Consumer class for Node Card's NeoPixel pins. More...

#include <NeoPixelConfiguredConsumer.h>

Inheritance diagram for NeoPixelConfiguredConsumer:

Collaboration diagram for NeoPixelConfiguredConsumer:

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Public Types
typedef NeoPixelConfig	LineConfig_type

Public Member Functions
	NeoPixelConfiguredConsumer (openlcb::Node pNode, const LineConfig_type &configOffset, uint8_t numDevicesPerCard, EventDeviceTypes eventDeviceType, const char cardDescription)

bool	ensureUniqueI2cOffset (uint8_t cardIndex, uint8_t bus, uint8_t offset)

Public Attributes
union I2cCardHelper::EventUserArgsUnion	userArgs

Protected Member Functions
void	drive_pin (uint8_t, uint8_t pin, bool set) override

void	_do_unregister ()
	Unregisters this event handler from the global registry.

void	handle_identify_consumer (const openlcb::EventRegistryEntry &registry_entry, openlcb::EventReport event, BarrierNotifiable done) OVERRIDE
	Process request to identify produced events.

void	handle_identify_producer (const openlcb::EventRegistryEntry &registry_entry, openlcb::EventReport event, BarrierNotifiable done) OVERRIDE
	Process request to identify produced events.

virtual void	SendEventIdentified (const openlcb::EventRegistryEntry &registry_entry, openlcb::EventReport event, BarrierNotifiable done)
	Sends Producer- or Consumer-Identified for `registry_entry`. More...

void	applyI2cInfo (int fd, uint8_t cardIndex, i2cInfoConfig_type cfgI2cInfoRef)
	sets up the MCP card's I2C connection using the user provided (CDI) configuration information (bus and address offset) More...

void	resetCardInfo (int fd, cardInfoConfig_type cfgI2cInfoRef)
	resets the card configuration information (description field). More...

void	resetI2cInfo (int fd, i2cInfoConfig_type cfgI2cInfoRef)
	resets the card's I2C configuration information (bus and address fields). More...

virtual void	drive_pin_ext (uint8_t card, uint8_t pin, bool set, uint8_t intArg)

EventUserArgsUnion	unpack_user_args (const openlcb::EventRegistryEntry &re) const
	Small helper to unpack our 4-byte user_arg payload from the registry entry.

void	handle_event_report (const openlcb::EventRegistryEntry &registry_entry, openlcb::EventReport event, BarrierNotifiable done) OVERRIDE

Private Member Functions
void	_setPowerOnState (uint8_t cardNum, uint8_t lineNum, DefaultDeviceSettings::DeviceStates state)
	Sets the power-on state for a specific pin on a specific card. More...

void	_initI2cCards (bool isProducer)
	Initializes the array of I2C card objects using the configured card type. More...

Detailed Description

Consumer class for Node Card's NeoPixel pins.

Definition at line 88 of file NeoPixelConfiguredConsumer.h.

Member Typedef Documentation

◆ LineConfig_type

typedef NeoPixelConfig NeoPixelConfiguredConsumer::LineConfig_type

Type for the NeoPixel line CDI configuration entry

Definition at line 127 of file NeoPixelConfiguredConsumer.h.

Constructor & Destructor Documentation

◆ NeoPixelConfiguredConsumer()

NeoPixelConfiguredConsumer::NeoPixelConfiguredConsumer	(	openlcb::Node *	pNode,
		const LineConfig_type &	configOffset,
		uint8_t	numDevicesPerCard,
		EventDeviceTypes	eventDeviceType,
		const char *	cardDescription
	)

inline

Parameters

pNode	is the OpenLCB node object from the stack.
configOffset	is the repeated group object from the configuration space that represents the locations of the events.
numDevicesPerCard	is the number of devices per card.
eventDeviceType	is the logical type of event device (used for logging, diagnostics, and naming).
cardDescription	is the human-friendly card description for log messages and debug output ( e.g. "NeoPixel Card").

Definition at line 135 of file NeoPixelConfiguredConsumer.h.

Member Function Documentation

◆ _initI2cCards()

void I2cCardHelper::_initI2cCards ( bool isProducer )

inlineprivateinherited

Initializes the array of I2C card objects using the configured card type.

Allocates and initializes each I2C card in the array to the type specified by the cardType_ member. If isProducer is true, registers each card's polling callback.

Parameters

isProducer True if the card is used as a producer and requires polling.

Definition at line 460 of file I2cCardHelper.h.

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◆ _setPowerOnState()

void NeoPixelConfiguredConsumer::_setPowerOnState	(	uint8_t	cardNum,
		uint8_t	lineNum,
		DefaultDeviceSettings::DeviceStates	state
	)

inlineprivate

Sets the power-on state for a specific pin on a specific card.

This function configures the initial state of a pin (on, off, or previous state) when the system powers on. It supports three initial states: ON (active), OFF (inactive), and PREVIOUS (the state before the last power down). For the PREVIOUS state, it reads the saved state from a persistent storage I2cCardHelper::pinStates[cardNum]. The function updates the I2cCardHelper::pinStates[cardNum] element to reflect the current state for future reference if the state is ON or OFF.

Parameters

cardNum	The card number on which the pin resides. This is used to index into the `i2cCards` array of I2C card helpers.
lineNum	The pin number to set the state for. This should be within the valid range for the card.
state	The desired initial state of the pin specified by the `DefaultDeviceSettings::DeviceStates` enum.

Definition at line 338 of file NeoPixelConfiguredConsumer.h.

◆ applyI2cInfo()

void I2cCardHelper::applyI2cInfo	(	int	fd,
		uint8_t	cardIndex,
		i2cInfoConfig_type	cfgI2cInfoRef
	)

inlineprotectedinherited

sets up the MCP card's I2C connection using the user provided (CDI) configuration information (bus and address offset)

Note

producer/consumers apply_configuration() callback invoke this method to initialize the I2C / MCP connection information for the card

all I2C connected cards have CDI section for user provided bus and address information (which must match the settings of the I2C enabeled card)

HOOK: Typical call site is within your apply_configuration() loop:

read bus & offset from CDI
initialize the corresponding i2cCards[cardIndex]

Parameters

fd	file handle to access the CDI configuration information (provided by openmrn)
cardIndex	specifies which card the configuration is for. Used to update the i2cCards[] array and initialize the connection
cfgI2cInfoRef	offset into the intenal configuration space for the CDI configuration for the MCP card

Definition at line 295 of file I2cCardHelper.h.

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◆ drive_pin()

void NeoPixelConfiguredConsumer::drive_pin	(	uint8_t	card,
		uint8_t	pin,
		bool	set
	)

inlineoverrideprotectedvirtual

Hook for consumers: drive one output pin (simple case). Default does nothing; simple consumers override this.

Parameters

card	card index (as stored in user_arg)
pin	pin index (as stored in user_arg)
set	desired logical state from the event semantics (SET/ON = true, CLR/OFF = false)

Reimplemented from I2cCardHelper.

Definition at line 299 of file NeoPixelConfiguredConsumer.h.

◆ drive_pin_ext()

virtual void I2cCardHelper::drive_pin_ext	(	uint8_t	card,
		uint8_t	pin,
		bool	set,
		uint8_t	intArg
	)

inlineprotectedvirtualinherited

Extended hook for consumers that also need the CDI intArg (e.g., audio message index). Default forwards to drive_pin(...) so existing consumers remain unchanged.

Reimplemented in AudioConfiguredConsumer.

Definition at line 402 of file I2cCardHelper.h.

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◆ ensureUniqueI2cOffset()

bool I2cCardHelper::ensureUniqueI2cOffset	(	uint8_t	cardIndex,
		uint8_t	bus,
		uint8_t	offset
	)

inlineinherited

Check for duplicate offsets on the same I2C bus. Automatically resets the tracker on the first call per config pass.

Remarks: Call this once per card during your apply_configuration loop, with the CDI values.

Parameters

cardIndex	Index of the card in the config loop.
bus	I2C bus number (0 or 1).
offset	I2C offset (0–7).

Returns: true if this (bus, offset) was already claimed.

Definition at line 183 of file I2cCardHelper.h.

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◆ handle_event_report()

void I2cCardHelper::handle_event_report	(	const openlcb::EventRegistryEntry &	registry_entry,
		openlcb::EventReport *	event,
		BarrierNotifiable *	done
	)

inlineprotectedinherited

Default consumer handler: maps an incoming Event Report to (card,pin,set,intArg) and calls drive_pin_ext(...). Producers are ignored.

Definition at line 418 of file I2cCardHelper.h.

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◆ resetCardInfo()

void I2cCardHelper::resetCardInfo	(	int	fd,
		cardInfoConfig_type	cfgI2cInfoRef
	)

inlineprotectedinherited

resets the card configuration information (description field).

Note: invoke from the consumer/producer factory_reset() to reset the card configuration

Parameters

fd	file handle to access the CDI configuration information (provided by openmrn)
cfgI2cInfoRef	offset into the intenal configuration space for the CDI configuration block for the card's info (description, etc)

Definition at line 309 of file I2cCardHelper.h.

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◆ resetI2cInfo()

void I2cCardHelper::resetI2cInfo	(	int	fd,
		i2cInfoConfig_type	cfgI2cInfoRef
	)

inlineprotectedinherited

resets the card's I2C configuration information (bus and address fields).

Note: invoke from the consumer/producer factory_reset() to reset the card configuration

Parameters

fd	file handle to access the CDI configuration information (provided by openmrn)
cfgI2cInfoRef	offset into the intenal configuration space for the CDI configuration for card's I2C info (bus/offset)

Definition at line 321 of file I2cCardHelper.h.

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◆ SendEventIdentified()

virtual void I2cCardHelper::SendEventIdentified	(	const openlcb::EventRegistryEntry &	registry_entry,
		openlcb::EventReport *	event,
		BarrierNotifiable *	done
	)

inlineprotectedvirtualinherited

Sends Producer- or Consumer-Identified for registry_entry.

Identification type is inferred from the registry entry’s packed user args (see

See also: isProducer). Override to customize the MTI or payload.

Reimplemented in TurnoutConfiguredPC.

Definition at line 273 of file I2cCardHelper.h.

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Member Data Documentation

◆ userArgs

union I2cCardHelper::EventUserArgsUnion I2cCardHelper::userArgs

inherited

event arguments

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

Node_Card/NeoPixelConfiguredConsumer.h

Public Types

Public Member Functions

Public Attributes

Protected Member Functions

Private Member Functions

Detailed Description

Member Typedef Documentation

◆ LineConfig_type

Constructor & Destructor Documentation

◆ NeoPixelConfiguredConsumer()

Member Function Documentation

◆ _initI2cCards()

◆ _setPowerOnState()

◆ applyI2cInfo()

◆ drive_pin()

◆ drive_pin_ext()

◆ ensureUniqueI2cOffset()

◆ handle_event_report()

◆ resetCardInfo()

◆ resetI2cInfo()

◆ SendEventIdentified()

Member Data Documentation

◆ userArgs