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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.c160
1 files changed, 28 insertions, 132 deletions
diff --git a/drivers/iio/industrialio-event.c b/drivers/iio/industrialio-event.c
index c10eab64bc05..c9c1419fe6e0 100644
--- a/drivers/iio/industrialio-event.c
+++ b/drivers/iio/industrialio-event.c
@@ -42,6 +42,12 @@ struct iio_event_interface {
struct attribute_group group;
};
+/**
+ * iio_push_event() - try to add event to the list for userspace reading
+ * @indio_dev: IIO device structure
+ * @ev_code: What event
+ * @timestamp: When the event occurred
+ **/
int iio_push_event(struct iio_dev *indio_dev, u64 ev_code, s64 timestamp)
{
struct iio_event_interface *ev_int = indio_dev->event_interface;
@@ -236,13 +242,9 @@ static ssize_t iio_ev_state_store(struct device *dev,
if (ret < 0)
return ret;
- if (indio_dev->info->write_event_config)
- ret = indio_dev->info->write_event_config(indio_dev,
- this_attr->address, val);
- else
- ret = indio_dev->info->write_event_config_new(indio_dev,
- this_attr->c, iio_ev_attr_type(this_attr),
- iio_ev_attr_dir(this_attr), val);
+ ret = indio_dev->info->write_event_config(indio_dev,
+ this_attr->c, iio_ev_attr_type(this_attr),
+ iio_ev_attr_dir(this_attr), val);
return (ret < 0) ? ret : len;
}
@@ -255,13 +257,9 @@ static ssize_t iio_ev_state_show(struct device *dev,
struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
int val;
- if (indio_dev->info->read_event_config)
- val = indio_dev->info->read_event_config(indio_dev,
- this_attr->address);
- else
- val = indio_dev->info->read_event_config_new(indio_dev,
- this_attr->c, iio_ev_attr_type(this_attr),
- iio_ev_attr_dir(this_attr));
+ val = indio_dev->info->read_event_config(indio_dev,
+ this_attr->c, iio_ev_attr_type(this_attr),
+ iio_ev_attr_dir(this_attr));
if (val < 0)
return val;
else
@@ -277,21 +275,13 @@ static ssize_t iio_ev_value_show(struct device *dev,
int val, val2;
int ret;
- if (indio_dev->info->read_event_value) {
- ret = indio_dev->info->read_event_value(indio_dev,
- this_attr->address, &val);
- if (ret < 0)
- return ret;
- return sprintf(buf, "%d\n", val);
- } else {
- ret = indio_dev->info->read_event_value_new(indio_dev,
- this_attr->c, iio_ev_attr_type(this_attr),
- iio_ev_attr_dir(this_attr), iio_ev_attr_info(this_attr),
- &val, &val2);
- if (ret < 0)
- return ret;
- return iio_format_value(buf, ret, val, val2);
- }
+ ret = indio_dev->info->read_event_value(indio_dev,
+ this_attr->c, iio_ev_attr_type(this_attr),
+ iio_ev_attr_dir(this_attr), iio_ev_attr_info(this_attr),
+ &val, &val2);
+ if (ret < 0)
+ return ret;
+ return iio_format_value(buf, ret, val, val2);
}
static ssize_t iio_ev_value_store(struct device *dev,
@@ -304,25 +294,16 @@ static ssize_t iio_ev_value_store(struct device *dev,
int val, val2;
int ret;
- if (!indio_dev->info->write_event_value &&
- !indio_dev->info->write_event_value_new)
+ if (!indio_dev->info->write_event_value)
return -EINVAL;
- if (indio_dev->info->write_event_value) {
- ret = kstrtoint(buf, 10, &val);
- if (ret)
- return ret;
- ret = indio_dev->info->write_event_value(indio_dev,
- this_attr->address, val);
- } else {
- ret = iio_str_to_fixpoint(buf, 100000, &val, &val2);
- if (ret)
- return ret;
- ret = indio_dev->info->write_event_value_new(indio_dev,
- this_attr->c, iio_ev_attr_type(this_attr),
- iio_ev_attr_dir(this_attr), iio_ev_attr_info(this_attr),
- val, val2);
- }
+ ret = iio_str_to_fixpoint(buf, 100000, &val, &val2);
+ if (ret)
+ return ret;
+ ret = indio_dev->info->write_event_value(indio_dev,
+ this_attr->c, iio_ev_attr_type(this_attr),
+ iio_ev_attr_dir(this_attr), iio_ev_attr_info(this_attr),
+ val, val2);
if (ret < 0)
return ret;
@@ -371,7 +352,7 @@ static int iio_device_add_event(struct iio_dev *indio_dev,
return attrcount;
}
-static int iio_device_add_event_sysfs_new(struct iio_dev *indio_dev,
+static int iio_device_add_event_sysfs(struct iio_dev *indio_dev,
struct iio_chan_spec const *chan)
{
int ret = 0, i, attrcount = 0;
@@ -414,89 +395,6 @@ error_ret:
return ret;
}
-static int iio_device_add_event_sysfs_old(struct iio_dev *indio_dev,
- struct iio_chan_spec const *chan)
-{
- int ret = 0, i, attrcount = 0;
- u64 mask = 0;
- char *postfix;
- if (!chan->event_mask)
- return 0;
-
- for_each_set_bit(i, &chan->event_mask, sizeof(chan->event_mask)*8) {
- postfix = kasprintf(GFP_KERNEL, "%s_%s_en",
- iio_ev_type_text[i/IIO_EV_DIR_MAX],
- iio_ev_dir_text[i%IIO_EV_DIR_MAX]);
- if (postfix == NULL) {
- ret = -ENOMEM;
- goto error_ret;
- }
- if (chan->modified)
- mask = IIO_MOD_EVENT_CODE(chan->type, 0, chan->channel2,
- i/IIO_EV_DIR_MAX,
- i%IIO_EV_DIR_MAX);
- else if (chan->differential)
- mask = IIO_EVENT_CODE(chan->type,
- 0, 0,
- i%IIO_EV_DIR_MAX,
- i/IIO_EV_DIR_MAX,
- 0,
- chan->channel,
- chan->channel2);
- else
- mask = IIO_UNMOD_EVENT_CODE(chan->type,
- chan->channel,
- i/IIO_EV_DIR_MAX,
- i%IIO_EV_DIR_MAX);
-
- ret = __iio_add_chan_devattr(postfix,
- chan,
- &iio_ev_state_show,
- iio_ev_state_store,
- mask,
- 0,
- &indio_dev->dev,
- &indio_dev->event_interface->
- dev_attr_list);
- kfree(postfix);
- if (ret)
- goto error_ret;
- attrcount++;
- postfix = kasprintf(GFP_KERNEL, "%s_%s_value",
- iio_ev_type_text[i/IIO_EV_DIR_MAX],
- iio_ev_dir_text[i%IIO_EV_DIR_MAX]);
- if (postfix == NULL) {
- ret = -ENOMEM;
- goto error_ret;
- }
- ret = __iio_add_chan_devattr(postfix, chan,
- iio_ev_value_show,
- iio_ev_value_store,
- mask,
- 0,
- &indio_dev->dev,
- &indio_dev->event_interface->
- dev_attr_list);
- kfree(postfix);
- if (ret)
- goto error_ret;
- attrcount++;
- }
- ret = attrcount;
-error_ret:
- return ret;
-}
-
-
-static int iio_device_add_event_sysfs(struct iio_dev *indio_dev,
- struct iio_chan_spec const *chan)
-{
- if (chan->event_mask)
- return iio_device_add_event_sysfs_old(indio_dev, chan);
- else
- return iio_device_add_event_sysfs_new(indio_dev, chan);
-}
-
static inline int __iio_add_event_config_attrs(struct iio_dev *indio_dev)
{
int j, ret, attrcount = 0;
@@ -517,8 +415,6 @@ static bool iio_check_for_dynamic_events(struct iio_dev *indio_dev)
int j;
for (j = 0; j < indio_dev->num_channels; j++) {
- if (indio_dev->channels[j].event_mask != 0)
- return true;
if (indio_dev->channels[j].num_event_specs != 0)
return true;
}
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