text: /*
   *  PS3 gelic network driver.
   *
   * Copyright (C) 2007 Sony Computer Entertainment Inc.
   * Copyright 2007 Sony Corporation
   *
   * This program is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License version 2
   * as published by the Free Software Foundation.
   *
   * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
   */
  #undef DEBUG
  
  #include <linux/kernel.h>
  #include <linux/module.h>
  #include <linux/slab.h>
  
  #include <linux/etherdevice.h>
  #include <linux/ethtool.h>
  #include <linux/if_vlan.h>
  
  #include <linux/in.h>
  #include <linux/ip.h>
  #include <linux/tcp.h>
  #include <linux/wireless.h>
  #include <linux/ieee80211.h>
  #include <linux/if_arp.h>
  #include <linux/ctype.h>
  #include <linux/string.h>
  #include <net/iw_handler.h>
  
  #include <linux/dma-mapping.h>
  #include <net/checksum.h>
  #include <asm/firmware.h>
  #include <asm/ps3.h>
  #include <asm/lv1call.h>
  
  #include "ps3_gelic_net.h"
  #include "ps3_gelic_wireless.h"
  
  
  static int gelic_wl_start_scan(struct gelic_wl_info *wl, int always_scan,
  			       u8 *essid, size_t essid_len);
  static int gelic_wl_try_associate(struct net_device *netdev);
  
  /*
   * tables
   */
  
  /* 802.11b/g channel to freq in MHz */
  static const int channel_freq[] = {
  	2412, 2417, 2422, 2427, 2432,
  	2437, 2442, 2447, 2452, 2457,
  	2462, 2467, 2472, 2484
  };
  #define NUM_CHANNELS ARRAY_SIZE(channel_freq)
  
  /* in bps */
  static const int bitrate_list[] = {
  	  1000000,
  	  2000000,
  	  5500000,
  	 11000000,
  	  6000000,
  	  9000000,
  	 12000000,
  	 18000000,
  	 24000000,
  	 36000000,
  	 48000000,
  	 54000000
  };
  #define NUM_BITRATES ARRAY_SIZE(bitrate_list)
  
  /*
   * wpa2 support requires the hypervisor version 2.0 or later
   */
  static inline int wpa2_capable(void)
  {
  	return 0 <= ps3_compare_firmware_version(2, 0, 0);
  }
  
  static inline int precise_ie(void)
  {
  	return 0 <= ps3_compare_firmware_version(2, 2, 0);
  }
  /*
   * post_eurus_cmd helpers
   */
  struct eurus_cmd_arg_info {
  	int pre_arg; /* command requires arg1, arg2 at POST COMMAND */
  	int post_arg; /* command requires arg1, arg2 at GET_RESULT */
  };
  
  static const struct eurus_cmd_arg_info cmd_info[GELIC_EURUS_CMD_MAX_INDEX] = {
  	[GELIC_EURUS_CMD_SET_COMMON_CFG] = { .pre_arg = 1},
  	[GELIC_EURUS_CMD_SET_WEP_CFG]    = { .pre_arg = 1},
  	[GELIC_EURUS_CMD_SET_WPA_CFG]    = { .pre_arg = 1},
  	[GELIC_EURUS_CMD_GET_COMMON_CFG] = { .post_arg = 1},
  	[GELIC_EURUS_CMD_GET_WEP_CFG]    = { .post_arg = 1},
  	[GELIC_EURUS_CMD_GET_WPA_CFG]    = { .post_arg = 1},
  	[GELIC_EURUS_CMD_GET_RSSI_CFG]   = { .post_arg = 1},
  	[GELIC_EURUS_CMD_START_SCAN]     = { .pre_arg = 1},
  	[GELIC_EURUS_CMD_GET_SCAN]       = { .post_arg = 1},
  };
  
  #ifdef DEBUG
  static const char *cmdstr(enum gelic_eurus_command ix)
  {
  	switch (ix) {
  	case GELIC_EURUS_CMD_ASSOC:
  		return "ASSOC";
  	case GELIC_EURUS_CMD_DISASSOC:
  		return "DISASSOC";
  	case GELIC_EURUS_CMD_START_SCAN:
  		return "SCAN";
  	case GELIC_EURUS_CMD_GET_SCAN:
  		return "GET SCAN";
  	case GELIC_EURUS_CMD_SET_COMMON_CFG:
  		return "SET_COMMON_CFG";
  	case GELIC_EURUS_CMD_GET_COMMON_CFG:
  		return "GET_COMMON_CFG";
  	case GELIC_EURUS_CMD_SET_WEP_CFG:
  		return "SET_WEP_CFG";
  	case GELIC_EURUS_CMD_GET_WEP_CFG:
  		return "GET_WEP_CFG";
  	case GELIC_EURUS_CMD_SET_WPA_CFG:
  		return "SET_WPA_CFG";
  	case GELIC_EURUS_CMD_GET_WPA_CFG:
  		return "GET_WPA_CFG";
  	case GELIC_EURUS_CMD_GET_RSSI_CFG:
  		return "GET_RSSI";
  	default:
  		break;
  	}
  	return "";
  };
  #else
  static inline const char *cmdstr(enum gelic_eurus_command ix)
  {
  	return "";
  }
  #endif
  
  /* synchronously do eurus commands */
  static void gelic_eurus_sync_cmd_worker(struct work_struct *work)
  {
  	struct gelic_eurus_cmd *cmd;
  	struct gelic_card *card;
  	struct gelic_wl_info *wl;
  
  	u64 arg1, arg2;
  
  	pr_debug("%s: <-\n", __func__);
  	cmd = container_of(work, struct gelic_eurus_cmd, work);
  	BUG_ON(cmd_info[cmd->cmd].pre_arg &&
  	       cmd_info[cmd->cmd].post_arg);
  	wl = cmd->wl;
  	card = port_to_card(wl_port(wl));
  
  	if (cmd_info[cmd->cmd].pre_arg) {
  		arg1 = (cmd->buffer) ?
  			ps3_mm_phys_to_lpar(__pa(cmd->buffer)) :
  			0;
  		arg2 = cmd->buf_size;
  	} else {
  		arg1 = 0;
  		arg2 = 0;
  	}
  	init_completion(&wl->cmd_done_intr);
  	pr_debug("%s: cmd='%s' start\n", __func__, cmdstr(cmd->cmd));
  	cmd->status = lv1_net_control(bus_id(card), dev_id(card),
  				      GELIC_LV1_POST_WLAN_CMD,
  				      cmd->cmd, arg1, arg2,
  				      &cmd->tag, &cmd->size);
  	if (cmd->status) {
  		complete(&cmd->done);
  		pr_info("%s: cmd issue failed\n", __func__);
  		return;
  	}
  
  	wait_for_completion(&wl->cmd_done_intr);
  
  	if (cmd_info[cmd->cmd].post_arg) {
  		arg1 = ps3_mm_phys_to_lpar(__pa(cmd->buffer));
  		arg2 = cmd->buf_size;
  	} else {
  		arg1 = 0;
  		arg2 = 0;
  	}
  
  	cmd->status = lv1_net_control(bus_id(card), dev_id(card),
  				      GELIC_LV1_GET_WLAN_CMD_RESULT,
  				      cmd->tag, arg1, arg2,
  				      &cmd->cmd_status, &cmd->size);
  #ifdef DEBUG
  	if (cmd->status || cmd->cmd_status) {
  	pr_debug("%s: cmd done tag=%#lx arg1=%#lx, arg2=%#lx\n", __func__,
  		 cmd->tag, arg1, arg2);
  	pr_debug("%s: cmd done status=%#x cmd_status=%#lx size=%#lx\n",
  		 __func__, cmd->status, cmd->cmd_status, cmd->size);
  	}
  #endif
  	complete(&cmd->done);
  	pr_debug("%s: cmd='%s' done\n", __func__, cmdstr(cmd->cmd));
  }
  
  static struct gelic_eurus_cmd *gelic_eurus_sync_cmd(struct gelic_wl_info *wl,
  						    unsigned int eurus_cmd,
  						    void *buffer,
  						    unsigned int buf_size)
  {
  	struct gelic_eurus_cmd *cmd;
  
  	/* allocate cmd */
  	cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
  	if (!cmd)
  		return NULL;
  
  	/* initialize members */
  	cmd->cmd = eurus_cmd;
  	cmd->buffer = buffer;
  	cmd->buf_size = buf_size;
  	cmd->wl = wl;
  	INIT_WORK(&cmd->work, gelic_eurus_sync_cmd_worker);
  	init_completion(&cmd->done);
  	queue_work(wl->eurus_cmd_queue, &cmd->work);
  
  	/* wait for command completion */
  	wait_for_completion(&cmd->done);
  
  	return cmd;
  }
  
  static u32 gelic_wl_get_link(struct net_device *netdev)
  {
  	struct gelic_wl_info *wl = port_wl(netdev_port(netdev));
  	u32 ret;
  
  	pr_debug("%s: <-\n", __func__);
  	mutex_lock(&wl->assoc_stat_lock);
  	if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
  		ret = 1;
  	else
  		ret = 0;
  	mutex_unlock(&wl->assoc_stat_lock);
  	pr_debug("%s: ->\n", __func__);
  	return ret;
  }
  
  static void gelic_wl_send_iwap_event(struct gelic_wl_info *wl, u8 *bssid)
  {
  	union iwreq_data data;
  
  	memset(&data, 0, sizeof(data));
  	if (bssid)
  		memcpy(data.ap_addr.sa_data, bssid, ETH_ALEN);
  	data.ap_addr.sa_family = ARPHRD_ETHER;
  	wireless_send_event(port_to_netdev(wl_port(wl)), SIOCGIWAP,
  			    &data, NULL);
  }
  
  /*
   * wireless extension handlers and helpers
   */
  
  /* SIOGIWNAME */
  static int gelic_wl_get_name(struct net_device *dev,
  			     struct iw_request_info *info,
  			     union iwreq_data *iwreq, char *extra)
  {
  	strcpy(iwreq->name, "IEEE 802.11bg");
  	return 0;
  }
  
  static void gelic_wl_get_ch_info(struct gelic_wl_info *wl)
  {
  	struct gelic_card *card = port_to_card(wl_port(wl));
  	u64 ch_info_raw, tmp;
  	int status;
  
  	if (!test_and_set_bit(GELIC_WL_STAT_CH_INFO, &wl->stat)) {
  		status = lv1_net_control(bus_id(card), dev_id(card),
  					 GELIC_LV1_GET_CHANNEL, 0, 0, 0,
  					 &ch_info_raw,
  					 &tmp);
  		/* some fw versions may return error */
  		if (status) {
  			if (status != LV1_NO_ENTRY)
  				pr_info("%s: available ch unknown\n", __func__);
  			wl->ch_info = 0x07ff;/* 11 ch */
  		} else
  			/* 16 bits of MSB has available channels */
  			wl->ch_info = ch_info_raw >> 48;
  	}
  }
  
  /* SIOGIWRANGE */
  static int gelic_wl_get_range(struct net_device *netdev,
  			      struct iw_request_info *info,
  			      union iwreq_data *iwreq, char *extra)
  {
  	struct iw_point *point = &iwreq->data;
  	struct iw_range *range = (struct iw_range *)extra;
  	struct gelic_wl_info *wl = port_wl(netdev_port(netdev));
  	unsigned int i, chs;
  
  	pr_debug("%s: <-\n", __func__);
  	point->length = sizeof(struct iw_range);
  	memset(range, 0, sizeof(struct iw_range));
  
  	range->we_version_compiled = WIRELESS_EXT;
  	range->we_version_source = 22;
  
  	/* available channels and frequencies */
  	gelic_wl_get_ch_info(wl);
  
  	for (i = 0, chs = 0;
  	     i < NUM_CHANNELS && chs < IW_MAX_FREQUENCIES; i++)
  		if (wl->ch_info & (1 << i)) {
  			range->freq[chs].i = i + 1;
  			range->freq[chs].m = channel_freq[i];
  			range->freq[chs].e = 6;
  			chs++;
  		}
  	range->num_frequency = chs;
  	range->old_num_frequency = chs;
  	range->num_channels = chs;
  	range->old_num_channels = chs;
  
  	/* bitrates */
  	for (i = 0; i < NUM_BITRATES; i++)
  		range->bitrate[i] = bitrate_list[i];
  	range->num_bitrates = i;
  
  	/* signal levels */
  	range->max_qual.qual = 100; /* relative value */
  	range->max_qual.level = 100;
  	range->avg_qual.qual = 50;
  	range->avg_qual.level = 50;
  	range->sensitivity = 0;
  
  	/* Event capability */
  	IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
  	IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
  	IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
  
  	/* encryption capability */
  	range->enc_capa = IW_ENC_CAPA_WPA |
  		IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP |
  		IW_ENC_CAPA_4WAY_HANDSHAKE;
  	if (wpa2_capable())
  		range->enc_capa |= IW_ENC_CAPA_WPA2;
  	range->encoding_size[0] = 5;	/* 40bit WEP */
  	range->encoding_size[1] = 13;	/* 104bit WEP */
  	range->encoding_size[2] = 32;	/* WPA-PSK */
  	range->num_encoding_sizes = 3;
  	range->max_encoding_tokens = GELIC_WEP_KEYS;
  
  	/* scan capability */
  	range->scan_capa = IW_SCAN_CAPA_ESSID;
  
  	pr_debug("%s: ->\n", __func__);
  	return 0;
  
  }
  
  /* SIOC{G,S}IWSCAN */
  static int gelic_wl_set_scan(struct net_device *netdev,
  			   struct iw_request_info *info,
  			   union iwreq_data *wrqu, char *extra)
  {
  	struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
  	struct iw_scan_req *req;
  	u8 *essid = NULL;
  	size_t essid_len = 0;
  
  	if (wrqu->data.length == sizeof(struct iw_scan_req) &&
  	    wrqu->data.flags & IW_SCAN_THIS_ESSID) {
  		req = (struct iw_scan_req*)extra;
  		essid = req->essid;
  		essid_len = req->essid_len;
  		pr_debug("%s: ESSID scan =%s\n", __func__, essid);
  	}
  	return gelic_wl_start_scan(wl, 1, essid, essid_len);
  }
  
  #define OUI_LEN 3
  static const u8 rsn_oui[OUI_LEN] = { 0x00, 0x0f, 0xac };
  static const u8 wpa_oui[OUI_LEN] = { 0x00, 0x50, 0xf2 };
  
  /*
   * synthesize WPA/RSN IE data
   * See WiFi WPA specification and IEEE 802.11-2007 7.3.2.25
   * for the format
   */
  static size_t gelic_wl_synthesize_ie(u8 *buf,
  				     struct gelic_eurus_scan_info *scan)
  {
  
  	const u8 *oui_header;
  	u8 *start = buf;
  	int rsn;
  	int ccmp;
  
  	pr_debug("%s: <- sec=%16x\n", __func__, scan->security);
  	switch (be16_to_cpu(scan->security) & GELIC_EURUS_SCAN_SEC_MASK) {
  	case GELIC_EURUS_SCAN_SEC_WPA:
  		rsn = 0;
  		break;
  	case GELIC_EURUS_SCAN_SEC_WPA2:
  		rsn = 1;
  		break;
  	default:
  		/* WEP or none.  No IE returned */
  		return 0;
  	}
  
  	switch (be16_to_cpu(scan->security) & GELIC_EURUS_SCAN_SEC_WPA_MASK) {
  	case GELIC_EURUS_SCAN_SEC_WPA_TKIP:
  		ccmp = 0;
  		break;
  	case GELIC_EURUS_SCAN_SEC_WPA_AES:
  		ccmp = 1;
  		break;
  	default:
  		if (rsn) {
  			ccmp = 1;
  			pr_info("%s: no cipher info. defaulted to CCMP\n",
  				__func__);
  		} else {
  			ccmp = 0;
  			pr_info("%s: no cipher info. defaulted to TKIP\n",
  				__func__);
  		}
  	}
  
  	if (rsn)
  		oui_header = rsn_oui;
  	else
  		oui_header = wpa_oui;
  
  	/* element id */
  	if (rsn)
  		*buf++ = WLAN_EID_RSN;
  	else
  		*buf++ = WLAN_EID_VENDOR_SPECIFIC;
  
  	/* length filed; set later */
  	buf++;
  
  	/* wpa special header */
  	if (!rsn) {
  		memcpy(buf, wpa_oui, OUI_LEN);
  		buf += OUI_LEN;
  		*buf++ = 0x01;
  	}
  
  	/* version */
  	*buf++ = 0x01; /* version 1.0 */
  	*buf++ = 0x00;
  
  	/* group cipher */
  	memcpy(buf, oui_header, OUI_LEN);
  	buf += OUI_LEN;
  
  	if (ccmp)
  		*buf++ = 0x04; /* CCMP */
  	else
  		*buf++ = 0x02; /* TKIP */
  
  	/* pairwise key count always 1 */
  	*buf++ = 0x01;
  	*buf++ = 0x00;
  
  	/* pairwise key suit */
  	memcpy(buf, oui_header, OUI_LEN);
  	buf += OUI_LEN;
  	if (ccmp)
  		*buf++ = 0x04; /* CCMP */
  	else
  		*buf++ = 0x02; /* TKIP */
  
  	/* AKM count is 1 */
  	*buf++ = 0x01;
  	*buf++ = 0x00;
  
  	/* AKM suite is assumed as PSK*/
  	memcpy(buf, oui_header, OUI_LEN);
  	buf += OUI_LEN;
  	*buf++ = 0x02; /* PSK */
  
  	/* RSN capabilities is 0 */
  	*buf++ = 0x00;
  	*buf++ = 0x00;
  
  	/* set length field */
  	start[1] = (buf - start - 2);
  
  	pr_debug("%s: ->\n", __func__);
  	return buf - start;
  }
  
  struct ie_item {
  	u8 *data;
  	u8 len;
  };
  
  struct ie_info {
  	struct ie_item wpa;
  	struct ie_item rsn;
  };
  
  static void gelic_wl_parse_ie(u8 *data, size_t len,
  			      struct ie_info *ie_info)
  {
  	size_t data_left = len;
  	u8 *pos = data;
  	u8 item_len;
  	u8 item_id;
  
  	pr_debug("%s: data=%p len=%ld\n", __func__,
  		 data, len);
  	memset(ie_info, 0, sizeof(struct ie_info));
  
  	while (2 <= data_left) {
  		item_id = *pos++;
  		item_len = *pos++;
  		data_left -= 2;
  
  		if (data_left < item_len)
  			break;
  
  		switch (item_id) {
  		case WLAN_EID_VENDOR_SPECIFIC:
  			if ((OUI_LEN + 1 <= item_len) &&
  			    !memcmp(pos, wpa_oui, OUI_LEN) &&
  			    pos[OUI_LEN] == 0x01) {
  				ie_info->wpa.data = pos - 2;
  				ie_info->wpa.len = item_len + 2;
  			}
  			break;
  		case WLAN_EID_RSN:
  			ie_info->rsn.data = pos - 2;
  			/* length includes the header */
  			ie_info->rsn.len = item_len + 2;
  			break;
  		default:
  			pr_debug("%s: ignore %#x,%d\n", __func__,
  				 item_id, item_len);
  			break;
  		}
  		pos += item_len;
  		data_left -= item_len;
  	}
  	pr_debug("%s: wpa=%p,%d wpa2=%p,%d\n", __func__,
  		 ie_info->wpa.data, ie_info->wpa.len,
  		 ie_info->rsn.data, ie_info->rsn.len);
  }
  
  
  /*
   * translate the scan informations from hypervisor to a
   * independent format
   */
  static char *gelic_wl_translate_scan(struct net_device *netdev,
  				     struct iw_request_info *info,
  				     char *ev,
  				     char *stop,
  				     struct gelic_wl_scan_info *network)
  {
  	struct iw_event iwe;
  	struct gelic_eurus_scan_info *scan = network->hwinfo;
  	char *tmp;
  	u8 rate;
  	unsigned int i, j, len;
  	u8 buf[64]; /* arbitrary size large enough */
  
  	pr_debug("%s: <-\n", __func__);
  
  	/* first entry should be AP's mac address */
  	iwe.cmd = SIOCGIWAP;
  	iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
  	memcpy(iwe.u.ap_addr.sa_data, &scan->bssid[2], ETH_ALEN);
  	ev = iwe_stream_add_event(info, ev, stop, &iwe, IW_EV_ADDR_LEN);
  
  	/* ESSID */
  	iwe.cmd = SIOCGIWESSID;
  	iwe.u.data.flags = 1;
  	iwe.u.data.length = strnlen(scan->essid, 32);
  	ev = iwe_stream_add_point(info, ev, stop, &iwe, scan->essid);
  
  	/* FREQUENCY */
  	iwe.cmd = SIOCGIWFREQ;
  	iwe.u.freq.m = be16_to_cpu(scan->channel);
  	iwe.u.freq.e = 0; /* table value in MHz */
  	iwe.u.freq.i = 0;
  	ev = iwe_stream_add_event(info, ev, stop, &iwe, IW_EV_FREQ_LEN);
  
  	/* RATES */
  	iwe.cmd = SIOCGIWRATE;
  	iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0;
  	/* to stuff multiple values in one event */
  	tmp = ev + iwe_stream_lcp_len(info);
  	/* put them in ascendant order (older is first) */
  	i = 0;
  	j = 0;
  	pr_debug("%s: rates=%d rate=%d\n", __func__,
  		 network->rate_len, network->rate_ext_len);
  	while (i < network->rate_len) {
  		if (j < network->rate_ext_len &&
  		    ((scan->ext_rate[j] & 0x7f) < (scan->rate[i] & 0x7f)))
  		    rate = scan->ext_rate[j++] & 0x7f;
  		else
  		    rate = scan->rate[i++] & 0x7f;
  		iwe.u.bitrate.value = rate * 500000; /* 500kbps unit */
  		tmp = iwe_stream_add_value(info, ev, tmp, stop, &iwe,
  					   IW_EV_PARAM_LEN);
  	}
  	while (j < network->rate_ext_len) {
  		iwe.u.bitrate.value = (scan->ext_rate[j++] & 0x7f) * 500000;
  		tmp = iwe_stream_add_value(info, ev, tmp, stop, &iwe,
  					   IW_EV_PARAM_LEN);
  	}
  	/* Check if we added any rate */
  	if (iwe_stream_lcp_len(info) < (tmp - ev))
  		ev = tmp;
  
  	/* ENCODE */
  	iwe.cmd = SIOCGIWENCODE;
  	if (be16_to_cpu(scan->capability) & WLAN_CAPABILITY_PRIVACY)
  		iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
  	else
  		iwe.u.data.flags = IW_ENCODE_DISABLED;
  	iwe.u.data.length = 0;
  	ev = iwe_stream_add_point(info, ev, stop, &iwe, scan->essid);
  
  	/* MODE */
  	iwe.cmd = SIOCGIWMODE;
  	if (be16_to_cpu(scan->capability) &
  	    (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)) {
  		if (be16_to_cpu(scan->capability) & WLAN_CAPABILITY_ESS)
  			iwe.u.mode = IW_MODE_MASTER;
  		else
  			iwe.u.mode = IW_MODE_ADHOC;
  		ev = iwe_stream_add_event(info, ev, stop, &iwe, IW_EV_UINT_LEN);
  	}
  
  	/* QUAL */
  	iwe.cmd = IWEVQUAL;
  	iwe.u.qual.updated  = IW_QUAL_ALL_UPDATED |
  			IW_QUAL_QUAL_INVALID | IW_QUAL_NOISE_INVALID;
  	iwe.u.qual.level = be16_to_cpu(scan->rssi);
  	iwe.u.qual.qual = be16_to_cpu(scan->rssi);
  	iwe.u.qual.noise = 0;
  	ev  = iwe_stream_add_event(info, ev, stop, &iwe, IW_EV_QUAL_LEN);
  
  	/* RSN */
  	memset(&iwe, 0, sizeof(iwe));
  	if (be16_to_cpu(scan->size) <= sizeof(*scan)) {
  		/* If wpa[2] capable station, synthesize IE and put it */
  		len = gelic_wl_synthesize_ie(buf, scan);
  		if (len) {
  			iwe.cmd = IWEVGENIE;
  			iwe.u.data.length = len;
  			ev = iwe_stream_add_point(info, ev, stop, &iwe, buf);
  		}
  	} else {
  		/* this scan info has IE data */
  		struct ie_info ie_info;
  		size_t data_len;
  
  		data_len = be16_to_cpu(scan->size) - sizeof(*scan);
  
  		gelic_wl_parse_ie(scan->elements, data_len, &ie_info);
  
  		if (ie_info.wpa.len && (ie_info.wpa.len <= sizeof(buf))) {
  			memcpy(buf, ie_info.wpa.data, ie_info.wpa.len);
  			iwe.cmd = IWEVGENIE;
  			iwe.u.data.length = ie_info.wpa.len;
  			ev = iwe_stream_add_point(info, ev, stop, &iwe, buf);
  		}
  
  		if (ie_info.rsn.len && (ie_info.rsn.len <= sizeof(buf))) {
  			memset(&iwe, 0, sizeof(iwe));
  			memcpy(buf, ie_info.rsn.data, ie_info.rsn.len);
  			iwe.cmd = IWEVGENIE;
  			iwe.u.data.length = ie_info.rsn.len;
  			ev = iwe_stream_add_point(info, ev, stop, &iwe, buf);
  		}
  	}
  
  	pr_debug("%s: ->\n", __func__);
  	return ev;
  }
  
  
  static int gelic_wl_get_scan(struct net_device *netdev,
  			     struct iw_request_info *info,
  			     union iwreq_data *wrqu, char *extra)
  {
  	struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
  	struct gelic_wl_scan_info *scan_info;
  	char *ev = extra;
  	char *stop = ev + wrqu->data.length;
  	int ret = 0;
  	unsigned long this_time = jiffies;
  
  	pr_debug("%s: <-\n", __func__);
  	if (mutex_lock_interruptible(&wl->scan_lock))
  		return -EAGAIN;
  
  	switch (wl->scan_stat) {
  	case GELIC_WL_SCAN_STAT_SCANNING:
  		/* If a scan in progress, caller should call me again */
  		ret = -EAGAIN;
  		goto out;
  	case GELIC_WL_SCAN_STAT_INIT:
  		/* last scan request failed or never issued */
  		ret = -ENODEV;
  		goto out;
  	case GELIC_WL_SCAN_STAT_GOT_LIST:
  		/* ok, use current list */
  		break;
  	}
  
  	list_for_each_entry(scan_info, &wl->network_list, list) {
  		if (wl->scan_age == 0 ||
  		    time_after(scan_info->last_scanned + wl->scan_age,
  			       this_time))
  			ev = gelic_wl_translate_scan(netdev, info,
  						     ev, stop,
  						     scan_info);
  		else
  			pr_debug("%s:entry too old\n", __func__);
  
  		if (stop - ev <= IW_EV_ADDR_LEN) {
  			ret = -E2BIG;
  			goto out;
  		}
  	}
  
  	wrqu->data.length = ev - extra;
  	wrqu->data.flags = 0;
  out:
  	mutex_unlock(&wl->scan_lock);
  	pr_debug("%s: -> %d %d\n", __func__, ret, wrqu->data.length);
  	return ret;
  }
  
  #ifdef DEBUG
  static void scan_list_dump(struct gelic_wl_info *wl)
  {
  	struct gelic_wl_scan_info *scan_info;
  	int i;
  
  	i = 0;
  	list_for_each_entry(scan_info, &wl->network_list, list) {
  		pr_debug("%s: item %d\n", __func__, i++);
  		pr_debug("valid=%d eurusindex=%d last=%lx\n",
  			 scan_info->valid, scan_info->eurus_index,
  			 scan_info->last_scanned);
  		pr_debug("r_len=%d r_ext_len=%d essid_len=%d\n",
  			 scan_info->rate_len, scan_info->rate_ext_len,
  			 scan_info->essid_len);
  		/* -- */
  		pr_debug("bssid=%pM\n", &scan_info->hwinfo->bssid[2]);
  		pr_debug("essid=%s\n", scan_info->hwinfo->essid);
  	}
  }
  #endif
  
  static int gelic_wl_set_auth(struct net_device *netdev,
  			     struct iw_request_info *info,
  			     union iwreq_data *data, char *extra)
  {
  	struct iw_param *param = &data->param;
  	struct gelic_wl_info *wl = port_wl(netdev_port(netdev));
  	unsigned long irqflag;
  	int ret = 0;
  
  	pr_debug("%s: <- %d\n", __func__, param->flags & IW_AUTH_INDEX);
  	spin_lock_irqsave(&wl->lock, irqflag);
  	switch (param->flags & IW_AUTH_INDEX) {
  	case IW_AUTH_WPA_VERSION:
  		if (param->value & IW_AUTH_WPA_VERSION_DISABLED) {
  			pr_debug("%s: NO WPA selected\n", __func__);
  			wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
  			wl->group_cipher_method = GELIC_WL_CIPHER_WEP;
  			wl->pairwise_cipher_method = GELIC_WL_CIPHER_WEP;
  		}
  		if (param->value & IW_AUTH_WPA_VERSION_WPA) {
  			pr_debug("%s: WPA version 1 selected\n", __func__);
  			wl->wpa_level = GELIC_WL_WPA_LEVEL_WPA;
  			wl->group_cipher_method = GELIC_WL_CIPHER_TKIP;
  			wl->pairwise_cipher_method = GELIC_WL_CIPHER_TKIP;
  			wl->auth_method = GELIC_EURUS_AUTH_OPEN;
  		}
  		if (param->value & IW_AUTH_WPA_VERSION_WPA2) {
  			/*
  			 * As the hypervisor may not tell the cipher
  			 * information of the AP if it is WPA2,
  			 * you will not decide suitable cipher from
  			 * its beacon.
  			 * You should have knowledge about the AP's
  			 * cipher information in other method prior to
  			 * the association.
  			 */
  			if (!precise_ie())
  				pr_info("%s: WPA2 may not work\n", __func__);
  			if (wpa2_capable()) {
  				wl->wpa_level = GELIC_WL_WPA_LEVEL_WPA2;
  				wl->group_cipher_method = GELIC_WL_CIPHER_AES;
  				wl->pairwise_cipher_method =
  					GELIC_WL_CIPHER_AES;
  				wl->auth_method = GELIC_EURUS_AUTH_OPEN;
  			} else
  				ret = -EINVAL;
  		}
  		break;
  
  	case IW_AUTH_CIPHER_PAIRWISE:
  		if (param->value &
  		    (IW_AUTH_CIPHER_WEP104 | IW_AUTH_CIPHER_WEP40)) {
  			pr_debug("%s: WEP selected\n", __func__);
  			wl->pairwise_cipher_method = GELIC_WL_CIPHER_WEP;
  		}
  		if (param->value & IW_AUTH_CIPHER_TKIP) {
  			pr_debug("%s: TKIP selected\n", __func__);
  			wl->pairwise_cipher_method = GELIC_WL_CIPHER_TKIP;
  		}
  		if (param->value & IW_AUTH_CIPHER_CCMP) {
  			pr_debug("%s: CCMP selected\n", __func__);
  			wl->pairwise_cipher_method = GELIC_WL_CIPHER_AES;
  		}
  		if (param->value & IW_AUTH_CIPHER_NONE) {
  			pr_debug("%s: no auth selected\n", __func__);
  			wl->pairwise_cipher_method = GELIC_WL_CIPHER_NONE;
  		}
  		break;
  	case IW_AUTH_CIPHER_GROUP:
  		if (param->value &
  		    (IW_AUTH_CIPHER_WEP104 | IW_AUTH_CIPHER_WEP40)) {
  			pr_debug("%s: WEP selected\n", __func__);
  			wl->group_cipher_method = GELIC_WL_CIPHER_WEP;
  		}
  		if (param->value & IW_AUTH_CIPHER_TKIP) {
  			pr_debug("%s: TKIP selected\n", __func__);
  			wl->group_cipher_method = GELIC_WL_CIPHER_TKIP;
  		}
  		if (param->value & IW_AUTH_CIPHER_CCMP) {
  			pr_debug("%s: CCMP selected\n", __func__);
  			wl->group_cipher_method = GELIC_WL_CIPHER_AES;
  		}
  		if (param->value & IW_AUTH_CIPHER_NONE) {
  			pr_debug("%s: no auth selected\n", __func__);
  			wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
  		}
  		break;
  	case IW_AUTH_80211_AUTH_ALG:
  		if (param->value & IW_AUTH_ALG_SHARED_KEY) {
  			pr_debug("%s: shared key specified\n", __func__);
  			wl->auth_method = GELIC_EURUS_AUTH_SHARED;
  		} else if (param->value & IW_AUTH_ALG_OPEN_SYSTEM) {
  			pr_debug("%s: open system specified\n", __func__);
  			wl->auth_method = GELIC_EURUS_AUTH_OPEN;
  		} else
  			ret = -EINVAL;
  		break;
  
  	case IW_AUTH_WPA_ENABLED:
  		if (param->value) {
  			pr_debug("%s: WPA enabled\n", __func__);
  			wl->wpa_level = GELIC_WL_WPA_LEVEL_WPA;
  		} else {
  			pr_debug("%s: WPA disabled\n", __func__);
  			wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
  		}
  		break;
  
  	case IW_AUTH_KEY_MGMT:
  		if (param->value & IW_AUTH_KEY_MGMT_PSK)
  			break;
  		/* intentionally fall through */
  	default:
  		ret = -EOPNOTSUPP;
  		break;
  	}
  
  	if (!ret)
  		set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
  
  	spin_unlock_irqrestore(&wl->lock, irqflag);
  	pr_debug("%s: -> %d\n", __func__, ret);
  	return ret;
  }
  
  static int gelic_wl_get_auth(struct net_device *netdev,
  			     struct iw_request_info *info,
  			     union iwreq_data *iwreq, char *extra)
  {
  	struct iw_param *param = &iwreq->param;
  	struct gelic_wl_info *wl = port_wl(netdev_port(netdev));
  	unsigned long irqflag;
  	int ret = 0;
  
  	pr_debug("%s: <- %d\n", __func__, param->flags & IW_AUTH_INDEX);
  	spin_lock_irqsave(&wl->lock, irqflag);
  	switch (param->flags & IW_AUTH_INDEX) {
  	case IW_AUTH_WPA_VERSION:
  		switch (wl->wpa_level) {
  		case GELIC_WL_WPA_LEVEL_WPA:
  			param->value |= IW_AUTH_WPA_VERSION_WPA;
  			break;
  		case GELIC_WL_WPA_LEVEL_WPA2:
  			param->value |= IW_AUTH_WPA_VERSION_WPA2;
  			break;
  		default:
  			param->value |= IW_AUTH_WPA_VERSION_DISABLED;
  		}
  		break;
  
  	case IW_AUTH_80211_AUTH_ALG:
  		if (wl->auth_method == GELIC_EURUS_AUTH_SHARED)
  			param->value = IW_AUTH_ALG_SHARED_KEY;
  		else if (wl->auth_method == GELIC_EURUS_AUTH_OPEN)
  			param->value = IW_AUTH_ALG_OPEN_SYSTEM;
  		break;
  
  	case IW_AUTH_WPA_ENABLED:
  		switch (wl->wpa_level) {
  		case GELIC_WL_WPA_LEVEL_WPA:
  		case GELIC_WL_WPA_LEVEL_WPA2:
  			param->value = 1;
  			break;
  		default:
  			param->value = 0;
  			break;
  		}
  		break;
  	default:
  		ret = -EOPNOTSUPP;
  	}
  
  	spin_unlock_irqrestore(&wl->lock, irqflag);
  	pr_debug("%s: -> %d\n", __func__, ret);
  	return ret;
  }
  
  /* SIOC{S,G}IWESSID */
  static int gelic_wl_set_essid(struct net_device *netdev,
  			      struct iw_request_info *info,
  			      union iwreq_data *data, char *extra)
  {
  	struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
  	unsigned long irqflag;
  
  	pr_debug("%s: <- l=%d f=%d\n", __func__,
  		 data->essid.length, data->essid.flags);
  	if (IW_ESSID_MAX_SIZE < data->essid.length)
  		return -EINVAL;
  
  	spin_lock_irqsave(&wl->lock, irqflag);
  	if (data->essid.flags) {
  		wl->essid_len = data->essid.length;
  		memcpy(wl->essid, extra, wl->essid_len);
  		pr_debug("%s: essid = '%s'\n", __func__, extra);
  		set_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat);
  	} else {
  		pr_debug("%s: ESSID any\n", __func__);
  		clear_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat);
  	}
  	set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
  	spin_unlock_irqrestore(&wl->lock, irqflag);
  
  
  	gelic_wl_try_associate(netdev); /* FIXME */
  	pr_debug("%s: ->\n", __func__);
  	return 0;
  }
  
  static int gelic_wl_get_essid(struct net_device *netdev,
  			      struct iw_request_info *info,
  			      union iwreq_data *data, char *extra)
  {
  	struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
  	unsigned long irqflag;
  
  	pr_debug("%s: <-\n", __func__);
  	mutex_lock(&wl->assoc_stat_lock);
  	spin_lock_irqsave(&wl->lock, irqflag);
  	if (test_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat) ||
  	    wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED) {
  		memcpy(extra, wl->essid, wl->essid_len);
  		data->essid.length = wl->essid_len;
  		data->essid.flags = 1;
  	} else
  		data->essid.flags = 0;
  
  	mutex_unlock(&wl->assoc_stat_lock);
  	spin_unlock_irqrestore(&wl->lock, irqflag);
  	pr_debug("%s: -> len=%d\n", __func__, data->essid.length);
  
  	return 0;
  }
  
  /* SIO{S,G}IWENCODE */
  static int gelic_wl_set_encode(struct net_device *netdev,
  			       struct iw_request_info *info,
  			       union iwreq_data *data, char *extra)
  {
  	struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
  	struct iw_point *enc = &data->encoding;
  	__u16 flags;
  	unsigned long irqflag;
  	int key_index, index_specified;
  	int ret = 0;
  
  	pr_debug("%s: <-\n", __func__);
  	flags = enc->flags & IW_ENCODE_FLAGS;
  	key_index = enc->flags & IW_ENCODE_INDEX;
  
  	pr_debug("%s: key_index = %d\n", __func__, key_index);
  	pr_debug("%s: key_len = %d\n", __func__, enc->length);
  	pr_debug("%s: flag=%x\n", __func__, enc->flags & IW_ENCODE_FLAGS);
  
  	if (GELIC_WEP_KEYS < key_index)
  		return -EINVAL;
  
  	spin_lock_irqsave(&wl->lock, irqflag);
  	if (key_index) {
  		index_specified = 1;
  		key_index--;
  	} else {
  		index_specified = 0;
  		key_index = wl->current_key;
  	}
  
  	if (flags & IW_ENCODE_NOKEY) {
  		/* if just IW_ENCODE_NOKEY, change current key index */
  		if (!flags && index_specified) {
  			wl->current_key = key_index;
  			goto done;
  		}
  
  		if (flags & IW_ENCODE_DISABLED) {
  			if (!index_specified) {
  				/* disable encryption */
  				wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
  				wl->pairwise_cipher_method =
  					GELIC_WL_CIPHER_NONE;
  				/* invalidate all key */
  				wl->key_enabled = 0;
  			} else
  				clear_bit(key_index, &wl->key_enabled);
  		}
  
  		if (flags & IW_ENCODE_OPEN)
  			wl->auth_method = GELIC_EURUS_AUTH_OPEN;
  		if (flags & IW_ENCODE_RESTRICTED) {
  			pr_info("%s: shared key mode enabled\n", __func__);
  			wl->auth_method = GELIC_EURUS_AUTH_SHARED;
  		}
  	} else {
  		if (IW_ENCODING_TOKEN_MAX < enc->length) {
  			ret = -EINVAL;
  			goto done;
  		}
  		wl->key_len[key_index] = enc->length;
  		memcpy(wl->key[key_index], extra, enc->length);
  		set_bit(key_index, &wl->key_enabled);
  		wl->pairwise_cipher_method = GELIC_WL_CIPHER_WEP;
  		wl->group_cipher_method = GELIC_WL_CIPHER_WEP;
  	}
  	set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
  done:
  	spin_unlock_irqrestore(&wl->lock, irqflag);
  	pr_debug("%s: ->\n", __func__);
  	return ret;
  }
  
  static int gelic_wl_get_encode(struct net_device *netdev,
  			       struct iw_request_info *info,
  			       union iwreq_data *data, char *extra)
  {
  	struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
  	struct iw_point *enc = &data->encoding;
  	unsigned long irqflag;
  	unsigned int key_index, index_specified;
  	int ret = 0;
  
  	pr_debug("%s: <-\n", __func__);
  	key_index = enc->flags & IW_ENCODE_INDEX;
  	pr_debug("%s: flag=%#x point=%p len=%d extra=%p\n", __func__,
  		 enc->flags, enc->pointer, enc->length, extra);
  	if (GELIC_WEP_KEYS < key_index)
  		return -EINVAL;
  
  	spin_lock_irqsave(&wl->lock, irqflag);
  	if (key_index) {
  		index_specified = 1;
  		key_index--;
  	} else {
  		index_specified = 0;
  		key_index = wl->current_key;
  	}
  
  	if (wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
  		switch (wl->auth_method) {
  		case GELIC_EURUS_AUTH_OPEN:
  			enc->flags = IW_ENCODE_OPEN;
  			break;
  		case GELIC_EURUS_AUTH_SHARED:
  			enc->flags = IW_ENCODE_RESTRICTED;
  			break;
  		}
  	} else
  		enc->flags = IW_ENCODE_DISABLED;
  
  	if (test_bit(key_index, &wl->key_enabled)) {
  		if (enc->length < wl->key_len[key_index]) {
  			ret = -EINVAL;
  			goto done;
  		}
  		enc->length = wl->key_len[key_index];
  		memcpy(extra, wl->key[key_index], wl->key_len[key_index]);
  	} else {
  		enc->length = 0;
  		enc->flags |= IW_ENCODE_NOKEY;
  	}
  	enc->flags |= key_index + 1;
  	pr_debug("%s: -> flag=%x len=%d\n", __func__,
  		 enc->flags, enc->length);
  
  done:
  	spin_unlock_irqrestore(&wl->lock, irqflag);
  	return ret;
  }
  
  /* SIOC{S,G}IWAP */
  static int gelic_wl_set_ap(struct net_device *netdev,
  			   struct iw_request_info *info,
  			   union iwreq_data *data, char *extra)
  {
  	struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
  	unsigned long irqflag;
  
  	pr_debug("%s: <-\n", __func__);
  	if (data->ap_addr.sa_family != ARPHRD_ETHER)
  		return -EINVAL;
  
  	spin_lock_irqsave(&wl->lock, irqflag);
  	if (is_valid_ether_addr(data->ap_addr.sa_data)) {
  		memcpy(wl->bssid, data->ap_addr.sa_data,
  		       ETH_ALEN);
  		set_bit(GELIC_WL_STAT_BSSID_SET, &wl->stat);
  		set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
  		pr_debug("%s: bss=%pM\n", __func__, wl->bssid);
  	} else {
  		pr_debug("%s: clear bssid\n", __func__);
  		clear_bit(GELIC_WL_STAT_BSSID_SET, &wl->stat);
  		eth_zero_addr(wl->bssid);
  	}
  	spin_unlock_irqrestore(&wl->lock, irqflag);
  	pr_debug("%s: ->\n", __func__);
  	return 0;
  }
  
  static int gelic_wl_get_ap(struct net_device *netdev,
  			   struct iw_request_info *info,
  			   union iwreq_data *data, char *extra)
  {
  	struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
  	unsigned long irqflag;
  
  	pr_debug("%s: <-\n", __func__);
  	mutex_lock(&wl->assoc_stat_lock);
  	spin_lock_irqsave(&wl->lock, irqflag);
  	if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED) {
  		data->ap_addr.sa_family = ARPHRD_ETHER;
  		memcpy(data->ap_addr.sa_data, wl->active_bssid,
  		       ETH_ALEN);
  	} else
  		eth_zero_addr(data->ap_addr.sa_data);
  
  	spin_unlock_irqrestore(&wl->lock, irqflag);
  	mutex_unlock(&wl->assoc_stat_lock);
  	pr_debug("%s: ->\n", __func__);
  	return 0;
  }
  
  /* SIOC{S,G}IWENCODEEXT */
  static int gelic_wl_set_encodeext(struct net_device *netdev,
  				  struct iw_request_info *info,
  				  union iwreq_data *data, char *extra)
  {
  	struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
  	struct iw_point *enc = &data->encoding;
  	struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
  	__u16 alg;
  	__u16 flags;
  	unsigned long irqflag;
  	int key_index;
  	int ret = 0;
  
  	pr_debug("%s: <-\n", __func__);
  	flags = enc->flags & IW_ENCODE_FLAGS;
  	alg = ext->alg;
  	key_index = enc->flags & IW_ENCODE_INDEX;
  
  	pr_debug("%s: key_index = %d\n", __func__, key_index);
  	pr_debug("%s: key_len = %d\n", __func__, enc->length);
  	pr_debug("%s: flag=%x\n", __func__, enc->flags & IW_ENCODE_FLAGS);
  	pr_debug("%s: ext_flag=%x\n", __func__, ext->ext_flags);
  	pr_debug("%s: ext_key_len=%x\n", __func__, ext->key_len);
  
  	if (GELIC_WEP_KEYS < key_index)
  		return -EINVAL;
  
  	spin_lock_irqsave(&wl->lock, irqflag);
  	if (key_index)
  		key_index--;
  	else
  		key_index = wl->current_key;
  
  	if (!enc->length && (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY)) {
  		/* reques to change default key index */
  		pr_debug("%s: request to change default key to %d\n",
  			 __func__, key_index);
  		wl->current_key = key_index;
  		goto done;
  	}
  
  	if (alg == IW_ENCODE_ALG_NONE || (flags & IW_ENCODE_DISABLED)) {
  		pr_debug("%s: alg disabled\n", __func__);
  		wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
  		wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
  		wl->pairwise_cipher_method = GELIC_WL_CIPHER_NONE;
  		wl->auth_method = GELIC_EURUS_AUTH_OPEN; /* should be open */
  	} else if (alg == IW_ENCODE_ALG_WEP) {
  		pr_debug("%s: WEP requested\n", __func__);
  		if (flags & IW_ENCODE_OPEN) {
  			pr_debug("%s: open key mode\n", __func__);
  			wl->auth_method = GELIC_EURUS_AUTH_OPEN;
  		}
  		if (flags & IW_ENCODE_RESTRICTED) {
  			pr_debug("%s: shared key mode\n", __func__);
  			wl->auth_method = GELIC_EURUS_AUTH_SHARED;
  		}
  		if (IW_ENCODING_TOKEN_MAX < ext->key_len) {
  			pr_info("%s: key is too long %d\n", __func__,
  				ext->key_len);
  			ret = -EINVAL;
  			goto done;
  		}
  		/* OK, update the key */
  		wl->key_len[key_index] = ext->key_len;
  		memset(wl->key[key_index], 0, IW_ENCODING_TOKEN_MAX);
  		memcpy(wl->key[key_index], ext->key, ext->key_len);
  		set_bit(key_index, &wl->key_enabled);
  		/* remember wep info changed */
  		set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
  	} else if (alg == IW_ENCODE_ALG_PMK) {
  		if (ext->key_len != WPA_PSK_LEN) {
  			pr_err("%s: PSK length wrong %d\n", __func__,
  			       ext->key_len);
  			ret = -EINVAL;
  			goto done;
  		}
  		memset(wl->psk, 0, sizeof(wl->psk));
  		memcpy(wl->psk, ext->key, ext->key_len);
  		wl->psk_len = ext->key_len;
  		wl->psk_type = GELIC_EURUS_WPA_PSK_BIN;
  		/* remember PSK configured */
  		set_bit(GELIC_WL_STAT_WPA_PSK_SET, &wl->stat);
  	}
  done:
  	spin_unlock_irqrestore(&wl->lock, irqflag);
  	pr_debug("%s: ->\n", __func__);
  	return ret;
  }
  
  static int gelic_wl_get_encodeext(struct net_device *netdev,
  				  struct iw_request_info *info,
  				  union iwreq_data *data, char *extra)
  {
  	struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
  	struct iw_point *enc = &data->encoding;
  	struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
  	unsigned long irqflag;
  	int key_index;
  	int ret = 0;
  	int max_key_len;
  
  	pr_debug("%s: <-\n", __func__);
  
  	max_key_len = enc->length - sizeof(struct iw_encode_ext);
  	if (max_key_len < 0)
  		return -EINVAL;
  	key_index = enc->flags & IW_ENCODE_INDEX;
  
  	pr_debug("%s: key_index = %d\n", __func__, key_index);
  	pr_debug("%s: key_len = %d\n", __func__, enc->length);
  	pr_debug("%s: flag=%x\n", __func__, enc->flags & IW_ENCODE_FLAGS);
  
  	if (GELIC_WEP_KEYS < key_index)
  		return -EINVAL;
  
  	spin_lock_irqsave(&wl->lock, irqflag);
  	if (key_index)
  		key_index--;
  	else
  		key_index = wl->current_key;
  
  	memset(ext, 0, sizeof(struct iw_encode_ext));
  	switch (wl->group_cipher_method) {
  	case GELIC_WL_CIPHER_WEP:
  		ext->alg = IW_ENCODE_ALG_WEP;
  		enc->flags |= IW_ENCODE_ENABLED;
  		break;
  	case GELIC_WL_CIPHER_TKIP:
  		ext->alg = IW_ENCODE_ALG_TKIP;
  		enc->flags |= IW_ENCODE_ENABLED;
  		break;
  	case GELIC_WL_CIPHER_AES:
  		ext->alg = IW_ENCODE_ALG_CCMP;
  		enc->flags |= IW_ENCODE_ENABLED;
  		break;
  	case GELIC_WL_CIPHER_NONE:
  	default:
  		ext->alg = IW_ENCODE_ALG_NONE;
  		enc->flags |= IW_ENCODE_NOKEY;
  		break;
  	}
  
  	if (!(enc->flags & IW_ENCODE_NOKEY)) {
  		if (max_key_len < wl->key_len[key_index]) {
  			ret = -E2BIG;
  			goto out;
  		}
  		if (test_bit(key_index, &wl->key_enabled))
  			memcpy(ext->key, wl->key[key_index],
  			       wl->key_len[key_index]);
  		else
  			pr_debug("%s: disabled key requested ix=%d\n",
  				 __func__, key_index);
  	}
  out:
  	spin_unlock_irqrestore(&wl->lock, irqflag);
  	pr_debug("%s: ->\n", __func__);
  	return ret;
  }
  /* SIOC{S,G}IWMODE */
  static int gelic_wl_set_mode(struct net_device *netdev,
  			     struct iw_request_info *info,
  			     union iwreq_data *data, char *extra)
  {
  	__u32 mode = data->mode;
  	int ret;
  
  	pr_debug("%s: <-\n", __func__);
  	if (mode == IW_MODE_INFRA)
  		ret = 0;
  	else
  		ret = -EOPNOTSUPP;
  	pr_debug("%s: -> %d\n", __func__, ret);
  	return ret;
  }
  
  static int gelic_wl_get_mode(struct net_device *netdev,
  			     struct iw_request_info *info,
  			     union iwreq_data *data, char *extra)
  {
  	__u32 *mode = &data->mode;
  	pr_debug("%s: <-\n", __func__);
  	*mode = IW_MODE_INFRA;
  	pr_debug("%s: ->\n", __func__);
  	return 0;
  }
  
  /* SIOCGIWNICKN */
  static int gelic_wl_get_nick(struct net_device *net_dev,
  				  struct iw_request_info *info,
  				  union iwreq_data *data, char *extra)
  {
  	strcpy(extra, "gelic_wl");
  	data->data.length = strlen(extra);
  	data->data.flags = 1;
  	return 0;
  }
  
  
  /* --- */
  
  static struct iw_statistics *gelic_wl_get_wireless_stats(
  	struct net_device *netdev)
  {
  
  	struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
  	struct gelic_eurus_cmd *cmd;
  	struct iw_statistics *is;
  	struct gelic_eurus_rssi_info *rssi;
  	void *buf;
  
  	pr_debug("%s: <-\n", __func__);
  
  	buf = (void *)__get_free_page(GFP_KERNEL);
  	if (!buf)
  		return NULL;
  
  	is = &wl->iwstat;
  	memset(is, 0, sizeof(*is));
  	cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_GET_RSSI_CFG,
  				   buf, sizeof(*rssi));
  	if (cmd && !cmd->status && !cmd->cmd_status) {
  		rssi = buf;
  		is->qual.level = be16_to_cpu(rssi->rssi);
  		is->qual.updated = IW_QUAL_LEVEL_UPDATED |
  			IW_QUAL_QUAL_INVALID | IW_QUAL_NOISE_INVALID;
  	} else
  		/* not associated */
  		is->qual.updated = IW_QUAL_ALL_INVALID;
  
  	kfree(cmd);
  	free_page((unsigned long)buf);
  	pr_debug("%s: ->\n", __func__);
  	return is;
  }
  
  /*
   *  scanning helpers
   */
  static int gelic_wl_start_scan(struct gelic_wl_info *wl, int always_scan,
  			       u8 *essid, size_t essid_len)
  {
  	struct gelic_eurus_cmd *cmd;
  	int ret = 0;
  	void *buf = NULL;
  	size_t len;
  
  	pr_debug("%s: <- always=%d\n", __func__, always_scan);
  	if (mutex_lock_interruptible(&wl->scan_lock))
  		return -ERESTARTSYS;
  
  	/*
  	 * If already a scan in progress, do not trigger more
  	 */
  	if (wl->scan_stat == GELIC_WL_SCAN_STAT_SCANNING) {
  		pr_debug("%s: scanning now\n", __func__);
  		goto out;
  	}
  
  	init_completion(&wl->scan_done);
  	/*
  	 * If we have already a bss list, don't try to get new
  	 * unless we are doing an ESSID scan
  	 */
  	if ((!essid_len && !always_scan)
  	    && wl->scan_stat == GELIC_WL_SCAN_STAT_GOT_LIST) {
  		pr_debug("%s: already has the list\n", __func__);
  		complete(&wl->scan_done);
  		goto out;
  	}
  
  	/* ESSID scan ? */
  	if (essid_len && essid) {
  		buf = (void *)__get_free_page(GFP_KERNEL);
  		if (!buf) {
  			ret = -ENOMEM;
  			goto out;
  		}
  		len = IW_ESSID_MAX_SIZE; /* hypervisor always requires 32 */
  		memset(buf, 0, len);
  		memcpy(buf, essid, essid_len);
  		pr_debug("%s: essid scan='%s'\n", __func__, (char *)buf);
  	} else
  		len = 0;
  
  	/*
  	 * issue start scan request
  	 */
  	wl->scan_stat = GELIC_WL_SCAN_STAT_SCANNING;
  	cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_START_SCAN,
  				   buf, len);
  	if (!cmd || cmd->status || cmd->cmd_status) {
  		wl->scan_stat = GELIC_WL_SCAN_STAT_INIT;
  		complete(&wl->scan_done);
  		ret = -ENOMEM;
  		goto out;
  	}
  	kfree(cmd);
  out:
  	free_page((unsigned long)buf);
  	mutex_unlock(&wl->scan_lock);
  	pr_debug("%s: ->\n", __func__);
  	return ret;
  }
  
  /*
   * retrieve scan result from the chip (hypervisor)
   * this function is invoked by schedule work.
   */
  static void gelic_wl_scan_complete_event(struct gelic_wl_info *wl)
  {
  	struct gelic_eurus_cmd *cmd = NULL;
  	struct gelic_wl_scan_info *target, *tmp;
  	struct gelic_wl_scan_info *oldest = NULL;
  	struct gelic_eurus_scan_info *scan_info;
  	unsigned int scan_info_size;
  	union iwreq_data data;
  	unsigned long this_time = jiffies;
  	unsigned int data_len, i, found, r;
  	void *buf;
  
  	pr_debug("%s:start\n", __func__);
  	mutex_lock(&wl->scan_lock);
  
  	buf = (void *)__get_free_page(GFP_KERNEL);
  	if (!buf) {
  		pr_info("%s: scan buffer alloc failed\n", __func__);
  		goto out;
  	}
  
  	if (wl->scan_stat != GELIC_WL_SCAN_STAT_SCANNING) {
  		/*
  		 * stop() may be called while scanning, ignore result
  		 */
  		pr_debug("%s: scan complete when stat != scanning(%d)\n",
  			 __func__, wl->scan_stat);
  		goto out;
  	}
  
  	cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_GET_SCAN,
  				   buf, PAGE_SIZE);
  	if (!cmd || cmd->status || cmd->cmd_status) {
  		wl->scan_stat = GELIC_WL_SCAN_STAT_INIT;
  		pr_info("%s:cmd failed\n", __func__);
  		kfree(cmd);
  		goto out;
  	}
  	data_len = cmd->size;
  	pr_debug("%s: data_len = %d\n", __func__, data_len);
  	kfree(cmd);
  
  	/* OK, bss list retrieved */
  	wl->scan_stat = GELIC_WL_SCAN_STAT_GOT_LIST;
  
  	/* mark all entries are old */
  	list_for_each_entry_safe(target, tmp, &wl->network_list, list) {
  		target->valid = 0;
  		/* expire too old entries */
  		if (time_before(target->last_scanned + wl->scan_age,
  				this_time)) {
  			kfree(target->hwinfo);
  			target->hwinfo = NULL;
  			list_move_tail(&target->list, &wl->network_free_list);
  		}
  	}
  
  	/* put them in the network_list */
  	for (i = 0, scan_info_size = 0, scan_info = buf;
  	     scan_info_size < data_len;
  	     i++, scan_info_size += be16_to_cpu(scan_info->size),
  	     scan_info = (void *)scan_info + be16_to_cpu(scan_info->size)) {
  		pr_debug("%s:size=%d bssid=%pM scan_info=%p\n", __func__,
  			 be16_to_cpu(scan_info->size),
  			 &scan_info->bssid[2], scan_info);
  
  		/*
  		 * The wireless firmware may return invalid channel 0 and/or
  		 * invalid rate if the AP emits zero length SSID ie. As this
  		 * scan information is useless, ignore it
  		 */
  		if (!be16_to_cpu(scan_info->channel) || !scan_info->rate[0]) {
  			pr_debug("%s: invalid scan info\n", __func__);
  			continue;
  		}
  
  		found = 0;
  		oldest = NULL;
  		list_for_each_entry(target, &wl->network_list, list) {
  			if (ether_addr_equal(&target->hwinfo->bssid[2],
  					     &scan_info->bssid[2])) {
  				found = 1;
  				pr_debug("%s: same BBS found scanned list\n",
  					 __func__);
  				break;
  			}
  			if (!oldest ||
  			    (target->last_scanned < oldest->last_scanned))
  				oldest = target;
  		}
  
  		if (!found) {
  			/* not found in the list */
  			if (list_empty(&wl->network_free_list)) {
  				/* expire oldest */
  				target = oldest;
  			} else {
  				target = list_entry(wl->network_free_list.next,
  						    struct gelic_wl_scan_info,
  						    list);
  			}
  		}
  
  		/* update the item */
  		target->last_scanned = this_time;
  		target->valid = 1;
  		target->eurus_index = i;
  		kfree(target->hwinfo);
  		target->hwinfo = kmemdup(scan_info,
  					 be16_to_cpu(scan_info->size),
  					 GFP_KERNEL);
  		if (!target->hwinfo)
  			continue;
  
  		/* copy hw scan info */
  		target->essid_len = strnlen(scan_info->essid,
  					    sizeof(scan_info->essid));
  		target->rate_len = 0;
  		for (r = 0; r < 12; r++)
  			if (scan_info->rate[r])
  				target->rate_len++;
  		if (8 < target->rate_len)
  			pr_info("%s: AP returns %d rates\n", __func__,
  				target->rate_len);
  		target->rate_ext_len = 0;
  		for (r = 0; r < 16; r++)
  			if (scan_info->ext_rate[r])
  				target->rate_ext_len++;
  		list_move_tail(&target->list, &wl->network_list);
  	}
  	memset(&data, 0, sizeof(data));
  	wireless_send_event(port_to_netdev(wl_port(wl)), SIOCGIWSCAN, &data,
  			    NULL);
  out:
  	free_page((unsigned long)buf);
  	complete(&wl->scan_done);
  	mutex_unlock(&wl->scan_lock);
  	pr_debug("%s:end\n", __func__);
  }
  
  /*
   * Select an appropriate bss from current scan list regarding
   * current settings from userspace.
   * The caller must hold wl->scan_lock,
   * and on the state of wl->scan_state == GELIC_WL_SCAN_GOT_LIST
   */
  static void update_best(struct gelic_wl_scan_info **best,
  			struct gelic_wl_scan_info *candid,
  			int *best_weight,
  			int *weight)
  {
  	if (*best_weight < ++(*weight)) {
  		*best_weight = *weight;
  		*best = candid;
  	}
  }
  
  static
  struct gelic_wl_scan_info *gelic_wl_find_best_bss(struct gelic_wl_info *wl)
  {
  	struct gelic_wl_scan_info *scan_info;
  	struct gelic_wl_scan_info *best_bss;
  	int weight, best_weight;
  	u16 security;
  
  	pr_debug("%s: <-\n", __func__);
  
  	best_bss = NULL;
  	best_weight = 0;
  
  	list_for_each_entry(scan_info, &wl->network_list, list) {
  		pr_debug("%s: station %p\n", __func__, scan_info);
  
  		if (!scan_info->valid) {
  			pr_debug("%s: station invalid\n", __func__);
  			continue;
  		}
  
  		/* If bss specified, check it only */
  		if (test_bit(GELIC_WL_STAT_BSSID_SET, &wl->stat)) {
  			if (ether_addr_equal(&scan_info->hwinfo->bssid[2],
  					     wl->bssid)) {
  				best_bss = scan_info;
  				pr_debug("%s: bssid matched\n", __func__);
  				break;
  			} else {
  				pr_debug("%s: bssid unmached\n", __func__);
  				continue;
  			}
  		}
  
  		weight = 0;
  
  		/* security */
  		security = be16_to_cpu(scan_info->hwinfo->security) &
  			GELIC_EURUS_SCAN_SEC_MASK;
  		if (wl->wpa_level == GELIC_WL_WPA_LEVEL_WPA2) {
  			if (security == GELIC_EURUS_SCAN_SEC_WPA2)
  				update_best(&best_bss, scan_info,
  					    &best_weight, &weight);
  			else
  				continue;
  		} else if (wl->wpa_level == GELIC_WL_WPA_LEVEL_WPA) {
  			if (security == GELIC_EURUS_SCAN_SEC_WPA)
  				update_best(&best_bss, scan_info,
  					    &best_weight, &weight);
  			else
  				continue;
  		} else if (wl->wpa_level == GELIC_WL_WPA_LEVEL_NONE &&
  			   wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
  			if (security == GELIC_EURUS_SCAN_SEC_WEP)
  				update_best(&best_bss, scan_info,
  					    &best_weight, &weight);
  			else
  				continue;
  		}
  
  		/* If ESSID is set, check it */
  		if (test_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat)) {
  			if ((scan_info->essid_len == wl->essid_len) &&
  			    !strncmp(wl->essid,
  				     scan_info->hwinfo->essid,
  				     scan_info->essid_len))
  				update_best(&best_bss, scan_info,
  					    &best_weight, &weight);
  			else
  				continue;
  		}
  	}
  
  #ifdef DEBUG
  	pr_debug("%s: -> bss=%p\n", __func__, best_bss);
  	if (best_bss) {
  		pr_debug("%s:addr=%pM\n", __func__,
  			 &best_bss->hwinfo->bssid[2]);
  	}
  #endif
  	return best_bss;
  }
  
  /*
   * Setup WEP configuration to the chip
   * The caller must hold wl->scan_lock,
   * and on the state of wl->scan_state == GELIC_WL_SCAN_GOT_LIST
   */
  static int gelic_wl_do_wep_setup(struct gelic_wl_info *wl)
  {
  	unsigned int i;
  	struct gelic_eurus_wep_cfg *wep;
  	struct gelic_eurus_cmd *cmd;
  	int wep104 = 0;
  	int have_key = 0;
  	int ret = 0;
  
  	pr_debug("%s: <-\n", __func__);
  	/* we can assume no one should uses the buffer */
  	wep = (struct gelic_eurus_wep_cfg *)__get_free_page(GFP_KERNEL);
  	if (!wep)
  		return -ENOMEM;
  
  	memset(wep, 0, sizeof(*wep));
  
  	if (wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
  		pr_debug("%s: WEP mode\n", __func__);
  		for (i = 0; i < GELIC_WEP_KEYS; i++) {
  			if (!test_bit(i, &wl->key_enabled))
  				continue;
  
  			pr_debug("%s: key#%d enabled\n", __func__, i);
  			have_key = 1;
  			if (wl->key_len[i] == 13)
  				wep104 = 1;
  			else if (wl->key_len[i] != 5) {
  				pr_info("%s: wrong wep key[%d]=%d\n",
  					__func__, i, wl->key_len[i]);
  				ret = -EINVAL;
  				goto out;
  			}
  			memcpy(wep->key[i], wl->key[i], wl->key_len[i]);
  		}
  
  		if (!have_key) {
  			pr_info("%s: all wep key disabled\n", __func__);
  			ret = -EINVAL;
  			goto out;
  		}
  
  		if (wep104) {
  			pr_debug("%s: 104bit key\n", __func__);
  			wep->security = cpu_to_be16(GELIC_EURUS_WEP_SEC_104BIT);
  		} else {
  			pr_debug("%s: 40bit key\n", __func__);
  			wep->security = cpu_to_be16(GELIC_EURUS_WEP_SEC_40BIT);
  		}
  	} else {
  		pr_debug("%s: NO encryption\n", __func__);
  		wep->security = cpu_to_be16(GELIC_EURUS_WEP_SEC_NONE);
  	}
  
  	/* issue wep setup */
  	cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_SET_WEP_CFG,
  				   wep, sizeof(*wep));
  	if (!cmd)
  		ret = -ENOMEM;
  	else if (cmd->status || cmd->cmd_status)
  		ret = -ENXIO;
  
  	kfree(cmd);
  out:
  	free_page((unsigned long)wep);
  	pr_debug("%s: ->\n", __func__);
  	return ret;
  }
  
  #ifdef DEBUG
  static const char *wpasecstr(enum gelic_eurus_wpa_security sec)
  {
  	switch (sec) {
  	case GELIC_EURUS_WPA_SEC_NONE:
  		return "NONE";
  	case GELIC_EURUS_WPA_SEC_WPA_TKIP_TKIP:
  		return "WPA_TKIP_TKIP";
  	case GELIC_EURUS_WPA_SEC_WPA_TKIP_AES:
  		return "WPA_TKIP_AES";
  	case GELIC_EURUS_WPA_SEC_WPA_AES_AES:
  		return "WPA_AES_AES";
  	case GELIC_EURUS_WPA_SEC_WPA2_TKIP_TKIP:
  		return "WPA2_TKIP_TKIP";
  	case GELIC_EURUS_WPA_SEC_WPA2_TKIP_AES:
  		return "WPA2_TKIP_AES";
  	case GELIC_EURUS_WPA_SEC_WPA2_AES_AES:
  		return "WPA2_AES_AES";
  	}
  	return "";
  };
  #endif
  
  static int gelic_wl_do_wpa_setup(struct gelic_wl_info *wl)
  {
  	struct gelic_eurus_wpa_cfg *wpa;
  	struct gelic_eurus_cmd *cmd;
  	u16 security;
  	int ret = 0;
  
  	pr_debug("%s: <-\n", __func__);
  	/* we can assume no one should uses the buffer */
  	wpa = (struct gelic_eurus_wpa_cfg *)__get_free_page(GFP_KERNEL);
  	if (!wpa)
  		return -ENOMEM;
  
  	memset(wpa, 0, sizeof(*wpa));
  
  	if (!test_bit(GELIC_WL_STAT_WPA_PSK_SET, &wl->stat))
  		pr_info("%s: PSK not configured yet\n", __func__);
  
  	/* copy key */
  	memcpy(wpa->psk, wl->psk, wl->psk_len);
  
  	/* set security level */
  	if (wl->wpa_level == GELIC_WL_WPA_LEVEL_WPA2) {
  		if (wl->group_cipher_method == GELIC_WL_CIPHER_AES) {
  			security = GELIC_EURUS_WPA_SEC_WPA2_AES_AES;
  		} else {
  			if (wl->pairwise_cipher_method == GELIC_WL_CIPHER_AES &&
  			    precise_ie())
  				security = GELIC_EURUS_WPA_SEC_WPA2_TKIP_AES;
  			else
  				security = GELIC_EURUS_WPA_SEC_WPA2_TKIP_TKIP;
  		}
  	} else {
  		if (wl->group_cipher_method == GELIC_WL_CIPHER_AES) {
  			security = GELIC_EURUS_WPA_SEC_WPA_AES_AES;
  		} else {
  			if (wl->pairwise_cipher_method == GELIC_WL_CIPHER_AES &&
  			    precise_ie())
  				security = GELIC_EURUS_WPA_SEC_WPA_TKIP_AES;
  			else
  				security = GELIC_EURUS_WPA_SEC_WPA_TKIP_TKIP;
  		}
  	}
  	wpa->security = cpu_to_be16(security);
  
  	/* PSK type */
  	wpa->psk_type = cpu_to_be16(wl->psk_type);
  #ifdef DEBUG
  	pr_debug("%s: sec=%s psktype=%s\n", __func__,
  		 wpasecstr(wpa->security),
  		 (wpa->psk_type == GELIC_EURUS_WPA_PSK_BIN) ?
  		 "BIN" : "passphrase");
  #if 0
  	/*
  	 * don't enable here if you plan to submit
  	 * the debug log because this dumps your precious
  	 * passphrase/key.
  	 */
  	pr_debug("%s: psk=%s\n", __func__,
  		 (wpa->psk_type == GELIC_EURUS_WPA_PSK_BIN) ?
  		 "N/A" : wpa->psk);
  #endif
  #endif
  	/* issue wpa setup */
  	cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_SET_WPA_CFG,
  				   wpa, sizeof(*wpa));
  	if (!cmd)
  		ret = -ENOMEM;
  	else if (cmd->status || cmd->cmd_status)
  		ret = -ENXIO;
  	kfree(cmd);
  	free_page((unsigned long)wpa);
  	pr_debug("%s: --> %d\n", __func__, ret);
  	return ret;
  }
  
  /*
   * Start association. caller must hold assoc_stat_lock
   */
  static int gelic_wl_associate_bss(struct gelic_wl_info *wl,
  				  struct gelic_wl_scan_info *bss)
  {
  	struct gelic_eurus_cmd *cmd;
  	struct gelic_eurus_common_cfg *common;
  	int ret = 0;
  	unsigned long rc;
  
  	pr_debug("%s: <-\n", __func__);
  
  	/* do common config */
  	common = (struct gelic_eurus_common_cfg *)__get_free_page(GFP_KERNEL);
  	if (!common)
  		return -ENOMEM;
  
  	memset(common, 0, sizeof(*common));
  	common->bss_type = cpu_to_be16(GELIC_EURUS_BSS_INFRA);
  	common->op_mode = cpu_to_be16(GELIC_EURUS_OPMODE_11BG);
  
  	common->scan_index = cpu_to_be16(bss->eurus_index);
  	switch (wl->auth_method) {
  	case GELIC_EURUS_AUTH_OPEN:
  		common->auth_method = cpu_to_be16(GELIC_EURUS_AUTH_OPEN);
  		break;
  	case GELIC_EURUS_AUTH_SHARED:
  		common->auth_method = cpu_to_be16(GELIC_EURUS_AUTH_SHARED);
  		break;
  	}
  
  #ifdef DEBUG
  	scan_list_dump(wl);
  #endif
  	pr_debug("%s: common cfg index=%d bsstype=%d auth=%d\n", __func__,
  		 be16_to_cpu(common->scan_index),
  		 be16_to_cpu(common->bss_type),
  		 be16_to_cpu(common->auth_method));
  
  	cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_SET_COMMON_CFG,
  				   common, sizeof(*common));
  	if (!cmd || cmd->status || cmd->cmd_status) {
  		ret = -ENOMEM;
  		kfree(cmd);
  		goto out;
  	}
  	kfree(cmd);
  
  	/* WEP/WPA */
  	switch (wl->wpa_level) {
  	case GELIC_WL_WPA_LEVEL_NONE:
  		/* If WEP or no security, setup WEP config */
  		ret = gelic_wl_do_wep_setup(wl);
  		break;
  	case GELIC_WL_WPA_LEVEL_WPA:
  	case GELIC_WL_WPA_LEVEL_WPA2:
  		ret = gelic_wl_do_wpa_setup(wl);
  		break;
  	}
  
  	if (ret) {
  		pr_debug("%s: WEP/WPA setup failed %d\n", __func__,
  			 ret);
  		ret = -EPERM;
  		gelic_wl_send_iwap_event(wl, NULL);
  		goto out;
  	}
  
  	/* start association */
  	init_completion(&wl->assoc_done);
  	wl->assoc_stat = GELIC_WL_ASSOC_STAT_ASSOCIATING;
  	cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_ASSOC,
  				   NULL, 0);
  	if (!cmd || cmd->status || cmd->cmd_status) {
  		pr_debug("%s: assoc request failed\n", __func__);
  		wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
  		kfree(cmd);
  		ret = -ENOMEM;
  		gelic_wl_send_iwap_event(wl, NULL);
  		goto out;
  	}
  	kfree(cmd);
  
  	/* wait for connected event */
  	rc = wait_for_completion_timeout(&wl->assoc_done, HZ * 4);/*FIXME*/
  
  	if (!rc) {
  		/* timeouted.  Maybe key or cyrpt mode is wrong */
  		pr_info("%s: connect timeout\n", __func__);
  		cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_DISASSOC,
  					   NULL, 0);
  		kfree(cmd);
  		wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
  		gelic_wl_send_iwap_event(wl, NULL);
  		ret = -ENXIO;
  	} else {
  		wl->assoc_stat = GELIC_WL_ASSOC_STAT_ASSOCIATED;
  		/* copy bssid */
  		memcpy(wl->active_bssid, &bss->hwinfo->bssid[2], ETH_ALEN);
  
  		/* send connect event */
  		gelic_wl_send_iwap_event(wl, wl->active_bssid);
  		pr_info("%s: connected\n", __func__);
  	}
  out:
  	free_page((unsigned long)common);
  	pr_debug("%s: ->\n", __func__);
  	return ret;
  }
  
  /*
   * connected event
   */
  static void gelic_wl_connected_event(struct gelic_wl_info *wl,
  				     u64 event)
  {
  	u64 desired_event = 0;
  
  	switch (wl->wpa_level) {
  	case GELIC_WL_WPA_LEVEL_NONE:
  		desired_event = GELIC_LV1_WL_EVENT_CONNECTED;
  		break;
  	case GELIC_WL_WPA_LEVEL_WPA:
  	case GELIC_WL_WPA_LEVEL_WPA2:
  		desired_event = GELIC_LV1_WL_EVENT_WPA_CONNECTED;
  		break;
  	}
  
  	if (desired_event == event) {
  		pr_debug("%s: completed\n", __func__);
  		complete(&wl->assoc_done);
  		netif_carrier_on(port_to_netdev(wl_port(wl)));
  	} else
  		pr_debug("%s: event %#llx under wpa\n",
  				 __func__, event);
  }
  
  /*
   * disconnect event
   */
  static void gelic_wl_disconnect_event(struct gelic_wl_info *wl,
  				      u64 event)
  {
  	struct gelic_eurus_cmd *cmd;
  	int lock;
  
  	/*
  	 * If we fall here in the middle of association,
  	 * associate_bss() should be waiting for complation of
  	 * wl->assoc_done.
  	 * As it waits with timeout, just leave assoc_done
  	 * uncompleted, then it terminates with timeout
  	 */
  	if (!mutex_trylock(&wl->assoc_stat_lock)) {
  		pr_debug("%s: already locked\n", __func__);
  		lock = 0;
  	} else {
  		pr_debug("%s: obtain lock\n", __func__);
  		lock = 1;
  	}
  
  	cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_DISASSOC, NULL, 0);
  	kfree(cmd);
  
  	/* send disconnected event to the supplicant */
  	if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
  		gelic_wl_send_iwap_event(wl, NULL);
  
  	wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
  	netif_carrier_off(port_to_netdev(wl_port(wl)));
  
  	if (lock)
  		mutex_unlock(&wl->assoc_stat_lock);
  }
  /*
   * event worker
   */
  #ifdef DEBUG
  static const char *eventstr(enum gelic_lv1_wl_event event)
  {
  	static char buf[32];
  	char *ret;
  	if (event & GELIC_LV1_WL_EVENT_DEVICE_READY)
  		ret = "EURUS_READY";
  	else if (event & GELIC_LV1_WL_EVENT_SCAN_COMPLETED)
  		ret = "SCAN_COMPLETED";
  	else if (event & GELIC_LV1_WL_EVENT_DEAUTH)
  		ret = "DEAUTH";
  	else if (event & GELIC_LV1_WL_EVENT_BEACON_LOST)
  		ret = "BEACON_LOST";
  	else if (event & GELIC_LV1_WL_EVENT_CONNECTED)
  		ret = "CONNECTED";
  	else if (event & GELIC_LV1_WL_EVENT_WPA_CONNECTED)
  		ret = "WPA_CONNECTED";
  	else if (event & GELIC_LV1_WL_EVENT_WPA_ERROR)
  		ret = "WPA_ERROR";
  	else {
  		sprintf(buf, "Unknown(%#x)", event);
  		ret = buf;
  	}
  	return ret;
  }
  #else
  static const char *eventstr(enum gelic_lv1_wl_event event)
  {
  	return NULL;
  }
  #endif
  static void gelic_wl_event_worker(struct work_struct *work)
  {
  	struct gelic_wl_info *wl;
  	struct gelic_port *port;
  	u64 event, tmp;
  	int status;
  
  	pr_debug("%s:start\n", __func__);
  	wl = container_of(work, struct gelic_wl_info, event_work.work);
  	port = wl_port(wl);
  	while (1) {
  		status = lv1_net_control(bus_id(port->card), dev_id(port->card),
  					 GELIC_LV1_GET_WLAN_EVENT, 0, 0, 0,
  					 &event, &tmp);
  		if (status) {
  			if (status != LV1_NO_ENTRY)
  				pr_debug("%s:wlan event failed %d\n",
  					 __func__, status);
  			/* got all events */
  			pr_debug("%s:end\n", __func__);
  			return;
  		}
  		pr_debug("%s: event=%s\n", __func__, eventstr(event));
  		switch (event) {
  		case GELIC_LV1_WL_EVENT_SCAN_COMPLETED:
  			gelic_wl_scan_complete_event(wl);
  			break;
  		case GELIC_LV1_WL_EVENT_BEACON_LOST:
  		case GELIC_LV1_WL_EVENT_DEAUTH:
  			gelic_wl_disconnect_event(wl, event);
  			break;
  		case GELIC_LV1_WL_EVENT_CONNECTED:
  		case GELIC_LV1_WL_EVENT_WPA_CONNECTED:
  			gelic_wl_connected_event(wl, event);
  			break;
  		default:
  			break;
  		}
  	} /* while */
  }
  /*
   * association worker
   */
  static void gelic_wl_assoc_worker(struct work_struct *work)
  {
  	struct gelic_wl_info *wl;
  
  	struct gelic_wl_scan_info *best_bss;
  	int ret;
  	unsigned long irqflag;
  	u8 *essid;
  	size_t essid_len;
  
  	wl = container_of(work, struct gelic_wl_info, assoc_work.work);
  
  	mutex_lock(&wl->assoc_stat_lock);
  
  	if (wl->assoc_stat != GELIC_WL_ASSOC_STAT_DISCONN)
  		goto out;
  
  	spin_lock_irqsave(&wl->lock, irqflag);
  	if (test_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat)) {
  		pr_debug("%s: assoc ESSID configured %s\n", __func__,
  			 wl->essid);
  		essid = wl->essid;
  		essid_len = wl->essid_len;
  	} else {
  		essid = NULL;
  		essid_len = 0;
  	}
  	spin_unlock_irqrestore(&wl->lock, irqflag);
  
  	ret = gelic_wl_start_scan(wl, 0, essid, essid_len);
  	if (ret == -ERESTARTSYS) {
  		pr_debug("%s: scan start failed association\n", __func__);
  		schedule_delayed_work(&wl->assoc_work, HZ/10); /*FIXME*/
  		goto out;
  	} else if (ret) {
  		pr_info("%s: scan prerequisite failed\n", __func__);
  		goto out;
  	}
  
  	/*
  	 * Wait for bss scan completion
  	 * If we have scan list already, gelic_wl_start_scan()
  	 * returns OK and raises the complete.  Thus,
  	 * it's ok to wait unconditionally here
  	 */
  	wait_for_completion(&wl->scan_done);
  
  	pr_debug("%s: scan done\n", __func__);
  	mutex_lock(&wl->scan_lock);
  	if (wl->scan_stat != GELIC_WL_SCAN_STAT_GOT_LIST) {
  		gelic_wl_send_iwap_event(wl, NULL);
  		pr_info("%s: no scan list. association failed\n", __func__);
  		goto scan_lock_out;
  	}
  
  	/* find best matching bss */
  	best_bss = gelic_wl_find_best_bss(wl);
  	if (!best_bss) {
  		gelic_wl_send_iwap_event(wl, NULL);
  		pr_info("%s: no bss matched. association failed\n", __func__);
  		goto scan_lock_out;
  	}
  
  	/* ok, do association */
  	ret = gelic_wl_associate_bss(wl, best_bss);
  	if (ret)
  		pr_info("%s: association failed %d\n", __func__, ret);
  scan_lock_out:
  	mutex_unlock(&wl->scan_lock);
  out:
  	mutex_unlock(&wl->assoc_stat_lock);
  }
  /*
   * Interrupt handler
   * Called from the ethernet interrupt handler
   * Processes wireless specific virtual interrupts only
   */
  void gelic_wl_interrupt(struct net_device *netdev, u64 status)
  {
  	struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
  
  	if (status & GELIC_CARD_WLAN_COMMAND_COMPLETED) {
  		pr_debug("%s:cmd complete\n", __func__);
  		complete(&wl->cmd_done_intr);
  	}
  
  	if (status & GELIC_CARD_WLAN_EVENT_RECEIVED) {
  		pr_debug("%s:event received\n", __func__);
  		queue_delayed_work(wl->event_queue, &wl->event_work, 0);
  	}
  }
  
  /*
   * driver helpers
   */
  static const iw_handler gelic_wl_wext_handler[] =
  {
  	IW_HANDLER(SIOCGIWNAME, gelic_wl_get_name),
  	IW_HANDLER(SIOCGIWRANGE, gelic_wl_get_range),
  	IW_HANDLER(SIOCSIWSCAN, gelic_wl_set_scan),
  	IW_HANDLER(SIOCGIWSCAN, gelic_wl_get_scan),
  	IW_HANDLER(SIOCSIWAUTH, gelic_wl_set_auth),
  	IW_HANDLER(SIOCGIWAUTH, gelic_wl_get_auth),
  	IW_HANDLER(SIOCSIWESSID, gelic_wl_set_essid),
  	IW_HANDLER(SIOCGIWESSID, gelic_wl_get_essid),
  	IW_HANDLER(SIOCSIWENCODE, gelic_wl_set_encode),
  	IW_HANDLER(SIOCGIWENCODE, gelic_wl_get_encode),
  	IW_HANDLER(SIOCSIWAP, gelic_wl_set_ap),
  	IW_HANDLER(SIOCGIWAP, gelic_wl_get_ap),
  	IW_HANDLER(SIOCSIWENCODEEXT, gelic_wl_set_encodeext),
  	IW_HANDLER(SIOCGIWENCODEEXT, gelic_wl_get_encodeext),
  	IW_HANDLER(SIOCSIWMODE, gelic_wl_set_mode),
  	IW_HANDLER(SIOCGIWMODE, gelic_wl_get_mode),
  	IW_HANDLER(SIOCGIWNICKN, gelic_wl_get_nick),
  };
  
  static const struct iw_handler_def gelic_wl_wext_handler_def = {
  	.num_standard		= ARRAY_SIZE(gelic_wl_wext_handler),
  	.standard		= gelic_wl_wext_handler,
  	.get_wireless_stats	= gelic_wl_get_wireless_stats,
  };
  
  static struct net_device *gelic_wl_alloc(struct gelic_card *card)
  {
  	struct net_device *netdev;
  	struct gelic_port *port;
  	struct gelic_wl_info *wl;
  	unsigned int i;
  
  	pr_debug("%s:start\n", __func__);
  	netdev = alloc_etherdev(sizeof(struct gelic_port) +
  				sizeof(struct gelic_wl_info));
  	pr_debug("%s: netdev =%p card=%p\n", __func__, netdev, card);
  	if (!netdev)
  		return NULL;
  
  	strcpy(netdev->name, "wlan%d");
  
  	port = netdev_priv(netdev);
  	port->netdev = netdev;
  	port->card = card;
  	port->type = GELIC_PORT_WIRELESS;
  
  	wl = port_wl(port);
  	pr_debug("%s: wl=%p port=%p\n", __func__, wl, port);
  
  	/* allocate scan list */
  	wl->networks = kzalloc(sizeof(struct gelic_wl_scan_info) *
  			       GELIC_WL_BSS_MAX_ENT, GFP_KERNEL);
  
  	if (!wl->networks)
  		goto fail_bss;
  
  	wl->eurus_cmd_queue = create_singlethread_workqueue("gelic_cmd");
  	if (!wl->eurus_cmd_queue)
  		goto fail_cmd_workqueue;
  
  	wl->event_queue = create_singlethread_workqueue("gelic_event");
  	if (!wl->event_queue)
  		goto fail_event_workqueue;
  
  	INIT_LIST_HEAD(&wl->network_free_list);
  	INIT_LIST_HEAD(&wl->network_list);
  	for (i = 0; i < GELIC_WL_BSS_MAX_ENT; i++)
  		list_add_tail(&wl->networks[i].list,
  			      &wl->network_free_list);
  	init_completion(&wl->cmd_done_intr);
  
  	INIT_DELAYED_WORK(&wl->event_work, gelic_wl_event_worker);
  	INIT_DELAYED_WORK(&wl->assoc_work, gelic_wl_assoc_worker);
  	mutex_init(&wl->scan_lock);
  	mutex_init(&wl->assoc_stat_lock);
  
  	init_completion(&wl->scan_done);
  	/* for the case that no scan request is issued and stop() is called */
  	complete(&wl->scan_done);
  
  	spin_lock_init(&wl->lock);
  
  	wl->scan_age = 5*HZ; /* FIXME */
  
  	/* buffer for receiving scanned list etc */
  	BUILD_BUG_ON(PAGE_SIZE <
  		     sizeof(struct gelic_eurus_scan_info) *
  		     GELIC_EURUS_MAX_SCAN);
  	pr_debug("%s:end\n", __func__);
  	return netdev;
  
  fail_event_workqueue:
  	destroy_workqueue(wl->eurus_cmd_queue);
  fail_cmd_workqueue:
  	kfree(wl->networks);
  fail_bss:
  	free_netdev(netdev);
  	pr_debug("%s:end error\n", __func__);
  	return NULL;
  
  }
  
  static void gelic_wl_free(struct gelic_wl_info *wl)
  {
  	struct gelic_wl_scan_info *scan_info;
  	unsigned int i;
  
  	pr_debug("%s: <-\n", __func__);
  
  	pr_debug("%s: destroy queues\n", __func__);
  	destroy_workqueue(wl->eurus_cmd_queue);
  	destroy_workqueue(wl->event_queue);
  
  	scan_info = wl->networks;
  	for (i = 0; i < GELIC_WL_BSS_MAX_ENT; i++, scan_info++)
  		kfree(scan_info->hwinfo);
  	kfree(wl->networks);
  
  	free_netdev(port_to_netdev(wl_port(wl)));
  
  	pr_debug("%s: ->\n", __func__);
  }
  
  static int gelic_wl_try_associate(struct net_device *netdev)
  {
  	struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
  	int ret = -1;
  	unsigned int i;
  
  	pr_debug("%s: <-\n", __func__);
  
  	/* check constraits for start association */
  	/* for no access restriction AP */
  	if (wl->group_cipher_method == GELIC_WL_CIPHER_NONE) {
  		if (test_bit(GELIC_WL_STAT_CONFIGURED,
  			     &wl->stat))
  			goto do_associate;
  		else {
  			pr_debug("%s: no wep, not configured\n", __func__);
  			return ret;
  		}
  	}
  
  	/* for WEP, one of four keys should be set */
  	if (wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
  		/* one of keys set */
  		for (i = 0; i < GELIC_WEP_KEYS; i++) {
  			if (test_bit(i, &wl->key_enabled))
  			    goto do_associate;
  		}
  		pr_debug("%s: WEP, but no key specified\n", __func__);
  		return ret;
  	}
  
  	/* for WPA[2], psk should be set */
  	if ((wl->group_cipher_method == GELIC_WL_CIPHER_TKIP) ||
  	    (wl->group_cipher_method == GELIC_WL_CIPHER_AES)) {
  		if (test_bit(GELIC_WL_STAT_WPA_PSK_SET,
  			     &wl->stat))
  			goto do_associate;
  		else {
  			pr_debug("%s: AES/TKIP, but PSK not configured\n",
  				 __func__);
  			return ret;
  		}
  	}
  
  do_associate:
  	ret = schedule_delayed_work(&wl->assoc_work, 0);
  	pr_debug("%s: start association work %d\n", __func__, ret);
  	return ret;
  }
  
  /*
   * netdev handlers
   */
  static int gelic_wl_open(struct net_device *netdev)
  {
  	struct gelic_card *card = netdev_card(netdev);
  
  	pr_debug("%s:->%p\n", __func__, netdev);
  
  	gelic_card_up(card);
  
  	/* try to associate */
  	gelic_wl_try_associate(netdev);
  
  	netif_start_queue(netdev);
  
  	pr_debug("%s:<-\n", __func__);
  	return 0;
  }
  
  /*
   * reset state machine
   */
  static int gelic_wl_reset_state(struct gelic_wl_info *wl)
  {
  	struct gelic_wl_scan_info *target;
  	struct gelic_wl_scan_info *tmp;
  
  	/* empty scan list */
  	list_for_each_entry_safe(target, tmp, &wl->network_list, list) {
  		list_move_tail(&target->list, &wl->network_free_list);
  	}
  	wl->scan_stat = GELIC_WL_SCAN_STAT_INIT;
  
  	/* clear configuration */
  	wl->auth_method = GELIC_EURUS_AUTH_OPEN;
  	wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
  	wl->pairwise_cipher_method = GELIC_WL_CIPHER_NONE;
  	wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
  
  	wl->key_enabled = 0;
  	wl->current_key = 0;
  
  	wl->psk_type = GELIC_EURUS_WPA_PSK_PASSPHRASE;
  	wl->psk_len = 0;
  
  	wl->essid_len = 0;
  	memset(wl->essid, 0, sizeof(wl->essid));
  	memset(wl->bssid, 0, sizeof(wl->bssid));
  	memset(wl->active_bssid, 0, sizeof(wl->active_bssid));
  
  	wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
  
  	memset(&wl->iwstat, 0, sizeof(wl->iwstat));
  	/* all status bit clear */
  	wl->stat = 0;
  	return 0;
  }
  
  /*
   * Tell eurus to terminate association
   */
  static void gelic_wl_disconnect(struct net_device *netdev)
  {
  	struct gelic_port *port = netdev_priv(netdev);
  	struct gelic_wl_info *wl = port_wl(port);
  	struct gelic_eurus_cmd *cmd;
  
  	/*
  	 * If scann process is running on chip,
  	 * further requests will be rejected
  	 */
  	if (wl->scan_stat == GELIC_WL_SCAN_STAT_SCANNING)
  		wait_for_completion_timeout(&wl->scan_done, HZ);
  
  	cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_DISASSOC, NULL, 0);
  	kfree(cmd);
  	gelic_wl_send_iwap_event(wl, NULL);
  };
  
  static int gelic_wl_stop(struct net_device *netdev)
  {
  	struct gelic_port *port = netdev_priv(netdev);
  	struct gelic_wl_info *wl = port_wl(port);
  	struct gelic_card *card = netdev_card(netdev);
  
  	pr_debug("%s:<-\n", __func__);
  
  	/*
  	 * Cancel pending association work.
  	 * event work can run after netdev down
  	 */
  	cancel_delayed_work(&wl->assoc_work);
  
  	if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
  		gelic_wl_disconnect(netdev);
  
  	/* reset our state machine */
  	gelic_wl_reset_state(wl);
  
  	netif_stop_queue(netdev);
  
  	gelic_card_down(card);
  
  	pr_debug("%s:->\n", __func__);
  	return 0;
  }
  
  /* -- */
  
  static const struct net_device_ops gelic_wl_netdevice_ops = {
  	.ndo_open = gelic_wl_open,
  	.ndo_stop = gelic_wl_stop,
  	.ndo_start_xmit = gelic_net_xmit,
  	.ndo_set_rx_mode = gelic_net_set_multi,
  	.ndo_change_mtu = gelic_net_change_mtu,
  	.ndo_tx_timeout = gelic_net_tx_timeout,
  	.ndo_set_mac_address = eth_mac_addr,
  	.ndo_validate_addr = eth_validate_addr,
  #ifdef CONFIG_NET_POLL_CONTROLLER
  	.ndo_poll_controller = gelic_net_poll_controller,
  #endif
  };
  
  static const struct ethtool_ops gelic_wl_ethtool_ops = {
  	.get_drvinfo	= gelic_net_get_drvinfo,
  	.get_link	= gelic_wl_get_link,
  };
  
  static void gelic_wl_setup_netdev_ops(struct net_device *netdev)
  {
  	struct gelic_wl_info *wl;
  	wl = port_wl(netdev_priv(netdev));
  	BUG_ON(!wl);
  	netdev->watchdog_timeo = GELIC_NET_WATCHDOG_TIMEOUT;
  
  	netdev->ethtool_ops = &gelic_wl_ethtool_ops;
  	netdev->netdev_ops = &gelic_wl_netdevice_ops;
  	netdev->wireless_data = &wl->wireless_data;
  	netdev->wireless_handlers = &gelic_wl_wext_handler_def;
  }
  
  /*
   * driver probe/remove
   */
  int gelic_wl_driver_probe(struct gelic_card *card)
  {
  	int ret;
  	struct net_device *netdev;
  
  	pr_debug("%s:start\n", __func__);
  
  	if (ps3_compare_firmware_version(1, 6, 0) < 0)
  		return 0;
  	if (!card->vlan[GELIC_PORT_WIRELESS].tx)
  		return 0;
  
  	/* alloc netdevice for wireless */
  	netdev = gelic_wl_alloc(card);
  	if (!netdev)
  		return -ENOMEM;
  
  	/* setup net_device structure */
  	SET_NETDEV_DEV(netdev, &card->dev->core);
  	gelic_wl_setup_netdev_ops(netdev);
  
  	/* setup some of net_device and register it */
  	ret = gelic_net_setup_netdev(netdev, card);
  	if (ret)
  		goto fail_setup;
  	card->netdev[GELIC_PORT_WIRELESS] = netdev;
  
  	/* add enable wireless interrupt */
  	card->irq_mask |= GELIC_CARD_WLAN_EVENT_RECEIVED |
  		GELIC_CARD_WLAN_COMMAND_COMPLETED;
  	/* to allow wireless commands while both interfaces are down */
  	gelic_card_set_irq_mask(card, GELIC_CARD_WLAN_EVENT_RECEIVED |
  				GELIC_CARD_WLAN_COMMAND_COMPLETED);
  	pr_debug("%s:end\n", __func__);
  	return 0;
  
  fail_setup:
  	gelic_wl_free(port_wl(netdev_port(netdev)));
  
  	return ret;
  }
  
  int gelic_wl_driver_remove(struct gelic_card *card)
  {
  	struct gelic_wl_info *wl;
  	struct net_device *netdev;
  
  	pr_debug("%s:start\n", __func__);
  
  	if (ps3_compare_firmware_version(1, 6, 0) < 0)
  		return 0;
  	if (!card->vlan[GELIC_PORT_WIRELESS].tx)
  		return 0;
  
  	netdev = card->netdev[GELIC_PORT_WIRELESS];
  	wl = port_wl(netdev_priv(netdev));
  
  	/* if the interface was not up, but associated */
  	if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
  		gelic_wl_disconnect(netdev);
  
  	complete(&wl->cmd_done_intr);
  
  	/* cancel all work queue */
  	cancel_delayed_work(&wl->assoc_work);
  	cancel_delayed_work(&wl->event_work);
  	flush_workqueue(wl->eurus_cmd_queue);
  	flush_workqueue(wl->event_queue);
  
  	unregister_netdev(netdev);
  
  	/* disable wireless interrupt */
  	pr_debug("%s: disable intr\n", __func__);
  	card->irq_mask &= ~(GELIC_CARD_WLAN_EVENT_RECEIVED |
  			    GELIC_CARD_WLAN_COMMAND_COMPLETED);
  	/* free bss list, netdev*/
  	gelic_wl_free(wl);
  	pr_debug("%s:end\n", __func__);
  	return 0;
  }
  