ext/libfdt/fdt_ro.c

37 static int _fdt_nodename_eq(const void *fdt, int offset,
40         const char *p = fdt_offset_ptr(fdt, offset + FDT_TAGSIZE, len+1);
87 static int _nextprop(const void *fdt, int offset)
93                 tag = fdt_next_tag(fdt, offset, &nextoffset);
103                         return offset;
105                 offset = nextoffset;
111 int fdt_subnode_offset_namelen(const void *fdt, int offset,
119              (offset >= 0) && (depth >= 0);
120              offset = fdt_next_node(fdt, offset, &depth))
122                     && _fdt_nodename_eq(fdt, offset, name, namelen))
123                         return offset;
127         return offset; /* error */
140         int offset = 0;
154                 offset = fdt_path_offset(fdt, p);
165                         return offset;
170                 offset = fdt_subnode_offset_namelen(fdt, offset, p, q-p);
171                 if (offset < 0)
172                         return offset;
177         return offset;
202         int offset;
204         if ((offset = _fdt_check_node_offset(fdt, nodeoffset)) < 0)
205                 return offset;
207         return _nextprop(fdt, offset);
210 int fdt_next_property_offset(const void *fdt, int offset)
212         if ((offset = _fdt_check_prop_offset(fdt, offset)) < 0)
213                 return offset;
215         return _nextprop(fdt, offset);
219                                                       int offset,
225         if ((err = _fdt_check_prop_offset(fdt, offset)) < 0) {
231         prop = _fdt_offset_ptr(fdt, offset);
240                                                     int offset,
244         for (offset = fdt_first_property_offset(fdt, offset);
245              (offset >= 0);
246              (offset = fdt_next_property_offset(fdt, offset))) {
249                 if (!(prop = fdt_get_property_by_offset(fdt, offset, lenp))) {
250                         offset = -FDT_ERR_INTERNAL;
259                 *lenp = offset;
283 const void *fdt_getprop_by_offset(const void *fdt, int offset,
288         prop = fdt_get_property_by_offset(fdt, offset, lenp);
339         int offset, depth, namelen;
347         for (offset = 0, depth = 0;
348              (offset >= 0) && (offset <= nodeoffset);
349              offset = fdt_next_node(fdt, offset, &depth)) {
358                         name = fdt_get_name(fdt, offset, &namelen);
369                 if (offset == nodeoffset) {
380         if ((offset == -FDT_ERR_NOTFOUND) || (offset >= 0))
382         else if (offset == -FDT_ERR_BADOFFSET)
385         return offset; /* error from fdt_next_node() */
391         int offset, depth;
399         for (offset = 0, depth = 0;
400              (offset >= 0) && (offset <= nodeoffset);
401              offset = fdt_next_node(fdt, offset, &depth)) {
403                         supernodeoffset = offset;
405                 if (offset == nodeoffset) {
416         if ((offset == -FDT_ERR_NOTFOUND) || (offset >= 0))
418         else if (offset == -FDT_ERR_BADOFFSET)
421         return offset; /* error from fdt_next_node() */
449         int offset;
460         for (offset = fdt_next_node(fdt, startoffset, NULL);
461              offset >= 0;
462              offset = fdt_next_node(fdt, offset, NULL)) {
463                 val = fdt_getprop(fdt, offset, propname, &len);
466                         return offset;
469         return offset; /* error from fdt_next_node() */
474         int offset;
487         for (offset = fdt_next_node(fdt, -1, NULL);
488              offset >= 0;
489              offset = fdt_next_node(fdt, offset, NULL)) {
490                 if (fdt_get_phandle(fdt, offset) == phandle)
491                         return offset;
494         return offset; /* error from fdt_next_node() */
533         int offset, err;
542         for (offset = fdt_next_node(fdt, startoffset, NULL);
543              offset >= 0;
544              offset = fdt_next_node(fdt, offset, NULL)) {
545                 err = fdt_node_check_compatible(fdt, offset, compatible);
549                         return offset;
552         return offset; /* error from fdt_next_node() */