2 * The PCI Library -- System-Dependent Stuff
4 * Copyright (c) 1997--2004 Martin Mares <mj@ucw.cz>
6 * Can be freely distributed and used under the terms of the GNU GPL.
10 #define UNUSED __attribute__((unused))
11 #define NONRET __attribute__((noreturn))
18 #ifdef PCI_HAVE_LINUX_BYTEORDER_H
20 #include <asm/byteorder.h>
21 #define cpu_to_le16 __cpu_to_le16
22 #define cpu_to_le32 __cpu_to_le32
23 #define le16_to_cpu __le16_to_cpu
24 #define le32_to_cpu __le32_to_cpu
30 #define BYTE_ORDER __BYTE_ORDER
31 #define BIG_ENDIAN __BIG_ENDIAN
35 #include <sys/byteorder.h>
36 #define BIG_ENDIAN 4321
38 #define BYTE_ORDER 1234
40 #define BYTE_ORDER 4321
45 #include <sys/param.h>
48 #if BYTE_ORDER == BIG_ENDIAN
49 #define cpu_to_le16 swab16
50 #define cpu_to_le32 swab32
51 #define le16_to_cpu swab16
52 #define le32_to_cpu swab32
54 static inline word swab16(word w)
56 return (w << 8) | ((w >> 8) & 0xff);
59 static inline u32 swab32(u32 w)
61 return ((w & 0xff000000) >> 24) |
62 ((w & 0x00ff0000) >> 8) |
63 ((w & 0x0000ff00) << 8) |
64 ((w & 0x000000ff) << 24);
67 #define cpu_to_le16(x) (x)
68 #define cpu_to_le32(x) (x)
69 #define le16_to_cpu(x) (x)
70 #define le32_to_cpu(x) (x)