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bless/cy_ble_uds.c

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/***************************************************************************//**
* \file cy_ble_uds.c
* \version 3.60
*
* \brief
* This file contains the source code for the User Data 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
/*******************************************************************************
* Internal Defines / Macro Functions
*******************************************************************************/
#define CY_BLE_UDS_IS_PROCEDURE_IN_PROGRESS (0u != (CY_BLE_UDS_FLAG_PROCESS & cy_ble_udsFlag))
#define CY_BLE_UDS_LONG_CHAR_NUM (4u)
/*******************************************************************************
* Private Function Prototypes
*******************************************************************************/
static cy_en_ble_gatt_err_code_t Cy_BLE_UDS_EventHandler(uint32_t eventCode, void *eventParam);
static cy_en_ble_gatt_err_code_t Cy_BLE_UDSS_EventHandler(uint32_t eventCode, void *eventParam);
static cy_en_ble_gatt_err_code_t Cy_BLE_UDSC_EventHandler(uint32_t eventCode, void *eventParam);
static void Cy_BLE_UDSS_ConfirmationEventHandler(const cy_stc_ble_conn_handle_t *eventParam);
static void Cy_BLE_UDSS_ReadRequestEventHandler(cy_stc_ble_gatts_char_val_read_req_t *eventParam);
static cy_en_ble_gatt_err_code_t Cy_BLE_UDSS_WriteEventHandler(cy_stc_ble_gatts_write_cmd_req_param_t *eventParam);
static void Cy_BLE_UDSS_PrepareWriteRequestEventHandler(cy_stc_ble_gatts_prep_write_req_param_t *eventParam);
static void Cy_BLE_UDSS_ExecuteWriteRequestEventHandler(cy_stc_ble_gatts_exec_write_req_t *eventParam);
static void Cy_BLE_UDSC_DiscoverCharacteristicsEventHandler(cy_stc_ble_disc_char_info_t *discCharInfo);
static void Cy_BLE_UDSC_DiscoverCharDescriptorsEventHandler(cy_stc_ble_disc_descr_info_t *discDescrInfo);
static void Cy_BLE_UDSC_GetCharRange(cy_stc_ble_disc_range_info_t *charRangeInfo);
static void Cy_BLE_UDSC_NotificationEventHandler(cy_stc_ble_gattc_handle_value_ntf_param_t *eventParam);
static void Cy_BLE_UDSC_IndicationEventHandler(cy_stc_ble_gattc_handle_value_ind_param_t *eventParam);
static void Cy_BLE_UDSC_ReadResponseEventHandler(cy_stc_ble_gattc_read_rsp_param_t *eventParam);
static void Cy_BLE_UDSC_ReadLongRespEventHandler(const cy_stc_ble_gattc_read_rsp_param_t *eventParam);
static void Cy_BLE_UDSC_WriteResponseEventHandler(const cy_stc_ble_conn_handle_t *eventParam);
static void Cy_BLE_UDSC_ErrorResponseEventHandler(const cy_stc_ble_gatt_err_param_t *eventParam);
static void Cy_BLE_UDSC_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_UDS_ApplCallback = NULL;
static cy_ble_event_handler_cb_t Cy_BLE_UDSC_EventHandlerCallback = NULL;
static cy_ble_event_handler_cb_t Cy_BLE_UDSS_EventHandlerCallback = NULL;
/* The internal storage for the last request handle to check response for server */
static cy_ble_gatt_db_attr_handle_t cy_ble_udssReqHandle;
/* The internal storage for the last request handle to check response */
static cy_ble_gatt_db_attr_handle_t cy_ble_udscReqHandle[CY_BLE_MAX_CONNECTION_INSTANCES];
/* The pointer to a global BLE UDS server config structure */
const cy_stc_ble_udss_config_t *cy_ble_udssConfigPtr = NULL;
/* The pointer to a global BLE UDS client config structure */
const cy_stc_ble_udsc_config_t *cy_ble_udscConfigPtr = NULL;
uint8_t cy_ble_udsFlag;
/* Read Long Descriptors variables */
static uint8_t * cy_ble_udscRdLongBuffPtr[CY_BLE_MAX_CONNECTION_INSTANCES] = { 0u };
static uint16_t cy_ble_udscRdLongBuffLen[CY_BLE_MAX_CONNECTION_INSTANCES] = { 0u };
static uint8_t cy_ble_udscCurrLen[CY_BLE_MAX_CONNECTION_INSTANCES] = { 0u };
/******************************************************************************
* Function Name: Cy_BLE_UDSS_Init
***************************************************************************//**
*
* This function initializes server of the User Data service.
*
* \param config: Configuration structure for the UDS.
*
* \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_UDSS_Init(const cy_stc_ble_udss_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_udssConfigPtr = config;
/* Registers event handler for the UDS */
apiResult = Cy_BLE_RegisterServiceEventHandler(&Cy_BLE_UDS_EventHandler);
/* Registers a pointer to server event handler function */
Cy_BLE_UDSS_EventHandlerCallback = &Cy_BLE_UDSS_EventHandler;
cy_ble_udssReqHandle = CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE;
cy_ble_udsFlag = 0u;
}
return(apiResult);
}
/******************************************************************************
* Function Name: Cy_BLE_UDSC_Init
***************************************************************************//**
*
* This function initializes the client of the User Data service.
*
* \param config: Configuration structure for the UDS.
*
* \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_UDSC_Init(const cy_stc_ble_udsc_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_udscConfigPtr = config;
/* Registers event handler for the UDS */
apiResult = Cy_BLE_RegisterServiceEventHandler(&Cy_BLE_UDS_EventHandler);
/* Registers a pointer to client event handler function */
Cy_BLE_UDSC_EventHandlerCallback = &Cy_BLE_UDSC_EventHandler;
for(idx = 0u; idx < cy_ble_configPtr->params->maxClientCount; idx++)
{
uint32 servCnt = cy_ble_configPtr->context->discServiCount;
uint32 udsServIdx = cy_ble_udscConfigPtr->serviceDiscIdx;
if(cy_ble_configPtr->context->serverInfo[(idx * servCnt) + udsServIdx].range.startHandle ==
CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE)
{
/* Get pointer to UDS client structure */
cy_stc_ble_udsc_t *udscPtr = (cy_stc_ble_udsc_t *)&cy_ble_udscConfigPtr->attrInfo[idx];
/* Clean client structure */
(void)memset(udscPtr, 0, sizeof(cy_stc_ble_udsc_t));
/* Initialize uuid */
cy_ble_configPtr->context->serverInfo[(idx * servCnt) + udsServIdx].uuid =
CY_BLE_UUID_USER_DATA_SERVICE;
}
cy_ble_udscReqHandle[idx] = CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE;
}
}
return(apiResult);
}
/******************************************************************************
* Function Name: Cy_BLE_UDS_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 UDS 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_UDSS_NOTIFICATION_ENABLED).
* * eventParam: Contains the parameters corresponding to the
* current event; (e.g. pointer to \ref cy_stc_ble_uds_char_value_t
* structure that contains details of the characteristic
* for which the notification enabled event was triggered).
*
******************************************************************************/
void Cy_BLE_UDS_RegisterAttrCallback(cy_ble_callback_t callbackFunc)
{
Cy_BLE_UDS_ApplCallback = callbackFunc;
}
/******************************************************************************
* Function Name: Cy_BLE_UDSS_SetCharacteristicValue
***************************************************************************//**
*
* Sets the value of the characteristic, as identified by charIndex.
*
* \param charIndex: The index of the service characteristic.
* \param attrSize: The size of the characteristic value attribute.
* \param attrValue: The pointer to the characteristic 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 function completed 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_UDSS_SetCharacteristicValue(cy_en_ble_uds_char_index_t charIndex,
uint8_t attrSize,
uint8_t *attrValue)
{
cy_en_ble_api_result_t apiResult;
/* Check parameters */
if(charIndex >= CY_BLE_UDS_CHAR_COUNT)
{
apiResult = CY_BLE_ERROR_INVALID_PARAMETER;
}
else if(cy_ble_udssConfigPtr->attrInfo->charInfo[charIndex].charHandle == CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE)
{
apiResult = CY_BLE_ERROR_GATT_DB_INVALID_ATTR_HANDLE;
}
else
{
/* Store characteristic value into 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_udssConfigPtr->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_UDSS_GetCharacteristicValue
***************************************************************************//**
*
* Gets the value of the characteristic, as identified by charIndex.
*
* \param charIndex: The index of the service characteristic.
* \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 | A characteristic is absent.
*
******************************************************************************/
cy_en_ble_api_result_t Cy_BLE_UDSS_GetCharacteristicValue(cy_en_ble_uds_char_index_t charIndex,
uint8_t attrSize,
uint8_t *attrValue)
{
cy_en_ble_api_result_t apiResult;
/* Check parameters */
if(charIndex >= CY_BLE_UDS_CHAR_COUNT)
{
apiResult = CY_BLE_ERROR_INVALID_PARAMETER;
}
else if(cy_ble_udssConfigPtr->attrInfo->charInfo[charIndex].charHandle == CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE)
{
apiResult = CY_BLE_ERROR_GATT_DB_INVALID_ATTR_HANDLE;
}
else
{
/* Get characteristic value from 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_udssConfigPtr->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_UDSS_GetCharacteristicDescriptor
***************************************************************************//**
*
* Gets a characteristic descriptor of the specified characteristic.
*
* \param connHandle: The connection handle.
* \param charIndex: The index of the characteristic.
* \param descrIndex: The index of the descriptor.
* \param attrSize: The size of the descriptor value 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_BLE_ERROR_GATT_DB_INVALID_ATTR_HANDLE | A characteristic is absent.
*
******************************************************************************/
cy_en_ble_api_result_t Cy_BLE_UDSS_GetCharacteristicDescriptor(cy_stc_ble_conn_handle_t connHandle,
cy_en_ble_uds_char_index_t charIndex,
cy_en_ble_uds_descr_index_t descrIndex,
uint8_t attrSize,
uint8_t *attrValue)
{
cy_en_ble_api_result_t apiResult;
/* Check parameters */
if((charIndex >= CY_BLE_UDS_CHAR_COUNT) || (descrIndex >= CY_BLE_UDS_DESCR_COUNT))
{
apiResult = CY_BLE_ERROR_INVALID_PARAMETER;
}
else if(cy_ble_udssConfigPtr->attrInfo->charInfo[charIndex].descrHandle[CY_BLE_UDS_CCCD] ==
CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE)
{
apiResult = CY_BLE_ERROR_GATT_DB_INVALID_ATTR_HANDLE;
}
else
{
/* Get data from database */
cy_stc_ble_gatts_db_attr_val_info_t dbAttrValInfo;
dbAttrValInfo.handleValuePair.attrHandle = cy_ble_udssConfigPtr->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_ReadAttributeValueCCCD(&dbAttrValInfo) != CY_BLE_GATT_ERR_NONE)
{
apiResult = CY_BLE_ERROR_INVALID_PARAMETER;
}
else
{
apiResult = CY_BLE_SUCCESS;
}
}
return(apiResult);
}
/******************************************************************************
* Function Name: Cy_BLE_UDSS_SendNotification
***************************************************************************//**
*
* Sends a notification of the specified characteristic value, as identified by
* the charIndex.
*
* On enabling notification successfully for a service characteristic, sends out a
* 'Handle Value Notification', which results in #CY_BLE_EVT_UDSC_NOTIFICATION event
* at the GATT Client's end.
*
* \param connHandle: The connection handle which consist of the device ID and ATT
* connection ID.
* \param charIndex: The index of the 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 client device.
*
* \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_INVALID_OPERATION | Operation is invalid for this characteristic.
* CY_BLE_ERROR_GATT_DB_INVALID_ATTR_HANDLE | An optional characteristic is absent.
* CY_BLE_ERROR_INVALID_STATE | Connection with the client is not established.
* CY_BLE_ERROR_MEMORY_ALLOCATION_FAILED | Memory allocation failed.
* CY_BLE_ERROR_NTF_DISABLED | Notification is not enabled by the client.
*
******************************************************************************/
cy_en_ble_api_result_t Cy_BLE_UDSS_SendNotification(cy_stc_ble_conn_handle_t connHandle,
cy_en_ble_uds_char_index_t charIndex,
uint8_t attrSize,
uint8_t *attrValue)
{
cy_en_ble_api_result_t apiResult;
/* Send Notification if it is enabled and connected */
if(Cy_BLE_GetConnectionState(connHandle) < CY_BLE_CONN_STATE_CONNECTED)
{
apiResult = CY_BLE_ERROR_INVALID_STATE;
}
else if(charIndex >= CY_BLE_UDS_CHAR_COUNT)
{
apiResult = CY_BLE_ERROR_INVALID_PARAMETER;
}
else if(cy_ble_udssConfigPtr->attrInfo->charInfo[charIndex].descrHandle[CY_BLE_UDS_CCCD] ==
CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE)
{
apiResult = CY_BLE_ERROR_GATT_DB_INVALID_ATTR_HANDLE;
}
else if(!CY_BLE_IS_NOTIFICATION_ENABLED(connHandle.attId,
cy_ble_udssConfigPtr->attrInfo->charInfo[charIndex].descrHandle[CY_BLE_UDS_CCCD]))
{
apiResult = CY_BLE_ERROR_NTF_DISABLED;
}
else
{
cy_stc_ble_gatts_handle_value_ntf_t ntfParam;
/* Fill all fields of Write Request structure ... */
ntfParam.handleValPair.attrHandle = cy_ble_udssConfigPtr->attrInfo->charInfo[charIndex].charHandle;
ntfParam.handleValPair.value.val = attrValue;
ntfParam.handleValPair.value.len = attrSize;
ntfParam.connHandle = connHandle;
/* Send notification to client using previously filled structure */
apiResult = Cy_BLE_GATTS_Notification(&ntfParam);
}
return(apiResult);
}
/******************************************************************************
* Function Name: Cy_BLE_UDSS_SendIndication
***************************************************************************//**
*
* Sends an indication of the specified characteristic value, as identified by
* the charIndex.
*
* On enabling indication successfully, sends out a 'Handle Value Indication', which
* results in #CY_BLE_EVT_UDSC_INDICATION or #CY_BLE_EVT_GATTC_HANDLE_VALUE_IND (if
* service-specific callback function is not registered) event at the GATT Client's end.
*
* \param connHandle: The connection handle which consist of the device ID and ATT
* connection ID.
* \param charIndex: The index of the 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 client device.
*
* \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_INVALID_OPERATION | Operation is invalid for this characteristic.
* CY_BLE_ERROR_GATT_DB_INVALID_ATTR_HANDLE | An optional characteristic is absent.
* CY_BLE_ERROR_INVALID_STATE | Connection with the client is not established.
* CY_BLE_ERROR_MEMORY_ALLOCATION_FAILED | Memory allocation failed.
* CY_BLE_ERROR_IND_DISABLED | Indication is not enabled by the client.
*
* \events
* In case of successful execution (return value = \ref CY_BLE_SUCCESS)
* the following events can appear: \n
* If the UDS service-specific callback is registered
* (with \ref Cy_BLE_UDS_RegisterAttrCallback):
* * #CY_BLE_EVT_UDSS_INDICATION_CONFIRMED - Whether the indication is
* successfully delivered to the peer device.
* .
* Otherwise (if the UDS service-specific callback is not registered):
* * #CY_BLE_EVT_GATTS_HANDLE_VALUE_CNF - Whether the indication is
* successfully delivered to the peer device.
*
******************************************************************************/
cy_en_ble_api_result_t Cy_BLE_UDSS_SendIndication(cy_stc_ble_conn_handle_t connHandle,
cy_en_ble_uds_char_index_t charIndex,
uint8_t attrSize,
uint8_t *attrValue)
{
cy_en_ble_api_result_t apiResult;
/* Send Indication if it is enabled and connected */
if(Cy_BLE_GetConnectionState(connHandle) < CY_BLE_CONN_STATE_CONNECTED)
{
apiResult = CY_BLE_ERROR_INVALID_STATE;
}
else if(charIndex >= CY_BLE_UDS_CHAR_COUNT)
{
apiResult = CY_BLE_ERROR_INVALID_PARAMETER;
}
else if(cy_ble_udssConfigPtr->attrInfo->charInfo[charIndex].descrHandle[CY_BLE_UDS_CCCD] ==
CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE)
{
apiResult = CY_BLE_ERROR_GATT_DB_INVALID_ATTR_HANDLE;
}
else if(!CY_BLE_IS_INDICATION_ENABLED(connHandle.attId,
cy_ble_udssConfigPtr->attrInfo->charInfo[charIndex].descrHandle[CY_BLE_UDS_CCCD]))
{
apiResult = CY_BLE_ERROR_IND_DISABLED;
}
else
{
cy_stc_ble_gatts_handle_value_ind_t indParam;
/* Fill all fields of Write Request structure ... */
indParam.handleValPair.attrHandle = cy_ble_udssConfigPtr->attrInfo->charInfo[charIndex].charHandle;
indParam.handleValPair.value.val = attrValue;
indParam.handleValPair.value.len = attrSize;
indParam.connHandle = connHandle;
/* Send notification to client using previously filled structure */
apiResult = Cy_BLE_GATTS_Indication(&indParam);
if(apiResult == CY_BLE_SUCCESS)
{
/* Save handle to support service-specific value confirmation response from client */
cy_ble_udssReqHandle = indParam.handleValPair.attrHandle;
}
}
return(apiResult);
}
/******************************************************************************
* Function Name: Cy_BLE_UDSS_ConfirmationEventHandler
***************************************************************************//**
*
* Handles the Value Confirmation request event from the BLE Stack.
*
* \param eventParam: The pointer to a structure of type cy_stc_ble_conn_handle_t.
*
******************************************************************************/
static void Cy_BLE_UDSS_ConfirmationEventHandler(const cy_stc_ble_conn_handle_t *eventParam)
{
if((Cy_BLE_UDS_ApplCallback != NULL)
&& (cy_ble_udssConfigPtr->attrInfo->charInfo[CY_BLE_UDS_UCP].charHandle == cy_ble_udssReqHandle))
{
cy_stc_ble_uds_char_value_t locCharIndex;
locCharIndex.connHandle = *eventParam;
locCharIndex.charIndex = CY_BLE_UDS_UCP;
locCharIndex.value = NULL;
cy_ble_udssReqHandle = CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE;
cy_ble_udsFlag &= (uint8_t) ~CY_BLE_UDS_FLAG_PROCESS;
cy_ble_eventHandlerFlag &= (uint8_t) ~CY_BLE_CALLBACK;
Cy_BLE_UDS_ApplCallback((uint32_t)CY_BLE_EVT_UDSS_INDICATION_CONFIRMED, &locCharIndex);
}
}
/******************************************************************************
* Function Name: Cy_BLE_UDSS_ReadRequestEventHandler
***************************************************************************//**
*
* Handles the Read Request event.
*
* \param eventParam: The pointer to the data structure specified by the event.
*
******************************************************************************/
static void Cy_BLE_UDSS_ReadRequestEventHandler(cy_stc_ble_gatts_char_val_read_req_t *eventParam)
{
if(Cy_BLE_UDS_ApplCallback != NULL)
{
cy_stc_ble_uds_char_value_t locCharValue;
locCharValue.connHandle = eventParam->connHandle;
locCharValue.gattErrorCode = CY_BLE_GATT_ERR_NONE;
locCharValue.value = NULL;
for(locCharValue.charIndex = CY_BLE_UDS_FNM;
locCharValue.charIndex < CY_BLE_UDS_CHAR_COUNT;
locCharValue.charIndex++)
{
if((locCharValue.charIndex != CY_BLE_UDS_UCP) &&
(eventParam->attrHandle == cy_ble_udssConfigPtr->attrInfo->charInfo[locCharValue.charIndex].charHandle))
{
Cy_BLE_UDS_ApplCallback((uint32_t)CY_BLE_EVT_UDSS_READ_CHAR, &locCharValue);
if(locCharValue.gattErrorCode == CY_BLE_GATT_ERR_USER_DATA_ACCESS_NOT_PERMITTED)
{
eventParam->gattErrorCode = CY_BLE_GATT_ERR_USER_DATA_ACCESS_NOT_PERMITTED;
}
cy_ble_eventHandlerFlag &= (uint8_t) ~CY_BLE_CALLBACK;
break;
}
}
}
}
/******************************************************************************
* Function Name: Cy_BLE_UDSS_WriteEventHandler
***************************************************************************//**
*
* Handles the Write Request event.
*
* \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_GATTS_ERR_PROCEDURE_ALREADY_IN_PROGRESS
* * CY_BLE_GATTS_ERR_CCCD_IMPROPERLY_CONFIGURED
*
******************************************************************************/
static cy_en_ble_gatt_err_code_t Cy_BLE_UDSS_WriteEventHandler(cy_stc_ble_gatts_write_cmd_req_param_t *eventParam)
{
cy_en_ble_gatt_err_code_t gattErr = CY_BLE_GATT_ERR_NONE;
if(Cy_BLE_UDS_ApplCallback != NULL)
{
cy_stc_ble_uds_char_value_t locCharValue;
locCharValue.connHandle = eventParam->connHandle;
locCharValue.gattErrorCode = CY_BLE_GATT_ERR_NONE;
if((eventParam->handleValPair.attrHandle ==
cy_ble_udssConfigPtr->attrInfo->charInfo[CY_BLE_UDS_DCI].descrHandle[CY_BLE_UDS_CCCD]) ||
(eventParam->handleValPair.attrHandle ==
cy_ble_udssConfigPtr->attrInfo->charInfo[CY_BLE_UDS_UCP].descrHandle[CY_BLE_UDS_CCCD]))
{
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;
gattErr = Cy_BLE_GATTS_WriteAttributeValueCCCD(&dbAttrValInfo);
locCharValue.value = NULL;
if(gattErr == CY_BLE_GATT_ERR_NONE)
{
uint32_t eventCode;
if(eventParam->handleValPair.attrHandle == cy_ble_udssConfigPtr->attrInfo->charInfo[CY_BLE_UDS_DCI].
descrHandle[CY_BLE_UDS_CCCD])
{
locCharValue.charIndex = CY_BLE_UDS_DCI;
if(CY_BLE_IS_NOTIFICATION_ENABLED_IN_PTR(eventParam->handleValPair.value.val))
{
eventCode = (uint32_t)CY_BLE_EVT_UDSS_NOTIFICATION_ENABLED;
}
else
{
eventCode = (uint32_t)CY_BLE_EVT_UDSS_NOTIFICATION_DISABLED;
}
}
else
{
locCharValue.charIndex = CY_BLE_UDS_UCP;
if(CY_BLE_IS_INDICATION_ENABLED_IN_PTR(eventParam->handleValPair.value.val))
{
eventCode = (uint32_t)CY_BLE_EVT_UDSS_INDICATION_ENABLED;
}
else
{
eventCode = (uint32_t)CY_BLE_EVT_UDSS_INDICATION_DISABLED;
}
}
Cy_BLE_UDS_ApplCallback(eventCode, &locCharValue);
}
cy_ble_eventHandlerFlag &= (uint8_t) ~CY_BLE_CALLBACK;
}
else
{
for(locCharValue.charIndex = CY_BLE_UDS_FNM;
locCharValue.charIndex < CY_BLE_UDS_CHAR_COUNT;
locCharValue.charIndex++)
{
if(eventParam->handleValPair.attrHandle ==
cy_ble_udssConfigPtr->attrInfo->charInfo[locCharValue.charIndex].charHandle)
{
gattErr = Cy_BLE_GATT_DbCheckPermission(eventParam->handleValPair.attrHandle,
&eventParam->connHandle, CY_BLE_GATT_DB_WRITE |
CY_BLE_GATT_DB_PEER_INITIATED);
if((gattErr == CY_BLE_GATT_ERR_NONE) && (locCharValue.charIndex == CY_BLE_UDS_UCP))
{
if(CY_BLE_UDS_IS_PROCEDURE_IN_PROGRESS)
{
gattErr = CY_BLE_GATT_ERR_PROCEDURE_ALREADY_IN_PROGRESS;
}
else if(!CY_BLE_IS_INDICATION_ENABLED(eventParam->connHandle.attId,
cy_ble_udssConfigPtr->attrInfo->charInfo[CY_BLE_UDS_UCP].
descrHandle[CY_BLE_UDS_CCCD]))
{
gattErr = CY_BLE_GATT_ERR_CCCD_IMPROPERLY_CONFIGURED;
}
else
{
}
}
if(gattErr == CY_BLE_GATT_ERR_NONE)
{
locCharValue.value = &eventParam->handleValPair.value;
if(!CY_BLE_GATT_DB_ATTR_CHECK_PRPTY(eventParam->handleValPair.attrHandle,
CY_BLE_GATT_DB_CH_PROP_WRITE))
{
gattErr = CY_BLE_GATT_ERR_WRITE_NOT_PERMITTED;
}
else if(eventParam->handleValPair.value.len >
CY_BLE_GATT_DB_ATTR_GET_ATTR_GEN_MAX_LEN(eventParam->handleValPair.attrHandle))
{
gattErr = CY_BLE_GATT_ERR_INVALID_ATTRIBUTE_LEN;
}
else
{
Cy_BLE_UDS_ApplCallback((uint32_t)CY_BLE_EVT_UDSS_WRITE_CHAR, &locCharValue);
if(locCharValue.gattErrorCode == CY_BLE_GATT_ERR_USER_DATA_ACCESS_NOT_PERMITTED)
{
gattErr = CY_BLE_GATT_ERR_USER_DATA_ACCESS_NOT_PERMITTED;
}
else
{
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;
gattErr = Cy_BLE_GATTS_WriteAttributeValueCCCD(&dbAttrValInfo);
if(gattErr == CY_BLE_GATT_ERR_NONE)
{
CY_BLE_GATT_DB_ATTR_SET_ATTR_GEN_LEN(cy_ble_udssConfigPtr->attrInfo->
charInfo[locCharValue.charIndex].charHandle,
locCharValue.value->len);
if(locCharValue.charIndex == CY_BLE_UDS_UCP)
{
cy_ble_udsFlag |= CY_BLE_UDS_FLAG_PROCESS;
}
}
}
}
}
cy_ble_eventHandlerFlag &= (uint8_t) ~CY_BLE_CALLBACK;
break;
}
}
}
}
return(gattErr);
}
/******************************************************************************
* Function Name: Cy_BLE_UDSS_PrepareWriteRequestEventHandler
***************************************************************************//**
*
* Handles the Prepare Write Request event.
*
* \param eventParam: The pointer to the data that comes with a Prepare
* Write Request.
*
******************************************************************************/
static void Cy_BLE_UDSS_PrepareWriteRequestEventHandler(cy_stc_ble_gatts_prep_write_req_param_t *eventParam)
{
cy_en_ble_uds_char_index_t locCharIndex;
cy_stc_ble_gatt_xchg_mtu_param_t mtuParam = { .connHandle = eventParam->connHandle };
(void)Cy_BLE_GATT_GetMtuSize(&mtuParam);
for(locCharIndex = CY_BLE_UDS_FNM; locCharIndex <= CY_BLE_UDS_EML; locCharIndex++)
{
if(eventParam->baseAddr[eventParam->currentPrepWriteReqCount - 1u].handleValuePair.attrHandle ==
cy_ble_udssConfigPtr->attrInfo->charInfo[locCharIndex].charHandle)
{
if(CY_BLE_GATT_DB_ATTR_GET_ATTR_GEN_MAX_LEN(cy_ble_udssConfigPtr->attrInfo->charInfo[locCharIndex].charHandle) <=
(mtuParam.mtu - CY_BLE_GATT_WRITE_HEADER_LEN))
{
eventParam->gattErrorCode = (uint8_t)CY_BLE_GATT_ERR_ATTRIBUTE_NOT_LONG;
}
/* Indicate that request was handled */
cy_ble_eventHandlerFlag &= (uint8_t) ~CY_BLE_CALLBACK;
break;
}
}
}
/******************************************************************************
* Function Name: Cy_BLE_UDSS_ExecuteWriteRequestEventHandler
***************************************************************************//**
*
* Handles the Execute Write Request event.
*
* \param eventParam: The pointer to the data that came with a Write Request.
*
******************************************************************************/
static void Cy_BLE_UDSS_ExecuteWriteRequestEventHandler(cy_stc_ble_gatts_exec_write_req_t *eventParam)
{
uint32_t locCount;
cy_stc_ble_uds_char_value_t locCharValue[CY_BLE_UDS_LONG_CHAR_COUNT];
cy_stc_ble_gatt_value_t locGattValue[CY_BLE_UDS_LONG_CHAR_COUNT];
cy_en_ble_uds_char_index_t locCharIndex;
for(locCharIndex = CY_BLE_UDS_FNM; locCharIndex <= CY_BLE_UDS_EML; locCharIndex++)
{
locGattValue[locCharIndex].len = 0u;
locGattValue[locCharIndex].val = NULL;
}
for(locCount = 0u; locCount < eventParam->prepWriteReqCount; locCount++)
{
for(locCharIndex = CY_BLE_UDS_FNM; locCharIndex <= CY_BLE_UDS_EML; locCharIndex++)
{
if(eventParam->baseAddr[locCount].handleValuePair.attrHandle ==
cy_ble_udssConfigPtr->attrInfo->charInfo[locCharIndex].charHandle)
{
locGattValue[locCharIndex].len = eventParam->baseAddr[locCount].offset +
eventParam->baseAddr[locCount].handleValuePair.value.len;
if(locGattValue[locCharIndex].val == NULL)
{
locGattValue[locCharIndex].val = eventParam->baseAddr[locCount].handleValuePair.value.val;
}
else if(eventParam->baseAddr[locCount].offset == 0u)
{
/* Case when client wants to rewrite value from beginning */
locGattValue[locCharIndex].val = eventParam->baseAddr[locCount].handleValuePair.value.val;
}
else
{
/* Do nothing */
}
}
}
}
for(locCharIndex = CY_BLE_UDS_FNM; locCharIndex <= CY_BLE_UDS_EML; locCharIndex++)
{
if((Cy_BLE_UDS_ApplCallback != NULL) && (locGattValue[locCharIndex].len != 0u) &&
(locGattValue[locCharIndex].len <=
CY_BLE_GATT_DB_ATTR_GET_ATTR_GEN_MAX_LEN(cy_ble_udssConfigPtr->attrInfo->charInfo[locCharIndex].charHandle)))
{
/* Check the execWriteFlag before execute or cancel write long operation */
if(eventParam->execWriteFlag == CY_BLE_GATT_EXECUTE_WRITE_EXEC_FLAG)
{
locCharValue[locCharIndex].gattErrorCode = CY_BLE_GATT_ERR_NONE;
locCharValue[locCharIndex].connHandle = eventParam->connHandle;
locCharValue[locCharIndex].charIndex = locCharIndex;
locCharValue[locCharIndex].value = &locGattValue[locCharIndex];
Cy_BLE_UDS_ApplCallback((uint32_t)CY_BLE_EVT_UDSS_WRITE_CHAR, &locCharValue[locCharIndex]);
if(locCharValue[locCharIndex].gattErrorCode == CY_BLE_GATT_ERR_USER_DATA_ACCESS_NOT_PERMITTED)
{
eventParam->gattErrorCode = (uint8_t)CY_BLE_GATT_ERR_USER_DATA_ACCESS_NOT_PERMITTED;
}
else
{
CY_BLE_GATT_DB_ATTR_SET_ATTR_GEN_LEN(cy_ble_udssConfigPtr->attrInfo->charInfo[locCharIndex].charHandle,
locGattValue[locCharIndex].len);
}
}
/* Indicate that request was handled */
cy_ble_eventHandlerFlag &= (uint8_t) ~CY_BLE_CALLBACK;
}
}
}
/******************************************************************************
* Function Name: Cy_BLE_UDSC_SetCharacteristicValue
***************************************************************************//**
*
* This function is used to write the characteristic (which is identified by
* charIndex) value attribute in the server. As a result, a Write Request is
* sent to the GATT Server and on successful execution of the request on the
* server side, the #CY_BLE_EVT_UDSS_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.
* \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 parameters failed.
* CY_BLE_ERROR_MEMORY_ALLOCATION_FAILED | Memory allocation failed.
* CY_BLE_ERROR_INVALID_STATE | Connection with the server is not established.
* CY_BLE_ERROR_GATT_DB_INVALID_ATTR_HANDLE | The peer device doesn't have the particular characteristic.
* CY_BLE_ERROR_INVALID_OPERATION | Operation is invalid for this characteristic.
*
* \events
* In the case of successful execution (return value = \ref CY_BLE_SUCCESS)
* the following events can appear: \n
* If the UDS service-specific callback is registered
* (with \ref Cy_BLE_UDS_RegisterAttrCallback):
* * #CY_BLE_EVT_UDSC_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 cy_stc_ble_uds_char_value_t.
*
* Otherwise (if the UDS service-specific callback is not registered):
* * #CY_BLE_EVT_GATTC_WRITE_RSP - If the requested attribute is
* successfully written on the peer device.
* * #CY_BLE_EVT_GATTC_ERROR_RSP - If there is some trouble with the
* requested attribute on the peer device,
* the details are provided with an event parameter
* structure (cy_stc_ble_gatt_err_param_t).
*
******************************************************************************/
cy_en_ble_api_result_t Cy_BLE_UDSC_SetCharacteristicValue(cy_stc_ble_conn_handle_t connHandle,
cy_en_ble_uds_char_index_t charIndex,
uint8_t attrSize,
uint8_t * attrValue)
{
cy_en_ble_api_result_t apiResult;
cy_stc_ble_gatt_xchg_mtu_param_t mtuParam;
uint32_t discIdx = Cy_BLE_GetDiscoveryIdx(connHandle);
mtuParam.connHandle = connHandle;
/* Get pointer (with offset) to UDS client structure with attribute handles */
cy_stc_ble_udsc_t *udscPtr = (cy_stc_ble_udsc_t *)&cy_ble_udscConfigPtr->attrInfo[discIdx];
(void)Cy_BLE_GATT_GetMtuSize(&mtuParam);
/* Check parameters */
if(Cy_BLE_GetConnectionState(connHandle) != CY_BLE_CONN_STATE_CLIENT_DISCOVERED)
{
apiResult = CY_BLE_ERROR_INVALID_STATE;
}
else if((charIndex >= CY_BLE_UDS_CHAR_COUNT) || (discIdx >= cy_ble_configPtr->params->maxClientCount))
{
apiResult = CY_BLE_ERROR_INVALID_PARAMETER;
}
else if(udscPtr->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_WRITE & udscPtr->charInfo[charIndex].properties) == 0u)
{
apiResult = CY_BLE_ERROR_INVALID_OPERATION;
}
else if((mtuParam.mtu - 3u) < attrSize)
{
cy_stc_ble_gattc_prep_write_req_t prepWriteReqParam;
prepWriteReqParam.handleValOffsetPair.handleValuePair.attrHandle = udscPtr->charInfo[charIndex].valueHandle;
prepWriteReqParam.handleValOffsetPair.offset = 0u;
prepWriteReqParam.handleValOffsetPair.handleValuePair.value.val = attrValue;
prepWriteReqParam.handleValOffsetPair.handleValuePair.value.len = attrSize;
prepWriteReqParam.connHandle = connHandle;
apiResult = Cy_BLE_GATTC_WriteLongCharacteristicValues(&prepWriteReqParam);
if(apiResult == CY_BLE_SUCCESS)
{
cy_ble_udscReqHandle[discIdx] = udscPtr->charInfo[charIndex].valueHandle;
}
}
else
{
cy_stc_ble_gattc_write_req_t writeReqParam;
writeReqParam.handleValPair.attrHandle = udscPtr->charInfo[charIndex].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_udscReqHandle[discIdx] = udscPtr->charInfo[charIndex].valueHandle;
}
}
return(apiResult);
}
/******************************************************************************
* Function Name: Cy_BLE_UDSC_GetCharacteristicValue
***************************************************************************//**
*
* This function is used to read the characteristic Value from a server,
* as identified by its charIndex. As a result, a Read Request is
* sent to the GATT Server and on successful execution of the request on the
* server side, the #CY_BLE_EVT_UDSS_READ_CHAR event is generated.
* On successful request execution on the server side, the Read Response is
* sent to the client.
*
* The Read Response only contains the characteristic Value that is less than or
* equal to (MTU - 1) octets in length. If the characteristic Value is greater
* than (MTU - 1) octets in length, the Read Long Characteristic Value procedure
* may be used if the rest of the characteristic Value is required.
*
*
* \param connHandle: The connection handle.
* \param charIndex: The index of the service characteristic.
*
* \return
* A return value of type \ref cy_en_ble_api_result_t.
*
* Error Codes | Description
* ------------ | -----------
* CY_BLE_SUCCESS | The Read Request was sent successfully.
* CY_BLE_ERROR_INVALID_PARAMETER | Validation of the input parameters failed.
* CY_BLE_ERROR_MEMORY_ALLOCATION_FAILED | Memory allocation failed.
* CY_BLE_ERROR_INVALID_STATE | Connection with the server is not established.
* CY_BLE_ERROR_GATT_DB_INVALID_ATTR_HANDLE | The peer device doesn't have the particular characteristic.
* CY_BLE_ERROR_INVALID_OPERATION | Operation is invalid for this characteristic.
*
* \events
* In case of successful execution (return value = \ref CY_BLE_SUCCESS)
* the following events can appear: \n
* If the UDS service-specific callback is registered
* (with \ref Cy_BLE_UDS_RegisterAttrCallback):
* * #CY_BLE_EVT_UDSC_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 cy_stc_ble_uds_char_value_t.
* .
* Otherwise (if the UDS 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 (cy_stc_ble_gattc_read_rsp_param_t).
* * #CY_BLE_EVT_GATTC_ERROR_RSP - If there is some trouble with the
* requested attribute on the peer device,
* the details are provided with an event parameter
* structure (cy_stc_ble_gatt_err_param_t).
*
******************************************************************************/
cy_en_ble_api_result_t Cy_BLE_UDSC_GetCharacteristicValue(cy_stc_ble_conn_handle_t connHandle,
cy_en_ble_uds_char_index_t charIndex)
{
cy_en_ble_api_result_t apiResult;
uint32_t discIdx = Cy_BLE_GetDiscoveryIdx(connHandle);
/* Get pointer (with offset) to UDS client structure with attribute handles */
cy_stc_ble_udsc_t *udscPtr = (cy_stc_ble_udsc_t *)&cy_ble_udscConfigPtr->attrInfo[discIdx];
/* Check parameters */
if(Cy_BLE_GetConnectionState(connHandle) != CY_BLE_CONN_STATE_CLIENT_DISCOVERED)
{
apiResult = CY_BLE_ERROR_INVALID_STATE;
}
else if((charIndex >= CY_BLE_UDS_CHAR_COUNT) || (discIdx >= cy_ble_configPtr->params->maxClientCount))
{
apiResult = CY_BLE_ERROR_INVALID_PARAMETER;
}
else if(udscPtr->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 & udscPtr->charInfo[charIndex].properties) == 0u)
{
apiResult = CY_BLE_ERROR_INVALID_OPERATION;
}
else
{
cy_stc_ble_gattc_read_req_t readReqParam;
readReqParam.attrHandle = udscPtr->charInfo[charIndex].valueHandle;
readReqParam.connHandle = connHandle;
apiResult = Cy_BLE_GATTC_ReadCharacteristicValue(&readReqParam);
}
if(apiResult == CY_BLE_SUCCESS)
{
cy_ble_udscReqHandle[discIdx] = udscPtr->charInfo[charIndex].valueHandle;
}
return(apiResult);
}
/******************************************************************************
* Function Name: Cy_BLE_UDSC_GetLongCharacteristicValue
***************************************************************************//**
*
* Sends a request to read a long characteristic.
*
* \param connHandle: The connection handle.
* \param charIndex: The index of the service characteristic.
* \param attrSize: The size of the characteristic value attribute.
* \param attrValue: The pointer to the buffer where the read long characteristic
* descriptor value should be stored.
*
* \return
* A return value of type \ref cy_en_ble_api_result_t.
*
* Error Codes | Description
* ------------ | -----------
* CY_BLE_SUCCESS | The Read Request was sent successfully.
* CY_BLE_ERROR_INVALID_PARAMETER | Validation of the input parameters failed.
* CY_BLE_ERROR_MEMORY_ALLOCATION_FAILED | Memory allocation failed.
* CY_BLE_ERROR_INVALID_STATE | Connection with the server is not established.
* CY_BLE_ERROR_GATT_DB_INVALID_ATTR_HANDLE | The peer device doesn't have the particular characteristic.
* CY_BLE_ERROR_INVALID_OPERATION | Operation is invalid for this characteristic.
*
* \events
* In the case of successful execution (return value = \ref CY_BLE_SUCCESS)
* the following events can appear: \n
* If the UDS service-specific callback is registered
* (with \ref Cy_BLE_UDS_RegisterAttrCallback):
* * #CY_BLE_EVT_UDSC_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 cy_stc_ble_uds_char_value_t.
* .
* Otherwise (if the UDS service-specific callback is not registered):
* * #CY_BLE_EVT_GATTC_READ_BLOB_RSP - If the requested attribute is
* successfully read on the peer device,
* the details (handle, value, etc.) are
* provided with an event parameter
* structure (cy_stc_ble_gattc_read_rsp_param_t).
* * #CY_BLE_EVT_GATTC_ERROR_RSP - If there is some trouble with the
* requested attribute on the peer device,
* the details are provided with an event parameter
* structure (cy_stc_ble_gatt_err_param_t).
*
******************************************************************************/
cy_en_ble_api_result_t Cy_BLE_UDSC_GetLongCharacteristicValue(cy_stc_ble_conn_handle_t connHandle,
cy_en_ble_uds_char_index_t charIndex,
uint16_t attrSize,
uint8_t *attrValue)
{
cy_en_ble_api_result_t apiResult;
uint32_t discIdx = Cy_BLE_GetDiscoveryIdx(connHandle);
/* Get pointer (with offset) to UDS client structure with attribute handles */
cy_stc_ble_udsc_t *udscPtr = (cy_stc_ble_udsc_t *)&cy_ble_udscConfigPtr->attrInfo[discIdx];
/* Check parameters */
if(Cy_BLE_GetConnectionState(connHandle) != CY_BLE_CONN_STATE_CLIENT_DISCOVERED)
{
apiResult = CY_BLE_ERROR_INVALID_STATE;
}
else if(((charIndex > CY_BLE_UDS_EML) && (charIndex != CY_BLE_UDS_LNG)) || (attrSize == 0u) ||
(attrValue == NULL) || (discIdx >= cy_ble_configPtr->params->maxClientCount))
{
apiResult = CY_BLE_ERROR_INVALID_PARAMETER;
}
else if(udscPtr->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 & udscPtr->charInfo[charIndex].properties) == 0u)
{
apiResult = CY_BLE_ERROR_INVALID_OPERATION;
}
else
{
cy_stc_ble_gattc_read_blob_req_t readBlobReqParam;
readBlobReqParam.handleOffset.attrHandle = udscPtr->charInfo[charIndex].valueHandle;
readBlobReqParam.handleOffset.offset = 0u;
readBlobReqParam.connHandle = connHandle;
apiResult = Cy_BLE_GATTC_ReadLongCharacteristicValues(&readBlobReqParam);
}
if(apiResult == CY_BLE_SUCCESS)
{
cy_ble_udscReqHandle[discIdx] = udscPtr->charInfo[charIndex].valueHandle;
cy_ble_udscRdLongBuffLen[discIdx] = attrSize;
cy_ble_udscRdLongBuffPtr[discIdx] = attrValue;
cy_ble_udscCurrLen[discIdx] = 0u;
}
return(apiResult);
}
/******************************************************************************
* Function Name: Cy_BLE_UDSC_SetCharacteristicDescriptor
***************************************************************************//**
*
* This function is used to write the characteristic Value to the server,
* as identified by its charIndex.
*
* Internally, Write Request is sent to the GATT Server and on successful
* execution of the request on the server side, the following events can be
* generated:
* * #CY_BLE_EVT_UDSS_INDICATION_ENABLED
* * #CY_BLE_EVT_UDSS_INDICATION_DISABLED
* * #CY_BLE_EVT_UDSS_NOTIFICATION_ENABLED
* * #CY_BLE_EVT_UDSS_NOTIFICATION_DISABLED
*
* \param connHandle: The connection handle.
* \param charIndex: The index of the service characteristic.
* \param descrIndex: The index of the service characteristic descriptor.
* \param attrSize: The size of the characteristic descriptor value attribute.
* \param attrValue: The pointer to the characteristic descriptor 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 parameters failed.
* CY_BLE_ERROR_MEMORY_ALLOCATION_FAILED | Memory allocation failed.
* CY_BLE_ERROR_INVALID_STATE | The state is not valid.
* CY_BLE_ERROR_GATT_DB_INVALID_ATTR_HANDLE | The peer device doesn't have the particular characteristic.
* CY_BLE_ERROR_INVALID_OPERATION | This operation is not permitted on the specified attribute.
*
* \events
* In the case of successful execution (return value = \ref CY_BLE_SUCCESS)
* the following events can appear: \n
* If the UDS service-specific callback is registered
* (with \ref Cy_BLE_UDS_RegisterAttrCallback):
* * #CY_BLE_EVT_UDSC_WRITE_DESCR_RESPONSE - If the requested attribute is
* successfully written on the peer device,
* the details (charIndex, descrIndex, etc.) are
* provided with an event parameter structure
* of type cy_stc_ble_uds_descr_value_t.
* .
* Otherwise (if the UDS service-specific callback is not registered):
* * #CY_BLE_EVT_GATTC_WRITE_RSP - If the requested attribute is
* successfully written on the peer device.
* * #CY_BLE_EVT_GATTC_ERROR_RSP - If there is some trouble with the
* requested attribute on the peer device,
* the details are provided with an event parameter
* structure (cy_stc_ble_gatt_err_param_t).
*
******************************************************************************/
cy_en_ble_api_result_t Cy_BLE_UDSC_SetCharacteristicDescriptor(cy_stc_ble_conn_handle_t connHandle,
cy_en_ble_uds_char_index_t charIndex,
cy_en_ble_uds_descr_index_t descrIndex,
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 UDS client structure with attribute handles */
cy_stc_ble_udsc_t *udscPtr = (cy_stc_ble_udsc_t *)&cy_ble_udscConfigPtr->attrInfo[discIdx];
/* Check parameters */
if(Cy_BLE_GetConnectionState(connHandle) != CY_BLE_CONN_STATE_CLIENT_DISCOVERED)
{
apiResult = CY_BLE_ERROR_INVALID_STATE;
}
else if((charIndex >= CY_BLE_UDS_CHAR_COUNT) || (descrIndex >= CY_BLE_UDS_DESCR_COUNT) ||
(attrSize != CY_BLE_CCCD_LEN) || (discIdx >= cy_ble_configPtr->params->maxClientCount))
{
apiResult = CY_BLE_ERROR_INVALID_PARAMETER;
}
else if(udscPtr->charInfo[charIndex].descrHandle[descrIndex] == CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE)
{
apiResult = CY_BLE_ERROR_GATT_DB_INVALID_ATTR_HANDLE;
}
else
{
cy_stc_ble_gattc_write_req_t writeReqParam;
/* Fill all fields of Write Request structure ... */
writeReqParam.handleValPair.attrHandle = udscPtr->charInfo[charIndex].descrHandle[descrIndex];
writeReqParam.handleValPair.value.val = attrValue;
writeReqParam.handleValPair.value.len = CY_BLE_CCCD_LEN;
writeReqParam.connHandle = connHandle;
/* ... and send request to server device. */
apiResult = Cy_BLE_GATTC_WriteCharacteristicDescriptors(&writeReqParam);
if(apiResult == CY_BLE_SUCCESS)
{
/* Save handle to support service-specific read response from device */
cy_ble_udscReqHandle[discIdx] = writeReqParam.handleValPair.attrHandle;
}
}
return(apiResult);
}
/******************************************************************************
* Function Name: Cy_BLE_UDSC_GetCharacteristicDescriptor
***************************************************************************//**
*
* Gets the characteristic descriptor of the specified characteristic.
*
* \param connHandle: The connection handle
* \param connHandle: The connection handle.
* \param charIndex: The index of the service characteristic.
* \param descrIndex: The index of the service characteristic descriptor.
*
* \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 parameters failed.
* CY_BLE_ERROR_MEMORY_ALLOCATION_FAILED | Memory allocation failed.
* CY_BLE_ERROR_INVALID_STATE | The state is not valid.
* CY_BLE_ERROR_GATT_DB_INVALID_ATTR_HANDLE | The peer device doesn't have the particular descriptor.
* CY_BLE_ERROR_INVALID_OPERATION | This operation is not permitted on the specified attribute.
*
* \events
* In the case of successful execution (return value = \ref CY_BLE_SUCCESS)
* the following events can appear: \n
* If the UDS service-specific callback is registered
* (with \ref Cy_BLE_UDS_RegisterAttrCallback):
* * #CY_BLE_EVT_UDSC_READ_DESCR_RESPONSE - If the requested attribute is
* successfully read on the peer device,
* the details (charIndex, descrIndex, value, etc.)
* are provided with an event parameter structure
* of type cy_stc_ble_uds_descr_value_t.
* .
* Otherwise (if the UDS 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 (cy_stc_ble_gattc_read_rsp_param_t).
* * #CY_BLE_EVT_GATTC_ERROR_RSP - If there is some trouble with the
* requested attribute on the peer device,
* the details are provided with an event parameter
* structure (cy_stc_ble_gatt_err_param_t).
*
******************************************************************************/
cy_en_ble_api_result_t Cy_BLE_UDSC_GetCharacteristicDescriptor(cy_stc_ble_conn_handle_t connHandle,
cy_en_ble_uds_char_index_t charIndex,
cy_en_ble_uds_descr_index_t descrIndex)
{
cy_en_ble_api_result_t apiResult;
uint32_t discIdx = Cy_BLE_GetDiscoveryIdx(connHandle);
/* Get pointer (with offset) to UDS client structure with attribute handles */
cy_stc_ble_udsc_t *udscPtr = (cy_stc_ble_udsc_t *)&cy_ble_udscConfigPtr->attrInfo[discIdx];
/* Check parameters */
if(Cy_BLE_GetConnectionState(connHandle) != CY_BLE_CONN_STATE_CLIENT_DISCOVERED)
{
apiResult = CY_BLE_ERROR_INVALID_STATE;
}
else if((charIndex >= CY_BLE_UDS_CHAR_COUNT) || (descrIndex >= CY_BLE_UDS_DESCR_COUNT) ||
(discIdx >= cy_ble_configPtr->params->maxClientCount))
{
apiResult = CY_BLE_ERROR_INVALID_PARAMETER;
}
else if(udscPtr->charInfo[charIndex].descrHandle[descrIndex] == CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE)
{
apiResult = CY_BLE_ERROR_GATT_DB_INVALID_ATTR_HANDLE;
}
else
{
cy_stc_ble_gattc_read_req_t readReqParam;
readReqParam.attrHandle = udscPtr->charInfo[charIndex].descrHandle[descrIndex];
readReqParam.connHandle = connHandle;
apiResult = Cy_BLE_GATTC_ReadCharacteristicDescriptors(&readReqParam);
if(apiResult == CY_BLE_SUCCESS)
{
cy_ble_udscReqHandle[discIdx] = udscPtr->charInfo[charIndex].descrHandle[descrIndex];
}
}
return(apiResult);
}
/******************************************************************************
* Function Name: Cy_BLE_UDSC_DiscoverCharacteristicsEventHandler
***************************************************************************//**
*
* This function is called on receiving a #CY_BLE_EVT_GATTC_READ_BY_TYPE_RSP
* event. Based on the service UUID, an appropriate data structure is populated
* using the data received as part of the callback.
*
* \param discCharInfo: The pointer to a characteristic information structure.
*
******************************************************************************/
static void Cy_BLE_UDSC_DiscoverCharacteristicsEventHandler(cy_stc_ble_disc_char_info_t *discCharInfo)
{
/* User Data service characteristics UUIDs */
static const cy_ble_uuid16_t cy_ble_udscCharUuid[CY_BLE_UDS_CHAR_COUNT] =
{
CY_BLE_UUID_CHAR_FIRST_NAME,
CY_BLE_UUID_CHAR_LAST_NAME,
CY_BLE_UUID_CHAR_EMAIL_ADDRESS,
CY_BLE_UUID_CHAR_AGE,
CY_BLE_UUID_CHAR_DATE_OF_BIRTH,
CY_BLE_UUID_CHAR_GENDER,
CY_BLE_UUID_CHAR_WEIGHT,
CY_BLE_UUID_CHAR_HEIGHT,
CY_BLE_UUID_CHAR_VO2_MAX,
CY_BLE_UUID_CHAR_HEART_RATE_MAX,
CY_BLE_UUID_CHAR_RESTING_HEART_RATE,
CY_BLE_UUID_CHAR_MRH,
CY_BLE_UUID_CHAR_AEROBIC_THRESHOLD,
CY_BLE_UUID_CHAR_ANAEROBIC_THRESHOLD,
CY_BLE_UUID_CHAR_STP,
CY_BLE_UUID_CHAR_DATE_OF_THRESHOLD_ASSESSMENT,
CY_BLE_UUID_CHAR_WAIST_CIRCUMFERENCE,
CY_BLE_UUID_CHAR_HIP_CIRCUNFERENCE,
CY_BLE_UUID_CHAR_FBL,
CY_BLE_UUID_CHAR_FBU,
CY_BLE_UUID_CHAR_AEL,
CY_BLE_UUID_CHAR_AEU,
CY_BLE_UUID_CHAR_ANL,
CY_BLE_UUID_CHAR_ANU,
CY_BLE_UUID_CHAR_FIVE_ZONE_HEART_RATE_LIMITS,
CY_BLE_UUID_CHAR_THREE_ZONE_HEART_RATE_LIMITS,
CY_BLE_UUID_CHAR_TWO_ZONE_HEART_RATE_LIMIT,
CY_BLE_UUID_CHAR_DATABASE_CHANGE_INCREMENT,
CY_BLE_UUID_CHAR_USER_INDEX,
CY_BLE_UUID_CHAR_USER_CONTROL_POINT,
CY_BLE_UUID_CHAR_LANGUAGE
};
static cy_ble_gatt_db_attr_handle_t *lastEndHandle[CY_BLE_MAX_CONNECTION_INSTANCES] = { 0u };
uint32_t discIdx = Cy_BLE_GetDiscoveryIdx(discCharInfo->connHandle);
uint32_t udsDiscIdx = cy_ble_udscConfigPtr->serviceDiscIdx;
uint32_t i;
if((discCharInfo->uuidFormat == CY_BLE_GATT_16_BIT_UUID_FORMAT) &&
(cy_ble_configPtr->context->discovery[discIdx].servCount == udsDiscIdx))
{
/* Get pointer (with offset) to UDS client structure with attribute handles */
cy_stc_ble_udsc_t *udscPtr = (cy_stc_ble_udsc_t *)&cy_ble_udscConfigPtr->attrInfo[discIdx];
/* Update last characteristic endHandle to declaration handle of this characteristic */
if(lastEndHandle[discIdx] != NULL)
{
*lastEndHandle[discIdx] = discCharInfo->charDeclHandle - 1u;
lastEndHandle[discIdx] = NULL;
}
for(i = 0u; i < (uint32_t)CY_BLE_UDS_CHAR_COUNT; i++)
{
if(cy_ble_udscCharUuid[i] == discCharInfo->uuid.uuid16)
{
if(udscPtr->charInfo[i].valueHandle == CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE)
{
udscPtr->charInfo[i].valueHandle = discCharInfo->valueHandle;
udscPtr->charInfo[i].properties = discCharInfo->properties;
lastEndHandle[discIdx] = &udscPtr->charInfo[i].endHandle;
}
else
{
Cy_BLE_ApplCallback((uint32_t)CY_BLE_EVT_GATTC_CHAR_DUPLICATION, &discCharInfo->uuid);
}
}
}
/* Init characteristic endHandle to service endHandle.
* Characteristic endHandle will be updated to the declaration
* Handler of the following characteristic,
* in the following characteristic discovery procedure. */
if(lastEndHandle[discIdx] != NULL)
{
uint32_t locServCount = cy_ble_configPtr->context->discovery[discIdx].servCount;
uint32_t discServiNum = cy_ble_configPtr->context->discServiCount;
*lastEndHandle[discIdx] =
cy_ble_configPtr->context->serverInfo[(discIdx * discServiNum) + locServCount].range.endHandle;
}
/* Indicate that request was handled */
cy_ble_eventHandlerFlag &= (uint8_t) ~CY_BLE_CALLBACK;
}
}
/******************************************************************************
* Function Name: Cy_BLE_UDSC_DiscoverCharDescriptorsEventHandler
***************************************************************************//**
*
* This function is called on receiving a #CY_BLE_EVT_GATTC_READ_BY_TYPE_RSP
* event. Based on the service UUID, an appropriate data structure is populated
* using the data received as part of the callback.
*
* \param discDescrInfo: The pointer to a descriptor information structure.
*
******************************************************************************/
static void Cy_BLE_UDSC_DiscoverCharDescriptorsEventHandler(cy_stc_ble_disc_descr_info_t *discDescrInfo)
{
uint32_t notSupportedDescr = 0u;
uint32_t discIdx = Cy_BLE_GetDiscoveryIdx(discDescrInfo->connHandle);
uint32_t udsDiscIdx = cy_ble_udscConfigPtr->serviceDiscIdx;
uint32_t descIdx;
if(cy_ble_configPtr->context->discovery[discIdx].servCount == udsDiscIdx)
{
/* Get pointer (with offset) to UDS client structure with attribute handles */
cy_stc_ble_udsc_t *udscPtr = (cy_stc_ble_udsc_t *)&cy_ble_udscConfigPtr->attrInfo[discIdx];
switch(discDescrInfo->uuid.uuid16)
{
case CY_BLE_UUID_CHAR_CLIENT_CONFIG:
descIdx = (uint32_t)CY_BLE_UDS_CCCD;
break;
default:
/* Not supported descriptor */
notSupportedDescr = 1u;
break;
}
if(notSupportedDescr == 0u)
{
if(udscPtr->charInfo[cy_ble_configPtr->context->discovery[discIdx].charCount].descrHandle[descIdx] ==
CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE)
{
udscPtr->charInfo[cy_ble_configPtr->context->discovery[discIdx].charCount].descrHandle[descIdx] =
discDescrInfo->descrHandle;
}
else
{
/* Duplication of the descriptor */
Cy_BLE_ApplCallback((uint32_t)CY_BLE_EVT_GATTC_DESCR_DUPLICATION, &discDescrInfo);
}
}
/* Indicate that request was handled */
cy_ble_eventHandlerFlag &= (uint8_t) ~CY_BLE_CALLBACK;
}
}
/******************************************************************************
* Function Name: Cy_BLE_UDSC_GetCharRange
***************************************************************************//**
*
* Returns a possible range of the current characteristic descriptor via
* input parameter charRangeInfo->range
*
* \param *charRangeInfo: The pointer to a descriptor range information structure.
*
******************************************************************************/
static void Cy_BLE_UDSC_GetCharRange(cy_stc_ble_disc_range_info_t *charRangeInfo)
{
uint32_t discIdx = Cy_BLE_GetDiscoveryIdx(charRangeInfo->connHandle);
uint32_t udsDiscIdx = cy_ble_udscConfigPtr->serviceDiscIdx;
uint32_t exitFlag = 0u;
if(cy_ble_configPtr->context->discovery[discIdx].servCount == udsDiscIdx)
{
/* Get pointer (with offset) to UDS client structure with attribute handles */
cy_stc_ble_udsc_t *udscPtr = (cy_stc_ble_udsc_t *)&cy_ble_udscConfigPtr->attrInfo[discIdx];
if(charRangeInfo->srviIncIdx != CY_BLE_DISCOVERY_INIT)
{
cy_ble_configPtr->context->discovery[discIdx].charCount++;
}
while((cy_ble_configPtr->context->discovery[discIdx].charCount < (uint32_t)CY_BLE_UDS_CHAR_COUNT) && (exitFlag == 0u))
{
uint32_t charIdx = cy_ble_configPtr->context->discovery[discIdx].charCount;
if((udscPtr->charInfo[charIdx].endHandle - udscPtr->charInfo[charIdx].valueHandle) != 0u)
{
/* Read characteristic range */
charRangeInfo->range.startHandle = udscPtr->charInfo[charIdx].valueHandle + 1u;
charRangeInfo->range.endHandle = udscPtr->charInfo[charIdx].endHandle;
exitFlag = 1u;
}
else
{
cy_ble_configPtr->context->discovery[discIdx].charCount++;
}
}
/* Indicate that request was handled */
cy_ble_eventHandlerFlag &= (uint8_t) ~CY_BLE_CALLBACK;
}
}
/******************************************************************************
* Function Name: Cy_BLE_UDSC_NotificationEventHandler
***************************************************************************//**
*
* Handles the Notification event.
*
* \param eventParam: The pointer to the data structure specified by the event.
*
******************************************************************************/
static void Cy_BLE_UDSC_NotificationEventHandler(cy_stc_ble_gattc_handle_value_ntf_param_t *eventParam)
{
uint32_t discIdx = Cy_BLE_GetDiscoveryIdx(eventParam->connHandle);
/* Get pointer (with offset) to UDS client structure with attribute handles */
cy_stc_ble_udsc_t *udscPtr = (cy_stc_ble_udsc_t *)&cy_ble_udscConfigPtr->attrInfo[discIdx];
if((discIdx < cy_ble_configPtr->params->maxClientCount) && (Cy_BLE_UDS_ApplCallback != NULL) &&
(udscPtr->charInfo[CY_BLE_UDS_DCI].valueHandle == eventParam->handleValPair.attrHandle))
{
cy_stc_ble_uds_char_value_t locCharValue;
locCharValue.connHandle = eventParam->connHandle;
locCharValue.charIndex = CY_BLE_UDS_DCI;
locCharValue.value = &eventParam->handleValPair.value;
Cy_BLE_UDS_ApplCallback((uint32_t)CY_BLE_EVT_UDSC_NOTIFICATION, &locCharValue);
cy_ble_eventHandlerFlag &= (uint8_t) ~CY_BLE_CALLBACK;
}
}
/******************************************************************************
* Function Name: Cy_BLE_UDSC_IndicationEventHandler
***************************************************************************//**
*
* Handles the Indication event.
*
* \param eventParam: The pointer to the data structure specified by the event.
*
******************************************************************************/
static void Cy_BLE_UDSC_IndicationEventHandler(cy_stc_ble_gattc_handle_value_ind_param_t *eventParam)
{
uint32_t discIdx = Cy_BLE_GetDiscoveryIdx(eventParam->connHandle);
/* Get pointer (with offset) to UDS client structure with attribute handles */
cy_stc_ble_udsc_t *udscPtr = (cy_stc_ble_udsc_t *)&cy_ble_udscConfigPtr->attrInfo[discIdx];
if((discIdx < cy_ble_configPtr->params->maxClientCount) && (Cy_BLE_UDS_ApplCallback != NULL))
{
if(udscPtr->charInfo[CY_BLE_UDS_UCP].valueHandle == eventParam->handleValPair.attrHandle)
{
cy_stc_ble_uds_char_value_t locCharValue;
locCharValue.charIndex = CY_BLE_UDS_UCP;
locCharValue.connHandle = eventParam->connHandle;
locCharValue.value = &eventParam->handleValPair.value;
cy_ble_eventHandlerFlag &= (uint8_t) ~CY_BLE_CALLBACK;
Cy_BLE_UDS_ApplCallback((uint32_t)CY_BLE_EVT_UDSC_INDICATION, &locCharValue);
}
}
}
/******************************************************************************
* Function Name: Cy_BLE_UDSC_ReadResponseEventHandler
***************************************************************************//**
*
* Handles the Read Response event.
*
* \param eventParam - The pointer to the data structure.
*
******************************************************************************/
static void Cy_BLE_UDSC_ReadResponseEventHandler(cy_stc_ble_gattc_read_rsp_param_t *eventParam)
{
uint32_t discIdx = Cy_BLE_GetDiscoveryIdx(eventParam->connHandle);
if((discIdx < cy_ble_configPtr->params->maxClientCount) && (cy_ble_udscReqHandle[discIdx] != CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE))
{
if(Cy_BLE_UDS_ApplCallback != NULL)
{
/* Get pointer (with offset) to UDS client structure with attribute handles */
cy_stc_ble_udsc_t *udscPtr = (cy_stc_ble_udsc_t *)&cy_ble_udscConfigPtr->attrInfo[discIdx];
cy_en_ble_uds_char_index_t i;
for(i = CY_BLE_UDS_FNM; i < CY_BLE_UDS_CHAR_COUNT; i++)
{
if(udscPtr->charInfo[i].valueHandle == cy_ble_udscReqHandle[discIdx])
{
cy_stc_ble_uds_char_value_t locCharValue;
locCharValue.connHandle = eventParam->connHandle;
locCharValue.charIndex = i;
locCharValue.value = &eventParam->value;
Cy_BLE_UDS_ApplCallback((uint32_t)CY_BLE_EVT_UDSC_READ_CHAR_RESPONSE, &locCharValue);
cy_ble_eventHandlerFlag &= (uint8_t) ~CY_BLE_CALLBACK;
break;
}
}
if((cy_ble_eventHandlerFlag & CY_BLE_CALLBACK) != 0u)
{
for(i = CY_BLE_UDS_FNM; i < CY_BLE_UDS_CHAR_COUNT; i++)
{
if(udscPtr->charInfo[i].descrHandle[CY_BLE_UDS_CCCD] == cy_ble_udscReqHandle[discIdx])
{
cy_stc_ble_uds_descr_value_t locDescrValue;
locDescrValue.connHandle = eventParam->connHandle;
locDescrValue.charIndex = i;
locDescrValue.descrIndex = CY_BLE_UDS_CCCD;
locDescrValue.value = &eventParam->value;
Cy_BLE_UDS_ApplCallback((uint32_t)CY_BLE_EVT_UDSC_READ_DESCR_RESPONSE, &locDescrValue);
cy_ble_eventHandlerFlag &= (uint8_t) ~CY_BLE_CALLBACK;
break;
}
}
}
}
cy_ble_udscReqHandle[discIdx] = CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE;
}
}
/******************************************************************************
* Function Name: Cy_BLE_UDSC_ReadLongRespEventHandler
***************************************************************************//**
*
* Handles a Read Long Response event.
*
* \param eventParam: The pointer to the data structure specified by an event.
*
*
******************************************************************************/
static void Cy_BLE_UDSC_ReadLongRespEventHandler(const cy_stc_ble_gattc_read_rsp_param_t *eventParam)
{
cy_stc_ble_gattc_stop_cmd_param_t stopCmdParam = { .connHandle = eventParam->connHandle };
uint32_t discIdx = Cy_BLE_GetDiscoveryIdx(eventParam->connHandle);
if((discIdx < cy_ble_configPtr->params->maxClientCount) && (Cy_BLE_UDS_ApplCallback != NULL) &&
(cy_ble_udscReqHandle[discIdx] != CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE))
{
/* Get pointer (with offset) to UDS client structure with attribute handles */
cy_stc_ble_udsc_t *udscPtr = (cy_stc_ble_udsc_t *)&cy_ble_udscConfigPtr->attrInfo[discIdx];
cy_stc_ble_uds_char_value_t locCharValue;
cy_stc_ble_gatt_value_t locGattValue;
uint32_t longCharIndex;
cy_en_ble_uds_char_index_t longCharSet[CY_BLE_UDS_LONG_CHAR_NUM] ={ CY_BLE_UDS_FNM, CY_BLE_UDS_LNM,
CY_BLE_UDS_EML, CY_BLE_UDS_LNG };
locCharValue.connHandle = eventParam->connHandle;
/* Go trough all long characteristics */
for(longCharIndex = 0u; longCharIndex < CY_BLE_UDS_LONG_CHAR_NUM; longCharIndex++)
{
if(udscPtr->charInfo[longCharSet[longCharIndex]].valueHandle == cy_ble_udscReqHandle[discIdx])
{
uint32_t j;
locCharValue.charIndex = longCharSet[longCharIndex];
/* Update user buffer with received data */
for(j = 0u; j < eventParam->value.len; j++)
{
if(cy_ble_udscCurrLen[discIdx] < cy_ble_udscRdLongBuffLen[discIdx])
{
cy_ble_udscRdLongBuffPtr[discIdx][cy_ble_udscCurrLen[discIdx]] = eventParam->value.val[j];
cy_ble_udscCurrLen[discIdx]++;
}
else
{
(void)Cy_BLE_GATTC_StopCmd(&stopCmdParam);
cy_ble_eventHandlerFlag &= (uint8_t) ~CY_BLE_CALLBACK;
break;
}
}
if((cy_ble_eventHandlerFlag & CY_BLE_CALLBACK) != 0u)
{
cy_stc_ble_gatt_xchg_mtu_param_t mtuParam =
{
.connHandle = eventParam->connHandle
};
(void)Cy_BLE_GATT_GetMtuSize(&mtuParam);
/* If received data length is less than MTU size, Read Long
* request is completed or provided user's buffer is full.
*/
if(((mtuParam.mtu - 1u) > eventParam->value.len))
{
locGattValue.val = cy_ble_udscRdLongBuffPtr[discIdx];
locGattValue.len = cy_ble_udscCurrLen[discIdx];
locCharValue.value = &locGattValue;
Cy_BLE_UDS_ApplCallback((uint32_t)CY_BLE_EVT_UDSC_READ_CHAR_RESPONSE, &locCharValue);
cy_ble_udscReqHandle[discIdx] = CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE;
}
cy_ble_eventHandlerFlag &= (uint8_t) ~CY_BLE_CALLBACK;
}
break;
}
}
}
}
/******************************************************************************
* Function Name: Cy_BLE_UDSC_WriteResponseEventHandler
***************************************************************************//**
*
* Handles the Write Response event.
*
* \param eventParam: The pointer to a data structure specified by the event.
*
******************************************************************************/
static void Cy_BLE_UDSC_WriteResponseEventHandler(const cy_stc_ble_conn_handle_t *eventParam)
{
uint32_t discIdx = Cy_BLE_GetDiscoveryIdx(*eventParam);
if((discIdx < cy_ble_configPtr->params->maxClientCount) && (Cy_BLE_UDS_ApplCallback != NULL) &&
(cy_ble_udscReqHandle[discIdx] != CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE))
{
/* Get pointer (with offset) to UDS client structure with attribute handles */
cy_stc_ble_udsc_t *udscPtr = (cy_stc_ble_udsc_t *)&cy_ble_udscConfigPtr->attrInfo[discIdx];
if(udscPtr->charInfo[CY_BLE_UDS_UCP].valueHandle == cy_ble_udscReqHandle[discIdx])
{
cy_stc_ble_uds_char_value_t locCharIndex;
locCharIndex.connHandle = *eventParam;
locCharIndex.charIndex = CY_BLE_UDS_UCP;
locCharIndex.value = NULL;
cy_ble_udscReqHandle[discIdx] = CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE;
cy_ble_eventHandlerFlag &= (uint8_t) ~CY_BLE_CALLBACK;
Cy_BLE_UDS_ApplCallback((uint32_t)CY_BLE_EVT_UDSC_WRITE_CHAR_RESPONSE, &locCharIndex);
}
else
{
cy_en_ble_uds_char_index_t i;
for(i = CY_BLE_UDS_FNM; i < CY_BLE_UDS_CHAR_COUNT; i++)
{
if(udscPtr->charInfo[i].descrHandle[CY_BLE_UDS_CCCD] == cy_ble_udscReqHandle[discIdx])
{
cy_stc_ble_uds_descr_value_t locDescIndex;
locDescIndex.connHandle = *eventParam;
locDescIndex.charIndex = i;
locDescIndex.descrIndex = CY_BLE_UDS_CCCD;
locDescIndex.value = NULL;
cy_ble_udscReqHandle[discIdx] = CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE;
cy_ble_eventHandlerFlag &= (uint8_t) ~CY_BLE_CALLBACK;
Cy_BLE_UDS_ApplCallback((uint32_t)CY_BLE_EVT_UDSC_WRITE_DESCR_RESPONSE, &locDescIndex);
break;
}
}
}
}
}
/******************************************************************************
* Function Name: Cy_BLE_UDSC_ExecuteWriteResponseEventHandler
***************************************************************************//**
*
* Handles a Execute Write Response event for the User Data service.
*
* \param eventParam: The pointer to a data structure specified by an event.
*
******************************************************************************/
static void Cy_BLE_UDSC_ExecuteWriteResponseEventHandler(const cy_stc_ble_gattc_exec_write_rsp_t *eventParam)
{
uint32_t i;
uint32_t discIdx = Cy_BLE_GetDiscoveryIdx(eventParam->connHandle);
if((discIdx < cy_ble_configPtr->params->maxClientCount) && (Cy_BLE_UDS_ApplCallback != NULL) &&
(cy_ble_udscReqHandle[discIdx] != CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE))
{
/* Get pointer (with offset) to UDS client structure with attribute handles */
cy_stc_ble_udsc_t *udscPtr = (cy_stc_ble_udsc_t *)&cy_ble_udscConfigPtr->attrInfo[discIdx];
for(i = 0u; i < ((uint8_t)CY_BLE_UDS_CHAR_COUNT); i++)
{
if(udscPtr->charInfo[i].valueHandle == cy_ble_udscReqHandle[discIdx])
{
cy_stc_ble_uds_char_value_t locCharVal;
locCharVal.connHandle = eventParam->connHandle;
locCharVal.charIndex = (cy_en_ble_uds_char_index_t)i;
locCharVal.value = NULL;
cy_ble_udscReqHandle[discIdx] = CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE;
Cy_BLE_UDS_ApplCallback((uint32_t)CY_BLE_EVT_UDSC_WRITE_CHAR_RESPONSE, &locCharVal);
cy_ble_eventHandlerFlag &= (uint8_t) ~CY_BLE_CALLBACK;
}
}
}
}
/******************************************************************************
* Function Name: Cy_BLE_UDSC_ErrorResponseEventHandler
***************************************************************************//**
*
* Handles the Error Response event.
*
* \param eventParam: The pointer to the data structure specified by the event.
*
*
******************************************************************************/
static void Cy_BLE_UDSC_ErrorResponseEventHandler(const cy_stc_ble_gatt_err_param_t *eventParam)
{
if(eventParam != NULL)
{
uint32_t discIdx = Cy_BLE_GetDiscoveryIdx(eventParam->connHandle);
if(cy_ble_udscReqHandle[discIdx] == eventParam->errInfo.attrHandle)
{
if((eventParam->errInfo.opCode == CY_BLE_GATT_READ_BLOB_REQ) &&
(eventParam->errInfo.errorCode == CY_BLE_GATT_ERR_ATTRIBUTE_NOT_LONG))
{
cy_stc_ble_gattc_read_req_t readReqParam;
readReqParam.attrHandle = eventParam->errInfo.attrHandle;
readReqParam.connHandle = eventParam->connHandle;
(void)Cy_BLE_GATTC_ReadCharacteristicValue(&readReqParam);
cy_ble_eventHandlerFlag &= (uint8_t) ~CY_BLE_CALLBACK;
}
else
{
if(Cy_BLE_UDS_ApplCallback != NULL)
{
/* Get pointer (with offset) to UDS client structure with attribute handles */
cy_stc_ble_udsc_t *udscPtr = (cy_stc_ble_udsc_t *)&cy_ble_udscConfigPtr->attrInfo[discIdx];
cy_stc_ble_uds_char_value_t locGattError;
locGattError.gattErrorCode = eventParam->errInfo.errorCode;
locGattError.connHandle = eventParam->connHandle;
locGattError.value = NULL;
for(locGattError.charIndex = CY_BLE_UDS_FNM; locGattError.charIndex < CY_BLE_UDS_CHAR_COUNT;
locGattError.charIndex++)
{
if(udscPtr->charInfo[locGattError.charIndex].valueHandle ==
eventParam->errInfo.attrHandle)
{
Cy_BLE_UDS_ApplCallback((uint32_t)CY_BLE_EVT_UDSC_ERROR_RESPONSE, &locGattError);
cy_ble_eventHandlerFlag &= (uint8_t) ~CY_BLE_CALLBACK;
break;
}
}
}
cy_ble_udscReqHandle[discIdx] = CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE;
}
}
}
}
/******************************************************************************
* Function Name: Cy_BLE_UDS_EventHandler
***************************************************************************//**
*
* Handles the events from the BLE Stack for the UDS service.
*
* \param eventCode: the event code
* \param eventParam: the event parameters
*
* \return
* A return value of type cy_en_ble_gatt_err_code_t.
*
******************************************************************************/
static cy_en_ble_gatt_err_code_t Cy_BLE_UDS_EventHandler(uint32_t eventCode,
void *eventParam)
{
cy_en_ble_gatt_err_code_t gattErr = CY_BLE_GATT_ERR_NONE;
/************************************
* Handling GATT Server events
***********************************/
if(Cy_BLE_UDSS_EventHandlerCallback != NULL)
{
gattErr = Cy_BLE_UDSS_EventHandlerCallback(eventCode, eventParam);
}
/************************************
* Handling GATT Client events
***********************************/
if(Cy_BLE_UDSC_EventHandlerCallback != NULL)
{
(void)Cy_BLE_UDSC_EventHandlerCallback(eventCode, eventParam);
}
return(gattErr);
}
/******************************************************************************
* Function Name: Cy_BLE_UDSS_EventHandler
***************************************************************************//**
*
* Handles the server events from the BLE Stack for the UDS service
*
* \param eventCode: the event code
* \param eventParam: the event parameters
*
* \return
* A return value of type cy_en_ble_gatt_err_code_t.
*
******************************************************************************/
static cy_en_ble_gatt_err_code_t Cy_BLE_UDSS_EventHandler(uint32_t eventCode, void *eventParam)
{
cy_en_ble_gatt_err_code_t gattErr = CY_BLE_GATT_ERR_NONE;
/* Handling GATT Server events */
switch((cy_en_ble_event_t)eventCode)
{
case CY_BLE_EVT_GATT_DISCONNECT_IND:
(void)Cy_BLE_UDSS_Init(cy_ble_udssConfigPtr);
break;
case CY_BLE_EVT_GATTS_WRITE_REQ:
gattErr = Cy_BLE_UDSS_WriteEventHandler((cy_stc_ble_gatts_write_cmd_req_param_t*)eventParam);
break;
case CY_BLE_EVT_GATTS_HANDLE_VALUE_CNF:
Cy_BLE_UDSS_ConfirmationEventHandler((cy_stc_ble_conn_handle_t*)eventParam);
break;
case CY_BLE_EVT_GATTS_PREP_WRITE_REQ:
Cy_BLE_UDSS_PrepareWriteRequestEventHandler((cy_stc_ble_gatts_prep_write_req_param_t*)eventParam);
break;
case CY_BLE_EVT_GATTS_EXEC_WRITE_REQ:
Cy_BLE_UDSS_ExecuteWriteRequestEventHandler((cy_stc_ble_gatts_exec_write_req_t*)eventParam);
break;
case CY_BLE_EVT_GATTS_READ_CHAR_VAL_ACCESS_REQ:
Cy_BLE_UDSS_ReadRequestEventHandler((cy_stc_ble_gatts_char_val_read_req_t*)eventParam);
break;
default:
break;
}
return (gattErr);
}
/******************************************************************************
* Function Name: Cy_BLE_UDSC_EventHandler
***************************************************************************//**
*
* Handles the client events from the BLE Stack for the UDS service
*
* \param eventCode: the event code
* \param eventParam: the event parameters
*
* \return
* A return value of type cy_en_ble_gatt_err_code_t.
*
******************************************************************************/
static cy_en_ble_gatt_err_code_t Cy_BLE_UDSC_EventHandler(uint32_t eventCode, void *eventParam)
{
cy_en_ble_gatt_err_code_t gattErr = CY_BLE_GATT_ERR_NONE;
if(eventCode > (uint32_t)CY_BLE_EVT_MAX)
{
/* Handling service-specific events */
switch((cy_en_ble_evt_t)eventCode)
{
/* Discovery events */
case CY_BLE_EVT_GATTC_DISC_CHAR:
Cy_BLE_UDSC_DiscoverCharacteristicsEventHandler((cy_stc_ble_disc_char_info_t*)eventParam);
break;
case CY_BLE_EVT_GATTC_DISC_DESCR:
Cy_BLE_UDSC_DiscoverCharDescriptorsEventHandler((cy_stc_ble_disc_descr_info_t*)eventParam);
break;
case CY_BLE_EVT_GATTC_DISC_DESCR_GET_RANGE:
Cy_BLE_UDSC_GetCharRange((cy_stc_ble_disc_range_info_t*)eventParam);
break;
default:
break;
}
}
else
{
/* Handling GATT Client events */
switch((cy_en_ble_event_t)eventCode)
{
case CY_BLE_EVT_GATTC_ERROR_RSP:
{
uint32_t discIdx = Cy_BLE_GetDiscoveryIdx(((cy_stc_ble_gatt_err_param_t*)eventParam)->connHandle);
if((discIdx < cy_ble_configPtr->params->maxClientCount) && (cy_ble_configPtr->context->discovery[discIdx].autoDiscoveryFlag == 0u) &&
(((cy_stc_ble_gatt_err_param_t*)eventParam)->errInfo.errorCode !=
CY_BLE_GATT_ERR_ATTRIBUTE_NOT_FOUND))
{
Cy_BLE_UDSC_ErrorResponseEventHandler((cy_stc_ble_gatt_err_param_t*)eventParam);
}
}
break;
case CY_BLE_EVT_GATTC_HANDLE_VALUE_NTF:
Cy_BLE_UDSC_NotificationEventHandler((cy_stc_ble_gattc_handle_value_ntf_param_t*)eventParam);
break;
case CY_BLE_EVT_GATTC_HANDLE_VALUE_IND:
Cy_BLE_UDSC_IndicationEventHandler((cy_stc_ble_gattc_handle_value_ind_param_t*)eventParam);
break;
case CY_BLE_EVT_GATTC_READ_RSP:
Cy_BLE_UDSC_ReadResponseEventHandler((cy_stc_ble_gattc_read_rsp_param_t*)eventParam);
break;
case CY_BLE_EVT_GATTC_WRITE_RSP:
Cy_BLE_UDSC_WriteResponseEventHandler((cy_stc_ble_conn_handle_t*)eventParam);
break;
case CY_BLE_EVT_GATTC_READ_BLOB_RSP:
Cy_BLE_UDSC_ReadLongRespEventHandler((cy_stc_ble_gattc_read_rsp_param_t*)eventParam);
break;
case CY_BLE_EVT_GATTC_EXEC_WRITE_RSP:
Cy_BLE_UDSC_ExecuteWriteResponseEventHandler((cy_stc_ble_gattc_exec_write_rsp_t*)eventParam);
break;
default:
break;
}
}
return(gattErr);
}
#endif /* CY_BLE_LIB_HOST_CORE */
#endif /* CY_IP_MXBLESS */
/* [] END OF FILE */