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[/] [or1k/] [trunk/] [gdb-5.0/] [gdb/] [rdi-share/] [unixcomm.c] - Rev 1775
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/* * Copyright (C) 1995 Advanced RISC Machines Limited. All rights reserved. * * This software may be freely used, copied, modified, and distributed * provided that the above copyright notice is preserved in all copies of the * software. */ /* -*-C-*- * * $Revision: 1.1.1.1 $ * $Date: 2001-05-18 11:16:47 $ * */ #ifdef __hpux # define _POSIX_SOURCE 1 #endif #include <stdio.h> #include <unistd.h> #include <ctype.h> #ifdef __hpux # define _TERMIOS_INCLUDED # include <sys/termio.h> # undef _TERMIOS_INCLUDED #else # include <termios.h> #endif #include <string.h> #include <fcntl.h> #include <errno.h> #include <stdarg.h> #include <sys/types.h> #include <sys/time.h> #if defined (__FreeBSD__) || defined (__NetBSD__) || defined (__OpenBSD__) || defined (bsdi) #undef BSD #include <sys/ioctl.h> #endif #ifdef sun # include <sys/ioccom.h> # ifdef __svr4__ # include <sys/bpp_io.h> # else # include <sbusdev/bpp_io.h> # endif #endif #ifdef BSD # ifdef sun # include <sys/ttydev.h> # endif # ifdef __alpha # include <sys/ioctl.h> # else # include <sys/filio.h> # endif #endif #ifdef __hpux # define _INCLUDE_HPUX_SOURCE # include <sys/ioctl.h> # undef _INCLUDE_HPUX_SOURCE #endif #include "host.h" #include "unixcomm.h" #define PP_TIMEOUT 1 /* seconds */ #ifdef sun #define SERIAL_PREFIX "/dev/tty" #define SERPORT1 "/dev/ttya" #define SERPORT2 "/dev/ttyb" #define PARPORT1 "/dev/bpp0" #define PARPORT2 "/dev/bpp1" #endif #ifdef __hpux #define SERIAL_PREFIX "/dev/tty" #define SERPORT1 "/dev/tty00" #define SERPORT2 "/dev/tty01" #define PARPORT1 "/dev/ptr_parallel" #define PARPORT2 "/dev/ptr_parallel" #endif #ifdef __linux__ #define SERIAL_PREFIX "/dev/ttyS" #define SERPORT1 "/dev/ttyS0" #define SERPORT2 "/dev/ttyS1" #define PARPORT1 "/dev/par0" #define PARPORT2 "/dev/par1" #endif #if defined (__FreeBSD__) || defined (__NetBSD__) || defined (__OpenBSD__) || defined (bsdi) #define SERIAL_PREFIX "/dev/cuaa" #define SERPORT1 "/dev/cuaa0" #define SERPORT2 "/dev/cuaa1" #define PARPORT1 "/dev/lpt0" #define PARPORT2 "/dev/lpt1" #endif #if defined(_WIN32) || defined (__CYGWIN32__) #define SERIAL_PREFIX "com" #define SERPORT1 "com1" #define SERPORT2 "com2" #define PARPORT1 "lpt1" #define PARPORT2 "lpt2" #endif /* * Parallel port output pins, used for signalling to target */ #ifdef sun struct bpp_pins bp; #endif static int serpfd = -1; static int parpfd = -1; extern const char *Unix_MatchValidSerialDevice(const char *name) { int i=0; char *sername=NULL; /* Accept no name as the default serial port */ if (name == NULL) { return SERPORT1; } /* Look for the simple cases - 1,2,s,S,/dev/... first, and * afterwards look for S=... clauses, which need parsing properly. */ /* Accept /dev/tty* where * is limited */ if (strlen(name) == strlen(SERPORT1) && strncmp(name, SERIAL_PREFIX, strlen (SERIAL_PREFIX)) == 0) { return name; } /* Accept "1" or "2" or "S" - S is equivalent to "1" */ if (strcmp(name, "1") == 0 || strcmp(name, "S") == 0 || strcmp(name, "s") == 0) { return SERPORT1; } if (strcmp(name, "2") == 0) return SERPORT2; /* It wasn't one of the simple cases, so now we have to parse it * properly */ do { switch (name[i]) { case ',': /* Skip over commas */ i++; break; default: return 0; /* Unexpected character => error - not matched */ case 0: /* End of string means return whatever we have matched */ return sername; case 's': case 'S': case 'h': case 'H': { char ch = tolower(name[i]); int j, continue_from, len; /* If the next character is a comma or a NULL then this is * a request for the default Serial port */ if (name[++i] == 0 || name[i] == ',') { if (ch=='s') sername=SERPORT1; break; } /* Next character must be an = */ if (name[i] != '=') return 0; /* Search for the end of the port spec. (ends in NULL or ,) */ for (j= ++i; name[j] != 0 && name[j] != ','; j++) ; /* Do nothing */ /* Notice whether this is the last thing to parse or not * and also calaculate the length of the string */ if (name[j] == '0') continue_from = -1; else continue_from = j; len=(j-i); /* And now try to match the serial / parallel port */ switch (ch) { case 's': { /* Match serial port */ if (len==1) { if (name[i]=='1') sername=SERPORT1; else if (name[i]=='2') sername=SERPORT2; } else if (len==strlen(SERPORT1)) { if (strncmp(name+i,SERPORT1,strlen(SERPORT1)) == 0) sername=SERPORT1; else if (strncmp(name+i,SERPORT2,strlen(SERPORT2)) == 0) sername=SERPORT2; } break; } case 'h': /* We don't actually deal with the H case here, we just * match it and allow it through. */ break; } if (continue_from == -1) return sername; i = continue_from; break; } } } while (1); return 0; } extern int Unix_IsSerialInUse(void) { if (serpfd >= 0) return -1; return 0; } extern int Unix_OpenSerial(const char *name) { #if defined(BSD) || defined(__CYGWIN32__) serpfd = open(name, O_RDWR); #else serpfd = open(name, O_RDWR | O_NONBLOCK); #endif if (serpfd < 0) { perror("open"); return -1; } #ifdef TIOCEXCL if (ioctl(serpfd, TIOCEXCL) < 0) { close(serpfd); perror("ioctl: TIOCEXCL"); return -1; } #endif return 0; } extern void Unix_CloseSerial(void) { if (serpfd >= 0) { (void)close(serpfd); serpfd = -1; } } extern int Unix_ReadSerial(unsigned char *buf, int n, bool block) { fd_set fdset; struct timeval tv; int err; FD_ZERO(&fdset); FD_SET(serpfd, &fdset); tv.tv_sec = 0; tv.tv_usec = (block ? 10000 : 0); err = select(serpfd + 1, &fdset, NULL, NULL, &tv); if (err < 0 && errno != EINTR) { #ifdef DEBUG perror("select"); #endif panic("select failure"); return -1; } else if (err > 0 && FD_ISSET(serpfd, &fdset)) { int s; s = read(serpfd, buf, n); if (s < 0) perror("read:"); return s; } else /* err == 0 || FD_CLR(serpfd, &fdset) */ { errno = ERRNO_FOR_BLOCKED_IO; return -1; } } extern int Unix_WriteSerial(unsigned char *buf, int n) { return write(serpfd, buf, n); } extern void Unix_ResetSerial(void) { struct termios terminfo; tcgetattr(serpfd, &terminfo); terminfo.c_lflag &= ~(ICANON | ISIG | ECHO | IEXTEN); terminfo.c_iflag &= ~(IGNCR | INPCK | ISTRIP | ICRNL | BRKINT); terminfo.c_iflag |= (IXON | IXOFF | IGNBRK); terminfo.c_cflag = (terminfo.c_cflag & ~CSIZE) | CS8 | CREAD; terminfo.c_cflag &= ~PARENB; terminfo.c_cc[VMIN] = 1; terminfo.c_cc[VTIME] = 0; terminfo.c_oflag &= ~OPOST; tcsetattr(serpfd, TCSAFLUSH, &terminfo); } extern void Unix_SetSerialBaudRate(int baudrate) { struct termios terminfo; tcgetattr(serpfd, &terminfo); cfsetospeed(&terminfo, baudrate); cfsetispeed(&terminfo, baudrate); tcsetattr(serpfd, TCSAFLUSH, &terminfo); } extern void Unix_ioctlNonBlocking(void) { #if defined(BSD) int nonblockingIO = 1; (void)ioctl(serpfd, FIONBIO, &nonblockingIO); if (parpfd != -1) (void)ioctl(parpfd, FIONBIO, &nonblockingIO); #endif } extern void Unix_IsValidParallelDevice( const char *portstring, char **sername, char **parname) { int i=0; *sername=NULL; *parname=NULL; /* Do not recognise a NULL portstring */ if (portstring==NULL) return; do { switch (portstring[i]) { case ',': /* Skip over commas */ i++; break; default: case 0: /* End of string or bad characcter means we have finished */ return; case 's': case 'S': case 'p': case 'P': case 'h': case 'H': { char ch = tolower(portstring[i]); int j, continue_from, len; /* If the next character is a comma or a NULL then this is * a request for the default Serial or Parallel port */ if (portstring[++i] == 0 || portstring[i] == ',') { if (ch=='s') *sername=SERPORT1; else if (ch=='p') *parname=PARPORT1; break; } /* Next character must be an = */ if (portstring[i] != '=') return; /* Search for the end of the port spec. (ends in NULL or ,) */ for (j= ++i; portstring[j] != 0 && portstring[j] != ','; j++) ; /* Do nothing */ /* Notice whether this is the last thing to parse or not * and also calaculate the length of the string */ if (portstring[j] == '0') continue_from = -1; else continue_from = j; len=(j-i); /* And now try to match the serial / parallel port */ switch (ch) { case 's': { /* Match serial port */ if (len==1) { if (portstring[i]=='1') *sername=SERPORT1; else if (portstring[i]=='2') *sername=SERPORT2; } else if (len==strlen(SERPORT1)) { if (strncmp(portstring+i,SERPORT1,strlen(SERPORT1)) == 0) *sername=SERPORT1; else if (strncmp(portstring+i,SERPORT2,strlen(SERPORT2)) == 0) *sername=SERPORT2; } break; } case 'p': { /* Match parallel port */ if (len==1) { if (portstring[i]=='1') *parname=PARPORT1; else if (portstring[i]=='2') *parname=PARPORT2; } else if (len==strlen(PARPORT1)) { if (strncmp(portstring+i,PARPORT1,strlen(PARPORT1)) == 0) *parname=PARPORT1; else if (strncmp(portstring+i,PARPORT2,strlen(PARPORT2)) == 0) *parname=PARPORT2; } break; } case 'h': /* We don't actually deal with the H case here, we just * match it and allow it through. */ break; } if (continue_from == -1) return; i = continue_from; break; } } } while (1); return; /* Will never get here */ } extern int Unix_IsParallelInUse(void) { if (parpfd >= 0) return -1; return 0; } extern int Unix_OpenParallel(const char *name) { #if defined(BSD) parpfd = open(name, O_RDWR); #else parpfd = open(name, O_RDWR | O_NONBLOCK); #endif if (parpfd < 0) { char errbuf[256]; sprintf(errbuf, "open %s", name); perror(errbuf); return -1; } return 0; } extern void Unix_CloseParallel(void) { if (parpfd >= 0) { (void)close(parpfd); parpfd = -1; } } extern unsigned int Unix_WriteParallel(unsigned char *buf, int n) { int ngone; if ((ngone = write(parpfd, buf, n)) < 0) { /* * we ignore errors (except for debug purposes) */ #ifdef DEBUG char errbuf[256]; sprintf(errbuf, "send_packet: write"); perror(errbuf); #endif ngone = 0; } /* finished */ return (unsigned int)ngone; } #ifdef sun extern void Unix_ResetParallel(void) { struct bpp_transfer_parms tp; #ifdef DEBUG printf("serpar_reset\n"); #endif /* * we need to set the parallel port up for BUSY handshaking, * and select the timeout */ if (ioctl(parpfd, BPPIOC_GETPARMS, &tp) < 0) { #ifdef DEBUG perror("ioctl(BPPIOCGETPARMS)"); #endif panic("serpar_reset: cannot get BPP parameters"); } tp.write_handshake = BPP_BUSY_HS; tp.write_timeout = PP_TIMEOUT; if (ioctl(parpfd, BPPIOC_SETPARMS, &tp) < 0) { #ifdef DEBUG perror("ioctl(BPPIOC_SETPARMS)"); #endif panic("serpar_reset: cannot set BPP parameters"); } } #else /* Parallel not supported on HP */ extern void Unix_ResetParallel(void) { } #endif
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