diff options
author | merge <null@invalid> | 2009-01-22 13:55:32 +0000 |
---|---|---|
committer | Andy Green <agreen@octopus.localdomain> | 2009-01-22 13:55:32 +0000 |
commit | aa6f5ffbdba45aa8e19e5048648fc6c7b25376d3 (patch) | |
tree | fbb786d0ac6f8a774fd834e9ce951197e60fbffa /drivers/staging/otus/80211core/cscanmgr.c | |
parent | f2d78193eae5dccd3d588d2c8ea0866efc368332 (diff) |
MERGE-via-pending-tracking-hist-MERGE-via-stable-tracking-MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040-1232632141
pending-tracking-hist top was MERGE-via-stable-tracking-MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040-1232632141 / fdf777a63bcb59e0dfd78bfe2c6242e01f6d4eb9 ... parent commitmessage:
From: merge <null@invalid>
MERGE-via-stable-tracking-hist-MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040
stable-tracking-hist top was MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040 / 90463bfd2d5a3c8b52f6e6d71024a00e052b0ced ... parent commitmessage:
From: merge <null@invalid>
MERGE-via-mokopatches-tracking-hist-fix-stray-endmenu-patch
mokopatches-tracking-hist top was fix-stray-endmenu-patch / 3630e0be570de8057e7f8d2fe501ed353cdf34e6 ... parent commitmessage:
From: Andy Green <andy@openmoko.com>
fix-stray-endmenu.patch
Signed-off-by: Andy Green <andy@openmoko.com>
Diffstat (limited to 'drivers/staging/otus/80211core/cscanmgr.c')
-rw-r--r-- | drivers/staging/otus/80211core/cscanmgr.c | 535 |
1 files changed, 535 insertions, 0 deletions
diff --git a/drivers/staging/otus/80211core/cscanmgr.c b/drivers/staging/otus/80211core/cscanmgr.c new file mode 100644 index 00000000000..b32835c8759 --- /dev/null +++ b/drivers/staging/otus/80211core/cscanmgr.c @@ -0,0 +1,535 @@ +/* + * 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) +{ + zmw_get_wlan_dev(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; +} |