drivers/net/wireless/iwlwifi/mvm/power.c

   1 /******************************************************************************
   2  *
   3  * This file is provided under a dual BSD/GPLv2 license.  When using or
   4  * redistributing this file, you may do so under either license.
   5  *
   6  * GPL LICENSE SUMMARY
   7  *
   8  * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved.
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of version 2 of the GNU General Public License as
  12  * published by the Free Software Foundation.
  13  *
  14  * This program is distributed in the hope that it will be useful, but
  15  * WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
  22  * USA
  23  *
  24  * The full GNU General Public License is included in this distribution
  25  * in the file called COPYING.
  26  *
  27  * Contact Information:
  28  *  Intel Linux Wireless <ilw@linux.intel.com>
  29  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  30  *
  31  * BSD LICENSE
  32  *
  33  * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved.
  34  * All rights reserved.
  35  *
  36  * Redistribution and use in source and binary forms, with or without
  37  * modification, are permitted provided that the following conditions
  38  * are met:
  39  *
  40  *  * Redistributions of source code must retain the above copyright
  41  *    notice, this list of conditions and the following disclaimer.
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  43  *    notice, this list of conditions and the following disclaimer in
  44  *    the documentation and/or other materials provided with the
  45  *    distribution.
  46  *  * Neither the name Intel Corporation nor the names of its
  47  *    contributors may be used to endorse or promote products derived
  48  *    from this software without specific prior written permission.
  49  *
  50  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  51  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  52  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  53  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  54  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  55  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  56  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  57  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  58  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  59  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  60  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  61  *
  62  *****************************************************************************/
  63
  64 #include <linux/kernel.h>
  65 #include <linux/module.h>
  66 #include <linux/slab.h>
  67 #include <linux/init.h>
  68
  69 #include <net/mac80211.h>
  70
  71 #include "iwl-debug.h"
  72 #include "mvm.h"
  73 #include "iwl-modparams.h"
  74 #include "fw-api-power.h"
  75
  76 #define POWER_KEEP_ALIVE_PERIOD_SEC    25
  77
  78 int iwl_mvm_beacon_filter_send_cmd(struct iwl_mvm *mvm,
  79                                    struct iwl_beacon_filter_cmd *cmd)
  80 {
  81         int ret;
  82
  83         ret = iwl_mvm_send_cmd_pdu(mvm, REPLY_BEACON_FILTERING_CMD, CMD_SYNC,
  84                                    sizeof(struct iwl_beacon_filter_cmd), cmd);
  85
  86         if (!ret) {
  87                 IWL_DEBUG_POWER(mvm, "ba_enable_beacon_abort is: %d\n",
  88                                 le32_to_cpu(cmd->ba_enable_beacon_abort));
  89                 IWL_DEBUG_POWER(mvm, "ba_escape_timer is: %d\n",
  90                                 le32_to_cpu(cmd->ba_escape_timer));
  91                 IWL_DEBUG_POWER(mvm, "bf_debug_flag is: %d\n",
  92                                 le32_to_cpu(cmd->bf_debug_flag));
  93                 IWL_DEBUG_POWER(mvm, "bf_enable_beacon_filter is: %d\n",
  94                                 le32_to_cpu(cmd->bf_enable_beacon_filter));
  95                 IWL_DEBUG_POWER(mvm, "bf_energy_delta is: %d\n",
  96                                 le32_to_cpu(cmd->bf_energy_delta));
  97                 IWL_DEBUG_POWER(mvm, "bf_escape_timer is: %d\n",
  98                                 le32_to_cpu(cmd->bf_escape_timer));
  99                 IWL_DEBUG_POWER(mvm, "bf_roaming_energy_delta is: %d\n",
 100                                 le32_to_cpu(cmd->bf_roaming_energy_delta));
 101                 IWL_DEBUG_POWER(mvm, "bf_roaming_state is: %d\n",
 102                                 le32_to_cpu(cmd->bf_roaming_state));
 103                 IWL_DEBUG_POWER(mvm, "bf_temp_threshold is: %d\n",
 104                                 le32_to_cpu(cmd->bf_temp_threshold));
 105                 IWL_DEBUG_POWER(mvm, "bf_temp_fast_filter is: %d\n",
 106                                 le32_to_cpu(cmd->bf_temp_fast_filter));
 107                 IWL_DEBUG_POWER(mvm, "bf_temp_slow_filter is: %d\n",
 108                                 le32_to_cpu(cmd->bf_temp_slow_filter));
 109         }
 110         return ret;
 111 }
 112
 113 static
 114 void iwl_mvm_beacon_filter_set_cqm_params(struct iwl_mvm *mvm,
 115                                           struct ieee80211_vif *vif,
 116                                           struct iwl_beacon_filter_cmd *cmd)
 117 {
 118         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 119
 120         if (vif->bss_conf.cqm_rssi_thold) {
 121                 cmd->bf_energy_delta =
 122                         cpu_to_le32(vif->bss_conf.cqm_rssi_hyst);
 123                 /* fw uses an absolute value for this */
 124                 cmd->bf_roaming_state =
 125                         cpu_to_le32(-vif->bss_conf.cqm_rssi_thold);
 126         }
 127         cmd->ba_enable_beacon_abort = cpu_to_le32(mvmvif->bf_data.ba_enabled);
 128 }
 129
 130 int iwl_mvm_update_beacon_abort(struct iwl_mvm *mvm,
 131                                 struct ieee80211_vif *vif, bool enable)
 132 {
 133         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 134         struct iwl_beacon_filter_cmd cmd = {
 135                 IWL_BF_CMD_CONFIG_DEFAULTS,
 136                 .bf_enable_beacon_filter = cpu_to_le32(1),
 137                 .ba_enable_beacon_abort = cpu_to_le32(enable),
 138         };
 139
 140         if (!mvmvif->bf_data.bf_enabled)
 141                 return 0;
 142
 143         if (mvm->cur_ucode == IWL_UCODE_WOWLAN)
 144                 cmd.ba_escape_timer = cpu_to_le32(IWL_BA_ESCAPE_TIMER_D3);
 145
 146         mvmvif->bf_data.ba_enabled = enable;
 147         iwl_mvm_beacon_filter_set_cqm_params(mvm, vif, &cmd);
 148         iwl_mvm_beacon_filter_debugfs_parameters(vif, &cmd);
 149         return iwl_mvm_beacon_filter_send_cmd(mvm, &cmd);
 150 }
 151
 152 static void iwl_mvm_power_log(struct iwl_mvm *mvm,
 153                               struct iwl_mac_power_cmd *cmd)
 154 {
 155         IWL_DEBUG_POWER(mvm,
 156                         "Sending power table command on mac id 0x%X for power level %d, flags = 0x%X\n",
 157                         cmd->id_and_color, iwlmvm_mod_params.power_scheme,
 158                         le16_to_cpu(cmd->flags));
 159         IWL_DEBUG_POWER(mvm, "Keep alive = %u sec\n",
 160                         le16_to_cpu(cmd->keep_alive_seconds));
 161
 162         if (!(cmd->flags & cpu_to_le16(POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK))) {
 163                 IWL_DEBUG_POWER(mvm, "Disable power management\n");
 164                 return;
 165         }
 166
 167         IWL_DEBUG_POWER(mvm, "Rx timeout = %u usec\n",
 168                         le32_to_cpu(cmd->rx_data_timeout));
 169         IWL_DEBUG_POWER(mvm, "Tx timeout = %u usec\n",
 170                         le32_to_cpu(cmd->tx_data_timeout));
 171         if (cmd->flags & cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK))
 172                 IWL_DEBUG_POWER(mvm, "DTIM periods to skip = %u\n",
 173                                 cmd->skip_dtim_periods);
 174         if (cmd->flags & cpu_to_le16(POWER_FLAGS_LPRX_ENA_MSK))
 175                 IWL_DEBUG_POWER(mvm, "LP RX RSSI threshold = %u\n",
 176                                 cmd->lprx_rssi_threshold);
 177         if (cmd->flags & cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK)) {
 178                 IWL_DEBUG_POWER(mvm, "uAPSD enabled\n");
 179                 IWL_DEBUG_POWER(mvm, "Rx timeout (uAPSD) = %u usec\n",
 180                                 le32_to_cpu(cmd->rx_data_timeout_uapsd));
 181                 IWL_DEBUG_POWER(mvm, "Tx timeout (uAPSD) = %u usec\n",
 182                                 le32_to_cpu(cmd->tx_data_timeout_uapsd));
 183                 IWL_DEBUG_POWER(mvm, "QNDP TID = %d\n", cmd->qndp_tid);
 184                 IWL_DEBUG_POWER(mvm, "ACs flags = 0x%x\n", cmd->uapsd_ac_flags);
 185                 IWL_DEBUG_POWER(mvm, "Max SP = %d\n", cmd->uapsd_max_sp);
 186         }
 187 }
 188
 189 static void iwl_mvm_power_build_cmd(struct iwl_mvm *mvm,
 190                                     struct ieee80211_vif *vif,
 191                                     struct iwl_mac_power_cmd *cmd)
 192 {
 193         struct ieee80211_hw *hw = mvm->hw;
 194         struct ieee80211_chanctx_conf *chanctx_conf;
 195         struct ieee80211_channel *chan;
 196         int dtimper, dtimper_msec;
 197         int keep_alive;
 198         bool radar_detect = false;
 199         struct iwl_mvm_vif *mvmvif __maybe_unused =
 200                 iwl_mvm_vif_from_mac80211(vif);
 201         enum ieee80211_ac_numbers ac;
 202         bool tid_found = false;
 203
 204         cmd->id_and_color = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
 205                                                             mvmvif->color));
 206         dtimper = hw->conf.ps_dtim_period ?: 1;
 207
 208         /*
 209          * Regardless of power management state the driver must set
 210          * keep alive period. FW will use it for sending keep alive NDPs
 211          * immediately after association. Check that keep alive period
 212          * is at least 3 * DTIM
 213          */
 214         dtimper_msec = dtimper * vif->bss_conf.beacon_int;
 215         keep_alive = max_t(int, 3 * dtimper_msec,
 216                            MSEC_PER_SEC * POWER_KEEP_ALIVE_PERIOD_SEC);
 217         keep_alive = DIV_ROUND_UP(keep_alive, MSEC_PER_SEC);
 218         cmd->keep_alive_seconds = cpu_to_le16(keep_alive);
 219
 220         if (iwlmvm_mod_params.power_scheme == IWL_POWER_SCHEME_CAM)
 221                 return;
 222
 223         cmd->flags |= cpu_to_le16(POWER_FLAGS_POWER_SAVE_ENA_MSK);
 224
 225 #ifdef CONFIG_IWLWIFI_DEBUGFS
 226         if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_DISABLE_POWER_OFF &&
 227             mvmvif->dbgfs_pm.disable_power_off)
 228                 cmd->flags &= cpu_to_le16(~POWER_FLAGS_POWER_SAVE_ENA_MSK);
 229 #endif
 230         if (!vif->bss_conf.ps)
 231                 return;
 232
 233         cmd->flags |= cpu_to_le16(POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK);
 234
 235         if (vif->bss_conf.beacon_rate &&
 236             (vif->bss_conf.beacon_rate->bitrate == 10 ||
 237              vif->bss_conf.beacon_rate->bitrate == 60)) {
 238                 cmd->flags |= cpu_to_le16(POWER_FLAGS_LPRX_ENA_MSK);
 239                 cmd->lprx_rssi_threshold = POWER_LPRX_RSSI_THRESHOLD;
 240         }
 241
 242         /* Check if radar detection is required on current channel */
 243         rcu_read_lock();
 244         chanctx_conf = rcu_dereference(vif->chanctx_conf);
 245         WARN_ON(!chanctx_conf);
 246         if (chanctx_conf) {
 247                 chan = chanctx_conf->def.chan;
 248                 radar_detect = chan->flags & IEEE80211_CHAN_RADAR;
 249         }
 250         rcu_read_unlock();
 251
 252         /* Check skip over DTIM conditions */
 253         if (!radar_detect && (dtimper <= 10) &&
 254             (iwlmvm_mod_params.power_scheme == IWL_POWER_SCHEME_LP ||
 255              mvm->cur_ucode == IWL_UCODE_WOWLAN)) {
 256                 cmd->flags |= cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK);
 257                 cmd->skip_dtim_periods = 3;
 258         }
 259
 260         if (mvm->cur_ucode != IWL_UCODE_WOWLAN) {
 261                 cmd->rx_data_timeout =
 262                         cpu_to_le32(IWL_MVM_DEFAULT_PS_RX_DATA_TIMEOUT);
 263                 cmd->tx_data_timeout =
 264                         cpu_to_le32(IWL_MVM_DEFAULT_PS_TX_DATA_TIMEOUT);
 265         } else {
 266                 cmd->rx_data_timeout =
 267                         cpu_to_le32(IWL_MVM_WOWLAN_PS_RX_DATA_TIMEOUT);
 268                 cmd->tx_data_timeout =
 269                         cpu_to_le32(IWL_MVM_WOWLAN_PS_TX_DATA_TIMEOUT);
 270         }
 271
 272         for (ac = IEEE80211_AC_VO; ac <= IEEE80211_AC_BK; ac++) {
 273                 if (!mvmvif->queue_params[ac].uapsd)
 274                         continue;
 275
 276                 cmd->flags |= cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK);
 277                 cmd->uapsd_ac_flags |= BIT(ac);
 278
 279                 /* QNDP TID - the highest TID with no admission control */
 280                 if (!tid_found && !mvmvif->queue_params[ac].acm) {
 281                         tid_found = true;
 282                         switch (ac) {
 283                         case IEEE80211_AC_VO:
 284                                 cmd->qndp_tid = 6;
 285                                 break;
 286                         case IEEE80211_AC_VI:
 287                                 cmd->qndp_tid = 5;
 288                                 break;
 289                         case IEEE80211_AC_BE:
 290                                 cmd->qndp_tid = 0;
 291                                 break;
 292                         case IEEE80211_AC_BK:
 293                                 cmd->qndp_tid = 1;
 294                                 break;
 295                         }
 296                 }
 297         }
 298
 299         if (cmd->flags & cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK)) {
 300                 cmd->rx_data_timeout_uapsd =
 301                         cpu_to_le32(IWL_MVM_UAPSD_RX_DATA_TIMEOUT);
 302                 cmd->tx_data_timeout_uapsd =
 303                         cpu_to_le32(IWL_MVM_UAPSD_TX_DATA_TIMEOUT);
 304
 305                 if (cmd->uapsd_ac_flags == (BIT(IEEE80211_AC_VO) |
 306                                             BIT(IEEE80211_AC_VI) |
 307                                             BIT(IEEE80211_AC_BE) |
 308                                             BIT(IEEE80211_AC_BK))) {
 309                         cmd->flags |= cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK);
 310                         cmd->snooze_interval =
 311                                 cpu_to_le16(IWL_MVM_PS_SNOOZE_INTERVAL);
 312                         cmd->snooze_window =
 313                                 (mvm->cur_ucode == IWL_UCODE_WOWLAN) ?
 314                                 cpu_to_le16(IWL_MVM_WOWLAN_PS_SNOOZE_WINDOW) :
 315                                 cpu_to_le16(IWL_MVM_PS_SNOOZE_WINDOW);
 316                 }
 317
 318                 cmd->uapsd_max_sp = IWL_UAPSD_MAX_SP;
 319                 cmd->heavy_tx_thld_packets =
 320                         IWL_MVM_PS_HEAVY_TX_THLD_PACKETS;
 321                 cmd->heavy_rx_thld_packets =
 322                         IWL_MVM_PS_HEAVY_RX_THLD_PACKETS;
 323                 cmd->heavy_tx_thld_percentage =
 324                         IWL_MVM_PS_HEAVY_TX_THLD_PERCENT;
 325                 cmd->heavy_rx_thld_percentage =
 326                         IWL_MVM_PS_HEAVY_RX_THLD_PERCENT;
 327         }
 328
 329 #ifdef CONFIG_IWLWIFI_DEBUGFS
 330         if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_KEEP_ALIVE)
 331                 cmd->keep_alive_seconds =
 332                         cpu_to_le16(mvmvif->dbgfs_pm.keep_alive_seconds);
 333         if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_SKIP_OVER_DTIM) {
 334                 if (mvmvif->dbgfs_pm.skip_over_dtim)
 335                         cmd->flags |=
 336                                 cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK);
 337                 else
 338                         cmd->flags &=
 339                                 cpu_to_le16(~POWER_FLAGS_SKIP_OVER_DTIM_MSK);
 340         }
 341         if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_RX_DATA_TIMEOUT)
 342                 cmd->rx_data_timeout =
 343                         cpu_to_le32(mvmvif->dbgfs_pm.rx_data_timeout);
 344         if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_TX_DATA_TIMEOUT)
 345                 cmd->tx_data_timeout =
 346                         cpu_to_le32(mvmvif->dbgfs_pm.tx_data_timeout);
 347         if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_SKIP_DTIM_PERIODS)
 348                 cmd->skip_dtim_periods = mvmvif->dbgfs_pm.skip_dtim_periods;
 349         if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_LPRX_ENA) {
 350                 if (mvmvif->dbgfs_pm.lprx_ena)
 351                         cmd->flags |= cpu_to_le16(POWER_FLAGS_LPRX_ENA_MSK);
 352                 else
 353                         cmd->flags &= cpu_to_le16(~POWER_FLAGS_LPRX_ENA_MSK);
 354         }
 355         if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_LPRX_RSSI_THRESHOLD)
 356                 cmd->lprx_rssi_threshold = mvmvif->dbgfs_pm.lprx_rssi_threshold;
 357         if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_SNOOZE_ENABLE) {
 358                 if (mvmvif->dbgfs_pm.snooze_ena)
 359                         cmd->flags |=
 360                                 cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK);
 361                 else
 362                         cmd->flags &=
 363                                 cpu_to_le16(~POWER_FLAGS_SNOOZE_ENA_MSK);
 364         }
 365 #endif /* CONFIG_IWLWIFI_DEBUGFS */
 366 }
 367
 368 static int iwl_mvm_power_mac_update_mode(struct iwl_mvm *mvm,
 369                                          struct ieee80211_vif *vif)
 370 {
 371         int ret;
 372         bool ba_enable;
 373         struct iwl_mac_power_cmd cmd = {};
 374
 375         if (vif->type != NL80211_IFTYPE_STATION || vif->p2p)
 376                 return 0;
 377
 378         /*
 379          * TODO: The following vif_count verification is temporary condition.
 380          * Avoid power mode update if more than one interface is currently
 381          * active. Remove this condition when FW will support power management
 382          * on multiple MACs.
 383          */
 384         IWL_DEBUG_POWER(mvm, "Currently %d interfaces active\n",
 385                         mvm->vif_count);
 386         if (mvm->vif_count > 1)
 387                 return 0;
 388
 389         iwl_mvm_power_build_cmd(mvm, vif, &cmd);
 390         iwl_mvm_power_log(mvm, &cmd);
 391
 392         ret = iwl_mvm_send_cmd_pdu(mvm, MAC_PM_POWER_TABLE, CMD_SYNC,
 393                                    sizeof(cmd), &cmd);
 394         if (ret)
 395                 return ret;
 396
 397         ba_enable = !!(cmd.flags &
 398                        cpu_to_le16(POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK));
 399
 400         return iwl_mvm_update_beacon_abort(mvm, vif, ba_enable);
 401 }
 402
 403 static int iwl_mvm_power_mac_disable(struct iwl_mvm *mvm,
 404                                      struct ieee80211_vif *vif)
 405 {
 406         struct iwl_mac_power_cmd cmd = {};
 407         struct iwl_mvm_vif *mvmvif __maybe_unused =
 408                 iwl_mvm_vif_from_mac80211(vif);
 409
 410         if (vif->type != NL80211_IFTYPE_STATION || vif->p2p)
 411                 return 0;
 412
 413         cmd.id_and_color = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
 414                                                            mvmvif->color));
 415
 416         if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM)
 417                 cmd.flags |= cpu_to_le16(POWER_FLAGS_POWER_SAVE_ENA_MSK);
 418
 419 #ifdef CONFIG_IWLWIFI_DEBUGFS
 420         if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_DISABLE_POWER_OFF &&
 421             mvmvif->dbgfs_pm.disable_power_off)
 422                 cmd.flags &= cpu_to_le16(~POWER_FLAGS_POWER_SAVE_ENA_MSK);
 423 #endif
 424         iwl_mvm_power_log(mvm, &cmd);
 425
 426         return iwl_mvm_send_cmd_pdu(mvm, MAC_PM_POWER_TABLE, CMD_ASYNC,
 427                                     sizeof(cmd), &cmd);
 428 }
 429
 430 #ifdef CONFIG_IWLWIFI_DEBUGFS
 431 static int iwl_mvm_power_mac_dbgfs_read(struct iwl_mvm *mvm,
 432                                         struct ieee80211_vif *vif, char *buf,
 433                                         int bufsz)
 434 {
 435         struct iwl_mac_power_cmd cmd = {};
 436         int pos = 0;
 437
 438         iwl_mvm_power_build_cmd(mvm, vif, &cmd);
 439
 440         pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off = %d\n",
 441                          (cmd.flags &
 442                          cpu_to_le16(POWER_FLAGS_POWER_SAVE_ENA_MSK)) ?
 443                          0 : 1);
 444         pos += scnprintf(buf+pos, bufsz-pos, "power_scheme = %d\n",
 445                          iwlmvm_mod_params.power_scheme);
 446         pos += scnprintf(buf+pos, bufsz-pos, "flags = 0x%x\n",
 447                          le16_to_cpu(cmd.flags));
 448         pos += scnprintf(buf+pos, bufsz-pos, "keep_alive = %d\n",
 449                          le16_to_cpu(cmd.keep_alive_seconds));
 450
 451         if (cmd.flags & cpu_to_le16(POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK)) {
 452                 pos += scnprintf(buf+pos, bufsz-pos, "skip_over_dtim = %d\n",
 453                                  (cmd.flags &
 454                                  cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK)) ?
 455                                  1 : 0);
 456                 pos += scnprintf(buf+pos, bufsz-pos, "skip_dtim_periods = %d\n",
 457                                  cmd.skip_dtim_periods);
 458                 if (!(cmd.flags &
 459                       cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK))) {
 460                         pos += scnprintf(buf+pos, bufsz-pos,
 461                                          "rx_data_timeout = %d\n",
 462                                          le32_to_cpu(cmd.rx_data_timeout));
 463                         pos += scnprintf(buf+pos, bufsz-pos,
 464                                          "tx_data_timeout = %d\n",
 465                                          le32_to_cpu(cmd.tx_data_timeout));
 466                 }
 467                 if (cmd.flags & cpu_to_le16(POWER_FLAGS_LPRX_ENA_MSK))
 468                         pos += scnprintf(buf+pos, bufsz-pos,
 469                                          "lprx_rssi_threshold = %d\n",
 470                                          cmd.lprx_rssi_threshold);
 471                 if (cmd.flags & cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK)) {
 472                         pos +=
 473                         scnprintf(buf+pos, bufsz-pos,
 474                                   "rx_data_timeout_uapsd = %d\n",
 475                                   le32_to_cpu(cmd.rx_data_timeout_uapsd));
 476                         pos +=
 477                         scnprintf(buf+pos, bufsz-pos,
 478                                   "tx_data_timeout_uapsd = %d\n",
 479                                   le32_to_cpu(cmd.tx_data_timeout_uapsd));
 480                         pos += scnprintf(buf+pos, bufsz-pos, "qndp_tid = %d\n",
 481                                          cmd.qndp_tid);
 482                         pos += scnprintf(buf+pos, bufsz-pos,
 483                                          "uapsd_ac_flags = 0x%x\n",
 484                                          cmd.uapsd_ac_flags);
 485                         pos += scnprintf(buf+pos, bufsz-pos,
 486                                          "uapsd_max_sp = %d\n",
 487                                          cmd.uapsd_max_sp);
 488                         pos += scnprintf(buf+pos, bufsz-pos,
 489                                          "heavy_tx_thld_packets = %d\n",
 490                                          cmd.heavy_tx_thld_packets);
 491                         pos += scnprintf(buf+pos, bufsz-pos,
 492                                          "heavy_rx_thld_packets = %d\n",
 493                                          cmd.heavy_rx_thld_packets);
 494                         pos += scnprintf(buf+pos, bufsz-pos,
 495                                          "heavy_tx_thld_percentage = %d\n",
 496                                          cmd.heavy_tx_thld_percentage);
 497                         pos += scnprintf(buf+pos, bufsz-pos,
 498                                          "heavy_rx_thld_percentage = %d\n",
 499                                          cmd.heavy_rx_thld_percentage);
 500                         pos +=
 501                         scnprintf(buf+pos, bufsz-pos, "snooze_enable = %d\n",
 502                                   (cmd.flags &
 503                                    cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK)) ?
 504                                   1 : 0);
 505                 }
 506                 if (cmd.flags & cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK)) {
 507                         pos += scnprintf(buf+pos, bufsz-pos,
 508                                          "snooze_interval = %d\n",
 509                                          cmd.snooze_interval);
 510                         pos += scnprintf(buf+pos, bufsz-pos,
 511                                          "snooze_window = %d\n",
 512                                          cmd.snooze_window);
 513                 }
 514         }
 515         return pos;
 516 }
 517
 518 void
 519 iwl_mvm_beacon_filter_debugfs_parameters(struct ieee80211_vif *vif,
 520                                          struct iwl_beacon_filter_cmd *cmd)
 521 {
 522         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 523         struct iwl_dbgfs_bf *dbgfs_bf = &mvmvif->dbgfs_bf;
 524
 525         if (dbgfs_bf->mask & MVM_DEBUGFS_BF_ENERGY_DELTA)
 526                 cmd->bf_energy_delta = cpu_to_le32(dbgfs_bf->bf_energy_delta);
 527         if (dbgfs_bf->mask & MVM_DEBUGFS_BF_ROAMING_ENERGY_DELTA)
 528                 cmd->bf_roaming_energy_delta =
 529                                 cpu_to_le32(dbgfs_bf->bf_roaming_energy_delta);
 530         if (dbgfs_bf->mask & MVM_DEBUGFS_BF_ROAMING_STATE)
 531                 cmd->bf_roaming_state = cpu_to_le32(dbgfs_bf->bf_roaming_state);
 532         if (dbgfs_bf->mask & MVM_DEBUGFS_BF_TEMP_THRESHOLD)
 533                 cmd->bf_temp_threshold =
 534                                 cpu_to_le32(dbgfs_bf->bf_temp_threshold);
 535         if (dbgfs_bf->mask & MVM_DEBUGFS_BF_TEMP_FAST_FILTER)
 536                 cmd->bf_temp_fast_filter =
 537                                 cpu_to_le32(dbgfs_bf->bf_temp_fast_filter);
 538         if (dbgfs_bf->mask & MVM_DEBUGFS_BF_TEMP_SLOW_FILTER)
 539                 cmd->bf_temp_slow_filter =
 540                                 cpu_to_le32(dbgfs_bf->bf_temp_slow_filter);
 541         if (dbgfs_bf->mask & MVM_DEBUGFS_BF_DEBUG_FLAG)
 542                 cmd->bf_debug_flag = cpu_to_le32(dbgfs_bf->bf_debug_flag);
 543         if (dbgfs_bf->mask & MVM_DEBUGFS_BF_ESCAPE_TIMER)
 544                 cmd->bf_escape_timer = cpu_to_le32(dbgfs_bf->bf_escape_timer);
 545         if (dbgfs_bf->mask & MVM_DEBUGFS_BA_ESCAPE_TIMER)
 546                 cmd->ba_escape_timer = cpu_to_le32(dbgfs_bf->ba_escape_timer);
 547         if (dbgfs_bf->mask & MVM_DEBUGFS_BA_ENABLE_BEACON_ABORT)
 548                 cmd->ba_enable_beacon_abort =
 549                                 cpu_to_le32(dbgfs_bf->ba_enable_beacon_abort);
 550 }
 551 #endif
 552
 553 int iwl_mvm_enable_beacon_filter(struct iwl_mvm *mvm,
 554                                  struct ieee80211_vif *vif)
 555 {
 556         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 557         struct iwl_beacon_filter_cmd cmd = {
 558                 IWL_BF_CMD_CONFIG_DEFAULTS,
 559                 .bf_enable_beacon_filter = cpu_to_le32(1),
 560         };
 561         int ret;
 562
 563         if (mvmvif != mvm->bf_allowed_vif ||
 564             vif->type != NL80211_IFTYPE_STATION || vif->p2p)
 565                 return 0;
 566
 567         iwl_mvm_beacon_filter_set_cqm_params(mvm, vif, &cmd);
 568         iwl_mvm_beacon_filter_debugfs_parameters(vif, &cmd);
 569         ret = iwl_mvm_beacon_filter_send_cmd(mvm, &cmd);
 570
 571         if (!ret)
 572                 mvmvif->bf_data.bf_enabled = true;
 573
 574         return ret;
 575 }
 576
 577 int iwl_mvm_disable_beacon_filter(struct iwl_mvm *mvm,
 578                                   struct ieee80211_vif *vif)
 579 {
 580         struct iwl_beacon_filter_cmd cmd = {};
 581         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 582         int ret;
 583
 584         if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BF_UPDATED) ||
 585             vif->type != NL80211_IFTYPE_STATION || vif->p2p)
 586                 return 0;
 587
 588         ret = iwl_mvm_beacon_filter_send_cmd(mvm, &cmd);
 589
 590         if (!ret)
 591                 mvmvif->bf_data.bf_enabled = false;
 592
 593         return ret;
 594 }
 595
 596 int iwl_mvm_update_beacon_filter(struct iwl_mvm *mvm,
 597                                  struct ieee80211_vif *vif)
 598 {
 599         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 600
 601         if (!mvmvif->bf_data.bf_enabled)
 602                 return 0;
 603
 604         return iwl_mvm_enable_beacon_filter(mvm, vif);
 605 }
 606
 607 const struct iwl_mvm_power_ops pm_mac_ops = {
 608         .power_update_mode = iwl_mvm_power_mac_update_mode,
 609         .power_disable = iwl_mvm_power_mac_disable,
 610 #ifdef CONFIG_IWLWIFI_DEBUGFS
 611         .power_dbgfs_read = iwl_mvm_power_mac_dbgfs_read,
 612 #endif
 613 };