Root/drivers/staging/csr/csr_time.c

1/*****************************************************************************
2
3            (c) Cambridge Silicon Radio Limited 2010
4            All rights reserved and confidential information of CSR
5
6            Refer to LICENSE.txt included with this source for details
7            on the license terms.
8
9*****************************************************************************/
10
11#include <linux/kernel.h>
12#include <linux/version.h>
13
14#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 33)
15#elif LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 16)
16#include <linux/autoconf.h>
17#include <linux/config.h>
18#endif
19
20#include <linux/time.h>
21#include <linux/module.h>
22
23#include "csr_time.h"
24
25CsrTime CsrTimeGet(CsrTime *high)
26{
27    struct timespec ts;
28    u64 time;
29    CsrTime low;
30
31    ts = current_kernel_time();
32    time = (u64) ts.tv_sec * 1000000 + ts.tv_nsec / 1000;
33
34    if (high != NULL)
35    {
36        *high = (CsrTime) ((time >> 32) & 0xFFFFFFFF);
37    }
38
39    low = (CsrTime) (time & 0xFFFFFFFF);
40
41    return low;
42}
43EXPORT_SYMBOL_GPL(CsrTimeGet);
44

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