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/* -*- c++ -*- */
/*
* Copyright 2004 Free Software Foundation, Inc.
*
* This file is part of GNU Radio
*
* GNU Radio 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 3, or (at your option)
* any later version.
*
* GNU Radio is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNU Radio; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#ifndef INCLUDED_SPI_H
#define INCLUDED_SPI_H
#include "usrp_spi_defs.h"
void init_spi (void); // one time call to init
// returns non-zero if successful, else 0
unsigned char
spi_read (unsigned char header_hi, unsigned char header_lo,
unsigned char enables, unsigned char format,
xdata unsigned char *buf, unsigned char len);
// returns non-zero if successful, else 0
unsigned char
spi_write (unsigned char header_hi, unsigned char header_lo,
unsigned char enables, unsigned char format,
const xdata unsigned char *buf, unsigned char len);
// returns non-zero if successful, else 0
unsigned char
spi_transact (unsigned char data0, unsigned char data1,
unsigned char data2, unsigned char data3,
unsigned char enables, xdata unsigned char *buf,
unsigned char len);
#endif /* INCLUDED_SPI_H */
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