LXR linux/include/linux/iio/sw

   1/*
   2 * Industrial I/O software device interface
   3 *
   4 * Copyright (c) 2016 Intel Corporation
   5 *
   6 * This program is free software; you can redistribute it and/or modify it
   7 * under the terms of the GNU General Public License version 2 as published by
   8 * the Free Software Foundation.
   9 */
  10
  11#ifndef __IIO_SW_DEVICE
  12#define __IIO_SW_DEVICE
  13
  14#include <linux/module.h>
  15#include <linux/device.h>
  16#include <linux/iio/iio.h>
  17#include <linux/configfs.h>
  18
  19#define module_iio_sw_device_driver(__iio_sw_device_type) \
  20        module_driver(__iio_sw_device_type, iio_register_sw_device_type, \
  21                      iio_unregister_sw_device_type)
  22
  23struct iio_sw_device_ops;
  24
  25struct iio_sw_device_type {
  26        const char *name;
  27        struct module *owner;
  28        const struct iio_sw_device_ops *ops;
  29        struct list_head list;
  30        struct config_group *group;
  31};
  32
  33struct iio_sw_device {
  34        struct iio_dev *device;
  35        struct iio_sw_device_type *device_type;
  36        struct config_group group;
  37};
  38
  39struct iio_sw_device_ops {
  40        struct iio_sw_device* (*probe)(const char *);
  41        int (*remove)(struct iio_sw_device *);
  42};
  43
  44static inline
  45struct iio_sw_device *to_iio_sw_device(struct config_item *item)
  46{
  47        return container_of(to_config_group(item), struct iio_sw_device,
  48                            group);
  49}
  50
  51int iio_register_sw_device_type(struct iio_sw_device_type *dt);
  52void iio_unregister_sw_device_type(struct iio_sw_device_type *dt);
  53
  54struct iio_sw_device *iio_sw_device_create(const char *, const char *);
  55void iio_sw_device_destroy(struct iio_sw_device *);
  56
  57int iio_sw_device_type_configfs_register(struct iio_sw_device_type *dt);
  58void iio_sw_device_type_configfs_unregister(struct iio_sw_device_type *dt);
  59
  60static inline
  61void iio_swd_group_init_type_name(struct iio_sw_device *d,
  62                                  const char *name,
  63                                  const struct config_item_type *type)
  64{
  65#if IS_ENABLED(CONFIG_CONFIGFS_FS)
  66        config_group_init_type_name(&d->group, name, type);
  67#endif
  68}
  69
  70#endif /* __IIO_SW_DEVICE */
  71