Merge pull request #815 from priyadi/unicode_map

Allow unicode up to 0xFFFFF using separate mapping table

4 files changed, 40 insertions, 0 deletions

diff --git a/quantum/keymap.h b/quantum/keymap.h
index 85c090972d..a01bbfbd14 100644
--- a/quantum/keymap.h
+++ b/quantum/keymap.h
@@ -84,6 +84,10 @@ enum quantum_keycodes {
     QK_MOD_TAP_MAX        = 0x6FFF,
     QK_TAP_DANCE          = 0x7100,
     QK_TAP_DANCE_MAX      = 0x71FF,
+#ifdef UNICODEMAP_ENABLE
+    QK_UNICODE_MAP        = 0x7800,
+    QK_UNICODE_MAP_MAX    = 0x7FFF,
+#endif
 #ifdef UNICODE_ENABLE
     QK_UNICODE            = 0x8000,
     QK_UNICODE_MAX        = 0xFFFF,
@@ -339,5 +343,8 @@ enum quantum_keycodes {
     #define UC(n) UNICODE(n)
 #endif
 
+#ifdef UNICODEMAP_ENABLE
+    #define X(n) (n | QK_UNICODE_MAP)
+#endif
 
 #endif
diff --git a/quantum/process_keycode/process_unicode.c b/quantum/process_keycode/process_unicode.c
index 6a30afe293..37dd471ffd 100644
--- a/quantum/process_keycode/process_unicode.c
+++ b/quantum/process_keycode/process_unicode.c
@@ -78,6 +78,32 @@ bool process_unicode(uint16_t keycode, keyrecord_t *record) {
   return true;
 }
 
+#ifdef UNICODEMAP_ENABLE
+__attribute__((weak))
+const uint32_t PROGMEM unicode_map[] = {
+};
+
+// 5 digit max because of linux limitation
+void register_hex32(uint32_t hex) {
+  for(int i = 4; 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_map(uint16_t keycode, keyrecord_t *record) {
+  if ((keycode & QK_UNICODE_MAP) == QK_UNICODE_MAP && record->event.pressed) {
+    const uint32_t* map = unicode_map;
+    uint16_t index = keycode & 0x7FF;
+    unicode_input_start();
+    register_hex32(pgm_read_dword_far(&map[index]));
+    unicode_input_finish();
+  }
+  return true;
+}
+#endif
+
 #ifdef UCIS_ENABLE
 qk_ucis_state_t qk_ucis_state;
 
diff --git a/quantum/process_keycode/process_unicode.h b/quantum/process_keycode/process_unicode.h
index 27f8072ee6..a6c7e45845 100644
--- a/quantum/process_keycode/process_unicode.h
+++ b/quantum/process_keycode/process_unicode.h
@@ -20,6 +20,10 @@ void register_hex(uint16_t hex);
 
 bool process_unicode(uint16_t keycode, keyrecord_t *record);
 
+#ifdef UNICODEMAP_ENABLE
+bool process_unicode_map(uint16_t keycode, keyrecord_t *record);
+#endif
+
 #ifdef UCIS_ENABLE
 #ifndef UCIS_MAX_SYMBOL_LENGTH
 #define UCIS_MAX_SYMBOL_LENGTH 32
diff --git a/quantum/quantum.c b/quantum/quantum.c
index a16bd5443c..098312e6ef 100644
--- a/quantum/quantum.c
+++ b/quantum/quantum.c
@@ -129,6 +129,9 @@ bool process_record_quantum(keyrecord_t *record) {
   #ifdef UCIS_ENABLE
     process_ucis(keycode, record) &&
   #endif
+  #ifdef UNICODEMAP_ENABLE
+    process_unicode_map(keycode, record) &&
+  #endif
       true)) {
     return false;
   }