/*+
*
* Description:
* Parsing the highest basic & support rate in rate field of frame.
*
* Parameters:
* In:
* pDevice - Pointer to the adapter
* pItemRates - Pointer to Rate field defined in 802.11 spec.
* pItemExtRates - Pointer to Extended Rate field defined in 802.11 spec.
* Out:
* pwMaxBasicRate - Maximum Basic Rate
* pwMaxSuppRate - Maximum Supported Rate
* pbyTopCCKRate - Maximum Basic Rate in CCK mode
* pbyTopOFDMRate - Maximum Basic Rate in OFDM mode
*
* Return Value: none
*
-*/
void RATEvParseMaxRate(
void *pDeviceHandler,
PWLAN_IE_SUPP_RATES pItemRates,
PWLAN_IE_SUPP_RATES pItemExtRates,
BOOL bUpdateBasicRate,
PWORD pwMaxBasicRate,
PWORD pwMaxSuppRate,
PWORD pwSuppRate,
PBYTE pbyTopCCKRate,
PBYTE pbyTopOFDMRate
)
{
PSDevice pDevice = (PSDevice) pDeviceHandler;
unsigned int ii;
BYTE byHighSuppRate = 0;
BYTE byRate = 0;
WORD wOldBasicRate = pDevice->wBasicRate;
unsigned int uRateLen;
if (pItemRates == NULL)
return;
*pwSuppRate = 0;
uRateLen = pItemRates->len;
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ParseMaxRate Len: %d\n", uRateLen);
if (pDevice->byBBType != BB_TYPE_11B) {
if (uRateLen > WLAN_RATES_MAXLEN)
uRateLen = WLAN_RATES_MAXLEN;
} else {
if (uRateLen > WLAN_RATES_MAXLEN_11B)
uRateLen = WLAN_RATES_MAXLEN_11B;
}
for (ii = 0; ii < uRateLen; ii++) {
byRate = (BYTE)(pItemRates->abyRates[ii]);
if (WLAN_MGMT_IS_BASICRATE(byRate) &&
(bUpdateBasicRate == TRUE)) {
// Add to basic rate set, update pDevice->byTopCCKBasicRate and pDevice->byTopOFDMBasicRate
CARDbAddBasicRate((void *)pDevice, RATEwGetRateIdx(byRate));
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ParseMaxRate AddBasicRate: %d\n", RATEwGetRateIdx(byRate));
}
byRate = (BYTE)(pItemRates->abyRates[ii]&0x7F);
if (byHighSuppRate == 0)
byHighSuppRate = byRate;
if (byRate > byHighSuppRate)
byHighSuppRate = byRate;
*pwSuppRate |= (1<<RATEwGetRateIdx(byRate));
}
if ((pItemExtRates != NULL) && (pItemExtRates->byElementID == WLAN_EID_EXTSUPP_RATES) &&
(pDevice->byBBType != BB_TYPE_11B)) {
unsigned int uExtRateLen = pItemExtRates->len;
if (uExtRateLen > WLAN_RATES_MAXLEN)
uExtRateLen = WLAN_RATES_MAXLEN;
for (ii = 0; ii < uExtRateLen ; ii++) {
byRate = (BYTE)(pItemExtRates->abyRates[ii]);
// select highest basic rate
if (WLAN_MGMT_IS_BASICRATE(pItemExtRates->abyRates[ii])) {
// Add to basic rate set, update pDevice->byTopCCKBasicRate and pDevice->byTopOFDMBasicRate
CARDbAddBasicRate((void *)pDevice, RATEwGetRateIdx(byRate));
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ParseMaxRate AddBasicRate: %d\n", RATEwGetRateIdx(byRate));
}
byRate = (BYTE)(pItemExtRates->abyRates[ii]&0x7F);
if (byHighSuppRate == 0)
byHighSuppRate = byRate;
if (byRate > byHighSuppRate)
byHighSuppRate = byRate;
*pwSuppRate |= (1<<RATEwGetRateIdx(byRate));
//DBG_PRN_GRP09(("ParseMaxRate : HighSuppRate: %d, %X\n", RATEwGetRateIdx(byRate), byRate));
}
} //if(pItemExtRates != NULL)
if ((pDevice->byPacketType == PK_TYPE_11GB)
&& CARDbIsOFDMinBasicRate((void *)pDevice)) {
pDevice->byPacketType = PK_TYPE_11GA;
}
*pbyTopCCKRate = pDevice->byTopCCKBasicRate;
*pbyTopOFDMRate = pDevice->byTopOFDMBasicRate;
*pwMaxSuppRate = RATEwGetRateIdx(byHighSuppRate);
if ((pDevice->byPacketType==PK_TYPE_11B) || (pDevice->byPacketType==PK_TYPE_11GB))
*pwMaxBasicRate = pDevice->byTopCCKBasicRate;
else
*pwMaxBasicRate = pDevice->byTopOFDMBasicRate;
if (wOldBasicRate != pDevice->wBasicRate)
CARDvSetRSPINF((void *)pDevice, pDevice->byBBType);
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Exit ParseMaxRate\n");
}
VOID
RATEvParseMaxRate (
IN PVOID pDeviceHandler,
IN PWLAN_IE_SUPP_RATES pItemRates,
IN PWLAN_IE_SUPP_RATES pItemExtRates,
IN BOOL bUpdateBasicRate,
OUT PWORD pwMaxBasicRate,
OUT PWORD pwMaxSuppRate,
OUT PWORD pwSuppRate,
OUT PBYTE pbyTopCCKRate,
OUT PBYTE pbyTopOFDMRate
)
{
PSDevice pDevice = (PSDevice) pDeviceHandler;
UINT ii;
BYTE byHighSuppRate = 0;
BYTE byRate = 0;
WORD wOldBasicRate = pDevice->wBasicRate;
UINT uRateLen;
if (pItemRates == NULL)
return;
*pwSuppRate = 0;
uRateLen = pItemRates->len;
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ParseMaxRate Len: %d\n", uRateLen);
if (pDevice->eCurrentPHYType != PHY_TYPE_11B) {
if (uRateLen > WLAN_RATES_MAXLEN)
uRateLen = WLAN_RATES_MAXLEN;
} else {
if (uRateLen > WLAN_RATES_MAXLEN_11B)
uRateLen = WLAN_RATES_MAXLEN_11B;
}
for (ii = 0; ii < uRateLen; ii++) {
byRate = (BYTE)(pItemRates->abyRates[ii]);
if (WLAN_MGMT_IS_BASICRATE(byRate) &&
(bUpdateBasicRate == TRUE)) {
CARDbAddBasicRate((PVOID)pDevice, wGetRateIdx(byRate));
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ParseMaxRate AddBasicRate: %d\n", wGetRateIdx(byRate));
}
byRate = (BYTE)(pItemRates->abyRates[ii]&0x7F);
if (byHighSuppRate == 0)
byHighSuppRate = byRate;
if (byRate > byHighSuppRate)
byHighSuppRate = byRate;
*pwSuppRate |= (1<<wGetRateIdx(byRate));
}
if ((pItemExtRates != NULL) && (pItemExtRates->byElementID == WLAN_EID_EXTSUPP_RATES) &&
(pDevice->eCurrentPHYType != PHY_TYPE_11B)) {
UINT uExtRateLen = pItemExtRates->len;
if (uExtRateLen > WLAN_RATES_MAXLEN)
uExtRateLen = WLAN_RATES_MAXLEN;
for (ii = 0; ii < uExtRateLen ; ii++) {
byRate = (BYTE)(pItemExtRates->abyRates[ii]);
if (WLAN_MGMT_IS_BASICRATE(pItemExtRates->abyRates[ii])) {
CARDbAddBasicRate((PVOID)pDevice, wGetRateIdx(byRate));
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ParseMaxRate AddBasicRate: %d\n", wGetRateIdx(byRate));
}
byRate = (BYTE)(pItemExtRates->abyRates[ii]&0x7F);
if (byHighSuppRate == 0)
byHighSuppRate = byRate;
if (byRate > byHighSuppRate)
byHighSuppRate = byRate;
*pwSuppRate |= (1<<wGetRateIdx(byRate));
}
}
if ((pDevice->byPacketType == PK_TYPE_11GB) && CARDbIsOFDMinBasicRate((PVOID)pDevice)) {
pDevice->byPacketType = PK_TYPE_11GA;
}
*pbyTopCCKRate = pDevice->byTopCCKBasicRate;
*pbyTopOFDMRate = pDevice->byTopOFDMBasicRate;
*pwMaxSuppRate = wGetRateIdx(byHighSuppRate);
if ((pDevice->byPacketType==PK_TYPE_11B) || (pDevice->byPacketType==PK_TYPE_11GB))
*pwMaxBasicRate = pDevice->byTopCCKBasicRate;
else
*pwMaxBasicRate = pDevice->byTopOFDMBasicRate;
if (wOldBasicRate != pDevice->wBasicRate)
CARDvSetRSPINF((PVOID)pDevice, pDevice->eCurrentPHYType);
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Exit ParseMaxRate\n");
}