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Diffstat (limited to 'keyboards/fc980c/matrix.c')
| -rw-r--r-- | keyboards/fc980c/matrix.c | 219 |
1 files changed, 0 insertions, 219 deletions
diff --git a/keyboards/fc980c/matrix.c b/keyboards/fc980c/matrix.c deleted file mode 100644 index 1126f3047a..0000000000 --- a/keyboards/fc980c/matrix.c +++ /dev/null @@ -1,219 +0,0 @@ -/* -Copyright 2017 Balz Guenat -based on work by Jun Wako <wakojun@gmail.com> - -This program is free software: you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation, either version 2 of the License, or -(at your option) any later version. - -This program is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with this program. If not, see <http://www.gnu.org/licenses/>. -*/ - -/* - * scan matrix - */ -#include <stdint.h> -#include <stdbool.h> -#include "wait.h" -#include "print.h" -#include "debug.h" -#include "util.h" -#include "timer.h" -#include "matrix.h" -#include "led.h" -// #include QMK_KEYBOARD_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 - - -/* - * Pin configuration for ATMega32U4 - * - * Row: PD4-6, PD7(~EN) - * Col: PB0-3 - * Key: PC6(pull-uped) - * Hys: PC7 - */ -static inline void KEY_ENABLE(void) { (PORTD &= ~(1<<7)); } -static inline void KEY_UNABLE(void) { (PORTD |= (1<<7)); } -static inline bool KEY_STATE(void) { return (PINC & (1<<6)); } -static inline void KEY_HYS_ON(void) { (PORTC |= (1<<7)); } -static inline void KEY_HYS_OFF(void) { (PORTC &= ~(1<<7)); } -static inline void KEY_INIT(void) -{ - /* Col */ - DDRB |= 0x0F; - /* Key: input with pull-up */ - DDRC &= ~(1<<6); - PORTC |= (1<<6); - /* Hys */ - DDRC |= (1<<7); - /* Row */ - DDRD |= 0xF0; - - KEY_UNABLE(); - KEY_HYS_OFF(); -} -static inline void SET_ROW(uint8_t ROW) -{ - // PD4-6 - PORTD = (PORTD & 0x8F) | ((ROW & 0x07) << 4); -} -static inline void SET_COL(uint8_t COL) -{ - // PB0-3 - PORTB = (PORTB & 0xF0) | (COL & 0x0F); -} - -static uint32_t matrix_last_modified = 0; - -// matrix state buffer(1:on, 0:off) -static matrix_row_t *matrix; -static matrix_row_t *matrix_prev; -static matrix_row_t _matrix0[MATRIX_ROWS]; -static matrix_row_t _matrix1[MATRIX_ROWS]; - - - -__attribute__ ((weak)) -void matrix_init_kb(void) { - matrix_init_user(); -} - -__attribute__ ((weak)) -void matrix_scan_kb(void) { - matrix_scan_user(); -} - -__attribute__ ((weak)) -void matrix_init_user(void) { -} - -__attribute__ ((weak)) -void matrix_scan_user(void) { -} - - -void matrix_init(void) -{ - debug_enable = true; - debug_matrix = true; - - KEY_INIT(); - - // LEDs on NumLock, CapsLock and ScrollLock(PB4, PB5, PB6) - DDRB |= (1<<4) | (1<<5) | (1<<6); - PORTB |= (1<<4) | (1<<5) | (1<<6); - - // initialize matrix state: all keys off - for (uint8_t i=0; i < MATRIX_ROWS; i++) _matrix0[i] = 0x00; - for (uint8_t i=0; i < MATRIX_ROWS; i++) _matrix1[i] = 0x00; - matrix = _matrix0; - matrix_prev = _matrix1; - matrix_init_quantum(); -} - -uint8_t matrix_scan(void) -{ - matrix_row_t *tmp; - - tmp = matrix_prev; - matrix_prev = matrix; - matrix = tmp; - - uint8_t row, col; - for (col = 0; col < MATRIX_COLS; col++) { - SET_COL(col); - for (row = 0; row < MATRIX_ROWS; row++) { - //KEY_SELECT(row, col); - SET_ROW(row); - _delay_us(2); - - // Not sure this is needed. This just emulates HHKB controller's behaviour. - if (matrix_prev[row] & (1<<col)) { - KEY_HYS_ON(); - } - _delay_us(10); - - // NOTE: KEY_STATE is valid only in 20us after KEY_ENABLE. - // If V-USB interrupts in this section we could lose 40us or so - // and would read invalid value from KEY_STATE. - uint8_t last = TIMER_RAW; - - KEY_ENABLE(); - - // Wait for KEY_STATE outputs its value. - _delay_us(2); - - if (KEY_STATE()) { - matrix[row] &= ~(1<<col); - } else { - matrix[row] |= (1<<col); - } - - // Ignore if this code region execution time elapses more than 20us. - // MEMO: 20[us] * (TIMER_RAW_FREQ / 1000000)[count per us] - // MEMO: then change above using this rule: a/(b/c) = a*1/(b/c) = a*(c/b) - if (TIMER_DIFF_RAW(TIMER_RAW, last) > 20/(1000000/TIMER_RAW_FREQ)) { - matrix[row] = matrix_prev[row]; - } - - _delay_us(5); - KEY_HYS_OFF(); - KEY_UNABLE(); - - // NOTE: KEY_STATE keep its state in 20us after KEY_ENABLE. - // This takes 25us or more to make sure KEY_STATE returns to idle state. - _delay_us(75); - } - if (matrix[row] ^ matrix_prev[row]) { - matrix_last_modified = timer_read32(); - } - } - matrix_scan_quantum(); - return 1; -} - -inline -matrix_row_t matrix_get_row(uint8_t row) { - return matrix[row]; -} - -void matrix_print(void) -{ -#if (MATRIX_COLS <= 8) - print("r/c 01234567\n"); -#elif (MATRIX_COLS <= 16) - print("r/c 0123456789ABCDEF\n"); -#elif (MATRIX_COLS <= 32) - print("r/c 0123456789ABCDEF0123456789ABCDEF\n"); -#endif - - for (uint8_t row = 0; row < MATRIX_ROWS; row++) { - -#if (MATRIX_COLS <= 8) - xprintf("%02X: %08b%s\n", row, bitrev(matrix_get_row(row)), -#elif (MATRIX_COLS <= 16) - xprintf("%02X: %016b%s\n", row, bitrev16(matrix_get_row(row)), -#elif (MATRIX_COLS <= 32) - xprintf("%02X: %032b%s\n", row, bitrev32(matrix_get_row(row)), -#endif -#ifdef MATRIX_HAS_GHOST - matrix_has_ghost_in_row(row) ? " <ghost" : "" -#else - "" -#endif - ); - } -} |