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cy_ble_plxs.c
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cy_ble_plxs.c
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/***************************************************************************//**
* \file cy_ble_plxs.c
* \version 3.60
*
* \brief
* This file contains the source code for the Pulse Oximeter service.
*
********************************************************************************
* \copyright
* Copyright 2017-2021, Cypress Semiconductor Corporation. All rights reserved.
* You may use this file only in accordance with the license, terms, conditions,
* disclaimers, and limitations in the end user license agreement accompanying
* the software package with which this file was provided.
*******************************************************************************/
#include "cy_ble_event_handler.h"
#if defined(CY_IP_MXBLESS)
#if CY_BLE_LIB_HOST_CORE
/*******************************************************************************
* Internal Defines / Macro Functions
*******************************************************************************/
#define CY_BLE_PLXSS_IS_PROCEDURE_IN_PROGRESS ((cy_ble_plxssFlag & CY_BLE_PLXS_FLAG_PROCESS) != 0u)
/*******************************************************************************
* Private Function Prototypes
*******************************************************************************/
static cy_en_ble_gatt_err_code_t Cy_BLE_PLXS_EventHandler(uint32_t eventCode, void *eventParam);
static cy_en_ble_gatt_err_code_t Cy_BLE_PLXSS_EventHandler(uint32_t eventCode, void *eventParam);
static cy_en_ble_gatt_err_code_t Cy_BLE_PLXSC_EventHandler(uint32_t eventCode, void *eventParam);
static void Cy_BLE_PLXSS_ConfirmationEventHandler(const cy_stc_ble_conn_handle_t *eventParam);
static cy_en_ble_gatt_err_code_t Cy_BLE_PLXSS_WriteEventHandler(cy_stc_ble_gatts_write_cmd_req_param_t *eventParam);
static void Cy_BLE_PLXSC_DiscoverCharacteristicsEventHandler(cy_stc_ble_disc_char_info_t *discCharInfo);
static void Cy_BLE_PLXSC_DiscoverCharDescriptorsEventHandler(cy_stc_ble_disc_descr_info_t *discDescrInfo);
static void Cy_BLE_PLXSC_GetCharRange(cy_stc_ble_disc_range_info_t *charRangeInfo);
static void Cy_BLE_PLXSC_NotificationEventHandler(cy_stc_ble_gattc_handle_value_ntf_param_t *eventParam);
static void Cy_BLE_PLXSC_IndicationEventHandler(cy_stc_ble_gattc_handle_value_ind_param_t *eventParam);
static void Cy_BLE_PLXSC_ReadResponseEventHandler(cy_stc_ble_gattc_read_rsp_param_t *eventParam);
static void Cy_BLE_PLXSC_WriteResponseEventHandler(const cy_stc_ble_conn_handle_t *eventParam);
static void Cy_BLE_PLXSC_ErrorResponseEventHandler(const cy_stc_ble_gatt_err_param_t *eventParam);
static void Cy_BLE_PLXSC_TimeOutEventHandler(const cy_stc_ble_timeout_param_t *eventParam);
/*******************************************************************************
* Global Variables
*******************************************************************************/
/* The pointers to the callback functions */
static cy_ble_callback_t Cy_BLE_PLXS_ApplCallback = NULL;
static cy_ble_event_handler_cb_t Cy_BLE_PLXSC_EventHandlerCallback = NULL;
static cy_ble_event_handler_cb_t Cy_BLE_PLXSS_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_plxssReqHandle;
/* The internal storage for the last request handle to check response */
static cy_ble_gatt_db_attr_handle_t cy_ble_plxscReqHandle[CY_BLE_MAX_CONNECTION_INSTANCES];
/* The pointer to a global BLE PLXS server config structure */
const cy_stc_ble_plxss_config_t *cy_ble_plxssConfigPtr = NULL;
/* The pointer to a global BLE PLXS client config structure */
const cy_stc_ble_plxsc_config_t *cy_ble_plxscConfigPtr = NULL;
/* PLXS Server flags */
uint32_t cy_ble_plxssFlag;
/* RACP Procedure Timeout TIMER setting */
static cy_stc_ble_timer_info_t cy_ble_plxscRacpTimeout[CY_BLE_MAX_CONNECTION_INSTANCES];
/* PLXS Client flags */
static uint32_t cy_ble_plxscFlag[CY_BLE_MAX_CONNECTION_INSTANCES];
/******************************************************************************
* Function Name: Cy_BLE_PLXSS_Init
***************************************************************************//**
*
* This function initializes server of the Pulse Oximeter service.
*
* \param config: Configuration structure for the PLXS.
*
* \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_PLXSS_Init(const cy_stc_ble_plxss_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_plxssConfigPtr = config;
/* Registers event handler for the PLXS */
apiResult = Cy_BLE_RegisterServiceEventHandler(&Cy_BLE_PLXS_EventHandler);
/* Registers a pointer to server event handler function */
Cy_BLE_PLXSS_EventHandlerCallback = &Cy_BLE_PLXSS_EventHandler;
cy_ble_plxssFlag = 0u;
cy_ble_plxssReqHandle = CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE;
}
return(apiResult);
}
/******************************************************************************
* Function Name: Cy_BLE_PLXSC_Init
***************************************************************************//**
*
* This function initializes client of the Pulse Oximeter service.
*
* \param config: Configuration structure for the PLXS.
*
* \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_PLXSC_Init(const cy_stc_ble_plxsc_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_plxscConfigPtr = config;
/* Registers event handler for the PLXS */
apiResult = Cy_BLE_RegisterServiceEventHandler(&Cy_BLE_PLXS_EventHandler);
/* Registers a pointer to client event handler function */
Cy_BLE_PLXSC_EventHandlerCallback = &Cy_BLE_PLXSC_EventHandler;
for(idx = 0u; idx < cy_ble_configPtr->params->maxClientCount; idx++)
{
uint32 servCnt = cy_ble_configPtr->context->discServiCount;
uint32 plxsServIdx = cy_ble_plxscConfigPtr->serviceDiscIdx;
if(cy_ble_configPtr->context->serverInfo[(idx * servCnt) + plxsServIdx].range.startHandle ==
CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE)
{
/* Get pointer to PLXS client structure */
cy_stc_ble_plxsc_t *plxscPtr = (cy_stc_ble_plxsc_t *)&cy_ble_plxscConfigPtr->attrInfo[idx];
/* Clean client structure */
(void)memset(plxscPtr, 0, sizeof(cy_stc_ble_plxsc_t));
/* Initialize uuid */
cy_ble_configPtr->context->serverInfo[(idx * servCnt) + plxsServIdx].uuid =
CY_BLE_UUID_PULSE_OXIMETER_SERVICE;
}
cy_ble_plxscReqHandle[idx] = CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE;
cy_ble_plxscRacpTimeout[idx].timeout = CY_BLE_PLXS_RACP_PROCEDURE_TIMEOUT;
cy_ble_plxscFlag[idx] = 0u;
}
}
return(apiResult);
}
/******************************************************************************
* Function Name: Cy_BLE_PLXS_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 PLXS 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_PLXSS_NOTIFICATION_ENABLED).
* * eventParam: Contains the parameters corresponding to the
* current event; (e.g. pointer to \ref cy_stc_ble_plxs_char_value_t
* structure that contains details of the characteristic
* for which the notification enabled event was triggered).
*
******************************************************************************/
void Cy_BLE_PLXS_RegisterAttrCallback(cy_ble_callback_t callbackFunc)
{
Cy_BLE_PLXS_ApplCallback = callbackFunc;
}
/******************************************************************************
* Function Name: Cy_BLE_PLXSS_SetCharacteristicValue
***************************************************************************//**
*
* Sets a characteristic value of the service, which is identified by charIndex.
*
* \param charIndex: The index of a service characteristic.
* \param attrSize: The size of the characteristic value attribute.
* \param *attrValue: The pointer to the characteristic value data that should be
* stored in the GATT database.
*
* \return
* A return value of type \ref cy_en_ble_api_result_t.
*
* Error Codes | Description
* ------------ | -----------
* CY_BLE_SUCCESS | The request was handled successfully.
* CY_BLE_ERROR_INVALID_PARAMETER | Validation of the input parameter failed.
* CY_BLE_ERROR_GATT_DB_INVALID_ATTR_HANDLE | Optional characteristic is absent.
*
******************************************************************************/
cy_en_ble_api_result_t Cy_BLE_PLXSS_SetCharacteristicValue(cy_en_ble_plxs_char_index_t charIndex,
uint8_t attrSize,
uint8_t *attrValue)
{
cy_en_ble_api_result_t apiResult;
/* Check the parameters */
if(charIndex >= CY_BLE_PLXS_CHAR_COUNT)
{
apiResult = CY_BLE_ERROR_INVALID_PARAMETER;
}
else if(cy_ble_plxssConfigPtr->attrInfo->charInfo[charIndex].charHandle == CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE)
{
apiResult = CY_BLE_ERROR_GATT_DB_INVALID_ATTR_HANDLE;
}
else
{
/* Store characteristic value into GATT database */
cy_stc_ble_gatts_db_attr_val_info_t dbAttrValInfo;
dbAttrValInfo.connHandle.bdHandle = 0u;
dbAttrValInfo.connHandle.attId = 0u;
dbAttrValInfo.handleValuePair.attrHandle = cy_ble_plxssConfigPtr->attrInfo->charInfo[charIndex].charHandle;
dbAttrValInfo.handleValuePair.value.len = attrSize;
dbAttrValInfo.handleValuePair.value.val = attrValue;
dbAttrValInfo.offset = 0u;
dbAttrValInfo.flags = CY_BLE_GATT_DB_LOCALLY_INITIATED;
if(Cy_BLE_GATTS_WriteAttributeValueCCCD(&dbAttrValInfo) != CY_BLE_GATT_ERR_NONE)
{
apiResult = CY_BLE_ERROR_INVALID_PARAMETER;
}
else
{
apiResult = CY_BLE_SUCCESS;
}
}
return(apiResult);
}
/******************************************************************************
* Function Name: Cy_BLE_PLXSS_SetCharacteristicDescriptor
***************************************************************************//**
*
* Sets a characteristic descriptor of a specified characteristic of the service.
*
* \param connHandle: The connection handle which consist of the device ID and ATT
* connection ID.
* \param charIndex: The index of a service characteristic of type
* cy_en_ble_plxs_char_index_t.
* \param descrIndex: The index of a service characteristic descriptor of type
* cy_en_ble_plxs_descr_index_t.
* \param attrSize: The size of the characteristic descriptor attribute.
* \param attrValue: The pointer to the descriptor value data that should
* be stored to the GATT database.
*
* \return
* A return value is 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_PLXSS_SetCharacteristicDescriptor(cy_stc_ble_conn_handle_t connHandle,
cy_en_ble_plxs_char_index_t charIndex,
cy_en_ble_plxs_descr_index_t descrIndex,
uint8_t attrSize,
uint8_t *attrValue)
{
cy_en_ble_api_result_t apiResult = CY_BLE_SUCCESS;
if((charIndex >= CY_BLE_PLXS_CHAR_COUNT) || (descrIndex >= CY_BLE_PLXS_DESCR_COUNT))
{
apiResult = CY_BLE_ERROR_INVALID_PARAMETER;
}
else
{
cy_stc_ble_gatts_db_attr_val_info_t dbAttrValInfo;
dbAttrValInfo.handleValuePair.attrHandle = cy_ble_plxssConfigPtr->attrInfo->charInfo[charIndex].descrHandle[descrIndex];
dbAttrValInfo.handleValuePair.value.len = attrSize;
dbAttrValInfo.handleValuePair.value.val = attrValue;
dbAttrValInfo.connHandle = connHandle;
dbAttrValInfo.offset = 0u;
dbAttrValInfo.flags = CY_BLE_GATT_DB_LOCALLY_INITIATED;
if(Cy_BLE_GATTS_WriteAttributeValueCCCD(&dbAttrValInfo) != CY_BLE_GATT_ERR_NONE)
{
apiResult = CY_BLE_ERROR_INVALID_PARAMETER;
}
}
return(apiResult);
}
/******************************************************************************
* Function Name: Cy_BLE_PLXSS_GetCharacteristicValue
***************************************************************************//**
*
* Gets a characteristic value of the service, which is identified by charIndex.
*
* \param charIndex: The index of a service characteristic.
* \param attrSize: The size of the characteristic value attribute.
* \param *attrValue: 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_BLE_ERROR_GATT_DB_INVALID_ATTR_HANDLE | Optional characteristic is absent.
*
******************************************************************************/
cy_en_ble_api_result_t Cy_BLE_PLXSS_GetCharacteristicValue(cy_en_ble_plxs_char_index_t charIndex,
uint8_t attrSize,
uint8_t *attrValue)
{
cy_en_ble_api_result_t apiResult;
/* Check the parameters */
if(charIndex >= CY_BLE_PLXS_CHAR_COUNT)
{
apiResult = CY_BLE_ERROR_INVALID_PARAMETER;
}
else if(cy_ble_plxssConfigPtr->attrInfo->charInfo[charIndex].charHandle == CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE)
{
apiResult = CY_BLE_ERROR_GATT_DB_INVALID_ATTR_HANDLE;
}
else
{
/* Get characteristic value from GATT database */
cy_stc_ble_gatts_db_attr_val_info_t dbAttrValInfo;
dbAttrValInfo.connHandle.bdHandle = 0u;
dbAttrValInfo.connHandle.attId = 0u;
dbAttrValInfo.handleValuePair.attrHandle = cy_ble_plxssConfigPtr->attrInfo->charInfo[charIndex].charHandle;
dbAttrValInfo.handleValuePair.value.len = attrSize;
dbAttrValInfo.handleValuePair.value.val = attrValue;
dbAttrValInfo.offset = 0u;
dbAttrValInfo.flags = CY_BLE_GATT_DB_LOCALLY_INITIATED;
if(Cy_BLE_GATTS_ReadAttributeValueCCCD(&dbAttrValInfo) != CY_BLE_GATT_ERR_NONE)
{
apiResult = CY_BLE_ERROR_INVALID_PARAMETER;
}
else
{
apiResult = CY_BLE_SUCCESS;
}
}
return(apiResult);
}
/******************************************************************************
* Function Name: Cy_BLE_PLXSS_GetCharacteristicDescriptor
***************************************************************************//**
*
* Gets the characteristic descriptor of the specified characteristic.
*
* \param connHandle: The connection handle which consist of the device ID and ATT
* connection ID.
* \param charIndex: The index of the characteristic.
* \param descrIndex: The index of the descriptor.
* \param attrSize: The size of the descriptor value attribute.
* \param *attrValue: Pointer to the location where the 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 | Optional characteristic is absent.
*
******************************************************************************/
cy_en_ble_api_result_t Cy_BLE_PLXSS_GetCharacteristicDescriptor(cy_stc_ble_conn_handle_t connHandle,
cy_en_ble_plxs_char_index_t charIndex,
cy_en_ble_plxs_descr_index_t descrIndex,
uint8_t attrSize,
uint8_t *attrValue)
{
cy_en_ble_api_result_t apiResult;
/* Check the parameters */
if((charIndex >= CY_BLE_PLXS_CHAR_COUNT) || (descrIndex >= CY_BLE_PLXS_DESCR_COUNT))
{
apiResult = CY_BLE_ERROR_INVALID_PARAMETER;
}
else if(cy_ble_plxssConfigPtr->attrInfo->charInfo[charIndex].descrHandle[CY_BLE_PLXS_CCCD] ==
CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE)
{
apiResult = CY_BLE_ERROR_GATT_DB_INVALID_ATTR_HANDLE;
}
else
{
/* Get data from database */
cy_stc_ble_gatts_db_attr_val_info_t dbAttrValInfo;
dbAttrValInfo.handleValuePair.attrHandle = cy_ble_plxssConfigPtr->attrInfo->charInfo[charIndex].descrHandle[CY_BLE_PLXS_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;
if(Cy_BLE_GATTS_ReadAttributeValueCCCD(&dbAttrValInfo) != CY_BLE_GATT_ERR_NONE)
{
apiResult = CY_BLE_ERROR_INVALID_PARAMETER;
}
else
{
apiResult = CY_BLE_SUCCESS;
}
}
return(apiResult);
}
/******************************************************************************
* Function Name: Cy_BLE_PLXSS_SendNotification
***************************************************************************//**
*
* Sends a notification of the specified characteristic to the client device,
* as defined by the charIndex value.
*
* On enabling notification successfully for a service characteristic it sends out a
* 'Handle Value Notification' which results in #CY_BLE_EVT_PLXSC_NOTIFICATION event
* at the GATT Client's end.
*
* \param connHandle: The connection handle which consist of the device ID and ATT
* connection ID.
* \param charIndex: The index of the service characteristic.
* \param attrSize: The size of the characteristic value attribute.
* \param *attrValue: Pointer to the Characteristic value data that should be sent
* to 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_GATT_DB_INVALID_ATTR_HANDLE | Optional characteristic is absent.
* CY_BLE_ERROR_INVALID_OPERATION | Operation is invalid for this characteristic.
* 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_PLXSS_SendNotification(cy_stc_ble_conn_handle_t connHandle,
cy_en_ble_plxs_char_index_t charIndex,
uint8_t attrSize,
uint8_t *attrValue)
{
cy_en_ble_api_result_t apiResult;
/* Send Notification if it is enabled and connected */
if(Cy_BLE_GetConnectionState(connHandle) < CY_BLE_CONN_STATE_CONNECTED)
{
apiResult = CY_BLE_ERROR_INVALID_STATE;
}
else if(charIndex >= CY_BLE_PLXS_CHAR_COUNT)
{
apiResult = CY_BLE_ERROR_INVALID_PARAMETER;
}
else if(cy_ble_plxssConfigPtr->attrInfo->charInfo[charIndex].charHandle == CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE)
{
apiResult = CY_BLE_ERROR_GATT_DB_INVALID_ATTR_HANDLE;
}
else if(cy_ble_plxssConfigPtr->attrInfo->charInfo[charIndex].descrHandle[CY_BLE_PLXS_CCCD] ==
CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE)
{
apiResult = CY_BLE_ERROR_GATT_DB_INVALID_ATTR_HANDLE;
}
else if(!CY_BLE_IS_NOTIFICATION_ENABLED(connHandle.attId, cy_ble_plxssConfigPtr->attrInfo->charInfo[charIndex].
descrHandle[CY_BLE_PLXS_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_plxssConfigPtr->attrInfo->charInfo[charIndex].charHandle;
ntfReqParam.handleValPair.value.val = attrValue;
ntfReqParam.handleValPair.value.len = attrSize;
ntfReqParam.connHandle = connHandle;
/* Send notification to client using previously filled structure */
apiResult = Cy_BLE_GATTS_Notification(&ntfReqParam);
}
return(apiResult);
}
/******************************************************************************
* Function Name: Cy_BLE_PLXSS_SendIndication
***************************************************************************//**
*
* Sends an indication of the specified characteristic to the client device, as
* defined by the charIndex value.
*
* On enabling indication successfully it sends out a 'Handle Value Indication' which
* results in #CY_BLE_EVT_PLXSC_INDICATION or #CY_BLE_EVT_GATTC_HANDLE_VALUE_IND (if
* service-specific callback function is not registered) event at the GATT Client's end.
*
* \param connHandle: The connection handle which consist of the device ID and ATT
* connection ID.
* \param charIndex: The index of the service characteristic.
* \param attrSize: The size of the characteristic value attribute.
* \param *attrValue: Pointer to the Characteristic value data that should be sent
* to 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_GATT_DB_INVALID_ATTR_HANDLE | Optional characteristic is absent.
* CY_BLE_ERROR_INVALID_OPERATION | Operation is invalid for this characteristic.
* 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 PLXS service-specific callback is registered
* (with \ref Cy_BLE_PLXS_RegisterAttrCallback):
* * #CY_BLE_EVT_PLXSS_INDICATION_CONFIRMED - In case if the indication is
* successfully delivered to the peer device.
* .
* Otherwise (if the PLXS 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_PLXSS_SendIndication(cy_stc_ble_conn_handle_t connHandle,
cy_en_ble_plxs_char_index_t charIndex,
uint8_t attrSize,
uint8_t *attrValue)
{
cy_en_ble_api_result_t apiResult;
/* Send Indication if it is enabled and connected */
if(Cy_BLE_GetConnectionState(connHandle) < CY_BLE_CONN_STATE_CONNECTED)
{
apiResult = CY_BLE_ERROR_INVALID_STATE;
}
else if(charIndex >= CY_BLE_PLXS_CHAR_COUNT)
{
apiResult = CY_BLE_ERROR_INVALID_PARAMETER;
}
else if(cy_ble_plxssConfigPtr->attrInfo->charInfo[charIndex].charHandle == CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE)
{
apiResult = CY_BLE_ERROR_GATT_DB_INVALID_ATTR_HANDLE;
}
else if(cy_ble_plxssConfigPtr->attrInfo->charInfo[charIndex].descrHandle[CY_BLE_PLXS_CCCD] ==
CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE)
{
apiResult = CY_BLE_ERROR_GATT_DB_INVALID_ATTR_HANDLE;
}
else if(!CY_BLE_IS_INDICATION_ENABLED(connHandle.attId, cy_ble_plxssConfigPtr->attrInfo->charInfo[charIndex].
descrHandle[CY_BLE_PLXS_CCCD]))
{
apiResult = CY_BLE_ERROR_IND_DISABLED;
}
else
{
/* Fill all fields of Write Request structure ... */
cy_stc_ble_gatts_handle_value_ind_t indParam;
indParam.handleValPair.attrHandle = cy_ble_plxssConfigPtr->attrInfo->charInfo[charIndex].charHandle;
indParam.handleValPair.value.val = attrValue;
indParam.handleValPair.value.len = attrSize;
indParam.connHandle = connHandle;
/* Send notification to client using previously filled structure */
apiResult = Cy_BLE_GATTS_Indication(&indParam);
if(apiResult == CY_BLE_SUCCESS)
{
/* Save handle to support service-specific value confirmation response from client */
cy_ble_plxssReqHandle = indParam.handleValPair.attrHandle;
}
}
return(apiResult);
}
/******************************************************************************
* Function Name: Cy_BLE_PLXSS_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_PLXSS_ConfirmationEventHandler(const cy_stc_ble_conn_handle_t *eventParam)
{
cy_stc_ble_plxs_char_value_t locCharIndex;
locCharIndex.connHandle = *eventParam;
locCharIndex.value = NULL;
if(Cy_BLE_PLXS_ApplCallback != NULL)
{
for(locCharIndex.charIndex = CY_BLE_PLXS_SCMT; locCharIndex.charIndex < CY_BLE_PLXS_CHAR_COUNT;
locCharIndex.charIndex++)
{
if(cy_ble_plxssConfigPtr->attrInfo->charInfo[locCharIndex.charIndex].charHandle == cy_ble_plxssReqHandle)
{
cy_ble_plxssReqHandle = CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE;
/* We have finish of RACP procedure, so reset flag CY_BLE_PLXS_FLAG_PROCESS */
if(locCharIndex.charIndex == CY_BLE_PLXS_RACP)
{
cy_ble_plxssFlag &= (uint8_t) ~CY_BLE_PLXS_FLAG_PROCESS;
}
cy_ble_eventHandlerFlag &= (uint8_t) ~CY_BLE_CALLBACK;
Cy_BLE_PLXS_ApplCallback((uint32_t)CY_BLE_EVT_PLXSS_INDICATION_CONFIRMED, &locCharIndex);
}
}
}
}
/******************************************************************************
* Function Name: Cy_BLE_PLXSS_WriteEventHandler
***************************************************************************//**
*
* Handles the Write Request event.
*
* \param *eventParam: The pointer to the data structure specified by the event.
*
* \return
* cy_en_ble_gatt_err_code_t - A function return state if it succeeded
* (CY_BLE_GATT_ERR_NONE) or failed with error codes:
* * CY_BLE_GATTS_ERR_PROCEDURE_ALREADY_IN_PROGRESS
* * CY_BLE_GATTS_ERR_CCCD_IMPROPERLY_CONFIGURED
*
******************************************************************************/
static cy_en_ble_gatt_err_code_t Cy_BLE_PLXSS_WriteEventHandler(cy_stc_ble_gatts_write_cmd_req_param_t *eventParam)
{
cy_en_ble_gatt_err_code_t gattErr = CY_BLE_GATT_ERR_NONE;
cy_stc_ble_plxs_char_value_t locCharValue;
locCharValue.connHandle = eventParam->connHandle;
if(Cy_BLE_PLXS_ApplCallback != NULL)
{
if(cy_ble_plxssConfigPtr->attrInfo->charInfo[CY_BLE_PLXS_RACP].charHandle == eventParam->handleValPair.attrHandle)
{
if(CY_BLE_PLXSS_IS_PROCEDURE_IN_PROGRESS && (eventParam->handleValPair.value.val[0u] !=
(uint8_t)CY_BLE_PLXS_RACP_OPC_ABORT_OPN))
{
gattErr = CY_BLE_GATT_ERR_PROCEDURE_ALREADY_IN_PROGRESS;
}
else if(!CY_BLE_IS_INDICATION_ENABLED(eventParam->connHandle.attId, cy_ble_plxssConfigPtr->attrInfo->
charInfo[CY_BLE_PLXS_RACP].descrHandle[CY_BLE_PLXS_CCCD]))
{
gattErr = CY_BLE_GATT_ERR_CCCD_IMPROPERLY_CONFIGURED;
}
else
{
cy_stc_ble_gatts_db_attr_val_info_t dbAttrValInfo;
dbAttrValInfo.handleValuePair = eventParam->handleValPair;
dbAttrValInfo.connHandle = eventParam->connHandle;
dbAttrValInfo.offset = 0u;
dbAttrValInfo.flags = CY_BLE_GATT_DB_PEER_INITIATED;
locCharValue.charIndex = CY_BLE_PLXS_RACP;
locCharValue.value = &eventParam->handleValPair.value;
gattErr = Cy_BLE_GATTS_WriteAttributeValueCCCD(&dbAttrValInfo);
if(gattErr == CY_BLE_GATT_ERR_NONE)
{
Cy_BLE_PLXS_ApplCallback((uint32_t)CY_BLE_EVT_PLXSS_WRITE_CHAR, &locCharValue);
cy_ble_plxssFlag |= CY_BLE_PLXS_FLAG_PROCESS;
}
}
cy_ble_eventHandlerFlag &= (uint8_t) ~CY_BLE_CALLBACK;
}
else
{
for(locCharValue.charIndex = CY_BLE_PLXS_SCMT; locCharValue.charIndex < CY_BLE_PLXS_CHAR_COUNT;
locCharValue.charIndex++)
{
if(cy_ble_plxssConfigPtr->attrInfo->charInfo[locCharValue.charIndex].descrHandle[CY_BLE_PLXS_CCCD] ==
eventParam->handleValPair.attrHandle)
{
cy_stc_ble_gatts_db_attr_val_info_t dbAttrValInfo;
dbAttrValInfo.handleValuePair = eventParam->handleValPair;
dbAttrValInfo.connHandle = eventParam->connHandle;
dbAttrValInfo.offset = 0u;
dbAttrValInfo.flags = CY_BLE_GATT_DB_PEER_INITIATED;
gattErr = Cy_BLE_GATTS_WriteAttributeValueCCCD(&dbAttrValInfo);
locCharValue.value = NULL;
if(gattErr == CY_BLE_GATT_ERR_NONE)
{
switch(locCharValue.charIndex)
{
/* INDICATION */
case CY_BLE_PLXS_SCMT:
case CY_BLE_PLXS_RACP:
if(CY_BLE_IS_INDICATION_ENABLED_IN_PTR(eventParam->handleValPair.value.val))
{
Cy_BLE_PLXS_ApplCallback((uint32_t)CY_BLE_EVT_PLXSS_INDICATION_ENABLED,
&locCharValue);
}
else
{
Cy_BLE_PLXS_ApplCallback((uint32_t)CY_BLE_EVT_PLXSS_INDICATION_DISABLED,
&locCharValue);
}
break;
/* NOTIFICATION */
case CY_BLE_PLXS_CTMT:
if(CY_BLE_IS_NOTIFICATION_ENABLED_IN_PTR(eventParam->handleValPair.value.val))
{
Cy_BLE_PLXS_ApplCallback((uint32_t)CY_BLE_EVT_PLXSS_NOTIFICATION_ENABLED,
&locCharValue);
}
else
{
Cy_BLE_PLXS_ApplCallback((uint32_t)CY_BLE_EVT_PLXSS_NOTIFICATION_DISABLED,
&locCharValue);
}
break;
default:
break;
}
}
cy_ble_eventHandlerFlag &= (uint8_t) ~CY_BLE_CALLBACK;
break;
}
}
}
}
if(gattErr != CY_BLE_GATT_ERR_NONE)
{
/* If we have gattErr, so release flag CY_BLE_PLXS_FLAG_PROCESS */
cy_ble_plxssFlag &= (uint8_t) ~CY_BLE_PLXS_FLAG_PROCESS;
}
return(gattErr);
}
/******************************************************************************
* Function Name: Cy_BLE_PLXSC_SetCharacteristicValue
***************************************************************************//**
*
* This function is used to write the characteristic (which is identified by
* charIndex) value attribute in the server. As a result a Write Request is
* sent to the GATT Server and on successful execution of the request on the
* server side, the CY_#BLE_EVT_PLXSS_WRITE_CHAR event is generated.
* On successful request execution on the server side, the Write Response is
* sent to the client.
*
* \param connHandle: The connection handle.
* \param charIndex: The index of a service characteristic.
* \param attrSize: The size of the characteristic value attribute.
* \param *attrValue: The pointer to the characteristic value data that should be
* sent to the server device.
*
* \return
* A return value of type \ref cy_en_ble_api_result_t.
*
* Error Codes | Description
* ------------ | -----------
* CY_BLE_SUCCESS | The request was handled successfully.
* CY_BLE_ERROR_INVALID_PARAMETER | Validation of the input parameter failed.
* CY_BLE_ERROR_GATT_DB_INVALID_ATTR_HANDLE | The peer device doesn't have the particular characteristic.
* CY_BLE_ERROR_INVALID_OPERATION | Operation is invalid for this characteristic.
* CY_BLE_ERROR_INVALID_STATE | Connection with the server is not established.
* CY_BLE_ERROR_MEMORY_ALLOCATION_FAILED | Memory allocation failed.
*
* \events
* In case of successful execution (return value = \ref CY_BLE_SUCCESS)
* the following events can appear: \n
* If the PLXS service-specific callback is registered
* (with \ref Cy_BLE_PLXS_RegisterAttrCallback):
* * #CY_BLE_EVT_PLXSC_WRITE_CHAR_RESPONSE - In case if the requested attribute is
* successfully written on the peer device,
* the details (charIndex, etc.) are
* provided with event parameter structure
* of type cy_stc_ble_plxs_char_value_t.
* .
* Otherwise (if the PLXS service-specific callback is not registered):
* * #CY_BLE_EVT_GATTC_WRITE_RSP - In case if the requested attribute is
* successfully written on the peer device.
* * #CY_BLE_EVT_GATTC_ERROR_RSP - In case if an error occurred with the
* requested attribute on the peer device,
* the details are provided with event parameters
* structure (cy_stc_ble_gatt_err_param_t).
*
******************************************************************************/
cy_en_ble_api_result_t Cy_BLE_PLXSC_SetCharacteristicValue(cy_stc_ble_conn_handle_t connHandle,
cy_en_ble_plxs_char_index_t charIndex,
uint8_t attrSize,
uint8_t * attrValue)
{
cy_en_ble_api_result_t apiResult;
uint32_t discIdx = Cy_BLE_GetDiscoveryIdx(connHandle);
/* Get pointer (with offset) to PLXS client structure with attribute handles */
cy_stc_ble_plxsc_t *plxscPtr = (cy_stc_ble_plxsc_t *)&cy_ble_plxscConfigPtr->attrInfo[discIdx];
/* Check the parameters */
if(Cy_BLE_GetConnectionState(connHandle) != CY_BLE_CONN_STATE_CLIENT_DISCOVERED)
{
apiResult = CY_BLE_ERROR_INVALID_STATE;
}
else if((charIndex >= CY_BLE_PLXS_CHAR_COUNT) || (discIdx >= cy_ble_configPtr->params->maxClientCount))
{
apiResult = CY_BLE_ERROR_INVALID_PARAMETER;
}
else if(plxscPtr->charInfo[charIndex].valueHandle == CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE)
{
apiResult = CY_BLE_ERROR_GATT_DB_INVALID_ATTR_HANDLE;
}
else if((CY_BLE_CHAR_PROP_WRITE & plxscPtr->charInfo[charIndex].properties) == 0u)
{
apiResult = CY_BLE_ERROR_INVALID_OPERATION;
}
else
{
cy_stc_ble_gattc_write_req_t writeReqParam;
writeReqParam.handleValPair.attrHandle = plxscPtr->charInfo[charIndex].valueHandle;
writeReqParam.handleValPair.value.val = attrValue;
writeReqParam.handleValPair.value.len = attrSize;
writeReqParam.connHandle = connHandle;
apiResult = Cy_BLE_GATTC_WriteCharacteristicValue(&writeReqParam);
if(apiResult == CY_BLE_SUCCESS)
{
cy_ble_plxscReqHandle[discIdx] = plxscPtr->charInfo[charIndex].valueHandle;
}
if(charIndex == CY_BLE_PLXS_RACP)
{
/* Start RACP procedure. It will ends when the Collector sends a confirmation to acknowledge the RACP
* indication sent by the Sensor. A procedure is considered to have timed out if a RACP indication
* (or PLX Spot-check Measurement characteristic indication) is not received within the ATT transaction timeout,
* defined as 5 seconds. #CY_BLE_EVT_PLXSC_TIMEOUT event indicate about CP procedure timeout.
*/
apiResult = Cy_BLE_StartTimer(&cy_ble_plxscRacpTimeout[discIdx]);
if(apiResult == CY_BLE_SUCCESS)
{
cy_ble_plxscFlag[discIdx] |= CY_BLE_PLXS_FLAG_PROCESS;
}
}
}
return(apiResult);
}
/******************************************************************************
* Function Name: Cy_BLE_PLXSC_GetCharacteristicValue
***************************************************************************//**
*
* This function is used to read the characteristic Value from a server
* which is identified by charIndex.
*
* \param connHandle: The connection handle.
* \param charIndex: The index of the service characteristic.
*
* \return
* A return value of type \ref cy_en_ble_api_result_t.
*
* Error Codes | Description
* ------------ | -----------
* CY_BLE_SUCCESS | The request was handled successfully.
* CY_BLE_ERROR_INVALID_PARAMETER | Validation of the input parameter failed.
* CY_BLE_ERROR_GATT_DB_INVALID_ATTR_HANDLE | The peer device doesn't have the particular characteristic.
* CY_BLE_ERROR_INVALID_OPERATION | Operation is invalid for this characteristic.
* CY_BLE_ERROR_INVALID_STATE | Connection with the server is not established.
* CY_BLE_ERROR_MEMORY_ALLOCATION_FAILED | Memory allocation failed.
*
* \events
* In case of successful execution (return value = \ref CY_BLE_SUCCESS)
* the following events can appear: \n
* If the PLXS service-specific callback is registered
* (with \ref Cy_BLE_PLXS_RegisterAttrCallback):
* * #CY_BLE_EVT_PLXSC_READ_CHAR_RESPONSE - In case if the requested attribute is
* successfully read on the peer device,
* the details (charIndex , value, etc.) are
* provided with event parameter structure
* of type cy_stc_ble_plxs_char_value_t.
* .
* Otherwise (if the PLXS service-specific callback is not registered):
* * #CY_BLE_EVT_GATTC_READ_RSP - In case if the requested attribute is
* successfully read on the peer device,
* the details (handle, value, etc.) are
* provided with event parameters
* structure (cy_stc_ble_gattc_read_rsp_param_t).
* * #CY_BLE_EVT_GATTC_ERROR_RSP - In case if an error occurred with the
* requested attribute on the peer device,
* the details are provided with event parameters
* structure (cy_stc_ble_gatt_err_param_t).
*
******************************************************************************/
cy_en_ble_api_result_t Cy_BLE_PLXSC_GetCharacteristicValue(cy_stc_ble_conn_handle_t connHandle,
cy_en_ble_plxs_char_index_t charIndex)
{
cy_en_ble_api_result_t apiResult;
uint32_t discIdx = Cy_BLE_GetDiscoveryIdx(connHandle);
/* Get pointer (with offset) to PLXS client structure with attribute handles */
cy_stc_ble_plxsc_t *plxscPtr = (cy_stc_ble_plxsc_t *)&cy_ble_plxscConfigPtr->attrInfo[discIdx];
/* Check the parameters */
if(Cy_BLE_GetConnectionState(connHandle) != CY_BLE_CONN_STATE_CLIENT_DISCOVERED)
{
apiResult = CY_BLE_ERROR_INVALID_STATE;
}
else if((charIndex >= CY_BLE_PLXS_CHAR_COUNT) || (discIdx >= cy_ble_configPtr->params->maxClientCount))
{
apiResult = CY_BLE_ERROR_INVALID_PARAMETER;
}
else if(plxscPtr->charInfo[charIndex].valueHandle == CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE)
{
apiResult = CY_BLE_ERROR_GATT_DB_INVALID_ATTR_HANDLE;
}