diff options
| -rw-r--r-- | build/Makefile | 15 | ||||
| -rw-r--r-- | src/host/pipe_image.c | 63 | ||||
| -rw-r--r-- | src/lib/rs232/rs232.c | 873 | ||||
| -rw-r--r-- | src/lib/rs232/rs232.h | 88 |
4 files changed, 14 insertions, 1025 deletions
diff --git a/build/Makefile b/build/Makefile index 53f8c98..bf87620 100644 --- a/build/Makefile +++ b/build/Makefile @@ -1,6 +1,4 @@ -HOST_CC ?= gcc - -HOST_CFLAGS ?= -Wall -std=gnu99 -I../src/lib/rs232 -O3 +CFLAGS ?= -Wall -std=gnu99 -O2 ARM_BASE ?= arm-none-eabi @@ -77,13 +75,6 @@ ramfs.img : makefs $(RAMFS_FILES) ./makefs $(RAMFS_FILES) > $@ -pipe_image : pipe_image.o rs232.o - $(HOST_CC) $^ -o $@ - -makefs : makefs.o - $(HOST_CC) $^ -o $@ - - qemu-elf : kernel.elf qemu-system-arm -m 256 -M raspi2 -serial stdio -kernel $^ @@ -91,11 +82,11 @@ qemu-bin : kernel.img qemu-system-arm -m 256 -M raspi2 -serial stdio -kernel $^ qemu-loader : loader.img kernel.img pipe_image - ./pipe_image --stdout | \ + ./pipe_image | \ qemu-system-arm -m 256 -M raspi2 -serial stdio -kernel $< run-on-rpi : kernel.img pipe_image - ./pipe_image --stdout | \ + ./pipe_image | \ sudo socat FILE:/dev/ttyUSB0,b115200,raw - sudo screen /dev/ttyUSB0 115200,cs8,-parenb,-cstopb,-hupcl diff --git a/src/host/pipe_image.c b/src/host/pipe_image.c index 105f9a1..3543053 100644 --- a/src/host/pipe_image.c +++ b/src/host/pipe_image.c @@ -3,26 +3,16 @@ #include <endian.h> #include <stdint.h> #include <sys/types.h> -#include "rs232.h" #define ANSI_FG_RED "\033[0;31m" #define ANSI_FG_DEFAULT "\033[0;39m" -/* This program pipes it's argument file to /dev/ttyUSB0 or stdout */ +/* This program pipes it's argument file to stdout */ /* prepending it with it's size (4 bytes, little endian). */ /* It is intended to be used with our bootloader. */ int main(int argc, const char **argv) { const char *image_file_name = "kernel.img"; - _Bool stdout_instead_of_uart = 0; - - if (argc > 1) - if (!strcmp(argv[1], "--stdout")) - { - stdout_instead_of_uart = 1; - argc--; - argv++; - } if (argc > 1) image_file_name = argv[1]; @@ -46,26 +36,10 @@ int main(int argc, const char **argv) { if (fseek(image_file_handle, 0, SEEK_SET)) err(-1, "error navigating through file"); - //init comport - const int comport=16; - - if (!stdout_instead_of_uart) - if (RS232_OpenComport(comport, 115200, "8N1", 1) == 1) - err(-1, "Error opening comport"); - uint32_t image_size_le = htole32(image_size); - if (stdout_instead_of_uart) - { - if (fwrite((unsigned char*) &image_size_le, 4, 1, stdout) != 1) - err(-1, "error writing number to stdout"); - } - else - { - if (RS232_SendBuf(comport, (unsigned char*) &image_size_le, 4) - == -1) - err(-1, "error writing number to serial"); - } + if (fwrite((unsigned char*) &image_size_le, 4, 1, stdout) != 1) + err(-1, "error writing number to stdout"); ssize_t bytes_left = image_size; @@ -77,36 +51,21 @@ int main(int argc, const char **argv) { < 1) err(-1, "error reading the file"); - if (stdout_instead_of_uart) - { - if (fwrite((unsigned char*) buf, bytes_read, 1, stdout) != 1) - err(-1, "error writing to stdout"); - } - else - { - if (RS232_SendBuf(comport, buf, bytes_read) == -1) - err(-1, "error writing to serial"); - } + if (fwrite((unsigned char*) buf, bytes_read, 1, stdout) != 1) + err(-1, "error writing to stdout"); bytes_left -= bytes_read; } + /* - while(1){ + // not working - stdin breaks + while(1) + { int bytes_read=read(0,buf,sizeof(buf)); - if (stdout_instead_of_uart) - { - if (fwrite((unsigned char*) buf, bytes_read, 1, stdout) != 1) - err(-1, "error writing to stdout"); - } - else - { - if (RS232_SendBuf(comport, buf, bytes_read) == 1) - err(-1, "error writing to serial"); - } + if (fwrite((unsigned char*) buf, bytes_read, 1, stdout) != 1) + err(-1, "error writing to stdout"); } */ - if (!stdout_instead_of_uart) - RS232_CloseComport(comport); return 0; } diff --git a/src/lib/rs232/rs232.c b/src/lib/rs232/rs232.c deleted file mode 100644 index 0ae2a59..0000000 --- a/src/lib/rs232/rs232.c +++ /dev/null @@ -1,873 +0,0 @@ -/* -*************************************************************************** -* -* Author: Teunis van Beelen -* -* Copyright (C) 2005 - 2019 Teunis van Beelen -* -* Email: teuniz@protonmail.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 <http://www.gnu.org/licenses/>. -* -*************************************************************************** -*/ - - -/* Last revision: May 31, 2019 */ -/* Added support for hardware flow control using RTS and CTS lines */ -/* 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 flowctrl) -{ - 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; - if(flowctrl) - { - new_port_settings.c_cflag |= CRTSCTS; - } - 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_IsRINGEnabled(int comport_number) -{ - int status; - - ioctl(Cport[comport_number], TIOCMGET, &status); - - if(status&TIOCM_RNG) 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 32 - -HANDLE Cport[RS232_PORTNR]; - - -char *comports[RS232_PORTNR]={"\\\\.\\COM1", "\\\\.\\COM2", "\\\\.\\COM3", "\\\\.\\COM4", - "\\\\.\\COM5", "\\\\.\\COM6", "\\\\.\\COM7", "\\\\.\\COM8", - "\\\\.\\COM9", "\\\\.\\COM10", "\\\\.\\COM11", "\\\\.\\COM12", - "\\\\.\\COM13", "\\\\.\\COM14", "\\\\.\\COM15", "\\\\.\\COM16", - "\\\\.\\COM17", "\\\\.\\COM18", "\\\\.\\COM19", "\\\\.\\COM20", - "\\\\.\\COM21", "\\\\.\\COM22", "\\\\.\\COM23", "\\\\.\\COM24", - "\\\\.\\COM25", "\\\\.\\COM26", "\\\\.\\COM27", "\\\\.\\COM28", - "\\\\.\\COM29", "\\\\.\\COM30", "\\\\.\\COM31", "\\\\.\\COM32"}; - -char mode_str[128]; - - -int RS232_OpenComport(int comport_number, int baudrate, const char *mode, int flowctrl) -{ - 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 921600 : strcpy(mode_str, "baud=921600"); - break; - case 1000000 : strcpy(mode_str, "baud=1000000"); - break; - case 1500000 : strcpy(mode_str, "baud=1500000"); - break; - case 2000000 : strcpy(mode_str, "baud=2000000"); - break; - case 3000000 : strcpy(mode_str, "baud=3000000"); - 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; - } - - if(flowctrl) - { - strcat(mode_str, " xon=off to=off odsr=off dtr=on rts=off"); - } - else - { - strcat(mode_str, " xon=off to=off odsr=off 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 - -https://docs.microsoft.com/en-us/windows/desktop/api/winbase/ns-winbase-_dcb -*/ - - 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(flowctrl) - { - port_settings.fOutxCtsFlow = TRUE; - port_settings.fRtsControl = RTS_CONTROL_HANDSHAKE; - } - - 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_IsRINGEnabled(int comport_number) -{ - int status; - - GetCommModemStatus(Cport[comport_number], (LPDWORD)((void *)&status)); - - if(status&MS_RING_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<RS232_PORTNR; i++) - { - if(!strcmp(comports[i], str)) - { - return i; - } - } - - return -1; /* device not found */ -} - - - - - - - - - - - diff --git a/src/lib/rs232/rs232.h b/src/lib/rs232/rs232.h deleted file mode 100644 index 73a2040..0000000 --- a/src/lib/rs232/rs232.h +++ /dev/null @@ -1,88 +0,0 @@ -/* -*************************************************************************** -* -* Author: Teunis van Beelen -* -* Copyright (C) 2005 - 2019 Teunis van Beelen -* -* Email: teuniz@protonmail.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 <http://www.gnu.org/licenses/>. -* -*************************************************************************** -*/ - -/* Last revision: May 31, 2019 */ - -/* 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 <stdio.h> -#include <string.h> - - - -#if defined(__linux__) || defined(__FreeBSD__) - -#include <termios.h> -#include <sys/ioctl.h> -#include <unistd.h> -#include <fcntl.h> -#include <sys/types.h> -#include <sys/stat.h> -#include <limits.h> -#include <sys/file.h> -#include <errno.h> - -#else - -#include <windows.h> - -#endif - -int RS232_OpenComport(int, int, const char *, int); -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_IsRINGEnabled(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 - - |