2 * Industrial I/O software trigger interface
4 * Copyright (c) 2015 Intel Corporation
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.
11 #ifndef __IIO_SW_TRIGGER
12 #define __IIO_SW_TRIGGER
14 #include <linux/module.h>
15 #include <linux/device.h>
16 #include <linux/iio/iio.h>
17 #include <linux/configfs.h>
19 #define module_iio_sw_trigger_driver(__iio_sw_trigger_type) \
20 module_driver(__iio_sw_trigger_type, iio_register_sw_trigger_type, \
21 iio_unregister_sw_trigger_type)
23 struct iio_sw_trigger_ops;
25 struct iio_sw_trigger_type {
28 const struct iio_sw_trigger_ops *ops;
29 struct list_head list;
30 struct config_group *group;
33 struct iio_sw_trigger {
34 struct iio_trigger *trigger;
35 struct iio_sw_trigger_type *trigger_type;
36 struct config_group group;
39 struct iio_sw_trigger_ops {
40 struct iio_sw_trigger* (*probe)(const char *);
41 int (*remove)(struct iio_sw_trigger *);
45 struct iio_sw_trigger *to_iio_sw_trigger(struct config_item *item)
47 return container_of(to_config_group(item), struct iio_sw_trigger,
51 int iio_register_sw_trigger_type(struct iio_sw_trigger_type *tt);
52 void iio_unregister_sw_trigger_type(struct iio_sw_trigger_type *tt);
54 struct iio_sw_trigger *iio_sw_trigger_create(const char *, const char *);
55 void iio_sw_trigger_destroy(struct iio_sw_trigger *);
57 int iio_sw_trigger_type_configfs_register(struct iio_sw_trigger_type *tt);
58 void iio_sw_trigger_type_configfs_unregister(struct iio_sw_trigger_type *tt);
61 void iio_swt_group_init_type_name(struct iio_sw_trigger *t,
63 struct config_item_type *type)
65 #if IS_ENABLED(CONFIG_CONFIGFS_FS)
66 config_group_init_type_name(&t->group, name, type);
70 #endif /* __IIO_SW_TRIGGER */