ExternalIRQ Class Reference

Basic handler for one external IRQ, handles control register. More...

#include <externalirq.h>

Inheritance diagram for ExternalIRQ:

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Collaboration diagram for ExternalIRQ:

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List of all members.

Public Member Functions
	ExternalIRQ (IOSpecialReg *ctrl, int ctrlOffset, int ctrlBits)
virtual unsigned char	set_from_reg (const IOSpecialReg *reg, unsigned char nv)
virtual unsigned char	get_from_client (const IOSpecialReg *reg, unsigned char v)
Protected Member Functions
void	setHandlerIndex (ExternalIRQHandler *h, int idx)
	register handler and index for signaling interrupt
void	fireInterrupt (void)
	fire a interrupt
virtual void	ResetMode (void)
	Reset mode.
virtual void	ChangeMode (unsigned char m)
	Handle change of control register.
virtual bool	fireAgain (void)
	does the interrupt source fire again? (for interrupt on level)
virtual bool	mustSetFlagOnFire (void)
	does fire interrupt set the interrupt flag? (level interrupt does this not!)
Protected Attributes
int	handlerIndex
	my own index on handler instance
ExternalIRQHandler *	handler
	reference to IRQ handler
int	bitshift
	how many bits to shift to get mode from control register
unsigned char	mask
	mask for extract mode from control register
unsigned char	mode
	control mode from control register
Friends
class	ExternalIRQHandler

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Detailed Description

Basic handler for one external IRQ, handles control register.

Definition at line 77 of file externalirq.h.

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Constructor & Destructor Documentation

ExternalIRQ::ExternalIRQ	(	IOSpecialReg *	ctrl,
		int	ctrlOffset,
		int	ctrlBits
	)

Definition at line 141 of file externalirq.cpp.

References bitshift, IOSpecialReg::connectSRegClient(), handler, handlerIndex, and mask.

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Member Function Documentation

virtual void ExternalIRQ::ChangeMode

(

unsigned char

m

)

[inline, protected, virtual]

Handle change of control register.

Reimplemented in ExternalIRQSingle.

Definition at line 93 of file externalirq.h.

References mode.

Referenced by set_from_reg().

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virtual bool ExternalIRQ::fireAgain

(

void

)

[inline, protected, virtual]

does the interrupt source fire again? (for interrupt on level)

Reimplemented in ExternalIRQSingle.

Definition at line 95 of file externalirq.h.

void ExternalIRQ::fireInterrupt

(

void

)

[inline, protected]

fire a interrupt

Definition at line 89 of file externalirq.h.

References ExternalIRQHandler::fireInterrupt(), handler, and handlerIndex.

Referenced by ExternalIRQPort::PinStateHasChanged(), and ExternalIRQSingle::PinStateHasChanged().

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unsigned char ExternalIRQ::get_from_client	(	const IOSpecialReg *	reg,
		unsigned char	v
	)			[virtual]

Informs your class, that a read access from IO register happens

Parameters:

v

the internal saved register value (but maybe changed by other clients)

Returns:

v, if nothing is changed or your changed value

Implements IOSpecialRegClient.

Definition at line 155 of file externalirq.cpp.

References bitshift, mask, and mode.

virtual bool ExternalIRQ::mustSetFlagOnFire

(

void

)

[inline, protected, virtual]

does fire interrupt set the interrupt flag? (level interrupt does this not!)

Reimplemented in ExternalIRQSingle.

Definition at line 97 of file externalirq.h.

virtual void ExternalIRQ::ResetMode

(

void

)

[inline, protected, virtual]

Reset mode.

Definition at line 91 of file externalirq.h.

References mode.

Referenced by ExternalIRQPort::ExternalIRQPort(), and ExternalIRQSingle::ExternalIRQSingle().

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unsigned char ExternalIRQ::set_from_reg	(	const IOSpecialReg *	reg,
		unsigned char	nv
	)			[virtual]

Informs your class, that a write access to IO register is happen

Parameters:

	reg	caller register instance
	nv	the value, which is written to IO register (but maybe changed by other clients)

Returns:

nv, if nothing is changed or your changed value

Implements IOSpecialRegClient.

Definition at line 150 of file externalirq.cpp.

References bitshift, ChangeMode(), and mask.

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void ExternalIRQ::setHandlerIndex	(	ExternalIRQHandler *	h,
		int	idx
	)			[inline, protected]

register handler and index for signaling interrupt

Definition at line 87 of file externalirq.h.

References handler, and handlerIndex.

Referenced by ExternalIRQHandler::registerIrq().

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Friends And Related Function Documentation

friend class ExternalIRQHandler [friend]

Definition at line 99 of file externalirq.h.

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Member Data Documentation

int ExternalIRQ::bitshift [protected]

how many bits to shift to get mode from control register

Definition at line 82 of file externalirq.h.

Referenced by ExternalIRQ(), get_from_client(), and set_from_reg().

ExternalIRQHandler* ExternalIRQ::handler [protected]

reference to IRQ handler

Definition at line 81 of file externalirq.h.

Referenced by ExternalIRQ(), fireInterrupt(), and setHandlerIndex().

int ExternalIRQ::handlerIndex [protected]

my own index on handler instance

Definition at line 80 of file externalirq.h.

Referenced by ExternalIRQ(), fireInterrupt(), and setHandlerIndex().

unsigned char ExternalIRQ::mask [protected]

mask for extract mode from control register

Definition at line 83 of file externalirq.h.

Referenced by ExternalIRQ(), get_from_client(), and set_from_reg().

unsigned char ExternalIRQ::mode [protected]

control mode from control register

Definition at line 84 of file externalirq.h.

Referenced by ChangeMode(), ExternalIRQSingle::ChangeMode(), ExternalIRQSingle::fireAgain(), get_from_client(), ExternalIRQSingle::mustSetFlagOnFire(), ExternalIRQPort::PinStateHasChanged(), ExternalIRQSingle::PinStateHasChanged(), and ResetMode().

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

• /home/thomas/development/delivery-check/repo/src/externalirq.h
• /home/thomas/development/delivery-check/repo/src/externalirq.cpp