blob: 381133ba81df7d02c375d7a1462d650136abd6d1
1 | #ifndef _LIBFDT_INTERNAL_H |
2 | #define _LIBFDT_INTERNAL_H |
3 | /* |
4 | * libfdt - Flat Device Tree manipulation |
5 | * Copyright (C) 2006 David Gibson, IBM Corporation. |
6 | * |
7 | * libfdt is dual licensed: you can use it either under the terms of |
8 | * the GPL, or the BSD license, at your option. |
9 | * |
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. |
14 | * |
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. |
19 | * |
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, |
23 | * MA 02110-1301 USA |
24 | * |
25 | * Alternatively, |
26 | * |
27 | * b) Redistribution and use in source and binary forms, with or |
28 | * without modification, are permitted provided that the following |
29 | * conditions are met: |
30 | * |
31 | * 1. Redistributions of source code must retain the above |
32 | * copyright notice, this list of conditions and the following |
33 | * disclaimer. |
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. |
38 | * |
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. |
52 | */ |
53 | #include <fdt.h> |
54 | |
55 | #define FDT_ALIGN(x, a) (((x) + (a) - 1) & ~((a) - 1)) |
56 | #define FDT_TAGALIGN(x) (FDT_ALIGN((x), FDT_TAGSIZE)) |
57 | |
58 | #define FDT_CHECK_HEADER(fdt) \ |
59 | { \ |
60 | int err; \ |
61 | if ((err = fdt_check_header(fdt)) != 0) \ |
62 | return err; \ |
63 | } |
64 | |
65 | int _fdt_check_node_offset(const void *fdt, int offset); |
66 | int _fdt_check_prop_offset(const void *fdt, int offset); |
67 | const char *_fdt_find_string(const char *strtab, int tabsize, const char *s); |
68 | int _fdt_node_end_offset(void *fdt, int nodeoffset); |
69 | |
70 | static inline const void *_fdt_offset_ptr(const void *fdt, int offset) |
71 | { |
72 | return (const char *)fdt + fdt_off_dt_struct(fdt) + offset; |
73 | } |
74 | |
75 | static inline void *_fdt_offset_ptr_w(void *fdt, int offset) |
76 | { |
77 | return (void *)(uintptr_t)_fdt_offset_ptr(fdt, offset); |
78 | } |
79 | |
80 | static inline const struct fdt_reserve_entry *_fdt_mem_rsv(const void *fdt, int n) |
81 | { |
82 | const struct fdt_reserve_entry *rsv_table = |
83 | (const struct fdt_reserve_entry *) |
84 | ((const char *)fdt + fdt_off_mem_rsvmap(fdt)); |
85 | |
86 | return rsv_table + n; |
87 | } |
88 | static inline struct fdt_reserve_entry *_fdt_mem_rsv_w(void *fdt, int n) |
89 | { |
90 | return (void *)(uintptr_t)_fdt_mem_rsv(fdt, n); |
91 | } |
92 | |
93 | #define FDT_SW_MAGIC (~FDT_MAGIC) |
94 | |
95 | #endif /* _LIBFDT_INTERNAL_H */ |
96 |