pinebuds/services/ble_profiles/cpp/cppc/src/cppc_task.c

/**
 ****************************************************************************************
 * @addtogroup CPPCTASK
 * @{
 ****************************************************************************************
 */

/*
 * INCLUDE FILES
 ****************************************************************************************
 */

#include "rwip_config.h"

#if (BLE_CP_COLLECTOR)
#include "cpp_common.h"
#include "cppc.h"
#include "cppc_task.h"

#include "gap.h"
#include "gattc_task.h"

#include "ke_mem.h"
#include "ke_timer.h"

#include "co_utils.h"

/*
 * STRUCTURES
 ****************************************************************************************
 */

/// State machine used to retrieve Cycling Power service characteristics
/// information
const struct prf_char_def cppc_cps_char[CPP_CPS_CHAR_MAX] = {
    /// CP Measurement
    [CPP_CPS_MEAS_CHAR] = {ATT_CHAR_CP_MEAS, ATT_MANDATORY, ATT_CHAR_PROP_NTF},
    /// CP Feature
    [CPP_CPS_FEAT_CHAR] = {ATT_CHAR_CP_FEAT, ATT_MANDATORY, ATT_CHAR_PROP_RD},
    /// Sensor Location
    [CPP_CPS_SENSOR_LOC_CHAR] = {ATT_CHAR_SENSOR_LOC, ATT_MANDATORY,
                                 ATT_CHAR_PROP_RD},
    /// Vector
    [CPP_CPS_VECTOR_CHAR] = {ATT_CHAR_CP_VECTOR, ATT_OPTIONAL,
                             ATT_CHAR_PROP_NTF},
    /// SC Control Point
    [CPP_CPS_CTNL_PT_CHAR] = {ATT_CHAR_CP_CNTL_PT, ATT_OPTIONAL,
                              ATT_CHAR_PROP_WR | ATT_CHAR_PROP_IND},
};

/// State machine used to retrieve Cycling Power service characteristic
/// descriptor information
const struct prf_char_desc_def cppc_cps_char_desc[CPPC_DESC_MAX] = {
    /// CP Measurement Char. - Client Characteristic Configuration
    [CPPC_DESC_CP_MEAS_CL_CFG] = {ATT_DESC_CLIENT_CHAR_CFG, ATT_MANDATORY,
                                  CPP_CPS_MEAS_CHAR},

    /// CP Measurement Char. - Server Characteristic Configuration
    [CPPC_DESC_CP_MEAS_SV_CFG] = {ATT_DESC_SERVER_CHAR_CFG, ATT_OPTIONAL,
                                  CPP_CPS_MEAS_CHAR},

    /// CP Vector Char. - Client Characteristic Configuration
    [CPPC_DESC_VECTOR_CL_CFG] = {ATT_DESC_CLIENT_CHAR_CFG, ATT_OPTIONAL,
                                 CPP_CPS_VECTOR_CHAR},

    /// Control Point Char. - Client Characteristic Configuration
    [CPPC_DESC_CTNL_PT_CL_CFG] = {ATT_DESC_CLIENT_CHAR_CFG, ATT_OPTIONAL,
                                  CPP_CPS_CTNL_PT_CHAR},
};

/*
 * HANDLER FUNCTIONS DEFINITIONS
 ****************************************************************************************
 */

/**
 ****************************************************************************************
 * @brief Handles reception of the @ref CPPC_ENABLE_REQ message.
 * @param[in] msgid Id of the message received.
 * @param[in] param Pointer to the parameters of the message.
 * @param[in] dest_id ID of the receiving task instance.
 * @param[in] src_id ID of the sending task instance.
 * @return If the message was consumed or not.
 ****************************************************************************************
 */
__STATIC int cppc_enable_req_handler(ke_msg_id_t const msgid,
                                     struct cppc_enable_req *param,
                                     ke_task_id_t const dest_id,
                                     ke_task_id_t const src_id) {
  // Status
  uint8_t status = GAP_ERR_NO_ERROR;
  // Get connection index
  uint8_t conidx = KE_IDX_GET(dest_id);

  uint8_t state = ke_state_get(dest_id);
  // Cycling Power Profile Collector Role Task Environment
  struct cppc_env_tag *cppc_env = PRF_ENV_GET(CPPC, cppc);

  ASSERT_INFO(cppc_env != NULL, dest_id, src_id);
  if ((state == CPPC_IDLE) && (cppc_env->env[conidx] == NULL)) {
    // allocate environment variable for task instance
    cppc_env->env[conidx] = (struct cppc_cnx_env *)ke_malloc(
        sizeof(struct cppc_cnx_env), KE_MEM_ATT_DB);
    memset(cppc_env->env[conidx], 0, sizeof(struct cppc_cnx_env));

    // Config connection, start discovering
    if (param->con_type == PRF_CON_DISCOVERY) {
      // start discovering CPS on peer
      prf_disc_svc_send(&(cppc_env->prf_env), conidx, ATT_SVC_CYCLING_POWER);

      // Go to DISCOVERING state
      ke_state_set(dest_id, CPPC_DISCOVERING);
    }
    // normal connection, get saved att details
    else {
      cppc_env->env[conidx]->cps = param->cps;

      // send APP confirmation that can start normal connection to TH
      cppc_enable_rsp_send(cppc_env, conidx, GAP_ERR_NO_ERROR);
    }
  }

  else if (state != CPPC_FREE) {
    status = PRF_ERR_REQ_DISALLOWED;
  }

  // send an error if request fails
  if (status != GAP_ERR_NO_ERROR) {
    cppc_enable_rsp_send(cppc_env, conidx, status);
  }

  return (KE_MSG_CONSUMED);
}

/**
 ****************************************************************************************
 * @brief Handles reception of the @ref CPPC_READ_CMD message.
 * @param[in] msgid Id of the message received.
 * @param[in] param Pointer to the parameters of the message.
 * @param[in] dest_id ID of the receiving task instance.
 * @param[in] src_id ID of the sending task instance.
 * @return If the message was consumed or not.
 ****************************************************************************************
 */
__STATIC int cppc_read_req_handler(ke_msg_id_t const msgid,
                                   struct cpps_read_cmd *param,
                                   ke_task_id_t const dest_id,
                                   ke_task_id_t const src_id) {
  uint8_t state = ke_state_get(dest_id);
  uint8_t status = PRF_ERR_REQ_DISALLOWED;
  // Message status
  uint8_t msg_status = KE_MSG_CONSUMED;
  // Get the address of the environment
  struct cppc_env_tag *cppc_env = PRF_ENV_GET(CPPC, cppc);
  // Get connection index
  uint8_t conidx = KE_IDX_GET(dest_id);

  if (state == CPPC_IDLE) {
    ASSERT_INFO(cppc_env != NULL, dest_id, src_id);
    // environment variable not ready
    if (cppc_env->env[conidx] == NULL) {
      status = PRF_APP_ERROR;
    } else {
      // Get the handler
      uint16_t hdl = cppc_get_read_handle_req(cppc_env, conidx, param);

      // Check if handle is viable
      if (hdl != ATT_INVALID_SEARCH_HANDLE) {
        // Force the operation value
        param->operation = CPPC_READ_OP_CODE;

        // Store the command structure
        cppc_env->env[conidx]->operation = param;
        msg_status = KE_MSG_NO_FREE;

        // Send the read request
        prf_read_char_send(&(cppc_env->prf_env), conidx,
                           cppc_env->env[conidx]->cps.svc.shdl,
                           cppc_env->env[conidx]->cps.svc.ehdl, hdl);

        // Go to the Busy state
        ke_state_set(dest_id, CPPC_BUSY);

        status = ATT_ERR_NO_ERROR;
      } else {
        status = PRF_ERR_INEXISTENT_HDL;
      }
    }
  } else if (state == CPPC_FREE) {
    status = GAP_ERR_DISCONNECTED;
  } else {
    // Another procedure is pending, keep the command for later
    msg_status = KE_MSG_SAVED;
    status = GAP_ERR_NO_ERROR;
  }

  if (status != GAP_ERR_NO_ERROR) {
    // Send the complete event message to the task id stored in the environment
    cppc_send_cmp_evt(cppc_env, conidx, CPPC_READ_OP_CODE, status);
  }

  return (int)msg_status;
}

/**
 ****************************************************************************************
 * @brief Handles reception of the @ref CPPC_CFG_NTFIND_CMD message.
 * @param[in] msgid Id of the message received.
 * @param[in] param Pointer to the parameters of the message.
 * @param[in] dest_id ID of the receiving task instance.
 * @param[in] src_id ID of the sending task instance.
 * @return If the message was consumed or not.
 ****************************************************************************************
 */
__STATIC int cppc_cfg_ntfind_cmd_handler(ke_msg_id_t const msgid,
                                         struct cppc_cfg_ntfind_cmd *param,
                                         ke_task_id_t const dest_id,
                                         ke_task_id_t const src_id) {
  // Get the address of the environment
  struct cppc_env_tag *cppc_env = PRF_ENV_GET(CPPC, cppc);

  uint8_t state = ke_state_get(dest_id);
  // Message status
  uint8_t msg_status = KE_MSG_CONSUMED;

  if (cppc_env != NULL) {
    // Status
    uint8_t status = PRF_ERR_REQ_DISALLOWED;
    // Handle
    uint16_t handle = ATT_INVALID_SEARCH_HANDLE;
    // Get connection index
    uint8_t conidx = KE_IDX_GET(dest_id);

    do {
      if (state != CPPC_IDLE) {
        // Another procedure is pending, keep the command for later
        msg_status = KE_MSG_SAVED;
        break;
      }

      ASSERT_ERR(cppc_env->env[conidx] != NULL);

      // Get handle
      status = cppc_get_write_desc_handle_req(conidx, param, cppc_env, &handle);
    } while (0);

    if ((status == GAP_ERR_NO_ERROR) && (handle != ATT_INVALID_SEARCH_HANDLE)) {
      // Set the operation code
      param->operation = CPPC_CFG_NTF_IND_OP_CODE;

      // Store the command structure
      cppc_env->env[conidx]->operation = param;
      msg_status = KE_MSG_NO_FREE;

      // Go to the Busy state
      ke_state_set(dest_id, CPPC_BUSY);

      // Send GATT Write Request
      prf_gatt_write_ntf_ind(&cppc_env->prf_env, conidx, handle,
                             param->ntfind_cfg);
    }
  } else {
    cppc_send_no_conn_cmp_evt(dest_id, src_id, CPPC_CFG_NTF_IND_OP_CODE);
  }

  return (int)msg_status;
}

/**
 ****************************************************************************************
 * @brief Handles reception of the @ref CPPC_CTNL_PT_CFG_REQ message.
 * @param[in] msgid Id of the message received.
 * @param[in] param Pointer to the parameters of the message.
 * @param[in] dest_id ID of the receiving task instance.
 * @param[in] src_id ID of the sending task instance.
 * @return If the message was consumed or not.
 ****************************************************************************************
 */
__STATIC int cppc_ctnl_pt_cfg_req_handler(ke_msg_id_t const msgid,
                                          struct cppc_ctnl_pt_cfg_req *param,
                                          ke_task_id_t const dest_id,
                                          ke_task_id_t const src_id) {
  // Message status
  uint8_t msg_status = KE_MSG_CONSUMED;
  // Get the address of the environment
  struct cppc_env_tag *cppc_env = PRF_ENV_GET(CPPC, cppc);
  // Get connection index
  uint8_t conidx = KE_IDX_GET(dest_id);

  if (cppc_env != NULL) {
    // Status
    uint8_t status = GAP_ERR_NO_ERROR;

    do {
      // State is Connected or Busy
      ASSERT_ERR(ke_state_get(dest_id) > CPPC_FREE);
      // Check the provided connection handle
      if (cppc_env->env[conidx] == NULL) {
        status = PRF_ERR_INVALID_PARAM;
        break;
      }

      if (ke_state_get(dest_id) != CPPC_IDLE) {
        // Another procedure is pending, keep the command for later
        msg_status = KE_MSG_SAVED;
        // Status is GAP_ERR_NO_ERROR, no message will be sent to the
        // application
        break;
      }

      // Check if the characteristic has been found
      if (cppc_env->env[conidx]->cps.descs[CPPC_DESC_CTNL_PT_CL_CFG].desc_hdl !=
          ATT_INVALID_SEARCH_HANDLE) {
        // Request array declaration
        uint8_t req[CPP_CP_CNTL_PT_REQ_MAX_LEN];
        // Pack request
        uint8_t nb = cppc_pack_ctnl_pt_req(param, req, &status);

        if (status == GAP_ERR_NO_ERROR) {
          // Set the operation code
          param->operation = CPPC_CTNL_PT_CFG_WR_OP_CODE;

          // Store the command structure
          cppc_env->env[conidx]->operation = param;
          // Store the command information
          msg_status = KE_MSG_NO_FREE;

          // Go to the Busy state
          ke_state_set(dest_id, CPPC_BUSY);

          // Send the write request
          prf_gatt_write(
              &(cppc_env->prf_env), conidx,
              cppc_env->env[conidx]->cps.chars[CPP_CPS_CTNL_PT_CHAR].val_hdl,
              (uint8_t *)&req[0], nb, GATTC_WRITE);
        }
      } else {
        status = PRF_ERR_INEXISTENT_HDL;
      }
    } while (0);

    if (status != GAP_ERR_NO_ERROR) {
      // Send a complete event status to the application
      cppc_send_cmp_evt(cppc_env, conidx, CPPC_CTNL_PT_CFG_WR_OP_CODE, status);
    }
  } else {
    // No connection
    cppc_send_no_conn_cmp_evt(dest_id, src_id, CPPC_CTNL_PT_CFG_WR_OP_CODE);
  }

  return (int)msg_status;
}

/**
 ****************************************************************************************
 * @brief Handles reception of the @ref CPPC_TIMEOUT_TIMER_IND message. This
 *message is received when the peer device doesn't send a SC Control Point
 *indication within 30s after reception of the write response.
 * @param[in] msgid Id of the message received.
 * @param[in] param Pointer to the parameters of the message.
 * @param[in] dest_id ID of the receiving task instance.
 * @param[in] src_id ID of the sending task instance.
 * @return If the message was consumed or not.
 ****************************************************************************************
 */
__STATIC int cppc_timeout_timer_ind_handler(ke_msg_id_t const msgid,
                                            void const *param,
                                            ke_task_id_t const dest_id,
                                            ke_task_id_t const src_id) {
  // Get the address of the environment
  struct cppc_env_tag *cppc_env = PRF_ENV_GET(CPPC, cppc);
  // Get connection index
  uint8_t conidx = KE_IDX_GET(dest_id);

  if (cppc_env != NULL) {
    ASSERT_ERR(cppc_env->env[conidx]->operation != NULL);
    ASSERT_ERR(
        ((struct cppc_cmd *)cppc_env->env[conidx]->operation)->operation ==
        CPPC_CTNL_PT_CFG_IND_OP_CODE);

    // Send the complete event message
    cppc_send_cmp_evt(cppc_env, conidx, CPPC_CTNL_PT_CFG_WR_OP_CODE,
                      PRF_ERR_PROC_TIMEOUT);
  }
  // else drop the message

  return (KE_MSG_CONSUMED);
}

/**
 ****************************************************************************************
 * @brief Handles reception of the @ref GATTC_SDP_SVC_IND_HANDLER message.
 * The handler stores the found service details for service discovery.
 * @param[in] msgid Id of the message received (probably unused).
 * @param[in] param Pointer to the parameters of the message.
 * @param[in] dest_id ID of the receiving task instance (probably unused).
 * @param[in] src_id ID of the sending task instance.
 * @return If the message was consumed or not.
 ****************************************************************************************
 */
__STATIC int gattc_sdp_svc_ind_handler(ke_msg_id_t const msgid,
                                       struct gattc_sdp_svc_ind const *ind,
                                       ke_task_id_t const dest_id,
                                       ke_task_id_t const src_id) {
  uint8_t state = ke_state_get(dest_id);

  if (state == CPPC_DISCOVERING) {
    uint8_t conidx = KE_IDX_GET(dest_id);

    struct cppc_env_tag *cppc_env = PRF_ENV_GET(CPPC, cppc);

    ASSERT_INFO(cppc_env != NULL, dest_id, src_id);
    ASSERT_INFO(cppc_env->env[conidx] != NULL, dest_id, src_id);

    if (cppc_env->env[conidx]->nb_svc == 0) {
      // Retrieve CPS characteristics and descriptors
      prf_extract_svc_info(ind, CPP_CPS_CHAR_MAX, &cppc_cps_char[0],
                           &cppc_env->env[conidx]->cps.chars[0], CPPC_DESC_MAX,
                           &cppc_cps_char_desc[0],
                           &cppc_env->env[conidx]->cps.descs[0]);

      // Even if we get multiple responses we only store 1 range
      cppc_env->env[conidx]->cps.svc.shdl = ind->start_hdl;
      cppc_env->env[conidx]->cps.svc.ehdl = ind->end_hdl;
    }

    cppc_env->env[conidx]->nb_svc++;
  }

  return (KE_MSG_CONSUMED);
}

/**
 ****************************************************************************************
 * @brief Handles reception of the @ref GATTC_CMP_EVT message.
 * @param[in] msgid Id of the message received.
 * @param[in] param Pointer to the parameters of the message.
 * @param[in] dest_id ID of the receiving task instance.
 * @param[in] src_id ID of the sending task instance.
 * @return If the message was consumed or not.
 ****************************************************************************************
 */
__STATIC int gattc_cmp_evt_handler(ke_msg_id_t const msgid,
                                   struct gattc_cmp_evt const *param,
                                   ke_task_id_t const dest_id,
                                   ke_task_id_t const src_id) {
  // Get the address of the environment
  struct cppc_env_tag *cppc_env = PRF_ENV_GET(CPPC, cppc);
  // Status
  uint8_t status;

  if (cppc_env != NULL) {
    uint8_t conidx = KE_IDX_GET(dest_id);
    uint8_t state = ke_state_get(dest_id);

    if (state == CPPC_DISCOVERING) {
      status = param->status;

      if ((status == ATT_ERR_ATTRIBUTE_NOT_FOUND) ||
          (status == ATT_ERR_NO_ERROR)) {
        // Discovery
        // check characteristic validity
        if (cppc_env->env[conidx]->nb_svc == 1) {
          status = prf_check_svc_char_validity(CPP_CPS_CHAR_MAX,
                                               cppc_env->env[conidx]->cps.chars,
                                               cppc_cps_char);
        }
        // too much services
        else if (cppc_env->env[conidx]->nb_svc > 1) {
          status = PRF_ERR_MULTIPLE_SVC;
        }
        // no services found
        else {
          status = PRF_ERR_STOP_DISC_CHAR_MISSING;
        }

        // check descriptor validity
        if (status == GAP_ERR_NO_ERROR) {
          status = prf_check_svc_char_desc_validity(
              CPPC_DESC_MAX, cppc_env->env[conidx]->cps.descs,
              cppc_cps_char_desc, cppc_env->env[conidx]->cps.chars);
        }
      }

      cppc_enable_rsp_send(cppc_env, conidx, status);
    }

    else if (state == CPPC_BUSY) {
      switch (param->operation) {
      case GATTC_READ: {
        // Send the complete event status
        cppc_send_cmp_evt(cppc_env, conidx, CPPC_READ_OP_CODE, param->status);
      } break;

      case GATTC_WRITE:
      case GATTC_WRITE_NO_RESPONSE: {
        uint8_t operation =
            ((struct cppc_cmd *)cppc_env->env[conidx]->operation)->operation;

        if (operation == CPPC_CFG_NTF_IND_OP_CODE) {
          // Send the complete event status
          cppc_send_cmp_evt(cppc_env, conidx, operation, param->status);
        }

        else if (operation == CPPC_CTNL_PT_CFG_WR_OP_CODE) {
          if (param->status == GAP_ERR_NO_ERROR) {
            // Start Timeout Procedure
            ke_timer_set(CPPC_TIMEOUT_TIMER_IND, dest_id, ATT_TRANS_RTX);

            // Wait for the response indication
            ((struct cppc_cmd *)cppc_env->env[conidx]->operation)->operation =
                CPPC_CTNL_PT_CFG_IND_OP_CODE;
          } else {
            // Send the complete event status
            cppc_send_cmp_evt(cppc_env, conidx, operation, param->status);
          }
        }
      } break;

      case GATTC_REGISTER:
      case GATTC_UNREGISTER: {
        // Do nothing
      } break;

      default: {
        ASSERT_ERR(0);
      } break;
      }
    }
  }
  // else ignore the message

  return (KE_MSG_CONSUMED);
}

/**
 ****************************************************************************************
 * @brief Handles reception of the @ref GATTC_READ_IND message.
 * Generic event received after every simple read command sent to peer server.
 * @param[in] msgid Id of the message received (probably unused).
 * @param[in] param Pointer to the parameters of the message.
 * @param[in] dest_id ID of the receiving task instance (probably unused).
 * @param[in] src_id ID of the sending task instance.
 * @return If the message was consumed or not.
 ****************************************************************************************
 */
__STATIC int gattc_read_ind_handler(ke_msg_id_t const msgid,
                                    struct gattc_read_ind const *param,
                                    ke_task_id_t const dest_id,
                                    ke_task_id_t const src_id) {
  uint8_t state = ke_state_get(dest_id);

  // Get the address of the environment
  struct cppc_env_tag *cppc_env = PRF_ENV_GET(CPPC, cppc);

  if (state == CPPC_BUSY) {
    uint8_t conidx = KE_IDX_GET(dest_id);

    ASSERT_INFO(cppc_env != NULL, dest_id, src_id);
    ASSERT_INFO(cppc_env->env[conidx] != NULL, dest_id, src_id);

    // Send the read value to the HL
    struct cppc_value_ind *ind = KE_MSG_ALLOC(
        CPPC_VALUE_IND, prf_dst_task_get(&(cppc_env->prf_env), conidx), dest_id,
        cppc_value_ind);

    switch (
        ((struct cpps_read_cmd *)cppc_env->env[conidx]->operation)->read_code) {
    // Read CP Feature Characteristic value
    case (CPPC_RD_CP_FEAT): {
      ind->value.sensor_feat = co_read32p(&param->value[0]);

      // Mask the reserved bits
      //                ind->value.sensor_feat &= CPP_FEAT_ALL_SUPP;
    } break;

    // Read Sensor Location Characteristic value
    case (CPPC_RD_SENSOR_LOC): {
      ind->value.sensor_loc = param->value[0];
    } break;

    // Read Client Characteristic Configuration Descriptor value
    case (CPPC_RD_WR_CP_MEAS_CL_CFG):
    case (CPPC_RD_WR_CP_MEAS_SV_CFG):
    case (CPPC_RD_WR_VECTOR_CFG):
    case (CPPC_RD_WR_CTNL_PT_CFG): {
      co_write16p(&ind->value.ntf_cfg, param->value[0]);
    } break;

    default: {
      ASSERT_ERR(0);
    } break;
    }

    ind->att_code =
        ((struct cpps_read_cmd *)cppc_env->env[conidx]->operation)->read_code;

    // Send the message to the application
    ke_msg_send(ind);
  }
  // else drop the message

  return (KE_MSG_CONSUMED);
}

/**
 ****************************************************************************************
 * @brief Handles reception of the @ref GATTC_EVENT_IND message.
 * @param[in] msgid Id of the message received (probably unused).
 * @param[in] param Pointer to the parameters of the message.
 * @param[in] dest_id ID of the receiving task instance (probably unused).
 * @param[in] src_id ID of the sending task instance.
 * @return If the message was consumed or not.
 ****************************************************************************************
 */
__STATIC int gattc_event_ind_handler(ke_msg_id_t const msgid,
                                     struct gattc_event_ind const *param,
                                     ke_task_id_t const dest_id,
                                     ke_task_id_t const src_id) {
  uint8_t conidx = KE_IDX_GET(dest_id);
  // Get the address of the environment
  struct cppc_env_tag *cppc_env = PRF_ENV_GET(CPPC, cppc);

  if (cppc_env != NULL) {
    switch (param->type) {
    case (GATTC_NOTIFY): {

      if (param->handle ==
          cppc_env->env[conidx]->cps.chars[CPP_CPS_MEAS_CHAR].val_hdl) {
        // Unpack measurement
        cppc_unpack_meas_ind(conidx, param, cppc_env);
      } else if (param->handle == cppc_env->env[conidx]
                                      ->cps.chars[CPP_CPS_VECTOR_CHAR]
                                      .val_hdl) {
        // Unpack vector
        cppc_unpack_vector_ind(conidx, param, cppc_env);
      } else {
        ASSERT_ERR(0);
      }
    } break;

    case (GATTC_INDICATE): {
      // confirm that indication has been correctly received
      struct gattc_event_cfm *cfm =
          KE_MSG_ALLOC(GATTC_EVENT_CFM, src_id, dest_id, gattc_event_cfm);
      cfm->handle = param->handle;
      ke_msg_send(cfm);

      // Check if we were waiting for the indication
      if (cppc_env->env[conidx]->operation != NULL) {
        if (((struct cppc_cmd *)cppc_env->env[conidx]->operation)->operation ==
            CPPC_CTNL_PT_CFG_IND_OP_CODE) {
          // Stop the procedure timeout timer
          ke_timer_clear(CPPC_TIMEOUT_TIMER_IND, dest_id);

          // Unpack control point
          cppc_unpack_ctln_pt_ind(conidx, param, cppc_env);

          // Send the complete event message
          cppc_send_cmp_evt(cppc_env, conidx, CPPC_CTNL_PT_CFG_WR_OP_CODE,
                            GAP_ERR_NO_ERROR);
        }
        // else drop the message
      }
      // else drop the message
    } break;

    default: {
      ASSERT_ERR(0);
    } break;
    }
  }

  return (KE_MSG_CONSUMED);
}

/*
 * GLOBAL VARIABLE DEFINITIONS
 ****************************************************************************************
 */

/// Specifies the default message handlers
KE_MSG_HANDLER_TAB(cppc){
    {GATTC_SDP_SVC_IND, (ke_msg_func_t)gattc_sdp_svc_ind_handler},
    {CPPC_READ_CMD, (ke_msg_func_t)cppc_read_req_handler},
    {GATTC_READ_IND, (ke_msg_func_t)gattc_read_ind_handler},
    {CPPC_CFG_NTFIND_CMD, (ke_msg_func_t)cppc_cfg_ntfind_cmd_handler},
    {CPPC_CTNL_PT_CFG_REQ, (ke_msg_func_t)cppc_ctnl_pt_cfg_req_handler},
    {GATTC_EVENT_IND, (ke_msg_func_t)gattc_event_ind_handler},
    {GATTC_EVENT_REQ_IND, (ke_msg_func_t)gattc_event_ind_handler},
    {CPPC_TIMEOUT_TIMER_IND, (ke_msg_func_t)cppc_timeout_timer_ind_handler},
    {CPPC_ENABLE_REQ, (ke_msg_func_t)cppc_enable_req_handler},
    {GATTC_CMP_EVT, (ke_msg_func_t)gattc_cmp_evt_handler},
};

void cppc_task_init(struct ke_task_desc *task_desc) {
  // Get the address of the environment
  struct cppc_env_tag *cppc_env = PRF_ENV_GET(CPPC, cppc);

  task_desc->msg_handler_tab = cppc_msg_handler_tab;
  task_desc->msg_cnt = ARRAY_LEN(cppc_msg_handler_tab);
  task_desc->state = cppc_env->state;
  task_desc->idx_max = CPPC_IDX_MAX;
}

#endif //(BLE_CP_COLLECTOR)

/// @} CPPCTASK