Release 4.7 drivers/iio/magnetometer/st_magn_buffer.c
  
  
/*
 * STMicroelectronics magnetometers driver
 *
 * Copyright 2012-2013 STMicroelectronics Inc.
 *
 * Denis Ciocca <denis.ciocca@st.com>
 *
 * Licensed under the GPL-2.
 */
#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);
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| giuseppe barba | giuseppe barba | 31 | 100.00% | 1 | 100.00% | 
 | Total | 31 | 100.00% | 1 | 100.00% | 
static int st_magn_buffer_preenable(struct iio_dev *indio_dev)
{
	return st_sensors_set_enable(indio_dev, true);
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| denis ciocca | denis ciocca | 18 | 94.74% | 1 | 50.00% | 
| lars-peter clausen | lars-peter clausen | 1 | 5.26% | 1 | 50.00% | 
 | Total | 19 | 100.00% | 2 | 100.00% | 
static int st_magn_buffer_postenable(struct iio_dev *indio_dev)
{
	int err;
	struct st_sensor_data *mdata = iio_priv(indio_dev);
	mdata->buffer_data = kmalloc(indio_dev->scan_bytes, GFP_KERNEL);
	if (mdata->buffer_data == NULL) {
		err = -ENOMEM;
		goto allocate_memory_error;
	}
	err = iio_triggered_buffer_postenable(indio_dev);
	if (err < 0)
		goto st_magn_buffer_postenable_error;
	return err;
st_magn_buffer_postenable_error:
	kfree(mdata->buffer_data);
allocate_memory_error:
	return err;
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| denis ciocca | denis ciocca | 88 | 100.00% | 1 | 100.00% | 
 | Total | 88 | 100.00% | 1 | 100.00% | 
static int st_magn_buffer_predisable(struct iio_dev *indio_dev)
{
	int err;
	struct st_sensor_data *mdata = iio_priv(indio_dev);
	err = iio_triggered_buffer_predisable(indio_dev);
	if (err < 0)
		goto st_magn_buffer_predisable_error;
	err = st_sensors_set_enable(indio_dev, false);
st_magn_buffer_predisable_error:
	kfree(mdata->buffer_data);
	return err;
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| denis ciocca | denis ciocca | 61 | 100.00% | 1 | 100.00% | 
 | Total | 61 | 100.00% | 1 | 100.00% | 
static const struct iio_buffer_setup_ops st_magn_buffer_setup_ops = {
	.preenable = &st_magn_buffer_preenable,
	.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);
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| denis ciocca | denis ciocca | 23 | 95.83% | 1 | 50.00% | 
| linus walleij | linus walleij | 1 | 4.17% | 1 | 50.00% | 
 | Total | 24 | 100.00% | 2 | 100.00% | 
void st_magn_deallocate_ring(struct iio_dev *indio_dev)
{
	iio_triggered_buffer_cleanup(indio_dev);
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| denis ciocca | denis ciocca | 15 | 100.00% | 1 | 100.00% | 
 | Total | 15 | 100.00% | 1 | 100.00% | 
MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
MODULE_DESCRIPTION("STMicroelectronics magnetometers buffer");
MODULE_LICENSE("GPL v2");
Overall Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| denis ciocca | denis ciocca | 286 | 89.66% | 1 | 25.00% | 
| giuseppe barba | giuseppe barba | 31 | 9.72% | 1 | 25.00% | 
| linus walleij | linus walleij | 1 | 0.31% | 1 | 25.00% | 
| lars-peter clausen | lars-peter clausen | 1 | 0.31% | 1 | 25.00% | 
 | Total | 319 | 100.00% | 4 | 100.00% | 
  
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