189 lines
6.5 KiB
C
189 lines
6.5 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2002 by Heikki Hannikainen, Uwe Freese
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#ifndef _POWERMGMT_H_
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#define _POWERMGMT_H_
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#include <stdbool.h>
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#include "config.h"
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#define POWER_HISTORY_LEN 2*60 /* 2 hours of samples, one per minute */
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enum charge_state_type
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{
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/* sorted by increasing charging current (do not change!) */
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#if CONFIG_CHARGING >= CHARGING_MONITOR
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CHARGE_STATE_DISABLED = -2, /* Disable charger use (safety measure) */
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CHARGE_STATE_ERROR = -1, /* Some error occurred that should not allow
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turning on the charger again by software
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without user intervention (ie. replug) */
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#endif
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DISCHARGING = 0,
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#if CONFIG_CHARGING >= CHARGING_MONITOR
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TRICKLE, /* For NiCd, battery maintenence phase */
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/* For LiIon, low-current precharge phase */
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TOPOFF, /* For NiCd, waiting for dead zone */
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/* For LiIon, constant voltage phase */
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CHARGING, /* For NiCd, main charge phase */
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/* For LiIon, constant current phase */
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#endif
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};
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/* tells what the charger is doing */
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extern enum charge_state_type charge_state;
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#if CONFIG_CHARGING
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/*
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* Flag that the charger has been plugged in/removed: this is set for exactly
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* one time through the power loop when the charger has been plugged in.
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*/
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enum charger_input_state_type
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{
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NO_CHARGER = 0, /* No charger is present */
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CHARGER_UNPLUGGED, /* Transitional state during CHARGER=>NO_CHARGER */
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CHARGER_PLUGGED, /* Transitional state during NO_CHARGER=>CHARGER */
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CHARGER /* Charger is present */
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};
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/* tells the state of the charge input */
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extern enum charger_input_state_type charger_input_state;
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/* Power input status saved on the power thread each loop */
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extern unsigned int power_thread_inputs;
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#endif /* CONFIG_CHARGING */
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#if CONFIG_CHARGING == CHARGING_TARGET
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/* Include target-specific definitions */
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#include "powermgmt-target.h"
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#endif
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/* Start up power management thread */
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void powermgmt_init(void) INIT_ATTR;
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/* Generic current values that are intentionally meaningless - config header
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* should define proper numbers.*/
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#ifndef CURRENT_BACKLIGHT
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#define CURRENT_BACKLIGHT 5 /* additional current when backlight always on */
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#endif
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#if defined(HAVE_RECORDING) && !defined(CURRENT_RECORD)
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#define CURRENT_RECORD 2 /* additional recording current */
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#endif /* HAVE_RECORDING && !CURRENT_RECORD*/
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#ifndef CURRENT_USB
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#define CURRENT_USB 2 /* usual current in mA in USB mode */
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#endif
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#if defined(HAVE_REMOTE_LCD) && !defined(CURRENT_REMOTE)
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#define CURRENT_REMOTE 2 /* additional current when remote connected */
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#endif /* CURRENT_REMOTE && !HAVE_REMOTE_LCD */
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#if CONFIG_CHARGING
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#ifndef CURRENT_MAX_CHG
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#define CURRENT_MAX_CHG 350 /* maximum charging current */
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#endif
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#endif /* CONFIG_CHARGING */
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#ifdef CHARGING_DEBUG_FILE
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#define POWERMGMT_DEBUG_STACK ((0x1000)/sizeof(long))
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#else
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#define POWERMGMT_DEBUG_STACK 0
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#endif
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#ifndef BATT_AVE_SAMPLES
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/* slw filter constant unless otherwise specified */
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#define BATT_AVE_SAMPLES 128
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#endif
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#ifndef POWER_THREAD_STEP_TICKS
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/* 2HZ sample rate unless otherwise specified */
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#define POWER_THREAD_STEP_TICKS (HZ/2)
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#endif
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extern unsigned short power_history[POWER_HISTORY_LEN];
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extern const unsigned short battery_level_dangerous[BATTERY_TYPES_COUNT];
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extern const unsigned short battery_level_shutoff[BATTERY_TYPES_COUNT];
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extern const unsigned short percent_to_volt_discharge[BATTERY_TYPES_COUNT][11];
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#if CONFIG_CHARGING
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extern const unsigned short percent_to_volt_charge[11];
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#endif
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/* Returns battery status, filtered for runtime estimation */
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int battery_level(void); /* percent */
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int battery_time(void); /* minutes */
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int battery_voltage(void); /* filtered batt. voltage in millivolts */
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/* Implemented by the target, unfiltered */
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int _battery_level(void); /* percent */
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int _battery_time(void); /* minutes */
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int _battery_voltage(void); /* voltage in millivolts */
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#if CONFIG_CHARGING >= CHARGING_TARGET
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void powermgmt_init_target(void);
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void charging_algorithm_close(void);
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void charging_algorithm_step(void);
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#endif
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#ifdef HAVE_BATTERY_SWITCH
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unsigned int input_millivolts(void); /* voltage that device is running from */
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#endif /* HAVE_BATTERY_SWITCH */
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#if defined(HAVE_BATTERY_SWITCH) || defined(HAVE_RESET_BATTERY_FILTER)
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/* Set the filtered battery voltage (to adjust it before beginning a charge
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* cycle for instance where old, loaded readings will likely be invalid).
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* Also readjust when battery switch is opened or closed.
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*/
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void reset_battery_filter(int millivolts);
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#endif /* HAVE_BATTERY_SWITCH || HAVE_RESET_BATTERY_FILTER */
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/* read unfiltered battery info */
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void battery_read_info(int *voltage, int *level);
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/* Tells if the battery level is safe for disk writes */
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bool battery_level_safe(void);
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void set_poweroff_timeout(int timeout);
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void set_battery_capacity(int capacity); /* set local battery capacity value */
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int get_battery_capacity(void); /* get local battery capacity value */
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void set_battery_type(int type); /* set local battery type */
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void set_sleeptimer_duration(int minutes);
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int get_sleep_timer(void);
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void set_keypress_restarts_sleep_timer(bool enable);
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void handle_auto_poweroff(void);
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void set_car_adapter_mode(bool setting);
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void reset_poweroff_timer(void);
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void cancel_shutdown(void);
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void shutdown_hw(void);
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void sys_poweroff(void);
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/* Returns true if the system should force shutdown for some reason -
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* eg. low battery */
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bool query_force_shutdown(void);
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#ifdef HAVE_ACCESSORY_SUPPLY
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void accessory_supply_set(bool);
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#endif
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#ifdef HAVE_LINEOUT_POWEROFF
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void lineout_set(bool);
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#endif
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#endif /* _POWERMGMT_H_ */
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