1 files changed, 120 insertions, 0 deletions
diff --git a/sys/boot/ofw/libofw/ofw_console.c b/sys/boot/ofw/libofw/ofw_console.c
new file mode 100644
index 000000000000..59ce9a5067d5
--- /dev/null
+++ b/sys/boot/ofw/libofw/ofw_console.c
@@ -0,0 +1,120 @@
+/* $NetBSD: prom.c,v 1.3 1997/09/06 14:03:58 drochner Exp $ */
+
+/*-
+ * Mach Operating System
+ * Copyright (c) 1992 Carnegie Mellon University
+ * All Rights Reserved.
+ * 
+ * Permission to use, copy, modify and distribute this software and its
+ * documentation is hereby granted, provided that both the copyright
+ * notice and this permission notice appear in all copies of the
+ * software, derivative works or modified versions, and any portions
+ * thereof, and that both notices appear in supporting documentation.
+ * 
+ * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
+ * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
+ * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
+ * 
+ * Carnegie Mellon requests users of this software to return to
+ * 
+ *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
+ *  School of Computer Science
+ *  Carnegie Mellon University
+ *  Pittsburgh PA 15213-3890
+ * 
+ * any improvements or extensions that they make and grant Carnegie Mellon
+ * the rights to redistribute these changes.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/types.h>
+
+#include "bootstrap.h"
+#include "openfirm.h"
+
+static void ofw_cons_probe(struct console *cp);
+static int ofw_cons_init(int);
+void ofw_cons_putchar(int);
+int ofw_cons_getchar(void);
+int ofw_cons_poll(void);
+
+static ihandle_t stdin;
+static ihandle_t stdout;
+
+struct console ofwconsole = {
+	"ofw",
+	"Open Firmware console",
+	0,
+	ofw_cons_probe,
+	ofw_cons_init,
+	ofw_cons_putchar,
+	ofw_cons_getchar,
+	ofw_cons_poll,
+};
+
+static void
+ofw_cons_probe(struct console *cp)
+{
+
+	OF_getprop(chosen, "stdin", &stdin, sizeof(stdin));
+	OF_getprop(chosen, "stdout", &stdout, sizeof(stdout));
+	cp->c_flags |= C_PRESENTIN|C_PRESENTOUT;
+}
+
+static int
+ofw_cons_init(int arg)
+{
+	return 0;
+}
+
+void
+ofw_cons_putchar(int c)
+{
+	char cbuf;
+
+	if (c == '\n') {
+		cbuf = '\r';
+		OF_write(stdout, &cbuf, 1);
+	}
+
+	cbuf = c;
+	OF_write(stdout, &cbuf, 1);
+}
+
+static int saved_char = -1;
+
+int
+ofw_cons_getchar()
+{
+	unsigned char ch = '\0';
+	int l;
+
+	if (saved_char != -1) {
+		l = saved_char;
+		saved_char = -1;
+		return l;
+	}
+
+	if (OF_read(stdin, &ch, 1) > 0)
+		return (ch);
+
+	return (-1);
+}
+
+int
+ofw_cons_poll()
+{
+	unsigned char ch;
+
+	if (saved_char != -1)
+		return 1;
+
+	if (OF_read(stdin, &ch, 1) > 0) {
+		saved_char = ch;
+		return 1;
+	}
+
+	return 0;
+}