mirror of
git://projects.qi-hardware.com/ben-wpan.git
synced 2024-11-25 06:41:53 +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
/*
|
|
* fw/spi.h - ATmega8 family SPI I/O
|
|
*
|
|
* Written 2011 by Werner Almesberger
|
|
* Copyright 2011 Werner Almesberger
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*/
|
|
|
|
#ifndef SPI_H
|
|
#define SPI_H
|
|
|
|
#include <stdint.h>
|
|
|
|
|
|
void spi_begin(void);
|
|
uint8_t spi_io(uint8_t v);
|
|
void spi_end(void);
|
|
void spi_off(void);
|
|
void spi_init(void);
|
|
|
|
#define spi_send(v) (void) spi_io(v)
|
|
#define spi_recv(v) spi_io(0)
|
|
|
|
#endif /* !SPI_H */
|