Function Init

Kernel/src/arch/x86_64/acpi.cpp:139–203

	}

	void Init(){
		if(desc){
			goto success; // Already found
		}

		for(int i = 0; i <= 0x7BFF; i += 16){ // Search first KB for RSDP, the RSDP is aligned on a 16 byte boundary
			if(memcmp((void*)Memory::GetIOMapping(i),signature,8) == 0){
				desc = ((acpi_xsdp_t*)Memory::GetIOMapping(i));

				goto success;
			}
		}

		for(int i = 0x80000; i <= 0x9FFFF; i += 16){ // Search further for RSDP
			if(memcmp((void*)Memory::GetIOMapping(i),signature,8) == 0){
				desc = ((acpi_xsdp_t*)Memory::GetIOMapping(i));

				goto success;
			}
		}

		for(int i = 0xE0000; i <= 0xFFFFF; i += 16){ // Search further for RSDP
			if(memcmp((void*)Memory::GetIOMapping(i),signature,8) == 0){
				desc = ((acpi_xsdp_t*)Memory::GetIOMapping(i));

				goto success;
			}
		}

		{
		const char* panicReasons[]{"System not ACPI Complaiant."};
		KernelPanic(panicReasons,1);
		//return;
		}

		success:

		isos = new List<apic_iso_t*>();

		if(desc->revision == 2){
			rsdtHeader = ((acpi_rsdt_t*)Memory::GetIOMapping(desc->xsdt));
			xsdtHeader = ((acpi_xsdt_t*)Memory::GetIOMapping(desc->xsdt));
		} else{
			rsdtHeader = ((acpi_rsdt_t*)Memory::GetIOMapping(desc->rsdt));
		}

		memcpy(oem,rsdtHeader->header.oem,6);
		oem[6] = 0; // Zero OEM String

		if(debugLevelACPI >= DebugLevelNormal){
			Log::Info("[ACPI] Revision: %d", desc->revision);
		}

		fadt = reinterpret_cast<acpi_fadt_t*>(FindSDT("FACP", 0));

		asm("cli");

		lai_set_acpi_revision(rsdtHeader->header.revision);