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Diffstat (limited to 'quantum/debounce/eager_pk.c')
| -rw-r--r-- | quantum/debounce/eager_pk.c | 118 |
1 files changed, 0 insertions, 118 deletions
diff --git a/quantum/debounce/eager_pk.c b/quantum/debounce/eager_pk.c deleted file mode 100644 index 93a40ad441..0000000000 --- a/quantum/debounce/eager_pk.c +++ /dev/null @@ -1,118 +0,0 @@ -/* -Copyright 2017 Alex Ong<the.onga@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/>. -*/ - -/* -Basic per-key algorithm. Uses an 8-bit counter per key. -After pressing a key, it immediately changes state, and sets a counter. -No further inputs are accepted until DEBOUNCE milliseconds have occurred. -*/ - -#include "matrix.h" -#include "timer.h" -#include "quantum.h" -#include <stdlib.h> - -#ifndef DEBOUNCE -# define DEBOUNCE 5 -#endif - -#define ROW_SHIFTER ((matrix_row_t)1) - -#define debounce_counter_t uint8_t - -static debounce_counter_t *debounce_counters; -static bool counters_need_update; -static bool matrix_need_update; - -#define DEBOUNCE_ELAPSED 251 -#define MAX_DEBOUNCE (DEBOUNCE_ELAPSED - 1) - -static uint8_t wrapping_timer_read(void) { - static uint16_t time = 0; - static uint8_t last_result = 0; - uint16_t new_time = timer_read(); - uint16_t diff = new_time - time; - time = new_time; - last_result = (last_result + diff) % (MAX_DEBOUNCE + 1); - return last_result; -} - -void update_debounce_counters(uint8_t num_rows, uint8_t current_time); -void transfer_matrix_values(matrix_row_t raw[], matrix_row_t cooked[], uint8_t num_rows, uint8_t current_time); - -// we use num_rows rather than MATRIX_ROWS to support split keyboards -void debounce_init(uint8_t num_rows) { - debounce_counters = (debounce_counter_t *)malloc(num_rows * MATRIX_COLS * sizeof(debounce_counter_t)); - int i = 0; - for (uint8_t r = 0; r < num_rows; r++) { - for (uint8_t c = 0; c < MATRIX_COLS; c++) { - debounce_counters[i++] = DEBOUNCE_ELAPSED; - } - } -} - -void debounce(matrix_row_t raw[], matrix_row_t cooked[], uint8_t num_rows, bool changed) { - uint8_t current_time = wrapping_timer_read(); - if (counters_need_update) { - update_debounce_counters(num_rows, current_time); - } - - if (changed || matrix_need_update) { - transfer_matrix_values(raw, cooked, num_rows, current_time); - } -} - -// If the current time is > debounce counter, set the counter to enable input. -void update_debounce_counters(uint8_t num_rows, uint8_t current_time) { - counters_need_update = false; - debounce_counter_t *debounce_pointer = debounce_counters; - for (uint8_t row = 0; row < num_rows; row++) { - for (uint8_t col = 0; col < MATRIX_COLS; col++) { - if (*debounce_pointer != DEBOUNCE_ELAPSED) { - if (TIMER_DIFF(current_time, *debounce_pointer, MAX_DEBOUNCE) >= DEBOUNCE) { - *debounce_pointer = DEBOUNCE_ELAPSED; - } else { - counters_need_update = true; - } - } - debounce_pointer++; - } - } -} - -// upload from raw_matrix to final matrix; -void transfer_matrix_values(matrix_row_t raw[], matrix_row_t cooked[], uint8_t num_rows, uint8_t current_time) { - matrix_need_update = false; - debounce_counter_t *debounce_pointer = debounce_counters; - for (uint8_t row = 0; row < num_rows; row++) { - matrix_row_t delta = raw[row] ^ cooked[row]; - matrix_row_t existing_row = cooked[row]; - for (uint8_t col = 0; col < MATRIX_COLS; col++) { - matrix_row_t col_mask = (ROW_SHIFTER << col); - if (delta & col_mask) { - if (*debounce_pointer == DEBOUNCE_ELAPSED) { - *debounce_pointer = current_time; - counters_need_update = true; - existing_row ^= col_mask; // flip the bit. - } else { - matrix_need_update = true; - } - } - debounce_pointer++; - } - cooked[row] = existing_row; - } -} - -bool debounce_active(void) { return true; } |