diff options
| author | tmk <nobody@nowhere> | 2014-10-02 09:58:47 +0900 |
|---|---|---|
| committer | tmk <nobody@nowhere> | 2014-10-02 09:58:47 +0900 |
| commit | 6c06b9031fd09479d552f9750a3b1cfe259678fd (patch) | |
| tree | 1519d8c40ca11fb7f76b6e503c1294a0f943d373 /keyboard | |
| parent | bfd2d969b48eb2f381137383c6262b60e03cf5b1 (diff) | |
Add power control of key switch board
Diffstat (limited to 'keyboard')
| -rw-r--r-- | keyboard/hhkb_rn42/config.h | 2 | ||||
| -rw-r--r-- | keyboard/hhkb_rn42/hhkb_avr.h | 26 |
2 files changed, 23 insertions, 5 deletions
diff --git a/keyboard/hhkb_rn42/config.h b/keyboard/hhkb_rn42/config.h index a46c7a8bf0..21e73f1c53 100644 --- a/keyboard/hhkb_rn42/config.h +++ b/keyboard/hhkb_rn42/config.h @@ -50,6 +50,8 @@ along with this program. If not, see <http://www.gnu.org/licenses/>. /* Boot Magic salt key: Space */ #define BOOTMAGIC_KEY_SALT KC_FN6 +/* power control of key switch board */ +#define HHKB_POWER_SAVING /* * Hardware Serial(UART) diff --git a/keyboard/hhkb_rn42/hhkb_avr.h b/keyboard/hhkb_rn42/hhkb_avr.h index b7bd507b5d..313effedfe 100644 --- a/keyboard/hhkb_rn42/hhkb_avr.h +++ b/keyboard/hhkb_rn42/hhkb_avr.h @@ -41,17 +41,31 @@ static inline void KEY_UNABLE(void) { (PORTB |= (1<<6)); } static inline bool KEY_STATE(void) { return (PIND & (1<<7)); } 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 +} +static inline void KEY_POWER_OFF(void) { + /* input with pull-up consumes less than without it when pin is open. */ + DDRB = 0x00; PORTB = 0xFF; // change pins input with pull-up + DDRD |= (1<<4); PORTD &= ~(1<<4); // MOS FET switch off +} +#else static inline void KEY_POWER_ON(void) {} static inline void KEY_POWER_OFF(void) {} +#endif static inline void KEY_INIT(void) { + /* row,col,prev: output */ DDRB = 0xFF; - PORTB = 0x00; + PORTB = 0x40; // unable + /* key: input with pull-up */ DDRD &= ~0x80; - PORTD |= 0x80; - /* keyswitch board power on */ - DDRD |= (1<<4); - PORTD |= (1<<4); + PORTD |= 0x80; #ifdef HHKB_JP /* row extention for HHKB JP */ DDRC |= (1<<6|1<<7); @@ -59,6 +73,8 @@ static inline void KEY_INIT(void) #endif KEY_UNABLE(); KEY_PREV_OFF(); + + KEY_POWER_OFF(); } static inline void KEY_SELECT(uint8_t ROW, uint8_t COL) { |