMA9         (0x1C << 16) /* RW--V */
+
+/*
+The STATUS field can be used to monitor the progress of a DMA request.
+DONE indicates the previous request has completed.
+EVENT indicates that the DMA engine is waiting for the EVENT to occur.
+PENDING indicates that the DMA engine has not started processing this
+request, but the EVENT has occurred.
+DMA indicates that the data transfer is in progress.
+NOTIFY indicates that the notifier signalling end of transfer is being written.
+CLEAR indicated that the previous transfer was cleared.
+ERROR indicates the previous transfer requested an unsupported
+source/destination combination.
+*/
+
+#define PS3_AUDIO_KICK_STATUS_MASK	(0x7 << 24) /* R-IVF */
+#define PS3_AUDIO_KICK_STATUS_DONE	(0x0 << 24) /* R-I-V */
+#define PS3_AUDIO_KICK_STATUS_EVENT	(0x1 << 24) /* R---V */
+#define PS3_AUDIO_KICK_STATUS_PENDING	(0x2 << 24) /* R---V */
+#define PS3_AUDIO_KICK_STATUS_DMA	(0x3 << 24) /* R---V */
+#define PS3_AUDIO_KICK_STATUS_NOTIFY	(0x4 << 24) /* R---V */
+#define PS3_AUDIO_KICK_STATUS_CLEAR	(0x5 << 24) /* R---V */
+#define PS3_AUDIO_KICK_STATUS_ERROR	(0x6 << 24) /* R---V */
+
+/*
+The PS3_AUDIO_SOURCE register specifies the source address for transfers.
+
+
+ 31            24 23           16 15            8 7             0
+ +-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-+
+ |                      START                      |0 0 0 0 0|TAR| SOURCE
+ +-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-+
+*/
+
+/*
+The Audio DMA engine uses 128-byte transfers, thus the address must be aligned
+to a 128 byte boundary.  The low seven bits are assumed to be 0.
+*/
+
+#define PS3_AUDIO_SOURCE_START_MASK	(0x01FFFFFF << 7) /* RWIUF */
+
+/*
+The TARGET field specifies the memory space containing the source address.
+*/
+
+#define PS3_AUDIO_SOURCE_TARGET_MASK 		(3 << 0) /* RWIVF */
+#define PS3_AUDIO_SOURCE_TARGET_SYSTEM_MEMORY	(2 << 0) /* RW--V */
+
+/*
+The PS3_AUDIO_DEST register specifies the destination address for transfers.
+
+
+ 31            24 23           16 15            8 7             0
+ +-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-+
+ |                      START                      |0 0 0 0 0|TAR| DEST
+ +-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-+
+*/
+
+/*
+The Audio DMA engine uses 128-byte transfers, thus the address must be aligned
+to a 128 byte boundary.  The low seven bits are assumed to be 0.
+*/
+
+#define PS3_AUDIO_DEST_START_MASK	(0x01FFFFFF << 7) /* RWIUF */
+
+/*
+The TARGET field specifies the memory space containing the destination address
+AUDIOFIFO = Audio WriteData FIFO,
+*/
+
+#define PS3_AUDIO_DEST_TARGET_MASK		(3 << 0) /* RWIVF */
+#define PS3_AUDIO_DEST_TARGET_AUDIOFIFO		(1 << 0) /* RW--V */
+
+/*
+PS3_AUDIO_DMASIZE specifies the number of 128-byte blocks + 1 to transfer.
+So a value of 0 means 128-bytes will get transferred.
+
+
+ 31            24 23           16 15            8 7             0
+ +-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-+
+ |0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0|   BLOCKS    | DMASIZE
+ +-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-|-+-+-+-+-+-+-+-+
+*/
+
+
+#define PS3_AUDIO_DMASIZE_BLOCKS_MASK 	(0x7f << 0) /* RWIUF */
+
+/*
+ * source/destination address for internal fifos
+ */
+#define PS3_AUDIO_AO_3W_LDATA(n)	(0x1000 + (0x100 * (n)))
+#define PS3_AUDIO_AO_3W_RDATA(n)	(0x1080 + (0x100 * (n)))
+
+#define PS3_AUDIO_AO_SPD_DATA(n)	(0x2000 + (0x400 * (n)))
+
+
+/*
+ * field attiribute
+ *
+ *	Read
+ *	  ' ' = Other Information
+ *	  '-' = Field is part of a write-only register
+ *	  'C' = Value read is always the same, constant value line follows (C)
+ *	  'R' = Value is read
+ *
+ *	Write
+ *	  ' ' = Other Information
+ *	  '-' = Must not be written (D), value ignored when written (R,A,F)
+ *	  'W' = Can be written
+ *
+ *	Internal State
+ *	  ' ' = Other Information
+ *	  '-' = No internal state
+ *	  'X' = Internal state, initial value is unknown
+ *	  'I' = Internal state, initial value is known and follows (I)
+ *
+ *	Declaration/Size
+ *	  ' ' = Other Information
+ *	  '-' = Does Not Apply
+ *	  'V' = Type is void
+ *	  'U' = Type is unsigned integer
+ *	  'S' = Type is signed integer
+ *	  'F' = Type is IEEE floating point
+ *	  '1' = Byte size (008)
+ *	  '2' = Short size (016)
+ *	  '3' = Three byte size (024)
+ *	  '4' = Word size (032)
+ *	  '8' = Double size (064)
+ *
+ *	Define Indicator
+ *	  ' ' = Other Information
+ *	  'D' = Device
+ *	  'M' = Memory
+ *	  'R' = Register
+ *	  'A' = Array of Registers
+ *	  'F' = Field
+ *	  'V' = Value
+ *	  'T' = Task
+ */
+
diff --git a/src/kernel/linux/v4.14/sound/ppc/tumbler.c b/src/kernel/linux/v4.14/sound/ppc/tumbler.c
new file mode 100644
index 0000000..0779a29
--- /dev/null
+++ b/src/kernel/linux/v4.14/sound/ppc/tumbler.c
@@ -0,0 +1,1491 @@
+/*
+ * PMac Tumbler/Snapper lowlevel functions
+ *
+ * Copyright (c) by 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
+ *
+ *   Rene Rebe <rene.rebe@gmx.net>:
+ *     * update from shadow registers on wakeup and headphone plug
+ *     * automatically toggle DRC on headphone plug
+ *	
+ */
+
+
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/i2c.h>
+#include <linux/kmod.h>
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <linux/string.h>
+#include <linux/of_irq.h>
+#include <linux/io.h>
+#include <sound/core.h>
+#include <asm/irq.h>
+#include <asm/machdep.h>
+#include <asm/pmac_feature.h>
+#include "pmac.h"
+#include "tumbler_volume.h"
+
+#undef DEBUG
+
+#ifdef DEBUG
+#define DBG(fmt...) printk(KERN_DEBUG fmt)
+#else
+#define DBG(fmt...)
+#endif
+
+#define IS_G4DA (of_machine_is_compatible("PowerMac3,4"))
+
+/* i2c address for tumbler */
+#define TAS_I2C_ADDR	0x34
+
+/* registers */
+#define TAS_REG_MCS	0x01	/* main control */
+#define TAS_REG_DRC	0x02
+#define TAS_REG_VOL	0x04
+#define TAS_REG_TREBLE	0x05
+#define TAS_REG_BASS	0x06
+#define TAS_REG_INPUT1	0x07
+#define TAS_REG_INPUT2	0x08
+
+/* tas3001c */
+#define TAS_REG_PCM	TAS_REG_INPUT1
+ 
+/* tas3004 */
+#define TAS_REG_LMIX	TAS_REG_INPUT1
+#define TAS_REG_RMIX	TAS_REG_INPUT2
+#define TAS_REG_MCS2	0x43		/* main control 2 */
+#define TAS_REG_ACS	0x40		/* analog control */
+
+/* mono volumes for tas3001c/tas3004 */
+enum {
+	VOL_IDX_PCM_MONO, /* tas3001c only */
+	VOL_IDX_BASS, VOL_IDX_TREBLE,
+	VOL_IDX_LAST_MONO
+};
+
+/* stereo volumes for tas3004 */
+enum {
+	VOL_IDX_PCM, VOL_IDX_PCM2, VOL_IDX_ADC,
+	VOL_IDX_LAST_MIX
+};
+
+struct pmac_gpio {
+	unsigned int addr;
+	u8 active_val;
+	u8 inactive_val;
+	u8 active_state;
+};
+
+struct pmac_tumbler {
+	struct pmac_keywest i2c;
+	struct pmac_gpio audio_reset;
+	struct pmac_gpio amp_mute;
+	struct pmac_gpio line_mute;
+	struct pmac_gpio line_detect;
+	struct pmac_gpio hp_mute;
+	struct pmac_gpio hp_detect;
+	int headphone_irq;
+	int lineout_irq;
+	unsigned int save_master_vol[2];
+	unsigned int master_vol[2];
+	unsigned int save_master_switch[2];
+	unsigned int master_switch[2];
+	unsigned int mono_vol[VOL_IDX_LAST_MONO];
+	unsigned int mix_vol[VOL_IDX_LAST_MIX][2]; /* stereo volumes for tas3004 */
+	int drc_range;
+	int drc_enable;
+	int capture_source;
+	int anded_reset;
+	int auto_mute_notify;
+	int reset_on_sleep;
+	u8  acs;
+};
+
+
+/*
+ */
+
+static int send_init_client(struct pmac_keywest *i2c, unsigned int *regs)
+{
+	while (*regs > 0) {
+		int err, count = 10;
+		do {
+			err = i2c_smbus_write_byte_data(i2c->client,
+							regs[0], regs[1]);
+			if (err >= 0)
+				break;
+			DBG("(W) i2c error %d\n", err);
+			mdelay(10);
+		} while (count--);
+		if (err < 0)
+			return -ENXIO;
+		regs += 2;
+	}
+	return 0;
+}
+
+
+static int tumbler_init_client(struct pmac_keywest *i2c)
+{
+	static unsigned int regs[] = {
+		/* normal operation, SCLK=64fps, i2s output, i2s input, 16bit width */
+		TAS_REG_MCS, (1<<6)|(2<<4)|(2<<2)|0,
+		0, /* terminator */
+	};
+	DBG("(I) tumbler init client\n");
+	return send_init_client(i2c, regs);
+}
+
+static int snapper_init_client(struct pmac_keywest *i2c)
+{
+	static unsigned int regs[] = {
+		/* normal operation, SCLK=64fps, i2s output, 16bit width */
+		TAS_REG_MCS, (1<<6)|(2<<4)|0,
+		/* normal operation, all-pass mode */
+		TAS_REG_MCS2, (1<<1),
+		/* normal output, no deemphasis, A input, power-up, line-in */
+		TAS_REG_ACS, 0,
+		0, /* terminator */
+	};
+	DBG("(I) snapper init client\n");
+	return send_init_client(i2c, regs);
+}
+	
+/*
+ * gpio access
+ */
+#define do_gpio_write(gp, val) \
+	pmac_call_feature(PMAC_FTR_WRITE_GPIO, NULL, (gp)->addr, val)
+#define do_gpio_read(gp) \
+	pmac_call_feature(PMAC_FTR_READ_GPIO, NULL, (gp)->addr, 0)
+#define tumbler_gpio_free(gp) /* NOP */
+
+static void write_audio_gpio(struct pmac_gpio *gp, int active)
+{
+	if (! gp->addr)
+		return;
+	active = active ? gp->active_val : gp->inactive_val;
+	do_gpio_write(gp, active);
+	DBG("(I) gpio %x write %d\n", gp->addr, active);
+}
+
+static int check_audio_gpio(struct pmac_gpio *gp)
+{
+	int ret;
+
+	if (! gp->addr)
+		return 0;
+
+	ret = do_gpio_read(gp);
+
+	return (ret & 0x1) == (gp->active_val & 0x1);
+}
+
+static int read_audio_gpio(struct pmac_gpio *gp)
+{
+	int ret;
+	if (! gp->addr)
+		return 0;
+	ret = do_gpio_read(gp);
+	ret = (ret & 0x02) !=0;
+	return ret == gp->active_state;
+}
+
+/*
+ * update master volume
+ */
+static int tumbler_set_master_volume(struct pmac_tumbler *mix)
+{
+	unsigned char block[6];
+	unsigned int left_vol, right_vol;
+  
+	if (! mix->i2c.client)
+		return -ENODEV;
+  
+	if (! mix->master_switch[0])
+		left_vol = 0;
+	else {
+		left_vol = mix->master_vol[0];
+		if (left_vol >= ARRAY_SIZE(master_volume_table))
+			left_vol = ARRAY_SIZE(master_volume_table) - 1;
+		left_vol = master_volume_table[left_vol];
+	}
+	if (! mix->master_switch[1])
+		right_vol = 0;
+	else {
+		right_vol = mix->master_vol[1];
+		if (right_vol >= ARRAY_SIZE(master_volume_table))
+			right_vol = ARRAY_SIZE(master_volume_table) - 1;
+		right_vol = master_volume_table[right_vol];
+	}
+
+	block[0] = (left_vol >> 16) & 0xff;
+	block[1] = (left_vol >> 8)  & 0xff;
+	block[2] = (left_vol >> 0)  & 0xff;
+
+	block[3] = (right_vol >> 16) & 0xff;
+	block[4] = (right_vol >> 8)  & 0xff;
+	block[5] = (right_vol >> 0)  & 0xff;
+  
+	if (i2c_smbus_write_i2c_block_data(mix->i2c.client, TAS_REG_VOL, 6,
+					   block) < 0) {
+		snd_printk(KERN_ERR "failed to set volume \n");
+		return -EINVAL;
+	}
+	DBG("(I) succeeded to set volume (%u, %u)\n", left_vol, right_vol);
+	return 0;
+}
+
+
+/* output volume */
+static int tumbler_info_master_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 = ARRAY_SIZE(master_volume_table) - 1;
+	return 0;
+}
+
+static int tumbler_get_master_volume(struct snd_kcontrol *kcontrol,
+				     struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
+	struct pmac_tumbler *mix = chip->mixer_data;
+
+	ucontrol->value.integer.value[0] = mix->master_vol[0];
+	ucontrol->value.integer.value[1] = mix->master_vol[1];
+	return 0;
+}
+
+static int tumbler_put_master_volume(struct snd_kcontrol *kcontrol,
+				     struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
+	struct pmac_tumbler *mix = chip->mixer_data;
+	unsigned int vol[2];
+	int change;
+
+	vol[0] = ucontrol->value.integer.value[0];
+	vol[1] = ucontrol->value.integer.value[1];
+	if (vol[0] >= ARRAY_SIZE(master_volume_table) ||
+	    vol[1] >= ARRAY_SIZE(master_volume_table))
+		return -EINVAL;
+	change = mix->master_vol[0] != vol[0] ||
+		mix->master_vol[1] != vol[1];
+	if (change) {
+		mix->master_vol[0] = vol[0];
+		mix->master_vol[1] = vol[1];
+		tumbler_set_master_volume(mix);
+	}
+	return change;
+}
+
+/* output switch */
+static int tumbler_get_master_switch(struct snd_kcontrol *kcontrol,
+				     struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
+	struct pmac_tumbler *mix = chip->mixer_data;
+
+	ucontrol->value.integer.value[0] = mix->master_switch[0];
+	ucontrol->value.integer.value[1] = mix->master_switch[1];
+	return 0;
+}
+
+static int tumbler_put_master_switch(struct snd_kcontrol *kcontrol,
+				     struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
+	struct pmac_tumbler *mix = chip->mixer_data;
+	int change;
+
+	change = mix->master_switch[0] != ucontrol->value.integer.value[0] ||
+		mix->master_switch[1] != ucontrol->value.integer.value[1];
+	if (change) {
+		mix->master_switch[0] = !!ucontrol->value.integer.value[0];
+		mix->master_switch[1] = !!ucontrol->value.integer.value[1];
+		tumbler_set_master_volume(mix);
+	}
+	return change;
+}
+
+
+/*
+ * TAS3001c dynamic range compression
+ */
+
+#define TAS3001_DRC_MAX		0x5f
+
+static int tumbler_set_drc(struct pmac_tumbler *mix)
+{
+	unsigned char val[2];
+
+	if (! mix->i2c.client)
+		return -ENODEV;
+  
+	if (mix->drc_enable) {
+		val[0] = 0xc1; /* enable, 3:1 compression */
+		if (mix->drc_range > TAS3001_DRC_MAX)
+			val[1] = 0xf0;
+		else if (mix->drc_range < 0)
+			val[1] = 0x91;
+		else
+			val[1] = mix->drc_range + 0x91;
+	} else {
+		val[0] = 0;
+		val[1] = 0;
+	}
+
+	if (i2c_smbus_write_i2c_block_data(mix->i2c.client, TAS_REG_DRC,
+					   2, val) < 0) {
+		snd_printk(KERN_ERR "failed to set DRC\n");
+		return -EINVAL;
+	}
+	DBG("(I) succeeded to set DRC (%u, %u)\n", val[0], val[1]);
+	return 0;
+}
+
+/*
+ * TAS3004
+ */
+
+#define TAS3004_DRC_MAX		0xef
+
+static int snapper_set_drc(struct pmac_tumbler *mix)
+{
+	unsigned char val[6];
+
+	if (! mix->i2c.client)
+		return -ENODEV;
+  
+	if (mix->drc_enable)
+		val[0] = 0x50; /* 3:1 above threshold */
+	else
+		val[0] = 0x51; /* disabled */
+	val[1] = 0x02; /* 1:1 below threshold */
+	if (mix->drc_range > 0xef)
+		val[2] = 0xef;
+	else if (mix->drc_range < 0)
+		val[2] = 0x00;
+	else
+		val[2] = mix->drc_range;
+	val[3] = 0xb0;
+	val[4] = 0x60;
+	val[5] = 0xa0;
+
+	if (i2c_smbus_write_i2c_block_data(mix->i2c.client, TAS_REG_DRC,
+					   6, val) < 0) {
+		snd_printk(KERN_ERR "failed to set DRC\n");
+		return -EINVAL;
+	}
+	DBG("(I) succeeded to set DRC (%u, %u)\n", val[0], val[1]);
+	return 0;
+}
+
+static int tumbler_info_drc_value(struct snd_kcontrol *kcontrol,
+				  struct snd_ctl_elem_info *uinfo)
+{
+	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->count = 1;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max =
+		chip->model == PMAC_TUMBLER ? TAS3001_DRC_MAX : TAS3004_DRC_MAX;
+	return 0;
+}
+
+static int tumbler_get_drc_value(struct snd_kcontrol *kcontrol,
+				 struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
+	struct pmac_tumbler *mix;
+	if (! (mix = chip->mixer_data))
+		return -ENODEV;
+	ucontrol->value.integer.value[0] = mix->drc_range;
+	return 0;
+}
+
+static int tumbler_put_drc_value(struct snd_kcontrol *kcontrol,
+				 struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
+	struct pmac_tumbler *mix;
+	unsigned int val;
+	int change;
+
+	if (! (mix = chip->mixer_data))
+		return -ENODEV;
+	val = ucontrol->value.integer.value[0];
+	if (chip->model == PMAC_TUMBLER) {
+		if (val > TAS3001_DRC_MAX)
+			return -EINVAL;
+	} else {
+		if (val > TAS3004_DRC_MAX)
+			return -EINVAL;
+	}
+	change = mix->drc_range != val;
+	if (change) {
+		mix->drc_range = val;
+		if (chip->model == PMAC_TUMBLER)
+			tumbler_set_drc(mix);
+		else
+			snapper_set_drc(mix);
+	}
+	return change;
+}
+
+static int tumbler_get_drc_switch(struct snd_kcontrol *kcontrol,
+				  struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
+	struct pmac_tumbler *mix;
+	if (! (mix = chip->mixer_data))
+		return -ENODEV;
+	ucontrol->value.integer.value[0] = mix->drc_enable;
+	return 0;
+}
+
+static int tumbler_put_drc_switch(struct snd_kcontrol *kcontrol,
+				  struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
+	struct pmac_tumbler *mix;
+	int change;
+
+	if (! (mix = chip->mixer_data))
+		return -ENODEV;
+	change = mix->drc_enable != ucontrol->value.integer.value[0];
+	if (change) {
+		mix->drc_enable = !!ucontrol->value.integer.value[0];
+		if (chip->model == PMAC_TUMBLER)
+			tumbler_set_drc(mix);
+		else
+			snapper_set_drc(mix);
+	}
+	return change;
+}
+
+
+/*
+ * mono volumes
+ */
+
+struct tumbler_mono_vol {
+	int index;
+	int reg;
+	int bytes;
+	unsigned int max;
+	unsigned int *table;
+};
+
+static int tumbler_set_mono_volume(struct pmac_tumbler *mix,
+				   struct tumbler_mono_vol *info)
+{
+	unsigned char block[4];
+	unsigned int vol;
+	int i;
+  
+	if (! mix->i2c.client)
+		return -ENODEV;
+  
+	vol = mix->mono_vol[info->index];
+	if (vol >= info->max)
+		vol = info->max - 1;
+	vol = info->table[vol];
+	for (i = 0; i < info->bytes; i++)
+		block[i] = (vol >> ((info->bytes - i - 1) * 8)) & 0xff;
+	if (i2c_smbus_write_i2c_block_data(mix->i2c.client, info->reg,
+					   info->bytes, block) < 0) {
+		snd_printk(KERN_ERR "failed to set mono volume %d\n",
+			   info->index);
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static int tumbler_info_mono(struct snd_kcontrol *kcontrol,
+			     struct snd_ctl_elem_info *uinfo)
+{
+	struct tumbler_mono_vol *info = (struct tumbler_mono_vol *)kcontrol->private_value;
+
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->count = 1;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = info->max - 1;
+	return 0;
+}
+
+static int tumbler_get_mono(struct snd_kcontrol *kcontrol,
+			    struct snd_ctl_elem_value *ucontrol)
+{
+	struct tumbler_mono_vol *info = (struct tumbler_mono_vol *)kcontrol->private_value;
+	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
+	struct pmac_tumbler *mix;
+	if (! (mix = chip->mixer_data))
+		return -ENODEV;
+	ucontrol->value.integer.value[0] = mix->mono_vol[info->index];
+	return 0;
+}
+
+static int tumbler_put_mono(struct snd_kcontrol *kcontrol,
+			    struct snd_ctl_elem_value *ucontrol)
+{
+	struct tumbler_mono_vol *info = (struct tumbler_mono_vol *)kcontrol->private_value;
+	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
+	struct pmac_tumbler *mix;
+	unsigned int vol;
+	int change;
+
+	if (! (mix = chip->mixer_data))
+		return -ENODEV;
+	vol = ucontrol->value.integer.value[0];
+	if (vol >= info->max)
+		return -EINVAL;
+	change = mix->mono_vol[info->index] != vol;
+	if (change) {
+		mix->mono_vol[info->index] = vol;
+		tumbler_set_mono_volume(mix, info);
+	}
+	return change;
+}
+
+/* TAS3001c mono volumes */
+static struct tumbler_mono_vol tumbler_pcm_vol_info = {
+	.index = VOL_IDX_PCM_MONO,
+	.reg = TAS_REG_PCM,
+	.bytes = 3,
+	.max = ARRAY_SIZE(mixer_volume_table),
+	.table = mixer_volume_table,
+};
+
+static struct tumbler_mono_vol tumbler_bass_vol_info = {
+	.index = VOL_IDX_BASS,
+	.reg = TAS_REG_BASS,
+	.bytes = 1,
+	.max = ARRAY_SIZE(bass_volume_table),
+	.table = bass_volume_table,
+};
+
+static struct tumbler_mono_vol tumbler_treble_vol_info = {
+	.index = VOL_IDX_TREBLE,
+	.reg = TAS_REG_TREBLE,
+	.bytes = 1,
+	.max = ARRAY_SIZE(treble_volume_table),
+	.table = treble_volume_table,
+};
+
+/* TAS3004 mono volumes */
+static struct tumbler_mono_vol snapper_bass_vol_info = {
+	.index = VOL_IDX_BASS,
+	.reg = TAS_REG_BASS,
+	.bytes = 1,
+	.max = ARRAY_SIZE(snapper_bass_volume_table),
+	.table = snapper_bass_volume_table,
+};
+
+static struct tumbler_mono_vol snapper_treble_vol_info = {
+	.index = VOL_IDX_TREBLE,
+	.reg = TAS_REG_TREBLE,
+	.bytes = 1,
+	.max = ARRAY_SIZE(snapper_treble_volume_table),
+	.table = snapper_treble_volume_table,
+};
+
+
+#define DEFINE_MONO(xname,type) { \
+	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
+	.name = xname, \
+	.info = tumbler_info_mono, \
+	.get = tumbler_get_mono, \
+	.put = tumbler_put_mono, \
+	.private_value = (unsigned long)(&tumbler_##type##_vol_info), \
+}
+
+#define DEFINE_SNAPPER_MONO(xname,type) { \
+	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
+	.name = xname, \
+	.info = tumbler_info_mono, \
+	.get = tumbler_get_mono, \
+	.put = tumbler_put_mono, \
+	.private_value = (unsigned long)(&snapper_##type##_vol_info), \
+}
+
+
+/*
+ * snapper mixer volumes
+ */
+
+static int snapper_set_mix_vol1(struct pmac_tumbler *mix, int idx, int ch, int reg)
+{
+	int i, j, vol;
+	unsigned char block[9];
+
+	vol = mix->mix_vol[idx][ch];
+	if (vol >= ARRAY_SIZE(mixer_volume_table)) {
+		vol = ARRAY_SIZE(mixer_volume_table) - 1;
+		mix->mix_vol[idx][ch] = vol;
+	}
+
+	for (i = 0; i < 3; i++) {
+		vol = mix->mix_vol[i][ch];
+		vol = mixer_volume_table[vol];
+		for (j = 0; j < 3; j++)
+			block[i * 3 + j] = (vol >> ((2 - j) * 8)) & 0xff;
+	}
+	if (i2c_smbus_write_i2c_block_data(mix->i2c.client, reg,
+					   9, block) < 0) {
+		snd_printk(KERN_ERR "failed to set mono volume %d\n", reg);
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static int snapper_set_mix_vol(struct pmac_tumbler *mix, int idx)
+{
+	if (! mix->i2c.client)
+		return -ENODEV;
+	if (snapper_set_mix_vol1(mix, idx, 0, TAS_REG_LMIX) < 0 ||
+	    snapper_set_mix_vol1(mix, idx, 1, TAS_REG_RMIX) < 0)
+		return -EINVAL;
+	return 0;
+}
+
+static int snapper_info_mix(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 = ARRAY_SIZE(mixer_volume_table) - 1;
+	return 0;
+}
+
+static int snapper_get_mix(struct snd_kcontrol *kcontrol,
+			   struct snd_ctl_elem_value *ucontrol)
+{
+	int idx = (int)kcontrol->private_value;
+	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
+	struct pmac_tumbler *mix;
+	if (! (mix = chip->mixer_data))
+		return -ENODEV;
+	ucontrol->value.integer.value[0] = mix->mix_vol[idx][0];
+	ucontrol->value.integer.value[1] = mix->mix_vol[idx][1];
+	return 0;
+}
+
+static int snapper_put_mix(struct snd_kcontrol *kcontrol,
+			   struct snd_ctl_elem_value *ucontrol)
+{
+	int idx = (int)kcontrol->private_value;
+	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
+	struct pmac_tumbler *mix;
+	unsigned int vol[2];
+	int change;
+
+	if (! (mix = chip->mixer_data))
+		return -ENODEV;
+	vol[0] = ucontrol->value.integer.value[0];
+	vol[1] = ucontrol->value.integer.value[1];
+	if (vol[0] >= ARRAY_SIZE(mixer_volume_table) ||
+	    vol[1] >= ARRAY_SIZE(mixer_volume_table))
+		return -EINVAL;
+	change = mix->mix_vol[idx][0] != vol[0] ||
+		mix->mix_vol[idx][1] != vol[1];
+	if (change) {
+		mix->mix_vol[idx][0] = vol[0];
+		mix->mix_vol[idx][1] = vol[1];
+		snapper_set_mix_vol(mix, idx);
+	}
+	return change;
+}
+
+
+/*
+ * mute switches. FIXME: Turn that into software mute when both outputs are muted
+ * to avoid codec reset on ibook M7
+ */
+
+enum { TUMBLER_MUTE_HP, TUMBLER_MUTE_AMP, TUMBLER_MUTE_LINE };
+
+static int tumbler_get_mute_switch(struct snd_kcontrol *kcontrol,
+				   struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
+	struct pmac_tumbler *mix;
+	struct pmac_gpio *gp;
+	if (! (mix = chip->mixer_data))
+		return -ENODEV;
+	switch(kcontrol->private_value) {
+	case TUMBLER_MUTE_HP:
+		gp = &mix->hp_mute;	break;
+	case TUMBLER_MUTE_AMP:
+		gp = &mix->amp_mute;	break;
+	case TUMBLER_MUTE_LINE:
+		gp = &mix->line_mute;	break;
+	default:
+		gp = NULL;
+	}
+	if (gp == NULL)
+		return -EINVAL;
+	ucontrol->value.integer.value[0] = !check_audio_gpio(gp);
+	return 0;
+}
+
+static int tumbler_put_mute_switch(struct snd_kcontrol *kcontrol,
+				   struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
+	struct pmac_tumbler *mix;
+	struct pmac_gpio *gp;
+	int val;
+#ifdef PMAC_SUPPORT_AUTOMUTE
+	if (chip->update_automute && chip->auto_mute)
+		return 0; /* don't touch in the auto-mute mode */
+#endif	
+	if (! (mix = chip->mixer_data))
+		return -ENODEV;
+	switch(kcontrol->private_value) {
+	case TUMBLER_MUTE_HP:
+		gp = &mix->hp_mute;	break;
+	case TUMBLER_MUTE_AMP:
+		gp = &mix->amp_mute;	break;
+	case TUMBLER_MUTE_LINE:
+		gp = &mix->line_mute;	break;
+	default:
+		gp = NULL;
+	}
+	if (gp == NULL)
+		return -EINVAL;
+	val = ! check_audio_gpio(gp);
+	if (val != ucontrol->value.integer.value[0]) {
+		write_audio_gpio(gp, ! ucontrol->value.integer.value[0]);
+		return 1;
+	}
+	return 0;
+}
+
+static int snapper_set_capture_source(struct pmac_tumbler *mix)
+{
+	if (! mix->i2c.client)
+		return -ENODEV;
+	if (mix->capture_source)
+		mix->acs |= 2;
+	else
+		mix->acs &= ~2;
+	return i2c_smbus_write_byte_data(mix->i2c.client, TAS_REG_ACS, mix->acs);
+}
+
+static int snapper_info_capture_source(struct snd_kcontrol *kcontrol,
+				       struct snd_ctl_elem_info *uinfo)
+{
+	static const char * const texts[2] = {
+		"Line", "Mic"
+	};
+
+	return snd_ctl_enum_info(uinfo, 1, 2, texts);
+}
+
+static int snapper_get_capture_source(struct snd_kcontrol *kcontrol,
+				      struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
+	struct pmac_tumbler *mix = chip->mixer_data;
+
+	ucontrol->value.enumerated.item[0] = mix->capture_source;
+	return 0;
+}
+
+static int snapper_put_capture_source(struct snd_kcontrol *kcontrol,
+				      struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
+	struct pmac_tumbler *mix = chip->mixer_data;
+	int change;
+
+	change = ucontrol->value.enumerated.item[0] != mix->capture_source;
+	if (change) {
+		mix->capture_source = !!ucontrol->value.enumerated.item[0];
+		snapper_set_capture_source(mix);
+	}
+	return change;
+}
+
+#define DEFINE_SNAPPER_MIX(xname,idx,ofs) { \
+	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
+	.name = xname, \
+	.info = snapper_info_mix, \
+	.get = snapper_get_mix, \
+	.put = snapper_put_mix, \
+	.index = idx,\
+	.private_value = ofs, \
+}
+
+
+/*
+ */
+static struct snd_kcontrol_new tumbler_mixers[] = {
+	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+	  .name = "Master Playback Volume",
+	  .info = tumbler_info_master_volume,
+	  .get = tumbler_get_master_volume,
+	  .put = tumbler_put_master_volume
+	},
+	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+	  .name = "Master Playback Switch",
+	  .info = snd_pmac_boolean_stereo_info,
+	  .get = tumbler_get_master_switch,
+	  .put = tumbler_put_master_switch
+	},
+	DEFINE_MONO("Tone Control - Bass", bass),
+	DEFINE_MONO("Tone Control - Treble", treble),
+	DEFINE_MONO("PCM Playback Volume", pcm),
+	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+	  .name = "DRC Range",
+	  .info = tumbler_info_drc_value,
+	  .get = tumbler_get_drc_value,
+	  .put = tumbler_put_drc_value
+	},
+};
+
+static struct snd_kcontrol_new snapper_mixers[] = {
+	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+	  .name = "Master Playback Volume",
+	  .info = tumbler_info_master_volume,
+	  .get = tumbler_get_master_volume,
+	  .put = tumbler_put_master_volume
+	},
+	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+	  .name = "Master Playback Switch",
+	  .info = snd_pmac_boolean_stereo_info,
+	  .get = tumbler_get_master_switch,
+	  .put = tumbler_put_master_switch
+	},
+	DEFINE_SNAPPER_MIX("PCM Playback Volume", 0, VOL_IDX_PCM),
+	/* Alternative PCM is assigned to Mic analog loopback on iBook G4 */
+	DEFINE_SNAPPER_MIX("Mic Playback Volume", 0, VOL_IDX_PCM2),
+	DEFINE_SNAPPER_MIX("Monitor Mix Volume", 0, VOL_IDX_ADC),
+	DEFINE_SNAPPER_MONO("Tone Control - Bass", bass),
+	DEFINE_SNAPPER_MONO("Tone Control - Treble", treble),
+	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+	  .name = "DRC Range",
+	  .info = tumbler_info_drc_value,
+	  .get = tumbler_get_drc_value,
+	  .put = tumbler_put_drc_value
+	},
+	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+	  .name = "Input Source", /* FIXME: "Capture Source" doesn't work properly */
+	  .info = snapper_info_capture_source,
+	  .get = snapper_get_capture_source,
+	  .put = snapper_put_capture_source
+	},
+};
+
+static const struct snd_kcontrol_new tumbler_hp_sw = {
+	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+	.name = "Headphone Playback Switch",
+	.info = snd_pmac_boolean_mono_info,
+	.get = tumbler_get_mute_switch,
+	.put = tumbler_put_mute_switch,
+	.private_value = TUMBLER_MUTE_HP,
+};
+static const struct snd_kcontrol_new tumbler_speaker_sw = {
+	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+	.name = "Speaker Playback Switch",
+	.info = snd_pmac_boolean_mono_info,
+	.get = tumbler_get_mute_switch,
+	.put = tumbler_put_mute_switch,
+	.private_value = TUMBLER_MUTE_AMP,
+};
+static const struct snd_kcontrol_new tumbler_lineout_sw = {
+	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+	.name = "Line Out Playback Switch",
+	.info = snd_pmac_boolean_mono_info,
+	.get = tumbler_get_mute_switch,
+	.put = tumbler_put_mute_switch,
+	.private_value = TUMBLER_MUTE_LINE,
+};
+static const struct snd_kcontrol_new tumbler_drc_sw = {
+	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+	.name = "DRC Switch",
+	.info = snd_pmac_boolean_mono_info,
+	.get = tumbler_get_drc_switch,
+	.put = tumbler_put_drc_switch
+};
+
+
+#ifdef PMAC_SUPPORT_AUTOMUTE
+/*
+ * auto-mute stuffs
+ */
+static int tumbler_detect_headphone(struct snd_pmac *chip)
+{
+	struct pmac_tumbler *mix = chip->mixer_data;
+	int detect = 0;
+
+	if (mix->hp_detect.addr)
+		detect |= read_audio_gpio(&mix->hp_detect);
+	return detect;
+}
+
+static int tumbler_detect_lineout(struct snd_pmac *chip)
+{
+	struct pmac_tumbler *mix = chip->mixer_data;
+	int detect = 0;
+
+	if (mix->line_detect.addr)
+		detect |= read_audio_gpio(&mix->line_detect);
+	return detect;
+}
+
+static void check_mute(struct snd_pmac *chip, struct pmac_gpio *gp, int val, int do_notify,
+		       struct snd_kcontrol *sw)
+{
+	if (check_audio_gpio(gp) != val) {
+		write_audio_gpio(gp, val);
+		if (do_notify)
+			snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
+				       &sw->id);
+	}
+}
+
+static struct work_struct device_change;
+static struct snd_pmac *device_change_chip;
+
+static void device_change_handler(struct work_struct *work)
+{
+	struct snd_pmac *chip = device_change_chip;
+	struct pmac_tumbler *mix;
+	int headphone, lineout;
+
+	if (!chip)
+		return;
+
+	mix = chip->mixer_data;
+	if (snd_BUG_ON(!mix))
+		return;
+
+	headphone = tumbler_detect_headphone(chip);
+	lineout = tumbler_detect_lineout(chip);
+
+	DBG("headphone: %d, lineout: %d\n", headphone, lineout);
+
+	if (headphone || lineout) {
+		/* unmute headphone/lineout & mute speaker */
+		if (headphone)
+			check_mute(chip, &mix->hp_mute, 0, mix->auto_mute_notify,
+				   chip->master_sw_ctl);
+		if (lineout && mix->line_mute.addr != 0)
+			check_mute(chip, &mix->line_mute, 0, mix->auto_mute_notify,
+				   chip->lineout_sw_ctl);
+		if (mix->anded_reset)
+			msleep(10);
+		check_mute(chip, &mix->amp_mute, !IS_G4DA, mix->auto_mute_notify,
+			   chip->speaker_sw_ctl);
+	} else {
+		/* unmute speaker, mute others */
+		check_mute(chip, &mix->amp_mute, 0, mix->auto_mute_notify,
+			   chip->speaker_sw_ctl);
+		if (mix->anded_reset)
+			msleep(10);
+		check_mute(chip, &mix->hp_mute, 1, mix->auto_mute_notify,
+			   chip->master_sw_ctl);
+		if (mix->line_mute.addr != 0)
+			check_mute(chip, &mix->line_mute, 1, mix->auto_mute_notify,
+				   chip->lineout_sw_ctl);
+	}
+	if (mix->auto_mute_notify)
+		snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
+				       &chip->hp_detect_ctl->id);
+
+#ifdef CONFIG_SND_POWERMAC_AUTO_DRC
+	mix->drc_enable = ! (headphone || lineout);
+	if (mix->auto_mute_notify)
+		snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
+			       &chip->drc_sw_ctl->id);
+	if (chip->model == PMAC_TUMBLER)
+		tumbler_set_drc(mix);
+	else
+		snapper_set_drc(mix);
+#endif
+
+	/* reset the master volume so the correct amplification is applied */
+	tumbler_set_master_volume(mix);
+}
+
+static void tumbler_update_automute(struct snd_pmac *chip, int do_notify)
+{
+	if (chip->auto_mute) {
+		struct pmac_tumbler *mix;
+		mix = chip->mixer_data;
+		if (snd_BUG_ON(!mix))
+			return;
+		mix->auto_mute_notify = do_notify;
+		schedule_work(&device_change);
+	}
+}
+#endif /* PMAC_SUPPORT_AUTOMUTE */
+
+
+/* interrupt - headphone plug changed */
+static irqreturn_t headphone_intr(int irq, void *devid)
+{
+	struct snd_pmac *chip = devid;
+	if (chip->update_automute && chip->initialized) {
+		chip->update_automute(chip, 1);
+		return IRQ_HANDLED;
+	}
+	return IRQ_NONE;
+}
+
+/* look for audio-gpio device */
+static struct device_node *find_audio_device(const char *name)
+{
+	struct device_node *gpiop;
+	struct device_node *np;
+  
+	gpiop = of_find_node_by_name(NULL, "gpio");
+	if (! gpiop)
+		return NULL;
+  
+	for (np = of_get_next_child(gpiop, NULL); np;
+			np = of_get_next_child(gpiop, np)) {
+		const char *property = of_get_property(np, "audio-gpio", NULL);
+		if (property && strcmp(property, name) == 0)
+			break;
+	}  
+	of_node_put(gpiop);
+	return np;
+}
+
+/* look for audio-gpio device */
+static struct device_node *find_compatible_audio_device(const char *name)
+{
+	struct device_node *gpiop;
+	struct device_node *np;
+  
+	gpiop = of_find_node_by_name(NULL, "gpio");
+	if (!gpiop)
+		return NULL;
+  
+	for (np = of_get_next_child(gpiop, NULL); np;
+			np = of_get_next_child(gpiop, np)) {
+		if (of_device_is_compatible(np, name))
+			break;
+	}  
+	of_node_put(gpiop);
+	return np;
+}
+
+/* find an audio device and get its address */
+static long tumbler_find_device(const char *device, const char *platform,
+				struct pmac_gpio *gp, int is_compatible)
+{
+	struct device_node *node;
+	const u32 *base;
+	u32 addr;
+	long ret;
+
+	if (is_compatible)
+		node = find_compatible_audio_device(device);
+	else
+		node = find_audio_device(device);
+	if (! node) {
+		DBG("(W) cannot find audio device %s !\n", device);
+		snd_printdd("cannot find device %s\n", device);
+		return -ENODEV;
+	}
+
+	base = of_get_property(node, "AAPL,address", NULL);
+	if (! base) {
+		base = of_get_property(node, "reg", NULL);
+		if (!base) {
+			DBG("(E) cannot find address for device %s !\n", device);
+			snd_printd("cannot find address for device %s\n", device);
+			of_node_put(node);
+			return -ENODEV;
+		}
+		addr = *base;
+		if (addr < 0x50)
+			addr += 0x50;
+	} else
+		addr = *base;
+
+	gp->addr = addr & 0x0000ffff;
+	/* Try to find the active state, default to 0 ! */
+	base = of_get_property(node, "audio-gpio-active-state", NULL);
+	if (base) {
+		gp->active_state = *base;
+		gp->active_val = (*base) ? 0x5 : 0x4;
+		gp->inactive_val = (*base) ? 0x4 : 0x5;
+	} else {
+		const u32 *prop = NULL;
+		gp->active_state = IS_G4DA
+				&& !strncmp(device, "keywest-gpio1", 13);
+		gp->active_val = 0x4;
+		gp->inactive_val = 0x5;
+		/* Here are some crude hacks to extract the GPIO polarity and
+		 * open collector informations out of the do-platform script
+		 * as we don't yet have an interpreter for these things
+		 */
+		if (platform)
+			prop = of_get_property(node, platform, NULL);
+		if (prop) {
+			if (prop[3] == 0x9 && prop[4] == 0x9) {
+				gp->active_val = 0xd;
+				gp->inactive_val = 0xc;
+			}
+			if (prop[3] == 0x1 && prop[4] == 0x1) {
+				gp->active_val = 0x5;
+				gp->inactive_val = 0x4;
+			}
+		}
+	}
+
+	DBG("(I) GPIO device %s found, offset: %x, active state: %d !\n",
+	    device, gp->addr, gp->active_state);
+
+	ret = irq_of_parse_and_map(node, 0);
+	of_node_put(node);
+	return ret;
+}
+
+/* reset audio */
+static void tumbler_reset_audio(struct snd_pmac *chip)
+{
+	struct pmac_tumbler *mix = chip->mixer_data;
+
+	if (mix->anded_reset) {
+		DBG("(I) codec anded reset !\n");
+		write_audio_gpio(&mix->hp_mute, 0);
+		write_audio_gpio(&mix->amp_mute, 0);
+		msleep(200);
+		write_audio_gpio(&mix->hp_mute, 1);
+		write_audio_gpio(&mix->amp_mute, 1);
+		msleep(100);
+		write_audio_gpio(&mix->hp_mute, 0);
+		write_audio_gpio(&mix->amp_mute, 0);
+		msleep(100);
+	} else {
+		DBG("(I) codec normal reset !\n");
+
+		write_audio_gpio(&mix->audio_reset, 0);
+		msleep(200);
+		write_audio_gpio(&mix->audio_reset, 1);
+		msleep(100);
+		write_audio_gpio(&mix->audio_reset, 0);
+		msleep(100);
+	}
+}
+
+#ifdef CONFIG_PM
+/* suspend mixer */
+static void tumbler_suspend(struct snd_pmac *chip)
+{
+	struct pmac_tumbler *mix = chip->mixer_data;
+
+	if (mix->headphone_irq >= 0)
+		disable_irq(mix->headphone_irq);
+	if (mix->lineout_irq >= 0)
+		disable_irq(mix->lineout_irq);
+	mix->save_master_switch[0] = mix->master_switch[0];
+	mix->save_master_switch[1] = mix->master_switch[1];
+	mix->save_master_vol[0] = mix->master_vol[0];
+	mix->save_master_vol[1] = mix->master_vol[1];
+	mix->master_switch[0] = mix->master_switch[1] = 0;
+	tumbler_set_master_volume(mix);
+	if (!mix->anded_reset) {
+		write_audio_gpio(&mix->amp_mute, 1);
+		write_audio_gpio(&mix->hp_mute, 1);
+	}
+	if (chip->model == PMAC_SNAPPER) {
+		mix->acs |= 1;
+		i2c_smbus_write_byte_data(mix->i2c.client, TAS_REG_ACS, mix->acs);
+	}
+	if (mix->anded_reset) {
+		write_audio_gpio(&mix->amp_mute, 1);
+		write_audio_gpio(&mix->hp_mute, 1);
+	} else
+		write_audio_gpio(&mix->audio_reset, 1);
+}
+
+/* resume mixer */
+static void tumbler_resume(struct snd_pmac *chip)
+{
+	struct pmac_tumbler *mix = chip->mixer_data;
+
+	mix->acs &= ~1;
+	mix->master_switch[0] = mix->save_master_switch[0];
+	mix->master_switch[1] = mix->save_master_switch[1];
+	mix->master_vol[0] = mix->save_master_vol[0];
+	mix->master_vol[1] = mix->save_master_vol[1];
+	tumbler_reset_audio(chip);
+	if (mix->i2c.client && mix->i2c.init_client) {
+		if (mix->i2c.init_client(&mix->i2c) < 0)
+			printk(KERN_ERR "tumbler_init_client error\n");
+	} else
+		printk(KERN_ERR "tumbler: i2c is not initialized\n");
+	if (chip->model == PMAC_TUMBLER) {
+		tumbler_set_mono_volume(mix, &tumbler_pcm_vol_info);
+		tumbler_set_mono_volume(mix, &tumbler_bass_vol_info);
+		tumbler_set_mono_volume(mix, &tumbler_treble_vol_info);
+		tumbler_set_drc(mix);
+	} else {
+		snapper_set_mix_vol(mix, VOL_IDX_PCM);
+		snapper_set_mix_vol(mix, VOL_IDX_PCM2);
+		snapper_set_mix_vol(mix, VOL_IDX_ADC);
+		tumbler_set_mono_volume(mix, &snapper_bass_vol_info);
+		tumbler_set_mono_volume(mix, &snapper_treble_vol_info);
+		snapper_set_drc(mix);
+		snapper_set_capture_source(mix);
+	}
+	tumbler_set_master_volume(mix);
+	if (chip->update_automute)
+		chip->update_automute(chip, 0);
+	if (mix->headphone_irq >= 0) {
+		unsigned char val;
+
+		enable_irq(mix->headphone_irq);
+		/* activate headphone status interrupts */
+		val = do_gpio_read(&mix->hp_detect);
+		do_gpio_write(&mix->hp_detect, val | 0x80);
+	}
+	if (mix->lineout_irq >= 0)
+		enable_irq(mix->lineout_irq);
+}
+#endif
+
+/* initialize tumbler */
+static int tumbler_init(struct snd_pmac *chip)
+{
+	int irq;
+	struct pmac_tumbler *mix = chip->mixer_data;
+
+	if (tumbler_find_device("audio-hw-reset",
+				"platform-do-hw-reset",
+				&mix->audio_reset, 0) < 0)
+		tumbler_find_device("hw-reset",
+				    "platform-do-hw-reset",
+				    &mix->audio_reset, 1);
+	if (tumbler_find_device("amp-mute",
+				"platform-do-amp-mute",
+				&mix->amp_mute, 0) < 0)
+		tumbler_find_device("amp-mute",
+				    "platform-do-amp-mute",
+				    &mix->amp_mute, 1);
+	if (tumbler_find_device("headphone-mute",
+				"platform-do-headphone-mute",
+				&mix->hp_mute, 0) < 0)
+		tumbler_find_device("headphone-mute",
+				    "platform-do-headphone-mute",
+				    &mix->hp_mute, 1);
+	if (tumbler_find_device("line-output-mute",
+				"platform-do-lineout-mute",
+				&mix->line_mute, 0) < 0)
+		tumbler_find_device("line-output-mute",
+				   "platform-do-lineout-mute",
+				    &mix->line_mute, 1);
+	irq = tumbler_find_device("headphone-detect",
+				  NULL, &mix->hp_detect, 0);
+	if (irq <= 0)
+		irq = tumbler_find_device("headphone-detect",
+					  NULL, &mix->hp_detect, 1);
+	if (irq <= 0)
+		irq = tumbler_find_device("keywest-gpio15",
+					  NULL, &mix->hp_detect, 1);
+	mix->headphone_irq = irq;
+ 	irq = tumbler_find_device("line-output-detect",
+				  NULL, &mix->line_detect, 0);
+	if (irq <= 0)
+		irq = tumbler_find_device("line-output-detect",
+					  NULL, &mix->line_detect, 1);
+	if (IS_G4DA && irq <= 0)
+		irq = tumbler_find_device("keywest-gpio16",
+					  NULL, &mix->line_detect, 1);
+	mix->lineout_irq = irq;
+
+	tumbler_reset_audio(chip);
+  
+	return 0;
+}
+
+static void tumbler_cleanup(struct snd_pmac *chip)
+{
+	struct pmac_tumbler *mix = chip->mixer_data;
+	if (! mix)
+		return;
+
+	if (mix->headphone_irq >= 0)
+		free_irq(mix->headphone_irq, chip);
+	if (mix->lineout_irq >= 0)
+		free_irq(mix->lineout_irq, chip);
+	tumbler_gpio_free(&mix->audio_reset);
+	tumbler_gpio_free(&mix->amp_mute);
+	tumbler_gpio_free(&mix->hp_mute);
+	tumbler_gpio_free(&mix->hp_detect);
+	snd_pmac_keywest_cleanup(&mix->i2c);
+	kfree(mix);
+	chip->mixer_data = NULL;
+}
+
+/* exported */
+int snd_pmac_tumbler_init(struct snd_pmac *chip)
+{
+	int i, err;
+	struct pmac_tumbler *mix;
+	const u32 *paddr;
+	struct device_node *tas_node, *np;
+	char *chipname;
+
+	request_module("i2c-powermac");
+
+	mix = kzalloc(sizeof(*mix), GFP_KERNEL);
+	if (! mix)
+		return -ENOMEM;
+	mix->headphone_irq = -1;
+
+	chip->mixer_data = mix;
+	chip->mixer_free = tumbler_cleanup;
+	mix->anded_reset = 0;
+	mix->reset_on_sleep = 1;
+
+	for (np = chip->node->child; np; np = np->sibling) {
+		if (!strcmp(np->name, "sound")) {
+			if (of_get_property(np, "has-anded-reset", NULL))
+				mix->anded_reset = 1;
+			if (of_get_property(np, "layout-id", NULL))
+				mix->reset_on_sleep = 0;
+			break;
+		}
+	}
+	if ((err = tumbler_init(chip)) < 0)
+		return err;
+
+	/* set up TAS */
+	tas_node = of_find_node_by_name(NULL, "deq");
+	if (tas_node == NULL)
+		tas_node = of_find_node_by_name(NULL, "codec");
+	if (tas_node == NULL)
+		return -ENODEV;
+
+	paddr = of_get_property(tas_node, "i2c-address", NULL);
+	if (paddr == NULL)
+		paddr = of_get_property(tas_node, "reg", NULL);
+	if (paddr)
+		mix->i2c.addr = (*paddr) >> 1;
+	else
+		mix->i2c.addr = TAS_I2C_ADDR;
+	of_node_put(tas_node);
+
+	DBG("(I) TAS i2c address is: %x\n", mix->i2c.addr);
+
+	if (chip->model == PMAC_TUMBLER) {
+		mix->i2c.init_client = tumbler_init_client;
+		mix->i2c.name = "TAS3001c";
+		chipname = "Tumbler";
+	} else {
+		mix->i2c.init_client = snapper_init_client;
+		mix->i2c.name = "TAS3004";
+		chipname = "Snapper";
+	}
+
+	if ((err = snd_pmac_keywest_init(&mix->i2c)) < 0)
+		return err;
+
+	/*
+	 * build mixers
+	 */
+	sprintf(chip->card->mixername, "PowerMac %s", chipname);
+
+	if (chip->model == PMAC_TUMBLER) {
+		for (i = 0; i < ARRAY_SIZE(tumbler_mixers); i++) {
+			if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&tumbler_mixers[i], chip))) < 0)
+				return err;
+		}
+	} else {
+		for (i = 0; i < ARRAY_SIZE(snapper_mixers); i++) {
+			if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&snapper_mixers[i], chip))) < 0)
+				return err;
+		}
+	}
+	chip->master_sw_ctl = snd_ctl_new1(&tumbler_hp_sw, chip);
+	if ((err = snd_ctl_add(chip->card, chip->master_sw_ctl)) < 0)
+		return err;
+	chip->speaker_sw_ctl = snd_ctl_new1(&tumbler_speaker_sw, chip);
+	if ((err = snd_ctl_add(chip->card, chip->speaker_sw_ctl)) < 0)
+		return err;
+	if (mix->line_mute.addr != 0) {
+		chip->lineout_sw_ctl = snd_ctl_new1(&tumbler_lineout_sw, chip);
+		if ((err = snd_ctl_add(chip->card, chip->lineout_sw_ctl)) < 0)
+			return err;
+	}
+	chip->drc_sw_ctl = snd_ctl_new1(&tumbler_drc_sw, chip);
+	if ((err = snd_ctl_add(chip->card, chip->drc_sw_ctl)) < 0)
+		return err;
+
+	/* set initial DRC range to 60% */
+	if (chip->model == PMAC_TUMBLER)
+		mix->drc_range = (TAS3001_DRC_MAX * 6) / 10;
+	else
+		mix->drc_range = (TAS3004_DRC_MAX * 6) / 10;
+	mix->drc_enable = 1; /* will be changed later if AUTO_DRC is set */
+	if (chip->model == PMAC_TUMBLER)
+		tumbler_set_drc(mix);
+	else
+		snapper_set_drc(mix);
+
+#ifdef CONFIG_PM
+	chip->suspend = tumbler_suspend;
+	chip->resume = tumbler_resume;
+#endif
+
+	INIT_WORK(&device_change, device_change_handler);
+	device_change_chip = chip;
+
+#ifdef PMAC_SUPPORT_AUTOMUTE
+	if ((mix->headphone_irq >=0 || mix->lineout_irq >= 0)
+	    && (err = snd_pmac_add_automute(chip)) < 0)
+		return err;
+	chip->detect_headphone = tumbler_detect_headphone;
+	chip->update_automute = tumbler_update_automute;
+	tumbler_update_automute(chip, 0); /* update the status only */
+
+	/* activate headphone status interrupts */
+  	if (mix->headphone_irq >= 0) {
+		unsigned char val;
+		if ((err = request_irq(mix->headphone_irq, headphone_intr, 0,
+				       "Sound Headphone Detection", chip)) < 0)
+			return 0;
+		/* activate headphone status interrupts */
+		val = do_gpio_read(&mix->hp_detect);
+		do_gpio_write(&mix->hp_detect, val | 0x80);
+	}
+  	if (mix->lineout_irq >= 0) {
+		unsigned char val;
+		if ((err = request_irq(mix->lineout_irq, headphone_intr, 0,
+				       "Sound Lineout Detection", chip)) < 0)
+			return 0;
+		/* activate headphone status interrupts */
+		val = do_gpio_read(&mix->line_detect);
+		do_gpio_write(&mix->line_detect, val | 0x80);
+	}
+#endif
+
+	return 0;
+}
diff --git a/src/kernel/linux/v4.14/sound/ppc/tumbler_volume.h b/src/kernel/linux/v4.14/sound/ppc/tumbler_volume.h
new file mode 100644
index 0000000..549ec6a
--- /dev/null
+++ b/src/kernel/linux/v4.14/sound/ppc/tumbler_volume.h
@@ -0,0 +1,251 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* volume tables, taken from TAS3001c data manual */
+/* volume gain values */
+/* 0 = -70 dB, 175 = 18.0 dB in 0.5 dB step */
+static unsigned int master_volume_table[] = {
+	0x00000015, 0x00000016,	0x00000017,
+	0x00000019, 0x0000001a,	0x0000001c,
+	0x0000001d, 0x0000001f,	0x00000021,
+	0x00000023, 0x00000025,	0x00000027,
+	0x00000029, 0x0000002c,	0x0000002e,
+	0x00000031, 0x00000034,	0x00000037,
+	0x0000003a, 0x0000003e,	0x00000042,
+	0x00000045, 0x0000004a,	0x0000004e,
+	0x00000053, 0x00000057,	0x0000005d,
+	0x00000062, 0x00000068,	0x0000006e,
+	0x00000075, 0x0000007b,	0x00000083,
+	0x0000008b, 0x00000093,	0x0000009b,
+	0x000000a5, 0x000000ae,	0x000000b9,
+	0x000000c4, 0x000000cf,	0x000000dc,
+	0x000000e9, 0x000000f6,	0x00000105,
+	0x00000114, 0x00000125,	0x00000136,
+	0x00000148, 0x0000015c,	0x00000171,
+	0x00000186, 0x0000019e,	0x000001b6,
+	0x000001d0, 0x000001eb,	0x00000209,
+	0x00000227, 0x00000248,	0x0000026b,
+	0x0000028f, 0x000002b6,	0x000002df,
+	0x0000030b, 0x00000339,	0x0000036a,
+	0x0000039e, 0x000003d5,	0x0000040f,
+	0x0000044c, 0x0000048d,	0x000004d2,
+	0x0000051c, 0x00000569,	0x000005bb,
+	0x00000612, 0x0000066e,	0x000006d0,
+	0x00000737, 0x000007a5,	0x00000818,
+	0x00000893, 0x00000915,	0x0000099f,
+	0x00000a31, 0x00000acc,	0x00000b6f,
+	0x00000c1d, 0x00000cd5,	0x00000d97,
+	0x00000e65, 0x00000f40,	0x00001027,
+	0x0000111c, 0x00001220,	0x00001333,
+	0x00001456, 0x0000158a,	0x000016d1,
+	0x0000182b, 0x0000199a,	0x00001b1e,
+	0x00001cb9, 0x00001e6d,	0x0000203a,
+	0x00002223, 0x00002429,	0x0000264e,
+	0x00002893, 0x00002afa,	0x00002d86,
+	0x00003039, 0x00003314,	0x0000361b,
+	0x00003950, 0x00003cb5,	0x0000404e,
+	0x0000441d, 0x00004827,	0x00004c6d,
+	0x000050f4, 0x000055c0,	0x00005ad5,
+	0x00006037, 0x000065ea,	0x00006bf4,
+	0x0000725a, 0x00007920,	0x0000804e,
+	0x000087e8, 0x00008ff6,	0x0000987d,
+	0x0000a186, 0x0000ab19,	0x0000b53c,
+	0x0000bff9, 0x0000cb59,	0x0000d766,
+	0x0000e429, 0x0000f1ae,	0x00010000,
+	0x00010f2b, 0x00011f3d,	0x00013042,
+	0x00014249, 0x00015562,	0x0001699c,
+	0x00017f09, 0x000195bc,	0x0001adc6,
+	0x0001c73d, 0x0001e237,	0x0001feca,
+	0x00021d0e, 0x00023d1d,	0x00025f12,
+	0x0002830b, 0x0002a925,	0x0002d182,
+	0x0002fc42, 0x0003298b,	0x00035983,
+	0x00038c53, 0x0003c225,	0x0003fb28,
+	0x0004378b, 0x00047783,	0x0004bb44,
+	0x0005030a, 0x00054f10,	0x00059f98,
+	0x0005f4e5, 0x00064f40,	0x0006aef6,
+	0x00071457, 0x00077fbb,	0x0007f17b,
+};
+
+/* treble table for TAS3001c */
+/* 0 = -18 dB, 72 = 18 dB in 0.5 dB step */
+static unsigned int treble_volume_table[] = {
+	0x96, 0x95, 0x94,
+	0x93, 0x92, 0x91,
+	0x90, 0x8f, 0x8e,
+	0x8d, 0x8c, 0x8b,
+	0x8a, 0x89, 0x88,
+	0x87, 0x86, 0x85,
+	0x84, 0x83, 0x82,
+	0x81, 0x80, 0x7f,
+	0x7e, 0x7d, 0x7c,
+	0x7b, 0x7a, 0x79,
+	0x78, 0x77, 0x76,
+	0x75, 0x74, 0x73,
+	0x72, 0x71, 0x70,
+	0x6e, 0x6d, 0x6c,
+	0x6b, 0x69, 0x68,
+	0x66, 0x65, 0x63,
+	0x62, 0x60, 0x5e,
+	0x5c, 0x5a, 0x57,
+	0x55, 0x52, 0x4f,
+	0x4c, 0x49, 0x45,
+	0x42, 0x3e, 0x3a,
+	0x36, 0x32, 0x2d,
+	0x28, 0x22, 0x1c,
+	0x16, 0x10, 0x09,
+	0x01,
+};
+
+/* bass table for TAS3001c */
+/* 0 = -18 dB, 72 = 18 dB in 0.5 dB step */
+static unsigned int bass_volume_table[] = {
+	0x86, 0x82, 0x7f,
+	0x7d, 0x7a, 0x78,
+	0x76, 0x74, 0x72,
+	0x70, 0x6e, 0x6d,
+	0x6b, 0x69, 0x66,
+	0x64, 0x61, 0x5f,
+	0x5d, 0x5c, 0x5a,
+	0x59, 0x58, 0x56,
+	0x55, 0x54, 0x53,
+	0x51, 0x4f, 0x4d,
+	0x4b, 0x49, 0x46,
+	0x44, 0x42, 0x40,
+	0x3e, 0x3c, 0x3b,
+	0x39, 0x38, 0x36,
+	0x35, 0x33, 0x31,
+	0x30, 0x2e, 0x2c,
+	0x2b, 0x29, 0x28,
+	0x26, 0x25, 0x23,
+	0x21, 0x1f, 0x1c,
+	0x19, 0x18, 0x17,
+	0x16, 0x14, 0x13,
+	0x12, 0x10, 0x0f,
+	0x0d, 0x0b, 0x0a,
+	0x08, 0x06, 0x03,
+	0x01,
+};
+
+/* mixer (pcm) volume table */
+/* 0 = -70 dB, 175 = 18.0 dB in 0.5 dB step */
+static unsigned int mixer_volume_table[] = {
+	0x00014b, 0x00015f, 0x000174,
+	0x00018a, 0x0001a1, 0x0001ba,
+	0x0001d4, 0x0001f0, 0x00020d,
+	0x00022c, 0x00024d, 0x000270,
+	0x000295, 0x0002bc, 0x0002e6,
+	0x000312, 0x000340, 0x000372,
+	0x0003a6, 0x0003dd, 0x000418,
+	0x000456, 0x000498, 0x0004de,
+	0x000528, 0x000576, 0x0005c9,
+	0x000620, 0x00067d, 0x0006e0,
+	0x000748, 0x0007b7, 0x00082c,
+	0x0008a8, 0x00092b, 0x0009b6,
+	0x000a49, 0x000ae5, 0x000b8b,
+	0x000c3a, 0x000cf3, 0x000db8,
+	0x000e88, 0x000f64, 0x00104e,
+	0x001145, 0x00124b, 0x001361,
+	0x001487, 0x0015be, 0x001708,
+	0x001865, 0x0019d8, 0x001b60,
+	0x001cff, 0x001eb7, 0x002089,
+	0x002276, 0x002481, 0x0026ab,
+	0x0028f5, 0x002b63, 0x002df5,
+	0x0030ae, 0x003390, 0x00369e,
+	0x0039db, 0x003d49, 0x0040ea,
+	0x0044c3, 0x0048d6, 0x004d27,
+	0x0051b9, 0x005691, 0x005bb2,
+	0x006121, 0x0066e3, 0x006cfb,
+	0x007370, 0x007a48, 0x008186,
+	0x008933, 0x009154, 0x0099f1,
+	0x00a310, 0x00acba, 0x00b6f6,
+	0x00c1cd, 0x00cd49, 0x00d973,
+	0x00e655, 0x00f3fb, 0x010270,
+	0x0111c0, 0x0121f9, 0x013328,
+	0x01455b, 0x0158a2, 0x016d0e,
+	0x0182af, 0x019999, 0x01b1de,
+	0x01cb94, 0x01e6cf, 0x0203a7,
+	0x022235, 0x024293, 0x0264db,
+	0x02892c, 0x02afa3, 0x02d862,
+	0x03038a, 0x033142, 0x0361af,
+	0x0394fa, 0x03cb50, 0x0404de,
+	0x0441d5, 0x048268, 0x04c6d0,
+	0x050f44, 0x055c04, 0x05ad50,
+	0x06036e, 0x065ea5, 0x06bf44,
+	0x07259d, 0x079207, 0x0804dc,
+	0x087e80, 0x08ff59, 0x0987d5,
+	0x0a1866, 0x0ab189, 0x0b53be,
+	0x0bff91, 0x0cb591, 0x0d765a,
+	0x0e4290, 0x0f1adf, 0x100000,
+	0x10f2b4, 0x11f3c9, 0x13041a,
+	0x14248e, 0x15561a, 0x1699c0,
+	0x17f094, 0x195bb8, 0x1adc61,
+	0x1c73d5, 0x1e236d, 0x1fec98,
+	0x21d0d9, 0x23d1cd, 0x25f125,
+	0x2830af, 0x2a9254, 0x2d1818,
+	0x2fc420, 0x3298b0, 0x35982f,
+	0x38c528, 0x3c224c, 0x3fb278,
+	0x437880, 0x477828, 0x4bb446,
+	0x5030a1, 0x54f106, 0x59f980,
+	0x5f4e52, 0x64f403, 0x6aef5d,
+	0x714575, 0x77fbaa, 0x7f17af,
+};
+
+
+/* treble table for TAS3004 */
+/* 0 = -18 dB, 72 = 18 dB in 0.5 dB step */
+static unsigned int snapper_treble_volume_table[] = {
+	0x96, 0x95, 0x94,
+	0x93, 0x92, 0x91,
+	0x90, 0x8f, 0x8e,
+	0x8d, 0x8c, 0x8b,
+	0x8a, 0x89, 0x88,
+	0x87, 0x86, 0x85,
+	0x84, 0x83, 0x82,
+	0x81, 0x80, 0x7f,
+	0x7e, 0x7d, 0x7c,
+	0x7b, 0x7a, 0x79,
+	0x78, 0x77, 0x76,
+	0x75, 0x74, 0x73,
+	0x72, 0x71, 0x70,
+	0x6f, 0x6d, 0x6c,
+	0x6b, 0x69, 0x68,
+	0x67, 0x65, 0x63,
+	0x62, 0x60, 0x5d,
+	0x5b, 0x59, 0x56,
+	0x53, 0x51, 0x4d,
+	0x4a, 0x47, 0x43,
+	0x3f, 0x3b, 0x36,
+	0x31, 0x2c, 0x26,
+	0x20, 0x1a, 0x13,
+	0x08, 0x04, 0x01,
+	0x01,
+};
+
+/* bass table for TAS3004 */
+/* 0 = -18 dB, 72 = 18 dB in 0.5 dB step */
+static unsigned int snapper_bass_volume_table[] = {
+	0x96, 0x95, 0x94,
+	0x93, 0x92, 0x91,
+	0x90, 0x8f, 0x8e,
+	0x8d, 0x8c, 0x8b,
+	0x8a, 0x89, 0x88,
+	0x87, 0x86, 0x85,
+	0x84, 0x83, 0x82,
+	0x81, 0x80, 0x7f,
+	0x7e, 0x7d, 0x7c,
+	0x7b, 0x7a, 0x79,
+	0x78, 0x77, 0x76,
+	0x75, 0x74, 0x73,
+	0x72, 0x71, 0x6f,
+	0x6e, 0x6d, 0x6b,
+	0x6a, 0x69, 0x67,
+	0x66, 0x65, 0x63,
+	0x62, 0x61, 0x5f,
+	0x5d, 0x5b, 0x58,
+	0x55, 0x52, 0x4f,
+	0x4c, 0x49, 0x46,
+	0x43, 0x3f, 0x3b,
+	0x37, 0x33, 0x2e,
+	0x29, 0x24, 0x1e,
+	0x18, 0x11, 0x0a,
+	0x01,
+};
+