pcan_common.h

CAN 驱动编程

#ifndef __PCAN_COMMON_H__
#define __PCAN_COMMON_H__

//****************************************************************************
// Copyright (C) 2001,2002,2003  PEAK System-Technik GmbH
//
// [e-mail]
// www.peak-system.com
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
//
// Maintainer(s): Klaus Hitschler ([e-mail])
//****************************************************************************

//****************************************************************************
//
// global defines to include in all files this module is made of
// ! this must always the 1st include in all files !
//
// $Log: pcan_common.h,v $
// Revision 1.10  2003/03/02 10:58:07  klaus
// merged USB thread into main path
//
// Revision 1.9  2003/03/02 10:58:07  klaus
// merged USB thread into main path
//
// Revision 1.8.2.4  2003/01/29 20:34:20  klaus
// release_20030129_a and release_20030129_u released
//
// Revision 1.8.2.3  2003/01/29 20:34:19  klaus
// release_20030129_a and release_20030129_u released
//
// Revision 1.8.2.2  2003/01/28 23:28:26  klaus
// reorderd pcan_usb.c and pcan_usb_kernel.c, tidied up
//
// Revision 1.8.2.1  2003/01/07 22:28:50  klaus
// header file dependency check inserted
//
//****************************************************************************

//****************************************************************************
// DEFINES
#ifndef __KERNEL__
#define __KERNEL__
#endif
#ifndef MODULE
#define MODULE
#endif

// support for MODVERSIONS
#include <linux/autoconf.h>
#if defined(CONFIG_MODVERSIONS) && !defined(MODVERSIONS)
#define MODVERSIONS
#endif

#ifdef MODVERSIONS
#include <linux/modversions.h>
#endif

// support for PARPORT_SUBSYSTEM
#if !defined(CONFIG_PARPORT_MODULE) && !defined(CONFIG_PARPORT) && defined(PARPORT_SUBSYSTEM)
#undef PARPORT_SUBSYSTEM
#endif

// support for USB
#if !defined(CONFIG_USB_MODULE) && !defined(CONFIG_USB) && defined(USB_SUPPORT)
#undef USB_SUPPORT
#endif

// support only versions 2.2.x and 2.4.x
#include <linux/version.h>  // if this file is not found: please look @ /boot/vmlinuz.version.h
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,1,0)
  #error "This kernel is too old and not supported"
#elif LINUX_VERSION_CODE < KERNEL_VERSION(2,3,0)
  #define LINUX_22 // LINUX 2.2.x
#else  
  #define LINUX_24 // > LINUX 2.4.x
#endif

// switch to disable all printks for not debugging
#ifdef DEBUG
#define DPRINTK printk
#else
#define DPRINTK(stuff...)
#endif

#endif // __PCAN_COMMON_H__