USB端点基类 / USB Endpoint base class. More...

#include <ep.hpp>

Inheritance diagram for LibXR::USB::Endpoint:

Collaboration diagram for LibXR::USB::Endpoint:

Data Structures
struct	Config
	端点配置结构体 Endpoint configuration struct More...

Public Types
enum class	Direction : uint8_t { OUT = 0 , IN = 1 , BOTH = 2 }
	端点方向 Endpoint direction More...

enum class	EPNumber : uint8_t { EP0 = 0 , EP1 = 1 , EP2 = 2 , EP3 = 3 , EP4 = 4 , EP5 = 5 , EP6 = 6 , EP7 = 7 , EP8 = 8 , EP9 = 9 , EP10 = 10 , EP11 = 11 , EP12 = 12 , EP13 = 13 , EP14 = 14 , EP15 = 15 , EP_MAX_NUM = 16 , EP_AUTO = 0xFE , EP_INVALID = 0xFF }
	端点号 / Endpoint number More...

enum class	Type : uint8_t { CONTROL = 0 , ISOCHRONOUS = 1 , BULK = 2 , INTERRUPT = 3 }
	端点类型 Endpoint type More...

enum class	State : uint8_t { DISABLED , IDLE , BUSY , STALLED , ERROR }
	端点状态 Endpoint state More...

Public Member Functions
	Endpoint (EPNumber number, Direction dir, RawData buffer)
	构造函数 Constructor

	~Endpoint ()=default
	析构函数 Destructor

	Endpoint (const Endpoint &)=delete

Endpoint &	operator= (const Endpoint &)=delete

EPNumber	GetNumber () const
	获取端点号 Get endpoint number

Direction	AvailableDirection () const
	获取允许配置的端点方向 Get allowed endpoint direction

Direction	GetDirection () const
	获取端点方向 Get endpoint direction

uint8_t	GetAddress () const
	获取端点地址（方向 + 号） Get endpoint address (dir + num)

State	GetState () const
	获取端点状态 Get endpoint state

void	SetState (State state)
	设置端点状态 Set endpoint state

Type	GetType () const
	获取端点类型 Get endpoint type

uint16_t	MaxPacketSize () const
	获取最大包长 Get max packet size

bool	IsStalled () const
	是否挂起 / Is endpoint stalled

bool	UseDoubleBuffer () const
	是否使用双缓冲区 / Use double buffer

RawData	GetBuffer () const
	获取端点缓冲区 Get endpoint buffer

void	SetOnTransferCompleteCallback (Callback< ConstRawData & > cb)
	设置传输完成回调 / Set transfer complete callback

void	SetActiveLength (uint16_t len)

size_t	GetActiveLength ()

virtual size_t	MaxTransferSize () const
	返回最大可传输字节数 Return the maximum transferable size at this time

virtual void	Configure (const Config &cfg)=0
	二次初始化/配置端点协议参数（由Pool/Manager分配后调用） Configure endpoint protocol parameters (call after pool allocation)

virtual void	Close ()=0
	关闭端点（软禁用/资源复位） Close (soft disable)

virtual ErrorCode	Stall ()=0
	停止端点传输 Stop endpoint transfer

virtual ErrorCode	ClearStall ()=0
	清除端点停止状态 Clear endpoint stop status

virtual ErrorCode	Transfer (size_t size)=0
	传输数据 Transfer data

virtual ErrorCode	TransferZLP ()
	传输空包 Transfer zero length packet

void	OnTransferCompleteCallback (bool in_isr, size_t actual_transfer_size)

Static Public Member Functions
static constexpr uint8_t	EPNumberToInt8 (EPNumber ep)
	端点号转换为uint8_t / Convert endpoint number to uint8_t

static constexpr uint8_t	EPNumberToAddr (EPNumber ep, Direction dir)
	端点号转换为端点地址 / Convert endpoint number to endpoint address

static constexpr EPNumber	AddrToEPNumber (uint8_t addr, Direction &dir)
	端点地址转换为端点号 / Convert endpoint address to endpoint number

static constexpr EPNumber	NextEPNumber (EPNumber ep)
	获取下一个端点号 / Get the next endpoint number

Protected Member Functions
Config &	GetConfig ()
	获取当前配置 Get endpoint config

virtual void	SwitchBuffer ()
	切换缓冲区 Switch buffer

virtual void	SetActiveBlock (bool active_block)
	设置当前活动缓冲区 Set active buffer

Private Attributes
LibXR::Callback< LibXR::ConstRawData & >	on_transfer_complete_
	传输完成回调 / Called when transfer completes

EPNumber	number_
	当前端点编号 / Endpoint number

Direction	avail_direction_
	可配置方向 / Allowed direction

Config	config_
	当前端点配置 / Current configuration

State	state_ = State::DISABLED
	当前状态 / Endpoint status

LibXR::RawData	buffer_
	端点缓冲区 / Endpoint buffer

LibXR::DoubleBuffer	double_buffer_
	双缓冲区 / Double buffer

Detailed Description

USB端点基类 / USB Endpoint base class.

用于描述和操作USB端点，包括配置、数据读写、状态管理等接口。 Used for describing and manipulating USB endpoints, including configuration, data read/write, state management, etc.

Definition at line 21 of file ep.hpp.

Member Enumeration Documentation

◆ Direction

enum class LibXR::USB::Endpoint::Direction : uint8_t

strong

端点方向 Endpoint direction

Enumerator
OUT	输出方向 / OUT direction
IN	输入方向 / IN direction
BOTH	双向(可配置成IN/OUT) / Both (can be configured as IN/OUT)

Definition at line 28 of file ep.hpp.

  {
    OUT = 0,  
    IN = 1,   
    BOTH = 2  
  };

◆ EPNumber

enum class LibXR::USB::Endpoint::EPNumber : uint8_t

strong

端点号 / Endpoint number

Enumerator
EP0	端点0 / Endpoint 0
EP1	端点1 / Endpoint 1
EP2	端点2 / Endpoint 2
EP3	端点3 / Endpoint 3
EP4	端点4 / Endpoint 4
EP5	端点5 / Endpoint 5
EP6	端点6 / Endpoint 6
EP7	端点7 / Endpoint 7
EP8	端点8 / Endpoint 8
EP9	端点9 / Endpoint 9
EP10	端点10 / Endpoint 10
EP11	端点11 / Endpoint 11
EP12	端点12 / Endpoint 12
EP13	端点13 / Endpoint 13
EP14	端点14 / Endpoint 14
EP15	端点15 / Endpoint 15
EP_MAX_NUM	端点数量上限 / Maximum number of endpoints
EP_AUTO	自动分配端点号 / Auto allocate
EP_INVALID	非法端点号 / Invalid endpoint

Definition at line 38 of file ep.hpp.

  {
    EP0 = 0,           
    EP1 = 1,           
    EP2 = 2,           
    EP3 = 3,           
    EP4 = 4,           
    EP5 = 5,           
    EP6 = 6,           
    EP7 = 7,           
    EP8 = 8,           
    EP9 = 9,           
    EP10 = 10,         
    EP11 = 11,         
    EP12 = 12,         
    EP13 = 13,         
    EP14 = 14,         
    EP15 = 15,         
    EP_MAX_NUM = 16,   
    EP_AUTO = 0xFE,    
    EP_INVALID = 0xFF  
  };

◆ State

enum class LibXR::USB::Endpoint::State : uint8_t

strong

端点状态 Endpoint state

Enumerator
DISABLED	禁用 / Disabled
IDLE	空闲 / Idle
BUSY	忙 / Busy
STALLED	挂起 / Stalled
ERROR	错误 / Error

Definition at line 77 of file ep.hpp.

  {
    DISABLED,  
    IDLE,      
    BUSY,      
    STALLED,   
    ERROR      
  };

◆ Type

enum class LibXR::USB::Endpoint::Type : uint8_t

strong

端点类型 Endpoint type

Enumerator
CONTROL	控制端点 / Control
ISOCHRONOUS	等时端点 / Isochronous
BULK	批量端点 / Bulk
INTERRUPT	中断端点 / Interrupt

Definition at line 65 of file ep.hpp.

  {
    CONTROL = 0,      
    ISOCHRONOUS = 1,  
    BULK = 2,         
    INTERRUPT = 3     
  };

Constructor & Destructor Documentation

◆ Endpoint()

LibXR::USB::Endpoint::Endpoint	(	EPNumber	number,
		Direction	dir,
		RawData	buffer )

inlineexplicit

构造函数 Constructor

Parameters

number	端点号 / Endpoint number
dir	允许配置的端点方向 / Allowed endpoint direction

Definition at line 155 of file ep.hpp.

      : number_(number), avail_direction_(dir), buffer_(buffer), double_buffer_(buffer)
  {
  }

Member Function Documentation

◆ AddrToEPNumber()

static constexpr EPNumber LibXR::USB::Endpoint::AddrToEPNumber	(	uint8_t	addr,
		Direction &	dir )

inlinestaticconstexpr

端点地址转换为端点号 / Convert endpoint address to endpoint number

Parameters

addr	端点地址 / Endpoint address
dir	返回的端点方向 / Return endpoint direction

Returns: constexpr EPNumber

Definition at line 117 of file ep.hpp.

  {
    dir = addr & 0x80 ? Direction::IN : Direction::OUT;
    return static_cast<EPNumber>(addr & 0x7F);
  }

◆ AvailableDirection()

Direction LibXR::USB::Endpoint::AvailableDirection ( ) const

inline

获取允许配置的端点方向 Get allowed endpoint direction

Definition at line 180 of file ep.hpp.

180{ return avail_direction_; }

◆ ClearStall()

virtual ErrorCode LibXR::USB::Endpoint::ClearStall ( )

pure virtual

清除端点停止状态 Clear endpoint stop status

Returns: ErrorCode

Implemented in LibXR::STM32Endpoint.

◆ Close()

virtual void LibXR::USB::Endpoint::Close ( )

pure virtual

关闭端点（软禁用/资源复位） Close (soft disable)

Implemented in LibXR::STM32Endpoint.

◆ Configure()

virtual void LibXR::USB::Endpoint::Configure ( const Config & cfg )

pure virtual

二次初始化/配置端点协议参数（由Pool/Manager分配后调用） Configure endpoint protocol parameters (call after pool allocation)

Implemented in LibXR::STM32Endpoint.

◆ EPNumberToAddr()

static constexpr uint8_t LibXR::USB::Endpoint::EPNumberToAddr	(	EPNumber	ep,
		Direction	dir )

inlinestaticconstexpr

端点号转换为端点地址 / Convert endpoint number to endpoint address

Parameters

ep	端点号 / Endpoint number
dir	端点方向 / Endpoint direction

Returns: constexpr uint8_t

Definition at line 104 of file ep.hpp.

  {
    ASSERT(dir == Direction::IN || dir == Direction::OUT);
    return static_cast<uint8_t>(ep) | (dir == Direction::IN ? 0x80 : 0x00);
  }

◆ EPNumberToInt8()

static constexpr uint8_t LibXR::USB::Endpoint::EPNumberToInt8 ( EPNumber ep )

inlinestaticconstexpr

端点号转换为uint8_t / Convert endpoint number to uint8_t

Parameters

ep	端点号 / Endpoint number

Returns: constexpr uint8_t

Definition at line 92 of file ep.hpp.

  {
    return static_cast<uint8_t>(ep);
  }

◆ GetActiveLength()

size_t LibXR::USB::Endpoint::GetActiveLength ( )

inline

Definition at line 280 of file ep.hpp.

280{ return double_buffer_.GetActiveLength(); }

LibXR::DoubleBuffer::GetActiveLength

size_t GetActiveLength() const

获取当前活动缓冲区中准备好的数据长度 Gets the size of valid data in active buffer

Definition double_buffer.hpp:116

◆ GetAddress()

uint8_t LibXR::USB::Endpoint::GetAddress ( ) const

inline

获取端点地址（方向 + 号） Get endpoint address (dir + num)

Definition at line 199 of file ep.hpp.

  {
    if (state_ == State::DISABLED)
    {
      return EPNumberToInt8(number_) & 0x0F;
    }
    return EPNumberToAddr(number_, config_.direction);
  }

◆ GetBuffer()

RawData LibXR::USB::Endpoint::GetBuffer ( ) const

inline

获取端点缓冲区 Get endpoint buffer

Returns: RawData

Definition at line 256 of file ep.hpp.

  {
    if (config_.double_buffer)
    {
      return {double_buffer_.ActiveBuffer(), double_buffer_.Size()};
    }
    else
    {
      return buffer_;
    }
  }

◆ GetConfig()

Config & LibXR::USB::Endpoint::GetConfig ( )

inlineprotected

获取当前配置 Get endpoint config

Definition at line 365 of file ep.hpp.

365{ return config_; }

◆ GetDirection()

Direction LibXR::USB::Endpoint::GetDirection ( ) const

inline

获取端点方向 Get endpoint direction

Definition at line 186 of file ep.hpp.

  {
    if (state_ == State::DISABLED)
    {
      return AvailableDirection();
    }
    return config_.direction;
  }

◆ GetNumber()

EPNumber LibXR::USB::Endpoint::GetNumber ( ) const

inline

获取端点号 Get endpoint number

Definition at line 174 of file ep.hpp.

174{ return number_; }

◆ GetState()

State LibXR::USB::Endpoint::GetState ( ) const

inline

获取端点状态 Get endpoint state

Definition at line 212 of file ep.hpp.

212{ return state_; }

◆ GetType()

Type LibXR::USB::Endpoint::GetType ( ) const

inline

获取端点类型 Get endpoint type

Definition at line 226 of file ep.hpp.

226{ return config_.type; }

LibXR::USB::Endpoint::Config::type

Type type

端点类型 / Endpoint type

Definition ep.hpp:142

◆ IsStalled()

bool LibXR::USB::Endpoint::IsStalled ( ) const

inline

是否挂起 / Is endpoint stalled

Returns: true; false

Definition at line 240 of file ep.hpp.

240{ return state_ == State::STALLED; }

◆ MaxPacketSize()

uint16_t LibXR::USB::Endpoint::MaxPacketSize ( ) const

inline

获取最大包长 Get max packet size

Definition at line 232 of file ep.hpp.

232{ return config_.max_packet_size; }

LibXR::USB::Endpoint::Config::max_packet_size

uint16_t max_packet_size

最大包长 / Max packet size

Definition ep.hpp:143

◆ MaxTransferSize()

virtual size_t LibXR::USB::Endpoint::MaxTransferSize ( ) const

inlinevirtual

返回最大可传输字节数 Return the maximum transferable size at this time

默认为最大包长，可在支持 FIFO 优化的平台中重载为动态剩余容量。 Default equals MaxPacketSize; override for FIFO-aware implementation.

Reimplemented in LibXR::STM32Endpoint.

Definition at line 289 of file ep.hpp.

289{ return MaxPacketSize(); }

LibXR::USB::Endpoint::MaxPacketSize

uint16_t MaxPacketSize() const

获取最大包长 Get max packet size

Definition ep.hpp:232

◆ NextEPNumber()

static constexpr EPNumber LibXR::USB::Endpoint::NextEPNumber ( EPNumber ep )

inlinestaticconstexpr

获取下一个端点号 / Get the next endpoint number

Parameters

ep	当前端点号 / Current endpoint number

Returns: constexpr EPNumber

Definition at line 129 of file ep.hpp.

  {
    ASSERT(ep <= EPNumber::EP15);
    return static_cast<EPNumber>(EPNumberToInt8(ep) + 1);
  }

◆ OnTransferCompleteCallback()

void LibXR::USB::Endpoint::OnTransferCompleteCallback	(	bool	in_isr,
		size_t	actual_transfer_size )

inline

Definition at line 336 of file ep.hpp.

  {
    if (GetState() != State::BUSY)
    {
      return;
    }
 
    SetState(State::IDLE);
 
    ConstRawData data = UseDoubleBuffer()
                            ? ConstRawData(GetDirection() == Direction::OUT
                                               ? double_buffer_.ActiveBuffer()
                                               : double_buffer_.PendingBuffer(),
                                           actual_transfer_size)
                            : ConstRawData(buffer_.addr_, actual_transfer_size);
 
    if (UseDoubleBuffer() && GetDirection() == Direction::OUT)
    {
      SwitchBuffer();
    }
 
    on_transfer_complete_.Run(in_isr, data);
  }

◆ SetActiveBlock()

virtual void LibXR::USB::Endpoint::SetActiveBlock ( bool active_block )

inlineprotectedvirtual

设置当前活动缓冲区 Set active buffer

Parameters

active_block true 表示使用第二个缓冲区，false 表示使用第一个缓冲区

Definition at line 384 of file ep.hpp.

  {
    double_buffer_.SetActiveBlock(active_block);
    double_buffer_.EnablePending();
  }

◆ SetActiveLength()

void LibXR::USB::Endpoint::SetActiveLength ( uint16_t len )

inline

Definition at line 278 of file ep.hpp.

278{ double_buffer_.SetActiveLength(len); }

LibXR::DoubleBuffer::SetActiveLength

void SetActiveLength(size_t length)

设置当前活动缓冲区的数据长度 Sets the size of the active buffer

Definition double_buffer.hpp:132

◆ SetOnTransferCompleteCallback()

void LibXR::USB::Endpoint::SetOnTransferCompleteCallback ( Callback< ConstRawData & > cb )

inline

设置传输完成回调 / Set transfer complete callback

Parameters

cb	传输完成回调 / Transfer complete callback

Definition at line 273 of file ep.hpp.

  {
    on_transfer_complete_ = cb;
  }

◆ SetState()

void LibXR::USB::Endpoint::SetState ( State state )

inline

设置端点状态 Set endpoint state

Parameters

state 状态 / State

Definition at line 220 of file ep.hpp.

220{ state_ = state; }

◆ Stall()

virtual ErrorCode LibXR::USB::Endpoint::Stall ( )

pure virtual

停止端点传输 Stop endpoint transfer

Returns: ErrorCode

Implemented in LibXR::STM32Endpoint.

◆ SwitchBuffer()

virtual void LibXR::USB::Endpoint::SwitchBuffer ( )

inlineprotectedvirtual

切换缓冲区 Switch buffer

Definition at line 372 of file ep.hpp.

  {
    double_buffer_.EnablePending();
    double_buffer_.Switch();
  }

◆ Transfer()

virtual ErrorCode LibXR::USB::Endpoint::Transfer ( size_t size )

pure virtual

传输数据 Transfer data

Parameters

size	传输大小 / Transfer size

Returns: ErrorCode

Implemented in LibXR::STM32Endpoint.

◆ TransferZLP()

virtual ErrorCode LibXR::USB::Endpoint::TransferZLP ( )

inlinevirtual

传输空包 Transfer zero length packet

Returns: ErrorCode

Definition at line 334 of file ep.hpp.

334{ return Transfer(0); }

LibXR::USB::Endpoint::Transfer

virtual ErrorCode Transfer(size_t size)=0

传输数据 Transfer data

◆ UseDoubleBuffer()

bool LibXR::USB::Endpoint::UseDoubleBuffer ( ) const

inline

是否使用双缓冲区 / Use double buffer

Returns: true; false

Definition at line 248 of file ep.hpp.

248{ return config_.double_buffer; }

Field Documentation

◆ avail_direction_

Direction LibXR::USB::Endpoint::avail_direction_

private

可配置方向 / Allowed direction

Definition at line 395 of file ep.hpp.

◆ buffer_

LibXR::RawData LibXR::USB::Endpoint::buffer_

private

端点缓冲区 / Endpoint buffer

Definition at line 398 of file ep.hpp.

◆ config_

Config LibXR::USB::Endpoint::config_

private

当前端点配置 / Current configuration

Definition at line 396 of file ep.hpp.

◆ double_buffer_

LibXR::DoubleBuffer LibXR::USB::Endpoint::double_buffer_

private

双缓冲区 / Double buffer

Definition at line 399 of file ep.hpp.

◆ number_

EPNumber LibXR::USB::Endpoint::number_

private

当前端点编号 / Endpoint number

Definition at line 394 of file ep.hpp.

◆ on_transfer_complete_

LibXR::Callback<LibXR::ConstRawData&> LibXR::USB::Endpoint::on_transfer_complete_

private

传输完成回调 / Called when transfer completes

Definition at line 392 of file ep.hpp.

◆ state_

State LibXR::USB::Endpoint::state_ = State::DISABLED

private

当前状态 / Endpoint status

Definition at line 397 of file ep.hpp.

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

src/driver/usb/core/ep.hpp

Data Structures

Public Types

Public Member Functions

Static Public Member Functions

Protected Member Functions

Private Attributes

Detailed Description

Member Enumeration Documentation

◆ Direction

◆ EPNumber

◆ State

◆ Type

Constructor & Destructor Documentation

◆ Endpoint()

Member Function Documentation

◆ AddrToEPNumber()

◆ AvailableDirection()

◆ ClearStall()

◆ Close()

◆ Configure()

◆ EPNumberToAddr()

◆ EPNumberToInt8()

◆ GetActiveLength()

◆ GetAddress()

◆ GetBuffer()

◆ GetConfig()

◆ GetDirection()

◆ GetNumber()

◆ GetState()

◆ GetType()

◆ IsStalled()

◆ MaxPacketSize()

◆ MaxTransferSize()

◆ NextEPNumber()

◆ OnTransferCompleteCallback()

◆ SetActiveBlock()

◆ SetActiveLength()

◆ SetOnTransferCompleteCallback()

◆ SetState()

◆ Stall()

◆ SwitchBuffer()

◆ Transfer()

◆ TransferZLP()

◆ UseDoubleBuffer()

Field Documentation

◆ avail_direction_

◆ buffer_

◆ config_

◆ double_buffer_

◆ number_

◆ on_transfer_complete_

◆ state_