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Diffstat (limited to 'src/modules/mavlink_onboard/mavlink.c')
| -rw-r--r-- | src/modules/mavlink_onboard/mavlink.c | 536 |
1 files changed, 0 insertions, 536 deletions
diff --git a/src/modules/mavlink_onboard/mavlink.c b/src/modules/mavlink_onboard/mavlink.c deleted file mode 100644 index 0edb53a3e..000000000 --- a/src/modules/mavlink_onboard/mavlink.c +++ /dev/null @@ -1,536 +0,0 @@ -/**************************************************************************** - * - * 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 mavlink.c - * MAVLink 1.0 protocol implementation. - * - * @author Lorenz Meier <lm@inf.ethz.ch> - */ - -#include <nuttx/config.h> -#include <unistd.h> -#include <pthread.h> -#include <stdio.h> -#include <math.h> -#include <stdbool.h> -#include <fcntl.h> -#include <mqueue.h> -#include <string.h> -#include "mavlink_bridge_header.h" -#include <drivers/drv_hrt.h> -#include <time.h> -#include <float.h> -#include <unistd.h> -#include <nuttx/sched.h> -#include <sys/prctl.h> -#include <termios.h> -#include <errno.h> -#include <stdlib.h> -#include <poll.h> - -#include <systemlib/param/param.h> -#include <systemlib/systemlib.h> -#include <systemlib/err.h> - -#include "orb_topics.h" -#include "util.h" - -__EXPORT int mavlink_onboard_main(int argc, char *argv[]); - -static int mavlink_thread_main(int argc, char *argv[]); - -/* thread state */ -volatile bool thread_should_exit = false; -static volatile bool thread_running = false; -static int mavlink_task; - -/* pthreads */ -static pthread_t receive_thread; - -/* terminate MAVLink on user request - disabled by default */ -static bool mavlink_link_termination_allowed = false; - -mavlink_system_t mavlink_system = { - 100, - 50, - MAV_TYPE_QUADROTOR, - 0, - 0, - 0 -}; // System ID, 1-255, Component/Subsystem ID, 1-255 - -/* XXX not widely used */ -uint8_t chan = MAVLINK_COMM_0; - -/* XXX probably should be in a header... */ -extern pthread_t receive_start(int uart); - -bool mavlink_hil_enabled = false; - -/* protocol interface */ -static int uart; -static int baudrate; -bool gcs_link = true; - -/* interface mode */ -static enum { - MAVLINK_INTERFACE_MODE_OFFBOARD, - MAVLINK_INTERFACE_MODE_ONBOARD -} mavlink_link_mode = MAVLINK_INTERFACE_MODE_OFFBOARD; - -static void mavlink_update_system(void); -static int mavlink_open_uart(int baudrate, const char *uart_name, struct termios *uart_config_original, bool *is_usb); -static void usage(void); - -/**************************************************************************** - * Public Functions - ****************************************************************************/ - -int mavlink_open_uart(int baud, const char *uart_name, struct termios *uart_config_original, bool *is_usb) -{ - /* process baud rate */ - int speed; - - switch (baud) { - case 0: speed = B0; break; - - case 50: speed = B50; break; - - case 75: speed = B75; break; - - case 110: speed = B110; break; - - case 134: speed = B134; break; - - case 150: speed = B150; break; - - case 200: speed = B200; break; - - case 300: speed = B300; break; - - case 600: speed = B600; break; - - case 1200: speed = B1200; break; - - case 1800: speed = B1800; break; - - case 2400: speed = B2400; break; - - case 4800: speed = B4800; break; - - case 9600: speed = B9600; break; - - case 19200: speed = B19200; break; - - case 38400: speed = B38400; break; - - case 57600: speed = B57600; break; - - case 115200: speed = B115200; break; - - case 230400: speed = B230400; break; - - case 460800: speed = B460800; break; - - case 921600: speed = B921600; break; - - default: - warnx("ERROR: Unsupported baudrate: %d\n\tsupported examples:\n\n\t9600\n19200\n38400\n57600\n115200\n230400\n460800\n921600", baud); - return -EINVAL; - } - - /* open uart */ - warnx("UART is %s, baudrate is %d", uart_name, baud); - uart = open(uart_name, O_RDWR | O_NOCTTY); - - /* Try to set baud rate */ - struct termios uart_config; - int termios_state; - *is_usb = false; - - if (strcmp(uart_name, "/dev/ttyACM0") != OK) { - /* Back up the original uart configuration to restore it after exit */ - if ((termios_state = tcgetattr(uart, uart_config_original)) < 0) { - warnx("ERROR getting baudrate / termios config for %s: %d", 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) { - warnx("ERROR setting baudrate / termios config for %s: %d (cfsetispeed, cfsetospeed)", uart_name, termios_state); - close(uart); - return -1; - } - - - if ((termios_state = tcsetattr(uart, TCSANOW, &uart_config)) < 0) { - warnx("ERROR setting baudrate / termios config for %s (tcsetattr)", uart_name); - close(uart); - return -1; - } - - } else { - *is_usb = true; - } - - return uart; -} - -void -mavlink_send_uart_bytes(mavlink_channel_t channel, uint8_t *ch, int length) -{ - write(uart, ch, (size_t)(sizeof(uint8_t) * length)); -} - -/* - * Internal function to give access to the channel status for each channel - */ -mavlink_status_t* mavlink_get_channel_status(uint8_t channel) -{ - static mavlink_status_t m_mavlink_status[MAVLINK_COMM_NUM_BUFFERS]; - return &m_mavlink_status[channel]; -} - -/* - * Internal function to give access to the channel buffer for each channel - */ -mavlink_message_t* mavlink_get_channel_buffer(uint8_t channel) -{ - static mavlink_message_t m_mavlink_buffer[MAVLINK_COMM_NUM_BUFFERS]; - return &m_mavlink_buffer[channel]; -} - -void mavlink_update_system(void) -{ - static bool initialized = false; - param_t param_system_id; - param_t param_component_id; - param_t param_system_type; - - if (!initialized) { - param_system_id = param_find("MAV_SYS_ID"); - param_component_id = param_find("MAV_COMP_ID"); - param_system_type = param_find("MAV_TYPE"); - } - - /* update system and component id */ - int32_t system_id; - param_get(param_system_id, &system_id); - if (system_id > 0 && system_id < 255) { - mavlink_system.sysid = system_id; - } - - int32_t component_id; - param_get(param_component_id, &component_id); - if (component_id > 0 && component_id < 255) { - mavlink_system.compid = component_id; - } - - int32_t system_type; - param_get(param_system_type, &system_type); - if (system_type >= 0 && system_type < MAV_TYPE_ENUM_END) { - mavlink_system.type = system_type; - } -} - -void -get_mavlink_mode_and_state(const struct vehicle_control_mode_s *control_mode, const struct actuator_armed_s *armed, - uint8_t *mavlink_state, uint8_t *mavlink_mode) -{ - /* reset MAVLink mode bitfield */ - *mavlink_mode = 0; - - /* set mode flags independent of system state */ - if (control_mode->flag_control_manual_enabled) { - *mavlink_mode |= MAV_MODE_FLAG_MANUAL_INPUT_ENABLED; - } - - if (control_mode->flag_system_hil_enabled) { - *mavlink_mode |= MAV_MODE_FLAG_HIL_ENABLED; - } - - /* set arming state */ - if (armed->armed) { - *mavlink_mode |= MAV_MODE_FLAG_SAFETY_ARMED; - } else { - *mavlink_mode &= ~MAV_MODE_FLAG_SAFETY_ARMED; - } - - if (control_mode->flag_control_velocity_enabled) { - *mavlink_mode |= MAV_MODE_FLAG_GUIDED_ENABLED; - } else { - *mavlink_mode &= ~MAV_MODE_FLAG_GUIDED_ENABLED; - } - -// switch (v_status->state_machine) { -// case SYSTEM_STATE_PREFLIGHT: -// if (v_status->flag_preflight_gyro_calibration || -// v_status->flag_preflight_mag_calibration || -// v_status->flag_preflight_accel_calibration) { -// *mavlink_state = MAV_STATE_CALIBRATING; -// } else { -// *mavlink_state = MAV_STATE_UNINIT; -// } -// break; -// -// case SYSTEM_STATE_STANDBY: -// *mavlink_state = MAV_STATE_STANDBY; -// break; -// -// case SYSTEM_STATE_GROUND_READY: -// *mavlink_state = MAV_STATE_ACTIVE; -// break; -// -// case SYSTEM_STATE_MANUAL: -// *mavlink_state = MAV_STATE_ACTIVE; -// *mavlink_mode |= MAV_MODE_FLAG_MANUAL_INPUT_ENABLED; -// break; -// -// case SYSTEM_STATE_STABILIZED: -// *mavlink_state = MAV_STATE_ACTIVE; -// *mavlink_mode |= MAV_MODE_FLAG_STABILIZE_ENABLED; -// break; -// -// case SYSTEM_STATE_AUTO: -// *mavlink_state = MAV_STATE_ACTIVE; -// *mavlink_mode |= MAV_MODE_FLAG_GUIDED_ENABLED; -// break; -// -// case SYSTEM_STATE_MISSION_ABORT: -// *mavlink_state = MAV_STATE_EMERGENCY; -// break; -// -// case SYSTEM_STATE_EMCY_LANDING: -// *mavlink_state = MAV_STATE_EMERGENCY; -// break; -// -// case SYSTEM_STATE_EMCY_CUTOFF: -// *mavlink_state = MAV_STATE_EMERGENCY; -// break; -// -// case SYSTEM_STATE_GROUND_ERROR: -// *mavlink_state = MAV_STATE_EMERGENCY; -// break; -// -// case SYSTEM_STATE_REBOOT: -// *mavlink_state = MAV_STATE_POWEROFF; -// break; -// } - -} - -/** - * MAVLink Protocol main function. - */ -int mavlink_thread_main(int argc, char *argv[]) -{ - int ch; - char *device_name = "/dev/ttyS1"; - baudrate = 57600; - - /* XXX this is never written? */ - struct vehicle_status_s v_status; - struct vehicle_control_mode_s control_mode; - struct actuator_armed_s armed; - - /* work around some stupidity in task_create's argv handling */ - argc -= 2; - argv += 2; - - while ((ch = getopt(argc, argv, "b:d:eo")) != EOF) { - switch (ch) { - case 'b': - baudrate = strtoul(optarg, NULL, 10); - if (baudrate == 0) - errx(1, "invalid baud rate '%s'", optarg); - break; - - case 'd': - device_name = optarg; - break; - - case 'e': - mavlink_link_termination_allowed = true; - break; - - case 'o': - mavlink_link_mode = MAVLINK_INTERFACE_MODE_ONBOARD; - break; - - default: - usage(); - } - } - - struct termios uart_config_original; - bool usb_uart; - - /* print welcome text */ - warnx("MAVLink v1.0 serial interface starting..."); - - /* inform about mode */ - warnx((mavlink_link_mode == MAVLINK_INTERFACE_MODE_ONBOARD) ? "ONBOARD MODE" : "DOWNLINK MODE"); - - /* Flush stdout in case MAVLink is about to take it over */ - fflush(stdout); - - /* default values for arguments */ - uart = mavlink_open_uart(baudrate, device_name, &uart_config_original, &usb_uart); - if (uart < 0) - err(1, "could not open %s", device_name); - - /* Initialize system properties */ - mavlink_update_system(); - - /* start the MAVLink receiver */ - receive_thread = receive_start(uart); - - thread_running = true; - - /* arm counter to go off immediately */ - unsigned lowspeed_counter = 10; - - while (!thread_should_exit) { - - /* 1 Hz */ - if (lowspeed_counter == 10) { - mavlink_update_system(); - - /* translate the current system state to mavlink state and mode */ - uint8_t mavlink_state = 0; - uint8_t mavlink_mode = 0; - get_mavlink_mode_and_state(&control_mode, &armed, &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); - - /* send status (values already copied in the section above) */ - mavlink_msg_sys_status_send(chan, - v_status.onboard_control_sensors_present, - v_status.onboard_control_sensors_enabled, - v_status.onboard_control_sensors_health, - v_status.load * 1000.0f, - v_status.battery_voltage * 1000.0f, - v_status.battery_current * 1000.0f, - v_status.battery_remaining, - v_status.drop_rate_comm, - v_status.errors_comm, - v_status.errors_count1, - v_status.errors_count2, - v_status.errors_count3, - v_status.errors_count4); - lowspeed_counter = 0; - } - lowspeed_counter++; - - /* sleep 1000 ms */ - usleep(1000000); - } - - /* wait for threads to complete */ - pthread_join(receive_thread, NULL); - - /* Reset the UART flags to original state */ - if (!usb_uart) - tcsetattr(uart, TCSANOW, &uart_config_original); - - thread_running = false; - - exit(0); -} - -static void -usage() -{ - fprintf(stderr, "usage: mavlink_onboard start [-d <devicename>] [-b <baud rate>]\n" - " mavlink_onboard stop\n" - " mavlink_onboard status\n"); - exit(1); -} - -int mavlink_onboard_main(int argc, char *argv[]) -{ - - if (argc < 2) { - warnx("missing command"); - usage(); - } - - if (!strcmp(argv[1], "start")) { - - /* this is not an error */ - if (thread_running) - errx(0, "already running"); - - thread_should_exit = false; - mavlink_task = task_spawn_cmd("mavlink_onboard", - SCHED_DEFAULT, - SCHED_PRIORITY_DEFAULT, - 2048, - mavlink_thread_main, - (const char**)argv); - exit(0); - } - - if (!strcmp(argv[1], "stop")) { - thread_should_exit = true; - while (thread_running) { - usleep(200000); - } - warnx("terminated"); - exit(0); - } - - if (!strcmp(argv[1], "status")) { - if (thread_running) { - errx(0, "running"); - } else { - errx(1, "not running"); - } - } - - warnx("unrecognized command"); - usage(); - /* not getting here */ - return 0; -} - |