staging: brcm80211: Fixed ibss join/leave functionality in brcmfmac driver
authorSukesh Srikakula <sukeshs@broadcom.com>
Fri, 13 May 2011 09:59:44 +0000 (11:59 +0200)
committerGreg Kroah-Hartman <gregkh@suse.de>
Tue, 17 May 2011 19:12:35 +0000 (12:12 -0700)
IBSS functionality is broken in fullmac driver, which is fixed with this patch

Cc: devel@linuxdriverproject.org
Cc: linux-wireless@vger.kernel.org
Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Reviewed-by: Brett Rudley <brudley@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
drivers/staging/brcm80211/brcmfmac/wl_cfg80211.c

index 3587210..27baf56 100644 (file)
@@ -598,10 +598,10 @@ wl_cfg80211_change_iface(struct wiphy *wiphy, struct net_device *ndev,
        struct wl_priv *wl = wiphy_to_wl(wiphy);
        struct wireless_dev *wdev;
        s32 infra = 0;
-       s32 ap = 0;
        s32 err = 0;
 
        CHECK_SYS_UP();
+
        switch (type) {
        case NL80211_IFTYPE_MONITOR:
        case NL80211_IFTYPE_WDS:
@@ -610,32 +610,32 @@ wl_cfg80211_change_iface(struct wiphy *wiphy, struct net_device *ndev,
                return -EOPNOTSUPP;
        case NL80211_IFTYPE_ADHOC:
                wl->conf->mode = WL_MODE_IBSS;
+               infra = 0;
                break;
        case NL80211_IFTYPE_STATION:
                wl->conf->mode = WL_MODE_BSS;
                infra = 1;
                break;
        default:
-               return -EINVAL;
+               err = -EINVAL;
+               goto done;
        }
+
        infra = cpu_to_le32(infra);
-       ap = cpu_to_le32(ap);
-       wdev = ndev->ieee80211_ptr;
-       wdev->iftype = type;
-       WL_DBG("%s : ap (%d), infra (%d)\n", ndev->name, ap, infra);
        err = wl_dev_ioctl(ndev, WLC_SET_INFRA, &infra, sizeof(infra));
        if (unlikely(err)) {
                WL_ERR("WLC_SET_INFRA error (%d)\n", err);
-               return err;
-       }
-       err = wl_dev_ioctl(ndev, WLC_SET_AP, &ap, sizeof(ap));
-       if (unlikely(err)) {
-               WL_ERR("WLC_SET_AP error (%d)\n", err);
-               return err;
+               err = -EAGAIN;
+       } else {
+               wdev = ndev->ieee80211_ptr;
+               wdev->iftype = type;
        }
 
-       /* -EINPROGRESS: Call commit handler */
-       return -EINPROGRESS;
+       WL_INFO("IF Type = %s\n",
+               (wl->conf->mode == WL_MODE_IBSS) ? "Adhoc" : "Infra");
+
+done:
+       return err;
 }
 
 static void wl_iscan_prep(struct wl_scan_params *params, struct wlc_ssid *ssid)
@@ -983,68 +983,137 @@ wl_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
                      struct cfg80211_ibss_params *params)
 {
        struct wl_priv *wl = wiphy_to_wl(wiphy);
-       struct cfg80211_bss *bss;
-       struct ieee80211_channel *chan;
        struct wl_join_params join_params;
-       struct cfg80211_ssid ssid;
-       s32 scan_retry = 0;
+       size_t join_params_size = 0;
        s32 err = 0;
+       s32 wsec = 0;
+       s32 bcnprd;
 
        CHECK_SYS_UP();
-       if (params->bssid) {
-               WL_ERR("Invalid bssid\n");
+
+       if (params->ssid)
+               WL_DBG("SSID: %s\n", params->ssid);
+       else {
+               WL_DBG("SSID: NULL, Not supported\n");
                return -EOPNOTSUPP;
        }
-       bss = cfg80211_get_ibss(wiphy, NULL, params->ssid, params->ssid_len);
-       if (!bss) {
-               memcpy(ssid.ssid, params->ssid, params->ssid_len);
-               ssid.ssid_len = params->ssid_len;
-               do {
-                       if (unlikely
-                           (__wl_cfg80211_scan(wiphy, dev, NULL, &ssid) ==
-                            -EBUSY)) {
-                               wl_delay(150);
-                       } else {
-                               break;
-                       }
-               } while (++scan_retry < WL_SCAN_RETRY_MAX);
-               rtnl_unlock();  /* to allow scan_inform to paropagate
-                                        to cfg80211 plane */
-               schedule_timeout_interruptible(4 * HZ); /* wait 4 secons
-                                                till scan done.... */
-               rtnl_lock();
-               bss = cfg80211_get_ibss(wiphy, NULL,
-                                       params->ssid, params->ssid_len);
+
+       if (params->bssid)
+               WL_DBG("BSSID: %02X %02X %02X %02X %02X %02X\n",
+               params->bssid[0], params->bssid[1], params->bssid[2],
+               params->bssid[3], params->bssid[4], params->bssid[5]);
+       else
+               WL_DBG("No BSSID specified\n");
+
+       if (params->channel)
+               WL_DBG("channel: %d\n", params->channel->center_freq);
+       else
+               WL_DBG("no channel specified\n");
+
+       if (params->channel_fixed)
+               WL_DBG("fixed channel required\n");
+       else
+               WL_DBG("no fixed channel required\n");
+
+       if (params->ie && params->ie_len)
+               WL_DBG("ie len: %d\n", params->ie_len);
+       else
+               WL_DBG("no ie specified\n");
+
+       if (params->beacon_interval)
+               WL_DBG("beacon interval: %d\n", params->beacon_interval);
+       else
+               WL_DBG("no beacon interval specified\n");
+
+       if (params->basic_rates)
+               WL_DBG("basic rates: %08X\n", params->basic_rates);
+       else
+               WL_DBG("no basic rates specified\n");
+
+       if (params->privacy)
+               WL_DBG("privacy required\n");
+       else
+               WL_DBG("no privacy required\n");
+
+       /* Configure Privacy for starter */
+       if (params->privacy)
+               wsec |= WEP_ENABLED;
+
+       err = wl_dev_intvar_set(dev, "wsec", wsec);
+       if (unlikely(err)) {
+               WL_ERR("wsec failed (%d)\n", err);
+               goto done;
+       }
+
+       /* Configure Beacon Interval for starter */
+       if (params->beacon_interval)
+               bcnprd = cpu_to_le32(params->beacon_interval);
+       else
+               bcnprd = cpu_to_le32(100);
+
+       err = wl_dev_ioctl(dev, WLC_SET_BCNPRD, &bcnprd, sizeof(bcnprd));
+       if (unlikely(err)) {
+               WL_ERR("WLC_SET_BCNPRD failed (%d)\n", err);
+               goto done;
        }
-       if (bss) {
-               wl->ibss_starter = false;
-               WL_DBG("Found IBSS\n");
+
+       /* Configure required join parameter */
+       memset(&join_params, 0, sizeof(wl_join_params_t));
+
+       /* SSID */
+       join_params.ssid.SSID_len =
+                       (params->ssid_len > 32) ? 32 : params->ssid_len;
+       memcpy(join_params.ssid.SSID, params->ssid, join_params.ssid.SSID_len);
+       join_params.ssid.SSID_len = cpu_to_le32(join_params.ssid.SSID_len);
+       join_params_size = sizeof(join_params.ssid);
+       wl_update_prof(wl, NULL, &join_params.ssid, WL_PROF_SSID);
+
+       /* BSSID */
+       if (params->bssid) {
+               memcpy(join_params.params.bssid, params->bssid, ETH_ALEN);
+               join_params_size =
+                       sizeof(join_params.ssid) + WL_ASSOC_PARAMS_FIXED_SIZE;
        } else {
-               wl->ibss_starter = true;
+               memcpy(join_params.params.bssid, ether_bcast, ETH_ALEN);
        }
-       chan = params->channel;
-       if (chan)
-               wl->channel = ieee80211_frequency_to_channel(chan->center_freq);
-       /*
-        ** Join with specific BSSID and cached SSID
-        ** If SSID is zero join based on BSSID only
-        */
-       memset(&join_params, 0, sizeof(join_params));
-       memcpy((void *)join_params.ssid.SSID, (void *)params->ssid,
-              params->ssid_len);
-       join_params.ssid.SSID_len = cpu_to_le32(params->ssid_len);
-       if (params->bssid)
-               memcpy(&join_params.params.bssid, params->bssid,
-                      ETH_ALEN);
-       else
-               memset(&join_params.params.bssid, 0, ETH_ALEN);
+       wl_update_prof(wl, NULL, &join_params.params.bssid, WL_PROF_BSSID);
+
+       /* Channel */
+       if (params->channel) {
+               u32 target_channel;
+
+               wl->channel =
+                       ieee80211_frequency_to_channel(
+                               params->channel->center_freq);
+               if (params->channel_fixed) {
+                       /* adding chanspec */
+                       wl_ch_to_chanspec(wl->channel,
+                               &join_params, &join_params_size);
+               }
 
-       err = wl_dev_ioctl(dev, WLC_SET_SSID, &join_params,
-                       sizeof(join_params));
+               /* set channel for starter */
+               target_channel = cpu_to_le32(wl->channel);
+               err = wl_dev_ioctl(dev, WLC_SET_CHANNEL,
+                       &target_channel, sizeof(target_channel));
+               if (unlikely(err)) {
+                       WL_ERR("WLC_SET_CHANNEL failed (%d)\n", err);
+                       goto done;
+               }
+       } else
+               wl->channel = 0;
+
+       wl->ibss_starter = false;
+
+
+       err = wl_dev_ioctl(dev, WLC_SET_SSID, &join_params, join_params_size);
        if (unlikely(err)) {
-               WL_ERR("Error (%d)\n", err);
-               return err;
+               WL_ERR("WLC_SET_SSID failed (%d)\n", err);
+               goto done;
        }
+
+       set_bit(WL_STATUS_CONNECTING, &wl->status);
+
+done:
        return err;
 }
 
@@ -2367,6 +2436,76 @@ static s32 wl_inform_single_bss(struct wl_priv *wl, struct wl_bss_info *bi)
        return err;
 }
 
+static s32
+wl_inform_ibss(struct wl_priv *wl, struct net_device *dev, const u8 *bssid)
+{
+       struct wiphy *wiphy = wl_to_wiphy(wl);
+       struct ieee80211_channel *notify_channel;
+       struct wl_bss_info *bi = NULL;
+       struct ieee80211_supported_band *band;
+       u8 *buf = NULL;
+       s32 err = 0;
+       u16 channel;
+       u32 freq;
+       u64 notify_timestamp;
+       u16 notify_capability;
+       u16 notify_interval;
+       u8 *notify_ie;
+       size_t notify_ielen;
+       s32 notify_signal;
+
+       buf = kzalloc(WL_BSS_INFO_MAX, GFP_KERNEL);
+       if (buf == NULL) {
+               WL_ERR("kzalloc() failed\n");
+               err = -ENOMEM;
+               goto CleanUp;
+       }
+
+       *(u32 *)buf = cpu_to_le32(WL_BSS_INFO_MAX);
+
+       err = wl_dev_ioctl(dev, WLC_GET_BSS_INFO, buf, WL_BSS_INFO_MAX);
+       if (unlikely(err)) {
+               WL_ERR("WLC_GET_BSS_INFO failed: %d\n", err);
+               goto CleanUp;
+       }
+
+       bi = (wl_bss_info_t *)(buf + 4);
+
+       channel = bi->ctl_ch ? bi->ctl_ch :
+                               CHSPEC_CHANNEL(le16_to_cpu(bi->chanspec));
+
+       if (channel <= CH_MAX_2G_CHANNEL)
+               band = wiphy->bands[IEEE80211_BAND_2GHZ];
+       else
+               band = wiphy->bands[IEEE80211_BAND_5GHZ];
+
+       freq = ieee80211_channel_to_frequency(channel, band->band);
+       notify_channel = ieee80211_get_channel(wiphy, freq);
+
+       notify_timestamp = jiffies_to_msecs(jiffies)*1000; /* uSec */
+       notify_capability = le16_to_cpu(bi->capability);
+       notify_interval = le16_to_cpu(bi->beacon_period);
+       notify_ie = (u8 *)bi + le16_to_cpu(bi->ie_offset);
+       notify_ielen = le16_to_cpu(bi->ie_length);
+       notify_signal = (s16)le16_to_cpu(bi->RSSI) * 100;
+
+       WL_DBG("channel: %d(%d)\n", channel, freq);
+       WL_DBG("capability: %X\n", notify_capability);
+       WL_DBG("beacon interval: %d\n", notify_interval);
+       WL_DBG("signal: %d\n", notify_signal);
+       WL_DBG("notify_timestamp: %#018llx\n", notify_timestamp);
+
+       cfg80211_inform_bss(wiphy, notify_channel, bssid,
+               notify_timestamp, notify_capability, notify_interval,
+               notify_ie, notify_ielen, notify_signal, GFP_KERNEL);
+
+CleanUp:
+
+       kfree(buf);
+
+       return err;
+}
+
 static bool wl_is_linkup(struct wl_priv *wl, const wl_event_msg_t *e)
 {
        u32 event = be32_to_cpu(e->event_type);
@@ -2424,6 +2563,7 @@ wl_notify_connect_status(struct wl_priv *wl, struct net_device *ndev,
                if (wl_is_ibssmode(wl)) {
                        wl_update_prof(wl, NULL, (void *)e->addr,
                                WL_PROF_BSSID);
+                       wl_inform_ibss(wl, ndev, e->addr);
                        cfg80211_ibss_joined(ndev, e->addr, GFP_KERNEL);
                        clear_bit(WL_STATUS_CONNECTING, &wl->status);
                        set_bit(WL_STATUS_CONNECTED, &wl->status);
@@ -3405,7 +3545,6 @@ struct sdio_func *wl_cfg80211_get_sdio_func(void)
 static s32 wl_dongle_mode(struct net_device *ndev, s32 iftype)
 {
        s32 infra = 0;
-       s32 ap = 0;
        s32 err = 0;
 
        switch (iftype) {
@@ -3416,6 +3555,7 @@ static s32 wl_dongle_mode(struct net_device *ndev, s32 iftype)
                err = -EINVAL;
                return err;
        case NL80211_IFTYPE_ADHOC:
+               infra = 0;
                break;
        case NL80211_IFTYPE_STATION:
                infra = 1;
@@ -3426,20 +3566,13 @@ static s32 wl_dongle_mode(struct net_device *ndev, s32 iftype)
                return err;
        }
        infra = cpu_to_le32(infra);
-       ap = cpu_to_le32(ap);
-       WL_DBG("%s ap (%d), infra (%d)\n", ndev->name, ap, infra);
        err = wl_dev_ioctl(ndev, WLC_SET_INFRA, &infra, sizeof(infra));
        if (unlikely(err)) {
                WL_ERR("WLC_SET_INFRA error (%d)\n", err);
                return err;
        }
-       err = wl_dev_ioctl(ndev, WLC_SET_AP, &ap, sizeof(ap));
-       if (unlikely(err)) {
-               WL_ERR("WLC_SET_AP error (%d)\n", err);
-               return err;
-       }
 
-       return -EINPROGRESS;
+       return 0;
 }
 
 #ifndef EMBEDDED_PLATFORM