gatt_attr_process_prepare_write() function

* Function gatt_check_connection_state_by_tcb * Description * Returns TRUE if connected. Otherwise connection not established.

* Function gatt_send_error_rsp * Description This function sends an error response. * Returns void

* Function attp_send_sr_msg * Description This function sends the server response or indication message * to client. * Parameter p_tcb: pointer to the connecton control block. * p_msg: pointer to message parameters structure. * Returns GATT_SUCCESS if successfully sent; otherwise error code.

* Function gatt_get_ch_state * Description This function get the ch_state in tcb * Returns none

* Function attp_send_cl_msg * Description This function sends the client request or confirmation message * to server. * Parameter p_tcb: pointer to the connection control block. * clcb_idx: clcb index * op_code: message op code. * p_msg: pointer to message parameters structure. * Returns GATT_SUCCESS if successfully sent; otherwise error code.

* Function gatt_dequeue_sr_cmd * Description This function dequeue the request from command queue. * Returns void

GATTS_INCLUDED == TRUE * Function gatt_set_ch_state * Description This function set the ch_state in tcb * Returns none

* Function gatt_update_app_use_link_flag * Description Update the application use link flag and optional to check the acl link * if the link is up then set the idle time out accordingly * Returns void.

* Function gatt_num_apps_hold_link * Description The function find the number of applcaitions is holding the link * Returns total number of applications holding this acl link.

* Function attp_build_sr_msg * Description Build ATT Server PDUs.

* Function gatt_sr_enqueue_cmd * Description This function enqueue the request from client which needs a * application response, and update the transaction ID. * Returns void

* Function gatt_set_sec_act * Description This function set the sec_act in clcb * Returns none

* Function gatt_disconnect * Description This function is called to disconnect to an ATT device. * Parameter p_tcb: pointer to the TCB to disconnect. * Returns TRUE: if connection found and to be disconnected; otherwise * return FALSE.

* Function gatt_get_sec_act * Description This function get the sec_act in clcb * Returns none

* Function attp_send_msg_to_l2cap * Description Send message to L2CAP.

* Function gatt_sr_reset_cback_cnt * Description Reset the application callback count to zero * Returns None

* Function gatt_send_write_msg * Description This real function send out the ATT message for write. * Returns status code

* Function gatt_cmd_dequeue * Description dequeue the command in the client CCB command queue. * Returns total number of clcb found.

* Function gatt_send_queue_write_cancel * Description send queue write cancel * Returns void.

* Function gatt_send_prepare_write * Description Send prepare write. * Returns void.

* Function gatts_send_app_read_request * Description Send application read request callback * Returns status of operation.

GATTS_INCLUDED == TRUE * Function gatt_connect * Description This function is called to initiate a connection to a peer device. * Parameter rem_bda: remote device address to connect to. * bd_addr_type: emote device address type. * Returns TRUE if connection is started, otherwise return FALSE.

* Function gatt_add_pending_new_srv_start * Description Add a pending new srv start to the new service start queue * Returns Pointer to the new service start buffer, NULL no buffer available

* Function gatt_is_srv_chg_ind_pending * Description Check whether a service chnaged is in the indication pending queue * or waiting for an Ack already * Returns BOOLEAN

* Function gatt_cl_send_next_cmd_inq * Description Find next command in queue and sent to server * Returns TRUE if command sent, otherwise FALSE.

* Function gatt_sr_process_app_rsp * Description This function checks whether the response message from application * match any pending request or not. * Returns void

* Function gatt_server_handle_client_req * Description This function is called to handle the client requests to * server. * Returns void

* Function gatt_sr_is_cback_cnt_zero * Description The function searches all LCB with macthing bd address * Returns True if thetotal application callback count is zero

* Function gatt_sr_update_cback_cnt * Description Update the teh application callback count * Returns None

* Function gatt_sr_update_prep_cnt * Description Update the teh prepare write request count * Returns None

* Function gatt_tcb_free * Description The function free the given tcb block and update tcb id * Returns void

* Function gatt_cmd_enq * Description Enqueue this command. * Returns None.

* Function gatts_read_attr_value_by_handle * Description Query attribute value by attribute handle. * Parameter p_db: pointer to the attribute database. * handle: Attribute handle to read. * offset: Read offset. * p_value: output parameter to carry out the attribute value. * p_len: output parameter as attribute length read. * read_long: this is a read blob request. * mtu: MTU. * sec_flag: current link security status. * key_size: encryption key size * Returns Status of operation.

CLASSIC_BT_GATT_INCLUDED == TRUE * Function gatt_send_conn_cback * Description Callback used to notify layer above about a connection. * Returns void

* Function gatt_send_packet * Description This function is called to send gatt packets directly * Returns status

* Function gatt_le_data_ind * Description This function is called when data is received from L2CAP. * if we are the originator of the connection, we are the ATT * client, and the received message is queued up for the client. * If we are the destination of the connection, we are the ATT * server, so the message is passed to the server processing * function. * Returns void

* Function gatt_start_conf_timer * Description Start a wait_for_confirmation timer. * Returns TRUE if command sent, otherwise FALSE.

* Function gatt_start_ind_ack_timer * Description start the application ack timer * Returns void

* Function gatt_sr_update_cback_cnt * Description The function searches all LCB with macthing bd address * Returns total number of clcb found.

* Function gatt_sr_is_prep_cnt_zero * Description Check the prepare write request count is zero or not * Returns True no prepare write request

* Function gatt_sr_reset_prep_cnt * Description Reset the prep write count to zero * Returns None

* Function gatt_find_app_hold_link * Description find the application that is holding the specified link * Returns Boolean

* Function gatt_find_specific_app_in_hold_link * Description find the specific application that is holding the specified link * Returns Boolean

* Function gatt_client_handle_server_rsp * Description This function is called to handle the server response to * client. * Returns void

SMP_INCLUDED == TRUE * Function gatt_verify_signature * Description This function start to verify the sign data when receiving * the data from peer device. * Returns

* Function gatt_get_link_encrypt_status * Description This routine get the encryption status of the specified link * Returns tGATT_STATUS link encryption status

* Function gatts_db_read_attr_value_by_type * Description Query attribute value by attribute type. * Parameter p_db: pointer to the attribute database. * p_rsp: Read By type response data. * s_handle: starting handle of the range we are looking for. * e_handle: ending handle of the range we are looking for. * type: Attribute type. * mtu: MTU. * sec_flag: current link security status. * key_size: encryption key size. * Returns Status of the operation.

* Function gatt_add_pending_ind * Description Add a pending indication * Returns Pointer to the current pending indication buffer, NULL no buffer available

* Function gatt_act_send_browse * Description This function ends a browse command request, including read * information request and read by type request. * Returns status code

* Function attp_cl_send_cmd * Description Send a ATT command or enqueue it. * Returns GATT_SUCCESS if command sent * GATT_CONGESTED if command sent but channel congested * GATT_CMD_STARTED if command queue up in GATT * GATT_ERROR if command sending failure

* Function gatt_process_read_rsp * Description This function is called to handle the read BLOB response * Returns void

* Function gatt_process_find_type_value_rsp * Description This function is called to handle find by type value response. * Returns void

* Function gatt_process_read_info_rsp * Description This function is called to handle the read information * response. * Returns void

* Function gatt_process_mtu_rsp * Description This function is called to process the configure MTU response. * Returns void

* Function gatt_process_error_rsp * Description This function is called to handle the error response * Returns void

* Function gatt_process_prep_write_rsp * Description This function is called to handle the read response * Returns void

* Function gatt_check_write_long_terminate * Description To terminate write long or not. * Returns TRUE: write long is terminated; FALSE keep sending.

* Function gatt_process_read_by_type_rsp * Description This function is called to handle the read by type response. * read by type can be used for discovery, or read by type or * read characteristic value. * Returns void

* Function gatt_process_notification * Description This function is called to handle the handle value indication * or handle value notification. * Returns void

* Function gatt_proc_disc_error_rsp * Description This function process the read by type response and send another * request if needed. * Returns void.

* Function gatt_channel_congestion * Description This function is called to process the congestion callback * from lcb * Returns void

* Function gatt_update_app_hold_link_status * Description Update the application use link status * Returns void.

* Function gatts_process_read_by_type_req * Description process Read By type request. * This PDU can be used to perform: * - read characteristic value * - read characteristic descriptor value * - discover characteristic * - discover characteristic by UUID * - relationship discovery * Returns void

* Function gatt_process_exec_write_req * Description This function is called to process the execute write request * from client. * Returns void

* Function gatts_process_attribute_req * Description This function is called to process the per attribute handle request * from client. * Returns void

* Function gatts_process_write_req * Description This function is called to process the write request * from client. * Returns void

* Function gatt_sr_cmd_empty * Description This function check the server command queue is empty or not. * Returns TRUE if empty, FALSE if there is pending command.

* Function gatt_process_read_multi_req * Description This function is called to process the read multiple request * from client. * Returns void

* Function gatts_process_primary_service_req * Description process ReadByGroupType/ReadByTypeValue request, for discover * all primary services or discover primary service by UUID request. * Returns void

* Function gatts_process_find_info * Description process find information request, for discover character * descriptors. * Returns void

* Function gatts_process_mtu_req * Description This function is called to process excahnge MTU request. * Only used on LE. * Returns void

* Function gatts_proc_srv_chg_ind_ack * Description This function process the service changed indicaiton ACK * Returns void

* Function gatts_chk_pending_ind * Description This function check any pending indication needs to be sent if * there is a pending indication then sent the indication * Returns void

* Function gatts_proc_ind_ack * Description This function process the Indication ack * Returns TRUE continue to process the indication ack by the aaplication * if the ACk is not a Service Changed Indication Ack

* Function gatts_process_value_conf * Description This function is called to process the handle value confirmation. * Returns void

* Function gatt_build_primary_service_rsp * Description Primamry service request processed internally. Theretically * only deal with ReadByTypeVAlue and ReadByGroupType. * Returns void

* Function gatts_process_read_req * Description This function is called to process the read request * from client. * Returns void

* Function gatt_free_pending_enc_queue * Description Free all buffers in pending encyption queue * Returns None

* Function gatt_free_pending_prepare_write_queue * Description Free all buffers in pending prepare write packets queue * Returns None

* Function gatt_free_pending_ind * Description Free all pending indications * Returns None