167 lines
4.9 KiB
C
167 lines
4.9 KiB
C
#ifndef HHKB_AVR_H
|
|
#define HHKB_AVR_H
|
|
|
|
#include <stdint.h>
|
|
#include <stdbool.h>
|
|
#include <avr/io.h>
|
|
#include <avr/interrupt.h>
|
|
#include <util/delay.h>
|
|
|
|
|
|
// Timer resolution check
|
|
#if (1000000/TIMER_RAW_FREQ > 20)
|
|
# error "Timer resolution(>20us) is not enough for HHKB matrix scan tweak on V-USB."
|
|
#endif
|
|
|
|
|
|
/*
|
|
* HHKB Matrix I/O
|
|
*
|
|
* row: HC4051[A,B,C] selects scan row0-7
|
|
* row-ext: [En0,En1] row extention for JP
|
|
* col: LS145[A,B,C,D] selects scan col0-7 and enable(D)
|
|
* key: on: 0/off: 1
|
|
* prev: hysteresis control: assert(1) when previous key state is on
|
|
*/
|
|
|
|
|
|
#if defined(__AVR_ATmega32U4__)
|
|
/*
|
|
* For TMK HHKB alt controller(ATMega32U4)
|
|
*
|
|
* row: PB0-2
|
|
* col: PB3-5,6
|
|
* key: PD7(pull-uped)
|
|
* prev: PB7
|
|
* power: PD4(L:off/H:on)
|
|
* row-ext: PC6,7 for HHKB JP(active low)
|
|
*/
|
|
static inline void KEY_ENABLE(void) { (PORTB &= ~(1<<6)); }
|
|
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) {
|
|
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(5); // 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
|
|
}
|
|
static inline bool KEY_POWER_STATE(void) { return PORTD & (1<<4); }
|
|
#else
|
|
static inline void KEY_POWER_ON(void) {}
|
|
static inline void KEY_POWER_OFF(void) {}
|
|
static inline bool KEY_POWER_STATE(void) { return true; }
|
|
#endif
|
|
static inline void KEY_INIT(void)
|
|
{
|
|
/* row,col,prev: output */
|
|
DDRB = 0xFF;
|
|
PORTB = 0x40; // unable
|
|
/* key: input with pull-up */
|
|
DDRD &= ~0x80;
|
|
PORTD |= 0x80;
|
|
#ifdef HHKB_JP
|
|
/* row extention for HHKB JP */
|
|
DDRC |= (1<<6|1<<7);
|
|
PORTC |= (1<<6|1<<7);
|
|
#endif
|
|
KEY_UNABLE();
|
|
KEY_PREV_OFF();
|
|
|
|
KEY_POWER_OFF();
|
|
}
|
|
static inline void KEY_SELECT(uint8_t ROW, uint8_t COL)
|
|
{
|
|
PORTB = (PORTB & 0xC0) | (((COL) & 0x07)<<3) | ((ROW) & 0x07);
|
|
#ifdef HHKB_JP
|
|
if ((ROW) & 0x08) PORTC = (PORTC & ~(1<<6|1<<7)) | (1<<6);
|
|
else PORTC = (PORTC & ~(1<<6|1<<7)) | (1<<7);
|
|
#endif
|
|
}
|
|
|
|
|
|
#elif defined(__AVR_AT90USB1286__)
|
|
/*
|
|
* For Teensy++(AT90USB1286)
|
|
*
|
|
* HHKB pro HHKB pro2
|
|
* row: PB0-2 (6-8) (5-7)
|
|
* col: PB3-5,6 (9-12) (8-11)
|
|
* key: PE6(pull-uped) (4) (3)
|
|
* prev: PE7 (5) (4)
|
|
*
|
|
* TODO: convert into 'staitc inline' function
|
|
*/
|
|
#define KEY_INIT() do { \
|
|
DDRB |= 0x7F; \
|
|
DDRE |= (1<<7); \
|
|
DDRE &= ~(1<<6); \
|
|
PORTE |= (1<<6); \
|
|
} while (0)
|
|
#define KEY_SELECT(ROW, COL) (PORTB = (PORTB & 0xC0) | \
|
|
(((COL) & 0x07)<<3) | \
|
|
((ROW) & 0x07))
|
|
#define KEY_ENABLE() (PORTB &= ~(1<<6))
|
|
#define KEY_UNABLE() (PORTB |= (1<<6))
|
|
#define KEY_STATE() (PINE & (1<<6))
|
|
#define KEY_PREV_ON() (PORTE |= (1<<7))
|
|
#define KEY_PREV_OFF() (PORTE &= ~(1<<7))
|
|
#define KEY_POWER_ON()
|
|
#define KEY_POWER_OFF()
|
|
|
|
|
|
#else
|
|
# error "define code for matrix scan"
|
|
#endif
|
|
|
|
|
|
#if 0
|
|
// For ATMega328P with V-USB
|
|
//
|
|
// #elif defined(__AVR_ATmega328P__)
|
|
// Ports for V-USB
|
|
// key: PB0(pull-uped)
|
|
// prev: PB1
|
|
// row: PB2-4
|
|
// col: PC0-2,3
|
|
// power: PB5(Low:on/Hi-z:off)
|
|
#define KEY_INIT() do { \
|
|
DDRB |= 0x3E; \
|
|
DDRB &= ~(1<<0); \
|
|
PORTB |= 1<<0; \
|
|
DDRC |= 0x0F; \
|
|
KEY_UNABLE(); \
|
|
KEY_PREV_OFF(); \
|
|
} while (0)
|
|
#define KEY_SELECT(ROW, COL) do { \
|
|
PORTB = (PORTB & 0xE3) | ((ROW) & 0x07)<<2; \
|
|
PORTC = (PORTC & 0xF8) | ((COL) & 0x07); \
|
|
} while (0)
|
|
#define KEY_ENABLE() (PORTC &= ~(1<<3))
|
|
#define KEY_UNABLE() (PORTC |= (1<<3))
|
|
#define KEY_STATE() (PINB & (1<<0))
|
|
#define KEY_PREV_ON() (PORTB |= (1<<1))
|
|
#define KEY_PREV_OFF() (PORTB &= ~(1<<1))
|
|
// Power supply switching
|
|
#define KEY_POWER_ON() do { \
|
|
KEY_INIT(); \
|
|
PORTB &= ~(1<<5); \
|
|
_delay_ms(1); \
|
|
} while (0)
|
|
#define KEY_POWER_OFF() do { \
|
|
DDRB &= ~0x3F; \
|
|
PORTB &= ~0x3F; \
|
|
DDRC &= ~0x0F; \
|
|
PORTC &= ~0x0F; \
|
|
} while (0)
|
|
#endif
|
|
|
|
#endif
|