/****************************************************************************** * * This file is provided under a dual BSD/GPLv2 license. When using or * redistributing this file, you may do so under either license. * * GPL LICENSE SUMMARY * * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH * Copyright(c) 2016 - 2017 Intel Deutschland GmbH * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as * published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * The full GNU General Public License is included in this distribution * in the file called COPYING. * * Contact Information: * Intel Linux Wireless * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 * * BSD LICENSE * * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH * Copyright(c) 2016 - 2017 Intel Deutschland GmbH * 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 "mvm.h" #include "fw/api/tof.h" #include "debugfs.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); 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; u8 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; 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; u32 curr_gp2; u64 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; u32 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; u32 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) { u8 *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; u32 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) { u8 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) { u8 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); u16 burst_period; u8 *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; u32 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; u32 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; u8 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; u16 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[*(u16 *)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, u8 *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; u16 value; int ret; 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); } #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); 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 (IS_ERR_OR_NULL(mvmvif->dbgfs_dir)) { IWL_ERR(mvm, "Failed to create debugfs directory under %pd\n", dbgfs_dir); return; } if (!mvmvif->dbgfs_dir) { IWL_ERR(mvm, "Failed to create debugfs directory under %pd\n", dbgfs_dir); 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); if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_TOF_SUPPORT) && !vif->p2p && (vif->type != NL80211_IFTYPE_P2P_DEVICE)) { 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/ */ snprintf(buf, 100, "../../../%pd3/%pd", dbgfs_dir, mvmvif->dbgfs_dir); mvmvif->dbgfs_slink = debugfs_create_symlink(dbgfs_dir->d_name.name, mvm->debugfs_dir, buf); if (!mvmvif->dbgfs_slink) IWL_ERR(mvm, "Can't create debugfs symbolic link under %pd\n", dbgfs_dir); 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; }