gpsfailure: add skeleton class, activate in commander

1 files changed, 170 insertions, 0 deletions

diff --git a/src/modules/navigator/gpsfailure.cpp b/src/modules/navigator/gpsfailure.cpp
new file mode 100644
index 000000000..4c526b76e
--- /dev/null
+++ b/src/modules/navigator/gpsfailure.cpp
@@ -0,0 +1,170 @@
+/****************************************************************************
+ *
+ *   Copyright (c) 2013-2014 PX4 Development Team. All rights reserved.
+ *
+ * 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 gpsfailure.cpp
+ * Helper class for gpsfailure mode according to the OBC rules
+ *
+ * @author Thomas Gubler <thomasgubler@gmail.com>
+ */
+
+#include <string.h>
+#include <stdlib.h>
+#include <math.h>
+#include <fcntl.h>
+
+#include <mavlink/mavlink_log.h>
+#include <systemlib/err.h>
+#include <geo/geo.h>
+
+#include <uORB/uORB.h>
+#include <uORB/topics/mission.h>
+#include <uORB/topics/home_position.h>
+
+#include "navigator.h"
+#include "gpsfailure.h"
+
+#define DELAY_SIGMA	0.01f
+
+GpsFailure::GpsFailure(Navigator *navigator, const char *name) :
+	MissionBlock(navigator, name),
+	_gpsf_state(GPSF_STATE_NONE)
+{
+	/* load initial params */
+	updateParams();
+	/* initial reset */
+	on_inactive();
+}
+
+GpsFailure::~GpsFailure()
+{
+}
+
+void
+GpsFailure::on_inactive()
+{
+	/* reset GPSF state only if setpoint moved */
+	if (!_navigator->get_can_loiter_at_sp()) {
+		_gpsf_state = GPSF_STATE_NONE;
+	}
+}
+
+void
+GpsFailure::on_activation()
+{
+	_gpsf_state = GPSF_STATE_NONE;
+	updateParams();
+	advance_gpsf();
+	set_gpsf_item();
+}
+
+void
+GpsFailure::on_active()
+{
+	if (is_mission_item_reached()) {
+		updateParams();
+		advance_gpsf();
+		set_gpsf_item();
+	}
+}
+
+void
+GpsFailure::set_gpsf_item()
+{
+	struct position_setpoint_triplet_s *pos_sp_triplet = _navigator->get_position_setpoint_triplet();
+
+	set_previous_pos_setpoint();
+	_navigator->set_can_loiter_at_sp(false);
+
+	switch (_gpsf_state) {
+	case GPSF_STATE_LOITER: {
+		//_mission_item.lat = (double)(_param_commsholdlat.get()) * 1.0e-7;
+		//_mission_item.lon = (double)(_param_commsholdlon.get()) * 1.0e-7;
+		//_mission_item.altitude_is_relative = false;
+		//_mission_item.altitude = _param_commsholdalt.get();
+		//_mission_item.yaw = NAN;
+		//_mission_item.loiter_radius = _navigator->get_loiter_radius();
+		//_mission_item.loiter_direction = 1;
+		//_mission_item.nav_cmd = NAV_CMD_LOITER_TIME_LIMIT;
+		//_mission_item.acceptance_radius = _navigator->get_acceptance_radius();
+		//_mission_item.time_inside = _param_commsholdwaittime.get() < 0.0f ? 0.0f : _param_commsholdwaittime.get();
+		//_mission_item.pitch_min = 0.0f;
+		//_mission_item.autocontinue = true;
+		//_mission_item.origin = ORIGIN_ONBOARD;
+
+		//_navigator->set_can_loiter_at_sp(true);
+		break;
+	}
+	case GPSF_STATE_TERMINATE: {
+		//_mission_item.lat = (double)(_param_airfieldhomelat.get()) * 1.0e-7;
+		//_mission_item.lon = (double)(_param_airfieldhomelon.get()) * 1.0e-7;
+		//_mission_item.altitude_is_relative = false;
+		//_mission_item.altitude = _param_airfieldhomealt.get();
+		//_mission_item.yaw = NAN;
+		//_mission_item.loiter_radius = _navigator->get_loiter_radius();
+		//_mission_item.loiter_direction = 1;
+		//_mission_item.nav_cmd = NAV_CMD_LOITER_UNLIMITED;
+		//_mission_item.acceptance_radius = _navigator->get_acceptance_radius();
+		//_mission_item.pitch_min = 0.0f;
+		//_mission_item.autocontinue = true;
+		//_mission_item.origin = ORIGIN_ONBOARD;
+
+		//_navigator->set_can_loiter_at_sp(true);
+		break;
+	}
+	default:
+		break;
+	}
+
+	reset_mission_item_reached();
+
+	/* convert mission item to current position setpoint and make it valid */
+	mission_item_to_position_setpoint(&_mission_item, &pos_sp_triplet->current);
+	pos_sp_triplet->next.valid = false;
+
+	_navigator->set_position_setpoint_triplet_updated();
+}
+
+void
+GpsFailure::advance_gpsf()
+{
+	switch (_gpsf_state) {
+	case GPSF_STATE_NONE:
+		_gpsf_state = GPSF_STATE_LOITER;
+		break;
+	case GPSF_STATE_LOITER:
+		_gpsf_state = GPSF_STATE_TERMINATE;
+		break;
+	default:
+		break;
+	}
+}