huxi
50 lines
1.0 KiB
C
50 lines
1.0 KiB
C
#ifndef _AUD_PDM_H_
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#define _AUD_PDM_H_
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#include "generic/typedef.h"
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typedef enum {
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DIGITAL_MIC_DATA,
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ANALOG_MIC_DATA,
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} PLNK_MIC_SEL;
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/*通道0输入模式选择*/
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typedef enum {
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DATA0_SCLK_RISING_EDGE,
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DATA0_SCLK_FALLING_EDGE,
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DATA1_SCLK_RISING_EDGE,
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DATA1_SCLK_FALLING_EDGE,
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} PLNK_CH_MD;
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struct plnk_ch_cfg {
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u8 en;
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PLNK_CH_MD mode;
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PLNK_MIC_SEL mic_type;
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};
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struct plnk_data_cfg {
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u8 en;
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u8 io;
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};
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typedef struct _PLNK_PARM {
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u8 sclk_io; //时钟IO
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u32 sclk_fre; //时钟频率推荐2M
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struct plnk_ch_cfg ch_cfg[4]; //通道内部配置
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struct plnk_data_cfg data_cfg[4]; //数据IO配置
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u8 ch_num; /*使能多少个通道*/
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u32 sr; /*采样率*/
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u32 dma_len; /*一次中断byte数*/
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void *buf;
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void (*isr_cb)(void *priv, void *buf, u32 len);
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void *private_data; //音频私有数据
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} PLNK_PARM;
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void *plnk_init(void *hw_plink);
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void plnk_start(void *hw_plink);
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void plnk_stop(void *hw_plink);
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void plnk_uninit(void *hw_plink);
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#endif/*_AUD_PDM_H_*/
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