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9e2c85e076
This is part of the preparation to add support for iPod Nano 3G and Nano 4G. There are some optimisations left, like merging similar blocks of registers that share the same layout, but the base address have changed between SoC generations. Change-Id: I4f06727b4061977141b65d39ae19591bd5b29680
92 lines
2.4 KiB
C
92 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 © 2009 Bertrik Sikken
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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 "config.h"
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#include "inttypes.h"
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#include "s5l87xx.h"
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#include "power.h"
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/* Power handling for S5L8700 based Meizu players
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The M3 and M6 players appear to use the same pins for power, USB detection
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and charging status.
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*/
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void power_off(void)
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{
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/* take down PWRON_M (P1.3) */
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PDAT1 &= ~(1 << 3);
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}
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void power_init(void)
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{
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/* configure PWRON_M (P1.3) as output and set it to keep power turned on */
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PCON1 = (PCON1 & ~(0xF << 12)) | (0x1 << 12);
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PDAT1 |= (1 << 3);
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/* configure PBSTAT (P1.4) as input */
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PCON1 &= ~(0xF << 16);
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/* configure CHRG (P5.7) as input to monitor charging state */
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PCON5 &= ~(0xF << 28);
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/* enable USB2.0 function controller to allow VBUS monitoring */
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PWRCON &= ~(1 << 15);
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}
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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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/* check VBUS in the USB2.0 function controller */
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if (USB_TR & (1 << 15)) {
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return POWER_INPUT_USB;
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}
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return POWER_INPUT_NONE;
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}
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bool charging_state(void)
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{
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/* CHRG pin goes low when charging */
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return ((PDAT5 & (1 << 7)) == 0);
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}
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#endif /* CONFIG_CHARGING */
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#if CONFIG_TUNER
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static bool tuner_on = false;
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bool tuner_power(bool status)
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{
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if (status != tuner_on)
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{
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tuner_on = status;
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status = !status;
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}
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return status;
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}
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bool tuner_powered(void)
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{
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return tuner_on; /* No debug info */
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}
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#endif /* CONFIG_TUNER */
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