diff options
author | Greg Kroah-Hartman <gregkh@suse.de> | 2009-02-25 16:14:55 -0800 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-04-03 14:54:24 -0700 |
commit | e642f09951f7cbb69983781b07bb9cd881546ac4 (patch) | |
tree | c783967792f17f0abfab38c9a893fb9565b8bae2 /drivers/staging/rt3070/common/rtusb_data.c | |
parent | 21a6a6e9f81fb26fbcecbb1304018d34dcd1794f (diff) |
Staging: add rt3070 wireless driver
This is the Ralink RT3070 driver from the company that does horrible
things like reading a config file from /etc. However, the driver that
is currently under development from the wireless development community
is not working at all yet, so distros and users are using this version
instead (quite common hardware on a lot of netbook machines).
So here is this driver, for now, until the wireless developers get a
"clean" version into the main tree, or until this version is cleaned up
sufficiently to move out of the staging tree.
Ported to the Linux build system, fixed lots of build issues, forward
ported to the current kernel version, and other minor cleanups were all
done by me.
Cc: Linux wireless <linux-wireless@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/staging/rt3070/common/rtusb_data.c')
-rw-r--r-- | drivers/staging/rt3070/common/rtusb_data.c | 218 |
1 files changed, 218 insertions, 0 deletions
diff --git a/drivers/staging/rt3070/common/rtusb_data.c b/drivers/staging/rt3070/common/rtusb_data.c new file mode 100644 index 00000000000..521309a2ae5 --- /dev/null +++ b/drivers/staging/rt3070/common/rtusb_data.c @@ -0,0 +1,218 @@ +/* + ************************************************************************* + * 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 + +*/ +#include "../rt_config.h" + +extern UCHAR Phy11BGNextRateUpward[]; // defined in mlme.c +extern UCHAR EpToQueue[]; + + +VOID REPORT_AMSDU_FRAMES_TO_LLC( + IN PRTMP_ADAPTER pAd, + IN PUCHAR pData, + IN ULONG DataSize) +{ + PNDIS_PACKET pPacket; + UINT nMSDU; + struct sk_buff *pSkb; + + nMSDU = 0; + /* allocate a rx packet */ + pSkb = dev_alloc_skb(RX_BUFFER_AGGRESIZE); + pPacket = (PNDIS_PACKET)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")); + } +} + +NDIS_STATUS RTUSBFreeDescriptorRequest( + IN PRTMP_ADAPTER pAd, + IN UCHAR BulkOutPipeId, + IN UINT32 NumberRequired) +{ +// UCHAR FreeNumber = 0; +// UINT Index; + NDIS_STATUS Status = NDIS_STATUS_FAILURE; + unsigned long IrqFlags; + 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); +} + + +NDIS_STATUS RTUSBFreeDescriptorRelease( + IN RTMP_ADAPTER *pAd, + IN UCHAR BulkOutPipeId) +{ + unsigned long IrqFlags; + 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( + IN RTMP_ADAPTER *pAd, + IN UCHAR BulkOutPipeId) +{ + unsigned long IrqFlags; + 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( + IN PRTMP_ADAPTER pAd) +{ + UCHAR Index; + PQUEUE_ENTRY pEntry; + PNDIS_PACKET pPacket; + PQUEUE_HEADER pQueue; + + + for (Index = 0; Index < 4; Index++) + { + NdisAcquireSpinLock(&pAd->TxSwQueueLock[Index]); + while (pAd->TxSwQueue[Index].Head != NULL) + { + pQueue = (PQUEUE_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]); + + } + +} + +VOID RTMPWriteTxInfo( + IN PRTMP_ADAPTER pAd, + IN PTXINFO_STRUC pTxInfo, + IN USHORT USBDMApktLen, + IN BOOLEAN bWiv, + IN UCHAR QueueSel, + IN UCHAR NextValid, + IN UCHAR 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; +} + |