len0rd/rockbox
1
0
Fork 1
mirror of https://github.com/Rockbox/rockbox.git synced 2025-12-09 05:05:20 -05:00
Code Issues Projects Releases Packages Wiki Activity Actions

Fix battery meter on Sansa Connect.

Browse source 
Use the battery capacity percents reported by AVR. Internally fake linear voltage scale is used (1 mV = 1%).


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@31049 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Tomasz Moń 2011-11-24 18:55:11 +00:00
parent e1949696d9
commit 62f5027650
2 changed files with 20 additions and 5 deletions
Download patch file Download diff file Expand all files Collapse all files

8
firmware/target/arm/tms320dm320/sansa-connect/avr-sansaconnect.c
View file

@ -297,6 +297,8 @@ void avr_hid_init(void)
avr_hid_sync();
}
/* defined in powermgmt-sansaconnect.c */
void set_battery_level(unsigned int level);
static void avr_hid_get_state(void)
{
@ -309,6 +311,12 @@ static void avr_hid_get_state(void)
spi_txrx(cmd, buf, sizeof(cmd));
/*
* buf[8] contains some battery/charger related information (unknown)
* buf[9] contains battery level in percents (0-100)
*/
set_battery_level((unsigned int)buf[9]);
spi_txrx(cmd_empty, NULL, 1); /* request interrupt on button press */
parse_button_state(buf);

17
firmware/target/arm/tms320dm320/sansa-connect/powermgmt-sansaconnect.c
View file

@ -24,9 +24,10 @@
#include "powermgmt.h"
#include "kernel.h"
/* THIS CONTAINS CURRENTLY DUMMY CODE! */
/* Use fake linear scale as AVR does the voltage to percentage conversion */
static unsigned int current_battery_level = 100;
static const unsigned short current_voltage = 3910;
const unsigned short battery_level_dangerous[BATTERY_TYPES_COUNT] =
{
0
@ -40,17 +41,23 @@ const unsigned short battery_level_shutoff[BATTERY_TYPES_COUNT] =
/* voltages (millivolt) of 0%, 10%, ... 100% when charging disabled */
const unsigned short percent_to_volt_discharge[BATTERY_TYPES_COUNT][11] =
{
{ 100, 300, 400, 500, 600, 700, 800, 900, 1000, 1200, 1320 },
{ 0, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100 },
};
/* voltages (millivolt) of 0%, 10%, ... 100% when charging enabled */
const unsigned short percent_to_volt_charge[11] =
{
100, 300, 400, 500, 600, 700, 800, 900, 1000, 1200, 1320,
0, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100,
};
/* Returns battery voltage from ADC [millivolts] */
unsigned int battery_adc_voltage(void)
{
return current_voltage;
return current_battery_level;
}
void set_battery_level(unsigned int level)
{
current_battery_level = level;
}