89 lines
2.6 KiB
C
89 lines
2.6 KiB
C
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/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (c) 2019 MediaTek Inc.
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*/
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#ifndef __LINUX_RPMSG_MTK_RPMSG_H
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#define __LINUX_RPMSG_MTK_RPMSG_H
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#include <linux/platform_device.h>
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#include <linux/remoteproc.h>
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typedef void (*ipi_handler_t)(void *data, unsigned int len, void *priv);
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/*
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* struct mtk_rpmsg_info - IPI functions tied to the rpmsg device.
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* @register_ipi: register IPI handler for an IPI id.
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* @unregister_ipi: unregister IPI handler for a registered IPI id.
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* @send_ipi: send IPI to an IPI id. wait is the timeout (in msecs) to wait
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* until response, or 0 if there's no timeout.
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* @ns_ipi_id: the IPI id used for name service, or -1 if name service isn't
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* supported.
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*/
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struct mtk_rpmsg_info {
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int (*register_ipi)(struct platform_device *pdev, u32 id,
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ipi_handler_t handler, void *priv);
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void (*unregister_ipi)(struct platform_device *pdev, u32 id);
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int (*send_ipi)(struct platform_device *pdev, u32 id,
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void *buf, unsigned int len, unsigned int wait);
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int ns_ipi_id;
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};
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struct rproc_subdev *
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mtk_rpmsg_create_rproc_subdev(struct platform_device *pdev,
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struct mtk_rpmsg_info *info);
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void mtk_rpmsg_destroy_rproc_subdev(struct rproc_subdev *subdev);
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struct mtk_rpmsg_channel_info {
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struct rpmsg_channel_info info;
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//bool registered;
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//struct list_head list;
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unsigned int send_slot; //send slot offset
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unsigned int recv_slot; //recv slot offset
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unsigned int send_slot_size; // send slot count
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unsigned int recv_slot_size; // recv slot count
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unsigned int send_pin_index; // pin irq index
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unsigned int recv_pin_index; // pin irq index
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unsigned int send_pin_offset;// pin array offset
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unsigned int recv_pin_offset;// pin array offset
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unsigned int mbox; //mbox
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spinlock_t channel_lock;
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};
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struct mtk_rpmsg_endpoint {
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struct rpmsg_endpoint ept;
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//struct mtk_rpmsg_rproc_subdev *mtk_subdev;
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struct mtk_rpmsg_device *mdev;
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struct mtk_rpmsg_channel_info *mchan;
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};
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struct mtk_rpmsg_operations {
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int (*mbox_send)(struct mtk_rpmsg_endpoint *mept,
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struct mtk_rpmsg_channel_info *mchan,
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void *buf, unsigned int len, unsigned int wait);
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};
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struct mtk_rpmsg_device {
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struct rpmsg_device rpdev;
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//struct mtk_rpmsg_rproc_subdev *mtk_subdev;
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struct platform_device *pdev;
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struct mtk_rpmsg_operations *ops;
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struct mtk_mbox_device *mbdev;
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};
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/*
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* create mtk rpmsg device
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*/
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struct mtk_rpmsg_device *mtk_rpmsg_create_device(struct platform_device *pdev,
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struct mtk_mbox_device *mbdev, unsigned int ipc_chan_id);
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/*
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* create mtk rpmsg channel
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*/
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struct mtk_rpmsg_channel_info *
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mtk_rpmsg_create_channel(struct mtk_rpmsg_device *mdev, u32 chan_id,
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char *name);
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#endif
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