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/*
* Copyright (C) 2012 Invensense, Inc.
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
/**
* @addtogroup DRIVERS
* @brief Hardware drivers.
*
* @{
* @file inv_ami306_trigger.c
* @brief Invensense implementation for AMI306
* @details This driver currently works for the AMI306
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/i2c.h>
#include <linux/err.h>
#include <linux/delay.h>
#include <linux/sysfs.h>
#include <linux/jiffies.h>
#include <linux/irq.h>
#include <linux/interrupt.h>
#include <linux/kfifo.h>
#include <linux/poll.h>
#include <linux/miscdevice.h>
#include <linux/spinlock.h>
#include "iio.h"
#include "sysfs.h"
#include "trigger.h"
#include "inv_ami306_iio.h"
static const struct iio_trigger_ops inv_ami306_trigger_ops = {
.owner = THIS_MODULE,
};
int inv_ami306_probe_trigger(struct iio_dev *indio_dev)
{
int ret;
struct inv_ami306_state_s *st = iio_priv(indio_dev);
st->trig = iio_allocate_trigger("%s-dev%d",
indio_dev->name,
indio_dev->id);
if (st->trig == NULL) {
ret = -ENOMEM;
goto error_ret;
}
/* select default trigger */
st->trig->dev.parent = &st->i2c->dev;
st->trig->private_data = indio_dev;
st->trig->ops = &inv_ami306_trigger_ops;
ret = iio_trigger_register(st->trig);
/* select default trigger */
indio_dev->trig = st->trig;
if (ret)
goto error_free_trig;
return 0;
error_free_trig:
iio_free_trigger(st->trig);
error_ret:
return ret;
}
void inv_ami306_remove_trigger(struct iio_dev *indio_dev)
{
struct inv_ami306_state_s *st = iio_priv(indio_dev);
iio_trigger_unregister(st->trig);
iio_free_trigger(st->trig);
}
/**
* @}
*/
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