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