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bq27x00: Give more specific reports on battery status 

The current code only reports whether the battery is charging or
discharging. But the battery also reports whether it is fully charged,
furthermore by look at if the battery is supplied we can tell whether it
is discharging or not charging.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Rodolfo Giometti <giometti@linux.it>
Tested-by: Grazvydas Ignotas <notasas@gmail.com>
This commit is contained in:
Lars-Peter Clausen 2010-09-18 17:31:16 +02:00
parent fd9b958c55
commit c1b9ab67e7
1 changed files with 6 additions and 1 deletions
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7
drivers/power/bq27x00_battery.c
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@ -54,6 +54,7 @@
#define BQ27000_REG_RSOC 0x0B /* Relative State-of-Charge */
#define BQ27000_REG_ILMD 0x76 /* Initial last measured discharge */
#define BQ27000_FLAG_CHGS BIT(7)
#define BQ27000_FLAG_FC BIT(5)
#define BQ27500_REG_SOC 0x2c
#define BQ27500_REG_DCAP 0x3C /* Design capacity */
@ -365,8 +366,12 @@ static int bq27x00_battery_status(struct bq27x00_device_info *di,
else
status = POWER_SUPPLY_STATUS_CHARGING;
} else {
if (di->cache.flags & BQ27000_FLAG_CHGS)
if (di->cache.flags & BQ27000_FLAG_FC)
status = POWER_SUPPLY_STATUS_FULL;
else if (di->cache.flags & BQ27000_FLAG_CHGS)
status = POWER_SUPPLY_STATUS_CHARGING;
else if (power_supply_am_i_supplied(&di->bat))
status = POWER_SUPPLY_STATUS_NOT_CHARGING;
else
status = POWER_SUPPLY_STATUS_DISCHARGING;
}