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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2007 Dave Chapman
*
* 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 "cpu.h"
#include "kernel.h"
#include "system.h"
#include "power.h"
#include "pcf50606.h"
#include "button-target.h"
#include "tuner.h"
#include "backlight-target.h"
#include "powermgmt.h"
void power_init(void)
{
unsigned char data[3]; /* 0 = INT1, 1 = INT2, 2 = INT3 */
/* Clear pending interrupts from pcf50606 */
pcf50606_read_multiple(0x02, data, 3);
/* Set outputs as per OF - further investigation required. */
pcf50606_write(PCF5060X_DCDEC1, 0xe4);
pcf50606_write(PCF5060X_IOREGC, 0xf5);
pcf50606_write(PCF5060X_D1REGC1, 0xf5);
pcf50606_write(PCF5060X_D2REGC1, 0xe9);
pcf50606_write(PCF5060X_D3REGC1, 0xf8); /* WM8985 3.3v */
pcf50606_write(PCF5060X_DCUDC1, 0xe7);
pcf50606_write(PCF5060X_LPREGC1, 0x0);
pcf50606_write(PCF5060X_LPREGC2, 0x2);
#ifndef BOOTLOADER
IEN |= EXT3_IRQ_MASK; /* Unmask EXT3 */
#endif
}
void power_off(void)
{
/* Turn the backlight off first to avoid a bright stripe on power-off */
_backlight_off();
sleep(HZ/10);
/* Power off the player using the same mechanism as the OF */
GPIOA_CLEAR = (1<<7);
while(true);
}
#ifndef BOOTLOADER
void EXT3(void)
{
unsigned char data[3]; /* 0 = INT1, 1 = INT2, 2 = INT3 */
/* Clear pending interrupts from pcf50606 */
pcf50606_read_multiple(0x02, data, 3);
if (data[0] & 0x04)
{
/* ONKEY1S */
if (!charger_inserted())
sys_poweroff();
else
pcf50606_reset_timeout();
}
if (data[2] & 0x08)
{
/* Touchscreen event, do something about it */
button_read_touch();
}
}
#endif
#if CONFIG_CHARGING
unsigned int power_input_status(void)
{
return ((GPIOC & (1<<26)) == 0) ?
POWER_INPUT_MAIN_CHARGER : POWER_INPUT_NONE;
}
#endif
#if CONFIG_TUNER
/** Tuner **/
static bool powered = false;
bool tuner_power(bool status)
{
bool old_status;
lv24020lp_lock();
old_status = powered;
if (status != old_status)
{
if (status)
{
/* When power up, host should initialize the 3-wire bus
in host read mode: */
/* 1. Set direction of the DATA-line to input-mode. */
GPIOC_DIR &= ~(1 << 30);
/* 2. Drive NR_W low */
GPIOC_CLEAR = (1 << 31);
GPIOC_DIR |= (1 << 31);
/* 3. Drive CLOCK high */
GPIOC_SET = (1 << 29);
GPIOC_DIR |= (1 << 29);
lv24020lp_power(true);
}
else
{
lv24020lp_power(false);
/* set all as inputs */
GPIOC_DIR &= ~((1 << 29) | (1 << 30) | (1 << 31));
}
powered = status;
}
lv24020lp_unlock();
return old_status;
}
#endif /* CONFIG_TUNER */
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