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kernel/linux-rt-4.4.41/include/uapi/linux/can/bcm.h 3.91 KB
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  /*
   * 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[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
  
  #endif /* !_UAPI_CAN_BCM_H */