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67 lines
2.1 KiB
C
67 lines
2.1 KiB
C
/* geany_encoding=koi8-r
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* term.h - functions to work with serial terminal
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*
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* Copyright 2017 Edward V. Emelianov <eddy@sao.ru, edward.emelianoff@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 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,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*/
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#pragma once
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#ifndef __TERM_H__
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#define __TERM_H__
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// communication errors
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typedef enum{
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TRANS_SUCCEED = 0, // no errors
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TRANS_ERROR, // some error occured
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TRANS_BADCHSUM, // wrong checksum
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TRANS_TIMEOUT, // no data for 0.1s
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TRANS_TRYAGAIN, // checksum return 0x7f - maybe try again?
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TRANS_BUSY // image exposure in progress
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} trans_status;
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typedef enum{
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PURGE_START = '!',
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MEMORY_DUMP_START = '|',
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BOOT_LOADER_START = '^',
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REQUEST_POLL = 0x01, /* SOH */
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FRAME_START = 0x02, /* STX */
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FRAME_END = '\n',
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} term_symbols;
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#define FRAME_MAX_LENGTH (300)
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#define MAX_MEMORY_DUMP_SIZE (0x800 * 4)
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// terminal timeout (seconds)
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#define WAIT_TMOUT (0.2)
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/******************************** Commands definition ********************************/
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#define CMD_ACK 'a'
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#define CMD_NACK 'n'
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/******************************** Answers definition ********************************/
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#define ANS_COMMAND_ACKED 'A'
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#define ANS_COMMAND_NACKED 'N'
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#define ANS_DATA_FRAME 'M'
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#define ANS_POLLING_FRAME 'P'
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void run_terminal();
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int try_connect(char *device);
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#endif // __TERM_H__
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