C++ (Cpp) ath9k_hw_setrxabort Examples

Example #1

File: htc_drv_main.c Project: asebak/backports-3.18.1-1

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);
}

Example #2

irqreturn_t ath_isr(int irq, void *dev)
{
#define SCHED_INTR (				\
		ATH9K_INT_FATAL |		\
		ATH9K_INT_BB_WATCHDOG |		\
		ATH9K_INT_RXORN |		\
		ATH9K_INT_RXEOL |		\
		ATH9K_INT_RX |			\
		ATH9K_INT_RXLP |		\
		ATH9K_INT_RXHP |		\
		ATH9K_INT_TX |			\
		ATH9K_INT_BMISS |		\
		ATH9K_INT_CST |			\
		ATH9K_INT_TSFOOR |		\
		ATH9K_INT_GENTIMER)

	struct ath_softc *sc = dev;
	struct ath_hw *ah = sc->sc_ah;
	struct ath_common *common = ath9k_hw_common(ah);
	enum ath9k_int status;
	bool sched = false;

	/*
	 * The hardware is not ready/present, don't
	 * touch anything. Note this can happen early
	 * on if the IRQ is shared.
	 */
	if (sc->sc_flags & SC_OP_INVALID)
		return IRQ_NONE;


	/* shared irq, not for us */

	if (!ath9k_hw_intrpend(ah))
		return IRQ_NONE;

	/*
	 * Figure out the reason(s) for the interrupt.  Note
	 * that the hal returns a pseudo-ISR that may include
	 * bits we haven't explicitly enabled so we mask the
	 * value to insure we only process bits we requested.
	 */
	ath9k_hw_getisr(ah, &status);	/* NB: clears ISR too */
	status &= ah->imask;	/* discard unasked-for bits */

	/*
	 * If there are no status bits set, then this interrupt was not
	 * for me (should have been caught above).
	 */
	if (!status)
		return IRQ_NONE;

	/* Cache the status */
	sc->intrstatus = status;

	if (status & SCHED_INTR)
		sched = true;

	/*
	 * If a FATAL or RXORN interrupt is received, we have to reset the
	 * chip immediately.
	 */
	if ((status & ATH9K_INT_FATAL) || ((status & ATH9K_INT_RXORN) &&
	    !(ah->caps.hw_caps & ATH9K_HW_CAP_EDMA)))
		goto chip_reset;

	if ((ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) &&
	    (status & ATH9K_INT_BB_WATCHDOG)) {

		spin_lock(&common->cc_lock);
		ath_hw_cycle_counters_update(common);
		ar9003_hw_bb_watchdog_dbg_info(ah);
		spin_unlock(&common->cc_lock);

		goto chip_reset;
	}

	if (status & ATH9K_INT_SWBA)
		tasklet_schedule(&sc->bcon_tasklet);

	if (status & ATH9K_INT_TXURN)
		ath9k_hw_updatetxtriglevel(ah, true);

	if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) {
		if (status & ATH9K_INT_RXEOL) {
			ah->imask &= ~(ATH9K_INT_RXEOL | ATH9K_INT_RXORN);
			ath9k_hw_set_interrupts(ah, ah->imask);
		}
	}

	if (status & ATH9K_INT_MIB) {
		/*
		 * Disable interrupts until we service the MIB
		 * interrupt; otherwise it will continue to
		 * fire.
		 */
		ath9k_hw_disable_interrupts(ah);
		/*
		 * Let the hal handle the event. We assume
		 * it will clear whatever condition caused
		 * the interrupt.
		 */
		spin_lock(&common->cc_lock);
		ath9k_hw_proc_mib_event(ah);
		spin_unlock(&common->cc_lock);
		ath9k_hw_enable_interrupts(ah);
	}

	if (!(ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP))
		if (status & ATH9K_INT_TIM_TIMER) {
			if (ATH_DBG_WARN_ON_ONCE(sc->ps_idle))
				goto chip_reset;
			/* Clear RxAbort bit so that we can
			 * receive frames */
			ath9k_setpower(sc, ATH9K_PM_AWAKE);
			ath9k_hw_setrxabort(sc->sc_ah, 0);
			sc->ps_flags |= PS_WAIT_FOR_BEACON;
		}

chip_reset:

	ath_debug_stat_interrupt(sc, status);

	if (sched) {
		/* turn off every interrupt */
		ath9k_hw_disable_interrupts(ah);
		tasklet_schedule(&sc->intr_tq);
	}

	return IRQ_HANDLED;

#undef SCHED_INTR
}