nkro enable function

firmware/keyboard/ergodox/layout/common/keys.c.h

@@ -216,6 +216,13 @@ void R(btldr) (void) {}
 void P(MclkL) (void) { KF(mouse_buttons)(1, 0, 0); }
 void R(MclkL) (void) { KF(mouse_buttons)(0, 0, 0); }
 
+/**
+ * nkro toggle
+ */
+
+void P(tnkro) (void) { KF(toggle_nkro)(); }
+void R(tnkro) (void) {}
+
 // ----------------------------------------------------------------------------
 // --- layer ------------------------------------------------------------------
 

firmware/keyboard/ergodox/layout/repa.c

@@ -84,7 +84,7 @@ shL2kcap,  semicol,        q,        j,        k,        x, lpupo1l1,
              btldr,        6,        7,        8,        9,        0,     dash,
              MclkL,        f,        g,        c,        r,        l,    brktR,
                            d,        h,        t,        n,        s,    slash,
-          lpupo1l1,        b,        m,        w,        v,        z, shR2kcap,
+             tnkro,        b,        m,        w,        v,        z, shR2kcap,
                                 arrowL,   arrowD,   arrowU,   arrowR,     guiR,
     altR,    ctrlR,
    pageU,      nop,      nop,

firmware/lib/layout/key-functions.h

@@ -33,6 +33,9 @@ void key_functions__toggle_capslock (void);
 void key_functions__type_byte_hex   (uint8_t byte);
 void key_functions__type_string     (const char * string);
 
+// nkro
+void key_functions__toggle_nkro (void);
+
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 #endif  // ERGODOX_FIRMWARE__FIRMWARE__LIB__LAYOUT__KEY_FUNCTIONS__H

firmware/lib/layout/key-functions/special.c

@@ -43,6 +43,12 @@ void key_functions__toggle_capslock(void) {
     usb__kb__send_report();
 }
 
+// nkro toggle
+
+void key_functions__toggle_nkro(void) {
+  usb__kb__toggle_nkro();
+}
+
 /*
  * TODO: try using number pad numbers; see how it works
  */

firmware/lib/layout/mouse/mouse.c

@@ -17,12 +17,6 @@ void key_functions__mouse_buttons(uint8_t left, uint8_t middle, uint8_t right)
 	if (middle) mask |= 4;
 	if (right) mask |= 2;
 
-  if (mask > 0) {
-    kb__led__on(6);
-  } else {
-    kb__led__off(6);
-  }
-
 	usb__m__buttons(mask);
 }
 

firmware/lib/usb.h

@@ -34,6 +34,8 @@ bool    usb__kb__read_key    (uint8_t keycode);
 bool    usb__kb__read_led    (char led);
 uint8_t usb__kb__send_report (void);
 
+void    usb__kb__toggle_nkro (void);
+
 // --- mouse ---
 #define MOUSE_BTN1 (1<<0)
 #define MOUSE_BTN2 (1<<1)

firmware/lib/usb/atmega32u4/keyboard.c

@@ -11,6 +11,7 @@
 #include <stdbool.h>
 #include <stdint.h>
 #include "../usage-page/keyboard.h"
+#include "../../../../firmware/keyboard.h"
 #include "./keyboard/from-pjrc/usb.h"
 #include "../../usb.h"
 
@@ -115,3 +116,12 @@ uint8_t usb__kb__send_report(void) {
     return usb_keyboard_send();
 }
 
+void usb__kb__toggle_nkro(void) {
+    if (keyboard_nkro_enabled == 0) {
+        keyboard_nkro_enabled = 1;
+        kb__led__on(6);
+    } else {
+        keyboard_nkro_enabled = 0;
+        kb__led__off(6);
+    }
+}