6fb4efc68f
Add the latest version of the flatdevtree code and corresponding glue. A phandle table now tracks values returned by ft_find_device(). The value returned by ft_find_device() is a phandle which is really an index into the phandle table. The phandle table contains the address of the corresponding node. When the flat dt is edited/moved, the node pointers in the phandle table are updated accordingly so no phandles kept by the caller become stale. Signed-off-by: Mark A. Greer <mgreer@mvista.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
56 lines
1.4 KiB
C
56 lines
1.4 KiB
C
/*
|
|
* This file does the necessary interface mapping between the bootwrapper
|
|
* device tree operations and the interface provided by shared source
|
|
* files flatdevicetree.[ch].
|
|
*
|
|
* Author: Mark A. Greer <mgreer@mvista.com>
|
|
*
|
|
* 2006 (c) MontaVista Software, Inc. This file is licensed under
|
|
* the terms of the GNU General Public License version 2. This program
|
|
* is licensed "as is" without any warranty of any kind, whether express
|
|
* or implied.
|
|
*/
|
|
#include <stddef.h>
|
|
#include "flatdevtree.h"
|
|
#include "ops.h"
|
|
|
|
static struct ft_cxt cxt;
|
|
|
|
static void *ft_finddevice(const char *name)
|
|
{
|
|
return ft_find_device(&cxt, name);
|
|
}
|
|
|
|
static int ft_getprop(const void *phandle, const char *propname, void *buf,
|
|
const int buflen)
|
|
{
|
|
return ft_get_prop(&cxt, phandle, propname, buf, buflen);
|
|
}
|
|
|
|
static int ft_setprop(const void *phandle, const char *propname,
|
|
const void *buf, const int buflen)
|
|
{
|
|
return ft_set_prop(&cxt, phandle, propname, buf, buflen);
|
|
}
|
|
|
|
static void ft_pack(void)
|
|
{
|
|
ft_end_tree(&cxt);
|
|
}
|
|
|
|
static unsigned long ft_addr(void)
|
|
{
|
|
return (unsigned long)cxt.bph;
|
|
}
|
|
|
|
int ft_init(void *dt_blob, unsigned int max_size, unsigned int max_find_device)
|
|
{
|
|
dt_ops.finddevice = ft_finddevice;
|
|
dt_ops.getprop = ft_getprop;
|
|
dt_ops.setprop = ft_setprop;
|
|
dt_ops.ft_pack = ft_pack;
|
|
dt_ops.ft_addr = ft_addr;
|
|
|
|
return ft_open(&cxt, dt_blob, max_size, max_find_device,
|
|
platform_ops.realloc);
|
|
}
|