added copyright and license notice.

1 files changed, 17 insertions, 0 deletions

diff --git a/timer.c b/timer.c
index 21dda523c1..edbb4409d2 100644
--- a/timer.c
+++ b/timer.c
@@ -1,3 +1,20 @@
+/*
+Copyright 2011 Jun Wako <wakojun@gmail.com>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
 #include <avr/io.h>
 #include <avr/interrupt.h>
 #include <stdint.h>