ethernet/toshiba/ps3_gelic_wireless.c

0001 // SPDX-License-Identifier: GPL-2.0-only
0002 /*
0003  *  PS3 gelic network driver.
0004  *
0005  * Copyright (C) 2007 Sony Computer Entertainment Inc.
0006  * Copyright 2007 Sony Corporation
0007  */
0008 #undef DEBUG
0009
0010 #include <linux/kernel.h>
0011 #include <linux/module.h>
0012 #include <linux/slab.h>
0013
0014 #include <linux/etherdevice.h>
0015 #include <linux/ethtool.h>
0016 #include <linux/if_vlan.h>
0017
0018 #include <linux/in.h>
0019 #include <linux/ip.h>
0020 #include <linux/tcp.h>
0021 #include <linux/wireless.h>
0022 #include <linux/ieee80211.h>
0023 #include <linux/if_arp.h>
0024 #include <linux/ctype.h>
0025 #include <linux/string.h>
0026 #include <net/iw_handler.h>
0027
0028 #include <linux/dma-mapping.h>
0029 #include <net/checksum.h>
0030 #include <asm/firmware.h>
0031 #include <asm/ps3.h>
0032 #include <asm/lv1call.h>
0033
0034 #include "ps3_gelic_net.h"
0035 #include "ps3_gelic_wireless.h"
0036
0037
0038 static int gelic_wl_start_scan(struct gelic_wl_info *wl, int always_scan,
0039                    u8 *essid, size_t essid_len);
0040 static int gelic_wl_try_associate(struct net_device *netdev);
0041
0042 /*
0043  * tables
0044  */
0045
0046 /* 802.11b/g channel to freq in MHz */
0047 static const int channel_freq[] = {
0048     2412, 2417, 2422, 2427, 2432,
0049     2437, 2442, 2447, 2452, 2457,
0050     2462, 2467, 2472, 2484
0051 };
0052 #define NUM_CHANNELS ARRAY_SIZE(channel_freq)
0053
0054 /* in bps */
0055 static const int bitrate_list[] = {
0056       1000000,
0057       2000000,
0058       5500000,
0059      11000000,
0060       6000000,
0061       9000000,
0062      12000000,
0063      18000000,
0064      24000000,
0065      36000000,
0066      48000000,
0067      54000000
0068 };
0069 #define NUM_BITRATES ARRAY_SIZE(bitrate_list)
0070
0071 /*
0072  * wpa2 support requires the hypervisor version 2.0 or later
0073  */
0074 static inline int wpa2_capable(void)
0075 {
0076     return 0 <= ps3_compare_firmware_version(2, 0, 0);
0077 }
0078
0079 static inline int precise_ie(void)
0080 {
0081     return 0 <= ps3_compare_firmware_version(2, 2, 0);
0082 }
0083 /*
0084  * post_eurus_cmd helpers
0085  */
0086 struct eurus_cmd_arg_info {
0087     int pre_arg; /* command requires arg1, arg2 at POST COMMAND */
0088     int post_arg; /* command requires arg1, arg2 at GET_RESULT */
0089 };
0090
0091 static const struct eurus_cmd_arg_info cmd_info[GELIC_EURUS_CMD_MAX_INDEX] = {
0092     [GELIC_EURUS_CMD_SET_COMMON_CFG] = { .pre_arg = 1},
0093     [GELIC_EURUS_CMD_SET_WEP_CFG]    = { .pre_arg = 1},
0094     [GELIC_EURUS_CMD_SET_WPA_CFG]    = { .pre_arg = 1},
0095     [GELIC_EURUS_CMD_GET_COMMON_CFG] = { .post_arg = 1},
0096     [GELIC_EURUS_CMD_GET_WEP_CFG]    = { .post_arg = 1},
0097     [GELIC_EURUS_CMD_GET_WPA_CFG]    = { .post_arg = 1},
0098     [GELIC_EURUS_CMD_GET_RSSI_CFG]   = { .post_arg = 1},
0099     [GELIC_EURUS_CMD_START_SCAN]     = { .pre_arg = 1},
0100     [GELIC_EURUS_CMD_GET_SCAN]       = { .post_arg = 1},
0101 };
0102
0103 #ifdef DEBUG
0104 static const char *cmdstr(enum gelic_eurus_command ix)
0105 {
0106     switch (ix) {
0107     case GELIC_EURUS_CMD_ASSOC:
0108         return "ASSOC";
0109     case GELIC_EURUS_CMD_DISASSOC:
0110         return "DISASSOC";
0111     case GELIC_EURUS_CMD_START_SCAN:
0112         return "SCAN";
0113     case GELIC_EURUS_CMD_GET_SCAN:
0114         return "GET SCAN";
0115     case GELIC_EURUS_CMD_SET_COMMON_CFG:
0116         return "SET_COMMON_CFG";
0117     case GELIC_EURUS_CMD_GET_COMMON_CFG:
0118         return "GET_COMMON_CFG";
0119     case GELIC_EURUS_CMD_SET_WEP_CFG:
0120         return "SET_WEP_CFG";
0121     case GELIC_EURUS_CMD_GET_WEP_CFG:
0122         return "GET_WEP_CFG";
0123     case GELIC_EURUS_CMD_SET_WPA_CFG:
0124         return "SET_WPA_CFG";
0125     case GELIC_EURUS_CMD_GET_WPA_CFG:
0126         return "GET_WPA_CFG";
0127     case GELIC_EURUS_CMD_GET_RSSI_CFG:
0128         return "GET_RSSI";
0129     default:
0130         break;
0131     }
0132     return "";
0133 };
0134 #else
0135 static inline const char *cmdstr(enum gelic_eurus_command ix)
0136 {
0137     return "";
0138 }
0139 #endif
0140
0141 /* synchronously do eurus commands */
0142 static void gelic_eurus_sync_cmd_worker(struct work_struct *work)
0143 {
0144     struct gelic_eurus_cmd *cmd;
0145     struct gelic_card *card;
0146     struct gelic_wl_info *wl;
0147
0148     u64 arg1, arg2;
0149
0150     pr_debug("%s: <-\n", __func__);
0151     cmd = container_of(work, struct gelic_eurus_cmd, work);
0152     BUG_ON(cmd_info[cmd->cmd].pre_arg &&
0153            cmd_info[cmd->cmd].post_arg);
0154     wl = cmd->wl;
0155     card = port_to_card(wl_port(wl));
0156
0157     if (cmd_info[cmd->cmd].pre_arg) {
0158         arg1 = (cmd->buffer) ?
0159             ps3_mm_phys_to_lpar(__pa(cmd->buffer)) :
0160             0;
0161         arg2 = cmd->buf_size;
0162     } else {
0163         arg1 = 0;
0164         arg2 = 0;
0165     }
0166     init_completion(&wl->cmd_done_intr);
0167     pr_debug("%s: cmd='%s' start\n", __func__, cmdstr(cmd->cmd));
0168     cmd->status = lv1_net_control(bus_id(card), dev_id(card),
0169                       GELIC_LV1_POST_WLAN_CMD,
0170                       cmd->cmd, arg1, arg2,
0171                       &cmd->tag, &cmd->size);
0172     if (cmd->status) {
0173         complete(&cmd->done);
0174         pr_info("%s: cmd issue failed\n", __func__);
0175         return;
0176     }
0177
0178     wait_for_completion(&wl->cmd_done_intr);
0179
0180     if (cmd_info[cmd->cmd].post_arg) {
0181         arg1 = ps3_mm_phys_to_lpar(__pa(cmd->buffer));
0182         arg2 = cmd->buf_size;
0183     } else {
0184         arg1 = 0;
0185         arg2 = 0;
0186     }
0187
0188     cmd->status = lv1_net_control(bus_id(card), dev_id(card),
0189                       GELIC_LV1_GET_WLAN_CMD_RESULT,
0190                       cmd->tag, arg1, arg2,
0191                       &cmd->cmd_status, &cmd->size);
0192 #ifdef DEBUG
0193     if (cmd->status || cmd->cmd_status) {
0194     pr_debug("%s: cmd done tag=%#lx arg1=%#lx, arg2=%#lx\n", __func__,
0195          cmd->tag, arg1, arg2);
0196     pr_debug("%s: cmd done status=%#x cmd_status=%#lx size=%#lx\n",
0197          __func__, cmd->status, cmd->cmd_status, cmd->size);
0198     }
0199 #endif
0200     complete(&cmd->done);
0201     pr_debug("%s: cmd='%s' done\n", __func__, cmdstr(cmd->cmd));
0202 }
0203
0204 static struct gelic_eurus_cmd *gelic_eurus_sync_cmd(struct gelic_wl_info *wl,
0205                             unsigned int eurus_cmd,
0206                             void *buffer,
0207                             unsigned int buf_size)
0208 {
0209     struct gelic_eurus_cmd *cmd;
0210
0211     /* allocate cmd */
0212     cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
0213     if (!cmd)
0214         return NULL;
0215
0216     /* initialize members */
0217     cmd->cmd = eurus_cmd;
0218     cmd->buffer = buffer;
0219     cmd->buf_size = buf_size;
0220     cmd->wl = wl;
0221     INIT_WORK(&cmd->work, gelic_eurus_sync_cmd_worker);
0222     init_completion(&cmd->done);
0223     queue_work(wl->eurus_cmd_queue, &cmd->work);
0224
0225     /* wait for command completion */
0226     wait_for_completion(&cmd->done);
0227
0228     return cmd;
0229 }
0230
0231 static u32 gelic_wl_get_link(struct net_device *netdev)
0232 {
0233     struct gelic_wl_info *wl = port_wl(netdev_port(netdev));
0234     u32 ret;
0235
0236     pr_debug("%s: <-\n", __func__);
0237     mutex_lock(&wl->assoc_stat_lock);
0238     if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
0239         ret = 1;
0240     else
0241         ret = 0;
0242     mutex_unlock(&wl->assoc_stat_lock);
0243     pr_debug("%s: ->\n", __func__);
0244     return ret;
0245 }
0246
0247 static void gelic_wl_send_iwap_event(struct gelic_wl_info *wl, u8 *bssid)
0248 {
0249     union iwreq_data data;
0250
0251     memset(&data, 0, sizeof(data));
0252     if (bssid)
0253         memcpy(data.ap_addr.sa_data, bssid, ETH_ALEN);
0254     data.ap_addr.sa_family = ARPHRD_ETHER;
0255     wireless_send_event(port_to_netdev(wl_port(wl)), SIOCGIWAP,
0256                 &data, NULL);
0257 }
0258
0259 /*
0260  * wireless extension handlers and helpers
0261  */
0262
0263 /* SIOGIWNAME */
0264 static int gelic_wl_get_name(struct net_device *dev,
0265                  struct iw_request_info *info,
0266                  union iwreq_data *iwreq, char *extra)
0267 {
0268     strcpy(iwreq->name, "IEEE 802.11bg");
0269     return 0;
0270 }
0271
0272 static void gelic_wl_get_ch_info(struct gelic_wl_info *wl)
0273 {
0274     struct gelic_card *card = port_to_card(wl_port(wl));
0275     u64 ch_info_raw, tmp;
0276     int status;
0277
0278     if (!test_and_set_bit(GELIC_WL_STAT_CH_INFO, &wl->stat)) {
0279         status = lv1_net_control(bus_id(card), dev_id(card),
0280                      GELIC_LV1_GET_CHANNEL, 0, 0, 0,
0281                      &ch_info_raw,
0282                      &tmp);
0283         /* some fw versions may return error */
0284         if (status) {
0285             if (status != LV1_NO_ENTRY)
0286                 pr_info("%s: available ch unknown\n", __func__);
0287             wl->ch_info = 0x07ff;/* 11 ch */
0288         } else
0289             /* 16 bits of MSB has available channels */
0290             wl->ch_info = ch_info_raw >> 48;
0291     }
0292 }
0293
0294 /* SIOGIWRANGE */
0295 static int gelic_wl_get_range(struct net_device *netdev,
0296                   struct iw_request_info *info,
0297                   union iwreq_data *iwreq, char *extra)
0298 {
0299     struct iw_point *point = &iwreq->data;
0300     struct iw_range *range = (struct iw_range *)extra;
0301     struct gelic_wl_info *wl = port_wl(netdev_port(netdev));
0302     unsigned int i, chs;
0303
0304     pr_debug("%s: <-\n", __func__);
0305     point->length = sizeof(struct iw_range);
0306     memset(range, 0, sizeof(struct iw_range));
0307
0308     range->we_version_compiled = WIRELESS_EXT;
0309     range->we_version_source = 22;
0310
0311     /* available channels and frequencies */
0312     gelic_wl_get_ch_info(wl);
0313
0314     for (i = 0, chs = 0;
0315          i < NUM_CHANNELS && chs < IW_MAX_FREQUENCIES; i++)
0316         if (wl->ch_info & (1 << i)) {
0317             range->freq[chs].i = i + 1;
0318             range->freq[chs].m = channel_freq[i];
0319             range->freq[chs].e = 6;
0320             chs++;
0321         }
0322     range->num_frequency = chs;
0323     range->old_num_frequency = chs;
0324     range->num_channels = chs;
0325     range->old_num_channels = chs;
0326
0327     /* bitrates */
0328     for (i = 0; i < NUM_BITRATES; i++)
0329         range->bitrate[i] = bitrate_list[i];
0330     range->num_bitrates = i;
0331
0332     /* signal levels */
0333     range->max_qual.qual = 100; /* relative value */
0334     range->max_qual.level = 100;
0335     range->avg_qual.qual = 50;
0336     range->avg_qual.level = 50;
0337     range->sensitivity = 0;
0338
0339     /* Event capability */
0340     IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
0341     IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
0342     IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
0343
0344     /* encryption capability */
0345     range->enc_capa = IW_ENC_CAPA_WPA |
0346         IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP |
0347         IW_ENC_CAPA_4WAY_HANDSHAKE;
0348     if (wpa2_capable())
0349         range->enc_capa |= IW_ENC_CAPA_WPA2;
0350     range->encoding_size[0] = 5;    /* 40bit WEP */
0351     range->encoding_size[1] = 13;   /* 104bit WEP */
0352     range->encoding_size[2] = 32;   /* WPA-PSK */
0353     range->num_encoding_sizes = 3;
0354     range->max_encoding_tokens = GELIC_WEP_KEYS;
0355
0356     /* scan capability */
0357     range->scan_capa = IW_SCAN_CAPA_ESSID;
0358
0359     pr_debug("%s: ->\n", __func__);
0360     return 0;
0361
0362 }
0363
0364 /* SIOC{G,S}IWSCAN */
0365 static int gelic_wl_set_scan(struct net_device *netdev,
0366                struct iw_request_info *info,
0367                union iwreq_data *wrqu, char *extra)
0368 {
0369     struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
0370     struct iw_scan_req *req;
0371     u8 *essid = NULL;
0372     size_t essid_len = 0;
0373
0374     if (wrqu->data.length == sizeof(struct iw_scan_req) &&
0375         wrqu->data.flags & IW_SCAN_THIS_ESSID) {
0376         req = (struct iw_scan_req*)extra;
0377         essid = req->essid;
0378         essid_len = req->essid_len;
0379         pr_debug("%s: ESSID scan =%s\n", __func__, essid);
0380     }
0381     return gelic_wl_start_scan(wl, 1, essid, essid_len);
0382 }
0383
0384 #define OUI_LEN 3
0385 static const u8 rsn_oui[OUI_LEN] = { 0x00, 0x0f, 0xac };
0386 static const u8 wpa_oui[OUI_LEN] = { 0x00, 0x50, 0xf2 };
0387
0388 /*
0389  * synthesize WPA/RSN IE data
0390  * See WiFi WPA specification and IEEE 802.11-2007 7.3.2.25
0391  * for the format
0392  */
0393 static size_t gelic_wl_synthesize_ie(u8 *buf,
0394                      struct gelic_eurus_scan_info *scan)
0395 {
0396
0397     const u8 *oui_header;
0398     u8 *start = buf;
0399     int rsn;
0400     int ccmp;
0401
0402     pr_debug("%s: <- sec=%16x\n", __func__, scan->security);
0403     switch (be16_to_cpu(scan->security) & GELIC_EURUS_SCAN_SEC_MASK) {
0404     case GELIC_EURUS_SCAN_SEC_WPA:
0405         rsn = 0;
0406         break;
0407     case GELIC_EURUS_SCAN_SEC_WPA2:
0408         rsn = 1;
0409         break;
0410     default:
0411         /* WEP or none.  No IE returned */
0412         return 0;
0413     }
0414
0415     switch (be16_to_cpu(scan->security) & GELIC_EURUS_SCAN_SEC_WPA_MASK) {
0416     case GELIC_EURUS_SCAN_SEC_WPA_TKIP:
0417         ccmp = 0;
0418         break;
0419     case GELIC_EURUS_SCAN_SEC_WPA_AES:
0420         ccmp = 1;
0421         break;
0422     default:
0423         if (rsn) {
0424             ccmp = 1;
0425             pr_info("%s: no cipher info. defaulted to CCMP\n",
0426                 __func__);
0427         } else {
0428             ccmp = 0;
0429             pr_info("%s: no cipher info. defaulted to TKIP\n",
0430                 __func__);
0431         }
0432     }
0433
0434     if (rsn)
0435         oui_header = rsn_oui;
0436     else
0437         oui_header = wpa_oui;
0438
0439     /* element id */
0440     if (rsn)
0441         *buf++ = WLAN_EID_RSN;
0442     else
0443         *buf++ = WLAN_EID_VENDOR_SPECIFIC;
0444
0445     /* length filed; set later */
0446     buf++;
0447
0448     /* wpa special header */
0449     if (!rsn) {
0450         memcpy(buf, wpa_oui, OUI_LEN);
0451         buf += OUI_LEN;
0452         *buf++ = 0x01;
0453     }
0454
0455     /* version */
0456     *buf++ = 0x01; /* version 1.0 */
0457     *buf++ = 0x00;
0458
0459     /* group cipher */
0460     memcpy(buf, oui_header, OUI_LEN);
0461     buf += OUI_LEN;
0462
0463     if (ccmp)
0464         *buf++ = 0x04; /* CCMP */
0465     else
0466         *buf++ = 0x02; /* TKIP */
0467
0468     /* pairwise key count always 1 */
0469     *buf++ = 0x01;
0470     *buf++ = 0x00;
0471
0472     /* pairwise key suit */
0473     memcpy(buf, oui_header, OUI_LEN);
0474     buf += OUI_LEN;
0475     if (ccmp)
0476         *buf++ = 0x04; /* CCMP */
0477     else
0478         *buf++ = 0x02; /* TKIP */
0479
0480     /* AKM count is 1 */
0481     *buf++ = 0x01;
0482     *buf++ = 0x00;
0483
0484     /* AKM suite is assumed as PSK*/
0485     memcpy(buf, oui_header, OUI_LEN);
0486     buf += OUI_LEN;
0487     *buf++ = 0x02; /* PSK */
0488
0489     /* RSN capabilities is 0 */
0490     *buf++ = 0x00;
0491     *buf++ = 0x00;
0492
0493     /* set length field */
0494     start[1] = (buf - start - 2);
0495
0496     pr_debug("%s: ->\n", __func__);
0497     return buf - start;
0498 }
0499
0500 struct ie_item {
0501     u8 *data;
0502     u8 len;
0503 };
0504
0505 struct ie_info {
0506     struct ie_item wpa;
0507     struct ie_item rsn;
0508 };
0509
0510 static void gelic_wl_parse_ie(u8 *data, size_t len,
0511                   struct ie_info *ie_info)
0512 {
0513     size_t data_left = len;
0514     u8 *pos = data;
0515     u8 item_len;
0516     u8 item_id;
0517
0518     pr_debug("%s: data=%p len=%ld\n", __func__,
0519          data, len);
0520     memset(ie_info, 0, sizeof(struct ie_info));
0521
0522     while (2 <= data_left) {
0523         item_id = *pos++;
0524         item_len = *pos++;
0525         data_left -= 2;
0526
0527         if (data_left < item_len)
0528             break;
0529
0530         switch (item_id) {
0531         case WLAN_EID_VENDOR_SPECIFIC:
0532             if ((OUI_LEN + 1 <= item_len) &&
0533                 !memcmp(pos, wpa_oui, OUI_LEN) &&
0534                 pos[OUI_LEN] == 0x01) {
0535                 ie_info->wpa.data = pos - 2;
0536                 ie_info->wpa.len = item_len + 2;
0537             }
0538             break;
0539         case WLAN_EID_RSN:
0540             ie_info->rsn.data = pos - 2;
0541             /* length includes the header */
0542             ie_info->rsn.len = item_len + 2;
0543             break;
0544         default:
0545             pr_debug("%s: ignore %#x,%d\n", __func__,
0546                  item_id, item_len);
0547             break;
0548         }
0549         pos += item_len;
0550         data_left -= item_len;
0551     }
0552     pr_debug("%s: wpa=%p,%d wpa2=%p,%d\n", __func__,
0553          ie_info->wpa.data, ie_info->wpa.len,
0554          ie_info->rsn.data, ie_info->rsn.len);
0555 }
0556
0557
0558 /*
0559  * translate the scan informations from hypervisor to a
0560  * independent format
0561  */
0562 static char *gelic_wl_translate_scan(struct net_device *netdev,
0563                      struct iw_request_info *info,
0564                      char *ev,
0565                      char *stop,
0566                      struct gelic_wl_scan_info *network)
0567 {
0568     struct iw_event iwe;
0569     struct gelic_eurus_scan_info *scan = network->hwinfo;
0570     char *tmp;
0571     u8 rate;
0572     unsigned int i, j, len;
0573     u8 buf[64]; /* arbitrary size large enough */
0574
0575     pr_debug("%s: <-\n", __func__);
0576
0577     /* first entry should be AP's mac address */
0578     iwe.cmd = SIOCGIWAP;
0579     iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
0580     memcpy(iwe.u.ap_addr.sa_data, &scan->bssid[2], ETH_ALEN);
0581     ev = iwe_stream_add_event(info, ev, stop, &iwe, IW_EV_ADDR_LEN);
0582
0583     /* ESSID */
0584     iwe.cmd = SIOCGIWESSID;
0585     iwe.u.data.flags = 1;
0586     iwe.u.data.length = strnlen(scan->essid, 32);
0587     ev = iwe_stream_add_point(info, ev, stop, &iwe, scan->essid);
0588
0589     /* FREQUENCY */
0590     iwe.cmd = SIOCGIWFREQ;
0591     iwe.u.freq.m = be16_to_cpu(scan->channel);
0592     iwe.u.freq.e = 0; /* table value in MHz */
0593     iwe.u.freq.i = 0;
0594     ev = iwe_stream_add_event(info, ev, stop, &iwe, IW_EV_FREQ_LEN);
0595
0596     /* RATES */
0597     iwe.cmd = SIOCGIWRATE;
0598     iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0;
0599     /* to stuff multiple values in one event */
0600     tmp = ev + iwe_stream_lcp_len(info);
0601     /* put them in ascendant order (older is first) */
0602     i = 0;
0603     j = 0;
0604     pr_debug("%s: rates=%d rate=%d\n", __func__,
0605          network->rate_len, network->rate_ext_len);
0606     while (i < network->rate_len) {
0607         if (j < network->rate_ext_len &&
0608             ((scan->ext_rate[j] & 0x7f) < (scan->rate[i] & 0x7f)))
0609             rate = scan->ext_rate[j++] & 0x7f;
0610         else
0611             rate = scan->rate[i++] & 0x7f;
0612         iwe.u.bitrate.value = rate * 500000; /* 500kbps unit */
0613         tmp = iwe_stream_add_value(info, ev, tmp, stop, &iwe,
0614                        IW_EV_PARAM_LEN);
0615     }
0616     while (j < network->rate_ext_len) {
0617         iwe.u.bitrate.value = (scan->ext_rate[j++] & 0x7f) * 500000;
0618         tmp = iwe_stream_add_value(info, ev, tmp, stop, &iwe,
0619                        IW_EV_PARAM_LEN);
0620     }
0621     /* Check if we added any rate */
0622     if (iwe_stream_lcp_len(info) < (tmp - ev))
0623         ev = tmp;
0624
0625     /* ENCODE */
0626     iwe.cmd = SIOCGIWENCODE;
0627     if (be16_to_cpu(scan->capability) & WLAN_CAPABILITY_PRIVACY)
0628         iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
0629     else
0630         iwe.u.data.flags = IW_ENCODE_DISABLED;
0631     iwe.u.data.length = 0;
0632     ev = iwe_stream_add_point(info, ev, stop, &iwe, scan->essid);
0633
0634     /* MODE */
0635     iwe.cmd = SIOCGIWMODE;
0636     if (be16_to_cpu(scan->capability) &
0637         (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)) {
0638         if (be16_to_cpu(scan->capability) & WLAN_CAPABILITY_ESS)
0639             iwe.u.mode = IW_MODE_MASTER;
0640         else
0641             iwe.u.mode = IW_MODE_ADHOC;
0642         ev = iwe_stream_add_event(info, ev, stop, &iwe, IW_EV_UINT_LEN);
0643     }
0644
0645     /* QUAL */
0646     iwe.cmd = IWEVQUAL;
0647     iwe.u.qual.updated  = IW_QUAL_ALL_UPDATED |
0648             IW_QUAL_QUAL_INVALID | IW_QUAL_NOISE_INVALID;
0649     iwe.u.qual.level = be16_to_cpu(scan->rssi);
0650     iwe.u.qual.qual = be16_to_cpu(scan->rssi);
0651     iwe.u.qual.noise = 0;
0652     ev  = iwe_stream_add_event(info, ev, stop, &iwe, IW_EV_QUAL_LEN);
0653
0654     /* RSN */
0655     memset(&iwe, 0, sizeof(iwe));
0656     if (be16_to_cpu(scan->size) <= sizeof(*scan)) {
0657         /* If wpa[2] capable station, synthesize IE and put it */
0658         len = gelic_wl_synthesize_ie(buf, scan);
0659         if (len) {
0660             iwe.cmd = IWEVGENIE;
0661             iwe.u.data.length = len;
0662             ev = iwe_stream_add_point(info, ev, stop, &iwe, buf);
0663         }
0664     } else {
0665         /* this scan info has IE data */
0666         struct ie_info ie_info;
0667         size_t data_len;
0668
0669         data_len = be16_to_cpu(scan->size) - sizeof(*scan);
0670
0671         gelic_wl_parse_ie(scan->elements, data_len, &ie_info);
0672
0673         if (ie_info.wpa.len && (ie_info.wpa.len <= sizeof(buf))) {
0674             memcpy(buf, ie_info.wpa.data, ie_info.wpa.len);
0675             iwe.cmd = IWEVGENIE;
0676             iwe.u.data.length = ie_info.wpa.len;
0677             ev = iwe_stream_add_point(info, ev, stop, &iwe, buf);
0678         }
0679
0680         if (ie_info.rsn.len && (ie_info.rsn.len <= sizeof(buf))) {
0681             memset(&iwe, 0, sizeof(iwe));
0682             memcpy(buf, ie_info.rsn.data, ie_info.rsn.len);
0683             iwe.cmd = IWEVGENIE;
0684             iwe.u.data.length = ie_info.rsn.len;
0685             ev = iwe_stream_add_point(info, ev, stop, &iwe, buf);
0686         }
0687     }
0688
0689     pr_debug("%s: ->\n", __func__);
0690     return ev;
0691 }
0692
0693
0694 static int gelic_wl_get_scan(struct net_device *netdev,
0695                  struct iw_request_info *info,
0696                  union iwreq_data *wrqu, char *extra)
0697 {
0698     struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
0699     struct gelic_wl_scan_info *scan_info;
0700     char *ev = extra;
0701     char *stop = ev + wrqu->data.length;
0702     int ret = 0;
0703     unsigned long this_time = jiffies;
0704
0705     pr_debug("%s: <-\n", __func__);
0706     if (mutex_lock_interruptible(&wl->scan_lock))
0707         return -EAGAIN;
0708
0709     switch (wl->scan_stat) {
0710     case GELIC_WL_SCAN_STAT_SCANNING:
0711         /* If a scan in progress, caller should call me again */
0712         ret = -EAGAIN;
0713         goto out;
0714     case GELIC_WL_SCAN_STAT_INIT:
0715         /* last scan request failed or never issued */
0716         ret = -ENODEV;
0717         goto out;
0718     case GELIC_WL_SCAN_STAT_GOT_LIST:
0719         /* ok, use current list */
0720         break;
0721     }
0722
0723     list_for_each_entry(scan_info, &wl->network_list, list) {
0724         if (wl->scan_age == 0 ||
0725             time_after(scan_info->last_scanned + wl->scan_age,
0726                    this_time))
0727             ev = gelic_wl_translate_scan(netdev, info,
0728                              ev, stop,
0729                              scan_info);
0730         else
0731             pr_debug("%s:entry too old\n", __func__);
0732
0733         if (stop - ev <= IW_EV_ADDR_LEN) {
0734             ret = -E2BIG;
0735             goto out;
0736         }
0737     }
0738
0739     wrqu->data.length = ev - extra;
0740     wrqu->data.flags = 0;
0741 out:
0742     mutex_unlock(&wl->scan_lock);
0743     pr_debug("%s: -> %d %d\n", __func__, ret, wrqu->data.length);
0744     return ret;
0745 }
0746
0747 #ifdef DEBUG
0748 static void scan_list_dump(struct gelic_wl_info *wl)
0749 {
0750     struct gelic_wl_scan_info *scan_info;
0751     int i;
0752
0753     i = 0;
0754     list_for_each_entry(scan_info, &wl->network_list, list) {
0755         pr_debug("%s: item %d\n", __func__, i++);
0756         pr_debug("valid=%d eurusindex=%d last=%lx\n",
0757              scan_info->valid, scan_info->eurus_index,
0758              scan_info->last_scanned);
0759         pr_debug("r_len=%d r_ext_len=%d essid_len=%d\n",
0760              scan_info->rate_len, scan_info->rate_ext_len,
0761              scan_info->essid_len);
0762         /* -- */
0763         pr_debug("bssid=%pM\n", &scan_info->hwinfo->bssid[2]);
0764         pr_debug("essid=%s\n", scan_info->hwinfo->essid);
0765     }
0766 }
0767 #endif
0768
0769 static int gelic_wl_set_auth(struct net_device *netdev,
0770                  struct iw_request_info *info,
0771                  union iwreq_data *data, char *extra)
0772 {
0773     struct iw_param *param = &data->param;
0774     struct gelic_wl_info *wl = port_wl(netdev_port(netdev));
0775     unsigned long irqflag;
0776     int ret = 0;
0777
0778     pr_debug("%s: <- %d\n", __func__, param->flags & IW_AUTH_INDEX);
0779     spin_lock_irqsave(&wl->lock, irqflag);
0780     switch (param->flags & IW_AUTH_INDEX) {
0781     case IW_AUTH_WPA_VERSION:
0782         if (param->value & IW_AUTH_WPA_VERSION_DISABLED) {
0783             pr_debug("%s: NO WPA selected\n", __func__);
0784             wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
0785             wl->group_cipher_method = GELIC_WL_CIPHER_WEP;
0786             wl->pairwise_cipher_method = GELIC_WL_CIPHER_WEP;
0787         }
0788         if (param->value & IW_AUTH_WPA_VERSION_WPA) {
0789             pr_debug("%s: WPA version 1 selected\n", __func__);
0790             wl->wpa_level = GELIC_WL_WPA_LEVEL_WPA;
0791             wl->group_cipher_method = GELIC_WL_CIPHER_TKIP;
0792             wl->pairwise_cipher_method = GELIC_WL_CIPHER_TKIP;
0793             wl->auth_method = GELIC_EURUS_AUTH_OPEN;
0794         }
0795         if (param->value & IW_AUTH_WPA_VERSION_WPA2) {
0796             /*
0797              * As the hypervisor may not tell the cipher
0798              * information of the AP if it is WPA2,
0799              * you will not decide suitable cipher from
0800              * its beacon.
0801              * You should have knowledge about the AP's
0802              * cipher information in other method prior to
0803              * the association.
0804              */
0805             if (!precise_ie())
0806                 pr_info("%s: WPA2 may not work\n", __func__);
0807             if (wpa2_capable()) {
0808                 wl->wpa_level = GELIC_WL_WPA_LEVEL_WPA2;
0809                 wl->group_cipher_method = GELIC_WL_CIPHER_AES;
0810                 wl->pairwise_cipher_method =
0811                     GELIC_WL_CIPHER_AES;
0812                 wl->auth_method = GELIC_EURUS_AUTH_OPEN;
0813             } else
0814                 ret = -EINVAL;
0815         }
0816         break;
0817
0818     case IW_AUTH_CIPHER_PAIRWISE:
0819         if (param->value &
0820             (IW_AUTH_CIPHER_WEP104 | IW_AUTH_CIPHER_WEP40)) {
0821             pr_debug("%s: WEP selected\n", __func__);
0822             wl->pairwise_cipher_method = GELIC_WL_CIPHER_WEP;
0823         }
0824         if (param->value & IW_AUTH_CIPHER_TKIP) {
0825             pr_debug("%s: TKIP selected\n", __func__);
0826             wl->pairwise_cipher_method = GELIC_WL_CIPHER_TKIP;
0827         }
0828         if (param->value & IW_AUTH_CIPHER_CCMP) {
0829             pr_debug("%s: CCMP selected\n", __func__);
0830             wl->pairwise_cipher_method = GELIC_WL_CIPHER_AES;
0831         }
0832         if (param->value & IW_AUTH_CIPHER_NONE) {
0833             pr_debug("%s: no auth selected\n", __func__);
0834             wl->pairwise_cipher_method = GELIC_WL_CIPHER_NONE;
0835         }
0836         break;
0837     case IW_AUTH_CIPHER_GROUP:
0838         if (param->value &
0839             (IW_AUTH_CIPHER_WEP104 | IW_AUTH_CIPHER_WEP40)) {
0840             pr_debug("%s: WEP selected\n", __func__);
0841             wl->group_cipher_method = GELIC_WL_CIPHER_WEP;
0842         }
0843         if (param->value & IW_AUTH_CIPHER_TKIP) {
0844             pr_debug("%s: TKIP selected\n", __func__);
0845             wl->group_cipher_method = GELIC_WL_CIPHER_TKIP;
0846         }
0847         if (param->value & IW_AUTH_CIPHER_CCMP) {
0848             pr_debug("%s: CCMP selected\n", __func__);
0849             wl->group_cipher_method = GELIC_WL_CIPHER_AES;
0850         }
0851         if (param->value & IW_AUTH_CIPHER_NONE) {
0852             pr_debug("%s: no auth selected\n", __func__);
0853             wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
0854         }
0855         break;
0856     case IW_AUTH_80211_AUTH_ALG:
0857         if (param->value & IW_AUTH_ALG_SHARED_KEY) {
0858             pr_debug("%s: shared key specified\n", __func__);
0859             wl->auth_method = GELIC_EURUS_AUTH_SHARED;
0860         } else if (param->value & IW_AUTH_ALG_OPEN_SYSTEM) {
0861             pr_debug("%s: open system specified\n", __func__);
0862             wl->auth_method = GELIC_EURUS_AUTH_OPEN;
0863         } else
0864             ret = -EINVAL;
0865         break;
0866
0867     case IW_AUTH_WPA_ENABLED:
0868         if (param->value) {
0869             pr_debug("%s: WPA enabled\n", __func__);
0870             wl->wpa_level = GELIC_WL_WPA_LEVEL_WPA;
0871         } else {
0872             pr_debug("%s: WPA disabled\n", __func__);
0873             wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
0874         }
0875         break;
0876
0877     case IW_AUTH_KEY_MGMT:
0878         if (param->value & IW_AUTH_KEY_MGMT_PSK)
0879             break;
0880         fallthrough;
0881     default:
0882         ret = -EOPNOTSUPP;
0883         break;
0884     }
0885
0886     if (!ret)
0887         set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
0888
0889     spin_unlock_irqrestore(&wl->lock, irqflag);
0890     pr_debug("%s: -> %d\n", __func__, ret);
0891     return ret;
0892 }
0893
0894 static int gelic_wl_get_auth(struct net_device *netdev,
0895                  struct iw_request_info *info,
0896                  union iwreq_data *iwreq, char *extra)
0897 {
0898     struct iw_param *param = &iwreq->param;
0899     struct gelic_wl_info *wl = port_wl(netdev_port(netdev));
0900     unsigned long irqflag;
0901     int ret = 0;
0902
0903     pr_debug("%s: <- %d\n", __func__, param->flags & IW_AUTH_INDEX);
0904     spin_lock_irqsave(&wl->lock, irqflag);
0905     switch (param->flags & IW_AUTH_INDEX) {
0906     case IW_AUTH_WPA_VERSION:
0907         switch (wl->wpa_level) {
0908         case GELIC_WL_WPA_LEVEL_WPA:
0909             param->value |= IW_AUTH_WPA_VERSION_WPA;
0910             break;
0911         case GELIC_WL_WPA_LEVEL_WPA2:
0912             param->value |= IW_AUTH_WPA_VERSION_WPA2;
0913             break;
0914         default:
0915             param->value |= IW_AUTH_WPA_VERSION_DISABLED;
0916         }
0917         break;
0918
0919     case IW_AUTH_80211_AUTH_ALG:
0920         if (wl->auth_method == GELIC_EURUS_AUTH_SHARED)
0921             param->value = IW_AUTH_ALG_SHARED_KEY;
0922         else if (wl->auth_method == GELIC_EURUS_AUTH_OPEN)
0923             param->value = IW_AUTH_ALG_OPEN_SYSTEM;
0924         break;
0925
0926     case IW_AUTH_WPA_ENABLED:
0927         switch (wl->wpa_level) {
0928         case GELIC_WL_WPA_LEVEL_WPA:
0929         case GELIC_WL_WPA_LEVEL_WPA2:
0930             param->value = 1;
0931             break;
0932         default:
0933             param->value = 0;
0934             break;
0935         }
0936         break;
0937     default:
0938         ret = -EOPNOTSUPP;
0939     }
0940
0941     spin_unlock_irqrestore(&wl->lock, irqflag);
0942     pr_debug("%s: -> %d\n", __func__, ret);
0943     return ret;
0944 }
0945
0946 /* SIOC{S,G}IWESSID */
0947 static int gelic_wl_set_essid(struct net_device *netdev,
0948                   struct iw_request_info *info,
0949                   union iwreq_data *data, char *extra)
0950 {
0951     struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
0952     unsigned long irqflag;
0953
0954     pr_debug("%s: <- l=%d f=%d\n", __func__,
0955          data->essid.length, data->essid.flags);
0956     if (IW_ESSID_MAX_SIZE < data->essid.length)
0957         return -EINVAL;
0958
0959     spin_lock_irqsave(&wl->lock, irqflag);
0960     if (data->essid.flags) {
0961         wl->essid_len = data->essid.length;
0962         memcpy(wl->essid, extra, wl->essid_len);
0963         pr_debug("%s: essid = '%s'\n", __func__, extra);
0964         set_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat);
0965     } else {
0966         pr_debug("%s: ESSID any\n", __func__);
0967         clear_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat);
0968     }
0969     set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
0970     spin_unlock_irqrestore(&wl->lock, irqflag);
0971
0972
0973     gelic_wl_try_associate(netdev); /* FIXME */
0974     pr_debug("%s: ->\n", __func__);
0975     return 0;
0976 }
0977
0978 static int gelic_wl_get_essid(struct net_device *netdev,
0979                   struct iw_request_info *info,
0980                   union iwreq_data *data, char *extra)
0981 {
0982     struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
0983     unsigned long irqflag;
0984
0985     pr_debug("%s: <-\n", __func__);
0986     mutex_lock(&wl->assoc_stat_lock);
0987     spin_lock_irqsave(&wl->lock, irqflag);
0988     if (test_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat) ||
0989         wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED) {
0990         memcpy(extra, wl->essid, wl->essid_len);
0991         data->essid.length = wl->essid_len;
0992         data->essid.flags = 1;
0993     } else
0994         data->essid.flags = 0;
0995
0996     mutex_unlock(&wl->assoc_stat_lock);
0997     spin_unlock_irqrestore(&wl->lock, irqflag);
0998     pr_debug("%s: -> len=%d\n", __func__, data->essid.length);
0999
1000     return 0;
1001 }
1002
1003 /* SIO{S,G}IWENCODE */
1004 static int gelic_wl_set_encode(struct net_device *netdev,
1005                    struct iw_request_info *info,
1006                    union iwreq_data *data, char *extra)
1007 {
1008     struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1009     struct iw_point *enc = &data->encoding;
1010     __u16 flags;
1011     unsigned long irqflag;
1012     int key_index, index_specified;
1013     int ret = 0;
1014
1015     pr_debug("%s: <-\n", __func__);
1016     flags = enc->flags & IW_ENCODE_FLAGS;
1017     key_index = enc->flags & IW_ENCODE_INDEX;
1018
1019     pr_debug("%s: key_index = %d\n", __func__, key_index);
1020     pr_debug("%s: key_len = %d\n", __func__, enc->length);
1021     pr_debug("%s: flag=%x\n", __func__, enc->flags & IW_ENCODE_FLAGS);
1022
1023     if (GELIC_WEP_KEYS < key_index)
1024         return -EINVAL;
1025
1026     spin_lock_irqsave(&wl->lock, irqflag);
1027     if (key_index) {
1028         index_specified = 1;
1029         key_index--;
1030     } else {
1031         index_specified = 0;
1032         key_index = wl->current_key;
1033     }
1034
1035     if (flags & IW_ENCODE_NOKEY) {
1036         /* if just IW_ENCODE_NOKEY, change current key index */
1037         if (!flags && index_specified) {
1038             wl->current_key = key_index;
1039             goto done;
1040         }
1041
1042         if (flags & IW_ENCODE_DISABLED) {
1043             if (!index_specified) {
1044                 /* disable encryption */
1045                 wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
1046                 wl->pairwise_cipher_method =
1047                     GELIC_WL_CIPHER_NONE;
1048                 /* invalidate all key */
1049                 wl->key_enabled = 0;
1050             } else
1051                 clear_bit(key_index, &wl->key_enabled);
1052         }
1053
1054         if (flags & IW_ENCODE_OPEN)
1055             wl->auth_method = GELIC_EURUS_AUTH_OPEN;
1056         if (flags & IW_ENCODE_RESTRICTED) {
1057             pr_info("%s: shared key mode enabled\n", __func__);
1058             wl->auth_method = GELIC_EURUS_AUTH_SHARED;
1059         }
1060     } else {
1061         if (IW_ENCODING_TOKEN_MAX < enc->length) {
1062             ret = -EINVAL;
1063             goto done;
1064         }
1065         wl->key_len[key_index] = enc->length;
1066         memcpy(wl->key[key_index], extra, enc->length);
1067         set_bit(key_index, &wl->key_enabled);
1068         wl->pairwise_cipher_method = GELIC_WL_CIPHER_WEP;
1069         wl->group_cipher_method = GELIC_WL_CIPHER_WEP;
1070     }
1071     set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
1072 done:
1073     spin_unlock_irqrestore(&wl->lock, irqflag);
1074     pr_debug("%s: ->\n", __func__);
1075     return ret;
1076 }
1077
1078 static int gelic_wl_get_encode(struct net_device *netdev,
1079                    struct iw_request_info *info,
1080                    union iwreq_data *data, char *extra)
1081 {
1082     struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1083     struct iw_point *enc = &data->encoding;
1084     unsigned long irqflag;
1085     unsigned int key_index;
1086     int ret = 0;
1087
1088     pr_debug("%s: <-\n", __func__);
1089     key_index = enc->flags & IW_ENCODE_INDEX;
1090     pr_debug("%s: flag=%#x point=%p len=%d extra=%p\n", __func__,
1091          enc->flags, enc->pointer, enc->length, extra);
1092     if (GELIC_WEP_KEYS < key_index)
1093         return -EINVAL;
1094
1095     spin_lock_irqsave(&wl->lock, irqflag);
1096     if (key_index)
1097         key_index--;
1098     else
1099         key_index = wl->current_key;
1100
1101     if (wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
1102         switch (wl->auth_method) {
1103         case GELIC_EURUS_AUTH_OPEN:
1104             enc->flags = IW_ENCODE_OPEN;
1105             break;
1106         case GELIC_EURUS_AUTH_SHARED:
1107             enc->flags = IW_ENCODE_RESTRICTED;
1108             break;
1109         }
1110     } else
1111         enc->flags = IW_ENCODE_DISABLED;
1112
1113     if (test_bit(key_index, &wl->key_enabled)) {
1114         if (enc->length < wl->key_len[key_index]) {
1115             ret = -EINVAL;
1116             goto done;
1117         }
1118         enc->length = wl->key_len[key_index];
1119         memcpy(extra, wl->key[key_index], wl->key_len[key_index]);
1120     } else {
1121         enc->length = 0;
1122         enc->flags |= IW_ENCODE_NOKEY;
1123     }
1124     enc->flags |= key_index + 1;
1125     pr_debug("%s: -> flag=%x len=%d\n", __func__,
1126          enc->flags, enc->length);
1127
1128 done:
1129     spin_unlock_irqrestore(&wl->lock, irqflag);
1130     return ret;
1131 }
1132
1133 /* SIOC{S,G}IWAP */
1134 static int gelic_wl_set_ap(struct net_device *netdev,
1135                struct iw_request_info *info,
1136                union iwreq_data *data, char *extra)
1137 {
1138     struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1139     unsigned long irqflag;
1140
1141     pr_debug("%s: <-\n", __func__);
1142     if (data->ap_addr.sa_family != ARPHRD_ETHER)
1143         return -EINVAL;
1144
1145     spin_lock_irqsave(&wl->lock, irqflag);
1146     if (is_valid_ether_addr(data->ap_addr.sa_data)) {
1147         memcpy(wl->bssid, data->ap_addr.sa_data,
1148                ETH_ALEN);
1149         set_bit(GELIC_WL_STAT_BSSID_SET, &wl->stat);
1150         set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
1151         pr_debug("%s: bss=%pM\n", __func__, wl->bssid);
1152     } else {
1153         pr_debug("%s: clear bssid\n", __func__);
1154         clear_bit(GELIC_WL_STAT_BSSID_SET, &wl->stat);
1155         eth_zero_addr(wl->bssid);
1156     }
1157     spin_unlock_irqrestore(&wl->lock, irqflag);
1158     pr_debug("%s: ->\n", __func__);
1159     return 0;
1160 }
1161
1162 static int gelic_wl_get_ap(struct net_device *netdev,
1163                struct iw_request_info *info,
1164                union iwreq_data *data, char *extra)
1165 {
1166     struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1167     unsigned long irqflag;
1168
1169     pr_debug("%s: <-\n", __func__);
1170     mutex_lock(&wl->assoc_stat_lock);
1171     spin_lock_irqsave(&wl->lock, irqflag);
1172     if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED) {
1173         data->ap_addr.sa_family = ARPHRD_ETHER;
1174         memcpy(data->ap_addr.sa_data, wl->active_bssid,
1175                ETH_ALEN);
1176     } else
1177         eth_zero_addr(data->ap_addr.sa_data);
1178
1179     spin_unlock_irqrestore(&wl->lock, irqflag);
1180     mutex_unlock(&wl->assoc_stat_lock);
1181     pr_debug("%s: ->\n", __func__);
1182     return 0;
1183 }
1184
1185 /* SIOC{S,G}IWENCODEEXT */
1186 static int gelic_wl_set_encodeext(struct net_device *netdev,
1187                   struct iw_request_info *info,
1188                   union iwreq_data *data, char *extra)
1189 {
1190     struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1191     struct iw_point *enc = &data->encoding;
1192     struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
1193     __u16 alg;
1194     __u16 flags;
1195     unsigned long irqflag;
1196     int key_index;
1197     int ret = 0;
1198
1199     pr_debug("%s: <-\n", __func__);
1200     flags = enc->flags & IW_ENCODE_FLAGS;
1201     alg = ext->alg;
1202     key_index = enc->flags & IW_ENCODE_INDEX;
1203
1204     pr_debug("%s: key_index = %d\n", __func__, key_index);
1205     pr_debug("%s: key_len = %d\n", __func__, enc->length);
1206     pr_debug("%s: flag=%x\n", __func__, enc->flags & IW_ENCODE_FLAGS);
1207     pr_debug("%s: ext_flag=%x\n", __func__, ext->ext_flags);
1208     pr_debug("%s: ext_key_len=%x\n", __func__, ext->key_len);
1209
1210     if (GELIC_WEP_KEYS < key_index)
1211         return -EINVAL;
1212
1213     spin_lock_irqsave(&wl->lock, irqflag);
1214     if (key_index)
1215         key_index--;
1216     else
1217         key_index = wl->current_key;
1218
1219     if (!enc->length && (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY)) {
1220         /* reques to change default key index */
1221         pr_debug("%s: request to change default key to %d\n",
1222              __func__, key_index);
1223         wl->current_key = key_index;
1224         goto done;
1225     }
1226
1227     if (alg == IW_ENCODE_ALG_NONE || (flags & IW_ENCODE_DISABLED)) {
1228         pr_debug("%s: alg disabled\n", __func__);
1229         wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
1230         wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
1231         wl->pairwise_cipher_method = GELIC_WL_CIPHER_NONE;
1232         wl->auth_method = GELIC_EURUS_AUTH_OPEN; /* should be open */
1233     } else if (alg == IW_ENCODE_ALG_WEP) {
1234         pr_debug("%s: WEP requested\n", __func__);
1235         if (flags & IW_ENCODE_OPEN) {
1236             pr_debug("%s: open key mode\n", __func__);
1237             wl->auth_method = GELIC_EURUS_AUTH_OPEN;
1238         }
1239         if (flags & IW_ENCODE_RESTRICTED) {
1240             pr_debug("%s: shared key mode\n", __func__);
1241             wl->auth_method = GELIC_EURUS_AUTH_SHARED;
1242         }
1243         if (IW_ENCODING_TOKEN_MAX < ext->key_len) {
1244             pr_info("%s: key is too long %d\n", __func__,
1245                 ext->key_len);
1246             ret = -EINVAL;
1247             goto done;
1248         }
1249         /* OK, update the key */
1250         wl->key_len[key_index] = ext->key_len;
1251         memset(wl->key[key_index], 0, IW_ENCODING_TOKEN_MAX);
1252         memcpy(wl->key[key_index], ext->key, ext->key_len);
1253         set_bit(key_index, &wl->key_enabled);
1254         /* remember wep info changed */
1255         set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
1256     } else if (alg == IW_ENCODE_ALG_PMK) {
1257         if (ext->key_len != WPA_PSK_LEN) {
1258             pr_err("%s: PSK length wrong %d\n", __func__,
1259                    ext->key_len);
1260             ret = -EINVAL;
1261             goto done;
1262         }
1263         memset(wl->psk, 0, sizeof(wl->psk));
1264         memcpy(wl->psk, ext->key, ext->key_len);
1265         wl->psk_len = ext->key_len;
1266         wl->psk_type = GELIC_EURUS_WPA_PSK_BIN;
1267         /* remember PSK configured */
1268         set_bit(GELIC_WL_STAT_WPA_PSK_SET, &wl->stat);
1269     }
1270 done:
1271     spin_unlock_irqrestore(&wl->lock, irqflag);
1272     pr_debug("%s: ->\n", __func__);
1273     return ret;
1274 }
1275
1276 static int gelic_wl_get_encodeext(struct net_device *netdev,
1277                   struct iw_request_info *info,
1278                   union iwreq_data *data, char *extra)
1279 {
1280     struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1281     struct iw_point *enc = &data->encoding;
1282     struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
1283     unsigned long irqflag;
1284     int key_index;
1285     int ret = 0;
1286     int max_key_len;
1287
1288     pr_debug("%s: <-\n", __func__);
1289
1290     max_key_len = enc->length - sizeof(struct iw_encode_ext);
1291     if (max_key_len < 0)
1292         return -EINVAL;
1293     key_index = enc->flags & IW_ENCODE_INDEX;
1294
1295     pr_debug("%s: key_index = %d\n", __func__, key_index);
1296     pr_debug("%s: key_len = %d\n", __func__, enc->length);
1297     pr_debug("%s: flag=%x\n", __func__, enc->flags & IW_ENCODE_FLAGS);
1298
1299     if (GELIC_WEP_KEYS < key_index)
1300         return -EINVAL;
1301
1302     spin_lock_irqsave(&wl->lock, irqflag);
1303     if (key_index)
1304         key_index--;
1305     else
1306         key_index = wl->current_key;
1307
1308     memset(ext, 0, sizeof(struct iw_encode_ext));
1309     switch (wl->group_cipher_method) {
1310     case GELIC_WL_CIPHER_WEP:
1311         ext->alg = IW_ENCODE_ALG_WEP;
1312         enc->flags |= IW_ENCODE_ENABLED;
1313         break;
1314     case GELIC_WL_CIPHER_TKIP:
1315         ext->alg = IW_ENCODE_ALG_TKIP;
1316         enc->flags |= IW_ENCODE_ENABLED;
1317         break;
1318     case GELIC_WL_CIPHER_AES:
1319         ext->alg = IW_ENCODE_ALG_CCMP;
1320         enc->flags |= IW_ENCODE_ENABLED;
1321         break;
1322     case GELIC_WL_CIPHER_NONE:
1323     default:
1324         ext->alg = IW_ENCODE_ALG_NONE;
1325         enc->flags |= IW_ENCODE_NOKEY;
1326         break;
1327     }
1328
1329     if (!(enc->flags & IW_ENCODE_NOKEY)) {
1330         if (max_key_len < wl->key_len[key_index]) {
1331             ret = -E2BIG;
1332             goto out;
1333         }
1334         if (test_bit(key_index, &wl->key_enabled))
1335             memcpy(ext->key, wl->key[key_index],
1336                    wl->key_len[key_index]);
1337         else
1338             pr_debug("%s: disabled key requested ix=%d\n",
1339                  __func__, key_index);
1340     }
1341 out:
1342     spin_unlock_irqrestore(&wl->lock, irqflag);
1343     pr_debug("%s: ->\n", __func__);
1344     return ret;
1345 }
1346 /* SIOC{S,G}IWMODE */
1347 static int gelic_wl_set_mode(struct net_device *netdev,
1348                  struct iw_request_info *info,
1349                  union iwreq_data *data, char *extra)
1350 {
1351     __u32 mode = data->mode;
1352     int ret;
1353
1354     pr_debug("%s: <-\n", __func__);
1355     if (mode == IW_MODE_INFRA)
1356         ret = 0;
1357     else
1358         ret = -EOPNOTSUPP;
1359     pr_debug("%s: -> %d\n", __func__, ret);
1360     return ret;
1361 }
1362
1363 static int gelic_wl_get_mode(struct net_device *netdev,
1364                  struct iw_request_info *info,
1365                  union iwreq_data *data, char *extra)
1366 {
1367     __u32 *mode = &data->mode;
1368     pr_debug("%s: <-\n", __func__);
1369     *mode = IW_MODE_INFRA;
1370     pr_debug("%s: ->\n", __func__);
1371     return 0;
1372 }
1373
1374 /* SIOCGIWNICKN */
1375 static int gelic_wl_get_nick(struct net_device *net_dev,
1376                   struct iw_request_info *info,
1377                   union iwreq_data *data, char *extra)
1378 {
1379     strcpy(extra, "gelic_wl");
1380     data->data.length = strlen(extra);
1381     data->data.flags = 1;
1382     return 0;
1383 }
1384
1385
1386 /* --- */
1387
1388 static struct iw_statistics *gelic_wl_get_wireless_stats(
1389     struct net_device *netdev)
1390 {
1391
1392     struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
1393     struct gelic_eurus_cmd *cmd;
1394     struct iw_statistics *is;
1395     struct gelic_eurus_rssi_info *rssi;
1396     void *buf;
1397
1398     pr_debug("%s: <-\n", __func__);
1399
1400     buf = (void *)__get_free_page(GFP_KERNEL);
1401     if (!buf)
1402         return NULL;
1403
1404     is = &wl->iwstat;
1405     memset(is, 0, sizeof(*is));
1406     cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_GET_RSSI_CFG,
1407                    buf, sizeof(*rssi));
1408     if (cmd && !cmd->status && !cmd->cmd_status) {
1409         rssi = buf;
1410         is->qual.level = be16_to_cpu(rssi->rssi);
1411         is->qual.updated = IW_QUAL_LEVEL_UPDATED |
1412             IW_QUAL_QUAL_INVALID | IW_QUAL_NOISE_INVALID;
1413     } else
1414         /* not associated */
1415         is->qual.updated = IW_QUAL_ALL_INVALID;
1416
1417     kfree(cmd);
1418     free_page((unsigned long)buf);
1419     pr_debug("%s: ->\n", __func__);
1420     return is;
1421 }
1422
1423 /*
1424  *  scanning helpers
1425  */
1426 static int gelic_wl_start_scan(struct gelic_wl_info *wl, int always_scan,
1427                    u8 *essid, size_t essid_len)
1428 {
1429     struct gelic_eurus_cmd *cmd;
1430     int ret = 0;
1431     void *buf = NULL;
1432     size_t len;
1433
1434     pr_debug("%s: <- always=%d\n", __func__, always_scan);
1435     if (mutex_lock_interruptible(&wl->scan_lock))
1436         return -ERESTARTSYS;
1437
1438     /*
1439      * If already a scan in progress, do not trigger more
1440      */
1441     if (wl->scan_stat == GELIC_WL_SCAN_STAT_SCANNING) {
1442         pr_debug("%s: scanning now\n", __func__);
1443         goto out;
1444     }
1445
1446     init_completion(&wl->scan_done);
1447     /*
1448      * If we have already a bss list, don't try to get new
1449      * unless we are doing an ESSID scan
1450      */
1451     if ((!essid_len && !always_scan)
1452         && wl->scan_stat == GELIC_WL_SCAN_STAT_GOT_LIST) {
1453         pr_debug("%s: already has the list\n", __func__);
1454         complete(&wl->scan_done);
1455         goto out;
1456     }
1457
1458     /* ESSID scan ? */
1459     if (essid_len && essid) {
1460         buf = (void *)__get_free_page(GFP_KERNEL);
1461         if (!buf) {
1462             ret = -ENOMEM;
1463             goto out;
1464         }
1465         len = IW_ESSID_MAX_SIZE; /* hypervisor always requires 32 */
1466         memset(buf, 0, len);
1467         memcpy(buf, essid, essid_len);
1468         pr_debug("%s: essid scan='%s'\n", __func__, (char *)buf);
1469     } else
1470         len = 0;
1471
1472     /*
1473      * issue start scan request
1474      */
1475     wl->scan_stat = GELIC_WL_SCAN_STAT_SCANNING;
1476     cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_START_SCAN,
1477                    buf, len);
1478     if (!cmd || cmd->status || cmd->cmd_status) {
1479         wl->scan_stat = GELIC_WL_SCAN_STAT_INIT;
1480         complete(&wl->scan_done);
1481         ret = -ENOMEM;
1482         goto out;
1483     }
1484     kfree(cmd);
1485 out:
1486     free_page((unsigned long)buf);
1487     mutex_unlock(&wl->scan_lock);
1488     pr_debug("%s: ->\n", __func__);
1489     return ret;
1490 }
1491
1492 /*
1493  * retrieve scan result from the chip (hypervisor)
1494  * this function is invoked by schedule work.
1495  */
1496 static void gelic_wl_scan_complete_event(struct gelic_wl_info *wl)
1497 {
1498     struct gelic_eurus_cmd *cmd = NULL;
1499     struct gelic_wl_scan_info *target, *tmp;
1500     struct gelic_wl_scan_info *oldest = NULL;
1501     struct gelic_eurus_scan_info *scan_info;
1502     unsigned int scan_info_size;
1503     union iwreq_data data;
1504     unsigned long this_time = jiffies;
1505     unsigned int data_len, i, found, r;
1506     void *buf;
1507
1508     pr_debug("%s:start\n", __func__);
1509     mutex_lock(&wl->scan_lock);
1510
1511     buf = (void *)__get_free_page(GFP_KERNEL);
1512     if (!buf) {
1513         pr_info("%s: scan buffer alloc failed\n", __func__);
1514         goto out;
1515     }
1516
1517     if (wl->scan_stat != GELIC_WL_SCAN_STAT_SCANNING) {
1518         /*
1519          * stop() may be called while scanning, ignore result
1520          */
1521         pr_debug("%s: scan complete when stat != scanning(%d)\n",
1522              __func__, wl->scan_stat);
1523         goto out;
1524     }
1525
1526     cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_GET_SCAN,
1527                    buf, PAGE_SIZE);
1528     if (!cmd || cmd->status || cmd->cmd_status) {
1529         wl->scan_stat = GELIC_WL_SCAN_STAT_INIT;
1530         pr_info("%s:cmd failed\n", __func__);
1531         kfree(cmd);
1532         goto out;
1533     }
1534     data_len = cmd->size;
1535     pr_debug("%s: data_len = %d\n", __func__, data_len);
1536     kfree(cmd);
1537
1538     /* OK, bss list retrieved */
1539     wl->scan_stat = GELIC_WL_SCAN_STAT_GOT_LIST;
1540
1541     /* mark all entries are old */
1542     list_for_each_entry_safe(target, tmp, &wl->network_list, list) {
1543         target->valid = 0;
1544         /* expire too old entries */
1545         if (time_before(target->last_scanned + wl->scan_age,
1546                 this_time)) {
1547             kfree(target->hwinfo);
1548             target->hwinfo = NULL;
1549             list_move_tail(&target->list, &wl->network_free_list);
1550         }
1551     }
1552
1553     /* put them in the network_list */
1554     for (i = 0, scan_info_size = 0, scan_info = buf;
1555          scan_info_size < data_len;
1556          i++, scan_info_size += be16_to_cpu(scan_info->size),
1557          scan_info = (void *)scan_info + be16_to_cpu(scan_info->size)) {
1558         pr_debug("%s:size=%d bssid=%pM scan_info=%p\n", __func__,
1559              be16_to_cpu(scan_info->size),
1560              &scan_info->bssid[2], scan_info);
1561
1562         /*
1563          * The wireless firmware may return invalid channel 0 and/or
1564          * invalid rate if the AP emits zero length SSID ie. As this
1565          * scan information is useless, ignore it
1566          */
1567         if (!be16_to_cpu(scan_info->channel) || !scan_info->rate[0]) {
1568             pr_debug("%s: invalid scan info\n", __func__);
1569             continue;
1570         }
1571
1572         found = 0;
1573         oldest = NULL;
1574         list_for_each_entry(target, &wl->network_list, list) {
1575             if (ether_addr_equal(&target->hwinfo->bssid[2],
1576                          &scan_info->bssid[2])) {
1577                 found = 1;
1578                 pr_debug("%s: same BBS found scanned list\n",
1579                      __func__);
1580                 break;
1581             }
1582             if (!oldest ||
1583                 (target->last_scanned < oldest->last_scanned))
1584                 oldest = target;
1585         }
1586
1587         if (!found) {
1588             /* not found in the list */
1589             if (list_empty(&wl->network_free_list)) {
1590                 /* expire oldest */
1591                 target = oldest;
1592             } else {
1593                 target = list_entry(wl->network_free_list.next,
1594                             struct gelic_wl_scan_info,
1595                             list);
1596             }
1597         }
1598
1599         /* update the item */
1600         target->last_scanned = this_time;
1601         target->valid = 1;
1602         target->eurus_index = i;
1603         kfree(target->hwinfo);
1604         target->hwinfo = kmemdup(scan_info,
1605                      be16_to_cpu(scan_info->size),
1606                      GFP_KERNEL);
1607         if (!target->hwinfo)
1608             continue;
1609
1610         /* copy hw scan info */
1611         target->essid_len = strnlen(scan_info->essid,
1612                         sizeof(scan_info->essid));
1613         target->rate_len = 0;
1614         for (r = 0; r < 12; r++)
1615             if (scan_info->rate[r])
1616                 target->rate_len++;
1617         if (8 < target->rate_len)
1618             pr_info("%s: AP returns %d rates\n", __func__,
1619                 target->rate_len);
1620         target->rate_ext_len = 0;
1621         for (r = 0; r < 16; r++)
1622             if (scan_info->ext_rate[r])
1623                 target->rate_ext_len++;
1624         list_move_tail(&target->list, &wl->network_list);
1625     }
1626     memset(&data, 0, sizeof(data));
1627     wireless_send_event(port_to_netdev(wl_port(wl)), SIOCGIWSCAN, &data,
1628                 NULL);
1629 out:
1630     free_page((unsigned long)buf);
1631     complete(&wl->scan_done);
1632     mutex_unlock(&wl->scan_lock);
1633     pr_debug("%s:end\n", __func__);
1634 }
1635
1636 /*
1637  * Select an appropriate bss from current scan list regarding
1638  * current settings from userspace.
1639  * The caller must hold wl->scan_lock,
1640  * and on the state of wl->scan_state == GELIC_WL_SCAN_GOT_LIST
1641  */
1642 static void update_best(struct gelic_wl_scan_info **best,
1643             struct gelic_wl_scan_info *candid,
1644             int *best_weight,
1645             int *weight)
1646 {
1647     if (*best_weight < ++(*weight)) {
1648         *best_weight = *weight;
1649         *best = candid;
1650     }
1651 }
1652
1653 static
1654 struct gelic_wl_scan_info *gelic_wl_find_best_bss(struct gelic_wl_info *wl)
1655 {
1656     struct gelic_wl_scan_info *scan_info;
1657     struct gelic_wl_scan_info *best_bss;
1658     int weight, best_weight;
1659     u16 security;
1660
1661     pr_debug("%s: <-\n", __func__);
1662
1663     best_bss = NULL;
1664     best_weight = 0;
1665
1666     list_for_each_entry(scan_info, &wl->network_list, list) {
1667         pr_debug("%s: station %p\n", __func__, scan_info);
1668
1669         if (!scan_info->valid) {
1670             pr_debug("%s: station invalid\n", __func__);
1671             continue;
1672         }
1673
1674         /* If bss specified, check it only */
1675         if (test_bit(GELIC_WL_STAT_BSSID_SET, &wl->stat)) {
1676             if (ether_addr_equal(&scan_info->hwinfo->bssid[2],
1677                          wl->bssid)) {
1678                 best_bss = scan_info;
1679                 pr_debug("%s: bssid matched\n", __func__);
1680                 break;
1681             } else {
1682                 pr_debug("%s: bssid unmatched\n", __func__);
1683                 continue;
1684             }
1685         }
1686
1687         weight = 0;
1688
1689         /* security */
1690         security = be16_to_cpu(scan_info->hwinfo->security) &
1691             GELIC_EURUS_SCAN_SEC_MASK;
1692         if (wl->wpa_level == GELIC_WL_WPA_LEVEL_WPA2) {
1693             if (security == GELIC_EURUS_SCAN_SEC_WPA2)
1694                 update_best(&best_bss, scan_info,
1695                         &best_weight, &weight);
1696             else
1697                 continue;
1698         } else if (wl->wpa_level == GELIC_WL_WPA_LEVEL_WPA) {
1699             if (security == GELIC_EURUS_SCAN_SEC_WPA)
1700                 update_best(&best_bss, scan_info,
1701                         &best_weight, &weight);
1702             else
1703                 continue;
1704         } else if (wl->wpa_level == GELIC_WL_WPA_LEVEL_NONE &&
1705                wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
1706             if (security == GELIC_EURUS_SCAN_SEC_WEP)
1707                 update_best(&best_bss, scan_info,
1708                         &best_weight, &weight);
1709             else
1710                 continue;
1711         }
1712
1713         /* If ESSID is set, check it */
1714         if (test_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat)) {
1715             if ((scan_info->essid_len == wl->essid_len) &&
1716                 !strncmp(wl->essid,
1717                      scan_info->hwinfo->essid,
1718                      scan_info->essid_len))
1719                 update_best(&best_bss, scan_info,
1720                         &best_weight, &weight);
1721             else
1722                 continue;
1723         }
1724     }
1725
1726 #ifdef DEBUG
1727     pr_debug("%s: -> bss=%p\n", __func__, best_bss);
1728     if (best_bss) {
1729         pr_debug("%s:addr=%pM\n", __func__,
1730              &best_bss->hwinfo->bssid[2]);
1731     }
1732 #endif
1733     return best_bss;
1734 }
1735
1736 /*
1737  * Setup WEP configuration to the chip
1738  * The caller must hold wl->scan_lock,
1739  * and on the state of wl->scan_state == GELIC_WL_SCAN_GOT_LIST
1740  */
1741 static int gelic_wl_do_wep_setup(struct gelic_wl_info *wl)
1742 {
1743     unsigned int i;
1744     struct gelic_eurus_wep_cfg *wep;
1745     struct gelic_eurus_cmd *cmd;
1746     int wep104 = 0;
1747     int have_key = 0;
1748     int ret = 0;
1749
1750     pr_debug("%s: <-\n", __func__);
1751     /* we can assume no one should uses the buffer */
1752     wep = (struct gelic_eurus_wep_cfg *)__get_free_page(GFP_KERNEL);
1753     if (!wep)
1754         return -ENOMEM;
1755
1756     memset(wep, 0, sizeof(*wep));
1757
1758     if (wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
1759         pr_debug("%s: WEP mode\n", __func__);
1760         for (i = 0; i < GELIC_WEP_KEYS; i++) {
1761             if (!test_bit(i, &wl->key_enabled))
1762                 continue;
1763
1764             pr_debug("%s: key#%d enabled\n", __func__, i);
1765             have_key = 1;
1766             if (wl->key_len[i] == 13)
1767                 wep104 = 1;
1768             else if (wl->key_len[i] != 5) {
1769                 pr_info("%s: wrong wep key[%d]=%d\n",
1770                     __func__, i, wl->key_len[i]);
1771                 ret = -EINVAL;
1772                 goto out;
1773             }
1774             memcpy(wep->key[i], wl->key[i], wl->key_len[i]);
1775         }
1776
1777         if (!have_key) {
1778             pr_info("%s: all wep key disabled\n", __func__);
1779             ret = -EINVAL;
1780             goto out;
1781         }
1782
1783         if (wep104) {
1784             pr_debug("%s: 104bit key\n", __func__);
1785             wep->security = cpu_to_be16(GELIC_EURUS_WEP_SEC_104BIT);
1786         } else {
1787             pr_debug("%s: 40bit key\n", __func__);
1788             wep->security = cpu_to_be16(GELIC_EURUS_WEP_SEC_40BIT);
1789         }
1790     } else {
1791         pr_debug("%s: NO encryption\n", __func__);
1792         wep->security = cpu_to_be16(GELIC_EURUS_WEP_SEC_NONE);
1793     }
1794
1795     /* issue wep setup */
1796     cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_SET_WEP_CFG,
1797                    wep, sizeof(*wep));
1798     if (!cmd)
1799         ret = -ENOMEM;
1800     else if (cmd->status || cmd->cmd_status)
1801         ret = -ENXIO;
1802
1803     kfree(cmd);
1804 out:
1805     free_page((unsigned long)wep);
1806     pr_debug("%s: ->\n", __func__);
1807     return ret;
1808 }
1809
1810 #ifdef DEBUG
1811 static const char *wpasecstr(enum gelic_eurus_wpa_security sec)
1812 {
1813     switch (sec) {
1814     case GELIC_EURUS_WPA_SEC_NONE:
1815         return "NONE";
1816     case GELIC_EURUS_WPA_SEC_WPA_TKIP_TKIP:
1817         return "WPA_TKIP_TKIP";
1818     case GELIC_EURUS_WPA_SEC_WPA_TKIP_AES:
1819         return "WPA_TKIP_AES";
1820     case GELIC_EURUS_WPA_SEC_WPA_AES_AES:
1821         return "WPA_AES_AES";
1822     case GELIC_EURUS_WPA_SEC_WPA2_TKIP_TKIP:
1823         return "WPA2_TKIP_TKIP";
1824     case GELIC_EURUS_WPA_SEC_WPA2_TKIP_AES:
1825         return "WPA2_TKIP_AES";
1826     case GELIC_EURUS_WPA_SEC_WPA2_AES_AES:
1827         return "WPA2_AES_AES";
1828     }
1829     return "";
1830 };
1831 #endif
1832
1833 static int gelic_wl_do_wpa_setup(struct gelic_wl_info *wl)
1834 {
1835     struct gelic_eurus_wpa_cfg *wpa;
1836     struct gelic_eurus_cmd *cmd;
1837     u16 security;
1838     int ret = 0;
1839
1840     pr_debug("%s: <-\n", __func__);
1841     /* we can assume no one should uses the buffer */
1842     wpa = (struct gelic_eurus_wpa_cfg *)__get_free_page(GFP_KERNEL);
1843     if (!wpa)
1844         return -ENOMEM;
1845
1846     memset(wpa, 0, sizeof(*wpa));
1847
1848     if (!test_bit(GELIC_WL_STAT_WPA_PSK_SET, &wl->stat))
1849         pr_info("%s: PSK not configured yet\n", __func__);
1850
1851     /* copy key */
1852     memcpy(wpa->psk, wl->psk, wl->psk_len);
1853
1854     /* set security level */
1855     if (wl->wpa_level == GELIC_WL_WPA_LEVEL_WPA2) {
1856         if (wl->group_cipher_method == GELIC_WL_CIPHER_AES) {
1857             security = GELIC_EURUS_WPA_SEC_WPA2_AES_AES;
1858         } else {
1859             if (wl->pairwise_cipher_method == GELIC_WL_CIPHER_AES &&
1860                 precise_ie())
1861                 security = GELIC_EURUS_WPA_SEC_WPA2_TKIP_AES;
1862             else
1863                 security = GELIC_EURUS_WPA_SEC_WPA2_TKIP_TKIP;
1864         }
1865     } else {
1866         if (wl->group_cipher_method == GELIC_WL_CIPHER_AES) {
1867             security = GELIC_EURUS_WPA_SEC_WPA_AES_AES;
1868         } else {
1869             if (wl->pairwise_cipher_method == GELIC_WL_CIPHER_AES &&
1870                 precise_ie())
1871                 security = GELIC_EURUS_WPA_SEC_WPA_TKIP_AES;
1872             else
1873                 security = GELIC_EURUS_WPA_SEC_WPA_TKIP_TKIP;
1874         }
1875     }
1876     wpa->security = cpu_to_be16(security);
1877
1878     /* PSK type */
1879     wpa->psk_type = cpu_to_be16(wl->psk_type);
1880 #ifdef DEBUG
1881     pr_debug("%s: sec=%s psktype=%s\n", __func__,
1882          wpasecstr(wpa->security),
1883          (wpa->psk_type == GELIC_EURUS_WPA_PSK_BIN) ?
1884          "BIN" : "passphrase");
1885 #if 0
1886     /*
1887      * don't enable here if you plan to submit
1888      * the debug log because this dumps your precious
1889      * passphrase/key.
1890      */
1891     pr_debug("%s: psk=%s\n", __func__,
1892          (wpa->psk_type == GELIC_EURUS_WPA_PSK_BIN) ?
1893          "N/A" : wpa->psk);
1894 #endif
1895 #endif
1896     /* issue wpa setup */
1897     cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_SET_WPA_CFG,
1898                    wpa, sizeof(*wpa));
1899     if (!cmd)
1900         ret = -ENOMEM;
1901     else if (cmd->status || cmd->cmd_status)
1902         ret = -ENXIO;
1903     kfree(cmd);
1904     free_page((unsigned long)wpa);
1905     pr_debug("%s: --> %d\n", __func__, ret);
1906     return ret;
1907 }
1908
1909 /*
1910  * Start association. caller must hold assoc_stat_lock
1911  */
1912 static int gelic_wl_associate_bss(struct gelic_wl_info *wl,
1913                   struct gelic_wl_scan_info *bss)
1914 {
1915     struct gelic_eurus_cmd *cmd;
1916     struct gelic_eurus_common_cfg *common;
1917     int ret = 0;
1918     unsigned long rc;
1919
1920     pr_debug("%s: <-\n", __func__);
1921
1922     /* do common config */
1923     common = (struct gelic_eurus_common_cfg *)__get_free_page(GFP_KERNEL);
1924     if (!common)
1925         return -ENOMEM;
1926
1927     memset(common, 0, sizeof(*common));
1928     common->bss_type = cpu_to_be16(GELIC_EURUS_BSS_INFRA);
1929     common->op_mode = cpu_to_be16(GELIC_EURUS_OPMODE_11BG);
1930
1931     common->scan_index = cpu_to_be16(bss->eurus_index);
1932     switch (wl->auth_method) {
1933     case GELIC_EURUS_AUTH_OPEN:
1934         common->auth_method = cpu_to_be16(GELIC_EURUS_AUTH_OPEN);
1935         break;
1936     case GELIC_EURUS_AUTH_SHARED:
1937         common->auth_method = cpu_to_be16(GELIC_EURUS_AUTH_SHARED);
1938         break;
1939     }
1940
1941 #ifdef DEBUG
1942     scan_list_dump(wl);
1943 #endif
1944     pr_debug("%s: common cfg index=%d bsstype=%d auth=%d\n", __func__,
1945          be16_to_cpu(common->scan_index),
1946          be16_to_cpu(common->bss_type),
1947          be16_to_cpu(common->auth_method));
1948
1949     cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_SET_COMMON_CFG,
1950                    common, sizeof(*common));
1951     if (!cmd || cmd->status || cmd->cmd_status) {
1952         ret = -ENOMEM;
1953         kfree(cmd);
1954         goto out;
1955     }
1956     kfree(cmd);
1957
1958     /* WEP/WPA */
1959     switch (wl->wpa_level) {
1960     case GELIC_WL_WPA_LEVEL_NONE:
1961         /* If WEP or no security, setup WEP config */
1962         ret = gelic_wl_do_wep_setup(wl);
1963         break;
1964     case GELIC_WL_WPA_LEVEL_WPA:
1965     case GELIC_WL_WPA_LEVEL_WPA2:
1966         ret = gelic_wl_do_wpa_setup(wl);
1967         break;
1968     }
1969
1970     if (ret) {
1971         pr_debug("%s: WEP/WPA setup failed %d\n", __func__,
1972              ret);
1973         ret = -EPERM;
1974         gelic_wl_send_iwap_event(wl, NULL);
1975         goto out;
1976     }
1977
1978     /* start association */
1979     init_completion(&wl->assoc_done);
1980     wl->assoc_stat = GELIC_WL_ASSOC_STAT_ASSOCIATING;
1981     cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_ASSOC,
1982                    NULL, 0);
1983     if (!cmd || cmd->status || cmd->cmd_status) {
1984         pr_debug("%s: assoc request failed\n", __func__);
1985         wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
1986         kfree(cmd);
1987         ret = -ENOMEM;
1988         gelic_wl_send_iwap_event(wl, NULL);
1989         goto out;
1990     }
1991     kfree(cmd);
1992
1993     /* wait for connected event */
1994     rc = wait_for_completion_timeout(&wl->assoc_done, HZ * 4);/*FIXME*/
1995
1996     if (!rc) {
1997         /* timeouted.  Maybe key or cyrpt mode is wrong */
1998         pr_info("%s: connect timeout\n", __func__);
1999         cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_DISASSOC,
2000                        NULL, 0);
2001         kfree(cmd);
2002         wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
2003         gelic_wl_send_iwap_event(wl, NULL);
2004         ret = -ENXIO;
2005     } else {
2006         wl->assoc_stat = GELIC_WL_ASSOC_STAT_ASSOCIATED;
2007         /* copy bssid */
2008         memcpy(wl->active_bssid, &bss->hwinfo->bssid[2], ETH_ALEN);
2009
2010         /* send connect event */
2011         gelic_wl_send_iwap_event(wl, wl->active_bssid);
2012         pr_info("%s: connected\n", __func__);
2013     }
2014 out:
2015     free_page((unsigned long)common);
2016     pr_debug("%s: ->\n", __func__);
2017     return ret;
2018 }
2019
2020 /*
2021  * connected event
2022  */
2023 static void gelic_wl_connected_event(struct gelic_wl_info *wl,
2024                      u64 event)
2025 {
2026     u64 desired_event = 0;
2027
2028     switch (wl->wpa_level) {
2029     case GELIC_WL_WPA_LEVEL_NONE:
2030         desired_event = GELIC_LV1_WL_EVENT_CONNECTED;
2031         break;
2032     case GELIC_WL_WPA_LEVEL_WPA:
2033     case GELIC_WL_WPA_LEVEL_WPA2:
2034         desired_event = GELIC_LV1_WL_EVENT_WPA_CONNECTED;
2035         break;
2036     }
2037
2038     if (desired_event == event) {
2039         pr_debug("%s: completed\n", __func__);
2040         complete(&wl->assoc_done);
2041         netif_carrier_on(port_to_netdev(wl_port(wl)));
2042     } else
2043         pr_debug("%s: event %#llx under wpa\n",
2044                  __func__, event);
2045 }
2046
2047 /*
2048  * disconnect event
2049  */
2050 static void gelic_wl_disconnect_event(struct gelic_wl_info *wl,
2051                       u64 event)
2052 {
2053     struct gelic_eurus_cmd *cmd;
2054     int lock;
2055
2056     /*
2057      * If we fall here in the middle of association,
2058      * associate_bss() should be waiting for complation of
2059      * wl->assoc_done.
2060      * As it waits with timeout, just leave assoc_done
2061      * uncompleted, then it terminates with timeout
2062      */
2063     if (!mutex_trylock(&wl->assoc_stat_lock)) {
2064         pr_debug("%s: already locked\n", __func__);
2065         lock = 0;
2066     } else {
2067         pr_debug("%s: obtain lock\n", __func__);
2068         lock = 1;
2069     }
2070
2071     cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_DISASSOC, NULL, 0);
2072     kfree(cmd);
2073
2074     /* send disconnected event to the supplicant */
2075     if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
2076         gelic_wl_send_iwap_event(wl, NULL);
2077
2078     wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
2079     netif_carrier_off(port_to_netdev(wl_port(wl)));
2080
2081     if (lock)
2082         mutex_unlock(&wl->assoc_stat_lock);
2083 }
2084 /*
2085  * event worker
2086  */
2087 #ifdef DEBUG
2088 static const char *eventstr(enum gelic_lv1_wl_event event)
2089 {
2090     static char buf[32];
2091     char *ret;
2092     if (event & GELIC_LV1_WL_EVENT_DEVICE_READY)
2093         ret = "EURUS_READY";
2094     else if (event & GELIC_LV1_WL_EVENT_SCAN_COMPLETED)
2095         ret = "SCAN_COMPLETED";
2096     else if (event & GELIC_LV1_WL_EVENT_DEAUTH)
2097         ret = "DEAUTH";
2098     else if (event & GELIC_LV1_WL_EVENT_BEACON_LOST)
2099         ret = "BEACON_LOST";
2100     else if (event & GELIC_LV1_WL_EVENT_CONNECTED)
2101         ret = "CONNECTED";
2102     else if (event & GELIC_LV1_WL_EVENT_WPA_CONNECTED)
2103         ret = "WPA_CONNECTED";
2104     else if (event & GELIC_LV1_WL_EVENT_WPA_ERROR)
2105         ret = "WPA_ERROR";
2106     else {
2107         sprintf(buf, "Unknown(%#x)", event);
2108         ret = buf;
2109     }
2110     return ret;
2111 }
2112 #else
2113 static const char *eventstr(enum gelic_lv1_wl_event event)
2114 {
2115     return NULL;
2116 }
2117 #endif
2118 static void gelic_wl_event_worker(struct work_struct *work)
2119 {
2120     struct gelic_wl_info *wl;
2121     struct gelic_port *port;
2122     u64 event, tmp;
2123     int status;
2124
2125     pr_debug("%s:start\n", __func__);
2126     wl = container_of(work, struct gelic_wl_info, event_work.work);
2127     port = wl_port(wl);
2128     while (1) {
2129         status = lv1_net_control(bus_id(port->card), dev_id(port->card),
2130                      GELIC_LV1_GET_WLAN_EVENT, 0, 0, 0,
2131                      &event, &tmp);
2132         if (status) {
2133             if (status != LV1_NO_ENTRY)
2134                 pr_debug("%s:wlan event failed %d\n",
2135                      __func__, status);
2136             /* got all events */
2137             pr_debug("%s:end\n", __func__);
2138             return;
2139         }
2140         pr_debug("%s: event=%s\n", __func__, eventstr(event));
2141         switch (event) {
2142         case GELIC_LV1_WL_EVENT_SCAN_COMPLETED:
2143             gelic_wl_scan_complete_event(wl);
2144             break;
2145         case GELIC_LV1_WL_EVENT_BEACON_LOST:
2146         case GELIC_LV1_WL_EVENT_DEAUTH:
2147             gelic_wl_disconnect_event(wl, event);
2148             break;
2149         case GELIC_LV1_WL_EVENT_CONNECTED:
2150         case GELIC_LV1_WL_EVENT_WPA_CONNECTED:
2151             gelic_wl_connected_event(wl, event);
2152             break;
2153         default:
2154             break;
2155         }
2156     } /* while */
2157 }
2158 /*
2159  * association worker
2160  */
2161 static void gelic_wl_assoc_worker(struct work_struct *work)
2162 {
2163     struct gelic_wl_info *wl;
2164
2165     struct gelic_wl_scan_info *best_bss;
2166     int ret;
2167     unsigned long irqflag;
2168     u8 *essid;
2169     size_t essid_len;
2170
2171     wl = container_of(work, struct gelic_wl_info, assoc_work.work);
2172
2173     mutex_lock(&wl->assoc_stat_lock);
2174
2175     if (wl->assoc_stat != GELIC_WL_ASSOC_STAT_DISCONN)
2176         goto out;
2177
2178     spin_lock_irqsave(&wl->lock, irqflag);
2179     if (test_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat)) {
2180         pr_debug("%s: assoc ESSID configured %s\n", __func__,
2181              wl->essid);
2182         essid = wl->essid;
2183         essid_len = wl->essid_len;
2184     } else {
2185         essid = NULL;
2186         essid_len = 0;
2187     }
2188     spin_unlock_irqrestore(&wl->lock, irqflag);
2189
2190     ret = gelic_wl_start_scan(wl, 0, essid, essid_len);
2191     if (ret == -ERESTARTSYS) {
2192         pr_debug("%s: scan start failed association\n", __func__);
2193         schedule_delayed_work(&wl->assoc_work, HZ/10); /*FIXME*/
2194         goto out;
2195     } else if (ret) {
2196         pr_info("%s: scan prerequisite failed\n", __func__);
2197         goto out;
2198     }
2199
2200     /*
2201      * Wait for bss scan completion
2202      * If we have scan list already, gelic_wl_start_scan()
2203      * returns OK and raises the complete.  Thus,
2204      * it's ok to wait unconditionally here
2205      */
2206     wait_for_completion(&wl->scan_done);
2207
2208     pr_debug("%s: scan done\n", __func__);
2209     mutex_lock(&wl->scan_lock);
2210     if (wl->scan_stat != GELIC_WL_SCAN_STAT_GOT_LIST) {
2211         gelic_wl_send_iwap_event(wl, NULL);
2212         pr_info("%s: no scan list. association failed\n", __func__);
2213         goto scan_lock_out;
2214     }
2215
2216     /* find best matching bss */
2217     best_bss = gelic_wl_find_best_bss(wl);
2218     if (!best_bss) {
2219         gelic_wl_send_iwap_event(wl, NULL);
2220         pr_info("%s: no bss matched. association failed\n", __func__);
2221         goto scan_lock_out;
2222     }
2223
2224     /* ok, do association */
2225     ret = gelic_wl_associate_bss(wl, best_bss);
2226     if (ret)
2227         pr_info("%s: association failed %d\n", __func__, ret);
2228 scan_lock_out:
2229     mutex_unlock(&wl->scan_lock);
2230 out:
2231     mutex_unlock(&wl->assoc_stat_lock);
2232 }
2233 /*
2234  * Interrupt handler
2235  * Called from the ethernet interrupt handler
2236  * Processes wireless specific virtual interrupts only
2237  */
2238 void gelic_wl_interrupt(struct net_device *netdev, u64 status)
2239 {
2240     struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
2241
2242     if (status & GELIC_CARD_WLAN_COMMAND_COMPLETED) {
2243         pr_debug("%s:cmd complete\n", __func__);
2244         complete(&wl->cmd_done_intr);
2245     }
2246
2247     if (status & GELIC_CARD_WLAN_EVENT_RECEIVED) {
2248         pr_debug("%s:event received\n", __func__);
2249         queue_delayed_work(wl->event_queue, &wl->event_work, 0);
2250     }
2251 }
2252
2253 /*
2254  * driver helpers
2255  */
2256 static const iw_handler gelic_wl_wext_handler[] =
2257 {
2258     IW_HANDLER(SIOCGIWNAME, gelic_wl_get_name),
2259     IW_HANDLER(SIOCGIWRANGE, gelic_wl_get_range),
2260     IW_HANDLER(SIOCSIWSCAN, gelic_wl_set_scan),
2261     IW_HANDLER(SIOCGIWSCAN, gelic_wl_get_scan),
2262     IW_HANDLER(SIOCSIWAUTH, gelic_wl_set_auth),
2263     IW_HANDLER(SIOCGIWAUTH, gelic_wl_get_auth),
2264     IW_HANDLER(SIOCSIWESSID, gelic_wl_set_essid),
2265     IW_HANDLER(SIOCGIWESSID, gelic_wl_get_essid),
2266     IW_HANDLER(SIOCSIWENCODE, gelic_wl_set_encode),
2267     IW_HANDLER(SIOCGIWENCODE, gelic_wl_get_encode),
2268     IW_HANDLER(SIOCSIWAP, gelic_wl_set_ap),
2269     IW_HANDLER(SIOCGIWAP, gelic_wl_get_ap),
2270     IW_HANDLER(SIOCSIWENCODEEXT, gelic_wl_set_encodeext),
2271     IW_HANDLER(SIOCGIWENCODEEXT, gelic_wl_get_encodeext),
2272     IW_HANDLER(SIOCSIWMODE, gelic_wl_set_mode),
2273     IW_HANDLER(SIOCGIWMODE, gelic_wl_get_mode),
2274     IW_HANDLER(SIOCGIWNICKN, gelic_wl_get_nick),
2275 };
2276
2277 static const struct iw_handler_def gelic_wl_wext_handler_def = {
2278     .num_standard       = ARRAY_SIZE(gelic_wl_wext_handler),
2279     .standard       = gelic_wl_wext_handler,
2280     .get_wireless_stats = gelic_wl_get_wireless_stats,
2281 };
2282
2283 static struct net_device *gelic_wl_alloc(struct gelic_card *card)
2284 {
2285     struct net_device *netdev;
2286     struct gelic_port *port;
2287     struct gelic_wl_info *wl;
2288     unsigned int i;
2289
2290     pr_debug("%s:start\n", __func__);
2291     netdev = alloc_etherdev(sizeof(struct gelic_port) +
2292                 sizeof(struct gelic_wl_info));
2293     pr_debug("%s: netdev =%p card=%p\n", __func__, netdev, card);
2294     if (!netdev)
2295         return NULL;
2296
2297     strcpy(netdev->name, "wlan%d");
2298
2299     port = netdev_priv(netdev);
2300     port->netdev = netdev;
2301     port->card = card;
2302     port->type = GELIC_PORT_WIRELESS;
2303
2304     wl = port_wl(port);
2305     pr_debug("%s: wl=%p port=%p\n", __func__, wl, port);
2306
2307     /* allocate scan list */
2308     wl->networks = kcalloc(GELIC_WL_BSS_MAX_ENT,
2309                    sizeof(struct gelic_wl_scan_info),
2310                    GFP_KERNEL);
2311
2312     if (!wl->networks)
2313         goto fail_bss;
2314
2315     wl->eurus_cmd_queue = create_singlethread_workqueue("gelic_cmd");
2316     if (!wl->eurus_cmd_queue)
2317         goto fail_cmd_workqueue;
2318
2319     wl->event_queue = create_singlethread_workqueue("gelic_event");
2320     if (!wl->event_queue)
2321         goto fail_event_workqueue;
2322
2323     INIT_LIST_HEAD(&wl->network_free_list);
2324     INIT_LIST_HEAD(&wl->network_list);
2325     for (i = 0; i < GELIC_WL_BSS_MAX_ENT; i++)
2326         list_add_tail(&wl->networks[i].list,
2327                   &wl->network_free_list);
2328     init_completion(&wl->cmd_done_intr);
2329
2330     INIT_DELAYED_WORK(&wl->event_work, gelic_wl_event_worker);
2331     INIT_DELAYED_WORK(&wl->assoc_work, gelic_wl_assoc_worker);
2332     mutex_init(&wl->scan_lock);
2333     mutex_init(&wl->assoc_stat_lock);
2334
2335     init_completion(&wl->scan_done);
2336     /* for the case that no scan request is issued and stop() is called */
2337     complete(&wl->scan_done);
2338
2339     spin_lock_init(&wl->lock);
2340
2341     wl->scan_age = 5*HZ; /* FIXME */
2342
2343     /* buffer for receiving scanned list etc */
2344     BUILD_BUG_ON(PAGE_SIZE <
2345              sizeof(struct gelic_eurus_scan_info) *
2346              GELIC_EURUS_MAX_SCAN);
2347     pr_debug("%s:end\n", __func__);
2348     return netdev;
2349
2350 fail_event_workqueue:
2351     destroy_workqueue(wl->eurus_cmd_queue);
2352 fail_cmd_workqueue:
2353     kfree(wl->networks);
2354 fail_bss:
2355     free_netdev(netdev);
2356     pr_debug("%s:end error\n", __func__);
2357     return NULL;
2358
2359 }
2360
2361 static void gelic_wl_free(struct gelic_wl_info *wl)
2362 {
2363     struct gelic_wl_scan_info *scan_info;
2364     unsigned int i;
2365
2366     pr_debug("%s: <-\n", __func__);
2367
2368     pr_debug("%s: destroy queues\n", __func__);
2369     destroy_workqueue(wl->eurus_cmd_queue);
2370     destroy_workqueue(wl->event_queue);
2371
2372     scan_info = wl->networks;
2373     for (i = 0; i < GELIC_WL_BSS_MAX_ENT; i++, scan_info++)
2374         kfree(scan_info->hwinfo);
2375     kfree(wl->networks);
2376
2377     free_netdev(port_to_netdev(wl_port(wl)));
2378
2379     pr_debug("%s: ->\n", __func__);
2380 }
2381
2382 static int gelic_wl_try_associate(struct net_device *netdev)
2383 {
2384     struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
2385     int ret = -1;
2386     unsigned int i;
2387
2388     pr_debug("%s: <-\n", __func__);
2389
2390     /* check constraits for start association */
2391     /* for no access restriction AP */
2392     if (wl->group_cipher_method == GELIC_WL_CIPHER_NONE) {
2393         if (test_bit(GELIC_WL_STAT_CONFIGURED,
2394                  &wl->stat))
2395             goto do_associate;
2396         else {
2397             pr_debug("%s: no wep, not configured\n", __func__);
2398             return ret;
2399         }
2400     }
2401
2402     /* for WEP, one of four keys should be set */
2403     if (wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
2404         /* one of keys set */
2405         for (i = 0; i < GELIC_WEP_KEYS; i++) {
2406             if (test_bit(i, &wl->key_enabled))
2407                 goto do_associate;
2408         }
2409         pr_debug("%s: WEP, but no key specified\n", __func__);
2410         return ret;
2411     }
2412
2413     /* for WPA[2], psk should be set */
2414     if ((wl->group_cipher_method == GELIC_WL_CIPHER_TKIP) ||
2415         (wl->group_cipher_method == GELIC_WL_CIPHER_AES)) {
2416         if (test_bit(GELIC_WL_STAT_WPA_PSK_SET,
2417                  &wl->stat))
2418             goto do_associate;
2419         else {
2420             pr_debug("%s: AES/TKIP, but PSK not configured\n",
2421                  __func__);
2422             return ret;
2423         }
2424     }
2425
2426 do_associate:
2427     ret = schedule_delayed_work(&wl->assoc_work, 0);
2428     pr_debug("%s: start association work %d\n", __func__, ret);
2429     return ret;
2430 }
2431
2432 /*
2433  * netdev handlers
2434  */
2435 static int gelic_wl_open(struct net_device *netdev)
2436 {
2437     struct gelic_card *card = netdev_card(netdev);
2438
2439     pr_debug("%s:->%p\n", __func__, netdev);
2440
2441     gelic_card_up(card);
2442
2443     /* try to associate */
2444     gelic_wl_try_associate(netdev);
2445
2446     netif_start_queue(netdev);
2447
2448     pr_debug("%s:<-\n", __func__);
2449     return 0;
2450 }
2451
2452 /*
2453  * reset state machine
2454  */
2455 static int gelic_wl_reset_state(struct gelic_wl_info *wl)
2456 {
2457     struct gelic_wl_scan_info *target;
2458     struct gelic_wl_scan_info *tmp;
2459
2460     /* empty scan list */
2461     list_for_each_entry_safe(target, tmp, &wl->network_list, list) {
2462         list_move_tail(&target->list, &wl->network_free_list);
2463     }
2464     wl->scan_stat = GELIC_WL_SCAN_STAT_INIT;
2465
2466     /* clear configuration */
2467     wl->auth_method = GELIC_EURUS_AUTH_OPEN;
2468     wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
2469     wl->pairwise_cipher_method = GELIC_WL_CIPHER_NONE;
2470     wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
2471
2472     wl->key_enabled = 0;
2473     wl->current_key = 0;
2474
2475     wl->psk_type = GELIC_EURUS_WPA_PSK_PASSPHRASE;
2476     wl->psk_len = 0;
2477
2478     wl->essid_len = 0;
2479     memset(wl->essid, 0, sizeof(wl->essid));
2480     memset(wl->bssid, 0, sizeof(wl->bssid));
2481     memset(wl->active_bssid, 0, sizeof(wl->active_bssid));
2482
2483     wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
2484
2485     memset(&wl->iwstat, 0, sizeof(wl->iwstat));
2486     /* all status bit clear */
2487     wl->stat = 0;
2488     return 0;
2489 }
2490
2491 /*
2492  * Tell eurus to terminate association
2493  */
2494 static void gelic_wl_disconnect(struct net_device *netdev)
2495 {
2496     struct gelic_port *port = netdev_priv(netdev);
2497     struct gelic_wl_info *wl = port_wl(port);
2498     struct gelic_eurus_cmd *cmd;
2499
2500     /*
2501      * If scann process is running on chip,
2502      * further requests will be rejected
2503      */
2504     if (wl->scan_stat == GELIC_WL_SCAN_STAT_SCANNING)
2505         wait_for_completion_timeout(&wl->scan_done, HZ);
2506
2507     cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_DISASSOC, NULL, 0);
2508     kfree(cmd);
2509     gelic_wl_send_iwap_event(wl, NULL);
2510 };
2511
2512 static int gelic_wl_stop(struct net_device *netdev)
2513 {
2514     struct gelic_port *port = netdev_priv(netdev);
2515     struct gelic_wl_info *wl = port_wl(port);
2516     struct gelic_card *card = netdev_card(netdev);
2517
2518     pr_debug("%s:<-\n", __func__);
2519
2520     /*
2521      * Cancel pending association work.
2522      * event work can run after netdev down
2523      */
2524     cancel_delayed_work(&wl->assoc_work);
2525
2526     if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
2527         gelic_wl_disconnect(netdev);
2528
2529     /* reset our state machine */
2530     gelic_wl_reset_state(wl);
2531
2532     netif_stop_queue(netdev);
2533
2534     gelic_card_down(card);
2535
2536     pr_debug("%s:->\n", __func__);
2537     return 0;
2538 }
2539
2540 /* -- */
2541
2542 static const struct net_device_ops gelic_wl_netdevice_ops = {
2543     .ndo_open = gelic_wl_open,
2544     .ndo_stop = gelic_wl_stop,
2545     .ndo_start_xmit = gelic_net_xmit,
2546     .ndo_set_rx_mode = gelic_net_set_multi,
2547     .ndo_tx_timeout = gelic_net_tx_timeout,
2548     .ndo_set_mac_address = eth_mac_addr,
2549     .ndo_validate_addr = eth_validate_addr,
2550 #ifdef CONFIG_NET_POLL_CONTROLLER
2551     .ndo_poll_controller = gelic_net_poll_controller,
2552 #endif
2553 };
2554
2555 static const struct ethtool_ops gelic_wl_ethtool_ops = {
2556     .get_drvinfo    = gelic_net_get_drvinfo,
2557     .get_link   = gelic_wl_get_link,
2558 };
2559
2560 static void gelic_wl_setup_netdev_ops(struct net_device *netdev)
2561 {
2562     struct gelic_wl_info *wl;
2563     wl = port_wl(netdev_priv(netdev));
2564     BUG_ON(!wl);
2565     netdev->watchdog_timeo = GELIC_NET_WATCHDOG_TIMEOUT;
2566
2567     netdev->ethtool_ops = &gelic_wl_ethtool_ops;
2568     netdev->netdev_ops = &gelic_wl_netdevice_ops;
2569     netdev->wireless_data = &wl->wireless_data;
2570     netdev->wireless_handlers = &gelic_wl_wext_handler_def;
2571 }
2572
2573 /*
2574  * driver probe/remove
2575  */
2576 int gelic_wl_driver_probe(struct gelic_card *card)
2577 {
2578     int ret;
2579     struct net_device *netdev;
2580
2581     pr_debug("%s:start\n", __func__);
2582
2583     if (ps3_compare_firmware_version(1, 6, 0) < 0)
2584         return 0;
2585     if (!card->vlan[GELIC_PORT_WIRELESS].tx)
2586         return 0;
2587
2588     /* alloc netdevice for wireless */
2589     netdev = gelic_wl_alloc(card);
2590     if (!netdev)
2591         return -ENOMEM;
2592
2593     /* setup net_device structure */
2594     SET_NETDEV_DEV(netdev, &card->dev->core);
2595     gelic_wl_setup_netdev_ops(netdev);
2596
2597     /* setup some of net_device and register it */
2598     ret = gelic_net_setup_netdev(netdev, card);
2599     if (ret)
2600         goto fail_setup;
2601     card->netdev[GELIC_PORT_WIRELESS] = netdev;
2602
2603     /* add enable wireless interrupt */
2604     card->irq_mask |= GELIC_CARD_WLAN_EVENT_RECEIVED |
2605         GELIC_CARD_WLAN_COMMAND_COMPLETED;
2606     /* to allow wireless commands while both interfaces are down */
2607     gelic_card_set_irq_mask(card, GELIC_CARD_WLAN_EVENT_RECEIVED |
2608                 GELIC_CARD_WLAN_COMMAND_COMPLETED);
2609     pr_debug("%s:end\n", __func__);
2610     return 0;
2611
2612 fail_setup:
2613     gelic_wl_free(port_wl(netdev_port(netdev)));
2614
2615     return ret;
2616 }
2617
2618 int gelic_wl_driver_remove(struct gelic_card *card)
2619 {
2620     struct gelic_wl_info *wl;
2621     struct net_device *netdev;
2622
2623     pr_debug("%s:start\n", __func__);
2624
2625     if (ps3_compare_firmware_version(1, 6, 0) < 0)
2626         return 0;
2627     if (!card->vlan[GELIC_PORT_WIRELESS].tx)
2628         return 0;
2629
2630     netdev = card->netdev[GELIC_PORT_WIRELESS];
2631     wl = port_wl(netdev_priv(netdev));
2632
2633     /* if the interface was not up, but associated */
2634     if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
2635         gelic_wl_disconnect(netdev);
2636
2637     complete(&wl->cmd_done_intr);
2638
2639     /* cancel all work queue */
2640     cancel_delayed_work(&wl->assoc_work);
2641     cancel_delayed_work(&wl->event_work);
2642     flush_workqueue(wl->eurus_cmd_queue);
2643     flush_workqueue(wl->event_queue);
2644
2645     unregister_netdev(netdev);
2646
2647     /* disable wireless interrupt */
2648     pr_debug("%s: disable intr\n", __func__);
2649     card->irq_mask &= ~(GELIC_CARD_WLAN_EVENT_RECEIVED |
2650                 GELIC_CARD_WLAN_COMMAND_COMPLETED);
2651     /* free bss list, netdev*/
2652     gelic_wl_free(wl);
2653     pr_debug("%s:end\n", __func__);
2654     return 0;
2655 }