Heavy restructuring of libc, kernel and apps

1 files changed, 0 insertions, 231 deletions

diff --git a/src/drivers/interrupts.c b/src/drivers/interrupts.c
deleted file mode 100644
index 0b94208..0000000
--- a/src/drivers/interrupts.c
+++ /dev/null
@@ -1,231 +0,0 @@
-// MIT License, Copyright (c) 2020 Marvin Borner
-// TODO: Remove some magic numbers
-
-#include <cpu.h>
-#include <def.h>
-#include <interrupts.h>
-#include <mem.h>
-#include <print.h>
-#include <serial.h>
-
-/**
- * IDT
- */
-
-void idt_set_gate(u8 num, u32 base, u16 sel, u8 flags)
-{
-	// Specify the interrupt routine's base address
-	idt[num].base_low = (u16)(base & 0xFFFF);
-	idt[num].base_high = (u16)((base >> 16) & 0xFFFF);
-
-	// Set selector/segment of IDT entry
-	idt[num].sel = sel;
-	idt[num].always0 = 0;
-	idt[num].flags = (u8)(flags | 0x60);
-}
-
-// Install IDT
-void idt_install()
-{
-	// Set IDT pointer and limit
-	idt_ptr.limit = (sizeof(struct idt_entry) * 256) - 1;
-	idt_ptr.base = &idt;
-
-	// Clear IDT by setting memory cells to 0
-	memset(&idt, 0, sizeof(struct idt_entry) * 256);
-
-	__asm__("lidt %0" : : "m"(idt_ptr));
-}
-
-/**
- * IRQ
- */
-
-void (*irq_routines[16])(struct regs *) = { 0 };
-
-// Install IRQ handler
-void irq_install_handler(int irq, void (*handler)(struct regs *r))
-{
-	irq_routines[irq] = handler;
-}
-
-// Remove IRQ handler
-void irq_uninstall_handler(int irq)
-{
-	irq_routines[irq] = 0;
-}
-
-// Remap the IRQ table
-void irq_remap()
-{
-	outb(0x20, 0x11);
-	outb(0xA0, 0x11);
-	outb(0x21, 0x20);
-	outb(0xA1, 0x28);
-	outb(0x21, 0x04);
-	outb(0xA1, 0x02);
-	outb(0x21, 0x01);
-	outb(0xA1, 0x01);
-	outb(0x21, 0x00);
-	outb(0xA1, 0x00);
-}
-
-// Handle IRQ ISRs
-void irq_handler(struct regs *r)
-{
-	void (*handler)(struct regs * r);
-
-	// Execute custom handler if exists
-	handler = irq_routines[r->int_no - 32];
-	if (handler)
-		handler(r);
-
-	// Send EOI to second (slave) PIC
-	if (r->int_no >= 40)
-		outb(0xA0, 0x20);
-
-	// Send EOI to master PIC
-	outb(0x20, 0x20);
-}
-
-// Map ISRs to the correct entries in the IDT
-void irq_install()
-{
-	irq_remap();
-
-	idt_set_gate(32, (u32)irq0, 0x08, 0x8E);
-	idt_set_gate(33, (u32)irq1, 0x08, 0x8E);
-	idt_set_gate(34, (u32)irq2, 0x08, 0x8E);
-	idt_set_gate(35, (u32)irq3, 0x08, 0x8E);
-	idt_set_gate(36, (u32)irq4, 0x08, 0x8E);
-	idt_set_gate(37, (u32)irq5, 0x08, 0x8E);
-	idt_set_gate(38, (u32)irq6, 0x08, 0x8E);
-	idt_set_gate(39, (u32)irq7, 0x08, 0x8E);
-
-	idt_set_gate(40, (u32)irq8, 0x08, 0x8E);
-	idt_set_gate(41, (u32)irq9, 0x08, 0x8E);
-	idt_set_gate(42, (u32)irq10, 0x08, 0x8E);
-	idt_set_gate(43, (u32)irq11, 0x08, 0x8E);
-	idt_set_gate(44, (u32)irq12, 0x08, 0x8E);
-	idt_set_gate(45, (u32)irq13, 0x08, 0x8E);
-	idt_set_gate(46, (u32)irq14, 0x08, 0x8E);
-	idt_set_gate(47, (u32)irq15, 0x08, 0x8E);
-}
-
-/**
- * ISR
- */
-
-void (*isr_routines[256])(struct regs *) = { 0 };
-
-const char *isr_exceptions[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" };
-
-void isr_install_handler(int isr, void (*handler)(struct regs *r))
-{
-	isr_routines[isr] = handler;
-}
-
-void isr_uninstall_handler(int isr)
-{
-	isr_routines[isr] = 0;
-}
-
-void isr_handler(struct regs *r)
-{
-	void (*handler)(struct regs * r);
-
-	// Execute fault handler if exists
-	handler = isr_routines[r->int_no];
-	if (handler) {
-		handler(r);
-	} else if (r->int_no <= 32) {
-		cli();
-		printf("\n%s Exception, halting!\n", isr_exceptions[r->int_no]);
-		printf("Error code: %d\n", r->err_code);
-		while (1) {
-		};
-	}
-}
-
-void isr_install()
-{
-	idt_set_gate(0, (u32)isr0, 0x08, 0x8E);
-	idt_set_gate(1, (u32)isr1, 0x08, 0x8E);
-	idt_set_gate(2, (u32)isr2, 0x08, 0x8E);
-	idt_set_gate(3, (u32)isr3, 0x08, 0x8E);
-	idt_set_gate(4, (u32)isr4, 0x08, 0x8E);
-	idt_set_gate(5, (u32)isr5, 0x08, 0x8E);
-	idt_set_gate(6, (u32)isr6, 0x08, 0x8E);
-	idt_set_gate(7, (u32)isr7, 0x08, 0x8E);
-
-	idt_set_gate(8, (u32)isr8, 0x08, 0x8E);
-	idt_set_gate(9, (u32)isr9, 0x08, 0x8E);
-	idt_set_gate(10, (u32)isr10, 0x08, 0x8E);
-	idt_set_gate(11, (u32)isr11, 0x08, 0x8E);
-	idt_set_gate(12, (u32)isr12, 0x08, 0x8E);
-	idt_set_gate(13, (u32)isr13, 0x08, 0x8E);
-	idt_set_gate(14, (u32)isr14, 0x08, 0x8E);
-	idt_set_gate(15, (u32)isr15, 0x08, 0x8E);
-
-	idt_set_gate(16, (u32)isr16, 0x08, 0x8E);
-	idt_set_gate(17, (u32)isr17, 0x08, 0x8E);
-	idt_set_gate(18, (u32)isr18, 0x08, 0x8E);
-	idt_set_gate(19, (u32)isr19, 0x08, 0x8E);
-	idt_set_gate(20, (u32)isr20, 0x08, 0x8E);
-	idt_set_gate(21, (u32)isr21, 0x08, 0x8E);
-	idt_set_gate(22, (u32)isr22, 0x08, 0x8E);
-	idt_set_gate(23, (u32)isr23, 0x08, 0x8E);
-
-	idt_set_gate(24, (u32)isr24, 0x08, 0x8E);
-	idt_set_gate(25, (u32)isr25, 0x08, 0x8E);
-	idt_set_gate(26, (u32)isr26, 0x08, 0x8E);
-	idt_set_gate(27, (u32)isr27, 0x08, 0x8E);
-	idt_set_gate(28, (u32)isr28, 0x08, 0x8E);
-	idt_set_gate(29, (u32)isr29, 0x08, 0x8E);
-	idt_set_gate(30, (u32)isr30, 0x08, 0x8E);
-	idt_set_gate(31, (u32)isr31, 0x08, 0x8E);
-}
-
-/**
- * Combined
- */
-void interrupts_install()
-{
-	idt_install();
-	isr_install();
-	irq_install();
-}