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diff --git a/2004/i/nono/src/io/gpio.h b/2004/i/nono/src/io/gpio.h
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+#ifndef gpio_h
+#define gpio_h
+// gpio.h
+// 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.
+//
+// }}}
+
+/// General Purpose Input/Output.
+class Gpio
+{
+ public:
+ /// Destructeur.
+ virtual ~Gpio (void);
+ /// Change plusieurs sorties.
+ virtual void set (int n, unsigned int bits, int nb);
+ /// Change une sortie.
+ virtual void set (int n, unsigned int bit);
+ /// Racourci pour mettre à 1.
+ void set (int n)
+ { set (n, 1); }
+ /// Racourci pour mettre à 0.
+ void reset (int n)
+ { set (n, 0); }
+ /// Lit plusieurs entrées.
+ virtual unsigned int get (int n, int nb);
+ /// Lit une entrée.
+ virtual unsigned int get (int n);
+ /// Pré-lit plusieurs entrées.
+ virtual bool preget (int n, int nb);
+ /// Pré-lit une entrée.
+ virtual bool preget (int n);
+ /// Change la direction de plusieurs I/O.
+ virtual void dir (int n, unsigned int bits, int nb);
+ /// Change la direction d'un I/O (1 pour I, 0 pour O).
+ virtual void dir (int n, unsigned int bit);
+};
+
+#endif // gpio_h