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/* -------------------------------------------
Copyright (C) 2024, Amlal El Mahrouss, licensed under Apache 2.0.
------------------------------------------- */
#ifndef __NB_FDT_H__
#define __NB_FDT_H__
#include <lib/boot.h>
#ifdef __USE_SPARSE__
#define FDT_FORCE __attribute__((force))
#define FDT_BITWISE __attribute__((bitwise))
#else
#define FDT_FORCE
#define FDT_BITWISE
#endif
typedef uint16_t FDT_BITWISE fdt16_t;
typedef uint32_t FDT_BITWISE fdt32_t;
typedef uint64_t FDT_BITWISE fdt64_t;
#define EXTRACT_BYTE(x, n) ((unsigned long long) ((uint8_t*) &x)[n])
#define CPU_TO_FDT16(x) ((EXTRACT_BYTE(x, 0) << 8) | EXTRACT_BYTE(x, 1))
#define CPU_TO_FDT32(x) \
((EXTRACT_BYTE(x, 0) << 24) | (EXTRACT_BYTE(x, 1) << 16) | (EXTRACT_BYTE(x, 2) << 8) | \
EXTRACT_BYTE(x, 3))
#define CPU_TO_FDT64(x) \
((EXTRACT_BYTE(x, 0) << 56) | (EXTRACT_BYTE(x, 1) << 48) | (EXTRACT_BYTE(x, 2) << 40) | \
(EXTRACT_BYTE(x, 3) << 32) | (EXTRACT_BYTE(x, 4) << 24) | (EXTRACT_BYTE(x, 5) << 16) | \
(EXTRACT_BYTE(x, 6) << 8) | EXTRACT_BYTE(x, 7))
static inline uint16_t fdt16_to_cpu(fdt16_t x) {
return (FDT_FORCE uint16_t) CPU_TO_FDT16(x);
}
static inline fdt16_t cpu_to_fdt16(uint16_t x) {
return (FDT_FORCE fdt16_t) CPU_TO_FDT16(x);
}
static inline uint32_t fdt32_to_cpu(fdt32_t x) {
return (FDT_FORCE uint32_t) CPU_TO_FDT32(x);
}
static inline fdt32_t cpu_to_fdt32(uint32_t x) {
return (FDT_FORCE fdt32_t) CPU_TO_FDT32(x);
}
static inline uint64_t fdt64_to_cpu(fdt64_t x) {
return (FDT_FORCE uint64_t) CPU_TO_FDT64(x);
}
static inline fdt64_t cpu_to_fdt64(uint64_t x) {
return (FDT_FORCE fdt64_t) CPU_TO_FDT64(x);
}
#undef CPU_TO_FDT64
#undef CPU_TO_FDT32
#undef CPU_TO_FDT16
#undef EXTRACT_BYTE
#endif //!__NB_FDT_H__
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