cregit-Linux how code gets into the kernel

Release 4.7 drivers/iio/gyro/st_gyro_buffer.c

Directory: drivers/iio/gyro
/*
 * STMicroelectronics gyroscopes 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_gyro.h"


int st_gyro_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

PersonTokensPropCommitsCommitProp
denis cioccadenis ciocca2890.32%150.00%
lars-peter clausenlars-peter clausen39.68%150.00%
Total31100.00%2100.00%


static int st_gyro_buffer_preenable(struct iio_dev *indio_dev) { return st_sensors_set_enable(indio_dev, true); }

Contributors

PersonTokensPropCommitsCommitProp
denis cioccadenis ciocca1894.74%150.00%
lars-peter clausenlars-peter clausen15.26%150.00%
Total19100.00%2100.00%


static int st_gyro_buffer_postenable(struct iio_dev *indio_dev) { int err; struct st_sensor_data *gdata = iio_priv(indio_dev); gdata->buffer_data = kmalloc(indio_dev->scan_bytes, GFP_KERNEL); if (gdata->buffer_data == NULL) { err = -ENOMEM; goto allocate_memory_error; } err = st_sensors_set_axis_enable(indio_dev, (u8)indio_dev->active_scan_mask[0]); if (err < 0) goto st_gyro_buffer_postenable_error; err = iio_triggered_buffer_postenable(indio_dev); if (err < 0) goto st_gyro_buffer_postenable_error; return err; st_gyro_buffer_postenable_error: kfree(gdata->buffer_data); allocate_memory_error: return err; }

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PersonTokensPropCommitsCommitProp
denis cioccadenis ciocca114100.00%1100.00%
Total114100.00%1100.00%


static int st_gyro_buffer_predisable(struct iio_dev *indio_dev) { int err; struct st_sensor_data *gdata = iio_priv(indio_dev); err = iio_triggered_buffer_predisable(indio_dev); if (err < 0) goto st_gyro_buffer_predisable_error; err = st_sensors_set_axis_enable(indio_dev, ST_SENSORS_ENABLE_ALL_AXIS); if (err < 0) goto st_gyro_buffer_predisable_error; err = st_sensors_set_enable(indio_dev, false); st_gyro_buffer_predisable_error: kfree(gdata->buffer_data); return err; }

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PersonTokensPropCommitsCommitProp
denis cioccadenis ciocca79100.00%1100.00%
Total79100.00%1100.00%

static const struct iio_buffer_setup_ops st_gyro_buffer_setup_ops = { .preenable = &st_gyro_buffer_preenable, .postenable = &st_gyro_buffer_postenable, .predisable = &st_gyro_buffer_predisable, };
int st_gyro_allocate_ring(struct iio_dev *indio_dev) { return iio_triggered_buffer_setup(indio_dev, NULL, &st_sensors_trigger_handler, &st_gyro_buffer_setup_ops); }

Contributors

PersonTokensPropCommitsCommitProp
denis cioccadenis ciocca2395.83%150.00%
linus walleijlinus walleij14.17%150.00%
Total24100.00%2100.00%


void st_gyro_deallocate_ring(struct iio_dev *indio_dev) { iio_triggered_buffer_cleanup(indio_dev); }

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PersonTokensPropCommitsCommitProp
denis cioccadenis ciocca15100.00%1100.00%
Total15100.00%1100.00%

MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>"); MODULE_DESCRIPTION("STMicroelectronics gyroscopes buffer"); MODULE_LICENSE("GPL v2");

Overall Contributors

PersonTokensPropCommitsCommitProp
denis cioccadenis ciocca35898.62%125.00%
lars-peter clausenlars-peter clausen41.10%250.00%
linus walleijlinus walleij10.28%125.00%
Total363100.00%4100.00%
Directory: drivers/iio/gyro
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