93 lines
2.4 KiB
C
93 lines
2.4 KiB
C
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/***************************************************************************
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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 "s5l8700.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 (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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