A large commit.

[pdp8.git] / sw / dumprest / original / config.c

diff --git a/sw/dumprest/original/config.c b/sw/dumprest/original/config.c
new file mode 100644 (file)
index 0000000..9451972
--- /dev/null
+++ b/sw/dumprest/original/config.c
@@ -0,0 +1,117 @@
+/* Config file format
+   Config file dumprest.cfg or $HOME/.dumprest.cfg
+
+   baud rate
+   0 if 1 stop bit or 1 if two stop bits
+   serial device to use
+
+   example:
+   9600
+   0
+   /dev/ttyS1
+
+   PC example
+   9600
+   0
+   com1
+
+   Or
+   PC example
+   9600
+   0
+   2f8,3
+
+   The 2f8 is base address of port and 3 is the irq
+*/
+
+#ifndef PC
+
+struct {
+   char *baud_str;
+   long bits_per_sec;
+   long baud_val;
+} baud_lookup[] =
+{
+   { "50",50,B50},
+   { "75",75,B75},
+   { "110",110,B110},
+   { "134",134,B134},
+   { "150",150,B150},
+   { "200",200,B200},
+   { "300",300,B300},
+   { "600",600,B600},
+   { "1200",1200,B1200},
+   { "1800",1800,B1800},
+   { "2400",2400,B2400},
+   { "4800",4800,B4800},
+   { "9600",9600,B9600},
+   { "19200",19200,B19200}
+#ifdef B38400
+   ,{ "38400",38400,B38400}
+#endif
+#ifdef B57600
+   ,{ "57600",57600,B57600}
+#endif
+#ifdef B115200
+   ,{ "115200",115200,B115200}
+#endif
+#ifdef B230400
+   ,{ "230400",230400,B230400}
+#endif
+#ifdef B460800
+   ,{ "460800",460800,B460800}
+#endif
+};
+
+#endif
+
+#if defined(_STDC_) || defined(PC)
+void setup_config(long *,int *,char *);
+#endif
+
+void setup_config(baud,two_stop,serial_dev)
+   long *baud;
+   int *two_stop;
+   char *serial_dev;
+{
+   FILE *config;
+   char homeloc[256];
+   char *home;
+#ifndef PC
+   char baud_rate[32];
+   int cntr;
+#endif
+
+   config = fopen("dumprest.cfg","r");
+   if (config == NULL) {
+      home = getenv("HOME");
+      if (home != NULL) {
+         strcpy(homeloc,home);
+         strcat(homeloc,"/");
+         strcat(homeloc,".dumprest.cfg");
+         config = fopen(homeloc,"r");
+      }
+      if (config == NULL) {
+         printf("Unable to open dumprest.cfg or $HOME/.dumprest.cfg\n");
+         exit(1);
+      }
+   }
+#ifdef PC
+   fscanf(config,"%ld",baud);
+#else
+   fscanf(config,"%s",baud_rate);
+   *baud = B0;
+   for (cntr = 0; cntr < ARRAYSIZE(baud_lookup) && *baud == B0; cntr++) {
+      if (strcmp(baud_lookup[cntr].baud_str,baud_rate) == 0) {
+         *baud = baud_lookup[cntr].baud_val;
+      }
+   }
+   if (*baud == B0) {
+      printf("Unknown baud rate %s\n",baud_rate);
+      exit(1);
+   }
+#endif
+   fscanf(config,"%d",two_stop);
+   fscanf(config,"%s",serial_dev);
+   fclose(config);
+}