linux/drivers/rpmsg/rpmsg_char.h
Arnaud Pouliquen 69265bc12b rpmsg: char: Export eptdev create and destroy functions
To prepare the split of the code related to the control (ctrldev)
and the endpoint (eptdev) devices in 2 separate files:

- Rename and export the functions in rpmsg_char.h.

- Suppress the dependency with the rpmsg_ctrldev struct in the
  rpmsg_eptdev_create function.

Suggested-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@foss.st.com>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220124102524.295783-2-arnaud.pouliquen@foss.st.com
2022-03-13 11:49:53 -05:00

47 lines
1.3 KiB
C

/* 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__ */