/*
* battery.c - ACPI Battery Driver (Revision: 2.0)
*
* Copyright (C) 2007 Alexey Starikovskiy <astarikovskiy@suse.de>
* Copyright (C) 2004-2007 Vladimir Lebedev <vladimir.p.lebedev@intel.com>
* Copyright (C) 2001, 2002 Andy Grover <andrew.grover@intel.com>
* Copyright (C) 2001, 2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or (at
* your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/types.h>
#include <linux/jiffies.h>
#include <linux/async.h>
#include <linux/dmi.h>
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/suspend.h>
#include <asm/unaligned.h>
#ifdef CONFIG_ACPI_PROCFS_POWER
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <linux/uaccess.h>
#endif
#include <linux/acpi.h>
#include <linux/power_supply.h>
#include "battery.h"
#define PREFIX "ACPI: "
#define ACPI_BATTERY_VALUE_UNKNOWN 0xFFFFFFFF
#define ACPI_BATTERY_DEVICE_NAME "Battery"
/* Battery power unit: 0 means mW, 1 means mA */
#define ACPI_BATTERY_POWER_UNIT_MA 1
#define ACPI_BATTERY_STATE_DISCHARGING 0x1
#define ACPI_BATTERY_STATE_CHARGING 0x2
#define ACPI_BATTERY_STATE_CRITICAL 0x4
#define _COMPONENT ACPI_BATTERY_COMPONENT
ACPI_MODULE_NAME("battery");
MODULE_AUTHOR("Paul Diefenbaugh");
MODULE_AUTHOR("Alexey Starikovskiy <astarikovskiy@suse.de>");
MODULE_DESCRIPTION("ACPI Battery Driver");
MODULE_LICENSE("GPL");
static async_cookie_t async_cookie;
static bool battery_driver_registered;
static int battery_bix_broken_package;
static int battery_notification_delay_ms;
static unsigned int cache_time = 1000;
module_param(cache_time, uint, 0644);
MODULE_PARM_DESC(cache_time, "cache time in milliseconds");
#ifdef CONFIG_ACPI_PROCFS_POWER
extern struct proc_dir_entry *acpi_lock_battery_dir(void);
extern void *acpi_unlock_battery_dir(struct proc_dir_entry *acpi_battery_dir);
enum acpi_battery_files {
info_tag = 0,
state_tag,
alarm_tag,
ACPI_BATTERY_NUMFILES,
};
#endif
static const struct acpi_device_id battery_device_ids[] = {
{"PNP0C0A", 0},
{"", 0},
};
MODULE_DEVICE_TABLE(acpi, battery_device_ids);
/* Lists of PMIC ACPI HIDs with an (often better) native battery driver */
static const char * const <