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