text: /*----------------------------------------------------------------------------
   * Copyright (c) <2016-2018>, <Huawei Technologies Co., Ltd>
   * All rights reserved.
   * Redistribution and use in source and binary forms, with or without modification,
   * are permitted provided that the following conditions are met:
   * 1. Redistributions of source code must retain the above copyright notice, this list of
   * conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright notice, this list
   * of conditions and the following disclaimer in the documentation and/or other materials
   * provided with the distribution.
   * 3. Neither the name of the copyright holder nor the names of its contributors may be used
   * to endorse or promote products derived from this software without specific prior written
   * permission.
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
   * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
   * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
   * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
   * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
   * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
   * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
   * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
   * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   *---------------------------------------------------------------------------*/
  /*----------------------------------------------------------------------------
   * Notice of Export Control Law
   * ===============================================
   * Huawei LiteOS may be subject to applicable export control laws and regulations, which might
   * include those applicable to Huawei LiteOS of U.S. and the country in which you are located.
   * Import, export and usage of Huawei LiteOS in any manner by you shall be in compliance with such
   * applicable export control laws and regulations.
   *---------------------------------------------------------------------------*/
  
  #if defined(WITH_AT_FRAMEWORK)
  #include "nb_iot/los_nb_api.h"
  #include "at_frame/at_api.h"
  //#include "atiny_socket.h"
  #include "at_device/bc95.h"
  
  int los_nb_init(const int8_t *host, const int8_t *port, sec_param_s *psk)
  {
      int ret;
      int timecnt = 0;
      // if(port == NULL)
      // return -1;
      /*when used nb with agenttiny*/
      /*the following para is replaced by call nb_int()*/
      at_config at_user_conf = {
          .name         = AT_MODU_NAME,
          .usart_port   = AT_USART_PORT,
          .buardrate    = AT_BUARDRATE,
          .linkid_num   = AT_MAX_LINK_NUM,
          .user_buf_len = MAX_AT_USERDATA_LEN,
          .cmd_begin    = AT_CMD_BEGIN,
          .line_end     = AT_LINE_END,
          .mux_mode     = 1,                 // support multi connection mode
          .timeout      = AT_CMD_TIMEOUT,    //  ms
      };
  
      at.init(&at_user_conf);
  
      nb_reboot();
      // LOS_TaskDelay(2000);
      if (psk != NULL)    // encryption v1.9
      {
          if (psk->setpsk)
              nb_send_psk(psk->pskid, psk->psk);
          else
              nb_set_no_encrypt();
      }
  
      while (1)
      {
          ret = nb_hw_detect();
          printf("call nb_hw_detect,ret is %d\n", ret);
          if (ret == AT_OK)
              break;
          // LOS_TaskDelay(1000);
      }
      // nb_get_auto_connect();
      // nb_connect(NULL, NULL, NULL);
  
      while (timecnt < 120)
      {
          ret = nb_get_netstat();
          nb_check_csq();
          if (ret != AT_FAILED)
          {
              ret = nb_query_ip();
              break;
          }
          // LOS_TaskDelay(1000);
          timecnt++;
      }
      if (ret != AT_FAILED)
      {
          nb_query_ip();
      }
      ret = nb_set_cdpserver((char *)host, (char *)port);
      return ret;
  }
  
  int los_nb_report(const char *buf, int len)
  {
      if (buf == NULL || len <= 0)
          return -1;
      return nb_send_payload(buf, len);
  }
  
  int los_nb_notify(char *featurestr, int cmdlen, oob_callback callback, oob_cmd_match cmd_match)
  {
      if (featurestr == NULL || cmdlen <= 0 || cmdlen >= OOB_CMD_LEN - 1)
          return -1;
      return at.oob_register(featurestr, cmdlen, callback, cmd_match);
  }
  
  int los_nb_deinit(void)
  {
      nb_reboot();
      at.deinit();
      return 0;
  }
  
  #endif
  