From 1ca5b9d2183f11bb8b69e04b19a7faf7f600a840 Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Sun, 4 May 2008 01:31:42 -0400 Subject: power_supply: Support serial number in olpc_battery This adds serial number support to the OLPC battery driver. Signed-off-by: David Woodhouse Signed-off-by: Andres Salomon Signed-off-by: Anton Vorontsov --- drivers/power/olpc_battery.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'drivers/power') diff --git a/drivers/power/olpc_battery.c b/drivers/power/olpc_battery.c index ab1e8289f07..7524a63a54c 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, }; /********************************************************************* -- cgit v1.2.3