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/time.h>
  13 #include <linux/module.h>
  14
  15 #include "csr_time.h"
  16
  17 u32 CsrTimeGet(u32 *high)
  18 {
  19         struct timespec ts;
  20         u64 time;
  21         u32 low;
  22
  23         ts = current_kernel_time();
  24         time = (u64) ts.tv_sec * 1000000 + ts.tv_nsec / 1000;
  25
  26         if (high != NULL)
  27                 *high = (u32) ((time >> 32) & 0xFFFFFFFF);
  28
  29         low = (u32) (time & 0xFFFFFFFF);
  30
  31         return low;
  32 }
  33 EXPORT_SYMBOL_GPL(CsrTimeGet);