David Gibson | fc14dad | 2005-06-08 17:18:34 +1000 | [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 | * |
David Gibson | 63dc9c7 | 2007-09-18 11:44:04 +1000 | [diff] [blame] | 7 | * |
David Gibson | fc14dad | 2005-06-08 17:18:34 +1000 | [diff] [blame] | 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. |
David Gibson | 63dc9c7 | 2007-09-18 11:44:04 +1000 | [diff] [blame] | 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 |
David Gibson | fc14dad | 2005-06-08 17:18:34 +1000 | [diff] [blame] | 22 | */ |
| 23 | |
| 24 | #include <stdio.h> |
| 25 | #include <string.h> |
| 26 | #include <stdlib.h> |
| 27 | #include <stdint.h> |
| 28 | #include <stdarg.h> |
| 29 | #include <assert.h> |
| 30 | #include <ctype.h> |
| 31 | #include <errno.h> |
| 32 | #include <unistd.h> |
| 33 | #include <netinet/in.h> |
David Gibson | f0517db | 2005-07-15 17:14:24 +1000 | [diff] [blame] | 34 | #include <endian.h> |
| 35 | #include <byteswap.h> |
| 36 | |
David Gibson | fb7c7ac | 2007-09-26 13:11:05 +1000 | [diff] [blame] | 37 | #include <fdt.h> |
David Gibson | fc14dad | 2005-06-08 17:18:34 +1000 | [diff] [blame] | 38 | |
David Gibson | fb7c7ac | 2007-09-26 13:11:05 +1000 | [diff] [blame] | 39 | #define DEFAULT_FDT_VERSION 17 |
Jerry Van Baren | cd1da87 | 2007-03-18 16:49:24 -0400 | [diff] [blame] | 40 | /* |
Jerry Van Baren | 4384b23 | 2007-04-04 22:04:33 -0400 | [diff] [blame] | 41 | * Command line options |
Jerry Van Baren | cd1da87 | 2007-03-18 16:49:24 -0400 | [diff] [blame] | 42 | */ |
Jerry Van Baren | 4384b23 | 2007-04-04 22:04:33 -0400 | [diff] [blame] | 43 | extern int quiet; /* Level of quietness */ |
| 44 | extern int reservenum; /* Number of memory reservation slots */ |
| 45 | extern int minsize; /* Minimum blob size */ |
Kumar Gala | 2b7dc8d | 2007-11-28 10:21:12 -0600 | [diff] [blame] | 46 | extern int padsize; /* Additional padding to blob */ |
Jerry Van Baren | cd1da87 | 2007-03-18 16:49:24 -0400 | [diff] [blame] | 47 | |
David Gibson | bf94497 | 2007-08-31 16:21:23 +1000 | [diff] [blame] | 48 | static inline void __attribute__((noreturn)) die(char * str, ...) |
David Gibson | fc14dad | 2005-06-08 17:18:34 +1000 | [diff] [blame] | 49 | { |
| 50 | va_list ap; |
| 51 | |
| 52 | va_start(ap, str); |
| 53 | fprintf(stderr, "FATAL ERROR: "); |
| 54 | vfprintf(stderr, str, ap); |
| 55 | exit(1); |
| 56 | } |
| 57 | |
| 58 | static inline void *xmalloc(size_t len) |
| 59 | { |
| 60 | void *new = malloc(len); |
| 61 | |
| 62 | if (! new) |
| 63 | die("malloc() failed\n"); |
| 64 | |
| 65 | return new; |
| 66 | } |
| 67 | |
| 68 | static inline void *xrealloc(void *p, size_t len) |
| 69 | { |
| 70 | void *new = realloc(p, len); |
| 71 | |
| 72 | if (! new) |
| 73 | die("realloc() failed (len=%d)\n", len); |
| 74 | |
| 75 | return new; |
| 76 | } |
| 77 | |
David Gibson | 03a9b9d | 2005-07-11 16:49:52 +1000 | [diff] [blame] | 78 | typedef uint8_t u8; |
David Gibson | fc14dad | 2005-06-08 17:18:34 +1000 | [diff] [blame] | 79 | typedef uint16_t u16; |
| 80 | typedef uint32_t u32; |
| 81 | typedef uint64_t u64; |
| 82 | typedef u32 cell_t; |
| 83 | |
| 84 | #define cpu_to_be16(x) htons(x) |
| 85 | #define be16_to_cpu(x) ntohs(x) |
| 86 | |
| 87 | #define cpu_to_be32(x) htonl(x) |
| 88 | #define be32_to_cpu(x) ntohl(x) |
| 89 | |
David Gibson | f0517db | 2005-07-15 17:14:24 +1000 | [diff] [blame] | 90 | #if __BYTE_ORDER == __BIG_ENDIAN |
| 91 | #define cpu_to_be64(x) (x) |
| 92 | #define be64_to_cpu(x) (x) |
| 93 | #else |
| 94 | #define cpu_to_be64(x) bswap_64(x) |
| 95 | #define be64_to_cpu(x) bswap_64(x) |
| 96 | #endif |
David Gibson | fc14dad | 2005-06-08 17:18:34 +1000 | [diff] [blame] | 97 | |
| 98 | #define streq(a, b) (strcmp((a), (b)) == 0) |
David Gibson | 81f2e89 | 2005-06-16 17:04:00 +1000 | [diff] [blame] | 99 | #define strneq(a, b, n) (strncmp((a), (b), (n)) == 0) |
| 100 | |
David Gibson | fc14dad | 2005-06-08 17:18:34 +1000 | [diff] [blame] | 101 | #define ALIGN(x, a) (((x) + (a) - 1) & ~((a) - 1)) |
| 102 | #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) |
| 103 | |
| 104 | /* Data blobs */ |
David Gibson | dc94177 | 2007-11-22 14:39:23 +1100 | [diff] [blame] | 105 | enum markertype { |
| 106 | REF_PHANDLE, |
David Gibson | efbbef8 | 2007-12-05 10:43:50 +1100 | [diff] [blame] | 107 | REF_PATH, |
David Gibson | dc94177 | 2007-11-22 14:39:23 +1100 | [diff] [blame] | 108 | LABEL, |
| 109 | }; |
| 110 | |
| 111 | struct marker { |
| 112 | enum markertype type; |
David Gibson | 81f2e89 | 2005-06-16 17:04:00 +1000 | [diff] [blame] | 113 | int offset; |
| 114 | char *ref; |
David Gibson | dc94177 | 2007-11-22 14:39:23 +1100 | [diff] [blame] | 115 | struct marker *next; |
David Gibson | 81f2e89 | 2005-06-16 17:04:00 +1000 | [diff] [blame] | 116 | }; |
| 117 | |
David Gibson | fc14dad | 2005-06-08 17:18:34 +1000 | [diff] [blame] | 118 | struct data { |
| 119 | int len; |
| 120 | char *val; |
| 121 | int asize; |
David Gibson | dc94177 | 2007-11-22 14:39:23 +1100 | [diff] [blame] | 122 | struct marker *markers; |
David Gibson | fc14dad | 2005-06-08 17:18:34 +1000 | [diff] [blame] | 123 | }; |
| 124 | |
David Gibson | dc94177 | 2007-11-22 14:39:23 +1100 | [diff] [blame] | 125 | |
Milton Miller | 6a99b13 | 2007-07-07 01:18:51 -0500 | [diff] [blame] | 126 | #define empty_data ((struct data){ /* all .members = 0 or NULL */ }) |
David Gibson | fc14dad | 2005-06-08 17:18:34 +1000 | [diff] [blame] | 127 | |
David Gibson | dc94177 | 2007-11-22 14:39:23 +1100 | [diff] [blame] | 128 | #define for_each_marker(m) \ |
| 129 | for (; (m); (m) = (m)->next) |
| 130 | #define for_each_marker_of_type(m, t) \ |
| 131 | for_each_marker(m) \ |
| 132 | if ((m)->type == (t)) |
| 133 | |
David Gibson | fc14dad | 2005-06-08 17:18:34 +1000 | [diff] [blame] | 134 | void data_free(struct data d); |
| 135 | |
| 136 | struct data data_grow_for(struct data d, int xlen); |
| 137 | |
David Gibson | 92cb9a2 | 2007-12-04 14:26:15 +1100 | [diff] [blame] | 138 | struct data data_copy_mem(const char *mem, int len); |
| 139 | struct data data_copy_escape_string(const char *s, int len); |
David Gibson | fc14dad | 2005-06-08 17:18:34 +1000 | [diff] [blame] | 140 | struct data data_copy_file(FILE *f, size_t len); |
| 141 | |
David Gibson | 92cb9a2 | 2007-12-04 14:26:15 +1100 | [diff] [blame] | 142 | struct data data_append_data(struct data d, const void *p, int len); |
David Gibson | efbbef8 | 2007-12-05 10:43:50 +1100 | [diff] [blame] | 143 | struct data data_insert_at_marker(struct data d, struct marker *m, |
| 144 | const void *p, int len); |
David Gibson | 32da475 | 2007-02-07 16:37:50 +1100 | [diff] [blame] | 145 | struct data data_merge(struct data d1, struct data d2); |
David Gibson | fc14dad | 2005-06-08 17:18:34 +1000 | [diff] [blame] | 146 | struct data data_append_cell(struct data d, cell_t word); |
David Gibson | 92cb9a2 | 2007-12-04 14:26:15 +1100 | [diff] [blame] | 147 | struct data data_append_re(struct data d, const struct fdt_reserve_entry *re); |
David Gibson | f0517db | 2005-07-15 17:14:24 +1000 | [diff] [blame] | 148 | struct data data_append_addr(struct data d, u64 addr); |
David Gibson | fc14dad | 2005-06-08 17:18:34 +1000 | [diff] [blame] | 149 | struct data data_append_byte(struct data d, uint8_t byte); |
| 150 | struct data data_append_zeroes(struct data d, int len); |
| 151 | struct data data_append_align(struct data d, int align); |
| 152 | |
David Gibson | dc94177 | 2007-11-22 14:39:23 +1100 | [diff] [blame] | 153 | struct data data_add_marker(struct data d, enum markertype type, char *ref); |
David Gibson | 81f2e89 | 2005-06-16 17:04:00 +1000 | [diff] [blame] | 154 | |
David Gibson | fc14dad | 2005-06-08 17:18:34 +1000 | [diff] [blame] | 155 | int data_is_one_string(struct data d); |
| 156 | |
| 157 | /* DT constraints */ |
| 158 | |
| 159 | #define MAX_PROPNAME_LEN 31 |
| 160 | #define MAX_NODENAME_LEN 31 |
| 161 | |
| 162 | /* Live trees */ |
| 163 | struct property { |
| 164 | char *name; |
| 165 | struct data val; |
| 166 | |
| 167 | struct property *next; |
David Gibson | 4102d84 | 2005-06-16 14:36:37 +1000 | [diff] [blame] | 168 | |
| 169 | char *label; |
David Gibson | fc14dad | 2005-06-08 17:18:34 +1000 | [diff] [blame] | 170 | }; |
| 171 | |
| 172 | struct node { |
| 173 | char *name; |
| 174 | struct property *proplist; |
| 175 | struct node *children; |
| 176 | |
| 177 | struct node *parent; |
| 178 | struct node *next_sibling; |
| 179 | |
| 180 | char *fullpath; |
| 181 | int basenamelen; |
| 182 | |
| 183 | cell_t phandle; |
| 184 | int addr_cells, size_cells; |
David Gibson | 4102d84 | 2005-06-16 14:36:37 +1000 | [diff] [blame] | 185 | |
| 186 | char *label; |
David Gibson | fc14dad | 2005-06-08 17:18:34 +1000 | [diff] [blame] | 187 | }; |
| 188 | |
| 189 | #define for_each_property(n, p) \ |
| 190 | for ((p) = (n)->proplist; (p); (p) = (p)->next) |
| 191 | |
| 192 | #define for_each_child(n, c) \ |
| 193 | for ((c) = (n)->children; (c); (c) = (c)->next_sibling) |
| 194 | |
David Gibson | 4102d84 | 2005-06-16 14:36:37 +1000 | [diff] [blame] | 195 | struct property *build_property(char *name, struct data val, char *label); |
David Gibson | fc14dad | 2005-06-08 17:18:34 +1000 | [diff] [blame] | 196 | struct property *chain_property(struct property *first, struct property *list); |
Jon Loeliger | 7b3fb78 | 2007-10-22 16:09:56 -0500 | [diff] [blame] | 197 | struct property *reverse_properties(struct property *first); |
David Gibson | fc14dad | 2005-06-08 17:18:34 +1000 | [diff] [blame] | 198 | |
| 199 | struct node *build_node(struct property *proplist, struct node *children); |
David Gibson | 4102d84 | 2005-06-16 14:36:37 +1000 | [diff] [blame] | 200 | struct node *name_node(struct node *node, char *name, char *label); |
David Gibson | fc14dad | 2005-06-08 17:18:34 +1000 | [diff] [blame] | 201 | struct node *chain_node(struct node *first, struct node *list); |
| 202 | |
| 203 | void add_property(struct node *node, struct property *prop); |
| 204 | void add_child(struct node *parent, struct node *child); |
| 205 | |
David Gibson | 92cb9a2 | 2007-12-04 14:26:15 +1100 | [diff] [blame] | 206 | const char *get_unitname(struct node *node); |
| 207 | struct property *get_property(struct node *node, const char *propname); |
David Gibson | 2f1ccc3 | 2007-11-01 16:49:26 +1100 | [diff] [blame] | 208 | cell_t propval_cell(struct property *prop); |
David Gibson | 92cb9a2 | 2007-12-04 14:26:15 +1100 | [diff] [blame] | 209 | struct node *get_subnode(struct node *node, const char *nodename); |
| 210 | struct node *get_node_by_path(struct node *tree, const char *path); |
David Gibson | b16a2bd | 2007-11-22 14:38:07 +1100 | [diff] [blame] | 211 | struct node *get_node_by_label(struct node *tree, const char *label); |
David Gibson | 2f1ccc3 | 2007-11-01 16:49:26 +1100 | [diff] [blame] | 212 | struct node *get_node_by_phandle(struct node *tree, cell_t phandle); |
David Gibson | 92cb9a2 | 2007-12-04 14:26:15 +1100 | [diff] [blame] | 213 | struct node *get_node_by_ref(struct node *tree, const char *ref); |
David Gibson | b16a2bd | 2007-11-22 14:38:07 +1100 | [diff] [blame] | 214 | cell_t get_node_phandle(struct node *root, struct node *node); |
David Gibson | fc14dad | 2005-06-08 17:18:34 +1000 | [diff] [blame] | 215 | |
David Gibson | f0517db | 2005-07-15 17:14:24 +1000 | [diff] [blame] | 216 | /* Boot info (tree plus memreserve information */ |
| 217 | |
David Gibson | f040d95 | 2005-10-24 18:18:38 +1000 | [diff] [blame] | 218 | struct reserve_info { |
David Gibson | fb7c7ac | 2007-09-26 13:11:05 +1000 | [diff] [blame] | 219 | struct fdt_reserve_entry re; |
David Gibson | f040d95 | 2005-10-24 18:18:38 +1000 | [diff] [blame] | 220 | |
| 221 | struct reserve_info *next; |
| 222 | |
| 223 | char *label; |
| 224 | }; |
| 225 | |
| 226 | struct reserve_info *build_reserve_entry(u64 start, u64 len, char *label); |
| 227 | struct reserve_info *chain_reserve_entry(struct reserve_info *first, |
| 228 | struct reserve_info *list); |
| 229 | struct reserve_info *add_reserve_entry(struct reserve_info *list, |
| 230 | struct reserve_info *new); |
| 231 | |
| 232 | |
David Gibson | f0517db | 2005-07-15 17:14:24 +1000 | [diff] [blame] | 233 | struct boot_info { |
David Gibson | f040d95 | 2005-10-24 18:18:38 +1000 | [diff] [blame] | 234 | struct reserve_info *reservelist; |
David Gibson | f0517db | 2005-07-15 17:14:24 +1000 | [diff] [blame] | 235 | struct node *dt; /* the device tree */ |
Scott Wood | ad4f54a | 2008-01-03 17:43:33 -0600 | [diff] [blame] | 236 | int error; |
David Gibson | f0517db | 2005-07-15 17:14:24 +1000 | [diff] [blame] | 237 | }; |
| 238 | |
David Gibson | f040d95 | 2005-10-24 18:18:38 +1000 | [diff] [blame] | 239 | struct boot_info *build_boot_info(struct reserve_info *reservelist, |
David Gibson | f0517db | 2005-07-15 17:14:24 +1000 | [diff] [blame] | 240 | struct node *tree); |
| 241 | |
David Gibson | 2f1ccc3 | 2007-11-01 16:49:26 +1100 | [diff] [blame] | 242 | /* Checks */ |
| 243 | |
David Gibson | 376ab6f | 2007-12-18 14:54:38 +1100 | [diff] [blame] | 244 | void process_checks(int force, struct boot_info *bi); |
David Gibson | 2f1ccc3 | 2007-11-01 16:49:26 +1100 | [diff] [blame] | 245 | |
David Gibson | fc14dad | 2005-06-08 17:18:34 +1000 | [diff] [blame] | 246 | /* Flattened trees */ |
| 247 | |
Michael Neuling | 38e8f8f | 2006-05-31 08:31:51 +1000 | [diff] [blame] | 248 | void dt_to_blob(FILE *f, struct boot_info *bi, int version, |
| 249 | int boot_cpuid_phys); |
| 250 | void dt_to_asm(FILE *f, struct boot_info *bi, int version, |
| 251 | int boot_cpuid_phys); |
David Gibson | fc14dad | 2005-06-08 17:18:34 +1000 | [diff] [blame] | 252 | |
David Gibson | f0517db | 2005-07-15 17:14:24 +1000 | [diff] [blame] | 253 | struct boot_info *dt_from_blob(FILE *f); |
David Gibson | fc14dad | 2005-06-08 17:18:34 +1000 | [diff] [blame] | 254 | |
| 255 | /* Tree source */ |
| 256 | |
David Gibson | 712e52e | 2005-10-26 16:56:26 +1000 | [diff] [blame] | 257 | void dt_to_source(FILE *f, struct boot_info *bi); |
Jon Loeliger | e45e6fd | 2007-03-23 15:18:41 -0500 | [diff] [blame] | 258 | struct boot_info *dt_from_source(const char *f); |
David Gibson | fc14dad | 2005-06-08 17:18:34 +1000 | [diff] [blame] | 259 | |
| 260 | /* FS trees */ |
| 261 | |
David Gibson | 92cb9a2 | 2007-12-04 14:26:15 +1100 | [diff] [blame] | 262 | struct boot_info *dt_from_fs(const char *dirname); |
David Gibson | fc14dad | 2005-06-08 17:18:34 +1000 | [diff] [blame] | 263 | |
| 264 | /* misc */ |
| 265 | |
David Gibson | 92cb9a2 | 2007-12-04 14:26:15 +1100 | [diff] [blame] | 266 | char *join_path(const char *path, const char *name); |
David Gibson | fc14dad | 2005-06-08 17:18:34 +1000 | [diff] [blame] | 267 | |
| 268 | #endif /* _DTC_H */ |