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
110 lines
3 KiB
C
110 lines
3 KiB
C
/***************************************************************************
|
|
* __________ __ ___.
|
|
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
|
|
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
|
|
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
|
|
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
|
|
* \/ \/ \/ \/ \/
|
|
* $Id$
|
|
*
|
|
* Copyright (C) 2002 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 "adc.h"
|
|
#include "kernel.h"
|
|
#include "system.h"
|
|
#include "power.h"
|
|
#include "usb.h"
|
|
|
|
#if CONFIG_TUNER
|
|
|
|
bool tuner_power(bool status)
|
|
{
|
|
(void)status;
|
|
return true;
|
|
}
|
|
|
|
#endif /* #if CONFIG_TUNER */
|
|
|
|
void power_init(void)
|
|
{
|
|
PBCR2 &= ~0x0c00; /* GPIO for PB5 */
|
|
or_b(0x20, &PBIORL);
|
|
or_b(0x20, &PBDRL); /* hold power */
|
|
}
|
|
|
|
bool charger_inserted(void)
|
|
{
|
|
/* FM or V2 can also charge from the USB port */
|
|
return (adc_read(ADC_CHARGE_REGULATOR) < 0x1FF);
|
|
}
|
|
|
|
/* Returns true if the unit is charging the batteries. */
|
|
bool charging_state(void)
|
|
{
|
|
/* We use the information from the ADC_EXT_POWER ADC channel, which
|
|
tells us the charging current from the LTC1734. When DC is
|
|
connected (either via the external adapter, or via USB), we try
|
|
to determine if it is actively charging or only maintaining the
|
|
charge. My tests show that ADC readings below about 0x80 means
|
|
that the LTC1734 is only maintaining the charge. */
|
|
return adc_read(ADC_EXT_POWER) >= 0x80;
|
|
}
|
|
|
|
void ide_power_enable(bool on)
|
|
{
|
|
bool touched = false;
|
|
|
|
if(on)
|
|
{
|
|
or_b(0x20, &PADRL);
|
|
touched = true;
|
|
}
|
|
#ifdef HAVE_ATA_POWER_OFF
|
|
if(!on)
|
|
{
|
|
and_b(~0x20, &PADRL);
|
|
touched = true;
|
|
}
|
|
#endif /* HAVE_ATA_POWER_OFF */
|
|
|
|
/* late port preparation, else problems with read/modify/write
|
|
of other bits on same port, while input and floating high */
|
|
if (touched)
|
|
{
|
|
or_b(0x20, &PAIORL); /* PA5 is an output */
|
|
PACR2 &= 0xFBFF; /* GPIO for PA5 */
|
|
}
|
|
}
|
|
|
|
|
|
bool ide_powered(void)
|
|
{
|
|
#ifdef HAVE_ATA_POWER_OFF
|
|
if ((PACR2 & 0x0400) || !(PAIORL & 0x20)) /* not configured for output */
|
|
return true; /* would be floating high, disk on */
|
|
else
|
|
return (PADRL & 0x20) != 0;
|
|
#else /* !defined(NEEDS_ATA_POWER_ON) && !defined(HAVE_ATA_POWER_OFF) */
|
|
return true; /* pretend always powered if not controlable */
|
|
#endif
|
|
}
|
|
|
|
void power_off(void)
|
|
{
|
|
disable_irq();
|
|
and_b(~0x20, &PBDRL);
|
|
or_b(0x20, &PBIORL);
|
|
while(1);
|
|
}
|