static struct hw *
split_fill_path (struct hw *current,
const char *device_specifier,
name_specifier *spec)
{
/* break it up */
if (!split_device_specifier (current, device_specifier, spec))
hw_abort (current, "error parsing %s\n", device_specifier);
/* fill our tree with its contents */
current = split_find_device (current, spec);
/* add any additional devices as needed */
if (spec->name != NULL)
{
do
{
if (current != NULL && !hw_finished_p (current))
hw_finish (current);
current = hw_create (NULL,
current,
spec->family,
spec->name,
spec->unit,
spec->args);
}
while (split_device_name (spec));
}
return current;
}
tree_find_string_property(device *root,
const char *path_to_property)
{
name_specifier spec;
if (!split_property_specifier(root, path_to_property, &spec))
device_error(root, "Invalid property path %s", path_to_property);
root = split_find_device(root, &spec);
return device_find_string_property(root, spec.property);
}
const struct hw_property *
hw_tree_find_property (struct hw *root,
const char *path_to_property)
{
name_specifier spec;
if (!split_property_specifier (root, path_to_property, &spec))
hw_abort (root, "Invalid property path %s", path_to_property);
root = split_find_device (root, &spec);
if (spec.name != NULL)
return NULL; /* not a leaf */
return hw_find_property (root, spec.property);
}
const char *
hw_tree_find_string_property (struct hw *root,
const char *path_to_property)
{
name_specifier spec;
if (!split_property_specifier (root, path_to_property, &spec))
hw_abort (root, "Invalid property path %s", path_to_property);
root = split_find_device (root, &spec);
if (spec.name != NULL)
hw_abort (root, "device \"%s\" not found (property \"%s\")",
spec.name, path_to_property);
return hw_find_string_property (root, spec.property);
}
tree_instance(device *root,
const char *device_specifier)
{
/* find the device node */
device *me;
name_specifier spec;
if (!split_device_specifier(root, device_specifier, &spec))
return NULL;
me = split_find_device(root, &spec);
if (spec.name != NULL)
return NULL;
/* create the instance */
return device_create_instance(me, device_specifier, spec.last_args);
}
tree_find_device(device *root,
const char *path_to_device)
{
device *node;
name_specifier spec;
/* parse the path */
split_device_specifier(root, path_to_device, &spec);
if (spec.value != NULL)
return NULL; /* something wierd */
/* now find it */
node = split_find_device(root, &spec);
if (spec.name != NULL)
return NULL; /* not a leaf */
return node;
}
split_fill_path(device *current,
const char *device_specifier,
name_specifier *spec)
{
/* break it up */
if (!split_device_specifier(current, device_specifier, spec))
device_error(current, "error parsing %s\n", device_specifier);
/* fill our tree with its contents */
current = split_find_device(current, spec);
/* add any additional devices as needed */
if (spec->name != NULL) {
do {
current = device_create(current, spec->base, spec->name,
spec->unit, spec->args);
} while (split_device_name(spec));
}
return current;
}
