diff options
Diffstat (limited to 'drivers/sound/sound.c')
| -rw-r--r-- | drivers/sound/sound.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/drivers/sound/sound.c b/drivers/sound/sound.c index 969408186fd..4f0ad0d8f0d 100644 --- a/drivers/sound/sound.c +++ b/drivers/sound/sound.c @@ -7,11 +7,11 @@ #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) { - 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); @@ -25,12 +25,10 @@ void sound_create_square_wave(unsigned short *data, int size, uint32_t freq) 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; } } } |