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power_supply: Support serial number in olpc_battery 

This adds serial number support to the OLPC battery driver.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Andres Salomon <dilinger@debian.org>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
This commit is contained in:
David Woodhouse 2008-05-04 01:31:42 -04:00 committed by Anton Vorontsov
parent afa26be86b
commit 1ca5b9d218
1 changed files with 12 additions and 0 deletions
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12
drivers/power/olpc_battery.c
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@ -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 +244,14 @@ 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_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;
@ -260,6 +271,7 @@ static enum power_supply_property olpc_bat_props[] = {
POWER_SUPPLY_PROP_TEMP,
POWER_SUPPLY_PROP_TEMP_AMBIENT,
POWER_SUPPLY_PROP_MANUFACTURER,
POWER_SUPPLY_PROP_SERIAL_NUMBER,
};
/*********************************************************************