Component/bt: add ble link timeout config in menuconfig

- add ble link timeout config in menuconfig
- disable background connection when call gatts_open

components/bt/Kconfig

@@ -1263,6 +1263,16 @@ menu Bluetooth
             Bluedroid will report adv data or scan response to application layer immediately.
 
             # Memory reserved at start of DRAM for Bluetooth stack
+
+    config BLE_ESTABLISH_LINK_CONNECTION_TIMEOUT
+        int "Timeout of BLE connection establishment"
+        depends on BLUEDROID_ENABLED
+        range 1 60
+        default 30
+        help
+            Bluetooth Connection establishment maximum time, if connection time exceeds this value, the connection
+            establishment fails, ESP_GATTC_OPEN_EVT or ESP_GATTS_OPEN_EVT is triggered.
+
     config BT_RESERVE_DRAM
         hex
         default 0xdb5c if BT_ENABLED

components/bt/bluedroid/btc/profile/std/gatt/btc_gatts.c

@@ -715,10 +715,13 @@ void btc_gatts_call_handler(btc_msg_t *msg)
 #else
         //BTA_DmAddBleDevice(p_cb->bd_addr.address, addr_type, device_type);
 #endif
+        /*
+         not support background connection
         // Mark background connections
         if (!arg->open.is_direct) {
             BTA_DmBleSetBgConnType(BTM_BLE_CONN_AUTO, NULL);
         }
+        */
 
         transport = BTA_GATT_TRANSPORT_LE;
 

components/bt/bluedroid/common/include/common/bt_target.h

@@ -166,6 +166,12 @@
 #define GATT_MAX_PHY_CHANNEL CONFIG_BT_ACL_CONNECTIONS
 #endif  /* CONFIG_BT_ACL_CONNECTIONS */
 
+#if(CONFIG_BLE_ESTABLISH_LINK_CONNECTION_TIMEOUT)
+#define BLE_ESTABLISH_LINK_CONNECTION_TIMEOUT CONFIG_BLE_ESTABLISH_LINK_CONNECTION_TIMEOUT
+#else
+#define BLE_ESTABLISH_LINK_CONNECTION_TIMEOUT 30
+#endif
+
 //------------------Added from bdroid_buildcfg.h---------------------
 #ifndef L2CAP_EXTFEA_SUPPORTED_MASK
 #define L2CAP_EXTFEA_SUPPORTED_MASK (L2CAP_EXTFEA_ENH_RETRANS | L2CAP_EXTFEA_STREAM_MODE | L2CAP_EXTFEA_NO_CRC | L2CAP_EXTFEA_FIXED_CHNLS)

components/bt/bluedroid/stack/btm/btm_ble.c

@@ -2006,9 +2006,18 @@ void btm_ble_conn_complete(UINT8 *p, UINT16 evt_len, BOOLEAN enhanced)
             btm_ble_disable_resolving_list(BTM_BLE_RL_ADV, TRUE);
 #endif
         }
+
     }
 
-    btm_ble_update_mode_operation(role, bda, status);
+    BOOLEAN bg_con = btm_ble_update_mode_operation(role, bda, status);
+    if (status != HCI_SUCCESS && !bg_con) {
+        // notify connection failed
+        l2c_link_hci_disc_comp (handle, status);
+#if (SMP_INCLUDED == TRUE)
+        /* Notify security manager */
+        btm_sec_disconnected (handle, status);
+#endif  ///SMP_INCLUDED == TRUE
+    }
 }
 
 

components/bt/bluedroid/stack/btm/btm_ble_gap.c

@@ -4229,8 +4229,9 @@ void btm_ble_update_link_topology_mask(UINT8 link_role, BOOLEAN increase)
 ** Returns          void
 **
 *******************************************************************************/
-void btm_ble_update_mode_operation(UINT8 link_role, BD_ADDR bd_addr, UINT8 status)
+BOOLEAN btm_ble_update_mode_operation(UINT8 link_role, BD_ADDR bd_addr, UINT8 status)
 {
+    BOOLEAN bg_con = FALSE;
     if (status == HCI_ERR_DIRECTED_ADVERTISING_TIMEOUT) {
         btm_cb.ble_ctr_cb.inq_var.adv_mode  = BTM_BLE_ADV_DISABLE;
         /* make device fall back into undirected adv mode by default */
@@ -4249,8 +4250,10 @@ void btm_ble_update_mode_operation(UINT8 link_role, BD_ADDR bd_addr, UINT8 statu
        now in order */
     if (btm_ble_get_conn_st() == BLE_CONN_IDLE && status != HCI_ERR_HOST_REJECT_RESOURCES &&
             !btm_send_pending_direct_conn()) {
-        btm_ble_resume_bg_conn();
+        bg_con = btm_ble_resume_bg_conn();
     }
+
+    return bg_con;
 }
 
 /*******************************************************************************

components/bt/bluedroid/stack/btm/include/btm_ble_int.h

@@ -449,7 +449,7 @@ BOOLEAN btm_ble_start_auto_conn(BOOLEAN start);
 BOOLEAN btm_ble_start_select_conn(BOOLEAN start, tBTM_BLE_SEL_CBACK   *p_select_cback);
 BOOLEAN btm_ble_renew_bg_conn_params(BOOLEAN add, BD_ADDR bd_addr);
 void btm_write_dir_conn_wl(BD_ADDR target_addr);
-void btm_ble_update_mode_operation(UINT8 link_role, BD_ADDR bda, UINT8 status);
+BOOLEAN btm_ble_update_mode_operation(UINT8 link_role, BD_ADDR bda, UINT8 status);
 BOOLEAN btm_execute_wl_dev_operation(void);
 void btm_ble_update_link_topology_mask(UINT8 role, BOOLEAN increase);
 

components/bt/bluedroid/stack/l2cap/include/l2c_int.h

@@ -66,7 +66,7 @@
 #define L2CAP_WAIT_UNPARK_TOUT       2            /* 2 seconds */
 #define L2CAP_LINK_INFO_RESP_TOUT    2            /* 2 seconds */
 #define L2CAP_UPDATE_CONN_PARAM_TOUT 6            /* 6 seconds */
-#define L2CAP_BLE_LINK_CONNECT_TOUT  30           /* 30 seconds */
+#define L2CAP_BLE_LINK_CONNECT_TOUT  BLE_ESTABLISH_LINK_CONNECTION_TIMEOUT  // configed in menuconfig
 #define L2CAP_BLE_CONN_PARAM_UPD_TOUT   30        /* 30 seconds */
 
 /* quick timer uses millisecond unit */