audio.h

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/********************************************************************************************************
 * @file     audio.h
 *
 * @brief    This is the Audio driver header file for TLSR8258
 *
 * @author   Driver Group
 * @date     May 8, 2018
 *
 * @par      Copyright (c) 2018, Telink Semiconductor (Shanghai) Co., Ltd.
 *           All rights reserved.
 *
 *           The information contained herein is confidential property of Telink
 *           Semiconductor (Shanghai) Co., Ltd. and is available under the terms
 *           of Commercial License Agreement between Telink Semiconductor (Shanghai)
 *           Co., Ltd. and the licensee or the terms described here-in. This heading
 *           MUST NOT be removed from this file.
 *
 *           Licensees are granted free, non-transferable use of the information in this
 *           file under Mutual Non-Disclosure Agreement. NO WARRENTY of ANY KIND is provided.
 * @par      History:
 *           1.initial release(DEC. 26 2018)
 *
 * @version  A001
 *
 *******************************************************************************************************/

#ifndef audio_H
#define audio_H


#include "register.h"
#include "i2c.h"
#include "dfifo.h"

#define AUDIO_DBL_BUF_ENABLE    0

typedef enum{
    AUDIO_8K,
    AUDIO_16K,
    AUDIO_32K,
    RATE_SIZE
}AudioRate_Typedef;

typedef enum{
    AMIC,
    DMIC,
    I2S_IN,
    USB_IN,
    BUF_IN,
}AudioInput_Typedef;

typedef enum{
    CODEC_MODE_MICPHONE_TO_HEADPHONE_LINEOUT_I2S,
    CODEC_MODE_LINE_TO_HEADPHONE_LINEOUT_I2S,
    CODEC_MODE_I2S_TO_HEADPHONE_LINEOUT,
}CodecMode_Typedef;

enum{
    AUD_VOLUME_MANUAL,
    AUD_VOLUME_AUTO,
};

void audio_stop(void);

static inline void audio_reset(void)
{
    reg_rst2 = FLD_RST2_AUD;
    reg_rst2 = 0;
}

static inline void audio_set_dmic_clk(unsigned char step,unsigned char mod)
{
    reg_dmic_step = step|FLD_DMIC_CLK_EN;
    reg_dmic_mod = mod;
}

static inline void audio_set_i2s_clk(unsigned char step,unsigned char mod)
{
    reg_i2s_step = step|FLD_I2S_CLK_EN;
    reg_i2s_mod = mod;
}
static inline unsigned short get_mic_wr_ptr (void)
{
    return reg_audio_wptr >>1;
}
void audio_amic_init(AudioRate_Typedef Audio_Rate);
void audio_dmic_init(AudioRate_Typedef Audio_Rate);
void audio_usb_init(AudioRate_Typedef Audio_Rate);

void audio_buff_init(AudioRate_Typedef Audio_Rate);

void audio_i2s_init(void);


void audio_set_sdm_output(AudioInput_Typedef InType,AudioRate_Typedef Audio_Rate,unsigned char audio_out_en);

void audio_set_usb_output(void);

void audio_set_i2s_output(AudioInput_Typedef InType,AudioRate_Typedef Audio_Rate);

void audio_set_codec(I2C_GPIO_GroupTypeDef i2c_pin_group, CodecMode_Typedef CodecMode,unsigned sysclk);

#endif
 //end of GP3