diff options
Diffstat (limited to 'lib/sysdep.h')
-rw-r--r-- | lib/sysdep.h | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/lib/sysdep.h b/lib/sysdep.h new file mode 100644 index 0000000..bdeb34a --- /dev/null +++ b/lib/sysdep.h @@ -0,0 +1,116 @@ +/* + * The PCI Library -- System-Dependent Stuff + * + * Copyright (c) 1997--2020 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)) +#define FORMAT_CHECK(x,y,z) __attribute__((format(x,y,z))) +#else +#define UNUSED +#define NONRET +#define FORMAT_CHECK(x,y,z) +#define inline +#endif + +typedef u8 byte; +typedef u16 word; + +#ifdef PCI_OS_WINDOWS +#define strcasecmp _strcmpi +#define strncasecmp _strnicmp +#if defined(_MSC_VER) && _MSC_VER < 1900 +#define snprintf _snprintf +#define vsnprintf _vsnprintf +#endif +#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> +#if defined(__i386) && defined(LITTLE_ENDIAN) +# define BYTE_ORDER LITTLE_ENDIAN +#elif defined(__sparc) && defined(BIG_ENDIAN) +# define BYTE_ORDER BIG_ENDIAN +#else +#define BIG_ENDIAN 4321 +#endif +#ifndef BYTE_ORDER +#ifdef _LITTLE_ENDIAN +#define BYTE_ORDER 1234 +#else +#define BYTE_ORDER 4321 +#endif +#endif /* BYTE_ORDER */ +#endif /* PCI_OS_SUNOS */ + +#ifdef PCI_OS_WINDOWS +#ifdef __MINGW32__ + #include <sys/param.h> +#else + #include <io.h> + #define BIG_ENDIAN 4321 + #define LITTLE_ENDIAN 1234 + #define BYTE_ORDER LITTLE_ENDIAN +#endif +#endif + +#ifdef PCI_OS_SYLIXOS +#include <endian.h> +#endif + +#ifdef PCI_OS_DJGPP + #define BIG_ENDIAN 4321 + #define LITTLE_ENDIAN 1234 + #define BYTE_ORDER LITTLE_ENDIAN +#endif + +#if !defined(BYTE_ORDER) +#error "BYTE_ORDER not defined for your platform" +#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 |