aplfw/driver/serial/at91/at91usartdrv_close.c

   1 /**
   2  *  Hyper Operating System  Application Framework
   3  *
   4  * @file  at91usartdrv_close.c
   5  * @brief %jp{ATMEL AT91シリーズUSART用デバイスドライバ}
   6  *
   7  * Copyright (C) 2006-2007 by Project HOS
   8  * http://sourceforge.jp/projects/hos/
   9  */
  10
  11
  12 #include "at91usartdrv_local.h"
  13
  14
  15 /** クローズ */
  16 void At91UsartDrv_Close(C_DRVOBJ *pDrvObj, C_FILEOBJ *pFileObj)
  17 {
  18         C_AT91USARTDRV  *self;
  19         C_CHRFILE               *pChrFile;
  20
  21         /* upper cast */
  22         self     = (C_AT91USARTDRV *)pDrvObj;
  23         pChrFile = (C_CHRFILE *)pFileObj;
  24
  25         /* クローズ処理 */
  26         if ( --self->iOpenCount == 0 )
  27         {
  28                 SysInt_Disable(self->iIntNum);
  29                 StreamBuf_ClearBuf(&self->StmBufRecv);
  30         }
  31
  32         /* ディスクリプタ削除 */
  33         ChrFile_Delete(pChrFile);
  34         SysMem_Free(pFileObj);
  35 }
  36
  37
  38 /* end of file */