Bit packer: combines multiple typed inputs into a single packed output bitstream. More...

#include <bitpack.hxx>

Inheritance diagram for dawn::CProgBitPack:

Collaboration diagram for dawn::CProgBitPack:

Public Types
enum	{ CMD_RESET = 0 , CMD_TRIGGER1 = 1 , CMD_TRIGGER2 = 2 , CMD_TRIGGER3 = 3 }
	Control command identifiers for control() More...

enum
	Default descriptor validation failure codes. More...

enum
	Common configuration IDs.

enum	EObjectState { STATE_STOPPED = 0 , STATE_RUNNING = 1 }
	Object operational state returned by getState() More...

enum	EProgClass { PROG_CLASS_ANY = 0 , PROG_CLASS_STATS_MIN = 1 , PROG_CLASS_STATS_MAX = 2 , PROG_CLASS_STATS_AVG = 3 , PROG_CLASS_STATS_SUM = 4 , PROG_CLASS_STATS_COUNT = 5 , PROG_CLASS_STATS_RMS = 8 , PROG_CLASS_SAMPLING = 6 , PROG_CLASS_DUMMY = 7 , PROG_CLASS_ADJUST = 10 , PROG_CLASS_GATEWAY = 11 , PROG_CLASS_LATEST = 12 , PROG_CLASS_REDIRECT = 13 , PROG_CLASS_MOVING_AVG = 14 , PROG_CLASS_IIR_FILTER = 15 , PROG_CLASS_THRESHOLD = 16 , PROG_CLASS_THRESHOLD_VALUE = 17 , PROG_CLASS_BUFFER = 18 , PROG_CLASS_SEQUENCER = 19 , PROG_CLASS_BITSPLIT = 20 , PROG_CLASS_TOGGLE = 21 , PROG_CLASS_COUNTER = 22 , PROG_CLASS_SWITCH = 23 , PROG_CLASS_EXPRESSION = 24 , PROG_CLASS_SELECTOR = 25 , PROG_CLASS_BITPACK = 26 , PROG_CLASS_CONFIGWRITER = 27 , PROG_CLASS_VECPACK = 28 , PROG_CLASS_VECSPLIT = 29 , PROG_CLASS_MANYTOONE = 30 , PROG_CLASS_ONETOMANY = 31 , PROG_CLASS_IOMUX = 32 , PROG_CLASS_IODEMUX = 33 , PROG_CLASS_USER = 511 , PROG_CLASS_LAST }
	Program object class types. More...

Public Member Functions
int	configure ()
	Configure object from descriptor data.

int	deinit ()
	De-initialize object.

int	doStart ()
	Start implementation hook.

int	doStop ()
	Stop implementation hook.

bool	getCfgFlag () const
	Check if configuration flag is set.

uint16_t	getCls () const
	Get object class field.

CDescObject &	getDesc ()
	Get descriptor object for this object.

uint8_t	getDtype () const
	Get data type field.

size_t	getDtypeSize () const
	Get size of this object's data type.

uint8_t	getFlags () const
	Get type-specific flags field.

SObjectId::UObjectId	getId () const
	Get object identifier as union structure.

SObjectId::ObjectId	getIdV () const
	Get object identifier as raw 32-bit value.

CIOCommon *	getIO (SObjectId::ObjectId id)
	Get an I/O object by ID.

const std::map< SObjectId::ObjectId, CIOCommon * > &	getIOMap () const
	Get the I/O map for this object.

int	getObjConfig (SObjectCfg::ObjectCfgId objcfg, uint32_t *data, size_t len)
	Get object configuration item.

CObject *	getObject (SObjectId::ObjectId id)
	Get an object by ID.

uint16_t	getPriv () const
	Get instance/private data field.

virtual EObjectState	getState () const
	Get current operational state.

uint8_t	getType () const
	Get object type field.

bool	hasThread () const
	Check if a background thread is active.

int	init ()
	One-time initialize object after bindings are resolved.

int	setObjConfig (SObjectCfg::ObjectCfgId objcfg, uint32_t *data, size_t len)
	Set object configuration item.

void	setObjectMapItem (SObjectId::ObjectId id, CObject *obj)
	Set an item in the object map.

int	start ()
	Start object.

int	stop ()
	Stop object.

virtual int	trigger (uint8_t cmd)
	Execute a trigger command.

Static Public Member Functions
static int	descValidDefault (const uint32_t *data, size_t len)
	Default descriptor validation method.

static int	validateDesc (const uint32_t *desc, size_t len)
	Validate entire descriptor.

Protected Member Functions
virtual int	onSetObjConfig (SObjectCfg::ObjectCfgId objcfg, uint32_t *data, size_t len)
	Pre-update hook for runtime configuration writes.

Detailed Description

Bit packer: combines multiple typed inputs into a single packed output bitstream.

Each input contributes its logical bitstream starting at the configured bit offset. For BOOL inputs that is one bit per element; for other fixed-width scalar types it is the raw element bit pattern. When any notifying input changes, the packed output is rebuilt and written to the output IO.

This is the inverse of CProgBitSplit.

Definition at line 35 of file bitpack.hxx.

Member Enumeration Documentation

◆ anonymous enum

anonymous enum

inherited

Control command identifiers for control()

Enumerator
CMD_RESET	Reset object internal state.
CMD_TRIGGER1	Object-specific trigger slot 1.
CMD_TRIGGER2	Object-specific trigger slot 2.
CMD_TRIGGER3	Object-specific trigger slot 3.

Definition at line 40 of file object.hxx.

◆ anonymous enum

anonymous enum

inherited

Default descriptor validation failure codes.

Negative values identify which length check failed in descValidDefault().

Definition at line 314 of file object.hxx.

◆ EObjectState

enum dawn::CObject::EObjectState

inherited

Object operational state returned by getState()

Enumerator
STATE_STOPPED	Object is stopped.
STATE_RUNNING	Object is running.

Definition at line 32 of file object.hxx.

◆ EProgClass

enum dawn::CProgCommon::EProgClass

inherited

Program object class types.

Enumerator
PROG_CLASS_ANY	Generic PROG type.
PROG_CLASS_STATS_MIN	Minimum value tracker.
PROG_CLASS_STATS_MAX	Maximum value tracker.
PROG_CLASS_STATS_AVG	Running average calculator.
PROG_CLASS_STATS_SUM	Sum accumulator.
PROG_CLASS_STATS_COUNT	Sample counter.
PROG_CLASS_STATS_RMS	Running RMS (root mean square) calculator.
PROG_CLASS_SAMPLING	Periodic data sampler.
PROG_CLASS_DUMMY	Dummy program (test/helper).
PROG_CLASS_ADJUST	Scale/offset adjustment.
PROG_CLASS_GATEWAY	Protocol-to-protocol IO gateway.
PROG_CLASS_LATEST	Cache latest notified sample for fetch-based readers.
PROG_CLASS_REDIRECT	Generic input-to-output routing bridge.
PROG_CLASS_MOVING_AVG	Moving average filter.
PROG_CLASS_IIR_FILTER	First-order IIR filter.
PROG_CLASS_THRESHOLD	Threshold and hysteresis comparator.
PROG_CLASS_THRESHOLD_VALUE	Threshold comparator returning gated source value.
PROG_CLASS_BUFFER	Notify-driven history capture buffer.
PROG_CLASS_SEQUENCER	Periodic state sequencer.
PROG_CLASS_USER	User-defined PROG types start here.

Definition at line 31 of file common.hxx.

Member Function Documentation

◆ configure()

int CProgBitPack::configure ( )

virtual

Configure object from descriptor data.

Called during framework setup before dependency binding. Implementations should parse/validate descriptor configuration and store object settings, but avoid one-time allocations that depend on bound objects.

Returns: OK on success, negative error code on failure.

Reimplemented from dawn::CObject.

Definition at line 133 of file bitpack.cxx.

References dawn::CObject::getDesc().

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◆ deinit()

int CProgBitPack::deinit ( )

virtual

De-initialize object.

Clean up resources allocated during init().

Returns: OK on success, negative error code on failure.

Reimplemented from dawn::CObject.

Definition at line 220 of file bitpack.cxx.

References doStop().

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◆ descValidDefault()

int CObject::descValidDefault	(	const uint32_t *	data,
		size_t	len
	)

staticinherited

Default descriptor validation method.

Provides basic validation that only checks if descriptor lengths are correct.

Parameters

data	Descriptor data pointer.
len	Length of descriptor data in 32-bit words.

Returns: OK on success, negative error code indicating validation stage.

Definition at line 42 of file object.cxx.

References dawn::SObjectCfg::UObjectCfgId::s, dawn::SObjectCfg::UObjectCfgId::size, and dawn::SObjectCfg::UObjectCfgId::v.

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◆ doStart()

int CProgBitPack::doStart ( )

virtual

Start implementation hook.

Override in derived classes instead of start().

Returns: OK on success, negative error code on failure.

Reimplemented from dawn::CObject.

Definition at line 257 of file bitpack.cxx.

◆ doStop()

int CProgBitPack::doStop ( )

virtual

Stop implementation hook.

Override in derived classes instead of stop().

Returns: OK on success, negative error code on failure.

Reimplemented from dawn::CObject.

Definition at line 302 of file bitpack.cxx.

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◆ getCfgFlag()

bool CObject::getCfgFlag ( ) const

inherited

Check if configuration flag is set.

Returns: True if this object has configuration data.

Definition at line 160 of file object.cxx.

References dawn::CDescObject::getSize().

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◆ getCls()

uint16_t CObject::getCls ( ) const

inherited

Get object class field.

Returns: Object class identifier (0-511).

Definition at line 170 of file object.cxx.

References dawn::SObjectId::UObjectId::cls, and dawn::SObjectId::UObjectId::s.

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◆ getDesc()

CDescObject & CObject::getDesc ( )

inherited

Get descriptor object for this object.

Returns: Reference to associated CDescObject.

Definition at line 190 of file object.cxx.

◆ getDtype()

uint8_t CObject::getDtype ( ) const

inherited

Get data type field.

Returns: Data type (DTYPE_UINT32, DTYPE_FLOAT, etc.).

Definition at line 175 of file object.cxx.

References dawn::SObjectId::UObjectId::dtype, and dawn::SObjectId::UObjectId::s.

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◆ getDtypeSize()

size_t CObject::getDtypeSize ( ) const

inherited

Get size of this object's data type.

Returns: Size in bytes for the configured data type.

Definition at line 195 of file object.cxx.

References dawn::SObjectId::getDtypeSize_(), and dawn::CDescObject::getObjectDtype().

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◆ getFlags()

uint8_t CObject::getFlags ( ) const

inherited

Get type-specific flags field.

Returns: Flags value (0-3).

Definition at line 180 of file object.cxx.

References dawn::SObjectId::UObjectId::flags, and dawn::SObjectId::UObjectId::s.

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◆ getId()

SObjectId::UObjectId CObject::getId ( ) const

inherited

Get object identifier as union structure.

Returns: Reference to UObjectId structure.

Definition at line 150 of file object.cxx.

◆ getIdV()

SObjectId::ObjectId CObject::getIdV ( ) const

inherited

Get object identifier as raw 32-bit value.

Returns: ObjectID as uint32_t.

Definition at line 155 of file object.cxx.

References dawn::SObjectId::UObjectId::v.

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◆ getIO()

CIOCommon * CBindableObject::getIO ( SObjectId::ObjectId id )

inherited

Get an I/O object by ID.

Parameters

id	Object ID to retrieve.

Returns: Pointer to the I/O object, or nullptr if not found.

Definition at line 41 of file bindable.cxx.

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◆ getIOMap()

const std::map< SObjectId::ObjectId, CIOCommon * > & CBindableObject::getIOMap ( ) const

inherited

Get the I/O map for this object.

Returns: Pointer to a map of object IDs to I/O objects.

Definition at line 18 of file bindable.cxx.

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◆ getObjConfig()

int CObject::getObjConfig	(	SObjectCfg::ObjectCfgId	objcfg,
		uint32_t *	data,
		size_t	len
	)

inherited

Get object configuration item.

Retrieves configuration data for this object.

Parameters

objcfg	Configuration ID specifying which config item to retrieve.
data	Pointer to buffer for configuration data.
len	Length of buffer in 32-bit words.

Returns: OK on success, negative error code on failure.

Definition at line 240 of file object.cxx.

References dawn::SObjectCfg::SObjectCfgItem::data, dawn::SObjectCfg::objectCfgGetSize(), and dawn::CDescObject::objectCfgItemId().

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◆ getObject()

CObject * CBindableObject::getObject ( SObjectId::ObjectId id )

inherited

Get an object by ID.

Parameters

id	Object ID to retrieve.

Returns: Pointer to the object, or nullptr if not found.

Definition at line 52 of file bindable.cxx.

References dawn::CBindableObject::getIO(), dawn::SObjectId::objectIdGetType(), and dawn::SObjectId::OBJTYPE_IO.

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◆ getPriv()

uint16_t CObject::getPriv ( ) const

inherited

Get instance/private data field.

Returns: Instance ID (0-16383).

Definition at line 185 of file object.cxx.

References dawn::SObjectId::UObjectId::priv, and dawn::SObjectId::UObjectId::s.

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◆ getState()

virtual EObjectState dawn::CObject::getState ( ) const

inlinevirtualinherited

Get current operational state.

Default returns STATE_RUNNING after successful start(), STATE_STOPPED otherwise. Objects with richer states (e.g. paused) should override.

Returns: Current EObjectState value.

Definition at line 183 of file object.hxx.

References dawn::CObject::STATE_RUNNING, and dawn::CObject::STATE_STOPPED.

◆ getType()

uint8_t CObject::getType ( ) const

inherited

Get object type field.

Returns: Object type (OBJTYPE_IO, OBJTYPE_PROTO, OBJTYPE_PROG).

Definition at line 165 of file object.cxx.

References dawn::SObjectId::UObjectId::s, and dawn::SObjectId::UObjectId::type.

◆ hasThread()

bool CProgBitPack::hasThread ( ) const

virtual

Check if a background thread is active.

Used by Dawn's main loop to detect when clean exit is possible. Objects without a background thread must return false. Independent of operational state tracked via getState().

Returns: True if a background thread is active, false otherwise.

Reimplemented from dawn::CObject.

Definition at line 321 of file bitpack.cxx.

◆ init()

int CProgBitPack::init ( )

virtual

One-time initialize object after bindings are resolved.

Called once during framework setup after dependency binding. Allocate lifetime resources here (buffers, register maps, etc.).

Returns: OK on success, negative error code on failure.

Reimplemented from dawn::CObject.

Definition at line 138 of file bitpack.cxx.

References dawn::CIOCommon::ddata_alloc(), dawn::CObject::getDtype(), dawn::CObject::getDtypeSize(), dawn::CBindableObject::getIO(), and dawn::CIOCommon::isRead().

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◆ onSetObjConfig()

virtual int dawn::CObject::onSetObjConfig	(	SObjectCfg::ObjectCfgId	objcfg,
		uint32_t *	data,
		size_t	len
	)

inlineprotectedvirtualinherited

Pre-update hook for runtime configuration writes.

Called by setObjConfig() before descriptor-backed storage is updated. Derived classes may validate incoming data and prepare/apply runtime side effects. Returning a negative error rejects the update.

Parameters

objcfg	Configuration ID that will be updated.
data	Pointer to new config words.
len	Number of config words.

Returns: OK on success, or negative error code to reject update.

Reimplemented in dawn::CIOAdcStream, dawn::CIOAdcSync, and dawn::CIOPwm.

Definition at line 386 of file object.hxx.

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◆ setObjConfig()

int CObject::setObjConfig	(	SObjectCfg::ObjectCfgId	objcfg,
		uint32_t *	data,
		size_t	len
	)

inherited

Set object configuration item.

Updates a configuration item for this object.

Parameters

objcfg	Configuration ID specifying which config item to update.
data	Pointer to configuration data.
len	Length of configuration data in 32-bit words.

Returns: OK on success, negative error code on failure.

Definition at line 200 of file object.cxx.

References dawn::SObjectCfg::SObjectCfgItem::data, dawn::SObjectCfg::objectCfgGetRw(), dawn::SObjectCfg::objectCfgGetSize(), dawn::CDescObject::objectCfgItemId(), and dawn::CObject::onSetObjConfig().

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◆ setObjectMapItem()

void CBindableObject::setObjectMapItem	(	SObjectId::ObjectId	id,
		CObject *	obj
	)

inherited

Set an item in the object map.

Parameters

id	Object ID to set.
obj	Object pointer to associate with the ID.

Definition at line 23 of file bindable.cxx.

References dawn::SObjectId::objectIdGetType(), and dawn::SObjectId::OBJTYPE_IO.

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◆ start()

int dawn::CObject::start ( )

inlineinherited

Start object.

Tracks operational state and calls doStart(). This phase may run many times during an object's lifetime and should not perform one-time allocation. Sets started on successful doStart() return.

Returns: OK on success, negative error code on failure.

Definition at line 116 of file object.hxx.

References dawn::CObject::doStart().

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◆ stop()

int dawn::CObject::stop ( )

inlineinherited

Stop object.

Tracks operational state and calls doStop(). This phase may run many times during an object's lifetime and should not perform one-time deallocation. Always clears started regardless of doStop() return value.

Returns: OK on success, negative error code on failure.

Definition at line 145 of file object.hxx.

References dawn::CObject::doStop().

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◆ trigger()

virtual int dawn::CObject::trigger ( uint8_t cmd )

inlinevirtualinherited

Execute a trigger command.

Parameters

cmd	Command identifier (EObjectCmd value).

Returns: OK on success, -ENOTSUP if not supported.

Reimplemented in dawn::CIOAdcFetch, dawn::CIOAdcStream, dawn::CIOAdcSync, dawn::CIOEncoder, dawn::CIOEncoderIndex, dawn::CIOPwm, dawn::CProgBuffer, dawn::CProgCounter, dawn::CProgProcess, dawn::CProgSequencer, dawn::CProgThresholdBase, and dawn::CProgToggle.

Definition at line 195 of file object.hxx.

◆ validateDesc()

int CObject::validateDesc	(	const uint32_t *	desc,
		size_t	len
	)

staticinherited

Validate entire descriptor.

Validates a descriptor binary object-by-object using default checks.

Parameters

desc	Descriptor binary pointer.
len	Descriptor length in 32-bit words.

Returns: OK on success, negative error code indicating validation stage.

Definition at line 123 of file object.cxx.

References dawn::CObject::descValidDefault().

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

dawn/include/dawn/prog/bitpack.hxx
dawn/src/prog/bitpack.cxx

Public Types

Public Member Functions

Static Public Member Functions

Protected Member Functions

Detailed Description

Member Enumeration Documentation

◆ anonymous enum

◆ anonymous enum

◆ EObjectState

◆ EProgClass

Member Function Documentation

◆ configure()

◆ deinit()

◆ descValidDefault()

◆ doStart()

◆ doStop()

◆ getCfgFlag()

◆ getCls()

◆ getDesc()

◆ getDtype()

◆ getDtypeSize()

◆ getFlags()

◆ getId()

◆ getIdV()

◆ getIO()

◆ getIOMap()

◆ getObjConfig()

◆ getObject()

◆ getPriv()

◆ getState()

◆ getType()

◆ hasThread()

◆ init()

◆ onSetObjConfig()

◆ setObjConfig()

◆ setObjectMapItem()

◆ start()

◆ stop()

◆ trigger()

◆ validateDesc()