51990e8254
For files that are actively using linux/device.h, make sure that they call it out. This will allow us to clean up some of the implicit uses of linux/device.h within include/* without introducing build regressions. Yes, this was created by "cheating" -- i.e. the headers were cleaned up, and then the fallout was found and fixed, and then the two commits were reordered. This ensures we don't introduce build regressions into the git history. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
180 lines
4.8 KiB
C
180 lines
4.8 KiB
C
/*
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* LEDs triggers for power supply class
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*
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* Copyright © 2007 Anton Vorontsov <cbou@mail.ru>
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* Copyright © 2004 Szabolcs Gyurko
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* Copyright © 2003 Ian Molton <spyro@f2s.com>
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*
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* Modified: 2004, Oct Szabolcs Gyurko
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*
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* You may use this code as per GPL version 2
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*/
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#include <linux/kernel.h>
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#include <linux/device.h>
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#include <linux/power_supply.h>
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#include <linux/slab.h>
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#include "power_supply.h"
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/* Battery specific LEDs triggers. */
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static void power_supply_update_bat_leds(struct power_supply *psy)
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{
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union power_supply_propval status;
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unsigned long delay_on = 0;
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unsigned long delay_off = 0;
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if (psy->get_property(psy, POWER_SUPPLY_PROP_STATUS, &status))
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return;
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dev_dbg(psy->dev, "%s %d\n", __func__, status.intval);
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switch (status.intval) {
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case POWER_SUPPLY_STATUS_FULL:
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led_trigger_event(psy->charging_full_trig, LED_FULL);
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led_trigger_event(psy->charging_trig, LED_OFF);
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led_trigger_event(psy->full_trig, LED_FULL);
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led_trigger_event(psy->charging_blink_full_solid_trig,
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LED_FULL);
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break;
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case POWER_SUPPLY_STATUS_CHARGING:
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led_trigger_event(psy->charging_full_trig, LED_FULL);
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led_trigger_event(psy->charging_trig, LED_FULL);
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led_trigger_event(psy->full_trig, LED_OFF);
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led_trigger_blink(psy->charging_blink_full_solid_trig,
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&delay_on, &delay_off);
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break;
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default:
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led_trigger_event(psy->charging_full_trig, LED_OFF);
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led_trigger_event(psy->charging_trig, LED_OFF);
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led_trigger_event(psy->full_trig, LED_OFF);
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led_trigger_event(psy->charging_blink_full_solid_trig,
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LED_OFF);
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break;
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}
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}
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static int power_supply_create_bat_triggers(struct power_supply *psy)
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{
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int rc = 0;
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psy->charging_full_trig_name = kasprintf(GFP_KERNEL,
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"%s-charging-or-full", psy->name);
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if (!psy->charging_full_trig_name)
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goto charging_full_failed;
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psy->charging_trig_name = kasprintf(GFP_KERNEL,
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"%s-charging", psy->name);
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if (!psy->charging_trig_name)
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goto charging_failed;
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psy->full_trig_name = kasprintf(GFP_KERNEL, "%s-full", psy->name);
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if (!psy->full_trig_name)
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goto full_failed;
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psy->charging_blink_full_solid_trig_name = kasprintf(GFP_KERNEL,
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"%s-charging-blink-full-solid", psy->name);
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if (!psy->charging_blink_full_solid_trig_name)
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goto charging_blink_full_solid_failed;
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led_trigger_register_simple(psy->charging_full_trig_name,
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&psy->charging_full_trig);
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led_trigger_register_simple(psy->charging_trig_name,
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&psy->charging_trig);
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led_trigger_register_simple(psy->full_trig_name,
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&psy->full_trig);
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led_trigger_register_simple(psy->charging_blink_full_solid_trig_name,
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&psy->charging_blink_full_solid_trig);
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goto success;
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charging_blink_full_solid_failed:
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kfree(psy->full_trig_name);
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full_failed:
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kfree(psy->charging_trig_name);
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charging_failed:
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kfree(psy->charging_full_trig_name);
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charging_full_failed:
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rc = -ENOMEM;
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success:
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return rc;
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}
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static void power_supply_remove_bat_triggers(struct power_supply *psy)
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{
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led_trigger_unregister_simple(psy->charging_full_trig);
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led_trigger_unregister_simple(psy->charging_trig);
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led_trigger_unregister_simple(psy->full_trig);
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led_trigger_unregister_simple(psy->charging_blink_full_solid_trig);
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kfree(psy->charging_blink_full_solid_trig_name);
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kfree(psy->full_trig_name);
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kfree(psy->charging_trig_name);
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kfree(psy->charging_full_trig_name);
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}
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/* Generated power specific LEDs triggers. */
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static void power_supply_update_gen_leds(struct power_supply *psy)
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{
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union power_supply_propval online;
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if (psy->get_property(psy, POWER_SUPPLY_PROP_ONLINE, &online))
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return;
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dev_dbg(psy->dev, "%s %d\n", __func__, online.intval);
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if (online.intval)
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led_trigger_event(psy->online_trig, LED_FULL);
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else
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led_trigger_event(psy->online_trig, LED_OFF);
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}
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static int power_supply_create_gen_triggers(struct power_supply *psy)
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{
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int rc = 0;
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psy->online_trig_name = kasprintf(GFP_KERNEL, "%s-online", psy->name);
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if (!psy->online_trig_name)
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goto online_failed;
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led_trigger_register_simple(psy->online_trig_name, &psy->online_trig);
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goto success;
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online_failed:
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rc = -ENOMEM;
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success:
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return rc;
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}
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static void power_supply_remove_gen_triggers(struct power_supply *psy)
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{
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led_trigger_unregister_simple(psy->online_trig);
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kfree(psy->online_trig_name);
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}
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/* Choice what triggers to create&update. */
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void power_supply_update_leds(struct power_supply *psy)
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{
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if (psy->type == POWER_SUPPLY_TYPE_BATTERY)
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power_supply_update_bat_leds(psy);
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else
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power_supply_update_gen_leds(psy);
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}
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int power_supply_create_triggers(struct power_supply *psy)
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{
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if (psy->type == POWER_SUPPLY_TYPE_BATTERY)
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return power_supply_create_bat_triggers(psy);
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return power_supply_create_gen_triggers(psy);
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}
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void power_supply_remove_triggers(struct power_supply *psy)
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{
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if (psy->type == POWER_SUPPLY_TYPE_BATTERY)
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power_supply_remove_bat_triggers(psy);
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else
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power_supply_remove_gen_triggers(psy);
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}
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