fdt_wrapper.c File Reference

#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include <types.h>
#include <log.h>
#include "ctype.h"
#include "fdt_wrapper.h"
#include "libfdt.h"

Include dependency graph for fdt_wrapper.c:

Functions
int	fdt_parse_prop (char const **newval, int count, char *data, int *len)
	Parse the property values in the data buffer and return the new value pointers and lengths.
static int	is_printable_string (const void *data, int len)
static void	print_data (const void *data, int len)
int	fdt_print (unsigned char *working_fdt, const char *pathp, char *prop, int depth)
	Print the contents of the device tree at the specified path with a given property and depth.
int	fdt_increase_size (void *fdt, int add_len)
	Increase the size of the flattened device tree by adding additional length.
int	fdt_find_or_add_subnode (void *fdt, int parent_offset, const char *name)
int	fdt_overlay_apply_verbose (void *fdt, void *fdto)
	fdt_overlay_apply_verbose - Apply an overlay with verbose error reporting

Function Documentation

fdt_find_or_add_subnode()

int fdt_find_or_add_subnode	(	void *	fdt,
		int	parent_offset,
		const char *	name
	)

fdt_increase_size()

int fdt_increase_size	(	void *	fdt,
		int	add_len
	)

Increase the size of the flattened device tree by adding additional length.

Parameters

fdt	The pointer to the flattened device tree.
add_len	The additional length to be added to the device tree.

Returns

0 success, other fail

fdt_overlay_apply_verbose()

int fdt_overlay_apply_verbose	(	void *	fdt,
		void *	fdto
	)

fdt_overlay_apply_verbose - Apply an overlay with verbose error reporting

@fdt: ptr to device tree @fdto: ptr to device tree overlay

Convenience function to apply an overlay and display helpful messages in the case of an error

fdt_parse_prop()

int fdt_parse_prop	(	char const **	newval,
		int	count,
		char *	data,
		int *	len
	)

Parse the property values in the data buffer and return the new value pointers and lengths.

Parameters

newval	The pointer to store the new value pointers.
count	The number of properties in the data buffer.
data	The buffer containing the property values.
len	The pointer to store the length of each property value.

Returns

The number of parsed properties.

fdt_print()

int fdt_print	(	unsigned char *	working_fdt,
		const char *	pathp,
		char *	prop,
		int	depth
	)

Print the contents of the device tree at the specified path with a given property and depth.

Parameters

working_fdt	The pointer to the device tree.
pathp	The path of the node to start printing from.
prop	The property name to print.
depth	The maximum depth to traverse while printing.

Returns

The number of printed properties.

is_printable_string()

static int is_printable_string ( const void *  data, int  len  )

static

print_data()

static void print_data ( const void *  data, int  len  )

static