Contributors: 12
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Richard Purdie |
275 |
51.59% |
3 |
17.65% |
| Krzysztof Kozlowski |
111 |
20.83% |
1 |
5.88% |
| Uwe Kleine-König |
42 |
7.88% |
3 |
17.65% |
| Shuah Khan |
33 |
6.19% |
2 |
11.76% |
| Esben Haabendal |
15 |
2.81% |
1 |
5.88% |
| Johannes Berg |
14 |
2.63% |
1 |
5.88% |
| Márton Németh |
13 |
2.44% |
1 |
5.88% |
| Johan Hovold |
12 |
2.25% |
1 |
5.88% |
| Pavel Machek |
9 |
1.69% |
1 |
5.88% |
| Rodolfo Giometti |
5 |
0.94% |
1 |
5.88% |
| Thomas Gleixner |
2 |
0.38% |
1 |
5.88% |
| Sven Wegener |
2 |
0.38% |
1 |
5.88% |
| Total |
533 |
|
17 |
|
// SPDX-License-Identifier: GPL-2.0-only
/*
* LED Kernel Timer Trigger
*
* Copyright 2005-2006 Openedhand Ltd.
*
* Author: Richard Purdie <rpurdie@openedhand.com>
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/device.h>
#include <linux/ctype.h>
#include <linux/slab.h>
#include <linux/leds.h>
static ssize_t led_delay_on_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct led_classdev *led_cdev = led_trigger_get_led(dev);
return sprintf(buf, "%lu\n", led_cdev->blink_delay_on);
}
static ssize_t led_delay_on_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t size)
{
struct led_classdev *led_cdev = led_trigger_get_led(dev);
unsigned long state;
ssize_t ret;
ret = kstrtoul(buf, 10, &state);
if (ret)
return ret;
led_blink_set(led_cdev, &state, &led_cdev->blink_delay_off);
led_cdev->blink_delay_on = state;
return size;
}
static ssize_t led_delay_off_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct led_classdev *led_cdev = led_trigger_get_led(dev);
return sprintf(buf, "%lu\n", led_cdev->blink_delay_off);
}
static ssize_t led_delay_off_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t size)
{
struct led_classdev *led_cdev = led_trigger_get_led(dev);
unsigned long state;
ssize_t ret;
ret = kstrtoul(buf, 10, &state);
if (ret)
return ret;
led_blink_set(led_cdev, &led_cdev->blink_delay_on, &state);
led_cdev->blink_delay_off = state;
return size;
}
static DEVICE_ATTR(delay_on, 0644, led_delay_on_show, led_delay_on_store);
static DEVICE_ATTR(delay_off, 0644, led_delay_off_show, led_delay_off_store);
static struct attribute *timer_trig_attrs[] = {
&dev_attr_delay_on.attr,
&dev_attr_delay_off.attr,
NULL
};
ATTRIBUTE_GROUPS(timer_trig);
static void pattern_init(struct led_classdev *led_cdev)
{
u32 *pattern;
unsigned int size = 0;
pattern = led_get_default_pattern(led_cdev, &size);
if (!pattern)
return;
if (size != 2) {
dev_warn(led_cdev->dev,
"Expected 2 but got %u values for delays pattern\n",
size);
goto out;
}
led_cdev->blink_delay_on = pattern[0];
led_cdev->blink_delay_off = pattern[1];
/* led_blink_set() called by caller */
out:
kfree(pattern);
}
static int timer_trig_activate(struct led_classdev *led_cdev)
{
if (led_cdev->flags & LED_INIT_DEFAULT_TRIGGER) {
pattern_init(led_cdev);
/*
* Mark as initialized even on pattern_init() error because
* any consecutive call to it would produce the same error.
*/
led_cdev->flags &= ~LED_INIT_DEFAULT_TRIGGER;
}
/*
* If "set brightness to 0" is pending in workqueue, we don't
* want that to be reordered after blink_set()
*/
flush_work(&led_cdev->set_brightness_work);
led_blink_set(led_cdev, &led_cdev->blink_delay_on,
&led_cdev->blink_delay_off);
return 0;
}
static void timer_trig_deactivate(struct led_classdev *led_cdev)
{
/* Stop blinking */
led_set_brightness(led_cdev, LED_OFF);
}
static struct led_trigger timer_led_trigger = {
.name = "timer",
.activate = timer_trig_activate,
.deactivate = timer_trig_deactivate,
.groups = timer_trig_groups,
};
module_led_trigger(timer_led_trigger);
MODULE_AUTHOR("Richard Purdie <rpurdie@openedhand.com>");
MODULE_DESCRIPTION("Timer LED trigger");
MODULE_LICENSE("GPL v2");