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authorOtto Moerbeek <otto@cvs.openbsd.org>2010-02-24 18:29:40 +0000
committerOtto Moerbeek <otto@cvs.openbsd.org>2010-02-24 18:29:40 +0000
commite2bc9ebb99cfaf1f82874d76ab72a939ddaaedcb (patch)
treea45e8d95c35688865daeaa2749151e7073d50290
parente7c4958d0b57a5e94a00cf3b361e82e078453bfe (diff)
fix scaling of battery current
-rw-r--r--sys/arch/loongson/dev/kb3310.c13
1 files changed, 7 insertions, 6 deletions
diff --git a/sys/arch/loongson/dev/kb3310.c b/sys/arch/loongson/dev/kb3310.c
index e445bda5ba0..600a5c24cac 100644
--- a/sys/arch/loongson/dev/kb3310.c
+++ b/sys/arch/loongson/dev/kb3310.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: kb3310.c,v 1.3 2010/02/24 17:38:39 deraadt Exp $ */
+/* $OpenBSD: kb3310.c,v 1.4 2010/02/24 18:29:39 otto Exp $ */
/*
* Copyright (c) 2010 Otto Moerbeek <otto@drijf.net>
*
@@ -249,7 +249,7 @@ ykbec_refresh(void *arg)
u_int val, bat_charge, bat_status, charge_status, bat_state, power_flag;
int current;
- val = ykbec_read16(sc, REG_FAN_SPEED_HIGH);
+ val = ykbec_read16(sc, REG_FAN_SPEED_HIGH) & 0xfffff;
if (val != 0)
val = KB3310_FAN_SPEED_DIVIDER / val;
else
@@ -262,11 +262,12 @@ ykbec_refresh(void *arg)
sc->sc_sensor[2].value = ykbec_read16(sc, REG_DESIGN_CAP_HIGH) * 1000;
sc->sc_sensor[3].value = ykbec_read16(sc, REG_FULLCHG_CAP_HIGH) * 1000;
sc->sc_sensor[4].value = ykbec_read16(sc, REG_DESIGN_VOL_HIGH) * 1000;
+
current = ykbec_read16(sc, REG_CURRENT_HIGH);
- if (current & 0x8000)
- sc->sc_sensor[5].value = (0xffff - current) * 1000;
- else
- sc->sc_sensor[5].value = current * 1000;
+ /* sign extend short -> int, int -> int64 will be done next statement */
+ current |= -(current & 0x8000);
+ sc->sc_sensor[5].value = current * -1000;
+
sc->sc_sensor[6].value = ykbec_read16(sc, REG_VOLTAGE_HIGH) * 1000;
val = ykbec_read16(sc, REG_TEMPERATURE_HIGH);