X-Git-Url: https://git.kernelconcepts.de/?a=blobdiff_plain;f=include%2Fsound.h;h=155e1b40e28a1c91e9a6f8b228b46a12ff3c30c0;hb=2d2c1a1ab0b7d41a04eb52c5d060fe9f61144bcf;hp=a06ab853869faef2137c18e290c2c0308bd625c7;hpb=3be2bdf5dc69b3142c1162a59bc67191c9077567;p=karo-tx-uboot.git

diff --git a/include/sound.h b/include/sound.h
index a06ab85386..155e1b40e2 100644
--- a/include/sound.h
+++ b/include/sound.h
@@ -29,6 +29,15 @@ struct sound_codec_info {
 	enum en_sound_codec codec_type;
 };
 
+/*
+ * 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.