Merge branch 'bugfix/btdm_fix_multi-con_pair_failed_and_cancle_con_state_err_v4.0' into 'release/v4.0'

fix multi con pair failed and cancel con state error (backport v4.0)

See merge request espressif/esp-idf!13477

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

@@ -2032,6 +2032,30 @@ void btm_ble_create_ll_conn_complete (UINT8 status)
         btm_ble_update_mode_operation(HCI_ROLE_UNKNOWN, NULL, status);
     }
 }
+
+/*****************************************************************************
+** Function btm_ble_create_conn_cancel_complete
+**
+** Description LE connection cancel complete.
+**
+******************************************************************************/
+void btm_ble_create_conn_cancel_complete (UINT8 *p)
+{
+    UINT8       status;
+
+    STREAM_TO_UINT8 (status, p);
+
+    switch (status) {
+    case HCI_SUCCESS:
+        if (btm_ble_get_conn_st() == BLE_CONN_CANCEL) {
+            btm_ble_set_conn_st (BLE_CONN_IDLE);
+        }
+        break;
+    default:
+        break;
+    }
+}
+
 /*****************************************************************************
 **  Function        btm_proc_smp_cback
 **

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

@@ -403,6 +403,7 @@ tBTM_STATUS btm_ble_start_adv(void);
 tBTM_STATUS btm_ble_stop_adv(void);
 tBTM_STATUS btm_ble_start_scan(void);
 void btm_ble_create_ll_conn_complete (UINT8 status);
+void btm_ble_create_conn_cancel_complete (UINT8 *p);
 
 /* LE security function from btm_sec.c */
 #if SMP_INCLUDED == TRUE

components/bt/host/bluedroid/stack/btu/btu_hcif.c

@@ -973,6 +973,9 @@ static void btu_hcif_hdl_command_complete (UINT16 opcode, UINT8 *p, UINT16 evt_l
     case HCI_BLE_TEST_END:
         btm_ble_test_command_complete(p);
         break;
+    case HCI_BLE_CREATE_CONN_CANCEL:
+        btm_ble_create_conn_cancel_complete(p);
+        break;
 
 #if (defined BLE_PRIVACY_SPT && BLE_PRIVACY_SPT == TRUE)
     case HCI_BLE_ADD_DEV_RESOLVING_LIST:

components/bt/host/bluedroid/stack/l2cap/l2c_api.c

@@ -1835,7 +1835,7 @@ UINT16 L2CA_SendFixedChnlData (UINT16 fixed_cid, BD_ADDR rem_bda, BT_HDR *p_buf)
     }
 
     // If already congested, do not accept any more packets
-    if (p_lcb->p_fixed_ccbs[fixed_cid - L2CAP_FIRST_FIXED_CHNL]->cong_sent) {
+    if (p_lcb->p_fixed_ccbs[fixed_cid - L2CAP_FIRST_FIXED_CHNL]->cong_sent && fixed_cid != L2CAP_SMP_CID) {
         L2CAP_TRACE_DEBUG ("L2CAP - CID: 0x%04x cannot send, already congested\
             xmit_hold_q.count: %u buff_quota: %u", fixed_cid,
             fixed_queue_length(p_lcb->p_fixed_ccbs[fixed_cid - L2CAP_FIRST_FIXED_CHNL]->xmit_hold_q),