[e1eeb883] | 1 | /* ---------------------------------------------------------------------------- */ |
---|
| 2 | /* Atmel Microcontroller Software Support */ |
---|
| 3 | /* SAM Software Package License */ |
---|
| 4 | /* ---------------------------------------------------------------------------- */ |
---|
| 5 | /* Copyright (c) 2015, Atmel Corporation */ |
---|
| 6 | /* */ |
---|
| 7 | /* All rights reserved. */ |
---|
| 8 | /* */ |
---|
| 9 | /* Redistribution and use in source and binary forms, with or without */ |
---|
| 10 | /* modification, are permitted provided that the following condition is met: */ |
---|
| 11 | /* */ |
---|
| 12 | /* - Redistributions of source code must retain the above copyright notice, */ |
---|
| 13 | /* this list of conditions and the disclaimer below. */ |
---|
| 14 | /* */ |
---|
| 15 | /* Atmel's name may not be used to endorse or promote products derived from */ |
---|
| 16 | /* this software without specific prior written permission. */ |
---|
| 17 | /* */ |
---|
| 18 | /* DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR */ |
---|
| 19 | /* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF */ |
---|
| 20 | /* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE */ |
---|
| 21 | /* DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT, */ |
---|
| 22 | /* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT */ |
---|
| 23 | /* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, */ |
---|
| 24 | /* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF */ |
---|
| 25 | /* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING */ |
---|
| 26 | /* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, */ |
---|
| 27 | /* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ |
---|
| 28 | /* ---------------------------------------------------------------------------- */ |
---|
| 29 | |
---|
| 30 | /** |
---|
| 31 | * \file |
---|
| 32 | * |
---|
| 33 | * Implementation of SPI driver, transfer data through DMA. |
---|
| 34 | * |
---|
| 35 | */ |
---|
| 36 | |
---|
| 37 | #ifndef QSPI_DMA_H |
---|
| 38 | #define QSPI_DMA_H |
---|
| 39 | |
---|
| 40 | /*---------------------------------------------------------------------------- |
---|
| 41 | * Headers |
---|
| 42 | *----------------------------------------------------------------------------*/ |
---|
| 43 | |
---|
| 44 | #include "chip.h" |
---|
[c354fac] | 45 | #ifndef __rtems__ |
---|
[e1eeb883] | 46 | #include "../../../../utils/utility.h" |
---|
[c354fac] | 47 | #endif /* __rtems__ */ |
---|
[e1eeb883] | 48 | |
---|
| 49 | /*---------------------------------------------------------------------------- |
---|
| 50 | * Definitions |
---|
| 51 | *----------------------------------------------------------------------------*/ |
---|
| 52 | |
---|
| 53 | /** An unspecified error has occurred.*/ |
---|
| 54 | #define QSPID_ERROR 1 |
---|
| 55 | |
---|
| 56 | /** SPI driver is currently in use.*/ |
---|
| 57 | #define QSPID_ERROR_LOCK 2 |
---|
| 58 | |
---|
| 59 | #define QSPID_CH_NOT_ENABLED 0xFF |
---|
| 60 | /*---------------------------------------------------------------------------- |
---|
| 61 | * Types |
---|
| 62 | *----------------------------------------------------------------------------*/ |
---|
| 63 | |
---|
| 64 | /** SPI transfer complete callback. */ |
---|
| 65 | typedef void (*QspidCallback)(uint8_t, void *); |
---|
| 66 | |
---|
| 67 | /** Constant structure associated with SPI port. This structure prevents |
---|
| 68 | client applications to have access in the same time. */ |
---|
| 69 | typedef struct _Qspid { |
---|
| 70 | Qspid_t Qspid; |
---|
| 71 | /** Pointer to DMA driver */ |
---|
| 72 | sXdmad *pXdmad; |
---|
| 73 | /** Polling */ |
---|
| 74 | uint8_t Polling; |
---|
| 75 | /** Tx ch num */ |
---|
| 76 | uint8_t TxChNum; |
---|
| 77 | /** Rx ch num */ |
---|
| 78 | uint8_t RxChNum; |
---|
| 79 | /** QSPI Xfr state. */ |
---|
| 80 | volatile uint8_t progress; |
---|
| 81 | } QspiDma_t; |
---|
| 82 | |
---|
| 83 | #ifdef __cplusplus |
---|
| 84 | extern "C" { |
---|
| 85 | #endif |
---|
| 86 | /*---------------------------------------------------------------------------- |
---|
| 87 | * Exported functions |
---|
| 88 | *----------------------------------------------------------------------------*/ |
---|
| 89 | |
---|
| 90 | uint32_t QSPID_Configure(QspiDma_t *pQspidma, QspiMode_t Mode, |
---|
| 91 | uint32_t dwConfiguration, sXdmad *pXdmad); |
---|
| 92 | |
---|
| 93 | uint32_t QSPID_EnableQspiRxChannel(QspiDma_t *pQspidma); |
---|
| 94 | |
---|
| 95 | uint32_t QSPID_EnableQspiTxChannel(QspiDma_t *pQspidma); |
---|
| 96 | |
---|
| 97 | uint32_t QSPID_DisableQspiRxChannel(QspiDma_t *pQspidma); |
---|
| 98 | |
---|
| 99 | uint32_t QSPID_DisableQspiTxChannel(QspiDma_t *pQspidma); |
---|
| 100 | |
---|
| 101 | uint32_t QSPID_DisableSpiChannel(QspiDma_t *pQspidma); |
---|
| 102 | |
---|
| 103 | uint32_t QSPID_EnableSpiChannel(QspiDma_t *pQspidma); |
---|
| 104 | |
---|
| 105 | uint32_t QSPID_ReadWriteQSPI(QspiDma_t *pQspidma, Access_t const ReadWrite); |
---|
| 106 | |
---|
| 107 | uint32_t QSPID_ReadWriteSPI(QspiDma_t *pQspidma, Access_t const ReadWrite); |
---|
| 108 | |
---|
| 109 | uint32_t QSPID_IsBusy(volatile uint8_t *QspiSemaphore); |
---|
| 110 | |
---|
| 111 | #ifdef __cplusplus |
---|
| 112 | } |
---|
| 113 | #endif |
---|
| 114 | |
---|
| 115 | #endif /* #ifndef _SPI_DMA_ */ |
---|