Hamlib/microtune/i2cio.h

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2.0 KiB
C
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/* -*-C++-*-
*******************************************************************************
*
* File: i2cio.h
* Description:
*
*******************************************************************************
*/
/*
* Copyright 2001 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 2, 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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef _I2CIO_H_
#define _I2CIO_H_
/*!
* \brief abstract class that implements low level i/o for i2c bus.
*/
class i2cio {
public:
i2cio () :
udelay_scl_lo(0), udelay_scl_hi(0),
udelay_sda_lo(0), udelay_sda_hi(0) {};
virtual ~i2cio ();
virtual void set_scl (bool state) = 0;
virtual void set_sda (bool state) = 0;
virtual bool get_sda () = 0;
void set_udelay_scl_lo (int usecs) { udelay_scl_lo = usecs; }
void set_udelay_scl_hi (int usecs) { udelay_scl_hi = usecs; }
void set_udelay_sda_lo (int usecs) { udelay_sda_lo = usecs; }
void set_udelay_sda_hi (int usecs) { udelay_sda_hi = usecs; }
int get_udelay_scl_lo () { return udelay_scl_lo; }
int get_udelay_scl_hi () { return udelay_scl_hi; }
int get_udelay_sda_lo () { return udelay_sda_lo; }
int get_udelay_sda_hi () { return udelay_sda_hi; }
virtual void lock () = 0;
virtual void unlock () = 0;
private:
int udelay_scl_lo;
int udelay_scl_hi;
int udelay_sda_lo;
int udelay_sda_hi;
};
#endif /* _I2CIO_H_ */