97 lines
2.1 KiB
C
97 lines
2.1 KiB
C
/**************************************************************************//**
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*
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* @copyright (C) 2020 Nuvoton Technology Corp. All rights reserved.
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2020-2-7 Wayne First version
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*
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******************************************************************************/
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#ifndef __DRV_I2S_H__
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#define __DRV_I2S_H__
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#include <rtdevice.h>
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#include "NuMicro.h"
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#include <drv_pdma.h>
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#if !defined(NU_I2S_DMA_FIFO_SIZE)
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#define NU_I2S_DMA_FIFO_SIZE (2048)
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#endif
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#if !defined(NU_I2S_DMA_BUF_BLOCK_NUMBER)
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#define NU_I2S_DMA_BUF_BLOCK_NUMBER (2)
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#endif
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#if ( (NU_I2S_DMA_FIFO_SIZE % NU_I2S_DMA_BUF_BLOCK_NUMBER) != 0 )
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#error "Please give an aligned definition"
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#endif
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#if ( NU_I2S_DMA_FIFO_SIZE < 2048 )
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#warning "DMA FIFO too small, miss voice?"
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#endif
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#define NU_I2S_DMA_BUF_BLOCK_SIZE (NU_I2S_DMA_FIFO_SIZE/NU_I2S_DMA_BUF_BLOCK_NUMBER)
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typedef enum
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{
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NU_I2S_DAI_PLAYBACK,
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NU_I2S_DAI_CAPTURE,
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NU_I2S_DAI_CNT
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} E_NU_I2S_DAI;
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typedef enum
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{
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NU_ACODEC_ROLE_MASTER,
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NU_ACODEC_ROLE_SLAVE,
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} E_NU_ACODEC_ROLE;
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typedef struct
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{
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char *name;
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E_NU_ACODEC_ROLE role;
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struct rt_audio_configure config;
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rt_err_t (*nu_acodec_init)(void);
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rt_err_t (*nu_acodec_reset)(void);
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rt_err_t (*nu_acodec_dsp_control)(struct rt_audio_configure *config);
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rt_err_t (*nu_acodec_mixer_control)(rt_uint32_t ui32Item, rt_uint32_t ui32Value);
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rt_err_t (*nu_acodec_mixer_query)(rt_uint32_t ui32Item, rt_uint32_t *ui32Value);
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} nu_acodec_ops;
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typedef nu_acodec_ops *nu_acodec_ops_t;
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struct nu_i2s_dai
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{
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int16_t pdma_perp;
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int8_t pdma_chanid;
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rt_uint8_t *fifo;
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int16_t fifo_block_idx;
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nu_pdma_desc_t pdma_descs[NU_I2S_DMA_BUF_BLOCK_NUMBER];
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};
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typedef struct nu_i2s_dai *nu_i2s_dai_t;
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struct nu_i2s
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{
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struct rt_audio_device audio;
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struct rt_audio_configure config;
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char *name;
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I2S_T *i2s_base;
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uint32_t i2s_rst;
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struct nu_i2s_dai i2s_dais[NU_I2S_DAI_CNT];
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nu_acodec_ops_t AcodecOps;
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};
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typedef struct nu_i2s *nu_i2s_t;
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#endif // __DRV_I2S_H___
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