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M:Robe 500: Add backlight cleanups and fix power management so that dangerous and shutoff voltages are taken care of, carge discharge curves are better modeled.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@20849 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Karl Kurbjun 2009-05-04 04:14:52 +00:00
parent ad031e903c
commit f9fae86de2
3 changed files with 18 additions and 11 deletions
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9
firmware/target/arm/tms320dm320/mrobe-500/backlight-mr500.c
View file

@ -29,8 +29,6 @@
#include "spi-target.h"
#include "lcd-target.h"
int _backlight_brightness=DEFAULT_BRIGHTNESS_SETTING;
static void _backlight_write_brightness(int brightness)
{
uint8_t bl_command[] = {0xa4, 0x00, brightness, 0xbb};
@ -41,7 +39,9 @@ void _backlight_on(void)
{
lcd_awake(); /* power on lcd + visible display */
_backlight_write_brightness(_backlight_brightness);
#if !defined(CONFIG_BACKLIGHT_FADING)
_backlight_write_brightness(backlight_brightness);
#endif
}
void _backlight_off(void)
@ -52,7 +52,6 @@ void _backlight_off(void)
/* Assumes that the backlight has been initialized */
void _backlight_set_brightness(int brightness)
{
_backlight_brightness=brightness;
_backlight_write_brightness(brightness);
}
@ -65,6 +64,6 @@ void __backlight_dim(bool dim_now)
bool _backlight_init(void)
{
_backlight_set_brightness(_backlight_brightness);
_backlight_set_brightness(backlight_brightness);
return true;
}

16
firmware/target/arm/tms320dm320/mrobe-500/powermgmt-mr500.c
View file

@ -25,29 +25,35 @@
#include "tsc2100.h"
#include "kernel.h"
unsigned short current_bat2 = 3910;
unsigned short current_aux = 3910;
static unsigned short current_voltage = 3910;
const unsigned short battery_level_dangerous[BATTERY_TYPES_COUNT] =
{
0
3450
};
const unsigned short battery_level_shutoff[BATTERY_TYPES_COUNT] =
{
0
3400
};
/* Right now these are linear translations, it would be good to model them
* appropriate to the actual battery curve.
*/
/* 6.10 format */
/* voltages (millivolt) of 0%, 10%, ... 100% when charging disabled */
const unsigned short percent_to_volt_discharge[BATTERY_TYPES_COUNT][11] =
{
{ 375, 1125, 1500, 1875, 2250, 2625, 3000, 3375, 3750, 4500, 4950 },
{ 3400, 3300, 3600, 3700, 3800, 3900, 4000, 4100, 4200, 4300, 4400 },
};
/* voltages (millivolt) of 0%, 10%, ... 100% when charging enabled */
const unsigned short percent_to_volt_charge[11] =
{
375, 1125, 1500, 1875, 2250, 2625, 3000, 3375, 3750, 4500, 4950,
4000, 4105, 4210, 4315, 4420, 4525, 4630, 4735, 4840, 4945, 5050,
};
/* Returns battery voltage from ADC [millivolts] */
@ -59,6 +65,8 @@ unsigned int battery_adc_voltage(void)
if(tsc2100_read_volt(&bat1, &bat2, &aux)){
current_voltage=((short)((int)(bat1<<10)/4096*6*2.5));
current_bat2=((short)((int)(bat2<<10)/4096*6*2.5));
current_aux=((short)((int)(aux<<10)/4096*6*2.5));
}
if (TIME_BEFORE(last_tick+2*HZ, current_tick))