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cy_ble_cscs.c
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/***************************************************************************//**
* \file cy_ble_cscs.c
* \version 3.60
*
* \brief
* Contains the source code for the Cycling Speed and Cadence 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"
#include "cy_flash.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_CSCS_EventHandler(uint32_t eventCode, void *eventParam);
static cy_en_ble_gatt_err_code_t Cy_BLE_CSCSS_EventHandler(uint32_t eventCode, void *eventParam);
static cy_en_ble_gatt_err_code_t Cy_BLE_CSCSC_EventHandler(uint32_t eventCode, void *eventParam);
static cy_en_ble_gatt_err_code_t Cy_BLE_CSCSS_WriteEventHandler(cy_stc_ble_gatts_write_cmd_req_param_t *eventParam);
static void Cy_BLE_CSCSS_ConfirmationEventHandler(const cy_stc_ble_conn_handle_t *eventParam);
static void Cy_BLE_CSCSC_DiscoverCharacteristicsEventHandler(cy_stc_ble_disc_char_info_t *discCharInfo);
static void Cy_BLE_CSCSC_DiscoverCharDescriptorsEventHandler(cy_stc_ble_disc_descr_info_t *discDescrInfo);
static void Cy_BLE_CSCSC_GetCharRange(cy_stc_ble_disc_range_info_t *charRangeInfo);
static void Cy_BLE_CSCSC_NotificationEventHandler(cy_stc_ble_gattc_handle_value_ntf_param_t *eventParam);
static void Cy_BLE_CSCSC_IndicationEventHandler(cy_stc_ble_gattc_handle_value_ind_param_t *eventParam);
static void Cy_BLE_CSCSC_WriteResponseEventHandler(const cy_stc_ble_conn_handle_t *eventParam);
static void Cy_BLE_CSCSC_ReadResponseEventHandler(cy_stc_ble_gattc_read_rsp_param_t *eventParam);
static void Cy_BLE_CSCSC_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_CSCS_ApplCallback = NULL;
static cy_ble_event_handler_cb_t Cy_BLE_CSCSC_EventHandlerCallback = NULL;
static cy_ble_event_handler_cb_t Cy_BLE_CSCSS_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_cscssReqHandle;
/* The internal storage for the last request handle to check response */
static cy_ble_gatt_db_attr_handle_t cy_ble_cscscReqHandle[CY_BLE_MAX_CONNECTION_INSTANCES];
/* The pointer to a global BLE CSCS server config structure */
const cy_stc_ble_cscss_config_t *cy_ble_cscssConfigPtr = NULL;
/* The pointer to a global BLE CSCS client config structure */
const cy_stc_ble_cscsc_config_t *cy_ble_cscscConfigPtr = NULL;
/******************************************************************************
* Function Name: Cy_BLE_CSCSS_Init
***************************************************************************//**
*
* This function initializes server of the Cycling Speed and Cadence service.
*
* \param config: Configuration structure for the CSCS.
*
* \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_CSCSS_Init(const cy_stc_ble_cscss_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_cscssConfigPtr = config;
/* Registers event handler for the CSCS */
apiResult = Cy_BLE_RegisterServiceEventHandler(&Cy_BLE_CSCS_EventHandler);
/* Registers a pointer to server event handler function */
Cy_BLE_CSCSS_EventHandlerCallback = &Cy_BLE_CSCSS_EventHandler;
cy_ble_cscssReqHandle = CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE;
}
return(apiResult);
}
/******************************************************************************
* Function Name: Cy_BLE_CSCSC_Init
***************************************************************************//**
*
* This function initializes client of the Cycling Speed and Cadence service.
*
* \param config: Configuration structure for the CSCS.
*
* \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_CSCSC_Init(const cy_stc_ble_cscsc_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_cscscConfigPtr = config;
/* Registers event handler for the CSCS */
apiResult = Cy_BLE_RegisterServiceEventHandler(&Cy_BLE_CSCS_EventHandler);
/* Registers a pointer to client event handler function */
Cy_BLE_CSCSC_EventHandlerCallback = &Cy_BLE_CSCSC_EventHandler;
for(idx = 0u; idx < cy_ble_configPtr->params->maxClientCount; idx++)
{
uint32 servCnt = cy_ble_configPtr->context->discServiCount;
uint32 cscsServIdx = cy_ble_cscscConfigPtr->serviceDiscIdx;
if(cy_ble_configPtr->context->serverInfo[(idx * servCnt) + cscsServIdx].range.startHandle ==
CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE)
{
/* Get pointer to CSCS client structure */
cy_stc_ble_cscsc_t *cscscPtr = (cy_stc_ble_cscsc_t *)&cy_ble_cscscConfigPtr->attrInfo[idx];
/* Clean client structure */
(void)memset(cscscPtr, 0, sizeof(cy_stc_ble_cscsc_t));
/* Initialize uuid */
cy_ble_configPtr->context->serverInfo[(idx * servCnt) + cscsServIdx].uuid =
CY_BLE_UUID_CYCLING_SPEED_AND_CADENCE_SERVICE;
}
cy_ble_cscscReqHandle[idx] = CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE;
}
}
return(apiResult);
}
/******************************************************************************
* Function Name: Cy_BLE_CSCS_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 CSCS 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_CSCSS_NOTIFICATION_ENABLED).
* * eventParam: Contains the parameters corresponding to the
* current event; (e.g. pointer to \ref cy_stc_ble_cscs_char_value_t
* structure that contains details of the characteristic
* for which the notification enabled event was triggered).
*
******************************************************************************/
void Cy_BLE_CSCS_RegisterAttrCallback(cy_ble_callback_t callbackFunc)
{
Cy_BLE_CSCS_ApplCallback = callbackFunc;
}
/*******************************************************************************
* Function Name: Cy_BLE_CSCSS_SetCharacteristicValue
****************************************************************************//**
*
* Sets characteristic value of the Cycling Speed and Cadence service, which is
* identified by charIndex, to the local database.
*
* \param charIndex: The index of a service characteristic of
* type cy_en_ble_cscs_char_index_t. Valid values are,
* * \ref CY_BLE_CSCS_CSC_FEATURE
* * \ref CY_BLE_CSCS_SENSOR_LOCATION
* \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_BLE_ERROR_GATT_DB_INVALID_ATTR_HANDLE| An optional characteristic is absent.
*
*******************************************************************************/
cy_en_ble_api_result_t Cy_BLE_CSCSS_SetCharacteristicValue(cy_en_ble_cscs_char_index_t charIndex,
uint8_t attrSize,
uint8_t *attrValue)
{
cy_en_ble_api_result_t apiResult = CY_BLE_ERROR_INVALID_PARAMETER;
if(CY_BLE_CSCS_CHAR_COUNT > charIndex)
{
if(cy_ble_cscssConfigPtr->attrInfo->charInfo[charIndex].charHandle != CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE)
{
cy_stc_ble_gatts_db_attr_val_info_t dbAttrValInfo;
dbAttrValInfo.connHandle.bdHandle = 0u;
dbAttrValInfo.connHandle.attId = 0u;
dbAttrValInfo.handleValuePair.attrHandle = cy_ble_cscssConfigPtr->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;
/* Store data in database */
if(Cy_BLE_GATTS_WriteAttributeValueCCCD(&dbAttrValInfo) == CY_BLE_GATT_ERR_NONE)
{
apiResult = CY_BLE_SUCCESS;
}
}
else
{
apiResult = CY_BLE_ERROR_GATT_DB_INVALID_ATTR_HANDLE;
}
}
return(apiResult);
}
/*******************************************************************************
* Function Name: Cy_BLE_CSCSS_GetCharacteristicValue
****************************************************************************//**
*
* Gets a characteristic value of the Cycling Speed and Cadence service, which
* is identified by charIndex, from the GATT database.
*
* \param charIndex: The index of a service characteristic of
* type cy_en_ble_cscs_char_index_t. Valid value is,
* * \ref CY_BLE_CSCS_SC_CONTROL_POINT.
* \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 | Optional characteristic is absent.
*
*******************************************************************************/
cy_en_ble_api_result_t Cy_BLE_CSCSS_GetCharacteristicValue(cy_en_ble_cscs_char_index_t charIndex,
uint8_t attrSize,
uint8_t *attrValue)
{
cy_en_ble_api_result_t apiResult = CY_BLE_ERROR_INVALID_PARAMETER;
if(CY_BLE_CSCS_CHAR_COUNT > charIndex)
{
if(cy_ble_cscssConfigPtr->attrInfo->charInfo[charIndex].charHandle != CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE)
{
cy_stc_ble_gatts_db_attr_val_info_t dbAttrValInfo;
dbAttrValInfo.connHandle.bdHandle = 0u;
dbAttrValInfo.connHandle.attId = 0u;
dbAttrValInfo.handleValuePair.attrHandle = cy_ble_cscssConfigPtr->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;
/* Read characteristic value from database */
if(Cy_BLE_GATTS_ReadAttributeValueCCCD(&dbAttrValInfo) == CY_BLE_GATT_ERR_NONE)
{
apiResult = CY_BLE_SUCCESS;
}
}
else
{
apiResult = CY_BLE_ERROR_GATT_DB_INVALID_ATTR_HANDLE;
}
}
return(apiResult);
}
/*******************************************************************************
* Function Name: Cy_BLE_CSCSS_GetCharacteristicDescriptor
****************************************************************************//**
*
* Gets a characteristic descriptor of a specified characteristic of the Cycling
* Speed and Cadence service, from the GATT database.
*
* \param connHandle: The connection handle
* \param charIndex: The index of a service characteristic of type \ref cy_en_ble_cscs_char_index_t.
* Valid values are,
* * \ref CY_BLE_CSCS_CSC_MEASUREMENT
* * \ref CY_BLE_CSCS_SC_CONTROL_POINT.
* \param descrIndex: The index of a service characteristic descriptor of type
* \ref cy_en_ble_cscs_descr_index_t. Valid value is
* * \ref CY_BLE_CSCS_CCCD.
* \param attrSize: The size of the characteristic descriptor attribute.
* \param attrValue: The pointer to the location where characteristic descriptor value data
* should be stored.
*
* \return
* A return value of type \ref cy_en_ble_api_result_t.
*
* Error Codes | Description
* ------------ | -----------
* CY_BLE_SUCCESS | The request was handled successfully.
* CY_BLE_ERROR_INVALID_PARAMETER | Validation of the input parameter failed.
* CY_BLE_ERROR_GATT_DB_INVALID_ATTR_HANDLE| An optional characteristic is absent.
*
*******************************************************************************/
cy_en_ble_api_result_t Cy_BLE_CSCSS_GetCharacteristicDescriptor(cy_stc_ble_conn_handle_t connHandle,
cy_en_ble_cscs_char_index_t charIndex,
cy_en_ble_cscs_descr_index_t descrIndex,
uint8_t attrSize,
uint8_t *attrValue)
{
cy_en_ble_api_result_t apiResult = CY_BLE_ERROR_INVALID_PARAMETER;
if((CY_BLE_CSCS_CHAR_COUNT > charIndex) && (CY_BLE_CSCS_DESCR_COUNT > descrIndex))
{
if(cy_ble_cscssConfigPtr->attrInfo->charInfo[charIndex].descrHandle[descrIndex] !=
CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE)
{
cy_stc_ble_gatts_db_attr_val_info_t dbAttrValInfo;
dbAttrValInfo.handleValuePair.attrHandle = cy_ble_cscssConfigPtr->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_SUCCESS;
}
}
else
{
apiResult = CY_BLE_ERROR_GATT_DB_INVALID_ATTR_HANDLE;
}
}
return(apiResult);
}
/******************************************************************************
* Function Name: Cy_BLE_CSCSS_WriteEventHandler
***************************************************************************//**
*
* Handles the Write Request event for the Cycling Speed and Cadence service.
*
* \param *eventParam: The pointer to the data that came
* with a Write Request for the
* Cycling Speed and Cadence service.
*
* \return
* Return a value of type cy_en_ble_gatt_err_code_t:
*
* Error Codes | Description
* ------------ | -----------
* CY_BLE_GATT_ERR_NONE | Function terminated successfully.
* CY_BLE_GATT_ERR_INVALID_HANDLE | The handle of a CCCD descriptor is not valid.
* CY_BLE_GATT_ERR_UNLIKELY_ERROR | An Internal Stack error occurred.
* CY_BLE_GATT_ERR_REQUEST_NOT_SUPPORTED | The notification or indication property of a specific Characteristic of CSCS is disabled.
*
******************************************************************************/
static cy_en_ble_gatt_err_code_t Cy_BLE_CSCSS_WriteEventHandler(cy_stc_ble_gatts_write_cmd_req_param_t *eventParam)
{
cy_stc_ble_cscs_char_value_t wrReqParam = { .connHandle = eventParam->connHandle };
cy_ble_gatt_db_attr_handle_t tmpHandle;
cy_en_ble_gatt_err_code_t gattErr = CY_BLE_GATT_ERR_NONE;
uint32_t event = (uint32_t)CY_BLE_EVT_CSCSS_WRITE_CHAR;
uint32_t handleWasFound = 1u;
tmpHandle = eventParam->handleValPair.attrHandle;
if(Cy_BLE_CSCS_ApplCallback != NULL)
{
/* Client Characteristic Configuration descriptor Write Request */
if(tmpHandle == cy_ble_cscssConfigPtr->attrInfo->charInfo[CY_BLE_CSCS_CSC_MEASUREMENT].descrHandle[CY_BLE_CSCS_CCCD])
{
/* Verify that optional notification property is enabled for the Characteristic */
if(CY_BLE_IS_NOTIFICATION_SUPPORTED(cy_ble_cscssConfigPtr->attrInfo->charInfo[CY_BLE_CSCS_CSC_MEASUREMENT].
charHandle))
{
if(CY_BLE_IS_NOTIFICATION_ENABLED_IN_PTR(eventParam->handleValPair.value.val))
{
event = (uint32_t)CY_BLE_EVT_CSCSS_NOTIFICATION_ENABLED;
}
else
{
event = (uint32_t)CY_BLE_EVT_CSCSS_NOTIFICATION_DISABLED;
}
wrReqParam.charIndex = CY_BLE_CSCS_CSC_MEASUREMENT;
/* Value is NULL for descriptors */
wrReqParam.value = NULL;
}
else
{
gattErr = CY_BLE_GATT_ERR_REQUEST_NOT_SUPPORTED;
}
}
else if(tmpHandle == cy_ble_cscssConfigPtr->attrInfo->charInfo[CY_BLE_CSCS_SC_CONTROL_POINT].
descrHandle[CY_BLE_CSCS_CCCD])
{
/* Verify that optional indication property is enabled for the Characteristic */
if(CY_BLE_IS_INDICATION_SUPPORTED(cy_ble_cscssConfigPtr->attrInfo->charInfo[CY_BLE_CSCS_SC_CONTROL_POINT].
charHandle))
{
if(CY_BLE_IS_INDICATION_ENABLED_IN_PTR(eventParam->handleValPair.value.val))
{
event = (uint32_t)CY_BLE_EVT_CSCSS_INDICATION_ENABLED;
}
else
{
event = (uint32_t)CY_BLE_EVT_CSCSS_INDICATION_DISABLED;
}
wrReqParam.charIndex = CY_BLE_CSCS_SC_CONTROL_POINT;
/* Value is NULL for descriptors */
wrReqParam.value = NULL;
}
else
{
gattErr = CY_BLE_GATT_ERR_REQUEST_NOT_SUPPORTED;
}
}
else if(tmpHandle == cy_ble_cscssConfigPtr->attrInfo->charInfo[CY_BLE_CSCS_SC_CONTROL_POINT].charHandle)
{
if(CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE == cy_ble_cscssReqHandle)
{
/* Verify if indication are enabled for CSC Control Point Characteristic */
if(CY_BLE_IS_INDICATION_SUPPORTED(cy_ble_cscssConfigPtr->attrInfo->
charInfo[CY_BLE_CSCS_SC_CONTROL_POINT].charHandle))
{
if(CY_BLE_IS_INDICATION_ENABLED(eventParam->connHandle.attId,
cy_ble_cscssConfigPtr->attrInfo->charInfo[CY_BLE_CSCS_SC_CONTROL_POINT].
descrHandle[CY_BLE_CSCS_CCCD]))
{
event = (uint32_t)CY_BLE_EVT_CSCSS_WRITE_CHAR;
wrReqParam.charIndex = CY_BLE_CSCS_CSC_MEASUREMENT;
wrReqParam.value = &eventParam->handleValPair.value;
}
else
{
/* The peer Client didn't enable indications for the characteristic */
gattErr = CY_BLE_GATTS_ERR_CCCD_IMPROPERLY_CONFIGURED;
}
}
else
{
/* Indication is not supported */
gattErr = CY_BLE_GATT_ERR_REQUEST_NOT_SUPPORTED;
}
}
else
{
gattErr = CY_BLE_GATTS_ERR_PROCEDURE_ALREADY_IN_PROGRESS;
}
}
else
{
/* No valid service handles were found */
handleWasFound = 0u;
}
if((gattErr == CY_BLE_GATT_ERR_NONE) && (handleWasFound != 0u))
{
/* Write value to GATT database */
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_eventHandlerFlag &= (uint8_t) ~CY_BLE_CALLBACK;
Cy_BLE_CSCS_ApplCallback(event, &wrReqParam);
}
}
}
if(CY_BLE_GATT_ERR_NONE != gattErr)
{
/* Indicate that request was handled */
cy_ble_eventHandlerFlag &= (uint8_t) ~CY_BLE_CALLBACK;
}
return(gattErr);
}
/******************************************************************************
* Function Name: Cy_BLE_CSCSS_ConfirmationEventHandler
***************************************************************************//**
*
* Handles the Value Confirmation request event from the BLE Stack.
*
* \param eventParam: Pointer to a structure of type 'cy_stc_ble_conn_handle_t'.
*
******************************************************************************/
static void Cy_BLE_CSCSS_ConfirmationEventHandler(const cy_stc_ble_conn_handle_t *eventParam)
{
if((Cy_BLE_CSCS_ApplCallback != NULL) && (cy_ble_cscssReqHandle != CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE))
{
if(cy_ble_cscssReqHandle == cy_ble_cscssConfigPtr->attrInfo->charInfo[CY_BLE_CSCS_SC_CONTROL_POINT].charHandle)
{
cy_stc_ble_cscs_char_value_t locCharValue;
locCharValue.connHandle = *eventParam;
locCharValue.charIndex = CY_BLE_CSCS_SC_CONTROL_POINT;
locCharValue.value = NULL;
cy_ble_eventHandlerFlag &= (uint8_t) ~CY_BLE_CALLBACK;
cy_ble_cscssReqHandle = CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE;
Cy_BLE_CSCS_ApplCallback((uint32_t)CY_BLE_EVT_CSCSS_INDICATION_CONFIRMED, &locCharValue);
}
}
}
/*******************************************************************************
* Function Name: Cy_BLE_CSCSS_SendNotification
****************************************************************************//**
*
* Sends notification with a characteristic value, which is specified by
* charIndex, of the Cycling Speed and Cadence service to the client device.
*
* On enabling notification successfully for a service characteristic it sends out a
* 'Handle Value Notification' which results in \ref CY_BLE_EVT_CSCSC_NOTIFICATION event
* at the GATT Client's end.
*
* \param connHandle: The connection handle.
* \param charIndex: The index of a service characteristic of
* type \ref cy_en_ble_cscs_char_index_t. Valid value is
* * \ref CY_BLE_CSCS_CSC_MEASUREMENT.
* \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_CSCSS_SendNotification(cy_stc_ble_conn_handle_t connHandle,
cy_en_ble_cscs_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_CSCS_CSC_MEASUREMENT)
{
/* 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(!CY_BLE_IS_NOTIFICATION_ENABLED(connHandle.attId,
cy_ble_cscssConfigPtr->attrInfo->charInfo[charIndex].
descrHandle[CY_BLE_CSCS_CCCD]))
{
apiResult = CY_BLE_ERROR_NTF_DISABLED;
}
else
{
/* Fill all fields of Write Request structure ... */
cy_stc_ble_gatts_handle_value_ntf_t ntfReqParam;
ntfReqParam.handleValPair.attrHandle = cy_ble_cscssConfigPtr->attrInfo->charInfo[charIndex].charHandle;
ntfReqParam.handleValPair.value.val = attrValue;
ntfReqParam.handleValPair.value.len = attrSize;
ntfReqParam.connHandle = connHandle;
/* Send notification to the client using previously filled structure */
apiResult = Cy_BLE_GATTS_Notification(&ntfReqParam);
}
}
return(apiResult);
}
/*******************************************************************************
* Function Name: Cy_BLE_CSCSS_SendIndication
****************************************************************************//**
*
* Sends indication with a characteristic value, which is specified by
* charIndex, of the Cycling Speed and Cadence service to the client device.
*
* On enabling indication successfully it sends out a 'Handle Value Indication' which
* results in \ref CY_BLE_EVT_CSCSC_INDICATION or \ref 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 a service characteristic of
* type \ref cy_en_ble_cscs_char_index_t.
* \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 CSCS service-specific callback is registered
* with \ref Cy_BLE_CSCS_RegisterAttrCallback():
* * #CY_BLE_EVT_CSCSS_INDICATION_CONFIRMED - In case if the indication is
* successfully delivered to the peer device.
* .
* Otherwise, if the CSCS service-specific callback is not registered:
* * #CY_BLE_EVT_GATTS_HANDLE_VALUE_CNF - In case if the indication is
* successfully delivered to the peer device.
*
*******************************************************************************/
cy_en_ble_api_result_t Cy_BLE_CSCSS_SendIndication(cy_stc_ble_conn_handle_t connHandle,
cy_en_ble_cscs_char_index_t charIndex,
uint8_t attrSize,
uint8_t *attrValue)
{
/* Store new data in database */
cy_en_ble_api_result_t apiResult = CY_BLE_SUCCESS;
if(charIndex == CY_BLE_CSCS_SC_CONTROL_POINT)
{
/* 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_cscssConfigPtr->attrInfo->charInfo[charIndex].
descrHandle[CY_BLE_CSCS_CCCD]))
{
apiResult = CY_BLE_ERROR_IND_DISABLED;
}
else
{
if(cy_ble_cscssConfigPtr->attrInfo->charInfo[charIndex].charHandle != CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE)
{
/* Fill all fields of Write Request structure ... */
cy_stc_ble_gatts_handle_value_ind_t indReqParam;
indReqParam.handleValPair.attrHandle = cy_ble_cscssConfigPtr->attrInfo->charInfo[charIndex].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_cscssReqHandle = indReqParam.handleValPair.attrHandle;
}
}
else
{
apiResult = CY_BLE_ERROR_GATT_DB_INVALID_ATTR_HANDLE;
}
}
}
return(apiResult);
}
/*******************************************************************************
* Function Name: Cy_BLE_CSCSC_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_CSCSC_DiscoverCharacteristicsEventHandler(cy_stc_ble_disc_char_info_t *discCharInfo)
{
/* CSCS characteristics UUIDs */
static const cy_ble_uuid16_t cy_ble_cscscCharUuid[CY_BLE_CSCS_CHAR_COUNT] =
{
CY_BLE_UUID_CHAR_CSC_MSRMT,
CY_BLE_UUID_CHAR_CSC_FEATURE,
CY_BLE_UUID_CHAR_SENSOR_LOCATION,
CY_BLE_UUID_CHAR_SC_CONTROL_POINT
};
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 cscsDiscIdx = cy_ble_cscscConfigPtr->serviceDiscIdx;
uint32_t i;
if((discCharInfo->uuidFormat == CY_BLE_GATT_16_BIT_UUID_FORMAT) &&
(cy_ble_configPtr->context->discovery[discIdx].servCount == cscsDiscIdx))
{
/* Get pointer (with offset) to CSCS client structure with attribute handles */
cy_stc_ble_cscsc_t *cscscPtr = (cy_stc_ble_cscsc_t *)&cy_ble_cscscConfigPtr->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 = (uint32_t)CY_BLE_CSCS_CSC_MEASUREMENT; i < (uint32_t)CY_BLE_CSCS_CHAR_COUNT; i++)
{
if(cy_ble_cscscCharUuid[i] == discCharInfo->uuid.uuid16)
{
if(cscscPtr->characteristics[i].charInfo.valueHandle == CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE)
{
cscscPtr->characteristics[i].charInfo.valueHandle = discCharInfo->valueHandle;
cscscPtr->characteristics[i].charInfo.properties = discCharInfo->properties;
lastEndHandle[discIdx] = &cscscPtr->characteristics[i].endHandle;
}
else
{
Cy_BLE_ApplCallback((uint32_t)CY_BLE_EVT_GATTC_CHAR_DUPLICATION, &discCharInfo);
}
}
}
/* Initially characteristic endHandle equals to the service endHandle.
* Characteristic endHandle will be updated to 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_CSCSC_DiscoverCharDescriptorsEventHandler
****************************************************************************//**
*
* This function is called on receiving a #CY_BLE_EVT_GATTC_FIND_INFO_RSP event.
* This event is generated when a server successfully sends the data for
* #CY_BLE_GATT_FIND_INFO_REQ. Based on the service UUID, an appropriate data
* structure is populated to the service with a service callback.
*
* \param discDescrInfo: The pointer to descriptor information structure.
*
*******************************************************************************/
static void Cy_BLE_CSCSC_DiscoverCharDescriptorsEventHandler(cy_stc_ble_disc_descr_info_t *discDescrInfo)
{
uint32_t notSupportedDescr = 0u;
uint32_t discIdx = Cy_BLE_GetDiscoveryIdx(discDescrInfo->connHandle);
uint32_t cscsDiscIdx = cy_ble_cscscConfigPtr->serviceDiscIdx;
uint32_t descIdx;
if(cy_ble_configPtr->context->discovery[discIdx].servCount == cscsDiscIdx)
{
/* Get pointer (with offset) to CSCS client structure with attribute handles */
cy_stc_ble_cscsc_t *cscscPtr = (cy_stc_ble_cscsc_t *)&cy_ble_cscscConfigPtr->attrInfo[discIdx];
switch(discDescrInfo->uuid.uuid16)
{
case CY_BLE_UUID_CHAR_CLIENT_CONFIG:
descIdx = (uint32_t)CY_BLE_CSCS_CCCD;
break;
default:
/* Not supported descriptor */
notSupportedDescr = 1u;
break;
}
if(notSupportedDescr == 0u)
{
if(cscscPtr->characteristics[cy_ble_configPtr->context->discovery[discIdx].charCount].descriptors[descIdx] ==
CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE)
{
cscscPtr->characteristics[cy_ble_configPtr->context->discovery[discIdx].charCount].descriptors[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_CSCSC_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_CSCSC_GetCharRange(cy_stc_ble_disc_range_info_t *charRangeInfo)
{
uint32_t discIdx = Cy_BLE_GetDiscoveryIdx(charRangeInfo->connHandle);
uint32_t cscsDiscIdx = cy_ble_cscscConfigPtr->serviceDiscIdx;
uint32_t exitFlag = 0u;
if(cy_ble_configPtr->context->discovery[discIdx].servCount == cscsDiscIdx)
{
/* Get pointer (with offset) to CSCS client structure with attribute handles */
cy_stc_ble_cscsc_t *cscscPtr = (cy_stc_ble_cscsc_t *)&cy_ble_cscscConfigPtr->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_CSCS_CHAR_COUNT) && (exitFlag == 0u))
{
uint32_t charIdx = cy_ble_configPtr->context->discovery[discIdx].charCount;
if((cscscPtr->characteristics[charIdx].endHandle - cscscPtr->characteristics[charIdx].
charInfo.valueHandle) != 0u)
{
/* Read characteristic range */
charRangeInfo->range.startHandle = cscscPtr->characteristics[charIdx].charInfo.valueHandle + 1u;
charRangeInfo->range.endHandle = cscscPtr->characteristics[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_CSCSC_NotificationEventHandler
****************************************************************************//**
*
* Handles the Notification event for the Cycling Speed and Cadence service.
*
* \param eventParam: The pointer to the cy_stc_ble_gattc_handle_value_ntf_param_t
* data structure specified by the event.
*
*******************************************************************************/
static void Cy_BLE_CSCSC_NotificationEventHandler(cy_stc_ble_gattc_handle_value_ntf_param_t *eventParam)
{
uint32_t discIdx = Cy_BLE_GetDiscoveryIdx(eventParam->connHandle);
if((discIdx < cy_ble_configPtr->params->maxClientCount) && (Cy_BLE_CSCS_ApplCallback != NULL))
{
/* Get pointer (with offset) to CSCS client structure with attribute handles */
cy_stc_ble_cscsc_t *cscscPtr = (cy_stc_ble_cscsc_t *)&cy_ble_cscscConfigPtr->attrInfo[discIdx];
if(cscscPtr->characteristics[CY_BLE_CSCS_CSC_MEASUREMENT].charInfo.valueHandle ==
eventParam->handleValPair.attrHandle)
{
cy_stc_ble_cscs_char_value_t ntfParam;
ntfParam.charIndex = CY_BLE_CSCS_CSC_MEASUREMENT;
ntfParam.connHandle = eventParam->connHandle;
ntfParam.value = &eventParam->handleValPair.value;
Cy_BLE_CSCS_ApplCallback((uint32_t)CY_BLE_EVT_CSCSC_NOTIFICATION, (void*)&ntfParam);
cy_ble_eventHandlerFlag &= (uint8_t) ~CY_BLE_CALLBACK;
}
}
}
/*******************************************************************************
* Function Name: Cy_BLE_CSCSC_IndicationEventHandler
****************************************************************************//**
*
* Handles the Indication event for the Cycling Speed and Cadence service.
*
* \param eventParam: The pointer to the cy_stc_ble_gattc_handle_value_ntf_param_t
* data structure specified by the event.
*
*******************************************************************************/
static void Cy_BLE_CSCSC_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_CSCS_ApplCallback != NULL))
{
/* Get pointer (with offset) to CSCS client structure with attribute handles */
cy_stc_ble_cscsc_t *cscscPtr = (cy_stc_ble_cscsc_t *)&cy_ble_cscscConfigPtr->attrInfo[discIdx];
if(cscscPtr->characteristics[CY_BLE_CSCS_SC_CONTROL_POINT].charInfo.valueHandle ==
eventParam->handleValPair.attrHandle)
{
cy_stc_ble_cscs_char_value_t ntfParam;
ntfParam.charIndex = CY_BLE_CSCS_SC_CONTROL_POINT;
ntfParam.connHandle = eventParam->connHandle;
ntfParam.value = &eventParam->handleValPair.value;
Cy_BLE_CSCS_ApplCallback((uint32_t)CY_BLE_EVT_CSCSC_INDICATION, (void*)&ntfParam);
cy_ble_eventHandlerFlag &= (uint8_t) ~CY_BLE_CALLBACK;
}
}
}
/*******************************************************************************
* Function Name: Cy_BLE_CSCSC_ReadResponseEventHandler
****************************************************************************//**
*
* Handles the Read Response event for the Cycling Speed and Cadence service.
*
* \param eventParam: The pointer to the data that came with a read response for CSCS.
*
*******************************************************************************/