112 lines
4.0 KiB
C
112 lines
4.0 KiB
C
#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.
|
|
*
|
|
* libfdt is dual licensed: you can use it either under the terms of
|
|
* the GPL, or the BSD license, at your option.
|
|
*
|
|
* a) This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License as
|
|
* published by the Free Software Foundation; either version 2 of the
|
|
* License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public
|
|
* License along with this library; if not, write to the Free
|
|
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
|
|
* MA 02110-1301 USA
|
|
*
|
|
* Alternatively,
|
|
*
|
|
* b) Redistribution and use in source and binary forms, with or
|
|
* without modification, are permitted provided that the following
|
|
* conditions are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above
|
|
* copyright notice, this list of conditions and the following
|
|
* disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above
|
|
* copyright notice, this list of conditions and the following
|
|
* disclaimer in the documentation and/or other materials
|
|
* provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
|
|
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
|
|
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
|
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
|
|
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
|
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
|
|
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
|
|
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <stddef.h>
|
|
#include <stdint.h>
|
|
#include <string.h>
|
|
|
|
#ifdef __CHECKER__
|
|
#define __force __attribute__((force))
|
|
#define __bitwise __attribute__((bitwise))
|
|
#else
|
|
#define __force
|
|
#define __bitwise
|
|
#endif
|
|
|
|
typedef uint16_t __bitwise fdt16_t;
|
|
typedef uint32_t __bitwise fdt32_t;
|
|
typedef uint64_t __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 (__force uint16_t)CPU_TO_FDT16(x);
|
|
}
|
|
static inline fdt16_t cpu_to_fdt16(uint16_t x)
|
|
{
|
|
return (__force fdt16_t)CPU_TO_FDT16(x);
|
|
}
|
|
|
|
static inline uint32_t fdt32_to_cpu(fdt32_t x)
|
|
{
|
|
return (__force uint32_t)CPU_TO_FDT32(x);
|
|
}
|
|
static inline fdt32_t cpu_to_fdt32(uint32_t x)
|
|
{
|
|
return (__force fdt32_t)CPU_TO_FDT32(x);
|
|
}
|
|
|
|
static inline uint64_t fdt64_to_cpu(fdt64_t x)
|
|
{
|
|
return (__force uint64_t)CPU_TO_FDT64(x);
|
|
}
|
|
static inline fdt64_t cpu_to_fdt64(uint64_t x)
|
|
{
|
|
return (__force fdt64_t)CPU_TO_FDT64(x);
|
|
}
|
|
#undef CPU_TO_FDT64
|
|
#undef CPU_TO_FDT32
|
|
#undef CPU_TO_FDT16
|
|
#undef EXTRACT_BYTE
|
|
|
|
#endif /* _LIBFDT_ENV_H */
|