diff options
| author | Pali Rohár <pali.rohar@gmail.com> | 2011-11-01 01:43:04 +0100 |
|---|---|---|
| committer | Anton Vorontsov <cbouatmailru@gmail.com> | 2011-11-25 23:57:48 +0400 |
| commit | d66bab3f3a5119084ac0ed010a7eae0000af4f16 (patch) | |
| tree | a4a82bcd3912fc54dbf1a3ff3975325e0b67ebe0 /drivers/power | |
| parent | b68f6216c5f53698379603209d3168766449fdab (diff) | |
bq27x00_battery: Add support for property POWER_SUPPLY_PROP_CAPACITY_LEVEL
Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
Diffstat (limited to 'drivers/power')
| -rw-r--r-- | drivers/power/bq27x00_battery.c | 40 |
1 files changed, 39 insertions, 1 deletions
diff --git a/drivers/power/bq27x00_battery.c b/drivers/power/bq27x00_battery.c index d238144d1e81..a5311225b964 100644 --- a/drivers/power/bq27x00_battery.c +++ b/drivers/power/bq27x00_battery.c @@ -54,12 +54,16 @@ #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_EDVF BIT(0) /* Final End-of-Discharge-Voltage flag */ +#define BQ27000_FLAG_EDV1 BIT(1) /* First End-of-Discharge-Voltage flag */ #define BQ27000_FLAG_FC BIT(5) +#define BQ27000_FLAG_CHGS BIT(7) /* Charge state flag */ #define BQ27500_REG_SOC 0x2C #define BQ27500_REG_DCAP 0x3C /* Design capacity */ #define BQ27500_FLAG_DSC BIT(0) +#define BQ27500_FLAG_SOCF BIT(1) /* State-of-Charge threshold final */ +#define BQ27500_FLAG_SOC1 BIT(2) /* State-of-Charge threshold 1 */ #define BQ27500_FLAG_FC BIT(9) #define BQ27000_RS 20 /* Resistor sense */ @@ -106,6 +110,7 @@ static enum power_supply_property bq27x00_battery_props[] = { POWER_SUPPLY_PROP_VOLTAGE_NOW, POWER_SUPPLY_PROP_CURRENT_NOW, POWER_SUPPLY_PROP_CAPACITY, + POWER_SUPPLY_PROP_CAPACITY_LEVEL, POWER_SUPPLY_PROP_TEMP, POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW, POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG, @@ -373,6 +378,36 @@ static int bq27x00_battery_status(struct bq27x00_device_info *di, return 0; } +static int bq27x00_battery_capacity_level(struct bq27x00_device_info *di, + union power_supply_propval *val) +{ + int level; + + if (di->chip == BQ27500) { + if (di->cache.flags & BQ27500_FLAG_FC) + level = POWER_SUPPLY_CAPACITY_LEVEL_FULL; + else if (di->cache.flags & BQ27500_FLAG_SOC1) + level = POWER_SUPPLY_CAPACITY_LEVEL_LOW; + else if (di->cache.flags & BQ27500_FLAG_SOCF) + level = POWER_SUPPLY_CAPACITY_LEVEL_CRITICAL; + else + level = POWER_SUPPLY_CAPACITY_LEVEL_NORMAL; + } else { + if (di->cache.flags & BQ27000_FLAG_FC) + level = POWER_SUPPLY_CAPACITY_LEVEL_FULL; + else if (di->cache.flags & BQ27000_FLAG_EDV1) + level = POWER_SUPPLY_CAPACITY_LEVEL_LOW; + else if (di->cache.flags & BQ27000_FLAG_EDVF) + level = POWER_SUPPLY_CAPACITY_LEVEL_CRITICAL; + else + level = POWER_SUPPLY_CAPACITY_LEVEL_NORMAL; + } + + val->intval = level; + + return 0; +} + /* * Return the battery Voltage in milivolts * Or < 0 if something fails. @@ -464,6 +499,9 @@ static int bq27x00_battery_get_property(struct power_supply *psy, case POWER_SUPPLY_PROP_CAPACITY: ret = bq27x00_simple_value(di->cache.capacity, val); break; + case POWER_SUPPLY_PROP_CAPACITY_LEVEL: + ret = bq27x00_battery_capacity_level(di, val); + break; case POWER_SUPPLY_PROP_TEMP: ret = bq27x00_battery_temperature(di, val); break; |