aplfw/driver/serial/renesas/scidrv_open.c

   1 /**
   2  *  Hyper Operating System  Application Framework
   3  *
   4  * @file  scidrv.c
   5  * @brief %jp{SCI用デバイスドライバ}
   6  *
   7  * Copyright (C) 2006 by Project HOS
   8  * http://sourceforge.jp/projects/hos/
   9  */
  10
  11
  12 #include "scidrv_local.h"
  13
  14
  15 /** オープン */
  16 HANDLE SciDrv_Open(C_DRVOBJ *pDrvObj, const char *pszPath, int iMode)
  17 {
  18         C_SCIDRV        *self;
  19         C_CHRFILE               *pChrFile;
  20
  21         /* upper cast */
  22         self = (C_SCIDRV *)pDrvObj;
  23
  24         /* create file descriptor */
  25         if ( (pChrFile = SysMem_Alloc(sizeof(*pChrFile))) == NULL )
  26         {
  27                 return HANDLE_NULL;
  28         }
  29         ChrFile_Create(pChrFile, pDrvObj, NULL);
  30
  31         /* オープン処理 */
  32         if ( self->iOpenCount++ == 0 )
  33         {
  34                 SciHal_Setup(&self->SciHal);
  35                 SciHal_SetSpeed(&self->SciHal, 38400);
  36                 SciHal_EnableInterrupt(&self->SciHal, SCIHAL_INT_RIE);
  37         }
  38
  39         return (HANDLE)pChrFile;
  40 }
  41
  42
  43 /* end of file */