#include <Device.h>

Collaboration diagram for Device::Address:

Public Member Functions
	Address (const String &n, uintptr_t a, size_t s, bool io, size_t pad=1)

void	map (size_t forcedSize=0, bool bUser=false, bool bWriteCombine=false, bool bWriteThrough=false)

Public Attributes
String	m_Name

uintptr_t	m_Address

size_t	m_Size

bool	m_IsIoSpace

IoBase *	m_Io

size_t	m_Padding

Private Member Functions
	Address (const Address &)

Address &	operator= (const Address &)

Private Attributes
bool	m_bMapped

Detailed Description

Each device may have one or more disjoint regions of address space. This can be in I/O space or memory space.

Definition at line 89 of file Device.h.

Constructor & Destructor Documentation

◆ Address()

Device::Address::Address	(	const String &	n,
		uintptr_t	a,
		size_t	s,
		bool	io,
		size_t	pad = `1`
	)

Constructor, takes arguments and assigns them blindly to member variables, then creates the IoPort or MemoryMappedIO instance.

Definition at line 305 of file Device.cc.

References IoPort::allocate(), EMIT_IF, PhysicalMemoryManager::getPageSize(), m_Io, m_IsIoSpace, and m_Name.

◆ ~Address()

Device::Address::~Address ( )

Definition at line 375 of file Device.cc.

Member Function Documentation

◆ map()

void Device::Address::map	(	size_t	forcedSize = `0`,
		bool	bUser = `false`,
		bool	bWriteCombine = `false`,
		bool	bWriteThrough = `false`
	)

Actually maps this address into memory if not already done.

Definition at line 334 of file Device.cc.

References PhysicalMemoryManager::allocateRegion(), VirtualAddressSpace::CacheDisable, PhysicalMemoryManager::continuous, EMIT_IF, PhysicalMemoryManager::force, PhysicalMemoryManager::getPageSize(), Hex, PhysicalMemoryManager::instance(), VirtualAddressSpace::KernelMode, PhysicalMemoryManager::nonRamMemory, VirtualAddressSpace::Write, VirtualAddressSpace::WriteCombine, and VirtualAddressSpace::WriteThrough.

Member Data Documentation

◆ m_Address

uintptr_t Device::Address::m_Address

The base of the address range, as the processor sees it (all parental address space transformations applied)

Definition at line 102 of file Device.h.

Referenced by Device::Device(), and PciAtaController::PciAtaController().

◆ m_bMapped

bool Device::Address::m_bMapped

private

Definition at line 119 of file Device.h.

◆ m_Io

IoBase* Device::Address::m_Io

Either IoPort or MemoryMappedIO depending on the address space type.

Definition at line 110 of file Device.h.

Referenced by Address(), Device::Device(), PciAtaController::PciAtaController(), and Device::removeIoMappings().

◆ m_IsIoSpace

bool Device::Address::m_IsIoSpace

True if the address range is in I/O space, false if in memory space

Definition at line 107 of file Device.h.

Referenced by Address(), and Device::Device().

◆ m_Name

String Device::Address::m_Name

A textual identifier for this address range.

Definition at line 99 of file Device.h.

Referenced by Address(), and Device::Device().

◆ m_Padding

size_t Device::Address::m_Padding

Some devices' registers aren't contiguous in memory, but padded to boundaries.

Definition at line 113 of file Device.h.

Referenced by Device::Device().

◆ m_Size

size_t Device::Address::m_Size

The length of the address range.

Definition at line 104 of file Device.h.