299 lines
13 KiB
C
299 lines
13 KiB
C
/**
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******************************************************************************
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* @file rs_message.h
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* @brief Библиотека обмена сообщениями по RS-интерфейсу
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******************************************************************************
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@defgroup RS_TOOLS RS Tools
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@brief Всякое для работы по UART/RS
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@{
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******************************************************************************
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* @details
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Универсальная библиотека для работы с последовательными протоколами (Modbus, Custom)
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через UART в режиме прерываний с поддержкой таймаутов.
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@section Основные возможности:
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- Прием/передача в прерываниях
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- Обработка IDLE линии для определения конца фрейма
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- Таймауты приема через TIM
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- Гибкая настройка размера сообщений
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@section Использование:
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1. Определить структуру сообщения и размеры буфера
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2. Реализовать weak-функции обработки сообщений
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3. Добавить вызовы RS_UART_Handler/RS_TIM_Handler в прерывания
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4. Инициализировать через RS_Init() и запустить прием RS_Receive_IT()
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@section Особенности:
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- Буфер: RS_Buffer[MSG_SIZE_MAX] Общий для приема/передачи
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- Состояния: отслеживается через флаги в RS_HandleTypeDef
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- Таймауты: контролируют максимальное время ожидания фрейма
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******************************************************************************/
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#ifndef __RS_LIB_H_
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#define __RS_LIB_H_
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#include "modbus_core.h"
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/////////////////////////////////////////////////////////////////////
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////////////////////////////---DEFINES---////////////////////////////
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/* Check that all defines required by RS are defined */
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#ifndef MSG_SIZE_MAX
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#error Define MSG_SIZE_MAX (Maximum size of message). This is necessary to create buffer for UART.
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#endif
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#ifndef RX_FIRST_PART_SIZE
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#error Define RX_FIRST_PART_SIZE (Size of first part of message). This is necessary to receive the first part of the message, from which determine the size of the remaining part of the message.
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#endif
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/**
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* @cond Заглушки и внутренний недокументированный стаф
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*/
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/* Clear message-uart buffer */
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#define RS_Clear_Buff(_buff_) for(int i=0; i<MSG_SIZE_MAX;i++) _buff_[i] = NULL
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/* Set/Reset flags */
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#define RS_Set_Free(_hRS_) _hRS_->f.RS_Busy = 0
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#define RS_Set_Busy(_hRS_) _hRS_->f.RS_Busy = 1
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#define RS_Set_RX_Flags(_hRS_) _hRS_->f.RX_Busy = 1; _hRS_->f.RX_Done = 0; _hRS_->f.RX_Half = 0
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#define RS_Set_RX_Active_Flags(_hRS_) _hRS_->f.RX_Ongoing = 1
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#define RS_Set_TX_Flags(_hRS_) _hRS_->f.TX_Busy = 1; _hRS_->f.TX_Done = 0
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#define RS_Reset_RX_Active_Flags(_hRS_) _hRS_->f.RX_Ongoing = 0
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#define RS_Reset_RX_Flags(_hRS_) RS_Reset_RX_Active_Flags(_hRS_); _hRS_->f.RX_Busy = 0; _hRS_->f.RX_Done = 0; _hRS_->f.RX_Half = 0
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#define RS_Reset_TX_Flags(_hRS_) _hRS_->f.TX_Busy = 0; _hRS_->f.TX_Done = 0
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#define RS_Set_RX_End_Flag(_hRS_) _hRS_->f.RX_Done = 1;
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#define RS_Set_TX_End_Flag(_hRS_) _hRS_->f.TX_Done = 1
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#define RS_Set_RX_End(_hRS_) RS_Reset_RX_Flags(_hRS_); RS_Set_RX_End_Flag(_hRS_)
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#define RS_Set_TX_End(_hRS_) RS_Reset_TX_Flags(_hRS_); RS_Set_TX_End_Flag(_hRS_)
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/* Clear all RS stuff */
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#define RS_Clear_All(_hRS_) RS_Clear_Buff(_hRS_->pBufferPtr); RS_Reset_RX_Flags(_hRS_); RS_Reset_TX_Flags(_hRS_);
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//#define MB_Is_RX_Busy(_hRS_) ((_hRS_->huart->gState&HAL_USART_STATE_BUSY_RX) == HAL_USART_STATE_BUSY_RX)
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//#define MB_Is_TX_Busy(_hRS_) ((_hRS_->huart->gState&HAL_USART_STATE_BUSY_RX) == HAL_USART_STATE_BUSY_TX)
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#define RS_Is_RX_Busy(_hRS_) (_hRS_->f.RX_Busy == 1)
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#define RS_Is_TX_Busy(_hRS_) (_hRS_->f.TX_Busy == 1)
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// направление передачи rs485
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#ifndef RS_EnableReceive
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#define RS_EnableReceive()
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#endif
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#ifndef RS_EnableTransmit
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#define RS_EnableTransmit()
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#endif
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#ifndef __MYLIBS_INCLUDE_H_
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// дефайны из mylibs include
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static int dummy;
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#define TrackerTypeDef(num_user_vars) void *
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#define num_of_usercnts(_user_) 0
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#define assert_tracecnt(_cntstruct_, _uservarnumb_) 0
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#define if_assert_usertracker(_cntstruct_, _uservarnumb_) if(0)
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#define tern_assert_usertracker(_cntstruct_, _uservarnumb_) 0
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#define TrackerGet_Ok(_cntstruct_) dummy
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#define TrackerGet_Err(_cntstruct_) dummy
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#define TrackerGet_Warn(_cntstruct_) dummy
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#define TrackerGet_User(_cntstruct_, _uservarnumb_) dummy
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#define TrackerCnt_Ok(_cntstruct_)
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#define TrackerCnt_Err(_cntstruct_)
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#define TrackerCnt_Warn(_cntstruct_)
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#define TrackerCnt_User(_cntstruct_, _uservarnumb_)
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#define TrackerWrite_User(_cntstruct_, _uservarnumb_, _val_)
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#define TrackerClear_All(_cntstruct_)
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#define TrackerClear_Ok(_cntstruct_)
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#define TrackerClear_Err(_cntstruct_)
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#define TrackerClear_Warn(_cntstruct_)
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#define TrackerClear_User(_cntstruct_)
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#define TrackerClear_UserAll(_cntstruct_)
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#ifndef printf_rs_err
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#define printf_rs_err(...)
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#endif
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#ifndef printf_rs
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#define printf_rs(...)
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#endif
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#endif
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#ifndef RS_USER_VARS_NUMB
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#define RS_USER_VARS_NUMB 0
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#endif
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/** @endcond */
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////////////////////////////---DEFINES---////////////////////////////
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/////////////////////////////////////////////////////////////////////
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///////////////////////---STRUCTURES & ENUMS---//////////////////////
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//------------------ENUMERATIONS--------------------
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/** @brief Enums for respond CMD about RS status */
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typedef enum // RS_StatusTypeDef
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{
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/* IN-CODE STATUS (start from 0x01, and goes up)*/
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/*0x01*/ RS_OK = 0x01,
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/*0x02*/ RS_ERR,
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/*0x03*/ RS_ABORTED,
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/*0x04*/ RS_BUSY,
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/*0x05*/ RS_SKIP,
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/*0x06*/ RS_COLLECT_MSG_ERR,
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/*0x07*/ RS_PARSE_MSG_ERR,
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// reserved values
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// /*0x00*/ RS_UNKNOWN_ERR = 0x00, ///< reserved for case, if no one error founded (nothing changed response from zero)
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}RS_StatusTypeDef;
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#define RS_MASTER_START 0x3
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/** @brief Enums for RS Modes */
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typedef enum // RS_ModeTypeDef
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{
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RS_SLAVE_ALWAYS_WAIT = 0x01, ///< Slave mode with infinity waiting
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RS_SLAVE_TIMEOUT_WAIT = 0x02, ///< Slave mode with waiting with timeout
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// RS_MASTER = 0x03, ///< Master mode
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}RS_ModeTypeDef;
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/** @brief Enums for RS UART Modes */
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typedef enum // RS_ITModeTypeDef
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{
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BLCK_MODE = 0x00, ///< Blocking mode
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IT_MODE = 0x01, ///< Interrupt mode
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}RS_ITModeTypeDef;
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/** @brief Enums for Abort modes */
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typedef enum // RS_AbortTypeDef
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{
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ABORT_TX = 0x01, ///< Abort transmit
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ABORT_RX = 0x02, ///< Abort receive
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ABORT_RX_TX = 0x03, ///< Abort receive and transmit
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ABORT_RS = 0x04, ///< Abort uart and reset RS structure
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}RS_AbortTypeDef;
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/** @brief Enums for RX Size modes */
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typedef enum // RS_RXSizeTypeDef
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{
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RS_RX_Size_Const = 0x01, ///< size of receiving message is constant
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RS_RX_Size_NotConst = 0x02, ///< size of receiving message isnt constant
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}RS_RXSizeTypeDef;
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//-----------STRUCTURE FOR HANDLE RS------------
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/** @brief Struct for flags RS */
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typedef struct
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{
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unsigned RX_Half:1; ///< flag: 0 - receiving msg before ByteCnt, 0 - receiving msg after ByteCnt
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unsigned RS_Busy:1; ///< flag: 1 - RS is busy, 0 - RS isnt busy
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unsigned RX_Ongoing:1; ///< flag: 1 - receiving data right now, 0 - waiting for receiving data
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unsigned RX_Busy:1; ///< flag: 1 - receiving is active, 0 - receiving isnt active
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unsigned TX_Busy:1; ///< flag: 1 - transmiting is active, 0 - transmiting isnt active
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unsigned RX_Done:1; ///< flag: 1 - receiving is done, 0 - receiving isnt done
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unsigned TX_Done:1; ///< flag: 1 - transmiting is done, 0 - transmiting isnt done
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// setted by user
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unsigned RX_Continue:1; ///< flag: 0 - continue receiving, 0 - start receiving from ind = 0
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unsigned MessageHandled:1; ///< flag: 1 - RS command is handled, 0 - RS command isnt handled yet
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unsigned EchoResponse:1; ///< flag: 1 - response with received msg, 0 - response with own msg
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unsigned DeferredResponse:1; ///< flag: 1 - response not in interrupt, 0 - response in interrupt
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unsigned DataUpdated:1; ///< flag: 1 - Received command to write colis/resg
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unsigned ReInit_UART:1; ///< flag: 1 - need to reinitialize uart, 0 - nothing
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}RS_FlagsTypeDef;
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/**
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* @brief Handle for RS communication.
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* @note Prefixes: h - handle, s - settings, f - flag
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*/
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typedef struct // RS_HandleTypeDef
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{
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/* MESSAGE */
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uint8_t ID; ///< ID of RS "channel"
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RS_MsgTypeDef *pMessagePtr; ///< pointer to message struct
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uint8_t *pBufferPtr; ///< pointer to message buffer
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int32_t RS_Message_Size; ///< size of whole message, not only data
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/* HANDLERS and SETTINGS */
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UART_HandleTypeDef *huart; ///< handler for used uart
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TIM_HandleTypeDef *htim; ///< handler for used tim
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RS_ModeTypeDef sRS_Mode; ///< setting: slave or master @ref RS_ModeTypeDef
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RS_ITModeTypeDef sRS_IT_Mode; ///< setting: 1 - IT mode, 0 - Blocking mode
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uint16_t sRS_Timeout; ///< setting: timeout in ms
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RS_RXSizeTypeDef sRS_RX_Size_Mode; ///< setting: 1 - not const, 0 - const
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/* FLAGS */
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RS_FlagsTypeDef f; ///< These flags for controling receive/transmit
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/* RS STATUS */
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uint32_t lastPacketTick;
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RS_StatusTypeDef RS_STATUS; ///< RS status
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TrackerTypeDef(RS_USER_VARS_NUMB) rs_err;
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}RS_HandleTypeDef;
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extern RS_HandleTypeDef hmodbus1;
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///////////////////////---STRUCTURES & ENUMS---//////////////////////
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/////////////////////////////////////////////////////////////////////
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///////////////////////////---FUNCTIONS---///////////////////////////
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//----------------FUNCTIONS FOR PROCESSING MESSAGE-------------------
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/*--------------------Defined by users purposes--------------------*/
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/* Respond accord to received message */
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RS_StatusTypeDef RS_Response(RS_HandleTypeDef *hRS, RS_MsgTypeDef *RS_msg);
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/* Collect message in buffer to transmit it */
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RS_StatusTypeDef RS_Collect_Message(RS_HandleTypeDef *hRS, RS_MsgTypeDef *RS_msg, uint8_t *msg_uart_buff);
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/* Parse message from buffer to process it */
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RS_StatusTypeDef RS_Parse_Message(RS_HandleTypeDef *hRS, RS_MsgTypeDef *RS_msg, uint8_t *msg_uart_buff);
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//-------------------------GENERAL FUNCTIONS-------------------------
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/*-----------------Should be called from main code-----------------*/
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/* Start receive IT */
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RS_StatusTypeDef RS_Receive_IT(RS_HandleTypeDef *hRS, RS_MsgTypeDef *RS_msg);
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/* Start transmit IT */
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RS_StatusTypeDef RS_Transmit_IT(RS_HandleTypeDef *hRS, RS_MsgTypeDef *RS_msg);
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/* Initialize UART and handle RS stucture */
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RS_StatusTypeDef RS_Init(RS_HandleTypeDef *hRS, UART_HandleTypeDef *huart, TIM_HandleTypeDef *htim, uint8_t *pRS_BufferPtr);
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/* ReInitialize UART and RS receive */
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HAL_StatusTypeDef RS_ReInit_UART(RS_HandleTypeDef *hRS, UART_HandleTypeDef *suart);
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/* Abort RS/UART */
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RS_StatusTypeDef RS_Abort(RS_HandleTypeDef *hRS, RS_AbortTypeDef AbortMode);
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//-------------------------GENERAL FUNCTIONS-------------------------
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//-------------------------------------------------------------------
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//--------------------CALLBACK/HANDLER FUNCTIONS---------------------
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/* Handle for starting receive */
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RS_StatusTypeDef RS_Handle_Receive_Start(RS_HandleTypeDef *hRS, RS_MsgTypeDef *RS_msg);
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/* Handle for starting transmit */
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RS_StatusTypeDef RS_Handle_Transmit_Start(RS_HandleTypeDef *hRS, RS_MsgTypeDef *RS_msg);
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/* UART TX Callback: define behaviour after transmiting message */
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RS_StatusTypeDef RS_UART_TxCpltCallback(RS_HandleTypeDef *hRS);
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/* Handler for UART */
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void RS_UART_Handler(RS_HandleTypeDef *hRS);
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/* Handler for TIM */
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void RS_TIM_Handler(RS_HandleTypeDef *hRS);
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//--------------------CALLBACK/HANDLER FUNCTIONS---------------------
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///////////////////////////---FUNCTIONS---///////////////////////////
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/** RS_TOOLS
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* @}
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*/
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#endif // __RS_LIB_H_
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