prism2sta.c

uClinux2.6上兼容PRISM2.0芯片组的USB设备驱动程序.

		WLAN_LOG_DEBUG(2,"Received powermgmt request\n");
		result = prism2mgmt_powermgmt(wlandev, msg);
		break;
	case DIDmsg_dot11req_scan :
		WLAN_LOG_DEBUG(2,"Received scan request\n");
		result = prism2mgmt_scan(wlandev, msg);
		break;
	case DIDmsg_dot11req_scan_results :
		WLAN_LOG_DEBUG(2,"Received scan_results request\n");
		result = prism2mgmt_scan_results(wlandev, msg);
		break;
	case DIDmsg_dot11req_join :
		WLAN_LOG_DEBUG(2,"Received join request\n");
		result = prism2mgmt_join(wlandev, msg);
		break;
	case DIDmsg_dot11req_authenticate :
		WLAN_LOG_DEBUG(2,"Received authenticate request\n");
		result = prism2mgmt_authenticate(wlandev, msg);
		break;
	case DIDmsg_dot11req_deauthenticate :
		WLAN_LOG_DEBUG(2,"Received mlme deauthenticate request\n");
		result = prism2mgmt_deauthenticate(wlandev, msg);
		break;
	case DIDmsg_dot11req_associate :
		WLAN_LOG_DEBUG(2,"Received mlme associate request\n");
		result = prism2mgmt_associate(wlandev, msg);
		break;
	case DIDmsg_dot11req_reassociate :
		WLAN_LOG_DEBUG(2,"Received mlme reassociate request\n");
		result = prism2mgmt_reassociate(wlandev, msg);
		break;
	case DIDmsg_dot11req_disassociate :
		WLAN_LOG_DEBUG(2,"Received mlme disassociate request\n");
		result = prism2mgmt_disassociate(wlandev, msg);
		break;
	case DIDmsg_dot11req_reset :
		WLAN_LOG_DEBUG(2,"Received mlme reset request\n");
		result = prism2mgmt_reset(wlandev, msg);
		break;
	case DIDmsg_dot11req_start :
		WLAN_LOG_DEBUG(2,"Received mlme start request\n");
		result = prism2mgmt_start(wlandev, msg);
		break;
	/*
	 * Prism2 specific messages
	 */
	case DIDmsg_p2req_join :
		WLAN_LOG_DEBUG(2,"Received p2 join request\n");
		result = prism2mgmt_p2_join(wlandev, msg);
		break;
       	case DIDmsg_p2req_readpda :
		WLAN_LOG_DEBUG(2,"Received mlme readpda request\n");
		result = prism2mgmt_readpda(wlandev, msg);
		break;
	case DIDmsg_p2req_readcis :
		WLAN_LOG_DEBUG(2,"Received mlme readcis request\n");
		result = prism2mgmt_readcis(wlandev, msg);
		break;
	case DIDmsg_p2req_auxport_state :
		WLAN_LOG_DEBUG(2,"Received mlme auxport_state request\n");
		result = prism2mgmt_auxport_state(wlandev, msg);
		break;
	case DIDmsg_p2req_auxport_read :
		WLAN_LOG_DEBUG(2,"Received mlme auxport_read request\n");
		result = prism2mgmt_auxport_read(wlandev, msg);
		break;
	case DIDmsg_p2req_auxport_write :
		WLAN_LOG_DEBUG(2,"Received mlme auxport_write request\n");
		result = prism2mgmt_auxport_write(wlandev, msg);
		break;
	case DIDmsg_p2req_low_level :
		WLAN_LOG_DEBUG(2,"Received mlme low_level request\n");
		result = prism2mgmt_low_level(wlandev, msg);
		break;
        case DIDmsg_p2req_test_command :
                WLAN_LOG_DEBUG(2,"Received mlme test_command request\n");
                result = prism2mgmt_test_command(wlandev, msg);
                break;
        case DIDmsg_p2req_mmi_read :
                WLAN_LOG_DEBUG(2,"Received mlme mmi_read request\n");
                result = prism2mgmt_mmi_read(wlandev, msg);
                break;
        case DIDmsg_p2req_mmi_write :
                WLAN_LOG_DEBUG(2,"Received mlme mmi_write request\n");
                result = prism2mgmt_mmi_write(wlandev, msg);
                break;
	case DIDmsg_p2req_ramdl_state :
		WLAN_LOG_DEBUG(2,"Received mlme ramdl_state request\n");
		result = prism2mgmt_ramdl_state(wlandev, msg);
		break;
	case DIDmsg_p2req_ramdl_write :
		WLAN_LOG_DEBUG(2,"Received mlme ramdl_write request\n");
		result = prism2mgmt_ramdl_write(wlandev, msg);
		break;
	case DIDmsg_p2req_flashdl_state :
		WLAN_LOG_DEBUG(2,"Received mlme flashdl_state request\n");
		result = prism2mgmt_flashdl_state(wlandev, msg);
		break;
	case DIDmsg_p2req_flashdl_write :
		WLAN_LOG_DEBUG(2,"Received mlme flashdl_write request\n");
		result = prism2mgmt_flashdl_write(wlandev, msg);
		break;
	case DIDmsg_p2req_dump_state :
		WLAN_LOG_DEBUG(2,"Received mlme dump_state request\n");
		result = prism2mgmt_dump_state(wlandev, msg);
		break;
	case DIDmsg_p2req_channel_info :
		WLAN_LOG_DEBUG(2,"Received mlme channel_info request\n");
		result = prism2mgmt_channel_info(wlandev, msg);
		break;
	case DIDmsg_p2req_channel_info_results :
		WLAN_LOG_DEBUG(2,"Received mlme channel_info_results request\n");
		result = prism2mgmt_channel_info_results(wlandev, msg);
		break;
	/*
	 * Linux specific messages
	 */
	case DIDmsg_lnxreq_hostwep : 
		break;   // ignore me.
        case DIDmsg_lnxreq_ifstate :
		{
		p80211msg_lnxreq_ifstate_t	*ifstatemsg;
                WLAN_LOG_DEBUG(2,"Received mlme ifstate request\n");
		ifstatemsg = (p80211msg_lnxreq_ifstate_t*)msg;
                result = prism2sta_ifstate(wlandev, ifstatemsg->ifstate.data);
		ifstatemsg->resultcode.status = 
			P80211ENUM_msgitem_status_data_ok;
		ifstatemsg->resultcode.data = result;
		result = 0;
		}
                break;
        case DIDmsg_lnxreq_wlansniff :
                WLAN_LOG_DEBUG(2,"Received mlme wlansniff request\n");
                result = prism2mgmt_wlansniff(wlandev, msg);
                break;
	case DIDmsg_lnxreq_autojoin :
		WLAN_LOG_DEBUG(2,"Received mlme autojoin request\n");
		result = prism2mgmt_autojoin(wlandev, msg);
		break;
	case DIDmsg_p2req_enable :
		WLAN_LOG_DEBUG(2,"Received mlme enable request\n");
		result = prism2mgmt_enable(wlandev, msg);
		break;
	case DIDmsg_lnxreq_commsquality: {
		p80211msg_lnxreq_commsquality_t *qualmsg;

		WLAN_LOG_DEBUG(2,"Received commsquality request\n");

		if (hw->ap)
			break;

		qualmsg = (p80211msg_lnxreq_commsquality_t*) msg;

		qualmsg->link.status = P80211ENUM_msgitem_status_data_ok;
		qualmsg->level.status = P80211ENUM_msgitem_status_data_ok;
		qualmsg->noise.status = P80211ENUM_msgitem_status_data_ok;


		qualmsg->link.data = hfa384x2host_16(hw->qual.CQ_currBSS);
		qualmsg->level.data = hfa384x2host_16(hw->qual.ASL_currBSS);
		qualmsg->noise.data = hfa384x2host_16(hw->qual.ANL_currFC);

		break;
	}
	default:
		WLAN_LOG_WARNING("Unknown mgmt request message 0x%08x", msg->msgcode);
		break;
	}

	DBFEXIT;
	return result;
}


/*----------------------------------------------------------------
* prism2sta_ifstate
*
* Interface state.  This is the primary WLAN interface enable/disable
* handler.  Following the driver/load/deviceprobe sequence, this
* function must be called with a state of "enable" before any other
* commands will be accepted.
*
* Arguments:
*	wlandev		wlan device structure
*	msgp		ptr to msg buffer
*
* Returns: 
* 	A p80211 message resultcode value.
*
* Side effects:
*
* Call context:
*	process thread  (usually)
*	interrupt
----------------------------------------------------------------*/
UINT32 prism2sta_ifstate(wlandevice_t *wlandev, UINT32 ifstate)
{
        hfa384x_t               *hw = (hfa384x_t *)wlandev->priv;
	UINT32 			result;
	DBFENTER;

	result = P80211ENUM_resultcode_implementation_failure;

	WLAN_LOG_DEBUG(2, "Current MSD state(%d), requesting(%d)\n",
	                  wlandev->msdstate, ifstate);
	switch (ifstate)
	{
	case P80211ENUM_ifstate_fwload:
		switch (wlandev->msdstate) {
		case WLAN_MSD_HWPRESENT:
			wlandev->msdstate = WLAN_MSD_FWLOAD_PENDING;
			/*
			 * Initialize the device+driver sufficiently
			 * for firmware loading.
			 */
#if (WLAN_HOSTIF != WLAN_USB)
			result=hfa384x_cmd_initialize(hw);
#else
			if ((result=hfa384x_drvr_start(hw))) {
				WLAN_LOG_ERROR(
					"hfa384x_drvr_start() failed,"
					"result=%d\n", (int)result);
				result = 
				P80211ENUM_resultcode_implementation_failure;
				wlandev->msdstate = WLAN_MSD_HWPRESENT;
				break;
			}
#endif
			wlandev->msdstate = WLAN_MSD_FWLOAD;
			result = P80211ENUM_resultcode_success;
			break;
		case WLAN_MSD_FWLOAD:
			hfa384x_cmd_initialize(hw);
			result = P80211ENUM_resultcode_success;
			break;
		case WLAN_MSD_RUNNING:
			WLAN_LOG_WARNING(
				"Cannot enter fwload state from enable state,"
				"you must disable first.\n");
			result = P80211ENUM_resultcode_invalid_parameters;
			break;
		case WLAN_MSD_HWFAIL:
		default:
			/* probe() had a problem or the msdstate contains
			 * an unrecognized value, there's nothing we can do.
			 */
			result = P80211ENUM_resultcode_implementation_failure;
			break;
		}
		break;
	case P80211ENUM_ifstate_enable:
		switch (wlandev->msdstate) {
		case WLAN_MSD_HWPRESENT:
		case WLAN_MSD_FWLOAD:
			wlandev->msdstate = WLAN_MSD_RUNNING_PENDING;
			/* Initialize the device+driver for full
			 * operation. Note that this might me an FWLOAD to
			 * to RUNNING transition so we must not do a chip
			 * or board level reset.  Note that on failure,
			 * the MSD state is set to HWPRESENT because we 
			 * can't make any assumptions about the state 
			 * of the hardware or a previous firmware load.
			 */
			if ((result=hfa384x_drvr_start(hw))) {
				WLAN_LOG_ERROR(
					"hfa384x_drvr_start() failed,"
					"result=%d\n", (int)result);
				result = 
				P80211ENUM_resultcode_implementation_failure;
				wlandev->msdstate = WLAN_MSD_HWPRESENT;
				break;
			}

			if ((result=prism2sta_getcardinfo(wlandev))) {
				WLAN_LOG_ERROR(
					"prism2sta_getcardinfo() failed,"
					"result=%d\n", (int)result);
				result = 
				P80211ENUM_resultcode_implementation_failure;
				hfa384x_drvr_stop(hw);
				wlandev->msdstate = WLAN_MSD_HWPRESENT;
				break;
			}
			if ((result=prism2sta_globalsetup(wlandev))) {
				WLAN_LOG_ERROR(
					"prism2sta_globalsetup() failed,"
					"result=%d\n", (int)result);
				result = 
				P80211ENUM_resultcode_implementation_failure;
				hfa384x_drvr_stop(hw);
				wlandev->msdstate = WLAN_MSD_HWPRESENT;
				break;
			}
			wlandev->msdstate = WLAN_MSD_RUNNING;
			hw->join_ap = 0;
			hw->join_retries = 60;
			result = P80211ENUM_resultcode_success;
			break;
		case WLAN_MSD_RUNNING:
			/* Do nothing, we're already in this state.*/
			result = P80211ENUM_resultcode_success;
			break;
		case WLAN_MSD_HWFAIL:
		default:
			/* probe() had a problem or the msdstate contains
			 * an unrecognized value, there's nothing we can do.
			 */
			result = P80211ENUM_resultcode_implementation_failure;
			break;
		}
		break;
	case P80211ENUM_ifstate_disable:
		switch (wlandev->msdstate) {
		case WLAN_MSD_HWPRESENT:
			/* Do nothing, we're already in this state.*/
			result = P80211ENUM_resultcode_success;
			break;
		case WLAN_MSD_FWLOAD:
		case WLAN_MSD_RUNNING:
			wlandev->msdstate = WLAN_MSD_HWPRESENT_PENDING;
			/*
			 * TODO: Shut down the MAC completely. Here a chip
			 * or board level reset is probably called for.
			 * After a "disable" _all_ results are lost, even
			 * those from a fwload. 
			 */
			if (!wlandev->hwremoved)
				netif_carrier_off(wlandev->netdev);

			hfa384x_drvr_stop(hw);

			wlandev->macmode = WLAN_MACMODE_NONE;
			wlandev->msdstate = WLAN_MSD_HWPRESENT;
			result = P80211ENUM_resultcode_success;
			break;
		case WLAN_MSD_HWFAIL:
		default:
			/* probe() had a problem or the msdstate contains
			 * an unrecognized value, there's nothing we can do.
			 */
			result = P80211ENUM_resultcode_implementation_failure;
			break;
		}
		break;
	default:
		result = P80211ENUM_resultcode_invalid_parameters;
		break;
	}

	DBFEXIT;
	return result;
}


/*----------------------------------------------------------------
* prism2sta_getcardinfo
*
* Collect the NICID, firmware version and any other identifiers
* we'd like to have in host-side data structures.
*
* Arguments:
*	wlandev		wlan device structure
*
* Returns: 
*	0	success
*	>0	f/w reported error
*	<0	driver reported error
*
* Side effects:
*
* Call context:
*	Either.
----------------------------------------------------------------*/
int prism2sta_getcardinfo(wlandevice_t *wlandev)
{
	int 			result = 0;
        hfa384x_t               *hw = (hfa384x_t *)wlandev->priv;
	UINT16                  temp;
	UINT8			snum[HFA384x_RID_NICSERIALNUMBER_LEN];
	char			pstr[(HFA384x_RID_NICSERIALNUMBER_LEN * 4) + 1];

	DBFENTER;

	/* Collect version and compatibility info */
	/*  Some are critical, some are not */
	/* NIC identity */
	result = hfa384x_drvr_getconfig(hw, HFA384x_RID_NICIDENTITY,
			&hw->ident_nic, sizeof(hfa384x_compident_t));
	if ( result ) {
		WLAN_LOG_ERROR("Failed to retrieve NICIDENTITY\n");
		goto failed;
	}

	/* get all the nic id fields in host byte order */
	hw->ident_nic.id = hfa384x2host_16(hw->ident_nic.id);
	hw->ident_nic.variant = hfa384x2host_16(hw->ident_nic.variant);
	hw->ident_nic.major = hfa384x2host_16(hw->ident_nic.major);
	hw->ident_nic.minor = hfa384x2host_16(hw->ident_nic.minor);

	WLAN_LOG_INFO( "ident: nic h/w: id=0x%02x %d.%d.%d\n",
			hw->ident_nic.id, hw->ident_nic.major,
			hw->ident_nic.minor, hw->ident_nic.variant);

	/* Primary f/w identity */
	result = hfa384x_drvr_getconfig(hw, HFA384x_RID_PRIIDENTITY,
			&hw->ident_pri_fw, sizeof(hfa384x_compident_t));
	if ( result ) {
		WLAN_LOG_ERROR("Failed to retrieve PRIIDENTITY\n");
		goto failed;
	}

	/* get all the private fw id fields in host byte order */
	hw->ident_pri_fw.id = hfa384x2host_16(hw->ident_pri_fw.id);
	hw->ident_pri_fw.variant = hfa384x2host_16(hw->ident_pri_fw.variant);
	hw->ident_pri_fw.major = hfa384x2host_16(hw->ident_pri_fw.major);
	hw->ident_pri_fw.minor = hfa384x2host_16(hw->ident_pri_fw.minor);

	WLAN_LOG_INFO( "ident: pri f/w: id=0x%02x %d.%d.%d\n",
			hw->ident_pri_fw.id, hw->ident_pri_fw.major,
			hw->ident_pri_fw.minor, hw->ident_pri_fw.variant);

	/* Station (Secondary?) f/w identity */
	result = hfa384x_drvr_getconfig(hw, HFA384x_RID_STAIDENTITY,
			&hw->ident_sta_fw, sizeof(hfa384x_compident_t));
	if ( result ) {
		WLAN_LOG_ERROR("Failed to retrieve STAIDENTITY\n");
		goto failed;
	}

	if (hw->ident_nic.id < 0x8000) {
		WLAN_LOG_ERROR("FATAL: Card is not an Intersil Prism2/2.5/3\n");
		result = -1;
		goto failed;
	}

	/* get all the station fw id fields in host byte order */
	hw->ident_sta_fw.id = hfa384x2host_16(hw->ident_sta_fw.id);
	hw->ident_sta_fw.variant = hfa384x2host_16(hw->ident_sta_fw.variant);
	hw->ident_sta_fw.major = hfa384x2host_16(hw->ident_sta_fw.major);
	hw->ident_sta_fw.minor = hfa384x2host_16(hw->ident_sta_fw.minor);

	/* strip out the 'special' variant bits */
	hw->mm_mods = hw->ident_sta_fw.variant & (BIT14 | BIT15);
	hw->ident_sta_fw.variant &= ~((UINT16)(BIT14 | BIT15));

	if  ( hw->ident_sta_fw.id == 0x1f ) {
		hw->ap = 0;
		WLAN_LOG_INFO( 
			"ident: sta f/w: id=0x%02x %d.%d.%d\n",
			hw->ident_sta_fw.id, hw->ident_sta_fw.major,
			hw->ident_sta_fw.minor, hw->ident_sta_fw.variant);
	} else {
		hw->ap = 1;
		WLAN_LOG_INFO(
			"ident:  ap f/w: id=0x%02x %d.%d.%d\n",
			hw->ident_sta_fw.id, hw->ident_sta_fw.major,
			hw->ident_sta_fw.minor, hw->ident_sta_fw.variant);
	}

	/* Compatibility range, Modem supplier */
	result = hfa384x_drvr_getconfig(hw, HFA384x_RID_MFISUPRANGE,
			&hw->cap_sup_mfi, sizeof(hfa384x_caplevel_t));
	if ( result ) {
		WLAN_LOG_ERROR("Failed to retrieve MFISUPRANGE\n");
		goto failed;