166 lines
3.8 KiB
C
166 lines
3.8 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) 2007 Dave Chapman
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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 "cpu.h"
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#include "kernel.h"
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#include "system.h"
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#include "power.h"
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#include "pcf50606.h"
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#include "pcf50635.h"
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#include "button-target.h"
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#include "touchscreen-target.h"
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#include "tuner.h"
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#include "backlight-target.h"
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#include "powermgmt.h"
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#include "power-target.h"
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static enum pmu_type pmu;
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enum pmu_type get_pmu_type()
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{
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return pmu;
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}
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void power_init(void)
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{
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/* Configure GPA6 as input and wait a short while */
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GPIOA_DIR &= ~(1<<6);
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udelay(10);
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/* Value of GPA6 determines PMU chip type */
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if (GPIOA & (1<<6))
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{
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pmu = PCF50635;
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pcf50635_init();
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}
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else
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{
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pmu = PCF50606;
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/* Configure GPA6 for output (backlight enable) */
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GPIOA_DIR |= (1<<6);
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pcf50606_init();
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/* Clear pending interrupts */
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unsigned char data[3]; /* 0 = INT1, 1 = INT2, 2 = INT3 */
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pcf50606_read_multiple(0x02, data, 3);
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#ifndef BOOTLOADER
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IEN |= EXT3_IRQ_MASK; /* Unmask EXT3 */
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#endif
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}
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}
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void power_off(void)
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{
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/* Turn the backlight off first to avoid a bright stripe on power-off */
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_backlight_off();
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sleep(HZ/10);
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/* Power off the player using the same mechanism as the OF */
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GPIOA_CLEAR = (1<<7);
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while(true);
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}
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#ifndef BOOTLOADER
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void EXT3(void)
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{
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unsigned char data[3]; /* 0 = INT1, 1 = INT2, 2 = INT3 */
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/* Clear pending interrupts from pcf50606 */
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pcf50606_read_multiple(0x02, data, 3);
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if (data[0] & 0x04)
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{
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/* ONKEY1S */
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if (!charger_inserted())
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sys_poweroff();
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else
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pcf50606_reset_timeout();
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}
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if (data[2] & 0x08)
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{
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/* Touchscreen event, do something about it */
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touchscreen_handle_device_irq();
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}
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}
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#endif
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#if CONFIG_CHARGING
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unsigned int power_input_status(void)
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{
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return ((GPIOC & (1<<26)) == 0) ?
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POWER_INPUT_MAIN_CHARGER : POWER_INPUT_NONE;
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}
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#endif
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#if CONFIG_TUNER
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/** Tuner **/
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static bool powered = false;
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bool tuner_power(bool status)
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{
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bool old_status;
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lv24020lp_lock();
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old_status = powered;
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if (status != old_status)
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{
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if (status)
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{
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/* When power up, host should initialize the 3-wire bus
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in host read mode: */
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/* 1. Set direction of the DATA-line to input-mode. */
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GPIOC_DIR &= ~(1 << 30);
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/* 2. Drive NR_W low */
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GPIOC_CLEAR = (1 << 31);
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GPIOC_DIR |= (1 << 31);
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/* 3. Drive CLOCK high */
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GPIOC_SET = (1 << 29);
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GPIOC_DIR |= (1 << 29);
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lv24020lp_power(true);
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}
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else
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{
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lv24020lp_power(false);
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/* set all as inputs */
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GPIOC_DIR &= ~((1 << 29) | (1 << 30) | (1 << 31));
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}
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powered = status;
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}
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lv24020lp_unlock();
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return old_status;
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}
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#endif /* CONFIG_TUNER */
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