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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-15 18:19:39 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-15 18:19:39 +0000 |
commit | b3099b4a9cd903bc2c0088e84a4e97d7cc072f1d (patch) | |
tree | 4de44db30324d1793a5b7ed6fdf32113fe7135ce /types.h | |
parent | Initial commit. (diff) | |
download | dmidecode-b3099b4a9cd903bc2c0088e84a4e97d7cc072f1d.tar.xz dmidecode-b3099b4a9cd903bc2c0088e84a4e97d7cc072f1d.zip |
Adding upstream version 3.5.upstream/3.5upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'types.h')
-rw-r--r-- | types.h | 59 |
1 files changed, 59 insertions, 0 deletions
@@ -0,0 +1,59 @@ +#ifndef TYPES_H +#define TYPES_H + +#include "config.h" + +typedef unsigned char u8; +typedef unsigned short u16; +typedef signed short i16; +typedef unsigned int u32; + +/* + * You may use the following defines to adjust the type definitions + * depending on the architecture: + * - Define BIGENDIAN on big-endian systems. + * - Define ALIGNMENT_WORKAROUND if your system doesn't support + * non-aligned memory access. In this case, we use a slower, but safer, + * memory access method. This should be done automatically in config.h + * for architectures which need it. + */ + +#ifdef BIGENDIAN +typedef struct { + u32 h; + u32 l; +} u64; +#else +typedef struct { + u32 l; + u32 h; +} u64; +#endif + +#if defined(ALIGNMENT_WORKAROUND) || defined(BIGENDIAN) +static inline u64 U64(u32 low, u32 high) +{ + u64 self; + + self.l = low; + self.h = high; + + return self; +} +#endif + +/* + * Per SMBIOS v2.8.0 and later, all structures assume a little-endian + * ordering convention. + */ +#if defined(ALIGNMENT_WORKAROUND) || defined(BIGENDIAN) +#define WORD(x) (u16)((x)[0] + ((x)[1] << 8)) +#define DWORD(x) (u32)((x)[0] + ((x)[1] << 8) + ((x)[2] << 16) + ((x)[3] << 24)) +#define QWORD(x) (U64(DWORD(x), DWORD(x + 4))) +#else /* ALIGNMENT_WORKAROUND || BIGENDIAN */ +#define WORD(x) (u16)(*(const u16 *)(x)) +#define DWORD(x) (u32)(*(const u32 *)(x)) +#define QWORD(x) (*(const u64 *)(x)) +#endif /* ALIGNMENT_WORKAROUND || BIGENDIAN */ + +#endif |