rockbox/firmware/target/arm/samsung/power-yh82x_yh92x.c
Szymon Dziok 2172c11849 Samsung YH820/YH92X: different way of powering off to avoid powering
on after powering off in a loop on YH92X.

Change-Id: I5e5a4fe23c87286045ac82aff5c38bff6331a7f4
2015-10-14 21:23:46 +02:00

105 lines
2.5 KiB
C

/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2009 by Mark Arigo
*
* 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.
*
****************************************************************************/
/* Created from power.c using some iPod code, and some custom stuff based on
GPIO analysis
*/
#include "config.h"
#include "cpu.h"
#include <stdbool.h>
#include "adc.h"
#include "kernel.h"
#include "system.h"
#include "power.h"
#include "logf.h"
#include "usb.h"
#include "fmradio_3wire.h"
#if CONFIG_TUNER
bool tuner_power(bool status)
{
GPIO_SET_BITWISE(GPIOL_ENABLE, 0x04);
GPIO_SET_BITWISE(GPIOL_OUTPUT_EN, 0x04);
if (status)
GPIO_CLEAR_BITWISE(GPIOL_OUTPUT_VAL, 0x04);
else
GPIO_SET_BITWISE(GPIOL_OUTPUT_VAL, 0x04);
return status;
}
#endif
void power_init(void)
{
#if CONFIG_TUNER
fmradio_3wire_init();
#endif
}
unsigned int power_input_status(void)
{
unsigned int status = POWER_INPUT_NONE;
if (GPIOL_INPUT_VAL & 0x80)
status = POWER_INPUT_MAIN_CHARGER;
if (GPIOD_INPUT_VAL & 0x10)
status |= POWER_INPUT_USB_CHARGER;
return status;
}
void ide_power_enable(bool on)
{
#if defined(SAMSUNG_YH920) || defined(SAMSUNG_YH925)
if (on)
{
GPIO_CLEAR_BITWISE(GPIOF_OUTPUT_VAL, 0x10);
DEV_EN |= DEV_IDE0;
}
else
{
DEV_EN &= ~DEV_IDE0;
GPIO_SET_BITWISE(GPIOF_OUTPUT_VAL, 0x10);
}
#else
(void)on;
/* We do nothing */
#endif
}
bool ide_powered(void)
{
#if defined(SAMSUNG_YH920) || defined(SAMSUNG_YH925)
return ((GPIOF_INPUT_VAL & 0x10) == 0);
#else
/* pretend we are always powered - we don't turn it off */
return true;
#endif
}
void power_off(void)
{
/* power off bit */
GPIOK_ENABLE |= 0x40;
GPIOK_OUTPUT_VAL &= ~0x40;
GPIOK_OUTPUT_EN |= 0x40;
}