libfdt_internal.h

#ifndef _LIBFDT_INTERNAL_H
#define _LIBFDT_INTERNAL_H
 
/*
 * libfdt - Flat Device Tree manipulation
 * Copyright (C) 2006 David Gibson, IBM Corporation.
 *
 * libfdt is dual licensed: you can use it either under the terms of
 * the GPL, or the BSD license, at your option.
 *
 *  a) This library is free software; you can redistribute it and/or
 *     modify it under the terms of the GNU General Public License as
 *     published by the Free Software Foundation; either version 2 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 General Public License for more details.
 *
 *     You should have received a copy of the GNU 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
 *
 * Alternatively,
 *
 *  b) Redistribution and use in source and binary forms, with or
 *     without modification, are permitted provided that the following
 *     conditions are met:
 *
 *     1. Redistributions of source code must retain the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer.
 *     2. Redistributions in binary form must reproduce the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer in the documentation and/or other materials
 *        provided with the distribution.
 *
 *     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
 *     CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
 *     INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 *     MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 *     DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 *     CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 *     SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 *     NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 *     LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 *     HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 *     CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 *     OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
 *     EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
#include <fdt.h>
 
#define FDT_ALIGN(x, a)  (((x) + (a) - 1) & ~((a) - 1))
#define FDT_TAGALIGN(x)  (FDT_ALIGN((x), FDT_TAGSIZE))
 
#define FDT_CHECK_HEADER(fdt) \
        { \
                int __err; \
                if ((__err = fdt_check_header(fdt)) != 0) \
                        return __err; \
        }
 
int
_fdt_check_node_offset (
  const void  *fdt,
  int         offset
  );
 
int
_fdt_check_prop_offset (
  const void  *fdt,
  int         offset
  );
 
const char *
_fdt_find_string (
  const char  *strtab,
  int         tabsize,
  const char  *s
  );
 
int
_fdt_node_end_offset (
  void  *fdt,
  int   nodeoffset
  );
 
static inline const void *
_fdt_offset_ptr (
  const void  *fdt,
  int         offset
  )
{
  return (const char *)fdt + fdt_off_dt_struct (fdt) + offset;
}
 
static inline void *
_fdt_offset_ptr_w (
  void  *fdt,
  int   offset
  )
{
  return (void *)(uintptr_t)_fdt_offset_ptr (fdt, offset);
}
 
static inline const struct fdt_reserve_entry *
_fdt_mem_rsv (
  const void  *fdt,
  int         n
  )
{
  const struct fdt_reserve_entry  *rsv_table =
    (const struct fdt_reserve_entry *)
    ((const char *)fdt + fdt_off_mem_rsvmap (fdt));
 
  return rsv_table + n;
}
 
static inline struct fdt_reserve_entry *
_fdt_mem_rsv_w (
  void  *fdt,
  int   n
  )
{
  return (void *)(uintptr_t)_fdt_mem_rsv (fdt, n);
}
 
#define FDT_SW_MAGIC  (~FDT_MAGIC)
 
#endif /* _LIBFDT_INTERNAL_H */