/* negative return error code if an error occurs. */
int BTPSAPI TPS_Query_Tx_Power_Level(unsigned int BluetoothStackID, unsigned int InstanceID, SByte_t *Tx_Power_Level)
{
int ret_val;
TPSServerInstance_t *ServiceInstance;
/* Make sure the parameters passed to us are semi-valid. */
if((BluetoothStackID) && (InstanceID) && (Tx_Power_Level))
{
/* Acquire the specified TPS Instance. */
if((ServiceInstance = AcquireServiceInstance(BluetoothStackID, &InstanceID)) != NULL)
{
/* Query the current Tx Power Level. */
*Tx_Power_Level = READ_UNALIGNED_BYTE_LITTLE_ENDIAN(&(InstanceData[InstanceID-1].Tx_Power_Level));
/* Return success to the caller. */
ret_val = 0;
/* UnLock the previously locked Bluetooth Stack. */
BSC_UnLockBluetoothStack(ServiceInstance->BluetoothStackID);
}
else
ret_val = TPS_ERROR_INVALID_INSTANCE_ID;
}
else
ret_val = TPS_ERROR_INVALID_PARAMETER;
/* Finally return the result to the caller. */
return(ret_val);
}
/* function returns the zero if successful or a negative error code. */
static int DecodeAlertLevel(unsigned int InstanceID, unsigned int BufferLength, Byte_t *Buffer, Byte_t *AlertLevel)
{
int ret_val = LLS_ERROR_MALFORMATTED_DATA;
/* Verify that the input parameters are valid. */
if((BufferLength == LLS_ALERT_LEVEL_LENGTH) && (Buffer) && (AlertLevel))
{
/* Read the requested Alert Level. */
*AlertLevel = READ_UNALIGNED_BYTE_LITTLE_ENDIAN(Buffer);
/* Assign the Alert Level into the Instance Data. */
ASSIGN_HOST_BYTE_TO_LITTLE_ENDIAN_UNALIGNED_BYTE(&(InstanceData[InstanceID-1].Alert_Level), *AlertLevel);
ret_val = 0;
}
else
{
if(BufferLength == LLS_ALERT_LEVEL_LENGTH)
ret_val = LLS_ERROR_INVALID_PARAMETER;
}
/* Finally return the result to the caller. */
return(ret_val);
}
/* instances. */
static void BTPSAPI GATT_ServerEventCallback(unsigned int BluetoothStackID, GATT_Server_Event_Data_t *GATT_ServerEventData, unsigned long CallbackParameter)
{
Word_t AttributeOffset;
Word_t ValueLength;
Byte_t Event_Buffer[IAS_EVENT_DATA_SIZE + IAS_EVENT_DATA_BUFFER_SIZE];
unsigned int TransactionID;
unsigned int InstanceID;
IAS_Event_Data_t *EventData;
IASServerInstance_t *ServiceInstance;
/* Verify that all parameters to this callback are Semi-Valid. */
if((BluetoothStackID) && (GATT_ServerEventData) && (CallbackParameter))
{
/* The Instance ID is always registered as the callback parameter.*/
InstanceID = (unsigned int)CallbackParameter;
/* Acquire the Service Instance for the specified service. */
if((ServiceInstance = AcquireServiceInstance(BluetoothStackID, &InstanceID)) != NULL)
{
switch(GATT_ServerEventData->Event_Data_Type)
{
case etGATT_Server_Write_Request:
/* Verify that the Event Data is valid. */
if(GATT_ServerEventData->Event_Data.GATT_Write_Request_Data)
{
/* Store the needed members for use later. */
AttributeOffset = GATT_ServerEventData->Event_Data.GATT_Write_Request_Data->AttributeOffset;
TransactionID = GATT_ServerEventData->Event_Data.GATT_Write_Request_Data->TransactionID;
ValueLength = GATT_ServerEventData->Event_Data.GATT_Write_Request_Data->AttributeValueLength;
/* Verify that the parameters look correct. */
if((ValueLength == IAS_ALERT_LEVEL_CONTROL_POINT_VALUE_LENGTH) && (!(GATT_ServerEventData->Event_Data.GATT_Write_Request_Data->AttributeValueOffset)) && (!(GATT_ServerEventData->Event_Data.GATT_Write_Request_Data->DelayWrite)))
{
/* IAS defines that the Write Without Response */
/* procedure is used to write to this attribute, */
/* therefore we will just accept the write request */
/* here to allow GATT to clean up the resources. */
GATT_Write_Response(BluetoothStackID, TransactionID);
/* Format and Dispatch the event. */
EventData = FormatEventHeader(sizeof(Event_Buffer), Event_Buffer, etIAS_Server_Alert_Level_Control_Point_Command, InstanceID, GATT_ServerEventData->Event_Data.GATT_Write_Request_Data->ConnectionID, GATT_ServerEventData->Event_Data.GATT_Write_Request_Data->ConnectionType, &(GATT_ServerEventData->Event_Data.GATT_Write_Request_Data->RemoteDevice));
if(EventData)
{
/* Format the rest of the event. */
EventData->Event_Data_Size = IAS_ALERT_LEVEL_CONTROL_POINT_COMMAND_DATA_SIZE;
EventData->Event_Data.IAS_Alert_Level_Control_Point_Command_Data->Command = (IAS_Control_Point_Command_t)READ_UNALIGNED_BYTE_LITTLE_ENDIAN(GATT_ServerEventData->Event_Data.GATT_Write_Request_Data->AttributeValue);
__BTPSTRY
{
(*ServiceInstance->EventCallback)(ServiceInstance->BluetoothStackID, EventData, ServiceInstance->CallbackParameter);
}
__BTPSEXCEPT(1)
{
/* Do Nothing. */
}
}
}
else
GATT_Error_Response(BluetoothStackID, TransactionID, AttributeOffset, ATT_PROTOCOL_ERROR_CODE_REQUEST_NOT_SUPPORTED);
}
