/* * Industrial I/O software trigger interface * * Copyright (c) 2015 Intel Corporation * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 as published by * the Free Software Foundation. */ #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 */