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cy_ble_bms.c
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/***************************************************************************//**
* \file cy_ble_bms.c
* \version 3.60
*
* \brief
* This file contains the source code for the Bond Management service.
*
********************************************************************************
* \copyright
* Copyright 2017-2021, Cypress Semiconductor Corporation. All rights reserved.
* You may use this file only in accordance with the license, terms, conditions,
* disclaimers, and limitations in the end user license agreement accompanying
* the software package with which this file was provided.
*******************************************************************************/
#include "cy_ble_event_handler.h"
#if defined(CY_IP_MXBLESS)
#if CY_BLE_LIB_HOST_CORE
/*******************************************************************************
* Private Function Prototypes
*******************************************************************************/
static cy_en_ble_gatt_err_code_t Cy_BLE_BMS_EventHandler(uint32_t eventCode, void *eventParam);
static cy_en_ble_gatt_err_code_t Cy_BLE_BMSS_EventHandler(uint32_t eventCode, void *eventParam);
static cy_en_ble_gatt_err_code_t Cy_BLE_BMSC_EventHandler(uint32_t eventCode, void *eventParam);
static cy_en_ble_gatt_err_code_t Cy_BLE_BMSS_WriteEventHandler(cy_stc_ble_gatts_write_cmd_req_param_t *eventParam);
static void Cy_BLE_BMSS_PrepareWriteRequestEventHandler(cy_stc_ble_gatts_prep_write_req_param_t *eventParam);
static void Cy_BLE_BMSS_ExecuteWriteRequestEventHandler(cy_stc_ble_gatts_exec_write_req_t *eventParam);
static void Cy_BLE_BMSC_DiscoverCharacteristicsEventHandler(cy_stc_ble_disc_char_info_t *discCharInfo);
static void Cy_BLE_BMSC_DiscoverCharDescriptorsEventHandler(cy_stc_ble_disc_descr_info_t *discDescrInfo);
static void Cy_BLE_BMSC_GetCharRange(cy_stc_ble_disc_range_info_t *charRangeInfo);
static void Cy_BLE_BMSC_ReadResponseEventHandler(cy_stc_ble_gattc_read_rsp_param_t *eventParam);
static void Cy_BLE_BMSC_WriteResponseEventHandler(const cy_stc_ble_conn_handle_t *eventParam);
static void Cy_BLE_BMSC_ErrorResponseEventHandler(const cy_stc_ble_gatt_err_param_t *eventParam);
static void Cy_BLE_BMSC_ExecuteWriteResponseEventHandler(const cy_stc_ble_gattc_exec_write_rsp_t *eventParam);
/*******************************************************************************
* Global Variables
*******************************************************************************/
/* The pointers to the callback functions */
static cy_ble_callback_t Cy_BLE_BMS_ApplCallback = NULL;
static cy_ble_event_handler_cb_t Cy_BLE_BMSC_EventHandlerCallback = NULL;
static cy_ble_event_handler_cb_t Cy_BLE_BMSS_EventHandlerCallback = NULL;
/* The internal storage for the last request handle to check response */
static cy_ble_gatt_db_attr_handle_t cy_ble_bmscReqHandle[CY_BLE_MAX_CONNECTION_INSTANCES];
/* The pointer to a global BLE BMS server config structure */
const cy_stc_ble_bmss_config_t *cy_ble_bmssConfigPtr = NULL;
/* The pointer to a global BLE BMS client config structure */
const cy_stc_ble_bmsc_config_t *cy_ble_bmscConfigPtr = NULL;
/******************************************************************************
* Function Name: Cy_BLE_BMSS_Init
***************************************************************************//**
*
* This function initializes server of the Bond Management service.
*
* \param config: Configuration structure for the BMS.
*
* \return
* \ref cy_en_ble_api_result_t : Return value indicates whether the function succeeded or
* failed. The following are possible error codes.
*
* Error Codes | Description
* ------------ | -----------
* CY_BLE_SUCCESS | The function completed successfully.
* CY_BLE_ERROR_INVALID_PARAMETER | On specifying NULL as input parameter.
* CY_BLE_ERROR_MEMORY_ALLOCATION_FAILED | Buffer overflow in the registration callback.
*
******************************************************************************/
cy_en_ble_api_result_t Cy_BLE_BMSS_Init(const cy_stc_ble_bmss_config_t *config)
{
cy_en_ble_api_result_t apiResult;
if(config == NULL)
{
apiResult = CY_BLE_ERROR_INVALID_PARAMETER;
}
else
{
/* Registers a pointer to config structure */
cy_ble_bmssConfigPtr = config;
/* Registers event handler for the BMS */
apiResult = Cy_BLE_RegisterServiceEventHandler(&Cy_BLE_BMS_EventHandler);
/* Registers a pointer to server event handler function */
Cy_BLE_BMSS_EventHandlerCallback = &Cy_BLE_BMSS_EventHandler;
}
return(apiResult);
}
/******************************************************************************
* Function Name: Cy_BLE_BMSC_Init
***************************************************************************//**
*
* This function initializes client of the Bond Management service.
*
* \param config: Configuration structure for the BMS.
*
* \return
* \ref cy_en_ble_api_result_t : Return value indicates whether the function succeeded or
* failed. The following are possible error codes.
*
* Error Codes | Description
* ------------ | -----------
* CY_BLE_SUCCESS | The function completed successfully.
* CY_BLE_ERROR_INVALID_PARAMETER | On specifying NULL as input parameter.
* CY_BLE_ERROR_MEMORY_ALLOCATION_FAILED | Buffer overflow in the registration callback.
*
******************************************************************************/
cy_en_ble_api_result_t Cy_BLE_BMSC_Init(const cy_stc_ble_bmsc_config_t *config)
{
cy_en_ble_api_result_t apiResult;
if((config == NULL) || ((cy_ble_configPtr->params->gattRole & CY_BLE_GATT_CLIENT) == 0u))
{
apiResult = CY_BLE_ERROR_INVALID_PARAMETER;
}
else
{
uint32_t idx;
/* Registers a pointer to config structure */
cy_ble_bmscConfigPtr = config;
/* Registers event handler for the BMS */
apiResult = Cy_BLE_RegisterServiceEventHandler(&Cy_BLE_BMS_EventHandler);
/* Registers a pointer to client event handler function */
Cy_BLE_BMSC_EventHandlerCallback = &Cy_BLE_BMSC_EventHandler;
for(idx = 0u; idx < cy_ble_configPtr->params->maxClientCount; idx++)
{
uint32 servCnt = cy_ble_configPtr->context->discServiCount;
uint32 bmsServIdx = cy_ble_bmscConfigPtr->serviceDiscIdx;
if(cy_ble_configPtr->context->serverInfo[(idx * servCnt) + bmsServIdx].range.startHandle ==
CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE)
{
/* Get pointer to BMS client structure */
cy_stc_ble_bmsc_t *bmscPtr = (cy_stc_ble_bmsc_t *)&cy_ble_bmscConfigPtr->attrInfo[idx];
/* Clean client structure */
(void)memset(bmscPtr, 0, sizeof(cy_stc_ble_bmsc_t));
/* Initialize uuid */
cy_ble_configPtr->context->serverInfo[(idx * servCnt) + bmsServIdx].uuid =
CY_BLE_UUID_BOND_MANAGEMENT_SERVICE;
}
cy_ble_bmscReqHandle[idx] = CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE;
}
}
return(apiResult);
}
/******************************************************************************
* Function Name: Cy_BLE_BMS_RegisterAttrCallback
***************************************************************************//**
*
* Registers a callback function for service-specific attribute operations.
* Service-specific Write Requests from the peer device will not be handled with
* an unregistered callback function.
*
* \param callbackFunc: An application layer event callback function to receive
* events from the PSoC 6 BLE Middleware. The definition of \ref cy_ble_callback_t
* for BMS service is:<br>
* typedef void (* cy_ble_callback_t) (uint32_t eventCode, void *eventParam),
* where:
* * eventCode: Indicates the event that triggered this callback.
(e.g. #CY_BLE_EVT_BMSS_WRITE_CHAR).
* * eventParam: Contains the parameters corresponding to the
* current event; (e.g. pointer to \ref cy_stc_ble_bms_char_value_t
* structure that contains details of the characteristic
* for which the notification enabled event was triggered).
*
******************************************************************************/
void Cy_BLE_BMS_RegisterAttrCallback(cy_ble_callback_t callbackFunc)
{
Cy_BLE_BMS_ApplCallback = callbackFunc;
}
/******************************************************************************
* Function Name: Cy_BLE_BMSS_SetCharacteristicValue
***************************************************************************//**
*
* Sets a characteristic value of Bond Management service, which is a value
* identified by charIndex, to the local database.
*
* \param charIndex: The index of the service characteristic of type
* \ref cy_en_ble_bms_char_index_t. The valid values are,
* * \ref CY_BLE_BMS_BMCP
* * \ref CY_BLE_BMS_BMFT
* \param attrSize: The size of the characteristic value attribute.
* \param attrValue: The pointer to the characteristic value data that should be
* stored in the GATT database.
*
* \return
* A return value of type \ref cy_en_ble_api_result_t.
*
* Error Codes | Description
* ------------ | -----------
* CY_BLE_SUCCESS | The request was handled successfully.
* CY_BLE_ERROR_INVALID_PARAMETER | Validation of the input parameter failed.
* CY_BLE_ERROR_GATT_DB_INVALID_ATTR_HANDLE| An optional characteristic is absent.
*
******************************************************************************/
cy_en_ble_api_result_t Cy_BLE_BMSS_SetCharacteristicValue(cy_en_ble_bms_char_index_t charIndex,
uint8_t attrSize,
uint8_t *attrValue)
{
cy_en_ble_api_result_t apiResult;
/* Check the parameters */
if(charIndex >= CY_BLE_BMS_CHAR_COUNT)
{
apiResult = CY_BLE_ERROR_INVALID_PARAMETER;
}
else if(cy_ble_bmssConfigPtr->attrInfo->charInfo[charIndex].charHandle == CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE)
{
apiResult = CY_BLE_ERROR_GATT_DB_INVALID_ATTR_HANDLE;
}
else
{
/* Store a characteristic value into the GATT database */
cy_stc_ble_gatts_db_attr_val_info_t dbAttrValInfo;
dbAttrValInfo.connHandle.bdHandle = 0u;
dbAttrValInfo.connHandle.attId = 0u;
dbAttrValInfo.handleValuePair.attrHandle = cy_ble_bmssConfigPtr->attrInfo->charInfo[charIndex].charHandle;
dbAttrValInfo.handleValuePair.value.len = attrSize;
dbAttrValInfo.handleValuePair.value.val = attrValue;
dbAttrValInfo.offset = 0u;
dbAttrValInfo.flags = CY_BLE_GATT_DB_LOCALLY_INITIATED;
if(Cy_BLE_GATTS_WriteAttributeValueCCCD(&dbAttrValInfo) != CY_BLE_GATT_ERR_NONE)
{
apiResult = CY_BLE_ERROR_INVALID_PARAMETER;
}
else
{
apiResult = CY_BLE_SUCCESS;
}
}
return(apiResult);
}
/******************************************************************************
* Function Name: Cy_BLE_BMSS_GetCharacteristicValue
***************************************************************************//**
*
* Gets a characteristic value of Bond Management service. The value is
* identified by charIndex.
*
* \param charIndex: The index of the service characteristic of
* \ref cy_en_ble_bms_char_index_t. The valid values are,
* * \ref CY_BLE_BMS_BMCP
* * \ref CY_BLE_BMS_BMFT
* \param attrSize: The size of the characteristic value attribute.
* \param attrValue: The pointer to the location where Characteristic value data should
* be stored.
*
* \return
* A return value of type \ref cy_en_ble_api_result_t.
*
* Error Codes | Description
* ------------ | -----------
* CY_BLE_SUCCESS | The characteristic value was read successfully.
* CY_BLE_ERROR_INVALID_PARAMETER | Validation of the input parameter failed.
* CY_BLE_ERROR_GATT_DB_INVALID_ATTR_HANDLE | An optional characteristic is absent.
*
******************************************************************************/
cy_en_ble_api_result_t Cy_BLE_BMSS_GetCharacteristicValue(cy_en_ble_bms_char_index_t charIndex,
uint8_t attrSize,
uint8_t *attrValue)
{
cy_en_ble_api_result_t apiResult;
/* Check the parameters */
if(charIndex >= CY_BLE_BMS_CHAR_COUNT)
{
apiResult = CY_BLE_ERROR_INVALID_PARAMETER;
}
else if(cy_ble_bmssConfigPtr->attrInfo->charInfo[charIndex].charHandle == CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE)
{
apiResult = CY_BLE_ERROR_GATT_DB_INVALID_ATTR_HANDLE;
}
else
{
/* Get the characteristic value from the GATT database */
cy_stc_ble_gatts_db_attr_val_info_t dbAttrValInfo;
dbAttrValInfo.connHandle.bdHandle = 0u;
dbAttrValInfo.connHandle.attId = 0u;
dbAttrValInfo.handleValuePair.attrHandle = cy_ble_bmssConfigPtr->attrInfo->charInfo[charIndex].charHandle;
dbAttrValInfo.handleValuePair.value.len = attrSize;
dbAttrValInfo.handleValuePair.value.val = attrValue;
dbAttrValInfo.offset = 0u;
dbAttrValInfo.flags = CY_BLE_GATT_DB_LOCALLY_INITIATED;
if(Cy_BLE_GATTS_ReadAttributeValueCCCD(&dbAttrValInfo) != CY_BLE_GATT_ERR_NONE)
{
apiResult = CY_BLE_ERROR_INVALID_PARAMETER;
}
else
{
apiResult = CY_BLE_SUCCESS;
}
}
return(apiResult);
}
/******************************************************************************
* Function Name: Cy_BLE_BMSS_SetCharacteristicDescriptor
***************************************************************************//**
*
* Sets a characteristic descriptor of the specified characteristic of the
* Bond Management service.
*
* \param connHandle: The connection handle.
* \param charIndex: The index of the service characteristic of
* \ref cy_en_ble_bms_char_index_t. The valid values are,
* * \ref CY_BLE_BMS_BMCP
* * \ref CY_BLE_BMS_BMFT
* \param descrIndex: The index of the service characteristic descriptor of type
* \ref cy_en_ble_bms_descr_index_t. The valid value is
* * \ref CY_BLE_BMS_CEPD
* \param attrSize: The size of the characteristic descriptor attribute.
* \param attrValue: The pointer to the descriptor value data that should
* be stored to the GATT database.
*
* \return
* A return value of type \ref cy_en_ble_api_result_t.
*
* Error Codes | Description
* ------------ | -----------
* CY_BLE_SUCCESS | The characteristic descriptor value was read successfully.
* CY_BLE_ERROR_INVALID_PARAMETER | Validation of the input parameter failed.
*
******************************************************************************/
cy_en_ble_api_result_t Cy_BLE_BMSS_SetCharacteristicDescriptor(cy_stc_ble_conn_handle_t connHandle,
cy_en_ble_bms_char_index_t charIndex,
cy_en_ble_bms_descr_index_t descrIndex,
uint8_t attrSize,
uint8_t *attrValue)
{
cy_en_ble_api_result_t apiResult = CY_BLE_SUCCESS;
if((charIndex >= CY_BLE_BMS_CHAR_COUNT) || (descrIndex >= CY_BLE_BMS_DESCR_COUNT))
{
apiResult = CY_BLE_ERROR_INVALID_PARAMETER;
}
else
{
cy_stc_ble_gatts_db_attr_val_info_t dbAttrValInfo;
dbAttrValInfo.handleValuePair.attrHandle = cy_ble_bmssConfigPtr->attrInfo->charInfo[charIndex].descrHandle[descrIndex];
dbAttrValInfo.handleValuePair.value.len = attrSize;
dbAttrValInfo.handleValuePair.value.val = attrValue;
dbAttrValInfo.connHandle = connHandle;
dbAttrValInfo.offset = 0u;
dbAttrValInfo.flags = CY_BLE_GATT_DB_LOCALLY_INITIATED;
if(Cy_BLE_GATTS_WriteAttributeValueCCCD(&dbAttrValInfo) != CY_BLE_GATT_ERR_NONE)
{
apiResult = CY_BLE_ERROR_INVALID_PARAMETER;
}
}
return(apiResult);
}
/******************************************************************************
* Function Name: Cy_BLE_BMSS_GetCharacteristicDescriptor
***************************************************************************//**
*
* Gets a characteristic descriptor of the specified characteristic of the
* Bond Management service.
*
* \param connHandle: The connection handle.
* \param charIndex: The index of the service characteristic of
* \ref cy_en_ble_bms_char_index_t. The valid values are,
* * \ref CY_BLE_BMS_BMCP
* * \ref CY_BLE_BMS_BMFT
* \param descrIndex: The index of the service characteristic descriptor of type
* \ref cy_en_ble_bms_descr_index_t. The valid value is
* * \ref CY_BLE_BMS_CEPD
* \param attrSize: The size of the characteristic descriptor attribute.
* \param attrValue: The pointer to the location where characteristic descriptor
* value data should be stored.
*
* \return
* A return value of type \ref cy_en_ble_api_result_t.
*
* Error Codes | Description
* ------------ | -----------
* CY_BLE_SUCCESS | The characteristic descriptor value was read successfully.
* CY_BLE_ERROR_INVALID_PARAMETER | Validation of the input parameter failed.
*
******************************************************************************/
cy_en_ble_api_result_t Cy_BLE_BMSS_GetCharacteristicDescriptor(cy_stc_ble_conn_handle_t connHandle,
cy_en_ble_bms_char_index_t charIndex,
cy_en_ble_bms_descr_index_t descrIndex,
uint8_t attrSize,
uint8_t *attrValue)
{
cy_en_ble_api_result_t apiResult = CY_BLE_SUCCESS;
if((charIndex >= CY_BLE_BMS_CHAR_COUNT) || (descrIndex >= CY_BLE_BMS_DESCR_COUNT))
{
apiResult = CY_BLE_ERROR_INVALID_PARAMETER;
}
else
{
cy_stc_ble_gatts_db_attr_val_info_t dbAttrValInfo;
dbAttrValInfo.handleValuePair.attrHandle = cy_ble_bmssConfigPtr->attrInfo->charInfo[charIndex].descrHandle[descrIndex];
dbAttrValInfo.handleValuePair.value.len = attrSize;
dbAttrValInfo.handleValuePair.value.val = attrValue;
dbAttrValInfo.offset = 0u;
dbAttrValInfo.connHandle = connHandle;
dbAttrValInfo.flags = CY_BLE_GATT_DB_LOCALLY_INITIATED;
if(Cy_BLE_GATTS_ReadAttributeValueCCCD(&dbAttrValInfo) != CY_BLE_GATT_ERR_NONE)
{
apiResult = CY_BLE_ERROR_INVALID_PARAMETER;
}
}
return(apiResult);
}
/******************************************************************************
* Function Name: Cy_BLE_BMSS_WriteEventHandler
***************************************************************************//**
*
* Handles a Write Request event. Calls the registered BMS application
* callback function.
*
* Note: Writing an attribute into GATT DB (if needed) is the user's responsibility
* after the Authorization Code check in the registered BMS application
* callback function.
*
* \param eventParam: The pointer to the data structure specified by the event.
*
* \return
* cy_en_ble_gatt_err_code_t - A function result state if it succeeded
* (CY_BLE_GATT_ERR_NONE) or failed with error codes:
* * CY_BLE_GATT_ERR_OP_CODE_NOT_SUPPORTED
* * CY_BLE_GATT_ERR_INSUFFICIENT_AUTHORIZATION
*
*
******************************************************************************/
static cy_en_ble_gatt_err_code_t Cy_BLE_BMSS_WriteEventHandler(cy_stc_ble_gatts_write_cmd_req_param_t *eventParam)
{
cy_stc_ble_bms_char_value_t locCharValue;
locCharValue.connHandle = eventParam->connHandle;
locCharValue.gattErrorCode = CY_BLE_GATT_ERR_NONE;
if((Cy_BLE_BMS_ApplCallback != NULL) &&
(eventParam->handleValPair.attrHandle == cy_ble_bmssConfigPtr->attrInfo->charInfo[CY_BLE_BMS_BMCP].charHandle))
{
locCharValue.gattErrorCode =
Cy_BLE_GATT_DbCheckPermission(eventParam->handleValPair.attrHandle, &eventParam->connHandle,
CY_BLE_GATT_DB_WRITE | CY_BLE_GATT_DB_PEER_INITIATED);
if(locCharValue.gattErrorCode == CY_BLE_GATT_ERR_NONE)
{
locCharValue.charIndex = CY_BLE_BMS_BMCP;
locCharValue.value = &eventParam->handleValPair.value;
Cy_BLE_BMS_ApplCallback((uint32_t)CY_BLE_EVT_BMSS_WRITE_CHAR, &locCharValue);
if(locCharValue.gattErrorCode == CY_BLE_GATT_ERR_NONE)
{
cy_stc_ble_gatts_db_attr_val_info_t dbAttrValInfo;
dbAttrValInfo.handleValuePair = eventParam->handleValPair;
dbAttrValInfo.connHandle = eventParam->connHandle;
dbAttrValInfo.offset = 0u;
dbAttrValInfo.flags = CY_BLE_GATT_DB_PEER_INITIATED;
locCharValue.gattErrorCode = Cy_BLE_GATTS_WriteAttributeValueCCCD(&dbAttrValInfo);
if(locCharValue.gattErrorCode == CY_BLE_GATT_ERR_NONE)
{
CY_BLE_GATT_DB_ATTR_SET_ATTR_GEN_LEN(cy_ble_bmssConfigPtr->attrInfo->charInfo[CY_BLE_BMS_BMCP].charHandle,
locCharValue.value->len);
}
}
}
/* Indicate that the request was handled */
cy_ble_eventHandlerFlag &= (uint8_t) ~CY_BLE_CALLBACK;
}
return(locCharValue.gattErrorCode);
}
/******************************************************************************
* Function Name: Cy_BLE_BMSS_PrepareWriteRequestEventHandler
***************************************************************************//**
*
* Handles a Prepare Write Request event.
*
* \param eventParam: The pointer to the data that came with a Prepare Write request.
*
******************************************************************************/
static void Cy_BLE_BMSS_PrepareWriteRequestEventHandler(cy_stc_ble_gatts_prep_write_req_param_t *eventParam)
{
if(eventParam->baseAddr[eventParam->currentPrepWriteReqCount - 1u].handleValuePair.attrHandle ==
cy_ble_bmssConfigPtr->attrInfo->charInfo[CY_BLE_BMS_BMCP].charHandle)
{
cy_stc_ble_gatt_xchg_mtu_param_t mtuParam = { .connHandle = eventParam->connHandle };
(void)Cy_BLE_GATT_GetMtuSize(&mtuParam);
if(((cy_ble_bmssConfigPtr->attrInfo->charInfo[CY_BLE_BMS_BMCP].descrHandle[CY_BLE_BMS_CEPD] !=
CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE) &&
CY_BLE_IS_RELIABLE_WRITE_ENABLED(cy_ble_bmssConfigPtr->attrInfo->
charInfo[CY_BLE_BMS_BMCP].descrHandle[CY_BLE_BMS_CEPD])) ||
(CY_BLE_GATT_DB_ATTR_GET_ATTR_GEN_MAX_LEN(cy_ble_bmssConfigPtr->attrInfo->charInfo[CY_BLE_BMS_BMCP].charHandle) >
(mtuParam.mtu - CY_BLE_GATT_WRITE_HEADER_LEN)))
{
/* The first prepare write event */
}
else
{
eventParam->gattErrorCode = (uint8_t)CY_BLE_GATT_ERR_ATTRIBUTE_NOT_LONG;
}
/* Indicate that the request was handled */
cy_ble_eventHandlerFlag &= (uint8_t) ~CY_BLE_CALLBACK;
}
}
/******************************************************************************
* Function Name: Cy_BLE_BMSS_ExecuteWriteRequestEventHandler
***************************************************************************//**
*
* Handles an Execute Write Request event.
*
* \param eventParam: The pointer to the data that came with a Write Request.
*
******************************************************************************/
static void Cy_BLE_BMSS_ExecuteWriteRequestEventHandler(cy_stc_ble_gatts_exec_write_req_t *eventParam)
{
uint32_t locCount;
cy_stc_ble_gatt_value_t locGattValue;
locGattValue.len = 0u;
locGattValue.val = NULL;
for(locCount = 0u; locCount < eventParam->prepWriteReqCount; locCount++)
{
if(eventParam->baseAddr[locCount].handleValuePair.attrHandle ==
cy_ble_bmssConfigPtr->attrInfo->charInfo[CY_BLE_BMS_BMCP].charHandle)
{
locGattValue.len = eventParam->baseAddr[locCount].offset + eventParam->baseAddr[locCount].
handleValuePair.value.len;
if(locGattValue.val == NULL)
{
locGattValue.val = eventParam->baseAddr[locCount].handleValuePair.value.val;
}
else if(eventParam->baseAddr[locCount].offset == 0u)
{
/* The case when the client wants to rewrite the value from the start */
locGattValue.val = eventParam->baseAddr[locCount].handleValuePair.value.val;
}
else
{
/* Do nothing */
}
}
}
if((Cy_BLE_BMS_ApplCallback != NULL) && (locGattValue.len != 0u) &&
(locGattValue.len <= CY_BLE_GATT_DB_ATTR_GET_ATTR_GEN_MAX_LEN(cy_ble_bmssConfigPtr->attrInfo->charInfo[CY_BLE_BMS_BMCP].
charHandle)))
{
/* Check the execWriteFlag before executing or canceling the Write Long operation */
if(eventParam->execWriteFlag == CY_BLE_GATT_EXECUTE_WRITE_EXEC_FLAG)
{
cy_stc_ble_bms_char_value_t locCharValue = { .connHandle = eventParam->connHandle };
locCharValue.gattErrorCode = CY_BLE_GATT_ERR_NONE;
locCharValue.value = &locGattValue;
Cy_BLE_BMS_ApplCallback((uint32_t)CY_BLE_EVT_BMSS_WRITE_CHAR, &locCharValue);
if(locCharValue.gattErrorCode == CY_BLE_GATT_ERR_NONE)
{
CY_BLE_GATT_DB_ATTR_SET_ATTR_GEN_LEN(cy_ble_bmssConfigPtr->attrInfo->
charInfo[CY_BLE_BMS_BMCP].charHandle, locGattValue.len);
}
eventParam->gattErrorCode = (uint8_t)locCharValue.gattErrorCode;
}
/* Indicate that the request was handled */
cy_ble_eventHandlerFlag &= (uint8_t) ~CY_BLE_CALLBACK;
}
}
/******************************************************************************
* Function Name: Cy_BLE_BMSC_GetCharacteristicValue
***************************************************************************//**
*
* Sends a request to the peer device to get a characteristic value, as
* identified by its charIndex.
*
* \param connHandle: The connection handle.
* \param charIndex: The index of the service characteristic of
* \ref cy_en_ble_bms_char_index_t. The valid values are,
* * \ref CY_BLE_BMS_BMCP
* * \ref CY_BLE_BMS_BMFT
*
* \return
* A return value of type \ref cy_en_ble_api_result_t.
*
* Error Codes | Description
* ------------ | -----------
* CY_BLE_SUCCESS | The request was sent successfully.
* CY_BLE_ERROR_INVALID_PARAMETER | Validation of the input parameter failed.
* CY_BLE_ERROR_INVALID_OPERATION | Operation is invalid for this characteristic.
* CY_BLE_ERROR_INVALID_STATE | Connection with the server is not established.
* CY_BLE_ERROR_MEMORY_ALLOCATION_FAILED | Memory allocation failed.
* CY_BLE_ERROR_GATT_DB_INVALID_ATTR_HANDLE | The peer device doesn't have the particular characteristic.
*
* \events
* If execution is successful(return value = \ref CY_BLE_SUCCESS),
* these events can appear: \n
* If a BMS service-specific callback is registered
* with \ref Cy_BLE_BMS_RegisterAttrCallback():
* * \ref CY_BLE_EVT_BMSC_READ_CHAR_RESPONSE - if the requested attribute is
* successfully read on the peer device, the details (charIndex ,
* value, etc.) are provided with an event parameter structure
* of type \ref cy_stc_ble_bms_char_value_t.
* .
* Otherwise (if a BMS service-specific callback is not registered):
* * \ref CY_BLE_EVT_GATTC_READ_RSP - if the requested attribute is
* successfully read on the peer device, the details (handle,
* value, etc.) are provided with the event parameters structure
* \ref cy_stc_ble_gattc_read_rsp_param_t.
* * \ref CY_BLE_EVT_GATTC_ERROR_RSP - If an error occurred with the
* requested attribute on the peer device, the details are provided
* with the event parameters structure \ref cy_stc_ble_gatt_err_param_t.
*
******************************************************************************/
cy_en_ble_api_result_t Cy_BLE_BMSC_GetCharacteristicValue(cy_stc_ble_conn_handle_t connHandle,
cy_en_ble_bms_char_index_t charIndex)
{
cy_en_ble_api_result_t apiResult;
uint32_t discIdx = Cy_BLE_GetDiscoveryIdx(connHandle);
/* Get pointer (with offset) to BMS client structure with attribute handles */
cy_stc_ble_bmsc_t *bmscPtr = (cy_stc_ble_bmsc_t *)&cy_ble_bmscConfigPtr->attrInfo[discIdx];
/* Check the parameters */
if(Cy_BLE_GetConnectionState(connHandle) != CY_BLE_CONN_STATE_CLIENT_DISCOVERED)
{
apiResult = CY_BLE_ERROR_INVALID_STATE;
}
else if((charIndex != CY_BLE_BMS_BMFT) || (discIdx >= cy_ble_configPtr->params->maxClientCount))
{
apiResult = CY_BLE_ERROR_INVALID_PARAMETER;
}
else if(bmscPtr->charInfo[charIndex].valueHandle == CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE)
{
apiResult = CY_BLE_ERROR_GATT_DB_INVALID_ATTR_HANDLE;
}
else if((CY_BLE_CHAR_PROP_READ & bmscPtr->charInfo[charIndex].properties) == 0u)
{
apiResult = CY_BLE_ERROR_INVALID_OPERATION;
}
else
{
cy_stc_ble_gattc_read_req_t readReqParam;
readReqParam.attrHandle = bmscPtr->charInfo[CY_BLE_BMS_BMFT].valueHandle;
readReqParam.connHandle = connHandle;
apiResult = Cy_BLE_GATTC_ReadCharacteristicValue(&readReqParam);
if(apiResult == CY_BLE_SUCCESS)
{
cy_ble_bmscReqHandle[discIdx] = bmscPtr->charInfo[charIndex].valueHandle;
}
}
return(apiResult);
}
/******************************************************************************
* Function Name: Cy_BLE_BMSC_SetCharacteristicValue
***************************************************************************//**
*
* This function is used to write the characteristic (which is identified by
* charIndex) value attribute in the server. The function supports the Write Long
* procedure - it depends on the attrSize parameter - if it is larger than the
* current MTU size - 1, then the Write Long will be executed.
* As a result, a Write Request is sent to the GATT Server and on successful
* execution of the request on the server side, a \ref CY_BLE_EVT_BMSS_WRITE_CHAR
* event is generated.
* On successful request execution on the server side, the Write Response is
* sent to the client.
*
* \param connHandle: The connection handle.
* \param charIndex: The index of the service characteristic of
* \ref cy_en_ble_bms_char_index_t. The valid values are,
* * \ref CY_BLE_BMS_BMCP
* * \ref CY_BLE_BMS_BMFT
* \param attrSize: The size of the characteristic value attribute.
* \param attrValue: The pointer to the characteristic value data that should be
* sent to the server device.
*
* \return
* A return value of type \ref cy_en_ble_api_result_t.
*
* Error Codes | Description
* ------------ | -----------
* CY_BLE_SUCCESS | The request was sent successfully.
* CY_BLE_ERROR_INVALID_PARAMETER | Validation of the input parameter failed.
* CY_BLE_ERROR_INVALID_OPERATION | Operation is invalid for this characteristic.
* CY_BLE_ERROR_GATT_DB_INVALID_ATTR_HANDLE | The peer device doesn't have the particular characteristic.
* CY_BLE_ERROR_INVALID_STATE | Connection with the server is not established.
* CY_BLE_ERROR_MEMORY_ALLOCATION_FAILED | Memory allocation failed.
*
* \events
* If execution is successful(return value = \ref CY_BLE_SUCCESS),
* these events can appear: \n
* If a BMS service-specific callback is registered
* with \ref Cy_BLE_BMS_RegisterAttrCallback():
* * \ref CY_BLE_EVT_BMSC_WRITE_CHAR_RESPONSE - if the requested attribute is
* successfully written on the peer device, the details (charIndex, etc.)
* are provided with an event parameter structure of type
* \ref cy_stc_ble_bms_char_value_t.
* .
* Otherwise (if a BMS service-specific callback is not registered):
* * \ref CY_BLE_EVT_GATTC_EXEC_WRITE_RSP - if the requested attribute is
* successfully written on the peer device.
* * #CY_BLE_EVT_GATTC_ERROR_RSP - In case if an error occurred with the
* requested attribute on the peer device, the details are provided with event
* parameters structure \ref cy_stc_ble_gatt_err_param_t.
*
******************************************************************************/
cy_en_ble_api_result_t Cy_BLE_BMSC_SetCharacteristicValue(cy_stc_ble_conn_handle_t connHandle,
cy_en_ble_bms_char_index_t charIndex,
uint8_t attrSize,
uint8_t * attrValue)
{
cy_en_ble_api_result_t apiResult;
uint32_t discIdx = Cy_BLE_GetDiscoveryIdx(connHandle);
cy_stc_ble_gatt_xchg_mtu_param_t mtuParam = { .connHandle = connHandle };
/* Get pointer (with offset) to BMS client structure with attribute handles */
cy_stc_ble_bmsc_t *bmscPtr = (cy_stc_ble_bmsc_t *)&cy_ble_bmscConfigPtr->attrInfo[discIdx];
(void)Cy_BLE_GATT_GetMtuSize(&mtuParam);
/* Check the parameters */
if(Cy_BLE_GetConnectionState(connHandle) != CY_BLE_CONN_STATE_CLIENT_DISCOVERED)
{
apiResult = CY_BLE_ERROR_INVALID_STATE;
}
else if((charIndex != CY_BLE_BMS_BMCP) || (discIdx >= cy_ble_configPtr->params->maxClientCount))
{
apiResult = CY_BLE_ERROR_INVALID_PARAMETER;
}
else if(bmscPtr->charInfo[CY_BLE_BMS_BMCP].valueHandle == CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE)
{
apiResult = CY_BLE_ERROR_GATT_DB_INVALID_ATTR_HANDLE;
}
else if((CY_BLE_CHAR_PROP_WRITE & bmscPtr->charInfo[CY_BLE_BMS_BMCP].properties) == 0u)
{
apiResult = CY_BLE_ERROR_INVALID_OPERATION;
}
else if((mtuParam.mtu - CY_BLE_GATT_WRITE_HEADER_LEN) < attrSize)
{
cy_stc_ble_gattc_prep_write_req_t prepWriteReqParam;
prepWriteReqParam.handleValOffsetPair.handleValuePair.attrHandle = bmscPtr->charInfo[CY_BLE_BMS_BMCP].valueHandle;
prepWriteReqParam.handleValOffsetPair.handleValuePair.value.val = attrValue;
prepWriteReqParam.handleValOffsetPair.handleValuePair.value.len = attrSize;
prepWriteReqParam.handleValOffsetPair.offset = 0u;
prepWriteReqParam.connHandle = connHandle;
apiResult = Cy_BLE_GATTC_WriteLongCharacteristicValues(&prepWriteReqParam);
if(apiResult == CY_BLE_SUCCESS)
{
cy_ble_bmscReqHandle[discIdx] = bmscPtr->charInfo[CY_BLE_BMS_BMCP].valueHandle;
}
}
else
{
cy_stc_ble_gattc_write_req_t writeReqParam;
writeReqParam.handleValPair.attrHandle = bmscPtr->charInfo[CY_BLE_BMS_BMCP].valueHandle;
writeReqParam.handleValPair.value.val = attrValue;
writeReqParam.handleValPair.value.len = attrSize;
writeReqParam.connHandle = connHandle;
apiResult = Cy_BLE_GATTC_WriteCharacteristicValue(&writeReqParam);
if(apiResult == CY_BLE_SUCCESS)
{
cy_ble_bmscReqHandle[discIdx] = bmscPtr->charInfo[CY_BLE_BMS_BMCP].valueHandle;
}
}
return(apiResult);
}
/******************************************************************************
* Function Name: Cy_BLE_BMSC_ReliableWriteCharacteristicValue
***************************************************************************//**
*
* Performs a Reliable Write command for the Bond Management Control Point
* characteristic (identified by charIndex) value attribute to the server.
*
* The Write Response only confirms the operation success.
*
* \param connHandle: The connection handle.
* \param charIndex: The index of the service characteristic of
* \ref cy_en_ble_bms_char_index_t. The valid values are,
* * \ref CY_BLE_BMS_BMCP
* \param charIndex: The index of a service characteristic.
* \param attrSize: The size of the characteristic value attribute.
* \param attrValue: The pointer to the characteristic value data that should be
* sent to the server device.
*
* \return
* A return value of type \ref cy_en_ble_api_result_t.
*
* Error Codes | Description
* ------------ | -----------
* CY_BLE_SUCCESS | The request was sent successfully.
* CY_BLE_ERROR_INVALID_PARAMETER | Validation of the input parameter failed.
* CY_BLE_ERROR_INVALID_OPERATION | Operation is invalid for this characteristic.
* CY_BLE_ERROR_GATT_DB_INVALID_ATTR_HANDLE | The peer device doesn't have the particular characteristic.
* CY_BLE_ERROR_INVALID_STATE | Connection with the server is not established.
* CY_BLE_ERROR_MEMORY_ALLOCATION_FAILED | Memory allocation failed.
*
* \events
* If execution is successful(return value = \ref CY_BLE_SUCCESS),
* these events can appear: \n
* If a BMS service-specific callback is registered
* with \ref Cy_BLE_BMS_RegisterAttrCallback():
* * \ref CY_BLE_EVT_BMSC_WRITE_CHAR_RESPONSE - if the requested attribute is
* successfully written on the peer device, the details (charIndex, etc.)
* are provided with an event parameter structure of type
* \ref cy_stc_ble_bms_char_value_t.
* .
* Otherwise (if a BMS service-specific callback is not registered):
* * \ref CY_BLE_EVT_GATTC_EXEC_WRITE_RSP - if the requested attribute is
* successfully written on the peer device.
* * #CY_BLE_EVT_GATTC_ERROR_RSP - In case if an error occurred with the
* requested attribute on the peer device, the details are provided with event
* parameters structure \ref cy_stc_ble_gatt_err_param_t.
*
******************************************************************************/
cy_en_ble_api_result_t Cy_BLE_BMSC_ReliableWriteCharacteristicValue(cy_stc_ble_conn_handle_t connHandle,
cy_en_ble_bms_char_index_t charIndex,
uint8_t attrSize,
uint8_t * attrValue)
{
cy_en_ble_api_result_t apiResult;
uint32_t discIdx = Cy_BLE_GetDiscoveryIdx(connHandle);
/* Get pointer (with offset) to BMS client structure with attribute handles */
cy_stc_ble_bmsc_t *bmscPtr = (cy_stc_ble_bmsc_t *)&cy_ble_bmscConfigPtr->attrInfo[discIdx];
/* Check the parameters */
if(Cy_BLE_GetConnectionState(connHandle) != CY_BLE_CONN_STATE_CLIENT_DISCOVERED)
{
apiResult = CY_BLE_ERROR_INVALID_STATE;
}
else if((charIndex != CY_BLE_BMS_BMCP) || (discIdx >= cy_ble_configPtr->params->maxClientCount))
{
apiResult = CY_BLE_ERROR_INVALID_PARAMETER;
}
else if(bmscPtr->charInfo[CY_BLE_BMS_BMCP].valueHandle == CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE)
{
apiResult = CY_BLE_ERROR_GATT_DB_INVALID_ATTR_HANDLE;
}
else if((CY_BLE_CHAR_PROP_EXTENDED_PROPERTIES & bmscPtr->charInfo[CY_BLE_BMS_BMCP].properties) == 0u)
{
apiResult = CY_BLE_ERROR_INVALID_OPERATION;
}
else
{
cy_stc_ble_gattc_reliable_write_req_t prepWriteReqParam;
prepWriteReqParam.connHandle = connHandle;
cy_stc_ble_gatt_handle_value_offset_param_t handleValOffsetPairParam;
handleValOffsetPairParam.handleValuePair.attrHandle = bmscPtr->charInfo[CY_BLE_BMS_BMCP].valueHandle;
handleValOffsetPairParam.handleValuePair.value.val = attrValue;
handleValOffsetPairParam.handleValuePair.value.len = attrSize;
handleValOffsetPairParam.offset = 0u;
prepWriteReqParam.handleValOffsetPair = &handleValOffsetPairParam;
prepWriteReqParam.numOfRequests = 1u;
apiResult = Cy_BLE_GATTC_ReliableWrites(&prepWriteReqParam);
if(apiResult == CY_BLE_SUCCESS)
{
cy_ble_bmscReqHandle[discIdx] = bmscPtr->charInfo[CY_BLE_BMS_BMCP].valueHandle;
}
}
return(apiResult);
}
/******************************************************************************
* Function Name: Cy_BLE_BMSC_GetCharacteristicDescriptor
***************************************************************************//**
*
* Sends a request to the peer device to get the characteristic descriptor of the
* specified characteristic of Bond Management service.
*
* \param connHandle: The connection handle.
* \param charIndex: The index of the service characteristic of
* \ref cy_en_ble_bms_char_index_t. The valid values are,
* * \ref CY_BLE_BMS_BMCP
* * \ref CY_BLE_BMS_BMFT
* \param descrIndex: The index of the service characteristic descriptor of type
* \ref cy_en_ble_bms_descr_index_t. The valid value is
* * \ref CY_BLE_BMS_CEPD
*
* \return
* A return value of type \ref cy_en_ble_api_result_t.
*
* Error Codes | Description
* ------------ | -----------
* CY_BLE_SUCCESS | The request was sent successfully.
* CY_BLE_ERROR_INVALID_PARAMETER | Validation of the input parameter failed.
* CY_BLE_ERROR_INVALID_OPERATION | This operation is not permitted on the specified attribute.
* CY_BLE_ERROR_INVALID_STATE | The state is not valid.
* CY_BLE_ERROR_MEMORY_ALLOCATION_FAILED | Memory allocation failed.
* CY_BLE_ERROR_GATT_DB_INVALID_ATTR_HANDLE | The peer device doesn't have the particular descriptor.
*
* \events
* In case of successful execution (return value = #CY_BLE_SUCCESS)
* the following events can appear: \n
* If the BMS service-specific callback is registered
* with \ref Cy_BLE_BMS_RegisterAttrCallback():
* * #CY_BLE_EVT_BMSC_READ_DESCR_RESPONSE - In case if the requested attribute is
* successfully read on the peer device, the details (charIndex,
* descrIndex, value, etc.) are provided with event parameter structure
* of type \ref cy_stc_ble_bms_descr_value_t.
* .
* Otherwise (if an BMS service-specific callback is not registered):
* * #CY_BLE_EVT_GATTC_READ_RSP - If the requested attribute is
* successfully read on the peer device, the details (handle, value, etc.) are
* provided with an event parameter structure
* \ref cy_stc_ble_gattc_read_rsp_param_t.
*
* * #CY_BLE_EVT_GATTC_ERROR_RSP - If an error occurred with the
* requested attribute on the peer device, the details are provided with
* an event parameter structure \ref cy_stc_ble_gatt_err_param_t.
*
******************************************************************************/
cy_en_ble_api_result_t Cy_BLE_BMSC_GetCharacteristicDescriptor(cy_stc_ble_conn_handle_t connHandle,
cy_en_ble_bms_char_index_t charIndex,
cy_en_ble_bms_descr_index_t descrIndex)
{
cy_en_ble_api_result_t apiResult;
uint32_t discIdx = Cy_BLE_GetDiscoveryIdx(connHandle);
/* Get pointer (with offset) to BMS client structure with attribute handles */
cy_stc_ble_bmsc_t *bmscPtr = (cy_stc_ble_bmsc_t *)&cy_ble_bmscConfigPtr->attrInfo[discIdx];
/* Check the parameters */