init gnumach copy

1 files changed, 68 insertions, 0 deletions

diff --git a/device/cons.h b/device/cons.h
new file mode 100644
index 0000000..34f3bc5
--- /dev/null
+++ b/device/cons.h
@@ -0,0 +1,68 @@
+/* 
+ * Copyright (c) 1988-1994, The University of Utah and
+ * the Computer Systems Laboratory at the University of Utah (CSL).
+ * All rights reserved.
+ *
+ * Permission to use, copy, modify and distribute this software is hereby
+ * granted provided that (1) source code retains these copyright, permission,
+ * and disclaimer notices, and (2) redistributions including binaries
+ * reproduce the notices in supporting documentation, and (3) all advertising
+ * materials mentioning features or use of this software display the following
+ * acknowledgement: ``This product includes software developed by the
+ * Computer Systems Laboratory at the University of Utah.''
+ *
+ * THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS
+ * IS" CONDITION.  THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF
+ * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
+ *
+ * CSL requests users of this software to return to csl-dist@cs.utah.edu any
+ * improvements that they make and grant CSL redistribution rights.
+ *
+ *	Utah $Hdr: cons.h 1.10 94/12/14$
+ */
+
+#ifndef _DEVICE_CONS_H
+#define _DEVICE_CONS_H
+#include <sys/types.h>
+
+struct consdev {
+	char	*cn_name;	/* name of device in dev_name_list */
+	int	(*cn_probe)(struct consdev *cp);	/* probe hardware and fill in consdev info */
+	int	(*cn_init)(struct consdev *cp);		/* turn on as console */
+	int	(*cn_getc)(dev_t dev, int wait);	/* kernel getchar interface */
+	int	(*cn_putc)(dev_t dev, int c);		/* kernel putchar interface */
+	dev_t	cn_dev;		/* major/minor of device */
+	short	cn_pri;		/* pecking order; the higher the better */
+};
+
+/* values for cn_pri - reflect our policy for console selection */
+#define	CN_DEAD		0	/* device doesn't exist */
+#define CN_NORMAL	1	/* device exists but is nothing special */
+#define CN_INTERNAL	2	/* "internal" bit-mapped display */
+#define CN_REMOTE	3	/* serial interface with remote bit set */
+
+#define CONSBUFSIZE	1024
+
+#ifdef KERNEL
+extern	struct consdev constab[];
+#endif
+
+extern void cninit(void);
+
+extern int cngetc(void);
+
+extern int cnmaygetc(void);
+
+extern void cnputc(char);
+
+/*
+ * ROM getc/putc primitives.
+ * On some architectures, the boot ROM provides basic character input/output
+ * routines that can be used before devices are configured or virtual memory
+ * is enabled.  This can be useful to debug (or catch panics from) code early
+ * in the bootstrap procedure.
+ */
+extern int	(*romgetc)(char c);
+extern void	(*romputc)(char c);
+
+#endif /* _DEVICE_CONS_H */