size_t NKROKeyboardAPI::set(KeyboardKeycode k, bool s)
{
// Press keymap key
if (k < NKRO_KEY_COUNT){
uint8_t bit = 1 << (uint8_t(k) % 8);
if(s){
_keyReport.keys[k / 8] |= bit;
}
else{
_keyReport.keys[k / 8] &= ~bit;
}
return 1;
}
// It's a modifier key
else if(k >= KEY_LEFT_CTRL && k <= KEY_RIGHT_GUI)
{
// Convert key into bitfield (0 - 7)
k = KeyboardKeycode(uint8_t(k) - uint8_t(KEY_LEFT_CTRL));
if(s){
_keyReport.modifiers = (1 << k);
}
else{
_keyReport.modifiers &= ~(1 << k);
}
return 1;
}
// Its a custom key (outside our keymap)
else{
// Add k to the key report only if it's not already present
// and if there is an empty slot. Remove the first available key.
auto key = _keyReport.key;
// Is key already in the list or did we found an empty slot?
if (s && (key == uint8_t(k) || key == KEY_RESERVED)) {
_keyReport.key = k;
return 1;
}
// Test the key report to see if k is present. Clear it if it exists.
if (!s && (key == k)) {
_keyReport.key = KEY_RESERVED;
return 1;
}
}
// No empty/pressed key was found
return 0;
}
size_t KeyboardAPI::set(uint8_t k, bool s){
// Ignore invalid input
if(k >= sizeof(_asciimap)){
setWriteError();
return 0;
}
// Read key from ascii lookup table
uint16_t key = pgm_read_word(_asciimap + k);
auto ret = set(KeyboardKeycode((uint8_t)(key & 0xFF)), s);
// Only add modifier if keycode was successfully added before.
// Always try to release modifier (if used).
if(ret || !s){
if (key & MOD_LEFT_CTRL) {
ret |= set(KEY_LEFT_CTRL, s);
}
if (key & MOD_LEFT_SHIFT) {
ret |= set(KEY_LEFT_SHIFT, s);
}
if (key & MOD_LEFT_ALT) {
ret |= set(KEY_LEFT_ALT, s);
}
if (key & MOD_LEFT_GUI) {
ret |= set(KEY_LEFT_GUI, s);
}
if (key & MOD_RIGHT_CTRL) {
ret |= set(KEY_RIGHT_CTRL, s);
}
if (key & MOD_RIGHT_SHIFT) {
ret |= set(KEY_RIGHT_SHIFT, s);
}
if (key & MOD_RIGHT_ALT) {
ret |= set(KEY_RIGHT_ALT, s);
}
if (key & MOD_RIGHT_GUI) {
ret |= set(KEY_RIGHT_GUI, s);
}
}
return ret;
}
size_t DefaultKeyboardAPI::set(KeyboardKeycode k, bool s)
{
// It's a modifier key
if(k >= KEY_LEFT_CTRL && k <= KEY_RIGHT_GUI)
{
// Convert key into bitfield (0 - 7)
k = KeyboardKeycode(uint8_t(k) - uint8_t(KEY_LEFT_CTRL));
if(s){
_keyReport.modifiers |= (1 << k);
}
else{
_keyReport.modifiers &= ~(1 << k);
}
return 1;
}
// Its a normal key
else{
// Add k to the key report only if it's not already present
// and if there is an empty slot. Remove the first available key.
for (uint8_t i = 0; i < sizeof(_keyReport.keycodes); i++)
{
auto key = _keyReport.keycodes[i];
// Is key already in the list or did we found an empty slot?
if (s && (key == uint8_t(k) || key == KEY_RESERVED)) {
_keyReport.keycodes[i] = k;
return 1;
}
// Test the key report to see if k is present. Clear it if it exists.
if (!s && (key == k)) {
_keyReport.keycodes[i] = KEY_RESERVED;
return 1;
}
}
}
// No empty/pressed key was found
return 0;
}
