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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Industrial I/O software trigger interface
*
* Copyright (c) 2015 Intel Corporation
*/
#ifndef __IIO_SW_TRIGGER
#define __IIO_SW_TRIGGER
#include <linux/module.h>
#include <linux/device.h>
#include <linux/iio/iio.h>
#include <linux/configfs.h>
#define module_iio_sw_trigger_driver(__iio_sw_trigger_type) \
module_driver(__iio_sw_trigger_type, iio_register_sw_trigger_type, \
iio_unregister_sw_trigger_type)
struct iio_sw_trigger_ops;
struct iio_sw_trigger_type {
const char *name;
struct module *owner;
const struct iio_sw_trigger_ops *ops;
struct list_head list;
struct config_group *group;
};
struct iio_sw_trigger {
struct iio_trigger *trigger;
struct iio_sw_trigger_type *trigger_type;
struct config_group group;
};
struct iio_sw_trigger_ops {
struct iio_sw_trigger* (*probe)(const char *);
int (*remove)(struct iio_sw_trigger *);
};
static inline
struct iio_sw_trigger *to_iio_sw_trigger(struct config_item *item)
{
return container_of(to_config_group(item), struct iio_sw_trigger,
group);
}
int iio_register_sw_trigger_type(struct iio_sw_trigger_type *tt);
void iio_unregister_sw_trigger_type(struct iio_sw_trigger_type *tt);
struct iio_sw_trigger *iio_sw_trigger_create(const char *, const char *);
void iio_sw_trigger_destroy(struct iio_sw_trigger *);
int iio_sw_trigger_type_configfs_register(struct iio_sw_trigger_type *tt);
void iio_sw_trigger_type_configfs_unregister(struct iio_sw_trigger_type *tt);
static inline
void iio_swt_group_init_type_name(struct iio_sw_trigger *t,
const char *name,
const struct config_item_type *type)
{
#if IS_ENABLED(CONFIG_CONFIGFS_FS)
config_group_init_type_name(&t->group, name, type);
#endif
}
#endif /* __IIO_SW_TRIGGER */