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