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