EmbeddedPkg/FdtLib: Update FdtLib to v1.4.5
Update the FdtLib so that new APIs provided by FdtLib like fdt_address_cells, fdt_size_cells etc. can be used. Reference code: https://git.kernel.org/pub/scm/utils/dtc/dtc.git/tree/libfdt?h=v1.4.5 Cc: Leif Lindholm <leif.lindholm@linaro.org> Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Pankaj Bansal <pankaj.bansal@nxp.com> Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
This commit is contained in:
Pankaj Bansal
committed by
Ard Biesheuvel
Ard Biesheuvel
parent
0bc94c748b
commit
a099239015
@@ -61,7 +61,7 @@
|
||||
#define FDT_ERR_NOTFOUND 1
|
||||
/* FDT_ERR_NOTFOUND: The requested node or property does not exist */
|
||||
#define FDT_ERR_EXISTS 2
|
||||
/* FDT_ERR_EXISTS: Attemped to create a node or property which
|
||||
/* FDT_ERR_EXISTS: Attempted to create a node or property which
|
||||
* already exists */
|
||||
#define FDT_ERR_NOSPACE 3
|
||||
/* FDT_ERR_NOSPACE: Operation needed to expand the device
|
||||
@@ -79,8 +79,10 @@
|
||||
* (e.g. missing a leading / for a function which requires an
|
||||
* absolute path) */
|
||||
#define FDT_ERR_BADPHANDLE 6
|
||||
/* FDT_ERR_BADPHANDLE: Function was passed an invalid phandle
|
||||
* value. phandle values of 0 and -1 are not permitted. */
|
||||
/* FDT_ERR_BADPHANDLE: Function was passed an invalid phandle.
|
||||
* This can be caused either by an invalid phandle property
|
||||
* length, or the phandle value was either 0 or -1, which are
|
||||
* not permitted. */
|
||||
#define FDT_ERR_BADSTATE 7
|
||||
/* FDT_ERR_BADSTATE: Function was passed an incomplete device
|
||||
* tree created by the sequential-write functions, which is
|
||||
@@ -116,13 +118,34 @@
|
||||
* Should never be returned, if it is, it indicates a bug in
|
||||
* libfdt itself. */
|
||||
|
||||
#define FDT_ERR_MAX 13
|
||||
/* Errors in device tree content */
|
||||
#define FDT_ERR_BADNCELLS 14
|
||||
/* FDT_ERR_BADNCELLS: Device tree has a #address-cells, #size-cells
|
||||
* or similar property with a bad format or value */
|
||||
|
||||
#define FDT_ERR_BADVALUE 15
|
||||
/* FDT_ERR_BADVALUE: Device tree has a property with an unexpected
|
||||
* value. For example: a property expected to contain a string list
|
||||
* is not NUL-terminated within the length of its value. */
|
||||
|
||||
#define FDT_ERR_BADOVERLAY 16
|
||||
/* FDT_ERR_BADOVERLAY: The device tree overlay, while
|
||||
* correctly structured, cannot be applied due to some
|
||||
* unexpected or missing value, property or node. */
|
||||
|
||||
#define FDT_ERR_NOPHANDLES 17
|
||||
/* FDT_ERR_NOPHANDLES: The device tree doesn't have any
|
||||
* phandle available anymore without causing an overflow */
|
||||
|
||||
#define FDT_ERR_MAX 17
|
||||
|
||||
/**********************************************************************/
|
||||
/* Low-level functions (you probably don't need these) */
|
||||
/**********************************************************************/
|
||||
|
||||
#ifndef SWIG /* This function is not useful in Python */
|
||||
const void *fdt_offset_ptr(const void *fdt, int offset, unsigned int checklen);
|
||||
#endif
|
||||
static inline void *fdt_offset_ptr_w(void *fdt, int offset, int checklen)
|
||||
{
|
||||
return (void *)(uintptr_t)fdt_offset_ptr(fdt, offset, checklen);
|
||||
@@ -158,27 +181,54 @@ int fdt_first_subnode(const void *fdt, int offset);
|
||||
*/
|
||||
int fdt_next_subnode(const void *fdt, int offset);
|
||||
|
||||
/**
|
||||
* fdt_for_each_subnode - iterate over all subnodes of a parent
|
||||
*
|
||||
* @node: child node (int, lvalue)
|
||||
* @fdt: FDT blob (const void *)
|
||||
* @parent: parent node (int)
|
||||
*
|
||||
* This is actually a wrapper around a for loop and would be used like so:
|
||||
*
|
||||
* fdt_for_each_subnode(node, fdt, parent) {
|
||||
* Use node
|
||||
* ...
|
||||
* }
|
||||
*
|
||||
* if ((node < 0) && (node != -FDT_ERR_NOT_FOUND)) {
|
||||
* Error handling
|
||||
* }
|
||||
*
|
||||
* Note that this is implemented as a macro and @node is used as
|
||||
* iterator in the loop. The parent variable be constant or even a
|
||||
* literal.
|
||||
*
|
||||
*/
|
||||
#define fdt_for_each_subnode(node, fdt, parent) \
|
||||
for (node = fdt_first_subnode(fdt, parent); \
|
||||
node >= 0; \
|
||||
node = fdt_next_subnode(fdt, node))
|
||||
|
||||
/**********************************************************************/
|
||||
/* General functions */
|
||||
/**********************************************************************/
|
||||
|
||||
#define fdt_get_header(fdt, field) \
|
||||
(fdt32_to_cpu(((const struct fdt_header *)(fdt))->field))
|
||||
#define fdt_magic(fdt) (fdt_get_header(fdt, magic))
|
||||
#define fdt_magic(fdt) (fdt_get_header(fdt, magic))
|
||||
#define fdt_totalsize(fdt) (fdt_get_header(fdt, totalsize))
|
||||
#define fdt_off_dt_struct(fdt) (fdt_get_header(fdt, off_dt_struct))
|
||||
#define fdt_off_dt_strings(fdt) (fdt_get_header(fdt, off_dt_strings))
|
||||
#define fdt_off_mem_rsvmap(fdt) (fdt_get_header(fdt, off_mem_rsvmap))
|
||||
#define fdt_version(fdt) (fdt_get_header(fdt, version))
|
||||
#define fdt_last_comp_version(fdt) (fdt_get_header(fdt, last_comp_version))
|
||||
#define fdt_boot_cpuid_phys(fdt) (fdt_get_header(fdt, boot_cpuid_phys))
|
||||
#define fdt_size_dt_strings(fdt) (fdt_get_header(fdt, size_dt_strings))
|
||||
#define fdt_last_comp_version(fdt) (fdt_get_header(fdt, last_comp_version))
|
||||
#define fdt_boot_cpuid_phys(fdt) (fdt_get_header(fdt, boot_cpuid_phys))
|
||||
#define fdt_size_dt_strings(fdt) (fdt_get_header(fdt, size_dt_strings))
|
||||
#define fdt_size_dt_struct(fdt) (fdt_get_header(fdt, size_dt_struct))
|
||||
|
||||
#define __fdt_set_hdr(name) \
|
||||
static inline void fdt_set_##name(void *fdt, uint32_t val) \
|
||||
{ \
|
||||
struct fdt_header *fdth = (struct fdt_header*)fdt; \
|
||||
struct fdt_header *fdth = (struct fdt_header *)fdt; \
|
||||
fdth->name = cpu_to_fdt32(val); \
|
||||
}
|
||||
__fdt_set_hdr(magic);
|
||||
@@ -248,6 +298,21 @@ int fdt_move(const void *fdt, void *buf, int bufsize);
|
||||
*/
|
||||
const char *fdt_string(const void *fdt, int stroffset);
|
||||
|
||||
/**
|
||||
* fdt_get_max_phandle - retrieves the highest phandle in a tree
|
||||
* @fdt: pointer to the device tree blob
|
||||
*
|
||||
* fdt_get_max_phandle retrieves the highest phandle in the given
|
||||
* device tree. This will ignore badly formatted phandles, or phandles
|
||||
* with a value of 0 or -1.
|
||||
*
|
||||
* returns:
|
||||
* the highest phandle on success
|
||||
* 0, if no phandle was found in the device tree
|
||||
* -1, if an error occurred
|
||||
*/
|
||||
uint32_t fdt_get_max_phandle(const void *fdt);
|
||||
|
||||
/**
|
||||
* fdt_num_mem_rsv - retrieve the number of memory reserve map entries
|
||||
* @fdt: pointer to the device tree blob
|
||||
@@ -290,8 +355,10 @@ int fdt_get_mem_rsv(const void *fdt, int n, uint64_t *address, uint64_t *size);
|
||||
* useful for finding subnodes based on a portion of a larger string,
|
||||
* such as a full path.
|
||||
*/
|
||||
#ifndef SWIG /* Not available in Python */
|
||||
int fdt_subnode_offset_namelen(const void *fdt, int parentoffset,
|
||||
const char *name, int namelen);
|
||||
#endif
|
||||
/**
|
||||
* fdt_subnode_offset - find a subnode of a given node
|
||||
* @fdt: pointer to the device tree blob
|
||||
@@ -308,8 +375,9 @@ int fdt_subnode_offset_namelen(const void *fdt, int parentoffset,
|
||||
* returns:
|
||||
* structure block offset of the requested subnode (>=0), on success
|
||||
* -FDT_ERR_NOTFOUND, if the requested subnode does not exist
|
||||
* -FDT_ERR_BADOFFSET, if parentoffset did not point to an FDT_BEGIN_NODE tag
|
||||
* -FDT_ERR_BADMAGIC,
|
||||
* -FDT_ERR_BADOFFSET, if parentoffset did not point to an FDT_BEGIN_NODE
|
||||
* tag
|
||||
* -FDT_ERR_BADMAGIC,
|
||||
* -FDT_ERR_BADVERSION,
|
||||
* -FDT_ERR_BADSTATE,
|
||||
* -FDT_ERR_BADSTRUCTURE,
|
||||
@@ -317,6 +385,19 @@ int fdt_subnode_offset_namelen(const void *fdt, int parentoffset,
|
||||
*/
|
||||
int fdt_subnode_offset(const void *fdt, int parentoffset, const char *name);
|
||||
|
||||
/**
|
||||
* fdt_path_offset_namelen - find a tree node by its full path
|
||||
* @fdt: pointer to the device tree blob
|
||||
* @path: full path of the node to locate
|
||||
* @namelen: number of characters of path to consider
|
||||
*
|
||||
* Identical to fdt_path_offset(), but only consider the first namelen
|
||||
* characters of path as the path name.
|
||||
*/
|
||||
#ifndef SWIG /* Not available in Python */
|
||||
int fdt_path_offset_namelen(const void *fdt, const char *path, int namelen);
|
||||
#endif
|
||||
|
||||
/**
|
||||
* fdt_path_offset - find a tree node by its full path
|
||||
* @fdt: pointer to the device tree blob
|
||||
@@ -330,7 +411,8 @@ int fdt_subnode_offset(const void *fdt, int parentoffset, const char *name);
|
||||
* address).
|
||||
*
|
||||
* returns:
|
||||
* structure block offset of the node with the requested path (>=0), on success
|
||||
* structure block offset of the node with the requested path (>=0), on
|
||||
* success
|
||||
* -FDT_ERR_BADPATH, given path does not begin with '/' or is invalid
|
||||
* -FDT_ERR_NOTFOUND, if the requested node does not exist
|
||||
* -FDT_ERR_BADMAGIC,
|
||||
@@ -354,10 +436,12 @@ int fdt_path_offset(const void *fdt, const char *path);
|
||||
*
|
||||
* returns:
|
||||
* pointer to the node's name, on success
|
||||
* If lenp is non-NULL, *lenp contains the length of that name (>=0)
|
||||
* If lenp is non-NULL, *lenp contains the length of that name
|
||||
* (>=0)
|
||||
* NULL, on error
|
||||
* if lenp is non-NULL *lenp contains an error code (<0):
|
||||
* -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
|
||||
* -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE
|
||||
* tag
|
||||
* -FDT_ERR_BADMAGIC,
|
||||
* -FDT_ERR_BADVERSION,
|
||||
* -FDT_ERR_BADSTATE, standard meanings
|
||||
@@ -405,6 +489,33 @@ int fdt_first_property_offset(const void *fdt, int nodeoffset);
|
||||
*/
|
||||
int fdt_next_property_offset(const void *fdt, int offset);
|
||||
|
||||
/**
|
||||
* fdt_for_each_property_offset - iterate over all properties of a node
|
||||
*
|
||||
* @property_offset: property offset (int, lvalue)
|
||||
* @fdt: FDT blob (const void *)
|
||||
* @node: node offset (int)
|
||||
*
|
||||
* This is actually a wrapper around a for loop and would be used like so:
|
||||
*
|
||||
* fdt_for_each_property_offset(property, fdt, node) {
|
||||
* Use property
|
||||
* ...
|
||||
* }
|
||||
*
|
||||
* if ((property < 0) && (property != -FDT_ERR_NOT_FOUND)) {
|
||||
* Error handling
|
||||
* }
|
||||
*
|
||||
* Note that this is implemented as a macro and property is used as
|
||||
* iterator in the loop. The node variable can be constant or even a
|
||||
* literal.
|
||||
*/
|
||||
#define fdt_for_each_property_offset(property, fdt, node) \
|
||||
for (property = fdt_first_property_offset(fdt, node); \
|
||||
property >= 0; \
|
||||
property = fdt_next_property_offset(fdt, property))
|
||||
|
||||
/**
|
||||
* fdt_get_property_by_offset - retrieve the property at a given offset
|
||||
* @fdt: pointer to the device tree blob
|
||||
@@ -441,13 +552,15 @@ const struct fdt_property *fdt_get_property_by_offset(const void *fdt,
|
||||
* @namelen: number of characters of name to consider
|
||||
* @lenp: pointer to an integer variable (will be overwritten) or NULL
|
||||
*
|
||||
* Identical to fdt_get_property_namelen(), but only examine the first
|
||||
* namelen characters of name for matching the property name.
|
||||
* Identical to fdt_get_property(), but only examine the first namelen
|
||||
* characters of name for matching the property name.
|
||||
*/
|
||||
#ifndef SWIG /* Not available in Python */
|
||||
const struct fdt_property *fdt_get_property_namelen(const void *fdt,
|
||||
int nodeoffset,
|
||||
const char *name,
|
||||
int namelen, int *lenp);
|
||||
#endif
|
||||
|
||||
/**
|
||||
* fdt_get_property - find a given property in a given node
|
||||
@@ -469,7 +582,8 @@ const struct fdt_property *fdt_get_property_namelen(const void *fdt,
|
||||
* NULL, on error
|
||||
* if lenp is non-NULL, *lenp contains an error code (<0):
|
||||
* -FDT_ERR_NOTFOUND, node does not have named property
|
||||
* -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
|
||||
* -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE
|
||||
* tag
|
||||
* -FDT_ERR_BADMAGIC,
|
||||
* -FDT_ERR_BADVERSION,
|
||||
* -FDT_ERR_BADSTATE,
|
||||
@@ -517,8 +631,10 @@ static inline struct fdt_property *fdt_get_property_w(void *fdt, int nodeoffset,
|
||||
* -FDT_ERR_BADSTRUCTURE,
|
||||
* -FDT_ERR_TRUNCATED, standard meanings
|
||||
*/
|
||||
#ifndef SWIG /* This function is not useful in Python */
|
||||
const void *fdt_getprop_by_offset(const void *fdt, int offset,
|
||||
const char **namep, int *lenp);
|
||||
#endif
|
||||
|
||||
/**
|
||||
* fdt_getprop_namelen - get property value based on substring
|
||||
@@ -531,8 +647,17 @@ const void *fdt_getprop_by_offset(const void *fdt, int offset,
|
||||
* Identical to fdt_getprop(), but only examine the first namelen
|
||||
* characters of name for matching the property name.
|
||||
*/
|
||||
#ifndef SWIG /* Not available in Python */
|
||||
const void *fdt_getprop_namelen(const void *fdt, int nodeoffset,
|
||||
const char *name, int namelen, int *lenp);
|
||||
static inline void *fdt_getprop_namelen_w(void *fdt, int nodeoffset,
|
||||
const char *name, int namelen,
|
||||
int *lenp)
|
||||
{
|
||||
return (void *)(uintptr_t)fdt_getprop_namelen(fdt, nodeoffset, name,
|
||||
namelen, lenp);
|
||||
}
|
||||
#endif
|
||||
|
||||
/**
|
||||
* fdt_getprop - retrieve the value of a given property
|
||||
@@ -554,7 +679,8 @@ const void *fdt_getprop_namelen(const void *fdt, int nodeoffset,
|
||||
* NULL, on error
|
||||
* if lenp is non-NULL, *lenp contains an error code (<0):
|
||||
* -FDT_ERR_NOTFOUND, node does not have named property
|
||||
* -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
|
||||
* -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE
|
||||
* tag
|
||||
* -FDT_ERR_BADMAGIC,
|
||||
* -FDT_ERR_BADVERSION,
|
||||
* -FDT_ERR_BADSTATE,
|
||||
@@ -592,11 +718,13 @@ uint32_t fdt_get_phandle(const void *fdt, int nodeoffset);
|
||||
* Identical to fdt_get_alias(), but only examine the first namelen
|
||||
* characters of name for matching the alias name.
|
||||
*/
|
||||
#ifndef SWIG /* Not available in Python */
|
||||
const char *fdt_get_alias_namelen(const void *fdt,
|
||||
const char *name, int namelen);
|
||||
#endif
|
||||
|
||||
/**
|
||||
* fdt_get_alias - retreive the path referenced by a given alias
|
||||
* fdt_get_alias - retrieve the path referenced by a given alias
|
||||
* @fdt: pointer to the device tree blob
|
||||
* @name: name of the alias th look up
|
||||
*
|
||||
@@ -626,7 +754,7 @@ const char *fdt_get_alias(const void *fdt, const char *name);
|
||||
* 0, on success
|
||||
* buf contains the absolute path of the node at
|
||||
* nodeoffset, as a NUL-terminated string.
|
||||
* -FDT_ERR_BADOFFSET, nodeoffset does not refer to a BEGIN_NODE tag
|
||||
* -FDT_ERR_BADOFFSET, nodeoffset does not refer to a BEGIN_NODE tag
|
||||
* -FDT_ERR_NOSPACE, the path of the given node is longer than (bufsize-1)
|
||||
* characters and will not fit in the given buffer.
|
||||
* -FDT_ERR_BADMAGIC,
|
||||
@@ -656,11 +784,11 @@ int fdt_get_path(const void *fdt, int nodeoffset, char *buf, int buflen);
|
||||
* structure from the start to nodeoffset.
|
||||
*
|
||||
* returns:
|
||||
|
||||
* structure block offset of the node at node offset's ancestor
|
||||
* of depth supernodedepth (>=0), on success
|
||||
* -FDT_ERR_BADOFFSET, nodeoffset does not refer to a BEGIN_NODE tag
|
||||
* -FDT_ERR_NOTFOUND, supernodedepth was greater than the depth of nodeoffset
|
||||
* -FDT_ERR_BADOFFSET, nodeoffset does not refer to a BEGIN_NODE tag
|
||||
* -FDT_ERR_NOTFOUND, supernodedepth was greater than the depth of
|
||||
* nodeoffset
|
||||
* -FDT_ERR_BADMAGIC,
|
||||
* -FDT_ERR_BADVERSION,
|
||||
* -FDT_ERR_BADSTATE,
|
||||
@@ -682,7 +810,7 @@ int fdt_supernode_atdepth_offset(const void *fdt, int nodeoffset,
|
||||
*
|
||||
* returns:
|
||||
* depth of the node at nodeoffset (>=0), on success
|
||||
* -FDT_ERR_BADOFFSET, nodeoffset does not refer to a BEGIN_NODE tag
|
||||
* -FDT_ERR_BADOFFSET, nodeoffset does not refer to a BEGIN_NODE tag
|
||||
* -FDT_ERR_BADMAGIC,
|
||||
* -FDT_ERR_BADVERSION,
|
||||
* -FDT_ERR_BADSTATE,
|
||||
@@ -705,7 +833,7 @@ int fdt_node_depth(const void *fdt, int nodeoffset);
|
||||
* returns:
|
||||
* structure block offset of the parent of the node at nodeoffset
|
||||
* (>=0), on success
|
||||
* -FDT_ERR_BADOFFSET, nodeoffset does not refer to a BEGIN_NODE tag
|
||||
* -FDT_ERR_BADOFFSET, nodeoffset does not refer to a BEGIN_NODE tag
|
||||
* -FDT_ERR_BADMAGIC,
|
||||
* -FDT_ERR_BADVERSION,
|
||||
* -FDT_ERR_BADSTATE,
|
||||
@@ -745,7 +873,7 @@ int fdt_parent_offset(const void *fdt, int nodeoffset);
|
||||
* on success
|
||||
* -FDT_ERR_NOTFOUND, no node matching the criterion exists in the
|
||||
* tree after startoffset
|
||||
* -FDT_ERR_BADOFFSET, nodeoffset does not refer to a BEGIN_NODE tag
|
||||
* -FDT_ERR_BADOFFSET, nodeoffset does not refer to a BEGIN_NODE tag
|
||||
* -FDT_ERR_BADMAGIC,
|
||||
* -FDT_ERR_BADVERSION,
|
||||
* -FDT_ERR_BADSTATE,
|
||||
@@ -792,7 +920,7 @@ int fdt_node_offset_by_phandle(const void *fdt, uint32_t phandle);
|
||||
* 1, if the node has a 'compatible' property, but it does not list
|
||||
* the given string
|
||||
* -FDT_ERR_NOTFOUND, if the given node has no 'compatible' property
|
||||
* -FDT_ERR_BADOFFSET, if nodeoffset does not refer to a BEGIN_NODE tag
|
||||
* -FDT_ERR_BADOFFSET, if nodeoffset does not refer to a BEGIN_NODE tag
|
||||
* -FDT_ERR_BADMAGIC,
|
||||
* -FDT_ERR_BADVERSION,
|
||||
* -FDT_ERR_BADSTATE,
|
||||
@@ -829,7 +957,7 @@ int fdt_node_check_compatible(const void *fdt, int nodeoffset,
|
||||
* on success
|
||||
* -FDT_ERR_NOTFOUND, no node matching the criterion exists in the
|
||||
* tree after startoffset
|
||||
* -FDT_ERR_BADOFFSET, nodeoffset does not refer to a BEGIN_NODE tag
|
||||
* -FDT_ERR_BADOFFSET, nodeoffset does not refer to a BEGIN_NODE tag
|
||||
* -FDT_ERR_BADMAGIC,
|
||||
* -FDT_ERR_BADVERSION,
|
||||
* -FDT_ERR_BADSTATE,
|
||||
@@ -852,10 +980,152 @@ int fdt_node_offset_by_compatible(const void *fdt, int startoffset,
|
||||
*/
|
||||
int fdt_stringlist_contains(const char *strlist, int listlen, const char *str);
|
||||
|
||||
/**
|
||||
* fdt_stringlist_count - count the number of strings in a string list
|
||||
* @fdt: pointer to the device tree blob
|
||||
* @nodeoffset: offset of a tree node
|
||||
* @property: name of the property containing the string list
|
||||
* @return:
|
||||
* the number of strings in the given property
|
||||
* -FDT_ERR_BADVALUE if the property value is not NUL-terminated
|
||||
* -FDT_ERR_NOTFOUND if the property does not exist
|
||||
*/
|
||||
int fdt_stringlist_count(const void *fdt, int nodeoffset, const char *property);
|
||||
|
||||
/**
|
||||
* fdt_stringlist_search - find a string in a string list and return its index
|
||||
* @fdt: pointer to the device tree blob
|
||||
* @nodeoffset: offset of a tree node
|
||||
* @property: name of the property containing the string list
|
||||
* @string: string to look up in the string list
|
||||
*
|
||||
* Note that it is possible for this function to succeed on property values
|
||||
* that are not NUL-terminated. That's because the function will stop after
|
||||
* finding the first occurrence of @string. This can for example happen with
|
||||
* small-valued cell properties, such as #address-cells, when searching for
|
||||
* the empty string.
|
||||
*
|
||||
* @return:
|
||||
* the index of the string in the list of strings
|
||||
* -FDT_ERR_BADVALUE if the property value is not NUL-terminated
|
||||
* -FDT_ERR_NOTFOUND if the property does not exist or does not contain
|
||||
* the given string
|
||||
*/
|
||||
int fdt_stringlist_search(const void *fdt, int nodeoffset, const char *property,
|
||||
const char *string);
|
||||
|
||||
/**
|
||||
* fdt_stringlist_get() - obtain the string at a given index in a string list
|
||||
* @fdt: pointer to the device tree blob
|
||||
* @nodeoffset: offset of a tree node
|
||||
* @property: name of the property containing the string list
|
||||
* @index: index of the string to return
|
||||
* @lenp: return location for the string length or an error code on failure
|
||||
*
|
||||
* Note that this will successfully extract strings from properties with
|
||||
* non-NUL-terminated values. For example on small-valued cell properties
|
||||
* this function will return the empty string.
|
||||
*
|
||||
* If non-NULL, the length of the string (on success) or a negative error-code
|
||||
* (on failure) will be stored in the integer pointer to by lenp.
|
||||
*
|
||||
* @return:
|
||||
* A pointer to the string at the given index in the string list or NULL on
|
||||
* failure. On success the length of the string will be stored in the memory
|
||||
* location pointed to by the lenp parameter, if non-NULL. On failure one of
|
||||
* the following negative error codes will be returned in the lenp parameter
|
||||
* (if non-NULL):
|
||||
* -FDT_ERR_BADVALUE if the property value is not NUL-terminated
|
||||
* -FDT_ERR_NOTFOUND if the property does not exist
|
||||
*/
|
||||
const char *fdt_stringlist_get(const void *fdt, int nodeoffset,
|
||||
const char *property, int index,
|
||||
int *lenp);
|
||||
|
||||
/**********************************************************************/
|
||||
/* Read-only functions (addressing related) */
|
||||
/**********************************************************************/
|
||||
|
||||
/**
|
||||
* FDT_MAX_NCELLS - maximum value for #address-cells and #size-cells
|
||||
*
|
||||
* This is the maximum value for #address-cells, #size-cells and
|
||||
* similar properties that will be processed by libfdt. IEE1275
|
||||
* requires that OF implementations handle values up to 4.
|
||||
* Implementations may support larger values, but in practice higher
|
||||
* values aren't used.
|
||||
*/
|
||||
#define FDT_MAX_NCELLS 4
|
||||
|
||||
/**
|
||||
* fdt_address_cells - retrieve address size for a bus represented in the tree
|
||||
* @fdt: pointer to the device tree blob
|
||||
* @nodeoffset: offset of the node to find the address size for
|
||||
*
|
||||
* When the node has a valid #address-cells property, returns its value.
|
||||
*
|
||||
* returns:
|
||||
* 0 <= n < FDT_MAX_NCELLS, on success
|
||||
* 2, if the node has no #address-cells property
|
||||
* -FDT_ERR_BADNCELLS, if the node has a badly formatted or invalid
|
||||
* #address-cells property
|
||||
* -FDT_ERR_BADMAGIC,
|
||||
* -FDT_ERR_BADVERSION,
|
||||
* -FDT_ERR_BADSTATE,
|
||||
* -FDT_ERR_BADSTRUCTURE,
|
||||
* -FDT_ERR_TRUNCATED, standard meanings
|
||||
*/
|
||||
int fdt_address_cells(const void *fdt, int nodeoffset);
|
||||
|
||||
/**
|
||||
* fdt_size_cells - retrieve address range size for a bus represented in the
|
||||
* tree
|
||||
* @fdt: pointer to the device tree blob
|
||||
* @nodeoffset: offset of the node to find the address range size for
|
||||
*
|
||||
* When the node has a valid #size-cells property, returns its value.
|
||||
*
|
||||
* returns:
|
||||
* 0 <= n < FDT_MAX_NCELLS, on success
|
||||
* 2, if the node has no #address-cells property
|
||||
* -FDT_ERR_BADNCELLS, if the node has a badly formatted or invalid
|
||||
* #size-cells property
|
||||
* -FDT_ERR_BADMAGIC,
|
||||
* -FDT_ERR_BADVERSION,
|
||||
* -FDT_ERR_BADSTATE,
|
||||
* -FDT_ERR_BADSTRUCTURE,
|
||||
* -FDT_ERR_TRUNCATED, standard meanings
|
||||
*/
|
||||
int fdt_size_cells(const void *fdt, int nodeoffset);
|
||||
|
||||
|
||||
/**********************************************************************/
|
||||
/* Write-in-place functions */
|
||||
/**********************************************************************/
|
||||
|
||||
/**
|
||||
* fdt_setprop_inplace_namelen_partial - change a property's value,
|
||||
* but not its size
|
||||
* @fdt: pointer to the device tree blob
|
||||
* @nodeoffset: offset of the node whose property to change
|
||||
* @name: name of the property to change
|
||||
* @namelen: number of characters of name to consider
|
||||
* @idx: index of the property to change in the array
|
||||
* @val: pointer to data to replace the property value with
|
||||
* @len: length of the property value
|
||||
*
|
||||
* Identical to fdt_setprop_inplace(), but modifies the given property
|
||||
* starting from the given index, and using only the first characters
|
||||
* of the name. It is useful when you want to manipulate only one value of
|
||||
* an array and you have a string that doesn't end with \0.
|
||||
*/
|
||||
#ifndef SWIG /* Not available in Python */
|
||||
int fdt_setprop_inplace_namelen_partial(void *fdt, int nodeoffset,
|
||||
const char *name, int namelen,
|
||||
uint32_t idx, const void *val,
|
||||
int len);
|
||||
#endif
|
||||
|
||||
/**
|
||||
* fdt_setprop_inplace - change a property's value, but not its size
|
||||
* @fdt: pointer to the device tree blob
|
||||
@@ -884,8 +1154,10 @@ int fdt_stringlist_contains(const char *strlist, int listlen, const char *str);
|
||||
* -FDT_ERR_BADSTRUCTURE,
|
||||
* -FDT_ERR_TRUNCATED, standard meanings
|
||||
*/
|
||||
#ifndef SWIG /* Not available in Python */
|
||||
int fdt_setprop_inplace(void *fdt, int nodeoffset, const char *name,
|
||||
const void *val, int len);
|
||||
#endif
|
||||
|
||||
/**
|
||||
* fdt_setprop_inplace_u32 - change the value of a 32-bit integer property
|
||||
@@ -1023,6 +1295,7 @@ int fdt_nop_node(void *fdt, int nodeoffset);
|
||||
/**********************************************************************/
|
||||
|
||||
int fdt_create(void *buf, int bufsize);
|
||||
int fdt_resize(void *fdt, void *buf, int bufsize);
|
||||
int fdt_add_reservemap_entry(void *fdt, uint64_t addr, uint64_t size);
|
||||
int fdt_finish_reservemap(void *fdt);
|
||||
int fdt_begin_node(void *fdt, const char *name);
|
||||
@@ -1041,6 +1314,22 @@ static inline int fdt_property_cell(void *fdt, const char *name, uint32_t val)
|
||||
{
|
||||
return fdt_property_u32(fdt, name, val);
|
||||
}
|
||||
|
||||
/**
|
||||
* fdt_property_placeholder - add a new property and return a ptr to its value
|
||||
*
|
||||
* @fdt: pointer to the device tree blob
|
||||
* @name: name of property to add
|
||||
* @len: length of property value in bytes
|
||||
* @valp: returns a pointer to where where the value should be placed
|
||||
*
|
||||
* returns:
|
||||
* 0, on success
|
||||
* -FDT_ERR_BADMAGIC,
|
||||
* -FDT_ERR_NOSPACE, standard meanings
|
||||
*/
|
||||
int fdt_property_placeholder(void *fdt, const char *name, int len, void **valp);
|
||||
|
||||
#define fdt_property_string(fdt, name, str) \
|
||||
fdt_property(fdt, name, str, strlen(str)+1)
|
||||
int fdt_end_node(void *fdt);
|
||||
@@ -1159,6 +1448,37 @@ int fdt_set_name(void *fdt, int nodeoffset, const char *name);
|
||||
int fdt_setprop(void *fdt, int nodeoffset, const char *name,
|
||||
const void *val, int len);
|
||||
|
||||
/**
|
||||
* fdt_setprop _placeholder - allocate space for a property
|
||||
* @fdt: pointer to the device tree blob
|
||||
* @nodeoffset: offset of the node whose property to change
|
||||
* @name: name of the property to change
|
||||
* @len: length of the property value
|
||||
* @prop_data: return pointer to property data
|
||||
*
|
||||
* fdt_setprop_placeholer() allocates the named property in the given node.
|
||||
* If the property exists it is resized. In either case a pointer to the
|
||||
* property data is returned.
|
||||
*
|
||||
* This function may insert or delete data from the blob, and will
|
||||
* therefore change the offsets of some existing nodes.
|
||||
*
|
||||
* returns:
|
||||
* 0, on success
|
||||
* -FDT_ERR_NOSPACE, there is insufficient free space in the blob to
|
||||
* contain the new property value
|
||||
* -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
|
||||
* -FDT_ERR_BADLAYOUT,
|
||||
* -FDT_ERR_BADMAGIC,
|
||||
* -FDT_ERR_BADVERSION,
|
||||
* -FDT_ERR_BADSTATE,
|
||||
* -FDT_ERR_BADSTRUCTURE,
|
||||
* -FDT_ERR_BADLAYOUT,
|
||||
* -FDT_ERR_TRUNCATED, standard meanings
|
||||
*/
|
||||
int fdt_setprop_placeholder(void *fdt, int nodeoffset, const char *name,
|
||||
int len, void **prop_data);
|
||||
|
||||
/**
|
||||
* fdt_setprop_u32 - set a property to a 32-bit integer
|
||||
* @fdt: pointer to the device tree blob
|
||||
@@ -1271,6 +1591,36 @@ static inline int fdt_setprop_cell(void *fdt, int nodeoffset, const char *name,
|
||||
#define fdt_setprop_string(fdt, nodeoffset, name, str) \
|
||||
fdt_setprop((fdt), (nodeoffset), (name), (str), strlen(str)+1)
|
||||
|
||||
|
||||
/**
|
||||
* fdt_setprop_empty - set a property to an empty value
|
||||
* @fdt: pointer to the device tree blob
|
||||
* @nodeoffset: offset of the node whose property to change
|
||||
* @name: name of the property to change
|
||||
*
|
||||
* fdt_setprop_empty() sets the value of the named property in the
|
||||
* given node to an empty (zero length) value, or creates a new empty
|
||||
* property if it does not already exist.
|
||||
*
|
||||
* This function may insert or delete data from the blob, and will
|
||||
* therefore change the offsets of some existing nodes.
|
||||
*
|
||||
* returns:
|
||||
* 0, on success
|
||||
* -FDT_ERR_NOSPACE, there is insufficient free space in the blob to
|
||||
* contain the new property value
|
||||
* -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
|
||||
* -FDT_ERR_BADLAYOUT,
|
||||
* -FDT_ERR_BADMAGIC,
|
||||
* -FDT_ERR_BADVERSION,
|
||||
* -FDT_ERR_BADSTATE,
|
||||
* -FDT_ERR_BADSTRUCTURE,
|
||||
* -FDT_ERR_BADLAYOUT,
|
||||
* -FDT_ERR_TRUNCATED, standard meanings
|
||||
*/
|
||||
#define fdt_setprop_empty(fdt, nodeoffset, name) \
|
||||
fdt_setprop((fdt), (nodeoffset), (name), NULL, 0)
|
||||
|
||||
/**
|
||||
* fdt_appendprop - append to or create a property
|
||||
* @fdt: pointer to the device tree blob
|
||||
@@ -1448,8 +1798,10 @@ int fdt_delprop(void *fdt, int nodeoffset, const char *name);
|
||||
* creating subnodes based on a portion of a larger string, such as a
|
||||
* full path.
|
||||
*/
|
||||
#ifndef SWIG /* Not available in Python */
|
||||
int fdt_add_subnode_namelen(void *fdt, int parentoffset,
|
||||
const char *name, int namelen);
|
||||
#endif
|
||||
|
||||
/**
|
||||
* fdt_add_subnode - creates a new node
|
||||
@@ -1465,9 +1817,11 @@ int fdt_add_subnode_namelen(void *fdt, int parentoffset,
|
||||
* change the offsets of some existing nodes.
|
||||
|
||||
* returns:
|
||||
* structure block offset of the created nodeequested subnode (>=0), on success
|
||||
* structure block offset of the created nodeequested subnode (>=0), on
|
||||
* success
|
||||
* -FDT_ERR_NOTFOUND, if the requested subnode does not exist
|
||||
* -FDT_ERR_BADOFFSET, if parentoffset did not point to an FDT_BEGIN_NODE tag
|
||||
* -FDT_ERR_BADOFFSET, if parentoffset did not point to an FDT_BEGIN_NODE
|
||||
* tag
|
||||
* -FDT_ERR_EXISTS, if the node at parentoffset already has a subnode of
|
||||
* the given name
|
||||
* -FDT_ERR_NOSPACE, if there is insufficient free space in the
|
||||
|
||||
Reference in New Issue
Block a user