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GCS_Mavlink.pde
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GCS_Mavlink.pde
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// -*- tab-width: 4; Mode: C++; c-basic-offset: 4; indent-tabs-mode: nil -*-
// use this to prevent recursion during sensor init
static bool in_mavlink_delay;
// true when we have received at least 1 MAVLink packet
static bool mavlink_active;
// check if a message will fit in the payload space available
#define CHECK_PAYLOAD_SIZE(id) if (payload_space < MAVLINK_MSG_ID_ ## id ## _LEN) return false
/*
* !!NOTE!!
*
* the use of NOINLINE separate functions for each message type avoids
* a compiler bug in gcc that would cause it to use far more stack
* space than is needed. Without the NOINLINE we use the sum of the
* stack needed for each message type. Please be careful to follow the
* pattern below when adding any new messages
*/
static NOINLINE void send_heartbeat(mavlink_channel_t chan)
{
uint8_t base_mode = MAV_MODE_FLAG_CUSTOM_MODE_ENABLED;
uint8_t system_status = MAV_STATE_ACTIVE;
uint32_t custom_mode = control_mode;
if (failsafe != FAILSAFE_NONE) {
system_status = MAV_STATE_CRITICAL;
}
// work out the base_mode. This value is not very useful
// for APM, but we calculate it as best we can so a generic
// MAVLink enabled ground station can work out something about
// what the MAV is up to. The actual bit values are highly
// ambiguous for most of the APM flight modes. In practice, you
// only get useful information from the custom_mode, which maps to
// the APM flight mode and has a well defined meaning in the
// ArduPlane documentation
switch (control_mode) {
case MANUAL:
case TRAINING:
base_mode = MAV_MODE_FLAG_MANUAL_INPUT_ENABLED;
break;
case STABILIZE:
case FLY_BY_WIRE_A:
case FLY_BY_WIRE_B:
base_mode = MAV_MODE_FLAG_STABILIZE_ENABLED;
break;
case AUTO:
case RTL:
case LOITER:
case GUIDED:
case CIRCLE:
base_mode = MAV_MODE_FLAG_GUIDED_ENABLED |
MAV_MODE_FLAG_STABILIZE_ENABLED;
// note that MAV_MODE_FLAG_AUTO_ENABLED does not match what
// APM does in any mode, as that is defined as "system finds its own goal
// positions", which APM does not currently do
break;
case INITIALISING:
system_status = MAV_STATE_CALIBRATING;
break;
}
if (!training_manual_pitch || !training_manual_roll) {
base_mode |= MAV_MODE_FLAG_STABILIZE_ENABLED;
}
if (control_mode != MANUAL && control_mode != INITIALISING) {
// stabiliser of some form is enabled
base_mode |= MAV_MODE_FLAG_STABILIZE_ENABLED;
}
if (g.stick_mixing != STICK_MIXING_DISABLED && control_mode != INITIALISING) {
// all modes except INITIALISING have some form of manual
// override if stick mixing is enabled
base_mode |= MAV_MODE_FLAG_MANUAL_INPUT_ENABLED;
}
#if HIL_MODE != HIL_MODE_DISABLED
base_mode |= MAV_MODE_FLAG_HIL_ENABLED;
#endif
// we are armed if we are not initialising
if (control_mode != INITIALISING) {
base_mode |= MAV_MODE_FLAG_SAFETY_ARMED;
}
// indicate we have set a custom mode
base_mode |= MAV_MODE_FLAG_CUSTOM_MODE_ENABLED;
mavlink_msg_heartbeat_send(
chan,
MAV_TYPE_FIXED_WING,
MAV_AUTOPILOT_ARDUPILOTMEGA,
base_mode,
custom_mode,
system_status);
}
static NOINLINE void send_attitude(mavlink_channel_t chan)
{
Vector3f omega = ahrs.get_gyro();
mavlink_msg_attitude_send(
chan,
millis(),
ahrs.roll,
ahrs.pitch - radians(g.pitch_trim_cd*0.01),
ahrs.yaw,
omega.x,
omega.y,
omega.z);
}
#if GEOFENCE_ENABLED == ENABLED
static NOINLINE void send_fence_status(mavlink_channel_t chan)
{
geofence_send_status(chan);
}
#endif
static NOINLINE void send_extended_status1(mavlink_channel_t chan, uint16_t packet_drops)
{
uint32_t control_sensors_present = 0;
uint32_t control_sensors_enabled;
uint32_t control_sensors_health;
// first what sensors/controllers we have
control_sensors_present |= (1<<0); // 3D gyro present
control_sensors_present |= (1<<1); // 3D accelerometer present
if (g.compass_enabled) {
control_sensors_present |= (1<<2); // compass present
}
control_sensors_present |= (1<<3); // absolute pressure sensor present
if (g_gps != NULL && g_gps->status() >= GPS::NO_GPS) {
control_sensors_present |= (1<<5); // GPS present
}
control_sensors_present |= (1<<10); // 3D angular rate control
control_sensors_present |= (1<<11); // attitude stabilisation
control_sensors_present |= (1<<12); // yaw position
control_sensors_present |= (1<<13); // altitude control
control_sensors_present |= (1<<14); // X/Y position control
control_sensors_present |= (1<<15); // motor control
// now what sensors/controllers are enabled
// first the sensors
control_sensors_enabled = control_sensors_present & 0x1FF;
// now the controllers
control_sensors_enabled = control_sensors_present & 0x1FF;
switch (control_mode) {
case MANUAL:
break;
case STABILIZE:
case FLY_BY_WIRE_A:
control_sensors_enabled |= (1<<10); // 3D angular rate control
control_sensors_enabled |= (1<<11); // attitude stabilisation
break;
case FLY_BY_WIRE_B:
control_sensors_enabled |= (1<<10); // 3D angular rate control
control_sensors_enabled |= (1<<11); // attitude stabilisation
control_sensors_enabled |= (1<<15); // motor control
break;
case TRAINING:
if (!training_manual_roll || !training_manual_pitch) {
control_sensors_enabled |= (1<<10); // 3D angular rate control
control_sensors_enabled |= (1<<11); // attitude stabilisation
}
break;
case AUTO:
case RTL:
case LOITER:
case GUIDED:
case CIRCLE:
control_sensors_enabled |= (1<<10); // 3D angular rate control
control_sensors_enabled |= (1<<11); // attitude stabilisation
control_sensors_enabled |= (1<<12); // yaw position
control_sensors_enabled |= (1<<13); // altitude control
control_sensors_enabled |= (1<<14); // X/Y position control
control_sensors_enabled |= (1<<15); // motor control
break;
case INITIALISING:
break;
}
// at the moment all sensors/controllers are assumed healthy
control_sensors_health = control_sensors_present;
if (!ahrs.use_compass()) {
control_sensors_health &= ~(1<<2); // compass not being used
}
if (g_gps != NULL && g_gps->status() <= GPS::NO_FIX) {
control_sensors_health &= ~(1<<5); // GPS unhealthy
}
uint16_t battery_current = -1;
uint8_t battery_remaining = -1;
if (battery.current_total_mah != 0 && g.pack_capacity != 0) {
battery_remaining = (100.0 * (g.pack_capacity - battery.current_total_mah) / g.pack_capacity);
}
if (battery.current_total_mah != 0) {
battery_current = battery.current_amps * 100;
}
if (g.battery_monitoring == 3) {
/*setting a out-of-range value.
* It informs to external devices that
* it cannot be calculated properly just by voltage*/
battery_remaining = 150;
}
mavlink_msg_sys_status_send(
chan,
control_sensors_present,
control_sensors_enabled,
control_sensors_health,
(uint16_t)(load * 1000),
battery.voltage * 1000, // mV
battery_current, // in 10mA units
battery_remaining, // in %
0, // comm drops %,
0, // comm drops in pkts,
0, 0, 0, 0);
}
static void NOINLINE send_meminfo(mavlink_channel_t chan)
{
#if CONFIG_HAL_BOARD == HAL_BOARD_APM1 || CONFIG_HAL_BOARD == HAL_BOARD_APM2
extern unsigned __brkval;
mavlink_msg_meminfo_send(chan, __brkval, memcheck_available_memory());
#endif
}
static void NOINLINE send_location(mavlink_channel_t chan)
{
uint32_t fix_time;
// if we have a GPS fix, take the time as the last fix time. That
// allows us to correctly calculate velocities and extrapolate
// positions.
// If we don't have a GPS fix then we are dead reckoning, and will
// use the current boot time as the fix time.
if (g_gps->status() >= GPS::GPS_OK_FIX_2D) {
fix_time = g_gps->last_fix_time;
} else {
fix_time = millis();
}
mavlink_msg_global_position_int_send(
chan,
fix_time,
current_loc.lat, // in 1E7 degrees
current_loc.lng, // in 1E7 degrees
g_gps->altitude * 10, // millimeters above sea level
(current_loc.alt-home.alt) * 10, // millimeters above ground
g_gps->velocity_north() * 100, // X speed cm/s (+ve North)
g_gps->velocity_east() * 100, // Y speed cm/s (+ve East)
g_gps->velocity_down() * -100, // Z speed cm/s (+ve up)
ahrs.yaw_sensor);
}
static void NOINLINE send_nav_controller_output(mavlink_channel_t chan)
{
mavlink_msg_nav_controller_output_send(
chan,
nav_roll_cd * 0.01,
nav_pitch_cd * 0.01,
nav_controller->nav_bearing_cd() * 0.01f,
nav_controller->target_bearing_cd() * 0.01f,
wp_distance,
altitude_error_cm * 0.01,
airspeed_error_cm,
nav_controller->crosstrack_error());
}
static void NOINLINE send_gps_raw(mavlink_channel_t chan)
{
mavlink_msg_gps_raw_int_send(
chan,
g_gps->last_fix_time*(uint64_t)1000,
g_gps->status(),
g_gps->latitude, // in 1E7 degrees
g_gps->longitude, // in 1E7 degrees
g_gps->altitude * 10, // in mm
g_gps->hdop,
65535,
g_gps->ground_speed, // cm/s
g_gps->ground_course, // 1/100 degrees,
g_gps->num_sats);
}
static void NOINLINE send_servo_out(mavlink_channel_t chan)
{
// normalized values scaled to -10000 to 10000
// This is used for HIL. Do not change without discussing with
// HIL maintainers
mavlink_msg_rc_channels_scaled_send(
chan,
millis(),
0, // port 0
10000 * g.channel_roll.norm_output(),
10000 * g.channel_pitch.norm_output(),
10000 * g.channel_throttle.norm_output(),
10000 * g.channel_rudder.norm_output(),
0,
0,
0,
0,
receiver_rssi);
}
static void NOINLINE send_radio_in(mavlink_channel_t chan)
{
mavlink_msg_rc_channels_raw_send(
chan,
millis(),
0, // port
hal.rcin->read(CH_1),
hal.rcin->read(CH_2),
hal.rcin->read(CH_3),
hal.rcin->read(CH_4),
hal.rcin->read(CH_5),
hal.rcin->read(CH_6),
hal.rcin->read(CH_7),
hal.rcin->read(CH_8),
receiver_rssi);
}
static void NOINLINE send_radio_out(mavlink_channel_t chan)
{
#if HIL_MODE != HIL_MODE_DISABLED
if (!g.hil_servos) {
extern RC_Channel* rc_ch[8];
mavlink_msg_servo_output_raw_send(
chan,
micros(),
0, // port
rc_ch[0]->radio_out,
rc_ch[1]->radio_out,
rc_ch[2]->radio_out,
rc_ch[3]->radio_out,
rc_ch[4]->radio_out,
rc_ch[5]->radio_out,
rc_ch[6]->radio_out,
rc_ch[7]->radio_out);
return;
}
#endif
mavlink_msg_servo_output_raw_send(
chan,
micros(),
0, // port
hal.rcout->read(0),
hal.rcout->read(1),
hal.rcout->read(2),
hal.rcout->read(3),
hal.rcout->read(4),
hal.rcout->read(5),
hal.rcout->read(6),
hal.rcout->read(7));
}
static void NOINLINE send_vfr_hud(mavlink_channel_t chan)
{
float aspeed;
if (airspeed.enabled()) {
aspeed = airspeed.get_airspeed();
} else if (!ahrs.airspeed_estimate(&aspeed)) {
aspeed = 0;
}
float throttle_norm = g.channel_throttle.norm_output() * 100;
throttle_norm = constrain_int16(throttle_norm, -100, 100);
uint16_t throttle = ((uint16_t)(throttle_norm + 100)) / 2;
mavlink_msg_vfr_hud_send(
chan,
aspeed,
(float)g_gps->ground_speed * 0.01,
(ahrs.yaw_sensor / 100) % 360,
throttle,
current_loc.alt / 100.0,
barometer.get_climb_rate());
}
static void NOINLINE send_raw_imu1(mavlink_channel_t chan)
{
Vector3f accel = ins.get_accel();
Vector3f gyro = ins.get_gyro();
mavlink_msg_raw_imu_send(
chan,
micros(),
accel.x * 1000.0 / GRAVITY_MSS,
accel.y * 1000.0 / GRAVITY_MSS,
accel.z * 1000.0 / GRAVITY_MSS,
gyro.x * 1000.0,
gyro.y * 1000.0,
gyro.z * 1000.0,
compass.mag_x,
compass.mag_y,
compass.mag_z);
}
static void NOINLINE send_raw_imu2(mavlink_channel_t chan)
{
int32_t pressure = barometer.get_pressure();
mavlink_msg_scaled_pressure_send(
chan,
millis(),
pressure/100.0,
(pressure - barometer.get_ground_pressure())/100.0,
barometer.get_temperature());
}
static void NOINLINE send_raw_imu3(mavlink_channel_t chan)
{
Vector3f mag_offsets = compass.get_offsets();
Vector3f accel_offsets = ins.get_accel_offsets();
Vector3f gyro_offsets = ins.get_gyro_offsets();
mavlink_msg_sensor_offsets_send(chan,
mag_offsets.x,
mag_offsets.y,
mag_offsets.z,
compass.get_declination(),
barometer.get_raw_pressure(),
barometer.get_raw_temp(),
gyro_offsets.x,
gyro_offsets.y,
gyro_offsets.z,
accel_offsets.x,
accel_offsets.y,
accel_offsets.z);
}
static void NOINLINE send_ahrs(mavlink_channel_t chan)
{
Vector3f omega_I = ahrs.get_gyro_drift();
mavlink_msg_ahrs_send(
chan,
omega_I.x,
omega_I.y,
omega_I.z,
0,
0,
ahrs.get_error_rp(),
ahrs.get_error_yaw());
}
// report simulator state
static void NOINLINE send_simstate(mavlink_channel_t chan)
{
#if CONFIG_HAL_BOARD == HAL_BOARD_AVR_SITL
sitl.simstate_send(chan);
#endif
}
static void NOINLINE send_hwstatus(mavlink_channel_t chan)
{
mavlink_msg_hwstatus_send(
chan,
board_voltage(),
hal.i2c->lockup_count());
}
static void NOINLINE send_wind(mavlink_channel_t chan)
{
Vector3f wind = ahrs.wind_estimate();
mavlink_msg_wind_send(
chan,
degrees(atan2f(-wind.y, -wind.x)), // use negative, to give
// direction wind is coming from
wind.length(),
wind.z);
}
static void NOINLINE send_current_waypoint(mavlink_channel_t chan)
{
mavlink_msg_mission_current_send(
chan,
g.command_index);
}
static void NOINLINE send_statustext(mavlink_channel_t chan)
{
mavlink_statustext_t *s = (chan == MAVLINK_COMM_0?&gcs0.pending_status:&gcs3.pending_status);
mavlink_msg_statustext_send(
chan,
s->severity,
s->text);
}
// are we still delaying telemetry to try to avoid Xbee bricking?
static bool telemetry_delayed(mavlink_channel_t chan)
{
uint32_t tnow = millis() >> 10;
if (tnow > (uint32_t)g.telem_delay) {
return false;
}
#if USB_MUX_PIN > 0
if (chan == MAVLINK_COMM_0 && usb_connected) {
// this is an APM2 with USB telemetry
return false;
}
// we're either on the 2nd UART, or no USB cable is connected
// we need to delay telemetry
return true;
#else
if (chan == MAVLINK_COMM_0) {
// we're on the USB port
return false;
}
// don't send telemetry yet
return true;
#endif
}
// try to send a message, return false if it won't fit in the serial tx buffer
static bool mavlink_try_send_message(mavlink_channel_t chan, enum ap_message id, uint16_t packet_drops)
{
int16_t payload_space = comm_get_txspace(chan) - MAVLINK_NUM_NON_PAYLOAD_BYTES;
if (telemetry_delayed(chan)) {
return false;
}
switch (id) {
case MSG_HEARTBEAT:
CHECK_PAYLOAD_SIZE(HEARTBEAT);
send_heartbeat(chan);
return true;
case MSG_EXTENDED_STATUS1:
CHECK_PAYLOAD_SIZE(SYS_STATUS);
send_extended_status1(chan, packet_drops);
break;
case MSG_EXTENDED_STATUS2:
CHECK_PAYLOAD_SIZE(MEMINFO);
send_meminfo(chan);
break;
case MSG_ATTITUDE:
CHECK_PAYLOAD_SIZE(ATTITUDE);
send_attitude(chan);
break;
case MSG_LOCATION:
CHECK_PAYLOAD_SIZE(GLOBAL_POSITION_INT);
send_location(chan);
break;
case MSG_NAV_CONTROLLER_OUTPUT:
if (control_mode != MANUAL) {
CHECK_PAYLOAD_SIZE(NAV_CONTROLLER_OUTPUT);
send_nav_controller_output(chan);
}
break;
case MSG_GPS_RAW:
CHECK_PAYLOAD_SIZE(GPS_RAW_INT);
send_gps_raw(chan);
break;
case MSG_SERVO_OUT:
CHECK_PAYLOAD_SIZE(RC_CHANNELS_SCALED);
send_servo_out(chan);
break;
case MSG_RADIO_IN:
CHECK_PAYLOAD_SIZE(RC_CHANNELS_RAW);
send_radio_in(chan);
break;
case MSG_RADIO_OUT:
CHECK_PAYLOAD_SIZE(SERVO_OUTPUT_RAW);
send_radio_out(chan);
break;
case MSG_VFR_HUD:
CHECK_PAYLOAD_SIZE(VFR_HUD);
send_vfr_hud(chan);
break;
case MSG_RAW_IMU1:
CHECK_PAYLOAD_SIZE(RAW_IMU);
send_raw_imu1(chan);
break;
case MSG_RAW_IMU2:
CHECK_PAYLOAD_SIZE(SCALED_PRESSURE);
send_raw_imu2(chan);
break;
case MSG_RAW_IMU3:
CHECK_PAYLOAD_SIZE(SENSOR_OFFSETS);
send_raw_imu3(chan);
break;
case MSG_CURRENT_WAYPOINT:
CHECK_PAYLOAD_SIZE(MISSION_CURRENT);
send_current_waypoint(chan);
break;
case MSG_NEXT_PARAM:
CHECK_PAYLOAD_SIZE(PARAM_VALUE);
if (chan == MAVLINK_COMM_0) {
gcs0.queued_param_send();
} else if (gcs3.initialised) {
gcs3.queued_param_send();
}
break;
case MSG_NEXT_WAYPOINT:
CHECK_PAYLOAD_SIZE(MISSION_REQUEST);
if (chan == MAVLINK_COMM_0) {
gcs0.queued_waypoint_send();
} else if (gcs3.initialised) {
gcs3.queued_waypoint_send();
}
break;
case MSG_STATUSTEXT:
CHECK_PAYLOAD_SIZE(STATUSTEXT);
send_statustext(chan);
break;
#if GEOFENCE_ENABLED == ENABLED
case MSG_FENCE_STATUS:
CHECK_PAYLOAD_SIZE(FENCE_STATUS);
send_fence_status(chan);
break;
#endif
case MSG_AHRS:
CHECK_PAYLOAD_SIZE(AHRS);
send_ahrs(chan);
break;
case MSG_SIMSTATE:
CHECK_PAYLOAD_SIZE(SIMSTATE);
send_simstate(chan);
break;
case MSG_HWSTATUS:
CHECK_PAYLOAD_SIZE(HWSTATUS);
send_hwstatus(chan);
break;
case MSG_WIND:
CHECK_PAYLOAD_SIZE(WIND);
send_wind(chan);
break;
case MSG_RETRY_DEFERRED:
break; // just here to prevent a warning
}
return true;
}
#define MAX_DEFERRED_MESSAGES MSG_RETRY_DEFERRED
static struct mavlink_queue {
enum ap_message deferred_messages[MAX_DEFERRED_MESSAGES];
uint8_t next_deferred_message;
uint8_t num_deferred_messages;
} mavlink_queue[2];
// send a message using mavlink
static void mavlink_send_message(mavlink_channel_t chan, enum ap_message id, uint16_t packet_drops)
{
uint8_t i, nextid;
struct mavlink_queue *q = &mavlink_queue[(uint8_t)chan];
// see if we can send the deferred messages, if any
while (q->num_deferred_messages != 0) {
if (!mavlink_try_send_message(chan,
q->deferred_messages[q->next_deferred_message],
packet_drops)) {
break;
}
q->next_deferred_message++;
if (q->next_deferred_message == MAX_DEFERRED_MESSAGES) {
q->next_deferred_message = 0;
}
q->num_deferred_messages--;
}
if (id == MSG_RETRY_DEFERRED) {
return;
}
// this message id might already be deferred
for (i=0, nextid = q->next_deferred_message; i < q->num_deferred_messages; i++) {
if (q->deferred_messages[nextid] == id) {
// its already deferred, discard
return;
}
nextid++;
if (nextid == MAX_DEFERRED_MESSAGES) {
nextid = 0;
}
}
if (q->num_deferred_messages != 0 ||
!mavlink_try_send_message(chan, id, packet_drops)) {
// can't send it now, so defer it
if (q->num_deferred_messages == MAX_DEFERRED_MESSAGES) {
// the defer buffer is full, discard
return;
}
nextid = q->next_deferred_message + q->num_deferred_messages;
if (nextid >= MAX_DEFERRED_MESSAGES) {
nextid -= MAX_DEFERRED_MESSAGES;
}
q->deferred_messages[nextid] = id;
q->num_deferred_messages++;
}
}
void mavlink_send_text(mavlink_channel_t chan, gcs_severity severity, const char *str)
{
if (telemetry_delayed(chan)) {
return;
}
if (severity == SEVERITY_LOW) {
// send via the deferred queuing system
mavlink_statustext_t *s = (chan == MAVLINK_COMM_0?&gcs0.pending_status:&gcs3.pending_status);
s->severity = (uint8_t)severity;
strncpy((char *)s->text, str, sizeof(s->text));
mavlink_send_message(chan, MSG_STATUSTEXT, 0);
} else {
// send immediately
mavlink_msg_statustext_send(chan, severity, str);
}
}
/*
default stream rates to 1Hz
*/
const AP_Param::GroupInfo GCS_MAVLINK::var_info[] PROGMEM = {
// @Param: RAW_SENS
// @DisplayName: Raw sensor stream rate
// @Description: Raw sensor stream rate to ground station
// @Units: Hz
// @Range: 0 10
// @Increment: 1
// @User: Advanced
AP_GROUPINFO("RAW_SENS", 0, GCS_MAVLINK, streamRates[0], 1),
// @Param: EXT_STAT
// @DisplayName: Extended status stream rate to ground station
// @Description: Extended status stream rate to ground station
// @Units: Hz
// @Range: 0 10
// @Increment: 1
// @User: Advanced
AP_GROUPINFO("EXT_STAT", 1, GCS_MAVLINK, streamRates[1], 1),
// @Param: RC_CHAN
// @DisplayName: RC Channel stream rate to ground station
// @Description: RC Channel stream rate to ground station
// @Units: Hz
// @Range: 0 10
// @Increment: 1
// @User: Advanced
AP_GROUPINFO("RC_CHAN", 2, GCS_MAVLINK, streamRates[2], 1),
// @Param: RAW_CTRL
// @DisplayName: Raw Control stream rate to ground station
// @Description: Raw Control stream rate to ground station
// @Units: Hz
// @Range: 0 10
// @Increment: 1
// @User: Advanced
AP_GROUPINFO("RAW_CTRL", 3, GCS_MAVLINK, streamRates[3], 1),
// @Param: POSITION
// @DisplayName: Position stream rate to ground station
// @Description: Position stream rate to ground station
// @Units: Hz
// @Range: 0 10
// @Increment: 1
// @User: Advanced
AP_GROUPINFO("POSITION", 4, GCS_MAVLINK, streamRates[4], 1),
// @Param: EXTRA1
// @DisplayName: Extra data type 1 stream rate to ground station
// @Description: Extra data type 1 stream rate to ground station
// @Units: Hz
// @Range: 0 10
// @Increment: 1
// @User: Advanced
AP_GROUPINFO("EXTRA1", 5, GCS_MAVLINK, streamRates[5], 1),
// @Param: EXTRA2
// @DisplayName: Extra data type 2 stream rate to ground station
// @Description: Extra data type 2 stream rate to ground station
// @Units: Hz
// @Range: 0 10
// @Increment: 1
// @User: Advanced
AP_GROUPINFO("EXTRA2", 6, GCS_MAVLINK, streamRates[6], 1),
// @Param: EXTRA3
// @DisplayName: Extra data type 3 stream rate to ground station
// @Description: Extra data type 3 stream rate to ground station
// @Units: Hz
// @Range: 0 10
// @Increment: 1
// @User: Advanced
AP_GROUPINFO("EXTRA3", 7, GCS_MAVLINK, streamRates[7], 1),
// @Param: PARAMS
// @DisplayName: Parameter stream rate to ground station
// @Description: Parameter stream rate to ground station
// @Units: Hz
// @Range: 0 10
// @Increment: 1
// @User: Advanced
AP_GROUPINFO("PARAMS", 8, GCS_MAVLINK, streamRates[8], 50),
AP_GROUPEND
};
GCS_MAVLINK::GCS_MAVLINK() :
packet_drops(0),
waypoint_send_timeout(1000), // 1 second
waypoint_receive_timeout(1000) // 1 second
{
AP_Param::setup_object_defaults(this, var_info);
}
void
GCS_MAVLINK::init(AP_HAL::UARTDriver *port)
{
GCS_Class::init(port);
if (port == (AP_HAL::BetterStream*)hal.uartA) {
mavlink_comm_0_port = port;
chan = MAVLINK_COMM_0;
}else{
mavlink_comm_1_port = port;
chan = MAVLINK_COMM_1;
}
_queued_parameter = NULL;
reset_cli_timeout();
}
void
GCS_MAVLINK::update(void)
{
// receive new packets
mavlink_message_t msg;
mavlink_status_t status;
status.packet_rx_drop_count = 0;
// process received bytes
uint16_t nbytes = comm_get_available(chan);
for (uint16_t i=0; i<nbytes; i++)
{
uint8_t c = comm_receive_ch(chan);
#if CLI_ENABLED == ENABLED
/* allow CLI to be started by hitting enter 3 times, if no
* heartbeat packets have been received */
if (mavlink_active == 0 && (millis() - _cli_timeout) < 20000 &&
comm_is_idle(chan)) {
if (c == '\n' || c == '\r') {
crlf_count++;
} else {
crlf_count = 0;
}
if (crlf_count == 3) {
run_cli(_port);
}
}
#endif
// Try to get a new message
if (mavlink_parse_char(chan, c, &msg, &status)) {
// we exclude radio packets to make it possible to use the
// CLI over the radio
if (msg.msgid != MAVLINK_MSG_ID_RADIO) {
mavlink_active = true;
}
handleMessage(&msg);
}
}
// Update packet drops counter
packet_drops += status.packet_rx_drop_count;
if (!waypoint_receiving) {
return;
}
uint32_t tnow = millis();
if (waypoint_receiving &&
waypoint_request_i <= waypoint_request_last &&
tnow > waypoint_timelast_request + 500 + (stream_slowdown*20)) {
waypoint_timelast_request = tnow;
send_message(MSG_NEXT_WAYPOINT);
}
// stop waypoint receiving if timeout
if (waypoint_receiving && (millis() - waypoint_timelast_receive) > waypoint_receive_timeout) {
waypoint_receiving = false;
}
}
// see if we should send a stream now. Called at 50Hz
bool GCS_MAVLINK::stream_trigger(enum streams stream_num)
{
if (stream_num >= NUM_STREAMS) {
return false;
}
float rate = (uint8_t)streamRates[stream_num].get();
// send at a much lower rate while handling waypoints and
// parameter sends
if (waypoint_receiving || _queued_parameter != NULL) {
rate *= 0.25;
}
if (rate <= 0) {
return false;
}
if (stream_ticks[stream_num] == 0) {
// we're triggering now, setup the next trigger point
if (rate > 50) {
rate = 50;
}
stream_ticks[stream_num] = (50 / rate) + stream_slowdown;
return true;
}
// count down at 50Hz
stream_ticks[stream_num]--;
return false;
}
void
GCS_MAVLINK::data_stream_send(void)
{
if (_queued_parameter != NULL) {
if (streamRates[STREAM_PARAMS].get() <= 0) {
streamRates[STREAM_PARAMS].set(50);
}
if (stream_trigger(STREAM_PARAMS)) {
send_message(MSG_NEXT_PARAM);
}
}
if (in_mavlink_delay) {
#if HIL_MODE != HIL_MODE_DISABLED
// in HIL we need to keep sending servo values to ensure
// the simulator doesn't pause, otherwise our sensor
// calibration could stall
if (stream_trigger(STREAM_RAW_CONTROLLER)) {
send_message(MSG_SERVO_OUT);
}
if (stream_trigger(STREAM_RC_CHANNELS)) {
send_message(MSG_RADIO_OUT);
}
#endif
// don't send any other stream types while in the delay callback
return;
}
if (stream_trigger(STREAM_RAW_SENSORS)) {
send_message(MSG_RAW_IMU1);
send_message(MSG_RAW_IMU2);
send_message(MSG_RAW_IMU3);
}
if (stream_trigger(STREAM_EXTENDED_STATUS)) {
send_message(MSG_EXTENDED_STATUS1);
send_message(MSG_EXTENDED_STATUS2);
send_message(MSG_CURRENT_WAYPOINT);
send_message(MSG_GPS_RAW); // TODO - remove this message after location message is working
send_message(MSG_NAV_CONTROLLER_OUTPUT);
send_message(MSG_FENCE_STATUS);
}
if (stream_trigger(STREAM_POSITION)) {
// sent with GPS read
send_message(MSG_LOCATION);