drashna/qmk_firmware
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Matrix power saving

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This commit is contained in:
tmk 2014-11-23 13:08:05 +09:00
parent c2d830c07c
commit 608ebe2686
6 changed files with 60 additions and 6 deletions
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5
keyboard/hhkb_rn42/hhkb_avr.h
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@ -43,11 +43,10 @@ static inline void KEY_PREV_ON(void) { (PORTB |= (1<<7)); }
static inline void KEY_PREV_OFF(void) { (PORTB &= ~(1<<7)); }
#ifdef HHKB_POWER_SAVING
static inline void KEY_POWER_ON(void) {
_delay_ms(10); // TODO: sleep to save power
DDRB = 0xFF; PORTB = 0x40; // change pins output
DDRD |= (1<<4); PORTD |= (1<<4); // MOS FET switch on
/* Without this wait you will miss or get false key events. */
_delay_ms(1); // wait for powering up
_delay_ms(5); // wait for powering up
}
static inline void KEY_POWER_OFF(void) {
/* input with pull-up consumes less than without it when pin is open. */
@ -74,7 +73,7 @@ static inline void KEY_INIT(void)
KEY_UNABLE();
KEY_PREV_OFF();
KEY_POWER_OFF();
KEY_POWER_ON();
}
static inline void KEY_SELECT(uint8_t ROW, uint8_t COL)
{