From f4030289744fc6dc82dd85c955070c0845813cc5 Mon Sep 17 00:00:00 2001 From: IBNobody Date: Sat, 29 Oct 2016 16:12:58 -0500 Subject: [PATCH] added fixed debounce code --- quantum/matrix.c | 143 +++++++++++++++++++++++------------------------ 1 file changed, 70 insertions(+), 73 deletions(-) diff --git a/quantum/matrix.c b/quantum/matrix.c index f45b251e4..3c488b417 100644 --- a/quantum/matrix.c +++ b/quantum/matrix.c @@ -25,6 +25,19 @@ along with this program. If not, see . #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 . #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) << 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)