blob: f2a5225b50f82bc6c64398e3efbd0adbf110cee7 [file] [log] [blame]
/*
* 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 "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)
{
unsigned long flags;
int ntStatus;
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"---->Interrupt Polling Thread\n");
spin_lock_irqsave(&pDevice->lock, flags);
ntStatus = PIPEnsInterruptRead(pDevice);
spin_unlock_irqrestore(&pDevice->lock, flags);
}
void INTnsProcessData(struct vnt_private *priv)
{
struct vnt_interrupt_data *int_data;
struct vnt_manager *mgmt = &priv->vnt_mgmt;
struct net_device_stats *stats = &priv->stats;
DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"---->s_nsInterruptProcessData\n");
int_data = (struct vnt_interrupt_data *)priv->int_buf.data_buf;
if (int_data->tsr0 & TSR_VALID) {
if (int_data->tsr0 & (TSR_TMO | TSR_RETRYTMO))
priv->wstats.discard.retries++;
else
stats->tx_packets++;
BSSvUpdateNodeTxCounter(priv,
int_data->tsr0,
int_data->pkt0);
}
if (int_data->tsr1 & TSR_VALID) {
if (int_data->tsr1 & (TSR_TMO | TSR_RETRYTMO))
priv->wstats.discard.retries++;
else
stats->tx_packets++;
BSSvUpdateNodeTxCounter(priv,
int_data->tsr1,
int_data->pkt1);
}
if (int_data->tsr2 & TSR_VALID) {
if (int_data->tsr2 & (TSR_TMO | TSR_RETRYTMO))
priv->wstats.discard.retries++;
else
stats->tx_packets++;
BSSvUpdateNodeTxCounter(priv,
int_data->tsr2,
int_data->pkt2);
}
if (int_data->tsr3 & TSR_VALID) {
if (int_data->tsr3 & (TSR_TMO | TSR_RETRYTMO))
priv->wstats.discard.retries++;
else
stats->tx_packets++;
BSSvUpdateNodeTxCounter(priv,
int_data->tsr3,
int_data->pkt3);
}
if (int_data->isr0 != 0) {
if (int_data->isr0 & ISR_BNTX) {
if (priv->op_mode == NL80211_IFTYPE_AP) {
if (mgmt->byDTIMCount > 0) {
mgmt->byDTIMCount--;
mgmt->sNodeDBTable[0].bRxPSPoll =
false;
} else if (mgmt->byDTIMCount == 0) {
/* check if multicast tx buffering */
mgmt->byDTIMCount =
mgmt->byDTIMPeriod-1;
mgmt->sNodeDBTable[0].bRxPSPoll = true;
if (mgmt->sNodeDBTable[0].bPSEnable)
bScheduleCommand((void *) priv,
WLAN_CMD_RX_PSPOLL,
NULL);
}
bScheduleCommand((void *) priv,
WLAN_CMD_BECON_SEND,
NULL);
}
priv->bBeaconSent = true;
} else {
priv->bBeaconSent = false;
}
if (int_data->isr0 & ISR_TBTT) {
if (priv->bEnablePSMode)
bScheduleCommand((void *) priv,
WLAN_CMD_TBTT_WAKEUP,
NULL);
if (priv->bChannelSwitch) {
priv->byChannelSwitchCount--;
if (priv->byChannelSwitchCount == 0)
bScheduleCommand((void *) priv,
WLAN_CMD_11H_CHSW,
NULL);
}
}
priv->qwCurrTSF = le64_to_cpu(int_data->tsf);
}
if (int_data->isr1 != 0)
if (int_data->isr1 & ISR_GPIO3)
bScheduleCommand((void *) priv,
WLAN_CMD_RADIO,
NULL);
priv->int_buf.in_use = false;
stats->tx_errors = priv->wstats.discard.retries;
stats->tx_dropped = priv->wstats.discard.retries;
}