Inheritance diagram for LibXR::STM32I2C:

Collaboration diagram for LibXR::STM32I2C:

Data Structures
struct	HasClockSpeed

struct	HasClockSpeed< T, std::void_t< decltype(std::declval< T >() ->Init.ClockSpeed)> >

Public Member Functions
	STM32I2C (I2C_HandleTypeDef *hi2c, RawData dma_buff, uint32_t dma_enable_min_size=3)

ErrorCode	Read (uint16_t slave_addr, RawData read_data, ReadOperation &op) override
	读取 I2C 设备的数据。 Reads data from an I2C device.

ErrorCode	Write (uint16_t slave_addr, ConstRawData write_data, WriteOperation &op) override
	向 I2C 设备写入数据。 Writes data to an I2C device.

ErrorCode	MemRead (uint16_t slave_addr, uint16_t mem_addr, RawData read_data, ReadOperation &op, MemAddrLength mem_addr_size) override
	从 I2C 设备指定寄存器读取数据。 Reads data from a specific register of an I2C device.

ErrorCode	MemWrite (uint16_t slave_addr, uint16_t mem_addr, ConstRawData write_data, WriteOperation &op, MemAddrLength mem_addr_size) override
	向 I2C 设备指定寄存器写入数据。 Writes data to a specific register of an I2C device.

template<typename T >
std::enable_if<!HasClockSpeed< T >::value >::type	SetClockSpeed (T &, const Configuration &)

template<typename T >
std::enable_if< HasClockSpeed< T >::value >::type	SetClockSpeed (T &i2c_handle, const Configuration &config)

ErrorCode	SetConfig (Configuration config) override
	配置 I2C 设备参数。 Configures the I2C device settings.

Public Member Functions inherited from LibXR::I2C
	I2C ()
	默认构造函数。 Default constructor.

Data Fields
stm32_i2c_id_t	id_

I2C_HandleTypeDef *	i2c_handle_

uint32_t	dma_enable_min_size_

RawData	dma_buff_

ReadOperation	read_op_

WriteOperation	write_op_

RawData	read_buff_

bool	read_ = false

Static Public Attributes
static STM32I2C *	map [STM32_I2C_NUMBER] = {nullptr}

Additional Inherited Members
Public Types inherited from LibXR::I2C
enum class	MemAddrLength : uint8_t { BYTE_8 , BYTE_16 }

Detailed Description

Definition at line 48 of file stm32_i2c.hpp.

Constructor & Destructor Documentation

◆ STM32I2C()

LibXR::STM32I2C::STM32I2C	(	I2C_HandleTypeDef *	hi2c,
		RawData	dma_buff,
		uint32_t	dma_enable_min_size = 3 )

inline

Definition at line 51 of file stm32_i2c.hpp.

      : I2C(),
        id_(STM32_I2C_GetID(hi2c->Instance)),
        i2c_handle_(hi2c),
        dma_enable_min_size_(dma_enable_min_size),
        dma_buff_(dma_buff)
  {
    map[id_] = this;
  }

Member Function Documentation

◆ MemRead()

ErrorCode LibXR::STM32I2C::MemRead	(	uint16_t	slave_addr,
		uint16_t	mem_addr,
		RawData	read_data,
		ReadOperation &	op,
		MemAddrLength	mem_addr_size )

inlineoverridevirtual

从 I2C 设备指定寄存器读取数据。 Reads data from a specific register of an I2C device.

该函数从指定 I2C 从设备的寄存器地址读取数据，并存储到 read_data 中。 This function reads data from the specified register of the I2C slave and stores it in read_data.

Parameters

slave_addr	I2C 从设备的八位地址。 The eight-bit address of the I2C slave device.
mem_addr	寄存器地址（通常为 8 位或 16 位）。 Register address (typically 8-bit or 16-bit).
read_data	用于存储读取数据的 `RawData` 对象。 `RawData` object to store read data.
op	异步或同步的读取操作对象。 Read operation object (sync or async).
mem_addr_size	寄存器地址长度。 Size of register address in bytes.

Returns: 返回 ErrorCode，表示是否读取成功。 Returns ErrorCode indicating success or failure.

Implements LibXR::I2C.

Definition at line 144 of file stm32_i2c.hpp.

  {
    ASSERT(read_data.size_ <= dma_buff_.size_);
 
    if (i2c_handle_->State != HAL_I2C_STATE_READY)
    {
      return ErrorCode::BUSY;
    }
 
    read_ = true;
 
    if (read_data.size_ > dma_enable_min_size_)
    {
      read_op_ = op;
      HAL_I2C_Mem_Read_DMA(i2c_handle_, slave_addr, mem_addr,
                           mem_addr_size == MemAddrLength::BYTE_8 ? I2C_MEMADD_SIZE_8BIT
                                                                  : I2C_MEMADD_SIZE_16BIT,
                           reinterpret_cast<uint8_t *>(dma_buff_.addr_), read_data.size_);
      read_buff_ = read_data;
      op.MarkAsRunning();
      if (op.type == ReadOperation::OperationType::BLOCK)
      {
        return op.data.sem_info.sem->Wait(op.data.sem_info.timeout);
      }
      return ErrorCode::OK;
    }
    else
    {
      auto ans =
          HAL_I2C_Mem_Read(i2c_handle_, slave_addr, mem_addr,
                           mem_addr_size == MemAddrLength::BYTE_8 ? I2C_MEMADD_SIZE_8BIT
                                                                  : I2C_MEMADD_SIZE_16BIT,
                           reinterpret_cast<uint8_t *>(read_data.addr_), read_data.size_,
                           20) == HAL_OK
              ? ErrorCode::OK
              : ErrorCode::BUSY;
 
      op.UpdateStatus(false, std::forward<ErrorCode>(ans));
      if (op.type == ReadOperation::OperationType::BLOCK)
      {
        return op.data.sem_info.sem->Wait(op.data.sem_info.timeout);
      }
      return ans;
    }
  }

◆ MemWrite()

ErrorCode LibXR::STM32I2C::MemWrite	(	uint16_t	slave_addr,
		uint16_t	mem_addr,
		ConstRawData	write_data,
		WriteOperation &	op,
		MemAddrLength	mem_addr_size )

inlineoverridevirtual

向 I2C 设备指定寄存器写入数据。 Writes data to a specific register of an I2C device.

该函数将 write_data 写入指定 I2C 从设备的寄存器地址。 This function writes write_data to the specified register of the I2C slave.

Parameters

slave_addr	I2C 从设备的八位地址。 The eight-bit address of the I2C slave device.
mem_addr	寄存器地址（通常为 8 位或 16 位）。 Register address (typically 8-bit or 16-bit).
write_data	要写入的数据，`ConstRawData` 类型。 Data to be written, of type `ConstRawData`.
op	异步或同步的写入操作对象。 Write operation object (sync or async).
mem_addr_size	寄存器地址长度。 Size of register address in bytes.

Returns: 返回 ErrorCode，表示是否写入成功。 Returns ErrorCode indicating success or failure.

Implements LibXR::I2C.

Definition at line 191 of file stm32_i2c.hpp.

  {
    ASSERT(write_data.size_ <= dma_buff_.size_);
 
    if (i2c_handle_->State != HAL_I2C_STATE_READY)
    {
      return ErrorCode::BUSY;
    }
 
    read_ = false;
 
    memcpy(dma_buff_.addr_, write_data.addr_, write_data.size_);
 
    if (write_data.size_ > dma_enable_min_size_)
    {
      write_op_ = op;
#if __DCACHE_PRESENT
      SCB_CleanDCache_by_Addr(reinterpret_cast<uint32_t *>(dma_buff_.addr_), write_data.size_);
#endif
      HAL_I2C_Mem_Write_DMA(
          i2c_handle_, slave_addr, mem_addr,
          mem_addr_size == MemAddrLength::BYTE_8 ? I2C_MEMADD_SIZE_8BIT
                                                 : I2C_MEMADD_SIZE_16BIT,
          reinterpret_cast<uint8_t *>(dma_buff_.addr_), write_data.size_);
      op.MarkAsRunning();
      if (op.type == WriteOperation::OperationType::BLOCK)
      {
        return op.data.sem_info.sem->Wait(op.data.sem_info.timeout);
      }
      return ErrorCode::OK;
    }
    else
    {
      auto ans = HAL_I2C_Mem_Write(i2c_handle_, slave_addr, mem_addr,
                                   mem_addr_size == MemAddrLength::BYTE_8
                                       ? I2C_MEMADD_SIZE_8BIT
                                       : I2C_MEMADD_SIZE_16BIT,
                                   reinterpret_cast<uint8_t *>(dma_buff_.addr_),
                                   write_data.size_, 20) == HAL_OK
                     ? ErrorCode::OK
                     : ErrorCode::BUSY;
 
      op.UpdateStatus(false, std::forward<ErrorCode>(ans));
      if (op.type == WriteOperation::OperationType::BLOCK)
      {
        return op.data.sem_info.sem->Wait(op.data.sem_info.timeout);
      }
      return ans;
    }
  }

◆ Read()

ErrorCode LibXR::STM32I2C::Read	(	uint16_t	slave_addr,
		RawData	read_data,
		ReadOperation &	op )

inlineoverridevirtual

读取 I2C 设备的数据。 Reads data from an I2C device.

该函数从指定的 I2C 从设备地址读取数据，并存储到 read_data 中。 This function reads data from the specified I2C slave address and stores it in read_data.

Parameters

slave_addr	目标 I2C 从设备的八位地址。 The eight-bit address of the target I2C slave device.
read_data	存储读取数据的 `RawData` 对象。 A `RawData` object to store the read data.
op	读取操作对象，包含同步或异步操作模式。 Read operation object containing synchronous or asynchronous operation mode.

Returns: 返回 ErrorCode，指示操作是否成功。 Returns an ErrorCode indicating whether the operation was successful.

Implements LibXR::I2C.

Definition at line 61 of file stm32_i2c.hpp.

  {
    if (i2c_handle_->State != HAL_I2C_STATE_READY)
    {
      return ErrorCode::BUSY;
    }
 
    read_ = true;
 
    if (read_data.size_ > dma_enable_min_size_)
    {
      read_op_ = op;
      HAL_I2C_Master_Receive_DMA(i2c_handle_, slave_addr,
                                 reinterpret_cast<uint8_t *>(dma_buff_.addr_),
                                 read_data.size_);
      read_buff_ = read_data;
      op.MarkAsRunning();
      if (op.type == ReadOperation::OperationType::BLOCK)
      {
        return op.data.sem_info.sem->Wait(op.data.sem_info.timeout);
      }
      return ErrorCode::OK;
    }
    else
    {
      auto ans = HAL_I2C_Master_Receive(i2c_handle_, slave_addr,
                                        reinterpret_cast<uint8_t *>(read_data.addr_),
                                        read_data.size_, 20) == HAL_OK
                     ? ErrorCode::OK
                     : ErrorCode::BUSY;
      op.UpdateStatus(false, std::forward<ErrorCode>(ans));
      if (op.type == ReadOperation::OperationType::BLOCK)
      {
        return op.data.sem_info.sem->Wait(op.data.sem_info.timeout);
      }
      return ans;
    }
  }

◆ SetClockSpeed() [1/2]

template<typename T >

std::enable_if<!HasClockSpeed< T >::value >::type LibXR::STM32I2C::SetClockSpeed	(	T &	,
		const Configuration &	)

inline

Definition at line 255 of file stm32_i2c.hpp.

257 {

258 }

◆ SetClockSpeed() [2/2]

template<typename T >

std::enable_if< HasClockSpeed< T >::value >::type LibXR::STM32I2C::SetClockSpeed	(	T &	i2c_handle,
		const Configuration &	config )

inline

Definition at line 261 of file stm32_i2c.hpp.

  {
    i2c_handle->Init.ClockSpeed = config.clock_speed;
  }

◆ SetConfig()

ErrorCode LibXR::STM32I2C::SetConfig ( Configuration config )

inlineoverridevirtual

配置 I2C 设备参数。 Configures the I2C device settings.

该函数用于设置 I2C 设备的参数，例如通信速率等。 This function sets the parameters of the I2C device, such as the communication speed.

Parameters

config 包含 I2C 设置信息的 Configuration 结构体。 A Configuration structure containing I2C settings.

Returns: 返回 ErrorCode，指示配置是否成功。 Returns an ErrorCode indicating whether the configuration was successful.

Implements LibXR::I2C.

Definition at line 267 of file stm32_i2c.hpp.

  {
    if (HasClockSpeed<decltype(i2c_handle_)>::value)
    {
      SetClockSpeed<decltype(i2c_handle_)>(i2c_handle_, config);
    }
    else
    {
      return ErrorCode::NOT_SUPPORT;
    }
 
    if (HAL_I2C_Init(i2c_handle_) != HAL_OK)
    {
      return ErrorCode::INIT_ERR;
    }
    return ErrorCode::OK;
  }

◆ Write()

ErrorCode LibXR::STM32I2C::Write	(	uint16_t	slave_addr,
		ConstRawData	write_data,
		WriteOperation &	op )

inlineoverridevirtual

向 I2C 设备写入数据。 Writes data to an I2C device.

该函数将 write_data 写入指定的 I2C 从设备地址。 This function writes write_data to the specified I2C slave address.

Parameters

slave_addr	目标 I2C 从设备的八位地址。 The eight-bit address of the target I2C slave device.
write_data	需要写入的数据，`ConstRawData` 类型。 The data to be written, of type `ConstRawData`.
op	写入操作对象，包含同步或异步操作模式。 Write operation object containing synchronous or asynchronous operation mode.

Returns: 返回 ErrorCode，指示操作是否成功。 Returns an ErrorCode indicating whether the operation was successful.

Implements LibXR::I2C.

Definition at line 100 of file stm32_i2c.hpp.

  {
    if (i2c_handle_->State != HAL_I2C_STATE_READY)
    {
      return ErrorCode::BUSY;
    }
 
    read_ = false;
 
    memcpy(dma_buff_.addr_, write_data.addr_, write_data.size_);
 
    if (write_data.size_ > dma_enable_min_size_)
    {
      write_op_ = op;
#if __DCACHE_PRESENT
      SCB_CleanDCache_by_Addr(reinterpret_cast<uint32_t *>(dma_buff_.addr_), write_data.size_);
#endif
      HAL_I2C_Master_Transmit_DMA(i2c_handle_, slave_addr,
                                  reinterpret_cast<uint8_t *>(dma_buff_.addr_),
                                  write_data.size_);
      op.MarkAsRunning();
      if (op.type == WriteOperation::OperationType::BLOCK)
      {
        return op.data.sem_info.sem->Wait(op.data.sem_info.timeout);
      }
      return ErrorCode::OK;
    }
    else
    {
      auto ans = HAL_I2C_Master_Transmit(i2c_handle_, slave_addr,
                                         reinterpret_cast<uint8_t *>(dma_buff_.addr_),
                                         write_data.size_, 20) == HAL_OK
                     ? ErrorCode::OK
                     : ErrorCode::BUSY;
      op.UpdateStatus(false, std::forward<ErrorCode>(ans));
      if (op.type == WriteOperation::OperationType::BLOCK)
      {
        return op.data.sem_info.sem->Wait(op.data.sem_info.timeout);
      }
      return ans;
    }
  }

Field Documentation

◆ dma_buff_

RawData LibXR::STM32I2C::dma_buff_

Definition at line 289 of file stm32_i2c.hpp.

◆ dma_enable_min_size_

uint32_t LibXR::STM32I2C::dma_enable_min_size_

Definition at line 287 of file stm32_i2c.hpp.

◆ i2c_handle_

I2C_HandleTypeDef* LibXR::STM32I2C::i2c_handle_

Definition at line 286 of file stm32_i2c.hpp.

◆ id_

stm32_i2c_id_t LibXR::STM32I2C::id_

Definition at line 285 of file stm32_i2c.hpp.

◆ map

STM32I2C * STM32I2C::map = {nullptr}

static

Definition at line 297 of file stm32_i2c.hpp.

◆ read_

bool LibXR::STM32I2C::read_ = false

Definition at line 295 of file stm32_i2c.hpp.

◆ read_buff_

RawData LibXR::STM32I2C::read_buff_

Definition at line 293 of file stm32_i2c.hpp.

◆ read_op_

ReadOperation LibXR::STM32I2C::read_op_

Definition at line 291 of file stm32_i2c.hpp.

◆ write_op_

WriteOperation LibXR::STM32I2C::write_op_

Definition at line 292 of file stm32_i2c.hpp.

The documentation for this class was generated from the following files:

driver/st/stm32_i2c.hpp
driver/st/stm32_i2c.cpp

Data Structures

Public Member Functions

Data Fields

Static Public Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ STM32I2C()

Member Function Documentation

◆ MemRead()

◆ MemWrite()

◆ Read()

◆ SetClockSpeed() [1/2]

◆ SetClockSpeed() [2/2]

◆ SetConfig()

◆ Write()

Field Documentation

◆ dma_buff_

◆ dma_enable_min_size_

◆ i2c_handle_

◆ id_

◆ map

◆ read_

◆ read_buff_

◆ read_op_

◆ write_op_