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64 lines
1.4 KiB
C
64 lines
1.4 KiB
C
/* 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 __MTK_RPMSG_INTERNAL_H__
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#define __MTK_RPMSG_INTERNAL_H__
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#include <linux/device.h>
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#include <linux/remoteproc.h>
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#include <linux/rpmsg.h>
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#include <linux/idr.h>
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#define MTK_CCD_MSGDEV_ADDR (0x3f0)
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struct ccd_worker_item;
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struct mtk_ccd_channel_info;
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enum ccd_mept_state {
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CCD_MENDPOINT_CREATED = 0,
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CCD_MENDPOINT_DESTROY
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};
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struct mtk_ccd_queue {
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struct list_head queue;
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spinlock_t queue_lock; /* Protect queue operation */
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};
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struct mtk_ccd_params {
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struct list_head list_entry;
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struct ccd_worker_item worker_obj;
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};
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struct mtk_ccd_rpmsg_endpoint {
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struct rpmsg_endpoint ept;
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struct mtk_ccd_channel_info mchinfo;
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struct mtk_rpmsg_rproc_subdev *mtk_subdev;
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wait_queue_head_t worker_readwq;
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wait_queue_head_t ccd_paramswq;
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atomic_t ccd_params_rdy; /* Should be 0 or 1 */
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struct mtk_ccd_queue pending_sendq;
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atomic_t worker_read_rdy; /* Should be 0 or 1 */
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atomic_t ccd_cmd_sent; /* Should be 0, 1, ..., N */
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atomic_t ccd_mep_state; /* enum ccd_mept_state */
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};
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struct mtk_ccd_mchinfo_entry {
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struct list_head list_entry;
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struct mtk_ccd_channel_info *mchinfo;
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};
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#define to_mtk_rpmsg_endpoint(r) \
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container_of(r, struct mtk_ccd_rpmsg_endpoint, ept)
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int ccd_msgdev_init(void);
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void __ept_release(struct kref *kref);
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int
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mtk_rpmsg_destroy_rpmsgdev(struct mtk_rpmsg_rproc_subdev *mtk_subdev,
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struct rpmsg_channel_info *info);
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#endif
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