X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=include%2Fsound.h;h=155e1b40e28a1c91e9a6f8b228b46a12ff3c30c0;hb=1acc0087876229d7ade1b23aaecbccf63de8a615;hp=94922f66daeaf6d5a56c3722d243eeeb254d9f8a;hpb=009d75ccc11d27b9a083375a88bb93cb746b4800;p=platform%2Fkernel%2Fu-boot.git

diff --git a/include/sound.h b/include/sound.h
index 94922f6..155e1b4 100644
--- a/include/sound.h
+++ b/include/sound.h
@@ -2,23 +2,7 @@
  * Copyright (C) 2012 Samsung Electronics
  * R. Chandrasekar < rcsekar@samsung.com>
  *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * 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, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
+ * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #ifndef __SOUND_H__
@@ -46,6 +30,15 @@ struct sound_codec_info {
 };
 
 /*
+ * Generates square wave sound data for 1 second
+ *
+ * @param data          data buffer pointer
+ * @param size          size of the buffer
+ * @param freq          frequency of the wave
+ */
+void sound_create_square_wave(unsigned short *data, int size, uint32_t freq);
+
+/*
  * Initialises audio sub system
  * @param blob	Pointer of device tree node or NULL if none.
  * @return	int value 0 for success, -1 for error