root/include/linux/iio/sw_trigger.h

INCLUDED FROM

DEFINITIONS

1. to_iio_sw_trigger
2. iio_swt_group_init_type_name

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * Industrial I/O software trigger interface
   4  *
   5  * Copyright (c) 2015 Intel Corporation
   6  */
   7 
   8 #ifndef __IIO_SW_TRIGGER
   9 #define __IIO_SW_TRIGGER
  10 
  11 #include <linux/module.h>
  12 #include <linux/device.h>
  13 #include <linux/iio/iio.h>
  14 #include <linux/configfs.h>
  15 
  16 #define module_iio_sw_trigger_driver(__iio_sw_trigger_type) \
  17         module_driver(__iio_sw_trigger_type, iio_register_sw_trigger_type, \
  18                       iio_unregister_sw_trigger_type)
  19 
  20 struct iio_sw_trigger_ops;
  21 
  22 struct iio_sw_trigger_type {
  23         const char *name;
  24         struct module *owner;
  25         const struct iio_sw_trigger_ops *ops;
  26         struct list_head list;
  27         struct config_group *group;
  28 };
  29 
  30 struct iio_sw_trigger {
  31         struct iio_trigger *trigger;
  32         struct iio_sw_trigger_type *trigger_type;
  33         struct config_group group;
  34 };
  35 
  36 struct iio_sw_trigger_ops {
  37         struct iio_sw_trigger* (*probe)(const char *);
  38         int (*remove)(struct iio_sw_trigger *);
  39 };
  40 
  41 static inline
  42 struct iio_sw_trigger *to_iio_sw_trigger(struct config_item *item)
  43 {
  44         return container_of(to_config_group(item), struct iio_sw_trigger,
  45                             group);
  46 }
  47 
  48 int iio_register_sw_trigger_type(struct iio_sw_trigger_type *tt);
  49 void iio_unregister_sw_trigger_type(struct iio_sw_trigger_type *tt);
  50 
  51 struct iio_sw_trigger *iio_sw_trigger_create(const char *, const char *);
  52 void iio_sw_trigger_destroy(struct iio_sw_trigger *);
  53 
  54 int iio_sw_trigger_type_configfs_register(struct iio_sw_trigger_type *tt);
  55 void iio_sw_trigger_type_configfs_unregister(struct iio_sw_trigger_type *tt);
  56 
  57 static inline
  58 void iio_swt_group_init_type_name(struct iio_sw_trigger *t,
  59                                   const char *name,
  60                                   const struct config_item_type *type)
  61 {
  62 #if IS_ENABLED(CONFIG_CONFIGFS_FS)
  63         config_group_init_type_name(&t->group, name, type);
  64 #endif
  65 }
  66 
  67 #endif /* __IIO_SW_TRIGGER */