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Commit 1ca5b9d2 authored by David Woodhouse's avatar David Woodhouse Committed by Anton Vorontsov
Browse files

power_supply: Support serial number in olpc_battery 



This adds serial number support to the OLPC battery driver.

Signed-off-by: default avatarDavid Woodhouse <dwmw2@infradead.org>
Signed-off-by: default avatarAndres Salomon <dilinger@debian.org>
Signed-off-by: default avatarAnton Vorontsov <cbouatmailru@gmail.com>
parent afa26be8

drivers/power/olpc_battery.c

+12 −0
Original line number Diff line number Diff line
@@ -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,

};



/*********************************************************************