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Diffstat (limited to 'apps/ardrone_interface/ardrone_interface.c')
-rw-r--r--apps/ardrone_interface/ardrone_interface.c398
1 files changed, 0 insertions, 398 deletions
diff --git a/apps/ardrone_interface/ardrone_interface.c b/apps/ardrone_interface/ardrone_interface.c
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--- a/apps/ardrone_interface/ardrone_interface.c
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-/****************************************************************************
- *
- * 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 ardrone_interface.c
- * Implementation of AR.Drone 1.0 / 2.0 motor control interface.
- */
-
-#include <nuttx/config.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <stdbool.h>
-#include <unistd.h>
-#include <math.h>
-#include <fcntl.h>
-#include <errno.h>
-#include <debug.h>
-#include <termios.h>
-#include <time.h>
-#include <systemlib/err.h>
-#include <sys/prctl.h>
-#include <drivers/drv_hrt.h>
-#include <uORB/uORB.h>
-#include <uORB/topics/vehicle_status.h>
-#include <uORB/topics/actuator_controls.h>
-
-#include <systemlib/systemlib.h>
-
-#include "ardrone_motor_control.h"
-
-__EXPORT int ardrone_interface_main(int argc, char *argv[]);
-
-
-static bool thread_should_exit = false; /**< Deamon exit flag */
-static bool thread_running = false; /**< Deamon status flag */
-static int ardrone_interface_task; /**< Handle of deamon task / thread */
-static int ardrone_write; /**< UART to write AR.Drone commands to */
-
-/**
- * Mainloop of ardrone_interface.
- */
-int ardrone_interface_thread_main(int argc, char *argv[]);
-
-/**
- * Open the UART connected to the motor controllers
- */
-static int ardrone_open_uart(char *uart_name, struct termios *uart_config_original);
-
-/**
- * Print the correct usage.
- */
-static void usage(const char *reason);
-
-static void
-usage(const char *reason)
-{
- if (reason)
- fprintf(stderr, "%s\n", reason);
- fprintf(stderr, "usage: ardrone_interface {start|stop|status} [-d <UART>]\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 ardrone_interface_main(int argc, char *argv[])
-{
- if (argc < 1)
- usage("missing command");
-
- if (!strcmp(argv[1], "start")) {
-
- if (thread_running) {
- printf("ardrone_interface already running\n");
- /* this is not an error */
- exit(0);
- }
-
- thread_should_exit = false;
- ardrone_interface_task = task_spawn("ardrone_interface",
- SCHED_DEFAULT,
- SCHED_PRIORITY_MAX - 15,
- 2048,
- ardrone_interface_thread_main,
- (argv) ? (const char **)&argv[2] : (const char **)NULL);
- exit(0);
- }
-
- if (!strcmp(argv[1], "stop")) {
- thread_should_exit = true;
- exit(0);
- }
-
- if (!strcmp(argv[1], "status")) {
- if (thread_running) {
- printf("\tardrone_interface is running\n");
- } else {
- printf("\tardrone_interface not started\n");
- }
- exit(0);
- }
-
- usage("unrecognized command");
- exit(1);
-}
-
-static int ardrone_open_uart(char *uart_name, struct termios *uart_config_original)
-{
- /* baud rate */
- int speed = B115200;
- int uart;
-
- /* open uart */
- uart = open(uart_name, O_RDWR | O_NOCTTY);
-
- /* Try to set baud rate */
- struct termios uart_config;
- int termios_state;
-
- /* Back up the original uart configuration to restore it after exit */
- if ((termios_state = tcgetattr(uart, uart_config_original)) < 0) {
- fprintf(stderr, "[ardrone_interface] ERROR getting baudrate / termios config for %s: %d\n", uart_name, termios_state);
- close(uart);
- return -1;
- }
-
- /* Fill the struct for the new configuration */
- tcgetattr(uart, &uart_config);
-
- /* Clear ONLCR flag (which appends a CR for every LF) */
- uart_config.c_oflag &= ~ONLCR;
-
- /* Set baud rate */
- if (cfsetispeed(&uart_config, speed) < 0 || cfsetospeed(&uart_config, speed) < 0) {
- fprintf(stderr, "[ardrone_interface] ERROR setting baudrate / termios config for %s: %d (cfsetispeed, cfsetospeed)\n", uart_name, termios_state);
- close(uart);
- return -1;
- }
-
-
- if ((termios_state = tcsetattr(uart, TCSANOW, &uart_config)) < 0) {
- fprintf(stderr, "[ardrone_interface] ERROR setting baudrate / termios config for %s (tcsetattr)\n", uart_name);
- close(uart);
- return -1;
- }
-
- return uart;
-}
-
-int ardrone_interface_thread_main(int argc, char *argv[])
-{
- thread_running = true;
-
- char *device = "/dev/ttyS1";
-
- /* welcome user */
- printf("[ardrone_interface] Control started, taking over motors\n");
-
- /* File descriptors */
- int gpios;
-
- char *commandline_usage = "\tusage: ardrone_interface start|status|stop [-t for motor test (10%% thrust)]\n";
-
- bool motor_test_mode = false;
- int test_motor = -1;
-
- /* read commandline arguments */
- for (int i = 0; i < argc && argv[i]; i++) {
- if (strcmp(argv[i], "-t") == 0 || strcmp(argv[i], "--test") == 0) {
- motor_test_mode = true;
- }
-
- if (strcmp(argv[i], "-m") == 0 || strcmp(argv[i], "--motor") == 0) {
- if (i+1 < argc) {
- int motor = atoi(argv[i+1]);
- if (motor > 0 && motor < 5) {
- test_motor = motor;
- } else {
- thread_running = false;
- errx(1, "supply a motor # between 1 and 4. Example: -m 1\n %s", commandline_usage);
- }
- } else {
- thread_running = false;
- errx(1, "missing parameter to -m 1..4\n %s", commandline_usage);
- }
- }
- if (strcmp(argv[i], "-d") == 0 || strcmp(argv[i], "--device") == 0) { //device set
- if (argc > i + 1) {
- device = argv[i + 1];
-
- } else {
- thread_running = false;
- errx(1, "missing parameter to -m 1..4\n %s", commandline_usage);
- }
- }
- }
-
- struct termios uart_config_original;
-
- if (motor_test_mode) {
- printf("[ardrone_interface] Motor test mode enabled, setting 10 %% thrust.\n");
- }
-
- /* Led animation */
- int counter = 0;
- int led_counter = 0;
-
- /* declare and safely initialize all structs */
- struct vehicle_status_s state;
- memset(&state, 0, sizeof(state));
- struct actuator_controls_s actuator_controls;
- memset(&actuator_controls, 0, sizeof(actuator_controls));
- struct actuator_armed_s armed;
- armed.armed = false;
-
- /* subscribe to attitude, motor setpoints and system state */
- int actuator_controls_sub = orb_subscribe(ORB_ID_VEHICLE_ATTITUDE_CONTROLS);
- int state_sub = orb_subscribe(ORB_ID(vehicle_status));
- int armed_sub = orb_subscribe(ORB_ID(actuator_armed));
-
- printf("[ardrone_interface] Motors initialized - ready.\n");
- fflush(stdout);
-
- /* enable UART, writes potentially an empty buffer, but multiplexing is disabled */
- ardrone_write = ardrone_open_uart(device, &uart_config_original);
-
- /* initialize multiplexing, deactivate all outputs - must happen after UART open to claim GPIOs on PX4FMU */
- gpios = ar_multiplexing_init();
-
- if (ardrone_write < 0) {
- fprintf(stderr, "[ardrone_interface] Failed opening AR.Drone UART, exiting.\n");
- thread_running = false;
- exit(ERROR);
- }
-
- /* initialize motors */
- if (OK != ar_init_motors(ardrone_write, gpios)) {
- close(ardrone_write);
- fprintf(stderr, "[ardrone_interface] Failed initializing AR.Drone motors, exiting.\n");
- thread_running = false;
- exit(ERROR);
- }
-
- ardrone_write_motor_commands(ardrone_write, 0, 0, 0, 0);
-
-
- // XXX Re-done initialization to make sure it is accepted by the motors
- // XXX should be removed after more testing, but no harm
-
- /* close uarts */
- close(ardrone_write);
-
- /* enable UART, writes potentially an empty buffer, but multiplexing is disabled */
- ardrone_write = ardrone_open_uart(device, &uart_config_original);
-
- /* initialize multiplexing, deactivate all outputs - must happen after UART open to claim GPIOs on PX4FMU */
- gpios = ar_multiplexing_init();
-
- if (ardrone_write < 0) {
- fprintf(stderr, "[ardrone_interface] Failed opening AR.Drone UART, exiting.\n");
- thread_running = false;
- exit(ERROR);
- }
-
- /* initialize motors */
- if (OK != ar_init_motors(ardrone_write, gpios)) {
- close(ardrone_write);
- fprintf(stderr, "[ardrone_interface] Failed initializing AR.Drone motors, exiting.\n");
- thread_running = false;
- exit(ERROR);
- }
-
- while (!thread_should_exit) {
-
- if (motor_test_mode) {
- /* set motors to idle speed */
- if (test_motor > 0 && test_motor < 5) {
- int motors[4] = {0, 0, 0, 0};
- motors[test_motor - 1] = 10;
- ardrone_write_motor_commands(ardrone_write, motors[0], motors[1], motors[2], motors[3]);
- } else {
- ardrone_write_motor_commands(ardrone_write, 10, 10, 10, 10);
- }
-
- } else {
- /* MAIN OPERATION MODE */
-
- /* get a local copy of the vehicle state */
- orb_copy(ORB_ID(vehicle_status), state_sub, &state);
- /* get a local copy of the actuator controls */
- orb_copy(ORB_ID_VEHICLE_ATTITUDE_CONTROLS, actuator_controls_sub, &actuator_controls);
- orb_copy(ORB_ID(actuator_armed), armed_sub, &armed);
-
- /* for now only spin if armed and immediately shut down
- * if in failsafe
- */
- if (armed.armed && !armed.lockdown) {
- ardrone_mixing_and_output(ardrone_write, &actuator_controls);
-
- } else {
- /* Silently lock down motor speeds to zero */
- ardrone_write_motor_commands(ardrone_write, 0, 0, 0, 0);
- }
- }
-
- if (counter % 24 == 0) {
- if (led_counter == 0) ar_set_leds(ardrone_write, 0, 1, 0, 0, 0, 0, 0 , 0);
-
- if (led_counter == 1) ar_set_leds(ardrone_write, 1, 1, 0, 0, 0, 0, 0 , 0);
-
- if (led_counter == 2) ar_set_leds(ardrone_write, 1, 0, 0, 0, 0, 0, 0 , 0);
-
- if (led_counter == 3) ar_set_leds(ardrone_write, 0, 0, 0, 1, 0, 0, 0 , 0);
-
- if (led_counter == 4) ar_set_leds(ardrone_write, 0, 0, 1, 1, 0, 0, 0 , 0);
-
- if (led_counter == 5) ar_set_leds(ardrone_write, 0, 0, 1, 0, 0, 0, 0 , 0);
-
- if (led_counter == 6) ar_set_leds(ardrone_write, 0, 0, 0, 0, 0, 1, 0 , 0);
-
- if (led_counter == 7) ar_set_leds(ardrone_write, 0, 0, 0, 0, 1, 1, 0 , 0);
-
- if (led_counter == 8) ar_set_leds(ardrone_write, 0, 0, 0, 0, 1, 0, 0 , 0);
-
- if (led_counter == 9) ar_set_leds(ardrone_write, 0, 0, 0, 0, 0, 0, 0 , 1);
-
- if (led_counter == 10) ar_set_leds(ardrone_write, 0, 0, 0, 0, 0, 0, 1 , 1);
-
- if (led_counter == 11) ar_set_leds(ardrone_write, 0, 0, 0, 0, 0, 0, 1 , 0);
-
- led_counter++;
-
- if (led_counter == 12) led_counter = 0;
- }
-
- /* run at approximately 200 Hz */
- usleep(4500);
-
- counter++;
- }
-
- /* restore old UART config */
- int termios_state;
-
- if ((termios_state = tcsetattr(ardrone_write, TCSANOW, &uart_config_original)) < 0) {
- fprintf(stderr, "[ardrone_interface] ERROR setting baudrate / termios config for (tcsetattr)\n");
- }
-
- printf("[ardrone_interface] Restored original UART config, exiting..\n");
-
- /* close uarts */
- close(ardrone_write);
- ar_multiplexing_deinit(gpios);
-
- fflush(stdout);
-
- thread_running = false;
-
- return OK;
-}
-