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
531 * pointer to the structure representing the property
532 * if lenp is non-NULL, *lenp contains the length of the property
535 * if lenp is non-NULL, *lenp contains an error code (<0):
536 * -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_PROP tag
537 * -FDT_ERR_BADMAGIC,
538 * -FDT_ERR_BADVERSION,
539 * -FDT_ERR_BADSTATE,
540 * -FDT_ERR_BADSTRUCTURE,
541 * -FDT_ERR_TRUNCATED, standard meanings
544 int offset,
545 int *lenp);
548 * fdt_get_property_namelen - find a property based on substring
550 * @nodeoffset: offset of the node whose property to find
551 * @name: name of the property to find
556 * characters of name for matching the property name.
560 int nodeoffset,
562 int namelen, int *lenp);
566 * fdt_get_property - find a given property in a given node
568 * @nodeoffset: offset of the node whose property to find
569 * @name: name of the property to find
573 * structure within the device tree blob corresponding to the property
575 * non-NULL, the length of the property value is also returned, in the
579 * pointer to the structure representing the property
580 * if lenp is non-NULL, *lenp contains the length of the property
583 * if lenp is non-NULL, *lenp contains an error code (<0):
584 * -FDT_ERR_NOTFOUND, node does not have named property
585 * -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE
587 * -FDT_ERR_BADMAGIC,
588 * -FDT_ERR_BADVERSION,
589 * -FDT_ERR_BADSTATE,
590 * -FDT_ERR_BADSTRUCTURE,
591 * -FDT_ERR_TRUNCATED, standard meanings
593 const struct fdt_property *fdt_get_property(const void *fdt, int nodeoffset,
594 const char *name, int *lenp);
595 static inline struct fdt_property *fdt_get_property_w(void *fdt, int nodeoffset, in fdt_get_property_w()
597 int *lenp) in fdt_get_property_w()
604 * fdt_getprop_by_offset - retrieve the value of a property at a given offset
606 * @ffset: offset of the property to read
611 * property at structure block offset 'offset' (this will be a pointer
613 * lenp is non-NULL, the length of the property value is also
614 * returned, in the integer pointed to by lenp. If namep is non-NULL,
615 * the property's namne will also be returned in the char * pointed to
620 * pointer to the property's value
621 * if lenp is non-NULL, *lenp contains the length of the property
623 * if namep is non-NULL *namep contiains a pointer to the property
626 * if lenp is non-NULL, *lenp contains an error code (<0):
627 * -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_PROP tag
628 * -FDT_ERR_BADMAGIC,
629 * -FDT_ERR_BADVERSION,
630 * -FDT_ERR_BADSTATE,
631 * -FDT_ERR_BADSTRUCTURE,
632 * -FDT_ERR_TRUNCATED, standard meanings
635 const void *fdt_getprop_by_offset(const void *fdt, int offset,
636 const char **namep, int *lenp);
640 * fdt_getprop_namelen - get property value based on substring
642 * @nodeoffset: offset of the node whose property to find
643 * @name: name of the property to find
648 * characters of name for matching the property name.
651 const void *fdt_getprop_namelen(const void *fdt, int nodeoffset,
652 const char *name, int namelen, int *lenp);
653 static inline void *fdt_getprop_namelen_w(void *fdt, int nodeoffset, in fdt_getprop_namelen_w()
654 const char *name, int namelen, in fdt_getprop_namelen_w()
655 int *lenp) in fdt_getprop_namelen_w()
663 * fdt_getprop - retrieve the value of a given property
665 * @nodeoffset: offset of the node whose property to find
666 * @name: name of the property to find
669 * fdt_getprop() retrieves a pointer to the value of the property
672 * If lenp is non-NULL, the length of the property value is also
676 * pointer to the property's value
677 * if lenp is non-NULL, *lenp contains the length of the property
680 * if lenp is non-NULL, *lenp contains an error code (<0):
681 * -FDT_ERR_NOTFOUND, node does not have named property
682 * -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE
684 * -FDT_ERR_BADMAGIC,
685 * -FDT_ERR_BADVERSION,
686 * -FDT_ERR_BADSTATE,
687 * -FDT_ERR_BADSTRUCTURE,
688 * -FDT_ERR_TRUNCATED, standard meanings
690 const void *fdt_getprop(const void *fdt, int nodeoffset,
691 const char *name, int *lenp);
692 static inline void *fdt_getprop_w(void *fdt, int nodeoffset, in fdt_getprop_w()
693 const char *name, int *lenp) in fdt_getprop_w()
699 * fdt_get_phandle - retrieve the phandle of a given node
707 * the phandle of the node at nodeoffset, on success (!= 0, != -1)
710 uint32_t fdt_get_phandle(const void *fdt, int nodeoffset);
713 * fdt_get_alias_namelen - get alias based on substring
723 const char *name, int namelen);
727 * fdt_get_alias - retrieve the path referenced by a given alias
732 * value of the property named 'name' in the node /aliases.
741 * fdt_get_path - determine the full path of a node
756 * nodeoffset, as a NUL-terminated string.
757 * -FDT_ERR_BADOFFSET, nodeoffset does not refer to a BEGIN_NODE tag
758 * -FDT_ERR_NOSPACE, the path of the given node is longer than (bufsize-1)
760 * -FDT_ERR_BADMAGIC,
761 * -FDT_ERR_BADVERSION,
762 * -FDT_ERR_BADSTATE,
763 * -FDT_ERR_BADSTRUCTURE, standard meanings
765 int fdt_get_path(const void *fdt, int nodeoffset, char *buf, int buflen);
768 * fdt_supernode_atdepth_offset - find a specific ancestor of a node
789 * -FDT_ERR_BADOFFSET, nodeoffset does not refer to a BEGIN_NODE tag
790 * -FDT_ERR_NOTFOUND, supernodedepth was greater than the depth of
792 * -FDT_ERR_BADMAGIC,
793 * -FDT_ERR_BADVERSION,
794 * -FDT_ERR_BADSTATE,
795 * -FDT_ERR_BADSTRUCTURE, standard meanings
797 int fdt_supernode_atdepth_offset(const void *fdt, int nodeoffset,
798 int supernodedepth, int *nodedepth);
801 * fdt_node_depth - find the depth of a given node
813 * -FDT_ERR_BADOFFSET, nodeoffset does not refer to a BEGIN_NODE tag
814 * -FDT_ERR_BADMAGIC,
815 * -FDT_ERR_BADVERSION,
816 * -FDT_ERR_BADSTATE,
817 * -FDT_ERR_BADSTRUCTURE, standard meanings
819 int fdt_node_depth(const void *fdt, int nodeoffset);
822 * fdt_parent_offset - find the parent of a given node
836 * -FDT_ERR_BADOFFSET, nodeoffset does not refer to a BEGIN_NODE tag
837 * -FDT_ERR_BADMAGIC,
838 * -FDT_ERR_BADVERSION,
839 * -FDT_ERR_BADSTATE,
840 * -FDT_ERR_BADSTRUCTURE, standard meanings
842 int fdt_parent_offset(const void *fdt, int nodeoffset);
845 * fdt_node_offset_by_prop_value - find nodes with a given property value
848 * @propname: property name to check
849 * @propval: property value to search for
853 * node after startoffset, which has a property named propname whose
855 * startoffset is -1, the very first such node in the tree.
859 * offset = fdt_node_offset_by_prop_value(fdt, -1, propname,
861 * while (offset != -FDT_ERR_NOTFOUND) {
867 * Note the -1 in the first call to the function, if 0 is used here
874 * -FDT_ERR_NOTFOUND, no node matching the criterion exists in the
876 * -FDT_ERR_BADOFFSET, nodeoffset does not refer to a BEGIN_NODE tag
877 * -FDT_ERR_BADMAGIC,
878 * -FDT_ERR_BADVERSION,
879 * -FDT_ERR_BADSTATE,
880 * -FDT_ERR_BADSTRUCTURE, standard meanings
882 int fdt_node_offset_by_prop_value(const void *fdt, int startoffset,
884 const void *propval, int proplen);
887 * fdt_node_offset_by_phandle - find the node with a given phandle
898 * -FDT_ERR_NOTFOUND, no node with that phandle exists
899 * -FDT_ERR_BADPHANDLE, given phandle value was invalid (0 or -1)
900 * -FDT_ERR_BADMAGIC,
901 * -FDT_ERR_BADVERSION,
902 * -FDT_ERR_BADSTATE,
903 * -FDT_ERR_BADSTRUCTURE, standard meanings
905 int fdt_node_offset_by_phandle(const void *fdt, uint32_t phandle);
908 * fdt_node_check_compatible: check a node's compatible property
915 * 'compatible' property with the given string as one of its elements,
916 * it returns non-zero otherwise, or on error.
919 * 0, if the node has a 'compatible' property listing the given string
920 * 1, if the node has a 'compatible' property, but it does not list
922 * -FDT_ERR_NOTFOUND, if the given node has no 'compatible' property
923 * -FDT_ERR_BADOFFSET, if nodeoffset does not refer to a BEGIN_NODE tag
924 * -FDT_ERR_BADMAGIC,
925 * -FDT_ERR_BADVERSION,
926 * -FDT_ERR_BADSTATE,
927 * -FDT_ERR_BADSTRUCTURE, standard meanings
929 int fdt_node_check_compatible(const void *fdt, int nodeoffset,
933 * fdt_node_offset_by_compatible - find nodes with a given 'compatible' value
939 * node after startoffset, which has a 'compatible' property which
940 * lists the given compatible string; or if startoffset is -1, the
945 * offset = fdt_node_offset_by_compatible(fdt, -1, compatible);
946 * while (offset != -FDT_ERR_NOTFOUND) {
951 * Note the -1 in the first call to the function, if 0 is used here
958 * -FDT_ERR_NOTFOUND, no node matching the criterion exists in the
960 * -FDT_ERR_BADOFFSET, nodeoffset does not refer to a BEGIN_NODE tag
961 * -FDT_ERR_BADMAGIC,
962 * -FDT_ERR_BADVERSION,
963 * -FDT_ERR_BADSTATE,
964 * -FDT_ERR_BADSTRUCTURE, standard meanings
966 int fdt_node_offset_by_compatible(const void *fdt, int startoffset,
970 * fdt_stringlist_contains - check a string list property for a string
971 * @strlist: Property containing a list of strings to check
972 * @listlen: Length of property
977 * "compatible" property.
981 int fdt_stringlist_contains(const char *strlist, int listlen, const char *str);
984 * fdt_stringlist_count - count the number of strings in a string list
987 * @property: name of the property containing the string list
989 * the number of strings in the given property
990 * -FDT_ERR_BADVALUE if the property value is not NUL-terminated
991 * -FDT_ERR_NOTFOUND if the property does not exist
993 int fdt_stringlist_count(const void *fdt, int nodeoffset, const char *property);
996 * fdt_stringlist_search - find a string in a string list and return its index
999 * @property: name of the property containing the string list
1002 * Note that it is possible for this function to succeed on property values
1003 * that are not NUL-terminated. That's because the function will stop after
1005 * small-valued cell properties, such as #address-cells, when searching for
1010 * -FDT_ERR_BADVALUE if the property value is not NUL-terminated
1011 * -FDT_ERR_NOTFOUND if the property does not exist or does not contain
1014 int fdt_stringlist_search(const void *fdt, int nodeoffset, const char *property,
1018 * fdt_stringlist_get() - obtain the string at a given index in a string list
1021 * @property: name of the property containing the string list
1026 * non-NUL-terminated values. For example on small-valued cell properties
1029 * If non-NULL, the length of the string (on success) or a negative error-code
1035 * location pointed to by the lenp parameter, if non-NULL. On failure one of
1037 * (if non-NULL):
1038 * -FDT_ERR_BADVALUE if the property value is not NUL-terminated
1039 * -FDT_ERR_NOTFOUND if the property does not exist
1041 const char *fdt_stringlist_get(const void *fdt, int nodeoffset,
1042 const char *property, int index,
1043 int *lenp);
1046 /* Read-only functions (addressing related) */
1050 * FDT_MAX_NCELLS - maximum value for #address-cells and #size-cells
1052 * This is the maximum value for #address-cells, #size-cells and
1061 * fdt_address_cells - retrieve address size for a bus represented in the tree
1065 * When the node has a valid #address-cells property, returns its value.
1069 * 2, if the node has no #address-cells property
1070 * -FDT_ERR_BADNCELLS, if the node has a badly formatted or invalid
1071 * #address-cells property
1072 * -FDT_ERR_BADMAGIC,
1073 * -FDT_ERR_BADVERSION,
1074 * -FDT_ERR_BADSTATE,
1075 * -FDT_ERR_BADSTRUCTURE,
1076 * -FDT_ERR_TRUNCATED, standard meanings
1078 int fdt_address_cells(const void *fdt, int nodeoffset);
1081 * fdt_size_cells - retrieve address range size for a bus represented in the
1086 * When the node has a valid #size-cells property, returns its value.
1090 * 2, if the node has no #address-cells property
1091 * -FDT_ERR_BADNCELLS, if the node has a badly formatted or invalid
1092 * #size-cells property
1093 * -FDT_ERR_BADMAGIC,
1094 * -FDT_ERR_BADVERSION,
1095 * -FDT_ERR_BADSTATE,
1096 * -FDT_ERR_BADSTRUCTURE,
1097 * -FDT_ERR_TRUNCATED, standard meanings
1099 int fdt_size_cells(const void *fdt, int nodeoffset);
1103 /* Write-in-place functions */
1107 * fdt_setprop_inplace_namelen_partial - change a property's value,
1110 * @nodeoffset: offset of the node whose property to change
1111 * @name: name of the property to change
1113 * @idx: index of the property to change in the array
1114 * @val: pointer to data to replace the property value with
1115 * @len: length of the property value
1117 * Identical to fdt_setprop_inplace(), but modifies the given property
1123 int fdt_setprop_inplace_namelen_partial(void *fdt, int nodeoffset,
1124 const char *name, int namelen,
1126 int len);
1130 * fdt_setprop_inplace - change a property's value, but not its size
1132 * @nodeoffset: offset of the node whose property to change
1133 * @name: name of the property to change
1134 * @val: pointer to data to replace the property value with
1135 * @len: length of the property value
1137 * fdt_setprop_inplace() replaces the value of a given property with
1139 * size of a property, and so will only work if len is equal to the
1140 * current length of the property.
1143 * the given property value, and will not alter or move any other part
1148 * -FDT_ERR_NOSPACE, if len is not equal to the property's current length
1149 * -FDT_ERR_NOTFOUND, node does not have the named property
1150 * -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
1151 * -FDT_ERR_BADMAGIC,
1152 * -FDT_ERR_BADVERSION,
1153 * -FDT_ERR_BADSTATE,
1154 * -FDT_ERR_BADSTRUCTURE,
1155 * -FDT_ERR_TRUNCATED, standard meanings
1158 int fdt_setprop_inplace(void *fdt, int nodeoffset, const char *name,
1159 const void *val, int len);
1163 * fdt_setprop_inplace_u32 - change the value of a 32-bit integer property
1165 * @nodeoffset: offset of the node whose property to change
1166 * @name: name of the property to change
1167 * @val: 32-bit integer value to replace the property with
1169 * fdt_setprop_inplace_u32() replaces the value of a given property
1170 * with the 32-bit integer value in val, converting val to big-endian
1171 * if necessary. This function cannot change the size of a property,
1172 * and so will only work if the property already exists and has length
1176 * the given property value, and will not alter or move any other part
1181 * -FDT_ERR_NOSPACE, if the property's length is not equal to 4
1182 * -FDT_ERR_NOTFOUND, node does not have the named property
1183 * -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
1184 * -FDT_ERR_BADMAGIC,
1185 * -FDT_ERR_BADVERSION,
1186 * -FDT_ERR_BADSTATE,
1187 * -FDT_ERR_BADSTRUCTURE,
1188 * -FDT_ERR_TRUNCATED, standard meanings
1190 static inline int fdt_setprop_inplace_u32(void *fdt, int nodeoffset, in fdt_setprop_inplace_u32()
1198 * fdt_setprop_inplace_u64 - change the value of a 64-bit integer property
1200 * @nodeoffset: offset of the node whose property to change
1201 * @name: name of the property to change
1202 * @val: 64-bit integer value to replace the property with
1204 * fdt_setprop_inplace_u64() replaces the value of a given property
1205 * with the 64-bit integer value in val, converting val to big-endian
1206 * if necessary. This function cannot change the size of a property,
1207 * and so will only work if the property already exists and has length
1211 * the given property value, and will not alter or move any other part
1216 * -FDT_ERR_NOSPACE, if the property's length is not equal to 8
1217 * -FDT_ERR_NOTFOUND, node does not have the named property
1218 * -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
1219 * -FDT_ERR_BADMAGIC,
1220 * -FDT_ERR_BADVERSION,
1221 * -FDT_ERR_BADSTATE,
1222 * -FDT_ERR_BADSTRUCTURE,
1223 * -FDT_ERR_TRUNCATED, standard meanings
1225 static inline int fdt_setprop_inplace_u64(void *fdt, int nodeoffset, in fdt_setprop_inplace_u64()
1233 * fdt_setprop_inplace_cell - change the value of a single-cell property
1237 static inline int fdt_setprop_inplace_cell(void *fdt, int nodeoffset, in fdt_setprop_inplace_cell()
1244 * fdt_nop_property - replace a property with nop tags
1246 * @nodeoffset: offset of the node whose property to nop
1247 * @name: name of the property to nop
1249 * fdt_nop_property() will replace a given property's representation
1254 * the property, and will not alter or move any other part of the
1259 * -FDT_ERR_NOTFOUND, node does not have the named property
1260 * -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
1261 * -FDT_ERR_BADMAGIC,
1262 * -FDT_ERR_BADVERSION,
1263 * -FDT_ERR_BADSTATE,
1264 * -FDT_ERR_BADSTRUCTURE,
1265 * -FDT_ERR_TRUNCATED, standard meanings
1267 int fdt_nop_property(void *fdt, int nodeoffset, const char *name);
1270 * fdt_nop_node - replace a node (subtree) with nop tags
1284 * -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
1285 * -FDT_ERR_BADMAGIC,
1286 * -FDT_ERR_BADVERSION,
1287 * -FDT_ERR_BADSTATE,
1288 * -FDT_ERR_BADSTRUCTURE,
1289 * -FDT_ERR_TRUNCATED, standard meanings
1291 int fdt_nop_node(void *fdt, int nodeoffset);
1297 int fdt_create(void *buf, int bufsize);
1298 int fdt_resize(void *fdt, void *buf, int bufsize);
1299 int fdt_add_reservemap_entry(void *fdt, uint64_t addr, uint64_t size);
1300 int fdt_finish_reservemap(void *fdt);
1301 int fdt_begin_node(void *fdt, const char *name);
1302 int fdt_property(void *fdt, const char *name, const void *val, int len);
1303 static inline int fdt_property_u32(void *fdt, const char *name, uint32_t val) in fdt_property_u32()
1308 static inline int fdt_property_u64(void *fdt, const char *name, uint64_t val) in fdt_property_u64()
1313 static inline int fdt_property_cell(void *fdt, const char *name, uint32_t val) in fdt_property_cell()
1319 * fdt_property_placeholder - add a new property and return a ptr to its value
1322 * @name: name of property to add
1323 * @len: length of property value in bytes
1328 * -FDT_ERR_BADMAGIC,
1329 * -FDT_ERR_NOSPACE, standard meanings
1331 int fdt_property_placeholder(void *fdt, const char *name, int len, void **valp);
1335 int fdt_end_node(void *fdt);
1336 int fdt_finish(void *fdt);
1339 /* Read-write functions */
1342 int fdt_create_empty_tree(void *buf, int bufsize);
1343 int fdt_open_into(const void *fdt, void *buf, int bufsize);
1344 int fdt_pack(void *fdt);
1347 * fdt_add_mem_rsv - add one memory reserve map entry
1349 * @address, @size: 64-bit values (native endian)
1359 * -FDT_ERR_NOSPACE, there is insufficient free space in the blob to
1361 * -FDT_ERR_BADMAGIC,
1362 * -FDT_ERR_BADVERSION,
1363 * -FDT_ERR_BADSTATE,
1364 * -FDT_ERR_BADSTRUCTURE,
1365 * -FDT_ERR_BADLAYOUT,
1366 * -FDT_ERR_TRUNCATED, standard meanings
1368 int fdt_add_mem_rsv(void *fdt, uint64_t address, uint64_t size);
1371 * fdt_del_mem_rsv - remove a memory reserve map entry
1375 * fdt_del_mem_rsv() removes the n-th memory reserve map entry from
1383 * -FDT_ERR_NOTFOUND, there is no entry of the given index (i.e. there
1385 * -FDT_ERR_BADMAGIC,
1386 * -FDT_ERR_BADVERSION,
1387 * -FDT_ERR_BADSTATE,
1388 * -FDT_ERR_BADSTRUCTURE,
1389 * -FDT_ERR_BADLAYOUT,
1390 * -FDT_ERR_TRUNCATED, standard meanings
1392 int fdt_del_mem_rsv(void *fdt, int n);
1395 * fdt_set_name - change the name of a given node
1411 * -FDT_ERR_NOSPACE, there is insufficient free space in the blob
1413 * -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
1414 * -FDT_ERR_BADMAGIC,
1415 * -FDT_ERR_BADVERSION,
1416 * -FDT_ERR_BADSTATE, standard meanings
1418 int fdt_set_name(void *fdt, int nodeoffset, const char *name);
1421 * fdt_setprop - create or change a property
1423 * @nodeoffset: offset of the node whose property to change
1424 * @name: name of the property to change
1425 * @val: pointer to data to set the property value to
1426 * @len: length of the property value
1428 * fdt_setprop() sets the value of the named property in the given
1429 * node to the given value and length, creating the property if it
1437 * -FDT_ERR_NOSPACE, there is insufficient free space in the blob to
1438 * contain the new property value
1439 * -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
1440 * -FDT_ERR_BADLAYOUT,
1441 * -FDT_ERR_BADMAGIC,
1442 * -FDT_ERR_BADVERSION,
1443 * -FDT_ERR_BADSTATE,
1444 * -FDT_ERR_BADSTRUCTURE,
1445 * -FDT_ERR_BADLAYOUT,
1446 * -FDT_ERR_TRUNCATED, standard meanings
1448 int fdt_setprop(void *fdt, int nodeoffset, const char *name,
1449 const void *val, int len);
1452 * fdt_setprop _placeholder - allocate space for a property
1454 * @nodeoffset: offset of the node whose property to change
1455 * @name: name of the property to change
1456 * @len: length of the property value
1457 * @prop_data: return pointer to property data
1459 * fdt_setprop_placeholer() allocates the named property in the given node.
1460 * If the property exists it is resized. In either case a pointer to the
1461 * property data is returned.
1468 * -FDT_ERR_NOSPACE, there is insufficient free space in the blob to
1469 * contain the new property value
1470 * -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
1471 * -FDT_ERR_BADLAYOUT,
1472 * -FDT_ERR_BADMAGIC,
1473 * -FDT_ERR_BADVERSION,
1474 * -FDT_ERR_BADSTATE,
1475 * -FDT_ERR_BADSTRUCTURE,
1476 * -FDT_ERR_BADLAYOUT,
1477 * -FDT_ERR_TRUNCATED, standard meanings
1479 int fdt_setprop_placeholder(void *fdt, int nodeoffset, const char *name,
1480 int len, void **prop_data);
1483 * fdt_setprop_u32 - set a property to a 32-bit integer
1485 * @nodeoffset: offset of the node whose property to change
1486 * @name: name of the property to change
1487 * @val: 32-bit integer value for the property (native endian)
1489 * fdt_setprop_u32() sets the value of the named property in the given
1490 * node to the given 32-bit integer value (converting to big-endian if
1491 * necessary), or creates a new property with that value if it does
1499 * -FDT_ERR_NOSPACE, there is insufficient free space in the blob to
1500 * contain the new property value
1501 * -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
1502 * -FDT_ERR_BADLAYOUT,
1503 * -FDT_ERR_BADMAGIC,
1504 * -FDT_ERR_BADVERSION,
1505 * -FDT_ERR_BADSTATE,
1506 * -FDT_ERR_BADSTRUCTURE,
1507 * -FDT_ERR_BADLAYOUT,
1508 * -FDT_ERR_TRUNCATED, standard meanings
1510 static inline int fdt_setprop_u32(void *fdt, int nodeoffset, const char *name, in fdt_setprop_u32()
1518 * fdt_setprop_u64 - set a property to a 64-bit integer
1520 * @nodeoffset: offset of the node whose property to change
1521 * @name: name of the property to change
1522 * @val: 64-bit integer value for the property (native endian)
1524 * fdt_setprop_u64() sets the value of the named property in the given
1525 * node to the given 64-bit integer value (converting to big-endian if
1526 * necessary), or creates a new property with that value if it does
1534 * -FDT_ERR_NOSPACE, there is insufficient free space in the blob to
1535 * contain the new property value
1536 * -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
1537 * -FDT_ERR_BADLAYOUT,
1538 * -FDT_ERR_BADMAGIC,
1539 * -FDT_ERR_BADVERSION,
1540 * -FDT_ERR_BADSTATE,
1541 * -FDT_ERR_BADSTRUCTURE,
1542 * -FDT_ERR_BADLAYOUT,
1543 * -FDT_ERR_TRUNCATED, standard meanings
1545 static inline int fdt_setprop_u64(void *fdt, int nodeoffset, const char *name, in fdt_setprop_u64()
1553 * fdt_setprop_cell - set a property to a single cell value
1557 static inline int fdt_setprop_cell(void *fdt, int nodeoffset, const char *name, in fdt_setprop_cell()
1564 * fdt_setprop_string - set a property to a string value
1566 * @nodeoffset: offset of the node whose property to change
1567 * @name: name of the property to change
1568 * @str: string value for the property
1570 * fdt_setprop_string() sets the value of the named property in the
1572 * string to determine the new length of the property), or creates a
1573 * new property with that value if it does not already exist.
1580 * -FDT_ERR_NOSPACE, there is insufficient free space in the blob to
1581 * contain the new property value
1582 * -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
1583 * -FDT_ERR_BADLAYOUT,
1584 * -FDT_ERR_BADMAGIC,
1585 * -FDT_ERR_BADVERSION,
1586 * -FDT_ERR_BADSTATE,
1587 * -FDT_ERR_BADSTRUCTURE,
1588 * -FDT_ERR_BADLAYOUT,
1589 * -FDT_ERR_TRUNCATED, standard meanings
1596 * fdt_setprop_empty - set a property to an empty value
1598 * @nodeoffset: offset of the node whose property to change
1599 * @name: name of the property to change
1601 * fdt_setprop_empty() sets the value of the named property in the
1603 * property if it does not already exist.
1610 * -FDT_ERR_NOSPACE, there is insufficient free space in the blob to
1611 * contain the new property value
1612 * -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
1613 * -FDT_ERR_BADLAYOUT,
1614 * -FDT_ERR_BADMAGIC,
1615 * -FDT_ERR_BADVERSION,
1616 * -FDT_ERR_BADSTATE,
1617 * -FDT_ERR_BADSTRUCTURE,
1618 * -FDT_ERR_BADLAYOUT,
1619 * -FDT_ERR_TRUNCATED, standard meanings
1625 * fdt_appendprop - append to or create a property
1627 * @nodeoffset: offset of the node whose property to change
1628 * @name: name of the property to append to
1629 * @val: pointer to data to append to the property value
1630 * @len: length of the data to append to the property value
1632 * fdt_appendprop() appends the value to the named property in the
1633 * given node, creating the property if it does not already exist.
1640 * -FDT_ERR_NOSPACE, there is insufficient free space in the blob to
1641 * contain the new property value
1642 * -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
1643 * -FDT_ERR_BADLAYOUT,
1644 * -FDT_ERR_BADMAGIC,
1645 * -FDT_ERR_BADVERSION,
1646 * -FDT_ERR_BADSTATE,
1647 * -FDT_ERR_BADSTRUCTURE,
1648 * -FDT_ERR_BADLAYOUT,
1649 * -FDT_ERR_TRUNCATED, standard meanings
1651 int fdt_appendprop(void *fdt, int nodeoffset, const char *name,
1652 const void *val, int len);
1655 * fdt_appendprop_u32 - append a 32-bit integer value to a property
1657 * @nodeoffset: offset of the node whose property to change
1658 * @name: name of the property to change
1659 * @val: 32-bit integer value to append to the property (native endian)
1661 * fdt_appendprop_u32() appends the given 32-bit integer value
1662 * (converting to big-endian if necessary) to the value of the named
1663 * property in the given node, or creates a new property with that
1671 * -FDT_ERR_NOSPACE, there is insufficient free space in the blob to
1672 * contain the new property value
1673 * -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
1674 * -FDT_ERR_BADLAYOUT,
1675 * -FDT_ERR_BADMAGIC,
1676 * -FDT_ERR_BADVERSION,
1677 * -FDT_ERR_BADSTATE,
1678 * -FDT_ERR_BADSTRUCTURE,
1679 * -FDT_ERR_BADLAYOUT,
1680 * -FDT_ERR_TRUNCATED, standard meanings
1682 static inline int fdt_appendprop_u32(void *fdt, int nodeoffset, in fdt_appendprop_u32()
1690 * fdt_appendprop_u64 - append a 64-bit integer value to a property
1692 * @nodeoffset: offset of the node whose property to change
1693 * @name: name of the property to change
1694 * @val: 64-bit integer value to append to the property (native endian)
1696 * fdt_appendprop_u64() appends the given 64-bit integer value
1697 * (converting to big-endian if necessary) to the value of the named
1698 * property in the given node, or creates a new property with that
1706 * -FDT_ERR_NOSPACE, there is insufficient free space in the blob to
1707 * contain the new property value
1708 * -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
1709 * -FDT_ERR_BADLAYOUT,
1710 * -FDT_ERR_BADMAGIC,
1711 * -FDT_ERR_BADVERSION,
1712 * -FDT_ERR_BADSTATE,
1713 * -FDT_ERR_BADSTRUCTURE,
1714 * -FDT_ERR_BADLAYOUT,
1715 * -FDT_ERR_TRUNCATED, standard meanings
1717 static inline int fdt_appendprop_u64(void *fdt, int nodeoffset, in fdt_appendprop_u64()
1725 * fdt_appendprop_cell - append a single cell value to a property
1729 static inline int fdt_appendprop_cell(void *fdt, int nodeoffset, in fdt_appendprop_cell()
1736 * fdt_appendprop_string - append a string to a property
1738 * @nodeoffset: offset of the node whose property to change
1739 * @name: name of the property to change
1740 * @str: string value to append to the property
1743 * the named property in the given node, or creates a new property
1751 * -FDT_ERR_NOSPACE, there is insufficient free space in the blob to
1752 * contain the new property value
1753 * -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
1754 * -FDT_ERR_BADLAYOUT,
1755 * -FDT_ERR_BADMAGIC,
1756 * -FDT_ERR_BADVERSION,
1757 * -FDT_ERR_BADSTATE,
1758 * -FDT_ERR_BADSTRUCTURE,
1759 * -FDT_ERR_BADLAYOUT,
1760 * -FDT_ERR_TRUNCATED, standard meanings
1766 * fdt_delprop - delete a property
1768 * @nodeoffset: offset of the node whose property to nop
1769 * @name: name of the property to nop
1771 * fdt_del_property() will delete the given property.
1778 * -FDT_ERR_NOTFOUND, node does not have the named property
1779 * -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
1780 * -FDT_ERR_BADLAYOUT,
1781 * -FDT_ERR_BADMAGIC,
1782 * -FDT_ERR_BADVERSION,
1783 * -FDT_ERR_BADSTATE,
1784 * -FDT_ERR_BADSTRUCTURE,
1785 * -FDT_ERR_TRUNCATED, standard meanings
1787 int fdt_delprop(void *fdt, int nodeoffset, const char *name);
1790 * fdt_add_subnode_namelen - creates a new node based on substring
1802 int fdt_add_subnode_namelen(void *fdt, int parentoffset,
1803 const char *name, int namelen);
1807 * fdt_add_subnode - creates a new node
1822 * -FDT_ERR_NOTFOUND, if the requested subnode does not exist
1823 * -FDT_ERR_BADOFFSET, if parentoffset did not point to an FDT_BEGIN_NODE
1825 * -FDT_ERR_EXISTS, if the node at parentoffset already has a subnode of
1827 * -FDT_ERR_NOSPACE, if there is insufficient free space in the
1829 * -FDT_ERR_NOSPACE
1830 * -FDT_ERR_BADLAYOUT
1831 * -FDT_ERR_BADMAGIC,
1832 * -FDT_ERR_BADVERSION,
1833 * -FDT_ERR_BADSTATE,
1834 * -FDT_ERR_BADSTRUCTURE,
1835 * -FDT_ERR_TRUNCATED, standard meanings.
1837 int fdt_add_subnode(void *fdt, int parentoffset, const char *name);
1840 * fdt_del_node - delete a node (subtree)
1852 * -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
1853 * -FDT_ERR_BADLAYOUT,
1854 * -FDT_ERR_BADMAGIC,
1855 * -FDT_ERR_BADVERSION,
1856 * -FDT_ERR_BADSTATE,
1857 * -FDT_ERR_BADSTRUCTURE,
1858 * -FDT_ERR_TRUNCATED, standard meanings
1860 int fdt_del_node(void *fdt, int nodeoffset);
1863 * fdt_overlay_apply - Applies a DT overlay on a base DT
1875 * -FDT_ERR_NOSPACE, there's not enough space in the base device tree
1876 * -FDT_ERR_NOTFOUND, the overlay points to some inexistant nodes or
1878 * -FDT_ERR_BADPHANDLE,
1879 * -FDT_ERR_BADOVERLAY,
1880 * -FDT_ERR_NOPHANDLES,
1881 * -FDT_ERR_INTERNAL,
1882 * -FDT_ERR_BADLAYOUT,
1883 * -FDT_ERR_BADMAGIC,
1884 * -FDT_ERR_BADOFFSET,
1885 * -FDT_ERR_BADPATH,
1886 * -FDT_ERR_BADVERSION,
1887 * -FDT_ERR_BADSTRUCTURE,
1888 * -FDT_ERR_BADSTATE,
1889 * -FDT_ERR_TRUNCATED, standard meanings
1891 int fdt_overlay_apply(void *fdt, void *fdto);
1897 const char *fdt_strerror(int errval);