feat(putc function added, write a code ascii in a queue)

include/keyboard.h

@@ -5,6 +5,7 @@
 #define SHIFT_UP 0x2A
 #define SHIFT_DOWN 0xAA
 #define NB_KEYS 256
+#define QUEUE_SIZE 8
 
 typedef enum boolean
 {
@@ -20,10 +21,22 @@ typedef struct key_s
     unsigned char top;
 } key_t;
 
+typedef struct queue_s
+{
+    unsigned char first_free;
+    unsigned char cpt;
+    char array[QUEUE_SIZE];
+} queue_t;
+
 key_t KEY_MAPPING[NB_KEYS];
+queue_t keyboard_queue;
 
 void init_keymapping();
 
 char keyboard_map(unsigned char code);
 
+void init_queue();
+
+void putc(char c);
+
 #endif

src/keyboard.c

@@ -79,3 +79,26 @@ char keyboard_map(unsigned char code)
         return KEY_MAPPING[code].top;
     return KEY_MAPPING[code].bottom;
 }
+
+void init_queue()
+{
+    keyboard_queue.cpt = 0;
+    keyboard_queue.first_free = 0;
+}
+
+void putc(unsigned char c)
+{
+    irq_disable();
+
+    if (c == NONE)
+        return;
+
+    if (keyboard_queue.cpt < QUEUE_SIZE)
+    {
+        keyboard_queue.cpt++;
+        keyboard_queue.first_free = (keyboard_queue.first_free + 1) % QUEUE_SIZE;
+        keyboard_queue.array[keyboard_queue.first_free] = c;
+    }
+
+    irq_enable();
+}
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