wcmd.c

VIA VT6655 x86下的Linux Source Code

 /*
 * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
 * All rights reserved.
 *
 * This software is copyrighted by and is the sole property of
 * VIA Networking Technologies, Inc. This software may only be used
 * in accordance with the corresponding license agreement. Any unauthorized
 * use, duplication, transmission, distribution, or disclosure of this
 * software is expressly forbidden.
 *
 * This software is provided by VIA Networking Technologies, Inc. "as is"
 * and any express or implied warranties, including, but not limited to, the
 * implied warranties of merchantability and fitness for a particular purpose
 * are disclaimed. In no event shall VIA Networking Technologies, Inc.
 * be liable for any direct, indirect, incidental, special, exemplary, or
 * consequential damages.
 *
 *
 * File: wcmd.c
 *
 * Purpose: Handles the management command interface functions
 *
 * Author: Lyndon Chen
 *
 * Date: May 8, 2003
 *
 * Functions: 
 *      s_vProbeChannel - Active scan channel
 *      s_MgrMakeProbeRequest - Make ProbeRequest packet
 *      CommandTimer - Timer function to handle command
 *      s_bCommandComplete - Command Complete function
 *      bScheduleCommand - Push Command and wait Command Scheduler to do
 *      vCommandTimer- Command call back functions
 *      vCommandTimerWait- Call back timer 
 *      bClearBSSID_SCAN- Clear BSSID_SCAN cmd in CMD Queue 
 *
 * Revision History:
 *
 */
 



#if !defined(__TTYPE_H__)
#include "ttype.h"
#endif
#if !defined(__TMACRO_H__)
#include "tmacro.h"
#endif
#if !defined(__DEVICE_H__)
#include "device.h"
#endif
#if !defined(__MAC_H__)
#include "mac.h"
#endif
#if !defined(__CARD_H__)
#include "card.h"
#endif
#if !defined(__80211HDR_H__)
#include "80211hdr.h"
#endif
#if !defined(__WCMD_H__)
#include "wcmd.h"
#endif
#if !defined(__WMGR_H__)
#include "wmgr.h"
#endif
#if !defined(__POWER_H__)
#include "power.h"
#endif
#if !defined(__WCTL_H__)
#include "wctl.h"
#endif
#if !defined(__CARD_H__)
#include "card.h"
#endif
#if !defined(__BASEBAND_H__)
#include "baseband.h"
#endif
#if !defined(__UMEM_H__)
#include "umem.h"
#endif
#if !defined(__RXTX_H__)
#include "rxtx.h"
#endif
#if !defined(__RF_H__)
#include "rf.h"
#endif

/*---------------------  Static Definitions -------------------------*/




/*---------------------  Static Classes  ----------------------------*/

/*---------------------  Static Variables  --------------------------*/
static int          msglevel                =MSG_LEVEL_INFO;
//static int          msglevel                =MSG_LEVEL_DEBUG;
/*---------------------  Static Functions  --------------------------*/

static
VOID
s_vProbeChannel(
    IN PSDevice pDevice
    );    

    
static    
PSTxMgmtPacket
s_MgrMakeProbeRequest(
    IN PSDevice pDevice,
    IN PSMgmtObject pMgmt, 
    IN PBYTE pScanBSSID,
    IN PWLAN_IE_SSID pSSID,
    IN PWLAN_IE_SUPP_RATES pCurrRates,
    IN PWLAN_IE_SUPP_RATES pCurrExtSuppRates    
    );

static
BOOL
s_bCommandComplete (
    PSDevice pDevice
    );
    
/*---------------------  Export Variables  --------------------------*/


/*---------------------  Export Functions  --------------------------*/


/*
 * Description:
 *      Stop AdHoc beacon during scan process
 *
 * Parameters:
 *  In:
 *      pDevice     - Pointer to the adapter
 *  Out:
 *      none
 *
 * Return Value: none
 *
 */
static
void
vAdHocBeaconStop(PSDevice  pDevice)
{

    PSMgmtObject    pMgmt = &(pDevice->sMgmtObj);
    BOOL            bStop;
    
    /*
     * temporarily stop Beacon packet for AdHoc Server
     * if all of the following coditions are met:
     *  (1) STA is in AdHoc mode
     *  (2) VT3253 is programmed as automatic Beacon Transmitting
     *  (3) One of the following conditions is met
     *      (3.1) AdHoc channel is in B/G band and the 
     *      current scan channel is in A band
     *      or
     *      (3.2) AdHoc channel is in A mode
     */
    bStop = FALSE;
    if ((pMgmt->eCurrMode == WMAC_MODE_IBSS_STA) &&
    (pMgmt->eCurrState >= WMAC_STATE_STARTED))
    {
        if ((pMgmt->uIBSSChannel <=  CB_MAX_CHANNEL_24G) &&
             (pMgmt->uScanChannel > CB_MAX_CHANNEL_24G))
        {
            bStop = TRUE;
        }
        if (pMgmt->uIBSSChannel >  CB_MAX_CHANNEL_24G) 
        {
            bStop = TRUE;
        }        
    }
    
    if (bStop)
    {
        MACvRegBitsOff(pDevice->PortOffset, MAC_REG_TCR, TCR_AUTOBCNTX);
    }
    
} 

/*
 * Description:
 *      Restart AdHoc beacon after scan process complete
 *
 * Parameters:
 *  In:
 *      pDevice     - Pointer to the adapter
 *  Out:
 *      none
 *
 * Return Value: none
 *
 */
static 
void
vAdHocBeaconRestart(PSDevice pDevice)
{
    PSMgmtObject    pMgmt = &(pDevice->sMgmtObj);
    
    /*
     * Restart Beacon packet for AdHoc Server
     * if all of the following coditions are met:
     *  (1) STA is in AdHoc mode
     *  (2) VT3253 is programmed as automatic Beacon Transmitting
     */
    if ((pMgmt->eCurrMode == WMAC_MODE_IBSS_STA) &&
    (pMgmt->eCurrState >= WMAC_STATE_STARTED))
    {
         MACvRegBitsOn(pDevice->PortOffset, MAC_REG_TCR, TCR_AUTOBCNTX);
    }
        
}




/*+
 * 
 * Routine Description:
 *   Prepare and send probe request management frames.
 *
 *
 * Return Value:
 *    none.
 *
-*/

static
VOID
s_vProbeChannel(
    IN PSDevice pDevice
    )
{
                                                     //1M,   2M,   5M,   11M,  18M,  24M,  36M,  54M
    BYTE abyCurrSuppRatesG[] = {WLAN_EID_SUPP_RATES, 8, 0x02, 0x04, 0x0B, 0x16, 0x24, 0x30, 0x48, 0x6C};
    BYTE abyCurrExtSuppRatesG[] = {WLAN_EID_EXTSUPP_RATES, 4, 0x0C, 0x12, 0x18, 0x60};
                                                           //6M,   9M,   12M,  48M
    BYTE abyCurrSuppRatesA[] = {WLAN_EID_SUPP_RATES, 8, 0x0C, 0x12, 0x18, 0x24, 0x30, 0x48, 0x60, 0x6C};
    BYTE abyCurrSuppRatesB[] = {WLAN_EID_SUPP_RATES, 4, 0x02, 0x04, 0x0B, 0x16};    
    PBYTE           pbyRate;    
    PSTxMgmtPacket  pTxPacket;
    PSMgmtObject    pMgmt = pDevice->pMgmt;
    UINT            ii;


    if (pDevice->eCurrentPHYType == PHY_TYPE_11A) {
        pbyRate = &abyCurrSuppRatesA[0];
    } else if (pDevice->eCurrentPHYType == PHY_TYPE_11B) {
        pbyRate = &abyCurrSuppRatesB[0];
    } else {
        pbyRate = &abyCurrSuppRatesG[0];
    }        
    // build an assocreq frame and send it 
    pTxPacket = s_MgrMakeProbeRequest
                (
                  pDevice,
                  pMgmt, 
                  pMgmt->abyScanBSSID,
                  (PWLAN_IE_SSID)pMgmt->abyScanSSID,
                  (PWLAN_IE_SUPP_RATES)pbyRate,
                  (PWLAN_IE_SUPP_RATES)abyCurrExtSuppRatesG
                );
             
    if (pTxPacket != NULL ){
        for (ii = 0; ii < 2 ; ii++) {
            if (csMgmt_xmit(pDevice, pTxPacket) != CMD_STATUS_PENDING) {
                DEVICE_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Probe request sending fail.. \n");
            }
            else {
                DEVICE_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Probe request is sending.. \n");
            }
        }
    }

}  




/*+
 * 
 * Routine Description:
 *  Constructs an probe request frame
 *
 *
 * Return Value:
 *    A ptr to Tx frame or NULL on allocation failue
 *
-*/


PSTxMgmtPacket
s_MgrMakeProbeRequest(
    IN PSDevice pDevice,
    IN PSMgmtObject pMgmt, 
    IN PBYTE pScanBSSID,
    IN PWLAN_IE_SSID pSSID,
    IN PWLAN_IE_SUPP_RATES pCurrRates,
    IN PWLAN_IE_SUPP_RATES pCurrExtSuppRates        
    
    )
{
    PSTxMgmtPacket      pTxPacket = NULL;
    WLAN_FR_PROBEREQ    sFrame;


    pTxPacket = (PSTxMgmtPacket)pMgmt->pbyMgmtPacketPool;
    memset(pTxPacket, 0, sizeof(STxMgmtPacket) + WLAN_PROBEREQ_FR_MAXLEN);
    pTxPacket->p80211Header = (PUWLAN_80211HDR)((PBYTE)pTxPacket + sizeof(STxMgmtPacket));
    sFrame.pBuf = (PBYTE)pTxPacket->p80211Header;
    sFrame.len = WLAN_PROBEREQ_FR_MAXLEN;
    vMgrEncodeProbeRequest(&sFrame);
    sFrame.pHdr->sA3.wFrameCtl = cpu_to_le16(
        (
        WLAN_SET_FC_FTYPE(WLAN_TYPE_MGR) | 
        WLAN_SET_FC_FSTYPE(WLAN_FSTYPE_PROBEREQ)
        ));
    memcpy( sFrame.pHdr->sA3.abyAddr1, pScanBSSID, WLAN_ADDR_LEN);
    memcpy( sFrame.pHdr->sA3.abyAddr2, pMgmt->abyMACAddr, WLAN_ADDR_LEN);
    memcpy( sFrame.pHdr->sA3.abyAddr3, pScanBSSID, WLAN_BSSID_LEN);
    // Copy the SSID, pSSID->len=0 indicate broadcast SSID 
    sFrame.pSSID = (PWLAN_IE_SSID)(sFrame.pBuf + sFrame.len);
    sFrame.len += pSSID->len + WLAN_IEHDR_LEN;
    memcpy(sFrame.pSSID, pSSID, pSSID->len + WLAN_IEHDR_LEN);
    sFrame.pSuppRates = (PWLAN_IE_SUPP_RATES)(sFrame.pBuf + sFrame.len);
    sFrame.len += pCurrRates->len + WLAN_IEHDR_LEN;
    memcpy(sFrame.pSuppRates, pCurrRates, pCurrRates->len + WLAN_IEHDR_LEN);
    // Copy the extension rate set 
    if (pDevice->eCurrentPHYType == PHY_TYPE_11G) {