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-rw-r--r--rs232.c402
1 files changed, 0 insertions, 402 deletions
diff --git a/rs232.c b/rs232.c
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index 4055e2a..0000000
--- a/rs232.c
+++ /dev/null
@@ -1,402 +0,0 @@
-/*
-***************************************************************************
-*
-* Author: Teunis van Beelen
-*
-* Copyright (C) 2005, 2006, 2007, 2008, 2009 Teunis van Beelen
-*
-* teuniz@gmail.com
-*
-***************************************************************************
-*
-* This program is free software; you can redistribute it and/or modify
-* it under the terms of the GNU General Public License as published by
-* the Free Software Foundation version 2 of the License.
-*
-* This program is distributed in the hope that it will be useful,
-* but WITHOUT ANY WARRANTY; without even the implied warranty of
-* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-* GNU General Public License for more details.
-*
-* You should have received a copy of the GNU General Public License along
-* with this program; if not, write to the Free Software Foundation, Inc.,
-* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-*
-***************************************************************************
-*
-* This version of GPL is at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
-*
-***************************************************************************
-*/
-
-
-
-#include "rs232.h"
-#include "simplemotion_private.h"
-
-
-#ifdef __linux__ /* Linux */
-
-
-int OpenComport(const char * comport_name, int baudrate)
-{
- int error;
- int handle;
- int baudr;
- struct termios new_port_settings;
-
- switch(baudrate)
- {
- case 50 : baudr = B50;
- break;
- case 75 : baudr = B75;
- break;
- case 110 : baudr = B110;
- break;
- case 134 : baudr = B134;
- break;
- case 150 : baudr = B150;
- break;
- case 200 : baudr = B200;
- break;
- case 300 : baudr = B300;
- break;
- case 600 : baudr = B600;
- break;
- case 1200 : baudr = B1200;
- break;
- case 1800 : baudr = B1800;
- break;
- case 2400 : baudr = B2400;
- break;
- case 4800 : baudr = B4800;
- break;
- case 9600 : baudr = B9600;
- break;
- case 19200 : baudr = B19200;
- break;
- case 38400 : baudr = B38400;
- break;
- case 57600 : baudr = B57600;
- break;
- case 115200 : baudr = B115200;
- break;
- case 230400 : baudr = B230400;
- break;
- case 460800 : baudr = B460800;
- break;
- case 500000 : baudr = B500000;
- break;
- case 576000 : baudr = B576000;
- break;
- case 921600 : baudr = B921600;
- break;
- case 1000000 : baudr = B1000000;
- break;
- case 1115200 : baudr = B1152000;
- break;
- case 1500000 : baudr = B1500000;
- break;
- case 2000000 : baudr = B2000000;
- break;
- case 2500000 : baudr = B2500000;
- break;
- case 3000000 : baudr = B3000000;
- break;
- case 3500000 : baudr = B3500000;
- break;
- case 4000000 : baudr = B4000000;
- break;
- default : printf("invalid baudrate\n");
- return(1);
- break;
- }
-
- //Cport[comport_number] = open(comports[comport_number], O_RDWR | O_NOCTTY | O_NDELAY);
- handle = open(comport_name, O_RDWR | O_NOCTTY );
- if(handle==-1)
- {
- perror("unable to open comport ");
- return(handle);
- }
-
- memset(&new_port_settings, 0, sizeof(new_port_settings)); /* clear the new struct */
-
- new_port_settings.c_cflag = baudr | CS8 | CLOCAL | CREAD;
- new_port_settings.c_iflag = IGNPAR;
- new_port_settings.c_oflag = 0;
- new_port_settings.c_lflag = 0;
- new_port_settings.c_cc[VMIN] = 0; /* block untill n bytes are received */
- new_port_settings.c_cc[VTIME] = readTimeoutMs/100; /* block untill a timer expires (n * 100 mSec.) */
- error = tcsetattr(handle, TCSANOW, &new_port_settings);
- if(error==-1)
- {
- close(handle);
- perror("unable to adjust portsettings ");
- return(-1);
- }
-
- return(handle);
-}
-
-
-int PollComport(int comport_number, unsigned char *buf, int size)
-{
- int n;
-
- #ifndef __STRICT_ANSI__ /* __STRICT_ANSI__ is defined when the -ansi option is used for gcc */
- if(size>SSIZE_MAX) size = (int)SSIZE_MAX; /* SSIZE_MAX is defined in limits.h */
- #else
- if(size>4096) size = 4096;
- #endif
-
- n = read(comport_number, buf, size);
-
- return(n);
-}
-
-
-int SendByte(int comport_number, unsigned char byte)
-{
- int n;
-
- n = write(comport_number, &byte, 1);
- if(n<0) return(1);
-
- return(0);
-}
-
-
-int SendBuf(int comport_number, unsigned char *buf, int size)
-{
- return(write(comport_number, buf, size));
-}
-
-
-void CloseComport(int comport_number)
-{
- close(comport_number);
- //feature removed, not restorint old settings :
- //tcsetattr(comport_number, TCSANOW, old_port_settings + comport_number);
-}
-
-/*
-Constant Description
-TIOCM_LE DSR (data set ready/line enable)
-TIOCM_DTR DTR (data terminal ready)
-TIOCM_RTS RTS (request to send)
-TIOCM_ST Secondary TXD (transmit)
-TIOCM_SR Secondary RXD (receive)
-TIOCM_CTS CTS (clear to send)
-TIOCM_CAR DCD (data carrier detect)
-TIOCM_CD Synonym for TIOCM_CAR
-TIOCM_RNG RNG (ring)
-TIOCM_RI Synonym for TIOCM_RNG
-TIOCM_DSR DSR (data set ready)
-*/
-
-int IsCTSEnabled(int comport_number)
-{
- int status;
-
- status = ioctl(comport_number, TIOCMGET, &status);
-
- if(status&TIOCM_CTS) return(1);
- else return(0);
-}
-
-
-#else /* windows */
-
-#ifdef DEBUG_COMPORT
-//for finding problem with windows calls
-void print_win32_system_error(char *name) {
- // Retrieve, format, and print out a message from the last error. The
- // `name' that's passed should be in the form of a present tense noun
- // (phrase) such as "opening file".
- //
- char *ptr = NULL;
- FormatMessage(
- FORMAT_MESSAGE_ALLOCATE_BUFFER |
- FORMAT_MESSAGE_FROM_SYSTEM,
- 0,
- GetLastError(),
- 0,
- (char *)&ptr,
- 1024,
- NULL);
-
- fprintf(stderr, "\nError %s: %ls\n", name, ptr);
- LocalFree(ptr);
-}
-#endif
-
-int OpenComport(const char * comport_name, int baudrate)
-{
-
- char baudr[64], portname[64];
- HANDLE handle;
-
-
- switch(baudrate)
- {
- case 110 : strcpy(baudr, "baud=110 data=8 parity=N stop=1");
- break;
- case 300 : strcpy(baudr, "baud=300 data=8 parity=N stop=1");
- break;
- case 600 : strcpy(baudr, "baud=600 data=8 parity=N stop=1");
- break;
- case 1200 : strcpy(baudr, "baud=1200 data=8 parity=N stop=1");
- break;
- case 2400 : strcpy(baudr, "baud=2400 data=8 parity=N stop=1");
- break;
- case 4800 : strcpy(baudr, "baud=4800 data=8 parity=N stop=1");
- break;
- case 9600 : strcpy(baudr, "baud=9600 data=8 parity=N stop=1");
- break;
- case 19200 : strcpy(baudr, "baud=19200 data=8 parity=N stop=1");
- break;
- case 38400 : strcpy(baudr, "baud=38400 data=8 parity=N stop=1");
- break;
- case 57600 : strcpy(baudr, "baud=57600 data=8 parity=N stop=1");
- break;
- case 115200 : strcpy(baudr, "baud=115200 data=8 parity=N stop=1");
- break;
- case 128000 : strcpy(baudr, "baud=128000 data=8 parity=N stop=1");
- break;
- case 256000 : strcpy(baudr, "baud=256000 data=8 parity=N stop=1");
- break;
- case 460800 : strcpy(baudr, "baud=460800 data=8 parity=N stop=1");
- break;
- case 500000 : strcpy(baudr, "baud=500000 data=8 parity=N stop=1");
- break;
- case 576000 : strcpy(baudr, "baud=576000 data=8 parity=N stop=1");
- break;
- case 921600 : strcpy(baudr, "baud=921600 data=8 parity=N stop=1");
- break;
- case 1000000 : strcpy(baudr, "baud=1000000 data=8 parity=N stop=1");
- break;
- case 1115200 : strcpy(baudr, "baud=1115200 data=8 parity=N stop=1");
- break;
- case 1500000 : strcpy(baudr, "baud=1500000 data=8 parity=N stop=1");
- break;
- case 2000000 : strcpy(baudr, "baud=2000000 data=8 parity=N stop=1");
- break;
- case 2500000 : strcpy(baudr, "baud=2500000 data=8 parity=N stop=1");
- break;
- case 3000000 : strcpy(baudr, "baud=3000000 data=8 parity=N stop=1");
- break;
- case 3500000 : strcpy(baudr, "baud=3500000 data=8 parity=N stop=1");
- break;
- case 4000000 : strcpy(baudr, "baud=4000000 data=8 parity=N stop=1");
- break;
- default : printf("invalid baudrate\n");
- return(-1);
- break;
- }
-
- strcpy(portname,"\\\\.\\");
- strcat(portname,comport_name);
-
- handle = CreateFileA(portname,
- GENERIC_READ|GENERIC_WRITE,
- 0, /* no share */
- NULL, /* no security */
- OPEN_EXISTING,
- 0, /* no threads */
- NULL); /* no templates */
-
- if(handle==INVALID_HANDLE_VALUE)
- {
- printf("unable to open comport\n");
- return(-1);
- }
-
- DCB port_settings;
- memset(&port_settings, 0, sizeof(port_settings)); /* clear the new struct */
- port_settings.DCBlength = sizeof(port_settings);
-
- if(!BuildCommDCBA(baudr, &port_settings))
- {
- printf("unable to set comport dcb settings\n");
- CloseHandle(handle);
- return(-1);
- }
-
- if(!SetCommState(handle, &port_settings))
- {
- printf("unable to set comport cfg settings\n");
- CloseHandle(handle);
- return(-1);
- }
-
- COMMTIMEOUTS Cptimeouts;
-
- Cptimeouts.ReadIntervalTimeout = 0;
- Cptimeouts.ReadTotalTimeoutMultiplier = 0;
- Cptimeouts.ReadTotalTimeoutConstant = readTimeoutMs;
- Cptimeouts.WriteTotalTimeoutMultiplier = 50;
- Cptimeouts.WriteTotalTimeoutConstant = 50;
-
-
- if(!SetCommTimeouts(handle, &Cptimeouts))
- {
- printf("unable to set comport time-out settings\n");
- CloseHandle(handle);
- return(-1);
- }
-
- return( (int)handle);
-}
-
-
-int PollComport(int comport_number, unsigned char *buf, int size)
-{
- int n;
-
- if(size>4096) size = 4096;
-
- /* added the void pointer cast, otherwise gcc will complain about */
- /* "warning: dereferencing type-punned pointer will break strict aliasing rules" */
-
- ReadFile((HANDLE)comport_number, buf, size, (LPDWORD)((void *)&n), NULL);
-
- return(n);
-}
-
-
-int SendByte(int comport_number, unsigned char byte)
-{
- int n;
-
- WriteFile((HANDLE)comport_number, &byte, 1, (LPDWORD)((void *)&n), NULL);
-
- if(n<0) return(1);
-
- return(0);
-}
-
-
-
-int SendBuf(int comport_number, unsigned char *buf, int size)
-{
- int n;
-
- if(WriteFile((HANDLE)comport_number, buf, size, (LPDWORD)((void *)&n), NULL))
- {
- return(n);
- }
-
- return(-1);
-}
-
-
-void CloseComport(int comport_number)
-{
- CloseHandle((HANDLE)comport_number);
-}
-
-
-
-#endif
-
generated by cgit v1.2.3 (git 2.25.1) at 2025-12-15 23:38:41 +0000