dac.h

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#ifndef __DAC_H
#define __DAC_H
 
#include "dac_types.h"
#include "types.h"
 
#include <stdbool.h>
 
#ifdef DAC_USE_DMA // DMA is not currently working due to "write permission error 65"
 
void DAC_InitDMA(u32 sample_rate_hz);
 
void DAC_DeinitDMA(void);
 
void DAC_PlayDMA(const u16 *const pcm_samples, u32 sample_count);
 
void DAC_StopDMA(void);
 
#else
 
void DAC_BUZInit(u8 timer_a, u8 timer_b, u8 int_priority);
 
// TODO: Instead of using standard timers, use RIT for seconds, and SYSTICK for sample feeding
 
void DAC_BUZDeinit(void);
 
void DAC_BUZPlay(DAC_Tone tone, u16 bpm);
 
// TODO: Add multiple tone playback using RIT
 
void DAC_BUZSetVolume(u8 volume);
 
bool DAC_BUZIsPlaying(void);
 
void DAC_BUZStop(void);
 
#endif
 
#endif