a9c20f5789
1) Rework event handling and static registration mechanism. No target-
specific code in mc13783 driver. GPIO event driver interfaces more
cleanly.
2) Somewhat related - enable thread priority for bootloader which is
desireable here (ffs is used for GPIO event enabling anyway and that
goes along with priority).
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17593 a1c6a512-1295-4272-9138-f99709370657
112 lines
2.4 KiB
C
112 lines
2.4 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 Linus Nielsen Feltzing
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*
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* All files in this archive are subject to the GNU General Public License.
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* See the file COPYING in the source tree root for full license agreement.
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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 "system.h"
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#include "power.h"
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#include "backlight.h"
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#include "backlight-target.h"
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#include "avic-imx31.h"
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#include "mc13783.h"
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#ifndef SIMULATOR
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static bool charger_detect = false;
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/* This is called from the mc13783 interrupt thread */
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void charger_detect_event(void)
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{
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charger_detect =
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mc13783_read(MC13783_INTERRUPT_SENSE0) & MC13783_CHGDETS;
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}
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bool charger_inserted(void)
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{
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return charger_detect;
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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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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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{
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/* Bus must be isolated before power off */
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imx31_regmod32(&GPIO2_DR, (1 << 16), (1 << 16));
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}
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/* HD power switch */
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imx31_regmod32(&GPIO3_DR, on ? (1 << 5) : 0, (1 << 5));
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if (on)
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{
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/* Bus switch may be turned on after powerup */
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sleep(HZ/10);
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imx31_regmod32(&GPIO2_DR, 0, (1 << 16));
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}
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}
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bool ide_powered(void)
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{
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return (GPIO3_DR & (1 << 5)) != 0;
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}
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void power_off(void)
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{
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mc13783_set(MC13783_POWER_CONTROL0, MC13783_USEROFFSPI);
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disable_interrupt(IRQ_FIQ_STATUS);
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while (1);
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}
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void power_init(void)
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{
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/* Poll initial state */
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charger_detect_event();
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/* Enable detect event */
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mc13783_enable_event(MC13783_CHGDET_EVENT);
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}
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#else /* SIMULATOR */
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bool charger_inserted(void)
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{
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return false;
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}
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void charger_enable(bool on)
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{
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(void)on;
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}
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void power_off(void)
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{
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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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#endif /* SIMULATOR */
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