static irqreturn_t device_intr(int irq, void *dev_instance) { struct vnt_private *pDevice = dev_instance; int max_count = 0; unsigned long dwMIBCounter = 0; unsigned char byOrgPageSel = 0; int handled = 0; unsigned long flags; MACvReadISR(pDevice->PortOffset, &pDevice->dwIsr); if (pDevice->dwIsr == 0) return IRQ_RETVAL(handled); if (pDevice->dwIsr == 0xffffffff) { pr_debug("dwIsr = 0xffff\n"); return IRQ_RETVAL(handled); } handled = 1; MACvIntDisable(pDevice->PortOffset); spin_lock_irqsave(&pDevice->lock, flags); //Make sure current page is 0 VNSvInPortB(pDevice->PortOffset + MAC_REG_PAGE1SEL, &byOrgPageSel); if (byOrgPageSel == 1) MACvSelectPage0(pDevice->PortOffset); else byOrgPageSel = 0; MACvReadMIBCounter(pDevice->PortOffset, &dwMIBCounter); // TBD.... // Must do this after doing rx/tx, cause ISR bit is slow // than RD/TD write back // update ISR counter STAvUpdate802_11Counter(&pDevice->s802_11Counter, &pDevice->scStatistic, dwMIBCounter); while (pDevice->dwIsr != 0) { STAvUpdateIsrStatCounter(&pDevice->scStatistic, pDevice->dwIsr); MACvWriteISR(pDevice->PortOffset, pDevice->dwIsr); if (pDevice->dwIsr & ISR_FETALERR) { pr_debug(" ISR_FETALERR\n"); VNSvOutPortB(pDevice->PortOffset + MAC_REG_SOFTPWRCTL, 0); VNSvOutPortW(pDevice->PortOffset + MAC_REG_SOFTPWRCTL, SOFTPWRCTL_SWPECTI); device_error(pDevice, pDevice->dwIsr); } if (pDevice->dwIsr & ISR_TBTT) { if (pDevice->vif && pDevice->op_mode != NL80211_IFTYPE_ADHOC) vnt_check_bb_vga(pDevice); pDevice->bBeaconSent = false; if (pDevice->bEnablePSMode) PSbIsNextTBTTWakeUp((void *)pDevice); if ((pDevice->op_mode == NL80211_IFTYPE_AP || pDevice->op_mode == NL80211_IFTYPE_ADHOC) && pDevice->vif->bss_conf.enable_beacon) { MACvOneShotTimer1MicroSec(pDevice->PortOffset, (pDevice->vif->bss_conf.beacon_int - MAKE_BEACON_RESERVED) << 10); } /* TODO: adhoc PS mode */ } if (pDevice->dwIsr & ISR_BNTX) { if (pDevice->op_mode == NL80211_IFTYPE_ADHOC) { pDevice->bIsBeaconBufReadySet = false; pDevice->cbBeaconBufReadySetCnt = 0; } pDevice->bBeaconSent = true; } if (pDevice->dwIsr & ISR_RXDMA0) max_count += device_rx_srv(pDevice, TYPE_RXDMA0); if (pDevice->dwIsr & ISR_RXDMA1) max_count += device_rx_srv(pDevice, TYPE_RXDMA1); if (pDevice->dwIsr & ISR_TXDMA0) max_count += device_tx_srv(pDevice, TYPE_TXDMA0); if (pDevice->dwIsr & ISR_AC0DMA) max_count += device_tx_srv(pDevice, TYPE_AC0DMA); if (pDevice->dwIsr & ISR_SOFTTIMER1) { if (pDevice->vif) { if (pDevice->vif->bss_conf.enable_beacon) vnt_beacon_make(pDevice, pDevice->vif); } } /* If both buffers available wake the queue */ if (pDevice->vif) { if (AVAIL_TD(pDevice, TYPE_TXDMA0) && AVAIL_TD(pDevice, TYPE_AC0DMA) && ieee80211_queue_stopped(pDevice->hw, 0)) ieee80211_wake_queues(pDevice->hw); } MACvReadISR(pDevice->PortOffset, &pDevice->dwIsr); MACvReceive0(pDevice->PortOffset); MACvReceive1(pDevice->PortOffset); if (max_count > pDevice->sOpts.int_works) break; } if (byOrgPageSel == 1) MACvSelectPage1(pDevice->PortOffset); spin_unlock_irqrestore(&pDevice->lock, flags); MACvIntEnable(pDevice->PortOffset, IMR_MASK_VALUE); return IRQ_RETVAL(handled); }
static void vnt_interrupt_process(struct vnt_private *priv) { struct ieee80211_low_level_stats *low_stats = &priv->low_stats; int max_count = 0; u32 mib_counter; u32 isr; unsigned long flags; MACvReadISR(priv->PortOffset, &isr); if (isr == 0) return; if (isr == 0xffffffff) { pr_debug("isr = 0xffff\n"); return; } MACvIntDisable(priv->PortOffset); spin_lock_irqsave(&priv->lock, flags); /* Read low level stats */ MACvReadMIBCounter(priv->PortOffset, &mib_counter); low_stats->dot11RTSSuccessCount += mib_counter & 0xff; low_stats->dot11RTSFailureCount += (mib_counter >> 8) & 0xff; low_stats->dot11ACKFailureCount += (mib_counter >> 16) & 0xff; low_stats->dot11FCSErrorCount += (mib_counter >> 24) & 0xff; /* * TBD.... * Must do this after doing rx/tx, cause ISR bit is slow * than RD/TD write back * update ISR counter */ while (isr && priv->vif) { MACvWriteISR(priv->PortOffset, isr); if (isr & ISR_FETALERR) { pr_debug(" ISR_FETALERR\n"); VNSvOutPortB(priv->PortOffset + MAC_REG_SOFTPWRCTL, 0); VNSvOutPortW(priv->PortOffset + MAC_REG_SOFTPWRCTL, SOFTPWRCTL_SWPECTI); device_error(priv, isr); } if (isr & ISR_TBTT) { if (priv->op_mode != NL80211_IFTYPE_ADHOC) vnt_check_bb_vga(priv); priv->bBeaconSent = false; if (priv->bEnablePSMode) PSbIsNextTBTTWakeUp((void *)priv); if ((priv->op_mode == NL80211_IFTYPE_AP || priv->op_mode == NL80211_IFTYPE_ADHOC) && priv->vif->bss_conf.enable_beacon) { MACvOneShotTimer1MicroSec(priv->PortOffset, (priv->vif->bss_conf.beacon_int - MAKE_BEACON_RESERVED) << 10); } /* TODO: adhoc PS mode */ } if (isr & ISR_BNTX) { if (priv->op_mode == NL80211_IFTYPE_ADHOC) { priv->bIsBeaconBufReadySet = false; priv->cbBeaconBufReadySetCnt = 0; } priv->bBeaconSent = true; } if (isr & ISR_RXDMA0) max_count += device_rx_srv(priv, TYPE_RXDMA0); if (isr & ISR_RXDMA1) max_count += device_rx_srv(priv, TYPE_RXDMA1); if (isr & ISR_TXDMA0) max_count += device_tx_srv(priv, TYPE_TXDMA0); if (isr & ISR_AC0DMA) max_count += device_tx_srv(priv, TYPE_AC0DMA); if (isr & ISR_SOFTTIMER1) { if (priv->vif->bss_conf.enable_beacon) vnt_beacon_make(priv, priv->vif); } /* If both buffers available wake the queue */ if (AVAIL_TD(priv, TYPE_TXDMA0) && AVAIL_TD(priv, TYPE_AC0DMA) && ieee80211_queue_stopped(priv->hw, 0)) ieee80211_wake_queues(priv->hw); MACvReadISR(priv->PortOffset, &isr); MACvReceive0(priv->PortOffset); MACvReceive1(priv->PortOffset); if (max_count > priv->sOpts.int_works) break; } spin_unlock_irqrestore(&priv->lock, flags); MACvIntEnable(priv->PortOffset, IMR_MASK_VALUE); }