Linux-2.6.33.2/drivers/staging/rtl8192u/ieee80211/rtl819x_HTProc.c
//As this function is mainly ported from Windows driver, so leave the name little changed. If any confusion caused, tell me. Created by WB. 2008.05.08
#include "ieee80211.h"
#include "rtl819x_HT.h"
u8 MCS_FILTER_ALL[16] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
u8 MCS_FILTER_1SS[16] = {0xff, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
u16 MCS_DATA_RATE[2][2][77] =
{ { {13, 26, 39, 52, 78, 104, 117, 130, 26, 52, 78 ,104, 156, 208, 234, 260,
39, 78, 117, 234, 312, 351, 390, 52, 104, 156, 208, 312, 416, 468, 520,
0, 78, 104, 130, 117, 156, 195, 104, 130, 130, 156, 182, 182, 208, 156, 195,
195, 234, 273, 273, 312, 130, 156, 181, 156, 181, 208, 234, 208, 234, 260, 260,
286, 195, 234, 273, 234, 273, 312, 351, 312, 351, 390, 390, 429}, // Long GI, 20MHz
{14, 29, 43, 58, 87, 116, 130, 144, 29, 58, 87, 116, 173, 231, 260, 289,
43, 87, 130, 173, 260, 347, 390, 433, 58, 116, 173, 231, 347, 462, 520, 578,
0, 87, 116, 144, 130, 173, 217, 116, 144, 144, 173, 202, 202, 231, 173, 217,
217, 260, 303, 303, 347, 144, 173, 202, 173, 202, 231, 260, 231, 260, 289, 289,
318, 217, 260, 303, 260, 303, 347, 390, 347, 390, 433, 433, 477} }, // Short GI, 20MHz
{ {27, 54, 81, 108, 162, 216, 243, 270, 54, 108, 162, 216, 324, 432, 486, 540,
81, 162, 243, 324, 486, 648, 729, 810, 108, 216, 324, 432, 648, 864, 972, 1080,
12, 162, 216, 270, 243, 324, 405, 216, 270, 270, 324, 378, 378, 432, 324, 405,
405, 486, 567, 567, 648, 270, 324, 378, 324, 378, 432, 486, 432, 486, 540, 540,
594, 405, 486, 567, 486, 567, 648, 729, 648, 729, 810, 810, 891}, // Long GI, 40MHz
{30, 60, 90, 120, 180, 240, 270, 300, 60, 120, 180, 240, 360, 480, 540, 600,
90, 180, 270, 360, 540, 720, 810, 900, 120, 240, 360, 480, 720, 960, 1080, 1200,
13, 180, 240, 300, 270, 360, 450, 240, 300, 300, 360, 420, 420, 480, 360, 450,
450, 540, 630, 630, 720, 300, 360, 420, 360, 420, 480, 540, 480, 540, 600, 600,
660, 450, 540, 630, 540, 630, 720, 810, 720, 810, 900, 900, 990} } // Short GI, 40MHz
};
static u8 UNKNOWN_BORADCOM[3] = {0x00, 0x14, 0xbf};
static u8 LINKSYSWRT330_LINKSYSWRT300_BROADCOM[3] = {0x00, 0x1a, 0x70};
static u8 LINKSYSWRT350_LINKSYSWRT150_BROADCOM[3] = {0x00, 0x1d, 0x7e};
static u8 NETGEAR834Bv2_BROADCOM[3] = {0x00, 0x1b, 0x2f};
static u8 BELKINF5D8233V1_RALINK[3] = {0x00, 0x17, 0x3f}; //cosa 03202008
static u8 BELKINF5D82334V3_RALINK[3] = {0x00, 0x1c, 0xdf};
static u8 PCI_RALINK[3] = {0x00, 0x90, 0xcc};
static u8 EDIMAX_RALINK[3] = {0x00, 0x0e, 0x2e};
static u8 AIRLINK_RALINK[3] = {0x00, 0x18, 0x02};
//static u8 DLINK_ATHEROS[3] = {0x00, 0x1c, 0xf0};
static u8 CISCO_BROADCOM[3] = {0x00, 0x17, 0x94};
// 2008/04/01 MH For Cisco G mode RX TP We need to change FW duration. Shoud we put the
// code in other place??
//static u8 WIFI_CISCO_G_AP[3] = {0x00, 0x40, 0x96};
/********************************************************************************************************************
*function: This function update default settings in pHTInfo structure
* input: PRT_HIGH_THROUGHPUT pHTInfo
* output: none
* return: none
* notice: These value need be modified if any changes.
* *****************************************************************************************************************/
void HTUpdateDefaultSetting(struct ieee80211_device* ieee)
{
PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
//const typeof( ((struct ieee80211_device *)0)->pHTInfo ) *__mptr = &pHTInfo;
//printk("pHTinfo:%p, &pHTinfo:%p, mptr:%p, offsetof:%x\n", pHTInfo, &pHTInfo, __mptr, offsetof(struct ieee80211_device, pHTInfo));
//printk("===>ieee:%p,\n", ieee);
// ShortGI support
pHTInfo->bRegShortGI20MHz= 1;
pHTInfo->bRegShortGI40MHz= 1;
// 40MHz channel support
pHTInfo->bRegBW40MHz = 1;
// CCK rate support in 40MHz channel
if(pHTInfo->bRegBW40MHz)
pHTInfo->bRegSuppCCK = 1;
else
pHTInfo->bRegSuppCCK = true;
// AMSDU related
pHTInfo->nAMSDU_MaxSize = 7935UL;
pHTInfo->bAMSDU_Support = 0;
// AMPDU related
pHTInfo->bAMPDUEnable = 1;
pHTInfo->AMPDU_Factor = 2; //// 0: 2n13(8K), 1:2n14(16K), 2:2n15(32K), 3:2n16(64k)
pHTInfo->MPDU_Density = 0;// 0: No restriction, 1: 1/8usec, 2: 1/4usec, 3: 1/2usec, 4: 1usec, 5: 2usec, 6: 4usec, 7:8usec
// MIMO Power Save
pHTInfo->SelfMimoPs = 3;// 0: Static Mimo Ps, 1: Dynamic Mimo Ps, 3: No Limitation, 2: Reserved(Set to 3 automatically.)
if(pHTInfo->SelfMimoPs == 2)
pHTInfo->SelfMimoPs = 3;
// 8190 only. Assign rate operation mode to firmware
ieee->bTxDisableRateFallBack = 0;
ieee->bTxUseDriverAssingedRate = 0;
#ifdef TO_DO_LIST
// 8190 only. Assign duration operation mode to firmware
pMgntInfo->bTxEnableFwCalcDur = (BOOLEAN)pNdisCommon->bRegTxEnableFwCalcDur;
#endif
// 8190 only, Realtek proprietary aggregation mode
// Set MPDUDensity=2, 1: Set MPDUDensity=2(32k) for Realtek AP and set MPDUDensity=0(8k) for others
pHTInfo->bRegRT2RTAggregation = 1;//0: Set MPDUDensity=2, 1: Set MPDUDensity=2(32k) for Realtek AP and set MPDUDensity=0(8k) for others
// For Rx Reorder Control
pHTInfo->bRegRxReorderEnable = 1;
pHTInfo->RxReorderWinSize = 64;
pHTInfo->RxReorderPendingTime = 30;
#ifdef USB_TX_DRIVER_AGGREGATION_ENABLE
pHTInfo->UsbTxAggrNum = 4;
#endif
#ifdef USB_RX_AGGREGATION_SUPPORT
pHTInfo->UsbRxFwAggrEn = 1;
pHTInfo->UsbRxFwAggrPageNum = 24;
pHTInfo->UsbRxFwAggrPacketNum = 8;
pHTInfo->UsbRxFwAggrTimeout = 16; ////usb rx FW aggregation timeout threshold.It's in units of 64us
#endif
}
/********************************************************************************************************************
*function: This function print out each field on HT capability IE mainly from (Beacon/ProbeRsp/AssocReq)
* input: u8* CapIE //Capability IE to be printed out
* u8* TitleString //mainly print out caller function
* output: none
* return: none
* notice: Driver should not print out this message by default.
* *****************************************************************************************************************/
void HTDebugHTCapability(u8* CapIE, u8* TitleString )
{
static u8 EWC11NHTCap[] = {0x00, 0x90, 0x4c, 0x33}; // For 11n EWC definition, 2007.07.17, by Emily
PHT_CAPABILITY_ELE pCapELE;
if(!memcmp(CapIE, EWC11NHTCap, sizeof(EWC11NHTCap)))
{
//EWC IE
IEEE80211_DEBUG(IEEE80211_DL_HT, "EWC IE in %s()\n", __FUNCTION__);
pCapELE = (PHT_CAPABILITY_ELE)(&CapIE[4]);
}else
pCapELE = (PHT_CAPABILITY_ELE)(&CapIE[0]);
IEEE80211_DEBUG(IEEE80211_DL_HT, "<Log HT Capability>. Called by %s\n", TitleString );
IEEE80211_DEBUG(IEEE80211_DL_HT, "\tSupported Channel Width = %s\n", (pCapELE->ChlWidth)?"20MHz": "20/40MHz");
IEEE80211_DEBUG(IEEE80211_DL_HT, "\tSupport Short GI for 20M = %s\n", (pCapELE->ShortGI20Mhz)?"YES": "NO");
IEEE80211_DEBUG(IEEE80211_DL_HT, "\tSupport Short GI for 40M = %s\n", (pCapELE->ShortGI40Mhz)?"YES": "NO");
IEEE80211_DEBUG(IEEE80211_DL_HT, "\tSupport TX STBC = %s\n", (pCapELE->TxSTBC)?"YES": "NO");
IEEE80211_DEBUG(IEEE80211_DL_HT, "\tMax AMSDU Size = %s\n", (pCapELE->MaxAMSDUSize)?"3839": "7935");
IEEE80211_DEBUG(IEEE80211_DL_HT, "\tSupport CCK in 20/40 mode = %s\n", (pCapELE->DssCCk)?"YES": "NO");
IEEE80211_DEBUG(IEEE80211_DL_HT, "\tMax AMPDU Factor = %d\n", pCapELE->MaxRxAMPDUFactor);
IEEE80211_DEBUG(IEEE80211_DL_HT, "\tMPDU Density = %d\n", pCapELE->MPDUDensity);
IEEE80211_DEBUG(IEEE80211_DL_HT, "\tMCS Rate Set = [%x][%x][%x][%x][%x]\n", pCapELE->MCS[0],\
pCapELE->MCS[1], pCapELE->MCS[2], pCapELE->MCS[3], pCapELE->MCS[4]);
return;
}
/********************************************************************************************************************
*function: This function print out each field on HT Information IE mainly from (Beacon/ProbeRsp)
* input: u8* InfoIE //Capability IE to be printed out
* u8* TitleString //mainly print out caller function
* output: none
* return: none
* notice: Driver should not print out this message by default.
* *****************************************************************************************************************/
void HTDebugHTInfo(u8* InfoIE, u8* TitleString)
{
static u8 EWC11NHTInfo[] = {0x00, 0x90, 0x4c, 0x34}; // For 11n EWC definition, 2007.07.17, by Emily
PHT_INFORMATION_ELE pHTInfoEle;
if(!memcmp(InfoIE, EWC11NHTInfo, sizeof(EWC11NHTInfo)))
{
// Not EWC IE
IEEE80211_DEBUG(IEEE80211_DL_HT, "EWC IE in %s()\n", __FUNCTION__);
pHTInfoEle = (PHT_INFORMATION_ELE)(&InfoIE[4]);
}else
pHTInfoEle = (PHT_INFORMATION_ELE)(&InfoIE[0]);
IEEE80211_DEBUG(IEEE80211_DL_HT, "<Log HT Information Element>. Called by %s\n", TitleString);
IEEE80211_DEBUG(IEEE80211_DL_HT, "\tPrimary channel = %d\n", pHTInfoEle->ControlChl);
IEEE80211_DEBUG(IEEE80211_DL_HT, "\tSenondary channel =");
switch(pHTInfoEle->ExtChlOffset)
{
case 0:
IEEE80211_DEBUG(IEEE80211_DL_HT, "Not Present\n");
break;
case 1:
IEEE80211_DEBUG(IEEE80211_DL_HT, "Upper channel\n");
break;
case 2:
IEEE80211_DEBUG(IEEE80211_DL_HT, "Reserved. Eooro!!!\n");
break;
case 3:
IEEE80211_DEBUG(IEEE80211_DL_HT, "Lower Channel\n");
break;
}
IEEE80211_DEBUG(IEEE80211_DL_HT, "\tRecommended channel width = %s\n", (pHTInfoEle->RecommemdedTxWidth)?"20Mhz": "40Mhz");
IEEE80211_DEBUG(IEEE80211_DL_HT, "\tOperation mode for protection = ");
switch(pHTInfoEle->OptMode)
{
case 0:
IEEE80211_DEBUG(IEEE80211_DL_HT, "No Protection\n");
break;
case 1:
IEEE80211_DEBUG(IEEE80211_DL_HT, "HT non-member protection mode\n");
break;
case 2:
IEEE80211_DEBUG(IEEE80211_DL_HT, "Suggest to open protection\n");
break;
case 3:
IEEE80211_DEBUG(IEEE80211_DL_HT, "HT mixed mode\n");
break;
}
IEEE80211_DEBUG(IEEE80211_DL_HT, "\tBasic MCS Rate Set = [%x][%x][%x][%x][%x]\n", pHTInfoEle->BasicMSC[0],\
pHTInfoEle->BasicMSC[1], pHTInfoEle->BasicMSC[2], pHTInfoEle->BasicMSC[3], pHTInfoEle->BasicMSC[4]);
return;
}
/*
* Return: true if station in half n mode and AP supports 40 bw
*/
bool IsHTHalfNmode40Bandwidth(struct ieee80211_device* ieee)
{
bool retValue = false;
PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
if(pHTInfo->bCurrentHTSupport == false ) // wireless is n mode
retValue = false;
else if(pHTInfo->bRegBW40MHz == false) // station supports 40 bw
retValue = false;
else if(!ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev)) // station in half n mode
retValue = false;
else if(((PHT_CAPABILITY_ELE)(pHTInfo->PeerHTCapBuf))->ChlWidth) // ap support 40 bw
retValue = true;
else
retValue = false;
return retValue;
}
bool IsHTHalfNmodeSGI(struct ieee80211_device* ieee, bool is40MHz)
{
bool retValue = false;
PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
if(pHTInfo->bCurrentHTSupport == false ) // wireless is n mode
retValue = false;
else if(!ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev)) // station in half n mode
retValue = false;
else if(is40MHz) // ap support 40 bw
{
if(((PHT_CAPABILITY_ELE)(pHTInfo->PeerHTCapBuf))->ShortGI40Mhz) // ap support 40 bw short GI
retValue = true;
else
retValue = false;
}
else
{
if(((PHT_CAPABILITY_ELE)(pHTInfo->PeerHTCapBuf))->ShortGI20Mhz) // ap support 40 bw short GI
retValue = true;
else
retValue = false;
}
return retValue;
}
u16 HTHalfMcsToDataRate(struct ieee80211_device* ieee, u8 nMcsRate)
{
u8 is40MHz;
u8 isShortGI;
is40MHz = (IsHTHalfNmode40Bandwidth(ieee))?1:0;
isShortGI = (IsHTHalfNmodeSGI(ieee, is40MHz))? 1:0;
return MCS_DATA_RATE[is40MHz][isShortGI][(nMcsRate&0x7f)];
}
u16 HTMcsToDataRate( struct ieee80211_device* ieee, u8 nMcsRate)
{
PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
u8 is40MHz = (pHTInfo->bCurBW40MHz)?1:0;
u8 isShortGI = (pHTInfo->bCurBW40MHz)?
((pHTInfo->bCurShortGI40MHz)?1:0):
((pHTInfo->bCurShortGI20MHz)?1:0);
return MCS_DATA_RATE[is40MHz][isShortGI][(nMcsRate&0x7f)];
}
/********************************************************************************************************************
*function: This function returns current datarate.
* input: struct ieee80211_device* ieee
* u8 nDataRate
* output: none
* return: tx rate
* notice: quite unsure about how to use this function //wb
* *****************************************************************************************************************/
u16 TxCountToDataRate( struct ieee80211_device* ieee, u8 nDataRate)
{
//PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
u16 CCKOFDMRate[12] = {0x02 , 0x04 , 0x0b , 0x16 , 0x0c , 0x12 , 0x18 , 0x24 , 0x30 , 0x48 , 0x60 , 0x6c};
u8 is40MHz = 0;
u8 isShortGI = 0;
if(nDataRate < 12)
{
return CCKOFDMRate[nDataRate];
}
else
{
if (nDataRate >= 0x10 && nDataRate <= 0x1f)//if(nDataRate > 11 && nDataRate < 28 )
{
is40MHz = 0;
isShortGI = 0;
// nDataRate = nDataRate - 12;
}
else if(nDataRate >=0x20 && nDataRate <= 0x2f ) //(27, 44)
{
is40MHz = 1;
isShortGI = 0;
//nDataRate = nDataRate - 28;
}
else if(nDataRate >= 0x30 && nDataRate <= 0x3f ) //(43, 60)
{
is40MHz = 0;
isShortGI = 1;
//nDataRate = nDataRate - 44;
}
else if(nDataRate >= 0x40 && nDataRate <= 0x4f ) //(59, 76)
{
is40MHz = 1;
isShortGI = 1;
//nDataRate = nDataRate - 60;
}
return MCS_DATA_RATE[is40MHz][isShortGI][nDataRate&0xf];
}
}
bool IsHTHalfNmodeAPs(struct ieee80211_device* ieee)
{
bool retValue = false;
struct ieee80211_network* net = &ieee->current_network;
if((memcmp(net->bssid, BELKINF5D8233V1_RALINK, 3)==0) ||
(memcmp(net->bssid, BELKINF5D82334V3_RALINK, 3)==0) ||
(memcmp(net->bssid, PCI_RALINK, 3)==0) ||
(memcmp(net->bssid, EDIMAX_RALINK, 3)==0) ||
(memcmp(net->bssid, AIRLINK_RALINK, 3)==0) ||
(net->ralink_cap_exist))
retValue = true;
else if((memcmp(net->bssid, UNKNOWN_BORADCOM, 3)==0) ||
(memcmp(net->bssid, LINKSYSWRT330_LINKSYSWRT300_BROADCOM, 3)==0)||
(memcmp(net->bssid, LINKSYSWRT350_LINKSYSWRT150_BROADCOM, 3)==0)||
(memcmp(net->bssid, NETGEAR834Bv2_BROADCOM, 3)==0) ||
(net->broadcom_cap_exist))
retValue = true;
else if(net->bssht.bdRT2RTAggregation)
retValue = true;
else
retValue = false;
return retValue;
}
/********************************************************************************************************************
*function: This function returns peer IOT.
* input: struct ieee80211_device* ieee
* output: none
* return:
* notice:
* *****************************************************************************************************************/
void HTIOTPeerDetermine(struct ieee80211_device* ieee)
{
PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
struct ieee80211_network* net = &ieee->current_network;
if(net->bssht.bdRT2RTAggregation)
pHTInfo->IOTPeer = HT_IOT_PEER_REALTEK;
else if(net->broadcom_cap_exist)
pHTInfo->IOTPeer = HT_IOT_PEER_BROADCOM;
else if((memcmp(net->bssid, UNKNOWN_BORADCOM, 3)==0) ||
(memcmp(net->bssid, LINKSYSWRT330_LINKSYSWRT300_BROADCOM, 3)==0)||
(memcmp(net->bssid, LINKSYSWRT350_LINKSYSWRT150_BROADCOM, 3)==0)||
(memcmp(net->bssid, NETGEAR834Bv2_BROADCOM, 3)==0) )
pHTInfo->IOTPeer = HT_IOT_PEER_BROADCOM;
else if((memcmp(net->bssid, BELKINF5D8233V1_RALINK, 3)==0) ||
(memcmp(net->bssid, BELKINF5D82334V3_RALINK, 3)==0) ||
(memcmp(net->bssid, PCI_RALINK, 3)==0) ||
(memcmp(net->bssid, EDIMAX_RALINK, 3)==0) ||
(memcmp(net->bssid, AIRLINK_RALINK, 3)==0) ||
net->ralink_cap_exist)
pHTInfo->IOTPeer = HT_IOT_PEER_RALINK;
else if(net->atheros_cap_exist)
pHTInfo->IOTPeer = HT_IOT_PEER_ATHEROS;
else if(memcmp(net->bssid, CISCO_BROADCOM, 3)==0)
pHTInfo->IOTPeer = HT_IOT_PEER_CISCO;
else
pHTInfo->IOTPeer = HT_IOT_PEER_UNKNOWN;
IEEE80211_DEBUG(IEEE80211_DL_IOT, "Joseph debug!! IOTPEER: %x\n", pHTInfo->IOTPeer);
}
/********************************************************************************************************************
*function: Check whether driver should declare received rate up to MCS13 only since some chipset is not good
* at receiving MCS14~15 frame from some AP.
* input: struct ieee80211_device* ieee
* u8 * PeerMacAddr
* output: none
* return: return 1 if driver should declare MCS13 only(otherwise return 0)
* *****************************************************************************************************************/
u8 HTIOTActIsDisableMCS14(struct ieee80211_device* ieee, u8* PeerMacAddr)
{
u8 ret = 0;
return ret;
}
/**
* Function: HTIOTActIsDisableMCS15
*
* Overview: Check whether driver should declare capability of receving MCS15
*
* Input:
* PADAPTER Adapter,
*
* Output: None
* Return: true if driver should disable MCS15
* 2008.04.15 Emily
*/
bool HTIOTActIsDisableMCS15(struct ieee80211_device* ieee)
{
bool retValue = false;
#ifdef TODO
// Apply for 819u only
#if (HAL_CODE_BASE==RTL8192)
#if (DEV_BUS_TYPE == USB_INTERFACE)
// Alway disable MCS15 by Jerry Chang's request.by Emily, 2008.04.15
retValue = true;
#elif (DEV_BUS_TYPE == PCI_INTERFACE)
// Enable MCS15 if the peer is Cisco AP. by Emily, 2008.05.12
// if(pBssDesc->bCiscoCapExist)
// retValue = false;
// else
retValue = false;
#endif
#endif
#endif
// Jerry Chang suggest that 8190 1x2 does not need to disable MCS15
return retValue;
}
/**
* Function: HTIOTActIsDisableMCSTwoSpatialStream
*
* Overview: Check whether driver should declare capability of receving All 2 ss packets
*
* Input:
* PADAPTER Adapter,
*
* Output: None
* Return: true if driver should disable all two spatial stream packet
* 2008.04.21 Emily
*/
bool HTIOTActIsDisableMCSTwoSpatialStream(struct ieee80211_device* ieee, u8 *PeerMacAddr)
{
bool retValue = false;
#ifdef TODO
// Apply for 819u only
#endif
return retValue;
}
/********************************************************************************************************************
*function: Check whether driver should disable EDCA turbo mode
* input: struct ieee80211_device* ieee
* u8* PeerMacAddr
* output: none
* return: return 1 if driver should disable EDCA turbo mode(otherwise return 0)
* *****************************************************************************************************************/
u8 HTIOTActIsDisableEDCATurbo(struct ieee80211_device* ieee, u8* PeerMacAddr)
{
u8 retValue = false; // default enable EDCA Turbo mode.
// Set specific EDCA parameter for different AP in DM handler.
return retValue;
}
/********************************************************************************************************************
*function: Check whether we need to use OFDM to sned MGNT frame for broadcom AP
* input: struct ieee80211_network *network //current network we live
* output: none
* return: return 1 if true
* *****************************************************************************************************************/
u8 HTIOTActIsMgntUseCCK6M(struct ieee80211_network *network)
{
u8 retValue = 0;
// 2008/01/25 MH Judeg if we need to use OFDM to sned MGNT frame for broadcom AP.
// 2008/01/28 MH We must prevent that we select null bssid to link.
if(network->broadcom_cap_exist)
{
retValue = 1;
}
return retValue;
}
u8 HTIOTActIsCCDFsync(u8* PeerMacAddr)
{
u8 retValue = 0;
if( (memcmp(PeerMacAddr, UNKNOWN_BORADCOM, 3)==0) ||
(memcmp(PeerMacAddr, LINKSYSWRT330_LINKSYSWRT300_BROADCOM, 3)==0) ||
(memcmp(PeerMacAddr, LINKSYSWRT350_LINKSYSWRT150_BROADCOM, 3) ==0))
{
retValue = 1;
}
return retValue;
}
void HTResetIOTSetting(
PRT_HIGH_THROUGHPUT pHTInfo
)
{
pHTInfo->IOTAction = 0;
pHTInfo->IOTPeer = HT_IOT_PEER_UNKNOWN;
}
/********************************************************************************************************************
*function: Construct Capablility Element in Beacon... if HTEnable is turned on
* input: struct ieee80211_device* ieee
* u8* posHTCap //pointer to store Capability Ele
* u8* len //store length of CE
* u8 IsEncrypt //whether encrypt, needed further
* output: none
* return: none
* notice: posHTCap can't be null and should be initialized before.
* *****************************************************************************************************************/
void HTConstructCapabilityElement(struct ieee80211_device* ieee, u8* posHTCap, u8* len, u8 IsEncrypt)
{
PRT_HIGH_THROUGHPUT pHT = ieee->pHTInfo;
PHT_CAPABILITY_ELE pCapELE = NULL;
//u8 bIsDeclareMCS13;
if ((posHTCap == NULL) || (pHT == NULL))
{
IEEE80211_DEBUG(IEEE80211_DL_ERR, "posHTCap or pHTInfo can't be null in HTConstructCapabilityElement()\n");
return;
}
memset(posHTCap, 0, *len);
if(pHT->ePeerHTSpecVer == HT_SPEC_VER_EWC)
{
u8 EWC11NHTCap[] = {0x00, 0x90, 0x4c, 0x33}; // For 11n EWC definition, 2007.07.17, by Emily
memcpy(posHTCap, EWC11NHTCap, sizeof(EWC11NHTCap));
pCapELE = (PHT_CAPABILITY_ELE)&(posHTCap[4]);
}else
{
pCapELE = (PHT_CAPABILITY_ELE)posHTCap;
}
//HT capability info
pCapELE->AdvCoding = 0; // This feature is not supported now!!
if(ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))
{
pCapELE->ChlWidth = 0;
}
else
{
pCapELE->ChlWidth = (pHT->bRegBW40MHz?1:0);
}
// pCapELE->ChlWidth = (pHT->bRegBW40MHz?1:0);
pCapELE->MimoPwrSave = pHT->SelfMimoPs;
pCapELE->GreenField = 0; // This feature is not supported now!!
pCapELE->ShortGI20Mhz = 1; // We can receive Short GI!!
pCapELE->ShortGI40Mhz = 1; // We can receive Short GI!!
//DbgPrint("TX HT cap/info ele BW=%d SG20=%d SG40=%d\n\r",
//pCapELE->ChlWidth, pCapELE->ShortGI20Mhz, pCapELE->ShortGI40Mhz);
pCapELE->TxSTBC = 1;
pCapELE->RxSTBC = 0;
pCapELE->DelayBA = 0; // Do not support now!!
pCapELE->MaxAMSDUSize = (MAX_RECEIVE_BUFFER_SIZE>=7935)?1:0;
pCapELE->DssCCk = ((pHT->bRegBW40MHz)?(pHT->bRegSuppCCK?1:0):0);
pCapELE->PSMP = 0; // Do not support now!!
pCapELE->LSigTxopProtect = 0; // Do not support now!!
//MAC HT parameters info
// TODO: Nedd to take care of this part
IEEE80211_DEBUG(IEEE80211_DL_HT, "TX HT cap/info ele BW=%d MaxAMSDUSize:%d DssCCk:%d\n", pCapELE->ChlWidth, pCapELE->MaxAMSDUSize, pCapELE->DssCCk);
if( IsEncrypt)
{
pCapELE->MPDUDensity = 7; // 8us
pCapELE->MaxRxAMPDUFactor = 2; // 2 is for 32 K and 3 is 64K
}
else
{
pCapELE->MaxRxAMPDUFactor = 3; // 2 is for 32 K and 3 is 64K
pCapELE->MPDUDensity = 0; // no density
}
//Supported MCS set
memcpy(pCapELE->MCS, ieee->Regdot11HTOperationalRateSet, 16);
if(pHT->IOTAction & HT_IOT_ACT_DISABLE_MCS15)
pCapELE->MCS[1] &= 0x7f;
if(pHT->IOTAction & HT_IOT_ACT_DISABLE_MCS14)
pCapELE->MCS[1] &= 0xbf;
if(pHT->IOTAction & HT_IOT_ACT_DISABLE_ALL_2SS)
pCapELE->MCS[1] &= 0x00;
// 2008.06.12
// For RTL819X, if pairwisekey = wep/tkip, ap is ralink, we support only MCS0~7.
if(ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))
{
int i;
for(i = 1; i< 16; i++)
pCapELE->MCS[i] = 0;
}
//Extended HT Capability Info
memset(&pCapELE->ExtHTCapInfo, 0, 2);
//TXBF Capabilities
memset(pCapELE->TxBFCap, 0, 4);
//Antenna Selection Capabilities
pCapELE->ASCap = 0;
//add 2 to give space for element ID and len when construct frames
if(pHT->ePeerHTSpecVer == HT_SPEC_VER_EWC)
*len = 30 + 2;
else
*len = 26 + 2;
// IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA | IEEE80211_DL_HT, posHTCap, *len -2);
//Print each field in detail. Driver should not print out this message by default
// HTDebugHTCapability(posHTCap, (u8*)"HTConstructCapability()");
return;
}
/********************************************************************************************************************
*function: Construct Information Element in Beacon... if HTEnable is turned on
* input: struct ieee80211_device* ieee
* u8* posHTCap //pointer to store Information Ele
* u8* len //store len of
* u8 IsEncrypt //whether encrypt, needed further
* output: none
* return: none
* notice: posHTCap can't be null and be initialized before. only AP and IBSS sta should do this
* *****************************************************************************************************************/
void HTConstructInfoElement(struct ieee80211_device* ieee, u8* posHTInfo, u8* len, u8 IsEncrypt)
{
PRT_HIGH_THROUGHPUT pHT = ieee->pHTInfo;
PHT_INFORMATION_ELE pHTInfoEle = (PHT_INFORMATION_ELE)posHTInfo;
if ((posHTInfo == NULL) || (pHTInfoEle == NULL))
{
IEEE80211_DEBUG(IEEE80211_DL_ERR, "posHTInfo or pHTInfoEle can't be null in HTConstructInfoElement()\n");
return;
}
memset(posHTInfo, 0, *len);
if ( (ieee->iw_mode == IW_MODE_ADHOC) || (ieee->iw_mode == IW_MODE_MASTER)) //ap mode is not currently supported
{
pHTInfoEle->ControlChl = ieee->current_network.channel;
pHTInfoEle->ExtChlOffset = ((pHT->bRegBW40MHz == false)?HT_EXTCHNL_OFFSET_NO_EXT:
(ieee->current_network.channel<=6)?
HT_EXTCHNL_OFFSET_UPPER:HT_EXTCHNL_OFFSET_LOWER);
pHTInfoEle->RecommemdedTxWidth = pHT->bRegBW40MHz;
pHTInfoEle->RIFS = 0;
pHTInfoEle->PSMPAccessOnly = 0;
pHTInfoEle->SrvIntGranularity = 0;
pHTInfoEle->OptMode = pHT->CurrentOpMode;
pHTInfoEle->NonGFDevPresent = 0;
pHTInfoEle->DualBeacon = 0;
pHTInfoEle->SecondaryBeacon = 0;
pHTInfoEle->LSigTxopProtectFull = 0;
pHTInfoEle->PcoActive = 0;
pHTInfoEle->PcoPhase = 0;
memset(pHTInfoEle->BasicMSC, 0, 16);
*len = 22 + 2; //same above
}
else
{
//STA should not generate High Throughput Information Element
*len = 0;
}
//IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA | IEEE80211_DL_HT, posHTInfo, *len - 2);
//HTDebugHTInfo(posHTInfo, "HTConstructInforElement");
return;
}
/*
* According to experiment, Realtek AP to STA (based on rtl8190) may achieve best performance
* if both STA and AP set limitation of aggregation size to 32K, that is, set AMPDU density to 2
* (Ref: IEEE 11n specification). However, if Realtek STA associates to other AP, STA should set
* limitation of aggregation size to 8K, otherwise, performance of traffic stream from STA to AP
* will be much less than the traffic stream from AP to STA if both of the stream runs concurrently
* at the same time.
*
* Frame Format
* Element ID Length OUI Type1 Reserved
* 1 byte 1 byte 3 bytes 1 byte 1 byte
*
* OUI = 0x00, 0xe0, 0x4c,
* Type = 0x02
* Reserved = 0x00
*
* 2007.8.21 by Emily
*/
/********************************************************************************************************************
*function: Construct Information Element in Beacon... in RT2RT condition
* input: struct ieee80211_device* ieee
* u8* posRT2RTAgg //pointer to store Information Ele
* u8* len //store len
* output: none
* return: none
* notice:
* *****************************************************************************************************************/
void HTConstructRT2RTAggElement(struct ieee80211_device* ieee, u8* posRT2RTAgg, u8* len)
{
if (posRT2RTAgg == NULL) {
IEEE80211_DEBUG(IEEE80211_DL_ERR, "posRT2RTAgg can't be null in HTConstructRT2RTAggElement()\n");
return;
}
memset(posRT2RTAgg, 0, *len);
*posRT2RTAgg++ = 0x00;
*posRT2RTAgg++ = 0xe0;
*posRT2RTAgg++ = 0x4c;
*posRT2RTAgg++ = 0x02;
*posRT2RTAgg++ = 0x01;
*posRT2RTAgg = 0x10;//*posRT2RTAgg = 0x02;
if(ieee->bSupportRemoteWakeUp) {
*posRT2RTAgg |= 0x08;//RT_HT_CAP_USE_WOW;
}
*len = 6 + 2;
return;
#ifdef TODO
#if (HAL_CODE_BASE == RTL8192 && DEV_BUS_TYPE == USB_INTERFACE)
/*
//Emily. If it is required to Ask Realtek AP to send AMPDU during AES mode, enable this
section of code.
if(IS_UNDER_11N_AES_MODE(Adapter))
{
posRT2RTAgg->Octet[5] |=RT_HT_CAP_USE_AMPDU;
}else
{
posRT2RTAgg->Octet[5] &= 0xfb;
}
*/
#else
// Do Nothing
#endif
posRT2RTAgg->Length = 6;
#endif
}
/********************************************************************************************************************
*function: Pick the right Rate Adaptive table to use
* input: struct ieee80211_device* ieee
* u8* pOperateMCS //A pointer to MCS rate bitmap
* return: always we return true
* notice:
* *****************************************************************************************************************/
u8 HT_PickMCSRate(struct ieee80211_device* ieee, u8* pOperateMCS)
{
u8 i;
if (pOperateMCS == NULL)
{
IEEE80211_DEBUG(IEEE80211_DL_ERR, "pOperateMCS can't be null in HT_PickMCSRate()\n");
return false;
}
switch(ieee->mode)
{
case IEEE_A:
case IEEE_B:
case IEEE_G:
//legacy rate routine handled at selectedrate
//no MCS rate
for(i=0;i<=15;i++){
pOperateMCS[i] = 0;
}
break;
case IEEE_N_24G: //assume CCK rate ok
case IEEE_N_5G:
// Legacy part we only use 6, 5.5,2,1 for N_24G and 6 for N_5G.
// Legacy part shall be handled at SelectRateSet().
//HT part
// TODO: may be different if we have different number of antenna
pOperateMCS[0] &=RATE_ADPT_1SS_MASK; //support MCS 0~7
pOperateMCS[1] &=RATE_ADPT_2SS_MASK;
pOperateMCS[3] &=RATE_ADPT_MCS32_MASK;
break;
//should never reach here
default:
break;
}
return true;
}
/*
* Description:
* This function will get the highest speed rate in input MCS set.
*
* /param Adapter Pionter to Adapter entity
* pMCSRateSet Pointer to MCS rate bitmap
* pMCSFilter Pointer to MCS rate filter
*
* /return Highest MCS rate included in pMCSRateSet and filtered by pMCSFilter.
*
*/
/********************************************************************************************************************
*function: This function will get the highest speed rate in input MCS set.
* input: struct ieee80211_device* ieee
* u8* pMCSRateSet //Pointer to MCS rate bitmap
* u8* pMCSFilter //Pointer to MCS rate filter
* return: Highest MCS rate included in pMCSRateSet and filtered by pMCSFilter
* notice:
* *****************************************************************************************************************/
u8 HTGetHighestMCSRate(struct ieee80211_device* ieee, u8* pMCSRateSet, u8* pMCSFilter)
{
u8 i, j;
u8 bitMap;
u8 mcsRate = 0;
u8 availableMcsRate[16];
if (pMCSRateSet == NULL || pMCSFilter == NULL)
{
IEEE80211_DEBUG(IEEE80211_DL_ERR, "pMCSRateSet or pMCSFilter can't be null in HTGetHighestMCSRate()\n");
return false;
}
for(i=0; i<16; i++)
availableMcsRate[i] = pMCSRateSet[i] & pMCSFilter[i];
for(i = 0; i < 16; i++)
{
if(availableMcsRate[i] != 0)
break;
}
if(i == 16)
return false;
for(i = 0; i < 16; i++)
{
if(availableMcsRate[i] != 0)
{
bitMap = availableMcsRate[i];
for(j = 0; j < 8; j++)
{
if((bitMap%2) != 0)
{
if(HTMcsToDataRate(ieee, (8*i+j)) > HTMcsToDataRate(ieee, mcsRate))
mcsRate = (8*i+j);
}
bitMap = bitMap>>1;
}
}
}
return (mcsRate|0x80);
}
/*
**
**1.Filter our operation rate set with AP's rate set
**2.shall reference channel bandwidth, STBC, Antenna number
**3.generate rate adative table for firmware
**David 20060906
**
** \pHTSupportedCap: the connected STA's supported rate Capability element
*/
u8 HTFilterMCSRate( struct ieee80211_device* ieee, u8* pSupportMCS, u8* pOperateMCS)
{
u8 i=0;
// filter out operational rate set not supported by AP, the lenth of it is 16
for(i=0;i<=15;i++){
pOperateMCS[i] = ieee->Regdot11HTOperationalRateSet[i]&pSupportMCS[i];
}
// TODO: adjust our operational rate set according to our channel bandwidth, STBC and Antenna number
// TODO: fill suggested rate adaptive rate index and give firmware info using Tx command packet
// we also shall suggested the first start rate set according to our singal strength
HT_PickMCSRate(ieee, pOperateMCS);
// For RTL819X, if pairwisekey = wep/tkip, we support only MCS0~7.
if(ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))
pOperateMCS[1] = 0;
//
// For RTL819X, we support only MCS0~15.
// And also, we do not know how to use MCS32 now.
//
for(i=2; i<=15; i++)
pOperateMCS[i] = 0;
return true;
}
void HTSetConnectBwMode(struct ieee80211_device* ieee, HT_CHANNEL_WIDTH Bandwidth, HT_EXTCHNL_OFFSET Offset);
void HTOnAssocRsp(struct ieee80211_device *ieee)
{
PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
PHT_CAPABILITY_ELE pPeerHTCap = NULL;
PHT_INFORMATION_ELE pPeerHTInfo = NULL;
u16 nMaxAMSDUSize = 0;
u8* pMcsFilter = NULL;
static u8 EWC11NHTCap[] = {0x00, 0x90, 0x4c, 0x33}; // For 11n EWC definition, 2007.07.17, by Emily
static u8 EWC11NHTInfo[] = {0x00, 0x90, 0x4c, 0x34}; // For 11n EWC definition, 2007.07.17, by Emily
if( pHTInfo->bCurrentHTSupport == false )
{
IEEE80211_DEBUG(IEEE80211_DL_ERR, "<=== HTOnAssocRsp(): HT_DISABLE\n");
return;
}
IEEE80211_DEBUG(IEEE80211_DL_HT, "===> HTOnAssocRsp_wq(): HT_ENABLE\n");
// IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA, pHTInfo->PeerHTCapBuf, sizeof(HT_CAPABILITY_ELE));
// IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA, pHTInfo->PeerHTInfoBuf, sizeof(HT_INFORMATION_ELE));
// HTDebugHTCapability(pHTInfo->PeerHTCapBuf,"HTOnAssocRsp_wq");
// HTDebugHTInfo(pHTInfo->PeerHTInfoBuf,"HTOnAssocRsp_wq");
//
if(!memcmp(pHTInfo->PeerHTCapBuf,EWC11NHTCap, sizeof(EWC11NHTCap)))
pPeerHTCap = (PHT_CAPABILITY_ELE)(&pHTInfo->PeerHTCapBuf[4]);
else
pPeerHTCap = (PHT_CAPABILITY_ELE)(pHTInfo->PeerHTCapBuf);
if(!memcmp(pHTInfo->PeerHTInfoBuf, EWC11NHTInfo, sizeof(EWC11NHTInfo)))
pPeerHTInfo = (PHT_INFORMATION_ELE)(&pHTInfo->PeerHTInfoBuf[4]);
else
pPeerHTInfo = (PHT_INFORMATION_ELE)(pHTInfo->PeerHTInfoBuf);
////////////////////////////////////////////////////////
// Configurations:
////////////////////////////////////////////////////////
IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA|IEEE80211_DL_HT, pPeerHTCap, sizeof(HT_CAPABILITY_ELE));
// IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA|IEEE80211_DL_HT, pPeerHTInfo, sizeof(HT_INFORMATION_ELE));
// Config Supported Channel Width setting
//
HTSetConnectBwMode(ieee, (HT_CHANNEL_WIDTH)(pPeerHTCap->ChlWidth), (HT_EXTCHNL_OFFSET)(pPeerHTInfo->ExtChlOffset));
// if(pHTInfo->bCurBW40MHz == true)
pHTInfo->bCurTxBW40MHz = ((pPeerHTInfo->RecommemdedTxWidth == 1)?true:false);
//
// Update short GI/ long GI setting
//
// TODO:
pHTInfo->bCurShortGI20MHz=
((pHTInfo->bRegShortGI20MHz)?((pPeerHTCap->ShortGI20Mhz==1)?true:false):false);
pHTInfo->bCurShortGI40MHz=
((pHTInfo->bRegShortGI40MHz)?((pPeerHTCap->ShortGI40Mhz==1)?true:false):false);
//
// Config TX STBC setting
//
// TODO:
//
// Config DSSS/CCK mode in 40MHz mode
//
// TODO:
pHTInfo->bCurSuppCCK =
((pHTInfo->bRegSuppCCK)?((pPeerHTCap->DssCCk==1)?true:false):false);
//
// Config and configure A-MSDU setting
//
pHTInfo->bCurrent_AMSDU_Support = pHTInfo->bAMSDU_Support;
nMaxAMSDUSize = (pPeerHTCap->MaxAMSDUSize==0)?3839:7935;
if(pHTInfo->nAMSDU_MaxSize > nMaxAMSDUSize )
pHTInfo->nCurrent_AMSDU_MaxSize = nMaxAMSDUSize;
else
pHTInfo->nCurrent_AMSDU_MaxSize = pHTInfo->nAMSDU_MaxSize;
//
// Config A-MPDU setting
//
pHTInfo->bCurrentAMPDUEnable = pHTInfo->bAMPDUEnable;
// <1> Decide AMPDU Factor
// By Emily
if(!pHTInfo->bRegRT2RTAggregation)
{
// Decide AMPDU Factor according to protocol handshake
if(pHTInfo->AMPDU_Factor > pPeerHTCap->MaxRxAMPDUFactor)
pHTInfo->CurrentAMPDUFactor = pPeerHTCap->MaxRxAMPDUFactor;
else
pHTInfo->CurrentAMPDUFactor = pHTInfo->AMPDU_Factor;
}else
{
// Set MPDU density to 2 to Realtek AP, and set it to 0 for others
// Replace MPDU factor declared in original association response frame format. 2007.08.20 by Emily
if (ieee->current_network.bssht.bdRT2RTAggregation)
{
if( ieee->pairwise_key_type != KEY_TYPE_NA)
// Realtek may set 32k in security mode and 64k for others
pHTInfo->CurrentAMPDUFactor = pPeerHTCap->MaxRxAMPDUFactor;
else
pHTInfo->CurrentAMPDUFactor = HT_AGG_SIZE_64K;
}else
{
if(pPeerHTCap->MaxRxAMPDUFactor < HT_AGG_SIZE_32K)
pHTInfo->CurrentAMPDUFactor = pPeerHTCap->MaxRxAMPDUFactor;
else
pHTInfo->CurrentAMPDUFactor = HT_AGG_SIZE_32K;
}
}
// <2> Set AMPDU Minimum MPDU Start Spacing
// 802.11n 3.0 section 9.7d.3
if(pHTInfo->MPDU_Density > pPeerHTCap->MPDUDensity)
pHTInfo->CurrentMPDUDensity = pHTInfo->MPDU_Density;
else
pHTInfo->CurrentMPDUDensity = pPeerHTCap->MPDUDensity;
if(ieee->pairwise_key_type != KEY_TYPE_NA )
pHTInfo->CurrentMPDUDensity = 7; // 8us
// Force TX AMSDU
// Lanhsin: mark for tmp to avoid deauth by ap from s3
//if(memcmp(pMgntInfo->Bssid, NETGEAR834Bv2_BROADCOM, 3)==0)
if(0)
{
pHTInfo->bCurrentAMPDUEnable = false;
pHTInfo->ForcedAMSDUMode = HT_AGG_FORCE_ENABLE;
pHTInfo->ForcedAMSDUMaxSize = 7935;
pHTInfo->IOTAction |= HT_IOT_ACT_TX_USE_AMSDU_8K;
}
// Rx Reorder Setting
pHTInfo->bCurRxReorderEnable = pHTInfo->bRegRxReorderEnable;
//
// Filter out unsupported HT rate for this AP
// Update RATR table
// This is only for 8190 ,8192 or later product which using firmware to handle rate adaptive mechanism.
//
// Handle Ralink AP bad MCS rate set condition. Joseph.
// This fix the bug of Ralink AP. This may be removed in the future.
if(pPeerHTCap->MCS[0] == 0)
pPeerHTCap->MCS[0] = 0xff;
HTFilterMCSRate(ieee, pPeerHTCap->MCS, ieee->dot11HTOperationalRateSet);
//
// Config MIMO Power Save setting
//
pHTInfo->PeerMimoPs = pPeerHTCap->MimoPwrSave;
if(pHTInfo->PeerMimoPs == MIMO_PS_STATIC)
pMcsFilter = MCS_FILTER_1SS;
else
pMcsFilter = MCS_FILTER_ALL;
//WB add for MCS8 bug
// pMcsFilter = MCS_FILTER_1SS;
ieee->HTHighestOperaRate = HTGetHighestMCSRate(ieee, ieee->dot11HTOperationalRateSet, pMcsFilter);
ieee->HTCurrentOperaRate = ieee->HTHighestOperaRate;
//
// Config current operation mode.
//
pHTInfo->CurrentOpMode = pPeerHTInfo->OptMode;
}
void HTSetConnectBwModeCallback(struct ieee80211_device* ieee);
/********************************************************************************************************************
*function: initialize HT info(struct PRT_HIGH_THROUGHPUT)
* input: struct ieee80211_device* ieee
* output: none
* return: none
* notice: This function is called when * (1) MPInitialization Phase * (2) Receiving of Deauthentication from AP
********************************************************************************************************************/
// TODO: Should this funciton be called when receiving of Disassociation?
void HTInitializeHTInfo(struct ieee80211_device* ieee)
{
PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
//
// These parameters will be reset when receiving deauthentication packet
//
IEEE80211_DEBUG(IEEE80211_DL_HT, "===========>%s()\n", __FUNCTION__);
pHTInfo->bCurrentHTSupport = false;
// 40MHz channel support
pHTInfo->bCurBW40MHz = false;
pHTInfo->bCurTxBW40MHz = false;
// Short GI support
pHTInfo->bCurShortGI20MHz = false;
pHTInfo->bCurShortGI40MHz = false;
pHTInfo->bForcedShortGI = false;
// CCK rate support
// This flag is set to true to support CCK rate by default.
// It will be affected by "pHTInfo->bRegSuppCCK" and AP capabilities only when associate to
// 11N BSS.
pHTInfo->bCurSuppCCK = true;
// AMSDU related
pHTInfo->bCurrent_AMSDU_Support = false;
pHTInfo->nCurrent_AMSDU_MaxSize = pHTInfo->nAMSDU_MaxSize;
// AMPUD related
pHTInfo->CurrentMPDUDensity = pHTInfo->MPDU_Density;
pHTInfo->CurrentAMPDUFactor = pHTInfo->AMPDU_Factor;
// Initialize all of the parameters related to 11n
memset((void*)(&(pHTInfo->SelfHTCap)), 0, sizeof(pHTInfo->SelfHTCap));
memset((void*)(&(pHTInfo->SelfHTInfo)), 0, sizeof(pHTInfo->SelfHTInfo));
memset((void*)(&(pHTInfo->PeerHTCapBuf)), 0, sizeof(pHTInfo->PeerHTCapBuf));
memset((void*)(&(pHTInfo->PeerHTInfoBuf)), 0, sizeof(pHTInfo->PeerHTInfoBuf));
pHTInfo->bSwBwInProgress = false;
pHTInfo->ChnlOp = CHNLOP_NONE;
// Set default IEEE spec for Draft N
pHTInfo->ePeerHTSpecVer = HT_SPEC_VER_IEEE;
// Realtek proprietary aggregation mode
pHTInfo->bCurrentRT2RTAggregation = false;
pHTInfo->bCurrentRT2RTLongSlotTime = false;
pHTInfo->IOTPeer = 0;
pHTInfo->IOTAction = 0;
//MCS rate initialized here
{
u8* RegHTSuppRateSets = &(ieee->RegHTSuppRateSet[0]);
RegHTSuppRateSets[0] = 0xFF; //support MCS 0~7
RegHTSuppRateSets[1] = 0xFF; //support MCS 8~15
RegHTSuppRateSets[4] = 0x01; //support MCS 32
}
}
/********************************************************************************************************************
*function: initialize Bss HT structure(struct PBSS_HT)
* input: PBSS_HT pBssHT //to be initialized
* output: none
* return: none
* notice: This function is called when initialize network structure
********************************************************************************************************************/
void HTInitializeBssDesc(PBSS_HT pBssHT)
{
pBssHT->bdSupportHT = false;
memset(pBssHT->bdHTCapBuf, 0, sizeof(pBssHT->bdHTCapBuf));
pBssHT->bdHTCapLen = 0;
memset(pBssHT->bdHTInfoBuf, 0, sizeof(pBssHT->bdHTInfoBuf));
pBssHT->bdHTInfoLen = 0;
pBssHT->bdHTSpecVer= HT_SPEC_VER_IEEE;
pBssHT->bdRT2RTAggregation = false;
pBssHT->bdRT2RTLongSlotTime = false;
}
/********************************************************************************************************************
*function: initialize Bss HT structure(struct PBSS_HT)
* input: struct ieee80211_device *ieee
* struct ieee80211_network *pNetwork //usually current network we are live in
* output: none
* return: none
* notice: This function should ONLY be called before association
********************************************************************************************************************/
void HTResetSelfAndSavePeerSetting(struct ieee80211_device* ieee, struct ieee80211_network * pNetwork)
{
PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
// u16 nMaxAMSDUSize;
// PHT_CAPABILITY_ELE pPeerHTCap = (PHT_CAPABILITY_ELE)pNetwork->bssht.bdHTCapBuf;
// PHT_INFORMATION_ELE pPeerHTInfo = (PHT_INFORMATION_ELE)pNetwork->bssht.bdHTInfoBuf;
// u8* pMcsFilter;
u8 bIOTAction = 0;
//
// Save Peer Setting before Association
//
IEEE80211_DEBUG(IEEE80211_DL_HT, "==============>%s()\n", __FUNCTION__);
/*unmark bEnableHT flag here is the same reason why unmarked in function ieee80211_softmac_new_net. WB 2008.09.10*/
// if( pHTInfo->bEnableHT && pNetwork->bssht.bdSupportHT)
if (pNetwork->bssht.bdSupportHT)
{
pHTInfo->bCurrentHTSupport = true;
pHTInfo->ePeerHTSpecVer = pNetwork->bssht.bdHTSpecVer;
// Save HTCap and HTInfo information Element
if(pNetwork->bssht.bdHTCapLen > 0 && pNetwork->bssht.bdHTCapLen <= sizeof(pHTInfo->PeerHTCapBuf))
memcpy(pHTInfo->PeerHTCapBuf, pNetwork->bssht.bdHTCapBuf, pNetwork->bssht.bdHTCapLen);
if(pNetwork->bssht.bdHTInfoLen > 0 && pNetwork->bssht.bdHTInfoLen <= sizeof(pHTInfo->PeerHTInfoBuf))
memcpy(pHTInfo->PeerHTInfoBuf, pNetwork->bssht.bdHTInfoBuf, pNetwork->bssht.bdHTInfoLen);
// Check whether RT to RT aggregation mode is enabled
if(pHTInfo->bRegRT2RTAggregation)
{
pHTInfo->bCurrentRT2RTAggregation = pNetwork->bssht.bdRT2RTAggregation;
pHTInfo->bCurrentRT2RTLongSlotTime = pNetwork->bssht.bdRT2RTLongSlotTime;
}
else
{
pHTInfo->bCurrentRT2RTAggregation = false;
pHTInfo->bCurrentRT2RTLongSlotTime = false;
}
// Determine the IOT Peer Vendor.
HTIOTPeerDetermine(ieee);
// Decide IOT Action
// Must be called after the parameter of pHTInfo->bCurrentRT2RTAggregation is decided
pHTInfo->IOTAction = 0;
bIOTAction = HTIOTActIsDisableMCS14(ieee, pNetwork->bssid);
if(bIOTAction)
pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_MCS14;
bIOTAction = HTIOTActIsDisableMCS15(ieee);
if(bIOTAction)
pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_MCS15;
bIOTAction = HTIOTActIsDisableMCSTwoSpatialStream(ieee, pNetwork->bssid);
if(bIOTAction)
pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_ALL_2SS;
bIOTAction = HTIOTActIsDisableEDCATurbo(ieee, pNetwork->bssid);
if(bIOTAction)
pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_EDCA_TURBO;
bIOTAction = HTIOTActIsMgntUseCCK6M(pNetwork);
if(bIOTAction)
pHTInfo->IOTAction |= HT_IOT_ACT_MGNT_USE_CCK_6M;
bIOTAction = HTIOTActIsCCDFsync(pNetwork->bssid);
if(bIOTAction)
pHTInfo->IOTAction |= HT_IOT_ACT_CDD_FSYNC;
}
else
{
pHTInfo->bCurrentHTSupport = false;
pHTInfo->bCurrentRT2RTAggregation = false;
pHTInfo->bCurrentRT2RTLongSlotTime = false;
pHTInfo->IOTAction = 0;
}
}
void HTUpdateSelfAndPeerSetting(struct ieee80211_device* ieee, struct ieee80211_network * pNetwork)
{
PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
// PHT_CAPABILITY_ELE pPeerHTCap = (PHT_CAPABILITY_ELE)pNetwork->bssht.bdHTCapBuf;
PHT_INFORMATION_ELE pPeerHTInfo = (PHT_INFORMATION_ELE)pNetwork->bssht.bdHTInfoBuf;
if(pHTInfo->bCurrentHTSupport)
{
//
// Config current operation mode.
//
if(pNetwork->bssht.bdHTInfoLen != 0)
pHTInfo->CurrentOpMode = pPeerHTInfo->OptMode;
//
// <TODO: Config according to OBSS non-HT STA present!!>
//
}
}
void HTUseDefaultSetting(struct ieee80211_device* ieee)
{
PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
// u8 regBwOpMode;
if(pHTInfo->bEnableHT)
{
pHTInfo->bCurrentHTSupport = true;
pHTInfo->bCurSuppCCK = pHTInfo->bRegSuppCCK;
pHTInfo->bCurBW40MHz = pHTInfo->bRegBW40MHz;
pHTInfo->bCurShortGI20MHz= pHTInfo->bRegShortGI20MHz;
pHTInfo->bCurShortGI40MHz= pHTInfo->bRegShortGI40MHz;
pHTInfo->bCurrent_AMSDU_Support = pHTInfo->bAMSDU_Support;
pHTInfo->nCurrent_AMSDU_MaxSize = pHTInfo->nAMSDU_MaxSize;
pHTInfo->bCurrentAMPDUEnable = pHTInfo->bAMPDUEnable;
pHTInfo->CurrentAMPDUFactor = pHTInfo->AMPDU_Factor;
pHTInfo->CurrentMPDUDensity = pHTInfo->CurrentMPDUDensity;
// Set BWOpMode register
//update RATR index0
HTFilterMCSRate(ieee, ieee->Regdot11HTOperationalRateSet, ieee->dot11HTOperationalRateSet);
//function below is not implemented at all. WB
#ifdef TODO
Adapter->HalFunc.InitHalRATRTableHandler( Adapter, &pMgntInfo->dot11OperationalRateSet, pMgntInfo->dot11HTOperationalRateSet);
#endif
ieee->HTHighestOperaRate = HTGetHighestMCSRate(ieee, ieee->dot11HTOperationalRateSet, MCS_FILTER_ALL);
ieee->HTCurrentOperaRate = ieee->HTHighestOperaRate;
}
else
{
pHTInfo->bCurrentHTSupport = false;
}
return;
}
/********************************************************************************************************************
*function: check whether HT control field exists
* input: struct ieee80211_device *ieee
* u8* pFrame //coming skb->data
* output: none
* return: return true if HT control field exists(false otherwise)
* notice:
********************************************************************************************************************/
u8 HTCCheck(struct ieee80211_device* ieee, u8* pFrame)
{
if(ieee->pHTInfo->bCurrentHTSupport)
{
if( (IsQoSDataFrame(pFrame) && Frame_Order(pFrame)) == 1)
{
IEEE80211_DEBUG(IEEE80211_DL_HT, "HT CONTROL FILED EXIST!!\n");
return true;
}
}
return false;
}
//
// This function set bandwidth mode in protocol layer.
//
void HTSetConnectBwMode(struct ieee80211_device* ieee, HT_CHANNEL_WIDTH Bandwidth, HT_EXTCHNL_OFFSET Offset)
{
PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
// u32 flags = 0;
if(pHTInfo->bRegBW40MHz == false)
return;
// To reduce dummy operation
// if((pHTInfo->bCurBW40MHz==false && Bandwidth==HT_CHANNEL_WIDTH_20) ||
// (pHTInfo->bCurBW40MHz==true && Bandwidth==HT_CHANNEL_WIDTH_20_40 && Offset==pHTInfo->CurSTAExtChnlOffset))
// return;
// spin_lock_irqsave(&(ieee->bw_spinlock), flags);
if(pHTInfo->bSwBwInProgress) {
// spin_unlock_irqrestore(&(ieee->bw_spinlock), flags);
return;
}
//if in half N mode, set to 20M bandwidth please 09.08.2008 WB.
if(Bandwidth==HT_CHANNEL_WIDTH_20_40 && (!ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev)))
{
// Handle Illegal extention channel offset!!
if(ieee->current_network.channel<2 && Offset==HT_EXTCHNL_OFFSET_LOWER)
Offset = HT_EXTCHNL_OFFSET_NO_EXT;
if(Offset==HT_EXTCHNL_OFFSET_UPPER || Offset==HT_EXTCHNL_OFFSET_LOWER) {
pHTInfo->bCurBW40MHz = true;
pHTInfo->CurSTAExtChnlOffset = Offset;
} else {
pHTInfo->bCurBW40MHz = false;
pHTInfo->CurSTAExtChnlOffset = HT_EXTCHNL_OFFSET_NO_EXT;
}
} else {
pHTInfo->bCurBW40MHz = false;
pHTInfo->CurSTAExtChnlOffset = HT_EXTCHNL_OFFSET_NO_EXT;
}
pHTInfo->bSwBwInProgress = true;
// TODO: 2007.7.13 by Emily Wait 2000ms in order to garantee that switching
// bandwidth is executed after scan is finished. It is a temporal solution
// because software should ganrantee the last operation of switching bandwidth
// is executed properlly.
HTSetConnectBwModeCallback(ieee);
// spin_unlock_irqrestore(&(ieee->bw_spinlock), flags);
}
void HTSetConnectBwModeCallback(struct ieee80211_device* ieee)
{
PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
IEEE80211_DEBUG(IEEE80211_DL_HT, "======>%s()\n", __FUNCTION__);
if(pHTInfo->bCurBW40MHz)
{
if(pHTInfo->CurSTAExtChnlOffset==HT_EXTCHNL_OFFSET_UPPER)
ieee->set_chan(ieee->dev, ieee->current_network.channel+2);
else if(pHTInfo->CurSTAExtChnlOffset==HT_EXTCHNL_OFFSET_LOWER)
ieee->set_chan(ieee->dev, ieee->current_network.channel-2);
else
ieee->set_chan(ieee->dev, ieee->current_network.channel);
ieee->SetBWModeHandler(ieee->dev, HT_CHANNEL_WIDTH_20_40, pHTInfo->CurSTAExtChnlOffset);
} else {
ieee->set_chan(ieee->dev, ieee->current_network.channel);
ieee->SetBWModeHandler(ieee->dev, HT_CHANNEL_WIDTH_20, HT_EXTCHNL_OFFSET_NO_EXT);
}
pHTInfo->bSwBwInProgress = false;
}
EXPORT_SYMBOL(HTUpdateSelfAndPeerSetting);