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Atmosphere/stratosphere/boot/source/boot_check_battery.cpp
2019-06-22 00:10:21 -07:00

289 lines
12 KiB
C++

/*
* Copyright (c) 2018-2019 Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "boot_battery_driver.hpp"
#include "boot_battery_icons.hpp"
#include "boot_boot_reason.hpp"
#include "boot_calibration.hpp"
#include "boot_charger_driver.hpp"
#include "boot_check_battery.hpp"
#include "boot_pmic_driver.hpp"
#include "boot_power_utils.hpp"
namespace sts::boot {
namespace {
/* Types. */
enum class CheckBatteryResult {
Success,
Shutdown,
Reboot,
};
struct BatteryChargeParameters {
u32 temp_min;
u32 temp_low;
u32 temp_high;
u32 temp_max;
u32 allow_high_temp_charge_max_voltage;
u32 charge_voltage_limit_default;
u32 charge_voltage_limit_high_temp;
u32 allow_fast_charge_min_temp;
u32 allow_fast_charge_min_voltage;
u32 fast_charge_current_limit_default;
u32 fast_charge_current_limit_low_temp;
u32 fast_charge_current_limit_low_voltage;
};
/* Battery parameters. */
constexpr BatteryChargeParameters BatteryChargeParameters0 = {
.temp_min = 4,
.temp_low = 17,
.temp_high = 51,
.temp_max = 60,
.allow_high_temp_charge_max_voltage = 4050,
.charge_voltage_limit_default = 4208,
.charge_voltage_limit_high_temp = 3952,
.allow_fast_charge_min_voltage = 3320,
.fast_charge_current_limit_default = 0x800,
.fast_charge_current_limit_low_temp = 0x300,
.fast_charge_current_limit_low_voltage = 0x200,
};
constexpr BatteryChargeParameters BatteryChargeParameters1 = {
.temp_min = 4,
.temp_low = 17,
.temp_high = 51,
.temp_max = 59,
.allow_high_temp_charge_max_voltage = 3984,
.charge_voltage_limit_default = 4208,
.charge_voltage_limit_high_temp = 3984,
.allow_fast_charge_min_voltage = 0,
.fast_charge_current_limit_default = 0x600,
.fast_charge_current_limit_low_temp = 0x240,
.fast_charge_current_limit_low_voltage = 0x600,
};
constexpr BatteryChargeParameters BatteryChargeParameters2 = {
.temp_min = 4,
.temp_low = 17,
.temp_high = 51,
.temp_max = 59,
.allow_high_temp_charge_max_voltage = 4080,
.charge_voltage_limit_default = 4320,
.charge_voltage_limit_high_temp = 4080,
.allow_fast_charge_min_voltage = 0,
.fast_charge_current_limit_default = 0x680,
.fast_charge_current_limit_low_temp = 0x280,
.fast_charge_current_limit_low_voltage = 0x680,
};
constexpr const BatteryChargeParameters *GetBatteryChargeParameters(u32 battery_version) {
switch (battery_version) {
case 0:
return &BatteryChargeParameters0;
case 1:
return &BatteryChargeParameters1;
case 2:
return &BatteryChargeParameters2;
default:
std::abort();
}
}
/* Helpers. */
void UpdateCharger(PmicDriver *pmic_driver, ChargerDriver *charger_driver, BatteryDriver *battery_driver, const BatteryChargeParameters *params, u32 charge_voltage_limit) {
double temperature;
u32 battery_voltage;
if (R_FAILED(battery_driver->GetTemperature(&temperature)) || R_FAILED(battery_driver->GetAverageVCell(&battery_voltage))) {
pmic_driver->ShutdownSystem();
}
bool enable_charge = true;
if (temperature < double(params->temp_min)) {
enable_charge = false;
} else if (double(params->temp_high) <= temperature && temperature < double(params->temp_max)) {
if (battery_voltage < params->allow_high_temp_charge_max_voltage) {
charge_voltage_limit = std::min(charge_voltage_limit, params->charge_voltage_limit_high_temp);
} else {
enable_charge = false;
}
} else if (double(params->temp_max) <= temperature) {
enable_charge = false;
if (battery_voltage < params->allow_high_temp_charge_max_voltage) {
charge_voltage_limit = std::min(charge_voltage_limit, params->charge_voltage_limit_high_temp);
}
}
u32 fast_charge_current_limit = params->fast_charge_current_limit_default;
if (temperature < double(params->temp_low)) {
fast_charge_current_limit = std::min(fast_charge_current_limit, params->fast_charge_current_limit_low_temp);
}
if (battery_voltage < params->allow_fast_charge_min_voltage) {
fast_charge_current_limit = std::min(fast_charge_current_limit, params->fast_charge_current_limit_low_voltage);
}
if (R_FAILED(charger_driver->SetChargeEnabled(enable_charge))) {
pmic_driver->ShutdownSystem();
}
if (R_FAILED(charger_driver->SetChargeVoltageLimit(charge_voltage_limit))) {
pmic_driver->ShutdownSystem();
}
if (R_FAILED(charger_driver->SetFastChargeCurrentLimit(fast_charge_current_limit))) {
pmic_driver->ShutdownSystem();
}
}
bool IsSufficientBattery(u32 battery_voltage, bool ac_ok) {
/* Nintendo has stuff for updating a static variable every 10 seconds here, but this seems, again, to be debug leftovers. */
const u32 required_voltage = ac_ok ? 4000 : 3650;
return battery_voltage >= required_voltage;
}
CheckBatteryResult LoopCheckBattery(PmicDriver *pmic_driver, ChargerDriver *charger_driver, BatteryDriver *battery_driver, const BatteryChargeParameters *params, u32 charge_voltage_limit, bool reboot_on_power_button_pressed, bool succeed_on_sufficient_battery, bool shutdown_on_full_battery, bool can_show_battery_icon, bool can_show_charging_icon) {
bool is_showing_charging_icon = false;
ON_SCOPE_EXIT {
if (is_showing_charging_icon) {
EndShowChargingIcon();
}
};
if (can_show_charging_icon) {
size_t battery_percentage;
if (R_FAILED(battery_driver->GetBatteryPercentage(&battery_percentage))) {
return CheckBatteryResult::Shutdown;
}
StartShowChargingIcon(battery_percentage, true);
is_showing_charging_icon = true;
}
while (true) {
double battery_charge;
if (R_FAILED(battery_driver->GetSocRep(&battery_charge))) {
return CheckBatteryResult::Shutdown;
}
if (succeed_on_sufficient_battery && battery_charge >= 3.0) {
return CheckBatteryResult::Success;
} else if (shutdown_on_full_battery && battery_charge >= 99.0) {
return CheckBatteryResult::Shutdown;
} else {
/* Nintendo has logic for checking a value every 10 seconds. */
/* They never do anything with this value though, so it's probably just leftovers from debug? */
}
bool ac_ok;
if (R_FAILED(pmic_driver->GetAcOk(&ac_ok))) {
return CheckBatteryResult::Shutdown;
}
u32 battery_voltage;
if (R_FAILED(battery_driver->GetAverageVCell(&battery_voltage))) {
return CheckBatteryResult::Shutdown;
}
if (succeed_on_sufficient_battery && IsSufficientBattery(battery_voltage, ac_ok)) {
return CheckBatteryResult::Success;
}
if (!ac_ok) {
if (can_show_battery_icon && !is_showing_charging_icon) {
ShowLowBatteryIcon();
}
return CheckBatteryResult::Shutdown;
}
if (reboot_on_power_button_pressed) {
bool power_button_pressed;
if (R_FAILED(pmic_driver->GetPowerButtonPressed(&power_button_pressed))) {
return CheckBatteryResult::Shutdown;
}
if (power_button_pressed) {
return CheckBatteryResult::Reboot;
}
}
if (can_show_battery_icon && !is_showing_charging_icon) {
StartShowChargingIcon(1, false);
is_showing_charging_icon = true;
}
svcSleepThread(20'000'000ul);
UpdateCharger(pmic_driver, charger_driver, battery_driver, params, charge_voltage_limit);
}
}
}
void CheckBatteryCharge() {
PmicDriver pmic_driver;
BatteryDriver battery_driver;
ChargerDriver charger_driver;
if (R_FAILED(battery_driver.InitializeBatteryParameters())) {
pmic_driver.ShutdownSystem();
}
{
bool removed;
if (R_FAILED(battery_driver.IsBatteryRemoved(&removed)) || removed) {
pmic_driver.ShutdownSystem();
}
}
const u32 boot_reason = GetBootReason();
bq24193::InputCurrentLimit input_current_limit;
if (R_FAILED(charger_driver.Initialize(boot_reason != 4)) || R_FAILED(charger_driver.GetInputCurrentLimit(&input_current_limit))) {
pmic_driver.ShutdownSystem();
}
if (input_current_limit <= bq24193::InputCurrentLimit_150mA) {
charger_driver.SetChargerConfiguration(bq24193::ChargerConfiguration_ChargeDisable);
pmic_driver.ShutdownSystem();
}
const BatteryChargeParameters *params = GetBatteryChargeParameters(GetBatteryVersion());
u32 charge_voltage_limit = params->charge_voltage_limit_default;
CheckBatteryResult check_result;
if (boot_reason == 4) {
if (R_FAILED(charger_driver.GetChargeVoltageLimit(&charge_voltage_limit))) {
pmic_driver.ShutdownSystem();
}
UpdateCharger(&pmic_driver, &charger_driver, &battery_driver, params, charge_voltage_limit);
check_result = LoopCheckBattery(&pmic_driver, &charger_driver, &battery_driver, params, charge_voltage_limit, true, false, true, false, false);
} else {
UpdateCharger(&pmic_driver, &charger_driver, &battery_driver, params, charge_voltage_limit);
if (boot_reason == 1) {
check_result = LoopCheckBattery(&pmic_driver, &charger_driver, &battery_driver, params, charge_voltage_limit, true, true, false, true, true);
} else {
check_result = LoopCheckBattery(&pmic_driver, &charger_driver, &battery_driver, params, charge_voltage_limit, false, true, false, true, false);
}
}
switch (check_result) {
case CheckBatteryResult::Success:
break;
case CheckBatteryResult::Shutdown:
pmic_driver.ShutdownSystem();
break;
case CheckBatteryResult::Reboot:
RebootSystem();
break;
default:
std::abort();
}
}
}