core: Add unimap support

tmk_core/common/unimap.c

@@ -0,0 +1,57 @@
+#include "keyboard.h"
+#include "action.h"
+#include "unimap.h"
+#include "print.h"
+#if defined(__AVR__)
+#   include <avr/pgmspace.h>
+#endif
+
+
+/* Keymapping with 16bit action codes */
+extern const action_t actionmaps[][UNIMAP_ROWS][UNIMAP_COLS];
+
+// table translates matrix to universal keymap
+extern const uint8_t unimap_trans[MATRIX_ROWS][MATRIX_COLS];
+
+
+
+// translates raw matrix to universal map
+keypos_t unimap_translate(keypos_t key)
+{
+    uint8_t unimap_pos = 
+#if defined(__AVR__)
+        pgm_read_byte(&unimap_trans[key.row][key.col]);
+#else
+        unimap_trans[key.row][key.col];
+#endif
+    return (keypos_t) {
+        .row = ((unimap_pos & 0x70) >> 4),
+        .col = (unimap_pos & 0x0F)
+    };
+}
+
+/* Converts key to action */
+__attribute__ ((weak))
+action_t action_for_key(uint8_t layer, keypos_t key)
+{
+    keypos_t uni = unimap_translate(key);
+    if ((uni.row << 4 | uni.col) == UNIMAP_NO) return (action_t)ACTION_NO;
+#if defined(__AVR__)
+    return (action_t)pgm_read_word(&actionmaps[(layer)][(uni.row)][(uni.col)]);
+#else
+    return actionmaps[(layer)][(uni.row)][(uni.col)];
+#endif
+}
+
+/* Macro */
+__attribute__ ((weak))
+const macro_t *action_get_macro(keyrecord_t *record, uint8_t id, uint8_t opt)
+{
+    return MACRO_NONE;
+}
+
+/* Function */
+__attribute__ ((weak))
+void action_function(keyrecord_t *record, uint8_t id, uint8_t opt)
+{
+}