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avr: support emergency unlock

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Signed-off-by: Ralf Ramsauer <ralf@binary-kitchen.de>
This commit is contained in:
Ralf Ramsauer 2018-09-03 23:04:58 +00:00
parent 698a96e46b
commit 5fd19def77
1 changed files with 21 additions and 8 deletions
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29
avr-code/main.c
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@ -35,6 +35,7 @@ enum state_source {
BUTTON, BUTTON,
COMM, COMM,
TIMEOUT, TIMEOUT,
EMERGENCY,
}; };
static inline void set_schnapper(bool state) static inline void set_schnapper(bool state)
@ -120,8 +121,16 @@ static void update_state(unsigned char new_state, enum state_source source)
break; break;
} }
if (source == BUTTON) switch (source) {
case BUTTON:
ret = toupper(ret); ret = toupper(ret);
break;
case EMERGENCY:
ret = 'E';
break;
default:
break;
}
uart_putc(ret); uart_putc(ret);
} }
@ -207,13 +216,17 @@ int main(void)
sei(); sei();
for (;;) { for (;;) {
i = get_keys(); if (is_emergency()) {
if (i & GREEN) update_state(GREEN, EMERGENCY);
update_state(GREEN, BUTTON); } else {
else if (i & YELLOW) i = get_keys();
update_state(YELLOW, BUTTON); if (i & GREEN)
else if (i & RED) update_state(GREEN, BUTTON);
update_state(RED, BUTTON); else if (i & YELLOW)
update_state(YELLOW, BUTTON);
else if (i & RED)
update_state(RED, BUTTON);
}
set_leds(); set_leds();
} }
} }