Move tmk_core/common/backlight to quantum/backlight (#6710)

* Move tmk_core/common/backlight to quantum/backlight

* Add guards to backlight inclusion

* Add guards to backlight inclusion

* Update backlight guards on clueboard/60

* Use full paths to avoid vpath issues

13 files changed, 230 insertions, 212 deletions

diff --git a/common_features.mk b/common_features.mk
index 05a99fc63..83b2b51ae 100644
--- a/common_features.mk
+++ b/common_features.mk
@@ -246,6 +246,11 @@ ifneq ($(strip $(BACKLIGHT_ENABLE)), no)
         CIE1931_CURVE = yes
     endif
 
+
+    COMMON_VPATH += $(QUANTUM_DIR)/backlight
+    SRC += $(QUANTUM_DIR)/backlight/backlight.c
+    OPT_DEFS += -DBACKLIGHT_ENABLE
+
     ifeq ($(strip $(BACKLIGHT_ENABLE)), custom)
         OPT_DEFS += -DBACKLIGHT_CUSTOM_DRIVER
     endif
diff --git a/keyboards/clueboard/60/led.c b/keyboards/clueboard/60/led.c
index 350696736..91a2c537d 100644
--- a/keyboards/clueboard/60/led.c
+++ b/keyboards/clueboard/60/led.c
@@ -16,21 +16,21 @@
 */
 
 #include "hal.h"
-#include "backlight.h"
 #include "led.h"
 #include "printf.h"
 
+#ifdef BACKLIGHT_ENABLE
+#include "backlight.h"
+
 void backlight_init_ports(void) {
     printf("backlight_init_ports()\n");
-    #ifdef BACKLIGHT_ENABLE
+
     palSetPadMode(GPIOB, 8, PAL_MODE_OUTPUT_PUSHPULL);
     palSetPad(GPIOB, 8);
-    #endif
 }
 
 void backlight_set(uint8_t level) {
     printf("backlight_set(%d)\n", level);
-    #ifdef BACKLIGHT_ENABLE
     if (level == 0) {
         // Turn backlight off
         palSetPad(GPIOB, 8);
@@ -38,8 +38,8 @@ void backlight_set(uint8_t level) {
         // Turn backlight on
         palClearPad(GPIOB, 8);
     }
-    #endif
 }
+#endif
 
 void led_set_kb(uint8_t usb_led) {
     printf("led_set_kb(%d)\n", usb_led);
diff --git a/quantum/backlight/backlight.c b/quantum/backlight/backlight.c
index e26de86bf..708022f68 100644
--- a/quantum/backlight/backlight.c
+++ b/quantum/backlight/backlight.c
@@ -1 +1,193 @@
-// TODO: Add common code here, for example cie_lightness implementation
+/*
+Copyright 2013 Mathias Andersson <wraul@dbox.se>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "backlight.h"
+#include "eeconfig.h"
+#include "debug.h"
+
+backlight_config_t backlight_config;
+
+/** \brief Backlight initialization
+ *
+ * FIXME: needs doc
+ */
+void backlight_init(void) {
+    /* check signature */
+    if (!eeconfig_is_enabled()) {
+        eeconfig_init();
+    }
+    backlight_config.raw = eeconfig_read_backlight();
+    if (backlight_config.level > BACKLIGHT_LEVELS) {
+        backlight_config.level = BACKLIGHT_LEVELS;
+    }
+    backlight_set(backlight_config.enable ? backlight_config.level : 0);
+}
+
+/** \brief Backlight increase
+ *
+ * FIXME: needs doc
+ */
+void backlight_increase(void) {
+    if (backlight_config.level < BACKLIGHT_LEVELS) {
+        backlight_config.level++;
+    }
+    backlight_config.enable = 1;
+    eeconfig_update_backlight(backlight_config.raw);
+    dprintf("backlight increase: %u\n", backlight_config.level);
+    backlight_set(backlight_config.level);
+}
+
+/** \brief Backlight decrease
+ *
+ * FIXME: needs doc
+ */
+void backlight_decrease(void) {
+    if (backlight_config.level > 0) {
+        backlight_config.level--;
+        backlight_config.enable = !!backlight_config.level;
+        eeconfig_update_backlight(backlight_config.raw);
+    }
+    dprintf("backlight decrease: %u\n", backlight_config.level);
+    backlight_set(backlight_config.level);
+}
+
+/** \brief Backlight toggle
+ *
+ * FIXME: needs doc
+ */
+void backlight_toggle(void) {
+    bool enabled = backlight_config.enable;
+    dprintf("backlight toggle: %u\n", enabled);
+    if (enabled)
+        backlight_disable();
+    else
+        backlight_enable();
+}
+
+/** \brief Enable backlight
+ *
+ * FIXME: needs doc
+ */
+void backlight_enable(void) {
+    if (backlight_config.enable) return;  // do nothing if backlight is already on
+
+    backlight_config.enable = true;
+    if (backlight_config.raw == 1)  // enabled but level == 0
+        backlight_config.level = 1;
+    eeconfig_update_backlight(backlight_config.raw);
+    dprintf("backlight enable\n");
+    backlight_set(backlight_config.level);
+}
+
+/** \brief Disable backlight
+ *
+ * FIXME: needs doc
+ */
+void backlight_disable(void) {
+    if (!backlight_config.enable) return;  // do nothing if backlight is already off
+
+    backlight_config.enable = false;
+    eeconfig_update_backlight(backlight_config.raw);
+    dprintf("backlight disable\n");
+    backlight_set(0);
+}
+
+/** /brief Get the backlight status
+ *
+ * FIXME: needs doc
+ */
+bool is_backlight_enabled(void) { return backlight_config.enable; }
+
+/** \brief Backlight step through levels
+ *
+ * FIXME: needs doc
+ */
+void backlight_step(void) {
+    backlight_config.level++;
+    if (backlight_config.level > BACKLIGHT_LEVELS) {
+        backlight_config.level = 0;
+    }
+    backlight_config.enable = !!backlight_config.level;
+    eeconfig_update_backlight(backlight_config.raw);
+    dprintf("backlight step: %u\n", backlight_config.level);
+    backlight_set(backlight_config.level);
+}
+
+/** \brief Backlight set level
+ *
+ * FIXME: needs doc
+ */
+void backlight_level(uint8_t level) {
+    if (level > BACKLIGHT_LEVELS) level = BACKLIGHT_LEVELS;
+    backlight_config.level  = level;
+    backlight_config.enable = !!backlight_config.level;
+    eeconfig_update_backlight(backlight_config.raw);
+    backlight_set(backlight_config.level);
+}
+
+/** \brief Get backlight level
+ *
+ * FIXME: needs doc
+ */
+uint8_t get_backlight_level(void) { return backlight_config.level; }
+
+#ifdef BACKLIGHT_BREATHING
+/** \brief Backlight breathing toggle
+ *
+ * FIXME: needs doc
+ */
+void backlight_toggle_breathing(void) {
+    bool breathing = backlight_config.breathing;
+    dprintf("backlight breathing toggle: %u\n", breathing);
+    if (breathing)
+        backlight_disable_breathing();
+    else
+        backlight_enable_breathing();
+}
+
+/** \brief Enable backlight breathing
+ *
+ * FIXME: needs doc
+ */
+void backlight_enable_breathing(void) {
+    if (backlight_config.breathing) return;  // do nothing if breathing is already on
+
+    backlight_config.breathing = true;
+    eeconfig_update_backlight(backlight_config.raw);
+    dprintf("backlight breathing enable\n");
+    breathing_enable();
+}
+
+/** \brief Disable backlight breathing
+ *
+ * FIXME: needs doc
+ */
+void backlight_disable_breathing(void) {
+    if (!backlight_config.breathing) return;  // do nothing if breathing is already off
+
+    backlight_config.breathing = false;
+    eeconfig_update_backlight(backlight_config.raw);
+    dprintf("backlight breathing disable\n");
+    breathing_disable();
+}
+
+/** \brief Get the backlight breathing status
+ *
+ * FIXME: needs doc
+ */
+bool is_backlight_breathing(void) { return backlight_config.breathing; }
+#endif
diff --git a/tmk_core/common/backlight.h b/quantum/backlight/backlight.h
index 1e581055d..1e581055d 100644
--- a/tmk_core/common/backlight.h
+++ b/quantum/backlight/backlight.h
diff --git a/quantum/keymap_common.c b/quantum/keymap_common.c
index 9af951008..4fa45ac37 100644
--- a/quantum/keymap_common.c
+++ b/quantum/keymap_common.c
@@ -26,9 +26,12 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include "action.h"
 #include "action_macro.h"
 #include "debug.h"
-#include "backlight.h"
 #include "quantum.h"
 
+#ifdef BACKLIGHT_ENABLE
+#    include "backlight.h"
+#endif
+
 #ifdef MIDI_ENABLE
 #    include "process_midi.h"
 #endif
diff --git a/quantum/quantum.c b/quantum/quantum.c
index e615cfc0f..2020770ea 100644
--- a/quantum/quantum.c
+++ b/quantum/quantum.c
@@ -24,8 +24,10 @@
 #    include "outputselect.h"
 #endif
 
-#include "backlight.h"
-extern backlight_config_t backlight_config;
+#ifdef BACKLIGHT_ENABLE
+#    include "backlight.h"
+    extern backlight_config_t backlight_config;
+#endif
 
 #ifdef FAUXCLICKY_ENABLE
 #    include "fauxclicky.h"
diff --git a/tmk_core/common.mk b/tmk_core/common.mk
index 221688755..db5535346 100644
--- a/tmk_core/common.mk
+++ b/tmk_core/common.mk
@@ -153,11 +153,6 @@ ifeq ($(strip $(NO_SUSPEND_POWER_DOWN)), yes)
     TMK_COMMON_DEFS += -DNO_SUSPEND_POWER_DOWN
 endif
 
-ifeq ($(strip $(BACKLIGHT_ENABLE)), yes)
-    TMK_COMMON_SRC += $(COMMON_DIR)/backlight.c
-    TMK_COMMON_DEFS += -DBACKLIGHT_ENABLE
-endif
-
 ifeq ($(strip $(BLUETOOTH_ENABLE)), yes)
     TMK_COMMON_DEFS += -DBLUETOOTH_ENABLE
         TMK_COMMON_DEFS += -DNO_USB_STARTUP_CHECK
diff --git a/tmk_core/common/action.c b/tmk_core/common/action.c
index 44b19d368..bd6aeba4f 100644
--- a/tmk_core/common/action.c
+++ b/tmk_core/common/action.c
@@ -20,7 +20,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include "mousekey.h"
 #include "command.h"
 #include "led.h"
-#include "backlight.h"
 #include "action_layer.h"
 #include "action_tapping.h"
 #include "action_macro.h"
@@ -28,6 +27,10 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include "action.h"
 #include "wait.h"
 
+#ifdef BACKLIGHT_ENABLE
+#    include "backlight.h"
+#endif
+
 #ifdef DEBUG_ACTION
 #    include "debug.h"
 #else
diff --git a/tmk_core/common/avr/suspend.c b/tmk_core/common/avr/suspend.c
index 574000fcd..c59c19688 100644
--- a/tmk_core/common/avr/suspend.c
+++ b/tmk_core/common/avr/suspend.c
@@ -4,7 +4,6 @@
 #include <avr/interrupt.h>
 #include "matrix.h"
 #include "action.h"
-#include "backlight.h"
 #include "suspend_avr.h"
 #include "suspend.h"
 #include "timer.h"
@@ -16,6 +15,10 @@
 #    include "lufa.h"
 #endif
 
+#ifdef BACKLIGHT_ENABLE
+#    include "backlight.h"
+#endif
+
 #ifdef AUDIO_ENABLE
 #    include "audio.h"
 #endif /* AUDIO_ENABLE */
diff --git a/tmk_core/common/backlight.c b/tmk_core/common/backlight.c
deleted file mode 100644
index 708022f68..000000000
--- a/tmk_core/common/backlight.c
+++ /dev/null
@@ -1,193 +0,0 @@
-/*
-Copyright 2013 Mathias Andersson <wraul@dbox.se>
-
-This program is free software: you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation, either version 2 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program.  If not, see <http://www.gnu.org/licenses/>.
-*/
-
-#include "backlight.h"
-#include "eeconfig.h"
-#include "debug.h"
-
-backlight_config_t backlight_config;
-
-/** \brief Backlight initialization
- *
- * FIXME: needs doc
- */
-void backlight_init(void) {
-    /* check signature */
-    if (!eeconfig_is_enabled()) {
-        eeconfig_init();
-    }
-    backlight_config.raw = eeconfig_read_backlight();
-    if (backlight_config.level > BACKLIGHT_LEVELS) {
-        backlight_config.level = BACKLIGHT_LEVELS;
-    }
-    backlight_set(backlight_config.enable ? backlight_config.level : 0);
-}
-
-/** \brief Backlight increase
- *
- * FIXME: needs doc
- */
-void backlight_increase(void) {
-    if (backlight_config.level < BACKLIGHT_LEVELS) {
-        backlight_config.level++;
-    }
-    backlight_config.enable = 1;
-    eeconfig_update_backlight(backlight_config.raw);
-    dprintf("backlight increase: %u\n", backlight_config.level);
-    backlight_set(backlight_config.level);
-}
-
-/** \brief Backlight decrease
- *
- * FIXME: needs doc
- */
-void backlight_decrease(void) {
-    if (backlight_config.level > 0) {
-        backlight_config.level--;
-        backlight_config.enable = !!backlight_config.level;
-        eeconfig_update_backlight(backlight_config.raw);
-    }
-    dprintf("backlight decrease: %u\n", backlight_config.level);
-    backlight_set(backlight_config.level);
-}
-
-/** \brief Backlight toggle
- *
- * FIXME: needs doc
- */
-void backlight_toggle(void) {
-    bool enabled = backlight_config.enable;
-    dprintf("backlight toggle: %u\n", enabled);
-    if (enabled)
-        backlight_disable();
-    else
-        backlight_enable();
-}
-
-/** \brief Enable backlight
- *
- * FIXME: needs doc
- */
-void backlight_enable(void) {
-    if (backlight_config.enable) return;  // do nothing if backlight is already on
-
-    backlight_config.enable = true;
-    if (backlight_config.raw == 1)  // enabled but level == 0
-        backlight_config.level = 1;
-    eeconfig_update_backlight(backlight_config.raw);
-    dprintf("backlight enable\n");
-    backlight_set(backlight_config.level);
-}
-
-/** \brief Disable backlight
- *
- * FIXME: needs doc
- */
-void backlight_disable(void) {
-    if (!backlight_config.enable) return;  // do nothing if backlight is already off
-
-    backlight_config.enable = false;
-    eeconfig_update_backlight(backlight_config.raw);
-    dprintf("backlight disable\n");
-    backlight_set(0);
-}
-
-/** /brief Get the backlight status
- *
- * FIXME: needs doc
- */
-bool is_backlight_enabled(void) { return backlight_config.enable; }
-
-/** \brief Backlight step through levels
- *
- * FIXME: needs doc
- */
-void backlight_step(void) {
-    backlight_config.level++;
-    if (backlight_config.level > BACKLIGHT_LEVELS) {
-        backlight_config.level = 0;
-    }
-    backlight_config.enable = !!backlight_config.level;
-    eeconfig_update_backlight(backlight_config.raw);
-    dprintf("backlight step: %u\n", backlight_config.level);
-    backlight_set(backlight_config.level);
-}
-
-/** \brief Backlight set level
- *
- * FIXME: needs doc
- */
-void backlight_level(uint8_t level) {
-    if (level > BACKLIGHT_LEVELS) level = BACKLIGHT_LEVELS;
-    backlight_config.level  = level;
-    backlight_config.enable = !!backlight_config.level;
-    eeconfig_update_backlight(backlight_config.raw);
-    backlight_set(backlight_config.level);
-}
-
-/** \brief Get backlight level
- *
- * FIXME: needs doc
- */
-uint8_t get_backlight_level(void) { return backlight_config.level; }
-
-#ifdef BACKLIGHT_BREATHING
-/** \brief Backlight breathing toggle
- *
- * FIXME: needs doc
- */
-void backlight_toggle_breathing(void) {
-    bool breathing = backlight_config.breathing;
-    dprintf("backlight breathing toggle: %u\n", breathing);
-    if (breathing)
-        backlight_disable_breathing();
-    else
-        backlight_enable_breathing();
-}
-
-/** \brief Enable backlight breathing
- *
- * FIXME: needs doc
- */
-void backlight_enable_breathing(void) {
-    if (backlight_config.breathing) return;  // do nothing if breathing is already on
-
-    backlight_config.breathing = true;
-    eeconfig_update_backlight(backlight_config.raw);
-    dprintf("backlight breathing enable\n");
-    breathing_enable();
-}
-
-/** \brief Disable backlight breathing
- *
- * FIXME: needs doc
- */
-void backlight_disable_breathing(void) {
-    if (!backlight_config.breathing) return;  // do nothing if breathing is already off
-
-    backlight_config.breathing = false;
-    eeconfig_update_backlight(backlight_config.raw);
-    dprintf("backlight breathing disable\n");
-    breathing_disable();
-}
-
-/** \brief Get the backlight breathing status
- *
- * FIXME: needs doc
- */
-bool is_backlight_breathing(void) { return backlight_config.breathing; }
-#endif
diff --git a/tmk_core/common/chibios/suspend.c b/tmk_core/common/chibios/suspend.c
index ae1c6f53e..c0f9c28d4 100644
--- a/tmk_core/common/chibios/suspend.c
+++ b/tmk_core/common/chibios/suspend.c
@@ -8,10 +8,13 @@
 #include "action_util.h"
 #include "mousekey.h"
 #include "host.h"
-#include "backlight.h"
 #include "suspend.h"
 #include "wait.h"
 
+#ifdef BACKLIGHT_ENABLE
+#    include "backlight.h"
+#endif
+
 /** \brief suspend idle
  *
  * FIXME: needs doc
diff --git a/tmk_core/common/command.c b/tmk_core/common/command.c
index 8bf72ef25..82cd80609 100644
--- a/tmk_core/common/command.c
+++ b/tmk_core/common/command.c
@@ -32,10 +32,13 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include "sleep_led.h"
 #include "led.h"
 #include "command.h"
-#include "backlight.h"
 #include "quantum.h"
 #include "version.h"
 
+#ifdef BACKLIGHT_ENABLE
+#    include "backlight.h"
+#endif
+
 #ifdef MOUSEKEY_ENABLE
 #    include "mousekey.h"
 #endif
diff --git a/tmk_core/common/keyboard.c b/tmk_core/common/keyboard.c
index 9806b5015..63ace9793 100644
--- a/tmk_core/common/keyboard.c
+++ b/tmk_core/common/keyboard.c
@@ -29,8 +29,10 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include "util.h"
 #include "sendchar.h"
 #include "eeconfig.h"
-#include "backlight.h"
 #include "action_layer.h"
+#ifdef BACKLIGHT_ENABLE
+#    include "backlight.h"
+#endif
 #ifdef BOOTMAGIC_ENABLE
 #    include "bootmagic.h"
 #else