| /*************************************************************************** |
| * __________ __ ___. |
| * Open \______ \ ____ ____ | | _\_ |__ _______ ___ |
| * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / |
| * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < |
| * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ |
| * \/ \/ \/ \/ \/ |
| * $Id$ |
| * |
| * Copyright (C) 2005 Jens Arnold |
| * |
| * 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 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" |
| |
| #if defined(CPU_PP) |
| /* 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) |
| #elif CONFIG_CPU == PNX0101 |
| #define TIMER_FREQ 3000000 |
| #elif CONFIG_CPU == S3C2440 || CONFIG_CPU == DM320 || CONFIG_CPU == TCC7801 \ |
| || defined(CPU_TCC77X) |
| #include "timer-target.h" |
| #elif defined(SIMULATOR) |
| #define TIMER_FREQ 1000000 |
| #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) |
| IF_COP(,int core)); |
| bool timer_set_period(long cycles); |
| #ifdef CPU_COLDFIRE |
| void timers_adjust_prescale(int multiplier, bool enable_irq); |
| #endif |
| void timer_unregister(void); |
| |
| /* For target-specific interface use */ |
| extern void (*pfn_timer)(void); |
| extern void (*pfn_unregister)(void); |
| |
| #endif /* __TIMER_H__ */ |