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 device_init_registers(struct vnt_private *pDevice)
{
unsigned long flags;
unsigned int ii;
unsigned char byValue;
unsigned char byCCKPwrdBm = 0;
unsigned char byOFDMPwrdBm = 0;
MACbShutdown(pDevice->PortOffset);
BBvSoftwareReset(pDevice);
/* Do MACbSoftwareReset in MACvInitialize */
MACbSoftwareReset(pDevice->PortOffset);
pDevice->bAES = false;
/* Only used in 11g type, sync with ERP IE */
pDevice->bProtectMode = false;
pDevice->bNonERPPresent = false;
pDevice->bBarkerPreambleMd = false;
pDevice->wCurrentRate = RATE_1M;
pDevice->byTopOFDMBasicRate = RATE_24M;
pDevice->byTopCCKBasicRate = RATE_1M;
/* Target to IF pin while programming to RF chip. */
pDevice->byRevId = 0;
/* init MAC */
MACvInitialize(pDevice->PortOffset);
/* Get Local ID */
VNSvInPortB(pDevice->PortOffset + MAC_REG_LOCALID, &pDevice->byLocalID);
spin_lock_irqsave(&pDevice->lock, flags);
SROMvReadAllContents(pDevice->PortOffset, pDevice->abyEEPROM);
spin_unlock_irqrestore(&pDevice->lock, flags);
/* Get Channel range */
pDevice->byMinChannel = 1;
pDevice->byMaxChannel = CB_MAX_CHANNEL;
/* Get Antena */
byValue = SROMbyReadEmbedded(pDevice->PortOffset, EEP_OFS_ANTENNA);
if (byValue & EEP_ANTINV)
pDevice->bTxRxAntInv = true;
else
pDevice->bTxRxAntInv = false;
byValue &= (EEP_ANTENNA_AUX | EEP_ANTENNA_MAIN);
/* if not set default is All */
if (byValue == 0)
byValue = (EEP_ANTENNA_AUX | EEP_ANTENNA_MAIN);
if (byValue == (EEP_ANTENNA_AUX | EEP_ANTENNA_MAIN)) {
pDevice->byAntennaCount = 2;
pDevice->byTxAntennaMode = ANT_B;
pDevice->dwTxAntennaSel = 1;
pDevice->dwRxAntennaSel = 1;
if (pDevice->bTxRxAntInv)
pDevice->byRxAntennaMode = ANT_A;
else
pDevice->byRxAntennaMode = ANT_B;
} else {
pDevice->byAntennaCount = 1;
pDevice->dwTxAntennaSel = 0;
pDevice->dwRxAntennaSel = 0;
if (byValue & EEP_ANTENNA_AUX) {
pDevice->byTxAntennaMode = ANT_A;
if (pDevice->bTxRxAntInv)
pDevice->byRxAntennaMode = ANT_B;
else
pDevice->byRxAntennaMode = ANT_A;
} else {
pDevice->byTxAntennaMode = ANT_B;
if (pDevice->bTxRxAntInv)
pDevice->byRxAntennaMode = ANT_A;
else
pDevice->byRxAntennaMode = ANT_B;
}
}
/* Set initial antenna mode */
BBvSetTxAntennaMode(pDevice, pDevice->byTxAntennaMode);
BBvSetRxAntennaMode(pDevice, pDevice->byRxAntennaMode);
/* zonetype initial */
pDevice->byOriginalZonetype = pDevice->abyEEPROM[EEP_OFS_ZONETYPE];
/* Get RFType */
pDevice->byRFType = SROMbyReadEmbedded(pDevice->PortOffset, EEP_OFS_RFTYPE);
/* force change RevID for VT3253 emu */
if ((pDevice->byRFType & RF_EMU) != 0)
pDevice->byRevId = 0x80;
pDevice->byRFType &= RF_MASK;
pr_debug("pDevice->byRFType = %x\n", pDevice->byRFType);
if (!pDevice->bZoneRegExist)
pDevice->byZoneType = pDevice->abyEEPROM[EEP_OFS_ZONETYPE];
pr_debug("pDevice->byZoneType = %x\n", pDevice->byZoneType);
/* Init RF module */
RFbInit(pDevice);
/* Get Desire Power Value */
pDevice->byCurPwr = 0xFF;
pDevice->byCCKPwr = SROMbyReadEmbedded(pDevice->PortOffset, EEP_OFS_PWR_CCK);
pDevice->byOFDMPwrG = SROMbyReadEmbedded(pDevice->PortOffset, EEP_OFS_PWR_OFDMG);
/* Load power Table */
for (ii = 0; ii < CB_MAX_CHANNEL_24G; ii++) {
pDevice->abyCCKPwrTbl[ii + 1] =
SROMbyReadEmbedded(pDevice->PortOffset,
(unsigned char)(ii + EEP_OFS_CCK_PWR_TBL));
if (pDevice->abyCCKPwrTbl[ii + 1] == 0)
pDevice->abyCCKPwrTbl[ii+1] = pDevice->byCCKPwr;
pDevice->abyOFDMPwrTbl[ii + 1] =
SROMbyReadEmbedded(pDevice->PortOffset,
(unsigned char)(ii + EEP_OFS_OFDM_PWR_TBL));
if (pDevice->abyOFDMPwrTbl[ii + 1] == 0)
pDevice->abyOFDMPwrTbl[ii + 1] = pDevice->byOFDMPwrG;
pDevice->abyCCKDefaultPwr[ii + 1] = byCCKPwrdBm;
pDevice->abyOFDMDefaultPwr[ii + 1] = byOFDMPwrdBm;
}
/* recover 12,13 ,14channel for EUROPE by 11 channel */
for (ii = 11; ii < 14; ii++) {
pDevice->abyCCKPwrTbl[ii] = pDevice->abyCCKPwrTbl[10];
pDevice->abyOFDMPwrTbl[ii] = pDevice->abyOFDMPwrTbl[10];
}
/* Load OFDM A Power Table */
for (ii = 0; ii < CB_MAX_CHANNEL_5G; ii++) {
pDevice->abyOFDMPwrTbl[ii + CB_MAX_CHANNEL_24G + 1] =
SROMbyReadEmbedded(pDevice->PortOffset,
(unsigned char)(ii + EEP_OFS_OFDMA_PWR_TBL));
pDevice->abyOFDMDefaultPwr[ii + CB_MAX_CHANNEL_24G + 1] =
SROMbyReadEmbedded(pDevice->PortOffset,
(unsigned char)(ii + EEP_OFS_OFDMA_PWR_dBm));
}
if (pDevice->byLocalID > REV_ID_VT3253_B1) {
MACvSelectPage1(pDevice->PortOffset);
VNSvOutPortB(pDevice->PortOffset + MAC_REG_MSRCTL + 1,
(MSRCTL1_TXPWR | MSRCTL1_CSAPAREN));
MACvSelectPage0(pDevice->PortOffset);
}
/* use relative tx timeout and 802.11i D4 */
MACvWordRegBitsOn(pDevice->PortOffset,
MAC_REG_CFG, (CFG_TKIPOPT | CFG_NOTXTIMEOUT));
/* set performance parameter by registry */
MACvSetShortRetryLimit(pDevice->PortOffset, pDevice->byShortRetryLimit);
MACvSetLongRetryLimit(pDevice->PortOffset, pDevice->byLongRetryLimit);
/* reset TSF counter */
VNSvOutPortB(pDevice->PortOffset + MAC_REG_TFTCTL, TFTCTL_TSFCNTRST);
/* enable TSF counter */
VNSvOutPortB(pDevice->PortOffset + MAC_REG_TFTCTL, TFTCTL_TSFCNTREN);
/* initialize BBP registers */
BBbVT3253Init(pDevice);
if (pDevice->bUpdateBBVGA) {
pDevice->byBBVGACurrent = pDevice->abyBBVGA[0];
pDevice->byBBVGANew = pDevice->byBBVGACurrent;
BBvSetVGAGainOffset(pDevice, pDevice->abyBBVGA[0]);
}
BBvSetRxAntennaMode(pDevice, pDevice->byRxAntennaMode);
BBvSetTxAntennaMode(pDevice, pDevice->byTxAntennaMode);
/* Set BB and packet type at the same time. */
/* Set Short Slot Time, xIFS, and RSPINF. */
pDevice->wCurrentRate = RATE_54M;
pDevice->bRadioOff = false;
pDevice->byRadioCtl = SROMbyReadEmbedded(pDevice->PortOffset,
EEP_OFS_RADIOCTL);
pDevice->bHWRadioOff = false;
if (pDevice->byRadioCtl & EEP_RADIOCTL_ENABLE) {
/* Get GPIO */
MACvGPIOIn(pDevice->PortOffset, &pDevice->byGPIO);
if (((pDevice->byGPIO & GPIO0_DATA) &&
!(pDevice->byRadioCtl & EEP_RADIOCTL_INV)) ||
(!(pDevice->byGPIO & GPIO0_DATA) &&
(pDevice->byRadioCtl & EEP_RADIOCTL_INV)))
pDevice->bHWRadioOff = true;
}
if (pDevice->bHWRadioOff || pDevice->bRadioControlOff)
CARDbRadioPowerOff(pDevice);
/* get Permanent network address */
SROMvReadEtherAddress(pDevice->PortOffset, pDevice->abyCurrentNetAddr);
pr_debug("Network address = %pM\n", pDevice->abyCurrentNetAddr);
/* reset Tx pointer */
CARDvSafeResetRx(pDevice);
/* reset Rx pointer */
CARDvSafeResetTx(pDevice);
if (pDevice->byLocalID <= REV_ID_VT3253_A1)
MACvRegBitsOn(pDevice->PortOffset, MAC_REG_RCR, RCR_WPAERR);
/* Turn On Rx DMA */
MACvReceive0(pDevice->PortOffset);
MACvReceive1(pDevice->PortOffset);
/* start the adapter */
MACvStart(pDevice->PortOffset);
}
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);
}
