| /* Copyright (C) 1998, 1999 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| Contributed by Phil Blundell, based on the Alpha version by |
| David Mosberger. |
| |
| The GNU C Library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 of the License, or (at your option) any later version. |
| |
| The GNU C Library 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 |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library; if not, write to the Free |
| Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 02111-1307 USA. */ |
| |
| #include <sys/io.h> |
| #include <errno.h> |
| |
| |
| #define MAX_PORT 0x10000 |
| |
| int iopl(int level) |
| { |
| if (level > 3) { |
| __set_errno(EINVAL); |
| return -1; |
| } |
| if (level) |
| return ioperm(0, MAX_PORT, 1); |
| return 0; |
| } |