error_t acpi::mapRsdt(void)
{
LoosePage<acpi::sRsdt> rsdt;
uarch_t rsdtNPages;
if (!acpi::rsdpFound() || !acpi::testForRsdt())
{ return ERROR_GENERAL; };
if (acpi::getRsdt() != NULL) { return ERROR_SUCCESS; };
rsdt = (acpi::sRsdt *)walkerPageRanger::createMappingTo(
cache.rsdp->rsdtPaddr, 2,
PAGEATTRIB_PRESENT | PAGEATTRIB_SUPERVISOR);
if (rsdt == NULL)
{
printf(ERROR ACPI"Failed to temp map RSDT.\n");
return ERROR_MEMORY_VIRTUAL_PAGEMAP;
};
rsdt.nPages = rsdt.nMapped = 2;
rsdt.vasStream = processTrib.__kgetStream()->getVaddrSpaceStream();
rsdt = WPRANGER_ADJUST_VADDR(
rsdt.get(),
paddr_t(cache.rsdp->rsdtPaddr), acpi::sRsdt *);
// Ensure that the table is valid: compute checksum.
if (!checksumIsValid(rsdt.get()))
{
printf(WARNING ACPI"RSDT has invalid checksum.\n");
rsdt = WPRANGER_UNADJUST_VADDR(rsdt.get(), acpi::sRsdt *);
return ERROR_GENERAL;
};
bool frame::isValid() const { //mengembalikan true bila format dan checksum benar
if (formatIsValid()) {
return checksumIsValid();
} else return false;
}
