105 lines
4.7 KiB
C
105 lines
4.7 KiB
C
/*
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* Copyright 2020 NXP
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* All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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/**
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* @file dbap_drv.h
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* @brief The dbap_drv.h file describes the DBAP driver interface and structures.
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*/
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#ifndef DBAP_DRV_H_
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#define DBAP_DRV_H_
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/* Standard C Includes */
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#include <stdint.h>
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/* ISSDK Includes */
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#include "dbap.h"
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#include "sensor_io_i2c.h"
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#include "sensor_io_spi.h"
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#include "register_io_i2c.h"
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#include "register_io_spi.h"
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/*******************************************************************************
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* Definitions
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******************************************************************************/
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/*!
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* @brief This defines the sensor specific information for I2C.
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*/
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typedef struct
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{
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registerDeviceInfo_t deviceInfo; /*!< I2C device context. */
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ARM_DRIVER_I2C *pCommDrv; /*!< Pointer to the i2c driver. */
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bool isInitialized; /*!< whether sensor is intialized or not.*/
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uint16_t slaveAddress; /*!< slave address.*/
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} dbap_i2c_sensorhandle_t;
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/*! @brief This structure defines the dbap data buffer in Pressure Mode.*/
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typedef struct
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{
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uint32_t timestamp; /*!< Time stamp value in micro-seconds. */
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uint16_t pressure; /*!< Sensor pressure output: unsigned 16-bits justified to MSBs. */
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int8_t temperature; /*!< Sensor temperature output; 2's complement 8-bits justified to MSBs. */
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} dbap_pressuredata_t;
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/*******************************************************************************
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* APIs
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******************************************************************************/
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/*! @brief The interface function to initialize the sensor.
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* @details This function initialize the sensor and sensor handle.
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* @param[in] pSensorHandle handle to the sensor.
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* @param[in] pBus pointer to the CMSIS API compatible I2C bus object.
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* @param[in] index the I2C device number.
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* @param[in] sAddress slave address of the device on the bus.
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* @param[in] whoami WHO_AM_I value of the device.
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* @constraints This should be the first API to be called.
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* Application has to ensure that previous instances of these APIs have exited before invocation.
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* @reeentrant No
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* @return ::DBAP_I2C_Initialize() returns the status.
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*/
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int32_t DBAP_I2C_Initialize(
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dbap_i2c_sensorhandle_t *pSensorHandle, ARM_DRIVER_I2C *pBus, uint8_t index, uint16_t sAddress, uint8_t whoAmi);
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/*! @brief : The interface function to set the I2C Idle Task.
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* @param[in] : dbap_i2c_sensorhandle_t *pSensorHandle, handle to the sensor handle.
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* @param[in] : registeridlefunction_t idleTask, function pointer to the function to execute on I2C Idle Time.
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* @param[in] : void *userParam, the pointer to the user idle ftask parameters.
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* @return void.
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* @constraints This can be called any number of times only after DBAP_I2C_Initialize().
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* Application has to ensure that previous instances of these APIs have exited before invocation.
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* @reeentrant No
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*/
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void DBAP_I2C_SetIdleTask(dbap_i2c_sensorhandle_t *pSensorHandle, registeridlefunction_t idleTask, void *userParam);
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/*! @brief The interface function to configure he sensor.
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* @details This function configure the sensor with requested ODR, Range and registers in the regsiter pair array.
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* @param[in] pSensorHandle handle to the sensor.
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* @param[in] pRegWriteList pointer to the register list.
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* @constraints This can be called any number of times only after DBAP_I2C_Initialize().
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* Application has to ensure that previous instances of these APIs have exited before invocation.
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* @reeentrant No
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* @return ::DBAP_I2C_Configure() returns the status.
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*/
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int32_t DBAP_I2C_Configure(dbap_i2c_sensorhandle_t *pSensorHandle, const registerwritelist_t *pRegWriteList);
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/*! @brief The interface function to read the sensor data.
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* @details This function read the sensor data out from the device and returns raw data in a byte stream.
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* @param[in] pSensorHandle handle to the sensor.
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* @param[in] pReadList pointer to the list of device registers and values to read.
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* @param[out] pBuffer buffer which holds raw sensor data.This buffer may be back to back databuffer based
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* command read in the list.
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* @constraints This can be called only after DBAP_I2C_Initialize().
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* Application has to ensure that previous instances of these APIs have exited before invocation.
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* @reeentrant No
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* @return ::DBAP_I2C_ReadData() returns the status .
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*/
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int32_t DBAP_I2C_ReadData(dbap_i2c_sensorhandle_t *pSensorHandle,
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const registerreadlist_t *pReadList,
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uint8_t *pBuffer);
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#endif // DBAP_DRV_H_
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