rb->access->unmark_in_use(rb);
}
-void iio_buffer_init(struct iio_buffer *buffer, struct iio_dev *dev_info)
+void iio_buffer_init(struct iio_buffer *buffer, struct iio_dev *indio_dev)
{
- buffer->indio_dev = dev_info;
+ buffer->indio_dev = indio_dev;
init_waitqueue_head(&buffer->pollq);
}
EXPORT_SYMBOL(iio_buffer_init);
char *buf)
{
int ret;
- struct iio_dev *dev_info = dev_get_drvdata(dev);
+ struct iio_dev *indio_dev = dev_get_drvdata(dev);
- ret = iio_scan_mask_query(dev_info->buffer,
+ ret = iio_scan_mask_query(indio_dev->buffer,
to_iio_dev_attr(attr)->address);
if (ret < 0)
return ret;
struct device_attribute *attr,
char *buf)
{
- struct iio_dev *dev_info = dev_get_drvdata(dev);
- return sprintf(buf, "%d\n", dev_info->buffer->scan_timestamp);
+ struct iio_dev *indio_dev = dev_get_drvdata(dev);
+ return sprintf(buf, "%d\n", indio_dev->buffer->scan_timestamp);
}
static ssize_t iio_scan_el_ts_store(struct device *dev,
int ret;
bool requested_state, current_state;
int previous_mode;
- struct iio_dev *dev_info = dev_get_drvdata(dev);
- struct iio_buffer *buffer = dev_info->buffer;
+ struct iio_dev *indio_dev = dev_get_drvdata(dev);
+ struct iio_buffer *buffer = indio_dev->buffer;
- mutex_lock(&dev_info->mlock);
- previous_mode = dev_info->currentmode;
+ mutex_lock(&indio_dev->mlock);
+ previous_mode = indio_dev->currentmode;
requested_state = !(buf[0] == '0');
current_state = !!(previous_mode & INDIO_ALL_BUFFER_MODES);
if (current_state == requested_state) {
}
if (requested_state) {
if (buffer->setup_ops->preenable) {
- ret = buffer->setup_ops->preenable(dev_info);
+ ret = buffer->setup_ops->preenable(indio_dev);
if (ret) {
printk(KERN_ERR
"Buffer not started:"
if (buffer->access->mark_in_use)
buffer->access->mark_in_use(buffer);
/* Definitely possible for devices to support both of these.*/
- if (dev_info->modes & INDIO_BUFFER_TRIGGERED) {
- if (!dev_info->trig) {
+ if (indio_dev->modes & INDIO_BUFFER_TRIGGERED) {
+ if (!indio_dev->trig) {
printk(KERN_INFO
"Buffer not started: no trigger\n");
ret = -EINVAL;
buffer->access->unmark_in_use(buffer);
goto error_ret;
}
- dev_info->currentmode = INDIO_BUFFER_TRIGGERED;
- } else if (dev_info->modes & INDIO_BUFFER_HARDWARE)
- dev_info->currentmode = INDIO_BUFFER_HARDWARE;
+ indio_dev->currentmode = INDIO_BUFFER_TRIGGERED;
+ } else if (indio_dev->modes & INDIO_BUFFER_HARDWARE)
+ indio_dev->currentmode = INDIO_BUFFER_HARDWARE;
else { /* should never be reached */
ret = -EINVAL;
goto error_ret;
}
if (buffer->setup_ops->postenable) {
- ret = buffer->setup_ops->postenable(dev_info);
+ ret = buffer->setup_ops->postenable(indio_dev);
if (ret) {
printk(KERN_INFO
"Buffer not started:"
"postenable failed\n");
if (buffer->access->unmark_in_use)
buffer->access->unmark_in_use(buffer);
- dev_info->currentmode = previous_mode;
+ indio_dev->currentmode = previous_mode;
if (buffer->setup_ops->postdisable)
buffer->setup_ops->
- postdisable(dev_info);
+ postdisable(indio_dev);
goto error_ret;
}
}
} else {
if (buffer->setup_ops->predisable) {
- ret = buffer->setup_ops->predisable(dev_info);
+ ret = buffer->setup_ops->predisable(indio_dev);
if (ret)
goto error_ret;
}
if (buffer->access->unmark_in_use)
buffer->access->unmark_in_use(buffer);
- dev_info->currentmode = INDIO_DIRECT_MODE;
+ indio_dev->currentmode = INDIO_DIRECT_MODE;
if (buffer->setup_ops->postdisable) {
- ret = buffer->setup_ops->postdisable(dev_info);
+ ret = buffer->setup_ops->postdisable(indio_dev);
if (ret)
goto error_ret;
}
}
done:
- mutex_unlock(&dev_info->mlock);
+ mutex_unlock(&indio_dev->mlock);
return len;
error_ret:
- mutex_unlock(&dev_info->mlock);
+ mutex_unlock(&indio_dev->mlock);
return ret;
}
EXPORT_SYMBOL(iio_buffer_store_enable);
struct device_attribute *attr,
char *buf)
{
- struct iio_dev *dev_info = dev_get_drvdata(dev);
- return sprintf(buf, "%d\n", !!(dev_info->currentmode
+ struct iio_dev *indio_dev = dev_get_drvdata(dev);
+ return sprintf(buf, "%d\n", !!(indio_dev->currentmode
& INDIO_ALL_BUFFER_MODES));
}
EXPORT_SYMBOL(iio_buffer_show_enable);
**/
int iio_scan_mask_set(struct iio_buffer *buffer, int bit)
{
- struct iio_dev *dev_info = buffer->indio_dev;
+ struct iio_dev *indio_dev = buffer->indio_dev;
unsigned long *mask;
unsigned long *trialmask;
trialmask = kmalloc(sizeof(*trialmask)*
- BITS_TO_LONGS(dev_info->masklength),
+ BITS_TO_LONGS(indio_dev->masklength),
GFP_KERNEL);
if (trialmask == NULL)
return -ENOMEM;
- if (!dev_info->masklength) {
+ if (!indio_dev->masklength) {
WARN_ON("trying to set scanmask prior to registering buffer\n");
kfree(trialmask);
return -EINVAL;
}
- bitmap_copy(trialmask, buffer->scan_mask, dev_info->masklength);
+ bitmap_copy(trialmask, buffer->scan_mask, indio_dev->masklength);
set_bit(bit, trialmask);
- if (dev_info->available_scan_masks) {
- mask = iio_scan_mask_match(dev_info->available_scan_masks,
- dev_info->masklength,
+ if (indio_dev->available_scan_masks) {
+ mask = iio_scan_mask_match(indio_dev->available_scan_masks,
+ indio_dev->masklength,
trialmask);
if (!mask) {
kfree(trialmask);
return -EINVAL;
}
}
- bitmap_copy(buffer->scan_mask, trialmask, dev_info->masklength);
+ bitmap_copy(buffer->scan_mask, trialmask, indio_dev->masklength);
buffer->scan_count++;
kfree(trialmask);
int iio_scan_mask_query(struct iio_buffer *buffer, int bit)
{
- struct iio_dev *dev_info = buffer->indio_dev;
+ struct iio_dev *indio_dev = buffer->indio_dev;
long *mask;
- if (bit > dev_info->masklength)
+ if (bit > indio_dev->masklength)
return -EINVAL;
if (!buffer->scan_mask)
return 0;
- if (dev_info->available_scan_masks)
- mask = iio_scan_mask_match(dev_info->available_scan_masks,
- dev_info->masklength,
+ if (indio_dev->available_scan_masks)
+ mask = iio_scan_mask_match(indio_dev->available_scan_masks,
+ indio_dev->masklength,
buffer->scan_mask);
else
mask = buffer->scan_mask;
struct attribute_group group;
};
-int iio_push_event(struct iio_dev *dev_info, u64 ev_code, s64 timestamp)
+int iio_push_event(struct iio_dev *indio_dev, u64 ev_code, s64 timestamp)
{
- struct iio_event_interface *ev_int = dev_info->event_interface;
+ struct iio_event_interface *ev_int = indio_dev->event_interface;
struct iio_detected_event_list *ev;
int ret = 0;
return ret;
}
-static int iio_device_add_channel_sysfs(struct iio_dev *dev_info,
+static int iio_device_add_channel_sysfs(struct iio_dev *indio_dev,
struct iio_chan_spec const *chan)
{
int ret, i, attrcount = 0;
&iio_write_channel_info : NULL),
0,
0,
- &dev_info->dev,
- &dev_info->channel_attr_list);
+ &indio_dev->dev,
+ &indio_dev->channel_attr_list);
if (ret)
goto error_ret;
attrcount++;
&iio_write_channel_info,
(1 << i),
!(i%2),
- &dev_info->dev,
- &dev_info->channel_attr_list);
+ &indio_dev->dev,
+ &indio_dev->channel_attr_list);
if (ret == -EBUSY && (i%2 == 0)) {
ret = 0;
continue;
return ret;
}
-static void iio_device_remove_and_free_read_attr(struct iio_dev *dev_info,
+static void iio_device_remove_and_free_read_attr(struct iio_dev *indio_dev,
struct iio_dev_attr *p)
{
kfree(p->dev_attr.attr.name);
static DEVICE_ATTR(name, S_IRUGO, iio_show_dev_name, NULL);
-static int iio_device_register_sysfs(struct iio_dev *dev_info)
+static int iio_device_register_sysfs(struct iio_dev *indio_dev)
{
int i, ret = 0, attrcount, attrn, attrcount_orig = 0;
struct iio_dev_attr *p, *n;
struct attribute **attr;
/* First count elements in any existing group */
- if (dev_info->info->attrs) {
- attr = dev_info->info->attrs->attrs;
+ if (indio_dev->info->attrs) {
+ attr = indio_dev->info->attrs->attrs;
while (*attr++ != NULL)
attrcount_orig++;
}
* New channel registration method - relies on the fact a group does
* not need to be initialized if it is name is NULL.
*/
- INIT_LIST_HEAD(&dev_info->channel_attr_list);
- if (dev_info->channels)
- for (i = 0; i < dev_info->num_channels; i++) {
- ret = iio_device_add_channel_sysfs(dev_info,
- &dev_info
+ INIT_LIST_HEAD(&indio_dev->channel_attr_list);
+ if (indio_dev->channels)
+ for (i = 0; i < indio_dev->num_channels; i++) {
+ ret = iio_device_add_channel_sysfs(indio_dev,
+ &indio_dev
->channels[i]);
if (ret < 0)
goto error_clear_attrs;
attrcount += ret;
}
- if (dev_info->name)
+ if (indio_dev->name)
attrcount++;
- dev_info->chan_attr_group.attrs
- = kzalloc(sizeof(dev_info->chan_attr_group.attrs[0])*
+ indio_dev->chan_attr_group.attrs
+ = kzalloc(sizeof(indio_dev->chan_attr_group.attrs[0])*
(attrcount + 1),
GFP_KERNEL);
- if (dev_info->chan_attr_group.attrs == NULL) {
+ if (indio_dev->chan_attr_group.attrs == NULL) {
ret = -ENOMEM;
goto error_clear_attrs;
}
/* Copy across original attributes */
- if (dev_info->info->attrs)
- memcpy(dev_info->chan_attr_group.attrs,
- dev_info->info->attrs->attrs,
- sizeof(dev_info->chan_attr_group.attrs[0])
+ if (indio_dev->info->attrs)
+ memcpy(indio_dev->chan_attr_group.attrs,
+ indio_dev->info->attrs->attrs,
+ sizeof(indio_dev->chan_attr_group.attrs[0])
*attrcount_orig);
attrn = attrcount_orig;
/* Add all elements from the list. */
- list_for_each_entry(p, &dev_info->channel_attr_list, l)
- dev_info->chan_attr_group.attrs[attrn++] = &p->dev_attr.attr;
- if (dev_info->name)
- dev_info->chan_attr_group.attrs[attrn++] = &dev_attr_name.attr;
+ list_for_each_entry(p, &indio_dev->channel_attr_list, l)
+ indio_dev->chan_attr_group.attrs[attrn++] = &p->dev_attr.attr;
+ if (indio_dev->name)
+ indio_dev->chan_attr_group.attrs[attrn++] = &dev_attr_name.attr;
- dev_info->groups[dev_info->groupcounter++] =
- &dev_info->chan_attr_group;
+ indio_dev->groups[indio_dev->groupcounter++] =
+ &indio_dev->chan_attr_group;
return 0;
error_clear_attrs:
list_for_each_entry_safe(p, n,
- &dev_info->channel_attr_list, l) {
+ &indio_dev->channel_attr_list, l) {
list_del(&p->l);
- iio_device_remove_and_free_read_attr(dev_info, p);
+ iio_device_remove_and_free_read_attr(indio_dev, p);
}
return ret;
}
-static void iio_device_unregister_sysfs(struct iio_dev *dev_info)
+static void iio_device_unregister_sysfs(struct iio_dev *indio_dev)
{
struct iio_dev_attr *p, *n;
- list_for_each_entry_safe(p, n, &dev_info->channel_attr_list, l) {
+ list_for_each_entry_safe(p, n, &indio_dev->channel_attr_list, l) {
list_del(&p->l);
- iio_device_remove_and_free_read_attr(dev_info, p);
+ iio_device_remove_and_free_read_attr(indio_dev, p);
}
- kfree(dev_info->chan_attr_group.attrs);
+ kfree(indio_dev->chan_attr_group.attrs);
}
static const char * const iio_ev_type_text[] = {
return len;
}
-static int iio_device_add_event_sysfs(struct iio_dev *dev_info,
+static int iio_device_add_event_sysfs(struct iio_dev *indio_dev,
struct iio_chan_spec const *chan)
{
int ret = 0, i, attrcount = 0;
iio_ev_state_store,
mask,
0,
- &dev_info->dev,
- &dev_info->event_interface->
+ &indio_dev->dev,
+ &indio_dev->event_interface->
dev_attr_list);
kfree(postfix);
if (ret)
iio_ev_value_store,
mask,
0,
- &dev_info->dev,
- &dev_info->event_interface->
+ &indio_dev->dev,
+ &indio_dev->event_interface->
dev_attr_list);
kfree(postfix);
if (ret)
return ret;
}
-static inline void __iio_remove_event_config_attrs(struct iio_dev *dev_info)
+static inline void __iio_remove_event_config_attrs(struct iio_dev *indio_dev)
{
struct iio_dev_attr *p, *n;
list_for_each_entry_safe(p, n,
- &dev_info->event_interface->
+ &indio_dev->event_interface->
dev_attr_list, l) {
kfree(p->dev_attr.attr.name);
kfree(p);
}
}
-static inline int __iio_add_event_config_attrs(struct iio_dev *dev_info)
+static inline int __iio_add_event_config_attrs(struct iio_dev *indio_dev)
{
int j, ret, attrcount = 0;
- INIT_LIST_HEAD(&dev_info->event_interface->dev_attr_list);
+ INIT_LIST_HEAD(&indio_dev->event_interface->dev_attr_list);
/* Dynically created from the channels array */
- for (j = 0; j < dev_info->num_channels; j++) {
- ret = iio_device_add_event_sysfs(dev_info,
- &dev_info->channels[j]);
+ for (j = 0; j < indio_dev->num_channels; j++) {
+ ret = iio_device_add_event_sysfs(indio_dev,
+ &indio_dev->channels[j]);
if (ret < 0)
goto error_clear_attrs;
attrcount += ret;
return attrcount;
error_clear_attrs:
- __iio_remove_event_config_attrs(dev_info);
+ __iio_remove_event_config_attrs(indio_dev);
return ret;
}
-static bool iio_check_for_dynamic_events(struct iio_dev *dev_info)
+static bool iio_check_for_dynamic_events(struct iio_dev *indio_dev)
{
int j;
- for (j = 0; j < dev_info->num_channels; j++)
- if (dev_info->channels[j].event_mask != 0)
+ for (j = 0; j < indio_dev->num_channels; j++)
+ if (indio_dev->channels[j].event_mask != 0)
return true;
return false;
}
}
static const char *iio_event_group_name = "events";
-static int iio_device_register_eventset(struct iio_dev *dev_info)
+static int iio_device_register_eventset(struct iio_dev *indio_dev)
{
struct iio_dev_attr *p;
int ret = 0, attrcount_orig = 0, attrcount, attrn;
struct attribute **attr;
- if (!(dev_info->info->event_attrs ||
- iio_check_for_dynamic_events(dev_info)))
+ if (!(indio_dev->info->event_attrs ||
+ iio_check_for_dynamic_events(indio_dev)))
return 0;
- dev_info->event_interface =
+ indio_dev->event_interface =
kzalloc(sizeof(struct iio_event_interface), GFP_KERNEL);
- if (dev_info->event_interface == NULL) {
+ if (indio_dev->event_interface == NULL) {
ret = -ENOMEM;
goto error_ret;
}
- iio_setup_ev_int(dev_info->event_interface);
- if (dev_info->info->event_attrs != NULL) {
- attr = dev_info->info->event_attrs->attrs;
+ iio_setup_ev_int(indio_dev->event_interface);
+ if (indio_dev->info->event_attrs != NULL) {
+ attr = indio_dev->info->event_attrs->attrs;
while (*attr++ != NULL)
attrcount_orig++;
}
attrcount = attrcount_orig;
- if (dev_info->channels) {
- ret = __iio_add_event_config_attrs(dev_info);
+ if (indio_dev->channels) {
+ ret = __iio_add_event_config_attrs(indio_dev);
if (ret < 0)
goto error_free_setup_event_lines;
attrcount += ret;
}
- dev_info->event_interface->group.name = iio_event_group_name;
- dev_info->event_interface->group.attrs =
- kzalloc(sizeof(dev_info->event_interface->group.attrs[0])
+ indio_dev->event_interface->group.name = iio_event_group_name;
+ indio_dev->event_interface->group.attrs =
+ kzalloc(sizeof(indio_dev->event_interface->group.attrs[0])
*(attrcount + 1),
GFP_KERNEL);
- if (dev_info->event_interface->group.attrs == NULL) {
+ if (indio_dev->event_interface->group.attrs == NULL) {
ret = -ENOMEM;
goto error_free_setup_event_lines;
}
- if (dev_info->info->event_attrs)
- memcpy(dev_info->event_interface->group.attrs,
- dev_info->info->event_attrs->attrs,
- sizeof(dev_info->event_interface->group.attrs[0])
+ if (indio_dev->info->event_attrs)
+ memcpy(indio_dev->event_interface->group.attrs,
+ indio_dev->info->event_attrs->attrs,
+ sizeof(indio_dev->event_interface->group.attrs[0])
*attrcount_orig);
attrn = attrcount_orig;
/* Add all elements from the list. */
list_for_each_entry(p,
- &dev_info->event_interface->dev_attr_list,
+ &indio_dev->event_interface->dev_attr_list,
l)
- dev_info->event_interface->group.attrs[attrn++] =
+ indio_dev->event_interface->group.attrs[attrn++] =
&p->dev_attr.attr;
- dev_info->groups[dev_info->groupcounter++] =
- &dev_info->event_interface->group;
+ indio_dev->groups[indio_dev->groupcounter++] =
+ &indio_dev->event_interface->group;
return 0;
error_free_setup_event_lines:
- __iio_remove_event_config_attrs(dev_info);
- kfree(dev_info->event_interface);
+ __iio_remove_event_config_attrs(indio_dev);
+ kfree(indio_dev->event_interface);
error_ret:
return ret;
}
-static void iio_device_unregister_eventset(struct iio_dev *dev_info)
+static void iio_device_unregister_eventset(struct iio_dev *indio_dev)
{
- if (dev_info->event_interface == NULL)
+ if (indio_dev->event_interface == NULL)
return;
- __iio_remove_event_config_attrs(dev_info);
- kfree(dev_info->event_interface->group.attrs);
- kfree(dev_info->event_interface);
+ __iio_remove_event_config_attrs(indio_dev);
+ kfree(indio_dev->event_interface->group.attrs);
+ kfree(indio_dev->event_interface);
}
static void iio_dev_release(struct device *device)
{
- struct iio_dev *dev_info = container_of(device, struct iio_dev, dev);
- cdev_del(&dev_info->chrdev);
- if (dev_info->modes & INDIO_BUFFER_TRIGGERED)
- iio_device_unregister_trigger_consumer(dev_info);
- iio_device_unregister_eventset(dev_info);
- iio_device_unregister_sysfs(dev_info);
- ida_simple_remove(&iio_ida, dev_info->id);
- kfree(dev_info);
+ struct iio_dev *indio_dev = container_of(device, struct iio_dev, dev);
+ cdev_del(&indio_dev->chrdev);
+ if (indio_dev->modes & INDIO_BUFFER_TRIGGERED)
+ iio_device_unregister_trigger_consumer(indio_dev);
+ iio_device_unregister_eventset(indio_dev);
+ iio_device_unregister_sysfs(indio_dev);
+ ida_simple_remove(&iio_ida, indio_dev->id);
+ kfree(indio_dev);
}
static struct device_type iio_dev_type = {
**/
static int iio_chrdev_open(struct inode *inode, struct file *filp)
{
- struct iio_dev *dev_info = container_of(inode->i_cdev,
+ struct iio_dev *indio_dev = container_of(inode->i_cdev,
struct iio_dev, chrdev);
- filp->private_data = dev_info;
+ filp->private_data = indio_dev;
- return iio_chrdev_buffer_open(dev_info);
+ return iio_chrdev_buffer_open(indio_dev);
}
/**
.compat_ioctl = iio_ioctl,
};
-int iio_device_register(struct iio_dev *dev_info)
+int iio_device_register(struct iio_dev *indio_dev)
{
int ret;
/* configure elements for the chrdev */
- dev_info->dev.devt = MKDEV(MAJOR(iio_devt), dev_info->id);
+ indio_dev->dev.devt = MKDEV(MAJOR(iio_devt), indio_dev->id);
- ret = iio_device_register_sysfs(dev_info);
+ ret = iio_device_register_sysfs(indio_dev);
if (ret) {
- dev_err(dev_info->dev.parent,
+ dev_err(indio_dev->dev.parent,
"Failed to register sysfs interfaces\n");
goto error_ret;
}
- ret = iio_device_register_eventset(dev_info);
+ ret = iio_device_register_eventset(indio_dev);
if (ret) {
- dev_err(dev_info->dev.parent,
+ dev_err(indio_dev->dev.parent,
"Failed to register event set\n");
goto error_free_sysfs;
}
- if (dev_info->modes & INDIO_BUFFER_TRIGGERED)
- iio_device_register_trigger_consumer(dev_info);
+ if (indio_dev->modes & INDIO_BUFFER_TRIGGERED)
+ iio_device_register_trigger_consumer(indio_dev);
- ret = device_add(&dev_info->dev);
+ ret = device_add(&indio_dev->dev);
if (ret < 0)
goto error_unreg_eventset;
- cdev_init(&dev_info->chrdev, &iio_buffer_fileops);
- dev_info->chrdev.owner = dev_info->info->driver_module;
- ret = cdev_add(&dev_info->chrdev, dev_info->dev.devt, 1);
+ cdev_init(&indio_dev->chrdev, &iio_buffer_fileops);
+ indio_dev->chrdev.owner = indio_dev->info->driver_module;
+ ret = cdev_add(&indio_dev->chrdev, indio_dev->dev.devt, 1);
if (ret < 0)
goto error_del_device;
return 0;
error_del_device:
- device_del(&dev_info->dev);
+ device_del(&indio_dev->dev);
error_unreg_eventset:
- iio_device_unregister_eventset(dev_info);
+ iio_device_unregister_eventset(indio_dev);
error_free_sysfs:
- iio_device_unregister_sysfs(dev_info);
+ iio_device_unregister_sysfs(indio_dev);
error_ret:
return ret;
}
EXPORT_SYMBOL(iio_device_register);
-void iio_device_unregister(struct iio_dev *dev_info)
+void iio_device_unregister(struct iio_dev *indio_dev)
{
- device_unregister(&dev_info->dev);
+ device_unregister(&indio_dev->dev);
}
EXPORT_SYMBOL(iio_device_unregister);
subsys_initcall(iio_init);
projects / openwrt / staging / blogic.git / commitdiff