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Diffstat (limited to 'apps/drivers/hil/hil.cpp')
| -rw-r--r-- | apps/drivers/hil/hil.cpp | 851 |
1 files changed, 0 insertions, 851 deletions
diff --git a/apps/drivers/hil/hil.cpp b/apps/drivers/hil/hil.cpp deleted file mode 100644 index d9aa772d4..000000000 --- a/apps/drivers/hil/hil.cpp +++ /dev/null @@ -1,851 +0,0 @@ -/**************************************************************************** - * - * Copyright (C) 2012 PX4 Development Team. All rights reserved. - * - * 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 hil.cpp - * - * Driver/configurator for the virtual HIL port. - * - * This virtual driver emulates PWM / servo outputs for setups where - * the connected hardware does not provide enough or no PWM outputs. - * - * Its only function is to take actuator_control uORB messages, - * mix them with any loaded mixer and output the result to the - * actuator_output uORB topic. HIL can also be performed with normal - * PWM outputs, a special flag prevents the outputs to be operated - * during HIL mode. If HIL is not performed with a standalone FMU, - * but in a real system, it is NOT recommended to use this virtual - * driver. Use instead the normal FMU or IO driver. - */ - -#include <nuttx/config.h> - -#include <sys/types.h> -#include <stdint.h> -#include <stdbool.h> -#include <stdlib.h> -#include <semaphore.h> -#include <string.h> -#include <fcntl.h> -#include <poll.h> -#include <errno.h> -#include <stdio.h> -#include <math.h> -#include <unistd.h> - -#include <nuttx/arch.h> - -#include <drivers/device/device.h> -#include <drivers/drv_pwm_output.h> -#include <drivers/drv_gpio.h> -#include <drivers/drv_hrt.h> -#include <drivers/drv_mixer.h> - -#include <systemlib/systemlib.h> -#include <systemlib/mixer/mixer.h> - -#include <uORB/topics/actuator_controls.h> -#include <uORB/topics/actuator_outputs.h> - -#include <systemlib/err.h> - -class HIL : public device::CDev -{ -public: - enum Mode { - MODE_2PWM, - MODE_4PWM, - MODE_8PWM, - MODE_12PWM, - MODE_16PWM, - MODE_NONE - }; - HIL(); - virtual ~HIL(); - - virtual int ioctl(file *filp, int cmd, unsigned long arg); - - virtual int init(); - - int set_mode(Mode mode); - int set_pwm_rate(unsigned rate); - -private: - static const unsigned _max_actuators = 4; - - Mode _mode; - int _update_rate; - int _current_update_rate; - int _task; - int _t_actuators; - int _t_armed; - orb_advert_t _t_outputs; - unsigned _num_outputs; - bool _primary_pwm_device; - - volatile bool _task_should_exit; - bool _armed; - - MixerGroup *_mixers; - - actuator_controls_s _controls; - - static void task_main_trampoline(int argc, char *argv[]); - void task_main() __attribute__((noreturn)); - - static int control_callback(uintptr_t handle, - uint8_t control_group, - uint8_t control_index, - float &input); - - int pwm_ioctl(file *filp, int cmd, unsigned long arg); - - struct GPIOConfig { - uint32_t input; - uint32_t output; - uint32_t alt; - }; - - static const GPIOConfig _gpio_tab[]; - static const unsigned _ngpio; - - void gpio_reset(void); - void gpio_set_function(uint32_t gpios, int function); - void gpio_write(uint32_t gpios, int function); - uint32_t gpio_read(void); - int gpio_ioctl(file *filp, int cmd, unsigned long arg); - -}; - -namespace -{ - -HIL *g_hil; - -} // namespace - -HIL::HIL() : - CDev("hilservo", PWM_OUTPUT_DEVICE_PATH/*"/dev/hil" XXXL*/), - _mode(MODE_NONE), - _update_rate(50), - _current_update_rate(0), - _task(-1), - _t_actuators(-1), - _t_armed(-1), - _t_outputs(0), - _num_outputs(0), - _primary_pwm_device(false), - _task_should_exit(false), - _armed(false), - _mixers(nullptr) -{ - _debug_enabled = true; -} - -HIL::~HIL() -{ - if (_task != -1) { - /* tell the task we want it to go away */ - _task_should_exit = true; - - unsigned i = 10; - do { - /* wait 50ms - it should wake every 100ms or so worst-case */ - usleep(50000); - - /* if we have given up, kill it */ - if (--i == 0) { - task_delete(_task); - break; - } - - } while (_task != -1); - } - - /* clean up the alternate device node */ - if (_primary_pwm_device) - unregister_driver(PWM_OUTPUT_DEVICE_PATH); - - g_hil = nullptr; -} - -int -HIL::init() -{ - int ret; - - ASSERT(_task == -1); - - /* do regular cdev init */ - ret = CDev::init(); - - if (ret != OK) - return ret; - - // XXX already claimed with CDEV - ///* try to claim the generic PWM output device node as well - it's OK if we fail at this */ - //ret = register_driver(PWM_OUTPUT_DEVICE_PATH, &fops, 0666, (void *)this); - if (ret == OK) { - log("default PWM output device"); - _primary_pwm_device = true; - } - - /* reset GPIOs */ - // gpio_reset(); - - /* start the HIL interface task */ - _task = task_spawn("fmuhil", - SCHED_DEFAULT, - SCHED_PRIORITY_DEFAULT, - 2048, - (main_t)&HIL::task_main_trampoline, - nullptr); - - if (_task < 0) { - debug("task start failed: %d", errno); - return -errno; - } - - return OK; -} - -void -HIL::task_main_trampoline(int argc, char *argv[]) -{ - g_hil->task_main(); -} - -int -HIL::set_mode(Mode mode) -{ - /* - * Configure for PWM output. - * - * Note that regardless of the configured mode, the task is always - * listening and mixing; the mode just selects which of the channels - * are presented on the output pins. - */ - switch (mode) { - case MODE_2PWM: - debug("MODE_2PWM"); - /* multi-port with flow control lines as PWM */ - _update_rate = 50; /* default output rate */ - break; - - case MODE_4PWM: - debug("MODE_4PWM"); - /* multi-port as 4 PWM outs */ - _update_rate = 50; /* default output rate */ - break; - - case MODE_8PWM: - debug("MODE_8PWM"); - /* multi-port as 8 PWM outs */ - _update_rate = 50; /* default output rate */ - break; - - case MODE_12PWM: - debug("MODE_12PWM"); - /* multi-port as 12 PWM outs */ - _update_rate = 50; /* default output rate */ - break; - - case MODE_16PWM: - debug("MODE_16PWM"); - /* multi-port as 16 PWM outs */ - _update_rate = 50; /* default output rate */ - break; - - case MODE_NONE: - debug("MODE_NONE"); - /* disable servo outputs and set a very low update rate */ - _update_rate = 10; - break; - - default: - return -EINVAL; - } - _mode = mode; - return OK; -} - -int -HIL::set_pwm_rate(unsigned rate) -{ - if ((rate > 500) || (rate < 10)) - return -EINVAL; - - _update_rate = rate; - return OK; -} - -void -HIL::task_main() -{ - /* - * Subscribe to the appropriate PWM output topic based on whether we are the - * primary PWM output or not. - */ - _t_actuators = orb_subscribe(_primary_pwm_device ? ORB_ID_VEHICLE_ATTITUDE_CONTROLS : - ORB_ID(actuator_controls_1)); - /* force a reset of the update rate */ - _current_update_rate = 0; - - _t_armed = orb_subscribe(ORB_ID(actuator_armed)); - orb_set_interval(_t_armed, 200); /* 5Hz update rate */ - - /* advertise the mixed control outputs */ - actuator_outputs_s outputs; - memset(&outputs, 0, sizeof(outputs)); - /* advertise the mixed control outputs */ - _t_outputs = orb_advertise(_primary_pwm_device ? ORB_ID_VEHICLE_CONTROLS : ORB_ID(actuator_outputs_1), - &outputs); - - pollfd fds[2]; - fds[0].fd = _t_actuators; - fds[0].events = POLLIN; - fds[1].fd = _t_armed; - fds[1].events = POLLIN; - - unsigned num_outputs; - - /* select the number of virtual outputs */ - switch (_mode) { - case MODE_2PWM: - num_outputs = 2; - break; - - case MODE_4PWM: - num_outputs = 4; - break; - - case MODE_8PWM: - case MODE_12PWM: - case MODE_16PWM: - // XXX only support the lower 8 - trivial to extend - num_outputs = 8; - break; - - case MODE_NONE: - default: - num_outputs = 0; - break; - } - - log("starting"); - - /* loop until killed */ - while (!_task_should_exit) { - - /* handle update rate changes */ - if (_current_update_rate != _update_rate) { - int update_rate_in_ms = int(1000 / _update_rate); - if (update_rate_in_ms < 2) - update_rate_in_ms = 2; - orb_set_interval(_t_actuators, update_rate_in_ms); - // up_pwm_servo_set_rate(_update_rate); - _current_update_rate = _update_rate; - } - - /* sleep waiting for data, but no more than a second */ - int ret = ::poll(&fds[0], 2, 1000); - - /* this would be bad... */ - if (ret < 0) { - log("poll error %d", errno); - continue; - } - - /* do we have a control update? */ - if (fds[0].revents & POLLIN) { - - /* get controls - must always do this to avoid spinning */ - orb_copy(ORB_ID_VEHICLE_ATTITUDE_CONTROLS, _t_actuators, &_controls); - - /* can we mix? */ - if (_mixers != nullptr) { - - /* do mixing */ - outputs.noutputs = _mixers->mix(&outputs.output[0], num_outputs); - outputs.timestamp = hrt_absolute_time(); - - /* iterate actuators */ - for (unsigned i = 0; i < num_outputs; i++) { - - /* last resort: catch NaN, INF and out-of-band errors */ - if (i < (unsigned)outputs.noutputs && - isfinite(outputs.output[i]) && - outputs.output[i] >= -1.0f && - outputs.output[i] <= 1.0f) { - /* scale for PWM output 900 - 2100us */ - outputs.output[i] = 1500 + (600 * outputs.output[i]); - } else { - /* - * Value is NaN, INF or out of band - set to the minimum value. - * This will be clearly visible on the servo status and will limit the risk of accidentally - * spinning motors. It would be deadly in flight. - */ - outputs.output[i] = 900; - } - } - - /* and publish for anyone that cares to see */ - orb_publish(ORB_ID_VEHICLE_CONTROLS, _t_outputs, &outputs); - } - } - - /* how about an arming update? */ - if (fds[1].revents & POLLIN) { - actuator_armed_s aa; - - /* get new value */ - orb_copy(ORB_ID(actuator_armed), _t_armed, &aa); - } - } - - ::close(_t_actuators); - ::close(_t_armed); - - /* make sure servos are off */ - // up_pwm_servo_deinit(); - - log("stopping"); - - /* note - someone else is responsible for restoring the GPIO config */ - - /* tell the dtor that we are exiting */ - _task = -1; - _exit(0); -} - -int -HIL::control_callback(uintptr_t handle, - uint8_t control_group, - uint8_t control_index, - float &input) -{ - const actuator_controls_s *controls = (actuator_controls_s *)handle; - - input = controls->control[control_index]; - return 0; -} - -int -HIL::ioctl(file *filp, int cmd, unsigned long arg) -{ - int ret; - - debug("ioctl 0x%04x 0x%08x", cmd, arg); - - // /* try it as a GPIO ioctl first */ - // ret = HIL::gpio_ioctl(filp, cmd, arg); - // if (ret != -ENOTTY) - // return ret; - - /* if we are in valid PWM mode, try it as a PWM ioctl as well */ - switch(_mode) { - case MODE_2PWM: - case MODE_4PWM: - case MODE_8PWM: - case MODE_12PWM: - case MODE_16PWM: - ret = HIL::pwm_ioctl(filp, cmd, arg); - break; - default: - ret = -ENOTTY; - debug("not in a PWM mode"); - break; - } - - /* if nobody wants it, let CDev have it */ - if (ret == -ENOTTY) - ret = CDev::ioctl(filp, cmd, arg); - - return ret; -} - -int -HIL::pwm_ioctl(file *filp, int cmd, unsigned long arg) -{ - int ret = OK; - // int channel; - - lock(); - - switch (cmd) { - case PWM_SERVO_ARM: - // up_pwm_servo_arm(true); - break; - - case PWM_SERVO_DISARM: - // up_pwm_servo_arm(false); - break; - - case PWM_SERVO_SET_UPDATE_RATE: - // HIL always outputs at the alternate (usually faster) rate - g_hil->set_pwm_rate(arg); - break; - - case PWM_SERVO_SELECT_UPDATE_RATE: - // HIL always outputs at the alternate (usually faster) rate - break; - - case PWM_SERVO_SET(2): - case PWM_SERVO_SET(3): - if (_mode != MODE_4PWM) { - ret = -EINVAL; - break; - } - - /* FALLTHROUGH */ - case PWM_SERVO_SET(0): - case PWM_SERVO_SET(1): - if (arg < 2100) { - // channel = cmd - PWM_SERVO_SET(0); -// up_pwm_servo_set(channel, arg); XXX - - } else { - ret = -EINVAL; - } - - break; - - case PWM_SERVO_GET(2): - case PWM_SERVO_GET(3): - if (_mode != MODE_4PWM) { - ret = -EINVAL; - break; - } - - /* FALLTHROUGH */ - case PWM_SERVO_GET(0): - case PWM_SERVO_GET(1): { - // channel = cmd - PWM_SERVO_SET(0); - // *(servo_position_t *)arg = up_pwm_servo_get(channel); - break; - } - - case PWM_SERVO_GET_RATEGROUP(0) ... PWM_SERVO_GET_RATEGROUP(PWM_OUTPUT_MAX_CHANNELS - 1): { - // no restrictions on output grouping - unsigned channel = cmd - PWM_SERVO_GET_RATEGROUP(0); - - *(uint32_t *)arg = (1 << channel); - break; - } - - case MIXERIOCGETOUTPUTCOUNT: - if (_mode == MODE_4PWM) { - *(unsigned *)arg = 4; - - } else { - *(unsigned *)arg = 2; - } - - break; - - case MIXERIOCRESET: - if (_mixers != nullptr) { - delete _mixers; - _mixers = nullptr; - } - - break; - - case MIXERIOCADDSIMPLE: { - mixer_simple_s *mixinfo = (mixer_simple_s *)arg; - - SimpleMixer *mixer = new SimpleMixer(control_callback, - (uintptr_t)&_controls, mixinfo); - - if (mixer->check()) { - delete mixer; - ret = -EINVAL; - - } else { - if (_mixers == nullptr) - _mixers = new MixerGroup(control_callback, - (uintptr_t)&_controls); - - _mixers->add_mixer(mixer); - } - - break; - } - - case MIXERIOCLOADBUF: { - const char *buf = (const char *)arg; - unsigned buflen = strnlen(buf, 1024); - - if (_mixers == nullptr) - _mixers = new MixerGroup(control_callback, (uintptr_t)&_controls); - - if (_mixers == nullptr) { - ret = -ENOMEM; - - } else { - - ret = _mixers->load_from_buf(buf, buflen); - - if (ret != 0) { - debug("mixer load failed with %d", ret); - delete _mixers; - _mixers = nullptr; - ret = -EINVAL; - } - } - break; - } - - - default: - ret = -ENOTTY; - break; - } - - unlock(); - - return ret; -} - -namespace -{ - -enum PortMode { - PORT_MODE_UNDEFINED = 0, - PORT1_MODE_UNSET, - PORT1_FULL_PWM, - PORT1_PWM_AND_SERIAL, - PORT1_PWM_AND_GPIO, - PORT2_MODE_UNSET, - PORT2_8PWM, - PORT2_12PWM, - PORT2_16PWM, -}; - -PortMode g_port_mode; - -int -hil_new_mode(PortMode new_mode) -{ - // uint32_t gpio_bits; - - -// /* reset to all-inputs */ -// g_hil->ioctl(0, GPIO_RESET, 0); - - // gpio_bits = 0; - - HIL::Mode servo_mode = HIL::MODE_NONE; - - switch (new_mode) { - case PORT_MODE_UNDEFINED: - case PORT1_MODE_UNSET: - case PORT2_MODE_UNSET: - /* nothing more to do here */ - break; - - case PORT1_FULL_PWM: - /* select 4-pin PWM mode */ - servo_mode = HIL::MODE_4PWM; - break; - - case PORT1_PWM_AND_SERIAL: - /* select 2-pin PWM mode */ - servo_mode = HIL::MODE_2PWM; -// /* set RX/TX multi-GPIOs to serial mode */ -// gpio_bits = GPIO_MULTI_3 | GPIO_MULTI_4; - break; - - case PORT1_PWM_AND_GPIO: - /* select 2-pin PWM mode */ - servo_mode = HIL::MODE_2PWM; - break; - - case PORT2_8PWM: - /* select 8-pin PWM mode */ - servo_mode = HIL::MODE_8PWM; - break; - - case PORT2_12PWM: - /* select 12-pin PWM mode */ - servo_mode = HIL::MODE_12PWM; - break; - - case PORT2_16PWM: - /* select 16-pin PWM mode */ - servo_mode = HIL::MODE_16PWM; - break; - } - -// /* adjust GPIO config for serial mode(s) */ -// if (gpio_bits != 0) -// g_hil->ioctl(0, GPIO_SET_ALT_1, gpio_bits); - - /* (re)set the PWM output mode */ - g_hil->set_mode(servo_mode); - - return OK; -} - -int -hil_start(void) -{ - int ret = OK; - - if (g_hil == nullptr) { - - g_hil = new HIL; - - if (g_hil == nullptr) { - ret = -ENOMEM; - - } else { - ret = g_hil->init(); - - if (ret != OK) { - delete g_hil; - g_hil = nullptr; - } - } - } - - return ret; -} - -void -test(void) -{ - int fd; - - fd = open(PWM_OUTPUT_DEVICE_PATH, 0); - - if (fd < 0) { - puts("open fail"); - exit(1); - } - - ioctl(fd, PWM_SERVO_ARM, 0); - ioctl(fd, PWM_SERVO_SET(0), 1000); - - close(fd); - - exit(0); -} - -void -fake(int argc, char *argv[]) -{ - if (argc < 5) { - puts("hil fake <roll> <pitch> <yaw> <thrust> (values -100 .. 100)"); - exit(1); - } - - actuator_controls_s ac; - - ac.control[0] = strtol(argv[1], 0, 0) / 100.0f; - - ac.control[1] = strtol(argv[2], 0, 0) / 100.0f; - - ac.control[2] = strtol(argv[3], 0, 0) / 100.0f; - - ac.control[3] = strtol(argv[4], 0, 0) / 100.0f; - - orb_advert_t handle = orb_advertise(ORB_ID_VEHICLE_ATTITUDE_CONTROLS, &ac); - - if (handle < 0) { - puts("advertise failed"); - exit(1); - } - - exit(0); -} - -} // namespace - -extern "C" __EXPORT int hil_main(int argc, char *argv[]); - -int -hil_main(int argc, char *argv[]) -{ - PortMode new_mode = PORT_MODE_UNDEFINED; - const char *verb = argv[1]; - - if (hil_start() != OK) - errx(1, "failed to start the HIL driver"); - - /* - * Mode switches. - */ - - // this was all cut-and-pasted from the FMU driver; it's junk - if (!strcmp(verb, "mode_pwm")) { - new_mode = PORT1_FULL_PWM; - - } else if (!strcmp(verb, "mode_pwm_serial")) { - new_mode = PORT1_PWM_AND_SERIAL; - - } else if (!strcmp(verb, "mode_pwm_gpio")) { - new_mode = PORT1_PWM_AND_GPIO; - - } else if (!strcmp(verb, "mode_port2_pwm8")) { - new_mode = PORT2_8PWM; - - } else if (!strcmp(verb, "mode_port2_pwm12")) { - new_mode = PORT2_8PWM; - - } else if (!strcmp(verb, "mode_port2_pwm16")) { - new_mode = PORT2_8PWM; - } - - /* was a new mode set? */ - if (new_mode != PORT_MODE_UNDEFINED) { - - /* yes but it's the same mode */ - if (new_mode == g_port_mode) - return OK; - - /* switch modes */ - return hil_new_mode(new_mode); - } - - if (!strcmp(verb, "test")) - test(); - - if (!strcmp(verb, "fake")) - fake(argc - 1, argv + 1); - - - fprintf(stderr, "HIL: unrecognized command, try:\n"); - fprintf(stderr, " mode_pwm, mode_gpio_serial, mode_pwm_serial, mode_pwm_gpio, mode_port2_pwm8, mode_port2_pwm12, mode_port2_pwm16\n"); - return -EINVAL; -} |