include/spl-device.h

   1 /*****************************************************************************\
   2  *  Copyright (C) 2007-2010 Lawrence Livermore National Security, LLC.
   3  *  Copyright (C) 2007 The Regents of the University of California.
   4  *  Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
   5  *  Written by Brian Behlendorf <behlendorf1@llnl.gov>.
   6  *  UCRL-CODE-235197
   7  *
   8  *  This file is part of the SPL, Solaris Porting Layer.
   9  *  For details, see <http://github.com/behlendorf/spl/>.
  10  *
  11  *  The SPL is free software; you can redistribute it and/or modify it
  12  *  under the terms of the GNU General Public License as published by the
  13  *  Free Software Foundation; either version 2 of the License, or (at your
  14  *  option) any later version.
  15  *
  16  *  The SPL is distributed in the hope that it will be useful, but WITHOUT
  17  *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  18  *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  19  *  for more details.
  20  *
  21  *  You should have received a copy of the GNU General Public License along
  22  *  with the SPL.  If not, see <http://www.gnu.org/licenses/>.
  23 \*****************************************************************************/
  24
  25 #ifndef _SPL_DEVICE_H
  26 #define _SPL_DEVICE_H
  27
  28 #include <linux/device.h>
  29
  30 /*
  31  * Preferred API from 2.6.18 to 2.6.26+
  32  */
  33 #ifdef HAVE_DEVICE_CREATE
  34
  35 typedef struct class                    spl_class;
  36 typedef struct device                   spl_device;
  37
  38 #define spl_class_create(mod, name)     class_create(mod, name)
  39 #define spl_class_destroy(cls)          class_destroy(cls)
  40
  41 # ifdef HAVE_5ARGS_DEVICE_CREATE
  42 # define spl_device_create(cls, parent, devt, drvdata, fmt, args...)          \
  43         device_create(cls, parent, devt, drvdata, fmt, ## args)
  44 # else
  45 # define spl_device_create(cls, parent, devt, drvdata, fmt, args...)          \
  46         device_create(cls, parent, devt, fmt, ## args)
  47 # endif
  48
  49 #define spl_device_destroy(cls, cls_dev, devt)                                \
  50         device_destroy(cls, devt)
  51
  52 /*
  53  * Preferred API from 2.6.13 to 2.6.17
  54  * Depricated in 2.6.18
  55  * Removed in 2.6.26
  56  */
  57 #else
  58 #ifdef HAVE_CLASS_DEVICE_CREATE
  59
  60 typedef struct class                    spl_class;
  61 typedef struct class_device             spl_device;
  62
  63 #define spl_class_create(mod, name)     class_create(mod, name)
  64 #define spl_class_destroy(cls)          class_destroy(cls)
  65 #define spl_device_create(cls, parent, devt, device, fmt, args...)            \
  66         class_device_create(cls, parent, devt, device, fmt, ## args)
  67 #define spl_device_destroy(cls, cls_dev, devt)                                \
  68         class_device_unregister(cls_dev)
  69
  70 /*
  71  * Prefered API from 2.6.0 to 2.6.12
  72  * Depricated in 2.6.13
  73  * Removed in 2.6.13
  74  */
  75 #else /* Legacy API */
  76
  77 typedef struct class_simple             spl_class;
  78 typedef struct class_device             spl_class_device;
  79
  80 #define spl_class_create(mod, name)     class_simple_create(mod, name)
  81 #define spl_class_destroy(cls)          class_simple_destroy(cls)
  82 #define spl_device_create(cls, parent, devt, device, fmt, args...)            \
  83         class_simple_device_add(cls, devt, device, fmt, ## args)
  84 #define spl_device_destroy(cls, cls_dev, devt)                                \
  85         class_simple_device_remove(devt)
  86
  87 #endif /* HAVE_CLASS_DEVICE_CREATE */
  88 #endif /* HAVE_DEVICE_CREATE */
  89
  90 #endif /* _SPL_DEVICE_H */