164 lines
4.5 KiB
C
164 lines
4.5 KiB
C
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#ifndef GATTC_H_
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#define GATTC_H_
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/**
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****************************************************************************************
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* @addtogroup GATTC Generic Attribute Profile Controller
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* @ingroup GATT
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* @brief Generic Attribute Profile Controller.
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*
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* This GATT module is responsible for providing an API for all attribute related operations
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* related to a BLE connection.
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* It is responsible for all the service framework activities using the Attribute protocol
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* for discovering services and for reading and writing characteristic values on a peer device.
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* To achieve this, the GATT interfaces with @ref ATTC "ATTC" and the @ref ATTS "ATTS".
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*
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* @{
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****************************************************************************************
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*/
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/*
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* INCLUDE FILES
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****************************************************************************************
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*/
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/* kernel task */
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#include "rwip_config.h"
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#if (BLE_GATTC)
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#include "co_list.h"
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/*
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* DEFINES
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****************************************************************************************
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*/
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/// Operation type
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enum gattc_op_type
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{
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#if (BLE_ATTS)
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/// Operation used to Server Request operations
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GATTC_OP_SERVER,
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#endif // (BLE_ATTS)
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#if (BLE_ATTC)
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/// Operation used to Client Request operations
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GATTC_OP_CLIENT,
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/// Service Discovery Procedure operation
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GATTC_OP_SDP,
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#endif // (BLE_ATTC)
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/// Max number of operations
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GATTC_OP_MAX
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};
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/*
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* TYPES DEFINITIONS
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****************************************************************************************
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*/
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#if (BLE_ATTC)
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/// Attribute Client environment variable requirements
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struct attc_env
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{
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/// List of ATT message used to aggregate long value in a single buffer.
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struct co_list rsp_list;
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/// List that contains peer device event registration
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struct co_list reg_evt;
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/// List that contains data for service discovery
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struct co_list sdp_data;
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};
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#endif // (BLE_ATTC)
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#if (BLE_ATTS)
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/// Attribute server environment variables
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struct atts_env
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{
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/// This is used to merge save all the prepare write request received ,
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/// before receiving the execute or cancel or disconnection.
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struct co_list prep_wr_req_list;
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/// This list is used to put any data in order to send a response to peer device
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struct co_list rsp;
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/// This structure is used to store in cache latest attribute read value
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struct gattc_read_cfm* read_cache;
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/// pointer to the PDU which is currently handled by ATTS
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struct l2cc_pdu_recv_ind* pdu;
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};
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#endif // (BLE_ATTS)
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/// GATT controller environment variable structure.
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struct gattc_env_tag
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{
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/// Request operation Kernel message
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void* operation[GATTC_OP_MAX];
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#if (BLE_ATTC)
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struct attc_env client;
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#endif // (BLE_ATTC)
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#if (BLE_ATTS)
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struct atts_env server;
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#endif // (BLE_ATTS)
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/// Current MTU Size
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uint16_t mtu_size;
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/// A transaction timeout occurs, reject next attribute commands
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bool trans_timeout;
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};
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/*
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* MACRO DEFINITIONS
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****************************************************************************************
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*/
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/*
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* FUNCTION DECLARATIONS
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****************************************************************************************
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*/
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/**
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****************************************************************************************
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* @brief Created link connection parameters (from bond data) has been set, connection
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* ready to be used.
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*
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* @param[in] conidx Connection Index
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*
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****************************************************************************************
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*/
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void gattc_con_enable(uint8_t conidx);
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/**
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****************************************************************************************
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* @brief Gets the negotiated MTU. This function gets the negotiated MTU.
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*
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* @param[in] idx connection record index
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*
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* @return MTU negotiated
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*
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****************************************************************************************
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*/
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uint16_t gattc_get_mtu(uint8_t idx);
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/**
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****************************************************************************************
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* @brief Sets the negotiated MTU This function stores the negotiated MTU.
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*
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* @param[in] idx connection record index
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* @param[in] mtu negotiated MTU
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*
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* @return status indicates if the MTU setting operation is successful
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*
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****************************************************************************************
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*/
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void gattc_set_mtu(uint8_t idx, uint16_t mtu);
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#endif /* (BLE_GATTC) */
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/// @} GATTC
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#endif // GATTC_H_
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