Add power control of key switch board
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@ -50,6 +50,8 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
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/* Boot Magic salt key: Space */
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/* Boot Magic salt key: Space */
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#define BOOTMAGIC_KEY_SALT KC_FN6
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#define BOOTMAGIC_KEY_SALT KC_FN6
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/* power control of key switch board */
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#define HHKB_POWER_SAVING
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/*
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/*
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* Hardware Serial(UART)
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* Hardware Serial(UART)
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@ -41,17 +41,31 @@ static inline void KEY_UNABLE(void) { (PORTB |= (1<<6)); }
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static inline bool KEY_STATE(void) { return (PIND & (1<<7)); }
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static inline bool KEY_STATE(void) { return (PIND & (1<<7)); }
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static inline void KEY_PREV_ON(void) { (PORTB |= (1<<7)); }
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static inline void KEY_PREV_ON(void) { (PORTB |= (1<<7)); }
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static inline void KEY_PREV_OFF(void) { (PORTB &= ~(1<<7)); }
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static inline void KEY_PREV_OFF(void) { (PORTB &= ~(1<<7)); }
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#ifdef HHKB_POWER_SAVING
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static inline void KEY_POWER_ON(void) {
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_delay_ms(10); // TODO: sleep to save power
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DDRB = 0xFF; PORTB = 0x40; // change pins output
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DDRD |= (1<<4); PORTD |= (1<<4); // MOS FET switch on
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/* Without this wait you will miss or get false key events. */
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_delay_ms(1); // wait for powering up
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}
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static inline void KEY_POWER_OFF(void) {
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/* input with pull-up consumes less than without it when pin is open. */
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DDRB = 0x00; PORTB = 0xFF; // change pins input with pull-up
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DDRD |= (1<<4); PORTD &= ~(1<<4); // MOS FET switch off
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}
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#else
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static inline void KEY_POWER_ON(void) {}
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static inline void KEY_POWER_ON(void) {}
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static inline void KEY_POWER_OFF(void) {}
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static inline void KEY_POWER_OFF(void) {}
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#endif
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static inline void KEY_INIT(void)
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static inline void KEY_INIT(void)
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{
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{
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/* row,col,prev: output */
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DDRB = 0xFF;
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DDRB = 0xFF;
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PORTB = 0x00;
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PORTB = 0x40; // unable
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/* key: input with pull-up */
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DDRD &= ~0x80;
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DDRD &= ~0x80;
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PORTD |= 0x80;
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PORTD |= 0x80;
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/* keyswitch board power on */
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DDRD |= (1<<4);
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PORTD |= (1<<4);
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#ifdef HHKB_JP
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#ifdef HHKB_JP
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/* row extention for HHKB JP */
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/* row extention for HHKB JP */
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DDRC |= (1<<6|1<<7);
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DDRC |= (1<<6|1<<7);
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@ -59,6 +73,8 @@ static inline void KEY_INIT(void)
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#endif
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#endif
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KEY_UNABLE();
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KEY_UNABLE();
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KEY_PREV_OFF();
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KEY_PREV_OFF();
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KEY_POWER_OFF();
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}
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}
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static inline void KEY_SELECT(uint8_t ROW, uint8_t COL)
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static inline void KEY_SELECT(uint8_t ROW, uint8_t COL)
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{
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{
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