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foxbox/firmware/export/powermgmt.h

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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2002 by Heikki Hannikainen, Uwe Freese
*
* 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 software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#ifndef _POWERMGMT_H_
#define _POWERMGMT_H_
#include <stdbool.h>
#define POWER_HISTORY_LEN 2*60 /* 2 hours of samples, one per minute */
enum charge_state_type
{
/* sorted by increasing charging current (do not change!) */
#if CONFIG_CHARGING >= CHARGING_MONITOR
CHARGE_STATE_DISABLED = -2, /* Disable charger use (safety measure) */
CHARGE_STATE_ERROR = -1, /* Some error occurred that should not allow
turning on the charger again by software
without user intervention (ie. replug) */
#endif
DISCHARGING = 0,
#if CONFIG_CHARGING >= CHARGING_MONITOR
TRICKLE, /* For NiCd, battery maintenence phase */
/* For LiIon, low-current precharge phase */
TOPOFF, /* For NiCd, waiting for dead zone */
/* For LiIon, constant voltage phase */
CHARGING, /* For NiCd, main charge phase */
/* For LiIon, constant current phase */
#endif
};
/* tells what the charger is doing */
extern enum charge_state_type charge_state;
#ifdef CONFIG_CHARGING
/*
* Flag that the charger has been plugged in/removed: this is set for exactly
* one time through the power loop when the charger has been plugged in.
*/
enum charger_input_state_type
{
NO_CHARGER = 0, /* No charger is present */
CHARGER_UNPLUGGED, /* Transitional state during CHARGER=>NO_CHARGER */
CHARGER_PLUGGED, /* Transitional state during NO_CHARGER=>CHARGER */
CHARGER /* Charger is present */
};
/* tells the state of the charge input */
extern enum charger_input_state_type charger_input_state;
/* Power input status saved on the power thread each loop */
extern unsigned int power_thread_inputs;
#endif /* CONFIG_CHARGING */
#if CONFIG_CHARGING == CHARGING_TARGET
/* Include target-specific definitions */
#include "powermgmt-target.h"
#endif
#ifndef SIMULATOR
/* Generic current values that are intentionally meaningless - config header
* should define proper numbers. Use insane values here to remind people
* to define the correct values in the proper header*/
#ifndef CURRENT_NORMAL
#define CURRENT_NORMAL 1 /* usual current in mA */
#endif
#ifndef CURRENT_BACKLIGHT
#define CURRENT_BACKLIGHT 1 /* additional current when backlight always on */
#endif
#ifdef HAVE_RECORDING
#ifndef CURRENT_RECORD
#define CURRENT_RECORD 1 /* additional recording current */
#endif
#endif /* HAVE_RECORDING */
#ifndef CURRENT_USB
#define CURRENT_USB 1 /* usual current in mA in USB mode */
#endif
#ifdef HAVE_REMOTE_LCD
#define CURRENT_REMOTE 1 /* additional current when remote connected */
#endif /* HAVE_REMOTE_LCD */
#if CONFIG_CHARGING
#ifndef CURRENT_MAX_CHG
#define CURRENT_MAX_CHG 350 /* maximum charging current */
#endif
#endif /* CONFIG_CHARGING */
#ifdef CHARGING_DEBUG_FILE
#define POWERMGMT_DEBUG_STACK ((0x1000)/sizeof(long))
#else
#define POWERMGMT_DEBUG_STACK 0
#endif
#ifndef BATT_AVE_SAMPLES
/* slw filter constant unless otherwise specified */
#define BATT_AVE_SAMPLES 128
#endif
#ifndef POWER_THREAD_STEP_TICKS
/* 2HZ sample rate unless otherwise specified */
#define POWER_THREAD_STEP_TICKS (HZ/2)
#endif
extern unsigned short power_history[POWER_HISTORY_LEN];
extern const unsigned short battery_level_dangerous[BATTERY_TYPES_COUNT];
extern const unsigned short battery_level_shutoff[BATTERY_TYPES_COUNT];
extern const unsigned short percent_to_volt_discharge[BATTERY_TYPES_COUNT][11];
#if CONFIG_CHARGING
extern const unsigned short percent_to_volt_charge[11];
#endif
/* Start up power management thread */
void powermgmt_init(void);
#endif /* SIMULATOR */
/* Returns battery statust */
int battery_level(void); /* percent */
int battery_time(void); /* minutes */
unsigned int battery_adc_voltage(void); /* voltage from ADC in millivolts */
unsigned int battery_voltage(void); /* filtered batt. voltage in millivolts */
#ifdef HAVE_BATTERY_SWITCH
unsigned int input_millivolts(void); /* voltage that device is running from */
#endif /* HAVE_BATTERY_SWITCH */
#if defined(HAVE_BATTERY_SWITCH) || defined(HAVE_RESET_BATTERY_FILTER)
/* Set the filtered battery voltage (to adjust it before beginning a charge
* cycle for instance where old, loaded readings will likely be invalid).
* Also readjust when battery switch is opened or closed.
*/
void reset_battery_filter(int millivolts);
#endif /* HAVE_BATTERY_SWITCH || HAVE_RESET_BATTERY_FILTER */
/* read unfiltered battery info */
void battery_read_info(int *voltage, int *level);
/* Tells if the battery level is safe for disk writes */
bool battery_level_safe(void);
void set_poweroff_timeout(int timeout);
void set_battery_capacity(int capacity); /* set local battery capacity value */
int get_battery_capacity(void); /* get local battery capacity value */
void set_battery_type(int type); /* set local battery type */
void set_sleep_timer(int seconds);
int get_sleep_timer(void);
void set_car_adapter_mode(bool setting);
void reset_poweroff_timer(void);
void cancel_shutdown(void);
void shutdown_hw(void);
void sys_poweroff(void);
/* Returns true if the system should force shutdown for some reason -
* eg. low battery */
bool query_force_shutdown(void);
#ifdef HAVE_ACCESSORY_SUPPLY
void accessory_supply_set(bool);
#endif
#endif /* _POWERMGMT_H_ */
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