added basic shell with one command.

1 files changed, 46 insertions, 13 deletions

diff --git a/kernel/keyboard.c b/kernel/keyboard.c
index f7887f2..d412c84 100644
--- a/kernel/keyboard.c
+++ b/kernel/keyboard.c
@@ -1,21 +1,22 @@
-
 #include "kernel.h"
 #include "console.h"
 
 /// keyboard driver ////
 
-static uint8_t kb_in;
-static int cursor=0;
-static char last_code=0;
 
-void int0(uint8_t in)
+//static int cursor=0;
+//static char last_code=0;
+
+void keyboard_handle(uint8_t in)
 {
 
+#ifdef DEBUG
     // test interrupt 88 // whenver A is pressed
     if(in==0x1e)
     {
 	int_generate88();
     }
+#endif
 
     int i=0;
     //
@@ -25,7 +26,7 @@ void int0(uint8_t in)
 	0x1e,	// A
 	0x30,	// B
 	0x2e,	// C
-	0x20,	// D
+	0x20,	// s/OSDev19.htmlD
 	0x12,	// E
 	0x21,	// F
 	0x22,	// G
@@ -50,7 +51,7 @@ void int0(uint8_t in)
 	0x2c,	// Z
 	};
 
-    uint8_t break_codes[]={ 
+    uint8_t break_alpha[]={ 
 	0x9e,	// A
 	0xb0,	// B
 	0xae,	// C
@@ -79,30 +80,62 @@ void int0(uint8_t in)
 	0xac,	// Z
 	};
 
-    //if(last_code==*int_count)return;
+    uint8_t break_key_enter=0x9c;
+    uint8_t break_key_space=0xb9;
+    uint8_t break_key_backspace=0x8e;
 
+    //if(last_code==*int_count)return;
+/*
     for(i=0;i<26;i++)
     {
   	if(make_codes[i]==in)
 	{
-	    print_char_col(cursor,20,'A'+i,0xf);
+//	    print_char_col(cursor,20,'A'+i,0xf);
+//	    scr_put_char('A'+i);
 	}
     }
+    */
+
+    if(break_key_space==in)
+    {
+	scr_put_char(' ');
+	shell_put(' ');
+	return;
+    }
+
+    if(break_key_backspace==in)
+    {
+	scr_backspace();
+	shell_backspace();
+	return;
+    }
+
+    if(break_key_enter==in)
+    {
+	scr_nextline();
+	shell_execute();
+	return;
+    }
 
     for(i=0;i<26;i++)
     {
-  	if(break_codes[i]==in)
+  	if(break_alpha[i]==in)
 	{
-	    print_char_col(cursor++,20,'a'+i,SCR_RED);
+	    //print_char_col(cursor++,20,'a'+i,SCR_RED);
+	    scr_put_char('A'+i);
+	    shell_put('A'+i);
+	    return;
 	}
     }
 
-    last_code=in;
+//    last_code=in;
 
 }
 
 void int_kb_handler()
 {
+    static uint8_t kb_in;
+
     __asm__("pusha");
 
     __asm__("in $0x60, %al");
@@ -112,7 +145,7 @@ void int_kb_handler()
     //scr_put_string("irq 1 -> kb scancodes : ");
     //scr_put_hex(kb_in);
 
-    int0(kb_in); //TODO!!
+    keyboard_handle(kb_in); //TODO!!
 
     __asm__("mov $0x20, %al");
     __asm__("out %al, $0x20");