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authorDavid Woodhouse <dwmw2@infradead.org>2008-05-04 01:31:42 -0400
committerAnton Vorontsov <cbouatmailru@gmail.com>2008-05-04 13:12:33 +0400
commit1ca5b9d2183f11bb8b69e04b19a7faf7f600a840 (patch)
treeb7a48df7fc0b52217cd82b05ff8c21037333d6e7 /drivers/power
parentafa26be86b65a7183ceac29bdf1f51d6fc6932f0 (diff)
downloadlinux-1ca5b9d2183f11bb8b69e04b19a7faf7f600a840.tar.bz2
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>
Diffstat (limited to 'drivers/power')
-rw-r--r--drivers/power/olpc_battery.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/power/olpc_battery.c b/drivers/power/olpc_battery.c
index ab1e8289f07f..7524a63a54cb 100644
--- a/drivers/power/olpc_battery.c
+++ b/drivers/power/olpc_battery.c
@@ -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,
};
/*********************************************************************