David Gibson | a4da2e3 | 2007-12-18 15:06:42 +1100 | [diff] [blame] | 1 | #ifndef _DTC_H |
| 2 | #define _DTC_H |
| 3 | |
| 4 | /* |
| 5 | * (C) Copyright David Gibson <dwg@au1.ibm.com>, IBM Corporation. 2005. |
| 6 | * |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or |
| 9 | * modify it under the terms of the GNU General Public License as |
| 10 | * published by the Free Software Foundation; either version 2 of the |
| 11 | * License, or (at your option) any later version. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 16 | * General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU General Public License |
| 19 | * along with this program; if not, write to the Free Software |
| 20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 |
| 21 | * USA |
| 22 | */ |
| 23 | |
| 24 | #include <stdio.h> |
| 25 | #include <string.h> |
| 26 | #include <stdlib.h> |
| 27 | #include <stdint.h> |
Stephen Warren | cb261f0 | 2012-09-28 21:25:59 +0000 | [diff] [blame] | 28 | #include <stdbool.h> |
David Gibson | a4da2e3 | 2007-12-18 15:06:42 +1100 | [diff] [blame] | 29 | #include <stdarg.h> |
| 30 | #include <assert.h> |
| 31 | #include <ctype.h> |
| 32 | #include <errno.h> |
| 33 | #include <unistd.h> |
David Gibson | a4da2e3 | 2007-12-18 15:06:42 +1100 | [diff] [blame] | 34 | |
David Gibson | ed95d74 | 2008-08-07 12:24:17 +1000 | [diff] [blame] | 35 | #include <libfdt_env.h> |
David Gibson | a4da2e3 | 2007-12-18 15:06:42 +1100 | [diff] [blame] | 36 | #include <fdt.h> |
| 37 | |
John Bonesio | 658f29a | 2010-11-17 15:28:20 -0800 | [diff] [blame] | 38 | #include "util.h" |
| 39 | |
| 40 | #ifdef DEBUG |
| 41 | #define debug(fmt,args...) printf(fmt, ##args) |
| 42 | #else |
| 43 | #define debug(fmt,args...) |
| 44 | #endif |
| 45 | |
| 46 | |
David Gibson | a4da2e3 | 2007-12-18 15:06:42 +1100 | [diff] [blame] | 47 | #define DEFAULT_FDT_VERSION 17 |
John Bonesio | 658f29a | 2010-11-17 15:28:20 -0800 | [diff] [blame] | 48 | |
David Gibson | a4da2e3 | 2007-12-18 15:06:42 +1100 | [diff] [blame] | 49 | /* |
| 50 | * Command line options |
| 51 | */ |
| 52 | extern int quiet; /* Level of quietness */ |
| 53 | extern int reservenum; /* Number of memory reservation slots */ |
| 54 | extern int minsize; /* Minimum blob size */ |
| 55 | extern int padsize; /* Additional padding to blob */ |
John Bonesio | 658f29a | 2010-11-17 15:28:20 -0800 | [diff] [blame] | 56 | extern int phandle_format; /* Use linux,phandle or phandle properties */ |
David Gibson | a4da2e3 | 2007-12-18 15:06:42 +1100 | [diff] [blame] | 57 | |
John Bonesio | 658f29a | 2010-11-17 15:28:20 -0800 | [diff] [blame] | 58 | #define PHANDLE_LEGACY 0x1 |
| 59 | #define PHANDLE_EPAPR 0x2 |
| 60 | #define PHANDLE_BOTH 0x3 |
David Gibson | a4da2e3 | 2007-12-18 15:06:42 +1100 | [diff] [blame] | 61 | |
David Gibson | ed95d74 | 2008-08-07 12:24:17 +1000 | [diff] [blame] | 62 | typedef uint32_t cell_t; |
David Gibson | a4da2e3 | 2007-12-18 15:06:42 +1100 | [diff] [blame] | 63 | |
David Gibson | a4da2e3 | 2007-12-18 15:06:42 +1100 | [diff] [blame] | 64 | |
| 65 | #define streq(a, b) (strcmp((a), (b)) == 0) |
| 66 | #define strneq(a, b, n) (strncmp((a), (b), (n)) == 0) |
| 67 | |
| 68 | #define ALIGN(x, a) (((x) + (a) - 1) & ~((a) - 1)) |
| 69 | #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) |
| 70 | |
| 71 | /* Data blobs */ |
| 72 | enum markertype { |
| 73 | REF_PHANDLE, |
| 74 | REF_PATH, |
| 75 | LABEL, |
| 76 | }; |
| 77 | |
| 78 | struct marker { |
| 79 | enum markertype type; |
| 80 | int offset; |
| 81 | char *ref; |
| 82 | struct marker *next; |
| 83 | }; |
| 84 | |
| 85 | struct data { |
| 86 | int len; |
| 87 | char *val; |
David Gibson | a4da2e3 | 2007-12-18 15:06:42 +1100 | [diff] [blame] | 88 | struct marker *markers; |
| 89 | }; |
| 90 | |
| 91 | |
| 92 | #define empty_data ((struct data){ /* all .members = 0 or NULL */ }) |
| 93 | |
| 94 | #define for_each_marker(m) \ |
| 95 | for (; (m); (m) = (m)->next) |
| 96 | #define for_each_marker_of_type(m, t) \ |
| 97 | for_each_marker(m) \ |
| 98 | if ((m)->type == (t)) |
| 99 | |
| 100 | void data_free(struct data d); |
| 101 | |
| 102 | struct data data_grow_for(struct data d, int xlen); |
| 103 | |
| 104 | struct data data_copy_mem(const char *mem, int len); |
| 105 | struct data data_copy_escape_string(const char *s, int len); |
| 106 | struct data data_copy_file(FILE *f, size_t len); |
| 107 | |
| 108 | struct data data_append_data(struct data d, const void *p, int len); |
| 109 | struct data data_insert_at_marker(struct data d, struct marker *m, |
| 110 | const void *p, int len); |
| 111 | struct data data_merge(struct data d1, struct data d2); |
| 112 | struct data data_append_cell(struct data d, cell_t word); |
Stephen Warren | cb261f0 | 2012-09-28 21:25:59 +0000 | [diff] [blame] | 113 | struct data data_append_integer(struct data d, uint64_t word, int bits); |
David Gibson | a4da2e3 | 2007-12-18 15:06:42 +1100 | [diff] [blame] | 114 | struct data data_append_re(struct data d, const struct fdt_reserve_entry *re); |
David Gibson | ed95d74 | 2008-08-07 12:24:17 +1000 | [diff] [blame] | 115 | struct data data_append_addr(struct data d, uint64_t addr); |
David Gibson | a4da2e3 | 2007-12-18 15:06:42 +1100 | [diff] [blame] | 116 | struct data data_append_byte(struct data d, uint8_t byte); |
| 117 | struct data data_append_zeroes(struct data d, int len); |
| 118 | struct data data_append_align(struct data d, int align); |
| 119 | |
| 120 | struct data data_add_marker(struct data d, enum markertype type, char *ref); |
| 121 | |
| 122 | int data_is_one_string(struct data d); |
| 123 | |
| 124 | /* DT constraints */ |
| 125 | |
| 126 | #define MAX_PROPNAME_LEN 31 |
| 127 | #define MAX_NODENAME_LEN 31 |
| 128 | |
| 129 | /* Live trees */ |
John Bonesio | 658f29a | 2010-11-17 15:28:20 -0800 | [diff] [blame] | 130 | struct label { |
Stephen Warren | cb261f0 | 2012-09-28 21:25:59 +0000 | [diff] [blame] | 131 | int deleted; |
John Bonesio | 658f29a | 2010-11-17 15:28:20 -0800 | [diff] [blame] | 132 | char *label; |
| 133 | struct label *next; |
| 134 | }; |
| 135 | |
David Gibson | a4da2e3 | 2007-12-18 15:06:42 +1100 | [diff] [blame] | 136 | struct property { |
Stephen Warren | cb261f0 | 2012-09-28 21:25:59 +0000 | [diff] [blame] | 137 | int deleted; |
David Gibson | a4da2e3 | 2007-12-18 15:06:42 +1100 | [diff] [blame] | 138 | char *name; |
| 139 | struct data val; |
| 140 | |
| 141 | struct property *next; |
| 142 | |
John Bonesio | 658f29a | 2010-11-17 15:28:20 -0800 | [diff] [blame] | 143 | struct label *labels; |
David Gibson | a4da2e3 | 2007-12-18 15:06:42 +1100 | [diff] [blame] | 144 | }; |
| 145 | |
| 146 | struct node { |
Stephen Warren | cb261f0 | 2012-09-28 21:25:59 +0000 | [diff] [blame] | 147 | int deleted; |
David Gibson | a4da2e3 | 2007-12-18 15:06:42 +1100 | [diff] [blame] | 148 | char *name; |
| 149 | struct property *proplist; |
| 150 | struct node *children; |
| 151 | |
| 152 | struct node *parent; |
| 153 | struct node *next_sibling; |
| 154 | |
| 155 | char *fullpath; |
| 156 | int basenamelen; |
| 157 | |
| 158 | cell_t phandle; |
| 159 | int addr_cells, size_cells; |
| 160 | |
John Bonesio | 658f29a | 2010-11-17 15:28:20 -0800 | [diff] [blame] | 161 | struct label *labels; |
David Gibson | a4da2e3 | 2007-12-18 15:06:42 +1100 | [diff] [blame] | 162 | }; |
| 163 | |
Stephen Warren | cb261f0 | 2012-09-28 21:25:59 +0000 | [diff] [blame] | 164 | #define for_each_label_withdel(l0, l) \ |
John Bonesio | 658f29a | 2010-11-17 15:28:20 -0800 | [diff] [blame] | 165 | for ((l) = (l0); (l); (l) = (l)->next) |
| 166 | |
Stephen Warren | e195e9b | 2012-10-08 16:15:26 -0600 | [diff] [blame] | 167 | #define for_each_label(l0, l) \ |
| 168 | for_each_label_withdel(l0, l) \ |
| 169 | if (!(l)->deleted) |
Stephen Warren | cb261f0 | 2012-09-28 21:25:59 +0000 | [diff] [blame] | 170 | |
| 171 | #define for_each_property_withdel(n, p) \ |
David Gibson | a4da2e3 | 2007-12-18 15:06:42 +1100 | [diff] [blame] | 172 | for ((p) = (n)->proplist; (p); (p) = (p)->next) |
| 173 | |
Stephen Warren | e195e9b | 2012-10-08 16:15:26 -0600 | [diff] [blame] | 174 | #define for_each_property(n, p) \ |
| 175 | for_each_property_withdel(n, p) \ |
| 176 | if (!(p)->deleted) |
Stephen Warren | cb261f0 | 2012-09-28 21:25:59 +0000 | [diff] [blame] | 177 | |
| 178 | #define for_each_child_withdel(n, c) \ |
David Gibson | a4da2e3 | 2007-12-18 15:06:42 +1100 | [diff] [blame] | 179 | for ((c) = (n)->children; (c); (c) = (c)->next_sibling) |
| 180 | |
Stephen Warren | e195e9b | 2012-10-08 16:15:26 -0600 | [diff] [blame] | 181 | #define for_each_child(n, c) \ |
| 182 | for_each_child_withdel(n, c) \ |
| 183 | if (!(c)->deleted) |
| 184 | |
John Bonesio | 658f29a | 2010-11-17 15:28:20 -0800 | [diff] [blame] | 185 | void add_label(struct label **labels, char *label); |
Stephen Warren | cb261f0 | 2012-09-28 21:25:59 +0000 | [diff] [blame] | 186 | void delete_labels(struct label **labels); |
John Bonesio | 658f29a | 2010-11-17 15:28:20 -0800 | [diff] [blame] | 187 | |
| 188 | struct property *build_property(char *name, struct data val); |
Stephen Warren | cb261f0 | 2012-09-28 21:25:59 +0000 | [diff] [blame] | 189 | struct property *build_property_delete(char *name); |
David Gibson | a4da2e3 | 2007-12-18 15:06:42 +1100 | [diff] [blame] | 190 | struct property *chain_property(struct property *first, struct property *list); |
| 191 | struct property *reverse_properties(struct property *first); |
| 192 | |
| 193 | struct node *build_node(struct property *proplist, struct node *children); |
Stephen Warren | cb261f0 | 2012-09-28 21:25:59 +0000 | [diff] [blame] | 194 | struct node *build_node_delete(void); |
John Bonesio | 658f29a | 2010-11-17 15:28:20 -0800 | [diff] [blame] | 195 | struct node *name_node(struct node *node, char *name); |
David Gibson | a4da2e3 | 2007-12-18 15:06:42 +1100 | [diff] [blame] | 196 | struct node *chain_node(struct node *first, struct node *list); |
John Bonesio | 658f29a | 2010-11-17 15:28:20 -0800 | [diff] [blame] | 197 | struct node *merge_nodes(struct node *old_node, struct node *new_node); |
David Gibson | a4da2e3 | 2007-12-18 15:06:42 +1100 | [diff] [blame] | 198 | |
| 199 | void add_property(struct node *node, struct property *prop); |
Stephen Warren | cb261f0 | 2012-09-28 21:25:59 +0000 | [diff] [blame] | 200 | void delete_property_by_name(struct node *node, char *name); |
| 201 | void delete_property(struct property *prop); |
David Gibson | a4da2e3 | 2007-12-18 15:06:42 +1100 | [diff] [blame] | 202 | void add_child(struct node *parent, struct node *child); |
Stephen Warren | cb261f0 | 2012-09-28 21:25:59 +0000 | [diff] [blame] | 203 | void delete_node_by_name(struct node *parent, char *name); |
| 204 | void delete_node(struct node *node); |
David Gibson | a4da2e3 | 2007-12-18 15:06:42 +1100 | [diff] [blame] | 205 | |
| 206 | const char *get_unitname(struct node *node); |
| 207 | struct property *get_property(struct node *node, const char *propname); |
| 208 | cell_t propval_cell(struct property *prop); |
John Bonesio | 658f29a | 2010-11-17 15:28:20 -0800 | [diff] [blame] | 209 | struct property *get_property_by_label(struct node *tree, const char *label, |
| 210 | struct node **node); |
| 211 | struct marker *get_marker_label(struct node *tree, const char *label, |
| 212 | struct node **node, struct property **prop); |
David Gibson | a4da2e3 | 2007-12-18 15:06:42 +1100 | [diff] [blame] | 213 | struct node *get_subnode(struct node *node, const char *nodename); |
| 214 | struct node *get_node_by_path(struct node *tree, const char *path); |
| 215 | struct node *get_node_by_label(struct node *tree, const char *label); |
| 216 | struct node *get_node_by_phandle(struct node *tree, cell_t phandle); |
| 217 | struct node *get_node_by_ref(struct node *tree, const char *ref); |
| 218 | cell_t get_node_phandle(struct node *root, struct node *node); |
| 219 | |
John Bonesio | 658f29a | 2010-11-17 15:28:20 -0800 | [diff] [blame] | 220 | uint32_t guess_boot_cpuid(struct node *tree); |
| 221 | |
David Gibson | a4da2e3 | 2007-12-18 15:06:42 +1100 | [diff] [blame] | 222 | /* Boot info (tree plus memreserve information */ |
| 223 | |
| 224 | struct reserve_info { |
| 225 | struct fdt_reserve_entry re; |
| 226 | |
| 227 | struct reserve_info *next; |
| 228 | |
John Bonesio | 658f29a | 2010-11-17 15:28:20 -0800 | [diff] [blame] | 229 | struct label *labels; |
David Gibson | a4da2e3 | 2007-12-18 15:06:42 +1100 | [diff] [blame] | 230 | }; |
| 231 | |
John Bonesio | 658f29a | 2010-11-17 15:28:20 -0800 | [diff] [blame] | 232 | struct reserve_info *build_reserve_entry(uint64_t start, uint64_t len); |
David Gibson | a4da2e3 | 2007-12-18 15:06:42 +1100 | [diff] [blame] | 233 | struct reserve_info *chain_reserve_entry(struct reserve_info *first, |
| 234 | struct reserve_info *list); |
| 235 | struct reserve_info *add_reserve_entry(struct reserve_info *list, |
| 236 | struct reserve_info *new); |
| 237 | |
| 238 | |
| 239 | struct boot_info { |
| 240 | struct reserve_info *reservelist; |
| 241 | struct node *dt; /* the device tree */ |
David Gibson | ed95d74 | 2008-08-07 12:24:17 +1000 | [diff] [blame] | 242 | uint32_t boot_cpuid_phys; |
David Gibson | a4da2e3 | 2007-12-18 15:06:42 +1100 | [diff] [blame] | 243 | }; |
| 244 | |
| 245 | struct boot_info *build_boot_info(struct reserve_info *reservelist, |
David Gibson | ed95d74 | 2008-08-07 12:24:17 +1000 | [diff] [blame] | 246 | struct node *tree, uint32_t boot_cpuid_phys); |
John Bonesio | 658f29a | 2010-11-17 15:28:20 -0800 | [diff] [blame] | 247 | void sort_tree(struct boot_info *bi); |
David Gibson | a4da2e3 | 2007-12-18 15:06:42 +1100 | [diff] [blame] | 248 | |
| 249 | /* Checks */ |
| 250 | |
Stephen Warren | cb261f0 | 2012-09-28 21:25:59 +0000 | [diff] [blame] | 251 | void parse_checks_option(bool warn, bool error, const char *optarg); |
David Gibson | ed95d74 | 2008-08-07 12:24:17 +1000 | [diff] [blame] | 252 | void process_checks(int force, struct boot_info *bi); |
David Gibson | a4da2e3 | 2007-12-18 15:06:42 +1100 | [diff] [blame] | 253 | |
| 254 | /* Flattened trees */ |
| 255 | |
David Gibson | ed95d74 | 2008-08-07 12:24:17 +1000 | [diff] [blame] | 256 | void dt_to_blob(FILE *f, struct boot_info *bi, int version); |
| 257 | void dt_to_asm(FILE *f, struct boot_info *bi, int version); |
David Gibson | a4da2e3 | 2007-12-18 15:06:42 +1100 | [diff] [blame] | 258 | |
David Gibson | ed95d74 | 2008-08-07 12:24:17 +1000 | [diff] [blame] | 259 | struct boot_info *dt_from_blob(const char *fname); |
David Gibson | a4da2e3 | 2007-12-18 15:06:42 +1100 | [diff] [blame] | 260 | |
| 261 | /* Tree source */ |
| 262 | |
| 263 | void dt_to_source(FILE *f, struct boot_info *bi); |
| 264 | struct boot_info *dt_from_source(const char *f); |
| 265 | |
| 266 | /* FS trees */ |
| 267 | |
| 268 | struct boot_info *dt_from_fs(const char *dirname); |
| 269 | |
David Gibson | a4da2e3 | 2007-12-18 15:06:42 +1100 | [diff] [blame] | 270 | #endif /* _DTC_H */ |