2 * (C) Copyright Linaro, Ltd. 2018
3 * (C) Copyright Arm Holdings. 2017
4 * (C) Copyright David Gibson <dwg@au1.ibm.com>, IBM Corporation. 2005.
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License as
8 * published by the Free Software Foundation; either version 2 of the
9 * License, or (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
27 char *yaml_error_name[] = {
28 [YAML_NO_ERROR] = "no error",
29 [YAML_MEMORY_ERROR] = "memory error",
30 [YAML_READER_ERROR] = "reader error",
31 [YAML_SCANNER_ERROR] = "scanner error",
32 [YAML_PARSER_ERROR] = "parser error",
33 [YAML_COMPOSER_ERROR] = "composer error",
34 [YAML_WRITER_ERROR] = "writer error",
35 [YAML_EMITTER_ERROR] = "emitter error",
38 #define yaml_emitter_emit_or_die(emitter, event) ( \
40 if (!yaml_emitter_emit(emitter, event)) \
41 die("yaml '%s': %s in %s, line %i\n", \
42 yaml_error_name[(emitter)->error], \
43 (emitter)->problem, __func__, __LINE__); \
46 static void yaml_propval_int(yaml_emitter_t *emitter, struct marker *markers, char *data, int len, int width)
50 int off, start_offset = markers->offset;
53 case 1: tag = "!u8"; break;
54 case 2: tag = "!u16"; break;
55 case 4: tag = "!u32"; break;
56 case 8: tag = "!u64"; break;
58 die("Invalid width %i", width);
60 assert(len % width == 0);
62 yaml_sequence_start_event_initialize(&event, NULL,
63 (yaml_char_t *)tag, width == 4, YAML_FLOW_SEQUENCE_STYLE);
64 yaml_emitter_emit_or_die(emitter, &event);
66 for (off = 0; off < len; off += width) {
69 bool is_phandle = false;
73 sprintf(buf, "0x%"PRIx8, *(uint8_t*)(data + off));
76 sprintf(buf, "0x%"PRIx16, fdt16_to_cpu(*(fdt16_t*)(data + off)));
79 sprintf(buf, "0x%"PRIx32, fdt32_to_cpu(*(fdt32_t*)(data + off)));
82 for_each_marker_of_type(m, REF_PHANDLE) {
83 if (m->offset == (start_offset + off)) {
90 sprintf(buf, "0x%"PRIx64, fdt64_to_cpu(*(fdt64_t*)(data + off)));
95 yaml_scalar_event_initialize(&event, NULL,
96 (yaml_char_t*)"!phandle", (yaml_char_t *)buf,
97 strlen(buf), 0, 0, YAML_PLAIN_SCALAR_STYLE);
99 yaml_scalar_event_initialize(&event, NULL,
100 (yaml_char_t*)YAML_INT_TAG, (yaml_char_t *)buf,
101 strlen(buf), 1, 1, YAML_PLAIN_SCALAR_STYLE);
102 yaml_emitter_emit_or_die(emitter, &event);
105 yaml_sequence_end_event_initialize(&event);
106 yaml_emitter_emit_or_die(emitter, &event);
109 static void yaml_propval_string(yaml_emitter_t *emitter, char *str, int len)
114 assert(str[len-1] == '\0');
116 /* Make sure the entire string is in the lower 7-bit ascii range */
117 for (i = 0; i < len; i++)
118 assert(isascii(str[i]));
120 yaml_scalar_event_initialize(&event, NULL,
121 (yaml_char_t *)YAML_STR_TAG, (yaml_char_t*)str,
122 len-1, 0, 1, YAML_DOUBLE_QUOTED_SCALAR_STYLE);
123 yaml_emitter_emit_or_die(emitter, &event);
126 static void yaml_propval(yaml_emitter_t *emitter, struct property *prop)
129 int len = prop->val.len;
130 struct marker *m = prop->val.markers;
132 /* Emit the property name */
133 yaml_scalar_event_initialize(&event, NULL,
134 (yaml_char_t *)YAML_STR_TAG, (yaml_char_t*)prop->name,
135 strlen(prop->name), 1, 1, YAML_PLAIN_SCALAR_STYLE);
136 yaml_emitter_emit_or_die(emitter, &event);
138 /* Boolean properties are easiest to deal with. Length is zero, so just emit 'true' */
140 yaml_scalar_event_initialize(&event, NULL,
141 (yaml_char_t *)YAML_BOOL_TAG,
142 (yaml_char_t*)"true",
143 strlen("true"), 1, 0, YAML_PLAIN_SCALAR_STYLE);
144 yaml_emitter_emit_or_die(emitter, &event);
149 die("No markers present in property '%s' value\n", prop->name);
151 yaml_sequence_start_event_initialize(&event, NULL,
152 (yaml_char_t *)YAML_SEQ_TAG, 1, YAML_FLOW_SEQUENCE_STYLE);
153 yaml_emitter_emit_or_die(emitter, &event);
157 char *data = &prop->val.val[m->offset];
159 if (m->type < TYPE_UINT8)
162 chunk_len = type_marker_length(m) ? : len;
163 assert(chunk_len > 0);
168 yaml_propval_int(emitter, m, data, chunk_len, 2);
171 yaml_propval_int(emitter, m, data, chunk_len, 4);
174 yaml_propval_int(emitter, m, data, chunk_len, 8);
177 yaml_propval_string(emitter, data, chunk_len);
180 yaml_propval_int(emitter, m, data, chunk_len, 1);
185 yaml_sequence_end_event_initialize(&event);
186 yaml_emitter_emit_or_die(emitter, &event);
190 static void yaml_tree(struct node *tree, yaml_emitter_t *emitter)
192 struct property *prop;
199 yaml_mapping_start_event_initialize(&event, NULL,
200 (yaml_char_t *)YAML_MAP_TAG, 1, YAML_ANY_MAPPING_STYLE);
201 yaml_emitter_emit_or_die(emitter, &event);
203 for_each_property(tree, prop)
204 yaml_propval(emitter, prop);
206 /* Loop over all the children, emitting them into the map */
207 for_each_child(tree, child) {
208 yaml_scalar_event_initialize(&event, NULL,
209 (yaml_char_t *)YAML_STR_TAG, (yaml_char_t*)child->name,
210 strlen(child->name), 1, 0, YAML_PLAIN_SCALAR_STYLE);
211 yaml_emitter_emit_or_die(emitter, &event);
212 yaml_tree(child, emitter);
215 yaml_mapping_end_event_initialize(&event);
216 yaml_emitter_emit_or_die(emitter, &event);
219 void dt_to_yaml(FILE *f, struct dt_info *dti)
221 yaml_emitter_t emitter;
224 yaml_emitter_initialize(&emitter);
225 yaml_emitter_set_output_file(&emitter, f);
226 yaml_stream_start_event_initialize(&event, YAML_UTF8_ENCODING);
227 yaml_emitter_emit_or_die(&emitter, &event);
229 yaml_document_start_event_initialize(&event, NULL, NULL, NULL, 0);
230 yaml_emitter_emit_or_die(&emitter, &event);
232 yaml_sequence_start_event_initialize(&event, NULL, (yaml_char_t *)YAML_SEQ_TAG, 1, YAML_ANY_SEQUENCE_STYLE);
233 yaml_emitter_emit_or_die(&emitter, &event);
235 yaml_tree(dti->dt, &emitter);
237 yaml_sequence_end_event_initialize(&event);
238 yaml_emitter_emit_or_die(&emitter, &event);
240 yaml_document_end_event_initialize(&event, 0);
241 yaml_emitter_emit_or_die(&emitter, &event);
243 yaml_stream_end_event_initialize(&event);
244 yaml_emitter_emit_or_die(&emitter, &event);
246 yaml_emitter_delete(&emitter);