Messages in this thread Patch in this message | | | Date | Wed, 30 Apr 2008 16:30:02 -0400 | From | Andres Salomon <> | Subject | [PATCH 1/4] power_supply: Support serial number and ACR in olpc_battery |
| |
From: David Woodhouse <dwmw2@infradead.org>
This adds serial number and accumulated current support to the OLPC battery driver.
Signed-off-by: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Andres Salomon <dilinger@debian.org> --- drivers/power/olpc_battery.c | 23 ++++++++++++++++++++++- drivers/power/power_supply_sysfs.c | 1 + include/linux/power_supply.h | 1 + 3 files changed, 24 insertions(+), 1 deletions(-)
diff --git a/drivers/power/olpc_battery.c b/drivers/power/olpc_battery.c index ab1e828..9d9dd09 100644 --- a/drivers/power/olpc_battery.c +++ b/drivers/power/olpc_battery.c @@ -19,7 +19,7 @@ #define EC_BAT_VOLTAGE 0x10 /* uint16_t, *9.76/32, mV */ #define EC_BAT_CURRENT 0x11 /* int16_t, *15.625/120, mA */ -#define EC_BAT_ACR 0x12 +#define EC_BAT_ACR 0x12 /* int16_t, *416.667, µAh */ #define EC_BAT_TEMP 0x13 /* uint16_t, *100/256, °C */ #define EC_AMB_TEMP 0x14 /* uint16_t, *100/256, °C */ #define EC_BAT_STATUS 0x15 /* uint8_t, bitmask */ @@ -84,6 +84,8 @@ static struct power_supply olpc_ac = { .get_property = olpc_ac_get_prop, }; +static char bat_serial[17]; /* Ick */ + /********************************************************************* * Battery properties *********************************************************************/ @@ -94,6 +96,7 @@ static int olpc_bat_get_property(struct power_supply *psy, int ret = 0; int16_t ec_word; uint8_t ec_byte; + uint64_t ser_buf; ret = olpc_ec_cmd(EC_BAT_STATUS, NULL, 0, &ec_byte, 1); if (ret) @@ -241,6 +244,22 @@ static int olpc_bat_get_property(struct power_supply *psy, ec_word = be16_to_cpu(ec_word); val->intval = ec_word * 100 / 256; break; + case POWER_SUPPLY_PROP_ACCUM_CURRENT: + ret = olpc_ec_cmd(EC_BAT_ACR, NULL, 0, (void *)&ec_word, 2); + if (ret) + return ret; + + ec_word = be16_to_cpu(ec_word); + val->intval = ec_word; + break; + case POWER_SUPPLY_PROP_SERIAL_NUMBER: + ret = olpc_ec_cmd(EC_BAT_SERIAL, NULL, 0, (void *)&ser_buf, 8); + if (ret) + return ret; + + sprintf(bat_serial, "%016llx", (long long)be64_to_cpu(ser_buf)); + val->strval = bat_serial; + break; default: ret = -EINVAL; break; @@ -259,7 +278,9 @@ static enum power_supply_property olpc_bat_props[] = { POWER_SUPPLY_PROP_CAPACITY, POWER_SUPPLY_PROP_TEMP, POWER_SUPPLY_PROP_TEMP_AMBIENT, + POWER_SUPPLY_PROP_ACCUM_CURRENT, POWER_SUPPLY_PROP_MANUFACTURER, + POWER_SUPPLY_PROP_SERIAL_NUMBER, }; /********************************************************************* diff --git a/drivers/power/power_supply_sysfs.c b/drivers/power/power_supply_sysfs.c index c444d6b..756d4e1 100644 --- a/drivers/power/power_supply_sysfs.c +++ b/drivers/power/power_supply_sysfs.c @@ -112,6 +112,7 @@ static struct device_attribute power_supply_attrs[] = { POWER_SUPPLY_ATTR(time_to_empty_avg), POWER_SUPPLY_ATTR(time_to_full_now), POWER_SUPPLY_ATTR(time_to_full_avg), + POWER_SUPPLY_ATTR(accum_current), /* Properties of type `const char *' */ POWER_SUPPLY_ATTR(model_name), POWER_SUPPLY_ATTR(manufacturer), diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h index 68ed19c..a699ad2 100644 --- a/include/linux/power_supply.h +++ b/include/linux/power_supply.h @@ -91,6 +91,7 @@ enum power_supply_property { POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG, POWER_SUPPLY_PROP_TIME_TO_FULL_NOW, POWER_SUPPLY_PROP_TIME_TO_FULL_AVG, + POWER_SUPPLY_PROP_ACCUM_CURRENT, /* Properties of type `const char *' */ POWER_SUPPLY_PROP_MODEL_NAME, POWER_SUPPLY_PROP_MANUFACTURER, -- 1.5.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |