From 610f91d87152cbe48d3054fcf437d8239da6ef35 Mon Sep 17 00:00:00 2001 From: Amlal Date: Sat, 21 Dec 2024 21:59:13 +0100 Subject: IMP: :boom: Breaking changes some checks are needed to be done. Signed-off-by: Amlal --- dev/Kernel/HALKit/AMD64/HalAPICController.cc | 39 ++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 dev/Kernel/HALKit/AMD64/HalAPICController.cc (limited to 'dev/Kernel/HALKit/AMD64/HalAPICController.cc') diff --git a/dev/Kernel/HALKit/AMD64/HalAPICController.cc b/dev/Kernel/HALKit/AMD64/HalAPICController.cc new file mode 100644 index 00000000..e29bea67 --- /dev/null +++ b/dev/Kernel/HALKit/AMD64/HalAPICController.cc @@ -0,0 +1,39 @@ +/* ------------------------------------------- + + Copyright (C) 2024, TQ B.V, all rights reserved. + +------------------------------------------- */ + +#include +#include + +#define cIOAPICRegVal (4) +#define cIOAPICRegReg (0) + +namespace Kernel::HAL +{ + /// @brief Read from APIC controller. + /// @param reg register. + UInt32 APICController::Read(UInt32 reg) noexcept + { + MUST_PASS(this->fApic); + + UInt32 volatile* io_apic = (UInt32 volatile*)this->fApic; + io_apic[cIOAPICRegReg] = (reg & 0xFF); + + return io_apic[cIOAPICRegVal]; + } + + /// @brief Write to APIC controller. + /// @param reg register. + /// @param value value. + Void APICController::Write(UInt32 reg, UInt32 value) noexcept + { + MUST_PASS(this->fApic); + + UInt32 volatile* io_apic = (UInt32 volatile*)this->fApic; + + io_apic[cIOAPICRegReg] = (reg & 0xFF); + io_apic[cIOAPICRegVal] = value; + } +} // namespace Kernel::HAL -- cgit v1.2.3