/*
- * $Id: i386-ports.c,v 1.1 1999/01/22 21:05:26 mj Exp $
- *
* The PCI Library -- Direct Configuration access via i386 Ports
*
- * Copyright (c) 1997--1999 Martin Mares <mj@atrey.karlin.mff.cuni.cz>
+ * Copyright (c) 1997--2004 Martin Mares <mj@ucw.cz>
*
* Can be freely distributed and used under the terms of the GNU GPL.
*/
-#include <asm/io.h>
#include <unistd.h>
-#ifdef __GLIBC__
-#include <sys/io.h>
-#endif
-
#include "internal.h"
-static int intel_iopl_set = -1;
-
-static int
-intel_setup_io(void)
-{
- if (intel_iopl_set < 0)
- intel_iopl_set = (iopl(3) < 0) ? 0 : 1;
- return intel_iopl_set;
-}
+#if defined(OS_LINUX)
+#include "i386-io-linux.h"
+#elif defined(OS_GNU)
+#include "i386-io-hurd.h"
+#elif defined(OS_SUNOS)
+#include "i386-io-sunos.h"
+#elif defined(OS_WINDOWS)
+#include "i386-io-windows.h"
+#else
+#error Do not know how to access I/O ports on this OS.
+#endif
static void
conf12_init(struct pci_access *a)
}
static void
-conf12_cleanup(struct pci_access * UNUSED a)
+conf12_cleanup(struct pci_access *a UNUSED)
{
- iopl(3);
- intel_iopl_set = -1;
+ intel_cleanup_io();
}
/*
conf1_read(struct pci_dev *d, int pos, byte *buf, int len)
{
int addr = 0xcfc + (pos&3);
+
+ if (pos >= 256)
+ return 0;
+
outl(0x80000000 | ((d->bus & 0xff) << 16) | (PCI_DEVFN(d->dev, d->func) << 8) | (pos&~3), 0xcf8);
switch (len)
conf1_write(struct pci_dev *d, int pos, byte *buf, int len)
{
int addr = 0xcfc + (pos&3);
+
+ if (pos >= 256)
+ return 0;
+
outl(0x80000000 | ((d->bus & 0xff) << 16) | (PCI_DEVFN(d->dev, d->func) << 8) | (pos&~3), 0xcf8);
switch (len)
{
int addr = 0xc000 | (d->dev << 8) | pos;
+ if (pos >= 256)
+ return 0;
+
if (d->dev >= 16)
/* conf2 supports only 16 devices per bus */
return 0;
{
int addr = 0xc000 | (d->dev << 8) | pos;
+ if (pos >= 256)
+ return 0;
+
if (d->dev >= 16)
d->access->error("conf2_write: only first 16 devices exist.");
outb((d->func << 1) | 0xf0, 0xcf8);