From 18525aa17b744436a2f35f7e5391820491dbc886 Mon Sep 17 00:00:00 2001 From: Balz Guenat Date: Sun, 26 Nov 2017 08:17:14 +0100 Subject: Fc660c port (#2060) * Port Hasu's FC660C controller to QMK * fix column mask --- keyboards/fc660c/matrix.c | 226 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 226 insertions(+) create mode 100644 keyboards/fc660c/matrix.c (limited to 'keyboards/fc660c/matrix.c') diff --git a/keyboards/fc660c/matrix.c b/keyboards/fc660c/matrix.c new file mode 100644 index 000000000..211506fdf --- /dev/null +++ b/keyboards/fc660c/matrix.c @@ -0,0 +1,226 @@ +/* +Copyright 2017 Balz Guenat +based on work by Jun Wako + +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 . +*/ + +/* + * scan matrix + */ +#include +#include +#include +#include "print.h" +#include "debug.h" +#include "util.h" +#include "timer.h" +#include "matrix.h" +#include "led.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, 7(~EN) + * Col: PB0-2, 3(Z5 ~EN), 4(Z4 ~EN) + * 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 |= 0x1F; + /* 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) +{ + // set row with unabling key + PORTD = (PORTD & 0x0F) | (1<<7) | ((ROW & 0x07) << 4); +} +static inline void SET_COL(uint8_t COL) +{ + // |PB3(Z5 ~EN)|PB4(Z4 ~EN) + // --------|-----------|----------- + // Col:0-7 |high |low + // Col:8-F |low |high + PORTB = (PORTB & 0xE0) | ((COL & 0x08) ? 1<<4 : 1<<3) | (COL & 0x07); +} + +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_quantum(void) { + matrix_init_kb(); +} + +__attribute__ ((weak)) +void matrix_scan_quantum(void) { + matrix_scan_kb(); +} + +__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) +{ + KEY_INIT(); + + // LEDs on CapsLock and Insert + DDRB |= (1<<5) | (1<<6); + PORTB |= (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< 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) ? 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