fxls8962_drv.c

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/*
 * The Clear BSD License
 * Copyright (c) 2016, Freescale Semiconductor, Inc.
 * Copyright 2016-2017 NXP
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted (subject to the limitations in the disclaimer below) provided
 * that the following conditions are met:
 *
 * o Redistributions of source code must retain the above copyright notice, this list
 *   of conditions and the following disclaimer.
 *
 * o 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.
 *
 * o Neither the name of the copyright holder nor the names of its
 *   contributors may be used to endorse or promote products derived from this
 *   software without specific prior written permission.
 *
 * NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED BY THIS LICENSE.
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

/**
 * @file fxls8962_drv.c
 * @brief The fxls8962_drv.c file implements the FXLS8962 sensor driver interfaces.
 */

//-----------------------------------------------------------------------
// ISSDK Includes
//-----------------------------------------------------------------------
#include "gpio_driver.h"
#include "fxls8962_drv.h"
#include "systick_utils.h"

//-----------------------------------------------------------------------
// Global Variables
//-----------------------------------------------------------------------
uint8_t fxls8962_spiRead_CmdBuffer[FXLS8962_SPI_MAX_MSG_SIZE] = {0};
uint8_t fxls8962_spiRead_DataBuffer[FXLS8962_SPI_MAX_MSG_SIZE] = {0};
uint8_t fxls8962_spiWrite_CmdDataBuffer[FXLS8962_SPI_MAX_MSG_SIZE] = {0};

//-----------------------------------------------------------------------
// Functions
//-----------------------------------------------------------------------
void FXLS8962_SPI_ReadPreprocess(void *pCmdOut, uint32_t offset, uint32_t size)
{
    spiCmdParams_t *pSlaveCmd = pCmdOut;

    uint8_t *pWBuff = fxls8962_spiRead_CmdBuffer;
    uint8_t *pRBuff = fxls8962_spiRead_DataBuffer;

    /* Formatting for Read command of FXLS8962 SENSOR. */
    *(pWBuff) = offset | 0x80; /* offset is the internal register address of the sensor at which write is performed. */
    *(pWBuff + 1) = 0x00;

    /* Create the slave read command. */
    pSlaveCmd->size = size + FXLS8962_SPI_CMD_LEN;
    pSlaveCmd->pWriteBuffer = pWBuff;
    pSlaveCmd->pReadBuffer = pRBuff;
}

void FXLS8962_SPI_WritePreprocess(void *pCmdOut, uint32_t offset, uint32_t size, void *pWritebuffer)
{
    spiCmdParams_t *pSlaveCmd = pCmdOut;

    uint8_t *pWBuff = fxls8962_spiWrite_CmdDataBuffer;
    uint8_t *pRBuff = fxls8962_spiWrite_CmdDataBuffer + size + FXLS8962_SPI_CMD_LEN;

    /* Formatting for Write command of FXLS8962 SENSOR. */
    *(pWBuff) = offset & 0x7F; /* offset is the internal register address of the sensor at which write is performed. */
    *(pWBuff + 1) = 0x00;

    /* Copy the slave write command */
    memcpy(pWBuff + FXLS8962_SPI_CMD_LEN, pWritebuffer, size);

    /* Create the slave command. */
    pSlaveCmd->size = size + FXLS8962_SPI_CMD_LEN;
    pSlaveCmd->pWriteBuffer = pWBuff;
    pSlaveCmd->pReadBuffer = pRBuff;
}

int32_t FXLS8962_SPI_Initialize(
    fxls8962_spi_sensorhandle_t *pSensorHandle, ARM_DRIVER_SPI *pBus, uint8_t index, void *pSlaveSelect, uint8_t whoAmi)
{
    int32_t status;
    uint8_t reg;
    GENERIC_DRIVER_GPIO *pGPIODriver = &Driver_GPIO_KSDK;

    /*! Check the input parameters. */
    if ((pSensorHandle == NULL) || (pBus == NULL) || (pSlaveSelect == NULL))
    {
        return SENSOR_ERROR_INVALID_PARAM;
    }

    /*! Initialize the sensor handle. */
    pSensorHandle->pCommDrv = pBus;
    pSensorHandle->slaveParams.pReadPreprocessFN = FXLS8962_SPI_ReadPreprocess;
    pSensorHandle->slaveParams.pWritePreprocessFN = FXLS8962_SPI_WritePreprocess;
    pSensorHandle->slaveParams.pTargetSlavePinID = pSlaveSelect;
    pSensorHandle->slaveParams.spiCmdLen = FXLS8962_SPI_CMD_LEN;
    pSensorHandle->slaveParams.ssActiveValue = FXLS8962_SS_ACTIVE_VALUE;

    pSensorHandle->deviceInfo.deviceInstance = index;
    pSensorHandle->deviceInfo.functionParam = NULL;
    pSensorHandle->deviceInfo.idleFunction = NULL;

    /* Initialize the Slave Select Pin. */
    pGPIODriver->pin_init(pSlaveSelect, GPIO_DIRECTION_OUT, NULL, NULL, NULL);
    if (pSensorHandle->slaveParams.ssActiveValue == SPI_SS_ACTIVE_LOW)
    {
        pGPIODriver->set_pin(pSlaveSelect);
    }
    else
    {
        pGPIODriver->clr_pin(pSlaveSelect);
    }

    /*!  Read and store the device's WHO_AM_I.*/
    status = Register_SPI_Read(pSensorHandle->pCommDrv, &pSensorHandle->deviceInfo, &pSensorHandle->slaveParams,
                               FXLS8962_WHO_AM_I, 1, &reg);
    if ((ARM_DRIVER_OK != status) || (whoAmi != reg))
    {
        pSensorHandle->isInitialized = false;
        return SENSOR_ERROR_INIT;
    }

    pSensorHandle->isInitialized = true;
    return SENSOR_ERROR_NONE;
}

void FXLS8962_SPI_SetIdleTask(fxls8962_spi_sensorhandle_t *pSensorHandle,
                              registeridlefunction_t idleTask,
                              void *userParam)
{
    pSensorHandle->deviceInfo.functionParam = userParam;
    pSensorHandle->deviceInfo.idleFunction = idleTask;
}

int32_t FXLS8962_SPI_Configure(fxls8962_spi_sensorhandle_t *pSensorHandle, const registerwritelist_t *pRegWriteList)
{
    int32_t status;

    /*! Validate for the correct handle and register write list.*/
    if ((pSensorHandle == NULL) || (pRegWriteList == NULL))
    {
        return SENSOR_ERROR_INVALID_PARAM;
    }

    /*! Check whether sensor handle is initialized before applying configuration.*/
    if (pSensorHandle->isInitialized != true)
    {
        return SENSOR_ERROR_INIT;
    }

    /*! Put the device into standby mode so that configuration can be applied.*/
    status = Register_SPI_Write(pSensorHandle->pCommDrv, &pSensorHandle->deviceInfo, &pSensorHandle->slaveParams,
                                FXLS8962_SENS_CONFIG1, FXLS8962_SENS_CONFIG1_ACTIVE_STANDBY,
                                FXLS8962_SENS_CONFIG1_ACTIVE_MASK);
    if (ARM_DRIVER_OK != status)
    {
        return SENSOR_ERROR_WRITE;
    }

    /*! Apply the Sensor Configuration based on the Register Write List */
    status = Sensor_SPI_Write(pSensorHandle->pCommDrv, &pSensorHandle->deviceInfo, &pSensorHandle->slaveParams,
                              pRegWriteList);
    if (ARM_DRIVER_OK != status)
    {
        return SENSOR_ERROR_WRITE;
    }

    /*! Put the device into active mode and ready for reading data.*/
    status = Register_SPI_Write(pSensorHandle->pCommDrv, &pSensorHandle->deviceInfo, &pSensorHandle->slaveParams,
                                FXLS8962_SENS_CONFIG1, FXLS8962_SENS_CONFIG1_ACTIVE_ACTIVE,
                                FXLS8962_SENS_CONFIG1_ACTIVE_MASK);
    if (ARM_DRIVER_OK != status)
    {
        return SENSOR_ERROR_WRITE;
    }

    return SENSOR_ERROR_NONE;
}

int32_t FXLS8962_SPI_ReadData(fxls8962_spi_sensorhandle_t *pSensorHandle,
                              const registerreadlist_t *pReadList,
                              uint8_t *pBuffer)
{
    int32_t status;

    /*! Validate for the correct handle and register read list.*/
    if ((pSensorHandle == NULL) || (pReadList == NULL) || (pBuffer == NULL))
    {
        return SENSOR_ERROR_INVALID_PARAM;
    }

    /*! Check whether sensor handle is initialized before reading sensor data.*/
    if (pSensorHandle->isInitialized != true)
    {
        return SENSOR_ERROR_INIT;
    }

    /*! Parse through the read list and read the data one by one. */
    status = Sensor_SPI_Read(pSensorHandle->pCommDrv, &pSensorHandle->deviceInfo, &pSensorHandle->slaveParams,
                             pReadList, pBuffer);
    if (ARM_DRIVER_OK != status)
    {
        return SENSOR_ERROR_READ;
    }

    return SENSOR_ERROR_NONE;
}

int32_t FXLS8962_SPI_Deinit(fxls8962_spi_sensorhandle_t *pSensorHandle)
{
    int32_t status;

    if (pSensorHandle == NULL)
    {
        return SENSOR_ERROR_INVALID_PARAM;
    }

    /*! Check whether sensor handle is initialized before triggering sensor reset.*/
    if (pSensorHandle->isInitialized != true)
    {
        return SENSOR_ERROR_INIT;
    }

    /*! Trigger sensor device reset.*/
    status = Register_SPI_Write(pSensorHandle->pCommDrv, &pSensorHandle->deviceInfo, &pSensorHandle->slaveParams,
                                FXLS8962_SENS_CONFIG1, FXLS8962_SENS_CONFIG1_RST_RST, FXLS8962_SENS_CONFIG1_RST_MASK);
    if (ARM_DRIVER_OK != status)
    {
        return SENSOR_ERROR_WRITE;
    }
    else
    {
        /*! De-initialize sensor handle. */
        pSensorHandle->isInitialized = false;
    }

    /* Wait for MAX of TBOOT ms after soft reset command,
     * to allow enough time for FXLS8962AF to complete its internal boot sequence and be ready for communication. */
    BOARD_DELAY_ms(FXLS8962_TBOOT_MAX);

    return SENSOR_ERROR_NONE;
}

int32_t FXLS8962_I2C_Initialize(
    fxls8962_i2c_sensorhandle_t *pSensorHandle, ARM_DRIVER_I2C *pBus, uint8_t index, uint16_t sAddress, uint8_t whoAmi)
{
    int32_t status;
    uint8_t reg;

    /*! Check the input parameters. */
    if ((pSensorHandle == NULL) || (pBus == NULL))
    {
        return SENSOR_ERROR_INVALID_PARAM;
    }

    pSensorHandle->deviceInfo.deviceInstance = index;
    pSensorHandle->deviceInfo.functionParam = NULL;
    pSensorHandle->deviceInfo.idleFunction = NULL;

    /*!  Read and store the device's WHO_AM_I.*/
    status = Register_I2C_Read(pBus, &pSensorHandle->deviceInfo, sAddress, FXLS8962_WHO_AM_I, 1, &reg);
    if ((ARM_DRIVER_OK != status) || (whoAmi != reg))
    {
        pSensorHandle->isInitialized = false;
        return SENSOR_ERROR_INIT;
    }

    /*! Initialize the sensor handle. */
    pSensorHandle->pCommDrv = pBus;
    pSensorHandle->slaveAddress = sAddress;
    pSensorHandle->isInitialized = true;
    return SENSOR_ERROR_NONE;
}

void FXLS8962_I2C_SetIdleTask(fxls8962_i2c_sensorhandle_t *pSensorHandle,
                              registeridlefunction_t idleTask,
                              void *userParam)
{
    pSensorHandle->deviceInfo.functionParam = userParam;
    pSensorHandle->deviceInfo.idleFunction = idleTask;
}

int32_t FXLS8962_I2C_Configure(fxls8962_i2c_sensorhandle_t *pSensorHandle, const registerwritelist_t *pRegWriteList)
{
    int32_t status;

    /*! Validate for the correct handle and register write list.*/
    if ((pSensorHandle == NULL) || (pRegWriteList == NULL))
    {
        return SENSOR_ERROR_INVALID_PARAM;
    }

    /*! Check whether sensor handle is initialized before applying configuration.*/
    if (pSensorHandle->isInitialized != true)
    {
        return SENSOR_ERROR_INIT;
    }

    /*! Put the device into standby mode so that configuration can be applied.*/
    status = Register_I2C_Write(pSensorHandle->pCommDrv, &pSensorHandle->deviceInfo, pSensorHandle->slaveAddress,
                                FXLS8962_SENS_CONFIG1, FXLS8962_SENS_CONFIG1_ACTIVE_STANDBY,
                                FXLS8962_SENS_CONFIG1_ACTIVE_MASK, false);
    if (ARM_DRIVER_OK != status)
    {
        return SENSOR_ERROR_WRITE;
    }

    /*! Apply the Sensor Configuration based on the Register Write List */
    status = Sensor_I2C_Write(pSensorHandle->pCommDrv, &pSensorHandle->deviceInfo, pSensorHandle->slaveAddress,
                              pRegWriteList);
    if (ARM_DRIVER_OK != status)
    {
        return SENSOR_ERROR_WRITE;
    }

    /*! Put the device into active mode and ready for reading data.*/
    status = Register_I2C_Write(pSensorHandle->pCommDrv, &pSensorHandle->deviceInfo, pSensorHandle->slaveAddress,
                                FXLS8962_SENS_CONFIG1, FXLS8962_SENS_CONFIG1_ACTIVE_ACTIVE,
                                FXLS8962_SENS_CONFIG1_ACTIVE_MASK, false);
    if (ARM_DRIVER_OK != status)
    {
        return SENSOR_ERROR_WRITE;
    }

    return SENSOR_ERROR_NONE;
}

int32_t FXLS8962_I2C_ReadData(fxls8962_i2c_sensorhandle_t *pSensorHandle,
                              const registerreadlist_t *pReadList,
                              uint8_t *pBuffer)
{
    int32_t status;

    /*! Validate for the correct handle and register read list.*/
    if ((pSensorHandle == NULL) || (pReadList == NULL) || (pBuffer == NULL))
    {
        return SENSOR_ERROR_INVALID_PARAM;
    }

    /*! Check whether sensor handle is initialized before reading sensor data.*/
    if (pSensorHandle->isInitialized != true)
    {
        return SENSOR_ERROR_INIT;
    }

    /*! Parse through the read list and read the data one by one. */
    status = Sensor_I2C_Read(pSensorHandle->pCommDrv, &pSensorHandle->deviceInfo, pSensorHandle->slaveAddress,
                             pReadList, pBuffer);
    if (ARM_DRIVER_OK != status)
    {
        return SENSOR_ERROR_READ;
    }

    return SENSOR_ERROR_NONE;
}

int32_t FXLS8962_I2C_DeInit(fxls8962_i2c_sensorhandle_t *pSensorHandle)
{
    int32_t status;

    if (pSensorHandle == NULL)
    {
        return SENSOR_ERROR_INVALID_PARAM;
    }

    /*! Check whether sensor handle is initialized before triggering sensor reset.*/
    if (pSensorHandle->isInitialized != true)
    {
        return SENSOR_ERROR_INIT;
    }

    /*! Trigger sensor device reset.*/
    status =
        Register_I2C_Write(pSensorHandle->pCommDrv, &pSensorHandle->deviceInfo, pSensorHandle->slaveAddress,
                           FXLS8962_SENS_CONFIG1, FXLS8962_SENS_CONFIG1_RST_RST, FXLS8962_SENS_CONFIG1_RST_MASK, false);
    if (ARM_DRIVER_OK != status)
    {
        return SENSOR_ERROR_WRITE;
    }
    else
    {
        /*! De-initialize sensor handle. */
        pSensorHandle->isInitialized = false;
    }

    /* Wait for MAX of TBOOT ms after soft reset command,
     * to allow enough time for FXLS8962AF to complete its internal boot sequence and be ready for communication. */
    BOARD_DELAY_ms(FXLS8962_TBOOT_MAX);

    return SENSOR_ERROR_NONE;
}