diff options
Diffstat (limited to 'src/kernel/interrupts/isr.c')
| -rw-r--r-- | src/kernel/interrupts/isr.c | 139 |
1 files changed, 0 insertions, 139 deletions
diff --git a/src/kernel/interrupts/isr.c b/src/kernel/interrupts/isr.c deleted file mode 100644 index ae72a0f..0000000 --- a/src/kernel/interrupts/isr.c +++ /dev/null @@ -1,139 +0,0 @@ -#include <graphics/vesa.h> -#include <interrupts/interrupts.h> -#include <io/io.h> -#include <lib/lib.h> -#include <lib/stdio.h> -#include <lib/string.h> -#include <stdint.h> -#include <system.h> -#include <tasks/process.h> - -// Install ISRs in IDT -void isrs_install() -{ - idt_set_gate(0, (unsigned)isr0, 0x08, 0x8E); - idt_set_gate(1, (unsigned)isr1, 0x08, 0x8E); - idt_set_gate(2, (unsigned)isr2, 0x08, 0x8E); - idt_set_gate(3, (unsigned)isr3, 0x08, 0x8E); - idt_set_gate(4, (unsigned)isr4, 0x08, 0x8E); - idt_set_gate(5, (unsigned)isr5, 0x08, 0x8E); - idt_set_gate(6, (unsigned)isr6, 0x08, 0x8E); - idt_set_gate(7, (unsigned)isr7, 0x08, 0x8E); - - idt_set_gate(8, (unsigned)isr8, 0x08, 0x8E); - idt_set_gate(9, (unsigned)isr9, 0x08, 0x8E); - idt_set_gate(10, (unsigned)isr10, 0x08, 0x8E); - idt_set_gate(11, (unsigned)isr11, 0x08, 0x8E); - idt_set_gate(12, (unsigned)isr12, 0x08, 0x8E); - idt_set_gate(13, (unsigned)isr13, 0x08, 0x8E); - idt_set_gate(14, (unsigned)isr14, 0x08, 0x8E); - idt_set_gate(15, (unsigned)isr15, 0x08, 0x8E); - - idt_set_gate(16, (unsigned)isr16, 0x08, 0x8E); - idt_set_gate(17, (unsigned)isr17, 0x08, 0x8E); - idt_set_gate(18, (unsigned)isr18, 0x08, 0x8E); - idt_set_gate(19, (unsigned)isr19, 0x08, 0x8E); - idt_set_gate(20, (unsigned)isr20, 0x08, 0x8E); - idt_set_gate(21, (unsigned)isr21, 0x08, 0x8E); - idt_set_gate(22, (unsigned)isr22, 0x08, 0x8E); - idt_set_gate(23, (unsigned)isr23, 0x08, 0x8E); - - idt_set_gate(24, (unsigned)isr24, 0x08, 0x8E); - idt_set_gate(25, (unsigned)isr25, 0x08, 0x8E); - idt_set_gate(26, (unsigned)isr26, 0x08, 0x8E); - idt_set_gate(27, (unsigned)isr27, 0x08, 0x8E); - idt_set_gate(28, (unsigned)isr28, 0x08, 0x8E); - idt_set_gate(29, (unsigned)isr29, 0x08, 0x8E); - idt_set_gate(30, (unsigned)isr30, 0x08, 0x8E); - idt_set_gate(31, (unsigned)isr31, 0x08, 0x8E); - - idt_set_gate(0x80, (unsigned)isr128, 0x08, 0x8E); - - info("Installed Interrupt Service Routines"); -} - -irq_handler_t isr_routines[256] = { 0 }; - -// Install custom IRQ handler -void isr_install_handler(u32 isr, irq_handler_t handler) -{ - isr_routines[isr] = handler; -} - -// Remove the custom IRQ handler -void isr_uninstall_handler(u32 isr) -{ - isr_routines[isr] = 0; -} - -// Error exception messages -const char *exception_messages[32] = { "Division By Zero", - "Debug", - "Non Maskable Interrupt", - "Breakpoint", - "Into Detected Overflow", - "Out of Bounds", - "Invalid Opcode", - "No Coprocessor", - - "Double Fault", - "Coprocessor Segment Overrun", - "Bad TSS", - "Segment Not Present", - "Stack Fault", - "General Protection Fault", - "Page Fault", - "Unknown Interrupt", - - "Coprocessor Fault", - "Alignment Check", - "Machine Check", - "Reserved", - "Reserved", - "Reserved", - "Reserved", - "Reserved", - - "Reserved", - "Reserved", - "Reserved", - "Reserved", - "Reserved", - "Reserved", - "Reserved", - "Reserved" }; - -// Master exception/interrupt/fault handler - called by asm -void fault_handler(struct regs *r) -{ - irq_handler_t handler = isr_routines[r->int_no]; - if (handler) { - handler(r); - } else { - u32 faulting_address; - asm("mov %%cr2, %0" : "=r"(faulting_address)); - - log("\n[DEBUG]\nEIP: 0x%x\nEAX: 0x%x\nEBX: 0x%x\nECX: 0x%x\nEDX: 0x%x\nESP: 0x%x\nFault addr: 0x%x\nErr flag: 0x%x\nErr code: 0x%x\nINT code: 0x%x\nINT msg: %s", - r->eip, r->eax, r->ebx, r->ecx, r->edx, r->esp, faulting_address, r->eflags, - r->err_code, r->int_no, exception_messages[r->int_no]); - - char message[128]; - if (r->int_no <= 32) { - strcpy(message, (char *)exception_messages[r->int_no]); - strcat(message, " Exception"); - } else { - strcpy(message, "Unknown Exception"); - } - - if (current_proc != NULL) { - warn("%s: Suspending process %s with ID %d", message, current_proc->name, - current_proc->pid); - memcpy(¤t_proc->regs, r, sizeof(struct regs)); - process_suspend(current_proc->pid); - process_force_switch(); - } else { - debug(RED "%s before multitasking started!" RES, message); - halt_loop(); - } - } -}
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