linux/drivers/power/supply/power_supply_sysfs.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 *  Sysfs interface for the universal power supply monitor class
 *
 *  Copyright © 2007  David Woodhouse <[email protected]>
 *  Copyright © 2007  Anton Vorontsov <[email protected]>
 *  Copyright © 2004  Szabolcs Gyurko
 *  Copyright © 2003  Ian Molton <[email protected]>
 *
 *  Modified: 2004, Oct     Szabolcs Gyurko
 */

#include <linux/ctype.h>
#include <linux/device.h>
#include <linux/power_supply.h>
#include <linux/slab.h>
#include <linux/stat.h>
#include <linux/string_helpers.h>

#include "power_supply.h"

#define MAX_PROP_NAME_LEN …

struct power_supply_attr { … };

#define _POWER_SUPPLY_ATTR(_name, _text, _len) …

#define POWER_SUPPLY_ATTR(_name) …
#define _POWER_SUPPLY_ENUM_ATTR(_name, _text) …
#define POWER_SUPPLY_ENUM_ATTR(_name) …

static const char * const POWER_SUPPLY_TYPE_TEXT[] = …;

static const char * const POWER_SUPPLY_USB_TYPE_TEXT[] = …;

static const char * const POWER_SUPPLY_STATUS_TEXT[] = …;

static const char * const POWER_SUPPLY_CHARGE_TYPE_TEXT[] = …;

static const char * const POWER_SUPPLY_HEALTH_TEXT[] = …;

static const char * const POWER_SUPPLY_TECHNOLOGY_TEXT[] = …;

static const char * const POWER_SUPPLY_CAPACITY_LEVEL_TEXT[] = …;

static const char * const POWER_SUPPLY_SCOPE_TEXT[] = …;

static const char * const POWER_SUPPLY_CHARGE_BEHAVIOUR_TEXT[] = …;

static struct power_supply_attr power_supply_attrs[] = …;
#define POWER_SUPPLY_ATTR_CNT …

static struct attribute *
__power_supply_attrs[POWER_SUPPLY_ATTR_CNT + 1];

static struct power_supply_attr *to_ps_attr(struct device_attribute *attr)
{ … }

static enum power_supply_property dev_attr_psp(struct device_attribute *attr)
{ … }

static ssize_t power_supply_show_usb_type(struct device *dev,
					  const struct power_supply_desc *desc,
					  union power_supply_propval *value,
					  char *buf)
{ … }

static ssize_t power_supply_show_property(struct device *dev,
					  struct device_attribute *attr,
					  char *buf) { … }

static ssize_t power_supply_store_property(struct device *dev,
					   struct device_attribute *attr,
					   const char *buf, size_t count) { … }

static umode_t power_supply_attr_is_visible(struct kobject *kobj,
					   struct attribute *attr,
					   int attrno)
{ … }

static const struct attribute_group power_supply_attr_group = …;

const struct attribute_group *power_supply_attr_groups[] = …;

void power_supply_init_attrs(void)
{ … }

static int add_prop_uevent(const struct device *dev, struct kobj_uevent_env *env,
			   enum power_supply_property prop, char *prop_buf)
{ … }

int power_supply_uevent(const struct device *dev, struct kobj_uevent_env *env)
{ … }

ssize_t power_supply_charge_behaviour_show(struct device *dev,
					   unsigned int available_behaviours,
					   enum power_supply_charge_behaviour current_behaviour,
					   char *buf)
{ … }
EXPORT_SYMBOL_GPL(…);

int power_supply_charge_behaviour_parse(unsigned int available_behaviours, const char *buf)
{ … }
EXPORT_SYMBOL_GPL(…);