[FL-3376] Fixed GATT attribute order (#2776)

* hal: gatt: swapped rx/tx serial chars order
* hal: gatt: reordered HID attrs to maintain previous order

Co-authored-by: Aleksandr Kutuzov <alleteam@gmail.com>

firmware/targets/f7/ble_glue/gap.c

@@ -330,6 +330,7 @@ static void gap_init_svc(Gap* gap) {
     if(status) {
         FURI_LOG_E(TAG, "Failed updating name characteristic: %d", status);
     }
+
     uint8_t gap_appearence_char_uuid[2] = {
         gap->config->appearance_char & 0xff, gap->config->appearance_char >> 8};
     status = aci_gatt_update_char_value(

firmware/targets/f7/ble_glue/services/hid_service.c

@@ -22,6 +22,10 @@ typedef struct {
 
 static_assert(sizeof(HidSvcReportId) == sizeof(uint16_t), "HidSvcReportId must be 2 bytes");
 
+static const Service_UUID_t hid_svc_uuid = {
+    .Service_UUID_16 = HUMAN_INTERFACE_DEVICE_SERVICE_UUID,
+};
+
 static bool
     hid_svc_char_desc_data_callback(const void* context, const uint8_t** data, uint16_t* data_len) {
     const HidSvcReportId* report_id = context;
@@ -148,18 +152,15 @@ static SVCCTL_EvtAckStatus_t hid_svc_event_handler(void* event) {
 void hid_svc_start() {
     tBleStatus status;
     hid_svc = malloc(sizeof(HIDSvc));
-    Service_UUID_t svc_uuid = {};
 
     // Register event handler
     SVCCTL_RegisterSvcHandler(hid_svc_event_handler);
-    // Add service
-    svc_uuid.Service_UUID_16 = HUMAN_INTERFACE_DEVICE_SERVICE_UUID;
     /**
      *  Add Human Interface Device Service
      */
     status = aci_gatt_add_service(
         UUID_TYPE_16,
-        &svc_uuid,
+        &hid_svc_uuid,
         PRIMARY_SERVICE,
         2 + /* protocol mode */
             (4 * HID_SVC_INPUT_REPORT_COUNT) + (3 * HID_SVC_OUTPUT_REPORT_COUNT) +
@@ -170,10 +171,12 @@ void hid_svc_start() {
         FURI_LOG_E(TAG, "Failed to add HID service: %d", status);
     }
 
-    for(size_t i = 0; i < HidSvcGattCharacteristicCount; i++) {
+    // Maintain previously defined characteristic order
-        flipper_gatt_characteristic_init(
+    flipper_gatt_characteristic_init(
-            hid_svc->svc_handle, &hid_svc_chars[i], &hid_svc->chars[i]);
+        hid_svc->svc_handle,
-    }
+        &hid_svc_chars[HidSvcGattCharacteristicProtocolMode],
+        &hid_svc->chars[HidSvcGattCharacteristicProtocolMode]);
+
     uint8_t protocol_mode = 1;
     flipper_gatt_characteristic_update(
         hid_svc->svc_handle,
@@ -215,6 +218,12 @@ void hid_svc_start() {
                 &hid_report_chars[report_type_idx].chars[report_idx]);
         }
     }
+
+    // Setup remaining characteristics
+    for(size_t i = HidSvcGattCharacteristicReportMap; i < HidSvcGattCharacteristicCount; i++) {
+        flipper_gatt_characteristic_init(
+            hid_svc->svc_handle, &hid_svc_chars[i], &hid_svc->chars[i]);
+    }
 }
 
 bool hid_svc_update_report_map(const uint8_t* data, uint16_t len) {

firmware/targets/f7/ble_glue/services/serial_service.c

@@ -10,24 +10,14 @@
 #define TAG "BtSerialSvc"
 
 typedef enum {
-    SerialSvcGattCharacteristicTx = 0,
+    SerialSvcGattCharacteristicRx = 0,
-    SerialSvcGattCharacteristicRx,
+    SerialSvcGattCharacteristicTx,
     SerialSvcGattCharacteristicFlowCtrl,
     SerialSvcGattCharacteristicStatus,
     SerialSvcGattCharacteristicCount,
 } SerialSvcGattCharacteristicId;
 
 static const FlipperGattCharacteristicParams serial_svc_chars[SerialSvcGattCharacteristicCount] = {
-    [SerialSvcGattCharacteristicTx] =
-        {.name = "TX",
-         .data_prop_type = FlipperGattCharacteristicDataFixed,
-         .data.fixed.length = SERIAL_SVC_DATA_LEN_MAX,
-         .uuid.Char_UUID_128 = SERIAL_SVC_TX_CHAR_UUID,
-         .uuid_type = UUID_TYPE_128,
-         .char_properties = CHAR_PROP_READ | CHAR_PROP_INDICATE,
-         .security_permissions = ATTR_PERMISSION_AUTHEN_READ,
-         .gatt_evt_mask = GATT_DONT_NOTIFY_EVENTS,
-         .is_variable = CHAR_VALUE_LEN_VARIABLE},
     [SerialSvcGattCharacteristicRx] =
         {.name = "RX",
          .data_prop_type = FlipperGattCharacteristicDataFixed,
@@ -38,6 +28,16 @@ static const FlipperGattCharacteristicParams serial_svc_chars[SerialSvcGattChara
          .security_permissions = ATTR_PERMISSION_AUTHEN_READ | ATTR_PERMISSION_AUTHEN_WRITE,
          .gatt_evt_mask = GATT_NOTIFY_ATTRIBUTE_WRITE,
          .is_variable = CHAR_VALUE_LEN_VARIABLE},
+    [SerialSvcGattCharacteristicTx] =
+        {.name = "TX",
+         .data_prop_type = FlipperGattCharacteristicDataFixed,
+         .data.fixed.length = SERIAL_SVC_DATA_LEN_MAX,
+         .uuid.Char_UUID_128 = SERIAL_SVC_TX_CHAR_UUID,
+         .uuid_type = UUID_TYPE_128,
+         .char_properties = CHAR_PROP_READ | CHAR_PROP_INDICATE,
+         .security_permissions = ATTR_PERMISSION_AUTHEN_READ,
+         .gatt_evt_mask = GATT_DONT_NOTIFY_EVENTS,
+         .is_variable = CHAR_VALUE_LEN_VARIABLE},
     [SerialSvcGattCharacteristicFlowCtrl] =
         {.name = "Flow control",
          .data_prop_type = FlipperGattCharacteristicDataFixed,