Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Marvell Wireless LAN device driver: CFG80211 |
| 3 | * |
| 4 | * Copyright (C) 2011, Marvell International Ltd. |
| 5 | * |
| 6 | * This software file (the "File") is distributed by Marvell International |
| 7 | * Ltd. under the terms of the GNU General Public License Version 2, June 1991 |
| 8 | * (the "License"). You may use, redistribute and/or modify this File in |
| 9 | * accordance with the terms and conditions of the License, a copy of which |
| 10 | * is available by writing to the Free Software Foundation, Inc., |
| 11 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the |
| 12 | * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt. |
| 13 | * |
| 14 | * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE |
| 15 | * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE |
| 16 | * ARE EXPRESSLY DISCLAIMED. The License provides additional details about |
| 17 | * this warranty disclaimer. |
| 18 | */ |
| 19 | |
| 20 | #include "cfg80211.h" |
| 21 | #include "main.h" |
| 22 | |
| 23 | /* |
| 24 | * This function maps the nl802.11 channel type into driver channel type. |
| 25 | * |
| 26 | * The mapping is as follows - |
| 27 | * NL80211_CHAN_NO_HT -> NO_SEC_CHANNEL |
| 28 | * NL80211_CHAN_HT20 -> NO_SEC_CHANNEL |
| 29 | * NL80211_CHAN_HT40PLUS -> SEC_CHANNEL_ABOVE |
| 30 | * NL80211_CHAN_HT40MINUS -> SEC_CHANNEL_BELOW |
| 31 | * Others -> NO_SEC_CHANNEL |
| 32 | */ |
| 33 | static int |
| 34 | mwifiex_cfg80211_channel_type_to_mwifiex_channels(enum nl80211_channel_type |
| 35 | channel_type) |
| 36 | { |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 37 | switch (channel_type) { |
| 38 | case NL80211_CHAN_NO_HT: |
| 39 | case NL80211_CHAN_HT20: |
Yogesh Ashok Powar | 636c459 | 2011-04-15 20:50:40 -0700 | [diff] [blame] | 40 | return NO_SEC_CHANNEL; |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 41 | case NL80211_CHAN_HT40PLUS: |
Yogesh Ashok Powar | 636c459 | 2011-04-15 20:50:40 -0700 | [diff] [blame] | 42 | return SEC_CHANNEL_ABOVE; |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 43 | case NL80211_CHAN_HT40MINUS: |
Yogesh Ashok Powar | 636c459 | 2011-04-15 20:50:40 -0700 | [diff] [blame] | 44 | return SEC_CHANNEL_BELOW; |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 45 | default: |
Yogesh Ashok Powar | 636c459 | 2011-04-15 20:50:40 -0700 | [diff] [blame] | 46 | return NO_SEC_CHANNEL; |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 47 | } |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 48 | } |
| 49 | |
| 50 | /* |
| 51 | * This function maps the driver channel type into nl802.11 channel type. |
| 52 | * |
| 53 | * The mapping is as follows - |
| 54 | * NO_SEC_CHANNEL -> NL80211_CHAN_HT20 |
| 55 | * SEC_CHANNEL_ABOVE -> NL80211_CHAN_HT40PLUS |
| 56 | * SEC_CHANNEL_BELOW -> NL80211_CHAN_HT40MINUS |
| 57 | * Others -> NL80211_CHAN_HT20 |
| 58 | */ |
| 59 | static enum nl80211_channel_type |
| 60 | mwifiex_channels_to_cfg80211_channel_type(int channel_type) |
| 61 | { |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 62 | switch (channel_type) { |
| 63 | case NO_SEC_CHANNEL: |
Yogesh Ashok Powar | 636c459 | 2011-04-15 20:50:40 -0700 | [diff] [blame] | 64 | return NL80211_CHAN_HT20; |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 65 | case SEC_CHANNEL_ABOVE: |
Yogesh Ashok Powar | 636c459 | 2011-04-15 20:50:40 -0700 | [diff] [blame] | 66 | return NL80211_CHAN_HT40PLUS; |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 67 | case SEC_CHANNEL_BELOW: |
Yogesh Ashok Powar | 636c459 | 2011-04-15 20:50:40 -0700 | [diff] [blame] | 68 | return NL80211_CHAN_HT40MINUS; |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 69 | default: |
Yogesh Ashok Powar | 636c459 | 2011-04-15 20:50:40 -0700 | [diff] [blame] | 70 | return NL80211_CHAN_HT20; |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 71 | } |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 72 | } |
| 73 | |
| 74 | /* |
| 75 | * This function checks whether WEP is set. |
| 76 | */ |
| 77 | static int |
| 78 | mwifiex_is_alg_wep(u32 cipher) |
| 79 | { |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 80 | switch (cipher) { |
Yogesh Ashok Powar | 2be50b8 | 2011-04-01 18:36:47 -0700 | [diff] [blame] | 81 | case WLAN_CIPHER_SUITE_WEP40: |
| 82 | case WLAN_CIPHER_SUITE_WEP104: |
Yogesh Ashok Powar | 270e58e | 2011-05-03 20:11:46 -0700 | [diff] [blame] | 83 | return 1; |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 84 | default: |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 85 | break; |
| 86 | } |
Yogesh Ashok Powar | 270e58e | 2011-05-03 20:11:46 -0700 | [diff] [blame] | 87 | |
| 88 | return 0; |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 89 | } |
| 90 | |
| 91 | /* |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 92 | * This function retrieves the private structure from kernel wiphy structure. |
| 93 | */ |
| 94 | static void *mwifiex_cfg80211_get_priv(struct wiphy *wiphy) |
| 95 | { |
| 96 | return (void *) (*(unsigned long *) wiphy_priv(wiphy)); |
| 97 | } |
| 98 | |
| 99 | /* |
| 100 | * CFG802.11 operation handler to delete a network key. |
| 101 | */ |
| 102 | static int |
| 103 | mwifiex_cfg80211_del_key(struct wiphy *wiphy, struct net_device *netdev, |
| 104 | u8 key_index, bool pairwise, const u8 *mac_addr) |
| 105 | { |
| 106 | struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy); |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 107 | |
Yogesh Ashok Powar | 636c459 | 2011-04-15 20:50:40 -0700 | [diff] [blame] | 108 | if (mwifiex_set_encode(priv, NULL, 0, key_index, 1)) { |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 109 | wiphy_err(wiphy, "deleting the crypto keys\n"); |
| 110 | return -EFAULT; |
| 111 | } |
| 112 | |
| 113 | wiphy_dbg(wiphy, "info: crypto keys deleted\n"); |
| 114 | return 0; |
| 115 | } |
| 116 | |
| 117 | /* |
| 118 | * CFG802.11 operation handler to set Tx power. |
| 119 | */ |
| 120 | static int |
| 121 | mwifiex_cfg80211_set_tx_power(struct wiphy *wiphy, |
| 122 | enum nl80211_tx_power_setting type, |
| 123 | int dbm) |
| 124 | { |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 125 | struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy); |
Amitkumar Karwar | 600f5d9 | 2011-04-13 17:27:06 -0700 | [diff] [blame] | 126 | struct mwifiex_power_cfg power_cfg; |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 127 | |
Amitkumar Karwar | 600f5d9 | 2011-04-13 17:27:06 -0700 | [diff] [blame] | 128 | if (type == NL80211_TX_POWER_FIXED) { |
| 129 | power_cfg.is_power_auto = 0; |
| 130 | power_cfg.power_level = dbm; |
| 131 | } else { |
| 132 | power_cfg.is_power_auto = 1; |
| 133 | } |
| 134 | |
Yogesh Ashok Powar | 636c459 | 2011-04-15 20:50:40 -0700 | [diff] [blame] | 135 | return mwifiex_set_tx_power(priv, &power_cfg); |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 136 | } |
| 137 | |
| 138 | /* |
| 139 | * CFG802.11 operation handler to set Power Save option. |
| 140 | * |
| 141 | * The timeout value, if provided, is currently ignored. |
| 142 | */ |
| 143 | static int |
| 144 | mwifiex_cfg80211_set_power_mgmt(struct wiphy *wiphy, |
| 145 | struct net_device *dev, |
| 146 | bool enabled, int timeout) |
| 147 | { |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 148 | struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy); |
Amitkumar Karwar | 600f5d9 | 2011-04-13 17:27:06 -0700 | [diff] [blame] | 149 | u32 ps_mode; |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 150 | |
| 151 | if (timeout) |
| 152 | wiphy_dbg(wiphy, |
| 153 | "info: ignoring the timeout value" |
| 154 | " for IEEE power save\n"); |
| 155 | |
Amitkumar Karwar | 600f5d9 | 2011-04-13 17:27:06 -0700 | [diff] [blame] | 156 | ps_mode = enabled; |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 157 | |
Yogesh Ashok Powar | 636c459 | 2011-04-15 20:50:40 -0700 | [diff] [blame] | 158 | return mwifiex_drv_set_power(priv, &ps_mode); |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 159 | } |
| 160 | |
| 161 | /* |
| 162 | * CFG802.11 operation handler to set the default network key. |
| 163 | */ |
| 164 | static int |
| 165 | mwifiex_cfg80211_set_default_key(struct wiphy *wiphy, struct net_device *netdev, |
| 166 | u8 key_index, bool unicast, |
| 167 | bool multicast) |
| 168 | { |
| 169 | struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy); |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 170 | |
Amitkumar Karwar | 2d3d0a8 | 2011-04-01 18:36:46 -0700 | [diff] [blame] | 171 | /* Return if WEP key not configured */ |
| 172 | if (priv->sec_info.wep_status == MWIFIEX_802_11_WEP_DISABLED) |
| 173 | return 0; |
| 174 | |
Yogesh Ashok Powar | 636c459 | 2011-04-15 20:50:40 -0700 | [diff] [blame] | 175 | if (mwifiex_set_encode(priv, NULL, 0, key_index, 0)) { |
| 176 | wiphy_err(wiphy, "set default Tx key index\n"); |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 177 | return -EFAULT; |
Yogesh Ashok Powar | 636c459 | 2011-04-15 20:50:40 -0700 | [diff] [blame] | 178 | } |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 179 | |
| 180 | return 0; |
| 181 | } |
| 182 | |
| 183 | /* |
| 184 | * CFG802.11 operation handler to add a network key. |
| 185 | */ |
| 186 | static int |
| 187 | mwifiex_cfg80211_add_key(struct wiphy *wiphy, struct net_device *netdev, |
| 188 | u8 key_index, bool pairwise, const u8 *mac_addr, |
| 189 | struct key_params *params) |
| 190 | { |
| 191 | struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy); |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 192 | |
Yogesh Ashok Powar | 636c459 | 2011-04-15 20:50:40 -0700 | [diff] [blame] | 193 | if (mwifiex_set_encode(priv, params->key, params->key_len, |
| 194 | key_index, 0)) { |
| 195 | wiphy_err(wiphy, "crypto keys added\n"); |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 196 | return -EFAULT; |
Yogesh Ashok Powar | 636c459 | 2011-04-15 20:50:40 -0700 | [diff] [blame] | 197 | } |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 198 | |
| 199 | return 0; |
| 200 | } |
| 201 | |
| 202 | /* |
| 203 | * This function sends domain information to the firmware. |
| 204 | * |
| 205 | * The following information are passed to the firmware - |
| 206 | * - Country codes |
| 207 | * - Sub bands (first channel, number of channels, maximum Tx power) |
| 208 | */ |
| 209 | static int mwifiex_send_domain_info_cmd_fw(struct wiphy *wiphy) |
| 210 | { |
| 211 | u8 no_of_triplet = 0; |
| 212 | struct ieee80211_country_ie_triplet *t; |
| 213 | u8 no_of_parsed_chan = 0; |
| 214 | u8 first_chan = 0, next_chan = 0, max_pwr = 0; |
| 215 | u8 i, flag = 0; |
| 216 | enum ieee80211_band band; |
| 217 | struct ieee80211_supported_band *sband; |
| 218 | struct ieee80211_channel *ch; |
| 219 | struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy); |
| 220 | struct mwifiex_adapter *adapter = priv->adapter; |
| 221 | struct mwifiex_802_11d_domain_reg *domain_info = &adapter->domain_reg; |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 222 | |
| 223 | /* Set country code */ |
| 224 | domain_info->country_code[0] = priv->country_code[0]; |
| 225 | domain_info->country_code[1] = priv->country_code[1]; |
| 226 | domain_info->country_code[2] = ' '; |
| 227 | |
| 228 | band = mwifiex_band_to_radio_type(adapter->config_bands); |
| 229 | if (!wiphy->bands[band]) { |
| 230 | wiphy_err(wiphy, "11D: setting domain info in FW\n"); |
| 231 | return -1; |
| 232 | } |
| 233 | |
| 234 | sband = wiphy->bands[band]; |
| 235 | |
| 236 | for (i = 0; i < sband->n_channels ; i++) { |
| 237 | ch = &sband->channels[i]; |
| 238 | if (ch->flags & IEEE80211_CHAN_DISABLED) |
| 239 | continue; |
| 240 | |
| 241 | if (!flag) { |
| 242 | flag = 1; |
| 243 | first_chan = (u32) ch->hw_value; |
| 244 | next_chan = first_chan; |
| 245 | max_pwr = ch->max_power; |
| 246 | no_of_parsed_chan = 1; |
| 247 | continue; |
| 248 | } |
| 249 | |
| 250 | if (ch->hw_value == next_chan + 1 && |
| 251 | ch->max_power == max_pwr) { |
| 252 | next_chan++; |
| 253 | no_of_parsed_chan++; |
| 254 | } else { |
| 255 | t = &domain_info->triplet[no_of_triplet]; |
| 256 | t->chans.first_channel = first_chan; |
| 257 | t->chans.num_channels = no_of_parsed_chan; |
| 258 | t->chans.max_power = max_pwr; |
| 259 | no_of_triplet++; |
| 260 | first_chan = (u32) ch->hw_value; |
| 261 | next_chan = first_chan; |
| 262 | max_pwr = ch->max_power; |
| 263 | no_of_parsed_chan = 1; |
| 264 | } |
| 265 | } |
| 266 | |
| 267 | if (flag) { |
| 268 | t = &domain_info->triplet[no_of_triplet]; |
| 269 | t->chans.first_channel = first_chan; |
| 270 | t->chans.num_channels = no_of_parsed_chan; |
| 271 | t->chans.max_power = max_pwr; |
| 272 | no_of_triplet++; |
| 273 | } |
| 274 | |
| 275 | domain_info->no_of_triplet = no_of_triplet; |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 276 | |
Yogesh Ashok Powar | 636c459 | 2011-04-15 20:50:40 -0700 | [diff] [blame] | 277 | if (mwifiex_send_cmd_async(priv, HostCmd_CMD_802_11D_DOMAIN_INFO, |
| 278 | HostCmd_ACT_GEN_SET, 0, NULL)) { |
| 279 | wiphy_err(wiphy, "11D: setting domain info in FW\n"); |
| 280 | return -1; |
| 281 | } |
| 282 | |
| 283 | return 0; |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 284 | } |
| 285 | |
| 286 | /* |
| 287 | * CFG802.11 regulatory domain callback function. |
| 288 | * |
| 289 | * This function is called when the regulatory domain is changed due to the |
| 290 | * following reasons - |
| 291 | * - Set by driver |
| 292 | * - Set by system core |
| 293 | * - Set by user |
| 294 | * - Set bt Country IE |
| 295 | */ |
| 296 | static int mwifiex_reg_notifier(struct wiphy *wiphy, |
| 297 | struct regulatory_request *request) |
| 298 | { |
| 299 | struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy); |
| 300 | |
| 301 | wiphy_dbg(wiphy, "info: cfg80211 regulatory domain callback for domain" |
| 302 | " %c%c\n", request->alpha2[0], request->alpha2[1]); |
| 303 | |
| 304 | memcpy(priv->country_code, request->alpha2, sizeof(request->alpha2)); |
| 305 | |
| 306 | switch (request->initiator) { |
| 307 | case NL80211_REGDOM_SET_BY_DRIVER: |
| 308 | case NL80211_REGDOM_SET_BY_CORE: |
| 309 | case NL80211_REGDOM_SET_BY_USER: |
| 310 | break; |
| 311 | /* Todo: apply driver specific changes in channel flags based |
| 312 | on the request initiator if necessary. */ |
| 313 | case NL80211_REGDOM_SET_BY_COUNTRY_IE: |
| 314 | break; |
| 315 | } |
| 316 | mwifiex_send_domain_info_cmd_fw(wiphy); |
| 317 | |
| 318 | return 0; |
| 319 | } |
| 320 | |
| 321 | /* |
| 322 | * This function sets the RF channel. |
| 323 | * |
| 324 | * This function creates multiple IOCTL requests, populates them accordingly |
| 325 | * and issues them to set the band/channel and frequency. |
| 326 | */ |
| 327 | static int |
| 328 | mwifiex_set_rf_channel(struct mwifiex_private *priv, |
| 329 | struct ieee80211_channel *chan, |
| 330 | enum nl80211_channel_type channel_type) |
| 331 | { |
| 332 | struct mwifiex_chan_freq_power cfp; |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 333 | struct mwifiex_ds_band_cfg band_cfg; |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 334 | u32 config_bands = 0; |
| 335 | struct wiphy *wiphy = priv->wdev->wiphy; |
| 336 | |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 337 | if (chan) { |
| 338 | memset(&band_cfg, 0, sizeof(band_cfg)); |
| 339 | /* Set appropriate bands */ |
| 340 | if (chan->band == IEEE80211_BAND_2GHZ) |
| 341 | config_bands = BAND_B | BAND_G | BAND_GN; |
| 342 | else |
| 343 | config_bands = BAND_AN | BAND_A; |
Bing Zhao | eecd825 | 2011-03-28 17:55:41 -0700 | [diff] [blame] | 344 | if (priv->bss_mode == NL80211_IFTYPE_STATION |
| 345 | || priv->bss_mode == NL80211_IFTYPE_UNSPECIFIED) { |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 346 | band_cfg.config_bands = config_bands; |
Bing Zhao | eecd825 | 2011-03-28 17:55:41 -0700 | [diff] [blame] | 347 | } else if (priv->bss_mode == NL80211_IFTYPE_ADHOC) { |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 348 | band_cfg.config_bands = config_bands; |
| 349 | band_cfg.adhoc_start_band = config_bands; |
| 350 | } |
Yogesh Ashok Powar | 636c459 | 2011-04-15 20:50:40 -0700 | [diff] [blame] | 351 | |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 352 | band_cfg.sec_chan_offset = |
| 353 | mwifiex_cfg80211_channel_type_to_mwifiex_channels |
| 354 | (channel_type); |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 355 | |
Yogesh Ashok Powar | 636c459 | 2011-04-15 20:50:40 -0700 | [diff] [blame] | 356 | if (mwifiex_set_radio_band_cfg(priv, &band_cfg)) |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 357 | return -EFAULT; |
Yogesh Ashok Powar | 636c459 | 2011-04-15 20:50:40 -0700 | [diff] [blame] | 358 | |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 359 | mwifiex_send_domain_info_cmd_fw(wiphy); |
| 360 | } |
| 361 | |
| 362 | wiphy_dbg(wiphy, "info: setting band %d, channel offset %d and " |
Bing Zhao | eecd825 | 2011-03-28 17:55:41 -0700 | [diff] [blame] | 363 | "mode %d\n", config_bands, band_cfg.sec_chan_offset, |
| 364 | priv->bss_mode); |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 365 | if (!chan) |
Yogesh Ashok Powar | 636c459 | 2011-04-15 20:50:40 -0700 | [diff] [blame] | 366 | return 0; |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 367 | |
| 368 | memset(&cfp, 0, sizeof(cfp)); |
| 369 | cfp.freq = chan->center_freq; |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 370 | cfp.channel = ieee80211_frequency_to_channel(chan->center_freq); |
| 371 | |
Yogesh Ashok Powar | 636c459 | 2011-04-15 20:50:40 -0700 | [diff] [blame] | 372 | if (mwifiex_bss_set_channel(priv, &cfp)) |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 373 | return -EFAULT; |
| 374 | |
Yogesh Ashok Powar | 636c459 | 2011-04-15 20:50:40 -0700 | [diff] [blame] | 375 | return mwifiex_drv_change_adhoc_chan(priv, cfp.channel); |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 376 | } |
| 377 | |
| 378 | /* |
| 379 | * CFG802.11 operation handler to set channel. |
| 380 | * |
| 381 | * This function can only be used when station is not connected. |
| 382 | */ |
| 383 | static int |
| 384 | mwifiex_cfg80211_set_channel(struct wiphy *wiphy, struct net_device *dev, |
| 385 | struct ieee80211_channel *chan, |
| 386 | enum nl80211_channel_type channel_type) |
| 387 | { |
| 388 | struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy); |
| 389 | |
| 390 | if (priv->media_connected) { |
| 391 | wiphy_err(wiphy, "This setting is valid only when station " |
| 392 | "is not connected\n"); |
| 393 | return -EINVAL; |
| 394 | } |
| 395 | |
| 396 | return mwifiex_set_rf_channel(priv, chan, channel_type); |
| 397 | } |
| 398 | |
| 399 | /* |
| 400 | * This function sets the fragmentation threshold. |
| 401 | * |
Amitkumar Karwar | 600f5d9 | 2011-04-13 17:27:06 -0700 | [diff] [blame] | 402 | * The fragmentation threshold value must lie between MWIFIEX_FRAG_MIN_VALUE |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 403 | * and MWIFIEX_FRAG_MAX_VALUE. |
| 404 | */ |
| 405 | static int |
| 406 | mwifiex_set_frag(struct mwifiex_private *priv, u32 frag_thr) |
| 407 | { |
Yogesh Ashok Powar | 270e58e | 2011-05-03 20:11:46 -0700 | [diff] [blame] | 408 | int ret; |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 409 | |
| 410 | if (frag_thr < MWIFIEX_FRAG_MIN_VALUE |
| 411 | || frag_thr > MWIFIEX_FRAG_MAX_VALUE) |
| 412 | return -EINVAL; |
| 413 | |
Amitkumar Karwar | 600f5d9 | 2011-04-13 17:27:06 -0700 | [diff] [blame] | 414 | /* Send request to firmware */ |
| 415 | ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB, |
| 416 | HostCmd_ACT_GEN_SET, FRAG_THRESH_I, |
| 417 | &frag_thr); |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 418 | |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 419 | return ret; |
| 420 | } |
| 421 | |
| 422 | /* |
| 423 | * This function sets the RTS threshold. |
Amitkumar Karwar | 600f5d9 | 2011-04-13 17:27:06 -0700 | [diff] [blame] | 424 | |
| 425 | * The rts value must lie between MWIFIEX_RTS_MIN_VALUE |
| 426 | * and MWIFIEX_RTS_MAX_VALUE. |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 427 | */ |
| 428 | static int |
| 429 | mwifiex_set_rts(struct mwifiex_private *priv, u32 rts_thr) |
| 430 | { |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 431 | if (rts_thr < MWIFIEX_RTS_MIN_VALUE || rts_thr > MWIFIEX_RTS_MAX_VALUE) |
| 432 | rts_thr = MWIFIEX_RTS_MAX_VALUE; |
| 433 | |
Yogesh Ashok Powar | 636c459 | 2011-04-15 20:50:40 -0700 | [diff] [blame] | 434 | return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB, |
Amitkumar Karwar | 600f5d9 | 2011-04-13 17:27:06 -0700 | [diff] [blame] | 435 | HostCmd_ACT_GEN_SET, RTS_THRESH_I, |
| 436 | &rts_thr); |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 437 | } |
| 438 | |
| 439 | /* |
| 440 | * CFG802.11 operation handler to set wiphy parameters. |
| 441 | * |
| 442 | * This function can be used to set the RTS threshold and the |
| 443 | * Fragmentation threshold of the driver. |
| 444 | */ |
| 445 | static int |
| 446 | mwifiex_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) |
| 447 | { |
| 448 | struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy); |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 449 | int ret = 0; |
| 450 | |
Yogesh Ashok Powar | 636c459 | 2011-04-15 20:50:40 -0700 | [diff] [blame] | 451 | if (changed & WIPHY_PARAM_RTS_THRESHOLD) { |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 452 | ret = mwifiex_set_rts(priv, wiphy->rts_threshold); |
Yogesh Ashok Powar | 636c459 | 2011-04-15 20:50:40 -0700 | [diff] [blame] | 453 | if (ret) |
| 454 | return ret; |
| 455 | } |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 456 | |
| 457 | if (changed & WIPHY_PARAM_FRAG_THRESHOLD) |
| 458 | ret = mwifiex_set_frag(priv, wiphy->frag_threshold); |
| 459 | |
| 460 | return ret; |
| 461 | } |
| 462 | |
| 463 | /* |
| 464 | * CFG802.11 operation handler to change interface type. |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 465 | */ |
| 466 | static int |
| 467 | mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy, |
| 468 | struct net_device *dev, |
| 469 | enum nl80211_iftype type, u32 *flags, |
| 470 | struct vif_params *params) |
| 471 | { |
Yogesh Ashok Powar | 270e58e | 2011-05-03 20:11:46 -0700 | [diff] [blame] | 472 | int ret; |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 473 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); |
Bing Zhao | eecd825 | 2011-03-28 17:55:41 -0700 | [diff] [blame] | 474 | |
| 475 | if (priv->bss_mode == type) { |
| 476 | wiphy_warn(wiphy, "already set to required type\n"); |
| 477 | return 0; |
| 478 | } |
| 479 | |
| 480 | priv->bss_mode = type; |
| 481 | |
| 482 | switch (type) { |
| 483 | case NL80211_IFTYPE_ADHOC: |
| 484 | dev->ieee80211_ptr->iftype = NL80211_IFTYPE_ADHOC; |
| 485 | wiphy_dbg(wiphy, "info: setting interface type to adhoc\n"); |
| 486 | break; |
| 487 | case NL80211_IFTYPE_STATION: |
| 488 | dev->ieee80211_ptr->iftype = NL80211_IFTYPE_STATION; |
| 489 | wiphy_dbg(wiphy, "info: setting interface type to managed\n"); |
| 490 | break; |
| 491 | case NL80211_IFTYPE_UNSPECIFIED: |
| 492 | dev->ieee80211_ptr->iftype = NL80211_IFTYPE_STATION; |
| 493 | wiphy_dbg(wiphy, "info: setting interface type to auto\n"); |
| 494 | return 0; |
| 495 | default: |
| 496 | wiphy_err(wiphy, "unknown interface type: %d\n", type); |
| 497 | return -EINVAL; |
| 498 | } |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 499 | |
Amitkumar Karwar | 600f5d9 | 2011-04-13 17:27:06 -0700 | [diff] [blame] | 500 | mwifiex_deauthenticate(priv, NULL); |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 501 | |
Marc Yang | f986b6d | 2011-03-28 17:55:42 -0700 | [diff] [blame] | 502 | priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM; |
Bing Zhao | eecd825 | 2011-03-28 17:55:41 -0700 | [diff] [blame] | 503 | |
Amitkumar Karwar | 600f5d9 | 2011-04-13 17:27:06 -0700 | [diff] [blame] | 504 | ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_SET_BSS_MODE, |
| 505 | HostCmd_ACT_GEN_SET, 0, NULL); |
Bing Zhao | eecd825 | 2011-03-28 17:55:41 -0700 | [diff] [blame] | 506 | |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 507 | return ret; |
| 508 | } |
| 509 | |
| 510 | /* |
| 511 | * This function dumps the station information on a buffer. |
| 512 | * |
| 513 | * The following information are shown - |
| 514 | * - Total bytes transmitted |
| 515 | * - Total bytes received |
| 516 | * - Total packets transmitted |
| 517 | * - Total packets received |
| 518 | * - Signal quality level |
| 519 | * - Transmission rate |
| 520 | */ |
| 521 | static int |
| 522 | mwifiex_dump_station_info(struct mwifiex_private *priv, |
| 523 | struct station_info *sinfo) |
| 524 | { |
| 525 | struct mwifiex_ds_get_signal signal; |
| 526 | struct mwifiex_rate_cfg rate; |
| 527 | int ret = 0; |
| 528 | |
| 529 | sinfo->filled = STATION_INFO_RX_BYTES | STATION_INFO_TX_BYTES | |
| 530 | STATION_INFO_RX_PACKETS | |
| 531 | STATION_INFO_TX_PACKETS |
| 532 | | STATION_INFO_SIGNAL | STATION_INFO_TX_BITRATE; |
| 533 | |
| 534 | /* Get signal information from the firmware */ |
| 535 | memset(&signal, 0, sizeof(struct mwifiex_ds_get_signal)); |
Amitkumar Karwar | 600f5d9 | 2011-04-13 17:27:06 -0700 | [diff] [blame] | 536 | if (mwifiex_get_signal_info(priv, &signal)) { |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 537 | dev_err(priv->adapter->dev, "getting signal information\n"); |
| 538 | ret = -EFAULT; |
| 539 | } |
| 540 | |
| 541 | if (mwifiex_drv_get_data_rate(priv, &rate)) { |
| 542 | dev_err(priv->adapter->dev, "getting data rate\n"); |
| 543 | ret = -EFAULT; |
| 544 | } |
| 545 | |
| 546 | sinfo->rx_bytes = priv->stats.rx_bytes; |
| 547 | sinfo->tx_bytes = priv->stats.tx_bytes; |
| 548 | sinfo->rx_packets = priv->stats.rx_packets; |
| 549 | sinfo->tx_packets = priv->stats.tx_packets; |
| 550 | sinfo->signal = priv->w_stats.qual.level; |
| 551 | sinfo->txrate.legacy = rate.rate; |
| 552 | |
| 553 | return ret; |
| 554 | } |
| 555 | |
| 556 | /* |
| 557 | * CFG802.11 operation handler to get station information. |
| 558 | * |
| 559 | * This function only works in connected mode, and dumps the |
| 560 | * requested station information, if available. |
| 561 | */ |
| 562 | static int |
| 563 | mwifiex_cfg80211_get_station(struct wiphy *wiphy, struct net_device *dev, |
| 564 | u8 *mac, struct station_info *sinfo) |
| 565 | { |
| 566 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 567 | |
| 568 | mwifiex_dump_station_info(priv, sinfo); |
| 569 | |
| 570 | if (!priv->media_connected) |
| 571 | return -ENOENT; |
| 572 | if (memcmp(mac, priv->cfg_bssid, ETH_ALEN)) |
| 573 | return -ENOENT; |
| 574 | |
Yogesh Ashok Powar | 636c459 | 2011-04-15 20:50:40 -0700 | [diff] [blame] | 575 | return mwifiex_dump_station_info(priv, sinfo); |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 576 | } |
| 577 | |
| 578 | /* Supported rates to be advertised to the cfg80211 */ |
| 579 | |
| 580 | static struct ieee80211_rate mwifiex_rates[] = { |
| 581 | {.bitrate = 10, .hw_value = 2, }, |
| 582 | {.bitrate = 20, .hw_value = 4, }, |
| 583 | {.bitrate = 55, .hw_value = 11, }, |
| 584 | {.bitrate = 110, .hw_value = 22, }, |
| 585 | {.bitrate = 220, .hw_value = 44, }, |
| 586 | {.bitrate = 60, .hw_value = 12, }, |
| 587 | {.bitrate = 90, .hw_value = 18, }, |
| 588 | {.bitrate = 120, .hw_value = 24, }, |
| 589 | {.bitrate = 180, .hw_value = 36, }, |
| 590 | {.bitrate = 240, .hw_value = 48, }, |
| 591 | {.bitrate = 360, .hw_value = 72, }, |
| 592 | {.bitrate = 480, .hw_value = 96, }, |
| 593 | {.bitrate = 540, .hw_value = 108, }, |
| 594 | {.bitrate = 720, .hw_value = 144, }, |
| 595 | }; |
| 596 | |
| 597 | /* Channel definitions to be advertised to cfg80211 */ |
| 598 | |
| 599 | static struct ieee80211_channel mwifiex_channels_2ghz[] = { |
| 600 | {.center_freq = 2412, .hw_value = 1, }, |
| 601 | {.center_freq = 2417, .hw_value = 2, }, |
| 602 | {.center_freq = 2422, .hw_value = 3, }, |
| 603 | {.center_freq = 2427, .hw_value = 4, }, |
| 604 | {.center_freq = 2432, .hw_value = 5, }, |
| 605 | {.center_freq = 2437, .hw_value = 6, }, |
| 606 | {.center_freq = 2442, .hw_value = 7, }, |
| 607 | {.center_freq = 2447, .hw_value = 8, }, |
| 608 | {.center_freq = 2452, .hw_value = 9, }, |
| 609 | {.center_freq = 2457, .hw_value = 10, }, |
| 610 | {.center_freq = 2462, .hw_value = 11, }, |
| 611 | {.center_freq = 2467, .hw_value = 12, }, |
| 612 | {.center_freq = 2472, .hw_value = 13, }, |
| 613 | {.center_freq = 2484, .hw_value = 14, }, |
| 614 | }; |
| 615 | |
| 616 | static struct ieee80211_supported_band mwifiex_band_2ghz = { |
| 617 | .channels = mwifiex_channels_2ghz, |
| 618 | .n_channels = ARRAY_SIZE(mwifiex_channels_2ghz), |
| 619 | .bitrates = mwifiex_rates, |
| 620 | .n_bitrates = 14, |
| 621 | }; |
| 622 | |
| 623 | static struct ieee80211_channel mwifiex_channels_5ghz[] = { |
| 624 | {.center_freq = 5040, .hw_value = 8, }, |
| 625 | {.center_freq = 5060, .hw_value = 12, }, |
| 626 | {.center_freq = 5080, .hw_value = 16, }, |
| 627 | {.center_freq = 5170, .hw_value = 34, }, |
| 628 | {.center_freq = 5190, .hw_value = 38, }, |
| 629 | {.center_freq = 5210, .hw_value = 42, }, |
| 630 | {.center_freq = 5230, .hw_value = 46, }, |
| 631 | {.center_freq = 5180, .hw_value = 36, }, |
| 632 | {.center_freq = 5200, .hw_value = 40, }, |
| 633 | {.center_freq = 5220, .hw_value = 44, }, |
| 634 | {.center_freq = 5240, .hw_value = 48, }, |
| 635 | {.center_freq = 5260, .hw_value = 52, }, |
| 636 | {.center_freq = 5280, .hw_value = 56, }, |
| 637 | {.center_freq = 5300, .hw_value = 60, }, |
| 638 | {.center_freq = 5320, .hw_value = 64, }, |
| 639 | {.center_freq = 5500, .hw_value = 100, }, |
| 640 | {.center_freq = 5520, .hw_value = 104, }, |
| 641 | {.center_freq = 5540, .hw_value = 108, }, |
| 642 | {.center_freq = 5560, .hw_value = 112, }, |
| 643 | {.center_freq = 5580, .hw_value = 116, }, |
| 644 | {.center_freq = 5600, .hw_value = 120, }, |
| 645 | {.center_freq = 5620, .hw_value = 124, }, |
| 646 | {.center_freq = 5640, .hw_value = 128, }, |
| 647 | {.center_freq = 5660, .hw_value = 132, }, |
| 648 | {.center_freq = 5680, .hw_value = 136, }, |
| 649 | {.center_freq = 5700, .hw_value = 140, }, |
| 650 | {.center_freq = 5745, .hw_value = 149, }, |
| 651 | {.center_freq = 5765, .hw_value = 153, }, |
| 652 | {.center_freq = 5785, .hw_value = 157, }, |
| 653 | {.center_freq = 5805, .hw_value = 161, }, |
| 654 | {.center_freq = 5825, .hw_value = 165, }, |
| 655 | }; |
| 656 | |
| 657 | static struct ieee80211_supported_band mwifiex_band_5ghz = { |
| 658 | .channels = mwifiex_channels_5ghz, |
| 659 | .n_channels = ARRAY_SIZE(mwifiex_channels_5ghz), |
| 660 | .bitrates = mwifiex_rates - 4, |
| 661 | .n_bitrates = ARRAY_SIZE(mwifiex_rates) + 4, |
| 662 | }; |
| 663 | |
| 664 | |
| 665 | /* Supported crypto cipher suits to be advertised to cfg80211 */ |
| 666 | |
| 667 | static const u32 mwifiex_cipher_suites[] = { |
| 668 | WLAN_CIPHER_SUITE_WEP40, |
| 669 | WLAN_CIPHER_SUITE_WEP104, |
| 670 | WLAN_CIPHER_SUITE_TKIP, |
| 671 | WLAN_CIPHER_SUITE_CCMP, |
| 672 | }; |
| 673 | |
| 674 | /* |
| 675 | * CFG802.11 operation handler for disconnection request. |
| 676 | * |
| 677 | * This function does not work when there is already a disconnection |
| 678 | * procedure going on. |
| 679 | */ |
| 680 | static int |
| 681 | mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev, |
| 682 | u16 reason_code) |
| 683 | { |
| 684 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); |
| 685 | |
| 686 | if (priv->disconnect) |
| 687 | return -EBUSY; |
| 688 | |
| 689 | priv->disconnect = 1; |
Amitkumar Karwar | 600f5d9 | 2011-04-13 17:27:06 -0700 | [diff] [blame] | 690 | if (mwifiex_deauthenticate(priv, NULL)) |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 691 | return -EFAULT; |
| 692 | |
| 693 | wiphy_dbg(wiphy, "info: successfully disconnected from %pM:" |
| 694 | " reason code %d\n", priv->cfg_bssid, reason_code); |
| 695 | |
| 696 | queue_work(priv->workqueue, &priv->cfg_workqueue); |
| 697 | |
| 698 | return 0; |
| 699 | } |
| 700 | |
| 701 | /* |
| 702 | * This function informs the CFG802.11 subsystem of a new IBSS. |
| 703 | * |
| 704 | * The following information are sent to the CFG802.11 subsystem |
| 705 | * to register the new IBSS. If we do not register the new IBSS, |
| 706 | * a kernel panic will result. |
| 707 | * - SSID |
| 708 | * - SSID length |
| 709 | * - BSSID |
| 710 | * - Channel |
| 711 | */ |
| 712 | static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv) |
| 713 | { |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 714 | struct ieee80211_channel *chan; |
| 715 | struct mwifiex_bss_info bss_info; |
Yogesh Ashok Powar | 270e58e | 2011-05-03 20:11:46 -0700 | [diff] [blame] | 716 | int ie_len; |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 717 | u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)]; |
| 718 | |
Yogesh Ashok Powar | 636c459 | 2011-04-15 20:50:40 -0700 | [diff] [blame] | 719 | if (mwifiex_get_bss_info(priv, &bss_info)) |
| 720 | return -1; |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 721 | |
| 722 | ie_buf[0] = WLAN_EID_SSID; |
| 723 | ie_buf[1] = bss_info.ssid.ssid_len; |
| 724 | |
| 725 | memcpy(&ie_buf[sizeof(struct ieee_types_header)], |
| 726 | &bss_info.ssid.ssid, |
| 727 | bss_info.ssid.ssid_len); |
| 728 | ie_len = ie_buf[1] + sizeof(struct ieee_types_header); |
| 729 | |
| 730 | chan = __ieee80211_get_channel(priv->wdev->wiphy, |
| 731 | ieee80211_channel_to_frequency(bss_info.bss_chan, |
| 732 | priv->curr_bss_params.band)); |
| 733 | |
| 734 | cfg80211_inform_bss(priv->wdev->wiphy, chan, |
| 735 | bss_info.bssid, 0, WLAN_CAPABILITY_IBSS, |
| 736 | 0, ie_buf, ie_len, 0, GFP_KERNEL); |
| 737 | memcpy(priv->cfg_bssid, bss_info.bssid, ETH_ALEN); |
| 738 | |
Yogesh Ashok Powar | 636c459 | 2011-04-15 20:50:40 -0700 | [diff] [blame] | 739 | return 0; |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 740 | } |
| 741 | |
| 742 | /* |
| 743 | * This function informs the CFG802.11 subsystem of a new BSS connection. |
| 744 | * |
| 745 | * The following information are sent to the CFG802.11 subsystem |
| 746 | * to register the new BSS connection. If we do not register the new BSS, |
| 747 | * a kernel panic will result. |
| 748 | * - MAC address |
| 749 | * - Capabilities |
| 750 | * - Beacon period |
| 751 | * - RSSI value |
| 752 | * - Channel |
| 753 | * - Supported rates IE |
| 754 | * - Extended capabilities IE |
| 755 | * - DS parameter set IE |
| 756 | * - HT Capability IE |
| 757 | * - Vendor Specific IE (221) |
| 758 | * - WPA IE |
| 759 | * - RSN IE |
| 760 | */ |
| 761 | static int mwifiex_inform_bss_from_scan_result(struct mwifiex_private *priv, |
| 762 | struct mwifiex_802_11_ssid *ssid) |
| 763 | { |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 764 | struct mwifiex_bssdescriptor *scan_table; |
| 765 | int i, j; |
| 766 | struct ieee80211_channel *chan; |
Yogesh Ashok Powar | 636c459 | 2011-04-15 20:50:40 -0700 | [diff] [blame] | 767 | u8 *ie, *ie_buf; |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 768 | u32 ie_len; |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 769 | u8 *beacon; |
| 770 | int beacon_size; |
| 771 | u8 element_id, element_len; |
| 772 | |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 773 | #define MAX_IE_BUF 2048 |
| 774 | ie_buf = kzalloc(MAX_IE_BUF, GFP_KERNEL); |
| 775 | if (!ie_buf) { |
| 776 | dev_err(priv->adapter->dev, "%s: failed to alloc ie_buf\n", |
| 777 | __func__); |
| 778 | return -ENOMEM; |
| 779 | } |
| 780 | |
Bing Zhao | a8c4856 | 2011-05-10 20:47:36 -0700 | [diff] [blame^] | 781 | scan_table = priv->adapter->scan_table; |
| 782 | for (i = 0; i < priv->adapter->num_in_scan_table; i++) { |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 783 | if (ssid) { |
| 784 | /* Inform specific BSS only */ |
| 785 | if (memcmp(ssid->ssid, scan_table[i].ssid.ssid, |
| 786 | ssid->ssid_len)) |
| 787 | continue; |
| 788 | } |
| 789 | memset(ie_buf, 0, MAX_IE_BUF); |
| 790 | ie_buf[0] = WLAN_EID_SSID; |
| 791 | ie_buf[1] = scan_table[i].ssid.ssid_len; |
| 792 | memcpy(&ie_buf[sizeof(struct ieee_types_header)], |
| 793 | scan_table[i].ssid.ssid, ie_buf[1]); |
| 794 | |
| 795 | ie = ie_buf + ie_buf[1] + sizeof(struct ieee_types_header); |
| 796 | ie_len = ie_buf[1] + sizeof(struct ieee_types_header); |
| 797 | |
| 798 | ie[0] = WLAN_EID_SUPP_RATES; |
| 799 | |
| 800 | for (j = 0; j < sizeof(scan_table[i].supported_rates); j++) { |
| 801 | if (!scan_table[i].supported_rates[j]) |
| 802 | break; |
| 803 | else |
| 804 | ie[j + sizeof(struct ieee_types_header)] = |
| 805 | scan_table[i].supported_rates[j]; |
| 806 | } |
| 807 | |
| 808 | ie[1] = j; |
| 809 | ie_len += ie[1] + sizeof(struct ieee_types_header); |
| 810 | |
| 811 | beacon = scan_table[i].beacon_buf; |
| 812 | beacon_size = scan_table[i].beacon_buf_size; |
| 813 | |
| 814 | /* Skip time stamp, beacon interval and capability */ |
| 815 | |
| 816 | if (beacon) { |
| 817 | beacon += sizeof(scan_table[i].beacon_period) |
| 818 | + sizeof(scan_table[i].time_stamp) + |
| 819 | +sizeof(scan_table[i].cap_info_bitmap); |
| 820 | |
| 821 | beacon_size -= sizeof(scan_table[i].beacon_period) |
| 822 | + sizeof(scan_table[i].time_stamp) |
| 823 | + sizeof(scan_table[i].cap_info_bitmap); |
| 824 | } |
| 825 | |
| 826 | while (beacon_size >= sizeof(struct ieee_types_header)) { |
| 827 | ie = ie_buf + ie_len; |
| 828 | element_id = *beacon; |
| 829 | element_len = *(beacon + 1); |
| 830 | if (beacon_size < (int) element_len + |
| 831 | sizeof(struct ieee_types_header)) { |
| 832 | dev_err(priv->adapter->dev, "%s: in processing" |
| 833 | " IE, bytes left < IE length\n", |
| 834 | __func__); |
| 835 | break; |
| 836 | } |
| 837 | switch (element_id) { |
| 838 | case WLAN_EID_EXT_CAPABILITY: |
| 839 | case WLAN_EID_DS_PARAMS: |
| 840 | case WLAN_EID_HT_CAPABILITY: |
| 841 | case WLAN_EID_VENDOR_SPECIFIC: |
| 842 | case WLAN_EID_RSN: |
| 843 | case WLAN_EID_BSS_AC_ACCESS_DELAY: |
| 844 | ie[0] = element_id; |
| 845 | ie[1] = element_len; |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 846 | memcpy(&ie[sizeof(struct ieee_types_header)], |
Yogesh Ashok Powar | 636c459 | 2011-04-15 20:50:40 -0700 | [diff] [blame] | 847 | (u8 *) beacon |
| 848 | + sizeof(struct ieee_types_header), |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 849 | element_len); |
| 850 | ie_len += ie[1] + |
| 851 | sizeof(struct ieee_types_header); |
| 852 | break; |
| 853 | default: |
| 854 | break; |
| 855 | } |
| 856 | beacon += element_len + |
| 857 | sizeof(struct ieee_types_header); |
| 858 | beacon_size -= element_len + |
| 859 | sizeof(struct ieee_types_header); |
| 860 | } |
| 861 | chan = ieee80211_get_channel(priv->wdev->wiphy, |
| 862 | scan_table[i].freq); |
| 863 | cfg80211_inform_bss(priv->wdev->wiphy, chan, |
| 864 | scan_table[i].mac_address, |
Yogesh Ashok Powar | 636c459 | 2011-04-15 20:50:40 -0700 | [diff] [blame] | 865 | 0, scan_table[i].cap_info_bitmap, |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 866 | scan_table[i].beacon_period, |
| 867 | ie_buf, ie_len, |
| 868 | scan_table[i].rssi, GFP_KERNEL); |
| 869 | } |
| 870 | |
| 871 | kfree(ie_buf); |
| 872 | return 0; |
| 873 | } |
| 874 | |
| 875 | /* |
| 876 | * This function connects with a BSS. |
| 877 | * |
| 878 | * This function handles both Infra and Ad-Hoc modes. It also performs |
| 879 | * validity checking on the provided parameters, disconnects from the |
| 880 | * current BSS (if any), sets up the association/scan parameters, |
| 881 | * including security settings, and performs specific SSID scan before |
| 882 | * trying to connect. |
| 883 | * |
| 884 | * For Infra mode, the function returns failure if the specified SSID |
| 885 | * is not found in scan table. However, for Ad-Hoc mode, it can create |
| 886 | * the IBSS if it does not exist. On successful completion in either case, |
| 887 | * the function notifies the CFG802.11 subsystem of the new BSS connection, |
| 888 | * otherwise the kernel will panic. |
| 889 | */ |
| 890 | static int |
| 891 | mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len, u8 *ssid, |
| 892 | u8 *bssid, int mode, struct ieee80211_channel *channel, |
| 893 | struct cfg80211_connect_params *sme, bool privacy) |
| 894 | { |
| 895 | struct mwifiex_802_11_ssid req_ssid; |
| 896 | struct mwifiex_ssid_bssid ssid_bssid; |
Yogesh Ashok Powar | 270e58e | 2011-05-03 20:11:46 -0700 | [diff] [blame] | 897 | int ret, auth_type = 0; |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 898 | |
| 899 | memset(&req_ssid, 0, sizeof(struct mwifiex_802_11_ssid)); |
| 900 | memset(&ssid_bssid, 0, sizeof(struct mwifiex_ssid_bssid)); |
| 901 | |
| 902 | req_ssid.ssid_len = ssid_len; |
| 903 | if (ssid_len > IEEE80211_MAX_SSID_LEN) { |
| 904 | dev_err(priv->adapter->dev, "invalid SSID - aborting\n"); |
| 905 | return -EINVAL; |
| 906 | } |
| 907 | |
| 908 | memcpy(req_ssid.ssid, ssid, ssid_len); |
| 909 | if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) { |
| 910 | dev_err(priv->adapter->dev, "invalid SSID - aborting\n"); |
| 911 | return -EINVAL; |
| 912 | } |
| 913 | |
| 914 | /* disconnect before try to associate */ |
Amitkumar Karwar | 600f5d9 | 2011-04-13 17:27:06 -0700 | [diff] [blame] | 915 | mwifiex_deauthenticate(priv, NULL); |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 916 | |
| 917 | if (channel) |
| 918 | ret = mwifiex_set_rf_channel(priv, channel, |
| 919 | mwifiex_channels_to_cfg80211_channel_type |
| 920 | (priv->adapter->chan_offset)); |
| 921 | |
| 922 | ret = mwifiex_set_encode(priv, NULL, 0, 0, 1); /* Disable keys */ |
| 923 | |
Bing Zhao | eecd825 | 2011-03-28 17:55:41 -0700 | [diff] [blame] | 924 | if (mode == NL80211_IFTYPE_ADHOC) { |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 925 | /* "privacy" is set only for ad-hoc mode */ |
| 926 | if (privacy) { |
| 927 | /* |
Yogesh Ashok Powar | 2be50b8 | 2011-04-01 18:36:47 -0700 | [diff] [blame] | 928 | * Keep WLAN_CIPHER_SUITE_WEP104 for now so that |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 929 | * the firmware can find a matching network from the |
| 930 | * scan. The cfg80211 does not give us the encryption |
| 931 | * mode at this stage so just setting it to WEP here. |
| 932 | */ |
Marc Yang | 203afec | 2011-03-24 20:49:39 -0700 | [diff] [blame] | 933 | priv->sec_info.encryption_mode = |
Yogesh Ashok Powar | 2be50b8 | 2011-04-01 18:36:47 -0700 | [diff] [blame] | 934 | WLAN_CIPHER_SUITE_WEP104; |
Marc Yang | 203afec | 2011-03-24 20:49:39 -0700 | [diff] [blame] | 935 | priv->sec_info.authentication_mode = |
Marc Yang | f986b6d | 2011-03-28 17:55:42 -0700 | [diff] [blame] | 936 | NL80211_AUTHTYPE_OPEN_SYSTEM; |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 937 | } |
| 938 | |
| 939 | goto done; |
| 940 | } |
| 941 | |
| 942 | /* Now handle infra mode. "sme" is valid for infra mode only */ |
| 943 | if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC |
| 944 | || sme->auth_type == NL80211_AUTHTYPE_OPEN_SYSTEM) |
Marc Yang | f986b6d | 2011-03-28 17:55:42 -0700 | [diff] [blame] | 945 | auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM; |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 946 | else if (sme->auth_type == NL80211_AUTHTYPE_SHARED_KEY) |
Marc Yang | f986b6d | 2011-03-28 17:55:42 -0700 | [diff] [blame] | 947 | auth_type = NL80211_AUTHTYPE_SHARED_KEY; |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 948 | |
| 949 | if (sme->crypto.n_ciphers_pairwise) { |
Yogesh Ashok Powar | 2be50b8 | 2011-04-01 18:36:47 -0700 | [diff] [blame] | 950 | priv->sec_info.encryption_mode = |
| 951 | sme->crypto.ciphers_pairwise[0]; |
Marc Yang | 203afec | 2011-03-24 20:49:39 -0700 | [diff] [blame] | 952 | priv->sec_info.authentication_mode = auth_type; |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 953 | } |
| 954 | |
| 955 | if (sme->crypto.cipher_group) { |
Yogesh Ashok Powar | 2be50b8 | 2011-04-01 18:36:47 -0700 | [diff] [blame] | 956 | priv->sec_info.encryption_mode = sme->crypto.cipher_group; |
Marc Yang | 203afec | 2011-03-24 20:49:39 -0700 | [diff] [blame] | 957 | priv->sec_info.authentication_mode = auth_type; |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 958 | } |
| 959 | if (sme->ie) |
| 960 | ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len); |
| 961 | |
| 962 | if (sme->key) { |
Yogesh Ashok Powar | 636c459 | 2011-04-15 20:50:40 -0700 | [diff] [blame] | 963 | if (mwifiex_is_alg_wep(0) | mwifiex_is_alg_wep(0)) { |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 964 | dev_dbg(priv->adapter->dev, |
| 965 | "info: setting wep encryption" |
| 966 | " with key len %d\n", sme->key_len); |
| 967 | ret = mwifiex_set_encode(priv, sme->key, sme->key_len, |
| 968 | sme->key_idx, 0); |
| 969 | } |
| 970 | } |
| 971 | done: |
| 972 | /* Do specific SSID scanning */ |
Amitkumar Karwar | 600f5d9 | 2011-04-13 17:27:06 -0700 | [diff] [blame] | 973 | if (mwifiex_request_scan(priv, &req_ssid)) { |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 974 | dev_err(priv->adapter->dev, "scan error\n"); |
| 975 | return -EFAULT; |
| 976 | } |
| 977 | |
| 978 | |
| 979 | memcpy(&ssid_bssid.ssid, &req_ssid, sizeof(struct mwifiex_802_11_ssid)); |
| 980 | |
Bing Zhao | eecd825 | 2011-03-28 17:55:41 -0700 | [diff] [blame] | 981 | if (mode != NL80211_IFTYPE_ADHOC) { |
Amitkumar Karwar | 600f5d9 | 2011-04-13 17:27:06 -0700 | [diff] [blame] | 982 | if (mwifiex_find_best_bss(priv, &ssid_bssid)) |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 983 | return -EFAULT; |
| 984 | /* Inform the BSS information to kernel, otherwise |
| 985 | * kernel will give a panic after successful assoc */ |
| 986 | if (mwifiex_inform_bss_from_scan_result(priv, &req_ssid)) |
| 987 | return -EFAULT; |
| 988 | } |
| 989 | |
| 990 | dev_dbg(priv->adapter->dev, "info: trying to associate to %s and bssid %pM\n", |
| 991 | (char *) req_ssid.ssid, ssid_bssid.bssid); |
| 992 | |
| 993 | memcpy(&priv->cfg_bssid, ssid_bssid.bssid, 6); |
| 994 | |
| 995 | /* Connect to BSS by ESSID */ |
| 996 | memset(&ssid_bssid.bssid, 0, ETH_ALEN); |
| 997 | |
Amitkumar Karwar | 600f5d9 | 2011-04-13 17:27:06 -0700 | [diff] [blame] | 998 | if (!netif_queue_stopped(priv->netdev)) |
| 999 | netif_stop_queue(priv->netdev); |
| 1000 | |
| 1001 | if (mwifiex_bss_start(priv, &ssid_bssid)) |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 1002 | return -EFAULT; |
| 1003 | |
Bing Zhao | eecd825 | 2011-03-28 17:55:41 -0700 | [diff] [blame] | 1004 | if (mode == NL80211_IFTYPE_ADHOC) { |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 1005 | /* Inform the BSS information to kernel, otherwise |
| 1006 | * kernel will give a panic after successful assoc */ |
| 1007 | if (mwifiex_cfg80211_inform_ibss_bss(priv)) |
| 1008 | return -EFAULT; |
| 1009 | } |
| 1010 | |
| 1011 | return ret; |
| 1012 | } |
| 1013 | |
| 1014 | /* |
| 1015 | * CFG802.11 operation handler for association request. |
| 1016 | * |
| 1017 | * This function does not work when the current mode is set to Ad-Hoc, or |
| 1018 | * when there is already an association procedure going on. The given BSS |
| 1019 | * information is used to associate. |
| 1020 | */ |
| 1021 | static int |
| 1022 | mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev, |
| 1023 | struct cfg80211_connect_params *sme) |
| 1024 | { |
| 1025 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); |
| 1026 | int ret = 0; |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 1027 | |
| 1028 | if (priv->assoc_request) |
| 1029 | return -EBUSY; |
| 1030 | |
Bing Zhao | eecd825 | 2011-03-28 17:55:41 -0700 | [diff] [blame] | 1031 | if (priv->bss_mode == NL80211_IFTYPE_ADHOC) { |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 1032 | wiphy_err(wiphy, "received infra assoc request " |
| 1033 | "when station is in ibss mode\n"); |
| 1034 | goto done; |
| 1035 | } |
| 1036 | |
Amitkumar Karwar | 57f16b5 | 2011-05-03 20:11:45 -0700 | [diff] [blame] | 1037 | priv->assoc_request = -EINPROGRESS; |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 1038 | |
| 1039 | wiphy_dbg(wiphy, "info: Trying to associate to %s and bssid %pM\n", |
| 1040 | (char *) sme->ssid, sme->bssid); |
| 1041 | |
| 1042 | ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid, |
Bing Zhao | eecd825 | 2011-03-28 17:55:41 -0700 | [diff] [blame] | 1043 | priv->bss_mode, sme->channel, sme, 0); |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 1044 | |
Amitkumar Karwar | 57f16b5 | 2011-05-03 20:11:45 -0700 | [diff] [blame] | 1045 | priv->assoc_request = 1; |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 1046 | done: |
| 1047 | priv->assoc_result = ret; |
| 1048 | queue_work(priv->workqueue, &priv->cfg_workqueue); |
| 1049 | return ret; |
| 1050 | } |
| 1051 | |
| 1052 | /* |
| 1053 | * CFG802.11 operation handler to join an IBSS. |
| 1054 | * |
| 1055 | * This function does not work in any mode other than Ad-Hoc, or if |
| 1056 | * a join operation is already in progress. |
| 1057 | */ |
| 1058 | static int |
| 1059 | mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, |
| 1060 | struct cfg80211_ibss_params *params) |
| 1061 | { |
| 1062 | struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy); |
| 1063 | int ret = 0; |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 1064 | |
| 1065 | if (priv->ibss_join_request) |
| 1066 | return -EBUSY; |
| 1067 | |
Bing Zhao | eecd825 | 2011-03-28 17:55:41 -0700 | [diff] [blame] | 1068 | if (priv->bss_mode != NL80211_IFTYPE_ADHOC) { |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 1069 | wiphy_err(wiphy, "request to join ibss received " |
| 1070 | "when station is not in ibss mode\n"); |
| 1071 | goto done; |
| 1072 | } |
| 1073 | |
Amitkumar Karwar | 57f16b5 | 2011-05-03 20:11:45 -0700 | [diff] [blame] | 1074 | priv->ibss_join_request = -EINPROGRESS; |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 1075 | |
| 1076 | wiphy_dbg(wiphy, "info: trying to join to %s and bssid %pM\n", |
| 1077 | (char *) params->ssid, params->bssid); |
| 1078 | |
| 1079 | ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid, |
Bing Zhao | eecd825 | 2011-03-28 17:55:41 -0700 | [diff] [blame] | 1080 | params->bssid, priv->bss_mode, |
| 1081 | params->channel, NULL, params->privacy); |
Amitkumar Karwar | 57f16b5 | 2011-05-03 20:11:45 -0700 | [diff] [blame] | 1082 | |
| 1083 | priv->ibss_join_request = 1; |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 1084 | done: |
| 1085 | priv->ibss_join_result = ret; |
| 1086 | queue_work(priv->workqueue, &priv->cfg_workqueue); |
| 1087 | return ret; |
| 1088 | } |
| 1089 | |
| 1090 | /* |
| 1091 | * CFG802.11 operation handler to leave an IBSS. |
| 1092 | * |
| 1093 | * This function does not work if a leave operation is |
| 1094 | * already in progress. |
| 1095 | */ |
| 1096 | static int |
| 1097 | mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) |
| 1098 | { |
| 1099 | struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy); |
| 1100 | |
| 1101 | if (priv->disconnect) |
| 1102 | return -EBUSY; |
| 1103 | |
| 1104 | priv->disconnect = 1; |
| 1105 | |
| 1106 | wiphy_dbg(wiphy, "info: disconnecting from essid %pM\n", |
| 1107 | priv->cfg_bssid); |
Amitkumar Karwar | 600f5d9 | 2011-04-13 17:27:06 -0700 | [diff] [blame] | 1108 | if (mwifiex_deauthenticate(priv, NULL)) |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 1109 | return -EFAULT; |
| 1110 | |
| 1111 | queue_work(priv->workqueue, &priv->cfg_workqueue); |
| 1112 | |
| 1113 | return 0; |
| 1114 | } |
| 1115 | |
| 1116 | /* |
| 1117 | * CFG802.11 operation handler for scan request. |
| 1118 | * |
| 1119 | * This function issues a scan request to the firmware based upon |
| 1120 | * the user specified scan configuration. On successfull completion, |
| 1121 | * it also informs the results. |
| 1122 | */ |
| 1123 | static int |
| 1124 | mwifiex_cfg80211_scan(struct wiphy *wiphy, struct net_device *dev, |
| 1125 | struct cfg80211_scan_request *request) |
| 1126 | { |
| 1127 | struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); |
| 1128 | |
| 1129 | wiphy_dbg(wiphy, "info: received scan request on %s\n", dev->name); |
| 1130 | |
| 1131 | if (priv->scan_request && priv->scan_request != request) |
| 1132 | return -EBUSY; |
| 1133 | |
| 1134 | priv->scan_request = request; |
| 1135 | |
| 1136 | queue_work(priv->workqueue, &priv->cfg_workqueue); |
| 1137 | return 0; |
| 1138 | } |
| 1139 | |
| 1140 | /* |
| 1141 | * This function sets up the CFG802.11 specific HT capability fields |
| 1142 | * with default values. |
| 1143 | * |
| 1144 | * The following default values are set - |
| 1145 | * - HT Supported = True |
Amitkumar Karwar | a46b7b5 | 2011-04-27 19:13:12 -0700 | [diff] [blame] | 1146 | * - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K |
| 1147 | * - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE |
| 1148 | * - HT Capabilities supported by firmware |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 1149 | * - MCS information, Rx mask = 0xff |
| 1150 | * - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01) |
| 1151 | */ |
| 1152 | static void |
| 1153 | mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info, |
| 1154 | struct mwifiex_private *priv) |
| 1155 | { |
| 1156 | int rx_mcs_supp; |
| 1157 | struct ieee80211_mcs_info mcs_set; |
| 1158 | u8 *mcs = (u8 *)&mcs_set; |
| 1159 | struct mwifiex_adapter *adapter = priv->adapter; |
| 1160 | |
| 1161 | ht_info->ht_supported = true; |
Amitkumar Karwar | a46b7b5 | 2011-04-27 19:13:12 -0700 | [diff] [blame] | 1162 | ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K; |
| 1163 | ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE; |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 1164 | |
| 1165 | memset(&ht_info->mcs, 0, sizeof(ht_info->mcs)); |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 1166 | |
Amitkumar Karwar | a46b7b5 | 2011-04-27 19:13:12 -0700 | [diff] [blame] | 1167 | /* Fill HT capability information */ |
| 1168 | if (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap)) |
| 1169 | ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; |
| 1170 | else |
| 1171 | ht_info->cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40; |
| 1172 | |
| 1173 | if (ISSUPP_SHORTGI20(adapter->hw_dot_11n_dev_cap)) |
| 1174 | ht_info->cap |= IEEE80211_HT_CAP_SGI_20; |
| 1175 | else |
| 1176 | ht_info->cap &= ~IEEE80211_HT_CAP_SGI_20; |
| 1177 | |
| 1178 | if (ISSUPP_SHORTGI40(adapter->hw_dot_11n_dev_cap)) |
| 1179 | ht_info->cap |= IEEE80211_HT_CAP_SGI_40; |
| 1180 | else |
| 1181 | ht_info->cap &= ~IEEE80211_HT_CAP_SGI_40; |
| 1182 | |
| 1183 | if (ISSUPP_RXSTBC(adapter->hw_dot_11n_dev_cap)) |
| 1184 | ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT; |
| 1185 | else |
| 1186 | ht_info->cap &= ~(3 << IEEE80211_HT_CAP_RX_STBC_SHIFT); |
| 1187 | |
| 1188 | if (ISSUPP_TXSTBC(adapter->hw_dot_11n_dev_cap)) |
| 1189 | ht_info->cap |= IEEE80211_HT_CAP_TX_STBC; |
| 1190 | else |
| 1191 | ht_info->cap &= ~IEEE80211_HT_CAP_TX_STBC; |
| 1192 | |
| 1193 | ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU; |
| 1194 | ht_info->cap |= IEEE80211_HT_CAP_SM_PS; |
| 1195 | |
| 1196 | rx_mcs_supp = GET_RXMCSSUPP(adapter->hw_dev_mcs_support); |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 1197 | /* Set MCS for 1x1 */ |
| 1198 | memset(mcs, 0xff, rx_mcs_supp); |
| 1199 | /* Clear all the other values */ |
| 1200 | memset(&mcs[rx_mcs_supp], 0, |
| 1201 | sizeof(struct ieee80211_mcs_info) - rx_mcs_supp); |
Bing Zhao | eecd825 | 2011-03-28 17:55:41 -0700 | [diff] [blame] | 1202 | if (priv->bss_mode == NL80211_IFTYPE_STATION || |
Marc Yang | 6d2bd91 | 2011-03-25 19:47:02 -0700 | [diff] [blame] | 1203 | ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap)) |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 1204 | /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */ |
| 1205 | SETHT_MCS32(mcs_set.rx_mask); |
| 1206 | |
| 1207 | memcpy((u8 *) &ht_info->mcs, mcs, sizeof(struct ieee80211_mcs_info)); |
| 1208 | |
| 1209 | ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED; |
| 1210 | } |
| 1211 | |
| 1212 | /* station cfg80211 operations */ |
| 1213 | static struct cfg80211_ops mwifiex_cfg80211_ops = { |
| 1214 | .change_virtual_intf = mwifiex_cfg80211_change_virtual_intf, |
| 1215 | .scan = mwifiex_cfg80211_scan, |
| 1216 | .connect = mwifiex_cfg80211_connect, |
| 1217 | .disconnect = mwifiex_cfg80211_disconnect, |
| 1218 | .get_station = mwifiex_cfg80211_get_station, |
| 1219 | .set_wiphy_params = mwifiex_cfg80211_set_wiphy_params, |
| 1220 | .set_channel = mwifiex_cfg80211_set_channel, |
| 1221 | .join_ibss = mwifiex_cfg80211_join_ibss, |
| 1222 | .leave_ibss = mwifiex_cfg80211_leave_ibss, |
| 1223 | .add_key = mwifiex_cfg80211_add_key, |
| 1224 | .del_key = mwifiex_cfg80211_del_key, |
| 1225 | .set_default_key = mwifiex_cfg80211_set_default_key, |
| 1226 | .set_power_mgmt = mwifiex_cfg80211_set_power_mgmt, |
| 1227 | .set_tx_power = mwifiex_cfg80211_set_tx_power, |
| 1228 | }; |
| 1229 | |
| 1230 | /* |
| 1231 | * This function registers the device with CFG802.11 subsystem. |
| 1232 | * |
| 1233 | * The function creates the wireless device/wiphy, populates it with |
| 1234 | * default parameters and handler function pointers, and finally |
| 1235 | * registers the device. |
| 1236 | */ |
| 1237 | int mwifiex_register_cfg80211(struct net_device *dev, u8 *mac, |
| 1238 | struct mwifiex_private *priv) |
| 1239 | { |
Yogesh Ashok Powar | 270e58e | 2011-05-03 20:11:46 -0700 | [diff] [blame] | 1240 | int ret; |
| 1241 | void *wdev_priv; |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 1242 | struct wireless_dev *wdev; |
| 1243 | |
| 1244 | wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL); |
| 1245 | if (!wdev) { |
| 1246 | dev_err(priv->adapter->dev, "%s: allocating wireless device\n", |
| 1247 | __func__); |
| 1248 | return -ENOMEM; |
| 1249 | } |
| 1250 | wdev->wiphy = |
| 1251 | wiphy_new(&mwifiex_cfg80211_ops, |
| 1252 | sizeof(struct mwifiex_private *)); |
Christoph Fritz | b53575e | 2011-05-08 22:50:09 +0200 | [diff] [blame] | 1253 | if (!wdev->wiphy) { |
| 1254 | kfree(wdev); |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 1255 | return -ENOMEM; |
Christoph Fritz | b53575e | 2011-05-08 22:50:09 +0200 | [diff] [blame] | 1256 | } |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 1257 | wdev->iftype = NL80211_IFTYPE_STATION; |
| 1258 | wdev->wiphy->max_scan_ssids = 10; |
| 1259 | wdev->wiphy->interface_modes = |
| 1260 | BIT(NL80211_IFTYPE_STATION) | BIT(NL80211_IFTYPE_ADHOC); |
Amitkumar Karwar | adc8959 | 2011-04-27 19:13:11 -0700 | [diff] [blame] | 1261 | |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 1262 | wdev->wiphy->bands[IEEE80211_BAND_2GHZ] = &mwifiex_band_2ghz; |
Amitkumar Karwar | adc8959 | 2011-04-27 19:13:11 -0700 | [diff] [blame] | 1263 | mwifiex_setup_ht_caps( |
| 1264 | &wdev->wiphy->bands[IEEE80211_BAND_2GHZ]->ht_cap, priv); |
| 1265 | |
| 1266 | if (priv->adapter->config_bands & BAND_A) { |
| 1267 | wdev->wiphy->bands[IEEE80211_BAND_5GHZ] = &mwifiex_band_5ghz; |
| 1268 | mwifiex_setup_ht_caps( |
| 1269 | &wdev->wiphy->bands[IEEE80211_BAND_5GHZ]->ht_cap, priv); |
| 1270 | } else { |
| 1271 | wdev->wiphy->bands[IEEE80211_BAND_5GHZ] = NULL; |
| 1272 | } |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 1273 | |
| 1274 | /* Initialize cipher suits */ |
| 1275 | wdev->wiphy->cipher_suites = mwifiex_cipher_suites; |
| 1276 | wdev->wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites); |
| 1277 | |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 1278 | memcpy(wdev->wiphy->perm_addr, mac, 6); |
| 1279 | wdev->wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; |
| 1280 | |
| 1281 | /* We are using custom domains */ |
| 1282 | wdev->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY; |
| 1283 | |
| 1284 | wdev->wiphy->reg_notifier = mwifiex_reg_notifier; |
| 1285 | |
| 1286 | /* Set struct mwifiex_private pointer in wiphy_priv */ |
| 1287 | wdev_priv = wiphy_priv(wdev->wiphy); |
| 1288 | |
| 1289 | *(unsigned long *) wdev_priv = (unsigned long) priv; |
| 1290 | |
| 1291 | ret = wiphy_register(wdev->wiphy); |
| 1292 | if (ret < 0) { |
| 1293 | dev_err(priv->adapter->dev, "%s: registering cfg80211 device\n", |
| 1294 | __func__); |
| 1295 | wiphy_free(wdev->wiphy); |
Christoph Fritz | b53575e | 2011-05-08 22:50:09 +0200 | [diff] [blame] | 1296 | kfree(wdev); |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 1297 | return ret; |
| 1298 | } else { |
| 1299 | dev_dbg(priv->adapter->dev, |
| 1300 | "info: successfully registered wiphy device\n"); |
| 1301 | } |
| 1302 | |
| 1303 | dev_net_set(dev, wiphy_net(wdev->wiphy)); |
| 1304 | dev->ieee80211_ptr = wdev; |
| 1305 | memcpy(dev->dev_addr, wdev->wiphy->perm_addr, 6); |
| 1306 | memcpy(dev->perm_addr, wdev->wiphy->perm_addr, 6); |
| 1307 | SET_NETDEV_DEV(dev, wiphy_dev(wdev->wiphy)); |
| 1308 | priv->wdev = wdev; |
| 1309 | |
| 1310 | dev->flags |= IFF_BROADCAST | IFF_MULTICAST; |
| 1311 | dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT; |
| 1312 | dev->hard_header_len += MWIFIEX_MIN_DATA_HEADER_LEN; |
| 1313 | |
| 1314 | return ret; |
| 1315 | } |
| 1316 | |
| 1317 | /* |
| 1318 | * This function handles the result of different pending network operations. |
| 1319 | * |
| 1320 | * The following operations are handled and CFG802.11 subsystem is |
| 1321 | * notified accordingly - |
| 1322 | * - Scan request completion |
| 1323 | * - Association request completion |
| 1324 | * - IBSS join request completion |
| 1325 | * - Disconnect request completion |
| 1326 | */ |
| 1327 | void |
| 1328 | mwifiex_cfg80211_results(struct work_struct *work) |
| 1329 | { |
| 1330 | struct mwifiex_private *priv = |
| 1331 | container_of(work, struct mwifiex_private, cfg_workqueue); |
| 1332 | struct mwifiex_user_scan_cfg *scan_req; |
| 1333 | int ret = 0, i; |
| 1334 | struct ieee80211_channel *chan; |
| 1335 | |
| 1336 | if (priv->scan_request) { |
| 1337 | scan_req = kzalloc(sizeof(struct mwifiex_user_scan_cfg), |
| 1338 | GFP_KERNEL); |
| 1339 | if (!scan_req) { |
| 1340 | dev_err(priv->adapter->dev, "failed to alloc " |
| 1341 | "scan_req\n"); |
| 1342 | return; |
| 1343 | } |
| 1344 | for (i = 0; i < priv->scan_request->n_ssids; i++) { |
| 1345 | memcpy(scan_req->ssid_list[i].ssid, |
| 1346 | priv->scan_request->ssids[i].ssid, |
| 1347 | priv->scan_request->ssids[i].ssid_len); |
| 1348 | scan_req->ssid_list[i].max_len = |
| 1349 | priv->scan_request->ssids[i].ssid_len; |
| 1350 | } |
| 1351 | for (i = 0; i < priv->scan_request->n_channels; i++) { |
| 1352 | chan = priv->scan_request->channels[i]; |
| 1353 | scan_req->chan_list[i].chan_number = chan->hw_value; |
| 1354 | scan_req->chan_list[i].radio_type = chan->band; |
| 1355 | if (chan->flags & IEEE80211_CHAN_DISABLED) |
| 1356 | scan_req->chan_list[i].scan_type = |
| 1357 | MWIFIEX_SCAN_TYPE_PASSIVE; |
| 1358 | else |
| 1359 | scan_req->chan_list[i].scan_type = |
| 1360 | MWIFIEX_SCAN_TYPE_ACTIVE; |
| 1361 | scan_req->chan_list[i].scan_time = 0; |
| 1362 | } |
| 1363 | if (mwifiex_set_user_scan_ioctl(priv, scan_req)) { |
| 1364 | ret = -EFAULT; |
| 1365 | goto done; |
| 1366 | } |
| 1367 | if (mwifiex_inform_bss_from_scan_result(priv, NULL)) |
| 1368 | ret = -EFAULT; |
| 1369 | done: |
| 1370 | priv->scan_result_status = ret; |
| 1371 | dev_dbg(priv->adapter->dev, "info: %s: sending scan results\n", |
| 1372 | __func__); |
| 1373 | cfg80211_scan_done(priv->scan_request, |
| 1374 | (priv->scan_result_status < 0)); |
| 1375 | priv->scan_request = NULL; |
| 1376 | kfree(scan_req); |
| 1377 | } |
| 1378 | |
Amitkumar Karwar | 57f16b5 | 2011-05-03 20:11:45 -0700 | [diff] [blame] | 1379 | if (priv->assoc_request == 1) { |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 1380 | if (!priv->assoc_result) { |
| 1381 | cfg80211_connect_result(priv->netdev, priv->cfg_bssid, |
| 1382 | NULL, 0, NULL, 0, |
| 1383 | WLAN_STATUS_SUCCESS, |
| 1384 | GFP_KERNEL); |
| 1385 | dev_dbg(priv->adapter->dev, |
| 1386 | "info: associated to bssid %pM successfully\n", |
| 1387 | priv->cfg_bssid); |
| 1388 | } else { |
| 1389 | dev_dbg(priv->adapter->dev, |
| 1390 | "info: association to bssid %pM failed\n", |
| 1391 | priv->cfg_bssid); |
| 1392 | memset(priv->cfg_bssid, 0, ETH_ALEN); |
| 1393 | } |
| 1394 | priv->assoc_request = 0; |
| 1395 | priv->assoc_result = 0; |
| 1396 | } |
| 1397 | |
Amitkumar Karwar | 57f16b5 | 2011-05-03 20:11:45 -0700 | [diff] [blame] | 1398 | if (priv->ibss_join_request == 1) { |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 1399 | if (!priv->ibss_join_result) { |
| 1400 | cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid, |
| 1401 | GFP_KERNEL); |
| 1402 | dev_dbg(priv->adapter->dev, |
| 1403 | "info: joined/created adhoc network with bssid" |
| 1404 | " %pM successfully\n", priv->cfg_bssid); |
| 1405 | } else { |
| 1406 | dev_dbg(priv->adapter->dev, |
| 1407 | "info: failed creating/joining adhoc network\n"); |
| 1408 | } |
| 1409 | priv->ibss_join_request = 0; |
| 1410 | priv->ibss_join_result = 0; |
| 1411 | } |
| 1412 | |
| 1413 | if (priv->disconnect) { |
| 1414 | memset(priv->cfg_bssid, 0, ETH_ALEN); |
| 1415 | priv->disconnect = 0; |
| 1416 | } |
Bing Zhao | 5e6e3a9 | 2011-03-21 18:00:50 -0700 | [diff] [blame] | 1417 | } |