mirror of
https://github.com/Fennix-Project/Kernel.git
synced 2025-05-25 22:14:37 +00:00
131 lines
2.7 KiB
C++
131 lines
2.7 KiB
C++
/*
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This file is part of Fennix Kernel.
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Fennix Kernel is free software: you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation, either version 3 of
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the License, or (at your option) any later version.
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Fennix Kernel is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Fennix Kernel. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include <power.hpp>
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#include <memory.hpp>
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#include <debug.h>
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#include "../kernel.h"
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#if defined(a64)
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#include <io.h>
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#include "../Architecture/amd64/acpi.hpp"
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namespace Power
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{
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void Power::Reboot()
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{
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if (((ACPI::ACPI *)this->acpi)->FADT)
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if (((ACPI::DSDT *)this->dsdt)->ACPIShutdownSupported)
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((ACPI::DSDT *)this->dsdt)->Reboot();
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uint8_t val = 0x02;
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while (val & 0x02)
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val = inb(0x64);
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outb(0x64, 0xFE);
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warn("Executing the second attempt to reboot...");
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// https://wiki.osdev.org/Reboot
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/* Second attempt to reboot */
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asmv("cli");
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uint8_t temp;
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do
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{
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temp = inb(0x64);
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if (((temp) & (1 << (0))) != 0)
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inb(0x60);
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} while (((temp) & (1 << (1))) != 0);
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outb(0x64, 0xFE);
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CPU::Stop();
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}
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void Power::Shutdown()
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{
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if (((ACPI::ACPI *)this->acpi)->FADT)
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if (((ACPI::DSDT *)this->dsdt)->ACPIShutdownSupported)
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((ACPI::DSDT *)this->dsdt)->Shutdown();
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/* TODO: If no ACPI, display "It is now safe to turn off your computer" */
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/* FIXME: Detect emulators and use their shutdown methods */
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#ifdef DEBUG
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outl(0xB004, 0x2000); // for qemu
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outl(0x604, 0x2000); // if qemu not working, bochs and older versions of qemu
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outl(0x4004, 0x3400); // virtual box
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#endif
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CPU::Stop();
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}
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void Power::InitDSDT()
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{
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if (((ACPI::ACPI *)this->acpi)->FADT)
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this->dsdt = new ACPI::DSDT((ACPI::ACPI *)acpi);
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}
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Power::Power()
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{
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this->acpi = new ACPI::ACPI;
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this->madt = new ACPI::MADT(((ACPI::ACPI *)acpi)->MADT);
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trace("Power manager initialized");
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}
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}
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#elif defined(a32)
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namespace Power
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{
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void Power::Reboot()
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{
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warn("Reboot not implemented for i386");
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}
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void Power::Shutdown()
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{
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warn("Shutdown not implemented for i386");
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}
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Power::Power()
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{
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error("Power not implemented for i386");
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}
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}
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#elif defined(aa64)
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namespace Power
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{
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void Power::Reboot()
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{
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warn("Reboot not implemented for aarch64");
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}
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void Power::Shutdown()
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{
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warn("Shutdown not implemented for aarch64");
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}
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Power::Power()
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{
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error("Power not implemented for aarch64");
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}
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}
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#endif
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