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/*

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 * Copyright (c) 2002,2016 Mario de Sousa (msousa@fe.up.pt)

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 *

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 * This file is part of the Modbus library for Beremiz and matiec.

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 *

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 * This Modbus library is free software: you can redistribute it and/or modify

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 * it under the terms of the GNU Lesser General Public License as published by

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 * the Free Software Foundation, either version 3 of the License, or

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 * (at your option) any later version.

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 *

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 * This program is distributed in the hope that it will be useful, but

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 * WITHOUT ANY WARRANTY; without even the implied warranty of

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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser 

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 * General Public License for more details.

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 *

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 * You should have received a copy of the GNU Lesser General Public License

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 * along with this Modbus library.  If not, see <http://www.gnu.org/licenses/>.

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 *

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 * This code is made available on the understanding that it will not be

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 * used in safety-critical situations without a full and competent review.

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 */

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#ifndef MODBUS_ASCII_PRIVATE_H

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#define MODBUS_ASCII_PRIVATE_H

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#include "mb_util.h"

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/* serial port default configuration... */

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#define DEF_DATA_BITS 7

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#define DEF_STOP_BITS_PAR 1 /* default stop bits if parity is used     */

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#define DEF_STOP_BITS_NOP 2 /* default stop bits if parity is not used */

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#define DEF_BAUD_RATE 9600

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/* Send retries of ascii frames... */

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#define ASC_FRAME_SEND_RETRY 0

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  /* NOTES:

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   *  - the above are the retries at the layer1 level,

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   *    higher layers may decide to retry for themselves!

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   *  - For ascii frames, it doesn't make much sense to retry

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   *    if the first try failed...

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   */

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/* Buffer sizes... */

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#define SEND_BUFFER_SIZE_SMALL  (MAX_ASC_FRAME_LENGTH / 2)

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#define SEND_BUFFER_SIZE_LARGE  (MAX_ASC_FRAME_LENGTH)

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#define RECV_BUFFER_SIZE_SMALL  (MAX_ASC_FRAME_LENGTH / 2)

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#define RECV_BUFFER_SIZE_LARGE  (MAX_ASC_FRAME_LENGTH)

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/* Frame lengths... */

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/* The smallest element in an ascii frame.

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 * This is used later to define the smallest value of certain buffers...

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 */

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#define ASC_FRAME_MIN_ELE_LENGTH   ASC_FRAME_HEADER_LENGTH

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#if     ASC_FRAME_MIN_ELE_LENGTH < ASC_FRAME_TAIL_LENGTH

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#undef  ASC_FRAME_MIN_ELE_LENGTH

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#define ASC_FRAME_MIN_ELE_LENGTH   ASC_FRAME_TAIL_LENGTH

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#endif

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#if     ASC_FRAME_MIN_ELE_LENGTH < ASC_FRAME_LRC_LENGTH

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#undef  ASC_FRAME_MIN_ELE_LENGTH

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#define ASC_FRAME_MIN_ELE_LENGTH   ASC_FRAME_LRC_LENGTH

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#endif

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#if     ASC_FRAME_MIN_ELE_LENGTH < L2_TO_ASC_CODING

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#undef  ASC_FRAME_MIN_ELE_LENGTH

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#define ASC_FRAME_MIN_ELE_LENGTH   L2_TO_ASC_CODING

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#endif

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#endif  /* MODBUS_ASCII_PRIVATE_H */

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