/*!
 * \file      pga_adc.h
 *
 * \brief     The head file of pga_adc.h
 *
 * \copyright Revised BSD License, see section \ref LICENSE.
 *
 * \code
 *
 *            _  __ _       ________    _
 *           | |/ /(_)___  / ____/ /_  (_)___
 *           |   // / __ \/ /   / __ \/ / __ \
 *          /   |/ / / / / /___/ / / / / /_/ /
 *         /_/|_/_/_/ /_/\____/_/ /_/_/ .___/
 *                                   /_/
 *           (C) 2022-2025 XinChip
 *
 * \endcode
 *
 * \author     ( XinChip ) Alex-J
 *
 * \author     ( XinChip )
 */

/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __BSP_PGA_ADC_H_
#define __BSP_PGA_ADC_H_

/*-----------------------------------------------------------------------------------
                                 INCLUDE HEADE FILES
 ------------------------------------------------------------------------------------*/
#include "stdint.h"
#include "xc60xx.h"
/*------------------------------------------------------------------------------------
                                       Macros
 -------------------------------------------------------------------------------------*/

#define SAMPLING_DEBUG 1
#define REC_TEST_EN 1 //录音测试，定时录音

#define ADC_CLOCK_FREQ_8M ADC_CLK_DIV_0    // ADC_FREQ_8M
#define ADC_CLOCK_FREQ_4M ADC_CLK_DIV_2    // ADC_FREQ_4M
#define ADC_CLOCK_FREQ_2M ADC_CLK_DIV_4    // ADC_FREQ_2M
#define ADC_CLOCK_FREQ_1M ADC_CLK_DIV_8    // ADC_FREQ_1M
#define ADC_CLOCK_FREQ_500K ADC_CLK_DIV_16 // ADC_FREQ_500K

#define ADC_FREQ_CLOCK ADC_CLK_DIV_4 // ADC时钟选择

#define MIC_SAMPLING_8K 0
#define MIC_SAMPLING_16K 1
#define SAMPLING_TYPE MIC_SAMPLING_16K

#define MIC_SAMPLING_MAX_LEN 1 * 256 //缓冲长度,根据需求调节

/*------------------------------------------------------------------------------------
                                        TypeDef
 -------------------------------------------------------------------------------------*/

typedef struct {
  short mic_adc_buff[2][MIC_SAMPLING_MAX_LEN]; //双缓存buff，方便读取以及采样
  uint16_t pga_adc_rx_index;                   //缓存buff下标
  uint8_t
      save_buf_index; //双缓存buff下标，存放第几个mic_adc_buff[save_buf_index][]
  uint8_t buf_full_flag;

  uint8_t freq_con; //采样率计算

#if SAMPLING_DEBUG
  uint32_t pga_adc_rx_con;
  uint8_t rx_flag;
#endif

#if REC_TEST_EN || SAMPLING_DEBUG
  uint8_t rec_len_time;
#endif

} Mic_sampling_cb;

/*------------------------------------------------------------------------------------
                                      Global Variables
 -------------------------------------------------------------------------------------*/
extern Mic_sampling_cb m_sampling_cb;

/*------------------------------------------------------------------------------------
                                    Exported Functions
 -------------------------------------------------------------------------------------*/
void audio_adc_rx_dma_event_handler(void);
void pga_adc_rx_event_handler(uint16_t pga_adc_val);

#endif