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bless/cy_ble_ess.c

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/***************************************************************************//**
* \file cy_ble_ess.c
* \version 3.60
*
* \brief
* Contains the source code for the Environmental Sensing 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_ESS_EventHandler(uint32_t eventCode, void *eventParam);
static cy_en_ble_gatt_err_code_t Cy_BLE_ESSS_EventHandler(uint32_t eventCode, void *eventParam);
static cy_en_ble_gatt_err_code_t Cy_BLE_ESSC_EventHandler(uint32_t eventCode, void *eventParam);
static cy_en_ble_gatt_err_code_t Cy_BLE_ESSS_WriteEventHandler(cy_stc_ble_gatts_write_cmd_req_param_t *eventParam);
static void Cy_BLE_ESSS_PrepareWriteRequestEventHandler(const cy_stc_ble_gatts_prep_write_req_param_t *eventParam);
static void Cy_BLE_ESSS_ExecuteWriteRequestEventHandler(cy_stc_ble_gatts_exec_write_req_t *eventParam);
static void Cy_BLE_ESSS_ConfirmationEventHandler(const cy_stc_ble_conn_handle_t *eventParam);
static void Cy_BLE_ESSC_DiscoverCharacteristicsEventHandler(const cy_stc_ble_disc_char_info_t *discCharInfo);
static void Cy_BLE_ESSC_DiscoverCharDescriptorsEventHandler(cy_stc_ble_disc_descr_info_t *discDescrInfo);
static void Cy_BLE_ESSC_GetCharRange(cy_stc_ble_disc_range_info_t *charRangeInfo);
static void Cy_BLE_ESSC_NotificationEventHandler(cy_stc_ble_gattc_handle_value_ntf_param_t *eventParam);
static void Cy_BLE_ESSC_IndicationEventHandler(cy_stc_ble_gattc_handle_value_ind_param_t *eventParam);
static void Cy_BLE_ESSC_ReadResponseEventHandler(cy_stc_ble_gattc_read_rsp_param_t *eventParam);
static void Cy_BLE_ESSC_ReadLongRespEventHandler(const cy_stc_ble_gattc_read_rsp_param_t *eventParam);
static void Cy_BLE_ESSC_WriteResponseEventHandler(const cy_stc_ble_conn_handle_t *eventParam);
static void Cy_BLE_ESSC_ExecuteWriteResponseEventHandler(const cy_stc_ble_gattc_exec_write_rsp_t *eventParam);
static void Cy_BLE_ESSC_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_ESS_ApplCallback = NULL;
static cy_ble_event_handler_cb_t Cy_BLE_ESSC_EventHandlerCallback = NULL;
static cy_ble_event_handler_cb_t Cy_BLE_ESSS_EventHandlerCallback = NULL;
/* The internal storage for the last request handle to check response */
static cy_ble_gatt_db_attr_handle_t cy_ble_esscReqHandle[CY_BLE_MAX_CONNECTION_INSTANCES];
/* The internal storage for the last request handle to check response for server */
static cy_ble_gatt_db_attr_handle_t cy_ble_esssReqHandle;
/* The pointer to a global BLE ESS server config structure */
const cy_stc_ble_esss_config_t *cy_ble_esssConfigPtr = NULL;
/* The pointer to a global BLE ESS client config structure */
const cy_stc_ble_essc_config_t *cy_ble_esscConfigPtr = NULL;
/* Read Long Descriptors variables */
static uint8_t *cy_ble_esscRdLongBuffPtr[CY_BLE_MAX_CONNECTION_INSTANCES] = { 0u };
static uint32_t cy_ble_esscRdLongBuffLen[CY_BLE_MAX_CONNECTION_INSTANCES] = { 0u };
static uint8_t cy_ble_esscCurrLen[CY_BLE_MAX_CONNECTION_INSTANCES] = { 0u };
static uint8_t activeCharInstance[CY_BLE_MAX_CONNECTION_INSTANCES] = { 0u };
/******************************************************************************
* Function Name: Cy_BLE_ESSS_Init
***************************************************************************//**
*
* This function initializes server of the Environmental Sensing service.
*
* \param config: Configuration structure for the ESS.
*
* \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_ESSS_Init(const cy_stc_ble_esss_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_esssConfigPtr = config;
/* Registers event handler for the ESS */
apiResult = Cy_BLE_RegisterServiceEventHandler(&Cy_BLE_ESS_EventHandler);
/* Registers a pointer to server event handler function */
Cy_BLE_ESSS_EventHandlerCallback = &Cy_BLE_ESSS_EventHandler;
/* Sets the value for Aggregate characteristic */
cy_ble_esssReqHandle = CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE;
}
return(apiResult);
}
/******************************************************************************
* Function Name: Cy_BLE_ESSC_Init
***************************************************************************//**
*
* This function initializes client of the Environmental Sensing service.
*
* \param config: Configuration structure for the ESS.
*
* \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_ESSC_Init(const cy_stc_ble_essc_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_esscConfigPtr = config;
/* Registers event handler for the ESS */
apiResult = Cy_BLE_RegisterServiceEventHandler(&Cy_BLE_ESS_EventHandler);
/* Registers a pointer to client event handler function */
Cy_BLE_ESSC_EventHandlerCallback = &Cy_BLE_ESSC_EventHandler;
for(idx = 0u; idx < cy_ble_configPtr->params->maxClientCount; idx++)
{
uint32_t j;
uint32 servCnt = cy_ble_configPtr->context->discServiCount;
uint32 essServIdx = cy_ble_esscConfigPtr->serviceDiscIdx;
if(cy_ble_configPtr->context->serverInfo[idx * servCnt].range.startHandle ==
CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE)
{
uint32_t i;
for(i = 0u; (i < (uint32_t)CY_BLE_AIOS_CHAR_COUNT); i++)
{
/* Get pointer to ESS client structure */
cy_stc_ble_essc_t *esscPtr = (cy_stc_ble_essc_t *)&cy_ble_esscConfigPtr->attrInfo[idx];
for(j = 0u; j < cy_ble_esscConfigPtr->charInstances[i]; j++)
{
(void)memset(&esscPtr->charInfoAddr[i].charInfoPtr[j], 0, sizeof(cy_stc_ble_essc_char_t));
}
}
/* Initialize uuid */
cy_ble_configPtr->context->serverInfo[(idx * servCnt) + essServIdx].uuid =
CY_BLE_UUID_ENVIRONMENTAL_SENSING_SERVICE;
}
cy_ble_esscRdLongBuffPtr[idx] = NULL;
cy_ble_esscRdLongBuffLen[idx] = 0u;
cy_ble_esscCurrLen[idx] = 0u;
cy_ble_esscReqHandle[idx] = CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE;
activeCharInstance[idx] = 0u;
}
}
return(apiResult);
}
/******************************************************************************
* Function Name: Cy_BLE_ESS_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 ESS 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_ESSS_NOTIFICATION_ENABLED).
* * eventParam: Contains the parameters corresponding to the
* current event; (e.g. pointer to \ref cy_stc_ble_ess_char_value_t
* structure that contains details of the characteristic
* for which the notification enabled event was triggered).
*
******************************************************************************/
void Cy_BLE_ESS_RegisterAttrCallback(cy_ble_callback_t callbackFunc)
{
Cy_BLE_ESS_ApplCallback = callbackFunc;
}
/******************************************************************************
* Function Name: Cy_BLE_ESS_Get24ByPtr
***************************************************************************//**
*
* Returns a three-bytes value by using a pointer to the LSB. The value is
* returned as uint32_t.
*
* \param ptr: The pointer to the LSB of three-byte data (little-endian).
*
* \return
* uint32_t value: Three-byte data.
*
******************************************************************************/
uint32_t Cy_BLE_ESS_Get24ByPtr(const uint8_t ptr[])
{
return(((uint32_t)ptr[0u]) | ((uint32_t)(((uint32_t)ptr[1u]) << 8u)) | ((uint32_t)((uint32_t)ptr[2u]) << 16u));
}
/******************************************************************************
* Function Name: Cy_BLE_ESS_Get32ByPtr
***************************************************************************//**
*
* Returns a four-byte value by using a pointer to the LSB.
*
* \param ptr: The pointer to the LSB of four-byte data (little-endian).
*
* \return
* uint32_t value: Four-byte data.
*
******************************************************************************/
uint32_t Cy_BLE_ESS_Get32ByPtr(const uint8_t ptr[])
{
return(((uint32_t)ptr[0u]) | ((uint32_t)(((uint32_t)ptr[1u]) << 8u)) | ((uint32_t)((uint32_t)ptr[2u]) << 16u) |
((uint32_t)((uint32_t)ptr[3u]) << 24u));
}
/******************************************************************************
* Function Name: Cy_BLE_ESSS_CheckIfInRange
***************************************************************************//**
*
* Checks if the "value" is in the range of "min" and "max". As the ESS
* characteristics operate with signed or unsigned value types and the value in
* the GATT database are stored in unsigned variables. Need to clearly identify
* the signedness of each "value", "min" and "max". After that the values can
* be properly compared. The signedness of each parameter is encoded in "state"
* and has the following meaning:
* State 0: All three are positive (all three are of unsigned type)
* State 1: Min - positive, Max - positive, Value - negative
* State 2: Min - positive, Max - negative, Value - positive
* State 3: Min - positive, Max - negative, Value - negative
* State 4: Min - negative, Max - positive, Value - positive
* State 5: Min - negative, Max - positive, Value - negative
* State 6: Min - negative, Max - negative, Value - positive
* State 7: All three are negative
*
* min - Minimum inclusive limit.
* max - Minimum inclusive limit.
* value - The value to be checked if it is in the range.
* state - The state as shown above.
*
* \return
* A return value of type cy_en_ble_gatt_err_code_t.
* * CY_BLE_GATT_ERR_NONE - "value" is in the range.
* * CY_BLE_GATT_ERR_OUT_OF_RANGE - "value" is not in the range.
*
******************************************************************************/
cy_en_ble_gatt_err_code_t Cy_BLE_ESSS_CheckIfInRange(uint32_t min,
uint32_t max,
uint32_t value,
uint8_t state)
{
cy_en_ble_gatt_err_code_t gattErr = CY_BLE_GATT_ERR_NONE;
switch(state)
{
/* All values are positive */
case CY_BLE_ESS_STATE_0:
if((min > value) || (max < value))
{
gattErr = CY_BLE_GATT_ERR_OUT_OF_RANGE;
}
break;
/* "Not in range" cases. Min and Max are negative and value is positive or
* vice versa.
*/
case CY_BLE_ESS_STATE_1:
case CY_BLE_ESS_STATE_6:
gattErr = CY_BLE_GATT_ERR_OUT_OF_RANGE;
break;
/* Min is negative, Max and value are positive */
case CY_BLE_ESS_STATE_4:
if(max < value)
{
gattErr = CY_BLE_GATT_ERR_OUT_OF_RANGE;
}
break;
/* Max is positive, Min and value are negative */
case CY_BLE_ESS_STATE_5:
if(min > value)
{
gattErr = CY_BLE_GATT_ERR_OUT_OF_RANGE;
}
break;
/* All values are negative */
case CY_BLE_ESS_STATE_7:
if((min > value) || (max < value))
{
gattErr = CY_BLE_GATT_ERR_OUT_OF_RANGE;
}
break;
/* Invalid cases. Handled by customizer. */
case CY_BLE_ESS_STATE_2:
case CY_BLE_ESS_STATE_3:
default:
gattErr = CY_BLE_GATT_ERR_OUT_OF_RANGE;
break;
}
return(gattErr);
}
/******************************************************************************
* Function Name: Cy_BLE_ESS_HandleRangeCheck
***************************************************************************//**
*
* Performs an extraction of the characteristic value ranges then compares it to
* the value received from the client and returns a result of the comparison.
*
* \param connHandle: The connection handle.
* \param charIndex: The index of the service characteristic. Starts with zero.
* \param charInstance: The instance number of the characteristic specified by
* "charIndex".
* \param length: The length of a buffer to store the main and may ranges. Can be 2,4,6
* or 8 bytes.
* \param type: Identifies the type of the value pointed by "pValue" (0 - the value
* is of unsigned type, 1 - the value is of signed type).
* \param pValue: The pointer to the value to be validated if it is in the range.
*
*
* \return
* A return value of type cy_en_ble_gatt_err_code_t.
* * CY_BLE_GATT_ERR_NONE - The value stored in "pValue" is in ranges specified
* by Valid Range descriptor of the characteristic
* addressed by "charIndex" and "charInstance".
* * CY_BLE_GATT_ERR_UNLIKELY_ERROR - Failed to read Valid Range Descriptor
* value.
* * CY_BLE_GATT_ERR_OUT_OF_RANGE - The value stored in "pValue" is not in the
* valid ranges.
*
******************************************************************************/
cy_en_ble_gatt_err_code_t Cy_BLE_ESS_HandleRangeCheck(cy_stc_ble_conn_handle_t connHandle,
cy_en_ble_ess_char_index_t charIndex,
uint8_t charInstance,
uint16_t length,
uint8_t type,
const uint8_t pValue[])
{
uint8_t locState = 0u;
uint8_t skipSignCheck = 0u;
uint8_t tmpBuff[8u] = {0u};
uint32_t maxLimit = 0u;
uint32_t minLimit = 0u;
uint32_t operand = 0u;
uint32_t u32Sign = 0u;
cy_en_ble_gatt_err_code_t apiResult = CY_BLE_GATT_ERR_UNLIKELY_ERROR;
if(Cy_BLE_ESSS_GetCharacteristicDescriptor(connHandle, charIndex, charInstance, CY_BLE_ESS_VRD, length, tmpBuff) ==
CY_BLE_SUCCESS)
{
switch(length)
{
case CY_BLE_ESS_2BYTES_LENGTH:
operand = (uint32_t)(pValue[0u]);
minLimit = (uint32_t)(tmpBuff[0u]);
maxLimit = (uint32_t)(tmpBuff[1u]);
u32Sign = CY_BLE_ESS_U8_SIGN_BIT;
break;
case CY_BLE_ESS_4BYTES_LENGTH:
operand = (uint32_t)Cy_BLE_ESS_Get16ByPtr(&pValue[0u]);
minLimit = (uint32_t)Cy_BLE_ESS_Get16ByPtr(&tmpBuff[0u]);
maxLimit = (uint32_t)Cy_BLE_ESS_Get16ByPtr(&tmpBuff[2u]);
u32Sign = CY_BLE_ESS_U16_SIGN_BIT;
break;
case CY_BLE_ESS_6BYTES_LENGTH:
operand = (uint32_t)Cy_BLE_ESS_Get24ByPtr(&pValue[0u]);
minLimit = (uint32_t)Cy_BLE_ESS_Get24ByPtr(&tmpBuff[0u]);
maxLimit = (uint32_t)Cy_BLE_ESS_Get24ByPtr(&tmpBuff[3u]);
u32Sign = CY_BLE_ESS_U24_SIGN_BIT;
break;
case CY_BLE_ESS_8BYTES_LENGTH:
operand = (uint32_t)Cy_BLE_ESS_Get32ByPtr(&pValue[0u]);
minLimit = (uint32_t)Cy_BLE_ESS_Get32ByPtr(&tmpBuff[0u]);
maxLimit = (uint32_t)Cy_BLE_ESS_Get32ByPtr(&tmpBuff[4u]);
break;
default:
skipSignCheck = 1u;
break;
}
if(skipSignCheck == 0u)
{
if(type != CY_BLE_ESS_UNSIGNED_TYPE)
{
locState = CY_BLE_ESS_IS_NEGATIVE(minLimit, u32Sign) << 1u;
locState = (locState | CY_BLE_ESS_IS_NEGATIVE(maxLimit, u32Sign)) << 1u;
locState |= CY_BLE_ESS_IS_NEGATIVE(operand, u32Sign);
}
else
{
locState = 0u;
}
}
/* Compare the operand to the limits with respect to the state
* and return the results.
*/
apiResult = Cy_BLE_ESSS_CheckIfInRange(minLimit, maxLimit, operand, locState);
}
return(apiResult);
}
/******************************************************************************
* Function Name: Cy_BLE_ESSS_WriteEventHandler
***************************************************************************//**
*
* Handles a Write Request event for Environmental Sensing service.
*
* \param eventParam: The pointer to the data structure specified by an event.
*
* \return
* A return value of type cy_en_ble_gatt_err_code_t.
* * CY_BLE_GATT_ERR_NONE - Write is successful.
* * CY_BLE_GATT_ERR_REQUEST_NOT_SUPPORTED - Request is not supported.
* * CY_BLE_GATT_ERR_INVALID_HANDLE - 'handleValuePair.attrHandle' is not valid.
* * CY_BLE_GATT_ERR_WRITE_NOT_PERMITTED - Write operation is not permitted on
* this attribute.
* * CY_BLE_GATT_ERR_INVALID_OFFSET - the offset value is invalid.
* * CY_BLE_GATT_ERR_UNLIKELY_ERROR - Some other error occurred.
* * CY_BLE_GATT_ERR_CONDITION_NOT_SUPPORTED - The condition in ES Trigger Settings
* descriptor is not supported.
* * CY_BLE_GATT_ERR_WRITE_REQ_REJECTED - A Write Request was rejected.
*
******************************************************************************/
static cy_en_ble_gatt_err_code_t Cy_BLE_ESSS_WriteEventHandler(cy_stc_ble_gatts_write_cmd_req_param_t *eventParam)
{
uint32_t event = (uint32_t)CY_BLE_EVT_ESSS_DESCR_WRITE;
uint32_t foundItem = 0u;
uint8_t i;
uint8_t j;
cy_stc_ble_esss_char_t *essCharInfoPtr;
cy_stc_ble_ess_descr_value_t wrDescrReqParam = { .connHandle = eventParam->connHandle };
cy_ble_gatt_db_attr_handle_t tmpHandle;
cy_en_ble_gatt_err_code_t gattErr = CY_BLE_GATT_ERR_NONE;
tmpHandle = eventParam->handleValPair.attrHandle;
if(Cy_BLE_ESS_ApplCallback != NULL)
{
wrDescrReqParam.descrIndex = CY_BLE_ESS_DESCR_COUNT;
/* Go through all possible service characteristics.
* Exit the handler in following conditions:
* 1) No more characteristic left;
* 2) Characteristic or descriptor was successfully written;
* 3) Error occurred while writing characteristic or descriptor.
*/
for(i = 0u; ((i < (uint8_t)CY_BLE_ESS_CHAR_COUNT) && (foundItem == 0u) && (gattErr == CY_BLE_GATT_ERR_NONE)); i++)
{
/* Check whether characteristic is enabled. If the pointer to the characteristic
* is not "NULL", there is at least one instance of the characteristic in
* the ES service.
*/
if(cy_ble_esssConfigPtr->attrInfo->charInfoAddr[i].charInfoPtr != NULL)
{
for(j = 0u; j < cy_ble_esssConfigPtr->charInstances[i]; j++)
{
essCharInfoPtr = (cy_stc_ble_esss_char_t *) &cy_ble_esssConfigPtr->attrInfo->charInfoAddr[i].charInfoPtr[j];
/* Client Characteristic Configuration descriptor Write Request handling */
if(tmpHandle == essCharInfoPtr->descrHandle[CY_BLE_ESS_CCCD])
{
/* Verify that optional notification property is enabled for characteristic */
if(CY_BLE_IS_NOTIFICATION_SUPPORTED(essCharInfoPtr->charHandle))
{
if(CY_BLE_IS_NOTIFICATION_ENABLED_IN_PTR(eventParam->handleValPair.value.val))
{
event = (uint32_t)CY_BLE_EVT_ESSS_NOTIFICATION_ENABLED;
}
else
{
event = (uint32_t)CY_BLE_EVT_ESSS_NOTIFICATION_DISABLED;
}
/* Value is NULL for descriptors */
wrDescrReqParam.value = NULL;
wrDescrReqParam.descrIndex = CY_BLE_ESS_CCCD;
foundItem = CY_BLE_ESS_DESCRIPTOR_ITEM;
}
else if(CY_BLE_IS_INDICATION_SUPPORTED(essCharInfoPtr->charHandle))
{
if(CY_BLE_IS_INDICATION_ENABLED_IN_PTR(eventParam->handleValPair.value.val))
{
event = (uint32_t)CY_BLE_EVT_ESSS_INDICATION_ENABLED;
}
else
{
event = (uint32_t)CY_BLE_EVT_ESSS_INDICATION_DISABLED;
}
/* Value is NULL for descriptors */
wrDescrReqParam.value = NULL;
wrDescrReqParam.descrIndex = CY_BLE_ESS_CCCD;
foundItem = CY_BLE_ESS_DESCRIPTOR_ITEM;
}
else
{
gattErr = (cy_en_ble_gatt_err_code_t)CY_BLE_GATT_ERR_WRITE_REQ_REJECTED;
}
}
else if(tmpHandle == essCharInfoPtr->descrHandle[CY_BLE_ESS_ES_TRIGGER_SETTINGS_DESCR1])
{
wrDescrReqParam.descrIndex = CY_BLE_ESS_ES_TRIGGER_SETTINGS_DESCR1;
foundItem = CY_BLE_ESS_DESCRIPTOR_ITEM;
}
else if(tmpHandle == essCharInfoPtr->descrHandle[CY_BLE_ESS_ES_TRIGGER_SETTINGS_DESCR2])
{
wrDescrReqParam.descrIndex = CY_BLE_ESS_ES_TRIGGER_SETTINGS_DESCR2;
foundItem = CY_BLE_ESS_DESCRIPTOR_ITEM;
}
else if(tmpHandle == essCharInfoPtr->descrHandle[CY_BLE_ESS_ES_TRIGGER_SETTINGS_DESCR3])
{
wrDescrReqParam.descrIndex = CY_BLE_ESS_ES_TRIGGER_SETTINGS_DESCR3;
foundItem = CY_BLE_ESS_DESCRIPTOR_ITEM;
}
else if(tmpHandle == essCharInfoPtr->descrHandle[CY_BLE_ESS_ES_CONFIG_DESCR])
{
wrDescrReqParam.descrIndex = CY_BLE_ESS_ES_CONFIG_DESCR;
foundItem = CY_BLE_ESS_DESCRIPTOR_ITEM;
}
else if(tmpHandle == essCharInfoPtr->descrHandle[CY_BLE_ESS_CHAR_USER_DESCRIPTION_DESCR])
{
wrDescrReqParam.descrIndex = CY_BLE_ESS_CHAR_USER_DESCRIPTION_DESCR;
foundItem = CY_BLE_ESS_DESCRIPTOR_ITEM;
}
else
{
/* No handle match was found */
}
/* Verify if requested handle was found and successfully handled */
if((gattErr == CY_BLE_GATT_ERR_NONE) && (0u != foundItem))
{
switch(wrDescrReqParam.descrIndex)
{
case CY_BLE_ESS_ES_TRIGGER_SETTINGS_DESCR1:
case CY_BLE_ESS_ES_TRIGGER_SETTINGS_DESCR2:
case CY_BLE_ESS_ES_TRIGGER_SETTINGS_DESCR3:
if(eventParam->handleValPair.value.val[0u] > CY_BLE_ESS_TRIG_WHILE_EQUAL_NOT_TO)
{
/* Trigger condition is not supported */
gattErr = (cy_en_ble_gatt_err_code_t)CY_BLE_GATT_ERR_CONDITION_NOT_SUPPORTED;
}
/* If Valid Range descriptor for the characteristic is present, then
* check the characteristic value range. The ranges should be properly
* set in the server or otherwise the server will constantly return an
* "Out of range" error.
*/
else if((CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE !=
essCharInfoPtr->descrHandle[CY_BLE_ESS_VRD]) &&
(eventParam->handleValPair.value.len > 1u) &&
(eventParam->handleValPair.value.val[0u] >= CY_BLE_ESS_TRIG_WHILE_LESS_THAN))
{
/* The following "switch" groups characteristics are based on their value
* type.
*/
switch((cy_en_ble_ess_char_index_t)i)
{
/* uint8_t */
case CY_BLE_ESS_BAROMETRIC_PRESSURE_TREND:
case CY_BLE_ESS_GUST_FACTOR:
case CY_BLE_ESS_UV_INDEX:
gattErr = Cy_BLE_ESS_HandleRangeCheck(eventParam->connHandle,
(cy_en_ble_ess_char_index_t)i, j,
CY_BLE_ESS_2BYTES_LENGTH,
CY_BLE_ESS_UNSIGNED_TYPE,
&eventParam->handleValPair.value.val[1u]);
break;
/* uint16_t */
case CY_BLE_ESS_APPARENT_WIND_DIR:
case CY_BLE_ESS_APPARENT_WIND_SPEED:
case CY_BLE_ESS_HUMIDITY:
case CY_BLE_ESS_IRRADIANCE:
case CY_BLE_ESS_MAGNETIC_DECLINATION:
case CY_BLE_ESS_RAINFALL:
case CY_BLE_ESS_TRUE_WIND_DIR:
case CY_BLE_ESS_TRUE_WIND_SPEED:
gattErr = Cy_BLE_ESS_HandleRangeCheck(eventParam->connHandle,
(cy_en_ble_ess_char_index_t)i, j,
CY_BLE_ESS_4BYTES_LENGTH,
CY_BLE_ESS_UNSIGNED_TYPE,
&eventParam->handleValPair.value.val[1u]);
break;
/* uint24 */
case CY_BLE_ESS_POLLEN_CONCENTRATION:
gattErr = Cy_BLE_ESS_HandleRangeCheck(eventParam->connHandle,
(cy_en_ble_ess_char_index_t)i, j,
CY_BLE_ESS_6BYTES_LENGTH,
CY_BLE_ESS_UNSIGNED_TYPE,
&eventParam->handleValPair.value.val[1u]);
break;
/* uint32_t */
case CY_BLE_ESS_PRESSURE:
gattErr = Cy_BLE_ESS_HandleRangeCheck(eventParam->connHandle,
(cy_en_ble_ess_char_index_t)i, j,
CY_BLE_ESS_8BYTES_LENGTH,
CY_BLE_ESS_UNSIGNED_TYPE,
&eventParam->handleValPair.value.val[1u]);
break;
/* int8_t */
case CY_BLE_ESS_DEW_POINT:
case CY_BLE_ESS_HEAT_INDEX:
case CY_BLE_ESS_WIND_CHILL:
gattErr = Cy_BLE_ESS_HandleRangeCheck(eventParam->connHandle,
(cy_en_ble_ess_char_index_t)i, j,
CY_BLE_ESS_2BYTES_LENGTH,
CY_BLE_ESS_SIGNED_TYPE,
&eventParam->handleValPair.value.val[1u]);
break;
/* int16_t */
case CY_BLE_ESS_TEMPERATURE:
gattErr = Cy_BLE_ESS_HandleRangeCheck(eventParam->connHandle,
(cy_en_ble_ess_char_index_t)i, j,
CY_BLE_ESS_4BYTES_LENGTH,
CY_BLE_ESS_SIGNED_TYPE,
&eventParam->handleValPair.value.val[1u]);
break;
/* int24 */
case CY_BLE_ESS_ELEVATION:
gattErr = Cy_BLE_ESS_HandleRangeCheck(eventParam->connHandle,
(cy_en_ble_ess_char_index_t)i, j,
CY_BLE_ESS_6BYTES_LENGTH,
CY_BLE_ESS_SIGNED_TYPE,
&eventParam->handleValPair.value.val[1u]);
break;
case CY_BLE_ESS_MAGNETIC_FLUX_DENSITY_2D:
/* No validation required */
break;
case CY_BLE_ESS_MAGNETIC_FLUX_DENSITY_3D:
/* No validation required */
break;
default:
/* Invalid characteristic */
gattErr = CY_BLE_GATT_ERR_UNLIKELY_ERROR;
break;
}
}
else /* No error */
{
if(CY_BLE_GATT_DB_ATTR_GET_ATTR_GEN_MAX_LEN(
essCharInfoPtr->descrHandle[wrDescrReqParam.descrIndex]) >=
eventParam->handleValPair.value.len)
{
/* Set new length of the descriptor value */
CY_BLE_GATT_DB_ATTR_SET_ATTR_GEN_LEN(
essCharInfoPtr->descrHandle[wrDescrReqParam.descrIndex],
eventParam->handleValPair.value.len);
}
else
{
gattErr = CY_BLE_GATT_ERR_INVALID_ATTRIBUTE_LEN;
}
}
break;
case CY_BLE_ESS_ES_CONFIG_DESCR:
if(eventParam->handleValPair.value.val[0u] > CY_BLE_ESS_CONF_BOOLEAN_OR)
{
/* Trigger Logic value is not supported */
gattErr = (cy_en_ble_gatt_err_code_t)CY_BLE_GATT_ERR_WRITE_REQ_REJECTED;
}
break;
case CY_BLE_ESS_CHAR_USER_DESCRIPTION_DESCR:
/* The ESS spec. states are the following: "The Server may also choose to reject
* a Write Request to the Characteristic User Description if it determines that
* the contents of the new value are unsuitable, such as a string containing
* characters in a language that the implementation does not support."
* This validation is omitted in the current version of the service.
*/
if(CY_BLE_GATT_DB_ATTR_GET_ATTR_GEN_MAX_LEN(
essCharInfoPtr->descrHandle[CY_BLE_ESS_CHAR_USER_DESCRIPTION_DESCR]) >=
eventParam->handleValPair.value.len)
{
/* Set new length of the descriptor value */
CY_BLE_GATT_DB_ATTR_SET_ATTR_GEN_LEN(
essCharInfoPtr->descrHandle[CY_BLE_ESS_CHAR_USER_DESCRIPTION_DESCR],
eventParam->handleValPair.value.len);
}
else
{
gattErr = CY_BLE_GATT_ERR_INVALID_ATTRIBUTE_LEN;
}
break;
default:
break;
}
/* Check is there no error conditions happen yet */
if(gattErr == CY_BLE_GATT_ERR_NONE)
{
gattErr = Cy_BLE_GATT_DbCheckPermission(eventParam->handleValPair.attrHandle,
&eventParam->connHandle, CY_BLE_GATT_DB_WRITE |
CY_BLE_GATT_DB_PEER_INITIATED);
if(gattErr == CY_BLE_GATT_ERR_NONE)
{
/* Fill data and pass it to user */
wrDescrReqParam.charIndex = (cy_en_ble_ess_char_index_t)i;
wrDescrReqParam.charInstance = j;
wrDescrReqParam.gattErrorCode = CY_BLE_GATT_ERR_NONE;
if(wrDescrReqParam.descrIndex != CY_BLE_ESS_CCCD)
{
/* Check whether descriptor index is not CCCD index as "event" and
* "wrDescrReqParam.value" parameters for CCCD were handled
* above.
*/
wrDescrReqParam.value = &eventParam->handleValPair.value;
}
Cy_BLE_ESS_ApplCallback(event, &wrDescrReqParam);
if(wrDescrReqParam.gattErrorCode == CY_BLE_GATT_ERR_NONE)
{
/* 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);
}
}
}
cy_ble_eventHandlerFlag &= (uint8_t) ~CY_BLE_CALLBACK;
break;
}
}
}
}
}
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_ESSS_PrepareWriteRequestEventHandler
***************************************************************************//**
*
* Handles the Write Request event for the Environmental Sensing service.
*
* \param eventParam: The pointer to the data that received with a prepare write
* request event for the Environmental Sensing service.
*
******************************************************************************/
static void Cy_BLE_ESSS_PrepareWriteRequestEventHandler(const cy_stc_ble_gatts_prep_write_req_param_t *eventParam)
{
uint32_t i;
uint32_t j;
uint8_t exitLoop = 0u;
cy_stc_ble_esss_char_t *essCharInfoPtr;
if(Cy_BLE_ESS_ApplCallback != NULL)
{
for(i = 0u; ((i < ((uint8_t)CY_BLE_ESS_CHAR_COUNT)) && (exitLoop == 0u)); i++)
{
/* Check whether characteristic is enabled. If the pointer to the characteristic
* is not "NULL", there is at least one instance of the characteristic in
* the ES service.
*/
if(cy_ble_esssConfigPtr->attrInfo->charInfoAddr[i].charInfoPtr != NULL)
{
for(j = 0u; ((j < cy_ble_esssConfigPtr->charInstances[i]) && (exitLoop == 0u)); j++)
{
essCharInfoPtr = (cy_stc_ble_esss_char_t *) &cy_ble_esssConfigPtr->attrInfo->charInfoAddr[i].charInfoPtr[j];
/* Need to check following conditions: 1) if requested handle is the handle of
* Characteristic User Description Descriptor; 2) and if there is no active
* requests; 3) or there is an active request but the requested handle is
* different handle. The third condition means that previous request resulted
* with an error so need to handle that.
*/
if(eventParam->baseAddr[eventParam->currentPrepWriteReqCount - 1u].handleValuePair.attrHandle ==
essCharInfoPtr->descrHandle[CY_BLE_ESS_CHAR_USER_DESCRIPTION_DESCR])
{
if(cy_ble_esssReqHandle == CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE)
{
/* Send Prepare Write Response which identifies acknowledgment for
* long characteristic value write.
*/
cy_ble_esssReqHandle =
eventParam->baseAddr[eventParam->currentPrepWriteReqCount - 1u].handleValuePair.attrHandle;
}
/* Indicate that request was handled */
cy_ble_eventHandlerFlag &= (uint8_t) ~CY_BLE_CALLBACK;
/* Set the flag to exit the loop */
exitLoop = 1u;
}
}
}
}
}
}
/******************************************************************************
* Function Name: Cy_BLE_ESSS_ExecuteWriteRequestEventHandler
***************************************************************************//**
*
* Handles the Execute Write Request event for the Environmental Sensing service.
*
* \param eventParam: The pointer to the data that came with a Write Request for the
* Environmental Sensing service.
*
******************************************************************************/
static void Cy_BLE_ESSS_ExecuteWriteRequestEventHandler(cy_stc_ble_gatts_exec_write_req_t *eventParam)
{
uint8_t i;
uint8_t j;
uint8_t locCount;
uint8_t exitLoop = 0u;
uint16_t locLength = 0u;
cy_stc_ble_gatt_value_t locDescrValue;
cy_stc_ble_ess_descr_value_t wrDescrReqParam = { .connHandle = eventParam->connHandle };
if(Cy_BLE_ESS_ApplCallback != NULL)
{
for(i = 0u; ((i < ((uint8_t)CY_BLE_ESS_CHAR_COUNT)) && (exitLoop == 0u)); i++)
{
/* Check whether characteristic is enabled. If the pointer to the characteristic
* is not "NULL", there is at least one instance of the characteristic in
* the ES service.
*/
if(cy_ble_esssConfigPtr->attrInfo->charInfoAddr[i].charInfoPtr != NULL)
{
for(j = 0u; ((j < cy_ble_esssConfigPtr->charInstances[i]) && (exitLoop == 0u)); j++)
{
if((eventParam->baseAddr[0u].handleValuePair.attrHandle ==
cy_ble_esssConfigPtr->attrInfo->charInfoAddr[i].charInfoPtr[j].
descrHandle[CY_BLE_ESS_CHAR_USER_DESCRIPTION_DESCR]) &&
(cy_ble_esssReqHandle == eventParam->baseAddr[0u].handleValuePair.attrHandle))
{
/* Check the execWriteFlag before execute or cancel write long operation */
if(eventParam->execWriteFlag == CY_BLE_GATT_EXECUTE_WRITE_EXEC_FLAG)
{
for(locCount = 0u; locCount < eventParam->prepWriteReqCount; locCount++)
{
locLength += eventParam->baseAddr[locCount].handleValuePair.value.len;
}
if(CY_BLE_GATT_DB_ATTR_GET_ATTR_GEN_MAX_LEN(cy_ble_esssReqHandle) >= locLength)
{
locDescrValue = eventParam->baseAddr[0u].handleValuePair.value;
/* Fill data and pass it to user */
wrDescrReqParam.charIndex = (cy_en_ble_ess_char_index_t)i;
wrDescrReqParam.charInstance = j;
wrDescrReqParam.gattErrorCode = CY_BLE_GATT_ERR_NONE;
wrDescrReqParam.value = &locDescrValue;
wrDescrReqParam.value->len = locLength;
wrDescrReqParam.descrIndex = CY_BLE_ESS_CHAR_USER_DESCRIPTION_DESCR;
Cy_BLE_ESS_ApplCallback((uint32_t)CY_BLE_EVT_ESSS_DESCR_WRITE, &wrDescrReqParam);
if(wrDescrReqParam.gattErrorCode == CY_BLE_GATT_ERR_NONE)
{
CY_BLE_GATT_DB_ATTR_SET_ATTR_GEN_LEN(cy_ble_esssReqHandle, locLength);
}
}
else
{
wrDescrReqParam.gattErrorCode = CY_BLE_GATT_ERR_INVALID_ATTRIBUTE_LEN;
}
/* Pass user error code to Stack */
eventParam->gattErrorCode = (uint8_t)wrDescrReqParam.gattErrorCode;
}
/* Set the flag to exit the loop */
exitLoop = 1u;
/* Indicate that request was handled */
cy_ble_eventHandlerFlag &= (uint8_t) ~CY_BLE_CALLBACK;
/* Clear requested handle */
cy_ble_esssReqHandle = CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE;
}
}
}
}
}
}
/******************************************************************************
* Function Name: Cy_BLE_ESSS_ConfirmationEventHandler
***************************************************************************//**
*
* Handles a Value Confirmation request event from the BLE Stack.
*
* eventParam - The pointer to a structure of type cy_stc_ble_conn_handle_t.
*
******************************************************************************/
static void Cy_BLE_ESSS_ConfirmationEventHandler(const cy_stc_ble_conn_handle_t *eventParam)
{
if((Cy_BLE_ESS_ApplCallback != NULL) && (CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE != cy_ble_esssReqHandle))
{
/* Only descriptor Value Change Characteristic has Indication property.
* Check whether the requested handle is the handle of descriptor Value Change
* handle.
*/
if(cy_ble_esssReqHandle ==
cy_ble_esssConfigPtr->attrInfo->charInfoAddr[CY_BLE_ESS_DESCRIPTOR_VALUE_CHANGED].charInfoPtr[0u].charHandle)
{
/* Fill in event data and inform application about
* successfully confirmed indication. */
cy_stc_ble_ess_char_value_t locCharValue;
locCharValue.connHandle = *eventParam;
locCharValue.charIndex = CY_BLE_ESS_DESCRIPTOR_VALUE_CHANGED;
locCharValue.value = NULL;
cy_ble_eventHandlerFlag &= (uint8_t) ~CY_BLE_CALLBACK;
cy_ble_esssReqHandle = CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE;
Cy_BLE_ESS_ApplCallback((uint32_t)CY_BLE_EVT_ESSS_INDICATION_CONFIRMED, &locCharValue);
}
}
}
/******************************************************************************
* Function Name: Cy_BLE_ESSS_SetChangeIndex
***************************************************************************//**
*
* Performs write operation of two-byte pseudo-random change index to the
* advertisement packet. The "Service Data" field should be selected in the
* BLE Component customizer GUI and contain a two-byte initial change index
* value and in opposite case the function will always return
* \ref CY_BLE_ERROR_INVALID_OPERATION.
*
* This function must be called when \ref Cy_BLE_StackGetBleSsState() returns
* CY_BLE_BLESS_STATE_EVENT_CLOSE state.
*
* \param essIndex: A two-byte pseudo-random change index to be written to the
* advertisement data.
* \param advertisingParamIndex: The index of the peripheral and broadcast
* configuration in customizer. For example:
* * CY_BLE_PERIPHERAL_CONFIGURATION_0_INDEX 0x00
* * CY_BLE_BROADCASTER_CONFIGURATION_0_INDEX 0x01
*
* \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_OPERATION | This operation is not permitted
* CY_BLE_ERROR_INVALID_PARAMETER | On NULL pointer, Data length in input parameter exceeds 31 bytes.
*
******************************************************************************/
cy_en_ble_api_result_t Cy_BLE_ESSS_SetChangeIndex(uint16_t essIndex,
uint8_t advertisingParamIndex)
{
uint32_t fFlag = 0u;
uint8_t adLength = 0u;
uint32_t byteCounter = 0u;
cy_en_ble_api_result_t apiResult = CY_BLE_ERROR_INVALID_OPERATION;
if(advertisingParamIndex >= cy_ble_configPtr->params->gappConfCount)
{
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]);
if((cy_ble_configPtr->discoveryModeInfo[advertisingParamIndex].advData->advData[byteCounter] ==
CY_BLE_AD_TYPE_SERVICE_DATA) && (servUuid == CY_BLE_UUID_ENVIRONMENTAL_SENSING_SERVICE))
{
/* Start of a "Service Data" AD type 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 length is proper */
if(adLength == CY_BLE_ESS_SERVICE_DATA_LENGTH)
{
/* Increment byte counter so that it points to data value */
byteCounter += CY_BLE_AD_SERVICE_DATA_OVERHEAD;
Cy_BLE_Set16ByPtr(&cy_ble_configPtr->discoveryModeInfo[advertisingParamIndex].
advData->advData[byteCounter], essIndex);
/* 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_ESSS_SetCharacteristicValue
***************************************************************************//**
*
* Sets the characteristic value of the Environmental Sensing service in the
* local database.
*
* \param charIndex: The index of the service characteristic of type
* \ref cy_en_ble_ess_char_index_t.
* \param charInstance: The instance number of the characteristic specified by
* "charIndex".
* \param attrSize: The size (in Bytes) of the characteristic value attribute.
* \param attrValue: The pointer to the characteristic value data that should be
* stored in the GATT database.
*
* \return
* A return value of type \ref cy_en_ble_api_result_t.
*
* Error Codes | Description
* ------------ | -----------
* CY_BLE_SUCCESS | The request was handled successfully.
* CY_BLE_ERROR_INVALID_PARAMETER | Validation of the input parameter failed.
* CY_BLE_ERROR_GATT_DB_INVALID_ATTR_HANDLE| An optional characteristic is absent.
*
******************************************************************************/
cy_en_ble_api_result_t Cy_BLE_ESSS_SetCharacteristicValue(cy_en_ble_ess_char_index_t charIndex,
uint8_t charInstance,
uint8_t attrSize,
uint8_t *attrValue)
{
cy_en_ble_api_result_t apiResult = CY_BLE_ERROR_INVALID_PARAMETER;
/* Validate range of ESS characteristics */
if((charIndex < CY_BLE_ESS_CHAR_COUNT) && (charInstance < cy_ble_esssConfigPtr->charInstances[charIndex]))
{
/* Check whether requested characteristic is present in service.
* There are three conditions which should be checked: 1) The pointer to
* "cy_stc_ble_esss_char_t" is not NULL, 2) The handle of the characteristic is
* a valid handle, 3) The requested instance is a valid characteristic
* instance.
*/
if((cy_ble_esssConfigPtr->attrInfo->charInfoAddr[charIndex].charInfoPtr != NULL) &&
(cy_ble_esssConfigPtr->attrInfo->charInfoAddr[charIndex].charInfoPtr[charInstance].charHandle !=
CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE))
{
/* Store data in database */
cy_stc_ble_gatts_db_attr_val_info_t dbAttrValInfo;
dbAttrValInfo.connHandle.bdHandle = 0u;
dbAttrValInfo.connHandle.attId = 0u;
dbAttrValInfo.handleValuePair.attrHandle = cy_ble_esssConfigPtr->attrInfo->charInfoAddr[charIndex].
charInfoPtr[charInstance].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_SUCCESS;
}
}
else
{
apiResult = CY_BLE_ERROR_GATT_DB_INVALID_ATTR_HANDLE;
}
}
return(apiResult);
}
/******************************************************************************
* Function Name: Cy_BLE_ESSS_GetCharacteristicValue
***************************************************************************//**
*
* Gets a characteristic value of Environmental Sensing service. The value is
* identified by charIndex.
*
* \param charIndex: The index of the service characteristic of type
* \ref cy_en_ble_ess_char_index_t.
* \param charInstance: The instance number of the characteristic specified by
* "charIndex".
* \param attrSize: The size of the characteristic value attribute.
* \param attrValue: The pointer to the location where characteristic value
* data should be stored.
*
* \return
* A return value of type \ref cy_en_ble_api_result_t.
*
* Error Codes | Description
* ------------ | -----------
* CY_BLE_SUCCESS | The characteristic value was read successfully.
* CY_BLE_ERROR_INVALID_PARAMETER | Validation of the input parameter failed.
* CY_BLE_ERROR_GATT_DB_INVALID_ATTR_HANDLE | An optional characteristic is absent.
*
******************************************************************************/
cy_en_ble_api_result_t Cy_BLE_ESSS_GetCharacteristicValue(cy_en_ble_ess_char_index_t charIndex,
uint8_t charInstance,
uint8_t attrSize,
uint8_t *attrValue)
{
cy_en_ble_api_result_t apiResult = CY_BLE_ERROR_INVALID_PARAMETER;
if((charIndex < CY_BLE_ESS_CHAR_COUNT) && (charInstance < cy_ble_esssConfigPtr->charInstances[charIndex]))
{
/* Check whether requested characteristic is present in service. There are three
* conditions to be checked: 1) The pointer to "cy_stc_ble_esss_char_t" record in
* the cy_ble_esss struct is not NULL, 2) The handle of the characteristic is a
* valid handle, 3) The requested instance is a valid characteristic instance.
*/
if((cy_ble_esssConfigPtr->attrInfo->charInfoAddr[charIndex].charInfoPtr != NULL) &&
(cy_ble_esssConfigPtr->attrInfo->charInfoAddr[charIndex].charInfoPtr[charInstance].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_esssConfigPtr->attrInfo->charInfoAddr[charIndex].
charInfoPtr[charInstance].charHandle;
dbAttrValInfo.handleValuePair.value.len = attrSize;
dbAttrValInfo.handleValuePair.value.val = attrValue;
dbAttrValInfo.flags = CY_BLE_GATT_DB_LOCALLY_INITIATED;
dbAttrValInfo.offset = 0u;
/* Read characteristic value from database */
if(Cy_BLE_GATTS_ReadAttributeValueCCCD(&dbAttrValInfo) == CY_BLE_GATT_ERR_NONE)
{
apiResult = CY_BLE_SUCCESS;
/* Set new length of the descriptor value */
CY_BLE_GATT_DB_ATTR_SET_ATTR_GEN_LEN(cy_ble_esssConfigPtr->attrInfo->charInfoAddr[charIndex].
charInfoPtr[charInstance].charHandle, attrSize);
}
}
else
{
apiResult = CY_BLE_ERROR_GATT_DB_INVALID_ATTR_HANDLE;
}
}
return(apiResult);
}
/******************************************************************************
* Function Name: Cy_BLE_ESSS_SetCharacteristicDescriptor
***************************************************************************//**
*
* Sets the characteristic descriptor of the specified characteristic.
*
* \param connHandle: The connection handle.
* \param charIndex: The index of the service characteristic of type
* \ref cy_en_ble_ess_char_index_t.
* \param charInstance: The instance number of the characteristic specified by
* "charIndex".
* \param descrIndex: The index of the service characteristic descriptor of type
* \ref cy_en_ble_ess_descr_index_t.
* \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 characteristic descriptor value was read successfully.
* CY_BLE_ERROR_INVALID_PARAMETER | Validation of the input parameter failed.
* CY_BLE_ERROR_GATT_DB_INVALID_ATTR_HANDLE | An optional characteristic is absent.
*
******************************************************************************/
cy_en_ble_api_result_t Cy_BLE_ESSS_SetCharacteristicDescriptor(cy_stc_ble_conn_handle_t connHandle,
cy_en_ble_ess_char_index_t charIndex,
uint8_t charInstance,
cy_en_ble_ess_descr_index_t descrIndex,
uint16_t attrSize,
uint8_t *attrValue)
{
cy_en_ble_api_result_t apiResult = CY_BLE_ERROR_INVALID_PARAMETER;
if((charIndex < CY_BLE_ESS_CHAR_COUNT) && (charInstance < cy_ble_esssConfigPtr->charInstances[charIndex]) &&
(descrIndex < CY_BLE_ESS_DESCR_COUNT))
{
/* Check whether requested descriptor is present in service.
* There are three conditions to be checked: 1) The pointer to
* "cy_stc_ble_esss_char_t" is not NULL, 2) The handle of the characteristic is
* a valid handle, 3) The handle of the descriptor is a valid handle.
*/
if((cy_ble_esssConfigPtr->attrInfo->charInfoAddr[charIndex].charInfoPtr != NULL) &&
(CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE !=
cy_ble_esssConfigPtr->attrInfo->charInfoAddr[charIndex].charInfoPtr[charInstance].charHandle) &&
(CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE != cy_ble_esssConfigPtr->attrInfo->charInfoAddr[charIndex].
charInfoPtr[charInstance].descrHandle[descrIndex]))
{
cy_stc_ble_gatts_db_attr_val_info_t dbAttrValInfo;
dbAttrValInfo.handleValuePair.attrHandle = cy_ble_esssConfigPtr->attrInfo->charInfoAddr[charIndex].
charInfoPtr[charInstance].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;
/* Read characteristic value from database */
if(Cy_BLE_GATTS_WriteAttributeValueCCCD(&dbAttrValInfo) == CY_BLE_GATT_ERR_NONE)
{
apiResult = CY_BLE_SUCCESS;
/* Set new length of the descriptor value */
CY_BLE_GATT_DB_ATTR_SET_ATTR_GEN_LEN(cy_ble_esssConfigPtr->attrInfo->charInfoAddr[charIndex].
charInfoPtr[charInstance].descrHandle[descrIndex], attrSize);
}
}
else
{
apiResult = CY_BLE_ERROR_GATT_DB_INVALID_ATTR_HANDLE;
}
}
return(apiResult);
}
/******************************************************************************
* Function Name: Cy_BLE_ESSS_GetCharacteristicDescriptor
***************************************************************************//**
*
* Gets the characteristic descriptor of the specified characteristic.
*
* \param connHandle: The connection handle
* \param charIndex: The index of the service characteristic of type
* \ref cy_en_ble_ess_char_index_t.
* \param charInstance: The instance number of the characteristic specified by
* "charIndex".
* \param descrIndex: The index of the service characteristic descriptor of type
* \ref cy_en_ble_ess_descr_index_t.
* \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_ESSS_GetCharacteristicDescriptor(cy_stc_ble_conn_handle_t connHandle,
cy_en_ble_ess_char_index_t charIndex,
uint8_t charInstance,
cy_en_ble_ess_descr_index_t descrIndex,
uint16_t attrSize,
uint8_t *attrValue)
{
cy_en_ble_api_result_t apiResult = CY_BLE_ERROR_INVALID_PARAMETER;
if((charIndex < CY_BLE_ESS_CHAR_COUNT) && (charInstance < cy_ble_esssConfigPtr->charInstances[charIndex]) &&
(descrIndex < CY_BLE_ESS_DESCR_COUNT))
{
/* Check whether requested descriptor is present in service.
* There are three conditions to be checked: 1) The pointer to
* "cy_stc_ble_esss_char_t" is not NULL, 2) The handle of the characteristic is
* a valid handle, 3) The handle of the descriptor is a valid handle.
*/
if((cy_ble_esssConfigPtr->attrInfo->charInfoAddr[charIndex].charInfoPtr != NULL) &&
(CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE !=
cy_ble_esssConfigPtr->attrInfo->charInfoAddr[charIndex].charInfoPtr[charInstance].charHandle) &&
(CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE !=
cy_ble_esssConfigPtr->attrInfo->charInfoAddr[charIndex].charInfoPtr[charInstance].descrHandle[descrIndex]))
{
cy_stc_ble_gatts_db_attr_val_info_t dbAttrValInfo;
dbAttrValInfo.handleValuePair.attrHandle = cy_ble_esssConfigPtr->attrInfo->charInfoAddr[charIndex].
charInfoPtr[charInstance].descrHandle[descrIndex];
dbAttrValInfo.handleValuePair.value.len = attrSize;
dbAttrValInfo.handleValuePair.value.val = attrValue;
dbAttrValInfo.connHandle = connHandle;
dbAttrValInfo.flags = CY_BLE_GATT_DB_LOCALLY_INITIATED;
dbAttrValInfo.offset = 0u;
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_ESSS_SendNotification
***************************************************************************//**
*
* Sends a notification with a characteristic value of the Environmental Sensing
* service, which is a value specified by charIndex, to the client's device.
*
* On enabling notification successfully for a service characteristic it sends out a
* 'Handle Value Notification' which results in \ref CY_BLE_EVT_ESSC_NOTIFICATION event
* at the GATT Client's end.
*
* \param connHandle: The connection handle.
* \param charIndex: The index of the service characteristic of type
* \ref cy_en_ble_ess_char_index_t.
* \param charInstance: The instance number of the characteristic specified by
* "charIndex".
* \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 | 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_ESSS_SendNotification(cy_stc_ble_conn_handle_t connHandle,
cy_en_ble_ess_char_index_t charIndex,
uint8_t charInstance,
uint8_t attrSize,
uint8_t *attrValue)
{
cy_en_ble_api_result_t apiResult = CY_BLE_ERROR_INVALID_PARAMETER;
if((charIndex < CY_BLE_ESS_CHAR_COUNT) && (charInstance < cy_ble_esssConfigPtr->charInstances[charIndex]))
{
if((cy_ble_esssConfigPtr->attrInfo->charInfoAddr[charIndex].charInfoPtr != NULL) &&
(CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE != cy_ble_esssConfigPtr->attrInfo->charInfoAddr[charIndex].
charInfoPtr[charInstance].descrHandle[CY_BLE_ESS_CCCD]))
{
/* 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_esssConfigPtr->attrInfo->charInfoAddr[charIndex].
charInfoPtr[charInstance].descrHandle[CY_BLE_ESS_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_esssConfigPtr->attrInfo->charInfoAddr[charIndex].
charInfoPtr[charInstance].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);
}
}
else
{
apiResult = CY_BLE_ERROR_GATT_DB_INVALID_ATTR_HANDLE;
}
}
return(apiResult);
}
/******************************************************************************
* Function Name: Cy_BLE_ESSS_SendIndication
***************************************************************************//**
*
* Sends an indication with a characteristic value of the Environmental Sensing
* 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 \ref CY_BLE_EVT_ESSC_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 the service characteristic of type
* \ref cy_en_ble_ess_char_index_t.
* \param charInstance: The instance number of the characteristic specified by
* "charIndex".
* \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 | 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 ESS service-specific callback is registered
* with \ref Cy_BLE_ESS_RegisterAttrCallback():
* * \ref CY_BLE_EVT_ESSS_INDICATION_CONFIRMED - In case if the indication is
* successfully delivered to the peer device.
* .
* Otherwise (if the ESS service-specific callback is not registered):
* * \ref 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_ESSS_SendIndication(cy_stc_ble_conn_handle_t connHandle,
cy_en_ble_ess_char_index_t charIndex,
uint8_t charInstance,
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_ESS_DESCRIPTOR_VALUE_CHANGED) &&
(charInstance < cy_ble_esssConfigPtr->charInstances[charIndex]))
{
/* 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_esssConfigPtr->attrInfo->charInfoAddr[charIndex].charInfoPtr[charInstance].
descrHandle[CY_BLE_ESS_CCCD]))
{
apiResult = CY_BLE_ERROR_IND_DISABLED;
}
else
{
if(CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE !=
cy_ble_esssConfigPtr->attrInfo->charInfoAddr[charIndex].charInfoPtr[charInstance].charHandle)
{
/* Fill all fields of Write Request structure ... */
cy_stc_ble_gatts_handle_value_ind_t indReqParam;
indReqParam.handleValPair.attrHandle = cy_ble_esssConfigPtr->attrInfo->charInfoAddr[charIndex].
charInfoPtr[charInstance].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_esssReqHandle = indReqParam.handleValPair.attrHandle;
}
}
else
{
apiResult = CY_BLE_ERROR_GATT_DB_INVALID_ATTR_HANDLE;
}
}
}
return(apiResult);
}
/******************************************************************************
* Function Name: Cy_BLE_ESSC_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_ESSC_DiscoverCharacteristicsEventHandler(const cy_stc_ble_disc_char_info_t *discCharInfo)
{
/* ESS characteristics UUIDs */
static const cy_ble_uuid16_t cy_ble_esscCharUuid[CY_BLE_ESS_CHAR_COUNT] =
{
CY_BLE_UUID_CHAR_DESCR_VALUE_CHANGED,
CY_BLE_UUID_CHAR_APPARENT_WIND_DIRECTION,
CY_BLE_UUID_CHAR_APPARENT_WIND_SPEED,
CY_BLE_UUID_CHAR_DEW_POINT,
CY_BLE_UUID_CHAR_ELEVATION,
CY_BLE_UUID_CHAR_GUST_FACTOR,
CY_BLE_UUID_CHAR_HEAT_INDEX,
CY_BLE_UUID_CHAR_HUMIDITY,
CY_BLE_UUID_CHAR_IRRADIANCE,
CY_BLE_UUID_CHAR_POLLEN_CONCENTRATION,
CY_BLE_UUID_CHAR_RAINFALL,
CY_BLE_UUID_CHAR_PRESSURE,
CY_BLE_UUID_CHAR_THEMPERATURE,
CY_BLE_UUID_CHAR_TRUE_WIND_DIRECTION,
CY_BLE_UUID_CHAR_TRUE_WIND_SPEED,
CY_BLE_UUID_CHAR_UV_INDEX,
CY_BLE_UUID_CHAR_WIND_CHILL,
CY_BLE_UUID_CHAR_BAR_PRESSURE_TREND,
CY_BLE_UUID_CHAR_MAGNETIC_DECLINATION,
CY_BLE_UUID_CHAR_MAGNETIC_FLUX_DENSITY_2D,
CY_BLE_UUID_CHAR_MAGNETIC_FLUX_DENSITY_3D
};
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 essDiscIdx = cy_ble_esscConfigPtr->serviceDiscIdx;
if((discCharInfo->uuidFormat == CY_BLE_GATT_16_BIT_UUID_FORMAT) &&
(cy_ble_configPtr->context->discovery[discIdx].servCount == essDiscIdx))
{
uint32_t i;
uint32_t exitLoop = 0u;
/* 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_ESS_DESCRIPTOR_VALUE_CHANGED; ((i < (uint32_t)CY_BLE_ESS_CHAR_COUNT) &&
(exitLoop == 0u)); i++)
{
uint32_t j;
for(j = 0u; j < cy_ble_esscConfigPtr->charInstances[i]; j++)
{
if( (cy_ble_esscCharUuid[i] == discCharInfo->uuid.uuid16) &&
(cy_ble_esscConfigPtr->attrInfo[discIdx].charInfoAddr[i].charInfoPtr != NULL) &&
(cy_ble_esscConfigPtr->attrInfo[discIdx].charInfoAddr[i].charInfoPtr[j].valueHandle ==
CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE) )
{
cy_ble_esscConfigPtr->attrInfo[discIdx].charInfoAddr[i].charInfoPtr[j].valueHandle =
discCharInfo->valueHandle;
cy_ble_esscConfigPtr->attrInfo[discIdx].charInfoAddr[i].charInfoPtr[j].properties =
discCharInfo->properties;
lastEndHandle[discIdx] = &cy_ble_esscConfigPtr->attrInfo[discIdx].charInfoAddr[i].
charInfoPtr[j].endHandle;
exitLoop = 1u;
break;
}
}
}
/* Initialize 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_ESSC_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_ESSC_DiscoverCharDescriptorsEventHandler(cy_stc_ble_disc_descr_info_t *discDescrInfo)
{
uint32_t notSupportedDescr = 0u;
uint32_t discIdx = Cy_BLE_GetDiscoveryIdx(discDescrInfo->connHandle);
uint32_t charIdx = cy_ble_configPtr->context->discovery[discIdx].charCount;
uint32_t charInst = activeCharInstance[discIdx];
uint32_t essDiscIdx = cy_ble_esscConfigPtr->serviceDiscIdx;
uint32_t descIdx;
if((cy_ble_configPtr->context->discovery[discIdx].servCount == essDiscIdx) &&
(cy_ble_esscConfigPtr->attrInfo[discIdx].charInfoAddr[charIdx].charInfoPtr != NULL))
{
switch(discDescrInfo->uuid.uuid16)
{
case CY_BLE_UUID_CHAR_CLIENT_CONFIG:
descIdx = (uint32_t)CY_BLE_ESS_CCCD;
break;
case CY_BLE_UUID_CHAR_VALID_RANGE:
descIdx = (uint32_t)CY_BLE_ESS_VRD;
break;
case CY_BLE_UUID_CHAR_USER_DESCRIPTION:
descIdx = (uint32_t)CY_BLE_ESS_CHAR_USER_DESCRIPTION_DESCR;
break;
case CY_BLE_UUID_CHAR_ES_CONFIGURATION:
descIdx = (uint32_t)CY_BLE_ESS_ES_CONFIG_DESCR;
break;
case CY_BLE_UUID_CHAR_EXTENDED_PROPERTIES:
descIdx = (uint32_t)CY_BLE_ESS_CHAR_EXTENDED_PROPERTIES;
break;
case CY_BLE_UUID_CHAR_ES_MEASUREMENT:
descIdx = (uint32_t)CY_BLE_ESS_ES_MEASUREMENT_DESCR;
break;
case CY_BLE_UUID_CHAR_ES_TRIGGER_SETTING:
if(cy_ble_esscConfigPtr->attrInfo[discIdx].charInfoAddr[charIdx].charInfoPtr[charInst].
descrHandle[CY_BLE_ESS_ES_TRIGGER_SETTINGS_DESCR1] == CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE)
{
descIdx = (uint32_t)CY_BLE_ESS_ES_TRIGGER_SETTINGS_DESCR1;
}
else if(cy_ble_esscConfigPtr->attrInfo[discIdx].charInfoAddr[charIdx].charInfoPtr[charInst].
descrHandle[CY_BLE_ESS_ES_TRIGGER_SETTINGS_DESCR2] == CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE)
{
descIdx = (uint32_t)CY_BLE_ESS_ES_TRIGGER_SETTINGS_DESCR2;
}
else
{
descIdx = (uint32_t)CY_BLE_ESS_ES_TRIGGER_SETTINGS_DESCR3;
}
break;
default:
/* Not supported descriptor */
notSupportedDescr = 1u;
break;
}
if(notSupportedDescr == 0u)
{
if(cy_ble_esscConfigPtr->attrInfo[discIdx].charInfoAddr[charIdx].charInfoPtr[charInst].descrHandle[descIdx] ==
CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE)
{
cy_ble_esscConfigPtr->attrInfo[discIdx].charInfoAddr[charIdx].charInfoPtr[charInst].descrHandle[descIdx] =
discDescrInfo->descrHandle;
}
else /* Duplication of 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_ESSC_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_ESSC_GetCharRange(cy_stc_ble_disc_range_info_t *charRangeInfo)
{
uint32_t discIdx = Cy_BLE_GetDiscoveryIdx(charRangeInfo->connHandle);
uint32_t essDiscIdx = cy_ble_esscConfigPtr->serviceDiscIdx;
uint32_t exitFlag = 0u;
if(cy_ble_configPtr->context->discovery[discIdx].servCount == essDiscIdx)
{
if(charRangeInfo->srviIncIdx == CY_BLE_DISCOVERY_INIT)
{
/* CY_BLE_DISCOVERY_INIT */
activeCharInstance[discIdx] = 0u;
}
else
{
/* CY_BLE_DISCOVERY_CONTINUE */
activeCharInstance[discIdx]++;
if(activeCharInstance[discIdx] ==
cy_ble_esscConfigPtr->charInstances[cy_ble_configPtr->context->discovery[discIdx].charCount])
{
cy_ble_configPtr->context->discovery[discIdx].charCount++;
activeCharInstance[discIdx] = 0u;
}
}
while((cy_ble_configPtr->context->discovery[discIdx].charCount < (uint32_t)CY_BLE_ESS_CHAR_COUNT) && (exitFlag == 0u))
{
uint32_t charIdx = cy_ble_configPtr->context->discovery[discIdx].charCount;
while((activeCharInstance[discIdx] < cy_ble_esscConfigPtr->charInstances[charIdx]) && (exitFlag == 0u))
{
uint32_t charInst = activeCharInstance[discIdx];
if((cy_ble_esscConfigPtr->attrInfo[discIdx].charInfoAddr[charIdx].charInfoPtr[charInst].valueHandle !=
CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE) &&
((cy_ble_esscConfigPtr->attrInfo[discIdx].charInfoAddr[charIdx].charInfoPtr[charInst].endHandle -
cy_ble_esscConfigPtr->attrInfo[discIdx].charInfoAddr[charIdx].charInfoPtr[charInst].valueHandle) != 0u))
{
charRangeInfo->range.startHandle =
cy_ble_esscConfigPtr->attrInfo[discIdx].charInfoAddr[charIdx].charInfoPtr[charInst].valueHandle + 1u;
charRangeInfo->range.endHandle =
cy_ble_esscConfigPtr->attrInfo[discIdx].charInfoAddr[charIdx].charInfoPtr[charInst].endHandle;
exitFlag = 1u;
}
else
{
activeCharInstance[discIdx]++;
}
}
if(exitFlag == 0u)
{
cy_ble_configPtr->context->discovery[discIdx].charCount++;
activeCharInstance[discIdx] = 0u;
}
}
/* Indicate that request was handled */
cy_ble_eventHandlerFlag &= (uint8_t) ~CY_BLE_CALLBACK;
}
}
/******************************************************************************
* Function Name: Cy_BLE_ESSC_NotificationEventHandler
***************************************************************************//**
*
* Handles a notification event for the Environmental Sensing service.
*
* \param eventParam: The pointer to the data structure specified by an event.
*
******************************************************************************/
static void Cy_BLE_ESSC_NotificationEventHandler(cy_stc_ble_gattc_handle_value_ntf_param_t *eventParam)
{
uint32_t j;
uint32_t exitLoop = 0u;
cy_en_ble_ess_char_index_t locCharIndex;
uint32_t discIdx = Cy_BLE_GetDiscoveryIdx(eventParam->connHandle);
if((discIdx < cy_ble_configPtr->params->maxClientCount) && (Cy_BLE_ESS_ApplCallback != NULL))
{
for(locCharIndex = (cy_en_ble_ess_char_index_t)0u; (locCharIndex < CY_BLE_ESS_CHAR_COUNT) &&
(exitLoop == 0u); locCharIndex++)
{
if(cy_ble_esscConfigPtr->attrInfo[discIdx].charInfoAddr[locCharIndex].charInfoPtr != NULL)
{
for(j = 0u; j < cy_ble_esscConfigPtr->charInstances[locCharIndex]; j++)
{
if(cy_ble_esscConfigPtr->attrInfo[discIdx].charInfoAddr[locCharIndex].charInfoPtr[j].valueHandle ==
eventParam->handleValPair.attrHandle)
{
cy_stc_ble_ess_char_value_t notifValue;
notifValue.connHandle = eventParam->connHandle;
notifValue.charIndex = locCharIndex;
notifValue.value = &eventParam->handleValPair.value;
Cy_BLE_ESS_ApplCallback((uint32_t)CY_BLE_EVT_ESSC_NOTIFICATION, &notifValue);
cy_ble_eventHandlerFlag &= (uint8_t) ~CY_BLE_CALLBACK;
exitLoop = 1u;
break;
}
}
}
}
}
}
/******************************************************************************
* Function Name: Cy_BLE_ESSC_IndicationEventHandler
***************************************************************************//**
*
* Handles an indication event for Environmental Sensing service.
*
* \param eventParam: The pointer to the data structure specified by an event.
*
******************************************************************************/
static void Cy_BLE_ESSC_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_ESS_ApplCallback != NULL))
{
if(cy_ble_esscConfigPtr->attrInfo[discIdx].charInfoAddr[CY_BLE_ESS_DESCRIPTOR_VALUE_CHANGED].
charInfoPtr[0u].valueHandle == eventParam->handleValPair.attrHandle)
{
cy_stc_ble_ess_char_value_t indicationValue;
indicationValue.connHandle = eventParam->connHandle;
indicationValue.charIndex = CY_BLE_ESS_DESCRIPTOR_VALUE_CHANGED;
indicationValue.value = &eventParam->handleValPair.value;
Cy_BLE_ESS_ApplCallback((uint32_t)CY_BLE_EVT_ESSC_INDICATION, &indicationValue);
cy_ble_eventHandlerFlag &= (uint8_t) ~CY_BLE_CALLBACK;
}
}
}
/******************************************************************************
* Function Name: Cy_BLE_ESSC_ReadLongRespEventHandler
***************************************************************************//**
*
* Handles a Read Long Response event for the Environmental Sensing service.
*
* \param eventParam: The pointer to the data structure specified by an event.
*
******************************************************************************/
static void Cy_BLE_ESSC_ReadLongRespEventHandler(const cy_stc_ble_gattc_read_rsp_param_t *eventParam)
{
cy_en_ble_ess_char_index_t locCharIndex;
uint32_t discIdx = Cy_BLE_GetDiscoveryIdx(eventParam->connHandle);
if((discIdx < cy_ble_configPtr->params->maxClientCount) && (Cy_BLE_ESS_ApplCallback != NULL))
{
/* Go trough all characteristics */
for(locCharIndex = CY_BLE_ESS_DESCRIPTOR_VALUE_CHANGED; locCharIndex < CY_BLE_ESS_CHAR_COUNT; locCharIndex++)
{
/* Check whether specific characteristic exist */
if(cy_ble_esscConfigPtr->attrInfo[discIdx].charInfoAddr[locCharIndex].charInfoPtr != NULL)
{
uint32_t j;
/* Go trough all characteristic instances */
for(j = 0u; j < cy_ble_esscConfigPtr->charInstances[locCharIndex]; j++)
{
/* Read Long Request is only supported for Characteristic User
* Description descriptor. Check whether requested handle equals
* the descriptor.
*/
if((cy_ble_esscReqHandle[discIdx] == cy_ble_esscConfigPtr->attrInfo[discIdx].charInfoAddr[locCharIndex].
charInfoPtr[j].descrHandle[CY_BLE_ESS_CHAR_USER_DESCRIPTION_DESCR]) &&
(cy_ble_esscReqHandle[discIdx] != CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE))
{
uint32_t i;
uint32_t isReqEnded = 0u;
cy_stc_ble_gatt_xchg_mtu_param_t mtuParam;
mtuParam.connHandle = eventParam->connHandle;
/* Update user buffer with received data */
for(i = 0u; (i < eventParam->value.len) && (cy_ble_esscCurrLen[discIdx] <
cy_ble_esscRdLongBuffLen[discIdx]); i++)
{
cy_ble_esscRdLongBuffPtr[discIdx][cy_ble_esscCurrLen[discIdx]] = eventParam->value.val[i];
cy_ble_esscCurrLen[discIdx]++;
}
(void)Cy_BLE_GATT_GetMtuSize(&mtuParam);
/* If the received data length is less than the MTU size, the Read Long
* request is completed or the provided user's buffer is full.
*/
if(((mtuParam.mtu - 1u) > eventParam->value.len))
{
cy_ble_esscReqHandle[discIdx] = CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE;
}
else if(cy_ble_esscCurrLen[discIdx] == cy_ble_esscRdLongBuffLen[discIdx])
{
cy_stc_ble_gattc_stop_cmd_param_t stopCmdParam = { .connHandle = eventParam->connHandle };
(void)Cy_BLE_GATTC_StopCmd(&stopCmdParam);
}
else
{
isReqEnded = 1u;
}
/* If the buffer is full, then stop any remaining read long requests */
if(isReqEnded == 0u)
{
cy_stc_ble_gatt_value_t rdValue =
{
.val = cy_ble_esscRdLongBuffPtr[discIdx],
.len = cy_ble_esscCurrLen[discIdx]
};
cy_stc_ble_ess_descr_value_t rdDescrValue =
{
.connHandle = eventParam->connHandle,
.charIndex = locCharIndex,
.charInstance = (uint8_t)j,
.descrIndex = CY_BLE_ESS_CHAR_USER_DESCRIPTION_DESCR
};
rdDescrValue.value = &rdValue;
Cy_BLE_ESS_ApplCallback((uint32_t)CY_BLE_EVT_ESSC_READ_DESCR_RESPONSE, &rdDescrValue);
}
cy_ble_eventHandlerFlag &= (uint8_t) ~CY_BLE_CALLBACK;
break;
}
}
}
}
}
}
/******************************************************************************
* Function Name: Cy_BLE_ESSC_ReadResponseEventHandler
***************************************************************************//**
*
* Handles a Read Response event for the Environmental Sensing service.
*
* \param eventParam: The pointer to the data structure specified by an event.
*
******************************************************************************/
static void Cy_BLE_ESSC_ReadResponseEventHandler(cy_stc_ble_gattc_read_rsp_param_t *eventParam)
{
uint32_t j;
uint32_t locReqHandle = 0u;
cy_en_ble_ess_char_index_t locCharIndex;
uint32_t discIdx = Cy_BLE_GetDiscoveryIdx(eventParam->connHandle);
if((discIdx < cy_ble_configPtr->params->maxClientCount) && (Cy_BLE_ESS_ApplCallback != NULL) &&
(cy_ble_esscReqHandle[discIdx] != CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE))
{
for(locCharIndex = CY_BLE_ESS_DESCRIPTOR_VALUE_CHANGED; (locCharIndex < CY_BLE_ESS_CHAR_COUNT) &&
(locReqHandle == 0u); locCharIndex++)
{
if(cy_ble_esscConfigPtr->attrInfo[discIdx].charInfoAddr[locCharIndex].charInfoPtr != NULL)
{
for(j = 0u; ((j < cy_ble_esscConfigPtr->charInstances[locCharIndex]) && (locReqHandle == 0u)); j++)
{
if(cy_ble_esscReqHandle[discIdx] ==
cy_ble_esscConfigPtr->attrInfo[discIdx].charInfoAddr[locCharIndex].charInfoPtr[j].valueHandle)
{
cy_stc_ble_ess_char_value_t locCharValue;
locCharValue.connHandle = eventParam->connHandle;
locCharValue.charIndex = locCharIndex;
locCharValue.charInstance = (uint8_t)j;
locCharValue.value = &eventParam->value;
cy_ble_esscReqHandle[discIdx] = CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE;
Cy_BLE_ESS_ApplCallback((uint32_t)CY_BLE_EVT_ESSC_READ_CHAR_RESPONSE, &locCharValue);
locReqHandle = 1u;
}
else
{
cy_en_ble_ess_descr_index_t locDescIndex;
for(locDescIndex = CY_BLE_ESS_CCCD; (locDescIndex < CY_BLE_ESS_DESCR_COUNT) &&
(locReqHandle == 0u); locDescIndex++)
{
if(cy_ble_esscReqHandle[discIdx] ==
cy_ble_esscConfigPtr->attrInfo[discIdx].charInfoAddr[locCharIndex].charInfoPtr[j].
descrHandle[locDescIndex])
{
cy_stc_ble_ess_descr_value_t locDescrValue;
locDescrValue.connHandle = eventParam->connHandle;
locDescrValue.charIndex = locCharIndex;
locDescrValue.descrIndex = locDescIndex;
locDescrValue.charInstance = (uint8_t)j;
locDescrValue.value = &eventParam->value;
cy_ble_esscReqHandle[discIdx] = CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE;
Cy_BLE_ESS_ApplCallback((uint32_t)CY_BLE_EVT_ESSC_READ_DESCR_RESPONSE, &locDescrValue);
locReqHandle = 1u;
}
}
}
}
}
}
if(locReqHandle != 0u)
{
cy_ble_eventHandlerFlag &= (uint8_t) ~CY_BLE_CALLBACK;
}
}
}
/******************************************************************************
* Function Name: Cy_BLE_ESSC_WriteResponseEventHandler
***************************************************************************//**
*
* Handles a Write Response event for the Environmental Sensing service.
*
* \param eventParam: The pointer to a data structure specified by an event.
*
******************************************************************************/
static void Cy_BLE_ESSC_WriteResponseEventHandler(const cy_stc_ble_conn_handle_t *eventParam)
{
uint8_t j;
uint32_t locReqHandle = 0u;
cy_en_ble_ess_char_index_t locCharIndex;
cy_stc_ble_ess_descr_value_t locDescrValue;
/* 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_ESS_ApplCallback != NULL) &&
(cy_ble_esscReqHandle[discIdx] != CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE))
{
for(locCharIndex = CY_BLE_ESS_DESCRIPTOR_VALUE_CHANGED; (locCharIndex < CY_BLE_ESS_CHAR_COUNT) &&
(locReqHandle == 0u); locCharIndex++)
{
/* If this condition is false, this means that the current characteristic
* is not included in the GUI, in other words support for the characteristic is
* not enabled.
*/
if(cy_ble_esscConfigPtr->attrInfo[discIdx].charInfoAddr[locCharIndex].charInfoPtr != NULL)
{
for(j = 0u; ((j < cy_ble_esscConfigPtr->charInstances[locCharIndex]) && (locReqHandle == 0u)); j++)
{
/* Check whether requested descriptor handle is in
* characteristic range.
*/
if((cy_ble_esscConfigPtr->attrInfo[discIdx].charInfoAddr[locCharIndex].charInfoPtr[j].valueHandle <
cy_ble_esscReqHandle[discIdx]) &&
(cy_ble_esscConfigPtr->attrInfo[discIdx].charInfoAddr[locCharIndex].charInfoPtr[j].endHandle >=
cy_ble_esscReqHandle[discIdx]))
{
if(cy_ble_esscReqHandle[discIdx] ==
cy_ble_esscConfigPtr->attrInfo[discIdx].charInfoAddr[locCharIndex].charInfoPtr[j].
descrHandle[CY_BLE_ESS_CCCD])
{
locDescrValue.descrIndex = CY_BLE_ESS_CCCD;
}
else
if(cy_ble_esscReqHandle[discIdx] ==
cy_ble_esscConfigPtr->attrInfo[discIdx].charInfoAddr[locCharIndex].charInfoPtr[j].
descrHandle[CY_BLE_ESS_ES_TRIGGER_SETTINGS_DESCR1])
{
locDescrValue.descrIndex = CY_BLE_ESS_ES_TRIGGER_SETTINGS_DESCR1;
}
else
if(cy_ble_esscReqHandle[discIdx] ==
cy_ble_esscConfigPtr->attrInfo[discIdx].charInfoAddr[locCharIndex].charInfoPtr[j].
descrHandle[CY_BLE_ESS_ES_TRIGGER_SETTINGS_DESCR2])
{
locDescrValue.descrIndex = CY_BLE_ESS_ES_TRIGGER_SETTINGS_DESCR2;
}
else if(cy_ble_esscReqHandle[discIdx] ==
cy_ble_esscConfigPtr->attrInfo[discIdx].charInfoAddr[locCharIndex].charInfoPtr[j].
descrHandle[CY_BLE_ESS_ES_TRIGGER_SETTINGS_DESCR3])
{
locDescrValue.descrIndex = CY_BLE_ESS_ES_TRIGGER_SETTINGS_DESCR3;
}
else if(cy_ble_esscReqHandle[discIdx] ==
cy_ble_esscConfigPtr->attrInfo[discIdx].charInfoAddr[locCharIndex].charInfoPtr[j].
descrHandle[CY_BLE_ESS_ES_CONFIG_DESCR])
{
locDescrValue.descrIndex = CY_BLE_ESS_ES_CONFIG_DESCR;
}
else if(cy_ble_esscReqHandle[discIdx] ==
cy_ble_esscConfigPtr->attrInfo[discIdx].charInfoAddr[locCharIndex].charInfoPtr[j].
descrHandle[CY_BLE_ESS_CHAR_USER_DESCRIPTION_DESCR])
{
locDescrValue.descrIndex = CY_BLE_ESS_CHAR_USER_DESCRIPTION_DESCR;
}
else
{
/* Should never enter here */
}
locDescrValue.connHandle = *eventParam;
locDescrValue.charIndex = locCharIndex;
locDescrValue.charInstance = j;
locDescrValue.value = NULL;
cy_ble_esscReqHandle[discIdx] = CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE;
Cy_BLE_ESS_ApplCallback((uint32_t)CY_BLE_EVT_ESSC_WRITE_DESCR_RESPONSE, &locDescrValue);
locReqHandle = 1u;
}
}
}
}
if(locReqHandle != 0u)
{
cy_ble_eventHandlerFlag &= (uint8_t) ~CY_BLE_CALLBACK;
}
}
}
/******************************************************************************
* Function Name: Cy_BLE_ESSC_ExecuteWriteResponseEventHandler
***************************************************************************//**
*
* Handles a Execute Write Response event for the Environmental Sensing service.
*
* \param eventParam: The pointer to a data structure specified by an event.
*
******************************************************************************/
static void Cy_BLE_ESSC_ExecuteWriteResponseEventHandler(const cy_stc_ble_gattc_exec_write_rsp_t *eventParam)
{
uint8_t j;
uint32_t locReqHandle = 0u;
cy_en_ble_ess_char_index_t locCharIndex;
cy_stc_ble_ess_descr_value_t locDescrValue;
/* Check whether service handler was registered and request handle is
* valid.
*/
uint32_t discIdx = Cy_BLE_GetDiscoveryIdx(eventParam->connHandle);
if((discIdx < cy_ble_configPtr->params->maxClientCount) && (Cy_BLE_ESS_ApplCallback != NULL) && (cy_ble_esscReqHandle[discIdx] !=
CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE))
{
for(locCharIndex = CY_BLE_ESS_DESCRIPTOR_VALUE_CHANGED; (locCharIndex < CY_BLE_ESS_CHAR_COUNT) &&
(locReqHandle == 0u); locCharIndex++)
{
/* If this condition is false, this means that the current characteristic
* is not included in the GUI, in other words the
* characteristic support is not enabled.
*/
if(cy_ble_esscConfigPtr->attrInfo[discIdx].charInfoAddr[locCharIndex].charInfoPtr != NULL)
{
for(j = 0u; ((j < cy_ble_esscConfigPtr->charInstances[locCharIndex]) && (locReqHandle == 0u)); j++)
{
if(cy_ble_esscReqHandle[discIdx] ==
cy_ble_esscConfigPtr->attrInfo[discIdx].charInfoAddr[locCharIndex].charInfoPtr[j].
descrHandle[CY_BLE_ESS_CHAR_USER_DESCRIPTION_DESCR])
{
locDescrValue.connHandle = eventParam->connHandle;
locDescrValue.charIndex = locCharIndex;
locDescrValue.charInstance = j;
locDescrValue.value = NULL;
locDescrValue.descrIndex = CY_BLE_ESS_CHAR_USER_DESCRIPTION_DESCR;
cy_ble_esscReqHandle[discIdx] = CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE;
Cy_BLE_ESS_ApplCallback((uint32_t)CY_BLE_EVT_ESSC_WRITE_DESCR_RESPONSE, &locDescrValue);
locReqHandle = 1u;
}
}
}
}
if(locReqHandle != 0u)
{
cy_ble_eventHandlerFlag &= (uint8_t) ~CY_BLE_CALLBACK;
}
}
}
/******************************************************************************
* Function Name: Cy_BLE_ESSC_ErrorResponseEventHandler
***************************************************************************//**
*
* Handles an Error Response event for the Environmental Sensing service.
*
* \param eventParam: The pointer to a data structure specified by an event.
*
******************************************************************************/
static void Cy_BLE_ESSC_ErrorResponseEventHandler(const cy_stc_ble_gatt_err_param_t *eventParam)
{
if(eventParam != NULL)
{
uint32_t discIdx = Cy_BLE_GetDiscoveryIdx(eventParam->connHandle);
if(cy_ble_esscReqHandle[discIdx] == eventParam->errInfo.attrHandle)
{
cy_ble_esscReqHandle[discIdx] = CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE;
}
}
}
/******************************************************************************
* Function Name: Cy_BLE_ESSC_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 \ref CY_BLE_EVT_ESSS_WRITE_CHAR event is generated.
* On successful request execution on the server side, the Write Response is
* sent to the client.
*
* \param connHandle: The connection handle.
* \param charIndex: The index of the service characteristic of type
* \ref cy_en_ble_ess_char_index_t.
* \param charInstance: The instance number of the characteristic specified by
* "charIndex".
* \param attrSize: The size of the characteristic value attribute.
* \param attrValue: The pointer to the characteristic value data that
* should be sent to the server device.
*
*
* \return
* A return value of type \ref cy_en_ble_api_result_t.
*
* Error Codes | Description
* ------------ | -----------
* CY_BLE_SUCCESS | The request was sent successfully.
* CY_BLE_ERROR_INVALID_PARAMETER | Validation of the input parameter failed.
* CY_BLE_ERROR_INVALID_OPERATION | Operation is invalid for this characteristic.
* CY_BLE_ERROR_GATT_DB_INVALID_ATTR_HANDLE | The peer device doesn't have the particular characteristic.
* CY_BLE_ERROR_INVALID_STATE | Connection with the server is not established.
* CY_BLE_ERROR_MEMORY_ALLOCATION_FAILED | Memory allocation failed.
* 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 = \ref CY_BLE_SUCCESS)
* the following events can appear: \n
* If the ESS service-specific callback is registered
* with \ref Cy_BLE_ESS_RegisterAttrCallback():
* * \ref CY_BLE_EVT_ESSC_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 \ref cy_stc_ble_ess_char_value_t.
* .
* Otherwise (if the ESS service-specific callback is not registered):
* * \ref CY_BLE_EVT_GATTC_WRITE_RSP - In case if the requested attribute is
* successfully written on the peer device.
* * \ref CY_BLE_EVT_GATTC_ERROR_RSP - In case if an error occurred with the
* requested attribute on the peer device, the details are provided with
* event parameters structure \ref cy_stc_ble_gatt_err_param_t.
*
******************************************************************************/
cy_en_ble_api_result_t Cy_BLE_ESSC_SetCharacteristicValue(cy_stc_ble_conn_handle_t connHandle,
cy_en_ble_ess_char_index_t charIndex,
uint8_t charInstance,
uint8_t attrSize,
uint8_t * attrValue)
{
cy_en_ble_api_result_t apiResult;
uint32_t discIdx = Cy_BLE_GetDiscoveryIdx(connHandle);
if(Cy_BLE_GetConnectionState(connHandle) != CY_BLE_CONN_STATE_CLIENT_DISCOVERED)
{
apiResult = CY_BLE_ERROR_INVALID_STATE;
}
else if((charIndex >= CY_BLE_ESS_CHAR_COUNT) || (discIdx >= cy_ble_configPtr->params->maxClientCount))
{
apiResult = CY_BLE_ERROR_INVALID_PARAMETER;
}
else if(charInstance >= cy_ble_esscConfigPtr->charInstances[charIndex])
{
apiResult = CY_BLE_ERROR_INVALID_PARAMETER;
}
else if(CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE !=
cy_ble_esscConfigPtr->attrInfo[discIdx].charInfoAddr[charIndex].charInfoPtr[charInstance].valueHandle)
{
cy_stc_ble_gattc_write_req_t writeReqParam;
writeReqParam.handleValPair.attrHandle = cy_ble_esscConfigPtr->attrInfo[discIdx].charInfoAddr[charIndex].
charInfoPtr[charInstance].valueHandle;
writeReqParam.handleValPair.value.val = attrValue;
writeReqParam.handleValPair.value.len = attrSize;
writeReqParam.connHandle = connHandle;
apiResult = Cy_BLE_GATTC_WriteCharacteristicValue(&writeReqParam);
/* Save handle to support service-specific Write Response from device */
if(apiResult == CY_BLE_SUCCESS)
{
cy_ble_esscReqHandle[discIdx] = writeReqParam.handleValPair.attrHandle;
}
}
else
{
apiResult = CY_BLE_ERROR_GATT_DB_INVALID_ATTR_HANDLE;
}
return(apiResult);
}
/******************************************************************************
* Function Name: Cy_BLE_ESSC_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 of type
* \ref cy_en_ble_ess_char_index_t.
* \param charInstance: The instance number of the characteristic specified by
* "charIndex".
*
* \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 | An optional characteristic is absent.
*
* \events
* In case of successful execution (return value = \ref CY_BLE_SUCCESS)
* the following events can appear: \n
* If the ESS service-specific callback is registered
* with \ref Cy_BLE_ESS_RegisterAttrCallback():
* * \ref CY_BLE_EVT_ESSC_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 \ref cy_stc_ble_ess_char_value_t.
* .
* Otherwise (if the ESS service-specific callback is not registered):
* * \ref 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 \ref cy_stc_ble_gattc_read_rsp_param_t.
* * \ref CY_BLE_EVT_GATTC_ERROR_RSP - In case if an error occurred with the
* requested attribute on the peer device, the details are provided with
* event parameters structure \ref cy_stc_ble_gatt_err_param_t.
*
******************************************************************************/
cy_en_ble_api_result_t Cy_BLE_ESSC_GetCharacteristicValue(cy_stc_ble_conn_handle_t connHandle,
cy_en_ble_ess_char_index_t charIndex,
uint8_t charInstance)
{
cy_en_ble_api_result_t apiResult;
uint32_t discIdx = Cy_BLE_GetDiscoveryIdx(connHandle);
if(Cy_BLE_GetConnectionState(connHandle) != CY_BLE_CONN_STATE_CLIENT_DISCOVERED)
{
apiResult = CY_BLE_ERROR_INVALID_STATE;
}
else if((charIndex >= CY_BLE_ESS_CHAR_COUNT) || (discIdx >= cy_ble_configPtr->params->maxClientCount))
{
apiResult = CY_BLE_ERROR_INVALID_PARAMETER;
}
else if(charInstance >= cy_ble_esscConfigPtr->charInstances[charIndex])
{
apiResult = CY_BLE_ERROR_INVALID_PARAMETER;
}
else if(CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE !=
cy_ble_esscConfigPtr->attrInfo[discIdx].charInfoAddr[charIndex].charInfoPtr[charInstance].valueHandle)
{
cy_stc_ble_gattc_read_req_t readReqParam;
readReqParam.attrHandle =
cy_ble_esscConfigPtr->attrInfo[discIdx].charInfoAddr[charIndex].charInfoPtr[charInstance].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_esscReqHandle[discIdx] =
cy_ble_esscConfigPtr->attrInfo[discIdx].charInfoAddr[charIndex].charInfoPtr[charInstance].valueHandle;
}
}
else
{
apiResult = CY_BLE_ERROR_GATT_DB_INVALID_ATTR_HANDLE;
}
return(apiResult);
}
/******************************************************************************
* Function Name: Cy_BLE_ESSC_SetCharacteristicDescriptor
***************************************************************************//**
*
* 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_ESSS_DESCR_WRITE event is generated.
* On successful request execution on the server side, the Write Response is
* sent to the client.
*
* 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:
* * \ref CY_BLE_EVT_ESSS_NOTIFICATION_ENABLED
* * \ref CY_BLE_EVT_ESSS_NOTIFICATION_DISABLED
* * \ref CY_BLE_EVT_ESSS_INDICATION_ENABLED
* * \ref CY_BLE_EVT_ESSS_INDICATION_DISABLED
*
* \param connHandle: The connection handle.
* \param charIndex: The index of the service characteristic of type
* \ref cy_en_ble_ess_char_index_t.
* \param charInstance: The instance number of the characteristic specified by
* "charIndex".
* \param descrIndex: The index of the service characteristic descriptor of type
* \ref cy_en_ble_ess_descr_index_t.
* \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 = \ref CY_BLE_SUCCESS)
* the following events can appear: \n
* If the ESS service-specific callback is registered
* with \ref Cy_BLE_ESS_RegisterAttrCallback():
* * \ref CY_BLE_EVT_ESSC_WRITE_DESCR_RESPONSE - In case if the requested attribute is
* successfully written on the peer device, the details (charIndex, descr
* index etc.) are provided with event parameter structure
* of type \ref cy_stc_ble_ess_descr_value_t.
* .
* Otherwise (if the ESS service-specific callback is not registered):
* * \ref CY_BLE_EVT_GATTC_WRITE_RSP - In case if the requested attribute is
* successfully written on the peer device.
* * \ref CY_BLE_EVT_GATTC_ERROR_RSP - In case if an error occurred with the
* requested attribute on the peer device, the details are provided with
* event parameters structure \ref cy_stc_ble_gatt_err_param_t.
*
******************************************************************************/
cy_en_ble_api_result_t Cy_BLE_ESSC_SetCharacteristicDescriptor(cy_stc_ble_conn_handle_t connHandle,
cy_en_ble_ess_char_index_t charIndex,
uint8_t charInstance,
cy_en_ble_ess_descr_index_t descrIndex,
uint8_t attrSize,
uint8_t *attrValue)
{
cy_en_ble_api_result_t apiResult;
uint32_t discIdx = Cy_BLE_GetDiscoveryIdx(connHandle);
if(Cy_BLE_GetConnectionState(connHandle) != CY_BLE_CONN_STATE_CLIENT_DISCOVERED)
{
apiResult = CY_BLE_ERROR_INVALID_STATE;
}
else if((charIndex >= CY_BLE_ESS_CHAR_COUNT) || (descrIndex >= CY_BLE_ESS_DESCR_COUNT) ||
(charInstance >= cy_ble_esscConfigPtr->charInstances[charIndex]) ||
(discIdx >= cy_ble_configPtr->params->maxClientCount))
{
apiResult = CY_BLE_ERROR_INVALID_PARAMETER;
}
else if((descrIndex == CY_BLE_ESS_VRD) || (descrIndex == CY_BLE_ESS_ES_MEASUREMENT_DESCR))
{
apiResult = CY_BLE_ERROR_INVALID_OPERATION;
}
else if(cy_ble_esscConfigPtr->attrInfo[discIdx].charInfoAddr[charIndex].charInfoPtr[charInstance].descrHandle[descrIndex] ==
CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE)
{
apiResult = CY_BLE_ERROR_GATT_DB_INVALID_ATTR_HANDLE;
}
else
{
/* Fill all fields of Write Request structure ... */
cy_stc_ble_gattc_write_req_t writeReqParam;
writeReqParam.handleValPair.attrHandle = cy_ble_esscConfigPtr->attrInfo[discIdx].charInfoAddr[charIndex].
charInfoPtr[charInstance].descrHandle[descrIndex];
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_esscReqHandle[discIdx] = writeReqParam.handleValPair.attrHandle;
}
}
return(apiResult);
}
/******************************************************************************
* Function Name: Cy_BLE_ESSC_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 of type
* \ref cy_en_ble_ess_char_index_t.
* \param charInstance: The instance number of the characteristic specified by
* "charIndex".
* \param descrIndex: The index of the service characteristic descriptor of type
* \ref cy_en_ble_ess_descr_index_t.
*
* \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 | An optional characteristic descriptor is absent.
*
* \events
* In case of successful execution (return value = \ref CY_BLE_SUCCESS)
* the following events can appear: \n
* If the ESS service-specific callback is registered
* with \ref Cy_BLE_ESS_RegisterAttrCallback():
* * \ref CY_BLE_EVT_ESSC_READ_DESCR_RESPONSE - In case if the requested attribute is
* successfully read on the peer device, the details (charIndex, descrIndex,
* value, etc.) are provided with event parameter structure
* of type \ref cy_stc_ble_ess_descr_value_t.
* .
* Otherwise (if the ESS service-specific callback is not registered):
* * \ref 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 \ref cy_stc_ble_gattc_read_rsp_param_t.
* * \ref CY_BLE_EVT_GATTC_ERROR_RSP - In case if an error occurred with the
* requested attribute on the peer device, the details are provided with
* event parameters structure \ref cy_stc_ble_gatt_err_param_t.
*
******************************************************************************/
cy_en_ble_api_result_t Cy_BLE_ESSC_GetCharacteristicDescriptor(cy_stc_ble_conn_handle_t connHandle,
cy_en_ble_ess_char_index_t charIndex,
uint8_t charInstance,
cy_en_ble_ess_descr_index_t descrIndex)
{
cy_en_ble_api_result_t apiResult;
uint32_t discIdx = Cy_BLE_GetDiscoveryIdx(connHandle);
if(Cy_BLE_GetConnectionState(connHandle) != CY_BLE_CONN_STATE_CLIENT_DISCOVERED)
{
apiResult = CY_BLE_ERROR_INVALID_STATE;
}
else if((charIndex >= CY_BLE_ESS_CHAR_COUNT) || (descrIndex >= CY_BLE_ESS_DESCR_COUNT) ||
(charInstance >= cy_ble_esscConfigPtr->charInstances[charIndex]) ||
(discIdx >= cy_ble_configPtr->params->maxClientCount))
{
apiResult = CY_BLE_ERROR_INVALID_PARAMETER;
}
else if(cy_ble_esscConfigPtr->attrInfo[discIdx].charInfoAddr[charIndex].charInfoPtr[charInstance].descrHandle[descrIndex] ==
CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE)
{
apiResult = CY_BLE_ERROR_GATT_DB_INVALID_ATTR_HANDLE;
}
else
{
cy_stc_ble_gattc_read_req_t readReqParam;
readReqParam.attrHandle = cy_ble_esscConfigPtr->attrInfo[discIdx].charInfoAddr[charIndex].charInfoPtr[charInstance].
descrHandle[descrIndex];
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_esscReqHandle[discIdx] = cy_ble_esscConfigPtr->attrInfo[discIdx].charInfoAddr[charIndex].
charInfoPtr[charInstance].descrHandle[descrIndex];
}
}
return(apiResult);
}
/******************************************************************************
* Function Name: Cy_BLE_ESSC_SetLongCharacteristicDescriptor
***************************************************************************//**
*
* This function is used to write a long characteristic descriptor to the server,
* which is identified by charIndex and descrIndex.
*
* \param connHandle: The connection handle.
* \param charIndex: The index of the service characteristic of type
* \ref cy_en_ble_ess_char_index_t.
* \param charInstance: The instance number of the characteristic specified by
* "charIndex".
* \param descrIndex: The index of the service characteristic descriptor of type
* \ref cy_en_ble_ess_descr_index_t.
* \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 | 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 | An optional characteristic descriptor is absent.
*
* \events
* In case of successful execution (return value = \ref CY_BLE_SUCCESS)
* the following events can appear: \n
* If the ESS service-specific callback is registered
* with \ref Cy_BLE_ESS_RegisterAttrCallback():
* * \ref CY_BLE_EVT_ESSC_WRITE_DESCR_RESPONSE - In case 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_ess_descr_value_t.
* .
* Otherwise (if the ESS service-specific callback is not registered):
* * \ref CY_BLE_EVT_GATTC_WRITE_RSP - In case if the requested attribute is
* successfully written on the peer device.
* * \ref CY_BLE_EVT_GATTC_ERROR_RSP - In case if an error occurred with the
* requested attribute on the peer device, the details are provided with
* event parameters structure \ref cy_stc_ble_gatt_err_param_t.
*
******************************************************************************/
cy_en_ble_api_result_t Cy_BLE_ESSC_SetLongCharacteristicDescriptor(cy_stc_ble_conn_handle_t connHandle,
cy_en_ble_ess_char_index_t charIndex,
uint8_t charInstance,
cy_en_ble_ess_descr_index_t descrIndex,
uint16_t attrSize,
uint8_t *attrValue)
{
cy_en_ble_api_result_t apiResult;
uint32_t discIdx = Cy_BLE_GetDiscoveryIdx(connHandle);
if(Cy_BLE_GetConnectionState(connHandle) != CY_BLE_CONN_STATE_CLIENT_DISCOVERED)
{
apiResult = CY_BLE_ERROR_INVALID_STATE;
}
else if((charIndex >= CY_BLE_ESS_CHAR_COUNT) || (descrIndex >= CY_BLE_ESS_DESCR_COUNT) ||
(discIdx >= cy_ble_configPtr->params->maxClientCount))
{
apiResult = CY_BLE_ERROR_INVALID_PARAMETER;
}
else if(cy_ble_esscConfigPtr->attrInfo[discIdx].charInfoAddr[charIndex].charInfoPtr[charInstance].descrHandle[descrIndex] ==
CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE)
{
apiResult = CY_BLE_ERROR_GATT_DB_INVALID_ATTR_HANDLE;
}
else if(descrIndex == CY_BLE_ESS_CHAR_USER_DESCRIPTION_DESCR)
{
/* Fill all fields of Write Request structure ... */
cy_stc_ble_gattc_prep_write_req_t writeReqParam;
writeReqParam.handleValOffsetPair.handleValuePair.attrHandle = cy_ble_esscConfigPtr->attrInfo[discIdx].charInfoAddr[charIndex].
charInfoPtr[charInstance].descrHandle[descrIndex];
writeReqParam.handleValOffsetPair.handleValuePair.value.val = attrValue;
writeReqParam.handleValOffsetPair.handleValuePair.value.len = attrSize;
writeReqParam.handleValOffsetPair.offset = 0u;
writeReqParam.connHandle = connHandle;
/* ... and send request to server's device. */
apiResult = Cy_BLE_GATTC_WriteLongCharacteristicValues(&writeReqParam);
/* Save handle to support service-specific read response from device */
if(apiResult == CY_BLE_SUCCESS)
{
cy_ble_esscReqHandle[discIdx] = writeReqParam.handleValOffsetPair.handleValuePair.attrHandle;
}
}
else
{
apiResult = CY_BLE_ERROR_INVALID_OPERATION;
}
return(apiResult);
}
/******************************************************************************
* Function Name: Cy_BLE_ESSC_GetLongCharacteristicDescriptor
***************************************************************************//**
*
* Sends a request to read long characteristic descriptor of the specified
* characteristic of the service.
*
* \param connHandle: The connection handle.
* \param charIndex: The index of the service characteristic of type
* \ref cy_en_ble_ess_char_index_t.
* \param charInstance: The instance number of the characteristic specified by
* "charIndex".
* \param descrIndex: The index of the service characteristic descriptor of type
* \ref cy_en_ble_ess_descr_index_t.
* \param attrSize: The size of the characteristic value attribute.
* \param attrValue: The pointer to the buffer where the read long characteristic
* descriptor value should be stored.
*
* \return
* A return value of type \ref cy_en_ble_api_result_t.
*
* Error Codes | Description
* ------------ | -----------
* CY_BLE_SUCCESS | The 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 | An optional characteristic descriptor is absent.
*
* \events
* In case of successful execution (return value = \ref CY_BLE_SUCCESS)
* the following events can appear: \n
* If the ESS service-specific callback is registered
* with \ref Cy_BLE_ESS_RegisterAttrCallback():
* * \ref CY_BLE_EVT_ESSC_READ_DESCR_RESPONSE - In case if the requested attribute is
* successfully read on the peer device, the details (charIndex, descrIndex,
* value, etc.) are provided with event parameter structure
* of type cy_stc_ble_ess_descr_value_t.
* .
* Otherwise (if the ESS service-specific callback is not registered):
* * \ref 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).
* * \ref CY_BLE_EVT_GATTC_ERROR_RSP - In case if an error occurred with the
* requested attribute on the peer device, the details are provided with
* event parameters structure \ref cy_stc_ble_gatt_err_param_t.
*
******************************************************************************/
cy_en_ble_api_result_t Cy_BLE_ESSC_GetLongCharacteristicDescriptor(cy_stc_ble_conn_handle_t connHandle,
cy_en_ble_ess_char_index_t charIndex,
uint8_t charInstance,
cy_en_ble_ess_descr_index_t descrIndex,
uint16_t attrSize,
uint8_t *attrValue)
{
cy_en_ble_api_result_t apiResult;
uint32_t discIdx = Cy_BLE_GetDiscoveryIdx(connHandle);
if(Cy_BLE_GetConnectionState(connHandle) != CY_BLE_CONN_STATE_CLIENT_DISCOVERED)
{
apiResult = CY_BLE_ERROR_INVALID_STATE;
}
else if((charIndex >= CY_BLE_ESS_CHAR_COUNT) || (descrIndex >= CY_BLE_ESS_DESCR_COUNT) ||
(discIdx >= cy_ble_configPtr->params->maxClientCount))
{
apiResult = CY_BLE_ERROR_INVALID_PARAMETER;
}
else if(cy_ble_esscConfigPtr->attrInfo[discIdx].charInfoAddr[charIndex].
charInfoPtr[charInstance].descrHandle[descrIndex] == CY_BLE_GATT_INVALID_ATTR_HANDLE_VALUE)
{
apiResult = CY_BLE_ERROR_GATT_DB_INVALID_ATTR_HANDLE;
}
else
{
cy_stc_ble_gattc_read_blob_req_t readLongdata;
readLongdata.handleOffset.offset = 0u;
readLongdata.handleOffset.attrHandle = cy_ble_esscConfigPtr->attrInfo[discIdx].charInfoAddr[charIndex].
charInfoPtr[charInstance].descrHandle[descrIndex];
readLongdata.connHandle = connHandle;
cy_ble_esscRdLongBuffLen[discIdx] = (uint32_t)attrSize;
cy_ble_esscRdLongBuffPtr[discIdx] = attrValue;
apiResult = Cy_BLE_GATTC_ReadLongCharacteristicDescriptors(&readLongdata);
/* Save handle to support service-specific read response from device */
if(apiResult == CY_BLE_SUCCESS)
{
cy_ble_esscReqHandle[discIdx] = readLongdata.handleOffset.attrHandle;
}
}
return(apiResult);
}
/******************************************************************************
* Function Name: Cy_BLE_ESS_EventHandler
***************************************************************************//**
*
* Handles the events from the BLE Stack for the ESS 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_ESS_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_ESSS_EventHandlerCallback != NULL)
{
gattErr = Cy_BLE_ESSS_EventHandlerCallback(eventCode, eventParam);
}
/************************************
* Handling GATT Client events
***********************************/
if(Cy_BLE_ESSC_EventHandlerCallback != NULL)
{
(void)Cy_BLE_ESSC_EventHandlerCallback(eventCode, eventParam);
}
return(gattErr);
}
/******************************************************************************
* Function Name: Cy_BLE_ESSS_EventHandler
***************************************************************************//**
*
* Handles the server events from the BLE Stack for the ESS 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_ESSS_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_ESSS_WriteEventHandler((cy_stc_ble_gatts_write_cmd_req_param_t*)eventParam);
break;
case CY_BLE_EVT_GATTS_HANDLE_VALUE_CNF:
Cy_BLE_ESSS_ConfirmationEventHandler((cy_stc_ble_conn_handle_t*)eventParam);
break;
case CY_BLE_EVT_GATTS_PREP_WRITE_REQ:
Cy_BLE_ESSS_PrepareWriteRequestEventHandler((cy_stc_ble_gatts_prep_write_req_param_t*)eventParam);
break;
case CY_BLE_EVT_GATTS_EXEC_WRITE_REQ:
Cy_BLE_ESSS_ExecuteWriteRequestEventHandler((cy_stc_ble_gatts_exec_write_req_t*)eventParam);
break;
default:
break;
}
return (gattErr);
}
/******************************************************************************
* Function Name: Cy_BLE_ESSSC_EventHandler
***************************************************************************//**
*
* Handles the client events from the BLE Stack for the ESS 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_ESSC_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_ESSC_DiscoverCharacteristicsEventHandler((cy_stc_ble_disc_char_info_t*)eventParam);
break;
case CY_BLE_EVT_GATTC_DISC_DESCR:
Cy_BLE_ESSC_DiscoverCharDescriptorsEventHandler((cy_stc_ble_disc_descr_info_t*)eventParam);
break;
case CY_BLE_EVT_GATTC_DISC_DESCR_GET_RANGE:
Cy_BLE_ESSC_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_ESSC_ErrorResponseEventHandler((cy_stc_ble_gatt_err_param_t*)eventParam);
}
}
break;
case CY_BLE_EVT_GATTC_HANDLE_VALUE_NTF:
Cy_BLE_ESSC_NotificationEventHandler((cy_stc_ble_gattc_handle_value_ntf_param_t*)eventParam);
break;
case CY_BLE_EVT_GATTC_HANDLE_VALUE_IND:
Cy_BLE_ESSC_IndicationEventHandler((cy_stc_ble_gattc_handle_value_ind_param_t*)eventParam);
break;
case CY_BLE_EVT_GATTC_READ_RSP:
Cy_BLE_ESSC_ReadResponseEventHandler((cy_stc_ble_gattc_read_rsp_param_t*)eventParam);
break;
case CY_BLE_EVT_GATTC_WRITE_RSP:
Cy_BLE_ESSC_WriteResponseEventHandler((cy_stc_ble_conn_handle_t*)eventParam);
break;
case CY_BLE_EVT_GATTC_READ_BLOB_RSP:
Cy_BLE_ESSC_ReadLongRespEventHandler((cy_stc_ble_gattc_read_rsp_param_t*)eventParam);
break;
case CY_BLE_EVT_GATTC_EXEC_WRITE_RSP:
Cy_BLE_ESSC_ExecuteWriteResponseEventHandler((cy_stc_ble_gattc_exec_write_rsp_t*)eventParam);
break;
default:
break;
}
}
return(gattErr);
}
#endif /* CY_BLE_LIB_HOST_CORE */
#endif /* CY_IP_MXBLESS */
/* [] END OF FILE */