app_pdm.h File Reference

Header file containing functions prototypes of PDM app library. More...

#include "grx_hal.h"
#include "app_drv_error.h"
#include "app_drv_config.h"
#include "app_io.h"
#include "app_dma.h"

Go to the source code of this file.

Classes

struct  app_pdm_pin_t
 PDM IO configuration Structures. More...
 
struct  app_pdm_pin_cfg_t
 PDM IO Structures. More...
 
struct  app_pdm_dma_t
 PDM operate mode Enumerations definition. More...
 
struct  app_pdm_evt_t
 PDM event structure definition. More...
 
struct  pdm_env_t
 app pdm instance structure. More...
 
struct  app_pdm_params_t
 PDM parameters structure definition. More...
 

Typedefs

typedef void(* app_pdm_evt_handler_t) (app_pdm_evt_t *type)
 PDM event callback definition. More...
 

Enumerations

enum  app_pdm_evt_type_t {
  APP_PDM_EVT_DMA_ERROR,
  APP_PDM_EVT_DMA_TFR,
  APP_PDM_EVT_DMA_BLK,
  APP_PDM_EVT_LEFT_OVERFLOW,
  APP_PDM_EVT_RIGHT_OVERFLOW
}
 PDM event Enumerations definition. More...
 
enum  app_pdm_state_t {
  APP_PDM_INACTIVITY = 0,
  APP_PDM_ACTIVITY
}
 pdm state types. More...
 

Functions

uint16_t app_pdm_init (app_pdm_params_t *p_params, app_pdm_evt_handler_t evt_handler)
 Initialize the APP PDM DRIVER according to the specified parameters in the app_pdm_params_t and app_pdm_evt_handler_t. More...
 
uint16_t app_pdm_deinit (void)
 De-initialize the APP PDM DRIVER peripheral. More...
 
uint16_t app_pdm_left_start_dma (uint16_t *p_data, uint32_t length)
 Start the pdm left channel transfer with dma. More...
 
uint16_t app_pdm_right_start_dma (uint16_t *p_data, uint32_t length)
 Start the pdm right channel transfer with dma. More...
 
uint16_t app_pdm_stereo_start_dma (uint32_t *p_data, uint32_t length)
 Start the pdm dual channel transfer with dma. More...
 
uint16_t app_pdm_left_start_dma_sg_llp (uint16_t *p_data, uint32_t length, dma_sg_llp_config_t *sg_llp_config)
 Start the pdm left channel transfer with dma's sg and llp functions. More...
 
uint16_t app_pdm_right_start_dma_sg_llp (uint16_t *p_data, uint32_t length, dma_sg_llp_config_t *sg_llp_config)
 Start the pdm right channel transfer with dma's sg and llp functions. More...
 
uint16_t app_pdm_stereo_start_dma_sg_llp (uint32_t *p_data, uint32_t length, dma_sg_llp_config_t *sg_llp_config)
 Start the pdm dual channel transfer with dma's sg and llp functions. More...
 
uint16_t app_pdm_abort (void)
 Abort the pdm transfer. More...
 
pdm_handle_tapp_pdm_get_handle (void)
 Return the PDM handle. More...
 

Detailed Description

Header file containing functions prototypes of PDM app library.

Author
BLE Driver Team
Attention
#####Copyright (c) 2019 GOODIX All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. Neither the name of GOODIX nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

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Definition in file app_pdm.h.