mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-23 17:30:02 +00:00
![Pi-Hsun Shih](/assets/img/avatar_default.png)
Add a simple rpmsg support for mt8183 SCP, that use IPI / IPC directly. Signed-off-by: Pi-Hsun Shih <pihsun@chromium.org> Link: https://lore.kernel.org/r/20191112110330.179649-4-pihsun@chromium.org Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
38 lines
1.2 KiB
C
38 lines
1.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/*
|
|
* Copyright 2019 Google LLC.
|
|
*/
|
|
|
|
#ifndef __LINUX_RPMSG_MTK_RPMSG_H
|
|
#define __LINUX_RPMSG_MTK_RPMSG_H
|
|
|
|
#include <linux/platform_device.h>
|
|
#include <linux/remoteproc.h>
|
|
|
|
typedef void (*ipi_handler_t)(void *data, unsigned int len, void *priv);
|
|
|
|
/*
|
|
* struct mtk_rpmsg_info - IPI functions tied to the rpmsg device.
|
|
* @register_ipi: register IPI handler for an IPI id.
|
|
* @unregister_ipi: unregister IPI handler for a registered IPI id.
|
|
* @send_ipi: send IPI to an IPI id. wait is the timeout (in msecs) to wait
|
|
* until response, or 0 if there's no timeout.
|
|
* @ns_ipi_id: the IPI id used for name service, or -1 if name service isn't
|
|
* supported.
|
|
*/
|
|
struct mtk_rpmsg_info {
|
|
int (*register_ipi)(struct platform_device *pdev, u32 id,
|
|
ipi_handler_t handler, void *priv);
|
|
void (*unregister_ipi)(struct platform_device *pdev, u32 id);
|
|
int (*send_ipi)(struct platform_device *pdev, u32 id,
|
|
void *buf, unsigned int len, unsigned int wait);
|
|
int ns_ipi_id;
|
|
};
|
|
|
|
struct rproc_subdev *
|
|
mtk_rpmsg_create_rproc_subdev(struct platform_device *pdev,
|
|
struct mtk_rpmsg_info *info);
|
|
|
|
void mtk_rpmsg_destroy_rproc_subdev(struct rproc_subdev *subdev);
|
|
|
|
#endif
|