buffer-dmaengine.h

 1/* SPDX-License-Identifier: GPL-2.0-or-later */
 2/*
 3 * Copyright 2014-2015 Analog Devices Inc.
 4 *  Author: Lars-Peter Clausen <lars@metafoo.de>
 5 */
 6
 7#ifndef __IIO_DMAENGINE_H__
 8#define __IIO_DMAENGINE_H__
 9
10#include <linux/iio/buffer.h>
11
12struct iio_dev;
13struct device;
14struct dma_chan;
15
16void iio_dmaengine_buffer_teardown(struct iio_buffer *buffer);
17struct iio_buffer *iio_dmaengine_buffer_setup_ext(struct device *dev,
18						  struct iio_dev *indio_dev,
19						  const char *channel,
20						  enum iio_buffer_direction dir);
21
22#define iio_dmaengine_buffer_setup(dev, indio_dev, channel)	\
23	iio_dmaengine_buffer_setup_ext(dev, indio_dev, channel,	\
24				       IIO_BUFFER_DIRECTION_IN)
25
26int devm_iio_dmaengine_buffer_setup_ext(struct device *dev,
27					struct iio_dev *indio_dev,
28					const char *channel,
29					enum iio_buffer_direction dir);
30int devm_iio_dmaengine_buffer_setup_with_handle(struct device *dev,
31						struct iio_dev *indio_dev,
32						struct dma_chan *chan,
33						enum iio_buffer_direction dir);
34
35#define devm_iio_dmaengine_buffer_setup(dev, indio_dev, channel)	\
36	devm_iio_dmaengine_buffer_setup_ext(dev, indio_dev, channel,	\
37					    IIO_BUFFER_DIRECTION_IN)
38
39#endif