hailey
/
qmk_firmware
mirror of https://github.com/hailey/qmk_firmware.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

added fixed debounce code

Browse Source
b6_b7_audio
IBNobody 9 years ago
parent e40c33f754
commit f403028974
1 changed files with 70 additions and 73 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Show Stats Download Patch File Download Diff File
  1. 143
      quantum/matrix.c

143
quantum/matrix.c
Unescape View File

@ -25,6 +25,19 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
#include "debug.h"
#include "util.h"
#include "matrix.h"
#include "timer.h"
/* Set 0 if debouncing isn't needed */
#ifndef DEBOUNCING_DELAY
# define DEBOUNCING_DELAY 5
#endif
#if (DEBOUNCING_DELAY > 0)
static uint16_t debouncing_time;
static bool debouncing = false;
#endif
#if (MATRIX_COLS <= 8)
# define print_matrix_header() print("\nr/c 01234567\n")
@ -44,15 +57,8 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
#endif
#ifdef MATRIX_MASKED
extern const matrix_row_t matrix_mask[];
#endif
/* Set 0 if debouncing isn't needed */
#ifndef DEBOUNCING_DELAY
# define DEBOUNCING_DELAY 5
extern const matrix_row_t matrix_mask[];
#endif
static uint8_t debouncing = DEBOUNCING_DELAY;
static const uint8_t row_pins[MATRIX_ROWS] = MATRIX_ROW_PINS;
static const uint8_t col_pins[MATRIX_COLS] = MATRIX_COL_PINS;
@ -66,13 +72,13 @@ static matrix_row_t matrix_debouncing[MATRIX_ROWS];
#if (DIODE_DIRECTION == COL2ROW)
static void init_cols(void);
static void read_cols_on_row(matrix_row_t current_matrix[], uint8_t current_row);
static bool read_cols_on_row(matrix_row_t current_matrix[], uint8_t current_row);
static void unselect_rows(void);
static void select_row(uint8_t row);
static void unselect_row(uint8_t row);
#else // ROW2COL
static void init_rows(void);
static void read_rows_on_col(matrix_row_t current_matrix[], uint8_t current_col);
static bool read_rows_on_col(matrix_row_t current_matrix[], uint8_t current_col);
static void unselect_cols(void);
static void unselect_col(uint8_t col);
static void select_col(uint8_t col);
@ -174,83 +180,56 @@ uint8_t matrix_scan(void)
// Set row, read cols
for (uint8_t current_row = 0; current_row < MATRIX_ROWS; current_row++) {
read_cols_on_row(matrix, current_row);
}
# if (DEBOUNCING_DELAY > 0)
bool matrix_changed = read_cols_on_row(matrix_debouncing, current_row);
// select_row(i);
// wait_us(30); // without this wait read unstable value.
// matrix_row_t current_row = read_cols();
// if (matrix_debouncing[i] != current_row) {
// matrix_debouncing[i] = current_row;
// if (debouncing) {
// debug("bounce!: "); debug_hex(debouncing); debug("\n");
// }
// debouncing = DEBOUNCING_DELAY;
// }
// unselect_row(i);
// }
// if (debouncing) {
// if (--debouncing) {
// wait_ms(1);
// } else {
// for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
// matrix[i] = matrix_debouncing[i];
// }
// }
// }
if (matrix_changed) {
debouncing = true;
debouncing_time = timer_read();
}
# else
read_cols_on_row(matrix, current_row);
# endif
}
#else // ROW2COL
// Set col, read rows
for (uint8_t current_col = 0; current_col < MATRIX_COLS; current_col++) {
read_rows_on_col(matrix, current_col);
}
# if (DEBOUNCING_DELAY > 0)
bool matrix_changed = read_rows_on_col(matrix_debouncing, current_col);
if (matrix_changed) {
debouncing = true;
debouncing_time = timer_read();
}
# else
read_rows_on_col(matrix, current_col);
# endif
// for (uint8_t i = 0; i < MATRIX_COLS; i++) {
// select_col(i);
// wait_us(30); // without this wait read unstable value.
// matrix_col_t current_col = read_rows();
// if (matrix_transposed_debouncing[i] != current_col) {
// matrix_transposed_debouncing[i] = current_col;
// if (debouncing) {
// debug("bounce!: "); debug_hex(debouncing); debug("\n");
// }
// debouncing = DEBOUNCING_DELAY;
// }
// unselect_col(i);
// }
// if (debouncing) {
// if (--debouncing) {
// wait_ms(1);
// } else {
// for (uint8_t i = 0; i < MATRIX_COLS; i++) {
// matrix_transposed[i] = matrix_transposed_debouncing[i];
// }
// }
// }
// // Untranspose matrix
// for (uint8_t y = 0; y < MATRIX_ROWS; y++) {
// matrix_row_t row = 0;
// for (uint8_t x = 0; x < MATRIX_COLS; x++) {
// row |= ((matrix_transposed[x] & (1<<y)) >> y) << x;
// }
// matrix[y] = row;
// }
}
#endif
# if (DEBOUNCING_DELAY > 0)
if (debouncing && (timer_elapsed(debouncing_time) > DEBOUNCING_DELAY)) {
for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
matrix[i] = matrix_debouncing[i];
}
debouncing = false;
}
# endif
matrix_scan_quantum();
// matrix_print();
return 1;
}
bool matrix_is_modified(void)
{
#if (DEBOUNCING_DELAY > 0)
if (debouncing) return false;
#endif
return true;
}
@ -305,8 +284,11 @@ static void init_cols(void)
}
}
static void read_cols_on_row(matrix_row_t current_matrix[], uint8_t current_row)
static bool read_cols_on_row(matrix_row_t current_matrix[], uint8_t current_row)
{
// Store last value of row prior to reading
matrix_row_t last_row_value = current_matrix[current_row];
// Clear data in matrix row
current_matrix[current_row] = 0;
@ -327,6 +309,8 @@ static void read_cols_on_row(matrix_row_t current_matrix[], uint8_t current_row)
// Unselect row
unselect_row(current_row);
return (last_row_value == current_matrix[current_row]);
}
static void select_row(uint8_t row)
@ -363,15 +347,20 @@ static void init_rows(void)
}
}
static void read_rows_on_col(matrix_row_t current_matrix[], uint8_t current_col)
static bool read_rows_on_col(matrix_row_t current_matrix[], uint8_t current_col)
{
bool matrix_changed = false;
// Select col and wait for col selecton to stabilize
select_col(current_col);
wait_us(30);
// For each row...
for(uint8_t row_index = 0; row_index < MATRIX_ROWS; row_index++) {
for(uint8_t row_index = 0; row_index < MATRIX_ROWS; row_index++)
{
// Store last value of row prior to reading
matrix_row_t last_row_value = current_matrix[row_index];
// Check row pin state
if ((_SFR_IO8(row_pins[row_index] >> 4) & _BV(row_pins[row_index] & 0xF)) == 0)
@ -384,10 +373,18 @@ static void read_rows_on_col(matrix_row_t current_matrix[], uint8_t current_col)
// Pin HI, clear col bit
current_matrix[row_index] &= ~(ROW_SHIFTER << current_col);
}
// Determine if the matrix changed state
if ((last_row_value != current_matrix[row_index]) && !(matrix_changed))
{
matrix_changed = true;
}
}
// Unselect col
unselect_col(current_col);
return matrix_changed;
}
static void select_col(uint8_t col)

Write Preview
Loading…
Cancel
Save