- adapterized and made spec %%debug ready or added using %%rpm*flags macros

[packages/clock.git] / clock-fix2.patch

--- clock-1.1/clock-alpha.c.fix2	Tue Oct 13 15:08:19 1998
+++ clock-1.1/clock-alpha.c	Tue Oct 13 15:13:47 1998
@@ -173,7 +173,8 @@
 int universal = 0;
 int debug = 0;
 int arcit = 0;
-int bcdit = 0;
+int srmit = 0;
+int funky_toy = 0;
 int clockport = 0x70;
 const char *pgm_name;
 
@@ -185,14 +186,17 @@
 usage ()
 {
   fprintf (stderr, 
-    "usage: %s [-u] -r|w|s|a|v\n"
+    "usage: %s [-r|w|s|a|u|A|S|J|F|D|v]\n"
     "  r: read and print CMOS clock\n"
     "  w: write CMOS clock from system time\n"
     "  s: set system time from CMOS clock\n"
     "  a: get system time and adjust CMOS clock\n"
     "  u: CMOS clock is in universal time\n"
     "  A: CMOS clock is in Alpha ARC console time\n"
+    "  S: CMOS clock is in Alpha SRM console time\n"
     "  J: we are running on an Alpha Jensen\n"
+    "  F: we are running on an Alpha with funky TOY\n"
+    "  D: enable debug printouts\n"
     "  v: print version (" VERSION ") and exit\n", pgm_name
   );
   exit (1);
@@ -229,6 +233,33 @@
   exit(1);
 }
 
+static int
+is_in_cpuinfo(char *fmt, char *str)
+{
+    FILE *cpuinfo;
+    char field[256];
+    char format[256];
+    int found = 0;
+
+    sprintf(format, "%s : %s", fmt, "%255s");
+
+    if (cpuinfo = fopen ("/proc/cpuinfo", "r"))
+      {
+	while (!feof(cpuinfo))
+	  {
+	    if (fscanf (cpuinfo, format, field) == 1)
+	      {
+		if (strncmp(field, str, strlen(str)) == 0)
+		  found = 1;;
+		break;
+	      }
+	    fgets (field, 256, cpuinfo);
+	  }
+	fclose(cpuinfo);
+      }
+    return found;
+}
+
 #elif __i386__
 
 static unsigned long
@@ -306,7 +337,7 @@
   if (arcit) /* Alpha ARC console */
       tm->tm_year -= 80;
   
-  if (!(cmos_read (11) & 0x04) || bcdit) {
+  if (!(cmos_read (11) & 0x04)) {
 #if 0
       printf("writing CMOS time in BCD format!\n");
 #endif
@@ -360,7 +391,7 @@
   int adjustment = 0;
 
   pgm_name = argv[0];
-  while ((arg = getopt (argc, argv, "rwsuaAJDv")) != -1)
+  while ((arg = getopt (argc, argv, "rwsuaAJFSDv")) != -1)
     {
       switch (arg)
 	{
@@ -385,6 +416,12 @@
 	case 'J':
 	  clockport = 0x170;
 	  break;
+	case 'F':
+	  funky_toy = 1;
+	  break;
+	case 'S':
+	  srmit = 1;
+	  break;
         case 'D':
 	  debug = 1;
 	  break;
@@ -405,25 +442,47 @@
 #ifdef __alpha__
   /* See whether we're dealing with a Jensen---it has a weird I/O
      system.  DEC was just learning how to build Alpha PCs.  */
-  if (clockport != 0x170) {
-    FILE *cpuinfo;
-    char field[256];
+  if ((clockport != 0x170) && is_in_cpuinfo("system type", "Jensen")) {
+    clockport = 0x170;
+    if (debug) printf ("clockport adjusted to 0x%x\n", clockport);
+  }
 
-    if (cpuinfo = fopen ("/proc/cpuinfo", "r"))
-      {
-	while (!feof(cpuinfo))
-	  {
-	    if (fscanf (cpuinfo,"system type : %255s", field) == 1)
-	      {
-		if (strcmp(field, "Jensen") == 0)
-		  clockport = 0x170;
-		break;
-	      }
-	    fgets (field, 256, cpuinfo);
-	  }
-	fclose(cpuinfo);
-      }
+  /* see whether we are dealing with PC164/LX164/SX164, as they have a TOY
+     that must be accessed differently to work correctly. */
+  if (!funky_toy) {
+    if (is_in_cpuinfo("system variation", "PC164") ||
+	is_in_cpuinfo("system variation", "LX164") ||
+	is_in_cpuinfo("system variation", "SX164")) {
+      funky_toy = 1;
+      if (debug) printf ("funky TOY!\n");
+    }
+  }
+
+  /* see whether we are dealing with SRM or MILO, as they have
+     different "epoch" ideas. */
+  if (!arcit) {
+    if (is_in_cpuinfo("system serial number", "MILO")) {
+      arcit = 1;
+      if (debug) printf ("booted from MILO\n");
+    }
+  }
+
+  /* see whether we are dealing with a RUFFIAN aka UX, as they have
+     REALLY different TOY format: BCD, and not an ARC-style epoch.
+     BCD is detected dynamically, but we must NOT adjust like ARC. */
+  if (arcit && is_in_cpuinfo("system type", "Ruffian")) {
+    arcit = 0;
+    if (debug) printf ("Ruffian BCD clock\n");
   }
+
+  /* if we are forcing SRM, clear the ARC flag, since that may be set
+     dynamically. this allows handling of SRM->MILO->kernel booting,
+     though not automatically... ;-} */
+  if (arcit && srmit) {
+    arcit = 0;
+    if (debug) printf ("forcing to SRM\n");
+  }
+
 #endif
 
   cmos_init ();
@@ -442,7 +501,8 @@
 	  exit (2);
 	}
       fclose (adj);
-      if (debug) printf ("Last adjustment done at %d seconds after 1/1/1970\n", last_time);
+      if (debug) printf ("Last adjustment done at %d seconds after 1/1/1970\n",
+			 last_time);
     }
 
   if (readit || setit || adjustit)
@@ -452,19 +512,17 @@
 /* read RTC exactly on falling edge of update flag */
 /* Wait for rise.... (may take upto 1 second) */
 
-      for (i = 0; i < 10000000; i++)	
-#ifdef __alpha__
-	  if (cmos_read (12) & 0x10)
-#else /* __alpha__ */
-	      if (cmos_read (10) & 0x80)
-#endif /* __alpha__ */
-	  break;
-
 /* Wait for fall.... (must try at least 2.228 ms) */
 
-      for (i = 0; i < 1000000; i++)	
-	if (!(cmos_read (10) & 0x80))
-	  break;
+      for (i = 0; i < 1000000; i++) {
+	  if (funky_toy) {
+	      if (cmos_read (12) & 0x10)
+		  break;
+	  } else {
+	      if (!(cmos_read (10) & 0x80))
+		  break;
+	  }
+      }
 
 /* The purpose of the "do" loop is called "low-risk programming" */
 /* In theory it should never run more than once */
@@ -480,7 +538,7 @@
 	}
       while (tm.tm_sec != cmos_read (0));
 
-      if (!(cmos_read (11) & 0x04) || bcdit) {
+      if (!(cmos_read (11) & 0x04)) {
 #if 0
 	  printf("reading CMOS time in BCD format!\n");
 #endif