forked from Archive/PX4-Autopilot
sdlog2 logger app added. New flexible log format, compatible with APM.
This commit is contained in:
parent
bc7a7167ae
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e211352604
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@ -78,6 +78,7 @@ MODULES += modules/multirotor_pos_control
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# Logging
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#
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MODULES += modules/sdlog
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MODULES += modules/sdlog2
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#
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# Library modules
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@ -0,0 +1,43 @@
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############################################################################
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#
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# Copyright (c) 2013 PX4 Development Team. All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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#
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in
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# the documentation and/or other materials provided with the
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# distribution.
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# 3. Neither the name PX4 nor the names of its contributors may be
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# used to endorse or promote products derived from this software
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# without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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#
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############################################################################
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#
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# sdlog2 Application
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#
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MODULE_COMMAND = sdlog2
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# The main thread only buffers to RAM, needs a high priority
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MODULE_PRIORITY = "SCHED_PRIORITY_MAX-30"
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SRCS = sdlog2.c \
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sdlog2_ringbuffer.c
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@ -0,0 +1,890 @@
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/****************************************************************************
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*
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* Copyright (c) 2012, 2013 PX4 Development Team. All rights reserved.
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* Author: Lorenz Meier <lm@inf.ethz.ch>
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* Anton Babushkin <rk3dov@gmail.com>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name PX4 nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/**
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* @file sdlog2.c
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*
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* Simple SD logger for flight data. Buffers new sensor values and
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* does the heavy SD I/O in a low-priority worker thread.
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*
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* @author Lorenz Meier <lm@inf.ethz.ch>
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* @author Anton Babushkin <rk3dov@gmail.com>
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*/
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#include <nuttx/config.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <sys/prctl.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <unistd.h>
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#include <stdio.h>
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#include <poll.h>
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#include <stdlib.h>
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#include <string.h>
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#include <ctype.h>
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#include <systemlib/err.h>
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#include <unistd.h>
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#include <drivers/drv_hrt.h>
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#include <uORB/uORB.h>
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#include <uORB/topics/sensor_combined.h>
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#include <uORB/topics/vehicle_attitude.h>
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#include <uORB/topics/vehicle_attitude_setpoint.h>
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#include <uORB/topics/actuator_outputs.h>
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#include <uORB/topics/actuator_controls.h>
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#include <uORB/topics/actuator_controls_effective.h>
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#include <uORB/topics/vehicle_command.h>
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#include <uORB/topics/vehicle_local_position.h>
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#include <uORB/topics/vehicle_global_position.h>
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#include <uORB/topics/vehicle_gps_position.h>
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#include <uORB/topics/vehicle_vicon_position.h>
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#include <uORB/topics/optical_flow.h>
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#include <uORB/topics/battery_status.h>
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#include <uORB/topics/differential_pressure.h>
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#include <uORB/topics/airspeed.h>
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#include <systemlib/systemlib.h>
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#include <mavlink/mavlink_log.h>
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#include "sdlog2_ringbuffer.h"
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#include "sdlog2_messages.h"
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static bool thread_should_exit = false; /**< Deamon exit flag */
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static bool thread_running = false; /**< Deamon status flag */
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static int deamon_task; /**< Handle of deamon task / thread */
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static const int MAX_NO_LOGFOLDER = 999; /**< Maximum number of log folders */
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static const int LOG_BUFFER_SIZE = 2048;
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static const int MAX_WRITE_CHUNK = 1024;
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static const char *mountpoint = "/fs/microsd";
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int log_file = -1;
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int mavlink_fd = -1;
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struct sdlog2_logbuffer lb;
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/* mutex / condition to synchronize threads */
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pthread_mutex_t logbuffer_mutex;
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pthread_cond_t logbuffer_cond;
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/**
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* System state vector log buffer writing
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*/
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static void *sdlog2_logbuffer_write_thread(void *arg);
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/**
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* Create the thread to write the system vector
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*/
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pthread_t sdlog2_logwriter_start(struct sdlog2_logbuffer *logbuf);
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/**
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* Write a header to log file: list of message formats
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*/
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void sdlog2_write_formats(int fd);
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/**
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* SD log management function.
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*/
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__EXPORT int sdlog2_main(int argc, char *argv[]);
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/**
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* Mainloop of sd log deamon.
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*/
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int sdlog2_thread_main(int argc, char *argv[]);
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/**
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* Print the correct usage.
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*/
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static void usage(const char *reason);
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static int file_exist(const char *filename);
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static int file_copy(const char *file_old, const char *file_new);
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static void handle_command(struct vehicle_command_s *cmd);
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/**
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* Print the current status.
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*/
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static void print_sdlog2_status(void);
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/**
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* Create folder for current logging session.
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*/
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static int create_logfolder(char *folder_path);
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static void
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usage(const char *reason)
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{
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if (reason)
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fprintf(stderr, "%s\n", reason);
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errx(1, "usage: sdlog2 {start|stop|status} [-s <number of skipped lines>]\n\n");
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}
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unsigned long log_bytes_written = 0;
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uint64_t starttime = 0;
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/* logging on or off, default to true */
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bool logging_enabled = true;
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/**
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* The sd log deamon app only briefly exists to start
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* the background job. The stack size assigned in the
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* Makefile does only apply to this management task.
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*
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* The actual stack size should be set in the call
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* to task_spawn().
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*/
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int sdlog2_main(int argc, char *argv[])
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{
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if (argc < 1)
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usage("missing command");
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if (!strcmp(argv[1], "start")) {
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if (thread_running) {
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printf("sdlog2 already running\n");
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/* this is not an error */
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exit(0);
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}
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thread_should_exit = false;
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deamon_task = task_spawn("sdlog2",
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SCHED_DEFAULT,
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SCHED_PRIORITY_DEFAULT - 30,
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4096,
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sdlog2_thread_main,
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(const char **)argv);
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exit(0);
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}
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if (!strcmp(argv[1], "stop")) {
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if (!thread_running) {
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printf("\tsdlog2 is not started\n");
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}
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thread_should_exit = true;
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exit(0);
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}
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if (!strcmp(argv[1], "status")) {
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if (thread_running) {
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print_sdlog2_status();
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} else {
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printf("\tsdlog2 not started\n");
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}
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exit(0);
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}
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usage("unrecognized command");
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exit(1);
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}
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int create_logfolder(char *folder_path)
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{
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/* make folder on sdcard */
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uint16_t foldernumber = 1; // start with folder 0001
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int mkdir_ret;
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/* look for the next folder that does not exist */
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while (foldernumber < MAX_NO_LOGFOLDER) {
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/* set up file path: e.g. /mnt/sdcard/sensorfile0001.txt */
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sprintf(folder_path, "%s/session%04u", mountpoint, foldernumber);
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mkdir_ret = mkdir(folder_path, S_IRWXU | S_IRWXG | S_IRWXO);
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/* the result is -1 if the folder exists */
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if (mkdir_ret == 0) {
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/* folder does not exist, success */
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/* copy parser script file */
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// TODO
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/*
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char mfile_out[100];
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sprintf(mfile_out, "%s/session%04u/run_to_plot_data.m", mountpoint, foldernumber);
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int ret = file_copy(mfile_in, mfile_out);
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if (!ret) {
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warnx("copied m file to %s", mfile_out);
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} else {
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warnx("failed copying m file from %s to\n %s", mfile_in, mfile_out);
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}
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*/
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break;
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} else if (mkdir_ret == -1) {
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/* folder exists already */
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foldernumber++;
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continue;
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} else {
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warn("failed creating new folder");
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return -1;
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}
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}
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if (foldernumber >= MAX_NO_LOGFOLDER) {
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/* we should not end up here, either we have more than MAX_NO_LOGFOLDER on the SD card, or another problem */
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warn("all %d possible folders exist already", MAX_NO_LOGFOLDER);
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return -1;
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}
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return 0;
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}
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static void *
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sdlog2_logbuffer_write_thread(void *arg)
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{
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/* set name */
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prctl(PR_SET_NAME, "sdlog2 microSD I/O", 0);
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struct sdlog2_logbuffer *logbuf = (struct sdlog2_logbuffer *)arg;
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int poll_count = 0;
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void *read_ptr;
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int n = 0;
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while (!thread_should_exit) {
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/* make sure threads are synchronized */
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pthread_mutex_lock(&logbuffer_mutex);
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/* update read pointer if needed */
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if (n > 0) {
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sdlog2_logbuffer_mark_read(&lb, n);
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}
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/* only wait if no data is available to process */
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if (sdlog2_logbuffer_is_empty(logbuf)) {
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/* blocking wait for new data at this line */
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pthread_cond_wait(&logbuffer_cond, &logbuffer_mutex);
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}
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/* only get pointer to thread-safe data, do heavy I/O a few lines down */
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n = sdlog2_logbuffer_get_ptr(logbuf, &read_ptr);
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/* continue */
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pthread_mutex_unlock(&logbuffer_mutex);
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if (n > 0) {
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/* do heavy IO here */
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if (n > MAX_WRITE_CHUNK)
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n = MAX_WRITE_CHUNK;
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n = write(log_file, read_ptr, n);
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if (n > 0) {
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log_bytes_written += n;
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}
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}
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if (poll_count % 100 == 0) {
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fsync(log_file);
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}
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poll_count++;
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}
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fsync(log_file);
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return OK;
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}
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pthread_t sdlog2_logwriter_start(struct sdlog2_logbuffer *logbuf)
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{
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pthread_attr_t receiveloop_attr;
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pthread_attr_init(&receiveloop_attr);
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struct sched_param param;
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/* low priority, as this is expensive disk I/O */
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param.sched_priority = SCHED_PRIORITY_DEFAULT - 40;
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(void)pthread_attr_setschedparam(&receiveloop_attr, ¶m);
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pthread_attr_setstacksize(&receiveloop_attr, 2048);
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pthread_t thread;
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pthread_create(&thread, &receiveloop_attr, sdlog2_logbuffer_write_thread, logbuf);
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return thread;
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// XXX we have to destroy the attr at some point
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}
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void sdlog2_write_formats(int fd)
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{
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/* construct message format packet */
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struct {
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LOG_PACKET_HEADER;
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struct log_format_s body;
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} log_format_packet = {
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LOG_PACKET_HEADER_INIT(LOG_FORMAT_MSG),
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};
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/* fill message format packet for each format and write to log */
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int i;
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for (i = 0; i < log_formats_num; i++) {
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log_format_packet.body = log_formats[i];
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write(fd, &log_format_packet, sizeof(log_format_packet));
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}
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fsync(fd);
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}
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int sdlog2_thread_main(int argc, char *argv[])
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{
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mavlink_fd = open(MAVLINK_LOG_DEVICE, 0);
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if (mavlink_fd < 0) {
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warnx("ERROR: Failed to open MAVLink log stream, start mavlink app first.\n");
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}
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/* log every n'th value (skip three per default) */
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int skip_value = 3;
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/* work around some stupidity in task_create's argv handling */
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argc -= 2;
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argv += 2;
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int ch;
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while ((ch = getopt(argc, argv, "s:r")) != EOF) {
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switch (ch) {
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case 's': {
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/* log only every n'th (gyro clocked) value */
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unsigned s = strtoul(optarg, NULL, 10);
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if (s < 1 || s > 250) {
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errx(1, "Wrong skip value of %d, out of range (1..250)\n", s);
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} else {
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skip_value = s;
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}
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}
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break;
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case 'r':
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/* log only on request, disable logging per default */
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logging_enabled = false;
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break;
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case '?':
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if (optopt == 'c') {
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warnx("Option -%c requires an argument.\n", optopt);
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} else if (isprint(optopt)) {
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warnx("Unknown option `-%c'.\n", optopt);
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} else {
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warnx("Unknown option character `\\x%x'.\n", optopt);
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}
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default:
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usage("unrecognized flag");
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errx(1, "exiting.");
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}
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}
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if (file_exist(mountpoint) != OK) {
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errx(1, "logging mount point %s not present, exiting.", mountpoint);
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}
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char folder_path[64];
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if (create_logfolder(folder_path))
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errx(1, "unable to create logging folder, exiting.");
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/* string to hold the path to the sensorfile */
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char path_buf[64] = "";
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/* only print logging path, important to find log file later */
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warnx("logging to directory %s\n", folder_path);
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/* set up file path: e.g. /mnt/sdcard/session0001/actuator_controls0.bin */
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sprintf(path_buf, "%s/%s.bin", folder_path, "log");
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if (0 == (log_file = open(path_buf, O_CREAT | O_WRONLY | O_DSYNC))) {
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errx(1, "opening %s failed.\n", path_buf);
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}
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/* write log messages formats */
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sdlog2_write_formats(log_file);
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||||
/* --- IMPORTANT: DEFINE NUMBER OF ORB STRUCTS TO WAIT FOR HERE --- */
|
||||
/* number of messages */
|
||||
const ssize_t fdsc = 25;
|
||||
/* Sanity check variable and index */
|
||||
ssize_t fdsc_count = 0;
|
||||
/* file descriptors to wait for */
|
||||
struct pollfd fds[fdsc];
|
||||
|
||||
/* warning! using union here to save memory, elements should be used separately! */
|
||||
union {
|
||||
struct sensor_combined_s raw;
|
||||
struct vehicle_attitude_s att;
|
||||
struct vehicle_attitude_setpoint_s att_sp;
|
||||
struct actuator_outputs_s act_outputs;
|
||||
struct actuator_controls_s act_controls;
|
||||
struct actuator_controls_effective_s act_controls_effective;
|
||||
struct vehicle_command_s cmd;
|
||||
struct vehicle_local_position_s local_pos;
|
||||
struct vehicle_global_position_s global_pos;
|
||||
struct vehicle_gps_position_s gps_pos;
|
||||
struct vehicle_vicon_position_s vicon_pos;
|
||||
struct optical_flow_s flow;
|
||||
struct battery_status_s batt;
|
||||
struct differential_pressure_s diff_pres;
|
||||
struct airspeed_s airspeed;
|
||||
} buf;
|
||||
memset(&buf, 0, sizeof(buf));
|
||||
|
||||
struct {
|
||||
int cmd_sub;
|
||||
int sensor_sub;
|
||||
int att_sub;
|
||||
int att_sp_sub;
|
||||
int act_0_sub;
|
||||
int controls_0_sub;
|
||||
int controls_effective_0_sub;
|
||||
int local_pos_sub;
|
||||
int global_pos_sub;
|
||||
int gps_pos_sub;
|
||||
int vicon_pos_sub;
|
||||
int flow_sub;
|
||||
int batt_sub;
|
||||
int diff_pres_sub;
|
||||
int airspeed_sub;
|
||||
} subs;
|
||||
|
||||
/* log message buffer: header + body */
|
||||
struct {
|
||||
LOG_PACKET_HEADER;
|
||||
union {
|
||||
struct log_TS_s log_TS;
|
||||
struct log_ATT_s log_ATT;
|
||||
struct log_RAW_s log_RAW;
|
||||
} body;
|
||||
} log_msg = {
|
||||
LOG_PACKET_HEADER_INIT(0)
|
||||
};
|
||||
memset(&log_msg.body, 0, sizeof(log_msg.body));
|
||||
|
||||
/* --- MANAGEMENT - LOGGING COMMAND --- */
|
||||
/* subscribe to ORB for vehicle command */
|
||||
subs.cmd_sub = orb_subscribe(ORB_ID(vehicle_command));
|
||||
fds[fdsc_count].fd = subs.cmd_sub;
|
||||
fds[fdsc_count].events = POLLIN;
|
||||
fdsc_count++;
|
||||
|
||||
/* --- GPS POSITION --- */
|
||||
/* subscribe to ORB for global position */
|
||||
subs.gps_pos_sub = orb_subscribe(ORB_ID(vehicle_gps_position));
|
||||
fds[fdsc_count].fd = subs.gps_pos_sub;
|
||||
fds[fdsc_count].events = POLLIN;
|
||||
fdsc_count++;
|
||||
|
||||
/* --- SENSORS RAW VALUE --- */
|
||||
/* subscribe to ORB for sensors raw */
|
||||
subs.sensor_sub = orb_subscribe(ORB_ID(sensor_combined));
|
||||
fds[fdsc_count].fd = subs.sensor_sub;
|
||||
/* do not rate limit, instead use skip counter (aliasing on rate limit) */
|
||||
fds[fdsc_count].events = POLLIN;
|
||||
fdsc_count++;
|
||||
|
||||
/* --- ATTITUDE VALUE --- */
|
||||
/* subscribe to ORB for attitude */
|
||||
subs.att_sub = orb_subscribe(ORB_ID(vehicle_attitude));
|
||||
fds[fdsc_count].fd = subs.att_sub;
|
||||
fds[fdsc_count].events = POLLIN;
|
||||
fdsc_count++;
|
||||
|
||||
/* --- ATTITUDE SETPOINT VALUE --- */
|
||||
/* subscribe to ORB for attitude setpoint */
|
||||
/* struct already allocated */
|
||||
subs.att_sp_sub = orb_subscribe(ORB_ID(vehicle_attitude_setpoint));
|
||||
fds[fdsc_count].fd = subs.att_sp_sub;
|
||||
fds[fdsc_count].events = POLLIN;
|
||||
fdsc_count++;
|
||||
|
||||
/** --- ACTUATOR OUTPUTS --- */
|
||||
subs.act_0_sub = orb_subscribe(ORB_ID(actuator_outputs_0));
|
||||
fds[fdsc_count].fd = subs.act_0_sub;
|
||||
fds[fdsc_count].events = POLLIN;
|
||||
fdsc_count++;
|
||||
|
||||
/* --- ACTUATOR CONTROL VALUE --- */
|
||||
/* subscribe to ORB for actuator control */
|
||||
subs.controls_0_sub = orb_subscribe(ORB_ID_VEHICLE_ATTITUDE_CONTROLS);
|
||||
fds[fdsc_count].fd = subs.controls_0_sub;
|
||||
fds[fdsc_count].events = POLLIN;
|
||||
fdsc_count++;
|
||||
|
||||
/* --- ACTUATOR CONTROL EFFECTIVE VALUE --- */
|
||||
/* subscribe to ORB for actuator control */
|
||||
subs.controls_effective_0_sub = orb_subscribe(ORB_ID_VEHICLE_ATTITUDE_CONTROLS_EFFECTIVE);
|
||||
fds[fdsc_count].fd = subs.controls_effective_0_sub;
|
||||
fds[fdsc_count].events = POLLIN;
|
||||
fdsc_count++;
|
||||
|
||||
/* --- LOCAL POSITION --- */
|
||||
/* subscribe to ORB for local position */
|
||||
subs.local_pos_sub = orb_subscribe(ORB_ID(vehicle_local_position));
|
||||
fds[fdsc_count].fd = subs.local_pos_sub;
|
||||
fds[fdsc_count].events = POLLIN;
|
||||
fdsc_count++;
|
||||
|
||||
/* --- GLOBAL POSITION --- */
|
||||
/* subscribe to ORB for global position */
|
||||
subs.global_pos_sub = orb_subscribe(ORB_ID(vehicle_global_position));
|
||||
fds[fdsc_count].fd = subs.global_pos_sub;
|
||||
fds[fdsc_count].events = POLLIN;
|
||||
fdsc_count++;
|
||||
|
||||
/* --- VICON POSITION --- */
|
||||
/* subscribe to ORB for vicon position */
|
||||
subs.vicon_pos_sub = orb_subscribe(ORB_ID(vehicle_vicon_position));
|
||||
fds[fdsc_count].fd = subs.vicon_pos_sub;
|
||||
fds[fdsc_count].events = POLLIN;
|
||||
fdsc_count++;
|
||||
|
||||
/* --- FLOW measurements --- */
|
||||
/* subscribe to ORB for flow measurements */
|
||||
subs.flow_sub = orb_subscribe(ORB_ID(optical_flow));
|
||||
fds[fdsc_count].fd = subs.flow_sub;
|
||||
fds[fdsc_count].events = POLLIN;
|
||||
fdsc_count++;
|
||||
|
||||
/* --- BATTERY STATUS --- */
|
||||
/* subscribe to ORB for flow measurements */
|
||||
subs.batt_sub = orb_subscribe(ORB_ID(battery_status));
|
||||
fds[fdsc_count].fd = subs.batt_sub;
|
||||
fds[fdsc_count].events = POLLIN;
|
||||
fdsc_count++;
|
||||
|
||||
/* --- DIFFERENTIAL PRESSURE --- */
|
||||
/* subscribe to ORB for flow measurements */
|
||||
subs.diff_pres_sub = orb_subscribe(ORB_ID(differential_pressure));
|
||||
fds[fdsc_count].fd = subs.diff_pres_sub;
|
||||
fds[fdsc_count].events = POLLIN;
|
||||
fdsc_count++;
|
||||
|
||||
/* --- AIRSPEED --- */
|
||||
/* subscribe to ORB for airspeed */
|
||||
subs.airspeed_sub = orb_subscribe(ORB_ID(airspeed));
|
||||
fds[fdsc_count].fd = subs.airspeed_sub;
|
||||
fds[fdsc_count].events = POLLIN;
|
||||
fdsc_count++;
|
||||
|
||||
/* WARNING: If you get the error message below,
|
||||
* then the number of registered messages (fdsc)
|
||||
* differs from the number of messages in the above list.
|
||||
*/
|
||||
if (fdsc_count > fdsc) {
|
||||
warn("WARNING: Not enough space for poll fds allocated. Check %s:%d.\n", __FILE__, __LINE__);
|
||||
fdsc_count = fdsc;
|
||||
}
|
||||
|
||||
/*
|
||||
* set up poll to block for new data,
|
||||
* wait for a maximum of 1000 ms (1 second)
|
||||
*/
|
||||
// const int timeout = 1000;
|
||||
|
||||
thread_running = true;
|
||||
|
||||
/* initialize log buffer with specified size */
|
||||
sdlog2_logbuffer_init(&lb, LOG_BUFFER_SIZE);
|
||||
|
||||
/* initialize thread synchronization */
|
||||
pthread_mutex_init(&logbuffer_mutex, NULL);
|
||||
pthread_cond_init(&logbuffer_cond, NULL);
|
||||
|
||||
/* start logbuffer emptying thread */
|
||||
pthread_t logwriter_pthread = sdlog2_logwriter_start(&lb);
|
||||
|
||||
starttime = hrt_absolute_time();
|
||||
|
||||
/* track skipping */
|
||||
int skip_count = 0;
|
||||
|
||||
while (!thread_should_exit) {
|
||||
|
||||
/* poll all topics */
|
||||
int poll_ret = poll(fds, 4, 1000);
|
||||
|
||||
/* handle the poll result */
|
||||
if (poll_ret == 0) {
|
||||
/* XXX this means none of our providers is giving us data - might be an error? */
|
||||
} else if (poll_ret < 0) {
|
||||
/* XXX this is seriously bad - should be an emergency */
|
||||
} else {
|
||||
|
||||
int ifds = 0;
|
||||
|
||||
if (!logging_enabled) {
|
||||
usleep(100000);
|
||||
continue;
|
||||
}
|
||||
|
||||
pthread_mutex_lock(&logbuffer_mutex);
|
||||
|
||||
/* write time stamp message */
|
||||
log_msg.msg_type = LOG_TS_MSG;
|
||||
log_msg.body.log_TS.t = hrt_absolute_time();
|
||||
sdlog2_logbuffer_write(&lb, &log_msg, LOG_PACKET_SIZE(TS));
|
||||
|
||||
/* --- VEHICLE COMMAND VALUE --- */
|
||||
if (fds[ifds++].revents & POLLIN) {
|
||||
/* copy command into local buffer */
|
||||
orb_copy(ORB_ID(vehicle_command), subs.cmd_sub, &buf.cmd);
|
||||
handle_command(&buf.cmd);
|
||||
}
|
||||
|
||||
/* --- GPS POSITION --- */
|
||||
if (fds[ifds++].revents & POLLIN) {
|
||||
orb_copy(ORB_ID(vehicle_gps_position), subs.gps_pos_sub, &buf.gps_pos);
|
||||
}
|
||||
|
||||
/* --- SENSORS RAW VALUE --- */
|
||||
if (fds[ifds++].revents & POLLIN) {
|
||||
orb_copy(ORB_ID(sensor_combined), subs.sensor_sub, &buf.raw);
|
||||
log_msg.msg_type = LOG_RAW_MSG;
|
||||
log_msg.body.log_RAW.accX = buf.raw.accelerometer_m_s2[0];
|
||||
log_msg.body.log_RAW.accY = buf.raw.accelerometer_m_s2[1];
|
||||
log_msg.body.log_RAW.accZ = buf.raw.accelerometer_m_s2[2];
|
||||
sdlog2_logbuffer_write(&lb, &log_msg, LOG_PACKET_SIZE(RAW));
|
||||
}
|
||||
|
||||
/* --- ATTITUDE VALUE --- */
|
||||
if (fds[ifds++].revents & POLLIN) {
|
||||
orb_copy(ORB_ID(vehicle_attitude), subs.att_sub, &buf.att);
|
||||
log_msg.msg_type = LOG_ATT_MSG;
|
||||
log_msg.body.log_ATT.roll = buf.att.roll;
|
||||
log_msg.body.log_ATT.pitch = buf.att.pitch;
|
||||
log_msg.body.log_ATT.yaw = buf.att.yaw;
|
||||
sdlog2_logbuffer_write(&lb, &log_msg, LOG_PACKET_SIZE(ATT));
|
||||
}
|
||||
|
||||
/* --- ATTITUDE SETPOINT VALUE --- */
|
||||
if (fds[ifds++].revents & POLLIN) {
|
||||
orb_copy(ORB_ID(vehicle_attitude_setpoint), subs.att_sp_sub, &buf.att_sp);
|
||||
// TODO not implemented yet
|
||||
}
|
||||
|
||||
/* --- ACTUATOR OUTPUTS --- */
|
||||
if (fds[ifds++].revents & POLLIN) {
|
||||
orb_copy(ORB_ID(vehicle_gps_position), subs.gps_pos_sub, &buf.gps_pos);
|
||||
// TODO not implemented yet
|
||||
}
|
||||
|
||||
/* --- ACTUATOR CONTROL VALUE --- */
|
||||
if (fds[ifds++].revents & POLLIN) {
|
||||
orb_copy(ORB_ID(vehicle_gps_position), subs.gps_pos_sub, &buf.gps_pos);
|
||||
// TODO not implemented yet
|
||||
}
|
||||
|
||||
/* --- ACTUATOR CONTROL EFFECTIVE VALUE --- */
|
||||
if (fds[ifds++].revents & POLLIN) {
|
||||
orb_copy(ORB_ID(vehicle_gps_position), subs.gps_pos_sub, &buf.gps_pos);
|
||||
// TODO not implemented yet
|
||||
}
|
||||
|
||||
/* --- LOCAL POSITION --- */
|
||||
if (fds[ifds++].revents & POLLIN) {
|
||||
orb_copy(ORB_ID(vehicle_gps_position), subs.gps_pos_sub, &buf.gps_pos);
|
||||
// TODO not implemented yet
|
||||
}
|
||||
|
||||
/* --- GLOBAL POSITION --- */
|
||||
if (fds[ifds++].revents & POLLIN) {
|
||||
orb_copy(ORB_ID(vehicle_gps_position), subs.gps_pos_sub, &buf.gps_pos);
|
||||
// TODO not implemented yet
|
||||
}
|
||||
|
||||
/* --- VICON POSITION --- */
|
||||
if (fds[ifds++].revents & POLLIN) {
|
||||
orb_copy(ORB_ID(vehicle_gps_position), subs.gps_pos_sub, &buf.gps_pos);
|
||||
// TODO not implemented yet
|
||||
}
|
||||
|
||||
/* --- FLOW measurements --- */
|
||||
if (fds[ifds++].revents & POLLIN) {
|
||||
orb_copy(ORB_ID(vehicle_gps_position), subs.gps_pos_sub, &buf.gps_pos);
|
||||
// TODO not implemented yet
|
||||
}
|
||||
|
||||
/* --- BATTERY STATUS --- */
|
||||
if (fds[ifds++].revents & POLLIN) {
|
||||
orb_copy(ORB_ID(vehicle_gps_position), subs.gps_pos_sub, &buf.gps_pos);
|
||||
// TODO not implemented yet
|
||||
}
|
||||
|
||||
/* --- DIFFERENTIAL PRESSURE --- */
|
||||
if (fds[ifds++].revents & POLLIN) {
|
||||
orb_copy(ORB_ID(vehicle_gps_position), subs.gps_pos_sub, &buf.gps_pos);
|
||||
// TODO not implemented yet
|
||||
}
|
||||
|
||||
/* --- AIRSPEED --- */
|
||||
if (fds[ifds++].revents & POLLIN) {
|
||||
orb_copy(ORB_ID(vehicle_gps_position), subs.gps_pos_sub, &buf.gps_pos);
|
||||
// TODO not implemented yet
|
||||
}
|
||||
|
||||
/* signal the other thread new data, but not yet unlock */
|
||||
if (sdlog2_logbuffer_count(&lb) > (lb.size / 2)) {
|
||||
/* only request write if several packets can be written at once */
|
||||
pthread_cond_signal(&logbuffer_cond);
|
||||
}
|
||||
|
||||
/* unlock, now the writer thread may run */
|
||||
pthread_mutex_unlock(&logbuffer_mutex);
|
||||
}
|
||||
}
|
||||
|
||||
print_sdlog2_status();
|
||||
|
||||
/* wake up write thread one last time */
|
||||
pthread_mutex_lock(&logbuffer_mutex);
|
||||
pthread_cond_signal(&logbuffer_cond);
|
||||
/* unlock, now the writer thread may return */
|
||||
pthread_mutex_unlock(&logbuffer_mutex);
|
||||
|
||||
/* wait for write thread to return */
|
||||
(void)pthread_join(logwriter_pthread, NULL);
|
||||
|
||||
pthread_mutex_destroy(&logbuffer_mutex);
|
||||
pthread_cond_destroy(&logbuffer_cond);
|
||||
|
||||
warnx("exiting.\n\n");
|
||||
|
||||
thread_running = false;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
void print_sdlog2_status()
|
||||
{
|
||||
float mebibytes = log_bytes_written / 1024.0f / 1024.0f;
|
||||
float seconds = ((float)(hrt_absolute_time() - starttime)) / 1000000.0f;
|
||||
|
||||
warnx("wrote %4.2f MiB (average %5.3f MiB/s).\n", (double)mebibytes, (double)(mebibytes / seconds));
|
||||
}
|
||||
|
||||
/**
|
||||
* @return 0 if file exists
|
||||
*/
|
||||
int file_exist(const char *filename)
|
||||
{
|
||||
struct stat buffer;
|
||||
return stat(filename, &buffer);
|
||||
}
|
||||
|
||||
int file_copy(const char *file_old, const char *file_new)
|
||||
{
|
||||
FILE *source, *target;
|
||||
source = fopen(file_old, "r");
|
||||
int ret = 0;
|
||||
|
||||
if (source == NULL) {
|
||||
warnx("failed opening input file to copy");
|
||||
return 1;
|
||||
}
|
||||
|
||||
target = fopen(file_new, "w");
|
||||
|
||||
if (target == NULL) {
|
||||
fclose(source);
|
||||
warnx("failed to open output file to copy");
|
||||
return 1;
|
||||
}
|
||||
|
||||
char buf[128];
|
||||
int nread;
|
||||
|
||||
while ((nread = fread(buf, 1, sizeof(buf), source)) > 0) {
|
||||
ret = fwrite(buf, 1, nread, target);
|
||||
|
||||
if (ret <= 0) {
|
||||
warnx("error writing file");
|
||||
ret = 1;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
fsync(fileno(target));
|
||||
|
||||
fclose(source);
|
||||
fclose(target);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
void handle_command(struct vehicle_command_s *cmd)
|
||||
{
|
||||
/* result of the command */
|
||||
uint8_t result = VEHICLE_CMD_RESULT_UNSUPPORTED;
|
||||
|
||||
/* request to set different system mode */
|
||||
switch (cmd->command) {
|
||||
|
||||
case VEHICLE_CMD_PREFLIGHT_STORAGE:
|
||||
|
||||
if (((int)(cmd->param3)) == 1) {
|
||||
|
||||
/* enable logging */
|
||||
mavlink_log_info(mavlink_fd, "[log] file:");
|
||||
mavlink_log_info(mavlink_fd, "logdir");
|
||||
logging_enabled = true;
|
||||
}
|
||||
|
||||
if (((int)(cmd->param3)) == 0) {
|
||||
|
||||
/* disable logging */
|
||||
mavlink_log_info(mavlink_fd, "[log] stopped.");
|
||||
logging_enabled = false;
|
||||
}
|
||||
|
||||
break;
|
||||
|
||||
default:
|
||||
/* silently ignore */
|
||||
break;
|
||||
}
|
||||
|
||||
}
|
|
@ -0,0 +1,98 @@
|
|||
/****************************************************************************
|
||||
*
|
||||
* Copyright (c) 2013 PX4 Development Team. All rights reserved.
|
||||
* Author: Anton Babushkin <rk3dov@gmail.com>
|
||||
*
|
||||
* 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 sdlog2_format.h
|
||||
*
|
||||
* General log format structures and macro.
|
||||
*
|
||||
* @author Anton Babushkin <rk3dov@gmail.com>
|
||||
*/
|
||||
|
||||
/*
|
||||
Format characters in the format string for binary log messages
|
||||
b : int8_t
|
||||
B : uint8_t
|
||||
h : int16_t
|
||||
H : uint16_t
|
||||
i : int32_t
|
||||
I : uint32_t
|
||||
f : float
|
||||
n : char[4]
|
||||
N : char[16]
|
||||
Z : char[64]
|
||||
c : int16_t * 100
|
||||
C : uint16_t * 100
|
||||
e : int32_t * 100
|
||||
E : uint32_t * 100
|
||||
L : int32_t latitude/longitude
|
||||
M : uint8_t flight mode
|
||||
|
||||
q : int64_t
|
||||
Q : uint64_t
|
||||
*/
|
||||
|
||||
#ifndef SDLOG2_FORMAT_H_
|
||||
#define SDLOG2_FORMAT_H_
|
||||
|
||||
#define LOG_PACKET_HEADER_LEN 3
|
||||
#define LOG_PACKET_HEADER uint8_t head1, head2, msg_type;
|
||||
#define LOG_PACKET_HEADER_INIT(id) .head1 = HEAD_BYTE1, .head2 = HEAD_BYTE2, .msg_type = id
|
||||
|
||||
// once the logging code is all converted we will remove these from
|
||||
// this header
|
||||
#define HEAD_BYTE1 0xA3 // Decimal 163
|
||||
#define HEAD_BYTE2 0x95 // Decimal 149
|
||||
|
||||
struct log_format_s {
|
||||
uint8_t type;
|
||||
uint8_t length;
|
||||
char name[4];
|
||||
char format[16];
|
||||
char labels[64];
|
||||
};
|
||||
|
||||
#define LOG_FORMAT(_name, _format, _labels) { \
|
||||
.type = LOG_##_name##_MSG, \
|
||||
.length = sizeof(struct log_##_name##_s) + 8, \
|
||||
.name = #_name, \
|
||||
.format = _format, \
|
||||
.labels = _labels \
|
||||
}
|
||||
|
||||
#define LOG_FORMAT_MSG 128
|
||||
|
||||
#define LOG_PACKET_SIZE(_name) LOG_PACKET_HEADER_LEN + sizeof(log_msg.body.log_##_name)
|
||||
|
||||
#endif /* SDLOG2_FORMAT_H_ */
|
|
@ -0,0 +1,82 @@
|
|||
/****************************************************************************
|
||||
*
|
||||
* Copyright (c) 2013 PX4 Development Team. All rights reserved.
|
||||
* Author: Anton Babushkin <rk3dov@gmail.com>
|
||||
*
|
||||
* 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 sdlog2_messages.h
|
||||
*
|
||||
* Log messages and structures definition.
|
||||
*
|
||||
* @author Anton Babushkin <rk3dov@gmail.com>
|
||||
*/
|
||||
|
||||
#ifndef SDLOG2_MESSAGES_H_
|
||||
#define SDLOG2_MESSAGES_H_
|
||||
|
||||
#include "sdlog2_format.h"
|
||||
|
||||
/* define message formats */
|
||||
|
||||
/* === 1: TS - TIME STAMP === */
|
||||
#define LOG_TS_MSG 1
|
||||
struct log_TS_s {
|
||||
uint64_t t;
|
||||
};
|
||||
|
||||
/* === 2: ATT - ATTITUDE === */
|
||||
#define LOG_ATT_MSG 2
|
||||
struct log_ATT_s {
|
||||
float roll;
|
||||
float pitch;
|
||||
float yaw;
|
||||
};
|
||||
|
||||
/* === 3: RAW - SENSORS === */
|
||||
#define LOG_RAW_MSG 3
|
||||
struct log_RAW_s {
|
||||
float accX;
|
||||
float accY;
|
||||
float accZ;
|
||||
};
|
||||
|
||||
/* construct list of all message formats */
|
||||
|
||||
static const struct log_format_s log_formats[] = {
|
||||
LOG_FORMAT(TS, "Q", "t"),
|
||||
LOG_FORMAT(ATT, "fff", "roll,pitch,yaw"),
|
||||
LOG_FORMAT(RAW, "fff", "accX,accY,accZ"),
|
||||
};
|
||||
|
||||
static const int log_formats_num = sizeof(log_formats) / sizeof(struct log_format_s);
|
||||
|
||||
#endif /* SDLOG2_MESSAGES_H_ */
|
|
@ -0,0 +1,141 @@
|
|||
/****************************************************************************
|
||||
*
|
||||
* Copyright (c) 2013 PX4 Development Team. All rights reserved.
|
||||
* Author: Anton Babushkin <rk3dov@gmail.com>
|
||||
*
|
||||
* 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 sdlog2_ringbuffer.c
|
||||
*
|
||||
* Ring FIFO buffer for binary data.
|
||||
*
|
||||
* @author Anton Babushkin <rk3dov@gmail.com>
|
||||
*/
|
||||
|
||||
#include <string.h>
|
||||
#include <stdlib.h>
|
||||
|
||||
#include "sdlog2_ringbuffer.h"
|
||||
|
||||
void sdlog2_logbuffer_init(struct sdlog2_logbuffer *lb, int size)
|
||||
{
|
||||
lb->size = size;
|
||||
lb->write_ptr = 0;
|
||||
lb->read_ptr = 0;
|
||||
lb->data = malloc(lb->size);
|
||||
}
|
||||
|
||||
int sdlog2_logbuffer_free(struct sdlog2_logbuffer *lb)
|
||||
{
|
||||
int n = lb->read_ptr - lb->write_ptr - 1;
|
||||
|
||||
if (n < 0) {
|
||||
n += lb->size;
|
||||
}
|
||||
|
||||
return n;
|
||||
}
|
||||
|
||||
int sdlog2_logbuffer_count(struct sdlog2_logbuffer *lb)
|
||||
{
|
||||
int n = lb->write_ptr - lb->read_ptr;
|
||||
|
||||
if (n < 0) {
|
||||
n += lb->size;
|
||||
}
|
||||
|
||||
return n;
|
||||
}
|
||||
|
||||
int sdlog2_logbuffer_is_empty(struct sdlog2_logbuffer *lb)
|
||||
{
|
||||
return lb->read_ptr == lb->write_ptr;
|
||||
}
|
||||
|
||||
void sdlog2_logbuffer_write(struct sdlog2_logbuffer *lb, void *ptr, int size)
|
||||
{
|
||||
// bytes available to write
|
||||
int available = lb->read_ptr - lb->write_ptr - 1;
|
||||
|
||||
if (available < 0)
|
||||
available += lb->size;
|
||||
|
||||
if (size > available) {
|
||||
// buffer overflow
|
||||
return;
|
||||
}
|
||||
|
||||
char *c = (char *) ptr;
|
||||
int n = lb->size - lb->write_ptr; // bytes to end of the buffer
|
||||
|
||||
if (n < size) {
|
||||
// message goes over end of the buffer
|
||||
memcpy(&(lb->data[lb->write_ptr]), c, n);
|
||||
lb->write_ptr = 0;
|
||||
|
||||
} else {
|
||||
n = 0;
|
||||
}
|
||||
|
||||
// now: n = bytes already written
|
||||
int p = size - n; // number of bytes to write
|
||||
memcpy(&(lb->data[lb->write_ptr]), &(c[n]), p);
|
||||
lb->write_ptr = (lb->write_ptr + p) % lb->size;
|
||||
}
|
||||
|
||||
int sdlog2_logbuffer_get_ptr(struct sdlog2_logbuffer *lb, void **ptr)
|
||||
{
|
||||
// bytes available to read
|
||||
int available = lb->write_ptr - lb->read_ptr;
|
||||
|
||||
if (available == 0) {
|
||||
return 0; // buffer is empty
|
||||
}
|
||||
|
||||
int n = 0;
|
||||
|
||||
if (available > 0) {
|
||||
// read pointer is before write pointer, write all available bytes
|
||||
n = available;
|
||||
|
||||
} else {
|
||||
// read pointer is after write pointer, write bytes from read_ptr to end
|
||||
n = lb->size - lb->read_ptr;
|
||||
}
|
||||
|
||||
*ptr = &(lb->data[lb->read_ptr]);
|
||||
return n;
|
||||
}
|
||||
|
||||
void sdlog2_logbuffer_mark_read(struct sdlog2_logbuffer *lb, int n)
|
||||
{
|
||||
lb->read_ptr = (lb->read_ptr + n) % lb->size;
|
||||
}
|
|
@ -0,0 +1,68 @@
|
|||
/****************************************************************************
|
||||
*
|
||||
* Copyright (c) 2013 PX4 Development Team. All rights reserved.
|
||||
* Author: Anton Babushkin <rk3dov@gmail.com>
|
||||
*
|
||||
* 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 sdlog2_ringbuffer.h
|
||||
*
|
||||
* Ring FIFO buffer for binary data.
|
||||
*
|
||||
* @author Anton Babushkin <rk3dov@gmail.com>
|
||||
*/
|
||||
|
||||
#ifndef SDLOG2_RINGBUFFER_H_
|
||||
#define SDLOG2_RINGBUFFER_H_
|
||||
|
||||
struct sdlog2_logbuffer {
|
||||
// all pointers are in bytes
|
||||
int write_ptr;
|
||||
int read_ptr;
|
||||
int size;
|
||||
char *data;
|
||||
};
|
||||
|
||||
void sdlog2_logbuffer_init(struct sdlog2_logbuffer *lb, int size);
|
||||
|
||||
int sdlog2_logbuffer_free(struct sdlog2_logbuffer *lb);
|
||||
|
||||
int sdlog2_logbuffer_count(struct sdlog2_logbuffer *lb);
|
||||
|
||||
int sdlog2_logbuffer_is_empty(struct sdlog2_logbuffer *lb);
|
||||
|
||||
void sdlog2_logbuffer_write(struct sdlog2_logbuffer *lb, void *ptr, int size);
|
||||
|
||||
int sdlog2_logbuffer_get_ptr(struct sdlog2_logbuffer *lb, void **ptr);
|
||||
|
||||
void sdlog2_logbuffer_mark_read(struct sdlog2_logbuffer *lb, int n);
|
||||
|
||||
#endif
|
Loading…
Reference in New Issue