L4drivers::Register_tmpl< BITS, BLOCK > Class Template Reference

Single hardware register inside a Register_block_base interface. More...

#include <hw_register_block>

Inheritance diagram for L4drivers::Register_tmpl< BITS, BLOCK >:

Collaboration diagram for L4drivers::Register_tmpl< BITS, BLOCK >:

Public Member Functions
Register_tmpl &	operator= (value_type val)
	write val into the hardware register.
void	write (value_type val)
	write val into the hardware register.
value_type	set (value_type set_bits)
	set bits in set_bits in the hardware register.
value_type	clear (value_type clear_bits)
	clears bits in clear_bits in the hardware register.
value_type	modify (value_type clear_bits, value_type set_bits)
	clears bits in clear_bits and sets bits in set_bits in the hardware register.
Public Member Functions inherited from L4drivers::Ro_register_tmpl< BITS, BLOCK >
	operator value_type () const
	read the value from the hardware register.
value_type	read () const
	read the value from the hardware register.

Detailed Description

template<unsigned BITS, typename BLOCK>
class L4drivers::Register_tmpl< BITS, BLOCK >

Single hardware register inside a Register_block_base interface.

Template Parameters

BITS	The access width for the register in bits.
BLOCK	the type of the Register_block_base interface.

Note

Objects of this type must be used only in temporary contexts not in global, class, or object scope.

Definition at line 237 of file hw_register_block.

Member Function Documentation

clear()

template<unsigned BITS, typename BLOCK>

value_type L4drivers::Register_tmpl< BITS, BLOCK >::clear ( value_type clear_bits )

inline

clears bits in clear_bits in the hardware register.

Parameters

clear_bits

bits to be cleared within the hardware register.

This is a read-modify-write function that does a logical and of the old value from the register with the negated value of clear_bits.

unsigned old_value = read();
write(old_value & ~clear_bits);

Definition at line 290 of file hw_register_block.

Referenced by L4drivers::Register_tmpl< MAX_BITS, Block >::clear().

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modify()

template<unsigned BITS, typename BLOCK>

value_type L4drivers::Register_tmpl< BITS, BLOCK >::modify ( value_type clear_bits, value_type set_bits )

inline

clears bits in clear_bits and sets bits in set_bits in the hardware register.

Parameters

clear_bits	bits to be cleared within the hardware register.
set_bits	bits to set in the hardware register.

This is a read-modify-write function that first does a logical and of the old value from the register with the negated value of clear_bits and then does a logical or with set_bits.

unsigned old_value = read();
write((old_value & ~clear_bits) | set_bits);

Definition at line 308 of file hw_register_block.

Referenced by L4drivers::Register_tmpl< MAX_BITS, Block >::modify().

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operator=()

template<unsigned BITS, typename BLOCK>

Register_tmpl & L4drivers::Register_tmpl< BITS, BLOCK >::operator= ( value_type val )

inline

write val into the hardware register.

Parameters

val	the value to write into the hardware register.

Definition at line 252 of file hw_register_block.

set()

template<unsigned BITS, typename BLOCK>

value_type L4drivers::Register_tmpl< BITS, BLOCK >::set ( value_type set_bits )

inline

set bits in set_bits in the hardware register.

Parameters

set_bits

bits to be set within the hardware register.

This is a read-modify-write function that does a logical or of the old value from the register with set_bits.

unsigned old_value = read();
write(old_value | set_bits);

Definition at line 274 of file hw_register_block.

Referenced by L4drivers::Register_tmpl< MAX_BITS, Block >::set().

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write()

template<unsigned BITS, typename BLOCK>

void L4drivers::Register_tmpl< BITS, BLOCK >::write ( value_type val )

inline

write val into the hardware register.

Parameters

val	the value to write into the hardware register.

Definition at line 259 of file hw_register_block.

Referenced by L4drivers::Register_tmpl< MAX_BITS, Block >::operator=(), and L4drivers::Register_tmpl< MAX_BITS, Block >::write().

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

• pkg/drivers-frst/include/hw_register_block