mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-23 12:43:55 +08:00
8c0984e5a7
This moves all power supply drivers from drivers/power/ to drivers/power/supply/. The intention is a cleaner source tree, since drivers/power/ also contains frameworks unrelated to power supply, like adaptive voltage scaling. Signed-off-by: Sebastian Reichel <sre@kernel.org>
171 lines
4.8 KiB
C
171 lines
4.8 KiB
C
/*
|
|
* LEDs triggers for power supply class
|
|
*
|
|
* Copyright © 2007 Anton Vorontsov <cbou@mail.ru>
|
|
* Copyright © 2004 Szabolcs Gyurko
|
|
* Copyright © 2003 Ian Molton <spyro@f2s.com>
|
|
*
|
|
* Modified: 2004, Oct Szabolcs Gyurko
|
|
*
|
|
* You may use this code as per GPL version 2
|
|
*/
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/device.h>
|
|
#include <linux/power_supply.h>
|
|
#include <linux/slab.h>
|
|
|
|
#include "power_supply.h"
|
|
|
|
/* Battery specific LEDs triggers. */
|
|
|
|
static void power_supply_update_bat_leds(struct power_supply *psy)
|
|
{
|
|
union power_supply_propval status;
|
|
unsigned long delay_on = 0;
|
|
unsigned long delay_off = 0;
|
|
|
|
if (power_supply_get_property(psy, POWER_SUPPLY_PROP_STATUS, &status))
|
|
return;
|
|
|
|
dev_dbg(&psy->dev, "%s %d\n", __func__, status.intval);
|
|
|
|
switch (status.intval) {
|
|
case POWER_SUPPLY_STATUS_FULL:
|
|
led_trigger_event(psy->charging_full_trig, LED_FULL);
|
|
led_trigger_event(psy->charging_trig, LED_OFF);
|
|
led_trigger_event(psy->full_trig, LED_FULL);
|
|
led_trigger_event(psy->charging_blink_full_solid_trig,
|
|
LED_FULL);
|
|
break;
|
|
case POWER_SUPPLY_STATUS_CHARGING:
|
|
led_trigger_event(psy->charging_full_trig, LED_FULL);
|
|
led_trigger_event(psy->charging_trig, LED_FULL);
|
|
led_trigger_event(psy->full_trig, LED_OFF);
|
|
led_trigger_blink(psy->charging_blink_full_solid_trig,
|
|
&delay_on, &delay_off);
|
|
break;
|
|
default:
|
|
led_trigger_event(psy->charging_full_trig, LED_OFF);
|
|
led_trigger_event(psy->charging_trig, LED_OFF);
|
|
led_trigger_event(psy->full_trig, LED_OFF);
|
|
led_trigger_event(psy->charging_blink_full_solid_trig,
|
|
LED_OFF);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static int power_supply_create_bat_triggers(struct power_supply *psy)
|
|
{
|
|
psy->charging_full_trig_name = kasprintf(GFP_KERNEL,
|
|
"%s-charging-or-full", psy->desc->name);
|
|
if (!psy->charging_full_trig_name)
|
|
goto charging_full_failed;
|
|
|
|
psy->charging_trig_name = kasprintf(GFP_KERNEL,
|
|
"%s-charging", psy->desc->name);
|
|
if (!psy->charging_trig_name)
|
|
goto charging_failed;
|
|
|
|
psy->full_trig_name = kasprintf(GFP_KERNEL, "%s-full", psy->desc->name);
|
|
if (!psy->full_trig_name)
|
|
goto full_failed;
|
|
|
|
psy->charging_blink_full_solid_trig_name = kasprintf(GFP_KERNEL,
|
|
"%s-charging-blink-full-solid", psy->desc->name);
|
|
if (!psy->charging_blink_full_solid_trig_name)
|
|
goto charging_blink_full_solid_failed;
|
|
|
|
led_trigger_register_simple(psy->charging_full_trig_name,
|
|
&psy->charging_full_trig);
|
|
led_trigger_register_simple(psy->charging_trig_name,
|
|
&psy->charging_trig);
|
|
led_trigger_register_simple(psy->full_trig_name,
|
|
&psy->full_trig);
|
|
led_trigger_register_simple(psy->charging_blink_full_solid_trig_name,
|
|
&psy->charging_blink_full_solid_trig);
|
|
|
|
return 0;
|
|
|
|
charging_blink_full_solid_failed:
|
|
kfree(psy->full_trig_name);
|
|
full_failed:
|
|
kfree(psy->charging_trig_name);
|
|
charging_failed:
|
|
kfree(psy->charging_full_trig_name);
|
|
charging_full_failed:
|
|
return -ENOMEM;
|
|
}
|
|
|
|
static void power_supply_remove_bat_triggers(struct power_supply *psy)
|
|
{
|
|
led_trigger_unregister_simple(psy->charging_full_trig);
|
|
led_trigger_unregister_simple(psy->charging_trig);
|
|
led_trigger_unregister_simple(psy->full_trig);
|
|
led_trigger_unregister_simple(psy->charging_blink_full_solid_trig);
|
|
kfree(psy->charging_blink_full_solid_trig_name);
|
|
kfree(psy->full_trig_name);
|
|
kfree(psy->charging_trig_name);
|
|
kfree(psy->charging_full_trig_name);
|
|
}
|
|
|
|
/* Generated power specific LEDs triggers. */
|
|
|
|
static void power_supply_update_gen_leds(struct power_supply *psy)
|
|
{
|
|
union power_supply_propval online;
|
|
|
|
if (power_supply_get_property(psy, POWER_SUPPLY_PROP_ONLINE, &online))
|
|
return;
|
|
|
|
dev_dbg(&psy->dev, "%s %d\n", __func__, online.intval);
|
|
|
|
if (online.intval)
|
|
led_trigger_event(psy->online_trig, LED_FULL);
|
|
else
|
|
led_trigger_event(psy->online_trig, LED_OFF);
|
|
}
|
|
|
|
static int power_supply_create_gen_triggers(struct power_supply *psy)
|
|
{
|
|
psy->online_trig_name = kasprintf(GFP_KERNEL, "%s-online",
|
|
psy->desc->name);
|
|
if (!psy->online_trig_name)
|
|
return -ENOMEM;
|
|
|
|
led_trigger_register_simple(psy->online_trig_name, &psy->online_trig);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void power_supply_remove_gen_triggers(struct power_supply *psy)
|
|
{
|
|
led_trigger_unregister_simple(psy->online_trig);
|
|
kfree(psy->online_trig_name);
|
|
}
|
|
|
|
/* Choice what triggers to create&update. */
|
|
|
|
void power_supply_update_leds(struct power_supply *psy)
|
|
{
|
|
if (psy->desc->type == POWER_SUPPLY_TYPE_BATTERY)
|
|
power_supply_update_bat_leds(psy);
|
|
else
|
|
power_supply_update_gen_leds(psy);
|
|
}
|
|
|
|
int power_supply_create_triggers(struct power_supply *psy)
|
|
{
|
|
if (psy->desc->type == POWER_SUPPLY_TYPE_BATTERY)
|
|
return power_supply_create_bat_triggers(psy);
|
|
return power_supply_create_gen_triggers(psy);
|
|
}
|
|
|
|
void power_supply_remove_triggers(struct power_supply *psy)
|
|
{
|
|
if (psy->desc->type == POWER_SUPPLY_TYPE_BATTERY)
|
|
power_supply_remove_bat_triggers(psy);
|
|
else
|
|
power_supply_remove_gen_triggers(psy);
|
|
}
|