ARM64IO Class Reference

Input/Output operations specific to the ARM architecture. More...

#include <ARM64IO.h>

Inheritance diagram for ARM64IO:

Public Member Functions
void	write (u64 reg, u32 data)
	write to memory mapped I/O register
u32	read (u64 reg) const
	read from memory mapped I/O register
void	read (Address addr, Size count, void *buf) const
	Read a number of 32-bit values.
void	write (Address addr, Size count, const void *buf)
	Write a number of 32-bit values.
void	set (Address addr, u32 data)
	Set bits in memory mapped register.
void	unset (Address addr, u32 data)
	Unset bits in memory mapped register.
Public Member Functions inherited from IO
	IO ()
	Constructor.
Address	getBase () const
	Get memory I/O base offset.
void	setBase (const Address base)
	Set memory I/O base offset.
Result	map (Address phys, Size size=4096, Memory::Access access=Memory::Readable|Memory::Writable|Memory::User)
	Map I/O address space.
Result	unmap ()
	Unmap I/O address space.

Additional Inherited Members
Public Types inherited from IO
enum	Result { Success , MapFailure , OutOfMemory }
	Result codes. More...
Protected Attributes inherited from IO
Address	m_base
	memory I/O base offset is added to each I/O address.
Memory::Range	m_range
	Memory range for performing I/O mappings.

Detailed Description

Input/Output operations specific to the ARM architecture.

Definition at line 40 of file ARM64IO.h.

Member Function Documentation

read() [1/2]

void ARM64IO::read ( Address  addr, Size  count, void *  buf  ) const

inline

Read a number of 32-bit values.

Parameters

addr	Address of the starting 32-bit value.
count	Number of bytes to read.
buf	Output buffer.

Definition at line 80 of file ARM64IO.h.

References read().

read() [2/2]

u32 ARM64IO::read ( u64  reg ) const

inline

read from memory mapped I/O register

Parameters

reg	Address to read

Returns

64-bit value

Definition at line 62 of file ARM64IO.h.

References dmb, and IO::m_base.

Referenced by read(), set(), and unset().

set()

void ARM64IO::set ( Address  addr, u32  data  )

inline

Set bits in memory mapped register.

Parameters

addr	Address of the register to write.
data	64-bit value containing the bits to set (bitwise or).

Definition at line 109 of file ARM64IO.h.

References read(), and write().

unset()

void ARM64IO::unset ( Address  addr, u32  data  )

inline

Unset bits in memory mapped register.

Parameters

addr	Address of the register to write.
data	64-bit value containing the bits to set (bitwise or).

Definition at line 122 of file ARM64IO.h.

References read(), and write().

write() [1/2]

void ARM64IO::write ( Address  addr, Size  count, const void *  buf  )

inline

Write a number of 32-bit values.

Parameters

addr	Address of the starting 32-bit value.
count	Number of bytes to write.
buf	Input buffer.

Definition at line 95 of file ARM64IO.h.

References write().

write() [2/2]

void ARM64IO::write ( u64  reg, u32  data  )

inline

write to memory mapped I/O register

Definition at line 46 of file ARM64IO.h.

References dmb, and IO::m_base.

Referenced by set(), unset(), and write().

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

• lib/libarch/arm64/ARM64IO.h