57 lines
1.2 KiB
C++
57 lines
1.2 KiB
C++
/**
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* PROJECT: ExectOS
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* COPYRIGHT: See COPYING.md in the top level directory
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* FILE: xtoskrnl/ke/i686/irq.cc
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* DESCRIPTION: Kernel interrupts support for i686 architecture
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* DEVELOPERS: Rafal Kupiec <belliash@codingworkshop.eu.org>
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*/
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#include <xtos.hh>
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/* Kernel Library */
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namespace KE
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{
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/**
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* Sets new interrupt handler for the existing IDT entry.
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*
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* @param HalVector
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* Supplies the HAL vector number.
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*
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* @param Handler
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* Supplies the new interrupt handler.
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*
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* @return This routine does not return any value.
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*
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* @since XT 1.0
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*/
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XTAPI
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VOID
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Irq::SetInterruptHandler(IN ULONG Vector,
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IN PVOID Handler)
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{
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PKPROCESSOR_BLOCK ProcessorBlock;
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/* Get current processor block */
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ProcessorBlock = KeGetCurrentProcessorBlock();
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/* Update interrupt handler */
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ProcessorBlock->IdtBase[(UCHAR) Vector].Offset = (USHORT)((ULONG)Handler & 0xFFFF);
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ProcessorBlock->IdtBase[(UCHAR) Vector].ExtendedOffset = (USHORT)((ULONG)Handler >> 16);
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}
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} /* namespace */
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/* TEMPORARY FOR COMPATIBILITY WITH C CODE */
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XTCLINK
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XTAPI
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VOID
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KeSetInterruptHandler(IN ULONG Vector,
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IN PVOID Handler)
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{
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KE::Irq::SetInterruptHandler(Vector, Handler);
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}
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