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Add power control of key switch board

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This commit is contained in:
tmk 2014-10-02 09:58:47 +09:00
parent bfd2d969b4
commit 6c06b9031f
2 changed files with 23 additions and 5 deletions
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2
keyboard/hhkb_rn42/config.h
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@ -50,6 +50,8 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
/* Boot Magic salt key: Space */ /* Boot Magic salt key: Space */
#define BOOTMAGIC_KEY_SALT KC_FN6 #define BOOTMAGIC_KEY_SALT KC_FN6
/* power control of key switch board */
#define HHKB_POWER_SAVING
/* /*
* Hardware Serial(UART) * Hardware Serial(UART)

26
keyboard/hhkb_rn42/hhkb_avr.h
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@ -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 bool KEY_STATE(void) { return (PIND & (1<<7)); }
static inline void KEY_PREV_ON(void) { (PORTB |= (1<<7)); } static inline void KEY_PREV_ON(void) { (PORTB |= (1<<7)); }
static inline void KEY_PREV_OFF(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_ON(void) {}
static inline void KEY_POWER_OFF(void) {} static inline void KEY_POWER_OFF(void) {}
#endif
static inline void KEY_INIT(void) static inline void KEY_INIT(void)
{ {
/* row,col,prev: output */
DDRB = 0xFF; DDRB = 0xFF;
PORTB = 0x00; PORTB = 0x40; // unable
/* key: input with pull-up */
DDRD &= ~0x80; DDRD &= ~0x80;
PORTD |= 0x80; PORTD |= 0x80;
/* keyswitch board power on */
DDRD |= (1<<4);
PORTD |= (1<<4);
#ifdef HHKB_JP #ifdef HHKB_JP
/* row extention for HHKB JP */ /* row extention for HHKB JP */
DDRC |= (1<<6|1<<7); DDRC |= (1<<6|1<<7);
@ -59,6 +73,8 @@ static inline void KEY_INIT(void)
#endif #endif
KEY_UNABLE(); KEY_UNABLE();
KEY_PREV_OFF(); KEY_PREV_OFF();
KEY_POWER_OFF();
} }
static inline void KEY_SELECT(uint8_t ROW, uint8_t COL) static inline void KEY_SELECT(uint8_t ROW, uint8_t COL)
{ {