67 lines
2.0 KiB
C
67 lines
2.0 KiB
C
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/*
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* linux/can/bcm.h
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*
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* Definitions for CAN Broadcast Manager (BCM)
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*
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* Author: Oliver Hartkopp <oliver.hartkopp@volkswagen.de>
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* Copyright (c) 2002-2007 Volkswagen Group Electronic Research
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* All rights reserved.
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*
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*/
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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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/**
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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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*/
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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 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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#endif /* CAN_BCM_H */
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