1 files changed, 65 insertions, 0 deletions
diff --git a/i386/i386/io_perm.h b/i386/i386/io_perm.h
new file mode 100644
index 0000000..a68e103
--- /dev/null
+++ b/i386/i386/io_perm.h
@@ -0,0 +1,65 @@
+/* Data types for I/O permission bitmap objects.
+
+   Copyright (C) 2002, 2007 Free Software Foundation, Inc.
+
+   Written by Marcus Brinkmann.  Glued into GNU Mach by Thomas Schwinge.
+
+   This file is part of GNU Mach.
+
+   GNU Mach is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by the
+   Free Software Foundation; either version 2, or (at your option) any later
+   version.
+
+   This program is distributed in the hope that it will be useful, but
+   WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+   or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+   for more details.
+
+   You should have received a copy of the GNU General Public License along
+   with this program; if not, write to the Free Software Foundation, Inc.,
+   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+
+#ifndef _I386_IO_PERM_H_
+#define _I386_IO_PERM_H_
+
+#include <device/dev_hdr.h>
+#include <ipc/ipc_types.h>
+
+
+/* The highest possible I/O port.  */
+#define	IOPB_MAX	0xffff
+
+/* The number of bytes needed to hold all permission bits.  */
+#define	IOPB_BYTES	(((IOPB_MAX + 1) + 7) / 8)
+
+/* An offset that points outside of the permission bitmap, used to
+   disable all permission.  */
+#define IOPB_INVAL	0x2fff
+
+
+/* The type of an I/O port address.  */
+typedef unsigned short io_port_t;
+
+
+struct io_perm
+{
+  /* We use a ``struct device'' for easy management.  */
+  struct device device;
+
+  ipc_port_t port;
+
+  io_port_t from, to;
+};
+
+typedef struct io_perm *io_perm_t;
+
+#define IO_PERM_NULL ((io_perm_t) 0)
+
+extern io_perm_t convert_port_to_io_perm (ipc_port_t);
+extern ipc_port_t convert_io_perm_to_port (io_perm_t);
+#if TODO_REMOVE_ME
+extern void io_perm_deallocate (io_perm_t);
+#endif
+
+#endif