Maxim Integrated
Maxim Integrated Bluetooth LE Library
Dependents: BLE_Thermometer MAXWSNENV_demo
Diff: exactLE/stack/include/att_api.h
- Revision:
- 0:b562096246b3
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/exactLE/stack/include/att_api.h Thu Mar 03 14:13:21 2016 +0000
@@ -0,0 +1,942 @@
+/*************************************************************************************************/
+/*!
+ * \file att_api.h
+ *
+ * \brief Attribute protocol client and server API.
+ *
+ * $Date: 2012-05-07 19:54:28 -0700 (Mon, 07 May 2012) $
+ * $Revision: 315 $
+ *
+ * Copyright (c) 2009-2016 ARM Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: LicenseRef-PBL
+ *
+ * Licensed under the Permissive Binary License, Version 1.0 (the "License"); you may not use
+ * this file except in compliance with the License. You may obtain a copy of the License at
+ *
+ * https://www.mbed.com/licenses/PBL-1.0
+ *
+ * See the License for the specific language governing permissions and limitations under the License.
+ */
+/*************************************************************************************************/
+#ifndef ATT_API_H
+#define ATT_API_H
+
+#include "wsf_timer.h"
+#include "att_defs.h"
+#include "att_uuid.h"
+#include "dm_api.h"
+#include "cfg_stack.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**************************************************************************************************
+ Macros
+**************************************************************************************************/
+
+/*! ATT server attribute settings */
+#define ATTS_SET_UUID_128 0x01 /*! Set if the UUID is 128 bits in length */
+#define ATTS_SET_WRITE_CBACK 0x02 /*! Set if the group callback is executed when
+ this attribute is written by a client device */
+#define ATTS_SET_READ_CBACK 0x04 /*! Set if the group callback is executed when
+ this attribute is read by a client device */
+#define ATTS_SET_VARIABLE_LEN 0x08 /*! Set if the attribute has a variable length */
+#define ATTS_SET_ALLOW_OFFSET 0x10 /*! Set if writes are allowed with an offset */
+#define ATTS_SET_CCC 0x20 /*! Set if the attribute is a client characteristic
+ configuration descriptor */
+#define ATTS_SET_ALLOW_SIGNED 0x40 /*! Set if signed writes are allowed */
+#define ATTS_SET_REQ_SIGNED 0x80 /*! Set if signed writes are required if link
+ is not encrypted */
+
+/*! ATT server attribute permissions */
+#define ATTS_PERMIT_READ 0x01 /*! Set if attribute can be read */
+#define ATTS_PERMIT_READ_AUTH 0x02 /*! Set if attribute read requires authentication */
+#define ATTS_PERMIT_READ_AUTHORIZ 0x04 /*! Set if attribute read requires authorization */
+#define ATTS_PERMIT_READ_ENC 0x08 /*! Set if attribute read requires encryption */
+#define ATTS_PERMIT_WRITE 0x10 /*! Set if attribute can be written */
+#define ATTS_PERMIT_WRITE_AUTH 0x20 /*! Set if attribute write requires authentication */
+#define ATTS_PERMIT_WRITE_AUTHORIZ 0x40 /*! Set if attribute write requires authorization */
+#define ATTS_PERMIT_WRITE_ENC 0x80 /*! Set if attribute write requires encryption */
+
+/*! ATT client characteristic discovery and configuration settings */
+#define ATTC_SET_UUID_128 0x01 /*! Set if the UUID is 128 bits in length */
+#define ATTC_SET_REQUIRED 0x02 /*! Set if characteristic must be discovered */
+#define ATTC_SET_DESCRIPTOR 0x04 /*! Set if this is a characteristic descriptor */
+
+/*! ATT callback events */
+#define ATT_CBACK_START 0x02 /*! ATT callback event starting value */
+enum /*! Internal note: event values match method values */
+{
+ /*! ATT client callback events */
+ ATTC_FIND_INFO_RSP = ATT_CBACK_START, /*! Find information response */
+ ATTC_FIND_BY_TYPE_VALUE_RSP, /*! Find by type value response */
+ ATTC_READ_BY_TYPE_RSP, /*! Read by type value response */
+ ATTC_READ_RSP, /*! Read response */
+ ATTC_READ_LONG_RSP, /*! Read long response */
+ ATTC_READ_MULTIPLE_RSP, /*! Read multiple response */
+ ATTC_READ_BY_GROUP_TYPE_RSP, /*! Read group type response */
+ ATTC_WRITE_RSP, /*! Write response */
+ ATTC_WRITE_CMD_RSP, /*! Write command response */
+ ATTC_PREPARE_WRITE_RSP, /*! Prepare write response */
+ ATTC_EXECUTE_WRITE_RSP, /*! Execute write response */
+ ATTC_HANDLE_VALUE_NTF, /*! Handle value notification */
+ ATTC_HANDLE_VALUE_IND, /*! Handle value indication */
+ /*! ATT server callback events */
+ ATTS_HANDLE_VALUE_CNF, /*! Handle value confirmation */
+ ATTS_CCC_STATE_IND /*! Client chracteristic configuration state change */
+};
+
+/*! ATT callback events */
+#define ATT_CBACK_END ATTS_CCC_STATE_IND /*! ATT callback event ending value */
+
+/*! Base value for HCI error status values passed through ATT */
+#define ATT_HCI_ERR_BASE 0x20
+
+/**************************************************************************************************
+ Data Types
+**************************************************************************************************/
+
+/*! Configurable parameters */
+typedef struct
+{
+ wsfTimerTicks_t discIdleTimeout; /*! ATT server service discovery connection idle timeout in seconds */
+ uint16_t mtu; /*! desired ATT MTU */
+ uint8_t transTimeout; /*! transcation timeout in seconds */
+ uint8_t numPrepWrites; /*! number of queued prepare writes supported by server */
+} attCfg_t;
+
+/*!
+ * Attribute server data types
+ */
+
+/*! Attribute structure */
+typedef struct
+{
+ uint8_t const *pUuid; /*! Pointer to the attributes UUID */
+ uint8_t *pValue; /*! Pointer to the attributes value */
+ uint16_t *pLen; /*! Pointer to the length of the attributes value */
+ uint16_t maxLen; /*! Maximum length of attributes value */
+ uint8_t settings; /*! Attribute settings */
+ uint8_t permissions; /*! Attribute permissions */
+} attsAttr_t;
+
+/*! Attribute group read callback */
+typedef uint8_t (*attsReadCback_t)(dmConnId_t connId, uint16_t handle, uint8_t operation,
+ uint16_t offset, attsAttr_t *pAttr);
+
+/*! Attribute group write callback */
+typedef uint8_t (*attsWriteCback_t)(dmConnId_t connId, uint16_t handle, uint8_t operation,
+ uint16_t offset, uint16_t len, uint8_t *pValue,
+ attsAttr_t *pAttr);
+
+/*! Attribute group */
+typedef struct attsGroup_tag
+{
+ struct attsGroup_tag *pNext; /*! For internal use only */
+ attsAttr_t *pAttr; /*! Pointer to attribute list for this group */
+ attsReadCback_t readCback; /*! Read callback function */
+ attsWriteCback_t writeCback; /*! Write callback function */
+ uint16_t startHandle; /*! The handle of the first attribute in this group */
+ uint16_t endHandle; /*! The handle of the last attribute in this group */
+} attsGroup_t;
+
+/*! Client characteristc configuration settings */
+typedef struct
+{
+ uint16_t handle; /*! Client characteristc configuration descriptor handle */
+ uint16_t valueRange; /*! Acceptable value range of the descriptor value */
+ uint8_t secLevel; /*! Security level of characteristic value */
+} attsCccSet_t;
+
+/*! ATT client structure for characteristic and descriptor discovery */
+typedef struct attcDiscChar_tag
+{
+ uint8_t const *pUuid; /*! Pointer to UUID */
+ uint8_t settings; /*! Characteristic discovery settings */
+} attcDiscChar_t;
+
+/*! ATT client structure for characteristic and descriptor configuration */
+typedef struct
+{
+ uint8_t const *pValue; /*! Pointer to default value or NULL */
+ uint8_t valueLen; /*! Default value length */
+ uint8_t hdlIdx; /*! Index of its handle in handle list */
+} attcDiscCfg_t;
+
+/*! ATT client discovery control block */
+typedef struct
+{
+ attcDiscChar_t **pCharList; /*! Characterisic list for discovery */
+ uint16_t *pHdlList; /*! Characteristic handle list */
+ attcDiscCfg_t *pCfgList; /*! Characterisic list for configuration */
+ uint8_t charListLen; /*! Characteristic and handle list length */
+ uint8_t cfgListLen; /*! Configuration list length */
+
+ /* the following are for internal use only */
+ uint16_t svcStartHdl;
+ uint16_t svcEndHdl;
+ uint8_t charListIdx;
+ uint8_t endHdlIdx;
+} attcDiscCb_t;
+
+/*!
+ * ATT callback parameters:
+ *
+ * \param hdr.event Callback event
+ * \param hdr.param DM connection ID
+ * \param hdr.status Event status: ATT_SUCCESS or error status
+ * \param pValue Pointer to value data, valid if valueLen > 0
+ * \param valueLen Length of value data
+ * \param handle Attribute handle
+ */
+typedef struct
+{
+ wsfMsgHdr_t hdr; /*! Header structure */
+ uint8_t *pValue; /*! Value */
+ uint16_t valueLen; /*! Value length */
+ uint16_t handle; /*! Attribute handle */
+ bool_t continuing; /*! TRUE if more response packets expected */
+} attEvt_t;
+
+/*! ATTS client characteristic configuration callback structure */
+typedef struct
+{
+ wsfMsgHdr_t hdr; /*! Header structure */
+ uint16_t handle; /*! CCCD handle */
+ uint16_t value; /*! CCCD value */
+ uint8_t idx; /*! CCCD settings index */
+} attsCccEvt_t;
+
+/*! ATT callback type */
+typedef void (*attCback_t)(attEvt_t *pEvt);
+
+/*! ATTS authorization callback type */
+typedef uint8_t (*attsAuthorCback_t)(dmConnId_t connId, uint8_t permit, uint16_t handle);
+
+/*! ATTS client characteristic configuration callback */
+typedef void (*attsCccCback_t)(attsCccEvt_t *pEvt);
+
+/**************************************************************************************************
+ Global Variables
+**************************************************************************************************/
+
+/*! Configuration pointer */
+extern attCfg_t *pAttCfg;
+
+/**************************************************************************************************
+ Function Declarations
+**************************************************************************************************/
+
+/*************************************************************************************************/
+/*!
+ * \fn AttRegister
+ *
+ * \brief Register a callback with ATT.
+ *
+ * \param cback Client callback function.
+ *
+ * \return None.
+ */
+/*************************************************************************************************/
+void AttRegister(attCback_t cback);
+
+/*************************************************************************************************/
+/*!
+ * \fn AttConnRegister
+ *
+ * \brief Register a connection callback with ATT. The callback is typically used to
+ * manage the attribute server database.
+ *
+ * \param cback Client callback function.
+ *
+ * \return None.
+ */
+/*************************************************************************************************/
+void AttConnRegister(dmCback_t cback);
+
+
+/*************************************************************************************************/
+/*!
+ * \fn AttGetMtu
+ *
+ * \brief Get the attribute protocol MTU of a connection.
+ *
+ * \param connId DM connection ID.
+ *
+ * \return MTU of the connection.
+ */
+/*************************************************************************************************/
+uint16_t AttGetMtu(dmConnId_t connId);
+
+/*************************************************************************************************/
+/*!
+ * \fn AttsInit
+ *
+ * \brief Initialize ATT server.
+ *
+ * \return None.
+ */
+/*************************************************************************************************/
+void AttsInit(void);
+
+/*************************************************************************************************/
+/*!
+ * \fn AttsIndInit
+ *
+ * \brief Initialize ATT server for indications/notifications.
+ *
+ * \return None.
+ */
+/*************************************************************************************************/
+void AttsIndInit(void);
+
+/*************************************************************************************************/
+/*!
+ * \fn AttsSignInit
+ *
+ * \brief Initialize ATT server for data signing.
+ *
+ * \return None.
+ */
+/*************************************************************************************************/
+void AttsSignInit(void);
+
+/*************************************************************************************************/
+/*!
+ * \fn AttsAuthorRegister
+ *
+ * \brief Register an authorization callback with the attribute server.
+ *
+ * \param cback Client callback function.
+ *
+ * \return None.
+ */
+/*************************************************************************************************/
+void AttsAuthorRegister(attsAuthorCback_t cback);
+
+/*************************************************************************************************/
+/*!
+ * \fn AttsAddGroup
+ *
+ * \brief Add an attribute group to the attribute server.
+ *
+ * \param pGroup Pointer to an attribute group structure.
+ *
+ * \return None.
+ */
+/*************************************************************************************************/
+void AttsAddGroup(attsGroup_t *pGroup);
+
+/*************************************************************************************************/
+/*!
+ * \fn AttsRemoveGroup
+ *
+ * \brief Remove an attribute group from the attribute server.
+ *
+ * \param startHandle Start handle of attribute group to be removed.
+ *
+ * \return None.
+ */
+/*************************************************************************************************/
+void AttsRemoveGroup(uint16_t startHandle);
+
+/*************************************************************************************************/
+/*!
+ * \fn AttsSetAttr
+ *
+ * \brief Set an attribute value in the attribute server.
+ *
+ * \param handle Attribute handle.
+ * \param valueLen Attribute length.
+ * \param pValue Attribute value.
+ *
+ * \return ATT_SUCCESS if successful otherwise error.
+ */
+/*************************************************************************************************/
+uint8_t AttsSetAttr(uint16_t handle, uint16_t valueLen, uint8_t *pValue);
+
+/*************************************************************************************************/
+/*!
+ * \fn AttsGetAttr
+ *
+ * \brief Get an attribute value in the attribute server.
+ *
+ * \param handle Attribute handle.
+ * \param pLen Returned attribute length pointer.
+ * \param pValue Returned attribute value pointer.
+ *
+ * \return ATT_SUCCESS if successful otherwise error.
+ * \return This function returns the attribute length in pLen and a pointer to the attribute
+ * value in pValue.
+ */
+/*************************************************************************************************/
+uint8_t AttsGetAttr(uint16_t handle, uint16_t *pLen, uint8_t **pValue);
+
+/*************************************************************************************************/
+/*!
+ * \fn AttsHandleValueInd
+ *
+ * \brief Send an attribute protocol Handle Value Indication.
+ *
+ * \param connId DM connection ID.
+ * \param handle Attribute handle.
+ * \param valueLen Length of value data.
+ * \param pValue Pointer to value data.
+ *
+ * \return None.
+ */
+/*************************************************************************************************/
+void AttsHandleValueInd(dmConnId_t connId, uint16_t handle, uint16_t valueLen, uint8_t *pValue);
+
+/*************************************************************************************************/
+/*!
+ * \fn AttsHandleValueNtf
+ *
+ * \brief Send an attribute protocol Handle Value Notification.
+ *
+ * \param connId DM connection ID.
+ * \param handle Attribute handle.
+ * \param valueLen Length of value data.
+ * \param pValue Pointer to value data.
+ *
+ * \return None.
+ */
+/*************************************************************************************************/
+void AttsHandleValueNtf(dmConnId_t connId, uint16_t handle, uint16_t valueLen, uint8_t *pValue);
+
+/*************************************************************************************************/
+/*!
+ * \fn AttsCccRegister
+ *
+ * \brief Register the utility service for managing client characteristic
+ * configuration descriptors. This function is typically called once on
+ * system initialization.
+ *
+ * \param setLen Length of settings array.
+ * \param pSet Array of CCC descriptor settings.
+ * \param cback Client callback function.
+ *
+ * \return None.
+ */
+/*************************************************************************************************/
+void AttsCccRegister(uint8_t setLen, attsCccSet_t *pSet, attsCccCback_t cback);
+
+/*************************************************************************************************/
+/*!
+ * \fn AttsCccInitTable
+ *
+ * \brief Initialize the client characteristic configuration descriptor value table for a
+ * connection. The table is initialized with the values from pCccTbl. If pCccTbl
+ * is NULL the table will be initialized to zero.
+ *
+ * This function must be called when a connection is established or when a
+ * device is bonded.
+ *
+ * \param connId DM connection ID.
+ * \param pCccTbl Pointer to the descriptor value array. The length of the array
+ * must equal the value of setLen passed to AttsCccRegister().
+ *
+ * \return None.
+ */
+/*************************************************************************************************/
+void AttsCccInitTable(dmConnId_t connId, uint16_t *pCccTbl);
+
+/*************************************************************************************************/
+/*!
+ * \fn AttsCccClearTable
+ *
+ * \brief Clear and deallocate the client characteristic configuration descriptor value
+ * table for a connection. This function must be called when a connection is closed.
+ *
+ * \param connId DM connection ID.
+ *
+ * \return None.
+ */
+/*************************************************************************************************/
+void AttsCccClearTable(dmConnId_t connId);
+
+/*************************************************************************************************/
+/*!
+ * \fn AttsCccGet
+ *
+ * \brief Get the value of a client characteristic configuration descriptor by its index.
+ * If not found, return zero.
+ *
+ * \param connId DM connection ID.
+ * \param idx Index of descriptor in CCC descriptor handle table.
+ *
+ * \return Value of the descriptor.
+ */
+/*************************************************************************************************/
+uint16_t AttsCccGet(dmConnId_t connId, uint8_t idx);
+
+/*************************************************************************************************/
+/*!
+ * \fn AttsCccSet
+ *
+ * \brief Set the value of a client characteristic configuration descriptor by its index.
+ *
+ * \param connId DM connection ID.
+ * \param idx Index of descriptor in CCC descriptor handle table.
+ * \param value Value of the descriptor.
+ *
+ * \return None.
+ */
+/*************************************************************************************************/
+void AttsCccSet(dmConnId_t connId, uint8_t idx, uint16_t value);
+
+/*************************************************************************************************/
+/*!
+ * \fn AttsCccEnabled
+ *
+ * \brief Check if a client characteristic configuration descriptor is enabled and if
+ * the characteristic's security level has been met.
+ *
+ * \param connId DM connection ID.
+ * \param idx Index of descriptor in CCC descriptor handle table.
+ *
+ * \return Value of the descriptor if security level is met, otherwise zero.
+ */
+/*************************************************************************************************/
+uint16_t AttsCccEnabled(dmConnId_t connId, uint8_t idx);
+
+/*************************************************************************************************/
+/*!
+ * \fn AttsSetCsrk
+ *
+ * \brief Set the peer's data signing key on this connection. This function
+ * is typically called from the ATT connection callback when the connection is
+ * established. The caller is responsible for maintaining the memory that
+ * contains the key.
+ *
+ * \param connId DM connection ID.
+ * \param pCsrk Pointer to data signing key (CSRK).
+ *
+ * \return None.
+ */
+/*************************************************************************************************/
+void AttsSetCsrk(dmConnId_t connId, uint8_t *pCsrk);
+
+/*************************************************************************************************/
+/*!
+ * \fn AttsSetSignCounter
+ *
+ * \brief Set the peer's sign counter on this connection. This function
+ * is typically called from the ATT connection callback when the connection is
+ * established. ATT maintains the value of the sign counter internally and
+ * sets the value when a signed packet is successfully received.
+ *
+ * \param connId DM connection ID.
+ * \param signCounter Sign counter.
+ *
+ * \return None.
+ */
+/*************************************************************************************************/
+void AttsSetSignCounter(dmConnId_t connId, uint32_t signCounter);
+
+/*************************************************************************************************/
+/*!
+ * \fn AttsGetSignCounter
+ *
+ * \brief Get the current value peer's sign counter on this connection. This function
+ * is typically called from the ATT connection callback when the connection is
+ * closed so the application can store the sign counter for use on future
+ * connections.
+ *
+ * \param connId DM connection ID.
+ *
+ * \return Sign counter.
+ */
+/*************************************************************************************************/
+uint32_t AttsGetSignCounter(dmConnId_t connId);
+
+/*************************************************************************************************/
+/*!
+ * \fn AttcInit
+ *
+ * \brief Initialize ATT client.
+ *
+ * \return None.
+ */
+/*************************************************************************************************/
+void AttcInit(void);
+
+/*************************************************************************************************/
+/*!
+ * \fn AttcSignInit
+ *
+ * \brief Initialize ATT client for data signing.
+ *
+ * \return None.
+ */
+/*************************************************************************************************/
+void AttcSignInit(void);
+
+/*************************************************************************************************/
+/*!
+ * \fn AttcFindInfoReq
+ *
+ * \brief Initiate an attribute protocol Find Information Request.
+ *
+ * \param connId DM connection ID.
+ * \param startHandle Attribute start handle.
+ * \param endHandle Attribute end handle.
+ * \param continuing TRUE if ATTC continues sending requests until complete.
+ *
+ * \return None.
+ */
+/*************************************************************************************************/
+void AttcFindInfoReq(dmConnId_t connId, uint16_t startHandle, uint16_t endHandle, bool_t continuing);
+
+/*************************************************************************************************/
+/*!
+ * \fn AttcFindByTypeValueReq
+ *
+ * \brief Initiate an attribute protocol Find By Type Value Request.
+ *
+ * \param connId DM connection ID.
+ * \param startHandle Attribute start handle.
+ * \param endHandle Attribute end handle.
+ * \param uuid16 16-bit UUID to find.
+ * \param valueLen Length of value data.
+ * \param pValue Pointer to value data.
+ * \param continuing TRUE if ATTC continues sending requests until complete.
+ *
+ * \return None.
+ */
+/*************************************************************************************************/
+void AttcFindByTypeValueReq(dmConnId_t connId, uint16_t startHandle, uint16_t endHandle,
+ uint16_t uuid16, uint16_t valueLen, uint8_t *pValue, bool_t continuing);
+
+/*************************************************************************************************/
+/*!
+ * \fn AttcReadByTypeReq
+ *
+ * \brief Initiate an attribute protocol Read By Type Request.
+ *
+ * \param connId DM connection ID.
+ * \param startHandle Attribute start handle.
+ * \param endHandle Attribute end handle.
+ * \param uuidLen Length of UUID (2 or 16).
+ * \param pUuid Pointer to UUID data.
+ * \param continuing TRUE if ATTC continues sending requests until complete.
+ *
+ * \return None.
+ */
+/*************************************************************************************************/
+void AttcReadByTypeReq(dmConnId_t connId, uint16_t startHandle, uint16_t endHandle,
+ uint8_t uuidLen, uint8_t *pUuid, bool_t continuing);
+
+/*************************************************************************************************/
+/*!
+ * \fn AttcReadReq
+ *
+ * \brief Initiate an attribute protocol Read Request.
+ *
+ * \param connId DM connection ID.
+ * \param handle Attribute handle.
+ *
+ * \return None.
+ */
+/*************************************************************************************************/
+void AttcReadReq(dmConnId_t connId, uint16_t handle);
+
+/*************************************************************************************************/
+/*!
+ * \fn AttcReadLongReq
+ *
+ * \brief Initiate an attribute protocol Read Long Request.
+ *
+ * \param connId DM connection ID.
+ * \param handle Attribute handle.
+ * \param offset Read attribute data starting at this offset.
+ * \param continuing TRUE if ATTC continues sending requests until complete.
+ *
+ * \return None.
+ */
+/*************************************************************************************************/
+void AttcReadLongReq(dmConnId_t connId, uint16_t handle, uint16_t offset, bool_t continuing);
+
+/*************************************************************************************************/
+/*!
+ * \fn AttcReadMultipleReq
+ *
+ * \brief Initiate an attribute protocol Read Multiple Request.
+ *
+ * \param connId DM connection ID.
+ * \param numHandles Number of handles in attribute handle list.
+ * \param pHandles List of attribute handles.
+ *
+ * \return None.
+ */
+/*************************************************************************************************/
+void AttcReadMultipleReq(dmConnId_t connId, uint8_t numHandles, uint16_t *pHandles);
+
+/*************************************************************************************************/
+/*!
+ * \fn AttcReadByGroupTypeReq
+ *
+ * \brief Initiate an attribute protocol Read By Group Type Request.
+ *
+ * \param connId DM connection ID.
+ * \param startHandle Attribute start handle.
+ * \param endHandle Attribute end handle.
+ * \param uuidLen Length of UUID (2 or 16).
+ * \param pUuid Pointer to UUID data.
+ * \param continuing TRUE if ATTC continues sending requests until complete.
+ *
+ * \return None.
+ */
+/*************************************************************************************************/
+void AttcReadByGroupTypeReq(dmConnId_t connId, uint16_t startHandle, uint16_t endHandle,
+ uint8_t uuidLen, uint8_t *pUuid, bool_t continuing);
+
+/*************************************************************************************************/
+/*!
+ * \fn AttcWriteReq
+ *
+ * \brief Initiate an attribute protocol Write Request.
+ *
+ * \param connId DM connection ID.
+ * \param handle Attribute handle.
+ * \param valueLen Length of value data.
+ * \param pValue Pointer to value data.
+ *
+ * \return None.
+ */
+/*************************************************************************************************/
+void AttcWriteReq(dmConnId_t connId, uint16_t handle, uint16_t valueLen, uint8_t *pValue);
+
+/*************************************************************************************************/
+/*!
+ * \fn AttcWriteCmd
+ *
+ * \brief Initiate an attribute protocol Write Command.
+ *
+ * \param connId DM connection ID.
+ * \param handle Attribute handle.
+ * \param valueLen Length of value data.
+ * \param pValue Pointer to value data.
+ *
+ * \return None.
+ */
+/*************************************************************************************************/
+void AttcWriteCmd(dmConnId_t connId, uint16_t handle, uint16_t valueLen, uint8_t *pValue);
+
+/*************************************************************************************************/
+/*!
+ * \fn AttcSignedWriteCmd
+ *
+ * \brief Initiate an attribute protocol signed Write Command.
+ *
+ * \param connId DM connection ID.
+ * \param handle Attribute handle.
+ * \param signCounter Value of the sign counter.
+ * \param valueLen Length of value data.
+ * \param pValue Pointer to value data.
+ *
+ * \return None.
+ */
+/*************************************************************************************************/
+void AttcSignedWriteCmd(dmConnId_t connId, uint16_t handle, uint32_t signCounter,
+ uint16_t valueLen, uint8_t *pValue);
+
+/*************************************************************************************************/
+/*!
+ * \fn AttcPrepareWriteReq
+ *
+ * \brief Initiate an attribute protocol Prepare Write Request.
+ *
+ * \param connId DM connection ID.
+ * \param handle Attribute handle.
+ * \param offset Write attribute data starting at this offset.
+ * \param valueLen Length of value data.
+ * \param pValue Pointer to value data.
+ * \param valueByRef TRUE if pValue data is accessed by reference rather than copied.
+ * \param continuing TRUE if ATTC continues sending requests until complete.
+ *
+ * \return None.
+ */
+/*************************************************************************************************/
+void AttcPrepareWriteReq(dmConnId_t connId, uint16_t handle, uint16_t offset, uint16_t valueLen,
+ uint8_t *pValue, bool_t valueByRef, bool_t continuing);
+
+/*************************************************************************************************/
+/*!
+ * \fn AttcExecuteWriteReq
+ *
+ * \brief Initiate an attribute protocol Execute Write Request.
+ *
+ * \param connId DM connection ID.
+ * \param writeAll TRUE to write all queued writes, FALSE to cancel all queued writes.
+ *
+ * \return None.
+ */
+/*************************************************************************************************/
+void AttcExecuteWriteReq(dmConnId_t connId, bool_t writeAll);
+
+/*************************************************************************************************/
+/*!
+ * \fn AttcCancelReq
+ *
+ * \brief Cancel an attribute protocol request in progress.
+ *
+ * \param connId DM connection ID.
+ *
+ * \return None.
+ */
+/*************************************************************************************************/
+void AttcCancelReq(dmConnId_t connId);
+
+/*************************************************************************************************/
+/*!
+ * \fn AttcDiscService
+ *
+ * \brief This utility function discovers the given service on a peer device. Function
+ * AttcFindByTypeValueReq() is called to initiate the discovery procedure.
+ *
+ * \param connId DM connection ID.
+ * \param pCb Pointer to discovery control block.
+ * \param uuidLen Length of service UUID (2 or 16).
+ * \param pUuid Pointer to service UUID.
+ *
+ * \return None.
+ */
+/*************************************************************************************************/
+void AttcDiscService(dmConnId_t connId, attcDiscCb_t *pCb, uint8_t uuidLen, uint8_t *pUuid);
+
+/*************************************************************************************************/
+/*!
+ * \fn AttcDiscServiceCmpl
+ *
+ * \brief This utility function processes a service discovery result. It should be called
+ * when an ATTC_FIND_BY_TYPE_VALUE_RSP callback event is received after service
+ * discovery is initiated by calling AttcDiscService().
+ *
+ * \param pCb Pointer to discovery control block.
+ * \param pMsg ATT callback event message.
+ *
+ * \return ATT_SUCCESS if successful otherwise error.
+ */
+/*************************************************************************************************/
+uint8_t AttcDiscServiceCmpl(attcDiscCb_t *pCb, attEvt_t *pMsg);
+
+/*************************************************************************************************/
+/*!
+ * \fn AttcDiscCharStart
+ *
+ * \brief This utility function starts characteristic and characteristic descriptor
+ * discovery for a service on a peer device. The service must have been previously
+ * discovered by calling AttcDiscService() and AttcDiscServiceCmpl().
+ *
+ * \param connId DM connection ID.
+ * \param pCb Pointer to discovery control block.
+ *
+ * \return None.
+ */
+/*************************************************************************************************/
+void AttcDiscCharStart(dmConnId_t connId, attcDiscCb_t *pCb);
+
+/*************************************************************************************************/
+/*!
+ * \fn AttcDiscCharCmpl
+ *
+ * \brief This utility function processes a characteristic discovery result. It should be
+ * called when an ATTC_READ_BY_TYPE_RSP or ATTC_FIND_INFO_RSP callback event is
+ * received after characteristic discovery is initiated by calling AttcDiscCharStart().
+ *
+ * \param pCb Pointer to discovery control block.
+ * \param pMsg ATT callback event message.
+ *
+ * \return ATT_CONTINUING if successful and the discovery procedure is continuing.
+ * ATT_SUCCESS if the discovery procedure completed successfully.
+ * Otherwise the discovery procedure failed.
+ */
+/*************************************************************************************************/
+uint8_t AttcDiscCharCmpl(attcDiscCb_t *pCb, attEvt_t *pMsg);
+
+/*************************************************************************************************/
+/*!
+ * \fn AttcDiscConfigStart
+ *
+ * \brief This utility function starts characteristic configuration for characteristics on a
+ * peer device. The characteristics must have been previously discovered by calling
+ * AttcDiscCharStart() and AttcDiscCharCmpl().
+ *
+ * \param connId DM connection ID.
+ * \param pCb Pointer to discovery control block.
+ *
+ * \return ATT_CONTINUING if successful and configuration procedure is continuing.
+ * ATT_SUCCESS if nothing to configure.
+ */
+/*************************************************************************************************/
+uint8_t AttcDiscConfigStart(dmConnId_t connId, attcDiscCb_t *pCb);
+
+/*************************************************************************************************/
+/*!
+ * \fn AttcDiscConfigCmpl
+ *
+ * \brief This utility function initiates the next characteristic configuration procedure.
+ * It should be called when an ATTC_READ_RSP or ATTC_WRITE_RSP callback event is received
+ * after characteristic configuration is initiated by calling AttcDiscConfigStart().
+ *
+ * \param connId DM connection ID.
+ * \param pCb Pointer to discovery control block.
+ *
+ * \return ATT_CONTINUING if successful and configuration procedure is continuing.
+ * ATT_SUCCESS if configuration procedure completed successfully.
+ */
+/*************************************************************************************************/
+uint8_t AttcDiscConfigCmpl(dmConnId_t connId, attcDiscCb_t *pCb);
+
+/*************************************************************************************************/
+/*!
+ * \fn AttcDiscConfigResume
+ *
+ * \brief This utility function resumes the characteristic configuration procedure. It can
+ * be called when an ATTC_READ_RSP or ATTC_WRITE_RSP callback event is received
+ * with failure status to attempt the read or write procedure again.
+ *
+ * \param connId DM connection ID.
+ * \param pCb Pointer to discovery control block.
+ *
+ * \return ATT_CONTINUING if successful and configuration procedure is continuing.
+ * ATT_SUCCESS if configuration procedure completed successfully.
+ */
+/*************************************************************************************************/
+uint8_t AttcDiscConfigResume(dmConnId_t connId, attcDiscCb_t *pCb);
+
+/*************************************************************************************************/
+/*!
+ * \fn AttcMtuReq
+ *
+ * \brief For internal use only.
+ *
+ * \param connId DM connection ID.
+ * \param mtu Attribute protocol MTU.
+ *
+ * \return None.
+ */
+/*************************************************************************************************/
+void AttcMtuReq(dmConnId_t connId, uint16_t mtu);
+
+/*************************************************************************************************/
+/*!
+ * \fn AttsErrorTest
+ *
+ * \brief For testing purposes only.
+ *
+ * \param status ATT status
+ *
+ * \return None.
+ */
+/*************************************************************************************************/
+void AttsErrorTest(uint8_t status);
+
+#ifdef __cplusplus
+};
+#endif
+
+#endif /* ATT_API_H */
