diff options
Diffstat (limited to 'meta-egvirt/recipes-kernel/kernel-module-virtio-can/files/virtio_can.h')
-rw-r--r-- | meta-egvirt/recipes-kernel/kernel-module-virtio-can/files/virtio_can.h | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/meta-egvirt/recipes-kernel/kernel-module-virtio-can/files/virtio_can.h b/meta-egvirt/recipes-kernel/kernel-module-virtio-can/files/virtio_can.h new file mode 100644 index 00000000..0ca75c7a --- /dev/null +++ b/meta-egvirt/recipes-kernel/kernel-module-virtio-can/files/virtio_can.h @@ -0,0 +1,69 @@ +/* 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 */ |