sja1000.h

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/* SPDX-License-Identifier: BSD-2-Clause OR Apache-2.0 OR GPL-2.0-or-later */
 
/*
* Copyright (C) 2025-2026 Michal Lenc <michallenc@seznam.cz> self-funded
* Copyright (C) 2025-2026 Pavel Pisa <pisa@cmp.felk.cvut.cz> self-funded
* Implementation is based on Linux CTU CAN FD driver
* Copyright (C) 2015-2018 Ondrej Ille <ondrej.ille@gmail.com> FEE CTU
* Copyright (C) 2018-2021 Ondrej Ille <ondrej.ille@gmail.com> self-funded
* Copyright (C) 2018-2019 Martin Jerabek <martin.jerabek01@gmail.com> FEE CTU
* Copyright (C) 2018-2022 Pavel Pisa <pisa@cmp.felk.cvut.cz> FEE CTU/self-funded
*
* 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_SJA1000_H
#define _DEV_CAN_SJA1000_H
 
struct rtems_can_chip;
 
#define RTEMS_SJA1000_HW_REG_SPAN_MASK ( 3 )
#define RTEMS_SJA1000_HW_REG_SPAN_1    ( 0 )
#define RTEMS_SJA1000_HW_REG_SPAN_2    ( 1 )
#define RTEMS_SJA1000_HW_REG_SPAN_4    ( 2 )
 
#define RTEMS_SJA1000_HW_REG_IO_PORT   ( 0x100 )
 
struct rtems_can_chip *rtems_can_sja1000_initialize(
  uintptr_t addr,
  unsigned int hw_options,
  rtems_vector_number irq,
  rtems_task_priority worker_priority,
  rtems_option irq_option,
  unsigned long can_clk_rate
);
 
#endif /* _DEV_CAN_SJA1000_H */