From ee6e6c49cc165b612f58a7ec825fc0da0ddf99e4 Mon Sep 17 00:00:00 2001
From: Julien CLEMENT <julien.clement@epita.fr>
Date: Thu, 21 Apr 2022 17:33:13 +0200
Subject: [PATCH] feat(pit): add tick counter

Signed-off-by: Julien CLEMENT <julien.clement@epita.fr>
---
 src/interrupts/pic/mod.rs |  2 +-
 src/interrupts/pic/pit.rs | 11 ++++++++++-
 2 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/src/interrupts/pic/mod.rs b/src/interrupts/pic/mod.rs
index 04d9e55..f281efd 100644
--- a/src/interrupts/pic/mod.rs
+++ b/src/interrupts/pic/mod.rs
@@ -5,7 +5,7 @@ use pc_keyboard::{layouts, DecodedKey, HandleControl, Keyboard, ScancodeSet1};
 use x86_64::structures::idt::{InterruptStackFrame};
 use x86_64::instructions::port::Port;
 use spin::{self, Mutex};
-pub use pit::timer_interrupt_handler;
+pub use pit::{timer_interrupt_handler, gettick};
 
 pub mod pit;
 
diff --git a/src/interrupts/pic/pit.rs b/src/interrupts/pic/pit.rs
index f8f7376..dab2bf5 100644
--- a/src/interrupts/pic/pit.rs
+++ b/src/interrupts/pic/pit.rs
@@ -1,9 +1,18 @@
 use super::{PICS, InterruptIndex};
 use x86_64::structures::idt::InterruptStackFrame;
+use crate::{println};
+use lazy_static::lazy_static;
+
+static mut TICKS: u64 = 0;
+
+pub fn gettick() -> u64 {
+    unsafe { return TICKS }
+
+}
 
 pub extern "x86-interrupt" fn timer_interrupt_handler(_stack_frame: InterruptStackFrame) {
-    // print!(".");
     unsafe {
+        TICKS += 1;
         PICS.lock()
             .notify_end_of_interrupt(InterruptIndex::Timer.as_u8());
     }