1 #ifndef _LIBFDT_INTERNAL_H
2 #define _LIBFDT_INTERNAL_H
4 * libfdt - Flat Device Tree manipulation
5 * Copyright (C) 2006 David Gibson, IBM Corporation.
7 * libfdt is dual licensed: you can use it either under the terms of
8 * the GPL, or the BSD license, at your option.
10 * a) This library is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License as
12 * published by the Free Software Foundation; either version 2 of the
13 * License, or (at your option) any later version.
15 * This library is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public
21 * License along with this library; if not, write to the Free
22 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
27 * b) Redistribution and use in source and binary forms, with or
28 * without modification, are permitted provided that the following
31 * 1. Redistributions of source code must retain the above
32 * copyright notice, this list of conditions and the following
34 * 2. Redistributions in binary form must reproduce the above
35 * copyright notice, this list of conditions and the following
36 * disclaimer in the documentation and/or other materials
37 * provided with the distribution.
39 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
40 * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
41 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
42 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
43 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
44 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
45 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
46 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
47 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
49 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
50 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
51 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
55 #define FDT_ALIGN(x, a) (((x) + (a) - 1) & ~((a) - 1))
56 #define FDT_TAGALIGN(x) (FDT_ALIGN((x), FDT_TAGSIZE))
58 #define FDT_CHECK_HEADER(fdt) \
61 if ((err = fdt_check_header(fdt)) != 0) \
65 int _fdt_check_node_offset(const void *fdt, int offset);
66 const char *_fdt_find_string(const char *strtab, int tabsize, const char *s);
67 int _fdt_node_end_offset(void *fdt, int nodeoffset);
69 static inline const void *_fdt_offset_ptr(const void *fdt, int offset)
71 return (const char *)fdt + fdt_off_dt_struct(fdt) + offset;
74 static inline void *_fdt_offset_ptr_w(void *fdt, int offset)
76 return (void *)(uintptr_t)_fdt_offset_ptr(fdt, offset);
79 static inline const struct fdt_reserve_entry *_fdt_mem_rsv(const void *fdt, int n)
81 const struct fdt_reserve_entry *rsv_table =
82 (const struct fdt_reserve_entry *)
83 ((const char *)fdt + fdt_off_mem_rsvmap(fdt));
87 static inline struct fdt_reserve_entry *_fdt_mem_rsv_w(void *fdt, int n)
89 return (void *)(uintptr_t)_fdt_mem_rsv(fdt, n);
92 #define FDT_SW_MAGIC (~FDT_MAGIC)
94 #endif /* _LIBFDT_INTERNAL_H */