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author | Lorenz Meier <lm@inf.ethz.ch> | 2013-04-27 13:16:24 +0200 |
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committer | Lorenz Meier <lm@inf.ethz.ch> | 2013-04-27 13:16:24 +0200 |
commit | c89f46f59055f4cc0d7ada4a26e48f021278538e (patch) | |
tree | fad5468553562db5c41bdcd0ff407e42fde31c78 /apps/sensors/sensors.cpp | |
parent | e6ed8268ee610d0b9e9b4930ad379a6d7dcc3629 (diff) | |
download | px4-firmware-c89f46f59055f4cc0d7ada4a26e48f021278538e.tar.gz px4-firmware-c89f46f59055f4cc0d7ada4a26e48f021278538e.tar.bz2 px4-firmware-c89f46f59055f4cc0d7ada4a26e48f021278538e.zip |
Moved sensors app to new world
Diffstat (limited to 'apps/sensors/sensors.cpp')
-rw-r--r-- | apps/sensors/sensors.cpp | 1470 |
1 files changed, 0 insertions, 1470 deletions
diff --git a/apps/sensors/sensors.cpp b/apps/sensors/sensors.cpp deleted file mode 100644 index 123bbb120..000000000 --- a/apps/sensors/sensors.cpp +++ /dev/null @@ -1,1470 +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 sensors.cpp - * Sensor readout process. - * - * @author Lorenz Meier <lm@inf.ethz.ch> - */ - -#include <nuttx/config.h> - -#include <fcntl.h> -#include <poll.h> -#include <unistd.h> -#include <stdlib.h> -#include <string.h> -#include <stdbool.h> -#include <stdio.h> -#include <errno.h> -#include <math.h> - -#include <nuttx/analog/adc.h> - -#include <drivers/drv_hrt.h> -#include <drivers/drv_accel.h> -#include <drivers/drv_gyro.h> -#include <drivers/drv_mag.h> -#include <drivers/drv_baro.h> -#include <drivers/drv_rc_input.h> -#include <drivers/drv_adc.h> - -#include <systemlib/systemlib.h> -#include <systemlib/param/param.h> -#include <systemlib/err.h> -#include <systemlib/perf_counter.h> - -#include <systemlib/ppm_decode.h> -#include <systemlib/airspeed.h> - -#include <uORB/uORB.h> -#include <uORB/topics/sensor_combined.h> -#include <uORB/topics/rc_channels.h> -#include <uORB/topics/manual_control_setpoint.h> -#include <uORB/topics/vehicle_status.h> -#include <uORB/topics/parameter_update.h> -#include <uORB/topics/battery_status.h> -#include <uORB/topics/differential_pressure.h> - -#define GYRO_HEALTH_COUNTER_LIMIT_ERROR 20 /* 40 ms downtime at 500 Hz update rate */ -#define ACC_HEALTH_COUNTER_LIMIT_ERROR 20 /* 40 ms downtime at 500 Hz update rate */ -#define MAGN_HEALTH_COUNTER_LIMIT_ERROR 100 /* 1000 ms downtime at 100 Hz update rate */ -#define BARO_HEALTH_COUNTER_LIMIT_ERROR 50 /* 500 ms downtime at 100 Hz update rate */ -#define ADC_HEALTH_COUNTER_LIMIT_ERROR 10 /* 100 ms downtime at 100 Hz update rate */ - -#define GYRO_HEALTH_COUNTER_LIMIT_OK 5 -#define ACC_HEALTH_COUNTER_LIMIT_OK 5 -#define MAGN_HEALTH_COUNTER_LIMIT_OK 5 -#define BARO_HEALTH_COUNTER_LIMIT_OK 5 -#define ADC_HEALTH_COUNTER_LIMIT_OK 5 - -#define ADC_BATTERY_VOLTAGE_CHANNEL 10 -#define ADC_AIRSPEED_VOLTAGE_CHANNEL 11 - -#define BAT_VOL_INITIAL 0.f -#define BAT_VOL_LOWPASS_1 0.99f -#define BAT_VOL_LOWPASS_2 0.01f -#define VOLTAGE_BATTERY_IGNORE_THRESHOLD_VOLTS 3.5f - -#define PPM_INPUT_TIMEOUT_INTERVAL 50000 /**< 50 ms timeout / 20 Hz */ - -#define limit_minus_one_to_one(arg) (arg < -1.0f) ? -1.0f : ((arg > 1.0f) ? 1.0f : arg) - -/** - * Sensor app start / stop handling function - * - * @ingroup apps - */ -extern "C" __EXPORT int sensors_main(int argc, char *argv[]); - -class Sensors -{ -public: - /** - * Constructor - */ - Sensors(); - - /** - * Destructor, also kills the sensors task. - */ - ~Sensors(); - - /** - * Start the sensors task. - * - * @return OK on success. - */ - int start(); - -private: - static const unsigned _rc_max_chan_count = RC_CHANNELS_MAX; /**< maximum number of r/c channels we handle */ - -#if CONFIG_HRT_PPM - hrt_abstime _ppm_last_valid; /**< last time we got a valid ppm signal */ - - /** - * Gather and publish PPM input data. - */ - void ppm_poll(); -#endif - - /* XXX should not be here - should be own driver */ - int _fd_adc; /**< ADC driver handle */ - hrt_abstime _last_adc; /**< last time we took input from the ADC */ - - bool _task_should_exit; /**< if true, sensor task should exit */ - int _sensors_task; /**< task handle for sensor task */ - - bool _hil_enabled; /**< if true, HIL is active */ - bool _publishing; /**< if true, we are publishing sensor data */ - - int _gyro_sub; /**< raw gyro data subscription */ - int _accel_sub; /**< raw accel data subscription */ - int _mag_sub; /**< raw mag data subscription */ - int _rc_sub; /**< raw rc channels data subscription */ - int _baro_sub; /**< raw baro data subscription */ - int _vstatus_sub; /**< vehicle status subscription */ - int _params_sub; /**< notification of parameter updates */ - int _manual_control_sub; /**< notification of manual control updates */ - - orb_advert_t _sensor_pub; /**< combined sensor data topic */ - orb_advert_t _manual_control_pub; /**< manual control signal topic */ - orb_advert_t _rc_pub; /**< raw r/c control topic */ - orb_advert_t _battery_pub; /**< battery status */ - orb_advert_t _airspeed_pub; /**< airspeed */ - - perf_counter_t _loop_perf; /**< loop performance counter */ - - struct rc_channels_s _rc; /**< r/c channel data */ - struct battery_status_s _battery_status; /**< battery status */ - struct baro_report _barometer; /**< barometer data */ - struct differential_pressure_s _differential_pressure; - - struct { - float min[_rc_max_chan_count]; - float trim[_rc_max_chan_count]; - float max[_rc_max_chan_count]; - float rev[_rc_max_chan_count]; - float dz[_rc_max_chan_count]; - // float ex[_rc_max_chan_count]; - float scaling_factor[_rc_max_chan_count]; - - float gyro_offset[3]; - float mag_offset[3]; - float mag_scale[3]; - float accel_offset[3]; - float accel_scale[3]; - float airspeed_offset; - - int rc_type; - - int rc_map_roll; - int rc_map_pitch; - int rc_map_yaw; - int rc_map_throttle; - - int rc_map_manual_override_sw; - int rc_map_auto_mode_sw; - - int rc_map_manual_mode_sw; - int rc_map_sas_mode_sw; - int rc_map_rtl_sw; - int rc_map_offboard_ctrl_mode_sw; - - int rc_map_flaps; - - int rc_map_aux1; - int rc_map_aux2; - int rc_map_aux3; - int rc_map_aux4; - int rc_map_aux5; - - float rc_scale_roll; - float rc_scale_pitch; - float rc_scale_yaw; - float rc_scale_flaps; - - float battery_voltage_scaling; - } _parameters; /**< local copies of interesting parameters */ - - struct { - param_t min[_rc_max_chan_count]; - param_t trim[_rc_max_chan_count]; - param_t max[_rc_max_chan_count]; - param_t rev[_rc_max_chan_count]; - param_t dz[_rc_max_chan_count]; - // param_t ex[_rc_max_chan_count]; - param_t rc_type; - - param_t rc_demix; - - param_t gyro_offset[3]; - param_t accel_offset[3]; - param_t accel_scale[3]; - param_t mag_offset[3]; - param_t mag_scale[3]; - param_t airspeed_offset; - - param_t rc_map_roll; - param_t rc_map_pitch; - param_t rc_map_yaw; - param_t rc_map_throttle; - - param_t rc_map_manual_override_sw; - param_t rc_map_auto_mode_sw; - - param_t rc_map_manual_mode_sw; - param_t rc_map_sas_mode_sw; - param_t rc_map_rtl_sw; - param_t rc_map_offboard_ctrl_mode_sw; - - param_t rc_map_flaps; - - param_t rc_map_aux1; - param_t rc_map_aux2; - param_t rc_map_aux3; - param_t rc_map_aux4; - param_t rc_map_aux5; - - param_t rc_scale_roll; - param_t rc_scale_pitch; - param_t rc_scale_yaw; - param_t rc_scale_flaps; - - param_t battery_voltage_scaling; - } _parameter_handles; /**< handles for interesting parameters */ - - - /** - * Update our local parameter cache. - */ - int parameters_update(); - - /** - * Do accel-related initialisation. - */ - void accel_init(); - - /** - * Do gyro-related initialisation. - */ - void gyro_init(); - - /** - * Do mag-related initialisation. - */ - void mag_init(); - - /** - * Do baro-related initialisation. - */ - void baro_init(); - - /** - * Do adc-related initialisation. - */ - void adc_init(); - - /** - * Poll the accelerometer for updated data. - * - * @param raw Combined sensor data structure into which - * data should be returned. - */ - void accel_poll(struct sensor_combined_s &raw); - - /** - * Poll the gyro for updated data. - * - * @param raw Combined sensor data structure into which - * data should be returned. - */ - void gyro_poll(struct sensor_combined_s &raw); - - /** - * Poll the magnetometer for updated data. - * - * @param raw Combined sensor data structure into which - * data should be returned. - */ - void mag_poll(struct sensor_combined_s &raw); - - /** - * Poll the barometer for updated data. - * - * @param raw Combined sensor data structure into which - * data should be returned. - */ - void baro_poll(struct sensor_combined_s &raw); - - /** - * Check for changes in vehicle status. - */ - void vehicle_status_poll(); - - /** - * Check for changes in parameters. - */ - void parameter_update_poll(bool forced = false); - - /** - * Poll the ADC and update readings to suit. - * - * @param raw Combined sensor data structure into which - * data should be returned. - */ - void adc_poll(struct sensor_combined_s &raw); - - /** - * Shim for calling task_main from task_create. - */ - static void task_main_trampoline(int argc, char *argv[]); - - /** - * Main sensor collection task. - */ - void task_main() __attribute__((noreturn)); -}; - -namespace sensors -{ - -/* oddly, ERROR is not defined for c++ */ -#ifdef ERROR -# undef ERROR -#endif -static const int ERROR = -1; - -Sensors *g_sensors; -} - -Sensors::Sensors() : -#ifdef CONFIG_HRT_PPM - _ppm_last_valid(0), -#endif - - _fd_adc(-1), - _last_adc(0), - - _task_should_exit(false), - _sensors_task(-1), - _hil_enabled(false), - _publishing(true), - -/* subscriptions */ - _gyro_sub(-1), - _accel_sub(-1), - _mag_sub(-1), - _rc_sub(-1), - _baro_sub(-1), - _vstatus_sub(-1), - _params_sub(-1), - _manual_control_sub(-1), - -/* publications */ - _sensor_pub(-1), - _manual_control_pub(-1), - _rc_pub(-1), - _battery_pub(-1), - _airspeed_pub(-1), - -/* performance counters */ - _loop_perf(perf_alloc(PC_ELAPSED, "sensor task update")) -{ - - /* basic r/c parameters */ - for (unsigned i = 0; i < _rc_max_chan_count; i++) { - char nbuf[16]; - - /* min values */ - sprintf(nbuf, "RC%d_MIN", i + 1); - _parameter_handles.min[i] = param_find(nbuf); - - /* trim values */ - sprintf(nbuf, "RC%d_TRIM", i + 1); - _parameter_handles.trim[i] = param_find(nbuf); - - /* max values */ - sprintf(nbuf, "RC%d_MAX", i + 1); - _parameter_handles.max[i] = param_find(nbuf); - - /* channel reverse */ - sprintf(nbuf, "RC%d_REV", i + 1); - _parameter_handles.rev[i] = param_find(nbuf); - - /* channel deadzone */ - sprintf(nbuf, "RC%d_DZ", i + 1); - _parameter_handles.dz[i] = param_find(nbuf); - - } - - _parameter_handles.rc_type = param_find("RC_TYPE"); - - /* mandatory input switched, mapped to channels 1-4 per default */ - _parameter_handles.rc_map_roll = param_find("RC_MAP_ROLL"); - _parameter_handles.rc_map_pitch = param_find("RC_MAP_PITCH"); - _parameter_handles.rc_map_yaw = param_find("RC_MAP_YAW"); - _parameter_handles.rc_map_throttle = param_find("RC_MAP_THROTTLE"); - - /* mandatory mode switches, mapped to channel 5 and 6 per default */ - _parameter_handles.rc_map_manual_override_sw = param_find("RC_MAP_OVER_SW"); - _parameter_handles.rc_map_auto_mode_sw = param_find("RC_MAP_MODE_SW"); - - _parameter_handles.rc_map_flaps = param_find("RC_MAP_FLAPS"); - - /* optional mode switches, not mapped per default */ - _parameter_handles.rc_map_manual_mode_sw = param_find("RC_MAP_MAN_SW"); - _parameter_handles.rc_map_sas_mode_sw = param_find("RC_MAP_SAS_SW"); - _parameter_handles.rc_map_rtl_sw = param_find("RC_MAP_RTL_SW"); - _parameter_handles.rc_map_offboard_ctrl_mode_sw = param_find("RC_MAP_OFFB_SW"); - - _parameter_handles.rc_map_aux1 = param_find("RC_MAP_AUX1"); - _parameter_handles.rc_map_aux2 = param_find("RC_MAP_AUX2"); - _parameter_handles.rc_map_aux3 = param_find("RC_MAP_AUX3"); - _parameter_handles.rc_map_aux4 = param_find("RC_MAP_AUX4"); - _parameter_handles.rc_map_aux5 = param_find("RC_MAP_AUX5"); - - _parameter_handles.rc_scale_roll = param_find("RC_SCALE_ROLL"); - _parameter_handles.rc_scale_pitch = param_find("RC_SCALE_PITCH"); - _parameter_handles.rc_scale_yaw = param_find("RC_SCALE_YAW"); - _parameter_handles.rc_scale_flaps = param_find("RC_SCALE_FLAPS"); - - /* gyro offsets */ - _parameter_handles.gyro_offset[0] = param_find("SENS_GYRO_XOFF"); - _parameter_handles.gyro_offset[1] = param_find("SENS_GYRO_YOFF"); - _parameter_handles.gyro_offset[2] = param_find("SENS_GYRO_ZOFF"); - - /* accel offsets */ - _parameter_handles.accel_offset[0] = param_find("SENS_ACC_XOFF"); - _parameter_handles.accel_offset[1] = param_find("SENS_ACC_YOFF"); - _parameter_handles.accel_offset[2] = param_find("SENS_ACC_ZOFF"); - _parameter_handles.accel_scale[0] = param_find("SENS_ACC_XSCALE"); - _parameter_handles.accel_scale[1] = param_find("SENS_ACC_YSCALE"); - _parameter_handles.accel_scale[2] = param_find("SENS_ACC_ZSCALE"); - - /* mag offsets */ - _parameter_handles.mag_offset[0] = param_find("SENS_MAG_XOFF"); - _parameter_handles.mag_offset[1] = param_find("SENS_MAG_YOFF"); - _parameter_handles.mag_offset[2] = param_find("SENS_MAG_ZOFF"); - - _parameter_handles.mag_scale[0] = param_find("SENS_MAG_XSCALE"); - _parameter_handles.mag_scale[1] = param_find("SENS_MAG_YSCALE"); - _parameter_handles.mag_scale[2] = param_find("SENS_MAG_ZSCALE"); - - /*Airspeed offset */ - _parameter_handles.airspeed_offset = param_find("SENS_VAIR_OFF"); - - _parameter_handles.battery_voltage_scaling = param_find("BAT_V_SCALING"); - - /* fetch initial parameter values */ - parameters_update(); -} - -Sensors::~Sensors() -{ - if (_sensors_task != -1) { - - /* task wakes up every 100ms or so at the longest */ - _task_should_exit = true; - - /* wait for a second for the task to quit at our request */ - unsigned i = 0; - - do { - /* wait 20ms */ - usleep(20000); - - /* if we have given up, kill it */ - if (++i > 50) { - task_delete(_sensors_task); - break; - } - } while (_sensors_task != -1); - } - - sensors::g_sensors = nullptr; -} - -int -Sensors::parameters_update() -{ - bool rc_valid = true; - - /* rc values */ - for (unsigned int i = 0; i < RC_CHANNELS_MAX; i++) { - - if (param_get(_parameter_handles.min[i], &(_parameters.min[i])) != OK) { - warnx("Failed getting min for chan %d", i); - } - - if (param_get(_parameter_handles.trim[i], &(_parameters.trim[i])) != OK) { - warnx("Failed getting trim for chan %d", i); - } - - if (param_get(_parameter_handles.max[i], &(_parameters.max[i])) != OK) { - warnx("Failed getting max for chan %d", i); - } - - if (param_get(_parameter_handles.rev[i], &(_parameters.rev[i])) != OK) { - warnx("Failed getting rev for chan %d", i); - } - - if (param_get(_parameter_handles.dz[i], &(_parameters.dz[i])) != OK) { - warnx("Failed getting dead zone for chan %d", i); - } - - _parameters.scaling_factor[i] = (1.0f / ((_parameters.max[i] - _parameters.min[i]) / 2.0f) * _parameters.rev[i]); - - /* handle blowup in the scaling factor calculation */ - if (!isfinite(_parameters.scaling_factor[i]) || - _parameters.scaling_factor[i] * _parameters.rev[i] < 0.000001f || - _parameters.scaling_factor[i] * _parameters.rev[i] > 0.2f) { - - /* scaling factors do not make sense, lock them down */ - _parameters.scaling_factor[i] = 0; - rc_valid = false; - } - - } - - /* handle wrong values */ - if (!rc_valid) - warnx("WARNING WARNING WARNING\n\nRC CALIBRATION NOT SANE!\n\n"); - - /* remote control type */ - if (param_get(_parameter_handles.rc_type, &(_parameters.rc_type)) != OK) { - warnx("Failed getting remote control type"); - } - - /* channel mapping */ - if (param_get(_parameter_handles.rc_map_roll, &(_parameters.rc_map_roll)) != OK) { - warnx("Failed getting roll chan index"); - } - - if (param_get(_parameter_handles.rc_map_pitch, &(_parameters.rc_map_pitch)) != OK) { - warnx("Failed getting pitch chan index"); - } - - if (param_get(_parameter_handles.rc_map_yaw, &(_parameters.rc_map_yaw)) != OK) { - warnx("Failed getting yaw chan index"); - } - - if (param_get(_parameter_handles.rc_map_throttle, &(_parameters.rc_map_throttle)) != OK) { - warnx("Failed getting throttle chan index"); - } - - if (param_get(_parameter_handles.rc_map_manual_override_sw, &(_parameters.rc_map_manual_override_sw)) != OK) { - warnx("Failed getting override sw chan index"); - } - - if (param_get(_parameter_handles.rc_map_auto_mode_sw, &(_parameters.rc_map_auto_mode_sw)) != OK) { - warnx("Failed getting auto mode sw chan index"); - } - - if (param_get(_parameter_handles.rc_map_flaps, &(_parameters.rc_map_flaps)) != OK) { - warnx("Failed getting flaps chan index"); - } - - if (param_get(_parameter_handles.rc_map_manual_mode_sw, &(_parameters.rc_map_manual_mode_sw)) != OK) { - warnx("Failed getting manual mode sw chan index"); - } - - if (param_get(_parameter_handles.rc_map_rtl_sw, &(_parameters.rc_map_rtl_sw)) != OK) { - warnx("Failed getting rtl sw chan index"); - } - - if (param_get(_parameter_handles.rc_map_sas_mode_sw, &(_parameters.rc_map_sas_mode_sw)) != OK) { - warnx("Failed getting sas mode sw chan index"); - } - - if (param_get(_parameter_handles.rc_map_offboard_ctrl_mode_sw, &(_parameters.rc_map_offboard_ctrl_mode_sw)) != OK) { - warnx("Failed getting offboard control mode sw chan index"); - } - - if (param_get(_parameter_handles.rc_map_aux1, &(_parameters.rc_map_aux1)) != OK) { - warnx("Failed getting mode aux 1 index"); - } - - if (param_get(_parameter_handles.rc_map_aux2, &(_parameters.rc_map_aux2)) != OK) { - warnx("Failed getting mode aux 2 index"); - } - - if (param_get(_parameter_handles.rc_map_aux3, &(_parameters.rc_map_aux3)) != OK) { - warnx("Failed getting mode aux 3 index"); - } - - if (param_get(_parameter_handles.rc_map_aux4, &(_parameters.rc_map_aux4)) != OK) { - warnx("Failed getting mode aux 4 index"); - } - - if (param_get(_parameter_handles.rc_map_aux5, &(_parameters.rc_map_aux5)) != OK) { - warnx("Failed getting mode aux 5 index"); - } - - if (param_get(_parameter_handles.rc_scale_roll, &(_parameters.rc_scale_roll)) != OK) { - warnx("Failed getting rc scaling for roll"); - } - - if (param_get(_parameter_handles.rc_scale_pitch, &(_parameters.rc_scale_pitch)) != OK) { - warnx("Failed getting rc scaling for pitch"); - } - - if (param_get(_parameter_handles.rc_scale_yaw, &(_parameters.rc_scale_yaw)) != OK) { - warnx("Failed getting rc scaling for yaw"); - } - - if (param_get(_parameter_handles.rc_scale_flaps, &(_parameters.rc_scale_flaps)) != OK) { - warnx("Failed getting rc scaling for flaps"); - } - - /* update RC function mappings */ - _rc.function[THROTTLE] = _parameters.rc_map_throttle - 1; - _rc.function[ROLL] = _parameters.rc_map_roll - 1; - _rc.function[PITCH] = _parameters.rc_map_pitch - 1; - _rc.function[YAW] = _parameters.rc_map_yaw - 1; - - _rc.function[OVERRIDE] = _parameters.rc_map_manual_override_sw - 1; - _rc.function[AUTO_MODE] = _parameters.rc_map_auto_mode_sw - 1; - - _rc.function[FLAPS] = _parameters.rc_map_flaps - 1; - - _rc.function[MANUAL_MODE] = _parameters.rc_map_manual_mode_sw - 1; - _rc.function[RTL] = _parameters.rc_map_rtl_sw - 1; - _rc.function[SAS_MODE] = _parameters.rc_map_sas_mode_sw - 1; - _rc.function[OFFBOARD_MODE] = _parameters.rc_map_offboard_ctrl_mode_sw - 1; - - _rc.function[AUX_1] = _parameters.rc_map_aux1 - 1; - _rc.function[AUX_2] = _parameters.rc_map_aux2 - 1; - _rc.function[AUX_3] = _parameters.rc_map_aux3 - 1; - _rc.function[AUX_4] = _parameters.rc_map_aux4 - 1; - _rc.function[AUX_5] = _parameters.rc_map_aux5 - 1; - - /* gyro offsets */ - param_get(_parameter_handles.gyro_offset[0], &(_parameters.gyro_offset[0])); - param_get(_parameter_handles.gyro_offset[1], &(_parameters.gyro_offset[1])); - param_get(_parameter_handles.gyro_offset[2], &(_parameters.gyro_offset[2])); - - /* accel offsets */ - param_get(_parameter_handles.accel_offset[0], &(_parameters.accel_offset[0])); - param_get(_parameter_handles.accel_offset[1], &(_parameters.accel_offset[1])); - param_get(_parameter_handles.accel_offset[2], &(_parameters.accel_offset[2])); - param_get(_parameter_handles.accel_scale[0], &(_parameters.accel_scale[0])); - param_get(_parameter_handles.accel_scale[1], &(_parameters.accel_scale[1])); - param_get(_parameter_handles.accel_scale[2], &(_parameters.accel_scale[2])); - - /* mag offsets */ - param_get(_parameter_handles.mag_offset[0], &(_parameters.mag_offset[0])); - param_get(_parameter_handles.mag_offset[1], &(_parameters.mag_offset[1])); - param_get(_parameter_handles.mag_offset[2], &(_parameters.mag_offset[2])); - /* mag scaling */ - param_get(_parameter_handles.mag_scale[0], &(_parameters.mag_scale[0])); - param_get(_parameter_handles.mag_scale[1], &(_parameters.mag_scale[1])); - param_get(_parameter_handles.mag_scale[2], &(_parameters.mag_scale[2])); - - /* Airspeed offset */ - param_get(_parameter_handles.airspeed_offset, &(_parameters.airspeed_offset)); - - /* scaling of ADC ticks to battery voltage */ - if (param_get(_parameter_handles.battery_voltage_scaling, &(_parameters.battery_voltage_scaling)) != OK) { - warnx("Failed updating voltage scaling param"); - } - - return OK; -} - -void -Sensors::accel_init() -{ - int fd; - - fd = open(ACCEL_DEVICE_PATH, 0); - - if (fd < 0) { - warn("%s", ACCEL_DEVICE_PATH); - errx(1, "FATAL: no accelerometer found"); - - } else { - /* set the accel internal sampling rate up to at leat 500Hz */ - ioctl(fd, ACCELIOCSSAMPLERATE, 500); - - /* set the driver to poll at 500Hz */ - ioctl(fd, SENSORIOCSPOLLRATE, 500); - - warnx("using system accel"); - close(fd); - } -} - -void -Sensors::gyro_init() -{ - int fd; - - fd = open(GYRO_DEVICE_PATH, 0); - - if (fd < 0) { - warn("%s", GYRO_DEVICE_PATH); - errx(1, "FATAL: no gyro found"); - - } else { - /* set the gyro internal sampling rate up to at leat 500Hz */ - ioctl(fd, GYROIOCSSAMPLERATE, 500); - - /* set the driver to poll at 500Hz */ - ioctl(fd, SENSORIOCSPOLLRATE, 500); - - warnx("using system gyro"); - close(fd); - } -} - -void -Sensors::mag_init() -{ - int fd; - - fd = open(MAG_DEVICE_PATH, 0); - - if (fd < 0) { - warn("%s", MAG_DEVICE_PATH); - errx(1, "FATAL: no magnetometer found"); - } - - /* set the mag internal poll rate to at least 150Hz */ - ioctl(fd, MAGIOCSSAMPLERATE, 150); - - /* set the driver to poll at 150Hz */ - ioctl(fd, SENSORIOCSPOLLRATE, 150); - - close(fd); -} - -void -Sensors::baro_init() -{ - int fd; - - fd = open(BARO_DEVICE_PATH, 0); - - if (fd < 0) { - warn("%s", BARO_DEVICE_PATH); - warnx("No barometer found, ignoring"); - } - - /* set the driver to poll at 150Hz */ - ioctl(fd, SENSORIOCSPOLLRATE, 150); - - close(fd); -} - -void -Sensors::adc_init() -{ - - _fd_adc = open(ADC_DEVICE_PATH, O_RDONLY | O_NONBLOCK); - - if (_fd_adc < 0) { - warn(ADC_DEVICE_PATH); - warnx("FATAL: no ADC found"); - } -} - -void -Sensors::accel_poll(struct sensor_combined_s &raw) -{ - bool accel_updated; - orb_check(_accel_sub, &accel_updated); - - if (accel_updated) { - struct accel_report accel_report; - - orb_copy(ORB_ID(sensor_accel), _accel_sub, &accel_report); - - raw.accelerometer_m_s2[0] = accel_report.x; - raw.accelerometer_m_s2[1] = accel_report.y; - raw.accelerometer_m_s2[2] = accel_report.z; - - raw.accelerometer_raw[0] = accel_report.x_raw; - raw.accelerometer_raw[1] = accel_report.y_raw; - raw.accelerometer_raw[2] = accel_report.z_raw; - - raw.accelerometer_counter++; - } -} - -void -Sensors::gyro_poll(struct sensor_combined_s &raw) -{ - bool gyro_updated; - orb_check(_gyro_sub, &gyro_updated); - - if (gyro_updated) { - struct gyro_report gyro_report; - - orb_copy(ORB_ID(sensor_gyro), _gyro_sub, &gyro_report); - - raw.gyro_rad_s[0] = gyro_report.x; - raw.gyro_rad_s[1] = gyro_report.y; - raw.gyro_rad_s[2] = gyro_report.z; - - raw.gyro_raw[0] = gyro_report.x_raw; - raw.gyro_raw[1] = gyro_report.y_raw; - raw.gyro_raw[2] = gyro_report.z_raw; - - raw.gyro_counter++; - } -} - -void -Sensors::mag_poll(struct sensor_combined_s &raw) -{ - bool mag_updated; - orb_check(_mag_sub, &mag_updated); - - if (mag_updated) { - struct mag_report mag_report; - - orb_copy(ORB_ID(sensor_mag), _mag_sub, &mag_report); - - raw.magnetometer_ga[0] = mag_report.x; - raw.magnetometer_ga[1] = mag_report.y; - raw.magnetometer_ga[2] = mag_report.z; - - raw.magnetometer_raw[0] = mag_report.x_raw; - raw.magnetometer_raw[1] = mag_report.y_raw; - raw.magnetometer_raw[2] = mag_report.z_raw; - - raw.magnetometer_counter++; - } -} - -void -Sensors::baro_poll(struct sensor_combined_s &raw) -{ - bool baro_updated; - orb_check(_baro_sub, &baro_updated); - - if (baro_updated) { - - orb_copy(ORB_ID(sensor_baro), _baro_sub, &_barometer); - - raw.baro_pres_mbar = _barometer.pressure; // Pressure in mbar - raw.baro_alt_meter = _barometer.altitude; // Altitude in meters - raw.baro_temp_celcius = _barometer.temperature; // Temperature in degrees celcius - - raw.baro_counter++; - } -} - -void -Sensors::vehicle_status_poll() -{ - struct vehicle_status_s vstatus; - bool vstatus_updated; - - /* Check HIL state if vehicle status has changed */ - orb_check(_vstatus_sub, &vstatus_updated); - - if (vstatus_updated) { - - orb_copy(ORB_ID(vehicle_status), _vstatus_sub, &vstatus); - - /* switching from non-HIL to HIL mode */ - //printf("[sensors] Vehicle mode: %i \t AND: %i, HIL: %i\n", vstatus.mode, vstatus.mode & VEHICLE_MODE_FLAG_HIL_ENABLED, hil_enabled); - if (vstatus.flag_hil_enabled && !_hil_enabled) { - _hil_enabled = true; - _publishing = false; - - /* switching from HIL to non-HIL mode */ - - } else if (!_publishing && !_hil_enabled) { - _hil_enabled = false; - _publishing = true; - } - } -} - -void -Sensors::parameter_update_poll(bool forced) -{ - bool param_updated; - - /* Check if any parameter has changed */ - orb_check(_params_sub, ¶m_updated); - - if (param_updated || forced) { - /* read from param to clear updated flag */ - struct parameter_update_s update; - orb_copy(ORB_ID(parameter_update), _params_sub, &update); - - /* update parameters */ - parameters_update(); - - /* update sensor offsets */ - int fd = open(GYRO_DEVICE_PATH, 0); - struct gyro_scale gscale = { - _parameters.gyro_offset[0], - 1.0f, - _parameters.gyro_offset[1], - 1.0f, - _parameters.gyro_offset[2], - 1.0f, - }; - - if (OK != ioctl(fd, GYROIOCSSCALE, (long unsigned int)&gscale)) - warn("WARNING: failed to set scale / offsets for gyro"); - - close(fd); - - fd = open(ACCEL_DEVICE_PATH, 0); - struct accel_scale ascale = { - _parameters.accel_offset[0], - _parameters.accel_scale[0], - _parameters.accel_offset[1], - _parameters.accel_scale[1], - _parameters.accel_offset[2], - _parameters.accel_scale[2], - }; - - if (OK != ioctl(fd, ACCELIOCSSCALE, (long unsigned int)&ascale)) - warn("WARNING: failed to set scale / offsets for accel"); - - close(fd); - - fd = open(MAG_DEVICE_PATH, 0); - struct mag_scale mscale = { - _parameters.mag_offset[0], - _parameters.mag_scale[0], - _parameters.mag_offset[1], - _parameters.mag_scale[1], - _parameters.mag_offset[2], - _parameters.mag_scale[2], - }; - - if (OK != ioctl(fd, MAGIOCSSCALE, (long unsigned int)&mscale)) - warn("WARNING: failed to set scale / offsets for mag"); - - close(fd); - -#if 0 - printf("CH0: RAW MAX: %d MIN %d S: %d MID: %d FUNC: %d\n", (int)_parameters.max[0], (int)_parameters.min[0], (int)(_rc.chan[0].scaling_factor * 10000), (int)(_rc.chan[0].mid), (int)_rc.function[0]); - printf("CH1: RAW MAX: %d MIN %d S: %d MID: %d FUNC: %d\n", (int)_parameters.max[1], (int)_parameters.min[1], (int)(_rc.chan[1].scaling_factor * 10000), (int)(_rc.chan[1].mid), (int)_rc.function[1]); - printf("MAN: %d %d\n", (int)(_rc.chan[0].scaled * 100), (int)(_rc.chan[1].scaled * 100)); - fflush(stdout); - usleep(5000); -#endif - } -} - -void -Sensors::adc_poll(struct sensor_combined_s &raw) -{ - - /* rate limit to 100 Hz */ - if (hrt_absolute_time() - _last_adc >= 10000) { - /* make space for a maximum of eight channels */ - struct adc_msg_s buf_adc[8]; - /* read all channels available */ - int ret = read(_fd_adc, &buf_adc, sizeof(buf_adc)); - - for (unsigned i = 0; i < sizeof(buf_adc) / sizeof(buf_adc[0]); i++) { - - if (ret >= (int)sizeof(buf_adc[0])) { - - /* Save raw voltage values */ - if (i < (sizeof(raw.adc_voltage_v)) / sizeof(raw.adc_voltage_v[0])) { - raw.adc_voltage_v[i] = buf_adc[i].am_data / (4096.0f / 3.3f); - } - - /* look for specific channels and process the raw voltage to measurement data */ - if (ADC_BATTERY_VOLTAGE_CHANNEL == buf_adc[i].am_channel) { - /* Voltage in volts */ - float voltage = (buf_adc[i].am_data * _parameters.battery_voltage_scaling); - - if (voltage > VOLTAGE_BATTERY_IGNORE_THRESHOLD_VOLTS) { - - /* one-time initialization of low-pass value to avoid long init delays */ - if (_battery_status.voltage_v < 3.0f) { - _battery_status.voltage_v = voltage; - } - - _battery_status.timestamp = hrt_absolute_time(); - _battery_status.voltage_v = (BAT_VOL_LOWPASS_1 * (_battery_status.voltage_v + BAT_VOL_LOWPASS_2 * voltage));; - /* current and discharge are unknown */ - _battery_status.current_a = -1.0f; - _battery_status.discharged_mah = -1.0f; - - /* announce the battery voltage if needed, just publish else */ - if (_battery_pub > 0) { - orb_publish(ORB_ID(battery_status), _battery_pub, &_battery_status); - - } else { - _battery_pub = orb_advertise(ORB_ID(battery_status), &_battery_status); - } - } - - } else if (ADC_AIRSPEED_VOLTAGE_CHANNEL == buf_adc[i].am_channel) { - - /* calculate airspeed, raw is the difference from */ - float voltage = (float)(buf_adc[i].am_data ) * 3.3f / 4096.0f * 2.0f; //V_ref/4096 * (voltage divider factor) - - /** - * The voltage divider pulls the signal down, only act on - * a valid voltage from a connected sensor - */ - if (voltage > 0.4f) { - - float diff_pres_pa = (voltage - _parameters.airspeed_offset) * 1000.0f; //for MPXV7002DP sensor - - float airspeed_true = calc_true_airspeed(diff_pres_pa + _barometer.pressure*1e2f, - _barometer.pressure*1e2f, _barometer.temperature - 5.0f); //factor 1e2 for conversion from mBar to Pa - // XXX HACK - true temperature is much less than indicated temperature in baro, - // subtract 5 degrees in an attempt to account for the electrical upheating of the PCB - - float airspeed_indicated = calc_indicated_airspeed(diff_pres_pa); - - //printf("voltage: %.4f, diff_pres_pa %.4f, baro press %.4f Pa, v_ind %.4f, v_true %.4f\n", (double)voltage, (double)diff_pres_pa, (double)_barometer.pressure*1e2f, (double)airspeed_indicated, (double)airspeed_true); - - _differential_pressure.timestamp = hrt_absolute_time(); - _differential_pressure.static_pressure_mbar = _barometer.pressure; - _differential_pressure.differential_pressure_mbar = diff_pres_pa*1e-2f; - _differential_pressure.temperature_celcius = _barometer.temperature; - _differential_pressure.indicated_airspeed_m_s = airspeed_indicated; - _differential_pressure.true_airspeed_m_s = airspeed_true; - _differential_pressure.voltage = voltage; - - /* announce the airspeed if needed, just publish else */ - if (_airspeed_pub > 0) { - orb_publish(ORB_ID(differential_pressure), _airspeed_pub, &_differential_pressure); - - } else { - _airspeed_pub = orb_advertise(ORB_ID(differential_pressure), &_differential_pressure); - } - } - } - - _last_adc = hrt_absolute_time(); - } - } - } -} - -#if CONFIG_HRT_PPM -void -Sensors::ppm_poll() -{ - - /* read low-level values from FMU or IO RC inputs (PPM, Spektrum, S.Bus) */ - bool rc_updated; - orb_check(_rc_sub, &rc_updated); - - if (rc_updated) { - struct rc_input_values rc_input; - - orb_copy(ORB_ID(input_rc), _rc_sub, &rc_input); - - struct manual_control_setpoint_s manual_control; - - /* initialize to default values */ - manual_control.roll = NAN; - manual_control.pitch = NAN; - manual_control.yaw = NAN; - manual_control.throttle = NAN; - - manual_control.manual_mode_switch = NAN; - manual_control.manual_sas_switch = NAN; - manual_control.return_to_launch_switch = NAN; - manual_control.auto_offboard_input_switch = NAN; - - manual_control.flaps = NAN; - manual_control.aux1 = NAN; - manual_control.aux2 = NAN; - manual_control.aux3 = NAN; - manual_control.aux4 = NAN; - manual_control.aux5 = NAN; - - /* require at least four channels to consider the signal valid */ - if (rc_input.channel_count < 4) - return; - - unsigned channel_limit = rc_input.channel_count; - - if (channel_limit > _rc_max_chan_count) - channel_limit = _rc_max_chan_count; - - /* we are accepting this message */ - _ppm_last_valid = rc_input.timestamp; - - /* Read out values from raw message */ - for (unsigned int i = 0; i < channel_limit; i++) { - - /* - * 1) Constrain to min/max values, as later processing depends on bounds. - */ - if (rc_input.values[i] < _parameters.min[i]) - rc_input.values[i] = _parameters.min[i]; - if (rc_input.values[i] > _parameters.max[i]) - rc_input.values[i] = _parameters.max[i]; - - /* - * 2) Scale around the mid point differently for lower and upper range. - * - * This is necessary as they don't share the same endpoints and slope. - * - * First normalize to 0..1 range with correct sign (below or above center), - * the total range is 2 (-1..1). - * If center (trim) == min, scale to 0..1, if center (trim) == max, - * scale to -1..0. - * - * As the min and max bounds were enforced in step 1), division by zero - * cannot occur, as for the case of center == min or center == max the if - * statement is mutually exclusive with the arithmetic NaN case. - * - * DO NOT REMOVE OR ALTER STEP 1! - */ - if (rc_input.values[i] > (_parameters.trim[i] + _parameters.dz[i])) { - _rc.chan[i].scaled = (rc_input.values[i] - _parameters.trim[i] - _parameters.dz[i]) / (float)(_parameters.max[i] - _parameters.trim[i] - _parameters.dz[i]); - - } else if (rc_input.values[i] < (_parameters.trim[i] - _parameters.dz[i])) { - _rc.chan[i].scaled = (rc_input.values[i] - _parameters.trim[i] + _parameters.dz[i]) / (float)(_parameters.trim[i] - _parameters.min[i] - _parameters.dz[i]); - - } else { - /* in the configured dead zone, output zero */ - _rc.chan[i].scaled = 0.0f; - } - - _rc.chan[i].scaled *= _parameters.rev[i]; - - /* handle any parameter-induced blowups */ - if (!isfinite(_rc.chan[i].scaled)) - _rc.chan[i].scaled = 0.0f; - } - - _rc.chan_count = rc_input.channel_count; - _rc.timestamp = rc_input.timestamp; - - manual_control.timestamp = rc_input.timestamp; - - /* roll input - rolling right is stick-wise and rotation-wise positive */ - manual_control.roll = limit_minus_one_to_one(_rc.chan[_rc.function[ROLL]].scaled); - /* - * pitch input - stick down is negative, but stick down is pitching up (pos) in NED, - * so reverse sign. - */ - manual_control.pitch = limit_minus_one_to_one(-1.0f * _rc.chan[_rc.function[PITCH]].scaled); - /* yaw input - stick right is positive and positive rotation */ - manual_control.yaw = limit_minus_one_to_one(_rc.chan[_rc.function[YAW]].scaled); - /* throttle input */ - manual_control.throttle = _rc.chan[_rc.function[THROTTLE]].scaled; - - if (manual_control.throttle < 0.0f) manual_control.throttle = 0.0f; - - if (manual_control.throttle > 1.0f) manual_control.throttle = 1.0f; - - /* scale output */ - if (isfinite(_parameters.rc_scale_roll) && _parameters.rc_scale_roll > 0.0f) { - manual_control.roll *= _parameters.rc_scale_roll; - } - - if (isfinite(_parameters.rc_scale_pitch) && _parameters.rc_scale_pitch > 0.0f) { - manual_control.pitch *= _parameters.rc_scale_pitch; - } - - if (isfinite(_parameters.rc_scale_yaw) && _parameters.rc_scale_yaw > 0.0f) { - manual_control.yaw *= _parameters.rc_scale_yaw; - } - - /* override switch input */ - manual_control.manual_override_switch = limit_minus_one_to_one(_rc.chan[_rc.function[OVERRIDE]].scaled); - - /* mode switch input */ - manual_control.auto_mode_switch = limit_minus_one_to_one(_rc.chan[_rc.function[AUTO_MODE]].scaled); - - /* flaps */ - if (_rc.function[FLAPS] >= 0) { - - manual_control.flaps = limit_minus_one_to_one(_rc.chan[_rc.function[FLAPS]].scaled); - - if (isfinite(_parameters.rc_scale_flaps) && _parameters.rc_scale_flaps > 0.0f) { - manual_control.flaps *= _parameters.rc_scale_flaps; - } - } - - if (_rc.function[MANUAL_MODE] >= 0) { - manual_control.manual_mode_switch = limit_minus_one_to_one(_rc.chan[_rc.function[MANUAL_MODE]].scaled); - } - - if (_rc.function[SAS_MODE] >= 0) { - manual_control.manual_sas_switch = limit_minus_one_to_one(_rc.chan[_rc.function[SAS_MODE]].scaled); - } - - if (_rc.function[RTL] >= 0) { - manual_control.return_to_launch_switch = limit_minus_one_to_one(_rc.chan[_rc.function[RTL]].scaled); - } - - if (_rc.function[OFFBOARD_MODE] >= 0) { - manual_control.auto_offboard_input_switch = limit_minus_one_to_one(_rc.chan[_rc.function[OFFBOARD_MODE]].scaled); - } - - /* aux functions, only assign if valid mapping is present */ - if (_rc.function[AUX_1] >= 0) { - manual_control.aux1 = limit_minus_one_to_one(_rc.chan[_rc.function[AUX_1]].scaled); - } - - if (_rc.function[AUX_2] >= 0) { - manual_control.aux2 = limit_minus_one_to_one(_rc.chan[_rc.function[AUX_2]].scaled); - } - - if (_rc.function[AUX_3] >= 0) { - manual_control.aux3 = limit_minus_one_to_one(_rc.chan[_rc.function[AUX_3]].scaled); - } - - if (_rc.function[AUX_4] >= 0) { - manual_control.aux4 = limit_minus_one_to_one(_rc.chan[_rc.function[AUX_4]].scaled); - } - - if (_rc.function[AUX_5] >= 0) { - manual_control.aux5 = limit_minus_one_to_one(_rc.chan[_rc.function[AUX_5]].scaled); - } - - /* check if ready for publishing */ - if (_rc_pub > 0) { - orb_publish(ORB_ID(rc_channels), _rc_pub, &_rc); - - } else { - /* advertise the rc topic */ - _rc_pub = orb_advertise(ORB_ID(rc_channels), &_rc); - } - - /* check if ready for publishing */ - if (_manual_control_pub > 0) { - orb_publish(ORB_ID(manual_control_setpoint), _manual_control_pub, &manual_control); - - } else { - _manual_control_pub = orb_advertise(ORB_ID(manual_control_setpoint), &manual_control); - } - } - -} -#endif - -void -Sensors::task_main_trampoline(int argc, char *argv[]) -{ - sensors::g_sensors->task_main(); -} - -void -Sensors::task_main() -{ - - /* inform about start */ - printf("[sensors] Initializing..\n"); - fflush(stdout); - - /* start individual sensors */ - accel_init(); - gyro_init(); - mag_init(); - baro_init(); - adc_init(); - - /* - * do subscriptions - */ - _gyro_sub = orb_subscribe(ORB_ID(sensor_gyro)); - _accel_sub = orb_subscribe(ORB_ID(sensor_accel)); - _mag_sub = orb_subscribe(ORB_ID(sensor_mag)); - _rc_sub = orb_subscribe(ORB_ID(input_rc)); - _baro_sub = orb_subscribe(ORB_ID(sensor_baro)); - _vstatus_sub = orb_subscribe(ORB_ID(vehicle_status)); - _params_sub = orb_subscribe(ORB_ID(parameter_update)); - _manual_control_sub = orb_subscribe(ORB_ID(manual_control_setpoint)); - - /* rate limit vehicle status updates to 5Hz */ - orb_set_interval(_vstatus_sub, 200); - - /* - * do advertisements - */ - struct sensor_combined_s raw; - memset(&raw, 0, sizeof(raw)); - raw.timestamp = hrt_absolute_time(); - raw.adc_voltage_v[0] = 0.0f; - raw.adc_voltage_v[1] = 0.0f; - raw.adc_voltage_v[2] = 0.0f; - raw.adc_voltage_v[3] = 0.0f; - - memset(&_battery_status, 0, sizeof(_battery_status)); - _battery_status.voltage_v = BAT_VOL_INITIAL; - - /* get a set of initial values */ - accel_poll(raw); - gyro_poll(raw); - mag_poll(raw); - baro_poll(raw); - - parameter_update_poll(true /* forced */); - - /* advertise the sensor_combined topic and make the initial publication */ - _sensor_pub = orb_advertise(ORB_ID(sensor_combined), &raw); - - /* wakeup source(s) */ - struct pollfd fds[1]; - - /* use the gyro to pace output - XXX BROKEN if we are using the L3GD20 */ - fds[0].fd = _gyro_sub; - fds[0].events = POLLIN; - - while (!_task_should_exit) { - - /* wait for up to 500ms for data */ - int pret = poll(&fds[0], (sizeof(fds) / sizeof(fds[0])), 100); - - /* timed out - periodic check for _task_should_exit, etc. */ - if (pret == 0) - continue; - - /* this is undesirable but not much we can do - might want to flag unhappy status */ - if (pret < 0) { - warn("poll error %d, %d", pret, errno); - continue; - } - - perf_begin(_loop_perf); - - /* check vehicle status for changes to publication state */ - vehicle_status_poll(); - - /* check parameters for updates */ - parameter_update_poll(); - - /* store the time closest to all measurements (this is bogus, sensor timestamps should be propagated...) */ - raw.timestamp = hrt_absolute_time(); - - /* copy most recent sensor data */ - gyro_poll(raw); - accel_poll(raw); - mag_poll(raw); - baro_poll(raw); - - /* check battery voltage */ - adc_poll(raw); - - /* Inform other processes that new data is available to copy */ - if (_publishing) - orb_publish(ORB_ID(sensor_combined), _sensor_pub, &raw); - -#ifdef CONFIG_HRT_PPM - /* Look for new r/c input data */ - ppm_poll(); -#endif - - perf_end(_loop_perf); - } - - printf("[sensors] exiting.\n"); - - _sensors_task = -1; - _exit(0); -} - -int -Sensors::start() -{ - ASSERT(_sensors_task == -1); - - /* start the task */ - _sensors_task = task_spawn("sensors_task", - SCHED_DEFAULT, - SCHED_PRIORITY_MAX - 5, - 2048, - (main_t)&Sensors::task_main_trampoline, - nullptr); - - if (_sensors_task < 0) { - warn("task start failed"); - return -errno; - } - - return OK; -} - -int sensors_main(int argc, char *argv[]) -{ - if (argc < 1) - errx(1, "usage: sensors {start|stop|status}"); - - if (!strcmp(argv[1], "start")) { - - if (sensors::g_sensors != nullptr) - errx(1, "sensors task already running"); - - sensors::g_sensors = new Sensors; - - if (sensors::g_sensors == nullptr) - errx(1, "sensors task alloc failed"); - - if (OK != sensors::g_sensors->start()) { - delete sensors::g_sensors; - sensors::g_sensors = nullptr; - err(1, "sensors task start failed"); - } - - exit(0); - } - - if (!strcmp(argv[1], "stop")) { - if (sensors::g_sensors == nullptr) - errx(1, "sensors task not running"); - - delete sensors::g_sensors; - sensors::g_sensors = nullptr; - exit(0); - } - - if (!strcmp(argv[1], "status")) { - if (sensors::g_sensors) { - errx(0, "task is running"); - - } else { - errx(1, "task is not running"); - } - } - - errx(1, "unrecognized command"); -} - |