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Eager pk/pr optimization (qmk#5621)
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* Optimizations to eager_pk

* eager_pr also uses changed boolean now.
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@alex-ong @drashna
alex-ong authored and drashna committed Apr 17, 2019
1 parent 590a07b commit 4c2444a
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Showing 2 changed files with 72 additions and 91 deletions.
89 changes: 38 additions & 51 deletions quantum/debounce/eager_pk.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -24,63 +24,61 @@ No further inputs are accepted until DEBOUNCE milliseconds have occurred.
#include <stdlib.h>

#ifndef DEBOUNCE
#define DEBOUNCE 5
# define DEBOUNCE 5
#endif


#if (MATRIX_COLS <= 8)
# define ROW_SHIFTER ((uint8_t)1)
# define ROW_SHIFTER ((uint8_t)1)
#elif (MATRIX_COLS <= 16)
# define ROW_SHIFTER ((uint16_t)1)
# define ROW_SHIFTER ((uint16_t)1)
#elif (MATRIX_COLS <= 32)
# define ROW_SHIFTER ((uint32_t)1)
# define ROW_SHIFTER ((uint32_t)1)
#endif



#define debounce_counter_t uint8_t

static debounce_counter_t *debounce_counters;
static bool counters_need_update;

#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++)
{
// 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)
{
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 (counters_need_update) {
update_debounce_counters(num_rows, current_time);
}

if (changed) {
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)
{
// 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)
{
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++;
Expand All @@ -89,33 +87,22 @@ void update_debounce_counters(uint8_t num_rows, uint8_t current_time)
}

// 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)
{
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++)
{
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);
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.
if ((delta & col_mask) && *debounce_pointer == DEBOUNCE_ELAPSED) {
*debounce_pointer = current_time;
counters_need_update = true;
existing_row ^= col_mask; // flip the bit.
}
debounce_pointer++;
}
cooked[row] = existing_row;
}
}

bool debounce_active(void)
{
return true;
}
}

bool debounce_active(void) { return true; }
74 changes: 34 additions & 40 deletions quantum/debounce/eager_pr.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -24,77 +24,71 @@ No further inputs are accepted until DEBOUNCE milliseconds have occurred.
#include <stdlib.h>

#ifndef DEBOUNCE
#define DEBOUNCE 5
# define DEBOUNCE 5
#endif


#define debounce_counter_t uint8_t

static debounce_counter_t *debounce_counters;
static bool counters_need_update;

#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*sizeof(debounce_counter_t));
for (uint8_t r = 0; r < num_rows; r++)
{
// 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 * sizeof(debounce_counter_t));
for (uint8_t r = 0; r < num_rows; r++) {
debounce_counters[r] = DEBOUNCE_ELAPSED;
}
}

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[], 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 (counters_need_update) {
update_debounce_counters(num_rows, current_time);
}

if (changed) {
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)
{
// 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++)
{
if (*debounce_pointer != DEBOUNCE_ELAPSED)
{
for (uint8_t row = 0; row < num_rows; row++) {
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)
{
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];

//determine new value basd on debounce pointer + raw value
if (*debounce_pointer == DEBOUNCE_ELAPSED &&
(existing_row != raw_row))
{
*debounce_pointer = current_time;
existing_row = raw_row;
for (uint8_t row = 0; row < num_rows; row++) {
matrix_row_t existing_row = cooked[row];
matrix_row_t raw_row = raw[row];

// determine new value basd on debounce pointer + raw value
if (*debounce_pointer == DEBOUNCE_ELAPSED && (existing_row != raw_row)) {
*debounce_pointer = current_time;
cooked[row] = raw_row;
counters_need_update = true;
}
cooked[row] = existing_row;

debounce_pointer++;
}
}

bool debounce_active(void)
{
return true;
debounce_pointer++;
}
}

bool debounce_active(void) { return true; }

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