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android-kvm / linux / 988f01683c7f2bf9f8fe2bae1cf4010fcd1baaf5 / . / drivers / staging / rtl8192u / ieee80211 / rtl819x_HTProc.c
blob: dba3f2db9f48e4d67619aa739164969dbf3e2c75 [file] [log] [blame]
// SPDX-License-Identifier: GPL-2.0
/*
* 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"
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. Should 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;
/*
* 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
struct ht_capability_ele *pCapELE;
if (!memcmp(CapIE, EWC11NHTCap, sizeof(EWC11NHTCap))) {
//EWC IE
IEEE80211_DEBUG(IEEE80211_DL_HT, "EWC IE in %s()\n", __func__);
pCapELE = (struct ht_capability_ele *)(&CapIE[4]);
} else {
pCapELE = (struct ht_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]);
}
/*
*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", __func__);
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, "\tSecondary 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]);
}
static 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:
*/
static 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)
*/
static u8 HTIOTActIsDisableMCS14(struct ieee80211_device *ieee, u8 *PeerMacAddr)
{
return 0;
}
/*
* Function: HTIOTActIsDisableMCS15
*
* Overview: Check whether driver should declare capability of receiving
* MCS15
*
* Input:
* PADAPTER Adapter,
*
* Output: None
* Return: true if driver should disable MCS15
* 2008.04.15 Emily
*/
static 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 receiving
* All 2 ss packets
*
* Input:
* PADAPTER Adapter,
*
* Output: None
* Return: true if driver should disable all two spatial stream packet
* 2008.04.21 Emily
*/
static bool HTIOTActIsDisableMCSTwoSpatialStream(struct ieee80211_device *ieee,
u8 *PeerMacAddr)
{
#ifdef TODO
// Apply for 819u only
#endif
return false;
}
/*
*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)
*/
static u8 HTIOTActIsDisableEDCATurbo(struct ieee80211_device *ieee,
u8 *PeerMacAddr)
{ /* default enable EDCA Turbo mode. */
return false;
}
/*
*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
*/
static 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;
}
static 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;
struct ht_capability_ele *pCapELE = NULL;
//u8 bIsDeclareMCS13;
if (!posHTCap || !pHT) {
IEEE80211_DEBUG(IEEE80211_DL_ERR,
"posHTCap or pHTInfo can't be null in %s\n",
__func__);
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 = (struct ht_capability_ele *)&posHTCap[4];
} else {
pCapELE = (struct ht_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()");
}
/*
*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 || !pHTInfoEle) {
IEEE80211_DEBUG(IEEE80211_DL_ERR,
"posHTInfo or pHTInfoEle can't be null in %s\n",
__func__);
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) ? 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");
}
/*
* 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) {
IEEE80211_DEBUG(IEEE80211_DL_ERR,
"posRT2RTAgg can't be null in %s\n",
__func__);
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:
*/
static u8 HT_PickMCSRate(struct ieee80211_device *ieee, u8 *pOperateMCS)
{
if (!pOperateMCS) {
IEEE80211_DEBUG(IEEE80211_DL_ERR,
"pOperateMCS can't be null in %s\n",
__func__);
return false;
}
switch (ieee->mode) {
case IEEE_A:
case IEEE_B:
case IEEE_G:
//legacy rate routine handled at selectedrate
//no MCS rate
memset(pOperateMCS, 0, 16);
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 || !pMCSFilter) {
IEEE80211_DEBUG(IEEE80211_DL_ERR,
"pMCSRateSet or pMCSFilter can't be null in %s\n",
__func__);
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 >>= 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
*/
static u8 HTFilterMCSRate(struct ieee80211_device *ieee, u8 *pSupportMCS,
u8 *pOperateMCS)
{
u8 i = 0;
// filter out operational rate set not supported by AP, the length 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 signal 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 HTOnAssocRsp(struct ieee80211_device *ieee)
{
PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
struct ht_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) {
IEEE80211_DEBUG(IEEE80211_DL_ERR,
"<=== %s: HT_DISABLE\n",
__func__);
return;
}
IEEE80211_DEBUG(IEEE80211_DL_HT, "===> HTOnAssocRsp_wq(): HT_ENABLE\n");
// IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA, pHTInfo->PeerHTCapBuf, sizeof(struct 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 = (struct ht_capability_ele *)(&pHTInfo->PeerHTCapBuf[4]);
else
pPeerHTCap = (struct ht_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(struct ht_capability_ele));
// IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA|IEEE80211_DL_HT, pPeerHTInfo, sizeof(HT_INFORMATION_ELE));
// Config Supported Channel Width setting
//
HTSetConnectBwMode(ieee, (enum ht_channel_width)(pPeerHTCap->ChlWidth), (enum ht_extension_chan_offset)(pPeerHTInfo->ExtChlOffset));
pHTInfo->bCurTxBW40MHz = (pPeerHTInfo->RecommemdedTxWidth == 1);
/*
* Update short GI/ long GI setting
*
* TODO:
*/
pHTInfo->bCurShortGI20MHz = pHTInfo->bRegShortGI20MHz &&
(pPeerHTCap->ShortGI20Mhz == 1);
pHTInfo->bCurShortGI40MHz = pHTInfo->bRegShortGI40MHz &&
(pPeerHTCap->ShortGI40Mhz == 1);
/*
* Config TX STBC setting
*
* TODO:
*/
/*
* Config DSSS/CCK mode in 40MHz mode
*
* TODO:
*/
pHTInfo->bCurSuppCCK = pHTInfo->bRegSuppCCK &&
(pPeerHTCap->DssCCk == 1);
/*
* 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;
}
/*
*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", __func__);
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(&pHTInfo->SelfHTCap, 0, sizeof(pHTInfo->SelfHTCap));
memset(&pHTInfo->SelfHTInfo, 0, sizeof(pHTInfo->SelfHTInfo));
memset(&pHTInfo->PeerHTCapBuf, 0, sizeof(pHTInfo->PeerHTCapBuf));
memset(&pHTInfo->PeerHTInfoBuf, 0, sizeof(pHTInfo->PeerHTInfoBuf));
pHTInfo->bSwBwInProgress = false;
// 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;
// struct ht_capability_ele *pPeerHTCap = (struct ht_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", __func__);
/*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;
// struct ht_capability_ele *pPeerHTCap = (struct ht_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!!>
*/
}
}
EXPORT_SYMBOL(HTUpdateSelfAndPeerSetting);
/*
*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;
}
static void HTSetConnectBwModeCallback(struct ieee80211_device *ieee)
{
PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
IEEE80211_DEBUG(IEEE80211_DL_HT, "======>%s()\n", __func__);
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;
}
/*
* This function set bandwidth mode in protocol layer.
*/
void HTSetConnectBwMode(struct ieee80211_device *ieee, enum ht_channel_width Bandwidth, enum ht_extension_chan_offset Offset)
{
PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
// u32 flags = 0;
if (!pHTInfo->bRegBW40MHz)
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 extension 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 guarantee 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);
}