X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=drivers%2Fsound%2Fsound.c;h=dd3f9db4f7547da4b45491eb44e8dd906062e504;hb=7a6c6dba28fd084f37ff43bebd721caeae9ab698;hp=9dda2dba822aa8bc0a4aaf504130f1bfaddfc530;hpb=a77bf70978a42e94790a8bc81941edc1026939ce;p=oweals%2Fu-boot.git

diff --git a/drivers/sound/sound.c b/drivers/sound/sound.c
index 9dda2dba82..dd3f9db4f7 100644
--- a/drivers/sound/sound.c
+++ b/drivers/sound/sound.c
@@ -1,18 +1,17 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2012 Samsung Electronics
  * R. Chandrasekar <rcsekar@samsung.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
 #include <sound.h>
 
-void sound_create_square_wave(unsigned short *data, int size, uint32_t freq)
+void sound_create_square_wave(uint sample_rate, unsigned short *data, int size,
+			      uint freq, uint channels)
 {
-	const int sample = 48000;
 	const unsigned short amplitude = 16000; /* between 1 and 32767 */
-	const int period = freq ? sample / freq : 0;
+	const int period = freq ? sample_rate / freq : 0;
 	const int half = period / 2;
 
 	assert(freq);
@@ -22,16 +21,17 @@ void sound_create_square_wave(unsigned short *data, int size, uint32_t freq)
 		size--;
 
 	while (size) {
-		int i;
+		int i, j;
+
 		for (i = 0; size && i < half; i++) {
 			size -= 2;
-			*data++ = amplitude;
-			*data++ = amplitude;
+			for (j = 0; j < channels; j++)
+				*data++ = amplitude;
 		}
 		for (i = 0; size && i < period - half; i++) {
 			size -= 2;
-			*data++ = -amplitude;
-			*data++ = -amplitude;
+			for (j = 0; j < channels; j++)
+				*data++ = -amplitude;
 		}
 	}
 }