From 9fe7b5307a1b520f844fd389b0cc5b67e30aa412 Mon Sep 17 00:00:00 2001
From: Takeshi ISHII <2170248+mtei@users.noreply.github.com>
Date: Sun, 29 Aug 2021 08:42:57 +0900
Subject: [PATCH] add 'include keyboard_features.mk' into build_keyboard.mk
(#8422)
* add 'include keyboard_features.mk' into build_keyboard.mk
keyboard_features.mk is a keyboard-local version of the functions performed by common_features.mk.
* add comment into build_keyboard.mk
* added description of keyboard_features.mk in hardware_keyboard_guidelines.md.
* rename `keyboard_features.mk` to `post_rules.mk`
---
build_keyboard.mk | 19 +++++++++++++++++++
docs/hardware_keyboard_guidelines.md | 28 ++++++++++++++++++++++++++++
2 files changed, 47 insertions(+)
diff --git a/build_keyboard.mk b/build_keyboard.mk
index 37fa6852f8..420643c3e7 100644
--- a/build_keyboard.mk
+++ b/build_keyboard.mk
@@ -115,6 +115,7 @@ include $(INFO_RULES_MK)
# Check for keymap.json first, so we can regenerate keymap.c
include build_json.mk
+# Pull in keymap level rules.mk
ifeq ("$(wildcard $(KEYMAP_PATH))", "")
# Look through the possible keymap folders until we find a matching keymap.c
ifneq ("$(wildcard $(MAIN_KEYMAP_PATH_5)/keymap.c)","")
@@ -345,6 +346,7 @@ ifeq ("$(USER_NAME)","")
endif
USER_PATH := users/$(USER_NAME)
+# Pull in user level rules.mk
-include $(USER_PATH)/rules.mk
ifneq ("$(wildcard $(USER_PATH)/config.h)","")
CONFIG_H += $(USER_PATH)/config.h
@@ -356,6 +358,23 @@ endif
# Disable features that a keyboard doesn't support
-include disable_features.mk
+# Pull in post_rules.mk files from all our subfolders
+ifneq ("$(wildcard $(KEYBOARD_PATH_1)/post_rules.mk)","")
+ include $(KEYBOARD_PATH_1)/post_rules.mk
+endif
+ifneq ("$(wildcard $(KEYBOARD_PATH_2)/post_rules.mk)","")
+ include $(KEYBOARD_PATH_2)/post_rules.mk
+endif
+ifneq ("$(wildcard $(KEYBOARD_PATH_3)/post_rules.mk)","")
+ include $(KEYBOARD_PATH_3)/post_rules.mk
+endif
+ifneq ("$(wildcard $(KEYBOARD_PATH_4)/post_rules.mk)","")
+ include $(KEYBOARD_PATH_4)/post_rules.mk
+endif
+ifneq ("$(wildcard $(KEYBOARD_PATH_5)/post_rules.mk)","")
+ include $(KEYBOARD_PATH_5)/post_rules.mk
+endif
+
ifneq ("$(wildcard $(KEYMAP_PATH)/config.h)","")
CONFIG_H += $(KEYMAP_PATH)/config.h
endif
diff --git a/docs/hardware_keyboard_guidelines.md b/docs/hardware_keyboard_guidelines.md
index 7630b44e0c..17be7ee6aa 100644
--- a/docs/hardware_keyboard_guidelines.md
+++ b/docs/hardware_keyboard_guidelines.md
@@ -144,10 +144,38 @@ The `rules.mk` file can also be placed in a sub-folder, and its reading order is
* `keyboards/top_folder/sub_1/sub_2/sub_3/sub_4/rules.mk`
* `keyboards/top_folder/keymaps/a_keymap/rules.mk`
* `users/a_user_folder/rules.mk`
+ * `keyboards/top_folder/sub_1/sub_2/sub_3/sub_4/post_rules.mk`
+ * `keyboards/top_folder/sub_1/sub_2/sub_3/post_rules.mk`
+ * `keyboards/top_folder/sub_1/sub_2/post_rules.mk`
+ * `keyboards/top_folder/sub_1/post_rules.mk`
+* `keyboards/top_folder/post_rules.mk`
* `common_features.mk`
Many of the settings written in the `rules.mk` file are interpreted by `common_features.mk`, which sets the necessary source files and compiler options.
+The `post_rules.mk` file can interpret `features` of a keyboard-level before `common_features.mk`. For example, when your designed keyboard has the option to implement backlighting or underglow using rgblight.c, writing the following in the `post_rules.mk` makes it easier for the user to configure the `rules.mk`.
+
+* `keyboards/top_folder/keymaps/a_keymap/rules.mk`
+ ```makefile
+ # Please set the following according to the selection of the hardware implementation option.
+ RGBLED_OPTION_TYPE = backlight ## none, backlight or underglow
+ ```
+* `keyboards/top_folder/post_rules.mk`
+ ```makefile
+ ifeq ($(filter $(strip $(RGBLED_OPTION_TYPE))x, nonex backlightx underglowx x),)
+ $(error unknown RGBLED_OPTION_TYPE value "$(RGBLED_OPTION_TYPE)")
+ endif
+
+ ifeq ($(strip $(RGBLED_OPTION_TYPE)),backlight)
+ RGBLIGHT_ENABLE = yes
+ OPT_DEFS += -DRGBLED_NUM=30
+ endif
+ ifeq ($(strip $(RGBLED_OPTION_TYPE)),underglow)
+ RGBLIGHT_ENABLE = yes
+ OPT_DEFS += -DRGBLED_NUM=6
+ endif
+ ```
+
?> See `build_keyboard.mk` and `common_features.mk` for more details.
### `<keyboard_name.c>`