diff options
Diffstat (limited to 'bsps/arm/atsam/include/libchip/include/qspi_dma.h')
| -rw-r--r-- | bsps/arm/atsam/include/libchip/include/qspi_dma.h | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/bsps/arm/atsam/include/libchip/include/qspi_dma.h b/bsps/arm/atsam/include/libchip/include/qspi_dma.h new file mode 100644 index 0000000000..8ee274e15d --- /dev/null +++ b/bsps/arm/atsam/include/libchip/include/qspi_dma.h @@ -0,0 +1,115 @@ +/* ---------------------------------------------------------------------------- */ +/* 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_ */ |