card.c

VIA VT6656 USB 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: card.c
 * Purpose: Provide functions to setup NIC operation mode 
 * Functions:
 *      s_vSafeResetTx - Rest Tx
 *      CARDvSetRSPINF - Set RSPINF
 *      vUpdateIFS - Update slotTime,SIFS,DIFS, and EIFS
 *      CARDvUpdateBasicTopRate - Update BasicTopRate
 *      CARDbAddBasicRate - Add to BasicRateSet
 *      CARDbSetBasicRate - Set Basic Tx Rate
 *      CARDbIsOFDMinBasicRate - Check if any OFDM rate is in BasicRateSet
 *      CARDvSetLoopbackMode - Set Loopback mode
 *      CARDbSoftwareReset - Sortware reset NIC
 *      CARDqGetTSFOffset - Caculate TSFOffset
 *      CARDbGetCurrentTSF - Read Current NIC TSF counter
 *      CARDqGetNextTBTT - Caculate Next Beacon TSF counter
 *      CARDvSetFirstNextTBTT - Set NIC Beacon time
 *      CARDvUpdateNextTBTT - Sync. NIC Beacon time
 *      CARDbRadioPowerOff - Turn Off NIC Radio Power
 *      CARDbRadioPowerOn - Turn On NIC Radio Power
 *      CARDbSetWEPMode - Set NIC Wep mode
 *      CARDbSetTxPower - Set NIC tx power
 *
 * Revision History:
 *      06-10-2003 Bryan YC Fan:  Re-write codes to support VT3253 spec.
 *      08-26-2003 Kyle Hsu:      Modify the defination type of dwIoBase.
 *      09-01-2003 Bryan YC Fan:  Add vUpdateIFS(). 
 *
 */

#if !defined(__TMACRO_H__)
#include "tmacro.h"
#endif
#if !defined(__CARD_H__)
#include "card.h"
#endif
#if !defined(__TBIT_H__)
#include "tbit.h"
#endif
#if !defined(__BASEBAND_H__)
#include "baseband.h"
#endif
#if !defined(__MAC_H__)
#include "mac.h"
#endif
#if !defined(__DESC_H__)
#include "desc.h"
#endif
#if !defined(__RF_H__)
#include "rf.h"
#endif
#if !defined(__POWER_H__)
#include "power.h"
#endif
#if !defined(__KEY_H__)
#include "key.h"
#endif
#if !defined(__RC4_H__)
#include "rc4.h"
#endif
#if !defined(__COUNTRY_H__)
#include "country.h"
#endif
#if !defined(__UMEM_H__)
#include "umem.h"
#endif
#if !defined(__DATARATE_H__)
#include "datarate.h"
#endif
#if !defined(__RNDIS_H__)
#include "rndis.h"
#endif
#if !defined(__CONTROL_H__)
#include "control.h"
#endif



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

//static int          msglevel                =MSG_LEVEL_DEBUG;
static int          msglevel                =MSG_LEVEL_INFO;


/*---------------------  Static Definitions -------------------------*/
#define CB_TXPOWER_LEVEL            6

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

/*---------------------  Static Variables  --------------------------*/
//const WORD cwRXBCNTSFOff[MAX_RATE] =
//{17, 34, 96, 192, 34, 23, 17, 11, 8, 5, 4, 3};

const WORD cwRXBCNTSFOff[MAX_RATE] =
{192, 96, 34, 17, 34, 23, 17, 11, 8, 5, 4, 3};

/*---------------------  Static Functions  --------------------------*/

/*---------------------  Export Variables  --------------------------*/

/*---------------------  Export Functions  --------------------------*/
/*
 * Description: Set NIC media channel
 *
 * Parameters:
 *  In:
 *      pDevice             - The adapter to be set
 *      uConnectionChannel  - Channel to be set
 *  Out:
 *      none
 *
 * Return Value: TRUE if succeeded; FALSE if failed.
 *
 */
BOOL CARDbSetMediaChannel (PVOID pDeviceHandler, UINT uConnectionChannel)
{
PSDevice            pDevice = (PSDevice) pDeviceHandler;    
BOOL                bResult = TRUE;

    
    if (pDevice->byBBType == BB_TYPE_11A) { // 15 ~ 38
        if ((uConnectionChannel < (CB_MAX_CHANNEL_24G+1)) || (uConnectionChannel > CB_MAX_CHANNEL))
            uConnectionChannel = (CB_MAX_CHANNEL_24G+1);
    } else {
        if ((uConnectionChannel > CB_MAX_CHANNEL_24G) || (uConnectionChannel == 0)) // 1 ~ 14
            uConnectionChannel = 1;
    }
    
    // clear NAV
    MACvRegBitsOn(pDevice, MAC_REG_MACCR, MACCR_CLRNAV);
    
    // Set Channel[7] = 0 to tell H/W channel is changing now.
    MACvRegBitsOff(pDevice, MAC_REG_CHANNEL, 0x80);

    //if (pMgmt->uCurrChannel == uConnectionChannel)
    //    return bResult;

    CONTROLnsRequestOut(pDevice,
                        MESSAGE_TYPE_SELECT_CHANNLE,
                        (WORD) uConnectionChannel,
                        0,
                        0,
                        NULL
                        );
                                        
    //{{ RobertYu: 20041202
    //// TX_PE will reserve 3 us for MAX2829 A mode only, it is for better TX throughput
    
    if (pDevice->byBBType == BB_TYPE_11A) {
        pDevice->byCurPwr = 0xFF;
        RFbRawSetPower(pDevice, pDevice->abyOFDMAPwrTbl[uConnectionChannel-15], RATE_54M);
    } else if (pDevice->byBBType == BB_TYPE_11G) {
        pDevice->byCurPwr = 0xFF;
        RFbRawSetPower(pDevice, pDevice->abyOFDMPwrTbl[uConnectionChannel-1], RATE_54M);
    } else {
        pDevice->byCurPwr = 0xFF;
        RFbRawSetPower(pDevice, pDevice->abyCCKPwrTbl[uConnectionChannel-1], RATE_1M);
    }
    ControlvWriteByte(pDevice,MESSAGE_REQUEST_MACREG,MAC_REG_CHANNEL,(BYTE)(uConnectionChannel|0x80));
    return(bResult);
}

/*
 * Description: Get CCK mode basic rate
 *
 * Parameters:
 *  In:
 *      pDevice             - The adapter to be set
 *      wRateIdx            - Receiving data rate
 *  Out:
 *      none
 *
 * Return Value: response Control frame rate
 *
 */
static
WORD swGetCCKControlRate(PVOID pDeviceHandler, WORD wRateIdx)
{
    PSDevice    pDevice = (PSDevice) pDeviceHandler;    
    UINT ui = (UINT)wRateIdx;
    while (ui > RATE_1M) {
        if (pDevice->wBasicRate & ((WORD)1 << ui)) {
            return (WORD)ui;
        }
        ui --;
    }
    return (WORD)RATE_1M;
}

/*
 * Description: Get OFDM mode basic rate
 *
 * Parameters:
 *  In:
 *      pDevice             - The adapter to be set
 *      wRateIdx            - Receiving data rate
 *  Out:
 *      none
 *
 * Return Value: response Control frame rate
 *
 */
static
WORD swGetOFDMControlRate (PVOID pDeviceHandler, WORD wRateIdx)
{
    PSDevice    pDevice = (PSDevice) pDeviceHandler;    
    UINT ui = (UINT)wRateIdx;

    DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"BASIC RATE: %X\n", pDevice->wBasicRate);

    if (!CARDbIsOFDMinBasicRate(pDevice)) {
        DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"swGetOFDMControlRate:(NO OFDM) %d\n", wRateIdx);
        if (wRateIdx > RATE_24M)
            wRateIdx = RATE_24M;
        return wRateIdx;
    }
    while (ui > RATE_11M) {
        if (pDevice->wBasicRate & ((WORD)1 << ui)) {
            DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"swGetOFDMControlRate : %d\n", ui);
            return (WORD)ui;
        }
        ui --;
    }
    DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"swGetOFDMControlRate: 6M\n");
    return (WORD)RATE_24M;
}

/*
 * Description: Caculate TxRate and RsvTime fields for RSPINF in OFDM mode.
 *
 * Parameters:
 *  In:
 *      wRate           - Tx Rate
 *      byPktType       - Tx Packet type
 *  Out:
 *      pbyTxRate       - pointer to RSPINF TxRate field
 *      pbyRsvTime      - pointer to RSPINF RsvTime field
 *
 * Return Value: none
 *
 */
VOID
CARDvCaculateOFDMRParameter (
    IN  WORD wRate,
    IN  BYTE byBBType,
    OUT PBYTE pbyTxRate,
    OUT PBYTE pbyRsvTime
    )
{
    switch (wRate) {
    case RATE_6M :
        if (byBBType == BB_TYPE_11A) {//5GHZ
            *pbyTxRate = 0x9B;
            *pbyRsvTime = 24;
        }
        else {
            *pbyTxRate = 0x8B;
            *pbyRsvTime = 30;
        }
        break;

    case RATE_9M :
        if (byBBType == BB_TYPE_11A) {//5GHZ
            *pbyTxRate = 0x9F;
            *pbyRsvTime = 16;
        }
        else {
            *pbyTxRate = 0x8F;
            *pbyRsvTime = 22;
        }
        break;

   case RATE_12M :
        if (byBBType == BB_TYPE_11A) {//5GHZ
            *pbyTxRate = 0x9A;
            *pbyRsvTime = 12;
        }
        else {
            *pbyTxRate = 0x8A;
            *pbyRsvTime = 18;
        }
        break;

   case RATE_18M :
        if (byBBType == BB_TYPE_11A) {//5GHZ
            *pbyTxRate = 0x9E;
            *pbyRsvTime = 8;
        }
        else {
            *pbyTxRate = 0x8E;
            *pbyRsvTime = 14;
        }
        break;

    case RATE_36M :
        if (byBBType == BB_TYPE_11A) {//5GHZ
            *pbyTxRate = 0x9D;
            *pbyRsvTime = 4;
        }
        else {
            *pbyTxRate = 0x8D;
            *pbyRsvTime = 10;
        }
        break;

    case RATE_48M :
        if (byBBType == BB_TYPE_11A) {//5GHZ
            *pbyTxRate = 0x98;
            *pbyRsvTime = 4;
        }
        else {
            *pbyTxRate = 0x88;
            *pbyRsvTime = 10;
        }
        break;

    case RATE_54M :
        if (byBBType == BB_TYPE_11A) {//5GHZ
            *pbyTxRate = 0x9C;
            *pbyRsvTime = 4;
        }
        else {
            *pbyTxRate = 0x8C;
            *pbyRsvTime = 10;
        }
        break;

    case RATE_24M :
    default :
        if (byBBType == BB_TYPE_11A) {//5GHZ
            *pbyTxRate = 0x99;
            *pbyRsvTime = 8;
        }
        else {
            *pbyTxRate = 0x89;
            *pbyRsvTime = 14;
        }
        break;
    }
}

/*
 * Description: Set RSPINF
 *
 * Parameters:
 *  In:
 *      pDevice             - The adapter to be set
 *  Out:
 *      none
 *
 * Return Value: None.
 *
 */
void CARDvSetRSPINF (PVOID pDeviceHandler, BYTE byBBType)
{
    PSDevice    pDevice = (PSDevice) pDeviceHandler;    
    BYTE    abyServ[4] = {0,0,0,0};             // For CCK
    BYTE    abySignal[4] = {0,0,0,0};
    WORD    awLen[4] = {0,0,0,0};
    BYTE    abyTxRate[9] = {0,0,0,0,0,0,0,0,0}; // For OFDM
    BYTE    abyRsvTime[9] = {0,0,0,0,0,0,0,0,0};
    BYTE    abyData[34];
    int     i;

    //RSPINF_b_1
    BBvCaculateParameter(pDevice,
                         14,