David Gibson | 3da0f9a | 2006-11-27 16:21:28 +1100 | [diff] [blame] | 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 | * |
David Gibson | 9481605 | 2007-06-13 16:30:48 +1000 | [diff] [blame] | 7 | * libfdt is dual licensed: you can use it either under the terms of |
| 8 | * the GPL, or the BSD license, at your option. |
David Gibson | 3da0f9a | 2006-11-27 16:21:28 +1100 | [diff] [blame] | 9 | * |
David Gibson | 9481605 | 2007-06-13 16:30:48 +1000 | [diff] [blame] | 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. |
David Gibson | 3da0f9a | 2006-11-27 16:21:28 +1100 | [diff] [blame] | 14 | * |
David Gibson | 9481605 | 2007-06-13 16:30:48 +1000 | [diff] [blame] | 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. |
David Gibson | 3da0f9a | 2006-11-27 16:21:28 +1100 | [diff] [blame] | 52 | */ |
| 53 | #include <fdt.h> |
| 54 | |
| 55 | #define ALIGN(x, a) (((x) + (a) - 1) & ~((a) - 1)) |
| 56 | #define PALIGN(p, a) ((void *)ALIGN((unsigned long)(p), (a))) |
| 57 | |
| 58 | #define memeq(p, q, n) (memcmp((p), (q), (n)) == 0) |
| 59 | #define streq(p, q) (strcmp((p), (q)) == 0) |
| 60 | |
David Gibson | 8a4e750 | 2008-02-18 18:06:31 +1100 | [diff] [blame] | 61 | #define CHECK_HEADER(fdt) \ |
| 62 | { \ |
| 63 | int err; \ |
| 64 | if ((err = fdt_check_header(fdt)) != 0) \ |
| 65 | return err; \ |
| 66 | } |
| 67 | |
David Gibson | 73d6092 | 2006-12-15 15:12:47 +1100 | [diff] [blame] | 68 | uint32_t _fdt_next_tag(const void *fdt, int startoffset, int *nextoffset); |
David Gibson | aa1baab | 2008-05-20 17:19:11 +1000 | [diff] [blame] | 69 | int _fdt_check_node_offset(const void *fdt, int offset); |
David Gibson | aeddfe2 | 2006-12-01 15:11:58 +1100 | [diff] [blame] | 70 | const char *_fdt_find_string(const char *strtab, int tabsize, const char *s); |
David Gibson | 73d6092 | 2006-12-15 15:12:47 +1100 | [diff] [blame] | 71 | int _fdt_node_end_offset(void *fdt, int nodeoffset); |
David Gibson | 3da0f9a | 2006-11-27 16:21:28 +1100 | [diff] [blame] | 72 | |
David Gibson | a6c76f9 | 2007-06-13 14:18:10 +1000 | [diff] [blame] | 73 | static inline const void *_fdt_offset_ptr(const void *fdt, int offset) |
David Gibson | 568b569 | 2006-12-12 15:46:14 +1100 | [diff] [blame] | 74 | { |
David Gibson | 36786db | 2008-07-07 10:10:48 +1000 | [diff] [blame] | 75 | return (const char *)fdt + fdt_off_dt_struct(fdt) + offset; |
David Gibson | a6c76f9 | 2007-06-13 14:18:10 +1000 | [diff] [blame] | 76 | } |
| 77 | |
| 78 | static inline void *_fdt_offset_ptr_w(void *fdt, int offset) |
| 79 | { |
David Gibson | 1409097 | 2008-07-07 10:14:15 +1000 | [diff] [blame^] | 80 | return (void *)(uintptr_t)_fdt_offset_ptr(fdt, offset); |
David Gibson | 568b569 | 2006-12-12 15:46:14 +1100 | [diff] [blame] | 81 | } |
| 82 | |
David Gibson | fd1bf3a | 2007-10-10 17:12:12 +1000 | [diff] [blame] | 83 | static inline const struct fdt_reserve_entry *_fdt_mem_rsv(const void *fdt, int n) |
| 84 | { |
David Gibson | 1409097 | 2008-07-07 10:14:15 +1000 | [diff] [blame^] | 85 | const struct fdt_reserve_entry *rsv_table = |
| 86 | (const struct fdt_reserve_entry *) |
David Gibson | 36786db | 2008-07-07 10:10:48 +1000 | [diff] [blame] | 87 | ((const char *)fdt + fdt_off_mem_rsvmap(fdt)); |
David Gibson | fd1bf3a | 2007-10-10 17:12:12 +1000 | [diff] [blame] | 88 | |
| 89 | return rsv_table + n; |
| 90 | } |
| 91 | static inline struct fdt_reserve_entry *_fdt_mem_rsv_w(void *fdt, int n) |
| 92 | { |
David Gibson | 1409097 | 2008-07-07 10:14:15 +1000 | [diff] [blame^] | 93 | return (void *)(uintptr_t)_fdt_mem_rsv(fdt, n); |
David Gibson | fd1bf3a | 2007-10-10 17:12:12 +1000 | [diff] [blame] | 94 | } |
| 95 | |
David Gibson | 063693a | 2006-11-29 16:45:46 +1100 | [diff] [blame] | 96 | #define SW_MAGIC (~FDT_MAGIC) |
David Gibson | 3da0f9a | 2006-11-27 16:21:28 +1100 | [diff] [blame] | 97 | |
| 98 | #endif /* _LIBFDT_INTERNAL_H */ |