58eb784a5d
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19315 a1c6a512-1295-4272-9138-f99709370657
103 lines
3 KiB
C
103 lines
3 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) 2006 by Linus Nielsen Feltzing
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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 "config.h"
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#include "cpu.h"
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#include <stdbool.h>
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#include "kernel.h"
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#include "system.h"
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#include "power.h"
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#include "pcf50606.h"
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#include "backlight.h"
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#include "backlight-target.h"
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#include "usb.h"
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void power_init(void)
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{
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/* Initialize IDE power pin */
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GPGCON=( GPGCON&~(1<<23) ) | (1<<22); /* Make the pin an output */
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GPGUP |= 1<<11; /* Disable pullup in SOC as we are now driving */
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ide_power_enable(true);
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/* Charger detect */
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}
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unsigned int power_input_status(void)
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{
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unsigned int status = POWER_INPUT_NONE;
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/* Is the battery switch ON? */
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if ((GPGDAT & (1 << 9)) == 0)
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status |= POWER_INPUT_BATTERY;
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/* Main or cradle power available? */
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if ((GPFDAT & (1 << 4)) == 0)
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status |= POWER_INPUT_MAIN_CHARGER;
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/* Is the USB cable inserted? */
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if (usb_detect() == USB_INSERTED)
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status |= POWER_INPUT_USB_CHARGER;
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return status;
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}
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/* Returns true if the unit is charging the batteries. */
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bool charging_state(void)
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{
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return (GPGDAT & (1 << 8)) ? false : true;
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}
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void ide_power_enable(bool on)
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{
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if (on)
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GPGDAT |= (1 << 11);
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else
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GPGDAT &= ~(1 << 11);
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}
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bool ide_powered(void)
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{
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return (GPGDAT & (1 << 11)) != 0;
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}
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void power_off(void)
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{
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int(*reboot_point)(void);
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reboot_point=(void*)(unsigned char*) 0x00000000;
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/* turn off backlight and wait for 1 second */
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_backlight_off();
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_buttonlight_off();
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sleep(HZ);
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/* Do this to allow the drive to properly reset when player restarts
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* immediately without running OF shutdown.
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*/
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GPGCON&=~0x00300000;
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/* Rockbox never properly shutdown the player. When the sleep bit is set
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* the player actually wakes up in some type of "zombie" state
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* because the shutdown routine is not set up properly. So far the
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* shutdown routines tried leave the player consuming excess power
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* so we rely on the OF to shut everything down instead. (mmu apears to be
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* reset when the sleep bit is set)
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*/
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CLKCON |=(1<<3);
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reboot_point();
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}
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