Signed-off-by: Matias Ezequiel Vara Larsen <[email protected]>
---
Note that virtio_can.h is not merged yet and it is part of the series
https://lore.kernel.org/all/aQJRnX7OpFRY%2F1+H@fedora/
---
include/standard-headers/linux/virtio_can.h | 78 +++++++++++++++++++++
1 file changed, 78 insertions(+)
create mode 100644 include/standard-headers/linux/virtio_can.h
diff --git a/include/standard-headers/linux/virtio_can.h
b/include/standard-headers/linux/virtio_can.h
new file mode 100644
index 0000000000..6380ef7bce
--- /dev/null
+++ b/include/standard-headers/linux/virtio_can.h
@@ -0,0 +1,78 @@
+/* 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 <standard-headers/linux/types.h>
+#include <standard-headers/linux/virtio_types.h>
+#include <standard-headers/linux/virtio_ids.h>
+#include <standard-headers/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(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(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 */
--
2.42.0
