浅谈APM系列-----gcs_check_input
逄边浩
SCHED_TASK(gcs_check_input, 400, 180)
流水文，只是记录一下自己看代码的过程。
位置：X:\ardupilot\ArduCopter\GCS_Mavlink.cpp
/*
* look for incoming commands on the GCS links
*/
void Copter::gcs_check_input(void)
{
gcs().update();
}位置：X:\ardupilot\libraries\GCS_MAVLink\GCS_Common.cpp
void GCS::update(void)
{
for (uint8_t i=0; i<num_gcs(); i++) {
if (chan(i).initialised) {
chan(i).update();
}
}
}位置：X:\ardupilot\ArduCopter\GCS_Copter.h
#pragma once
#include <GCS_MAVLink/GCS.h>
#include "GCS_Mavlink.h"
class GCS_Copter : public GCS
{
friend class Copter; // for access to _chan in parameter declarations
public:
// return the number of valid GCS objects
uint8_t num_gcs() const override { return ARRAY_SIZE(_chan); };//计算有几个通道
// return GCS link at offset ofs
GCS_MAVLINK_Copter &chan(const uint8_t ofs) override {
return _chan[ofs];
};
const GCS_MAVLINK_Copter &chan(const uint8_t ofs) const override {
return _chan[ofs];
};
private:
GCS_MAVLINK_Copter _chan[MAVLINK_COMM_NUM_BUFFERS];// allow five telemetry ports
};chan(i).update();位置：X:\ardupilot\libraries\GCS_MAVLink\GCS_Common.cpp
void
GCS_MAVLINK::update(uint32_t max_time_us)
{
// receive new packets
mavlink_message_t msg;
mavlink_status_t status;
uint32_t tstart_us = AP_HAL::micros();
hal.util->perf_begin(_perf_update);//统计时间或者次数
status.packet_rx_drop_count = 0;
// process received bytes（处理收到的字节）
uint16_t nbytes = comm_get_available(chan);//Number of bytes available
for (uint16_t i=0; i<nbytes; i++)
{
uint8_t c = comm_receive_ch(chan);
bool parsed_packet = false;
// Try to get a new message
if (mavlink_parse_char(chan, c, &msg, &status)) {
hal.util->perf_begin(_perf_packet);
packetReceived(status, msg);//3
hal.util->perf_end(_perf_packet);
parsed_packet = true;
}
if (parsed_packet || i % 100 == 0) {//解析一个完整的数据包，或者解析了100个字节
// make sure we don't spend too much time parsing mavlink messages（确保我们不会花太多时间解析mavlink消息）
if (AP_HAL::micros() - tstart_us > max_time_us) {
break;
}
}
}
if (!waypoint_receiving) {//waypoint_receiving = flase
hal.util->perf_end(_perf_update);
return;
}
uint32_t tnow = AP_HAL::millis();
uint32_t wp_recv_time = 1000U + (stream_slowdown*20);
// stop waypoint receiving if timeout(停止waypoint接收超时)
if (waypoint_receiving && (tnow - waypoint_timelast_receive) > wp_recv_time+waypoint_receive_timeout) {
waypoint_receiving = false;//超时，停止
} else if (waypoint_receiving &&
(tnow - waypoint_timelast_request) > wp_recv_time) {
waypoint_timelast_request = tnow;
send_message(MSG_NEXT_WAYPOINT);
}
hal.util->perf_end(_perf_update);
}
/// Check for available data on the nominated MAVLink channel
///
/// @param chan Channel to check
/// @returns Number of bytes available
uint16_t comm_get_available(mavlink_channel_t chan)
{
if (!valid_channel(chan)) {
return 0;
}
if ((1U<<chan) & mavlink_locked_mask) {
return 0;
}
int16_t bytes = mavlink_comm_port[chan]->available();
if (bytes == -1) {
return 0;
}
return (uint16_t)bytes;
}
位置：X:\ardupilot\libraries\GCS_MAVLink\GCS_Common.cpp
void GCS_MAVLINK::packetReceived(const mavlink_status_t &status,
mavlink_message_t &msg)//2
{
// we exclude radio packets because we historically used this to
// make it possible to use the CLI over the radio
if (msg.msgid != MAVLINK_MSG_ID_RADIO && msg.msgid != MAVLINK_MSG_ID_RADIO_STATUS) {
mavlink_active |= (1U<<(chan-MAVLINK_COMM_0));
}
if (!(status.flags & MAVLINK_STATUS_FLAG_IN_MAVLINK1) &&
(status.flags & MAVLINK_STATUS_FLAG_OUT_MAVLINK1) &&
serialmanager_p &&
serialmanager_p->get_mavlink_protocol(chan) == AP_SerialManager::SerialProtocol_MAVLink2) {
// if we receive any MAVLink2 packets on a connection
// currently sending MAVLink1 then switch to sending
// MAVLink2
mavlink_status_t *cstatus = mavlink_get_channel_status(chan);
if (cstatus != nullptr) {
cstatus->flags &= ~MAVLINK_STATUS_FLAG_OUT_MAVLINK1;
}
}
// if a snoop handler has been setup then use it
if (msg_snoop != nullptr) {
msg_snoop(&msg);
}
if (routing.check_and_forward(chan, &msg) &&
accept_packet(status, msg)) {
handleMessage(&msg);//1
}
}handleMessage跳转至基类
class GCS_MAVLINK_Copter : public GCS_MAVLINK位置：X:\ardupilot\ArduCopter\GCS_Mavlink.cpp
void GCS_MAVLINK_Copter::handleMessage(mavlink_message_t* msg)
{
MAV_RESULT result = MAV_RESULT_FAILED; // assume failure. Each messages id is responsible for return ACK or NAK if required
switch (msg->msgid) {
case MAVLINK_MSG_ID_HEARTBEAT: // MAV ID: 0
{
// We keep track of the last time we received a heartbeat from our GCS for failsafe purposes
if(msg->sysid != copter.g.sysid_my_gcs) break;
copter.failsafe.last_heartbeat_ms = AP_HAL::millis();
copter.pmTest1++;
break;
}
case MAVLINK_MSG_ID_PARAM_VALUE:
{
#if MOUNT == ENABLED
copter.camera_mount.handle_param_value(msg);
#endif
break;
}
case MAVLINK_MSG_ID_REQUEST_DATA_STREAM: // MAV ID: 66
{
handle_request_data_stream(msg, false);
break;
}
case MAVLINK_MSG_ID_GIMBAL_REPORT:
{
#if MOUNT == ENABLED
handle_gimbal_report(copter.camera_mount, msg);
#endif
break;
}
case MAVLINK_MSG_ID_RC_CHANNELS_OVERRIDE: // MAV ID: 70
{
// allow override of RC channel values for HIL
// or for complete GCS control of switch position
// and RC PWM values.
if(msg->sysid != copter.g.sysid_my_gcs) break; // Only accept control from our gcs
if (!copter.ap.rc_override_enable) {
if (copter.failsafe.rc_override_active) { // if overrides were active previously, disable them
copter.failsafe.rc_override_active = false;
hal.rcin->clear_overrides();
}
break;
}
mavlink_rc_channels_override_t packet;
int16_t v[8];
mavlink_msg_rc_channels_override_decode(msg, &packet);
v[0] = packet.chan1_raw;
v[1] = packet.chan2_raw;
v[2] = packet.chan3_raw;
v[3] = packet.chan4_raw;
v[4] = packet.chan5_raw;
v[5] = packet.chan6_raw;
v[6] = packet.chan7_raw;
v[7] = packet.chan8_raw;
// record that rc are overwritten so we can trigger a failsafe if we lose contact with groundstation
copter.failsafe.rc_override_active = hal.rcin->set_overrides(v, 8);
// a RC override message is considered to be a 'heartbeat' from the ground station for failsafe purposes
copter.failsafe.last_heartbeat_ms = AP_HAL::millis();
break;
}
case MAVLINK_MSG_ID_MANUAL_CONTROL:
{
if(msg->sysid != copter.g.sysid_my_gcs) break; // Only accept control from our gcs
mavlink_manual_control_t packet;
mavlink_msg_manual_control_decode(msg, &packet);
if (packet.z < 0) { // Copter doesn't do negative thrust
break;
}
bool override_active = false;
int16_t roll = (packet.y == INT16_MAX) ? 0 : copter.channel_roll->get_radio_min() + (copter.channel_roll->get_radio_max() - copter.channel_roll->get_radio_min()) * (packet.y + 1000) / 2000.0f;
int16_t pitch = (packet.x == INT16_MAX) ? 0 : copter.channel_pitch->get_radio_min() + (copter.channel_pitch->get_radio_max() - copter.channel_pitch->get_radio_min()) * (-packet.x + 1000) / 2000.0f;
int16_t throttle = (packet.z == INT16_MAX) ? 0 : copter.channel_throttle->get_radio_min() + (copter.channel_throttle->get_radio_max() - copter.channel_throttle->get_radio_min()) * (packet.z) / 1000.0f;
int16_t yaw = (packet.r == INT16_MAX) ? 0 : copter.channel_yaw->get_radio_min() + (copter.channel_yaw->get_radio_max() - copter.channel_yaw->get_radio_min()) * (packet.r + 1000) / 2000.0f;
override_active |= hal.rcin->set_override(uint8_t(copter.rcmap.roll() - 1), roll);
override_active |= hal.rcin->set_override(uint8_t(copter.rcmap.pitch() - 1), pitch);
override_active |= hal.rcin->set_override(uint8_t(copter.rcmap.throttle() - 1), throttle);
override_active |= hal.rcin->set_override(uint8_t(copter.rcmap.yaw() - 1), yaw);
// record that rc are overwritten so we can trigger a failsafe if we lose contact with groundstation
copter.failsafe.rc_override_active = override_active;
// a manual control message is considered to be a 'heartbeat' from the ground station for failsafe purposes
copter.failsafe.last_heartbeat_ms = AP_HAL::millis();
break;
}
case MAVLINK_MSG_ID_COMMAND_INT:
{
// decode packet
mavlink_command_int_t packet;
mavlink_msg_command_int_decode(msg, &packet);
switch(packet.command)
{
case MAV_CMD_DO_SET_HOME: {
// assume failure
result = MAV_RESULT_FAILED;
if (is_equal(packet.param1, 1.0f)) {
// if param1 is 1, use current location
if (copter.set_home_to_current_location(true)) {
result = MAV_RESULT_ACCEPTED;
}
break;
}
// ensure param1 is zero
if (!is_zero(packet.param1)) {
break;
}
// check frame type is supported
if (packet.frame != MAV_FRAME_GLOBAL &&
packet.frame != MAV_FRAME_GLOBAL_INT &&
packet.frame != MAV_FRAME_GLOBAL_RELATIVE_ALT &&
packet.frame != MAV_FRAME_GLOBAL_RELATIVE_ALT_INT) {
break;
}
// sanity check location
if (!check_latlng(packet.x, packet.y)) {
break;
}
Location new_home_loc {};
new_home_loc.lat = packet.x;
new_home_loc.lng = packet.y;
new_home_loc.alt = packet.z * 100;
// handle relative altitude
if (packet.frame == MAV_FRAME_GLOBAL_RELATIVE_ALT || packet.frame == MAV_FRAME_GLOBAL_RELATIVE_ALT_INT) {
if (copter.ap.home_state == HOME_UNSET) {
// cannot use relative altitude if home is not set
break;
}
new_home_loc.alt += copter.ahrs.get_home().alt;
}
if (copter.set_home(new_home_loc, true)) {
result = MAV_RESULT_ACCEPTED;
}
break;
}
case MAV_CMD_DO_SET_ROI: {
// param1 : /* Region of interest mode (not used)*/
// param2 : /* MISSION index/ target ID (not used)*/
// param3 : /* ROI index (not used)*/
// param4 : /* empty */
// x : lat
// y : lon
// z : alt
// sanity check location
if (!check_latlng(packet.x, packet.y)) {
break;
}
Location roi_loc;
roi_loc.lat = packet.x;
roi_loc.lng = packet.y;
roi_loc.alt = (int32_t)(packet.z * 100.0f);
copter.set_auto_yaw_roi(roi_loc);
result = MAV_RESULT_ACCEPTED;
break;
}
default:
result = MAV_RESULT_UNSUPPORTED;
break;
}
// send ACK or NAK
mavlink_msg_command_ack_send_buf(msg, chan, packet.command, result);
break;
}
// Pre-Flight calibration requests
case MAVLINK_MSG_ID_COMMAND_LONG: // MAV ID: 76
{
// decode packet
mavlink_command_long_t packet;
mavlink_msg_command_long_decode(msg, &packet);
switch(packet.command) {
case MAV_CMD_NAV_TAKEOFF: {
// param3 : horizontal navigation by pilot acceptable
// param4 : yaw angle (not supported)
// param5 : latitude (not supported)
// param6 : longitude (not supported)
// param7 : altitude [metres]
float takeoff_alt = packet.param7 * 100; // Convert m to cm
if(copter.do_user_takeoff(takeoff_alt, is_zero(packet.param3))) {
result = MAV_RESULT_ACCEPTED;
} else {
result = MAV_RESULT_FAILED;
}
break;
}
case MAV_CMD_NAV_LOITER_UNLIM:
if (copter.set_mode(LOITER, MODE_REASON_GCS_COMMAND)) {
result = MAV_RESULT_ACCEPTED;
}
break;
case MAV_CMD_NAV_RETURN_TO_LAUNCH:
if (copter.set_mode(RTL, MODE_REASON_GCS_COMMAND)) {
result = MAV_RESULT_ACCEPTED;
}
break;
case MAV_CMD_NAV_LAND:
if (copter.set_mode(LAND, MODE_REASON_GCS_COMMAND)) {
result = MAV_RESULT_ACCEPTED;
}
break;
case MAV_CMD_CONDITION_YAW:
// param1 : target angle [0-360]
// param2 : speed during change [deg per second]
// param3 : direction (-1:ccw, +1:cw)
// param4 : relative offset (1) or absolute angle (0)
if ((packet.param1 >= 0.0f) &&
(packet.param1 <= 360.0f) &&
(is_zero(packet.param4) || is_equal(packet.param4,1.0f))) {
copter.set_auto_yaw_look_at_heading(packet.param1, packet.param2, (int8_t)packet.param3, is_positive(packet.param4));
result = MAV_RESULT_ACCEPTED;
} else {
result = MAV_RESULT_FAILED;
}
break;
case MAV_CMD_DO_CHANGE_SPEED:
// param1 : unused
// param2 : new speed in m/s
// param3 : unused
// param4 : unused
if (packet.param2 > 0.0f) {
copter.wp_nav->set_speed_xy(packet.param2 * 100.0f);
result = MAV_RESULT_ACCEPTED;
} else {
result = MAV_RESULT_FAILED;
}
break;
case MAV_CMD_DO_SET_HOME:
// param1 : use current (1=use current location, 0=use specified location)
// param5 : latitude
// param6 : longitude
// param7 : altitude (absolute)
result = MAV_RESULT_FAILED; // assume failure
if (is_equal(packet.param1,1.0f)) {
if (copter.set_home_to_current_location(true)) {
result = MAV_RESULT_ACCEPTED;
}
} else {
// ensure param1 is zero
if (!is_zero(packet.param1)) {
break;
}
// sanity check location
if (!check_latlng(packet.param5, packet.param6)) {
break;
}
Location new_home_loc;
new_home_loc.lat = (int32_t)(packet.param5 * 1.0e7f);
new_home_loc.lng = (int32_t)(packet.param6 * 1.0e7f);
new_home_loc.alt = (int32_t)(packet.param7 * 100.0f);
if (copter.set_home(new_home_loc, true)) {
result = MAV_RESULT_ACCEPTED;
}
}
break;
case MAV_CMD_DO_SET_ROI:
// param1 : regional of interest mode (not supported)
// param2 : mission index/ target id (not supported)
// param3 : ROI index (not supported)
// param5 : x / lat
// param6 : y / lon
// param7 : z / alt
// sanity check location
if (!check_latlng(packet.param5, packet.param6)) {
break;
}
Location roi_loc;
roi_loc.lat = (int32_t)(packet.param5 * 1.0e7f);
roi_loc.lng = (int32_t)(packet.param6 * 1.0e7f);
roi_loc.alt = (int32_t)(packet.param7 * 100.0f);
copter.set_auto_yaw_roi(roi_loc);
result = MAV_RESULT_ACCEPTED;
break;
case MAV_CMD_DO_MOUNT_CONTROL:
#if MOUNT == ENABLED
if(!copter.camera_mount.has_pan_control()) {
copter.set_auto_yaw_look_at_heading((float)packet.param3 / 100.0f,0.0f,0,0);
}
copter.camera_mount.control(packet.param1, packet.param2, packet.param3, (MAV_MOUNT_MODE) packet.param7);
result = MAV_RESULT_ACCEPTED;
#endif
break;
case MAV_CMD_MISSION_START:
if (copter.motors->armed() && copter.set_mode(AUTO, MODE_REASON_GCS_COMMAND)) {
copter.set_auto_armed(true);
if (copter.mission.state() != AP_Mission::MISSION_RUNNING) {
copter.mission.start_or_resume();
}
result = MAV_RESULT_ACCEPTED;
}
break;
case MAV_CMD_PREFLIGHT_CALIBRATION:
// exit immediately if armed
if (copter.motors->armed()) {
result = MAV_RESULT_FAILED;
break;
}
if (is_equal(packet.param1,1.0f)) {
if (copter.calibrate_gyros()) {
result = MAV_RESULT_ACCEPTED;
} else {
result = MAV_RESULT_FAILED;
}
} else if (is_equal(packet.param3,1.0f)) {
// fast barometer calibration
copter.init_barometer(false);
result = MAV_RESULT_ACCEPTED;
} else if (is_equal(packet.param4,1.0f)) {
result = MAV_RESULT_UNSUPPORTED;
} else if (is_equal(packet.param5,1.0f)) {
// 3d accel calibration
result = MAV_RESULT_ACCEPTED;
if (!copter.calibrate_gyros()) {
result = MAV_RESULT_FAILED;
break;
}
copter.ins.acal_init();
copter.ins.get_acal()->start(this);
} else if (is_equal(packet.param5,2.0f)) {
// calibrate gyros
if (!copter.calibrate_gyros()) {
result = MAV_RESULT_FAILED;
break;
}
// accel trim
float trim_roll, trim_pitch;
if(copter.ins.calibrate_trim(trim_roll, trim_pitch)) {
// reset ahrs's trim to suggested values from calibration routine
copter.ahrs.set_trim(Vector3f(trim_roll, trim_pitch, 0));
result = MAV_RESULT_ACCEPTED;
} else {
result = MAV_RESULT_FAILED;
}
} else if (is_equal(packet.param5,4.0f)) {
// simple accel calibration
result = copter.ins.simple_accel_cal(copter.ahrs);
} else if (is_equal(packet.param6,1.0f)) {
// compassmot calibration
result = copter.mavlink_compassmot(chan);
}
break;
case MAV_CMD_COMPONENT_ARM_DISARM:
if (is_equal(packet.param1,1.0f)) {
// attempt to arm and return success or failure
if (copter.init_arm_motors(true)) {
result = MAV_RESULT_ACCEPTED;
}
} else if (is_zero(packet.param1) && (copter.ap.land_complete || is_equal(packet.param2,21196.0f))) {
// force disarming by setting param2 = 21196 is deprecated
copter.init_disarm_motors();
result = MAV_RESULT_ACCEPTED;
} else {
result = MAV_RESULT_UNSUPPORTED;
}
break;
case MAV_CMD_GET_HOME_POSITION:
if (copter.ap.home_state != HOME_UNSET) {
send_home(copter.ahrs.get_home());// reference position for NED positions
Location ekf_origin;
if (copter.ahrs.get_origin(ekf_origin)) {
send_ekf_origin(ekf_origin);
}
result = MAV_RESULT_ACCEPTED;
} else {
result = MAV_RESULT_FAILED;
}
break;
case MAV_CMD_PREFLIGHT_REBOOT_SHUTDOWN:
if (is_equal(packet.param1,1.0f) || is_equal(packet.param1,3.0f)) {
AP_Notify::flags.firmware_update = 1;
copter.update_notify();
hal.scheduler->delay(200);
// when packet.param1 == 3 we reboot to hold in bootloader
hal.scheduler->reboot(is_equal(packet.param1,3.0f));
result = MAV_RESULT_ACCEPTED;
}
break;
case MAV_CMD_DO_FENCE_ENABLE:
#if AC_FENCE == ENABLED
result = MAV_RESULT_ACCEPTED;
switch ((uint16_t)packet.param1) {
case 0:
copter.fence.enable(false);
break;
case 1:
copter.fence.enable(true);
break;
default:
result = MAV_RESULT_FAILED;
break;
}
#else
// if fence code is not included return failure
result = MAV_RESULT_FAILED;
#endif
break;
#if PARACHUTE == ENABLED
case MAV_CMD_DO_PARACHUTE:
// configure or release parachute
result = MAV_RESULT_ACCEPTED;
switch ((uint16_t)packet.param1) {
case PARACHUTE_DISABLE:
copter.parachute.enabled(false);
copter.Log_Write_Event(DATA_PARACHUTE_DISABLED);
break;
case PARACHUTE_ENABLE:
copter.parachute.enabled(true);
copter.Log_Write_Event(DATA_PARACHUTE_ENABLED);
break;
case PARACHUTE_RELEASE:
// treat as a manual release which performs some additional check of altitude
copter.parachute_manual_release();
break;
default:
result = MAV_RESULT_FAILED;
break;
}
break;
#endif
case MAV_CMD_DO_MOTOR_TEST:
// param1 : motor sequence number (a number from 1 to max number of motors on the vehicle)
// param2 : throttle type (0=throttle percentage, 1=PWM, 2=pilot throttle channel pass-through. See MOTOR_TEST_THROTTLE_TYPE enum)
// param3 : throttle (range depends upon param2)
// param4 : timeout (in seconds)
// param5 : num_motors (in sequence)
// param6 : compass learning (0: disabled, 1: enabled)
result = copter.mavlink_motor_test_start(chan, (uint8_t)packet.param1, (uint8_t)packet.param2, (uint16_t)packet.param3,
packet.param4, (uint8_t)packet.param5);
break;
#if GRIPPER_ENABLED == ENABLED
case MAV_CMD_DO_GRIPPER:
// param1 : gripper number (ignored)
// param2 : action (0=release, 1=grab). See GRIPPER_ACTIONS enum.
if(!copter.g2.gripper.enabled()) {
result = MAV_RESULT_FAILED;
} else {
result = MAV_RESULT_ACCEPTED;
switch ((uint8_t)packet.param2) {
case GRIPPER_ACTION_RELEASE:
copter.g2.gripper.release();
break;
case GRIPPER_ACTION_GRAB:
copter.g2.gripper.grab();
break;
default:
result = MAV_RESULT_FAILED;
break;
}
}
break;
#endif
case MAV_CMD_DO_WINCH:
// param1 : winch number (ignored)
// param2 : action (0=relax, 1=relative length control, 2=rate control). See WINCH_ACTIONS enum.
if (!copter.g2.winch.enabled()) {
result = MAV_RESULT_FAILED;
} else {
result = MAV_RESULT_ACCEPTED;
switch ((uint8_t)packet.param2) {
case WINCH_RELAXED:
copter.g2.winch.relax();
copter.Log_Write_Event(DATA_WINCH_RELAXED);
break;
case WINCH_RELATIVE_LENGTH_CONTROL: {
copter.g2.winch.release_length(packet.param3, fabsf(packet.param4));
copter.Log_Write_Event(DATA_WINCH_LENGTH_CONTROL);
break;
}
case WINCH_RATE_CONTROL: {
if (fabsf(packet.param4) <= copter.g2.winch.get_rate_max()) {
copter.g2.winch.set_desired_rate(packet.param4);
copter.Log_Write_Event(DATA_WINCH_RATE_CONTROL);
} else {
result = MAV_RESULT_FAILED;
}
break;
}
default:
result = MAV_RESULT_FAILED;
break;
}
}
break;
/* Solo user presses Fly button */
case MAV_CMD_SOLO_BTN_FLY_CLICK: {
result = MAV_RESULT_ACCEPTED;
if (copter.failsafe.radio) {
break;
}
// set mode to Loiter or fall back to AltHold
if (!copter.set_mode(LOITER, MODE_REASON_GCS_COMMAND)) {
copter.set_mode(ALT_HOLD, MODE_REASON_GCS_COMMAND);
}
break;
}
/* Solo user holds down Fly button for a couple of seconds */
case MAV_CMD_SOLO_BTN_FLY_HOLD: {
result = MAV_RESULT_ACCEPTED;
if (copter.failsafe.radio) {
break;
}
if (!copter.motors->armed()) {
// if disarmed, arm motors
copter.init_arm_motors(true);
} else if (copter.ap.land_complete) {
// if armed and landed, takeoff
if (copter.set_mode(LOITER, MODE_REASON_GCS_COMMAND)) {
copter.do_user_takeoff(packet.param1*100, true);
}
} else {
// if flying, land
copter.set_mode(LAND, MODE_REASON_GCS_COMMAND);
}
break;
}
/* Solo user presses pause button */
case MAV_CMD_SOLO_BTN_PAUSE_CLICK: {
result = MAV_RESULT_ACCEPTED;
if (copter.failsafe.radio) {
break;
}
if (copter.motors->armed()) {
if (copter.ap.land_complete) {
// if landed, disarm motors
copter.init_disarm_motors();
} else {
// assume that shots modes are all done in guided.
// NOTE: this may need to change if we add a non-guided shot mode
bool shot_mode = (!is_zero(packet.param1) && (copter.control_mode == GUIDED || copter.control_mode == GUIDED_NOGPS));
if (!shot_mode) {
if (copter.set_mode(BRAKE, MODE_REASON_GCS_COMMAND)) {
copter.mode_brake.timeout_to_loiter_ms(2500);
} else {
copter.set_mode(ALT_HOLD, MODE_REASON_GCS_COMMAND);
}
} else {
// SoloLink is expected to handle pause in shots
}
}
}
break;
}
case MAV_CMD_ACCELCAL_VEHICLE_POS:
result = MAV_RESULT_FAILED;
if (copter.ins.get_acal()->gcs_vehicle_position(packet.param1)) {
result = MAV_RESULT_ACCEPTED;
}
break;
default:
result = handle_command_long_message(packet);
break;
}
// send ACK or NAK
mavlink_msg_command_ack_send_buf(msg, chan, packet.command, result);
break;
}
case MAVLINK_MSG_ID_COMMAND_ACK: // MAV ID: 77
{
copter.command_ack_counter++;
break;
}
case MAVLINK_MSG_ID_SET_ATTITUDE_TARGET: // MAV ID: 82
{
// decode packet
mavlink_set_attitude_target_t packet;
mavlink_msg_set_attitude_target_decode(msg, &packet);
// exit if vehicle is not in Guided mode or Auto-Guided mode
if ((copter.control_mode != GUIDED) && (copter.control_mode != GUIDED_NOGPS) && !(copter.control_mode == AUTO && copter.mode_auto.mode() == Auto_NavGuided)) {
break;
}
// ensure type_mask specifies to use attitude and thrust
if ((packet.type_mask & ((1<<7)|(1<<6))) != 0) {
break;
}
// convert thrust to climb rate
packet.thrust = constrain_float(packet.thrust, 0.0f, 1.0f);
float climb_rate_cms = 0.0f;
if (is_equal(packet.thrust, 0.5f)) {
climb_rate_cms = 0.0f;
} else if (packet.thrust > 0.5f) {
// climb at up to WPNAV_SPEED_UP
climb_rate_cms = (packet.thrust - 0.5f) * 2.0f * copter.wp_nav->get_speed_up();
} else {
// descend at up to WPNAV_SPEED_DN
climb_rate_cms = (0.5f - packet.thrust) * 2.0f * -fabsf(copter.wp_nav->get_speed_down());
}
// if the body_yaw_rate field is ignored, use the commanded yaw position
// otherwise use the commanded yaw rate
bool use_yaw_rate = false;
if ((packet.type_mask & (1<<2)) == 0) {
use_yaw_rate = true;
}
copter.mode_guided.set_angle(Quaternion(packet.q[0],packet.q[1],packet.q[2],packet.q[3]),
climb_rate_cms, use_yaw_rate, packet.body_yaw_rate);
break;
}
case MAVLINK_MSG_ID_SET_POSITION_TARGET_LOCAL_NED: // MAV ID: 84
{
// decode packet
mavlink_set_position_target_local_ned_t packet;
mavlink_msg_set_position_target_local_ned_decode(msg, &packet);
// exit if vehicle is not in Guided mode or Auto-Guided mode
if ((copter.control_mode != GUIDED) && !(copter.control_mode == AUTO && copter.mode_auto.mode() == Auto_NavGuided)) {
break;
}
// check for supported coordinate frames
if (packet.coordinate_frame != MAV_FRAME_LOCAL_NED &&
packet.coordinate_frame != MAV_FRAME_LOCAL_OFFSET_NED &&
packet.coordinate_frame != MAV_FRAME_BODY_NED &&
packet.coordinate_frame != MAV_FRAME_BODY_OFFSET_NED) {
break;
}
bool pos_ignore = packet.type_mask & MAVLINK_SET_POS_TYPE_MASK_POS_IGNORE;
bool vel_ignore = packet.type_mask & MAVLINK_SET_POS_TYPE_MASK_VEL_IGNORE;
bool acc_ignore = packet.type_mask & MAVLINK_SET_POS_TYPE_MASK_ACC_IGNORE;
bool yaw_ignore = packet.type_mask & MAVLINK_SET_POS_TYPE_MASK_YAW_IGNORE;
bool yaw_rate_ignore = packet.type_mask & MAVLINK_SET_POS_TYPE_MASK_YAW_RATE_IGNORE;
/*
* for future use:
* bool force = packet.type_mask & MAVLINK_SET_POS_TYPE_MASK_FORCE;
*/
// prepare position
Vector3f pos_vector;
if (!pos_ignore) {
// convert to cm
pos_vector = Vector3f(packet.x * 100.0f, packet.y * 100.0f, -packet.z * 100.0f);
// rotate to body-frame if necessary
if (packet.coordinate_frame == MAV_FRAME_BODY_NED ||
packet.coordinate_frame == MAV_FRAME_BODY_OFFSET_NED) {
copter.rotate_body_frame_to_NE(pos_vector.x, pos_vector.y);
}
// add body offset if necessary
if (packet.coordinate_frame == MAV_FRAME_LOCAL_OFFSET_NED ||
packet.coordinate_frame == MAV_FRAME_BODY_NED ||
packet.coordinate_frame == MAV_FRAME_BODY_OFFSET_NED) {
pos_vector += copter.inertial_nav.get_position();
} else {
// convert from alt-above-home to alt-above-ekf-origin
pos_vector.z = copter.pv_alt_above_origin(pos_vector.z);
}
}
// prepare velocity
Vector3f vel_vector;
if (!vel_ignore) {
// convert to cm
vel_vector = Vector3f(packet.vx * 100.0f, packet.vy * 100.0f, -packet.vz * 100.0f);
// rotate to body-frame if necessary
if (packet.coordinate_frame == MAV_FRAME_BODY_NED || packet.coordinate_frame == MAV_FRAME_BODY_OFFSET_NED) {
copter.rotate_body_frame_to_NE(vel_vector.x, vel_vector.y);
}
}
// prepare yaw
float yaw_cd = 0.0f;
bool yaw_relative = false;
float yaw_rate_cds = 0.0f;
if (!yaw_ignore) {
yaw_cd = ToDeg(packet.yaw) * 100.0f;
yaw_relative = packet.coordinate_frame == MAV_FRAME_BODY_NED || packet.coordinate_frame == MAV_FRAME_BODY_OFFSET_NED;
}
if (!yaw_rate_ignore) {
yaw_rate_cds = ToDeg(packet.yaw_rate) * 100.0f;
}
// send request
if (!pos_ignore && !vel_ignore && acc_ignore) {
if (copter.mode_guided.set_destination_posvel(pos_vector, vel_vector, !yaw_ignore, yaw_cd, !yaw_rate_ignore, yaw_rate_cds, yaw_relative)) {
result = MAV_RESULT_ACCEPTED;
} else {
result = MAV_RESULT_FAILED;
}
} else if (pos_ignore && !vel_ignore && acc_ignore) {
copter.mode_guided.set_velocity(vel_vector, !yaw_ignore, yaw_cd, !yaw_rate_ignore, yaw_rate_cds, yaw_relative);
result = MAV_RESULT_ACCEPTED;
} else if (!pos_ignore && vel_ignore && acc_ignore) {
if (copter.mode_guided.set_destination(pos_vector, !yaw_ignore, yaw_cd, !yaw_rate_ignore, yaw_rate_cds, yaw_relative)) {
result = MAV_RESULT_ACCEPTED;
} else {
result = MAV_RESULT_FAILED;
}
} else {
result = MAV_RESULT_FAILED;
}
break;
}
case MAVLINK_MSG_ID_SET_POSITION_TARGET_GLOBAL_INT: // MAV ID: 86
{
// decode packet
mavlink_set_position_target_global_int_t packet;
mavlink_msg_set_position_target_global_int_decode(msg, &packet);
// exit if vehicle is not in Guided mode or Auto-Guided mode
if ((copter.control_mode != GUIDED) && !(copter.control_mode == AUTO && copter.mode_auto.mode() == Auto_NavGuided)) {
break;
}
// check for supported coordinate frames
if (packet.coordinate_frame != MAV_FRAME_GLOBAL &&
packet.coordinate_frame != MAV_FRAME_GLOBAL_INT &&
packet.coordinate_frame != MAV_FRAME_GLOBAL_RELATIVE_ALT && // solo shot manager incorrectly sends RELATIVE_ALT instead of RELATIVE_ALT_INT
packet.coordinate_frame != MAV_FRAME_GLOBAL_RELATIVE_ALT_INT &&
packet.coordinate_frame != MAV_FRAME_GLOBAL_TERRAIN_ALT &&
packet.coordinate_frame != MAV_FRAME_GLOBAL_TERRAIN_ALT_INT) {
break;
}
bool pos_ignore = packet.type_mask & MAVLINK_SET_POS_TYPE_MASK_POS_IGNORE;
bool vel_ignore = packet.type_mask & MAVLINK_SET_POS_TYPE_MASK_VEL_IGNORE;
bool acc_ignore = packet.type_mask & MAVLINK_SET_POS_TYPE_MASK_ACC_IGNORE;
bool yaw_ignore = packet.type_mask & MAVLINK_SET_POS_TYPE_MASK_YAW_IGNORE;
bool yaw_rate_ignore = packet.type_mask & MAVLINK_SET_POS_TYPE_MASK_YAW_RATE_IGNORE;
/*
* for future use:
* bool force = packet.type_mask & MAVLINK_SET_POS_TYPE_MASK_FORCE;
*/
Vector3f pos_neu_cm; // position (North, East, Up coordinates) in centimeters
if(!pos_ignore) {
// sanity check location
if (!check_latlng(packet.lat_int, packet.lon_int)) {
result = MAV_RESULT_FAILED;
break;
}
Location loc;
loc.lat = packet.lat_int;
loc.lng = packet.lon_int;
loc.alt = packet.alt*100;
switch (packet.coordinate_frame) {
case MAV_FRAME_GLOBAL_RELATIVE_ALT: // solo shot manager incorrectly sends RELATIVE_ALT instead of RELATIVE_ALT_INT
case MAV_FRAME_GLOBAL_RELATIVE_ALT_INT:
loc.flags.relative_alt = true;
loc.flags.terrain_alt = false;
break;
case MAV_FRAME_GLOBAL_TERRAIN_ALT:
case MAV_FRAME_GLOBAL_TERRAIN_ALT_INT:
loc.flags.relative_alt = true;
loc.flags.terrain_alt = true;
break;
case MAV_FRAME_GLOBAL:
case MAV_FRAME_GLOBAL_INT:
default:
// pv_location_to_vector does not support absolute altitudes.
// Convert the absolute altitude to a home-relative altitude before calling pv_location_to_vector
loc.alt -= copter.ahrs.get_home().alt;
loc.flags.relative_alt = true;
loc.flags.terrain_alt = false;
break;
}
pos_neu_cm = copter.pv_location_to_vector(loc);
}
// prepare yaw
float yaw_cd = 0.0f;
bool yaw_relative = false;
float yaw_rate_cds = 0.0f;
if (!yaw_ignore) {
yaw_cd = ToDeg(packet.yaw) * 100.0f;
yaw_relative = packet.coordinate_frame == MAV_FRAME_BODY_NED || packet.coordinate_frame == MAV_FRAME_BODY_OFFSET_NED;
}
if (!yaw_rate_ignore) {
yaw_rate_cds = ToDeg(packet.yaw_rate) * 100.0f;
}
if (!pos_ignore && !vel_ignore && acc_ignore) {
if (copter.mode_guided.set_destination_posvel(pos_neu_cm, Vector3f(packet.vx * 100.0f, packet.vy * 100.0f, -packet.vz * 100.0f), !yaw_ignore, yaw_cd, !yaw_rate_ignore, yaw_rate_cds, yaw_relative)) {
result = MAV_RESULT_ACCEPTED;
} else {
result = MAV_RESULT_FAILED;
}
} else if (pos_ignore && !vel_ignore && acc_ignore) {
copter.mode_guided.set_velocity(Vector3f(packet.vx * 100.0f, packet.vy * 100.0f, -packet.vz * 100.0f), !yaw_ignore, yaw_cd, !yaw_rate_ignore, yaw_rate_cds, yaw_relative);
result = MAV_RESULT_ACCEPTED;
} else if (!pos_ignore && vel_ignore && acc_ignore) {
if (copter.mode_guided.set_destination(pos_neu_cm, !yaw_ignore, yaw_cd, !yaw_rate_ignore, yaw_rate_cds, yaw_relative)) {
result = MAV_RESULT_ACCEPTED;
} else {
result = MAV_RESULT_FAILED;
}
} else {
result = MAV_RESULT_FAILED;
}
break;
}
case MAVLINK_MSG_ID_DISTANCE_SENSOR:
{
result = MAV_RESULT_ACCEPTED;
copter.rangefinder.handle_msg(msg);
#if PROXIMITY_ENABLED == ENABLED
copter.g2.proximity.handle_msg(msg);
#endif
break;
}
#if HIL_MODE != HIL_MODE_DISABLED
case MAVLINK_MSG_ID_HIL_STATE: // MAV ID: 90
{
mavlink_hil_state_t packet;
mavlink_msg_hil_state_decode(msg, &packet);
// sanity check location
if (!check_latlng(packet.lat, packet.lon)) {
break;
}
// set gps hil sensor
Location loc;
loc.lat = packet.lat;
loc.lng = packet.lon;
loc.alt = packet.alt/10;
Vector3f vel(packet.vx, packet.vy, packet.vz);
vel *= 0.01f;
gps.setHIL(0, AP_GPS::GPS_OK_FIX_3D,
packet.time_usec/1000,
loc, vel, 10, 0);
// rad/sec
Vector3f gyros;
gyros.x = packet.rollspeed;
gyros.y = packet.pitchspeed;
gyros.z = packet.yawspeed;
// m/s/s
Vector3f accels;
accels.x = packet.xacc * (GRAVITY_MSS/1000.0f);
accels.y = packet.yacc * (GRAVITY_MSS/1000.0f);
accels.z = packet.zacc * (GRAVITY_MSS/1000.0f);
ins.set_gyro(0, gyros);
ins.set_accel(0, accels);
copter.barometer.setHIL(packet.alt*0.001f);
copter.compass.setHIL(0, packet.roll, packet.pitch, packet.yaw);
copter.compass.setHIL(1, packet.roll, packet.pitch, packet.yaw);
break;
}
#endif // HIL_MODE != HIL_MODE_DISABLED
case MAVLINK_MSG_ID_RADIO:
case MAVLINK_MSG_ID_RADIO_STATUS: // MAV ID: 109
{
handle_radio_status(msg, copter.DataFlash, copter.should_log(MASK_LOG_PM));
break;
}
#if PRECISION_LANDING == ENABLED
case MAVLINK_MSG_ID_LANDING_TARGET:
result = MAV_RESULT_ACCEPTED;
copter.precland.handle_msg(msg);
break;
#endif
#if AC_FENCE == ENABLED
// send or receive fence points with GCS
case MAVLINK_MSG_ID_FENCE_POINT: // MAV ID: 160
case MAVLINK_MSG_ID_FENCE_FETCH_POINT:
copter.fence.handle_msg(*this, msg);
break;
#endif // AC_FENCE == ENABLED
#if MOUNT == ENABLED
//deprecated. Use MAV_CMD_DO_MOUNT_CONFIGURE
case MAVLINK_MSG_ID_MOUNT_CONFIGURE: // MAV ID: 204
copter.camera_mount.configure_msg(msg);
break;
//deprecated. Use MAV_CMD_DO_MOUNT_CONTROL
case MAVLINK_MSG_ID_MOUNT_CONTROL:
if(!copter.camera_mount.has_pan_control()) {
copter.set_auto_yaw_look_at_heading(mavlink_msg_mount_control_get_input_c(msg)/100.0f, 0.0f, 0, 0);
}
copter.camera_mount.control_msg(msg);
break;
#endif // MOUNT == ENABLED
case MAVLINK_MSG_ID_TERRAIN_DATA:
case MAVLINK_MSG_ID_TERRAIN_CHECK:
#if AP_TERRAIN_AVAILABLE && AC_TERRAIN
copter.terrain.handle_data(chan, msg);
#endif
break;
case MAVLINK_MSG_ID_SET_HOME_POSITION:
{
mavlink_set_home_position_t packet;
mavlink_msg_set_home_position_decode(msg, &packet);
if((packet.latitude == 0) && (packet.longitude == 0) && (packet.altitude == 0)) {
copter.set_home_to_current_location(true);
} else {
// sanity check location
if (!check_latlng(packet.latitude, packet.longitude)) {
break;
}
Location new_home_loc;
new_home_loc.lat = packet.latitude;
new_home_loc.lng = packet.longitude;
new_home_loc.alt = packet.altitude / 10;
copter.set_home(new_home_loc, true);
}
break;
}
case MAVLINK_MSG_ID_ADSB_VEHICLE:
case MAVLINK_MSG_ID_UAVIONIX_ADSB_OUT_CFG:
case MAVLINK_MSG_ID_UAVIONIX_ADSB_OUT_DYNAMIC:
case MAVLINK_MSG_ID_UAVIONIX_ADSB_TRANSCEIVER_HEALTH_REPORT:
#if ADSB_ENABLED == ENABLED
copter.adsb.handle_message(chan, msg);
#endif
break;
case MAVLINK_MSG_ID_VISION_POSITION_DELTA:
#if VISUAL_ODOMETRY_ENABLED == ENABLED
copter.g2.visual_odom.handle_msg(msg);
#endif
break;
#if TOY_MODE_ENABLED == ENABLED
case MAVLINK_MSG_ID_NAMED_VALUE_INT:
copter.g2.toy_mode.handle_message(msg);
break;
#endif
default:
handle_common_message(msg);
break;
} // end switch
} // end handle mavlink真的是，流水文。
类似资料：