LXR linux/include/linux/can/bcm.h

   1/*
   2 * linux/can/bcm.h
   3 *
   4 * Definitions for CAN Broadcast Manager (BCM)
   5 *
   6 * Author: Oliver Hartkopp <oliver.hartkopp@volkswagen.de>
   7 * Copyright (c) 2002-2007 Volkswagen Group Electronic Research
   8 * All rights reserved.
   9 *
  10 * Send feedback to <socketcan-users@lists.berlios.de>
  11 *
  12 */
  13
  14#ifndef CAN_BCM_H
  15#define CAN_BCM_H
  16
  17#include <linux/types.h>
  18
  19/**
  20 * struct bcm_msg_head - head of messages to/from the broadcast manager
  21 * @opcode:    opcode, see enum below.
  22 * @flags:     special flags, see below.
  23 * @count:     number of frames to send before changing interval.
  24 * @ival1:     interval for the first @count frames.
  25 * @ival2:     interval for the following frames.
  26 * @can_id:    CAN ID of frames to be sent or received.
  27 * @nframes:   number of frames appended to the message head.
  28 * @frames:    array of CAN frames.
  29 */
  30struct bcm_msg_head {
  31        __u32 opcode;
  32        __u32 flags;
  33        __u32 count;
  34        struct timeval ival1, ival2;
  35        canid_t can_id;
  36        __u32 nframes;
  37        struct can_frame frames[0];
  38};
  39
  40enum {
  41        TX_SETUP = 1,   /* create (cyclic) transmission task */
  42        TX_DELETE,      /* remove (cyclic) transmission task */
  43        TX_READ,        /* read properties of (cyclic) transmission task */
  44        TX_SEND,        /* send one CAN frame */
  45        RX_SETUP,       /* create RX content filter subscription */
  46        RX_DELETE,      /* remove RX content filter subscription */
  47        RX_READ,        /* read properties of RX content filter subscription */
  48        TX_STATUS,      /* reply to TX_READ request */
  49        TX_EXPIRED,     /* notification on performed transmissions (count=0) */
  50        RX_STATUS,      /* reply to RX_READ request */
  51        RX_TIMEOUT,     /* cyclic message is absent */
  52        RX_CHANGED      /* updated CAN frame (detected content change) */
  53};
  54
  55#define SETTIMER            0x0001
  56#define STARTTIMER          0x0002
  57#define TX_COUNTEVT         0x0004
  58#define TX_ANNOUNCE         0x0008
  59#define TX_CP_CAN_ID        0x0010
  60#define RX_FILTER_ID        0x0020
  61#define RX_CHECK_DLC        0x0040
  62#define RX_NO_AUTOTIMER     0x0080
  63#define RX_ANNOUNCE_RESUME  0x0100
  64#define TX_RESET_MULTI_IDX  0x0200
  65#define RX_RTR_FRAME        0x0400
  66
  67#endif /* CAN_BCM_H */
  68