1 files changed, 78 insertions, 0 deletions
diff --git a/sys/boot/i386/libi386/comconsole.c b/sys/boot/i386/libi386/comconsole.c
new file mode 100644
index 0000000..a75f92d
--- /dev/null
+++ b/sys/boot/i386/libi386/comconsole.c
@@ -0,0 +1,78 @@
+/*
+ * Copyright (c) 1998 Michael Smith (msmith@freebsd.org)
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * 	From Id: probe_keyboard.c,v 1.13 1997/06/09 05:10:55 bde Exp
+ *
+ *	$Id$
+ */
+
+#include <stand.h>
+
+#include "bootstrap.h"
+
+/* in comconsole.S */
+extern void	cominit(int s);
+extern void	computc(int c);
+extern int	comgetc(void);
+extern int	comiskey(void);
+
+static void	comc_probe(struct console *cp);
+static int	comc_init(int arg);
+static int	comc_in(void);
+
+struct console comconsole = {
+    "comconsole",
+    "BIOS serial port",
+    0,
+    comc_probe,
+    comc_init,
+    computc,
+    comc_in,
+    comiskey
+};
+
+static void
+comc_probe(struct console *cp)
+{
+    /* XXX check the BIOS equipment list? */
+    cp->c_flags |= (C_PRESENTIN | C_PRESENTOUT);
+}
+
+static int
+comc_init(int arg)
+{
+    /* XXX arg is unit number, should we use variables instead? */
+    cominit(arg);
+    return(0);
+}
+
+static int
+comc_in(void)
+{
+    if (comiskey()) {
+	return(comgetc());
+    } else {
+	return(-1);
+    }
+}