From 3941fe97783c7a31ab04fbfb127f5026dd31ef78 Mon Sep 17 00:00:00 2001
From: Wojtek Kosior <kwojtus@protonmail.com>
Date: Thu, 2 Jan 2020 13:24:29 +0100
Subject: demo of arm timer irq

---
 interrupts.c | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

(limited to 'interrupts.c')

diff --git a/interrupts.c b/interrupts.c
index c6e3f17..62c644b 100644
--- a/interrupts.c
+++ b/interrupts.c
@@ -1,5 +1,6 @@
 #include "io.h"
 #include "svc_interface.h"
+#include "armclock.h"
 
 void __attribute__((noreturn)) setup(void);
 
@@ -58,9 +59,16 @@ void generic_handler(void)
 
 void irq_handler(void)
 {
-  puts("irq happened");
-
-  while(1);
+  if (armclk_irq_pending())
+    {
+      puts("<<irq from timer>>");
+      armclk_set_timer_match_timeout(0x00100000);
+    }
+  else
+    {
+      puts("unknown irq");
+      while(1);
+    }
 }
 
 void fiq_handler(void)
-- 
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