Lines Matching +full:int +full:- +full:property
4 * libfdt - Flat Device Tree manipulation
23 * MA 02110-1301 USA
62 /* FDT_ERR_NOTFOUND: The requested node or property does not exist */
64 /* FDT_ERR_EXISTS: Attempted to create a node or property which
75 * offset which is out-of-bounds, or which points to an
83 * This can be caused either by an invalid phandle property
84 * length, or the phandle value was either 0 or -1, which are
88 * tree created by the sequential-write functions, which is
97 * device tree at all - it is missing the flattened device
102 * read-write functions, this may mean that fdt_open_into() is
109 /* FDT_ERR_BADLAYOUT: For read-write functions, the given
110 * device tree has it's sub-blocks in an order that the
113 * into a form suitable for the read-write operations. */
123 /* FDT_ERR_BADNCELLS: Device tree has a #address-cells, #size-cells
124 * or similar property with a bad format or value */
127 /* FDT_ERR_BADVALUE: Device tree has a property with an unexpected
128 * value. For example: a property expected to contain a string list
129 * is not NUL-terminated within the length of its value. */
134 * unexpected or missing value, property or node. */
143 /* Low-level functions (you probably don't need these) */
147 const void *fdt_offset_ptr(const void *fdt, int offset, unsigned int checklen);
149 static inline void *fdt_offset_ptr_w(void *fdt, int offset, int checklen) in fdt_offset_ptr_w()
154 uint32_t fdt_next_tag(const void *fdt, int offset, int *nextoffset);
160 int fdt_next_node(const void *fdt, int offset, int *depth);
163 * fdt_first_subnode() - get offset of first direct subnode
167 * @return offset of first subnode, or -FDT_ERR_NOTFOUND if there is none
169 int fdt_first_subnode(const void *fdt, int offset);
172 * fdt_next_subnode() - get offset of next direct subnode
179 * @return offset of next subnode, or -FDT_ERR_NOTFOUND if there are no more
182 int fdt_next_subnode(const void *fdt, int offset);
185 * fdt_for_each_subnode - iterate over all subnodes of a parent
187 * @node: child node (int, lvalue)
189 * @parent: parent node (int)
198 * if ((node < 0) && (node != -FDT_ERR_NOT_FOUND)) {
216 (fdt32_to_cpu(((const struct fdt_header *)(fdt))->field))
232 fdth->name = cpu_to_fdt32(val); \
247 * fdt_check_header - sanity check a device tree or possible device tree
256 * -FDT_ERR_BADMAGIC,
257 * -FDT_ERR_BADVERSION,
258 * -FDT_ERR_BADSTATE, standard meanings, as above
260 int fdt_check_header(const void *fdt);
263 * fdt_move - move a device tree around in memory
276 * -FDT_ERR_NOSPACE, bufsize is insufficient to contain the device tree
277 * -FDT_ERR_BADMAGIC,
278 * -FDT_ERR_BADVERSION,
279 * -FDT_ERR_BADSTATE, standard meanings
281 int fdt_move(const void *fdt, void *buf, int bufsize);
284 /* Read-only functions */
288 * fdt_string - retrieve a string from the strings block of a device tree
299 const char *fdt_string(const void *fdt, int stroffset);
302 * fdt_get_max_phandle - retrieves the highest phandle in a tree
307 * with a value of 0 or -1.
312 * -1, if an error occurred
317 * fdt_num_mem_rsv - retrieve the number of memory reserve map entries
327 int fdt_num_mem_rsv(const void *fdt);
330 * fdt_get_mem_rsv - retrieve one memory reserve map entry
332 * @address, @size: pointers to 64-bit variables
335 * the n-th reserve map entry from the device tree blob, in
336 * native-endian format.
340 * -FDT_ERR_BADMAGIC,
341 * -FDT_ERR_BADVERSION,
342 * -FDT_ERR_BADSTATE, standard meanings
344 int fdt_get_mem_rsv(const void *fdt, int n, uint64_t *address, uint64_t *size);
347 * fdt_subnode_offset_namelen - find a subnode based on substring
359 int fdt_subnode_offset_namelen(const void *fdt, int parentoffset,
360 const char *name, int namelen);
363 * fdt_subnode_offset - find a subnode of a given node
377 * -FDT_ERR_NOTFOUND, if the requested subnode does not exist
378 * -FDT_ERR_BADOFFSET, if parentoffset did not point to an FDT_BEGIN_NODE
380 * -FDT_ERR_BADMAGIC,
381 * -FDT_ERR_BADVERSION,
382 * -FDT_ERR_BADSTATE,
383 * -FDT_ERR_BADSTRUCTURE,
384 * -FDT_ERR_TRUNCATED, standard meanings.
386 int fdt_subnode_offset(const void *fdt, int parentoffset, const char *name);
389 * fdt_path_offset_namelen - find a tree node by its full path
398 int fdt_path_offset_namelen(const void *fdt, const char *path, int namelen);
402 * fdt_path_offset - find a tree node by its full path
416 * -FDT_ERR_BADPATH, given path does not begin with '/' or is invalid
417 * -FDT_ERR_NOTFOUND, if the requested node does not exist
418 * -FDT_ERR_BADMAGIC,
419 * -FDT_ERR_BADVERSION,
420 * -FDT_ERR_BADSTATE,
421 * -FDT_ERR_BADSTRUCTURE,
422 * -FDT_ERR_TRUNCATED, standard meanings.
424 int fdt_path_offset(const void *fdt, const char *path);
427 * fdt_get_name - retrieve the name of a given node
434 * non-NULL, the length of this name is also returned, in the integer
439 * If lenp is non-NULL, *lenp contains the length of that name
442 * if lenp is non-NULL *lenp contains an error code (<0):
443 * -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE
445 * -FDT_ERR_BADMAGIC,
446 * -FDT_ERR_BADVERSION,
447 * -FDT_ERR_BADSTATE, standard meanings
449 const char *fdt_get_name(const void *fdt, int nodeoffset, int *lenp);
452 * fdt_first_property_offset - find the offset of a node's first property
456 * fdt_first_property_offset() finds the first property of the node at
460 * structure block offset of the property (>=0), on success
461 * -FDT_ERR_NOTFOUND, if the requested node has no properties
462 * -FDT_ERR_BADOFFSET, if nodeoffset did not point to an FDT_BEGIN_NODE tag
463 * -FDT_ERR_BADMAGIC,
464 * -FDT_ERR_BADVERSION,
465 * -FDT_ERR_BADSTATE,
466 * -FDT_ERR_BADSTRUCTURE,
467 * -FDT_ERR_TRUNCATED, standard meanings.
469 int fdt_first_property_offset(const void *fdt, int nodeoffset);
472 * fdt_next_property_offset - step through a node's properties
474 * @offset: structure block offset of a property
476 * fdt_next_property_offset() finds the property immediately after the
477 * one at the given structure block offset. This will be a property
478 * of the same node as the given property.
481 * structure block offset of the next property (>=0), on success
482 * -FDT_ERR_NOTFOUND, if the given property is the last in its node
483 * -FDT_ERR_BADOFFSET, if nodeoffset did not point to an FDT_PROP tag
484 * -FDT_ERR_BADMAGIC,
485 * -FDT_ERR_BADVERSION,
486 * -FDT_ERR_BADSTATE,
487 * -FDT_ERR_BADSTRUCTURE,
488 * -FDT_ERR_TRUNCATED, standard meanings.
490 int fdt_next_property_offset(const void *fdt, int offset);
493 * fdt_for_each_property_offset - iterate over all properties of a node
495 * @property_offset: property offset (int, lvalue)
497 * @node: node offset (int)
501 * fdt_for_each_property_offset(property, fdt, node) {
502 * Use property
506 * if ((property < 0) && (property != -FDT_ERR_NOT_FOUND)) {
510 * Note that this is implemented as a macro and property is used as
514 #define fdt_for_each_property_offset(property, fdt, node) \ argument
515 for (property = fdt_first_property_offset(fdt, node); \
516 property >= 0; \
517 property = fdt_next_property_offset(fdt, property))
520 * fdt_get_property_by_offset - retrieve the property at a given offset
522 * @offset: offset of the property to retrieve
527 * offset. If lenp is non-NULL, the length of the property value is
534 * pointer to the structure representing the property
535 * if lenp is non-NULL, *lenp contains the length of the property
538 * if lenp is non-NULL, *lenp contains an error code (<0):
539 * -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_PROP tag
540 * -FDT_ERR_BADMAGIC,
541 * -FDT_ERR_BADVERSION,
542 * -FDT_ERR_BADSTATE,
543 * -FDT_ERR_BADSTRUCTURE,
544 * -FDT_ERR_TRUNCATED, standard meanings
547 int offset,
548 int *lenp);
551 * fdt_get_property_namelen - find a property based on substring
553 * @nodeoffset: offset of the node whose property to find
554 * @name: name of the property to find
559 * characters of name for matching the property name.
563 int nodeoffset,
565 int namelen, int *lenp);
569 * fdt_get_property - find a given property in a given node
571 * @nodeoffset: offset of the node whose property to find
572 * @name: name of the property to find
576 * structure within the device tree blob corresponding to the property
578 * non-NULL, the length of the property value is also returned, in the
582 * pointer to the structure representing the property
583 * if lenp is non-NULL, *lenp contains the length of the property
586 * if lenp is non-NULL, *lenp contains an error code (<0):
587 * -FDT_ERR_NOTFOUND, node does not have named property
588 * -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE
590 * -FDT_ERR_BADMAGIC,
591 * -FDT_ERR_BADVERSION,
592 * -FDT_ERR_BADSTATE,
593 * -FDT_ERR_BADSTRUCTURE,
594 * -FDT_ERR_TRUNCATED, standard meanings
596 const struct fdt_property *fdt_get_property(const void *fdt, int nodeoffset,
597 const char *name, int *lenp);
598 static inline struct fdt_property *fdt_get_property_w(void *fdt, int nodeoffset, in fdt_get_property_w()
600 int *lenp) in fdt_get_property_w()
607 * fdt_getprop_by_offset - retrieve the value of a property at a given offset
609 * @ffset: offset of the property to read
614 * property at structure block offset 'offset' (this will be a pointer
616 * lenp is non-NULL, the length of the property value is also
617 * returned, in the integer pointed to by lenp. If namep is non-NULL,
618 * the property's namne will also be returned in the char * pointed to
623 * pointer to the property's value
624 * if lenp is non-NULL, *lenp contains the length of the property
626 * if namep is non-NULL *namep contiains a pointer to the property
629 * if lenp is non-NULL, *lenp contains an error code (<0):
630 * -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_PROP tag
631 * -FDT_ERR_BADMAGIC,
632 * -FDT_ERR_BADVERSION,
633 * -FDT_ERR_BADSTATE,
634 * -FDT_ERR_BADSTRUCTURE,
635 * -FDT_ERR_TRUNCATED, standard meanings
638 const void *fdt_getprop_by_offset(const void *fdt, int offset,
639 const char **namep, int *lenp);
643 * fdt_getprop_namelen - get property value based on substring
645 * @nodeoffset: offset of the node whose property to find
646 * @name: name of the property to find
651 * characters of name for matching the property name.
654 const void *fdt_getprop_namelen(const void *fdt, int nodeoffset,
655 const char *name, int namelen, int *lenp);
656 static inline void *fdt_getprop_namelen_w(void *fdt, int nodeoffset, in fdt_getprop_namelen_w()
657 const char *name, int namelen, in fdt_getprop_namelen_w()
658 int *lenp) in fdt_getprop_namelen_w()
666 * fdt_getprop - retrieve the value of a given property
668 * @nodeoffset: offset of the node whose property to find
669 * @name: name of the property to find
672 * fdt_getprop() retrieves a pointer to the value of the property
675 * If lenp is non-NULL, the length of the property value is also
679 * pointer to the property's value
680 * if lenp is non-NULL, *lenp contains the length of the property
683 * if lenp is non-NULL, *lenp contains an error code (<0):
684 * -FDT_ERR_NOTFOUND, node does not have named property
685 * -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE
687 * -FDT_ERR_BADMAGIC,
688 * -FDT_ERR_BADVERSION,
689 * -FDT_ERR_BADSTATE,
690 * -FDT_ERR_BADSTRUCTURE,
691 * -FDT_ERR_TRUNCATED, standard meanings
693 const void *fdt_getprop(const void *fdt, int nodeoffset,
694 const char *name, int *lenp);
695 static inline void *fdt_getprop_w(void *fdt, int nodeoffset, in fdt_getprop_w()
696 const char *name, int *lenp) in fdt_getprop_w()
702 * fdt_get_phandle - retrieve the phandle of a given node
710 * the phandle of the node at nodeoffset, on success (!= 0, != -1)
713 uint32_t fdt_get_phandle(const void *fdt, int nodeoffset);
716 * fdt_get_alias_namelen - get alias based on substring
726 const char *name, int namelen);
730 * fdt_get_alias - retrieve the path referenced by a given alias
735 * value of the property named 'name' in the node /aliases.
744 * fdt_get_path - determine the full path of a node
759 * nodeoffset, as a NUL-terminated string.
760 * -FDT_ERR_BADOFFSET, nodeoffset does not refer to a BEGIN_NODE tag
761 * -FDT_ERR_NOSPACE, the path of the given node is longer than (bufsize-1)
763 * -FDT_ERR_BADMAGIC,
764 * -FDT_ERR_BADVERSION,
765 * -FDT_ERR_BADSTATE,
766 * -FDT_ERR_BADSTRUCTURE, standard meanings
768 int fdt_get_path(const void *fdt, int nodeoffset, char *buf, int buflen);
771 * fdt_supernode_atdepth_offset - find a specific ancestor of a node
792 * -FDT_ERR_BADOFFSET, nodeoffset does not refer to a BEGIN_NODE tag
793 * -FDT_ERR_NOTFOUND, supernodedepth was greater than the depth of
795 * -FDT_ERR_BADMAGIC,
796 * -FDT_ERR_BADVERSION,
797 * -FDT_ERR_BADSTATE,
798 * -FDT_ERR_BADSTRUCTURE, standard meanings
800 int fdt_supernode_atdepth_offset(const void *fdt, int nodeoffset,
801 int supernodedepth, int *nodedepth);
804 * fdt_node_depth - find the depth of a given node
816 * -FDT_ERR_BADOFFSET, nodeoffset does not refer to a BEGIN_NODE tag
817 * -FDT_ERR_BADMAGIC,
818 * -FDT_ERR_BADVERSION,
819 * -FDT_ERR_BADSTATE,
820 * -FDT_ERR_BADSTRUCTURE, standard meanings
822 int fdt_node_depth(const void *fdt, int nodeoffset);
825 * fdt_parent_offset - find the parent of a given node
839 * -FDT_ERR_BADOFFSET, nodeoffset does not refer to a BEGIN_NODE tag
840 * -FDT_ERR_BADMAGIC,
841 * -FDT_ERR_BADVERSION,
842 * -FDT_ERR_BADSTATE,
843 * -FDT_ERR_BADSTRUCTURE, standard meanings
845 int fdt_parent_offset(const void *fdt, int nodeoffset);
848 * fdt_node_offset_by_prop_value - find nodes with a given property value
851 * @propname: property name to check
852 * @propval: property value to search for
856 * node after startoffset, which has a property named propname whose
858 * startoffset is -1, the very first such node in the tree.
862 * offset = fdt_node_offset_by_prop_value(fdt, -1, propname,
864 * while (offset != -FDT_ERR_NOTFOUND) {
870 * Note the -1 in the first call to the function, if 0 is used here
877 * -FDT_ERR_NOTFOUND, no node matching the criterion exists in the
879 * -FDT_ERR_BADOFFSET, nodeoffset does not refer to a BEGIN_NODE tag
880 * -FDT_ERR_BADMAGIC,
881 * -FDT_ERR_BADVERSION,
882 * -FDT_ERR_BADSTATE,
883 * -FDT_ERR_BADSTRUCTURE, standard meanings
885 int fdt_node_offset_by_prop_value(const void *fdt, int startoffset,
887 const void *propval, int proplen);
890 * fdt_node_offset_by_phandle - find the node with a given phandle
901 * -FDT_ERR_NOTFOUND, no node with that phandle exists
902 * -FDT_ERR_BADPHANDLE, given phandle value was invalid (0 or -1)
903 * -FDT_ERR_BADMAGIC,
904 * -FDT_ERR_BADVERSION,
905 * -FDT_ERR_BADSTATE,
906 * -FDT_ERR_BADSTRUCTURE, standard meanings
908 int fdt_node_offset_by_phandle(const void *fdt, uint32_t phandle);
911 * fdt_node_check_compatible: check a node's compatible property
918 * 'compatible' property with the given string as one of its elements,
919 * it returns non-zero otherwise, or on error.
922 * 0, if the node has a 'compatible' property listing the given string
923 * 1, if the node has a 'compatible' property, but it does not list
925 * -FDT_ERR_NOTFOUND, if the given node has no 'compatible' property
926 * -FDT_ERR_BADOFFSET, if nodeoffset does not refer to a BEGIN_NODE tag
927 * -FDT_ERR_BADMAGIC,
928 * -FDT_ERR_BADVERSION,
929 * -FDT_ERR_BADSTATE,
930 * -FDT_ERR_BADSTRUCTURE, standard meanings
932 int fdt_node_check_compatible(const void *fdt, int nodeoffset,
936 * fdt_node_offset_by_compatible - find nodes with a given 'compatible' value
942 * node after startoffset, which has a 'compatible' property which
943 * lists the given compatible string; or if startoffset is -1, the
948 * offset = fdt_node_offset_by_compatible(fdt, -1, compatible);
949 * while (offset != -FDT_ERR_NOTFOUND) {
954 * Note the -1 in the first call to the function, if 0 is used here
961 * -FDT_ERR_NOTFOUND, no node matching the criterion exists in the
963 * -FDT_ERR_BADOFFSET, nodeoffset does not refer to a BEGIN_NODE tag
964 * -FDT_ERR_BADMAGIC,
965 * -FDT_ERR_BADVERSION,
966 * -FDT_ERR_BADSTATE,
967 * -FDT_ERR_BADSTRUCTURE, standard meanings
969 int fdt_node_offset_by_compatible(const void *fdt, int startoffset,
973 * fdt_stringlist_contains - check a string list property for a string
974 * @strlist: Property containing a list of strings to check
975 * @listlen: Length of property
980 * "compatible" property.
984 int fdt_stringlist_contains(const char *strlist, int listlen, const char *str);
987 * fdt_stringlist_count - count the number of strings in a string list
990 * @property: name of the property containing the string list
992 * the number of strings in the given property
993 * -FDT_ERR_BADVALUE if the property value is not NUL-terminated
994 * -FDT_ERR_NOTFOUND if the property does not exist
996 int fdt_stringlist_count(const void *fdt, int nodeoffset, const char *property);
999 * fdt_stringlist_search - find a string in a string list and return its index
1002 * @property: name of the property containing the string list
1005 * Note that it is possible for this function to succeed on property values
1006 * that are not NUL-terminated. That's because the function will stop after
1008 * small-valued cell properties, such as #address-cells, when searching for
1013 * -FDT_ERR_BADVALUE if the property value is not NUL-terminated
1014 * -FDT_ERR_NOTFOUND if the property does not exist or does not contain
1017 int fdt_stringlist_search(const void *fdt, int nodeoffset, const char *property,
1021 * fdt_stringlist_get() - obtain the string at a given index in a string list
1024 * @property: name of the property containing the string list
1029 * non-NUL-terminated values. For example on small-valued cell properties
1032 * If non-NULL, the length of the string (on success) or a negative error-code
1038 * location pointed to by the lenp parameter, if non-NULL. On failure one of
1040 * (if non-NULL):
1041 * -FDT_ERR_BADVALUE if the property value is not NUL-terminated
1042 * -FDT_ERR_NOTFOUND if the property does not exist
1044 const char *fdt_stringlist_get(const void *fdt, int nodeoffset,
1045 const char *property, int index,
1046 int *lenp);
1049 /* Read-only functions (addressing related) */
1053 * FDT_MAX_NCELLS - maximum value for #address-cells and #size-cells
1055 * This is the maximum value for #address-cells, #size-cells and
1064 * fdt_address_cells - retrieve address size for a bus represented in the tree
1068 * When the node has a valid #address-cells property, returns its value.
1072 * 2, if the node has no #address-cells property
1073 * -FDT_ERR_BADNCELLS, if the node has a badly formatted or invalid
1074 * #address-cells property
1075 * -FDT_ERR_BADMAGIC,
1076 * -FDT_ERR_BADVERSION,
1077 * -FDT_ERR_BADSTATE,
1078 * -FDT_ERR_BADSTRUCTURE,
1079 * -FDT_ERR_TRUNCATED, standard meanings
1081 int fdt_address_cells(const void *fdt, int nodeoffset);
1084 * fdt_size_cells - retrieve address range size for a bus represented in the
1089 * When the node has a valid #size-cells property, returns its value.
1093 * 2, if the node has no #address-cells property
1094 * -FDT_ERR_BADNCELLS, if the node has a badly formatted or invalid
1095 * #size-cells property
1096 * -FDT_ERR_BADMAGIC,
1097 * -FDT_ERR_BADVERSION,
1098 * -FDT_ERR_BADSTATE,
1099 * -FDT_ERR_BADSTRUCTURE,
1100 * -FDT_ERR_TRUNCATED, standard meanings
1102 int fdt_size_cells(const void *fdt, int nodeoffset);
1106 /* Write-in-place functions */
1110 * fdt_setprop_inplace_namelen_partial - change a property's value,
1113 * @nodeoffset: offset of the node whose property to change
1114 * @name: name of the property to change
1116 * @idx: index of the property to change in the array
1117 * @val: pointer to data to replace the property value with
1118 * @len: length of the property value
1120 * Identical to fdt_setprop_inplace(), but modifies the given property
1126 int fdt_setprop_inplace_namelen_partial(void *fdt, int nodeoffset,
1127 const char *name, int namelen,
1129 int len);
1133 * fdt_setprop_inplace - change a property's value, but not its size
1135 * @nodeoffset: offset of the node whose property to change
1136 * @name: name of the property to change
1137 * @val: pointer to data to replace the property value with
1138 * @len: length of the property value
1140 * fdt_setprop_inplace() replaces the value of a given property with
1142 * size of a property, and so will only work if len is equal to the
1143 * current length of the property.
1146 * the given property value, and will not alter or move any other part
1151 * -FDT_ERR_NOSPACE, if len is not equal to the property's current length
1152 * -FDT_ERR_NOTFOUND, node does not have the named property
1153 * -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
1154 * -FDT_ERR_BADMAGIC,
1155 * -FDT_ERR_BADVERSION,
1156 * -FDT_ERR_BADSTATE,
1157 * -FDT_ERR_BADSTRUCTURE,
1158 * -FDT_ERR_TRUNCATED, standard meanings
1161 int fdt_setprop_inplace(void *fdt, int nodeoffset, const char *name,
1162 const void *val, int len);
1166 * fdt_setprop_inplace_u32 - change the value of a 32-bit integer property
1168 * @nodeoffset: offset of the node whose property to change
1169 * @name: name of the property to change
1170 * @val: 32-bit integer value to replace the property with
1172 * fdt_setprop_inplace_u32() replaces the value of a given property
1173 * with the 32-bit integer value in val, converting val to big-endian
1174 * if necessary. This function cannot change the size of a property,
1175 * and so will only work if the property already exists and has length
1179 * the given property value, and will not alter or move any other part
1184 * -FDT_ERR_NOSPACE, if the property's length is not equal to 4
1185 * -FDT_ERR_NOTFOUND, node does not have the named property
1186 * -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
1187 * -FDT_ERR_BADMAGIC,
1188 * -FDT_ERR_BADVERSION,
1189 * -FDT_ERR_BADSTATE,
1190 * -FDT_ERR_BADSTRUCTURE,
1191 * -FDT_ERR_TRUNCATED, standard meanings
1193 static inline int fdt_setprop_inplace_u32(void *fdt, int nodeoffset, in fdt_setprop_inplace_u32()
1201 * fdt_setprop_inplace_u64 - change the value of a 64-bit integer property
1203 * @nodeoffset: offset of the node whose property to change
1204 * @name: name of the property to change
1205 * @val: 64-bit integer value to replace the property with
1207 * fdt_setprop_inplace_u64() replaces the value of a given property
1208 * with the 64-bit integer value in val, converting val to big-endian
1209 * if necessary. This function cannot change the size of a property,
1210 * and so will only work if the property already exists and has length
1214 * the given property value, and will not alter or move any other part
1219 * -FDT_ERR_NOSPACE, if the property's length is not equal to 8
1220 * -FDT_ERR_NOTFOUND, node does not have the named property
1221 * -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
1222 * -FDT_ERR_BADMAGIC,
1223 * -FDT_ERR_BADVERSION,
1224 * -FDT_ERR_BADSTATE,
1225 * -FDT_ERR_BADSTRUCTURE,
1226 * -FDT_ERR_TRUNCATED, standard meanings
1228 static inline int fdt_setprop_inplace_u64(void *fdt, int nodeoffset, in fdt_setprop_inplace_u64()
1236 * fdt_setprop_inplace_cell - change the value of a single-cell property
1240 static inline int fdt_setprop_inplace_cell(void *fdt, int nodeoffset, in fdt_setprop_inplace_cell()
1247 * fdt_nop_property - replace a property with nop tags
1249 * @nodeoffset: offset of the node whose property to nop
1250 * @name: name of the property to nop
1252 * fdt_nop_property() will replace a given property's representation
1257 * the property, and will not alter or move any other part of the
1262 * -FDT_ERR_NOTFOUND, node does not have the named property
1263 * -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
1264 * -FDT_ERR_BADMAGIC,
1265 * -FDT_ERR_BADVERSION,
1266 * -FDT_ERR_BADSTATE,
1267 * -FDT_ERR_BADSTRUCTURE,
1268 * -FDT_ERR_TRUNCATED, standard meanings
1270 int fdt_nop_property(void *fdt, int nodeoffset, const char *name);
1273 * fdt_nop_node - replace a node (subtree) with nop tags
1287 * -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
1288 * -FDT_ERR_BADMAGIC,
1289 * -FDT_ERR_BADVERSION,
1290 * -FDT_ERR_BADSTATE,
1291 * -FDT_ERR_BADSTRUCTURE,
1292 * -FDT_ERR_TRUNCATED, standard meanings
1294 int fdt_nop_node(void *fdt, int nodeoffset);
1300 int fdt_create(void *buf, int bufsize);
1301 int fdt_resize(void *fdt, void *buf, int bufsize);
1302 int fdt_add_reservemap_entry(void *fdt, uint64_t addr, uint64_t size);
1303 int fdt_finish_reservemap(void *fdt);
1304 int fdt_begin_node(void *fdt, const char *name);
1305 int fdt_property(void *fdt, const char *name, const void *val, int len);
1306 static inline int fdt_property_u32(void *fdt, const char *name, uint32_t val) in fdt_property_u32()
1311 static inline int fdt_property_u64(void *fdt, const char *name, uint64_t val) in fdt_property_u64()
1316 static inline int fdt_property_cell(void *fdt, const char *name, uint32_t val) in fdt_property_cell()
1322 * fdt_property_placeholder - add a new property and return a ptr to its value
1325 * @name: name of property to add
1326 * @len: length of property value in bytes
1331 * -FDT_ERR_BADMAGIC,
1332 * -FDT_ERR_NOSPACE, standard meanings
1334 int fdt_property_placeholder(void *fdt, const char *name, int len, void **valp);
1338 int fdt_end_node(void *fdt);
1339 int fdt_finish(void *fdt);
1342 /* Read-write functions */
1345 int fdt_create_empty_tree(void *buf, int bufsize);
1346 int fdt_open_into(const void *fdt, void *buf, int bufsize);
1347 int fdt_pack(void *fdt);
1350 * fdt_add_mem_rsv - add one memory reserve map entry
1352 * @address, @size: 64-bit values (native endian)
1362 * -FDT_ERR_NOSPACE, there is insufficient free space in the blob to
1364 * -FDT_ERR_BADMAGIC,
1365 * -FDT_ERR_BADVERSION,
1366 * -FDT_ERR_BADSTATE,
1367 * -FDT_ERR_BADSTRUCTURE,
1368 * -FDT_ERR_BADLAYOUT,
1369 * -FDT_ERR_TRUNCATED, standard meanings
1371 int fdt_add_mem_rsv(void *fdt, uint64_t address, uint64_t size);
1374 * fdt_del_mem_rsv - remove a memory reserve map entry
1378 * fdt_del_mem_rsv() removes the n-th memory reserve map entry from
1386 * -FDT_ERR_NOTFOUND, there is no entry of the given index (i.e. there
1388 * -FDT_ERR_BADMAGIC,
1389 * -FDT_ERR_BADVERSION,
1390 * -FDT_ERR_BADSTATE,
1391 * -FDT_ERR_BADSTRUCTURE,
1392 * -FDT_ERR_BADLAYOUT,
1393 * -FDT_ERR_TRUNCATED, standard meanings
1395 int fdt_del_mem_rsv(void *fdt, int n);
1398 * fdt_set_name - change the name of a given node
1414 * -FDT_ERR_NOSPACE, there is insufficient free space in the blob
1416 * -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
1417 * -FDT_ERR_BADMAGIC,
1418 * -FDT_ERR_BADVERSION,
1419 * -FDT_ERR_BADSTATE, standard meanings
1421 int fdt_set_name(void *fdt, int nodeoffset, const char *name);
1424 * fdt_setprop - create or change a property
1426 * @nodeoffset: offset of the node whose property to change
1427 * @name: name of the property to change
1428 * @val: pointer to data to set the property value to
1429 * @len: length of the property value
1431 * fdt_setprop() sets the value of the named property in the given
1432 * node to the given value and length, creating the property if it
1440 * -FDT_ERR_NOSPACE, there is insufficient free space in the blob to
1441 * contain the new property value
1442 * -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
1443 * -FDT_ERR_BADLAYOUT,
1444 * -FDT_ERR_BADMAGIC,
1445 * -FDT_ERR_BADVERSION,
1446 * -FDT_ERR_BADSTATE,
1447 * -FDT_ERR_BADSTRUCTURE,
1448 * -FDT_ERR_BADLAYOUT,
1449 * -FDT_ERR_TRUNCATED, standard meanings
1451 int fdt_setprop(void *fdt, int nodeoffset, const char *name,
1452 const void *val, int len);
1455 * fdt_setprop_placeholder - allocate space for a property
1457 * @nodeoffset: offset of the node whose property to change
1458 * @name: name of the property to change
1459 * @len: length of the property value
1460 * @prop_data: return pointer to property data
1462 * fdt_setprop_placeholer() allocates the named property in the given node.
1463 * If the property exists it is resized. In either case a pointer to the
1464 * property data is returned.
1471 * -FDT_ERR_NOSPACE, there is insufficient free space in the blob to
1472 * contain the new property value
1473 * -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
1474 * -FDT_ERR_BADLAYOUT,
1475 * -FDT_ERR_BADMAGIC,
1476 * -FDT_ERR_BADVERSION,
1477 * -FDT_ERR_BADSTATE,
1478 * -FDT_ERR_BADSTRUCTURE,
1479 * -FDT_ERR_BADLAYOUT,
1480 * -FDT_ERR_TRUNCATED, standard meanings
1482 int fdt_setprop_placeholder(void *fdt, int nodeoffset, const char *name,
1483 int len, void **prop_data);
1486 * fdt_setprop_u32 - set a property to a 32-bit integer
1488 * @nodeoffset: offset of the node whose property to change
1489 * @name: name of the property to change
1490 * @val: 32-bit integer value for the property (native endian)
1492 * fdt_setprop_u32() sets the value of the named property in the given
1493 * node to the given 32-bit integer value (converting to big-endian if
1494 * necessary), or creates a new property with that value if it does
1502 * -FDT_ERR_NOSPACE, there is insufficient free space in the blob to
1503 * contain the new property value
1504 * -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
1505 * -FDT_ERR_BADLAYOUT,
1506 * -FDT_ERR_BADMAGIC,
1507 * -FDT_ERR_BADVERSION,
1508 * -FDT_ERR_BADSTATE,
1509 * -FDT_ERR_BADSTRUCTURE,
1510 * -FDT_ERR_BADLAYOUT,
1511 * -FDT_ERR_TRUNCATED, standard meanings
1513 static inline int fdt_setprop_u32(void *fdt, int nodeoffset, const char *name, in fdt_setprop_u32()
1521 * fdt_setprop_u64 - set a property to a 64-bit integer
1523 * @nodeoffset: offset of the node whose property to change
1524 * @name: name of the property to change
1525 * @val: 64-bit integer value for the property (native endian)
1527 * fdt_setprop_u64() sets the value of the named property in the given
1528 * node to the given 64-bit integer value (converting to big-endian if
1529 * necessary), or creates a new property with that value if it does
1537 * -FDT_ERR_NOSPACE, there is insufficient free space in the blob to
1538 * contain the new property value
1539 * -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
1540 * -FDT_ERR_BADLAYOUT,
1541 * -FDT_ERR_BADMAGIC,
1542 * -FDT_ERR_BADVERSION,
1543 * -FDT_ERR_BADSTATE,
1544 * -FDT_ERR_BADSTRUCTURE,
1545 * -FDT_ERR_BADLAYOUT,
1546 * -FDT_ERR_TRUNCATED, standard meanings
1548 static inline int fdt_setprop_u64(void *fdt, int nodeoffset, const char *name, in fdt_setprop_u64()
1556 * fdt_setprop_cell - set a property to a single cell value
1560 static inline int fdt_setprop_cell(void *fdt, int nodeoffset, const char *name, in fdt_setprop_cell()
1567 * fdt_setprop_string - set a property to a string value
1569 * @nodeoffset: offset of the node whose property to change
1570 * @name: name of the property to change
1571 * @str: string value for the property
1573 * fdt_setprop_string() sets the value of the named property in the
1575 * string to determine the new length of the property), or creates a
1576 * new property with that value if it does not already exist.
1583 * -FDT_ERR_NOSPACE, there is insufficient free space in the blob to
1584 * contain the new property value
1585 * -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
1586 * -FDT_ERR_BADLAYOUT,
1587 * -FDT_ERR_BADMAGIC,
1588 * -FDT_ERR_BADVERSION,
1589 * -FDT_ERR_BADSTATE,
1590 * -FDT_ERR_BADSTRUCTURE,
1591 * -FDT_ERR_BADLAYOUT,
1592 * -FDT_ERR_TRUNCATED, standard meanings
1599 * fdt_setprop_empty - set a property to an empty value
1601 * @nodeoffset: offset of the node whose property to change
1602 * @name: name of the property to change
1604 * fdt_setprop_empty() sets the value of the named property in the
1606 * property if it does not already exist.
1613 * -FDT_ERR_NOSPACE, there is insufficient free space in the blob to
1614 * contain the new property value
1615 * -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
1616 * -FDT_ERR_BADLAYOUT,
1617 * -FDT_ERR_BADMAGIC,
1618 * -FDT_ERR_BADVERSION,
1619 * -FDT_ERR_BADSTATE,
1620 * -FDT_ERR_BADSTRUCTURE,
1621 * -FDT_ERR_BADLAYOUT,
1622 * -FDT_ERR_TRUNCATED, standard meanings
1628 * fdt_appendprop - append to or create a property
1630 * @nodeoffset: offset of the node whose property to change
1631 * @name: name of the property to append to
1632 * @val: pointer to data to append to the property value
1633 * @len: length of the data to append to the property value
1635 * fdt_appendprop() appends the value to the named property in the
1636 * given node, creating the property if it does not already exist.
1643 * -FDT_ERR_NOSPACE, there is insufficient free space in the blob to
1644 * contain the new property value
1645 * -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
1646 * -FDT_ERR_BADLAYOUT,
1647 * -FDT_ERR_BADMAGIC,
1648 * -FDT_ERR_BADVERSION,
1649 * -FDT_ERR_BADSTATE,
1650 * -FDT_ERR_BADSTRUCTURE,
1651 * -FDT_ERR_BADLAYOUT,
1652 * -FDT_ERR_TRUNCATED, standard meanings
1654 int fdt_appendprop(void *fdt, int nodeoffset, const char *name,
1655 const void *val, int len);
1658 * fdt_appendprop_u32 - append a 32-bit integer value to a property
1660 * @nodeoffset: offset of the node whose property to change
1661 * @name: name of the property to change
1662 * @val: 32-bit integer value to append to the property (native endian)
1664 * fdt_appendprop_u32() appends the given 32-bit integer value
1665 * (converting to big-endian if necessary) to the value of the named
1666 * property in the given node, or creates a new property with that
1674 * -FDT_ERR_NOSPACE, there is insufficient free space in the blob to
1675 * contain the new property value
1676 * -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
1677 * -FDT_ERR_BADLAYOUT,
1678 * -FDT_ERR_BADMAGIC,
1679 * -FDT_ERR_BADVERSION,
1680 * -FDT_ERR_BADSTATE,
1681 * -FDT_ERR_BADSTRUCTURE,
1682 * -FDT_ERR_BADLAYOUT,
1683 * -FDT_ERR_TRUNCATED, standard meanings
1685 static inline int fdt_appendprop_u32(void *fdt, int nodeoffset, in fdt_appendprop_u32()
1693 * fdt_appendprop_u64 - append a 64-bit integer value to a property
1695 * @nodeoffset: offset of the node whose property to change
1696 * @name: name of the property to change
1697 * @val: 64-bit integer value to append to the property (native endian)
1699 * fdt_appendprop_u64() appends the given 64-bit integer value
1700 * (converting to big-endian if necessary) to the value of the named
1701 * property in the given node, or creates a new property with that
1709 * -FDT_ERR_NOSPACE, there is insufficient free space in the blob to
1710 * contain the new property value
1711 * -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
1712 * -FDT_ERR_BADLAYOUT,
1713 * -FDT_ERR_BADMAGIC,
1714 * -FDT_ERR_BADVERSION,
1715 * -FDT_ERR_BADSTATE,
1716 * -FDT_ERR_BADSTRUCTURE,
1717 * -FDT_ERR_BADLAYOUT,
1718 * -FDT_ERR_TRUNCATED, standard meanings
1720 static inline int fdt_appendprop_u64(void *fdt, int nodeoffset, in fdt_appendprop_u64()
1728 * fdt_appendprop_cell - append a single cell value to a property
1732 static inline int fdt_appendprop_cell(void *fdt, int nodeoffset, in fdt_appendprop_cell()
1739 * fdt_appendprop_string - append a string to a property
1741 * @nodeoffset: offset of the node whose property to change
1742 * @name: name of the property to change
1743 * @str: string value to append to the property
1746 * the named property in the given node, or creates a new property
1754 * -FDT_ERR_NOSPACE, there is insufficient free space in the blob to
1755 * contain the new property value
1756 * -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
1757 * -FDT_ERR_BADLAYOUT,
1758 * -FDT_ERR_BADMAGIC,
1759 * -FDT_ERR_BADVERSION,
1760 * -FDT_ERR_BADSTATE,
1761 * -FDT_ERR_BADSTRUCTURE,
1762 * -FDT_ERR_BADLAYOUT,
1763 * -FDT_ERR_TRUNCATED, standard meanings
1769 * fdt_delprop - delete a property
1771 * @nodeoffset: offset of the node whose property to nop
1772 * @name: name of the property to nop
1774 * fdt_del_property() will delete the given property.
1781 * -FDT_ERR_NOTFOUND, node does not have the named property
1782 * -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
1783 * -FDT_ERR_BADLAYOUT,
1784 * -FDT_ERR_BADMAGIC,
1785 * -FDT_ERR_BADVERSION,
1786 * -FDT_ERR_BADSTATE,
1787 * -FDT_ERR_BADSTRUCTURE,
1788 * -FDT_ERR_TRUNCATED, standard meanings
1790 int fdt_delprop(void *fdt, int nodeoffset, const char *name);
1793 * fdt_add_subnode_namelen - creates a new node based on substring
1805 int fdt_add_subnode_namelen(void *fdt, int parentoffset,
1806 const char *name, int namelen);
1810 * fdt_add_subnode - creates a new node
1825 * -FDT_ERR_NOTFOUND, if the requested subnode does not exist
1826 * -FDT_ERR_BADOFFSET, if parentoffset did not point to an FDT_BEGIN_NODE
1828 * -FDT_ERR_EXISTS, if the node at parentoffset already has a subnode of
1830 * -FDT_ERR_NOSPACE, if there is insufficient free space in the
1832 * -FDT_ERR_NOSPACE
1833 * -FDT_ERR_BADLAYOUT
1834 * -FDT_ERR_BADMAGIC,
1835 * -FDT_ERR_BADVERSION,
1836 * -FDT_ERR_BADSTATE,
1837 * -FDT_ERR_BADSTRUCTURE,
1838 * -FDT_ERR_TRUNCATED, standard meanings.
1840 int fdt_add_subnode(void *fdt, int parentoffset, const char *name);
1843 * fdt_del_node - delete a node (subtree)
1855 * -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
1856 * -FDT_ERR_BADLAYOUT,
1857 * -FDT_ERR_BADMAGIC,
1858 * -FDT_ERR_BADVERSION,
1859 * -FDT_ERR_BADSTATE,
1860 * -FDT_ERR_BADSTRUCTURE,
1861 * -FDT_ERR_TRUNCATED, standard meanings
1863 int fdt_del_node(void *fdt, int nodeoffset);
1866 * fdt_overlay_apply - Applies a DT overlay on a base DT
1878 * -FDT_ERR_NOSPACE, there's not enough space in the base device tree
1879 * -FDT_ERR_NOTFOUND, the overlay points to some inexistant nodes or
1881 * -FDT_ERR_BADPHANDLE,
1882 * -FDT_ERR_BADOVERLAY,
1883 * -FDT_ERR_NOPHANDLES,
1884 * -FDT_ERR_INTERNAL,
1885 * -FDT_ERR_BADLAYOUT,
1886 * -FDT_ERR_BADMAGIC,
1887 * -FDT_ERR_BADOFFSET,
1888 * -FDT_ERR_BADPATH,
1889 * -FDT_ERR_BADVERSION,
1890 * -FDT_ERR_BADSTRUCTURE,
1891 * -FDT_ERR_BADSTATE,
1892 * -FDT_ERR_TRUNCATED, standard meanings
1894 int fdt_overlay_apply(void *fdt, void *fdto);
1900 const char *fdt_strerror(int errval);