void usb_keyboard_write_unicode(uint16_t cpoint)
{
KEYCODE_TYPE keycode;
keycode = unicode_to_keycode(cpoint);
if (keycode) {
#ifdef DEADKEYS_MASK
KEYCODE_TYPE deadkeycode = deadkey_to_keycode(keycode);
if (deadkeycode) write_key(deadkeycode);
#endif
write_key(keycode);
}
}
void usb_keyboard_press_keycode(uint16_t n)
{
uint8_t key, mod, msb, modrestore=0;
KEYCODE_TYPE keycode;
#ifdef DEADKEYS_MASK
KEYCODE_TYPE deadkeycode;
#endif
msb = n >> 8;
if (msb >= 0xC2 && msb <= 0xDF) {
n = (n & 0x3F) | ((uint16_t)(msb & 0x1F) << 6);
} else
if (msb == 0x80) {
usb_keyboard_press_key(0, n);
return;
} else
if (msb == 0x40) {
usb_keyboard_press_key(n, 0);
return;
}
keycode = unicode_to_keycode(n);
if (!keycode) return;
#ifdef DEADKEYS_MASK
deadkeycode = deadkey_to_keycode(keycode);
if (deadkeycode) {
modrestore = keyboard_modifier_keys;
if (modrestore) {
keyboard_modifier_keys = 0;
usb_keyboard_send();
}
// TODO: test if operating systems recognize
// deadkey sequences when other keys are held
mod = keycode_to_modifier(deadkeycode);
key = keycode_to_key(deadkeycode);
usb_keyboard_press_key(key, mod);
usb_keyboard_release_key(key, mod);
}
#endif
mod = keycode_to_modifier(keycode);
key = keycode_to_key(keycode);
usb_keyboard_press_key(key, mod | modrestore);
}
void usb_keyboard_class::release(uint16_t n)
{
uint8_t key, mod, msb;
msb = n >> 8;
if (msb >= 0xC2 && msb <= 0xDF) {
n = (n & 0x3F) | ((uint16_t)(msb & 0x1F) << 6);
} else
if (msb == 0x80) {
releasekey(0, n);
return;
} else
if (msb == 0x40) {
releasekey(n, 0);
return;
}
KEYCODE_TYPE keycode = unicode_to_keycode(n);
if (!keycode) return;
mod = keycode_to_modifier(keycode);
key = keycode_to_key(keycode);
releasekey(key, mod);
}