You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
108 lines
3.8 KiB
108 lines
3.8 KiB
18 years ago
|
#ifndef _LIBFDT_H
|
||
|
#define _LIBFDT_H
|
||
|
/*
|
||
|
* libfdt - Flat Device Tree manipulation
|
||
|
* Copyright (C) 2006 David Gibson, IBM Corporation.
|
||
|
*
|
||
|
* This library is free software; you can redistribute it and/or
|
||
|
* modify it under the terms of the GNU Lesser General Public License
|
||
|
* as published by the Free Software Foundation; either version 2.1 of
|
||
|
* the License, or (at your option) any later version.
|
||
|
*
|
||
|
* This library is distributed in the hope that it will be useful, but
|
||
|
* WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||
|
* Lesser General Public License for more details.
|
||
|
*
|
||
|
* You should have received a copy of the GNU Lesser General Public
|
||
|
* License along with this library; if not, write to the Free Software
|
||
|
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||
|
*/
|
||
|
|
||
|
#include <fdt.h>
|
||
|
|
||
|
#define FDT_FIRST_SUPPORTED_VERSION 0x10
|
||
|
#define FDT_LAST_SUPPORTED_VERSION 0x10
|
||
|
|
||
|
/* Errors */
|
||
|
#define FDT_ERR_OK 0
|
||
|
#define FDT_ERR_BADMAGIC 1
|
||
|
#define FDT_ERR_BADVERSION 2
|
||
|
#define FDT_ERR_BADPOINTER 3
|
||
|
#define FDT_ERR_BADHEADER 4
|
||
|
#define FDT_ERR_BADSTRUCTURE 5
|
||
|
#define FDT_ERR_BADOFFSET 6
|
||
|
#define FDT_ERR_NOTFOUND 7
|
||
|
#define FDT_ERR_BADPATH 8
|
||
|
#define FDT_ERR_TRUNCATED 9
|
||
|
#define FDT_ERR_NOSPACE 10
|
||
|
#define FDT_ERR_BADSTATE 11
|
||
|
#define FDT_ERR_SIZE_MISMATCH 12
|
||
|
#define FDT_ERR_INTERNAL 13
|
||
|
|
||
|
#define FDT_ERR_MAX 13
|
||
|
|
||
|
/* Offset handling functions */
|
||
|
void *fdt_offset_ptr(const struct fdt_header *fdt, int offset, int checklen);
|
||
|
|
||
|
#define fdt_offset_ptr_typed(fdt, offset, var) \
|
||
|
((typeof(var))(fdt_offset_ptr((fdt), (offset), sizeof(*(var)))))
|
||
|
|
||
|
#define fdt_offset_error(offset) \
|
||
|
( (offset) < 0 ? -(offset) : 0 )
|
||
|
|
||
|
#define fdt_ptr_error(ptr) \
|
||
|
( (((long)(ptr) < 0) && ((long)(ptr) >= -FDT_ERR_MAX)) ? -(long)(ptr) : 0 )
|
||
|
|
||
|
char *fdt_string(const struct fdt_header *fdt, int stroffset);
|
||
|
int fdt_string_cmp(const struct fdt_header *fdt, int stroffset, const char *s2);
|
||
|
|
||
|
/* Read-only functions */
|
||
|
int fdt_property_offset(const struct fdt_header *fdt, int nodeoffset,
|
||
|
const char *name);
|
||
|
int fdt_subnode_offset_namelen(const struct fdt_header *fdt, int parentoffset,
|
||
|
const char *name, int namelen);
|
||
|
int fdt_subnode_offset(const struct fdt_header *fdt, int parentoffset,
|
||
|
const char *name);
|
||
|
|
||
|
int fdt_path_offset(const struct fdt_header *fdt, const char *path);
|
||
|
|
||
|
void *fdt_getprop(const struct fdt_header *fdt, int nodeoffset,
|
||
|
const char *name, int *lenp);
|
||
|
|
||
|
/* Write-in-place functions */
|
||
|
int fdt_setprop_inplace(struct fdt_header *fdt, int nodeoffset, const char *name,
|
||
|
const void *val, int len);
|
||
|
|
||
|
#define fdt_setprop_inplace_typed(fdt, nodeoffset, name, val) \
|
||
|
({ \
|
||
|
typeof(val) x = val; \
|
||
|
fdt_setprop_inplace(fdt, nodeoffset, name, &x, sizeof(x)); \
|
||
|
})
|
||
|
|
||
|
int fdt_nop_property(struct fdt_header *fdt, int nodeoffset, const char *name);
|
||
|
int fdt_nop_node(struct fdt_header *fdt, int nodeoffset);
|
||
|
|
||
|
#if 0
|
||
|
/* Sequential-write functions */
|
||
|
struct fdt_header *fdt_create(void *buf, int bufsize);
|
||
|
int fdt_add_reservemap_entry(struct fdt_header *fdt, uint64_t addr, uint64_t size);
|
||
|
int fdt_begin_structure(struct fdt_header *fdt);
|
||
|
int fdt_begin_node(struct fdt_header *fdt, const char *name);
|
||
|
int fdt_property(struct fdt_header *fdt, const char *name, const void *val, int len);
|
||
|
int fdt_end_node(struct fdt_header *fdt);
|
||
|
int fdt_finish_structure(struct fdt_header *fdt);
|
||
|
|
||
|
/* Read-write functions */
|
||
|
struct fdt_header *fdt_open(struct fdt_header *fdt, int bufsize);
|
||
|
int fdt_add_subnode(struct fdt_header *fdtx, void *node, const char *name);
|
||
|
int fdt_set_property(struct fdt_header *fdtx, void *node, const char *name,
|
||
|
const void *val, int len);
|
||
|
int fdt_del_property(struct fdt_header *fdtx, void *node, const char *name);
|
||
|
|
||
|
/* Misc functions */
|
||
|
struct fdt_header *fdt_move(struct fdt_header *fdt, void *buf, int bufsize);
|
||
|
#endif
|
||
|
|
||
|
#endif /* _LIBFDT_H */
|