ESC_INFO.hpp
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/****************************************************************************
*
* Copyright (c) 2020 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.
*
****************************************************************************/
#ifndef ESC_INFO_HPP
#define ESC_INFO_HPP
#include <uORB/topics/esc_status.h>
class MavlinkStreamESCInfo : public MavlinkStream
{
public:
static MavlinkStream *new_instance(Mavlink *mavlink) { return new MavlinkStreamESCInfo(mavlink); }
static constexpr const char *get_name_static() { return "ESC_INFO"; }
static constexpr uint16_t get_id_static() { return MAVLINK_MSG_ID_ESC_INFO; }
const char *get_name() const override { return get_name_static(); }
uint16_t get_id() override { return get_id_static(); }
unsigned get_size() override
{
static constexpr unsigned size_per_batch = MAVLINK_MSG_ID_ESC_INFO_LEN + MAVLINK_NUM_NON_PAYLOAD_BYTES;
return _esc_status_sub.advertised() ? size_per_batch * _number_of_batches : 0;
}
private:
explicit MavlinkStreamESCInfo(Mavlink *mavlink) : MavlinkStream(mavlink) {}
uORB::Subscription _esc_status_sub{ORB_ID(esc_status)};
uint8_t _number_of_batches{0};
bool send() override
{
static constexpr uint8_t batch_size = MAVLINK_MSG_ESC_INFO_FIELD_TEMPERATURE_LEN;
esc_status_s esc_status;
if (_esc_status_sub.update(&esc_status)) {
mavlink_esc_info_t msg{};
msg.time_usec = esc_status.timestamp;
msg.counter = esc_status.counter;
msg.count = esc_status.esc_count;
msg.connection_type = esc_status.esc_connectiontype;
msg.info = esc_status.esc_online_flags;
// Ceil value of integer division. For 1-4 esc => 1 batch, 5-8 esc => 2 batches etc
_number_of_batches = ceilf((float)esc_status.esc_count / batch_size);
for (int batch_number = 0; batch_number < _number_of_batches; batch_number++) {
msg.index = batch_number * batch_size;
for (int esc_index = 0; esc_index < batch_size ; esc_index++) {
msg.failure_flags[esc_index] = esc_status.esc[esc_index].failures;
msg.error_count[esc_index] = esc_status.esc[esc_index].esc_errorcount;
msg.temperature[esc_index] = esc_status.esc[esc_index].esc_temperature;
}
mavlink_msg_esc_info_send_struct(_mavlink->get_channel(), &msg);
}
return true;
}
return false;
}
};
#endif // ESC_INFO_HPP