ddd594b03e
This should prevent buffer underruns that can occur during heavy use of buttons or scrollwheel. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@31267 a1c6a512-1295-4272-9138-f99709370657
94 lines
2.3 KiB
C
94 lines
2.3 KiB
C
/***************************************************************************
|
|
* __________ __ ___.
|
|
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
|
|
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
|
|
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
|
|
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
|
|
* \/ \/ \/ \/ \/
|
|
* $Id: $
|
|
*
|
|
* Copyright (C) 2011 by Tomasz Moń
|
|
*
|
|
* 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 "config.h"
|
|
#include "cpu.h"
|
|
#include <stdbool.h>
|
|
#include "kernel.h"
|
|
#include "system.h"
|
|
#include "power.h"
|
|
#include "backlight.h"
|
|
#include "backlight-target.h"
|
|
#include "avr-sansaconnect.h"
|
|
#include "i2c-dm320.h"
|
|
#include "logf.h"
|
|
|
|
/* (7-bit) address is 0x48, the LSB is read/write flag */
|
|
#define TPS65021_ADDR (0x48 << 1)
|
|
|
|
static void tps65021_write_reg(unsigned reg, unsigned value)
|
|
{
|
|
unsigned char data[2];
|
|
|
|
data[0] = reg;
|
|
data[1] = value;
|
|
|
|
if (i2c_write(TPS65021_ADDR, data, 2) != 0)
|
|
{
|
|
logf("TPS65021 error reg=0x%x", reg);
|
|
}
|
|
}
|
|
|
|
void power_init(void)
|
|
{
|
|
/* Enable LDO */
|
|
tps65021_write_reg(0x03, 0xFD);
|
|
|
|
/* PWM mode */
|
|
tps65021_write_reg(0x04, 0xB2);
|
|
|
|
/* Set core voltage to 1.5V */
|
|
tps65021_write_reg(0x06, 0x1C);
|
|
|
|
/* Set LCM (LDO1) to 2.85V, Set CODEC and USB (LDO2) to 1.8V */
|
|
tps65021_write_reg(0x08, 0x36);
|
|
|
|
/* Enable internal charger */
|
|
avr_hid_enable_charger();
|
|
}
|
|
|
|
void power_off(void)
|
|
{
|
|
/* Disable GIO0 and GIO2 interrupts */
|
|
IO_INTC_EINT1 &= ~(INTR_EINT1_EXT2 | INTR_EINT1_EXT0);
|
|
|
|
avr_hid_reset_codec();
|
|
avr_hid_power_off();
|
|
}
|
|
|
|
#if CONFIG_CHARGING
|
|
unsigned int power_input_status(void)
|
|
{
|
|
return POWER_INPUT_NONE;
|
|
}
|
|
|
|
/* Returns true if the unit is charging the batteries. */
|
|
bool charging_state(void)
|
|
{
|
|
return false;
|
|
}
|
|
#endif
|
|
|
|
void ide_power_enable(bool on)
|
|
{
|
|
(void)on;
|
|
}
|
|
|