static void gb_connection_release(struct device *dev)
{
struct gb_connection *connection = to_gb_connection(dev);
destroy_workqueue(connection->wq);
kfree(connection);
}
static ssize_t
protocol_id_show(struct device *dev, struct device_attribute *attr, char *buf)
{
struct gb_connection *connection = to_gb_connection(dev);
if (connection->protocol)
return sprintf(buf, "%d\n", connection->protocol->id);
else
return -EINVAL;
}
static ssize_t state_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct gb_connection *connection = to_gb_connection(dev);
enum gb_connection_state state;
spin_lock_irq(&connection->lock);
state = connection->state;
spin_unlock_irq(&connection->lock);
return sprintf(buf, "%d\n", state);
}
static int greybus_uevent(struct device *dev, struct kobj_uevent_env *env)
{
struct gb_module *module = NULL;
struct gb_interface *intf = NULL;
struct gb_bundle *bundle = NULL;
struct gb_connection *connection = NULL;
if (is_gb_endo(dev)) {
/*
* Not much to do for an endo, just fall through, as the
* "default" attributes are good enough for us.
*/
return 0;
}
if (is_gb_module(dev)) {
module = to_gb_module(dev);
} else if (is_gb_interface(dev)) {
intf = to_gb_interface(dev);
} else if (is_gb_bundle(dev)) {
bundle = to_gb_bundle(dev);
intf = bundle->intf;
} else if (is_gb_connection(dev)) {
connection = to_gb_connection(dev);
bundle = connection->bundle;
intf = bundle->intf;
} else {
dev_WARN(dev, "uevent for unknown greybus device \"type\"!\n");
return -EINVAL;
}
if (connection) {
// FIXME
// add a uevent that can "load" a connection type
return 0;
}
if (bundle) {
// FIXME
// add a uevent that can "load" a bundle type
// This is what we need to bind a driver to so use the info
// in gmod here as well
return 0;
}
// FIXME
// "just" a module, be vague here, nothing binds to a module except
// the greybus core, so there's not much, if anything, we need to
// advertise.
return 0;
}
static ssize_t
ap_cport_id_show(struct device *dev, struct device_attribute *attr, char *buf)
{
struct gb_connection *connection = to_gb_connection(dev);
return sprintf(buf, "%hu\n", connection->hd_cport_id);
}
