feat: add support for new halcyon encoder revision

Author: veypatch

qmk.json

@@ -17,6 +17,14 @@
                 "TARGET": "splitkb_halcyon_kyria_rev4_vial_hlc_encoder"
             }
         ],
+        [
+            "splitkb/halcyon/kyria/rev4",
+            "vial_hlc",
+            {
+                "HLC_ENCODER_REV2": "1",
+                "TARGET": "splitkb_halcyon_kyria_rev4_vial_hlc_encoder_rev2"
+            }
+        ],
         [
             "splitkb/halcyon/kyria/rev4",
             "vial_hlc",
@@ -49,6 +57,14 @@
                 "TARGET": "splitkb_halcyon_elora_rev2_vial_hlc_encoder"
             }
         ],
+        [
+            "splitkb/halcyon/elora/rev2",
+            "vial_hlc",
+            {
+                "HLC_ENCODER_REV2": "1",
+                "TARGET": "splitkb_halcyon_elora_rev2_vial_hlc_encoder_rev2"
+            }
+        ],
         [
             "splitkb/halcyon/elora/rev2",
             "vial_hlc",
@@ -81,6 +97,14 @@
                 "TARGET": "splitkb_halcyon_corne_rev2_vial_hlc_encoder"
             }
         ],
+        [
+            "splitkb/halcyon/corne/rev2",
+            "vial_hlc",
+            {
+                "HLC_ENCODER_REV2": "1",
+                "TARGET": "splitkb_halcyon_corne_rev2_vial_hlc_encoder_rev2"
+            }
+        ],
         [
             "splitkb/halcyon/corne/rev2",
             "vial_hlc",
@@ -113,6 +137,14 @@
                 "TARGET": "splitkb_halcyon_lily58_rev2_vial_hlc_encoder"
             }
         ],
+        [
+            "splitkb/halcyon/lily58/rev2",
+            "vial_hlc",
+            {
+                "HLC_ENCODER_REV2": "1",
+                "TARGET": "splitkb_halcyon_lily58_rev2_vial_hlc_encoder_rev2"
+            }
+        ],
         [
             "splitkb/halcyon/lily58/rev2",
             "vial_hlc",
@@ -145,6 +177,14 @@
                 "TARGET": "splitkb_halcyon_ferris_rev1_vial_hlc_encoder"
             }
         ],
+        [
+            "splitkb/halcyon/ferris/rev1",
+            "vial_hlc",
+            {
+                "HLC_ENCODER_REV2": "1",
+                "TARGET": "splitkb_halcyon_ferris_rev1_vial_hlc_encoder_rev2"
+            }
+        ],
         [
             "splitkb/halcyon/ferris/rev1",
             "vial_hlc",

users/halcyon_modules/splitkb/hlc_encoder/config_rev2.h

@@ -0,0 +1,7 @@
+// Copyright 2026 splitkb.com (support@splitkb.com)
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#undef ENCODER_RESOLUTION
+#define ENCODER_RESOLUTIONS { 2, 4 }

users/halcyon_modules/splitkb/hlc_encoder/rules.mk

@@ -1,2 +1,6 @@
 SRC += $(USER_PATH)/splitkb/hlc_encoder/hlc_encoder.c
 POST_CONFIG_H += $(USER_PATH)/splitkb/hlc_encoder/config.h
+
+ifdef HLC_ENCODER_REV2
+	POST_CONFIG_H += $(USER_PATH)/splitkb/hlc_encoder/config_rev2.h
+endif

users/halcyon_modules/splitkb/rules.mk

@@ -14,7 +14,7 @@ SRC += $(USER_PATH)/splitkb/halcyon.c
 HALCONFDIR += $(USER_PATH)/splitkb/halconf.h
 POST_CONFIG_H += $(USER_PATH)/splitkb/config.h
 
-ifdef HLC_ENCODER
+ifeq ($(filter 1, $(HLC_ENCODER) $(HLC_ENCODER_REV2)), 1)
   include $(USER_PATH)/splitkb/hlc_encoder/rules.mk
 endif
 
@@ -26,7 +26,7 @@ ifdef HLC_CIRQUE_TRACKPAD
   include $(USER_PATH)/splitkb/hlc_cirque_trackpad/rules.mk
 endif
 
-HLC_OPTIONS := $(HLC_NONE) $(HLC_CIRQUE_TRACKPAD) $(HLC_ENCODER) $(HLC_TFT_DISPLAY)
+HLC_OPTIONS := $(HLC_NONE) $(HLC_CIRQUE_TRACKPAD) $(HLC_ENCODER) $(HLC_TFT_DISPLAY) $(HLC_ENCODER_REV2)
 
 ifeq ($(filter 1, $(HLC_OPTIONS)), )
 $(error Halcyon_modules used but wrong or no module specified. Please specify one by adding `-e <module_name>=1` to your compile command where <module_name> can be: HLC_NONE, HLC_CIRQUE_TRACKPAD, HLC_ENCODER or HLC_TFT_DISPLAY)