diff options
Diffstat (limited to 'firmware/target/arm/pnx0101/iriver-ifp7xx/powermgmt-ifp7xx.c')
-rw-r--r-- | firmware/target/arm/pnx0101/iriver-ifp7xx/powermgmt-ifp7xx.c | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/firmware/target/arm/pnx0101/iriver-ifp7xx/powermgmt-ifp7xx.c b/firmware/target/arm/pnx0101/iriver-ifp7xx/powermgmt-ifp7xx.c new file mode 100644 index 0000000000..9fcc150f86 --- /dev/null +++ b/firmware/target/arm/pnx0101/iriver-ifp7xx/powermgmt-ifp7xx.c @@ -0,0 +1,53 @@ +/*************************************************************************** + * __________ __ ___. + * Open \______ \ ____ ____ | | _\_ |__ _______ ___ + * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / + * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < + * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ + * \/ \/ \/ \/ \/ + * $Id$ + * + * Copyright (C) 2002 by Heikki Hannikainen, Uwe Freese + * Revisions copyright (C) 2005 by Gerald Van Baren + * + * All files in this archive are subject to the GNU General Public License. + * See the file COPYING in the source tree root for full license agreement. + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY + * KIND, either express or implied. + * + ****************************************************************************/ + +#include "config.h" +#include "adc.h" +#include "powermgmt.h" + +const unsigned short battery_level_dangerous[BATTERY_TYPES_COUNT] = +{ + 1050, 1150 +}; + +const unsigned short battery_level_shutoff[BATTERY_TYPES_COUNT] = +{ + 1050, 1150 /* FIXME: just copied from above, was missing in powermgmt.c */ +}; + +/* voltages (millivolt) of 0%, 10%, ... 100% when charging disabled */ +const unsigned short percent_to_volt_discharge[BATTERY_TYPES_COUNT][11] = +{ + /* These values are the same as for Ondio divided by 3. */ + /* May need recalibration. */ + { 930, 1080, 1140, 1180, 1210, 1250, 1280, 1320, 1360, 1420, 1580 }, /* alkaline */ + { 1030, 1180, 1210, 1230, 1240, 1250, 1260, 1270, 1280, 1290, 1350 } /* NiMH */ +}; + +/* TODO: only roughly correct */ +#define BATTERY_SCALE_FACTOR 3072 +/* full-scale ADC readout (2^10) in millivolt */ + +/* Returns battery voltage from ADC [millivolts] */ +unsigned int battery_adc_voltage(void) +{ + return (adc_read(ADC_UNREG_POWER) * BATTERY_SCALE_FACTOR) >> 10; +} + |