Release 4.11 drivers/iio/common/hid-sensors/hid-sensor-trigger.c
/*
* HID Sensors Driver
* Copyright (c) 2012, Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope 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.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
*
*/
#include <linux/device.h>
#include <linux/platform_device.h>
#include <linux/module.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/hid-sensor-hub.h>
#include <linux/iio/iio.h>
#include <linux/iio/trigger.h>
#include <linux/iio/sysfs.h>
#include "hid-sensor-trigger.h"
static int _hid_sensor_power_state(struct hid_sensor_common *st, bool state)
{
int state_val;
int report_val;
s32 poll_value = 0;
if (state) {
if (!atomic_read(&st->user_requested_state))
return 0;
if (sensor_hub_device_open(st->hsdev))
return -EIO;
atomic_inc(&st->data_ready);
state_val = hid_sensor_get_usage_index(st->hsdev,
st->power_state.report_id,
st->power_state.index,
HID_USAGE_SENSOR_PROP_POWER_STATE_D0_FULL_POWER_ENUM);
report_val = hid_sensor_get_usage_index(st->hsdev,
st->report_state.report_id,
st->report_state.index,
HID_USAGE_SENSOR_PROP_REPORTING_STATE_ALL_EVENTS_ENUM);
} else {
int val;
val = atomic_dec_if_positive(&st->data_ready);
if (val < 0)
return 0;
sensor_hub_device_close(st->hsdev);
state_val = hid_sensor_get_usage_index(st->hsdev,
st->power_state.report_id,
st->power_state.index,
HID_USAGE_SENSOR_PROP_POWER_STATE_D4_POWER_OFF_ENUM);
report_val = hid_sensor_get_usage_index(st->hsdev,
st->report_state.report_id,
st->report_state.index,
HID_USAGE_SENSOR_PROP_REPORTING_STATE_NO_EVENTS_ENUM);
}
if (state_val >= 0) {
state_val += st->power_state.logical_minimum;
sensor_hub_set_feature(st->hsdev, st->power_state.report_id,
st->power_state.index, sizeof(state_val),
&state_val);
}
if (report_val >= 0) {
report_val += st->report_state.logical_minimum;
sensor_hub_set_feature(st->hsdev, st->report_state.report_id,
st->report_state.index,
sizeof(report_val),
&report_val);
}
sensor_hub_get_feature(st->hsdev, st->power_state.report_id,
st->power_state.index,
sizeof(state_val), &state_val);
if (state)
poll_value = hid_sensor_read_poll_value(st);
if (poll_value > 0)
msleep_interruptible(poll_value * 2);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Srinivas Pandruvada | 296 | 89.70% | 9 | 81.82% |
| Archana Patni | 22 | 6.67% | 1 | 9.09% |
| Song Hongyan | 12 | 3.64% | 1 | 9.09% |
| Total | 330 | 100.00% | 11 | 100.00% |
EXPORT_SYMBOL(hid_sensor_power_state);
int hid_sensor_power_state(struct hid_sensor_common *st, bool state)
{
#ifdef CONFIG_PM
int ret;
atomic_set(&st->user_requested_state, state);
if (state)
ret = pm_runtime_get_sync(&st->pdev->dev);
else {
pm_runtime_mark_last_busy(&st->pdev->dev);
ret = pm_runtime_put_autosuspend(&st->pdev->dev);
}
if (ret < 0) {
if (state)
pm_runtime_put_noidle(&st->pdev->dev);
return ret;
}
return 0;
#else
atomic_set(&st->user_requested_state, state);
return _hid_sensor_power_state(st, state);
#endif
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Srinivas Pandruvada | 120 | 100.00% | 2 | 100.00% |
| Total | 120 | 100.00% | 2 | 100.00% |
static void hid_sensor_set_power_work(struct work_struct *work)
{
struct hid_sensor_common *attrb = container_of(work,
struct hid_sensor_common,
work);
_hid_sensor_power_state(attrb, true);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Srinivas Pandruvada | 33 | 100.00% | 1 | 100.00% |
| Total | 33 | 100.00% | 1 | 100.00% |
static int hid_sensor_data_rdy_trigger_set_state(struct iio_trigger *trig,
bool state)
{
return hid_sensor_power_state(iio_trigger_get_drvdata(trig), state);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Srinivas Pandruvada | 25 | 100.00% | 1 | 100.00% |
| Total | 25 | 100.00% | 1 | 100.00% |
void hid_sensor_remove_trigger(struct hid_sensor_common *attrb)
{
cancel_work_sync(&attrb->work);
iio_trigger_unregister(attrb->trigger);
iio_trigger_free(attrb->trigger);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Srinivas Pandruvada | 32 | 100.00% | 3 | 100.00% |
| Total | 32 | 100.00% | 3 | 100.00% |
EXPORT_SYMBOL(hid_sensor_remove_trigger);
static const struct iio_trigger_ops hid_sensor_trigger_ops = {
.owner = THIS_MODULE,
.set_trigger_state = &hid_sensor_data_rdy_trigger_set_state,
};
int hid_sensor_setup_trigger(struct iio_dev *indio_dev, const char *name,
struct hid_sensor_common *attrb)
{
int ret;
struct iio_trigger *trig;
trig = iio_trigger_alloc("%s-dev%d", name, indio_dev->id);
if (trig == NULL) {
dev_err(&indio_dev->dev, "Trigger Allocate Failed\n");
ret = -ENOMEM;
goto error_ret;
}
trig->dev.parent = indio_dev->dev.parent;
iio_trigger_set_drvdata(trig, attrb);
trig->ops = &hid_sensor_trigger_ops;
ret = iio_trigger_register(trig);
if (ret) {
dev_err(&indio_dev->dev, "Trigger Register Failed\n");
goto error_free_trig;
}
attrb->trigger = trig;
indio_dev->trig = iio_trigger_get(trig);
ret = pm_runtime_set_active(&indio_dev->dev);
if (ret)
goto error_unreg_trigger;
iio_device_set_drvdata(indio_dev, attrb);
INIT_WORK(&attrb->work, hid_sensor_set_power_work);
pm_suspend_ignore_children(&attrb->pdev->dev, true);
pm_runtime_enable(&attrb->pdev->dev);
/* Default to 3 seconds, but can be changed from sysfs */
pm_runtime_set_autosuspend_delay(&attrb->pdev->dev,
3000);
pm_runtime_use_autosuspend(&attrb->pdev->dev);
return ret;
error_unreg_trigger:
iio_trigger_unregister(trig);
error_free_trig:
iio_trigger_free(trig);
error_ret:
return ret;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Srinivas Pandruvada | 230 | 97.87% | 5 | 71.43% |
| Lars-Peter Clausen | 4 | 1.70% | 1 | 14.29% |
| Alexander Holler | 1 | 0.43% | 1 | 14.29% |
| Total | 235 | 100.00% | 7 | 100.00% |
EXPORT_SYMBOL(hid_sensor_setup_trigger);
static int __maybe_unused hid_sensor_suspend(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct iio_dev *indio_dev = platform_get_drvdata(pdev);
struct hid_sensor_common *attrb = iio_device_get_drvdata(indio_dev);
return _hid_sensor_power_state(attrb, false);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Srinivas Pandruvada | 49 | 98.00% | 1 | 50.00% |
| Arnd Bergmann | 1 | 2.00% | 1 | 50.00% |
| Total | 50 | 100.00% | 2 | 100.00% |
static int __maybe_unused hid_sensor_resume(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct iio_dev *indio_dev = platform_get_drvdata(pdev);
struct hid_sensor_common *attrb = iio_device_get_drvdata(indio_dev);
schedule_work(&attrb->work);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Srinivas Pandruvada | 52 | 98.11% | 2 | 66.67% |
| Arnd Bergmann | 1 | 1.89% | 1 | 33.33% |
| Total | 53 | 100.00% | 3 | 100.00% |
static int __maybe_unused hid_sensor_runtime_resume(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct iio_dev *indio_dev = platform_get_drvdata(pdev);
struct hid_sensor_common *attrb = iio_device_get_drvdata(indio_dev);
return _hid_sensor_power_state(attrb, true);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Srinivas Pandruvada | 49 | 98.00% | 2 | 66.67% |
| Arnd Bergmann | 1 | 2.00% | 1 | 33.33% |
| Total | 50 | 100.00% | 3 | 100.00% |
const struct dev_pm_ops hid_sensor_pm_ops = {
SET_SYSTEM_SLEEP_PM_OPS(hid_sensor_suspend, hid_sensor_resume)
SET_RUNTIME_PM_OPS(hid_sensor_suspend,
hid_sensor_runtime_resume, NULL)
};
EXPORT_SYMBOL(hid_sensor_pm_ops);
MODULE_AUTHOR("Srinivas Pandruvada <srinivas.pandruvada@intel.com>");
MODULE_DESCRIPTION("HID Sensor trigger processing");
MODULE_LICENSE("GPL");
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Srinivas Pandruvada | 999 | 95.97% | 12 | 70.59% |
| Archana Patni | 22 | 2.11% | 1 | 5.88% |
| Song Hongyan | 12 | 1.15% | 1 | 5.88% |
| Lars-Peter Clausen | 4 | 0.38% | 1 | 5.88% |
| Arnd Bergmann | 3 | 0.29% | 1 | 5.88% |
| Alexander Holler | 1 | 0.10% | 1 | 5.88% |
| Total | 1041 | 100.00% | 17 | 100.00% |
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