sm_led_indication

State machine mapping operating and fault states to RGB LED indication states.

Inherited Component

Status_Indication_Manager

Inherited Requirements

Relationship Diagram

SW Unit Relations

Incoming Relations

Relation	UML Type	Visibility	Source Unit	Description
SWR-006	composition	private	ao_status_indication	Status indication active object embeds LED indication state machine.

Data Types

sm_led_indication_contextstruct

Internal runtime context for sm_led_indication.

Struct Members

Name	Type	Description
sm_state	uint8_t	LED SM current state.
pattern_code	uint8_t	Active pattern code.
blink_enabled	bool	Blink state.
transition_tick	uint32_t	Last transition tick.

sm_led_indication_eventstruct

Event payload handled by sm_led_indication.

Struct Members

Name	Type	Description
signal_id	uint16_t	LED SM event id.
mode_code	uint8_t	Mode code input.
warning_active	bool	Warning input.
fault_active	bool	Fault input.

sm_led_indication_resultenum

Result code for sm_led_indication operations.

Enum Members

Name	Value	Description
OK	0	LED SM transition applied.
INVALID_TRANSITION	1	Transition rejected by guard.
PATTERN_LATCHED	2	Fault pattern latched.

Attributes

Attribute	Type	Visibility	Description
ctx	sm_led_indication_context	private	Runtime context for sm_led_indication state timing and error tracking.

Methods

dispatch

Return Type: sm_led_indication_result
Visibility: public
Description: Process one sm_led_indication event and update runtime outputs.

Parameters

Name	Type	Direction	Description
event	sm_led_indication_event	in	Process one sm_led_indication event and update runtime outputs.

init

Return Type: sm_led_indication_result
Visibility: public
Description: Initialize sm_led_indication runtime state and dependencies.

Dynamic Behaviour

State Machines

sm_led_indication_state

This state machine defines LED priority rules mapping normal warning protective and fault context into deterministic visual indications and ensures fault signaling dominates lower severity status outputs until explicit clear.

Sequence Diagrams

SEQ-003_Status_To_LED_Indication

Diagnostics status outputs are transformed by status indication logic into concrete LED driver commands.