/******************************************************************************
 *
 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
 * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
 * Copyright(c) 2018        Intel Corporation
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *  * Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *  * Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *  * Neither the name Intel Corporation nor the names of its
 *    contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 *****************************************************************************/
#include "debugfs.h"
#include "fw/api/tof.h"
#include "mvm.h"

static void iwl_dbgfs_update_pm(struct iwl_mvm* mvm, struct ieee80211_vif* vif,
                                enum iwl_dbgfs_pm_mask param, int val) {
  struct iwl_mvm_vif* mvmvif = iwl_mvm_vif_from_mac80211(vif);
  struct iwl_dbgfs_pm* dbgfs_pm = &mvmvif->dbgfs_pm;

  dbgfs_pm->mask |= param;

  switch (param) {
    case MVM_DEBUGFS_PM_KEEP_ALIVE: {
      int dtimper = vif->bss_conf.dtim_period ?: 1;
      int dtimper_msec = dtimper * vif->bss_conf.beacon_int;

      IWL_DEBUG_POWER(mvm, "debugfs: set keep_alive= %d sec\n", val);
      if (val * MSEC_PER_SEC < 3 * dtimper_msec)
        IWL_WARN(mvm,
                 "debugfs: keep alive period (%ld msec) is less than minimum required (%d msec)\n",
                 val * MSEC_PER_SEC, 3 * dtimper_msec);
      dbgfs_pm->keep_alive_seconds = val;
      break;
    }
    case MVM_DEBUGFS_PM_SKIP_OVER_DTIM:
      IWL_DEBUG_POWER(mvm, "skip_over_dtim %s\n", val ? "enabled" : "disabled");
      dbgfs_pm->skip_over_dtim = val;
      break;
    case MVM_DEBUGFS_PM_SKIP_DTIM_PERIODS:
      IWL_DEBUG_POWER(mvm, "skip_dtim_periods=%d\n", val);
      dbgfs_pm->skip_dtim_periods = val;
      break;
    case MVM_DEBUGFS_PM_RX_DATA_TIMEOUT:
      IWL_DEBUG_POWER(mvm, "rx_data_timeout=%d\n", val);
      dbgfs_pm->rx_data_timeout = val;
      break;
    case MVM_DEBUGFS_PM_TX_DATA_TIMEOUT:
      IWL_DEBUG_POWER(mvm, "tx_data_timeout=%d\n", val);
      dbgfs_pm->tx_data_timeout = val;
      break;
    case MVM_DEBUGFS_PM_LPRX_ENA:
      IWL_DEBUG_POWER(mvm, "lprx %s\n", val ? "enabled" : "disabled");
      dbgfs_pm->lprx_ena = val;
      break;
    case MVM_DEBUGFS_PM_LPRX_RSSI_THRESHOLD:
      IWL_DEBUG_POWER(mvm, "lprx_rssi_threshold=%d\n", val);
      dbgfs_pm->lprx_rssi_threshold = val;
      break;
    case MVM_DEBUGFS_PM_SNOOZE_ENABLE:
      IWL_DEBUG_POWER(mvm, "snooze_enable=%d\n", val);
      dbgfs_pm->snooze_ena = val;
      break;
    case MVM_DEBUGFS_PM_UAPSD_MISBEHAVING:
      IWL_DEBUG_POWER(mvm, "uapsd_misbehaving_enable=%d\n", val);
      dbgfs_pm->uapsd_misbehaving = val;
      break;
    case MVM_DEBUGFS_PM_USE_PS_POLL:
      IWL_DEBUG_POWER(mvm, "use_ps_poll=%d\n", val);
      dbgfs_pm->use_ps_poll = val;
      break;
  }
}

static ssize_t iwl_dbgfs_pm_params_write(struct ieee80211_vif* vif, char* buf, size_t count,
                                         loff_t* ppos) {
  struct iwl_mvm_vif* mvmvif = iwl_mvm_vif_from_mac80211(vif);
  struct iwl_mvm* mvm = mvmvif->mvm;
  enum iwl_dbgfs_pm_mask param;
  int val, ret;

  if (!strncmp("keep_alive=", buf, 11)) {
    if (sscanf(buf + 11, "%d", &val) != 1) {
      return -EINVAL;
    }
    param = MVM_DEBUGFS_PM_KEEP_ALIVE;
  } else if (!strncmp("skip_over_dtim=", buf, 15)) {
    if (sscanf(buf + 15, "%d", &val) != 1) {
      return -EINVAL;
    }
    param = MVM_DEBUGFS_PM_SKIP_OVER_DTIM;
  } else if (!strncmp("skip_dtim_periods=", buf, 18)) {
    if (sscanf(buf + 18, "%d", &val) != 1) {
      return -EINVAL;
    }
    param = MVM_DEBUGFS_PM_SKIP_DTIM_PERIODS;
  } else if (!strncmp("rx_data_timeout=", buf, 16)) {
    if (sscanf(buf + 16, "%d", &val) != 1) {
      return -EINVAL;
    }
    param = MVM_DEBUGFS_PM_RX_DATA_TIMEOUT;
  } else if (!strncmp("tx_data_timeout=", buf, 16)) {
    if (sscanf(buf + 16, "%d", &val) != 1) {
      return -EINVAL;
    }
    param = MVM_DEBUGFS_PM_TX_DATA_TIMEOUT;
  } else if (!strncmp("lprx=", buf, 5)) {
    if (sscanf(buf + 5, "%d", &val) != 1) {
      return -EINVAL;
    }
    param = MVM_DEBUGFS_PM_LPRX_ENA;
  } else if (!strncmp("lprx_rssi_threshold=", buf, 20)) {
    if (sscanf(buf + 20, "%d", &val) != 1) {
      return -EINVAL;
    }
    if (val > POWER_LPRX_RSSI_THRESHOLD_MAX || val < POWER_LPRX_RSSI_THRESHOLD_MIN) {
      return -EINVAL;
    }
    param = MVM_DEBUGFS_PM_LPRX_RSSI_THRESHOLD;
  } else if (!strncmp("snooze_enable=", buf, 14)) {
    if (sscanf(buf + 14, "%d", &val) != 1) {
      return -EINVAL;
    }
    param = MVM_DEBUGFS_PM_SNOOZE_ENABLE;
  } else if (!strncmp("uapsd_misbehaving=", buf, 18)) {
    if (sscanf(buf + 18, "%d", &val) != 1) {
      return -EINVAL;
    }
    param = MVM_DEBUGFS_PM_UAPSD_MISBEHAVING;
  } else if (!strncmp("use_ps_poll=", buf, 12)) {
    if (sscanf(buf + 12, "%d", &val) != 1) {
      return -EINVAL;
    }
    param = MVM_DEBUGFS_PM_USE_PS_POLL;
  } else {
    return -EINVAL;
  }

  mutex_lock(&mvm->mutex);
  iwl_dbgfs_update_pm(mvm, vif, param, val);
  ret = iwl_mvm_power_update_mac(mvm);
  mutex_unlock(&mvm->mutex);

  return ret ?: count;
}

static ssize_t iwl_dbgfs_tx_pwr_lmt_read(struct file* file, char __user* user_buf, size_t count,
                                         loff_t* ppos) {
  struct ieee80211_vif* vif = file->private_data;
  char buf[64];
  int bufsz = sizeof(buf);
  int pos;

  pos = scnprintf(buf, bufsz, "bss limit = %d\n", vif->bss_conf.txpower);

#ifdef CPTCFG_IWLWIFI_FRQ_MGR
  {
    struct iwl_mvm_vif* mvmvif = iwl_mvm_vif_from_mac80211(vif);
    struct iwl_mvm* mvm = mvmvif->mvm;

    mutex_lock(&mvm->mutex);
    if (mvmvif->phy_ctxt)
      pos +=
          scnprintf(buf + pos, bufsz - pos, "fm limit = %d\n", mvmvif->phy_ctxt->fm_tx_power_limit);
    mutex_unlock(&mvm->mutex);
  }
#endif

  return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
}

static ssize_t iwl_dbgfs_pm_params_read(struct file* file, char __user* user_buf, size_t count,
                                        loff_t* ppos) {
  struct ieee80211_vif* vif = file->private_data;
  struct iwl_mvm_vif* mvmvif = iwl_mvm_vif_from_mac80211(vif);
  struct iwl_mvm* mvm = mvmvif->mvm;
  char buf[512];
  int bufsz = sizeof(buf);
  int pos;

  pos = iwl_mvm_power_mac_dbgfs_read(mvm, vif, buf, bufsz);

  return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
}

static ssize_t iwl_dbgfs_mac_params_read(struct file* file, char __user* user_buf, size_t count,
                                         loff_t* ppos) {
  struct ieee80211_vif* vif = file->private_data;
  struct iwl_mvm_vif* mvmvif = iwl_mvm_vif_from_mac80211(vif);
  struct iwl_mvm* mvm = mvmvif->mvm;
  uint8_t ap_sta_id;
  struct ieee80211_chanctx_conf* chanctx_conf;
  char buf[512];
  int bufsz = sizeof(buf);
  int pos = 0;
  int i;

  mutex_lock(&mvm->mutex);

  ap_sta_id = mvmvif->ap_sta_id;

  switch (ieee80211_vif_type_p2p(vif)) {
    case NL80211_IFTYPE_ADHOC:
      pos += scnprintf(buf + pos, bufsz - pos, "type: ibss\n");
      break;
    case NL80211_IFTYPE_STATION:
      pos += scnprintf(buf + pos, bufsz - pos, "type: bss\n");
      break;
    case NL80211_IFTYPE_AP:
      pos += scnprintf(buf + pos, bufsz - pos, "type: ap\n");
      break;
    case NL80211_IFTYPE_P2P_CLIENT:
      pos += scnprintf(buf + pos, bufsz - pos, "type: p2p client\n");
      break;
    case NL80211_IFTYPE_P2P_GO:
      pos += scnprintf(buf + pos, bufsz - pos, "type: p2p go\n");
      break;
    case NL80211_IFTYPE_P2P_DEVICE:
      pos += scnprintf(buf + pos, bufsz - pos, "type: p2p dev\n");
      break;
    case NL80211_IFTYPE_NAN:
      pos += scnprintf(buf + pos, bufsz - pos, "type: NAN\n");
      break;
    default:
      break;
  }

  pos += scnprintf(buf + pos, bufsz - pos, "mac id/color: %d / %d\n", mvmvif->id, mvmvif->color);
  pos += scnprintf(buf + pos, bufsz - pos, "bssid: %pM\n", vif->bss_conf.bssid);
  pos += scnprintf(buf + pos, bufsz - pos, "Load: %d\n", mvm->tcm.result.load[mvmvif->id]);
  pos += scnprintf(buf + pos, bufsz - pos, "QoS:\n");
  for (i = 0; i < ARRAY_SIZE(mvmvif->queue_params); i++)
    pos += scnprintf(buf + pos, bufsz - pos,
                     "\t%d: txop:%d - cw_min:%d - cw_max = %d - aifs = %d upasd = %d\n", i,
                     mvmvif->queue_params[i].txop, mvmvif->queue_params[i].cw_min,
                     mvmvif->queue_params[i].cw_max, mvmvif->queue_params[i].aifs,
                     mvmvif->queue_params[i].uapsd);

  if (vif->type == NL80211_IFTYPE_STATION && ap_sta_id != IWL_MVM_INVALID_STA) {
    struct iwl_mvm_sta* mvm_sta;

    mvm_sta = iwl_mvm_sta_from_staid_protected(mvm, ap_sta_id);
    if (mvm_sta) {
      pos += scnprintf(buf + pos, bufsz - pos, "ap_sta_id %d - reduced Tx power %d\n", ap_sta_id,
                       mvm_sta->bt_reduced_txpower);
    }
  }

  rcu_read_lock();
  chanctx_conf = rcu_dereference(vif->chanctx_conf);
  if (chanctx_conf)
    pos += scnprintf(buf + pos, bufsz - pos, "idle rx chains %d, active rx chains: %d\n",
                     chanctx_conf->rx_chains_static, chanctx_conf->rx_chains_dynamic);
  rcu_read_unlock();

  mutex_unlock(&mvm->mutex);

  return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
}

static void iwl_dbgfs_update_bf(struct ieee80211_vif* vif, enum iwl_dbgfs_bf_mask param,
                                int value) {
  struct iwl_mvm_vif* mvmvif = iwl_mvm_vif_from_mac80211(vif);
  struct iwl_dbgfs_bf* dbgfs_bf = &mvmvif->dbgfs_bf;

  dbgfs_bf->mask |= param;

  switch (param) {
    case MVM_DEBUGFS_BF_ENERGY_DELTA:
      dbgfs_bf->bf_energy_delta = value;
      break;
    case MVM_DEBUGFS_BF_ROAMING_ENERGY_DELTA:
      dbgfs_bf->bf_roaming_energy_delta = value;
      break;
    case MVM_DEBUGFS_BF_ROAMING_STATE:
      dbgfs_bf->bf_roaming_state = value;
      break;
    case MVM_DEBUGFS_BF_TEMP_THRESHOLD:
      dbgfs_bf->bf_temp_threshold = value;
      break;
    case MVM_DEBUGFS_BF_TEMP_FAST_FILTER:
      dbgfs_bf->bf_temp_fast_filter = value;
      break;
    case MVM_DEBUGFS_BF_TEMP_SLOW_FILTER:
      dbgfs_bf->bf_temp_slow_filter = value;
      break;
    case MVM_DEBUGFS_BF_ENABLE_BEACON_FILTER:
      dbgfs_bf->bf_enable_beacon_filter = value;
      break;
    case MVM_DEBUGFS_BF_DEBUG_FLAG:
      dbgfs_bf->bf_debug_flag = value;
      break;
    case MVM_DEBUGFS_BF_ESCAPE_TIMER:
      dbgfs_bf->bf_escape_timer = value;
      break;
    case MVM_DEBUGFS_BA_ENABLE_BEACON_ABORT:
      dbgfs_bf->ba_enable_beacon_abort = value;
      break;
    case MVM_DEBUGFS_BA_ESCAPE_TIMER:
      dbgfs_bf->ba_escape_timer = value;
      break;
  }
}

static ssize_t iwl_dbgfs_bf_params_write(struct ieee80211_vif* vif, char* buf, size_t count,
                                         loff_t* ppos) {
  struct iwl_mvm_vif* mvmvif = iwl_mvm_vif_from_mac80211(vif);
  struct iwl_mvm* mvm = mvmvif->mvm;
  enum iwl_dbgfs_bf_mask param;
  int value, ret = 0;

  if (!strncmp("bf_energy_delta=", buf, 16)) {
    if (sscanf(buf + 16, "%d", &value) != 1) {
      return -EINVAL;
    }
    if (value < IWL_BF_ENERGY_DELTA_MIN || value > IWL_BF_ENERGY_DELTA_MAX) {
      return -EINVAL;
    }
    param = MVM_DEBUGFS_BF_ENERGY_DELTA;
  } else if (!strncmp("bf_roaming_energy_delta=", buf, 24)) {
    if (sscanf(buf + 24, "%d", &value) != 1) {
      return -EINVAL;
    }
    if (value < IWL_BF_ROAMING_ENERGY_DELTA_MIN || value > IWL_BF_ROAMING_ENERGY_DELTA_MAX) {
      return -EINVAL;
    }
    param = MVM_DEBUGFS_BF_ROAMING_ENERGY_DELTA;
  } else if (!strncmp("bf_roaming_state=", buf, 17)) {
    if (sscanf(buf + 17, "%d", &value) != 1) {
      return -EINVAL;
    }
    if (value < IWL_BF_ROAMING_STATE_MIN || value > IWL_BF_ROAMING_STATE_MAX) {
      return -EINVAL;
    }
    param = MVM_DEBUGFS_BF_ROAMING_STATE;
  } else if (!strncmp("bf_temp_threshold=", buf, 18)) {
    if (sscanf(buf + 18, "%d", &value) != 1) {
      return -EINVAL;
    }
    if (value < IWL_BF_TEMP_THRESHOLD_MIN || value > IWL_BF_TEMP_THRESHOLD_MAX) {
      return -EINVAL;
    }
    param = MVM_DEBUGFS_BF_TEMP_THRESHOLD;
  } else if (!strncmp("bf_temp_fast_filter=", buf, 20)) {
    if (sscanf(buf + 20, "%d", &value) != 1) {
      return -EINVAL;
    }
    if (value < IWL_BF_TEMP_FAST_FILTER_MIN || value > IWL_BF_TEMP_FAST_FILTER_MAX) {
      return -EINVAL;
    }
    param = MVM_DEBUGFS_BF_TEMP_FAST_FILTER;
  } else if (!strncmp("bf_temp_slow_filter=", buf, 20)) {
    if (sscanf(buf + 20, "%d", &value) != 1) {
      return -EINVAL;
    }
    if (value < IWL_BF_TEMP_SLOW_FILTER_MIN || value > IWL_BF_TEMP_SLOW_FILTER_MAX) {
      return -EINVAL;
    }
    param = MVM_DEBUGFS_BF_TEMP_SLOW_FILTER;
  } else if (!strncmp("bf_enable_beacon_filter=", buf, 24)) {
    if (sscanf(buf + 24, "%d", &value) != 1) {
      return -EINVAL;
    }
    if (value < 0 || value > 1) {
      return -EINVAL;
    }
    param = MVM_DEBUGFS_BF_ENABLE_BEACON_FILTER;
  } else if (!strncmp("bf_debug_flag=", buf, 14)) {
    if (sscanf(buf + 14, "%d", &value) != 1) {
      return -EINVAL;
    }
    if (value < 0 || value > 1) {
      return -EINVAL;
    }
    param = MVM_DEBUGFS_BF_DEBUG_FLAG;
  } else if (!strncmp("bf_escape_timer=", buf, 16)) {
    if (sscanf(buf + 16, "%d", &value) != 1) {
      return -EINVAL;
    }
    if (value < IWL_BF_ESCAPE_TIMER_MIN || value > IWL_BF_ESCAPE_TIMER_MAX) {
      return -EINVAL;
    }
    param = MVM_DEBUGFS_BF_ESCAPE_TIMER;
  } else if (!strncmp("ba_escape_timer=", buf, 16)) {
    if (sscanf(buf + 16, "%d", &value) != 1) {
      return -EINVAL;
    }
    if (value < IWL_BA_ESCAPE_TIMER_MIN || value > IWL_BA_ESCAPE_TIMER_MAX) {
      return -EINVAL;
    }
    param = MVM_DEBUGFS_BA_ESCAPE_TIMER;
  } else if (!strncmp("ba_enable_beacon_abort=", buf, 23)) {
    if (sscanf(buf + 23, "%d", &value) != 1) {
      return -EINVAL;
    }
    if (value < 0 || value > 1) {
      return -EINVAL;
    }
    param = MVM_DEBUGFS_BA_ENABLE_BEACON_ABORT;
  } else {
    return -EINVAL;
  }

  mutex_lock(&mvm->mutex);
  iwl_dbgfs_update_bf(vif, param, value);
  if (param == MVM_DEBUGFS_BF_ENABLE_BEACON_FILTER && !value) {
    ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
  } else {
    ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
  }
  mutex_unlock(&mvm->mutex);

  return ret ?: count;
}

static ssize_t iwl_dbgfs_bf_params_read(struct file* file, char __user* user_buf, size_t count,
                                        loff_t* ppos) {
  struct ieee80211_vif* vif = file->private_data;
  struct iwl_mvm_vif* mvmvif = iwl_mvm_vif_from_mac80211(vif);
  char buf[256];
  int pos = 0;
  const size_t bufsz = sizeof(buf);
  struct iwl_beacon_filter_cmd cmd = {
      IWL_BF_CMD_CONFIG_DEFAULTS,
      .bf_enable_beacon_filter = cpu_to_le32(IWL_BF_ENABLE_BEACON_FILTER_DEFAULT),
      .ba_enable_beacon_abort = cpu_to_le32(IWL_BA_ENABLE_BEACON_ABORT_DEFAULT),
  };

  iwl_mvm_beacon_filter_debugfs_parameters(vif, &cmd);
  if (mvmvif->bf_data.bf_enabled) {
    cmd.bf_enable_beacon_filter = cpu_to_le32(1);
  } else {
    cmd.bf_enable_beacon_filter = 0;
  }

  pos +=
      scnprintf(buf + pos, bufsz - pos, "bf_energy_delta = %d\n", le32_to_cpu(cmd.bf_energy_delta));
  pos += scnprintf(buf + pos, bufsz - pos, "bf_roaming_energy_delta = %d\n",
                   le32_to_cpu(cmd.bf_roaming_energy_delta));
  pos += scnprintf(buf + pos, bufsz - pos, "bf_roaming_state = %d\n",
                   le32_to_cpu(cmd.bf_roaming_state));
  pos += scnprintf(buf + pos, bufsz - pos, "bf_temp_threshold = %d\n",
                   le32_to_cpu(cmd.bf_temp_threshold));
  pos += scnprintf(buf + pos, bufsz - pos, "bf_temp_fast_filter = %d\n",
                   le32_to_cpu(cmd.bf_temp_fast_filter));
  pos += scnprintf(buf + pos, bufsz - pos, "bf_temp_slow_filter = %d\n",
                   le32_to_cpu(cmd.bf_temp_slow_filter));
  pos += scnprintf(buf + pos, bufsz - pos, "bf_enable_beacon_filter = %d\n",
                   le32_to_cpu(cmd.bf_enable_beacon_filter));
  pos += scnprintf(buf + pos, bufsz - pos, "bf_debug_flag = %d\n", le32_to_cpu(cmd.bf_debug_flag));
  pos +=
      scnprintf(buf + pos, bufsz - pos, "bf_escape_timer = %d\n", le32_to_cpu(cmd.bf_escape_timer));
  pos +=
      scnprintf(buf + pos, bufsz - pos, "ba_escape_timer = %d\n", le32_to_cpu(cmd.ba_escape_timer));
  pos += scnprintf(buf + pos, bufsz - pos, "ba_enable_beacon_abort = %d\n",
                   le32_to_cpu(cmd.ba_enable_beacon_abort));

  return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
}

static inline char* iwl_dbgfs_is_match(char* name, char* buf) {
  int len = strlen(name);

  return !strncmp(name, buf, len) ? buf + len : NULL;
}

static ssize_t iwl_dbgfs_os_device_timediff_read(struct file* file, char __user* user_buf,
                                                 size_t count, loff_t* ppos) {
  struct ieee80211_vif* vif = file->private_data;
  struct iwl_mvm_vif* mvmvif = iwl_mvm_vif_from_mac80211(vif);
  struct iwl_mvm* mvm = mvmvif->mvm;
  uint32_t curr_gp2;
  uint64_t curr_os;
  s64 diff;
  char buf[64];
  const size_t bufsz = sizeof(buf);
  int pos = 0;

  iwl_mvm_get_sync_time(mvm, &curr_gp2, &curr_os);
  do_div(curr_os, NSEC_PER_USEC);
  diff = curr_os - curr_gp2;
  pos += scnprintf(buf + pos, bufsz - pos, "diff=%lld\n", diff);

  return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
}

static ssize_t iwl_dbgfs_tof_enable_write(struct ieee80211_vif* vif, char* buf, size_t count,
                                          loff_t* ppos) {
  struct iwl_mvm_vif* mvmvif = iwl_mvm_vif_from_mac80211(vif);
  struct iwl_mvm* mvm = mvmvif->mvm;
  uint32_t value;
  int ret = -EINVAL;
  char* data;

  mutex_lock(&mvm->mutex);

  data = iwl_dbgfs_is_match("tof_disabled=", buf);
  if (data) {
    ret = kstrtou32(data, 10, &value);
    if (ret == 0) {
      mvm->tof_data.tof_cfg.tof_disabled = value;
    }
    goto out;
  }

  data = iwl_dbgfs_is_match("one_sided_disabled=", buf);
  if (data) {
    ret = kstrtou32(data, 10, &value);
    if (ret == 0) {
      mvm->tof_data.tof_cfg.one_sided_disabled = value;
    }
    goto out;
  }

  data = iwl_dbgfs_is_match("is_debug_mode=", buf);
  if (data) {
    ret = kstrtou32(data, 10, &value);
    if (ret == 0) {
      mvm->tof_data.tof_cfg.is_debug_mode = value;
    }
    goto out;
  }

  data = iwl_dbgfs_is_match("is_buf=", buf);
  if (data) {
    ret = kstrtou32(data, 10, &value);
    if (ret == 0) {
      mvm->tof_data.tof_cfg.is_buf_required = value;
    }
    goto out;
  }

  data = iwl_dbgfs_is_match("send_tof_cfg=", buf);
  if (data) {
    ret = kstrtou32(data, 10, &value);
    if (ret == 0 && value) {
      ret = iwl_mvm_tof_config_cmd(mvm);
      goto out;
    }
  }

out:
  mutex_unlock(&mvm->mutex);

  return ret ?: count;
}

static ssize_t iwl_dbgfs_tof_enable_read(struct file* file, char __user* user_buf, size_t count,
                                         loff_t* ppos) {
  struct ieee80211_vif* vif = file->private_data;
  struct iwl_mvm_vif* mvmvif = iwl_mvm_vif_from_mac80211(vif);
  struct iwl_mvm* mvm = mvmvif->mvm;
  char buf[256];
  int pos = 0;
  const size_t bufsz = sizeof(buf);
  struct iwl_tof_config_cmd* cmd;

  cmd = &mvm->tof_data.tof_cfg;

  mutex_lock(&mvm->mutex);

  pos += scnprintf(buf + pos, bufsz - pos, "tof_disabled = %d\n", cmd->tof_disabled);
  pos += scnprintf(buf + pos, bufsz - pos, "one_sided_disabled = %d\n", cmd->one_sided_disabled);
  pos += scnprintf(buf + pos, bufsz - pos, "is_debug_mode = %d\n", cmd->is_debug_mode);
  pos += scnprintf(buf + pos, bufsz - pos, "is_buf_required = %d\n", cmd->is_buf_required);

  mutex_unlock(&mvm->mutex);

  return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
}

static ssize_t iwl_dbgfs_tof_responder_params_write(struct ieee80211_vif* vif, char* buf,
                                                    size_t count, loff_t* ppos) {
  struct iwl_mvm_vif* mvmvif = iwl_mvm_vif_from_mac80211(vif);
  struct iwl_mvm* mvm = mvmvif->mvm;
  uint32_t value;
  int ret = 0;
  char* data;

  mutex_lock(&mvm->mutex);

  data = iwl_dbgfs_is_match("burst_period=", buf);
  if (data) {
    ret = kstrtou32(data, 10, &value);
    if (!ret) {
      mvm->tof_data.responder_cfg.burst_period = cpu_to_le16(value);
    }
    goto out;
  }

  data = iwl_dbgfs_is_match("min_delta_ftm=", buf);
  if (data) {
    ret = kstrtou32(data, 10, &value);
    if (ret == 0) {
      mvm->tof_data.responder_cfg.min_delta_ftm = value;
    }
    goto out;
  }

  data = iwl_dbgfs_is_match("burst_duration=", buf);
  if (data) {
    ret = kstrtou32(data, 10, &value);
    if (ret == 0) {
      mvm->tof_data.responder_cfg.burst_duration = value;
    }
    goto out;
  }

  data = iwl_dbgfs_is_match("num_of_burst_exp=", buf);
  if (data) {
    ret = kstrtou32(data, 10, &value);
    if (ret == 0) {
      mvm->tof_data.responder_cfg.num_of_burst_exp = value;
    }
    goto out;
  }

  data = iwl_dbgfs_is_match("abort_responder=", buf);
  if (data) {
    ret = kstrtou32(data, 10, &value);
    if (ret == 0) {
      mvm->tof_data.responder_cfg.abort_responder = value;
    }
    goto out;
  }

  data = iwl_dbgfs_is_match("get_ch_est=", buf);
  if (data) {
    ret = kstrtou32(data, 10, &value);
    if (ret == 0) {
      mvm->tof_data.responder_cfg.get_ch_est = value;
    }
    goto out;
  }

  data = iwl_dbgfs_is_match("recv_sta_req_params=", buf);
  if (data) {
    ret = kstrtou32(data, 10, &value);
    if (ret == 0) {
      mvm->tof_data.responder_cfg.recv_sta_req_params = value;
    }
    goto out;
  }

  data = iwl_dbgfs_is_match("channel_num=", buf);
  if (data) {
    ret = kstrtou32(data, 10, &value);
    if (ret == 0) {
      mvm->tof_data.responder_cfg.channel_num = value;
    }
    goto out;
  }

  data = iwl_dbgfs_is_match("bandwidth=", buf);
  if (data) {
    ret = kstrtou32(data, 10, &value);
    if (ret == 0) {
      mvm->tof_data.responder_cfg.bandwidth = value;
    }
    goto out;
  }

  data = iwl_dbgfs_is_match("rate=", buf);
  if (data) {
    ret = kstrtou32(data, 10, &value);
    if (ret == 0) {
      mvm->tof_data.responder_cfg.rate = value;
    }
    goto out;
  }

  data = iwl_dbgfs_is_match("bssid=", buf);
  if (data) {
    uint8_t* mac = mvm->tof_data.responder_cfg.bssid;

    if (!mac_pton(data, mac)) {
      ret = -EINVAL;
      goto out;
    }
  }

  data = iwl_dbgfs_is_match("tsf_timer_offset_msecs=", buf);
  if (data) {
    ret = kstrtou32(data, 10, &value);
    if (ret == 0) {
      mvm->tof_data.responder_cfg.tsf_timer_offset_msecs = cpu_to_le16(value);
    }
    goto out;
  }

  data = iwl_dbgfs_is_match("toa_offset=", buf);
  if (data) {
    ret = kstrtou32(data, 10, &value);
    if (ret == 0) {
      mvm->tof_data.responder_cfg.toa_offset = cpu_to_le16(value);
    }
    goto out;
  }

  data = iwl_dbgfs_is_match("center_freq=", buf);
  if (data) {
    struct iwl_tof_responder_config_cmd* cmd = &mvm->tof_data.responder_cfg;

    ret = kstrtou32(data, 10, &value);
    if (ret == 0 && value) {
      enum nl80211_band band = (cmd->channel_num <= 14) ? NL80211_BAND_2GHZ : NL80211_BAND_5GHZ;
      struct ieee80211_channel chn = {
          .band = band,
          .center_freq = ieee80211_channel_to_frequency(cmd->channel_num, band),
      };
      struct cfg80211_chan_def chandef = {
          .chan = &chn,
          .center_freq1 = ieee80211_channel_to_frequency(value, band),
      };

      cmd->ctrl_ch_position = iwl_mvm_get_ctrl_pos(&chandef);
    }
    goto out;
  }

  data = iwl_dbgfs_is_match("ftm_per_burst=", buf);
  if (data) {
    ret = kstrtou32(data, 10, &value);
    if (ret == 0) {
      mvm->tof_data.responder_cfg.ftm_per_burst = value;
    }
    goto out;
  }

  data = iwl_dbgfs_is_match("ftm_resp_ts_avail=", buf);
  if (data) {
    ret = kstrtou32(data, 10, &value);
    if (ret == 0) {
      mvm->tof_data.responder_cfg.ftm_resp_ts_avail = value;
    }
    goto out;
  }

  data = iwl_dbgfs_is_match("asap_mode=", buf);
  if (data) {
    ret = kstrtou32(data, 10, &value);
    if (ret == 0) {
      mvm->tof_data.responder_cfg.asap_mode = value;
    }
    goto out;
  }

  data = iwl_dbgfs_is_match("send_responder_cfg=", buf);
  if (data) {
    ret = kstrtou32(data, 10, &value);
    if (ret == 0 && value) {
      ret = iwl_mvm_tof_responder_cmd(mvm, vif);
      goto out;
    }
  }

out:
  mutex_unlock(&mvm->mutex);

  return ret ?: count;
}

static ssize_t iwl_dbgfs_tof_responder_params_read(struct file* file, char __user* user_buf,
                                                   size_t count, loff_t* ppos) {
  struct ieee80211_vif* vif = file->private_data;
  struct iwl_mvm_vif* mvmvif = iwl_mvm_vif_from_mac80211(vif);
  struct iwl_mvm* mvm = mvmvif->mvm;
  char buf[256];
  int pos = 0;
  const size_t bufsz = sizeof(buf);
  struct iwl_tof_responder_config_cmd* cmd;

  cmd = &mvm->tof_data.responder_cfg;

  mutex_lock(&mvm->mutex);

  pos += scnprintf(buf + pos, bufsz - pos, "burst_period = %d\n", le16_to_cpu(cmd->burst_period));
  pos += scnprintf(buf + pos, bufsz - pos, "burst_duration = %d\n", cmd->burst_duration);
  pos += scnprintf(buf + pos, bufsz - pos, "bandwidth = %d\n", cmd->bandwidth);
  pos += scnprintf(buf + pos, bufsz - pos, "channel_num = %d\n", cmd->channel_num);
  pos += scnprintf(buf + pos, bufsz - pos, "ctrl_ch_position = 0x%x\n", cmd->ctrl_ch_position);
  pos += scnprintf(buf + pos, bufsz - pos, "bssid = %pM\n", cmd->bssid);
  pos += scnprintf(buf + pos, bufsz - pos, "min_delta_ftm = %d\n", cmd->min_delta_ftm);
  pos += scnprintf(buf + pos, bufsz - pos, "num_of_burst_exp = %d\n", cmd->num_of_burst_exp);
  pos += scnprintf(buf + pos, bufsz - pos, "rate = %d\n", cmd->rate);
  pos += scnprintf(buf + pos, bufsz - pos, "abort_responder = %d\n", cmd->abort_responder);
  pos += scnprintf(buf + pos, bufsz - pos, "get_ch_est = %d\n", cmd->get_ch_est);
  pos += scnprintf(buf + pos, bufsz - pos, "recv_sta_req_params = %d\n", cmd->recv_sta_req_params);
  pos += scnprintf(buf + pos, bufsz - pos, "ftm_per_burst = %d\n", cmd->ftm_per_burst);
  pos += scnprintf(buf + pos, bufsz - pos, "ftm_resp_ts_avail = %d\n", cmd->ftm_resp_ts_avail);
  pos += scnprintf(buf + pos, bufsz - pos, "asap_mode = %d\n", cmd->asap_mode);
  pos += scnprintf(buf + pos, bufsz - pos, "tsf_timer_offset_msecs = %d\n",
                   le16_to_cpu(cmd->tsf_timer_offset_msecs));
  pos += scnprintf(buf + pos, bufsz - pos, "toa_offset = %d\n", le16_to_cpu(cmd->toa_offset));

  mutex_unlock(&mvm->mutex);

  return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
}

static ssize_t iwl_dbgfs_tof_range_request_write(struct ieee80211_vif* vif, char* buf, size_t count,
                                                 loff_t* ppos) {
  struct iwl_mvm_vif* mvmvif = iwl_mvm_vif_from_mac80211(vif);
  struct iwl_mvm* mvm = mvmvif->mvm;
  uint32_t value;
  int ret = 0;
  char* data;

  mutex_lock(&mvm->mutex);

  data = iwl_dbgfs_is_match("request_id=", buf);
  if (data) {
    ret = kstrtou32(data, 10, &value);
    if (ret == 0) {
      mvm->tof_data.range_req.request_id = value;
    }
    goto out;
  }

  data = iwl_dbgfs_is_match("initiator=", buf);
  if (data) {
    ret = kstrtou32(data, 10, &value);
    if (ret == 0) {
      mvm->tof_data.range_req.initiator = value;
    }
    goto out;
  }

  data = iwl_dbgfs_is_match("one_sided_los_disable=", buf);
  if (data) {
    ret = kstrtou32(data, 10, &value);
    if (ret == 0) {
      mvm->tof_data.range_req.one_sided_los_disable = value;
    }
    goto out;
  }

  data = iwl_dbgfs_is_match("req_timeout=", buf);
  if (data) {
    ret = kstrtou32(data, 10, &value);
    if (ret == 0) {
      mvm->tof_data.range_req.req_timeout = value;
    }
    goto out;
  }

  data = iwl_dbgfs_is_match("report_policy=", buf);
  if (data) {
    ret = kstrtou32(data, 10, &value);
    if (ret == 0) {
      mvm->tof_data.range_req.report_policy = value;
    }
    goto out;
  }

  data = iwl_dbgfs_is_match("macaddr_random=", buf);
  if (data) {
    ret = kstrtou32(data, 10, &value);
    if (ret == 0) {
      mvm->tof_data.range_req.macaddr_random = value;
    }
    goto out;
  }

  data = iwl_dbgfs_is_match("num_of_ap=", buf);
  if (data) {
    ret = kstrtou32(data, 10, &value);
    if (ret == 0) {
      mvm->tof_data.range_req.num_of_ap = value;
    }
    goto out;
  }

  data = iwl_dbgfs_is_match("macaddr_template=", buf);
  if (data) {
    uint8_t mac[ETH_ALEN];

    if (!mac_pton(data, mac)) {
      ret = -EINVAL;
      goto out;
    }
    memcpy(mvm->tof_data.range_req.macaddr_template, mac, ETH_ALEN);
    goto out;
  }

  data = iwl_dbgfs_is_match("macaddr_mask=", buf);
  if (data) {
    uint8_t mac[ETH_ALEN];

    if (!mac_pton(data, mac)) {
      ret = -EINVAL;
      goto out;
    }
    memcpy(mvm->tof_data.range_req.macaddr_mask, mac, ETH_ALEN);
    goto out;
  }

  data = iwl_dbgfs_is_match("ap=", buf);
  if (data) {
    struct iwl_tof_range_req_ap_entry ap = {};
    int size = sizeof(struct iwl_tof_range_req_ap_entry);
    uint16_t burst_period;
    uint8_t* mac = ap.bssid;
    unsigned int i;

    if (sscanf(data,
               "%u %hhd %hhd %hhd"
               "%hhx:%hhx:%hhx:%hhx:%hhx:%hhx"
               "%hhd %hhd %hd"
               "%hhd %hhd %d"
               "%hhx %hhd %hhd %hhd",
               &i, &ap.channel_num, &ap.bandwidth, &ap.ctrl_ch_position, mac, mac + 1, mac + 2,
               mac + 3, mac + 4, mac + 5, &ap.measure_type, &ap.num_of_bursts, &burst_period,
               &ap.samples_per_burst, &ap.retries_per_sample, &ap.tsf_delta, &ap.location_req,
               &ap.asap_mode, &ap.enable_dyn_ack, &ap.rssi) != 20) {
      ret = -EINVAL;
      goto out;
    }
    if (i >= IWL_MVM_TOF_MAX_APS) {
      IWL_ERR(mvm, "Invalid AP index %d\n", i);
      ret = -EINVAL;
      goto out;
    }

    ap.burst_period = cpu_to_le16(burst_period);

    memcpy(&mvm->tof_data.range_req.ap[i], &ap, size);
    goto out;
  }

  data = iwl_dbgfs_is_match("send_range_request=", buf);
  if (data) {
    ret = kstrtou32(data, 10, &value);
    if (ret == 0 && value) {
      ret = iwl_mvm_tof_range_request_cmd(mvm, vif);
    }
    goto out;
  }

  ret = -EINVAL;
out:
  mutex_unlock(&mvm->mutex);
  return ret ?: count;
}

static ssize_t iwl_dbgfs_tof_range_request_read(struct file* file, char __user* user_buf,
                                                size_t count, loff_t* ppos) {
  struct ieee80211_vif* vif = file->private_data;
  struct iwl_mvm_vif* mvmvif = iwl_mvm_vif_from_mac80211(vif);
  struct iwl_mvm* mvm = mvmvif->mvm;
  char buf[512];
  int pos = 0;
  const size_t bufsz = sizeof(buf);
  struct iwl_tof_range_req_cmd* cmd;
  int i;

  cmd = &mvm->tof_data.range_req;

  mutex_lock(&mvm->mutex);

  pos += scnprintf(buf + pos, bufsz - pos, "request_id= %d\n", cmd->request_id);
  pos += scnprintf(buf + pos, bufsz - pos, "initiator= %d\n", cmd->initiator);
  pos +=
      scnprintf(buf + pos, bufsz - pos, "one_sided_los_disable = %d\n", cmd->one_sided_los_disable);
  pos += scnprintf(buf + pos, bufsz - pos, "req_timeout= %d\n", cmd->req_timeout);
  pos += scnprintf(buf + pos, bufsz - pos, "report_policy= %d\n", cmd->report_policy);
  pos += scnprintf(buf + pos, bufsz - pos, "macaddr_random= %d\n", cmd->macaddr_random);
  pos += scnprintf(buf + pos, bufsz - pos, "macaddr_template= %pM\n", cmd->macaddr_template);
  pos += scnprintf(buf + pos, bufsz - pos, "macaddr_mask= %pM\n", cmd->macaddr_mask);
  pos += scnprintf(buf + pos, bufsz - pos, "num_of_ap= %d\n", cmd->num_of_ap);
  for (i = 0; i < cmd->num_of_ap; i++) {
    struct iwl_tof_range_req_ap_entry* ap = &cmd->ap[i];

    pos += scnprintf(buf + pos, bufsz - pos,
                     "ap %.2d: channel_num=%hhd bw=%hhd"
                     " control=%hhd bssid=%pM type=%hhd"
                     " num_of_bursts=%hhd burst_period=%hd ftm=%hhd"
                     " retries=%hhd tsf_delta=%d"
                     " tsf_delta_direction=%hhd location_req=0x%hhx "
                     " asap=%hhd enable=%hhd rssi=%hhd\n",
                     i, ap->channel_num, ap->bandwidth, ap->ctrl_ch_position, ap->bssid,
                     ap->measure_type, ap->num_of_bursts, ap->burst_period, ap->samples_per_burst,
                     ap->retries_per_sample, ap->tsf_delta, ap->tsf_delta_direction,
                     ap->location_req, ap->asap_mode, ap->enable_dyn_ack, ap->rssi);
  }

  mutex_unlock(&mvm->mutex);

  return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
}

static ssize_t iwl_dbgfs_tof_range_req_ext_write(struct ieee80211_vif* vif, char* buf, size_t count,
                                                 loff_t* ppos) {
  struct iwl_mvm_vif* mvmvif = iwl_mvm_vif_from_mac80211(vif);
  struct iwl_mvm* mvm = mvmvif->mvm;
  uint32_t value;
  int ret = 0;
  char* data;

  mutex_lock(&mvm->mutex);

  data = iwl_dbgfs_is_match("tsf_timer_offset_msec=", buf);
  if (data) {
    ret = kstrtou32(data, 10, &value);
    if (ret == 0) {
      mvm->tof_data.range_req_ext.tsf_timer_offset_msec = cpu_to_le16(value);
    }
    goto out;
  }

  data = iwl_dbgfs_is_match("min_delta_ftm=", buf);
  if (data) {
    ret = kstrtou32(data, 10, &value);
    if (ret == 0) {
      mvm->tof_data.range_req_ext.min_delta_ftm = value;
    }
    goto out;
  }

  data = iwl_dbgfs_is_match("ftm_format_and_bw20M=", buf);
  if (data) {
    ret = kstrtou32(data, 10, &value);
    if (ret == 0) {
      mvm->tof_data.range_req_ext.ftm_format_and_bw20M = value;
    }
    goto out;
  }

  data = iwl_dbgfs_is_match("ftm_format_and_bw40M=", buf);
  if (data) {
    ret = kstrtou32(data, 10, &value);
    if (ret == 0) {
      mvm->tof_data.range_req_ext.ftm_format_and_bw40M = value;
    }
    goto out;
  }

  data = iwl_dbgfs_is_match("ftm_format_and_bw80M=", buf);
  if (data) {
    ret = kstrtou32(data, 10, &value);
    if (ret == 0) {
      mvm->tof_data.range_req_ext.ftm_format_and_bw80M = value;
    }
    goto out;
  }

  data = iwl_dbgfs_is_match("send_range_req_ext=", buf);
  if (data) {
    ret = kstrtou32(data, 10, &value);
    if (ret == 0 && value) {
      ret = iwl_mvm_tof_range_request_ext_cmd(mvm, vif);
    }
    goto out;
  }

  ret = -EINVAL;
out:
  mutex_unlock(&mvm->mutex);
  return ret ?: count;
}

static ssize_t iwl_dbgfs_tof_range_req_ext_read(struct file* file, char __user* user_buf,
                                                size_t count, loff_t* ppos) {
  struct ieee80211_vif* vif = file->private_data;
  struct iwl_mvm_vif* mvmvif = iwl_mvm_vif_from_mac80211(vif);
  struct iwl_mvm* mvm = mvmvif->mvm;
  char buf[256];
  int pos = 0;
  const size_t bufsz = sizeof(buf);
  struct iwl_tof_range_req_ext_cmd* cmd;

  cmd = &mvm->tof_data.range_req_ext;

  mutex_lock(&mvm->mutex);

  pos += scnprintf(buf + pos, bufsz - pos, "tsf_timer_offset_msec = %hd\n",
                   cmd->tsf_timer_offset_msec);
  pos += scnprintf(buf + pos, bufsz - pos, "min_delta_ftm = %hhd\n", cmd->min_delta_ftm);
  pos +=
      scnprintf(buf + pos, bufsz - pos, "ftm_format_and_bw20M = %hhd\n", cmd->ftm_format_and_bw20M);
  pos +=
      scnprintf(buf + pos, bufsz - pos, "ftm_format_and_bw40M = %hhd\n", cmd->ftm_format_and_bw40M);
  pos +=
      scnprintf(buf + pos, bufsz - pos, "ftm_format_and_bw80M = %hhd\n", cmd->ftm_format_and_bw80M);

  mutex_unlock(&mvm->mutex);
  return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
}

static ssize_t iwl_dbgfs_tof_range_abort_write(struct ieee80211_vif* vif, char* buf, size_t count,
                                               loff_t* ppos) {
  struct iwl_mvm_vif* mvmvif = iwl_mvm_vif_from_mac80211(vif);
  struct iwl_mvm* mvm = mvmvif->mvm;
  uint32_t value;
  int abort_id, ret = 0;
  char* data;

  mutex_lock(&mvm->mutex);

  data = iwl_dbgfs_is_match("abort_id=", buf);
  if (data) {
    ret = kstrtou32(data, 10, &value);
    if (ret == 0) {
      mvm->tof_data.last_abort_id = value;
    }
    goto out;
  }

  data = iwl_dbgfs_is_match("send_range_abort=", buf);
  if (data) {
    ret = kstrtou32(data, 10, &value);
    if (ret == 0 && value) {
      abort_id = mvm->tof_data.last_abort_id;
      ret = iwl_mvm_tof_range_abort_cmd(mvm, abort_id);
      goto out;
    }
  }

out:
  mutex_unlock(&mvm->mutex);
  return ret ?: count;
}

static ssize_t iwl_dbgfs_tof_range_abort_read(struct file* file, char __user* user_buf,
                                              size_t count, loff_t* ppos) {
  struct ieee80211_vif* vif = file->private_data;
  struct iwl_mvm_vif* mvmvif = iwl_mvm_vif_from_mac80211(vif);
  struct iwl_mvm* mvm = mvmvif->mvm;
  char buf[32];
  int pos = 0;
  const size_t bufsz = sizeof(buf);
  int last_abort_id;

  mutex_lock(&mvm->mutex);
  last_abort_id = mvm->tof_data.last_abort_id;
  mutex_unlock(&mvm->mutex);

  pos += scnprintf(buf + pos, bufsz - pos, "last_abort_id = %d\n", last_abort_id);
  return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
}

static ssize_t iwl_dbgfs_tof_range_response_read(struct file* file, char __user* user_buf,
                                                 size_t count, loff_t* ppos) {
  struct ieee80211_vif* vif = file->private_data;
  struct iwl_mvm_vif* mvmvif = iwl_mvm_vif_from_mac80211(vif);
  struct iwl_mvm* mvm = mvmvif->mvm;
  char* buf;
  int pos = 0;
  const size_t bufsz = sizeof(struct iwl_tof_range_rsp_ntfy) + 256;
  struct iwl_tof_range_rsp_ntfy* cmd;
  int i, ret;

  buf = kzalloc(bufsz, GFP_KERNEL);
  if (!buf) {
    return -ENOMEM;
  }

  mutex_lock(&mvm->mutex);
  cmd = &mvm->tof_data.range_resp;

  pos += scnprintf(buf + pos, bufsz - pos, "request_id = %d\n", cmd->request_id);
  pos += scnprintf(buf + pos, bufsz - pos, "status = %d\n", cmd->request_status);
  pos += scnprintf(buf + pos, bufsz - pos, "last_in_batch = %d\n", cmd->last_in_batch);
  pos += scnprintf(buf + pos, bufsz - pos, "num_of_aps = %d\n", cmd->num_of_aps);
  for (i = 0; i < cmd->num_of_aps; i++) {
    struct iwl_tof_range_rsp_ap_entry_ntfy* ap = &cmd->ap[i];

    pos += scnprintf(buf + pos, bufsz - pos,
                     "ap %.2d: bssid=%pM status=%hhd bw=%hhd"
                     " rtt=%d rtt_var=%d rtt_spread=%d"
                     " rssi=%hhd  rssi_spread=%hhd"
                     " range=%d range_var=%d"
                     " time_stamp=%d\n",
                     i, ap->bssid, ap->measure_status, ap->measure_bw, ap->rtt, ap->rtt_variance,
                     ap->rtt_spread, ap->rssi, ap->rssi_spread, ap->range, ap->range_variance,
                     ap->timestamp);
  }
  mutex_unlock(&mvm->mutex);

  ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
  kfree(buf);
  return ret;
}

static ssize_t iwl_dbgfs_low_latency_write(struct ieee80211_vif* vif, char* buf, size_t count,
                                           loff_t* ppos) {
  struct iwl_mvm_vif* mvmvif = iwl_mvm_vif_from_mac80211(vif);
  struct iwl_mvm* mvm = mvmvif->mvm;
  uint8_t value;
  int ret;

  ret = kstrtou8(buf, 0, &value);
  if (ret) {
    return ret;
  }
  if (value > 1) {
    return -EINVAL;
  }

  mutex_lock(&mvm->mutex);
  iwl_mvm_update_low_latency(mvm, vif, value, LOW_LATENCY_DEBUGFS);
  mutex_unlock(&mvm->mutex);

  return count;
}

static ssize_t iwl_dbgfs_low_latency_read(struct file* file, char __user* user_buf, size_t count,
                                          loff_t* ppos) {
  struct ieee80211_vif* vif = file->private_data;
  struct iwl_mvm_vif* mvmvif = iwl_mvm_vif_from_mac80211(vif);
  char buf[30] = {};
  int len;

  len = scnprintf(
      buf, sizeof(buf) - 1, "traffic=%d\ndbgfs=%d\nvcmd=%d\nvif_type=%d\n",
      !!(mvmvif->low_latency & LOW_LATENCY_TRAFFIC), !!(mvmvif->low_latency & LOW_LATENCY_DEBUGFS),
      !!(mvmvif->low_latency & LOW_LATENCY_VCMD), !!(mvmvif->low_latency & LOW_LATENCY_VIF_TYPE));
  return simple_read_from_buffer(user_buf, count, ppos, buf, len);
}

static ssize_t iwl_dbgfs_uapsd_misbehaving_read(struct file* file, char __user* user_buf,
                                                size_t count, loff_t* ppos) {
  struct ieee80211_vif* vif = file->private_data;
  struct iwl_mvm_vif* mvmvif = iwl_mvm_vif_from_mac80211(vif);
  char buf[20];
  int len;

  len = sprintf(buf, "%pM\n", mvmvif->uapsd_misbehaving_bssid);
  return simple_read_from_buffer(user_buf, count, ppos, buf, len);
}

static ssize_t iwl_dbgfs_uapsd_misbehaving_write(struct ieee80211_vif* vif, char* buf, size_t count,
                                                 loff_t* ppos) {
  struct iwl_mvm_vif* mvmvif = iwl_mvm_vif_from_mac80211(vif);
  struct iwl_mvm* mvm = mvmvif->mvm;
  bool ret;

  mutex_lock(&mvm->mutex);
  ret = mac_pton(buf, mvmvif->uapsd_misbehaving_bssid);
  mutex_unlock(&mvm->mutex);

  return ret ? count : -EINVAL;
}

static ssize_t iwl_dbgfs_rx_phyinfo_write(struct ieee80211_vif* vif, char* buf, size_t count,
                                          loff_t* ppos) {
  struct iwl_mvm_vif* mvmvif = iwl_mvm_vif_from_mac80211(vif);
  struct iwl_mvm* mvm = mvmvif->mvm;
  struct ieee80211_chanctx_conf* chanctx_conf;
  struct iwl_mvm_phy_ctxt* phy_ctxt;
  uint16_t value;
  int ret;

  ret = kstrtou16(buf, 0, &value);
  if (ret) {
    return ret;
  }

  mutex_lock(&mvm->mutex);
  rcu_read_lock();

  chanctx_conf = rcu_dereference(vif->chanctx_conf);
  /* make sure the channel context is assigned */
  if (!chanctx_conf) {
    rcu_read_unlock();
    mutex_unlock(&mvm->mutex);
    return -EINVAL;
  }

  phy_ctxt = &mvm->phy_ctxts[*(uint16_t*)chanctx_conf->drv_priv];
  rcu_read_unlock();

  mvm->dbgfs_rx_phyinfo = value;

  ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chanctx_conf->min_def,
                                 chanctx_conf->rx_chains_static, chanctx_conf->rx_chains_dynamic);
  mutex_unlock(&mvm->mutex);

  return ret ?: count;
}

static ssize_t iwl_dbgfs_rx_phyinfo_read(struct file* file, char __user* user_buf, size_t count,
                                         loff_t* ppos) {
  struct ieee80211_vif* vif = file->private_data;
  struct iwl_mvm_vif* mvmvif = iwl_mvm_vif_from_mac80211(vif);
  char buf[8];
  int len;

  len = scnprintf(buf, sizeof(buf), "0x%04x\n", mvmvif->mvm->dbgfs_rx_phyinfo);

  return simple_read_from_buffer(user_buf, count, ppos, buf, len);
}

static void iwl_dbgfs_quota_check(void* data, uint8_t* mac, struct ieee80211_vif* vif) {
  struct iwl_mvm_vif* mvmvif = iwl_mvm_vif_from_mac80211(vif);
  int* ret = data;

  if (mvmvif->dbgfs_quota_min) {
    *ret = -EINVAL;
  }
}

static ssize_t iwl_dbgfs_quota_min_write(struct ieee80211_vif* vif, char* buf, size_t count,
                                         loff_t* ppos) {
  struct iwl_mvm_vif* mvmvif = iwl_mvm_vif_from_mac80211(vif);
  struct iwl_mvm* mvm = mvmvif->mvm;
  uint16_t value;
  int ret;

#ifdef CPTCFG_IWLMVM_ADVANCED_QUOTA_MGMT
  /* not yet supported in that code */
  if (!IWL_MVM_DYNQUOTA_DISABLED) {
    return -EINVAL;
  }
#endif

  ret = kstrtou16(buf, 0, &value);
  if (ret) {
    return ret;
  }

  if (value > 95) {
    return -EINVAL;
  }

  mutex_lock(&mvm->mutex);

  mvmvif->dbgfs_quota_min = 0;
  ieee80211_iterate_interfaces(mvm->hw, IEEE80211_IFACE_ITER_NORMAL, iwl_dbgfs_quota_check, &ret);
  if (ret == 0) {
    mvmvif->dbgfs_quota_min = value;
    iwl_mvm_update_quotas(mvm, false, NULL);
  }
  mutex_unlock(&mvm->mutex);

  return ret ?: count;
}

static ssize_t iwl_dbgfs_quota_min_read(struct file* file, char __user* user_buf, size_t count,
                                        loff_t* ppos) {
  struct ieee80211_vif* vif = file->private_data;
  struct iwl_mvm_vif* mvmvif = iwl_mvm_vif_from_mac80211(vif);
  char buf[10];
  int len;

  len = scnprintf(buf, sizeof(buf), "%d\n", mvmvif->dbgfs_quota_min);

  return simple_read_from_buffer(user_buf, count, ppos, buf, len);
}

#ifdef CPTCFG_IWLWIFI_DEBUG_HOST_CMD_ENABLED
static ssize_t iwl_dbgfs_twt_setup_write(struct ieee80211_vif* vif, char* buf, size_t count,
                                         loff_t* ppos) {
  struct iwl_mvm_vif* mvmvif = iwl_mvm_vif_from_mac80211(vif);
  struct iwl_mvm* mvm = mvmvif->mvm;
  struct iwl_dhc_twt_operation* dhc_twt_cmd;
  struct iwl_dhc_cmd* cmd;

  uint32_t twt_operation;
  uint64_t target_wake_time;
  uint32_t interval_exp;
  uint32_t interval_mantissa;
  uint32_t min_wake_duration;
  uint8_t trigger;
  uint8_t flow_type;
  uint8_t flow_id;
  uint8_t protection;
  int ret;

  ret = sscanf(buf, "%u %llu %u %u %u %hhu %hhu %hhu %hhu", &twt_operation, &target_wake_time,
               &interval_exp, &interval_mantissa, &min_wake_duration, &trigger, &flow_type,
               &flow_id, &protection);

  if (ret != 9) {
    return -EINVAL;
  }

  cmd = kzalloc(sizeof(*cmd) + sizeof(*dhc_twt_cmd), GFP_KERNEL);
  if (!cmd) {
    return -ENOMEM;
  }

  dhc_twt_cmd = (void*)cmd->data;
  dhc_twt_cmd->mac_id = cpu_to_le32(mvmvif->id);
  dhc_twt_cmd->twt_operation = cpu_to_le32(twt_operation);
  dhc_twt_cmd->target_wake_time = cpu_to_le64(target_wake_time);
  dhc_twt_cmd->interval_exp = cpu_to_le32(interval_exp);
  dhc_twt_cmd->interval_mantissa = cpu_to_le32(interval_mantissa);
  dhc_twt_cmd->min_wake_duration = cpu_to_le32(min_wake_duration);
  dhc_twt_cmd->trigger = trigger;
  dhc_twt_cmd->flow_type = flow_type;
  dhc_twt_cmd->flow_id = flow_id;
  dhc_twt_cmd->protection = protection;

  cmd->length = cpu_to_le32(sizeof(*dhc_twt_cmd) >> 2);
  cmd->index_and_mask =
      cpu_to_le32(DHC_TABLE_INTEGRATION | DHC_TARGET_UMAC | DHC_INT_UMAC_TWT_OPERATION);

  mutex_lock(&mvm->mutex);
  ret = iwl_mvm_send_cmd_pdu(mvm, iwl_cmd_id(DEBUG_HOST_COMMAND, IWL_ALWAYS_LONG_GROUP, 0), 0,
                             sizeof(*cmd) + sizeof(*dhc_twt_cmd), cmd);
  mutex_unlock(&mvm->mutex);
  kfree(cmd);

  return ret ?: count;
}
#endif /* CPTCFG_IWLWIFI_DEBUG_HOST_CMD_ENABLED */

#define MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz) \
  _MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct ieee80211_vif)
#define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz) \
  _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct ieee80211_vif)
#define MVM_DEBUGFS_ADD_FILE_VIF(name, parent, mode)                             \
  do {                                                                           \
    if (!debugfs_create_file(#name, mode, parent, vif, &iwl_dbgfs_##name##_ops)) \
      goto err;                                                                  \
  } while (0)

MVM_DEBUGFS_READ_FILE_OPS(mac_params);
MVM_DEBUGFS_READ_FILE_OPS(tx_pwr_lmt);
MVM_DEBUGFS_READ_WRITE_FILE_OPS(pm_params, 32);
MVM_DEBUGFS_READ_WRITE_FILE_OPS(bf_params, 256);
MVM_DEBUGFS_READ_WRITE_FILE_OPS(low_latency, 10);
MVM_DEBUGFS_READ_WRITE_FILE_OPS(uapsd_misbehaving, 20);
MVM_DEBUGFS_READ_WRITE_FILE_OPS(rx_phyinfo, 10);
MVM_DEBUGFS_READ_WRITE_FILE_OPS(tof_enable, 32);
MVM_DEBUGFS_READ_WRITE_FILE_OPS(tof_range_request, 512);
MVM_DEBUGFS_READ_WRITE_FILE_OPS(tof_range_req_ext, 32);
MVM_DEBUGFS_READ_WRITE_FILE_OPS(tof_range_abort, 32);
MVM_DEBUGFS_READ_FILE_OPS(tof_range_response);
MVM_DEBUGFS_READ_WRITE_FILE_OPS(tof_responder_params, 32);
MVM_DEBUGFS_READ_WRITE_FILE_OPS(quota_min, 32);
MVM_DEBUGFS_READ_FILE_OPS(os_device_timediff);
#ifdef CPTCFG_IWLWIFI_DEBUG_HOST_CMD_ENABLED
MVM_DEBUGFS_WRITE_FILE_OPS(twt_setup, 256);
#endif

void iwl_mvm_vif_dbgfs_register(struct iwl_mvm* mvm, struct ieee80211_vif* vif) {
  struct dentry* dbgfs_dir = vif->debugfs_dir;
  struct iwl_mvm_vif* mvmvif = iwl_mvm_vif_from_mac80211(vif);
  char buf[100];

  /*
   * Check if debugfs directory already exist before creating it.
   * This may happen when, for example, resetting hw or suspend-resume
   */
  if (!dbgfs_dir || mvmvif->dbgfs_dir) {
    return;
  }

  mvmvif->dbgfs_dir = debugfs_create_dir("iwlmvm", dbgfs_dir);

  if (!mvmvif->dbgfs_dir) {
#if LINUX_VERSION_IS_GEQ(3, 12, 0)
    IWL_ERR(mvm, "Failed to create debugfs directory under %pd\n", dbgfs_dir);
#else
    IWL_ERR(mvm, "Failed to create debugfs directory under %s\n", dbgfs_dir->d_name.name);
#endif
    return;
  }

  if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM &&
      ((vif->type == NL80211_IFTYPE_STATION && !vif->p2p) ||
       (vif->type == NL80211_IFTYPE_STATION && vif->p2p))) {
    MVM_DEBUGFS_ADD_FILE_VIF(pm_params, mvmvif->dbgfs_dir, 0600);
  }

  MVM_DEBUGFS_ADD_FILE_VIF(tx_pwr_lmt, mvmvif->dbgfs_dir, 0400);
  MVM_DEBUGFS_ADD_FILE_VIF(mac_params, mvmvif->dbgfs_dir, 0400);
  MVM_DEBUGFS_ADD_FILE_VIF(low_latency, mvmvif->dbgfs_dir, 0600);
  MVM_DEBUGFS_ADD_FILE_VIF(uapsd_misbehaving, mvmvif->dbgfs_dir, 0600);
  MVM_DEBUGFS_ADD_FILE_VIF(rx_phyinfo, mvmvif->dbgfs_dir, 0600);
  MVM_DEBUGFS_ADD_FILE_VIF(quota_min, mvmvif->dbgfs_dir, 0600);
  MVM_DEBUGFS_ADD_FILE_VIF(os_device_timediff, mvmvif->dbgfs_dir, 0400);

  if (vif->type == NL80211_IFTYPE_STATION && !vif->p2p && mvmvif == mvm->bf_allowed_vif) {
    MVM_DEBUGFS_ADD_FILE_VIF(bf_params, mvmvif->dbgfs_dir, 0600);
  }

#ifdef CPTCFG_IWLWIFI_DEBUG_HOST_CMD_ENABLED
  if (vif->type == NL80211_IFTYPE_STATION) {
    MVM_DEBUGFS_ADD_FILE_VIF(twt_setup, mvmvif->dbgfs_dir, S_IWUSR);
  }
#endif

  if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_TOF_SUPPORT) && !vif->p2p &&
      (vif->type != NL80211_IFTYPE_P2P_DEVICE) && (vif->type != NL80211_IFTYPE_NAN)) {
    if (IWL_MVM_TOF_IS_RESPONDER && vif->type == NL80211_IFTYPE_AP) {
      MVM_DEBUGFS_ADD_FILE_VIF(tof_responder_params, mvmvif->dbgfs_dir, 0600);
    }

    MVM_DEBUGFS_ADD_FILE_VIF(tof_range_request, mvmvif->dbgfs_dir, 0600);
    MVM_DEBUGFS_ADD_FILE_VIF(tof_range_req_ext, mvmvif->dbgfs_dir, 0600);
    MVM_DEBUGFS_ADD_FILE_VIF(tof_enable, mvmvif->dbgfs_dir, 0600);
    MVM_DEBUGFS_ADD_FILE_VIF(tof_range_abort, mvmvif->dbgfs_dir, 0600);
    MVM_DEBUGFS_ADD_FILE_VIF(tof_range_response, mvmvif->dbgfs_dir, 0400);
  }

  /*
   * Create symlink for convenience pointing to interface specific
   * debugfs entries for the driver. For example, under
   * /sys/kernel/debug/iwlwifi/0000\:02\:00.0/iwlmvm/
   * find
   * netdev:wlan0 -> ../../../ieee80211/phy0/netdev:wlan0/iwlmvm/
   */
#if LINUX_VERSION_IS_GEQ(3, 12, 0)
  snprintf(buf, 100, "../../../%pd3/%pd", dbgfs_dir, mvmvif->dbgfs_dir);
#else
  snprintf(buf, 100, "../../../%s/%s/%s/%s", dbgfs_dir->d_parent->d_parent->d_name.name,
           dbgfs_dir->d_parent->d_name.name, dbgfs_dir->d_name.name,
           mvmvif->dbgfs_dir->d_name.name);
#endif

  mvmvif->dbgfs_slink = debugfs_create_symlink(dbgfs_dir->d_name.name, mvm->debugfs_dir, buf);
  if (!mvmvif->dbgfs_slink)
#if LINUX_VERSION_IS_GEQ(3, 12, 0)
    IWL_ERR(mvm, "Can't create debugfs symbolic link under %pd\n", dbgfs_dir);
#else
    IWL_ERR(mvm, "Can't create debugfs symbolic link under %s\n", dbgfs_dir->d_name.name);
#endif
  return;
err:
  IWL_ERR(mvm, "Can't create debugfs entity\n");
}

void iwl_mvm_vif_dbgfs_clean(struct iwl_mvm* mvm, struct ieee80211_vif* vif) {
  struct iwl_mvm_vif* mvmvif = iwl_mvm_vif_from_mac80211(vif);

  debugfs_remove(mvmvif->dbgfs_slink);
  mvmvif->dbgfs_slink = NULL;

  debugfs_remove_recursive(mvmvif->dbgfs_dir);
  mvmvif->dbgfs_dir = NULL;
}