path: root/drivers/staging/vt6656/wcmd.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: 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
 *      s_bClearBSSID_SCAN- Clear BSSID_SCAN cmd in CMD Queue
 *
 * Revision History:
 *
 */

#include "tmacro.h"
#include "device.h"
#include "mac.h"
#include "card.h"
#include "80211hdr.h"
#include "wcmd.h"
#include "wmgr.h"
#include "power.h"
#include "wctl.h"
#include "baseband.h"
#include "usbpipe.h"
#include "rxtx.h"
#include "rf.h"
#include "channel.h"
#include "iowpa.h"

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

static void s_vProbeChannel(struct vnt_private *);

static struct vnt_tx_mgmt *s_MgrMakeProbeRequest(struct vnt_private *,
	struct vnt_manager *pMgmt, u8 *pScanBSSID, PWLAN_IE_SSID pSSID,
	PWLAN_IE_SUPP_RATES pCurrRates, PWLAN_IE_SUPP_RATES pCurrExtSuppRates);

static int s_bCommandComplete(struct vnt_private *);

static int s_bClearBSSID_SCAN(struct vnt_private *);

/*
 * Description:
 *      Stop AdHoc beacon during scan process
 *
 * Parameters:
 *  In:
 *      pDevice     - Pointer to the adapter
 *  Out:
 *      none
 *
 * Return Value: none
 *
 */

static void vAdHocBeaconStop(struct vnt_private *pDevice)
{
	struct vnt_manager *pMgmt = &pDevice->vnt_mgmt;
	int 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) {
		//PMESG(("STOP_BEACON: IBSSChannel = %u, ScanChannel = %u\n",
		//        pMgmt->uIBSSChannel, pMgmt->uScanChannel));
		MACvRegBitsOff(pDevice, MAC_REG_TCR, TCR_AUTOBCNTX);
	}

} /* vAdHocBeaconStop */

/*
 * Description:
 *      Restart AdHoc beacon after scan process complete
 *
 * Parameters:
 *  In:
 *      pDevice     - Pointer to the adapter
 *  Out:
 *      none
 *
 * Return Value: none
 *
 */
static void vAdHocBeaconRestart(struct vnt_private *pDevice)
{
	struct vnt_manager *pMgmt = &pDevice->vnt_mgmt;

    /*
     * 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)) {
		//PMESG(("RESTART_BEACON\n"));
		MACvRegBitsOn(pDevice, MAC_REG_TCR, TCR_AUTOBCNTX);
	}

}

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

static void s_vProbeChannel(struct vnt_private *pDevice)
{
	struct vnt_manager *pMgmt = &pDevice->vnt_mgmt;
	struct vnt_tx_mgmt *pTxPacket;
	u8 abyCurrSuppRatesG[] = {WLAN_EID_SUPP_RATES,
			8, 0x02, 0x04, 0x0B, 0x16, 0x24, 0x30, 0x48, 0x6C};
			/* 1M,   2M,   5M,   11M,  18M,  24M,  36M,  54M*/
	u8 abyCurrExtSuppRatesG[] = {WLAN_EID_EXTSUPP_RATES,
			4, 0x0C, 0x12, 0x18, 0x60};
			/* 6M,   9M,   12M,  48M*/
	u8 abyCurrSuppRatesA[] = {WLAN_EID_SUPP_RATES,
			8, 0x0C, 0x12, 0x18, 0x24, 0x30, 0x48, 0x60, 0x6C};
	u8 abyCurrSuppRatesB[] = {WLAN_EID_SUPP_RATES,
			4, 0x02, 0x04, 0x0B, 0x16};
	u8 *pbyRate;
	int ii;

	if (pDevice->byBBType == BB_TYPE_11A)
		pbyRate = &abyCurrSuppRatesA[