Merge pull request #3312 from NXPmicro/SPI_ASYNCH_API

K64F: SPI Asynch API implementation

Author: 0xc0170

targets/TARGET_Freescale/TARGET_KSDK2_MCUS/TARGET_MCU_K64F/dma_reqs.h

@@ -0,0 +1,48 @@
+/*
+ * Copyright (c) 2016, Freescale Semiconductor, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted 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 Freescale Semiconductor, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived from this
+ *   software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _FSL_DMA_REQS_H_
+#define _FSL_DMA_REQS_H_
+
+#include "fsl_common.h"
+
+/* Array for DSPI DMA TX requests */
+#define SPI_DMA_TX_REQUEST_NUMBERS                                      \
+    {                                                                   \
+        kDmaRequestMux0SPI0Tx, kDmaRequestMux0SPI1, kDmaRequestMux0SPI2 \
+    }
+
+/* Array for DSPI DMA RX requests */
+#define SPI_DMA_RX_REQUEST_NUMBERS                                      \
+    {                                                                   \
+        kDmaRequestMux0SPI0Rx, kDmaRequestMux0SPI1, kDmaRequestMux0SPI2 \
+    }
+
+#endif /* _FSL_DMA_REQS_H_ */

targets/TARGET_Freescale/TARGET_KSDK2_MCUS/TARGET_MCU_K64F/drivers/fsl_dspi_edma.c

@@ -162,8 +162,6 @@ status_t DSPI_MasterTransferEDMA(SPI_Type *base, dspi_master_edma_handle_t *hand
 
     handle->txBuffIfNull = ((uint32_t)DSPI_DUMMY_DATA << 8) | DSPI_DUMMY_DATA;
 
-    handle->state = kDSPI_Busy;
-
     dspi_command_data_config_t commandStruct;
     DSPI_StopTransfer(base);
     DSPI_FlushFifo(base, true, true);
@@ -222,6 +220,8 @@ status_t DSPI_MasterTransferEDMA(SPI_Type *base, dspi_master_edma_handle_t *hand
         return kStatus_InvalidArgument;
     }
 
+    handle->state = kDSPI_Busy;
+
     DSPI_DisableDMA(base, kDSPI_RxDmaEnable | kDSPI_TxDmaEnable);
 
     EDMA_SetCallback(handle->edmaRxRegToRxDataHandle, EDMA_DspiMasterCallback,
@@ -706,13 +706,13 @@ static void EDMA_DspiMasterCallback(edma_handle_t *edmaHandle,
 
     DSPI_DisableDMA((dspiEdmaPrivateHandle->base), kDSPI_RxDmaEnable | kDSPI_TxDmaEnable);
 
+    dspiEdmaPrivateHandle->handle->state = kDSPI_Idle;
+
     if (dspiEdmaPrivateHandle->handle->callback)
     {
         dspiEdmaPrivateHandle->handle->callback(dspiEdmaPrivateHandle->base, dspiEdmaPrivateHandle->handle,
                                                 kStatus_Success, dspiEdmaPrivateHandle->handle->userData);
     }
-
-    dspiEdmaPrivateHandle->handle->state = kDSPI_Idle;
 }
 
 void DSPI_MasterTransferAbortEDMA(SPI_Type *base, dspi_master_edma_handle_t *handle)