Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 903 insertions, 0 deletions

diff --git a/sound/ppc/awacs.c b/sound/ppc/awacs.c
new file mode 100644
index 00000000000..e052bd071e5
--- /dev/null
+++ b/sound/ppc/awacs.c
@@ -0,0 +1,903 @@
+/*
+ * 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 <sound/driver.h>
+#include <asm/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
+typedef struct awacs_amp {
+	unsigned char amp_master;
+	unsigned char amp_vol[2][2];
+	unsigned char amp_tone[2];
+} awacs_amp_t;
+
+#define CHECK_CUDA_AMP() (sys_ctrler == SYS_CTRLER_CUDA)
+
+#endif /* PMAC_AMP_AVAIL */
+
+
+static void snd_pmac_screamer_wait(pmac_t *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(pmac_t *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(pmac_t *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(pmac_t *chip, int reg, int val)
+{
+	snd_pmac_awacs_write(chip, val | (reg << 12));
+}
+
+#ifdef CONFIG_PMAC_PBOOK
+/* Recalibrate chip */
+static void screamer_recalibrate(pmac_t *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 */
+		big_mdelay(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(pmac_t *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(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->count = 2;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = 15;
+	return 0;
+}
+ 
+static int snd_pmac_awacs_get_volume(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+{
+	pmac_t *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(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+{
+	pmac_t *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;
+	int vol[2];
+
+	vol[0] = ucontrol->value.integer.value[0];
+	vol[1] = ucontrol->value.integer.value[1];
+	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(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+{
+	pmac_t *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(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+{
+	pmac_t *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(awacs_amp_t *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(awacs_amp_t *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(awacs_amp_t *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(pmac_t *chip)
+{
+	awacs_amp_t *amp = chip->mixer_data;
+	snd_assert(amp, return);
+	kfree(amp);
+	chip->mixer_data = NULL;
+	chip->mixer_free = NULL;
+}
+
+
+/*
+ * mixer controls
+ */
+static int snd_pmac_awacs_info_volume_amp(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->count = 2;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = 31;
+	return 0;
+}
+ 
+static int snd_pmac_awacs_get_volume_amp(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+{
+	pmac_t *chip = snd_kcontrol_chip(kcontrol);
+	int index = kcontrol->private_value;
+	awacs_amp_t *amp = chip->mixer_data;
+	snd_assert(amp, return -EINVAL);
+	snd_assert(index >= 0 && index <= 1, return -EINVAL);
+	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(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+{
+	pmac_t *chip = snd_kcontrol_chip(kcontrol);
+	int index = kcontrol->private_value;
+	int vol[2];
+	awacs_amp_t *amp = chip->mixer_data;
+	snd_assert(amp, return -EINVAL);
+	snd_assert(index >= 0 && index <= 1, return -EINVAL);
+
+	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(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+{
+	pmac_t *chip = snd_kcontrol_chip(kcontrol);
+	int index = kcontrol->private_value;
+	awacs_amp_t *amp = chip->mixer_data;
+	snd_assert(amp, return -EINVAL);
+	snd_assert(index >= 0 && index <= 1, return -EINVAL);
+	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(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+{
+	pmac_t *chip = snd_kcontrol_chip(kcontrol);
+	int index = kcontrol->private_value;
+	int vol[2];
+	awacs_amp_t *amp = chip->mixer_data;
+	snd_assert(amp, return -EINVAL);
+	snd_assert(index >= 0 && index <= 1, return -EINVAL);
+
+	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(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *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(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+{
+	pmac_t *chip = snd_kcontrol_chip(kcontrol);
+	int index = kcontrol->private_value;
+	awacs_amp_t *amp = chip->mixer_data;
+	snd_assert(amp, return -EINVAL);
+	snd_assert(index >= 0 && index <= 1, return -EINVAL);
+	ucontrol->value.integer.value[0] = amp->amp_tone[index];
+	return 0;
+}
+
+static int snd_pmac_awacs_put_tone_amp(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+{
+	pmac_t *chip = snd_kcontrol_chip(kcontrol);
+	int index = kcontrol->private_value;
+	awacs_amp_t *amp = chip->mixer_data;
+	snd_assert(amp, return -EINVAL);
+	snd_assert(index >= 0 && index <= 1, return -EINVAL);
+	if (ucontrol->value.integer.value[0] != amp->amp_tone[index]) {
+		amp->amp_tone[index] = ucontrol->value.integer.value[0];
+		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(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *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(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+{
+	pmac_t *chip = snd_kcontrol_chip(kcontrol);
+	awacs_amp_t *amp = chip->mixer_data;
+	snd_assert(amp, return -EINVAL);
+	ucontrol->value.integer.value[0] = amp->amp_master;
+	return 0;
+}
+
+static int snd_pmac_awacs_put_master_amp(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+{
+	pmac_t *chip = snd_kcontrol_chip(kcontrol);
+	awacs_amp_t *amp = chip->mixer_data;
+	snd_assert(amp, return -EINVAL);
+	if (ucontrol->value.integer.value[0] != amp->amp_master) {
+		amp->amp_master = ucontrol->value.integer.value[0];
+		awacs_amp_set_master(amp, amp->amp_master);
+		return 1;
+	}
+	return 0;
+}
+
+#define AMP_CH_SPK	0
+#define AMP_CH_HD	1
+
+static snd_kcontrol_new_t snd_pmac_awacs_amp_vol[] __initdata = {
+	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+	  .name = "PC 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 snd_kcontrol_new_t snd_pmac_awacs_amp_hp_sw __initdata = {
+	.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 snd_kcontrol_new_t snd_pmac_awacs_amp_spk_sw __initdata = {
+	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+	.name = "PC 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(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->count = 1;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = 2;
+	return 0;
+}
+
+static int snd_pmac_screamer_mic_boost_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+{
+	pmac_t *chip = snd_kcontrol_chip(kcontrol);
+	int val;
+	unsigned long flags;
+
+	spin_lock_irqsave(&chip->reg_lock, flags);
+	if (chip->awacs_reg[6] & MASK_MIC_BOOST)
+		val = 2;
+	else if (chip->awacs_reg[0] & MASK_GAINLINE)
+		val = 1;
+	else
+		val = 0;
+	spin_unlock_irqrestore(&chip->reg_lock, flags);
+	ucontrol->value.integer.value[0] = val;
+	return 0;
+}
+
+static int snd_pmac_screamer_mic_boost_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+{
+	pmac_t *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] > 0) {
+		val0 |= MASK_GAINLINE;
+		if (ucontrol->value.integer.value[0] > 1)
+			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 snd_kcontrol_new_t snd_pmac_awacs_mixers[] __initdata = {
+	AWACS_VOLUME("Master Playback Volume", 2, 6, 1),
+	AWACS_SWITCH("Master Capture Switch", 1, SHIFT_LOOPTHRU, 0),
+	AWACS_VOLUME("Capture Volume", 0, 4, 0),
+	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 snd_kcontrol_new_t snd_pmac_awacs_mixers2[] __initdata = {
+	AWACS_SWITCH("Line Capture Switch", 0, SHIFT_MUX_LINE, 0),
+	AWACS_SWITCH("Mic Capture Switch", 0, SHIFT_MUX_MIC, 0),
+};
+
+static snd_kcontrol_new_t snd_pmac_screamer_mixers2[] __initdata = {
+	AWACS_SWITCH("Line Capture Switch", 0, SHIFT_MUX_MIC, 0),
+	AWACS_SWITCH("Mic Capture Switch", 0, SHIFT_MUX_LINE, 0),
+};
+
+static snd_kcontrol_new_t snd_pmac_awacs_master_sw __initdata =
+AWACS_SWITCH("Master Playback Switch", 1, SHIFT_HDMUTE, 1);
+
+static snd_kcontrol_new_t snd_pmac_awacs_mic_boost[] __initdata = {
+	AWACS_SWITCH("Mic Boost", 0, SHIFT_GAINLINE, 0),
+};
+
+static snd_kcontrol_new_t snd_pmac_screamer_mic_boost[] __initdata = {
+	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+	  .name = "Mic Boost",
+	  .info = snd_pmac_screamer_mic_boost_info,
+	  .get = snd_pmac_screamer_mic_boost_get,
+	  .put = snd_pmac_screamer_mic_boost_put,
+	},
+};
+
+static snd_kcontrol_new_t snd_pmac_awacs_speaker_vol[] __initdata = {
+	AWACS_VOLUME("PC Speaker Playback Volume", 4, 6, 1),
+};
+static snd_kcontrol_new_t snd_pmac_awacs_speaker_sw __initdata =
+AWACS_SWITCH("PC Speaker Playback Switch", 1, SHIFT_SPKMUTE, 1);
+
+
+/*
+ * add new mixer elements to the card
+ */
+static int build_mixers(pmac_t *chip, int nums, snd_kcontrol_new_t *mixers)
+{
+	int i, err;
+
+	for (i = 0; i < nums; i++) {
+		if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&mixers[i], chip))) < 0)
+			return err;
+	}
+	return 0;
+}
+
+
+/*
+ * restore all registers
+ */
+static void awacs_restore_all_regs(pmac_t *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_PMAC_PBOOK
+static void snd_pmac_awacs_suspend(pmac_t *chip)
+{
+	snd_pmac_awacs_write_noreg(chip, 1, (chip->awacs_reg[1]
+					     | MASK_AMUTE | MASK_CMUTE));
+}
+
+static void snd_pmac_awacs_resume(pmac_t *chip)
+{
+	if (machine_is_compatible("PowerBook3,1")
+	    || machine_is_compatible("PowerBook3,2")) {
+		big_mdelay(100);
+		snd_pmac_awacs_write_reg(chip, 1,
+			chip->awacs_reg[1] & ~MASK_PAROUT);
+		big_mdelay(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) {
+		awacs_amp_t *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_PMAC_PBOOK */
+
+#ifdef PMAC_SUPPORT_AUTOMUTE
+/*
+ * auto-mute stuffs
+ */
+static int snd_pmac_awacs_detect_headphone(pmac_t *chip)
+{
+	return (in_le32(&chip->awacs->codec_stat) & chip->hp_stat_mask) ? 1 : 0;
+}
+
+#ifdef PMAC_AMP_AVAIL
+static int toggle_amp_mute(awacs_amp_t *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(pmac_t *chip, int do_notify)
+{
+	if (chip->auto_mute) {
+#ifdef PMAC_AMP_AVAIL
+		if (chip->mixer_data) {
+			awacs_amp_t *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 (snd_pmac_awacs_detect_headphone(chip))
+				reg &= ~MASK_HDMUTE;
+			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 __init
+snd_pmac_awacs_init(pmac_t *chip)
+{
+	int err, vol;
+
+	/* 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) {
+		chip->awacs_reg[5] = vol; /* FIXME: screamer has loopthru vol control */
+		chip->awacs_reg[6] = MASK_MIC_BOOST; /* FIXME: maybe should be vol << 3 for PCMCIA speaker */
+		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()) {
+		awacs_amp_t *amp = kmalloc(sizeof(*amp), GFP_KERNEL);
+		if (! amp)
+			return -ENOMEM;
+		chip->mixer_data = amp;
+		memset(amp, 0, sizeof(*amp));
+		chip->mixer_free = awacs_amp_free;
+		awacs_amp_set_vol(amp, 0, 63, 63, 0); /* mute and zero vol */
+		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 = 0x04;
+			break;
+		case PMAC_SCREAMER:
+			switch (chip->device_id) {
+			case 0x08:
+				/* 1 = side jack, 2 = front jack */
+				chip->hp_stat_mask = 0x03;
+				break;
+			case 0x00:
+			case 0x05:
+				chip->hp_stat_mask = 0x04;
+				break;
+			default:
+				chip->hp_stat_mask = 0x08;
+				break;
+			}
+			break;
+		default:
+			snd_BUG();
+			break;
+		}
+	}
+
+	/*
+	 * build mixers
+	 */
+	strcpy(chip->card->mixername, "PowerMac AWACS");
+
+	if ((err = build_mixers(chip, ARRAY_SIZE(snd_pmac_awacs_mixers),
+				snd_pmac_awacs_mixers)) < 0)
+		return err;
+	if (chip->model == PMAC_SCREAMER)
+		err = build_mixers(chip, ARRAY_SIZE(snd_pmac_screamer_mixers2),
+				   snd_pmac_screamer_mixers2);
+	else
+		err = build_mixers(chip, ARRAY_SIZE(snd_pmac_awacs_mixers2),
+				   snd_pmac_awacs_mixers2);
+	if (err < 0)
+		return err;
+	chip->master_sw_ctl = snd_ctl_new1(&snd_pmac_awacs_master_sw, chip);
+	if ((err = snd_ctl_add(chip->card, chip->master_sw_ctl)) < 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.
+		 */
+		if ((err = build_mixers(chip, ARRAY_SIZE(snd_pmac_awacs_amp_vol),
+					snd_pmac_awacs_amp_vol)) < 0)
+			return err;
+		/* overwrite */
+		chip->master_sw_ctl = snd_ctl_new1(&snd_pmac_awacs_amp_hp_sw, chip);
+		if ((err = snd_ctl_add(chip->card, chip->master_sw_ctl)) < 0)
+			return err;
+		chip->speaker_sw_ctl = snd_ctl_new1(&snd_pmac_awacs_amp_spk_sw, chip);
+		if ((err = snd_ctl_add(chip->card, chip->speaker_sw_ctl)) < 0)
+			return err;
+	} else
+#endif /* PMAC_AMP_AVAIL */
+	{
+		/* route A = headphone, route C = speaker */
+		if ((err = build_mixers(chip, ARRAY_SIZE(snd_pmac_awacs_speaker_vol),
+					snd_pmac_awacs_speaker_vol)) < 0)
+			return err;
+		chip->speaker_sw_ctl = snd_ctl_new1(&snd_pmac_awacs_speaker_sw, chip);
+		if ((err = snd_ctl_add(chip->card, chip->speaker_sw_ctl)) < 0)
+			return err;
+	}
+
+	if (chip->model == PMAC_SCREAMER) {
+		if ((err = build_mixers(chip, ARRAY_SIZE(snd_pmac_screamer_mic_boost),
+					snd_pmac_screamer_mic_boost)) < 0)
+			return err;
+	} else {
+		if ((err = build_mixers(chip, ARRAY_SIZE(snd_pmac_awacs_mic_boost),
+					snd_pmac_awacs_mic_boost)) < 0)
+			return err;
+	}
+
+	/*
+	 * set lowlevel callbacks
+	 */
+	chip->set_format = snd_pmac_awacs_set_format;
+#ifdef CONFIG_PMAC_PBOOK
+	chip->suspend = snd_pmac_awacs_suspend;
+	chip->resume = snd_pmac_awacs_resume;
+#endif
+#ifdef PMAC_SUPPORT_AUTOMUTE
+	if ((err = snd_pmac_add_automute(chip)) < 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;
+}