+++ /dev/null
-/*
- * Copyright (c) 2007-2008 Atheros Communications Inc.
- *
- * Permission to use, copy, modify, and/or distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-#include "cprecomp.h"
-
-void zfScanMgrInit(zdev_t* dev)
-{
- zmw_get_wlan_dev(dev);
-
- wd->sta.scanMgr.scanReqs[0] = 0;
- wd->sta.scanMgr.scanReqs[1] = 0;
-
- wd->sta.scanMgr.currScanType = ZM_SCAN_MGR_SCAN_NONE;
- wd->sta.scanMgr.scanStartDelay = 3;
- //wd->sta.scanMgr.scanStartDelay = 0;
-}
-
-u8_t zfScanMgrScanStart(zdev_t* dev, u8_t scanType)
-{
- u8_t i;
-
- zmw_get_wlan_dev(dev);
-
- zm_debug_msg1("scanType = ", scanType);
-
- zmw_declare_for_critical_section();
-
- if ( scanType != ZM_SCAN_MGR_SCAN_INTERNAL &&
- scanType != ZM_SCAN_MGR_SCAN_EXTERNAL )
- {
- zm_debug_msg0("unknown scanType");
- return 1;
- }
- else if (zfStaIsConnecting(dev))
- {
- zm_debug_msg0("reject scan request due to connecting");
- return 1;
- }
-
- i = scanType - 1;
-
- zmw_enter_critical_section(dev);
-
- if ( wd->sta.scanMgr.scanReqs[i] == 1 )
- {
- zm_debug_msg1("scan rescheduled", scanType);
- goto scan_done;
- }
-
- wd->sta.scanMgr.scanReqs[i] = 1;
- zm_debug_msg1("scan scheduled: ", scanType);
-
- // If there's no scan pending, we do the scan right away.
- // If there's an internal scan and the new scan request is external one,
- // we will restart the scan.
- if ( wd->sta.scanMgr.currScanType == ZM_SCAN_MGR_SCAN_NONE )
- {
- goto schedule_scan;
- }
- else if ( wd->sta.scanMgr.currScanType == ZM_SCAN_MGR_SCAN_INTERNAL &&
- scanType == ZM_SCAN_MGR_SCAN_EXTERNAL )
- {
- // Stop the internal scan & schedule external scan first
- zfTimerCancel(dev, ZM_EVENT_SCAN);
-
- /* Fix for WHQL sendrecv => we do not apply delay time in which the device
- stop transmitting packet when we already connect to some AP */
- wd->sta.bScheduleScan = FALSE;
-
- zfTimerCancel(dev, ZM_EVENT_TIMEOUT_SCAN);
- zfTimerCancel(dev, ZM_EVENT_IN_SCAN);
-
- wd->sta.bChannelScan = FALSE;
- goto schedule_scan;
- }
- else
- {
- zm_debug_msg0("Scan is busy...waiting later to start\n");
- }
-
- zmw_leave_critical_section(dev);
- return 0;
-
-scan_done:
- zmw_leave_critical_section(dev);
- return 1;
-
-schedule_scan:
-
- wd->sta.bScheduleScan = TRUE;
-
- zfTimerSchedule(dev, ZM_EVENT_SCAN, wd->sta.scanMgr.scanStartDelay);
- wd->sta.scanMgr.scanStartDelay = 3;
- //wd->sta.scanMgr.scanStartDelay = 0;
- wd->sta.scanMgr.currScanType = scanType;
- zmw_leave_critical_section(dev);
-
- if ((zfStaIsConnected(dev)) && (!zfPowerSavingMgrIsSleeping(dev)))
- {
- zfSendNullData(dev, 1);
- }
- return 0;
-}
-
-void zfScanMgrScanStop(zdev_t* dev, u8_t scanType)
-{
- u8_t scanNotifyRequired = 0;
- u8_t theOtherScan = ZM_SCAN_MGR_SCAN_NONE;
-
- zmw_get_wlan_dev(dev);
-
- zmw_declare_for_critical_section();
-
- zmw_enter_critical_section(dev);
-
- if ( wd->sta.scanMgr.currScanType == ZM_SCAN_MGR_SCAN_NONE )
- {
- zm_assert(wd->sta.scanMgr.scanReqs[0] == 0);
- zm_assert(wd->sta.scanMgr.scanReqs[1] == 0);
- goto done;
- }
-
- switch(scanType)
- {
- case ZM_SCAN_MGR_SCAN_EXTERNAL:
- scanNotifyRequired = 1;
- theOtherScan = ZM_SCAN_MGR_SCAN_INTERNAL;
- break;
-
- case ZM_SCAN_MGR_SCAN_INTERNAL:
- theOtherScan = ZM_SCAN_MGR_SCAN_EXTERNAL;
- break;
-
- default:
- goto done;
- }
-
- if ( wd->sta.scanMgr.currScanType != scanType )
- {
- goto stop_done;
- }
-
- zfTimerCancel(dev, ZM_EVENT_SCAN);
-
- /* Fix for WHQL sendrecv => we do not apply delay time in which the device
- stop transmitting packet when we already connect to some AP */
- wd->sta.bScheduleScan = FALSE;
-
- zfTimerCancel(dev, ZM_EVENT_TIMEOUT_SCAN);
- zfTimerCancel(dev, ZM_EVENT_IN_SCAN);
-
- wd->sta.bChannelScan = FALSE;
- wd->sta.scanFrequency = 0;
-
- if ( wd->sta.scanMgr.scanReqs[theOtherScan - 1] )
- {
- wd->sta.scanMgr.currScanType = theOtherScan;
-
- // Schedule the other scan after 1 second later
- zfTimerSchedule(dev, ZM_EVENT_SCAN, 100);
- }
- else
- {
- wd->sta.scanMgr.currScanType = ZM_SCAN_MGR_SCAN_NONE;
- }
-
-stop_done:
- wd->sta.scanMgr.scanReqs[scanType - 1] = 0;
-
- zmw_leave_critical_section(dev);
-
- /* avoid lose receive packet when site survey */
- if ((zfStaIsConnected(dev)) && (!zfPowerSavingMgrIsSleeping(dev)))
- {
- zfSendNullData(dev, 0);
- }
-
- if ( scanNotifyRequired )
- {
- zm_debug_msg0("Scan notify after reset");
- if (wd->zfcbScanNotify != NULL)
- {
- wd->zfcbScanNotify(dev, NULL);
- }
- }
-
- return;
-
-done:
- zmw_leave_critical_section(dev);
- return;
-}
-
-void zfScanMgrScanAck(zdev_t* dev)
-{
- zmw_get_wlan_dev(dev);
-
- zmw_declare_for_critical_section();
-
- zmw_enter_critical_section(dev);
-
- wd->sta.scanMgr.scanStartDelay = 3;
- //wd->sta.scanMgr.scanStartDelay = 0;
-
- zmw_leave_critical_section(dev);
- return;
-}
-
-extern void zfStaReconnect(zdev_t* dev);
-
-static void zfScanSendProbeRequest(zdev_t* dev)
-{
- u8_t k;
- u16_t dst[3] = { 0xffff, 0xffff, 0xffff };
-
- zmw_get_wlan_dev(dev);
-
- /* Increase rxBeaconCount to prevent beacon lost */
- if (zfStaIsConnected(dev))
- {
- wd->sta.rxBeaconCount++;
- }
-
- if ( wd->sta.bPassiveScan )
- {
- return;
- }
- /* enable 802.l11h and in DFS Band , disable sending probe request */
- if (wd->sta.DFSEnable)
- {
- if (zfHpIsDfsChannel(dev, wd->sta.scanFrequency))
- {
- return;
- }
- }
-
- zfSendMmFrame(dev, ZM_WLAN_FRAME_TYPE_PROBEREQ, dst, 0, 0, 0);
-
- if ( wd->sta.disableProbingWithSsid )
- {
- return;
- }
-
- for (k=1; k<=ZM_MAX_PROBE_HIDDEN_SSID_SIZE; k++)
- {
- if ( wd->ws.probingSsidList[k-1].ssidLen != 0 )
- {
- zfSendMmFrame(dev, ZM_WLAN_FRAME_TYPE_PROBEREQ, dst, k, 0, 0);
- }
- }
-}
-
-static void zfScanMgrEventSetFreqCompleteCb(zdev_t* dev)
-{
- zmw_get_wlan_dev(dev);
-
- zmw_declare_for_critical_section();
-
-//printk("zfScanMgrEventSetFreqCompleteCb #1\n");
-
- zmw_enter_critical_section(dev);
- zfTimerSchedule(dev, ZM_EVENT_IN_SCAN, ZM_TICK_IN_SCAN);
- if (wd->sta.bPassiveScan)
- {
- zfTimerSchedule(dev, ZM_EVENT_TIMEOUT_SCAN, wd->sta.passiveScanTickPerChannel);
- }
- else
- {
- zfTimerSchedule(dev, ZM_EVENT_TIMEOUT_SCAN, wd->sta.activescanTickPerChannel);
- }
- zmw_leave_critical_section(dev);
-
- zfScanSendProbeRequest(dev);
-}
-
-
-static void zfScanMgrEventScanCompleteCb(zdev_t* dev)
-{
- if ((zfStaIsConnected(dev)) && (!zfPowerSavingMgrIsSleeping(dev)))
- {
- zfSendNullData(dev, 0);
- }
- return;
-}
-
-
-void zfScanMgrScanEventRetry(zdev_t* dev)
-{
- zmw_get_wlan_dev(dev);
-
- if ( !wd->sta.bChannelScan )
- {
- return;
- }
-
- if ( !wd->sta.bPassiveScan )
- {
- zfScanSendProbeRequest(dev);
- #if 0
- zmw_enter_critical_section(dev);
- zfTimerSchedule(dev, ZM_EVENT_IN_SCAN, ZM_TICK_IN_SCAN);
- zmw_leave_critical_section(dev);
- #endif
- }
-}
-
-u8_t zfScanMgrScanEventTimeout(zdev_t* dev)
-{
- u16_t nextScanFrequency = 0;
- u8_t temp;
-
- zmw_get_wlan_dev(dev);
-
- zmw_declare_for_critical_section();
-
- zmw_enter_critical_section(dev);
- if ( wd->sta.scanFrequency == 0 )
- {
- zmw_leave_critical_section(dev);
- return -1;
- }
-
- nextScanFrequency = zfChGetNextChannel(dev, wd->sta.scanFrequency,
- &wd->sta.bPassiveScan);
-
- if ( (nextScanFrequency == 0xffff)
- || (wd->sta.scanFrequency == zfChGetLastChannel(dev, &temp)) )
- {
- u8_t currScanType;
- u8_t isExternalScan = 0;
- u8_t isInternalScan = 0;
-
- //zm_debug_msg1("end scan = ", KeQueryInterruptTime());
- wd->sta.scanFrequency = 0;
-
- zm_debug_msg1("scan 1 type: ", wd->sta.scanMgr.currScanType);
- zm_debug_msg1("scan channel count = ", wd->regulationTable.allowChannelCnt);
-
- //zfBssInfoRefresh(dev);
- zfTimerCancel(dev, ZM_EVENT_TIMEOUT_SCAN);
-
- if ( wd->sta.bChannelScan == FALSE )
- {
- zm_debug_msg0("WOW!! scan is cancelled\n");
- zmw_leave_critical_section(dev);
- goto report_scan_result;
- }
-
-
- currScanType = wd->sta.scanMgr.currScanType;
- switch(currScanType)
- {
- case ZM_SCAN_MGR_SCAN_EXTERNAL:
- isExternalScan = 1;
-
- if ( wd->sta.scanMgr.scanReqs[ZM_SCAN_MGR_SCAN_INTERNAL - 1] )
- {
- wd->sta.scanMgr.scanReqs[ZM_SCAN_MGR_SCAN_INTERNAL - 1] = 0;
- isInternalScan = 1;
- }
-
- break;
-
- case ZM_SCAN_MGR_SCAN_INTERNAL:
- isInternalScan = 1;
-
- if ( wd->sta.scanMgr.scanReqs[ZM_SCAN_MGR_SCAN_EXTERNAL - 1] )
- {
- // Because the external scan should pre-empts internal scan.
- // So this shall not be happened!!
- zm_assert(0);
- }
-
- break;
-
- default:
- zm_assert(0);
- break;
- }
-
- wd->sta.scanMgr.scanReqs[currScanType - 1] = 0;
- wd->sta.scanMgr.scanStartDelay = 100;
- wd->sta.scanMgr.currScanType = ZM_SCAN_MGR_SCAN_NONE;
- zmw_leave_critical_section(dev);
-
- //Set channel according to AP's configuration
- zfCoreSetFrequencyEx(dev, wd->frequency, wd->BandWidth40,
- wd->ExtOffset, zfScanMgrEventScanCompleteCb);
-
- wd->sta.bChannelScan = FALSE;
-
- #if 1
- if (zfStaIsConnected(dev))
- { // Finish site survey, reset the variable to detect using wrong frequency !
- zfHpFinishSiteSurvey(dev, 1);
- zmw_enter_critical_section(dev);
- wd->sta.ibssSiteSurveyStatus = 2;
- wd->tickIbssReceiveBeacon = 0;
- wd->sta.ibssReceiveBeaconCount = 0;
- zmw_leave_critical_section(dev);
-
- /* #5 Re-enable RIFS function after the site survey ! */
- /* This is because switch band will reset the BB register to initial value */
- if( wd->sta.rifsState == ZM_RIFS_STATE_DETECTED )
- {
- zfHpEnableRifs(dev, ((wd->sta.currentFrequency<3000)?1:0), wd->sta.EnableHT, wd->sta.HT2040);
- }
- }
- else
- {
- zfHpFinishSiteSurvey(dev, 0);
- zmw_enter_critical_section(dev);
- wd->sta.ibssSiteSurveyStatus = 0;
- zmw_leave_critical_section(dev);
- }
- #endif
-
-report_scan_result:
- /* avoid lose receive packet when site survey */
- //if ((zfStaIsConnected(dev)) && (!zfPowerSavingMgrIsSleeping(dev)))
- //{
- // zfSendNullData(dev, 0);
- //}
-
- if ( isExternalScan )//Quickly reboot
- {
- if (wd->zfcbScanNotify != NULL)
- {
- wd->zfcbScanNotify(dev, NULL);
- }
- }
-
- if ( isInternalScan )
- {
- //wd->sta.InternalScanReq = 0;
- zfStaReconnect(dev);
- }
-
- return 0;
- }
- else
- {
- wd->sta.scanFrequency = nextScanFrequency;
-
- //zmw_enter_critical_section(dev);
- zfTimerCancel(dev, ZM_EVENT_IN_SCAN);
- zmw_leave_critical_section(dev);
-
- zm_debug_msg0("scan 2");
- zfCoreSetFrequencyV2(dev, wd->sta.scanFrequency, zfScanMgrEventSetFreqCompleteCb);
-
- return 1;
- }
-}
-
-void zfScanMgrScanEventStart(zdev_t* dev)
-{
- zmw_get_wlan_dev(dev);
-
- zmw_declare_for_critical_section();
-
- if ( wd->sta.bChannelScan )
- {
- return;
- }
-
- zfPowerSavingMgrWakeup(dev);
-
- zmw_enter_critical_section(dev);
-
- if ( wd->sta.scanMgr.currScanType == ZM_SCAN_MGR_SCAN_NONE )
- {
- goto no_scan;
- }
-
- //zfBssInfoRefresh(dev);
- zfBssInfoRefresh(dev, 0);
- wd->sta.bChannelScan = TRUE;
- wd->sta.bScheduleScan = FALSE;
- zfTimerCancel(dev, ZM_EVENT_IN_SCAN);
- zfTimerCancel(dev, ZM_EVENT_TIMEOUT_SCAN);
-
- //zm_debug_msg1("start scan = ", KeQueryInterruptTime());
- wd->sta.scanFrequency = zfChGetFirstChannel(dev, &wd->sta.bPassiveScan);
- zmw_leave_critical_section(dev);
-
- /* avoid lose receive packet when site survey */
- //if ((zfStaIsConnected(dev)) && (!zfPowerSavingMgrIsSleeping(dev)))
- //{
- // zfSendNullData(dev, 1);
- //}
-// zm_debug_msg0("scan 0");
-// zfCoreSetFrequencyV2(dev, wd->sta.scanFrequency, zfScanMgrEventSetFreqCompleteCb);
-
- #if 1
- if (zfStaIsConnected(dev))
- {// If doing site survey !
- zfHpBeginSiteSurvey(dev, 1);
- zmw_enter_critical_section(dev);
- wd->sta.ibssSiteSurveyStatus = 1;
- zmw_leave_critical_section(dev);
- }
- else
- {
- zfHpBeginSiteSurvey(dev, 0);
- zmw_enter_critical_section(dev);
- wd->sta.ibssSiteSurveyStatus = 0;
- zmw_leave_critical_section(dev);
- }
- #endif
-
- zm_debug_msg0("scan 0");
- zfCoreSetFrequencyV2(dev, wd->sta.scanFrequency, zfScanMgrEventSetFreqCompleteCb);
-
- return;
-
-no_scan:
- zmw_leave_critical_section(dev);
- return;
-}
projects / mv-sheeva.git / blobdiff