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path: root/drivers/iio/industrialio-event.c
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Diffstat (limited to 'drivers/iio/industrialio-event.c')
-rw-r--r--drivers/iio/industrialio-event.c68
1 files changed, 40 insertions, 28 deletions
diff --git a/drivers/iio/industrialio-event.c b/drivers/iio/industrialio-event.c
index 5b17c92d3b50..2ab4d4c44427 100644
--- a/drivers/iio/industrialio-event.c
+++ b/drivers/iio/industrialio-event.c
@@ -18,6 +18,7 @@
#include <linux/uaccess.h>
#include <linux/wait.h>
#include <linux/iio/iio.h>
+#include <linux/iio/iio-opaque.h>
#include "iio_core.h"
#include <linux/iio/sysfs.h>
#include <linux/iio/events.h>
@@ -62,7 +63,8 @@ bool iio_event_enabled(const struct iio_event_interface *ev_int)
**/
int iio_push_event(struct iio_dev *indio_dev, u64 ev_code, s64 timestamp)
{
- struct iio_event_interface *ev_int = indio_dev->event_interface;
+ struct iio_dev_opaque *iio_dev_opaque = to_iio_dev_opaque(indio_dev);
+ struct iio_event_interface *ev_int = iio_dev_opaque->event_interface;
struct iio_event_data ev;
int copied;
@@ -96,7 +98,8 @@ static __poll_t iio_event_poll(struct file *filep,
struct poll_table_struct *wait)
{
struct iio_dev *indio_dev = filep->private_data;
- struct iio_event_interface *ev_int = indio_dev->event_interface;
+ struct iio_dev_opaque *iio_dev_opaque = to_iio_dev_opaque(indio_dev);
+ struct iio_event_interface *ev_int = iio_dev_opaque->event_interface;
__poll_t events = 0;
if (!indio_dev->info)
@@ -116,7 +119,8 @@ static ssize_t iio_event_chrdev_read(struct file *filep,
loff_t *f_ps)
{
struct iio_dev *indio_dev = filep->private_data;
- struct iio_event_interface *ev_int = indio_dev->event_interface;
+ struct iio_dev_opaque *iio_dev_opaque = to_iio_dev_opaque(indio_dev);
+ struct iio_event_interface *ev_int = iio_dev_opaque->event_interface;
unsigned int copied;
int ret;
@@ -165,7 +169,8 @@ static ssize_t iio_event_chrdev_read(struct file *filep,
static int iio_event_chrdev_release(struct inode *inode, struct file *filep)
{
struct iio_dev *indio_dev = filep->private_data;
- struct iio_event_interface *ev_int = indio_dev->event_interface;
+ struct iio_dev_opaque *iio_dev_opaque = to_iio_dev_opaque(indio_dev);
+ struct iio_event_interface *ev_int = iio_dev_opaque->event_interface;
clear_bit(IIO_BUSY_BIT_POS, &ev_int->flags);
@@ -184,7 +189,8 @@ static const struct file_operations iio_event_chrdev_fileops = {
int iio_event_getfd(struct iio_dev *indio_dev)
{
- struct iio_event_interface *ev_int = indio_dev->event_interface;
+ struct iio_dev_opaque *iio_dev_opaque = to_iio_dev_opaque(indio_dev);
+ struct iio_event_interface *ev_int = iio_dev_opaque->event_interface;
int fd;
if (ev_int == NULL)
@@ -343,6 +349,7 @@ static int iio_device_add_event(struct iio_dev *indio_dev,
enum iio_event_type type, enum iio_event_direction dir,
enum iio_shared_by shared_by, const unsigned long *mask)
{
+ struct iio_dev_opaque *iio_dev_opaque = to_iio_dev_opaque(indio_dev);
ssize_t (*show)(struct device *, struct device_attribute *, char *);
ssize_t (*store)(struct device *, struct device_attribute *,
const char *, size_t);
@@ -376,7 +383,7 @@ static int iio_device_add_event(struct iio_dev *indio_dev,
ret = __iio_add_chan_devattr(postfix, chan, show, store,
(i << 16) | spec_index, shared_by, &indio_dev->dev,
- &indio_dev->event_interface->dev_attr_list);
+ &iio_dev_opaque->event_interface->dev_attr_list);
kfree(postfix);
if ((ret == -EBUSY) && (shared_by != IIO_SEPARATE))
@@ -469,6 +476,7 @@ static void iio_setup_ev_int(struct iio_event_interface *ev_int)
static const char *iio_event_group_name = "events";
int iio_device_register_eventset(struct iio_dev *indio_dev)
{
+ struct iio_dev_opaque *iio_dev_opaque = to_iio_dev_opaque(indio_dev);
struct iio_dev_attr *p;
int ret = 0, attrcount_orig = 0, attrcount, attrn;
struct attribute **attr;
@@ -477,14 +485,14 @@ int iio_device_register_eventset(struct iio_dev *indio_dev)
iio_check_for_dynamic_events(indio_dev)))
return 0;
- indio_dev->event_interface =
+ iio_dev_opaque->event_interface =
kzalloc(sizeof(struct iio_event_interface), GFP_KERNEL);
- if (indio_dev->event_interface == NULL)
+ if (iio_dev_opaque->event_interface == NULL)
return -ENOMEM;
- INIT_LIST_HEAD(&indio_dev->event_interface->dev_attr_list);
+ INIT_LIST_HEAD(&iio_dev_opaque->event_interface->dev_attr_list);
- iio_setup_ev_int(indio_dev->event_interface);
+ iio_setup_ev_int(iio_dev_opaque->event_interface);
if (indio_dev->info->event_attrs != NULL) {
attr = indio_dev->info->event_attrs->attrs;
while (*attr++ != NULL)
@@ -498,35 +506,35 @@ int iio_device_register_eventset(struct iio_dev *indio_dev)
attrcount += ret;
}
- indio_dev->event_interface->group.name = iio_event_group_name;
- indio_dev->event_interface->group.attrs = kcalloc(attrcount + 1,
- sizeof(indio_dev->event_interface->group.attrs[0]),
+ iio_dev_opaque->event_interface->group.name = iio_event_group_name;
+ iio_dev_opaque->event_interface->group.attrs = kcalloc(attrcount + 1,
+ sizeof(iio_dev_opaque->event_interface->group.attrs[0]),
GFP_KERNEL);
- if (indio_dev->event_interface->group.attrs == NULL) {
+ if (iio_dev_opaque->event_interface->group.attrs == NULL) {
ret = -ENOMEM;
goto error_free_setup_event_lines;
}
if (indio_dev->info->event_attrs)
- memcpy(indio_dev->event_interface->group.attrs,
+ memcpy(iio_dev_opaque->event_interface->group.attrs,
indio_dev->info->event_attrs->attrs,
- sizeof(indio_dev->event_interface->group.attrs[0])
+ sizeof(iio_dev_opaque->event_interface->group.attrs[0])
*attrcount_orig);
attrn = attrcount_orig;
/* Add all elements from the list. */
list_for_each_entry(p,
- &indio_dev->event_interface->dev_attr_list,
+ &iio_dev_opaque->event_interface->dev_attr_list,
l)
- indio_dev->event_interface->group.attrs[attrn++] =
+ iio_dev_opaque->event_interface->group.attrs[attrn++] =
&p->dev_attr.attr;
indio_dev->groups[indio_dev->groupcounter++] =
- &indio_dev->event_interface->group;
+ &iio_dev_opaque->event_interface->group;
return 0;
error_free_setup_event_lines:
- iio_free_chan_devattr_list(&indio_dev->event_interface->dev_attr_list);
- kfree(indio_dev->event_interface);
- indio_dev->event_interface = NULL;
+ iio_free_chan_devattr_list(&iio_dev_opaque->event_interface->dev_attr_list);
+ kfree(iio_dev_opaque->event_interface);
+ iio_dev_opaque->event_interface = NULL;
return ret;
}
@@ -539,16 +547,20 @@ error_free_setup_event_lines:
*/
void iio_device_wakeup_eventset(struct iio_dev *indio_dev)
{
- if (indio_dev->event_interface == NULL)
+ struct iio_dev_opaque *iio_dev_opaque = to_iio_dev_opaque(indio_dev);
+
+ if (iio_dev_opaque->event_interface == NULL)
return;
- wake_up(&indio_dev->event_interface->wait);
+ wake_up(&iio_dev_opaque->event_interface->wait);
}
void iio_device_unregister_eventset(struct iio_dev *indio_dev)
{
- if (indio_dev->event_interface == NULL)
+ struct iio_dev_opaque *iio_dev_opaque = to_iio_dev_opaque(indio_dev);
+
+ if (iio_dev_opaque->event_interface == NULL)
return;
- iio_free_chan_devattr_list(&indio_dev->event_interface->dev_attr_list);
- kfree(indio_dev->event_interface->group.attrs);
- kfree(indio_dev->event_interface);
+ iio_free_chan_devattr_list(&iio_dev_opaque->event_interface->dev_attr_list);
+ kfree(iio_dev_opaque->event_interface->group.attrs);
+ kfree(iio_dev_opaque->event_interface);
}
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-04 08:01:36 +0300