/* SPDX-License-Identifier: ((GPL-2.0-only WITH Linux-syscall-note) OR BSD-3-Clause) */ /* * linux/can/bcm.h * * Definitions for CAN Broadcast Manager (BCM) * * Author: Oliver Hartkopp <oliver.hartkopp@volkswagen.de> * Copyright (c) 2002-2007 Volkswagen Group Electronic Research * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of Volkswagen nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * Alternatively, provided that this notice is retained in full, this * software may be distributed under the terms of the GNU General * Public License ("GPL") version 2, in which case the provisions of the * GPL apply INSTEAD OF those given above. * * The provided data structures and external interfaces from this code * are not restricted to be used by modules with a GPL compatible license. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH * DAMAGE.
*/
#ifndef _UAPI_CAN_BCM_H #define _UAPI_CAN_BCM_H
#include <linux/types.h> #include <linux/can.h>
struct bcm_timeval { long tv_sec; long tv_usec;
};
/** * struct bcm_msg_head - head of messages to/from the broadcast manager * @opcode: opcode, see enum below. * @flags: special flags, see below. * @count: number of frames to send before changing interval. * @ival1: interval for the first @count frames. * @ival2: interval for the following frames. * @can_id: CAN ID of frames to be sent or received. * @nframes: number of frames appended to the message head. * @frames: array of CAN frames.
*/ struct bcm_msg_head {
__u32 opcode;
__u32 flags;
__u32 count; struct bcm_timeval ival1, ival2;
canid_t can_id;
__u32 nframes; struct can_frame frames[];
};
enum {
TX_SETUP = 1, /* create (cyclic) transmission task */
TX_DELETE, /* remove (cyclic) transmission task */
TX_READ, /* read properties of (cyclic) transmission task */
TX_SEND, /* send one CAN frame */
RX_SETUP, /* create RX content filter subscription */
RX_DELETE, /* remove RX content filter subscription */
RX_READ, /* read properties of RX content filter subscription */
TX_STATUS, /* reply to TX_READ request */
TX_EXPIRED, /* notification on performed transmissions (count=0) */
RX_STATUS, /* reply to RX_READ request */
RX_TIMEOUT, /* cyclic message is absent */
RX_CHANGED /* updated CAN frame (detected content change) */
};
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