/* clock_set_alarm: set alarm time to hours, minutes and seconds */
void clock_set_alarm(int hours, int minutes, int seconds)
{
pthread_mutex_lock(&Clock.mutex);
Clock.alarm_time.hours = hours;
Clock.alarm_time.minutes = minutes;
Clock.alarm_time.seconds = seconds;
Clock.alarm_enabled = 1;
pthread_mutex_unlock(&Clock.mutex);
display_alarm_time(hours, minutes, seconds);
}
/* clock_set_alarm: set current time to hours, minutes and seconds */
void clock_set_alarm(int hours, int minutes, int seconds)
{
si_sem_wait(&Clock.mutex);
Clock.alarm_time.hours = hours;
Clock.alarm_time.minutes = minutes;
Clock.alarm_time.seconds = seconds;
Clock.alarm_enabled = 1;
display_alarm_time(hours, minutes, seconds);
si_sem_signal(&Clock.mutex);
}
//Checks buttons for system settings
void check_buttons(void)
{
uint8_t i;
uint8_t sling_shot = 0;
uint8_t minute_change = 1;
uint8_t previous_button = 0;
//If the user hits snooze while alarm is going off, record time so that we can set off alarm again in 9 minutes
if ( (PIND & (1<<BUT_SNOOZE)) == 0 && alarm_going == TRUE)
{
alarm_going = FALSE; //Turn off alarm
snooze = TRUE; //But remember that we are in snooze mode, alarm needs to go off again in a few minutes
seconds_alarm_snooze = 0;
minutes_alarm_snooze = minutes + 9; //Snooze to 9 minutes from now
hours_alarm_snooze = hours;
ampm_alarm_snooze = ampm;
if(minutes_alarm_snooze > 59)
{
minutes_alarm_snooze -= 60;
hours_alarm_snooze++;
if(hours_alarm_snooze == 12)
{
if(ampm_alarm_snooze == AM)
ampm_alarm_snooze = PM;
else
ampm_alarm_snooze = AM;
}
if(hours_alarm_snooze == 13) hours_alarm_snooze = 1;
}
}
//Check for set time
if ( (PINB & ((1<<BUT_UP)|(1<<BUT_DOWN))) == 0)
{
delay_ms(1000);
if ( (PINB & ((1<<BUT_UP)|(1<<BUT_DOWN))) == 0)
{
//You've been holding up and down for 2 seconds
//Set time!
//siren(500); //Make some noise to show that you're setting the time
while( (PINB & ((1<<BUT_UP)|(1<<BUT_DOWN))) == 0) //Wait for you to stop pressing the buttons
display_time(1000); //Display current time for 1000ms
while(1)
{
if ( (PIND & (1<<BUT_SNOOZE)) == 0) //All done!
{
for(i = 0 ; i < 3 ; i++)
{
display_time(250); //Display current time for 100ms
clear_display();
delay_ms(250);
}
while((PIND & (1<<BUT_SNOOZE)) == 0) ; //Wait for you to release button
break;
}
if ( (PINB & (1<<BUT_UP)) == 0)
{
//Ramp minutes faster if we are holding the button
//=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
if(previous_button == BUT_UP)
sling_shot++;
else
{
sling_shot = 0;
minute_change = 1;
}
previous_button = BUT_UP;
if (sling_shot > 5)
{
minute_change++;
if(minute_change > 30) minute_change = 30;
sling_shot = 0;
}
//=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
minutes += minute_change;
if (minutes > 59)
{
minutes -= 60;
hours++;
if(hours == 13) hours = 1;
if(hours == 12)
{
if(ampm == AM)
ampm = PM;
else
ampm = AM;
}
}
delay_ms(100);
}
if ( (PINB & (1<<BUT_DOWN)) == 0)
{
//Ramp minutes faster if we are holding the button
//=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
if(previous_button == BUT_DOWN)
sling_shot++;
else
{
sling_shot = 0;
minute_change = 1;
}
previous_button = BUT_DOWN;
if (sling_shot > 5)
{
minute_change++;
if(minute_change > 30) minute_change = 30;
sling_shot = 0;
}
//=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
minutes -= minute_change;
if(minutes > 60)
{
minutes = 59;
hours--;
if(hours == 0) hours = 12;
if(hours == 11)
{
if(ampm == AM)
ampm = PM;
else
ampm = AM;
}
}
delay_ms(100);
}
//clear_display(); //Blink display
//delay_ms(100);
}
}
}
//Check for set alarm
if ( (PIND & (1<<BUT_SNOOZE)) == 0)
{
TIMSK2 = 0;
display_alarm_time(1000);
if ( (PIND & (1<<BUT_SNOOZE)) == 0)
{
//You've been holding snooze for 2 seconds
//Set alarm time!
//Disable the regular display clock interrupt
TIMSK2 = 0;
while( (PIND & (1<<BUT_SNOOZE)) == 0) //Wait for you to stop pressing the buttons
{
clear_display();
delay_ms(250);
display_alarm_time(250); //Display current time for 1000ms
}
while(1)
{
display_alarm_time(100); //Display current time for 100ms
if ( (PIND & (1<<BUT_SNOOZE)) == 0) //All done!
{
for(i = 0 ; i < 4 ; i++)
{
display_alarm_time(250); //Display current time for 100ms
clear_display();
delay_ms(250);
}
while((PIND & (1<<BUT_SNOOZE)) == 0) ; //Wait for you to release button
TIMSK2 = (1<<TOIE2); //Re-enable the timer 2 interrupt
break;
}
if ( (PINB & (1<<BUT_UP)) == 0)
{
//Ramp minutes faster if we are holding the button
//=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
if(previous_button == BUT_UP)
sling_shot++;
else
{
sling_shot = 0;
minute_change = 1;
}
previous_button = BUT_UP;
if (sling_shot > 5)
{
minute_change++;
if(minute_change > 30) minute_change = 30;
sling_shot = 0;
}
//=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
minutes_alarm += minute_change;
if (minutes_alarm > 59)
{
minutes_alarm -= 60;
hours_alarm++;
if(hours_alarm == 13) hours_alarm = 1;
if(hours_alarm == 12)
{
if(ampm_alarm == AM)
ampm_alarm = PM;
else
ampm_alarm = AM;
}
}
//delay_ms(100);
}
if ( (PINB & (1<<BUT_DOWN)) == 0)
{
//Ramp minutes faster if we are holding the button
//=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
if(previous_button == BUT_DOWN)
sling_shot++;
else
{
sling_shot = 0;
minute_change = 1;
}
previous_button = BUT_DOWN;
if (sling_shot > 5)
{
minute_change++;
if(minute_change > 30) minute_change = 30;
sling_shot = 0;
}
//=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
minutes_alarm -= minute_change;
if(minutes_alarm > 60)
{
minutes_alarm = 59;
hours_alarm--;
if(hours_alarm == 0) hours_alarm = 12;
if(hours_alarm == 11)
{
if(ampm_alarm == AM)
ampm_alarm = PM;
else
ampm_alarm = AM;
}
}
//delay_ms(100);
}
//clear_display(); //Blink display
//delay_ms(100);
}
}
else
TIMSK2 = (1<<TOIE2); //Re-enable the timer 2 interrupt
}
}
/* set_task: reads messages from the user interface... */
void set_task(void)
{
/* message array */
char message[SI_UI_MAX_MESSAGE_SIZE];
/* time read from user interface */
int hours = 0, minutes = 0, seconds = 0;
/* set GUI size */
si_ui_set_size(400, 200);
while(1)
{
/* read a message */
si_ui_receive(message);
/* check if it is a set message */
if (strncmp(message, "set:", 4) == 0)
{
time_from_set_message(message, &hours, &minutes, &seconds);
if (time_ok(hours, minutes, seconds))
{
set_time(hours, minutes, seconds);
}
else
{
si_ui_show_error("Illegal value for hours, minutes or seconds");
}
}
/* check if it is an alarm message */
else if (strncmp(message, "alarm:", 6) == 0)
{
time_from_alarm_message(message, &hours, &minutes, &seconds);
if (time_ok(hours, minutes, seconds))
{
set_alarm(hours, minutes, seconds);
display_alarm_time(hours,minutes,seconds);
}
else
{
si_ui_show_error("Illegal value for hours, minutes or seconds");
}
}
/* check if it is an reset message */
else if (strncmp(message, "reset", 5) == 0)
{
erase_alarm_time();
erase_alarm_text();
reset_alarm();
}
/* check if it is an exit message */
else if (strcmp(message, "exit") == 0)
{
exit(0);
}
/* not a legal message */
else
{
si_ui_show_error("unexpected message type");
}
}
}
