From 7a912d1b668ab86ffe088eca3ac7e6f78a04a0c5 Mon Sep 17 00:00:00 2001
From: Tyler Murphy <=>
Date: Mon, 17 Jul 2023 19:34:52 -0400
Subject: refactoring

---
 kernel/src/interrupt/pic.c | 85 ----------------------------------------------
 1 file changed, 85 deletions(-)
 delete mode 100644 kernel/src/interrupt/pic.c

(limited to 'kernel/src/interrupt/pic.c')

diff --git a/kernel/src/interrupt/pic.c b/kernel/src/interrupt/pic.c
deleted file mode 100644
index 86056a1..0000000
--- a/kernel/src/interrupt/pic.c
+++ /dev/null
@@ -1,85 +0,0 @@
-#include <sys.h>
-#include <print.h>
-
-#include "pic.h"
-
-#define PIC1_COMMAND_PORT 0x20
-#define PIC1_DATA_PORT 0x21
-#define PIC2_COMMAND_PORT 0xA0
-#define PIC2_DATA_PORT 0xA1
-
-void pic_remap(uint8_t offset) {
-
-    debugk("Remapping PIC");
-
-	char a1 = inb(PIC1_DATA_PORT);
-	char a2 = inb(PIC2_DATA_PORT);
-	// control word 1
-	// 0x11: initialize, enable ICW4
-	outb(PIC1_COMMAND_PORT, 0x11);
-	io_wait();
-	outb(PIC2_COMMAND_PORT, 0x11);
-	io_wait();
-	// control word 2
-	// interrupt offset
-	outb(PIC1_DATA_PORT, offset);
-	io_wait();
-	outb(PIC2_DATA_PORT, offset + 8);
-	io_wait();
-	// control word 3
-	// primary pic: set which pin secondary is connected to
-	// (pin 2)
-	outb(PIC1_DATA_PORT, 0x04);
-	io_wait();
-	outb(PIC2_DATA_PORT, 2);
-	io_wait();
-	// control word 3
-	// 0x01: enable 8086 mode
-	outb(PIC1_DATA_PORT, 0x01);
-	io_wait();
-	outb(PIC2_DATA_PORT, 0x01);
-	io_wait();
-	// clear data registers
-	outb(PIC1_DATA_PORT, a1);
-	outb(PIC2_DATA_PORT, a2);
-
-    succek("PIC has been remapped to offset 0x%X", offset);
-}
-
-void pic_mask(int irq) {
-	uint8_t port;
-	if(irq < 8) {
-		port = PIC1_DATA_PORT;
-	} else {
-		irq -= 8;
-		port = PIC2_DATA_PORT;
-	}
-	uint8_t mask = inb(port);
-	outb(port, mask | (1 << irq));
-}
-
-void pic_unmask(int irq) {
-	uint8_t port;
-	if(irq < 8) {
-		port = PIC1_DATA_PORT;
-	} else {
-		irq -= 8;
-		port = PIC2_DATA_PORT;
-	}
-	uint8_t mask = inb(port);
-	outb(port, mask & ~(1 << irq));
-}
-
-void pic_disable(void) {
-	outb(PIC1_DATA_PORT, 0xff);
-	io_wait();
-	outb(PIC2_DATA_PORT, 0xff);
-	io_wait();
-}
-
-void pic_eoi(int irq) {
-	if(irq >= 8) {
-		outb(PIC2_COMMAND_PORT, 0x20);
-	}
-	outb(PIC1_COMMAND_PORT, 0x20);
-}
-- 
cgit v1.2.3-freya