From 7afbfc70038201fdea5fa2601be4d3235ffca7d6 Mon Sep 17 00:00:00 2001
From: Radomir Dopieralski <openstack@sheep.art.pl>
Date: Fri, 1 Mar 2019 16:46:59 +0100
Subject: [PATCH] Use find_free_timer()

---
 shared-module/_pew/PewPew.c | 12 +++---------
 1 file changed, 3 insertions(+), 9 deletions(-)

diff --git a/shared-module/_pew/PewPew.c b/shared-module/_pew/PewPew.c
index 755b883945..c1d6aa5c35 100644
--- a/shared-module/_pew/PewPew.c
+++ b/shared-module/_pew/PewPew.c
@@ -74,17 +74,11 @@ void pew_init() {
     }
     if (pewpew_tc_index == 0xff) {
         // Find a spare timer.
-        Tc *tc = NULL;
-        int8_t index = TC_INST_NUM - 1;
-        for (; index >= 0; index--) {
-            if (tc_insts[index]->COUNT16.CTRLA.bit.ENABLE == 0) {
-                tc = tc_insts[index];
-                break;
-            }
-        }
-        if (tc == NULL) {
+        uint8_t index = find_free_timer();
+        if (index == 0xff) {
             mp_raise_RuntimeError(translate(""));
         }
+        Tc *tc = tc_insts[index];
 
         pewpew_tc_index = index;
         set_timer_handler(true, index, TC_HANDLER_PEW);