#include <socks/status.h>
#include <socks/object.h>
#include <socks/device.h>

#define DEVICE_CAST(p) OBJECT_C_CAST(struct device, dev_base, &device_type, p)

static struct device *root_device = NULL;
static struct object_type device_type = {
	.ob_name = "device",
	.ob_size = sizeof(struct device),
	.ob_ops = {
		.destroy = NULL,
	}
};

kern_status_t device_init(void)
{
	object_type_register(&device_type);
	return KERN_OK;
}

kern_status_t set_root_device(struct device *dev)
{
	if (root_device) {
	    object_deref(&root_device->dev_base);
	}

	object_ref(&dev->dev_base);
	root_device = dev;

	return KERN_OK;
}

struct device *device_alloc(void)
{
	struct object *dev_object = object_create(&device_type);
	if (!dev_object) {
		return NULL;
	}

	return DEVICE_CAST(dev_object);
}