projects / thirdparty / pciutils.git / blame
| Commit | Line | Data |
|---|---|---|
| 489233b4 MM |
1 | /* |
| 2 | * The PCI Library -- System-Dependent Stuff | |
| 3 | * | |
| 4 | * Copyright (c) 1997--2004 Martin Mares <mj@ucw.cz> | |
| 5 | * | |
| 6 | * Can be freely distributed and used under the terms of the GNU GPL. | |
| 7 | */ | |
| 8 | ||
| 9 | #ifdef __GNUC__ | |
| 10 | #define UNUSED __attribute__((unused)) | |
| 11 | #define NONRET __attribute__((noreturn)) | |
| 12 | #else | |
| 13 | #define UNUSED | |
| 14 | #define NONRET | |
| 15 | #define inline | |
| 16 | #endif | |
| 17 | ||
| 18 | #ifdef PCI_HAVE_LINUX_BYTEORDER_H | |
| 19 | ||
| 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 | |
| 25 | ||
| 26 | #else | |
| 27 | ||
| 28 | #ifdef PCI_OS_LINUX | |
| 29 | #include <endian.h> | |
| 30 | #define BYTE_ORDER __BYTE_ORDER | |
| 31 | #define BIG_ENDIAN __BIG_ENDIAN | |
| 32 | #endif | |
| 33 | ||
| 34 | #ifdef PCI_OS_SUNOS | |
| 35 | #include <sys/byteorder.h> | |
| 36 | #define BIG_ENDIAN 4321 | |
| 37 | #ifdef _LITTLE_ENDIAN | |
| 38 | #define BYTE_ORDER 1234 | |
| 39 | #else | |
| 40 | #define BYTE_ORDER 4321 | |
| 41 | #endif | |
| 42 | #endif | |
| 43 | ||
| 44 | #ifdef PCI_OS_WINDOWS | |
| 45 | #include <sys/param.h> | |
| 46 | #endif | |
| 47 | ||
| 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 | |
| 53 | ||
| 54 | static inline word swab16(word w) | |
| 55 | { | |
| 56 | return (w << 8) | ((w >> 8) & 0xff); | |
| 57 | } | |
| 58 | ||
| 59 | static inline u32 swab32(u32 w) | |
| 60 | { | |
| 61 | return ((w & 0xff000000) >> 24) | | |
| 62 | ((w & 0x00ff0000) >> 8) | | |
| 63 | ((w & 0x0000ff00) << 8) | | |
| 64 | ((w & 0x000000ff) << 24); | |
| 65 | } | |
| 66 | #else | |
| 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) | |
| 71 | #endif | |
| 72 | ||
| 73 | #endif |