70 lines
2.8 KiB
C
70 lines
2.8 KiB
C
#include <efi.h>
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#include "boot_info.h"
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void kmain(BootInfo *Boot)
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{
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EFI_INPUT_KEY Key;
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Boot->clear_screen();
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Boot->set_attribute(EFI_TEXT_ATTR(EFI_LIGHTGREEN, EFI_BLACK));
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Boot->print(L"================================================\n\r");
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Boot->print(L" Welcome to Simple UEFI Operating System!\n\r");
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Boot->print(L"================================================\n\r");
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Boot->print(L"\n\r");
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Boot->print(L"System Information:\n\r");
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Boot->print(L" UEFI Firmware Vendor: %s\n\r", Boot->SystemTable->FirmwareVendor);
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Boot->print(L" UEFI Firmware Revision: %d.%d\n\r",
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Boot->SystemTable->FirmwareRevision >> 16,
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Boot->SystemTable->FirmwareRevision & 0xFFFF);
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Boot->print(L"\n\r");
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Boot->print(L"Available Services:\n\r");
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Boot->print(L" - Console Input/Output: Active\n\r");
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Boot->print(L" - Runtime Services: Active\n\r");
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Boot->print(L" - Boot Services: Active\n\r");
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Boot->print(L"\n\r");
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Boot->print(L"Commands:\n\r");
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Boot->print(L" 'h' - Display help\n\r");
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Boot->print(L" 'i' - Display system info\n\r");
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Boot->print(L" 'c' - Clear screen\n\r");
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Boot->print(L" 'q' - Shutdown\n\r");
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Boot->print(L"\n\r");
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Boot->print(L"Press a key to start...\n\r");
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while (TRUE) {
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if (EFI_ERROR(Boot->read_key(&Key))) {
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continue;
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}
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if (Key.UnicodeChar == L'q' || Key.UnicodeChar == L'Q') {
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Boot->print(L"\n\rShutting down...\n\r");
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Boot->shutdown();
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} else if (Key.UnicodeChar == L'h' || Key.UnicodeChar == L'H') {
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Boot->print(L"\n\r=== Help ===\n\r");
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Boot->print(L"This is a minimal UEFI operating system.\n\r");
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Boot->print(L"It demonstrates basic UEFI functionality.\n\r");
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Boot->print(L"\n\r");
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} else if (Key.UnicodeChar == L'i' || Key.UnicodeChar == L'I') {
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Boot->print(L"\n\r=== System Info ===\n\r");
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Boot->print(L"Firmware Vendor: %s\n\r", Boot->SystemTable->FirmwareVendor);
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Boot->print(L"Firmware Revision: %d.%d\n\r",
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Boot->SystemTable->FirmwareRevision >> 16,
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Boot->SystemTable->FirmwareRevision & 0xFFFF);
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Boot->print(L"UEFI Specification: %d.%d\n\r",
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Boot->SystemTable->Hdr.Revision >> 16,
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Boot->SystemTable->Hdr.Revision & 0xFFFF);
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Boot->print(L"\n\r");
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} else if (Key.UnicodeChar == L'c' || Key.UnicodeChar == L'C') {
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Boot->clear_screen();
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Boot->print(L"Screen cleared. Press 'h' for help.\n\r");
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} else if (Key.UnicodeChar >= 32 && Key.UnicodeChar < 127) {
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Boot->print(L"%c", Key.UnicodeChar);
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} else if (Key.UnicodeChar == L'\r') {
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Boot->print(L"\n\r> ");
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}
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}
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}
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