Return to sysdep.h CVS log

Up to [ELWIX - Embedded LightWeight unIX -] / embedaddon / pciutils / lib

pciutils

    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: typedef u8 byte;
   19: typedef u16 word;
   20: 
   21: #ifdef PCI_OS_WINDOWS
   22: #define strcasecmp strcmpi
   23: #endif
   24: 
   25: #ifdef PCI_HAVE_LINUX_BYTEORDER_H
   26: 
   27: #include <asm/byteorder.h>
   28: #define cpu_to_le16 __cpu_to_le16
   29: #define cpu_to_le32 __cpu_to_le32
   30: #define le16_to_cpu __le16_to_cpu
   31: #define le32_to_cpu __le32_to_cpu
   32: 
   33: #else
   34: 
   35: #ifdef PCI_OS_LINUX
   36: #include <endian.h>
   37: #define BYTE_ORDER __BYTE_ORDER
   38: #define BIG_ENDIAN __BIG_ENDIAN
   39: #endif
   40: 
   41: #ifdef PCI_OS_SUNOS
   42: #include <sys/byteorder.h>
   43: #define BIG_ENDIAN 4321
   44: #ifdef _LITTLE_ENDIAN
   45: #define BYTE_ORDER 1234
   46: #else
   47: #define BYTE_ORDER 4321
   48: #endif
   49: #endif
   50: 
   51: #ifdef PCI_OS_WINDOWS
   52: #ifdef __MINGW32__
   53:   #include <sys/param.h>
   54: #else
   55:   #include <io.h>
   56:   #define BIG_ENDIAN 4321
   57:   #define LITTLE_ENDIAN	1234
   58:   #define BYTE_ORDER LITTLE_ENDIAN
   59:   #define snprintf _snprintf
   60: #endif
   61: #endif
   62: 
   63: #if BYTE_ORDER == BIG_ENDIAN
   64: #define cpu_to_le16 swab16
   65: #define cpu_to_le32 swab32
   66: #define le16_to_cpu swab16
   67: #define le32_to_cpu swab32
   68: 
   69: static inline word swab16(word w)
   70: {
   71:   return (w << 8) | ((w >> 8) & 0xff);
   72: }
   73: 
   74: static inline u32 swab32(u32 w)
   75: {
   76:   return ((w & 0xff000000) >> 24) |
   77:          ((w & 0x00ff0000) >> 8) |
   78:          ((w & 0x0000ff00) << 8)  |
   79:          ((w & 0x000000ff) << 24);
   80: }
   81: #else
   82: #define cpu_to_le16(x) (x)
   83: #define cpu_to_le32(x) (x)
   84: #define le16_to_cpu(x) (x)
   85: #define le32_to_cpu(x) (x)
   86: #endif
   87: 
   88: #endif