aboutsummaryrefslogtreecommitdiff
path: root/src/modules/mavlink/orb_listener.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/modules/mavlink/orb_listener.c')
-rw-r--r--src/modules/mavlink/orb_listener.c778
1 files changed, 778 insertions, 0 deletions
diff --git a/src/modules/mavlink/orb_listener.c b/src/modules/mavlink/orb_listener.c
new file mode 100644
index 000000000..d84406e7a
--- /dev/null
+++ b/src/modules/mavlink/orb_listener.c
@@ -0,0 +1,778 @@
+/****************************************************************************
+ *
+ * Copyright (C) 2012 PX4 Development Team. All rights reserved.
+ * Author: Lorenz Meier <lm@inf.ethz.ch>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * 3. Neither the name PX4 nor the names of its contributors may be
+ * used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/**
+ * @file orb_listener.c
+ * Monitors ORB topics and sends update messages as appropriate.
+ *
+ * @author Lorenz Meier <lm@inf.ethz.ch>
+ */
+
+// XXX trim includes
+#include <nuttx/config.h>
+#include <stdio.h>
+#include <math.h>
+#include <stdbool.h>
+#include <fcntl.h>
+#include <string.h>
+#include "mavlink_bridge_header.h"
+#include <v1.0/common/mavlink.h>
+#include <drivers/drv_hrt.h>
+#include <time.h>
+#include <float.h>
+#include <unistd.h>
+#include <sys/prctl.h>
+#include <stdlib.h>
+#include <poll.h>
+
+#include <mavlink/mavlink_log.h>
+
+#include "waypoints.h"
+#include "orb_topics.h"
+#include "missionlib.h"
+#include "mavlink_hil.h"
+#include "util.h"
+
+extern bool gcs_link;
+
+struct vehicle_global_position_s global_pos;
+struct vehicle_local_position_s local_pos;
+struct vehicle_status_s v_status;
+struct rc_channels_s rc;
+struct rc_input_values rc_raw;
+struct actuator_armed_s armed;
+
+struct mavlink_subscriptions mavlink_subs;
+
+static int status_sub;
+static int rc_sub;
+
+static unsigned int sensors_raw_counter;
+static unsigned int attitude_counter;
+static unsigned int gps_counter;
+
+/*
+ * Last sensor loop time
+ * some outputs are better timestamped
+ * with this "global" reference.
+ */
+static uint64_t last_sensor_timestamp;
+
+static void *uorb_receive_thread(void *arg);
+
+struct listener {
+ void (*callback)(const struct listener *l);
+ int *subp;
+ uintptr_t arg;
+};
+
+static void l_sensor_combined(const struct listener *l);
+static void l_vehicle_attitude(const struct listener *l);
+static void l_vehicle_gps_position(const struct listener *l);
+static void l_vehicle_status(const struct listener *l);
+static void l_rc_channels(const struct listener *l);
+static void l_input_rc(const struct listener *l);
+static void l_global_position(const struct listener *l);
+static void l_local_position(const struct listener *l);
+static void l_global_position_setpoint(const struct listener *l);
+static void l_local_position_setpoint(const struct listener *l);
+static void l_attitude_setpoint(const struct listener *l);
+static void l_actuator_outputs(const struct listener *l);
+static void l_actuator_armed(const struct listener *l);
+static void l_manual_control_setpoint(const struct listener *l);
+static void l_vehicle_attitude_controls(const struct listener *l);
+static void l_debug_key_value(const struct listener *l);
+static void l_optical_flow(const struct listener *l);
+static void l_vehicle_rates_setpoint(const struct listener *l);
+static void l_home(const struct listener *l);
+
+static const struct listener listeners[] = {
+ {l_sensor_combined, &mavlink_subs.sensor_sub, 0},
+ {l_vehicle_attitude, &mavlink_subs.att_sub, 0},
+ {l_vehicle_gps_position, &mavlink_subs.gps_sub, 0},
+ {l_vehicle_status, &status_sub, 0},
+ {l_rc_channels, &rc_sub, 0},
+ {l_input_rc, &mavlink_subs.input_rc_sub, 0},
+ {l_global_position, &mavlink_subs.global_pos_sub, 0},
+ {l_local_position, &mavlink_subs.local_pos_sub, 0},
+ {l_global_position_setpoint, &mavlink_subs.spg_sub, 0},
+ {l_local_position_setpoint, &mavlink_subs.spl_sub, 0},
+ {l_attitude_setpoint, &mavlink_subs.spa_sub, 0},
+ {l_actuator_outputs, &mavlink_subs.act_0_sub, 0},
+ {l_actuator_outputs, &mavlink_subs.act_1_sub, 1},
+ {l_actuator_outputs, &mavlink_subs.act_2_sub, 2},
+ {l_actuator_outputs, &mavlink_subs.act_3_sub, 3},
+ {l_actuator_armed, &mavlink_subs.armed_sub, 0},
+ {l_manual_control_setpoint, &mavlink_subs.man_control_sp_sub, 0},
+ {l_vehicle_attitude_controls, &mavlink_subs.actuators_sub, 0},
+ {l_debug_key_value, &mavlink_subs.debug_key_value, 0},
+ {l_optical_flow, &mavlink_subs.optical_flow, 0},
+ {l_vehicle_rates_setpoint, &mavlink_subs.rates_setpoint_sub, 0},
+ {l_home, &mavlink_subs.home_sub, 0},
+};
+
+static const unsigned n_listeners = sizeof(listeners) / sizeof(listeners[0]);
+
+void
+l_sensor_combined(const struct listener *l)
+{
+ struct sensor_combined_s raw;
+
+ /* copy sensors raw data into local buffer */
+ orb_copy(ORB_ID(sensor_combined), mavlink_subs.sensor_sub, &raw);
+
+ last_sensor_timestamp = raw.timestamp;
+
+ /* mark individual fields as changed */
+ uint16_t fields_updated = 0;
+ static unsigned accel_counter = 0;
+ static unsigned gyro_counter = 0;
+ static unsigned mag_counter = 0;
+ static unsigned baro_counter = 0;
+
+ if (accel_counter != raw.accelerometer_counter) {
+ /* mark first three dimensions as changed */
+ fields_updated |= (1 << 0) | (1 << 1) | (1 << 2);
+ accel_counter = raw.accelerometer_counter;
+ }
+
+ if (gyro_counter != raw.gyro_counter) {
+ /* mark second group dimensions as changed */
+ fields_updated |= (1 << 3) | (1 << 4) | (1 << 5);
+ gyro_counter = raw.gyro_counter;
+ }
+
+ if (mag_counter != raw.magnetometer_counter) {
+ /* mark third group dimensions as changed */
+ fields_updated |= (1 << 6) | (1 << 7) | (1 << 8);
+ mag_counter = raw.magnetometer_counter;
+ }
+
+ if (baro_counter != raw.baro_counter) {
+ /* mark last group dimensions as changed */
+ fields_updated |= (1 << 9) | (1 << 11) | (1 << 12);
+ baro_counter = raw.baro_counter;
+ }
+
+ if (gcs_link)
+ mavlink_msg_highres_imu_send(MAVLINK_COMM_0, last_sensor_timestamp,
+ raw.accelerometer_m_s2[0], raw.accelerometer_m_s2[1],
+ raw.accelerometer_m_s2[2], raw.gyro_rad_s[0],
+ raw.gyro_rad_s[1], raw.gyro_rad_s[2],
+ raw.magnetometer_ga[0],
+ raw.magnetometer_ga[1], raw.magnetometer_ga[2],
+ raw.baro_pres_mbar, 0 /* no diff pressure yet */,
+ raw.baro_alt_meter, raw.baro_temp_celcius,
+ fields_updated);
+
+ sensors_raw_counter++;
+}
+
+void
+l_vehicle_attitude(const struct listener *l)
+{
+ struct vehicle_attitude_s att;
+
+
+ /* copy attitude data into local buffer */
+ orb_copy(ORB_ID(vehicle_attitude), mavlink_subs.att_sub, &att);
+
+ if (gcs_link)
+ /* send sensor values */
+ mavlink_msg_attitude_send(MAVLINK_COMM_0,
+ last_sensor_timestamp / 1000,
+ att.roll,
+ att.pitch,
+ att.yaw,
+ att.rollspeed,
+ att.pitchspeed,
+ att.yawspeed);
+
+ attitude_counter++;
+}
+
+void
+l_vehicle_gps_position(const struct listener *l)
+{
+ struct vehicle_gps_position_s gps;
+
+ /* copy gps data into local buffer */
+ orb_copy(ORB_ID(vehicle_gps_position), mavlink_subs.gps_sub, &gps);
+
+ /* GPS COG is 0..2PI in degrees * 1e2 */
+ float cog_deg = gps.cog_rad;
+ if (cog_deg > M_PI_F)
+ cog_deg -= 2.0f * M_PI_F;
+ cog_deg *= M_RAD_TO_DEG_F;
+
+
+ /* GPS position */
+ mavlink_msg_gps_raw_int_send(MAVLINK_COMM_0,
+ gps.timestamp_position,
+ gps.fix_type,
+ gps.lat,
+ gps.lon,
+ gps.alt,
+ gps.eph_m * 1e2f, // from m to cm
+ gps.epv_m * 1e2f, // from m to cm
+ gps.vel_m_s * 1e2f, // from m/s to cm/s
+ cog_deg * 1e2f, // from rad to deg * 100
+ gps.satellites_visible);
+
+ /* update SAT info every 10 seconds */
+ if (gps.satellite_info_available && (gps_counter % 50 == 0)) {
+ mavlink_msg_gps_status_send(MAVLINK_COMM_0,
+ gps.satellites_visible,
+ gps.satellite_prn,
+ gps.satellite_used,
+ gps.satellite_elevation,
+ gps.satellite_azimuth,
+ gps.satellite_snr);
+ }
+
+ gps_counter++;
+}
+
+void
+l_vehicle_status(const struct listener *l)
+{
+ /* immediately communicate state changes back to user */
+ orb_copy(ORB_ID(vehicle_status), status_sub, &v_status);
+ orb_copy(ORB_ID(actuator_armed), mavlink_subs.armed_sub, &armed);
+
+ /* enable or disable HIL */
+ set_hil_on_off(v_status.flag_hil_enabled);
+
+ /* translate the current syste state to mavlink state and mode */
+ uint8_t mavlink_state = 0;
+ uint8_t mavlink_mode = 0;
+ get_mavlink_mode_and_state(&mavlink_state, &mavlink_mode);
+
+ /* send heartbeat */
+ mavlink_msg_heartbeat_send(chan,
+ mavlink_system.type,
+ MAV_AUTOPILOT_PX4,
+ mavlink_mode,
+ v_status.navigation_state,
+ mavlink_state);
+}
+
+void
+l_rc_channels(const struct listener *l)
+{
+ /* copy rc channels into local buffer */
+ orb_copy(ORB_ID(rc_channels), rc_sub, &rc);
+ // XXX Add RC channels scaled message here
+}
+
+void
+l_input_rc(const struct listener *l)
+{
+ /* copy rc channels into local buffer */
+ orb_copy(ORB_ID(input_rc), mavlink_subs.input_rc_sub, &rc_raw);
+
+ if (gcs_link)
+ /* Channels are sent in MAVLink main loop at a fixed interval */
+ mavlink_msg_rc_channels_raw_send(chan,
+ rc_raw.timestamp / 1000,
+ 0,
+ (rc_raw.channel_count > 0) ? rc_raw.values[0] : UINT16_MAX,
+ (rc_raw.channel_count > 1) ? rc_raw.values[1] : UINT16_MAX,
+ (rc_raw.channel_count > 2) ? rc_raw.values[2] : UINT16_MAX,
+ (rc_raw.channel_count > 3) ? rc_raw.values[3] : UINT16_MAX,
+ (rc_raw.channel_count > 4) ? rc_raw.values[4] : UINT16_MAX,
+ (rc_raw.channel_count > 5) ? rc_raw.values[5] : UINT16_MAX,
+ (rc_raw.channel_count > 6) ? rc_raw.values[6] : UINT16_MAX,
+ (rc_raw.channel_count > 7) ? rc_raw.values[7] : UINT16_MAX,
+ 255);
+}
+
+void
+l_global_position(const struct listener *l)
+{
+ /* copy global position data into local buffer */
+ orb_copy(ORB_ID(vehicle_global_position), mavlink_subs.global_pos_sub, &global_pos);
+
+ uint64_t timestamp = global_pos.timestamp;
+ int32_t lat = global_pos.lat;
+ int32_t lon = global_pos.lon;
+ int32_t alt = (int32_t)(global_pos.alt * 1000);
+ int32_t relative_alt = (int32_t)(global_pos.relative_alt * 1000.0f);
+ int16_t vx = (int16_t)(global_pos.vx * 100.0f);
+ int16_t vy = (int16_t)(global_pos.vy * 100.0f);
+ int16_t vz = (int16_t)(global_pos.vz * 100.0f);
+
+ /* heading in degrees * 10, from 0 to 36.000) */
+ uint16_t hdg = (global_pos.hdg / M_PI_F) * (180.0f * 10.0f) + (180.0f * 10.0f);
+
+ mavlink_msg_global_position_int_send(MAVLINK_COMM_0,
+ timestamp / 1000,
+ lat,
+ lon,
+ alt,
+ relative_alt,
+ vx,
+ vy,
+ vz,
+ hdg);
+}
+
+void
+l_local_position(const struct listener *l)
+{
+ /* copy local position data into local buffer */
+ orb_copy(ORB_ID(vehicle_local_position), mavlink_subs.local_pos_sub, &local_pos);
+
+ if (gcs_link)
+ mavlink_msg_local_position_ned_send(MAVLINK_COMM_0,
+ local_pos.timestamp / 1000,
+ local_pos.x,
+ local_pos.y,
+ local_pos.z,
+ local_pos.vx,
+ local_pos.vy,
+ local_pos.vz);
+}
+
+void
+l_global_position_setpoint(const struct listener *l)
+{
+ struct vehicle_global_position_setpoint_s global_sp;
+
+ /* copy local position data into local buffer */
+ orb_copy(ORB_ID(vehicle_global_position_setpoint), mavlink_subs.spg_sub, &global_sp);
+
+ uint8_t coordinate_frame = MAV_FRAME_GLOBAL;
+
+ if (global_sp.altitude_is_relative)
+ coordinate_frame = MAV_FRAME_GLOBAL_RELATIVE_ALT;
+
+ if (gcs_link)
+ mavlink_msg_global_position_setpoint_int_send(MAVLINK_COMM_0,
+ coordinate_frame,
+ global_sp.lat,
+ global_sp.lon,
+ global_sp.altitude,
+ global_sp.yaw);
+}
+
+void
+l_local_position_setpoint(const struct listener *l)
+{
+ struct vehicle_local_position_setpoint_s local_sp;
+
+ /* copy local position data into local buffer */
+ orb_copy(ORB_ID(vehicle_local_position_setpoint), mavlink_subs.spl_sub, &local_sp);
+
+ if (gcs_link)
+ mavlink_msg_local_position_setpoint_send(MAVLINK_COMM_0,
+ MAV_FRAME_LOCAL_NED,
+ local_sp.x,
+ local_sp.y,
+ local_sp.z,
+ local_sp.yaw);
+}
+
+void
+l_attitude_setpoint(const struct listener *l)
+{
+ struct vehicle_attitude_setpoint_s att_sp;
+
+ /* copy local position data into local buffer */
+ orb_copy(ORB_ID(vehicle_attitude_setpoint), mavlink_subs.spa_sub, &att_sp);
+
+ if (gcs_link)
+ mavlink_msg_roll_pitch_yaw_thrust_setpoint_send(MAVLINK_COMM_0,
+ att_sp.timestamp / 1000,
+ att_sp.roll_body,
+ att_sp.pitch_body,
+ att_sp.yaw_body,
+ att_sp.thrust);
+}
+
+void
+l_vehicle_rates_setpoint(const struct listener *l)
+{
+ struct vehicle_rates_setpoint_s rates_sp;
+
+ /* copy local position data into local buffer */
+ orb_copy(ORB_ID(vehicle_rates_setpoint), mavlink_subs.rates_setpoint_sub, &rates_sp);
+
+ if (gcs_link)
+ mavlink_msg_roll_pitch_yaw_rates_thrust_setpoint_send(MAVLINK_COMM_0,
+ rates_sp.timestamp / 1000,
+ rates_sp.roll,
+ rates_sp.pitch,
+ rates_sp.yaw,
+ rates_sp.thrust);
+}
+
+void
+l_actuator_outputs(const struct listener *l)
+{
+ struct actuator_outputs_s act_outputs;
+
+ orb_id_t ids[] = {
+ ORB_ID(actuator_outputs_0),
+ ORB_ID(actuator_outputs_1),
+ ORB_ID(actuator_outputs_2),
+ ORB_ID(actuator_outputs_3)
+ };
+
+ /* copy actuator data into local buffer */
+ orb_copy(ids[l->arg], *l->subp, &act_outputs);
+
+ if (gcs_link) {
+ mavlink_msg_servo_output_raw_send(MAVLINK_COMM_0, last_sensor_timestamp / 1000,
+ l->arg /* port number */,
+ act_outputs.output[0],
+ act_outputs.output[1],
+ act_outputs.output[2],
+ act_outputs.output[3],
+ act_outputs.output[4],
+ act_outputs.output[5],
+ act_outputs.output[6],
+ act_outputs.output[7]);
+
+ /* only send in HIL mode */
+ if (mavlink_hil_enabled && armed.armed) {
+
+ /* translate the current syste state to mavlink state and mode */
+ uint8_t mavlink_state = 0;
+ uint8_t mavlink_mode = 0;
+ get_mavlink_mode_and_state(&mavlink_state, &mavlink_mode);
+
+ /* HIL message as per MAVLink spec */
+
+ /* scale / assign outputs depending on system type */
+
+ if (mavlink_system.type == MAV_TYPE_QUADROTOR) {
+ mavlink_msg_hil_controls_send(chan,
+ hrt_absolute_time(),
+ ((act_outputs.output[0] - 900.0f) / 600.0f) / 2.0f,
+ ((act_outputs.output[1] - 900.0f) / 600.0f) / 2.0f,
+ ((act_outputs.output[2] - 900.0f) / 600.0f) / 2.0f,
+ ((act_outputs.output[3] - 900.0f) / 600.0f) / 2.0f,
+ -1,
+ -1,
+ -1,
+ -1,
+ mavlink_mode,
+ 0);
+
+ } else if (mavlink_system.type == MAV_TYPE_HEXAROTOR) {
+ mavlink_msg_hil_controls_send(chan,
+ hrt_absolute_time(),
+ ((act_outputs.output[0] - 900.0f) / 600.0f) / 2.0f,
+ ((act_outputs.output[1] - 900.0f) / 600.0f) / 2.0f,
+ ((act_outputs.output[2] - 900.0f) / 600.0f) / 2.0f,
+ ((act_outputs.output[3] - 900.0f) / 600.0f) / 2.0f,
+ ((act_outputs.output[4] - 900.0f) / 600.0f) / 2.0f,
+ ((act_outputs.output[5] - 900.0f) / 600.0f) / 2.0f,
+ -1,
+ -1,
+ mavlink_mode,
+ 0);
+
+ } else if (mavlink_system.type == MAV_TYPE_OCTOROTOR) {
+ mavlink_msg_hil_controls_send(chan,
+ hrt_absolute_time(),
+ ((act_outputs.output[0] - 900.0f) / 600.0f) / 2.0f,
+ ((act_outputs.output[1] - 900.0f) / 600.0f) / 2.0f,
+ ((act_outputs.output[2] - 900.0f) / 600.0f) / 2.0f,
+ ((act_outputs.output[3] - 900.0f) / 600.0f) / 2.0f,
+ ((act_outputs.output[4] - 900.0f) / 600.0f) / 2.0f,
+ ((act_outputs.output[5] - 900.0f) / 600.0f) / 2.0f,
+ ((act_outputs.output[6] - 900.0f) / 600.0f) / 2.0f,
+ ((act_outputs.output[7] - 900.0f) / 600.0f) / 2.0f,
+ mavlink_mode,
+ 0);
+
+ } else {
+ mavlink_msg_hil_controls_send(chan,
+ hrt_absolute_time(),
+ (act_outputs.output[0] - 1500.0f) / 500.0f,
+ (act_outputs.output[1] - 1500.0f) / 500.0f,
+ (act_outputs.output[2] - 1500.0f) / 500.0f,
+ (act_outputs.output[3] - 1000.0f) / 1000.0f,
+ (act_outputs.output[4] - 1500.0f) / 500.0f,
+ (act_outputs.output[5] - 1500.0f) / 500.0f,
+ (act_outputs.output[6] - 1500.0f) / 500.0f,
+ (act_outputs.output[7] - 1500.0f) / 500.0f,
+ mavlink_mode,
+ 0);
+ }
+ }
+ }
+}
+
+void
+l_actuator_armed(const struct listener *l)
+{
+ orb_copy(ORB_ID(actuator_armed), mavlink_subs.armed_sub, &armed);
+}
+
+void
+l_manual_control_setpoint(const struct listener *l)
+{
+ struct manual_control_setpoint_s man_control;
+
+ /* copy manual control data into local buffer */
+ orb_copy(ORB_ID(manual_control_setpoint), mavlink_subs.man_control_sp_sub, &man_control);
+
+ if (gcs_link)
+ mavlink_msg_manual_control_send(MAVLINK_COMM_0,
+ mavlink_system.sysid,
+ man_control.roll * 1000,
+ man_control.pitch * 1000,
+ man_control.yaw * 1000,
+ man_control.throttle * 1000,
+ 0);
+}
+
+void
+l_vehicle_attitude_controls(const struct listener *l)
+{
+ struct actuator_controls_effective_s actuators;
+
+ orb_copy(ORB_ID_VEHICLE_ATTITUDE_CONTROLS_EFFECTIVE, mavlink_subs.actuators_sub, &actuators);
+
+ if (gcs_link) {
+ /* send, add spaces so that string buffer is at least 10 chars long */
+ mavlink_msg_named_value_float_send(MAVLINK_COMM_0,
+ last_sensor_timestamp / 1000,
+ "eff ctrl0 ",
+ actuators.control_effective[0]);
+ mavlink_msg_named_value_float_send(MAVLINK_COMM_0,
+ last_sensor_timestamp / 1000,
+ "eff ctrl1 ",
+ actuators.control_effective[1]);
+ mavlink_msg_named_value_float_send(MAVLINK_COMM_0,
+ last_sensor_timestamp / 1000,
+ "eff ctrl2 ",
+ actuators.control_effective[2]);
+ mavlink_msg_named_value_float_send(MAVLINK_COMM_0,
+ last_sensor_timestamp / 1000,
+ "eff ctrl3 ",
+ actuators.control_effective[3]);
+ }
+}
+
+void
+l_debug_key_value(const struct listener *l)
+{
+ struct debug_key_value_s debug;
+
+ orb_copy(ORB_ID(debug_key_value), mavlink_subs.debug_key_value, &debug);
+
+ /* Enforce null termination */
+ debug.key[sizeof(debug.key) - 1] = '\0';
+
+ mavlink_msg_named_value_float_send(MAVLINK_COMM_0,
+ last_sensor_timestamp / 1000,
+ debug.key,
+ debug.value);
+}
+
+void
+l_optical_flow(const struct listener *l)
+{
+ struct optical_flow_s flow;
+
+ orb_copy(ORB_ID(optical_flow), mavlink_subs.optical_flow, &flow);
+
+ mavlink_msg_optical_flow_send(MAVLINK_COMM_0, flow.timestamp, flow.sensor_id, flow.flow_raw_x, flow.flow_raw_y,
+ flow.flow_comp_x_m, flow.flow_comp_y_m, flow.quality, flow.ground_distance_m);
+}
+
+void
+l_home(const struct listener *l)
+{
+ struct home_position_s home;
+
+ orb_copy(ORB_ID(home_position), mavlink_subs.home_sub, &home);
+
+ mavlink_msg_gps_global_origin_send(MAVLINK_COMM_0, home.lat, home.lon, home.alt);
+}
+
+static void *
+uorb_receive_thread(void *arg)
+{
+ /* Set thread name */
+ prctl(PR_SET_NAME, "mavlink orb rcv", getpid());
+
+ /*
+ * set up poll to block for new data,
+ * wait for a maximum of 1000 ms (1 second)
+ */
+ const int timeout = 1000;
+
+ /*
+ * Initialise listener array.
+ *
+ * Might want to invoke each listener once to set initial state.
+ */
+ struct pollfd fds[n_listeners];
+
+ for (unsigned i = 0; i < n_listeners; i++) {
+ fds[i].fd = *listeners[i].subp;
+ fds[i].events = POLLIN;
+
+ /* Invoke callback to set initial state */
+ //listeners[i].callback(&listener[i]);
+ }
+
+ while (!thread_should_exit) {
+
+ int poll_ret = poll(fds, n_listeners, timeout);
+
+ /* handle the poll result */
+ if (poll_ret == 0) {
+ mavlink_missionlib_send_gcs_string("[mavlink] No telemetry data for 1 s");
+
+ } else if (poll_ret < 0) {
+ mavlink_missionlib_send_gcs_string("[mavlink] ERROR reading uORB data");
+
+ } else {
+
+ for (unsigned i = 0; i < n_listeners; i++) {
+ if (fds[i].revents & POLLIN)
+ listeners[i].callback(&listeners[i]);
+ }
+ }
+ }
+
+ return NULL;
+}
+
+pthread_t
+uorb_receive_start(void)
+{
+ /* --- SENSORS RAW VALUE --- */
+ mavlink_subs.sensor_sub = orb_subscribe(ORB_ID(sensor_combined));
+ /* rate limit set externally based on interface speed, set a basic default here */
+ orb_set_interval(mavlink_subs.sensor_sub, 200); /* 5Hz updates */
+
+ /* --- ATTITUDE VALUE --- */
+ mavlink_subs.att_sub = orb_subscribe(ORB_ID(vehicle_attitude));
+ /* rate limit set externally based on interface speed, set a basic default here */
+ orb_set_interval(mavlink_subs.att_sub, 200); /* 5Hz updates */
+
+ /* --- GPS VALUE --- */
+ mavlink_subs.gps_sub = orb_subscribe(ORB_ID(vehicle_gps_position));
+ orb_set_interval(mavlink_subs.gps_sub, 200); /* 5Hz updates */
+
+ /* --- HOME POSITION --- */
+ mavlink_subs.home_sub = orb_subscribe(ORB_ID(home_position));
+ orb_set_interval(mavlink_subs.home_sub, 1000); /* 1Hz updates */
+
+ /* --- SYSTEM STATE --- */
+ status_sub = orb_subscribe(ORB_ID(vehicle_status));
+ orb_set_interval(status_sub, 300); /* max 3.33 Hz updates */
+
+ /* --- RC CHANNELS VALUE --- */
+ rc_sub = orb_subscribe(ORB_ID(rc_channels));
+ orb_set_interval(rc_sub, 100); /* 10Hz updates */
+
+ /* --- RC RAW VALUE --- */
+ mavlink_subs.input_rc_sub = orb_subscribe(ORB_ID(input_rc));
+ orb_set_interval(mavlink_subs.input_rc_sub, 100);
+
+ /* --- GLOBAL POS VALUE --- */
+ mavlink_subs.global_pos_sub = orb_subscribe(ORB_ID(vehicle_global_position));
+ orb_set_interval(mavlink_subs.global_pos_sub, 100); /* 10 Hz active updates */
+
+ /* --- LOCAL POS VALUE --- */
+ mavlink_subs.local_pos_sub = orb_subscribe(ORB_ID(vehicle_local_position));
+ orb_set_interval(mavlink_subs.local_pos_sub, 1000); /* 1Hz active updates */
+
+ /* --- GLOBAL SETPOINT VALUE --- */
+ mavlink_subs.spg_sub = orb_subscribe(ORB_ID(vehicle_global_position_setpoint));
+ orb_set_interval(mavlink_subs.spg_sub, 2000); /* 0.5 Hz updates */
+
+ /* --- LOCAL SETPOINT VALUE --- */
+ mavlink_subs.spl_sub = orb_subscribe(ORB_ID(vehicle_local_position_setpoint));
+ orb_set_interval(mavlink_subs.spl_sub, 2000); /* 0.5 Hz updates */
+
+ /* --- ATTITUDE SETPOINT VALUE --- */
+ mavlink_subs.spa_sub = orb_subscribe(ORB_ID(vehicle_attitude_setpoint));
+ orb_set_interval(mavlink_subs.spa_sub, 2000); /* 0.5 Hz updates */
+
+ /* --- RATES SETPOINT VALUE --- */
+ mavlink_subs.rates_setpoint_sub = orb_subscribe(ORB_ID(vehicle_rates_setpoint));
+ orb_set_interval(mavlink_subs.rates_setpoint_sub, 2000); /* 0.5 Hz updates */
+
+ /* --- ACTUATOR OUTPUTS --- */
+ mavlink_subs.act_0_sub = orb_subscribe(ORB_ID(actuator_outputs_0));
+ mavlink_subs.act_1_sub = orb_subscribe(ORB_ID(actuator_outputs_1));
+ mavlink_subs.act_2_sub = orb_subscribe(ORB_ID(actuator_outputs_2));
+ mavlink_subs.act_3_sub = orb_subscribe(ORB_ID(actuator_outputs_3));
+ /* rate limits set externally based on interface speed, set a basic default here */
+ orb_set_interval(mavlink_subs.act_0_sub, 100); /* 10Hz updates */
+ orb_set_interval(mavlink_subs.act_1_sub, 100); /* 10Hz updates */
+ orb_set_interval(mavlink_subs.act_2_sub, 100); /* 10Hz updates */
+ orb_set_interval(mavlink_subs.act_3_sub, 100); /* 10Hz updates */
+
+ /* --- ACTUATOR ARMED VALUE --- */
+ mavlink_subs.armed_sub = orb_subscribe(ORB_ID(actuator_armed));
+ orb_set_interval(mavlink_subs.armed_sub, 100); /* 10Hz updates */
+
+ /* --- MAPPED MANUAL CONTROL INPUTS --- */
+ mavlink_subs.man_control_sp_sub = orb_subscribe(ORB_ID(manual_control_setpoint));
+ /* rate limits set externally based on interface speed, set a basic default here */
+ orb_set_interval(mavlink_subs.man_control_sp_sub, 100); /* 10Hz updates */
+
+ /* --- ACTUATOR CONTROL VALUE --- */
+ mavlink_subs.actuators_sub = orb_subscribe(ORB_ID_VEHICLE_ATTITUDE_CONTROLS_EFFECTIVE);
+ orb_set_interval(mavlink_subs.actuators_sub, 100); /* 10Hz updates */
+
+ /* --- DEBUG VALUE OUTPUT --- */
+ mavlink_subs.debug_key_value = orb_subscribe(ORB_ID(debug_key_value));
+ orb_set_interval(mavlink_subs.debug_key_value, 100); /* 10Hz updates */
+
+ /* --- FLOW SENSOR --- */
+ mavlink_subs.optical_flow = orb_subscribe(ORB_ID(optical_flow));
+ orb_set_interval(mavlink_subs.optical_flow, 200); /* 5Hz updates */
+
+ /* start the listener loop */
+ pthread_attr_t uorb_attr;
+ pthread_attr_init(&uorb_attr);
+
+ /* Set stack size, needs less than 2k */
+ pthread_attr_setstacksize(&uorb_attr, 2048);
+
+ pthread_t thread;
+ pthread_create(&thread, &uorb_attr, uorb_receive_thread, NULL);
+ return thread;
+}