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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
*
* Copyright (C) 2011-2013 by Lorenzo Miori
*
* 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 <stdlib.h>
#include <string.h>
#include <inttypes.h>
#include "system.h"
#include "panic.h"
#include "debug.h"
#if defined(HAVE_SDL_AUDIO) || defined(HAVE_SDL_THREADS) || defined(HAVE_SDL)
#include <SDL.h>
#endif
#include "ascodec.h"
#include "gpio-target.h"
void power_off(void)
{
/* Something that we need to do before exit on our platform YPR0 */
ascodec_close();
gpio_close();
exit(EXIT_SUCCESS);
}
uintptr_t *stackbegin;
uintptr_t *stackend;
void system_init(void)
{
int *s;
/* fake stack, OS manages size (and growth) */
stackbegin = stackend = (uintptr_t*)&s;
#if defined(HAVE_SDL_AUDIO) || defined(HAVE_SDL_THREADS) || defined(HAVE_SDL)
SDL_Init(0); /* need this if using any SDL subsystem */
#endif
/* Here begins our platform specific initilization for various things */
ascodec_init();
gpio_init();
}
void system_reboot(void)
{
power_off();
}
void system_exception_wait(void)
{
system_reboot();
}
#ifdef HAVE_ADJUSTABLE_CPU_FREQ
#include <stdio.h>
#include "file.h"
/* This is the Linux Kernel CPU governor... */
static void set_cpu_freq(int speed)
{
char temp[10];
int cpu_dev;
cpu_dev = open("/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed", O_WRONLY);
if (cpu_dev < 0)
return;
write(cpu_dev, temp, sprintf(temp, "%d", speed) + 1);
close(cpu_dev);
}
void set_cpu_frequency(long frequency)
{
switch (frequency)
{
case CPUFREQ_MAX:
set_cpu_freq(532000);
cpu_frequency = CPUFREQ_MAX;
break;
case CPUFREQ_NORMAL:
set_cpu_freq(400000);
cpu_frequency = CPUFREQ_NORMAL;
break;
default:
set_cpu_freq(200000);
cpu_frequency = CPUFREQ_DEFAULT;
break;
}
}
#endif
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