ARM split - Add bootmagic/magic keycodes for setting handedness (#6545)

* Add docs on bootmagic/magic keycodes for setting handedness

* Clang format fixes

* Maintain backwards compatibility

* Maintain backwards compatibility

docs/feature_bootmagic.md

@@ -34,6 +34,8 @@ Hold down the Bootmagic key (Space by default) and the desired hotkey while plug
 |`X`               |Toggle key matrix debugging                  |
 |`K`               |Toggle keyboard debugging                    |
 |`M`               |Toggle mouse debugging                       |
+|`L`               |Set "Left Hand" for EE_HANDS handedness      |
+|`R`               |Set "Right Hand" for EE_HANDS handedness     |
 |Backspace         |Clear the EEPROM                             |
 |Caps Lock         |Toggle treating Caps Lock as Left Control    |
 |Left Control      |Toggle swapping Caps Lock and Left Control   |
@@ -83,6 +85,8 @@ Hold down the Bootmagic key (Space by default) and the desired hotkey while plug
 |`MAGIC_UNSWAP_LCTL_LGUI`          |         |Unswap Left Control and Left GUI          |
 |`MAGIC_SWAP_RCTL_RGUI`            |         |Swap Right Control and Right GUI          |
 |`MAGIC_UNSWAP_RCTL_RGUI`          |         |Unswap Right Control and Right GUI        |
+|`MAGIC_EE_HANDS_LEFT`             |         |Set "Left Hand" for EE_HANDS handedness   |
+|`MAGIC_EE_HANDS_RIGHT`            |         |Set "Right Hand" for EE_HANDS handedness  |
 
 ## Configuration
 
@@ -98,6 +102,8 @@ If you would like to change the hotkey assignments for Bootmagic, `#define` thes
 |`BOOTMAGIC_KEY_DEBUG_MATRIX`            |`KC_X`       |Toggle matrix debugging                            |
 |`BOOTMAGIC_KEY_DEBUG_KEYBOARD`          |`KC_K`       |Toggle keyboard debugging                          |
 |`BOOTMAGIC_KEY_DEBUG_MOUSE`             |`KC_M`       |Toggle mouse debugging                             |
+|`BOOTMAGIC_KEY_EE_HANDS_LEFT`           |`KC_L`       |Set "Left Hand" for EE_HANDS handedness            |
+|`BOOTMAGIC_KEY_EE_HANDS_RIGHT`          |`KC_R`       |Set "Right Hand" for EE_HANDS handedness           |
 |`BOOTMAGIC_KEY_SWAP_CONTROL_CAPSLOCK`   |`KC_LCTRL`   |Swap Left Control and Caps Lock                    |
 |`BOOTMAGIC_KEY_CAPSLOCK_TO_CONTROL`     |`KC_CAPSLOCK`|Toggle treating Caps Lock as Left Control          |
 |`BOOTMAGIC_KEY_SWAP_LALT_LGUI`          |`KC_LALT`    |Toggle swapping Left Alt and Left GUI (for macOS)  |

docs/keycodes.md

@@ -258,7 +258,7 @@ This is a reference only. Each group of keys links to the page documenting their
 ## [Bootmagic](feature_bootmagic.md)
 
 |Key                               |Aliases  |Description                                |
-|----------------------------------|---------|------------------------------------|
+|----------------------------------|---------|-------------------------------------------|
 |`MAGIC_SWAP_CONTROL_CAPSLOCK`     |         |Swap Caps Lock and Left Control            |
 |`MAGIC_CAPSLOCK_TO_CONTROL`       |         |Treat Caps Lock as Control                 |
 |`MAGIC_SWAP_LCTL_LGUI`            |         |Swap Left Control and GUI                  |
@@ -286,6 +286,8 @@ This is a reference only. Each group of keys links to the page documenting their
 |`MAGIC_TOGGLE_ALT_GUI`            |`AG_TOGG`|Toggle Alt and GUI swap on both sides      |
 |`MAGIC_TOGGLE_CTL_GUI`            |`CG_TOGG`|Toggle Ctrl and GUI swap on both sides     |
 |`MAGIC_TOGGLE_NKRO`               |         |Turn NKRO on or off                        |
+|`MAGIC_EE_HANDS_LEFT`             |         |Set "Left Hand" for EE_HANDS handedness    |
+|`MAGIC_EE_HANDS_RIGHT`            |         |Set "Right Hand" for EE_HANDS handedness   |
 
 ## [Bluetooth](feature_bluetooth.md)
 

quantum/quantum.c

@@ -544,7 +544,7 @@ bool process_record_quantum(keyrecord_t *record) {
 #    endif
 #endif
         case MAGIC_SWAP_CONTROL_CAPSLOCK ... MAGIC_TOGGLE_ALT_GUI:
-        case MAGIC_SWAP_LCTL_LGUI ... MAGIC_TOGGLE_CTL_GUI:
+        case MAGIC_SWAP_LCTL_LGUI ... MAGIC_EE_HANDS_RIGHT:
             if (record->event.pressed) {
                 // MAGIC actions (BOOTMAGIC without the boot)
                 if (!eeconfig_is_enabled()) {
@@ -662,6 +662,12 @@ bool process_record_quantum(keyrecord_t *record) {
                     case MAGIC_TOGGLE_NKRO:
                         keymap_config.nkro = !keymap_config.nkro;
                         break;
+                    case MAGIC_EE_HANDS_LEFT:
+                        eeconfig_update_handedness(true);
+                        break;
+                    case MAGIC_EE_HANDS_RIGHT:
+                        eeconfig_update_handedness(false);
+                        break;
                     default:
                         break;
                 }

quantum/quantum_keycodes.h

@@ -502,6 +502,8 @@ enum quantum_keycodes {
     MAGIC_SWAP_CTL_GUI,
     MAGIC_UNSWAP_CTL_GUI,
     MAGIC_TOGGLE_CTL_GUI,
+    MAGIC_EE_HANDS_LEFT,
+    MAGIC_EE_HANDS_RIGHT,
 
     // always leave at the end
     SAFE_RANGE

quantum/split_common/split_util.c

@@ -7,7 +7,6 @@
 #include "quantum.h"
 
 #ifdef EE_HANDS
-#    include "tmk_core/common/eeprom.h"
 #    include "eeconfig.h"
 #endif
 
@@ -23,7 +22,7 @@ __attribute__((weak)) bool is_keyboard_left(void) {
     setPinInput(SPLIT_HAND_PIN);
     return readPin(SPLIT_HAND_PIN);
 #elif defined(EE_HANDS)
-    return eeprom_read_byte(EECONFIG_HANDEDNESS);
+    return eeconfig_read_handedness();
 #elif defined(MASTER_RIGHT)
     return !is_keyboard_master();
 #endif

tmk_core/common/bootmagic.c

@@ -122,6 +122,14 @@ void bootmagic(void) {
         default_layer = eeconfig_read_default_layer();
         default_layer_set((layer_state_t)default_layer);
     }
+
+    /* EE_HANDS handedness */
+    if (bootmagic_scan_keycode(BOOTMAGIC_KEY_EE_HANDS_LEFT)) {
+        eeconfig_update_handedness(true);
+    }
+    if (bootmagic_scan_keycode(BOOTMAGIC_KEY_EE_HANDS_RIGHT)) {
+        eeconfig_update_handedness(false);
+    }
 }
 
 /** \brief Scan Keycode

tmk_core/common/bootmagic.h

@@ -36,6 +36,12 @@
 #ifndef BOOTMAGIC_KEY_DEBUG_MOUSE
 #    define BOOTMAGIC_KEY_DEBUG_MOUSE KC_M
 #endif
+#ifndef BOOTMAGIC_KEY_EE_HANDS_LEFT
+#    define BOOTMAGIC_KEY_EE_HANDS_LEFT KC_L
+#endif
+#ifndef BOOTMAGIC_KEY_EE_HANDS_RIGHT
+#    define BOOTMAGIC_KEY_EE_HANDS_RIGHT KC_R
+#endif
 
 /*
  * keymap config

tmk_core/common/eeconfig.c

@@ -153,8 +153,8 @@ uint32_t eeconfig_read_kb(void) { return eeprom_read_dword(EECONFIG_KEYBOARD); }
  *
  * FIXME: needs doc
  */
-
 void eeconfig_update_kb(uint32_t val) { eeprom_update_dword(EECONFIG_KEYBOARD, val); }
+
 /** \brief eeconfig read user
  *
  * FIXME: needs doc
@@ -166,9 +166,24 @@ uint32_t eeconfig_read_user(void) { return eeprom_read_dword(EECONFIG_USER); }
  */
 void eeconfig_update_user(uint32_t val) { eeprom_update_dword(EECONFIG_USER, val); }
 
+/** \brief eeconfig read haptic
+ *
+ * FIXME: needs doc
+ */
 uint32_t eeconfig_read_haptic(void) { return eeprom_read_dword(EECONFIG_HAPTIC); }
-/** \brief eeconfig update user
+/** \brief eeconfig update haptic
  *
  * FIXME: needs doc
  */
 void eeconfig_update_haptic(uint32_t val) { eeprom_update_dword(EECONFIG_HAPTIC, val); }
+
+/** \brief eeconfig read split handedness
+ *
+ * FIXME: needs doc
+ */
+bool eeconfig_read_handedness(void) { return !!eeprom_read_byte(EECONFIG_HANDEDNESS); }
+/** \brief eeconfig update split handedness
+ *
+ * FIXME: needs doc
+ */
+void eeconfig_update_handedness(bool val) { eeprom_update_byte(EECONFIG_HANDEDNESS, !!val); }

tmk_core/common/eeconfig.h

@@ -107,4 +107,7 @@ uint32_t eeconfig_read_haptic(void);
 void     eeconfig_update_haptic(uint32_t val);
 #endif
 
+bool eeconfig_read_handedness(void);
+void eeconfig_update_handedness(bool val);
+
 #endif