diff --git a/drivers/hid/hid-steam.c b/drivers/hid/hid-steam.c
index 667b5b09f931..4f5c647f04dd 100644
--- a/drivers/hid/hid-steam.c
+++ b/drivers/hid/hid-steam.c
@@ -71,51 +71,207 @@ static LIST_HEAD(steam_devices);
 
 /*
  * Commands that can be sent in a feature report.
- * Thanks to Valve for some valuable hints.
+ * Thanks to Valve and SDL for the names.
  */
-#define STEAM_CMD_SET_MAPPINGS		0x80
-#define STEAM_CMD_CLEAR_MAPPINGS	0x81
-#define STEAM_CMD_GET_MAPPINGS		0x82
-#define STEAM_CMD_GET_ATTRIB		0x83
-#define STEAM_CMD_GET_ATTRIB_LABEL	0x84
-#define STEAM_CMD_DEFAULT_MAPPINGS	0x85
-#define STEAM_CMD_FACTORY_RESET		0x86
-#define STEAM_CMD_WRITE_REGISTER	0x87
-#define STEAM_CMD_CLEAR_REGISTER	0x88
-#define STEAM_CMD_READ_REGISTER		0x89
-#define STEAM_CMD_GET_REGISTER_LABEL	0x8a
-#define STEAM_CMD_GET_REGISTER_MAX	0x8b
-#define STEAM_CMD_GET_REGISTER_DEFAULT	0x8c
-#define STEAM_CMD_SET_MODE		0x8d
-#define STEAM_CMD_DEFAULT_MOUSE		0x8e
-#define STEAM_CMD_FORCEFEEDBAK		0x8f
-#define STEAM_CMD_REQUEST_COMM_STATUS	0xb4
-#define STEAM_CMD_GET_SERIAL		0xae
-#define STEAM_CMD_HAPTIC_RUMBLE		0xeb
-
-/* Some useful register ids */
-#define STEAM_REG_LPAD_MODE		0x07
-#define STEAM_REG_RPAD_MODE		0x08
-#define STEAM_REG_RPAD_MARGIN		0x18
-#define STEAM_REG_LED			0x2d
-#define STEAM_REG_GYRO_MODE		0x30
-#define STEAM_REG_LPAD_CLICK_PRESSURE	0x34
-#define STEAM_REG_RPAD_CLICK_PRESSURE	0x35
-#define STEAM_REG_WATCHDOG_ENABLE		0x47
-
-/* Raw event identifiers */
-#define STEAM_EV_INPUT_DATA		0x01
-#define STEAM_EV_CONNECT		0x03
-#define STEAM_EV_BATTERY		0x04
-#define STEAM_EV_DECK_INPUT_DATA	0x09
+enum {
+	ID_SET_DIGITAL_MAPPINGS		= 0x80,
+	ID_CLEAR_DIGITAL_MAPPINGS	= 0x81,
+	ID_GET_DIGITAL_MAPPINGS		= 0x82,
+	ID_GET_ATTRIBUTES_VALUES	= 0x83,
+	ID_GET_ATTRIBUTE_LABEL		= 0x84,
+	ID_SET_DEFAULT_DIGITAL_MAPPINGS	= 0x85,
+	ID_FACTORY_RESET		= 0x86,
+	ID_SET_SETTINGS_VALUES		= 0x87,
+	ID_CLEAR_SETTINGS_VALUES	= 0x88,
+	ID_GET_SETTINGS_VALUES		= 0x89,
+	ID_GET_SETTING_LABEL		= 0x8A,
+	ID_GET_SETTINGS_MAXS		= 0x8B,
+	ID_GET_SETTINGS_DEFAULTS	= 0x8C,
+	ID_SET_CONTROLLER_MODE		= 0x8D,
+	ID_LOAD_DEFAULT_SETTINGS	= 0x8E,
+	ID_TRIGGER_HAPTIC_PULSE		= 0x8F,
+	ID_TURN_OFF_CONTROLLER		= 0x9F,
+
+	ID_GET_DEVICE_INFO		= 0xA1,
+
+	ID_CALIBRATE_TRACKPADS		= 0xA7,
+	ID_RESERVED_0			= 0xA8,
+	ID_SET_SERIAL_NUMBER		= 0xA9,
+	ID_GET_TRACKPAD_CALIBRATION	= 0xAA,
+	ID_GET_TRACKPAD_FACTORY_CALIBRATION = 0xAB,
+	ID_GET_TRACKPAD_RAW_DATA	= 0xAC,
+	ID_ENABLE_PAIRING		= 0xAD,
+	ID_GET_STRING_ATTRIBUTE		= 0xAE,
+	ID_RADIO_ERASE_RECORDS		= 0xAF,
+	ID_RADIO_WRITE_RECORD		= 0xB0,
+	ID_SET_DONGLE_SETTING		= 0xB1,
+	ID_DONGLE_DISCONNECT_DEVICE	= 0xB2,
+	ID_DONGLE_COMMIT_DEVICE		= 0xB3,
+	ID_DONGLE_GET_WIRELESS_STATE	= 0xB4,
+	ID_CALIBRATE_GYRO		= 0xB5,
+	ID_PLAY_AUDIO			= 0xB6,
+	ID_AUDIO_UPDATE_START		= 0xB7,
+	ID_AUDIO_UPDATE_DATA		= 0xB8,
+	ID_AUDIO_UPDATE_COMPLETE	= 0xB9,
+	ID_GET_CHIPID			= 0xBA,
+
+	ID_CALIBRATE_JOYSTICK		= 0xBF,
+	ID_CALIBRATE_ANALOG_TRIGGERS	= 0xC0,
+	ID_SET_AUDIO_MAPPING		= 0xC1,
+	ID_CHECK_GYRO_FW_LOAD		= 0xC2,
+	ID_CALIBRATE_ANALOG		= 0xC3,
+	ID_DONGLE_GET_CONNECTED_SLOTS	= 0xC4,
+
+	ID_RESET_IMU			= 0xCE,
+
+	ID_TRIGGER_HAPTIC_CMD		= 0xEA,
+	ID_TRIGGER_RUMBLE_CMD		= 0xEB,
+};
+
+/* Settings IDs */
+enum {
+	/* 0 */
+	SETTING_MOUSE_SENSITIVITY,
+	SETTING_MOUSE_ACCELERATION,
+	SETTING_TRACKBALL_ROTATION_ANGLE,
+	SETTING_HAPTIC_INTENSITY_UNUSED,
+	SETTING_LEFT_GAMEPAD_STICK_ENABLED,
+	SETTING_RIGHT_GAMEPAD_STICK_ENABLED,
+	SETTING_USB_DEBUG_MODE,
+	SETTING_LEFT_TRACKPAD_MODE,
+	SETTING_RIGHT_TRACKPAD_MODE,
+	SETTING_MOUSE_POINTER_ENABLED,
+
+	/* 10 */
+	SETTING_DPAD_DEADZONE,
+	SETTING_MINIMUM_MOMENTUM_VEL,
+	SETTING_MOMENTUM_DECAY_AMMOUNT,
+	SETTING_TRACKPAD_RELATIVE_MODE_TICKS_PER_PIXEL,
+	SETTING_HAPTIC_INCREMENT,
+	SETTING_DPAD_ANGLE_SIN,
+	SETTING_DPAD_ANGLE_COS,
+	SETTING_MOMENTUM_VERTICAL_DIVISOR,
+	SETTING_MOMENTUM_MAXIMUM_VELOCITY,
+	SETTING_TRACKPAD_Z_ON,
+
+	/* 20 */
+	SETTING_TRACKPAD_Z_OFF,
+	SETTING_SENSITIVY_SCALE_AMMOUNT,
+	SETTING_LEFT_TRACKPAD_SECONDARY_MODE,
+	SETTING_RIGHT_TRACKPAD_SECONDARY_MODE,
+	SETTING_SMOOTH_ABSOLUTE_MOUSE,
+	SETTING_STEAMBUTTON_POWEROFF_TIME,
+	SETTING_UNUSED_1,
+	SETTING_TRACKPAD_OUTER_RADIUS,
+	SETTING_TRACKPAD_Z_ON_LEFT,
+	SETTING_TRACKPAD_Z_OFF_LEFT,
+
+	/* 30 */
+	SETTING_TRACKPAD_OUTER_SPIN_VEL,
+	SETTING_TRACKPAD_OUTER_SPIN_RADIUS,
+	SETTING_TRACKPAD_OUTER_SPIN_HORIZONTAL_ONLY,
+	SETTING_TRACKPAD_RELATIVE_MODE_DEADZONE,
+	SETTING_TRACKPAD_RELATIVE_MODE_MAX_VEL,
+	SETTING_TRACKPAD_RELATIVE_MODE_INVERT_Y,
+	SETTING_TRACKPAD_DOUBLE_TAP_BEEP_ENABLED,
+	SETTING_TRACKPAD_DOUBLE_TAP_BEEP_PERIOD,
+	SETTING_TRACKPAD_DOUBLE_TAP_BEEP_COUNT,
+	SETTING_TRACKPAD_OUTER_RADIUS_RELEASE_ON_TRANSITION,
+
+	/* 40 */
+	SETTING_RADIAL_MODE_ANGLE,
+	SETTING_HAPTIC_INTENSITY_MOUSE_MODE,
+	SETTING_LEFT_DPAD_REQUIRES_CLICK,
+	SETTING_RIGHT_DPAD_REQUIRES_CLICK,
+	SETTING_LED_BASELINE_BRIGHTNESS,
+	SETTING_LED_USER_BRIGHTNESS,
+	SETTING_ENABLE_RAW_JOYSTICK,
+	SETTING_ENABLE_FAST_SCAN,
+	SETTING_IMU_MODE,
+	SETTING_WIRELESS_PACKET_VERSION,
+
+	/* 50 */
+	SETTING_SLEEP_INACTIVITY_TIMEOUT,
+	SETTING_TRACKPAD_NOISE_THRESHOLD,
+	SETTING_LEFT_TRACKPAD_CLICK_PRESSURE,
+	SETTING_RIGHT_TRACKPAD_CLICK_PRESSURE,
+	SETTING_LEFT_BUMPER_CLICK_PRESSURE,
+	SETTING_RIGHT_BUMPER_CLICK_PRESSURE,
+	SETTING_LEFT_GRIP_CLICK_PRESSURE,
+	SETTING_RIGHT_GRIP_CLICK_PRESSURE,
+	SETTING_LEFT_GRIP2_CLICK_PRESSURE,
+	SETTING_RIGHT_GRIP2_CLICK_PRESSURE,
+
+	/* 60 */
+	SETTING_PRESSURE_MODE,
+	SETTING_CONTROLLER_TEST_MODE,
+	SETTING_TRIGGER_MODE,
+	SETTING_TRACKPAD_Z_THRESHOLD,
+	SETTING_FRAME_RATE,
+	SETTING_TRACKPAD_FILT_CTRL,
+	SETTING_TRACKPAD_CLIP,
+	SETTING_DEBUG_OUTPUT_SELECT,
+	SETTING_TRIGGER_THRESHOLD_PERCENT,
+	SETTING_TRACKPAD_FREQUENCY_HOPPING,
+
+	/* 70 */
+	SETTING_HAPTICS_ENABLED,
+	SETTING_STEAM_WATCHDOG_ENABLE,
+	SETTING_TIMP_TOUCH_THRESHOLD_ON,
+	SETTING_TIMP_TOUCH_THRESHOLD_OFF,
+	SETTING_FREQ_HOPPING,
+	SETTING_TEST_CONTROL,
+	SETTING_HAPTIC_MASTER_GAIN_DB,
+	SETTING_THUMB_TOUCH_THRESH,
+	SETTING_DEVICE_POWER_STATUS,
+	SETTING_HAPTIC_INTENSITY,
+
+	/* 80 */
+	SETTING_STABILIZER_ENABLED,
+	SETTING_TIMP_MODE_MTE,
+};
+
+/* Input report identifiers */
+enum
+{
+	ID_CONTROLLER_STATE = 1,
+	ID_CONTROLLER_DEBUG = 2,
+	ID_CONTROLLER_WIRELESS = 3,
+	ID_CONTROLLER_STATUS = 4,
+	ID_CONTROLLER_DEBUG2 = 5,
+	ID_CONTROLLER_SECONDARY_STATE = 6,
+	ID_CONTROLLER_BLE_STATE = 7,
+	ID_CONTROLLER_DECK_STATE = 9
+};
+
+/* String attribute idenitifiers */
+enum {
+	ATTRIB_STR_BOARD_SERIAL,
+	ATTRIB_STR_UNIT_SERIAL,
+};
 
 /* Values for GYRO_MODE (bitmask) */
-#define STEAM_GYRO_MODE_OFF		0x0000
-#define STEAM_GYRO_MODE_STEERING	0x0001
-#define STEAM_GYRO_MODE_TILT		0x0002
-#define STEAM_GYRO_MODE_SEND_ORIENTATION	0x0004
-#define STEAM_GYRO_MODE_SEND_RAW_ACCEL		0x0008
-#define STEAM_GYRO_MODE_SEND_RAW_GYRO		0x0010
+enum {
+	SETTING_GYRO_MODE_OFF			= 0,
+	SETTING_GYRO_MODE_STEERING		= BIT(0),
+	SETTING_GYRO_MODE_TILT			= BIT(1),
+	SETTING_GYRO_MODE_SEND_ORIENTATION	= BIT(2),
+	SETTING_GYRO_MODE_SEND_RAW_ACCEL	= BIT(3),
+	SETTING_GYRO_MODE_SEND_RAW_GYRO		= BIT(4),
+};
+
+/* Trackpad modes */
+enum {
+	TRACKPAD_ABSOLUTE_MOUSE,
+	TRACKPAD_RELATIVE_MOUSE,
+	TRACKPAD_DPAD_FOUR_WAY_DISCRETE,
+	TRACKPAD_DPAD_FOUR_WAY_OVERLAP,
+	TRACKPAD_DPAD_EIGHT_WAY,
+	TRACKPAD_RADIAL_MODE,
+	TRACKPAD_ABSOLUTE_DPAD,
+	TRACKPAD_NONE,
+	TRACKPAD_GESTURE_KEYBOARD,
+};
 
 /* Other random constants */
 #define STEAM_SERIAL_LEN 10
@@ -226,13 +382,13 @@ static inline int steam_send_report_byte(struct steam_device *steam, u8 cmd)
 	return steam_send_report(steam, &cmd, 1);
 }
 
-static int steam_write_registers(struct steam_device *steam,
+static int steam_write_settings(struct steam_device *steam,
 		/* u8 reg, u16 val */...)
 {
 	/* Send: 0x87 len (reg valLo valHi)* */
 	u8 reg;
 	u16 val;
-	u8 cmd[64] = {STEAM_CMD_WRITE_REGISTER, 0x00};
+	u8 cmd[64] = {ID_SET_SETTINGS_VALUES, 0x00};
 	int ret;
 	va_list args;
 
@@ -268,7 +424,7 @@ static int steam_get_serial(struct steam_device *steam)
 	 * Recv: 0xae 0x15 0x01 serialnumber (10 chars)
 	 */
 	int ret = 0;
-	u8 cmd[] = {STEAM_CMD_GET_SERIAL, 0x15, 0x01};
+	u8 cmd[] = {ID_GET_STRING_ATTRIBUTE, 0x15, ATTRIB_STR_UNIT_SERIAL};
 	u8 reply[3 + STEAM_SERIAL_LEN + 1];
 
 	mutex_lock(&steam->report_mutex);
@@ -278,7 +434,7 @@ static int steam_get_serial(struct steam_device *steam)
 	ret = steam_recv_report(steam, reply, sizeof(reply));
 	if (ret < 0)
 		goto out;
-	if (reply[0] != 0xae || reply[1] != 0x15 || reply[2] != 0x01) {
+	if (reply[0] != ID_GET_STRING_ATTRIBUTE || reply[1] != 0x15 || reply[2] != ATTRIB_STR_UNIT_SERIAL) {
 		ret = -EIO;
 		goto out;
 	}
@@ -298,7 +454,7 @@ static inline int steam_request_conn_status(struct steam_device *steam)
 {
 	int ret;
 	mutex_lock(&steam->report_mutex);
-	ret = steam_send_report_byte(steam, STEAM_CMD_REQUEST_COMM_STATUS);
+	ret = steam_send_report_byte(steam, ID_DONGLE_GET_WIRELESS_STATE);
 	mutex_unlock(&steam->report_mutex);
 	return ret;
 }
@@ -308,7 +464,7 @@ static inline int steam_haptic_rumble(struct steam_device *steam,
 				u8 left_gain, u8 right_gain)
 {
 	int ret;
-	u8 report[11] = {STEAM_CMD_HAPTIC_RUMBLE, 9};
+	u8 report[11] = {ID_TRIGGER_RUMBLE_CMD, 9};
 
 	report[3] = intensity & 0xFF;
 	report[4] = intensity >> 8;
@@ -351,28 +507,28 @@ static void steam_set_lizard_mode(struct steam_device *steam, bool enable)
 	if (enable) {
 		mutex_lock(&steam->report_mutex);
 		/* enable esc, enter, cursors */
-		steam_send_report_byte(steam, STEAM_CMD_DEFAULT_MAPPINGS);
-		/* enable mouse */
-		steam_send_report_byte(steam, STEAM_CMD_DEFAULT_MOUSE);
+		steam_send_report_byte(steam, ID_SET_DEFAULT_DIGITAL_MAPPINGS);
+		/* reset settings */
+		steam_send_report_byte(steam, ID_LOAD_DEFAULT_SETTINGS);
 		mutex_unlock(&steam->report_mutex);
 	} else {
 		mutex_lock(&steam->report_mutex);
 		/* disable esc, enter, cursor */
-		steam_send_report_byte(steam, STEAM_CMD_CLEAR_MAPPINGS);
+		steam_send_report_byte(steam, ID_CLEAR_DIGITAL_MAPPINGS);
 
 		if (steam->quirks & STEAM_QUIRK_DECK) {
-			steam_write_registers(steam,
-				STEAM_REG_LPAD_MODE, 0x07, /* disable mouse */
-				STEAM_REG_RPAD_MODE, 0x07, /* disable mouse */
-				STEAM_REG_LPAD_CLICK_PRESSURE, 0xFFFF, /* disable clicky pad */
-				STEAM_REG_RPAD_CLICK_PRESSURE, 0xFFFF, /* disable clicky pad */
-				STEAM_REG_WATCHDOG_ENABLE, 0, /* disable watchdog that tests if Steam is active */
+			steam_write_settings(steam,
+				SETTING_LEFT_TRACKPAD_MODE, TRACKPAD_NONE, /* disable mouse */
+				SETTING_RIGHT_TRACKPAD_MODE, TRACKPAD_NONE, /* disable mouse */
+				SETTING_LEFT_TRACKPAD_CLICK_PRESSURE, 0xFFFF, /* disable haptic click */
+				SETTING_RIGHT_TRACKPAD_CLICK_PRESSURE, 0xFFFF, /* disable haptic click */
+				SETTING_STEAM_WATCHDOG_ENABLE, 0, /* disable watchdog that tests if Steam is active */
 				0);
 			mutex_unlock(&steam->report_mutex);
 		} else {
-			steam_write_registers(steam,
-				STEAM_REG_LPAD_MODE, 0x07, /* disable mouse */
-				STEAM_REG_RPAD_MODE, 0x07, /* disable mouse */
+			steam_write_settings(steam,
+				SETTING_LEFT_TRACKPAD_MODE, TRACKPAD_NONE, /* disable mouse */
+				SETTING_RIGHT_TRACKPAD_MODE, TRACKPAD_NONE, /* disable mouse */
 				0);
 			mutex_unlock(&steam->report_mutex);
 		}
@@ -1362,7 +1518,7 @@ static int steam_raw_event(struct hid_device *hdev,
 		return 0;
 
 	switch (data[2]) {
-	case STEAM_EV_INPUT_DATA:
+	case ID_CONTROLLER_STATE:
 		if (steam->client_opened)
 			return 0;
 		rcu_read_lock();
@@ -1371,7 +1527,7 @@ static int steam_raw_event(struct hid_device *hdev,
 			steam_do_input_event(steam, input, data);
 		rcu_read_unlock();
 		break;
-	case STEAM_EV_DECK_INPUT_DATA:
+	case ID_CONTROLLER_DECK_STATE:
 		if (steam->client_opened)
 			return 0;
 		rcu_read_lock();
@@ -1380,7 +1536,7 @@ static int steam_raw_event(struct hid_device *hdev,
 			steam_do_deck_input_event(steam, input, data);
 		rcu_read_unlock();
 		break;
-	case STEAM_EV_CONNECT:
+	case ID_CONTROLLER_WIRELESS:
 		/*
 		 * The payload of this event is a single byte:
 		 *  0x01: disconnected.
@@ -1395,7 +1551,7 @@ static int steam_raw_event(struct hid_device *hdev,
 			break;
 		}
 		break;
-	case STEAM_EV_BATTERY:
+	case ID_CONTROLLER_STATUS:
 		if (steam->quirks & STEAM_QUIRK_WIRELESS) {
 			rcu_read_lock();
 			battery = rcu_dereference(steam->battery);
