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| \/ | \ \ / / | __ \ (_) | | / ____| | | | |
| \ / |_ __\ V / | |__) | __ ___ ____ _| |_ ___ | (___ | |__ ___| | |
| |\/| | '__|> < | ___/ '__| \ \ / / _` | __/ _ \ \___ \| '_ \ / _ \ | |
| | | | |_ / . \ | | | | | |\ V / (_| | || __/ ____) | | | | __/ | |
|_| |_|_(_)_/ \_\ |_| |_| |_| \_/ \__,_|\__\___| |_____/|_| |_|\___V 2.1
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/* SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-2-Clause) */
#ifndef LIBFDT_ENV_H
#define LIBFDT_ENV_H
/*
* libfdt - Flat Device Tree manipulation
* Copyright (C) 2006 David Gibson, IBM Corporation.
* Copyright 2012 Kim Phillips, Freescale Semiconductor.
*/
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <limits.h>
#ifdef __CHECKER__
#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
#ifdef __APPLE__
#include <AvailabilityMacros.h>
/* strnlen() is not available on Mac OS < 10.7 */
# if !defined(MAC_OS_X_VERSION_10_7) || (MAC_OS_X_VERSION_MAX_ALLOWED < \
MAC_OS_X_VERSION_10_7)
#define strnlen fdt_strnlen
/*
* fdt_strnlen: returns the length of a string or max_count - which ever is
* smallest.
* Input 1 string: the string whose size is to be determined
* Input 2 max_count: the maximum value returned by this function
* Output: length of the string or max_count (the smallest of the two)
*/
static inline size_t fdt_strnlen(const char *string, size_t max_count)
{
const char *p = memchr(string, 0, max_count);
return p ? p - string : max_count;
}
#endif /* !defined(MAC_OS_X_VERSION_10_7) || (MAC_OS_X_VERSION_MAX_ALLOWED <
MAC_OS_X_VERSION_10_7) */
#endif /* __APPLE__ */
#endif /* LIBFDT_ENV_H */