void ath9k_ps_restore(struct ath_softc *sc)
{
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
unsigned long flags;
spin_lock_irqsave(&sc->sc_pm_lock, flags);
if (--sc->ps_usecount != 0)
goto unlock;
spin_lock(&common->cc_lock);
ath_hw_cycle_counters_update(common);
spin_unlock(&common->cc_lock);
if (sc->ps_idle)
ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_FULL_SLEEP);
else if (sc->ps_enabled &&
!(sc->ps_flags & (PS_WAIT_FOR_BEACON |
PS_WAIT_FOR_CAB |
PS_WAIT_FOR_PSPOLL_DATA |
PS_WAIT_FOR_TX_ACK)))
ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_NETWORK_SLEEP);
unlock:
spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
}
void ath9k_htc_ps_restore(struct ath9k_htc_priv *priv)
{
mutex_lock(&priv->htc_pm_lock);
if (--priv->ps_usecount != 0)
goto unlock;
if (priv->ps_idle)
ath9k_hw_setpower(priv->ah, ATH9K_PM_FULL_SLEEP);
else if (priv->ps_enabled)
ath9k_hw_setpower(priv->ah, ATH9K_PM_NETWORK_SLEEP);
unlock:
mutex_unlock(&priv->htc_pm_lock);
}
void ath9k_ps_wakeup(struct ath_softc *sc)
{
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
unsigned long flags;
enum ath9k_power_mode power_mode;
spin_lock_irqsave(&sc->sc_pm_lock, flags);
if (++sc->ps_usecount != 1)
goto unlock;
power_mode = sc->sc_ah->power_mode;
ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_AWAKE);
/*
* While the hardware is asleep, the cycle counters contain no
* useful data. Better clear them now so that they don't mess up
* survey data results.
*/
if (power_mode != ATH9K_PM_AWAKE) {
spin_lock(&common->cc_lock);
ath_hw_cycle_counters_update(common);
memset(&common->cc_survey, 0, sizeof(common->cc_survey));
spin_unlock(&common->cc_lock);
}
unlock:
spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
}
void ath9k_htc_ps_restore(struct ath9k_htc_priv *priv)
{
bool reset;
mutex_lock(&priv->htc_pm_lock);
if (--priv->ps_usecount != 0)
goto unlock;
if (priv->ps_idle) {
ath9k_hw_setrxabort(priv->ah, true);
ath9k_hw_stopdmarecv(priv->ah, &reset);
ath9k_hw_setpower(priv->ah, ATH9K_PM_FULL_SLEEP);
} else if (priv->ps_enabled) {
ath9k_hw_setpower(priv->ah, ATH9K_PM_NETWORK_SLEEP);
}
unlock:
mutex_unlock(&priv->htc_pm_lock);
}
void ath9k_htc_ps_wakeup(struct ath9k_htc_priv *priv)
{
mutex_lock(&priv->htc_pm_lock);
if (++priv->ps_usecount != 1)
goto unlock;
ath9k_hw_setpower(priv->ah, ATH9K_PM_AWAKE);
unlock:
mutex_unlock(&priv->htc_pm_lock);
}
bool ath9k_htc_setpower(struct ath9k_htc_priv *priv,
enum ath9k_power_mode mode)
{
bool ret;
mutex_lock(&priv->htc_pm_lock);
ret = ath9k_hw_setpower(priv->ah, mode);
mutex_unlock(&priv->htc_pm_lock);
return ret;
}
static bool ath9k_setpower(struct ath_softc *sc, enum ath9k_power_mode mode)
{
unsigned long flags;
bool ret;
spin_lock_irqsave(&sc->sc_pm_lock, flags);
ret = ath9k_hw_setpower(sc->sc_ah, mode);
spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
return ret;
}
static int ath_pci_suspend(struct device *device)
{
struct pci_dev *pdev = to_pci_dev(device);
struct ieee80211_hw *hw = pci_get_drvdata(pdev);
struct ath_softc *sc = hw->priv;
/* The device has to be moved to FULLSLEEP forcibly.
* Otherwise the chip never moved to full sleep,
* when no interface is up.
*/
ath9k_hw_disable(sc->sc_ah);
ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_FULL_SLEEP);
return 0;
}
static int ath_pci_suspend(struct device *device)
{
struct pci_dev *pdev = to_pci_dev(device);
struct ieee80211_hw *hw = pci_get_drvdata(pdev);
struct ath_softc *sc = hw->priv;
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
if (test_bit(ATH_OP_WOW_ENABLED, &common->op_flags)) {
dev_info(&pdev->dev, "WOW is enabled, bypassing PCI suspend\n");
return 0;
}
/* The device has to be moved to FULLSLEEP forcibly.
* Otherwise the chip never moved to full sleep,
* when no interface is up.
*/
ath9k_stop_btcoex(sc);
ath9k_hw_disable(sc->sc_ah);
del_timer_sync(&sc->sleep_timer);
ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_FULL_SLEEP);
return 0;
}