62 lines
1.7 KiB
C
62 lines
1.7 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2011 by Amaury Pouly
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include "kernel.h"
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#include "timrot-imx233.h"
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#include "timer.h"
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#define USER_TIMER_NR 1
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static long timer_cycles = 0;
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static void timer_fn(void)
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{
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if(pfn_timer)
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pfn_timer();
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}
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bool timer_set(long cycles, bool start)
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{
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timer_stop();
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if(start && pfn_unregister)
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{
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pfn_unregister();
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pfn_unregister = NULL;
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}
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timer_cycles = cycles;
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return true;
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}
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bool timer_start(IF_COP_VOID(int core))
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{
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imx233_setup_timer(USER_TIMER_NR, true, timer_cycles,
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BV_TIMROT_TIMCTRLn_SELECT__32KHZ_XTAL, BV_TIMROT_TIMCTRLn_PRESCALE__DIV_BY_1,
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false, &timer_fn);
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return true;
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}
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void timer_stop(void)
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{
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imx233_setup_timer(USER_TIMER_NR, false, 0, BV_TIMROT_TIMCTRLn_SELECT__NEVER_TICK,
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BV_TIMROT_TIMCTRLn_PRESCALE__DIV_BY_1, false, NULL);
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}
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