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qmk_firmware

custom branch of QMK firmware git clone https://anongit.hacktivis.me/git/qmk_firmware.git

hhkb_avr.h (5016B)

    

  1. #pragma once
  3. #include <stdint.h>
  4. #include <stdbool.h>
  5. #include <avr/io.h>
  6. #include <avr/interrupt.h>
  7. #include <util/delay.h>
  10. // Timer resolution check
  11. #if (1000000/TIMER_RAW_FREQ > 20)
  12. #   error "Timer resolution(>20us) is not enough for HHKB matrix scan tweak on V-USB."
  13. #endif
  16. /*
  17.  * HHKB Matrix I/O
  18.  *
  19.  * row:     HC4051[A,B,C]  selects scan row0-7
  20.  * row-ext: [En0,En1] row extention for JP
  21.  * col:     LS145[A,B,C,D] selects scan col0-7 and enable(D)
  22.  * key:     on: 0/off: 1
  23.  * prev:    hysteresis control: assert(1) when previous key state is on
  24.  */
  27. #if defined(__AVR_ATmega32U4__)
  28. /*
  29.  * For TMK HHKB alt controller(ATMega32U4)
  30.  *
  31.  * row:     PB0-2
  32.  * col:     PB3-5,6
  33.  * key:     PD7(pull-uped)
  34.  * prev:    PB7
  35.  * power:   PD4(L:off/H:on)
  36.  * row-ext: PC6,7 for HHKB JP(active low)
  37.  */
  38. static inline void KEY_ENABLE(void) { (PORTB &= ~(1<<6)); }
  39. static inline void KEY_UNABLE(void) { (PORTB |=  (1<<6)); }
  40. static inline bool KEY_STATE(void) { return (PIND & (1<<7)); }
  41. static inline void KEY_PREV_ON(void) { (PORTB |=  (1<<7)); }
  42. static inline void KEY_PREV_OFF(void) { (PORTB &= ~(1<<7)); }
  43. #ifdef HHKB_POWER_SAVING
  44. static inline void KEY_POWER_ON(void) {
  45.     DDRB = 0xFF; PORTB = 0x40;          // change pins output
  46.     DDRD |= (1<<4); PORTD |= (1<<4);    // MOS FET switch on
  47.     /* Without this wait you will miss or get false key events. */
  48.     _delay_ms(5);                       // wait for powering up
  49. }
  50. static inline void KEY_POWER_OFF(void) {
  51.     /* input with pull-up consumes less than without it when pin is open. */
  52.     DDRB = 0x00; PORTB = 0xFF;          // change pins input with pull-up
  53.     DDRD |= (1<<4); PORTD &= ~(1<<4);   // MOS FET switch off
  54. }
  55. static inline bool KEY_POWER_STATE(void) { return PORTD & (1<<4); }
  56. #else
  57. static inline void KEY_POWER_ON(void) {}
  58. static inline void KEY_POWER_OFF(void) {}
  59. static inline bool KEY_POWER_STATE(void) { return true; }
  60. #endif
  61. static inline void KEY_INIT(void)
  62. {
  63.     /* row,col,prev: output */
  64.     DDRB  = 0xFF;
  65.     PORTB = 0x40;   // unable
  66.     /* key: input with pull-up */
  67.     DDRD  &= ~0x80;
  68.     PORTD |=  0x80;
  70.     /* row extention for HHKB JP */
  71.     DDRC  |= (1<<6|1<<7);
  72.     PORTC |= (1<<6|1<<7);
  74.     KEY_UNABLE();
  75.     KEY_PREV_OFF();
  77.     KEY_POWER_OFF();
  78. }
  79. static inline void KEY_SELECT(uint8_t ROW, uint8_t COL)
  80. {
  81.     PORTB = (PORTB & 0xC0) | (((COL) & 0x07)<<3) | ((ROW) & 0x07);
  83.     if ((ROW) & 0x08) PORTC = (PORTC & ~(1<<6|1<<7)) | (1<<6);
  84.     else              PORTC = (PORTC & ~(1<<6|1<<7)) | (1<<7);
  86. }
  89. #elif defined(__AVR_AT90USB1286__)
  90. /*
  91.  * For Teensy++(AT90USB1286)
  92.  *
  93.  *                          HHKB pro    HHKB pro2
  94.  * row:     PB0-2           (6-8)       (5-7)
  95.  * col:     PB3-5,6         (9-12)      (8-11)
  96.  * key:     PE6(pull-uped)  (4)         (3)
  97.  * prev:    PE7             (5)         (4)
  98.  *
  99.  * TODO: convert into 'staitc inline' function
  100.  */
  101. #define KEY_INIT()              do {    \
  102.     DDRB |= 0x7F;                       \
  103.     DDRE |=  (1<<7);                    \
  104.     DDRE &= ~(1<<6);                    \
  105.     PORTE |= (1<<6);                    \
  106. } while (0)
  107. #define KEY_SELECT(ROW, COL)    (PORTB = (PORTB & 0xC0) |       \
  108.                                          (((COL) & 0x07)<<3) |  \
  109.                                          ((ROW) & 0x07))
  110. #define KEY_ENABLE()            (PORTB &= ~(1<<6))
  111. #define KEY_UNABLE()            (PORTB |=  (1<<6))
  112. #define KEY_STATE()             (PINE & (1<<6))
  113. #define KEY_PREV_ON()           (PORTE |=  (1<<7))
  114. #define KEY_PREV_OFF()          (PORTE &= ~(1<<7))
  115. #define KEY_POWER_ON()
  116. #define KEY_POWER_OFF()
  117. #define KEY_POWER_STATE()       true
  120. #else
  121. #   error "define code for matrix scan"
  122. #endif
  125. #if 0
  126. // For ATMega328P with V-USB
  127. //
  128. // #elif defined(__AVR_ATmega328P__)
  129. // Ports for V-USB
  130. // key:     PB0(pull-uped)
  131. // prev:    PB1
  132. // row:     PB2-4
  133. // col:     PC0-2,3
  134. // power:   PB5(Low:on/Hi-z:off)
  135. #define KEY_INIT()              do {    \
  136.     DDRB  |= 0x3E;                      \
  137.     DDRB  &= ~(1<<0);                   \
  138.     PORTB |= 1<<0;                      \
  139.     DDRC  |= 0x0F;                      \
  140.     KEY_UNABLE();                       \
  141.     KEY_PREV_OFF();                     \
  142. } while (0)
  143. #define KEY_SELECT(ROW, COL)    do {    \
  144.     PORTB = (PORTB & 0xE3) | ((ROW) & 0x07)<<2; \
  145.     PORTC = (PORTC & 0xF8) | ((COL) & 0x07);    \
  146. } while (0)
  147. #define KEY_ENABLE()            (PORTC &= ~(1<<3))
  148. #define KEY_UNABLE()            (PORTC |=  (1<<3))
  149. #define KEY_STATE()             (PINB & (1<<0))
  150. #define KEY_PREV_ON()           (PORTB |=  (1<<1))
  151. #define KEY_PREV_OFF()          (PORTB &= ~(1<<1))
  152. // Power supply switching
  153. #define KEY_POWER_ON()          do {    \
  154.     KEY_INIT();                         \
  155.     PORTB &= ~(1<<5);                   \
  156.     _delay_ms(1);                       \
  157. } while (0)
  158. #define KEY_POWER_OFF()         do {    \
  159.     DDRB  &= ~0x3F;                     \
  160.     PORTB &= ~0x3F;                     \
  161.     DDRC  &= ~0x0F;                     \
  162.     PORTC &= ~0x0F;                     \
  163. } while (0)
  164. #endif