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