openmv/lib/alif/Alif_CMSIS/Source/Driver_PDM_Private.h
iabdalkader daf2bb30da misc: Restructure repo.
Signed-off-by: iabdalkader <i.abdalkader@gmail.com>
2025-04-13 08:28:34 +02:00

93 lines
3.6 KiB
C

/* Copyright (C) 2023 Alif Semiconductor - All Rights Reserved.
* Use, distribution and modification of this code is permitted under the
* terms stated in the Alif Semiconductor Software License Agreement
*
* You should have received a copy of the Alif Semiconductor Software
* License Agreement with this file. If not, please write to:
* contact@alifsemi.com, or visit: https://alifsemi.com/license
*
*/
#ifndef DRIVER_PDM_PRIVATE_H_
#define DRIVER_PDM_PRIVATE_H_
/* System includes */
#include "RTE_Device.h"
#include "RTE_Components.h"
#include CMSIS_device_header
/* include for PDM Driver */
#include "Driver_PDM.h"
#include "pdm.h"
#if(RTE_PDM_DMA_ENABLE || RTE_LPPDM_DMA_ENABLE)
#define PDM_DMA_ENABLE 1
#else
#define PDM_DMA_ENABLE 0
#endif
/* Verify if support for Blocking (Polling) mode is enabled */
#if(RTE_PDM_BLOCKING_MODE_ENABLE || RTE_LPPDM_BLOCKING_MODE_ENABLE)
#define PDM_BLOCKING_MODE_ENABLE 1
#else
#define PDM_BLOCKING_MODE_ENABLE 0
#endif
#if PDM_DMA_ENABLE
#include <DMA_Common.h>
#endif
/**
* enum PDM_INSTANCE.
* PDM instances.
*/
typedef enum _PDM_INSTANCE
{
PDM_INSTANCE_PDM0, /* PDM instance */
PDM_INSTANCE_LPPDM /* LPPDM instance */
}PDM_INSTANCE;
/** \brief PDM Driver states. */
typedef volatile struct _PDM_DRIVER_STATE {
uint32_t initialized : 1; /* Driver Initialized*/
uint32_t powered : 1; /* Driver powered */
uint32_t reserved : 30; /* Reserved */
} PDM_DRIVER_STATE;
#if PDM_DMA_ENABLE
typedef struct _PDM_DMA_HW_CONFIG{
DMA_PERIPHERAL_CONFIG dma_rx; /* DMA rx interface */
}PDM_DMA_HW_CONFIG;
#endif
/**
* Access structure for the saving the PDM Setting and status
*/
typedef struct _PDM_RESOURCES
{
ARM_PDM_SignalEvent_t cb_event; /* PDM application event callback */
PDM_Type *regs; /* PDM register address */
pdm_transfer_t transfer; /* To store PDM Capture Configuration */
PDM_DRIVER_STATE state; /* PDM Driver state */
PDM_INSTANCE instance; /* PDM Driver instance */
uint8_t fifo_watermark; /* PDM fifo watermark value */
ARM_PDM_STATUS status; /* PDM Driver status */
#if PDM_DMA_ENABLE
ARM_DMA_SignalEvent_t dma_cb; /* PDM DMA Callback */
PDM_DMA_HW_CONFIG *dma_cfg; /* DMA controller configuration */
bool dma_enable; /* PDM instance DMA enable */
uint8_t dma_irq_priority; /* PDM instance DMA irq priority */
#endif
#if PDM_BLOCKING_MODE_ENABLE
bool blocking_mode; /* PDM blocking mode transfer enable */
#endif
IRQn_Type error_irq; /* PDM error IRQ number */
IRQn_Type warning_irq; /* PDM warning IRQ number */
IRQn_Type audio_detect_irq; /* PDM audio detect IRQ number */
uint32_t error_irq_priority; /* PDM error IRQ priority */
uint32_t warning_irq_priority; /* PDM warning IRQ priority */
uint32_t audio_irq_priority; /* PDM audio IRQ priority */
}PDM_RESOURCES;
#endif /* DRIVER_PDM_PRIVATE_H_ */