sound/pci/oxygen/xonar_dg_mixer.c - third_party/linux - Git at Google

 /*
  * Mixer controls for the Xonar DG/DGX
  *
  * Copyright (c) Clemens Ladisch <clemens@ladisch.de>
  * Copyright (c) Roman Volkov <v1ron@mail.ru>
  *
  *  This driver is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License, version 2.
  *
  *  This driver 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 driver; if not, see <http://www.gnu.org/licenses/>.
  */

 #include <linux/pci.h>
 #include <linux/delay.h>
 #include <sound/control.h>
 #include <sound/core.h>
 #include <sound/info.h>
 #include <sound/pcm.h>
 #include <sound/tlv.h>
 #include "oxygen.h"
 #include "xonar_dg.h"
 #include "cs4245.h"

 /* analog output select */

 static int output_select_apply(struct oxygen *chip)
 {
 	struct dg *data = chip->model_data;

 	data->cs4245_shadow[CS4245_SIGNAL_SEL] &= ~CS4245_A_OUT_SEL_MASK;
 	if (data->output_sel == PLAYBACK_DST_HP) {
 		/* mute FP (aux output) amplifier, switch rear jack to CS4245 */
 		oxygen_set_bits8(chip, OXYGEN_GPIO_DATA, GPIO_HP_REAR);
 	} else if (data->output_sel == PLAYBACK_DST_HP_FP) {
 		/*
 		 * Unmute FP amplifier, switch rear jack to CS4361;
 		 * I2S channels 2,3,4 should be inactive.
 		 */
 		oxygen_clear_bits8(chip, OXYGEN_GPIO_DATA, GPIO_HP_REAR);
 		data->cs4245_shadow[CS4245_SIGNAL_SEL] |= CS4245_A_OUT_SEL_DAC;
 	} else {
 		/*
 		 * 2.0, 4.0, 5.1: switch to CS4361, mute FP amp.,
 		 * and change playback routing.
 		 */
 		oxygen_clear_bits8(chip, OXYGEN_GPIO_DATA, GPIO_HP_REAR);
 	}
 	return cs4245_write_spi(chip, CS4245_SIGNAL_SEL);
 }

 static int output_select_info(struct snd_kcontrol *ctl,
 			      struct snd_ctl_elem_info *info)
 {
 	static const char *const names[3] = {
 		"Stereo Headphones",
 		"Stereo Headphones FP",
 		"Multichannel",
 	};

 	return snd_ctl_enum_info(info, 1, 3, names);
 }

 static int output_select_get(struct snd_kcontrol *ctl,
 			     struct snd_ctl_elem_value *value)
 {
 	struct oxygen *chip = ctl->private_data;
 	struct dg *data = chip->model_data;

 	mutex_lock(&chip->mutex);
 	value->value.enumerated.item[0] = data->output_sel;
 	mutex_unlock(&chip->mutex);
 	return 0;
 }

 static int output_select_put(struct snd_kcontrol *ctl,
 			     struct snd_ctl_elem_value *value)
 {
 	struct oxygen *chip = ctl->private_data;
 	struct dg *data = chip->model_data;
 	unsigned int new = value->value.enumerated.item[0];
 	int changed = 0;
 	int ret;

 	mutex_lock(&chip->mutex);
 	if (data->output_sel != new) {
 		data->output_sel = new;
 		ret = output_select_apply(chip);
 		changed = ret >= 0 ? 1 : ret;
 		oxygen_update_dac_routing(chip);
 	}
 	mutex_unlock(&chip->mutex);

 	return changed;
 }

 /* CS4245 Headphone Channels A&B Volume Control */

 static int hp_stereo_volume_info(struct snd_kcontrol *ctl,
 				struct snd_ctl_elem_info *info)
 {
 	info->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 	info->count = 2;
 	info->value.integer.min = 0;
 	info->value.integer.max = 255;
 	return 0;
 }

 static int hp_stereo_volume_get(struct snd_kcontrol *ctl,
 				struct snd_ctl_elem_value *val)
 {
 	struct oxygen *chip = ctl->private_data;
 	struct dg *data = chip->model_data;
 	unsigned int tmp;

 	mutex_lock(&chip->mutex);
 	tmp = (~data->cs4245_shadow[CS4245_DAC_A_CTRL]) & 255;
 	val->value.integer.value[0] = tmp;
 	tmp = (~data->cs4245_shadow[CS4245_DAC_B_CTRL]) & 255;
 	val->value.integer.value[1] = tmp;
 	mutex_unlock(&chip->mutex);
 	return 0;
 }

 static int hp_stereo_volume_put(struct snd_kcontrol *ctl,
 				struct snd_ctl_elem_value *val)
 {
 	struct oxygen *chip = ctl->private_data;
 	struct dg *data = chip->model_data;
 	int ret;
 	int changed = 0;
 	long new1 = val->value.integer.value[0];
 	long new2 = val->value.integer.value[1];

 	if ((new1 > 255) || (new1 < 0) || (new2 > 255) || (new2 < 0))
 		return -EINVAL;

 	mutex_lock(&chip->mutex);
 	if ((data->cs4245_shadow[CS4245_DAC_A_CTRL] != ~new1) ||
 	    (data->cs4245_shadow[CS4245_DAC_B_CTRL] != ~new2)) {
 		data->cs4245_shadow[CS4245_DAC_A_CTRL] = ~new1;
 		data->cs4245_shadow[CS4245_DAC_B_CTRL] = ~new2;
 		ret = cs4245_write_spi(chip, CS4245_DAC_A_CTRL);
 		if (ret >= 0)
 			ret = cs4245_write_spi(chip, CS4245_DAC_B_CTRL);
 		changed = ret >= 0 ? 1 : ret;
 	}
 	mutex_unlock(&chip->mutex);

 	return changed;
 }

 /* Headphone Mute */

 static int hp_mute_get(struct snd_kcontrol *ctl,
 			struct snd_ctl_elem_value *val)
 {
 	struct oxygen *chip = ctl->private_data;
 	struct dg *data = chip->model_data;

 	mutex_lock(&chip->mutex);
 	val->value.integer.value[0] =
 		!(data->cs4245_shadow[CS4245_DAC_CTRL_1] & CS4245_MUTE_DAC);
 	mutex_unlock(&chip->mutex);
 	return 0;
 }

 static int hp_mute_put(struct snd_kcontrol *ctl,
 			struct snd_ctl_elem_value *val)
 {
 	struct oxygen *chip = ctl->private_data;
 	struct dg *data = chip->model_data;
 	int ret;
 	int changed;

 	if (val->value.integer.value[0] > 1)
 		return -EINVAL;
 	mutex_lock(&chip->mutex);
 	data->cs4245_shadow[CS4245_DAC_CTRL_1] &= ~CS4245_MUTE_DAC;
 	data->cs4245_shadow[CS4245_DAC_CTRL_1] |=
 		(~val->value.integer.value[0] << 2) & CS4245_MUTE_DAC;
 	ret = cs4245_write_spi(chip, CS4245_DAC_CTRL_1);
 	changed = ret >= 0 ? 1 : ret;
 	mutex_unlock(&chip->mutex);
 	return changed;
 }

 /* capture volume for all sources */

 static int input_volume_apply(struct oxygen *chip, char left, char right)
 {
 	struct dg *data = chip->model_data;
 	int ret;

 	data->cs4245_shadow[CS4245_PGA_A_CTRL] = left;
 	data->cs4245_shadow[CS4245_PGA_B_CTRL] = right;
 	ret = cs4245_write_spi(chip, CS4245_PGA_A_CTRL);
 	if (ret < 0)
 		return ret;
 	return cs4245_write_spi(chip, CS4245_PGA_B_CTRL);
 }

 static int input_vol_info(struct snd_kcontrol *ctl,
 			  struct snd_ctl_elem_info *info)
 {
 	info->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 	info->count = 2;
 	info->value.integer.min = 2 * -12;
 	info->value.integer.max = 2 * 12;
 	return 0;
 }

 static int input_vol_get(struct snd_kcontrol *ctl,
 			 struct snd_ctl_elem_value *value)
 {
 	struct oxygen *chip = ctl->private_data;
 	struct dg *data = chip->model_data;
 	unsigned int idx = ctl->private_value;

 	mutex_lock(&chip->mutex);
 	value->value.integer.value[0] = data->input_vol[idx][0];
 	value->value.integer.value[1] = data->input_vol[idx][1];
 	mutex_unlock(&chip->mutex);
 	return 0;
 }

 static int input_vol_put(struct snd_kcontrol *ctl,
 			 struct snd_ctl_elem_value *value)
 {
 	struct oxygen *chip = ctl->private_data;
 	struct dg *data = chip->model_data;
 	unsigned int idx = ctl->private_value;
 	int changed = 0;
 	int ret = 0;

 	if (value->value.integer.value[0] < 2 * -12 ||
 	    value->value.integer.value[0] > 2 * 12 ||
 	    value->value.integer.value[1] < 2 * -12 ||
 	    value->value.integer.value[1] > 2 * 12)
 		return -EINVAL;
 	mutex_lock(&chip->mutex);
 	changed = data->input_vol[idx][0] != value->value.integer.value[0] ||
 		  data->input_vol[idx][1] != value->value.integer.value[1];
 	if (changed) {
 		data->input_vol[idx][0] = value->value.integer.value[0];
 		data->input_vol[idx][1] = value->value.integer.value[1];
 		if (idx == data->input_sel) {
 			ret = input_volume_apply(chip,
 				data->input_vol[idx][0],
 				data->input_vol[idx][1]);
 		}
 		changed = ret >= 0 ? 1 : ret;
 	}
 	mutex_unlock(&chip->mutex);
 	return changed;
 }

 /* Capture Source */

 static int input_source_apply(struct oxygen *chip)
 {
 	struct dg *data = chip->model_data;

 	data->cs4245_shadow[CS4245_ANALOG_IN] &= ~CS4245_SEL_MASK;
 	if (data->input_sel == CAPTURE_SRC_FP_MIC)
 		data->cs4245_shadow[CS4245_ANALOG_IN] |= CS4245_SEL_INPUT_2;
 	else if (data->input_sel == CAPTURE_SRC_LINE)
 		data->cs4245_shadow[CS4245_ANALOG_IN] |= CS4245_SEL_INPUT_4;
 	else if (data->input_sel != CAPTURE_SRC_MIC)
 		data->cs4245_shadow[CS4245_ANALOG_IN] |= CS4245_SEL_INPUT_1;
 	return cs4245_write_spi(chip, CS4245_ANALOG_IN);
 }

 static int input_sel_info(struct snd_kcontrol *ctl,
 			  struct snd_ctl_elem_info *info)
 {
 	static const char *const names[4] = {
 		"Mic", "Front Mic", "Line", "Aux"
 	};

 	return snd_ctl_enum_info(info, 1, 4, names);
 }

 static int input_sel_get(struct snd_kcontrol *ctl,
 			 struct snd_ctl_elem_value *value)
 {
 	struct oxygen *chip = ctl->private_data;
 	struct dg *data = chip->model_data;

 	mutex_lock(&chip->mutex);
 	value->value.enumerated.item[0] = data->input_sel;
 	mutex_unlock(&chip->mutex);
 	return 0;
 }

 static int input_sel_put(struct snd_kcontrol *ctl,
 			 struct snd_ctl_elem_value *value)
 {
 	struct oxygen *chip = ctl->private_data;
 	struct dg *data = chip->model_data;
 	int changed;
 	int ret;

 	if (value->value.enumerated.item[0] > 3)
 		return -EINVAL;

 	mutex_lock(&chip->mutex);
 	changed = value->value.enumerated.item[0] != data->input_sel;
 	if (changed) {
 		data->input_sel = value->value.enumerated.item[0];

 		ret = input_source_apply(chip);
 		if (ret >= 0)
 			ret = input_volume_apply(chip,
 				data->input_vol[data->input_sel][0],
 				data->input_vol[data->input_sel][1]);
 		changed = ret >= 0 ? 1 : ret;
 	}
 	mutex_unlock(&chip->mutex);
 	return changed;
 }

 /* ADC high-pass filter */

 static int hpf_info(struct snd_kcontrol *ctl, struct snd_ctl_elem_info *info)
 {
 	static const char *const names[2] = { "Active", "Frozen" };

 	return snd_ctl_enum_info(info, 1, 2, names);
 }

 static int hpf_get(struct snd_kcontrol *ctl, struct snd_ctl_elem_value *value)
 {
 	struct oxygen *chip = ctl->private_data;
 	struct dg *data = chip->model_data;

 	value->value.enumerated.item[0] =
 		!!(data->cs4245_shadow[CS4245_ADC_CTRL] & CS4245_HPF_FREEZE);
 	return 0;
 }

 static int hpf_put(struct snd_kcontrol *ctl, struct snd_ctl_elem_value *value)
 {
 	struct oxygen *chip = ctl->private_data;
 	struct dg *data = chip->model_data;
 	u8 reg;
 	int changed;

 	mutex_lock(&chip->mutex);
 	reg = data->cs4245_shadow[CS4245_ADC_CTRL] & ~CS4245_HPF_FREEZE;
 	if (value->value.enumerated.item[0])
 		reg |= CS4245_HPF_FREEZE;
 	changed = reg != data->cs4245_shadow[CS4245_ADC_CTRL];
 	if (changed) {
 		data->cs4245_shadow[CS4245_ADC_CTRL] = reg;
 		cs4245_write_spi(chip, CS4245_ADC_CTRL);
 	}
 	mutex_unlock(&chip->mutex);
 	return changed;
 }

 #define INPUT_VOLUME(xname, index) { \
 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
 	.name = xname, \
 	.access = SNDRV_CTL_ELEM_ACCESS_READWRITE | \
 		  SNDRV_CTL_ELEM_ACCESS_TLV_READ, \
 	.info = input_vol_info, \
 	.get = input_vol_get, \
 	.put = input_vol_put, \
 	.tlv = { .p = pga_db_scale }, \
 	.private_value = index, \
 }
 static const DECLARE_TLV_DB_MINMAX(hp_db_scale, -12550, 0);
 static const DECLARE_TLV_DB_MINMAX(pga_db_scale, -1200, 1200);
 static const struct snd_kcontrol_new dg_controls[] = {
 	{
 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 		.name = "Analog Output Playback Enum",
 		.info = output_select_info,
 		.get = output_select_get,
 		.put = output_select_put,
 	},
 	{
 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 		.name = "Headphone Playback Volume",
 		.access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
 			  SNDRV_CTL_ELEM_ACCESS_TLV_READ,
 		.info = hp_stereo_volume_info,
 		.get = hp_stereo_volume_get,
 		.put = hp_stereo_volume_put,
 		.tlv = { .p = hp_db_scale, },
 	},
 	{
 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 		.name = "Headphone Playback Switch",
 		.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
 		.info = snd_ctl_boolean_mono_info,
 		.get = hp_mute_get,
 		.put = hp_mute_put,
 	},
 	INPUT_VOLUME("Mic Capture Volume", CAPTURE_SRC_MIC),
 	INPUT_VOLUME("Front Mic Capture Volume", CAPTURE_SRC_FP_MIC),
 	INPUT_VOLUME("Line Capture Volume", CAPTURE_SRC_LINE),
 	INPUT_VOLUME("Aux Capture Volume", CAPTURE_SRC_AUX),
 	{
 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 		.name = "Capture Source",
 		.info = input_sel_info,
 		.get = input_sel_get,
 		.put = input_sel_put,
 	},
 	{
 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 		.name = "ADC High-pass Filter Capture Enum",
 		.info = hpf_info,
 		.get = hpf_get,
 		.put = hpf_put,
 	},
 };

 static int dg_control_filter(struct snd_kcontrol_new *template)
 {
 	if (!strncmp(template->name, "Master Playback ", 16))
 		return 1;
 	return 0;
 }

 static int dg_mixer_init(struct oxygen *chip)
 {
 	unsigned int i;
 	int err;

 	output_select_apply(chip);
 	input_source_apply(chip);
 	oxygen_update_dac_routing(chip);

 	for (i = 0; i < ARRAY_SIZE(dg_controls); ++i) {
 		err = snd_ctl_add(chip->card,
 				  snd_ctl_new1(&dg_controls[i], chip));
 		if (err < 0)
 			return err;
 	}

 	return 0;
 }

 const struct oxygen_model model_xonar_dg = {
 	.longname = "C-Media Oxygen HD Audio",
 	.chip = "CMI8786",
 	.init = dg_init,
 	.control_filter = dg_control_filter,
 	.mixer_init = dg_mixer_init,
 	.cleanup = dg_cleanup,
 	.suspend = dg_suspend,
 	.resume = dg_resume,
 	.set_dac_params = set_cs4245_dac_params,
 	.set_adc_params = set_cs4245_adc_params,
 	.adjust_dac_routing = adjust_dg_dac_routing,
 	.dump_registers = dump_cs4245_registers,
 	.model_data_size = sizeof(struct dg),
 	.device_config = PLAYBACK_0_TO_I2S |
 			 PLAYBACK_1_TO_SPDIF |
 			 CAPTURE_0_FROM_I2S_1 |
 			 CAPTURE_1_FROM_SPDIF,
 	.dac_channels_pcm = 6,
 	.dac_channels_mixer = 0,
 	.function_flags = OXYGEN_FUNCTION_SPI,
 	.dac_mclks = OXYGEN_MCLKS(256, 128, 128),
 	.adc_mclks = OXYGEN_MCLKS(256, 128, 128),
 	.dac_i2s_format = OXYGEN_I2S_FORMAT_LJUST,
 	.adc_i2s_format = OXYGEN_I2S_FORMAT_LJUST,
 };
	/*
	* Mixer controls for the Xonar DG/DGX
	*
	* Copyright (c) Clemens Ladisch <clemens@ladisch.de>
	* Copyright (c) Roman Volkov <v1ron@mail.ru>
	*
	* This driver is free software; you can redistribute it and/or modify
	* it under the terms of the GNU General Public License, version 2.
	*
	* This driver 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 driver; if not, see <http://www.gnu.org/licenses/>.
	*/

	#include <linux/pci.h>
	#include <linux/delay.h>
	#include <sound/control.h>
	#include <sound/core.h>
	#include <sound/info.h>
	#include <sound/pcm.h>
	#include <sound/tlv.h>
	#include "oxygen.h"
	#include "xonar_dg.h"
	#include "cs4245.h"

	/* analog output select */

	static int output_select_apply(struct oxygen *chip)
	{
	struct dg *data = chip->model_data;

	data->cs4245_shadow[CS4245_SIGNAL_SEL] &= ~CS4245_A_OUT_SEL_MASK;
	if (data->output_sel == PLAYBACK_DST_HP) {
	/* mute FP (aux output) amplifier, switch rear jack to CS4245 */
	oxygen_set_bits8(chip, OXYGEN_GPIO_DATA, GPIO_HP_REAR);
	} else if (data->output_sel == PLAYBACK_DST_HP_FP) {
	/*
	* Unmute FP amplifier, switch rear jack to CS4361;
	* I2S channels 2,3,4 should be inactive.
	*/
	oxygen_clear_bits8(chip, OXYGEN_GPIO_DATA, GPIO_HP_REAR);
	data->cs4245_shadow[CS4245_SIGNAL_SEL] \|= CS4245_A_OUT_SEL_DAC;
	} else {
	/*
	* 2.0, 4.0, 5.1: switch to CS4361, mute FP amp.,
	* and change playback routing.
	*/
	oxygen_clear_bits8(chip, OXYGEN_GPIO_DATA, GPIO_HP_REAR);
	}
	return cs4245_write_spi(chip, CS4245_SIGNAL_SEL);
	}

	static int output_select_info(struct snd_kcontrol *ctl,
	struct snd_ctl_elem_info *info)
	{
	static const char *const names[3] = {
	"Stereo Headphones",
	"Stereo Headphones FP",
	"Multichannel",
	};

	return snd_ctl_enum_info(info, 1, 3, names);
	}

	static int output_select_get(struct snd_kcontrol *ctl,
	struct snd_ctl_elem_value *value)
	{
	struct oxygen *chip = ctl->private_data;
	struct dg *data = chip->model_data;

	mutex_lock(&chip->mutex);
	value->value.enumerated.item[0] = data->output_sel;
	mutex_unlock(&chip->mutex);
	return 0;
	}

	static int output_select_put(struct snd_kcontrol *ctl,
	struct snd_ctl_elem_value *value)
	{
	struct oxygen *chip = ctl->private_data;
	struct dg *data = chip->model_data;
	unsigned int new = value->value.enumerated.item[0];
	int changed = 0;
	int ret;

	mutex_lock(&chip->mutex);
	if (data->output_sel != new) {
	data->output_sel = new;
	ret = output_select_apply(chip);
	changed = ret >= 0 ? 1 : ret;
	oxygen_update_dac_routing(chip);
	}
	mutex_unlock(&chip->mutex);

	return changed;
	}

	/* CS4245 Headphone Channels A&B Volume Control */

	static int hp_stereo_volume_info(struct snd_kcontrol *ctl,
	struct snd_ctl_elem_info *info)
	{
	info->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
	info->count = 2;
	info->value.integer.min = 0;
	info->value.integer.max = 255;
	return 0;
	}

	static int hp_stereo_volume_get(struct snd_kcontrol *ctl,
	struct snd_ctl_elem_value *val)
	{
	struct oxygen *chip = ctl->private_data;
	struct dg *data = chip->model_data;
	unsigned int tmp;

	mutex_lock(&chip->mutex);
	tmp = (~data->cs4245_shadow[CS4245_DAC_A_CTRL]) & 255;
	val->value.integer.value[0] = tmp;
	tmp = (~data->cs4245_shadow[CS4245_DAC_B_CTRL]) & 255;
	val->value.integer.value[1] = tmp;
	mutex_unlock(&chip->mutex);
	return 0;
	}

	static int hp_stereo_volume_put(struct snd_kcontrol *ctl,
	struct snd_ctl_elem_value *val)
	{
	struct oxygen *chip = ctl->private_data;
	struct dg *data = chip->model_data;
	int ret;
	int changed = 0;
	long new1 = val->value.integer.value[0];
	long new2 = val->value.integer.value[1];

	if ((new1 > 255) \|\| (new1 < 0) \|\| (new2 > 255) \|\| (new2 < 0))
	return -EINVAL;

	mutex_lock(&chip->mutex);
	if ((data->cs4245_shadow[CS4245_DAC_A_CTRL] != ~new1) \|\|
	(data->cs4245_shadow[CS4245_DAC_B_CTRL] != ~new2)) {
	data->cs4245_shadow[CS4245_DAC_A_CTRL] = ~new1;
	data->cs4245_shadow[CS4245_DAC_B_CTRL] = ~new2;
	ret = cs4245_write_spi(chip, CS4245_DAC_A_CTRL);
	if (ret >= 0)
	ret = cs4245_write_spi(chip, CS4245_DAC_B_CTRL);
	changed = ret >= 0 ? 1 : ret;
	}
	mutex_unlock(&chip->mutex);

	return changed;
	}

	/* Headphone Mute */

	static int hp_mute_get(struct snd_kcontrol *ctl,
	struct snd_ctl_elem_value *val)
	{
	struct oxygen *chip = ctl->private_data;
	struct dg *data = chip->model_data;

	mutex_lock(&chip->mutex);
	val->value.integer.value[0] =
	!(data->cs4245_shadow[CS4245_DAC_CTRL_1] & CS4245_MUTE_DAC);
	mutex_unlock(&chip->mutex);
	return 0;
	}

	static int hp_mute_put(struct snd_kcontrol *ctl,
	struct snd_ctl_elem_value *val)
	{
	struct oxygen *chip = ctl->private_data;
	struct dg *data = chip->model_data;
	int ret;
	int changed;

	if (val->value.integer.value[0] > 1)
	return -EINVAL;
	mutex_lock(&chip->mutex);
	data->cs4245_shadow[CS4245_DAC_CTRL_1] &= ~CS4245_MUTE_DAC;
	data->cs4245_shadow[CS4245_DAC_CTRL_1] \|=
	(~val->value.integer.value[0] << 2) & CS4245_MUTE_DAC;
	ret = cs4245_write_spi(chip, CS4245_DAC_CTRL_1);
	changed = ret >= 0 ? 1 : ret;
	mutex_unlock(&chip->mutex);
	return changed;
	}

	/* capture volume for all sources */

	static int input_volume_apply(struct oxygen *chip, char left, char right)
	{
	struct dg *data = chip->model_data;
	int ret;

	data->cs4245_shadow[CS4245_PGA_A_CTRL] = left;
	data->cs4245_shadow[CS4245_PGA_B_CTRL] = right;
	ret = cs4245_write_spi(chip, CS4245_PGA_A_CTRL);
	if (ret < 0)
	return ret;
	return cs4245_write_spi(chip, CS4245_PGA_B_CTRL);
	}

	static int input_vol_info(struct snd_kcontrol *ctl,
	struct snd_ctl_elem_info *info)
	{
	info->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
	info->count = 2;
	info->value.integer.min = 2 * -12;
	info->value.integer.max = 2 * 12;
	return 0;
	}

	static int input_vol_get(struct snd_kcontrol *ctl,
	struct snd_ctl_elem_value *value)
	{
	struct oxygen *chip = ctl->private_data;
	struct dg *data = chip->model_data;
	unsigned int idx = ctl->private_value;

	mutex_lock(&chip->mutex);
	value->value.integer.value[0] = data->input_vol[idx][0];
	value->value.integer.value[1] = data->input_vol[idx][1];
	mutex_unlock(&chip->mutex);
	return 0;
	}

	static int input_vol_put(struct snd_kcontrol *ctl,
	struct snd_ctl_elem_value *value)
	{
	struct oxygen *chip = ctl->private_data;
	struct dg *data = chip->model_data;
	unsigned int idx = ctl->private_value;
	int changed = 0;
	int ret = 0;

	if (value->value.integer.value[0] < 2 * -12 \|\|
	value->value.integer.value[0] > 2 * 12 \|\|
	value->value.integer.value[1] < 2 * -12 \|\|
	value->value.integer.value[1] > 2 * 12)
	return -EINVAL;
	mutex_lock(&chip->mutex);
	changed = data->input_vol[idx][0] != value->value.integer.value[0] \|\|
	data->input_vol[idx][1] != value->value.integer.value[1];
	if (changed) {
	data->input_vol[idx][0] = value->value.integer.value[0];
	data->input_vol[idx][1] = value->value.integer.value[1];
	if (idx == data->input_sel) {
	ret = input_volume_apply(chip,
	data->input_vol[idx][0],
	data->input_vol[idx][1]);
	}
	changed = ret >= 0 ? 1 : ret;
	}
	mutex_unlock(&chip->mutex);
	return changed;
	}

	/* Capture Source */

	static int input_source_apply(struct oxygen *chip)
	{
	struct dg *data = chip->model_data;

	data->cs4245_shadow[CS4245_ANALOG_IN] &= ~CS4245_SEL_MASK;
	if (data->input_sel == CAPTURE_SRC_FP_MIC)
	data->cs4245_shadow[CS4245_ANALOG_IN] \|= CS4245_SEL_INPUT_2;
	else if (data->input_sel == CAPTURE_SRC_LINE)
	data->cs4245_shadow[CS4245_ANALOG_IN] \|= CS4245_SEL_INPUT_4;
	else if (data->input_sel != CAPTURE_SRC_MIC)
	data->cs4245_shadow[CS4245_ANALOG_IN] \|= CS4245_SEL_INPUT_1;
	return cs4245_write_spi(chip, CS4245_ANALOG_IN);
	}

	static int input_sel_info(struct snd_kcontrol *ctl,
	struct snd_ctl_elem_info *info)
	{
	static const char *const names[4] = {
	"Mic", "Front Mic", "Line", "Aux"
	};

	return snd_ctl_enum_info(info, 1, 4, names);
	}

	static int input_sel_get(struct snd_kcontrol *ctl,
	struct snd_ctl_elem_value *value)
	{
	struct oxygen *chip = ctl->private_data;
	struct dg *data = chip->model_data;

	mutex_lock(&chip->mutex);
	value->value.enumerated.item[0] = data->input_sel;
	mutex_unlock(&chip->mutex);
	return 0;
	}

	static int input_sel_put(struct snd_kcontrol *ctl,
	struct snd_ctl_elem_value *value)
	{
	struct oxygen *chip = ctl->private_data;
	struct dg *data = chip->model_data;
	int changed;
	int ret;

	if (value->value.enumerated.item[0] > 3)
	return -EINVAL;

	mutex_lock(&chip->mutex);
	changed = value->value.enumerated.item[0] != data->input_sel;
	if (changed) {
	data->input_sel = value->value.enumerated.item[0];

	ret = input_source_apply(chip);
	if (ret >= 0)
	ret = input_volume_apply(chip,
	data->input_vol[data->input_sel][0],
	data->input_vol[data->input_sel][1]);
	changed = ret >= 0 ? 1 : ret;
	}
	mutex_unlock(&chip->mutex);
	return changed;
	}

	/* ADC high-pass filter */

	static int hpf_info(struct snd_kcontrol ctl, struct snd_ctl_elem_info info)
	{
	static const char *const names[2] = { "Active", "Frozen" };

	return snd_ctl_enum_info(info, 1, 2, names);
	}

	static int hpf_get(struct snd_kcontrol ctl, struct snd_ctl_elem_value value)
	{
	struct oxygen *chip = ctl->private_data;
	struct dg *data = chip->model_data;

	value->value.enumerated.item[0] =
	!!(data->cs4245_shadow[CS4245_ADC_CTRL] & CS4245_HPF_FREEZE);
	return 0;
	}

	static int hpf_put(struct snd_kcontrol ctl, struct snd_ctl_elem_value value)
	{
	struct oxygen *chip = ctl->private_data;
	struct dg *data = chip->model_data;
	u8 reg;
	int changed;

	mutex_lock(&chip->mutex);
	reg = data->cs4245_shadow[CS4245_ADC_CTRL] & ~CS4245_HPF_FREEZE;
	if (value->value.enumerated.item[0])
	reg \|= CS4245_HPF_FREEZE;
	changed = reg != data->cs4245_shadow[CS4245_ADC_CTRL];
	if (changed) {
	data->cs4245_shadow[CS4245_ADC_CTRL] = reg;
	cs4245_write_spi(chip, CS4245_ADC_CTRL);
	}
	mutex_unlock(&chip->mutex);
	return changed;
	}

	#define INPUT_VOLUME(xname, index) { \
	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
	.name = xname, \
	.access = SNDRV_CTL_ELEM_ACCESS_READWRITE \| \
	SNDRV_CTL_ELEM_ACCESS_TLV_READ, \
	.info = input_vol_info, \
	.get = input_vol_get, \
	.put = input_vol_put, \
	.tlv = { .p = pga_db_scale }, \
	.private_value = index, \
	}
	static const DECLARE_TLV_DB_MINMAX(hp_db_scale, -12550, 0);
	static const DECLARE_TLV_DB_MINMAX(pga_db_scale, -1200, 1200);
	static const struct snd_kcontrol_new dg_controls[] = {
	{
	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
	.name = "Analog Output Playback Enum",
	.info = output_select_info,
	.get = output_select_get,
	.put = output_select_put,
	},
	{
	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
	.name = "Headphone Playback Volume",
	.access = SNDRV_CTL_ELEM_ACCESS_READWRITE \|
	SNDRV_CTL_ELEM_ACCESS_TLV_READ,
	.info = hp_stereo_volume_info,
	.get = hp_stereo_volume_get,
	.put = hp_stereo_volume_put,
	.tlv = { .p = hp_db_scale, },
	},
	{
	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
	.name = "Headphone Playback Switch",
	.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
	.info = snd_ctl_boolean_mono_info,
	.get = hp_mute_get,
	.put = hp_mute_put,
	},
	INPUT_VOLUME("Mic Capture Volume", CAPTURE_SRC_MIC),
	INPUT_VOLUME("Front Mic Capture Volume", CAPTURE_SRC_FP_MIC),
	INPUT_VOLUME("Line Capture Volume", CAPTURE_SRC_LINE),
	INPUT_VOLUME("Aux Capture Volume", CAPTURE_SRC_AUX),
	{
	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
	.name = "Capture Source",
	.info = input_sel_info,
	.get = input_sel_get,
	.put = input_sel_put,
	},
	{
	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
	.name = "ADC High-pass Filter Capture Enum",
	.info = hpf_info,
	.get = hpf_get,
	.put = hpf_put,
	},
	};

	static int dg_control_filter(struct snd_kcontrol_new *template)
	{
	if (!strncmp(template->name, "Master Playback ", 16))
	return 1;
	return 0;
	}

	static int dg_mixer_init(struct oxygen *chip)
	{
	unsigned int i;
	int err;

	output_select_apply(chip);
	input_source_apply(chip);
	oxygen_update_dac_routing(chip);

	for (i = 0; i < ARRAY_SIZE(dg_controls); ++i) {
	err = snd_ctl_add(chip->card,
	snd_ctl_new1(&dg_controls[i], chip));
	if (err < 0)
	return err;
	}

	return 0;
	}

	const struct oxygen_model model_xonar_dg = {
	.longname = "C-Media Oxygen HD Audio",
	.chip = "CMI8786",
	.init = dg_init,
	.control_filter = dg_control_filter,
	.mixer_init = dg_mixer_init,
	.cleanup = dg_cleanup,
	.suspend = dg_suspend,
	.resume = dg_resume,
	.set_dac_params = set_cs4245_dac_params,
	.set_adc_params = set_cs4245_adc_params,
	.adjust_dac_routing = adjust_dg_dac_routing,
	.dump_registers = dump_cs4245_registers,
	.model_data_size = sizeof(struct dg),
	.device_config = PLAYBACK_0_TO_I2S \|
	PLAYBACK_1_TO_SPDIF \|
	CAPTURE_0_FROM_I2S_1 \|
	CAPTURE_1_FROM_SPDIF,
	.dac_channels_pcm = 6,
	.dac_channels_mixer = 0,
	.function_flags = OXYGEN_FUNCTION_SPI,
	.dac_mclks = OXYGEN_MCLKS(256, 128, 128),
	.adc_mclks = OXYGEN_MCLKS(256, 128, 128),
	.dac_i2s_format = OXYGEN_I2S_FORMAT_LJUST,
	.adc_i2s_format = OXYGEN_I2S_FORMAT_LJUST,
	};