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Diffstat (limited to 'include/linux/iio/buffer-dmaengine.h')
| -rw-r--r-- | include/linux/iio/buffer-dmaengine.h | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/include/linux/iio/buffer-dmaengine.h b/include/linux/iio/buffer-dmaengine.h new file mode 100644 index 000000000000..37f27545f69f --- /dev/null +++ b/include/linux/iio/buffer-dmaengine.h @@ -0,0 +1,39 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Copyright 2014-2015 Analog Devices Inc. + * Author: Lars-Peter Clausen <lars@metafoo.de> + */ + +#ifndef __IIO_DMAENGINE_H__ +#define __IIO_DMAENGINE_H__ + +#include <linux/iio/buffer.h> + +struct iio_dev; +struct device; +struct dma_chan; + +void iio_dmaengine_buffer_teardown(struct iio_buffer *buffer); +struct iio_buffer *iio_dmaengine_buffer_setup_ext(struct device *dev, + struct iio_dev *indio_dev, + const char *channel, + enum iio_buffer_direction dir); + +#define iio_dmaengine_buffer_setup(dev, indio_dev, channel) \ + iio_dmaengine_buffer_setup_ext(dev, indio_dev, channel, \ + IIO_BUFFER_DIRECTION_IN) + +int devm_iio_dmaengine_buffer_setup_ext(struct device *dev, + struct iio_dev *indio_dev, + const char *channel, + enum iio_buffer_direction dir); +int devm_iio_dmaengine_buffer_setup_with_handle(struct device *dev, + struct iio_dev *indio_dev, + struct dma_chan *chan, + enum iio_buffer_direction dir); + +#define devm_iio_dmaengine_buffer_setup(dev, indio_dev, channel) \ + devm_iio_dmaengine_buffer_setup_ext(dev, indio_dev, channel, \ + IIO_BUFFER_DIRECTION_IN) + +#endif |