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Meizu: implement power driver (USB power detect / charging status / poweroff)

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21805 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Bertrik Sikken 2009-07-12 14:32:38 +00:00
parent f9e7a5ad39
commit 59b9e3ab3f
2 changed files with 94 additions and 2 deletions
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92
firmware/target/arm/s5l8700/power-meizu.c Normal file
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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright © 2009 Bertrik Sikken
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include <stdbool.h>
#include "config.h"
#include "inttypes.h"
#include "s5l8700.h"
#include "power.h"
/* Power handling for S5L8700 based Meizu players
The M3 and M6 players appear to use the same pins for power, USB detection
and charging status.
*/
void power_off(void)
{
/* take down PWRON_M (P1.3) */
PDAT1 &= ~(1 << 3);
}
void power_init(void)
{
/* configure PWRON_M (P1.3) as output and set it to keep power turned on */
PCON1 = (PCON1 & ~(0xF << 12)) | (0x1 << 12);
PDAT1 |= (1 << 3);
/* configure PBSTAT (P1.4) as input */
PCON1 &= ~(0xF << 16);
/* configure CHRG (P5.7) as input to monitor charging state */
PCON5 &= ~(0xF << 28);
/* enable USB2.0 function controller to allow VBUS monitoring */
PWRCON &= ~(1 << 15);
}
#if CONFIG_CHARGING
unsigned int power_input_status(void)
{
/* check VBUS in the USB2.0 function controller */
if (TR & (1 << 15)) {
return POWER_INPUT_USB;
}
return POWER_INPUT_NONE;
}
bool charging_state(void)
{
/* CHRG pin goes low when charging */
return ((PDAT5 & (1 << 7)) == 0);
}
#endif /* CONFIG_CHARGING */
#if CONFIG_TUNER
static bool tuner_on = false;
bool tuner_power(bool status)
{
if (status != tuner_on)
{
tuner_on = status;
status = !status;
}
return status;
}
bool tuner_powered(void)
{
return tuner_on; /* No debug info */
}
#endif /* CONFIG_TUNER */