text: // Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
  //
  // Licensed under the Apache License, Version 2.0 (the "License");
  // you may not use this file except in compliance with the License.
  // You may obtain a copy of the License at
  
  //     http://www.apache.org/licenses/LICENSE-2.0
  //
  // Unless required by applicable law or agreed to in writing, software
  // distributed under the License is distributed on an "AS IS" BASIS,
  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  // See the License for the specific language governing permissions and
  // limitations under the License.
  
  #ifndef __BTC_TASK_H__
  #define __BTC_TASK_H__
  
  #include <stdint.h>
  #include "bt_common.h"
  #include "osi/thread.h"
  
  #if CONFIG_BT_BLUEDROID_ENABLED
  #include "common/bt_target.h"
  #endif
  
  typedef struct btc_msg {
      uint8_t sig;    //event signal
      uint8_t aid;    //application id
      uint8_t pid;    //profile id
      uint8_t act;    //profile action, defined in seprerate header files
      void   *arg;    //param for btc function or function param
  } btc_msg_t;
  
  typedef struct btc_adv_packet {
      uint8_t addr[6];
      uint8_t addr_type;
  } btc_adv_packet_t;
  
  typedef enum {
      BTC_SIG_API_CALL = 0,   // APP TO STACK
      BTC_SIG_API_CB,         // STACK TO APP
      BTC_SIG_NUM,
  } btc_sig_t; //btc message type
  
  typedef enum {
      BTC_PID_MAIN_INIT = 0,
      BTC_PID_DEV,
      BTC_PID_GATTS,
  #if (GATTC_INCLUDED == TRUE)
      BTC_PID_GATTC,
  #endif  ///GATTC_INCLUDED == TRUE
      BTC_PID_GATT_COMMON,
      BTC_PID_GAP_BLE,
      BTC_PID_BLE_HID,
      BTC_PID_SPPLIKE,
      BTC_PID_BLUFI,
      BTC_PID_DM_SEC,
      BTC_PID_ALARM,
  #if (CLASSIC_BT_INCLUDED == TRUE)
      BTC_PID_GAP_BT,
      BTC_PID_PRF_QUE,
      BTC_PID_A2DP,
      BTC_PID_AVRC_CT,
      BTC_PID_AVRC_TG,
      BTC_PID_SPP,
  #if (BTC_HF_CLIENT_INCLUDED == TRUE)
      BTC_PID_HF_CLIENT,
  #endif /* BTC_HF_CLIENT_INCLUDED */
  #endif  /* CLASSIC_BT_INCLUDED */
  #if CONFIG_BLE_MESH
      BTC_PID_PROV,
      BTC_PID_MODEL,
      BTC_PID_HEALTH_CLIENT,
      BTC_PID_HEALTH_SERVER,
      BTC_PID_CONFIG_CLIENT,
      BTC_PID_CONFIG_SERVER,
      BTC_PID_GENERIC_CLIENT,
      BTC_PID_LIGHTING_CLIENT,
      BTC_PID_SENSOR_CLIENT,
      BTC_PID_TIME_SCENE_CLIENT,
      BTC_PID_GENERIC_SERVER,
      BTC_PID_LIGHTING_SERVER,
      BTC_PID_SENSOR_SERVER,
      BTC_PID_TIME_SCENE_SERVER,
  #endif /* CONFIG_BLE_MESH */
      BTC_PID_NUM,
  } btc_pid_t; //btc profile id
  
  typedef struct {
      void (* btc_call)(btc_msg_t *msg);
      void (* btc_cb)(btc_msg_t *msg);
  } btc_func_t;
  
  typedef void (* btc_arg_deep_copy_t)(btc_msg_t *msg, void *dst, void *src);
  
  /**
   * transfer an message to another module in the different task.
   * @param  msg       message
   * @param  arg       paramter
   * @param  arg_len   length of paramter
   * @param  copy_func deep copy function
   * @return           BT_STATUS_SUCCESS: success
   *                   others: fail
   */
  bt_status_t btc_transfer_context(btc_msg_t *msg, void *arg, int arg_len, btc_arg_deep_copy_t copy_func);
  
  /**
   * transfer an message to another module in tha same task.
   * @param  msg       message
   * @param  arg       paramter
   * @return           BT_STATUS_SUCCESS: success
   *                   others: fail
   */
  bt_status_t btc_inter_profile_call(btc_msg_t *msg, void *arg);
  
  bt_status_t btc_init(void);
  void btc_deinit(void);
  bool btc_check_queue_is_congest(void);
  int get_btc_work_queue_size(void);
  
  #endif /* __BTC_TASK_H__ */
  