can-bittiming.h

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/* SPDX-License-Identifier: BSD-2-Clause OR Apache-2.0 OR GPL-2.0-or-later */
 
/*
 * Copyright (C) 2023-2024 Michal Lenc <michallenc@seznam.cz>
 * Implementation is based on original LinCAN - Linux CAN bus driver
 * Part of OrtCAN project https://ortcan.sourceforge.net/
 * Copyright (C) 2002-2009 DCE FEE CTU Prague <http://control.fel.cvut.cz>
 * Copyright (C) 2002-2024 Pavel Pisa <pisa@cmp.felk.cvut.cz>
 * Copyright (C) 2005      Stanislav Marek
 *
 * 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.
 *
 * 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 _DEV_CAN_CAN_BITTIMING_H
#define _DEV_CAN_CAN_BITTIMING_H
 
#define RTEMS_CAN_BITTIME_NOMINAL ( 0 )
#define RTEMS_CAN_BITTIME_DATA    ( 1 )
 
#define RTEMS_CAN_BITTIME_FROM_BITRATE      ( 0 )
#define RTEMS_CAN_BITTIME_FROM_PRECOMPUTED  ( 1 )
 
struct rtems_can_bittiming_const {
  const char *name;
  uint32_t tseg1_min;
  uint32_t tseg1_max;
  uint32_t tseg2_min;
  uint32_t tseg2_max;
  uint32_t sjw_max;
  uint32_t brp_min;
  uint32_t brp_max;
  uint32_t brp_inc;
};
 
struct rtems_can_bittiming {
  uint32_t bitrate;
  uint32_t sample_point;
  uint32_t tq;
  uint32_t prop_seg;
  uint32_t phase_seg1;
  uint32_t phase_seg2;
  uint32_t sjw;
  uint32_t brp;
};
 
struct rtems_can_set_bittiming {
  uint16_t type;
  uint16_t from;
  struct rtems_can_bittiming bittiming;
};
 
struct rtems_can_get_bittiming {
  uint16_t type;
  struct rtems_can_bittiming bittiming;
  struct rtems_can_bittiming_const bittiming_const;
};
 
#endif /* _DEV_CAN_CAN_BITTIMING_H */