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Made scanning more efficient

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This commit is contained in:
IBNobody 2016-10-29 10:39:03 -05:00
parent 4c6960835c
commit 32f88c0717
1 changed files with 25 additions and 32 deletions
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57
quantum/matrix.c
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@ -61,24 +61,18 @@ static const uint8_t col_pins[MATRIX_COLS] = MATRIX_COL_PINS;
static matrix_row_t matrix[MATRIX_ROWS];
static matrix_row_t matrix_raw[MATRIX_ROWS];
#if DIODE_DIRECTION == COL2ROW
static matrix_row_t matrix_debouncing[MATRIX_ROWS];
#else // ROW2COL
static matrix_col_t matrix_transposed[MATRIX_COLS];
static matrix_col_t matrix_transposed_debouncing[MATRIX_COLS];
#endif
#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 void 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 void 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);
@ -158,6 +152,10 @@ void matrix_init(void) {
#if (DIODE_DIRECTION == COL2ROW)
unselect_rows();
init_cols();
#else // ROW2COL
unselect_cols();
init_rows();
#endif
// initialize matrix state: all keys off
for (uint8_t i=0; i < MATRIX_ROWS; i++) {
@ -166,22 +164,6 @@ void matrix_init(void) {
matrix_debouncing[i] = 0;
}
#else // ROW2COL
unselect_cols();
init_rows();
// initialize matrix state: all keys off
for (uint8_t i=0; i < MATRIX_ROWS; i++) {
matrix_raw[i] = 0;
matrix[i] = 0;
}
// initialize matrix state: all keys off
for (uint8_t i=0; i < MATRIX_COLS; i++) {
matrix_transposed_debouncing[i] = 0;
}
#endif
matrix_init_quantum();
}
@ -262,7 +244,7 @@ uint8_t matrix_scan(void)
#endif
matrix_scan_quantum();
// matrix_print();
return 1;
}
@ -342,6 +324,9 @@ static void read_cols_on_row(matrix_row_t current_matrix[], uint8_t current_row)
// Populate the matrix row with the state of the col pin
current_matrix[current_row] |= pin_state ? 0 : (ROW_SHIFTER << col_index);
}
// Unselect row
unselect_row(current_row);
}
static void select_row(uint8_t row)
@ -388,13 +373,21 @@ static void read_rows_on_col(matrix_row_t current_matrix[], uint8_t current_col)
// For each row...
for(uint8_t row_index = 0; row_index < MATRIX_ROWS; row_index++) {
// Select the row pin to read (active low)
uint8_t pin = row_pins[row_index];
uint8_t pin_state = (_SFR_IO8(pin >> 4) & _BV(pin & 0xF));
// Populate the matrix row with the state of the col pin
current_matrix[row_index] &= pin_state ? ~(ROW_SHIFTER << current_col) : 0;
// Check row pin state
if ((_SFR_IO8(row_pins[row_index] >> 4) & _BV(row_pins[row_index] & 0xF)) == 0)
{
// Pin LO, set col bit
current_matrix[row_index] |= (ROW_SHIFTER << current_col);
}
else
{
// Pin HI, clear col bit
current_matrix[row_index] &= ~(ROW_SHIFTER << current_col);
}
}
// Unselect col
unselect_col(current_col);
}
static void select_col(uint8_t col)