From 7442dc40a12bd61d6a77fafbc1ea031a2b51937a Mon Sep 17 00:00:00 2001
From: Marvin Borner
Date: Thu, 21 Jan 2021 14:40:20 +0100
Subject: Fixed stray keyboard characters

---
 kernel/drivers/keyboard.c | 5 +++++
 kernel/inc/keyboard.h     | 1 +
 kernel/main.c             | 1 +
 libc/inc/stack.h          | 1 +
 libc/stack.c              | 6 ++++++
 5 files changed, 14 insertions(+)

diff --git a/kernel/drivers/keyboard.c b/kernel/drivers/keyboard.c
index 7e295c2..744ca99 100644
--- a/kernel/drivers/keyboard.c
+++ b/kernel/drivers/keyboard.c
@@ -76,6 +76,11 @@ u32 keyboard_ready()
 	return !stack_empty(queue);
 }
 
+void keyboard_reset()
+{
+	stack_clear(queue);
+}
+
 void keyboard_install(void)
 {
 	//keyboard_rate(); TODO: Fix keyboard rate?
diff --git a/kernel/inc/keyboard.h b/kernel/inc/keyboard.h
index 32168f4..af74316 100644
--- a/kernel/inc/keyboard.h
+++ b/kernel/inc/keyboard.h
@@ -4,5 +4,6 @@
 #define KEYBOARD_H
 
 void keyboard_install(void);
+void keyboard_reset();
 
 #endif
diff --git a/kernel/main.c b/kernel/main.c
index 563cae7..7466f5d 100644
--- a/kernel/main.c
+++ b/kernel/main.c
@@ -40,6 +40,7 @@ void kernel_main(struct vid_info *vid_info)
 
 	// Enable drivers
 	sti();
+	keyboard_reset();
 
 	syscall_init();
 	proc_init();
diff --git a/libc/inc/stack.h b/libc/inc/stack.h
index 8fec25f..16725f8 100644
--- a/libc/inc/stack.h
+++ b/libc/inc/stack.h
@@ -23,5 +23,6 @@ u32 stack_push_bot(struct stack *stack, void *data);
 u32 stack_push(struct stack *stack, void *data);
 void *stack_pop(struct stack *stack);
 void *stack_peek(struct stack *stack);
+void stack_clear(struct stack *stack);
 
 #endif
diff --git a/libc/stack.c b/libc/stack.c
index dac18a2..c47dd59 100644
--- a/libc/stack.c
+++ b/libc/stack.c
@@ -117,3 +117,9 @@ void *stack_peek(struct stack *stack)
 
 	return stack->tail;
 }
+
+void stack_clear(struct stack *stack)
+{
+	while (stack_pop(stack))
+		;
+}
-- 
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