Add: very very basic keyboard driver with shady keymap

kb.c

@@ -0,0 +1,63 @@
+#include "io.h"
+#include "stdio.h"
+#include "system.h"
+
+unsigned char kbdus[128] =
+{
+    0,  27, '1', '2', '3', '4', '5', '6', '7', '8',	/* 9 */
+    '9', '0', '-', '=', '\b',	/* Backspace */
+    '\t',			/* Tab */
+    'q', 'w', 'e', 'r',	/* 19 */
+    't', 'y', 'u', 'i', 'o', 'p', '[', ']', '\n',	/* Enter key */
+    0,			/* 29   - Control */
+    'a', 's', 'd', 'f', 'g', 'h', 'j', 'k', 'l', ';',	/* 39 */
+    '\'', '`',   0,		/* Left shift */
+    '\\', 'z', 'x', 'c', 'v', 'b', 'n',			/* 49 */
+    'm', ',', '.', '/',   0,				/* Right shift */
+    '*',
+    0,	/* Alt */
+    ' ',	/* Space bar */
+    0,	/* Caps lock */
+    0,	/* 59 - F1 key ... > */
+    0,   0,   0,   0,   0,   0,   0,   0,
+    0,	/* < ... F10 */
+    0,	/* 69 - Num lock*/
+    0,	/* Scroll Lock */
+    0,	/* Home key */
+    0,	/* Up Arrow */
+    0,	/* Page Up */
+    '-',
+    0,	/* Left Arrow */
+    0,
+    0,	/* Right Arrow */
+    '+',
+    0,	/* 79 - End key*/
+    0,	/* Down Arrow */
+    0,	/* Page Down */
+    0,	/* Insert Key */
+    0,	/* Delete Key */
+    0,   0,   0,
+    0,	/* F11 Key */
+    0,	/* F12 Key */
+    0,	/* All other keys are undefined */
+};
+
+void keyboard_handler()
+{
+	unsigned char scancode;
+
+	scancode = inb(0x60);
+
+	if (scancode & 0x80)
+	{
+	}
+	else 
+	{
+		putc(kbdus[scancode]);
+	}
+}
+
+void keyboard_install()
+{
+	irq_install_handler(1, keyboard_handler);
+}

kmain.c

@@ -25,11 +25,13 @@ int kmain(int retvalue)
 
   colorputs("Blank OS version 1 iteration 3 minor 20\n", 10);
 
-  // TODO: Framebuffer upgrade: color output
   // TODO: Serial printf to dump registers on kernel panic
   // TODO: Fix scrolling bug (framebuffer driver)
+  // TODO: Fix keyboard driver bug (some keys mapped weirdly) + add suport for SHIFT and backspace (deleting character)
+  // TODO: Grub modules to load programs
+  // TODO: Folder and build process restructuration
 
-  timer_install();
+  //timer_install();
-
+  keyboard_install();
   return retvalue;
 }

makefile

@@ -1,4 +1,4 @@
-OBJECTS = loader.o kmain.o stdio.o io.o string.o serial.o gdt.o idt.o system.o isr.o irq.o timer.o 
+OBJECTS = loader.o kmain.o stdio.o io.o string.o serial.o gdt.o idt.o system.o isr.o irq.o timer.o kb.o 
 CC = gcc
 CFLAGS = -m32 -nostdlib -nostdinc -fno-builtin -fno-stack-protector -nostartfiles -nodefaultlibs -Wall -Wextra -c
 LDFLAGS = -T link.ld -melf_i386

system.h

@@ -19,5 +19,6 @@ void irq_install_handler(int irq, void (*handler)(struct regs *r));
 void irq_uninstall_handler(int irq);
 void timer_install();
 void delay(int ticks);
+void keyboard_install();
 #endif