PERFORCE change 97531 for review

[Kip Macy]

http://perforce.freebsd.org/chv.cgi?CH=97531

Change 97531 by kmacy at kmacy_storage:sun4v_rwbuf on 2006/05/20 19:29:44

	add support for break

Affected files ...

.. //depot/projects/kmacy_sun4v/src/sys/sun4v/sun4v/hvcons.c#2 edit

Differences ...

==== //depot/projects/kmacy_sun4v/src/sys/sun4v/sun4v/hvcons.c#2 (text+ko) ====

@@ -68,6 +68,10 @@
 static struct callout_handle	hvcn_timeouthandle
     = CALLOUT_HANDLE_INITIALIZER(&hvcn_timeouthandle);
 
+#if defined(KDB)
+static int			alt_break_state;
+#endif
+
 static void	hvcn_tty_start(struct tty *);
 static int	hvcn_tty_param(struct tty *, struct termios *);
 static void	hvcn_tty_stop(struct tty *, int);
@@ -113,7 +117,7 @@
 	}
 
 	error = ttyld_open(tp, dev);
-#ifdef SIMULATOR
+#if defined(SIMULATOR) || 1
 	if (error == 0 && setuptimeout) {
 		int polltime;
 
@@ -195,12 +199,16 @@
 	ch = '\0';
 
 	while ((l = hv_cngetchar(&ch)) != H_EOK) {
+#if defined(KDB)
+		if (l == H_BREAK || l ==  H_HUP)
+			kdb_enter("Break sequence on console");
+#endif
 		if (l != -2 && l != 0) {
 			return (-1);
 		}
 	}
 
-#if defined(KDB) && defined(ALT_BREAK_TO_DEBUGGER)
+#if defined(KDB) 
 	if (kdb_alt_break(ch, &alt_break_state))
 		kdb_enter("Break sequence on console");
 #endif
@@ -212,9 +220,14 @@
 hvcncheckc(struct consdev *cp)
 {
 	unsigned char ch;
-	
-	if (hv_cngetchar(&ch) == H_EOK) {
-#if defined(KDB) && defined(ALT_BREAK_TO_DEBUGGER)
+	int l;
+
+	if ((l = hv_cngetchar(&ch)) == H_EOK) {
+#if defined(KDB)
+		if (l == H_BREAK || l ==  H_HUP)
+			kdb_enter("Break sequence on console");
+#endif
+#if defined(KDB) 
 		if (kdb_alt_break(ch, &alt_break_state))
 			kdb_enter("Break sequence on console");
 #endif