1 /* 2 * The PCI Library -- Access to i386 I/O ports under Windows with CYGWIN 3 * 4 * Copyright (c) 1997--2006 Martin Mares <[email protected]> 5 * 6 * Can be freely distributed and used under the terms of the GNU GPL v2+ 7 * 8 * SPDX-License-Identifier: GPL-2.0-or-later 9 */ 10 11 #include <sys/io.h> 12 13 #include "i386-io-access.h" 14 15 static int intel_setup_io(struct pci_access * a UNUSED)16intel_setup_io(struct pci_access *a UNUSED) 17 { 18 return (iopl(3) < 0) ? 0 : 1; 19 } 20 21 static inline void intel_cleanup_io(struct pci_access * a UNUSED)22intel_cleanup_io(struct pci_access *a UNUSED) 23 { 24 iopl(0); 25 } 26 intel_io_lock(void)27static inline void intel_io_lock(void) 28 { 29 } 30 intel_io_unlock(void)31static inline void intel_io_unlock(void) 32 { 33 } 34