Control system state machine. More...

#include <stdbool.h>
#include <stdint.h>
#include <zephyr/sys/iterable_sections.h>
#include <zephyr/sys/util.h>

Include dependency graph for states.h:

This graph shows which files directly or indirectly include this file:

Data Structures
struct	states_trans_cmd_info
	State transition command information. More...

struct	states_callback
	State transition callback. More...

Macros
#define	STATES_CALLBACK_DEFINE_NAMED(_name, _states, _handler, _user_data)
	Same as STATES_CALLBACK_DEFINE, but with a custom name for the callback.

#define	STATES_CALLBACK_DEFINE(states, handler, user_data)
	Define a callback for state transition.

Typedefs
typedef uint32_t	states_t
	State machine states type, where each bit represents a state defined in states_state.

typedef void(*	states_handler_t) (enum states_state state, bool is_entry, void *user_data)
	State transition handler type.

Enumerations
enum	states_state { STATE_INVALID = 0 , STATE_ERR_FREE = BIT(0) , STATE_READY = BIT(1) , STATE_RTD_BLINK = BIT(2) , STATE_RTD_STEADY = BIT(3) , STATE_RTD_READY = BIT(4) , STATE_RTD_SOUND = BIT(5) , STATE_RUNNING = BIT(6) , STATE_ERR = BIT(7) , STATE_ALL = UINT32_MAX , NUM_STATE = 8 }
	State machine states. More...

enum	states_trans_cmd { TRANS_CMD_INVALID = 0 , TRANS_CMD_ERR , TRANS_CMD_ERR_CLEAR , TRANS_CMD_PEDAL , TRANS_CMD_PEDAL_CLEAR , TRANS_CMD_RTD , TRANS_CMD_RTD_FINISH , TRANS_CMD_DISABLE , NUM_TRANS_CMD }
	State transition commands. More...

Functions
states_t	states_get ()
	Get the current states.

bool	states_valid_transition (enum states_trans_cmd cmd)
	Test if a state transition command is valid.

void	states_transition (enum states_trans_cmd cmd)
	Execute a state transition command to transition to a new state.

const char *	states_state_str (enum states_state state)
	Get the string representation of a state.

int	states_states_str (char *buf, size_t size, states_t states)
	Get the string representation of states separated by commas in the same semantic as snprintf.

const struct states_trans_cmd_info *	states_transition_info (enum states_trans_cmd cmd)
	Get the information of a state transition.

Detailed Description

Control system state machine.

Data Structures