Pileus Git - ~andy/linux/blob - drivers/net/wireless/iwlwifi/mvm/power.c

   1 /******************************************************************************
   2  *
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   4  * redistributing this file, you may do so under either license.
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   6  * GPL LICENSE SUMMARY
   7  *
   8  * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved.
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  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
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  14  * This program is distributed in the hope that it will be useful, but
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  44  *    the documentation and/or other materials provided with the
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  47  *    contributors may be used to endorse or promote products derived
  48  *    from this software without specific prior written permission.
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  51  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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  53  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  54  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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  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                 if (mvm->cur_ucode != IWL_UCODE_WOWLAN)
 277                         cmd->flags |=
 278                                 cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK);
 279
 280                 cmd->uapsd_ac_flags |= BIT(ac);
 281
 282                 /* QNDP TID - the highest TID with no admission control */
 283                 if (!tid_found && !mvmvif->queue_params[ac].acm) {
 284                         tid_found = true;
 285                         switch (ac) {
 286                         case IEEE80211_AC_VO:
 287                                 cmd->qndp_tid = 6;
 288                                 break;
 289                         case IEEE80211_AC_VI:
 290                                 cmd->qndp_tid = 5;
 291                                 break;
 292                         case IEEE80211_AC_BE:
 293                                 cmd->qndp_tid = 0;
 294                                 break;
 295                         case IEEE80211_AC_BK:
 296                                 cmd->qndp_tid = 1;
 297                                 break;
 298                         }
 299                 }
 300         }
 301
 302         if (cmd->flags & cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK)) {
 303                 if (cmd->uapsd_ac_flags == (BIT(IEEE80211_AC_VO) |
 304                                             BIT(IEEE80211_AC_VI) |
 305                                             BIT(IEEE80211_AC_BE) |
 306                                             BIT(IEEE80211_AC_BK))) {
 307                         cmd->flags |= cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK);
 308                         cmd->snooze_interval =
 309                                 cpu_to_le16(IWL_MVM_PS_SNOOZE_INTERVAL);
 310                         cmd->snooze_window =
 311                                 (mvm->cur_ucode == IWL_UCODE_WOWLAN) ?
 312                                 cpu_to_le16(IWL_MVM_WOWLAN_PS_SNOOZE_WINDOW) :
 313                                 cpu_to_le16(IWL_MVM_PS_SNOOZE_WINDOW);
 314                 }
 315
 316                 cmd->uapsd_max_sp = IWL_UAPSD_MAX_SP;
 317
 318                 if (mvm->cur_ucode == IWL_UCODE_WOWLAN || cmd->flags &
 319                     cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK)) {
 320                         cmd->rx_data_timeout_uapsd =
 321                                 cpu_to_le32(IWL_MVM_WOWLAN_PS_RX_DATA_TIMEOUT);
 322                         cmd->tx_data_timeout_uapsd =
 323                                 cpu_to_le32(IWL_MVM_WOWLAN_PS_TX_DATA_TIMEOUT);
 324                 } else {
 325                         cmd->rx_data_timeout_uapsd =
 326                                 cpu_to_le32(IWL_MVM_UAPSD_RX_DATA_TIMEOUT);
 327                         cmd->tx_data_timeout_uapsd =
 328                                 cpu_to_le32(IWL_MVM_UAPSD_TX_DATA_TIMEOUT);
 329                 }
 330
 331                 if (cmd->flags & cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK)) {
 332                         cmd->heavy_tx_thld_packets =
 333                                 IWL_MVM_PS_SNOOZE_HEAVY_TX_THLD_PACKETS;
 334                         cmd->heavy_rx_thld_packets =
 335                                 IWL_MVM_PS_SNOOZE_HEAVY_RX_THLD_PACKETS;
 336                 } else {
 337                         cmd->heavy_tx_thld_packets =
 338                                 IWL_MVM_PS_HEAVY_TX_THLD_PACKETS;
 339                         cmd->heavy_rx_thld_packets =
 340                                 IWL_MVM_PS_HEAVY_RX_THLD_PACKETS;
 341                 }
 342                 cmd->heavy_tx_thld_percentage =
 343                         IWL_MVM_PS_HEAVY_TX_THLD_PERCENT;
 344                 cmd->heavy_rx_thld_percentage =
 345                         IWL_MVM_PS_HEAVY_RX_THLD_PERCENT;
 346         }
 347
 348 #ifdef CONFIG_IWLWIFI_DEBUGFS
 349         if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_KEEP_ALIVE)
 350                 cmd->keep_alive_seconds =
 351                         cpu_to_le16(mvmvif->dbgfs_pm.keep_alive_seconds);
 352         if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_SKIP_OVER_DTIM) {
 353                 if (mvmvif->dbgfs_pm.skip_over_dtim)
 354                         cmd->flags |=
 355                                 cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK);
 356                 else
 357                         cmd->flags &=
 358                                 cpu_to_le16(~POWER_FLAGS_SKIP_OVER_DTIM_MSK);
 359         }
 360         if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_RX_DATA_TIMEOUT)
 361                 cmd->rx_data_timeout =
 362                         cpu_to_le32(mvmvif->dbgfs_pm.rx_data_timeout);
 363         if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_TX_DATA_TIMEOUT)
 364                 cmd->tx_data_timeout =
 365                         cpu_to_le32(mvmvif->dbgfs_pm.tx_data_timeout);
 366         if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_SKIP_DTIM_PERIODS)
 367                 cmd->skip_dtim_periods = mvmvif->dbgfs_pm.skip_dtim_periods;
 368         if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_LPRX_ENA) {
 369                 if (mvmvif->dbgfs_pm.lprx_ena)
 370                         cmd->flags |= cpu_to_le16(POWER_FLAGS_LPRX_ENA_MSK);
 371                 else
 372                         cmd->flags &= cpu_to_le16(~POWER_FLAGS_LPRX_ENA_MSK);
 373         }
 374         if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_LPRX_RSSI_THRESHOLD)
 375                 cmd->lprx_rssi_threshold = mvmvif->dbgfs_pm.lprx_rssi_threshold;
 376         if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_SNOOZE_ENABLE) {
 377                 if (mvmvif->dbgfs_pm.snooze_ena)
 378                         cmd->flags |=
 379                                 cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK);
 380                 else
 381                         cmd->flags &=
 382                                 cpu_to_le16(~POWER_FLAGS_SNOOZE_ENA_MSK);
 383         }
 384 #endif /* CONFIG_IWLWIFI_DEBUGFS */
 385 }
 386
 387 static int iwl_mvm_power_mac_update_mode(struct iwl_mvm *mvm,
 388                                          struct ieee80211_vif *vif)
 389 {
 390         int ret;
 391         bool ba_enable;
 392         struct iwl_mac_power_cmd cmd = {};
 393
 394         if (vif->type != NL80211_IFTYPE_STATION || vif->p2p)
 395                 return 0;
 396
 397         /*
 398          * TODO: The following vif_count verification is temporary condition.
 399          * Avoid power mode update if more than one interface is currently
 400          * active. Remove this condition when FW will support power management
 401          * on multiple MACs.
 402          */
 403         IWL_DEBUG_POWER(mvm, "Currently %d interfaces active\n",
 404                         mvm->vif_count);
 405         if (mvm->vif_count > 1)
 406                 return 0;
 407
 408         iwl_mvm_power_build_cmd(mvm, vif, &cmd);
 409         iwl_mvm_power_log(mvm, &cmd);
 410
 411         ret = iwl_mvm_send_cmd_pdu(mvm, MAC_PM_POWER_TABLE, CMD_SYNC,
 412                                    sizeof(cmd), &cmd);
 413         if (ret)
 414                 return ret;
 415
 416         ba_enable = !!(cmd.flags &
 417                        cpu_to_le16(POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK));
 418
 419         return iwl_mvm_update_beacon_abort(mvm, vif, ba_enable);
 420 }
 421
 422 static int iwl_mvm_power_mac_disable(struct iwl_mvm *mvm,
 423                                      struct ieee80211_vif *vif)
 424 {
 425         struct iwl_mac_power_cmd cmd = {};
 426         struct iwl_mvm_vif *mvmvif __maybe_unused =
 427                 iwl_mvm_vif_from_mac80211(vif);
 428
 429         if (vif->type != NL80211_IFTYPE_STATION || vif->p2p)
 430                 return 0;
 431
 432         cmd.id_and_color = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
 433                                                            mvmvif->color));
 434
 435         if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM)
 436                 cmd.flags |= cpu_to_le16(POWER_FLAGS_POWER_SAVE_ENA_MSK);
 437
 438 #ifdef CONFIG_IWLWIFI_DEBUGFS
 439         if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_DISABLE_POWER_OFF &&
 440             mvmvif->dbgfs_pm.disable_power_off)
 441                 cmd.flags &= cpu_to_le16(~POWER_FLAGS_POWER_SAVE_ENA_MSK);
 442 #endif
 443         iwl_mvm_power_log(mvm, &cmd);
 444
 445         return iwl_mvm_send_cmd_pdu(mvm, MAC_PM_POWER_TABLE, CMD_ASYNC,
 446                                     sizeof(cmd), &cmd);
 447 }
 448
 449 static int iwl_mvm_power_update_device(struct iwl_mvm *mvm)
 450 {
 451         struct iwl_device_power_cmd cmd = {
 452                 .flags = cpu_to_le16(DEVICE_POWER_FLAGS_POWER_SAVE_ENA_MSK),
 453         };
 454
 455         if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_DEVICE_PS_CMD))
 456                 return 0;
 457
 458         if (iwlmvm_mod_params.power_scheme == IWL_POWER_SCHEME_CAM)
 459                 cmd.flags |= cpu_to_le16(DEVICE_POWER_FLAGS_CAM_MSK);
 460
 461 #ifdef CONFIG_IWLWIFI_DEBUGFS
 462         if ((mvm->cur_ucode == IWL_UCODE_WOWLAN) ? mvm->disable_power_off_d3 :
 463             mvm->disable_power_off)
 464                 cmd.flags &=
 465                         cpu_to_le16(~DEVICE_POWER_FLAGS_POWER_SAVE_ENA_MSK);
 466 #endif
 467         IWL_DEBUG_POWER(mvm,
 468                         "Sending device power command with flags = 0x%X\n",
 469                         cmd.flags);
 470
 471         return iwl_mvm_send_cmd_pdu(mvm, POWER_TABLE_CMD, CMD_SYNC, sizeof(cmd),
 472                                     &cmd);
 473 }
 474
 475 #ifdef CONFIG_IWLWIFI_DEBUGFS
 476 static int iwl_mvm_power_mac_dbgfs_read(struct iwl_mvm *mvm,
 477                                         struct ieee80211_vif *vif, char *buf,
 478                                         int bufsz)
 479 {
 480         struct iwl_mac_power_cmd cmd = {};
 481         int pos = 0;
 482
 483         iwl_mvm_power_build_cmd(mvm, vif, &cmd);
 484
 485         if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_DEVICE_PS_CMD))
 486                 pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off = %d\n",
 487                                  (cmd.flags &
 488                                  cpu_to_le16(POWER_FLAGS_POWER_SAVE_ENA_MSK)) ?
 489                                  0 : 1);
 490         pos += scnprintf(buf+pos, bufsz-pos, "power_scheme = %d\n",
 491                          iwlmvm_mod_params.power_scheme);
 492         pos += scnprintf(buf+pos, bufsz-pos, "flags = 0x%x\n",
 493                          le16_to_cpu(cmd.flags));
 494         pos += scnprintf(buf+pos, bufsz-pos, "keep_alive = %d\n",
 495                          le16_to_cpu(cmd.keep_alive_seconds));
 496
 497         if (cmd.flags & cpu_to_le16(POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK)) {
 498                 pos += scnprintf(buf+pos, bufsz-pos, "skip_over_dtim = %d\n",
 499                                  (cmd.flags &
 500                                  cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK)) ?
 501                                  1 : 0);
 502                 pos += scnprintf(buf+pos, bufsz-pos, "skip_dtim_periods = %d\n",
 503                                  cmd.skip_dtim_periods);
 504                 if (!(cmd.flags &
 505                       cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK))) {
 506                         pos += scnprintf(buf+pos, bufsz-pos,
 507                                          "rx_data_timeout = %d\n",
 508                                          le32_to_cpu(cmd.rx_data_timeout));
 509                         pos += scnprintf(buf+pos, bufsz-pos,
 510                                          "tx_data_timeout = %d\n",
 511                                          le32_to_cpu(cmd.tx_data_timeout));
 512                 }
 513                 if (cmd.flags & cpu_to_le16(POWER_FLAGS_LPRX_ENA_MSK))
 514                         pos += scnprintf(buf+pos, bufsz-pos,
 515                                          "lprx_rssi_threshold = %d\n",
 516                                          cmd.lprx_rssi_threshold);
 517                 if (cmd.flags & cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK)) {
 518                         pos +=
 519                         scnprintf(buf+pos, bufsz-pos,
 520                                   "rx_data_timeout_uapsd = %d\n",
 521                                   le32_to_cpu(cmd.rx_data_timeout_uapsd));
 522                         pos +=
 523                         scnprintf(buf+pos, bufsz-pos,
 524                                   "tx_data_timeout_uapsd = %d\n",
 525                                   le32_to_cpu(cmd.tx_data_timeout_uapsd));
 526                         pos += scnprintf(buf+pos, bufsz-pos, "qndp_tid = %d\n",
 527                                          cmd.qndp_tid);
 528                         pos += scnprintf(buf+pos, bufsz-pos,
 529                                          "uapsd_ac_flags = 0x%x\n",
 530                                          cmd.uapsd_ac_flags);
 531                         pos += scnprintf(buf+pos, bufsz-pos,
 532                                          "uapsd_max_sp = %d\n",
 533                                          cmd.uapsd_max_sp);
 534                         pos += scnprintf(buf+pos, bufsz-pos,
 535                                          "heavy_tx_thld_packets = %d\n",
 536                                          cmd.heavy_tx_thld_packets);
 537                         pos += scnprintf(buf+pos, bufsz-pos,
 538                                          "heavy_rx_thld_packets = %d\n",
 539                                          cmd.heavy_rx_thld_packets);
 540                         pos += scnprintf(buf+pos, bufsz-pos,
 541                                          "heavy_tx_thld_percentage = %d\n",
 542                                          cmd.heavy_tx_thld_percentage);
 543                         pos += scnprintf(buf+pos, bufsz-pos,
 544                                          "heavy_rx_thld_percentage = %d\n",
 545                                          cmd.heavy_rx_thld_percentage);
 546                         pos +=
 547                         scnprintf(buf+pos, bufsz-pos, "snooze_enable = %d\n",
 548                                   (cmd.flags &
 549                                    cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK)) ?
 550                                   1 : 0);
 551                 }
 552                 if (cmd.flags & cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK)) {
 553                         pos += scnprintf(buf+pos, bufsz-pos,
 554                                          "snooze_interval = %d\n",
 555                                          cmd.snooze_interval);
 556                         pos += scnprintf(buf+pos, bufsz-pos,
 557                                          "snooze_window = %d\n",
 558                                          cmd.snooze_window);
 559                 }
 560         }
 561         return pos;
 562 }
 563
 564 void
 565 iwl_mvm_beacon_filter_debugfs_parameters(struct ieee80211_vif *vif,
 566                                          struct iwl_beacon_filter_cmd *cmd)
 567 {
 568         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 569         struct iwl_dbgfs_bf *dbgfs_bf = &mvmvif->dbgfs_bf;
 570
 571         if (dbgfs_bf->mask & MVM_DEBUGFS_BF_ENERGY_DELTA)
 572                 cmd->bf_energy_delta = cpu_to_le32(dbgfs_bf->bf_energy_delta);
 573         if (dbgfs_bf->mask & MVM_DEBUGFS_BF_ROAMING_ENERGY_DELTA)
 574                 cmd->bf_roaming_energy_delta =
 575                                 cpu_to_le32(dbgfs_bf->bf_roaming_energy_delta);
 576         if (dbgfs_bf->mask & MVM_DEBUGFS_BF_ROAMING_STATE)
 577                 cmd->bf_roaming_state = cpu_to_le32(dbgfs_bf->bf_roaming_state);
 578         if (dbgfs_bf->mask & MVM_DEBUGFS_BF_TEMP_THRESHOLD)
 579                 cmd->bf_temp_threshold =
 580                                 cpu_to_le32(dbgfs_bf->bf_temp_threshold);
 581         if (dbgfs_bf->mask & MVM_DEBUGFS_BF_TEMP_FAST_FILTER)
 582                 cmd->bf_temp_fast_filter =
 583                                 cpu_to_le32(dbgfs_bf->bf_temp_fast_filter);
 584         if (dbgfs_bf->mask & MVM_DEBUGFS_BF_TEMP_SLOW_FILTER)
 585                 cmd->bf_temp_slow_filter =
 586                                 cpu_to_le32(dbgfs_bf->bf_temp_slow_filter);
 587         if (dbgfs_bf->mask & MVM_DEBUGFS_BF_DEBUG_FLAG)
 588                 cmd->bf_debug_flag = cpu_to_le32(dbgfs_bf->bf_debug_flag);
 589         if (dbgfs_bf->mask & MVM_DEBUGFS_BF_ESCAPE_TIMER)
 590                 cmd->bf_escape_timer = cpu_to_le32(dbgfs_bf->bf_escape_timer);
 591         if (dbgfs_bf->mask & MVM_DEBUGFS_BA_ESCAPE_TIMER)
 592                 cmd->ba_escape_timer = cpu_to_le32(dbgfs_bf->ba_escape_timer);
 593         if (dbgfs_bf->mask & MVM_DEBUGFS_BA_ENABLE_BEACON_ABORT)
 594                 cmd->ba_enable_beacon_abort =
 595                                 cpu_to_le32(dbgfs_bf->ba_enable_beacon_abort);
 596 }
 597 #endif
 598
 599 int iwl_mvm_enable_beacon_filter(struct iwl_mvm *mvm,
 600                                  struct ieee80211_vif *vif)
 601 {
 602         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 603         struct iwl_beacon_filter_cmd cmd = {
 604                 IWL_BF_CMD_CONFIG_DEFAULTS,
 605                 .bf_enable_beacon_filter = cpu_to_le32(1),
 606         };
 607         int ret;
 608
 609         if (mvmvif != mvm->bf_allowed_vif ||
 610             vif->type != NL80211_IFTYPE_STATION || vif->p2p)
 611                 return 0;
 612
 613         iwl_mvm_beacon_filter_set_cqm_params(mvm, vif, &cmd);
 614         iwl_mvm_beacon_filter_debugfs_parameters(vif, &cmd);
 615         ret = iwl_mvm_beacon_filter_send_cmd(mvm, &cmd);
 616
 617         if (!ret)
 618                 mvmvif->bf_data.bf_enabled = true;
 619
 620         return ret;
 621 }
 622
 623 int iwl_mvm_disable_beacon_filter(struct iwl_mvm *mvm,
 624                                   struct ieee80211_vif *vif)
 625 {
 626         struct iwl_beacon_filter_cmd cmd = {};
 627         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 628         int ret;
 629
 630         if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BF_UPDATED) ||
 631             vif->type != NL80211_IFTYPE_STATION || vif->p2p)
 632                 return 0;
 633
 634         ret = iwl_mvm_beacon_filter_send_cmd(mvm, &cmd);
 635
 636         if (!ret)
 637                 mvmvif->bf_data.bf_enabled = false;
 638
 639         return ret;
 640 }
 641
 642 int iwl_mvm_update_beacon_filter(struct iwl_mvm *mvm,
 643                                  struct ieee80211_vif *vif)
 644 {
 645         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 646
 647         if (!mvmvif->bf_data.bf_enabled)
 648                 return 0;
 649
 650         return iwl_mvm_enable_beacon_filter(mvm, vif);
 651 }
 652
 653 const struct iwl_mvm_power_ops pm_mac_ops = {
 654         .power_update_mode = iwl_mvm_power_mac_update_mode,
 655         .power_update_device_mode = iwl_mvm_power_update_device,
 656         .power_disable = iwl_mvm_power_mac_disable,
 657 #ifdef CONFIG_IWLWIFI_DEBUGFS
 658         .power_dbgfs_read = iwl_mvm_power_mac_dbgfs_read,
 659 #endif
 660 };