Align TO() max layers with other keycodes (#17989)

quantum/action_code.h

@@ -234,6 +234,7 @@ enum layer_param_tap_op {
 #define ACTION_LAYER_INVERT(layer, on) ACTION_LAYER_BIT_XOR((layer) / 4, 1 << ((layer) % 4), (on))
 #define ACTION_LAYER_ON(layer, on) ACTION_LAYER_BIT_OR((layer) / 4, 1 << ((layer) % 4), (on))
 #define ACTION_LAYER_OFF(layer, on) ACTION_LAYER_BIT_AND((layer) / 4, ~(1 << ((layer) % 4)), (on))
+#define ACTION_LAYER_GOTO(layer) ACTION_LAYER_SET(layer, ON_PRESS)
 #define ACTION_LAYER_SET(layer, on) ACTION_LAYER_BIT_SET((layer) / 4, 1 << ((layer) % 4), (on))
 #define ACTION_LAYER_ON_OFF(layer) ACTION_LAYER_TAP((layer), OP_ON_OFF)
 #define ACTION_LAYER_OFF_ON(layer) ACTION_LAYER_TAP((layer), OP_OFF_ON)

quantum/keymap_common.c

@@ -47,10 +47,9 @@ action_t action_for_keycode(uint16_t keycode) {
     keycode = keycode_config(keycode);
 
     action_t action = {};
-    uint8_t  action_layer, when, mod;
+    uint8_t  action_layer, mod;
 
     (void)action_layer;
-    (void)when;
     (void)mod;
 
     switch (keycode) {
@@ -85,9 +84,8 @@ action_t action_for_keycode(uint16_t keycode) {
             break;
         case QK_TO ... QK_TO_MAX:;
             // Layer set "GOTO"
-            when         = (keycode >> 0x4) & 0x3;
-            action_layer = keycode & 0xF;
-            action.code  = ACTION_LAYER_SET(action_layer, when);
+            action_layer = keycode & 0xFF;
+            action.code  = ACTION_LAYER_GOTO(action_layer);
             break;
         case QK_MOMENTARY ... QK_MOMENTARY_MAX:;
             // Momentary action_layer

quantum/quantum_keycodes.h

@@ -797,15 +797,8 @@ enum quantum_keycodes {
 #define EH_LEFT MAGIC_EE_HANDS_LEFT
 #define EH_RGHT MAGIC_EE_HANDS_RIGHT
 
-// GOTO layer - 16 layers max
-// when:
-// ON_PRESS    = 1
-// ON_RELEASE  = 2
-// Unless you have a good reason not to do so, prefer  ON_PRESS (1) as your default.
-// In fact, we changed it to assume ON_PRESS for sanity/simplicity. If needed, you can add your own
-// keycode modeled after the old version, kept below for this.
-/* #define TO(layer, when) (QK_TO | (when << 0x4) | (layer & 0xFF)) */
-#define TO(layer) (QK_TO | (ON_PRESS << 0x4) | ((layer)&0xFF))
+// GOTO layer - 256 layer max
+#define TO(layer) (QK_TO | ((layer)&0xFF))
 
 // Momentary switch layer - 256 layer max
 #define MO(layer) (QK_MOMENTARY | ((layer)&0xFF))