2 files changed, 79 insertions, 0 deletions
diff --git a/keyboards/gh60/keymaps/sethbc/Makefile b/keyboards/gh60/keymaps/sethbc/Makefile
new file mode 100644
index 0000000000..457a3d01d4
--- /dev/null
+++ b/keyboards/gh60/keymaps/sethbc/Makefile
@@ -0,0 +1,3 @@
+ifndef QUANTUM_DIR
+	include ../../../../Makefile
+endif
diff --git a/keyboards/gh60/keymaps/sethbc/keymap.c b/keyboards/gh60/keymaps/sethbc/keymap.c
new file mode 100644
index 0000000000..85a46a29bd
--- /dev/null
+++ b/keyboards/gh60/keymaps/sethbc/keymap.c
@@ -0,0 +1,76 @@
+#include "gh60.h"
+#include "action_layer.h"
+
+#define MODS_CTRL_MASK  (MOD_BIT(KC_LSHIFT)|MOD_BIT(KC_RSHIFT))
+
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+    /* 0: qwerty */
+  KEYMAP_HHKB(
+	      FN0, 1,   2,   3,   4,   5,   6,   7,   8,   9,   0,   MINS,EQL, BSLS, GRV,  \
+        TAB, Q,   W,   E,   R,   T,   Y,   U,   I,   O,   P,   LBRC,RBRC,BSPC, \
+        LCTL,A,   S,   D,   F,   G,   H,   J,   K,   L,   SCLN,QUOT,ENT,  \
+        LSFT, Z,   X,   C,   V,   B,   N,   M,   COMM,DOT, SLSH,RSFT, FN1, \
+        LCTL,LALT,LGUI,          SPC,                RGUI,RALT,APP, RCTL),
+    /* 1: fn */
+	KEYMAP_HHKB(
+        GRV, F1,  F2,  F3,  F4,  F5,  F6,  F7,  F8,  F9,  F10, F11, F12, TRNS, TRNS, \
+        CAPS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,UP,TRNS,TRNS, \
+        TRNS,VOLD,VOLU,MUTE,TRNS,TRNS,PAST,PSLS,HOME,PGUP,LEFT,RIGHT,PENT, \
+        TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,PPLS,PMNS,END,PGDN,DOWN,TRNS,TRNS, \
+        TRNS,TRNS,TRNS,          TRNS,               TRNS,TRNS,TRNS,TRNS),
+};
+
+enum function_id {
+    SHIFT_ESC,
+};
+
+const uint16_t PROGMEM fn_actions[] = {
+    [0] = ACTION_FUNCTION(SHIFT_ESC),
+    [1] = ACTION_LAYER_MOMENTARY(1),  // to Fn overlay
+};
+
+const macro_t *action_get_macro(keyrecord_t *record, uint8_t id, uint8_t opt)
+{
+  // MACRODOWN only works in this function
+      switch(id) {
+        case 0:
+          if (record->event.pressed) {
+            register_code(KC_RSFT);
+          } else {
+            unregister_code(KC_RSFT);
+          }
+        break;
+      }
+    return MACRO_NONE;
+};
+
+void matrix_scan_user(void) {
+
+}
+
+void action_function(keyrecord_t *record, uint8_t id, uint8_t opt) {
+  static uint8_t shift_esc_shift_mask;
+  switch (id) {
+    case SHIFT_ESC:
+      shift_esc_shift_mask = get_mods()&MODS_CTRL_MASK;
+      if (record->event.pressed) {
+        if (shift_esc_shift_mask) {
+          add_key(KC_GRV);
+          send_keyboard_report();
+        } else {
+          add_key(KC_ESC);
+          send_keyboard_report();
+        }
+      } else {
+        if (shift_esc_shift_mask) {
+          del_key(KC_GRV);
+          send_keyboard_report();
+        } else {
+          del_key(KC_ESC);
+          send_keyboard_report();
+        }
+      }
+      break;
+  }
+}