123bebeada
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@28567 a1c6a512-1295-4272-9138-f99709370657
130 lines
3.3 KiB
C
130 lines
3.3 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) 2010 Marcin Bukat
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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 "lcd.h"
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#include "power.h"
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#if CONFIG_TUNER
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bool tuner_power(bool status)
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{
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if (status)
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and_l(~(1<<17), &GPIO1_OUT);
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else
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or_l((1<<17), &GPIO1_OUT);
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return status;
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}
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#endif /* #if CONFIG_TUNER */
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void power_init(void)
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{
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/* GPIO53 has to be high - low resets device
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* it is setup in crt0.S
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*/
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/* GPIO50 is ATA power (default OFF) */
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or_l((1<<18), &GPIO1_OUT);
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or_l((1<<18), &GPIO1_ENABLE);
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or_l((1<<18), &GPIO1_FUNCTION);
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/* GPIO49 is FM power (default OFF) */
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or_l((1<<17), &GPIO1_OUT);
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or_l((1<<17), &GPIO1_ENABLE);
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or_l((1<<17), &GPIO1_FUNCTION);
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/* GPIO46 is wall charger detect (input) */
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and_l(~(1<<14), &GPIO1_ENABLE);
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or_l((1<<14), &GPIO1_FUNCTION);
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/* GPIO31 needs to be low */
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and_l(~(1<<31), &GPIO_OUT);
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or_l((1<<31),&GPIO_ENABLE);
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or_l((1<<31),&GPIO_FUNCTION);
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/* turn off charger by default*/
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or_l((1<<23), &GPIO_OUT);
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or_l((1<<23), &GPIO_ENABLE);
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or_l((1<<23), &GPIO_FUNCTION);
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/* high current charge mode */
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or_l((1<<15), &GPIO_OUT);
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or_l((1<<15),&GPIO_ENABLE);
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or_l((1<<15),&GPIO_FUNCTION);
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#ifndef BOOTLOADER
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/* The boot loader controls the power */
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ide_power_enable(true);
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#endif
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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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/* GPIO46 is AC plug detect (low = AC plugged) */
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if (!(GPIO1_READ & (1<<14)))
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{
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status |= POWER_INPUT_MAIN_CHARGER;
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/* tristate GPIO23 to start charging cycle */
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and_l(~(1<<23), &GPIO_ENABLE);
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}
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else
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{
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/* drive GPIO23 high to enter LTC1733 shutdown mode */
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or_l((1<<23), &GPIO_ENABLE);
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}
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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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if (!(GPIO1_READ & (1<<14)))
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return (GPIO_READ & (1<<30) )?false:true;
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else
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return false;
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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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and_l(~(1<<18),&GPIO1_OUT);
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else
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or_l((1<<18),&GPIO1_OUT);
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}
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bool ide_powered(void)
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{
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return (GPIO1_OUT & (1<<18))?false:true;
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}
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void power_off(void)
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{
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lcd_shutdown();
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set_irq_level(DISABLE_INTERRUPTS);
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and_l(~(1<<21), &GPIO1_OUT); /* pull KEEPACT low */
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asm("halt");
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while(1);
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}
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