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TARGET_K66F/TOOLCHAIN_IAR/fsl_i2c_edma.h@172:65be27845400, 2019-02-20 (annotated)

Committer:
AnnaBridge
Date:
Wed Feb 20 20:53:29 2019 +0000
Revision:
172:65be27845400
Parent:
171:3a7713b1edbc 
mbed library release version 165

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AnnaBridge 143:86740a56073b 1 /*
AnnaBridge 143:86740a56073b 2 * Copyright (c) 2015, Freescale Semiconductor, Inc.
AnnaBridge 143:86740a56073b 3 * Copyright 2016-2017 NXP
AnnaBridge 143:86740a56073b 4 *
AnnaBridge 143:86740a56073b 5 * Redistribution and use in source and binary forms, with or without modification,
AnnaBridge 143:86740a56073b 6 * are permitted provided that the following conditions are met:
AnnaBridge 143:86740a56073b 7 *
AnnaBridge 143:86740a56073b 8 * o Redistributions of source code must retain the above copyright notice, this list
AnnaBridge 143:86740a56073b 9 * of conditions and the following disclaimer.
AnnaBridge 143:86740a56073b 10 *
AnnaBridge 143:86740a56073b 11 * o Redistributions in binary form must reproduce the above copyright notice, this
AnnaBridge 143:86740a56073b 12 * list of conditions and the following disclaimer in the documentation and/or
AnnaBridge 143:86740a56073b 13 * other materials provided with the distribution.
AnnaBridge 143:86740a56073b 14 *
AnnaBridge 143:86740a56073b 15 * o Neither the name of the copyright holder nor the names of its
AnnaBridge 143:86740a56073b 16 * contributors may be used to endorse or promote products derived from this
AnnaBridge 143:86740a56073b 17 * software without specific prior written permission.
AnnaBridge 143:86740a56073b 18 *
AnnaBridge 143:86740a56073b 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
AnnaBridge 143:86740a56073b 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
AnnaBridge 143:86740a56073b 21 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
AnnaBridge 143:86740a56073b 22 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
AnnaBridge 143:86740a56073b 23 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
AnnaBridge 143:86740a56073b 24 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
AnnaBridge 143:86740a56073b 25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
AnnaBridge 143:86740a56073b 26 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
AnnaBridge 143:86740a56073b 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
AnnaBridge 143:86740a56073b 28 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
AnnaBridge 143:86740a56073b 29 */
AnnaBridge 143:86740a56073b 30 #ifndef _FSL_I2C_DMA_H_
AnnaBridge 143:86740a56073b 31 #define _FSL_I2C_DMA_H_
AnnaBridge 143:86740a56073b 32
AnnaBridge 143:86740a56073b 33 #include "fsl_i2c.h"
AnnaBridge 143:86740a56073b 34 #include "fsl_dmamux.h"
AnnaBridge 143:86740a56073b 35 #include "fsl_edma.h"
AnnaBridge 143:86740a56073b 36
AnnaBridge 143:86740a56073b 37 /*!
AnnaBridge 143:86740a56073b 38 * @addtogroup i2c_edma_driver
AnnaBridge 143:86740a56073b 39 * @{
AnnaBridge 143:86740a56073b 40 */
AnnaBridge 143:86740a56073b 41
AnnaBridge 143:86740a56073b 42 /*******************************************************************************
AnnaBridge 143:86740a56073b 43 * Definitions
AnnaBridge 143:86740a56073b 44 ******************************************************************************/
AnnaBridge 143:86740a56073b 45
AnnaBridge 143:86740a56073b 46 /*! @brief I2C master eDMA handle typedef. */
AnnaBridge 143:86740a56073b 47 typedef struct _i2c_master_edma_handle i2c_master_edma_handle_t;
AnnaBridge 143:86740a56073b 48
AnnaBridge 143:86740a56073b 49 /*! @brief I2C master eDMA transfer callback typedef. */
AnnaBridge 143:86740a56073b 50 typedef void (*i2c_master_edma_transfer_callback_t)(I2C_Type *base,
AnnaBridge 143:86740a56073b 51 i2c_master_edma_handle_t *handle,
AnnaBridge 143:86740a56073b 52 status_t status,
AnnaBridge 143:86740a56073b 53 void *userData);
AnnaBridge 143:86740a56073b 54
AnnaBridge 143:86740a56073b 55 /*! @brief I2C master eDMA transfer structure. */
AnnaBridge 143:86740a56073b 56 struct _i2c_master_edma_handle
AnnaBridge 143:86740a56073b 57 {
AnnaBridge 143:86740a56073b 58 i2c_master_transfer_t transfer; /*!< I2C master transfer structure. */
AnnaBridge 143:86740a56073b 59 size_t transferSize; /*!< Total bytes to be transferred. */
AnnaBridge 143:86740a56073b 60 uint8_t nbytes; /*!< eDMA minor byte transfer count initially configured. */
AnnaBridge 143:86740a56073b 61 uint8_t state; /*!< I2C master transfer status. */
AnnaBridge 143:86740a56073b 62 edma_handle_t *dmaHandle; /*!< The eDMA handler used. */
AnnaBridge 143:86740a56073b 63 i2c_master_edma_transfer_callback_t
AnnaBridge 143:86740a56073b 64 completionCallback; /*!< A callback function called after the eDMA transfer is finished. */
AnnaBridge 143:86740a56073b 65 void *userData; /*!< A callback parameter passed to the callback function. */
AnnaBridge 143:86740a56073b 66 };
AnnaBridge 143:86740a56073b 67
AnnaBridge 143:86740a56073b 68 /*******************************************************************************
AnnaBridge 143:86740a56073b 69 * API
AnnaBridge 143:86740a56073b 70 ******************************************************************************/
AnnaBridge 143:86740a56073b 71
AnnaBridge 143:86740a56073b 72 #if defined(__cplusplus)
AnnaBridge 143:86740a56073b 73 extern "C" {
AnnaBridge 143:86740a56073b 74 #endif /*_cplusplus. */
AnnaBridge 143:86740a56073b 75
AnnaBridge 143:86740a56073b 76 /*!
AnnaBridge 143:86740a56073b 77 * @name I2C Block eDMA Transfer Operation
AnnaBridge 143:86740a56073b 78 * @{
AnnaBridge 143:86740a56073b 79 */
AnnaBridge 143:86740a56073b 80
AnnaBridge 143:86740a56073b 81 /*!
AnnaBridge 143:86740a56073b 82 * @brief Initializes the I2C handle which is used in transcational functions.
AnnaBridge 143:86740a56073b 83 *
AnnaBridge 143:86740a56073b 84 * @param base I2C peripheral base address.
AnnaBridge 143:86740a56073b 85 * @param handle A pointer to the i2c_master_edma_handle_t structure.
AnnaBridge 143:86740a56073b 86 * @param callback A pointer to the user callback function.
AnnaBridge 143:86740a56073b 87 * @param userData A user parameter passed to the callback function.
AnnaBridge 143:86740a56073b 88 * @param edmaHandle eDMA handle pointer.
AnnaBridge 143:86740a56073b 89 */
AnnaBridge 143:86740a56073b 90 void I2C_MasterCreateEDMAHandle(I2C_Type *base,
AnnaBridge 143:86740a56073b 91 i2c_master_edma_handle_t *handle,
AnnaBridge 143:86740a56073b 92 i2c_master_edma_transfer_callback_t callback,
AnnaBridge 143:86740a56073b 93 void *userData,
AnnaBridge 143:86740a56073b 94 edma_handle_t *edmaHandle);
AnnaBridge 143:86740a56073b 95
AnnaBridge 143:86740a56073b 96 /*!
AnnaBridge 143:86740a56073b 97 * @brief Performs a master eDMA non-blocking transfer on the I2C bus.
AnnaBridge 143:86740a56073b 98 *
AnnaBridge 143:86740a56073b 99 * @param base I2C peripheral base address.
AnnaBridge 143:86740a56073b 100 * @param handle A pointer to the i2c_master_edma_handle_t structure.
AnnaBridge 143:86740a56073b 101 * @param xfer A pointer to the transfer structure of i2c_master_transfer_t.
AnnaBridge 143:86740a56073b 102 * @retval kStatus_Success Sucessfully completed the data transmission.
AnnaBridge 143:86740a56073b 103 * @retval kStatus_I2C_Busy A previous transmission is still not finished.
AnnaBridge 143:86740a56073b 104 * @retval kStatus_I2C_Timeout Transfer error, waits for a signal timeout.
AnnaBridge 143:86740a56073b 105 * @retval kStatus_I2C_ArbitrationLost Transfer error, arbitration lost.
AnnaBridge 143:86740a56073b 106 * @retval kStataus_I2C_Nak Transfer error, receive NAK during transfer.
AnnaBridge 143:86740a56073b 107 */
AnnaBridge 143:86740a56073b 108 status_t I2C_MasterTransferEDMA(I2C_Type *base, i2c_master_edma_handle_t *handle, i2c_master_transfer_t *xfer);
AnnaBridge 143:86740a56073b 109
AnnaBridge 143:86740a56073b 110 /*!
AnnaBridge 143:86740a56073b 111 * @brief Gets a master transfer status during the eDMA non-blocking transfer.
AnnaBridge 143:86740a56073b 112 *
AnnaBridge 143:86740a56073b 113 * @param base I2C peripheral base address.
AnnaBridge 143:86740a56073b 114 * @param handle A pointer to the i2c_master_edma_handle_t structure.
AnnaBridge 143:86740a56073b 115 * @param count A number of bytes transferred by the non-blocking transaction.
AnnaBridge 143:86740a56073b 116 */
AnnaBridge 143:86740a56073b 117 status_t I2C_MasterTransferGetCountEDMA(I2C_Type *base, i2c_master_edma_handle_t *handle, size_t *count);
AnnaBridge 143:86740a56073b 118
AnnaBridge 143:86740a56073b 119 /*!
AnnaBridge 143:86740a56073b 120 * @brief Aborts a master eDMA non-blocking transfer early.
AnnaBridge 143:86740a56073b 121 *
AnnaBridge 143:86740a56073b 122 * @param base I2C peripheral base address.
AnnaBridge 143:86740a56073b 123 * @param handle A pointer to the i2c_master_edma_handle_t structure.
AnnaBridge 143:86740a56073b 124 */
AnnaBridge 143:86740a56073b 125 void I2C_MasterTransferAbortEDMA(I2C_Type *base, i2c_master_edma_handle_t *handle);
AnnaBridge 143:86740a56073b 126
AnnaBridge 143:86740a56073b 127 /* @} */
AnnaBridge 143:86740a56073b 128 #if defined(__cplusplus)
AnnaBridge 143:86740a56073b 129 }
AnnaBridge 143:86740a56073b 130 #endif /*_cplusplus. */
AnnaBridge 143:86740a56073b 131 /*@}*/
AnnaBridge 143:86740a56073b 132 #endif /*_FSL_I2C_DMA_H_*/