From b159aa0b50f11b2a91e0363ea31453e348e7d5f5 Mon Sep 17 00:00:00 2001
From: Mathieu Maret <mathieu.maret@gmail.com>
Date: Wed, 7 Nov 2018 17:47:06 +0100
Subject: [PATCH] implement capslock

---
 drivers/keyboard.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/keyboard.c b/drivers/keyboard.c
index 3c27b07..5a49276 100644
--- a/drivers/keyboard.c
+++ b/drivers/keyboard.c
@@ -61,7 +61,7 @@ const char *scancode[128] = {
     /* 55 */ 0,
     /* 56 */ 0, /* left alt*/
     /* 57 */ " ",
-    /* 58 */ 0,
+    /* 58 */ 0, /* caps Lock */
     /* 59 */ "\eOP",   /* F1 */
     /* 60 */ "\eOQ",   /* F2 */
     /* 61 */ "\eOR",   /* F3 */
@@ -266,6 +266,7 @@ void keyboard_do_irq()
 {
 	static int lshift = 0;
 	static int rshift = 0;
+	static int capslock = 0;
 	unsigned char c   = 0;
 	if (inb(0x60) != c) {
 		c = inb(0x60);
@@ -278,8 +279,11 @@ void keyboard_do_irq()
 					case 54:
 						rshift = 1;
 						break;
+					case 58:
+						capslock = 1 - capslock;
+						break;
 					default:
-						if (lshift || rshift)
+						if ((lshift || rshift) ^ capslock)
 							printf(scancode_shift[(int)c]);
 						else
 							printf(scancode[(int)c]);
@@ -292,7 +296,6 @@ void keyboard_do_irq()
 						break;
 					case 54:
 						rshift = 0;
-						break;
 				}
 			}
 		}