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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2006 by Linus Nielsen Feltzing
*
* 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 "config.h"
#include "cpu.h"
#include <stdbool.h>
#include "kernel.h"
#include "system.h"
#include "power.h"
#include "pcf50606.h"
#include "backlight.h"
#include "backlight-target.h"
#include "usb.h"
void power_init(void)
{
/* Initialize IDE power pin */
GPGCON=( GPGCON&~(1<<23) ) | (1<<22); /* Make the pin an output */
GPGUP |= 1<<11; /* Disable pullup in SOC as we are now driving */
ide_power_enable(true);
/* Charger detect */
}
unsigned int power_input_status(void)
{
unsigned int status = POWER_INPUT_NONE;
/* Is the battery switch ON? */
if ((GPGDAT & (1 << 9)) == 0)
status |= POWER_INPUT_BATTERY;
/* Main or cradle power available? */
if ((GPFDAT & (1 << 4)) == 0)
status |= POWER_INPUT_MAIN_CHARGER;
/* Is the USB cable inserted? */
if (usb_detect() == USB_INSERTED)
status |= POWER_INPUT_USB_CHARGER;
return status;
}
/* Returns true if the unit is charging the batteries. */
bool charging_state(void)
{
return (GPGDAT & (1 << 8)) ? false : true;
}
void ide_power_enable(bool on)
{
if (on)
GPGDAT |= (1 << 11);
else
GPGDAT &= ~(1 << 11);
}
bool ide_powered(void)
{
return (GPGDAT & (1 << 11)) != 0;
}
void power_off(void)
{
int(*reboot_point)(void);
reboot_point=(void*)(unsigned char*) 0x00000000;
/* turn off backlight and wait for 1 second */
_backlight_off();
_buttonlight_off();
sleep(HZ);
/* Do this to allow the drive to properly reset when player restarts
* immediately without running OF shutdown.
*/
GPGCON&=~0x00300000;
/* Rockbox never properly shutdown the player. When the sleep bit is set
* the player actually wakes up in some type of "zombie" state
* because the shutdown routine is not set up properly. So far the
* shutdown routines tried leave the player consuming excess power
* so we rely on the OF to shut everything down instead. (mmu apears to be
* reset when the sleep bit is set)
*/
CLKCON |=(1<<3);
reboot_point();
}
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