74 lines
2.1 KiB
C
74 lines
2.1 KiB
C
/* The industrial I/O core function defs.
|
|
*
|
|
* Copyright (c) 2008 Jonathan Cameron
|
|
*
|
|
* 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.
|
|
*
|
|
* 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_chan_spec;
|
|
struct iio_dev;
|
|
|
|
extern struct device_type iio_device_type;
|
|
|
|
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 list_head *attr_list);
|
|
void iio_free_chan_devattr_list(struct list_head *attr_list);
|
|
|
|
ssize_t iio_format_value(char *buf, unsigned int type, int val, int val2);
|
|
|
|
/* Event interface flags */
|
|
#define IIO_BUSY_BIT_POS 1
|
|
|
|
#ifdef CONFIG_IIO_BUFFER
|
|
struct poll_table_struct;
|
|
|
|
unsigned int iio_buffer_poll(struct file *filp,
|
|
struct poll_table_struct *wait);
|
|
ssize_t iio_buffer_read_first_n_outer(struct file *filp, char __user *buf,
|
|
size_t n, loff_t *f_ps);
|
|
|
|
|
|
#define iio_buffer_poll_addr (&iio_buffer_poll)
|
|
#define iio_buffer_read_first_n_outer_addr (&iio_buffer_read_first_n_outer)
|
|
|
|
void iio_disable_all_buffers(struct iio_dev *indio_dev);
|
|
void iio_buffer_wakeup_poll(struct iio_dev *indio_dev);
|
|
|
|
#else
|
|
|
|
#define iio_buffer_poll_addr NULL
|
|
#define iio_buffer_read_first_n_outer_addr NULL
|
|
|
|
static inline void iio_disable_all_buffers(struct iio_dev *indio_dev) {}
|
|
static inline void iio_buffer_wakeup_poll(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);
|
|
int iio_event_getfd(struct iio_dev *indio_dev);
|
|
|
|
#endif
|