1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */ 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * Copyright 2019 Google LLC. 4*4882a593Smuzhiyun */ 5*4882a593Smuzhiyun 6*4882a593Smuzhiyun #ifndef __LINUX_RPMSG_MTK_RPMSG_H 7*4882a593Smuzhiyun #define __LINUX_RPMSG_MTK_RPMSG_H 8*4882a593Smuzhiyun 9*4882a593Smuzhiyun #include <linux/platform_device.h> 10*4882a593Smuzhiyun #include <linux/remoteproc.h> 11*4882a593Smuzhiyun 12*4882a593Smuzhiyun typedef void (*ipi_handler_t)(void *data, unsigned int len, void *priv); 13*4882a593Smuzhiyun 14*4882a593Smuzhiyun /* 15*4882a593Smuzhiyun * struct mtk_rpmsg_info - IPI functions tied to the rpmsg device. 16*4882a593Smuzhiyun * @register_ipi: register IPI handler for an IPI id. 17*4882a593Smuzhiyun * @unregister_ipi: unregister IPI handler for a registered IPI id. 18*4882a593Smuzhiyun * @send_ipi: send IPI to an IPI id. wait is the timeout (in msecs) to wait 19*4882a593Smuzhiyun * until response, or 0 if there's no timeout. 20*4882a593Smuzhiyun * @ns_ipi_id: the IPI id used for name service, or -1 if name service isn't 21*4882a593Smuzhiyun * supported. 22*4882a593Smuzhiyun */ 23*4882a593Smuzhiyun struct mtk_rpmsg_info { 24*4882a593Smuzhiyun int (*register_ipi)(struct platform_device *pdev, u32 id, 25*4882a593Smuzhiyun ipi_handler_t handler, void *priv); 26*4882a593Smuzhiyun void (*unregister_ipi)(struct platform_device *pdev, u32 id); 27*4882a593Smuzhiyun int (*send_ipi)(struct platform_device *pdev, u32 id, 28*4882a593Smuzhiyun void *buf, unsigned int len, unsigned int wait); 29*4882a593Smuzhiyun int ns_ipi_id; 30*4882a593Smuzhiyun }; 31*4882a593Smuzhiyun 32*4882a593Smuzhiyun struct rproc_subdev * 33*4882a593Smuzhiyun mtk_rpmsg_create_rproc_subdev(struct platform_device *pdev, 34*4882a593Smuzhiyun struct mtk_rpmsg_info *info); 35*4882a593Smuzhiyun 36*4882a593Smuzhiyun void mtk_rpmsg_destroy_rproc_subdev(struct rproc_subdev *subdev); 37*4882a593Smuzhiyun 38*4882a593Smuzhiyun #endif 39