prism2mgmt.c

来自「Linux的无线局域网方案是一个Linux设备驱动程序和子系统 一揽子方案的用」· C语言 代码 · 共 2,318 行 · 第 1/5 页

{
	int 			result = 0;
	prism2sta_priv_t	*priv = wlandev->priv;
	hfa384x_t		*hw = priv->hw;
	p80211msg_dot11req_deauthenticate_t	*msg = msgp;
	DBFENTER;

	if (!priv->ap) {

		/*** STATION ***/

		/* TODO: Decide how we're going to handle this one w/ Prism2 */
		/*       It could be entertaining since Prism2 doesn't have  */
		/*       an explicit way to control this */
		msg->resultcode.status = P80211ENUM_msgitem_status_data_ok;
		msg->resultcode.data = P80211ENUM_resultcode_not_supported;
	} else {

		/*** ACCESS POINT ***/
		hfa384x_drvr_handover(hw, msg->peerstaaddress.data.data);
		msg->resultcode.status = P80211ENUM_msgitem_status_data_ok;
		msg->resultcode.data = P80211ENUM_resultcode_success;
	}

	DBFEXIT;
	return result;
}


/*----------------------------------------------------------------
* prism2mgmt_associate
*
* Associate with an ESS.
*
* Arguments:
*	wlandev		wlan device structure
*	msgp		ptr to msg buffer
*
* Returns: 
*	0	success and done
*	<0	success, but we're waiting for something to finish.
*	>0	an error occurred while handling the message.
* Side effects:
*
* Call context:
*	process thread  (usually)
*	interrupt
----------------------------------------------------------------*/
int prism2mgmt_associate(wlandevice_t *wlandev, void *msgp)
{
	prism2sta_priv_t	*priv = (prism2sta_priv_t*)wlandev->priv;
	hfa384x_t		*hw = priv->hw;
	int 			result = 0;
	UINT16			port_type;
	p80211msg_dot11req_associate_t	*msg = msgp;
	DBFENTER;

	if (!priv->ap) {

		/*** STATION ***/

#if 0
		/* Set the TxRates */
		reg = 0x000f;
		hfa384x_drvr_setconfig16(hw, HFA384x_RID_TXRATECNTL, &reg);
#endif

		/* Set the PortType */
		port_type = 1; /* ess port */
		hfa384x_drvr_setconfig16(hw, HFA384x_RID_CNFPORTTYPE, &port_type);

#if (WLAN_HOSTIF != WLAN_USB)
		/* Enable the interrupts */
		hfa384x_setreg(hw, 0xffff, HFA384x_EVSTAT);
		hfa384x_setreg(hw, 
			(HFA384x_INTEN_INFDROP_SET(1) |
			 HFA384x_INTEN_INFO_SET(1) |
			 HFA384x_INTEN_ALLOC_SET(1) |
			 HFA384x_INTEN_TXEXC_SET(1) |
			 HFA384x_INTEN_TX_SET(1) |
			 HFA384x_INTEN_RX_SET(1)),
			HFA384x_INTEN);
#endif		
		/* Enable the Port */
		hfa384x_drvr_enable(hw, 0);
	
		/* Set the resultcode */
		msg->resultcode.status = P80211ENUM_msgitem_status_data_ok;
		msg->resultcode.data = P80211ENUM_resultcode_success;

		priv->state = WLAN_STATE_STARTED;

		if (priv->log)
			printk(KERN_INFO "%s: %s\n", "wlan-sta", "Station started.\n");
	} else {

		/*** ACCESS POINT ***/

		/* Never supported on AP */
		msg->resultcode.status = P80211ENUM_msgitem_status_data_ok;
		msg->resultcode.data = P80211ENUM_resultcode_not_supported;
	}

	DBFEXIT;
	return result;
}


/*----------------------------------------------------------------
* prism2mgmt_reassociate
*
* Renew association because of a BSS change.
*
* Arguments:
*	wlandev		wlan device structure
*	msgp		ptr to msg buffer
*
* Returns: 
*	0	success and done
*	<0	success, but we're waiting for something to finish.
*	>0	an error occurred while handling the message.
* Side effects:
*
* Call context:
*	process thread  (usually)
*	interrupt
----------------------------------------------------------------*/
int prism2mgmt_reassociate(wlandevice_t *wlandev, void *msgp)
{
	int 			result = 0;
	prism2sta_priv_t	*priv = (prism2sta_priv_t*)wlandev->priv;
	p80211msg_dot11req_reassociate_t	*msg = msgp;
	DBFENTER;

	if (!priv->ap) {

		/*** STATION ***/

		/* TODO: Not supported yet...not sure how we're going to do it */
		msg->resultcode.status = P80211ENUM_msgitem_status_data_ok;
		msg->resultcode.data = P80211ENUM_resultcode_not_supported;
	} else {

		/*** ACCESS POINT ***/

		/* Never supported on AP */
		msg->resultcode.status = P80211ENUM_msgitem_status_data_ok;
		msg->resultcode.data = P80211ENUM_resultcode_not_supported;
	}

	DBFEXIT;
	return result;
}


/*----------------------------------------------------------------
* prism2mgmt_disassociate
*
* Send a disassociation notification.
*
* Arguments:
*	wlandev		wlan device structure
*	msgp		ptr to msg buffer
*
* Returns: 
*	0	success and done
*	<0	success, but we're waiting for something to finish.
*	>0	an error occurred while handling the message.
* Side effects:
*
* Call context:
*	process thread  (usually)
*	interrupt
----------------------------------------------------------------*/
int prism2mgmt_disassociate(wlandevice_t *wlandev, void *msgp)
{
	int 			result = 0;
	prism2sta_priv_t	*priv = wlandev->priv;
	hfa384x_t		*hw = priv->hw;
	p80211msg_dot11req_disassociate_t	*msg = msgp;
	DBFENTER;

	if (!priv->ap) {

		/*** STATION ***/

		/* TODO: Not supported yet...not sure how to do it */
		msg->resultcode.status = P80211ENUM_msgitem_status_data_ok;
		msg->resultcode.data = P80211ENUM_resultcode_not_supported;
	} else {

		/*** ACCESS POINT ***/
		hfa384x_drvr_handover(hw, msg->peerstaaddress.data.data);
		msg->resultcode.status = P80211ENUM_msgitem_status_data_ok;
		msg->resultcode.data = P80211ENUM_resultcode_success;
	}

	DBFEXIT;
	return result;
}


/*----------------------------------------------------------------
* prism2mgmt_reset
*
* Reset the MAC and MSD.  The p80211 layer has it's own handling
* that should be done before and after this function.
* Procedure:
*   - disable system interrupts ??
*   - disable MAC interrupts
*   - restore system interrupts
*   - issue the MAC initialize command 
*   - clear any MSD level state (including timers, queued events,
*     etc.).  Note that if we're removing timer'd/queue events, we may 
*     need to have remained in the system interrupt disabled state.
*     We should be left in the same state that we're in following
*     driver initialization.
*
* Arguments:
*	wlandev		wlan device structure
*	msgp		ptr to msg buffer, MAY BE NULL! for a driver local
*			call.
*
* Returns: 
*	0	success and done
*	<0	success, but we're waiting for something to finish.
*	>0	an error occurred while handling the message.
* Side effects:
*
* Call context:
*	process thread, commonly wlanctl, but might be rmmod/pci_close.
----------------------------------------------------------------*/
int prism2mgmt_reset(wlandevice_t *wlandev, void *msgp)
{
	int 			result = 0;
	prism2sta_priv_t	*priv = (prism2sta_priv_t*)wlandev->priv;
	hfa384x_t		*hw = priv->hw;
	p80211msg_dot11req_reset_t	*msg = msgp;
	DBFENTER;

	/* 
	 * This is supported on both AP and STA and it's not allowed 
	 * to fail.
	 */
	if ( msgp ) {
		msg->resultcode.status = P80211ENUM_msgitem_status_data_ok;
		msg->resultcode.data = P80211ENUM_resultcode_success;
		WLAN_LOG_INFO0("dot11req_reset: the macaddress and "
			"setdefaultmib arguments are currently unsupported.\n");
	}

	/* 
	 * If we got this far, the MSD must be in the MSDRUNNING state
	 * therefore, we must stop and then restart the hw/MAC combo. 
	 */
	hfa384x_drvr_stop(hw);
	result = hfa384x_drvr_start(hw);
	if (result != 0) {
		WLAN_LOG_ERROR0("dot11req_reset: Initialize command failed,"
				" bad things will happen from here.\n");
		return 0;
	}

	DBFEXIT;
	return 0;
}


/*----------------------------------------------------------------
* prism2mgmt_start
*
* Start a BSS.  Any station can do this for IBSS, only AP for ESS.
*
* Arguments:
*	wlandev		wlan device structure
*	msgp		ptr to msg buffer
*
* Returns: 
*	0	success and done
*	<0	success, but we're waiting for something to finish.
*	>0	an error occurred while handling the message.
* Side effects:
*
* Call context:
*	process thread  (usually)
*	interrupt
----------------------------------------------------------------*/
int prism2mgmt_start(wlandevice_t *wlandev, void *msgp)
{
	int 			result = 0;
	prism2sta_priv_t	*priv = (prism2sta_priv_t*)wlandev->priv;
	hfa384x_t		*hw = priv->hw;
	p80211msg_dot11req_start_t	*msg = msgp;

	p80211pstrd_t		*pstr;	
	UINT8			bytebuf[80];
	hfa384x_bytestr_t	*p2bytestr = (hfa384x_bytestr_t*)bytebuf;
	hfa384x_PCFInfo_data_t	*pcfinfo = (hfa384x_PCFInfo_data_t*)bytebuf;
	UINT16			word;
	DBFENTER;

	if (!priv->ap) {
		/*** ADHOC IBSS ***/
		/* see if current f/w is less than 8c3 */
		if ( (priv->ident_sta_fw.major == 0 &&
			 priv->ident_sta_fw.minor < 8) || // < 0.8
			 (priv->ident_sta_fw.major == 0 &&
			  priv->ident_sta_fw.minor == 8 &&
			  priv->ident_sta_fw.variant < 3) ) {	// < 0.83
		  	/* Ad-Hoc not quite supported on Prism2 */
			msg->resultcode.status = P80211ENUM_msgitem_status_data_ok;
			msg->resultcode.data = P80211ENUM_resultcode_not_supported;
			goto done;
		}	
  
  		msg->resultcode.status = P80211ENUM_msgitem_status_data_ok;
	
		/*** STATION ***/
		/* Set the REQUIRED config items */
		/* SSID */
		pstr = (p80211pstrd_t*)&(msg->ssid.data);
		prism2mgmt_pstr2bytestr(p2bytestr, pstr);
		result = hfa384x_drvr_setconfig( hw, HFA384x_RID_CNFOWNSSID,
				bytebuf, HFA384x_RID_CNFOWNSSID_LEN);
		if ( result ) {
			WLAN_LOG_ERROR0("Failed to set SSID\n");
			goto failed;
		}

		/* bsstype - we use the default in the ap firmware */
		word = 0; /* IBSS port */
		hfa384x_drvr_setconfig16(hw, HFA384x_RID_CNFPORTTYPE, &word);

		/* beacon period */
		word = msg->beaconperiod.data;
		result = hfa384x_drvr_setconfig16(hw, HFA384x_RID_CNFAPBCNINT, &word);
		if ( result ) {
			WLAN_LOG_ERROR1("Failed to set beacon period=%d.\n", word);
			goto failed;
		}

		/* dschannel */
		word = msg->dschannel.data;
		result = hfa384x_drvr_setconfig16(hw, HFA384x_RID_CNFOWNCHANNEL, &word);
		if ( result ) {
			WLAN_LOG_ERROR1("Failed to set channel=%d.\n", word);
			goto failed;
		}
		/* Basic rates */
		word = p80211rate_to_p2bit(msg->basicrate1.data);
		if ( msg->basicrate2.status == P80211ENUM_msgitem_status_data_ok ) {
			word |= p80211rate_to_p2bit(msg->basicrate2.data);
		}
		if ( msg->basicrate3.status == P80211ENUM_msgitem_status_data_ok ) {
			word |= p80211rate_to_p2bit(msg->basicrate3.data);
		}
		if ( msg->basicrate4.status == P80211ENUM_msgitem_status_data_ok ) {
			word |= p80211rate_to_p2bit(msg->basicrate4.data);
		}
		if ( msg->basicrate5.status == P80211ENUM_msgitem_status_data_ok ) {
			word |= p80211rate_to_p2bit(msg->basicrate5.data);
		}
		if ( msg->basicrate6.status == P80211ENUM_msgitem_status_data_ok ) {
			word |= p80211rate_to_p2bit(msg->basicrate6.data);
		}
		if ( msg->basicrate7.status == P80211ENUM_msgitem_status_data_ok ) {
			word |= p80211rate_to_p2bit(msg->basicrate7.data);
		}
		if ( msg->basicrate8.status == P80211ENUM_msgitem_status_data_ok ) {
			word |= p80211rate_to_p2bit(msg->basicrate8.data);
		}
		result = hfa384x_drvr_setconfig16(hw, HFA384x_RID_CNFBASICRATES, &word);
		if ( result ) {
			WLAN_LOG_ERROR1("Failed to set basicrates=%d.\n", word);
			goto failed;
		}

		/* Operational rates (supprates and txratecontrol) */
		word = p80211rate_to_p2bit(msg->operationalrate1.data);
		if ( msg->operationalrate2.status == P80211ENUM_msgitem_status_data_ok ) {
			word |= p80211rate_to_p2bit(msg->operationalrate2.data);
		}
		if ( msg->operationalrate3.status == P80211ENUM_msgitem_status_data_ok ) {
			word |= p80211rate_to_p2bit(msg->operationalrate3.data);
		}
		if ( msg->operationalrate4.status == P80211ENUM_msgitem_status_data_ok ) {
			word |= p80211rate_to_p2bit(msg->operationalrate4.data);
		}
		if ( msg->operationalrate5.status == P80211ENUM_msgitem_status_data_ok ) {
			word |= p80211rate_to_p2bit(msg->operationalrate5.data);
		}
		if ( msg->operationalrate6.status == P80211ENUM_msgitem_status_data_ok ) {
			word |= p80211rate_to_p2bit(msg->operationalrate6.data);
		}
		if ( msg->operationalrate7.status == P80211ENUM_msgitem_status_data_ok ) {
			word |= p80211rate_to_p2bit(msg->operationalrate7.data);
		}
		if ( msg->operationalrate8.status == P80211ENUM_msgitem_status_data_ok ) {
			word |= p80211rate_to_p2bit(msg->operationalrate8.data);
		}
		result = hfa384x_drvr_setconfig16(hw, HFA384x_RID_CNFSUPPRATES, &word);
		if ( result ) {
			WLAN_LOG_ERROR1("Failed to set supprates=%d.\n", word);
			goto failed;
		}

 		result = hfa384x_drvr_setconfig16(hw, HFA384x_RID_TXRATECNTL, &word);
		if ( result ) {
			WLAN_LOG_ERROR1("Failed to set txrates=%d.\n", word);
			goto failed;
		}

#if (WLAN_HOSTIF != WLAN_USB)
		/* Enable the interrupts */
		word = HFA384x_INTEN_INFDROP_SET(1) |
			HFA384x_INTEN_INFO_SET(1) |
			HFA384x_INTEN_ALLOC_SET(1) |
			HFA384x_INTEN_TXEXC_SET(1) |
			HFA384x_INTEN_DTIM_SET(1) |
			HFA384x_INTEN_TX_SET(1) |
			HFA384x_INTEN_RX_SET(1);
		hfa384x_setreg(hw, 0x0, HFA384x_EVSTAT);
		hfa384x_setreg(hw, 0xffff, HFA384x_EVACK);
		hfa384x_setreg(hw, word, HFA384x_INTEN);
#endif
		/* Set the macmode so the frame setup code knows what to do */
		if ( msg->bsstype.data == P80211ENUM_bsstype_independent ) {
			wlandev->macmode = WLAN_MACMODE_IBSS_STA;
			word=2304;  /* lets extend the data length a bit */
			hfa384x_drvr_setconfig16(hw, HFA384x_RID_CNFMAXDATALEN, &word);
		}

		/* Enable the Port */
		result = hfa384x_drvr_enable(hw, 0);
		if ( result ) {
			WLAN_LOG_ERROR1("Enable macport failed, result=%d.\n", result);
			goto failed;
		}
	
		msg->resultcode.data = P80211ENUM_resultcode_success;

		priv->state = WLAN_STATE_STARTED;

		if (priv->log)
			printk(KERN_INFO "wlan-sta: IBSS started.\n");

		goto done;
	}

	/*** ACCESS POINT ***/

	msg->resultcode.status = P80211ENUM_msgitem_status_data_ok;

	/* Validate the command, if BSStype=infra is the tertiary loaded? */
	if ( msg->bsstype.data == P80211ENUM_bsstype_independent ) {
		WLAN_LOG_ERROR0("AP driver cannot create IBSS.\n");
		goto failed;
	} else if ( priv->cap_sup_sta.id != 5) {
		WLAN_LOG_ERROR0("AP driver failed to detect AP firmware.\n");
		goto failed;
	}

	/* Set the REQUIRED config items */
	/* SSID */