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Source at commit cdde9cf73945d547acd3e96f9508c79e84ad0bf1 created 12 years 9 months ago. By Maarten ter Huurne, MMC: JZ4740: Added support for CPU frequency changing | |
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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> |
28 | #include <stdarg.h> |
29 | #include <assert.h> |
30 | #include <ctype.h> |
31 | #include <errno.h> |
32 | #include <unistd.h> |
33 | |
34 | #include <libfdt_env.h> |
35 | #include <fdt.h> |
36 | |
37 | #include "util.h" |
38 | |
39 | #ifdef DEBUG |
40 | #define debug(fmt,args...) printf(fmt, ##args) |
41 | #else |
42 | #define debug(fmt,args...) |
43 | #endif |
44 | |
45 | |
46 | #define DEFAULT_FDT_VERSION 17 |
47 | |
48 | /* |
49 | * Command line options |
50 | */ |
51 | extern int quiet; /* Level of quietness */ |
52 | extern int reservenum; /* Number of memory reservation slots */ |
53 | extern int minsize; /* Minimum blob size */ |
54 | extern int padsize; /* Additional padding to blob */ |
55 | extern int phandle_format; /* Use linux,phandle or phandle properties */ |
56 | |
57 | #define PHANDLE_LEGACY 0x1 |
58 | #define PHANDLE_EPAPR 0x2 |
59 | #define PHANDLE_BOTH 0x3 |
60 | |
61 | typedef uint32_t cell_t; |
62 | |
63 | |
64 | #define streq(a, b) (strcmp((a), (b)) == 0) |
65 | #define strneq(a, b, n) (strncmp((a), (b), (n)) == 0) |
66 | |
67 | #define ALIGN(x, a) (((x) + (a) - 1) & ~((a) - 1)) |
68 | #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) |
69 | |
70 | /* Data blobs */ |
71 | enum markertype { |
72 | REF_PHANDLE, |
73 | REF_PATH, |
74 | LABEL, |
75 | }; |
76 | |
77 | struct marker { |
78 | enum markertype type; |
79 | int offset; |
80 | char *ref; |
81 | struct marker *next; |
82 | }; |
83 | |
84 | struct data { |
85 | int len; |
86 | char *val; |
87 | struct marker *markers; |
88 | }; |
89 | |
90 | |
91 | #define empty_data ((struct data){ /* all .members = 0 or NULL */ }) |
92 | |
93 | #define for_each_marker(m) \ |
94 | for (; (m); (m) = (m)->next) |
95 | #define for_each_marker_of_type(m, t) \ |
96 | for_each_marker(m) \ |
97 | if ((m)->type == (t)) |
98 | |
99 | void data_free(struct data d); |
100 | |
101 | struct data data_grow_for(struct data d, int xlen); |
102 | |
103 | struct data data_copy_mem(const char *mem, int len); |
104 | struct data data_copy_escape_string(const char *s, int len); |
105 | struct data data_copy_file(FILE *f, size_t len); |
106 | |
107 | struct data data_append_data(struct data d, const void *p, int len); |
108 | struct data data_insert_at_marker(struct data d, struct marker *m, |
109 | const void *p, int len); |
110 | struct data data_merge(struct data d1, struct data d2); |
111 | struct data data_append_cell(struct data d, cell_t word); |
112 | struct data data_append_re(struct data d, const struct fdt_reserve_entry *re); |
113 | struct data data_append_addr(struct data d, uint64_t addr); |
114 | struct data data_append_byte(struct data d, uint8_t byte); |
115 | struct data data_append_zeroes(struct data d, int len); |
116 | struct data data_append_align(struct data d, int align); |
117 | |
118 | struct data data_add_marker(struct data d, enum markertype type, char *ref); |
119 | |
120 | int data_is_one_string(struct data d); |
121 | |
122 | /* DT constraints */ |
123 | |
124 | #define MAX_PROPNAME_LEN 31 |
125 | #define MAX_NODENAME_LEN 31 |
126 | |
127 | /* Live trees */ |
128 | struct label { |
129 | char *label; |
130 | struct label *next; |
131 | }; |
132 | |
133 | struct property { |
134 | char *name; |
135 | struct data val; |
136 | |
137 | struct property *next; |
138 | |
139 | struct label *labels; |
140 | }; |
141 | |
142 | struct node { |
143 | char *name; |
144 | struct property *proplist; |
145 | struct node *children; |
146 | |
147 | struct node *parent; |
148 | struct node *next_sibling; |
149 | |
150 | char *fullpath; |
151 | int basenamelen; |
152 | |
153 | cell_t phandle; |
154 | int addr_cells, size_cells; |
155 | |
156 | struct label *labels; |
157 | }; |
158 | |
159 | #define for_each_label(l0, l) \ |
160 | for ((l) = (l0); (l); (l) = (l)->next) |
161 | |
162 | #define for_each_property(n, p) \ |
163 | for ((p) = (n)->proplist; (p); (p) = (p)->next) |
164 | |
165 | #define for_each_child(n, c) \ |
166 | for ((c) = (n)->children; (c); (c) = (c)->next_sibling) |
167 | |
168 | void add_label(struct label **labels, char *label); |
169 | |
170 | struct property *build_property(char *name, struct data val); |
171 | struct property *chain_property(struct property *first, struct property *list); |
172 | struct property *reverse_properties(struct property *first); |
173 | |
174 | struct node *build_node(struct property *proplist, struct node *children); |
175 | struct node *name_node(struct node *node, char *name); |
176 | struct node *chain_node(struct node *first, struct node *list); |
177 | struct node *merge_nodes(struct node *old_node, struct node *new_node); |
178 | |
179 | void add_property(struct node *node, struct property *prop); |
180 | void add_child(struct node *parent, struct node *child); |
181 | |
182 | const char *get_unitname(struct node *node); |
183 | struct property *get_property(struct node *node, const char *propname); |
184 | cell_t propval_cell(struct property *prop); |
185 | struct property *get_property_by_label(struct node *tree, const char *label, |
186 | struct node **node); |
187 | struct marker *get_marker_label(struct node *tree, const char *label, |
188 | struct node **node, struct property **prop); |
189 | struct node *get_subnode(struct node *node, const char *nodename); |
190 | struct node *get_node_by_path(struct node *tree, const char *path); |
191 | struct node *get_node_by_label(struct node *tree, const char *label); |
192 | struct node *get_node_by_phandle(struct node *tree, cell_t phandle); |
193 | struct node *get_node_by_ref(struct node *tree, const char *ref); |
194 | cell_t get_node_phandle(struct node *root, struct node *node); |
195 | |
196 | uint32_t guess_boot_cpuid(struct node *tree); |
197 | |
198 | /* Boot info (tree plus memreserve information */ |
199 | |
200 | struct reserve_info { |
201 | struct fdt_reserve_entry re; |
202 | |
203 | struct reserve_info *next; |
204 | |
205 | struct label *labels; |
206 | }; |
207 | |
208 | struct reserve_info *build_reserve_entry(uint64_t start, uint64_t len); |
209 | struct reserve_info *chain_reserve_entry(struct reserve_info *first, |
210 | struct reserve_info *list); |
211 | struct reserve_info *add_reserve_entry(struct reserve_info *list, |
212 | struct reserve_info *new); |
213 | |
214 | |
215 | struct boot_info { |
216 | struct reserve_info *reservelist; |
217 | struct node *dt; /* the device tree */ |
218 | uint32_t boot_cpuid_phys; |
219 | }; |
220 | |
221 | struct boot_info *build_boot_info(struct reserve_info *reservelist, |
222 | struct node *tree, uint32_t boot_cpuid_phys); |
223 | void sort_tree(struct boot_info *bi); |
224 | |
225 | /* Checks */ |
226 | |
227 | void process_checks(int force, struct boot_info *bi); |
228 | |
229 | /* Flattened trees */ |
230 | |
231 | void dt_to_blob(FILE *f, struct boot_info *bi, int version); |
232 | void dt_to_asm(FILE *f, struct boot_info *bi, int version); |
233 | |
234 | struct boot_info *dt_from_blob(const char *fname); |
235 | |
236 | /* Tree source */ |
237 | |
238 | void dt_to_source(FILE *f, struct boot_info *bi); |
239 | struct boot_info *dt_from_source(const char *f); |
240 | |
241 | /* FS trees */ |
242 | |
243 | struct boot_info *dt_from_fs(const char *dirname); |
244 | |
245 | #endif /* _DTC_H */ |
246 |
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Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
v2.6.34-rc6
v2.6.34-rc7
v3.9