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105 lines
2.1 KiB
C++
105 lines
2.1 KiB
C++
#include "acpi.hpp"
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#include "ata.hpp"
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#include "gdt.hpp"
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#include "idt.hpp"
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#include "keyboard.hpp"
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#include "memory.hpp"
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#include "multiboot.hpp"
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#include "pic.hpp"
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#include "pit.hpp"
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#include "portio.hpp"
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#include "tasking.hpp"
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#include "vgaterminal.hpp"
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static VGATerminal vga;
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TextOutput& term = vga;
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static volatile bool termBusy = false;
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void ata_probe(auto bus, ATA::Drive drv, const char *name)
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{
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switch (bus.identify(drv)) {
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case ATA::Type::ATA:
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term.write("ata:");
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term.write(name);
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term.write(": ATA drive detected.\n");
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break;
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case ATA::Type::ATAPI:
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term.write("ata:");
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term.write(name);
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term.write(": ATAPI drive detected.\n");
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break;
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default:
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break;
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}
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}
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void kernel_main(void)
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{
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term.write("Clyne's kernel, v2024\n\n");
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if (!multiboot_initialize())
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for (;;);
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idt_register_callback(14, [](auto& regs) {
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term.write("Page fault! eip=");
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term.write(regs.eip);
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term.write('\n');
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for (;;);
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});
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acpi_initialize();
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memory_initialize();
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gdt_initialize();
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pic_initialize();
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idt_initialize();
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pit_initialize();
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keyboard_initialize();
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asm volatile("sti");
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tasking_initialize();
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term.write("Tasking enabled.\n");
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ATA::Bus<ATA::Primary> bus0;
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ATA::Bus<ATA::Secondary> bus1;
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ata_probe(bus0, ATA::Master, "0:0");
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ata_probe(bus0, ATA::Slave, "0:1");
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ata_probe(bus1, ATA::Master, "1:0");
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ata_probe(bus1, ATA::Slave, "1:1");
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idt_register_callback(0x28, [](auto& regs) {
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term.write(static_cast<char>(regs.eax));
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});
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term.write("Entering user mode...\n");
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enter_user_mode([] {
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asm volatile("int $0x28" :: "a" ('Z'));
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for (;;);
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});
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for (;;) {
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const auto ch = keyboard_read();
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if (ch)
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term.write(*ch);
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pit_delay_ms(10);
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}
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}
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extern "C"
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void abort()
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{
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term.write("!!! abort() called !!!");
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asm volatile("cli");
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for (;;);
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}
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extern "C"
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int __cxa_atexit(void (*)(void *), void *, void *)
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{
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return 0;
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}
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int __dso_handle = 0;
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