/* ---------------------------------------------------------------------------- */ /* Atmel Microcontroller Software Support */ /* SAM Software Package License */ /* ---------------------------------------------------------------------------- */ /* Copyright (c) 2015, Atmel Corporation */ /* */ /* All rights reserved. */ /* */ /* Redistribution and use in source and binary forms, with or without */ /* modification, are permitted provided that the following condition is met: */ /* */ /* - Redistributions of source code must retain the above copyright notice, */ /* this list of conditions and the disclaimer below. */ /* */ /* Atmel's name may not be used to endorse or promote products derived from */ /* this software without specific prior written permission. */ /* */ /* DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR */ /* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF */ /* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE */ /* DISCLAIMED. IN NO EVENT SHALL ATMEL 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. */ /* ---------------------------------------------------------------------------- */ /** * \file * * Implementation of SPI driver, transfer data through DMA. * */ #ifndef QSPI_DMA_H #define QSPI_DMA_H /*---------------------------------------------------------------------------- * Headers *----------------------------------------------------------------------------*/ #include "chip.h" #ifndef __rtems__ #include "../../../../utils/utility.h" #endif /* __rtems__ */ /*---------------------------------------------------------------------------- * Definitions *----------------------------------------------------------------------------*/ /** An unspecified error has occurred.*/ #define QSPID_ERROR 1 /** SPI driver is currently in use.*/ #define QSPID_ERROR_LOCK 2 #define QSPID_CH_NOT_ENABLED 0xFF /*---------------------------------------------------------------------------- * Types *----------------------------------------------------------------------------*/ /** SPI transfer complete callback. */ typedef void (*QspidCallback)(uint8_t, void *); /** Constant structure associated with SPI port. This structure prevents client applications to have access in the same time. */ typedef struct _Qspid { Qspid_t Qspid; /** Pointer to DMA driver */ sXdmad *pXdmad; /** Polling */ uint8_t Polling; /** Tx ch num */ uint8_t TxChNum; /** Rx ch num */ uint8_t RxChNum; /** QSPI Xfr state. */ volatile uint8_t progress; } QspiDma_t; #ifdef __cplusplus extern "C" { #endif /*---------------------------------------------------------------------------- * Exported functions *----------------------------------------------------------------------------*/ uint32_t QSPID_Configure(QspiDma_t *pQspidma, QspiMode_t Mode, uint32_t dwConfiguration, sXdmad *pXdmad); uint32_t QSPID_EnableQspiRxChannel(QspiDma_t *pQspidma); uint32_t QSPID_EnableQspiTxChannel(QspiDma_t *pQspidma); uint32_t QSPID_DisableQspiRxChannel(QspiDma_t *pQspidma); uint32_t QSPID_DisableQspiTxChannel(QspiDma_t *pQspidma); uint32_t QSPID_DisableSpiChannel(QspiDma_t *pQspidma); uint32_t QSPID_EnableSpiChannel(QspiDma_t *pQspidma); uint32_t QSPID_ReadWriteQSPI(QspiDma_t *pQspidma, Access_t const ReadWrite); uint32_t QSPID_ReadWriteSPI(QspiDma_t *pQspidma, Access_t const ReadWrite); uint32_t QSPID_IsBusy(volatile uint8_t *QspiSemaphore); #ifdef __cplusplus } #endif #endif /* #ifndef _SPI_DMA_ */