mirror of https://github.com/tailix/kernel.git
44 lines
1.0 KiB
C
44 lines
1.0 KiB
C
#include "main.h"
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#include <kernaux/drivers/console.h>
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#include <kernaux/drivers/intel_8259_pic.h>
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static hwint_handler_t handlers[INT_HWINT_COUNT] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
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void hwint_handler(struct IsrRegisters regs)
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{
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if (regs.int_no >= INT_HWINT_COUNT) return;
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const unsigned char hwint_no = regs.int_no - INT_HWINT_FIRST;
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const hwint_handler_t handler = handlers[hwint_no];
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if (!handler) {
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kernaux_drivers_console_printf("[WARN] hwint: Unhandled hardware interrupt: %u\n", hwint_no);
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return;
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}
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handler();
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kernaux_drivers_intel_8259_pic_eoi(regs.int_no);
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}
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void hwint_register_handler(unsigned int int_no, hwint_handler_t handler)
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{
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if (int_no >= INT_HWINT_COUNT) {
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return;
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}
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handlers[int_no] = handler;
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kernaux_drivers_intel_8259_pic_enable(int_no);
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}
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void hwint_unregister_handler(unsigned int int_no)
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{
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if (int_no >= INT_HWINT_COUNT) {
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return;
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}
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kernaux_drivers_intel_8259_pic_disable(int_no);
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handlers[int_no] = 0;
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}
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