3 * Copyright 2001,2004 Free Software Foundation, Inc.
5 * This file is part of GNU Radio
7 * GNU Radio is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2, or (at your option)
12 * GNU Radio is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with GNU Radio; see the file COPYING. If not, write to
19 * the Free Software Foundation, Inc., 51 Franklin Street,
20 * Boston, MA 02110-1301, USA.
23 #ifndef INCLUDED_I2C_BITBANG_H
24 #define INCLUDED_I2C_BITBANG_H
30 * \brief class for controlling i2c bus
32 class i2c_bitbang : public i2c {
33 friend i2c_sptr make_i2c_bitbang (i2c_bbio_sptr io);
34 i2c_bitbang (i2c_bbio_sptr io);
39 //! \returns true iff successful
40 bool write (int addr, const unsigned char *buf, int nbytes);
42 //! \returns number of bytes read or -1 if error
43 int read (int addr, unsigned char *buf, int max_bytes);
49 void write_bit (bool bit);
50 bool write_byte (char byte);
52 void set_sda (bool bit) { d_io->set_sda (bit); }
53 void set_scl (bool bit) { d_io->set_scl (bit); }
54 bool get_sda () { return d_io->get_sda (); }
59 i2c_sptr make_i2c_bitbang (i2c_bbio_sptr io);
61 #endif /* INCLUDED_I2C_BITBANG_H */