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/*
* The PCI Library -- Access to i386 I/O ports on DJGPP
*
* Copyright (c) 2010, 2017 Rudolf Marek <r.marek@assembler.cz>
*
* Can be freely distributed and used under the terms of the GNU GPL v2+
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include <dos.h>
#include "i386-io-access.h"
static int irq_enabled;
static int
intel_setup_io(struct pci_access *a UNUSED)
{
return 1;
}
static inline void
intel_cleanup_io(struct pci_access *a UNUSED)
{
}
static inline void intel_io_lock(void)
{
asm volatile("" : : : "memory");
irq_enabled = disable();
}
static inline void intel_io_unlock(void)
{
asm volatile("" : : : "memory");
if (irq_enabled) {
enable();
}
}
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