2acc0ac542
later. We still need to hunt down snippets used that are not. 1324 modified files... http://www.rockbox.org/mail/archive/rockbox-dev-archive-2008-06/0060.shtml git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17847 a1c6a512-1295-4272-9138-f99709370657
62 lines
2 KiB
C
62 lines
2 KiB
C
/***************************************************************************
|
|
* __________ __ ___.
|
|
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
|
|
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
|
|
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
|
|
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
|
|
* \/ \/ \/ \/ \/
|
|
* $Id: timer.h 13806 2007-07-06 21:36:32Z jethead71 $
|
|
*
|
|
* Copyright (C) 2005 Kévin Ferrare
|
|
*
|
|
* 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.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#include "timer.h"
|
|
#include <SDL_timer.h>
|
|
|
|
static int timer_prio = -1;
|
|
void (*global_timer_callback)(void);
|
|
SDL_TimerID timerId;
|
|
|
|
Uint32 SDL_timer_callback(Uint32 interval, void *param){
|
|
(void)param;
|
|
global_timer_callback();
|
|
return(interval);
|
|
}
|
|
|
|
#define cycles_to_miliseconds(cycles) \
|
|
((int)((1000*cycles)/TIMER_FREQ))
|
|
|
|
bool timer_register(int reg_prio, void (*unregister_callback)(void),
|
|
long cycles, int int_prio, void (*timer_callback)(void))
|
|
{
|
|
(void)int_prio;/* interrupt priority not used */
|
|
(void)unregister_callback;
|
|
if (reg_prio <= timer_prio || cycles == 0)
|
|
return false;
|
|
timer_prio=reg_prio;
|
|
global_timer_callback=timer_callback;
|
|
timerId=SDL_AddTimer(cycles_to_miliseconds(cycles), SDL_timer_callback, 0);
|
|
return true;
|
|
}
|
|
|
|
bool timer_set_period(long cycles)
|
|
{
|
|
SDL_RemoveTimer (timerId);
|
|
timerId=SDL_AddTimer(cycles_to_miliseconds(cycles), SDL_timer_callback, 0);
|
|
return true;
|
|
}
|
|
|
|
void timer_unregister(void)
|
|
{
|
|
SDL_RemoveTimer (timerId);
|
|
timer_prio = -1;
|
|
}
|