fdt_rw.c File Reference

#include "libfdt_env.h"
#include <fdt.h>
#include <libfdt.h>
#include "libfdt_internal.h"

Include dependency graph for fdt_rw.c:

Macros
#define	FDT_RW_PROBE(fdt)

Functions
static int	fdt_blocks_misordered_ (const void *fdt, int mem_rsv_size, int struct_size)
static int	fdt_rw_probe_ (void *fdt)
static unsigned int	fdt_data_size_ (void *fdt)
static int	fdt_splice_ (void *fdt, void *splicepoint, int oldlen, int newlen)
static int	fdt_splice_mem_rsv_ (void *fdt, struct fdt_reserve_entry *p, int oldn, int newn)
static int	fdt_splice_struct_ (void *fdt, void *p, int oldlen, int newlen)
static void	fdt_del_last_string_ (void *fdt, const char *s)
static int	fdt_splice_string_ (void *fdt, int newlen)
static int	fdt_find_add_string_ (void *fdt, const char *s, int *allocated)
	fdt_find_add_string_() - Find or allocate a string
int	fdt_add_mem_rsv (void *fdt, uint64_t address, uint64_t size)
	fdt_add_mem_rsv - add one memory reserve map entry @fdt: pointer to the device tree blob @address: 64-bit start address of the reserve map entry @size: 64-bit size of the reserved region
int	fdt_del_mem_rsv (void *fdt, int n)
	fdt_del_mem_rsv - remove a memory reserve map entry @fdt: pointer to the device tree blob : entry to remove
static int	fdt_resize_property_ (void *fdt, int nodeoffset, const char *name, int len, struct fdt_property **prop)
static int	fdt_add_property_ (void *fdt, int nodeoffset, const char *name, int len, struct fdt_property **prop)
int	fdt_set_name (void *fdt, int nodeoffset, const char *name)
int	fdt_setprop_placeholder (void *fdt, int nodeoffset, const char *name, int len, void **prop_data)
int	fdt_setprop (void *fdt, int nodeoffset, const char *name, const void *val, int len)
int	fdt_appendprop (void *fdt, int nodeoffset, const char *name, const void *val, int len)
int	fdt_delprop (void *fdt, int nodeoffset, const char *name)
int	fdt_add_subnode_namelen (void *fdt, int parentoffset, const char *name, int namelen)
int	fdt_add_subnode (void *fdt, int parentoffset, const char *name)
int	fdt_del_node (void *fdt, int nodeoffset)
	fdt_del_node - delete a node (subtree) @fdt: pointer to the device tree blob @nodeoffset: offset of the node to nop
static void	fdt_packblocks_ (const char *old, char *new, int mem_rsv_size, int struct_size, int strings_size)
int	fdt_open_into (const void *fdt, void *buf, int bufsize)
int	fdt_pack (void *fdt)

Macro Definition Documentation

FDT_RW_PROBE

#define FDT_RW_PROBE

(

fdt

)

Value:

    {                                         \
        int err_;                             \
        if ((err_ = fdt_rw_probe_(fdt)) != 0) \
            return err_;                      \
    }

Function Documentation

fdt_add_mem_rsv()

int fdt_add_mem_rsv	(	void *	fdt,
		uint64_t	address,
		uint64_t	size
	)

fdt_add_mem_rsv - add one memory reserve map entry @fdt: pointer to the device tree blob @address: 64-bit start address of the reserve map entry @size: 64-bit size of the reserved region

Adds a reserve map entry to the given blob reserving a region at address address of length size.

This function will insert data into the reserve map and will therefore change the indexes of some entries in the table.

returns: 0, on success -FDT_ERR_NOSPACE, there is insufficient free space in the blob to contain the new reservation entry -FDT_ERR_BADMAGIC, -FDT_ERR_BADVERSION, -FDT_ERR_BADSTATE, -FDT_ERR_BADSTRUCTURE, -FDT_ERR_BADLAYOUT, -FDT_ERR_TRUNCATED, standard meanings

fdt_add_property_()

static int fdt_add_property_ ( void *  fdt, int  nodeoffset, const char *  name, int  len, struct fdt_property **  prop  )

static

fdt_add_subnode()

int fdt_add_subnode	(	void *	fdt,
		int	parentoffset,
		const char *	name
	)

fdt_add_subnode_namelen()

int fdt_add_subnode_namelen	(	void *	fdt,
		int	parentoffset,
		const char *	name,
		int	namelen
	)

fdt_appendprop()

int fdt_appendprop	(	void *	fdt,
		int	nodeoffset,
		const char *	name,
		const void *	val,
		int	len
	)

fdt_blocks_misordered_()

static int fdt_blocks_misordered_ ( const void *  fdt, int  mem_rsv_size, int  struct_size  )

static

fdt_data_size_()

static unsigned int fdt_data_size_ ( void *  fdt )

inlinestatic

fdt_del_last_string_()

static void fdt_del_last_string_ ( void *  fdt, const char *  s  )

static

fdt_del_mem_rsv()

int fdt_del_mem_rsv	(	void *	fdt,
		int	n
	)

fdt_del_mem_rsv - remove a memory reserve map entry @fdt: pointer to the device tree blob
: entry to remove

fdt_del_mem_rsv() removes the n-th memory reserve map entry from the blob.

This function will delete data from the reservation table and will therefore change the indexes of some entries in the table.

returns: 0, on success -FDT_ERR_NOTFOUND, there is no entry of the given index (i.e. there are less than n+1 reserve map entries) -FDT_ERR_BADMAGIC, -FDT_ERR_BADVERSION, -FDT_ERR_BADSTATE, -FDT_ERR_BADSTRUCTURE, -FDT_ERR_BADLAYOUT, -FDT_ERR_TRUNCATED, standard meanings

fdt_del_node()

int fdt_del_node	(	void *	fdt,
		int	nodeoffset
	)

fdt_del_node - delete a node (subtree) @fdt: pointer to the device tree blob @nodeoffset: offset of the node to nop

fdt_del_node() will remove the given node, including all its subnodes if any, from the blob.

This function will delete data from the blob, and will therefore change the offsets of some existing nodes.

returns: 0, on success -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_TRUNCATED, standard meanings

fdt_delprop()

int fdt_delprop	(	void *	fdt,
		int	nodeoffset,
		const char *	name
	)

fdt_find_add_string_()

static int fdt_find_add_string_ ( void *  fdt, const char *  s, int *  allocated  )

static

fdt_find_add_string_() - Find or allocate a string

@fdt: pointer to the device tree to check/adjust @s: string to find/add @allocated: Set to 0 if the string was found, 1 if not found and so allocated. Ignored if can_assume(NO_ROLLBACK)

Returns

offset of string in the string table (whether found or added)

fdt_open_into()

int fdt_open_into	(	const void *	fdt,
		void *	buf,
		int	bufsize
	)

fdt_pack()

int fdt_pack

(

void *

fdt

)

fdt_packblocks_()

static void fdt_packblocks_ ( const char *  old, char *  new, int  mem_rsv_size, int  struct_size, int  strings_size  )

static

fdt_resize_property_()

static int fdt_resize_property_ ( void *  fdt, int  nodeoffset, const char *  name, int  len, struct fdt_property **  prop  )

static

fdt_rw_probe_()

static int fdt_rw_probe_ ( void *  fdt )

static

fdt_set_name()

int fdt_set_name	(	void *	fdt,
		int	nodeoffset,
		const char *	name
	)

fdt_setprop()

int fdt_setprop	(	void *	fdt,
		int	nodeoffset,
		const char *	name,
		const void *	val,
		int	len
	)

fdt_setprop_placeholder()

int fdt_setprop_placeholder	(	void *	fdt,
		int	nodeoffset,
		const char *	name,
		int	len,
		void **	prop_data
	)

fdt_splice_()

static int fdt_splice_ ( void *  fdt, void *  splicepoint, int  oldlen, int  newlen  )

static

fdt_splice_mem_rsv_()

static int fdt_splice_mem_rsv_ ( void *  fdt, struct fdt_reserve_entry *  p, int  oldn, int  newn  )

static

fdt_splice_string_()

static int fdt_splice_string_ ( void *  fdt, int  newlen  )

static

fdt_splice_struct_()

static int fdt_splice_struct_ ( void *  fdt, void *  p, int  oldlen, int  newlen  )

static