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/* -*- c++ -*- */
/*
* Copyright 2003 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.
*/
#include <sdr_1000.h>
#include <ppio.h>
sdr_1000_base::sdr_1000_base (int which_pp)
{
d_ppio = make_ppio (which_pp);
d_shadow[0] = 0;
d_shadow[1] = 0;
d_shadow[2] = 0;
d_shadow[3] = 0;
reset ();
}
sdr_1000_base::~sdr_1000_base ()
{
}
void
sdr_1000_base::reset ()
{
d_ppio->lock ();
d_ppio->write_control (0x0F);
d_ppio->unlock ();
write_latch (L_EXT, 0x00, 0xff);
write_latch (L_BAND, 0x00, 0xff);
write_latch (L_DDS0, 0x80, 0xff); // hold DDS in reset
write_latch (L_DDS1, 0x00, 0xff);
}
void
sdr_1000_base::write_latch (int which, int value, int mask)
{
if (!(0 <= which && which <= 3))
return;
d_ppio->lock ();
d_shadow[which] = (d_shadow[which] & ~mask) | (value & mask);
d_ppio->write_data (d_shadow[which]);
d_ppio->write_control (0x0F ^ (1 << which));
d_ppio->write_control (0x0F);
d_ppio->unlock ();
}
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