added fixed debounce code
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IBNobody
parent
e40c33f754
commit
f403028974
143
quantum/matrix.c
143
quantum/matrix.c
@ -25,6 +25,19 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
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#include "debug.h"
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#include "util.h"
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#include "matrix.h"
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#include "timer.h"
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/* Set 0 if debouncing isn't needed */
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#ifndef DEBOUNCING_DELAY
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# define DEBOUNCING_DELAY 5
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#endif
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#if (DEBOUNCING_DELAY > 0)
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static uint16_t debouncing_time;
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static bool debouncing = false;
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#endif
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#if (MATRIX_COLS <= 8)
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# define print_matrix_header() print("\nr/c 01234567\n")
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@ -44,16 +57,9 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
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#endif
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#ifdef MATRIX_MASKED
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extern const matrix_row_t matrix_mask[];
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extern const matrix_row_t matrix_mask[];
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#endif
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/* Set 0 if debouncing isn't needed */
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#ifndef DEBOUNCING_DELAY
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# define DEBOUNCING_DELAY 5
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#endif
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static uint8_t debouncing = DEBOUNCING_DELAY;
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static const uint8_t row_pins[MATRIX_ROWS] = MATRIX_ROW_PINS;
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static const uint8_t col_pins[MATRIX_COLS] = MATRIX_COL_PINS;
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@ -66,13 +72,13 @@ static matrix_row_t matrix_debouncing[MATRIX_ROWS];
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#if (DIODE_DIRECTION == COL2ROW)
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static void init_cols(void);
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static void read_cols_on_row(matrix_row_t current_matrix[], uint8_t current_row);
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static bool read_cols_on_row(matrix_row_t current_matrix[], uint8_t current_row);
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static void unselect_rows(void);
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static void select_row(uint8_t row);
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static void unselect_row(uint8_t row);
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#else // ROW2COL
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static void init_rows(void);
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static void read_rows_on_col(matrix_row_t current_matrix[], uint8_t current_col);
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static bool read_rows_on_col(matrix_row_t current_matrix[], uint8_t current_col);
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static void unselect_cols(void);
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static void unselect_col(uint8_t col);
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static void select_col(uint8_t col);
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@ -174,83 +180,56 @@ uint8_t matrix_scan(void)
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// Set row, read cols
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for (uint8_t current_row = 0; current_row < MATRIX_ROWS; current_row++) {
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read_cols_on_row(matrix, current_row);
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# if (DEBOUNCING_DELAY > 0)
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bool matrix_changed = read_cols_on_row(matrix_debouncing, current_row);
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if (matrix_changed) {
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debouncing = true;
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debouncing_time = timer_read();
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}
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# else
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read_cols_on_row(matrix, current_row);
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# endif
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}
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// select_row(i);
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// wait_us(30); // without this wait read unstable value.
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// matrix_row_t current_row = read_cols();
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// if (matrix_debouncing[i] != current_row) {
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// matrix_debouncing[i] = current_row;
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// if (debouncing) {
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// debug("bounce!: "); debug_hex(debouncing); debug("\n");
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// }
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// debouncing = DEBOUNCING_DELAY;
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// }
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// unselect_row(i);
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// }
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// if (debouncing) {
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// if (--debouncing) {
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// wait_ms(1);
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// } else {
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// for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
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// matrix[i] = matrix_debouncing[i];
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// }
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// }
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// }
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#else // ROW2COL
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// Set col, read rows
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for (uint8_t current_col = 0; current_col < MATRIX_COLS; current_col++) {
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read_rows_on_col(matrix, current_col);
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# if (DEBOUNCING_DELAY > 0)
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bool matrix_changed = read_rows_on_col(matrix_debouncing, current_col);
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if (matrix_changed) {
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debouncing = true;
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debouncing_time = timer_read();
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}
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# else
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read_rows_on_col(matrix, current_col);
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# endif
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}
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// for (uint8_t i = 0; i < MATRIX_COLS; i++) {
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// select_col(i);
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// wait_us(30); // without this wait read unstable value.
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// matrix_col_t current_col = read_rows();
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// if (matrix_transposed_debouncing[i] != current_col) {
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// matrix_transposed_debouncing[i] = current_col;
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// if (debouncing) {
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// debug("bounce!: "); debug_hex(debouncing); debug("\n");
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// }
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// debouncing = DEBOUNCING_DELAY;
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// }
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// unselect_col(i);
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// }
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// if (debouncing) {
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// if (--debouncing) {
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// wait_ms(1);
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// } else {
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// for (uint8_t i = 0; i < MATRIX_COLS; i++) {
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// matrix_transposed[i] = matrix_transposed_debouncing[i];
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// }
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// }
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// }
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// // Untranspose matrix
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// for (uint8_t y = 0; y < MATRIX_ROWS; y++) {
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// matrix_row_t row = 0;
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// for (uint8_t x = 0; x < MATRIX_COLS; x++) {
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// row |= ((matrix_transposed[x] & (1<<y)) >> y) << x;
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// }
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// matrix[y] = row;
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// }
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#endif
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# if (DEBOUNCING_DELAY > 0)
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if (debouncing && (timer_elapsed(debouncing_time) > DEBOUNCING_DELAY)) {
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for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
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matrix[i] = matrix_debouncing[i];
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}
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debouncing = false;
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}
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# endif
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matrix_scan_quantum();
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// matrix_print();
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return 1;
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}
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bool matrix_is_modified(void)
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{
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#if (DEBOUNCING_DELAY > 0)
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if (debouncing) return false;
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#endif
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return true;
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}
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@ -305,8 +284,11 @@ static void init_cols(void)
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}
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}
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static void read_cols_on_row(matrix_row_t current_matrix[], uint8_t current_row)
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static bool read_cols_on_row(matrix_row_t current_matrix[], uint8_t current_row)
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{
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// Store last value of row prior to reading
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matrix_row_t last_row_value = current_matrix[current_row];
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// Clear data in matrix row
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current_matrix[current_row] = 0;
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@ -327,6 +309,8 @@ static void read_cols_on_row(matrix_row_t current_matrix[], uint8_t current_row)
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// Unselect row
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unselect_row(current_row);
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return (last_row_value == current_matrix[current_row]);
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}
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static void select_row(uint8_t row)
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@ -363,15 +347,20 @@ static void init_rows(void)
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}
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}
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static void read_rows_on_col(matrix_row_t current_matrix[], uint8_t current_col)
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static bool read_rows_on_col(matrix_row_t current_matrix[], uint8_t current_col)
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{
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bool matrix_changed = false;
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// Select col and wait for col selecton to stabilize
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select_col(current_col);
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wait_us(30);
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// For each row...
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for(uint8_t row_index = 0; row_index < MATRIX_ROWS; row_index++) {
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for(uint8_t row_index = 0; row_index < MATRIX_ROWS; row_index++)
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{
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// Store last value of row prior to reading
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matrix_row_t last_row_value = current_matrix[row_index];
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// Check row pin state
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if ((_SFR_IO8(row_pins[row_index] >> 4) & _BV(row_pins[row_index] & 0xF)) == 0)
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@ -384,10 +373,18 @@ static void read_rows_on_col(matrix_row_t current_matrix[], uint8_t current_col)
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// Pin HI, clear col bit
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current_matrix[row_index] &= ~(ROW_SHIFTER << current_col);
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}
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// Determine if the matrix changed state
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if ((last_row_value != current_matrix[row_index]) && !(matrix_changed))
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{
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matrix_changed = true;
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}
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}
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// Unselect col
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unselect_col(current_col);
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return matrix_changed;
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}
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static void select_col(uint8_t col)
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