| /*************************************************************************** |
| * __________ __ ___. |
| * Open \______ \ ____ ____ | | _\_ |__ _______ ___ |
| * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / |
| * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < |
| * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ |
| * \/ \/ \/ \/ \/ |
| * $Id$ |
| * |
| * Copyright (C) 2007 by Karl Kurbjun |
| * |
| * 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. |
| * |
| ****************************************************************************/ |
| |
| #include "config.h" |
| #include "system.h" |
| #include "kernel.h" |
| #include "timer.h" |
| #include "thread.h" |
| |
| extern void (*tick_funcs[MAX_NUM_TICK_TASKS])(void); |
| |
| void tick_start(unsigned int interval_in_ms) |
| { |
| IO_TIMER1_TMMD = CONFIG_TIMER1_TMMD_STOP; |
| |
| /* Setup the Prescalar (Divide by 10) |
| * Based on linux/include/asm-arm/arch-integrator/timex.h |
| */ |
| IO_TIMER1_TMPRSCL = 0x000A; |
| |
| /* Setup the Divisor */ |
| IO_TIMER1_TMDIV = (TIMER_FREQ / (10*1000))*interval_in_ms; |
| |
| /* Turn Timer1 to Free Run mode */ |
| IO_TIMER1_TMMD = CONFIG_TIMER1_TMMD_FREE_RUN; |
| |
| /* Enable the interrupt */ |
| IO_INTC_EINT0 |= 1<<IRQ_TIMER1; |
| } |
| |
| void TIMER1(void) |
| { |
| int i; |
| |
| /* Run through the list of tick tasks */ |
| for(i = 0; i < MAX_NUM_TICK_TASKS; i++) |
| { |
| if(tick_funcs[i]) |
| { |
| tick_funcs[i](); |
| } |
| } |
| |
| current_tick++; |
| |
| IO_INTC_IRQ0 = 1<<IRQ_TIMER1; |
| } |