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Enable battery charging detection for iBasso DX50/DX90.

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This changes iBasso DX50/DX90 config from CHARGING_SIMPLE (Simple, hardware
controlled charging (CPU cannot read charger state but may read when power is
plugged-in) to CHARGING_MONITOR (Hardware controlled charging with monitoring
(CPU is able to read HW charging state and when power is plugged-in)).

Not really usefull at the moment, since USB connection (charging) is not (yet)
gracefully handled for iBasso devices.

Change-Id: I55da81b10637d4de88d713ea5eba08eb59bc629f
Reviewed-on: http://gerrit.rockbox.org/1010
Reviewed-by: Michael Giacomelli <giac2000@hotmail.com>
This commit is contained in:
Udo Schläfer 2014-10-13 21:21:01 +02:00 committed by Michael Giacomelli
parent ac928ed7a2
commit fe519c7e4d
3 changed files with 30 additions and 5 deletions
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2
firmware/export/config/ibassodx50.h
View file

@ -99,7 +99,7 @@
#define CONFIG_BATTERY_MEASURE VOLTAGE_MEASURE
#define CONFIG_CHARGING CHARGING_SIMPLE
#define CONFIG_CHARGING CHARGING_MONITOR
#define NO_LOW_BATTERY_SHUTDOWN

2
firmware/export/config/ibassodx90.h
View file

@ -99,7 +99,7 @@
#define CONFIG_BATTERY_MEASURE VOLTAGE_MEASURE
#define CONFIG_CHARGING CHARGING_SIMPLE
#define CONFIG_CHARGING CHARGING_MONITOR
#define NO_LOW_BATTERY_SHUTDOWN

31
firmware/target/hosted/android/dx50/powermgmt-dx50.c
View file

@ -21,10 +21,12 @@
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include "config.h"
#include "power.h"
#include "powermgmt.h"
unsigned int power_input_status(void)
{
int val;
@ -34,8 +36,31 @@ unsigned int power_input_status(void)
return val?POWER_INPUT_MAIN_CHARGER:POWER_INPUT_NONE;
}
/* Values for stock PISEN battery. TODO: Needs optimization */
/* Returns true, if battery is charging, false else. */
bool charging_state( void )
{
/* Full, Charging, Discharging */
char state[9];
/* true if charging. */
bool charging = false;
FILE *f = fopen( "/sys/class/power_supply/battery/status", "r" );
if( f != NULL )
{
if( fgets( state, 9, f ) != NULL )
{
charging = ( strcmp( state, "Charging" ) == 0 );
}
}
fclose( f );
return charging;
}
/* Values for stock PISEN battery. TODO: Needs optimization */
const unsigned short battery_level_dangerous[BATTERY_TYPES_COUNT] =
{
3380
@ -52,10 +77,10 @@ const unsigned short percent_to_volt_discharge[BATTERY_TYPES_COUNT][11] =
{ 3370, 3650, 3700, 3740, 3780, 3820, 3870, 3930, 4000, 4090, 4190 }
};
/* voltages (millivolt) of 0%, 10%, ... 100% when charging enabled */
/* Voltages (millivolt) of 0%, 10%, ... 100% when charging is enabled. */
const unsigned short percent_to_volt_charge[11] =
{
3540, 3860, 3930, 3980, 4000, 4020, 4040, 4080, 4130, 4180, 4220 /* LiPo */
3370, 3650, 3700, 3740, 3780, 3820, 3870, 3930, 4000, 4090, 4190
};