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Implement a secure ICS protocol targeting LoRa Node151 microcontroller for controlling irrigation.
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lora-irrigation/rs485hid/rs485frame.h

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  1. /*-

  2.  * Copyright 2022 John-Mark Gurney.

  3.  *

  4.  * Redistribution and use in source and binary forms, with or without

  5.  * modification, are permitted provided that the following conditions

  6.  * are met:

  7.  * 1. Redistributions of source code must retain the above copyright

  8.  *    notice, this list of conditions and the following disclaimer.

  9.  * 2. Redistributions in binary form must reproduce the above copyright

  10.  *    notice, this list of conditions and the following disclaimer in the

  11.  *    documentation and/or other materials provided with the distribution.

  12.  *

  13.  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND

  14.  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

  15.  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

  16.  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE

  17.  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

  18.  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS

  19.  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

  20.  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

  21.  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY

  22.  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF

  23.  * SUCH DAMAGE.

  24.  *

  25.  */

  26. 

  27. extern const char *rs485err;

  28. 

  29. typedef void (*txdone_fn_t)(void);

  30. typedef void (*rxdone_fn_t)(const uint8_t *pkt, size_t len);

  31. 

  32. void rs485_register(txdone_fn_t, rxdone_fn_t, txdone_fn_t errcb);

  33. 

  34. void rs485_starttx(uint8_t *pkt, size_t len);

  35. int rs485_startrx();