path: root/drivers/staging/vt6656/card.c

/*
 * 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: 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().
 *
 */

#include "tmacro.h"
#include "card.h"
#include "baseband.h"
#include "mac.h"
#include "desc.h"
#include "rf.h"
#include "power.h"
#include "key.h"
#include "rc4.h"
#include "country.h"
#include "datarate.h"
#include "rndis.h"
#include "control.h"

/*---------------------  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(void *pDeviceHandler, unsigned int 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(void *pDeviceHandler, WORD wRateIdx)
{
    PSDevice    pDevice = (PSDevice) pDeviceHandler;
    unsigned int ui = (unsigned int)wRateIdx;
    while (ui > RATE_1M) {
        if (pDevice->wBasicRate & ((WORD)1 <<