/*
* Description:
* Restore MAC registers from context buffer
*
* Parameters:
* In:
* dwIoBase - Base Address for MAC
* pbyCxtBuf - Context buffer
* Out:
* none
*
* Return Value: none
*
*/
void MACvRestoreContext(void __iomem *dwIoBase, unsigned char *pbyCxtBuf)
{
int ii;
MACvSelectPage1(dwIoBase);
// restore page1
for (ii = 0; ii < MAC_MAX_CONTEXT_SIZE_PAGE1; ii++)
VNSvOutPortB((dwIoBase + ii), *(pbyCxtBuf + MAC_MAX_CONTEXT_SIZE_PAGE0 + ii));
MACvSelectPage0(dwIoBase);
// restore RCR,TCR,IMR...
for (ii = MAC_REG_RCR; ii < MAC_REG_ISR; ii++)
VNSvOutPortB(dwIoBase + ii, *(pbyCxtBuf + ii));
// restore MAC Config.
for (ii = MAC_REG_LRT; ii < MAC_REG_PAGE1SEL; ii++)
VNSvOutPortB(dwIoBase + ii, *(pbyCxtBuf + ii));
VNSvOutPortB(dwIoBase + MAC_REG_CFG, *(pbyCxtBuf + MAC_REG_CFG));
// restore PS Config.
for (ii = MAC_REG_PSCFG; ii < MAC_REG_BBREGCTL; ii++)
VNSvOutPortB(dwIoBase + ii, *(pbyCxtBuf + ii));
// restore CURR_RX_DESC_ADDR, CURR_TX_DESC_ADDR
VNSvOutPortD(dwIoBase + MAC_REG_TXDMAPTR0, *(unsigned long *)(pbyCxtBuf + MAC_REG_TXDMAPTR0));
VNSvOutPortD(dwIoBase + MAC_REG_AC0DMAPTR, *(unsigned long *)(pbyCxtBuf + MAC_REG_AC0DMAPTR));
VNSvOutPortD(dwIoBase + MAC_REG_BCNDMAPTR, *(unsigned long *)(pbyCxtBuf + MAC_REG_BCNDMAPTR));
VNSvOutPortD(dwIoBase + MAC_REG_RXDMAPTR0, *(unsigned long *)(pbyCxtBuf + MAC_REG_RXDMAPTR0));
VNSvOutPortD(dwIoBase + MAC_REG_RXDMAPTR1, *(unsigned long *)(pbyCxtBuf + MAC_REG_RXDMAPTR1));
}
/**
* set_channel() - Set NIC media channel
*
* @pDeviceHandler: The adapter to be set
* @uConnectionChannel: Channel to be set
*
* Return Value: true if succeeded; false if failed.
*
*/
bool set_channel(struct vnt_private *priv, struct ieee80211_channel *ch)
{
bool ret = true;
if (priv->byCurrentCh == ch->hw_value)
return ret;
/* Set VGA to max sensitivity */
if (priv->bUpdateBBVGA &&
priv->byBBVGACurrent != priv->abyBBVGA[0]) {
priv->byBBVGACurrent = priv->abyBBVGA[0];
BBvSetVGAGainOffset(priv, priv->byBBVGACurrent);
}
/* clear NAV */
MACvRegBitsOn(priv->PortOffset, MAC_REG_MACCR, MACCR_CLRNAV);
/* TX_PE will reserve 3 us for MAX2829 A mode only,
it is for better TX throughput */
if (priv->byRFType == RF_AIROHA7230)
RFbAL7230SelectChannelPostProcess(priv, priv->byCurrentCh,
ch->hw_value);
priv->byCurrentCh = ch->hw_value;
ret &= RFbSelectChannel(priv, priv->byRFType,
ch->hw_value);
/* Init Synthesizer Table */
if (priv->bEnablePSMode)
RFvWriteWakeProgSyn(priv, priv->byRFType, ch->hw_value);
BBvSoftwareReset(priv);
if (priv->byLocalID > REV_ID_VT3253_B1) {
unsigned long flags;
spin_lock_irqsave(&priv->lock, flags);
/* set HW default power register */
MACvSelectPage1(priv->PortOffset);
RFbSetPower(priv, RATE_1M, priv->byCurrentCh);
VNSvOutPortB(priv->PortOffset + MAC_REG_PWRCCK,
priv->byCurPwr);
RFbSetPower(priv, RATE_6M, priv->byCurrentCh);
VNSvOutPortB(priv->PortOffset + MAC_REG_PWROFDM,
priv->byCurPwr);
MACvSelectPage0(priv->PortOffset);
spin_unlock_irqrestore(&priv->lock, flags);
}
if (priv->byBBType == BB_TYPE_11B)
RFbSetPower(priv, RATE_1M, priv->byCurrentCh);
else
RFbSetPower(priv, RATE_6M, priv->byCurrentCh);
return ret;
}
/*
* Description:
* Save MAC registers to context buffer
*
* Parameters:
* In:
* io_base - Base Address for MAC
* Out:
* cxt_buf - Context buffer
*
* Return Value: none
*
*/
void MACvSaveContext(struct vnt_private *priv, unsigned char *cxt_buf)
{
void __iomem *io_base = priv->PortOffset;
/* read page0 register */
memcpy_fromio(cxt_buf, io_base, MAC_MAX_CONTEXT_SIZE_PAGE0);
MACvSelectPage1(io_base);
/* read page1 register */
memcpy_fromio(cxt_buf + MAC_MAX_CONTEXT_SIZE_PAGE0, io_base,
MAC_MAX_CONTEXT_SIZE_PAGE1);
MACvSelectPage0(io_base);
}
/*
* Description:
* Save MAC registers to context buffer
*
* Parameters:
* In:
* dwIoBase - Base Address for MAC
* Out:
* pbyCxtBuf - Context buffer
*
* Return Value: none
*
*/
void MACvSaveContext(void __iomem *dwIoBase, unsigned char *pbyCxtBuf)
{
int ii;
// read page0 register
for (ii = 0; ii < MAC_MAX_CONTEXT_SIZE_PAGE0; ii++)
VNSvInPortB((dwIoBase + ii), (pbyCxtBuf + ii));
MACvSelectPage1(dwIoBase);
// read page1 register
for (ii = 0; ii < MAC_MAX_CONTEXT_SIZE_PAGE1; ii++)
VNSvInPortB((dwIoBase + ii), (pbyCxtBuf + MAC_MAX_CONTEXT_SIZE_PAGE0 + ii));
MACvSelectPage0(dwIoBase);
}
/*
* Description:
* Restore MAC registers from context buffer
*
* Parameters:
* In:
* io_base - Base Address for MAC
* cxt_buf - Context buffer
* Out:
* none
*
* Return Value: none
*
*/
void MACvRestoreContext(struct vnt_private *priv, unsigned char *cxt_buf)
{
void __iomem *io_base = priv->PortOffset;
MACvSelectPage1(io_base);
/* restore page1 */
memcpy_toio(io_base, cxt_buf + MAC_MAX_CONTEXT_SIZE_PAGE0,
MAC_MAX_CONTEXT_SIZE_PAGE1);
MACvSelectPage0(io_base);
/* restore RCR,TCR,IMR... */
memcpy_toio(io_base + MAC_REG_RCR, cxt_buf + MAC_REG_RCR,
MAC_REG_ISR - MAC_REG_RCR);
/* restore MAC Config. */
memcpy_toio(io_base + MAC_REG_LRT, cxt_buf + MAC_REG_LRT,
MAC_REG_PAGE1SEL - MAC_REG_LRT);
iowrite8(*(cxt_buf + MAC_REG_CFG), io_base + MAC_REG_CFG);
/* restore PS Config. */
memcpy_toio(io_base + MAC_REG_PSCFG, cxt_buf + MAC_REG_PSCFG,
MAC_REG_BBREGCTL - MAC_REG_PSCFG);
/* restore CURR_RX_DESC_ADDR, CURR_TX_DESC_ADDR */
iowrite32(*(u32 *)(cxt_buf + MAC_REG_TXDMAPTR0),
io_base + MAC_REG_TXDMAPTR0);
iowrite32(*(u32 *)(cxt_buf + MAC_REG_AC0DMAPTR),
io_base + MAC_REG_AC0DMAPTR);
iowrite32(*(u32 *)(cxt_buf + MAC_REG_BCNDMAPTR),
io_base + MAC_REG_BCNDMAPTR);
iowrite32(*(u32 *)(cxt_buf + MAC_REG_RXDMAPTR0),
io_base + MAC_REG_RXDMAPTR0);
iowrite32(*(u32 *)(cxt_buf + MAC_REG_RXDMAPTR1),
io_base + MAC_REG_RXDMAPTR1);
}
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 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);
}
