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/* SPDX-License-Identifier: BSD-3-Clause */
/*
* Copyright (C) 2021 OpenSynergy GmbH
*/
#ifndef _LINUX_VIRTIO_VIRTIO_CAN_H
#define _LINUX_VIRTIO_VIRTIO_CAN_H
#include <linux/types.h>
#include <linux/virtio_types.h>
#include <linux/virtio_ids.h>
#include <linux/virtio_config.h>
/* Feature bit numbers */
#define VIRTIO_CAN_F_CAN_CLASSIC 0u
#define VIRTIO_CAN_F_CAN_FD 1u
#define VIRTIO_CAN_F_LATE_TX_ACK 2u
#define VIRTIO_CAN_F_RTR_FRAMES 3u
/* CAN Result Types */
#define VIRTIO_CAN_RESULT_OK 0u
#define VIRTIO_CAN_RESULT_NOT_OK 1u
/* CAN flags to determine type of CAN Id */
#define VIRTIO_CAN_FLAGS_EXTENDED 0x8000u
#define VIRTIO_CAN_FLAGS_FD 0x4000u
#define VIRTIO_CAN_FLAGS_RTR 0x2000u
/* TX queue message types */
struct virtio_can_tx_out {
#define VIRTIO_CAN_TX 0x0001u
__le16 msg_type;
__le16 reserved;
__le32 flags;
__le32 can_id;
__u8 sdu[64u];
};
struct virtio_can_tx_in {
__u8 result;
};
/* RX queue message types */
struct virtio_can_rx {
#define VIRTIO_CAN_RX 0x0101u
__le16 msg_type;
__le16 reserved;
__le32 flags;
__le32 can_id;
__u8 sdu[64u];
};
/* Control queue message types */
struct virtio_can_control_out {
#define VIRTIO_CAN_SET_CTRL_MODE_START 0x0201u
#define VIRTIO_CAN_SET_CTRL_MODE_STOP 0x0202u
__le16 msg_type;
};
struct virtio_can_control_in {
__u8 result;
};
/* Indication queue message types */
struct virtio_can_event_ind {
#define VIRTIO_CAN_BUSOFF_IND 0x0301u
__le16 msg_type;
};
#endif /* #ifndef _LINUX_VIRTIO_VIRTIO_CAN_H */
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