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/*
*************************************************************************
* 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. *
* *
*************************************************************************
Module Name:
rtusb_data.c
Abstract:
Ralink USB driver Tx/Rx functions.
Revision History:
Who When What
-------- ---------- ----------------------------------------------
Jan 03-25-2006 created
*/
#ifdef RTMP_MAC_USB
#include "../rt_config.h"
extern u8 Phy11BGNextRateUpward[]; /* defined in mlme.c */
extern u8 EpToQueue[];
void REPORT_AMSDU_FRAMES_TO_LLC(struct rt_rtmp_adapter *pAd,
u8 *pData, unsigned long DataSize)
{
void *pPacket;
u32 nMSDU;
struct sk_buff *pSkb;
nMSDU = 0;
/* allocate a rx packet */
pSkb = dev_alloc_skb(RX_BUFFER_AGGRESIZE);
pPacket = (void *)OSPKT_TO_RTPKT(pSkb);
if (pSkb) {
/* convert 802.11 to 802.3 packet */
pSkb->dev = get_netdev_from_bssid(pAd, BSS0);
RTMP_SET_PACKET_SOURCE(pPacket, PKTSRC_NDIS);
deaggregate_AMSDU_announce(pAd, pPacket, pData, DataSize);
} else {
DBGPRINT(RT_DEBUG_ERROR, ("Can't allocate skb\n"));
}
}
/*
========================================================================
Routine Description:
This subroutine will scan through releative ring descriptor to find
out available free ring descriptor and compare with request size.
Arguments:
pAd Pointer to our adapter
RingType Selected Ring
Return Value:
NDIS_STATUS_FAILURE Not enough free descriptor
NDIS_STATUS_SUCCESS Enough free descriptor
Note:
========================================================================
*/
int RTUSBFreeDescriptorRequest(struct rt_rtmp_adapter *pAd,
u8 BulkOutPipeId,
u32 NumberRequired)
{
/* u8 FreeNumber = 0; */
/* u32 Index; */
int Status = NDIS_STATUS_FAILURE;
unsigned long IrqFlags;
struct rt_ht_tx_context *pHTTXContext;
pHTTXContext = &pAd->TxContext[BulkOutPipeId];
RTMP_IRQ_LOCK(&pAd->TxContextQueueLock[BulkOutPipeId], IrqFlags);
if ((pHTTXContext->CurWritePosition < pHTTXContext->NextBulkOutPosition)
&&
((pHTTXContext->CurWritePosition + NumberRequired +
LOCAL_TXBUF_SIZE) > pHTTXContext->NextBulkOutPosition)) {
RTUSB_SET_BULK_FLAG(pAd,
(fRTUSB_BULK_OUT_DATA_NORMAL <<
BulkOutPipeId));
} else if ((pHTTXContext->CurWritePosition == 8)
&& (pHTTXContext->NextBulkOutPosition <
(NumberRequired + LOCAL_TXBUF_SIZE))) {
RTUSB_SET_BULK_FLAG(pAd,
(fRTUSB_BULK_OUT_DATA_NORMAL <<
BulkOutPipeId));
} else if (pHTTXContext->bCurWriting == TRUE) {
DBGPRINT(RT_DEBUG_TRACE,
("RTUSBFreeD c3 --> QueIdx=%d, CWPos=%ld, NBOutPos=%ld!\n",
BulkOutPipeId, pHTTXContext->CurWritePosition,
pHTTXContext->NextBulkOutPosition));
RTUSB_SET_BULK_FLAG(pAd,
(fRTUSB_BULK_OUT_DATA_NORMAL <<
BulkOutPipeId));
} else {
Status = NDIS_STATUS_SUCCESS;
}
RTMP_IRQ_UNLOCK(&pAd->TxContextQueueLock[BulkOutPipeId], IrqFlags);
return Status;
}
int RTUSBFreeDescriptorRelease(struct rt_rtmp_adapter *pAd,
u8 BulkOutPipeId)
{
unsigned long IrqFlags;
struct rt_ht_tx_context *pHTTXContext;
pHTTXContext = &pAd->TxContext[BulkOutPipeId];
RTMP_IRQ_LOCK(&pAd->TxContextQueueLock[BulkOutPipeId], IrqFlags);
pHTTXContext->bCurWriting = FALSE;
RTMP_IRQ_UNLOCK(&pAd->TxContextQueueLock[BulkOutPipeId], IrqFlags);
return NDIS_STATUS_SUCCESS;
}
BOOLEAN RTUSBNeedQueueBackForAgg(struct rt_rtmp_adapter *pAd, u8 BulkOutPipeId)
{
unsigned long IrqFlags;
struct rt_ht_tx_context *pHTTXContext;
BOOLEAN needQueBack = FALSE;
pHTTXContext = &pAd->TxContext[BulkOutPipeId];
RTMP_IRQ_LOCK(&pAd->TxContextQueueLock[BulkOutPipeId], IrqFlags);
if ((pHTTXContext->IRPPending ==
TRUE) /*&& (pAd->TxSwQueue[BulkOutPipeId].Number == 0) */) {
if ((pHTTXContext->CurWritePosition <
pHTTXContext->ENextBulkOutPosition)
&&
(((pHTTXContext->ENextBulkOutPosition +
MAX_AGGREGATION_SIZE) < MAX_TXBULK_LIMIT)
|| (pHTTXContext->CurWritePosition >
MAX_AGGREGATION_SIZE))) {
needQueBack = TRUE;
} else
if ((pHTTXContext->CurWritePosition >
pHTTXContext->ENextBulkOutPosition)
&&
((pHTTXContext->ENextBulkOutPosition +
MAX_AGGREGATION_SIZE) <
pHTTXContext->CurWritePosition)) {
needQueBack = TRUE;
}
}
RTMP_IRQ_UNLOCK(&pAd->TxContextQueueLock[BulkOutPipeId], IrqFlags);
return needQueBack;
}
/*
========================================================================
Routine Description:
Arguments:
Return Value:
IRQL =
Note:
========================================================================
*/
void RTUSBRejectPendingPackets(struct rt_rtmp_adapter *pAd)
{
u8 Index;
struct rt_queue_entry *pEntry;
void *pPacket;
struct rt_queue_header *pQueue;
for (Index = 0; Index < 4; Index++) {
NdisAcquireSpinLock(&pAd->TxSwQueueLock[Index]);
while (pAd->TxSwQueue[Index].Head != NULL) {
pQueue = (struct rt_queue_header *)&(pAd->TxSwQueue[Index]);
pEntry = RemoveHeadQueue(pQueue);
pPacket = QUEUE_ENTRY_TO_PACKET(pEntry);
RELEASE_NDIS_PACKET(pAd, pPacket, NDIS_STATUS_FAILURE);
}
NdisReleaseSpinLock(&pAd->TxSwQueueLock[Index]);
}
}
/*
========================================================================
Routine Description:
Calculates the duration which is required to transmit out frames
with given size and specified rate.
Arguments:
pTxD Pointer to transmit descriptor
Ack Setting for Ack requirement bit
Fragment Setting for Fragment bit
RetryMode Setting for retry mode
Ifs Setting for IFS gap
Rate Setting for transmit rate
Service Setting for service
Length Frame length
TxPreamble Short or Long preamble when using CCK rates
QueIdx - 0-3, according to 802.11e/d4.4 June/2003
Return Value:
None
IRQL = PASSIVE_LEVEL
IRQL = DISPATCH_LEVEL
========================================================================
*/
void RTMPWriteTxInfo(struct rt_rtmp_adapter *pAd,
struct rt_txinfo *pTxInfo,
u16 USBDMApktLen,
IN BOOLEAN bWiv,
u8 QueueSel, u8 NextValid, u8 TxBurst)
{
pTxInfo->USBDMATxPktLen = USBDMApktLen;
pTxInfo->QSEL = QueueSel;
if (QueueSel != FIFO_EDCA)
DBGPRINT(RT_DEBUG_TRACE,
("====> QueueSel != FIFO_EDCA<============\n"));
pTxInfo->USBDMANextVLD = FALSE; /*NextValid; // Need to check with Jan about this. */
pTxInfo->USBDMATxburst = TxBurst;
pTxInfo->WIV = bWiv;
pTxInfo->SwUseLastRound = 0;
pTxInfo->rsv = 0;
pTxInfo->rsv2 = 0;
}
#endif /* RTMP_MAC_USB // */
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