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+// gpio.cc
+// nono - programme du robot 2004. {{{
+//
+// Copyright (C) 2004 Nicolas Schodet
+//
+// Robot APB Team/Efrei 2004.
+// Web: http://assos.efrei.fr/robot/
+// Email: robot AT efrei DOT fr
+//
+// This program 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 of the License, or
+// (at your option) any later version.
+//
+// This program 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 this program; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+//
+// }}}
+#include "gpio.h"
+
+/// Destructeur.
+Gpio::~Gpio (void)
+{
+}
+
+/// Change plusieurs sorties.
+void
+Gpio::set (int n, unsigned int bits, int nb)
+{
+ for (int i = 0; i < nb; ++i)
+ {
+ set (n + i, bits & 1);
+ bits >>= 1;
+ }
+}
+
+/// Change une sortie.
+void
+Gpio::set (int n, unsigned int bit)
+{
+}
+
+/// Lit plusieurs entrées.
+unsigned int
+Gpio::get (int n, int nb)
+{
+ unsigned int bits = 0;
+ for (int i = nb - 1; i >= 0; --i)
+ {
+ bits <<= 1;
+ bits |= get (n + i) & 1;
+ }
+ return bits;
+}
+
+/// Lit une entrée.
+unsigned int
+Gpio::get (int n)
+{
+ return 0;
+}
+
+/// Pré-lit plusieurs entrées.
+bool
+Gpio::preget (int n, int nb)
+{
+ bool ok = true;
+ for (int i = nb - 1; i >= 0; --i)
+ {
+ ok &= preget (n + i);
+ }
+ return ok;
+}
+
+/// Pré-lit une entrée.
+bool
+Gpio::preget (int n)
+{
+ return true;
+}
+
+/// Change la direction de plusieurs I/O.
+void
+Gpio::dir (int n, unsigned int bits, int nb)
+{
+ for (int i = 0; i < nb; ++i)
+ {
+ dir (n + i, bits & 1);
+ bits >>= 1;
+ }
+}
+
+/// Change la direction d'un I/O (1 pour I, 0 pour O).
+void
+Gpio::dir (int n, unsigned int bit)
+{
+}
+