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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 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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#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_OFF(void) {} |
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#endif |
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static inline void KEY_INIT(void) |
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{ |
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/* row,col,prev: output */ |
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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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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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PORTD |= 0x80; |
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#ifdef HHKB_JP |
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/* row extention for HHKB JP */ |
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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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KEY_UNABLE(); |
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KEY_PREV_OFF(); |
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KEY_POWER_OFF(); |
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} |
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static inline void KEY_SELECT(uint8_t ROW, uint8_t COL) |
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{ |