rzkioctl.c

来自「zilog的实时操作系统RZK,可以移植到多种处理器上」· C语言 代码 · 共 45 行

/*
 * File       : RZKIoctl.c
 * Scope      : Scope is limited to only device driver framework.
 *
 * Description: This file implements the Ioctl API of device driver framework
 *
 * Copyright 2004 ZiLOG Inc.  ALL RIGHTS RESERVED.
 *
 * This file contains unpublished confidential and proprietary information
 * of ZiLOG, Inc.
 * NO PART OF THIS WORK MAY BE DUPLICATED, STORED, PUBLISHED OR DISCLOSED 
 * IN ANY FORM WITHOUT THE PRIOR WRITTEN CONSENT OF ZiLOG, INC.
 * This is not a license and no use of any kind of this work is authorized
 * in the absence of a written license granted by ZiLOG, Inc. in ZiLOG's 
 * sole discretion 
 */


#include "ZTypes.h"
#include "ZSysgen.h"
#include "ZDevice.h"
#include "ZThread.h"
#include "externvar.h"

DDF_STATUS_t RZKDevIOCTL( 
						RZK_DEVICE_CB_t *pdev,
						RZK_DEV_BYTES_t	uOperation,		// operation type SET/GET
						void *addr1,
						void *addr2
						)
{
#ifdef RZK_DEBUG
	if( (pdev == NULL) || (uOperation <= 0) )
		return DDFERR_INVALID_ARGUMENTS;
#endif

	// frame work does not understand how the IOCTL is handled, so it is left to the
	// device how it would like to implement. For the same reason, we are not updating
	// any functionality in the framework framework.
	// directly call the ioctl handler of the device.
	if(pdev->fnIoctl)
		return (( *( pdev->fnIoctl) )( pdev, uOperation, addr1, addr2 ) );
	else
		return DDFERR_INVALID_INITIALIZER ;
}// end of RZKDevIOCTL