sdw_type.h

 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
 7extern const struct bus_type sdw_bus_type;
 8extern const struct device_type sdw_slave_type;
 9extern const struct device_type sdw_master_type;
10
11static 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_const(_drv, struct sdw_driver, driver)
17
18#define sdw_register_driver(drv) \
19	__sdw_register_driver(drv, THIS_MODULE)
20
21int __sdw_register_driver(struct sdw_driver *drv, struct module *owner);
22void sdw_unregister_driver(struct sdw_driver *drv);
23
24int sdw_slave_uevent(const 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 */