64 lines
1.3 KiB
C
64 lines
1.3 KiB
C
#include "lib/print.h"
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#include <stdint.h>
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extern void send_eoi_master(void);
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extern void send_eoi_slave(void);
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extern uint8_t read_isr_master(void);
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extern uint8_t read_isr_slave(void);
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extern uint8_t ps2_read_data();
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struct registers {
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uint32_t edi, esi, ebp, esp_dummy, ebx, edx, ecx, eax;
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uint32_t int_no;
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uint32_t error_code;
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uint32_t eip, cs, eflags, useresp, ss;
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};
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const char* err_messages[32] = {
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[0] = "Divide by 0",
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[1] = "",
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[8] = "",
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[13] = "General Protection Fault",
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[14] = "Page Fault",
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};
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void common_interrupt_handler(struct registers *args) {
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switch (args->int_no) {
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case 0:
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case 1:
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case 2:
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case 3:
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case 4:
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case 5:
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case 6:
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case 7:
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case 8:
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case 9:
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case 10:
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case 11:
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case 12:
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case 13:
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case 14:
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case 15:
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case 16:
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kprint("CPU Error: ");
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kprint(err_messages[args->int_no]);
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kprint("\n");
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break;
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case 32:
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// wake the PIT timer driver
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send_eoi_master();
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break;
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case 33: {
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uint8_t data = ps2_read_data();
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send_eoi_master();
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break;
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}
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default:
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kprint("Received unhandled interrupt\n");
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return;
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}
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} |