-/**
- * \file
- * <!--
- * This file is part of BeRTOS.
- *
- * Bertos 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * As a special exception, you may use this file as part of a free software
- * library without restriction. Specifically, if other files instantiate
- * templates or use macros or inline functions from this file, or you compile
- * this file and link it with other files to produce an executable, this
- * file does not by itself cause the resulting executable to be covered by
- * the GNU General Public License. This exception does not however
- * invalidate any other reasons why the executable file might be covered by
- * the GNU General Public License.
- *
- * Copyright 2005 Develer S.r.l. (http://www.develer.com/)
- *
- * -->
- *
- * \version $Id$
- *
- * \author Bernardo Innocenti <bernie@develer.com>
- *
- * \brief Low-level timer module for Qt emulator (implementation).
- */
-#include <cfg/compiler.h> /* hptime.t */
-
-// Qt headers
-#include <QtCore/QDateTime>
-#include <QtCore/QTimer>
-
-
-// The user interrupt server routine
-void timer_isr(void);
-
-
-/**
- * Singleton class for Qt-based hardware timer emulation.
- */
-class EmulTimer : public QObject
-{
-private:
- Q_OBJECT;
-
- /// System timer (counts ms since application startup)
- QTime system_time;
-
- /// The 1ms "hardware" tick counter.
- QTimer timer;
-
- /**
- * We deliberately don't use RAII because the real hardware
- * we're simulating needs to be initialized manually.
- */
- bool initialized;
-
- /// Private ctor (singleton)
- EmulTimer() : initialized(false) { }
-
-public:
- /// Return singleton instance
- static EmulTimer &instance()
- {
- static EmulTimer et;
- return et;
- }
-
- /// Start timer emulator.
- void init()
- {
- // Timer initialized twice?
- ASSERT(!initialized);
-
- // Record initial time
- system_time.start();
-
- // Activate timer interrupt
- timer.connect(&timer, SIGNAL(timeout()), this, SLOT(timerInterrupt()));
- timer.start(1000 / TIMER_TICKS_PER_SEC);
-
- initialized = true;
- }
-
- /// Return current time in high-precision format.
- hptime_t hpread()
- {
- ASSERT(initialized);
- return system_time.elapsed();
- }
-
-public slots:
- void timerInterrupt(void)
- {
- // Just call user interrupt server, timer restarts automatically.
- timer_isr();
- }
-
-};
-
-#include "timer_qt_moc.cpp"
-
-
-/// HW dependent timer initialization.
-static void timer_hw_init(void)
-{
- // Kick EmulTimer initialization
- EmulTimer::instance().init();
-}
-
-INLINE hptime_t timer_hw_hpread(void)
-{
- return EmulTimer::instance().hpread();
-}
-
-/** Not needed, timer IRQ handler called only for timer source */
-#define timer_hw_triggered() (true)