mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
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115 lines
3.8 KiB
C++
115 lines
3.8 KiB
C++
/*
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* Copyright (c) 2018-2019 Atmosphère-NX
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "boot_i2c_utils.hpp"
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#include "boot_pmic_driver.hpp"
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namespace ams::boot {
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void PmicDriver::ShutdownSystem() {
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R_ASSERT(this->ShutdownSystem(false));
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}
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void PmicDriver::RebootSystem() {
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R_ASSERT(this->ShutdownSystem(true));
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}
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Result PmicDriver::GetAcOk(bool *out) {
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u8 power_status;
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R_TRY(this->GetPowerStatus(&power_status));
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*out = (power_status & 0x02) != 0;
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return ResultSuccess();
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}
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Result PmicDriver::GetPowerIntr(u8 *out) {
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const u8 addr = 0x0B;
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return ReadI2cRegister(this->i2c_session, out, sizeof(*out), &addr, sizeof(addr));
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}
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Result PmicDriver::GetPowerStatus(u8 *out) {
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const u8 addr = 0x15;
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return ReadI2cRegister(this->i2c_session, out, sizeof(*out), &addr, sizeof(addr));
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}
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Result PmicDriver::GetNvErc(u8 *out) {
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const u8 addr = 0x0C;
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return ReadI2cRegister(this->i2c_session, out, sizeof(*out), &addr, sizeof(addr));
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}
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Result PmicDriver::GetPowerButtonPressed(bool *out) {
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u8 power_intr;
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R_TRY(this->GetPowerIntr(&power_intr));
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*out = (power_intr & 0x08) != 0;
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return ResultSuccess();
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}
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Result PmicDriver::ShutdownSystem(bool reboot) {
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const u8 on_off_1_addr = 0x41;
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const u8 on_off_2_addr = 0x42;
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/* Get value, set or clear software reset mask. */
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u8 on_off_2_val = 0;
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R_ASSERT(ReadI2cRegister(this->i2c_session, &on_off_2_val, sizeof(on_off_2_val), &on_off_2_addr, sizeof(on_off_2_addr)));
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if (reboot) {
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on_off_2_val |= 0x80;
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} else {
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on_off_2_val &= ~0x80;
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}
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R_ASSERT(WriteI2cRegister(this->i2c_session, &on_off_2_val, sizeof(on_off_2_val), &on_off_2_addr, sizeof(on_off_2_addr)));
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/* Get value, set software reset mask. */
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u8 on_off_1_val = 0;
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R_ASSERT(ReadI2cRegister(this->i2c_session, &on_off_1_val, sizeof(on_off_1_val), &on_off_1_addr, sizeof(on_off_1_addr)));
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on_off_1_val |= 0x80;
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/* Finalize the battery. */
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{
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BatteryDriver battery_driver;
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this->FinalizeBattery(&battery_driver);
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}
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/* Actually write the value to trigger shutdown/reset. */
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R_ASSERT(WriteI2cRegister(this->i2c_session, &on_off_1_val, sizeof(on_off_1_val), &on_off_1_addr, sizeof(on_off_1_addr)));
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/* Allow up to 5 seconds for shutdown/reboot to take place. */
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svcSleepThread(5'000'000'000ul);
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AMS_ASSERT(false);
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}
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void PmicDriver::FinalizeBattery(BatteryDriver *battery_driver) {
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/* Set shutdown timer. */
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battery_driver->SetShutdownTimer();
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/* Get whether shutdown is enabled. */
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bool shutdown_enabled;
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if (R_FAILED(battery_driver->GetShutdownEnabled(&shutdown_enabled))) {
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return;
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}
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bool ac_ok;
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bool desired_shutdown_enabled;
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if (R_FAILED(this->GetAcOk(&ac_ok)) || ac_ok) {
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desired_shutdown_enabled = false;
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} else {
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desired_shutdown_enabled = true;
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}
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if (shutdown_enabled != desired_shutdown_enabled) {
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battery_driver->SetShutdownEnabled(desired_shutdown_enabled);
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}
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}
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}
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