include/spl-device.h

   1 #ifndef _SPL_DEVICE_H
   2 #define _SPL_DEVICE_H
   3
   4 #include <linux/device.h>
   5
   6 /*
   7  * Preferred API from 2.6.18 to 2.6.26+
   8  */
   9 #ifdef HAVE_DEVICE_CREATE
  10
  11 typedef struct class                    spl_class;
  12 typedef struct device                   spl_device;
  13
  14 #define spl_class_create(mod, name)     class_create(mod, name)
  15 #define spl_class_destroy(cls)          class_destroy(cls)
  16
  17 # ifdef HAVE_5ARGS_DEVICE_CREATE
  18 # define spl_device_create(cls, parent, devt, drvdata, fmt, args...)          \
  19         device_create(cls, parent, devt, drvdata, fmt, ## args)
  20 # else
  21 # define spl_device_create(cls, parent, devt, drvdata, fmt, args...)          \
  22         device_create(cls, parent, devt, fmt, ## args)
  23 # endif
  24
  25 #define spl_device_destroy(cls, cls_dev, devt)                                \
  26         device_destroy(cls, devt)
  27
  28 /*
  29  * Preferred API from 2.6.13 to 2.6.17
  30  * Depricated in 2.6.18
  31  * Removed in 2.6.26
  32  */
  33 #else
  34 #ifdef HAVE_CLASS_DEVICE_CREATE
  35
  36 typedef struct class                    spl_class;
  37 typedef struct class_device             spl_device;
  38
  39 #define spl_class_create(mod, name)     class_create(mod, name)
  40 #define spl_class_destroy(cls)          class_destroy(cls)
  41 #define spl_device_create(cls, parent, devt, device, fmt, args...)            \
  42         class_device_create(cls, devt, device, fmt, ## args)
  43 #define spl_device_destroy(cls, cls_dev, devt)                                \
  44         class_device_unregister(cls_dev)
  45
  46 /*
  47  * Prefered API from 2.6.0 to 2.6.12
  48  * Depricated in 2.6.13
  49  * Removed in 2.6.13
  50  */
  51 #else /* Legacy API */
  52
  53 typedef struct class_simple             spl_class;
  54 typedef struct class_device             spl_class_device;
  55
  56 #define spl_class_create(mod, name)     class_simple_create(mod, name)
  57 #define spl_class_destroy(cls)          class_simple_destroy(cls)
  58 #define spl_device_create(cls, parent, devt, device, fmt, args...)            \
  59         class_simple_device_add(cls, devt, device, fmt, ## args)
  60 #define spl_device_destroy(cls, cls_dev, devt)                                \
  61         class_simple_device_remove(devt)
  62
  63 #endif
  64 #endif
  65
  66 #endif /* _SPL_DEVICE_H */