diff options
Diffstat (limited to 'include/linux/iio/buffer.h')
| -rw-r--r-- | include/linux/iio/buffer.h | 30 |
1 files changed, 21 insertions, 9 deletions
diff --git a/include/linux/iio/buffer.h b/include/linux/iio/buffer.h index 8ba516fc2ec..f3eea18fdf4 100644 --- a/include/linux/iio/buffer.h +++ b/include/linux/iio/buffer.h @@ -36,7 +36,7 @@ struct iio_buffer; * any of them not existing. **/ struct iio_buffer_access_funcs { - int (*store_to)(struct iio_buffer *buffer, u8 *data, s64 timestamp); + int (*store_to)(struct iio_buffer *buffer, u8 *data); int (*read_first_n)(struct iio_buffer *buffer, size_t n, char __user *buf); @@ -66,7 +66,8 @@ struct iio_buffer_access_funcs { * @stufftoread: [INTERN] flag to indicate new data. * @demux_list: [INTERN] list of operations required to demux the scan. * @demux_bounce: [INTERN] buffer for doing gather from incoming scan. - **/ + * @buffer_list: [INTERN] entry in the devices list of current buffers. + */ struct iio_buffer { int length; int bytes_per_datum; @@ -81,9 +82,22 @@ struct iio_buffer { const struct attribute_group *attrs; struct list_head demux_list; unsigned char *demux_bounce; + struct list_head buffer_list; }; /** + * iio_update_buffers() - add or remove buffer from active list + * @indio_dev: device to add buffer to + * @insert_buffer: buffer to insert + * @remove_buffer: buffer_to_remove + * + * Note this will tear down the all buffering and build it up again + */ +int iio_update_buffers(struct iio_dev *indio_dev, + struct iio_buffer *insert_buffer, + struct iio_buffer *remove_buffer); + +/** * iio_buffer_init() - Initialize the buffer structure * @buffer: buffer to be initialized **/ @@ -115,13 +129,11 @@ int iio_scan_mask_set(struct iio_dev *indio_dev, struct iio_buffer *buffer, int bit); /** - * iio_push_to_buffer() - push to a registered buffer. - * @buffer: IIO buffer structure for device - * @data: the data to push to the buffer - * @timestamp: timestamp to associate with the data + * iio_push_to_buffers() - push to a registered buffer. + * @indio_dev: iio_dev structure for device. + * @data: Full scan. */ -int iio_push_to_buffer(struct iio_buffer *buffer, unsigned char *data, - s64 timestamp); +int iio_push_to_buffers(struct iio_dev *indio_dev, unsigned char *data); int iio_update_demux(struct iio_dev *indio_dev); @@ -183,7 +195,7 @@ bool iio_validate_scan_mask_onehot(struct iio_dev *indio_dev, #else /* CONFIG_IIO_BUFFER */ static inline int iio_buffer_register(struct iio_dev *indio_dev, - struct iio_chan_spec *channels, + const struct iio_chan_spec *channels, int num_channels) { return 0; |