| /* |
| * Copyright (c) 2021, Nordic Semiconductor ASA |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| #ifndef ZEPHYR_SUBSYS_IPC_RPMSG_BACKEND_H |
| #define ZEPHYR_SUBSYS_IPC_RPMSG_BACKEND_H |
| |
| #include <openamp/rpmsg_virtio.h> |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| #define VDEV_START_ADDR DT_REG_ADDR(DT_CHOSEN(zephyr_ipc_shm)) |
| #define VDEV_SIZE DT_REG_SIZE(DT_CHOSEN(zephyr_ipc_shm)) |
| |
| #define VDEV_STATUS_ADDR VDEV_START_ADDR |
| #define VDEV_STATUS_SIZE 0x400 |
| |
| #define SHM_START_ADDR (VDEV_START_ADDR + VDEV_STATUS_SIZE) |
| #define SHM_SIZE (VDEV_SIZE - VDEV_STATUS_SIZE) |
| #define SHM_DEVICE_NAME "sramx.shm" |
| |
| /* |
| * @brief Initialize RPMsg backend |
| * |
| * @param io Shared memory IO region. This is an output parameter providing |
| * a pointer to an actual shared memory IO region structure. |
| * Caller of this function shall pass an address at which the |
| * pointer to the shared memory IO region structure is stored. |
| * @param vdev Pointer to the virtio device initialized by this function. |
| * |
| * @retval 0 Initialization successful |
| * @retval <0 Initialization error reported by OpenAMP |
| */ |
| int rpmsg_backend_init(struct metal_io_region **io, struct virtio_device *vdev); |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* ZEPHYR_SUBSYS_IPC_RPMSG_BACKEND_H */ |
