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@@ -6,7 +6,7 @@
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* under the terms of the GNU General Public License version 2 as published by
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* the Free Software Foundation.
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*
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- * Handling of ring allocation / resizing.
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+ * Handling of buffer allocation / resizing.
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*
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*
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* Things to look at here.
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@@ -31,16 +31,16 @@ static const char * const iio_endian_prefix[] = {
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};
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/**
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- * iio_ring_read_first_n_outer() - chrdev read for ring buffer access
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+ * iio_buffer_read_first_n_outer() - chrdev read for buffer access
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*
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- * This function relies on all ring buffer implementations having an
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- * iio_ring _bufer as their first element.
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+ * This function relies on all buffer implementations having an
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+ * iio_buffer as their first element.
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**/
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-ssize_t iio_ring_read_first_n_outer(struct file *filp, char __user *buf,
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- size_t n, loff_t *f_ps)
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+ssize_t iio_buffer_read_first_n_outer(struct file *filp, char __user *buf,
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+ size_t n, loff_t *f_ps)
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{
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struct iio_dev *indio_dev = filp->private_data;
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- struct iio_ring_buffer *rb = indio_dev->ring;
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+ struct iio_buffer *rb = indio_dev->buffer;
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if (!rb->access->read_first_n)
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return -EINVAL;
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@@ -48,13 +48,13 @@ ssize_t iio_ring_read_first_n_outer(struct file *filp, char __user *buf,
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}
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/**
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- * iio_ring_poll() - poll the ring to find out if it has data
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+ * iio_buffer_poll() - poll the buffer to find out if it has data
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*/
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-unsigned int iio_ring_poll(struct file *filp,
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- struct poll_table_struct *wait)
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+unsigned int iio_buffer_poll(struct file *filp,
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+ struct poll_table_struct *wait)
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{
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struct iio_dev *indio_dev = filp->private_data;
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- struct iio_ring_buffer *rb = indio_dev->ring;
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+ struct iio_buffer *rb = indio_dev->buffer;
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poll_wait(filp, &rb->pollq, wait);
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if (rb->stufftoread)
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@@ -63,16 +63,16 @@ unsigned int iio_ring_poll(struct file *filp,
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return 0;
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}
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-void iio_chrdev_ring_open(struct iio_dev *indio_dev)
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+void iio_chrdev_buffer_open(struct iio_dev *indio_dev)
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{
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- struct iio_ring_buffer *rb = indio_dev->ring;
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+ struct iio_buffer *rb = indio_dev->buffer;
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if (rb && rb->access->mark_in_use)
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rb->access->mark_in_use(rb);
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}
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-void iio_chrdev_ring_release(struct iio_dev *indio_dev)
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+void iio_chrdev_buffer_release(struct iio_dev *indio_dev)
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{
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- struct iio_ring_buffer *rb = indio_dev->ring;
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+ struct iio_buffer *rb = indio_dev->buffer;
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clear_bit(IIO_BUSY_BIT_POS, &rb->flags);
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if (rb->access->unmark_in_use)
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@@ -80,13 +80,12 @@ void iio_chrdev_ring_release(struct iio_dev *indio_dev)
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}
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-void iio_ring_buffer_init(struct iio_ring_buffer *ring,
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- struct iio_dev *dev_info)
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+void iio_buffer_init(struct iio_buffer *buffer, struct iio_dev *dev_info)
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{
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- ring->indio_dev = dev_info;
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- init_waitqueue_head(&ring->pollq);
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+ buffer->indio_dev = dev_info;
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+ init_waitqueue_head(&buffer->pollq);
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}
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-EXPORT_SYMBOL(iio_ring_buffer_init);
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+EXPORT_SYMBOL(iio_buffer_init);
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static ssize_t iio_show_scan_index(struct device *dev,
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struct device_attribute *attr,
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@@ -123,17 +122,17 @@ static ssize_t iio_scan_el_show(struct device *dev,
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int ret;
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struct iio_dev *dev_info = dev_get_drvdata(dev);
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- ret = iio_scan_mask_query(dev_info->ring,
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+ ret = iio_scan_mask_query(dev_info->buffer,
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to_iio_dev_attr(attr)->address);
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if (ret < 0)
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return ret;
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return sprintf(buf, "%d\n", ret);
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}
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-static int iio_scan_mask_clear(struct iio_ring_buffer *ring, int bit)
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+static int iio_scan_mask_clear(struct iio_buffer *buffer, int bit)
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{
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- clear_bit(bit, ring->scan_mask);
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- ring->scan_count--;
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+ clear_bit(bit, buffer->scan_mask);
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+ buffer->scan_count--;
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return 0;
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}
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@@ -145,7 +144,7 @@ static ssize_t iio_scan_el_store(struct device *dev,
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int ret = 0;
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bool state;
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struct iio_dev *indio_dev = dev_get_drvdata(dev);
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- struct iio_ring_buffer *ring = indio_dev->ring;
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+ struct iio_buffer *buffer = indio_dev->buffer;
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struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
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state = !(buf[0] == '0');
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@@ -154,15 +153,15 @@ static ssize_t iio_scan_el_store(struct device *dev,
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ret = -EBUSY;
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goto error_ret;
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}
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- ret = iio_scan_mask_query(ring, this_attr->address);
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+ ret = iio_scan_mask_query(buffer, this_attr->address);
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if (ret < 0)
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goto error_ret;
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if (!state && ret) {
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- ret = iio_scan_mask_clear(ring, this_attr->address);
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+ ret = iio_scan_mask_clear(buffer, this_attr->address);
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if (ret)
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goto error_ret;
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} else if (state && !ret) {
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- ret = iio_scan_mask_set(ring, this_attr->address);
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+ ret = iio_scan_mask_set(buffer, this_attr->address);
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if (ret)
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goto error_ret;
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}
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@@ -179,7 +178,7 @@ static ssize_t iio_scan_el_ts_show(struct device *dev,
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char *buf)
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{
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struct iio_dev *dev_info = dev_get_drvdata(dev);
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- return sprintf(buf, "%d\n", dev_info->ring->scan_timestamp);
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+ return sprintf(buf, "%d\n", dev_info->buffer->scan_timestamp);
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}
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static ssize_t iio_scan_el_ts_store(struct device *dev,
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@@ -197,18 +196,18 @@ static ssize_t iio_scan_el_ts_store(struct device *dev,
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ret = -EBUSY;
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goto error_ret;
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}
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- indio_dev->ring->scan_timestamp = state;
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+ indio_dev->buffer->scan_timestamp = state;
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error_ret:
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mutex_unlock(&indio_dev->mlock);
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return ret ? ret : len;
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}
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-static int iio_ring_add_channel_sysfs(struct iio_dev *indio_dev,
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- const struct iio_chan_spec *chan)
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+static int iio_buffer_add_channel_sysfs(struct iio_dev *indio_dev,
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+ const struct iio_chan_spec *chan)
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{
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int ret, attrcount = 0;
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- struct iio_ring_buffer *ring = indio_dev->ring;
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+ struct iio_buffer *buffer = indio_dev->buffer;
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ret = __iio_add_chan_devattr("index",
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chan,
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@@ -217,7 +216,7 @@ static int iio_ring_add_channel_sysfs(struct iio_dev *indio_dev,
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0,
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0,
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&indio_dev->dev,
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- &ring->scan_el_dev_attr_list);
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+ &buffer->scan_el_dev_attr_list);
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if (ret)
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goto error_ret;
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attrcount++;
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@@ -228,7 +227,7 @@ static int iio_ring_add_channel_sysfs(struct iio_dev *indio_dev,
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0,
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0,
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&indio_dev->dev,
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- &ring->scan_el_dev_attr_list);
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+ &buffer->scan_el_dev_attr_list);
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if (ret)
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goto error_ret;
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attrcount++;
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@@ -240,7 +239,7 @@ static int iio_ring_add_channel_sysfs(struct iio_dev *indio_dev,
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chan->scan_index,
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0,
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&indio_dev->dev,
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- &ring->scan_el_dev_attr_list);
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+ &buffer->scan_el_dev_attr_list);
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else
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ret = __iio_add_chan_devattr("en",
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chan,
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@@ -249,51 +248,51 @@ static int iio_ring_add_channel_sysfs(struct iio_dev *indio_dev,
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chan->scan_index,
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0,
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&indio_dev->dev,
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- &ring->scan_el_dev_attr_list);
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+ &buffer->scan_el_dev_attr_list);
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attrcount++;
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ret = attrcount;
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error_ret:
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return ret;
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}
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-static void iio_ring_remove_and_free_scan_dev_attr(struct iio_dev *indio_dev,
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- struct iio_dev_attr *p)
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+static void iio_buffer_remove_and_free_scan_dev_attr(struct iio_dev *indio_dev,
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+ struct iio_dev_attr *p)
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{
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kfree(p->dev_attr.attr.name);
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kfree(p);
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}
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-static void __iio_ring_attr_cleanup(struct iio_dev *indio_dev)
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+static void __iio_buffer_attr_cleanup(struct iio_dev *indio_dev)
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{
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struct iio_dev_attr *p, *n;
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- struct iio_ring_buffer *ring = indio_dev->ring;
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+ struct iio_buffer *buffer = indio_dev->buffer;
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list_for_each_entry_safe(p, n,
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- &ring->scan_el_dev_attr_list, l)
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- iio_ring_remove_and_free_scan_dev_attr(indio_dev, p);
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+ &buffer->scan_el_dev_attr_list, l)
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+ iio_buffer_remove_and_free_scan_dev_attr(indio_dev, p);
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}
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static const char * const iio_scan_elements_group_name = "scan_elements";
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-int iio_ring_buffer_register(struct iio_dev *indio_dev,
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- const struct iio_chan_spec *channels,
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- int num_channels)
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+int iio_buffer_register(struct iio_dev *indio_dev,
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+ const struct iio_chan_spec *channels,
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+ int num_channels)
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{
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struct iio_dev_attr *p;
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struct attribute **attr;
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- struct iio_ring_buffer *ring = indio_dev->ring;
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+ struct iio_buffer *buffer = indio_dev->buffer;
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int ret, i, attrn, attrcount, attrcount_orig = 0;
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- if (ring->attrs)
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- indio_dev->groups[indio_dev->groupcounter++] = ring->attrs;
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+ if (buffer->attrs)
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+ indio_dev->groups[indio_dev->groupcounter++] = buffer->attrs;
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- if (ring->scan_el_attrs != NULL) {
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- attr = ring->scan_el_attrs->attrs;
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+ if (buffer->scan_el_attrs != NULL) {
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+ attr = buffer->scan_el_attrs->attrs;
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while (*attr++ != NULL)
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attrcount_orig++;
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}
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attrcount = attrcount_orig;
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- INIT_LIST_HEAD(&ring->scan_el_dev_attr_list);
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+ INIT_LIST_HEAD(&buffer->scan_el_dev_attr_list);
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if (channels) {
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/* new magic */
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for (i = 0; i < num_channels; i++) {
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@@ -303,167 +302,168 @@ int iio_ring_buffer_register(struct iio_dev *indio_dev,
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indio_dev->masklength
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= indio_dev->channels[i].scan_index + 1;
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- ret = iio_ring_add_channel_sysfs(indio_dev,
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+ ret = iio_buffer_add_channel_sysfs(indio_dev,
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&channels[i]);
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if (ret < 0)
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goto error_cleanup_dynamic;
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attrcount += ret;
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}
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- if (indio_dev->masklength && ring->scan_mask == NULL) {
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- ring->scan_mask
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- = kzalloc(sizeof(*ring->scan_mask)*
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+ if (indio_dev->masklength && buffer->scan_mask == NULL) {
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+ buffer->scan_mask
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+ = kzalloc(sizeof(*buffer->scan_mask)*
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BITS_TO_LONGS(indio_dev->masklength),
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GFP_KERNEL);
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- if (ring->scan_mask == NULL) {
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+ if (buffer->scan_mask == NULL) {
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ret = -ENOMEM;
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goto error_cleanup_dynamic;
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}
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}
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}
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- ring->scan_el_group.name = iio_scan_elements_group_name;
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+ buffer->scan_el_group.name = iio_scan_elements_group_name;
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- ring->scan_el_group.attrs
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- = kzalloc(sizeof(ring->scan_el_group.attrs[0])*(attrcount + 1),
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+ buffer->scan_el_group.attrs
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+ = kzalloc(sizeof(buffer->scan_el_group.attrs[0])*
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+ (attrcount + 1),
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GFP_KERNEL);
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- if (ring->scan_el_group.attrs == NULL) {
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+ if (buffer->scan_el_group.attrs == NULL) {
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ret = -ENOMEM;
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goto error_free_scan_mask;
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}
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- if (ring->scan_el_attrs)
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- memcpy(ring->scan_el_group.attrs, ring->scan_el_attrs,
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- sizeof(ring->scan_el_group.attrs[0])*attrcount_orig);
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+ if (buffer->scan_el_attrs)
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+ memcpy(buffer->scan_el_group.attrs, buffer->scan_el_attrs,
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+ sizeof(buffer->scan_el_group.attrs[0])*attrcount_orig);
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attrn = attrcount_orig;
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- list_for_each_entry(p, &ring->scan_el_dev_attr_list, l)
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- ring->scan_el_group.attrs[attrn++] = &p->dev_attr.attr;
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- indio_dev->groups[indio_dev->groupcounter++] = &ring->scan_el_group;
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+ list_for_each_entry(p, &buffer->scan_el_dev_attr_list, l)
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+ buffer->scan_el_group.attrs[attrn++] = &p->dev_attr.attr;
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+ indio_dev->groups[indio_dev->groupcounter++] = &buffer->scan_el_group;
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return 0;
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error_free_scan_mask:
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- kfree(ring->scan_mask);
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+ kfree(buffer->scan_mask);
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error_cleanup_dynamic:
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- __iio_ring_attr_cleanup(indio_dev);
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+ __iio_buffer_attr_cleanup(indio_dev);
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return ret;
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}
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-EXPORT_SYMBOL(iio_ring_buffer_register);
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+EXPORT_SYMBOL(iio_buffer_register);
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-void iio_ring_buffer_unregister(struct iio_dev *indio_dev)
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+void iio_buffer_unregister(struct iio_dev *indio_dev)
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{
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- kfree(indio_dev->ring->scan_mask);
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- kfree(indio_dev->ring->scan_el_group.attrs);
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- __iio_ring_attr_cleanup(indio_dev);
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+ kfree(indio_dev->buffer->scan_mask);
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+ kfree(indio_dev->buffer->scan_el_group.attrs);
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+ __iio_buffer_attr_cleanup(indio_dev);
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}
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-EXPORT_SYMBOL(iio_ring_buffer_unregister);
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+EXPORT_SYMBOL(iio_buffer_unregister);
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-ssize_t iio_read_ring_length(struct device *dev,
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- struct device_attribute *attr,
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- char *buf)
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+ssize_t iio_buffer_read_length(struct device *dev,
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+ struct device_attribute *attr,
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+ char *buf)
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{
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struct iio_dev *indio_dev = dev_get_drvdata(dev);
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- struct iio_ring_buffer *ring = indio_dev->ring;
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+ struct iio_buffer *buffer = indio_dev->buffer;
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- if (ring->access->get_length)
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+ if (buffer->access->get_length)
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return sprintf(buf, "%d\n",
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- ring->access->get_length(ring));
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+ buffer->access->get_length(buffer));
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return 0;
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}
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-EXPORT_SYMBOL(iio_read_ring_length);
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+EXPORT_SYMBOL(iio_buffer_read_length);
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-ssize_t iio_write_ring_length(struct device *dev,
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- struct device_attribute *attr,
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- const char *buf,
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- size_t len)
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+ssize_t iio_buffer_write_length(struct device *dev,
|
|
|
+ struct device_attribute *attr,
|
|
|
+ const char *buf,
|
|
|
+ size_t len)
|
|
|
{
|
|
|
int ret;
|
|
|
ulong val;
|
|
|
struct iio_dev *indio_dev = dev_get_drvdata(dev);
|
|
|
- struct iio_ring_buffer *ring = indio_dev->ring;
|
|
|
+ struct iio_buffer *buffer = indio_dev->buffer;
|
|
|
|
|
|
ret = strict_strtoul(buf, 10, &val);
|
|
|
if (ret)
|
|
|
return ret;
|
|
|
|
|
|
- if (ring->access->get_length)
|
|
|
- if (val == ring->access->get_length(ring))
|
|
|
+ if (buffer->access->get_length)
|
|
|
+ if (val == buffer->access->get_length(buffer))
|
|
|
return len;
|
|
|
|
|
|
- if (ring->access->set_length) {
|
|
|
- ring->access->set_length(ring, val);
|
|
|
- if (ring->access->mark_param_change)
|
|
|
- ring->access->mark_param_change(ring);
|
|
|
+ if (buffer->access->set_length) {
|
|
|
+ buffer->access->set_length(buffer, val);
|
|
|
+ if (buffer->access->mark_param_change)
|
|
|
+ buffer->access->mark_param_change(buffer);
|
|
|
}
|
|
|
|
|
|
return len;
|
|
|
}
|
|
|
-EXPORT_SYMBOL(iio_write_ring_length);
|
|
|
+EXPORT_SYMBOL(iio_buffer_write_length);
|
|
|
|
|
|
-ssize_t iio_read_ring_bytes_per_datum(struct device *dev,
|
|
|
- struct device_attribute *attr,
|
|
|
- char *buf)
|
|
|
+ssize_t iio_buffer_read_bytes_per_datum(struct device *dev,
|
|
|
+ struct device_attribute *attr,
|
|
|
+ char *buf)
|
|
|
{
|
|
|
struct iio_dev *indio_dev = dev_get_drvdata(dev);
|
|
|
- struct iio_ring_buffer *ring = indio_dev->ring;
|
|
|
+ struct iio_buffer *buffer = indio_dev->buffer;
|
|
|
|
|
|
- if (ring->access->get_bytes_per_datum)
|
|
|
+ if (buffer->access->get_bytes_per_datum)
|
|
|
return sprintf(buf, "%d\n",
|
|
|
- ring->access->get_bytes_per_datum(ring));
|
|
|
+ buffer->access->get_bytes_per_datum(buffer));
|
|
|
|
|
|
return 0;
|
|
|
}
|
|
|
-EXPORT_SYMBOL(iio_read_ring_bytes_per_datum);
|
|
|
+EXPORT_SYMBOL(iio_buffer_read_bytes_per_datum);
|
|
|
|
|
|
-ssize_t iio_store_ring_enable(struct device *dev,
|
|
|
- struct device_attribute *attr,
|
|
|
- const char *buf,
|
|
|
- size_t len)
|
|
|
+ssize_t iio_buffer_store_enable(struct device *dev,
|
|
|
+ struct device_attribute *attr,
|
|
|
+ const char *buf,
|
|
|
+ size_t len)
|
|
|
{
|
|
|
int ret;
|
|
|
bool requested_state, current_state;
|
|
|
int previous_mode;
|
|
|
struct iio_dev *dev_info = dev_get_drvdata(dev);
|
|
|
- struct iio_ring_buffer *ring = dev_info->ring;
|
|
|
+ struct iio_buffer *buffer = dev_info->buffer;
|
|
|
|
|
|
mutex_lock(&dev_info->mlock);
|
|
|
previous_mode = dev_info->currentmode;
|
|
|
requested_state = !(buf[0] == '0');
|
|
|
current_state = !!(previous_mode & INDIO_ALL_BUFFER_MODES);
|
|
|
if (current_state == requested_state) {
|
|
|
- printk(KERN_INFO "iio-ring, current state requested again\n");
|
|
|
+ printk(KERN_INFO "iio-buffer, current state requested again\n");
|
|
|
goto done;
|
|
|
}
|
|
|
if (requested_state) {
|
|
|
- if (ring->setup_ops->preenable) {
|
|
|
- ret = ring->setup_ops->preenable(dev_info);
|
|
|
+ if (buffer->setup_ops->preenable) {
|
|
|
+ ret = buffer->setup_ops->preenable(dev_info);
|
|
|
if (ret) {
|
|
|
printk(KERN_ERR
|
|
|
"Buffer not started:"
|
|
|
- "ring preenable failed\n");
|
|
|
+ "buffer preenable failed\n");
|
|
|
goto error_ret;
|
|
|
}
|
|
|
}
|
|
|
- if (ring->access->request_update) {
|
|
|
- ret = ring->access->request_update(ring);
|
|
|
+ if (buffer->access->request_update) {
|
|
|
+ ret = buffer->access->request_update(buffer);
|
|
|
if (ret) {
|
|
|
printk(KERN_INFO
|
|
|
"Buffer not started:"
|
|
|
- "ring parameter update failed\n");
|
|
|
+ "buffer parameter update failed\n");
|
|
|
goto error_ret;
|
|
|
}
|
|
|
}
|
|
|
- if (ring->access->mark_in_use)
|
|
|
- ring->access->mark_in_use(ring);
|
|
|
+ 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) {
|
|
|
printk(KERN_INFO
|
|
|
"Buffer not started: no trigger\n");
|
|
|
ret = -EINVAL;
|
|
|
- if (ring->access->unmark_in_use)
|
|
|
- ring->access->unmark_in_use(ring);
|
|
|
+ if (buffer->access->unmark_in_use)
|
|
|
+ buffer->access->unmark_in_use(buffer);
|
|
|
goto error_ret;
|
|
|
}
|
|
|
dev_info->currentmode = INDIO_BUFFER_TRIGGERED;
|
|
@@ -474,31 +474,32 @@ ssize_t iio_store_ring_enable(struct device *dev,
|
|
|
goto error_ret;
|
|
|
}
|
|
|
|
|
|
- if (ring->setup_ops->postenable) {
|
|
|
- ret = ring->setup_ops->postenable(dev_info);
|
|
|
+ if (buffer->setup_ops->postenable) {
|
|
|
+ ret = buffer->setup_ops->postenable(dev_info);
|
|
|
if (ret) {
|
|
|
printk(KERN_INFO
|
|
|
"Buffer not started:"
|
|
|
"postenable failed\n");
|
|
|
- if (ring->access->unmark_in_use)
|
|
|
- ring->access->unmark_in_use(ring);
|
|
|
+ if (buffer->access->unmark_in_use)
|
|
|
+ buffer->access->unmark_in_use(buffer);
|
|
|
dev_info->currentmode = previous_mode;
|
|
|
- if (ring->setup_ops->postdisable)
|
|
|
- ring->setup_ops->postdisable(dev_info);
|
|
|
+ if (buffer->setup_ops->postdisable)
|
|
|
+ buffer->setup_ops->
|
|
|
+ postdisable(dev_info);
|
|
|
goto error_ret;
|
|
|
}
|
|
|
}
|
|
|
} else {
|
|
|
- if (ring->setup_ops->predisable) {
|
|
|
- ret = ring->setup_ops->predisable(dev_info);
|
|
|
+ if (buffer->setup_ops->predisable) {
|
|
|
+ ret = buffer->setup_ops->predisable(dev_info);
|
|
|
if (ret)
|
|
|
goto error_ret;
|
|
|
}
|
|
|
- if (ring->access->unmark_in_use)
|
|
|
- ring->access->unmark_in_use(ring);
|
|
|
+ if (buffer->access->unmark_in_use)
|
|
|
+ buffer->access->unmark_in_use(buffer);
|
|
|
dev_info->currentmode = INDIO_DIRECT_MODE;
|
|
|
- if (ring->setup_ops->postdisable) {
|
|
|
- ret = ring->setup_ops->postdisable(dev_info);
|
|
|
+ if (buffer->setup_ops->postdisable) {
|
|
|
+ ret = buffer->setup_ops->postdisable(dev_info);
|
|
|
if (ret)
|
|
|
goto error_ret;
|
|
|
}
|
|
@@ -511,42 +512,42 @@ error_ret:
|
|
|
mutex_unlock(&dev_info->mlock);
|
|
|
return ret;
|
|
|
}
|
|
|
-EXPORT_SYMBOL(iio_store_ring_enable);
|
|
|
+EXPORT_SYMBOL(iio_buffer_store_enable);
|
|
|
|
|
|
-ssize_t iio_show_ring_enable(struct device *dev,
|
|
|
- struct device_attribute *attr,
|
|
|
- char *buf)
|
|
|
+ssize_t iio_buffer_show_enable(struct device *dev,
|
|
|
+ struct device_attribute *attr,
|
|
|
+ char *buf)
|
|
|
{
|
|
|
struct iio_dev *dev_info = dev_get_drvdata(dev);
|
|
|
return sprintf(buf, "%d\n", !!(dev_info->currentmode
|
|
|
& INDIO_ALL_BUFFER_MODES));
|
|
|
}
|
|
|
-EXPORT_SYMBOL(iio_show_ring_enable);
|
|
|
+EXPORT_SYMBOL(iio_buffer_show_enable);
|
|
|
|
|
|
-int iio_sw_ring_preenable(struct iio_dev *indio_dev)
|
|
|
+int iio_sw_buffer_preenable(struct iio_dev *indio_dev)
|
|
|
{
|
|
|
- struct iio_ring_buffer *ring = indio_dev->ring;
|
|
|
+ struct iio_buffer *buffer = indio_dev->buffer;
|
|
|
size_t size;
|
|
|
dev_dbg(&indio_dev->dev, "%s\n", __func__);
|
|
|
/* Check if there are any scan elements enabled, if not fail*/
|
|
|
- if (!(ring->scan_count || ring->scan_timestamp))
|
|
|
+ if (!(buffer->scan_count || buffer->scan_timestamp))
|
|
|
return -EINVAL;
|
|
|
- if (ring->scan_timestamp)
|
|
|
- if (ring->scan_count)
|
|
|
+ if (buffer->scan_timestamp)
|
|
|
+ if (buffer->scan_count)
|
|
|
/* Timestamp (aligned to s64) and data */
|
|
|
- size = (((ring->scan_count * ring->bpe)
|
|
|
+ size = (((buffer->scan_count * buffer->bpe)
|
|
|
+ sizeof(s64) - 1)
|
|
|
& ~(sizeof(s64) - 1))
|
|
|
+ sizeof(s64);
|
|
|
else /* Timestamp only */
|
|
|
size = sizeof(s64);
|
|
|
else /* Data only */
|
|
|
- size = ring->scan_count * ring->bpe;
|
|
|
- ring->access->set_bytes_per_datum(ring, size);
|
|
|
+ size = buffer->scan_count * buffer->bpe;
|
|
|
+ buffer->access->set_bytes_per_datum(buffer, size);
|
|
|
|
|
|
return 0;
|
|
|
}
|
|
|
-EXPORT_SYMBOL(iio_sw_ring_preenable);
|
|
|
+EXPORT_SYMBOL(iio_sw_buffer_preenable);
|
|
|
|
|
|
|
|
|
/* note NULL used as error indicator as it doesn't make sense. */
|
|
@@ -566,12 +567,12 @@ static unsigned long *iio_scan_mask_match(unsigned long *av_masks,
|
|
|
|
|
|
/**
|
|
|
* iio_scan_mask_set() - set particular bit in the scan mask
|
|
|
- * @ring: the ring buffer whose scan mask we are interested in
|
|
|
+ * @buffer: the buffer whose scan mask we are interested in
|
|
|
* @bit: the bit to be set.
|
|
|
**/
|
|
|
-int iio_scan_mask_set(struct iio_ring_buffer *ring, int bit)
|
|
|
+int iio_scan_mask_set(struct iio_buffer *buffer, int bit)
|
|
|
{
|
|
|
- struct iio_dev *dev_info = ring->indio_dev;
|
|
|
+ struct iio_dev *dev_info = buffer->indio_dev;
|
|
|
unsigned long *mask;
|
|
|
unsigned long *trialmask;
|
|
|
|
|
@@ -582,11 +583,11 @@ int iio_scan_mask_set(struct iio_ring_buffer *ring, int bit)
|
|
|
if (trialmask == NULL)
|
|
|
return -ENOMEM;
|
|
|
if (!dev_info->masklength) {
|
|
|
- WARN_ON("trying to set scan mask prior to registering ring\n");
|
|
|
+ WARN_ON("trying to set scanmask prior to registering buffer\n");
|
|
|
kfree(trialmask);
|
|
|
return -EINVAL;
|
|
|
}
|
|
|
- bitmap_copy(trialmask, ring->scan_mask, dev_info->masklength);
|
|
|
+ bitmap_copy(trialmask, buffer->scan_mask, dev_info->masklength);
|
|
|
set_bit(bit, trialmask);
|
|
|
|
|
|
if (dev_info->available_scan_masks) {
|
|
@@ -598,8 +599,8 @@ int iio_scan_mask_set(struct iio_ring_buffer *ring, int bit)
|
|
|
return -EINVAL;
|
|
|
}
|
|
|
}
|
|
|
- bitmap_copy(ring->scan_mask, trialmask, dev_info->masklength);
|
|
|
- ring->scan_count++;
|
|
|
+ bitmap_copy(buffer->scan_mask, trialmask, dev_info->masklength);
|
|
|
+ buffer->scan_count++;
|
|
|
|
|
|
kfree(trialmask);
|
|
|
|
|
@@ -607,22 +608,22 @@ int iio_scan_mask_set(struct iio_ring_buffer *ring, int bit)
|
|
|
};
|
|
|
EXPORT_SYMBOL_GPL(iio_scan_mask_set);
|
|
|
|
|
|
-int iio_scan_mask_query(struct iio_ring_buffer *ring, int bit)
|
|
|
+int iio_scan_mask_query(struct iio_buffer *buffer, int bit)
|
|
|
{
|
|
|
- struct iio_dev *dev_info = ring->indio_dev;
|
|
|
+ struct iio_dev *dev_info = buffer->indio_dev;
|
|
|
long *mask;
|
|
|
|
|
|
if (bit > dev_info->masklength)
|
|
|
return -EINVAL;
|
|
|
|
|
|
- if (!ring->scan_mask)
|
|
|
+ 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,
|
|
|
- ring->scan_mask);
|
|
|
+ buffer->scan_mask);
|
|
|
else
|
|
|
- mask = ring->scan_mask;
|
|
|
+ mask = buffer->scan_mask;
|
|
|
if (!mask)
|
|
|
return 0;
|
|
|
|