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Linux kernel mirror (for testing)
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1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * Functions private to power supply class
4 *
5 * Copyright © 2007 Anton Vorontsov <cbou@mail.ru>
6 * Copyright © 2004 Szabolcs Gyurko
7 * Copyright © 2003 Ian Molton <spyro@f2s.com>
8 *
9 * Modified: 2004, Oct Szabolcs Gyurko
10 */
11
12#include <linux/lockdep.h>
13
14struct device;
15struct device_type;
16struct power_supply;
17
18extern int power_supply_property_is_writeable(struct power_supply *psy,
19 enum power_supply_property psp);
20extern bool power_supply_has_property(struct power_supply *psy,
21 enum power_supply_property psp);
22extern bool power_supply_ext_has_property(const struct power_supply_ext *ext,
23 enum power_supply_property psp);
24
25struct power_supply_ext_registration {
26 struct list_head list_head;
27 const struct power_supply_ext *ext;
28 struct device *dev;
29 void *data;
30};
31
32/* Make sure that the macro is a single expression */
33#define power_supply_for_each_extension(pos, psy) \
34 if ( ({ lockdep_assert_held(&(psy)->extensions_sem); 0; }) ) \
35 ; \
36 else \
37 list_for_each_entry(pos, &(psy)->extensions, list_head) \
38
39#ifdef CONFIG_SYSFS
40
41extern void __init power_supply_init_attrs(void);
42extern int power_supply_uevent(const struct device *dev, struct kobj_uevent_env *env);
43extern const struct attribute_group *power_supply_attr_groups[];
44extern int power_supply_sysfs_add_extension(struct power_supply *psy,
45 const struct power_supply_ext *ext,
46 struct device *dev);
47extern void power_supply_sysfs_remove_extension(struct power_supply *psy,
48 const struct power_supply_ext *ext);
49
50#else
51
52static inline void power_supply_init_attrs(void) {}
53#define power_supply_attr_groups NULL
54#define power_supply_uevent NULL
55static inline int power_supply_sysfs_add_extension(struct power_supply *psy,
56 const struct power_supply_ext *ext,
57 struct device *dev)
58{ return 0; }
59static inline void power_supply_sysfs_remove_extension(struct power_supply *psy,
60 const struct power_supply_ext *ext) {}
61
62#endif /* CONFIG_SYSFS */
63
64#ifdef CONFIG_LEDS_TRIGGERS
65
66extern void power_supply_update_leds(struct power_supply *psy);
67extern int power_supply_create_triggers(struct power_supply *psy);
68extern void power_supply_remove_triggers(struct power_supply *psy);
69
70#else
71
72static inline void power_supply_update_leds(struct power_supply *psy) {}
73static inline int power_supply_create_triggers(struct power_supply *psy)
74{ return 0; }
75static inline void power_supply_remove_triggers(struct power_supply *psy) {}
76
77#endif /* CONFIG_LEDS_TRIGGERS */
78
79#ifdef CONFIG_POWER_SUPPLY_HWMON
80
81int power_supply_add_hwmon_sysfs(struct power_supply *psy);
82void power_supply_remove_hwmon_sysfs(struct power_supply *psy);
83
84#else
85
86static inline int power_supply_add_hwmon_sysfs(struct power_supply *psy)
87{
88 return 0;
89}
90
91static inline
92void power_supply_remove_hwmon_sysfs(struct power_supply *psy) {}
93
94#endif /* CONFIG_POWER_SUPPLY_HWMON */