1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* Copyright(c) 2015-17 Intel Corporation. */
3 
4 #ifndef __SOUNDWIRE_TYPES_H
5 #define __SOUNDWIRE_TYPES_H
6 
7 extern struct bus_type sdw_bus_type;
8 extern struct device_type sdw_slave_type;
9 extern struct device_type sdw_master_type;
10 
is_sdw_slave(const struct device * dev)11 static inline int is_sdw_slave(const struct device *dev)
12 {
13 	return dev->type == &sdw_slave_type;
14 }
15 
16 #define drv_to_sdw_driver(_drv) container_of(_drv, struct sdw_driver, driver)
17 
18 #define sdw_register_driver(drv) \
19 	__sdw_register_driver(drv, THIS_MODULE)
20 
21 int __sdw_register_driver(struct sdw_driver *drv, struct module *owner);
22 void sdw_unregister_driver(struct sdw_driver *drv);
23 
24 int sdw_slave_uevent(struct device *dev, struct kobj_uevent_env *env);
25 
26 /**
27  * module_sdw_driver() - Helper macro for registering a Soundwire driver
28  * @__sdw_driver: soundwire slave driver struct
29  *
30  * Helper macro for Soundwire drivers which do not do anything special in
31  * module init/exit. This eliminates a lot of boilerplate. Each module may only
32  * use this macro once, and calling it replaces module_init() and module_exit()
33  */
34 #define module_sdw_driver(__sdw_driver) \
35 	module_driver(__sdw_driver, sdw_register_driver, \
36 			sdw_unregister_driver)
37 #endif /* __SOUNDWIRE_TYPES_H */
38