/* 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