ipc_rpmsg.h

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/*
 * Copyright (c) 2021 Carlo Caione <ccaione@baylibre.com>
 *
 * SPDX-License-Identifier: Apache-2.0
 */
 
#ifndef ZEPHYR_INCLUDE_IPC_SERVICE_IPC_RPMSG_H_
#define ZEPHYR_INCLUDE_IPC_SERVICE_IPC_RPMSG_H_
 
#include <zephyr/ipc/ipc_service.h>
#include <openamp/open_amp.h>
#include <metal/device.h>
 
#ifdef __cplusplus
extern "C" {
#endif
 
#define NUM_ENDPOINTS   CONFIG_IPC_SERVICE_BACKEND_RPMSG_NUM_ENDPOINTS_PER_INSTANCE
 
struct ipc_rpmsg_ept;
 
typedef void (*rpmsg_ept_bound_cb)(struct ipc_rpmsg_ept *ept);
 
struct ipc_rpmsg_ept {
        struct rpmsg_endpoint ep;
 
        char name[RPMSG_NAME_SIZE];
 
        uint32_t dest;
 
        volatile bool bound;
 
        const struct ipc_service_cb *cb;
 
        void *priv;
};
 
struct ipc_rpmsg_instance {
        struct ipc_rpmsg_ept endpoint[NUM_ENDPOINTS];
 
        struct rpmsg_virtio_device rvdev;
 
        struct rpmsg_virtio_shm_pool shm_pool;
 
        rpmsg_ept_bound_cb bound_cb;
 
        rpmsg_ept_cb cb;
 
        struct k_mutex mtx;
};
 
int ipc_rpmsg_init(struct ipc_rpmsg_instance *instance,
                   unsigned int role,
                   unsigned int buffer_size,
                   struct metal_io_region *shm_io,
                   struct virtio_device *vdev,
                   void *shb, size_t size,
                   rpmsg_ns_bind_cb ns_bind_cb);
 
 
int ipc_rpmsg_deinit(struct ipc_rpmsg_instance *instance,
                   unsigned int role);
 
int ipc_rpmsg_register_ept(struct ipc_rpmsg_instance *instance, unsigned int role,
                           struct ipc_rpmsg_ept *ept);
 
#ifdef __cplusplus
}
#endif
 
#endif /* ZEPHYR_INCLUDE_IPC_SERVICE_IPC_RPMSG_H_ */