667 lines
18 KiB
C
667 lines
18 KiB
C
/*************************************************************************************
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* Copyright (C) 2017, 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 each 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 I2C.c
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**
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** WDT function driver API.
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** @link SampleGroup Some description @endlink
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**
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** - 2018-03-13 1.0 CJ First version for Device Driver Library of 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 "i2c.h"
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/**
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*******************************************************************************
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** \addtogroup I2cGroup
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******************************************************************************/
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//@{
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/******************************************************************************/
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/* Local function prototypes ('static') */
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/******************************************************************************/
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static func_ptr_t pfnI2c0tCallback = NULL;
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static func_ptr_t pfnI2c1tCallback = NULL;
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/**
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******************************************************************************
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** \brief I2C设置波特率配置寄存器
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**
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** \param [in] u8Tm 波特率配置值
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**
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** \retval enRet 成功或失败
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**
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******************************************************************************/
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en_result_t I2C_SetBaud(en_i2c_channel_t enCh,uint8_t u8Tm)
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{
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en_result_t enRet = Error;
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if(I2C0 == enCh)
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{
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M0P_I2C0->TM = u8Tm;
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}
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else
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{
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M0P_I2C1->TM = u8Tm;
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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 I2C功能设置相关函数
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**
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** \param [in] enFunc功能参数
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**
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** \retval enRet 成功或失败
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**
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******************************************************************************/
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en_result_t I2C_SetFunc(en_i2c_channel_t enCh,en_i2c_func_t enFunc)
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{
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en_result_t enRet = Error;
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if(I2C0 == enCh)
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{
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switch(enFunc)
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{
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case I2cMode_En:
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M0P_I2C0->CR_f.ENS = 1;
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break;
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case I2cStart_En:
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M0P_I2C0->CR_f.STA = 1;
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break;
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case I2cStop_En:
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M0P_I2C0->CR_f.STO = 1;
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break;
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case I2cAck_En:
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M0P_I2C0->CR_f.AA = 1;
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break;
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case I2cHlm_En:
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M0P_I2C0->CR_f.H1M = 1;
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break;
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case I2cBaud_En:
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M0P_I2C0->TMRUN = 0x01;
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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 I2cMode_En:
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M0P_I2C1->CR_f.ENS = 1;
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break;
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case I2cStart_En:
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M0P_I2C1->CR_f.STA = 1;
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break;
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case I2cStop_En:
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M0P_I2C1->CR_f.STO = 1;
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break;
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case I2cAck_En:
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M0P_I2C1->CR_f.AA = 1;
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break;
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case I2cHlm_En:
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M0P_I2C1->CR_f.H1M = 1;
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break;
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case I2cBaud_En:
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M0P_I2C1->TMRUN = 0x01;
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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 I2C功能清除相关函数
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**
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** \param [in] enFunc功能参数
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**
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** \retval enRet 成功或失败
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**
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******************************************************************************/
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en_result_t I2C_ClearFunc(en_i2c_channel_t enCh,en_i2c_func_t enFunc)
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{
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en_result_t enRet = Error;
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if(I2C0 == enCh)
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{
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switch(enFunc)
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{
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case I2cMode_En:
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M0P_I2C0->CR_f.ENS = 0;
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break;
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case I2cStart_En:
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M0P_I2C0->CR_f.STA = 0;
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break;
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case I2cStop_En:
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M0P_I2C0->CR_f.STO = 0;
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break;
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case I2cAck_En:
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M0P_I2C0->CR_f.AA = 0;
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break;
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case I2cHlm_En:
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M0P_I2C0->CR_f.H1M = 0;
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break;
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case I2cBaud_En:
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M0P_I2C0->TMRUN = 0x00;
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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 I2cMode_En:
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M0P_I2C1->CR_f.ENS = 0;
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break;
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case I2cStart_En:
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M0P_I2C1->CR_f.STA = 0;
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break;
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case I2cStop_En:
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M0P_I2C1->CR_f.STO = 0;
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break;
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case I2cAck_En:
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M0P_I2C1->CR_f.AA = 0;
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break;
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case I2cHlm_En:
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M0P_I2C1->CR_f.H1M = 0;
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break;
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case I2cBaud_En:
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M0P_I2C1->TMRUN = 0x00;
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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 I2C获取中断标记函数
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**
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** \param 无
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**
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** \retval bIrq中断标记
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**
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******************************************************************************/
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boolean_t I2C_GetIrq(en_i2c_channel_t enCh)
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{
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boolean_t bIrq = FALSE;
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if(I2C0 == enCh)
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{
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bIrq = M0P_I2C0->CR_f.SI;
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}
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else
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{
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bIrq = M0P_I2C1->CR_f.SI;
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}
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return bIrq;
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}
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/**
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******************************************************************************
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** \brief I2C清除中断标记函数
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**
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** \param 无
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**
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** \retval bIrq中断标记
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**
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******************************************************************************/
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en_result_t I2C_ClearIrq(en_i2c_channel_t enCh)
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{
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en_result_t enRet = Error;
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if(I2C0 == enCh)
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{
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M0P_I2C0->CR_f.SI = 0;
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}
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else
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{
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M0P_I2C1->CR_f.SI = 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 I2C获取相关状态
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**
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** \param 无
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**
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** \retval I2C状态
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**
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******************************************************************************/
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uint8_t I2C_GetState(en_i2c_channel_t enCh)
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{
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uint8_t u8State = 0;
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if(I2C0 == enCh)
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{
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u8State = M0P_I2C0->STAT;
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}
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else
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{
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u8State = M0P_I2C1->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 I2C写从机地址函数
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**
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** \param u8SlaveAddr从机地址
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**
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** \retval I2C写成功与否状态
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**
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******************************************************************************/
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en_result_t I2C_WriteSlaveAddr(en_i2c_channel_t enCh,stc_i2c_addr_t *pstcSlaveAddr)
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{
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en_result_t enRet = Error;
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if(I2C0 == enCh)
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{
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M0P_I2C0->ADDR_f.ADR = pstcSlaveAddr->Addr;
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M0P_I2C0->ADDR_f.GC = pstcSlaveAddr->Gc;
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}
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else
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{
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M0P_I2C1->ADDR_f.ADR = pstcSlaveAddr->Addr;
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M0P_I2C1->ADDR_f.GC = pstcSlaveAddr->Gc;
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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 字节写从机函数
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**
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** \param u8Data写数据
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**
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** \retval 写数据是否成功
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**
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******************************************************************************/
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en_result_t I2C_WriteByte(en_i2c_channel_t enCh,uint8_t u8Data)
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{
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en_result_t enRet = Error;
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if(I2C0 == enCh)
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{
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M0P_I2C0->DATA = u8Data;
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}
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else
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{
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M0P_I2C1->DATA = u8Data;
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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 字节读从机函数
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**
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** \param 无
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**
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** \retval 读取数据
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**
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******************************************************************************/
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uint8_t I2C_ReadByte(en_i2c_channel_t enCh)
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{
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uint8_t u8Data = 0;
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if(I2C0 == enCh)
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{
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u8Data = M0P_I2C0->DATA;
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}
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else
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{
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u8Data = M0P_I2C1->DATA;
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}
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return u8Data;
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}
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/**
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******************************************************************************
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** \brief 主机发送函数
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**
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** \param u8Addr从机内存地址，pu8Data写数据，u32Len写数据长度
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**
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** \retval 写数据是否成功
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**
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******************************************************************************/
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en_result_t I2C_MasterWriteData(en_i2c_channel_t enCh,uint8_t u8DevAddr,uint8_t u8Addr,uint8_t *pu8Data,uint32_t u32Len)
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{
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en_result_t enRet = Error;
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uint8_t u8i=0,u8State;
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I2C_SetFunc(enCh,I2cStart_En);
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while(1)
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{
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while(0 == I2C_GetIrq(enCh))
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{}
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u8State = I2C_GetState(enCh);
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switch(u8State)
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{
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case 0x08:
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I2C_ClearFunc(enCh,I2cStart_En);
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I2C_WriteByte(enCh,u8DevAddr);//从设备地址发送
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break;
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case 0x18:
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I2C_WriteByte(enCh,u8Addr);//从设备内存地址发送
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break;
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case 0x28:
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I2C_WriteByte(enCh,pu8Data[u8i++]);
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break;
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case 0x20:
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case 0x38:
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I2C_SetFunc(enCh,I2cStart_En);
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break;
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case 0x30:
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I2C_SetFunc(enCh,I2cStop_En);
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break;
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default:
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break;
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}
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if(u8i>u32Len)
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{
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I2C_SetFunc(enCh,I2cStop_En);//此顺序不能调换，出停止条件
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I2C_ClearIrq(enCh);
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break;
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}
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I2C_ClearIrq(enCh);
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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 从机发送函数
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**
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** \param pu8Data发送数据缓存，u32Len发送数据长度
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**
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** \retval 发送数据是否成功
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**
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******************************************************************************/
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en_result_t I2C_SlaveWriteData(en_i2c_channel_t enCh,uint8_t *pu8Data,uint32_t *u32Len)
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{
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uint8_t u8i=0,u8State;
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//
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while(1)
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{
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while(0 == I2C_GetIrq(enCh))
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{}
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u8State = I2C_GetState(enCh);
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switch(u8State)
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{
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case 0xA8:
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case 0xB0:
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I2C_WriteByte(enCh,pu8Data[u8i++]);
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break;
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case 0xB8:
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case 0xC8:
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I2C_WriteByte(enCh,pu8Data[u8i++]);
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break;
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case 0xF8:
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*u32Len = u8i;
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break;
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default:
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return ErrorInvalidParameter;
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}
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I2C_ClearIrq(enCh);
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}
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}
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/**
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******************************************************************************
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** \brief 从机接收函数
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**
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** \param pu8Data接收数据存放缓存，u32Len接收数据指针
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**
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** \retval 接收数据是否成功
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**
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******************************************************************************/
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en_result_t I2C_SlaveReadData(en_i2c_channel_t enCh,uint8_t *pu8Data,uint32_t *pu32Len)
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{
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uint8_t u8i=0,u8State;
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while(0 == I2C_GetIrq(enCh))
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{}
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while(1)
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{
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while(0 == I2C_GetIrq(enCh))
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{}
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u8State = I2C_GetState(enCh);
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switch(u8State)
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{
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case 0x60:
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case 0x68:
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case 0x70:
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case 0x78:
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break;
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case 0x80:
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case 0x90:
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pu8Data[u8i++] = I2C_ReadByte(enCh);
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break;
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case 0xA0:
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*pu32Len = u8i;
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break;
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default:
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return ErrorInvalidParameter;
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}
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I2C_ClearIrq(enCh);
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if(0xA0 == u8State)
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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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/**
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******************************************************************************
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** \brief 主机接收函数
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**
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** \param u8Addr从机内存地址，pu8Data读数据存放缓存，u32Len读数据长度
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**
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** \retval 读数据是否成功
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**
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******************************************************************************/
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en_result_t I2C_MasterReadData(en_i2c_channel_t enCh,uint8_t u8DevAddr,uint8_t *pu8Data,uint8_t u8Addr,uint32_t u32Len)
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{
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en_result_t enRet = Error;
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uint8_t u8i=0,u8State;
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I2C_SetFunc(enCh,I2cStart_En);
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while(1)
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{
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while(0 == I2C_GetIrq(enCh))
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{}
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u8State = I2C_GetState(enCh);
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switch(u8State)
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{
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case 0x08:
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I2C_ClearFunc(enCh,I2cStart_En);
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I2C_WriteByte(enCh,u8DevAddr);
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break;
|
||
case 0x18:
|
||
I2C_WriteByte(enCh,u8Addr);
|
||
break;
|
||
case 0x28:
|
||
I2C_SetFunc(enCh,I2cStart_En);
|
||
break;
|
||
case 0x10:
|
||
I2C_ClearFunc(enCh,I2cStart_En);
|
||
I2C_WriteByte(enCh,u8DevAddr|0x01);//从机地址发送OK
|
||
break;
|
||
case 0x40:
|
||
if(u32Len>1)
|
||
{
|
||
I2C_SetFunc(enCh,I2cAck_En);
|
||
}
|
||
break;
|
||
case 0x50:
|
||
pu8Data[u8i++] = I2C_ReadByte(enCh);
|
||
if(u8i==u32Len-1)
|
||
{
|
||
I2C_ClearFunc(enCh,I2cAck_En);
|
||
}
|
||
break;
|
||
case 0x58:
|
||
pu8Data[u8i++] = I2C_ReadByte(enCh);
|
||
I2C_SetFunc(enCh,I2cStop_En);
|
||
break;
|
||
case 0x38:
|
||
I2C_SetFunc(enCh,I2cStart_En);
|
||
break;
|
||
case 0x48:
|
||
I2C_SetFunc(enCh,I2cStop_En);
|
||
I2C_SetFunc(enCh,I2cStart_En);
|
||
break;
|
||
default:
|
||
I2C_SetFunc(enCh,I2cStart_En);//其他错误状态，重新发送起始条件
|
||
break;
|
||
}
|
||
I2C_ClearIrq(enCh);
|
||
if(u8i==u32Len)
|
||
{
|
||
break;
|
||
}
|
||
}
|
||
enRet = Ok;
|
||
return enRet;
|
||
}
|
||
/**
|
||
******************************************************************************
|
||
** \brief I2C模块初始化
|
||
**
|
||
** \param pstcI2CCfg初始化配置结构体
|
||
**
|
||
** \retval 初始化是否成功
|
||
**
|
||
******************************************************************************/
|
||
en_result_t I2C_Init(en_i2c_channel_t enCh,stc_i2c_config_t *pstcI2CCfg)
|
||
{
|
||
en_result_t enRet = Error;
|
||
enRet = I2C_SetFunc(enCh,pstcI2CCfg->enFunc);
|
||
enRet = I2C_SetBaud(enCh,pstcI2CCfg->u8Tm);
|
||
enRet = I2C_WriteSlaveAddr(enCh,&pstcI2CCfg->stcSlaveAddr);
|
||
if(pstcI2CCfg->u8Tm<9)
|
||
{
|
||
I2C_SetFunc(enCh,I2cHlm_En);
|
||
}
|
||
if(NULL!=pstcI2CCfg->pfnI2c0Cb)
|
||
{
|
||
pfnI2c0tCallback = pstcI2CCfg->pfnI2c0Cb;
|
||
}
|
||
if(NULL!=pstcI2CCfg->pfnI2c1Cb)
|
||
{
|
||
pfnI2c1tCallback = pstcI2CCfg->pfnI2c1Cb;
|
||
}
|
||
if(TRUE == pstcI2CCfg->bTouchNvic)
|
||
{
|
||
if(I2C0 == enCh)
|
||
{
|
||
EnableNvic(I2C0_IRQn,IrqLevel3,TRUE);
|
||
}
|
||
else
|
||
{
|
||
EnableNvic(I2C1_IRQn,IrqLevel3,TRUE);
|
||
}
|
||
}
|
||
return enRet;
|
||
}
|
||
/**
|
||
******************************************************************************
|
||
** \brief I2C模块关闭初始化
|
||
**
|
||
** \param 无
|
||
**
|
||
** \retval 设置是否成功
|
||
**
|
||
******************************************************************************/
|
||
en_result_t I2C_DeInit(en_i2c_channel_t enCh)
|
||
{
|
||
en_result_t enRet = Error;
|
||
if(I2C0 == enCh)
|
||
{
|
||
M0P_I2C0->CR = 0x00;
|
||
}
|
||
else
|
||
{
|
||
M0P_I2C1->CR = 0x00;
|
||
}
|
||
enRet = Ok;
|
||
return enRet;
|
||
}
|
||
/**
|
||
******************************************************************************
|
||
** \brief I2C模块中断处理函数
|
||
**
|
||
** \param u8Param 无意义
|
||
**
|
||
** \retval 无
|
||
**
|
||
******************************************************************************/
|
||
void I2c_IRQHandler(uint8_t u8Param)
|
||
{
|
||
if(I2C0 == u8Param)
|
||
{
|
||
if(NULL != pfnI2c0tCallback)
|
||
{
|
||
pfnI2c0tCallback();
|
||
}
|
||
}
|
||
else
|
||
{
|
||
if(NULL != pfnI2c1tCallback)
|
||
{
|
||
pfnI2c1tCallback();
|
||
}
|
||
}
|
||
}
|
||
|
||
//@} // I2cGroup
|