From 18a0c695a74081bf73c44921c7af43acf5933885 Mon Sep 17 00:00:00 2001 From: "Haoran S. Diao" <0@hairydiode.xyz> Date: Sat, 13 Apr 2019 17:54:16 -0400 Subject: removed redundant rs232 files --- RS-232/LICENSE | 677 -------------------------------------- RS-232/Makefile | 42 --- RS-232/demo_rx.c | 72 ----- RS-232/demo_tx.c | 66 ---- RS-232/doc.txt | 230 ------------- RS-232/gpl.txt | 677 -------------------------------------- RS-232/howto_compile.txt | 28 -- RS-232/rs232.c | 820 ----------------------------------------------- RS-232/rs232.h | 87 ----- 9 files changed, 2699 deletions(-) delete mode 100644 RS-232/LICENSE delete mode 100755 RS-232/Makefile delete mode 100644 RS-232/demo_rx.c delete mode 100644 RS-232/demo_tx.c delete mode 100644 RS-232/doc.txt delete mode 100644 RS-232/gpl.txt delete mode 100644 RS-232/howto_compile.txt delete mode 100644 RS-232/rs232.c delete mode 100644 RS-232/rs232.h diff --git a/RS-232/LICENSE b/RS-232/LICENSE deleted file mode 100644 index e43d6cf..0000000 --- a/RS-232/LICENSE +++ /dev/null @@ -1,677 +0,0 @@ - - - GNU GENERAL PUBLIC LICENSE - Version 3, 29 June 2007 - - Copyright (C) 2007 Free Software Foundation, Inc. - Everyone is permitted to copy and distribute verbatim copies - of this license document, but changing it is not allowed. - - Preamble - - The GNU General Public License is a free, copyleft license for -software and other kinds of works. - - The licenses for most software and other practical works are designed -to take away your freedom to share and change the works. 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But first, please read -. - diff --git a/RS-232/Makefile b/RS-232/Makefile deleted file mode 100755 index 6af5201..0000000 --- a/RS-232/Makefile +++ /dev/null @@ -1,42 +0,0 @@ -# -# -# Author: Teunis van Beelen -# -# email: teuniz@gmail.com -# -# - -CC = gcc -CFLAGS = -Wall -Wextra -Wshadow -Wformat-nonliteral -Wformat-security -Wtype-limits -o2 - -objects = rs232.o - -all: test_rx test_tx - -test_rx : $(objects) demo_rx.o - $(CC) $(objects) demo_rx.o -o test_rx - -test_tx : $(objects) demo_tx.o - $(CC) $(objects) demo_tx.o -o test_tx - -demo_rx.o : demo_rx.c rs232.h - $(CC) $(CFLAGS) -c demo_rx.c -o demo_rx.o - -demo_tx.o : demo_tx.c rs232.h - $(CC) $(CFLAGS) -c demo_tx.c -o demo_tx.o - -rs232.o : rs232.h rs232.c - $(CC) $(CFLAGS) -c rs232.c -o rs232.o - -clean : - $(RM) test_rx test_tx $(objects) demo_rx.o demo_tx.o rs232.o - -# -# -# -# - - - - - diff --git a/RS-232/demo_rx.c b/RS-232/demo_rx.c deleted file mode 100644 index 94bd8c3..0000000 --- a/RS-232/demo_rx.c +++ /dev/null @@ -1,72 +0,0 @@ - -/************************************************** - -file: demo_rx.c -purpose: simple demo that receives characters from -the serial port and print them on the screen, -exit the program by pressing Ctrl-C - -compile with the command: gcc demo_rx.c rs232.c -Wall -Wextra -o2 -o test_rx - -**************************************************/ - -#include -#include - -#ifdef _WIN32 -#include -#else -#include -#endif - -#include "rs232.h" - - - -int main() -{ - int i, n, - cport_nr=0, /* /dev/ttyS0 (COM1 on windows) */ - bdrate=9600; /* 9600 baud */ - - unsigned char buf[4096]; - - char mode[]={'8','N','1',0}; - - - if(RS232_OpenComport(cport_nr, bdrate, mode)) - { - printf("Can not open comport\n"); - - return(0); - } - - while(1) - { - n = RS232_PollComport(cport_nr, buf, 4095); - - if(n > 0) - { - buf[n] = 0; /* always put a "null" at the end of a string! */ - - for(i=0; i < n; i++) - { - if(buf[i] < 32) /* replace unreadable control-codes by dots */ - { - buf[i] = '.'; - } - } - - printf("received %i bytes: %s\n", n, (char *)buf); - } - -#ifdef _WIN32 - Sleep(100); -#else - usleep(100000); /* sleep for 100 milliSeconds */ -#endif - } - - return(0); -} - diff --git a/RS-232/demo_tx.c b/RS-232/demo_tx.c deleted file mode 100644 index bd43fb4..0000000 --- a/RS-232/demo_tx.c +++ /dev/null @@ -1,66 +0,0 @@ - -/************************************************** - -file: demo_tx.c -purpose: simple demo that transmits characters to -the serial port and print them on the screen, -exit the program by pressing Ctrl-C - -compile with the command: gcc demo_tx.c rs232.c -Wall -Wextra -o2 -o test_tx - -**************************************************/ - -#include -#include - -#ifdef _WIN32 -#include -#else -#include -#endif - -#include "rs232.h" - - - -int main() -{ - int i=0, - cport_nr=0, /* /dev/ttyS0 (COM1 on windows) */ - bdrate=9600; /* 9600 baud */ - - char mode[]={'8','N','1',0}, - str[2][512]; - - - strcpy(str[0], "The quick brown fox jumped over the lazy grey dog.\n"); - - strcpy(str[1], "Happy serial programming!\n"); - - if(RS232_OpenComport(cport_nr, bdrate, mode)) - { - printf("Can not open comport\n"); - - return(0); - } - - while(1) - { - RS232_cputs(cport_nr, str[i]); - - printf("sent: %s\n", str[i]); - -#ifdef _WIN32 - Sleep(1000); -#else - usleep(1000000); /* sleep for 1 Second */ -#endif - - i++; - - i %= 2; - } - - return(0); -} - diff --git a/RS-232/doc.txt b/RS-232/doc.txt deleted file mode 100644 index 863ad22..0000000 --- a/RS-232/doc.txt +++ /dev/null @@ -1,230 +0,0 @@ - -Library: RS-232 -Author: Teunis van Beelen -Url: http://www.teuniz.net/RS-232/ -E-mail: teuniz@gmail.com -License: GPLv3 - -Last revision: November 22, 2017 - - - -int RS232_OpenComport(int comport_number, int baudrate, const char * mode) - - Opens the comport, comportnumber starts with 0 (see the list of numbers). - Baudrate is expressed in baud per second i.e 115200 (see the list of possible baudrates). - Mode is a string in the form of "8N1", "7E2", etc. - 8N1 means eight databits, no parity, one stopbit. If in doubt, use 8N1 (see the list of possible modes). - Returns 1 in case of an error. - In case the comport is already opened (by another process), - it will not open the port but raise an error instead. - -int RS232_PollComport(int comport_number, unsigned char *buf, int size) - - Gets characters from the serial port (if any). Buf is a pointer to a buffer - and size the size of the buffer in bytes. - Returns the amount of received characters into the buffer. This can be less than size or zero! - It does not block or wait, it returns immediately, no matter if any characters have been received or not. - After succesfully opening the COM-port, connect this function to a timer. - The timer should have an interval of approx. 20 to 100 milliSeconds. - Do not forget to stop the timer before closing the COM-port. - Allways check the return value! The return value tells you how many bytes - are actually received and present in your buffer! - -int RS232_SendByte(int comport_number, unsigned char byte) - - Sends a byte via the serial port. Returns 1 in case of an error. - -int RS232_SendBuf(int comport_number, unsigned char *buf, int size) - - Sends multiple bytes via the serial port. Buf is a pointer to a buffer - and size the size of the buffer in bytes. - Returns -1 in case of an error, otherwise it returns the amount of bytes sent. - This function blocks (it returns after all the bytes have been processed). - -void RS232_CloseComport(int comport_number) - - Closes the serial port. - -void RS232_cputs(int comport_number, const char *text) - - Sends a string via the serial port. String must be null-terminated. - -int RS232_GetPortnr(const char *devname) - - Returns the comport number based on the device name e.g. "ttyS0" or "COM1". - (Doesn't mean the device actually exists!) - Returns -1 when not found. - - -The following functions are normally not needed but can be used to set or check the status of the control-lines: -================================================================================================================ - -void RS232_enableDTR(int comport_number) - - Sets the DTR line high (active state). - -void RS232_disableDTR(int comport_number) - - Sets the DTR line low (non active state). - -void RS232_enableRTS(int comport_number) - - Sets the RTS line high (active state). - -void RS232_disableRTS(int comport_number) - - Sets the RTS line low (non active state). - -int RS232_IsDSREnabled(int comport_number) - - Checks the status of the DSR-pin. Returns 1 when the the DSR line is high (active state), otherwise 0. - -int RS232_IsCTSEnabled(int comport_number) - - Checks the status of the CTS-pin. Returns 1 when the the CTS line is high (active state), otherwise 0. - -int RS232_IsDCDEnabled(int comport_number) - - Checks the status of the DCD-pin. Returns 1 when the the DCD line is high (active state), otherwise 0. - - -The following functions are normally not needed but can be used to empty the rx/tx buffers: -=========================================================================================== - -("discards data written to the serial port but not transmitted, or data received but not read") - -void RS232_flushRX(int comport_number) - - Flushes data received but not read. - -void RS232_flushTX(int comport_number) - - Flushes data written but not transmitted. - -void RS232_flushRXTX(int comport_number) - - Flushes both data received but not read, and data written but not transmitted. - - - -Notes: - -You don't need to call RS232_PollComport() when you only want to send characters. -Sending and receiving do not influence eachother. - -The os (kernel) has an internal buffer of 4096 bytes (for traditional onboard serial ports). -USB/Serial-converter drivers use much bigger buffers (multiples of 4096). -If this buffer is full and a new character arrives on the serial port, -the oldest character in the buffer will be overwritten and thus will be lost. - -After a successfull call to RS232_OpenComport(), the os will start to buffer incoming characters. - -tip: To get access to the serial port on Linux, you need to be a member of the group "dialout". - -Note: Traditional (on-board) UART's usually have a speed limit of max. 115200 baud. - Special cards and USB to Serial converters can usually be set to higher baudrates. - - -List of comport numbers, possible baudrates and modes: - - Linux windows -0 ttyS0 COM1 -1 ttyS1 COM2 -2 ttyS2 COM3 -3 ttyS3 COM4 -4 ttyS4 COM5 -5 ttyS5 COM6 -6 ttyS6 COM7 -7 ttyS7 COM8 -8 ttyS8 COM9 -9 ttyS9 COM10 -10 ttyS10 COM11 -11 ttyS11 COM12 -12 ttyS12 COM13 -13 ttyS13 COM14 -14 ttyS14 COM15 -15 ttyS15 COM16 -16 ttyUSB0 n.a. -17 ttyUSB1 n.a. -18 ttyUSB2 n.a. -19 ttyUSB3 n.a. -20 ttyUSB4 n.a. -21 ttyUSB5 n.a. -22 ttyAMA0 n.a. -23 ttyAMA1 n.a. -24 ttyACM0 n.a. -25 ttyACM1 n.a. -26 rfcomm0 n.a. -27 rfcomm1 n.a. -28 ircomm0 n.a. -29 ircomm1 n.a. - FreeBSD -30 cuau0 n.a. -31 cuau1 n.a. -32 cuau2 n.a. -33 cuau3 n.a. -34 cuaU0 n.a. -35 cuaU1 n.a. -36 cuaU2 n.a. -37 cuaU3 n.a. - -Linux windows -50 n.a. -75 n.a. -110 110 -134 n.a. -150 n.a. -200 n.a. -300 300 -600 600 -1200 1200 -1800 n.a. -2400 2400 -4800 4800 -9600 9600 -19200 19200 -38400 38400 -57600 57600 -115200 115200 -230400 128000 -460800 256000 -500000 500000 -576000 n.a. -921600 n.a. -1000000 1000000 -1152000 n.a. -1500000 n.a. -2000000 n.a. -2500000 n.a. -3000000 n.a. -3500000 n.a. -4000000 n.a. - -Mode -8N1 -8O1 -8E1 -8N2 -8O2 -8E2 -7N1 -7O1 -7E1 -7N2 -7O2 -7E2 -6N1 -6O1 -6E1 -6N2 -6O2 -6E2 -5N1 -5O1 -5E1 -5N2 -5O2 -5E2 - - diff --git a/RS-232/gpl.txt b/RS-232/gpl.txt deleted file mode 100644 index e43d6cf..0000000 --- a/RS-232/gpl.txt +++ /dev/null @@ -1,677 +0,0 @@ - - - GNU GENERAL PUBLIC LICENSE - Version 3, 29 June 2007 - - Copyright (C) 2007 Free Software Foundation, Inc. - Everyone is permitted to copy and distribute verbatim copies - of this license document, but changing it is not allowed. - - Preamble - - The GNU General Public License is a free, copyleft license for -software and other kinds of works. - - The licenses for most software and other practical works are designed -to take away your freedom to share and change the works. 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If your program is a subroutine library, you -may consider it more useful to permit linking proprietary applications with -the library. If this is what you want to do, use the GNU Lesser General -Public License instead of this License. But first, please read -. - diff --git a/RS-232/howto_compile.txt b/RS-232/howto_compile.txt deleted file mode 100644 index de152cb..0000000 --- a/RS-232/howto_compile.txt +++ /dev/null @@ -1,28 +0,0 @@ - -Compiling the demo's can be done as follows: - -gcc demo_rx.c rs232.c -Wall -Wextra -o2 -o test_rx - -gcc demo_tx.c rs232.c -Wall -Wextra -o2 -o test_tx - -or use the makefile by entering "make" - -Run the demo by typing: - -./test_rx - -or - -./test_tx - - - -To include this library into your project: - -Put the two files rs232.h and rs232.c in your project/sourcedirectory. - -Write #include "rs232.h" in your sourcefiles that needs access to the library. - -Add the file rs232.c to your project settings (in order to get it compiled and linked with your program). - - diff --git a/RS-232/rs232.c b/RS-232/rs232.c deleted file mode 100644 index 31edd53..0000000 --- a/RS-232/rs232.c +++ /dev/null @@ -1,820 +0,0 @@ -/* -*************************************************************************** -* -* Author: Teunis van Beelen -* -* Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Teunis van Beelen -* -* Email: 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, either version 3 of the License, or -* (at your option) any later version. -* -* 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, see . -* -*************************************************************************** -*/ - - -/* Last revision: November 22, 2017 */ - -/* For more info and how to use this library, visit: http://www.teuniz.net/RS-232/ */ - - -#include "rs232.h" - - -#if defined(__linux__) || defined(__FreeBSD__) /* Linux & FreeBSD */ - -#define RS232_PORTNR 38 - - -int Cport[RS232_PORTNR], - error; - -struct termios new_port_settings, - old_port_settings[RS232_PORTNR]; - -char *comports[RS232_PORTNR]={"/dev/ttyS0","/dev/ttyS1","/dev/ttyS2","/dev/ttyS3","/dev/ttyS4","/dev/ttyS5", - "/dev/ttyS6","/dev/ttyS7","/dev/ttyS8","/dev/ttyS9","/dev/ttyS10","/dev/ttyS11", - "/dev/ttyS12","/dev/ttyS13","/dev/ttyS14","/dev/ttyS15","/dev/ttyUSB0", - "/dev/ttyUSB1","/dev/ttyUSB2","/dev/ttyUSB3","/dev/ttyUSB4","/dev/ttyUSB5", - "/dev/ttyAMA0","/dev/ttyAMA1","/dev/ttyACM0","/dev/ttyACM1", - "/dev/rfcomm0","/dev/rfcomm1","/dev/ircomm0","/dev/ircomm1", - "/dev/cuau0","/dev/cuau1","/dev/cuau2","/dev/cuau3", - "/dev/cuaU0","/dev/cuaU1","/dev/cuaU2","/dev/cuaU3"}; - -int RS232_OpenComport(int comport_number, int baudrate, const char *mode) -{ - int baudr, - status; - - if((comport_number>=RS232_PORTNR)||(comport_number<0)) - { - printf("illegal comport number\n"); - return(1); - } - - 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 1152000 : 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; - } - - int cbits=CS8, - cpar=0, - ipar=IGNPAR, - bstop=0; - - if(strlen(mode) != 3) - { - printf("invalid mode \"%s\"\n", mode); - return(1); - } - - switch(mode[0]) - { - case '8': cbits = CS8; - break; - case '7': cbits = CS7; - break; - case '6': cbits = CS6; - break; - case '5': cbits = CS5; - break; - default : printf("invalid number of data-bits '%c'\n", mode[0]); - return(1); - break; - } - - switch(mode[1]) - { - case 'N': - case 'n': cpar = 0; - ipar = IGNPAR; - break; - case 'E': - case 'e': cpar = PARENB; - ipar = INPCK; - break; - case 'O': - case 'o': cpar = (PARENB | PARODD); - ipar = INPCK; - break; - default : printf("invalid parity '%c'\n", mode[1]); - return(1); - break; - } - - switch(mode[2]) - { - case '1': bstop = 0; - break; - case '2': bstop = CSTOPB; - break; - default : printf("invalid number of stop bits '%c'\n", mode[2]); - return(1); - break; - } - -/* -http://pubs.opengroup.org/onlinepubs/7908799/xsh/termios.h.html - -http://man7.org/linux/man-pages/man3/termios.3.html -*/ - - Cport[comport_number] = open(comports[comport_number], O_RDWR | O_NOCTTY | O_NDELAY); - if(Cport[comport_number]==-1) - { - perror("unable to open comport "); - return(1); - } - - /* lock access so that another process can't also use the port */ - if(flock(Cport[comport_number], LOCK_EX | LOCK_NB) != 0) - { - close(Cport[comport_number]); - perror("Another process has locked the comport."); - return(1); - } - - error = tcgetattr(Cport[comport_number], old_port_settings + comport_number); - if(error==-1) - { - close(Cport[comport_number]); - flock(Cport[comport_number], LOCK_UN); /* free the port so that others can use it. */ - perror("unable to read portsettings "); - return(1); - } - memset(&new_port_settings, 0, sizeof(new_port_settings)); /* clear the new struct */ - - new_port_settings.c_cflag = cbits | cpar | bstop | CLOCAL | CREAD; - new_port_settings.c_iflag = ipar; - 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] = 0; /* block untill a timer expires (n * 100 mSec.) */ - - cfsetispeed(&new_port_settings, baudr); - cfsetospeed(&new_port_settings, baudr); - - error = tcsetattr(Cport[comport_number], TCSANOW, &new_port_settings); - if(error==-1) - { - tcsetattr(Cport[comport_number], TCSANOW, old_port_settings + comport_number); - close(Cport[comport_number]); - flock(Cport[comport_number], LOCK_UN); /* free the port so that others can use it. */ - perror("unable to adjust portsettings "); - return(1); - } - -/* http://man7.org/linux/man-pages/man4/tty_ioctl.4.html */ - - if(ioctl(Cport[comport_number], TIOCMGET, &status) == -1) - { - tcsetattr(Cport[comport_number], TCSANOW, old_port_settings + comport_number); - flock(Cport[comport_number], LOCK_UN); /* free the port so that others can use it. */ - perror("unable to get portstatus"); - return(1); - } - - status |= TIOCM_DTR; /* turn on DTR */ - status |= TIOCM_RTS; /* turn on RTS */ - - if(ioctl(Cport[comport_number], TIOCMSET, &status) == -1) - { - tcsetattr(Cport[comport_number], TCSANOW, old_port_settings + comport_number); - flock(Cport[comport_number], LOCK_UN); /* free the port so that others can use it. */ - perror("unable to set portstatus"); - return(1); - } - - return(0); -} - - -int RS232_PollComport(int comport_number, unsigned char *buf, int size) -{ - int n; - - n = read(Cport[comport_number], buf, size); - - if(n < 0) - { - if(errno == EAGAIN) return 0; - } - - return(n); -} - - -int RS232_SendByte(int comport_number, unsigned char byte) -{ - int n = write(Cport[comport_number], &byte, 1); - if(n < 0) - { - if(errno == EAGAIN) - { - return 0; - } - else - { - return 1; - } - } - - return(0); -} - - -int RS232_SendBuf(int comport_number, unsigned char *buf, int size) -{ - int n = write(Cport[comport_number], buf, size); - if(n < 0) - { - if(errno == EAGAIN) - { - return 0; - } - else - { - return -1; - } - } - - return(n); -} - - -void RS232_CloseComport(int comport_number) -{ - int status; - - if(ioctl(Cport[comport_number], TIOCMGET, &status) == -1) - { - perror("unable to get portstatus"); - } - - status &= ~TIOCM_DTR; /* turn off DTR */ - status &= ~TIOCM_RTS; /* turn off RTS */ - - if(ioctl(Cport[comport_number], TIOCMSET, &status) == -1) - { - perror("unable to set portstatus"); - } - - tcsetattr(Cport[comport_number], TCSANOW, old_port_settings + comport_number); - close(Cport[comport_number]); - - flock(Cport[comport_number], LOCK_UN); /* free the port so that others can use it. */ -} - -/* -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 see TIOCM_CAR -TIOCM_RNG RNG (ring) -TIOCM_RI see TIOCM_RNG -TIOCM_DSR DSR (data set ready) - -http://man7.org/linux/man-pages/man4/tty_ioctl.4.html -*/ - -int RS232_IsDCDEnabled(int comport_number) -{ - int status; - - ioctl(Cport[comport_number], TIOCMGET, &status); - - if(status&TIOCM_CAR) return(1); - else return(0); -} - - -int RS232_IsCTSEnabled(int comport_number) -{ - int status; - - ioctl(Cport[comport_number], TIOCMGET, &status); - - if(status&TIOCM_CTS) return(1); - else return(0); -} - - -int RS232_IsDSREnabled(int comport_number) -{ - int status; - - ioctl(Cport[comport_number], TIOCMGET, &status); - - if(status&TIOCM_DSR) return(1); - else return(0); -} - - -void RS232_enableDTR(int comport_number) -{ - int status; - - if(ioctl(Cport[comport_number], TIOCMGET, &status) == -1) - { - perror("unable to get portstatus"); - } - - status |= TIOCM_DTR; /* turn on DTR */ - - if(ioctl(Cport[comport_number], TIOCMSET, &status) == -1) - { - perror("unable to set portstatus"); - } -} - - -void RS232_disableDTR(int comport_number) -{ - int status; - - if(ioctl(Cport[comport_number], TIOCMGET, &status) == -1) - { - perror("unable to get portstatus"); - } - - status &= ~TIOCM_DTR; /* turn off DTR */ - - if(ioctl(Cport[comport_number], TIOCMSET, &status) == -1) - { - perror("unable to set portstatus"); - } -} - - -void RS232_enableRTS(int comport_number) -{ - int status; - - if(ioctl(Cport[comport_number], TIOCMGET, &status) == -1) - { - perror("unable to get portstatus"); - } - - status |= TIOCM_RTS; /* turn on RTS */ - - if(ioctl(Cport[comport_number], TIOCMSET, &status) == -1) - { - perror("unable to set portstatus"); - } -} - - -void RS232_disableRTS(int comport_number) -{ - int status; - - if(ioctl(Cport[comport_number], TIOCMGET, &status) == -1) - { - perror("unable to get portstatus"); - } - - status &= ~TIOCM_RTS; /* turn off RTS */ - - if(ioctl(Cport[comport_number], TIOCMSET, &status) == -1) - { - perror("unable to set portstatus"); - } -} - - -void RS232_flushRX(int comport_number) -{ - tcflush(Cport[comport_number], TCIFLUSH); -} - - -void RS232_flushTX(int comport_number) -{ - tcflush(Cport[comport_number], TCOFLUSH); -} - - -void RS232_flushRXTX(int comport_number) -{ - tcflush(Cport[comport_number], TCIOFLUSH); -} - - -#else /* windows */ - -#define RS232_PORTNR 16 - -HANDLE Cport[RS232_PORTNR]; - - -char *comports[RS232_PORTNR]={"\\\\.\\COM1", "\\\\.\\COM2", "\\\\.\\COM3", "\\\\.\\COM4", - "\\\\.\\COM5", "\\\\.\\COM6", "\\\\.\\COM7", "\\\\.\\COM8", - "\\\\.\\COM9", "\\\\.\\COM10", "\\\\.\\COM11", "\\\\.\\COM12", - "\\\\.\\COM13", "\\\\.\\COM14", "\\\\.\\COM15", "\\\\.\\COM16"}; - -char mode_str[128]; - - -int RS232_OpenComport(int comport_number, int baudrate, const char *mode) -{ - if((comport_number>=RS232_PORTNR)||(comport_number<0)) - { - printf("illegal comport number\n"); - return(1); - } - - switch(baudrate) - { - case 110 : strcpy(mode_str, "baud=110"); - break; - case 300 : strcpy(mode_str, "baud=300"); - break; - case 600 : strcpy(mode_str, "baud=600"); - break; - case 1200 : strcpy(mode_str, "baud=1200"); - break; - case 2400 : strcpy(mode_str, "baud=2400"); - break; - case 4800 : strcpy(mode_str, "baud=4800"); - break; - case 9600 : strcpy(mode_str, "baud=9600"); - break; - case 19200 : strcpy(mode_str, "baud=19200"); - break; - case 38400 : strcpy(mode_str, "baud=38400"); - break; - case 57600 : strcpy(mode_str, "baud=57600"); - break; - case 115200 : strcpy(mode_str, "baud=115200"); - break; - case 128000 : strcpy(mode_str, "baud=128000"); - break; - case 256000 : strcpy(mode_str, "baud=256000"); - break; - case 500000 : strcpy(mode_str, "baud=500000"); - break; - case 1000000 : strcpy(mode_str, "baud=1000000"); - break; - default : printf("invalid baudrate\n"); - return(1); - break; - } - - if(strlen(mode) != 3) - { - printf("invalid mode \"%s\"\n", mode); - return(1); - } - - switch(mode[0]) - { - case '8': strcat(mode_str, " data=8"); - break; - case '7': strcat(mode_str, " data=7"); - break; - case '6': strcat(mode_str, " data=6"); - break; - case '5': strcat(mode_str, " data=5"); - break; - default : printf("invalid number of data-bits '%c'\n", mode[0]); - return(1); - break; - } - - switch(mode[1]) - { - case 'N': - case 'n': strcat(mode_str, " parity=n"); - break; - case 'E': - case 'e': strcat(mode_str, " parity=e"); - break; - case 'O': - case 'o': strcat(mode_str, " parity=o"); - break; - default : printf("invalid parity '%c'\n", mode[1]); - return(1); - break; - } - - switch(mode[2]) - { - case '1': strcat(mode_str, " stop=1"); - break; - case '2': strcat(mode_str, " stop=2"); - break; - default : printf("invalid number of stop bits '%c'\n", mode[2]); - return(1); - break; - } - - strcat(mode_str, " dtr=on rts=on"); - -/* -http://msdn.microsoft.com/en-us/library/windows/desktop/aa363145%28v=vs.85%29.aspx - -http://technet.microsoft.com/en-us/library/cc732236.aspx -*/ - - Cport[comport_number] = CreateFileA(comports[comport_number], - GENERIC_READ|GENERIC_WRITE, - 0, /* no share */ - NULL, /* no security */ - OPEN_EXISTING, - 0, /* no threads */ - NULL); /* no templates */ - - if(Cport[comport_number]==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(mode_str, &port_settings)) - { - printf("unable to set comport dcb settings\n"); - CloseHandle(Cport[comport_number]); - return(1); - } - - if(!SetCommState(Cport[comport_number], &port_settings)) - { - printf("unable to set comport cfg settings\n"); - CloseHandle(Cport[comport_number]); - return(1); - } - - COMMTIMEOUTS Cptimeouts; - - Cptimeouts.ReadIntervalTimeout = MAXDWORD; - Cptimeouts.ReadTotalTimeoutMultiplier = 0; - Cptimeouts.ReadTotalTimeoutConstant = 0; - Cptimeouts.WriteTotalTimeoutMultiplier = 0; - Cptimeouts.WriteTotalTimeoutConstant = 0; - - if(!SetCommTimeouts(Cport[comport_number], &Cptimeouts)) - { - printf("unable to set comport time-out settings\n"); - CloseHandle(Cport[comport_number]); - return(1); - } - - return(0); -} - - -int RS232_PollComport(int comport_number, unsigned char *buf, int size) -{ - int n; - -/* added the void pointer cast, otherwise gcc will complain about */ -/* "warning: dereferencing type-punned pointer will break strict aliasing rules" */ - - ReadFile(Cport[comport_number], buf, size, (LPDWORD)((void *)&n), NULL); - - return(n); -} - - -int RS232_SendByte(int comport_number, unsigned char byte) -{ - int n; - - WriteFile(Cport[comport_number], &byte, 1, (LPDWORD)((void *)&n), NULL); - - if(n<0) return(1); - - return(0); -} - - -int RS232_SendBuf(int comport_number, unsigned char *buf, int size) -{ - int n; - - if(WriteFile(Cport[comport_number], buf, size, (LPDWORD)((void *)&n), NULL)) - { - return(n); - } - - return(-1); -} - - -void RS232_CloseComport(int comport_number) -{ - CloseHandle(Cport[comport_number]); -} - -/* -http://msdn.microsoft.com/en-us/library/windows/desktop/aa363258%28v=vs.85%29.aspx -*/ - -int RS232_IsDCDEnabled(int comport_number) -{ - int status; - - GetCommModemStatus(Cport[comport_number], (LPDWORD)((void *)&status)); - - if(status&MS_RLSD_ON) return(1); - else return(0); -} - - -int RS232_IsCTSEnabled(int comport_number) -{ - int status; - - GetCommModemStatus(Cport[comport_number], (LPDWORD)((void *)&status)); - - if(status&MS_CTS_ON) return(1); - else return(0); -} - - -int RS232_IsDSREnabled(int comport_number) -{ - int status; - - GetCommModemStatus(Cport[comport_number], (LPDWORD)((void *)&status)); - - if(status&MS_DSR_ON) return(1); - else return(0); -} - - -void RS232_enableDTR(int comport_number) -{ - EscapeCommFunction(Cport[comport_number], SETDTR); -} - - -void RS232_disableDTR(int comport_number) -{ - EscapeCommFunction(Cport[comport_number], CLRDTR); -} - - -void RS232_enableRTS(int comport_number) -{ - EscapeCommFunction(Cport[comport_number], SETRTS); -} - - -void RS232_disableRTS(int comport_number) -{ - EscapeCommFunction(Cport[comport_number], CLRRTS); -} - -/* -https://msdn.microsoft.com/en-us/library/windows/desktop/aa363428%28v=vs.85%29.aspx -*/ - -void RS232_flushRX(int comport_number) -{ - PurgeComm(Cport[comport_number], PURGE_RXCLEAR | PURGE_RXABORT); -} - - -void RS232_flushTX(int comport_number) -{ - PurgeComm(Cport[comport_number], PURGE_TXCLEAR | PURGE_TXABORT); -} - - -void RS232_flushRXTX(int comport_number) -{ - PurgeComm(Cport[comport_number], PURGE_RXCLEAR | PURGE_RXABORT); - PurgeComm(Cport[comport_number], PURGE_TXCLEAR | PURGE_TXABORT); -} - - -#endif - - -void RS232_cputs(int comport_number, const char *text) /* sends a string to serial port */ -{ - while(*text != 0) RS232_SendByte(comport_number, *(text++)); -} - - -/* return index in comports matching to device name or -1 if not found */ -int RS232_GetPortnr(const char *devname) -{ - int i; - - char str[32]; - -#if defined(__linux__) || defined(__FreeBSD__) /* Linux & FreeBSD */ - strcpy(str, "/dev/"); -#else /* windows */ - strcpy(str, "\\\\.\\"); -#endif - strncat(str, devname, 16); - str[31] = 0; - - for(i=0; i. -* -*************************************************************************** -*/ - -/* Last revision: August 5, 2017 */ - -/* For more info and how to use this library, visit: http://www.teuniz.net/RS-232/ */ - - -#ifndef rs232_INCLUDED -#define rs232_INCLUDED - -#ifdef __cplusplus -extern "C" { -#endif - -#include -#include - - - -#if defined(__linux__) || defined(__FreeBSD__) - -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#else - -#include - -#endif - -int RS232_OpenComport(int, int, const char *); -int RS232_PollComport(int, unsigned char *, int); -int RS232_SendByte(int, unsigned char); -int RS232_SendBuf(int, unsigned char *, int); -void RS232_CloseComport(int); -void RS232_cputs(int, const char *); -int RS232_IsDCDEnabled(int); -int RS232_IsCTSEnabled(int); -int RS232_IsDSREnabled(int); -void RS232_enableDTR(int); -void RS232_disableDTR(int); -void RS232_enableRTS(int); -void RS232_disableRTS(int); -void RS232_flushRX(int); -void RS232_flushTX(int); -void RS232_flushRXTX(int); -int RS232_GetPortnr(const char *); - -#ifdef __cplusplus -} /* extern "C" */ -#endif - -#endif - - -- cgit v1.1