Fix broken CI builds on Zephyr 3.2 (#6)

* fix(backlight/tests): Restore original behaviour to fix backlight tests

* fix(build): Remove feature-specific code when SPLIT_BLE, RGB_UNDERGLOW or BACKLIGHT isn't enabled

* refactor(bluetooth): Add battery reporting config.

* Add dedicated battery reporting Kconfig that is `imply`d by
  enabling ZMK_BLE.

* fix(rgb_underglow): Use correct condition in service.c

* Revert "refactor(bluetooth): Add battery reporting config."

This reverts commit 881da25.

---------

Co-authored-by: Peter Johanson <peter@peterjohanson.com>

app/include/zmk/split/bluetooth/central.h

@@ -9,5 +9,10 @@
 int zmk_split_bt_invoke_behavior(uint8_t source, struct zmk_behavior_binding *binding,
                                  struct zmk_behavior_binding_event event, bool state);
 
+#if IS_ENABLED(CONFIG_ZMK_RGB_UNDERGLOW)
 int zmk_split_bt_update_led(struct zmk_periph_led *periph);
-int zmk_split_bt_update_bl(struct backlight_state *periph);
+#endif
+
+#if IS_ENABLED(CONFIG_ZMK_BACKLIGHT)
+int zmk_split_bt_update_bl(struct backlight_state *periph);
+#endif

app/include/zmk/split/bluetooth/service.h

@@ -20,15 +20,19 @@ struct zmk_split_run_behavior_payload {
     char behavior_dev[ZMK_SPLIT_RUN_BEHAVIOR_DEV_LEN];
 } __packed;
 
+#if IS_ENABLED(CONFIG_ZMK_RGB_UNDERGLOW)
 struct zmk_split_update_led_data {
     uint8_t layer;
     uint8_t indicators;
 } __packed;
+#endif
 
+#if IS_ENABLED(CONFIG_ZMK_BACKLIGHT)
 struct zmk_split_update_bl_data {
     uint8_t brightness;
     bool on;
 } __packed;
+#endif
 
 int zmk_split_bt_position_pressed(uint8_t position);
-int zmk_split_bt_position_released(uint8_t position);
+int zmk_split_bt_position_released(uint8_t position);

app/src/rgb_underglow.c

@@ -82,7 +82,9 @@ static struct rgb_underglow_state state;
 
 static struct zmk_periph_led led_data;
 
+#if IS_ENABLED(CONFIG_ZMK_SPLIT_BLE)
 static bool last_ble_state[2];
+#endif
 
 static bool triggered;
 
@@ -328,6 +330,7 @@ static void zmk_rgb_underglow_effect_kinesis() {
         zmk_rgb_underglow_central_send();
     }
 #else
+#if IS_ENABLED(CONFIG_ZMK_SPLIT_BLE)
     // leds for peripheral(right) side
     /* if (zmk_ble_active_profile_is_open()) {
         pixels[0].r = CONFIG_ZMK_RGB_UNDERGLOW_BRT_SCALE * last_ble_state[0];
@@ -361,6 +364,7 @@ static void zmk_rgb_underglow_effect_kinesis() {
         }
         state.animation_step++;
     } else {
+#endif
         // set first led as LED_NUMLOCK
         pixels[2].r =
             (led_data.indicators & ZMK_LED_NUMLOCK_BIT) * CONFIG_ZMK_RGB_UNDERGLOW_BRT_SCALE;
@@ -423,8 +427,10 @@ static void zmk_rgb_underglow_effect_kinesis() {
             pixels[0].b = 0;
             break;
         }
+#if IS_ENABLED(CONFIG_ZMK_SPLIT_BLE)
     }
 #endif
+#endif
 }
 
 static void zmk_rgb_underglow_effect_test() {

app/src/split/bluetooth/central.c

@@ -628,6 +628,7 @@ int zmk_split_bt_invoke_behavior(uint8_t source, struct zmk_behavior_binding *bi
     return split_bt_invoke_behavior_payload(wrapper);
 }
 
+#if IS_ENABLED(CONFIG_ZMK_RGB_UNDERGLOW)
 K_THREAD_STACK_DEFINE(split_central_split_led_q_stack,
                       CONFIG_ZMK_SPLIT_BLE_CENTRAL_SPLIT_LED_STACK_SIZE);
 
@@ -686,7 +687,9 @@ int zmk_split_bt_update_led(struct zmk_periph_led *periph) {
 
     return split_bt_update_led_payload(payload);
 }
+#endif
 
+#if IS_ENABLED(CONFIG_ZMK_BACKLIGHT)
 K_THREAD_STACK_DEFINE(split_central_split_bl_q_stack,
                       CONFIG_ZMK_SPLIT_BLE_CENTRAL_SPLIT_BL_STACK_SIZE);
 
@@ -744,17 +747,25 @@ int zmk_split_bt_update_bl(struct backlight_state *periph) {
 
     return split_bt_update_bl_payload(payload);
 }
+#endif
 
 int zmk_split_bt_central_init(const struct device *_arg) {
     k_work_queue_start(&split_central_split_run_q, split_central_split_run_q_stack,
                        K_THREAD_STACK_SIZEOF(split_central_split_run_q_stack),
                        CONFIG_ZMK_BLE_THREAD_PRIORITY, NULL);
+
+#if IS_ENABLED(CONFIG_ZMK_RGB_UNDERGLOW)
     k_work_queue_start(&split_central_split_led_q, split_central_split_led_q_stack,
                        K_THREAD_STACK_SIZEOF(split_central_split_led_q_stack),
                        CONFIG_ZMK_BLE_THREAD_PRIORITY, NULL);
+#endif
+
+#if IS_ENABLED(CONFIG_ZMK_BACKLIGHT)
     k_work_queue_start(&split_central_split_bl_q, split_central_split_bl_q_stack,
                        K_THREAD_STACK_SIZEOF(split_central_split_bl_q_stack),
                        CONFIG_ZMK_BLE_THREAD_PRIORITY, NULL);
+#endif
+
     bt_conn_cb_register(&conn_callbacks);
 
     return start_scan();

app/src/split/bluetooth/service.c

@@ -29,8 +29,14 @@ static uint8_t num_of_positions = ZMK_KEYMAP_LEN;
 static uint8_t position_state[POS_STATE_LEN];
 
 static struct zmk_split_run_behavior_payload behavior_run_payload;
+
+#if IS_ENABLED(CONFIG_ZMK_RGB_UNDERGLOW)
 static struct zmk_split_update_led_data update_led_data;
+#endif
+
+#if IS_ENABLED(CONFIG_ZMK_BACKLIGHT)
 static struct zmk_split_update_bl_data update_bl_data;
+#endif
 
 static ssize_t split_svc_pos_state(struct bt_conn *conn, const struct bt_gatt_attr *attrs,
                                    void *buf, uint16_t len, uint16_t offset) {
@@ -83,6 +89,7 @@ static ssize_t split_svc_run_behavior(struct bt_conn *conn, const struct bt_gatt
     return len;
 }
 
+#if IS_ENABLED(CONFIG_ZMK_RGB_UNDERGLOW)
 static ssize_t split_svc_update_led(struct bt_conn *conn, const struct bt_gatt_attr *attrs,
                                     const void *buf, uint16_t len, uint16_t offset, uint8_t flags) {
     struct zmk_split_update_led_data *payload = attrs->user_data;
@@ -103,7 +110,9 @@ static ssize_t split_svc_update_led(struct bt_conn *conn, const struct bt_gatt_a
 
     return len;
 }
+#endif
 
+#if IS_ENABLED(CONFIG_ZMK_BACKLIGHT)
 static ssize_t split_svc_update_bl(struct bt_conn *conn, const struct bt_gatt_attr *attrs,
                                    const void *buf, uint16_t len, uint16_t offset, uint8_t flags) {
     struct zmk_split_update_bl_data *payload = attrs->user_data;
@@ -124,6 +133,7 @@ static ssize_t split_svc_update_bl(struct bt_conn *conn, const struct bt_gatt_at
 
     return len;
 }
+#endif
 
 static ssize_t split_svc_num_of_positions(struct bt_conn *conn, const struct bt_gatt_attr *attrs,
                                           void *buf, uint16_t len, uint16_t offset) {
@@ -143,12 +153,19 @@ BT_GATT_SERVICE_DEFINE(
     BT_GATT_CHARACTERISTIC(BT_UUID_DECLARE_128(ZMK_SPLIT_BT_CHAR_RUN_BEHAVIOR_UUID),
                            BT_GATT_CHRC_WRITE_WITHOUT_RESP, BT_GATT_PERM_WRITE_ENCRYPT, NULL,
                            split_svc_run_behavior, &behavior_run_payload),
+
+#if IS_ENABLED(CONFIG_ZMK_RGB_UNDERGLOW)
     BT_GATT_CHARACTERISTIC(BT_UUID_DECLARE_128(ZMK_SPLIT_BT_CHAR_UPDATE_LED_UUID),
                            BT_GATT_CHRC_WRITE_WITHOUT_RESP, BT_GATT_PERM_WRITE_ENCRYPT, NULL,
                            split_svc_update_led, &update_led_data),
+#endif
+
+#if IS_ENABLED(CONFIG_ZMK_BACKLIGHT)
     BT_GATT_CHARACTERISTIC(BT_UUID_DECLARE_128(ZMK_SPLIT_BT_CHAR_UPDATE_BL_UUID),
                            BT_GATT_CHRC_WRITE_WITHOUT_RESP, BT_GATT_PERM_WRITE_ENCRYPT, NULL,
                            split_svc_update_bl, &update_bl_data),
+#endif
+
     BT_GATT_DESCRIPTOR(BT_UUID_NUM_OF_DIGITALS, BT_GATT_PERM_READ, split_svc_num_of_positions, NULL,
                        &num_of_positions), );
 

app/tests/backlight/basic/native_posix_64.conf

@@ -9,3 +9,5 @@ CONFIG_SYS_CLOCK_TICKS_PER_SEC=1000
 
 CONFIG_LED_GPIO=y
 CONFIG_ZMK_BACKLIGHT=y
+CONFIG_ZMK_BACKLIGHT_BRT_START=40
+CONFIG_ZMK_BACKLIGHT_BRT_SCALE=100

app/tests/backlight/config-brt/native_posix_64.conf

@@ -10,3 +10,4 @@ CONFIG_SYS_CLOCK_TICKS_PER_SEC=1000
 CONFIG_LED_GPIO=y
 CONFIG_ZMK_BACKLIGHT=y
 CONFIG_ZMK_BACKLIGHT_BRT_START=60
+CONFIG_ZMK_BACKLIGHT_BRT_SCALE=100

app/tests/backlight/config-on/native_posix_64.conf

@@ -10,3 +10,5 @@ CONFIG_SYS_CLOCK_TICKS_PER_SEC=1000
 CONFIG_LED_GPIO=y
 CONFIG_ZMK_BACKLIGHT=y
 CONFIG_ZMK_BACKLIGHT_ON_START=n
+CONFIG_ZMK_BACKLIGHT_BRT_START=40
+CONFIG_ZMK_BACKLIGHT_BRT_SCALE=100

app/tests/backlight/config-step/native_posix_64.conf

@@ -11,3 +11,4 @@ CONFIG_LED_GPIO=y
 CONFIG_ZMK_BACKLIGHT=y
 CONFIG_ZMK_BACKLIGHT_BRT_START=60
 CONFIG_ZMK_BACKLIGHT_BRT_STEP=30
+CONFIG_ZMK_BACKLIGHT_BRT_SCALE=100

app/tests/backlight/cycle/native_posix_64.conf

@@ -9,3 +9,5 @@ CONFIG_SYS_CLOCK_TICKS_PER_SEC=1000
 
 CONFIG_LED_GPIO=y
 CONFIG_ZMK_BACKLIGHT=y
+CONFIG_ZMK_BACKLIGHT_BRT_START=40
+CONFIG_ZMK_BACKLIGHT_BRT_SCALE=100

app/tests/backlight/low-brightness/native_posix_64.conf

@@ -9,3 +9,5 @@ CONFIG_SYS_CLOCK_TICKS_PER_SEC=1000
 
 CONFIG_LED_GPIO=y
 CONFIG_ZMK_BACKLIGHT=y
+CONFIG_ZMK_BACKLIGHT_BRT_START=40
+CONFIG_ZMK_BACKLIGHT_BRT_SCALE=100