X86IsaDma Class Reference

#include <X86IsaDma.h>

Inheritance diagram for X86IsaDma:

Collaboration diagram for X86IsaDma:

Public Types
enum	TransferModes {   SelfTest = 0, Write = (1 << 2), Read = (2 << 2), Cascade = (3 << 2),   AutoInit = (1 << 4), Increment = 0, Decrement = (1 << 5), OnDemand = 0,   Single = (1 << 6), Block = (2 << 6) }

Public Member Functions
virtual bool	initTransfer (uint8_t channel, uint8_t mode, size_t length, uintptr_t addr)
	Initialises an operation. More...

Static Public Member Functions
static X86IsaDma &	instance ()
Static Public Member Functions inherited from IsaDma
static IsaDma &	instance ()

Private Member Functions
void	resetFlipFlop (uint8_t chan)
void	resetHard (uint8_t chan)
void	unmaskAll ()
bool	internalSetup (uint8_t channel, size_t length, uintptr_t addr)

Private Attributes
IoPort	m_Io

Static Private Attributes
static X86IsaDma	m_Instance

Detailed Description

x86 ISA DMA implementations. It is assumed drivers will be notified by some other means that their data is ready. This class is merely designed to prepare operations on the DMA controller without requiring drivers to do it themselves.

Definition at line 111 of file X86IsaDma.h.

Member Function Documentation

bool X86IsaDma::initTransfer ( uint8_t  channel, uint8_t  mode, size_t  length, uintptr_t  addr  )

virtual

Initialises an operation.

Todo:

Extra flags to control modes and things

Implements IsaDma.

Definition at line 24 of file X86IsaDma.cc.

References FATAL, NOTICE, and IoPort::write8().

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

• X86IsaDma.h
• X86IsaDma.cc