Remove SERIAL_LINK feature (#14727)

* Remove SERIAL_LINK

* more stale paths in doxygen-todo

* Fix

* More refs

* Update testing docs

* Update doxygen-todo

Co-authored-by: Ryan <fauxpark@gmail.com>

Co-authored-by: Ryan <fauxpark@gmail.com>

build_test.mk

@@ -55,7 +55,6 @@ include common_features.mk
 include $(TMK_PATH)/common.mk
 include $(QUANTUM_PATH)/debounce/tests/rules.mk
 include $(QUANTUM_PATH)/sequencer/tests/rules.mk
-include $(QUANTUM_PATH)/serial_link/tests/rules.mk
 include $(TMK_PATH)/common/test/rules.mk
 ifneq ($(filter $(FULL_TESTS),$(TEST)),)
 include build_full_test.mk

common_features.mk

@@ -13,8 +13,6 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-SERIAL_PATH := $(QUANTUM_PATH)/serial_link
-
 QUANTUM_SRC += \
     $(QUANTUM_DIR)/quantum.c \
     $(QUANTUM_DIR)/send_string.c \
@@ -363,17 +361,6 @@ ifeq ($(strip $(PRINTING_ENABLE)), yes)
     SRC += $(TMK_DIR)/protocol/serial_uart.c
 endif
 
-ifeq ($(strip $(SERIAL_LINK_ENABLE)), yes)
-    SERIAL_SRC := $(wildcard $(SERIAL_PATH)/protocol/*.c)
-    SERIAL_SRC += $(wildcard $(SERIAL_PATH)/system/*.c)
-    SERIAL_DEFS += -DSERIAL_LINK_ENABLE
-    COMMON_VPATH += $(SERIAL_PATH)
-
-    SRC += $(patsubst $(QUANTUM_PATH)/%,%,$(SERIAL_SRC))
-    OPT_DEFS += $(SERIAL_DEFS)
-    VAPTH += $(SERIAL_PATH)
-endif
-
 VARIABLE_TRACE ?= no
 ifneq ($(strip $(VARIABLE_TRACE)),no)
     SRC += $(QUANTUM_DIR)/variable_trace.c

disable_features.mk

@@ -19,7 +19,6 @@ FEATURE_NAMES += PS2_MOUSE
 FEATURE_NAMES += RGBLIGHT
 FEATURE_NAMES += RGB_MATRIX
 FEATURE_NAMES += SLEEP_LED
-FEATURE_NAMES += SERIAL_LINK
 FEATURE_NAMES += STENO
 FEATURE_NAMES += SWAP_HANDS
 FEATURE_NAMES += WATCHDOG

docs/unit_testing.md

@@ -20,12 +20,12 @@ One thing to remember, is that you have to append `extern "C"` around all of you
 
 ## Adding Tests for New or Existing Features
 
-If you want to unit test some feature, then take a look at the existing serial_link tests, in the `quantum/serial_link/tests folder`, and follow the steps below to create a similar structure.
+If you want to unit test a feature, take a look at some of the existing tests, for example those in the `quantum/sequencer/tests` folder. Then follow the steps below to create a similar structure.
 
 1. If it doesn't already exist, add a test subfolder to the folder containing the feature.
 2. Create a `testlist.mk` and a `rules.mk` file in that folder.
 3. Include those files from the root folder `testlist.mk`and `build_test.mk` respectively.
-4. Add a new name for your testgroup to the `testlist.mk` file. Each group defined there will be a separate executable. And that's how you can support mocking out different parts. Note that it's worth adding some common prefix, just like it's done for the serial_link tests. The reason for that is that the make command allows substring filtering, so this way you can easily run a subset of the tests.
+4. Add a new name for your testgroup to the `testlist.mk` file. Each group defined there will be a separate executable. And that's how you can support mocking out different parts. Note that it's worth adding some common prefix, just like it's done for the existing tests. The reason for that is that the make command allows substring filtering, so this way you can easily run a subset of the tests.
 5. Define the source files and required options in the `rules.mk` file.
    * `_SRC` for source files
    * `_DEFS` for additional defines

doxygen-todo

@@ -6,16 +6,8 @@ tmk_core/protocol/midi/bytequeue
 tmk_core/protocol/midi/Config
 tmk_core/protocol/usb_hid
 tmk_core/protocol/vusb
-tmk_core/tool
-tmk_core/tool/chibios
 quantum
-quantum/api
 quantum/audio
 quantum/keymap_extras
 quantum/process_keycode
-quantum/serial_link
-quantum/serial_link/protocol
-quantum/serial_link/system
-quantum/serial_link/tests
-quantum/tools
 drivers

keyboards/ergodox_infinity/ergodox_infinity.c

@@ -3,7 +3,6 @@
 #include <hal.h>
 #include <string.h>
 #include "eeconfig.h"
-#include "serial_link/system/serial_link.h"
 
 #define RED_PIN 1
 #define GREEN_PIN 2

quantum/keyboard.c

@@ -61,9 +61,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #ifdef STENO_ENABLE
 #    include "process_steno.h"
 #endif
-#ifdef SERIAL_LINK_ENABLE
-#    include "serial_link/system/serial_link.h"
-#endif
 #ifdef POINTING_DEVICE_ENABLE
 #    include "pointing_device.h"
 #endif
@@ -511,10 +508,6 @@ void keyboard_task(void) {
     adb_mouse_task();
 #endif
 
-#ifdef SERIAL_LINK_ENABLE
-    serial_link_update();
-#endif
-
 #ifdef POINTING_DEVICE_ENABLE
     pointing_device_task();
 #endif

quantum/sequencer/tests/rules.mk

@@ -1,5 +1,5 @@
 # The letter case of these variables might seem odd. However:
-# - it is consistent with the serial_link example that is used as a reference in the Unit Testing article (https://docs.qmk.fm/#/unit_testing?id=adding-tests-for-new-or-existing-features)
+# - it is consistent with the example that is used as a reference in the Unit Testing article (https://docs.qmk.fm/#/unit_testing?id=adding-tests-for-new-or-existing-features)
 # - Neither `make test:sequencer` or `make test:SEQUENCER` work when using SCREAMING_SNAKE_CASE
 
 sequencer_DEFS := -DNO_DEBUG -DMIDI_MOCKED