97 lines
2.7 KiB
C
97 lines
2.7 KiB
C
/***************************************************************************
|
|
* __________ __ ___.
|
|
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
|
|
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
|
|
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
|
|
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
|
|
* \/ \/ \/ \/ \/
|
|
* $Id$
|
|
*
|
|
* Copyright (C) 2021 Aidan MacDonald
|
|
*
|
|
* 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 "power.h"
|
|
#include "adc.h"
|
|
#include "system.h"
|
|
#include "kernel.h"
|
|
#include "axp173.h"
|
|
#include "i2c-x1000.h"
|
|
#include "gpio-x1000.h"
|
|
|
|
const unsigned short battery_level_dangerous[BATTERY_TYPES_COUNT] =
|
|
{
|
|
3470
|
|
};
|
|
|
|
/* the OF shuts down at this voltage */
|
|
const unsigned short battery_level_shutoff[BATTERY_TYPES_COUNT] =
|
|
{
|
|
3400
|
|
};
|
|
|
|
/* voltages (millivolt) of 0%, 10%, ... 100% when charging disabled */
|
|
const unsigned short percent_to_volt_discharge[BATTERY_TYPES_COUNT][11] =
|
|
{
|
|
{ 3400, 3639, 3697, 3723, 3757, 3786, 3836, 3906, 3980, 4050, 4159 }
|
|
};
|
|
|
|
/* voltages (millivolt) of 0%, 10%, ... 100% when charging enabled */
|
|
const unsigned short percent_to_volt_charge[11] =
|
|
{
|
|
3485, 3780, 3836, 3857, 3890, 3930, 3986, 4062, 4158, 4185, 4196
|
|
};
|
|
|
|
#define AXP173_IRQ_PORT GPIO_B
|
|
#define AXP173_IRQ_PIN (1 << 10)
|
|
|
|
void power_init(void)
|
|
{
|
|
/* Initialize driver */
|
|
i2c_x1000_set_freq(2, I2C_FREQ_400K);
|
|
axp173_init();
|
|
|
|
/* Set lowest sample rate */
|
|
axp173_adc_set_rate(AXP173_ADC_RATE_25HZ);
|
|
|
|
/* Ensure battery voltage ADC is enabled */
|
|
int bits = axp173_adc_get_enabled();
|
|
bits |= (1 << ADC_BATTERY_VOLTAGE);
|
|
axp173_adc_set_enabled(bits);
|
|
|
|
/* Turn on all power outputs */
|
|
i2c_reg_modify1(AXP173_BUS, AXP173_ADDR, 0x12, 0, 0x5f, NULL);
|
|
i2c_reg_modify1(AXP173_BUS, AXP173_ADDR, 0x80, 0, 0xc0, NULL);
|
|
|
|
/* Short delay to give power outputs time to stabilize */
|
|
mdelay(5);
|
|
}
|
|
|
|
void adc_init(void)
|
|
{
|
|
}
|
|
|
|
void power_off(void)
|
|
{
|
|
/* Set the shutdown bit */
|
|
i2c_reg_setbit1(AXP173_BUS, AXP173_ADDR, 0x32, 7, 1, NULL);
|
|
while(1);
|
|
}
|
|
|
|
bool charging_state(void)
|
|
{
|
|
return axp173_battery_status() == AXP173_BATT_CHARGING;
|
|
}
|
|
|
|
int _battery_voltage(void)
|
|
{
|
|
return axp173_adc_read(ADC_BATTERY_VOLTAGE);
|
|
}
|