forked from PAWPAW-Mirror/lib_xua
61 lines
1.6 KiB
C
61 lines
1.6 KiB
C
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#include <xs1.h>
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#define __ASSEMBLER__ // Work around for bug #14118
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#include <platform.h>
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#undef __ASSEMBLER__
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#include "devicedefines.h"
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#include "audioports.h"
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/* Note since DSD ports could be reused for I2S ports we do all the setup manually in C */
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#if DSD_CHANS_DAC > 0
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port p_dsd_dac[DSD_CHANS_DAC] = {
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PORT_DSD_DAC0,
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#endif
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#if DSD_CHANS_DAC > 1
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PORT_DSD_DAC1,
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#endif
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#if DSD_CHANS_DAC > 2
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#error > 2 DSD chans currently not supported
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#endif
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#if DSD_CHANS_DAC > 0
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};
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port p_dsd_clk = PORT_DSD_CLK;
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#endif
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void EnableBufferedPort(port p, unsigned transferWidth)
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{
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asm volatile("setc res[%0], %1"::"r"(p), "r"(XS1_SETC_INUSE_ON));
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asm volatile("setc res[%0], %1"::"r"(p), "r"(XS1_SETC_BUF_BUFFERS));
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asm volatile("settw res[%0], %1"::"r"(p),"r"(transferWidth));
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}
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/* C wrapper for ConfigAudioPorts() to handle DSD ports */
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void ConfigAudioPortsWrapper(
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#if (I2S_CHANS_DAC != 0) || (DSD_CHANS_DAC != 0)
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port p_dac[], int numPortsDac,
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#endif
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#if (I2S_CHANS_ADC != 0)
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port p_adc[], int numPortsAdc,
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#endif
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#if (I2S_CHANS_DAC != 0) || (I2S_CHANS_ADC != 0)
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port p_lrclk,
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port p_bclk,
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#endif
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unsigned int divide, unsigned curSamFreq, unsigned int dsdMode)
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{
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ConfigAudioPorts(
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#if (I2S_CHANS_DAC != 0) || (DSD_CHANS_DAC != 0)
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p_dac,
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numPortsDac,
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#endif
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#if (I2S_CHANS_ADC != 0)
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p_adc,
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numPortsAdc,
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#endif
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p_lrclk,
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p_bclk,
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divide, curSamFreq);
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}
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