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, 1000 insertions, 0 deletions

diff --git a/sound/drivers/vx/vx_mixer.c b/sound/drivers/vx/vx_mixer.c
new file mode 100644
index 000000000000..f00c88886460
--- /dev/null
+++ b/sound/drivers/vx/vx_mixer.c
@@ -0,0 +1,1000 @@
+/*
+ * Driver for Digigram VX soundcards
+ *
+ * Common mixer part
+ *
+ * Copyright (c) 2002 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 <sound/driver.h>
+#include <sound/core.h>
+#include <sound/control.h>
+#include <sound/vx_core.h>
+#include "vx_cmd.h"
+
+
+/*
+ * write a codec data (24bit)
+ */
+static void vx_write_codec_reg(vx_core_t *chip, int codec, unsigned int data)
+{
+	unsigned long flags;
+
+	snd_assert(chip->ops->write_codec, return);
+
+	if (chip->chip_status & VX_STAT_IS_STALE)
+		return;
+
+	spin_lock_irqsave(&chip->lock, flags);
+	chip->ops->write_codec(chip, codec, data);
+	spin_unlock_irqrestore(&chip->lock, flags);
+}
+
+/*
+ * Data type used to access the Codec
+ */
+typedef union {
+	u32 l;
+#ifdef SNDRV_BIG_ENDIAN
+	struct w {
+		u16 h;
+		u16 l;
+	} w;
+	struct b {
+		u8 hh;
+		u8 mh;
+		u8 ml;
+		u8 ll;
+	} b;
+#else /* LITTLE_ENDIAN */
+	struct w {
+		u16 l;
+		u16 h;
+	} w;
+	struct b {
+		u8 ll;
+		u8 ml;
+		u8 mh;
+		u8 hh;
+	} b;
+#endif
+} vx_codec_data_t;
+
+#define SET_CDC_DATA_SEL(di,s)          ((di).b.mh = (u8) (s))
+#define SET_CDC_DATA_REG(di,r)          ((di).b.ml = (u8) (r))
+#define SET_CDC_DATA_VAL(di,d)          ((di).b.ll = (u8) (d))
+#define SET_CDC_DATA_INIT(di)           ((di).l = 0L, SET_CDC_DATA_SEL(di,XX_CODEC_SELECTOR))
+
+/*
+ * set up codec register and write the value
+ * @codec: the codec id, 0 or 1
+ * @reg: register index
+ * @val: data value
+ */
+static void vx_set_codec_reg(vx_core_t *chip, int codec, int reg, int val)
+{
+	vx_codec_data_t data;
+	/* DAC control register */
+	SET_CDC_DATA_INIT(data);
+	SET_CDC_DATA_REG(data, reg);
+	SET_CDC_DATA_VAL(data, val);
+	vx_write_codec_reg(chip, codec, data.l);
+}
+
+
+/*
+ * vx_set_analog_output_level - set the output attenuation level
+ * @codec: the output codec, 0 or 1.  (1 for VXP440 only)
+ * @left: left output level, 0 = mute
+ * @right: right output level
+ */
+static void vx_set_analog_output_level(vx_core_t *chip, int codec, int left, int right)
+{
+	left  = chip->hw->output_level_max - left;
+	right = chip->hw->output_level_max - right;
+
+	if (chip->ops->akm_write) {
+		chip->ops->akm_write(chip, XX_CODEC_LEVEL_LEFT_REGISTER, left);
+		chip->ops->akm_write(chip, XX_CODEC_LEVEL_RIGHT_REGISTER, right);
+	} else {
+		/* convert to attenuation level: 0 = 0dB (max), 0xe3 = -113.5 dB (min) */
+		vx_set_codec_reg(chip, codec, XX_CODEC_LEVEL_LEFT_REGISTER, left);
+		vx_set_codec_reg(chip, codec, XX_CODEC_LEVEL_RIGHT_REGISTER, right);
+	}
+}
+
+
+/*
+ * vx_toggle_dac_mute -  mute/unmute DAC
+ * @mute: 0 = unmute, 1 = mute
+ */
+
+#define DAC_ATTEN_MIN	0x08
+#define DAC_ATTEN_MAX	0x38
+
+void vx_toggle_dac_mute(vx_core_t *chip, int mute)
+{
+	unsigned int i;
+	for (i = 0; i < chip->hw->num_codecs; i++) {
+		if (chip->ops->akm_write)
+			chip->ops->akm_write(chip, XX_CODEC_DAC_CONTROL_REGISTER, mute); /* XXX */
+		else
+			vx_set_codec_reg(chip, i, XX_CODEC_DAC_CONTROL_REGISTER,
+					 mute ? DAC_ATTEN_MAX : DAC_ATTEN_MIN);
+	}
+}
+
+/*
+ * vx_reset_codec - reset and initialize the codecs
+ */
+void vx_reset_codec(vx_core_t *chip, int cold_reset)
+{
+	unsigned int i;
+	int port = chip->type >= VX_TYPE_VXPOCKET ? 0x75 : 0x65;
+
+	chip->ops->reset_codec(chip);
+
+	/* AKM codecs should be initialized in reset_codec callback */
+	if (! chip->ops->akm_write) {
+		/* initialize old codecs */
+		for (i = 0; i < chip->hw->num_codecs; i++) {
+			/* DAC control register (change level when zero crossing + mute) */
+			vx_set_codec_reg(chip, i, XX_CODEC_DAC_CONTROL_REGISTER, DAC_ATTEN_MAX);
+			/* ADC control register */
+			vx_set_codec_reg(chip, i, XX_CODEC_ADC_CONTROL_REGISTER, 0x00);
+			/* Port mode register */
+			vx_set_codec_reg(chip, i, XX_CODEC_PORT_MODE_REGISTER, port);
+			/* Clock control register */
+			vx_set_codec_reg(chip, i, XX_CODEC_CLOCK_CONTROL_REGISTER, 0x00);
+		}
+	}
+
+	/* mute analog output */
+	for (i = 0; i < chip->hw->num_codecs; i++) {
+		chip->output_level[i][0] = 0;
+		chip->output_level[i][1] = 0;
+		vx_set_analog_output_level(chip, i, 0, 0);
+	}
+}
+
+/*
+ * change the audio input source
+ * @src: the target source (VX_AUDIO_SRC_XXX)
+ */
+static void vx_change_audio_source(vx_core_t *chip, int src)
+{
+	unsigned long flags;
+
+	if (chip->chip_status & VX_STAT_IS_STALE)
+		return;
+
+	spin_lock_irqsave(&chip->lock, flags);
+	chip->ops->change_audio_source(chip, src);
+	spin_unlock_irqrestore(&chip->lock, flags);
+}
+
+
+/*
+ * change the audio source if necessary and possible
+ * returns 1 if the source is actually changed.
+ */
+int vx_sync_audio_source(vx_core_t *chip)
+{
+	if (chip->audio_source_target == chip->audio_source ||
+	    chip->pcm_running)
+		return 0;
+	vx_change_audio_source(chip, chip->audio_source_target);
+	chip->audio_source = chip->audio_source_target;
+	return 1;
+}
+
+
+/*
+ * audio level, mute, monitoring
+ */
+struct vx_audio_level {
+	unsigned int has_level: 1;
+	unsigned int has_monitor_level: 1;
+	unsigned int has_mute: 1;
+	unsigned int has_monitor_mute: 1;
+	unsigned int mute;
+	unsigned int monitor_mute;
+	short level;
+	short monitor_level;
+};
+
+static int vx_adjust_audio_level(vx_core_t *chip, int audio, int capture,
+				 struct vx_audio_level *info)
+{
+	struct vx_rmh rmh;
+
+	if (chip->chip_status & VX_STAT_IS_STALE)
+		return -EBUSY;
+
+        vx_init_rmh(&rmh, CMD_AUDIO_LEVEL_ADJUST);
+	if (capture)
+		rmh.Cmd[0] |= COMMAND_RECORD_MASK;
+	/* Add Audio IO mask */
+	rmh.Cmd[1] = 1 << audio;
+	rmh.Cmd[2] = 0;
+	if (info->has_level) {
+		rmh.Cmd[0] |=  VALID_AUDIO_IO_DIGITAL_LEVEL;
+		rmh.Cmd[2] |= info->level;
+        }
+	if (info->has_monitor_level) {
+		rmh.Cmd[0] |=  VALID_AUDIO_IO_MONITORING_LEVEL;
+		rmh.Cmd[2] |= ((unsigned int)info->monitor_level << 10);
+        }
+	if (info->has_mute) { 
+		rmh.Cmd[0] |= VALID_AUDIO_IO_MUTE_LEVEL;
+		if (info->mute)
+			rmh.Cmd[2] |= AUDIO_IO_HAS_MUTE_LEVEL;
+	}
+	if (info->has_monitor_mute) {
+		/* validate flag for M2 at least to unmute it */ 
+		rmh.Cmd[0] |=  VALID_AUDIO_IO_MUTE_MONITORING_1 | VALID_AUDIO_IO_MUTE_MONITORING_2;
+		if (info->monitor_mute)
+			rmh.Cmd[2] |= AUDIO_IO_HAS_MUTE_MONITORING_1;
+	}
+
+	return vx_send_msg(chip, &rmh);
+}
+
+    
+#if 0 // not used
+static int vx_read_audio_level(vx_core_t *chip, int audio, int capture,
+			       struct vx_audio_level *info)
+{
+	int err;
+	struct vx_rmh rmh;
+
+	memset(info, 0, sizeof(*info));
+        vx_init_rmh(&rmh, CMD_GET_AUDIO_LEVELS);
+	if (capture)
+		rmh.Cmd[0] |= COMMAND_RECORD_MASK;
+	/* Add Audio IO mask */
+	rmh.Cmd[1] = 1 << audio;
+	err = vx_send_msg(chip, &rmh);
+	if (err < 0)
+		return err;
+	info.level = rmh.Stat[0] & MASK_DSP_WORD_LEVEL;
+	info.monitor_level = (rmh.Stat[0] >> 10) & MASK_DSP_WORD_LEVEL;
+	info.mute = (rmh.Stat[i] & AUDIO_IO_HAS_MUTE_LEVEL) ? 1 : 0;
+	info.monitor_mute = (rmh.Stat[i] & AUDIO_IO_HAS_MUTE_MONITORING_1) ? 1 : 0;
+	return 0;
+}
+#endif // not used
+
+/*
+ * set the monitoring level and mute state of the given audio
+ * no more static, because must be called from vx_pcm to demute monitoring
+ */
+int vx_set_monitor_level(vx_core_t *chip, int audio, int level, int active)
+{
+	struct vx_audio_level info;
+
+	memset(&info, 0, sizeof(info));
+	info.has_monitor_level = 1;
+	info.monitor_level = level;
+	info.has_monitor_mute = 1;
+	info.monitor_mute = !active;
+	chip->audio_monitor[audio] = level;
+	chip->audio_monitor_active[audio] = active;
+	return vx_adjust_audio_level(chip, audio, 0, &info); /* playback only */
+}
+
+
+/*
+ * set the mute status of the given audio
+ */
+static int vx_set_audio_switch(vx_core_t *chip, int audio, int active)
+{
+	struct vx_audio_level info;
+
+	memset(&info, 0, sizeof(info));
+	info.has_mute = 1;
+	info.mute = !active;
+	chip->audio_active[audio] = active;
+	return vx_adjust_audio_level(chip, audio, 0, &info); /* playback only */
+}
+
+/*
+ * set the mute status of the given audio
+ */
+static int vx_set_audio_gain(vx_core_t *chip, int audio, int capture, int level)
+{
+	struct vx_audio_level info;
+
+	memset(&info, 0, sizeof(info));
+	info.has_level = 1;
+	info.level = level;
+	chip->audio_gain[capture][audio] = level;
+	return vx_adjust_audio_level(chip, audio, capture, &info);
+}
+
+/*
+ * reset all audio levels
+ */
+static void vx_reset_audio_levels(vx_core_t *chip)
+{
+	unsigned int i, c;
+	struct vx_audio_level info;
+
+	memset(chip->audio_gain, 0, sizeof(chip->audio_gain));
+	memset(chip->audio_active, 0, sizeof(chip->audio_active));
+	memset(chip->audio_monitor, 0, sizeof(chip->audio_monitor));
+	memset(chip->audio_monitor_active, 0, sizeof(chip->audio_monitor_active));
+
+	for (c = 0; c < 2; c++) {
+		for (i = 0; i < chip->hw->num_ins * 2; i++) {
+			memset(&info, 0, sizeof(info));
+			if (c == 0) {
+				info.has_monitor_level = 1;
+				info.has_mute = 1;
+				info.has_monitor_mute = 1;
+			}
+			info.has_level = 1;
+			info.level = CVAL_0DB; /* default: 0dB */
+			vx_adjust_audio_level(chip, i, c, &info);
+			chip->audio_gain[c][i] = CVAL_0DB;
+			chip->audio_monitor[i] = CVAL_0DB;
+		}
+	}
+}
+
+
+/*
+ * VU, peak meter record
+ */
+
+#define VU_METER_CHANNELS	2
+
+struct vx_vu_meter {
+	int saturated;
+	int vu_level;
+	int peak_level;
+};
+
+/*
+ * get the VU and peak meter values
+ * @audio: the audio index
+ * @capture: 0 = playback, 1 = capture operation
+ * @info: the array of vx_vu_meter records (size = 2).
+ */
+static int vx_get_audio_vu_meter(vx_core_t *chip, int audio, int capture, struct vx_vu_meter *info)
+{
+	struct vx_rmh rmh;
+	int i, err;
+
+	if (chip->chip_status & VX_STAT_IS_STALE)
+		return -EBUSY;
+
+	vx_init_rmh(&rmh, CMD_AUDIO_VU_PIC_METER);
+	rmh.LgStat += 2 * VU_METER_CHANNELS;
+	if (capture)
+		rmh.Cmd[0] |= COMMAND_RECORD_MASK;
+    
+        /* Add Audio IO mask */
+	rmh.Cmd[1] = 0;
+	for (i = 0; i < VU_METER_CHANNELS; i++)
+		rmh.Cmd[1] |= 1 << (audio + i);
+	err = vx_send_msg(chip, &rmh);
+	if (err < 0)
+		return err;
+	/* Read response */
+	for (i = 0; i < 2 * VU_METER_CHANNELS; i +=2) {
+		info->saturated = (rmh.Stat[0] & (1 << (audio + i))) ? 1 : 0;
+		info->vu_level = rmh.Stat[i + 1];
+		info->peak_level = rmh.Stat[i + 2];
+		info++;
+	}
+	return 0;
+}
+   
+
+/*
+ * control API entries
+ */
+
+/*
+ * output level control
+ */
+static int vx_output_level_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
+{
+	vx_core_t *chip = snd_kcontrol_chip(kcontrol);
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->count = 2;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = chip->hw->output_level_max;
+	return 0;
+}
+
+static int vx_output_level_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+{
+	vx_core_t *chip = snd_kcontrol_chip(kcontrol);
+	int codec = kcontrol->id.index;
+	down(&chip->mixer_mutex);
+	ucontrol->value.integer.value[0] = chip->output_level[codec][0];
+	ucontrol->value.integer.value[1] = chip->output_level[codec][1];
+	up(&chip->mixer_mutex);
+	return 0;
+}
+
+static int vx_output_level_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+{
+	vx_core_t *chip = snd_kcontrol_chip(kcontrol);
+	int codec = kcontrol->id.index;
+	down(&chip->mixer_mutex);
+	if (ucontrol->value.integer.value[0] != chip->output_level[codec][0] ||
+	    ucontrol->value.integer.value[1] != chip->output_level[codec][1]) {
+		vx_set_analog_output_level(chip, codec,
+					   ucontrol->value.integer.value[0],
+					   ucontrol->value.integer.value[1]);
+		chip->output_level[codec][0] = ucontrol->value.integer.value[0];
+		chip->output_level[codec][1] = ucontrol->value.integer.value[1];
+		up(&chip->mixer_mutex);
+		return 1;
+	}
+	up(&chip->mixer_mutex);
+	return 0;
+}
+
+static snd_kcontrol_new_t vx_control_output_level = {
+	.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
+	.name =		"Master Playback Volume",
+	.info =		vx_output_level_info,
+	.get =		vx_output_level_get,
+	.put =		vx_output_level_put,
+};
+
+/*
+ * audio source select
+ */
+static int vx_audio_src_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
+{
+	static char *texts_mic[3] = {
+		"Digital", "Line", "Mic"
+	};
+	static char *texts_vx2[2] = {
+		"Digital", "Analog"
+	};
+	vx_core_t *chip = snd_kcontrol_chip(kcontrol);
+
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
+	uinfo->count = 1;
+	if (chip->type >= VX_TYPE_VXPOCKET) {
+		uinfo->value.enumerated.items = 3;
+		if (uinfo->value.enumerated.item > 2)
+			uinfo->value.enumerated.item = 2;
+		strcpy(uinfo->value.enumerated.name,
+		       texts_mic[uinfo->value.enumerated.item]);
+	} else {
+		uinfo->value.enumerated.items = 2;
+		if (uinfo->value.enumerated.item > 1)
+			uinfo->value.enumerated.item = 1;
+		strcpy(uinfo->value.enumerated.name,
+		       texts_vx2[uinfo->value.enumerated.item]);
+	}
+	return 0;
+}
+
+static int vx_audio_src_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+{
+	vx_core_t *chip = snd_kcontrol_chip(kcontrol);
+	ucontrol->value.enumerated.item[0] = chip->audio_source_target;
+	return 0;
+}
+
+static int vx_audio_src_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+{
+	vx_core_t *chip = snd_kcontrol_chip(kcontrol);
+	down(&chip->mixer_mutex);
+	if (chip->audio_source_target != ucontrol->value.enumerated.item[0]) {
+		chip->audio_source_target = ucontrol->value.enumerated.item[0];
+		vx_sync_audio_source(chip);
+		up(&chip->mixer_mutex);
+		return 1;
+	}
+	up(&chip->mixer_mutex);
+	return 0;
+}
+
+static snd_kcontrol_new_t vx_control_audio_src = {
+	.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
+	.name =		"Capture Source",
+	.info =		vx_audio_src_info,
+	.get =		vx_audio_src_get,
+	.put =		vx_audio_src_put,
+};
+
+/*
+ * clock mode selection
+ */
+static int vx_clock_mode_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
+{
+	static char *texts[3] = {
+		"Auto", "Internal", "External"
+	};
+
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
+	uinfo->count = 1;
+	uinfo->value.enumerated.items = 3;
+	if (uinfo->value.enumerated.item > 2)
+		uinfo->value.enumerated.item = 2;
+	strcpy(uinfo->value.enumerated.name,
+	       texts[uinfo->value.enumerated.item]);
+	return 0;
+}
+
+static int vx_clock_mode_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+{
+	vx_core_t *chip = snd_kcontrol_chip(kcontrol);
+	ucontrol->value.enumerated.item[0] = chip->clock_mode;
+	return 0;
+}
+
+static int vx_clock_mode_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+{
+	vx_core_t *chip = snd_kcontrol_chip(kcontrol);
+	down(&chip->mixer_mutex);
+	if (chip->clock_mode != ucontrol->value.enumerated.item[0]) {
+		chip->clock_mode = ucontrol->value.enumerated.item[0];
+		vx_set_clock(chip, chip->freq);
+		up(&chip->mixer_mutex);
+		return 1;
+	}
+	up(&chip->mixer_mutex);
+	return 0;
+}
+
+static snd_kcontrol_new_t vx_control_clock_mode = {
+	.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
+	.name =		"Clock Mode",
+	.info =		vx_clock_mode_info,
+	.get =		vx_clock_mode_get,
+	.put =		vx_clock_mode_put,
+};
+
+/*
+ * Audio Gain
+ */
+static int vx_audio_gain_info(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 = CVAL_MAX;
+	return 0;
+}
+
+static int vx_audio_gain_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+{
+	vx_core_t *chip = snd_kcontrol_chip(kcontrol);
+	int audio = kcontrol->private_value & 0xff;
+	int capture = (kcontrol->private_value >> 8) & 1;
+
+	down(&chip->mixer_mutex);
+	ucontrol->value.integer.value[0] = chip->audio_gain[capture][audio];
+	ucontrol->value.integer.value[1] = chip->audio_gain[capture][audio+1];
+	up(&chip->mixer_mutex);
+	return 0;
+}
+
+static int vx_audio_gain_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+{
+	vx_core_t *chip = snd_kcontrol_chip(kcontrol);
+	int audio = kcontrol->private_value & 0xff;
+	int capture = (kcontrol->private_value >> 8) & 1;
+
+	down(&chip->mixer_mutex);
+	if (ucontrol->value.integer.value[0] != chip->audio_gain[capture][audio] ||
+	    ucontrol->value.integer.value[1] != chip->audio_gain[capture][audio+1]) {
+		vx_set_audio_gain(chip, audio, capture, ucontrol->value.integer.value[0]);
+		vx_set_audio_gain(chip, audio+1, capture, ucontrol->value.integer.value[1]);
+		up(&chip->mixer_mutex);
+		return 1;
+	}
+	up(&chip->mixer_mutex);
+	return 0;
+}
+
+static int vx_audio_monitor_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+{
+	vx_core_t *chip = snd_kcontrol_chip(kcontrol);
+	int audio = kcontrol->private_value & 0xff;
+
+	down(&chip->mixer_mutex);
+	ucontrol->value.integer.value[0] = chip->audio_monitor[audio];
+	ucontrol->value.integer.value[1] = chip->audio_monitor[audio+1];
+	up(&chip->mixer_mutex);
+	return 0;
+}
+
+static int vx_audio_monitor_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+{
+	vx_core_t *chip = snd_kcontrol_chip(kcontrol);
+	int audio = kcontrol->private_value & 0xff;
+
+	down(&chip->mixer_mutex);
+	if (ucontrol->value.integer.value[0] != chip->audio_monitor[audio] ||
+	    ucontrol->value.integer.value[1] != chip->audio_monitor[audio+1]) {
+		vx_set_monitor_level(chip, audio, ucontrol->value.integer.value[0],
+				     chip->audio_monitor_active[audio]);
+		vx_set_monitor_level(chip, audio+1, ucontrol->value.integer.value[1],
+				     chip->audio_monitor_active[audio+1]);
+		up(&chip->mixer_mutex);
+		return 1;
+	}
+	up(&chip->mixer_mutex);
+	return 0;
+}
+
+static int vx_audio_sw_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
+	uinfo->count = 2;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = 1;
+	return 0;
+}
+
+static int vx_audio_sw_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+{
+	vx_core_t *chip = snd_kcontrol_chip(kcontrol);
+	int audio = kcontrol->private_value & 0xff;
+
+	down(&chip->mixer_mutex);
+	ucontrol->value.integer.value[0] = chip->audio_active[audio];
+	ucontrol->value.integer.value[1] = chip->audio_active[audio+1];
+	up(&chip->mixer_mutex);
+	return 0;
+}
+
+static int vx_audio_sw_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+{
+	vx_core_t *chip = snd_kcontrol_chip(kcontrol);
+	int audio = kcontrol->private_value & 0xff;
+
+	down(&chip->mixer_mutex);
+	if (ucontrol->value.integer.value[0] != chip->audio_active[audio] ||
+	    ucontrol->value.integer.value[1] != chip->audio_active[audio+1]) {
+		vx_set_audio_switch(chip, audio, ucontrol->value.integer.value[0]);
+		vx_set_audio_switch(chip, audio+1, ucontrol->value.integer.value[1]);
+		up(&chip->mixer_mutex);
+		return 1;
+	}
+	up(&chip->mixer_mutex);
+	return 0;
+}
+
+static int vx_monitor_sw_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+{
+	vx_core_t *chip = snd_kcontrol_chip(kcontrol);
+	int audio = kcontrol->private_value & 0xff;
+
+	down(&chip->mixer_mutex);
+	ucontrol->value.integer.value[0] = chip->audio_monitor_active[audio];
+	ucontrol->value.integer.value[1] = chip->audio_monitor_active[audio+1];
+	up(&chip->mixer_mutex);
+	return 0;
+}
+
+static int vx_monitor_sw_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+{
+	vx_core_t *chip = snd_kcontrol_chip(kcontrol);
+	int audio = kcontrol->private_value & 0xff;
+
+	down(&chip->mixer_mutex);
+	if (ucontrol->value.integer.value[0] != chip->audio_monitor_active[audio] ||
+	    ucontrol->value.integer.value[1] != chip->audio_monitor_active[audio+1]) {
+		vx_set_monitor_level(chip, audio, chip->audio_monitor[audio],
+				     ucontrol->value.integer.value[0]);
+		vx_set_monitor_level(chip, audio+1, chip->audio_monitor[audio+1],
+				     ucontrol->value.integer.value[1]);
+		up(&chip->mixer_mutex);
+		return 1;
+	}
+	up(&chip->mixer_mutex);
+	return 0;
+}
+
+static snd_kcontrol_new_t vx_control_audio_gain = {
+	.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
+	/* name will be filled later */
+	.info =         vx_audio_gain_info,
+	.get =          vx_audio_gain_get,
+	.put =          vx_audio_gain_put
+};
+static snd_kcontrol_new_t vx_control_output_switch = {
+	.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
+	.name =         "PCM Playback Switch",
+	.info =         vx_audio_sw_info,
+	.get =          vx_audio_sw_get,
+	.put =          vx_audio_sw_put
+};
+static snd_kcontrol_new_t vx_control_monitor_gain = {
+	.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
+	.name =         "Monitoring Volume",
+	.info =         vx_audio_gain_info,	/* shared */
+	.get =          vx_audio_monitor_get,
+	.put =          vx_audio_monitor_put
+};
+static snd_kcontrol_new_t vx_control_monitor_switch = {
+	.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
+	.name =         "Monitoring Switch",
+	.info =         vx_audio_sw_info,	/* shared */
+	.get =          vx_monitor_sw_get,
+	.put =          vx_monitor_sw_put
+};
+
+
+/*
+ * IEC958 status bits
+ */
+static int vx_iec958_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
+	uinfo->count = 1;
+	return 0;
+}
+
+static int vx_iec958_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+{
+	vx_core_t *chip = snd_kcontrol_chip(kcontrol);
+
+	down(&chip->mixer_mutex);
+	ucontrol->value.iec958.status[0] = (chip->uer_bits >> 0) & 0xff;
+	ucontrol->value.iec958.status[1] = (chip->uer_bits >> 8) & 0xff;
+	ucontrol->value.iec958.status[2] = (chip->uer_bits >> 16) & 0xff;
+	ucontrol->value.iec958.status[3] = (chip->uer_bits >> 24) & 0xff;
+	up(&chip->mixer_mutex);
+        return 0;
+}
+
+static int vx_iec958_mask_get(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t *ucontrol)
+{
+	ucontrol->value.iec958.status[0] = 0xff;
+	ucontrol->value.iec958.status[1] = 0xff;
+	ucontrol->value.iec958.status[2] = 0xff;
+	ucontrol->value.iec958.status[3] = 0xff;
+        return 0;
+}
+
+static int vx_iec958_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+{
+	vx_core_t *chip = snd_kcontrol_chip(kcontrol);
+	unsigned int val;
+
+	val = (ucontrol->value.iec958.status[0] << 0) |
+	      (ucontrol->value.iec958.status[1] << 8) |
+	      (ucontrol->value.iec958.status[2] << 16) |
+	      (ucontrol->value.iec958.status[3] << 24);
+	down(&chip->mixer_mutex);
+	if (chip->uer_bits != val) {
+		chip->uer_bits = val;
+		vx_set_iec958_status(chip, val);
+		up(&chip->mixer_mutex);
+		return 1;
+	}
+	up(&chip->mixer_mutex);
+	return 0;
+}
+
+static snd_kcontrol_new_t vx_control_iec958_mask = {
+	.access =	SNDRV_CTL_ELEM_ACCESS_READ,
+	.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
+	.name =		SNDRV_CTL_NAME_IEC958("",PLAYBACK,MASK),
+	.info =		vx_iec958_info,	/* shared */
+	.get =		vx_iec958_mask_get,
+};
+
+static snd_kcontrol_new_t vx_control_iec958 = {
+	.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
+	.name =         SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
+	.info =         vx_iec958_info,
+	.get =          vx_iec958_get,
+	.put =          vx_iec958_put
+};
+
+
+/*
+ * VU meter
+ */
+
+#define METER_MAX	0xff
+#define METER_SHIFT	16
+
+static int vx_vu_meter_info(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 = METER_MAX;
+	return 0;
+}
+
+static int vx_vu_meter_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+{
+	vx_core_t *chip = snd_kcontrol_chip(kcontrol);
+	struct vx_vu_meter meter[2];
+	int audio = kcontrol->private_value & 0xff;
+	int capture = (kcontrol->private_value >> 8) & 1;
+
+	vx_get_audio_vu_meter(chip, audio, capture, meter);
+	ucontrol->value.integer.value[0] = meter[0].vu_level >> METER_SHIFT;
+	ucontrol->value.integer.value[1] = meter[1].vu_level >> METER_SHIFT;
+	return 0;
+}
+
+static int vx_peak_meter_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+{
+	vx_core_t *chip = snd_kcontrol_chip(kcontrol);
+	struct vx_vu_meter meter[2];
+	int audio = kcontrol->private_value & 0xff;
+	int capture = (kcontrol->private_value >> 8) & 1;
+
+	vx_get_audio_vu_meter(chip, audio, capture, meter);
+	ucontrol->value.integer.value[0] = meter[0].peak_level >> METER_SHIFT;
+	ucontrol->value.integer.value[1] = meter[1].peak_level >> METER_SHIFT;
+	return 0;
+}
+
+static int vx_saturation_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
+	uinfo->count = 2;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = 1;
+	return 0;
+}
+
+static int vx_saturation_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+{
+	vx_core_t *chip = snd_kcontrol_chip(kcontrol);
+	struct vx_vu_meter meter[2];
+	int audio = kcontrol->private_value & 0xff;
+
+	vx_get_audio_vu_meter(chip, audio, 1, meter); /* capture only */
+	ucontrol->value.integer.value[0] = meter[0].saturated;
+	ucontrol->value.integer.value[1] = meter[1].saturated;
+	return 0;
+}
+
+static snd_kcontrol_new_t vx_control_vu_meter = {
+	.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
+	.access =	SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
+	/* name will be filled later */
+	.info =		vx_vu_meter_info,
+	.get =		vx_vu_meter_get,
+};
+
+static snd_kcontrol_new_t vx_control_peak_meter = {
+	.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
+	.access =	SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
+	/* name will be filled later */
+	.info =		vx_vu_meter_info,	/* shared */
+	.get =		vx_peak_meter_get,
+};
+
+static snd_kcontrol_new_t vx_control_saturation = {
+	.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
+	.name =		"Input Saturation",
+	.access =	SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
+	.info =		vx_saturation_info,
+	.get =		vx_saturation_get,
+};
+
+
+
+/*
+ *
+ */
+
+int snd_vx_mixer_new(vx_core_t *chip)
+{
+	unsigned int i, c;
+	int err;
+	snd_kcontrol_new_t temp;
+	snd_card_t *card = chip->card;
+	char name[32];
+
+	strcpy(card->mixername, card->driver);
+
+	/* output level controls */
+	for (i = 0; i < chip->hw->num_outs; i++) {
+		temp = vx_control_output_level;
+		temp.index = i;
+		if ((err = snd_ctl_add(card, snd_ctl_new1(&temp, chip))) < 0)
+			return err;
+	}
+
+	/* PCM volumes, switches, monitoring */
+	for (i = 0; i < chip->hw->num_outs; i++) {
+		int val = i * 2;
+		temp = vx_control_audio_gain;
+		temp.index = i;
+		temp.name = "PCM Playback Volume";
+		temp.private_value = val;
+		if ((err = snd_ctl_add(card, snd_ctl_new1(&temp, chip))) < 0)
+			return err;
+		temp = vx_control_output_switch;
+		temp.index = i;
+		temp.private_value = val;
+		if ((err = snd_ctl_add(card, snd_ctl_new1(&temp, chip))) < 0)
+			return err;
+		temp = vx_control_monitor_gain;
+		temp.index = i;
+		temp.private_value = val;
+		if ((err = snd_ctl_add(card, snd_ctl_new1(&temp, chip))) < 0)
+			return err;
+		temp = vx_control_monitor_switch;
+		temp.index = i;
+		temp.private_value = val;
+		if ((err = snd_ctl_add(card, snd_ctl_new1(&temp, chip))) < 0)
+			return err;
+	}
+	for (i = 0; i < chip->hw->num_outs; i++) {
+		temp = vx_control_audio_gain;
+		temp.index = i;
+		temp.name = "PCM Capture Volume";
+		temp.private_value = (i * 2) | (1 << 8);
+		if ((err = snd_ctl_add(card, snd_ctl_new1(&temp, chip))) < 0)
+			return err;
+	}
+
+	/* Audio source */
+	if ((err = snd_ctl_add(card, snd_ctl_new1(&vx_control_audio_src, chip))) < 0)
+		return err;
+	/* clock mode */
+	if ((err = snd_ctl_add(card, snd_ctl_new1(&vx_control_clock_mode, chip))) < 0)
+		return err;
+	/* IEC958 controls */
+	if ((err = snd_ctl_add(card, snd_ctl_new1(&vx_control_iec958_mask, chip))) < 0)
+		return err;
+	if ((err = snd_ctl_add(card, snd_ctl_new1(&vx_control_iec958, chip))) < 0)
+		return err;
+	/* VU, peak, saturation meters */
+	for (c = 0; c < 2; c++) {
+		static char *dir[2] = { "Output", "Input" };
+		for (i = 0; i < chip->hw->num_ins; i++) {
+			int val = (i * 2) | (c << 8);
+			if (c == 1) {
+				temp = vx_control_saturation;
+				temp.index = i;
+				temp.private_value = val;
+				if ((err = snd_ctl_add(card, snd_ctl_new1(&temp, chip))) < 0)
+					return err;
+			}
+			sprintf(name, "%s VU Meter", dir[c]);
+			temp = vx_control_vu_meter;
+			temp.index = i;
+			temp.name = name;
+			temp.private_value = val;
+			if ((err = snd_ctl_add(card, snd_ctl_new1(&temp, chip))) < 0)
+				return err;
+			sprintf(name, "%s Peak Meter", dir[c]);
+			temp = vx_control_peak_meter;
+			temp.index = i;
+			temp.name = name;
+			temp.private_value = val;
+			if ((err = snd_ctl_add(card, snd_ctl_new1(&temp, chip))) < 0)
+				return err;
+		}
+	}
+	vx_reset_audio_levels(chip);
+	return 0;
+}