int ft_set_prop(struct ft_cxt *cxt, const void *phandle, const char *propname,
const void *buf, const unsigned int buflen)
{
struct ft_atom atom;
void *node;
char *p, *next;
int nextra, depth;
node = ft_node_ph2node(cxt, phandle);
if (node == NULL)
return -1;
depth = 0;
p = node;
while ((next = ft_next(cxt, p, &atom)) != NULL) {
switch (atom.tag) {
case OF_DT_BEGIN_NODE:
++depth;
break;
case OF_DT_END_NODE:
if (--depth > 0)
break;
/* haven't found the property, insert here */
cxt->p = p;
return ft_prop(cxt, propname, buf, buflen);
case OF_DT_PROP:
if ((depth != 1) || strcmp(atom.name, propname))
break;
/* found an existing property, overwrite it */
nextra = _ALIGN(buflen, 4) - _ALIGN(atom.size, 4);
cxt->p = atom.data;
if (nextra && !ft_make_space(cxt, &cxt->p, FT_STRUCT,
nextra))
return -1;
*(u32 *) (cxt->p - 8) = cpu_to_be32(buflen);
ft_put_bin(cxt, buf, buflen);
return 0;
}
p = next;
}
return -1;
}
int ft_prop_int(struct ft_cxt *cxt, const char *name, unsigned int val)
{
u32 v = cpu_to_be32((u32) val);
return ft_prop(cxt, name, &v, 4);
}
int ft_prop_str(struct ft_cxt *cxt, const char *name, const char *str)
{
return ft_prop(cxt, name, str, strlen(str) + 1);
}
