/*****************************************************************************
* Product: Simple Blinky example
* Last Updated for Version: 5.0.0
* Date of the Last Update: Sep 07, 2013
*
* Q u a n t u m L e a P s
* ---------------------------
* innovating embedded systems
*
* Copyright (C) 2002-2013 Quantum Leaps, LLC. All rights reserved.
*
* This program is open source software: you can redistribute it and/or
* modify it under the terms of the GNU General Public License as published
* by the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* Alternatively, this program may be distributed and modified under the
* terms of Quantum Leaps commercial licenses, which expressly supersede
* the GNU General Public License and are specifically designed for
* licensees interested in retaining the proprietary status of their code.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see .
*
* Contact information:
* Quantum Leaps Web sites: http://www.quantum-leaps.com
* http://www.state-machine.com
* e-mail: info@quantum-leaps.com
*****************************************************************************/
#include "qp_port.h"
#include "bsp.h"
#include
Q_DEFINE_THIS_FILE
/*..........................................................................*/
enum Signals {
TIMEOUT_SIG = Q_USER_SIG, /* the periodic timeout signal */
};
/*..........................................................................*/
typedef struct BlinkyTag { /* the Blinky active object */
QActive super; /* derive from QActive */
QTimeEvt timeEvt; /* private time event generator */
} Blinky;
void Blinky_ctor(Blinky * const me);
/* hierarchical state machine ... */
static QState Blinky_initial(Blinky * const me, QEvt const * const e);
static QState Blinky_off (Blinky * const me, QEvt const * const e);
static QState Blinky_on (Blinky * const me, QEvt const * const e);
/*..........................................................................*/
void Blinky_ctor(Blinky * const me) {
QActive_ctor(&me->super, Q_STATE_CAST(&Blinky_initial));
QTimeEvt_ctorX(&me->timeEvt, &me->super, TIMEOUT_SIG, 0U);
}
/* HSM definition ----------------------------------------------------------*/
QState Blinky_initial(Blinky * const me, QEvt const * const e) {
(void)e; /* avoid compiler warning about unused parameter */
/* arm the time event to expire in half a second and every half second */
QTimeEvt_armX(&me->timeEvt, BSP_TICKS_PER_SEC/2U, BSP_TICKS_PER_SEC/2U);
return Q_TRAN(&Blinky_off);
}
/*..........................................................................*/
QState Blinky_off(Blinky * const me, QEvt const * const e) {
QState status;
switch (e->sig) {
case Q_ENTRY_SIG: {
BSP_ledOff();
status = Q_HANDLED();
break;
}
case TIMEOUT_SIG: {
status = Q_TRAN(&Blinky_on);
break;
}
default: {
status = Q_SUPER(&QHsm_top);
break;
}
}
return status;
}
/*..........................................................................*/
QState Blinky_on(Blinky * const me, QEvt const * const e) {
QState status;
switch (e->sig) {
case Q_ENTRY_SIG: {
BSP_ledOn();
status = Q_HANDLED();
break;
}
case TIMEOUT_SIG: {
status = Q_TRAN(&Blinky_off);
break;
}
default: {
status = Q_SUPER(&QHsm_top);
break;
}
}
return status;
}
/* test harness ============================================================*/
/* Local-scope objects -----------------------------------------------------*/
static Blinky l_blinky; /* the Blinky active object */
static QEvt const *l_blinkyQSto[10]; /* Event queue storage for Blinky */
/*..........................................................................*/
int main(int argc, char *argv[]) {
(void)argc; /* avoid the compiler warning about unused parameter */
(void)argv; /* avoid the compiler warning about unused parameter */
BSP_init(); /* initialize the Board Support Package */
QF_init(); /* initialize the framework and the underlying RT kernel */
/* publish-subscribe not used, no call to QF_psInit() */
/* dynamic event allocation not used, no call to QF_poolInit() */
/* instantiate and start the active objects... */
Blinky_ctor(&l_blinky);
QACTIVE_START(&l_blinky.super,
1U,
l_blinkyQSto, Q_DIM(l_blinkyQSto),
(void *)0, 1024, (QEvt *)0);
return QF_run(); /* run the QF application */
}