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Gigabeat S: Extend the upper temperature range for battery charging to 50C: OK and 45C: Resume. Currently extended disk activity can cause it to detect overtemp which doesn't quite seem correct. Add macros for the range so that they may be target-specific.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25508 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Michael Sevakis 2010-04-07 06:26:18 +00:00
parent f25f17c5b6
commit 4e8704c387
2 changed files with 17 additions and 2 deletions
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9
firmware/target/arm/imx31/gigabeat-s/powermgmt-imx31.c
View file

@ -467,8 +467,13 @@ static bool charging_ok(void)
* come back into safe range. */ * come back into safe range. */
static const signed char temp_ranges[2][2] = static const signed char temp_ranges[2][2] =
{ {
{ 0, 45 }, /* Temperature range before beginning charging */ /* Temperature range before beginning charging */
{ 5, 40 }, /* Temperature range after out-of-range detected */ { BATTERY_CHARGE_MIN,
BATTERY_CHARGE_MAX },
/* Temperature range after out-of-range detected -
charging will self-resume */
{ BATTERY_CHARGE_RESTART_MIN,
BATTERY_CHARGE_RESTART_MAX },
}; };
int temp = battery_adc_temp(); int temp = battery_adc_temp();

10
firmware/target/arm/imx31/gigabeat-s/powermgmt-target.h
View file

@ -61,6 +61,16 @@
read below 2400mV. */ read below 2400mV. */
#define CHARGER_TOTAL_TIMER 300 /* minutes */ #define CHARGER_TOTAL_TIMER 300 /* minutes */
/* Temperature readings - w/hysteresis */
/* Temperature range before beginning charging */
#define BATTERY_CHARGE_MIN 0
#define BATTERY_CHARGE_MAX 50
/* Temperature range after out-of-range detected - charging will
* self-resume */
#define BATTERY_CHARGE_RESTART_MIN 5
#define BATTERY_CHARGE_RESTART_MAX 45
/* .316 ohms is closest standard value as measured in 1% tolerance - adjust /* .316 ohms is closest standard value as measured in 1% tolerance - adjust
* relative to .100 ohm which is what the PMIC is "tuned" for. */ * relative to .100 ohm which is what the PMIC is "tuned" for. */
#define ILEVEL_ADJUST_IN(I) (100*(I) / 316) #define ILEVEL_ADJUST_IN(I) (100*(I) / 316)