forked from Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
107 lines
3.1 KiB
107 lines
3.1 KiB
/* SPDX-License-Identifier: GPL-2.0-only */ |
|
/* The industrial I/O core function defs. |
|
* |
|
* Copyright (c) 2008 Jonathan Cameron |
|
* |
|
* These definitions are meant for use only within the IIO core, not individual |
|
* drivers. |
|
*/ |
|
|
|
#ifndef _IIO_CORE_H_ |
|
#define _IIO_CORE_H_ |
|
#include <linux/kernel.h> |
|
#include <linux/device.h> |
|
|
|
struct iio_buffer; |
|
struct iio_chan_spec; |
|
struct iio_dev; |
|
|
|
extern struct device_type iio_device_type; |
|
|
|
struct iio_dev_buffer_pair { |
|
struct iio_dev *indio_dev; |
|
struct iio_buffer *buffer; |
|
}; |
|
|
|
#define IIO_IOCTL_UNHANDLED 1 |
|
struct iio_ioctl_handler { |
|
struct list_head entry; |
|
long (*ioctl)(struct iio_dev *indio_dev, struct file *filp, |
|
unsigned int cmd, unsigned long arg); |
|
}; |
|
|
|
long iio_device_ioctl(struct iio_dev *indio_dev, struct file *filp, |
|
unsigned int cmd, unsigned long arg); |
|
|
|
void iio_device_ioctl_handler_register(struct iio_dev *indio_dev, |
|
struct iio_ioctl_handler *h); |
|
void iio_device_ioctl_handler_unregister(struct iio_ioctl_handler *h); |
|
|
|
int __iio_add_chan_devattr(const char *postfix, |
|
struct iio_chan_spec const *chan, |
|
ssize_t (*func)(struct device *dev, |
|
struct device_attribute *attr, |
|
char *buf), |
|
ssize_t (*writefunc)(struct device *dev, |
|
struct device_attribute *attr, |
|
const char *buf, |
|
size_t len), |
|
u64 mask, |
|
enum iio_shared_by shared_by, |
|
struct device *dev, |
|
struct iio_buffer *buffer, |
|
struct list_head *attr_list); |
|
void iio_free_chan_devattr_list(struct list_head *attr_list); |
|
|
|
int iio_device_register_sysfs_group(struct iio_dev *indio_dev, |
|
const struct attribute_group *group); |
|
|
|
ssize_t iio_format_value(char *buf, unsigned int type, int size, int *vals); |
|
|
|
/* Event interface flags */ |
|
#define IIO_BUSY_BIT_POS 1 |
|
|
|
#ifdef CONFIG_IIO_BUFFER |
|
struct poll_table_struct; |
|
|
|
__poll_t iio_buffer_poll_wrapper(struct file *filp, |
|
struct poll_table_struct *wait); |
|
ssize_t iio_buffer_read_wrapper(struct file *filp, char __user *buf, |
|
size_t n, loff_t *f_ps); |
|
|
|
int iio_buffers_alloc_sysfs_and_mask(struct iio_dev *indio_dev); |
|
void iio_buffers_free_sysfs_and_mask(struct iio_dev *indio_dev); |
|
|
|
#define iio_buffer_poll_addr (&iio_buffer_poll_wrapper) |
|
#define iio_buffer_read_outer_addr (&iio_buffer_read_wrapper) |
|
|
|
void iio_disable_all_buffers(struct iio_dev *indio_dev); |
|
void iio_buffer_wakeup_poll(struct iio_dev *indio_dev); |
|
void iio_device_detach_buffers(struct iio_dev *indio_dev); |
|
|
|
#else |
|
|
|
#define iio_buffer_poll_addr NULL |
|
#define iio_buffer_read_outer_addr NULL |
|
|
|
static inline int iio_buffers_alloc_sysfs_and_mask(struct iio_dev *indio_dev) |
|
{ |
|
return 0; |
|
} |
|
|
|
static inline void iio_buffers_free_sysfs_and_mask(struct iio_dev *indio_dev) {} |
|
|
|
static inline void iio_disable_all_buffers(struct iio_dev *indio_dev) {} |
|
static inline void iio_buffer_wakeup_poll(struct iio_dev *indio_dev) {} |
|
static inline void iio_device_detach_buffers(struct iio_dev *indio_dev) {} |
|
|
|
#endif |
|
|
|
int iio_device_register_eventset(struct iio_dev *indio_dev); |
|
void iio_device_unregister_eventset(struct iio_dev *indio_dev); |
|
void iio_device_wakeup_eventset(struct iio_dev *indio_dev); |
|
|
|
struct iio_event_interface; |
|
bool iio_event_enabled(const struct iio_event_interface *ev_int); |
|
|
|
#endif
|
|
|