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;
}
static int
split_property_specifier (struct hw *current,
const char *property_specifier,
name_specifier *spec)
{
if (split_device_specifier (current, property_specifier, spec))
{
if (spec->property == NULL)
{
/* force the last name to be a property name */
char *chp = strrchr (spec->path, '/');
if (chp == NULL)
{
spec->property = spec->path;
spec->path = strrchr (spec->property, '\0');;
}
else
{
*chp = '\0';
spec->property = chp + 1;
}
}
return 1;
}
else
return 0;
}
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;
}
