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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2021 Aidan MacDonald, Dana Conrad
*
* 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.
*
****************************************************************************/
// whole file copied from m3k
#include "power.h"
#include "adc.h"
#include "system.h"
#include "kernel.h"
#ifdef HAVE_USB_CHARGING_ENABLE
# include "usb_core.h"
#endif
#include "axp-pmu.h"
#include "axp-2101.h"
#include "i2c-x1000.h"
#include "devicedata.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, 3477, 3540, 3578, 3617, 3674, 3771, 3856, 3936, 4016, 4117 }
};
/* voltages (millivolt) of 0%, 10%, ... 100% when charging enabled */
const unsigned short percent_to_volt_charge[11] =
{
3400, 3477, 3540, 3578, 3617, 3674, 3771, 3856, 3936, 4016, 4117
};
void power_init(void)
{
/* Initialize driver */
i2c_x1000_set_freq(2, I2C_FREQ_400K);
int devicever;
#if defined(BOOTLOADER)
devicever = EROSQN_VER;
#else
devicever = device_data.lcd_version;
#endif
if (devicever >= 4){
uint8_t regread;
axp2101_init();
/* Enable required ADCs */
axp2101_adc_set_enabled(
(1 << AXP2101_ADC_VBAT_VOLTAGE) |
(1 << AXP2101_ADC_VBUS_VOLTAGE) |
(1 << AXP2101_ADC_VSYS_VOLTAGE) |
(1 << AXP2101_ADC_VBUS_VOLTAGE) |
(1 << AXP2101_ADC_TS_VOLTAGE) |
(1 << AXP2101_ADC_DIE_TEMPERATURE));
i2c_reg_modify1(AXP_PMU_BUS, AXP_PMU_ADDR,
AXP2101_REG_DCDC_ONOFF, 0, 0x1f, NULL);
i2c_reg_modify1(AXP_PMU_BUS, AXP_PMU_ADDR,
AXP2101_REG_LDO_ONOFF0, 0, 0xff, NULL);
i2c_reg_modify1(AXP_PMU_BUS, AXP_PMU_ADDR,
AXP2101_REG_LDO_ONOFF1, 0, 0x01, NULL);
// set power button delay to 1s to match earlier devices
regread = i2c_reg_read1(AXP_PMU_BUS, AXP_PMU_ADDR,
AXP2101_REG_LOGICTHRESH);
if ((regread&0x03) != 0x02){
i2c_reg_modify1(AXP_PMU_BUS, AXP_PMU_ADDR,
AXP2101_REG_LOGICTHRESH, 0x03, 0, NULL);
i2c_reg_modify1(AXP_PMU_BUS, AXP_PMU_ADDR,
AXP2101_REG_LOGICTHRESH, 0, 0x02, NULL);
}
// These match the OF as far as I can discern
// TODO: These values are set in EFUSE apparently, could
// do a "check then set if necessary"...
// Also if we had a fresh device we could verify what
// the OF sets.
axp2101_supply_set_voltage(AXP2101_SUPPLY_DCDC1, 3300);
axp2101_supply_set_voltage(AXP2101_SUPPLY_DCDC2, 1200);
axp2101_supply_set_voltage(AXP2101_SUPPLY_DCDC3, 2800);
axp2101_supply_set_voltage(AXP2101_SUPPLY_DCDC4, 1800);
axp2101_supply_set_voltage(AXP2101_SUPPLY_DCDC5, 1400);
axp2101_supply_set_voltage(AXP2101_SUPPLY_ALDO1, 2500);
axp2101_supply_set_voltage(AXP2101_SUPPLY_ALDO2, 3300);
axp2101_supply_set_voltage(AXP2101_SUPPLY_ALDO3, 3300);
axp2101_supply_set_voltage(AXP2101_SUPPLY_ALDO4, 3300);
axp2101_supply_set_voltage(AXP2101_SUPPLY_BLDO1, 3300);
axp2101_supply_set_voltage(AXP2101_SUPPLY_BLDO2, 3300);
axp2101_supply_set_voltage(AXP2101_SUPPLY_DLDO1, 2500);
axp2101_supply_set_voltage(AXP2101_SUPPLY_DLDO2, 1250);
axp2101_supply_set_voltage(AXP2101_SUPPLY_VCPUS, 500);
/* Set the default charging current. This is the same as the
* OF's setting, although it's not strictly within the USB spec. */
axp2101_set_charge_current(780);
} else {
axp_init();
/* Set lowest sample rate */
axp_adc_set_rate(AXP_ADC_RATE_25HZ);
/* Enable required ADCs */
axp_adc_set_enabled(
(1 << ADC_BATTERY_VOLTAGE) |
(1 << ADC_CHARGE_CURRENT) |
(1 << ADC_DISCHARGE_CURRENT) |
(1 << ADC_VBUS_VOLTAGE) |
(1 << ADC_VBUS_CURRENT) |
(1 << ADC_INTERNAL_TEMP) |
(1 << ADC_APS_VOLTAGE));
/* TODO: Set Output Voltages! */
i2c_reg_modify1(AXP_PMU_BUS, AXP_PMU_ADDR,
AXP_REG_PWROUTPUTCTRL2, 0, 0x5f, NULL);
i2c_reg_modify1(AXP_PMU_BUS, AXP_PMU_ADDR,
AXP_REG_DCDCWORKINGMODE, 0, 0xc0, NULL);
/* Set the default charging current. This is the same as the
* OF's setting, although it's not strictly within the USB spec. */
axp_set_charge_current(780);
}
#ifdef BOOTLOADER
/* Delay to give power outputs time to stabilize.
* With the power thread delay, this can apparently go as low as 50,
* Keeping a higher value here just to ensure the bootloader works
* correctly. */
mdelay(200);
#endif
}
#ifdef HAVE_USB_CHARGING_ENABLE
void usb_charging_maxcurrent_change(int maxcurrent)
{
int devicever;
#if defined(BOOTLOADER)
devicever = EROSQN_VER;
#else
devicever = device_data.lcd_version;
#endif
if (devicever >= 4){
axp2101_set_charge_current(maxcurrent);
} else {
axp_set_charge_current(maxcurrent);
}
}
#endif
void adc_init(void)
{
}
void power_off(void)
{
int devicever;
#if defined(BOOTLOADER)
devicever = EROSQN_VER;
#else
devicever = device_data.lcd_version;
#endif
if (devicever >= 4){
axp2101_power_off();
} else {
axp_power_off();
}
while(1);
}
bool charging_state(void)
{
int devicever;
#if defined(BOOTLOADER)
devicever = EROSQN_VER;
#else
devicever = device_data.lcd_version;
#endif
if (devicever >= 4){
return axp2101_battery_status() == AXP2101_BATT_CHARGING;
} else {
return axp_battery_status() == AXP_BATT_CHARGING;
}
}
int _battery_voltage(void)
{
int devicever;
#if defined(BOOTLOADER)
devicever = EROSQN_VER;
#else
devicever = device_data.lcd_version;
#endif
if (devicever >= 4){
return axp2101_adc_read(AXP2101_ADC_VBAT_VOLTAGE);
} else {
return axp_adc_read(ADC_BATTERY_VOLTAGE);
}
}
#if CONFIG_BATTERY_MEASURE & CURRENT_MEASURE
int _battery_current(void)
{
int devicever;
#if defined(BOOTLOADER)
devicever = EROSQN_VER;
#else
devicever = device_data.lcd_version;
#endif
if (devicever <= 3){
if(charging_state())
return axp_adc_read(ADC_CHARGE_CURRENT);
else
return axp_adc_read(ADC_DISCHARGE_CURRENT);
}
}
#endif
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