add microblaze sample

[hos/hos-v4a.git] / aplfw / driver / serial / xilinxuartdrv / xilinxuartdrv_open.c

diff --git a/aplfw/driver/serial/xilinxuartdrv/xilinxuartdrv_open.c b/aplfw/driver/serial/xilinxuartdrv/xilinxuartdrv_open.c
new file mode 100644 (file)
index 0000000..e968937
--- /dev/null
+++ b/aplfw/driver/serial/xilinxuartdrv/xilinxuartdrv_open.c
@@ -0,0 +1,45 @@
+/** 
+ * Hyper Operating System  Application Framework
+ *
+ * @file  xilinxuartdrv_close.c
+ * @brief %jp{XILINX UART driver クローズ}%en{XILINX UART driver  close}
+ *
+ * Copyright (C) 2008 by Project HOS
+ * http://sourceforge.jp/projects/hos/
+ */
+
+
+#include "xilinxuartdrv_local.h"
+
+
+/** オープン */
+HANDLE XilinxUartDrv_Open(C_DRVOBJ *pDrvObj, const char *pszPath, int iMode)
+{
+       C_XILINXUARTDRV *self;
+       HANDLE          hFile;
+       
+       /* upper cast */
+       self = (C_XILINXUARTDRV *)pDrvObj;
+
+       /* create file descriptor */
+       if ( (hFile = SyncFile_Create(&self->SyncDrv, iMode)) == HANDLE_NULL )
+       {
+               return HANDLE_NULL;
+       }
+       
+       /* オープン処理 */
+       if ( self->iOpenCount++ == 0 )
+       {
+               /* ここでデバイスを初期化 */
+               XILINXUARTDRV_REG_WRITE(self, XILINXUARTDRV_REG_CTRL, 0x03);    /* FIFO clear */
+               XILINXUARTDRV_REG_WRITE(self, XILINXUARTDRV_REG_CTRL, 0x10);    /* Enable Int */
+
+               /* 割込みを許可 */
+               SysInt_Enable(self->iIntNum);
+       }
+       
+       return hFile;
+}
+
+
+/* end of file */