linux/drivers/media/platform/amphion/vpu_mbox.h
Ming Qian 61cbf1c1fa media: amphion: implement vpu core communication based on mailbox
driver use mailbox to communicate with vpu core.
and there are a command buffer and a message buffer.
driver will write commands to the command buffer,
then trigger a vpu core interrupt
vpu core will write messages to the message buffer,
then trigger a cpu interrupt.

Signed-off-by: Ming Qian <ming.qian@nxp.com>
Signed-off-by: Shijie Qin <shijie.qin@nxp.com>
Signed-off-by: Zhou Peng <eagle.zhou@nxp.com>
Reported-by: kernel test robot <lkp@intel.com>
Tested-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2022-03-07 17:13:33 +01:00

17 lines
440 B
C

/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright 2020-2021 NXP
*/
#ifndef _AMPHION_VPU_MBOX_H
#define _AMPHION_VPU_MBOX_H
int vpu_mbox_init(struct vpu_core *core);
int vpu_mbox_request(struct vpu_core *core);
void vpu_mbox_free(struct vpu_core *core);
void vpu_mbox_send_msg(struct vpu_core *core, u32 type, u32 data);
void vpu_mbox_send_type(struct vpu_core *core, u32 type);
void vpu_mbox_enable_rx(struct vpu_dev *dev);
#endif