6581309 inconsistent console behavior when not using the virtual console

6635697 qcn driver should support a polled io mode

1 files changed, 27 insertions, 1 deletions

diff --git a/usr/src/uts/sparc/io/consplat.c b/usr/src/uts/sparc/io/consplat.c
index 5c4bf29453..6ca09e0b3a 100644
--- a/usr/src/uts/sparc/io/consplat.c
+++ b/usr/src/uts/sparc/io/consplat.c
@@ -20,7 +20,7 @@
  */
 
 /*
- * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
+ * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
  * Use is subject to license terms.
  */
 
@@ -243,3 +243,29 @@ plat_tem_get_prom_pos(uint32_t *row, uint32_t *col)
 {
 	prom_get_tem_pos(row, col);
 }
+
+/*
+ * Find the path of the virtual console (if available on the
+ * current architecture).
+ *
+ * Returns: -1 if not found, else actual path length.
+ */
+int
+plat_virtual_console_path(char **bufp)
+{
+	pnode_t		pnode;
+	int		buflen;
+	static char	buf[OBP_MAXPATHLEN];
+
+	pnode = prom_finddevice("/virtual-devices/console");
+
+	if (pnode == OBP_BADNODE)
+		return (-1);
+
+	if ((buflen = prom_phandle_to_path(pnode, buf, sizeof (buf))) < 0)
+		return (-1);
+
+	*bufp = buf;
+
+	return (buflen);
+}