A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-28 10:41:38 -04:00
Code Issues Projects Releases Packages Wiki Activity

leds: disable triggers on brightness set

Browse source 
Disable any active triggers when the brightness attribute is
set to zero.

Signed-off-by: Henrique de Moraes Holschuh <[email protected]>
Signed-off-by: Márton Németh <[email protected]>
Signed-off-by: Richard Purdie <[email protected]>
This commit is contained in:
Németh Márton 2008-03-09 20:54:37 +00:00 • committed by Richard Purdie
commit 0013b23d66
5 changed files with 47 additions and 10 deletions
Download patch file Download diff file Expand all files Collapse all files

3
drivers/leds/led-class.c
View file

@ -51,6 +51,9 @@ static ssize_t led_brightness_store(struct device *dev,
if (count == size) {
ret = count;
if (state == LED_OFF)
led_trigger_remove(led_cdev);
led_set_brightness(led_cdev, state);
}

12
drivers/leds/led-triggers.c
View file

@ -45,9 +45,7 @@ ssize_t led_trigger_store(struct device *dev, struct device_attribute *attr,
trigger_name[len - 1] = '\0';
if (!strcmp(trigger_name, "none")) {
down_write(&led_cdev->trigger_lock);
led_trigger_set(led_cdev, NULL);
up_write(&led_cdev->trigger_lock);
led_trigger_remove(led_cdev);
return count;
}
@ -139,6 +137,13 @@ void led_trigger_set(struct led_classdev *led_cdev, struct led_trigger *trigger)
led_cdev->trigger = trigger;
}
void led_trigger_remove(struct led_classdev *led_cdev)
{
down_write(&led_cdev->trigger_lock);
led_trigger_set(led_cdev, NULL);
up_write(&led_cdev->trigger_lock);
}
void led_trigger_set_default(struct led_classdev *led_cdev)
{
struct led_trigger *trig;
@ -231,6 +236,7 @@ void led_trigger_unregister_simple(struct led_trigger *trigger)
/* Used by LED Class */
EXPORT_SYMBOL_GPL(led_trigger_set);
EXPORT_SYMBOL_GPL(led_trigger_remove);
EXPORT_SYMBOL_GPL(led_trigger_set_default);
EXPORT_SYMBOL_GPL(led_trigger_show);
EXPORT_SYMBOL_GPL(led_trigger_store);

7
drivers/leds/leds.h
View file

@ -27,6 +27,11 @@ static inline void led_set_brightness(struct led_classdev *led_cdev,
led_cdev->brightness_set(led_cdev, value);
}
static inline int led_get_brightness(struct led_classdev *led_cdev)
{
return led_cdev->brightness;
}
extern struct rw_semaphore leds_list_lock;
extern struct list_head leds_list;
@ -34,9 +39,11 @@ extern struct list_head leds_list;
void led_trigger_set_default(struct led_classdev *led_cdev);
void led_trigger_set(struct led_classdev *led_cdev,
struct led_trigger *trigger);
void led_trigger_remove(struct led_classdev *led_cdev);
#else
#define led_trigger_set_default(x) do {} while(0)
#define led_trigger_set(x, y) do {} while(0)
#define led_trigger_remove(x) do {} while(0)
#endif
ssize_t led_trigger_store(struct device *dev, struct device_attribute *attr,

23
drivers/leds/ledtrig-timer.c
View file

@ -25,6 +25,9 @@
#include "leds.h"
struct timer_trig_data {
int brightness_on; /* LED brightness during "on" period.
* (LED_OFF < brightness_on <= LED_FULL)
*/
unsigned long delay_on; /* milliseconds on */
unsigned long delay_off; /* milliseconds off */
struct timer_list timer;
@ -34,17 +37,26 @@ static void led_timer_function(unsigned long data)
{
struct led_classdev *led_cdev = (struct led_classdev *) data;
struct timer_trig_data *timer_data = led_cdev->trigger_data;
unsigned long brightness = LED_OFF;
unsigned long delay = timer_data->delay_off;
unsigned long brightness;
unsigned long delay;
if (!timer_data->delay_on || !timer_data->delay_off) {
led_set_brightness(led_cdev, LED_OFF);
return;
}
if (!led_cdev->brightness) {
brightness = LED_FULL;
brightness = led_get_brightness(led_cdev);
if (!brightness) {
/* Time to switch the LED on. */
brightness = timer_data->brightness_on;
delay = timer_data->delay_on;
} else {
/* Store the current brightness value to be able
* to restore it when the delay_off period is over.
*/
timer_data->brightness_on = brightness;
brightness = LED_OFF;
delay = timer_data->delay_off;
}
led_set_brightness(led_cdev, brightness);
@ -156,6 +168,9 @@ static void timer_trig_activate(struct led_classdev *led_cdev)
if (!timer_data)
return;
timer_data->brightness_on = led_get_brightness(led_cdev);
if (timer_data->brightness_on == LED_OFF)
timer_data->brightness_on = LED_FULL;
led_cdev->trigger_data = timer_data;
init_timer(&timer_data->timer);