xref: /linux-6.15/include/linux/iio/buffer-dmaengine.h (revision 79f24971)

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * Copyright 2014-2015 Analog Devices Inc.
 *  Author: Lars-Peter Clausen <[email protected]>
 */

#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