drivers/staging/wilc1000/wilc_semaphore.c

   1
   2 #include "wilc_oswrapper.h"
   3
   4 WILC_ErrNo WILC_SemaphoreCreate(WILC_SemaphoreHandle *pHandle,
   5                                 tstrWILC_SemaphoreAttrs *pstrAttrs)
   6 {
   7         tstrWILC_SemaphoreAttrs strDefaultAttrs;
   8         if (pstrAttrs == WILC_NULL) {
   9                 WILC_SemaphoreFillDefault(&strDefaultAttrs);
  10                 pstrAttrs = &strDefaultAttrs;
  11         }
  12
  13         sema_init(pHandle, pstrAttrs->u32InitCount);
  14         return WILC_SUCCESS;
  15
  16 }
  17
  18
  19 WILC_ErrNo WILC_SemaphoreDestroy(WILC_SemaphoreHandle *pHandle,
  20                                  tstrWILC_SemaphoreAttrs *pstrAttrs)
  21 {
  22         /* nothing to be done ! */
  23
  24         return WILC_SUCCESS;
  25
  26 }
  27
  28
  29 WILC_ErrNo WILC_SemaphoreAcquire(WILC_SemaphoreHandle *pHandle,
  30                                  tstrWILC_SemaphoreAttrs *pstrAttrs)
  31 {
  32         WILC_ErrNo s32RetStatus = WILC_SUCCESS;
  33
  34         while (down_interruptible(pHandle))
  35                 ;
  36
  37         if (s32RetStatus == 0) {
  38                 return WILC_SUCCESS;
  39         } else if (s32RetStatus == -ETIME)   {
  40                 return WILC_TIMEOUT;
  41         } else {
  42                 return WILC_FAIL;
  43         }
  44
  45         return WILC_SUCCESS;
  46
  47 }
  48
  49 WILC_ErrNo WILC_SemaphoreRelease(WILC_SemaphoreHandle *pHandle,
  50                                  tstrWILC_SemaphoreAttrs *pstrAttrs)
  51 {
  52
  53         up(pHandle);
  54         return WILC_SUCCESS;
  55
  56 }