GMMK Pro: add RESET binding, fix layout macro bug (#12684)

* add RESET binding, fix layout mod key bug (fixes #12683)

* remove underscore #define and use core's instead

2 files changed, 20 insertions, 3 deletions

diff --git a/keyboards/gmmk/pro/keymaps/default/keymap.c b/keyboards/gmmk/pro/keymaps/default/keymap.c
index 38e9a3566..9e5796ac1 100644
--- a/keyboards/gmmk/pro/keymaps/default/keymap.c
+++ b/keyboards/gmmk/pro/keymaps/default/keymap.c
@@ -26,14 +26,31 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 //      Ct_L     Win_L    Alt_L                               SPACE                               Alt_R    FN       Ct_R     Left     Down     Right
 
 
+    // The FN key by default maps to a momentary toggle to layer 1 to provide access to the RESET key (to put the board into bootloader mode). Without
+    // this mapping, you have to open the case to hit the button on the bottom of the PCB (near the USB cable attachment) while plugging in the USB
+    // cable to get the board into bootloader mode - definitely not fun when you're working on your QMK builds. Remove this and put it back to KC_RGUI
+    // if that's your preference.
+    //
+    // To put the keyboard in bootloader mode, use FN+backslash. If you accidentally put it into bootloader, you can just unplug the USB cable and
+    // it'll be back to normal when you plug it back in.
     [0] = LAYOUT(
         KC_ESC,  KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,  KC_PSCR,          KC_MUTE,
         KC_GRV,  KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    KC_MINS, KC_EQL,  KC_BSPC,          KC_DEL,
         KC_TAB,  KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    KC_LBRC, KC_RBRC, KC_BSLS,          KC_PGUP,
         KC_CAPS, KC_A,    KC_S,    KC_D,    KC_F,    KC_G,    KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN, KC_QUOT,          KC_ENT,           KC_PGDN,
         KC_LSFT,          KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH,          KC_RSFT, KC_UP,   KC_END,
-        KC_LCTL, KC_LGUI, KC_LALT,                            KC_SPC,                             KC_RALT, KC_RGUI, KC_RCTL, KC_LEFT, KC_DOWN, KC_RGHT
-    )
+        KC_LCTL, KC_LGUI, KC_LALT,                            KC_SPC,                             KC_RALT, MO(1),   KC_RCTL, KC_LEFT, KC_DOWN, KC_RGHT
+    ),
+
+    [1] = LAYOUT(
+        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______,
+        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______,
+        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, RESET,            _______,
+        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______,          _______,
+        _______,          _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______, _______, _______,
+        _______, _______, _______,                            _______,                            _______, _______, _______, _______, _______, _______
+    ),
+
 
 };
 
diff --git a/keyboards/gmmk/pro/pro.h b/keyboards/gmmk/pro/pro.h
index cea259065..ddce60241 100644
--- a/keyboards/gmmk/pro/pro.h
+++ b/keyboards/gmmk/pro/pro.h
@@ -33,7 +33,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
     k11, k10, k20, k30, k40, k41, k51, k50, k60, k70, k80, k81, k61, ka2,     k15, \
     k21, k12, k22, k32, k42, k43, k53, k52, k62, k72, k82, k83,     ka4,      k25, \
     k00, k14, k24, k34, k44, k45, k55, k54, k64, k74, k85,    k91,       k35, k75, \
-    k06,    k90,    k93,       k94,          k92,     k95, k04,     k03, k73, k05  \
+    k06,    k90,    k93,       k94,          k95,     k92, k04,     k03, k73, k05  \
 ) \
 { \
     { k00, k01, ___, k03, k04, k05, k06, k07}, \