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kernel/linux-rt-4.4.41/scripts/dtc/libfdt/libfdt_internal.h 3.59 KB
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  #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 */