+/*
+ * The PCI Library -- System-Dependent Stuff
+ *
+ * Copyright (c) 1997--2004 Martin Mares <mj@ucw.cz>
+ *
+ * Can be freely distributed and used under the terms of the GNU GPL.
+ */
+
+#ifdef __GNUC__
+#define UNUSED __attribute__((unused))
+#define NONRET __attribute__((noreturn))
+#else
+#define UNUSED
+#define NONRET
+#define inline
+#endif
+
+#ifdef PCI_HAVE_LINUX_BYTEORDER_H
+
+#include <asm/byteorder.h>
+#define cpu_to_le16 __cpu_to_le16
+#define cpu_to_le32 __cpu_to_le32
+#define le16_to_cpu __le16_to_cpu
+#define le32_to_cpu __le32_to_cpu
+
+#else
+
+#ifdef PCI_OS_LINUX
+#include <endian.h>
+#define BYTE_ORDER __BYTE_ORDER
+#define BIG_ENDIAN __BIG_ENDIAN
+#endif
+
+#ifdef PCI_OS_SUNOS
+#include <sys/byteorder.h>
+#define BIG_ENDIAN 4321
+#ifdef _LITTLE_ENDIAN
+#define BYTE_ORDER 1234
+#else
+#define BYTE_ORDER 4321
+#endif
+#endif
+
+#ifdef PCI_OS_WINDOWS
+#include <sys/param.h>
+#endif
+
+#if BYTE_ORDER == BIG_ENDIAN
+#define cpu_to_le16 swab16
+#define cpu_to_le32 swab32
+#define le16_to_cpu swab16
+#define le32_to_cpu swab32
+
+static inline word swab16(word w)
+{
+ return (w << 8) | ((w >> 8) & 0xff);
+}
+
+static inline u32 swab32(u32 w)
+{
+ return ((w & 0xff000000) >> 24) |
+ ((w & 0x00ff0000) >> 8) |
+ ((w & 0x0000ff00) << 8) |
+ ((w & 0x000000ff) << 24);
+}
+#else
+#define cpu_to_le16(x) (x)
+#define cpu_to_le32(x) (x)
+#define le16_to_cpu(x) (x)
+#define le32_to_cpu(x) (x)
+#endif
+
+#endif