| 1 | /* SPDX-License-Identifier: GPL-2.0-only */ | 
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| 2 | /* | 
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| 3 | *  Functions private to power supply class | 
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| 4 | * | 
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| 5 | *  Copyright © 2007  Anton Vorontsov <cbou@mail.ru> | 
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| 6 | *  Copyright © 2004  Szabolcs Gyurko | 
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| 7 | *  Copyright © 2003  Ian Molton <spyro@f2s.com> | 
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| 8 | * | 
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| 9 | *  Modified: 2004, Oct     Szabolcs Gyurko | 
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| 10 | */ | 
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| 11 |  | 
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| 12 | #include <linux/lockdep.h> | 
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| 13 |  | 
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| 14 | struct device; | 
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| 15 | struct device_type; | 
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| 16 | struct power_supply; | 
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| 17 |  | 
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| 18 | extern int power_supply_property_is_writeable(struct power_supply *psy, | 
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| 19 | enum power_supply_property psp); | 
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| 20 | extern bool power_supply_has_property(struct power_supply *psy, | 
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| 21 | enum power_supply_property psp); | 
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| 22 | extern bool power_supply_ext_has_property(const struct power_supply_ext *ext, | 
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| 23 | enum power_supply_property psp); | 
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| 24 |  | 
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| 25 | struct power_supply_ext_registration { | 
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| 26 | struct list_head list_head; | 
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| 27 | const struct power_supply_ext *ext; | 
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| 28 | struct device *dev; | 
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| 29 | void *data; | 
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| 30 | }; | 
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| 31 |  | 
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| 32 | /* Make sure that the macro is a single expression */ | 
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| 33 | #define power_supply_for_each_extension(pos, psy)			\ | 
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| 34 | if ( ({ lockdep_assert_held(&(psy)->extensions_sem); 0; }) )	\ | 
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| 35 | ;							\ | 
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| 36 | else								\ | 
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| 37 | list_for_each_entry(pos, &(psy)->extensions, list_head)	\ | 
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| 38 |  | 
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| 39 | #ifdef CONFIG_SYSFS | 
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| 40 |  | 
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| 41 | extern void __init power_supply_init_attrs(void); | 
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| 42 | extern int power_supply_uevent(const struct device *dev, struct kobj_uevent_env *env); | 
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| 43 | extern const struct attribute_group *power_supply_attr_groups[]; | 
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| 44 | extern int power_supply_sysfs_add_extension(struct power_supply *psy, | 
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| 45 | const struct power_supply_ext *ext, | 
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| 46 | struct device *dev); | 
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| 47 | extern void power_supply_sysfs_remove_extension(struct power_supply *psy, | 
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| 48 | const struct power_supply_ext *ext); | 
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| 49 |  | 
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| 50 | #else | 
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| 51 |  | 
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| 52 | static inline void power_supply_init_attrs(void) {} | 
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| 53 | #define power_supply_attr_groups NULL | 
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| 54 | #define power_supply_uevent NULL | 
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| 55 | static inline int power_supply_sysfs_add_extension(struct power_supply *psy, | 
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| 56 | const struct power_supply_ext *ext, | 
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| 57 | struct device *dev) | 
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| 58 | { return 0; } | 
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| 59 | static inline void power_supply_sysfs_remove_extension(struct power_supply *psy, | 
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| 60 | const struct power_supply_ext *ext) {} | 
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| 61 |  | 
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| 62 | #endif /* CONFIG_SYSFS */ | 
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| 63 |  | 
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| 64 | #ifdef CONFIG_LEDS_TRIGGERS | 
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| 65 |  | 
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| 66 | extern void power_supply_update_leds(struct power_supply *psy); | 
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| 67 | extern int power_supply_create_triggers(struct power_supply *psy); | 
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| 68 | extern void power_supply_remove_triggers(struct power_supply *psy); | 
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| 69 |  | 
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| 70 | #else | 
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| 71 |  | 
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| 72 | static inline void power_supply_update_leds(struct power_supply *psy) {} | 
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| 73 | static inline int power_supply_create_triggers(struct power_supply *psy) | 
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| 74 | { return 0; } | 
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| 75 | static inline void power_supply_remove_triggers(struct power_supply *psy) {} | 
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| 76 |  | 
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| 77 | #endif /* CONFIG_LEDS_TRIGGERS */ | 
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| 78 |  | 
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| 79 | #ifdef CONFIG_POWER_SUPPLY_HWMON | 
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| 80 |  | 
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| 81 | int power_supply_add_hwmon_sysfs(struct power_supply *psy); | 
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| 82 | void power_supply_remove_hwmon_sysfs(struct power_supply *psy); | 
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| 83 |  | 
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| 84 | #else | 
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| 85 |  | 
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| 86 | static inline int power_supply_add_hwmon_sysfs(struct power_supply *psy) | 
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| 87 | { | 
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| 88 | return 0; | 
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| 89 | } | 
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| 90 |  | 
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| 91 | static inline | 
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| 92 | void power_supply_remove_hwmon_sysfs(struct power_supply *psy) {} | 
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| 93 |  | 
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| 94 | #endif /* CONFIG_POWER_SUPPLY_HWMON */ | 
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| 95 |  | 
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