Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 1 | /****************************************************************************** |
| 2 | * |
Emmanuel Grumbach | 51368bf | 2013-12-30 13:15:54 +0200 | [diff] [blame] | 3 | * Copyright(c) 2003 - 2014 Intel Corporation. All rights reserved. |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 4 | * |
| 5 | * Portions of this file are derived from the ipw3945 project, as well |
| 6 | * as portions of the ieee80211 subsystem header files. |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify it |
| 9 | * under the terms of version 2 of the GNU General Public License as |
| 10 | * published by the Free Software Foundation. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, but WITHOUT |
| 13 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 14 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| 15 | * more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License along with |
| 18 | * this program; if not, write to the Free Software Foundation, Inc., |
| 19 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA |
| 20 | * |
| 21 | * The full GNU General Public License is included in this distribution in the |
| 22 | * file called LICENSE. |
| 23 | * |
| 24 | * Contact Information: |
| 25 | * Intel Linux Wireless <ilw@linux.intel.com> |
| 26 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
| 27 | * |
| 28 | *****************************************************************************/ |
| 29 | #include <linux/kernel.h> |
| 30 | #include <linux/module.h> |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 31 | #include <linux/slab.h> |
| 32 | #include <linux/dma-mapping.h> |
| 33 | #include <linux/delay.h> |
| 34 | #include <linux/sched.h> |
| 35 | #include <linux/skbuff.h> |
| 36 | #include <linux/netdevice.h> |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 37 | #include <linux/etherdevice.h> |
| 38 | #include <linux/if_arp.h> |
| 39 | |
Johannes Berg | 53e1116 | 2012-05-16 23:59:03 +0200 | [diff] [blame] | 40 | #include <net/ieee80211_radiotap.h> |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 41 | #include <net/mac80211.h> |
| 42 | |
| 43 | #include <asm/div64.h> |
| 44 | |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 45 | #include "iwl-io.h" |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 46 | #include "iwl-trans.h" |
Emmanuel Grumbach | d0f76d6 | 2012-02-09 16:08:15 +0200 | [diff] [blame] | 47 | #include "iwl-op-mode.h" |
Johannes Berg | 65de7e8 | 2012-04-17 07:36:30 -0700 | [diff] [blame] | 48 | #include "iwl-modparams.h" |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 49 | |
Johannes Berg | 1023fdc | 2012-05-15 12:16:34 +0200 | [diff] [blame] | 50 | #include "dev.h" |
| 51 | #include "calib.h" |
| 52 | #include "agn.h" |
| 53 | |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 54 | /***************************************************************************** |
| 55 | * |
| 56 | * mac80211 entry point functions |
| 57 | * |
| 58 | *****************************************************************************/ |
| 59 | |
| 60 | static const struct ieee80211_iface_limit iwlagn_sta_ap_limits[] = { |
| 61 | { |
| 62 | .max = 1, |
| 63 | .types = BIT(NL80211_IFTYPE_STATION), |
| 64 | }, |
| 65 | { |
| 66 | .max = 1, |
| 67 | .types = BIT(NL80211_IFTYPE_AP), |
| 68 | }, |
| 69 | }; |
| 70 | |
| 71 | static const struct ieee80211_iface_limit iwlagn_2sta_limits[] = { |
| 72 | { |
| 73 | .max = 2, |
| 74 | .types = BIT(NL80211_IFTYPE_STATION), |
| 75 | }, |
| 76 | }; |
| 77 | |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 78 | static const struct ieee80211_iface_combination |
| 79 | iwlagn_iface_combinations_dualmode[] = { |
| 80 | { .num_different_channels = 1, |
| 81 | .max_interfaces = 2, |
| 82 | .beacon_int_infra_match = true, |
| 83 | .limits = iwlagn_sta_ap_limits, |
| 84 | .n_limits = ARRAY_SIZE(iwlagn_sta_ap_limits), |
| 85 | }, |
| 86 | { .num_different_channels = 1, |
| 87 | .max_interfaces = 2, |
| 88 | .limits = iwlagn_2sta_limits, |
| 89 | .n_limits = ARRAY_SIZE(iwlagn_2sta_limits), |
| 90 | }, |
| 91 | }; |
| 92 | |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 93 | /* |
| 94 | * Not a mac80211 entry point function, but it fits in with all the |
| 95 | * other mac80211 functions grouped here. |
| 96 | */ |
| 97 | int iwlagn_mac_setup_register(struct iwl_priv *priv, |
Johannes Berg | 0692fe4 | 2012-03-06 13:30:37 -0800 | [diff] [blame] | 98 | const struct iwl_ucode_capabilities *capa) |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 99 | { |
| 100 | int ret; |
| 101 | struct ieee80211_hw *hw = priv->hw; |
| 102 | struct iwl_rxon_context *ctx; |
| 103 | |
| 104 | hw->rate_control_algorithm = "iwl-agn-rs"; |
| 105 | |
| 106 | /* Tell mac80211 our characteristics */ |
| 107 | hw->flags = IEEE80211_HW_SIGNAL_DBM | |
| 108 | IEEE80211_HW_AMPDU_AGGREGATION | |
Emmanuel Grumbach | c65dd14 | 2012-12-12 10:12:24 +0200 | [diff] [blame] | 109 | IEEE80211_HW_NEED_DTIM_BEFORE_ASSOC | |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 110 | IEEE80211_HW_SPECTRUM_MGMT | |
Johannes Berg | 1479177 | 2012-04-17 07:39:03 -0700 | [diff] [blame] | 111 | IEEE80211_HW_REPORTS_TX_ACK_STATUS | |
| 112 | IEEE80211_HW_QUEUE_CONTROL | |
| 113 | IEEE80211_HW_SUPPORTS_PS | |
| 114 | IEEE80211_HW_SUPPORTS_DYNAMIC_PS | |
Johannes Berg | f1e3e05 | 2013-02-06 23:57:57 +0100 | [diff] [blame] | 115 | IEEE80211_HW_WANT_MONITOR_VIF; |
Johannes Berg | 1479177 | 2012-04-17 07:39:03 -0700 | [diff] [blame] | 116 | |
| 117 | hw->offchannel_tx_hw_queue = IWL_AUX_QUEUE; |
Johannes Berg | 53e1116 | 2012-05-16 23:59:03 +0200 | [diff] [blame] | 118 | hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FMT; |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 119 | |
| 120 | /* |
| 121 | * Including the following line will crash some AP's. This |
| 122 | * workaround removes the stimulus which causes the crash until |
| 123 | * the AP software can be fixed. |
| 124 | hw->max_tx_aggregation_subframes = LINK_QUAL_AGG_FRAME_LIMIT_DEF; |
| 125 | */ |
| 126 | |
Eytan Lifshitz | b7998c8 | 2012-12-01 20:59:49 +0200 | [diff] [blame] | 127 | if (priv->nvm_data->sku_cap_11n_enable) |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 128 | hw->flags |= IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS | |
| 129 | IEEE80211_HW_SUPPORTS_STATIC_SMPS; |
| 130 | |
Johannes Berg | 686681b | 2012-11-15 11:35:57 +0100 | [diff] [blame] | 131 | /* |
| 132 | * Enable 11w if advertised by firmware and software crypto |
| 133 | * is not enabled (as the firmware will interpret some mgmt |
| 134 | * packets, so enabling it with software crypto isn't safe) |
| 135 | */ |
| 136 | if (priv->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_MFP && |
| 137 | !iwlwifi_mod_params.sw_crypto) |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 138 | hw->flags |= IEEE80211_HW_MFP_CAPABLE; |
| 139 | |
| 140 | hw->sta_data_size = sizeof(struct iwl_station_priv); |
| 141 | hw->vif_data_size = sizeof(struct iwl_vif_priv); |
| 142 | |
| 143 | for_each_context(priv, ctx) { |
| 144 | hw->wiphy->interface_modes |= ctx->interface_modes; |
| 145 | hw->wiphy->interface_modes |= ctx->exclusive_interface_modes; |
| 146 | } |
| 147 | |
| 148 | BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2); |
| 149 | |
Johannes Berg | da4f87f | 2013-07-01 13:48:56 +0200 | [diff] [blame] | 150 | if (hw->wiphy->interface_modes & BIT(NL80211_IFTYPE_AP)) { |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 151 | hw->wiphy->iface_combinations = |
| 152 | iwlagn_iface_combinations_dualmode; |
| 153 | hw->wiphy->n_iface_combinations = |
| 154 | ARRAY_SIZE(iwlagn_iface_combinations_dualmode); |
| 155 | } |
| 156 | |
Luis R. Rodriguez | a2f73b6 | 2013-11-11 22:15:29 +0100 | [diff] [blame] | 157 | hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN; |
| 158 | hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG | |
| 159 | REGULATORY_DISABLE_BEACON_HINTS; |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 160 | |
Johannes Berg | fcb6ff5 | 2012-06-04 13:43:11 +0200 | [diff] [blame] | 161 | #ifdef CONFIG_PM_SLEEP |
David Spinadel | 6dfa8d0 | 2012-03-10 13:00:14 -0800 | [diff] [blame] | 162 | if (priv->fw->img[IWL_UCODE_WOWLAN].sec[0].len && |
Johannes Berg | ddaf5a5 | 2013-01-08 11:25:44 +0100 | [diff] [blame] | 163 | priv->trans->ops->d3_suspend && |
| 164 | priv->trans->ops->d3_resume && |
Emmanuel Grumbach | 68e8dfd | 2012-04-18 07:28:17 -0700 | [diff] [blame] | 165 | device_can_wakeup(priv->trans->dev)) { |
Johannes Berg | 964dc9e | 2013-06-03 17:25:34 +0200 | [diff] [blame] | 166 | priv->wowlan_support.flags = WIPHY_WOWLAN_MAGIC_PKT | |
| 167 | WIPHY_WOWLAN_DISCONNECT | |
| 168 | WIPHY_WOWLAN_EAP_IDENTITY_REQ | |
| 169 | WIPHY_WOWLAN_RFKILL_RELEASE; |
Johannes Berg | 65de7e8 | 2012-04-17 07:36:30 -0700 | [diff] [blame] | 170 | if (!iwlwifi_mod_params.sw_crypto) |
Johannes Berg | 964dc9e | 2013-06-03 17:25:34 +0200 | [diff] [blame] | 171 | priv->wowlan_support.flags |= |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 172 | WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | |
| 173 | WIPHY_WOWLAN_GTK_REKEY_FAILURE; |
| 174 | |
Johannes Berg | 964dc9e | 2013-06-03 17:25:34 +0200 | [diff] [blame] | 175 | priv->wowlan_support.n_patterns = IWLAGN_WOWLAN_MAX_PATTERNS; |
| 176 | priv->wowlan_support.pattern_min_len = |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 177 | IWLAGN_WOWLAN_MIN_PATTERN_LEN; |
Johannes Berg | 964dc9e | 2013-06-03 17:25:34 +0200 | [diff] [blame] | 178 | priv->wowlan_support.pattern_max_len = |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 179 | IWLAGN_WOWLAN_MAX_PATTERN_LEN; |
Johannes Berg | 964dc9e | 2013-06-03 17:25:34 +0200 | [diff] [blame] | 180 | hw->wiphy->wowlan = &priv->wowlan_support; |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 181 | } |
Johannes Berg | fcb6ff5 | 2012-06-04 13:43:11 +0200 | [diff] [blame] | 182 | #endif |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 183 | |
Johannes Berg | 65de7e8 | 2012-04-17 07:36:30 -0700 | [diff] [blame] | 184 | if (iwlwifi_mod_params.power_save) |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 185 | hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; |
| 186 | else |
| 187 | hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; |
| 188 | |
| 189 | hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; |
David Spinadel | 4f9bfbb | 2012-05-11 10:53:16 +0200 | [diff] [blame] | 190 | /* we create the 802.11 header and a max-length SSID element */ |
| 191 | hw->wiphy->max_scan_ie_len = capa->max_probe_length - 24 - 34; |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 192 | |
Johannes Berg | 1479177 | 2012-04-17 07:39:03 -0700 | [diff] [blame] | 193 | /* |
| 194 | * We don't use all queues: 4 and 9 are unused and any |
| 195 | * aggregation queue gets mapped down to the AC queue. |
| 196 | */ |
| 197 | hw->queues = IWLAGN_FIRST_AMPDU_QUEUE; |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 198 | |
| 199 | hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL; |
| 200 | |
Eytan Lifshitz | b7998c8 | 2012-12-01 20:59:49 +0200 | [diff] [blame] | 201 | if (priv->nvm_data->bands[IEEE80211_BAND_2GHZ].n_channels) |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 202 | priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = |
Eytan Lifshitz | b7998c8 | 2012-12-01 20:59:49 +0200 | [diff] [blame] | 203 | &priv->nvm_data->bands[IEEE80211_BAND_2GHZ]; |
| 204 | if (priv->nvm_data->bands[IEEE80211_BAND_5GHZ].n_channels) |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 205 | priv->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = |
Eytan Lifshitz | b7998c8 | 2012-12-01 20:59:49 +0200 | [diff] [blame] | 206 | &priv->nvm_data->bands[IEEE80211_BAND_5GHZ]; |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 207 | |
Emmanuel Grumbach | 68e8dfd | 2012-04-18 07:28:17 -0700 | [diff] [blame] | 208 | hw->wiphy->hw_version = priv->trans->hw_id; |
Wey-Yi Guy | 0ba958e | 2011-12-10 11:33:52 -0800 | [diff] [blame] | 209 | |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 210 | iwl_leds_init(priv); |
| 211 | |
| 212 | ret = ieee80211_register_hw(priv->hw); |
| 213 | if (ret) { |
| 214 | IWL_ERR(priv, "Failed to register hw (error %d)\n", ret); |
Johannes Berg | 0e1fa7e | 2012-06-05 09:38:35 +0200 | [diff] [blame] | 215 | iwl_leds_exit(priv); |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 216 | return ret; |
| 217 | } |
| 218 | priv->mac80211_registered = 1; |
| 219 | |
| 220 | return 0; |
| 221 | } |
| 222 | |
Don Fry | 09af140 | 2011-12-09 10:07:38 -0800 | [diff] [blame] | 223 | void iwlagn_mac_unregister(struct iwl_priv *priv) |
| 224 | { |
| 225 | if (!priv->mac80211_registered) |
| 226 | return; |
| 227 | iwl_leds_exit(priv); |
| 228 | ieee80211_unregister_hw(priv->hw); |
| 229 | priv->mac80211_registered = 0; |
| 230 | } |
| 231 | |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 232 | static int __iwl_up(struct iwl_priv *priv) |
| 233 | { |
| 234 | struct iwl_rxon_context *ctx; |
| 235 | int ret; |
| 236 | |
Johannes Berg | b1eea29 | 2012-03-06 13:30:42 -0800 | [diff] [blame] | 237 | lockdep_assert_held(&priv->mutex); |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 238 | |
Don Fry | 8362640 | 2012-03-07 09:52:37 -0800 | [diff] [blame] | 239 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) { |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 240 | IWL_WARN(priv, "Exit pending; will not bring the NIC up\n"); |
| 241 | return -EIO; |
| 242 | } |
| 243 | |
| 244 | for_each_context(priv, ctx) { |
| 245 | ret = iwlagn_alloc_bcast_station(priv, ctx); |
| 246 | if (ret) { |
| 247 | iwl_dealloc_bcast_stations(priv); |
| 248 | return ret; |
| 249 | } |
| 250 | } |
| 251 | |
Johannes Berg | e199188 | 2012-03-06 13:30:36 -0800 | [diff] [blame] | 252 | ret = iwl_run_init_ucode(priv); |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 253 | if (ret) { |
| 254 | IWL_ERR(priv, "Failed to run INIT ucode: %d\n", ret); |
| 255 | goto error; |
| 256 | } |
| 257 | |
Johannes Berg | e199188 | 2012-03-06 13:30:36 -0800 | [diff] [blame] | 258 | ret = iwl_load_ucode_wait_alive(priv, IWL_UCODE_REGULAR); |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 259 | if (ret) { |
| 260 | IWL_ERR(priv, "Failed to start RT ucode: %d\n", ret); |
| 261 | goto error; |
| 262 | } |
| 263 | |
| 264 | ret = iwl_alive_start(priv); |
| 265 | if (ret) |
| 266 | goto error; |
| 267 | return 0; |
| 268 | |
| 269 | error: |
Don Fry | 8362640 | 2012-03-07 09:52:37 -0800 | [diff] [blame] | 270 | set_bit(STATUS_EXIT_PENDING, &priv->status); |
Emmanuel Grumbach | 78e5a46 | 2012-02-17 10:34:53 -0800 | [diff] [blame] | 271 | iwl_down(priv); |
Don Fry | 8362640 | 2012-03-07 09:52:37 -0800 | [diff] [blame] | 272 | clear_bit(STATUS_EXIT_PENDING, &priv->status); |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 273 | |
| 274 | IWL_ERR(priv, "Unable to initialize device.\n"); |
| 275 | return ret; |
| 276 | } |
| 277 | |
| 278 | static int iwlagn_mac_start(struct ieee80211_hw *hw) |
| 279 | { |
Emmanuel Grumbach | d0f76d6 | 2012-02-09 16:08:15 +0200 | [diff] [blame] | 280 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 281 | int ret; |
| 282 | |
| 283 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
| 284 | |
| 285 | /* we should be verifying the device is ready to be opened */ |
Johannes Berg | b1eea29 | 2012-03-06 13:30:42 -0800 | [diff] [blame] | 286 | mutex_lock(&priv->mutex); |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 287 | ret = __iwl_up(priv); |
Johannes Berg | b1eea29 | 2012-03-06 13:30:42 -0800 | [diff] [blame] | 288 | mutex_unlock(&priv->mutex); |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 289 | if (ret) |
| 290 | return ret; |
| 291 | |
| 292 | IWL_DEBUG_INFO(priv, "Start UP work done.\n"); |
| 293 | |
| 294 | /* Now we should be done, and the READY bit should be set. */ |
Don Fry | 8362640 | 2012-03-07 09:52:37 -0800 | [diff] [blame] | 295 | if (WARN_ON(!test_bit(STATUS_READY, &priv->status))) |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 296 | ret = -EIO; |
| 297 | |
| 298 | iwlagn_led_enable(priv); |
| 299 | |
| 300 | priv->is_open = 1; |
| 301 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
| 302 | return 0; |
| 303 | } |
| 304 | |
Johannes Berg | aca8626 | 2012-05-14 09:08:50 +0200 | [diff] [blame] | 305 | static void iwlagn_mac_stop(struct ieee80211_hw *hw) |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 306 | { |
Emmanuel Grumbach | d0f76d6 | 2012-02-09 16:08:15 +0200 | [diff] [blame] | 307 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 308 | |
| 309 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
| 310 | |
| 311 | if (!priv->is_open) |
| 312 | return; |
| 313 | |
| 314 | priv->is_open = 0; |
| 315 | |
Johannes Berg | b1eea29 | 2012-03-06 13:30:42 -0800 | [diff] [blame] | 316 | mutex_lock(&priv->mutex); |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 317 | iwl_down(priv); |
Johannes Berg | b1eea29 | 2012-03-06 13:30:42 -0800 | [diff] [blame] | 318 | mutex_unlock(&priv->mutex); |
Emmanuel Grumbach | 78e5a46 | 2012-02-17 10:34:53 -0800 | [diff] [blame] | 319 | |
| 320 | iwl_cancel_deferred_work(priv); |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 321 | |
Johannes Berg | 1ee158d | 2012-02-17 10:07:44 -0800 | [diff] [blame] | 322 | flush_workqueue(priv->workqueue); |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 323 | |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 324 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
| 325 | } |
| 326 | |
Johannes Berg | aca8626 | 2012-05-14 09:08:50 +0200 | [diff] [blame] | 327 | static void iwlagn_mac_set_rekey_data(struct ieee80211_hw *hw, |
| 328 | struct ieee80211_vif *vif, |
| 329 | struct cfg80211_gtk_rekey_data *data) |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 330 | { |
Emmanuel Grumbach | d0f76d6 | 2012-02-09 16:08:15 +0200 | [diff] [blame] | 331 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 332 | |
Johannes Berg | 65de7e8 | 2012-04-17 07:36:30 -0700 | [diff] [blame] | 333 | if (iwlwifi_mod_params.sw_crypto) |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 334 | return; |
| 335 | |
| 336 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
Johannes Berg | b1eea29 | 2012-03-06 13:30:42 -0800 | [diff] [blame] | 337 | mutex_lock(&priv->mutex); |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 338 | |
| 339 | if (priv->contexts[IWL_RXON_CTX_BSS].vif != vif) |
| 340 | goto out; |
| 341 | |
| 342 | memcpy(priv->kek, data->kek, NL80211_KEK_LEN); |
| 343 | memcpy(priv->kck, data->kck, NL80211_KCK_LEN); |
| 344 | priv->replay_ctr = |
| 345 | cpu_to_le64(be64_to_cpup((__be64 *)&data->replay_ctr)); |
| 346 | priv->have_rekey_data = true; |
| 347 | |
| 348 | out: |
Johannes Berg | b1eea29 | 2012-03-06 13:30:42 -0800 | [diff] [blame] | 349 | mutex_unlock(&priv->mutex); |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 350 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
| 351 | } |
| 352 | |
| 353 | #ifdef CONFIG_PM_SLEEP |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 354 | |
Johannes Berg | aca8626 | 2012-05-14 09:08:50 +0200 | [diff] [blame] | 355 | static int iwlagn_mac_suspend(struct ieee80211_hw *hw, |
| 356 | struct cfg80211_wowlan *wowlan) |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 357 | { |
Emmanuel Grumbach | d0f76d6 | 2012-02-09 16:08:15 +0200 | [diff] [blame] | 358 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 359 | struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; |
Wey-Yi Guy | 023ca58 | 2011-11-10 06:55:17 -0800 | [diff] [blame] | 360 | int ret; |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 361 | |
| 362 | if (WARN_ON(!wowlan)) |
| 363 | return -EINVAL; |
| 364 | |
| 365 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
Johannes Berg | b1eea29 | 2012-03-06 13:30:42 -0800 | [diff] [blame] | 366 | mutex_lock(&priv->mutex); |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 367 | |
| 368 | /* Don't attempt WoWLAN when not associated, tear down instead. */ |
| 369 | if (!ctx->vif || ctx->vif->type != NL80211_IFTYPE_STATION || |
| 370 | !iwl_is_associated_ctx(ctx)) { |
| 371 | ret = 1; |
| 372 | goto out; |
| 373 | } |
| 374 | |
Johannes Berg | ea886a6 | 2012-03-07 09:52:15 -0800 | [diff] [blame] | 375 | ret = iwlagn_suspend(priv, wowlan); |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 376 | if (ret) |
| 377 | goto error; |
| 378 | |
Johannes Berg | 8ade628 | 2013-05-17 12:01:26 +0200 | [diff] [blame] | 379 | /* let the ucode operate on its own */ |
| 380 | iwl_write32(priv->trans, CSR_UCODE_DRV_GP1_SET, |
| 381 | CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE); |
| 382 | |
Johannes Berg | debff61 | 2013-05-14 13:53:45 +0200 | [diff] [blame] | 383 | iwl_trans_d3_suspend(priv->trans, false); |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 384 | |
| 385 | goto out; |
| 386 | |
| 387 | error: |
Johannes Berg | 15b86bf | 2012-03-05 11:24:36 -0800 | [diff] [blame] | 388 | priv->wowlan = false; |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 389 | iwlagn_prepare_restart(priv); |
| 390 | ieee80211_restart_hw(priv->hw); |
| 391 | out: |
Johannes Berg | b1eea29 | 2012-03-06 13:30:42 -0800 | [diff] [blame] | 392 | mutex_unlock(&priv->mutex); |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 393 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
| 394 | |
| 395 | return ret; |
| 396 | } |
| 397 | |
Johannes Berg | 5718d27 | 2013-01-08 11:29:12 +0100 | [diff] [blame] | 398 | struct iwl_resume_data { |
| 399 | struct iwl_priv *priv; |
| 400 | struct iwlagn_wowlan_status *cmd; |
| 401 | bool valid; |
| 402 | }; |
| 403 | |
| 404 | static bool iwl_resume_status_fn(struct iwl_notif_wait_data *notif_wait, |
| 405 | struct iwl_rx_packet *pkt, void *data) |
| 406 | { |
| 407 | struct iwl_resume_data *resume_data = data; |
| 408 | struct iwl_priv *priv = resume_data->priv; |
Johannes Berg | 5718d27 | 2013-01-08 11:29:12 +0100 | [diff] [blame] | 409 | |
Johannes Berg | 65b3034 | 2014-01-08 13:16:33 +0100 | [diff] [blame] | 410 | if (iwl_rx_packet_payload_len(pkt) != sizeof(*resume_data->cmd)) { |
Johannes Berg | 5718d27 | 2013-01-08 11:29:12 +0100 | [diff] [blame] | 411 | IWL_ERR(priv, "rx wrong size data\n"); |
| 412 | return true; |
| 413 | } |
| 414 | memcpy(resume_data->cmd, pkt->data, sizeof(*resume_data->cmd)); |
| 415 | resume_data->valid = true; |
| 416 | |
| 417 | return true; |
| 418 | } |
| 419 | |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 420 | static int iwlagn_mac_resume(struct ieee80211_hw *hw) |
| 421 | { |
Emmanuel Grumbach | d0f76d6 | 2012-02-09 16:08:15 +0200 | [diff] [blame] | 422 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 423 | struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; |
| 424 | struct ieee80211_vif *vif; |
Johannes Berg | 5718d27 | 2013-01-08 11:29:12 +0100 | [diff] [blame] | 425 | u32 base; |
| 426 | int ret; |
| 427 | enum iwl_d3_status d3_status; |
| 428 | struct error_table_start { |
| 429 | /* cf. struct iwl_error_event_table */ |
| 430 | u32 valid; |
| 431 | u32 error_id; |
| 432 | } err_info; |
| 433 | struct iwl_notification_wait status_wait; |
| 434 | static const u8 status_cmd[] = { |
| 435 | REPLY_WOWLAN_GET_STATUS, |
| 436 | }; |
| 437 | struct iwlagn_wowlan_status status_data = {}; |
| 438 | struct iwl_resume_data resume_data = { |
| 439 | .priv = priv, |
| 440 | .cmd = &status_data, |
| 441 | .valid = false, |
| 442 | }; |
| 443 | struct cfg80211_wowlan_wakeup wakeup = { |
| 444 | .pattern_idx = -1, |
| 445 | }; |
| 446 | #ifdef CONFIG_IWLWIFI_DEBUGFS |
| 447 | const struct fw_img *img; |
| 448 | #endif |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 449 | |
| 450 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
Johannes Berg | b1eea29 | 2012-03-06 13:30:42 -0800 | [diff] [blame] | 451 | mutex_lock(&priv->mutex); |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 452 | |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 453 | /* we'll clear ctx->vif during iwlagn_prepare_restart() */ |
| 454 | vif = ctx->vif; |
| 455 | |
Johannes Berg | debff61 | 2013-05-14 13:53:45 +0200 | [diff] [blame] | 456 | ret = iwl_trans_d3_resume(priv->trans, &d3_status, false); |
Johannes Berg | 5718d27 | 2013-01-08 11:29:12 +0100 | [diff] [blame] | 457 | if (ret) |
| 458 | goto out_unlock; |
| 459 | |
| 460 | if (d3_status != IWL_D3_STATUS_ALIVE) { |
| 461 | IWL_INFO(priv, "Device was reset during suspend\n"); |
| 462 | goto out_unlock; |
| 463 | } |
| 464 | |
Johannes Berg | 8ade628 | 2013-05-17 12:01:26 +0200 | [diff] [blame] | 465 | /* uCode is no longer operating by itself */ |
| 466 | iwl_write32(priv->trans, CSR_UCODE_DRV_GP1_CLR, |
| 467 | CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE); |
| 468 | |
Johannes Berg | 5718d27 | 2013-01-08 11:29:12 +0100 | [diff] [blame] | 469 | base = priv->device_pointers.error_event_table; |
| 470 | if (!iwlagn_hw_valid_rtc_data_addr(base)) { |
| 471 | IWL_WARN(priv, "Invalid error table during resume!\n"); |
| 472 | goto out_unlock; |
| 473 | } |
| 474 | |
| 475 | iwl_trans_read_mem_bytes(priv->trans, base, |
| 476 | &err_info, sizeof(err_info)); |
| 477 | |
| 478 | if (err_info.valid) { |
| 479 | IWL_INFO(priv, "error table is valid (%d, 0x%x)\n", |
| 480 | err_info.valid, err_info.error_id); |
| 481 | if (err_info.error_id == RF_KILL_INDICATOR_FOR_WOWLAN) { |
| 482 | wakeup.rfkill_release = true; |
| 483 | ieee80211_report_wowlan_wakeup(vif, &wakeup, |
| 484 | GFP_KERNEL); |
| 485 | } |
| 486 | goto out_unlock; |
| 487 | } |
| 488 | |
| 489 | #ifdef CONFIG_IWLWIFI_DEBUGFS |
| 490 | img = &priv->fw->img[IWL_UCODE_WOWLAN]; |
| 491 | if (!priv->wowlan_sram) |
| 492 | priv->wowlan_sram = |
| 493 | kzalloc(img->sec[IWL_UCODE_SECTION_DATA].len, |
| 494 | GFP_KERNEL); |
| 495 | |
| 496 | if (priv->wowlan_sram) |
| 497 | iwl_trans_read_mem(priv->trans, 0x800000, |
| 498 | priv->wowlan_sram, |
| 499 | img->sec[IWL_UCODE_SECTION_DATA].len / 4); |
| 500 | #endif |
| 501 | |
| 502 | /* |
| 503 | * This is very strange. The GET_STATUS command is sent but the device |
| 504 | * doesn't reply properly, it seems it doesn't close the RBD so one is |
| 505 | * always left open ... As a result, we need to send another command |
| 506 | * and have to reset the driver afterwards. As we need to switch to |
| 507 | * runtime firmware again that'll happen. |
| 508 | */ |
| 509 | |
| 510 | iwl_init_notification_wait(&priv->notif_wait, &status_wait, status_cmd, |
| 511 | ARRAY_SIZE(status_cmd), iwl_resume_status_fn, |
| 512 | &resume_data); |
| 513 | |
| 514 | iwl_dvm_send_cmd_pdu(priv, REPLY_WOWLAN_GET_STATUS, CMD_ASYNC, 0, NULL); |
| 515 | iwl_dvm_send_cmd_pdu(priv, REPLY_ECHO, CMD_ASYNC, 0, NULL); |
| 516 | /* an RBD is left open in the firmware now! */ |
| 517 | |
| 518 | ret = iwl_wait_notification(&priv->notif_wait, &status_wait, HZ/5); |
| 519 | if (ret) |
| 520 | goto out_unlock; |
| 521 | |
| 522 | if (resume_data.valid && priv->contexts[IWL_RXON_CTX_BSS].vif) { |
| 523 | u32 reasons = le32_to_cpu(status_data.wakeup_reason); |
| 524 | struct cfg80211_wowlan_wakeup *wakeup_report; |
| 525 | |
| 526 | IWL_INFO(priv, "WoWLAN wakeup reason(s): 0x%.8x\n", reasons); |
| 527 | |
| 528 | if (reasons) { |
| 529 | if (reasons & IWLAGN_WOWLAN_WAKEUP_MAGIC_PACKET) |
| 530 | wakeup.magic_pkt = true; |
| 531 | if (reasons & IWLAGN_WOWLAN_WAKEUP_PATTERN_MATCH) |
| 532 | wakeup.pattern_idx = status_data.pattern_number; |
| 533 | if (reasons & (IWLAGN_WOWLAN_WAKEUP_BEACON_MISS | |
| 534 | IWLAGN_WOWLAN_WAKEUP_LINK_CHANGE)) |
| 535 | wakeup.disconnect = true; |
| 536 | if (reasons & IWLAGN_WOWLAN_WAKEUP_GTK_REKEY_FAIL) |
| 537 | wakeup.gtk_rekey_failure = true; |
| 538 | if (reasons & IWLAGN_WOWLAN_WAKEUP_EAP_IDENT_REQ) |
| 539 | wakeup.eap_identity_req = true; |
| 540 | if (reasons & IWLAGN_WOWLAN_WAKEUP_4WAY_HANDSHAKE) |
| 541 | wakeup.four_way_handshake = true; |
| 542 | wakeup_report = &wakeup; |
| 543 | } else { |
| 544 | wakeup_report = NULL; |
| 545 | } |
| 546 | |
| 547 | ieee80211_report_wowlan_wakeup(vif, wakeup_report, GFP_KERNEL); |
| 548 | } |
| 549 | |
Johannes Berg | 15b86bf | 2012-03-05 11:24:36 -0800 | [diff] [blame] | 550 | priv->wowlan = false; |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 551 | |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 552 | iwlagn_prepare_restart(priv); |
| 553 | |
| 554 | memset((void *)&ctx->active, 0, sizeof(ctx->active)); |
| 555 | iwl_connection_init_rx_config(priv, ctx); |
| 556 | iwlagn_set_rxon_chain(priv, ctx); |
| 557 | |
Johannes Berg | 5718d27 | 2013-01-08 11:29:12 +0100 | [diff] [blame] | 558 | out_unlock: |
Johannes Berg | b1eea29 | 2012-03-06 13:30:42 -0800 | [diff] [blame] | 559 | mutex_unlock(&priv->mutex); |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 560 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
| 561 | |
| 562 | ieee80211_resume_disconnect(vif); |
| 563 | |
| 564 | return 1; |
| 565 | } |
| 566 | |
Johannes Berg | 76ed2ed | 2012-05-16 22:54:25 +0200 | [diff] [blame] | 567 | static void iwlagn_mac_set_wakeup(struct ieee80211_hw *hw, bool enabled) |
| 568 | { |
| 569 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
| 570 | |
| 571 | device_set_wakeup_enable(priv->trans->dev, enabled); |
| 572 | } |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 573 | #endif |
| 574 | |
Thomas Huehn | 36323f8 | 2012-07-23 21:33:42 +0200 | [diff] [blame] | 575 | static void iwlagn_mac_tx(struct ieee80211_hw *hw, |
| 576 | struct ieee80211_tx_control *control, |
| 577 | struct sk_buff *skb) |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 578 | { |
Emmanuel Grumbach | d0f76d6 | 2012-02-09 16:08:15 +0200 | [diff] [blame] | 579 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 580 | |
Thomas Huehn | 36323f8 | 2012-07-23 21:33:42 +0200 | [diff] [blame] | 581 | if (iwlagn_tx_skb(priv, control->sta, skb)) |
Johannes Berg | 31df3bb | 2012-10-31 22:07:39 +0100 | [diff] [blame] | 582 | ieee80211_free_txskb(hw, skb); |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 583 | } |
| 584 | |
Johannes Berg | aca8626 | 2012-05-14 09:08:50 +0200 | [diff] [blame] | 585 | static void iwlagn_mac_update_tkip_key(struct ieee80211_hw *hw, |
| 586 | struct ieee80211_vif *vif, |
| 587 | struct ieee80211_key_conf *keyconf, |
| 588 | struct ieee80211_sta *sta, |
| 589 | u32 iv32, u16 *phase1key) |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 590 | { |
Emmanuel Grumbach | d0f76d6 | 2012-02-09 16:08:15 +0200 | [diff] [blame] | 591 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 592 | |
| 593 | iwl_update_tkip_key(priv, vif, keyconf, sta, iv32, phase1key); |
| 594 | } |
| 595 | |
Johannes Berg | aca8626 | 2012-05-14 09:08:50 +0200 | [diff] [blame] | 596 | static int iwlagn_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, |
| 597 | struct ieee80211_vif *vif, |
| 598 | struct ieee80211_sta *sta, |
| 599 | struct ieee80211_key_conf *key) |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 600 | { |
Emmanuel Grumbach | d0f76d6 | 2012-02-09 16:08:15 +0200 | [diff] [blame] | 601 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 602 | struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; |
| 603 | struct iwl_rxon_context *ctx = vif_priv->ctx; |
| 604 | int ret; |
| 605 | bool is_default_wep_key = false; |
| 606 | |
| 607 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
| 608 | |
Johannes Berg | 65de7e8 | 2012-04-17 07:36:30 -0700 | [diff] [blame] | 609 | if (iwlwifi_mod_params.sw_crypto) { |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 610 | IWL_DEBUG_MAC80211(priv, "leave - hwcrypto disabled\n"); |
| 611 | return -EOPNOTSUPP; |
| 612 | } |
| 613 | |
Johannes Berg | a7e12c8 | 2011-11-25 03:20:09 -0800 | [diff] [blame] | 614 | switch (key->cipher) { |
| 615 | case WLAN_CIPHER_SUITE_TKIP: |
| 616 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; |
| 617 | /* fall through */ |
| 618 | case WLAN_CIPHER_SUITE_CCMP: |
| 619 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; |
| 620 | break; |
| 621 | default: |
| 622 | break; |
| 623 | } |
| 624 | |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 625 | /* |
| 626 | * We could program these keys into the hardware as well, but we |
| 627 | * don't expect much multicast traffic in IBSS and having keys |
| 628 | * for more stations is probably more useful. |
| 629 | * |
| 630 | * Mark key TX-only and return 0. |
| 631 | */ |
| 632 | if (vif->type == NL80211_IFTYPE_ADHOC && |
| 633 | !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) { |
| 634 | key->hw_key_idx = WEP_INVALID_OFFSET; |
| 635 | return 0; |
| 636 | } |
| 637 | |
| 638 | /* If they key was TX-only, accept deletion */ |
| 639 | if (cmd == DISABLE_KEY && key->hw_key_idx == WEP_INVALID_OFFSET) |
| 640 | return 0; |
| 641 | |
Johannes Berg | b1eea29 | 2012-03-06 13:30:42 -0800 | [diff] [blame] | 642 | mutex_lock(&priv->mutex); |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 643 | iwl_scan_cancel_timeout(priv, 100); |
| 644 | |
| 645 | BUILD_BUG_ON(WEP_INVALID_OFFSET == IWLAGN_HW_KEY_DEFAULT); |
| 646 | |
| 647 | /* |
| 648 | * If we are getting WEP group key and we didn't receive any key mapping |
| 649 | * so far, we are in legacy wep mode (group key only), otherwise we are |
| 650 | * in 1X mode. |
| 651 | * In legacy wep mode, we use another host command to the uCode. |
| 652 | */ |
| 653 | if ((key->cipher == WLAN_CIPHER_SUITE_WEP40 || |
| 654 | key->cipher == WLAN_CIPHER_SUITE_WEP104) && !sta) { |
| 655 | if (cmd == SET_KEY) |
| 656 | is_default_wep_key = !ctx->key_mapping_keys; |
| 657 | else |
| 658 | is_default_wep_key = |
| 659 | key->hw_key_idx == IWLAGN_HW_KEY_DEFAULT; |
| 660 | } |
| 661 | |
| 662 | |
| 663 | switch (cmd) { |
| 664 | case SET_KEY: |
| 665 | if (is_default_wep_key) { |
| 666 | ret = iwl_set_default_wep_key(priv, vif_priv->ctx, key); |
| 667 | break; |
| 668 | } |
| 669 | ret = iwl_set_dynamic_key(priv, vif_priv->ctx, key, sta); |
| 670 | if (ret) { |
| 671 | /* |
| 672 | * can't add key for RX, but we don't need it |
| 673 | * in the device for TX so still return 0 |
| 674 | */ |
| 675 | ret = 0; |
| 676 | key->hw_key_idx = WEP_INVALID_OFFSET; |
| 677 | } |
| 678 | |
| 679 | IWL_DEBUG_MAC80211(priv, "enable hwcrypto key\n"); |
| 680 | break; |
| 681 | case DISABLE_KEY: |
| 682 | if (is_default_wep_key) |
| 683 | ret = iwl_remove_default_wep_key(priv, ctx, key); |
| 684 | else |
| 685 | ret = iwl_remove_dynamic_key(priv, ctx, key, sta); |
| 686 | |
| 687 | IWL_DEBUG_MAC80211(priv, "disable hwcrypto key\n"); |
| 688 | break; |
| 689 | default: |
| 690 | ret = -EINVAL; |
| 691 | } |
| 692 | |
Johannes Berg | b1eea29 | 2012-03-06 13:30:42 -0800 | [diff] [blame] | 693 | mutex_unlock(&priv->mutex); |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 694 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
| 695 | |
| 696 | return ret; |
| 697 | } |
| 698 | |
Johannes Berg | aca8626 | 2012-05-14 09:08:50 +0200 | [diff] [blame] | 699 | static int iwlagn_mac_ampdu_action(struct ieee80211_hw *hw, |
| 700 | struct ieee80211_vif *vif, |
| 701 | enum ieee80211_ampdu_mlme_action action, |
| 702 | struct ieee80211_sta *sta, u16 tid, u16 *ssn, |
| 703 | u8 buf_size) |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 704 | { |
Emmanuel Grumbach | d0f76d6 | 2012-02-09 16:08:15 +0200 | [diff] [blame] | 705 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 706 | int ret = -EINVAL; |
| 707 | struct iwl_station_priv *sta_priv = (void *) sta->drv_priv; |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 708 | |
| 709 | IWL_DEBUG_HT(priv, "A-MPDU action on addr %pM tid %d\n", |
| 710 | sta->addr, tid); |
| 711 | |
Eytan Lifshitz | b7998c8 | 2012-12-01 20:59:49 +0200 | [diff] [blame] | 712 | if (!(priv->nvm_data->sku_cap_11n_enable)) |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 713 | return -EACCES; |
| 714 | |
| 715 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
Johannes Berg | b1eea29 | 2012-03-06 13:30:42 -0800 | [diff] [blame] | 716 | mutex_lock(&priv->mutex); |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 717 | |
| 718 | switch (action) { |
| 719 | case IEEE80211_AMPDU_RX_START: |
Johannes Berg | 65de7e8 | 2012-04-17 07:36:30 -0700 | [diff] [blame] | 720 | if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG) |
Johannes Berg | 7428994 | 2011-12-13 00:07:40 -0800 | [diff] [blame] | 721 | break; |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 722 | IWL_DEBUG_HT(priv, "start Rx\n"); |
| 723 | ret = iwl_sta_rx_agg_start(priv, sta, tid, *ssn); |
| 724 | break; |
| 725 | case IEEE80211_AMPDU_RX_STOP: |
| 726 | IWL_DEBUG_HT(priv, "stop Rx\n"); |
| 727 | ret = iwl_sta_rx_agg_stop(priv, sta, tid); |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 728 | break; |
| 729 | case IEEE80211_AMPDU_TX_START: |
Emmanuel Grumbach | 4beaf6c | 2012-05-29 11:29:10 +0300 | [diff] [blame] | 730 | if (!priv->trans->ops->txq_enable) |
Johannes Berg | 9eae88f | 2012-03-15 13:26:52 -0700 | [diff] [blame] | 731 | break; |
Johannes Berg | 65de7e8 | 2012-04-17 07:36:30 -0700 | [diff] [blame] | 732 | if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG) |
Johannes Berg | 7428994 | 2011-12-13 00:07:40 -0800 | [diff] [blame] | 733 | break; |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 734 | IWL_DEBUG_HT(priv, "start Tx\n"); |
| 735 | ret = iwlagn_tx_agg_start(priv, vif, sta, tid, ssn); |
| 736 | break; |
Johannes Berg | 18b559d | 2012-07-18 13:51:25 +0200 | [diff] [blame] | 737 | case IEEE80211_AMPDU_TX_STOP_FLUSH: |
| 738 | case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: |
Emmanuel Grumbach | 2d055af | 2013-04-07 10:13:44 +0300 | [diff] [blame] | 739 | IWL_DEBUG_HT(priv, "Flush Tx\n"); |
| 740 | ret = iwlagn_tx_agg_flush(priv, vif, sta, tid); |
| 741 | break; |
| 742 | case IEEE80211_AMPDU_TX_STOP_CONT: |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 743 | IWL_DEBUG_HT(priv, "stop Tx\n"); |
| 744 | ret = iwlagn_tx_agg_stop(priv, vif, sta, tid); |
| 745 | if ((ret == 0) && (priv->agg_tids_count > 0)) { |
| 746 | priv->agg_tids_count--; |
| 747 | IWL_DEBUG_HT(priv, "priv->agg_tids_count = %u\n", |
| 748 | priv->agg_tids_count); |
| 749 | } |
Johannes Berg | b9ad70d | 2012-03-06 13:30:55 -0800 | [diff] [blame] | 750 | if (!priv->agg_tids_count && |
Johannes Berg | 9e29511 | 2012-04-09 17:46:55 -0700 | [diff] [blame] | 751 | priv->hw_params.use_rts_for_aggregation) { |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 752 | /* |
| 753 | * switch off RTS/CTS if it was previously enabled |
| 754 | */ |
| 755 | sta_priv->lq_sta.lq.general_params.flags &= |
| 756 | ~LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK; |
| 757 | iwl_send_lq_cmd(priv, iwl_rxon_ctx_from_vif(vif), |
| 758 | &sta_priv->lq_sta.lq, CMD_ASYNC, false); |
| 759 | } |
| 760 | break; |
| 761 | case IEEE80211_AMPDU_TX_OPERATIONAL: |
Emmanuel Grumbach | 822e8b2 | 2011-11-21 13:25:31 +0200 | [diff] [blame] | 762 | ret = iwlagn_tx_agg_oper(priv, vif, sta, tid, buf_size); |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 763 | break; |
| 764 | } |
Johannes Berg | b1eea29 | 2012-03-06 13:30:42 -0800 | [diff] [blame] | 765 | mutex_unlock(&priv->mutex); |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 766 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
| 767 | return ret; |
| 768 | } |
| 769 | |
| 770 | static int iwlagn_mac_sta_add(struct ieee80211_hw *hw, |
| 771 | struct ieee80211_vif *vif, |
| 772 | struct ieee80211_sta *sta) |
| 773 | { |
Emmanuel Grumbach | d0f76d6 | 2012-02-09 16:08:15 +0200 | [diff] [blame] | 774 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 775 | struct iwl_station_priv *sta_priv = (void *)sta->drv_priv; |
| 776 | struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; |
| 777 | bool is_ap = vif->type == NL80211_IFTYPE_STATION; |
Johannes Berg | fb5fe5b | 2012-03-05 11:24:29 -0800 | [diff] [blame] | 778 | int ret; |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 779 | u8 sta_id; |
| 780 | |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 781 | IWL_DEBUG_INFO(priv, "proceeding to add station %pM\n", |
| 782 | sta->addr); |
| 783 | sta_priv->sta_id = IWL_INVALID_STATION; |
| 784 | |
| 785 | atomic_set(&sta_priv->pending_frames, 0); |
| 786 | if (vif->type == NL80211_IFTYPE_AP) |
| 787 | sta_priv->client = true; |
| 788 | |
| 789 | ret = iwl_add_station_common(priv, vif_priv->ctx, sta->addr, |
| 790 | is_ap, sta, &sta_id); |
| 791 | if (ret) { |
| 792 | IWL_ERR(priv, "Unable to add station %pM (%d)\n", |
| 793 | sta->addr, ret); |
| 794 | /* Should we return success if return code is EEXIST ? */ |
Johannes Berg | fb5fe5b | 2012-03-05 11:24:29 -0800 | [diff] [blame] | 795 | return ret; |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 796 | } |
| 797 | |
| 798 | sta_priv->sta_id = sta_id; |
| 799 | |
Johannes Berg | fb5fe5b | 2012-03-05 11:24:29 -0800 | [diff] [blame] | 800 | return 0; |
| 801 | } |
| 802 | |
| 803 | static int iwlagn_mac_sta_remove(struct ieee80211_hw *hw, |
| 804 | struct ieee80211_vif *vif, |
| 805 | struct ieee80211_sta *sta) |
| 806 | { |
| 807 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
| 808 | struct iwl_station_priv *sta_priv = (void *)sta->drv_priv; |
| 809 | int ret; |
| 810 | |
Johannes Berg | 9742051 | 2012-03-07 09:52:42 -0800 | [diff] [blame] | 811 | IWL_DEBUG_INFO(priv, "proceeding to remove station %pM\n", sta->addr); |
| 812 | |
| 813 | if (vif->type == NL80211_IFTYPE_STATION) { |
| 814 | /* |
| 815 | * Station will be removed from device when the RXON |
| 816 | * is set to unassociated -- just deactivate it here |
| 817 | * to avoid re-programming it. |
| 818 | */ |
| 819 | ret = 0; |
| 820 | iwl_deactivate_station(priv, sta_priv->sta_id, sta->addr); |
| 821 | } else { |
| 822 | ret = iwl_remove_station(priv, sta_priv->sta_id, sta->addr); |
| 823 | if (ret) |
| 824 | IWL_DEBUG_QUIET_RFKILL(priv, |
| 825 | "Error removing station %pM\n", sta->addr); |
| 826 | } |
Johannes Berg | fb5fe5b | 2012-03-05 11:24:29 -0800 | [diff] [blame] | 827 | return ret; |
| 828 | } |
| 829 | |
Johannes Berg | aca8626 | 2012-05-14 09:08:50 +0200 | [diff] [blame] | 830 | static int iwlagn_mac_sta_state(struct ieee80211_hw *hw, |
| 831 | struct ieee80211_vif *vif, |
| 832 | struct ieee80211_sta *sta, |
| 833 | enum ieee80211_sta_state old_state, |
| 834 | enum ieee80211_sta_state new_state) |
Johannes Berg | fb5fe5b | 2012-03-05 11:24:29 -0800 | [diff] [blame] | 835 | { |
| 836 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
Johannes Berg | ab0bd5b | 2012-03-05 11:24:47 -0800 | [diff] [blame] | 837 | struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; |
Johannes Berg | fb5fe5b | 2012-03-05 11:24:29 -0800 | [diff] [blame] | 838 | enum { |
Johannes Berg | ab0bd5b | 2012-03-05 11:24:47 -0800 | [diff] [blame] | 839 | NONE, ADD, REMOVE, HT_RATE_INIT, ADD_RATE_INIT, |
Johannes Berg | fb5fe5b | 2012-03-05 11:24:29 -0800 | [diff] [blame] | 840 | } op = NONE; |
| 841 | int ret; |
| 842 | |
| 843 | IWL_DEBUG_MAC80211(priv, "station %pM state change %d->%d\n", |
| 844 | sta->addr, old_state, new_state); |
| 845 | |
Johannes Berg | b1eea29 | 2012-03-06 13:30:42 -0800 | [diff] [blame] | 846 | mutex_lock(&priv->mutex); |
Johannes Berg | fb5fe5b | 2012-03-05 11:24:29 -0800 | [diff] [blame] | 847 | if (vif->type == NL80211_IFTYPE_STATION) { |
| 848 | if (old_state == IEEE80211_STA_NOTEXIST && |
| 849 | new_state == IEEE80211_STA_NONE) |
| 850 | op = ADD; |
| 851 | else if (old_state == IEEE80211_STA_NONE && |
| 852 | new_state == IEEE80211_STA_NOTEXIST) |
| 853 | op = REMOVE; |
| 854 | else if (old_state == IEEE80211_STA_AUTH && |
| 855 | new_state == IEEE80211_STA_ASSOC) |
Johannes Berg | ab0bd5b | 2012-03-05 11:24:47 -0800 | [diff] [blame] | 856 | op = HT_RATE_INIT; |
Johannes Berg | fb5fe5b | 2012-03-05 11:24:29 -0800 | [diff] [blame] | 857 | } else { |
| 858 | if (old_state == IEEE80211_STA_AUTH && |
| 859 | new_state == IEEE80211_STA_ASSOC) |
| 860 | op = ADD_RATE_INIT; |
| 861 | else if (old_state == IEEE80211_STA_ASSOC && |
| 862 | new_state == IEEE80211_STA_AUTH) |
| 863 | op = REMOVE; |
| 864 | } |
| 865 | |
| 866 | switch (op) { |
| 867 | case ADD: |
| 868 | ret = iwlagn_mac_sta_add(hw, vif, sta); |
Johannes Berg | eac9ac6 | 2012-06-25 09:36:41 +0200 | [diff] [blame] | 869 | if (ret) |
| 870 | break; |
| 871 | /* |
| 872 | * Clear the in-progress flag, the AP station entry was added |
| 873 | * but we'll initialize LQ only when we've associated (which |
| 874 | * would also clear the in-progress flag). This is necessary |
| 875 | * in case we never initialize LQ because association fails. |
| 876 | */ |
| 877 | spin_lock_bh(&priv->sta_lock); |
| 878 | priv->stations[iwl_sta_id(sta)].used &= |
| 879 | ~IWL_STA_UCODE_INPROGRESS; |
| 880 | spin_unlock_bh(&priv->sta_lock); |
Johannes Berg | fb5fe5b | 2012-03-05 11:24:29 -0800 | [diff] [blame] | 881 | break; |
| 882 | case REMOVE: |
| 883 | ret = iwlagn_mac_sta_remove(hw, vif, sta); |
| 884 | break; |
| 885 | case ADD_RATE_INIT: |
| 886 | ret = iwlagn_mac_sta_add(hw, vif, sta); |
| 887 | if (ret) |
| 888 | break; |
Johannes Berg | fb5fe5b | 2012-03-05 11:24:29 -0800 | [diff] [blame] | 889 | /* Initialize rate scaling */ |
| 890 | IWL_DEBUG_INFO(priv, |
| 891 | "Initializing rate scaling for station %pM\n", |
| 892 | sta->addr); |
| 893 | iwl_rs_rate_init(priv, sta, iwl_sta_id(sta)); |
| 894 | ret = 0; |
| 895 | break; |
Johannes Berg | ab0bd5b | 2012-03-05 11:24:47 -0800 | [diff] [blame] | 896 | case HT_RATE_INIT: |
| 897 | /* Initialize rate scaling */ |
| 898 | ret = iwl_sta_update_ht(priv, vif_priv->ctx, sta); |
| 899 | if (ret) |
| 900 | break; |
| 901 | IWL_DEBUG_INFO(priv, |
| 902 | "Initializing rate scaling for station %pM\n", |
| 903 | sta->addr); |
| 904 | iwl_rs_rate_init(priv, sta, iwl_sta_id(sta)); |
| 905 | ret = 0; |
| 906 | break; |
Johannes Berg | fb5fe5b | 2012-03-05 11:24:29 -0800 | [diff] [blame] | 907 | default: |
| 908 | ret = 0; |
| 909 | break; |
| 910 | } |
| 911 | |
| 912 | /* |
| 913 | * mac80211 might WARN if we fail, but due the way we |
| 914 | * (badly) handle hard rfkill, we might fail here |
| 915 | */ |
Don Fry | 8362640 | 2012-03-07 09:52:37 -0800 | [diff] [blame] | 916 | if (iwl_is_rfkill(priv)) |
Johannes Berg | fb5fe5b | 2012-03-05 11:24:29 -0800 | [diff] [blame] | 917 | ret = 0; |
| 918 | |
Johannes Berg | b1eea29 | 2012-03-06 13:30:42 -0800 | [diff] [blame] | 919 | mutex_unlock(&priv->mutex); |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 920 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
| 921 | |
| 922 | return ret; |
| 923 | } |
| 924 | |
Johannes Berg | aca8626 | 2012-05-14 09:08:50 +0200 | [diff] [blame] | 925 | static void iwlagn_mac_channel_switch(struct ieee80211_hw *hw, |
| 926 | struct ieee80211_channel_switch *ch_switch) |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 927 | { |
Emmanuel Grumbach | d0f76d6 | 2012-02-09 16:08:15 +0200 | [diff] [blame] | 928 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 929 | struct ieee80211_conf *conf = &hw->conf; |
Johannes Berg | 85220d7 | 2013-03-25 18:29:27 +0100 | [diff] [blame] | 930 | struct ieee80211_channel *channel = ch_switch->chandef.chan; |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 931 | struct iwl_ht_config *ht_conf = &priv->current_ht_config; |
| 932 | /* |
| 933 | * MULTI-FIXME |
| 934 | * When we add support for multiple interfaces, we need to |
| 935 | * revisit this. The channel switch command in the device |
| 936 | * only affects the BSS context, but what does that really |
| 937 | * mean? And what if we get a CSA on the second interface? |
| 938 | * This needs a lot of work. |
| 939 | */ |
| 940 | struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; |
| 941 | u16 ch; |
| 942 | |
| 943 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
| 944 | |
Johannes Berg | b1eea29 | 2012-03-06 13:30:42 -0800 | [diff] [blame] | 945 | mutex_lock(&priv->mutex); |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 946 | |
Don Fry | 8362640 | 2012-03-07 09:52:37 -0800 | [diff] [blame] | 947 | if (iwl_is_rfkill(priv)) |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 948 | goto out; |
| 949 | |
Don Fry | 8362640 | 2012-03-07 09:52:37 -0800 | [diff] [blame] | 950 | if (test_bit(STATUS_EXIT_PENDING, &priv->status) || |
| 951 | test_bit(STATUS_SCANNING, &priv->status) || |
| 952 | test_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status)) |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 953 | goto out; |
| 954 | |
| 955 | if (!iwl_is_associated_ctx(ctx)) |
| 956 | goto out; |
| 957 | |
Johannes Berg | e967669 | 2012-04-10 14:10:28 -0700 | [diff] [blame] | 958 | if (!priv->lib->set_channel_switch) |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 959 | goto out; |
| 960 | |
| 961 | ch = channel->hw_value; |
| 962 | if (le16_to_cpu(ctx->active.channel) == ch) |
| 963 | goto out; |
| 964 | |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 965 | priv->current_ht_config.smps = conf->smps_mode; |
| 966 | |
| 967 | /* Configure HT40 channels */ |
Johannes Berg | 85220d7 | 2013-03-25 18:29:27 +0100 | [diff] [blame] | 968 | switch (cfg80211_get_chandef_type(&ch_switch->chandef)) { |
| 969 | case NL80211_CHAN_NO_HT: |
| 970 | case NL80211_CHAN_HT20: |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 971 | ctx->ht.is_40mhz = false; |
Johannes Berg | 85220d7 | 2013-03-25 18:29:27 +0100 | [diff] [blame] | 972 | ctx->ht.extension_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_NONE; |
| 973 | break; |
| 974 | case NL80211_CHAN_HT40MINUS: |
| 975 | ctx->ht.extension_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_BELOW; |
| 976 | ctx->ht.is_40mhz = true; |
| 977 | break; |
| 978 | case NL80211_CHAN_HT40PLUS: |
| 979 | ctx->ht.extension_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_ABOVE; |
| 980 | ctx->ht.is_40mhz = true; |
| 981 | break; |
| 982 | } |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 983 | |
| 984 | if ((le16_to_cpu(ctx->staging.channel) != ch)) |
| 985 | ctx->staging.flags = 0; |
| 986 | |
| 987 | iwl_set_rxon_channel(priv, channel, ctx); |
| 988 | iwl_set_rxon_ht(priv, ht_conf); |
| 989 | iwl_set_flags_for_band(priv, ctx, channel->band, ctx->vif); |
| 990 | |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 991 | /* |
| 992 | * at this point, staging_rxon has the |
| 993 | * configuration for channel switch |
| 994 | */ |
Don Fry | 8362640 | 2012-03-07 09:52:37 -0800 | [diff] [blame] | 995 | set_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status); |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 996 | priv->switch_channel = cpu_to_le16(ch); |
Johannes Berg | e967669 | 2012-04-10 14:10:28 -0700 | [diff] [blame] | 997 | if (priv->lib->set_channel_switch(priv, ch_switch)) { |
Don Fry | 8362640 | 2012-03-07 09:52:37 -0800 | [diff] [blame] | 998 | clear_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status); |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 999 | priv->switch_channel = 0; |
| 1000 | ieee80211_chswitch_done(ctx->vif, false); |
| 1001 | } |
| 1002 | |
| 1003 | out: |
Johannes Berg | b1eea29 | 2012-03-06 13:30:42 -0800 | [diff] [blame] | 1004 | mutex_unlock(&priv->mutex); |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 1005 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
| 1006 | } |
| 1007 | |
Meenakshi Venkataraman | bedec3a | 2012-03-13 17:47:23 -0700 | [diff] [blame] | 1008 | void iwl_chswitch_done(struct iwl_priv *priv, bool is_success) |
| 1009 | { |
| 1010 | /* |
| 1011 | * MULTI-FIXME |
| 1012 | * See iwlagn_mac_channel_switch. |
| 1013 | */ |
| 1014 | struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; |
| 1015 | |
| 1016 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
| 1017 | return; |
| 1018 | |
Stanislaw Gruszka | 9186a1fd | 2013-07-26 15:29:09 +0200 | [diff] [blame] | 1019 | if (!test_and_clear_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status)) |
| 1020 | return; |
| 1021 | |
| 1022 | if (ctx->vif) |
Meenakshi Venkataraman | bedec3a | 2012-03-13 17:47:23 -0700 | [diff] [blame] | 1023 | ieee80211_chswitch_done(ctx->vif, is_success); |
| 1024 | } |
| 1025 | |
Johannes Berg | aca8626 | 2012-05-14 09:08:50 +0200 | [diff] [blame] | 1026 | static void iwlagn_configure_filter(struct ieee80211_hw *hw, |
| 1027 | unsigned int changed_flags, |
| 1028 | unsigned int *total_flags, |
| 1029 | u64 multicast) |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 1030 | { |
Emmanuel Grumbach | d0f76d6 | 2012-02-09 16:08:15 +0200 | [diff] [blame] | 1031 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 1032 | __le32 filter_or = 0, filter_nand = 0; |
| 1033 | struct iwl_rxon_context *ctx; |
| 1034 | |
| 1035 | #define CHK(test, flag) do { \ |
| 1036 | if (*total_flags & (test)) \ |
| 1037 | filter_or |= (flag); \ |
| 1038 | else \ |
| 1039 | filter_nand |= (flag); \ |
| 1040 | } while (0) |
| 1041 | |
| 1042 | IWL_DEBUG_MAC80211(priv, "Enter: changed: 0x%x, total: 0x%x\n", |
| 1043 | changed_flags, *total_flags); |
| 1044 | |
| 1045 | CHK(FIF_OTHER_BSS | FIF_PROMISC_IN_BSS, RXON_FILTER_PROMISC_MSK); |
| 1046 | /* Setting _just_ RXON_FILTER_CTL2HOST_MSK causes FH errors */ |
| 1047 | CHK(FIF_CONTROL, RXON_FILTER_CTL2HOST_MSK | RXON_FILTER_PROMISC_MSK); |
| 1048 | CHK(FIF_BCN_PRBRESP_PROMISC, RXON_FILTER_BCON_AWARE_MSK); |
| 1049 | |
| 1050 | #undef CHK |
| 1051 | |
Johannes Berg | b1eea29 | 2012-03-06 13:30:42 -0800 | [diff] [blame] | 1052 | mutex_lock(&priv->mutex); |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 1053 | |
| 1054 | for_each_context(priv, ctx) { |
| 1055 | ctx->staging.filter_flags &= ~filter_nand; |
| 1056 | ctx->staging.filter_flags |= filter_or; |
| 1057 | |
| 1058 | /* |
| 1059 | * Not committing directly because hardware can perform a scan, |
| 1060 | * but we'll eventually commit the filter flags change anyway. |
| 1061 | */ |
| 1062 | } |
| 1063 | |
Johannes Berg | b1eea29 | 2012-03-06 13:30:42 -0800 | [diff] [blame] | 1064 | mutex_unlock(&priv->mutex); |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 1065 | |
| 1066 | /* |
| 1067 | * Receiving all multicast frames is always enabled by the |
| 1068 | * default flags setup in iwl_connection_init_rx_config() |
| 1069 | * since we currently do not support programming multicast |
| 1070 | * filters into the device. |
| 1071 | */ |
| 1072 | *total_flags &= FIF_OTHER_BSS | FIF_ALLMULTI | FIF_PROMISC_IN_BSS | |
| 1073 | FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL; |
| 1074 | } |
| 1075 | |
Johannes Berg | 39ecc01 | 2013-02-13 12:11:00 +0100 | [diff] [blame] | 1076 | static void iwlagn_mac_flush(struct ieee80211_hw *hw, u32 queues, bool drop) |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 1077 | { |
Emmanuel Grumbach | d0f76d6 | 2012-02-09 16:08:15 +0200 | [diff] [blame] | 1078 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 1079 | |
Johannes Berg | b1eea29 | 2012-03-06 13:30:42 -0800 | [diff] [blame] | 1080 | mutex_lock(&priv->mutex); |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 1081 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
| 1082 | |
Don Fry | 8362640 | 2012-03-07 09:52:37 -0800 | [diff] [blame] | 1083 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) { |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 1084 | IWL_DEBUG_TX(priv, "Aborting flush due to device shutdown\n"); |
| 1085 | goto done; |
| 1086 | } |
Don Fry | 8362640 | 2012-03-07 09:52:37 -0800 | [diff] [blame] | 1087 | if (iwl_is_rfkill(priv)) { |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 1088 | IWL_DEBUG_TX(priv, "Aborting flush due to RF Kill\n"); |
| 1089 | goto done; |
| 1090 | } |
| 1091 | |
| 1092 | /* |
| 1093 | * mac80211 will not push any more frames for transmit |
| 1094 | * until the flush is completed |
| 1095 | */ |
| 1096 | if (drop) { |
| 1097 | IWL_DEBUG_MAC80211(priv, "send flush command\n"); |
Emmanuel Grumbach | 2d055af | 2013-04-07 10:13:44 +0300 | [diff] [blame] | 1098 | if (iwlagn_txfifo_flush(priv, 0)) { |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 1099 | IWL_ERR(priv, "flush request fail\n"); |
| 1100 | goto done; |
| 1101 | } |
| 1102 | } |
| 1103 | IWL_DEBUG_MAC80211(priv, "wait transmit/flush all frames\n"); |
Emmanuel Grumbach | 68e8dfd | 2012-04-18 07:28:17 -0700 | [diff] [blame] | 1104 | iwl_trans_wait_tx_queue_empty(priv->trans); |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 1105 | done: |
Johannes Berg | b1eea29 | 2012-03-06 13:30:42 -0800 | [diff] [blame] | 1106 | mutex_unlock(&priv->mutex); |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 1107 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
| 1108 | } |
| 1109 | |
Johannes Berg | aca8626 | 2012-05-14 09:08:50 +0200 | [diff] [blame] | 1110 | static void iwlagn_mac_rssi_callback(struct ieee80211_hw *hw, |
Emmanuel Grumbach | 887da91 | 2013-01-20 17:32:41 +0200 | [diff] [blame] | 1111 | struct ieee80211_vif *vif, |
Johannes Berg | aca8626 | 2012-05-14 09:08:50 +0200 | [diff] [blame] | 1112 | enum ieee80211_rssi_event rssi_event) |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 1113 | { |
Emmanuel Grumbach | d0f76d6 | 2012-02-09 16:08:15 +0200 | [diff] [blame] | 1114 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 1115 | |
| 1116 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
Johannes Berg | b1eea29 | 2012-03-06 13:30:42 -0800 | [diff] [blame] | 1117 | mutex_lock(&priv->mutex); |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 1118 | |
Johannes Berg | 0d8877a | 2013-05-17 10:36:29 +0200 | [diff] [blame] | 1119 | if (priv->lib->bt_params && |
| 1120 | priv->lib->bt_params->advanced_bt_coexist) { |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 1121 | if (rssi_event == RSSI_EVENT_LOW) |
| 1122 | priv->bt_enable_pspoll = true; |
| 1123 | else if (rssi_event == RSSI_EVENT_HIGH) |
| 1124 | priv->bt_enable_pspoll = false; |
| 1125 | |
| 1126 | iwlagn_send_advance_bt_config(priv); |
| 1127 | } else { |
| 1128 | IWL_DEBUG_MAC80211(priv, "Advanced BT coex disabled," |
| 1129 | "ignoring RSSI callback\n"); |
| 1130 | } |
| 1131 | |
Johannes Berg | b1eea29 | 2012-03-06 13:30:42 -0800 | [diff] [blame] | 1132 | mutex_unlock(&priv->mutex); |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 1133 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
| 1134 | } |
| 1135 | |
Johannes Berg | aca8626 | 2012-05-14 09:08:50 +0200 | [diff] [blame] | 1136 | static int iwlagn_mac_set_tim(struct ieee80211_hw *hw, |
| 1137 | struct ieee80211_sta *sta, bool set) |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 1138 | { |
Emmanuel Grumbach | d0f76d6 | 2012-02-09 16:08:15 +0200 | [diff] [blame] | 1139 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 1140 | |
Johannes Berg | 1ee158d | 2012-02-17 10:07:44 -0800 | [diff] [blame] | 1141 | queue_work(priv->workqueue, &priv->beacon_update); |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 1142 | |
| 1143 | return 0; |
| 1144 | } |
| 1145 | |
Johannes Berg | aca8626 | 2012-05-14 09:08:50 +0200 | [diff] [blame] | 1146 | static int iwlagn_mac_conf_tx(struct ieee80211_hw *hw, |
| 1147 | struct ieee80211_vif *vif, u16 queue, |
| 1148 | const struct ieee80211_tx_queue_params *params) |
Wey-Yi Guy | 0b7a4c7 | 2011-11-10 06:55:14 -0800 | [diff] [blame] | 1149 | { |
Emmanuel Grumbach | d0f76d6 | 2012-02-09 16:08:15 +0200 | [diff] [blame] | 1150 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
Wey-Yi Guy | 0b7a4c7 | 2011-11-10 06:55:14 -0800 | [diff] [blame] | 1151 | struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; |
| 1152 | struct iwl_rxon_context *ctx = vif_priv->ctx; |
Wey-Yi Guy | 0b7a4c7 | 2011-11-10 06:55:14 -0800 | [diff] [blame] | 1153 | int q; |
| 1154 | |
| 1155 | if (WARN_ON(!ctx)) |
| 1156 | return -EINVAL; |
| 1157 | |
| 1158 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
| 1159 | |
Don Fry | 8362640 | 2012-03-07 09:52:37 -0800 | [diff] [blame] | 1160 | if (!iwl_is_ready_rf(priv)) { |
Wey-Yi Guy | 0b7a4c7 | 2011-11-10 06:55:14 -0800 | [diff] [blame] | 1161 | IWL_DEBUG_MAC80211(priv, "leave - RF not ready\n"); |
| 1162 | return -EIO; |
| 1163 | } |
| 1164 | |
| 1165 | if (queue >= AC_NUM) { |
| 1166 | IWL_DEBUG_MAC80211(priv, "leave - queue >= AC_NUM %d\n", queue); |
| 1167 | return 0; |
| 1168 | } |
| 1169 | |
| 1170 | q = AC_NUM - 1 - queue; |
| 1171 | |
Johannes Berg | b1eea29 | 2012-03-06 13:30:42 -0800 | [diff] [blame] | 1172 | mutex_lock(&priv->mutex); |
Wey-Yi Guy | 0b7a4c7 | 2011-11-10 06:55:14 -0800 | [diff] [blame] | 1173 | |
| 1174 | ctx->qos_data.def_qos_parm.ac[q].cw_min = |
| 1175 | cpu_to_le16(params->cw_min); |
| 1176 | ctx->qos_data.def_qos_parm.ac[q].cw_max = |
| 1177 | cpu_to_le16(params->cw_max); |
| 1178 | ctx->qos_data.def_qos_parm.ac[q].aifsn = params->aifs; |
| 1179 | ctx->qos_data.def_qos_parm.ac[q].edca_txop = |
| 1180 | cpu_to_le16((params->txop * 32)); |
| 1181 | |
| 1182 | ctx->qos_data.def_qos_parm.ac[q].reserved1 = 0; |
| 1183 | |
Johannes Berg | b1eea29 | 2012-03-06 13:30:42 -0800 | [diff] [blame] | 1184 | mutex_unlock(&priv->mutex); |
Wey-Yi Guy | 0b7a4c7 | 2011-11-10 06:55:14 -0800 | [diff] [blame] | 1185 | |
| 1186 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
| 1187 | return 0; |
| 1188 | } |
| 1189 | |
Johannes Berg | aca8626 | 2012-05-14 09:08:50 +0200 | [diff] [blame] | 1190 | static int iwlagn_mac_tx_last_beacon(struct ieee80211_hw *hw) |
Wey-Yi Guy | 0b7a4c7 | 2011-11-10 06:55:14 -0800 | [diff] [blame] | 1191 | { |
Emmanuel Grumbach | d0f76d6 | 2012-02-09 16:08:15 +0200 | [diff] [blame] | 1192 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
Wey-Yi Guy | 0b7a4c7 | 2011-11-10 06:55:14 -0800 | [diff] [blame] | 1193 | |
| 1194 | return priv->ibss_manager == IWL_IBSS_MANAGER; |
| 1195 | } |
| 1196 | |
| 1197 | static int iwl_set_mode(struct iwl_priv *priv, struct iwl_rxon_context *ctx) |
| 1198 | { |
| 1199 | iwl_connection_init_rx_config(priv, ctx); |
| 1200 | |
| 1201 | iwlagn_set_rxon_chain(priv, ctx); |
| 1202 | |
| 1203 | return iwlagn_commit_rxon(priv, ctx); |
| 1204 | } |
| 1205 | |
Johannes Berg | aca8626 | 2012-05-14 09:08:50 +0200 | [diff] [blame] | 1206 | static int iwl_setup_interface(struct iwl_priv *priv, |
| 1207 | struct iwl_rxon_context *ctx) |
Wey-Yi Guy | 0b7a4c7 | 2011-11-10 06:55:14 -0800 | [diff] [blame] | 1208 | { |
| 1209 | struct ieee80211_vif *vif = ctx->vif; |
Johannes Berg | 1479177 | 2012-04-17 07:39:03 -0700 | [diff] [blame] | 1210 | int err, ac; |
Wey-Yi Guy | 0b7a4c7 | 2011-11-10 06:55:14 -0800 | [diff] [blame] | 1211 | |
Johannes Berg | b1eea29 | 2012-03-06 13:30:42 -0800 | [diff] [blame] | 1212 | lockdep_assert_held(&priv->mutex); |
Wey-Yi Guy | 0b7a4c7 | 2011-11-10 06:55:14 -0800 | [diff] [blame] | 1213 | |
| 1214 | /* |
| 1215 | * This variable will be correct only when there's just |
| 1216 | * a single context, but all code using it is for hardware |
| 1217 | * that supports only one context. |
| 1218 | */ |
| 1219 | priv->iw_mode = vif->type; |
| 1220 | |
| 1221 | ctx->is_active = true; |
| 1222 | |
| 1223 | err = iwl_set_mode(priv, ctx); |
| 1224 | if (err) { |
| 1225 | if (!ctx->always_active) |
| 1226 | ctx->is_active = false; |
| 1227 | return err; |
| 1228 | } |
| 1229 | |
Johannes Berg | 0d8877a | 2013-05-17 10:36:29 +0200 | [diff] [blame] | 1230 | if (priv->lib->bt_params && priv->lib->bt_params->advanced_bt_coexist && |
Wey-Yi Guy | 0b7a4c7 | 2011-11-10 06:55:14 -0800 | [diff] [blame] | 1231 | vif->type == NL80211_IFTYPE_ADHOC) { |
| 1232 | /* |
| 1233 | * pretend to have high BT traffic as long as we |
| 1234 | * are operating in IBSS mode, as this will cause |
| 1235 | * the rate scaling etc. to behave as intended. |
| 1236 | */ |
| 1237 | priv->bt_traffic_load = IWL_BT_COEX_TRAFFIC_LOAD_HIGH; |
| 1238 | } |
| 1239 | |
Johannes Berg | 1479177 | 2012-04-17 07:39:03 -0700 | [diff] [blame] | 1240 | /* set up queue mappings */ |
| 1241 | for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) |
| 1242 | vif->hw_queue[ac] = ctx->ac_to_queue[ac]; |
| 1243 | |
| 1244 | if (vif->type == NL80211_IFTYPE_AP) |
| 1245 | vif->cab_queue = ctx->mcast_queue; |
| 1246 | else |
| 1247 | vif->cab_queue = IEEE80211_INVAL_HW_QUEUE; |
| 1248 | |
Wey-Yi Guy | 0b7a4c7 | 2011-11-10 06:55:14 -0800 | [diff] [blame] | 1249 | return 0; |
| 1250 | } |
| 1251 | |
| 1252 | static int iwlagn_mac_add_interface(struct ieee80211_hw *hw, |
Johannes Berg | 1479177 | 2012-04-17 07:39:03 -0700 | [diff] [blame] | 1253 | struct ieee80211_vif *vif) |
Wey-Yi Guy | 0b7a4c7 | 2011-11-10 06:55:14 -0800 | [diff] [blame] | 1254 | { |
Emmanuel Grumbach | d0f76d6 | 2012-02-09 16:08:15 +0200 | [diff] [blame] | 1255 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
Wey-Yi Guy | 0b7a4c7 | 2011-11-10 06:55:14 -0800 | [diff] [blame] | 1256 | struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; |
| 1257 | struct iwl_rxon_context *tmp, *ctx = NULL; |
| 1258 | int err; |
| 1259 | enum nl80211_iftype viftype = ieee80211_vif_type_p2p(vif); |
Stanislaw Gruszka | 8db4c7e | 2012-04-18 08:01:15 -0700 | [diff] [blame] | 1260 | bool reset = false; |
Wey-Yi Guy | 0b7a4c7 | 2011-11-10 06:55:14 -0800 | [diff] [blame] | 1261 | |
| 1262 | IWL_DEBUG_MAC80211(priv, "enter: type %d, addr %pM\n", |
| 1263 | viftype, vif->addr); |
| 1264 | |
Johannes Berg | b1eea29 | 2012-03-06 13:30:42 -0800 | [diff] [blame] | 1265 | mutex_lock(&priv->mutex); |
Wey-Yi Guy | 0b7a4c7 | 2011-11-10 06:55:14 -0800 | [diff] [blame] | 1266 | |
Don Fry | 8362640 | 2012-03-07 09:52:37 -0800 | [diff] [blame] | 1267 | if (!iwl_is_ready_rf(priv)) { |
Wey-Yi Guy | 0b7a4c7 | 2011-11-10 06:55:14 -0800 | [diff] [blame] | 1268 | IWL_WARN(priv, "Try to add interface when device not ready\n"); |
| 1269 | err = -EINVAL; |
| 1270 | goto out; |
| 1271 | } |
| 1272 | |
| 1273 | for_each_context(priv, tmp) { |
| 1274 | u32 possible_modes = |
| 1275 | tmp->interface_modes | tmp->exclusive_interface_modes; |
| 1276 | |
| 1277 | if (tmp->vif) { |
Stanislaw Gruszka | 8db4c7e | 2012-04-18 08:01:15 -0700 | [diff] [blame] | 1278 | /* On reset we need to add the same interface again */ |
| 1279 | if (tmp->vif == vif) { |
| 1280 | reset = true; |
| 1281 | ctx = tmp; |
| 1282 | break; |
| 1283 | } |
| 1284 | |
Wey-Yi Guy | 0b7a4c7 | 2011-11-10 06:55:14 -0800 | [diff] [blame] | 1285 | /* check if this busy context is exclusive */ |
| 1286 | if (tmp->exclusive_interface_modes & |
| 1287 | BIT(tmp->vif->type)) { |
| 1288 | err = -EINVAL; |
| 1289 | goto out; |
| 1290 | } |
| 1291 | continue; |
| 1292 | } |
| 1293 | |
| 1294 | if (!(possible_modes & BIT(viftype))) |
| 1295 | continue; |
| 1296 | |
| 1297 | /* have maybe usable context w/o interface */ |
| 1298 | ctx = tmp; |
| 1299 | break; |
| 1300 | } |
| 1301 | |
| 1302 | if (!ctx) { |
| 1303 | err = -EOPNOTSUPP; |
| 1304 | goto out; |
| 1305 | } |
| 1306 | |
| 1307 | vif_priv->ctx = ctx; |
| 1308 | ctx->vif = vif; |
| 1309 | |
Johannes Berg | 04baaa2 | 2012-11-13 21:28:44 +0100 | [diff] [blame] | 1310 | /* |
| 1311 | * In SNIFFER device type, the firmware reports the FCS to |
| 1312 | * the host, rather than snipping it off. Unfortunately, |
| 1313 | * mac80211 doesn't (yet) provide a per-packet flag for |
| 1314 | * this, so that we have to set the hardware flag based |
| 1315 | * on the interfaces added. As the monitor interface can |
| 1316 | * only be present by itself, and will be removed before |
| 1317 | * other interfaces are added, this is safe. |
| 1318 | */ |
| 1319 | if (vif->type == NL80211_IFTYPE_MONITOR) |
| 1320 | priv->hw->flags |= IEEE80211_HW_RX_INCLUDES_FCS; |
| 1321 | else |
| 1322 | priv->hw->flags &= ~IEEE80211_HW_RX_INCLUDES_FCS; |
| 1323 | |
Wey-Yi Guy | 0b7a4c7 | 2011-11-10 06:55:14 -0800 | [diff] [blame] | 1324 | err = iwl_setup_interface(priv, ctx); |
Stanislaw Gruszka | 8db4c7e | 2012-04-18 08:01:15 -0700 | [diff] [blame] | 1325 | if (!err || reset) |
Wey-Yi Guy | 0b7a4c7 | 2011-11-10 06:55:14 -0800 | [diff] [blame] | 1326 | goto out; |
| 1327 | |
| 1328 | ctx->vif = NULL; |
| 1329 | priv->iw_mode = NL80211_IFTYPE_STATION; |
| 1330 | out: |
Johannes Berg | b1eea29 | 2012-03-06 13:30:42 -0800 | [diff] [blame] | 1331 | mutex_unlock(&priv->mutex); |
Wey-Yi Guy | 0b7a4c7 | 2011-11-10 06:55:14 -0800 | [diff] [blame] | 1332 | |
| 1333 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
| 1334 | return err; |
| 1335 | } |
| 1336 | |
Johannes Berg | aca8626 | 2012-05-14 09:08:50 +0200 | [diff] [blame] | 1337 | static void iwl_teardown_interface(struct iwl_priv *priv, |
| 1338 | struct ieee80211_vif *vif, |
| 1339 | bool mode_change) |
Wey-Yi Guy | 0b7a4c7 | 2011-11-10 06:55:14 -0800 | [diff] [blame] | 1340 | { |
| 1341 | struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif); |
| 1342 | |
Johannes Berg | b1eea29 | 2012-03-06 13:30:42 -0800 | [diff] [blame] | 1343 | lockdep_assert_held(&priv->mutex); |
Wey-Yi Guy | 0b7a4c7 | 2011-11-10 06:55:14 -0800 | [diff] [blame] | 1344 | |
| 1345 | if (priv->scan_vif == vif) { |
| 1346 | iwl_scan_cancel_timeout(priv, 200); |
| 1347 | iwl_force_scan_end(priv); |
| 1348 | } |
| 1349 | |
| 1350 | if (!mode_change) { |
| 1351 | iwl_set_mode(priv, ctx); |
| 1352 | if (!ctx->always_active) |
| 1353 | ctx->is_active = false; |
| 1354 | } |
| 1355 | |
| 1356 | /* |
| 1357 | * When removing the IBSS interface, overwrite the |
| 1358 | * BT traffic load with the stored one from the last |
| 1359 | * notification, if any. If this is a device that |
| 1360 | * doesn't implement this, this has no effect since |
| 1361 | * both values are the same and zero. |
| 1362 | */ |
| 1363 | if (vif->type == NL80211_IFTYPE_ADHOC) |
| 1364 | priv->bt_traffic_load = priv->last_bt_traffic_load; |
| 1365 | } |
| 1366 | |
| 1367 | static void iwlagn_mac_remove_interface(struct ieee80211_hw *hw, |
| 1368 | struct ieee80211_vif *vif) |
| 1369 | { |
Emmanuel Grumbach | d0f76d6 | 2012-02-09 16:08:15 +0200 | [diff] [blame] | 1370 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
Wey-Yi Guy | 0b7a4c7 | 2011-11-10 06:55:14 -0800 | [diff] [blame] | 1371 | struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif); |
| 1372 | |
| 1373 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
| 1374 | |
Johannes Berg | b1eea29 | 2012-03-06 13:30:42 -0800 | [diff] [blame] | 1375 | mutex_lock(&priv->mutex); |
Wey-Yi Guy | 0b7a4c7 | 2011-11-10 06:55:14 -0800 | [diff] [blame] | 1376 | |
| 1377 | if (WARN_ON(ctx->vif != vif)) { |
| 1378 | struct iwl_rxon_context *tmp; |
| 1379 | IWL_ERR(priv, "ctx->vif = %p, vif = %p\n", ctx->vif, vif); |
| 1380 | for_each_context(priv, tmp) |
| 1381 | IWL_ERR(priv, "\tID = %d:\tctx = %p\tctx->vif = %p\n", |
| 1382 | tmp->ctxid, tmp, tmp->vif); |
| 1383 | } |
| 1384 | ctx->vif = NULL; |
| 1385 | |
| 1386 | iwl_teardown_interface(priv, vif, false); |
| 1387 | |
Johannes Berg | b1eea29 | 2012-03-06 13:30:42 -0800 | [diff] [blame] | 1388 | mutex_unlock(&priv->mutex); |
Wey-Yi Guy | 0b7a4c7 | 2011-11-10 06:55:14 -0800 | [diff] [blame] | 1389 | |
| 1390 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
| 1391 | |
| 1392 | } |
| 1393 | |
| 1394 | static int iwlagn_mac_change_interface(struct ieee80211_hw *hw, |
Johannes Berg | e75dac9 | 2012-06-20 11:47:42 +0200 | [diff] [blame] | 1395 | struct ieee80211_vif *vif, |
| 1396 | enum nl80211_iftype newtype, bool newp2p) |
Wey-Yi Guy | 0b7a4c7 | 2011-11-10 06:55:14 -0800 | [diff] [blame] | 1397 | { |
Emmanuel Grumbach | d0f76d6 | 2012-02-09 16:08:15 +0200 | [diff] [blame] | 1398 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
Johannes Berg | e75dac9 | 2012-06-20 11:47:42 +0200 | [diff] [blame] | 1399 | struct iwl_rxon_context *ctx, *tmp; |
Wey-Yi Guy | 0b7a4c7 | 2011-11-10 06:55:14 -0800 | [diff] [blame] | 1400 | enum nl80211_iftype newviftype = newtype; |
| 1401 | u32 interface_modes; |
| 1402 | int err; |
| 1403 | |
| 1404 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
| 1405 | |
| 1406 | newtype = ieee80211_iftype_p2p(newtype, newp2p); |
| 1407 | |
Johannes Berg | b1eea29 | 2012-03-06 13:30:42 -0800 | [diff] [blame] | 1408 | mutex_lock(&priv->mutex); |
Wey-Yi Guy | 0b7a4c7 | 2011-11-10 06:55:14 -0800 | [diff] [blame] | 1409 | |
Johannes Berg | e75dac9 | 2012-06-20 11:47:42 +0200 | [diff] [blame] | 1410 | ctx = iwl_rxon_ctx_from_vif(vif); |
| 1411 | |
| 1412 | /* |
| 1413 | * To simplify this code, only support changes on the |
| 1414 | * BSS context. The PAN context is usually reassigned |
| 1415 | * by creating/removing P2P interfaces anyway. |
| 1416 | */ |
| 1417 | if (ctx->ctxid != IWL_RXON_CTX_BSS) { |
| 1418 | err = -EBUSY; |
| 1419 | goto out; |
| 1420 | } |
| 1421 | |
Don Fry | 8362640 | 2012-03-07 09:52:37 -0800 | [diff] [blame] | 1422 | if (!ctx->vif || !iwl_is_ready_rf(priv)) { |
Wey-Yi Guy | 0b7a4c7 | 2011-11-10 06:55:14 -0800 | [diff] [blame] | 1423 | /* |
| 1424 | * Huh? But wait ... this can maybe happen when |
| 1425 | * we're in the middle of a firmware restart! |
| 1426 | */ |
| 1427 | err = -EBUSY; |
| 1428 | goto out; |
| 1429 | } |
| 1430 | |
Johannes Berg | e75dac9 | 2012-06-20 11:47:42 +0200 | [diff] [blame] | 1431 | /* Check if the switch is supported in the same context */ |
Wey-Yi Guy | 0b7a4c7 | 2011-11-10 06:55:14 -0800 | [diff] [blame] | 1432 | interface_modes = ctx->interface_modes | ctx->exclusive_interface_modes; |
Wey-Yi Guy | 0b7a4c7 | 2011-11-10 06:55:14 -0800 | [diff] [blame] | 1433 | if (!(interface_modes & BIT(newtype))) { |
| 1434 | err = -EBUSY; |
| 1435 | goto out; |
| 1436 | } |
| 1437 | |
Wey-Yi Guy | 0b7a4c7 | 2011-11-10 06:55:14 -0800 | [diff] [blame] | 1438 | if (ctx->exclusive_interface_modes & BIT(newtype)) { |
| 1439 | for_each_context(priv, tmp) { |
| 1440 | if (ctx == tmp) |
| 1441 | continue; |
| 1442 | |
Johannes Berg | e75dac9 | 2012-06-20 11:47:42 +0200 | [diff] [blame] | 1443 | if (!tmp->is_active) |
Wey-Yi Guy | 0b7a4c7 | 2011-11-10 06:55:14 -0800 | [diff] [blame] | 1444 | continue; |
| 1445 | |
| 1446 | /* |
| 1447 | * The current mode switch would be exclusive, but |
| 1448 | * another context is active ... refuse the switch. |
| 1449 | */ |
| 1450 | err = -EBUSY; |
| 1451 | goto out; |
| 1452 | } |
| 1453 | } |
| 1454 | |
| 1455 | /* success */ |
| 1456 | iwl_teardown_interface(priv, vif, true); |
| 1457 | vif->type = newviftype; |
| 1458 | vif->p2p = newp2p; |
| 1459 | err = iwl_setup_interface(priv, ctx); |
| 1460 | WARN_ON(err); |
| 1461 | /* |
| 1462 | * We've switched internally, but submitting to the |
| 1463 | * device may have failed for some reason. Mask this |
| 1464 | * error, because otherwise mac80211 will not switch |
| 1465 | * (and set the interface type back) and we'll be |
| 1466 | * out of sync with it. |
| 1467 | */ |
| 1468 | err = 0; |
| 1469 | |
| 1470 | out: |
Johannes Berg | b1eea29 | 2012-03-06 13:30:42 -0800 | [diff] [blame] | 1471 | mutex_unlock(&priv->mutex); |
Wey-Yi Guy | 0b7a4c7 | 2011-11-10 06:55:14 -0800 | [diff] [blame] | 1472 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
| 1473 | |
| 1474 | return err; |
| 1475 | } |
| 1476 | |
Johannes Berg | aca8626 | 2012-05-14 09:08:50 +0200 | [diff] [blame] | 1477 | static int iwlagn_mac_hw_scan(struct ieee80211_hw *hw, |
| 1478 | struct ieee80211_vif *vif, |
| 1479 | struct cfg80211_scan_request *req) |
Wey-Yi Guy | ba4c531 | 2011-11-10 06:55:15 -0800 | [diff] [blame] | 1480 | { |
Emmanuel Grumbach | d0f76d6 | 2012-02-09 16:08:15 +0200 | [diff] [blame] | 1481 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
Wey-Yi Guy | ba4c531 | 2011-11-10 06:55:15 -0800 | [diff] [blame] | 1482 | int ret; |
| 1483 | |
| 1484 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
| 1485 | |
| 1486 | if (req->n_channels == 0) |
| 1487 | return -EINVAL; |
| 1488 | |
Johannes Berg | b1eea29 | 2012-03-06 13:30:42 -0800 | [diff] [blame] | 1489 | mutex_lock(&priv->mutex); |
Wey-Yi Guy | ba4c531 | 2011-11-10 06:55:15 -0800 | [diff] [blame] | 1490 | |
| 1491 | /* |
| 1492 | * If an internal scan is in progress, just set |
| 1493 | * up the scan_request as per above. |
| 1494 | */ |
| 1495 | if (priv->scan_type != IWL_SCAN_NORMAL) { |
| 1496 | IWL_DEBUG_SCAN(priv, |
| 1497 | "SCAN request during internal scan - defer\n"); |
| 1498 | priv->scan_request = req; |
| 1499 | priv->scan_vif = vif; |
| 1500 | ret = 0; |
| 1501 | } else { |
| 1502 | priv->scan_request = req; |
| 1503 | priv->scan_vif = vif; |
| 1504 | /* |
| 1505 | * mac80211 will only ask for one band at a time |
| 1506 | * so using channels[0] here is ok |
| 1507 | */ |
| 1508 | ret = iwl_scan_initiate(priv, vif, IWL_SCAN_NORMAL, |
| 1509 | req->channels[0]->band); |
| 1510 | if (ret) { |
| 1511 | priv->scan_request = NULL; |
| 1512 | priv->scan_vif = NULL; |
| 1513 | } |
| 1514 | } |
| 1515 | |
| 1516 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
| 1517 | |
Johannes Berg | b1eea29 | 2012-03-06 13:30:42 -0800 | [diff] [blame] | 1518 | mutex_unlock(&priv->mutex); |
Wey-Yi Guy | ba4c531 | 2011-11-10 06:55:15 -0800 | [diff] [blame] | 1519 | |
| 1520 | return ret; |
| 1521 | } |
| 1522 | |
Wey-Yi Guy | 76b2933 | 2011-11-10 06:55:16 -0800 | [diff] [blame] | 1523 | static void iwl_sta_modify_ps_wake(struct iwl_priv *priv, int sta_id) |
| 1524 | { |
Johannes Berg | 9451ca1 | 2012-03-05 11:24:23 -0800 | [diff] [blame] | 1525 | struct iwl_addsta_cmd cmd = { |
| 1526 | .mode = STA_CONTROL_MODIFY_MSK, |
| 1527 | .station_flags_msk = STA_FLG_PWR_SAVE_MSK, |
| 1528 | .sta.sta_id = sta_id, |
| 1529 | }; |
Wey-Yi Guy | 76b2933 | 2011-11-10 06:55:16 -0800 | [diff] [blame] | 1530 | |
Johannes Berg | 9451ca1 | 2012-03-05 11:24:23 -0800 | [diff] [blame] | 1531 | iwl_send_add_sta(priv, &cmd, CMD_ASYNC); |
Wey-Yi Guy | 76b2933 | 2011-11-10 06:55:16 -0800 | [diff] [blame] | 1532 | } |
| 1533 | |
Johannes Berg | aca8626 | 2012-05-14 09:08:50 +0200 | [diff] [blame] | 1534 | static void iwlagn_mac_sta_notify(struct ieee80211_hw *hw, |
| 1535 | struct ieee80211_vif *vif, |
| 1536 | enum sta_notify_cmd cmd, |
| 1537 | struct ieee80211_sta *sta) |
Wey-Yi Guy | 76b2933 | 2011-11-10 06:55:16 -0800 | [diff] [blame] | 1538 | { |
Emmanuel Grumbach | d0f76d6 | 2012-02-09 16:08:15 +0200 | [diff] [blame] | 1539 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
Wey-Yi Guy | 76b2933 | 2011-11-10 06:55:16 -0800 | [diff] [blame] | 1540 | struct iwl_station_priv *sta_priv = (void *)sta->drv_priv; |
| 1541 | int sta_id; |
| 1542 | |
| 1543 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
| 1544 | |
| 1545 | switch (cmd) { |
| 1546 | case STA_NOTIFY_SLEEP: |
| 1547 | WARN_ON(!sta_priv->client); |
| 1548 | sta_priv->asleep = true; |
| 1549 | if (atomic_read(&sta_priv->pending_frames) > 0) |
| 1550 | ieee80211_sta_block_awake(hw, sta, true); |
| 1551 | break; |
| 1552 | case STA_NOTIFY_AWAKE: |
| 1553 | WARN_ON(!sta_priv->client); |
| 1554 | if (!sta_priv->asleep) |
| 1555 | break; |
| 1556 | sta_priv->asleep = false; |
| 1557 | sta_id = iwl_sta_id(sta); |
| 1558 | if (sta_id != IWL_INVALID_STATION) |
| 1559 | iwl_sta_modify_ps_wake(priv, sta_id); |
| 1560 | break; |
| 1561 | default: |
| 1562 | break; |
| 1563 | } |
| 1564 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
| 1565 | } |
| 1566 | |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 1567 | struct ieee80211_ops iwlagn_hw_ops = { |
| 1568 | .tx = iwlagn_mac_tx, |
| 1569 | .start = iwlagn_mac_start, |
| 1570 | .stop = iwlagn_mac_stop, |
| 1571 | #ifdef CONFIG_PM_SLEEP |
| 1572 | .suspend = iwlagn_mac_suspend, |
| 1573 | .resume = iwlagn_mac_resume, |
Johannes Berg | 76ed2ed | 2012-05-16 22:54:25 +0200 | [diff] [blame] | 1574 | .set_wakeup = iwlagn_mac_set_wakeup, |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 1575 | #endif |
| 1576 | .add_interface = iwlagn_mac_add_interface, |
| 1577 | .remove_interface = iwlagn_mac_remove_interface, |
| 1578 | .change_interface = iwlagn_mac_change_interface, |
| 1579 | .config = iwlagn_mac_config, |
| 1580 | .configure_filter = iwlagn_configure_filter, |
| 1581 | .set_key = iwlagn_mac_set_key, |
| 1582 | .update_tkip_key = iwlagn_mac_update_tkip_key, |
| 1583 | .set_rekey_data = iwlagn_mac_set_rekey_data, |
| 1584 | .conf_tx = iwlagn_mac_conf_tx, |
| 1585 | .bss_info_changed = iwlagn_bss_info_changed, |
| 1586 | .ampdu_action = iwlagn_mac_ampdu_action, |
| 1587 | .hw_scan = iwlagn_mac_hw_scan, |
| 1588 | .sta_notify = iwlagn_mac_sta_notify, |
Johannes Berg | fb5fe5b | 2012-03-05 11:24:29 -0800 | [diff] [blame] | 1589 | .sta_state = iwlagn_mac_sta_state, |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 1590 | .channel_switch = iwlagn_mac_channel_switch, |
| 1591 | .flush = iwlagn_mac_flush, |
| 1592 | .tx_last_beacon = iwlagn_mac_tx_last_beacon, |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 1593 | .rssi_callback = iwlagn_mac_rssi_callback, |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 1594 | .set_tim = iwlagn_mac_set_tim, |
| 1595 | }; |
| 1596 | |
| 1597 | /* This function both allocates and initializes hw and priv. */ |
| 1598 | struct ieee80211_hw *iwl_alloc_all(void) |
| 1599 | { |
| 1600 | struct iwl_priv *priv; |
Emmanuel Grumbach | d0f76d6 | 2012-02-09 16:08:15 +0200 | [diff] [blame] | 1601 | struct iwl_op_mode *op_mode; |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 1602 | /* mac80211 allocates memory for this device instance, including |
| 1603 | * space for this driver's private structure */ |
| 1604 | struct ieee80211_hw *hw; |
| 1605 | |
Emmanuel Grumbach | d0f76d6 | 2012-02-09 16:08:15 +0200 | [diff] [blame] | 1606 | hw = ieee80211_alloc_hw(sizeof(struct iwl_priv) + |
| 1607 | sizeof(struct iwl_op_mode), &iwlagn_hw_ops); |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 1608 | if (!hw) |
| 1609 | goto out; |
| 1610 | |
Emmanuel Grumbach | d0f76d6 | 2012-02-09 16:08:15 +0200 | [diff] [blame] | 1611 | op_mode = hw->priv; |
| 1612 | priv = IWL_OP_MODE_GET_DVM(op_mode); |
Wey-Yi Guy | 7335613 | 2011-11-10 06:55:11 -0800 | [diff] [blame] | 1613 | priv->hw = hw; |
| 1614 | |
| 1615 | out: |
| 1616 | return hw; |
| 1617 | } |