| 1 | /*␊ |
| 2 | * Copyright (c) 2005 Apple Computer, Inc. All rights reserved.␊ |
| 3 | *␊ |
| 4 | * Portions Copyright (c) 1999-2003 Apple Computer, Inc. All Rights␊ |
| 5 | * Reserved. This file contains Original Code and/or Modifications of␊ |
| 6 | * Original Code as defined in and that are subject to the Apple Public␊ |
| 7 | * Source License Version 2.0 (the "License"). You may not use this file␊ |
| 8 | * except in compliance with the License. Please obtain a copy of the␊ |
| 9 | * License at http://www.apple.com/publicsource and read it before using␊ |
| 10 | * this file.␊ |
| 11 | * ␊ |
| 12 | * The Original Code and all software distributed under the License are␊ |
| 13 | * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER␊ |
| 14 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,␊ |
| 15 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,␊ |
| 16 | * FITNESS FOR A PARTICULAR PURPOSE OR NON- INFRINGEMENT. Please see the␊ |
| 17 | * License for the specific language governing rights and limitations␊ |
| 18 | * under the License.␊ |
| 19 | * ␊ |
| 20 | */␊ |
| 21 | ␊ |
| 22 | #if 1␊ |
| 23 | /*␊ |
| 24 | ␊ |
| 25 | Structures for a Flattened Device Tree ␊ |
| 26 | */␊ |
| 27 | ␊ |
| 28 | #define kPropNameLength 32␊ |
| 29 | ␊ |
| 30 | typedef struct DeviceTreeNodeProperty {␊ |
| 31 | ␉char name[kPropNameLength]; // NUL terminated property name␊ |
| 32 | ␉unsigned long length; // Length (bytes) of folloing prop value␊ |
| 33 | // unsigned long value[1]; // Variable length value of property␊ |
| 34 | // Padded to a multiple of a longword?␊ |
| 35 | } DeviceTreeNodeProperty;␊ |
| 36 | ␊ |
| 37 | typedef struct OpaqueDTEntry {␊ |
| 38 | ␉unsigned long nProperties; // Number of props[] elements (0 => end)␊ |
| 39 | ␉unsigned long nChildren; // Number of children[] elements␊ |
| 40 | // DeviceTreeNodeProperty props[];// array size == nProperties␊ |
| 41 | // DeviceTreeNode children[]; // array size == nChildren␊ |
| 42 | } DeviceTreeNode;␊ |
| 43 | ␊ |
| 44 | typedef char DTPropertyNameBuf[32];␊ |
| 45 | ␊ |
| 46 | // Entry Name Definitions (Entry Names are C-Strings).␊ |
| 47 | enum {␊ |
| 48 | kDTMaxEntryNameLength = 31 /* Max length of a C-String Entry Name (terminator not included) */␊ |
| 49 | };␊ |
| 50 | ␊ |
| 51 | /* length of DTEntryNameBuf = kDTMaxEntryNameLength +1*/␊ |
| 52 | typedef char DTEntryNameBuf[32];␊ |
| 53 | #endif␊ |
| 54 | ␊ |
| 55 | #include "libsaio.h"␊ |
| 56 | #include "device_tree.h"␊ |
| 57 | ␊ |
| 58 | #if DEBUG␊ |
| 59 | #define DPRINTF(args...) printf(args)␊ |
| 60 | void␊ |
| 61 | DT__PrintTree(Node *node);␊ |
| 62 | #else␊ |
| 63 | #define DPRINTF(args...)␊ |
| 64 | #endif␊ |
| 65 | ␊ |
| 66 | ␊ |
| 67 | #define RoundToLong(x)␉(((x) + 3) & ~3)␊ |
| 68 | ␊ |
| 69 | static struct _DTSizeInfo {␊ |
| 70 | ␉uint32_t␉numNodes;␊ |
| 71 | ␉uint32_t␉numProperties;␊ |
| 72 | ␉uint32_t␉totalPropertySize;␊ |
| 73 | } DTInfo;␊ |
| 74 | ␊ |
| 75 | #define kAllocSize 4096␊ |
| 76 | ␊ |
| 77 | static Node *rootNode;␊ |
| 78 | ␊ |
| 79 | static Node *freeNodes, *allocedNodes;␊ |
| 80 | static Property *freeProperties, *allocedProperties;␊ |
| 81 | ␊ |
| 82 | ␊ |
| 83 | //==============================================================================␊ |
| 84 | ␊ |
| 85 | Property *DT__AddProperty(Node *node, const char *name, uint32_t length, void *value)␊ |
| 86 | {␊ |
| 87 | ␉Property *prop;␊ |
| 88 | ␊ |
| 89 | ␉DPRINTF("DT__AddProperty([Node '%s'], '%s', %d, 0x%X)\n", DT__GetName(node), name, length, value);␊ |
| 90 | ␊ |
| 91 | ␉if (freeProperties == NULL) {␊ |
| 92 | ␉␉void *buf = malloc(kAllocSize);␊ |
| 93 | ␉␉int i;␊ |
| 94 | ␊ |
| 95 | ␉␉DPRINTF("DT__AddProperty: Allocating more free properties\n");␊ |
| 96 | ␊ |
| 97 | ␉␉if (buf == 0) {␊ |
| 98 | ␉␉␉return 0;␊ |
| 99 | ␉␉}␊ |
| 100 | ␊ |
| 101 | ␉␉bzero(buf, kAllocSize);␊ |
| 102 | ␉␉// Use the first property to record the allocated buffer␊ |
| 103 | ␉␉// for later freeing.␊ |
| 104 | ␉␉prop = (Property *)buf;␊ |
| 105 | ␉␉prop->next = allocedProperties;␊ |
| 106 | ␉␉allocedProperties = prop;␊ |
| 107 | ␉␉prop->value = buf;␊ |
| 108 | ␉␉prop++;␊ |
| 109 | ␊ |
| 110 | ␉␉for (i = 1; i < (kAllocSize / sizeof(Property)); i++) {␊ |
| 111 | ␉␉␉prop->next = freeProperties;␊ |
| 112 | ␉␉␉freeProperties = prop;␊ |
| 113 | ␉␉␉prop++;␊ |
| 114 | ␉␉}␊ |
| 115 | ␉}␊ |
| 116 | ␊ |
| 117 | ␉prop = freeProperties;␊ |
| 118 | ␉freeProperties = prop->next;␊ |
| 119 | ␊ |
| 120 | ␉prop->name = name;␊ |
| 121 | ␉prop->length = length;␊ |
| 122 | ␉prop->value = value;␊ |
| 123 | ␊ |
| 124 | ␉// Always add to end of list␊ |
| 125 | ␉if (node->properties == 0) {␊ |
| 126 | ␉␉node->properties = prop;␊ |
| 127 | ␉} else {␊ |
| 128 | ␉␉node->last_prop->next = prop;␊ |
| 129 | ␉}␊ |
| 130 | ␊ |
| 131 | ␉node->last_prop = prop;␊ |
| 132 | ␉prop->next = 0;␊ |
| 133 | ␊ |
| 134 | ␉DPRINTF("Done [0x%x]\n", prop);␊ |
| 135 | ␊ |
| 136 | ␉DTInfo.numProperties++;␊ |
| 137 | ␉DTInfo.totalPropertySize += RoundToLong(length);␊ |
| 138 | ␊ |
| 139 | ␉return prop;␊ |
| 140 | }␊ |
| 141 | ␊ |
| 142 | ␊ |
| 143 | //==============================================================================␊ |
| 144 | ␊ |
| 145 | Node *DT__AddChild(Node *parent, const char *name)␊ |
| 146 | {␊ |
| 147 | ␉Node *node;␊ |
| 148 | ␊ |
| 149 | ␉if (freeNodes == NULL)␊ |
| 150 | ␉{␊ |
| 151 | ␉␉void *buf = malloc(kAllocSize);␊ |
| 152 | ␊ |
| 153 | ␉␉if (buf == 0)␊ |
| 154 | ␉␉{␊ |
| 155 | ␉␉␉return 0;␊ |
| 156 | ␉␉}␊ |
| 157 | ␊ |
| 158 | ␉␉int i;␊ |
| 159 | ␊ |
| 160 | ␉␉DPRINTF("DT__AddChild: Allocating more free nodes\n");␊ |
| 161 | ␊ |
| 162 | ␉␉bzero(buf, kAllocSize);␊ |
| 163 | ␉␉node = (Node *)buf;␊ |
| 164 | ␊ |
| 165 | ␉␉// Use the first node to record the allocated buffer for later freeing.␊ |
| 166 | ␉␉node->next = allocedNodes;␊ |
| 167 | ␉␉allocedNodes = node;␊ |
| 168 | ␉␉node->children = (Node *)buf;␊ |
| 169 | ␉␉node++;␊ |
| 170 | ␊ |
| 171 | ␉␉for (i = 1; i < (kAllocSize / sizeof(Node)); i++)␊ |
| 172 | ␉␉{␊ |
| 173 | ␉␉␉node->next = freeNodes;␊ |
| 174 | ␉␉␉freeNodes = node;␊ |
| 175 | ␉␉␉node++;␊ |
| 176 | ␉␉}␊ |
| 177 | ␉}␊ |
| 178 | ␊ |
| 179 | ␉DPRINTF("DT__AddChild(0x%x, '%s')\n", parent, name);␊ |
| 180 | ␊ |
| 181 | ␉node = freeNodes;␊ |
| 182 | ␉freeNodes = node->next;␊ |
| 183 | ␊ |
| 184 | ␉DPRINTF("DT__AddChild: Got free node 0x%x\n", node);␊ |
| 185 | ␉DPRINTF("DT__AddChild: prop = 0x%x, children = 0x%x, next = 0x%x\n", node->properties, node->children, node->next);␊ |
| 186 | ␊ |
| 187 | ␉if (parent == NULL)␊ |
| 188 | ␉{␊ |
| 189 | ␉␉rootNode = node;␊ |
| 190 | ␉␉node->next = 0;␊ |
| 191 | ␉}␊ |
| 192 | ␉else␊ |
| 193 | ␉{␊ |
| 194 | ␉␉node->next = parent->children;␊ |
| 195 | ␉␉parent->children = node;␊ |
| 196 | ␉}␊ |
| 197 | ␊ |
| 198 | ␉DTInfo.numNodes++;␊ |
| 199 | ␉DT__AddProperty(node, "name", strlen(name) + 1, (void *) name);␊ |
| 200 | ␊ |
| 201 | ␉return node;␊ |
| 202 | }␊ |
| 203 | ␊ |
| 204 | ␊ |
| 205 | //==============================================================================␊ |
| 206 | ␊ |
| 207 | void DT__FreeProperty(Property *prop)␊ |
| 208 | {␊ |
| 209 | ␉prop->next = freeProperties;␊ |
| 210 | ␉freeProperties = prop;␊ |
| 211 | }␊ |
| 212 | ␊ |
| 213 | //==============================================================================␊ |
| 214 | ␊ |
| 215 | void DT__FreeNode(Node *node)␊ |
| 216 | {␊ |
| 217 | ␉node->next = freeNodes;␊ |
| 218 | ␉freeNodes = node;␊ |
| 219 | }␊ |
| 220 | ␊ |
| 221 | //==============================================================================␊ |
| 222 | ␊ |
| 223 | void DT__Initialize(void)␊ |
| 224 | {␊ |
| 225 | ␉DPRINTF("DT__Initialize\n");␊ |
| 226 | ␊ |
| 227 | ␉freeNodes = 0;␊ |
| 228 | ␉allocedNodes = 0;␊ |
| 229 | ␉freeProperties = 0;␊ |
| 230 | ␉allocedProperties = 0;␊ |
| 231 | ␊ |
| 232 | ␉DTInfo.numNodes = 0;␊ |
| 233 | ␉DTInfo.numProperties = 0;␊ |
| 234 | ␉DTInfo.totalPropertySize = 0;␊ |
| 235 | ␊ |
| 236 | ␉rootNode = DT__AddChild(NULL, "/");␊ |
| 237 | ␉DPRINTF("DT__Initialize: done\n");␊ |
| 238 | }␊ |
| 239 | ␊ |
| 240 | //==============================================================================␊ |
| 241 | /*␊ |
| 242 | * Free up memory used by in-memory representation of device tree.␊ |
| 243 | */␊ |
| 244 | void DT__Finalize(void)␊ |
| 245 | {␊ |
| 246 | ␉Node *node;␊ |
| 247 | ␉Property *prop;␊ |
| 248 | ␊ |
| 249 | ␉DPRINTF("DT__Finalize\n");␊ |
| 250 | ␊ |
| 251 | ␉for (prop = allocedProperties; prop != NULL; prop = prop->next)␊ |
| 252 | ␉{␊ |
| 253 | ␉␉free((void *)(prop->name));␊ |
| 254 | ␉␉free(prop->value);␊ |
| 255 | ␉}␊ |
| 256 | ␊ |
| 257 | ␉allocedProperties = NULL;␊ |
| 258 | ␉freeProperties = NULL;␊ |
| 259 | ␊ |
| 260 | ␉for (node = allocedNodes; node != NULL; node = node->next)␊ |
| 261 | ␉{␊ |
| 262 | ␉␉free((void *)node->children);␊ |
| 263 | ␉}␊ |
| 264 | ␊ |
| 265 | ␉allocedNodes = NULL;␊ |
| 266 | ␉freeNodes = NULL;␊ |
| 267 | ␉rootNode = NULL;␊ |
| 268 | ␊ |
| 269 | ␉// XXX leaks any created strings␊ |
| 270 | ␉DTInfo.numNodes = 0;␊ |
| 271 | ␉DTInfo.numProperties = 0;␊ |
| 272 | ␉DTInfo.totalPropertySize = 0;␊ |
| 273 | }␊ |
| 274 | ␊ |
| 275 | //==============================================================================␊ |
| 276 | ␊ |
| 277 | static void *FlattenNodes(Node *node, void *buffer)␊ |
| 278 | {␊ |
| 279 | ␉Property *prop;␊ |
| 280 | ␉DeviceTreeNode *flatNode;␊ |
| 281 | ␉DeviceTreeNodeProperty *flatProp;␊ |
| 282 | ␉int count;␊ |
| 283 | ␊ |
| 284 | ␉if (node == 0) {␊ |
| 285 | ␉␉return buffer;␊ |
| 286 | ␉}␊ |
| 287 | ␊ |
| 288 | ␉flatNode = (DeviceTreeNode *)buffer;␊ |
| 289 | ␉buffer += sizeof(DeviceTreeNode);␊ |
| 290 | ␊ |
| 291 | ␉for (count = 0, prop = node->properties; prop != 0; count++, prop = prop->next)␊ |
| 292 | ␉{␊ |
| 293 | ␉␉flatProp = (DeviceTreeNodeProperty *)buffer;␊ |
| 294 | ␉␉strncpy(flatProp->name, prop->name, kPropNameLength);␊ |
| 295 | ␉␉flatProp->length = prop->length;␊ |
| 296 | ␉␉buffer += sizeof(DeviceTreeNodeProperty);␊ |
| 297 | ␉␉bcopy(prop->value, buffer, prop->length);␊ |
| 298 | ␉␉buffer += RoundToLong(prop->length);␊ |
| 299 | ␉}␊ |
| 300 | ␊ |
| 301 | ␉flatNode->nProperties = count;␊ |
| 302 | ␊ |
| 303 | ␉for (count = 0, node = node->children; node != 0; count++, node = node->next)␊ |
| 304 | ␉{␊ |
| 305 | ␉␉buffer = FlattenNodes(node, buffer);␊ |
| 306 | ␉}␊ |
| 307 | ␊ |
| 308 | ␉flatNode->nChildren = count;␊ |
| 309 | ␊ |
| 310 | ␉return buffer;␊ |
| 311 | }␊ |
| 312 | ␊ |
| 313 | ␊ |
| 314 | /*==============================================================================␊ |
| 315 | * Flatten the in-memory representation of the device tree into a binary DT block.␊ |
| 316 | * To get the buffer size needed, call with result = 0.␊ |
| 317 | * To have a buffer allocated for you, call with *result = 0.␊ |
| 318 | * To use your own buffer, call with *result = &buffer.␊ |
| 319 | */␊ |
| 320 | ␊ |
| 321 | void DT__FlattenDeviceTree(void **buffer_p, uint32_t *length)␊ |
| 322 | {␊ |
| 323 | ␉uint32_t totalSize;␊ |
| 324 | ␉void * buf;␊ |
| 325 | ␊ |
| 326 | ␉DPRINTF("DT__FlattenDeviceTree(0x%x, 0x%x)\n", buffer_p, length);␊ |
| 327 | ␊ |
| 328 | #if DEBUG␊ |
| 329 | ␉if (buffer_p) {␊ |
| 330 | ␉␉DT__PrintTree(rootNode);␊ |
| 331 | ␉}␊ |
| 332 | #endif␊ |
| 333 | ␊ |
| 334 | ␉totalSize = DTInfo.numNodes * sizeof(DeviceTreeNode) + ␊ |
| 335 | ␉␉DTInfo.numProperties * sizeof(DeviceTreeNodeProperty) +␊ |
| 336 | ␉␉DTInfo.totalPropertySize;␊ |
| 337 | ␊ |
| 338 | ␉DPRINTF("Total size 0x%x\n", totalSize);␊ |
| 339 | ␊ |
| 340 | ␉if (buffer_p != 0)␊ |
| 341 | ␉{␊ |
| 342 | ␉␉if (totalSize == 0)␊ |
| 343 | ␉␉{␊ |
| 344 | ␉␉␉buf = 0;␊ |
| 345 | ␉␉}␊ |
| 346 | ␉␉else␊ |
| 347 | ␉␉{␊ |
| 348 | ␉␉␉if (*buffer_p == 0)␊ |
| 349 | ␉␉␉{␊ |
| 350 | ␉␉␉␉buf = malloc(totalSize);␊ |
| 351 | ␉␉␉}␊ |
| 352 | ␉␉␉else␊ |
| 353 | ␉␉␉{␊ |
| 354 | ␉␉␉␉buf = *buffer_p;␊ |
| 355 | ␉␉␉}␊ |
| 356 | ␉␉␉if (!buf)␊ |
| 357 | ␉␉␉{␊ |
| 358 | ␉␉␉␉*length = 0;␊ |
| 359 | ␉␉␉␉return;␊ |
| 360 | ␉␉␉}␊ |
| 361 | ␊ |
| 362 | ␉␉␉bzero(buf, totalSize);␊ |
| 363 | ␊ |
| 364 | ␉␉␉FlattenNodes(rootNode, buf);␊ |
| 365 | ␉␉}␊ |
| 366 | ␊ |
| 367 | ␉␉*buffer_p = buf;␊ |
| 368 | ␉}␊ |
| 369 | ␊ |
| 370 | ␉if (length)␊ |
| 371 | ␉{␊ |
| 372 | ␉␉*length = totalSize;␊ |
| 373 | ␉}␊ |
| 374 | }␊ |
| 375 | ␊ |
| 376 | //==============================================================================␊ |
| 377 | ␊ |
| 378 | char *DT__GetName(Node *node)␊ |
| 379 | {␊ |
| 380 | ␉Property *prop;␊ |
| 381 | ␊ |
| 382 | ␉//DPRINTF("DT__GetName(0x%x)\n", node);␊ |
| 383 | ␉//DPRINTF("Node properties = 0x%x\n", node->properties);␊ |
| 384 | ␉for (prop = node->properties; prop; prop = prop->next)␊ |
| 385 | ␉{␊ |
| 386 | ␉␉//DPRINTF("Prop '%s'\n", prop->name);␊ |
| 387 | ␉␉if (strncmp(prop->name, "name", sizeof("name")) == 0)␊ |
| 388 | ␉␉{␊ |
| 389 | ␉␉␉return prop->value;␊ |
| 390 | ␉␉}␊ |
| 391 | ␉}␊ |
| 392 | ␊ |
| 393 | ␉//DPRINTF("DT__GetName returns 0\n");␊ |
| 394 | ␉return "(null)";␊ |
| 395 | }␊ |
| 396 | ␊ |
| 397 | //==============================================================================␊ |
| 398 | // Bungo␊ |
| 399 | Property *DT__GetProperty(Node *node, const char *name)␊ |
| 400 | {␊ |
| 401 | ␉Property *prop;␊ |
| 402 | ␊ |
| 403 | ␉for (prop = node->properties; prop; prop = prop->next)␊ |
| 404 | ␉{␊ |
| 405 | ␉␉if (strcmp(prop->name, name) == 0)␊ |
| 406 | ␉␉{␊ |
| 407 | ␉␉␉return prop;␊ |
| 408 | ␉␉}␊ |
| 409 | ␉}␊ |
| 410 | ␊ |
| 411 | ␉return NULL;␊ |
| 412 | }␊ |
| 413 | ␊ |
| 414 | //==============================================================================␊ |
| 415 | ␊ |
| 416 | Node *DT__FindNode(const char *path, bool createIfMissing)␊ |
| 417 | {␊ |
| 418 | ␉Node *node, *child;␊ |
| 419 | ␉DTPropertyNameBuf nameBuf;␊ |
| 420 | ␉char *bp;␊ |
| 421 | ␉int i;␊ |
| 422 | ␊ |
| 423 | ␉DPRINTF("DT__FindNode('%s', %d)\n", path, createIfMissing);␊ |
| 424 | ␊ |
| 425 | ␉// Start at root␊ |
| 426 | ␉node = rootNode;␊ |
| 427 | ␊ |
| 428 | ␉DPRINTF("DT__FindNode: root = 0x%x\n", rootNode);␊ |
| 429 | ␊ |
| 430 | ␉while (node)␊ |
| 431 | ␉{␊ |
| 432 | ␉␉// Skip leading slash(es)␊ |
| 433 | ␉␉while (*path == '/')␊ |
| 434 | ␉␉{␊ |
| 435 | ␉␉␉path++;␊ |
| 436 | ␉␉}␊ |
| 437 | ␊ |
| 438 | ␉␉for (i = 0, bp = nameBuf; ++i < kDTMaxEntryNameLength && *path && *path != '/'; bp++, path++)␊ |
| 439 | ␉␉{␊ |
| 440 | ␉␉␉*bp = *path;␊ |
| 441 | ␉␉}␊ |
| 442 | ␊ |
| 443 | ␉␉*bp = '\0';␊ |
| 444 | ␊ |
| 445 | ␉␉if (nameBuf[0] == '\0')␊ |
| 446 | ␉␉{␊ |
| 447 | ␉␉␉// last path entry␊ |
| 448 | ␉␉␉break;␊ |
| 449 | ␉␉}␊ |
| 450 | ␊ |
| 451 | ␉␉DPRINTF("DT__FindNode: Node '%s'\n", nameBuf);␊ |
| 452 | ␊ |
| 453 | ␉␉for (child = node->children; child != 0; child = child->next)␊ |
| 454 | ␉␉{␊ |
| 455 | ␉␉␉DPRINTF("DT__FindNode: Child 0x%x\n", child);␊ |
| 456 | ␊ |
| 457 | ␉␉␉if (strcmp(DT__GetName(child), nameBuf) == 0)␊ |
| 458 | ␉␉␉{␊ |
| 459 | ␉␉␉␉break;␊ |
| 460 | ␉␉␉}␊ |
| 461 | ␉␉}␊ |
| 462 | ␊ |
| 463 | ␉␉if (child == 0 && createIfMissing)␊ |
| 464 | ␉␉{␊ |
| 465 | ␉␉␉char *str = malloc(strlen(nameBuf) + 1);␊ |
| 466 | ␉␉␉// XXX this will leak␊ |
| 467 | ␉␉␉strcpy(str, nameBuf);␊ |
| 468 | ␊ |
| 469 | ␉␉␉child = DT__AddChild(node, str);␊ |
| 470 | ␉␉␉DPRINTF("DT__FindNode: Creating node: %s\n", str);␊ |
| 471 | ␉␉}␊ |
| 472 | ␊ |
| 473 | ␉␉node = child;␊ |
| 474 | ␉}␊ |
| 475 | ␊ |
| 476 | ␉return node;␊ |
| 477 | }␊ |
| 478 | ␊ |
| 479 | #if DEBUG␊ |
| 480 | ␊ |
| 481 | //==============================================================================␊ |
| 482 | ␊ |
| 483 | void DT__PrintNode(Node *node, int level)␊ |
| 484 | {␊ |
| 485 | ␉char spaces[10], *cp = spaces;␊ |
| 486 | ␉Property *prop;␊ |
| 487 | ␊ |
| 488 | ␉if (level > 9)␊ |
| 489 | ␉{␊ |
| 490 | ␉␉level = 9;␊ |
| 491 | ␉}␊ |
| 492 | ␊ |
| 493 | ␉while (level--)␊ |
| 494 | ␉{␊ |
| 495 | ␉␉*cp++ = ' ';␊ |
| 496 | ␉}␊ |
| 497 | ␊ |
| 498 | ␉*cp = '\0';␊ |
| 499 | ␊ |
| 500 | ␉printf("%s===Node===\n", spaces);␊ |
| 501 | ␊ |
| 502 | ␉for (prop = node->properties; prop; prop = prop->next)␊ |
| 503 | ␉{␊ |
| 504 | ␉␉char c = *((char *)prop->value);␊ |
| 505 | ␉␉if (prop->length < 64 && (strncmp(prop->name, "name", sizeof("name") ) == 0 || (c >= '0' && c <= '9') || (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || c == '_'))␊ |
| 506 | ␉␉{␊ |
| 507 | ␉␉␉printf("%s Property '%s' [%d] = '%s'\n", spaces, prop->name, prop->length, prop->value);␊ |
| 508 | ␉␉}␊ |
| 509 | ␉␉else␊ |
| 510 | ␉␉{␊ |
| 511 | ␉␉␉printf("%s Property '%s' [%d] = (data)\n", spaces, prop->name, prop->length);␊ |
| 512 | ␉␉}␊ |
| 513 | ␉}␊ |
| 514 | ␊ |
| 515 | ␉printf("%s==========\n", spaces);␊ |
| 516 | }␊ |
| 517 | ␊ |
| 518 | //==============================================================================␊ |
| 519 | ␊ |
| 520 | static void _PrintTree(Node *node, int level)␊ |
| 521 | {␊ |
| 522 | ␉DT__PrintNode(node, level);␊ |
| 523 | ␊ |
| 524 | ␉level++;␊ |
| 525 | ␊ |
| 526 | ␉for (node = node->children; node; node = node->next)␊ |
| 527 | ␉{␊ |
| 528 | ␉␉_PrintTree(node, level);␊ |
| 529 | ␉}␊ |
| 530 | }␊ |
| 531 | ␊ |
| 532 | //==============================================================================␊ |
| 533 | ␊ |
| 534 | void DT__PrintTree(Node *node)␊ |
| 535 | {␊ |
| 536 | ␉if (node == 0) node = rootNode;␊ |
| 537 | ␉_PrintTree(node, 0);␊ |
| 538 | }␊ |
| 539 | ␊ |
| 540 | //==============================================================================␊ |
| 541 | ␊ |
| 542 | void DT__PrintFlattenedNode(DTEntry entry, int level)␊ |
| 543 | {␊ |
| 544 | ␉char spaces[10], *cp = spaces;␊ |
| 545 | ␉DTPropertyIterator␉ propIter;␊ |
| 546 | ␉char *name;␊ |
| 547 | ␉void *prop;␊ |
| 548 | ␉int propSize;␊ |
| 549 | ␊ |
| 550 | ␉if (level > 9) level = 9;␊ |
| 551 | ␉while (level--) *cp++ = ' ';␊ |
| 552 | ␉␉*cp = '\0';␊ |
| 553 | ␊ |
| 554 | ␉printf("%s===Entry %p===\n", spaces, entry);␊ |
| 555 | ␉␉if (kSuccess != DTCreatePropertyIterator(entry, &propIter))␊ |
| 556 | ␉␉{␊ |
| 557 | ␉␉␉printf("Couldn't create property iterator\n");␊ |
| 558 | ␉␉␉return;␊ |
| 559 | ␉␉}␊ |
| 560 | ␉␉while( kSuccess == DTIterateProperties( propIter, &name))␊ |
| 561 | ␉␉{␊ |
| 562 | ␉␉␉if( kSuccess != DTGetProperty( entry, name, &prop, &propSize ))␊ |
| 563 | ␉␉␉␉continue;␊ |
| 564 | ␉␉printf("%s Property %s = %s\n", spaces, name, prop);␊ |
| 565 | ␉}␊ |
| 566 | ␉DTDisposePropertyIterator(propIter);␊ |
| 567 | ␊ |
| 568 | ␉printf("%s==========\n", spaces);␊ |
| 569 | }␊ |
| 570 | ␊ |
| 571 | //==============================================================================␊ |
| 572 | ␊ |
| 573 | static void _PrintFlattenedTree(DTEntry entry, int level)␊ |
| 574 | {␊ |
| 575 | ␉DTEntryIterator entryIter;␊ |
| 576 | ␊ |
| 577 | ␉PrintFlattenedNode(entry, level);␊ |
| 578 | ␊ |
| 579 | ␉if (kSuccess != DTCreateEntryIterator(entry, &entryIter))␊ |
| 580 | ␉{␊ |
| 581 | ␉␉printf("Couldn't create entry iterator\n");␊ |
| 582 | ␉␉return;␊ |
| 583 | ␉}␊ |
| 584 | ␉level++;␊ |
| 585 | ␉while (kSuccess == DTIterateEntries( entryIter, &entry ))␊ |
| 586 | ␉{␊ |
| 587 | ␉␉_PrintFlattenedTree(entry, level);␊ |
| 588 | ␉}␊ |
| 589 | ␉DTDisposeEntryIterator(entryIter);␊ |
| 590 | }␊ |
| 591 | ␊ |
| 592 | //==============================================================================␊ |
| 593 | ␊ |
| 594 | void DT__PrintFlattenedTree(DTEntry entry)␊ |
| 595 | {␊ |
| 596 | ␉_PrintFlattenedTree(entry, 0);␊ |
| 597 | }␊ |
| 598 | ␊ |
| 599 | //==============================================================================␊ |
| 600 | ␊ |
| 601 | int main(int argc, char **argv)␊ |
| 602 | {␊ |
| 603 | ␉DTEntry␉␉␉dtEntry;␊ |
| 604 | ␉DTPropertyIterator␉propIter;␊ |
| 605 | ␉DTEntryIterator␉␉entryIter;␊ |
| 606 | ␉void␉␉␉*prop;␊ |
| 607 | ␉int␉␉␉propSize;␊ |
| 608 | ␉char␉␉␉*name;␊ |
| 609 | ␉void␉␉␉*flatTree;␊ |
| 610 | ␉uint32_t␉␉flatSize;␊ |
| 611 | ␊ |
| 612 | ␉Node *node;␊ |
| 613 | ␊ |
| 614 | ␉node = AddChild(NULL, "device-tree");␊ |
| 615 | ␉AddProperty(node, "potato", 4, "foo");␊ |
| 616 | ␉AddProperty(node, "chemistry", 4, "bar");␊ |
| 617 | ␉AddProperty(node, "physics", 4, "baz");␊ |
| 618 | ␊ |
| 619 | ␉node = AddChild(node, "dev");␊ |
| 620 | ␉AddProperty(node, "one", 4, "one");␊ |
| 621 | ␉AddProperty(node, "two", 4, "two");␊ |
| 622 | ␉AddProperty(node, "three", 6, "three");␊ |
| 623 | ␊ |
| 624 | ␉node = AddChild(rootNode, "foo");␊ |
| 625 | ␉AddProperty(node, "aaa", 4, "aab");␊ |
| 626 | ␉AddProperty(node, "bbb", 4, "bbc");␊ |
| 627 | ␉AddProperty(node, "cccc", 6, "ccccd");␊ |
| 628 | ␊ |
| 629 | ␉node = FindNode("/this/is/a/test", 1);␊ |
| 630 | ␉AddProperty(node, "dddd", 12, "abcdefghijk");␊ |
| 631 | ␊ |
| 632 | ␉printf("In-memory tree:\n\n");␊ |
| 633 | ␊ |
| 634 | ␉PrintTree(rootNode);␊ |
| 635 | ␊ |
| 636 | ␉FlattenDeviceTree(&flatTree, &flatSize);␊ |
| 637 | ␊ |
| 638 | ␉printf("Flat tree = %p, size %d\n", flatTree, flatSize);␊ |
| 639 | ␊ |
| 640 | ␉dtEntry = (DTEntry)flatTree;␊ |
| 641 | ␊ |
| 642 | ␉printf("\n\nPrinting flat tree\n\n");␊ |
| 643 | ␊ |
| 644 | ␉DTInit(dtEntry);␊ |
| 645 | ␊ |
| 646 | ␉PrintFlattenedTree((DTEntry)flatTree);␊ |
| 647 | #if 0␊ |
| 648 | ␉printf("=== Entry %p ===\n", dtEntry);␊ |
| 649 | ␉if (kSuccess != DTCreatePropertyIterator(dtEntry, &propIter))␊ |
| 650 | ␉{␊ |
| 651 | ␉␉printf("Couldn't create property iterator\n");␊ |
| 652 | ␉␉return 1;␊ |
| 653 | ␉}␊ |
| 654 | ␉while( kSuccess == DTIterateProperties( propIter, &name))␊ |
| 655 | ␉{␊ |
| 656 | ␉␉if( kSuccess != DTGetProperty( dtEntry, name, &prop, &propSize ))␊ |
| 657 | ␉␉␉continue;␊ |
| 658 | ␉␉printf(" Property %s = %s\n", name, prop);␊ |
| 659 | }␊ |
| 660 | ␉DTDisposePropertyIterator(propIter);␊ |
| 661 | ␉printf("========\n");␊ |
| 662 | ␊ |
| 663 | ␉if (kSuccess != DTCreateEntryIterator(dtEntry, &entryIter))␊ |
| 664 | ␉{␊ |
| 665 | ␉␉printf("Couldn't create entry iterator\n");␊ |
| 666 | ␉␉return 1;␊ |
| 667 | ␉}␊ |
| 668 | ␉while (kSuccess == DTIterateEntries( entryIter, &dtEntry ))␊ |
| 669 | ␉{␊ |
| 670 | ␉␉printf("=== Entry %p ===\n", dtEntry);␊ |
| 671 | ␊ |
| 672 | ␉if (kSuccess != DTCreatePropertyIterator(dtEntry, &propIter))␊ |
| 673 | ␉{␊ |
| 674 | ␉␉printf("Couldn't create property iterator\n");␊ |
| 675 | ␉␉return 1;␊ |
| 676 | ␉}␊ |
| 677 | ␉␉while( kSuccess == DTIterateProperties( propIter, &name))␊ |
| 678 | ␉␉{␊ |
| 679 | ␉␉␉if( kSuccess != DTGetProperty( dtEntry, name, &prop, &propSize ))␊ |
| 680 | ␉␉␉␉continue;␊ |
| 681 | ␉␉␉printf(" Property %s = %s\n", name, prop);␊ |
| 682 | ␉␉}␊ |
| 683 | ␉␉DTDisposePropertyIterator(propIter);␊ |
| 684 | ␉␉printf("========\n");␊ |
| 685 | ␉}␊ |
| 686 | ␉DTDisposeEntryIterator(entryIter);␊ |
| 687 | #endif␊ |
| 688 | ␊ |
| 689 | ␉return 0;␊ |
| 690 | }␊ |
| 691 | ␊ |
| 692 | #endif␊ |
| 693 | ␊ |
| 694 | |
