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 12 struct iio_dev; 13 struct device; 14 15 void iio_dmaengine_buffer_free(struct iio_buffer *buffer); 16 struct iio_buffer *iio_dmaengine_buffer_setup_ext(struct device *dev, 17 struct iio_dev *indio_dev, 18 const char *channel, 19 enum iio_buffer_direction dir); 20 21 #define iio_dmaengine_buffer_setup(dev, indio_dev, channel) \ 22 iio_dmaengine_buffer_setup_ext(dev, indio_dev, channel, \ 23 IIO_BUFFER_DIRECTION_IN) 24 25 int devm_iio_dmaengine_buffer_setup_ext(struct device *dev, 26 struct iio_dev *indio_dev, 27 const char *channel, 28 enum iio_buffer_direction dir); 29 30 #define devm_iio_dmaengine_buffer_setup(dev, indio_dev, channel) \ 31 devm_iio_dmaengine_buffer_setup_ext(dev, indio_dev, channel, \ 32 IIO_BUFFER_DIRECTION_IN) 33 34 #endif 35
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