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rockbox/firmware/drivers/power.c
Linus Nielsen Feltzing 192a604cd4 Atomic GPIO access 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7114 a1c6a512-1295-4272-9138-f99709370657
2005-07-12 07:25:01 +00:00

296 lines
6.5 KiB
C
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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2002 by Linus Nielsen Feltzing
*
* All files in this archive are subject to the GNU General Public License.
* See the file COPYING in the source tree root for full license agreement.
*
* 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 "hwcompat.h"
#ifdef HAVE_CHARGE_CTRL
bool charger_enabled;
#endif
#ifdef CONFIG_TUNER
static int fmstatus = 0;
void radio_set_status(int status)
{
fmstatus = status;
#ifdef HAVE_TUNER_PWR_CTRL
if (status)
{
and_b(~0x04, &PADRL); /* drive PA2 low for tuner enable */
sleep(1); /* let the voltage settle */
}
else
or_b(0x04, &PADRL); /* drive PA2 high for tuner disable */
#endif
}
int radio_get_status(void)
{
return fmstatus;
}
#endif /* #ifdef CONFIG_TUNER */
#ifndef SIMULATOR
void power_init(void)
{
#if CONFIG_CPU == MCF5249
or_l(0x00080000, &GPIO1_OUT);
or_l(0x00080000, &GPIO1_ENABLE);
or_l(0x00080000, &GPIO1_FUNCTION);
#ifdef BOOTLOADER
/* Hard drive power default = off in bootloader*/
or_l(0x80000000, &GPIO_OUT);
#endif
or_l(0x80000000, &GPIO_ENABLE);
or_l(0x80000000, &GPIO_FUNCTION);
#ifdef HAVE_SPDIF_POWER
spdif_power_enable(false);
#endif
#else
#ifdef HAVE_POWEROFF_ON_PB5
PBCR2 &= ~0x0c00; /* GPIO for PB5 */
or_b(0x20, &PBIORL);
or_b(0x20, &PBDRL); /* hold power */
#endif
#ifdef HAVE_CHARGE_CTRL
PBCR2 &= ~0x0c00; /* GPIO for PB5 */
or_b(0x20, &PBIORL); /* Set charging control bit to output */
charger_enable(false); /* Default to charger OFF */
#endif
#ifdef HAVE_TUNER_PWR_CTRL
PACR2 &= ~0x0030; /* GPIO for PA2 */
or_b(0x04, &PADRL); /* drive PA2 high for tuner disable */
or_b(0x04, &PAIORL); /* output for PA2 */
#endif
#endif
}
bool charger_inserted(void)
{
#if CONFIG_CPU == MCF5249
return (GPIO1_READ & 0x00400000)?true:false;
#elif defined(GMINI_ARCH)
return (P7 & 0x80) == 0;
#else
#ifdef HAVE_CHARGING
#ifdef HAVE_CHARGE_CTRL
/* Recorder */
return adc_read(ADC_EXT_POWER) > 0x100;
#else
#ifdef HAVE_FMADC
/* FM or V2, can also charge from the USB port */
return (adc_read(ADC_CHARGE_REGULATOR) < 0x1FF) ||
(adc_read(ADC_USB_POWER) < 0x1FF);
#else
/* Player */
return (PADR & 1) == 0;
#endif /* HAVE_FMADC */
#endif /* HAVE_CHARGE_CTRL */
#else
/* Ondio */
return false;
#endif /* HAVE_CHARGING */
#endif
}
#ifdef HAVE_CHARGE_CTRL
void charger_enable(bool on)
{
if(on)
{
and_b(~0x20, &PBDRL);
charger_enabled = 1;
}
else
{
or_b(0x20, &PBDRL);
charger_enabled = 0;
}
}
#endif
#ifdef HAVE_SPDIF_POWER
void spdif_power_enable(bool on)
{
or_l(0x01000000, &GPIO1_FUNCTION);
or_l(0x01000000, &GPIO1_ENABLE);
#ifdef SPDIF_POWER_INVERTED
if(!on)
#else
if(on)
#endif
and_l(~0x01000000, &GPIO1_OUT);
else
or_l(0x01000000, &GPIO1_OUT);
}
#endif
#ifndef HAVE_MMC
void ide_power_enable(bool on)
{
(void)on;
#if CONFIG_CPU == MCF5249
if(on)
and_l(~0x80000000, &GPIO_OUT);
else
or_l(0x80000000, &GPIO_OUT);
#elif defined(GMINI_ARCH)
if(on)
P1 |= 0x08;
else
P1 &= ~0x08;
#else /* SH1 based archos */
bool touched = false;
#ifdef NEEDS_ATA_POWER_ON
if(on)
{
#ifdef ATA_POWER_PLAYERSTYLE
or_b(0x10, &PBDRL);
#else
or_b(0x20, &PADRL);
#endif
touched = true;
}
#endif /* NEEDS_ATA_POWER_ON */
#ifdef HAVE_ATA_POWER_OFF
if(!on)
{
#ifdef ATA_POWER_PLAYERSTYLE
and_b(~0x10, &PBDRL);
#else
and_b(~0x20, &PADRL);
#endif
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)
{
#ifdef ATA_POWER_PLAYERSTYLE
or_b(0x10, &PBIORL); /* PB4 is an output */
PBCR2 &= ~0x0300; /* GPIO for PB4 */
#else
or_b(0x20, &PAIORL); /* PA5 is an output */
PACR2 &= 0xFBFF; /* GPIO for PA5 */
#endif
}
#endif /* SH1 based archos */
}
bool ide_powered(void)
{
#if CONFIG_CPU == MCF5249
return (GPIO_OUT & 0x80000000)?false:true;
#elif defined(GMINI_ARCH)
return (P1 & 0x08?true:false);
#else /* SH1 based archos */
#if defined(NEEDS_ATA_POWER_ON) || defined(HAVE_ATA_POWER_OFF)
#ifdef ATA_POWER_PLAYERSTYLE
/* This is not correct for very old players, since these are unable to
* control hd power. However, driving the pin doesn't hurt, because it
* is not connected anywhere */
if ((PBCR2 & 0x0300) || !(PBIORL & 0x10)) /* not configured for output */
return false; /* would be floating low, disk off */
else
return (PBDRL & 0x10) != 0;
#else /* !ATA_POWER_PLAYERSTYLE */
if ((PACR2 & 0x0400) || !(PAIORL & 0x20)) /* not configured for output */
return true; /* would be floating high, disk on */
else
return (PADRL & 0x20) != 0;
#endif /* !ATA_POWER_PLAYERSTYLE */
#else /* !defined(NEEDS_ATA_POWER_ON) && !defined(HAVE_ATA_POWER_OFF) */
return true; /* pretend always powered if not controlable */
#endif
#endif
}
#endif /* !HAVE_MMC */
void power_off(void)
{
set_irq_level(HIGHEST_IRQ_LEVEL);
#if CONFIG_CPU == MCF5249
and_l(~0x00080000, &GPIO1_OUT);
#elif defined(GMINI_ARCH)
P1 &= ~1;
P1CON &= ~1;
#else
#ifdef HAVE_POWEROFF_ON_PBDR
and_b(~0x10, &PBDRL);
or_b(0x10, &PBIORL);
#elif defined(HAVE_POWEROFF_ON_PB5)
and_b(~0x20, &PBDRL);
or_b(0x20, &PBIORL);
#else
/* Disable the backlight */
and_b(~0x40, &PAIORH);
and_b(~0x08, &PADRH);
or_b(0x08, &PAIORH);
#endif
#endif
while(1);
}
#else
bool charger_inserted(void)
{
return false;
}
void charger_enable(bool on)
{
(void)on;
}
void power_off(void)
{
}
void ide_power_enable(bool on)
{
(void)on;
}
#ifdef HAVE_SPDIF_POWER
void spdif_power_enable(bool on)
{
(void)on;
}
#endif
#endif /* SIMULATOR */
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