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- // SPDX-License-Identifier: GPL-2.0-only
- /*
- * STMicroelectronics magnetometers driver
- *
- * Copyright 2012-2013 STMicroelectronics Inc.
- *
- * Denis Ciocca <denis.ciocca@st.com>
- */
- #include <linux/module.h>
- #include <linux/kernel.h>
- #include <linux/slab.h>
- #include <linux/stat.h>
- #include <linux/interrupt.h>
- #include <linux/i2c.h>
- #include <linux/delay.h>
- #include <linux/iio/iio.h>
- #include <linux/iio/buffer.h>
- #include <linux/iio/trigger_consumer.h>
- #include <linux/iio/triggered_buffer.h>
- #include <linux/iio/common/st_sensors.h>
- #include "st_magn.h"
- int st_magn_trig_set_state(struct iio_trigger *trig, bool state)
- {
- struct iio_dev *indio_dev = iio_trigger_get_drvdata(trig);
- return st_sensors_set_dataready_irq(indio_dev, state);
- }
- static int st_magn_buffer_postenable(struct iio_dev *indio_dev)
- {
- return st_sensors_set_enable(indio_dev, true);
- }
- static int st_magn_buffer_predisable(struct iio_dev *indio_dev)
- {
- return st_sensors_set_enable(indio_dev, false);
- }
- static const struct iio_buffer_setup_ops st_magn_buffer_setup_ops = {
- .postenable = &st_magn_buffer_postenable,
- .predisable = &st_magn_buffer_predisable,
- };
- int st_magn_allocate_ring(struct iio_dev *indio_dev)
- {
- return iio_triggered_buffer_setup(indio_dev, NULL,
- &st_sensors_trigger_handler, &st_magn_buffer_setup_ops);
- }
- void st_magn_deallocate_ring(struct iio_dev *indio_dev)
- {
- iio_triggered_buffer_cleanup(indio_dev);
- }
- MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
- MODULE_DESCRIPTION("STMicroelectronics magnetometers buffer");
- MODULE_LICENSE("GPL v2");
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