contrib/libfdt/fdt_ro.c

58 static int fdt_nodename_eq_(const void *fdt, int offset,
62 	const char *p = fdt_get_name(fdt, offset, &olen);
95 	int offset;
97 	for (offset = fdt_next_node(fdt, -1, NULL);;
98 	     offset = fdt_next_node(fdt, offset, NULL)) {
101 		if (offset == -FDT_ERR_NOTFOUND)
104 		if (offset < 0)
107 		phandle = fdt_get_phandle(fdt, offset);
135 static int nextprop_(const void *fdt, int offset)
141 		tag = fdt_next_tag(fdt, offset, &nextoffset);
151 			return offset;
153 		offset = nextoffset;
159 int fdt_subnode_offset_namelen(const void *fdt, int offset,
167 	     (offset >= 0) && (depth >= 0);
168 	     offset = fdt_next_node(fdt, offset, &depth))
170 		    && fdt_nodename_eq_(fdt, offset, name, namelen))
171 			return offset;
175 	return offset; /* error */
188 	int offset = 0;
202 		offset = fdt_path_offset(fdt, p);
213 				return offset;
219 		offset = fdt_subnode_offset_namelen(fdt, offset, p, q-p);
220 		if (offset < 0)
221 			return offset;
226 	return offset;
274 	int offset;
276 	if ((offset = fdt_check_node_offset_(fdt, nodeoffset)) < 0)
277 		return offset;
279 	return nextprop_(fdt, offset);
282 int fdt_next_property_offset(const void *fdt, int offset)
284 	if ((offset = fdt_check_prop_offset_(fdt, offset)) < 0)
285 		return offset;
287 	return nextprop_(fdt, offset);
291 						              int offset,
297 	if ((err = fdt_check_prop_offset_(fdt, offset)) < 0) {
303 	prop = fdt_offset_ptr_(fdt, offset);
312 						      int offset,
324 	return fdt_get_property_by_offset_(fdt, offset, lenp);
328 						            int offset,
334 	for (offset = fdt_first_property_offset(fdt, offset);
335 	     (offset >= 0);
336 	     (offset = fdt_next_property_offset(fdt, offset))) {
339 		if (!(prop = fdt_get_property_by_offset_(fdt, offset, lenp))) {
340 			offset = -FDT_ERR_INTERNAL;
346 				*poffset = offset;
352 		*lenp = offset;
358 						    int offset,
370 	return fdt_get_property_namelen_(fdt, offset, name, namelen, lenp,
401 const void *fdt_getprop_by_offset(const void *fdt, int offset,
406 	prop = fdt_get_property_by_offset_(fdt, offset, lenp);
413 	if (fdt_version(fdt) < 0x10 && (offset + sizeof(*prop)) % 8 &&
462 	int offset, depth, namelen;
470 	for (offset = 0, depth = 0;
471 	     (offset >= 0) && (offset <= nodeoffset);
472 	     offset = fdt_next_node(fdt, offset, &depth)) {
481 			name = fdt_get_name(fdt, offset, &namelen);
492 		if (offset == nodeoffset) {
503 	if ((offset == -FDT_ERR_NOTFOUND) || (offset >= 0))
505 	else if (offset == -FDT_ERR_BADOFFSET)
508 	return offset; /* error from fdt_next_node() */
514 	int offset, depth;
522 	for (offset = 0, depth = 0;
523 	     (offset >= 0) && (offset <= nodeoffset);
524 	     offset = fdt_next_node(fdt, offset, &depth)) {
526 			supernodeoffset = offset;
528 		if (offset == nodeoffset) {
539 	if ((offset == -FDT_ERR_NOTFOUND) || (offset >= 0))
541 	else if (offset == -FDT_ERR_BADOFFSET)
544 	return offset; /* error from fdt_next_node() */
572 	int offset;
583 	for (offset = fdt_next_node(fdt, startoffset, NULL);
584 	     offset >= 0;
585 	     offset = fdt_next_node(fdt, offset, NULL)) {
586 		val = fdt_getprop(fdt, offset, propname, &len);
589 			return offset;
592 	return offset; /* error from fdt_next_node() */
597 	int offset;
610 	for (offset = fdt_next_node(fdt, -1, NULL);
611 	     offset >= 0;
612 	     offset = fdt_next_node(fdt, offset, NULL)) {
613 		if (fdt_get_phandle(fdt, offset) == phandle)
614 			return offset;
617 	return offset; /* error from fdt_next_node() */
753 	int offset, err;
762 	for (offset = fdt_next_node(fdt, startoffset, NULL);
763 	     offset >= 0;
764 	     offset = fdt_next_node(fdt, offset, NULL)) {
765 		err = fdt_node_check_compatible(fdt, offset, compatible);
769 			return offset;
772 	return offset; /* error from fdt_next_node() */