1 #ifndef _LIBFDT_ENV_H 2 #define _LIBFDT_ENV_H 3 4 #ifdef _KERNEL 5 #include <sys/cdefs.h> 6 #include <sys/param.h> 7 #include <sys/types.h> 8 #include <sys/systm.h> 9 #include <sys/stdint.h> 10 #else 11 #include <stddef.h> 12 #include <stdint.h> 13 #include <string.h> 14 #endif 15 16 #define EXTRACT_BYTE(n) ((unsigned long long)((uint8_t *)&x)[n]) 17 static inline uint16_t fdt16_to_cpu(uint16_t x) 18 { 19 return (EXTRACT_BYTE(0) << 8) | EXTRACT_BYTE(1); 20 } 21 #define cpu_to_fdt16(x) fdt16_to_cpu(x) 22 23 static inline uint32_t fdt32_to_cpu(uint32_t x) 24 { 25 return (EXTRACT_BYTE(0) << 24) | (EXTRACT_BYTE(1) << 16) | (EXTRACT_BYTE(2) << 8) | EXTRACT_BYTE(3); 26 } 27 #define cpu_to_fdt32(x) fdt32_to_cpu(x) 28 29 static inline uint64_t fdt64_to_cpu(uint64_t x) 30 { 31 return (EXTRACT_BYTE(0) << 56) | (EXTRACT_BYTE(1) << 48) | (EXTRACT_BYTE(2) << 40) | (EXTRACT_BYTE(3) << 32) 32 | (EXTRACT_BYTE(4) << 24) | (EXTRACT_BYTE(5) << 16) | (EXTRACT_BYTE(6) << 8) | EXTRACT_BYTE(7); 33 } 34 #define cpu_to_fdt64(x) fdt64_to_cpu(x) 35 #undef EXTRACT_BYTE 36 37 #endif /* _LIBFDT_ENV_H */ 38