1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * Copyright (c) 2023 Ideas On Board Oy
4 */
5
6#ifndef _VCHIQ_DEVICE_H
7#define _VCHIQ_DEVICE_H
8
9#include <linux/device.h>
10#include <linux/mod_devicetable.h>
11
12struct vchiq_drv_mgmt;
13
14struct vchiq_device {
15 struct device dev;
16 struct vchiq_drv_mgmt *drv_mgmt;
17};
18
19struct vchiq_driver {
20 int (*probe)(struct vchiq_device *device);
21 void (*remove)(struct vchiq_device *device);
22 int (*resume)(struct vchiq_device *device);
23 int (*suspend)(struct vchiq_device *device,
24 pm_message_t state);
25
26 const struct vchiq_device_id *id_table;
27 struct device_driver driver;
28};
29
30static inline struct vchiq_device *to_vchiq_device(struct device *d)
31{
32 return container_of(d, struct vchiq_device, dev);
33}
34
35static inline struct vchiq_driver *to_vchiq_driver(struct device_driver *d)
36{
37 return container_of(d, struct vchiq_driver, driver);
38}
39
40extern const struct bus_type vchiq_bus_type;
41
42struct vchiq_device *
43vchiq_device_register(struct device *parent, const char *name);
44void vchiq_device_unregister(struct vchiq_device *dev);
45
46int vchiq_driver_register(struct vchiq_driver *vchiq_drv);
47void vchiq_driver_unregister(struct vchiq_driver *vchiq_drv);
48
49/**
50 * module_vchiq_driver() - Helper macro for registering a vchiq driver
51 * @__vchiq_driver: vchiq driver struct
52 *
53 * Helper macro for vchiq drivers which do not do anything special in
54 * module init/exit. This eliminates a lot of boilerplate. Each module may only
55 * use this macro once, and calling it replaces module_init() and module_exit()
56 */
57#define module_vchiq_driver(__vchiq_driver) \
58 module_driver(__vchiq_driver, vchiq_driver_register, vchiq_driver_unregister)
59
60#endif /* _VCHIQ_DEVICE_H */
61

source code of linux/include/linux/raspberrypi/vchiq_bus.h