/* ISRs --------------------------------------------------------------------*/
__ramfunc
static void ISR_tick(void) {
/* state of the button debouncing, see below */
static struct ButtonsDebouncing {
uint32_t depressed;
uint32_t previous;
} buttons = { ~0U, ~0U };
uint32_t current;
uint32_t volatile tmp;
/* clear the interrupt source */
tmp = AT91C_BASE_PITC->PITC_PIVR;
QF_tickXISR(0U); /* process time events for rate 0 */
/* Perform the debouncing of buttons. The algorithm for debouncing
* adapted from the book "Embedded Systems Dictionary" by Jack Ganssle
* and Michael Barr, page 71.
*/
current = ~AT91C_BASE_PIOA->PIO_PDSR;/* read PIOA with state of Buttons */
tmp = buttons.depressed; /* save the debounced depressed buttons */
buttons.depressed |= (buttons.previous & current); /* set depressed */
buttons.depressed &= (buttons.previous | current); /* clear released */
buttons.previous = current; /* update the history */
tmp ^= buttons.depressed; /* changed debounced depressed */
if ((tmp & l_btn[0]) != 0U) { /* debounced BTN_P1 state changed? */
if ((buttons.depressed & l_btn[0]) != 0U) { /* is BTN_P1 depressed? */
QACTIVE_POST_ISR(&AO_Table, PAUSE_SIG, 0U);
}
else { /* the button is released */
QACTIVE_POST_ISR(&AO_Table, SERVE_SIG, 0U);
}
}
}
/*..........................................................................*/
void QF_onClockTickISR(void) {
QF_tickXISR(0U); /* perform the QF clock tick processing */
if (_kbhit()) { /* any key pressed? */
switch (_getch()) {
case '\33': /* ESC pressed? */
QACTIVE_POST_ISR((QActive *)&AO_Pelican, TERMINATE_SIG, 0U);
break;
case 'p':
printf("-----> PEDS_WAITING\n");
QACTIVE_POST_ISR((QActive *)&AO_Pelican, PEDS_WAITING_SIG, 0U);
break;
case 'f':
printf("-----> OFF\n");
QACTIVE_POST_ISR((QActive *)&AO_Pelican, OFF_SIG, 0U);
break;
case 'o':
printf("-----> ON\n");
QACTIVE_POST_ISR((QActive *)&AO_Pelican, ON_SIG, 0U);
break;
default:
break;
}
}
}
__interrupt void timer2_ISR(void) {
/* state of the button debouncing, see below */
static struct ButtonsDebouncing {
uint8_t depressed;
uint8_t previous;
} buttons = { 0xFFU, 0xFFU };
uint8_t current;
uint8_t tmp;
QF_tickXISR(0U); /* process time events for rate 0 */
/* Perform the debouncing of buttons. The algorithm for debouncing
* adapted from the book "Embedded Systems Dictionary" by Jack Ganssle
* and Michael Barr, page 71.
*/
current = PIND; /* read PORTD with the state of BTN_EXT */
tmp = buttons.depressed; /* save the debounced depressed buttons */
buttons.depressed |= (buttons.previous & current); /* set depressed */
buttons.depressed &= (buttons.previous | current); /* clear released */
buttons.previous = current; /* update the history */
tmp ^= buttons.depressed; /* changed debounced depressed */
if ((tmp & BTN_EXT) != 0U) { /* debounced BTN_EXT state changed? */
if ((buttons.depressed & BTN_EXT) != 0U) { /* is BTN_EXT depressed? */
QACTIVE_POST_ISR((QActive *)&AO_Table, PAUSE_SIG, 0U);
}
else { /* the button is released */
QACTIVE_POST_ISR((QActive *)&AO_Table, SERVE_SIG, 0U);
}
}
}
/*..........................................................................*/
void QF_onClockTickISR(void) {
QF_tickXISR(0U); /* perform the QF-nano clock tick processing */
if (_kbhit()) { /* any key pressed? */
int ch = _getch();
if (ch == 0x1B) { /* see if the ESC key pressed */
QACTIVE_POST_ISR((QActive *)&AO_Table, TERMINATE_SIG, 0U);
}
else if (ch == 'p') {
QACTIVE_POST_ISR((QActive *)&AO_Table, PAUSE_SIG, 0U);
}
}
}
/*..........................................................................*/
void QF_onClockTickISR(void) {
struct timeval timeout = { 0 }; /* timeout for select() */
fd_set con; /* FD set representing the console */
QF_tickXISR(0U); /* perform the QF clock tick processing */
FD_ZERO(&con);
FD_SET(0, &con);
/* check if a console input is available, returns immediately */
if (0 != select(1, &con, 0, 0, &timeout)) { /* any descriptor set? */
char ch;
read(0, &ch, 1);
if (ch == '\33') { /* ESC pressed? */
QACTIVE_POST_ISR((QActive *)&AO_Table, TERMINATE_SIG, 0U);
}
else if (ch == 'p') {
QACTIVE_POST_ISR((QActive *)&AO_Table, PAUSE_SIG, 0U);
}
}
}
/*..........................................................................*/
void BSP_onKeyboardInputISR(uint8_t key) {
switch (key) {
case 'o': { /* 'o': Alarm on event? */
QACTIVE_POST_ISR((QActive *)&AO_AlarmClock, ALARM_ON_SIG, 0);
break;
}
case 'f': { /* 'f': Alarm off event? */
QACTIVE_POST_ISR((QActive *)&AO_AlarmClock, ALARM_OFF_SIG, 0);
break;
}
case '1': /* '1' */
case '2': /* '2' */
case '3': /* '3' */
case '4': /* '4' */
case '5': /* '5' */
case '6': /* '6' */
case '7': /* '7' */
case '8': /* '8' */
case '9': { /* '9' */
QACTIVE_POST_ISR((QActive *)&AO_AlarmClock, ALARM_SET_SIG, key-1);
break;
}
case '0': { /* '0' */
QACTIVE_POST_ISR((QActive *)&AO_AlarmClock, ALARM_SET_SIG, 0);
break;
}
case 'a': { /* 'a': Clock 12H event? */
QACTIVE_POST_ISR((QActive *)&AO_AlarmClock, CLOCK_12H_SIG, 0);
break;
}
case 'b': { /* 'b': Clock 24H event? */
QACTIVE_POST_ISR((QActive *)&AO_AlarmClock, CLOCK_24H_SIG, 0);
break;
}
case '\33': { /* ESC pressed? */
QACTIVE_POST_ISR((QActive *)&AO_AlarmClock, TERMINATE_SIG, 0);
break;
}
}
}
