bluetooth

main/bt_hid.h

@@ -0,0 +1,31 @@
+#ifndef BT_HID_H
+#define BT_HID_H
+
+#include "esp_err.h"
+
+/*
+ * bt_hid.h
+ *
+ * BLE HID host module for SC-F001.
+ *
+ * Scans for and connects to any BLE device advertising the HID service UUID
+ * (0x1812). If a previously bonded device address is stored in NVS it is
+ * tried first; otherwise the strongest-RSSI device found during a scan is
+ * used.
+ *
+ * Button mapping (hardcoded, no pairing config):
+ *   VOL_UP   (0x00E9)  -> FSM_OVERRIDE_JACK_UP
+ *   VOL_DOWN (0x00EA)  -> FSM_OVERRIDE_JACK_DOWN
+ *   PREV     (0x00B6)  -> FSM_OVERRIDE_DRIVE_REV
+ *   NEXT     (0x00B5)  -> FSM_OVERRIDE_DRIVE_FWD
+ *
+ * While a button is held the matching pulseOverride() is called every
+ * BT_HID_REPEAT_MS milliseconds so that the FSM keeps re-arming the pulse.
+ */
+
+/* Repeat interval for held buttons (ms). Set to half the FSM poll period. */
+#define BT_HID_REPEAT_MS 50
+
+esp_err_t bt_hid_init(void);
+
+#endif /* BT_HID_H */