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bcm.h
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/* SPDX-License-Identifier: ((GPL-2.0 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 _CAN_BCM_H #define _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[0]; }; 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) */ }; #define SETTIMER 0x0001 #define STARTTIMER 0x0002 #define TX_COUNTEVT 0x0004 #define TX_ANNOUNCE 0x0008 #define TX_CP_CAN_ID 0x0010 #define RX_FILTER_ID 0x0020 #define RX_CHECK_DLC 0x0040 #define RX_NO_AUTOTIMER 0x0080 #define RX_ANNOUNCE_RESUME 0x0100 #define TX_RESET_MULTI_IDX 0x0200 #define RX_RTR_FRAME 0x0400 #define CAN_FD_FRAME 0x0800 #endif /* !_UAPI_CAN_BCM_H */