static int vnt_tx_packet(struct vnt_private *priv, struct sk_buff *skb)
{
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
PSTxDesc head_td;
u32 dma_idx = TYPE_AC0DMA;
unsigned long flags;
spin_lock_irqsave(&priv->lock, flags);
if (!ieee80211_is_data(hdr->frame_control))
dma_idx = TYPE_TXDMA0;
if (AVAIL_TD(priv, dma_idx) < 1) {
spin_unlock_irqrestore(&priv->lock, flags);
return -ENOMEM;
}
head_td = priv->apCurrTD[dma_idx];
head_td->m_td1TD1.byTCR = 0;
head_td->pTDInfo->skb = skb;
priv->iTDUsed[dma_idx]++;
/* Take ownership */
wmb();
head_td->m_td0TD0.f1Owner = OWNED_BY_NIC;
/* get Next */
wmb();
priv->apCurrTD[dma_idx] = head_td->next;
spin_unlock_irqrestore(&priv->lock, flags);
vnt_generate_fifo_header(priv, dma_idx, head_td, skb);
if (MACbIsRegBitsOn(priv->PortOffset, MAC_REG_PSCTL, PSCTL_PS))
MACbPSWakeup(priv->PortOffset);
spin_lock_irqsave(&priv->lock, flags);
priv->bPWBitOn = false;
/* Set TSR1 & ReqCount in TxDescHead */
head_td->m_td1TD1.byTCR |= (TCR_STP | TCR_EDP | EDMSDU);
head_td->m_td1TD1.wReqCount =
cpu_to_le16((u16)head_td->pTDInfo->dwReqCount);
head_td->buff_addr = cpu_to_le32(head_td->pTDInfo->skb_dma);
if (dma_idx == TYPE_AC0DMA) {
head_td->pTDInfo->byFlags = TD_FLAGS_NETIF_SKB;
MACvTransmitAC0(priv->PortOffset);
} else {
MACvTransmit0(priv->PortOffset);
}
spin_unlock_irqrestore(&priv->lock, flags);
return 0;
}
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 int vnt_tx_packet(struct vnt_private *priv, struct sk_buff *skb)
{
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
struct vnt_tx_desc *head_td;
u32 dma_idx;
unsigned long flags;
spin_lock_irqsave(&priv->lock, flags);
if (ieee80211_is_data(hdr->frame_control))
dma_idx = TYPE_AC0DMA;
else
dma_idx = TYPE_TXDMA0;
if (AVAIL_TD(priv, dma_idx) < 1) {
spin_unlock_irqrestore(&priv->lock, flags);
ieee80211_stop_queues(priv->hw);
return -ENOMEM;
}
head_td = priv->apCurrTD[dma_idx];
head_td->td1.tcr = 0;
head_td->td_info->skb = skb;
if (dma_idx == TYPE_AC0DMA)
head_td->td_info->flags = TD_FLAGS_NETIF_SKB;
priv->apCurrTD[dma_idx] = head_td->next;
spin_unlock_irqrestore(&priv->lock, flags);
vnt_generate_fifo_header(priv, dma_idx, head_td, skb);
spin_lock_irqsave(&priv->lock, flags);
priv->bPWBitOn = false;
/* Set TSR1 & ReqCount in TxDescHead */
head_td->td1.tcr |= (TCR_STP | TCR_EDP | EDMSDU);
head_td->td1.req_count = cpu_to_le16(head_td->td_info->req_count);
head_td->buff_addr = cpu_to_le32(head_td->td_info->buf_dma);
/* Poll Transmit the adapter */
wmb();
head_td->td0.owner = OWNED_BY_NIC;
wmb(); /* second memory barrier */
if (head_td->td_info->flags & TD_FLAGS_NETIF_SKB)
MACvTransmitAC0(priv->PortOffset);
else
MACvTransmit0(priv->PortOffset);
priv->iTDUsed[dma_idx]++;
spin_unlock_irqrestore(&priv->lock, flags);
return 0;
}
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);
}
/*
* Description:
* Relay packet. Return TRUE if packet is copy to DMA1
*
* Parameters:
* In:
* pDevice -
* pbySkbData - rx packet skb data
* Out:
* TURE, FALSE
*
* Return Value: TRUE if packet duplicate; otherwise FALSE
*
*/
BOOL ROUTEbRelay (PSDevice pDevice, PBYTE pbySkbData, UINT uDataLen, UINT uNodeIndex)
{
PSMgmtObject pMgmt = pDevice->pMgmt;
PSTxDesc pHeadTD, pLastTD;
UINT cbFrameBodySize;
UINT uMACfragNum;
BYTE byPktType;
BOOL bNeedEncryption = FALSE;
SKeyItem STempKey;
PSKeyItem pTransmitKey = NULL;
UINT cbHeaderSize;
UINT ii;
PBYTE pbyBSSID;
if (AVAIL_TD(pDevice, TYPE_AC0DMA)<=0) {
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Relay can't allocate TD1..\n");
return FALSE;
}
pHeadTD = pDevice->apCurrTD[TYPE_AC0DMA];
pHeadTD->m_td1TD1.byTCR = (TCR_EDP|TCR_STP);
memcpy(pDevice->sTxEthHeader.abyDstAddr, (PBYTE)pbySkbData, U_HEADER_LEN);
cbFrameBodySize = uDataLen - U_HEADER_LEN;
if (ntohs(pDevice->sTxEthHeader.wType) > MAX_DATA_LEN) {
cbFrameBodySize += 8;
}
if (pDevice->bEncryptionEnable == TRUE) {
bNeedEncryption = TRUE;
// get group key
pbyBSSID = pDevice->abyBroadcastAddr;
if(KeybGetTransmitKey(&(pDevice->sKey), pbyBSSID, GROUP_KEY, &pTransmitKey) == FALSE) {
pTransmitKey = NULL;
DBG_PRT(MSG_LEVEL_DEBUG, KERN_DEBUG"KEY is NULL. [%d]\n", pDevice->pMgmt->eCurrMode);
} else {
DBG_PRT(MSG_LEVEL_DEBUG, KERN_DEBUG"Get GTK.\n");
}
}
if (pDevice->bEnableHostWEP) {
if (uNodeIndex >= 0) {
pTransmitKey = &STempKey;
pTransmitKey->byCipherSuite = pMgmt->sNodeDBTable[uNodeIndex].byCipherSuite;
pTransmitKey->dwKeyIndex = pMgmt->sNodeDBTable[uNodeIndex].dwKeyIndex;
pTransmitKey->uKeyLength = pMgmt->sNodeDBTable[uNodeIndex].uWepKeyLength;
pTransmitKey->dwTSC47_16 = pMgmt->sNodeDBTable[uNodeIndex].dwTSC47_16;
pTransmitKey->wTSC15_0 = pMgmt->sNodeDBTable[uNodeIndex].wTSC15_0;
memcpy(pTransmitKey->abyKey,
&pMgmt->sNodeDBTable[uNodeIndex].abyWepKey[0],
pTransmitKey->uKeyLength
);
}
}
uMACfragNum = cbGetFragCount(pDevice, pTransmitKey, cbFrameBodySize, &pDevice->sTxEthHeader);
if (uMACfragNum > AVAIL_TD(pDevice,TYPE_AC0DMA)) {
return FALSE;
}
byPktType = (BYTE)pDevice->byPacketType;
if (pDevice->bFixRate) {
if (pDevice->eCurrentPHYType == PHY_TYPE_11B) {
if (pDevice->uConnectionRate >= RATE_11M) {
pDevice->wCurrentRate = RATE_11M;
} else {
pDevice->wCurrentRate = (WORD)pDevice->uConnectionRate;
}
} else {
if ((pDevice->eCurrentPHYType == PHY_TYPE_11A) &&
(pDevice->uConnectionRate <= RATE_6M)) {
pDevice->wCurrentRate = RATE_6M;
} else {
if (pDevice->uConnectionRate >= RATE_54M)
pDevice->wCurrentRate = RATE_54M;
else
pDevice->wCurrentRate = (WORD)pDevice->uConnectionRate;
}
}
}
else {
pDevice->wCurrentRate = pDevice->pMgmt->sNodeDBTable[uNodeIndex].wTxDataRate;
}
if (pDevice->wCurrentRate <= RATE_11M)
byPktType = PK_TYPE_11B;
vGenerateFIFOHeader(pDevice, byPktType, pDevice->pbyTmpBuff, bNeedEncryption,
cbFrameBodySize, TYPE_AC0DMA, pHeadTD,
&pDevice->sTxEthHeader, pbySkbData, pTransmitKey, uNodeIndex,
&uMACfragNum,
&cbHeaderSize
);
if (MACbIsRegBitsOn(pDevice->PortOffset, MAC_REG_PSCTL, PSCTL_PS)) {
// Disable PS
MACbPSWakeup(pDevice->PortOffset);
}
pDevice->bPWBitOn = FALSE;
pLastTD = pHeadTD;
for (ii = 0; ii < uMACfragNum; ii++) {
// Poll Transmit the adapter
wmb();
pHeadTD->m_td0TD0.f1Owner=OWNED_BY_NIC;
wmb();
if (ii == (uMACfragNum - 1))
pLastTD = pHeadTD;
pHeadTD = pHeadTD->next;
}
pLastTD->pTDInfo->skb = 0;
pLastTD->pTDInfo->byFlags = 0;
pDevice->apCurrTD[TYPE_AC0DMA] = pHeadTD;
MACvTransmitAC0(pDevice->PortOffset);
return TRUE;
}