ipc_static_vrings.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_STATIC_VRINGS_H_
#define ZEPHYR_INCLUDE_IPC_SERVICE_IPC_STATIC_VRINGS_H_
 
#include <zephyr/ipc/ipc_service.h>
#include <openamp/open_amp.h>
#include <metal/device.h>
 
#ifdef __cplusplus
extern "C" {
#endif
 
#define VRING_COUNT     (2)
 
#define MEM_ALIGNMENT   CONFIG_IPC_SERVICE_STATIC_VRINGS_MEM_ALIGNMENT
 
typedef void (*ipc_notify_cb)(struct virtqueue *vq, void *priv);
 
struct ipc_static_vrings {
        struct virtio_device vdev;
 
        metal_phys_addr_t shm_physmap[1];
 
        struct metal_device shm_device;
 
        uintptr_t status_reg_addr;
 
        uintptr_t tx_addr;
 
        uintptr_t rx_addr;
 
        size_t vring_size;
 
        uintptr_t shm_addr;
 
        size_t shm_size;
 
        struct metal_io_region *shm_io;
 
        struct virtio_vring_info rvrings[VRING_COUNT];
 
        struct virtqueue *vq[VRING_COUNT];
 
        void *priv;
 
        ipc_notify_cb notify_cb;
};
 
int ipc_static_vrings_init(struct ipc_static_vrings *vr, unsigned int role);
 
int ipc_static_vrings_deinit(struct ipc_static_vrings *vr, unsigned int role);
 
#ifdef __cplusplus
}
#endif
 
#endif /* ZEPHYR_INCLUDE_IPC_SERVICE_IPC_STATIC_VRINGS_H_ */