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- #ifndef _DAC_H_
- #define _DAC_H_
- #define MAX_BUFFERS 1
- #define DAC_BUFFER_MAX_SIZE 2400
- extern short dac_buffer[MAX_BUFFERS][DAC_BUFFER_MAX_SIZE];
- extern int dac_buffer_size[MAX_BUFFERS];
- extern unsigned long current_srate;
- extern unsigned int underruns;
- void dac_reset(void);
- int dac_get_writeable_buffer(void);
- int dac_get_readable_buffer(void);
- int dac_readable_buffers(void);
- int dac_writeable_buffers(void);
- int dac_busy_buffers(void);
- int adc_busy_buffers(void);
- int dac_fill_dma(void);
- void dac_enable_dma(void);
- void dac_disable_dma(void);
- int dac_next_dma_empty(void);
- int dac_first_dma_empty(void);
- int adc_next_dma_empty(void);
- int adc_first_dma_empty(void);
- void dac_set_first_dma(short *buffer, int n);
- void dac_set_next_dma(short *buffer, int n);
- int dma_endtx(void);
- void dac_write_reg(unsigned char reg, unsigned short value);
- int dac_set_srate(unsigned long srate);
- void dac_init(void);
- #endif /* _DAC_H_ */
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