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Alex
2022-10-26 21:55:31 +03:00
parent f82aa2c444
commit 581638c256
9 changed files with 202 additions and 86 deletions
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55
Core/Timer.cpp Normal file
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#include <time.hpp>
#include <memory.hpp>
#include <debug.h>
#include <io.h>
#if defined(__amd64__)
#include "../Architecture/amd64/acpi.hpp"
#elif defined(__i386__)
#elif defined(__aarch64__)
#endif
namespace Time
{
void time::Sleep(uint64_t Milliseconds)
{
uint64_t Target = mminq(&((HPET *)hpet)->MainCounterValue) + (Milliseconds * 1000000000) / clk;
while (mminq(&((HPET *)hpet)->MainCounterValue) < Target)
;
}
time::time(void *_acpi)
{
if (_acpi)
{
#if defined(__amd64__)
this->acpi = _acpi;
ACPI::ACPI *acpi = (ACPI::ACPI *)this->acpi;
if (acpi->HPET)
{
Memory::Virtual().Map((void *)acpi->HPET->Address.Address,
(void *)acpi->HPET->Address.Address,
Memory::PTFlag::RW | Memory::PTFlag::PCD);
this->hpet = (void *)acpi->HPET->Address.Address;
HPET *hpet = (HPET *)this->hpet;
trace("%s timer is at address %016p", acpi->HPET->Header.OEMID, (void *)acpi->HPET->Address.Address);
clk = hpet->GeneralCapabilities >> 32;
mmoutq(&hpet->GeneralConfiguration, 0);
mmoutq(&hpet->MainCounterValue, 0);
mmoutq(&hpet->GeneralConfiguration, 1);
}
else
{
trace("HPET not found");
}
#elif defined(__i386__)
#elif defined(__aarch64__)
#endif
}
}
time::~time()
{
}
}