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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879/* SPDX-License-Identifier: BSD-3-Clause *//* * Copyright (C) 2021-2023 OpenSynergy GmbH * Copyright Red Hat, Inc. 2025 */#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 0#define VIRTIO_CAN_F_CAN_FD 1#define VIRTIO_CAN_F_RTR_FRAMES 2#define VIRTIO_CAN_F_LATE_TX_ACK 3
/* CAN Result Types */#define VIRTIO_CAN_RESULT_OK 0#define VIRTIO_CAN_RESULT_NOT_OK 1
/* CAN flags to determine type of CAN Id */#define VIRTIO_CAN_FLAGS_EXTENDED 0x8000#define VIRTIO_CAN_FLAGS_FD 0x4000#define VIRTIO_CAN_FLAGS_RTR 0x2000
#define VIRTIO_CAN_MAX_DLEN 64 /* this is like CANFD_MAX_DLEN */
struct virtio_can_config {#define VIRTIO_CAN_S_CTRL_BUSOFF (1u << 0) /* Controller BusOff */ /* CAN controller status */ __le16 status;};
/* TX queue message types */struct virtio_can_tx_out {#define VIRTIO_CAN_TX 0x0001 __le16 msg_type; __le16 length; /* 0..8 CC, 0..64 CAN-FD, 0..2048 CAN-XL, 12 bits */ __u8 reserved_classic_dlc; /* If CAN classic length = 8 then DLC can be 8..15 */ __u8 padding; __le16 reserved_xl_priority; /* May be needed for CAN XL priority */ __le32 flags; __le32 can_id; __u8 sdu[] __counted_by_le(length);};
struct virtio_can_tx_in { __u8 result;};
/* RX queue message types */struct virtio_can_rx {#define VIRTIO_CAN_RX 0x0101 __le16 msg_type; __le16 length; /* 0..8 CC, 0..64 CAN-FD, 0..2048 CAN-XL, 12 bits */ __u8 reserved_classic_dlc; /* If CAN classic length = 8 then DLC can be 8..15 */ __u8 padding; __le16 reserved_xl_priority; /* May be needed for CAN XL priority */ __le32 flags; __le32 can_id; __u8 sdu[] __counted_by_le(length);};
/* Control queue message types */struct virtio_can_control_out {#define VIRTIO_CAN_SET_CTRL_MODE_START 0x0201#define VIRTIO_CAN_SET_CTRL_MODE_STOP 0x0202 __le16 msg_type;};
struct virtio_can_control_in { __u8 result;};
#endif /* #ifndef _LINUX_VIRTIO_VIRTIO_CAN_H */