106 lines
2.7 KiB
C
106 lines
2.7 KiB
C
/*
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* Copyright (c) 2016, Freescale Semiconductor, Inc.
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* Copyright 2016-2019 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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#ifndef FSL_SPI_FREERTOS_H__
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#define FSL_SPI_FREERTOS_H__
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#include "FreeRTOS.h"
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#include "portable.h"
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#include "semphr.h"
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#include "fsl_spi.h"
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/*!
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* @addtogroup spi_freertos_driver
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* @{
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*/
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/*! @file */
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/*******************************************************************************
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* Definitions
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******************************************************************************/
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/*! @name Driver version */
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/*! @{ */
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/*! @brief SPI FreeRTOS driver version 2.1.0. */
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#define FSL_SPI_FREERTOS_DRIVER_VERSION (MAKE_VERSION(2, 1, 0))
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/*! @} */
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/*! @brief SPI FreeRTOS handle */
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typedef struct _spi_rtos_handle
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{
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SPI_Type *base; /*!< SPI base address */
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spi_master_handle_t drv_handle; /*!< Handle of the underlying driver, treated as opaque by the RTOS layer */
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status_t async_status;
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SemaphoreHandle_t mutex; /*!< Mutex to lock the handle during a trasfer */
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SemaphoreHandle_t event; /*!< Semaphore to notify and unblock task when transfer ends */
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} spi_rtos_handle_t;
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/*******************************************************************************
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* API
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******************************************************************************/
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#if defined(__cplusplus)
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extern "C" {
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#endif
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/*!
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* @name SPI RTOS Operation
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* @{
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*/
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/*!
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* @brief Initializes SPI.
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*
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* This function initializes the SPI module and related RTOS context.
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*
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* @param handle The RTOS SPI handle, the pointer to an allocated space for RTOS context.
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* @param base The pointer base address of the SPI instance to initialize.
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* @param masterConfig Configuration structure to set-up SPI in master mode.
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* @param srcClock_Hz Frequency of input clock of the SPI module.
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* @return status of the operation.
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*/
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status_t SPI_RTOS_Init(spi_rtos_handle_t *handle,
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SPI_Type *base,
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const spi_master_config_t *masterConfig,
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uint32_t srcClock_Hz);
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/*!
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* @brief Deinitializes the SPI.
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*
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* This function deinitializes the SPI module and related RTOS context.
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*
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* @param handle The RTOS SPI handle.
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*/
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status_t SPI_RTOS_Deinit(spi_rtos_handle_t *handle);
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/*!
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* @brief Performs SPI transfer.
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*
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* This function performs an SPI transfer according to data given in the transfer structure.
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*
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* @param handle The RTOS SPI handle.
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* @param transfer Structure specifying the transfer parameters.
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* @return status of the operation.
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*/
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status_t SPI_RTOS_Transfer(spi_rtos_handle_t *handle, spi_transfer_t *transfer);
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/*!
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* @}
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*/
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#if defined(__cplusplus)
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}
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#endif
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/*!
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* @}
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*/
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#endif /* FSL_SPI_FREERTOS_H__ */
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