/*
*************************************************************************
* Ralink Tech Inc.
* 5F., No.36, Taiyuan St., Jhubei City,
* Hsinchu County 302,
* Taiwan, R.O.C.
*
* (c) Copyright 2002-2007, Ralink Technology, Inc.
*
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
* *
*************************************************************************
*/
/*
All functions in this file must be USB-depended, or you should out your function
in other files.
*/
#ifdef RTMP_MAC_USB
#include "../rt_config.h"
/*
We can do copy the frame into pTxContext when match following conditions.
=>
=>
=>
*/
static inline int RtmpUSBCanDoWrite(struct rt_rtmp_adapter *pAd,
u8 QueIdx,
struct rt_ht_tx_context *pHTTXContext)
{
int canWrite = NDIS_STATUS_RESOURCES;
if (((pHTTXContext->CurWritePosition) <
pHTTXContext->NextBulkOutPosition)
&& (pHTTXContext->CurWritePosition + LOCAL_TXBUF_SIZE) >
pHTTXContext->NextBulkOutPosition) {
DBGPRINT(RT_DEBUG_ERROR, ("RtmpUSBCanDoWrite c1!\n"));
RTUSB_SET_BULK_FLAG(pAd,
(fRTUSB_BULK_OUT_DATA_NORMAL << QueIdx));
} else if ((pHTTXContext->CurWritePosition == 8)
&& (pHTTXContext->NextBulkOutPosition < LOCAL_TXBUF_SIZE)) {
DBGPRINT(RT_DEBUG_ERROR, ("RtmpUSBCanDoWrite c2!\n"));
RTUSB_SET_BULK_FLAG(pAd,
(fRTUSB_BULK_OUT_DATA_NORMAL << QueIdx));
} else if (pHTTXContext->bCurWriting == TRUE) {
DBGPRINT(RT_DEBUG_ERROR, ("RtmpUSBCanDoWrite c3!\n"));
} else {
canWrite = NDIS_STATUS_SUCCESS;
}
return canWrite;
}
u16 RtmpUSB_WriteSubTxResource(struct rt_rtmp_adapter *pAd,
struct rt_tx_blk *pTxBlk,
IN BOOLEAN bIsLast, u16 * FreeNumber)
{
/* Dummy function. Should be removed in the future. */
return 0;
}
u16 RtmpUSB_WriteFragTxResource(struct rt_rtmp_adapter *pAd,
struct rt_tx_blk *pTxBlk,
u8 fragNum, u16 * FreeNumber)
{
struct rt_ht_tx_context *pHTTXContext;
u16 hwHdrLen; /* The hwHdrLen consist of 802.11 header length plus the header padding length. */
u32 fillOffset;
struct rt_txinfo *pTxInfo;
struct rt_txwi *pTxWI;
u8 *pWirelessPacket = NULL;
u8 QueIdx;
int Status;
unsigned long IrqFlags;
u32 USBDMApktLen = 0, DMAHdrLen, padding;
BOOLEAN TxQLastRound = FALSE;
/* */
/* get Tx Ring Resource & Dma Buffer address */
/* */
QueIdx = pTxBlk->QueIdx;
pHTTXContext = &pAd->TxContext[QueIdx];
RTMP_IRQ_LOCK(&pAd->TxContextQueueLock[QueIdx], IrqFlags);
pHTTXContext = &pAd->TxContext[QueIdx];
fillOffset = pHTTXContext->CurWritePosition;
if (fragNum == 0) {
/* Check if we have enough space for this bulk-out batch. */
Status = RtmpUSBCanDoWrite(pAd, QueIdx, pHTTXContext);
if (Status == NDIS_STATUS_SUCCESS) {
pHTTXContext->bCurWriting = TRUE;
/* Reserve space for 8 bytes padding. */
if ((pHTTXContext->ENextBulkOutPosition ==
pHTTXContext->CurWritePosition)) {
pHTTXContext->ENextBulkOutPosition += 8;
pHTTXContext->CurWritePosition += 8;
fillOffset += 8;
}
pTxBlk->Priv = 0;
pHTTXContext->CurWriteRealPos =
pHTTXContext->CurWritePosition;
} else {
RTMP_IRQ_UNLOCK(&pAd->TxContextQueueLock[QueIdx],
IrqFlags);
RELEASE_NDIS_PACKET(pAd, pTxBlk->pPacket,
NDIS_STATUS_FAILURE);
return (Status);
}
} else {
/* For sub-sequent frames of this bulk-out batch. Just copy it to our bulk-out buffer. */
Status =
((pHTTXContext->bCurWriting ==
TRUE) ? NDIS_STATUS_SUCCESS : NDIS_STATUS_FAILURE);
if (Status == NDIS_STATUS_SUCCESS) {
fillOffset += pTxBlk->Priv;
} else {
RTMP_IRQ_UNLOCK(&pAd->TxContextQueueLock[QueIdx],
IrqFlags);
RELEASE_NDIS_PACKET(pAd, pTxBlk->pPacket,
NDIS_STATUS_FAILURE);
return (Status);
}
}
NdisZeroMemory((u8 *)(&pTxBlk->HeaderBuf[0]), TXINFO_SIZE);
pTxInfo = (struct rt_txinfo *)(&pTxBlk->HeaderBuf[0]);
pTxWI = (struct rt_txwi *) (&pTxBlk->HeaderBuf[TXINFO_SIZE]);
pWirelessPacket =
&pHTTXContext->TransferBuffer->field.WirelessPacket[fillOffset];
/* copy TXWI + WLAN Header + LLC into DMA Header Buffer */
/*hwHdrLen = ROUND_UP(pTxBlk->MpduHeaderLen, 4); */
hwHdrLen = pTxBlk->MpduHeaderLen + pTxBlk->HdrPadLen;
/* Build our URB for USBD */
DMAHdrLen = TXWI_SIZE + hwHdrLen;
USBDMApktLen = DMAHdrLen + pTxBlk->SrcBufLen;
padding = (4 - (USBDMApktLen % 4)) & 0x03; /* round up to 4 byte alignment */
USBDMApktLen += padding;
pTxBlk->Priv += (TXINFO_SIZE + USBDMApktLen);
/* For TxInfo, the length of USBDMApktLen = TXWI_SIZE + 802.11 header + payload */
RTMPWriteTxInfo(pAd, pTxInfo, (u16)(USBDMApktLen), FALSE, FIFO_EDCA,
FALSE /*NextValid */ , FALSE);
if (fragNum == pTxBlk->TotalFragNum) {
pTxInfo->USBDMATxburst = 0;
if ((pHTTXContext->CurWritePosition + pTxBlk->Priv + 3906) >
MAX_TXBULK_LIMIT) {
pTxInfo->SwUseLastRound = 1;
TxQLastRound = TRUE;
}
} else {
pTxInfo->USBDMATxburst = 1;
}
NdisMoveMemory(pWirelessPacket, pTxBlk->HeaderBuf,
TXINFO_SIZE + TXWI_SIZE + hwHdrLen);
pWirelessPacket += (TXINFO_SIZE + TXWI_SIZE + hwHdrLen);
pHTTXContext->CurWriteRealPos += (TXINFO_SIZE + TXWI_SIZE + hwHdrLen);
RTMP_IRQ_UNLOCK(&pAd->TxContextQueueLock[QueIdx], IrqFlags);
NdisMoveMemory(pWirelessPacket, pTxBlk->pSrcBufData, pTxBlk->SrcBufLen);
/* Zero the last padding. */
pWirelessPacket += pTxBlk->SrcBufLen;
NdisZeroMemory(pWirelessPacket, padding + 8);
if (fragNum == pTxBlk->TotalFragNum) {
RTMP_IRQ_LOCK(&pAd->TxContextQueueLock[QueIdx], IrqFlags);
/* Update the pHTTXContext->CurWritePosition. 3906 used to prevent the NextBulkOut is a A-RALINK/A-MSDU Frame. */
pHTTXContext->CurWritePosition += pTxBlk->Priv;
if (TxQLastRound == TRUE)
pHTTXContext->CurWritePosition = 8;
pHTTXContext->CurWriteRealPos = pHTTXContext->CurWritePosition;
/* Finally, set bCurWriting as FALSE */
pHTTXContext->bCurWriting = FALSE;
RTMP_IRQ_UNLOCK(&pAd->TxContextQueueLock[QueIdx], IrqFlags);
/* succeed and release the skb buffer */
RELEASE_NDIS_PACKET(pAd, pTxBlk->pPacket, NDIS_STATUS_SUCCESS);
}
return (Status);
}
u16 RtmpUSB_WriteSingleTxResource(struct rt_rtmp_adapter *pAd,
struct rt_tx_blk *pTxBlk,
IN BOOLEAN bIsLast,
u16 * FreeNumber)
{
struct rt_ht_tx_context *pHTTXContext;
u16 hwHdrLen;
u32 fillOffset;
struct rt_txinfo *pTxInfo;
struct rt_txwi *pTxWI;
u8 *pWirelessPacket;
u8 QueIdx;
unsigned long IrqFlags;
int Status;
u32 USBDMApktLen = 0, DMAHdrLen, padding;
BOOLEAN bTxQLastRound = FALSE;
/* For USB, didn't need PCI_MAP_SINGLE() */
/*SrcBufPA = PCI_MAP_SINGLE(pAd, (char *) pTxBlk->pSrcBufData, pTxBlk->SrcBufLen, PCI_DMA_TODEVICE); */
/* */
/* get Tx Ring Resource & Dma Buffer address */
/* */
QueIdx = pTxBlk->QueIdx;
RTMP_IRQ_LOCK(&pAd->TxContextQueueLock[QueIdx], IrqFlags);
pHTTXContext = &pAd->TxContext[QueIdx];
fillOffset = pHTTXContext->CurWritePosition;
/* Check ring full. */
Status = RtmpUSBCanDoWrite(pAd, QueIdx, pHTTXContext);
if (Status == NDIS_STATUS_SUCCESS) {
pHTTXContext->bCurWriting = TRUE;
pTxInfo = (struct rt_txinfo *)(&pTxBlk->HeaderBuf[0]);
pTxWI = (struct rt_txwi *) (&pTxBlk->HeaderBuf[TXINFO_SIZE]);
/* Reserve space for 8 bytes padding. */
if ((pHTTXContext->ENextBulkOutPosition ==
pHTTXContext->CurWritePosition)) {
pHTTXContext->ENextBulkOutPosition += 8;
pHTTXContext->CurWritePosition += 8;
fillOffset += 8;
}
pHTTXContext->CurWriteRealPos = pHTTXContext->CurWritePosition;
pWirelessPacket =
&pHTTXContext->TransferBuffer->field.
WirelessPacket[fillOffset];
/* copy TXWI + WLAN Header + LLC into DMA Header Buffer */
/*hwHdrLen = ROUND_UP(pTxBlk->MpduHeaderLen, 4); */
hwHdrLen = pTxBlk->MpduHeaderLen + pTxBlk->HdrPadLen;
/* Build our URB for USBD */
DMAHdrLen = TXWI_SIZE + hwHdrLen;
USBDMApktLen = DMAHdrLen + pTxBlk->SrcBufLen;
padding = (4 - (USBDMApktLen % 4)) & 0x03; /* round up to 4 byte alignment */
USBDMApktLen += padding;
pTxBlk->Priv = (TXINFO_SIZE + USBDMApktLen);
/* For TxInfo, the length of USBDMApktLen = TXWI_SIZE + 802.11 header + payload */
RTMPWriteTxInfo(pAd, pTxInfo, (u16)(USBDMApktLen), FALSE,
FIFO_EDCA, FALSE /*NextValid */ , FALSE);
if ((pHTTXContext->CurWritePosition + 3906 + pTxBlk->Priv) >
MAX_TXBULK_LIMIT) {
pTxInfo->SwUseLastRound = 1;
bTxQLastRound = TRUE;
}
NdisMoveMemory(pWirelessPacket, pTxBlk->HeaderBuf,
TXINFO_SIZE + TXWI_SIZE + hwHdrLen);
pWirelessPacket += (TXINFO_SIZE + TXWI_SIZE + hwHdrLen);
/* We unlock it here to prevent the first 8 bytes maybe over-writed issue. */
/* 1. First we got CurWritePosition but the first 8 bytes still not write to the pTxcontext. */
/* 2. An interrupt break our routine and handle bulk-out complete. */
/* 3. In the bulk-out compllete, it need to do another bulk-out, */
/* if the ENextBulkOutPosition is just the same as CurWritePosition, it will save the first 8 bytes from CurWritePosition, */
/* but the payload still not copyed. the pTxContext->SavedPad[] will save as allzero. and set the bCopyPad = TRUE. */
/* 4. Interrupt complete. */
/* 5. Our interrupted routine go back and fill the first 8 bytes to pTxContext. */
/* 6. Next time when do bulk-out, it found the bCopyPad==TRUE and will copy the SavedPad[] to pTxContext->NextBulkOutPosition. */
/* and the packet will wrong. */
pHTTXContext->CurWriteRealPos +=
(TXINFO_SIZE + TXWI_SIZE + hwHdrLen);
RTMP_IRQ_UNLOCK(&pAd->TxContextQueueLock[QueIdx], IrqFlags);
NdisMoveMemory(pWirelessPacket, pTxBlk->pSrcBufData,
pTxBlk->SrcBufLen);
pWirelessPacket += pTxBlk->SrcBufLen;
NdisZeroMemory(pWirelessPacket, padding + 8);
RTMP_IRQ_LOCK(&pAd->TxContextQueueLock[QueIdx], IrqFlags);
pHTTXContext->CurWritePosition += pTxBlk->Priv;
if (bTxQLastRound)
pHTTXContext->CurWritePosition = 8;
pHTTXContext->CurWriteRealPos = pHTTXContext->CurWritePosition;
pHTTXContext->bCurWriting = FALSE;
}
RTMP_IRQ_UNLOCK(&pAd->TxContextQueueLock[QueIdx], IrqFlags);
/* succeed and release the skb buffer */
RELEASE_NDIS_PACKET(pAd, pTxBlk->pPacket, NDIS_STATUS_SUCCESS);
return (Status);
}
u16 RtmpUSB_WriteMultiTxResource(struct rt_rtmp_adapter *pAd,
struct rt_tx_blk *pTxBlk,
u8 frameNum, u16 * FreeNumber)
{
struct rt_ht_tx_context *pHTTXContext;
u16 hwHdrLen; /* The hwHdrLen consist of 802.11 header length plus the header padding length. */
u32 fillOffset;
struct rt_txinfo *pTxInfo;
struct rt_txwi *pTxWI;
u8 *pWirelessPacket = NULL;
u8 QueIdx;
int Status;
unsigned long IrqFlags;
/*u32 USBDMApktLen = 0, DMAHdrLen, padding; */
/* */
/* get Tx Ring Resource & Dma Buffer address */
/* */
QueIdx = pTxBlk->QueIdx;
pHTTXContext = &pAd->TxContext[QueIdx];
RTMP_IRQ_LOCK(&pAd->TxContextQueueLock[QueIdx], IrqFlags);
if (frameNum == 0) {
/* Check if we have enough space for this bulk-out batch. */
Status = RtmpUSBCanDoWrite(pAd, QueIdx, pHTTXContext);
if (Status == NDIS_STATUS_SUCCESS) {
pHTTXContext->bCurWriting = TRUE;
pTxInfo = (struct rt_txinfo *)(&pTxBlk->HeaderBuf[0]);
pTxWI = (struct rt_txwi *) (&pTxBlk->HeaderBuf[TXINFO_SIZE]);
/* Reserve space for 8 bytes padding. */
if ((pHTTXContext->ENextBulkOutPosition ==
pHTTXContext->CurWritePosition)) {
pHTTXContext->CurWritePosition += 8;
pHTTXContext->ENextBulkOutPosition += 8;
}
fillOffset = pHTTXContext->CurWritePosition;
pHTTXContext->CurWriteRealPos =
pHTTXContext->CurWritePosition;
pWirelessPacket =
&pHTTXContext->TransferBuffer->field.
WirelessPacket[fillOffset];
/* */
/* Copy TXINFO + TXWI + WLAN Header + LLC into DMA Header Buffer */
/* */
if (pTxBlk->TxFrameType == TX_AMSDU_FRAME)
/*hwHdrLen = ROUND_UP(pTxBlk->MpduHeaderLen-LENGTH_AMSDU_SUBFRAMEHEAD, 4)+LENGTH_AMSDU_SUBFRAMEHEAD; */
hwHdrLen =
pTxBlk->MpduHeaderLen -
LENGTH_AMSDU_SUBFRAMEHEAD +
pTxBlk->HdrPadLen +
LENGTH_AMSDU_SUBFRAMEHEAD;
else if (pTxBlk->TxFrameType == TX_RALINK_FRAME)
/*hwHdrLen = ROUND_UP(pTxBlk->MpduHeaderLen-LENGTH_ARALINK_HEADER_FIELD, 4)+LENGTH_ARALINK_HEADER_FIELD; */
hwHdrLen =
pTxBlk->MpduHeaderLen -
LENGTH_ARALINK_HEADER_FIELD +
pTxBlk->HdrPadLen +
LENGTH_ARALINK_HEADER_FIELD;
else
/*hwHdrLen = ROUND_UP(pTxBlk->MpduHeaderLen, 4); */
hwHdrLen =
pTxBlk->MpduHeaderLen + pTxBlk->HdrPadLen;
/* Update the pTxBlk->Priv. */
pTxBlk->Priv = TXINFO_SIZE + TXWI_SIZE + hwHdrLen;
/* pTxInfo->USBDMApktLen now just a temp value and will to correct latter. */
RTMPWriteTxInfo(pAd, pTxInfo, (u16)(pTxBlk->Priv),
FALSE, FIFO_EDCA, FALSE /*NextValid */ ,
FALSE);
/* Copy it. */
NdisMoveMemory(pWirelessPacket, pTxBlk->HeaderBuf,
pTxBlk->Priv);
pHTTXContext->CurWriteRealPos += pTxBlk->Priv;
pWirelessPacket += pTxBlk->Priv;
}
} else { /* For sub-sequent frames of this bulk-out batch. Just copy it to our bulk-out buffer. */
Status =
((pHTTXContext->bCurWriting ==
TRUE) ? NDIS_STATUS_SUCCESS : NDIS_STATUS_FAILURE);
if (Status == NDIS_STATUS_SUCCESS) {
fillOffset =
(pHTTXContext->CurWritePosition + pTxBlk->Priv);
pWirelessPacket =
&pHTTXContext->TransferBuffer->field.
WirelessPacket[fillOffset];
/*hwHdrLen = pTxBlk->MpduHeaderLen; */
NdisMoveMemory(pWirelessPacket, pTxBlk->HeaderBuf,
pTxBlk->MpduHeaderLen);
pWirelessPacket += (pTxBlk->MpduHeaderLen);
pTxBlk->Priv += pTxBlk->MpduHeaderLen;
} else { /* It should not happened now unless we are going to shutdown. */
DBGPRINT(RT_DEBUG_ERROR,
("WriteMultiTxResource():bCurWriting is FALSE when handle sub-sequent frames.\n"));
Status = NDIS_STATUS_FAILURE;
}
}
/* We unlock it here to prevent the first 8 bytes maybe over-write issue. */
/* 1. First we got CurWritePosition but the first 8 bytes still not write to the pTxContext. */
/* 2. An interrupt break our routine and handle bulk-out complete. */
/* 3. In the bulk-out compllete, it need to do another bulk-out, */
/* if the ENextBulkOutPosition is just the same as CurWritePosition, it will save the first 8 bytes from CurWritePosition, */
/* but the payload still not copyed. the pTxContext->SavedPad[] will save as allzero. and set the bCopyPad = TRUE. */
/* 4. Interrupt complete. */
/* 5. Our interrupted routine go back and fill the first 8 bytes to pTxContext. */
/* 6. Next time when do bulk-out, it found the bCopyPad==TRUE and will copy the SavedPad[] to pTxContext->NextBulkOutPosition. */
/* and the packet will wrong. */
RTMP_IRQ_UNLOCK(&pAd->TxContextQueueLock[QueIdx], IrqFlags);
if (Status != NDIS_STATUS_SUCCESS) {
DBGPRINT(RT_DEBUG_ERROR,
("WriteMultiTxResource: CWPos = %ld, NBOutPos = %ld.\n",
pHTTXContext->CurWritePosition,
pHTTXContext->NextBulkOutPosition));
goto done;
}
/* Copy the frame content into DMA buffer and update the pTxBlk->Priv */
NdisMoveMemory(pWirelessPacket, pTxBlk->pSrcBufData, pTxBlk->SrcBufLen);
pWirelessPacket += pTxBlk->SrcBufLen;
pTxBlk->Priv += pTxBlk->SrcBufLen;
done:
/* Release the skb buffer here */
RELEASE_NDIS_PACKET(pAd, pTxBlk->pPacket, NDIS_STATUS_SUCCESS);
return (Status);
}
void RtmpUSB_FinalWriteTxResource(struct rt_rtmp_adapter *pAd,
struct rt_tx_blk *pTxBlk,
u16 totalMPDUSize, u16 TxIdx)
{
u8 QueIdx;
struct rt_ht_tx_context *pHTTXContext;
u32 fillOffset;
struct rt_txinfo *pTxInfo;
struct rt_txwi *pTxWI;
u32 USBDMApktLen, padding;
unsigned long IrqFlags;
u8 *pWirelessPacket;
QueIdx = pTxBlk->QueIdx;
pHTTXContext = &pAd->TxContext[QueIdx];
RTMP_IRQ_LOCK(&pAd->TxContextQueueLock[QueIdx], IrqFlags);
if (pHTTXContext->bCurWriting == TRUE) {
fillOffset = pHTTXContext->CurWritePosition;
if (((pHTTXContext->ENextBulkOutPosition ==
pHTTXContext->CurWritePosition)
|| ((pHTTXContext->ENextBulkOutPosition - 8) ==
pHTTXContext->CurWritePosition))
&& (pHTTXContext->bCopySavePad == TRUE))
pWirelessPacket = (u8 *)(&pHTTXContext->SavedPad[0]);
else
pWirelessPacket =
(u8 *)(&pHTTXContext->TransferBuffer->field.
WirelessPacket[fillOffset]);
/* */
/* Update TxInfo->USBDMApktLen , */
/* the length = TXWI_SIZE + 802.11_hdr + 802.11_hdr_pad + payload_of_all_batch_frames + Bulk-Out-padding */
/* */
pTxInfo = (struct rt_txinfo *)(pWirelessPacket);
/* Calculate the bulk-out padding */
USBDMApktLen = pTxBlk->Priv - TXINFO_SIZE;
padding = (4 - (USBDMApktLen % 4)) & 0x03; /* round up to 4 byte alignment */
USBDMApktLen += padding;
pTxInfo->USBDMATxPktLen = USBDMApktLen;
/* */
/* Update TXWI->MPDUtotalByteCount , */
/* the length = 802.11 header + payload_of_all_batch_frames */
pTxWI = (struct rt_txwi *) (pWirelessPacket + TXINFO_SIZE);
pTxWI->MPDUtotalByteCount = totalMPDUSize;
/* */
/* Update the pHTTXContext->CurWritePosition */
/* */
pHTTXContext->CurWritePosition += (TXINFO_SIZE + USBDMApktLen);
if ((pHTTXContext->CurWritePosition + 3906) > MAX_TXBULK_LIMIT) { /* Add 3906 for prevent the NextBulkOut packet size is a A-RALINK/A-MSDU Frame. */
pHTTXContext->CurWritePosition = 8;
pTxInfo->SwUseLastRound = 1;
}
pHTTXContext->CurWriteRealPos = pHTTXContext->CurWritePosition;
/* */
/* Zero the last padding. */
/* */
pWirelessPacket =
(&pHTTXContext->TransferBuffer->field.
WirelessPacket[fillOffset + pTxBlk->Priv]);
NdisZeroMemory(pWirelessPacket, padding + 8);
/* Finally, set bCurWriting as FALSE */
pHTTXContext->bCurWriting = FALSE;
} else { /* It should not happened now unless we are going to shutdown. */
DBGPRINT(RT_DEBUG_ERROR,
("FinalWriteTxResource():bCurWriting is FALSE when handle last frames.\n"));
}
RTMP_IRQ_UNLOCK(&pAd->TxContextQueueLock[QueIdx], IrqFlags);
}
void RtmpUSBDataLastTxIdx(struct rt_rtmp_adapter *pAd,
u8 QueIdx, u16 TxIdx)
{
/* DO nothing for USB. */
}
/*
When can do bulk-out:
1. TxSwFreeIdx < TX_RING_SIZE;
It means has at least one Ring entity is ready for bulk-out, kick it out.
2. If TxSwFreeIdx == TX_RING_SIZE
Check if the CurWriting flag is FALSE, if it's FALSE, we can do kick out.
*/
void RtmpUSBDataKickOut(struct rt_rtmp_adapter *pAd,
struct rt_tx_blk *pTxBlk, u8 QueIdx)
{
RTUSB_SET_BULK_FLAG(pAd, (fRTUSB_BULK_OUT_DATA_NORMAL << QueIdx));
RTUSBKickBulkOut(pAd);
}
/*
Must be run in Interrupt context
This function handle RT2870 specific TxDesc and cpu index update and kick the packet out.
*/
int RtmpUSBMgmtKickOut(struct rt_rtmp_adapter *pAd,
u8 QueIdx,
void *pPacket,
u8 *pSrcBufVA, u32 SrcBufLen)
{
struct rt_txinfo *pTxInfo;
unsigned long BulkOutSize;
u8 padLen;
u8 *pDest;
unsigned long SwIdx = pAd->MgmtRing.TxCpuIdx;
struct rt_tx_context *pMLMEContext =
(struct rt_tx_context *)pAd->MgmtRing.Cell[SwIdx].AllocVa;
unsigned long IrqFlags;
pTxInfo = (struct rt_txinfo *)(pSrcBufVA);
/* Build our URB for USBD */
BulkOutSize = SrcBufLen;
BulkOutSize = (BulkOutSize + 3) & (~3);
RTMPWriteTxInfo(pAd, pTxInfo, (u16)(BulkOutSize - TXINFO_SIZE),
TRUE, EpToQueue[MGMTPIPEIDX], FALSE, FALSE);
BulkOutSize += 4; /* Always add 4 extra bytes at every packet. */
/* If BulkOutSize is multiple of BulkOutMaxPacketSize, add extra 4 bytes again. */
if ((BulkOutSize % pAd->BulkOutMaxPacketSize) == 0)
BulkOutSize += 4;
padLen = BulkOutSize - SrcBufLen;
ASSERT((padLen <= RTMP_PKT_TAIL_PADDING));
/* Now memzero all extra padding bytes. */
pDest = (u8 *)(pSrcBufVA + SrcBufLen);
skb_put(GET_OS_PKT_TYPE(pPacket), padLen);
NdisZeroMemory(pDest, padLen);
RTMP_IRQ_LOCK(&pAd->MLMEBulkOutLock, IrqFlags);
pAd->MgmtRing.Cell[pAd->MgmtRing.TxCpuIdx].pNdisPacket = pPacket;
pMLMEContext->TransferBuffer =
(struct rt_tx_buffer *)(GET_OS_PKT_DATAPTR(pPacket));
/* Length in TxInfo should be 8 less than bulkout size. */
pMLMEContext->BulkOutSize = BulkOutSize;
pMLMEContext->InUse = TRUE;
pMLMEContext->bWaitingBulkOut = TRUE;
/*for debug */
/*hex_dump("RtmpUSBMgmtKickOut", &pMLMEContext->TransferBuffer->field.WirelessPacket[0], (pMLMEContext->BulkOutSize > 16 ? 16 : pMLMEContext->BulkOutSize)); */
/*pAd->RalinkCounters.KickTxCount++; */
/*pAd->RalinkCounters.OneSecTxDoneCount++; */
/*if (pAd->MgmtRing.TxSwFreeIdx == MGMT_RING_SIZE) */
/* needKickOut = TRUE; */
/* Decrease the TxSwFreeIdx and Increase the TX_CTX_IDX */
pAd->MgmtRing.TxSwFreeIdx--;
INC_RING_INDEX(pAd->MgmtRing.TxCpuIdx, MGMT_RING_SIZE);
RTMP_IRQ_UNLOCK(&pAd->MLMEBulkOutLock, IrqFlags);
RTUSB_SET_BULK_FLAG(pAd, fRTUSB_BULK_OUT_MLME);
/*if (needKickOut) */
RTUSBKickBulkOut(pAd);
return 0;
}
void RtmpUSBNullFrameKickOut(struct rt_rtmp_adapter *pAd,
u8 QueIdx,
u8 * pNullFrame, u32 frameLen)
{
if (pAd->NullContext.InUse == FALSE) {
struct rt_tx_context *pNullContext;
struct rt_txinfo *pTxInfo;
struct rt_txwi * pTxWI;
u8 *pWirelessPkt;
pNullContext = &(pAd->NullContext);
/* Set the in use bit */
pNullContext->InUse = TRUE;
pWirelessPkt =
(u8 *)& pNullContext->TransferBuffer->field.
WirelessPacket[0];
RTMPZeroMemory(&pWirelessPkt[0], 100);
pTxInfo = (struct rt_txinfo *)& pWirelessPkt[0];
RTMPWriteTxInfo(pAd, pTxInfo,
(u16)(sizeof(struct rt_header_802_11) + TXWI_SIZE),
TRUE, EpToQueue[MGMTPIPEIDX], FALSE, FALSE);
pTxInfo->QSEL = FIFO_EDCA;
pTxWI = (struct rt_txwi *) & pWirelessPkt[TXINFO_SIZE];
RTMPWriteTxWI(pAd, pTxWI, FALSE, FALSE, FALSE, FALSE, TRUE,
FALSE, 0, BSSID_WCID, (sizeof(struct rt_header_802_11)), 0,
0, (u8)pAd->CommonCfg.MlmeTransmit.field.MCS,
IFS_HTTXOP, FALSE, &pAd->CommonCfg.MlmeTransmit);
RTMPMoveMemory(&pWirelessPkt[TXWI_SIZE + TXINFO_SIZE],
&pAd->NullFrame, sizeof(struct rt_header_802_11));
pAd->NullContext.BulkOutSize =
TXINFO_SIZE + TXWI_SIZE + sizeof(pAd->NullFrame) + 4;
/* Fill out frame length information for global Bulk out arbitor */
/*pNullContext->BulkOutSize = TransferBufferLength; */
DBGPRINT(RT_DEBUG_TRACE,
("SYNC - send NULL Frame @%d Mbps...\n",
RateIdToMbps[pAd->CommonCfg.TxRate]));
RTUSB_SET_BULK_FLAG(pAd, fRTUSB_BULK_OUT_DATA_NULL);
/* Kick bulk out */
RTUSBKickBulkOut(pAd);
}
}
/*
========================================================================
Routine Description:
Get a received packet.
Arguments:
pAd device control block
pSaveRxD receive descriptor information
*pbReschedule need reschedule flag
*pRxPending pending received packet flag
Return Value:
the recieved packet
Note:
========================================================================
*/
void *GetPacketFromRxRing(struct rt_rtmp_adapter *pAd,
OUT PRT28XX_RXD_STRUC pSaveRxD,
OUT BOOLEAN * pbReschedule,
IN u32 * pRxPending)
{
struct rt_rx_context *pRxContext;
void *pSkb;
u8 *pData;
unsigned long ThisFrameLen;
unsigned long RxBufferLength;
struct rt_rxwi * pRxWI;
pRxContext = &pAd->RxContext[pAd->NextRxBulkInReadIndex];
if ((pRxContext->Readable == FALSE) || (pRxContext->InUse == TRUE))
return NULL;
RxBufferLength = pRxContext->BulkInOffset - pAd->ReadPosition;
if (RxBufferLength <
(RT2870_RXDMALEN_FIELD_SIZE + sizeof(struct rt_rxwi) +
sizeof(struct rt_rxinfo))) {
goto label_null;
}
pData = &pRxContext->TransferBuffer[pAd->ReadPosition]; /* 4KB */
/* The RXDMA field is 4 bytes, now just use the first 2 bytes. The Length including the (RXWI + MSDU + Padding) */
ThisFrameLen = *pData + (*(pData + 1) << 8);
if (ThisFrameLen == 0) {
DBGPRINT(RT_DEBUG_TRACE,
("BIRIdx(%d): RXDMALen is zero.[%ld], BulkInBufLen = %ld)\n",
pAd->NextRxBulkInReadIndex, ThisFrameLen,
pRxContext->BulkInOffset));
goto label_null;
}
if ((ThisFrameLen & 0x3) != 0) {
DBGPRINT(RT_DEBUG_ERROR,
("BIRIdx(%d): RXDMALen not multiple of 4.[%ld], BulkInBufLen = %ld)\n",
pAd->NextRxBulkInReadIndex, ThisFrameLen,
pRxContext->BulkInOffset));
goto label_null;
}
if ((ThisFrameLen + 8) > RxBufferLength) /* 8 for (RT2870_RXDMALEN_FIELD_SIZE + sizeof(struct rt_rxinfo)) */
{
DBGPRINT(RT_DEBUG_TRACE,
("BIRIdx(%d):FrameLen(0x%lx) outranges. BulkInLen=0x%lx, remaining RxBufLen=0x%lx, ReadPos=0x%lx\n",
pAd->NextRxBulkInReadIndex, ThisFrameLen,
pRxContext->BulkInOffset, RxBufferLength,
pAd->ReadPosition));
/* error frame. finish this loop */
goto label_null;
}
/* skip USB frame length field */
pData += RT2870_RXDMALEN_FIELD_SIZE;
pRxWI = (struct rt_rxwi *) pData;
if (pRxWI->MPDUtotalByteCount > ThisFrameLen) {
DBGPRINT(RT_DEBUG_ERROR,
("%s():pRxWIMPDUtotalByteCount(%d) large than RxDMALen(%ld)\n",
__FUNCTION__, pRxWI->MPDUtotalByteCount,
ThisFrameLen));
goto label_null;
}
/* allocate a rx packet */
pSkb = dev_alloc_skb(ThisFrameLen);
if (pSkb == NULL) {
DBGPRINT(RT_DEBUG_ERROR,
("%s():Cannot Allocate sk buffer for this Bulk-In buffer!\n",
__FUNCTION__));
goto label_null;
}
/* copy the rx packet */
memcpy(skb_put(pSkb, ThisFrameLen), pData, ThisFrameLen);
RTPKT_TO_OSPKT(pSkb)->dev = get_netdev_from_bssid(pAd, BSS0);
RTMP_SET_PACKET_SOURCE(OSPKT_TO_RTPKT(pSkb), PKTSRC_NDIS);
/* copy RxD */
*pSaveRxD = *(struct rt_rxinfo *) (pData + ThisFrameLen);
/* update next packet read position. */
pAd->ReadPosition += (ThisFrameLen + RT2870_RXDMALEN_FIELD_SIZE + RXINFO_SIZE); /* 8 for (RT2870_RXDMALEN_FIELD_SIZE + sizeof(struct rt_rxinfo)) */
return pSkb;
label_null:
return NULL;
}
/*
========================================================================
Routine Description:
Check Rx descriptor, return NDIS_STATUS_FAILURE if any error dound
Arguments:
pRxD Pointer to the Rx descriptor
Return Value:
NDIS_STATUS_SUCCESS No err
NDIS_STATUS_FAILURE Error
Note:
========================================================================
*/
int RTMPCheckRxError(struct rt_rtmp_adapter *pAd,
struct rt_header_802_11 * pHeader,
struct rt_rxwi * pRxWI, IN PRT28XX_RXD_STRUC pRxINFO)
{
struct rt_cipher_key *pWpaKey;
int dBm;
if (pAd->bPromiscuous == TRUE)
return (NDIS_STATUS_SUCCESS);
if (pRxINFO == NULL)
return (NDIS_STATUS_FAILURE);
/* Phy errors & CRC errors */
if (pRxINFO->Crc) {
/* Check RSSI for Noise Hist statistic collection. */
dBm = (int)(pRxWI->RSSI0) - pAd->BbpRssiToDbmDelta;
if (dBm <= -87)
pAd->StaCfg.RPIDensity[0] += 1;
else if (dBm <= -82)
pAd->StaCfg.RPIDensity[1] += 1;
else if (dBm <= -77)
pAd->StaCfg.RPIDensity[2] += 1;
else if (dBm <= -72)
pAd->StaCfg.RPIDensity[3] += 1;
else if (dBm <= -67)
pAd->StaCfg.RPIDensity[4] += 1;
else if (dBm <= -62)
pAd->StaCfg.RPIDensity[5] += 1;
else if (dBm <= -57)
pAd->StaCfg.RPIDensity[6] += 1;
else if (dBm > -57)
pAd->StaCfg.RPIDensity[7] += 1;
return (NDIS_STATUS_FAILURE);
}
/* Add Rx size to channel load counter, we should ignore error counts */
pAd->StaCfg.CLBusyBytes += (pRxWI->MPDUtotalByteCount + 14);
/* Drop ToDs promiscous frame, it is opened due to CCX 2 channel load statistics */
if (pHeader->FC.ToDs) {
DBGPRINT_RAW(RT_DEBUG_ERROR, ("Err;FC.ToDs\n"));
return NDIS_STATUS_FAILURE;
}
/* Paul 04-03 for OFDM Rx length issue */
if (pRxWI->MPDUtotalByteCount > MAX_AGGREGATION_SIZE) {
DBGPRINT_RAW(RT_DEBUG_ERROR, ("received packet too long\n"));
return NDIS_STATUS_FAILURE;
}
/* Drop not U2M frames, cant's drop here because we will drop beacon in this case */
/* I am kind of doubting the U2M bit operation */
/* if (pRxD->U2M == 0) */
/* return(NDIS_STATUS_FAILURE); */
/* drop decyption fail frame */
if (pRxINFO->Decrypted && pRxINFO->CipherErr) {
if (((pRxINFO->CipherErr & 1) == 1)
&& pAd->CommonCfg.bWirelessEvent && INFRA_ON(pAd))
RTMPSendWirelessEvent(pAd, IW_ICV_ERROR_EVENT_FLAG,
pAd->MacTab.Content[BSSID_WCID].
Addr, BSS0, 0);
if (((pRxINFO->CipherErr & 2) == 2)
&& pAd->CommonCfg.bWirelessEvent && INFRA_ON(pAd))
RTMPSendWirelessEvent(pAd, IW_MIC_ERROR_EVENT_FLAG,
pAd->MacTab.Content[BSSID_WCID].
Addr, BSS0, 0);
/* */
/* MIC Error */
/* */
if ((pRxINFO->CipherErr == 2) && pRxINFO->MyBss) {
pWpaKey = &pAd->SharedKey[BSS0][pRxWI->KeyIndex];
RTMPReportMicError(pAd, pWpaKey);
DBGPRINT_RAW(RT_DEBUG_ERROR, ("Rx MIC Value error\n"));
}
if (pRxINFO->Decrypted &&
(pAd->SharedKey[BSS0][pRxWI->KeyIndex].CipherAlg ==
CIPHER_AES)
&& (pHeader->Sequence == pAd->FragFrame.Sequence)) {
/* */
/* Acceptable since the First FragFrame no CipherErr problem. */
/* */
return (NDIS_STATUS_SUCCESS);
}
return (NDIS_STATUS_FAILURE);
}
return (NDIS_STATUS_SUCCESS);
}
void RtmpUsbStaAsicForceWakeupTimeout(void *SystemSpecific1,
void *FunctionContext,
void *SystemSpecific2,
void *SystemSpecific3)
{
struct rt_rtmp_adapter *pAd = (struct rt_rtmp_adapter *)FunctionContext;
if (pAd && pAd->Mlme.AutoWakeupTimerRunning) {
AsicSendCommandToMcu(pAd, 0x31, 0xff, 0x00, 0x02);
OPSTATUS_CLEAR_FLAG(pAd, fOP_STATUS_DOZE);
pAd->Mlme.AutoWakeupTimerRunning = FALSE;
}
}
void RT28xxUsbStaAsicForceWakeup(struct rt_rtmp_adapter *pAd, IN BOOLEAN bFromTx)
{
BOOLEAN Canceled;
if (pAd->Mlme.AutoWakeupTimerRunning)
RTMPCancelTimer(&pAd->Mlme.AutoWakeupTimer, &Canceled);
AsicSendCommandToMcu(pAd, 0x31, 0xff, 0x00, 0x02);
OPSTATUS_CLEAR_FLAG(pAd, fOP_STATUS_DOZE);
}
void RT28xxUsbStaAsicSleepThenAutoWakeup(struct rt_rtmp_adapter *pAd,
u16 TbttNumToNextWakeUp)
{
/* we have decided to SLEEP, so at least do it for a BEACON period. */
if (TbttNumToNextWakeUp == 0)
TbttNumToNextWakeUp = 1;
RTMPSetTimer(&pAd->Mlme.AutoWakeupTimer, AUTO_WAKEUP_TIMEOUT);
pAd->Mlme.AutoWakeupTimerRunning = TRUE;
AsicSendCommandToMcu(pAd, 0x30, 0xff, 0xff, 0x02); /* send POWER-SAVE command to MCU. Timeout 40us. */
OPSTATUS_SET_FLAG(pAd, fOP_STATUS_DOZE);
}
#endif /* RTMP_MAC_USB // */
