diff options
Diffstat (limited to 'include/linux/iio/buffer.h')
| -rw-r--r-- | include/linux/iio/buffer.h | 30 |
1 files changed, 25 insertions, 5 deletions
diff --git a/include/linux/iio/buffer.h b/include/linux/iio/buffer.h index fbba4093f06c..5c84ec4a9810 100644 --- a/include/linux/iio/buffer.h +++ b/include/linux/iio/buffer.h @@ -11,11 +11,15 @@ struct iio_buffer; -void iio_buffer_set_attrs(struct iio_buffer *buffer, - const struct attribute **attrs); +enum iio_buffer_direction { + IIO_BUFFER_DIRECTION_IN, + IIO_BUFFER_DIRECTION_OUT, +}; int iio_push_to_buffers(struct iio_dev *indio_dev, const void *data); +int iio_pop_from_buffer(struct iio_buffer *buffer, void *data); + /** * iio_push_to_buffers_with_timestamp() - push data and timestamp to buffers * @indio_dev: iio_dev structure for device. @@ -33,7 +37,7 @@ int iio_push_to_buffers(struct iio_dev *indio_dev, const void *data); static inline int iio_push_to_buffers_with_timestamp(struct iio_dev *indio_dev, void *data, int64_t timestamp) { - if (indio_dev->scan_timestamp) { + if (ACCESS_PRIVATE(indio_dev, scan_timestamp)) { size_t ts_offset = indio_dev->scan_bytes / sizeof(int64_t) - 1; ((int64_t *)data)[ts_offset] = timestamp; } @@ -41,10 +45,26 @@ static inline int iio_push_to_buffers_with_timestamp(struct iio_dev *indio_dev, return iio_push_to_buffers(indio_dev, data); } +static inline int iio_push_to_buffers_with_ts(struct iio_dev *indio_dev, + void *data, size_t data_total_len, + s64 timestamp) +{ + if (unlikely(data_total_len < indio_dev->scan_bytes)) { + dev_err(&indio_dev->dev, "Undersized storage pushed to buffer\n"); + return -ENOSPC; + } + + return iio_push_to_buffers_with_timestamp(indio_dev, data, timestamp); +} + +int iio_push_to_buffers_with_ts_unaligned(struct iio_dev *indio_dev, + const void *data, size_t data_sz, + int64_t timestamp); + bool iio_validate_scan_mask_onehot(struct iio_dev *indio_dev, const unsigned long *mask); -void iio_device_attach_buffer(struct iio_dev *indio_dev, - struct iio_buffer *buffer); +int iio_device_attach_buffer(struct iio_dev *indio_dev, + struct iio_buffer *buffer); #endif /* _IIO_BUFFER_GENERIC_H_ */ |