58eb784a5d
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19315 a1c6a512-1295-4272-9138-f99709370657
133 lines
3.2 KiB
C
133 lines
3.2 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) 2006 by Daniel Ankers
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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 <stdbool.h>
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#include "system.h"
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#include "cpu.h"
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#include "i2c-pp.h"
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#include "tuner.h"
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#include "ascodec.h"
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#include "as3514.h"
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#include "power.h"
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void power_init(void)
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{
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}
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void power_off(void)
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{
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char byte;
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/* Send shutdown command to PMU */
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byte = ascodec_read(AS3514_SYSTEM);
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byte &= ~0x1;
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ascodec_write(AS3514_SYSTEM, byte);
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/* Stop interrupts on both cores */
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disable_interrupt(IRQ_FIQ_STATUS);
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COP_INT_DIS = -1;
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CPU_INT_DIS = -1;
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/* Halt everything and wait for device to power off */
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while (1)
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{
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COP_CTL = 0x40000000;
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CPU_CTL = 0x40000000;
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}
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}
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unsigned int power_input_status(void)
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{
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return POWER_INPUT_NONE;
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}
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void ide_power_enable(bool on)
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{
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(void)on;
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}
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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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/* init mystery amplification device */
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#if defined(SANSA_E200)
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GPO32_ENABLE |= 0x1;
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#else /* SANSA_C200 */
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DEV_INIT2 &= ~0x800;
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#endif
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udelay(5);
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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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GPIOH_OUTPUT_EN &= ~(1 << 5);
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GPIOH_ENABLE |= (1 << 5);
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/* 2. Drive NR_W low */
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GPIOH_OUTPUT_VAL &= ~(1 << 3);
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GPIOH_OUTPUT_EN |= (1 << 3);
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GPIOH_ENABLE |= (1 << 3);
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/* 3. Drive CLOCK high */
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GPIOH_OUTPUT_VAL |= (1 << 4);
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GPIOH_OUTPUT_EN |= (1 << 4);
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GPIOH_ENABLE |= (1 << 4);
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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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GPIOH_OUTPUT_EN &= ~((1 << 5) | (1 << 3) | (1 << 4));
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GPIOH_ENABLE &= ~((1 << 3) | (1 << 4));
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/* turn off mystery amplification device */
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#if defined (SANSA_E200)
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GPO32_ENABLE &= ~0x1;
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#else
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DEV_INIT2 |= 0x800;
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#endif
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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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