API for BLE Beacon app

thanks to Willy-JL

firmware/targets/f7/api_symbols.csv

@@ -1079,6 +1079,7 @@ Function,+,furi_hal_bt_serial_set_rpc_status,void,FuriHalBtSerialRpcStatus
 Function,+,furi_hal_bt_serial_start,void,
 Function,+,furi_hal_bt_serial_stop,void,
 Function,+,furi_hal_bt_serial_tx,_Bool,"uint8_t*, uint16_t"
+Function,+,furi_hal_bt_set_custom_adv_data,void,"const uint8_t*, size_t"
 Function,+,furi_hal_bt_set_key_storage_change_callback,void,"BleGlueKeyStorageChangedCallback, void*"
 Function,+,furi_hal_bt_set_profile_adv_name,void,"FuriHalBtProfile, const char[( ( 1 + 8 + ( 8 + 1 ) ) + 1 )]"
 Function,+,furi_hal_bt_set_profile_mac_addr,void,"FuriHalBtProfile, const uint8_t[( 6 )]"
@@ -1662,6 +1663,7 @@ Function,-,gammaf_r,float,"float, int*"
 Function,-,gap_get_remote_conn_rssi,uint32_t,int8_t*
 Function,-,gap_get_state,GapState,
 Function,-,gap_init,_Bool,"GapConfig*, GapEventCallback, void*"
+Function,-,gap_set_custom_adv_data,void,"size_t, const uint8_t*"
 Function,-,gap_start_advertising,void,
 Function,-,gap_stop_advertising,void,
 Function,-,gap_thread_stop,void,

firmware/targets/f7/ble_glue/gap.c

@@ -37,6 +37,9 @@ typedef struct {
     FuriThread* thread;
     FuriMessageQueue* command_queue;
     bool enable_adv;
+    // API for BLE beacon plugin
+    size_t custom_adv_len;
+    const uint8_t* custom_adv_data;
 } Gap;
 
 typedef enum {
@@ -430,18 +433,36 @@ static void gap_advertise_start(GapState new_state) {
         }
     }
     // Configure advertising
-    status = aci_gap_set_discoverable(
-        ADV_IND,
-        min_interval,
-        max_interval,
-        CFG_IDENTITY_ADDRESS,
-        0,
-        strlen(gap->service.adv_name),
-        (uint8_t*)gap->service.adv_name,
-        gap->service.adv_svc_uuid_len,
-        gap->service.adv_svc_uuid,
-        0,
-        0);
+    // API For BLE beacon plugin
+    if(gap->custom_adv_data) {
+        // Custom adv logic from https://techryptic.github.io/2023/09/01/Annoying-Apple-Fans/
+        static const uint16_t gap_appearance = 0x0000; //GAP_APPEARANCE_UNKNOWN
+        status = aci_gatt_update_char_value(
+            gap->service.gap_svc_handle,
+            gap->service.gap_svc_handle,
+            0,
+            sizeof(gap_appearance),
+            (uint8_t*)&gap_appearance);
+        status = aci_gap_set_discoverable(
+            ADV_IND, min_interval, max_interval, CFG_IDENTITY_ADDRESS, 0, 0, NULL, 0, NULL, 0, 0);
+        status = aci_gap_delete_ad_type(AD_TYPE_FLAGS);
+        status = aci_gap_delete_ad_type(AD_TYPE_TX_POWER_LEVEL);
+        status = aci_gap_update_adv_data(gap->custom_adv_len, gap->custom_adv_data);
+    } else {
+        // Default adv logic
+        status = aci_gap_set_discoverable(
+            ADV_IND,
+            min_interval,
+            max_interval,
+            CFG_IDENTITY_ADDRESS,
+            0,
+            strlen(gap->service.adv_name),
+            (uint8_t*)gap->service.adv_name,
+            gap->service.adv_svc_uuid_len,
+            gap->service.adv_svc_uuid,
+            0,
+            0);
+    }
     if(status) {
         FURI_LOG_E(TAG, "set_discoverable failed %d", status);
     }
@@ -559,6 +580,13 @@ uint32_t gap_get_remote_conn_rssi(int8_t* rssi) {
     return 0;
 }
 
+// API For BLE beacon plugin
+
+void gap_set_custom_adv_data(size_t adv_len, const uint8_t* adv_data) {
+    gap->custom_adv_len = adv_len;
+    gap->custom_adv_data = adv_data;
+}
+
 GapState gap_get_state() {
     GapState state;
     if(gap) {

firmware/targets/f7/ble_glue/gap.h

@@ -83,6 +83,8 @@ void gap_thread_stop();
 
 uint32_t gap_get_remote_conn_rssi(int8_t* rssi);
 
+void gap_set_custom_adv_data(size_t adv_len, const uint8_t* adv_data);
+
 #ifdef __cplusplus
 }
 #endif

firmware/targets/f7/furi_hal/furi_hal_bt.c

@@ -483,6 +483,13 @@ uint32_t furi_hal_bt_get_conn_rssi(uint8_t* rssi) {
     return since;
 }
 
+// API for BLE beacon plugin
+void furi_hal_bt_set_custom_adv_data(const uint8_t* adv_data, size_t adv_len) {
+    gap_set_custom_adv_data(adv_len, adv_data);
+    furi_hal_bt_stop_advertising();
+    furi_hal_bt_start_advertising();
+}
+
 void furi_hal_bt_reverse_mac_addr(uint8_t mac_addr[GAP_MAC_ADDR_SIZE]) {
     uint8_t tmp;
     for(size_t i = 0; i < GAP_MAC_ADDR_SIZE / 2; i++) {

firmware/targets/furi_hal_include/furi_hal_bt.h

@@ -252,6 +252,9 @@ const uint8_t* furi_hal_bt_get_profile_mac_addr(FuriHalBtProfile profile);
 
 uint32_t furi_hal_bt_get_conn_rssi(uint8_t* rssi);
 
+// API for BLE Beacon plugin
+void furi_hal_bt_set_custom_adv_data(const uint8_t* adv_data, size_t adv_len);
+
 void furi_hal_bt_set_profile_pairing_method(FuriHalBtProfile profile, GapPairing pairing_method);
 
 GapPairing furi_hal_bt_get_profile_pairing_method(FuriHalBtProfile profile);