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36 lines
910 B
C
36 lines
910 B
C
/*
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* include/ubb/swuart.h - Software-implemented UART for UBB
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*
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* Written 2012 by Werner Almesberger
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* Copyright 2012 Werner Almesberger
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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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#ifndef UBB_SWUART_H
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#define UBB_SWUART_H
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#include <stdint.h>
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struct swuart_err {
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unsigned glitch; /* unstable start bit */
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unsigned framing; /* stop bit wasn't "1" */
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unsigned overflow; /* buffer overflow */
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};
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int swuart_trx(void *out, int out_size, void *in, int in_size,
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int wait_bits, int idle_bits);
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unsigned swuart_get_errors(struct swuart_err *res);
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void swuart_clear_errors(void);
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int swuart_open(uint32_t tx, uint32_t rx, int bps);
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void swuart_close(void);
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#endif /* !UBB_SWUART_H */
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