kbdmgr.c

state machine working with rtos

/*****************************************************************************
* Product: QDPP example
* Version: Compatible with QF/C 3.1.yy
* Updated: Dec 18, 2005
*
* Copyright (C) 2002-2005 Quantum Leaps, LLC. All rights reserved.
*
* This example is part of the Quantum Leaps QP/C software, and may be
* distributed and modified under the terms of the GNU General Public License
* version 2 (GPL) as published by the Free Software Foundation and appearing
* in the file GPL.TXT included in the packaging of this file. Please note
* that GPL Section 2[b] requires that all works based on this software must
* also be made publicly available under the terms of the GPL ("Copyleft").
*
* Alternatively, this software may be distributed and modified in conjunction
* with a valid QP/C Quantum Leaps commercial license. Quantum Leaps
* commercial licenses are designed for users who want to retain proprietary
* status of their code. The users who license this software under one of
* Quantum Leaps commercial licenses do not use this software under the GPL
* and therefore are not subject to any of its terms.
*
* Contact information:
* Quantum Leaps Web site:  http://www.quantum-leaps.com
* Quantum Leaps licensing: http://www.quantum-leaps.com/licensing
* Quantum Leaps products:  http://www.quantum-leaps.com/products
* e-mail:                  [e-mail]
*****************************************************************************/
#include "qf_port.h"
#include "qdpp.h"
#include "qassert.h"

Q_DEFINE_THIS_FILE

typedef struct KbdMgrTag KbdMgr;
struct KbdMgrTag {                                      /* keyboard manager */
    QActive super_;                                /* inherits from QActive */
};

void KbdMgr_ctor(KbdMgr *me);
static void KbdMgr_initial(KbdMgr *me, QEvent const *e);
static QSTATE KbdMgr_active(KbdMgr *me, QEvent const *e);

/*..........................................................................*/
void kbdMgrStart(uint8_t prio,
                 QEvent const *qSto[], uint32_t qLen,
                 void *stkSto, uint32_t stkSize)
{
    static KbdMgr k;
    KbdMgr_ctor(&k);                                  /* explicit Ctor call */
    QActive_start((QActive *)&k, prio,
                  qSto, qLen, stkSto, stkSize,
                  (QEvent *)0);                  /* no initialization event */
}
/*..........................................................................*/
void KbdMgr_ctor(KbdMgr *me) {
    QActive_ctor_(&me->super_, (QState)&KbdMgr_initial);
}
/*..........................................................................*/
void KbdMgr_initial(KbdMgr *me, QEvent const *e) {
    (void)e;                               /* suppress the compiler warning */
    QActive_subscribe_((QActive *)me, KBD_SIG);
    Q_INIT(&KbdMgr_active);
}
/*..........................................................................*/
QSTATE KbdMgr_active(KbdMgr *me, QEvent const *e) {
    (void)me;                             /* eliminate the compiler warning */
    switch (e->sig) {
        case KBD_SIG: {
            busyDelay();
            displayKey(((KbdEvt const *)e)->key);
            if (((KbdEvt const *)e)->key == (uint8_t)0x81) {
                QF_publish(Q_NEW(QEvent, TERMINATE_SIG));
            }
            return 0;
        }
    }
    return (QSTATE)&QHsm_top;
}