00001 /* ---------------------------------------------------------------------------- */ 00002 /* Atmel Microcontroller Software Support */ 00003 /* SAM Software Package License */ 00004 /* ---------------------------------------------------------------------------- */ 00005 /* Copyright (c) 2015, Atmel Corporation */ 00006 /* */ 00007 /* All rights reserved. */ 00008 /* */ 00009 /* Redistribution and use in source and binary forms, with or without */ 00010 /* modification, are permitted provided that the following condition is met: */ 00011 /* */ 00012 /* - Redistributions of source code must retain the above copyright notice, */ 00013 /* this list of conditions and the disclaimer below. */ 00014 /* */ 00015 /* Atmel's name may not be used to endorse or promote products derived from */ 00016 /* this software without specific prior written permission. */ 00017 /* */ 00018 /* DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR */ 00019 /* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF */ 00020 /* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE */ 00021 /* DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT, */ 00022 /* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT */ 00023 /* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, */ 00024 /* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF */ 00025 /* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING */ 00026 /* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, */ 00027 /* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ 00028 /* ---------------------------------------------------------------------------- */ 00029 00030 /** 00031 * \file 00032 * 00033 * Implementation of SPI driver, transfer data through DMA. 00034 * 00035 */ 00036 00037 #ifndef QSPI_DMA_H 00038 #define QSPI_DMA_H 00039 00040 /*---------------------------------------------------------------------------- 00041 * Headers 00042 *----------------------------------------------------------------------------*/ 00043 00044 #include "chip.h" 00045 #include "../../../../utils/utility.h" 00046 00047 /*---------------------------------------------------------------------------- 00048 * Definitions 00049 *----------------------------------------------------------------------------*/ 00050 00051 /** An unspecified error has occurred.*/ 00052 #define QSPID_ERROR 1 00053 00054 /** SPI driver is currently in use.*/ 00055 #define QSPID_ERROR_LOCK 2 00056 00057 #define QSPID_CH_NOT_ENABLED 0xFF 00058 /*---------------------------------------------------------------------------- 00059 * Types 00060 *----------------------------------------------------------------------------*/ 00061 00062 /** SPI transfer complete callback. */ 00063 typedef void (*QspidCallback)(uint8_t, void *); 00064 00065 /** Constant structure associated with SPI port. This structure prevents 00066 client applications to have access in the same time. */ 00067 typedef struct _Qspid { 00068 Qspid_t Qspid; 00069 /** Pointer to DMA driver */ 00070 sXdmad *pXdmad; 00071 /** Polling */ 00072 uint8_t Polling; 00073 /** Tx ch num */ 00074 uint8_t TxChNum; 00075 /** Rx ch num */ 00076 uint8_t RxChNum; 00077 /** QSPI Xfr state. */ 00078 volatile uint8_t progress; 00079 } QspiDma_t; 00080 00081 #ifdef __cplusplus 00082 extern "C" { 00083 #endif 00084 /*---------------------------------------------------------------------------- 00085 * Exported functions 00086 *----------------------------------------------------------------------------*/ 00087 00088 uint32_t QSPID_Configure(QspiDma_t *pQspidma, QspiMode_t Mode, 00089 uint32_t dwConfiguration, sXdmad *pXdmad); 00090 00091 uint32_t QSPID_EnableQspiRxChannel(QspiDma_t *pQspidma); 00092 00093 uint32_t QSPID_EnableQspiTxChannel(QspiDma_t *pQspidma); 00094 00095 uint32_t QSPID_DisableQspiRxChannel(QspiDma_t *pQspidma); 00096 00097 uint32_t QSPID_DisableQspiTxChannel(QspiDma_t *pQspidma); 00098 00099 uint32_t QSPID_DisableSpiChannel(QspiDma_t *pQspidma); 00100 00101 uint32_t QSPID_EnableSpiChannel(QspiDma_t *pQspidma); 00102 00103 uint32_t QSPID_ReadWriteQSPI(QspiDma_t *pQspidma, Access_t const ReadWrite); 00104 00105 uint32_t QSPID_ReadWriteSPI(QspiDma_t *pQspidma, Access_t const ReadWrite); 00106 00107 uint32_t QSPID_IsBusy(volatile uint8_t *QspiSemaphore); 00108 00109 #ifdef __cplusplus 00110 } 00111 #endif 00112 00113 #endif /* #ifndef _SPI_DMA_ */