70 lines
1.3 KiB
C
70 lines
1.3 KiB
C
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#ifndef BUTTONSM_DEF
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#define BUTTONSM_DEF
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#include <stdint.h>
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#include <stdbool.h>
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#include "../../xf/xf.h"
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#include "button.h"
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/*
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* these are the events of the
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* button state machine
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* be sure to make the first event
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* in the enumeration different from 0
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*/
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typedef enum BSMEvent
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{
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evBSMInit = 10,
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evBSMDefault,
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evBSMPollTM
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} BSMEvent;
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/*
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* these are the states of the
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* button state machine
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*/
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typedef enum BSMSTate_
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{
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ST_BSMINIT,
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ST_BSMWAIT,
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ST_BSMPOLL,
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ST_BSMPRESSED,
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ST_BSMRELEASED
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} BSMState;
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/*
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* the associated button will be polled
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* each 50 ms. do not make this time
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* shorter than TICKINTERVAL
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*/
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#define POLLTM 50
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/*
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* this is the prototype type of the callback function
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* that will be called when the associated button
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* changes from released to pressed or inverse.
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*/
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typedef void (*buttonObserverCBT)(void*, uint8_t, bool);
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/*
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* this is the declaration of the ButtonSM class
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*/
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struct ButtonSM_
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{
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BSMState state;
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Button* button;
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BSMState actualState;
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buttonObserverCBT observerCB;
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void* observer;
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};
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typedef struct ButtonSM_ ButtonSM;
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void ButtonSM_init(ButtonSM* me, Button* button);
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void ButtonSM_startBehaviour(ButtonSM* me);
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bool ButtonSM_processEvent(Event* ev);
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void ButtonSM_setObserver(ButtonSM* me, void* observer, buttonObserverCBT observerCB);
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#endif
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