Commit 64839170 authored by Luis R. Rodriguez's avatar Luis R. Rodriguez Committed by John W. Linville
Browse files

ath9k: disable radio when all devices are marked idle

This uses the new configuration changes indicated up by
mac80211 when all interfaces are marked idle. We need to do
a little more work as we have our own set of virtual
wiphys within ath9k.

Only when all virtual wiphys are inactive do we allow an idle
state change for a wiphy to trigger disabling the radio.
Signed-off-by: default avatarLuis R. Rodriguez <>
Signed-off-by: default avatarJohn W. Linville <>
parent 709ade9e
......@@ -691,6 +691,7 @@ void ath9k_wiphy_pause_all_forced(struct ath_softc *sc,
struct ath_wiphy *selected);
bool ath9k_wiphy_scanning(struct ath_softc *sc);
void ath9k_wiphy_work(struct work_struct *work);
bool ath9k_all_wiphys_idle(struct ath_softc *sc);
void ath9k_iowrite32(struct ath_hw *ah, u32 reg_offset, u32 val);
unsigned int ath9k_ioread32(struct ath_hw *ah, u32 reg_offset);
......@@ -2260,9 +2260,28 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed)
struct ath_softc *sc = aphy->sc;
struct ieee80211_conf *conf = &hw->conf;
struct ath_hw *ah = sc->sc_ah;
bool all_wiphys_idle = false, disable_radio = false;
/* Leave this as the first check */
if (changed & IEEE80211_CONF_CHANGE_IDLE) {
all_wiphys_idle = ath9k_all_wiphys_idle(sc);
if (conf->flags & IEEE80211_CONF_IDLE){
if (all_wiphys_idle)
disable_radio = true;
else if (all_wiphys_idle) {
"not-idle: enabling radio\n");
if (changed & IEEE80211_CONF_CHANGE_PS) {
if (conf->flags & IEEE80211_CONF_PS) {
if (!(ah->caps.hw_caps &
......@@ -2330,6 +2349,11 @@ skip_chan_change:
if (changed & IEEE80211_CONF_CHANGE_POWER)
sc->config.txpowlimit = 2 * conf->power_level;
if (disable_radio) {
DPRINTF(sc, ATH_DBG_CONFIG, "idle: disabling radio\n");
return 0;
......@@ -660,3 +660,20 @@ void ath9k_wiphy_set_scheduler(struct ath_softc *sc, unsigned int msec_int)
queue_delayed_work(sc->hw->workqueue, &sc->wiphy_work,
/* caller must hold wiphy_lock */
bool ath9k_all_wiphys_idle(struct ath_softc *sc)
unsigned int i;
if (sc->pri_wiphy->state != ATH_WIPHY_INACTIVE) {
return false;
for (i = 0; i < sc->num_sec_wiphy; i++) {
struct ath_wiphy *aphy = sc->sec_wiphy[i];
if (!aphy)
if (aphy->state != ATH_WIPHY_INACTIVE)
return false;
return true;
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