/* get all connected columns for one active row */
inline static uint8_t matrix_get_active_columns_by_row(int row)
{
uint8_t activerows = 0;
uint8_t activecolumns = 0;
matrix_activate_row(row, &activerows, &activecolumns);
return activecolumns;
}
/* get all connected columns for one active row */
inline static BYTE matrix_get_active_columns_by_row(int row)
{
BYTE activerows = 0;
BYTE activecolumns = 0;
matrix_activate_row(row, &activerows, &activecolumns);
return activecolumns;
}
static void matrix_activate_column(int column, BYTE *activerows, BYTE *activecolumns)
{
BYTE msk;
int m, i;
if ((1 << column) & ~(*activecolumns)) {
*activecolumns |= (1 << column);
msk = rev_keyarr[column];
/* loop over rows */
for (m = 0x1, i = 0; i < 8; m <<= 1, i++) {
/* activate each row connected to the given column */
if ((msk & m) & ~(*activerows)) {
matrix_activate_row(i, activerows, activecolumns);
}
}
}
}
