527 lines
15 KiB
C
527 lines
15 KiB
C
/******************************************************************************
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* Copyright (C) 2016, Huada Semiconductor Co.,Ltd All rights reserved.
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*
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* This software is owned and published by:
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* Huada Semiconductor Co.,Ltd ("HDSC").
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*
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* BY DOWNLOADING, INSTALLING OR USING THIS SOFTWARE, YOU AGREE TO BE BOUND
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* BY ALL THE TERMS AND CONDITIONS OF THIS AGREEMENT.
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*
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* This software contains source code for use with HDSC
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* components. This software is licensed by HDSC to be adapted only
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* for use in systems utilizing HDSC components. HDSC shall not be
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* responsible for misuse or illegal use of this software for devices not
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* supported herein. HDSC is providing this software "AS IS" and will
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* not be responsible for issues arising from incorrect user implementation
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* of the software.
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*
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* Disclaimer:
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* HDSC MAKES NO WARRANTY, EXPRESS OR IMPLIED, ARISING BY LAW OR OTHERWISE,
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* REGARDING THE SOFTWARE (INCLUDING ANY ACOOMPANYING WRITTEN MATERIALS),
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* ITS PERFORMANCE OR SUITABILITY FOR YOUR INTENDED USE, INCLUDING,
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* WITHOUT LIMITATION, THE IMPLIED WARRANTY OF MERCHANTABILITY, THE IMPLIED
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* WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE OR USE, AND THE IMPLIED
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* WARRANTY OF NONINFRINGEMENT.
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* HDSC SHALL HAVE NO LIABILITY (WHETHER IN CONTRACT, WARRANTY, TORT,
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* NEGLIGENCE OR OTHERWISE) FOR ANY DAMAGES WHATSOEVER (INCLUDING, WITHOUT
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* LIMITATION, DAMAGES FOR LOSS OF BUSINESS PROFITS, BUSINESS INTERRUPTION,
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* LOSS OF BUSINESS INFORMATION, OR OTHER PECUNIARY LOSS) ARISING FROM USE OR
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* INABILITY TO USE THE SOFTWARE, INCLUDING, WITHOUT LIMITATION, ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL OR CONSEQUENTIAL DAMAGES OR LOSS OF DATA,
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* SAVINGS OR PROFITS,
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* EVEN IF Disclaimer HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
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* YOU ASSUME ALL RESPONSIBILITIES FOR SELECTION OF THE SOFTWARE TO ACHIEVE YOUR
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* INTENDED RESULTS, AND FOR THE INSTALLATION OF, USE OF, AND RESULTS OBTAINED
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* FROM, THE SOFTWARE.
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*
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* This software may be replicated in part or whole for the licensed use,
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* with the restriction that this Disclaimer and Copyright notice must be
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* included with eaenCh copy of this software, whether used in part or whole,
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* at all times.
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*/
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/*****************************************************************************/
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/** \file spi.c
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**
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** SPI driver API.
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** @link Driver Group Some description @endlink
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**
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** - 2018-05-17 1.0 Devi First version for Device Driver Library of
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** Module.
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**
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*****************************************************************************/
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/******************************************************************************
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* Include files
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*****************************************************************************/
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#include "spi.h"
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/**
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******************************************************************************
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** \addtogroup SpiGroup
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*****************************************************************************/
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//@{
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/******************************************************************************
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* Local pre-processor symbols/macros ('#define')
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*****************************************************************************/
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#define IS_VALID_STAT(x) ( SpiIf == (x)||\
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SpiSserr == (x)||\
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SpiBusy == (x)||\
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SpiMdf == (x)||\
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SpiTxe == (x)||\
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SpiRxne == (x))
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#define IS_VALID_CH(x) ( Spi0 == (x)||\
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Spi1 == (x))
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/******************************************************************************/
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/* Local function prototypes ('static') */
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/******************************************************************************/
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/******************************************************************************/
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/* Local variable prototypes ('static') */
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/******************************************************************************/
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static func_ptr_t pfnSpi0Callback = NULL; ///< callback function pointer for SPI Irq
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static func_ptr_t pfnSpi1Callback = NULL; ///< callback function pointer for SPI Irq
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/**
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******************************************************************************
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** \brief SPI 中断处理函数
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**
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** \param [in] enCh通道
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**
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** \retval 无
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**
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******************************************************************************/
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void Spi_IRQHandler(en_spi_channel_t enCh)
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{
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if(Spi0 == enCh)
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{
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if(NULL != pfnSpi0Callback)
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{
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pfnSpi0Callback();
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}
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}
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else
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{
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if(NULL != pfnSpi1Callback)
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{
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pfnSpi1Callback();
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}
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}
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}
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/**
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******************************************************************************
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** \brief SPI 请求状态获取
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**
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** \param [in]enCh 通道
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**
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** \retval 请求状态
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**
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******************************************************************************/
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uint8_t Spi_GetState(en_spi_channel_t enCh)
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{
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uint8_t u8State = 0;
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ASSERT(IS_VALID_CH(enCh));
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if(Spi0 == enCh)
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{
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u8State = M0P_SPI0->STAT;
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}
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else
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{
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u8State = M0P_SPI1->STAT;
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}
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return u8State;
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}
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/**
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******************************************************************************
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** \brief SPI 请求状态获取
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**
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** \param [in]enCh 通道， enStatus 获取请求
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**
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** \retval 请求状态
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**
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******************************************************************************/
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boolean_t Spi_GetStatus(en_spi_channel_t enCh,en_spi_status_t enStatus)
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{
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boolean_t bFlag = FALSE;
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ASSERT(IS_VALID_CH(enCh));
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ASSERT(IS_VALID_STAT(enStatus));
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if(Spi0 == enCh)
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{
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switch (enStatus)
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{
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case SpiIf:
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bFlag = M0P_SPI0->STAT_f.SPIF;
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break;
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case SpiSserr:
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bFlag = M0P_SPI0->STAT_f.SSERR;
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break;
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case SpiMdf:
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bFlag = M0P_SPI0->STAT_f.MDF;
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break;
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case SpiBusy:
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bFlag = M0P_SPI0->STAT_f.BUSY;
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break;
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case SpiTxe:
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bFlag = M0P_SPI0->STAT_f.TXE;
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break;
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case SpiRxne:
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bFlag = M0P_SPI0->STAT_f.RXNE;
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break;
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default:
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break;
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}
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}
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else
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{
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switch (enStatus)
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{
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case SpiIf:
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bFlag = M0P_SPI1->STAT_f.SPIF;
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break;
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case SpiSserr:
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bFlag = M0P_SPI1->STAT_f.SSERR;
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break;
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case SpiMdf:
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bFlag = M0P_SPI1->STAT_f.MDF;
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break;
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case SpiBusy:
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bFlag = M0P_SPI1->STAT_f.BUSY;
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break;
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case SpiTxe:
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bFlag = M0P_SPI1->STAT_f.TXE;
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break;
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case SpiRxne:
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bFlag = M0P_SPI1->STAT_f.RXNE;
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break;
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default:
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break;
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}
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}
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return bFlag;
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}
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/**
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******************************************************************************
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** \brief SPI中断清除
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**
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** \param [in]enCh 通道， enStatus 获取请求
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**
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** \retval 请求状态
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**
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******************************************************************************/
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en_result_t Spi_ClearStatus(en_spi_channel_t enCh)
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{
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en_result_t enRet = Error;
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ASSERT(IS_VALID_CH(enCh));
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if(Spi0 == enCh)
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{
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M0P_SPI0->ICLR_f.INT_CLR = 0;
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}
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else
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{
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M0P_SPI1->ICLR_f.INT_CLR = 0;
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}
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enRet = Ok;
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return enRet;
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}
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/**
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******************************************************************************
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** \brief SPI 功能使能禁止函数
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**
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** \param [in] enCh通道，enFunc功能，bFlag 0/1使能或禁止
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**
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** \retval Ok初始化成功
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** \retval ErrorInvalidParameter 初始化错误
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******************************************************************************/
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en_result_t Spi_FuncEn(en_spi_channel_t enCh,en_spi_func_t enFunc,boolean_t bFlag)
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{
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en_result_t enRet = Error;
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ASSERT(IS_VALID_CH(enCh));
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if(Spi0 == enCh)
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{
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switch(enFunc)
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{
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case SpiRxNeIe:
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M0P_SPI0->CR2_f.RXNEIE = bFlag;
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break;
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case SpiTxEIe:
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M0P_SPI0->CR2_f.TXEIE = bFlag;
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break;
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case SpiDmaTxEn:
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M0P_SPI0->CR2_f.HDMA_TX = bFlag;
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break;
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case SpiDmaRxEn:
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M0P_SPI0->CR2_f.HDMA_RX = bFlag;
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break;
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default:
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return ErrorInvalidParameter;
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}
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}
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else
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{
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switch(enFunc)
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{
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case SpiRxNeIe:
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M0P_SPI1->CR2_f.RXNEIE = bFlag;
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break;
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case SpiTxEIe:
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M0P_SPI1->CR2_f.TXEIE = bFlag;
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break;
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case SpiDmaTxEn:
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M0P_SPI1->CR2_f.HDMA_TX = bFlag;
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break;
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case SpiDmaRxEn:
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M0P_SPI1->CR2_f.HDMA_RX = bFlag;
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break;
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default:
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return ErrorInvalidParameter;
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}
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}
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enRet = Ok;
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return enRet;
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}
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/**
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******************************************************************************
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** \brief SPI 总体初始化函数
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**
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** \param [in]
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enCh通道
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pstcSpiConfig初始化结构
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**
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** \retval Ok初始化成功
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** \retval ErrorInvalidParameter 初始化错误
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******************************************************************************/
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en_result_t Spi_Init(en_spi_channel_t enCh,stc_spi_config_t *pstcSpiConfig)
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{
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ASSERT(NULL != pstcSpiConfig);
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ASSERT(IS_VALID_CH(enCh));
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if(Spi0 == enCh)
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{
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M0P_SPI0->CR = 0x00;
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M0P_SPI0->CR_f.MSTR = pstcSpiConfig->bMasterMode;
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M0P_SPI0->CR_f.CPOL = pstcSpiConfig->bCPOL;
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M0P_SPI0->CR_f.CPHA = pstcSpiConfig->bCPHA;
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if(pstcSpiConfig->u8BaudRate > SpiClkDiv16)
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{
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M0P_SPI0->CR_f.SPR2 = 1;
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}
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M0P_SPI0->CR |= (pstcSpiConfig->u8BaudRate&0x03u);
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M0P_SPI0->STAT = 0x00;
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M0P_SPI0->CR_f.SPEN = TRUE;
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if (TRUE == pstcSpiConfig->bIrqEn)
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{
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M0P_SPI0->CR2_f.INT_EN = 1;
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EnableNvic(SPI0_IRQn,IrqLevel3,TRUE);
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}
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else
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{
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EnableNvic(SPI0_IRQn,IrqLevel3,FALSE);
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}
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if(NULL != pstcSpiConfig->pfnSpi0IrqCb)
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{
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pfnSpi0Callback = pstcSpiConfig->pfnSpi0IrqCb;
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}
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}
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else
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{
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M0P_SPI1->CR = 0x00;
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M0P_SPI1->CR_f.MSTR = pstcSpiConfig->bMasterMode;
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M0P_SPI1->CR_f.CPOL = pstcSpiConfig->bCPOL;
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M0P_SPI1->CR_f.CPHA = pstcSpiConfig->bCPHA;
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if(pstcSpiConfig->u8BaudRate > SpiClkDiv16)
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{
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M0P_SPI1->CR_f.SPR2 = 1;
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}
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M0P_SPI1->CR |= (pstcSpiConfig->u8BaudRate&0x03u);
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M0P_SPI1->STAT = 0x00;
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M0P_SPI1->CR_f.SPEN = TRUE;
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if (TRUE == pstcSpiConfig->bIrqEn)
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{
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M0P_SPI1->CR2_f.INT_EN = 1;
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EnableNvic(SPI1_IRQn,IrqLevel3,TRUE);
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}
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else
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{
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EnableNvic(SPI1_IRQn,IrqLevel3,FALSE);
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}
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if(NULL != pstcSpiConfig->pfnSpi1IrqCb)
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{
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pfnSpi1Callback = pstcSpiConfig->pfnSpi1IrqCb;
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}
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}
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return Ok;
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}
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/**
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******************************************************************************
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** \brief SPI 禁止函数
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**
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** \param [in] enCh通道
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**
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** \retval Ok禁止设置成功
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**
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******************************************************************************/
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en_result_t Spi_DeInit(en_spi_channel_t enCh)
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{
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ASSERT(IS_VALID_CH(enCh));
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if(Spi0 == enCh)
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{
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M0P_SPI0->DATA = 0x00;
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M0P_SPI0->STAT = 0x00;
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M0P_SPI0->CR = 0x00;
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pfnSpi0Callback = NULL;
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EnableNvic(SPI0_IRQn,IrqLevel3,FALSE);
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}
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else
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{
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M0P_SPI1->DATA = 0x00;
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M0P_SPI1->STAT = 0x00;
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M0P_SPI1->CR = 0x00;
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pfnSpi1Callback = NULL;
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EnableNvic(SPI1_IRQn,IrqLevel3,FALSE);
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}
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return Ok;
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}
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/**
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******************************************************************************
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** \brief SPI 配置主发送的电平
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**
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** \param [in] 高低电平
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**
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** \retval 无
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**
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******************************************************************************/
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void Spi_SetCS(en_spi_channel_t enCh,boolean_t bFlag)
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{
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ASSERT(IS_VALID_CH(enCh));
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if(Spi0 == enCh)
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{
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M0P_SPI0->SSN = bFlag;
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}
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else
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{
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M0P_SPI1->SSN = bFlag;
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}
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}
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/**
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******************************************************************************
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** \brief SPI 发送一字节函数
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**
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** \param [in] enCh通道，u8Data发送字节
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**
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** \retval Ok发送成功
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**
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******************************************************************************/
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en_result_t Spi_SendData(en_spi_channel_t enCh,uint8_t u8Data)
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{
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uint32_t u32TimeOut;
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ASSERT(IS_VALID_CH(enCh));
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u32TimeOut = 1000;
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if(Spi0 == enCh)
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{
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while(--u32TimeOut)
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{
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if(TRUE == M0P_SPI0->STAT_f.TXE)
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{
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break;
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}
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}
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if(u32TimeOut == 0)
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{
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return ErrorTimeout;
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}
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M0P_SPI0->DATA = u8Data;
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u32TimeOut = 1000;
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while(--u32TimeOut)
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{
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if(TRUE == M0P_SPI0->STAT_f.RXNE)
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{
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break;
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}
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}
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if(u32TimeOut == 0)
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{
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return ErrorTimeout;
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}
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u8Data = M0P_SPI0->DATA;
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}
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else
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{
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while(--u32TimeOut)
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{
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if(TRUE == M0P_SPI1->STAT_f.TXE)
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{
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break;
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}
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}
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if(u32TimeOut == 0)
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{
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return ErrorTimeout;
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}
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M0P_SPI1->DATA = u8Data;
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u32TimeOut = 1000;
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while(--u32TimeOut)
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{
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if(TRUE == M0P_SPI1->STAT_f.RXNE)
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{
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break;
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}
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}
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if(u32TimeOut == 0)
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{
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return ErrorTimeout;
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}
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u8Data = M0P_SPI1->DATA;
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}
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return Ok;
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}
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/**
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******************************************************************************
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** \brief SPI 接收一字节函数
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**
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** \param [in] enCh接收通道
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**
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** \retval 接收一字节数据
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**
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******************************************************************************/
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uint8_t Spi_ReceiveData(en_spi_channel_t enCh,boolean_t bMasterOrSlave)
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{
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uint8_t temp;
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ASSERT(IS_VALID_CH(enCh));
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if(Spi0 == enCh)
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{
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if(1 == bMasterOrSlave)
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{
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M0P_SPI0->DATA = 0x00;
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}
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while(0 == M0P_SPI0->STAT_f.RXNE){;}
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temp = M0P_SPI0->DATA;
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}
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else
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{
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if(1 == bMasterOrSlave)
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{
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M0P_SPI1->DATA = 0x00;
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}
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while(0 == M0P_SPI1->STAT_f.RXNE){;}
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temp = M0P_SPI1->DATA;
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}
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return temp;
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}
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//@} // SpiGroup
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/******************************************************************************
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* EOF (not truncated)
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*****************************************************************************/
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