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 | static inline |
55 | void iio_swt_group_init_type_name(struct iio_sw_trigger *t, |
56 | const char *name, |
57 | const struct config_item_type *type) |
58 | { |
59 | #if IS_ENABLED(CONFIG_CONFIGFS_FS) |
60 | config_group_init_type_name(group: &t->group, name, type); |
61 | #endif |
62 | } |
63 | |
64 | #endif /* __IIO_SW_TRIGGER */ |
65 |