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CPU: Allow to use IRQs in range of 50 to 178

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Liav A 2020-03-06 03:20:51 +02:00 • committed by Andreas Kling
parent 30fc78bfaf
commit f33fb151b4
1 changed files with 3 additions and 1 deletions
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4
Kernel/Arch/i386/CPU.cpp
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@ -625,6 +625,8 @@ void idt_init()
register_interrupt_handler(0xce, interrupt_126_asm_entry); register_interrupt_handler(0xce, interrupt_126_asm_entry);
register_interrupt_handler(0xcf, interrupt_127_asm_entry); register_interrupt_handler(0xcf, interrupt_127_asm_entry);
dbg() << "Installing Unhandled Handlers";
for (u8 i = 0; i < GENERIC_INTERRUPT_HANDLERS_COUNT; ++i) { for (u8 i = 0; i < GENERIC_INTERRUPT_HANDLERS_COUNT; ++i) {
new UnhandledInterruptHandler(i); new UnhandledInterruptHandler(i);
} }
@ -643,7 +645,7 @@ void handle_interrupt(RegisterState regs)
{ {
clac(); clac();
++g_in_irq; ++g_in_irq;
ASSERT(regs.isr_number >= 0x50 && regs.isr_number <= 0x5f); ASSERT(regs.isr_number >= IRQ_VECTOR_BASE && regs.isr_number <= (IRQ_VECTOR_BASE + GENERIC_INTERRUPT_HANDLERS_COUNT));
u8 irq = (u8)(regs.isr_number - 0x50); u8 irq = (u8)(regs.isr_number - 0x50);
ASSERT(s_interrupt_handler[irq]); ASSERT(s_interrupt_handler[irq]);
s_interrupt_handler[irq]->handle_interrupt(regs); s_interrupt_handler[irq]->handle_interrupt(regs);