1 files changed, 89 insertions, 0 deletions
diff --git a/keyboards/keychron/bluetooth/indicator.h b/keyboards/keychron/bluetooth/indicator.h
new file mode 100644
index 0000000000..d09cf3c7cf
--- /dev/null
+++ b/keyboards/keychron/bluetooth/indicator.h
@@ -0,0 +1,89 @@
+/* Copyright 2022 @ lokher (https://www.keychron.com)
+ *
+ * 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/>.
+ */
+
+#pragma once
+
+#include "config.h"
+#include "bluetooth.h"
+
+/* Indication of pairing */
+#ifndef INDICATOR_CONFIG_PARING
+#    define INDICATOR_CONFIG_PARING {INDICATOR_BLINK, 1000, 1000, 0, true, 0};
+#endif
+
+/* Indication on Connected */
+#ifndef INDICATOR_CONFIG_CONNECTD
+#    define INDICATOR_CONFIG_CONNECTD {INDICATOR_ON_OFF, 2000, 250, 2000, true, 0};
+#endif
+
+/* Reconnecting indication */
+#ifndef INDICATOR_CONFIG_RECONNECTING
+#    define INDICATOR_CONFIG_RECONNECTING {INDICATOR_BLINK, 100, 100, 600, true, 0};
+#endif
+
+/* Disconnected indication */
+#ifndef INDICATOR_CONFIG_DISCONNECTED
+#    define INDICATOR_CONFIG_DISCONNECTED {INDICATOR_NONE, 100, 100, 600, false, 0};
+#endif
+
+/* Uint: Second */
+#ifndef DISCONNECTED_BACKLIGHT_DISABLE_TIMEOUT
+#    define DISCONNECTED_BACKLIGHT_OFF_DELAY_TIME 40
+#endif
+
+/* Uint: Second, the timer restarts on key activities. */
+#ifndef CONNECTED_BACKLIGHT_DISABLE_TIMEOUT
+#    define CONNECTED_BACKLIGHT_OFF_DELAY_TIME 600
+#endif
+
+#ifndef LOW_BAT_ON_OFF_DURATION
+#    define LOW_BAT_ON_OFF_DURATION 1000
+#endif
+
+#if BT_HOST_MAX_COUNT > 6
+#    pragma error("HOST_COUNT max value is 6")
+#endif
+
+typedef enum { INDICATOR_NONE, INDICATOR_OFF, INDICATOR_ON, INDICATOR_ON_OFF, INDICATOR_BLINK, INDICATOR_LAST } indicator_type_t;
+
+typedef struct PACKED {
+    indicator_type_t type;
+    uint32_t         on_time;
+    uint32_t         off_time;
+    uint32_t         duration;
+    bool             highlight;
+    uint8_t          value;
+    uint32_t         elapsed;
+} indicator_config_t;
+
+typedef struct PACKED {
+    uint8_t value;
+    bool    saved;
+} backlight_state_t;
+
+void indicator_init(void);
+void indicator_set(bluetooth_state_t state, uint8_t host_index);
+void indicator_backlight_timer_reset(bool enable);
+bool indicator_hook_key(uint16_t keycode);
+void indicator_enable(void);
+void indicator_disable(void);
+void indicator_stop(void);
+bool indicator_is_backlit_enabled_eeprom(void);
+bool indicator_is_running(void);
+
+void indicator_battery_low_enable(bool enable);
+
+void indicator_task(void);