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/*
* The PCI Library -- Access to i386 I/O ports on OpenBSD
*
* Copyright (c) 2023 Grant Pannell <grant@pannell.net.au>
*
* Can be freely distributed and used under the terms of the GNU GPL.
*/
#include <sys/types.h>
#include <machine/sysarch.h>
#include <machine/pio.h>
#include "i386-io-access.h"
#if defined(__amd64__)
#define obsd_iopl amd64_iopl
#else
#define obsd_iopl i386_iopl
#endif
static int iopl_enabled;
static int
intel_setup_io(struct pci_access *a UNUSED)
{
if (iopl_enabled)
return 1;
if (obsd_iopl(3) < 0)
{
return 0;
}
iopl_enabled = 1;
return 1;
}
static inline void
intel_cleanup_io(struct pci_access *a UNUSED)
{
if (iopl_enabled)
{
obsd_iopl(0);
iopl_enabled = 0;
}
}
static inline void intel_io_lock(void)
{
}
static inline void intel_io_unlock(void)
{
}
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