Quantum Leaps b49b8c24bc 4.5.04
2013-02-12 10:04:39 -05:00

710 lines
21 KiB
C

/*****************************************************************************
* Product: Calculator Example with percentage calculations
* Last Updated for Version: 4.5.04
* Date of the Last Update: Jan 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 <http://www.gnu.org/licenses/>.
*
* 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" /* the port of the QP framework */
#include "bsp.h" /* board support package */
#include "calc.h"
typedef struct CalcTag {
QHsm super; /* derives from QHsm */
double operand1; /* the value of operand 1 */
uint8_t operator; /* operator key entered */
} Calc;
static QState Calc_initial (Calc * const me, QEvt const * const e);
static QState Calc_on (Calc * const me, QEvt const * const e);
static QState Calc_error (Calc * const me, QEvt const * const e);
static QState Calc_ready (Calc * const me, QEvt const * const e);
static QState Calc_result (Calc * const me, QEvt const * const e);
static QState Calc_begin (Calc * const me, QEvt const * const e);
static QState Calc_negated1 (Calc * const me, QEvt const * const e);
static QState Calc_operand1 (Calc * const me, QEvt const * const e);
static QState Calc_zero1 (Calc * const me, QEvt const * const e);
static QState Calc_int1 (Calc * const me, QEvt const * const e);
static QState Calc_frac1 (Calc * const me, QEvt const * const e);
static QState Calc_opEntered(Calc * const me, QEvt const * const e);
static QState Calc_negated2 (Calc * const me, QEvt const * const e);
static QState Calc_operand2 (Calc * const me, QEvt const * const e);
static QState Calc_zero2 (Calc * const me, QEvt const * const e);
static QState Calc_int2 (Calc * const me, QEvt const * const e);
static QState Calc_frac2 (Calc * const me, QEvt const * const e);
static QState Calc_final (Calc * const me, QEvt const * const e);
/* Local objects -----------------------------------------------------------*/
static Calc l_calc; /* the calculator instance */
/* Global objects ----------------------------------------------------------*/
QHsm * const the_calc = (QHsm *)&l_calc;
/*..........................................................................*/
void Calc_ctor(void) {
Calc *me = &l_calc;
QHsm_ctor(&me->super, Q_STATE_CAST(&Calc_initial));
}
/* HSM definition ----------------------------------------------------------*/
QState Calc_initial(Calc * const me, QEvt const * const e) {
(void)e; /* avoid the "unreferenced parameter" warning */
BSP_clear();
return Q_TRAN(&Calc_on);
}
/*..........................................................................*/
QState Calc_on(Calc * const me, QEvt const * const e) {
QState status;
switch (e->sig) {
case Q_ENTRY_SIG: {
BSP_message("on-ENTRY;");
status = Q_HANDLED();
break;
}
case Q_EXIT_SIG: {
BSP_message("on-EXIT;");
status = Q_HANDLED();
break;
}
case Q_INIT_SIG: {
BSP_message("on-INIT;");
status = Q_TRAN(&Calc_ready);
break;
}
case C_SIG: {
BSP_clear();
status = Q_TRAN(&Calc_on); /* transition-to-self */
break;
}
case OFF_SIG: {
status = Q_TRAN(&Calc_final);
break;
}
default: {
status = Q_SUPER(&QHsm_top);
break;
}
}
return status;
}
/*..........................................................................*/
QState Calc_error(Calc * const me, QEvt const * const e) {
QState status;
switch (e->sig) {
case Q_ENTRY_SIG: {
BSP_message("error-ENTRY;");
status = Q_HANDLED();
break;
}
case Q_EXIT_SIG: {
BSP_message("error-EXIT;");
status = Q_HANDLED();
break;
}
default: {
status = Q_SUPER(&Calc_on);
break;
}
}
return status;
}
/*..........................................................................*/
QState Calc_ready(Calc * const me, QEvt const * const e) {
QState status;
switch (e->sig) {
case Q_ENTRY_SIG: {
BSP_message("ready-ENTRY;");
status = Q_HANDLED();
break;
}
case Q_EXIT_SIG: {
BSP_message("ready-EXIT;");
status = Q_HANDLED();
break;
}
case Q_INIT_SIG: {
BSP_message("ready-INIT;");
status = Q_TRAN(&Calc_begin);
break;
}
case DIGIT_0_SIG: {
BSP_clear();
status = Q_TRAN(&Calc_zero1);
break;
}
case DIGIT_1_9_SIG: {
BSP_clear();
BSP_insert(((CalcEvt const *)e)->key_code);
status = Q_TRAN(&Calc_int1);
break;
}
case POINT_SIG: {
BSP_clear();
BSP_insert((int)'0');
BSP_insert((int)'.');
status = Q_TRAN(&Calc_frac1);
break;
}
case OPER_SIG: {
me->operand1 = BSP_get_value();
me->operator = ((CalcEvt const *)e)->key_code;
status = Q_TRAN(&Calc_opEntered);
break;
}
default: {
status = Q_SUPER(&Calc_on);
break;
}
}
return status;
}
/*..........................................................................*/
QState Calc_result(Calc * const me, QEvt const * const e) {
QState status;
switch (e->sig) {
case Q_ENTRY_SIG: {
BSP_message("result-ENTRY;");
status = Q_HANDLED();
break;
}
case Q_EXIT_SIG: {
BSP_message("result-EXIT;");
status = Q_HANDLED();
break;
}
default: {
status = Q_SUPER(&Calc_ready);
break;
}
}
return status;
}
/*..........................................................................*/
QState Calc_begin(Calc * const me, QEvt const * const e) {
QState status;
switch (e->sig) {
case Q_ENTRY_SIG: {
BSP_message("begin-ENTRY;");
status = Q_HANDLED();
break;
}
case Q_EXIT_SIG: {
BSP_message("begin-EXIT;");
status = Q_HANDLED();
break;
}
case OPER_SIG: {
if (((CalcEvt const *)e)->key_code == KEY_MINUS) {
status = Q_TRAN(&Calc_negated1);
}
else {
status = Q_UNHANDLED();
}
break;
}
default: {
status = Q_SUPER(&Calc_ready);
break;
}
}
return status;
}
/*..........................................................................*/
QState Calc_negated1(Calc * const me, QEvt const * const e) {
QState status;
switch (e->sig) {
case Q_ENTRY_SIG: {
BSP_message("negated1-ENTRY;");
BSP_negate();
status = Q_HANDLED();
break;
}
case Q_EXIT_SIG: {
BSP_message("negated1-EXIT;");
status = Q_HANDLED();
break;
}
case OPER_SIG: {
if (((CalcEvt const *)e)->key_code == KEY_MINUS) {
; /* explicitly ignore */
status = Q_HANDLED(); /* event handled */
}
else {
status = Q_HANDLED();
}
break;
}
case CE_SIG: {
BSP_clear();
status = Q_TRAN(&Calc_begin);
break;
}
case DIGIT_0_SIG: {
BSP_insert(((CalcEvt const *)e)->key_code);
status = Q_TRAN(&Calc_zero1);
break;
}
case DIGIT_1_9_SIG: {
BSP_insert(((CalcEvt const *)e)->key_code);
status = Q_TRAN(&Calc_int1);
break;
}
case POINT_SIG: {
BSP_insert(((CalcEvt const *)e)->key_code);
status = Q_TRAN(&Calc_frac1);
break;
}
default: {
status = Q_SUPER(&Calc_on);
break;
}
}
return status;
}
/*..........................................................................*/
QState Calc_negated2(Calc * const me, QEvt const * const e) {
QState status;
switch (e->sig) {
case Q_ENTRY_SIG: {
BSP_message("negated2-ENTRY;");
BSP_negate();
status = Q_HANDLED();
break;
}
case Q_EXIT_SIG: {
BSP_message("negated2-EXIT;");
status = Q_HANDLED();
break;
}
case OPER_SIG: {
if (((CalcEvt const *)e)->key_code == KEY_MINUS) {
; /* explicitly ignore */
status = Q_HANDLED(); /* event handled */
}
else {
status = Q_HANDLED();
}
break;
}
case CE_SIG: {
BSP_clear();
status = Q_TRAN(&Calc_opEntered);
break;
}
case DIGIT_0_SIG: {
status = Q_TRAN(&Calc_zero2);
break;
}
case DIGIT_1_9_SIG: {
BSP_insert(((CalcEvt const *)e)->key_code);
status = Q_TRAN(&Calc_int2);
break;
}
case POINT_SIG: {
BSP_insert(((CalcEvt const *)e)->key_code);
status = Q_TRAN(&Calc_frac2);
break;
}
default: {
status = Q_SUPER(&Calc_on);
break;
}
}
return status;
}
/*..........................................................................*/
QState Calc_operand1(Calc * const me, QEvt const * const e) {
QState status;
switch (e->sig) {
case Q_ENTRY_SIG: {
BSP_message("operand1-ENTRY;");
status = Q_HANDLED();
break;
}
case Q_EXIT_SIG: {
BSP_message("operand1-EXIT;");
status = Q_HANDLED();
break;
}
case CE_SIG: {
BSP_clear();
status = Q_TRAN(&Calc_begin);
break;
}
case OPER_SIG: {
me->operand1 = BSP_get_value();
me->operator = ((CalcEvt const *)e)->key_code;
status = Q_TRAN(&Calc_opEntered);
break;
}
case EQUALS_SIG: {
status = Q_TRAN(&Calc_result);
break;
}
default: {
status = Q_SUPER(&Calc_on);
break;
}
}
return status;
}
/*..........................................................................*/
QState Calc_zero1(Calc * const me, QEvt const * const e) {
QState status;
switch (e->sig) {
case Q_ENTRY_SIG: {
BSP_message("zero1-ENTRY;");
status = Q_HANDLED();
break;
}
case Q_EXIT_SIG: {
BSP_message("zero1-EXIT;");
status = Q_HANDLED();
break;
}
case DIGIT_0_SIG: {
; /* explicitly ignore */
status = Q_HANDLED();
break;
}
case DIGIT_1_9_SIG: {
BSP_insert(((CalcEvt const *)e)->key_code);
status = Q_TRAN(&Calc_int1);
break;
}
case POINT_SIG: {
BSP_insert(((CalcEvt const *)e)->key_code);
status = Q_TRAN(&Calc_frac1);
break;
}
default: {
status = Q_SUPER(&Calc_operand1);
break;
}
}
return status;
}
/*..........................................................................*/
QState Calc_int1(Calc * const me, QEvt const * const e) {
QState status;
switch (e->sig) {
case Q_ENTRY_SIG: {
BSP_message("int1-ENTRY;");
status = Q_HANDLED();
break;
}
case Q_EXIT_SIG: {
BSP_message("int1-EXIT;");
status = Q_HANDLED();
break;
}
case DIGIT_0_SIG: /* intentionally fall through */
case DIGIT_1_9_SIG: {
BSP_insert(((CalcEvt const *)e)->key_code);
status = Q_HANDLED();
break;
}
case POINT_SIG: {
BSP_insert(((CalcEvt const *)e)->key_code);
status = Q_TRAN(&Calc_frac1);
break;
}
default: {
status = Q_SUPER(&Calc_operand1);
break;
}
}
return status;
}
/*..........................................................................*/
QState Calc_frac1(Calc * const me, QEvt const * const e) {
QState status;
switch (e->sig) {
case Q_ENTRY_SIG: {
BSP_message("frac1-ENTRY;");
status = Q_HANDLED();
break;
}
case Q_EXIT_SIG: {
BSP_message("frac1-EXIT;");
status = Q_HANDLED();
break;
}
case DIGIT_0_SIG: /* intentionally fall through */
case DIGIT_1_9_SIG: {
BSP_insert(((CalcEvt const *)e)->key_code);
status = Q_HANDLED();
break;
}
case POINT_SIG: {
; /* explicitly ignore */
status = Q_HANDLED();
break;
}
default: {
status = Q_SUPER(&Calc_operand1);
break;
}
}
return status;
}
/*..........................................................................*/
QState Calc_opEntered(Calc * const me, QEvt const * const e) {
QState status;
switch (e->sig) {
case Q_ENTRY_SIG: {
BSP_message("opEntered-ENTRY;");
status = Q_HANDLED();
break;
}
case Q_EXIT_SIG: {
BSP_message("opEntered-EXIT;");
status = Q_HANDLED();
break;
}
case OPER_SIG: {
if (((CalcEvt const *)e)->key_code == KEY_MINUS) {
BSP_clear();
status = Q_TRAN(&Calc_negated2);
}
break;
}
case DIGIT_0_SIG: {
BSP_clear();
status = Q_TRAN(&Calc_zero2);
break;
}
case DIGIT_1_9_SIG: {
BSP_clear();
BSP_insert(((CalcEvt const *)e)->key_code);
status = Q_TRAN(&Calc_int2);
break;
}
case POINT_SIG: {
BSP_clear();
BSP_insert((int)'0');
BSP_insert((int)'.');
status = Q_TRAN(&Calc_frac2);
break;
}
default: {
status = Q_SUPER(&Calc_on);
break;
}
}
return status;
}
/*..........................................................................*/
QState Calc_operand2(Calc * const me, QEvt const * const e) {
QState status;
switch (e->sig) {
case Q_ENTRY_SIG: {
BSP_message("operand2-ENTRY;");
status = Q_HANDLED();
break;
}
case Q_EXIT_SIG: {
BSP_message("operand2-EXIT;");
status = Q_HANDLED();
break;
}
case CE_SIG: {
BSP_clear();
status = Q_TRAN(&Calc_opEntered);
break;
}
case OPER_SIG: {
if (BSP_eval(me->operand1, me->operator, BSP_get_value())) {
me->operand1 = BSP_get_value();
me->operator = ((CalcEvt const *)e)->key_code;
status = Q_TRAN(&Calc_opEntered);
}
else {
status = Q_TRAN(&Calc_error);
}
break;
}
case EQUALS_SIG: {
if (BSP_eval(me->operand1, me->operator, BSP_get_value())) {
status = Q_TRAN(&Calc_result);
}
else {
status = Q_TRAN(&Calc_error);
}
break;
}
case PERCENT_SIG: {
double operand2 = 0.0;
switch (me->operator) {
case KEY_PLUS:
case KEY_MINUS: {
operand2 = (me->operand1 * BSP_get_value())/100.0;
break;
}
case KEY_MULT:
case KEY_DIVIDE: {
operand2 = BSP_get_value()/100.0;
break;
}
}
if (BSP_eval(me->operand1, me->operator, operand2)) {
status = Q_TRAN(&Calc_result);
}
else {
status = Q_TRAN(&Calc_error);
}
break;
}
default: {
status = Q_SUPER(&Calc_on);
break;
}
}
return status;
}
/*..........................................................................*/
QState Calc_zero2(Calc * const me, QEvt const * const e) {
QState status;
switch (e->sig) {
case Q_ENTRY_SIG: {
BSP_message("zero2-ENTRY;");
status = Q_HANDLED();
break;
}
case Q_EXIT_SIG: {
BSP_message("zero2-EXIT;");
status = Q_HANDLED();
break;
}
case DIGIT_0_SIG: {
; /* explicitly ignore */
status = Q_HANDLED();
break;
}
case DIGIT_1_9_SIG: {
BSP_insert(((CalcEvt const *)e)->key_code);
status = Q_TRAN(&Calc_int2);
break;
}
case POINT_SIG: {
BSP_insert(((CalcEvt const *)e)->key_code);
status = Q_TRAN(&Calc_frac2);
}
default: {
status = Q_SUPER(&Calc_operand2);
break;
}
}
return status;
}
/*..........................................................................*/
QState Calc_int2(Calc * const me, QEvt const * const e) {
QState status;
switch (e->sig) {
case Q_ENTRY_SIG: {
BSP_message("int2-ENTRY;");
status = Q_HANDLED();
break;
}
case Q_EXIT_SIG: {
BSP_message("int2-EXIT;");
status = Q_HANDLED();
break;
}
case DIGIT_0_SIG: /* intentionally fall through */
case DIGIT_1_9_SIG: {
BSP_insert(((CalcEvt const *)e)->key_code);
status = Q_HANDLED();
break;
}
case POINT_SIG: {
BSP_insert(((CalcEvt const *)e)->key_code);
status = Q_TRAN(&Calc_frac2);
break;
}
default: {
status = Q_SUPER(&Calc_operand2);
break;
}
}
return status;
}
/*..........................................................................*/
QState Calc_frac2(Calc * const me, QEvt const * const e) {
QState status;
switch (e->sig) {
case Q_ENTRY_SIG: {
BSP_message("frac2-ENTRY;");
status = Q_HANDLED();
break;
}
case Q_EXIT_SIG: {
BSP_message("frac2-EXIT;");
status = Q_HANDLED();
break;
}
case DIGIT_0_SIG: /* intentionally fall through */
case DIGIT_1_9_SIG: {
BSP_insert(((CalcEvt const *)e)->key_code);
status = Q_HANDLED();
break;
}
case POINT_SIG: {
; /* explicitly ignore */
status = Q_HANDLED();
break;
}
default: {
status = Q_SUPER(&Calc_operand2);
break;
}
}
return status;
}
/*..........................................................................*/
QState Calc_final(Calc * const me, QEvt const * const e) {
QState status;
switch (e->sig) {
case Q_ENTRY_SIG: {
BSP_message("final-ENTRY;");
BSP_exit();
status = Q_HANDLED();
break;
}
default: {
status = Q_SUPER(&QHsm_top);
break;
}
}
return status;
}