diff --git a/sound/pci/oxygen/oxygen.h b/sound/pci/oxygen/oxygen.h
index bd615dbffadb..2ac3b3c8253f 100644
--- a/sound/pci/oxygen/oxygen.h
+++ b/sound/pci/oxygen/oxygen.h
@@ -84,6 +84,7 @@ struct oxygen_model {
 			       struct snd_pcm_hw_params *params);
 	void (*update_dac_volume)(struct oxygen *chip);
 	void (*update_dac_mute)(struct oxygen *chip);
+	void (*update_center_lfe_mix)(struct oxygen *chip, bool mixed);
 	void (*gpio_changed)(struct oxygen *chip);
 	void (*uart_input)(struct oxygen *chip);
 	void (*ac97_switch)(struct oxygen *chip,
diff --git a/sound/pci/oxygen/oxygen_mixer.c b/sound/pci/oxygen/oxygen_mixer.c
index e8e911a86c8e..5dfb5fb73381 100644
--- a/sound/pci/oxygen/oxygen_mixer.c
+++ b/sound/pci/oxygen/oxygen_mixer.c
@@ -99,11 +99,15 @@ static int dac_mute_put(struct snd_kcontrol *ctl,
 
 static int upmix_info(struct snd_kcontrol *ctl, struct snd_ctl_elem_info *info)
 {
-	static const char *const names[3] = {
-		"Front", "Front+Surround", "Front+Surround+Back"
+	static const char *const names[5] = {
+		"Front",
+		"Front+Surround",
+		"Front+Surround+Back",
+		"Front+Surround+Center/LFE",
+		"Front+Surround+Center/LFE+Back",
 	};
 	struct oxygen *chip = ctl->private_data;
-	unsigned int count = 2 + (chip->model.dac_channels == 8);
+	unsigned int count = chip->model.update_center_lfe_mix ? 5 : 3;
 
 	info->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
 	info->count = 1;
@@ -127,7 +131,7 @@ static int upmix_get(struct snd_kcontrol *ctl, struct snd_ctl_elem_value *value)
 void oxygen_update_dac_routing(struct oxygen *chip)
 {
 	/* DAC 0: front, DAC 1: surround, DAC 2: center/LFE, DAC 3: back */
-	static const unsigned int reg_values[3] = {
+	static const unsigned int reg_values[5] = {
 		/* stereo -> front */
 		(0 << OXYGEN_PLAY_DAC0_SOURCE_SHIFT) |
 		(1 << OXYGEN_PLAY_DAC1_SOURCE_SHIFT) |
@@ -143,6 +147,16 @@ void oxygen_update_dac_routing(struct oxygen *chip)
 		(0 << OXYGEN_PLAY_DAC1_SOURCE_SHIFT) |
 		(2 << OXYGEN_PLAY_DAC2_SOURCE_SHIFT) |
 		(0 << OXYGEN_PLAY_DAC3_SOURCE_SHIFT),
+		/* stereo -> front+surround+center/LFE */
+		(0 << OXYGEN_PLAY_DAC0_SOURCE_SHIFT) |
+		(0 << OXYGEN_PLAY_DAC1_SOURCE_SHIFT) |
+		(0 << OXYGEN_PLAY_DAC2_SOURCE_SHIFT) |
+		(3 << OXYGEN_PLAY_DAC3_SOURCE_SHIFT),
+		/* stereo -> front+surround+center/LFE+back */
+		(0 << OXYGEN_PLAY_DAC0_SOURCE_SHIFT) |
+		(0 << OXYGEN_PLAY_DAC1_SOURCE_SHIFT) |
+		(0 << OXYGEN_PLAY_DAC2_SOURCE_SHIFT) |
+		(0 << OXYGEN_PLAY_DAC3_SOURCE_SHIFT),
 	};
 	u8 channels;
 	unsigned int reg_value;
@@ -167,22 +181,23 @@ void oxygen_update_dac_routing(struct oxygen *chip)
 			      OXYGEN_PLAY_DAC1_SOURCE_MASK |
 			      OXYGEN_PLAY_DAC2_SOURCE_MASK |
 			      OXYGEN_PLAY_DAC3_SOURCE_MASK);
+	if (chip->model.update_center_lfe_mix)
+		chip->model.update_center_lfe_mix(chip, chip->dac_routing > 2);
 }
 
 static int upmix_put(struct snd_kcontrol *ctl, struct snd_ctl_elem_value *value)
 {
 	struct oxygen *chip = ctl->private_data;
-	unsigned int count = 2 + (chip->model.dac_channels == 8);
+	unsigned int count = chip->model.update_center_lfe_mix ? 5 : 3;
 	int changed;
 
+	if (value->value.enumerated.item[0] >= count)
+		return -EINVAL;
 	mutex_lock(&chip->mutex);
 	changed = value->value.enumerated.item[0] != chip->dac_routing;
 	if (changed) {
-		chip->dac_routing = min(value->value.enumerated.item[0],
-					count - 1);
-		spin_lock_irq(&chip->reg_lock);
+		chip->dac_routing = value->value.enumerated.item[0];
 		oxygen_update_dac_routing(chip);
-		spin_unlock_irq(&chip->reg_lock);
 	}
 	mutex_unlock(&chip->mutex);
 	return changed;
diff --git a/sound/pci/oxygen/oxygen_pcm.c b/sound/pci/oxygen/oxygen_pcm.c
index ef2345d82b86..1e98333366df 100644
--- a/sound/pci/oxygen/oxygen_pcm.c
+++ b/sound/pci/oxygen/oxygen_pcm.c
@@ -435,6 +435,7 @@ static int oxygen_spdif_hw_params(struct snd_pcm_substream *substream,
 	if (err < 0)
 		return err;
 
+	mutex_lock(&chip->mutex);
 	spin_lock_irq(&chip->reg_lock);
 	oxygen_clear_bits32(chip, OXYGEN_SPDIF_CONTROL,
 			    OXYGEN_SPDIF_OUT_ENABLE);
@@ -446,6 +447,7 @@ static int oxygen_spdif_hw_params(struct snd_pcm_substream *substream,
 			      OXYGEN_SPDIF_OUT_RATE_MASK);
 	oxygen_update_spdif_source(chip);
 	spin_unlock_irq(&chip->reg_lock);
+	mutex_unlock(&chip->mutex);
 	return 0;
 }
 
@@ -459,6 +461,7 @@ static int oxygen_multich_hw_params(struct snd_pcm_substream *substream,
 	if (err < 0)
 		return err;
 
+	mutex_lock(&chip->mutex);
 	spin_lock_irq(&chip->reg_lock);
 	oxygen_write8_masked(chip, OXYGEN_PLAY_CHANNELS,
 			     oxygen_play_channels(hw_params),
@@ -475,12 +478,11 @@ static int oxygen_multich_hw_params(struct snd_pcm_substream *substream,
 			      OXYGEN_I2S_FORMAT_MASK |
 			      OXYGEN_I2S_MCLK_MASK |
 			      OXYGEN_I2S_BITS_MASK);
-	oxygen_update_dac_routing(chip);
 	oxygen_update_spdif_source(chip);
 	spin_unlock_irq(&chip->reg_lock);
 
-	mutex_lock(&chip->mutex);
 	chip->model.set_dac_params(chip, hw_params);
+	oxygen_update_dac_routing(chip);
 	mutex_unlock(&chip->mutex);
 	return 0;
 }
diff --git a/sound/pci/oxygen/xonar_cs43xx.c b/sound/pci/oxygen/xonar_cs43xx.c
index 8fb5797577dd..0fa05ed6681d 100644
--- a/sound/pci/oxygen/xonar_cs43xx.c
+++ b/sound/pci/oxygen/xonar_cs43xx.c
@@ -67,6 +67,7 @@ struct xonar_cs43xx {
 	struct xonar_generic generic;
 	u8 cs4398_fm;
 	u8 cs4362a_fm;
+	u8 cs4362a_fm_c;
 };
 
 static void cs4398_write(struct oxygen *chip, u8 reg, u8 value)
@@ -128,7 +129,7 @@ static void cs43xx_init(struct oxygen *chip)
 	cs4362a_write(chip, 0x04, CS4362A_RMP_DN | CS4362A_DEM_NONE);
 	cs4362a_write(chip, 0x05, 0);
 	cs4362a_write(chip, 0x06, data->cs4362a_fm);
-	cs4362a_write(chip, 0x09, data->cs4362a_fm);
+	cs4362a_write(chip, 0x09, data->cs4362a_fm_c);
 	cs4362a_write(chip, 0x0c, data->cs4362a_fm);
 	update_cs43xx_volume(chip);
 	update_cs43xx_mute(chip);
@@ -146,6 +147,7 @@ static void xonar_d1_init(struct oxygen *chip)
 	data->cs4398_fm = CS4398_FM_SINGLE | CS4398_DEM_NONE | CS4398_DIF_LJUST;
 	data->cs4362a_fm = CS4362A_FM_SINGLE |
 		CS4362A_ATAPI_B_R | CS4362A_ATAPI_A_L;
+	data->cs4362a_fm_c = data->cs4362a_fm;
 
 	oxygen_write16(chip, OXYGEN_2WIRE_BUS_STATUS,
 		       OXYGEN_2WIRE_LENGTH_8 |
@@ -202,25 +204,41 @@ static void set_cs43xx_params(struct oxygen *chip,
 			      struct snd_pcm_hw_params *params)
 {
 	struct xonar_cs43xx *data = chip->model_data;
+	u8 cs4398_fm, cs4362a_fm;
 
-	data->cs4398_fm = CS4398_DEM_NONE | CS4398_DIF_LJUST;
-	data->cs4362a_fm = CS4362A_ATAPI_B_R | CS4362A_ATAPI_A_L;
 	if (params_rate(params) <= 50000) {
-		data->cs4398_fm |= CS4398_FM_SINGLE;
-		data->cs4362a_fm |= CS4362A_FM_SINGLE;
+		cs4398_fm = CS4398_FM_SINGLE;
+		cs4362a_fm = CS4362A_FM_SINGLE;
 	} else if (params_rate(params) <= 100000) {
-		data->cs4398_fm |= CS4398_FM_DOUBLE;
-		data->cs4362a_fm |= CS4362A_FM_DOUBLE;
+		cs4398_fm = CS4398_FM_DOUBLE;
+		cs4362a_fm = CS4362A_FM_DOUBLE;
 	} else {
-		data->cs4398_fm |= CS4398_FM_QUAD;
-		data->cs4362a_fm |= CS4362A_FM_QUAD;
+		cs4398_fm = CS4398_FM_QUAD;
+		cs4362a_fm = CS4362A_FM_QUAD;
 	}
+	data->cs4398_fm = CS4398_DEM_NONE | CS4398_DIF_LJUST | cs4398_fm;
+	data->cs4362a_fm =
+		(data->cs4362a_fm & ~CS4362A_FM_MASK) | cs4362a_fm;
+	data->cs4362a_fm_c =
+		(data->cs4362a_fm_c & ~CS4362A_FM_MASK) | cs4362a_fm;
 	cs4398_write(chip, 2, data->cs4398_fm);
 	cs4362a_write(chip, 0x06, data->cs4362a_fm);
-	cs4362a_write(chip, 0x09, data->cs4362a_fm);
+	cs4362a_write(chip, 0x09, data->cs4362a_fm_c);
 	cs4362a_write(chip, 0x0c, data->cs4362a_fm);
 }
 
+static void update_cs43xx_center_lfe_mix(struct oxygen *chip, bool mixed)
+{
+	struct xonar_cs43xx *data = chip->model_data;
+
+	data->cs4362a_fm_c &= ~CS4362A_ATAPI_MASK;
+	if (mixed)
+		data->cs4362a_fm_c |= CS4362A_ATAPI_B_LR | CS4362A_ATAPI_A_LR;
+	else
+		data->cs4362a_fm_c |= CS4362A_ATAPI_B_R | CS4362A_ATAPI_A_L;
+	cs4362a_write(chip, 0x09, data->cs4362a_fm_c);
+}
+
 static const struct snd_kcontrol_new front_panel_switch = {
 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 	.name = "Front Panel Switch",
@@ -269,6 +287,7 @@ static const struct oxygen_model model_xonar_d1 = {
 	.set_adc_params = xonar_set_cs53x1_params,
 	.update_dac_volume = update_cs43xx_volume,
 	.update_dac_mute = update_cs43xx_mute,
+	.update_center_lfe_mix = update_cs43xx_center_lfe_mix,
 	.ac97_switch = xonar_d1_line_mic_ac97_switch,
 	.dac_tlv = cs4362a_db_scale,
 	.model_data_size = sizeof(struct xonar_cs43xx),