sw/dumprest/original/config.c

   1 /* Config file format
   2    Config file dumprest.cfg or $HOME/.dumprest.cfg
   3
   4    baud rate
   5    0 if 1 stop bit or 1 if two stop bits
   6    serial device to use
   7
   8    example:
   9    9600
  10    0
  11    /dev/ttyS1
  12
  13    PC example
  14    9600
  15    0
  16    com1
  17
  18    Or
  19    PC example
  20    9600
  21    0
  22    2f8,3
  23
  24    The 2f8 is base address of port and 3 is the irq
  25 */
  26
  27 #ifndef PC
  28
  29 struct {
  30    char *baud_str;
  31    long bits_per_sec;
  32    long baud_val;
  33 } baud_lookup[] =
  34 {
  35    { "50",50,B50},
  36    { "75",75,B75},
  37    { "110",110,B110},
  38    { "134",134,B134},
  39    { "150",150,B150},
  40    { "200",200,B200},
  41    { "300",300,B300},
  42    { "600",600,B600},
  43    { "1200",1200,B1200},
  44    { "1800",1800,B1800},
  45    { "2400",2400,B2400},
  46    { "4800",4800,B4800},
  47    { "9600",9600,B9600},
  48    { "19200",19200,B19200}
  49 #ifdef B38400
  50    ,{ "38400",38400,B38400}
  51 #endif
  52 #ifdef B57600
  53    ,{ "57600",57600,B57600}
  54 #endif
  55 #ifdef B115200
  56    ,{ "115200",115200,B115200}
  57 #endif
  58 #ifdef B230400
  59    ,{ "230400",230400,B230400}
  60 #endif
  61 #ifdef B460800
  62    ,{ "460800",460800,B460800}
  63 #endif
  64 };
  65
  66 #endif
  67
  68 #if defined(_STDC_) || defined(PC)
  69 void setup_config(long *,int *,char *);
  70 #endif
  71
  72 void setup_config(baud,two_stop,serial_dev)
  73    long *baud;
  74    int *two_stop;
  75    char *serial_dev;
  76 {
  77    FILE *config;
  78    char homeloc[256];
  79    char *home;
  80 #ifndef PC
  81    char baud_rate[32];
  82    int cntr;
  83 #endif
  84
  85    config = fopen("dumprest.cfg","r");
  86    if (config == NULL) {
  87       home = getenv("HOME");
  88       if (home != NULL) {
  89          strcpy(homeloc,home);
  90          strcat(homeloc,"/");
  91          strcat(homeloc,".dumprest.cfg");
  92          config = fopen(homeloc,"r");
  93       }
  94       if (config == NULL) {
  95          printf("Unable to open dumprest.cfg or $HOME/.dumprest.cfg\n");
  96          exit(1);
  97       }
  98    }
  99 #ifdef PC
 100    fscanf(config,"%ld",baud);
 101 #else
 102    fscanf(config,"%s",baud_rate);
 103    *baud = B0;
 104    for (cntr = 0; cntr < ARRAYSIZE(baud_lookup) && *baud == B0; cntr++) {
 105       if (strcmp(baud_lookup[cntr].baud_str,baud_rate) == 0) {
 106          *baud = baud_lookup[cntr].baud_val;
 107       }
 108    }
 109    if (*baud == B0) {
 110       printf("Unknown baud rate %s\n",baud_rate);
 111       exit(1);
 112    }
 113 #endif
 114    fscanf(config,"%d",two_stop);
 115    fscanf(config,"%s",serial_dev);
 116    fclose(config);
 117 }