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DO NOT USE - debounce successfully compiled.

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alex-ong 2019-01-26 17:03:46 +11:00
parent 3949ab322d
commit d0b691df0e
7 changed files with 251 additions and 65 deletions
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21
common_features.mk
View file

@ -249,11 +249,15 @@ endif
include $(DRIVER_PATH)/qwiic/qwiic.mk
QUANTUM_SRC:= \
$(QUANTUM_DIR)/quantum.c \
$(QUANTUM_DIR)/keymap_common.c \
$(QUANTUM_DIR)/keycode_config.c
# Include the standard or split matrix code if needed
ifneq ($(strip $(CUSTOM_MATRIX)), yes)
ifeq ($(strip $(SPLIT_KEYBOARD)), yes)
@ -263,11 +267,22 @@ ifneq ($(strip $(CUSTOM_MATRIX)), yes)
endif
endif
# Include the standard debounce code if needed
ifneq ($(strip $(CUSTOM_DEBOUNCE)), yes)
QUANTUM_SRC += $(QUANTUM_DIR)/debounce.c
DEBOUNCE_DIR:= $(QUANTUM_DIR)/debounce
# Debounce Modules. If implemented in matrix.c, don't use these.
ifeq ($(strip $(DEBOUNCE_ALGO)), manual)
# Do nothing. do your debouncing in matrix.c
else ifeq ($(strip $(DEBOUNCE_ALGO)), sym_g)
QUANTUM_SRC += $(DEBOUNCE_DIR)/debounce_sym_g.c
else ifeq ($(strip $(DEBOUNCE_ALGO)), eager_pk)
QUANTUM_SRC += $(DEBOUNCE_DIR)/debounce_eager_pk.c
else ifeq ($(strip $(CUSTOM_MATRIX)), yes)
# Do nothing. Custom matrix code.
else # default algorithm
QUANTUM_SRC += $(DEBOUNCE_DIR)/debounce_sym_g.c
endif
ifeq ($(strip $(SPLIT_KEYBOARD)), yes)
OPT_DEFS += -DSPLIT_KEYBOARD

52
quantum/debounce.c
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@ -1,52 +0,0 @@
#include "matrix.h"
#include "timer.h"
#include "quantum.h"
#ifndef DEBOUNCING_DELAY
# define DEBOUNCING_DELAY 5
#endif
void debounce_init(uint8_t num_rows) {
}
#if DEBOUNCING_DELAY > 0
static bool debouncing = false;
void debounce(matrix_row_t raw[], matrix_row_t cooked[], uint8_t num_rows, bool changed) {
static uint16_t debouncing_time;
if (changed) {
debouncing = true;
debouncing_time = timer_read();
}
if (debouncing && (timer_elapsed(debouncing_time) > DEBOUNCING_DELAY)) {
for (uint8_t i = 0; i < num_rows; i++) {
cooked[i] = raw[i];
}
debouncing = false;
}
}
bool debounce_active(void) {
return debouncing;
}
#else
// no debounce
void debounce(matrix_row_t raw[], matrix_row_t cooked[], uint8_t num_rows, bool changed) {
if (changed)
{
for (uint8_t i = 0; i < num_rows; i++) {
cooked[i] = raw[i];
}
}
}
bool debounce_active(void) {
return false;
}
#endif

25
quantum/debounce.h
View file

@ -1,11 +1,26 @@
#pragma once
/*
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/>.
*/
#include "matrix.h"
void debounce_init(void); //every debounce algorithm will have unique storage needs.
// raw is the current key state
// on entry cooked is the previous debounced state
// on exit cooked is the current debounced state
// cooked is the debounced input/output key state
// changed is true if raw has changed since the last call
void debounce(matrix_row_t raw[], matrix_row_t cooked[], uint8_t num_rows, bool changed);
void debounce(matrix_row_t raw[], matrix_row_t cooked[], bool changed);
bool debounce_active(void);
void debounce_init(uint8_t num_rows);

123
quantum/debounce/debounce_eager_pk.c Normal file
View file

@ -0,0 +1,123 @@
/*
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 "debounce.h"
#include "matrix.h"
#include "timer.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 matrix_row_t matrix_debounced[MATRIX_ROWS];
static debounce_counter_t debounce_counters[MATRIX_ROWS*MATRIX_COLS];
#define DEBOUNCE_ELAPSED 251
#define MAX_DEBOUNCE (DEBOUNCE_ELAPSED - 1)
void update_debounce_counters(uint8_t current_time);
void transfer_matrix_values(uint8_t current_time);
void matrix_debounce_init(void)
{
for (uint8_t r = 0; r < MATRIX_ROWS; r++)
{
matrix_debounced[r] = 0;
}
int i = 0;
for (uint8_t r = 0; r < MATRIX_ROWS; r++)
{
for (uint8_t c = 0; c < MATRIX_COLS; c++)
{
debounce_counters[i++] = DEBOUNCE_ELAPSED;
}
}
}
void matrix_debounce(void)
{
uint8_t current_time = timer_read() % MAX_DEBOUNCE;
update_debounce_counters(current_time);
transfer_matrix_values(current_time);
}
//If the current time is > debounce counter, set the counter to enable input.
void update_debounce_counters(uint8_t current_time)
{
debounce_counter_t *debounce_pointer = debounce_counters;
for (uint8_t row = 0; row < MATRIX_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) >=
DEBOUNCING_DELAY) {
*debounce_pointer = DEBOUNCE_ELAPSED;
}
}
debounce_pointer++;
}
}
}
// upload from raw_matrix to final matrix;
void transfer_matrix_values(uint8_t current_time)
{
debounce_counter_t *debounce_pointer = debounce_counters;
for (uint8_t row = 0; row < MATRIX_ROWS; row++)
{
matrix_row_t existing_row = matrix_debounced[row];
matrix_row_t raw_row = matrix_get_row(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++;
}
matrix_debounced[row] = existing_row;
}
}
//Implementation of no debounce.

58
quantum/debounce/debounce_sym_g.c Normal file
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@ -0,0 +1,58 @@
/*
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 global debounce algorithm. Used in 99% of keyboards at time of implementation
When no state changes have occured for DEBOUNCE milliseconds, we push the state.
*/
#include "debounce.h"
#include "matrix.h"
#include "timer.h"
#ifndef DEBOUNCE
#define DEBOUNCE 5
#endif
static bool debouncing = false;
static uint16_t debouncing_time;
void debounce_init(void) {}
#if DEBOUNCE > 0
void debounce(matrix_row_t raw[], matrix_row_t cooked[], bool changed)
{
if (changed) {
debouncing = true;
debouncing_time = timer_read();
}
if (debouncing && timer_elapsed(debouncing_time) > DEBOUNCE) {
for (int i = 0; i < MATRIX_ROWS; i++) {
cooked[i] = raw[i];
}
debouncing = false;
}
}
#else //no debouncing.
void debounce(matrix_row_t raw[], matrix_row_t cooked[], bool changed)
{
for (int i = 0; i < MATRIX_ROWS; i++) {
cooked[i] = raw[i];
}
}
#endif
bool debounce_active() {
return debouncing;
}

28
quantum/debounce/readme.md Normal file
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@ -0,0 +1,28 @@
Debounce algorithms belong in this folder.
Here are a few ideas
1) Global vs Per-Key vs Per-Row
* Global - one timer for all keys. Any key change state affects global timer
* Per key - one timer per key
* Per row - one timer per row
2) Eager vs symmetric vs assymetric
* Eager - any key change is reported immediately. All further inputs for DEBOUNCE ms are ignored.
* Symmetric - wait for no changes for DEBOUNCE ms before reporting change
* Assymetric - wait for different times depending on key-down/key-up. E.g. Eager key-down, DEBOUNCE ms key up.
3) Timestamp vs cycles
* old old old code waits n cycles, decreasing count by one each matrix_scan
* newer code stores the millisecond the change occurred, and does subraction to figure out time elapsed.
* Timestamps are superior, i don't think cycles will ever be used again once upgraded.
The default algorithm is symmetric and global.
Here are a few that could be implemented:
debounce_sym_g.c
debounce_sym_pk.c
debounce_sym_pr.c
debounce_sym_pr_cycles.c //currently used in ergo-dox
debounce_eager_g.c
debounce_eager_pk.c
debounce_eager_pr.c //could be used in ergo-dox!

9
quantum/matrix.c
View file

@ -51,9 +51,8 @@ static const pin_t col_pins[MATRIX_COLS] = MATRIX_COL_PINS;
#endif
/* matrix state(1:on, 0:off) */
static matrix_row_t raw_matrix[MATRIX_ROWS];
static matrix_row_t matrix[MATRIX_ROWS];
static matrix_row_t raw_matrix[MATRIX_ROWS]; //raw values
static matrix_row_t matrix[MATRIX_ROWS]; //debounced values
#if (DIODE_DIRECTION == COL2ROW)
static void init_cols(void);
@ -123,7 +122,7 @@ void matrix_init(void) {
raw_matrix[i] = 0;
matrix[i] = 0;
}
debounce_init(MATRIX_ROWS);
debounce_init();
matrix_init_quantum();
}
@ -144,7 +143,7 @@ uint8_t matrix_scan(void)
}
#endif
debounce(raw_matrix, matrix, MATRIX_ROWS, changed);
debounce(raw_matrix, matrix, changed);
matrix_scan_quantum();
return 1;