Added code to support getting interrupts from the PIC. Can now get some data from the keyboard, however, it's not quite working yet.

2020-08-06 22:36:39 -05:00
parent db1a68188f
commit 49efafe173
15 changed files with 278 additions and 39 deletions
@@ -0,0 +1,27 @@
+#include "../includes/kb.h"
+#include "../includes/pic.h"
+#include "../includes/screen.h"
+
+#define KB_PORT 0x60
+#define KB_STATUS_PORT 0x64
+
+void handle_key_press()
+{
+	pic_acknowledge(33);
+	
+	unsigned char status = inb(KB_STATUS_PORT);
+	
+	if(status & 0x01)
+	{
+		char keycode = inb(KB_PORT);
+	
+		if(keycode < 0) return;
+		
+		draw_string(int_to_string(keycode, 10), 0xF, 0x0);
+	}
+}
+
+void init_kb()
+{
+	outb(0x21, 0xFD);
+}