Module Name:    src
Committed By:   christos
Date:           Mon Nov  2 17:45:13 UTC 2015

Modified Files:
        src/sys/dev/ic: com.c

Log Message:
PR/50395: Vicente Chaves de Melo: Loss of characters in serial port
communication between gdb and kgdb_stub: switch to line break interrupt
both when entering KGDB and also on shutdown so we can re-enter the debugger
with BREAK.


To generate a diff of this commit:
cvs rdiff -u -r1.336 -r1.337 src/sys/dev/ic/com.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

Modified files:

Index: src/sys/dev/ic/com.c
diff -u src/sys/dev/ic/com.c:1.336 src/sys/dev/ic/com.c:1.337
--- src/sys/dev/ic/com.c:1.336	Mon May  4 18:59:36 2015
+++ src/sys/dev/ic/com.c	Mon Nov  2 12:45:13 2015
@@ -1,4 +1,4 @@
-/* $NetBSD: com.c,v 1.336 2015/05/04 22:59:36 jmcneill Exp $ */
+/* $NetBSD: com.c,v 1.337 2015/11/02 17:45:13 christos Exp $ */
 
 /*-
  * Copyright (c) 1998, 1999, 2004, 2008 The NetBSD Foundation, Inc.
@@ -66,7 +66,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: com.c,v 1.336 2015/05/04 22:59:36 jmcneill Exp $");
+__KERNEL_RCSID(0, "$NetBSD: com.c,v 1.337 2015/11/02 17:45:13 christos Exp $");
 
 #include "opt_com.h"
 #include "opt_ddb.h"
@@ -377,7 +377,7 @@ com_enable_debugport(struct com_softc *s
 {
 
 	/* Turn on line break interrupt, set carrier. */
-	sc->sc_ier = IER_ERXRDY;
+	sc->sc_ier = IER_ERLS;
 	if (sc->sc_type == COM_TYPE_PXA2x0)
 		sc->sc_ier |= IER_EUART | IER_ERXTOUT;
 	if (sc->sc_type == COM_TYPE_INGENIC ||
@@ -812,7 +812,7 @@ com_shutdown(struct com_softc *sc)
 
 	/* Turn off interrupts. */
 	if (ISSET(sc->sc_hwflags, COM_HW_CONSOLE)) {
-		sc->sc_ier = IER_ERXRDY; /* interrupt on break */
+		sc->sc_ier = IER_ERLS; /* interrupt on line break */
 		if ((sc->sc_type == COM_TYPE_PXA2x0) ||
 		    (sc->sc_type == COM_TYPE_INGENIC) ||
 		    (sc->sc_type == COM_TYPE_TEGRA))

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