1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * Industrial I/O software device interface 4 * 5 * Copyright (c) 2016 Intel Corporation 6 */ 7 8 #ifndef __IIO_SW_DEVICE 9 #define __IIO_SW_DEVICE 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_device_driver(__iio_sw_device_type) \ 17 module_driver(__iio_sw_device_type, iio_register_sw_device_type, \ 18 iio_unregister_sw_device_type) 19 20 struct iio_sw_device_ops; 21 22 struct iio_sw_device_type { 23 const char *name; 24 struct module *owner; 25 const struct iio_sw_device_ops *ops; 26 struct list_head list; 27 struct config_group *group; 28 }; 29 30 struct iio_sw_device { 31 struct iio_dev *device; 32 struct iio_sw_device_type *device_type; 33 struct config_group group; 34 }; 35 36 struct iio_sw_device_ops { 37 struct iio_sw_device* (*probe)(const char *); 38 int (*remove)(struct iio_sw_device *); 39 }; 40 41 static inline 42 struct iio_sw_device *to_iio_sw_device(struct config_item *item) 43 { 44 return container_of(to_config_group(item), struct iio_sw_device, 45 group); 46 } 47 48 int iio_register_sw_device_type(struct iio_sw_device_type *dt); 49 void iio_unregister_sw_device_type(struct iio_sw_device_type *dt); 50 51 struct iio_sw_device *iio_sw_device_create(const char *, const char *); 52 void iio_sw_device_destroy(struct iio_sw_device *); 53 54 int iio_sw_device_type_configfs_register(struct iio_sw_device_type *dt); 55 void iio_sw_device_type_configfs_unregister(struct iio_sw_device_type *dt); 56 57 static inline 58 void iio_swd_group_init_type_name(struct iio_sw_device *d, 59 const char *name, 60 const struct config_item_type *type) 61 { 62 #if IS_ENABLED(CONFIG_CONFIGFS_FS) 63 config_group_init_type_name(&d->group, name, type); 64 #endif 65 } 66 67 #endif /* __IIO_SW_DEVICE */ 68