void send_command(const char *command)
{
char tx_buf[32];
#ifdef ALLEGRO_WINDOWS
DWORD bytes_written;
#endif
sprintf(tx_buf, "%s\r", command); // Append CR to the command
#ifdef ALLEGRO_WINDOWS
PurgeComm(com_port, PURGE_TXCLEAR|PURGE_RXCLEAR);
WriteFile(com_port, tx_buf, strlen(tx_buf), &bytes_written, 0);
if (bytes_written != strlen(tx_buf))
{
#ifdef LOG_COMMS
log_comm("TX ERROR", tx_buf); // Log transmission error
#endif
return;
}
#else
comm_port_flush_output(com_port);
comm_port_flush_input(com_port);
comm_port_string_send(com_port, tx_buf);
#endif
#ifdef LOG_COMMS
write_comm_log("TX", tx_buf);
#endif
}
void close_comport()
{
if (comport.status == READY) // if the comport is open, close it
{
#ifdef ALLEGRO_WINDOWS
PurgeComm(com_port, PURGE_TXCLEAR|PURGE_RXCLEAR);
CloseHandle(com_port);
#else
comm_port_flush_output(com_port);
comm_port_flush_input(com_port);
comm_port_uninstall(com_port);
#endif
}
comport.status = NOT_OPEN;
}
void send_command(const char *command)
{
char tx_buf[32];
#ifdef ALLEGRO_WINDOWS
DWORD bytes_written;
#endif
sprintf(tx_buf, "%s\r", command); // Append CR to the command
#ifdef ALLEGRO_WINDOWS
PurgeComm(com_port, PURGE_TXCLEAR|PURGE_RXCLEAR);
WriteFile(com_port, tx_buf, strlen(tx_buf), &bytes_written, 0);
if (bytes_written != strlen(tx_buf))
{
#ifdef LOG_COMMS
log_comm("TX ERROR", tx_buf); // Log transmission error
#endif
return;
}
#elif TERMIOS
// printf("tx:'%s'\n",command);
if( write(fdtty,tx_buf,strlen(tx_buf)) == -1 )
{
perror("write tty");
close(fdtty);
fdtty = -1;
}
else
{
tcflush(fdtty, TCIFLUSH);
}
#else
comm_port_flush_output(com_port);
comm_port_flush_input(com_port);
comm_port_string_send(com_port, tx_buf);
#endif
#ifdef LOG_COMMS
write_comm_log("TX", tx_buf);
#endif
}
void send_command(const char *command)
{
char tx_buf[32];
sprintf(tx_buf, "%s\r", command); // Append CR to the command
#ifdef LOG_COMMS
write_comm_log("TX", tx_buf);
#endif
#ifdef ALLEGRO_WINDOWS
DWORD bytes_written;
PurgeComm(com_port, PURGE_TXCLEAR|PURGE_RXCLEAR);
WriteFile(com_port, tx_buf, strlen(tx_buf), &bytes_written, 0);
#else
comm_port_flush_output(com_port);
comm_port_flush_input(com_port);
comm_port_string_send(com_port, tx_buf);
#endif
}
int main_loop(char *desc, int max_val)
{
static int nsy = 1;
int r;
int got_i1;
int sent_i1;
int got_i2;
int sent_i2;
got_i1 = -1;
sent_i1 = 0;
if (port2) {
got_i2 = -1;
sent_i2 = 0;
}
else {
got_i2 = max_val;
sent_i2 = max_val;
}
comm_port_reinstall(port1);
if (port2 != NULL) comm_port_reinstall(port2);
if (nsy) {
fprintf(stderr, "Press return to start\n");
#ifdef ALLEGRO_H
while (!keypressed());
readkey();
#else
getc(stdin);
#endif
nsy = 0;
}
/* We are now listening at the new configuration. Wait for 0.1 s
* before starting to transmit to allow the slower system to also
* be listening before we tranmit. Don't need to do this on the
* first time thorugh (nsy condition above) as the user has provides
* the synchronisation then.
*/
else if (port2 == NULL) {
#ifdef ALLEGRO_H
rest(100);
#else
usleep(100000);
#endif
}
do {
if (sent_i1 < max_val) {
comm_port_out(port1, (unsigned char) sent_i1++);
}
if ((r = comm_port_test(port1)) >= 0) {
if (r == (got_i1+1)) got_i1++;
else fprintf(stderr, "ERROR on 1 [expected %d got %d]\n", got_i1+1, r);
}
if (port2) {
if (sent_i2 < max_val) {
comm_port_out(port2, (unsigned char) sent_i2++);
}
if ((r = comm_port_test(port2)) >= 0) {
if (r == (got_i2+1)) got_i2++;
else fprintf(stderr, "ERROR on 2 [expected %d got %d]\n", got_i2+1, r);
}
}
/* Any key will result in a stop if compiled with allegro. Otherwise,
* use ctrl-c.
*/
#ifdef ALLEGRO_H
if (keypressed()) {
comm_port_flush_output(port1);
if (port2 != NULL) comm_port_flush_output(port2);
fprintf(stderr, "\nSTOPPED BY USER\n");
return -1;
}
#endif
show_status(desc, sent_i1-1, got_i1, sent_i2-1, got_i2);
} while ((got_i1 < (max_val-1)) || (sent_i1 < (max_val-1)) || (got_i2 < (max_val-1)) || (sent_i2 < (max_val-1)));
show_status(desc, -2, 0, 0, 0);
return 1;
}
