89 lines
2.8 KiB
C
89 lines
2.8 KiB
C
/****************************************************************************
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* include/nuttx/lin.h
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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#ifndef __INCLUDE_NUTTX_LIN_H
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#define __INCLUDE_NUTTX_LIN_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <nuttx/can.h>
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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#define LIN_ID_BITS 6
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#define LIN_ID_MASK ((1 << LIN_ID_BITS) - 1)
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#define LIN_ID_MAX LIN_ID_MASK
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#define LIN_CTRL_FRAME CAN_EFF_FLAG
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/* When slave response to master, slave node should send frame immediately
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* which already be cached in last transmission in case of response interval
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* over time;
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*/
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#define LIN_CACHE_RESPONSE (1 << (LIN_ID_BITS))
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/* LIN checksum have two types, default type will be classic checksum */
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#define LIN_CHECKSUM_EXTENDED (1 << (LIN_ID_BITS + 1))
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/* Cache LIN frame only work once. then will be clear */
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#define LIN_SINGLE_RESPONSE (1 << (LIN_ID_BITS + 2))
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/* Error flags */
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#define LIN_ERR_RX_TIMEOUT (1 << (LIN_ID_BITS + 3))
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#define LIN_ERR_CHECKSUM (1 << (LIN_ID_BITS + 4))
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#define LIN_ERR_FRAMING (1 << (LIN_ID_BITS + 5))
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/* TxConfirmation flag */
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#define LIN_TCF_FRAMING (1 << (LIN_ID_BITS + 6))
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/* Event flag */
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#define LIN_EVT_FRAMING (1 << (LIN_ID_BITS + 7))
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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#undef EXTERN
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#if defined(__cplusplus)
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#define EXTERN extern "C"
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extern "C"
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{
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#else
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#define EXTERN extern
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#endif
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#undef EXTERN
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#if defined(__cplusplus)
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}
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#endif
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#endif /* __INCLUDE_NUTTX_LIN_H */
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