1
2/*
3 * Licensed Materials - Property of IBM
4 *
5 * trousers - An open source TCG Software Stack
6 *
7 * (C) Copyright International Business Machines Corp. 2004-2007
8 *
9 */
10
11#include <stdlib.h>
12#include <stdio.h>
13#include <string.h>
14
15#include "trousers/tss.h"
16#include "trousers/trousers.h"
17#include "trousers_types.h"
18#include "spi_utils.h"
19#include "capabilities.h"
20#include "tsplog.h"
21#include "obj.h"
22
23
24TSS_RESULT
25Tspi_TPM_ReadCounter(TSS_HTPM hTPM,		/* in */
26		     UINT32*  counterValue)	/* out */
27{
28	TSS_HCONTEXT tspContext;
29	TCPA_RESULT result;
30	TSS_COUNTER_ID counterID;
31	TPM_COUNTER_VALUE counter_value;
32
33	if (counterValue == NULL)
34		return TSPERR(TSS_E_BAD_PARAMETER);
35
36	if ((result = obj_tpm_get_tsp_context(hTPM, &tspContext)))
37		return result;
38
39	if ((result = obj_tpm_get_current_counter(hTPM, &counterID)))
40		return result;
41
42	if ((result = TCS_API(tspContext)->ReadCounter(tspContext, counterID, &counter_value)))
43		return result;
44
45	*counterValue = counter_value.counter;
46
47	return TSS_SUCCESS;
48}
49