diff options
Diffstat (limited to 'qemu/roms/ipxe/src/include/byteswap.h')
| -rw-r--r-- | qemu/roms/ipxe/src/include/byteswap.h | 185 |
1 files changed, 132 insertions, 53 deletions
diff --git a/qemu/roms/ipxe/src/include/byteswap.h b/qemu/roms/ipxe/src/include/byteswap.h index 466759cf8..d1028c579 100644 --- a/qemu/roms/ipxe/src/include/byteswap.h +++ b/qemu/roms/ipxe/src/include/byteswap.h @@ -1,59 +1,138 @@ -#ifndef ETHERBOOT_BYTESWAP_H -#define ETHERBOOT_BYTESWAP_H - -FILE_LICENCE ( GPL2_OR_LATER ); - -#include "endian.h" -#include "bits/byteswap.h" - -#define __bswap_constant_16(x) \ - ((uint16_t)((((uint16_t)(x) & 0x00ff) << 8) | \ - (((uint16_t)(x) & 0xff00) >> 8))) - -#define __bswap_constant_32(x) \ - ((uint32_t)((((uint32_t)(x) & 0x000000ffU) << 24) | \ - (((uint32_t)(x) & 0x0000ff00U) << 8) | \ - (((uint32_t)(x) & 0x00ff0000U) >> 8) | \ - (((uint32_t)(x) & 0xff000000U) >> 24))) - -#define __bswap_constant_64(x) \ - ((uint64_t)((((uint64_t)(x) & 0x00000000000000ffULL) << 56) | \ - (((uint64_t)(x) & 0x000000000000ff00ULL) << 40) | \ - (((uint64_t)(x) & 0x0000000000ff0000ULL) << 24) | \ - (((uint64_t)(x) & 0x00000000ff000000ULL) << 8) | \ - (((uint64_t)(x) & 0x000000ff00000000ULL) >> 8) | \ - (((uint64_t)(x) & 0x0000ff0000000000ULL) >> 24) | \ - (((uint64_t)(x) & 0x00ff000000000000ULL) >> 40) | \ - (((uint64_t)(x) & 0xff00000000000000ULL) >> 56))) - -#define __bswap_16(x) \ - ((uint16_t)(__builtin_constant_p(x) ? \ - __bswap_constant_16(x) : \ - __bswap_variable_16(x))) - -#define __bswap_32(x) \ - ((uint32_t)(__builtin_constant_p(x) ? \ - __bswap_constant_32(x) : \ - __bswap_variable_32(x))) - -#define __bswap_64(x) \ - ((uint64_t)(__builtin_constant_p(x) ? \ - __bswap_constant_64(x) : \ - __bswap_variable_64(x))) +#ifndef BYTESWAP_H +#define BYTESWAP_H + +FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); + +#include <stdint.h> +#include <endian.h> +#include <bits/byteswap.h> + +/** + * Byte-swap a 16-bit constant + * + * @v value Constant value + * @ret swapped Byte-swapped value + */ +#define __bswap_constant_16( value ) \ + ( ( ( (value) & 0x00ff ) << 8 ) | \ + ( ( (value) & 0xff00 ) >> 8 ) ) + +/** + * Byte-swap a 32-bit constant + * + * @v value Constant value + * @ret swapped Byte-swapped value + */ +#define __bswap_constant_32( value ) \ + ( ( ( (value) & 0x000000ffUL ) << 24 ) | \ + ( ( (value) & 0x0000ff00UL ) << 8 ) | \ + ( ( (value) & 0x00ff0000UL ) >> 8 ) | \ + ( ( (value) & 0xff000000UL ) >> 24 ) ) + +/** + * Byte-swap a 64-bit constant + * + * @v value Constant value + * @ret swapped Byte-swapped value + */ +#define __bswap_constant_64( value ) \ + ( ( ( (value) & 0x00000000000000ffULL ) << 56 ) | \ + ( ( (value) & 0x000000000000ff00ULL ) << 40 ) | \ + ( ( (value) & 0x0000000000ff0000ULL ) << 24 ) | \ + ( ( (value) & 0x00000000ff000000ULL ) << 8 ) | \ + ( ( (value) & 0x000000ff00000000ULL ) >> 8 ) | \ + ( ( (value) & 0x0000ff0000000000ULL ) >> 24 ) | \ + ( ( (value) & 0x00ff000000000000ULL ) >> 40 ) | \ + ( ( (value) & 0xff00000000000000ULL ) >> 56 ) ) + +/** + * Byte-swap a 16-bit value + * + * @v value Value + * @ret swapped Byte-swapped value + */ +#define __bswap_16( value ) \ + ( __builtin_constant_p (value) ? \ + ( ( uint16_t ) __bswap_constant_16 ( ( uint16_t ) (value) ) ) \ + : __bswap_variable_16 (value) ) +#define bswap_16( value ) __bswap_16 (value) + +/** + * Byte-swap a 32-bit value + * + * @v value Value + * @ret swapped Byte-swapped value + */ +#define __bswap_32( value ) \ + ( __builtin_constant_p (value) ? \ + ( ( uint32_t ) __bswap_constant_32 ( ( uint32_t ) (value) ) ) \ + : __bswap_variable_32 (value) ) +#define bswap_32( value ) __bswap_32 (value) + +/** + * Byte-swap a 64-bit value + * + * @v value Value + * @ret swapped Byte-swapped value + */ +#define __bswap_64( value ) \ + ( __builtin_constant_p (value) ? \ + ( ( uint64_t ) __bswap_constant_64 ( ( uint64_t ) (value) ) ) \ + : __bswap_variable_64 (value) ) +#define bswap_64( value ) __bswap_64 (value) #if __BYTE_ORDER == __LITTLE_ENDIAN -#include "little_bswap.h" +#define __cpu_to_leNN( bits, value ) (value) +#define __cpu_to_beNN( bits, value ) __bswap_ ## bits (value) +#define __leNN_to_cpu( bits, value ) (value) +#define __beNN_to_cpu( bits, value ) __bswap_ ## bits (value) +#define __cpu_to_leNNs( bits, ptr ) do { } while ( 0 ) +#define __cpu_to_beNNs( bits, ptr ) __bswap_ ## bits ## s (ptr) +#define __leNN_to_cpus( bits, ptr ) do { } while ( 0 ) +#define __beNN_to_cpus( bits, ptr ) __bswap_ ## bits ## s (ptr) #endif + #if __BYTE_ORDER == __BIG_ENDIAN -#include "big_bswap.h" +#define __cpu_to_leNN( bits, value ) __bswap_ ## bits (value) +#define __cpu_to_beNN( bits, value ) (value) +#define __leNN_to_cpu( bits, value ) __bswap_ ## bits (value) +#define __beNN_to_cpu( bits, value ) (value) +#define __cpu_to_leNNs( bits, ptr ) __bswap_ ## bits ## s (ptr) +#define __cpu_to_beNNs( bits, ptr ) do { } while ( 0 ) +#define __leNN_to_cpus( bits, ptr ) __bswap_ ## bits ## s (ptr) +#define __beNN_to_cpus( bits, ptr ) do { } while ( 0 ) #endif -/* Make routines available to all */ -#define swap64(x) __bswap_64(x) -#define swap32(x) __bswap_32(x) -#define swap16(x) __bswap_16(x) -#define bswap_64(x) __bswap_64(x) -#define bswap_32(x) __bswap_32(x) -#define bswap_16(x) __bswap_16(x) - -#endif /* ETHERBOOT_BYTESWAP_H */ +#define cpu_to_le16( value ) __cpu_to_leNN ( 16, value ) +#define cpu_to_le32( value ) __cpu_to_leNN ( 32, value ) +#define cpu_to_le64( value ) __cpu_to_leNN ( 64, value ) +#define cpu_to_be16( value ) __cpu_to_beNN ( 16, value ) +#define cpu_to_be32( value ) __cpu_to_beNN ( 32, value ) +#define cpu_to_be64( value ) __cpu_to_beNN ( 64, value ) +#define le16_to_cpu( value ) __leNN_to_cpu ( 16, value ) +#define le32_to_cpu( value ) __leNN_to_cpu ( 32, value ) +#define le64_to_cpu( value ) __leNN_to_cpu ( 64, value ) +#define be16_to_cpu( value ) __beNN_to_cpu ( 16, value ) +#define be32_to_cpu( value ) __beNN_to_cpu ( 32, value ) +#define be64_to_cpu( value ) __beNN_to_cpu ( 64, value ) +#define cpu_to_le16s( ptr ) __cpu_to_leNNs ( 16, ptr ) +#define cpu_to_le32s( ptr ) __cpu_to_leNNs ( 32, ptr ) +#define cpu_to_le64s( ptr ) __cpu_to_leNNs ( 64, ptr ) +#define cpu_to_be16s( ptr ) __cpu_to_beNNs ( 16, ptr ) +#define cpu_to_be32s( ptr ) __cpu_to_beNNs ( 32, ptr ) +#define cpu_to_be64s( ptr ) __cpu_to_beNNs ( 64, ptr ) +#define le16_to_cpus( ptr ) __leNN_to_cpus ( 16, ptr ) +#define le32_to_cpus( ptr ) __leNN_to_cpus ( 32, ptr ) +#define le64_to_cpus( ptr ) __leNN_to_cpus ( 64, ptr ) +#define be16_to_cpus( ptr ) __beNN_to_cpus ( 16, ptr ) +#define be32_to_cpus( ptr ) __beNN_to_cpus ( 32, ptr ) +#define be64_to_cpus( ptr ) __beNN_to_cpus ( 64, ptr ) + +#define htonll( value ) cpu_to_be64 (value) +#define ntohll( value ) be64_to_cpu (value) +#define htonl( value ) cpu_to_be32 (value) +#define ntohl( value ) be32_to_cpu (value) +#define htons( value ) cpu_to_be16 (value) +#define ntohs( value ) be16_to_cpu (value) + +#endif /* BYTESWAP_H */ |