71 lines
2.7 KiB
C
71 lines
2.7 KiB
C
|
/* SPDX-License-Identifier: GPL-2.0 */
|
||
|
|
|
||
|
|
#ifndef _INDUSTRIAL_IO_OPAQUE_H_
|
||
|
|
#define _INDUSTRIAL_IO_OPAQUE_H_
|
||
|
|
|
||
|
|
/**
|
||
|
|
* struct iio_dev_opaque - industrial I/O device opaque information
|
||
|
|
* @indio_dev: public industrial I/O device information
|
||
|
|
* @id: used to identify device internally
|
||
|
|
* @driver_module: used to make it harder to undercut users
|
||
|
|
* @info_exist_lock: lock to prevent use during removal
|
||
|
|
* @trig_readonly: mark the current trigger immutable
|
||
|
|
* @event_interface: event chrdevs associated with interrupt lines
|
||
|
|
* @attached_buffers: array of buffers statically attached by the driver
|
||
|
|
* @attached_buffers_cnt: number of buffers in the array of statically attached buffers
|
||
|
|
* @buffer_ioctl_handler: ioctl() handler for this IIO device's buffer interface
|
||
|
|
* @buffer_list: list of all buffers currently attached
|
||
|
|
* @channel_attr_list: keep track of automatically created channel
|
||
|
|
* attributes
|
||
|
|
* @chan_attr_group: group for all attrs in base directory
|
||
|
|
* @ioctl_handlers: ioctl handlers registered with the core handler
|
||
|
|
* @groups: attribute groups
|
||
|
|
* @groupcounter: index of next attribute group
|
||
|
|
* @legacy_scan_el_group: attribute group for legacy scan elements attribute group
|
||
|
|
* @legacy_buffer_group: attribute group for legacy buffer attributes group
|
||
|
|
* @scan_index_timestamp: cache of the index to the timestamp
|
||
|
|
* @clock_id: timestamping clock posix identifier
|
||
|
|
* @chrdev: associated character device
|
||
|
|
* @flags: file ops related flags including busy flag.
|
||
|
|
* @debugfs_dentry: device specific debugfs dentry
|
||
|
|
* @cached_reg_addr: cached register address for debugfs reads
|
||
|
|
* @read_buf: read buffer to be used for the initial reg read
|
||
|
|
* @read_buf_len: data length in @read_buf
|
||
|
|
*/
|
||
|
|
struct iio_dev_opaque {
|
||
|
|
struct iio_dev indio_dev;
|
||
|
|
int id;
|
||
|
|
struct module *driver_module;
|
||
|
|
struct mutex info_exist_lock;
|
||
|
|
bool trig_readonly;
|
||
|
|
struct iio_event_interface *event_interface;
|
||
|
|
struct iio_buffer **attached_buffers;
|
||
|
|
unsigned int attached_buffers_cnt;
|
||
|
|
struct iio_ioctl_handler *buffer_ioctl_handler;
|
||
|
|
struct list_head buffer_list;
|
||
|
|
struct list_head channel_attr_list;
|
||
|
|
struct attribute_group chan_attr_group;
|
||
|
|
struct list_head ioctl_handlers;
|
||
|
|
const struct attribute_group **groups;
|
||
|
|
int groupcounter;
|
||
|
|
struct attribute_group legacy_scan_el_group;
|
||
|
|
struct attribute_group legacy_buffer_group;
|
||
|
|
|
||
|
|
unsigned int scan_index_timestamp;
|
||
|
|
clockid_t clock_id;
|
||
|
|
struct cdev chrdev;
|
||
|
|
unsigned long flags;
|
||
|
|
|
||
|
|
#if defined(CONFIG_DEBUG_FS)
|
||
|
|
struct dentry *debugfs_dentry;
|
||
|
|
unsigned cached_reg_addr;
|
||
|
|
char read_buf[20];
|
||
|
|
unsigned int read_buf_len;
|
||
|
|
#endif
|
||
|
|
};
|
||
|
|
|
||
|
|
#define to_iio_dev_opaque(_indio_dev) \
|
||
|
|
container_of((_indio_dev), struct iio_dev_opaque, indio_dev)
|
||
|
|
|
||
|
|
#endif
|