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/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */

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* linux/can/bcm.h

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* Definitions for CAN Broadcast Manager (BCM)

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* Author: Oliver Hartkopp <oliver.hartkopp@volkswagen.de>

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* Redistribution and use in source and binary forms, with or without

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* modification, are permitted provided that the following conditions

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* are met:

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* 1. Redistributions of source code must retain the above copyright

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* notice, this list of conditions and the following disclaimer.

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* 2. Redistributions in binary form must reproduce the above copyright

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* notice, this list of conditions and the following disclaimer in the

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* documentation and/or other materials provided with the distribution.

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* 3. Neither the name of Volkswagen nor the names of its contributors

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* may be used to endorse or promote products derived from this software

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* without specific prior written permission.

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* Alternatively, provided that this notice is retained in full, this

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* software may be distributed under the terms of the GNU General

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* Public License ("GPL") version 2, in which case the provisions of the

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* GPL apply INSTEAD OF those given above.

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* The provided data structures and external interfaces from this code

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* are not restricted to be used by modules with a GPL compatible license.

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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT

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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR

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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT

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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT

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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,

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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY

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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH

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* DAMAGE.

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#ifndef _CAN_BCM_H

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#define _CAN_BCM_H

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#include <linux/types.h>

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#include <linux/can.h>

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struct bcm_timeval {

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long tv_sec;

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long tv_usec;

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};

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/**

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* struct bcm_msg_head - head of messages to/from the broadcast manager

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* @opcode: opcode, see enum below.

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* @flags: special flags, see below.

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* @count: number of frames to send before changing interval.

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* @ival1: interval for the first @count frames.

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* @ival2: interval for the following frames.

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* @can_id: CAN ID of frames to be sent or received.

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* @nframes: number of frames appended to the message head.

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* @frames: array of CAN frames.

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struct bcm_msg_head {

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__u32 opcode;

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__u32 flags;

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__u32 count;

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struct bcm_timeval ival1, ival2;

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canid_t can_id;

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__u32 nframes;

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struct can_frame frames[0];

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};

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enum {

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TX_SETUP = 1, /* create (cyclic) transmission task */

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TX_DELETE, /* remove (cyclic) transmission task */

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TX_READ, /* read properties of (cyclic) transmission task */

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TX_SEND, /* send one CAN frame */

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RX_SETUP, /* create RX content filter subscription */

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RX_DELETE, /* remove RX content filter subscription */

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RX_READ, /* read properties of RX content filter subscription */

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TX_STATUS, /* reply to TX_READ request */

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TX_EXPIRED, /* notification on performed transmissions (count=0) */

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RX_STATUS, /* reply to RX_READ request */

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RX_TIMEOUT, /* cyclic message is absent */

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RX_CHANGED /* updated CAN frame (detected content change) */

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};

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#define SETTIMER 0x0001

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#define STARTTIMER 0x0002

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#define TX_COUNTEVT 0x0004

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#define TX_ANNOUNCE 0x0008

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#define TX_CP_CAN_ID 0x0010

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#define RX_FILTER_ID 0x0020

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#define RX_CHECK_DLC 0x0040

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#define RX_NO_AUTOTIMER 0x0080

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#define RX_ANNOUNCE_RESUME 0x0100

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#define TX_RESET_MULTI_IDX 0x0200

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#define RX_RTR_FRAME 0x0400

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#define CAN_FD_FRAME 0x0800

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#endif /* !_UAPI_CAN_BCM_H */

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