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tegrakernel/kernel/kernel-4.9/drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c

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/******************************************************************************
*
* 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 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
* USA
*
* The full GNU General Public License is included in this distribution
* in the file called COPYING.
*
* Contact Information:
* Intel Linux Wireless <linuxwifi@intel.com>
* 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 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, "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_STATION_COUNT) {
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;
bool prev;
u8 value;
int ret;
ret = kstrtou8(buf, 0, &value);
if (ret)
return ret;
if (value > 1)
return -EINVAL;
mutex_lock(&mvm->mutex);
prev = iwl_mvm_vif_low_latency(mvmvif);
mvmvif->low_latency_dbgfs = value;
iwl_mvm_update_low_latency(mvm, vif, prev);
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 = snprintf(buf, sizeof(buf) - 1,
"traffic=%d\ndbgfs=%d\nvcmd=%d\n",
mvmvif->low_latency_traffic,
mvmvif->low_latency_dbgfs,
mvmvif->low_latency_vcmd);
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];
snprintf(buf, sizeof(buf), "0x%04x\n", mvmvif->mvm->dbgfs_rx_phyinfo);
return simple_read_from_buffer(user_buf, count, ppos, buf, sizeof(buf));
}
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 = snprintf(buf, sizeof(buf), "%d\n", mvmvif->dbgfs_quota_min);
return simple_read_from_buffer(user_buf, count, ppos, buf, len);
}
static const char * const chanwidths[] = {
[NL80211_CHAN_WIDTH_20_NOHT] = "noht",
[NL80211_CHAN_WIDTH_20] = "ht20",
[NL80211_CHAN_WIDTH_40] = "ht40",
[NL80211_CHAN_WIDTH_80] = "vht80",
[NL80211_CHAN_WIDTH_80P80] = "vht80p80",
[NL80211_CHAN_WIDTH_160] = "vht160",
};
static bool iwl_mvm_lqm_notif_wait(struct iwl_notif_wait_data *notif_wait,
struct iwl_rx_packet *pkt, void *data)
{
struct ieee80211_vif *vif = data;
struct iwl_mvm *mvm =
container_of(notif_wait, struct iwl_mvm, notif_wait);
struct iwl_link_qual_msrmnt_notif *report = (void *)pkt->data;
u32 num_of_stations = le32_to_cpu(report->number_of_stations);
int i;
IWL_INFO(mvm, "LQM report:\n");
IWL_INFO(mvm, "\tstatus: %d\n", report->status);
IWL_INFO(mvm, "\tmacID: %d\n", le32_to_cpu(report->mac_id));
IWL_INFO(mvm, "\ttx_frame_dropped: %d\n",
le32_to_cpu(report->tx_frame_dropped));
IWL_INFO(mvm, "\ttime_in_measurement_window: %d us\n",
le32_to_cpu(report->time_in_measurement_window));
IWL_INFO(mvm, "\ttotal_air_time_other_stations: %d\n",
le32_to_cpu(report->total_air_time_other_stations));
IWL_INFO(mvm, "\tchannel_freq: %d\n",
vif->bss_conf.chandef.center_freq1);
IWL_INFO(mvm, "\tchannel_width: %s\n",
chanwidths[vif->bss_conf.chandef.width]);
IWL_INFO(mvm, "\tnumber_of_stations: %d\n", num_of_stations);
for (i = 0; i < num_of_stations; i++)
IWL_INFO(mvm, "\t\tsta[%d]: %d\n", i,
report->frequent_stations_air_time[i]);
return true;
}
static ssize_t iwl_dbgfs_lqm_send_cmd_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_notification_wait wait_lqm_notif;
static u16 lqm_notif[] = {
WIDE_ID(MAC_CONF_GROUP,
LINK_QUALITY_MEASUREMENT_COMPLETE_NOTIF)
};
int err;
u32 duration;
u32 timeout;
if (sscanf(buf, "%d,%d", &duration, &timeout) != 2)
return -EINVAL;
iwl_init_notification_wait(&mvm->notif_wait, &wait_lqm_notif,
lqm_notif, ARRAY_SIZE(lqm_notif),
iwl_mvm_lqm_notif_wait, vif);
mutex_lock(&mvm->mutex);
err = iwl_mvm_send_lqm_cmd(vif, LQM_CMD_OPERATION_START_MEASUREMENT,
duration, timeout);
mutex_unlock(&mvm->mutex);
if (err) {
IWL_ERR(mvm, "Failed to send lqm cmdf(err=%d)\n", err);
iwl_remove_notification(&mvm->notif_wait, &wait_lqm_notif);
return err;
}
/* wait for 2 * timeout (safety guard) and convert to jiffies*/
timeout = msecs_to_jiffies((timeout * 2) / 1000);
err = iwl_wait_notification(&mvm->notif_wait, &wait_lqm_notif,
timeout);
if (err)
IWL_ERR(mvm, "Getting lqm notif timed out\n");
return count;
}
#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_WRITE_FILE_OPS(lqm_send_cmd, 64);
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 (!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, S_IWUSR |
S_IRUSR);
MVM_DEBUGFS_ADD_FILE_VIF(tx_pwr_lmt, mvmvif->dbgfs_dir, S_IRUSR);
MVM_DEBUGFS_ADD_FILE_VIF(mac_params, mvmvif->dbgfs_dir, S_IRUSR);
MVM_DEBUGFS_ADD_FILE_VIF(low_latency, mvmvif->dbgfs_dir,
S_IRUSR | S_IWUSR);
MVM_DEBUGFS_ADD_FILE_VIF(uapsd_misbehaving, mvmvif->dbgfs_dir,
S_IRUSR | S_IWUSR);
MVM_DEBUGFS_ADD_FILE_VIF(rx_phyinfo, mvmvif->dbgfs_dir,
S_IRUSR | S_IWUSR);
MVM_DEBUGFS_ADD_FILE_VIF(quota_min, mvmvif->dbgfs_dir,
S_IRUSR | S_IWUSR);
MVM_DEBUGFS_ADD_FILE_VIF(lqm_send_cmd, mvmvif->dbgfs_dir, S_IWUSR);
MVM_DEBUGFS_ADD_FILE_VIF(os_device_timediff,
mvmvif->dbgfs_dir, S_IRUSR);
if (vif->type == NL80211_IFTYPE_STATION && !vif->p2p &&
mvmvif == mvm->bf_allowed_vif)
MVM_DEBUGFS_ADD_FILE_VIF(bf_params, mvmvif->dbgfs_dir,
S_IRUSR | S_IWUSR);
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,
S_IRUSR | S_IWUSR);
MVM_DEBUGFS_ADD_FILE_VIF(tof_range_request, mvmvif->dbgfs_dir,
S_IRUSR | S_IWUSR);
MVM_DEBUGFS_ADD_FILE_VIF(tof_range_req_ext, mvmvif->dbgfs_dir,
S_IRUSR | S_IWUSR);
MVM_DEBUGFS_ADD_FILE_VIF(tof_enable, mvmvif->dbgfs_dir,
S_IRUSR | S_IWUSR);
MVM_DEBUGFS_ADD_FILE_VIF(tof_range_abort, mvmvif->dbgfs_dir,
S_IRUSR | S_IWUSR);
MVM_DEBUGFS_ADD_FILE_VIF(tof_range_response, mvmvif->dbgfs_dir,
S_IRUSR);
}
/*
* 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;
}
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