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/*
* Author: Benedikt Sauter <sauter@ixbat.de>
* All rights reserved.
*
* Short descripton of file:
*
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* * Neither the name of the FH Augsburg nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef SPI_H
#define SPI_H
#include <avr/io.h>
#include <avr/pgmspace.h>
#define MOSI PB2
#define MISO PB3
#define SCK PB1
enum { SPI_SPEED_125kHz, SPI_SPEED_250kHz, SPI_SPEED_500kHz, SPI_SPEED_1MHz,
SPI_SPEED_2MHz, SPI_SPEED_4MHz, SPI_SPEED_8MHz };
void spi_parser(char *buf);
void spi_init_usb(uint8_t dord, uint8_t mode, uint8_t speed);
int spi_init(uint8_t dord, uint8_t mode, uint8_t speed);
void spi_deinit_usb(void);
int spi_deinit(void);
void spi_send_usb(uint8_t length, char * buf);
int spi_send(int length, char * buf);
void spi_receive_usb(int length);
unsigned char spi_receive(int length, char * buf);
void spi_send_and_receive_usb(char * txbuf, int length);
int spi_send_and_receive(char * txbuf, char * rxbuf, int length);
#endif /* SPI_H */
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