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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2005 Jens Arnold
*
* All files in this archive are subject to the GNU General Public License.
* See the file COPYING in the source tree root for full license agreement.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#ifndef __TIMER_H__
#define __TIMER_H__
#include <stdbool.h>
#include "config.h"
#ifndef SIMULATOR
#if CONFIG_CPU == PP5020 || CONFIG_CPU == PP5002
/* Portalplayer chips use a microsecond timer. */
#define TIMER_FREQ 1000000
#elif defined(CPU_COLDFIRE)
/* timer is based on busclk == cpuclk/2 */
#define TIMER_FREQ (CPU_FREQ/2)
#else
#define TIMER_FREQ CPU_FREQ
#endif
bool timer_register(int reg_prio, void (*unregister_callback)(void),
long cycles, int int_prio, void (*timer_callback)(void));
bool timer_set_period(long cycles);
#ifdef CPU_COLDFIRE
void timers_adjust_prescale(int multiplier, bool enable_irq);
#endif
void timer_unregister(void);
#endif /* !SIMULATOR */
#endif /* __TIMER_H__ */
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