arch/powerpc/boot/flatdevtree_misc.c

   1 /*
   2  * This file does the necessary interface mapping between the bootwrapper
   3  * device tree operations and the interface provided by shared source
   4  * files flatdevicetree.[ch].
   5  *
   6  * Author: Mark A. Greer <mgreer@mvista.com>
   7  *
   8  * 2006 (c) MontaVista Software, Inc.  This file is licensed under
   9  * the terms of the GNU General Public License version 2.  This program
  10  * is licensed "as is" without any warranty of any kind, whether express
  11  * or implied.
  12  */
  13 #include <stddef.h>
  14 #include "flatdevtree.h"
  15 #include "ops.h"
  16
  17 static struct ft_cxt cxt;
  18
  19 static void *ft_finddevice(const char *name)
  20 {
  21         return ft_find_device(&cxt, name);
  22 }
  23
  24 static int ft_getprop(const void *phandle, const char *propname, void *buf,
  25                 const int buflen)
  26 {
  27         return ft_get_prop(&cxt, phandle, propname, buf, buflen);
  28 }
  29
  30 static int ft_setprop(const void *phandle, const char *propname,
  31                 const void *buf, const int buflen)
  32 {
  33         return ft_set_prop(&cxt, phandle, propname, buf, buflen);
  34 }
  35
  36 static unsigned long ft_finalize(void)
  37 {
  38         ft_end_tree(&cxt);
  39         return (unsigned long)cxt.bph;
  40 }
  41
  42 int ft_init(void *dt_blob, unsigned int max_size, unsigned int max_find_device)
  43 {
  44         dt_ops.finddevice = ft_finddevice;
  45         dt_ops.getprop = ft_getprop;
  46         dt_ops.setprop = ft_setprop;
  47         dt_ops.finalize = ft_finalize;
  48
  49         return ft_open(&cxt, dt_blob, max_size, max_find_device,
  50                         platform_ops.realloc);
  51 }