Johannes Stratmann / mbed-dev

added prescaler for 16 bit pwm in LPC1347 target

Fork of mbed-dev by mbed official

targets/hal/TARGET_Freescale/TARGET_KSDK2_MCUS/TARGET_KL43Z/drivers/fsl_spi_dma.h@147:ba84b7dc41a7, 2016-09-10 (annotated)

Committer:
JojoS
Date:
Sat Sep 10 15:32:04 2016 +0000
Revision:
147:ba84b7dc41a7
Parent:
144:ef7eb2e8f9f7 
added prescaler for 16 bit timers (solution as in LPC11xx), default prescaler 31 for max 28 ms period time

Who changed what in which revision?

UserRevisionLine numberNew contents of line
<> 144:ef7eb2e8f9f7 1 /*
<> 144:ef7eb2e8f9f7 2 * Copyright (c) 2015, Freescale Semiconductor, Inc.
<> 144:ef7eb2e8f9f7 3 * All rights reserved.
<> 144:ef7eb2e8f9f7 4 *
<> 144:ef7eb2e8f9f7 5 * Redistribution and use in source and binary forms, with or without modification,
<> 144:ef7eb2e8f9f7 6 * are permitted provided that the following conditions are met:
<> 144:ef7eb2e8f9f7 7 *
<> 144:ef7eb2e8f9f7 8 * o Redistributions of source code must retain the above copyright notice, this list
<> 144:ef7eb2e8f9f7 9 * of conditions and the following disclaimer.
<> 144:ef7eb2e8f9f7 10 *
<> 144:ef7eb2e8f9f7 11 * o Redistributions in binary form must reproduce the above copyright notice, this
<> 144:ef7eb2e8f9f7 12 * list of conditions and the following disclaimer in the documentation and/or
<> 144:ef7eb2e8f9f7 13 * other materials provided with the distribution.
<> 144:ef7eb2e8f9f7 14 *
<> 144:ef7eb2e8f9f7 15 * o Neither the name of Freescale Semiconductor, Inc. nor the names of its
<> 144:ef7eb2e8f9f7 16 * contributors may be used to endorse or promote products derived from this
<> 144:ef7eb2e8f9f7 17 * software without specific prior written permission.
<> 144:ef7eb2e8f9f7 18 *
<> 144:ef7eb2e8f9f7 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
<> 144:ef7eb2e8f9f7 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
<> 144:ef7eb2e8f9f7 21 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
<> 144:ef7eb2e8f9f7 22 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
<> 144:ef7eb2e8f9f7 23 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
<> 144:ef7eb2e8f9f7 24 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
<> 144:ef7eb2e8f9f7 25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
<> 144:ef7eb2e8f9f7 26 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
<> 144:ef7eb2e8f9f7 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
<> 144:ef7eb2e8f9f7 28 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
<> 144:ef7eb2e8f9f7 29 */
<> 144:ef7eb2e8f9f7 30 #ifndef _FSL_SPI_DMA_H_
<> 144:ef7eb2e8f9f7 31 #define _FSL_SPI_DMA_H_
<> 144:ef7eb2e8f9f7 32
<> 144:ef7eb2e8f9f7 33 #include "fsl_spi.h"
<> 144:ef7eb2e8f9f7 34 #include "fsl_dma.h"
<> 144:ef7eb2e8f9f7 35
<> 144:ef7eb2e8f9f7 36 /*!
<> 144:ef7eb2e8f9f7 37 * @addtogroup spi_dma_driver
<> 144:ef7eb2e8f9f7 38 * @{
<> 144:ef7eb2e8f9f7 39 */
<> 144:ef7eb2e8f9f7 40
<> 144:ef7eb2e8f9f7 41
<> 144:ef7eb2e8f9f7 42 /*******************************************************************************
<> 144:ef7eb2e8f9f7 43 * Definitions
<> 144:ef7eb2e8f9f7 44 ******************************************************************************/
<> 144:ef7eb2e8f9f7 45
<> 144:ef7eb2e8f9f7 46 typedef struct _spi_dma_handle spi_dma_handle_t;
<> 144:ef7eb2e8f9f7 47
<> 144:ef7eb2e8f9f7 48 /*! @brief SPI DMA callback called at the end of transfer. */
<> 144:ef7eb2e8f9f7 49 typedef void (*spi_dma_callback_t)(SPI_Type *base, spi_dma_handle_t *handle, status_t status, void *userData);
<> 144:ef7eb2e8f9f7 50
<> 144:ef7eb2e8f9f7 51 /*! @brief SPI DMA transfer handle, users should not touch the content of the handle.*/
<> 144:ef7eb2e8f9f7 52 struct _spi_dma_handle
<> 144:ef7eb2e8f9f7 53 {
<> 144:ef7eb2e8f9f7 54 bool txInProgress; /*!< Send transfer finished */
<> 144:ef7eb2e8f9f7 55 bool rxInProgress; /*!< Receive transfer finished */
<> 144:ef7eb2e8f9f7 56 dma_handle_t *txHandle; /*!< DMA handler for SPI send */
<> 144:ef7eb2e8f9f7 57 dma_handle_t *rxHandle; /*!< DMA handler for SPI receive */
<> 144:ef7eb2e8f9f7 58 uint8_t bytesPerFrame; /*!< Bytes in a frame for SPI tranfer */
<> 144:ef7eb2e8f9f7 59 spi_dma_callback_t callback; /*!< Callback for SPI DMA transfer */
<> 144:ef7eb2e8f9f7 60 void *userData; /*!< User Data for SPI DMA callback */
<> 144:ef7eb2e8f9f7 61 uint32_t state; /*!< Internal state of SPI DMA transfer */
<> 144:ef7eb2e8f9f7 62 size_t transferSize; /*!< Bytes need to be transfer */
<> 144:ef7eb2e8f9f7 63 };
<> 144:ef7eb2e8f9f7 64
<> 144:ef7eb2e8f9f7 65 /*******************************************************************************
<> 144:ef7eb2e8f9f7 66 * APIs
<> 144:ef7eb2e8f9f7 67 ******************************************************************************/
<> 144:ef7eb2e8f9f7 68 #if defined(__cplusplus)
<> 144:ef7eb2e8f9f7 69 extern "C" {
<> 144:ef7eb2e8f9f7 70 #endif
<> 144:ef7eb2e8f9f7 71
<> 144:ef7eb2e8f9f7 72 /*!
<> 144:ef7eb2e8f9f7 73 * @name DMA Transactional
<> 144:ef7eb2e8f9f7 74 * @{
<> 144:ef7eb2e8f9f7 75 */
<> 144:ef7eb2e8f9f7 76
<> 144:ef7eb2e8f9f7 77 /*!
<> 144:ef7eb2e8f9f7 78 * @brief Initialize the SPI master DMA handle.
<> 144:ef7eb2e8f9f7 79 *
<> 144:ef7eb2e8f9f7 80 * This function initializes the SPI master DMA handle which can be used for other SPI master transactional APIs.
<> 144:ef7eb2e8f9f7 81 * Usually, for a specified SPI instance, user need only call this API once to get the initialized handle.
<> 144:ef7eb2e8f9f7 82 *
<> 144:ef7eb2e8f9f7 83 * @param base SPI peripheral base address.
<> 144:ef7eb2e8f9f7 84 * @param handle SPI handle pointer.
<> 144:ef7eb2e8f9f7 85 * @param callback User callback function called at the end of a transfer.
<> 144:ef7eb2e8f9f7 86 * @param userData User data for callback.
<> 144:ef7eb2e8f9f7 87 * @param txHandle DMA handle pointer for SPI Tx, the handle shall be static allocated by users.
<> 144:ef7eb2e8f9f7 88 * @param rxHandle DMA handle pointer for SPI Rx, the handle shall be static allocated by users.
<> 144:ef7eb2e8f9f7 89 */
<> 144:ef7eb2e8f9f7 90 void SPI_MasterTransferCreateHandleDMA(SPI_Type *base,
<> 144:ef7eb2e8f9f7 91 spi_dma_handle_t *handle,
<> 144:ef7eb2e8f9f7 92 spi_dma_callback_t callback,
<> 144:ef7eb2e8f9f7 93 void *userData,
<> 144:ef7eb2e8f9f7 94 dma_handle_t *txHandle,
<> 144:ef7eb2e8f9f7 95 dma_handle_t *rxHandle);
<> 144:ef7eb2e8f9f7 96
<> 144:ef7eb2e8f9f7 97 /*!
<> 144:ef7eb2e8f9f7 98 * @brief Perform a non-blocking SPI transfer using DMA.
<> 144:ef7eb2e8f9f7 99 *
<> 144:ef7eb2e8f9f7 100 * @note This interface returned immediately after transfer initiates, users should call
<> 144:ef7eb2e8f9f7 101 * SPI_GetTransferStatus to poll the transfer status to check whether SPI transfer finished.
<> 144:ef7eb2e8f9f7 102 *
<> 144:ef7eb2e8f9f7 103 * @param base SPI peripheral base address.
<> 144:ef7eb2e8f9f7 104 * @param handle SPI DMA handle pointer.
<> 144:ef7eb2e8f9f7 105 * @param xfer Pointer to dma transfer structure.
<> 144:ef7eb2e8f9f7 106 * @retval kStatus_Success Successfully start a transfer.
<> 144:ef7eb2e8f9f7 107 * @retval kStatus_InvalidArgument Input argument is invalid.
<> 144:ef7eb2e8f9f7 108 * @retval kStatus_SPI_Busy SPI is not idle, is running another transfer.
<> 144:ef7eb2e8f9f7 109 */
<> 144:ef7eb2e8f9f7 110 status_t SPI_MasterTransferDMA(SPI_Type *base, spi_dma_handle_t *handle, spi_transfer_t *xfer);
<> 144:ef7eb2e8f9f7 111
<> 144:ef7eb2e8f9f7 112 /*!
<> 144:ef7eb2e8f9f7 113 * @brief Abort a SPI transfer using DMA.
<> 144:ef7eb2e8f9f7 114 *
<> 144:ef7eb2e8f9f7 115 * @param base SPI peripheral base address.
<> 144:ef7eb2e8f9f7 116 * @param handle SPI DMA handle pointer.
<> 144:ef7eb2e8f9f7 117 */
<> 144:ef7eb2e8f9f7 118 void SPI_MasterTransferAbortDMA(SPI_Type *base, spi_dma_handle_t *handle);
<> 144:ef7eb2e8f9f7 119
<> 144:ef7eb2e8f9f7 120 /*!
<> 144:ef7eb2e8f9f7 121 * @brief Get the transferred bytes for SPI slave DMA.
<> 144:ef7eb2e8f9f7 122 *
<> 144:ef7eb2e8f9f7 123 * @param base SPI peripheral base address.
<> 144:ef7eb2e8f9f7 124 * @param handle SPI DMA handle pointer.
<> 144:ef7eb2e8f9f7 125 * @param count Transferred bytes.
<> 144:ef7eb2e8f9f7 126 * @retval kStatus_SPI_Success Succeed get the transfer count.
<> 144:ef7eb2e8f9f7 127 * @retval kStatus_NoTransferInProgress There is not a non-blocking transaction currently in progress.
<> 144:ef7eb2e8f9f7 128 */
<> 144:ef7eb2e8f9f7 129 status_t SPI_MasterTransferGetCountDMA(SPI_Type *base, spi_dma_handle_t *handle, size_t *count);
<> 144:ef7eb2e8f9f7 130
<> 144:ef7eb2e8f9f7 131 /*!
<> 144:ef7eb2e8f9f7 132 * @brief Initialize the SPI slave DMA handle.
<> 144:ef7eb2e8f9f7 133 *
<> 144:ef7eb2e8f9f7 134 * This function initializes the SPI slave DMA handle which can be used for other SPI master transactional APIs.
<> 144:ef7eb2e8f9f7 135 * Usually, for a specified SPI instance, user need only call this API once to get the initialized handle.
<> 144:ef7eb2e8f9f7 136 *
<> 144:ef7eb2e8f9f7 137 * @param base SPI peripheral base address.
<> 144:ef7eb2e8f9f7 138 * @param handle SPI handle pointer.
<> 144:ef7eb2e8f9f7 139 * @param callback User callback function called at the end of a transfer.
<> 144:ef7eb2e8f9f7 140 * @param userData User data for callback.
<> 144:ef7eb2e8f9f7 141 * @param txHandle DMA handle pointer for SPI Tx, the handle shall be static allocated by users.
<> 144:ef7eb2e8f9f7 142 * @param rxHandle DMA handle pointer for SPI Rx, the handle shall be static allocated by users.
<> 144:ef7eb2e8f9f7 143 */
<> 144:ef7eb2e8f9f7 144 static inline void SPI_SlaveTransferCreateHandleDMA(SPI_Type *base,
<> 144:ef7eb2e8f9f7 145 spi_dma_handle_t *handle,
<> 144:ef7eb2e8f9f7 146 spi_dma_callback_t callback,
<> 144:ef7eb2e8f9f7 147 void *userData,
<> 144:ef7eb2e8f9f7 148 dma_handle_t *txHandle,
<> 144:ef7eb2e8f9f7 149 dma_handle_t *rxHandle)
<> 144:ef7eb2e8f9f7 150 {
<> 144:ef7eb2e8f9f7 151 SPI_MasterTransferCreateHandleDMA(base, handle, callback, userData, txHandle, rxHandle);
<> 144:ef7eb2e8f9f7 152 }
<> 144:ef7eb2e8f9f7 153
<> 144:ef7eb2e8f9f7 154 /*!
<> 144:ef7eb2e8f9f7 155 * @brief Perform a non-blocking SPI transfer using DMA.
<> 144:ef7eb2e8f9f7 156 *
<> 144:ef7eb2e8f9f7 157 * @note This interface returned immediately after transfer initiates, users should call
<> 144:ef7eb2e8f9f7 158 * SPI_GetTransferStatus to poll the transfer status to check whether SPI transfer finished.
<> 144:ef7eb2e8f9f7 159 *
<> 144:ef7eb2e8f9f7 160 * @param base SPI peripheral base address.
<> 144:ef7eb2e8f9f7 161 * @param handle SPI DMA handle pointer.
<> 144:ef7eb2e8f9f7 162 * @param xfer Pointer to dma transfer structure.
<> 144:ef7eb2e8f9f7 163 * @retval kStatus_Success Successfully start a transfer.
<> 144:ef7eb2e8f9f7 164 * @retval kStatus_InvalidArgument Input argument is invalid.
<> 144:ef7eb2e8f9f7 165 * @retval kStatus_SPI_Busy SPI is not idle, is running another transfer.
<> 144:ef7eb2e8f9f7 166 */
<> 144:ef7eb2e8f9f7 167 static inline status_t SPI_SlaveTransferDMA(SPI_Type *base, spi_dma_handle_t *handle, spi_transfer_t *xfer)
<> 144:ef7eb2e8f9f7 168 {
<> 144:ef7eb2e8f9f7 169 return SPI_MasterTransferDMA(base, handle, xfer);
<> 144:ef7eb2e8f9f7 170 }
<> 144:ef7eb2e8f9f7 171
<> 144:ef7eb2e8f9f7 172 /*!
<> 144:ef7eb2e8f9f7 173 * @brief Abort a SPI transfer using DMA.
<> 144:ef7eb2e8f9f7 174 *
<> 144:ef7eb2e8f9f7 175 * @param base SPI peripheral base address.
<> 144:ef7eb2e8f9f7 176 * @param handle SPI DMA handle pointer.
<> 144:ef7eb2e8f9f7 177 */
<> 144:ef7eb2e8f9f7 178 static inline void SPI_SlaveTransferAbortDMA(SPI_Type *base, spi_dma_handle_t *handle)
<> 144:ef7eb2e8f9f7 179 {
<> 144:ef7eb2e8f9f7 180 SPI_MasterTransferAbortDMA(base, handle);
<> 144:ef7eb2e8f9f7 181 }
<> 144:ef7eb2e8f9f7 182
<> 144:ef7eb2e8f9f7 183 /*!
<> 144:ef7eb2e8f9f7 184 * @brief Get the transferred bytes for SPI slave DMA.
<> 144:ef7eb2e8f9f7 185 *
<> 144:ef7eb2e8f9f7 186 * @param base SPI peripheral base address.
<> 144:ef7eb2e8f9f7 187 * @param handle SPI DMA handle pointer.
<> 144:ef7eb2e8f9f7 188 * @param count Transferred bytes.
<> 144:ef7eb2e8f9f7 189 * @retval kStatus_SPI_Success Succeed get the transfer count.
<> 144:ef7eb2e8f9f7 190 * @retval kStatus_NoTransferInProgress There is not a non-blocking transaction currently in progress.
<> 144:ef7eb2e8f9f7 191 */
<> 144:ef7eb2e8f9f7 192 static inline status_t SPI_SlaveTransferGetCountDMA(SPI_Type *base, spi_dma_handle_t *handle, size_t *count)
<> 144:ef7eb2e8f9f7 193 {
<> 144:ef7eb2e8f9f7 194 return SPI_MasterTransferGetCountDMA(base, handle, count);
<> 144:ef7eb2e8f9f7 195 }
<> 144:ef7eb2e8f9f7 196
<> 144:ef7eb2e8f9f7 197 /*! @} */
<> 144:ef7eb2e8f9f7 198
<> 144:ef7eb2e8f9f7 199 #if defined(__cplusplus)
<> 144:ef7eb2e8f9f7 200 }
<> 144:ef7eb2e8f9f7 201 #endif
<> 144:ef7eb2e8f9f7 202
<> 144:ef7eb2e8f9f7 203 /*!
<> 144:ef7eb2e8f9f7 204 * @}
<> 144:ef7eb2e8f9f7 205 */
<> 144:ef7eb2e8f9f7 206 #endif