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Add backlight level support for gh60 revB

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This commit is contained in:
Kai Ryu 2014-04-08 18:02:20 +09:00
parent 8b75dd43ba
commit d004baf727
1 changed files with 27 additions and 2 deletions
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27
keyboard/gh60/backlight.c
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@ -72,14 +72,39 @@ void backlight_set(uint8_t level)
}
}
#else
static const uint8_t backlight_table[] PROGMEM = {
0, 16, 128, 255
};
void backlight_set(uint8_t level)
{
if (level > 0) {
DDRF |= (1<<PF7 | 1<<PF6 | 1<<PF5 | 1<<PF4);
PORTF &= ~(1<<PF7 | 1<<PF6 | 1<<PF5 | 1<<PF4);
PORTF |= (1<<PF7 | 1<<PF6 | 1<<PF5 | 1<<PF4);
cli();
TIMSK1 |= ((1<<OCIE1A) | (1<<TOIE1));
TIFR1 |= (1<<TOV1);
sei();
OCR1A = pgm_read_byte(&backlight_table[level]);
}
else {
DDRF &= ~(1<<PF7 | 1<<PF6 | 1<<PF5 | 1<<PF4);
cli();
TIMSK1 |= ((1<<OCIE1A) | (1<<TOIE1));
TIFR1 |= (1<<TOV1);
sei();
OCR1A = 0;
}
}
ISR(TIMER1_COMPA_vect)
{
// LED off
PORTF |= (1<<PF7 | 1<<PF6 | 1<<PF5 | 1<<PF4);
}
ISR(TIMER1_OVF_vect)
{
// LED on
PORTF &= ~(1<<PF7 | 1<<PF6 | 1<<PF5 | 1<<PF4);
}
#endif