dtc/libfdt/fdt_ro.c

58 static int _fdt_nodename_eq(const void *fdt, int offset,
61 	const char *p = fdt_offset_ptr(fdt, offset + FDT_TAGSIZE, len+1);
94 	int offset;
96 	for (offset = fdt_next_node(fdt, -1, NULL);;
97 	     offset = fdt_next_node(fdt, offset, NULL)) {
100 		if (offset == -FDT_ERR_NOTFOUND)
103 		if (offset < 0)
106 		phandle = fdt_get_phandle(fdt, offset);
134 static int _nextprop(const void *fdt, int offset)
140 		tag = fdt_next_tag(fdt, offset, &nextoffset);
150 			return offset;
152 		offset = nextoffset;
158 int fdt_subnode_offset_namelen(const void *fdt, int offset,
166 	     (offset >= 0) && (depth >= 0);
167 	     offset = fdt_next_node(fdt, offset, &depth))
169 		    && _fdt_nodename_eq(fdt, offset, name, namelen))
170 			return offset;
174 	return offset; /* error */
187 	int offset = 0;
201 		offset = fdt_path_offset(fdt, p);
212 				return offset;
218 		offset = fdt_subnode_offset_namelen(fdt, offset, p, q-p);
219 		if (offset < 0)
220 			return offset;
225 	return offset;
255 	int offset;
257 	if ((offset = _fdt_check_node_offset(fdt, nodeoffset)) < 0)
258 		return offset;
260 	return _nextprop(fdt, offset);
263 int fdt_next_property_offset(const void *fdt, int offset)
265 	if ((offset = _fdt_check_prop_offset(fdt, offset)) < 0)
266 		return offset;
268 	return _nextprop(fdt, offset);
272 						      int offset,
278 	if ((err = _fdt_check_prop_offset(fdt, offset)) < 0) {
284 	prop = _fdt_offset_ptr(fdt, offset);
293 						    int offset,
297 	for (offset = fdt_first_property_offset(fdt, offset);
298 	     (offset >= 0);
299 	     (offset = fdt_next_property_offset(fdt, offset))) {
302 		if (!(prop = fdt_get_property_by_offset(fdt, offset, lenp))) {
303 			offset = -FDT_ERR_INTERNAL;
312 		*lenp = offset;
336 const void *fdt_getprop_by_offset(const void *fdt, int offset,
341 	prop = fdt_get_property_by_offset(fdt, offset, lenp);
392 	int offset, depth, namelen;
400 	for (offset = 0, depth = 0;
401 	     (offset >= 0) && (offset <= nodeoffset);
402 	     offset = fdt_next_node(fdt, offset, &depth)) {
411 			name = fdt_get_name(fdt, offset, &namelen);
422 		if (offset == nodeoffset) {
433 	if ((offset == -FDT_ERR_NOTFOUND) || (offset >= 0))
435 	else if (offset == -FDT_ERR_BADOFFSET)
438 	return offset; /* error from fdt_next_node() */
444 	int offset, depth;
452 	for (offset = 0, depth = 0;
453 	     (offset >= 0) && (offset <= nodeoffset);
454 	     offset = fdt_next_node(fdt, offset, &depth)) {
456 			supernodeoffset = offset;
458 		if (offset == nodeoffset) {
469 	if ((offset == -FDT_ERR_NOTFOUND) || (offset >= 0))
471 	else if (offset == -FDT_ERR_BADOFFSET)
474 	return offset; /* error from fdt_next_node() */
502 	int offset;
513 	for (offset = fdt_next_node(fdt, startoffset, NULL);
514 	     offset >= 0;
515 	     offset = fdt_next_node(fdt, offset, NULL)) {
516 		val = fdt_getprop(fdt, offset, propname, &len);
519 			return offset;
522 	return offset; /* error from fdt_next_node() */
527 	int offset;
540 	for (offset = fdt_next_node(fdt, -1, NULL);
541 	     offset >= 0;
542 	     offset = fdt_next_node(fdt, offset, NULL)) {
543 		if (fdt_get_phandle(fdt, offset) == phandle)
544 			return offset;
547 	return offset; /* error from fdt_next_node() */
683 	int offset, err;
692 	for (offset = fdt_next_node(fdt, startoffset, NULL);
693 	     offset >= 0;
694 	     offset = fdt_next_node(fdt, offset, NULL)) {
695 		err = fdt_node_check_compatible(fdt, offset, compatible);
699 			return offset;
702 	return offset; /* error from fdt_next_node() */