f09c5f4c63
- The battery level (percentage) is more realistic and considers if the charger is on. - It considers the "lazyness" a battery shows when the charging has just turned on or off (see below). But this is not perfect by now. - The battery level is good enough to estimate the remaining running time and the remaining charging time. And so the info screen now shows this info. - The maximum time of a charging cycle is now dynamically calculated out of the battery level (percentage) and is not a fixed value. - A minimum of 60 minutes is waited after a charging cycle stops before another one starts. - Added another screen in the battery debug screen (press down three times). git-svn-id: svn://svn.rockbox.org/rockbox/trunk@2913 a1c6a512-1295-4272-9138-f99709370657
79 lines
3.3 KiB
C
79 lines
3.3 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
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*
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* All files in this archive are subject to the GNU General Public License.
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* See the file COPYING in the source tree root for full license agreement.
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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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#ifndef SIMULATOR
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#define BATTERY_LEVEL_SHUTDOWN 450 /* 4.5V */
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#define BATTERY_LEVEL_EMPTY 465 /* 4.65V */
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#define BATTERY_LEVEL_DANGEROUS 475 /* 4.75V */
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#define BATTERY_LEVEL_FULL 585 /* 5.85V */
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#define BATTERY_RANGE (BATTERY_LEVEL_FULL - BATTERY_LEVEL_EMPTY)
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#define POWER_HISTORY_LEN 2*60 /* 2 hours of samples, one per minute */
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#define POWER_AVG_N 4 /* how many samples to take for each measurement */
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#define POWER_AVG_SLEEP 10 /* how long do we sleep between each measurement */
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#define CHARGE_END_NEGD 6 /* stop when N minutes have passed with
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* avg delta being < -0.05 V */
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#define CHARGE_END_ZEROD 50 /* stop when N minutes have passed with
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* avg delta being < 0.005 V */
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#ifdef HAVE_CHARGE_CTRL
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#define POWER_MESSAGE_LEN 32 /* power thread status message */
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#define CHARGE_MAX_TIME 8*60 /* minutes: maximum charging time */
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#define CHARGE_MIN_TIME 10 /* minutes: minimum charging time */
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#define CHARGE_RESTART_HI 95 /* %: when to restart charging in 'charge' mode */
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#define CHARGE_RESTART_LO 10 /* %: when to restart charging in 'discharge' mode */
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#define CHARGE_PAUSE_LEN 60 /* how many minutes to pause between charging cycles */
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extern char power_message[POWER_MESSAGE_LEN];
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extern char charge_restart_level;
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extern int powermgmt_last_cycle_startstop_min; /* how many minutes ago was the charging started or stopped? */
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extern int powermgmt_last_cycle_level; /* which level had the batteries at this time? */
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extern int battery_lazyness[20]; /* how does the battery react when plugging in/out the charger */
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#endif /* HAVE_CHARGE_CTRL */
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#define BATTERY_CAPACITY 1800 /* battery capacity in mAh for runtime estimation */
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#define CURRENT_NORMAL 145 /* usual current in mA when using the AJB including some disk/backlight/... activity */
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#define CURRENT_BACKLIGHT 30 /* additional current when backlight is always on */
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#define CURRENT_CHARGING 300 /* charging current */
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extern unsigned short power_history[POWER_HISTORY_LEN];
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/* Start up power management thread */
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void power_init(void);
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#endif /* SIMULATOR */
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/* Returns battery level in percent */
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int battery_level(void);
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int battery_time(void); /* minutes */
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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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#endif
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