Initial file dump from open source releaseHEADmaster

1 files changed, 202 insertions, 0 deletions

diff --git a/drivers/staging/vt6656/int.c b/drivers/staging/vt6656/int.c
new file mode 100644
index 00000000..a2b4ba6d
--- /dev/null
+++ b/drivers/staging/vt6656/int.c
@@ -0,0 +1,202 @@
+/*
+ * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
+ * All rights reserved.
+ *
+ * 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.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ *
+ * File: int.c
+ *
+ * Purpose: Handle USB interrupt endpoint
+ *
+ * Author: Jerry Chen
+ *
+ * Date: Apr. 2, 2004
+ *
+ * Functions:
+ *
+ * Revision History:
+ *      04-02-2004 Jerry Chen:  Initial release
+ *
+ */
+
+#include "int.h"
+#include "mib.h"
+#include "tmacro.h"
+#include "mac.h"
+#include "power.h"
+#include "bssdb.h"
+#include "usbpipe.h"
+
+static int msglevel = MSG_LEVEL_INFO; /* MSG_LEVEL_DEBUG */
+
+/*+
+ *
+ *  Function:   InterruptPollingThread
+ *
+ *  Synopsis:   Thread running at IRQL PASSIVE_LEVEL.
+ *
+ *  Arguments: Device Extension
+ *
+ *  Returns:
+ *
+ *  Algorithm:  Call USBD for input data;
+ *
+ *  History:    dd-mm-yyyy   Author    Comment
+ *
+ *
+ *  Notes:
+ *
+ *  USB reads are by nature 'Blocking', and when in a read, the device looks
+ *  like it's in a 'stall' condition, so we deliberately time out every second
+ *  if we've gotten no data
+ *
+-*/
+void INTvWorkItem(struct vnt_private *pDevice)
+{
+	int ntStatus;
+
+	DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"---->Interrupt Polling Thread\n");
+
+	spin_lock_irq(&pDevice->lock);
+	if (pDevice->fKillEventPollingThread != true)
+		ntStatus = PIPEnsInterruptRead(pDevice);
+	spin_unlock_irq(&pDevice->lock);
+}
+
+void INTnsProcessData(struct vnt_private *pDevice)
+{
+	PSINTData pINTData;
+	struct vnt_manager *pMgmt = &pDevice->vnt_mgmt;
+	struct net_device_stats *pStats = &pDevice->stats;
+
+	DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"---->s_nsInterruptProcessData\n");
+
+	pINTData = (PSINTData) pDevice->intBuf.pDataBuf;
+	if (pINTData->byTSR0 & TSR_VALID) {
+		STAvUpdateTDStatCounter(&(pDevice->scStatistic),
+					(u8)(pINTData->byPkt0 & 0x0F),
+					(u8)(pINTData->byPkt0>>4),
+					pINTData->byTSR0);
+		BSSvUpdateNodeTxCounter(pDevice,
+					&(pDevice->scStatistic),
+					pINTData->byTSR0,
+					pINTData->byPkt0);
+		/*DBG_PRN_GRP01(("TSR0 %02x\n", pINTData->byTSR0));*/
+	}
+	if (pINTData->byTSR1 & TSR_VALID) {
+		STAvUpdateTDStatCounter(&(pDevice->scStatistic),
+					(u8)(pINTData->byPkt1 & 0x0F),
+					(u8)(pINTData->byPkt1>>4),
+					pINTData->byTSR1);
+		BSSvUpdateNodeTxCounter(pDevice,
+					&(pDevice->scStatistic),
+					pINTData->byTSR1,
+					pINTData->byPkt1);
+		/*DBG_PRN_GRP01(("TSR1 %02x\n", pINTData->byTSR1));*/
+	}
+	if (pINTData->byTSR2 & TSR_VALID) {
+		STAvUpdateTDStatCounter(&(pDevice->scStatistic),
+					(u8)(pINTData->byPkt2 & 0x0F),
+					(u8)(pINTData->byPkt2>>4),
+					pINTData->byTSR2);
+		BSSvUpdateNodeTxCounter(pDevice,
+					&(pDevice->scStatistic),
+					pINTData->byTSR2,
+					pINTData->byPkt2);
+		/*DBG_PRN_GRP01(("TSR2 %02x\n", pINTData->byTSR2));*/
+	}
+	if (pINTData->byTSR3 & TSR_VALID) {
+		STAvUpdateTDStatCounter(&(pDevice->scStatistic),
+					(u8)(pINTData->byPkt3 & 0x0F),
+					(u8)(pINTData->byPkt3>>4),
+					pINTData->byTSR3);
+		BSSvUpdateNodeTxCounter(pDevice,
+					&(pDevice->scStatistic),
+					pINTData->byTSR3,
+					pINTData->byPkt3);
+		/*DBG_PRN_GRP01(("TSR3 %02x\n", pINTData->byTSR3));*/
+	}
+	if (pINTData->byISR0 != 0) {
+		if (pINTData->byISR0 & ISR_BNTX) {
+			if (pDevice->eOPMode == OP_MODE_AP) {
+				if (pMgmt->byDTIMCount > 0) {
+					pMgmt->byDTIMCount--;
+					pMgmt->sNodeDBTable[0].bRxPSPoll =
+						false;
+				} else if (pMgmt->byDTIMCount == 0) {
+					/* check if multicast tx buffering */
+					pMgmt->byDTIMCount =
+						pMgmt->byDTIMPeriod-1;
+					pMgmt->sNodeDBTable[0].bRxPSPoll = true;
+					if (pMgmt->sNodeDBTable[0].bPSEnable)
+						bScheduleCommand((void *) pDevice,
+								 WLAN_CMD_RX_PSPOLL,
+								 NULL);
+				}
+				bScheduleCommand((void *) pDevice,
+						WLAN_CMD_BECON_SEND,
+						NULL);
+			} /* if (pDevice->eOPMode == OP_MODE_AP) */
+		pDevice->bBeaconSent = true;
+		} else {
+			pDevice->bBeaconSent = false;
+		}
+		if (pINTData->byISR0 & ISR_TBTT) {
+			if (pDevice->bEnablePSMode)
+				bScheduleCommand((void *) pDevice,
+						WLAN_CMD_TBTT_WAKEUP,
+						NULL);
+			if (pDevice->bChannelSwitch) {
+				pDevice->byChannelSwitchCount--;
+				if (pDevice->byChannelSwitchCount == 0)
+					bScheduleCommand((void *) pDevice,
+							WLAN_CMD_11H_CHSW,
+							NULL);
+			}
+		}
+		pDevice->qwCurrTSF = cpu_to_le64(pINTData->qwTSF);
+		/*DBG_PRN_GRP01(("ISR0 = %02x ,
+		  LoTsf =  %08x,
+		  HiTsf =  %08x\n",
+		  pINTData->byISR0,
+		  pINTData->dwLoTSF,
+		  pINTData->dwHiTSF)); */
+
+		STAvUpdate802_11Counter(&pDevice->s802_11Counter,
+					&pDevice->scStatistic,
+					pINTData->byRTSSuccess,
+					pINTData->byRTSFail,
+					pINTData->byACKFail,
+					pINTData->byFCSErr);
+		STAvUpdateIsrStatCounter(&pDevice->scStatistic,
+					pINTData->byISR0,
+					pINTData->byISR1);
+	}
+	if (pINTData->byISR1 != 0)
+		if (pINTData->byISR1 & ISR_GPIO3)
+			bScheduleCommand((void *) pDevice,
+					WLAN_CMD_RADIO,
+					NULL);
+	pDevice->intBuf.uDataLen = 0;
+	pDevice->intBuf.bInUse = false;
+
+	pStats->tx_packets = pDevice->scStatistic.ullTsrOK;
+	pStats->tx_bytes = pDevice->scStatistic.ullTxDirectedBytes +
+		pDevice->scStatistic.ullTxMulticastBytes +
+		pDevice->scStatistic.ullTxBroadcastBytes;
+	pStats->tx_errors = pDevice->scStatistic.dwTsrErr;
+	pStats->tx_dropped = pDevice->scStatistic.dwTsrErr;
+}