diff options
Diffstat (limited to 'apps/fixedwing_pos_control/fixedwing_pos_control_main.c')
| -rw-r--r-- | apps/fixedwing_pos_control/fixedwing_pos_control_main.c | 208 |
1 files changed, 208 insertions, 0 deletions
diff --git a/apps/fixedwing_pos_control/fixedwing_pos_control_main.c b/apps/fixedwing_pos_control/fixedwing_pos_control_main.c new file mode 100644 index 000000000..892da5f09 --- /dev/null +++ b/apps/fixedwing_pos_control/fixedwing_pos_control_main.c @@ -0,0 +1,208 @@ +/**************************************************************************** + * + * Copyright (C) 2012 PX4 Development Team. All rights reserved. + * Author: @author Ivan Ovinnikov <oivan@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 fixedwing_pos_control.c + * Implementation of a fixed wing attitude controller. + */ + +#include <nuttx/config.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <fcntl.h> +#include <errno.h> +#include <math.h> +#include <poll.h> +#include <time.h> +#include <arch/board/up_hrt.h> +#include <arch/board/board.h> +#include <uORB/uORB.h> +#include <uORB/topics/vehicle_global_position.h> +#include <uORB/topics/vehicle_global_position_setpoint.h> +#include <uORB/topics/vehicle_attitude_setpoint.h> +#include <uORB/topics/manual_control_setpoint.h> +#include <uORB/topics/actuator_controls.h> +#include <uORB/topics/vehicle_rates_setpoint.h> +#include <systemlib/param/param.h> +#include <systemlib/pid/pid.h> +#include <systemlib/geo/geo.h> +#include <systemlib/systemlib.h> + +/* Prototypes */ +/** + * Deamon management function. + */ +__EXPORT int fixedwing_pos_control_main(int argc, char *argv[]); + +/** + * Mainloop of deamon. + */ +int fixedwing_pos_control_thread_main(int argc, char *argv[]); + +/** + * Print the correct usage. + */ +static void usage(const char *reason); + +/* Variables */ +static bool thread_should_exit = false; /**< Deamon exit flag */ +static bool thread_running = false; /**< Deamon status flag */ +static int deamon_task; /**< Handle of deamon task / thread */ + +/* Main Thread */ +int fixedwing_pos_control_thread_main(int argc, char *argv[]) +{ + /* read arguments */ + bool verbose = false; + + for (int i = 1; i < argc; i++) { + if (strcmp(argv[i], "-v") == 0 || strcmp(argv[i], "--verbose") == 0) { + verbose = true; + } + } + + /* welcome user */ + printf("[fixedwing att_control] started\n"); + + /* declare and safely initialize all structs */ + + + /* output structs */ + struct vehicle_attitude_setpoint_s attitude_setpoint; + memset(&attitude_setpoint, 0, sizeof(attitude_setpoint)); + + /* publish attitude setpoint */ + + attitude_setpoint.roll_body = 0.0f; + attitude_setpoint.pitch_body = 0.0f; + attitude_setpoint.yaw_body = 0.0f; + orb_advert_t attitude_setpoint_pub = orb_advertise(ORB_ID(vehicle_attitude_setpoint), &attitude_setpoint); + + + +// /* subscribe to attitude (for attitude rate) and rate septoint */ +// + + /* Setup of loop */ +// struct pollfd fds = { .fd = att_sub, .events = POLLIN }; + + while(!thread_should_exit) + { + /* wait for a sensor update, check for exit condition every 500 ms */ +// poll(&fds, 1, 500); + sleep(500); //TODO removeme, this is for testing only + + /* Control */ + + + orb_publish(ORB_ID(vehicle_attitude_setpoint), attitude_setpoint_pub, &attitude_setpoint); + } + + printf("[fixedwing_pos_control] exiting.\n"); + thread_running = false; + + + close(attitude_setpoint_pub); + + fflush(stdout); + exit(0); + + return 0; + +} + +/* Startup Functions */ + +static void +usage(const char *reason) +{ + if (reason) + fprintf(stderr, "%s\n", reason); + fprintf(stderr, "usage: fixedwing_pos_control {start|stop|status}\n\n"); + exit(1); +} + +/** + * The deamon app only briefly exists to start + * the background job. The stack size assigned in the + * Makefile does only apply to this management task. + * + * The actual stack size should be set in the call + * to task_create(). + */ +int fixedwing_pos_control_main(int argc, char *argv[]) +{ + if (argc < 1) + usage("missing command"); + + if (!strcmp(argv[1], "start")) { + + if (thread_running) { + printf("fixedwing_pos_control already running\n"); + /* this is not an error */ + exit(0); + } + + thread_should_exit = false; + deamon_task = task_spawn("fixedwing_pos_control", + SCHED_DEFAULT, + SCHED_PRIORITY_MAX - 20, + 4096, + fixedwing_pos_control_thread_main, + (argv) ? (const char **)&argv[2] : (const char **)NULL); + thread_running = true; + exit(0); + } + + if (!strcmp(argv[1], "stop")) { + thread_should_exit = true; + exit(0); + } + + if (!strcmp(argv[1], "status")) { + if (thread_running) { + printf("\tfixedwing_pos_control is running\n"); + } else { + printf("\tfixedwing_pos_control not started\n"); + } + exit(0); + } + + usage("unrecognized command"); + exit(1); +} + + + |