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bless/cy_ble_wss.c

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/***************************************************************************//**
* \file cy_ble_wss.c
* \version 3.60
*
* \brief
* Contains the source code for the Weight Scale 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_WSS_EventHandler(uint32_t eventCode, void *eventParam);
static cy_en_ble_gatt_err_code_t Cy_BLE_WSSS_EventHandler(uint32_t eventCode, void *eventParam);
static cy_en_ble_gatt_err_code_t Cy_BLE_WSSC_EventHandler(uint32_t eventCode, void *eventParam);
static cy_en_ble_gatt_err_code_t Cy_BLE_WSSS_WriteEventHandler(const cy_stc_ble_gatts_write_cmd_req_param_t *eventParam);
static void Cy_BLE_WSSS_ConfirmationEventHandler(const cy_stc_ble_conn_handle_t *eventParam);
static void Cy_BLE_WSSC_DiscoverCharacteristicsEventHandler(cy_stc_ble_disc_char_info_t *discCharInfo);
static void Cy_BLE_WSSC_DiscoverCharDescriptorsEventHandler(cy_stc_ble_disc_descr_info_t *discDescrInfo);
static void Cy_BLE_WSSC_GetCharRange(cy_stc_ble_disc_range_info_t *charRangeInfo);
static void Cy_BLE_WSSC_IndicationEventHandler(cy_stc_ble_gattc_handle_value_ind_param_t *eventParam);
static void Cy_BLE_WSSC_ReadResponseEventHandler(cy_stc_ble_gattc_read_rsp_param_t *eventParam);
static void Cy_BLE_WSSC_WriteResponseEventHandler(const cy_stc_ble_conn_handle_t *eventParam);
static void Cy_BLE_WSSC_ErrorResponseEventHandler(const cy_stc_ble_gatt_err_param_t *eventParam);
/*******************************************************************************
* Global Variables
*******************************************************************************/
/* The pointers to the callback functions */
static cy_ble_callback_t Cy_BLE_WSS_ApplCallback = NULL;
static cy_ble_event_handler_cb_t Cy_BLE_WSSC_EventHandlerCallback = NULL;
static cy_ble_event_handler_cb_t Cy_BLE_WSSS_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_wsssReqHandle;
/* The internal storage for the last request handle to check response */
static cy_ble_gatt_db_attr_handle_t cy_ble_wsscReqHandle[CY_BLE_MAX_CONNECTION_INSTANCES];
/* The pointer to a global BLE WSS server config structure */
const cy_stc_ble_wsss_config_t *cy_ble_wsssConfigPtr = NULL;
/* The pointer to a global BLE WSS client config structure */
const cy_stc_ble_wssc_config_t *cy_ble_wsscConfigPtr = NULL;
/******************************************************************************
* Function Name: Cy_BLE_WSSS_Init
***************************************************************************//**
*
* This function initializes server for the Weight Scale service.
*
* \param config: Configuration structure for the WSS.
*
* \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_WSSS_Init(const cy_stc_ble_wsss_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_wsssConfigPtr = config;
/* Registers event handler for the WSS */
apiResult = Cy_BLE_RegisterServiceEventHandler(&Cy_BLE_WSS_EventHandler);
/* Registers a pointer to server event handler function */
Cy_BLE_WSSS_EventHandlerCallback = &Cy_BLE_WSSS_EventHandler;
cy_ble_wsssReqHandle = CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE;
}
return(apiResult);
}
/******************************************************************************
* Function Name: Cy_BLE_WSSC_Init
***************************************************************************//**
*
* This function initializes client for the Weight Scale service.
*
* \param config: Configuration structure for the WSS.
*
* \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_WSSC_Init(const cy_stc_ble_wssc_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_wsscConfigPtr = config;
/* Registers event handler for the WSS */
apiResult = Cy_BLE_RegisterServiceEventHandler(&Cy_BLE_WSS_EventHandler);
/* Registers a pointer to client event handler function */
Cy_BLE_WSSC_EventHandlerCallback = &Cy_BLE_WSSC_EventHandler;
for(idx = 0u; idx < cy_ble_configPtr->params->maxClientCount; idx++)
{
uint32 servCnt = cy_ble_configPtr->context->discServiCount;
uint32 wssServIdx = cy_ble_wsscConfigPtr->serviceDiscIdx;
if(cy_ble_configPtr->context->serverInfo[(idx * servCnt) + wssServIdx].range.startHandle ==
CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE)
{
/* Get pointer to WSS client structure */
cy_stc_ble_wssc_t *wsscPtr = (cy_stc_ble_wssc_t *)&cy_ble_wsscConfigPtr->attrInfo[idx];
/* Clean client structure */
(void)memset(wsscPtr, 0, sizeof(cy_stc_ble_wssc_t));
/* Initialize uuid */
cy_ble_configPtr->context->serverInfo[(idx * servCnt) + wssServIdx].uuid =
CY_BLE_UUID_WEIGHT_SCALE_SERVICE;
}
cy_ble_wsscReqHandle[idx] = CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE;
}
}
return(apiResult);
}
/******************************************************************************
* Function Name: Cy_BLE_WSS_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 WSS 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_WSSS_INDICATION_ENABLED).
* * eventParam: Contains the parameters corresponding to the
* current event (e.g. pointer to \ref cy_stc_ble_wss_char_value_t
* structure that contains details of the characteristic
* for which the notification enabled event was triggered).
*
******************************************************************************/
void Cy_BLE_WSS_RegisterAttrCallback(cy_ble_callback_t callbackFunc)
{
Cy_BLE_WSS_ApplCallback = callbackFunc;
}
/******************************************************************************
* Function Name: Cy_BLE_WSSS_WriteEventHandler
***************************************************************************//**
*
* Handles Write Request event for Weight Scale service.
*
* \param eventParam: The pointer to the data structure specified by the event.
*
******************************************************************************/
static cy_en_ble_gatt_err_code_t Cy_BLE_WSSS_WriteEventHandler(const cy_stc_ble_gatts_write_cmd_req_param_t *eventParam)
{
cy_en_ble_gatt_err_code_t gattErr = CY_BLE_GATT_ERR_NONE;
uint32_t event = (uint32_t)CY_BLE_EVT_WSSS_INDICATION_DISABLED;
if(Cy_BLE_WSS_ApplCallback != NULL)
{
/* Client Characteristic Configuration descriptor Write Request */
if(eventParam->handleValPair.attrHandle ==
cy_ble_wsssConfigPtr->attrInfo->charInfo[CY_BLE_WSS_WEIGHT_MEASUREMENT].descrHandle[CY_BLE_WSS_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;
if(CY_BLE_IS_INDICATION_ENABLED_IN_PTR(eventParam->handleValPair.value.val))
{
event = (uint32_t)CY_BLE_EVT_WSSS_INDICATION_ENABLED;
}
gattErr = Cy_BLE_GATTS_WriteAttributeValueCCCD(&dbAttrValInfo);
if(gattErr == CY_BLE_GATT_ERR_NONE)
{
cy_stc_ble_wss_char_value_t wrReqParam;
wrReqParam.connHandle = eventParam->connHandle;
wrReqParam.charIndex = CY_BLE_WSS_WEIGHT_MEASUREMENT;
wrReqParam.value = NULL;
Cy_BLE_WSS_ApplCallback(event, &wrReqParam);
}
/* Clear callback flag indicating that request was handled */
cy_ble_eventHandlerFlag &= (uint8_t) ~CY_BLE_CALLBACK;
}
}
return(gattErr);
}
/******************************************************************************
* Function Name: Cy_BLE_WSSS_ConfirmationEventHandler
***************************************************************************//**
*
* Handles a 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_WSSS_ConfirmationEventHandler(const cy_stc_ble_conn_handle_t *eventParam)
{
if((Cy_BLE_WSS_ApplCallback != NULL) && (CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE != cy_ble_wsssReqHandle))
{
/* Only Weight Measurement Characteristic has the Indication property. Check whether
* the requested handle is the handle of the descriptor Value Change handle.
*/
if(cy_ble_wsssReqHandle == cy_ble_wsssConfigPtr->attrInfo->charInfo[CY_BLE_WSS_WEIGHT_MEASUREMENT].charHandle)
{
/* Fill in event data and inform application about successfully
* confirmed indication.
*/
cy_stc_ble_wss_char_value_t locCharValue;
locCharValue.connHandle = *eventParam;
locCharValue.charIndex = CY_BLE_WSS_WEIGHT_MEASUREMENT;
locCharValue.value = NULL;
cy_ble_eventHandlerFlag &= (uint8_t) ~CY_BLE_CALLBACK;
cy_ble_wsssReqHandle = CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE;
Cy_BLE_WSS_ApplCallback((uint32_t)CY_BLE_EVT_WSSS_INDICATION_CONFIRMED, &locCharValue);
}
}
}
/******************************************************************************
* Function Name: Cy_BLE_WSS_SetAdUserId
***************************************************************************//**
*
* Sets the User ID List to the advertisement packet. To be able to set the
* User ID List with this function, the advertisement packet should be
* configured in the Component GUI to include Weight Scale service UUID in the
* service Data field. The service Data should have enough room to fit the
* User ID List that is planned to be advertised. To reserve the room for the
* User ID List, the service Data for WSS should be filled with Unknown User
* ID - 0xFF. The amount of 0xFF's should be equal to the User List Size that is
* planned to be advertised.
* This function must be called when Cy_BLE_StackGetBleSsState() returns
* CY_BLE_BLESS_STATE_EVENT_CLOSE state.
*
* \param listSize: The size of the User List.
* \param userIdList: The array contains a User List.
* \param advertisingParamIndex: The index of the peripheral and broadcast
* configuration in the customizer. For example:
* * CY_BLE_PERIPHERAL_CONFIGURATION_0_INDEX
* * CY_BLE_BROADCASTER_CONFIGURATION_0_INDEX
*
* \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 | On NULL pointer, Data length in input parameter exceeds maximum advertisement packet length.
* CY_BLE_ERROR_INVALID_OPERATION | The advertisement packet doesn't contain the User List or it is to small or ADV event is not closed.
*
******************************************************************************/
cy_en_ble_api_result_t Cy_BLE_WSS_SetAdUserId(uint8_t listSize,
const uint8_t userIdList[],
uint8_t advertisingParamIndex)
{
cy_en_ble_api_result_t apiResult = CY_BLE_ERROR_INVALID_OPERATION;
uint32_t i;
uint32_t fFlag = 0u;
uint8_t adLength = 0u;
uint8_t byteCounter = 0u;
if((advertisingParamIndex >= cy_ble_configPtr->params->gappConfCount) || (userIdList == NULL) ||
(listSize > (CY_BLE_GAP_MAX_ADV_DATA_LEN - CY_BLE_AD_SERVICE_DATA_OVERHEAD)))
{
apiResult = CY_BLE_ERROR_INVALID_PARAMETER;
}
else
{
while((byteCounter < cy_ble_configPtr->discoveryModeInfo[advertisingParamIndex].advData->advDataLen) &&
(fFlag == 0u))
{
adLength = cy_ble_configPtr->discoveryModeInfo[advertisingParamIndex].advData->advData[byteCounter];
if(adLength != 0u)
{
uint16_t servUuid;
/* Increment byte counter so that it points to AD type field */
byteCounter++;
servUuid = Cy_BLE_Get16ByPtr(&cy_ble_configPtr->discoveryModeInfo[advertisingParamIndex].advData->
advData[byteCounter + 1u]);
/* Check whether "Service Data" AD type is found and service UUID is WSS UUID */
if((cy_ble_configPtr->discoveryModeInfo[advertisingParamIndex].advData->advData[byteCounter] ==
CY_BLE_AD_TYPE_SERVICE_DATA) && (servUuid == CY_BLE_UUID_WEIGHT_SCALE_SERVICE))
{
/* WSS service Data was found. Set flag and exit the loop. */
fFlag = 1u;
}
else
{
byteCounter += adLength;
}
}
else
{
/* End of advertisement data structure was encountered so exit loop. */
break;
}
}
if(fFlag != 0u)
{
/* Check whether there is enough space to fit user index list */
if((adLength - CY_BLE_AD_SERVICE_DATA_OVERHEAD) >= listSize)
{
/* Increment byte counter so that it points to data value */
byteCounter += CY_BLE_AD_SERVICE_DATA_OVERHEAD;
for(i = 0u; i < ((uint32_t)adLength - CY_BLE_AD_SERVICE_DATA_OVERHEAD); i++)
{
if(i <= listSize)
{
/* Copy user index element to advertisement data byte */
cy_ble_configPtr->discoveryModeInfo[advertisingParamIndex].advData->advData[byteCounter + i] =
userIdList[i];
}
else
{
/* Fill remaining bytes with "Unknown User" ID */
cy_ble_configPtr->discoveryModeInfo[advertisingParamIndex].advData->advData[byteCounter + i] =
CY_BLE_WSS_UNKNOWN_USER;
}
}
/* We are done. Indicate success. */
apiResult = CY_BLE_SUCCESS;
if((Cy_BLE_GetAdvertisementState() == CY_BLE_ADV_STATE_ADVERTISING) &&
(cy_ble_advIndex == advertisingParamIndex))
{
/* Update the advertisement packet if the device is in the advertising mode. */
apiResult = Cy_BLE_GAPP_UpdateAdvScanData(&cy_ble_configPtr->discoveryModeInfo[cy_ble_advIndex]);
}
}
}
}
return(apiResult);
}
/******************************************************************************
* Function Name: Cy_BLE_WSS_GetAdUserIdListSize
***************************************************************************//**
*
* Returns the size (in bytes) of the User ID List in the advertisement packet.
*
* \param advertisingParamIndex: The index of the peripheral and broadcast
* configuration in the customizer. For example:
* * CY_BLE_PERIPHERAL_CONFIGURATION_0_INDEX
* * CY_BLE_BROADCASTER_CONFIGURATION_0_INDEX
*
* \return
* Size of User ID List.
*
******************************************************************************/
uint8_t Cy_BLE_WSS_GetAdUserIdListSize(uint8_t advertisingParamIndex)
{
uint8_t uiCount = 0u;
uint8_t adLength = 0u;
uint32_t fFlag = 0u;
uint8_t byteCounter = 0u;
if(advertisingParamIndex >= cy_ble_configPtr->params->gappConfCount)
{
uiCount = 0u;
}
else
{
while((byteCounter < cy_ble_configPtr->discoveryModeInfo[advertisingParamIndex].advData->advDataLen))
{
adLength = cy_ble_configPtr->discoveryModeInfo[advertisingParamIndex].advData->advData[byteCounter];
if(adLength != 0u)
{
uint16_t servUuid;
/* Increment byte counter so that it points to AD type field */
byteCounter++;
servUuid = Cy_BLE_Get16ByPtr(&cy_ble_configPtr->discoveryModeInfo[advertisingParamIndex].advData->
advData[byteCounter + 1u]);
/* Check whether "Service Data" AD type is found and service UUID is WSS UUID */
if((cy_ble_configPtr->discoveryModeInfo[advertisingParamIndex].advData->advData[byteCounter] ==
CY_BLE_AD_TYPE_SERVICE_DATA) && (servUuid == CY_BLE_UUID_WEIGHT_SCALE_SERVICE))
{
/* WSS service Data was found. Set flag and exit the loop. */
fFlag = 1u;
}
else
{
byteCounter += adLength;
}
}
else
{
/* End of advertisement data structure was encountered so exit loop. */
break;
}
}
if(fFlag != 0u)
{
uiCount = adLength - CY_BLE_AD_SERVICE_DATA_OVERHEAD;
}
}
return(uiCount);
}
/******************************************************************************
* Function Name: Cy_BLE_WSSS_SetCharacteristicValue
***************************************************************************//**
*
* Sets a value for one of two characteristic values of the Weight Scale
* service. The characteristic is identified by charIndex.
*
* \param charIndex: The index of a Weight Scale 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 request was handled successfully.
* CY_BLE_ERROR_INVALID_PARAMETER | Validation of the input parameter failed.
*
******************************************************************************/
cy_en_ble_api_result_t Cy_BLE_WSSS_SetCharacteristicValue(cy_en_ble_wss_char_index_t charIndex,
uint8_t attrSize,
uint8_t *attrValue)
{
cy_en_ble_api_result_t apiResult = CY_BLE_ERROR_INVALID_PARAMETER;
cy_stc_ble_gatts_db_attr_val_info_t dbAttrValInfo;
dbAttrValInfo.connHandle.bdHandle = 0u;
dbAttrValInfo.connHandle.attId = 0u;
dbAttrValInfo.handleValuePair.value.len = attrSize;
dbAttrValInfo.handleValuePair.value.val = attrValue;
dbAttrValInfo.offset = 0u;
dbAttrValInfo.flags = CY_BLE_GATT_DB_LOCALLY_INITIATED;
if((attrValue != NULL) && (charIndex < CY_BLE_WSS_CHAR_COUNT))
{
/* Fill structure */
if(charIndex == CY_BLE_WSS_WEIGHT_SCALE_FEATURE)
{
dbAttrValInfo.handleValuePair.attrHandle =
cy_ble_wsssConfigPtr->attrInfo->charInfo[CY_BLE_WSS_WEIGHT_SCALE_FEATURE].charHandle;
}
else
{
dbAttrValInfo.handleValuePair.attrHandle =
cy_ble_wsssConfigPtr->attrInfo->charInfo[CY_BLE_WSS_WEIGHT_MEASUREMENT].charHandle;
}
if(Cy_BLE_GATTS_WriteAttributeValueCCCD(&dbAttrValInfo) == CY_BLE_GATT_ERR_NONE)
{
/* Indicate success */
apiResult = CY_BLE_SUCCESS;
}
}
/* Return status */
return(apiResult);
}
/******************************************************************************
* Function Name: Cy_BLE_WSSS_GetCharacteristicValue
***************************************************************************//**
*
* Reads a characteristic value of the Weight Scale service, which is identified
* by charIndex from the GATT database.
*
* \param charIndex: The index of the Weight Scale service characteristic.
* \param attrSize: The size of the Weight Scale service 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 request was handled successfully.
* CY_BLE_ERROR_INVALID_PARAMETER | Validation of the input parameter failed.
*
******************************************************************************/
cy_en_ble_api_result_t Cy_BLE_WSSS_GetCharacteristicValue(cy_en_ble_wss_char_index_t charIndex,
uint8_t attrSize,
uint8_t *attrValue)
{
cy_en_ble_api_result_t apiResult = CY_BLE_ERROR_INVALID_PARAMETER;
cy_stc_ble_gatts_db_attr_val_info_t dbAttrValInfo;
dbAttrValInfo.connHandle.bdHandle = 0u;
dbAttrValInfo.connHandle.attId = 0u;
dbAttrValInfo.handleValuePair.value.len = attrSize;
dbAttrValInfo.handleValuePair.value.val = attrValue;
dbAttrValInfo.offset = 0u;
dbAttrValInfo.flags = CY_BLE_GATT_DB_LOCALLY_INITIATED;
if((attrValue != NULL) && (charIndex < CY_BLE_WSS_CHAR_COUNT))
{
if(charIndex == CY_BLE_WSS_WEIGHT_SCALE_FEATURE)
{
dbAttrValInfo.handleValuePair.attrHandle =
cy_ble_wsssConfigPtr->attrInfo->charInfo[CY_BLE_WSS_WEIGHT_SCALE_FEATURE].charHandle;
}
else
{
dbAttrValInfo.handleValuePair.attrHandle =
cy_ble_wsssConfigPtr->attrInfo->charInfo[CY_BLE_WSS_WEIGHT_MEASUREMENT].charHandle;
}
/* Get characteristic value from GATT database */
if(Cy_BLE_GATTS_ReadAttributeValueCCCD(&dbAttrValInfo) == CY_BLE_GATT_ERR_NONE)
{
/* Indicate success */
apiResult = CY_BLE_SUCCESS;
}
}
/* Return status */
return(apiResult);
}
/******************************************************************************
* Function Name: Cy_BLE_WSSS_SetCharacteristicDescriptor
***************************************************************************//**
*
* Sets the characteristic descriptor of the specified characteristic.
*
* \param connHandle: The connection handle.
* \param charIndex: The index of the service characteristic.
* \param descrIndex: The index of the descriptor.
* \param attrSize: The size of the characteristic descriptor attribute.
* \param attrValue: The pointer to the descriptor value data to 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_en_ble_api_result_t Cy_BLE_WSSS_SetCharacteristicDescriptor(cy_stc_ble_conn_handle_t connHandle,
cy_en_ble_wss_char_index_t charIndex,
cy_en_ble_wss_descr_index_t descrIndex,
uint8_t attrSize,
uint8_t *attrValue)
{
cy_en_ble_api_result_t apiResult = CY_BLE_ERROR_INVALID_PARAMETER;
if((charIndex == CY_BLE_WSS_WEIGHT_MEASUREMENT) && (descrIndex == CY_BLE_WSS_CCCD) && (attrValue != NULL))
{
cy_stc_ble_gatts_db_attr_val_info_t dbAttrValInfo;
dbAttrValInfo.handleValuePair.attrHandle = cy_ble_wsssConfigPtr->attrInfo->charInfo[CY_BLE_WSS_WEIGHT_MEASUREMENT].
descrHandle[CY_BLE_WSS_CCCD];
dbAttrValInfo.handleValuePair.value.len = attrSize;
dbAttrValInfo.handleValuePair.value.val = attrValue;
dbAttrValInfo.connHandle = connHandle;
dbAttrValInfo.offset = 0u;
dbAttrValInfo.flags = CY_BLE_GATT_DB_LOCALLY_INITIATED;
/* Read characteristic value from database */
if(Cy_BLE_GATTS_WriteAttributeValueCCCD(&dbAttrValInfo) == CY_BLE_GATT_ERR_NONE)
{
apiResult = CY_BLE_SUCCESS;
}
}
return(apiResult);
}
/******************************************************************************
* Function Name: Cy_BLE_WSSS_GetCharacteristicDescriptor
***************************************************************************//**
*
* Reads a a characteristic descriptor of a specified characteristic of the
* Weight Scale service from the GATT database.
*
* \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.
* \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 request was handled successfully.
* CY_BLE_ERROR_INVALID_PARAMETER | Validation of the input parameter failed.
*
******************************************************************************/
cy_en_ble_api_result_t Cy_BLE_WSSS_GetCharacteristicDescriptor(cy_stc_ble_conn_handle_t connHandle,
cy_en_ble_wss_char_index_t charIndex,
cy_en_ble_wss_descr_index_t descrIndex,
uint8_t attrSize,
uint8_t *attrValue)
{
cy_en_ble_api_result_t apiResult = CY_BLE_ERROR_INVALID_PARAMETER;
if((charIndex == CY_BLE_WSS_WEIGHT_MEASUREMENT) && (descrIndex == CY_BLE_WSS_CCCD) && (attrValue != NULL))
{
if(cy_ble_wsssConfigPtr->attrInfo->charInfo[CY_BLE_WSS_WEIGHT_MEASUREMENT].descrHandle[CY_BLE_WSS_CCCD] !=
CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE)
{
cy_stc_ble_gatts_db_attr_val_info_t dbAttrValInfo;
dbAttrValInfo.handleValuePair.attrHandle = cy_ble_wsssConfigPtr->attrInfo->charInfo[CY_BLE_WSS_WEIGHT_MEASUREMENT].
descrHandle[CY_BLE_WSS_CCCD];
dbAttrValInfo.handleValuePair.value.len = attrSize;
dbAttrValInfo.handleValuePair.value.val = attrValue;
dbAttrValInfo.connHandle = connHandle;
dbAttrValInfo.offset = 0u;
dbAttrValInfo.flags = CY_BLE_GATT_DB_LOCALLY_INITIATED;
/* Get characteristic value from GATT database */
if(Cy_BLE_GATTS_ReadAttributeValueCCCD(&dbAttrValInfo) == CY_BLE_GATT_ERR_NONE)
{
/* Indicate success */
apiResult = CY_BLE_SUCCESS;
}
}
}
return(apiResult);
}
/******************************************************************************
* Function Name: Cy_BLE_WSSS_SendIndication
***************************************************************************//**
*
* Sends an indication with a characteristic value of the Weight Scale service,
* which is a value specified by charIndex, to the client's device.
*
* On enabling indication successfully it sends out a 'Handle Value Indication' which
* results in #CY_BLE_EVT_WSSC_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.
* \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's 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 | This operation is not permitted.
* 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 = #CY_BLE_SUCCESS)
* the following events can appear: \n
* If the WSS service-specific callback is registered
* with \ref Cy_BLE_WSS_RegisterAttrCallback():
* * #CY_BLE_EVT_WSSS_INDICATION_CONFIRMED - If the indication is
* successfully delivered to the peer device.
*
* Otherwise (if the WSS service-specific callback is not registered):
* * #CY_BLE_EVT_GATTS_HANDLE_VALUE_CNF - If the indication is
* successfully delivered to the peer device.
*
*
******************************************************************************/
cy_en_ble_api_result_t Cy_BLE_WSSS_SendIndication(cy_stc_ble_conn_handle_t connHandle,
cy_en_ble_wss_char_index_t charIndex,
uint8_t attrSize,
uint8_t *attrValue)
{
/* Store new data in database */
cy_en_ble_api_result_t apiResult = CY_BLE_ERROR_INVALID_PARAMETER;
if(charIndex == CY_BLE_WSS_WEIGHT_MEASUREMENT)
{
/* 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(!CY_BLE_IS_INDICATION_ENABLED(connHandle.attId,
cy_ble_wsssConfigPtr->attrInfo->charInfo[CY_BLE_WSS_WEIGHT_MEASUREMENT].descrHandle[
CY_BLE_WSS_CCCD]))
{
apiResult = CY_BLE_ERROR_IND_DISABLED;
}
else
{
/* Fill all fields of Write Request structure ... */
cy_stc_ble_gatts_handle_value_ind_t indReqParam;
indReqParam.handleValPair.attrHandle = cy_ble_wsssConfigPtr->attrInfo->charInfo[CY_BLE_WSS_WEIGHT_MEASUREMENT].charHandle;
indReqParam.handleValPair.value.val = attrValue;
indReqParam.handleValPair.value.len = attrSize;
indReqParam.connHandle = connHandle;
/* Send indication to client using previously filled structure */
apiResult = Cy_BLE_GATTS_Indication(&indReqParam);
/* Save handle to support service-specific value confirmation response from client */
if(apiResult == CY_BLE_SUCCESS)
{
cy_ble_wsssReqHandle = indReqParam.handleValPair.attrHandle;
}
}
}
return(apiResult);
}
/******************************************************************************
* Function Name: Cy_BLE_WSSC_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_WSSC_DiscoverCharacteristicsEventHandler(cy_stc_ble_disc_char_info_t *discCharInfo)
{
/* WSS characteristics UUIDs */
static const cy_ble_uuid16_t cy_ble_wsscCharUuid[CY_BLE_WSS_CHAR_COUNT] =
{
CY_BLE_UUID_CHAR_WEIGHT_SCALE_FEATURE,
CY_BLE_UUID_CHAR_WEIGHT_MEASUREMENT
};
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 wssDiscIdx = cy_ble_wsscConfigPtr->serviceDiscIdx;
uint32_t i;
if((discCharInfo->uuidFormat == CY_BLE_GATT_16_BIT_UUID_FORMAT) &&
(cy_ble_configPtr->context->discovery[discIdx].servCount == wssDiscIdx))
{
/* Update last characteristic endHandle to declaration handle of this characteristic */
if(lastEndHandle[discIdx] != NULL)
{
*lastEndHandle[discIdx] = discCharInfo->charDeclHandle - 1u;
lastEndHandle[discIdx] = NULL;
}
/* Search through all available characteristics */
for(i = (uint32_t)CY_BLE_WSS_WEIGHT_SCALE_FEATURE; (i < (uint32_t)CY_BLE_WSS_CHAR_COUNT); i++)
{
if(cy_ble_wsscCharUuid[i] == discCharInfo->uuid.uuid16)
{
/* Get pointer (with offset) to WSS client structure with attribute handles */
cy_stc_ble_wssc_t *wsscPtr = (cy_stc_ble_wssc_t *)&cy_ble_wsscConfigPtr->attrInfo[discIdx];
if(wsscPtr->charInfo[i].valueHandle == CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE)
{
wsscPtr->charInfo[i].valueHandle = discCharInfo->valueHandle;
wsscPtr->charInfo[i].properties = discCharInfo->properties;
lastEndHandle[discIdx] = &wsscPtr->charInfo[i].endHandle;
break;
}
else
{
Cy_BLE_ApplCallback((uint32_t)CY_BLE_EVT_GATTC_CHAR_DUPLICATION, &discCharInfo);
}
}
}
/* 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_WSSC_DiscoverCharDescriptorsEventHandler
***************************************************************************//**
*
* This function is called on receiving a #CY_BLE_EVT_GATTC_FIND_INFO_RSP event.
* Based on the descriptor 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_WSSC_DiscoverCharDescriptorsEventHandler(cy_stc_ble_disc_descr_info_t *discDescrInfo)
{
uint32_t notSupportedDescr = 0u;
uint32_t discIdx = Cy_BLE_GetDiscoveryIdx(discDescrInfo->connHandle);
uint32_t wssDiscIdx = cy_ble_wsscConfigPtr->serviceDiscIdx;
uint32_t descIdx;
if(cy_ble_configPtr->context->discovery[discIdx].servCount == wssDiscIdx)
{
switch(discDescrInfo->uuid.uuid16)
{
case CY_BLE_UUID_CHAR_CLIENT_CONFIG:
descIdx = (uint32_t)CY_BLE_WSS_CCCD;
break;
default:
/* Not supported descriptor */
notSupportedDescr = 1u;
break;
}
if(notSupportedDescr == 0u)
{
/* Get pointer (with offset) to WSS client structure with attribute handles */
cy_stc_ble_wssc_t *wsscPtr = (cy_stc_ble_wssc_t *)&cy_ble_wsscConfigPtr->attrInfo[discIdx];
if(wsscPtr->charInfo[cy_ble_configPtr->context->discovery[discIdx].charCount].descrHandle[descIdx] ==
CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE)
{
wsscPtr->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_WSSC_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_WSSC_GetCharRange(cy_stc_ble_disc_range_info_t *charRangeInfo)
{
uint32_t discIdx = Cy_BLE_GetDiscoveryIdx(charRangeInfo->connHandle);
uint32_t wssDiscIdx = cy_ble_wsscConfigPtr->serviceDiscIdx;
uint32_t exitFlag = 0u;
if(cy_ble_configPtr->context->discovery[discIdx].servCount == wssDiscIdx)
{
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_WSS_CHAR_COUNT) && (exitFlag == 0u))
{
/* Get pointer (with offset) to WSS client structure with attribute handles */
cy_stc_ble_wssc_t *wsscPtr = (cy_stc_ble_wssc_t *)&cy_ble_wsscConfigPtr->attrInfo[discIdx];
uint32_t charIdx = cy_ble_configPtr->context->discovery[discIdx].charCount;
if((wsscPtr->charInfo[charIdx].endHandle - wsscPtr->charInfo[charIdx].valueHandle) != 0u)
{
/* Read characteristic range */
charRangeInfo->range.startHandle = wsscPtr->charInfo[charIdx].valueHandle + 1u;
charRangeInfo->range.endHandle = wsscPtr->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_WSSC_IndicationEventHandler
***************************************************************************//**
*
* Handles an indication event for Weight Scale service.
*
* \param eventParam: The pointer to the data structure specified by an event.
*
******************************************************************************/
static void Cy_BLE_WSSC_IndicationEventHandler(cy_stc_ble_gattc_handle_value_ind_param_t *eventParam)
{
uint32_t discIdx = Cy_BLE_GetDiscoveryIdx(eventParam->connHandle);
if((discIdx < cy_ble_configPtr->params->maxClientCount) && (Cy_BLE_WSS_ApplCallback != NULL))
{
/* Get pointer (with offset) to WSS client structure with attribute handles */
cy_stc_ble_wssc_t *wsscPtr = (cy_stc_ble_wssc_t *)&cy_ble_wsscConfigPtr->attrInfo[discIdx];
if(wsscPtr->charInfo[CY_BLE_WSS_WEIGHT_MEASUREMENT].valueHandle ==
eventParam->handleValPair.attrHandle)
{
cy_stc_ble_wss_char_value_t indicationValue;
indicationValue.connHandle = eventParam->connHandle;
indicationValue.charIndex = CY_BLE_WSS_WEIGHT_MEASUREMENT;
indicationValue.value = &eventParam->handleValPair.value;
Cy_BLE_WSS_ApplCallback((uint32_t)CY_BLE_EVT_WSSC_INDICATION, &indicationValue);
cy_ble_eventHandlerFlag &= (uint8_t) ~CY_BLE_CALLBACK;
}
}
}
/******************************************************************************
* Function Name: Cy_BLE_WSSC_ReadResponseEventHandler
***************************************************************************//**
*
* Handles a Read Response event for the Weight Scale service.
*
* \param eventParam: The pointer to the data structure specified by an event.
*
******************************************************************************/
static void Cy_BLE_WSSC_ReadResponseEventHandler(cy_stc_ble_gattc_read_rsp_param_t *eventParam)
{
uint8_t locReqHandle = 1u;
uint32_t discIdx = Cy_BLE_GetDiscoveryIdx(eventParam->connHandle);
if((discIdx < cy_ble_configPtr->params->maxClientCount) && (Cy_BLE_WSS_ApplCallback != NULL) &&
(cy_ble_wsscReqHandle[discIdx] != CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE))
{
/* Get pointer (with offset) to WSS client structure with attribute handles */
cy_stc_ble_wssc_t *wsscPtr = (cy_stc_ble_wssc_t *)&cy_ble_wsscConfigPtr->attrInfo[discIdx];
if((cy_ble_wsscReqHandle[discIdx] == wsscPtr->charInfo[CY_BLE_WSS_WEIGHT_SCALE_FEATURE].valueHandle) ||
(cy_ble_wsscReqHandle[discIdx] == wsscPtr->charInfo[CY_BLE_WSS_WEIGHT_MEASUREMENT].valueHandle))
{
cy_stc_ble_wss_char_value_t locCharValue;
if(cy_ble_wsscReqHandle[discIdx] == wsscPtr->charInfo[CY_BLE_WSS_WEIGHT_SCALE_FEATURE].valueHandle)
{
locCharValue.charIndex = CY_BLE_WSS_WEIGHT_SCALE_FEATURE;
}
else
{
locCharValue.charIndex = CY_BLE_WSS_WEIGHT_MEASUREMENT;
}
locCharValue.connHandle = eventParam->connHandle;
locCharValue.value = &eventParam->value;
cy_ble_wsscReqHandle[discIdx] = CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE;
Cy_BLE_WSS_ApplCallback((uint32_t)CY_BLE_EVT_WSSC_READ_CHAR_RESPONSE, &locCharValue);
}
else if(cy_ble_wsscReqHandle[discIdx] ==
wsscPtr->charInfo[CY_BLE_WSS_WEIGHT_MEASUREMENT].descrHandle[CY_BLE_WSS_CCCD])
{
cy_stc_ble_wss_descr_value_t locDescrValue;
locDescrValue.connHandle = eventParam->connHandle;
locDescrValue.charIndex = CY_BLE_WSS_WEIGHT_MEASUREMENT;
locDescrValue.descrIndex = CY_BLE_WSS_CCCD;
locDescrValue.value = &eventParam->value;
cy_ble_wsscReqHandle[discIdx] = CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE;
Cy_BLE_WSS_ApplCallback((uint32_t)CY_BLE_EVT_WSSC_READ_DESCR_RESPONSE, &locDescrValue);
}
else
{
locReqHandle = 0u;
}
if(locReqHandle != 0u)
{
cy_ble_eventHandlerFlag &= (uint8_t) ~CY_BLE_CALLBACK;
}
}
}
/******************************************************************************
* Function Name: Cy_BLE_WSSC_WriteResponseEventHandler
***************************************************************************//**
*
* Handles a Write Response event for the Weight Scale service.
*
* \param eventParam: The pointer to a data structure specified by an event.
*
******************************************************************************/
static void Cy_BLE_WSSC_WriteResponseEventHandler(const cy_stc_ble_conn_handle_t *eventParam)
{
/* Check whether service handler was registered and request handle is valid */
uint32_t discIdx = Cy_BLE_GetDiscoveryIdx(*eventParam);
if((discIdx < cy_ble_configPtr->params->maxClientCount) && (Cy_BLE_WSS_ApplCallback != NULL) &&
(cy_ble_wsscReqHandle[discIdx] != CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE))
{
/* Get pointer (with offset) to WSS client structure with attribute handles */
cy_stc_ble_wssc_t *wsscPtr = (cy_stc_ble_wssc_t *)&cy_ble_wsscConfigPtr->attrInfo[discIdx];
if(cy_ble_wsscReqHandle[discIdx] ==
wsscPtr->charInfo[CY_BLE_WSS_WEIGHT_MEASUREMENT].descrHandle[CY_BLE_WSS_CCCD])
{
cy_stc_ble_wss_descr_value_t locDescrValue;
locDescrValue.connHandle = *eventParam;
locDescrValue.charIndex = CY_BLE_WSS_WEIGHT_MEASUREMENT;
locDescrValue.descrIndex = CY_BLE_WSS_CCCD;
locDescrValue.value = NULL;
cy_ble_wsscReqHandle[discIdx] = CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE;
Cy_BLE_WSS_ApplCallback((uint32_t)CY_BLE_EVT_WSSC_WRITE_DESCR_RESPONSE, &locDescrValue);
cy_ble_eventHandlerFlag &= (uint8_t) ~CY_BLE_CALLBACK;
}
}
}
/******************************************************************************
* Function Name: Cy_BLE_WSSC_ErrorResponseEventHandler
***************************************************************************//**
*
* Handles an Error Response event for the Weight Scale service.
*
* \param eventParam - The pointer to a data structure specified by an event.
*
******************************************************************************/
static void Cy_BLE_WSSC_ErrorResponseEventHandler(const cy_stc_ble_gatt_err_param_t *eventParam)
{
if(eventParam != NULL)
{
uint32_t discIdx = Cy_BLE_GetDiscoveryIdx(eventParam->connHandle);
if(eventParam->errInfo.attrHandle == cy_ble_wsscReqHandle[discIdx])
{
cy_ble_wsscReqHandle[discIdx] = CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE;
}
}
}
/******************************************************************************
* Function Name: Cy_BLE_WSSC_GetCharacteristicValue
***************************************************************************//**
*
* This function is used to read a characteristic value, which is a value
* identified by charIndex, from the server.
*
* \param connHandle: The connection handle.
* \param charIndex: The index of the service characteristic. Starts with zero.
*
* \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
* In case of successful execution (return value = #CY_BLE_SUCCESS)
* the following events can appear: \n
* If the WSS service-specific callback is registered
* with \ref Cy_BLE_WSS_RegisterAttrCallback():
* * #CY_BLE_EVT_WSSC_READ_CHAR_RESPONSE - If the requested attribute is
* successfully read on the peer device, the details
* (charIndex , value, etc.) are provided with event parameter structure
* of type \ref cy_stc_ble_wss_char_value_t.
* .
* Otherwise (if an WSS 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_WSSC_GetCharacteristicValue(cy_stc_ble_conn_handle_t connHandle,
cy_en_ble_wss_char_index_t charIndex)
{
cy_en_ble_api_result_t apiResult;
uint32_t discIdx = Cy_BLE_GetDiscoveryIdx(connHandle);
/* Get pointer (with offset) to WSS client structure with attribute handles */
cy_stc_ble_wssc_t *wsscPtr = (cy_stc_ble_wssc_t *)&cy_ble_wsscConfigPtr->attrInfo[discIdx];
if(Cy_BLE_GetConnectionState(connHandle) != CY_BLE_CONN_STATE_CLIENT_DISCOVERED)
{
apiResult = CY_BLE_ERROR_INVALID_STATE;
}
else if((charIndex >= CY_BLE_WSS_CHAR_COUNT) || (discIdx >= cy_ble_configPtr->params->maxClientCount))
{
apiResult = CY_BLE_ERROR_INVALID_PARAMETER;
}
else if(CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE != wsscPtr->charInfo[charIndex].valueHandle)
{
cy_stc_ble_gattc_read_req_t readReqParam;
readReqParam.attrHandle = wsscPtr->charInfo[charIndex].valueHandle;
readReqParam.connHandle = connHandle;
apiResult = Cy_BLE_GATTC_ReadCharacteristicValue(&readReqParam);
/* Save handle to support service-specific read response from device */
if(apiResult == CY_BLE_SUCCESS)
{
cy_ble_wsscReqHandle[discIdx] = wsscPtr->charInfo[charIndex].valueHandle;
}
}
else
{
apiResult = CY_BLE_ERROR_INVALID_PARAMETER;
}
return(apiResult);
}
/******************************************************************************
* Function Name: Cy_BLE_WSSC_SetCharacteristicDescriptor
***************************************************************************//**
*
* This function is used to write the characteristic descriptor to the server,
* which is identified by charIndex and descrIndex.
*
* 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_WSSS_INDICATION_ENABLED
* * #CY_BLE_EVT_WSSS_INDICATION_DISABLED
*
* \param connHandle: The connection handle.
* \param charIndex: The index of the service characteristic. Starts with zero.
* \param descrIndex: The index of the service characteristic descriptor.
* \param attrSize: The size of the characteristic 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 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 | The state is not valid.
* CY_BLE_ERROR_MEMORY_ALLOCATION_FAILED | Memory allocation failed.
*
* \events
* In case of successful execution (return value = #CY_BLE_SUCCESS)
* the following events can appear: \n
* If the WSS service-specific callback is registered
* with \ref Cy_BLE_WSS_RegisterAttrCallback():
* * #CY_BLE_EVT_WSSC_WRITE_DESCR_RESPONSE - If the requested attribute is
* successfully written on the peer device, the details
* (charIndex, descrIndex, etc.) are provided with event parameter structure
* of type \ref cy_stc_ble_wss_descr_value_t.
*
* Otherwise (if an WSS 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 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_WSSC_SetCharacteristicDescriptor(cy_stc_ble_conn_handle_t connHandle,
cy_en_ble_wss_char_index_t charIndex,
cy_en_ble_wss_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 WSS client structure with attribute handles */
cy_stc_ble_wssc_t *wsscPtr = (cy_stc_ble_wssc_t *)&cy_ble_wsscConfigPtr->attrInfo[discIdx];
if(Cy_BLE_GetConnectionState(connHandle) != CY_BLE_CONN_STATE_CLIENT_DISCOVERED)
{
apiResult = CY_BLE_ERROR_INVALID_STATE;
}
else if((charIndex >= CY_BLE_WSS_CHAR_COUNT) || (descrIndex >= CY_BLE_WSS_DESCR_COUNT) ||
(discIdx >= cy_ble_configPtr->params->maxClientCount))
{
apiResult = CY_BLE_ERROR_INVALID_PARAMETER;
}
else if(wsscPtr->charInfo[CY_BLE_WSS_WEIGHT_MEASUREMENT].descrHandle[CY_BLE_WSS_CCCD] !=
CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE)
{
/* Fill all fields of Write Request structure ... */
cy_stc_ble_gattc_write_req_t writeReqParam;
writeReqParam.handleValPair.attrHandle = wsscPtr->charInfo[CY_BLE_WSS_WEIGHT_MEASUREMENT].
descrHandle[CY_BLE_WSS_CCCD];
writeReqParam.handleValPair.value.val = attrValue;
writeReqParam.handleValPair.value.len = attrSize;
writeReqParam.connHandle = connHandle;
/* ... and send request to server's device. */
apiResult = Cy_BLE_GATTC_WriteCharacteristicDescriptors(&writeReqParam);
/* Save handle to support service-specific read response from device */
if(apiResult == CY_BLE_SUCCESS)
{
cy_ble_wsscReqHandle[discIdx] = writeReqParam.handleValPair.attrHandle;
}
}
else
{
apiResult = CY_BLE_ERROR_INVALID_PARAMETER;
}
return(apiResult);
}
/******************************************************************************
* Function Name: Cy_BLE_WSSC_GetCharacteristicDescriptor
***************************************************************************//**
*
* Sends a request to get the characteristic descriptor of the specified
* characteristic of the service.
*
* \param connHandle: The connection handle.
* \param charIndex: The index of the service characteristic. Starts with zero.
* \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 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 WSS service-specific callback is registered
* with \ref Cy_BLE_WSS_RegisterAttrCallback():
* * #CY_BLE_EVT_WSSC_READ_DESCR_RESPONSE - 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_wss_descr_value_t.
* .
* Otherwise (if an WSS 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_WSSC_GetCharacteristicDescriptor(cy_stc_ble_conn_handle_t connHandle,
cy_en_ble_wss_char_index_t charIndex,
cy_en_ble_wss_descr_index_t descrIndex)
{
cy_en_ble_api_result_t apiResult;
uint32_t discIdx = Cy_BLE_GetDiscoveryIdx(connHandle);
/* Get pointer (with offset) to WSS client structure with attribute handles */
cy_stc_ble_wssc_t *wsscPtr = (cy_stc_ble_wssc_t *)&cy_ble_wsscConfigPtr->attrInfo[discIdx];
if(Cy_BLE_GetConnectionState(connHandle) != CY_BLE_CONN_STATE_CLIENT_DISCOVERED)
{
apiResult = CY_BLE_ERROR_INVALID_STATE;
}
else if((charIndex >= CY_BLE_WSS_CHAR_COUNT) || (descrIndex >= CY_BLE_WSS_DESCR_COUNT) ||
(discIdx >= cy_ble_configPtr->params->maxClientCount))
{
apiResult = CY_BLE_ERROR_INVALID_PARAMETER;
}
else if(wsscPtr->charInfo[CY_BLE_WSS_WEIGHT_MEASUREMENT].descrHandle[CY_BLE_WSS_CCCD] !=
CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE)
{
cy_stc_ble_gattc_read_req_t readReqParam;
readReqParam.attrHandle = wsscPtr->charInfo[CY_BLE_WSS_WEIGHT_MEASUREMENT].descrHandle[CY_BLE_WSS_CCCD];
readReqParam.connHandle = connHandle;
apiResult = Cy_BLE_GATTC_ReadCharacteristicDescriptors(&readReqParam);
/* Save handle to support service-specific read response from device */
if(apiResult == CY_BLE_SUCCESS)
{
cy_ble_wsscReqHandle[discIdx] = wsscPtr->charInfo[CY_BLE_WSS_WEIGHT_MEASUREMENT].
descrHandle[CY_BLE_WSS_CCCD];
}
}
else
{
apiResult = CY_BLE_ERROR_INVALID_PARAMETER;
}
return(apiResult);
}
/******************************************************************************
* Function Name: Cy_BLE_WSS_EventHandler
***************************************************************************//**
*
* Handles the events from the BLE Stack for the WSS 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_WSS_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_WSSS_EventHandlerCallback != NULL)
{
gattErr = Cy_BLE_WSSS_EventHandlerCallback(eventCode, eventParam);
}
/************************************
* Handling GATT Client events
***********************************/
if(Cy_BLE_WSSC_EventHandlerCallback != NULL)
{
(void)Cy_BLE_WSSC_EventHandlerCallback(eventCode, eventParam);
}
return(gattErr);
}
/******************************************************************************
* Function Name: Cy_BLE_WSSS_EventHandler
***************************************************************************//**
*
* Handles the server events from the BLE Stack for the WSS 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_WSSS_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_GATTS_WRITE_REQ:
gattErr = Cy_BLE_WSSS_WriteEventHandler((cy_stc_ble_gatts_write_cmd_req_param_t*)eventParam);
break;
case CY_BLE_EVT_GATTS_HANDLE_VALUE_CNF:
Cy_BLE_WSSS_ConfirmationEventHandler((cy_stc_ble_conn_handle_t*)eventParam);
break;
default:
break;
}
return (gattErr);
}
/******************************************************************************
* Function Name: Cy_BLE_WSSC_EventHandler
***************************************************************************//**
*
* Handles the client events from the BLE Stack for the WSS 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_WSSC_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_WSSC_DiscoverCharacteristicsEventHandler((cy_stc_ble_disc_char_info_t*)eventParam);
break;
case CY_BLE_EVT_GATTC_DISC_DESCR:
Cy_BLE_WSSC_DiscoverCharDescriptorsEventHandler((cy_stc_ble_disc_descr_info_t*)eventParam);
break;
case CY_BLE_EVT_GATTC_DISC_DESCR_GET_RANGE:
Cy_BLE_WSSC_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_WSSC_ErrorResponseEventHandler((cy_stc_ble_gatt_err_param_t*)eventParam);
}
}
break;
case CY_BLE_EVT_GATTC_HANDLE_VALUE_IND:
Cy_BLE_WSSC_IndicationEventHandler((cy_stc_ble_gattc_handle_value_ind_param_t*)eventParam);
break;
case CY_BLE_EVT_GATTC_READ_RSP:
Cy_BLE_WSSC_ReadResponseEventHandler((cy_stc_ble_gattc_read_rsp_param_t*)eventParam);
break;
case CY_BLE_EVT_GATTC_WRITE_RSP:
Cy_BLE_WSSC_WriteResponseEventHandler((cy_stc_ble_conn_handle_t*)eventParam);
break;
default:
break;
}
}
return(gattErr);
}
#endif /* CY_BLE_LIB_HOST_CORE */
#endif /* CY_IP_MXBLESS */
/* [] END OF FILE */