1 files changed, 80 insertions, 0 deletions
diff --git a/quantum/process_keycode/process_unicode.c b/quantum/process_keycode/process_unicode.c
index 26571ea034..cecfaeee9b 100644
--- a/quantum/process_keycode/process_unicode.c
+++ b/quantum/process_keycode/process_unicode.c
@@ -16,8 +16,88 @@
 #include "process_unicode.h"
 #include "action_util.h"
 
+static uint8_t input_mode;
+static uint8_t first_flag = 0;
+
+__attribute__((weak))
+uint16_t hex_to_keycode(uint8_t hex)
+{
+  if (hex == 0x0) {
+    return KC_0;
+  } else if (hex < 0xA) {
+    return KC_1 + (hex - 0x1);
+  } else {
+    return KC_A + (hex - 0xA);
+  }
+}
+
+void set_unicode_input_mode(uint8_t os_target)
+{
+  input_mode = os_target;
+  eeprom_update_byte(EECONFIG_UNICODEMODE, os_target);
+}
+
+uint8_t get_unicode_input_mode(void) {
+  return input_mode;
+}
+
+__attribute__((weak))
+void unicode_input_start (void) {
+  switch(input_mode) {
+  case UC_OSX:
+    register_code(KC_LALT);
+    break;
+  case UC_LNX:
+    register_code(KC_LCTL);
+    register_code(KC_LSFT);
+    register_code(KC_U);
+    unregister_code(KC_U);
+    unregister_code(KC_LSFT);
+    unregister_code(KC_LCTL);
+    break;
+  case UC_WIN:
+    register_code(KC_LALT);
+    register_code(KC_PPLS);
+    unregister_code(KC_PPLS);
+    break;
+  case UC_WINC:
+    register_code(KC_RALT);
+    unregister_code(KC_RALT);
+    register_code(KC_U);
+    unregister_code(KC_U);
+  }
+  wait_ms(UNICODE_TYPE_DELAY);
+}
+
+__attribute__((weak))
+void unicode_input_finish (void) {
+  switch(input_mode) {
+  case UC_OSX:
+  case UC_WIN:
+    unregister_code(KC_LALT);
+    break;
+  case UC_LNX:
+    register_code(KC_SPC);
+    unregister_code(KC_SPC);
+    break;
+  }
+}
+
+void register_hex(uint16_t hex) {
+  for(int i = 3; i >= 0; i--) {
+    uint8_t digit = ((hex >> (i*4)) & 0xF);
+    register_code(hex_to_keycode(digit));
+    unregister_code(hex_to_keycode(digit));
+  }
+}
+
+
 bool process_unicode(uint16_t keycode, keyrecord_t *record) {
   if (keycode > QK_UNICODE && record->event.pressed) {
+    if (first_flag == 0) {
+      set_unicode_input_mode(eeprom_read_byte(EECONFIG_UNICODEMODE));
+      first_flag = 1;
+    }
     uint16_t unicode = keycode & 0x7FFF;
     unicode_input_start();
     register_hex(unicode);