void sci_mavlinkHilState(scicos_block *block, scicos::enumScicosFlags flag)
{
// data
double * u=GetRealInPortPtrs(block,1);
double * y=GetRealOutPortPtrs(block,1);
int * ipar=block->ipar;
static char * device;
static int baudRate;
static char ** stringArray;
static int * intArray;
static int count = 0;
static uint16_t packet_drops = 0;
//handle flags
if (flag==scicos::initialize || flag==scicos::reinitialize)
{
if (mavlink_comm_0_port == NULL)
{
getIpars(1,1,ipar,&stringArray,&intArray);
device = stringArray[0];
baudRate = intArray[0];
try
{
mavlink_comm_0_port = new BufferedAsyncSerial(device,baudRate);
}
catch(const boost::system::system_error & e)
{
Coserror((char *)e.what());
}
}
}
else if (flag==scicos::terminate)
{
if (mavlink_comm_0_port)
{
delete mavlink_comm_0_port;
mavlink_comm_0_port = NULL;
}
}
else if (flag==scicos::updateState)
{
}
else if (flag==scicos::computeDeriv)
{
}
else if (flag==scicos::computeOutput)
{
// channel
mavlink_channel_t chan = MAVLINK_COMM_0;
// loop rates
// TODO: clean this up to use scicos events w/ timers
static int attitudeRate = 50;
static int positionRate = 10;
static int airspeedRate = 1;
// initial times
double scicosTime = get_scicos_time();
static double attitudeTimeStamp = scicosTime;
static double positionTimeStamp = scicosTime;
static double airspeedTimeStamp = scicosTime;
// send airspeed message
if (scicosTime - airspeedTimeStamp > 1.0/airspeedRate)
{
airspeedTimeStamp = scicosTime;
// airspeed (true velocity m/s)
float Vt = u[0];
//double rawPress = 1;
//double airspeed = 1;
//mavlink_msg_raw_pressure_send(chan,timeStamp,airspeed,rawPress,0);
}
else if (scicosTime - airspeedTimeStamp < 0)
airspeedTimeStamp = scicosTime;
// send attitude message
if (scicosTime - attitudeTimeStamp > 1.0/attitudeRate)
{
attitudeTimeStamp = scicosTime;
// attitude states (rad)
float roll = u[1];
float pitch = u[2];
float yaw = u[3];
// body rates
float rollRate = u[4];
float pitchRate = u[5];
float yawRate = u[6];
mavlink_msg_attitude_send(chan,attitudeTimeStamp,roll,pitch,yaw,
rollRate,pitchRate,yawRate);
}
else if (scicosTime - attitudeTimeStamp < 0)
attitudeTimeStamp = scicosTime;
// send gps mesage
if (scicosTime - positionTimeStamp > 1.0/positionRate)
{
positionTimeStamp = scicosTime;
// gps
double cog = u[7];
double sog = u[8];
double lat = u[9]*rad2deg;
double lon = u[10]*rad2deg;
double alt = u[11];
//double rawPress = 1;
//double airspeed = 1;
mavlink_msg_gps_raw_send(chan,positionTimeStamp,1,lat,lon,alt,2,10,sog,cog);
//mavlink_msg_raw_pressure_send(chan,timeStamp,airspeed,rawPress,0);
}
else if (scicosTime - positionTimeStamp < 0)
positionTimeStamp = scicosTime;
// receive messages
mavlink_message_t msg;
mavlink_status_t status;
while(comm_get_available(MAVLINK_COMM_0))
{
uint8_t c = comm_receive_ch(MAVLINK_COMM_0);
// try to get new message
if(mavlink_parse_char(MAVLINK_COMM_0,c,&msg,&status))
{
switch(msg.msgid)
{
case MAVLINK_MSG_ID_RC_CHANNELS_SCALED:
{
//std::cout << "receiving messages" << std::endl;
mavlink_rc_channels_scaled_t rc_channels;
mavlink_msg_rc_channels_scaled_decode(&msg,&rc_channels);
y[0] = rc_channels.chan1_scaled/10000.0f;
y[1] = rc_channels.chan2_scaled/10000.0f;
y[2] = rc_channels.chan3_scaled/10000.0f;
y[3] = rc_channels.chan4_scaled/10000.0f;
y[4] = rc_channels.chan5_scaled/10000.0f;
y[5] = rc_channels.chan6_scaled/10000.0f;
y[6] = rc_channels.chan7_scaled/10000.0f;
y[7] = rc_channels.chan8_scaled/10000.0f;
break;
}
}
// update packet drop counter
packet_drops += status.packet_rx_drop_count;
}
}
}
}
/**
* @brief Receive communication packets and handle them
*
* This function decodes packets on the protocol level and also handles
* their value by calling the appropriate functions.
*/
void communication_receive(void)
{
mavlink_message_t msg;
mavlink_status_t status =
{ 0 };
status.packet_rx_drop_count = 0;
// COMMUNICATION WITH ONBOARD COMPUTER
while (uart0_char_available())
{
uint8_t c = uart0_get_char();
if (global_data.state.uart0mode == UART_MODE_MAVLINK)
{
// Try to get a new message
if (mavlink_parse_char(MAVLINK_COMM_0, c, &msg, &status))
{
// Handle message
handle_mavlink_message(MAVLINK_COMM_0, &msg);
}
}
else if (global_data.state.uart0mode == UART_MODE_BYTE_FORWARD)
{
uart1_transmit(c);
}
// And get the next one
}
// Update global packet drops counter
global_data.comm.uart0_rx_drop_count += status.packet_rx_drop_count;
global_data.comm.uart0_rx_success_count += status.packet_rx_success_count;
status.packet_rx_drop_count = 0;
// COMMUNICATION WITH EXTERNAL COMPUTER
while (uart1_char_available())
{
uint8_t c = uart1_get_char();
// Check if this link is used for MAVLink or GPS
if (global_data.state.uart1mode == UART_MODE_MAVLINK)
{
//uart0_transmit((unsigned char)c);
// Try to get a new message
if (mavlink_parse_char(MAVLINK_COMM_1, c, &msg, &status))
{
// Handle message
handle_mavlink_message(MAVLINK_COMM_1, &msg);
}
}
else if (global_data.state.uart1mode == UART_MODE_GPS)
{
if (global_data.state.gps_mode == 10)
{
static uint8_t gps_i = 0;
static char gps_chars[MAVLINK_MSG_STATUSTEXT_FIELD_TEXT_LEN];
if (c == '$' || gps_i == MAVLINK_MSG_STATUSTEXT_FIELD_TEXT_LEN
- 1)
{
gps_i = 0;
char gps_chars_buf[MAVLINK_MSG_STATUSTEXT_FIELD_TEXT_LEN];
strncpy(gps_chars_buf, gps_chars,
MAVLINK_MSG_STATUSTEXT_FIELD_TEXT_LEN);
debug_message_buffer(gps_chars_buf);
}
gps_chars[gps_i++] = c;
}
if (gps_parse(c))
{
// New GPS data received
//debug_message_buffer("RECEIVED NEW GPS DATA");
parse_gps_msg();
if (gps_lat == 0)
{
global_data.state.gps_ok = 0;
//debug_message_buffer("GPS Signal Lost");
}
else
{
global_data.state.gps_ok = 1;
mavlink_msg_gps_raw_send(
global_data.param[PARAM_SEND_DEBUGCHAN],
sys_time_clock_get_unix_time(), gps_mode, gps_lat
/ 1e7f, gps_lon / 1e7f, gps_alt / 100.0f,
0.0f, 0.0f, gps_gspeed / 100.0f, gps_course / 10.0f);
}
// // Output satellite info
// for (int i = 0; i < gps_nb_channels; i++)
// {
// mavlink_msg_gps_status_send(global_data.param[PARAM_SEND_DEBUGCHAN], gps_numSV, gps_svinfos[i].svid, gps_satellite_used(gps_svinfos[i].qi), gps_svinfos[i].elev, ((gps_svinfos[i].azim/360.0f)*255.0f), gps_svinfos[i].cno);
// }
}
}
else if (global_data.state.uart1mode == UART_MODE_BYTE_FORWARD)
{
uart0_transmit(c);
led_toggle(LED_YELLOW);
}
// And get the next one
}
// Update global packet drops counter
global_data.comm.uart0_rx_drop_count += status.packet_rx_drop_count;
global_data.comm.uart0_rx_success_count += status.packet_rx_success_count;
status.packet_rx_drop_count = 0;
}
void MavlinkComm::sendMessage(uint8_t id, uint32_t param) {
//_board->debug->printf_P(PSTR("send message\n"));
// if number of channels exceeded return
if (_channel == MAVLINK_COMM_3)
return;
uint64_t timeStamp = micros();
switch (id) {
case MAVLINK_MSG_ID_HEARTBEAT: {
mavlink_msg_heartbeat_send(_channel, _board->getVehicle(),
MAV_AUTOPILOT_ARDUPILOTMEGA);
break;
}
case MAVLINK_MSG_ID_ATTITUDE: {
mavlink_msg_attitude_send(_channel, timeStamp,
_navigator->getRoll(), _navigator->getPitch(),
_navigator->getYaw(), _navigator->getRollRate(),
_navigator->getPitchRate(), _navigator->getYawRate());
break;
}
case MAVLINK_MSG_ID_GLOBAL_POSITION: {
mavlink_msg_global_position_send(_channel, timeStamp,
_navigator->getLat() * rad2Deg,
_navigator->getLon() * rad2Deg, _navigator->getAlt(),
_navigator->getVN(), _navigator->getVE(),
_navigator->getVD());
break;
}
case MAVLINK_MSG_ID_LOCAL_POSITION: {
mavlink_msg_local_position_send(_channel, timeStamp,
_navigator->getPN(),_navigator->getPE(), _navigator->getPD(),
_navigator->getVN(), _navigator->getVE(), _navigator->getVD());
break;
}
case MAVLINK_MSG_ID_GPS_RAW: {
mavlink_msg_gps_raw_send(_channel, timeStamp, _board->gps->status(),
_board->gps->latitude/1.0e7,
_board->gps->longitude/1.0e7, _board->gps->altitude/100.0, 0, 0,
_board->gps->ground_speed/100.0,
_board->gps->ground_course/10.0);
break;
}
case MAVLINK_MSG_ID_GPS_RAW_INT: {
mavlink_msg_gps_raw_send(_channel, timeStamp, _board->gps->status(),
_board->gps->latitude,
_board->gps->longitude, _board->gps->altitude*10.0, 0, 0,
_board->gps->ground_speed/100.0,
_board->gps->ground_course/10.0);
break;
}
case MAVLINK_MSG_ID_SCALED_IMU: {
int16_t xmag, ymag, zmag;
xmag = ymag = zmag = 0;
if (_board->compass) {
// XXX THIS IS NOT SCALED
xmag = _board->compass->mag_x;
ymag = _board->compass->mag_y;
zmag = _board->compass->mag_z;
}
mavlink_msg_scaled_imu_send(_channel, timeStamp,
_navigator->getXAccel()*1e3,
_navigator->getYAccel()*1e3,
_navigator->getZAccel()*1e3,
_navigator->getRollRate()*1e3,
_navigator->getPitchRate()*1e3,
_navigator->getYawRate()*1e3,
xmag, ymag, zmag);
break;
}
case MAVLINK_MSG_ID_RC_CHANNELS_SCALED: {
int16_t ch[8];
for (int i = 0; i < 8; i++)
ch[i] = 0;
for (uint8_t i = 0; i < 8 && i < _board->rc.getSize(); i++) {
ch[i] = 10000 * _board->rc[i]->getPosition();
//_board->debug->printf_P(PSTR("ch: %d position: %d\n"),i,ch[i]);
}
mavlink_msg_rc_channels_scaled_send(_channel, ch[0], ch[1], ch[2],
ch[3], ch[4], ch[5], ch[6], ch[7], 255);
break;
}
case MAVLINK_MSG_ID_RC_CHANNELS_RAW: {
int16_t ch[8];
for (int i = 0; i < 8; i++)
ch[i] = 0;
for (uint8_t i = 0; i < 8 && i < _board->rc.getSize(); i++)
ch[i] = _board->rc[i]->getPwm();
mavlink_msg_rc_channels_raw_send(_channel, ch[0], ch[1], ch[2],
ch[3], ch[4], ch[5], ch[6], ch[7], 255);
break;
}
case MAVLINK_MSG_ID_SYS_STATUS: {
uint16_t batteryVoltage = 0; // (milli volts)
uint16_t batteryPercentage = 1000; // times 10
if (_board->batteryMonitor) {
batteryPercentage = _board->batteryMonitor->getPercentage()*10;
batteryVoltage = _board->batteryMonitor->getVoltage()*1000;
}
mavlink_msg_sys_status_send(_channel, _controller->getMode(),
_guide->getMode(), _controller->getState(), _board->load * 10,
batteryVoltage, batteryPercentage, _packetDrops);
break;
}
case MAVLINK_MSG_ID_WAYPOINT_ACK: {
sendText(SEVERITY_LOW, PSTR("waypoint ack"));
//mavlink_waypoint_ack_t packet;
uint8_t type = 0; // ok (0), error(1)
mavlink_msg_waypoint_ack_send(_channel, _cmdDestSysId,
_cmdDestCompId, type);
// turn off waypoint send
_receivingCmds = false;
break;
}
case MAVLINK_MSG_ID_WAYPOINT_CURRENT: {
mavlink_msg_waypoint_current_send(_channel,
_guide->getCurrentIndex());
break;
}
default: {
char msg[50];
sprintf(msg, "autopilot sending unknown command with id: %d", id);
sendText(SEVERITY_HIGH, msg);
}
} // switch
} // send message
