Clean up debounce a bit (#5255)
This commit is contained in:
parent
cdfcbfc92d
commit
c7c4937eef
8 changed files with 29 additions and 44 deletions
121
quantum/debounce/eager_pk.c
Normal file
121
quantum/debounce/eager_pk.c
Normal file
|
@ -0,0 +1,121 @@
|
|||
/*
|
||||
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
|
||||
|
||||
|
||||
#if (MATRIX_COLS <= 8)
|
||||
# define ROW_SHIFTER ((uint8_t)1)
|
||||
#elif (MATRIX_COLS <= 16)
|
||||
# define ROW_SHIFTER ((uint16_t)1)
|
||||
#elif (MATRIX_COLS <= 32)
|
||||
# define ROW_SHIFTER ((uint32_t)1)
|
||||
#endif
|
||||
|
||||
|
||||
|
||||
#define debounce_counter_t uint8_t
|
||||
|
||||
static debounce_counter_t *debounce_counters;
|
||||
|
||||
#define DEBOUNCE_ELAPSED 251
|
||||
#define MAX_DEBOUNCE (DEBOUNCE_ELAPSED - 1)
|
||||
|
||||
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 = timer_read() % MAX_DEBOUNCE;
|
||||
update_debounce_counters(num_rows, current_time);
|
||||
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)
|
||||
{
|
||||
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;
|
||||
}
|
||||
}
|
||||
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)
|
||||
{
|
||||
debounce_counter_t *debounce_pointer = debounce_counters;
|
||||
for (uint8_t row = 0; row < num_rows; row++)
|
||||
{
|
||||
matrix_row_t existing_row = cooked[row];
|
||||
matrix_row_t raw_row = raw[row];
|
||||
|
||||
for (uint8_t col = 0; col < MATRIX_COLS; col++)
|
||||
{
|
||||
matrix_row_t col_mask = (ROW_SHIFTER << col);
|
||||
bool final_value = raw_row & col_mask;
|
||||
bool existing_value = existing_row & col_mask;
|
||||
if (*debounce_pointer == DEBOUNCE_ELAPSED &&
|
||||
(existing_value != final_value))
|
||||
{
|
||||
*debounce_pointer = current_time;
|
||||
existing_row ^= col_mask; //flip the bit.
|
||||
}
|
||||
debounce_pointer++;
|
||||
}
|
||||
cooked[row] = existing_row;
|
||||
}
|
||||
}
|
||||
|
||||
bool debounce_active(void)
|
||||
{
|
||||
return true;
|
||||
}
|
||||
|
Loading…
Add table
Add a link
Reference in a new issue