aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/rpmsg/rpmsg_char.h
blob: 117d9cbc52f0dfccf78fc0e714e9fffae2c632cc (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Copyright (C) 2022, STMicroelectronics
 */

#ifndef __RPMSG_CHRDEV_H__
#define __RPMSG_CHRDEV_H__

#if IS_ENABLED(CONFIG_RPMSG_CHAR)
/**
 * rpmsg_chrdev_eptdev_create() - register char device based on an endpoint
 * @rpdev:  prepared rpdev to be used for creating endpoints
 * @parent: parent device
 * @chinfo: associated endpoint channel information.
 *
 * This function create a new rpmsg char endpoint device to instantiate a new
 * endpoint based on chinfo information.
 */
int rpmsg_chrdev_eptdev_create(struct rpmsg_device *rpdev, struct device *parent,
			       struct rpmsg_channel_info chinfo);

/**
 * rpmsg_chrdev_eptdev_destroy() - destroy created char device endpoint.
 * @data: private data associated to the endpoint device
 *
 * This function destroys a rpmsg char endpoint device created by the RPMSG_DESTROY_EPT_IOCTL
 * control.
 */
int rpmsg_chrdev_eptdev_destroy(struct device *dev, void *data);

#else  /*IS_ENABLED(CONFIG_RPMSG_CHAR) */

static inline int rpmsg_chrdev_eptdev_create(struct rpmsg_device *rpdev, struct device *parent,
					     struct rpmsg_channel_info chinfo)
{
	return -ENXIO;
}

static inline int rpmsg_chrdev_eptdev_destroy(struct device *dev, void *data)
{
	return -ENXIO;
}

#endif /*IS_ENABLED(CONFIG_RPMSG_CHAR) */

#endif /*__RPMSG_CHRDEV_H__ */