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TARGET_KW41Z/TOOLCHAIN_GCC_ARM/fsl_dspi_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?
User | Revision | Line number | New contents of line |
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AnnaBridge | 145:64910690c574 | 1 | /* |
AnnaBridge | 145:64910690c574 | 2 | * Copyright (c) 2015, Freescale Semiconductor, Inc. |
AnnaBridge | 145:64910690c574 | 3 | * All rights reserved. |
AnnaBridge | 145:64910690c574 | 4 | * |
AnnaBridge | 145:64910690c574 | 5 | * Redistribution and use in source and binary forms, with or without modification, |
AnnaBridge | 145:64910690c574 | 6 | * are permitted provided that the following conditions are met: |
AnnaBridge | 145:64910690c574 | 7 | * |
AnnaBridge | 145:64910690c574 | 8 | * o Redistributions of source code must retain the above copyright notice, this list |
AnnaBridge | 145:64910690c574 | 9 | * of conditions and the following disclaimer. |
AnnaBridge | 145:64910690c574 | 10 | * |
AnnaBridge | 145:64910690c574 | 11 | * o Redistributions in binary form must reproduce the above copyright notice, this |
AnnaBridge | 145:64910690c574 | 12 | * list of conditions and the following disclaimer in the documentation and/or |
AnnaBridge | 145:64910690c574 | 13 | * other materials provided with the distribution. |
AnnaBridge | 145:64910690c574 | 14 | * |
AnnaBridge | 145:64910690c574 | 15 | * o Neither the name of Freescale Semiconductor, Inc. nor the names of its |
AnnaBridge | 145:64910690c574 | 16 | * contributors may be used to endorse or promote products derived from this |
AnnaBridge | 145:64910690c574 | 17 | * software without specific prior written permission. |
AnnaBridge | 145:64910690c574 | 18 | * |
AnnaBridge | 145:64910690c574 | 19 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND |
AnnaBridge | 145:64910690c574 | 20 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
AnnaBridge | 145:64910690c574 | 21 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
AnnaBridge | 145:64910690c574 | 22 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR |
AnnaBridge | 145:64910690c574 | 23 | * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
AnnaBridge | 145:64910690c574 | 24 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
AnnaBridge | 145:64910690c574 | 25 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON |
AnnaBridge | 145:64910690c574 | 26 | * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
AnnaBridge | 145:64910690c574 | 27 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
AnnaBridge | 145:64910690c574 | 28 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
AnnaBridge | 145:64910690c574 | 29 | */ |
AnnaBridge | 145:64910690c574 | 30 | #ifndef _FSL_DSPI_EDMA_H_ |
AnnaBridge | 145:64910690c574 | 31 | #define _FSL_DSPI_EDMA_H_ |
AnnaBridge | 145:64910690c574 | 32 | |
AnnaBridge | 145:64910690c574 | 33 | #include "fsl_dspi.h" |
AnnaBridge | 145:64910690c574 | 34 | #include "fsl_edma.h" |
AnnaBridge | 145:64910690c574 | 35 | /*! |
AnnaBridge | 145:64910690c574 | 36 | * @addtogroup dspi_edma_driver |
AnnaBridge | 145:64910690c574 | 37 | * @{ |
AnnaBridge | 145:64910690c574 | 38 | */ |
AnnaBridge | 145:64910690c574 | 39 | |
AnnaBridge | 145:64910690c574 | 40 | |
AnnaBridge | 145:64910690c574 | 41 | /*********************************************************************************************************************** |
AnnaBridge | 145:64910690c574 | 42 | * Definitions |
AnnaBridge | 145:64910690c574 | 43 | **********************************************************************************************************************/ |
AnnaBridge | 145:64910690c574 | 44 | |
AnnaBridge | 145:64910690c574 | 45 | /*! |
AnnaBridge | 145:64910690c574 | 46 | * @brief Forward declaration of the DSPI eDMA master handle typedefs. |
AnnaBridge | 145:64910690c574 | 47 | */ |
AnnaBridge | 145:64910690c574 | 48 | typedef struct _dspi_master_edma_handle dspi_master_edma_handle_t; |
AnnaBridge | 145:64910690c574 | 49 | |
AnnaBridge | 145:64910690c574 | 50 | /*! |
AnnaBridge | 145:64910690c574 | 51 | * @brief Forward declaration of the DSPI eDMA slave handle typedefs. |
AnnaBridge | 145:64910690c574 | 52 | */ |
AnnaBridge | 145:64910690c574 | 53 | typedef struct _dspi_slave_edma_handle dspi_slave_edma_handle_t; |
AnnaBridge | 145:64910690c574 | 54 | |
AnnaBridge | 145:64910690c574 | 55 | /*! |
AnnaBridge | 145:64910690c574 | 56 | * @brief Completion callback function pointer type. |
AnnaBridge | 145:64910690c574 | 57 | * |
AnnaBridge | 145:64910690c574 | 58 | * @param base DSPI peripheral base address. |
AnnaBridge | 145:64910690c574 | 59 | * @param handle Pointer to the handle for the DSPI master. |
AnnaBridge | 145:64910690c574 | 60 | * @param status Success or error code describing whether the transfer completed. |
AnnaBridge | 145:64910690c574 | 61 | * @param userData Arbitrary pointer-dataSized value passed from the application. |
AnnaBridge | 145:64910690c574 | 62 | */ |
AnnaBridge | 145:64910690c574 | 63 | typedef void (*dspi_master_edma_transfer_callback_t)(SPI_Type *base, |
AnnaBridge | 145:64910690c574 | 64 | dspi_master_edma_handle_t *handle, |
AnnaBridge | 145:64910690c574 | 65 | status_t status, |
AnnaBridge | 145:64910690c574 | 66 | void *userData); |
AnnaBridge | 145:64910690c574 | 67 | /*! |
AnnaBridge | 145:64910690c574 | 68 | * @brief Completion callback function pointer type. |
AnnaBridge | 145:64910690c574 | 69 | * |
AnnaBridge | 145:64910690c574 | 70 | * @param base DSPI peripheral base address. |
AnnaBridge | 145:64910690c574 | 71 | * @param handle Pointer to the handle for the DSPI slave. |
AnnaBridge | 145:64910690c574 | 72 | * @param status Success or error code describing whether the transfer completed. |
AnnaBridge | 145:64910690c574 | 73 | * @param userData Arbitrary pointer-dataSized value passed from the application. |
AnnaBridge | 145:64910690c574 | 74 | */ |
AnnaBridge | 145:64910690c574 | 75 | typedef void (*dspi_slave_edma_transfer_callback_t)(SPI_Type *base, |
AnnaBridge | 145:64910690c574 | 76 | dspi_slave_edma_handle_t *handle, |
AnnaBridge | 145:64910690c574 | 77 | status_t status, |
AnnaBridge | 145:64910690c574 | 78 | void *userData); |
AnnaBridge | 145:64910690c574 | 79 | |
AnnaBridge | 145:64910690c574 | 80 | /*! @brief DSPI master eDMA transfer handle structure used for transactional API. */ |
AnnaBridge | 145:64910690c574 | 81 | struct _dspi_master_edma_handle |
AnnaBridge | 145:64910690c574 | 82 | { |
AnnaBridge | 145:64910690c574 | 83 | uint32_t bitsPerFrame; /*!< Desired number of bits per frame. */ |
AnnaBridge | 145:64910690c574 | 84 | volatile uint32_t command; /*!< Desired data command. */ |
AnnaBridge | 145:64910690c574 | 85 | volatile uint32_t lastCommand; /*!< Desired last data command. */ |
AnnaBridge | 145:64910690c574 | 86 | |
AnnaBridge | 145:64910690c574 | 87 | uint8_t fifoSize; /*!< FIFO dataSize. */ |
AnnaBridge | 145:64910690c574 | 88 | |
AnnaBridge | 145:64910690c574 | 89 | volatile bool isPcsActiveAfterTransfer; /*!< Is PCS signal keep active after the last frame transfer.*/ |
AnnaBridge | 145:64910690c574 | 90 | volatile bool isThereExtraByte; /*!< Is there extra byte.*/ |
AnnaBridge | 145:64910690c574 | 91 | |
AnnaBridge | 145:64910690c574 | 92 | uint8_t *volatile txData; /*!< Send buffer. */ |
AnnaBridge | 145:64910690c574 | 93 | uint8_t *volatile rxData; /*!< Receive buffer. */ |
AnnaBridge | 145:64910690c574 | 94 | volatile size_t remainingSendByteCount; /*!< Number of bytes remaining to send.*/ |
AnnaBridge | 145:64910690c574 | 95 | volatile size_t remainingReceiveByteCount; /*!< Number of bytes remaining to receive.*/ |
AnnaBridge | 145:64910690c574 | 96 | size_t totalByteCount; /*!< Number of transfer bytes*/ |
AnnaBridge | 145:64910690c574 | 97 | |
AnnaBridge | 145:64910690c574 | 98 | uint32_t rxBuffIfNull; /*!< Used if there is not rxData for DMA purpose.*/ |
AnnaBridge | 145:64910690c574 | 99 | uint32_t txBuffIfNull; /*!< Used if there is not txData for DMA purpose.*/ |
AnnaBridge | 145:64910690c574 | 100 | |
AnnaBridge | 145:64910690c574 | 101 | volatile uint8_t state; /*!< DSPI transfer state , _dspi_transfer_state.*/ |
AnnaBridge | 145:64910690c574 | 102 | |
AnnaBridge | 145:64910690c574 | 103 | dspi_master_edma_transfer_callback_t callback; /*!< Completion callback. */ |
AnnaBridge | 145:64910690c574 | 104 | void *userData; /*!< Callback user data. */ |
AnnaBridge | 145:64910690c574 | 105 | |
AnnaBridge | 145:64910690c574 | 106 | edma_handle_t *edmaRxRegToRxDataHandle; /*!<edma_handle_t handle point used for RxReg to RxData buff*/ |
AnnaBridge | 145:64910690c574 | 107 | edma_handle_t *edmaTxDataToIntermediaryHandle; /*!<edma_handle_t handle point used for TxData to Intermediary*/ |
AnnaBridge | 145:64910690c574 | 108 | edma_handle_t *edmaIntermediaryToTxRegHandle; /*!<edma_handle_t handle point used for Intermediary to TxReg*/ |
AnnaBridge | 145:64910690c574 | 109 | |
AnnaBridge | 145:64910690c574 | 110 | edma_tcd_t dspiSoftwareTCD[2]; /*!<SoftwareTCD , internal used*/ |
AnnaBridge | 145:64910690c574 | 111 | }; |
AnnaBridge | 145:64910690c574 | 112 | |
AnnaBridge | 145:64910690c574 | 113 | /*! @brief DSPI slave eDMA transfer handle structure used for transactional API.*/ |
AnnaBridge | 145:64910690c574 | 114 | struct _dspi_slave_edma_handle |
AnnaBridge | 145:64910690c574 | 115 | { |
AnnaBridge | 145:64910690c574 | 116 | uint32_t bitsPerFrame; /*!< Desired number of bits per frame. */ |
AnnaBridge | 145:64910690c574 | 117 | volatile bool isThereExtraByte; /*!< Is there extra byte.*/ |
AnnaBridge | 145:64910690c574 | 118 | |
AnnaBridge | 145:64910690c574 | 119 | uint8_t *volatile txData; /*!< Send buffer. */ |
AnnaBridge | 145:64910690c574 | 120 | uint8_t *volatile rxData; /*!< Receive buffer. */ |
AnnaBridge | 145:64910690c574 | 121 | volatile size_t remainingSendByteCount; /*!< Number of bytes remaining to send.*/ |
AnnaBridge | 145:64910690c574 | 122 | volatile size_t remainingReceiveByteCount; /*!< Number of bytes remaining to receive.*/ |
AnnaBridge | 145:64910690c574 | 123 | size_t totalByteCount; /*!< Number of transfer bytes*/ |
AnnaBridge | 145:64910690c574 | 124 | |
AnnaBridge | 145:64910690c574 | 125 | uint32_t rxBuffIfNull; /*!< Used if there is not rxData for DMA purpose.*/ |
AnnaBridge | 145:64910690c574 | 126 | uint32_t txBuffIfNull; /*!< Used if there is not txData for DMA purpose.*/ |
AnnaBridge | 145:64910690c574 | 127 | uint32_t txLastData; /*!< Used if there is an extra byte when 16bits per frame for DMA purpose.*/ |
AnnaBridge | 145:64910690c574 | 128 | |
AnnaBridge | 145:64910690c574 | 129 | volatile uint8_t state; /*!< DSPI transfer state.*/ |
AnnaBridge | 145:64910690c574 | 130 | |
AnnaBridge | 145:64910690c574 | 131 | uint32_t errorCount; /*!< Error count for slave transfer.*/ |
AnnaBridge | 145:64910690c574 | 132 | |
AnnaBridge | 145:64910690c574 | 133 | dspi_slave_edma_transfer_callback_t callback; /*!< Completion callback. */ |
AnnaBridge | 145:64910690c574 | 134 | void *userData; /*!< Callback user data. */ |
AnnaBridge | 145:64910690c574 | 135 | |
AnnaBridge | 145:64910690c574 | 136 | edma_handle_t *edmaRxRegToRxDataHandle; /*!<edma_handle_t handle point used for RxReg to RxData buff*/ |
AnnaBridge | 145:64910690c574 | 137 | edma_handle_t *edmaTxDataToTxRegHandle; /*!<edma_handle_t handle point used for TxData to TxReg*/ |
AnnaBridge | 145:64910690c574 | 138 | |
AnnaBridge | 145:64910690c574 | 139 | edma_tcd_t dspiSoftwareTCD[2]; /*!<SoftwareTCD , internal used*/ |
AnnaBridge | 145:64910690c574 | 140 | }; |
AnnaBridge | 145:64910690c574 | 141 | |
AnnaBridge | 145:64910690c574 | 142 | /*********************************************************************************************************************** |
AnnaBridge | 145:64910690c574 | 143 | * API |
AnnaBridge | 145:64910690c574 | 144 | **********************************************************************************************************************/ |
AnnaBridge | 145:64910690c574 | 145 | #if defined(__cplusplus) |
AnnaBridge | 145:64910690c574 | 146 | extern "C" { |
AnnaBridge | 145:64910690c574 | 147 | #endif /*_cplusplus*/ |
AnnaBridge | 145:64910690c574 | 148 | |
AnnaBridge | 145:64910690c574 | 149 | /*Transactional APIs*/ |
AnnaBridge | 145:64910690c574 | 150 | |
AnnaBridge | 145:64910690c574 | 151 | /*! |
AnnaBridge | 145:64910690c574 | 152 | * @brief Initializes the DSPI master eDMA handle. |
AnnaBridge | 145:64910690c574 | 153 | * |
AnnaBridge | 145:64910690c574 | 154 | * This function initializes the DSPI eDMA handle which can be used for other DSPI transactional APIs. Usually, for a |
AnnaBridge | 145:64910690c574 | 155 | * specified DSPI instance, user need only call this API once to get the initialized handle. |
AnnaBridge | 145:64910690c574 | 156 | * |
AnnaBridge | 145:64910690c574 | 157 | * Note that DSPI eDMA has separated (RX and TX as two sources) or shared (RX and TX are the same source) DMA request source. |
AnnaBridge | 145:64910690c574 | 158 | * (1)For the separated DMA request source, enable and set the RX DMAMUX source for edmaRxRegToRxDataHandle and |
AnnaBridge | 145:64910690c574 | 159 | * TX DMAMUX source for edmaIntermediaryToTxRegHandle. |
AnnaBridge | 145:64910690c574 | 160 | * (2)For the shared DMA request source, enable and set the RX/RX DMAMUX source for the edmaRxRegToRxDataHandle. |
AnnaBridge | 145:64910690c574 | 161 | * |
AnnaBridge | 145:64910690c574 | 162 | * @param base DSPI peripheral base address. |
AnnaBridge | 145:64910690c574 | 163 | * @param handle DSPI handle pointer to dspi_master_edma_handle_t. |
AnnaBridge | 145:64910690c574 | 164 | * @param callback DSPI callback. |
AnnaBridge | 145:64910690c574 | 165 | * @param userData callback function parameter. |
AnnaBridge | 145:64910690c574 | 166 | * @param edmaRxRegToRxDataHandle edmaRxRegToRxDataHandle pointer to edma_handle_t. |
AnnaBridge | 145:64910690c574 | 167 | * @param edmaTxDataToIntermediaryHandle edmaTxDataToIntermediaryHandle pointer to edma_handle_t. |
AnnaBridge | 145:64910690c574 | 168 | * @param edmaIntermediaryToTxRegHandle edmaIntermediaryToTxRegHandle pointer to edma_handle_t. |
AnnaBridge | 145:64910690c574 | 169 | */ |
AnnaBridge | 145:64910690c574 | 170 | void DSPI_MasterTransferCreateHandleEDMA(SPI_Type *base, |
AnnaBridge | 145:64910690c574 | 171 | dspi_master_edma_handle_t *handle, |
AnnaBridge | 145:64910690c574 | 172 | dspi_master_edma_transfer_callback_t callback, |
AnnaBridge | 145:64910690c574 | 173 | void *userData, |
AnnaBridge | 145:64910690c574 | 174 | edma_handle_t *edmaRxRegToRxDataHandle, |
AnnaBridge | 145:64910690c574 | 175 | edma_handle_t *edmaTxDataToIntermediaryHandle, |
AnnaBridge | 145:64910690c574 | 176 | edma_handle_t *edmaIntermediaryToTxRegHandle); |
AnnaBridge | 145:64910690c574 | 177 | |
AnnaBridge | 145:64910690c574 | 178 | /*! |
AnnaBridge | 145:64910690c574 | 179 | * @brief DSPI master transfer data using eDMA. |
AnnaBridge | 145:64910690c574 | 180 | * |
AnnaBridge | 145:64910690c574 | 181 | * This function transfer data using eDMA. This is non-blocking function, which returns right away. When all data |
AnnaBridge | 145:64910690c574 | 182 | * have been transfer, the callback function is called. |
AnnaBridge | 145:64910690c574 | 183 | * |
AnnaBridge | 145:64910690c574 | 184 | * @param base DSPI peripheral base address. |
AnnaBridge | 145:64910690c574 | 185 | * @param handle pointer to dspi_master_edma_handle_t structure which stores the transfer state. |
AnnaBridge | 145:64910690c574 | 186 | * @param transfer pointer to dspi_transfer_t structure. |
AnnaBridge | 145:64910690c574 | 187 | * @return status of status_t. |
AnnaBridge | 145:64910690c574 | 188 | */ |
AnnaBridge | 145:64910690c574 | 189 | status_t DSPI_MasterTransferEDMA(SPI_Type *base, dspi_master_edma_handle_t *handle, dspi_transfer_t *transfer); |
AnnaBridge | 145:64910690c574 | 190 | |
AnnaBridge | 145:64910690c574 | 191 | /*! |
AnnaBridge | 145:64910690c574 | 192 | * @brief DSPI master aborts a transfer which using eDMA. |
AnnaBridge | 145:64910690c574 | 193 | * |
AnnaBridge | 145:64910690c574 | 194 | * This function aborts a transfer which using eDMA. |
AnnaBridge | 145:64910690c574 | 195 | * |
AnnaBridge | 145:64910690c574 | 196 | * @param base DSPI peripheral base address. |
AnnaBridge | 145:64910690c574 | 197 | * @param handle pointer to dspi_master_edma_handle_t structure which stores the transfer state. |
AnnaBridge | 145:64910690c574 | 198 | */ |
AnnaBridge | 145:64910690c574 | 199 | void DSPI_MasterTransferAbortEDMA(SPI_Type *base, dspi_master_edma_handle_t *handle); |
AnnaBridge | 145:64910690c574 | 200 | |
AnnaBridge | 145:64910690c574 | 201 | /*! |
AnnaBridge | 145:64910690c574 | 202 | * @brief Gets the master eDMA transfer count. |
AnnaBridge | 145:64910690c574 | 203 | * |
AnnaBridge | 145:64910690c574 | 204 | * This function get the master eDMA transfer count. |
AnnaBridge | 145:64910690c574 | 205 | * |
AnnaBridge | 145:64910690c574 | 206 | * @param base DSPI peripheral base address. |
AnnaBridge | 145:64910690c574 | 207 | * @param handle pointer to dspi_master_edma_handle_t structure which stores the transfer state. |
AnnaBridge | 145:64910690c574 | 208 | * @param count Number of bytes transferred so far by the non-blocking transaction. |
AnnaBridge | 145:64910690c574 | 209 | * @return status of status_t. |
AnnaBridge | 145:64910690c574 | 210 | */ |
AnnaBridge | 145:64910690c574 | 211 | status_t DSPI_MasterTransferGetCountEDMA(SPI_Type *base, dspi_master_edma_handle_t *handle, size_t *count); |
AnnaBridge | 145:64910690c574 | 212 | |
AnnaBridge | 145:64910690c574 | 213 | /*! |
AnnaBridge | 145:64910690c574 | 214 | * @brief Initializes the DSPI slave eDMA handle. |
AnnaBridge | 145:64910690c574 | 215 | * |
AnnaBridge | 145:64910690c574 | 216 | * This function initializes the DSPI eDMA handle which can be used for other DSPI transactional APIs. Usually, for a |
AnnaBridge | 145:64910690c574 | 217 | * specified DSPI instance, call this API once to get the initialized handle. |
AnnaBridge | 145:64910690c574 | 218 | * |
AnnaBridge | 145:64910690c574 | 219 | * Note that DSPI eDMA has separated (RN and TX in 2 sources) or shared (RX and TX are the same source) DMA request source. |
AnnaBridge | 145:64910690c574 | 220 | * (1)For the separated DMA request source, enable and set the RX DMAMUX source for edmaRxRegToRxDataHandle and |
AnnaBridge | 145:64910690c574 | 221 | * TX DMAMUX source for edmaTxDataToTxRegHandle. |
AnnaBridge | 145:64910690c574 | 222 | * (2)For the shared DMA request source, enable and set the RX/RX DMAMUX source for the edmaRxRegToRxDataHandle. |
AnnaBridge | 145:64910690c574 | 223 | * |
AnnaBridge | 145:64910690c574 | 224 | * @param base DSPI peripheral base address. |
AnnaBridge | 145:64910690c574 | 225 | * @param handle DSPI handle pointer to dspi_slave_edma_handle_t. |
AnnaBridge | 145:64910690c574 | 226 | * @param callback DSPI callback. |
AnnaBridge | 145:64910690c574 | 227 | * @param userData callback function parameter. |
AnnaBridge | 145:64910690c574 | 228 | * @param edmaRxRegToRxDataHandle edmaRxRegToRxDataHandle pointer to edma_handle_t. |
AnnaBridge | 145:64910690c574 | 229 | * @param edmaTxDataToTxRegHandle edmaTxDataToTxRegHandle pointer to edma_handle_t. |
AnnaBridge | 145:64910690c574 | 230 | */ |
AnnaBridge | 145:64910690c574 | 231 | void DSPI_SlaveTransferCreateHandleEDMA(SPI_Type *base, |
AnnaBridge | 145:64910690c574 | 232 | dspi_slave_edma_handle_t *handle, |
AnnaBridge | 145:64910690c574 | 233 | dspi_slave_edma_transfer_callback_t callback, |
AnnaBridge | 145:64910690c574 | 234 | void *userData, |
AnnaBridge | 145:64910690c574 | 235 | edma_handle_t *edmaRxRegToRxDataHandle, |
AnnaBridge | 145:64910690c574 | 236 | edma_handle_t *edmaTxDataToTxRegHandle); |
AnnaBridge | 145:64910690c574 | 237 | |
AnnaBridge | 145:64910690c574 | 238 | /*! |
AnnaBridge | 145:64910690c574 | 239 | * @brief DSPI slave transfer data using eDMA. |
AnnaBridge | 145:64910690c574 | 240 | * |
AnnaBridge | 145:64910690c574 | 241 | * This function transfer data using eDMA. This is non-blocking function, which returns right away. When all data |
AnnaBridge | 145:64910690c574 | 242 | * have been transfer, the callback function is called. |
AnnaBridge | 145:64910690c574 | 243 | * Note that slave EDMA transfer cannot support the situation that transfer_size is 1 when the bitsPerFrame is greater |
AnnaBridge | 145:64910690c574 | 244 | * than 8 . |
AnnaBridge | 145:64910690c574 | 245 | |
AnnaBridge | 145:64910690c574 | 246 | * @param base DSPI peripheral base address. |
AnnaBridge | 145:64910690c574 | 247 | * @param handle pointer to dspi_slave_edma_handle_t structure which stores the transfer state. |
AnnaBridge | 145:64910690c574 | 248 | * @param transfer pointer to dspi_transfer_t structure. |
AnnaBridge | 145:64910690c574 | 249 | * @return status of status_t. |
AnnaBridge | 145:64910690c574 | 250 | */ |
AnnaBridge | 145:64910690c574 | 251 | status_t DSPI_SlaveTransferEDMA(SPI_Type *base, dspi_slave_edma_handle_t *handle, dspi_transfer_t *transfer); |
AnnaBridge | 145:64910690c574 | 252 | |
AnnaBridge | 145:64910690c574 | 253 | /*! |
AnnaBridge | 145:64910690c574 | 254 | * @brief DSPI slave aborts a transfer which using eDMA. |
AnnaBridge | 145:64910690c574 | 255 | * |
AnnaBridge | 145:64910690c574 | 256 | * This function aborts a transfer which using eDMA. |
AnnaBridge | 145:64910690c574 | 257 | * |
AnnaBridge | 145:64910690c574 | 258 | * @param base DSPI peripheral base address. |
AnnaBridge | 145:64910690c574 | 259 | * @param handle pointer to dspi_slave_edma_handle_t structure which stores the transfer state. |
AnnaBridge | 145:64910690c574 | 260 | */ |
AnnaBridge | 145:64910690c574 | 261 | void DSPI_SlaveTransferAbortEDMA(SPI_Type *base, dspi_slave_edma_handle_t *handle); |
AnnaBridge | 145:64910690c574 | 262 | |
AnnaBridge | 145:64910690c574 | 263 | /*! |
AnnaBridge | 145:64910690c574 | 264 | * @brief Gets the slave eDMA transfer count. |
AnnaBridge | 145:64910690c574 | 265 | * |
AnnaBridge | 145:64910690c574 | 266 | * This function gets the slave eDMA transfer count. |
AnnaBridge | 145:64910690c574 | 267 | * |
AnnaBridge | 145:64910690c574 | 268 | * @param base DSPI peripheral base address. |
AnnaBridge | 145:64910690c574 | 269 | * @param handle pointer to dspi_slave_edma_handle_t structure which stores the transfer state. |
AnnaBridge | 145:64910690c574 | 270 | * @param count Number of bytes transferred so far by the non-blocking transaction. |
AnnaBridge | 145:64910690c574 | 271 | * @return status of status_t. |
AnnaBridge | 145:64910690c574 | 272 | */ |
AnnaBridge | 145:64910690c574 | 273 | status_t DSPI_SlaveTransferGetCountEDMA(SPI_Type *base, dspi_slave_edma_handle_t *handle, size_t *count); |
AnnaBridge | 145:64910690c574 | 274 | |
AnnaBridge | 145:64910690c574 | 275 | #if defined(__cplusplus) |
AnnaBridge | 145:64910690c574 | 276 | } |
AnnaBridge | 145:64910690c574 | 277 | #endif /*_cplusplus*/ |
AnnaBridge | 145:64910690c574 | 278 | /*! |
AnnaBridge | 145:64910690c574 | 279 | *@} |
AnnaBridge | 145:64910690c574 | 280 | */ |
AnnaBridge | 145:64910690c574 | 281 | |
AnnaBridge | 145:64910690c574 | 282 | #endif /*_FSL_DSPI_EDMA_H_*/ |