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Diffstat (limited to 'qemu/roms/u-boot/drivers/sound/sound.c')
-rw-r--r--qemu/roms/u-boot/drivers/sound/sound.c37
1 files changed, 0 insertions, 37 deletions
diff --git a/qemu/roms/u-boot/drivers/sound/sound.c b/qemu/roms/u-boot/drivers/sound/sound.c
deleted file mode 100644
index 9dda2dba8..000000000
--- a/qemu/roms/u-boot/drivers/sound/sound.c
+++ /dev/null
@@ -1,37 +0,0 @@
-/*
- * 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)
-{
- const int sample = 48000;
- const unsigned short amplitude = 16000; /* between 1 and 32767 */
- const int period = freq ? sample / freq : 0;
- const int half = period / 2;
-
- assert(freq);
-
- /* Make sure we don't overflow our buffer */
- if (size % 2)
- size--;
-
- while (size) {
- int i;
- for (i = 0; size && i < half; i++) {
- size -= 2;
- *data++ = amplitude;
- *data++ = amplitude;
- }
- for (i = 0; size && i < period - half; i++) {
- size -= 2;
- *data++ = -amplitude;
- *data++ = -amplitude;
- }
- }
-}