int vrpn_Tracker_InterSense::add_is900_analog(const char *analog_device_name, int sensor,
double c0Min, double c0Low, double c0Hi, double c0Max,
double c1Min, double c1Low, double c1Hi, double c1Max)
{
// Make sure this is a valid sensor
if ( (sensor < 0) || (sensor >= ISD_MAX_STATIONS) ) {
return -1;
}
// Add a new analog device and set the pointer to point at it.
try { is900_analogs[sensor] = new vrpn_Clipping_Analog_Server(analog_device_name, d_connection); }
catch (...) {
VRPN_MSG_ERROR("Cannot open analog device");
return -1;
}
// Set the analog to have two channels, and set its channels to 0 to start with
is900_analogs[sensor]->setNumChannels(2);
is900_analogs[sensor]->setChannelValue(0, 0.0);
is900_analogs[sensor]->setChannelValue(1, 0.0);
// Set the scaling on the two channels.
is900_analogs[sensor]->setClipValues(0, c0Min, c0Low, c0Hi, c0Max);
is900_analogs[sensor]->setClipValues(1, c1Min, c1Low, c1Hi, c1Max);
// Send a new station-format command to the tracker so it will report the analog status
return set_sensor_output_format(sensor);
}
// this routine is called when an "Stylus" button is encountered
// by the tracker init string parser it sets up the VRPN button
// device
int vrpn_Tracker_Liberty::add_stylus_button(const char *button_device_name, int sensor, int numbuttons)
{
// Make sure this is a valid sensor
if ( (sensor < 0) || (sensor >= num_stations) ) {
return -1;
}
// Add a new button device and set the pointer to point at it.
try { stylus_buttons[sensor] = new vrpn_Button_Server(button_device_name, d_connection, numbuttons); }
catch (...) {
VRPN_MSG_ERROR("Cannot open button device");
return -1;
}
// Send a new station-format command to the tracker so it will report the button states.
return set_sensor_output_format(sensor);
}
int vrpn_Tracker_InterSense::add_is900_button(const char *button_device_name, int sensor, int numbuttons)
{
// Make sure this is a valid sensor
if ( (sensor < 0) || (sensor >= ISD_MAX_STATIONS) ) {
return -1;
}
// Add a new button device and set the pointer to point at it.
is900_buttons[sensor] = new vrpn_Button_Server(button_device_name, d_connection, numbuttons);
if (is900_buttons[sensor] == NULL) {
FT_ERROR("Cannot open button device");
return -1;
}
// Send a new station-format command to the tracker so it will report the button states.
return set_sensor_output_format(sensor);
}
void vrpn_Tracker_Liberty::reset()
{
int i,resetLen,ret;
char reset[10];
char errmsg[512];
char outstring1[64],outstring3[64];
//--------------------------------------------------------------------
// This section deals with resetting the tracker to its default state.
// Multiple attempts are made to reset, getting more aggressive each
// time. This section completes when the tracker reports a valid status
// message after the reset has completed.
//--------------------------------------------------------------------
// Send the tracker a string that should reset it. The first time we
// try this, just do the normal 'c' command to put it into polled mode.
// after a few tries with this, use the ^Y reset. Later, try to reset
// to the factory defaults. Then toggle the extended mode.
// Then put in a carriage return to try and break it out of
// a query mode if it is in one. These additions are cumulative: by the
// end, we're doing them all.
fprintf(stderr,"[DEBUG] Beginning Reset");
resetLen = 0;
num_resets++; // We're trying another reset
if (num_resets > 0) { // Try to get it out of a query loop if its in one
reset[resetLen++] = (char) (13); // Return key -> get ready
reset[resetLen++] = 'F';
reset[resetLen++] = '0';
reset[resetLen++] = (char) (13); // Return key -> get ready
// reset[resetLen++] = (char) (13);
// reset[resetLen++] = (char) (13);
}
/* XXX These commands are probably never needed, and can cause real
headaches for people who are keeping state in their trackers (especially
the InterSense trackers). Taking them out in version 05.01; you can put
them back in if your tracker isn't resetting as well.
if (num_resets > 3) { // Get a little more aggressive
reset[resetLen++] = 'W'; // Reset to factory defaults
reset[resetLen++] = (char) (11); // Ctrl + k --> Burn settings into EPROM
}
*/
if (num_resets > 2) {
reset[resetLen++] = (char) (25); // Ctrl + Y -> reset the tracker
reset[resetLen++] = (char) (13); // Return Key
}
reset[resetLen++] = 'P'; // Put it into polled (not continuous) mode
sprintf(errmsg, "Resetting the tracker (attempt %d)", num_resets);
VRPN_MSG_WARNING(errmsg);
for (i = 0; i < resetLen; i++) {
if (vrpn_write_characters(serial_fd, (unsigned char*)&reset[i], 1) == 1) {
fprintf(stderr,".");
vrpn_SleepMsecs(1000.0*2); // Wait after each character to give it time to respond
} else {
perror("Liberty: Failed writing to tracker");
status = vrpn_TRACKER_FAIL;
return;
}
}
//XXX Take out the sleep and make it keep spinning quickly
// You only need to sleep 10 seconds for an actual Liberty.
// For the Intersense trackers, you need to sleep 20. So,
// sleeping 20 is the more general solution...
if (num_resets > 2) {
vrpn_SleepMsecs(1000.0*20); // Sleep to let the reset happen, if we're doing ^Y
}
fprintf(stderr,"\n");
// Get rid of the characters left over from before the reset
vrpn_flush_input_buffer(serial_fd);
// Make sure that the tracker has stopped sending characters
vrpn_SleepMsecs(1000.0*2);
unsigned char scrap[80];
if ( (ret = vrpn_read_available_characters(serial_fd, scrap, 80)) != 0) {
sprintf(errmsg,"Got >=%d characters after reset",ret);
VRPN_MSG_WARNING(errmsg);
for (i = 0; i < ret; i++) {
if (isprint(scrap[i])) {
fprintf(stderr,"%c",scrap[i]);
} else {
fprintf(stderr,"[0x%02X]",scrap[i]);
}
}
fprintf(stderr, "\n");
vrpn_flush_input_buffer(serial_fd); // Flush what's left
}
// Asking for tracker status. S not implemented in Liberty and hence
// ^V (WhoAmI) is used. It retruns 196 bytes
char statusCommand[2];
statusCommand[0]=(char)(22); // ^V
statusCommand[1]=(char)(13); // Return Key
if (vrpn_write_characters(serial_fd, (const unsigned char *) &statusCommand[0], 2) == 2) {
vrpn_SleepMsecs(1000.0*1); // Sleep for a second to let it respond
} else {
perror(" Liberty write failed");
status = vrpn_TRACKER_FAIL;
return;
}
// Read Status
unsigned char statusmsg[vrpn_LIBERTY_MAX_WHOAMI_LEN+1];
// Attempt to read whoami_len characters.
ret = vrpn_read_available_characters(serial_fd, statusmsg, whoami_len);
if (ret != whoami_len) {
fprintf(stderr," Got %d of %d characters for status\n",ret, whoami_len);
}
if (ret != -1) {
statusmsg[ret] = '\0'; // Null-terminate the string
}
// It seems like some versions of the tracker report longer
// messages; so we reduced this check so that it does not check for the
// appropriate length of message or for the last character being a 10,
// so that it works more generally. The removed tests are:
// || (ret!=whoami_len) || (statusmsg[ret-1]!=(char)(10))
if ( (statusmsg[0]!='0') ) {
int i;
fprintf(stderr, " Liberty: status is (");
for (i = 0; i < ret; i++) {
if (isprint(statusmsg[i])) {
fprintf(stderr,"%c",statusmsg[i]);
} else {
fprintf(stderr,"[0x%02X]",statusmsg[i]);
}
}
fprintf(stderr,"\n)\n");
VRPN_MSG_ERROR("Bad status report from Liberty, retrying reset");
return;
} else {
VRPN_MSG_WARNING("Liberty/Isense gives status (this is good)");
printf("LIBERTY LATUS STATUS (whoami):\n%s\n\n",statusmsg);
num_resets = 0; // Success, use simple reset next time
}
//--------------------------------------------------------------------
// Now that the tracker has given a valid status report, set all of
// the parameters the way we want them. We rely on power-up setting
// based on the receiver select switches to turn on the receivers that
// the user wants.
//--------------------------------------------------------------------
// Set output format for each of the possible stations.
for (i = 0; i < num_stations; i++) {
if (set_sensor_output_format(i)) {
return;
}
}
// Enable filtering if the constructor parameter said to.
// Set filtering for both position (X command) and orientation (Y command)
// to the values that are recommended as a "jumping off point" in the
// Liberty manual.
if (do_filter) {
if (VRPN_LIBERTY_DEBUG) fprintf(stderr,"[DEBUG]: Enabling filtering\n");
if (vrpn_write_characters(serial_fd,
(const unsigned char *)"X0.2,0.2,0.8,0.8\015", 17) == 17) {
vrpn_SleepMsecs(1000.0*1); // Sleep for a second to let it respond
} else {
perror(" Liberty write position filter failed");
status = vrpn_TRACKER_FAIL;
return;
}
if (vrpn_write_characters(serial_fd,
(const unsigned char *)"Y0.2,0.2,0.8,0.8\015", 17) == 17) {
vrpn_SleepMsecs(1000.0*1); // Sleep for a second to let it respond
} else {
perror(" Liberty write orientation filter failed");
status = vrpn_TRACKER_FAIL;
return;
}
} else {
if (VRPN_LIBERTY_DEBUG) fprintf(stderr,"[DEBUG]: Disabling filtering\n");
if (vrpn_write_characters(serial_fd,
(const unsigned char *)"X0,1,0,0\015", 9) == 9) {
vrpn_SleepMsecs(1000.0*1); // Sleep for a second to let it respond
} else {
perror(" Liberty write position filter failed");
status = vrpn_TRACKER_FAIL;
return;
}
if (vrpn_write_characters(serial_fd,
(const unsigned char *)"Y0,1,0,0\015", 9) == 9) {
vrpn_SleepMsecs(1000.0*1); // Sleep for a second to let it respond
} else {
perror(" Liberty write orientation filter failed");
status = vrpn_TRACKER_FAIL;
return;
}
}
// Send the additional reset commands, if any, to the tracker.
// These commands come in lines, with character \015 ending each
// line. If a line start with an asterisk (*), treat it as a pause
// command, with the number of seconds to wait coming right after
// the asterisk. Otherwise, the line is sent directly to the tracker.
// Wait a while for them to take effect, then clear the input
// buffer.
if (strlen(add_reset_cmd) > 0) {
char *next_line;
char add_cmd_copy[sizeof(add_reset_cmd)];
char string_to_send[sizeof(add_reset_cmd)];
int seconds_to_wait;
printf(" Liberty writing extended reset commands...\n");
// Make a copy of the additional reset string, since it is consumed
vrpn_strcpy(add_cmd_copy, add_reset_cmd);
// Pass through the string, testing each line to see if it is
// a sleep command or a line to send to the tracker. Continue until
// there are no more line delimiters ('\015'). Be sure to write the
// \015 to the end of the string sent to the tracker.
// Note that strok() puts a NULL character in place of the delimiter.
next_line = strtok(add_cmd_copy, "\015");
while (next_line != NULL) {
if (next_line[0] == '*') { // This is a "sleep" line, see how long
seconds_to_wait = atoi(&next_line[1]);
fprintf(stderr," ...sleeping %d seconds\n",seconds_to_wait);
vrpn_SleepMsecs(1000.0*seconds_to_wait);
} else { // This is a command line, send it
sprintf(string_to_send, "%s\015", next_line);
fprintf(stderr, " ...sending command: %s\n", string_to_send);
vrpn_write_characters(serial_fd,
(const unsigned char *)string_to_send,strlen(string_to_send));
}
next_line = strtok(next_line+strlen(next_line)+1, "\015");
}
// Sleep a little while to let this finish, then clear the input buffer
vrpn_SleepMsecs(1000.0*2);
vrpn_flush_input_buffer(serial_fd);
}
// Set data format to BINARY mode
sprintf(outstring1, "F1\r");
if (vrpn_write_characters(serial_fd, (const unsigned char *)outstring1,
strlen(outstring1)) == (int)strlen(outstring1)) {
fprintf(stderr, " Liberty set to binary mode\n");
}
// Set tracker to continuous mode
sprintf(outstring3, "C\r");
if (vrpn_write_characters(serial_fd, (const unsigned char *)outstring3,
strlen(outstring3)) != (int)strlen(outstring3)) {
perror(" Liberty write failed");
status = vrpn_TRACKER_FAIL;
return;
} else {
fprintf(stderr, " Liberty set to continuous mode\n");
}
// If we are using the Liberty timestamps, clear the timer on the device and
// store the time when we cleared it. First, drain any characters in the output
// buffer to ensure we're sending right away. Then, send the reset command and
// store the time that we sent it, plus the estimated time for the characters to
// get across the serial line to the device at the current baud rate.
// Set time units to milliseconds (MT) and reset the time (MZ).
char clear_timestamp_cmd[] = "Q0\r";
vrpn_drain_output_buffer(serial_fd);
if (vrpn_write_characters(serial_fd, (const unsigned char *)clear_timestamp_cmd,
strlen(clear_timestamp_cmd)) != (int)strlen(clear_timestamp_cmd)) {
VRPN_MSG_ERROR("Cannot send command to clear timestamp");
status = vrpn_TRACKER_FAIL;
return;
}
// Drain the output buffer again, then record the time as the base time from
// the tracker.
vrpn_drain_output_buffer(serial_fd);
vrpn_gettimeofday(&liberty_zerotime, NULL);
// Done with reset.
vrpn_gettimeofday(&watchdog_timestamp, NULL); // Set watchdog now
VRPN_MSG_WARNING("Reset Completed (this is good)");
status = vrpn_TRACKER_SYNCING; // We're trying for a new reading
}
void vrpn_Tracker_InterSense::reset()
{
#ifdef VRPN_INCLUDE_INTERSENSE
char errStr[1024];
int i;
m_Handle = ISD_OpenTracker(NULL,m_CommPort,FALSE,FALSE);
if(m_Handle == -1)
{
sprintf(errStr,"InterSense: Failed to open tracker '%s' on COM%d: ISD_OpenTracker returned -1",d_servicename,m_CommPort);
fprintf(stderr,errStr);
vrpn_gettimeofday(×tamp, NULL);
VRPN_MSG_ERROR(errStr);
status = vrpn_TRACKER_FAIL;
}
else
{
//--------------------------------------------------------------------
// Now that the tracker has given a valid status report, set all of
// the parameters the way we want them. We rely on power-up setting
// based on the receiver select switches to turn on the receivers that
// the user wants.
//--------------------------------------------------------------------
// Set output format for each of the possible stations.
for (i = 0; i < ISD_MAX_STATIONS; i++) {
if (set_sensor_output_format(i)) {
return;
}
}
// Send the additional reset commands, if any, to the tracker.
// These commands come in lines, with character \015 ending each
// line.
if (strlen(add_reset_cmd) > 0) {
printf(" Intersense writing extended reset commands...\n");
if(!ISD_SendScript(m_Handle,add_reset_cmd))
{
sprintf(errStr,"Warning: Your tracker failed executing the additional command string. ");
vrpn_gettimeofday(×tamp, NULL);
VRPN_MSG_WARNING(errStr);
}
}
// If we are using the IS-900 timestamps, clear the timer on the device and
// store the time when we cleared it. First, drain any characters in the output
// buffer to ensure we're sending right away. Then, send the reset command and
// store the time that we sent it, plus the estimated time for the characters to
// get across the serial line to the device at the current baud rate.
// Set time units to milliseconds (MT) and reset the time (MZ).
if (do_is900_timestamps) {
char clear_timestamp_cmd[] = "MT\015MZ\015";
if(!ISD_SendScript(m_Handle,clear_timestamp_cmd))
{
sprintf(errStr,"Warning: Your tracker failed executing the additional command string. ");
vrpn_gettimeofday(×tamp, NULL);
VRPN_MSG_WARNING(errStr);
}
vrpn_gettimeofday(&is900_zerotime, NULL);
}
// Done with reset.
vrpn_gettimeofday(×tamp, NULL); // Set watchdog now
VRPN_MSG_WARNING("Reset Completed (this is good)");
status = vrpn_TRACKER_SYNCING; // We're trying for a new reading
}
#else
fprintf(stderr,"Intersense library not compiled into this version. Use Fastrak driver for IS-600/900 or recompile with VRPN_INCLUDE_INTERSENSE defined\n");
status = vrpn_TRACKER_FAIL;
#endif
}
vrpn_Tracker_InterSense::vrpn_Tracker_InterSense(const char *name,
vrpn_Connection *c,
int commPort, const char *additional_reset_commands,
int is900_timestamps, int reset_at_start) :
vrpn_Tracker(name,c), do_is900_timestamps(is900_timestamps),
m_reset_at_start(reset_at_start)
{
#ifdef VRPN_INCLUDE_INTERSENSE
char errStr[1024];
int i;
register_server_handlers();
if (additional_reset_commands == NULL) {
sprintf(add_reset_cmd, "");
} else {
vrpn_strcpy(add_reset_cmd, additional_reset_commands);
}
// Initially, set to no buttons or analogs on the stations. The
// methods to add buttons and analogs must be called to add them.
for (i = 0; i < ISD_MAX_STATIONS; i++) {
is900_buttons[i] = NULL;
is900_analogs[i] = NULL;
}
m_CommPort = commPort;
m_Handle = ISD_OpenTracker(NULL, commPort, FALSE, FALSE);
if(m_Handle == -1)
{
sprintf(errStr,"Failed to open tracker '%s' on COM%d: ISLIB_OpenTracker returned -1",name,commPort);
status = vrpn_TRACKER_FAIL;
return;
}
// ISD_TRACKER_INFO_TYPE trackerInfo;
ISD_GetTrackerConfig(m_Handle,&m_TrackerInfo,FALSE);
for (i = 0; i < ISD_MAX_STATIONS; i++) {
if (set_sensor_output_format(i)) {
sprintf(errStr,"Failed to reset sensor %d on tracker '%s' on COM%d",i, name,commPort);
status = vrpn_TRACKER_FAIL;
return;
}
}
//what is the update rate of this tracker?
//we might want to set the update rate of the mainloop to based on this value.
//for now we just print it out.
getTrackerInfo(errStr);
vrpn_gettimeofday(×tamp, NULL);
VRPN_MSG_INFO(errStr);
fprintf(stderr,errStr);
status = vrpn_TRACKER_SYNCING;
#else
fprintf(stderr,"Intersense library not compiled into this version. Use Fastrak driver for IS-600/900 or recompile with VRPN_INCLUDE_INTERSENSE defined\n");
status = vrpn_TRACKER_FAIL;
#endif
}
void vrpn_Tracker_Isotrak::reset()
{
static int numResets = 0; // How many resets have we tried?
int i,resetLen,ret;
unsigned char reset[10];
char errmsg[512];
//--------------------------------------------------------------------
// This section deals with resetting the tracker to its default state.
// Multiple attempts are made to reset, getting more aggressive each
// time. This section completes when the tracker reports a valid status
// message after the reset has completed.
//--------------------------------------------------------------------
// Send the tracker a string that should reset it. The first time we
// try this, just do the normal 'c' command to put it into polled mode.
// After a few tries with this, use a [return] character, and then use the ^Y to reset.
resetLen = 0;
numResets++;
// We're trying another reset
if (numResets > 1) { // Try to get it out of a query loop if its in one
reset[resetLen++] = (unsigned char) (13); // Return key -> get ready
}
if (numResets > 2) {
reset[resetLen++] = (unsigned char) (25); // Ctrl + Y -> reset the tracker
}
reset[resetLen++] = 'c'; // Put it into polled (not continuous) mode
sprintf(errmsg, "Resetting the tracker (attempt %d)", numResets);
VRPN_MSG_WARNING(errmsg);
for (i = 0; i < resetLen; i++) {
if (vrpn_write_characters(serial_fd, &reset[i], 1) == 1) {
fprintf(stderr,".");
vrpn_SleepMsecs(1000.0*2); // Wait after each character to give it time to respond
} else {
perror("Isotrack: Failed writing to tracker");
status = vrpn_TRACKER_FAIL;
return;
}
}
//XXX Take out the sleep and make it keep spinning quickly
if (numResets > 2) {
vrpn_SleepMsecs(1000.0*20); // Sleep to let the reset happen, if we're doing ^Y
}
fprintf(stderr,"\n");
// Get rid of the characters left over from before the reset
vrpn_flush_input_buffer(serial_fd);
// Make sure that the tracker has stopped sending characters
vrpn_SleepMsecs(1000.0*2);
unsigned char scrap[80];
if ( (ret = vrpn_read_available_characters(serial_fd, scrap, 80)) != 0) {
sprintf(errmsg,"Got >=%d characters after reset",ret);
VRPN_MSG_WARNING(errmsg);
for (i = 0; i < ret; i++) {
if (isprint(scrap[i])) {
fprintf(stderr,"%c",scrap[i]);
} else {
fprintf(stderr,"[0x%02X]",scrap[i]);
}
}
fprintf(stderr, "\n");
vrpn_flush_input_buffer(serial_fd); // Flush what's left
}
// Asking for tracker status
if (vrpn_write_characters(serial_fd, (const unsigned char *) "S", 1) == 1) {
vrpn_SleepMsecs(1000.0*1); // Sleep for a second to let it respond
} else {
perror(" Isotrack write failed");
status = vrpn_TRACKER_FAIL;
return;
}
// Read Status
unsigned char statusmsg[22];
// Attempt to read 21 characters.
ret = vrpn_read_available_characters(serial_fd, statusmsg, 21);
if ( (ret != 21) ) {
fprintf(stderr,
" Got %d of 21 characters for status\n",ret);
VRPN_MSG_ERROR("Bad status report from Isotrack, retrying reset");
return;
}
else if ( (statusmsg[0]!='2') ) {
int i;
statusmsg[sizeof(statusmsg) - 1] = '\0'; // Null-terminate the string
fprintf(stderr, " Isotrack: bad status (");
for (i = 0; i < ret; i++) {
if (isprint(statusmsg[i])) {
fprintf(stderr,"%c",statusmsg[i]);
} else {
fprintf(stderr,"[0x%02X]",statusmsg[i]);
}
}
fprintf(stderr,")\n");
VRPN_MSG_ERROR("Bad status report from Isotrack, retrying reset");
return;
} else {
VRPN_MSG_WARNING("Isotrack gives correct status (this is good)");
numResets = 0; // Success, use simple reset next time
}
//--------------------------------------------------------------------
// Now that the tracker has given a valid status report, set all of
// the parameters the way we want them. We rely on power-up setting
// based on the receiver select switches to turn on the receivers that
// the user wants.
//--------------------------------------------------------------------
// Set output format. This is done once for the Isotrak, not per channel.
if (set_sensor_output_format(0)) {
return;
}
// Enable filtering if the constructor parameter said to.
// Set filtering for both position (x command) and orientation (v command)
// to the values that are recommended as a "jumping off point" in the
// Isotrack manual.
if (do_filter) {
if (vrpn_write_characters(serial_fd, (const unsigned char *)"x0.2,0.2,0.8,0.8\015", 17) == 17) {
vrpn_SleepMsecs(1000.0*1); // Sleep for a second to let it respond
} else {
perror(" Isotrack write position filter failed");
status = vrpn_TRACKER_FAIL;
return;
}
if (vrpn_write_characters(serial_fd, (const unsigned char *)"v0.2,0.2,0.8,0.8\015", 17) == 17) {
vrpn_SleepMsecs(1000.0*1); // Sleep for a second to let it respond
} else {
perror(" Isotrack write orientation filter failed");
status = vrpn_TRACKER_FAIL;
return;
}
}
// RESET Alignment reference frame
if (vrpn_write_characters(serial_fd, (const unsigned char *) "R1\r", 3) != 3) {
perror(" Isotrack write failed");
status = vrpn_TRACKER_FAIL;
return;
} else {
VRPN_MSG_WARNING("Isotrack reset ALIGNMENT reference frame (this is good)");
}
// reset BORESIGHT
if (vrpn_write_characters(serial_fd, (const unsigned char *) "b1\r", 3) != 3) {
perror(" Isotrack write failed");
status = vrpn_TRACKER_FAIL;
return;
} else {
VRPN_MSG_WARNING("Isotrack reset BORESIGHT (this is good)");
}
// Set data format to METRIC mode
if (vrpn_write_characters(serial_fd, (const unsigned char *) "u", 1) != 1) {
perror(" Isotrack write failed");
status = vrpn_TRACKER_FAIL;
return;
} else {
VRPN_MSG_WARNING("Isotrack set to metric units (this is good)");
}
// Send the additional reset commands, if any, to the tracker.
// These commands come in lines, with character \015 ending each
// line. If a line start with an asterisk (*), treat it as a pause
// command, with the number of seconds to wait coming right after
// the asterisk. Otherwise, the line is sent directly to the tracker.
// Wait a while for them to take effect, then clear the input
// buffer.
if (strlen(add_reset_cmd) > 0) {
char *next_line;
char add_cmd_copy[sizeof(add_reset_cmd)];
char string_to_send[sizeof(add_reset_cmd)];
int seconds_to_wait;
printf(" Isotrack writing extended reset commands...\n");
// Make a copy of the additional reset string, since it is consumed
strncpy(add_cmd_copy, add_reset_cmd, sizeof(add_cmd_copy));
// Pass through the string, testing each line to see if it is
// a sleep command or a line to send to the tracker. Continue until
// there are no more line delimiters ('\015'). Be sure to write the
// \015 to the end of the string sent to the tracker.
// Note that strok() puts a NULL character in place of the delimiter.
next_line = strtok(add_cmd_copy, "\015");
while (next_line != NULL) {
if (next_line[0] == '*') { // This is a "sleep" line, see how long
seconds_to_wait = atoi(&next_line[1]);
fprintf(stderr," ...sleeping %d seconds\n",seconds_to_wait);
vrpn_SleepMsecs(1000.0*seconds_to_wait);
} else { // This is a command line, send it
sprintf(string_to_send, "%s\015", next_line);
fprintf(stderr, " ...sending command: %s\n", string_to_send);
vrpn_write_characters(serial_fd,
(const unsigned char *)string_to_send,strlen(string_to_send));
}
next_line = strtok(next_line+strlen(next_line)+1, "\015");
}
// Sleep a little while to let this finish, then clear the input buffer
vrpn_SleepMsecs(1000.0*2);
vrpn_flush_input_buffer(serial_fd);
}
// Set data format to BINARY mode
// F = ASCII, f = binary
if (vrpn_write_characters(serial_fd, (const unsigned char *) "f", 1) != 1) {
perror(" Isotrack write failed");
status = vrpn_TRACKER_FAIL;
return;
} else {
VRPN_MSG_WARNING("Isotrack set to BINARY mode (this is good)");
}
// Set tracker to continuous mode
if (vrpn_write_characters(serial_fd, (const unsigned char *) "C", 1) != 1) {
perror(" Isotrack write failed");
status = vrpn_TRACKER_FAIL;
return;
} else {
VRPN_MSG_WARNING("Isotrack set to continuous mode (this is good)");
}
VRPN_MSG_WARNING("Reset Completed.");
status = vrpn_TRACKER_SYNCING; // We're trying for a new reading
// Ok, device is ready, we want to calibrate to sensor 1 current position/orientation
while(get_report() != 1);
// Done with reset.
vrpn_gettimeofday(×tamp, NULL); // Set watchdog now
status = vrpn_TRACKER_SYNCING; // We're trying for a new reading
}
