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added fixed debounce code

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This commit is contained in:
IBNobody 2016-10-29 16:12:58 -05:00
parent e40c33f754
commit f403028974
1 changed files with 70 additions and 73 deletions
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143
quantum/matrix.c
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@ -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")
@ -44,16 +57,9 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
#endif
#ifdef MATRIX_MASKED
extern const matrix_row_t matrix_mask[];
extern const matrix_row_t matrix_mask[];
#endif
/* Set 0 if debouncing isn't needed */
#ifndef DEBOUNCING_DELAY
# define DEBOUNCING_DELAY 5
#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);
if (matrix_changed) {
debouncing = true;
debouncing_time = timer_read();
}
# else
read_cols_on_row(matrix, current_row);
# endif
}
// 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];
// }
// }
// }
#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)