--- zzzz-none-000/linux-3.10.107/sound/pci/oxygen/xonar_pcm179x.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/sound/pci/oxygen/xonar_pcm179x.c	2021-02-04 17:41:59.000000000 +0000
@@ -212,6 +212,9 @@
 #define GPIO_ST_MAGIC		0x0040
 #define GPIO_ST_HP		0x0080
 
+#define GPIO_XENSE_OUTPUT_ENABLE	(0x0001 | 0x0010 | 0x0020)
+#define GPIO_XENSE_SPEAKERS		0x0080
+
 #define I2C_DEVICE_PCM1796(i)	(0x98 + ((i) << 1))	/* 10011, ii, /W=0 */
 #define I2C_DEVICE_CS2000	0x9c			/* 100111, 0, /W=0 */
 
@@ -419,6 +422,7 @@
 
 	data->generic.output_enable_bit = GPIO_ST_OUTPUT_ENABLE;
 	data->dacs = chip->model.dac_channels_mixer / 2;
+	data->h6 = chip->model.dac_channels_mixer > 2;
 	data->hp_gain_offset = 2*-18;
 
 	pcm1796_init(chip);
@@ -499,6 +503,51 @@
 	xonar_st_init_common(chip);
 }
 
+static void xonar_xense_init(struct oxygen *chip)
+{
+	struct xonar_pcm179x *data = chip->model_data;
+
+	data->generic.ext_power_reg = OXYGEN_GPI_DATA;
+	data->generic.ext_power_int_reg = OXYGEN_GPI_INTERRUPT_MASK;
+	data->generic.ext_power_bit = GPI_EXT_POWER;
+	xonar_init_ext_power(chip);
+
+	data->generic.anti_pop_delay = 100;
+	data->has_cs2000 = 1;
+	data->cs2000_regs[CS2000_FUN_CFG_1] = CS2000_REF_CLK_DIV_1;
+
+	oxygen_write16(chip, OXYGEN_I2S_A_FORMAT,
+		OXYGEN_RATE_48000 |
+		OXYGEN_I2S_FORMAT_I2S |
+		OXYGEN_I2S_MCLK(MCLK_512) |
+		OXYGEN_I2S_BITS_16 |
+		OXYGEN_I2S_MASTER |
+		OXYGEN_I2S_BCLK_64);
+
+	xonar_st_init_i2c(chip);
+	cs2000_registers_init(chip);
+
+	data->generic.output_enable_bit = GPIO_XENSE_OUTPUT_ENABLE;
+	data->dacs = 1;
+	data->hp_gain_offset = 2*-18;
+
+	pcm1796_init(chip);
+
+	oxygen_set_bits16(chip, OXYGEN_GPIO_CONTROL,
+		GPIO_INPUT_ROUTE | GPIO_ST_HP_REAR |
+		GPIO_ST_MAGIC | GPIO_XENSE_SPEAKERS);
+	oxygen_clear_bits16(chip, OXYGEN_GPIO_DATA,
+		GPIO_INPUT_ROUTE | GPIO_ST_HP_REAR |
+		GPIO_XENSE_SPEAKERS);
+
+	xonar_init_cs53x1(chip);
+	xonar_enable_output(chip);
+
+	snd_component_add(chip->card, "PCM1796");
+	snd_component_add(chip->card, "CS5381");
+	snd_component_add(chip->card, "CS2000");
+}
+
 static void xonar_d2_cleanup(struct oxygen *chip)
 {
 	xonar_disable_output(chip);
@@ -795,11 +844,11 @@
 static int st_hp_volume_offset_info(struct snd_kcontrol *ctl,
 				    struct snd_ctl_elem_info *info)
 {
-	static const char *const names[3] = {
-		"< 64 ohms", "64-300 ohms", "300-600 ohms"
+	static const char *const names[4] = {
+		"< 32 ohms", "32-64 ohms", "64-300 ohms", "300-600 ohms"
 	};
 
-	return snd_ctl_enum_info(info, 1, 3, names);
+	return snd_ctl_enum_info(info, 1, 4, names);
 }
 
 static int st_hp_volume_offset_get(struct snd_kcontrol *ctl,
@@ -809,12 +858,14 @@
 	struct xonar_pcm179x *data = chip->model_data;
 
 	mutex_lock(&chip->mutex);
-	if (data->hp_gain_offset < 2*-6)
+	if (data->hp_gain_offset < 2*-12)
 		value->value.enumerated.item[0] = 0;
-	else if (data->hp_gain_offset < 0)
+	else if (data->hp_gain_offset < 2*-6)
 		value->value.enumerated.item[0] = 1;
-	else
+	else if (data->hp_gain_offset < 0)
 		value->value.enumerated.item[0] = 2;
+	else
+		value->value.enumerated.item[0] = 3;
 	mutex_unlock(&chip->mutex);
 	return 0;
 }
@@ -823,13 +874,13 @@
 static int st_hp_volume_offset_put(struct snd_kcontrol *ctl,
 				   struct snd_ctl_elem_value *value)
 {
-	static const s8 offsets[] = { 2*-18, 2*-6, 0 };
+	static const s8 offsets[] = { 2*-18, 2*-12, 2*-6, 0 };
 	struct oxygen *chip = ctl->private_data;
 	struct xonar_pcm179x *data = chip->model_data;
 	s8 offset;
 	int changed;
 
-	if (value->value.enumerated.item[0] > 2)
+	if (value->value.enumerated.item[0] > 3)
 		return -EINVAL;
 	offset = offsets[value->value.enumerated.item[0]];
 	mutex_lock(&chip->mutex);
@@ -859,6 +910,67 @@
 	},
 };
 
+static int xense_output_switch_get(struct snd_kcontrol *ctl,
+				   struct snd_ctl_elem_value *value)
+{
+	struct oxygen *chip = ctl->private_data;
+	u16 gpio;
+
+	gpio = oxygen_read16(chip, OXYGEN_GPIO_DATA);
+	if (gpio & GPIO_XENSE_SPEAKERS)
+		value->value.enumerated.item[0] = 0;
+	else if (!(gpio & GPIO_XENSE_SPEAKERS) && (gpio & GPIO_ST_HP_REAR))
+		value->value.enumerated.item[0] = 1;
+	else
+		value->value.enumerated.item[0] = 2;
+	return 0;
+}
+
+static int xense_output_switch_put(struct snd_kcontrol *ctl,
+				   struct snd_ctl_elem_value *value)
+{
+	struct oxygen *chip = ctl->private_data;
+	struct xonar_pcm179x *data = chip->model_data;
+	u16 gpio_old, gpio;
+
+	mutex_lock(&chip->mutex);
+	gpio_old = oxygen_read16(chip, OXYGEN_GPIO_DATA);
+	gpio = gpio_old;
+	switch (value->value.enumerated.item[0]) {
+	case 0:
+		gpio |= GPIO_XENSE_SPEAKERS | GPIO_ST_HP_REAR;
+		break;
+	case 1:
+		gpio = (gpio | GPIO_ST_HP_REAR) & ~GPIO_XENSE_SPEAKERS;
+		break;
+	case 2:
+		gpio &= ~(GPIO_XENSE_SPEAKERS | GPIO_ST_HP_REAR);
+		break;
+	}
+	oxygen_write16(chip, OXYGEN_GPIO_DATA, gpio);
+	data->hp_active = !(gpio & GPIO_XENSE_SPEAKERS);
+	update_pcm1796_volume(chip);
+	mutex_unlock(&chip->mutex);
+	return gpio != gpio_old;
+}
+
+static const struct snd_kcontrol_new xense_controls[] = {
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+		.name = "Analog Output",
+		.info = st_output_switch_info,
+		.get = xense_output_switch_get,
+		.put = xense_output_switch_put,
+	},
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+		.name = "Headphones Impedance Playback Enum",
+		.info = st_hp_volume_offset_info,
+		.get = st_hp_volume_offset_get,
+		.put = st_hp_volume_offset_put,
+	},
+};
+
 static void xonar_line_mic_ac97_switch(struct oxygen *chip,
 				       unsigned int reg, unsigned int mute)
 {
@@ -946,6 +1058,23 @@
 	return 0;
 }
 
+static int xonar_xense_mixer_init(struct oxygen *chip)
+{
+	unsigned int i;
+	int err;
+
+	for (i = 0; i < ARRAY_SIZE(xense_controls); ++i) {
+		err = snd_ctl_add(chip->card,
+		snd_ctl_new1(&xense_controls[i], chip));
+		if (err < 0)
+			return err;
+	}
+	err = add_pcm1796_controls(chip);
+	if (err < 0)
+		return err;
+	return 0;
+}
+
 static void dump_pcm1796_registers(struct oxygen *chip,
 				   struct snd_info_buffer *buffer)
 {
@@ -1140,12 +1269,29 @@
 		break;
 	case 0x85f4:
 		chip->model = model_xonar_st;
-		/* TODO: daughterboard support */
-		chip->model.shortname = "Xonar STX II";
+		oxygen_clear_bits16(chip, OXYGEN_GPIO_CONTROL, GPIO_DB_MASK);
+		switch (oxygen_read16(chip, OXYGEN_GPIO_DATA) & GPIO_DB_MASK) {
+		default:
+			chip->model.shortname = "Xonar STX II";
+			break;
+		case GPIO_DB_H6:
+			chip->model.shortname = "Xonar STX II+H6";
+			chip->model.dac_channels_pcm = 8;
+			chip->model.dac_channels_mixer = 8;
+			chip->model.dac_mclks = OXYGEN_MCLKS(256, 128, 128);
+			break;
+		}
 		chip->model.init = xonar_stx_init;
 		chip->model.resume = xonar_stx_resume;
 		chip->model.set_dac_params = set_pcm1796_params;
 		break;
+	case 0x8428:
+		chip->model = model_xonar_st;
+		chip->model.shortname = "Xonar Xense";
+		chip->model.chip = "AV100";
+		chip->model.init = xonar_xense_init;
+		chip->model.mixer_init = xonar_xense_mixer_init;
+		break;
 	default:
 		return -EINVAL;
 	}