896 lines
16 KiB
C
896 lines
16 KiB
C
/*
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* DEC 93 Erik Bos (erik@trashcan.hacktic.nl)
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <termios.h>
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#include <fcntl.h>
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#include <string.h>
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#include <errno.h>
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#include <ctype.h>
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#include <sys/stat.h>
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#if defined(__NetBSD__) || defined(__FreeBSD__)
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#include <errno.h>
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#include <sys/ioctl.h>
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#endif
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#include <unistd.h>
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#include "wine.h"
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#include "windows.h"
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#include "comm.h"
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/* #define DEBUG_COMM /* */
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int commerror = 0, eventmask = 0;
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struct DosDeviceStruct COM[MAX_PORTS];
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struct DosDeviceStruct LPT[MAX_PORTS];
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void Comm_DeInit(void);
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void Comm_Init(void)
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{
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int x, serial = 0, parallel = 0;
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char option[10], temp[256];
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struct stat st;
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for (x=0; x!=MAX_PORTS; x++) {
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strcpy(option,"COMx");
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option[3] = '0' + x;
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option[4] = '\0';
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GetPrivateProfileString("serialports", option, "*", temp, sizeof(temp), WINE_INI);
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if (!strcmp(temp, "*") || *temp == '\0')
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COM[serial].devicename = NULL;
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else {
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stat(temp, &st);
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if (!S_ISCHR(st.st_mode))
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fprintf(stderr,"comm: can 't use `%s' as COM%d !\n", temp, x);
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else
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if ((COM[serial].devicename = malloc(strlen(temp)+1)) == NULL)
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fprintf(stderr,"comm: can't malloc for device info!\n");
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else {
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COM[serial].fd = 0;
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strcpy(COM[serial].devicename, temp);
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serial++;
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}
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}
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strcpy(option, "LPTx");
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option[3] = '0' + x;
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option[4] = '\0';
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GetPrivateProfileString("parallelports", option, "*", temp, sizeof(temp), WINE_INI);
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if (!strcmp(temp, "*") || *temp == '\0')
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LPT[parallel].devicename = NULL;
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else {
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stat(temp, &st);
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if (!S_ISCHR(st.st_mode))
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fprintf(stderr,"comm: can 't use `%s' as LPT%d !\n", temp, x);
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else
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if ((LPT[parallel].devicename = malloc(strlen(temp)+1)) == NULL)
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fprintf(stderr,"comm: can't malloc for device info!\n");
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else {
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LPT[parallel].fd = 0;
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strcpy(LPT[parallel].devicename, temp);
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parallel++;
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}
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}
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}
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}
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void Comm_DeInit(void)
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{
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int x;
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for (x=0; x!=MAX_PORTS; x++) {
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if (COM[x].devicename) {
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if (COM[x].fd)
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close(COM[x].fd);
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free(COM[x].devicename);
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}
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if (LPT[x].devicename) {
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if (LPT[x].fd)
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close(LPT[x].fd);
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free(LPT[x].devicename);
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}
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}
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}
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struct DosDeviceStruct *GetDeviceStruct(int fd)
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{
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int x;
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for (x=0; x!=MAX_PORTS; x++) {
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if (COM[x].fd == fd)
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return &COM[x];
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if (LPT[x].fd == fd)
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return &LPT[x];
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}
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return NULL;
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}
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int ValidCOMPort(int x)
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{
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return(x < MAX_PORTS ? (int) COM[x].devicename : 0);
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}
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int ValidLPTPort(int x)
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{
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return(x < MAX_PORTS ? (int) LPT[x].devicename : 0);
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}
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int WinError(void)
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{
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perror("comm");
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switch (errno) {
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default:
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return CE_IOE;
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}
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}
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int BuildCommDCB(LPSTR device, DCB FAR *lpdcb)
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{
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/* "COM1:9600,n,8,1" */
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/* 012345 */
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int port;
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char *ptr, temp[256];
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#ifdef DEBUG_COMM
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fprintf(stderr,"BuildCommDCB: (%s), ptr %d\n", device, (long) lpdcb);
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#endif
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commerror = 0;
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if (!strncasecmp(device,"COM",3)) {
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port = device[3] - '0';
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if (port-- == 0) {
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fprintf(stderr, "comm: BUG ! COM0 can't exists!.\n");
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commerror = IE_BADID;
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}
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if (!ValidCOMPort(port)) {
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commerror = IE_BADID;
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return -1;
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}
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if (!COM[port].fd) {
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OpenComm(device, 0, 0);
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}
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lpdcb->Id = COM[port].fd;
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if (!*(device+4))
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return 0;
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if (*(device+4) != ':')
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return -1;
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strcpy(temp,device+5);
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ptr = strtok(temp, ",");
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fprintf(stderr,"BuildCommDCB: baudrate (%s)\n", ptr);
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lpdcb->BaudRate = atoi(ptr);
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ptr = strtok(NULL, ",");
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if (islower(*ptr))
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*ptr = toupper(*ptr);
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fprintf(stderr,"BuildCommDCB: parity (%c)\n", *ptr);
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switch (*ptr) {
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case 'N':
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lpdcb->Parity = NOPARITY;
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lpdcb->fParity = 0;
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break;
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lpdcb->fParity = 1;
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case 'E':
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lpdcb->Parity = EVENPARITY;
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break;
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case 'M':
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lpdcb->Parity = MARKPARITY;
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break;
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case 'O':
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lpdcb->Parity = ODDPARITY;
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break;
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default:
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fprintf(stderr,"comm: unknown parity `%c'!\n", *ptr);
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return -1;
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}
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ptr = strtok(NULL, ",");
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fprintf(stderr, "BuildCommDCB: charsize (%c)\n", *ptr);
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lpdcb->ByteSize = *ptr - '0';
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ptr = strtok(NULL, ",");
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fprintf(stderr, "BuildCommDCB: stopbits (%c)\n", *ptr);
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switch (*ptr) {
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case '1':
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lpdcb->StopBits = ONESTOPBIT;
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break;
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case '2':
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lpdcb->StopBits = TWOSTOPBITS;
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break;
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default:
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fprintf(stderr,"comm: unknown # of stopbits `%c'!\n", *ptr);
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return -1;
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}
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}
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return 0;
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}
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int OpenComm(LPSTR device, UINT cbInQueue, UINT cbOutQueue)
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{
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int port, fd;
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#ifdef DEBUG_COMM
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fprintf(stderr,"OpenComm: %s, %d, %d\n", device, cbInQueue, cbOutQueue);
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#endif
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commerror = 0;
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if (!strncasecmp(device,"COM",3)) {
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port = device[3] - '0';
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if (port-- == 0) {
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fprintf(stderr, "comm: BUG ! COM0 doesn't exists!.\n");
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commerror = IE_BADID;
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}
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if (!ValidCOMPort(port)) {
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commerror = IE_BADID;
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return -1;
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}
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if (COM[port].fd) {
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return COM[port].fd;
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}
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fd = open(COM[port].devicename, O_RDWR | O_NONBLOCK, 0);
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if (fd == -1) {
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commerror = WinError();
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return -1;
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} else {
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COM[port].fd = fd;
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return fd;
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}
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}
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else
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if (!strncasecmp(device,"LPT",3)) {
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port = device[3] - '0';
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if (!ValidLPTPort(port)) {
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commerror = IE_BADID;
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return -1;
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}
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if (LPT[port].fd) {
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commerror = IE_OPEN;
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return -1;
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}
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fd = open(LPT[port].devicename, O_RDWR | O_NONBLOCK, 0);
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if (fd == -1) {
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commerror = WinError();
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return -1;
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} else {
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LPT[port].fd = fd;
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return fd;
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}
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}
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return 0;
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}
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int CloseComm(int fd)
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{
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#ifdef DEBUG_COMM
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fprintf(stderr,"CloseComm: fd %d\n", fd);
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#endif
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if (close(fd) == -1) {
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commerror = WinError();
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return -1;
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} else {
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commerror = 0;
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return 0;
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}
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}
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int SetCommBreak(int fd)
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{
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struct DosDeviceStruct *ptr;
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#ifdef DEBUG_COMM
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fprintf(stderr,"SetCommBreak: fd: %d\n", fd);
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#endif
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if ((ptr = GetDeviceStruct(fd)) == NULL) {
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commerror = IE_BADID;
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return -1;
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}
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ptr->suspended = 1;
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commerror = 0;
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return 0;
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}
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int ClearCommBreak(int fd)
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{
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struct DosDeviceStruct *ptr;
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#ifdef DEBUG_COMM
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fprintf(stderr,"ClearCommBreak: fd: %d\n", fd);
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#endif
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if ((ptr = GetDeviceStruct(fd)) == NULL) {
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commerror = IE_BADID;
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return -1;
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}
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ptr->suspended = 0;
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commerror = 0;
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return 0;
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}
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LONG EscapeCommFunction(int fd, int nFunction)
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{
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int max;
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struct termios port;
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#ifdef DEBUG_COMM
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fprintf(stderr,"EscapeCommFunction fd: %d, function: %d\n", fd, nFunction);
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#endif
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if (tcgetattr(fd, &port) == -1) {
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commerror = WinError();
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return -1;
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}
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switch (nFunction) {
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case RESETDEV:
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break;
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case GETMAXCOM:
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for (max = 0;COM[max].devicename;max++)
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;
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return max;
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break;
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case GETMAXLPT:
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for (max = 0;LPT[max].devicename;max++)
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;
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return 0x80 + max;
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break;
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case CLRDTR:
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port.c_cflag &= TIOCM_DTR;
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break;
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case CLRRTS:
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port.c_cflag &= TIOCM_RTS;
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break;
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case SETDTR:
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port.c_cflag |= CRTSCTS;
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break;
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case SETRTS:
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port.c_cflag |= CRTSCTS;
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break;
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case SETXOFF:
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port.c_iflag |= IXOFF;
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break;
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case SETXON:
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port.c_iflag |= IXON;
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break;
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default:
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fprintf(stderr,"EscapeCommFunction fd: %d, unknown function: %d\n", fd, nFunction);
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break;
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}
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if (tcsetattr(fd, TCSADRAIN, &port) == -1) {
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commerror = WinError();
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return -1;
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} else {
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commerror = 0;
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return 0;
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}
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}
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int FlushComm(int fd, int fnQueue)
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{
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int queue;
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#ifdef DEBUG_COMM
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fprintf(stderr,"FlushComm fd: %d, queue: %d\n", fd, fnQueue);
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#endif
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switch (fnQueue) {
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case 0:
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queue = TCOFLUSH;
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break;
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case 1:
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queue = TCIFLUSH;
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break;
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default:
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fprintf(stderr,"FlushComm fd: %d, UNKNOWN queue: %d\n", fd, fnQueue);
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return -1;
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}
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if (tcflush(fd, fnQueue)) {
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commerror = WinError();
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return -1;
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} else {
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commerror = 0;
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return 0;
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}
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}
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int GetCommError(int fd, COMSTAT FAR *lpStat)
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{
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#ifdef DEBUG_COMM
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fprintf(stderr,"GetCommError: fd %d (current error %d)\n", fd, commerror);
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#endif
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return(commerror);
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}
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UINT FAR* SetCommEventMask(int fd, UINT fuEvtMask)
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{
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#ifdef DEBUG_COMM
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fprintf(stderr,"SetCommEventMask: fd %d, mask %d\n", fd, fuEvtMask);
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#endif
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eventmask |= fuEvtMask;
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return (UINT *)&eventmask;
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}
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UINT GetCommEventMask(int fd, int fnEvtClear)
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{
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#ifdef DEBUG_COMM
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fprintf(stderr,"GetCommEventMask: fd %d, mask %d\n", fd, fnEvtClear);
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#endif
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eventmask &= ~fnEvtClear;
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return eventmask;
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}
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int SetCommState(DCB FAR *lpdcb)
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{
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struct termios port;
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#ifdef DEBUG_COMM
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fprintf(stderr,"SetCommState: fd %d, ptr %d\n", lpdcb->Id, (long) lpdcb);
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#endif
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if (tcgetattr(lpdcb->Id, &port) == -1) {
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commerror = WinError();
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return -1;
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}
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port.c_cc[VMIN] = 0;
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port.c_cc[VTIME] = 1;
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port.c_iflag &= ~(ISTRIP|BRKINT|IGNCR|ICRNL|INLCR|IMAXBEL);
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port.c_iflag |= (IGNBRK);
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port.c_oflag &= ~(OPOST);
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port.c_cflag &= ~(HUPCL);
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port.c_cflag |= CLOCAL | CREAD;
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port.c_lflag &= ~(ICANON|ECHO|ISIG);
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port.c_lflag |= NOFLSH;
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fprintf(stderr,"SetCommState: baudrate %d\n",lpdcb->BaudRate);
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#ifdef CBAUD
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port.c_cflag &= ~CBAUD;
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switch (lpdcb->BaudRate) {
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case 110:
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case CBR_110:
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port.c_cflag |= B110;
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break;
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case 300:
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case CBR_300:
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port.c_cflag |= B300;
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break;
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case 600:
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case CBR_600:
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port.c_cflag |= B600;
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break;
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case 1200:
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case CBR_1200:
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port.c_cflag |= B1200;
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break;
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case 2400:
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case CBR_2400:
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port.c_cflag |= B2400;
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break;
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case 4800:
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case CBR_4800:
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port.c_cflag |= B4800;
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break;
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case 9600:
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case CBR_9600:
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port.c_cflag |= B9600;
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break;
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case 19200:
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case CBR_19200:
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port.c_cflag |= B19200;
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break;
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case 38400:
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case CBR_38400:
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port.c_cflag |= B38400;
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break;
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default:
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commerror = IE_BAUDRATE;
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return -1;
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}
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#else
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switch (lpdcb->BaudRate) {
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case 110:
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case CBR_110:
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port.c_ospeed = B110;
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break;
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case 300:
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case CBR_300:
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port.c_ospeed = B300;
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break;
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case 600:
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case CBR_600:
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port.c_ospeed = B600;
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break;
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case 1200:
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case CBR_1200:
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port.c_ospeed = B1200;
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break;
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case 2400:
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case CBR_2400:
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port.c_ospeed = B2400;
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break;
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case 4800:
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case CBR_4800:
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port.c_ospeed = B4800;
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break;
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case 9600:
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case CBR_9600:
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port.c_ospeed = B9600;
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break;
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case 19200:
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case CBR_19200:
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port.c_ospeed = B19200;
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break;
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case 38400:
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case CBR_38400:
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port.c_ospeed = B38400;
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break;
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default:
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commerror = IE_BAUDRATE;
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return -1;
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}
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port.c_ispeed = port.c_ospeed;
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#endif
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fprintf(stderr,"SetCommState: bytesize %d\n",lpdcb->ByteSize);
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port.c_cflag &= ~CSIZE;
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switch (lpdcb->ByteSize) {
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case 5:
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port.c_cflag |= CS5;
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break;
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case 6:
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port.c_cflag |= CS6;
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break;
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case 7:
|
|
port.c_cflag |= CS7;
|
|
break;
|
|
case 8:
|
|
port.c_cflag |= CS8;
|
|
break;
|
|
default:
|
|
commerror = IE_BYTESIZE;
|
|
return -1;
|
|
}
|
|
|
|
fprintf(stderr,"SetCommState: parity %d\n",lpdcb->Parity);
|
|
port.c_cflag &= ~(PARENB | PARODD);
|
|
if (lpdcb->fParity)
|
|
switch (lpdcb->Parity) {
|
|
case NOPARITY:
|
|
port.c_iflag &= ~INPCK;
|
|
break;
|
|
case ODDPARITY:
|
|
port.c_cflag |= (PARENB | PARODD);
|
|
port.c_iflag |= INPCK;
|
|
break;
|
|
case EVENPARITY:
|
|
port.c_cflag |= PARENB;
|
|
port.c_iflag |= INPCK;
|
|
break;
|
|
default:
|
|
commerror = IE_BYTESIZE;
|
|
return -1;
|
|
}
|
|
|
|
|
|
fprintf(stderr,"SetCommState: stopbits %d\n",lpdcb->StopBits);
|
|
switch (lpdcb->StopBits) {
|
|
case ONESTOPBIT:
|
|
port.c_cflag &= ~CSTOPB;
|
|
break;
|
|
case TWOSTOPBITS:
|
|
port.c_cflag |= CSTOPB;
|
|
break;
|
|
default:
|
|
commerror = IE_BYTESIZE;
|
|
return -1;
|
|
}
|
|
|
|
if (lpdcb->fDtrflow || lpdcb->fRtsflow || lpdcb->fOutxCtsFlow)
|
|
port.c_cflag |= CRTSCTS;
|
|
|
|
if (lpdcb->fDtrDisable)
|
|
port.c_cflag &= ~CRTSCTS;
|
|
|
|
if (lpdcb->fInX)
|
|
port.c_iflag |= IXON;
|
|
if (lpdcb->fOutX)
|
|
port.c_iflag |= IXOFF;
|
|
|
|
if (tcsetattr(lpdcb->Id, TCSADRAIN, &port) == -1) {
|
|
commerror = WinError();
|
|
return -1;
|
|
} else {
|
|
commerror = 0;
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
int GetCommState(int fd, DCB FAR *lpdcb)
|
|
{
|
|
struct termios port;
|
|
|
|
#ifdef DEBUG_COMM
|
|
fprintf(stderr,"GetCommState: fd %d, ptr %d\n", fd, (long) lpdcb);
|
|
#endif
|
|
|
|
if (tcgetattr(fd, &port) == -1) {
|
|
commerror = WinError();
|
|
return -1;
|
|
}
|
|
|
|
lpdcb->Id = fd;
|
|
|
|
#ifdef CBAUD
|
|
switch (port.c_cflag & CBAUD) {
|
|
#else
|
|
switch (port.c_ospeed) {
|
|
#endif
|
|
case B110:
|
|
lpdcb->BaudRate = 110;
|
|
break;
|
|
case B300:
|
|
lpdcb->BaudRate = 300;
|
|
break;
|
|
case B600:
|
|
lpdcb->BaudRate = 600;
|
|
break;
|
|
case B1200:
|
|
lpdcb->BaudRate = 1200;
|
|
break;
|
|
case B2400:
|
|
lpdcb->BaudRate = 2400;
|
|
break;
|
|
case B4800:
|
|
lpdcb->BaudRate = 4800;
|
|
break;
|
|
case B9600:
|
|
lpdcb->BaudRate = 9600;
|
|
break;
|
|
case B19200:
|
|
lpdcb->BaudRate = 19200;
|
|
break;
|
|
case B38400:
|
|
lpdcb->BaudRate = 38400;
|
|
break;
|
|
}
|
|
|
|
switch (port.c_cflag & CSIZE) {
|
|
case CS5:
|
|
lpdcb->ByteSize = 5;
|
|
break;
|
|
case CS6:
|
|
lpdcb->ByteSize = 6;
|
|
break;
|
|
case CS7:
|
|
lpdcb->ByteSize = 7;
|
|
break;
|
|
case CS8:
|
|
lpdcb->ByteSize = 8;
|
|
break;
|
|
}
|
|
|
|
switch (port.c_cflag & ~(PARENB | PARODD)) {
|
|
case 0:
|
|
lpdcb->fParity = NOPARITY;
|
|
break;
|
|
case PARENB:
|
|
lpdcb->fParity = EVENPARITY;
|
|
break;
|
|
case (PARENB | PARODD):
|
|
lpdcb->fParity = ODDPARITY;
|
|
break;
|
|
}
|
|
|
|
if (port.c_cflag & CSTOPB)
|
|
lpdcb->StopBits = TWOSTOPBITS;
|
|
else
|
|
lpdcb->StopBits = ONESTOPBIT;
|
|
|
|
lpdcb->RlsTimeout = 50;
|
|
lpdcb->CtsTimeout = 50;
|
|
lpdcb->DsrTimeout = 50;
|
|
lpdcb->fNull = 0;
|
|
lpdcb->fChEvt = 0;
|
|
lpdcb->fBinary = 1;
|
|
|
|
lpdcb->fDtrDisable = 0;
|
|
if (port.c_cflag & CRTSCTS) {
|
|
lpdcb->fDtrflow = 1;
|
|
lpdcb->fRtsflow = 1;
|
|
lpdcb->fOutxCtsFlow = 1;
|
|
lpdcb->fOutxDsrFlow = 1;
|
|
} else
|
|
lpdcb->fDtrDisable = 1;
|
|
|
|
if (port.c_iflag & IXON)
|
|
lpdcb->fInX = 1;
|
|
else
|
|
lpdcb->fInX = 0;
|
|
|
|
if (port.c_iflag & IXOFF)
|
|
lpdcb->fOutX = 1;
|
|
else
|
|
lpdcb->fOutX = 0;
|
|
/*
|
|
lpdcb->XonChar =
|
|
lpdcb->XoffChar =
|
|
*/
|
|
lpdcb->XonLim = 10;
|
|
lpdcb->XoffLim = 10;
|
|
|
|
commerror = 0;
|
|
return 0;
|
|
}
|
|
|
|
int TransmitCommChar(int fd, char chTransmit)
|
|
{
|
|
struct DosDeviceStruct *ptr;
|
|
|
|
#ifdef DEBUG_COMM
|
|
fprintf(stderr,"TransmitCommChar: fd %d, data %d \n", fd, chTransmit);
|
|
#endif
|
|
|
|
if ((ptr = GetDeviceStruct(fd)) == NULL) {
|
|
commerror = IE_BADID;
|
|
return -1;
|
|
}
|
|
|
|
if (ptr->suspended) {
|
|
commerror = IE_HARDWARE;
|
|
return -1;
|
|
}
|
|
|
|
if (write(fd, (void *) &chTransmit, 1) == -1) {
|
|
commerror = WinError();
|
|
return -1;
|
|
} else {
|
|
commerror = 0;
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
int UngetCommChar(int fd, char chUnget)
|
|
{
|
|
struct DosDeviceStruct *ptr;
|
|
|
|
#ifdef DEBUG_COMM
|
|
fprintf(stderr,"UngetCommChar: fd %d (char %d)\n", fd, chUnget);
|
|
#endif
|
|
|
|
if ((ptr = GetDeviceStruct(fd)) == NULL) {
|
|
commerror = IE_BADID;
|
|
return -1;
|
|
}
|
|
|
|
if (ptr->suspended) {
|
|
commerror = IE_HARDWARE;
|
|
return -1;
|
|
}
|
|
|
|
ptr->unget = 1;
|
|
ptr->unget_byte = chUnget;
|
|
|
|
commerror = 0;
|
|
return 0;
|
|
}
|
|
|
|
int ReadComm(int fd, LPSTR lpvBuf, int cbRead)
|
|
{
|
|
int status, length;
|
|
struct DosDeviceStruct *ptr;
|
|
|
|
#ifdef DEBUG_COMM
|
|
fprintf(stderr,"ReadComm: fd %d, ptr %d, length %d\n", fd, (long) lpvBuf, cbRead);
|
|
#endif
|
|
|
|
if ((ptr = GetDeviceStruct(fd)) == NULL) {
|
|
commerror = IE_BADID;
|
|
return -1;
|
|
}
|
|
|
|
if (ptr->suspended) {
|
|
commerror = IE_HARDWARE;
|
|
return -1;
|
|
}
|
|
|
|
if (ptr->unget) {
|
|
*lpvBuf = ptr->unget_byte;
|
|
lpvBuf++;
|
|
ptr->unget = 0;
|
|
|
|
length = 1;
|
|
} else
|
|
length = 0;
|
|
|
|
status = read(fd, (void *) lpvBuf, cbRead);
|
|
|
|
if (status == -1) {
|
|
commerror = WinError();
|
|
return -1 - length;
|
|
} else {
|
|
commerror = 0;
|
|
return length + status;
|
|
}
|
|
}
|
|
|
|
int WriteComm(int fd, LPSTR lpvBuf, int cbWrite)
|
|
{
|
|
int x, length;
|
|
struct DosDeviceStruct *ptr;
|
|
|
|
#ifdef DEBUG_COMM
|
|
fprintf(stderr,"WriteComm: fd %d, ptr %d, length %d\n", fd, (long) lpvBuf, cbWrite);
|
|
#endif
|
|
|
|
if ((ptr = GetDeviceStruct(fd)) == NULL) {
|
|
commerror = IE_BADID;
|
|
return -1;
|
|
}
|
|
|
|
if (ptr->suspended) {
|
|
commerror = IE_HARDWARE;
|
|
return -1;
|
|
}
|
|
|
|
#ifdef DEBUG_COMM
|
|
for (x=0; x != cbWrite ; x++)
|
|
fprintf(stderr,"%c", *(lpvBuf + x) );
|
|
#endif
|
|
|
|
length = write(fd, (void *) lpvBuf, cbWrite);
|
|
|
|
if (length == -1) {
|
|
commerror = WinError();
|
|
return -1;
|
|
} else {
|
|
commerror = 0;
|
|
return length;
|
|
}
|
|
}
|