mirror of
git://projects.qi-hardware.com/ben-wpan.git
synced 2024-11-05 07:27:31 +02:00
ec7c93789a
- spi.h (spi_off), spi.c: disable the UART - spi.c (spi_initialized, spi_begin, spi_init): initialize the UART if necessary - board_app.c (gpio): call spi_off to disable the UART instead of open-coding the operation - board_app.c (gpio): don't explicitly re-enable the UART but defer it to the next communication
29 lines
628 B
C
29 lines
628 B
C
/*
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* fw/spi.h - ATmega8 family SPI I/O
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*
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* Written 2011 by Werner Almesberger
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* Copyright 2011 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 SPI_H
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#define SPI_H
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#include <stdint.h>
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void spi_begin(void);
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uint8_t spi_io(uint8_t v);
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void spi_end(void);
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void spi_off(void);
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void spi_init(void);
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#define spi_send(v) (void) spi_io(v)
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#define spi_recv(v) spi_io(0)
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#endif /* !SPI_H */
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