ivshmem.h

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/*
 * Copyright (c) 2020 Intel Corporation
 *
 * SPDX-License-Identifier: Apache-2.0
 */
 
#ifndef ZEPHYR_INCLUDE_DRIVERS_VIRTUALIZATION_IVSHMEM_H_
#define ZEPHYR_INCLUDE_DRIVERS_VIRTUALIZATION_IVSHMEM_H_
 
#include <zephyr/types.h>
#include <stddef.h>
#include <zephyr/device.h>
#include <zephyr/kernel.h>
 
#ifdef __cplusplus
extern "C" {
#endif
 
typedef size_t (*ivshmem_get_mem_f)(const struct device *dev,
                                    uintptr_t *memmap);
 
typedef uint32_t (*ivshmem_get_id_f)(const struct device *dev);
 
typedef uint16_t (*ivshmem_get_vectors_f)(const struct device *dev);
 
typedef int (*ivshmem_int_peer_f)(const struct device *dev,
                                  uint32_t peer_id, uint16_t vector);
 
typedef int (*ivshmem_register_handler_f)(const struct device *dev,
                                          struct k_poll_signal *signal,
                                          uint16_t vector);
 
__subsystem struct ivshmem_driver_api {
        ivshmem_get_mem_f get_mem;
        ivshmem_get_id_f get_id;
        ivshmem_get_vectors_f get_vectors;
        ivshmem_int_peer_f int_peer;
        ivshmem_register_handler_f register_handler;
};
 
__syscall size_t ivshmem_get_mem(const struct device *dev,
                                 uintptr_t *memmap);
 
static inline size_t z_impl_ivshmem_get_mem(const struct device *dev,
                                            uintptr_t *memmap)
{
        const struct ivshmem_driver_api *api =
                (const struct ivshmem_driver_api *)dev->api;
 
        return api->get_mem(dev, memmap);
}
 
__syscall uint32_t ivshmem_get_id(const struct device *dev);
 
static inline uint32_t z_impl_ivshmem_get_id(const struct device *dev)
{
        const struct ivshmem_driver_api *api =
                (const struct ivshmem_driver_api *)dev->api;
 
        return api->get_id(dev);
}
 
__syscall uint16_t ivshmem_get_vectors(const struct device *dev);
 
static inline uint16_t z_impl_ivshmem_get_vectors(const struct device *dev)
{
        const struct ivshmem_driver_api *api =
                (const struct ivshmem_driver_api *)dev->api;
 
        return api->get_vectors(dev);
}
 
__syscall int ivshmem_int_peer(const struct device *dev,
                               uint32_t peer_id, uint16_t vector);
 
static inline int z_impl_ivshmem_int_peer(const struct device *dev,
                                          uint32_t peer_id, uint16_t vector)
{
        const struct ivshmem_driver_api *api =
                (const struct ivshmem_driver_api *)dev->api;
 
        return api->int_peer(dev, peer_id, vector);
}
 
__syscall int ivshmem_register_handler(const struct device *dev,
                                       struct k_poll_signal *signal,
                                       uint16_t vector);
 
static inline int z_impl_ivshmem_register_handler(const struct device *dev,
                                                  struct k_poll_signal *signal,
                                                  uint16_t vector)
{
        const struct ivshmem_driver_api *api =
                (const struct ivshmem_driver_api *)dev->api;
 
        return api->register_handler(dev, signal, vector);
}
 
#ifdef __cplusplus
}
#endif
 
#include <syscalls/ivshmem.h>
 
#endif /* ZEPHYR_INCLUDE_DRIVERS_VIRTUALIZATION_IVSHMEM_H_ */